CN115814980A - Liquid diversion system, control method and device - Google Patents

Abstract

Embodiments of the present invention provide a liquid distribution system, control method, and device, including: a liquid pressure unit, a solenoid valve, a control assembly, and a flow distribution pipeline; there are at least two solenoid valves, and the control assembly is used to control The electromagnetic valve and the liquid pressure unit, according to the correlation between the first preset pressure value and the first set physical parameter value, when the acquired physical parameter value does not reach the first set physical parameter value, turn on the the liquid pressure unit and close the electromagnetic valve, when the obtained physical parameter value reaches the first set physical parameter value, close the liquid pressure unit so that the pressure value of the shunt line reaches the first Preset the pressure value, increase the sealing performance of each solenoid valve and booster pump in the liquid pressure unit, prevent leakage, and ensure the stability and timeliness of the liquid output of each branch pipeline.

Description

A liquid distribution system, control method and device

technical field

The invention relates to the field of liquid delivery control, in particular to a liquid distribution system, control method and device.

Background technique

At present, most of the spraying systems are single-pump and single-circuit, that is, one booster pump drives one spraying pipeline, which has a single function. The more nozzles, the greater the power and flow of the booster pump, and the higher the cost and energy consumption.

In the liquid splitting spray system in which the inventor built multiple solenoid valves in parallel, a booster pump is used to connect multiple solenoid valves, and by separately opening the booster pump and one of the multiple solenoid valves, a booster pump can be driven. The number of nozzles is N times that of one road, which greatly reduces the hardware cost; the liquid is pressurized to the atomization pressure (such as 0.5MPa) by the booster pump, and the pilot solenoid valve must be selected, which has the advantages of small power, small size, and low cost. However, in practical applications, when the installation height of each nozzle is different, when the spraying stops and the booster pump stops working, the liquid pressure at each solenoid valve and booster pump is very small, because the pilot solenoid valve is a one-way Shut-off characteristics and lower than the minimum working pressure of the pilot solenoid valve, the pressure difference between the upper and lower sides of the main valve core in the solenoid valve is less than the stable shut-off pressure, and the spring force of the valve stem spring is small, making the sealing of the main valve core Falling, the liquid leaks through the main valve port of some solenoid valves, causing other pipelines to flow back due to liquid, so that the liquid flows out from the pipeline with a low liquid level, and air enters the pipeline. After the booster pump works, the air in the pipeline needs to be discharged first. It can be sprayed normally after the spraying, which affects the timeliness of spraying and atomization effect. In addition, under low pressure, the sealing performance of the pump chamber diaphragm of the booster pump is reduced, and the liquid with high liquid level can also flow back through the pump chamber, which affects the timeliness of spraying. and fog effects.

When tap water is used as the water source, the booster pump can be replaced by switching the water inlet solenoid valve. In the liquid distribution system where the inventor builds multiple solenoid valves in parallel, a water inlet solenoid valve is used to connect multiple solenoid valves. Turn on the water inlet solenoid valve and one of the multiple solenoid valves to realize that one water inlet solenoid valve drives N times the number of nozzles of one road, which can reduce the water inlet flow; however, in practical applications, due to the installation of each nozzle When the height is different, when the spraying stops and the water inlet solenoid valve is closed, the liquid pressure at each solenoid valve is very small. Because the pilot solenoid valve has a one-way shut-off characteristic and is lower than the minimum working pressure of the pilot solenoid valve, the solenoid valve The pressure difference between the upper and lower sides of the main valve core in the valve is less than the stable shut-off pressure, and the spring force of the valve stem spring is small, so that the sealing performance of the main valve core is reduced, and the liquid leaks through the main valve port of some solenoid valves, causing other pipelines to be damaged by liquid. Backflow makes the liquid flow back from the pipeline with low liquid level, so that air enters the pipeline. After the water inlet solenoid valve is opened, the air in the pipeline must be discharged before normal spraying, thus affecting the timeliness of spraying and atomization effect.

In addition, when the solenoid valve and the booster pump have been used for a period of time, micro-leakage may occur due to wear and tear, causing the liquid to flow out from the pipeline with a low liquid level, allowing air to enter the pipeline. When spraying, the air in the pipeline must be discharged first. Only then can it be sprayed normally, thus affecting the timeliness and atomization effect of the spray.

Contents of the invention

Embodiments of the present invention provide a liquid distribution system, control method, and device, which are used to solve the problems of high cost, large volume, and high energy consumption in a system where a liquid pressure unit only outputs one path, and problems such as solenoid valves or liquid pressure units under low pressure. Poor sealing of the booster pump chamber causes problems such as liquid leakage and air entering the pipeline; after increasing the pressure in the shunt pipeline connected to the solenoid valve, it may also be caused by the solenoid valve and the booster pump chamber itself in the liquid pressure unit. Micro-leakage occurs due to defects or wear, which causes the pressure to gradually drop to low pressure and cause liquid leakage; in order to solve the above problems, the present invention uses multiple solenoid valves in parallel to form a liquid distribution system to realize multiple uses of one liquid pressure unit, and realize multiple different channels. It is used for liquid supply, and increases the sealing performance of each solenoid valve or booster pump in the liquid pressure unit to prevent leakage and ensure the stability and timeliness of liquid output in each branch pipeline.

According to a first aspect of an embodiment of the present invention, a liquid distribution system is provided, comprising:

Liquid pressure units, solenoid valves, control components, split pipelines;

The liquid pressure unit is used to output liquid with pressure; there are at least two solenoid valves, and the input ends of a plurality of solenoid valves are connected with the shunt pipeline for switching corresponding pipelines; The control assembly is connected with the liquid pressure unit and the solenoid valve;

The control component is used to control the electromagnetic valve and the liquid pressure unit, and output the liquid to the corresponding branch pipeline by controlling the switch of each electromagnetic valve; according to the first preset pressure value and the first set physical parameter value The relationship between the physical parameter values corresponding to the first set physical parameter value is acquired; when the acquired physical parameter value does not reach the first set physical parameter value, the liquid pressure unit is turned on and the set physical parameter value is turned off. The solenoid valve; when the obtained physical parameter value reaches the first set physical parameter value, the liquid pressure unit is closed, so that the pressure value of the shunt pipeline reaches the first preset pressure value.

Optionally, the control assembly includes a controller and a pressure sensor, the pressure sensor is located on the split pipeline between the liquid pressure unit and the electromagnetic valve, and the first set physical parameter value is pressure;

The pressure sensor is used to detect the pressure value in the shunt pipeline;

The controller is configured to open the liquid pressure unit and close the solenoid valve when the pressure value detected by the pressure sensor is less than a first set pressure value; and when the pressure value reaches the first set pressure value, When the pressure value is fixed, the liquid pressure unit is closed.

Optionally, the control assembly includes a controller and a current sensor, the current sensor is connected to the liquid pressure unit, and the set physical parameter is a current value;

The current sensor is used to detect the current value of the liquid pressure unit;

The controller is configured to obtain a current value of the liquid pressure unit when the liquid pressure unit is turned on; and to turn off the liquid pressure unit when the current value reaches a first set current value.

Optionally, the control component includes a controller and a timer, and the set physical parameter is time;

The timer is used to monitor the working time of the liquid pressure unit;

The controller is configured to acquire the working time of the liquid pressure unit when the liquid pressure unit is turned on, and shut down the liquid pressure unit when the working time reaches a first set working time.

Optionally, the low-flow branch pipeline in the distribution pipeline has a downward pipeline, and the high-flow branch pipeline is located at the end of the distribution pipeline.

Optionally, one of the solenoid valves is a return solenoid valve, and the return solenoid valve is connected to the end of the diversion pipeline for quickly discharging liquid, gas or gas-liquid mixture in the pipeline;

The control component is configured to open the return solenoid valve and the liquid pressure unit when the obtained physical parameter value does not reach the first set physical parameter value after the liquid pressure unit is turned on for a preset time. pressure unit.

Optionally, the control component is further configured to obtain the correlation with the set pressure value according to the correlation between the second preset pressure value and the second set physical parameter value when the return solenoid valve and the liquid pressure unit are opened. The physical parameter value corresponding to the second set physical parameter value; when the obtained physical parameter value reaches the second set physical parameter value, close the liquid pressure unit and the return solenoid valve.

Optionally, the controller is further configured to turn on the liquid pressure unit at preset intervals.

Optionally, the control assembly is further configured to close the solenoid valve before closing the hydraulic pressure unit when at least one of the hydraulic pressure unit and the electromagnetic valve is turned on, and when the control assembly When the obtained physical parameter value reaches the first set physical parameter value, the liquid pressure unit is turned off.

Optionally, the liquid pressure unit includes a booster pump or a water inlet solenoid valve.

According to a second aspect of an embodiment of the present invention, a method for controlling a liquid distribution system is provided, including:

Determine the relationship between the first preset pressure value of the liquid pressure in the shunt pipeline and the first set physical parameter value;

acquiring a physical parameter value corresponding to the first set physical parameter value;

When the acquired physical parameter value does not reach the first set physical parameter value, control to open the liquid pressure unit and close the solenoid valve; when the acquired physical parameter value reaches the first set physical parameter value, control closing the liquid pressure unit, so that the pressure value in the distribution pipeline reaches the first preset pressure value.

Optionally, the first set physical parameter value is pressure;

determining the correlation between the first preset pressure value and the first set pressure value;

Acquiring the pressure value in the shunt pipeline detected by the pressure sensor;

When the obtained pressure value is less than the first set pressure value, control to open the liquid pressure unit and close the solenoid valve; and when the obtained pressure value reaches the first set pressure value, control Close the liquid pressure unit.

Optionally, the first set physical parameter is a current value;

determining the correlation between the first preset pressure value and the first preset current value;

Obtain the current value of the liquid pressure unit detected by the current sensor;

When the obtained current value reaches the first set current value, the control turns off the hydraulic pressure unit.

Optionally, the first set physical parameter is time;

determining the correlation between the first preset pressure value and the first set working time;

Obtain the working time of the liquid pressure unit monitored by the timer;

When the acquired working time reaches the first set working time, the control turns off the hydraulic pressure unit.

Optionally, the method also includes:

When the control turns on the liquid pressure unit for a preset time;

When the obtained physical parameter value does not reach the first set physical parameter value, control to open the return solenoid valve and the liquid pressure unit.

Optionally, the method also includes:

When controlling to open the return solenoid valve and the liquid pressure unit, determine the correlation between the second preset pressure value and the second set physical parameter value of the liquid pressure in the shunt pipeline;

acquiring a physical parameter value corresponding to the second set physical parameter value;

When the obtained physical parameter value reaches the second set physical parameter value, the control closes the liquid pressure unit and the return solenoid valve.

Optionally, the method also includes:

The hydraulic pressure unit is controlled to be turned on every preset interval.

Optionally, the method also includes:

When controlling to open at least one of the liquid pressure unit and the solenoid valve, before controlling to close the liquid pressure unit, first control to close the solenoid valve;

When the acquired physical parameter value reaches the first set physical parameter value, the control turns off the hydraulic pressure unit.

According to a third aspect of the embodiments of the present invention, a liquid distribution system control device is provided, including:

The first determination module is used to determine the relationship between the first preset pressure value of the liquid pressure in the distribution line and the first set physical parameter value;

A first acquisition module, configured to acquire a physical parameter value corresponding to the first set physical parameter value;

The first control module is used to control the opening of the liquid pressure unit and close the solenoid valve when the obtained physical parameter value does not reach the first set physical parameter value; when the obtained physical parameter value reaches the first set physical parameter value A physical parameter value is set, and the liquid pressure unit is controlled to be closed, so that the pressure value in the distribution pipeline reaches the first preset pressure value.

Optionally, the first set physical parameter value is pressure;

The first determination module is specifically configured to determine the correlation between the first preset pressure value and the first set pressure value;

The first acquiring module is specifically configured to acquire the pressure value in the shunt pipeline detected by the pressure sensor;

The first control module is specifically configured to, when the obtained pressure value is less than the first set pressure value, control to open the liquid pressure unit and close the solenoid valve; and when the obtained pressure value reaches the set pressure value When the first set pressure value is reached, the control closes the liquid pressure unit.

Optionally, the first set physical parameter is a current value;

The first determining module is specifically configured to determine the correlation between the first preset pressure value and the first set current value;

The first acquiring module is specifically configured to acquire the current value of the liquid pressure unit detected by the current sensor;

The first control module is specifically configured to, when the acquired current value reaches the first set current value, control to turn off the hydraulic pressure unit.

Optionally, the first set physical parameter is time;

The first determination module is specifically configured to determine the correlation between the first preset pressure value and the first set working time;

The first acquiring module is specifically used to acquire the working time of the liquid pressure unit monitored by the timer;

The first control module is specifically configured to, when the acquired working time reaches the first set working time, control to shut down the hydraulic pressure unit.

Optionally, the first control module is specifically configured to, when the obtained physical parameter value does not reach the first set physical parameter value after the liquid pressure unit is turned on for a preset time, control to open the backflow Solenoid valve and the liquid pressure unit.

Optionally, the device also includes:

The second determination module is used to determine the correlation between the second preset pressure value and the second set physical parameter value of the liquid pressure in the shunt pipeline when the return solenoid valve and the liquid pressure unit are controlled to be opened. ;

A second acquisition module, configured to acquire a physical parameter value corresponding to the second set physical parameter value;

The second control module is configured to control and close the liquid pressure unit and the return solenoid valve when the obtained physical parameter value reaches the second set physical parameter value.

Optionally, the first control module is specifically configured to control the opening of the liquid pressure unit at preset intervals.

Optionally, the first control module is specifically configured to, when controlling to open at least one of the liquid pressure unit and the solenoid valve, first control to close the solenoid valve before controlling to close the liquid pressure unit. valve;

When the acquired physical parameter value reaches the first set physical parameter value, the control turns off the hydraulic pressure unit.

Embodiments of the present invention can include the following beneficial effects through the above technical solutions:

A liquid distribution system is composed of multiple solenoid valves in parallel. By controlling the opening of one or more solenoid valves, the liquid distribution of different branch pipelines can be realized. Through the distribution method, the liquid flow, booster pump power, and water inlet pipe diameter can be increased. In the case of the number of supporting equipment, realize multiple purposes of one liquid pressure unit, and realize multi-channel liquid supply for different purposes; by monitoring the pressure in the pipeline and pressurizing the shunt pipeline through the liquid pressure unit, the pressure can be used The main valve core of the solenoid valve and the diaphragm of the booster pump in the liquid pressure unit are pressed together more tightly, thereby increasing the sealing performance of each solenoid valve and the booster pump in the liquid pressure unit, preventing leakage, and ensuring stable liquid output in each branch pipeline and timeliness; media such as air or gas-liquid mixture in the pipeline can be quickly discharged through the return solenoid valve at the end of the diversion pipeline.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art, and together with the specification, they will be used to explain the technical solutions of the present disclosure. Principle, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

FIG. 1 is a first schematic diagram of a liquid distribution system provided by an embodiment of the present invention.

Fig. 2 is a second schematic diagram of a liquid distribution system provided by an embodiment of the present invention.

FIG. 3 is a third schematic diagram of a liquid distribution system provided by an embodiment of the present invention.

FIG. 4 is a fourth schematic diagram of a liquid distribution system provided by an embodiment of the present invention.

FIG. 5 is a fifth schematic diagram of a liquid distribution system provided by an embodiment of the present invention.

FIG. 6 is a sixth schematic diagram of a liquid distribution system provided by an embodiment of the present invention.

Fig. 7 is a first schematic diagram of a liquid distribution system control method provided by an embodiment of the present invention.

FIG. 8 is a second schematic diagram of a liquid distribution system control method provided by an embodiment of the present invention.

FIG. 9 is a third schematic diagram of a liquid distribution system control method provided by an embodiment of the present invention.

FIG. 10 is a fourth schematic diagram of a liquid distribution system control method provided by an embodiment of the present invention.

FIG. 11 is a fifth schematic diagram of a liquid distribution system control method provided by an embodiment of the present invention.

Fig. 12 is a sixth schematic diagram of a liquid distribution system control method provided by an embodiment of the present invention.

Fig. 13 is a first schematic diagram of a liquid distribution system control device provided by an embodiment of the present invention.

Fig. 14 is a second schematic diagram of a liquid distribution system control device provided by an embodiment of the present invention.

Detailed ways

Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements, and the following exemplary The implementations described in the examples do not represent all implementations consistent with the present disclosure, but rather, they are only examples of apparatus and methods consistent with some aspects of the disclosure as detailed in the appended claims example.

The specific implementation manners of a liquid distribution system, control method and device provided in the embodiments of the present invention will be described below with reference to the drawings in the description.

In the technical solution provided by the embodiments of the present invention, multiple solenoid valves are arranged in parallel to form a liquid distribution system to realize multiple uses of one liquid pressure unit, and increase the sealing performance of each solenoid valve or booster pump in the liquid pressure unit to prevent leakage.

A liquid distribution system provided by an embodiment of the present invention, as shown in FIG. 1 , includes a liquid pressure unit 11, a solenoid valve 12, a control assembly 13, a liquid supply pipeline 14, and a distribution pipeline 15;

The liquid pressure unit 11 is used to output liquid with pressure; there are at least two solenoid valves 12, and the input ends of a plurality of solenoid valves 12 are connected through a shunt pipeline 15 for switching corresponding pipelines; the control assembly 13 Connected with the liquid pressure unit 11 and the solenoid valve 12;

Wherein, the liquid pressure unit 11 can be a booster pump, and the booster pump can suck the liquid in the liquid storage tank through the liquid supply pipeline 14, and can also connect the liquid supply pipeline to a liquid source with pressure (such as a tap water pipe network, whole house water purification pipeline, pressure tank, etc.), pressurized by a booster pump and transported to the liquid distribution system; in addition, the liquid pressure unit 11 can also be a liquid inlet solenoid valve connected to a liquid supply line with a pressure liquid source ( Such as tap water pipe network, whole house water purification pipeline, pressure barrel, etc.), the liquid is delivered to the liquid distribution system through the liquid inlet solenoid valve.

The solenoid valve 12 is used to selectively open the corresponding pipeline to realize the corresponding function. For example, when the pipeline corresponding to the opened solenoid valve 12 is used for spraying, the liquid delivered by the liquid pressure unit 11 enters the spray head through the opened solenoid valve , the liquid splitting system realizes the spraying function; when the pipeline corresponding to the opened electromagnetic valve 12 is used for spraying, the liquid delivered by the liquid pressure unit 11 enters the spraying head through the opened electromagnetic valve, and the liquid splitting system realizes the spraying function; when The pipeline corresponding to the opened solenoid valve 12 is used for discharge, then the liquid delivered by the liquid pressure unit 11 enters the liquid storage barrel through the open solenoid valve, and is used to discharge the air or gas-liquid mixture in the pipeline into the liquid storage barrel, and the liquid The shunt system implements the emptying function to prevent the compressibility of the air from affecting the liquid pressure; therefore, different functions can be realized by opening the solenoid valves corresponding to different functional pipelines, making the whole system diverse and scalable.

For example, in a liquid splitting spray system composed of multiple solenoid valves in parallel, the liquid can be pressurized to the atomization pressure (such as 0.5MPa-20MPa) through a booster pump, and the pilot solenoid valve is generally used. Explanatory, the pilot solenoid valve It is the most commonly used and common type of all solenoid valves. It is generally used in pipelines with large diameters and high pressures. This type of valve consumes less power, generates less heat, and the coil is not easy to burn out. It can be powered for a long time, and it can save energy. It can achieve higher and more precise control effect, and can control the switching speed of the valve port. Within the operating pressure range, the greater the liquid pressure, the tighter the seal, and it can be installed arbitrarily; When the installation height is different, when the spraying stops and the booster pump stops working, the liquid pressure at the solenoid valves and the booster pump is very small, because the pilot solenoid valve has a one-way shut-off characteristic and is lower than the pilot solenoid valve. Under the minimum working pressure, the pressure difference between the upper and lower sides of the main valve core in the solenoid valve is less than the stable shut-off pressure, and the spring force of the valve stem spring is small, so that the sealing performance of the main valve core is reduced, and the liquid leaks through part of the main valve port of the solenoid valve. The other pipelines are caused by liquid backflow, which causes the liquid to flow back from the low-level pipeline, causing air to enter the pipeline. After the booster pump works, the air in the pipeline must be discharged before normal spraying, thus affecting the timeliness and quality of spraying. In addition, under low pressure, the diaphragm seal of the pump chamber of the booster pump is reduced, and the liquid with a high liquid level can also flow back through the pump chamber, which affects the timeliness of spraying and atomization effect.

The control assembly 13 is used to control the switch of each solenoid valve 12 to realize the corresponding function of opening the corresponding branch pipeline; by opening one of the solenoid valves 12 in time, the working parameters of the liquid pressure unit 11 only need to correspond to multiple The path with the largest flow or pressure in each branch pipeline can greatly reduce the performance parameters of the liquid pressure unit 11 in the entire system and the corresponding pipeline configuration (such as the inlet pipeline can choose a small model specification); and for the system When in the standby state, it is necessary to maintain a certain liquid pressure in the shunt pipeline 15, so that the sealing performance of the solenoid valve 12 and the liquid pressure unit 11 is better, according to the difference between the first preset pressure value and the first set physical parameter value The associated relationship, obtain the physical parameter value corresponding to the first set physical parameter value; when the obtained physical parameter value does not reach the first set physical parameter value, open the liquid pressure unit 11 and close the solenoid valve 12; When the physical parameter value reaches the first set physical parameter value, the liquid pressure unit 11 is closed, so that the pressure value in the split pipeline 15 at the input end of the solenoid valve 12 reaches the first preset pressure value.

Explanatory, in actual application, the first preset pressure value is to determine the appropriate pressure value according to the selected solenoid valve and the model parameters of the liquid pressure unit, for example, the pilot solenoid valve with a medium pressure range of 0.02-0.8MPa, then the first The range of a preset pressure value can be 0.1-0.6MPa, such as when the first preset pressure value is set to 0.1MPa, then when the pressure value in the shunt pipeline 15 is lower than 0.1MPa, the liquid pressure unit is opened to feed the shunt pipe The liquid in the circuit is pressurized, and when the pressure in the shunt pipe 15 is greater than 0.1 MPa, the liquid pressure unit is closed to achieve a stable sealing effect. Of course, this is only an example for illustration, rather than the only limitation of the present invention.

Then the relationship between the first preset pressure value and the first set physical value can be through the pressure value detected by the pressure sensor; it can also be through the switch signal of the pressure switch (when the pressure switch reaches the first preset pressure value, the output switch or off signal); it can also pass the current value or power value of the booster pump in the liquid pressure unit. There will also be a corresponding working current. For example, when the maximum working pressure of the booster pump is 0.8MPa, the maximum working current is 2A, the first preset pressure value range can be 0.5-0.7MPa, and the corresponding current value is 1.6-1.9 A, then when it is detected that the current value of the booster pump reaches 1.6A or more, the booster pump can be turned off; it can also be reached by opening the liquid pressure unit for a certain period of time, for example, when the maximum working pressure of the booster pump is 2MPa, the solenoid valve The maximum medium pressure is 3MPa. When the solenoid valves are closed, the time to turn on the booster pump reaches 0.1-2 seconds. Due to the incompressibility of the liquid, the maximum working pressure will be reached soon; The sole limitation of the invention.

Optionally, when the control assembly includes a controller 21 and a pressure sensor 22, and the first set physical parameter value is pressure, the liquid distribution system provided by the embodiment of the present invention is shown in FIG. In the split pipeline 15 between the unit 11 and the solenoid valve 12;

The pressure sensor 22 is used to measure the pressure value in the shunt pipeline 15 at the input end of the solenoid valve 12;

The controller 21 is configured to open the liquid pressure unit 11 and close the solenoid valve 12 when the pressure value measured by the pressure sensor 22 is less than the first set pressure value, and when the pressure value When the first set pressure value is reached, the liquid pressure unit 11 is closed;

Of course, the pressure sensor 22 can also be a pressure switch, and the pressure switch is used to give the pressure value in advance corresponding to the first preset pressure value. When the first preset pressure value is reached, the pressure switch opens or closes the switch and outputs a switch signal. Therefore, the controller can be used to judge whether the first preset pressure value is reached according to the switch signal.

Optionally, when the control component includes a controller 31 and a current sensor 32, and the first set physical parameter is a current value, the liquid distribution system provided by the embodiment of the present invention is shown in Figure 3, and the liquid pressure unit is an increasing Pressure pump 112, current sensor 32 is connected with booster pump 112;

The current sensor 32 is used to detect the current value of the booster pump 112;

The controller 31 is configured to obtain the current value of the booster pump 112 when the booster pump 112 is turned on, and turn off the booster pump 112 when the current value reaches the first set current value. Pressure pump 112;

For example, when the spraying is over, close all the solenoid valves 12 and turn on the booster pump 112 to increase the liquid pressure in the shunt pipeline 15. When the set current value is reached, the liquid pressure has reached the corresponding first preset value. Set the pressure value and turn off the booster pump 112.

Of course, the current sensor can be a separate accessory, or can be integrated in the circuit of the controller.

Optionally, when the control component includes a controller 41 and a timer 42, and the first set physical parameter is time, the liquid distribution system provided by the embodiment of the present invention is shown in FIG. 4 ,

The timer 42 is used to monitor the working time of the liquid pressure unit 11;

The controller 41 is configured to obtain the working time of the hydraulic pressure unit 11 when the hydraulic pressure unit 11 is turned on, and to turn off the hydraulic pressure unit 11 when the working time reaches the first set working time. Unit 11.

In summary, by time-sharingly controlling the switches of the solenoid valves 12, the corresponding functions corresponding to the corresponding branch pipelines can be opened; through the correlation between the first preset pressure value and the first set physical parameter value, Turn on the liquid pressure unit and close the solenoid valve; make the obtained physical parameter value reach the first set physical parameter value, so that the pressure value in the shunt pipeline reaches the first preset pressure value, ensuring The liquid distribution system has good sealing.

Optionally, in practical applications, when the liquid distribution system is just in use, or due to lack of liquid in the liquid storage tank, air enters the distribution pipeline 15, and because air is compressible, it will affect the distribution pipeline. 15, until the first preset pressure value cannot be reached in the shunt line 15; the liquid shunt system provided by the embodiment of the present invention is shown in Figure 5, and the low flow branch line in the shunt line 15 There is a pipeline with a downward flow direction, and the high-flow branch pipeline is located at the end of the split pipeline 15; explanatory, wherein the low-flow branch pipeline, such as a branch pipeline connected to a spray nozzle, needs Only a certain pressure can spray water mist, so the liquid pressure in the spray branch pipeline is high, so the flow rate is small. If the air bubbles enter the spray branch pipeline, it will affect the pressure of the liquid. The effect is not good, etc., so when the liquid with air bubbles flows in the distribution pipeline 15, because the bubbles have upward buoyancy, the inlet of the low-flow branch pipeline is arranged at the bottom of the distribution pipeline 15, And have a section of downward pipeline, the downward pipeline can be vertically downward or obliquely downward, so it can avoid the air bubbles entering the low flow branch pipeline under the effect of buoyancy; the high flow branch The pipeline has a large flow rate, low liquid pressure, and air bubbles are easier to pass through and be discharged, so it is arranged at the end of the branch pipeline 15 to discharge all the media in the main pipeline in the branch pipeline 15.

As shown in Figure 6, one of the solenoid valves is a return solenoid valve 126, and the return solenoid valve 126 is arranged at the end of the diversion pipeline 15, and is used to quickly discharge media such as liquid, gas or gas-liquid mixture in the pipeline, filling the split line with bubble-free liquid;

The control component 13 is configured to open the return solenoid valve 126 and the return solenoid valve 126 when the obtained physical parameter value does not reach the first set physical parameter value after the booster pump 122 is turned on for a preset time. The booster pump 122 discharges the liquid, gas or gas-liquid mixture in the distribution pipeline 15, so that the bubble-free liquid fills the distribution pipeline, ensuring that the distribution pipeline 15 can reach the first preset pressure value.

Optionally, the control assembly 13 is further configured to, when the return solenoid valve 126 and the booster pump 122 are opened, according to the correlation between the second preset pressure value and the second set physical parameter value, Obtain the physical parameter value corresponding to the second set physical parameter value; when the acquired physical parameter value reaches the second set physical parameter value, close the booster pump 122 and the return solenoid valve 126, specifically For the implementation method, reference may be made to the foregoing content, and details are not repeated here.

Optionally, in practical applications, when the first preset pressure value correlates with the time of the liquid pressure unit or the current value of the booster pump in the liquid pressure unit, if there is no pressure sensor or the pressure sensor is damaged, it is impossible to directly Detecting the pressure value, when the liquid distribution system is in the standby state, the system cannot judge whether the pressure value in the distribution pipeline is lower than the first preset pressure value, so the controller is also used to turn on the liquid pressure unit at a preset interval ;For example, turn on the booster pump at intervals of 20 minutes to detect whether its current value reaches the current value corresponding to the first preset pressure value, or turn on the liquid pressure unit for 1 second at intervals of 20 minutes to ensure that the liquid distribution system has a good seal sex.

Optionally, the control assembly 13 is further configured to close the solenoid valve 12 before stopping the hydraulic pressure unit 11 when at least one of the hydraulic pressure unit 11 and the solenoid valve 12 is turned on. , when the physical parameter value acquired by the control component 13 reaches the first set physical parameter value, the liquid pressure unit 11 is closed; for example, one path in the liquid distribution system is used for spraying, and when the spraying is closed, it can be closed at the same time Liquid pressure unit and solenoid valve, and then open the liquid pressure unit to pressurize the diversion pipeline; you can also close the solenoid valve first, that is, turn off the spray, and then close the liquid pressure unit when the obtained pressure value reaches the first preset pressure value .

To sum up, a liquid distribution system is composed of multiple solenoid valves in parallel, and by controlling the opening of one or more solenoid valves, the liquid distribution of different branch pipelines can be realized. Through the distribution method, the liquid flow and booster pump power can be increased. , the diameter of the water inlet pipe, and the number of supporting equipment, realize the multiple purposes of one liquid pressure unit, and realize the supply of multiple liquids for different purposes; Pressure, through the pressure, the main valve core of the solenoid valve and the diaphragm of the booster pump in the liquid pressure unit are pressed together more tightly, thereby increasing the sealing performance of each solenoid valve and the booster pump in the liquid pressure unit, preventing leakage, and ensuring that each branch Pipeline liquid output stability and timeliness; media such as air or gas-liquid mixture in the pipeline can be quickly discharged through the return solenoid valve at the end of the diversion pipeline.

The liquid distribution system control method provided by the embodiment of the present invention, as shown in FIG. 7 , includes:

S101. Determine the relationship between the first preset pressure value of the liquid pressure in the shunt line and the first set physical parameter value;

S102. Obtain a physical parameter value corresponding to the first set physical parameter value;

S103. When the acquired physical parameter value does not reach the first set physical parameter value, control to open the liquid pressure unit and close the solenoid valve; when the acquired physical parameter value reaches the first set physical parameter value , controlling to close the liquid pressure unit, so that the pressure value in the distribution pipeline reaches the first preset pressure value.

Optionally, when the value of the first set physical parameter is pressure, the liquid distribution system control method provided by the embodiment of the present invention is shown in Figure 8, wherein S101 specifically includes:

S201. Determine the correlation between the first preset pressure value and the first set pressure value;

S102 specifically includes:

S202. Obtain the pressure value in the shunt pipeline detected by the pressure sensor;

S103 specifically includes:

S203. When the acquired pressure value is less than the first set pressure value, control to open the liquid pressure unit and close the solenoid valve; and when the acquired pressure value reaches the first set pressure value , to control closing of the liquid pressure unit.

Optionally, when the first set physical parameter is a current value, the liquid distribution system control method provided by the embodiment of the present invention is shown in Figure 9, wherein S101 specifically includes:

S301. Determine the relationship between the first preset pressure value and the first set current value;

S102 specifically includes:

S302. Obtain the current value of the liquid pressure unit detected by the current sensor;

S103 specifically includes:

S303. When the acquired current value reaches the first set current value, control to turn off the liquid pressure unit.

Optionally, when the first set physical parameter is time, the liquid distribution system control method provided by the embodiment of the present invention is shown in Figure 10, wherein S101 specifically includes:

S401. Determine the correlation between the first preset pressure value and the first set working time;

S102 specifically includes:

S402. Obtain the working time of the liquid pressure unit monitored by the timer;

S103 specifically includes:

S403. When the acquired working time reaches the first set working time, control to shut down the liquid pressure unit.

Optionally, the liquid distribution system control method provided by the embodiment of the present invention is shown in Figure 11, and further includes:

S501. When controlling to open the return solenoid valve and the liquid pressure unit, determine the correlation between the second preset pressure value of the liquid pressure in the distribution line and the second set physical parameter value;

S502. Obtain a physical parameter value corresponding to the second set physical parameter value;

S503. When the obtained physical parameter value reaches the second set physical parameter value, control to close the liquid pressure unit and the return solenoid valve.

Optionally, the liquid distribution system control method provided by the embodiment of the present invention is shown in Figure 12, and further includes:

S601. After controlling to open the liquid pressure unit for a preset time;

S602. When the obtained physical parameter value does not reach the first set physical parameter value, control to open the return solenoid valve and the liquid pressure unit.

Optionally, the liquid distribution system control method provided in the embodiment of the present invention further includes:

The hydraulic pressure unit is controlled to be turned on every preset interval.

Optionally, the liquid distribution system control method provided in the embodiment of the present invention further includes:

When controlling to open at least one of the liquid pressure unit and the solenoid valve, before controlling to close the liquid pressure unit, first control to close the solenoid valve;

When the obtained physical parameter value reaches the first set physical parameter value, the control turns off the hydraulic pressure unit.

To sum up, by monitoring the pressure in the pipeline and pressurizing the shunt pipeline through the liquid pressure unit, the main valve core of the solenoid valve and the diaphragm of the booster pump in the liquid pressure unit are pressed more tightly through pressure, Thereby increasing the sealing performance of each solenoid valve and the booster pump in the liquid pressure unit, preventing leakage, and ensuring the stability and timeliness of the liquid output of each branch pipeline; through the return solenoid valve at the end of the diversion pipeline, the air in the pipeline can be quickly discharged or Gas-liquid mixture and other media.

Based on the same inventive concept, an embodiment of the present invention also provides a liquid distribution system control device. Since the principle of the problem solved by the device is similar to the aforementioned liquid distribution system control method, the implementation of the device can refer to the implementation of the aforementioned method, and repeat I won't repeat them here.

The liquid distribution system control device provided by the embodiment of the present invention, as shown in FIG. 13 , includes:

The first determination module 71 is configured to determine the relationship between the first preset pressure value of the liquid pressure in the distribution line and the first set physical parameter value;

A first obtaining module 72, configured to obtain a physical parameter value corresponding to the first set physical parameter value;

The first control module 73 is configured to control the opening of the liquid pressure unit and close the solenoid valve when the obtained physical parameter value does not reach the first set physical parameter value; when the obtained physical parameter value reaches the first set physical parameter value Once the physical parameter value is set, the liquid pressure unit is controlled to be closed, so that the pressure value in the distribution pipeline reaches the first preset pressure value.

Optionally, the first set physical parameter value is pressure, and the first determination module 71 is specifically configured to determine the correlation between the first preset pressure value and the first set pressure value;

The first acquisition module 72 is specifically configured to acquire the pressure value in the shunt pipeline detected by the pressure sensor;

The first control module 73 is specifically configured to, when the obtained pressure value is less than the first set pressure value, control to open the liquid pressure unit and close the solenoid valve; and when the obtained pressure value reaches When the first set pressure value is reached, the control closes the liquid pressure unit.

Optionally, the first set physical parameter is a current value, and the first determination module 71 is specifically configured to determine the correlation between the first preset pressure value and the first set current value;

The first acquiring module 72 is specifically configured to acquire the current value of the liquid pressure unit detected by the current sensor;

The first control module 73 is specifically configured to, when the acquired current value reaches the first set current value, control to shut down the hydraulic pressure unit.

Optionally, the first set physical parameter is time, and the first determination module 71 is specifically configured to determine the correlation between the first preset pressure value and the first set working time;

The first acquiring module 72 is specifically configured to acquire the working time of the liquid pressure unit monitored by the timer;

The first control module 73 is specifically configured to, when the acquired working time reaches the first set working time, control to shut down the hydraulic pressure unit.

Optionally, the first control module 73 is specifically configured to, when the liquid pressure unit is turned on for a preset time, when the obtained physical parameter value does not reach the first set physical parameter value, control to turn on return solenoid valve and the liquid pressure unit.

Optionally, the liquid distribution system control device provided by the embodiment of the present invention, as shown in FIG. 14 , further includes:

The second determination module 81 is configured to determine the correlation between the second preset pressure value of the liquid pressure in the shunt line and the second set physical parameter value when the return solenoid valve and the liquid pressure unit are controlled to be opened. relation;

A second obtaining module 82, configured to obtain a physical parameter value corresponding to the second set physical parameter value;

The second control module 83 is configured to control to close the liquid pressure unit and the return solenoid valve when the obtained physical parameter value reaches the second set physical parameter value.

Optionally, the first control module 73 is specifically configured to control to turn on the liquid pressure unit at a preset interval.

Optionally, the first control module 73 is specifically configured to, when controlling to open at least one of the liquid pressure unit and the electromagnetic valve, before controlling to close the liquid pressure unit, first control to close the The electromagnetic valve;

When the acquired physical parameter value reaches the first set physical parameter value, the control turns off the hydraulic pressure unit.

It can be understood that, if the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a corresponding computer-readable storage medium. Based on this understanding, the present application implements All or part of the processes in the methods of the above corresponding embodiments can also be completed by instructing related hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can be executed by a processor. , the steps in each of the foregoing method embodiments may be implemented. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form. The computer readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory) , random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, computer-readable media Excludes electrical carrier signals and telecommunication signals.

Those skilled in the art can understand that the drawing is only a schematic diagram of a preferred embodiment, and the modules or processes in the drawing are not necessarily necessary for implementing the present invention.

Those skilled in the art can understand that the modules in the device in the embodiment can be distributed in the device in the embodiment according to the description in the embodiment, and can also be changed and located in one or more devices different from the device in the embodiment. The modules in the above embodiments can be combined into one module, and can also be further divided into multiple sub-modules.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (26)

1. A fluid diversion system, comprising: the device comprises a liquid pressure unit, an electromagnetic valve, a control assembly and a shunt pipeline;

the liquid pressure unit is used for outputting liquid with pressure; the number of the electromagnetic valves is at least two, and the input ends of the electromagnetic valves are communicated with the flow dividing pipelines and used for switching on and off the corresponding pipelines; the control assembly is connected with the liquid pressure unit and the electromagnetic valve;

the control assembly is used for controlling the electromagnetic valves and the liquid pressure unit and outputting liquid to the corresponding branch pipeline by controlling the switch of each electromagnetic valve; acquiring a physical parameter value corresponding to a first set physical parameter value according to the incidence relation between the first preset pressure value and the first set physical parameter value; when the obtained physical parameter value does not reach the first set physical parameter value, opening the liquid pressure unit and closing the electromagnetic valve; and when the acquired physical parameter value reaches the first set physical parameter value, closing the liquid pressure unit, so that the pressure value of the shunt pipeline reaches the first preset pressure value.

2. The system of claim 1, wherein the control assembly includes a controller and a pressure sensor located on a shunt line between the fluid pressure unit and the solenoid valve, the first set physical parameter value being pressure;

the pressure sensor is used for detecting the pressure value in the shunt pipeline;

the controller is used for opening the liquid pressure unit and closing the electromagnetic valve when the pressure value detected by the pressure sensor is smaller than a first set pressure value; and closing the liquid pressure unit when the pressure value reaches the first set pressure value.

3. The system of claim 1, wherein the control assembly includes a controller and a current sensor, the current sensor is connected to the hydraulic pressure unit, and the set physical parameter is a current value;

the current sensor is used for detecting the current value of the liquid pressure unit;

the controller is used for acquiring the current value of the liquid pressure unit when the liquid pressure unit is started; and closing the liquid pressure unit when the current value reaches a first set current value.

4. The system of claim 1, wherein the control component comprises a controller and a timer, the set physical parameter being time;

the timer is used for monitoring the working time of the liquid pressure unit;

the controller is used for acquiring the working time of the liquid pressure unit when the liquid pressure unit is opened, and closing the liquid pressure unit when the working time reaches a first set working time.

5. The system of claim 1, wherein the low flow branch line in the shunt line has a down line and the high flow branch line is at an end of the shunt line.

6. The system according to any one of claims 1 to 5, wherein one of the solenoid valves is a return solenoid valve connected to the end of the branch line for rapidly discharging the liquid, gas or gas-liquid mixture in the line;

and the control component is used for opening the backflow electromagnetic valve and the liquid pressure unit when the physical parameter value is acquired and does not reach the first set physical parameter value after the liquid pressure unit is opened for a preset time.

7. The system of claim 6, wherein the control component is further configured to obtain a physical parameter value corresponding to a second set physical parameter value according to an association relationship between the second preset pressure value and the second set physical parameter value when the return solenoid valve and the liquid pressure unit are opened; and when the acquired physical parameter value reaches the second set physical parameter value, closing the liquid pressure unit and the return electromagnetic valve.

8. The system of claim 3 or 4, wherein the controller is further configured to turn on the hydraulic pressure unit at predetermined intervals.

9. The system of any one of claims 1 to 8, wherein the control assembly is further configured to close the solenoid valve prior to closing the hydraulic pressure unit when at least one of the hydraulic pressure unit and the solenoid valve is open, and to close the hydraulic pressure unit when the value of the physical parameter obtained by the control assembly reaches a first set physical parameter value.

10. The system of claim 9, wherein the liquid pressure unit comprises a booster pump or a water inlet solenoid valve.

11. A method of controlling a fluid diversion system, comprising:

determining the incidence relation between a first preset pressure value and a first set physical parameter value of the liquid pressure in the shunt pipeline;

acquiring a physical parameter value corresponding to the first set physical parameter value;

when the obtained physical parameter value does not reach the first set physical parameter value, controlling to open the liquid pressure unit and close the electromagnetic valve; and when the acquired physical parameter value reaches the first set physical parameter value, controlling to close the liquid pressure unit, so that the pressure value in the shunt pipeline reaches the first preset pressure value.

12. The method of claim 11, wherein the first set physical parameter value is pressure;

determining the incidence relation between the first preset pressure value and a first set pressure value;

acquiring a pressure value in the shunt pipeline detected by a pressure sensor;

when the obtained pressure value is smaller than the first set pressure value, controlling to open the liquid pressure unit and close the electromagnetic valve; and controlling to close the liquid pressure unit when the acquired pressure value reaches the first set pressure value.

13. The method of claim 11, wherein the first set physical parameter is a current value;

determining the incidence relation between the first preset pressure value and a first set current value;

acquiring a current value of the liquid pressure unit detected by the current sensor;

and when the acquired current value reaches the first set current value, controlling to close the liquid pressure unit.

14. The method of claim 11, wherein the first set physical parameter is time;

determining the incidence relation between the first preset pressure value and first set working time;

acquiring the working time of the liquid pressure unit monitored by the timer;

and controlling to close the liquid pressure unit when the acquired working time reaches the first set working time.

15. The method of claims 11 to 14, further comprising:

after the liquid pressure unit is controlled to be started for a preset time;

and when the acquired physical parameter value does not reach the first set physical parameter value, controlling to open the return electromagnetic valve and the liquid pressure unit.

16. The method of claim 15, wherein the method further comprises:

when the backflow electromagnetic valve and the liquid pressure unit are controlled to be opened, determining the incidence relation between a second preset pressure value and a second set physical parameter value of the liquid pressure in the shunt pipeline;

acquiring a physical parameter value corresponding to the second set physical parameter value;

and when the acquired physical parameter value reaches the second set physical parameter value, controlling to close the liquid pressure unit and the return electromagnetic valve.

17. The method of claim 13 or 14, wherein the method further comprises:

and controlling to open the liquid pressure unit at intervals of preset interval duration.

18. The method of any of claims 11 to 17, further comprising:

when at least one of the liquid pressure unit and the electromagnetic valve is controlled to be opened, the electromagnetic valve is controlled to be closed before the liquid pressure unit is controlled to be closed;

and controlling to close the liquid pressure unit when the acquired physical parameter value reaches a first set physical parameter value.

19. A control device for a fluid diversion system, comprising:

the first determination module is used for determining the incidence relation between a first preset pressure value and a first set physical parameter value of the liquid pressure in the shunt pipeline;

a first obtaining module, configured to obtain a physical parameter value corresponding to the first set physical parameter value;

the first control module is used for controlling the opening of the liquid pressure unit and the closing of the electromagnetic valve when the acquired physical parameter value does not reach the first set physical parameter value; and when the acquired physical parameter value reaches the first set physical parameter value, controlling to close the liquid pressure unit, so that the pressure value in the shunt pipeline reaches the first preset pressure value.

20. The apparatus of claim 19, wherein the first set physical parameter value is pressure;

the first determining module is specifically configured to determine an association relationship between the first preset pressure value and a first set pressure value;

the first acquisition module is specifically used for acquiring a pressure value in the shunt pipeline detected by the pressure sensor;

the first control module is specifically used for controlling to open the liquid pressure unit and close the electromagnetic valve when the obtained pressure value is smaller than the first set pressure value; and controlling to close the liquid pressure unit when the acquired pressure value reaches the first set pressure value.

21. The apparatus of claim 19, wherein the first set physical parameter is a current value;

the first determining module is specifically configured to determine an association relationship between the first preset pressure value and a first set current value;

the first acquisition module is specifically used for acquiring a current value of the liquid pressure unit detected by the current sensor;

the first control module is specifically configured to control to close the liquid pressure unit when the acquired current value reaches the first set current value.

22. The apparatus of claim 19, wherein the first set physical parameter is time;

the first determining module is specifically configured to determine an association relationship between the first preset pressure value and a first set operating time;

the first acquisition module is specifically used for acquiring the working time of the liquid pressure unit monitored by the timer;

the first control module is specifically configured to control to close the liquid pressure unit when the acquired working time reaches the first set working time.

23. The device according to claims 19 to 22, wherein the first control module is specifically configured to control the opening of the return solenoid valve and the hydraulic pressure unit when the value of the physical parameter obtained after the hydraulic pressure unit is opened for a preset time does not reach the first set value of the physical parameter.

24. The apparatus of claim 23, wherein the apparatus further comprises:

the second determination module is used for determining the incidence relation between a second preset pressure value and a second set physical parameter value of the liquid pressure in the shunt pipeline when the backflow electromagnetic valve and the liquid pressure unit are controlled to be opened;

a second obtaining module, configured to obtain a physical parameter value corresponding to the second set physical parameter value;

and the second control module is used for controlling to close the liquid pressure unit and the backflow electromagnetic valve when the acquired physical parameter value reaches the second set physical parameter value.

25. The device according to claim 21 or 22, wherein the first control module is specifically configured to control the opening of the hydraulic pressure unit at intervals of a preset interval duration.

26. The device according to any one of claims 19 to 25, wherein the first control module is specifically configured to, when controlling to open at least one of the hydraulic pressure unit and the solenoid valve, control to close the solenoid valve before controlling to close the hydraulic pressure unit;

and controlling to close the liquid pressure unit when the acquired physical parameter value reaches a first set physical parameter value.

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