Multifunctional operation and maintenance vehicle of immersed liquid cooling system

Abstract

The utility model relates to the field of machine room operation and maintenance, and particularly discloses a multifunctional operation and maintenance vehicle of an immersed liquid cooling system, which comprises a vehicle body, and an equipment bin, a liquid storage tank and a liquid pumping and supplementing pump which are arranged in the vehicle body, the equipment bin is used for storing electronic equipment, and an equipment fixing frame for fixing the electronic equipment is arranged on the upper portion of the inner side of the equipment bin; the mechanical suspension arm is fixedly arranged on one side of the equipment bin; one side of the mechanical suspension arm is provided with an extraction gripper used for gripping the electronic equipment and a lifting assembly used for driving the extraction gripper to move vertically; two liquid inlets and outlets are formed in the liquid pumping and supplementing pump, a liquid pumping pipe is arranged at one liquid inlet and outlet of the liquid pumping and supplementing pump, and the liquid pumping pipe is communicated with the bottom of the inner side of the liquid storage tank; a liquid pumping and supplementing opening is formed in one side of the vehicle body and communicated with the other liquid inlet and outlet of the liquid pumping and supplementing pump. By integrating the liquid pumping and supplementing functions and the equipment bin with the mechanical suspension arm, most conventional operation and maintenance tasks of immersed liquid cooling system equipment can be completed, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the field of computer room operation and maintenance, in particular to a multifunctional operation and maintenance vehicle of an immersion liquid cooling system. Background Art

[0002] With the vigorous development of artificial intelligence, cloud computing and big data technologies, the corresponding computing power requirements are also getting higher and higher, resulting in a continuous increase in server power consumption, especially the core components of the CPU and GPU that provide server computing power. With the upgrade of chip manufacturing processes, it not only brings a leap in computing power, but also a significant increase in overall power consumption and heat generation. The current immersion liquid cooling system solution on the market places the liquid-cooled server in a liquid cooling tank (liquid cooling chassis or liquid cooling cabinet). The tank contains insulating coolant, and the circulating pump drives the coolant carrying heat to circulate between the tank and the radiator, thereby performing heat exchange to complete heat dissipation. The cooled insulating coolant is redistributed back to the tank, and the cycle continues.

[0003] Liquid-cooled servers require lifting tools to quickly complete the daily racking and maintenance services. At the same time, the insulating coolant in the tank is often filled and extracted, which requires appropriate tools for convenient and fast operation. However, in most existing computer rooms, these operation and maintenance tasks are usually made up of homemade tools or workbenches, which are not unified. Replacement, maintenance and procurement are random and difficult to standardize. The training and use of maintenance tools are also difficult to unify and standardize. Utility Model Content

[0004] In order to overcome the above problems, the utility model provides a multifunctional operation and maintenance vehicle of an immersion liquid cooling system.

[0005] The technical solution adopted by the utility model is: a multifunctional maintenance vehicle for an immersion liquid cooling system, which is used to maintain electronic equipment in the immersion liquid cooling system, comprising a vehicle body, and an equipment compartment, a liquid storage tank and a liquid pump arranged inside the vehicle body;

[0006] The equipment compartment is used to store electronic equipment, and an upper portion of the inner side of the equipment compartment is provided with an equipment fixing frame for fixing the electronic equipment;

[0007] A mechanical lifting arm is provided above the vehicle body, and the mechanical lifting arm is fixedly arranged on one side of the equipment bin;

[0008] A rotating unit for driving the mechanical arm to rotate horizontally is provided below the mechanical arm; a grabber for grabbing electronic equipment is provided on the side of the mechanical arm away from the vehicle body, and a lifting assembly for driving the grabber to move vertically is provided on the mechanical arm; the lower end of the mechanical arm is rotatably connected to the rotating unit, and the other end of the mechanical arm is slidably connected to the grabber through the lifting assembly;

[0009] The liquid storage tank and the liquid suction and replenishment pump are respectively fixedly connected to the vehicle body, and the liquid suction and replenishment pump is provided with two liquid inlets and outlets. A liquid suction pipe is provided at one of the liquid inlets and outlets of the liquid suction and replenishment pump, and the liquid suction pipe is connected to the inner bottom of the liquid storage tank; a liquid suction and replenishment port is provided on one side of the vehicle body, and the liquid suction and replenishment port is connected to the other liquid inlet and outlet of the liquid suction and replenishment pump.

[0010] Preferably, the lifting assembly comprises an electric winch fixed on the mechanical boom, and a cable wrapped around the electric winch, one end of the cable is fixedly connected to the electric winch, and the other end of the cable is fixedly connected to the top of the extraction gripper;

[0011] The mechanical boom is provided with a first motor for driving the electric winch to rotate and a second motor for driving the rotating unit to move;

[0012] A control panel is provided on the vehicle body, and the control panel is electrically connected to the first motor and the second motor.

[0013] Preferably, a battery, a circuit breaker and a charging interface are also provided in the vehicle body, the battery is used to power the control panel, the first motor and the second motor, the battery is electrically connected to the charging interface and the circuit breaker respectively, and the circuit breaker is electrically connected to the control panel, the first motor and the second motor respectively.

[0014] Preferably, the mechanical boom is provided with a lifting rocker and a steering handle, the steering handle is used to manually steer the rotating unit, and the lifting rocker is used to manually drive the lifting assembly to drive the extraction gripper to lift and lower.

[0015] Preferably, a top cover is provided on the top of the equipment compartment, and the top cover is connected to the vehicle body in an openable and closable manner.

[0016] Preferably, a plurality of first slide rails are provided on the lower side of the liquid storage tank, and the liquid storage tank is slidably connected to the vehicle body through the first slide rails; a first opening is provided on the top of the liquid storage tank for allowing the liquid extraction tube to enter when the liquid storage tank slides;

[0017] A second slide rail is respectively arranged below both sides of the equipment fixing frame, and the equipment fixing frame is slidably connected to the vehicle body via the two second slide rails.

[0018] Preferably, the mechanical boom also includes a lifting unit for driving the mechanical boom to lift and lower; the lifting unit includes a screw motor vertically fixed in the vehicle body, and a threaded sleeve cooperating with the screw motor, and the threaded sleeve is fixedly connected to the bottom end of the mechanical boom.

[0019] Preferably, a liquid receiving tray is provided below the equipment compartment.

[0020] Preferably, a liquid level sensor is provided in the liquid storage tank, and a control panel is provided on the vehicle body, and the control panel is electrically connected to the liquid level sensor and the liquid extraction and replenishment pump.

[0021] Preferably, a liquid collecting plate is provided on one side of the equipment compartment, and the liquid collecting plate is movably connected to the vehicle body.

[0022] The beneficial effects of the utility model are:

[0023] By integrating the pumping and replenishing function and the equipment warehouse with a mechanical crane, the structure is simple and the implementation cost is low. It can complete most of the routine operation and maintenance tasks of the immersion liquid cooling system equipment, making the operation and maintenance of the immersion liquid cooling system more time-saving and labor-saving. At the same time, it is convenient for the operation and maintenance personnel to adjust the insulating cooling liquid level in the immersion chassis at any time, and to complete the installation and removal of electronic equipment by hoisting. The equipment warehouse protects the removed electronic equipment for easy transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the second embodiment of the utility model;

[0027] Figure 3 for Figure 2 Another perspective of the picture.

[0028] In the figure: 1. vehicle body; 101. liquid replenishing tank; 102. electrical compartment; 103. handle; 104. universal wheel; 2. equipment compartment; 201. top cover; 202. equipment fixing frame; 203. second slide rail; 204. first side door; 205. liquid receiving tray; 3. mechanical crane arm; 301. lifting unit; 302. rotating unit; 303. extraction gripper; 304. lifting assembly; 305. cable; 306. steering handle; 4. liquid storage tank; 5. liquid pump; 501. liquid pump port; 6. battery; 601. circuit breaker. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1 , is the first embodiment of the present utility model, which specifically discloses a multifunctional operation and maintenance vehicle of an immersion liquid cooling system, which is used to maintain electronic equipment in the immersion liquid cooling system, including a vehicle body 1, and an equipment compartment 2, a liquid replenishment compartment 101 and an electrical compartment 102 arranged inside the vehicle body 1; the liquid replenishment compartment 101 is provided with a liquid storage tank 4 and a liquid replenishment pump 5; the electrical compartment 102 is provided with circuits for controlling electrical components in the multifunctional operation and maintenance vehicle and related circuits such as power supplies.

[0031] The equipment compartment 2 is used to place and store electronic equipment, and an equipment fixing frame 202 for fixing electronic equipment is provided on the upper part of the inner side of the equipment compartment 2. The equipment fixing frame 202 and the bracket for fixing electronic equipment in the immersion cabinet use the same spacing and hole positions, so that the electronic equipment can be stably placed or fixed on the equipment fixing frame 202.

[0032] The equipment bin 2 of this embodiment is divided into dry type and wet type.

[0033] The dry equipment compartment 2 is not sealed on all sides, and a liquid receiving tray 205 is provided at the bottom to receive the insulating coolant dripped from the electronic equipment to prevent it from leaking onto the floor of the machine room; the liquid receiving tray 205 can be placed directly at the bottom of the equipment compartment 2, or can be detachably fixed to the inner side of the bottom of the equipment compartment 2 by a buckle, or can be slidably connected to the vehicle body 1 by a slide rail, so that it can be easily pulled out for cleaning and maintenance. At least one first side door 204 is provided on the side of the equipment compartment 2 to facilitate the removal and replacement of the liquid receiving tray 205 and the cleaning of the interior of the equipment compartment 2.

[0034] The wet equipment bin 2 is sealed on all sides, or a liquid storage barrel is provided at the bottom of the equipment bin 2. The equipment bin 2 or the liquid storage barrel contains insulating coolant, so that the electronic equipment just taken out can still be immersed in the insulating coolant to continue to cool down and stabilize the storage environment.

[0035] Preferably, a second thermometer for monitoring and checking the temperature of the coolant at any time, as well as a liquid conductivity detection sensor are also provided in the equipment compartment 2 or the liquid storage barrel to ensure the safety of the electronic equipment therein.

[0036] The liquid storage barrel is slidably connected to the vehicle body 1 through a slide rail, which is convenient for being pulled out for cleaning and maintenance. It can also be detachably fixed to the bottom inner side of the equipment compartment 2 through a buckle, or directly placed at the bottom of the equipment compartment 2.

[0037] In this embodiment, a mechanical crane arm 3 is provided above the vehicle body 1, and the mechanical crane arm 3 is fixedly provided on one side of the equipment bin 2; a rotating unit 302 for driving the mechanical crane arm 3 to rotate horizontally is provided below the mechanical crane arm 3; a picking gripper 303 for grabbing electronic equipment is provided on the side of the mechanical crane arm 3 away from the vehicle body 1, and a lifting component 304 for driving the picking gripper 303 to move vertically is provided on the mechanical crane arm 3; the lower end of the mechanical crane arm 3 is rotatably connected to the rotating unit 302, and the other end of the mechanical crane arm 3 is slidably connected to the picking gripper 303 via the lifting component 304.

[0038] The rotating unit 302 of this embodiment is a horizontally arranged bearing, which is sleeved on the lower end of the mechanical boom 3, so that the mechanical boom 3 can rotate horizontally. The lifting component 304 can be a structure with variable length, such as a winch, a pulley block, or a telescopic rod.

[0039] The lifting component 304 of this embodiment takes a winch and a cable 305 as an example. The extraction gripper 303 is a clamp suspended by the cable 305 and is specially used to fix and lift the electronic device. The electronic device is fixed by clamping / hooking the groove of the electronic device or by the friction force of clamping. A number of hooks or buckles corresponding to the general fixing holes of the electronic device can be set on the clamp.

[0040] The liquid storage tank 4 and the liquid extraction and replenishment pump 5 are respectively fixedly connected to the vehicle body 1, and the liquid extraction and replenishment pump 5 is provided with two liquid inlets and outlets. A liquid extraction pipe is provided at one of the liquid inlets and outlets of the liquid extraction and replenishment pump 5, and the liquid extraction pipe is connected to the inner bottom of the liquid storage tank 4; that is, the liquid extraction pipe directly extends from top to bottom to the bottom of the liquid storage tank 4, or a first opening is provided at the bottom of the liquid storage tank 4, and the liquid extraction pipe is connected to the first opening.

[0041] Among them, the pumping and replenishing fluid pump 5 can be a single bidirectional pump that supports forward and reverse pumping of fluid, or it can be two independent unidirectional liquid pumps that perform pumping and replenishing fluid respectively, or it can be a single unidirectional pump plus a reversing valve to realize the pumping and replenishing functions.

[0042] A liquid pumping port 501 is provided on one side of the vehicle body 1, and the liquid pumping port 501 is connected to another liquid inlet and outlet of the liquid pumping pump 5 through a water pipe. A docking hose is also provided outside the liquid pumping port 501, which is used to connect to the liquid inlet or liquid outlet on the immersion chassis (i.e., liquid cooling tank). When the liquid pumping pump 5 is started, the insulating coolant in the immersion chassis can be pumped out into the liquid storage tank 4, and it can also run in the reverse direction to replenish the insulating coolant in the liquid storage tank 4 to the immersion chassis.

[0043] The multifunctional operation and maintenance vehicle of the present embodiment can complete most routine operation and maintenance tasks of the immersion liquid cooling system equipment by integrating the pumping and replenishing function and the equipment bin 2 with a mechanical crane 3, so that the operation and maintenance personnel can adjust the insulating coolant level in the immersion chassis at any time, and can install and remove electronic equipment by lifting. The equipment bin 2 protects the removed electronic equipment to facilitate transportation.

[0044] Preferably, the mechanical boom 3 of this embodiment is provided with a lifting rocker and a steering handle 306103, wherein the steering handle 306103 is used to manually steer the rotating unit 302, and the lifting rocker is used to manually drive the lifting assembly 304 to drive the extraction gripper 303 to lift and lower, so that the operation and maintenance personnel can operate the operation and maintenance vehicle manually more conveniently and labor-savingly.

[0045] A handle 103 is provided on the vehicle body 1 , and a plurality of universal wheels 104 are provided under the vehicle body 1 , so as to facilitate operation and maintenance personnel to push the vehicle body 1 to move in the machine room.

[0046] See also Figure 2 and Figure 3 , is the second embodiment of the utility model. The difference between this embodiment and the first embodiment is that the lifting assembly 304 of this embodiment includes an electric winch fixed on the mechanical boom 3, and a cable 305 wrapped around the electric winch, one end of the cable 305 is fixedly connected to the electric winch, and the other end of the cable 305 is fixedly connected to the top of the extraction gripper 303.

[0047] The mechanical boom 3 of this embodiment is provided with a first motor for driving the electric winch to rotate and a second motor for driving the rotating unit 302 to move.

[0048] The vehicle body 1 is provided with a control panel, and the control panel is electrically connected to the first motor and the second motor.

[0049] The electrical compartment 102 of this embodiment is also provided with a battery 6, a circuit breaker 601 and a charging interface. The battery 6 is used to power the control panel, the fluid pump 5, the first motor and the second motor. The battery 6 is electrically connected to the charging interface and the circuit breaker 601, respectively. The circuit breaker 601 is electrically connected to the control panel, the first motor and the second motor, respectively. In some embodiments, the battery 6 is slidably connected to the vehicle body 1 and can be pulled out for replacement and independent charging.

[0050] In this embodiment, a liquid level sensor is disposed in the liquid storage tank 4 , and the control panel is electrically connected to the liquid level sensor and the liquid pump 5 .

[0051] The first motor, the second motor, the liquid level sensor and the liquid pump 5 can be electrically controlled through the digital circuit integrated in the blank panel.

[0052] In this embodiment, a top cover 201 is provided on the top of the equipment compartment 2, and the top cover 201 is connected to the vehicle body 1 in an openable and closable manner. In the embodiment of the automatically controlled operation and maintenance vehicle, the top cover 201 can be opened and closed electrically, so that it can automatically open and close to avoid the entry and exit of electronic equipment, thereby better protecting the equipment in the equipment compartment 2.

[0053] A plurality of first slide rails are provided at the lower side of the liquid storage tank 4, and the liquid storage tank 4 is slidably connected to the vehicle body 1 through the first slide rails; a first opening is provided at the top of the liquid storage tank 4 for allowing the liquid extraction tube to enter when the liquid storage tank 4 slides;

[0054] A second slide rail 203 is respectively disposed below both sides of the equipment fixing frame 202 , and the equipment fixing frame 202 is slidably connected to the vehicle body 1 via the two second slide rails 203 .

[0055] Preferably, the mechanical boom 3 of this embodiment also includes a lifting unit 301 for driving the mechanical boom 3 to rise and fall; the lifting unit 301 includes a screw motor vertically fixed in the vehicle body 1, and a threaded sleeve cooperating with the screw motor, the threaded sleeve being fixedly connected to the bottom end of the mechanical boom 3, and being used to drive the mechanical boom 3 to rise and fall, so that the mechanical boom 3 can pass over some higher cabinets, or lift longer electronic equipment, or avoid some obstacles (such as cables or pipes near the cabinets) to lift equipment.

[0056] Similarly, the mechanical boom 3 may also be provided with a telescopic unit (telescopic sleeve or slide rail mechanism) that allows the mechanical boom 3 to extend horizontally, thereby making the working range of the mechanical boom 3 larger and more flexible.

[0057] Preferably, a liquid collecting plate is provided on one side of the equipment bin 2 of this embodiment, and the liquid collecting plate is movably connected to the vehicle body 1, and is used to be bridged between the operation and maintenance vehicle and the immersion chassis when taking out or putting in electronic equipment from the equipment bin 2, so as to prevent the insulating coolant from falling onto the floor of the machine room and contaminating the drainage channel and the precision air conditioner.

[0058] The following is a third embodiment of the present utility model. This embodiment also discloses an operation and maintenance method of an immersion liquid cooling system, which uses a multifunctional operation and maintenance vehicle of the immersion liquid cooling system to maintain the immersion chassis and the electronic equipment therein, including the following steps:

[0059] S1, moving the vehicle body 1 to the vicinity of the electronic equipment that needs maintenance;

[0060] S2, driving the mechanical arm 3 to rotate horizontally through the rotating unit 302, so that the extraction gripper 303 moves horizontally;

[0061] S3, driving the extraction gripper 303 to move in the vertical direction through the lifting assembly 304, and fixing or releasing the electronic device through the extraction gripper 303, thereby completing the lifting and transfer of the electronic device;

[0062] S4. When the submerged chassis needs to be replenished with liquid, the liquid pumping and replenishing port 501 is connected to the liquid replenishing port of the submerged chassis by using a water pipe, and the liquid pumping and replenishing pump 5 is turned on to replenish the submerged chassis with liquid;

[0063] S5. When the immersion chassis needs to be pumped, the pumping and replenishing liquid port 501 is connected to the liquid outlet of the immersion chassis by a water pipe, and the pumping and replenishing liquid pump 5 is turned on to pump liquid from the immersion chassis.

[0064] Among them, if S3 is not included, the lifting and transfer of electronic equipment can be completed by the following steps:

[0065] S31, when it is necessary to take out the electronic device from the immersion box, the lifting assembly 304 drives the extraction gripper 303 to descend to the top of the electronic device, so that the extraction gripper 303 fixes the electronic device, separates the connection between the electronic device and the immersion box, and drives the extraction gripper 303 to lift the electronic device through the lifting assembly 304;

[0066] S32, drive the mechanical boom 3 to rotate horizontally through the rotating unit 302, so that the electronic equipment is moved above the equipment bin 2, and drive the extraction gripper 303 through the lifting assembly 304 to lower the electronic equipment to the equipment fixing frame 202, fix the electronic equipment to the equipment fixing frame 202, and release the extraction gripper 303 to complete the lifting and removal of the electronic equipment; so that the electronic equipment can be transported to the maintenance area for repair or maintenance;

[0067] S33, when it is necessary to install the electronic device from the equipment compartment 2 into the immersion case, the lifting assembly 304 is used to drive the extraction gripper 303 to descend to the top of the electronic device, so that the extraction gripper 303 fixes the electronic device, separates the connection between the electronic device and the equipment fixing frame 202, and drives the extraction gripper 303 through the lifting assembly 304 to lift the electronic device;

[0068] S34, drive the mechanical boom 3 to rotate horizontally through the rotating unit 302 to move the electronic equipment to the top of the immersion chassis, drive the extraction gripper 303 through the lifting component 304 to lower the electronic equipment into the immersion chassis, fix the electronic equipment to the immersion chassis, release the extraction gripper 303, complete the installation of the electronic equipment, and facilitate the installation or replacement of the electronic equipment.

[0069] The pump 5 of the present embodiment can be manually controlled to pump or replenish liquid in its flow direction and switch it on or off, or it can be equipped with a timer to perform timed start and stop control, thereby pumping or replenishing liquid in the submerged chassis.

[0070] Preferably, the vehicle body 1 of this embodiment also includes a control panel and a battery 6, and the mechanical boom 3 is provided with a first motor for driving the electric winch to rotate and a second motor for driving the rotating unit 302 to move; the battery 6 is used to power the control panel, the first motor and the second motor, and the control panel is used to control the first motor, the second motor and the fluid pump 5 to automatically or semi-automatically perform the above-mentioned operation and maintenance method.

[0071] Preferably, a communication module is also provided on the vehicle body 1, and the communication module is electrically connected to the control panel, so that the control panel establishes remote communication with external equipment, so that the operation and maintenance vehicle can be remotely controlled, or the operation and maintenance vehicle can be controlled through remote communication to perform automated operation and maintenance operations, such as simply obtaining the liquid level of the insulating coolant according to the liquid level sensor inside each immersion chassis, thereby automatically performing liquid extraction or liquid replenishment, and automatically starting and stopping according to the liquid level, thereby completing the liquid level maintenance of the immersion chassis.

[0072] Preferably, a power motor for driving the vehicle body 1 to move is provided under the vehicle body 1 of this embodiment, and an automatic routing module for identifying and planning the moving trajectory of the vehicle body 1 is provided on the vehicle body 1, and the automatic routing module and the power motor are electrically connected to the control panel respectively.

[0073] The automatic path finding module can identify the path through mechanical vision, preset path plus wireless positioning, guide rails, or photoelectric sensors with guide lines, and automatically or semi-automatically move the vehicle body 1 in the immersion liquid cooling system. For example, simply determine which immersion boxes need to be pumped or replenished based on the liquid level sensors inside each immersion box, and automatically find the path to the corresponding immersion box after determining the target, and automatically complete the pumping or replenishing work.

[0074] In other embodiments, the automatic routing module may be a camera and a computing card that runs a machine vision recognition algorithm, or it may be a wireless positioning unit. The automatic routing module may also simultaneously adopt a combination of multiple automatic routing solutions.

[0075] The above specific embodiments further describe the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above are only specific embodiments of the utility model and are not intended to limit the protection scope of the utility model. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A multifunctional maintenance vehicle for an immersion liquid cooling system, used for maintaining electronic equipment in the immersion liquid cooling system, characterized in that: It includes a vehicle body, and an equipment compartment, a liquid storage tank and a liquid extraction and replenishment pump arranged inside the vehicle body; The equipment compartment is used to store electronic equipment, and an upper portion of the inner side of the equipment compartment is provided with an equipment fixing frame for fixing the electronic equipment; A mechanical lifting arm is provided above the vehicle body, and the mechanical lifting arm is fixedly arranged on one side of the equipment bin; A rotating unit for driving the mechanical arm to rotate horizontally is provided below the mechanical arm; a grabber for grabbing electronic equipment is provided on the side of the mechanical arm away from the vehicle body, and a lifting assembly for driving the grabber to move vertically is provided on the mechanical arm; the lower end of the mechanical arm is rotatably connected to the rotating unit, and the other end of the mechanical arm is slidably connected to the grabber through the lifting assembly; The liquid storage tank and the liquid suction and replenishment pump are respectively fixedly connected to the vehicle body, and the liquid suction and replenishment pump is provided with two liquid inlets and outlets. A liquid suction pipe is provided at one of the liquid inlets and outlets of the liquid suction and replenishment pump, and the liquid suction pipe is connected to the inner bottom of the liquid storage tank; a liquid suction and replenishment port is provided on one side of the vehicle body, and the liquid suction and replenishment port is connected to the other liquid inlet and outlet of the liquid suction and replenishment pump.

2. The multifunctional maintenance vehicle for an immersion liquid cooling system according to claim 1, characterized in that: The lifting assembly includes an electric winch fixed to the mechanical boom, and a cable wrapped around the electric winch, one end of the cable is fixedly connected to the electric winch, and the other end of the cable is fixedly connected to the top of the extraction gripper; The mechanical boom is provided with a first motor for driving the electric winch to rotate and a second motor for driving the rotating unit to move; A control panel is provided on the vehicle body, and the control panel is electrically connected to the first motor and the second motor.

3. The multifunctional maintenance vehicle for an immersion liquid cooling system according to claim 2, characterized in that: A battery, a circuit breaker and a charging interface are also provided in the vehicle body. The battery is used to power the control panel, the first motor and the second motor. The battery is electrically connected to the charging interface and the circuit breaker respectively, and the circuit breaker is electrically connected to the control panel, the first motor and the second motor respectively.

4. The multifunctional maintenance vehicle for an immersion liquid cooling system according to claim 1, characterized in that: The mechanical boom is provided with a lifting rocker and a steering handle, the steering handle is used to manually steer the rotating unit, and the lifting rocker is used to manually drive the lifting assembly to drive the extraction gripper to lift and lower.

5. The multifunctional maintenance vehicle for an immersion liquid cooling system according to claim 1, characterized in that: A top cover is provided on the top of the equipment compartment, and the top cover is connected to the vehicle body in an openable and closable manner.

6. The multifunctional maintenance vehicle for an immersion liquid cooling system according to claim 1, characterized in that: A plurality of first slide rails are provided at the lower side of the liquid storage tank, and the liquid storage tank is slidably connected to the vehicle body through the first slide rails; a first opening is provided at the top of the liquid storage tank for allowing the liquid extraction pipe to enter when the liquid storage tank slides; A second slide rail is respectively arranged below both sides of the equipment fixing frame, and the equipment fixing frame is slidably connected to the vehicle body via the two second slide rails.

7. The multifunctional maintenance vehicle for an immersion liquid cooling system according to claim 1, characterized in that: The mechanical boom also includes a lifting unit for driving the mechanical boom to lift; the lifting unit includes a screw motor vertically fixed in the vehicle body, and a threaded sleeve matched with the screw motor, and the threaded sleeve is fixedly connected to the bottom end of the mechanical boom.

8. The multifunctional maintenance vehicle for an immersion liquid cooling system according to claim 1, characterized in that: A liquid receiving tray is provided below the equipment bin.

9. The multifunctional maintenance vehicle for an immersion liquid cooling system according to claim 1, characterized in that: A liquid level sensor is arranged in the liquid storage tank, and a control panel is arranged on the vehicle body. The control panel is electrically connected to the liquid level sensor and the liquid extraction and replenishment pump.

10. The multifunctional maintenance vehicle for an immersion liquid cooling system according to claim 1, characterized in that: A liquid collecting plate is provided on one side of the equipment compartment, and the liquid collecting plate is movably connected to the vehicle body.

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