Refrigerator cooling water circulation control system and method

Abstract

The application provides a refrigerating machine cooling water circulation control system and method, relates to the technical field of refrigerating machines, and the refrigerating machine cooling water circulation control system comprises a first cooling loop and a second cooling loop. Cooling liquid can circulate in different cooling loops to perform heat exchange cooling on refrigeration objects. In addition, the cooling assembly comprises two refrigerating machines, and the cooling box group comprises two cooling boxes. When cooling the cooling liquid, the refrigerating machines and the cooling boxes can be used alternately, and the combination of the cooling boxes and the refrigerating machines can cool the cooling liquid in a faster manner. Through the cooperation of the two refrigerating machines and the two cooling boxes, the refrigerating machines can be prevented from being in an overload state on the basis of realizing uninterrupted cooling of the refrigeration objects, and the service life of the refrigerating machines can be prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of refrigerators, in particular to a refrigerator cooling water circulation control system and method. BACKGROUND

[0002] A refrigerator is one of commonly used industrial refrigeration cooling devices. The main working principle of the refrigerator is to cool the cooling liquid at normal temperature to a certain temperature through the compressor of the refrigeration module, and then to pass the low-temperature cooling liquid into the water cooling area of the industrial equipment to perform intensified cooling. There are three interrelated systems, namely, a refrigerant circulation system, a water circulation system and an electrical automatic control system, wherein the compressor is the core component of the entire refrigerant circulation system and the source of power for refrigerant compression. Its function is to convert the input electrical energy into mechanical energy and to compress the refrigerant to continuously generate cold energy. The water circulation system injects the cooling liquid into the refrigeration object to perform cooling, and the electrical automatic control system associates the refrigeration circulation system and the water circulation system to realize the automatic intelligent cooling of the refrigerator.

[0003] The cooling of the refrigeration object will be interrupted due to the excessively high temperature of the cooling liquid, affecting the production and the service life of the refrigerator. SUMMARY

[0004] The application provides a refrigerator cooling water circulation control system and method, which can realize the staged refrigeration of the refrigeration object and avoid the overloading of the refrigerator due to the excessively high temperature of the cooling liquid, thereby affecting the production and the service life of the equipment.

[0005] The application provides a refrigerator cooling water circulation control system, which comprises:

[0006] a first refrigeration circuit and a second refrigeration circuit;

[0007] The first refrigeration circuit comprises a first three-way valve, a second three-way valve, a cooling assembly, a third three-way valve and a refrigeration object cooling area connected in sequence through pipelines to form a loop; the cooling assembly comprises two refrigerators, namely, a first refrigerator and a second refrigerator; and the second three-way valve and the third three-way valve are used for splitting the cooling liquid to flow through the first refrigerator or the second refrigerator.

[0008] The second refrigeration circuit comprises a first three-way valve, a cooling box group, a second three-way valve, a cooling assembly, a third three-way valve and a refrigeration object cooling area connected in sequence through pipelines to form a loop; the first three-way valve is used for splitting the cooling liquid to flow through the first refrigeration circuit or the second refrigeration circuit; and the cooling box group comprises two cooling boxes, which are used for alternately performing natural cooling on the cooled cooling liquid.

[0009] The refrigerators in the cooling assembly cool the naturally cooled cooling liquid.

[0010] In an embodiment of the present application, the refrigeration machine cooling water circulation control system further comprises:

[0011] a third refrigeration circuit comprising a liquid inlet pipe, a cooling box group, a second three-way valve, a cooling assembly, a third three-way valve, a refrigeration object cooling area, a first three-way valve, and a liquid outlet pipe connected in sequence by pipes; the liquid inlet pipe is connected to a liquid supply device to provide new cooling liquid through the liquid inlet pipe, and the heat-exchanged cooling liquid is discharged through the liquid outlet pipe.

[0012] In an embodiment of the present application, the liquid outlet pipe is arranged at the bottom of the cooling box.

[0013] In an embodiment of the present application, a first circulating pump is arranged on the connecting pipe between the refrigeration object cooling area and the third three-way valve.

[0014] In an embodiment of the present application, a second circulating pump is arranged on the connecting pipe at the outlet end of the cooling box group.

[0015] In an embodiment of the present application, the refrigeration machine cooling water circulation control system further comprises:

[0016] a first temperature detection module for detecting the temperature at the outlet end of the refrigeration object cooling area, a second temperature detection module for detecting the temperature of each cooling box in the cooling box group, a third temperature detection module for detecting the temperature of the cooling water tank of the first refrigeration machine, and a fourth temperature detection module for detecting the temperature of the cooling water tank of the second refrigeration machine.

[0017] To achieve the above object and other related objects, the present application provides a refrigeration machine cooling water circulation control method applied to the refrigeration machine cooling water circulation control system provided in any of the embodiments described above, and the refrigeration machine cooling water circulation control method comprises:

[0018] obtaining a first cooling temperature, which is the temperature of the cooling water tank of the refrigeration machine that has been enabled in the cooling assembly;

[0019] when the first cooling temperature is greater than or equal to a first preset value, the refrigeration machine that has been enabled in the cooling assembly is turned off, and another refrigeration machine in the cooling assembly is enabled, so that the two refrigeration machines in the cooling assembly alternately refrigerate.

[0020] In an embodiment of the present application, the method further comprises:

[0021] the refrigeration machine that has been enabled alternately uses the cooling liquid in the two cooling boxes for refrigeration.

[0022] In an embodiment of the present application, the method further comprises:

[0023] obtaining a second cooling temperature, the second cooling temperature being a cooling water tank temperature of a non-enabled refrigerator in the cooling assembly;

[0024] when the second cooling temperature is greater than or equal to a second preset value and a difference between the first water tank temperature and the first preset value is less than or equal to a preset difference, injecting new cooling liquid into the first cooling tank through the liquid inlet pipe, discharging the cooling liquid circulating in the pipeline to a second cooling tank in the cooling tank group, and discharging the cooling liquid through the liquid outlet pipe connected to the second cooling tank;

[0025] delivering the new cooling liquid in the first cooling tank to the enabled refrigerator for cooling.

[0026] In an embodiment of the present application, the method further comprises:

[0027] when the first cooling temperature is less than the first preset value, the second cooling temperature is less than the first cooling temperature, the real-time temperature of the cooling area of the refrigeration object is greater than a third preset value, and the temperature change rate of the cooling area of the refrigeration object is greater than a fourth preset value, shutting down the enabled refrigerator in the cooling assembly and enabling another refrigerator in the cooling assembly.

[0028] As described above, the present application provides a refrigerator cooling water circulation control system and method, which has the following beneficial effects:

[0029] The present application provides a refrigerator cooling water circulation control system, which comprises a first cooling circuit and a second cooling circuit. The cooling liquid can circulate in different cooling circuits to exchange heat with the refrigeration object. In addition, the cooling assembly comprises two refrigerators, and the cooling tank group comprises two cooling tanks. When the cooling liquid is cooled, the refrigerators and the cooling tanks can be used alternately. The combination of the cooling tank and the refrigerator can cool the cooling liquid in a faster way. Through the cooperation of the two refrigerators and the two cooling tanks, the refrigerators can be prevented from being in an overload state, and the service life of the refrigerators can be improved.

[0030] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings incorporated into the specification and forming part of the specification, show embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings from these drawings without creative labor. In the drawings:

[0032] Figure 1is a structural schematic diagram of a refrigeration machine cooling water circulation control system according to an exemplary embodiment of the present application;

[0033] Figure 2 is a schematic diagram of cooling liquid flowing through a first cooling circuit according to an exemplary embodiment of the present application;

[0034] Figure 3 is a schematic diagram of cooling liquid flowing through a first cooling circuit according to another exemplary embodiment of the present application;

[0035] Figure 4 is a schematic diagram of cooling liquid flowing through a second cooling circuit according to an exemplary embodiment of the present application;

[0036] Figure 5 is a schematic diagram of cooling liquid flowing through a third cooling circuit according to an exemplary embodiment of the present application;

[0037] Figure 6 is a flow chart of a refrigeration machine cooling water circulation control method according to an exemplary embodiment of the present application.

[0038] Brief Description of the Drawings:

[0039] 101, first three-way valve; 102, second three-way valve; 103, cooling assembly; 1031, first refrigeration machine; 1032, second refrigeration machine; 104, third three-way valve; 105, refrigeration object cooling area; 106, cooling tank group; 107, liquid inlet pipe; 108, liquid outlet pipe; 109, first circulation pump; 110, second circulation pump; 111, first temperature detection module; 112, second temperature detection module; 113, third temperature detection module; 114, fourth temperature detection module; a, refrigeration module; b, heat exchange module; c, cooling water tank; d, water valve. DETAILED DESCRIPTION

[0040] Other advantages and effects of the present application can be easily understood by those skilled in the art from the above description of the embodiments of the present application. The present application can also be implemented or applied in other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, but not for limiting the protection scope of the present application.

[0041] It should be noted that the diagrams provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the diagrams, but not drawn according to the number, shape and size of the components in actual implementation. The type, number and ratio of the components in actual implementation can be arbitrarily changed, and the layout type of the components can be more complex.

[0042] In the following description, numerous specific details are discussed in order to provide a thorough explanation of the embodiments of the application. It will be apparent, however, to one skilled in the art, that the embodiments of the application can be practiced without these specific details. In other instances, well-known structures and devices are not described in detail in order to avoid obscuring the embodiments of the application.

[0043] Referring to Figure 1 , Figure 1 is a structural schematic diagram of a refrigeration machine cooling water circulation control system according to an example embodiment of the application. Referring to Figure 1 It can be seen that the refrigeration machine cooling water circulation control system can include:

[0044] a first refrigeration circuit and a second refrigeration circuit.

[0045] The first refrigeration circuit includes a first three-way valve 101, a second three-way valve 102, a cooling assembly 103, a third three-way valve 104, and a refrigeration object cooling area 105 connected in sequence through pipelines to form a loop; the cooling assembly 103 includes two refrigeration machines, namely a first refrigeration machine 1031 and a second refrigeration machine 1032; the second three-way valve 102 and the third three-way valve 104 are used to split the cooling liquid to flow through the first refrigeration machine 1031 or the second refrigeration machine 1032.

[0046] The second refrigeration circuit includes a first three-way valve 101, a cooling tank group 106, a second three-way valve 102, a cooling assembly 103, a third three-way valve 104, and a refrigeration object cooling area 105 connected in sequence through pipelines to form a loop; the first three-way valve 101 is used to split the cooling liquid to flow through the first refrigeration circuit or the second refrigeration circuit; the cooling tank group 106 includes two cooling tanks, which are used to alternately naturally cool the heat-exchanged cooling liquid.

[0047] Among them, the refrigeration machines in the cooling assembly 103 cool the naturally cooled cooling liquid.

[0048] In an embodiment of the present application, in the first refrigeration circuit, the first end of the first three-way valve 101 and the first end of the second three-way valve 102 are connected, the second end of the second three-way valve 102 and the inlet end of one of the cooling assemblies 103 are connected, the third end of the second three-way valve 102 and the inlet end of the other of the cooling assemblies 103 are connected, the outlet end of one of the cooling assemblies 103 and the first end of the third three-way valve 104 are connected, the outlet end of the other of the cooling assemblies 103 and the second end of the third three-way valve 104 are connected, the third end of the third three-way valve 104 and the inlet end of the refrigeration object cooling area 105 are connected, and the outlet end of the refrigeration object cooling area 105 and the second end of the first three-way valve 101 are connected.

[0049] In an embodiment of the present application, in the second refrigeration circuit, the third end of the first three-way valve 101 and the inlet end of the cooling tank group 106 are connected, the outlet end of the cooling tank and the first end of the second three-way valve 102 are connected, and the connection mode of the other equipment pipeline is consistent with the connection mode in the first refrigeration circuit, which will not be described here.

[0050] In addition, the outlet end pipeline of each cooling tank in the cooling tank group 106 can be provided with a water valve d, and when the water valve d is opened, the cooling liquid in the corresponding cooling tank can be circulated and cooled. The inlet end pipeline of each cooling tank in the cooling tank group 106 can be provided with a water valve d, and when the water valve d is opened, the heat-exchanged cooling liquid can be naturally cooled in the corresponding cooling tank.

[0051] It should be noted that, Figure 1 The arrow direction represents the flow direction of the cooling liquid. The cooling liquid can be water, ethylene glycol and its mixture, propylene glycol, mineral oil, or fluorinated liquid, etc.

[0052] In an embodiment of the present application, the refrigeration object can be an industrial equipment, which can include power generation equipment, chemical device, metal processing equipment, electronic equipment, or mechanical manufacturing, etc. In order to maintain the normal working temperature of the industrial equipment, improve the efficiency and prolong the service life, the cooling area for the cooling liquid is often arranged in the industrial equipment, and the refrigeration object cooling area 105 in the embodiment of the present application can be the cooling area of the industrial equipment.

[0053] In an embodiment of the present application, the refrigeration machine can rapidly cool the cooling liquid, and the refrigeration machine can include a refrigeration module a, a heat exchange module b, and a water tank. The refrigeration module a can include a compressor, and the heat exchange module b can be an evaporator.

[0054] The compressor is responsible for sucking in low-pressure and low-temperature gaseous refrigerant and compressing it into high-temperature and high-pressure gas through mechanical action. The high-temperature and high-pressure gaseous refrigerant exchanges heat with the external environment or cooling medium after entering the condenser, thereby releasing heat and gradually cooling down to become liquid. The liquid refrigerant from the condenser will rapidly decompress when passing through the expansion valve, resulting in a sharp drop in temperature, becoming a low-temperature and low-pressure liquid or gas-liquid mixture, ready to enter the evaporator. As the last link of the refrigeration cycle, the low-temperature and low-pressure refrigerant in the evaporator absorbs heat from the cooled object and evaporates into a gas. This process cools the cooled object, achieving the purpose of refrigeration. At the same time, the gaseous refrigerant returns to the compressor to start a new cycle. The water tank can be used to store cooling liquid, which is pumped into the condenser to help remove the heat of the refrigerant, and then returns to the water tank to be cooled again. This design helps to maintain stable operation of the system and effectively utilizes water resources.

[0055] Please refer to Figure 2 , which is a schematic diagram of the cooling liquid flowing through the first cooling circuit according to an exemplary embodiment of the present application. In Figure 2 , the direction of the arrow marked by the dashed line represents the flow direction of the cooling liquid. Referring to Figure 2 , it can be seen that when the cooling liquid flows through the first cooling circuit, one of the two refrigerators can be activated first to cool the cooling liquid, for example, the first refrigerator 1031 can be activated first to cool the cooling liquid, at this time the second refrigerator 1032 can cool the cooling liquid in its water tank, but the cooling liquid cooled by the second refrigerator 1032 does not circulate in the system. The cooling liquid cooled by the first refrigerator 1031 flows through the refrigeration object cooling area 105 and exchanges heat with the refrigeration object to cool the refrigeration object. Please refer to Figure 3 , which is a schematic diagram of the cooling liquid flowing through the first cooling circuit according to another exemplary embodiment of the present application. In Figure 3 , the direction of the arrow marked by the dashed line represents the flow direction of the cooling liquid. Referring to Figure 3 , it can be seen that when the refrigeration demand of the refrigeration object changes and requires more refrigeration capacity, or the temperature of the water tank of the first refrigerator 1031 has not been reduced to a usable temperature, the second refrigerator 1032 can be activated to cool the refrigeration object through the cooling liquid cooled by the second refrigerator 1032, and the use of the first refrigerator 1031 is suspended at this time. The first refrigerator 1031 can cool the cooling liquid in its water tank, but the cooling liquid cooled by the first refrigerator 1031 does not circulate in the system.

[0056] Please refer to Figure 4 , which is a schematic diagram of the cooling liquid flowing through the second cooling circuit according to an exemplary embodiment of the present application. In Figure 4 , the direction of the arrow marked by the dashed line represents the flow direction of the cooling liquid. Referring to Figure 4As can be seen, when the cooling liquid flows through the second cooling circuit, one of the two refrigerators can be used to cool the cooling liquid first, for example, the second refrigerator 1032 can be used to cool the cooling liquid first, and the cooled cooling liquid can be discharged to the first cooling tank (any cooling tank in the cooling tank group), and the cooling liquid in the second cooling tank is used for heat exchange circulation, and the second refrigerator 1032 cools the cooling liquid in the second cooling tank. By such arrangement, one of the two cooling tanks can be used to naturally cool the cooling liquid alternately. The cooled cooling liquid can be discharged to one cooling tank for natural cooling first, and the naturally cooled cooling liquid in the other cooling tank is used for rapid cooling by the refrigerator, which can accelerate the refrigeration speed of the refrigerator for the cooling liquid, and when the refrigeration demand of the refrigeration object is high, the phenomenon of overloading of the refrigerator can be avoided, and the service life of the refrigerator can be improved.

[0057] In an embodiment of the present application, the refrigerator cooling water circulation control system can further comprise a third refrigeration circuit comprising an inlet pipe 107, a cooling tank group 106, a second three-way valve 102, a cooling assembly 103, a third three-way valve 104, a refrigeration object cooling area 105, a first three-way valve 101, and a discharge pipe 108 connected in sequence by pipelines.

[0058] The inlet end of the inlet pipe 107 can be connected to a liquid supply device, the outlet end of the inlet pipe 107 can be connected to the inlet end of the cooling tank group 106, the outlet end of the refrigeration object cooling area 105 can be connected to the inlet end of the discharge pipe 108, and the outlet end of the discharge pipe 108 can be connected to a liquid storage device. The connection mode of other devices is consistent with that in the first refrigeration circuit, and will not be described here.

[0059] Please refer to Figure 5 which is a schematic diagram of the cooling liquid flowing through the third cooling circuit according to an exemplary embodiment of the present application. In Figure 5 , the arrow direction marked by the dashed line represents the flow direction of the cooling liquid. Please refer to Figure 5As can be seen, when the cooling liquid flows through the third cooling circuit, one of the two refrigerators can be first activated to cool the cooling liquid, for example, the second refrigerator 1032 can be first activated to cool the cooling liquid, the new cooling liquid provided by the liquid inlet pipe 107 can be cooled and then delivered to the cooling object cooling area 105 to cool the cooling object, and the heat-exchanged cooling liquid can be discharged from the system through the liquid outlet pipe 108. When the two refrigerators are alternately used for cooling, the new cooling liquid can be delivered to the two cooling tanks, the cooling liquid in the first cooling tank can be cooled by the second refrigerator 1032, the cooling liquid cooled by the second refrigerator 1032 can be cooled by the first refrigerator 1031 during the delivery process, and the heat-exchanged cooling liquid cooled by the second refrigerator 1032 can be cooled by the first refrigerator 1031 to cool the cooling object. By setting the refrigerators to cool the new cooling liquid, compared with cooling the circulating cooling liquid in the system, the cooling time of the cooling liquid by the refrigerator can be reduced, when the cooling demand of the cooling object is high, the two refrigerators and the two cooling tanks can be combined and alternately operated to improve the cooling speed of the cooling liquid, quickly reduce the temperature of the cooling liquid to the required temperature, reduce the cooling time of the cooling liquid, avoid overloading of the refrigerator, and also achieve uninterrupted cooling of the cooling object.

[0060] In an embodiment of the present application, the liquid outlet pipe 108 is arranged at the bottom of the cooling tank. By arranging the liquid outlet pipe 108 at the bottom of the cooling tank, the cooling liquid can be first collected in one cooling tank, and when it is necessary to discharge the cooling liquid, the cooling liquid can be discharged from the cooling tank by gravity, and new cooling liquid can be injected into another cooling tank through the liquid inlet pipe 107. The liquid outlet pipe 108 can be provided with a water valve d, and the cooling liquid can be discharged from the cooling tank when the water valve d is opened.

[0061] In another possible implementation, a fourth three-way valve can be connected to the third end connecting pipe of the first three-way valve 101, the first end of the fourth three-way valve can be connected to the third end of the first three-way valve 101, the second end of the fourth three-way valve can be connected to the inlet end of the cooling tank group 106, and the third end of the fourth three-way valve can be connected to the liquid outlet pipe 108. By such arrangement, the discharge of the cooling liquid can be facilitated, the new cooling liquid can be directly introduced into the cooling tank through the liquid inlet pipe 107, and the heat-exchanged cooling liquid can be directly discharged through the liquid outlet pipe 108, so that the circulation of the cooling liquid can be accelerated.

[0062] In an embodiment of the present application, the connection pipe between the cooling object cooling area 105 and the third three-way valve 104 is provided with a first circulating pump 109.

[0063] In an embodiment of the present application, the second circulating pump 110 is arranged on the connecting pipeline at the outlet end of the cooling box group 106.

[0064] It should be noted that the circulating pump can be used to increase the pressure of the refrigeration machine cooling water circulation control system to drive the cooling liquid to circulate in each cooling circuit and ensure that the temperature of the refrigeration object is within an appropriate temperature range.

[0065] When the refrigeration machine (including the first refrigeration machine 1031 and the second refrigeration machine 1032) and the circulating pump (including the first circulating pump 109 and the second circulating pump 110) are working, the refrigeration machine and the circulating pump are working at the optimal power. The refrigeration machine and the circulating pump can be adjusted within their respective optimal operating power ranges. The optimal operating power range of the circulating pump can be 80% to 100% of the rated power, and the optimal operating power range of the refrigeration machine can be 70% to 100% of the rated power.

[0066] In an embodiment of the present application, the refrigeration machine cooling water circulation control system can further include a first temperature detection module 111 for detecting the temperature at the outlet end of the refrigeration object cooling area 105, a second temperature detection module 112 for detecting the temperature of each cooling box in the cooling box group 106, a third temperature detection module 113 for detecting the temperature of the cooling water tank c of the first refrigeration machine 1031, and a fourth temperature detection module 114 for detecting the temperature of the cooling water tank c of the second refrigeration machine 1032.

[0067] The temperature detection module can be a temperature sensor or a thermal imager. When the temperature detection module is a temperature sensor, the first temperature detection module 111 can be arranged on the pipeline at the outlet end of the refrigeration object cooling area 105, the number of second temperature detection modules 112 can correspond to the number of cooling boxes, and the second temperature detection modules 112 can be arranged on the surface of each cooling box. The third temperature detection module 113 can be arranged on the surface of the cooling water tank c of the first refrigeration machine 1031, and the fourth temperature detection module 114 can be arranged on the surface of the cooling water tank c of the second refrigeration machine 1032.

[0068] Detecting the temperature of the refrigeration machine cooling water circulation control system can facilitate control of the refrigeration machine cooling water circulation control system, so that each cooling circuit and refrigeration machine can be switched when the temperature meets the preset conditions, and the refrigeration object can be cooled by the corresponding cooling circuit and refrigeration machine.

[0069] Figure 6 is a flow chart of a refrigeration machine cooling water circulation control method according to an exemplary embodiment of the present application. The refrigeration machine cooling water circulation control method can be applied to the refrigeration machine cooling water circulation control system provided in any of the above embodiments. As shown in Figure 6 the exemplary refrigeration machine cooling water circulation control method includes:

[0070] Step S610, obtaining a first cooling temperature.

[0071] The first cooling temperature is the temperature of the cooling water tank of the enabled chiller in the cooling assembly.

[0072] In an embodiment of the present application, the first cooling temperature can be obtained by a second temperature detection module arranged on the surface of the cooling water tank of the chiller.

[0073] Step S620, when the first cooling temperature is greater than or equal to a first preset value, the enabled chiller in the cooling assembly is turned off, and another chiller in the cooling assembly is enabled, so that the two chillers in the cooling assembly are alternately used for refrigeration.

[0074] In an embodiment of the present application, when the first cooling temperature is greater than or equal to a first preset value, the enabled chiller in the cooling assembly is turned off, and another chiller in the cooling assembly is enabled, so that the two chillers in the cooling assembly are alternately used for refrigeration.

[0075] In a possible implementation, the enabled chiller can use the cooling liquid circulating in the chiller cooling water circulation control system for refrigeration.

[0076] In another possible implementation, the enabled chiller alternately uses the cooling liquid in the two cooling tanks for refrigeration.

[0077] For example, the other chiller in the cooling assembly can be a second chiller, the cooling liquid in the first cooling tank can be delivered to the second chiller for cooling, the cooled cooling liquid of the second chiller can be delivered to the cooling area of the refrigeration object to cool the refrigeration object, and the cooled cooling liquid in the cooling area of the refrigeration object can be discharged to the first cooling tank for natural cooling. While cooling the refrigeration object, the cooling liquid in the second cooling tank can be delivered to the second chiller to realize the alternately use of the chillers and the alternately use of the cooling tanks, so as to improve the cooling speed, reduce the probability of overloading of the chiller, and improve the service life of the chiller.

[0078] In an embodiment, the chiller cooling water circulation control method provided by the embodiment of the present application can further include steps S710 to S730.

[0079] Step S710, obtaining a second cooling temperature.

[0080] The second cooling temperature is the temperature of the cooling water tank of the disabled chiller in the cooling assembly.

[0081] In an embodiment of the present application, the second cooling temperature can be obtained by a second temperature detection module arranged on the surface of the cooling water tank of the chiller.

[0082] Step S720, when the second cooling temperature is greater than or equal to the second preset value, and the difference between the first water tank temperature and the first preset value is less than or equal to the preset difference, injecting new cooling liquid into the first cooling tank through the liquid inlet pipe, discharging the circulating cooling liquid in the pipeline to the second cooling tank in the cooling tank group, and discharging through the liquid outlet pipe connected to the second cooling tank.

[0083] In an embodiment of the present application, when the second cooling temperature is greater than or equal to the second preset value, and the difference between the first water tank temperature and the first preset value is less than or equal to the preset difference, it indicates that the enabled refrigerator has failed to cool the cooling liquid to the required temperature in a short time, and even if the disabled refrigerator is enabled, the cooling demand of the refrigeration object cannot be met. At this time, new cooling liquid can be injected into the first cooling tank through the liquid inlet pipe, the circulating cooling liquid in the pipeline is discharged to the second cooling tank in the cooling tank group, and is discharged through the liquid outlet pipe connected to the second cooling tank. In this way, the cooling liquid after the refrigeration of the refrigerator can meet the cooling demand of the refrigeration object. The first cooling tank is any one of the two cooling tanks, and the second cooling tank is the other one of the two cooling tanks.

[0084] Step S730, delivering the new cooling liquid in the first cooling tank to the enabled refrigerator for cooling.

[0085] In an embodiment of the present application, the new cooling liquid in the first cooling tank can be delivered to the enabled refrigerator for cooling. The new cooling liquid has a lower temperature than the heat-exchanged cooling liquid, which can improve the cooling speed of the refrigerator.

[0086] In an embodiment, the refrigerator cooling water circulation control method can further include: when the first cooling temperature is less than the first preset value, the second cooling temperature is less than the first cooling temperature, the real-time temperature of the refrigeration object cooling area is greater than the third preset value, and the temperature change rate of the refrigeration object cooling area is greater than the fourth preset value, closing the enabled refrigerator in the cooling assembly, and enabling another refrigerator in the cooling assembly.

[0087] For example, Tn is the temperature of the refrigeration object at the nth moment, Tn-1 is the temperature of the refrigeration object at the (n-1)th moment, and Δt is the time difference between the nth moment and the (n-1)th moment. Then the temperature change rate V of the refrigeration object is Tn = (Tn-Tn-1) / Δt.

[0088] The third preset value can be 55℃, the fourth preset value can be 0, the first preset value can be 45℃, the second preset value can be 30℃, in the current state, the water tank of the enabled refrigerator is connected to the refrigeration object to perform the cooling work, the temperature of the water tank of the enabled refrigerator is 38.8℃, the temperature of the water tank of the disabled refrigerator is 33.2℃, which is less than 38.8℃, the real-time temperature of the refrigeration object is detected to be 55.6℃, which is greater than the third preset value 55℃, and the temperature change rate V of the refrigeration object is 0.14, which is greater than the fourth preset value, indicating that the refrigeration object cannot be controlled in the preset temperature range by continuing to use the enabled refrigerator to cool the refrigeration object, and the refrigeration object can be switched to be cooled by the disabled refrigerator to quickly reduce the temperature of the refrigeration object to the preset temperature range for normal work, so as to avoid affecting the normal work and production of the refrigeration object. Tn For 0.14 greater than the fourth preset value, it indicates that the refrigeration object cannot be controlled in the preset temperature range by continuing to use the enabled refrigerator to cool the refrigeration object, and the refrigeration object can be switched to be cooled by the disabled refrigerator to quickly reduce the temperature of the refrigeration object to the preset temperature range for normal work, so as to avoid affecting the normal work and production of the refrigeration object.

[0089] Embodiments of the present application also provide an electronic device, comprising: one or more processors; a storage device for storing one or more programs, when the one or more programs are executed by the one or more processors, the electronic device implements the refrigerator cooling water circulation control method provided in each of the above embodiments.

[0090] Another aspect of the present application also provides a computer readable storage medium, which stores a computer program, when the computer program is executed by a processor of a computer, the computer executes the refrigerator cooling water circulation control method provided in each of the above embodiments. The computer readable storage medium can be included in the electronic device described in the above embodiments, or can exist separately and not be assembled into the electronic device.

[0091] Another aspect of the present application also provides a computer program product or a computer program, which comprises computer instructions stored in a computer readable storage medium. The processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions, so that the computer device executes the refrigerator cooling water circulation control method provided in each of the above embodiments.

[0092] In the embodiments of the present application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. Throughout the specification and claims, "comprising" and "including" are open terms, which should be interpreted as "including but not limited to".

[0093] The above embodiments are only illustrative of the principles of the present application and its effects, and are not intended to limit the present application. Any modification or change made by any person skilled in the art without departing from the spirit and scope of the present application shall be covered by the claims of the present application.

Claims

1. A method for controlling cooling water circulation of a refrigerator, characterized in that: Applied to the cooling water circulation control system of a refrigerator, the cooling water circulation control system of the refrigerator comprises: a first refrigeration circuit, a second refrigeration circuit, and a third refrigeration circuit; The first refrigeration circuit includes a first three-way valve, a second three-way valve, a cooling assembly, a third three-way valve, a cooling zone for a refrigerated object, and the first three-way valve, which are sequentially connected by pipes to form a loop; the cooling assembly includes two refrigerators, namely a first refrigerator and a second refrigerator, and the second three-way valve and the third three-way valve are used to divert the coolant so that the coolant flows through the first refrigerator or the second refrigerator; The second refrigeration circuit includes a first three-way valve, a cooling box group, a second three-way valve, a cooling assembly, a third three-way valve, a cooling area for a refrigerated object, and a first three-way valve, which are sequentially connected by pipes to form a loop; the first three-way valve is used to divert the coolant so that the coolant flows through the first refrigeration circuit or the second refrigeration circuit; the cooling box group includes two cooling boxes, and the two cooling boxes are used to alternately naturally cool the coolant after heat exchange; Wherein, the refrigerator in the cooling assembly cools the coolant after natural cooling; The third refrigeration circuit includes a liquid inlet pipe, a cooling tank group, a second three-way valve, a cooling assembly, a third three-way valve, a cooling zone for the refrigerated object, a first three-way valve, and a liquid discharge pipe, which are sequentially connected by pipelines; the inlet end of the liquid inlet pipe is connected to the liquid supply device, and the outlet end of the liquid inlet pipe is connected to the inlet end of the cooling tank group so that new coolant is supplied through the liquid inlet pipe, and the coolant after heat exchange is discharged through the liquid discharge pipe; The refrigerator cooling water circulation control method comprises: Acquire a first cooling temperature, where the first cooling temperature is a cooling water tank temperature of an enabled refrigerator in a cooling assembly; When the first cooling temperature is greater than or equal to a first preset value, turning off the enabled refrigerator in the cooling assembly and enabling another refrigerator in the cooling assembly, so that the two refrigerators in the cooling assembly alternately cool; Acquire a second cooling temperature, where the second cooling temperature is a cooling water tank temperature of an inactive refrigerator in the cooling assembly; When the second cooling temperature is greater than or equal to a second preset value, and the difference between the first cooling temperature and the first preset value is less than or equal to a preset difference, new coolant is injected into the first cooling box through the liquid inlet pipe, and the coolant circulating in the pipeline is discharged to the second cooling box in the cooling box group and discharged through the drain pipe connected to the second cooling box; The new coolant in the first cooling tank is transported to the activated refrigeration machine for cooling.

2. The refrigerator cooling water circulation control method according to claim 1, characterized in that: The drain pipe is arranged at the bottom of the cooling box.

3. The refrigerator cooling water circulation control method according to claim 1, characterized in that: A first circulating pump is provided on the connecting pipeline between the cooling zone of the refrigeration object and the third three-way valve.

4. The method for controlling the cooling water circulation of a refrigerator according to claim 1, wherein: A second circulation pump is provided on the connecting pipeline at the outlet end of the cooling box group.

5. The method for controlling the cooling water circulation of a refrigerator according to any one of claims 1 to 4, characterized in that: The refrigerator cooling water circulation control system also includes: a first temperature detection module for detecting the temperature at the outlet end of the cooling zone of the refrigeration object, a second temperature detection module for detecting the temperature of each cooling box in the cooling box group, a third temperature detection module for detecting the temperature of the cooling water tank of the first refrigerator, and a fourth temperature detection module for detecting the temperature of the cooling water tank of the second refrigerator.

6. The refrigerator cooling water circulation control method according to claim 1, characterized in that: The method further comprises: The activated chiller uses the coolant in the two cooling tanks alternately for cooling.

7. The refrigerator cooling water circulation control method according to claim 1, characterized in that: The method further comprises: When the first cooling temperature is lower than the first preset value, the second cooling temperature is lower than the first cooling temperature, the real-time temperature of the cooling zone of the refrigeration object is higher than the third preset value, and the temperature change rate of the cooling zone of the refrigeration object is higher than the fourth preset value, the enabled refrigerator in the cooling assembly is turned off and another refrigerator in the cooling assembly is enabled.

Images