Automatic liquid injection tool system

Abstract

The invention belongs to the technical field of energy storage, and particularly relates to an automatic liquid injection tool system. The automatic liquid injection tool system comprises a liquid suction pipeline, a pulse driving module, a liquid injection pipeline and a first pressure detection module. According to the automatic liquid injection tool system, the pulse driving module is used for synchronously exhausting the gas in the pipeline of the energy storage system in the liquid injection process, so that the situation that the operation of the energy storage system is affected by gas residues in the liquid injection process is avoided. Meanwhile, the first pressure detection module is used for monitoring the pressure of the cooling liquid in the liquid injection pipeline in real time, and when the pressure reaches a preset threshold value of the first pressure detection module, the pulse driving module stops running, so that automatic liquid injection control is achieved. Compared with an existing vacuumizing liquid injection and flow pump liquid injection scheme, the automatic liquid injection tool system does not need to use vacuum equipment, and complexity and cost when the vacuum liquid injection scheme is adopted are reduced; and compared with a flow pump liquid injection scheme, the problem of gas residues in the energy storage system can be effectively solved.

Description

Technical Field

[0001] The present application belongs to the field of energy storage technology, and specifically relates to an automatic liquid injection tooling system. Background Art

[0002] At present, the liquid injection methods of energy storage liquid cooling systems mainly include vacuum injection and flow pump injection. The vacuum injection solution uses a vacuum pump to pre-evacuate the energy storage system to remove air, then introduces the coolant into the pipeline, and finally manually replenishes the energy storage system through the injection pump so that the pressure requirements of the coolant are met in the energy storage system. The problem with this solution is that, on the one hand, the cost of the vacuum pump is high, and on the other hand, the manual liquid replenishment solution is complicated and significantly reduces the injection efficiency. When the flow pump solution is adopted, the gas in the energy storage system pipeline is difficult to be discharged in time because the flow pump has a large flow rate and a short time in the process of pumping coolant. During the subsequent operation of the energy storage system, the gradual discharge of residual gas will cause the pressure of the coolant to drop and trigger the alarm of the energy storage system, which also affects the normal operation of the energy storage system. Summary of the invention

[0003] One of the inventive purposes of the present application is to propose an automatic liquid injection tooling system, which can realize the automatic liquid injection operation of the energy storage system without vacuuming, and effectively avoid the residual gas in the energy storage system, thereby ensuring the stability of the energy storage system operation and the efficiency of the liquid injection process.

[0004] According to an embodiment of the present application, a first aspect provides an automatic liquid injection tooling system, the automatic liquid injection tooling system comprising:

[0005] A liquid suction pipeline is communicated with the coolant storage chamber;

[0006] A pulse drive module is connected to one end of the liquid suction pipeline and is used to pump the coolant through the liquid suction pipeline at a set interval frequency. The pulse drive module is used to synchronously remove the gas from the energy storage system during the liquid injection process.

[0007] A liquid injection pipeline, one end of which is connected to the pulse drive module and is used to inject the coolant output from the pulse drive module into the energy storage system;

[0008] The first pressure detection module is arranged on the injection pipeline and electrically connected to the pulse driving module, and is used for monitoring the pressure of the coolant in the injection pipeline in real time; when the first pressure detection module detects that the pressure of the coolant in the injection pipeline exceeds a preset threshold, the pulse driving module is controlled to stop running.

[0009] In one embodiment, the injection pipeline is provided with a first control valve, the first control valve is arranged on a side of the first pressure detection module away from the pulse driving module, and the first control valve is used to connect and close the injection pipeline.

[0010] In one embodiment, a pulse damping pipeline is provided on a side of the injection pipeline close to the pulse driving module, and the pulse damping pipeline includes a diaphragm damper and a second pressure detection module; and / or the suction pipeline is further provided with a filter.

[0011] In one embodiment, the injection pipeline includes a first segmented pipe, a second segmented pipe and a three-way adapter, the first segmented pipe extends along a first direction, the second segmented pipe extends along a second direction, and the three-way adapter connects the first segmented pipe, the second segmented pipe and the pulse damping pipeline respectively.

[0012] In one embodiment, the first pressure detection module and the first control valve are arranged on the first segmented pipe, the pulse driving module is connected with the second segmented pipe and the liquid suction pipeline, and the pulse driving module is located at the lower side of the pulse damping pipeline.

[0013] In one embodiment, the automatic liquid injection tooling system also includes a first overpressure pipeline, which is arranged on the first segmented pipe and located on the side of the first control valve away from the pulse drive module. The first overpressure pipeline is provided with a first pressure control valve. When the pressure of the coolant in the liquid injection pipeline exceeds the pressure threshold of the first pressure control valve, the first pressure control valve opens.

[0014] In one embodiment, the automatic liquid injection tooling system also includes a second overpressure pipeline, which is arranged on the second segmented pipe and is located at the lower side of the first segmented pipe in the second direction. The second overpressure pipeline is provided with a second pressure control valve, and the pressure threshold of the second pressure control valve is greater than the pressure threshold of the first pressure control valve. When the pressure of the coolant in the liquid injection pipeline exceeds the pressure threshold of the second pressure control valve, the second pressure control valve opens.

[0015] In one embodiment, the automatic liquid injection tooling system also includes a discharge pipeline, which is arranged on the second segmented pipe and is located at the lower side of the first segmented pipe in the second direction. The discharge pipeline is provided with a second control valve, and the second control valve is used to connect and close the discharge pipeline.

[0016] In one embodiment, one end of the second overpressure pipeline is communicated with the second segmented pipe, the other end of the second overpressure pipeline is communicated with the coolant storage chamber, the discharge pipeline is connected in parallel with the second overpressure pipeline, and the inlet of the discharge pipeline is located between the second pressure control valve and the second segmented pipe;

[0017] The outlet of the first overpressure pipeline is communicated with the liquid discharge pipeline and is located between the second control valve and the outlet of the liquid discharge pipeline.

[0018] In one embodiment, the first pressure control valve and the second pressure control valve are both back pressure valves, and the first control valve and the second control valve are both double-joint ball valves; and / or, the first pressure detection module includes a contact pressure gauge, and the second pressure detection module includes a pressure gauge; and / or, the pulse drive module includes a pulse metering pump.

[0019] The automatic liquid injection tooling system of the present application is used to synchronously remove the gas in the pipeline of the energy storage system during the liquid injection process through the pulse drive module, so as to avoid the residual gas during the liquid injection process affecting the operation of the energy storage system. At the same time, the first pressure detection module is used to monitor the coolant pressure in the liquid injection pipeline in real time, and when the pressure reaches the preset threshold of the first pressure detection module, the pulse drive module stops running, thereby realizing automatic liquid injection control. Compared with the existing vacuum liquid injection and flow pump liquid injection solutions, the automatic liquid injection tooling system of the present application does not require the use of vacuum equipment, reducing the complexity and cost of the vacuum liquid injection solution; compared with the flow pump liquid injection solution, it can effectively solve the problem of residual gas in the energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an automatic liquid injection tooling system in an embodiment of the present application;

[0021] Figure 2 This is a structural schematic diagram of a liquid suction pipeline in one embodiment of the present application;

[0022] Figure 3 This is a structural schematic diagram of a liquid injection pipeline in one embodiment of the present application;

[0023] Figure 4 This is a schematic diagram of the structure of a pulse damping pipeline in one embodiment of the present application;

[0024] Figure 5 This is a schematic diagram of the structure of the first overpressure pipeline in one embodiment of the present application;

[0025] Figure 6 This is a schematic diagram of the structure of the second overpressure pipeline in one embodiment of the present application;

[0026] Figure 7Schematic diagram of the structure of the liquid discharge pipeline in one embodiment of the present application.

[0027] Description of the accompanying drawings:

[0028] 100, liquid suction pipeline; 110, filter; 200, pulse drive module;

[0029] 300, liquid injection pipeline; 310, first control valve; 320, first segmented pipe;

[0030] 330, second segmented pipe; 340, three-way adapter; 400, first pressure detection module;

[0031] 500, pulse damping pipeline; 510, diaphragm damper; 520, second pressure detection module;

[0032] 600, first overpressure pipeline; 610, first pressure control valve;

[0033] 700, second overpressure pipeline; 710, second pressure control valve;

[0034] 800, liquid discharge pipeline; 810, second control valve. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0036] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention.

[0037] The structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0038] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] As described in the background, the current liquid injection methods of energy storage liquid cooling systems mainly include two solutions: vacuum injection and flow pump injection. The vacuum injection solution uses a vacuum pump to pre-evacuate the energy storage system to remove air, then introduces the coolant into the pipeline, and finally manually replenishes the energy storage system through the injection pump so that the pressure requirements of the coolant are met in the energy storage system. The problem with this solution is that on the one hand, the cost of the vacuum pump is high, and on the other hand, the manual liquid replenishment solution is complicated and significantly reduces the injection efficiency. When the flow pump solution is adopted, since the flow pump has a large flow rate and a short time in the process of pumping coolant, it is difficult to discharge the gas in the pipeline of the energy storage system in time. During the subsequent operation of the energy storage system, the gradual discharge of residual gas will cause the pressure of the coolant to drop and trigger the alarm of the energy storage system, which also affects the normal operation of the energy storage system. To this end, the researchers of this application proposed an automatic liquid injection tooling system, which can realize the automatic liquid injection operation of the energy storage system without vacuuming, and effectively avoid the residual gas in the energy storage system, thereby ensuring the stability of the operation of the energy storage system and the efficiency of the liquid injection process.

[0040] like Figure 1 As shown, Figure 1 The structure diagram of the automatic liquid injection tooling system in one embodiment of the present application. In this embodiment, the automatic liquid injection tooling system includes: a liquid suction pipeline 100, a pulse drive module 200, a liquid injection pipeline 300 and a first pressure detection module 400. Among them, the pulse drive module 200 transports the coolant from the liquid suction pipeline 100 to the liquid injection pipeline 300 through an interval frequency, and the pulse drive module 200 simultaneously removes the gas of the energy storage system during the liquid injection process. The first pressure detection module 400 is used to monitor the coolant pressure in the liquid injection pipeline 300 in real time, and automatically stops the liquid injection when the pressure reaches a preset threshold, thereby realizing automatic liquid injection control.

[0041] Specifically, the liquid suction pipeline 100 is connected to the coolant storage chamber; the pulse drive module 200 is connected to one end of the liquid suction pipeline 100, and the pulse drive module 200 is used to pump coolant through the liquid suction pipeline 100 at a set interval frequency. The pulse drive module 200 is used to synchronously remove the gas from the energy storage system during the injection process; one end of the injection pipeline 300 is connected to the pulse drive module 200, and is used to inject the coolant output from the pulse drive module 200 into the energy storage system; the first pressure detection module 400 is arranged on the injection pipeline 300 and is electrically connected to the pulse drive module 200. The first pressure detection module 400 is used to monitor the pressure of the coolant in the injection pipeline 300 in real time. The first pressure detection module 400 may include a contact pressure gauge; when the first pressure detection module 400 detects that the pressure of the coolant in the injection pipeline 300 exceeds a preset threshold, the pulse drive module 200 is controlled to stop running.

[0042] In this embodiment, the automatic liquid injection tooling system injects liquid into the energy storage system through the pulse drive module 200. During the liquid injection process, the exhaust valve of the energy storage system is in an open state, the purpose of which is to provide a gas discharge passage for the energy storage system pipeline, to ensure that the coolant can smoothly fill the internal space of the energy storage system during the liquid injection process, and to promptly remove the gas introduced by the liquid injection or the original residual gas in the energy storage system. The pulse drive module 200 pumps the coolant to the injection pipeline 300 through the liquid suction pipeline 100 according to the set interval frequency, and further transports it to the energy storage system. The pulse drive module 200 periodically delivers the coolant, and the intermittent flow generated forms dynamic pressure fluctuations, which can cause the gas in the energy storage system pipeline to be gradually discharged to the exhaust valve position under the pushing action of the coolant, thereby realizing the synchronous removal of the gas. In the above manner, the risk of residual gas in the energy storage system pipeline is effectively reduced, ensuring the normal operation stability of the energy storage system.

[0043] At the same time, the first pressure detection module 400 is used to monitor the pressure changes of the coolant inside the injection pipeline 300 in real time. When the coolant pressure is detected to reach a preset threshold, the first pressure detection module 400 controls the pulse drive module 200 to stop running through electrical connection, thereby realizing automatic control of the injection process and ensuring that the injection process is efficient and accurate.

[0044] Compared with the traditional vacuum injection solution and flow pump injection solution, the automatic injection tooling system of this embodiment does not need to use vacuum equipment, which reduces the complexity of the system and reduces the equipment procurement and maintenance costs. In addition, compared with the flow pump injection solution, the system of this application can effectively solve the problem of gas residue by synchronously removing gas during the injection process through the pulse drive module 200, thereby avoiding liquid pressure fluctuations and alarm problems caused by untimely gas discharge, and further improving the operational reliability of the energy storage system.

[0045] The pulse drive module 200 in this embodiment can also accurately control the delivery rhythm of the coolant by adjusting the time interval of the pulse, so as to adapt to different levels of energy storage systems. Among them, the pulse drive module 200 includes a pulse metering pump. The pulse metering pump can accurately output a fixed volume of coolant according to the preset flow demand in each pulse cycle.

[0046] In one embodiment, see Figure 1 and Figure 3 As shown, the injection pipeline 300 is provided with a first control valve 310, which is arranged on the side of the first pressure detection module 400 away from the pulse driving module 200, and is used to connect and close the injection pipeline 300. The first control valve 310 can be a double live ball valve.

[0047] In this embodiment, by setting the first control valve 310 in the injection pipeline 300, effective control of the fluidity of the injection pipeline 300 is achieved. The first control valve 310 is set on the side of the first pressure detection module 400 away from the pulse drive module 200, and is intended to close the first control valve 310 when the outlet pressure of the injection pipeline 300 is too high to effectively protect the first pressure detection module 400 and prevent the first pressure detection module 400 from being damaged due to excessive pressure. By opening and closing the first control valve 310, the first control valve 310 can be opened at the beginning of injection, so that the coolant can flow smoothly through the injection pipeline 300 and enter the energy storage system; when the injection is completed, the first control valve 310 is closed, thereby cutting off the injection pipeline 300 to prevent the coolant from continuing to flow.

[0048] In one embodiment, see Figure 1 , Figure 2 and Figure 4 As shown, a pulse damping pipeline 500 is provided on one side of the injection pipeline 300 close to the pulse driving module 200, and the pulse damping pipeline 500 includes a diaphragm damper 510 and a second pressure detection module 520; and / or, the suction pipeline 100 is further provided with a filter 110. The second pressure detection module 520 includes a pressure gauge.

[0049] In this embodiment, by setting a pulse damping pipeline 500 in the injection pipeline 300, the pressure fluctuations generated during the operation of the pulse driving module 200 can be effectively alleviated. Specifically, the diaphragm damper 510 in the pulse damping pipeline 500 plays a role in buffering pressure fluctuations through the characteristics of deformation and elastic recovery. During the flow of the coolant, the diaphragm damper 510 can absorb and adjust the instantaneous pressure changes in the fluid, reduce the drastic pressure fluctuations when the coolant flows in the pipeline, and prevent excessive pressure changes from causing excessive stress or impact on the pipeline of the automatic injection pipeline 300 system. In addition, the second pressure detection module 520 can provide real-time feedback on the pressure state changes inside the pulse damping pipeline 500, so that the staff can obtain the pressure information of the pulse damping pipeline 500.

[0050] At the same time, by arranging the filter 110 in the liquid suction pipeline 100, the impurities in the coolant can be filtered, which can effectively prevent the impurities from entering the liquid storage system and ensure the cleanliness of the coolant.

[0051] In one embodiment, see Figure 1 and Figure 3 As shown, the injection pipeline 300 includes a first segmented pipe 320, a second segmented pipe 330 and a three-way adapter 340. The first segmented pipe 320 extends along a first direction, the second segmented pipe 330 extends along a second direction, and the three-way adapter 340 connects the first segmented pipe 320, the second segmented pipe 330 and the pulse damping pipeline 500 respectively.

[0052] In this embodiment, the injection pipeline 300 is designed to include a first segmented pipe 320, a second segmented pipe 330 and a three-way adapter 340, so that the segmented structure layout of the injection pipeline 300 is realized, thereby improving the convenience during installation and maintenance. The first segmented pipe 320 extends along a first direction, which can be a horizontal direction. Figure 3 The direction indicated by the arrow a in the middle, so the coolant can be directly transported to the liquid storage system in the horizontal direction, the second segmented pipe 330 extends along the second direction, and the second direction can be the vertical direction, which can be referred to in Figure 3 The direction indicated by the middle arrow b can therefore suck the coolant on the lower side into the injection pipeline 300; the first segmented pipe 320, the second segmented pipe 330 and the pulse damping pipeline 500 are connected by the three-way adapter 340, so that the pipeline can be quickly disassembled and maintained.

[0053] In one embodiment, see Figure 1 and Figure 3 As shown, the first pressure detection module 400 and the first control valve 310 are arranged in the first segmented pipe 320 , the pulse driving module 200 is connected with the second segmented pipe 330 and the liquid suction pipeline 100 , and the pulse driving module 200 is located at the lower side of the pulse damping pipeline 500 .

[0054] In this embodiment, when the first pressure detection module 400 and the first control valve 310 are arranged on the first segmented pipe 320, the first pressure detection module 400 can detect the pressure change in real time during the process of the pulse drive module 200 pumping the coolant to the injection pipeline 300, ensuring that the pressure value can be accurately fed back, so as to control the pulse drive module 200 to stop running more timely. The first control valve 310 is used to adjust the flow of the coolant in the first segmented pipe 320, so that the coolant can smoothly enter the liquid storage system through the first control valve 310. The pulse damping pipeline 500 is arranged on the upper side of the pulse drive module 200, which helps to timely alleviate the pressure fluctuations generated by the pulse drive module 200.

[0055] In one embodiment, see Figure 1 and Figure 5 As shown, the automatic liquid injection tooling system further includes a first overpressure pipeline 600, which is arranged in the first segmented pipe 320 and located on the side of the first control valve 310 away from the pulse drive module 200. The first overpressure pipeline 600 is provided with a first pressure control valve 610. When the pressure of the coolant in the liquid injection pipeline 300 exceeds the pressure threshold of the first pressure control valve 610, the first pressure control valve 610 is opened. Among them, the first pressure control valve 610 is a back pressure valve.

[0056] In this embodiment, by setting the first overpressure pipeline 600, effective handling of overpressure during the injection process is achieved. During the injection process, if the first pressure detection module 400 fails and the pulse drive module 200 is not closed in time, causing the pressure of the coolant in the injection pipeline 300 to exceed the pressure threshold set by the first pressure control valve 610, the first pressure control valve 610 automatically opens, allowing excess coolant to be discharged through the first overpressure pipeline 600, thereby preventing the automatic injection tooling system from being damaged due to excessive pressure. The first overpressure pipeline 600 is set in the first segmented pipe 320 and is located on the side of the first control valve 310 away from the pulse drive module 200 to avoid the pressure on the outlet side of the injection pipeline 300 being higher than the pressure on the side where the coolant enters the first pressure detection module 400, thereby preventing the first pressure detection module 400 from being damaged due to back pressure.

[0057] In one embodiment, see Figure 1 and Figure 6As shown, the automatic liquid injection tooling system further includes a second overpressure pipeline 700, which is arranged in the second segmented pipe 330 and is located at the lower side of the first segmented pipe 320 in the second direction. The second overpressure pipeline 700 is provided with a second pressure control valve 710, and the pressure threshold of the second pressure control valve 710 is greater than the pressure threshold of the first pressure control valve 610. When the pressure of the coolant in the liquid injection pipeline 300 exceeds the pressure threshold of the second pressure control valve 710, the second pressure control valve 710 is opened. Among them, the second pressure control valve 710 is a back pressure valve.

[0058] In this embodiment, the setting of the second overpressure pipeline 700 further improves the pressure protection mechanism of the automatic liquid injection tooling system. The second overpressure pipeline 700 is arranged on the second segmented pipe 330 and is located at the lower side of the first segmented pipe 320 in the second direction, so that the distance between the second overpressure pipeline 700 and the pulse drive module 200 is shorter, which is conducive to the second pressure control valve 710 to quickly sense and respond to the pressure change at the output end of the pulse drive module 200. When the coolant pressure of the second segmented pipe 330 in the liquid injection pipeline 300 exceeds the pressure threshold set by the second pressure control valve 710, the second pressure control valve 710 opens the second overpressure pipeline 700 to discharge the excess coolant through the second overpressure pipeline 700. Since the pressure threshold of the second pressure control valve 710 is higher than the pressure threshold of the first pressure control valve 610, when the pressure of the liquid injection pipeline 300 cannot be reduced to a safe range after the first overpressure pipeline 600 is opened, the second overpressure pipeline 700 will be activated as a supplementary protection mechanism. Through the synergistic effect of the first overpressure pipeline 600 and the second overpressure pipeline 700, a graded overpressure protection mechanism is formed to ensure that the pressure of the injection pipeline 300 is always maintained within a safe range, effectively protecting the safe operation of the automatic injection tooling system.

[0059] In one embodiment, see Figure 1 and Figure 7 As shown, the automatic liquid injection tooling system further includes a liquid discharge pipeline 800, which is arranged on the second segmented pipe 330 and is located at the lower side of the first segmented pipe 320 in the second direction. The liquid discharge pipeline 800 is provided with a second control valve 810, which is used to connect and close the liquid discharge pipeline 800. The second control valve 810 is a double-jointed ball valve.

[0060] In this embodiment, the automatic liquid injection tooling system ensures that the coolant in the liquid injection pipeline 300 can be effectively discharged after the system stops running by setting a liquid discharge pipeline 800. The liquid discharge pipeline 800 is set in the second segmented pipe 330 and is located at the lower side of the first segmented pipe 320. It can use gravity and the pressure difference in the pipe to make the coolant in the first segmented pipe 320 flow back to the liquid discharge pipeline 800 through the liquid injection pipeline 300 and discharge the system. At the same time, the configuration of the liquid injection pipeline 300 located in the second segmented pipe 330 also ensures that the coolant in the second segmented pipe 330 can smoothly enter the second segmented pipe 330 and be discharged smoothly.

[0061] In one embodiment, see Figure 1 As shown, one end of the second overpressure pipeline 700 is connected to the second segmented pipe 330, the other end of the second overpressure pipeline 700 is connected to the coolant storage chamber, the discharge pipeline 800 is connected in parallel with the second overpressure pipeline 700 and the inlet of the discharge pipeline 800 is located between the second pressure control valve 710 and the second segmented pipe 330; the outlet of the first overpressure pipeline 600 is connected to the discharge pipeline 800 and is located between the second control valve 810 and the outlet of the discharge pipeline 800.

[0062] In this embodiment, one end of the second overpressure pipeline 700 is connected to the second segmented pipe 330, and the other end extends to communicate with the coolant storage chamber, so as to realize direct recovery of the coolant under overpressure conditions. The second overpressure pipeline 700 is connected in parallel with the drain pipeline 800, and the inlet of the drain pipeline 800 is located between the second pressure control valve 710 and the second segmented pipe 330. This configuration allows the coolant entering the second overpressure pipeline 700 to flow directly into the drain pipeline 800, avoiding the second pressure control valve 710 from obstructing the discharge flow of the coolant, and simplifying the pipeline layout.

[0063] In addition, the outlet of the first overpressure pipeline 600 is connected to the drain pipeline 800 and is arranged between the second control valve 810 and the outlet of the drain pipeline 800, so that the first overpressure pipeline 600 does not need to rely on the opening of the second control valve 810 in the drain pipeline 800 when discharging coolant, and can be discharged directly through the drain pipeline 800.

[0064] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An automatic liquid injection tooling system, characterized in that: The automatic liquid injection tooling system comprises: A liquid suction pipeline (100) is communicated with the cooling liquid storage chamber; A pulse drive module (200) is connected to one end of the liquid suction pipeline (100) and is used to pump cooling liquid through the liquid suction pipeline (100) at a set interval frequency. The pulse drive module (200) is used to synchronously remove gas from the energy storage system during the liquid injection process; A liquid injection pipeline (300), one end of which is in communication with the pulse drive module (200) and is used to inject the cooling liquid output from the pulse drive module (200) into the energy storage system; A first pressure detection module (400) is arranged on the injection pipeline (300) and is electrically connected to the pulse drive module (200) for real-time monitoring of the pressure of the coolant in the injection pipeline (300); when the first pressure detection module (400) detects that the pressure of the coolant in the injection pipeline (300) exceeds a preset threshold, the pulse drive module (200) is controlled to stop running.

2. The automatic liquid injection tooling system according to claim 1, characterized in that: The injection pipeline (300) is provided with a first control valve (310), and the first control valve (310) is arranged on a side of the first pressure detection module (400) away from the pulse drive module (200), and the first control valve (310) is used to connect and close the injection pipeline (300).

3. The automatic liquid injection tooling system according to claim 2 is characterized in that: A pulse damping pipeline (500) is provided on one side of the injection pipeline (300) close to the pulse driving module (200), and the pulse damping pipeline (500) includes a diaphragm damper (510) and a second pressure detection module (520); and / or the suction pipeline (100) is further provided with a filter (110).

4. The automatic liquid injection tooling system according to claim 3 is characterized in that: The injection pipeline (300) comprises a first segmented pipe (320), a second segmented pipe (330) and a three-way adapter (340); the first segmented pipe (320) extends along a first direction, the second segmented pipe (330) extends along a second direction, and the three-way adapter (340) respectively connects the first segmented pipe (320), the second segmented pipe (330) and the pulse damping pipeline (500).

5. The automatic liquid injection tooling system according to claim 4, characterized in that: The first pressure detection module (400) and the first control valve (310) are arranged on the first segmented pipe (320), the pulse driving module (200) is connected with the second segmented pipe (330) and the liquid suction pipeline (100), and the pulse driving module (200) is located at the lower side of the pulse damping pipeline (500).

6. The automatic liquid injection tooling system according to claim 5, characterized in that: The automatic liquid injection tooling system further comprises a first overpressure pipeline (600), wherein the first overpressure pipeline (600) is arranged on the first segmented pipe (320) and is located on a side of the first control valve (310) away from the pulse drive module (200), and the first overpressure pipeline (600) is provided with a first pressure control valve (610), and when the pressure of the coolant in the liquid injection pipeline (300) exceeds a pressure threshold of the first pressure control valve (610), the first pressure control valve (610) is opened.

7. The automatic liquid injection tooling system according to claim 6, characterized in that: The automatic liquid injection tooling system further comprises a second overpressure pipeline (700), wherein the second overpressure pipeline (700) is arranged on the second segmented pipe (330) and is located at the lower side of the first segmented pipe (320) in the second direction, and the second overpressure pipeline (700) is provided with a second pressure control valve (710), wherein the pressure threshold of the second pressure control valve (710) is greater than the pressure threshold of the first pressure control valve (610), and when the pressure of the coolant in the liquid injection pipeline (300) exceeds the pressure threshold of the second pressure control valve (710), the second pressure control valve (710) is opened.

8. The automatic liquid injection tooling system according to claim 7, characterized in that: The automatic liquid injection tooling system further comprises a liquid discharge pipeline (800), wherein the liquid discharge pipeline (800) is arranged on the second segmented pipe (330) and is located at the lower side of the first segmented pipe (320) in the second direction, and the liquid discharge pipeline (800) is provided with a second control valve (810), and the second control valve (810) is used to connect and close the liquid discharge pipeline (800).

9. The automatic liquid injection tooling system according to claim 8, characterized in that: One end of the second overpressure pipeline (700) is in communication with the second segmented pipe (330), the other end of the second overpressure pipeline (700) is in communication with the coolant storage chamber, the drain pipeline (800) is in parallel communication with the second overpressure pipeline (700), and the inlet of the drain pipeline (800) is located between the second pressure control valve (710) and the second segmented pipe (330); The outlet of the first overpressure pipeline (600) is in communication with the liquid discharge pipeline (800) and is located between the second control valve (810) and the outlet of the liquid discharge pipeline (800).

10. The automatic liquid injection tooling system according to claim 8, characterized in that: The first pressure control valve (610) and the second pressure control valve (710) are both back pressure valves, the first control valve (310) and the second control valve (810) are both double live-joint ball valves; and / or, the first pressure detection module (400) includes a contact pressure gauge, the second pressure detection module (520) includes a pressure gauge; and / or, the pulse drive module (200) includes a pulse metering pump.

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