Automated liquid injection tooling system

Abstract

This application belongs to the field of energy storage technology, specifically relating to an automatic liquid injection fixture system. The automatic liquid injection fixture system includes: a liquid suction line, a pulse drive module, an injection line, and a first pressure detection module. In this application, the automatic liquid injection fixture system uses the pulse drive module to simultaneously remove gas from the energy storage system pipeline during the liquid injection process, thereby preventing residual gas from affecting the operation of the energy storage system. Simultaneously, the first pressure detection module monitors the coolant pressure in the injection line in real time, and when the pressure reaches a preset threshold set by the first pressure detection module, it stops the pulse drive module, thus achieving automated liquid injection control. Compared to existing vacuum injection and flow pump injection solutions, this application's automatic liquid injection fixture system eliminates the need for vacuum equipment, reducing the complexity and cost of vacuum injection solutions; compared to flow pump injection solutions, it effectively solves the problem of residual gas in the energy storage system.

Description

Technical Field

[0001] This application belongs to the field of energy storage technology, specifically relating to an automated liquid injection tooling system. Background Technology

[0002] Currently, the main methods for injecting coolant into energy storage liquid cooling systems include vacuum injection and flow pump injection. The vacuum injection method involves pre-evacuating the energy storage system with a vacuum pump to remove air, then introducing coolant into the pipelines, and finally manually replenishing the system with an injection pump to meet the required coolant pressure. The problem with this method is that vacuum pumps are expensive, and the manual replenishment process is complex and significantly reduces injection efficiency. The flow pump method, on the other hand, involves a large flow rate and short pumping time, making it difficult to expel gas from the energy storage system pipelines in a timely manner. During subsequent operation, the gradual expulsion of residual gas causes a drop in coolant pressure, triggering alarms and affecting the normal operation of the energy storage system. Utility Model Content

[0003] One objective of this application is to provide an automated liquid injection fixture system that can automate the liquid injection operation of an energy storage system without the need for vacuuming, while effectively avoiding gas residue 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 this application, a first aspect provides an automated liquid injection fixture system, the automated liquid injection fixture system comprising:

[0005] The liquid suction line is connected to the coolant storage chamber;

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

[0007] The liquid injection pipeline has one end 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] A first pressure detection module is installed on the injection pipeline and electrically connected to the pulse drive module for real-time monitoring of the coolant pressure in the injection pipeline. When the first pressure detection module detects that the coolant pressure in the injection pipeline exceeds a preset threshold, it controls the pulse drive module to stop operating.

[0009] In one embodiment, the injection line is provided with a first control valve, which is located on the side of the first pressure detection module away from the pulse drive module. The first control valve is used to connect and close the injection line.

[0010] In one embodiment, a pulse damping line is provided on the side of the injection line near the pulse drive module, the pulse damping line including a diaphragm damper and a second pressure detection module; and / or, the suction line is further provided with a filter.

[0011] In one embodiment, the injection line includes a first segmented pipe, a second segmented pipe, and a tee adapter. The first segmented pipe extends along a first direction, the second segmented pipe extends along a second direction, and the tee adapter connects the first segmented pipe, the second segmented pipe, and the pulse damping line, respectively.

[0012] In one embodiment, the first pressure detection module and the first control valve are disposed in the first segmented pipe, the pulse drive module is connected to the second segmented pipe and the liquid suction line, and the pulse drive module is located below the pulse damping line.

[0013] In one embodiment, the automatic liquid injection fixture system further includes a first overpressure pipeline, which is disposed in 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, which opens when the pressure of the coolant in the injection pipeline exceeds the pressure threshold of the first pressure control valve.

[0014] In one embodiment, the automatic liquid injection fixture system further includes a second overpressure pipeline, which is disposed in the second segmented pipe and located below the first segmented pipe in the second direction. The second overpressure pipeline is provided with a second pressure control valve, the pressure threshold of which is greater than the pressure threshold of the first pressure control valve. When the pressure of the coolant in the 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 fixture system further includes a liquid discharge pipeline, which is disposed on the second segmented pipe and located below the first segmented pipe in the second direction. The liquid discharge pipeline is provided with a second control valve, which is used to connect and close the liquid discharge pipeline.

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

[0017] The outlet of the first overpressure line is connected to the drain line and is located between the second control valve and the outlet of the drain line.

[0018] In one embodiment, both the first pressure control valve and the second pressure control valve are back pressure valves, and both the first control valve and the second control valve are 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 fixture system of this application uses a pulse drive module to simultaneously remove gas from the energy storage system pipeline during the liquid injection process, thereby preventing residual gas from affecting the operation of the energy storage system. Simultaneously, a first pressure detection module monitors the coolant pressure in the injection pipeline in real time, and stops the pulse drive module when the pressure reaches a preset threshold, thus achieving automated liquid injection control. Compared to existing vacuum liquid injection and flow pump liquid injection solutions, the automatic liquid injection fixture system of this application eliminates the need for vacuum equipment, reducing the complexity and cost of vacuum liquid injection solutions; compared to flow pump liquid injection solutions, it effectively solves the problem of residual gas in the energy storage system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an automatic liquid injection tooling system in one embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the liquid suction tube in one embodiment of this application;

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

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

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

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

[0026] Figure 7This is a schematic diagram of the liquid discharge pipeline in one embodiment of this application.

[0027] Explanation of the attached drawing numbers:

[0028] 100. Suction tubing; 110. Filter; 200. Pulse drive module;

[0029] 300. Injection line; 310. First control valve; 320. First segment pipe;

[0030] 330, Second segment pipe; 340, T-connector; 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 line; 710, Second pressure control valve;

[0034] 800, Drainage line; 810, Second control valve. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0036] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model.

[0037] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0038] The orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "middle," "longitudinal," "transverse," "horizontal," "inner," "outer," "radial," and "circumferential" used in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] As mentioned in the background, current liquid cooling system injection methods mainly include two approaches: vacuum injection and flow pump injection. The vacuum injection approach involves pre-evacuating the energy storage system with a vacuum pump to remove air, then introducing coolant into the pipeline, and finally manually replenishing the system with an injection pump to meet the required coolant pressure. The problem with this approach is that vacuum pumps are expensive, and the manual replenishment process is complex and significantly reduces injection efficiency. With the flow pump approach, the large flow rate and short pumping time make it difficult to expel gas from the pipeline in a timely manner. During subsequent operation, the gradual expulsion of residual gas causes a drop in coolant pressure, triggering alarms and affecting the normal operation of the energy storage system. To address this, the researchers in this application propose an automated injection fixture system. This system can automate the injection of coolant into the energy storage system without vacuuming, effectively preventing residual gas and ensuring the stability and efficiency of the injection process.

[0040] like Figure 1 As shown, Figure 1 This is a schematic diagram of the automatic liquid injection fixture system according to one embodiment of this application. In this embodiment, the automatic liquid injection fixture system includes: a suction pipe 100, a pulse drive module 200, an injection pipe 300, and a first pressure detection module 400. The pulse drive module 200 delivers coolant from the suction pipe 100 to the injection pipe 300 at intervals. During the injection process, the pulse drive module 200 simultaneously removes gas from the energy storage system. The first pressure detection module 400 monitors the coolant pressure in the injection pipe 300 in real time. When the pressure reaches a preset threshold, the injection automatically stops, thereby achieving automated liquid injection control.

[0041] Specifically, the suction pipe 100 is connected to the coolant storage chamber; the pulse drive module 200 is connected to one end of the suction pipe 100, and the pulse drive module 200 is used to pump coolant through the suction pipe 100 at a set interval frequency. During the injection process, the pulse drive module 200 is used to simultaneously expel gas from the energy storage system; one end of the injection pipe 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 installed on the injection pipe 300 and 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 pipe 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 pipe 300 exceeds a preset threshold, it controls the pulse drive module 200 to stop operating.

[0042] In this embodiment, the automatic liquid injection fixture system injects liquid into the energy storage system via a pulse drive module 200. During the injection process, the vent valve of the energy storage system is open to provide a path for gas discharge from the system's pipelines. This ensures that the coolant can smoothly fill the internal space of the energy storage system during injection, while simultaneously removing any gas introduced during injection or any residual gas already present in the system. The pulse drive module 200 pumps the coolant through the suction line 100 to the injection line 300 at a set interval frequency, and then further delivers it to the energy storage system. The intermittent flow generated by the periodic delivery of coolant by the pulse drive module 200 creates dynamic pressure fluctuations, which gradually expel gas from the energy storage system pipelines to the vent valve under the pressure of the coolant, thus achieving synchronous gas removal. Through this method, the risk of residual gas in the energy storage system pipelines is effectively reduced, ensuring the stable operation of the energy storage system.

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

[0044] Compared to traditional vacuum injection and flow pump injection methods, the automatic injection fixture system in this embodiment eliminates the need for vacuum equipment, reducing system complexity and equipment procurement and maintenance costs. Furthermore, compared to flow pump injection, this system uses a pulse drive module 200 to simultaneously remove gas during the injection process, effectively addressing the issue of residual gas. This avoids liquid pressure fluctuations and alarm problems caused by untimely gas removal, further improving the operational reliability of the energy storage system.

[0045] The pulse drive module 200 in this embodiment can also precisely control the coolant delivery rhythm by adjusting the pulse time interval, thereby adapting to different levels of energy storage systems. The pulse drive module 200 includes a pulse metering pump. The pulse metering pump can accurately output a fixed volume of coolant within each pulse cycle according to a preset flow rate requirement.

[0046] In one embodiment, see Figure 1 and Figure 3 As shown, the injection line 300 is equipped with a first control valve 310. The first control valve 310 is located on the side of the first pressure detection module 400 away from the pulse drive module 200. The first control valve 310 is used to connect and close the injection line 300. The first control valve 310 can be a double-joint ball valve.

[0047] In this embodiment, by providing a first control valve 310 in the injection pipeline 300, effective control of the flow of the injection pipeline 300 is achieved. The first control valve 310 is located on the side of the first pressure detection module 400 away from the pulse drive module 200. Its purpose is to close the first control valve 310 when the outlet pressure of the injection pipeline 300 is too high, effectively protecting the first pressure detection module 400 and preventing damage due to excessive pressure. By opening and closing the first control valve 310, it can be opened at the start of injection, allowing the coolant to flow smoothly through the injection pipeline 300 and into the energy storage system; after injection is completed, the first control valve 310 is closed, thereby cutting off the injection pipeline 300 and preventing further coolant flow.

[0048] In one embodiment, see Figure 1 , Figure 2 and Figure 4 As shown, a pulse damping line 500 is provided on the side of the injection line 300 near the pulse drive module 200. The pulse damping line 500 includes a diaphragm damper 510 and a second pressure detection module 520; and / or, the suction line 100 is also 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 drive module 200 can be effectively mitigated. Specifically, the diaphragm damper 510 in the pulse damping pipeline 500 plays a role in buffering pressure fluctuations through its deformation and elastic recovery characteristics. During the flow of coolant, the diaphragm damper 510 can absorb and regulate instantaneous pressure changes in the fluid, reducing drastic pressure fluctuations when the coolant flows in the pipeline, and preventing excessive stress or impact on the pipeline of the automatic injection pipeline 300 system caused by excessive pressure changes. In addition, the second pressure detection module 520 can provide real-time feedback on the pressure state changes inside the pulse damping pipeline 500, enabling operators to obtain pressure information of the pulse damping pipeline 500.

[0050] Meanwhile, by installing a filter 110 in the liquid suction line 100, impurities in the coolant can be filtered out, which can effectively prevent 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 line 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 line 500, respectively.

[0052] In this embodiment, by designing the injection pipeline 300 to include a first segmented pipe 320, a second segmented pipe 330, and a tee adapter 340, a segmented structural layout of the injection pipeline 300 is achieved, thereby improving the convenience of installation and maintenance. The first segmented pipe 320 extends along a first direction, which can be horizontal, as described in the reference. Figure 3 The direction pointed to by the middle arrow a allows for direct horizontal delivery of coolant to the reservoir system. The second segment pipe 330 extends along this second direction, which can be vertical. (See reference...) Figure 3 The direction indicated by the middle arrow b allows coolant located on the lower side to be drawn into the injection pipe 300; the pipes can be quickly disassembled and maintained by connecting the first segment pipe 320, the second segment pipe 330, and the pulse damping pipe 500 through the tee adapter 340.

[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 disposed in the first segmented pipe 320, the pulse drive module 200 is connected to the second segmented pipe 330 and the liquid suction line 100, and the pulse drive module 200 is located on the lower side of the pulse damping line 500.

[0054] In this embodiment, when a first pressure detection module 400 and a first control valve 310 are installed on the first segmented pipe 320, the first pressure detection module 400 can detect pressure changes in real time during the process of the pulse drive module 200 pumping coolant to the injection pipe 300, ensuring that the pressure value can be accurately fed back, thereby enabling more timely control of the pulse drive module 200 to stop operating. The first control valve 310 is used to regulate the flow of coolant in the first segmented pipe 320, allowing the coolant to smoothly enter the storage system through the first control valve 310. The pulse damping pipe 500 is arranged on the upper side of the pulse drive module 200, which helps to promptly alleviate 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 fixture system also includes a first overpressure pipeline 600. The first overpressure pipeline 600 is located in the first segmented pipe 320 and on the side of the first control valve 310 away from the pulse drive module 200. The first overpressure pipeline 600 is equipped with a first pressure control valve 610. When the pressure of the coolant in the injection pipeline 300 exceeds the pressure threshold of the first pressure control valve 610, the first pressure control valve 610 opens. The first pressure control valve 610 is a back pressure valve.

[0056] In this embodiment, the overpressure situation during the injection process is effectively handled by setting up a first overpressure pipeline 600. During the injection process, if the first pressure detection module 400 malfunctions and fails to shut down the pulse drive module 200 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 will automatically open, allowing excess coolant to be discharged through the first overpressure pipeline 600, thereby preventing the automatic injection fixture system from being damaged due to excessive pressure. The first overpressure pipeline 600 is set in the first segmented pipe 320 and located on the side of the first control valve 310 away from the pulse drive module 200, so as 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, thus 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 fixture system also includes a second overpressure pipeline 700. The second overpressure pipeline 700 is located in the second segmented pipe 330 and is situated below the first segmented pipe 320 in the second direction. The second overpressure pipeline 700 is equipped with a second pressure control valve 710. 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 injection pipeline 300 exceeds the pressure threshold of the second pressure control valve 710, the second pressure control valve 710 opens. The second overpressure pipeline 700 is a back pressure valve.

[0058] In this embodiment, the second overpressure line 700 further improves the pressure protection mechanism of the automatic liquid injection fixture system. The second overpressure line 700 is arranged on the second segmented pipe 330 and located below the first segmented pipe 320 in the second direction, resulting in a shorter distance between the second overpressure line 700 and the pulse drive module 200. This facilitates the second pressure control valve 710 in quickly sensing and responding to pressure changes at the output of the pulse drive module 200. When the coolant pressure in the second segmented pipe 330 within the injection line 300 exceeds the pressure threshold set by the second pressure control valve 710, the second pressure control valve 710 opens the second overpressure line 700, allowing excess coolant to be discharged through it. Since the pressure threshold of the second pressure control valve 710 is higher than that of the first pressure control valve 610, the second overpressure line 700 will activate as a supplementary protection mechanism if the pressure in the injection line 300 cannot be reduced to a safe range after the first overpressure line 600 is opened. Through the coordinated action of the first overpressure line 600 and the second overpressure line 700, a graded overpressure protection mechanism is formed to ensure that the pressure of the injection line 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 fixture system also includes a liquid discharge pipeline 800. The liquid discharge pipeline 800 is located in the second segment pipe 330 and is situated below the first segment pipe 320 in the second direction. The liquid discharge pipeline 800 is equipped 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-joint ball valve.

[0060] In this embodiment, the automatic liquid injection fixture system ensures that the coolant in the injection pipe 300 can be effectively discharged after the system stops operating by setting up a drain pipe 800. The drain pipe 800 is located in the second segment pipe 330 and below the first segment pipe 320. It utilizes gravity and the internal pressure difference to allow the coolant in the first segment pipe 320 to flow back through the injection pipe 300 to the drain pipe 800 and be discharged from the system. Simultaneously, the location of the injection pipe 300 within the second segment pipe 330 also ensures that the coolant in the second segment pipe 330 can smoothly enter and be discharged from it.

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

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

[0063] In addition, the outlet of the first overpressure line 600 is connected to the drain line 800 and is located between the second control valve 810 and the outlet of the drain line 800, so that the first overpressure line 600 can discharge coolant directly through the drain line 800 without relying on the opening of the second control valve 810 in the drain line 800.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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 merely illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An automatic liquid injection tool system, characterized by, The automated liquid injection fixture system includes: The suction pipe (100) is connected to the coolant storage chamber; A pulse drive module (200) is connected to one end of the liquid suction pipe (100) and is used to pump coolant through the liquid suction pipe (100) at a set interval frequency. The pulse drive module (200) is used to simultaneously remove gas from the energy storage system during the liquid injection process. The liquid injection pipeline (300) is connected at one end 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. A first pressure detection module (400) is installed on the injection pipeline (300) and 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, it controls the pulse drive module (200) to stop running.

2. The automatic liquid injection tool system according to claim 1, wherein: The injection line (300) is provided with a first control valve (310), which is located on the side of the first pressure detection module (400) away from the pulse drive module (200). The first control valve (310) is used to connect and close the injection line (300).

3. The automatic liquid injection tool system according to claim 2, wherein: The injection line (300) is provided with a pulse damping line (500) on the side near the pulse drive module (200). The pulse damping line (500) includes a diaphragm damper (510) and a second pressure detection module (520); and / or, the suction line (100) is also provided with a filter (110).

4. The automatic liquid injection tool system according to claim 3, wherein: The injection line (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 line (500) respectively.

5. The automatic liquid injection tool system according to claim 4, wherein: The first pressure detection module (400) and the first control valve (310) are installed in the first segmented pipe (320). The pulse drive module (200) is connected to the second segmented pipe (330) and the liquid suction line (100). The pulse drive module (200) is located on the lower side of the pulse damping line (500).

6. The automatic liquid injection tool system according to claim 5, wherein: The automatic liquid injection fixture system also includes a first overpressure pipeline (600), which is located on the first segmented pipe (320) and on the side of the first control valve (310) away from the pulse drive module (200). The first overpressure pipeline (600) is equipped with a first pressure control valve (610). When the pressure of the coolant in the injection pipeline (300) exceeds the pressure threshold of the first pressure control valve (610), the first pressure control valve (610) opens.

7. The automatic liquid injection tool system according to claim 6, wherein: The automatic liquid injection fixture system also includes a second overpressure pipeline (700), which is located on the second segmented pipe (330) and below the first segmented pipe (320) in the second direction. The second overpressure pipeline (700) is equipped 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 injection pipeline (300) exceeds the pressure threshold of the second pressure control valve (710), the second pressure control valve (710) opens.

8. The automatic liquid injection tool system according to claim 7, wherein: The automatic liquid injection fixture system also includes a liquid discharge pipeline (800), which is disposed on the second segmented pipe (330) and located below 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).

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

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

Images