Chilled water main engine control method, device, equipment and storage medium

Abstract

The application relates to a cold water main engine control method, device, equipment and storage medium, and relates to the technical field of air conditioners. The method comprises the following steps: acquiring the load of a terminal air conditioner; when the load of the terminal air conditioner is less than a preset load, controlling the cold water main engine to operate at a first load in a preset load range, and acquiring the temperature of a target position; the target position is a position between the cold water main engine and the terminal air conditioner, or a position between the cold water main engine and a cold storage tank; the minimum load of the preset load range is greater than the preset load; when the temperature is less than a first preset temperature, controlling the cold water main engine, a cooling water pump and a cooling tower to stop working; when the temperature is greater than a second preset temperature, controlling the cold water main engine, the cooling water pump and the cooling tower to start working; the second preset temperature is greater than the first preset temperature.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a chiller control method, device, equipment and storage medium. Background Technology

[0002] In the field of air conditioning technology, chillers are mainly used to provide cooling for air conditioners. When the air conditioner's load is low, the chiller's load is also low.

[0003] In related technologies, when a chiller operates under low-load conditions for an extended period of time, the compressor in the chiller will experience surge, and the chiller's operating efficiency will also be low. Summary of the Invention

[0004] This application provides a chiller control method, apparatus, device, and storage medium to at least solve the technical problem of low operating efficiency of chillers in related technologies. The technical solution of this application is as follows:

[0005] According to a first aspect of the embodiments of this application, a chiller control method is provided, comprising: acquiring the load of a terminal air conditioner; when the load of the terminal air conditioner is less than a preset load, controlling the chiller to operate at a first load in a preset load range, and acquiring the temperature at a target location; the target location is the position between the chiller and the terminal air conditioner, or the position between the chiller and the cold storage tank; the minimum load of the preset load range is greater than the preset load; when the temperature is less than a first preset temperature, controlling the chiller, cooling water pump, and cooling tower to stop working; when the temperature is greater than a second preset temperature, controlling the chiller, cooling water pump, and cooling tower to start working; the second preset temperature is greater than the first preset temperature.

[0006] In one possible implementation, the method further includes: when the electricity price of the chiller unit is greater than the standard price and the temperature is less than the third preset temperature, controlling the chiller unit, cooling water pump, and cooling tower to stop working; the third preset temperature is greater than the first preset temperature; when the electricity price of the chiller unit is less than or equal to the standard price and the temperature is greater than the fourth preset temperature, controlling the chiller unit, cooling water pump, and cooling tower to start working; the fourth preset temperature is less than the second preset temperature and greater than the third preset temperature.

[0007] In one possible implementation, the method further includes: when the electricity price of the chiller unit is less than the standard price and the load of the terminal air conditioner is less than the preset load, controlling the chiller unit to operate at a second load in the preset load range; the second load is greater than the first load.

[0008] In one possible implementation, the method further includes: when the load of the terminal air conditioner is greater than the preset load, disconnecting the connection between the chiller and the cold storage tank, and opening the connection between the chiller and the terminal air conditioner.

[0009] According to a second aspect of the embodiments of this application, a chiller control device is provided, comprising an acquisition unit and a control unit; the acquisition unit is configured to acquire the load of a terminal air conditioner; the control unit is configured to control the chiller to operate at a first load within a preset load range when the load of the terminal air conditioner is less than a preset load; the acquisition unit is further configured to acquire the temperature at a target location; the target location is the position between the chiller and the terminal air conditioner, or the position between the chiller and the cold storage tank; the minimum load of the preset load range is greater than the preset load; the control unit is further configured to control the chiller, cooling water pump, and cooling tower to stop working when the temperature is less than a first preset temperature; the control unit is further configured to control the chiller, cooling water pump, and cooling tower to start working when the temperature is greater than a second preset temperature; the second preset temperature is greater than the first preset temperature.

[0010] In one possible implementation, the control unit of the above-mentioned chiller control device is further configured to: control the chiller, cooling water pump and cooling tower to stop working when the electricity price of the equipment to which the chiller belongs is greater than the standard price and the temperature is less than the third preset temperature; the third preset temperature is greater than the first preset temperature; control the chiller, cooling water pump and cooling tower to start working when the electricity price of the equipment to which the chiller belongs is less than or equal to the standard price and the temperature is greater than the fourth preset temperature; the fourth preset temperature is less than the second preset temperature and greater than the third preset temperature.

[0011] In one possible implementation, the control unit of the above-mentioned chiller control device is further configured to: control the chiller to operate at a second load in the preset load range when the electricity price of the equipment to which the chiller belongs is less than the standard price and the load of the terminal air conditioner is less than the preset load; the second load is greater than the first load.

[0012] In one possible implementation, the chiller control device further includes a processing unit; the processing unit is configured to disconnect the chiller from the cold storage tank and open the connection between the chiller and the cold storage tank when the load of the terminal air conditioner is greater than the preset load.

[0013] According to a third aspect of the embodiments of this application, an electronic device is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute instructions to implement the method of the first aspect described above and any possible implementation thereof.

[0014] According to a fourth aspect of the embodiments of this application, a computer-readable storage medium is provided, which, when the instructions in the computer-readable storage medium are executed by a processor of an electronic device, enables the electronic device to perform the methods of the first aspect and any possible implementation thereof.

[0015] According to a fifth aspect of the embodiments of this application, a computer program product is provided, the computer program product including computer instructions, which, when executed on an electronic device, cause the electronic device to perform the method described in the first aspect and any possible implementation thereof.

[0016] The technical solution of the first aspect provided by the embodiments of this application has at least the following beneficial effects:

[0017] The technical solution provided in this application obtains the load of the terminal air conditioner; when the load of the terminal air conditioner is less than a preset load, the chiller is controlled to operate at a first load within the preset load range, and the temperature at the target location is obtained; when the temperature is less than a first preset temperature, the chiller, cooling water pump, and cooling tower are controlled to stop working; when the temperature is greater than a second preset temperature, the chiller, cooling water pump, and cooling tower are controlled to start working; the second preset temperature is greater than the first preset temperature. In this way, by controlling the chiller to operate at the first load, the chiller can continuously operate within a high-efficiency range, and the surge problem caused by prolonged low-load operation of the chiller can be avoided. Furthermore, controlling the chiller, cooling water pump, and cooling tower to stop working when the temperature is less than the first preset temperature can reduce the waste of electrical resources. And controlling the chiller, cooling water pump, and cooling tower to start working when the temperature is greater than the second preset temperature can ensure that the chiller normally meets the cooling needs of the terminal air conditioner, avoiding any impact on user experience.

[0018] It should be noted that the technical effects of any of the implementation methods in aspects two through five can be found in the technical effects of the corresponding implementation methods in aspect one, and will not be repeated here.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application, and do not constitute an undue limitation of this application.

[0021] Figure 1 This is a schematic diagram of the structure of a chiller control system according to an exemplary embodiment;

[0022] Figure 2This is a schematic diagram of a central air conditioning control system according to an exemplary embodiment.

[0023] Figure 3 This is a flowchart illustrating a chiller control method according to an exemplary embodiment;

[0024] Figure 4 This is a flowchart illustrating yet another chiller control method according to an exemplary embodiment;

[0025] Figure 5 This is a flowchart illustrating yet another chiller control method according to an exemplary embodiment;

[0026] Figure 6 This is a flowchart illustrating yet another chiller control method according to an exemplary embodiment;

[0027] Figure 7 This is a block diagram illustrating a chiller control device according to an exemplary embodiment;

[0028] Figure 8 This is a block diagram illustrating an electronic device according to an exemplary embodiment. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0030] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0031] Before providing a detailed introduction to the resource deployment method provided in this application, let's first briefly introduce the application scenarios involved in this application.

[0032] In the field of air conditioning technology, chillers are mainly used to provide cooling for air conditioners. When the air conditioner's load is low, the chiller's load is also low.

[0033] In related technologies, when a chiller operates under low-load conditions for an extended period of time, the compressor in the chiller will experience surge, and the chiller's operating efficiency will also be low.

[0034] To address the aforementioned problems, this application proposes a chiller control method. This method involves acquiring the load of the terminal air conditioners; when the load of the terminal air conditioners is less than a preset load, controlling the chiller to operate at a first load within the preset load range, and acquiring the temperature at a target location; the target location is either between the chiller and the terminal air conditioners, or between the chiller and the cold storage tank; the minimum load within the preset load range is greater than the preset load; when the temperature is lower than a first preset temperature, controlling the chiller, cooling water pump, and cooling tower to stop operating; when the temperature is higher than a second preset temperature, controlling the chiller, cooling water pump, and cooling tower to start operating; the second preset temperature is higher than the first preset temperature. By controlling the chiller to operate at the first load, the chiller can continuously operate within a high-efficiency range, and the surge problem caused by prolonged low-load operation of the chiller can be avoided. Furthermore, controlling the chiller, cooling water pump, and cooling tower to stop operating when the temperature is lower than the first preset temperature can reduce the waste of electrical resources. Furthermore, when the temperature exceeds the second preset temperature, the chiller, cooling water pump, and cooling tower are activated to ensure that the chiller can meet the cooling requirements of the terminal air conditioners and avoid affecting the user's experience.

[0035] Before providing a detailed description of the chiller control method provided in this application, a brief introduction to the implementation environment (implementation architecture) involved in this application will be given.

[0036] The chiller unit 12 control method provided in this application embodiment can be applied to the chiller unit 12 control system. Figure 1 A schematic diagram of one structure of the control system of the chiller unit 12 is shown. For example... Figure 1 As shown, the control system 10 of the chiller 12 includes electronic equipment 11, a chiller 12, a cooling water pump 13, a cooling tower 14, a chilled water pump 15, a cold storage tank 16, a terminal air conditioner 17, a first electric valve 18, a second electric valve 19, a thermometer 110, and a cold storage tank supply water thermometer 111. The cooling tower 14 is connected to the cooling water pump 13 via a pipe, the cooling water pump 13 is connected to the chiller 12 via a pipe, and the chiller 12 is connected to the cooling tower 14 via a pipe, together forming a cooling water circulation system. The chiller 12 is connected to the chilled water pump 15 via a pipe, the chilled water pump 15 is connected to the terminal air conditioner 17 via a pipe, and the terminal air conditioner 17 is connected to the chiller 12 via a pipe, forming a chilled water circulation system. The cold storage tank 16 is connected in parallel between the pipes of the chiller 12 and the terminal air conditioner 17, and is equipped with a first electric valve 18 and a second electric valve 19. Normally, the first electric valve 18 is normally open, and the second electric valve 19 is normally closed.

[0037] Electronic device 11 is connected to chiller 12, cooling water pump 13, cooling tower 14, chilled water pump 15, cold storage tank 16, terminal air conditioner 17, first electric valve 18, second electric valve 19, thermometer 110 and cold storage tank water supply thermometer 111 by wired or wireless connection.

[0038] Electronic device 11 can be used to interact with terminal air conditioner 17, for example, to obtain the load of terminal air conditioner 17 from terminal air conditioner 17.

[0039] Furthermore, the electronic device 11 is also used to control the chiller 12 to operate at the first load in the preset load range when the load of the terminal air conditioner 17 is less than the preset load, and to obtain the temperature at the target location; the target location is the position between the chiller 12 and the terminal air conditioner 17, or the position between the chiller 12 and the cold storage tank 16; the minimum load of the preset load range is greater than the preset load.

[0040] Electronic device 11 is also used to control the chiller 12, cooling water pump 13 and cooling tower 14 to stop working when the temperature is lower than the first preset temperature.

[0041] Electronic device 11 is also used to control the chiller 12, cooling water pump 13 and cooling tower 14 to start working when the temperature is greater than the second preset temperature; the second preset temperature is greater than the first preset temperature.

[0042] Optionally, the electronic device 11 is a central air conditioning controller. For example... Figure 2 As shown, Figure 2 This is a schematic diagram of a central air conditioning control system. The central air conditioning controller can acquire the chilled water supply temperature and the water supply temperature of the cold storage tank 16, and can control the on / off operation of the chiller unit 12, cooling water pump 13, cooling tower 14, first electric valve 18, and second electric valve 19. The central air conditioning controller also includes a timer.

[0043] Optionally, the aforementioned electronic devices can also achieve the same functions through virtual machines (VMs) deployed on physical machines.

[0044] In the following embodiments provided in this application, the electronic device is used as an example for illustration.

[0045] For ease of understanding, the chiller control method provided in this application will be described in detail below with reference to the accompanying drawings.

[0046] Figure 3This is a flowchart illustrating a chiller control method according to an exemplary embodiment. This method can be applied to electronic devices, or to chiller control devices connected to or located within electronic devices. The following description uses the application of this method to an electronic device as an example to illustrate the method. Figure 3 As shown, the chiller control method includes the following steps:

[0047] S201. Electronic equipment acquires the load of the terminal air conditioner.

[0048] Terminal air conditioners are the terminal equipment of a central air conditioning system, including fans, silencers, valves, and air vents. The load of a terminal air conditioner is the ratio of its actual power to its rated power.

[0049] As one possible implementation, electronic devices obtain the load of the terminal air conditioner from the operating data of the terminal air conditioner.

[0050] S202. When the load of the terminal air conditioner is less than the preset load, the electronic device controls the chiller to operate at the first load in the preset load range and obtains the temperature at the target location.

[0051] The target location is either between the chiller and the terminal air conditioner, or between the chiller and the cold storage tank; the minimum load of the preset load range is greater than the preset load.

[0052] As one possible implementation, when the load on the terminal air conditioner is less than the preset load, the electronic equipment controls the chiller to operate at the first load within the preset load range. The temperature at the target location is then obtained by collecting data from a thermometer.

[0053] It should be noted that when the load of the terminal air conditioner is less than the preset load, the chiller will operate at a low load and its operating efficiency will be lower.

[0054] The temperature at the target location is the temperature of the chilled water.

[0055] The preset load range is the efficient operating range of the chiller. When the chiller operates at the first load within the preset load range, it can operate efficiently and avoid surge problems.

[0056] For example, the preset load range is 50%-70%, and the first load is 60%.

[0057] S203. When the temperature is lower than the first preset temperature, the electronic equipment controls the chiller, cooling water pump and cooling tower to stop working.

[0058] As one possible implementation, when the temperature is lower than the first preset temperature, the electronic equipment sends a stop operation command to the chiller, cooling water pump and cooling tower respectively, so as to control the chiller, cooling water pump and cooling tower to stop working.

[0059] For example, when the temperature is below 7 degrees Celsius, the electronic equipment sends stop operation commands to the chiller, cooling water pump and cooling tower respectively, so as to control the chiller, cooling water pump and cooling tower to stop working.

[0060] Understandably, when the temperature is below 7 degrees Celsius, the water supply temperature of the chilled water storage tank can meet the cooling requirements of the terminal air conditioning units. Controlling the chiller, cooling water pump, and cooling tower to stop working can effectively avoid wasting electrical resources and improve the operating efficiency of the chiller.

[0061] S204. When the temperature is higher than the second preset temperature, the electronic equipment controls the chiller, cooling water pump and cooling tower to start working.

[0062] The second preset temperature is greater than the first preset temperature.

[0063] As one possible implementation, when the temperature exceeds the second preset temperature, the electronic equipment sends start-up commands to the chiller, cooling water pump, and cooling tower respectively to control the chiller, cooling water pump, and cooling tower to start working.

[0064] For example, when the temperature is greater than 22 degrees, the electronic equipment sends start-up commands to the chiller, cooling water pump and cooling tower respectively to control the chiller, cooling water pump and cooling tower to start working.

[0065] Understandably, when the temperature exceeds 22 degrees Celsius, the water supply temperature of the chilled water storage tank cannot meet the cooling requirements of the terminal air conditioning units. Activating the chiller, cooling water pump, and cooling tower ensures that the cooling needs of the terminal air conditioning units are met.

[0066] Understandably, the technical solution provided in this application obtains the load of the terminal air conditioner; when the load of the terminal air conditioner is less than a preset load, it controls the chiller to operate at a first load within the preset load range and obtains the temperature at the target location; when the temperature is less than a first preset temperature, it controls the chiller, cooling water pump, and cooling tower to stop working; when the temperature is greater than a second preset temperature, it controls the chiller, cooling water pump, and cooling tower to start working; the second preset temperature is greater than the first preset temperature. In this way, by controlling the chiller to operate at the first load, the chiller can continuously operate within a high-efficiency range, and it can also avoid the surge problem caused by prolonged low-load operation of the chiller. Furthermore, controlling the chiller, cooling water pump, and cooling tower to stop working when the temperature is less than the first preset temperature can reduce the waste of electrical resources. And controlling the chiller, cooling water pump, and cooling tower to start working when the temperature is greater than the second preset temperature can ensure that the chiller normally meets the cooling needs of the terminal air conditioner, avoiding any impact on user experience.

[0067] In some embodiments, such as Figure 4 As shown in the embodiment of this application, the chiller control method further includes the following steps:

[0068] S301. When the electricity price of the chiller unit is greater than the standard price and the temperature is lower than the third preset temperature, the electronic equipment controls the chiller unit, cooling water pump and cooling tower to stop working.

[0069] The third preset temperature is greater than the first preset temperature.

[0070] It should be noted that when the electricity price is at its peak or peak, the electricity price for the chiller unit is higher than the standard price.

[0071] For example, the peak electricity price period is from 8:00 to 18:00 every day, and the peak electricity price period is from 18:00 to 22:00 every day. The electricity price during the peak period is 0.6 yuan / kWh, the electricity price during the peak period is 0.65 yuan / kWh, and the standard price is 0.5 yuan / kWh.

[0072] If the temperature is below 12 degrees Celsius during the period from 8:00 to 22:00, the electronic equipment will control the chiller, cooling water pump and cooling tower to stop working.

[0073] S302. When the electricity price of the chiller unit is less than or equal to the standard price and the temperature is greater than the fourth preset temperature, the electronic equipment controls the chiller unit, cooling water pump and cooling tower to start working.

[0074] The fourth preset temperature is less than the second preset temperature but greater than the third preset temperature.

[0075] It should be noted that when the electricity price is normal, the electricity price for the chiller unit is the standard price; when the electricity price is low, the electricity price for the chiller unit is lower than the standard price.

[0076] For example, the period from 22:00 to 5:00 is the off-peak electricity price, and the period from 5:00 to 8:00 is the normal electricity price. The normal electricity price is 0.5 yuan / kWh, and the off-peak electricity price is 0.3 yuan / kWh.

[0077] If the temperature is greater than 17 degrees Celsius during the period from 22:00 to 8:00, the electronic equipment will control the chiller, cooling water pump and cooling tower to start working.

[0078] Understandably, the technical solution provided in this application controls the chiller, cooling water pump, and cooling tower to stop working when the electricity price of the equipment to which the chiller belongs is greater than the standard price and the temperature is lower than the third preset temperature. When the electricity price of the equipment to which the chiller belongs is less than or equal to the standard price and the temperature is greater than the fourth preset temperature, the chiller, cooling water pump, and cooling tower are controlled to start working. Thus, when the electricity price is greater than the standard price, since the third preset temperature is higher than the first preset temperature, the start-up time of the chiller can be appropriately delayed, reducing expenses. When the electricity price is less than or equal to the standard price, since the fourth preset temperature is lower than the third preset temperature, the chiller can start earlier, taking advantage of the electricity price to store energy in advance, resulting in better economic efficiency.

[0079] In some embodiments, such as Figure 5 As shown in the embodiment of this application, the chiller control method further includes the following steps:

[0080] S401. When the electricity price of the equipment to which the chiller belongs is less than the standard price, and the load of the terminal air conditioner is less than the preset load, the electronic equipment controls the chiller to operate at the second load in the preset load range.

[0081] The second load is greater than the first load.

[0082] For example, if the load of the terminal air conditioner is less than the preset load during the period from 22:00 to 5:00, the electronic device controls the chiller to operate at 65% load.

[0083] Understandably, in the technical solution provided in this application, when the electricity price of the chiller unit is lower than the standard price and the load of the terminal air conditioner is lower than the preset load, the electronic equipment controls the chiller unit to operate at the second load within the preset load range. Thus, since the second load is greater than the first load, appropriately increasing the load of the chiller unit when the electricity price is lower than the standard price allows the advantage of lower electricity prices to be utilized, enabling the cold storage tank to store more energy for cooling the terminal air conditioners, thereby reducing expenses.

[0084] In some embodiments, such as Figure 6 As shown in the embodiment of this application, the chiller control method further includes the following steps:

[0085] S501. When the load of the terminal air conditioner is greater than the preset load, the electronic device disconnects the connection between the chiller and the cold storage tank and opens the connection between the chiller and the terminal air conditioner.

[0086] As one possible implementation, when the load of the terminal air conditioner exceeds the preset load, the electronic device closes the first electric valve and opens the second electric valve.

[0087] Understandably, the technical solution provided in this application involves disconnecting the chiller from the cold storage tank and opening the connection between the chiller and the terminal air conditioner when the load of the terminal air conditioner exceeds a preset load. This allows the chiller to operate in a high-efficiency range when the load of the terminal air conditioner is less than the preset load. By disconnecting the chiller from the cold storage tank and opening the connection between the chiller and the terminal air conditioner, the chiller can directly power the terminal air conditioner, shortening the transmission path and avoiding energy loss.

[0088] The above primarily describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, the chiller control device or electronic device includes corresponding hardware structures and / or software modules for performing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0089] This application embodiment can, according to the above method, exemplarily divide the chiller control device or electronic device into functional modules. For example, the chiller control device or electronic device may include functional modules corresponding to each functional division, or two or more functions may be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division; in actual implementation, there may be other division methods.

[0090] For example, this application also provides a chiller control device.

[0091] In some embodiments, Figure 7 This is a block diagram illustrating a chiller control device according to an exemplary embodiment. (Refer to...) Figure 7 The chiller control unit 600 includes an acquisition unit 601 and a control unit 602.

[0092] The acquisition unit 601 is used to acquire the load of the terminal air conditioner.

[0093] The control unit 602 is used to control the chiller to operate at the first load in the preset load range when the load of the terminal air conditioner is less than the preset load.

[0094] The acquisition unit 601 is also used to acquire the temperature at the target location; the target location is the location between the chiller and the terminal air conditioner, or the location between the chiller and the cold storage tank; the minimum load of the preset load range is greater than the preset load.

[0095] The control unit 602 is also used to control the chiller, cooling water pump and cooling tower to stop working when the temperature is lower than the first preset temperature.

[0096] The control unit 602 is also used to control the chiller, cooling water pump and cooling tower to start working when the temperature is greater than the second preset temperature; the second preset temperature is greater than the first preset temperature.

[0097] Optional, such as Figure 7 As shown, the control unit 602 provided in this embodiment is further used for:

[0098] When the electricity price of the equipment to which the chiller belongs is greater than the standard price and the temperature is less than the third preset temperature, the chiller, cooling water pump and cooling tower are controlled to stop working; the third preset temperature is greater than the first preset temperature.

[0099] When the electricity price of the equipment to which the chiller belongs is less than or equal to the standard price, and the temperature is greater than the fourth preset temperature, the chiller, cooling water pump and cooling tower are controlled to start working; the fourth preset temperature is less than the second preset temperature and greater than the third preset temperature.

[0100] Optional, such as Figure 7 As shown, the control unit 602 provided in this embodiment is further used for:

[0101] When the electricity price of the equipment to which the chiller belongs is less than the standard price, and the load of the terminal air conditioner is less than the preset load, the chiller is controlled to operate at the second load in the preset load range; the second load is greater than the first load.

[0102] Optional, such as Figure 7 As shown, the chiller control device 600 provided in this embodiment of the application further includes a processing unit 603.

[0103] The processing unit 603 is used to disconnect the chiller from the cold storage tank and open the connection between the chiller and the terminal air conditioner when the load of the terminal air conditioner is greater than the preset load.

[0104] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0105] Figure 8 This is a block diagram illustrating an electronic device according to an exemplary embodiment. Figure 8 As shown, the electronic device 700 includes, but is not limited to, a processor 701 and a memory 702.

[0106] The aforementioned memory 702 is used to store the executable instructions of the processor 701. It is understood that the processor 701 is configured to execute instructions to implement the chiller control method in the above embodiments.

[0107] It should be noted that those skilled in the art will understand that Figure 8 The electronic device structure shown does not constitute a limitation on the electronic device; the electronic device may include, but is not limited to, other electronic devices. Figure 8 This may indicate more or fewer components, or combinations of certain components, or different component arrangements.

[0108] Processor 701 is the control center of the electronic device. It connects various parts of the electronic device via various interfaces and lines. By running or executing software programs and / or modules stored in memory 702, and by calling data stored in memory 702, it performs various functions and processes data, thereby providing overall monitoring of the electronic device. Processor 701 may include one or more processing units. Optionally, processor 701 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into processor 701.

[0109] The memory 702 can be used to store software programs and various data. The memory 702 may primarily include a program storage area and a data storage area. The program storage area may store the operating system, application programs required by at least one functional module (such as a determination unit, processing unit, etc.), etc. Furthermore, the memory 702 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0110] In an exemplary embodiment, a computer-readable storage medium including instructions is also provided, such as a memory 702 including instructions, which can be executed by a processor 701 of an electronic device 700 to implement the chiller control method in the above embodiments.

[0111] In actual implementation, Figure 7 The functions of the acquisition unit 601, control unit 602, and processing unit 603 can all be derived from... Figure 8 The processor 701 calls the computer program stored in the memory 702 to implement the process. The specific execution process can be found in the description of the chiller control method section in the previous embodiment, and will not be repeated here.

[0112] Optionally, the computer-readable storage medium may be a non-transitory computer-readable storage medium, such as a read-only memory (ROM), random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device.

[0113] In an exemplary embodiment, this application also provides a computer program product including one or more instructions, which can be executed by the processor 701 of an electronic device to complete the chiller control method in the above embodiments.

[0114] It should be noted that when one or more instructions in the computer-readable storage medium or computer program product are executed by the processor of the electronic device, they implement the various processes of the above-described chiller host control method embodiment and achieve the same technical effect as the above-described chiller host control method. To avoid repetition, they will not be described again here.

[0115] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0116] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another apparatus, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0117] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units; that is, it can be located in one place or distributed in multiple different locations. Some or all of the classified units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0118] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0119] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, essentially, or the part that contributes to the prior art, or a complete or partial classification of the technical solution, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0120] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for controlling a chiller unit, characterized in that, The method includes: Obtain the load of the terminal air conditioning units; When the load of the terminal air conditioner is less than the preset load, the chiller is controlled to operate at the first load in the high-efficiency operating range and the temperature at the target location is obtained; the target location is the position between the chiller and the terminal air conditioner, or the position between the chiller and the cold storage tank; the minimum load of the high-efficiency operating range is greater than the preset load; When the temperature is lower than the first preset temperature, the chiller, cooling water pump and cooling tower are controlled to stop working. When the temperature is greater than the second preset temperature, the chiller, the cooling water pump, and the cooling tower are controlled to start working; the second preset temperature is greater than the first preset temperature.

2. The method according to claim 1, characterized in that, The method further includes: When the electricity price of the equipment to which the chiller belongs is greater than the standard price, and the temperature is less than the third preset temperature, the chiller, the cooling water pump, and the cooling tower are controlled to stop working; the third preset temperature is greater than the first preset temperature. When the electricity price of the equipment to which the chiller belongs is less than or equal to the standard price, and the temperature is greater than the fourth preset temperature, the chiller, the cooling water pump, and the cooling tower are controlled to start working; the fourth preset temperature is less than the second preset temperature and greater than the third preset temperature.

3. The method according to claim 2, characterized in that, The method further includes: When the electricity price of the equipment to which the chiller belongs is less than the standard price, and the load of the terminal air conditioner is less than the preset load, the chiller is controlled to operate at the second load in the high-efficiency operating range; the second load is greater than the first load.

4. The method according to any one of claims 1-3, characterized in that, The method further includes: When the load of the terminal air conditioner exceeds the preset load, disconnect the connection between the chiller and the cold storage tank, and open the connection between the chiller and the terminal air conditioner.

5. A chiller control device, characterized in that, The device includes: an acquisition unit and a control unit; The acquisition unit is used to acquire the load of the terminal air conditioner; The control unit is used to control the chiller to operate at the first load in the high-efficiency operating range when the load of the terminal air conditioner is less than the preset load. The acquisition unit is further configured to acquire the temperature at a target location; the target location is the location between the chiller and the terminal air conditioner, or the location between the chiller and the cold storage tank; the minimum load of the high-efficiency operating range is greater than the preset load; The control unit is also used to control the chiller, cooling water pump and cooling tower to stop working when the temperature is lower than the first preset temperature; The control unit is further configured to control the chiller, the cooling water pump, and the cooling tower to start working when the temperature is greater than the second preset temperature; the second preset temperature is greater than the first preset temperature.

6. The apparatus according to claim 5, characterized in that, The control unit is also used for: When the electricity price of the chiller unit is greater than the standard price and the temperature is less than the third preset temperature, the chiller unit, the cooling water pump, and the cooling tower are controlled to stop working; the third preset temperature is greater than the first preset temperature. When the electricity price of the equipment to which the chiller belongs is less than or equal to the standard price, and the temperature is greater than the fourth preset temperature, the chiller, the cooling water pump, and the cooling tower are controlled to start working; the fourth preset temperature is less than the second preset temperature and greater than the third preset temperature.

7. The apparatus according to claim 6, characterized in that, The control unit is also used for: When the electricity price of the equipment to which the chiller belongs is less than the standard price, and the load of the terminal air conditioner is less than the preset load, the chiller is controlled to operate at the second load in the high-efficiency operating range; the second load is greater than the first load.

8. The apparatus according to any one of claims 5-7, characterized in that, The device further includes: a processing unit; The processing unit is used to disconnect the connection between the chiller and the cold storage tank and open the connection between the chiller and the terminal air conditioner when the load of the terminal air conditioner is greater than the preset load.

9. An electronic device, characterized in that, include: processor; Memory used to store the processor's executable instructions; The processor is configured to execute the instructions to implement the method as described in any one of claims 1 to 4.

10. A computer-readable storage medium, characterized in that, When the computer-executable instructions stored in the computer-readable storage medium are executed by the processor of the electronic device, the electronic device is capable of performing the method as described in any one of claims 1 to 4.

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