CN117432858A - Quick temperature control system of instant heating type tap - Google Patents
Quick temperature control system of instant heating type tap Download PDFInfo
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- CN117432858A CN117432858A CN202311280501.5A CN202311280501A CN117432858A CN 117432858 A CN117432858 A CN 117432858A CN 202311280501 A CN202311280501 A CN 202311280501A CN 117432858 A CN117432858 A CN 117432858A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 157
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 345
- 239000008236 heating water Substances 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000011217 control strategy Methods 0.000 claims description 10
- 230000036760 body temperature Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 3
- 230000035622 drinking Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Domestic Plumbing Installations (AREA)
Abstract
The invention discloses a rapid temperature control system of an instant heating faucet, which comprises the steps of estimating the preheating time of a heating body under the condition that the heating water taking instruction is acquired, and carrying out sectional monitoring based on the preheating time and the preset water taking time; thus obtaining the predicted basic water temperature of the water source to be heated under different flow rates; determining the flow rate of the second waterway and the flow rate of the third waterway based on the predicted base water temperature and the corresponding flow rate of the water source to be heated; determining the mixed water temperature of the water source to be heated based on the flow rate of the second waterway and the flow rate of the third waterway; and comparing the mixed water temperature of the water source to be heated with the predicted basic water temperature of the water source to be heated, and performing temperature compensation on the heating area.
Description
Technical Field
The invention relates to the technical field of water purification and heating, in particular to a rapid temperature control system of an instant heating faucet.
Background
In the related art, the water dispenser has a function of providing hot water and cold water, and along with the development of the water dispenser technology, the water dispenser is improved in related art, such as the Chinese patent CN216569560U, and the water dispenser with the multi-waterway system can sterilize the waterway and the water tank assembly by utilizing the sterilization assembly, so that the water use safety is ensured. Or the problem of the water tank is controlled by the Chinese patent publication CN111685597A to control the output water temperature;
however, there is a problem that the water source is heated by the water tank, how to ensure that the water source in the water tank is the sedimentary water left in the past, and in order to ensure the safety of the water source, the water source is reused by high-temperature sterilization, firstly, the high-temperature sterilization needs time, and the experience of a user is greatly influenced. Moreover, how to quickly control the temperature of the output water flow of the water source after high-temperature sterilization can not meet different drinking water demands of users, and the water source does not have the demand of directly obtaining proper warm water, so that great inconvenience exists under the condition that the users have higher demands on the drinking water temperature. Especially for infants, the discomfort of the infants can be easily caused by the cold or hot drinking water temperature, and the drinking experience is influenced.
In view of this, the present invention provides a rapid temperature control system for an instant heating faucet.
Disclosure of Invention
The invention aims to provide a rapid temperature control system of an instant heating type faucet, which aims to solve the problem of temperature control of a small miniature water dispenser and avoid using a temporary storage water tank with large capacity or complex heating body control.
The purpose of the invention is realized in the following way: a rapid temperature control system for an instant heating faucet, comprising:
under the condition that the heating water taking instruction is obtained, estimating the preheating time of the heating body, and carrying out sectional monitoring based on the preheating time and the preset water taking time; thus obtaining the predicted basic water temperature of the water source to be heated under different flow rates;
determining the flow rate of the second waterway and the flow rate of the third waterway based on the predicted base water temperature and the corresponding flow rate of the water source to be heated; determining the mixed water temperature of the water source to be heated based on the flow rate of the second waterway and the flow rate of the third waterway;
and comparing the mixed water temperature of the water source to be heated with the predicted basic water temperature of the water source to be heated, and performing temperature compensation on the heating area.
Further, the heating area is an area where a water source to be heated passes through the heating body, and the obtaining logic of the water source to be heated is as follows:
the preset water taking instruction comprises a normal temperature water taking instruction and a heating water taking instruction;
if the preset water taking instruction is a normal-temperature water taking instruction, the control module controls the electromagnetic valve A to be closed, and filtered water of a first water temperature is output through the first waterway; the first water temperature is warm water;
if the preset water taking instruction is a heating water taking instruction, analyzing the residual water level information in the water storage tank and the second water temperature to generate a first temperature control strategy, mixing the second water path and the third water path based on the first temperature control strategy, and marking the mixed filtered water as a water source to be heated; and the mixed water temperature of the water source to be heated is extracted in real time through the temperature sensor C.
Further, the generating logic of the first temperature control strategy is as follows:
the water storage tank is sequentially divided into a high-level water storage area, a standard water storage area and a low-level water storage area according to a preset water level maximum value and a preset water level minimum value; the remaining water in the water storage tank is analyzed as follows:
if the residual water quantity in the water storage tank is in the high-level water storage area, the electromagnetic valve B is cut off, and the primary flow rate and the second water temperature of the second waterway are provided;
if the residual water quantity in the water storage tank is in the standard water storage area, closing a high-level liquid level switch and opening an electromagnetic valve B; starting the first heating component to heat the high-level water storage area, and providing a second water path secondary flow rate and a second water temperature;
if the residual water quantity of the water storage tank is lower than the low-level water storage area, closing a low-level liquid level switch and opening an electromagnetic valve B; and starting the first heating assembly to heat the high-level water storage area and the standard water storage area, and providing the third-level flow rate of the second waterway and the second water temperature.
Further, the first heating component heats the filtered water in the water storage tank; the first heating component is connected with the external electric control part to control the operation of the first heating component, and the water pump is connected with the water storage tank to output in the flow direction of the second waterway.
Further, the analysis logic of the flow rate of the water source to be heated is:
the flow rate of the water source to be heated is the sum of the flow rate of the second waterway and the flow rate of the third waterway;
the flow rate of the second waterway is the sum of the output values of the flowmeter B and the flowmeter C;
taking the flow rate of the second waterway, the second water temperature and the first water temperature as input values, taking the predicted basic water temperature and the flow rate of the water source to be heated as output values, obtaining the flow rate corresponding to the third waterway, and controlling the flow restriction of the flow limiting valve based on the flow rate of the third waterway.
Further, during the heating process of the water source to be heated, the self condition of the heating body needs to be considered, and the preheating time length of the heating body is extracted; and the sectional control is carried out by combining the preset water taking time of the operator;
if the water taking time is within the preheating time, evaluating the preheating effect of the heating body so as to obtain the predicted basic water temperature of the water source to be heated;
and if the water taking time exceeds the preheating time, the heating body heats the water source to be heated at constant pressure, so that the predicted basic water temperature of the water source to be heated is obtained.
Further, obtaining the heating stopping time of the heating body for executing the heating stopping operation last time and the initial temperature of the corresponding heating body;
acquiring a first time difference between the heating stopping time and the current time;
calculating the preheating duration of the heating body based on the initial temperature of the heating body and the first time difference; updating the preheating time length according to the calculation result;
the preheating duration also comprises a preset system lag duration;
the estimation formula of the preheating duration is as follows:
wherein: t (T) y For preheating period of time T z For presetting the lag time of the system, m is the mass of the heating body, and c is the heat capacity of the heating bodyThe amount Δw is the difference between the target heating body temperature and the initial temperature, and p is the heating power.
Further, the logic for performing temperature compensation on the heating area is:
the current limit compensation strategy comprises a first current limit strategy, a second current limit strategy and a third current limit strategy.
Subtracting the predicted basic water temperature of the water source to be heated from the mixed water temperature of the water source to be heated to obtain a first temperature difference; a preset temperature difference threshold interval [ WC1, WC2] is obtained based on data analysis of a large number of first water temperatures, wherein WC1 is less than WC2,
if the first temperature difference is larger than WC2, generating a cooling instruction, and generating a first current limiting strategy based on the cooling instruction;
if the first temperature difference is greater than WC1 and less than or equal to WC2, generating first-stage precise heating; generating a second flow restricting strategy based on the first level of precision heating;
if the first temperature difference is less than or equal to WC1, generating second-stage accurate heating, and generating a third current limiting strategy based on the second-stage accurate heating;
and keeping the water outlet temperature of the secondary heating water source to be the preset water taking temperature based on the current limiting compensation strategy.
A waterway system of a water dispenser based on the rapid temperature control system of an instant heating faucet comprises a first waterway, at least one second waterway and a third waterway:
a first waterway connecting the normal temperature filtered water to the tap based on the solenoid valve a;
the second waterway is connected to the water storage tank based on the electromagnetic valve B, and the water storage tank is connected to the heating body through the flowmeter; the water storage tank is a heating type water storage tank;
the third waterway is connected to the input end of the heating body based on the electromagnetic valve C and the flow limiting valve A and is used for adjusting the initial temperature entering the heating body;
the input end of the heating body is connected with the water outlet ends of the second waterway and the third waterway respectively, and the input end of the heating body is connected to the tap through the flow limiting valve.
The invention has the beneficial effects that:
according to the invention, the water temperature of the water dispenser is accurately controlled by a rapid temperature control method, and the heating and mixing modes are adjusted according to the requirements, so that not only is energy saved, but also unnecessary heating operation is reduced, and thus the consumption of electric power or fuel gas is reduced. In addition, the flowing water flow is quickly controlled in temperature, so that the problem of leaving equipment Chen Jishui is reduced, and the sanitary environment is improved; by ensuring proper water temperature, the user can prefer to use the water dispenser, and the satisfaction degree of the user on the performance of the water dispenser is improved.
Drawings
FIG. 1 is a schematic view of the water usage of the rapid temperature control system of the instant faucet of the present invention;
FIG. 2 is a flow chart of a rapid temperature control method of the instant heating faucet of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings 1-2 and specific embodiments, it being understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The embodiment of the application firstly discloses a quick temperature control system of instant heating type tap, the water temperature control system of the output water of the existing small-sized miniature water dispenser is to ensure that the temperature of the output water is unchanged, and the temperature of the output water cannot be determined by controlling the temperature of the water storage tank only, because in practical application, the temperature of the output water is not fixed, if the temperature of the water storage tank is heated too high, the output of subsequent low-temperature water is not facilitated; the plurality of water storage tanks are arranged, so that the small and miniature design is not facilitated; for the above reasons, we set a water storage tank for adjusting the predicted basic water temperature of the water source to be heated, and a method for realizing rapid temperature control in the heating area by controlling the flow rate of the water source to be heated.
Referring to fig. 1-2, the method comprises the steps of:
under the condition that the heating water taking instruction is obtained, estimating the preheating time of the heating body, and carrying out sectional monitoring based on the preheating time and the preset water taking time; thus obtaining the predicted basic water temperature of the water source to be heated under different flow rates;
determining the flow rate of the second waterway and the flow rate of the third waterway based on the predicted base water temperature and the corresponding flow rate of the water source to be heated; determining the mixed water temperature of the water source to be heated based on the flow rate of the second waterway and the flow rate of the third waterway;
and comparing the mixed water temperature of the water source to be heated with the predicted basic water temperature of the water source to be heated, and performing temperature compensation on the heating area.
Specifically, the heating area is an area where a water source to be heated passes through the heating body; the acquisition logic of the water source to be heated is as follows:
the preset water taking instruction comprises a normal-temperature water taking instruction and a heating water taking instruction; comparing and analyzing the preset water taking instruction;
if the preset water taking instruction is a normal-temperature water taking instruction, the control module controls the electromagnetic valve A to be closed, and filtered water of a first water temperature is output through the first waterway; the first water temperature is warm water; what needs to be explained here is: the temperature of the water can change according to the change of the room temperature, and is not a fixed value;
if the preset water taking instruction is a heating water taking instruction, analyzing the residual water level information in the water storage tank and the second water temperature to generate a first temperature control strategy, and mixing the second water path and the third water path based on the first temperature control strategy to generate a water source to be heated; extracting the flow rate of a water source to be heated and predicting the basic water temperature;
wherein the second water temperature is the real-time water temperature in the water storage tank; the first temperature control strategy controls the closing of the electromagnetic valve B and the electromagnetic valve C through the control module, and controls the flow rate of the flow limiting valve to control the flow rate of the third waterway; the second waterway and the third waterway are mixed according to a preset mixing proportion, and the mixed filtered water is marked as a water source to be heated; and the mixed water temperature of the water source to be heated is extracted in real time through the temperature sensor C.
The generation logic of the first temperature control strategy is as follows:
the water storage tank is sequentially divided into a high-level water storage area, a standard water storage area and a low-level water storage area according to a preset water level maximum value and a preset water level minimum value; the remaining water in the water storage tank is analyzed as follows:
if the residual water quantity in the water storage tank is in the high-level water storage area, the electromagnetic valve B is cut off, and the primary flow rate and the second water temperature of the second waterway are provided;
if the residual water quantity in the water storage tank is in the standard water storage area, closing a high-level liquid level switch and opening an electromagnetic valve B; starting the first heating component to heat the high-level water storage area, and providing a second water path secondary flow rate and a second water temperature;
if the residual water quantity of the water storage tank is lower than the low-level water storage area, closing a low-level liquid level switch and opening an electromagnetic valve B; and starting the first heating assembly to heat the high-level water storage area and the standard water storage area, and providing the third-level flow rate of the second waterway and the second water temperature.
Wherein: the first heating component heats the filtered water in the water storage tank; the first heating component is connected with the external electric control part to control the operation of the first heating component, and the water pump is connected with the water storage tank to output in the flow direction of the second waterway.
The analysis logic of the flow rate of the water source to be heated is:
the flow rate of the water source to be heated is the sum of the flow rate of the second waterway and the flow rate of the third waterway;
the flow rate of the second waterway is the sum of the output values of the flowmeter B and the flowmeter C;
taking the flow rate of the second waterway, the second water temperature and the first water temperature as input values, taking the predicted basic water temperature and the flow rate of the water source to be heated as output values, obtaining the flow rate corresponding to the third waterway, and controlling the flow restriction of the flow limiting valve based on the flow rate of the third waterway.
In addition, memory analysis is needed to be carried out on the heating body, and the memory analysis is added because the system needs to be adjusted in real time according to the self condition of the heating body along with the use of the heating body and the effect of each performance no longer like that of the test, so that the aim of rapid temperature control of the faucet is not affected;
in view of this, when the water source to be heated is heated, the self condition of the heating body needs to be considered, and the preheating time length of the heating body is extracted; and the sectional control is carried out by combining the preset water taking time of the operator;
if the water taking time is within the preheating time, evaluating the preheating effect of the heating body, so as to obtain the predicted basic water temperature of the water source to be heated under different flow rates;
and if the water taking time exceeds the preheating time, the heating body heats the water source to be heated at constant pressure, so that the predicted basic water temperature of the water source to be heated under different flow rates is obtained.
Because the heating body is limited in size, such as heat loss, heat conductivity and the like, heating factors influencing the heating body are negligible, the heating body reaches the target heating body temperature according to the initial temperature, the target heating body temperature, the preheating duration and the heat capacity of the heating body after being heated by fixed power.
Acquiring heating stopping time of the heating body for executing heating stopping operation last time and initial temperature of the corresponding heating body;
acquiring a first time difference between the heating stopping time and the current time;
calculating the preheating duration of the heating body based on the initial temperature of the heating body and the first time difference; and updating the preheating time according to the calculation result.
The preheating duration also comprises a preset system lag duration;
the estimation formula of the preheating duration is as follows:
wherein: t (T) y For a preheating period (seconds), T z Presetting a system lag time (seconds); m is the mass of the heating body (kg), c is the heat capacity of the heating body (joule/kg. On or joule/kg. Celsius), aw is the temperature difference between the target heating body temperature and the initial temperature (on or celsius), and p is the heating power (watt).
Specifically, the greater the mass of the heating body, the longer the preheating period, since more heat needs to be transferred to the whole object; the heat capacity of the heating body represents the energy required for heating up the object per unit mass, and the object with higher heat capacity requires more heat for heating up, so the preheating time is longer; the greater the temperature difference between the target heating body temperature and the initial temperature, the longer the preheating period, because more heat needs to be transferred to the heating body; heating power means heat transferred per unit time. The higher the power, the shorter the preheat time, because more heat is transferred per unit time.
After the heating body reaches the target heating body temperature, the water source to be heated is heated through the heating area to obtain the expected water outlet temperature; when the heating grade of the water source to be heated is determined, firstly determining the flow rate of the water source to be heated in the heating area; the outflow heating water source can be ensured to reach the expected water outlet temperature, so that the accuracy of the water outlet temperature is improved. (it should be noted that, the water outlet speed of the faucet is a variable value, but the water outlet speed also directly affects the user experience, so that the fastest water outlet speed is required as possible.
The logic for temperature compensation of the heating area is as follows:
the current limit compensation strategy comprises a first current limit strategy, a second current limit strategy and a third current limit strategy.
Subtracting the predicted basic water temperature of the water source to be heated from the mixed water temperature of the water source to be heated to obtain a first temperature difference; a preset temperature difference threshold interval [ WC1, WC2] is obtained based on data analysis of a large number of first water temperatures, wherein WC1 is less than WC2,
if the first temperature difference is larger than WC2, generating a cooling instruction, and generating a first current limiting strategy based on the cooling instruction; because the heating body used in the embodiment is a constant pressure heating device, the temperature rise value of the water temperature is reduced by increasing the flow rate; the first flow limiting strategy is to increase the water flow speed of the heating area;
if the first temperature difference is greater than WC1 and less than or equal to WC2, generating first-stage precise heating; generating a second flow restricting strategy based on the first level of precision heating; increasing the temperature rise value of the water temperature by a first low flow rate mode; the second flow limiting strategy is to reduce the water flow speed in the heating area;
if the first temperature difference is less than or equal to WC1, generating second-stage accurate heating, and generating a third current limiting strategy based on the second-stage accurate heating; increasing the temperature rise value of the water temperature in a second flow rate reducing mode; the third flow limiting strategy is to reduce the water flow speed in the heating area;
wherein the first low flow rate is greater than the second low flow rate;
and keeping the water outlet temperature of the secondary heating water source to be the preset water taking temperature based on the current limiting compensation strategy.
The outlet water temperature of the secondary heating water source is kept equal to the preset water taking temperature based on the current limiting compensation strategy. The heating operation is adjusted according to the actual temperature difference to ensure that the temperature of the water source reaches the desired level.
A waterway system of a water dispenser based on the rapid temperature control system of an instant heating faucet comprises a first waterway, at least one second waterway and a third waterway:
a first waterway connecting the normal temperature filtered water to the tap based on the solenoid valve a;
the second waterway is connected to the water storage tank based on the electromagnetic valve B, and the water storage tank is connected to the heating body through the flowmeter; the water storage tank is a heating type water storage tank;
the third waterway is connected to the input end of the heating body based on the electromagnetic valve C and the flow limiting valve A and is used for adjusting the initial temperature entering the heating body;
the input end of the heating body is connected with the water outlet ends of the second waterway and the third waterway respectively, and the input end of the heating body is connected to the tap through the flow limiting valve.
The foregoing is a preferred embodiment of the present invention, and various changes and modifications may be made therein by those skilled in the art without departing from the general inventive concept, and such changes and modifications should be considered as falling within the scope of the present invention as defined in the appended claims.
Claims (9)
1. A rapid temperature control system for an instant faucet, comprising:
under the condition that the heating water taking instruction is obtained, estimating the preheating time of the heating body, and carrying out sectional monitoring based on the preheating time and the preset water taking time; thus obtaining the predicted basic water temperature of the water source to be heated under different flow rates;
determining the flow rate of the second waterway and the flow rate of the third waterway based on the predicted base water temperature and the corresponding flow rate of the water source to be heated; determining the mixed water temperature of the water source to be heated based on the flow rate of the second waterway and the flow rate of the third waterway;
and comparing the mixed water temperature of the water source to be heated with the predicted basic water temperature of the water source to be heated, and performing temperature compensation on the heating area.
2. The rapid temperature control system of claim 1, wherein the heating area is an area where a water source to be heated passes through the heating body, and the logic for obtaining the water source to be heated is as follows:
the preset water taking instruction comprises a normal temperature water taking instruction and a heating water taking instruction;
if the preset water taking instruction is a normal-temperature water taking instruction, the control module controls the electromagnetic valve A to be closed, and filtered water of a first water temperature is output through the first waterway; the first water temperature is warm water;
if the preset water taking instruction is a heating water taking instruction, analyzing the residual water level information in the water storage tank and the second water temperature to generate a first temperature control strategy, mixing the second water path and the third water path based on the first temperature control strategy, and marking the mixed filtered water as a water source to be heated; and the mixed water temperature of the water source to be heated is extracted in real time through the temperature sensor C.
3. The rapid thermal control system of claim 2, wherein the first temperature control strategy generation logic is:
the water storage tank is sequentially divided into a high-level water storage area, a standard water storage area and a low-level water storage area according to a preset water level maximum value and a preset water level minimum value; the remaining water in the water storage tank is analyzed as follows:
if the residual water quantity in the water storage tank is in the high-level water storage area, the electromagnetic valve B is cut off, and the primary flow rate and the second water temperature of the second waterway are provided;
if the residual water quantity in the water storage tank is in the standard water storage area, closing a high-level liquid level switch and opening an electromagnetic valve B; starting the first heating component to heat the high-level water storage area, and providing a second water path secondary flow rate and a second water temperature;
if the residual water quantity of the water storage tank is lower than the low-level water storage area, closing a low-level liquid level switch and opening an electromagnetic valve B; and starting the first heating assembly to heat the high-level water storage area and the standard water storage area, and providing the third-level flow rate of the second waterway and the second water temperature.
4. The rapid temperature control system of an instant heating faucet of claim 1, wherein the first heating assembly heats the filtered water in the water reservoir; the first heating component is connected with the external electric control part to control the operation of the first heating component, and the water pump is connected with the water storage tank to output in the flow direction of the second waterway.
5. The rapid thermal control system of claim 4, wherein the analysis logic of the flow rate of the water source to be heated is:
the flow rate of the water source to be heated is the sum of the flow rate of the second waterway and the flow rate of the third waterway;
the flow rate of the second waterway is the sum of the output values of the flowmeter B and the flowmeter C;
taking the flow rate of the second waterway, the second water temperature and the first water temperature as input values, taking the predicted basic water temperature and the flow rate of the water source to be heated as output values, obtaining the flow rate corresponding to the third waterway, and controlling the flow restriction of the flow limiting valve based on the flow rate of the third waterway.
6. The rapid temperature control system of an instant heating faucet according to claim 5, wherein the preheating duration of the heating body is extracted by considering the self condition of the heating body during the heating process of the water source to be heated; and the sectional control is carried out by combining the preset water taking time of the operator;
if the water taking time is within the preheating time, evaluating the preheating effect of the heating body so as to obtain the predicted basic water temperature of the water source to be heated;
and if the water taking time exceeds the preheating time, the heating body heats the water source to be heated at constant pressure, so that the predicted basic water temperature of the water source to be heated is obtained.
7. The rapid temperature control system of an instant heating faucet according to claim 6, wherein a stop heating time of the heating body for which the heating stop operation was last performed and an initial temperature of the corresponding heating body are obtained;
acquiring a first time difference between the heating stopping time and the current time;
calculating the preheating duration of the heating body based on the initial temperature of the heating body and the first time difference; updating the preheating time length according to the calculation result;
the preheating duration also comprises a preset system lag duration;
the estimation formula of the preheating duration is as follows:
wherein: t (T) y For preheating period of time T z For the preset system lag time, m is the mass of the heating body, c is the heat capacity of the heating body, deltaw is the temperature difference between the target heating body temperature and the initial temperature, and p is the heating power.
8. The rapid thermal control system of claim 7, wherein the logic for temperature compensating the heating zone is:
the current limit compensation strategy comprises a first current limit strategy, a second current limit strategy and a third current limit strategy.
Subtracting the predicted basic water temperature of the water source to be heated from the mixed water temperature of the water source to be heated to obtain a first temperature difference; a preset temperature difference threshold interval [ WC1, WC2] is obtained based on data analysis of a large number of first water temperatures, wherein WC1 is less than WC2,
if the first temperature difference is larger than WC2, generating a cooling instruction, and generating a first current limiting strategy based on the cooling instruction;
if the first temperature difference is greater than WC1 and less than or equal to WC2, generating first-stage precise heating; generating a second flow restricting strategy based on the first level of precision heating;
if the first temperature difference is less than or equal to WC1, generating second-stage accurate heating, and generating a third current limiting strategy based on the second-stage accurate heating;
and keeping the water outlet temperature of the secondary heating water source to be the preset water taking temperature based on the current limiting compensation strategy.
9. A waterway system of a drinking machine, characterized in that a rapid temperature control system of an instant heating faucet based on the above claims 1-8, comprises a first waterway, at least one second waterway and a third waterway:
a first waterway connecting the normal temperature filtered water to the tap based on the solenoid valve a;
the second waterway is connected to the water storage tank based on the electromagnetic valve B, and the water storage tank is connected to the heating body through the flowmeter; the water storage tank is a heating type water storage tank;
the third waterway is connected to the input end of the heating body based on the electromagnetic valve C and the flow limiting valve A and is used for adjusting the initial temperature entering the heating body;
the input end of the heating body is connected with the water outlet ends of the second waterway and the third waterway respectively, and the input end of the heating body is connected to the tap through the flow limiting valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311280501.5A CN117432858A (en) | 2023-09-28 | 2023-09-28 | Quick temperature control system of instant heating type tap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311280501.5A CN117432858A (en) | 2023-09-28 | 2023-09-28 | Quick temperature control system of instant heating type tap |
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| Publication Number | Publication Date |
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| CN117432858A true CN117432858A (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311280501.5A Pending CN117432858A (en) | 2023-09-28 | 2023-09-28 | Quick temperature control system of instant heating type tap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118270869A (en) * | 2024-05-31 | 2024-07-02 | 苏州滨特尔水处理有限公司 | Heating all-in-one machine based on MUHS control and waterway control method |
-
2023
- 2023-09-28 CN CN202311280501.5A patent/CN117432858A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118270869A (en) * | 2024-05-31 | 2024-07-02 | 苏州滨特尔水处理有限公司 | Heating all-in-one machine based on MUHS control and waterway control method |
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