Intelligent mode switching system of water chilling unit of data center refrigerating system

Abstract

The invention relates to an intelligent mode switching system of a water chilling unit of a data center refrigerating system in the field of water chilling units, which comprises a water chilling unit and a control terminal, and a control module, a monitoring module, a data processing module and a mode management module are arranged in the control terminal; the control module is used for controlling and adjusting the working state of the water chilling unit; the control module is connected with a plurality of cooling subareas; a transfer structure is connected between every two adjacent cooling subareas. The transfer structure is used for isolating the cooling subareas and adjusting flowing of cooling liquid in the cooling subareas. Standby cooling liquid is stored in the transfer structure; the monitoring module is used for collecting monitoring data of each cooling partition, and the mode management module is provided with a common mode, an isolated mode and a reset mode; the working state and the environment state of each cooling zone can be monitored conveniently, and when monitoring data is abnormal, the cooling zone is adjusted to be in an isolated mode and self-detection is carried out, so that the cooling zone with abnormal operation data stops working in time to be overhauled.

Description

Technical Field

[0001] The present invention relates to a mode intelligent switching system for a chiller of a data center refrigeration system, and in particular to a mode intelligent switching system for a chiller of a data center refrigeration system applied in the field of chillers. Background Art

[0002] The existing data center chiller mode automatic switching system is mainly aimed at the cooling needs of the data center to ensure efficient and reliable cooling under different load and environmental conditions. The cooling system of the data center usually includes key components such as chillers, cooling towers, circulation pumps, and cooling water pipes. The chiller is the core of the data center cooling system and is responsible for generating low-temperature cooling water to absorb the heat generated by equipment such as servers.

[0003] Traditional chiller mode switching mainly relies on manual operation, manually adjusting the chiller's operating mode according to factors such as seasonal changes, equipment load and ambient temperature.

[0004] In order to solve the problems of slow response and low efficiency of manual switching, a certain chiller in the market adopts the design of automatic switching system, which has a certain market share.

[0005] The specification of Chinese invention patent CN103673230B discloses an operation control device and control method for a complex water cooling system in a data center. The device includes a water cooling system, a central controller, a temperature detection device and an electric valve controller. Each group of water-cooled air-conditioning outdoor units is connected in parallel between a water-cooled water inlet main pipeline and a water-cooled water return main pipeline through a branch pipe and is connected to a water-cooled air-conditioning indoor unit. Each group of water-cooled air-conditioning outdoor units includes a water-cooled air-conditioning outdoor unit, a dry cooler, an electric valve and an electric three-way regulating valve. The invention not only avoids the potential risks caused by manual operation errors and operation switching shocks, but also effectively solves the problem of automatic control of multiple air-conditioning units and pipelines, and facilitates maintenance.

[0006] The specification of Chinese invention patent CN104833153B discloses a control circuit of a marine chiller, including an automatic control circuit, a manual control circuit and a control panel. The automatic control circuit and the manual control circuit are electrically connected to the control panel respectively, and the automatic control circuit and the manual control circuit are electrically connected to the fault lights of the marine chiller respectively. The control circuit and method of the marine chiller of the invention can ensure that the marine chiller can be reliably started when the automatic control circuit fails, and the operation is simple and convenient.

[0007] When existing chillers cool multiple cooling zones, it is inconvenient to monitor each cooling zone, and it is also inconvenient to adjust the operation according to the status of each cooling zone. Summary of the invention

[0008] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when the existing chiller cools multiple cooling areas, it is inconvenient to monitor each cooling area and to adjust the operation according to the status of each cooling area.

[0009] In order to solve the above problems, the present invention provides a mode intelligent switching system of a chiller of a data center refrigeration system, comprising a chiller and a control terminal, wherein a plurality of cooling partitions are connected to the chiller, the chiller is used for circulating water cooling the plurality of cooling partitions, a liquid infusion pipe is connected between the chiller and the plurality of cooling partitions, at least one water cooling pipe row is arranged in the cooling partition, and a control module, a monitoring module, a data processing module and a mode management module are arranged in the control terminal; A control module is used to control and adjust the working state of the chiller; a plurality of cooling partitions are connected to the control module; a transfer structure is connected between two adjacent cooling partitions; the transfer structure is used to isolate the cooling partitions and adjust the flow of coolant in the cooling partitions; spare coolant is stored in the transfer structure; Monitoring module, used to collect monitoring data of each cooling zone, including: operating temperature, cooling efficiency, coolant pressure and flow rate; The mode management module is provided with a normal mode, an isolated mode and a reset mode; When the normal mode is in operation, the chiller operates according to preset parameters; When the reset mode is in operation, the coolant in the designated cooling partition is reset, and the coolant in the cooling partition is replaced by the transfer structure, so that the spare coolant replaces the coolant in the cooling partition; When the isolated mode is working, the transfer structure isolates the cooling partition from the chiller, and then the coolant in the cooling partition is self-circulated through the transfer structure. During the self-circulation process, the monitoring module collects monitoring data; The data processing module is used to process the monitoring data and determine the working status of the cooling partition.

[0010] In the above-mentioned intelligent mode switching system of the chiller of the data center refrigeration system, it is convenient to monitor the working status and environmental status of each cooling zone in real time. When the monitoring data is abnormal, the cooling zone is adjusted to the isolated mode for detailed self-inspection.

[0011] As a further improvement of the present application, the transfer structure includes a first storage tank and a second storage tank matched with the chiller, a path switcher is connected between the first storage tank and the second storage tank, spare coolant is stored in the first storage tank, and a cooling fan is connected to the second storage tank; the first storage tank is used for coolant recovery; the second storage tank is used for coolant output; The path switcher includes a flow guide shell connected to a circulating liquid pump, a pair of transfer tubes connected to the first storage tank and the second storage tank are fixedly connected to the flow guide shell, the transfer tube includes a connecting tube connected to the second storage tank or the first storage tank, a liquid guide tube is fixedly connected to the connecting tube, a one-way valve is fixedly connected to the liquid guide tube, a liquid inlet channel and a liquid discharge channel are opened in the connecting tube, and an electromagnetic opening and closing valve is connected between the liquid inlet channel and the liquid discharge channel; A pair of one-way valves respectively connected to the liquid inlet channel and the liquid discharge channel are installed on the liquid guide pipe, the two ends of the guide shell are movably connected with the liquid inlet pipe and the liquid outlet pipe, a pair of electric push rods are fixedly connected in the guide shell, the power output ends of the two electric push rods are respectively connected to a pair of liquid inlet pipes and a pair of liquid outlet pipes, the liquid inlet pipe and the liquid outlet pipe are fixedly connected with docking joints matching the one-way valves, a sealing valve plate matching the liquid guide pipe is fixedly connected to the outer wall of the liquid outlet pipe, and water inlet holes and water outlet holes are respectively provided at the upper and lower ends of the liquid inlet pipe.

[0012] As a further improvement of the present application, a plurality of cooling pipe groups are arranged in the cooling zone, and the cooling pipe groups include air-cooled pipe rows and liquid-cooled pipe rows. The plurality of cooling pipe groups are all connected to the cooling unit through a transfer structure, and the air-cooled pipe rows are connected to the cooling fan.

[0013] As a further improvement of the present application, the second storage tank includes a main tank body, to which heat exchange fins are fixedly connected, to which a heat exchange jacket is fixedly connected, and the heat exchange jacket is communicated with an output end of the cooling fan.

[0014] As another improvement of the present application, when the reset mode is working, the coolant in each cooling zone is first transferred into the second storage tank. During the transfer process, the cooling fan operates at a set power to input cooling air flow into the cooling air duct, and each cooling zone is compensated for cooling through the air cooling duct. Then, the spare coolant stored in the first storage tank is output to the cooling zone.

[0015] As another improvement supplement to the present application, when the monitoring data of any cooling partition is out of the set range, the cooling partition is set to isolated mode; the monitoring data collected when working in isolated mode is processed and judged, and the data processing module processes the cooling partition monitoring data collected when working in isolated mode. When the type of monitoring data exceeds the set data and is inconsistent with the standard set value range, the cooling partition is set to reset mode.

[0016] After the reset mode is completed, the coolant stored in the first storage tank is tested to determine whether the coolant is contaminated or leaked.

[0017] An electromagnetic three-way valve is connected between one end of the liquid guide tube and the infusion tube, and the other end of the liquid guide tube is connected to the water cooling pipe row in the cooling zone. A sealing groove matching the sealing valve plate is opened in the middle of the liquid guide tube.

[0018] In summary, the present solution facilitates monitoring of the working status and environmental status of each cooling partition. When the monitoring data is abnormal, the cooling partition is adjusted to an isolated mode. At this time, the cooling partition performs self-circulation through the transfer structure, and then performs detailed data collection and data analysis on the target cooling partition. By performing self-circulation detection on the cooling partition in the isolated state and self-circulation detection after resetting the coolant, it is easy to accurately adjust the work of the cooling partition according to the operating status of the cooling partition, so that the cooling partition with abnormal operating data can suspend work in time for maintenance, thereby ensuring stable cooling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a block diagram of a mode intelligent switching system according to the first embodiment of the present application; Figure 2 This is a schematic diagram of the connection between the chiller and the cooling partition in the first embodiment of the present application; Figure 3 This is a three-dimensional diagram of the transfer structure of the second embodiment of the present application; Figure 4 This is a schematic diagram of the path of the coolant when it is input into the cooling partition through the transfer structure in the second embodiment of the present application; Figure 5 A schematic diagram of a coolant path when the transfer structure of the second embodiment of the present application performs an isolated mode operation; Figure 6 This is a cross-sectional view of the transfer structure of the second embodiment of the present application; Figure 7 for Figure 6 Schematic diagram of the structure at A in the middle.

[0020] Description of the numbers in the figure: 1 chiller, 2 first storage tank, 3 second storage tank, 31 main tank body, 32 heat exchange fins, 33 heat exchange jacket, 4 path switcher, 41 guide shell, 42 liquid inlet pipe, 43 liquid outlet pipe, 44 sealing valve plate, 45 electric push rod, 5 adapter pipe, 51 connecting pipe, 52 liquid guide pipe, 53 one-way valve, 54 electromagnetic opening and closing valve. DETAILED DESCRIPTION

[0021] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0022] The first implementation method: Figure 1-5It is shown that a mode intelligent switching system of a chiller of a data center refrigeration system includes a chiller 1 and a control terminal. A plurality of cooling partitions are connected to the chiller 1. The chiller 1 is used to circulate water cooling for the plurality of cooling partitions. Infusion pipes are connected between the chiller 1 and the plurality of cooling partitions. At least one water-cooling pipe row is arranged in the cooling partition. The chiller 1 adopts the existing technology. The chiller 1 is provided with three working modes: natural cold source plate exchange mode, precooling mode and chiller mode. The above three working modes are the working modes of the chiller 1 in the existing technology, and will not be described in detail in this scheme. The control terminal is provided with a control module, a monitoring module, a data processing module and a mode management module; A control module is used to control and adjust the working state of the chiller 1; a plurality of cooling partitions are connected to the control module; a transfer structure is connected between two adjacent cooling partitions; the transfer structure is used to isolate the cooling partitions and adjust the flow of coolant in the cooling partitions; spare coolant is stored in the transfer structure; Monitoring module, used to collect monitoring data of each cooling zone, including: operating temperature, cooling efficiency, coolant pressure and flow rate; A data processing module, used to process monitoring data and determine the working status of the cooling partition; The mode management module is provided with a normal mode, an isolated mode and a reset mode; When working in normal mode, the chiller 1 works according to preset parameters; at this time, the chiller 1 is set to the cooling mode; When the reset mode is working, the coolant of the designated cooling partition is reset. At this time, the coolant of the cooling partition is replaced by the transfer structure, so that the spare coolant replaces the coolant in the cooling partition; When working in the isolated mode, the transfer structure isolates the cooling partition from the chiller 1, and then the coolant in the cooling partition self-circulates through the transfer structure. During the self-circulation process, the monitoring module collects monitoring data; When working in isolated mode, the designated cooling partition can realize self-circulation; by monitoring the self-circulation working status of the cooling partition, it is determined whether the operation is abnormal. If it is normal, the connection between the cooling partition and the main system is restored.

[0023] When the monitoring data of any cooling partition is not within the set range, the cooling partition is set to the isolated mode; the monitoring data collected when the isolated mode is working is processed and judged, and the data processing module processes the cooling partition monitoring data collected when the isolated mode is working. When the monitoring data type exceeding the set data does not match the standard set value range, the cooling partition is set to the reset mode; When the reset mode is working, the coolant in the cooling partition is replaced by the spare coolant to realize the renewal of the coolant in the cooling partition; Then restore the self-circulation of the coolant in the cooling partition, and re-collect the monitoring data during self-circulation. If there is still a situation where the monitoring data type exceeds the set data and does not match the standard set value range, the system will alarm and set the cooling partition to standby mode. In standby mode, the self-circulation of the coolant is stopped.

[0024] Optionally, after the reset mode is completed, the coolant stored in the first storage tank 2 is tested. During the test, the total amount and liquid composition of the stored coolant are tested to determine whether the coolant is contaminated and leaked.

[0025] Second implementation method: Figure 3-7 As shown, the transfer structure includes a first storage tank 2 and a second storage tank 3 matched with the chiller 1, a path switch 4 is connected between the first storage tank 2 and the second storage tank 3, the first storage tank 2 stores spare coolant, and the second storage tank 3 is connected to a cooling fan; the first storage tank 2 is used for coolant recovery; the second storage tank 3 is used for coolant output; The path switch 4 includes a flow guide shell 41 connected to a circulating liquid pump, a pair of transfer tubes 5 respectively connected to the first storage tank 2 and the second storage tank 3 are fixedly connected to the flow guide shell 41, the transfer tube 5 includes a connecting tube 51 communicating with the second storage tank 3 or the first storage tank 2, a liquid guide tube 52 is fixedly connected to the connecting tube 51, a one-way valve 53 is fixedly connected to the liquid guide tube 52, the one-way valve 53 includes a shell that closes the top of the liquid guide tube 52, a valve disc is inserted in the middle of the shell, a plurality of through holes are opened at the side end of the valve disc, and a self-resetting spring is connected between the valve disc and the shell; A liquid inlet channel and a liquid discharge channel are provided in the connecting pipe 51, a pair of one-way valves 53 are installed on the liquid guide pipe 52, and are communicated with the liquid inlet channel and the liquid discharge channel respectively. An electromagnetic opening and closing valve 54 is connected between the liquid inlet channel and the liquid discharge channel; a conduit with a flow valve is installed on the output end of the liquid inlet channel and the liquid discharge channel, and the conduit is connected to the first storage tank 2 or the second storage tank 3; Both ends of the guide shell 41 are movably connected with a liquid inlet pipe 42 and a liquid outlet pipe 43, and solenoid valves are installed on the liquid inlet pipe 42 and the liquid outlet pipe 43. When the liquid inlet pipe 42 and the liquid outlet pipe 43 are not connected to the one-way valve 53, the solenoid valve is in a closed state. After the liquid inlet pipe 42 and the liquid outlet pipe 43 are connected to the one-way valve 53, the valve disc opens and the solenoid valve is adjusted to an open state. A pair of inner flow guide tubes are provided in the flow guide shell 41, which are matched with the liquid inlet tube 42 and the liquid outlet tube 43 respectively. Both ends of the inner flow guide tubes are fixedly connected with fixed tubes inserted into one end of the liquid inlet tube 42 or the liquid outlet tube 43. A pair of electric push rods 45 are fixedly connected in the flow guide shell 41, and the power output ends of the two electric push rods 45 are connected with the pair of liquid inlet tubes 42 and the pair of liquid outlet tubes 43 respectively. The liquid inlet pipe 42 and the liquid outlet pipe 43 are both fixedly connected with a butt joint matching the one-way valve 53. The outer wall of the liquid outlet pipe 43 is fixedly connected with a sealing valve plate 44 matching the liquid guide pipe 52. The upper and lower ends of the liquid inlet pipe 42 are respectively provided with a water inlet hole and a water outlet hole. When the valve disc of the one-way valve 53 is pushed out by the liquid inlet pipe 42, the water outlet hole matches the through hole on the valve disc. A plurality of cooling tube groups are arranged in the cooling zone, and the cooling tube groups include air-cooling tube rows and liquid-cooling tube rows. The plurality of cooling tube groups are connected to the cooling unit through a transfer structure, and the air-cooling tube rows are connected to the cooling fan.

[0026] The second storage tank 3 includes a main tank body 31, a heat exchange fin 32 is fixedly connected to the main tank body 31, a heat exchange sleeve 33 is fixedly connected to the heat exchange fin 32, and the heat exchange sleeve 33 is communicated with the output end of the cooling fan. The volume of the second storage tank 3 matches the total amount of coolant corresponding to the cooling partition; when all the coolant in the cooling partition is discharged, it can be stored in the second storage tank 3; When the reset mode is working, the coolant in each cooling zone is first transferred into the second storage tank 3. During the transfer process, the cooling fan operates at the set power to input cooling air into the cooling air duct, and each cooling zone is compensated for cooling through the air cooling duct. Then, the spare coolant stored in the first storage tank 2 is output to the cooling zone.

[0027] An electromagnetic three-way valve is connected between one end of the liquid guide tube 52 and the liquid infusion tube, and the other end of the liquid guide tube 52 is connected to the water cooling pipe row in the cooling zone. A sealing groove matching the sealing valve plate 44 is opened in the middle of the liquid guide tube 52; When the cooling partition of this scheme works normally, the input and output of the coolant are respectively carried out through two liquid guide pipes; When the transfer structure of the present invention is in isolated mode, the electric push rod 45 works to move the liquid inlet pipe 42 and the liquid outlet pipe 43 downward and dock with the one-way valve 53, so that the valve flap of the one-way valve 53 is opened. At this time, the liquid inlet channel and the liquid outlet channel in the connecting pipe 51 are connected to the liquid inlet pipe 42 and the liquid outlet pipe 43 respectively. At this time, the coolant discharged from the cooling partition is input into the liquid guide pipe 52 connected to the first storage tank 2. After the coolant is input, it flows into the liquid inlet channel through the liquid inlet pipe 42. At this time, the electromagnetic opening and closing valve 54 is opened and the flow valve on the transfer pipe 5 is closed. The coolant passes through the electromagnetic opening and closing valve 54 and enters the liquid discharge channel, and then is discharged into the guide shell 41 through the liquid outlet pipe 43; After passing through the guide shell 41, the coolant enters the liquid outlet pipe 43 of another transfer tube 5, and is discharged into the discharge channel of another transfer tube 5. Here, the electromagnetic opening and closing valve in the transfer tube 5 is closed, and after leaving the discharge channel, it enters the second storage tank 3 through the conduit; the coolant exchanges heat and cools down through the heat exchange fins 32 on the second storage tank 3, and then is input into the liquid inlet channel of the transfer tube 5 through another conduit. After leaving the liquid inlet channel, the coolant enters the liquid guide pipe 52 and then is input into the cooling partition; thereby, the self-circulation of the coolant output from the cooling partition is realized; The transfer structure of this embodiment facilitates the rapid switching of the cooling partition to an isolated state, facilitates the self-circulation of the coolant in the cooling partition, and facilitates the auxiliary mode intelligent switching system to perform self-inspection of each cooling partition.

[0028] To sum up, when the system of this scheme is working, it monitors the working status and environmental status of each cooling partition of the chiller 1. When the monitoring data is abnormal, the cooling partition is adjusted to the isolated mode; at this time, the cooling partition is self-circulated through the transfer structure, and then detailed data collection and data analysis are carried out for the target cooling partition; by performing self-circulation detection on the cooling partition in the isolated state and the self-circulation detection after resetting the coolant, it is easy to accurately adjust its work according to the operating status of the cooling partition, so that the cooling partition with abnormal operating data can suspend work in time for maintenance, so as to ensure stable cooling work.

[0029] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A mode intelligent switching system for a chiller of a data center refrigeration system, comprising a chiller (1) and a control terminal, wherein the chiller (1) is connected to a plurality of cooling zones, the chiller (1) is used for circulating water cooling the plurality of cooling zones, a liquid infusion pipe is connected between the chiller (1) and the plurality of cooling zones, and at least one water cooling pipe row is arranged in the cooling zone, characterized in that: The control terminal is provided with a control module, a monitoring module, a data processing module and a mode management module; The control module is used to control and adjust the working state of the chiller (1); a plurality of cooling partitions are connected to the control module; a transfer structure is connected between two adjacent cooling partitions; the transfer structure is used to isolate a cooling partition and adjust the flow of coolant in the cooling partition; The transfer structure stores spare coolant; The monitoring module is used to collect monitoring data of each cooling zone, and the monitoring data includes: operating temperature, cooling efficiency, coolant pressure and flow rate; The mode management module is provided with a normal mode, an isolated mode and a reset mode; When operating in the normal mode, the chiller (1) operates according to preset parameters; When the reset mode is in operation, the coolant in the designated cooling partition is reset, and the coolant in the cooling partition is replaced by the transfer structure, so that the spare coolant replaces the coolant in the cooling partition; When the isolated mode is working, the transfer structure isolates the cooling partition from the chiller (1), and then the coolant in the cooling partition self-circulates through the transfer structure. During the self-circulation process, the monitoring module collects monitoring data; The data processing module is used to process the monitoring data and determine the working status of the cooling partition.

2. According to claim 1, a mode intelligent switching system for a chiller of a data center refrigeration system is characterized by: The transfer structure comprises a first storage tank (2) and a second storage tank (3) matched with the chiller (1); a path switcher (4) is connected between the first storage tank (2) and the second storage tank (3); spare coolant is stored in the first storage tank (2); and a cooling fan is connected to the second storage tank (3); the first storage tank (2) is used for coolant recovery; and the second storage tank (3) is used for coolant output; The path switch (4) comprises a flow guide shell (41) connected to a circulating liquid pump, a pair of transfer pipes (5) respectively connected to the first storage tank (2) and the second storage tank (3) are fixedly connected to the flow guide shell (41), the transfer pipe (5) comprises a connecting pipe (51) communicating with the second storage tank (3) or the first storage tank (2), a liquid guide pipe (52) is fixedly connected to the connecting pipe (51), a one-way valve (53) is fixedly connected to the liquid guide pipe (52), a liquid inlet channel and a liquid discharge channel are provided in the connecting pipe (51), and an electromagnetic opening and closing valve (54) is connected between the liquid inlet channel and the liquid discharge channel; A pair of one-way valves (53) respectively communicating with the liquid inlet channel and the liquid discharge channel are installed on the liquid guide tube (52); both ends of the flow guide shell (41) are movably connected with the liquid inlet tube (42) and the liquid outlet tube (43); a pair of electric push rods (45) are fixedly connected inside the flow guide shell (41); the power output ends of the two electric push rods (45) are respectively connected with the pair of liquid inlet tubes (42) and the pair of liquid outlet tubes (43); the liquid inlet tube (42) and the liquid outlet tube (43) are both fixedly connected with a butt joint matching the one-way valve (53); the outer wall of the liquid outlet tube (43) is fixedly connected with a sealing valve plate (44) matching the liquid guide tube (52); and the upper and lower ends of the liquid inlet tube (42) are respectively provided with a water inlet hole and a water outlet hole.

3. The intelligent mode switching system of a chiller of a data center refrigeration system according to claim 2, characterized in that: A plurality of cooling tube groups are arranged in the cooling partition, and the cooling tube groups include air-cooling tube rows and liquid-cooling tube rows. The plurality of cooling tube groups are connected to the cooling unit through a transfer structure, and the air-cooling tube rows are connected to the cooling fan.

4. The intelligent mode switching system of a chiller of a data center refrigeration system according to claim 2, characterized in that: The second storage tank (3) comprises a main tank body (31), a heat exchange fin (32) being fixedly connected to the main tank body (31), a heat exchange sleeve (33) being fixedly connected to the heat exchange fin (32), and the heat exchange sleeve (33) being communicated with an output end of a cooling fan.

5. The intelligent mode switching system of a chiller of a data center refrigeration system according to claim 2, characterized in that: When the reset mode is in operation, the coolant in each cooling zone is first transferred into the second storage tank (3). During the transfer process, the cooling fan operates at a set power to input cooling air into the cooling air duct, and each cooling zone is compensated for cooling through the air cooling duct. Then, the spare coolant stored in the first storage tank (2) is output to the cooling zone.

6. The intelligent mode switching system for a chiller of a data center refrigeration system according to claim 2, characterized in that: When the monitoring data of any cooling partition is not within the set range, the cooling partition is set to isolated mode; the monitoring data collected when the isolated mode is working is processed and judged. The data processing module processes the cooling partition monitoring data collected when the isolated mode is working. When the monitoring data type exceeds the set data and does not match the standard set value range, the cooling partition is set to reset mode.

7. The intelligent mode switching system of a chiller of a data center refrigeration system according to claim 6, characterized in that: After the reset mode is completed, the coolant stored in the first storage tank (2) is tested to determine whether the coolant is contaminated or leaking.

8. The intelligent mode switching system of a chiller of a data center refrigeration system according to claim 2, characterized in that: An electromagnetic three-way valve is connected between one end of the liquid guide tube (52) and the liquid infusion tube, the other end of the liquid guide tube (52) is connected to a water cooling tube row in the cooling partition, and a sealing groove matching the sealing valve plate (44) is provided in the middle of the liquid guide tube (52).

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