CN111397132A - Energy-saving control system, method and storage medium for industrial computer room based on big data - Google Patents

Abstract

The invention relates to an industrial machine room energy-saving regulation and control system, a method and a storage medium based on big data, comprising the following steps: step 401, acquiring a starting instruction of a user, and operating the air conditioner to a rated platform power to enable the air conditioner to enter a stable state; step 402, acquiring a set temperature T1 of an evaporator by a user and a current temperature T2 of the evaporator, and performing variable frequency control on the air conditioner according to values of T1 and T2; and 403, acquiring the injection quantity H of the external compressed gas, judging whether the H is lower than a first threshold, if so, adjusting the operating frequency of the air conditioner to the lowest frequency, judging whether the H is higher than a second threshold, and if so, adjusting the operating frequency of the air conditioner to the highest frequency. The invention can establish an energy-saving regulation and control system taking the direct-current variable-frequency industrial air conditioner as an element, and provides a corresponding variable-frequency control method by combining the system, so that the energy-saving regulation and control of the industrial machine room is more intelligent, and the consumption of electric energy of the industrial machine room is greatly saved.

Description

Energy-saving control system, method and storage medium for industrial computer room based on big data

technical field

The invention relates to the field of intelligent manufacturing, in particular to an energy-saving regulation system, method and storage medium for an industrial computer room based on big data.

Background technique

In industrial computer rooms, it is often necessary to use air conditioners for computer rooms. Through industrial air conditioners, the temperature and humidity in the computer room can be adjusted to a suitable range, so as to maintain the stability of the industrial computer room. However, industrial air conditioners are often very power-hungry, so an energy-saving control system is generally added to the industrial computer room to enable the industrial air conditioner to perform intelligent frequency changes and thus save energy.

However, the existing energy-saving control systems on the market have reached the bottleneck in the technology of fixed frequency control, and the efficiency has not been maximized, and they are also faced with the occurrence of ice blockage caused by the low dew point temperature and excessive loss when the system is no-load. Electricity etc.

Today's market needs an industrial computer room energy-saving control system, method and storage medium based on big data, so that the energy-saving control of the industrial computer room is more intelligent, and the power consumption of the industrial computer room is greatly reduced.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the deficiencies of the prior art, to provide an energy-saving control system, method and storage medium for industrial computer rooms based on big data, which can establish an energy-saving control system with a DC frequency conversion industrial air conditioner as a component, and propose a corresponding frequency conversion system in combination with the system. The control method is used to make the energy-saving regulation of the industrial computer room more intelligent, and to greatly save the power consumption of the industrial computer room.

In order to achieve the above object, the present invention adopts the following technical scheme:

An energy-saving control system for an industrial computer room based on big data is proposed, including: a condenser, the condenser is composed of a plurality of coils, a first temperature probe is arranged at the coils, and an AC fan is also arranged on the condenser;

The inlet end of the condenser is connected to the output port of the evaporator through a capillary, the input port of the evaporator is connected to the liquid storage tank of the DC variable frequency compressor, and the liquid storage tank is connected to the input port of the evaporator A second temperature probe is arranged at the place;

The exhaust end of the condenser is connected with the DC variable frequency compressor, a third temperature probe is further arranged at the exhaust end of the condenser, and the control end of the DC variable frequency compressor is connected to a variable frequency controller;

The control end of the AC fan is connected to the frequency conversion controller, and the frequency conversion controller is provided with an operation display panel, and the operation display panel is used for a user to perform man-machine interaction with the frequency conversion controller.

Further, the input port of the evaporator is provided with a compressed gas injection amount monitoring module, and the compressed gas injection amount monitoring module is used to monitor the injection amount H of the compressed gas outside the evaporator.

Further, the evaporator is also provided with a temperature setting module, and the adjustment range of the temperature setting module is 0-15°C.

The present invention also proposes an energy-saving regulation method for an industrial computer room based on big data, which is characterized in that it includes the following:

Step 401: Obtain a user's start-up instruction, run the air conditioner to the rated platform power, and make the air conditioner enter a stable state;

Step 402: Obtain the user's set temperature T1 of the evaporator and the current temperature T2 of the evaporator, and perform frequency conversion control on the air conditioner according to the values of T1 and T2;

Step 403: Obtain the injection amount H of the external compressed gas, and determine whether H is lower than the first threshold. If so, adjust the operating frequency of the air conditioner to the lowest frequency, and determine whether H is higher than the second threshold. If so, adjust the operating frequency of the air conditioner. to the highest frequency.

Further, the rated platform frequency, the lowest frequency and the highest frequency in the above steps 401 and 403 are all frequencies set by the compressor.

Further, in the above step 402, the frequency conversion control of the air conditioner according to the values of T1 and T2 specifically includes the following:

Step 601: Determine whether T2 is lower than a third threshold, and if so, determine that the air conditioning system has a low temperature limit of the evaporator, and adjust the operating frequency of the air conditioner to the lowest frequency;

Step 602: Acquire the duration of the low temperature limit of the evaporator in the air conditioning system, determine whether the duration is higher than a fourth threshold, and if so, control the air conditioner to enter a shutdown state;

Step 603, when the air conditioner enters the shutdown state due to step 602 for a duration of up to the fifth threshold, control the air conditioner to automatically start;

Step 604: Repeat the above steps 601-603.

Further, in the above step 402, the frequency conversion control of the air conditioner according to the values of T1 and T2 also includes the following:

Obtain the difference T1-T2 between T1 and T2, match the difference T1-T2 with the corresponding numerical table in the difference database, and use the matching frequency value as the new frequency value to control the compressor of the air conditioner to use the new frequency value. frequency value to run.

Further, the difference database is obtained in the following manner:

The technician has obtained multiple frequency qualified test values of the compressor corresponding to the value of T1-T2 at every 0.5 interval between [-5, 5] after enough experimental tests. The frequency qualified test value should be taken as When the frequency qualified test value is used, the air conditioner can be qualified in the case of the temperature difference between T1 and T2, and then the arithmetic mean value M _T1-T2 of the obtained multiple frequency qualified test values can be obtained, then M _T1-T2 is the current temperature difference. It is the frequency value automatically selected by the system when T1-T2.

The present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, characterized in that, when the computer program is executed by a processor, any one of the energy-saving methods for inverter air conditioners is implemented A step of.

The beneficial effects of the present invention are:

The present invention can obtain the following beneficial effects when adopting the above-mentioned system and method:

The invention provides an energy-saving control system, method and storage medium for industrial computer room based on big data, which can establish an energy-saving control system with a DC variable frequency industrial air conditioner as a component, and propose a corresponding frequency conversion control method in combination with the system, so as to save energy in the industrial computer room. The regulation is more intelligent, and the power consumption of the industrial computer room is greatly saved.

Description of drawings

FIG. 1 is a flow chart of the energy-saving regulation method for industrial computer room based on big data according to the present invention.

Detailed ways

The concept, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings, so as to fully understand the purpose, solutions and effects of the present invention. It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The same reference numbers are used throughout the drawings to refer to the same or like parts.

The present invention proposes an energy-saving control system for an industrial computer room based on big data, including: a condenser, the condenser is composed of a plurality of coils, a first temperature probe is arranged at the coils, and an AC fan is also arranged on the condenser ;

The inlet end of the condenser is connected to the output port of the evaporator through a capillary, the input port of the evaporator is connected to the liquid storage tank of the DC variable frequency compressor, and the liquid storage tank is connected to the input port of the evaporator A second temperature probe is arranged at the place;

The exhaust end of the condenser is connected with the DC variable frequency compressor, a third temperature probe is further arranged at the exhaust end of the condenser, and the control end of the DC variable frequency compressor is connected to a variable frequency controller;

The control end of the AC fan is connected to the frequency conversion controller, and the frequency conversion controller is provided with an operation display panel, and the operation display panel is used for a user to perform man-machine interaction with the frequency conversion controller.

As a preferred embodiment of the present invention, the input port of the evaporator is provided with a compressed gas injection amount monitoring module, and the compressed gas injection amount monitoring module is used to monitor the injection amount H of the compressed gas outside the evaporator.

As a preferred embodiment of the present invention, the evaporator is further provided with a temperature setting module, and the adjustment range of the temperature setting module is 0-15°C.

Referring to Fig. 1, the present invention also proposes an energy-saving regulation method for industrial computer room based on big data, which is characterized in that it includes the following:

Step 401: Obtain a user's start-up instruction, run the air conditioner to the rated platform power, and make the air conditioner enter a stable state;

Step 402: Obtain the user's set temperature T1 of the evaporator and the current temperature T2 of the evaporator, and perform frequency conversion control on the air conditioner according to the values of T1 and T2;

Step 403: Obtain the injection amount H of the external compressed gas, and determine whether H is lower than the first threshold. If so, adjust the operating frequency of the air conditioner to the lowest frequency, and determine whether H is higher than the second threshold. If so, adjust the operating frequency of the air conditioner. to the highest frequency. The first threshold and the second threshold are set by engineers.

As a preferred embodiment of the present invention, the rated platform frequency, the lowest frequency and the highest frequency in the above steps 401 and 403 are all frequencies set by the compressor.

As a preferred embodiment of the present invention, the frequency conversion control of the air conditioner according to the values of T1 and T2 in the above step 402 specifically includes the following:

Step 601: Determine whether T2 is lower than a third threshold, and if so, determine that the air conditioning system has a low temperature limit of the evaporator, and adjust the operating frequency of the air conditioner to the lowest frequency; the third threshold is set by an engineer.

Step 602: Acquire the duration of the low temperature limit of the evaporator in the air conditioning system, determine whether the duration is higher than a fourth threshold, and if so, control the air conditioner to enter a shutdown state;

Step 603, when the air conditioner enters the shutdown state due to step 602 for a duration of up to the fifth threshold, control the air conditioner to automatically start;

Step 604: Repeat the above steps 601-603.

As a preferred embodiment of the present invention, the frequency conversion control of the air conditioner according to the values of T1 and T2 in the above step 402 also includes the following:

Obtain the difference T1-T2 between T1 and T2, match the difference T1-T2 with the corresponding numerical table in the difference database, and use the matching frequency value as the new frequency value to control the compressor of the air conditioner to use the new frequency value. frequency value to run.

As a preferred embodiment of the present invention, the difference database is obtained in the following manner:

The technician has obtained multiple frequency qualified test values of the compressor corresponding to the value of T1-T2 at every 0.5 interval between [-5 and 5 after enough experimental tests. When the frequency qualified test value is used, the air conditioner can be qualified under the temperature difference of T1-T2, and then the arithmetic mean value M _T1-T2 of the obtained multiple frequency qualified test values can be obtained, then M _T1-T2 is when the temperature difference is The frequency value automatically selected by the system when T1-T2.

Specifically, it is constructed as shown in the following table:

And when calculating, the controller will use the value of T1-T2 in the way that the value of T1-T2 is less than 3 after the decimal point, and the way that the 1 digit after the decimal point is less than 3, and the way of advancing by 3, that is, -4.1 is counted as -4, -4.3 is counted as -4.5. Perform calculations to ensure that the values of T1-T2 all have corresponding frequencies.

Specifically, when the present invention is implemented, when the system is started for the first time, it will run to the rated platform frequency, and after the system is brought into a stable state, the frequency rise and fall control is performed according to the temperature difference T1-T2 between the current evaporator temperature T1 and the set temperature T2, The automatic frequency raising and lowering technology of the compressor makes real-time tracking changes with the temperature difference between the evaporator temperature and the set temperature, and finds the most suitable frequency point to match the current system cooling capacity output requirements, which effectively solves the problem of constant frequency and constant output cooling. quantity issue. When the external compressed gas injection amount H is low, the controller can quickly and automatically reduce the frequency to the lowest frequency allowed by the compressor, thereby greatly reducing the power consumption and achieving the purpose of saving electric energy; when the external compressed gas injection amount H is large When the frequency is high, the controller can quickly and automatically increase the frequency to the highest frequency allowed by the compressor, thereby quickly reducing the temperature of the evaporator, making the condensation water capacity stronger and the water removal efficiency higher; at the same time, when the system has a low temperature limit point of the evaporator , the system will maintain the lowest frequency operation. When the system recovers, the limit will be released. Otherwise, it will enter the shutdown protection. It will automatically start 180 seconds after shutdown, which plays an unattended function.

The present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, characterized in that, when the computer program is executed by a processor, any one of the energy-saving methods for inverter air conditioners is implemented A step of.

The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically alone, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules.

If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on this understanding, the present invention can implement all or part of the processes in the methods of the above embodiments, and can also be completed by instructing relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above method embodiments can 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, and the like. The computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, RandomAccess Memory), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable media may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer-readable media Excluded are electrical carrier signals and telecommunication signals.

Although the present invention has been described in considerable detail and with particular reference to a few of the described embodiments, it is not intended to be limited to any of these details or embodiments or any particular embodiment, but should be considered by reference The appended claims are to provide the broadest possible interpretation of these claims in view of the prior art so as to effectively encompass the intended scope of the invention. Furthermore, the foregoing description of the invention in terms of embodiments foreseen by the inventors is intended to provide a useful description, while insubstantial modifications of the invention not presently foreseen may still represent equivalent modifications of the invention.

The above descriptions are only preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments, as long as the technical effects of the present invention are achieved by the same means, they should all belong to the protection scope of the present invention. Various modifications and changes can be made to its technical solutions and/or implementations within the protection scope of the present invention.

Claims (9)

1. Industry computer lab energy-saving regulation and control system based on big data, its characterized in that includes: the condenser consists of a plurality of coil pipes, a first temperature probe is arranged at the coil pipe, and the condenser is also provided with an alternating current fan;

the air inlet end of the condenser is connected with the output port of the evaporator through a capillary tube, the input port of the evaporator is connected with the liquid storage tank of the direct-current variable-frequency compressor, and a second temperature probe is arranged at the connection position of the liquid storage tank and the input port of the evaporator;

the exhaust end of the condenser is connected with the direct-current variable-frequency compressor, a third temperature probe is further arranged at the exhaust end of the condenser, and the control end of the direct-current variable-frequency compressor is connected with a variable-frequency controller;

the control end of the alternating current fan is connected with the variable frequency controller, the variable frequency controller is provided with an operation display panel, and the operation display panel is used for human-computer interaction between a user and the variable frequency controller.

2. The industrial machine room energy-saving regulation and control system based on big data as claimed in claim 1, wherein the input port of the evaporator is provided with a compressed gas injection amount monitoring module, and the compressed gas injection amount monitoring module is used for monitoring the injection amount H of the compressed gas outside the evaporator.

3. The industrial machine room energy-saving regulation and control system based on big data as claimed in claim 1, wherein the evaporator is further provided with a temperature setting module, and the adjustment range of the temperature setting module is 0-15 ℃.

4. The energy-saving regulation and control method for the industrial machine room based on the big data is characterized by comprising the following steps:

step 401, acquiring a starting instruction of a user, and operating the air conditioner to a rated platform power to enable the air conditioner to enter a stable state;

step 402, acquiring a set temperature T1 of an evaporator by a user and a current temperature T2 of the evaporator, and performing variable frequency control on the air conditioner according to values of T1 and T2;

and 403, acquiring the injection quantity H of the external compressed gas, judging whether the H is lower than a first threshold, if so, adjusting the operating frequency of the air conditioner to the lowest frequency, judging whether the H is higher than a second threshold, and if so, adjusting the operating frequency of the air conditioner to the highest frequency.

5. The energy-saving regulation and control method for the industrial machine room based on the big data as claimed in claim 4, wherein the rated platform frequency, the lowest frequency and the highest frequency in the steps 401 and 403 are all the frequencies set by the compressor.

6. The energy-saving regulation and control method for the industrial machine room based on the big data as claimed in claim 4, wherein the step 402 of performing the frequency conversion control on the air conditioner according to the values of T1 and T2 specifically comprises the following steps:

601, judging whether T2 is lower than a third threshold value, if so, judging that the low-temperature limit condition of an evaporator of the air conditioning system occurs, and adjusting the operating frequency of the air conditioner to the lowest frequency;

step 602, obtaining the duration of the low-temperature limiting condition of the evaporator of the air conditioning system, judging whether the duration is higher than a fourth threshold, and if so, controlling the air conditioner to enter a shutdown state;

step 603, controlling the air conditioner to be automatically started when the air conditioner enters the shutdown state due to the step 602 and the time length reaches a fifth threshold value;

step 604, repeat the above step 601-603.

7. The energy-saving regulation and control method for industrial machine rooms based on big data as claimed in claim 6, wherein the step 402 of performing frequency conversion control on the air conditioner according to the values of T1 and T2 further comprises the following steps:

and acquiring a difference value T1-T2 between T1 and T2, matching the difference value T1-T2 with a corresponding numerical table in a difference value database, and controlling a compressor of the air conditioner to operate at a new frequency value by taking the matched frequency value as the new frequency value.

8. The industrial machine room energy-saving regulation and control method based on big data as claimed in claim 7, wherein the difference database is obtained by:

the technician can test T1-T2 at [ -5, 5 ] through enough experiments]A plurality of frequency qualification test values of the compressor corresponding to the value of every 0.5 space, wherein the frequency qualification test value is the value which can make the air conditioner operate qualified under the temperature difference of T1-T2 when the frequency qualification test value is taken,then, the arithmetic mean value M of the obtained multiple frequency qualification test values is taken_T1-T2Then M is_T1-T2Namely the frequency value automatically selected by the system when the temperature difference is T1-T2.

9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 4-8.

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