A cabinet air conditioning system and its control method, device and storage medium

Abstract

The present invention discloses a control method, device, cabinet air conditioning system and storage medium for a cabinet air conditioning system, the method comprising: when the cabinet air conditioning system is started and running, controlling the working server in the first heat exchange device to be in working state and the standby server to be in standby state, and controlling the second heat exchange device to be in working state; obtaining the current current of the working server, and obtaining the outdoor environmental parameters of the cabinet air conditioning system; according to the current current of the working server, controlling the working server and the standby server to switch operation; and / or, according to the outdoor environmental parameters of the cabinet air conditioning system, controlling the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device. This scheme, by dynamically allocating the refrigerant flow paths of the electronic equipment room air conditioner and the office room air conditioner, is conducive to reducing the energy consumption of cabinet equipment such as small computer rooms and data centers.

Description

Technical Field

[0001] The present invention belongs to the technical field of cabinet air conditioning systems, and specifically relates to a control method, device, cabinet air conditioning system and storage medium for a cabinet air conditioning system, and more particularly to an intelligent detection and dynamic flow distribution method, device, cabinet air conditioning system and storage medium for liquid cooling anti-freezing. Background Art

[0002] Cabinet equipment such as small computer rooms, data centers or communication base stations are composed of cabinets equipped with IT (Internet technology) equipment. The IT equipment in the cabinets includes server cabinets, switch cabinets, power module cabinets, battery cabinets, etc. With the rapid development of the Internet and telecommunications, the energy consumption of cabinets is also increasing. The power consumption of the air conditioning system used to cool the heat-generating cabinets is as high as about 50% of the total power consumption of the heat-generating cabinets.

[0003] Especially for cabinet equipment such as small computer rooms and data centers, the high power consumption of the air conditioning system used to cool cabinet equipment such as small computer rooms and data centers is particularly serious, and the energy consumption is huge. Obviously, nearly half of the energy consumption of cabinet equipment such as small computer rooms and data centers is for heat dissipation, that is, nearly half of the energy consumption is for cooling the heat-generating cabinets; therefore, how to achieve energy saving and consumption reduction is one of the difficulties faced by cabinet equipment such as small computer rooms and data centers.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a control method, device, cabinet air conditioning system and storage medium for a cabinet air conditioning system to solve the problem of high energy consumption of cabinet equipment such as small computer rooms and data centers, so as to achieve the effect of reducing the energy consumption of cabinet equipment such as small computer rooms and data centers by dynamically allocating the refrigerant flow paths of electronic equipment room air conditioners and office room air conditioners.

[0006] The present invention provides a control method for a cabinet air conditioning system, wherein the cabinet air conditioning system comprises: an electronic equipment room air conditioner and an office room air conditioner; the electronic equipment room air conditioner comprises: a first heat exchange device, wherein the first heat exchange device is n servers, where n is a positive integer; a part of the n servers in a working state are working servers, and the remaining servers in a standby state are standby servers; the office room air conditioner comprises: a second heat exchange device; the first heat exchange device and the second heat exchange device are connected through a pipeline to form a liquid cooling air conditioning system; the control method for the cabinet air conditioning system comprises: when the cabinet air conditioning system is started and running, controlling the working servers in the first heat exchange device to be in a working state and the standby servers to be in a standby state, and controlling the second heat exchange device to be in a working state; obtaining the current current of the working server and obtaining the outdoor environmental parameters of the cabinet air conditioning system; according to the current current of the working server, controlling the working server and the standby server to switch operation; and / or, according to the outdoor environmental parameters of the cabinet air conditioning system, controlling the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device.

[0007] In some embodiments, the working server and the standby server are controlled to switch operation according to the current current of the working server, including: determining whether the current current of the working server is within a preset normal current range according to the current current of the working server; if it is determined that the current current of the working server is within the preset normal current range, it is determined that there is no faulty server among the working servers, and the process returns to continue obtaining the current current of the working servers; if it is determined that there is a server among the current currents of the working servers whose current current is not within the preset normal current range, it is determined that there is a faulty server among the working servers, and the faulty server is controlled to shut down, and the standby server is controlled to switch from a standby state to a working state.

[0008] In some embodiments, on the side of the first heat exchange device, a first switch module is provided at the heat exchange fluid inlet end of each of the servers, and a second switch module is provided at the heat exchange fluid outlet end of each of the servers; a third switch module is also provided in the pipeline between the first switch module of each server and the heat exchange fluid inlet end of the server and the pipeline between the second switch module of the server and the second heat exchange device; controlling the faulty server to shut down and controlling the standby server to switch from the standby state to the working state includes: when the working server is in the working state and the standby server is in the standby state, controlling the first switch module, the second switch module and the third switch module of each server in the working server to be turned on, and controlling the first switch module, the second switch module and the third switch module of each server in the standby server to be turned off; when there is the faulty server in the working server, controlling the first switch module, the second switch module and the third switch module of the faulty server to be turned off, and controlling the first switch module, the second switch module and the third switch module of the server in the standby server that needs to switch from the standby state to the working state to be turned on.

[0009] In some embodiments, the second switch module of the working server and the second switch module of the standby server are both arranged at the common heat exchange fluid outlet end of the working server and the standby server, serving as the common switch module of the working server and the standby server; controlling the faulty server to shut down, and controlling the standby server to switch from standby state to working state, also includes: before determining that there is the faulty server in the working server, after the working server is in the working state and the standby server is in the standby state for a set time, controlling the third switch module of the working server to turn off, controlling the first switch module of the standby server to turn off, controlling the common switch module of the working server and the standby server to turn off, controlling the first switch module of the working server to turn on, and controlling the third switch module of the standby server to turn on, so that the heat exchange fluid of the working server flows reversely through the standby server.

[0010] In some embodiments, according to the outdoor environmental parameters of the cabinet air-conditioning system, the first heat exchange device is controlled to allocate part of the heat exchange fluid to the second heat exchange device, including: according to the outdoor environmental parameters of the cabinet air-conditioning system, determining whether the outdoor environmental parameters of the cabinet air-conditioning system reach the frost point environmental parameter range of the second heat exchange device; if it is determined that the outdoor environmental parameters of the cabinet air-conditioning system do not reach the frost point environmental parameter range of the second heat exchange device, returning to continue to obtain the outdoor environmental parameters of the cabinet air-conditioning system; if it is determined that the outdoor environmental parameters of the cabinet air-conditioning system reach the frost point environmental parameter range of the second heat exchange device, controlling the first heat exchange device to allocate part of the heat exchange fluid to the second heat exchange device, and controlling the second heat exchange device to continue to be in a working state.

[0011] In some embodiments, on the side of the second heat exchange device, the second heat exchange device includes: a first heat exchanger and a second heat exchanger; the first heat exchanger and the second heat exchanger are arranged in parallel; a fourth switch module is arranged in the pipeline from part of the heat exchange fluid of the first heat exchange device to the first heat exchanger; a fifth switch module is arranged in the pipeline from part of the heat exchange fluid of the first heat exchange device to the second heat exchanger; controlling the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device includes: when the second switch module of the server on the side of the first heat exchange device is turned on and / or the third switch module is turned on, controlling the fourth switch module of the first heat exchanger and / or the fifth switch module of the second heat exchanger to be turned on, so that part of the heat exchange fluid of the first heat exchange device is diverted to the first heat exchanger and / or the second heat exchanger.

[0012] Matching the above method, the present invention provides a control device for a cabinet air conditioning system on the other hand, wherein the cabinet air conditioning system comprises: an electronic equipment room air conditioner and an office room air conditioner; the electronic equipment room air conditioner comprises: a first heat exchange device, wherein the first heat exchange device is n servers, where n is a positive integer; a portion of the n servers in working state are working servers, and the remaining servers in standby state are standby servers; the office room air conditioner comprises: a second heat exchange device; the first heat exchange device and the second heat exchange device are connected by a pipeline to form a liquid cooling air conditioning system; the control device for the cabinet air conditioning system comprises: a control unit configured to When the cabinet air conditioning system is started and running, the working server in the first heat exchange device is controlled to be in working state and the standby server is in standby state, and the second heat exchange device is controlled to be in working state; the acquisition unit is configured to acquire the current current of the working server and acquire the outdoor environmental parameters of the cabinet air conditioning system; the control unit is further configured to control the working server and the standby server to switch operation according to the current current of the working server; and / or the control unit is further configured to control the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device according to the outdoor environmental parameters of the cabinet air conditioning system.

[0013] In some embodiments, the control unit controls the working server and the standby server to switch operation according to the current current of the working server, including: determining whether the current current of the working server is within a preset normal current range according to the current current of the working server; if it is determined that the current current of the working server is within the preset normal current range, it is determined that there is no faulty server among the working servers, and then returns to continue to obtain the current current of the working server; if it is determined that the current current of a server among the working servers is not within the preset normal current range, it is determined that there is a faulty server among the working servers, and then the faulty server is controlled to shut down, and the standby server is controlled to switch from standby state to working state.

[0014] In some embodiments, on the side of the first heat exchange device, a first switch module is provided at the heat exchange fluid inlet end of each of the servers, and a second switch module is provided at the heat exchange fluid outlet end of each of the servers; a third switch module is also provided in the pipeline between the first switch module of each server and the heat exchange fluid inlet end of the server and the pipeline between the second switch module of the server and the second heat exchange device; the control unit controls the shutdown of the faulty server and controls the standby server to switch from the standby state to the working state, including: when the working server is in the working state and the standby server is in the standby state, control the first switch module, the second switch module and the third switch module of each server in the working server to be turned on, and control the first switch module, the second switch module and the third switch module of each server in the standby server to be turned off; when there is the faulty server in the working server, control the first switch module, the second switch module and the third switch module of the faulty server to be turned off, and control the first switch module, the second switch module and the third switch module of the server in the standby server that needs to switch from the standby state to the working state to be turned on.

[0015] In some embodiments, the second switch module of the working server and the second switch module of the standby server are both arranged at the common heat exchange fluid outlet end of the working server and the standby server, serving as the common switch module of the working server and the standby server; the control unit controls the shutdown of the faulty server and controls the standby server to switch from the standby state to the working state, and also includes: before determining that there is the faulty server in the working server, after the working server is in the working state and the standby server is in the standby state for a set time, controlling the third switch module of the working server to turn off, controlling the first switch module of the standby server to turn off, controlling the common switch module of the working server and the standby server to turn off, controlling the first switch module of the working server to turn on, and controlling the third switch module of the standby server to turn on, so that the heat exchange fluid of the working server flows reversely through the standby server.

[0016] In some embodiments, the control unit controls the first heat exchange device to allocate part of the heat exchange fluid to the second heat exchange device according to the outdoor environmental parameters of the cabinet air-conditioning system, including: determining whether the outdoor environmental parameters of the cabinet air-conditioning system reach the frost point environmental parameter range of the second heat exchange device according to the outdoor environmental parameters of the cabinet air-conditioning system; if it is determined that the outdoor environmental parameters of the cabinet air-conditioning system do not reach the frost point environmental parameter range of the second heat exchange device, returning to continue to obtain the outdoor environmental parameters of the cabinet air-conditioning system; if it is determined that the outdoor environmental parameters of the cabinet air-conditioning system reach the frost point environmental parameter range of the second heat exchange device, controlling the first heat exchange device to allocate part of the heat exchange fluid to the second heat exchange device, and controlling the second heat exchange device to continue to be in a working state.

[0017] In some embodiments, on the side of the second heat exchange device, the second heat exchange device includes: a first heat exchanger and a second heat exchanger; the first heat exchanger and the second heat exchanger are arranged in parallel; a fourth switch module is arranged in the pipeline from part of the heat exchange fluid of the first heat exchange device to the first heat exchanger; a fifth switch module is arranged in the pipeline from part of the heat exchange fluid of the first heat exchange device to the second heat exchanger; the control unit controls the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device, including: when the second switch module of the server on the side of the first heat exchange device is turned on and / or the third switch module is turned on, controlling the fourth switch module of the first heat exchanger and / or the fifth switch module of the second heat exchanger to be turned on, so that part of the heat exchange fluid of the first heat exchange device is diverted to the first heat exchanger and / or the second heat exchanger.

[0018] Matching the above device, the present invention further provides a cabinet air conditioning system on the other hand, including: the control device of the cabinet air conditioning system mentioned above.

[0019] In accordance with the above method, the present invention provides a storage medium on the other hand, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the above-mentioned control method for the cabinet air conditioning system.

[0020] Therefore, the scheme of the present invention detects the working conditions of the servers in the electronic equipment room and the office room in the cabinet equipment, and detects the outdoor environmental parameters of the cabinet equipment, and dynamically allocates the refrigerant flow paths of the electronic equipment room air conditioner and the office room air conditioner according to the working conditions of the servers and / or the outdoor environmental parameters, thereby, by dynamically allocating the refrigerant flow paths of the electronic equipment room air conditioner and the office room air conditioner, it is beneficial to reduce the energy consumption of cabinet equipment such as small computer rooms and data centers. At the same time, it can also solve the problem of server failure in the electronic equipment room and defrosting of the office room air conditioner affecting the heating efficiency when the outdoor ambient temperature is at a low temperature, thereby ensuring the reliable operation of the electronic equipment room and the thermal comfort of the office room.

[0021] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention.

[0022] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the layout structure of an embodiment of cabinet equipment such as a small computer room, a data center, etc.;

[0024] Figure 2 A schematic diagram of a flow chart of an embodiment of a method for controlling a cabinet air conditioning system of the present invention;

[0025] Figure 3 A flow chart of an embodiment of controlling the switching operation between the working server and the standby server in the method of the present invention;

[0026] Figure 4 A flow chart of an embodiment of controlling the standby server to switch from a standby state to a working state in the method of the present invention;

[0027] Figure 5 A schematic flow chart of an embodiment of controlling the first heat exchange device to distribute a portion of the heat exchange fluid to the second heat exchange device in the method of the present invention;

[0028] Figure 6 It is a structural schematic diagram of an embodiment of a control device for a cabinet air conditioning system of the present invention;

[0029] Figure 7 A schematic structural diagram of an embodiment of a liquid cooling anti-freezing intelligent detection and dynamic flow path distribution system;

[0030] Figure 8The present invention is a flow chart of an embodiment of a liquid cooling anti-freezing intelligent detection and dynamic flow distribution system for a data center intelligent control strategy.

[0031] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0032] 100-liquid pump; 200-first server; 201-second server; 202-third server; 301-first stop valve; 302-second stop valve; 303-third stop valve; 401-fourth stop valve; 402-fifth stop valve; 403-sixth stop valve; 404-seventh stop valve; 500-first heat exchanger (such as office area heat exchanger); 501-second heat exchanger (such as liquid cooling heat exchanger); 102-acquisition unit; 104-control unit. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Figure 1 The schematic diagram of the layout structure of a cabinet device in a small computer room, data center, etc. Figure 1 As shown in the figure, the spatial layout of cabinet equipment such as small computer rooms and data centers includes: server rooms, power distribution rooms and office areas. Server rooms and power distribution rooms, as electronic equipment rooms, need to be cooled all year round. The office area needs to be heated in a low temperature environment.

[0035] Considering that, on the one hand, the layout of cabinet equipment such as small computer rooms and data centers generally includes electronic equipment rooms and offices for maintenance managers. Among them, the electronic equipment room requires uninterrupted cooling throughout the year, while the maintenance manager's office needs to be heated in winter. Under normal circumstances, a dedicated air-conditioning device for an air-cooled fluorine pump computer room is used to cool the electronic equipment room, while a variable refrigerant flow air-conditioning device is used to heat the office room without a heating heat source. Both systems (i.e., the dedicated air-conditioning device for an air-cooled fluorine pump computer room and the variable refrigerant flow air-conditioning device) operate separately, one system (i.e., the dedicated air-conditioning device for an air-cooled fluorine pump computer room) dissipates heat, and one system (i.e., the variable refrigerant flow air-conditioning device) consumes heat. The heat dissipation of the dedicated air-conditioning device for an air-cooled fluorine pump computer room causes energy waste, and the low-temperature heating of the variable refrigerant flow air-conditioning device has problems of frost and low energy efficiency.

[0036] On the other hand, in some heat dissipation technologies, air cooling requires cooling the entire space, which consumes huge amounts of energy. As the country has introduced relevant policies to limit the PUE (Power Usage Effectiveness) value (generally not higher than 1.4), more and more small computer rooms, data centers and other cabinet equipment are using liquid cooling technology or combined with natural cooling source technology for heat dissipation. Liquid cooling technology combined with natural cooling sources, especially in the Northeast and other regions, when the temperature drops below minus 30 degrees Celsius in winter, because the servers in the server cabinets of small computer rooms, data centers and other cabinet equipment require high reliability, when a server fails, there is a risk of freezing of the coolant when switching to the backup server in the server cabinet of small computer rooms, data centers and other cabinet equipment, thus affecting the heat dissipation reliability of the data center.

[0037] Therefore, the solution of the present invention provides a set of intelligent detection and dynamic flow path distribution solutions for liquid cooling anti-freezing to solve the problem of high energy consumption of cabinet equipment such as small computer rooms and data centers. At the same time, the solution of the present invention provides a set of intelligent detection and dynamic flow path distribution systems for liquid cooling anti-freezing, which can solve the problem of cooling liquid freezing caused by server failure at low temperatures, and the problem of low frosting energy efficiency in low-temperature heating of office rooms.

[0038] According to an embodiment of the present invention, a control method for a cabinet air conditioning system is provided. Figure 2 The flowchart of an embodiment of the method of the present invention is shown. The cabinet air conditioning system is applied to cabinet equipment. The cabinet equipment includes: an electronic equipment room and an office room. The electronic equipment room is provided with n servers, where n is a positive integer. The cabinet air conditioning system includes: an electronic equipment room air conditioner and an office room air conditioner, where the electronic equipment room air conditioner is a liquid-cooled fluorine pump room dedicated air conditioning device, and the office room air conditioner is a variable refrigerant flow air conditioning device. The electronic equipment room air conditioner and the office room air conditioner form a liquid-cooled air conditioning system. The electronic equipment room air conditioner includes: a first heat exchange device, where the first heat exchange device is n servers, where n is a positive integer. That is, the n servers, as heat exchange devices in the electronic equipment room air conditioner, are recorded as the first heat exchange device. Among the n servers, a part of the servers in working state are working servers, and the remaining servers in standby state are standby servers. For example: among the n servers, m of the servers are working servers, and the remaining servers are standby servers, where m is a positive integer less than n. The office room air conditioner includes: a second heat exchange device. The first heat exchange device and the second heat exchange device are connected by pipelines to form a liquid cooling air conditioning system.

[0039] The control method of the cabinet air conditioning system includes: steps S110 to S140.

[0040] At step S110, when the cabinet air conditioning system is started and running, the air conditioning of the electronic equipment room is controlled to operate in cooling mode, and the air conditioning of the office room is controlled to operate at the target temperature set by the user. Furthermore, during the operation of the cabinet air conditioning system, especially during the heating operation of the air conditioning of the office room in the cabinet air conditioning system, it is necessary to control the second heat exchange device to prevent frost. That is, when the cabinet air conditioning system is started and running, the working server in the first heat exchange device is controlled to be in working state, and the standby server is in standby state, and the second heat exchange device is controlled to be in working state. Of course, during the cooling operation of the air conditioning of the office room in the cabinet air conditioning system, it is also necessary to control the main server in the first heat exchange device to be in working state, and the standby server to be in standby state, and control the second heat exchange device to be in working state, but it is not necessary to control the second heat exchange device to prevent frost.

[0041] In step S120, the current current of the working server is obtained, and the outdoor environmental parameters of the cabinet air conditioning system are obtained.

[0042] At step S130, according to the current current of the working server, the working server and the standby server are controlled to switch operation to reduce the energy consumption of the first heat exchange device. And / or,

[0043] In some implementations, the specific process of controlling the switching operation between the working server and the standby server according to the current current of the working server in step S130 is described in the following exemplary embodiment.

[0044] Combine the following Figure 3 The flowchart of an embodiment of controlling the switching operation of the working server and the standby server in the method of the present invention further illustrates the specific process of controlling the switching operation of the working server and the standby server in step S130, including: steps S210 to S230.

[0045] Step S210: determining whether the current current of the working server is within a preset normal current range according to the current current of the working server.

[0046] Step S220: If it is determined that the current current of the working server is within the preset normal current range, it is determined that there is no faulty server in the working server, and the process returns to continue to obtain the current current of the working server.

[0047] Step S230: If it is determined that the current current of a server among the current currents of the working servers is not within the preset normal current range, it is determined that there is a faulty server among the working servers, and the faulty server is controlled to shut down, and the standby server is controlled to switch from a standby state to a working state. When switching specifically, the servers in the standby servers that are the same in number as the faulty servers are controlled to switch from a standby state to a working state, so that the servers in the standby servers that are the same in number as the faulty servers are switched to servers in the working servers.

[0048] Figure 7 The structure diagram of an embodiment of the intelligent detection and dynamic flow distribution system for liquid cooling and anti-freezing is shown in FIG. Figure 7 In the example shown, the first server 200 and the second server 201 are both main servers, and the third server 202 is a backup server. The number of main servers can be flexibly set according to actual needs, and the number of backup servers can also be flexibly set according to actual needs. Figure 7 In the example shown, each of the first server 200 , the second server 201 , and the third server 203 may be a cold plate type, immersion type, or spray type liquid cooling server.

[0049] In some embodiments, on the first heat exchange device side, a first switch module is provided at the heat exchange fluid inlet end of each server (such as a first stop valve 301 is provided at the heat exchange fluid inlet end of the first server 200), and a second switch module is provided at the heat exchange fluid outlet end of each server (such as a seventh stop valve 404 is provided at the heat exchange fluid outlet end of the first server 200). A third switch module is further provided in the pipeline between the pipeline between the first switch module of each server and the heat exchange fluid inlet end of the server and the pipeline between the second switch module of the server and the second heat exchange device (such as a fourth stop valve 401 is provided in the pipeline between the first stop valve 301 and the heat exchange fluid inlet end of the first server 200 and the pipeline between the second heat exchange device).

[0050] like Figure 7 As shown, in the data center, the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing includes: a liquid pump 100, a first server 200, a second server 201, a third server 203, a second heat exchange device, a first stop valve 301, a second stop valve 302, a third stop valve 303, and a fourth stop valve 401, a fifth stop valve 402, a sixth stop valve 403, a seventh stop valve 404, etc. Of course, the number of servers can be flexibly set according to actual needs. The stop valve is also called a gate valve, which is a forced sealing valve.

[0051] exist Figure 7In the example shown, each server group has corresponding stop valves before and after to control the flow direction of the liquid. A server group may include only one server. For example, when the seventh stop valve 404 is turned on, the first server 200 is a server group, and the second server 201 is also a server group. When the seventh stop valve 404 is turned off, the first server 200 and the third server 202 constitute a server group, and the second server 201 and the third server 202 constitute a server group.

[0052] For the specific process of controlling the failed server to shut down and controlling the standby server to switch from the standby state to the working state in step S230, please refer to the following exemplary description.

[0053] Combine the following Figure 4 The flowchart of an embodiment of controlling the standby server to switch from the standby state to the working state in the method of the present invention further illustrates the specific process of controlling the standby server to switch from the standby state to the working state in step S230, including: step S310 and step S320.

[0054] Step S310, when the working server is in working state and the standby server is in standby state, control the first switch module, the second switch module and the third switch module of each server in the working server to be turned on, and control the first switch module, the second switch module and the third switch module of each server in the standby server to be turned off.

[0055] Figure 8 The figure is a flow chart of an embodiment of the intelligent control strategy of the data center by the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing. Figure 8 As shown in the figure, the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing provides intelligent control strategies for cabinet equipment in small computer rooms, data centers, etc., including:

[0056] Step 1: The intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing continuously detects the current I1~In passing through n servers and the outdoor environmental parameters, and then executes step 2 and step 3 respectively. Where n is a positive integer.

[0057] Step 2: Determine whether the detected currents I1 to In of each server are within a preset normal current range: if so, execute step 21, and then execute step 22; if not, return to step 1.

[0058] Step 21: When the detected currents I1-In of each server are within the preset normal current range, the main server is controlled to work normally, and the redundant backup server is controlled to be in standby state. The main server is a server for normal operation, and the backup server is a standby server used to be enabled when the main server fails or has insufficient capacity.

[0059] by Figure 7 Taking the example in as an example, the first server 200 and the second server 201 are used as the main servers, and the third server 202 is used as the backup server. When the detected currents I1~In of each server (specifically the current I1 of the first server 200 and the current I2 of the second server 201) are within the preset normal current range, the first server 200 and the second server 201 are controlled to work normally, and the redundant backup server (i.e., the third server 202) is controlled to be in standby state.

[0060] Step S320, when there is the faulty server among the working servers, the first switch module, the second switch module and the third switch module of the faulty server are all controlled to be turned off, and the first switch module, the second switch module and the third switch module of the server in the backup server that needs to switch from the standby state to the working state are all controlled to be turned on.

[0061] like Figure 8 As shown in the figure, the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing is used for intelligent control strategies of cabinet equipment in small computer rooms, data centers, etc., and also includes:

[0062] Step 22: When the detected server currents I1-In are not within the preset normal current range, it is determined that a server current Ii among the detected server currents I1-In is in an abnormal state, and it is determined whether there is a server failure among the servers, where i is a positive integer between 1 and n. The server with abnormal server current Ii among the server currents I1-In is recorded as an abnormal server.

[0063] When the abnormal server among the servers has been identified, the stop valves at the front and rear ends of the abnormal server are controlled to be closed, and a reminder message (such as an alarm message) of the abnormality of the abnormal server is issued to wait for maintenance personnel to inspect and repair it. At the same time, the redundant backup server (i.e., the third server 202) is switched to a normal working state, that is, the backup server (i.e., the third server 202) is switched from a standby state to a normal working state and used as a main server. At this time, the third stop valve 303 and the seventh stop valve 404 at both ends of the third server 202 are opened, and the liquid cooling fluid flows forward, and finally merges with the hot fluid of the remaining servers (i.e., the remaining main servers except the abnormal server).

[0064] In some embodiments, the second switch module of the working server and the second switch module of the standby server are both arranged at the common heat exchange fluid outlet of the working server and the standby server, serving as common switch modules of the working server and the standby server.

[0065] In step S230, the faulty server is controlled to shut down, and the standby server is controlled to switch from a standby state to a working state, and further includes: before determining that there is the faulty server in the working server, after the working server is in a working state and the standby server is in a standby state for a set time, the third switch module of the working server is controlled to be turned off, the first switch module of the standby server is controlled to be turned off, the common switch module of the working server and the standby server is controlled to be turned off, the first switch module of the working server is controlled to be turned on, and the third switch module of the standby server is controlled to be turned on, so that the heat exchange fluid of the working server flows reversely through the standby server to prevent the standby server from freezing.

[0066] like Figure 8 As shown in the figure, the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing is used for intelligent control strategies of cabinet equipment in small computer rooms, data centers, etc., and also includes:

[0067] In step 21, after working for a period of time, if the heat power consumption of the redundant backup server (i.e., the third server 202) is extremely low, while the heat power consumption of the first server 200 and the second server 201 is relatively large, in order to prevent the liquid cooling fluid flowing through the low-temperature backup server (such as the third server 202) from freezing, at this time, the third stop valve 303 and the fourth stop valve 401, the fifth stop valve 402, and the seventh stop valve 404 are controlled to be closed, and the first stop valve 301, the second stop valve 302, and the sixth stop valve 403 are opened, so that the liquid cooling fluid is collected and flows to the third server 202. In this way, the hot flow fluid that has been heat exchanged by the first server 200 and the second server 201 flows through the third server 202 in the reverse direction, thereby ensuring that the fluid flowing through the low-temperature backup server (such as the third server 202) is not frozen. For example: backup servers generally handle fewer transactions, and their CPU frequency is relatively low, perhaps only a few tenths of a Hz or more than 1 GHz; when the main server is fully loaded, the frequency is relatively high, and the thermal power consumption of a single CPU may reach 300W; and it is known that heat is a conversion of electrical energy. The higher the frequency, the more load that can be processed, and the more power is consumed. When the power supply voltage is stable, the manifestation of high power consumption is the change in current.

[0068] At step S140, according to the outdoor environmental parameters of the cabinet air conditioning system, the first heat exchange device is controlled to distribute part of the heat exchange fluid to the second heat exchange device to avoid frost on the second heat exchange device. The first heat exchanger (such as an office area heat exchanger) 500 is specifically an outdoor unit of an office air conditioner, such as an outdoor unit of an air conditioner placed on an exterior wall or a roof.

[0069] The solution of the present invention is to address the problem of high energy consumption of cabinet equipment such as small computer rooms and data centers, and more specifically to address the problem of cooling liquid freezing caused by server failure at low temperatures, as well as the problem of low frosting energy efficiency for low-temperature heating of office rooms. A set of intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing is designed. Through the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing, it is possible to intelligently detect whether the server of cabinet equipment such as small computer rooms and data centers is faulty, and whether the outdoor environmental parameters reach the frosting point of the office room air conditioner, and dynamically distribute the refrigerant flow paths of the electronic equipment room air conditioner and the office room air conditioner according to the detection results, thereby improving the energy-saving and consumption-reducing effect of cabinet equipment such as small computer rooms and data centers, and also avoiding the problem of liquid freezing when server failures at low temperatures or switching to standby servers, improving the low-temperature heating efficiency of the office room, and also avoiding the problem of defrosting temperature fluctuations to provide defrosting reliability.

[0070] For example: during the heating process in winter, due to the frost on the outdoor unit, the heat dissipation effect of the outdoor unit will deteriorate, which in turn leads to low energy efficiency and poor indoor heating effect; if defrosting at this time, some solutions reverse the bypass flow of the four-way valve or the compressor to make the outdoor unit heat up, thereby removing the frost on the surface. Generally, the defrosting process lasts no more than 40 minutes; however, in this process, the indoor heat exchanger part has very low heating or no heating, and basically relies on electric heating to maintain heating; this leads to a decrease in indoor temperature and poor physical sensation; of course, in response to this defect, manufacturers and universities have proposed many solutions, such as thermal mechanical defrosting, intelligent detection defrosting, etc., but none of them collect and utilize the waste heat. The solution of the present invention is a collection and utilization of waste heat, which is more energy-saving and environmentally friendly.

[0071] In some embodiments, the specific process of controlling the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device according to the outdoor environmental parameters of the cabinet air conditioning system in step S140 is described in the following exemplary embodiments.

[0072] Combine the following Figure 5 The flowchart of an embodiment of controlling the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device in the method of the present invention is shown, which further illustrates the specific process of controlling the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device in step S140, including: step S410 to step S430.

[0073] Step S410: determining, based on the outdoor environmental parameters of the cabinet air conditioning system, whether the outdoor environmental parameters of the cabinet air conditioning system reach the frost point environmental parameter range of the second heat exchange device.

[0074] Step S420: If it is determined that the outdoor environmental parameter of the cabinet air conditioning system does not reach the frost point environmental parameter range of the second heat exchange device, return to continue to obtain the outdoor environmental parameter of the cabinet air conditioning system.

[0075] Step S430: If it is determined that the outdoor environmental parameters of the cabinet air conditioning system reach the frost point environmental parameter range of the second heat exchange device, the first heat exchange device is controlled to distribute part of the heat exchange fluid to the second heat exchange device, and the second heat exchange device is controlled to continue to be in working state.

[0076] exist Figure 7 In the example shown, the first heat exchanger (such as an office area heat exchanger) 500 has two sets of pipelines, one set of pipelines is used for normal refrigerant heat dissipation, and the other set of pipelines is used for liquid cooling fluid heat dissipation.

[0077] In some embodiments, on the side of the second heat exchange device, the second heat exchange device includes: a first heat exchanger 500 and a second heat exchanger 501. The first heat exchanger 500 and the second heat exchanger 501 are arranged in parallel. A fourth switch module is arranged in the pipeline from a part of the heat exchange fluid of the first heat exchange device to the first heat exchanger 500. A fifth switch module is arranged in the pipeline from a part of the heat exchange fluid of the first heat exchange device to the second heat exchanger 501. The fourth switch module is, for example, a stop valve arranged at the first heat exchanger (such as an office area heat exchanger) 500. The fifth switch module is, for example, a stop valve arranged at the second heat exchanger (such as a liquid-cooled heat exchanger) 501.

[0078] like Figure 7 As shown, in a data center, the intelligent detection and dynamic flow path distribution system for liquid cooling anti-freezing specifically includes: a liquid pump 100, a first server 200, a second server 201, a third server 203, a first heat exchanger (such as an office area heat exchanger) 500 and a second heat exchanger (such as a liquid cooling heat exchanger) 501, a first stop valve 301, a second stop valve 302, a third stop valve 303, and a fourth stop valve 401, a fifth stop valve 402, a sixth stop valve 403, a seventh stop valve 404, etc. The first heat exchanger (such as an office area heat exchanger) 500 is an outdoor unit arranged outdoors, and the second heat exchanger (such as a liquid cooling heat exchanger) 501 is also an outdoor unit arranged outdoors, except that sometimes part of the hot water flowing through the second heat exchanger (such as a liquid cooling heat exchanger) 501 will be diverted to pass through the first heat exchanger (such as an office area heat exchanger) 500.

[0079] Among them, the outlet of the liquid pump 100 is connected to the first common connection end through the pipeline. The first common connection end is divided into three paths: one path is connected to the first end of the first server 200 after passing through the first stop valve 301, and the second end of the first server 200 is connected to the second common connection end. Another path is connected to the first end of the second server 201 after passing through the second stop valve 302, and the second end of the second server 201 is connected to the second common connection end. Another path is connected to the first end of the third server 202 after passing through the third stop valve 303, and the second end of the third server 202 is connected to the second common connection end. The second common connection end is connected to the first end of the seventh stop valve 404. The first end of the first server 200 is also connected to the third common connection end after passing through the fourth stop valve 401. The first end of the second server 201 is also connected to the third common connection end after passing through the fifth stop valve 402. The first end of the third server 202 is also connected to the third common connection end after passing through the sixth stop valve 403. The second end of the seventh stop valve 404 is also connected to the third common connection end. The third common connection end is divided into two paths: one path is connected to the first end of the first heat exchanger (such as the office area heat exchanger) 500 after passing through a stop valve, and the second end of the first heat exchanger (such as the office area heat exchanger) 500 is connected to the fourth common connection end. The other path is connected to the first connection end of the second heat exchanger (such as the liquid cooling heat exchanger) 501 after passing through another stop valve, and the second end of the second heat exchanger (such as the liquid cooling heat exchanger) 501 is connected to the fourth common connection end. The fourth common connection end is connected to the inlet of the liquid pump 100.

[0080] In step S430, controlling the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device includes: when the second switch module of the server on the side of the first heat exchange device is turned on and / or the third switch module is turned on, controlling the fourth switch module of the first heat exchanger 500 and / or the fifth switch module of the second heat exchanger 501 to be turned on, so that part of the heat exchange fluid of the first heat exchange device is diverted to the first heat exchanger 500 and / or the second heat exchanger 501, so as to avoid the first heat exchange device from frosting and affecting the heating comfort of the office room. Specifically, when the second switch module of the server on the side of the first heat exchange device is turned on and / or the third switch module is turned on, controlling the fourth switch module of the first heat exchanger 500 to be turned on, so that part of the heat exchange fluid of the first heat exchange device is diverted to the first heat exchanger 500, so as to avoid the first heat exchange device from frosting and affecting the heating comfort of the office room. Alternatively, when the second switch module of the server is turned on and / or the third switch module is turned on at the first heat exchange device side, the fifth switch module of the second heat exchanger 501 is controlled to be turned on, so that part of the heat exchange fluid of the first heat exchange device is diverted to the second heat exchanger 501, so as to avoid the first heat exchange device from frosting and affecting the heating comfort of the office room. Alternatively, when the second switch module of the server is turned on and / or the third switch module is turned on at the first heat exchange device side, the fourth switch module of the first heat exchanger 500 and the fifth switch module of the second heat exchanger 501 are controlled to be turned on, so that part of the heat exchange fluid of the first heat exchange device is diverted to the first heat exchanger 500 and the second heat exchanger 501, so as to avoid the first heat exchange device from frosting and affecting the heating comfort of the office room.

[0081] like Figure 8 As shown in the figure, the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing is used for intelligent control strategies of cabinet equipment in small computer rooms, data centers, etc., and also includes:

[0082] Step 3, the detected outdoor environmental parameters may include outdoor temperature T1, outdoor humidity d, etc. The outdoor temperature T1 may be the outdoor dew point temperature. The temperature difference between the outdoor humidity, dew point temperature, etc. of the outdoor air and the tube temperature of the first heat exchanger (such as the office area heat exchanger) 500 is one of the factors affecting the frosting of the first heat exchanger (such as the office area heat exchanger) 500. Among them, the frost of the first heat exchanger (such as the office area heat exchanger) 500 is on the fins, but generally what is detected is the temperature of the pipeline of the first heat exchanger (such as the office area heat exchanger) 500, that is, the tube temperature. For example: the temperature sensing package can be welded on the copper tube of the first heat exchanger (such as the office area heat exchanger) 500 to detect the tube temperature of the first heat exchanger (such as the office area heat exchanger) 500, or the temperature sensing package can be stuck on the fin of the first heat exchanger (such as the office area heat exchanger) 500 to detect the outdoor environmental temperature.

[0083] When it is detected that the temperature difference between the pipe temperature of the first heat exchanger (such as the office area heat exchanger) 500 and the outdoor temperature T1, as well as the outdoor humidity d are close to the frost point range of the first heat exchanger (such as the office area heat exchanger) 500, the front one-way valve (such as the stop valve set at the first heat exchanger) of the first heat exchanger (such as the office area heat exchanger) 500 is opened, and the hot fluid liquid heat-exchanged by some servers (i.e., working servers) passes through the first heat exchanger (such as the office area heat exchanger) 500, so that the first heat exchanger (such as the office area heat exchanger) 500 starts to defrost, so that the first heat exchanger (such as the office area heat exchanger) 500 is always in a relatively efficient state, and the fluctuation and discomfort of the indoor temperature caused by the failure to provide heat during the defrosting process are avoided.

[0084] When it is detected that the temperature difference between the pipe temperature of the first heat exchanger (such as the office area heat exchanger) 500 and the outdoor temperature T1, and the outdoor humidity d have not reached the frost point of the first heat exchanger (such as the office area heat exchanger) 500, the front one-way valve (such as the stop valve set at the first heat exchanger) of the first heat exchanger (such as the office area heat exchanger) 500 is closed. At this time, the compressor of the variable refrigerant flow air-conditioning device in the office area is in normal heating mode.

[0085] Of course, based on step 2 and step 3, if a server failure is detected (i.e., an abnormal server is detected), and the temperature difference between the tube temperature of the first heat exchanger (such as the office area heat exchanger) 500 and the outdoor temperature T1, and the outdoor humidity d, etc., which are close to the frost point range of the first heat exchanger (such as the office area heat exchanger) 500, occur simultaneously, then the two processes are controlled in parallel, that is, step 2 and step 3 are executed simultaneously.

[0086] The solution of the present invention intelligently controls the flow direction and distribution of liquid in the flow path through temperature and server current detection, can quickly switch the backup server, and can prevent the outdoor heat exchanger, i.e., the first heat exchanger (such as the office area heat exchanger) 500 from frosting. Therefore, through intelligent detection and dynamic distribution of the flow path, the problem of low-temperature server failure or liquid freezing during switching is avoided, the low-temperature heating efficiency of the office room air conditioner is improved, and the problem of defrosting temperature fluctuation of the office room air conditioner is avoided.

[0087] By adopting the technical solution of this embodiment, the working conditions of the servers in the electronic equipment room and the office room in the cabinet equipment are detected, and the outdoor environmental parameters of the cabinet equipment are detected. According to the working conditions of the servers and / or the outdoor environmental parameters, the refrigerant flow paths of the air conditioners in the electronic equipment room and the office room are dynamically allocated. Thus, by dynamically allocating the refrigerant flow paths of the air conditioners in the electronic equipment room and the office room, it is beneficial to reduce the energy consumption of cabinet equipment such as small computer rooms and data centers. At the same time, it can also solve the problem of server failure in the electronic equipment room and defrosting of the office room air conditioner affecting the heating efficiency when the outdoor ambient temperature is at a low temperature, thereby ensuring the reliable operation of the electronic equipment room and the thermal comfort of the office room.

[0088] According to an embodiment of the present invention, a control device for a cabinet air conditioner system corresponding to the control method for the cabinet air conditioner system is also provided. Figure 6 The structural schematic diagram of an embodiment of the device of the present invention is shown. The cabinet air conditioning system is applied to cabinet equipment. The cabinet equipment includes: an electronic equipment room and an office room. The electronic equipment room is provided with n servers, where n is a positive integer. The cabinet air conditioning system includes: an electronic equipment room air conditioner and an office room air conditioner, where the electronic equipment room air conditioner is a liquid-cooled fluorine pump room dedicated air conditioning device, and the office room air conditioner is a variable refrigerant flow air conditioning device. The electronic equipment room air conditioner and the office room air conditioner form a liquid-cooled air conditioning system. The electronic equipment room air conditioner includes: a first heat exchange device, where the first heat exchange device is n servers, where n is a positive integer. That is, the n servers, as heat exchange devices in the electronic equipment room air conditioner, are recorded as the first heat exchange device. Among the n servers, a part of the servers in working state are working servers, and the remaining servers in standby state are standby servers. For example: among the n servers, m of the servers are working servers, and the remaining servers are standby servers, where m is a positive integer less than n. The office room air conditioner includes: a second heat exchange device. The first heat exchange device and the second heat exchange device are connected by pipelines to form a liquid cooling air conditioning system.

[0089] The control device of the cabinet air conditioning system includes: an acquisition unit 102 and a control unit 104 .

[0090] Among them, the control unit 104 is configured to control the cooling operation of the electronic equipment room air conditioner when the cabinet air conditioning system is started and running, and control the office room air conditioner to operate according to the target temperature set by the user. Furthermore, during the operation of the cabinet air conditioning system, especially during the heating operation of the office room air conditioning in the cabinet air conditioning system, it is necessary to control the second heat exchange device to prevent frost. That is, when the cabinet air conditioning system is started and running, the working server in the first heat exchange device is controlled to be in a working state, and the standby server is in a standby state, and the second heat exchange device is controlled to be in a working state. Of course, during the cooling operation of the office room air conditioning in the cabinet air conditioning system, it is also necessary to control the main server in the first heat exchange device to be in a working state, and the standby server to be in a standby state, and control the second heat exchange device to be in a working state, but it is not necessary to control the second heat exchange device to prevent frost. The specific functions and processing of the control unit 104 refer to step S110.

[0091] The acquisition unit 102 is configured to acquire the current current of the working server and acquire the outdoor environmental parameters of the cabinet air conditioning system. The specific functions and processing of the acquisition unit 102 refer to step S120.

[0092] The control unit 104 is further configured to control the working server and the standby server to switch operation according to the current current of the working server, so as to reduce the energy consumption of the first heat exchange device. The specific functions and processing of the control unit 104 are also referred to step S130. And / or,

[0093] In some implementations, the control unit 104 controls the working server and the standby server to switch operations according to the current current of the working server, including:

[0094] The control unit 104 is further configured to determine whether the current current of the working server is within a preset normal current range according to the current current of the working server. The specific functions and processing of the control unit 104 are also referred to step S210.

[0095] The control unit 104 is further configured to determine that there is no faulty server in the working server if the current current of the working server is within a preset normal current range, and then return to continue to obtain the current current of the working server. The specific functions and processing of the control unit 104 are also shown in step S220.

[0096] The control unit 104 is also specifically configured to, if it is determined that the current current of a server in the current current of the working server is not within a preset normal current range, determine that there is a faulty server in the working server, then control the faulty server to shut down, and control the standby server to switch from a standby state to a working state. When switching specifically, it can be to control the servers in the standby server that are the same in number as the faulty server to switch from a standby state to a working state, so that the servers in the standby server that are the same in number as the faulty server are switched to servers in the working server. The specific functions and processing of the control unit 104 are also referred to step S230.

[0097] Figure 7 The structure diagram of an embodiment of the intelligent detection and dynamic flow distribution system for liquid cooling and anti-freezing is shown in FIG. Figure 7 In the example shown, the first server 200 and the second server 201 are both main servers, and the third server 202 is a backup server. The number of main servers can be flexibly set according to actual needs, and the number of backup servers can also be flexibly set according to actual needs. Figure 7 In the example shown, each of the first server 200 , the second server 201 , and the third server 203 may be a cold plate type, immersion type, or spray type liquid cooling server.

[0098] In some embodiments, on the first heat exchange device side, a first switch module is provided at the heat exchange fluid inlet end of each server (such as a first stop valve 301 is provided at the heat exchange fluid inlet end of the first server 200), and a second switch module is provided at the heat exchange fluid outlet end of each server (such as a seventh stop valve 404 is provided at the heat exchange fluid outlet end of the first server 200). A third switch module is further provided in the pipeline between the pipeline between the first switch module of each server and the heat exchange fluid inlet end of the server and the pipeline between the second switch module of the server and the second heat exchange device (such as a fourth stop valve 401 is provided in the pipeline between the first stop valve 301 and the heat exchange fluid inlet end of the first server 200 and the pipeline between the second heat exchange device).

[0099] like Figure 7 As shown, in the data center, the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing includes: a liquid pump 100, a first server 200, a second server 201, a third server 203, a second heat exchange device, a first stop valve 301, a second stop valve 302, a third stop valve 303, and a fourth stop valve 401, a fifth stop valve 402, a sixth stop valve 403, a seventh stop valve 404, etc. Of course, the number of servers can be flexibly set according to actual needs. The stop valve is also called a gate valve, which is a forced sealing valve.

[0100] exist Figure 7 In the example shown, each server group has corresponding stop valves before and after to control the flow direction of the liquid. A server group may include only one server. For example, when the seventh stop valve 404 is turned on, the first server 200 is a server group, and the second server 201 is also a server group. When the seventh stop valve 404 is turned off, the first server 200 and the third server 202 constitute a server group, and the second server 201 and the third server 202 constitute a server group.

[0101] The control unit 104 controls the failed server to shut down, and controls the standby server to switch from a standby state to a working state, including:

[0102] The control unit 104 is further configured to control the first switch module, the second switch module, and the third switch module of each server in the working server to be turned on, and control the first switch module, the second switch module, and the third switch module of each server in the standby server to be turned off when the working server is in the working state and the standby server is in the standby state. The specific functions and processing of the control unit 104 are also shown in step S310.

[0103] Figure 8 The figure is a flow chart of an embodiment of the intelligent control strategy of the data center by the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing. Figure 8 As shown in the figure, the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing provides intelligent control strategies for cabinet equipment in small computer rooms, data centers, etc., including:

[0104] Step 1: The intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing continuously detects the current I1~In passing through n servers and the outdoor environmental parameters, and then executes step 2 and step 3 respectively. Where n is a positive integer.

[0105] Step 2: Determine whether the detected currents I1 to In of each server are within a preset normal current range: if so, execute step 21, and then execute step 22; if not, return to step 1.

[0106] Step 21: When the detected currents I1-In of each server are within the preset normal current range, the main server is controlled to work normally, and the redundant backup server is controlled to be in standby state. The main server is a server for normal operation, and the backup server is a standby server used to be enabled when the main server fails or has insufficient capacity.

[0107] by Figure 7Taking the example in as an example, the first server 200 and the second server 201 are used as the main servers, and the third server 202 is used as the backup server. When the detected currents I1~In of each server (specifically the current I1 of the first server 200 and the current I2 of the second server 201) are within the preset normal current range, the first server 200 and the second server 201 are controlled to work normally, and the redundant backup server (i.e., the third server 202) is controlled to be in standby state.

[0108] The control unit 104 is further configured to control the first switch module, the second switch module and the third switch module of the failed server to be turned off when there is the failed server in the working server, and control the first switch module, the second switch module and the third switch module of the server that needs to be switched from the standby state to the working state in the backup server to be turned on. The specific functions and processing of the control unit 104 are also shown in step S320.

[0109] like Figure 8 As shown in the figure, the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing is used for intelligent control strategies of cabinet equipment in small computer rooms, data centers, etc., and also includes:

[0110] Step 22: When the detected server currents I1-In are not within the preset normal current range, it is determined that a server current Ii among the detected server currents I1-In is in an abnormal state, and it is determined whether there is a server failure among the servers, where i is a positive integer between 1 and n. The server with abnormal server current Ii among the server currents I1-In is recorded as an abnormal server.

[0111] When the abnormal server among the servers has been identified, the stop valves at the front and rear ends of the abnormal server are controlled to be closed, and a reminder message (such as an alarm message) of the abnormality of the abnormal server is issued to wait for maintenance personnel to inspect and repair it. At the same time, the redundant backup server (i.e., the third server 202) is switched to a normal working state, that is, the backup server (i.e., the third server 202) is switched from a standby state to a normal working state and used as a main server. At this time, the third stop valve 303 and the seventh stop valve 404 at both ends of the third server 202 are opened, and the liquid cooling fluid flows forward, and finally merges with the hot fluid of the remaining servers (i.e., the remaining main servers except the abnormal server).

[0112] In some embodiments, the second switch module of the working server and the second switch module of the standby server are both arranged at the common heat exchange fluid outlet of the working server and the standby server, serving as common switch modules of the working server and the standby server.

[0113] The control unit 104 controls the faulty server to shut down, and controls the standby server to switch from a standby state to a working state, and also includes: the control unit 104 is specifically configured to, before determining that there is the faulty server in the working server, after the working server is in a working state and the standby server is in a standby state for a set time, control the third switch module of the working server to turn off, control the first switch module of the standby server to turn off, control the common switch module of the working server and the standby server to turn off, control the first switch module of the working server to turn on, and control the third switch module of the standby server to turn on, so that the heat exchange fluid of the working server flows reversely through the standby server to prevent the standby server from freezing.

[0114] like Figure 8 As shown in the figure, the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing is used for intelligent control strategies of cabinet equipment in small computer rooms, data centers, etc., and also includes:

[0115] In step 21, after working for a period of time, if the heat power consumption of the redundant backup server (i.e., the third server 202) is extremely low, while the heat power consumption of the first server 200 and the second server 201 is relatively large, in order to prevent the liquid cooling fluid flowing through the low-temperature backup server (such as the third server 202) from freezing, at this time, the third stop valve 303 and the fourth stop valve 401, the fifth stop valve 402, and the seventh stop valve 404 are controlled to be closed, and the first stop valve 301, the second stop valve 302, and the sixth stop valve 403 are opened, so that the liquid cooling fluid is collected and flows to the third server 202. In this way, the hot flow fluid that has been heat exchanged by the first server 200 and the second server 201 flows through the third server 202 in the reverse direction, thereby ensuring that the fluid flowing through the low-temperature backup server (such as the third server 202) is not frozen.

[0116] The control unit 104 is further configured to control the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device according to the outdoor environmental parameters of the cabinet air conditioning system to prevent the second heat exchange device from frosting. The specific functions and processing of the control unit 104 are also shown in step S140.

[0117] The solution of the present invention is to address the problem of high energy consumption of cabinet equipment such as small computer rooms and data centers, and more specifically to address the problem of cooling liquid freezing caused by server failure at low temperatures, as well as the problem of low frosting energy efficiency for low-temperature heating of office rooms. A set of intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing is designed. Through the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing, it is possible to intelligently detect whether the server of cabinet equipment such as small computer rooms and data centers is faulty, and whether the outdoor environmental parameters reach the frosting point of the office room air conditioner, and dynamically distribute the refrigerant flow paths of the electronic equipment room air conditioner and the office room air conditioner according to the detection results, thereby improving the energy-saving and consumption-reducing effect of cabinet equipment such as small computer rooms and data centers, and also avoiding the problem of liquid freezing when server failures at low temperatures or switching to standby servers, improving the low-temperature heating efficiency of the office room, and also avoiding the problem of defrosting temperature fluctuations to provide defrosting reliability.

[0118] In some embodiments, the control unit 104 controls the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device according to the outdoor environment parameters of the cabinet air conditioning system, including:

[0119] The control unit 104 is further configured to determine whether the outdoor environmental parameter of the cabinet air conditioning system reaches the frost point environmental parameter range of the second heat exchange device according to the outdoor environmental parameter of the cabinet air conditioning system. The specific functions and processing of the control unit 104 are also shown in step S410.

[0120] The control unit 104 is further configured to return to continue acquiring the outdoor environmental parameters of the cabinet air conditioning system if it is determined that the outdoor environmental parameters of the cabinet air conditioning system do not reach the frost point environmental parameter range of the second heat exchange device. The specific functions and processing of the control unit 104 are also shown in step S420.

[0121] The control unit 104 is further configured to control the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device if it is determined that the outdoor environmental parameter of the cabinet air conditioning system reaches the frost point environmental parameter range of the second heat exchange device, and control the second heat exchange device to continue to be in a working state. The specific functions and processing of the control unit 104 are also shown in step S430.

[0122] exist Figure 7 In the example shown, the first heat exchanger (such as an office area heat exchanger) 500 has two sets of pipelines, one set of pipelines is used for normal refrigerant heat dissipation, and the other set of pipelines is used for liquid cooling fluid heat dissipation.

[0123] In some embodiments, on the side of the second heat exchange device, the second heat exchange device includes: a first heat exchanger 500 and a second heat exchanger 501. The first heat exchanger 500 and the second heat exchanger 501 are arranged in parallel. A fourth switch module is arranged in the pipeline from a part of the heat exchange fluid of the first heat exchange device to the first heat exchanger 500. A fifth switch module is arranged in the pipeline from a part of the heat exchange fluid of the first heat exchange device to the second heat exchanger 501. The fourth switch module is, for example, a stop valve arranged at the first heat exchanger (such as an office area heat exchanger) 500. The fifth switch module is, for example, a stop valve arranged at the second heat exchanger (such as a liquid-cooled heat exchanger) 501.

[0124] like Figure 7 As shown, in a data center, an intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing specifically includes: a liquid pump 100, a first server 200, a second server 201, a third server 203, a first heat exchanger (such as an office area heat exchanger) 500 and a second heat exchanger (such as a liquid cooling heat exchanger) 501, a first stop valve 301, a second stop valve 302, a third stop valve 303, and a fourth stop valve 401, a fifth stop valve 402, a sixth stop valve 403, a seventh stop valve 404, etc.

[0125] Among them, the outlet of the liquid pump 100 is connected to the first common connection end through the pipeline. The first common connection end is divided into three paths: one path is connected to the first end of the first server 200 after passing through the first stop valve 301, and the second end of the first server 200 is connected to the second common connection end. Another path is connected to the first end of the second server 201 after passing through the second stop valve 302, and the second end of the second server 201 is connected to the second common connection end. Another path is connected to the first end of the third server 202 after passing through the third stop valve 303, and the second end of the third server 202 is connected to the second common connection end. The second common connection end is connected to the first end of the seventh stop valve 404. The first end of the first server 200 is also connected to the third common connection end after passing through the fourth stop valve 401. The first end of the second server 201 is also connected to the third common connection end after passing through the fifth stop valve 402. The first end of the third server 202 is also connected to the third common connection end after passing through the sixth stop valve 403. The second end of the seventh stop valve 404 is also connected to the third common connection end. The third common connection end is divided into two paths: one path is connected to the first end of the first heat exchanger (such as the office area heat exchanger) 500 after passing through a stop valve, and the second end of the first heat exchanger (such as the office area heat exchanger) 500 is connected to the fourth common connection end. The other path is connected to the first connection end of the second heat exchanger (such as the liquid cooling heat exchanger) 501 after passing through another stop valve, and the second end of the second heat exchanger (such as the liquid cooling heat exchanger) 501 is connected to the fourth common connection end. The fourth common connection end is connected to the inlet of the liquid pump 100.

[0126] The control unit 104 controls the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device, including: the control unit 104 is specifically configured to control the fourth switch module of the first heat exchanger 500 and / or the fifth switch module of the second heat exchanger 501 to turn on when the second switch module and / or the third switch module of the server on the first heat exchange device side are turned on, so that part of the heat exchange fluid of the first heat exchange device is diverted to the first heat exchanger 500 and / or the second heat exchanger 501, so as to avoid frosting of the first heat exchange device and affecting the heating comfort of the office room.

[0127] like Figure 8 As shown in the figure, the intelligent detection and dynamic flow distribution system for liquid cooling anti-freezing is used for intelligent control strategies of cabinet equipment in small computer rooms, data centers, etc., and also includes:

[0128] Step 3: The detected outdoor environmental parameters may include outdoor temperature T1, outdoor humidity d, etc. The outdoor temperature T1 may be an outdoor dew point temperature. The temperature difference between the outdoor humidity, dew point temperature, etc. of the outdoor air and the pipe temperature of the first heat exchanger (such as the office area heat exchanger) 500 is one of the factors affecting the frost of the first heat exchanger (such as the office area heat exchanger) 500.

[0129] When it is detected that the temperature difference between the pipe temperature of the first heat exchanger (such as the office area heat exchanger) 500 and the outdoor temperature T1, as well as the outdoor humidity d are close to the frost point range of the first heat exchanger (such as the office area heat exchanger) 500, the front one-way valve (such as the stop valve set at the first heat exchanger) of the first heat exchanger (such as the office area heat exchanger) 500 is opened, and the hot fluid liquid heat-exchanged by some servers (i.e., working servers) passes through the first heat exchanger (such as the office area heat exchanger) 500, so that the first heat exchanger (such as the office area heat exchanger) 500 starts to defrost, so that the first heat exchanger (such as the office area heat exchanger) 500 is always in a relatively efficient state, and the fluctuation and discomfort of the indoor temperature caused by the failure to provide heat during the defrosting process are avoided.

[0130] When it is detected that the temperature difference between the pipe temperature of the first heat exchanger (such as the office area heat exchanger) 500 and the outdoor temperature T1, and the outdoor humidity d have not reached the frost point of the first heat exchanger (such as the office area heat exchanger) 500, the front one-way valve (such as the stop valve set at the first heat exchanger) of the first heat exchanger (such as the office area heat exchanger) 500 is closed. At this time, the compressor of the variable refrigerant flow air-conditioning device in the office area is in normal heating mode.

[0131] Of course, based on step 2 and step 3, if a server failure is detected (i.e., an abnormal server is detected), and the temperature difference between the tube temperature of the first heat exchanger (such as the office area heat exchanger) 500 and the outdoor temperature T1, and the outdoor humidity d, etc., which are close to the frost point range of the first heat exchanger (such as the office area heat exchanger) 500, occur simultaneously, then the two processes are controlled in parallel, that is, step 2 and step 3 are executed simultaneously.

[0132] The solution of the present invention intelligently controls the flow direction and distribution of liquid in the flow path through temperature and server current detection, can quickly switch the backup server, and can prevent the outdoor heat exchanger, i.e., the first heat exchanger (such as the office area heat exchanger) 500 from frosting. Therefore, through intelligent detection and dynamic distribution of the flow path, the problem of low-temperature server failure or liquid freezing during switching is avoided, the low-temperature heating efficiency of the office room air conditioner is improved, and the problem of defrosting temperature fluctuation of the office room air conditioner is avoided.

[0133] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0134] By adopting the technical solution of the present invention, the working conditions of the servers in the electronic equipment room and the office room in the cabinet equipment are detected, and the outdoor environmental parameters of the cabinet equipment are detected. According to the working conditions of the servers and / or the outdoor environmental parameters, the refrigerant flow paths of the air conditioners in the electronic equipment room and the office room are dynamically allocated, thereby improving the energy saving and consumption reduction effects of cabinet equipment such as small computer rooms and data centers.

[0135] According to an embodiment of the present invention, a cabinet air conditioning system corresponding to the control device of the cabinet air conditioning system is also provided. The cabinet air conditioning system may include: the control device of the cabinet air conditioning system described above.

[0136] Since the processing and functions implemented by the cabinet air conditioning system of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0137] By adopting the technical solution of the present invention, the working conditions of the servers in the electronic equipment room and the office room in the cabinet equipment are detected, and the outdoor environmental parameters of the cabinet equipment are detected. According to the working conditions of the servers and / or the outdoor environmental parameters, the refrigerant flow paths of the electronic equipment room air conditioner and the office room air conditioner are dynamically allocated, thereby avoiding server failure at low temperatures or liquid freezing when switching to a backup server, and improving the low-temperature heating efficiency of the office room air conditioner.

[0138] According to an embodiment of the present invention, a storage medium corresponding to a control method for a cabinet air conditioning system is also provided, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the control method for the cabinet air conditioning system described above.

[0139] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0140] By adopting the technical solution of the present invention, the working conditions of the servers in the electronic equipment room and the office room in the cabinet equipment are detected, and the outdoor environmental parameters of the cabinet equipment are detected. According to the working conditions of the servers and / or the outdoor environmental parameters, the refrigerant flow paths of the electronic equipment room air conditioner and the office room air conditioner are dynamically allocated, thereby avoiding the problem of defrosting temperature fluctuations of the office room air conditioner and improving the low-temperature heating efficiency of the office room air conditioner.

[0141] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0142] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A control method for a cabinet air conditioning system, characterized in that: The cabinet air conditioning system includes: an electronic equipment room air conditioner and an office room air conditioner; the electronic equipment room air conditioner includes: a first heat exchange device, the first heat exchange device is n servers, n is a positive integer; a part of the n servers in working state are working servers, and the remaining servers in standby state are standby servers; the office room air conditioner includes: a second heat exchange device; the first heat exchange device and the second heat exchange device are connected by a pipeline to form a liquid cooling air conditioning system; The control method of the cabinet air conditioning system comprises: When the cabinet air conditioning system is started and running, the working server in the first heat exchange device is controlled to be in working state, the standby server is controlled to be in standby state, and the second heat exchange device is controlled to be in working state; Obtaining the current current of the working server and obtaining the outdoor environmental parameters of the cabinet air conditioning system; According to the current current of the working server, controlling the working server and the standby server to switch operation; According to the outdoor environmental parameters of the cabinet air conditioning system, controlling the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device; By testing the working conditions of the servers in the electronic equipment room and the office room in the cabinet equipment, and testing the outdoor environmental parameters of the cabinet equipment, the refrigerant flow paths of the electronic equipment room air conditioners and the office room air conditioners are dynamically allocated according to the working conditions of the servers and the outdoor environmental parameters.

2. The control method of the cabinet air conditioning system according to claim 1, characterized in that: According to the current current of the working server, controlling the working server and the standby server to switch operation includes: Determining whether the current current of the working server is within a preset normal current range according to the current current of the working server; If it is determined that the current current of the working server is within the preset normal current range, it is determined that there is no faulty server in the working server, and the process returns to continue to obtain the current current of the working server; If it is determined that the current current of a server among the working servers is not within the preset normal current range, it is determined that there is a faulty server among the working servers, and the faulty server is controlled to shut down, and the standby server is controlled to switch from the standby state to the working state.

3. The control method of the cabinet air conditioning system according to claim 2, characterized in that: On the first heat exchange device side, a first switch module is provided at the heat exchange fluid inlet end of each server, and a second switch module is provided at the heat exchange fluid outlet end of each server; a third switch module is also provided in the pipeline between the pipeline between the first switch module of each server and the heat exchange fluid inlet end of the server and the pipeline between the second switch module of the server and the second heat exchange device; Controlling the failed server to shut down, and controlling the standby server to switch from a standby state to a working state, comprising: When the working server is in working state and the standby server is in standby state, the first switch module, the second switch module and the third switch module of each server in the working server are controlled to be turned on, and the first switch module, the second switch module and the third switch module of each server in the standby server are controlled to be turned off; In the case where there is the faulty server among the working servers, the first switch module, the second switch module and the third switch module of the faulty server are all turned off, and the first switch module, the second switch module and the third switch module of the server in the backup server that needs to switch from the standby state to the working state are all turned on.

4. The control method of the cabinet air conditioning system according to claim 3, characterized in that: The second switch module of the working server and the second switch module of the standby server are both arranged at the common heat exchange fluid outlet of the working server and the standby server, serving as the common switch module of the working server and the standby server; Controlling the failed server to shut down, and controlling the standby server to switch from a standby state to a working state, further comprising: Before determining that there is the faulty server in the working server, after the working server is in working state and the standby server is in standby state for a set time, control the third switch module of the working server to be turned off, control the first switch module of the standby server to be turned off, control the common switch module of the working server and the standby server to be turned off, control the first switch module of the working server to be turned on, and control the third switch module of the standby server to be turned on, so that the heat exchange fluid of the working server flows reversely through the standby server.

5. The control method of the cabinet air conditioning system according to any one of claims 1 to 4, characterized in that: According to the outdoor environmental parameters of the cabinet air conditioning system, controlling the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device includes: Determining, according to the outdoor environmental parameters of the cabinet air conditioning system, whether the outdoor environmental parameters of the cabinet air conditioning system reach the frost point environmental parameter range of the second heat exchange device; If it is determined that the outdoor environmental parameter of the cabinet air conditioning system does not reach the frost point environmental parameter range of the second heat exchange device, return to continue to obtain the outdoor environmental parameter of the cabinet air conditioning system; If it is determined that the outdoor environmental parameters of the cabinet air conditioning system reach the frost point environmental parameter range of the second heat exchange device, the first heat exchange device is controlled to distribute part of the heat exchange fluid to the second heat exchange device, and the second heat exchange device is controlled to continue to be in working state.

6. The control method of the cabinet air conditioning system according to claim 5, characterized in that: On the second heat exchange device side, the second heat exchange device comprises: a first heat exchanger (500) and a second heat exchanger (501); the first heat exchanger (500) and the second heat exchanger (501) are arranged in parallel; a fourth switch module is arranged in a pipeline from a part of the heat exchange fluid of the first heat exchange device to the first heat exchanger (500); a fifth switch module is arranged in a pipeline from a part of the heat exchange fluid of the first heat exchange device to the second heat exchanger (501); Controlling the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device includes: When the second switch module and / or the third switch module of the server on the first heat exchange device side are turned on, the fourth switch module of the first heat exchanger (500) and / or the fifth switch module of the second heat exchanger (501) are controlled to be turned on, so that part of the heat exchange fluid of the first heat exchange device is diverted to the first heat exchanger (500) and / or the second heat exchanger (501).

7. A control device for a cabinet air conditioning system, characterized in that: The cabinet air conditioning system includes: an electronic equipment room air conditioner and an office room air conditioner; the electronic equipment room air conditioner includes: a first heat exchange device, the first heat exchange device is n servers, n is a positive integer; a part of the n servers in working state are working servers, and the remaining servers in standby state are standby servers; the office room air conditioner includes: a second heat exchange device; the first heat exchange device and the second heat exchange device are connected by a pipeline to form a liquid cooling air conditioning system; The control device of the cabinet air conditioning system comprises: a control unit configured to control the working server in the first heat exchange device to be in a working state and the standby server to be in a standby state, and control the second heat exchange device to be in a working state when the cabinet air conditioning system is started and running; an acquisition unit, configured to acquire the current current of the working server and acquire the outdoor environmental parameters of the cabinet air conditioning system; The control unit is further configured to control the working server and the standby server to switch operation according to the current current of the working server; The control unit is further configured to control the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device according to the outdoor environmental parameters of the cabinet air conditioning system; By testing the working conditions of the servers in the electronic equipment room and the office room in the cabinet equipment, and testing the outdoor environmental parameters of the cabinet equipment, the refrigerant flow paths of the electronic equipment room air conditioners and the office room air conditioners are dynamically allocated according to the working conditions of the servers and the outdoor environmental parameters.

8. The control device of the cabinet air conditioning system according to claim 7, characterized in that: The control unit controls the working server and the standby server to switch operation according to the current current of the working server, including: Determining whether the current current of the working server is within a preset normal current range according to the current current of the working server; If it is determined that the current current of the working server is within the preset normal current range, it is determined that there is no faulty server in the working server, and the process returns to continue to obtain the current current of the working server; If it is determined that the current current of a server among the working servers is not within the preset normal current range, it is determined that there is a faulty server among the working servers, and the faulty server is controlled to shut down, and the standby server is controlled to switch from the standby state to the working state.

9. The control device of the cabinet air conditioning system according to claim 8, characterized in that: On the first heat exchange device side, a first switch module is provided at the heat exchange fluid inlet end of each server, and a second switch module is provided at the heat exchange fluid outlet end of each server; a third switch module is also provided in the pipeline between the pipeline between the first switch module of each server and the heat exchange fluid inlet end of the server and the pipeline between the second switch module of the server and the second heat exchange device; The control unit controls the failed server to shut down and controls the standby server to switch from a standby state to a working state, including: When the working server is in working state and the standby server is in standby state, the first switch module, the second switch module and the third switch module of each server in the working server are controlled to be turned on, and the first switch module, the second switch module and the third switch module of each server in the standby server are controlled to be turned off; In the case where there is the faulty server among the working servers, the first switch module, the second switch module and the third switch module of the faulty server are all turned off, and the first switch module, the second switch module and the third switch module of the server in the backup server that needs to switch from the standby state to the working state are all turned on.

10. The control device of the cabinet air conditioning system according to claim 9, characterized in that: The second switch module of the working server and the second switch module of the standby server are both arranged at the common heat exchange fluid outlet of the working server and the standby server, serving as the common switch module of the working server and the standby server; The control unit controls the failed server to shut down and controls the standby server to switch from a standby state to a working state, and further includes: Before determining that there is the faulty server in the working server, after the working server is in working state and the standby server is in standby state for a set time, control the third switch module of the working server to be turned off, control the first switch module of the standby server to be turned off, control the common switch module of the working server and the standby server to be turned off, control the first switch module of the working server to be turned on, and control the third switch module of the standby server to be turned on, so that the heat exchange fluid of the working server flows reversely through the standby server.

11. The control device of the cabinet air conditioning system according to any one of claims 7 to 10, characterized in that: The control unit controls the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device according to the outdoor environment parameter of the cabinet air conditioning system, including: Determining, according to the outdoor environmental parameters of the cabinet air conditioning system, whether the outdoor environmental parameters of the cabinet air conditioning system reach the frost point environmental parameter range of the second heat exchange device; If it is determined that the outdoor environmental parameter of the cabinet air conditioning system does not reach the frost point environmental parameter range of the second heat exchange device, return to continue to obtain the outdoor environmental parameter of the cabinet air conditioning system; If it is determined that the outdoor environmental parameters of the cabinet air conditioning system reach the frost point environmental parameter range of the second heat exchange device, the first heat exchange device is controlled to distribute part of the heat exchange fluid to the second heat exchange device, and the second heat exchange device is controlled to continue to be in working state.

12. The control device of the cabinet air conditioning system according to claim 11, characterized in that: On the second heat exchange device side, the second heat exchange device comprises: a first heat exchanger (500) and a second heat exchanger (501); the first heat exchanger (500) and the second heat exchanger (501) are arranged in parallel; a fourth switch module is arranged in a pipeline from a part of the heat exchange fluid of the first heat exchange device to the first heat exchanger (500); a fifth switch module is arranged in a pipeline from a part of the heat exchange fluid of the first heat exchange device to the second heat exchanger (501); The control unit controls the first heat exchange device to distribute part of the heat exchange fluid to the second heat exchange device, including: When the second switch module and / or the third switch module of the server on the first heat exchange device side are turned on, the fourth switch module of the first heat exchanger (500) and / or the fifth switch module of the second heat exchanger (501) are controlled to be turned on, so that part of the heat exchange fluid of the first heat exchange device is diverted to the first heat exchanger (500) and / or the second heat exchanger (501).

13. A cabinet air conditioning system, characterized in that: include: A control device for a cabinet air conditioning system according to any one of claims 7 to 12.

14. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the control method of the cabinet air conditioning system according to any one of claims 1 to 6.

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