CN221035306U - Liquid cooling pipeline system for energy storage system and energy storage system - Google Patents

Abstract

The utility model provides a liquid cooling pipeline system and an energy storage system for an energy storage system, wherein the liquid cooling pipeline system comprises: the liquid leakage detection mechanism is arranged on the liquid supply pipeline; the liquid leakage detection mechanism comprises a joint, a packaging layer and a capacitance sensor. The joint is communicated with the liquid supply pipeline; the packaging layer at least surrounds and wraps the outer side of the joint; the capacitive sensor is arranged on the outer side of the joint and comprises a first electrode and a second electrode, the first electrode and the second electrode are buried in the packaging layer, and at least one part of the first electrode is located in a gap between the packaging layer and the joint. According to the utility model, the liquid leakage detection mechanism is arranged on the key point of the liquid supply pipeline of the liquid cooling system, dielectric constant information of the key point of each level on the liquid supply pipeline is collected, and rapid detection and accurate judgment of the liquid leakage condition of the liquid leakage point on the liquid supply pipeline are realized.

Description

Liquid cooling pipeline system for energy storage system and energy storage system

Technical Field

The utility model relates to the technical field of energy storage systems, in particular to a liquid cooling pipeline system for an energy storage system and the energy storage system.

Background

In the time environment where global advocates to enhance environmental protection and sustainable utilization of resources, there is an increasing demand for applications of high-performance energy storage systems, such as energy storage containers used in ocean shipping, where the stability of the cycle performance of such energy storage systems is affected by the operating temperature of the internal energy storage device. Therefore, the effectiveness and reliability of the heat dissipation system applied to the energy storage system are important, and the liquid cooling pipeline system is gradually applied to the energy storage system due to high heat dissipation efficiency and low power consumption.

At present, in the liquid cooling pipe system applied to energy storage system, with the liquid supply pipeline that supplies cold unit series connection extend to each battery cluster and each battery package in the battery cluster step by step, this effective cooling of energy storage system in energy storage and energy supply in-process effectively guarantees. However, due to factors such as flowing impact of cooling medium and mechanical vibration of equipment, liquid leakage is easy to occur at the joint and turning position of the liquid supply pipeline, and the safety and liquid cooling efficiency of an electrical system are affected, so that accurate and rapid detection and judgment of the liquid leakage point position are required.

However, at present, the liquid leakage detection of the liquid cooling pipeline system is often arranged at the end of the cooling unit, a liquid level detection sensor is arranged in a liquid storage tank of the cooling unit or the inlet and outlet water pressure of the cooling unit is detected, and the prior art lacks a liquid leakage detection mechanism which can be integrally arranged on the liquid supply pipeline and cannot detect and judge the liquid leakage point position of the liquid supply pipeline rapidly and accurately.

Accordingly, there is a need to design a liquid cooled piping system and energy storage system for an energy storage system to address the above-described issues.

Disclosure of utility model

In view of the shortcomings of the prior art, the utility model provides a liquid cooling pipeline system for an energy storage system and the energy storage system, wherein the liquid cooling pipeline system can integrate a liquid leakage detection mechanism on a liquid supply pipeline, so that the technical problem that the liquid cooling pipeline system in the prior art cannot rapidly and accurately detect the liquid leakage point of the liquid supply pipeline is solved.

To achieve the above and other related objects, the present utility model provides a liquid cooling piping system for an energy storage system, comprising: a liquid supply pipeline and a liquid leakage detection mechanism;

Wherein the liquid leakage detection mechanism is arranged on the liquid supply pipeline; the liquid leakage detection mechanism comprises a joint, a packaging layer and a capacitance sensor. The joint is communicated with the liquid supply pipeline; the packaging layer at least surrounds and wraps the outer side of the joint; the capacitive sensor is arranged on the outer side of the joint and comprises a first electrode and a second electrode, the first electrode and the second electrode are buried in the packaging layer, and at least one part of the first electrode is located in a gap between the packaging layer and the joint.

In an example of the present utility model, a distance between the first electrode and the second electrode is 0.1mm to 2mm.

In one example of the present utility model, the first electrode has a telescoping probe, and the top of the telescoping probe elastically abuts against the outside of the joint.

In one example of the present utility model, the liquid supply line includes an upstream pipe and a downstream pipe at a position where the liquid leakage detecting mechanism is installed, and the upstream pipe and the downstream pipe are communicated through the joint.

In an example of the present utility model, the liquid supply pipeline includes a plurality of stages of pipelines connected in stages, and the liquid leakage detection mechanism is installed at a connection position between adjacent stages of pipelines.

In an example of the present utility model, the leakage detecting mechanism is installed at a bending position of the liquid supply pipeline.

In one example of the utility model, the joint is an elbow.

In an example of the present utility model, the capacitive sensor further includes a capacitance acquisition chip electrically connected to the first electrode and the second electrode.

In an example of the present utility model, the liquid cooling pipeline system further includes a data transmission unit and a data processing unit, the capacitance acquisition chip is connected with the data processing unit in a communication manner through the data transmission unit, and the data processing unit is connected with an energy storage management system of the energy storage system in a communication manner.

The utility model also provides an energy storage system, which comprises the liquid cooling pipeline system according to any one of the examples.

According to the utility model, the liquid leakage detection mechanism is arranged on the key point of the liquid supply pipeline of the liquid cooling system, the dielectric constant information of the key point of each level pipeline on the liquid supply pipeline is collected through the liquid leakage detection mechanisms which are arranged in a distributed manner, so that the rapid detection and the accurate judgment of the liquid leakage condition of the liquid leakage point on the liquid supply pipeline are realized, the opening and closing actions of the valves of the main pipeline and the branch pipeline of each level on the liquid supply pipeline are further guided to accurately seal the liquid leakage pipeline section, and the maintenance efficiency of the energy storage system is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other embodiments may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a liquid cooling pipeline system according to an embodiment of the utility model;

FIG. 2 is a schematic cross-sectional view of an installation structure of a leak detection mechanism on a liquid supply pipeline according to an embodiment of the utility model;

FIG. 3 is a schematic diagram of a capacitive sensor according to an embodiment of the utility model;

Fig. 4 is a schematic operation diagram of a liquid leakage detection system of a liquid cooling pipeline according to an embodiment of the utility model.

Description of element reference numerals

100. A liquid supply pipeline; 110. a primary pipeline; 120. a diode circuit; 130. a third-stage pipeline; 140. an upstream pipe; 150. a downstream pipe; 200. a liquid leakage detection mechanism; 210. a joint; 220. an encapsulation layer; 230. a capacitive sensor; 231. a first electrode; 232. a second electrode; 233. and a capacitance acquisition chip.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the utility model is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the utility model. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.

Where numerical ranges are provided in the examples, it is understood that unless otherwise stated herein, both endpoints of each numerical range and any number between the two endpoints are significant both in the numerical range. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs and to which this utility model belongs, and any method, apparatus, or material of the prior art similar or equivalent to the methods, apparatus, or materials described in the examples of this utility model may be used to practice the utility model.

It should be understood that the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like are used in this specification for descriptive purposes only and not for purposes of limitation, and that the utility model may be practiced without materially departing from the novel teachings and without departing from the scope of the utility model.

Referring to fig. 1 to 3, the present utility model provides a liquid cooling pipeline system for an energy storage system, the liquid cooling pipeline system includes a liquid supply pipeline 100 and a liquid leakage detection mechanism 200, and the energy storage system to which the liquid cooling pipeline system is applied includes a refrigerating unit and an energy storage device. In the liquid cooling pipeline system, a liquid supply pipeline 100 is connected with a refrigerating unit, the liquid supply pipeline 100 extends into each battery pack of the energy storage device step by step in a circulating loop mode, and the refrigerating unit sends a cooling medium into each battery pack through the liquid supply pipeline 100 so as to realize effective cooling of the energy storage system. The liquid leakage detection mechanism 200 is installed on a preset key detection point of the liquid supply pipeline 100, so as to be used for detecting the liquid leakage condition of a key detection node on the liquid supply pipeline 100 in real time. It should be noted that, the number of the leak detection mechanisms 200 installed on the liquid supply pipeline 100 may be one or more, and when a plurality of leak detection mechanisms 200 are installed on the liquid supply pipeline 100, the plurality of leak detection mechanisms 200 are respectively installed on key detection points on the liquid supply pipeline 100, and the plurality of leak detection mechanisms 200 respectively detect the leak condition of the liquid supply pipeline 100 at the detection points, and cooperatively confirm the specific position of the liquid supply pipeline 100 where the leak occurs, and instruct the valve of the leak section on the liquid supply pipeline 100 to perform the switching action, so as to only block the liquid supply of the leak section on the premise of maintaining the normal liquid supply of other branches of the liquid supply pipeline 100, thereby improving the maintenance efficiency of the liquid cooling pipeline system for the energy storage system.

As shown in fig. 2, fig. 2 illustrates a specific structure of the liquid leakage detecting mechanism 200, and the liquid leakage detecting mechanism 200 includes a joint 210, an encapsulation layer 220, and a capacitance sensor 230. The joint 210 is installed at a preset position of the liquid supply line 100, and the joint 210 communicates with the liquid supply line 100 at the installation position. Specifically, the liquid supply line 100 includes an upstream pipe 140 and a downstream pipe 150 at the installation position of the liquid leakage detecting mechanism 200, and the upstream pipe 140 and the downstream pipe 150 are communicated through a joint 210. The two end ports of the connector 210 may be respectively connected to the upstream pipe 140 and the downstream pipe 150, and the communication manner between the connector 210 and the upstream pipe 140 and the downstream pipe 150 may be not limited, so long as the sealing connection between the connector 210 and the liquid supply pipe 100 is ensured, for example, the connector 210 and the ports of the upstream pipe 140 and the downstream pipe 150 may be connected by adopting a sealing connection manner such as threaded connection, flange connection, welding, clamping connection, interference fit, and the like.

As shown in fig. 2, the packaging layer 220 at least surrounds and wraps the outside of the connector 210, and the packaging layer 220 at least insulates and wraps the liquid supply pipeline 100 at the position of the liquid leakage detection mechanism 200, so as to package and protect the liquid leakage detection mechanism 200. Illustratively, the encapsulation 220 may only wrap around the outside of the connector 210, completely wrapping the connector 210 and the connection of the connector 210 to the fluid supply line 100; the packaging layer 220 may also completely surround the outside of the liquid supply pipe 100, and the packaging layer 220 insulates and encapsulates the whole liquid supply pipe 100 to avoid the liquid supply pipe 100 from being electrically contacted with the outside. It should be noted that the material of the encapsulation layer 220 is not limited, and the encapsulation layer 220 may be any commercially available insulating material, for example, may be a solid insulating material such as rubber, resin, foam, etc., and in some embodiments, the encapsulation layer 220 is made of foam, and the encapsulation layer 220 made of foam material has better insulation and heat preservation properties.

As shown in fig. 2 to 3, a capacitance sensor 230 is installed at the outer side of the joint 210, and the capacitance sensor 230 detects a change of the filling medium between the joint 210 and the encapsulation layer 220 to determine whether the liquid supply line 100 at the position of the joint 210 is leaked. The capacitive sensor 230 includes a first electrode 231 and a second electrode 232, the first electrode 231 and the second electrode 232 are buried in the encapsulation layer 220, at least a portion of the first electrode 231 is located in a gap between the encapsulation layer 220 and the connector 210, an end portion of the first electrode 231 near the connector 210 is exposed in a space between the encapsulation layer 220 and the connector 210, and the second electrode 232 can be completely buried in the encapsulation layer 220.

As shown in fig. 2, the first electrode 231 and the second electrode 232 together form a capacitance detection end of the capacitance sensor 230, and the capacitance sensor 230 detects whether a filling medium between the joint 210 and the encapsulation layer 220 changes based on a capacitance value between the first electrode 231 and the second electrode 232, so as to determine whether the liquid leakage phenomenon exists in the liquid supply pipeline 100 at a detection point where the liquid leakage detection mechanism 200 is located. Specifically, in the capacitive sensor 230, the capacitance C _N between the first electrode 231 and the second electrode 232 isWhere ε ₀ is the vacuum dielectric constant, ε _r is the relative dielectric constant of the dielectric medium between the first electrode 231 and the second electrode 232, S is the effective area of the capacitor formed by the first electrode 231 and the second electrode 232, and D _ave is the average distance between the first electrode 231 and the second electrode 232. When no leakage occurs in the liquid supply pipeline 100, insulating media such as vacuum, air or protective gas are filled between the connector 210 and the packaging layer 220, direct media between the first electrode 231 and the second electrode 232 are mainly insulating media such as the packaging layer 220, and the dielectric constant of the dielectric media between the first electrode 231 and the second electrode 232 is close to the dielectric constant of vacuum; when the liquid supply pipeline 100 at the position of the liquid leakage detection mechanism 200 leaks, the cooling medium is filled between the joint 210 and the packaging layer 220, the part of the first electrode 231 located in the gap between the joint 210 and the packaging layer 220 is contacted with the cooling medium, the dielectric constant of the dielectric medium between the first electrode 231 and the second electrode 232 is greatly changed compared with that of the liquid supply pipeline without leakage, so that the capacitance value between the first electrode 231 and the second electrode 232 is also obviously changed, and the capacitance sensor 230 can determine that the liquid supply pipeline 100 at the region of the joint 210 leaks based on the obviously changed capacitance value.

Therefore, the capacitive sensor 230 has the advantages of low power consumption, high sensitivity and flexible installation, and the capacitive sensor 230 can be installed at the interface and the bending position of the liquid supply pipeline 100, which are easy to leak, so as to realize rapid detection and accurate judgment of the liquid leakage point of the liquid supply pipeline 100.

As shown in fig. 2 and 3, in some embodiments, in the capacitive sensor 230, the first electrode 231 and the second electrode 232 are disposed opposite to each other to form a capacitance, and an average distance between the first electrode 231 and the second electrode 232 is 0.1mm to 2mm. For example, the minimum distance between the first electrode 231 and the second electrode 232 may be 0.1mm, 0.3mm, 0.5mm, 0.7mm, 1mm, 1.3mm, 1.5mm, 1.7mm, or 2mm.

As shown in fig. 2, in some embodiments, in the capacitive sensor 230, the first electrode 231 has a telescopic probe, the telescopic probe is located at one end of the first electrode 231 near the joint 210, the telescopic probe at the end of the first electrode 231 extends into a gap between the joint 210 and the encapsulation layer 220, and the top of the telescopic probe elastically abuts against the outer side of the joint 210. Besides the first electrode 231 contacts and detects the filling medium between the joint 210 and the packaging layer 220 through the telescopic probe, the gap between the joint 210 and the packaging layer 220 is changed due to the fact that the flexible telescopic characteristic of the telescopic probe is used for adapting to the mechanical vibration of the liquid supply pipeline 100, so that the first electrode 231 is prevented from being scratched on the outer wall of the pipeline due to the fact that the first electrode 231 is in rigid contact with the joint 210 or the liquid supply pipeline 100 while the first electrode 231 is always located in the gap between the joint 210 and the packaging layer 220.

As shown in fig. 3, in some embodiments, the capacitance sensor 230 further includes a capacitance acquisition chip 233, where the capacitance acquisition chip 233 is electrically connected to the first electrode 231 and the second electrode 232, and the capacitance acquisition chip 233 is configured to acquire a capacitance value between the first electrode 231 and the second electrode 232, so as to determine whether the liquid leakage phenomenon occurs in the liquid supply pipeline 100 at a liquid leakage detection point where the capacitance sensor 230 is located. It should be noted that, the electrical connection manner between the capacitance acquisition chip 233 and the first electrode 231 and the second electrode 232 may be a wireless electrical connection or a wired electrical connection, and the specific electrical connection manner between the capacitance acquisition chip 233 and the first electrode 231 and the second electrode 232 may not be limited, for example, in an example, the capacitance acquisition chip 233 is electrically connected to the first electrode 231 and the second electrode 232 respectively through insulated wires.

In addition, as shown in fig. 4, fig. 4 shows a liquid cooling pipeline leakage detection system according to the present utility model, in some embodiments, the liquid cooling pipeline system further includes a data transmission unit and a data processing unit, each capacitance sensor 230 installed on the liquid supply pipeline 100 is communicatively connected to the data processing unit through the data transmission unit, the data processing unit is communicatively connected to an energy storage management system of the energy storage system, and the energy storage management system receives leakage detection information of the leakage detection mechanism 200 for the liquid supply pipeline 100 and visually presents the leakage condition of the liquid supply pipeline 100 to a staff. Specifically, the capacitance acquisition chip 233 of the capacitance sensor 230 is in communication connection with a data transmission unit, the data processing unit is in communication connection with the data processing unit, and the data processing unit is in communication connection with an energy storage management system of the energy storage system. The capacitance acquisition chip 233 transmits the acquired capacitance information to a data transmission unit, and the data transmission unit appends the position information of the capacitance sensor 230 on the basis of the capacitance information and transmits the position information to a data processing unit; the data processing unit receives the capacitance information and the position information of each capacitance sensor 230 sent by the summarized data transmission unit and sends the capacitance information and the position information to the energy storage management system; finally, the energy storage management system visually presents the leakage condition of each detection point on the liquid supply pipeline 100 to the staff. It should be noted that, the above information transmission and processing manner may be a conventional manner in the electronic communication field, and the specific information transmission and processing manner is not the key point of protection of the present utility model, and is not described herein again.

In some embodiments, as shown in fig. 1, the energy storage device comprises a plurality of rows of battery clusters electrically connected in parallel or in series, each row of battery clusters comprising a plurality of battery packs electrically connected in a stacked manner, and the battery packs are packaged with a plurality of unit batteries arranged in series. In order to adapt to the multi-stage energy storage unit structure of the energy storage system, the liquid supply pipeline 100 comprises multi-stage pipelines which are communicated step by step and extend into each battery cluster and the battery pack of the battery cluster step by step, so that the energy storage process of the energy storage system is effectively cooled. The leakage detection mechanisms 200 are respectively installed at the connection positions of the adjacent level pipelines in the multi-level pipeline, the connectors 210 of the leakage detection mechanisms 200 can be used as interfaces to communicate with the adjacent level pipelines, and the capacitance sensors 230 are packaged in the packaging layers 220 outside the connectors 210 to detect the leakage condition at the connection positions of the level pipelines in real time, so that the leakage sections of the liquid supply pipeline 100 can be cooperatively determined when the liquid supply pipeline 100 leaks.

For example, as shown in FIG. 1, in one example, the liquid supply line 100 includes a three-level line system, and the liquid supply line 100 specifically includes a primary line 110, a plurality of secondary lines 120 connected to the primary line 110, and a plurality of tertiary lines 130 connected to the secondary lines 120. The primary pipeline 110 is connected to the refrigerating unit, the plurality of secondary pipelines 120 respectively extend into each battery cluster, the secondary pipelines 120 extend along the stacking direction of the battery packs in the battery clusters, the tertiary pipeline 130 connected to the secondary pipelines 120 extends through the battery packs, and the tertiary pipeline 130 cools down each single battery in the battery packs. The leakage detection mechanism 200 is respectively disposed at the connection position of the primary pipeline 110 and the secondary pipeline 120 and the connection position between the secondary pipeline 120 and the tertiary pipeline 130, the connector 210 in the leakage detection mechanism can be used as an interface to connect the adjacent primary pipeline 110 and secondary pipeline 120 and tertiary pipeline 130, the capacitance sensor 230 is respectively packaged in the packaging layer 220 outside each connector 210, and the capacitance sensor 230 performs real-time leakage detection on the connection position between the primary pipeline 110 and secondary pipeline 120 and between the secondary pipeline 120 and tertiary pipeline 130. The leakage detection mechanism 200 is used for realizing rapid detection and accurate judgment of the leakage point position of the three-stage pipeline 130 by collecting dielectric constant information of the connection nodes of the liquid supply pipelines 100 of each level.

In addition, as shown in fig. 1, the leakage detecting mechanism 200 is also installed at other critical detecting points in the liquid supply pipeline 100 where leakage is likely to occur, such as at the joint positions of other adjacent pipelines in the liquid supply pipeline 100 and at the bending positions of the liquid supply pipeline 100. In some embodiments, the leak detection mechanism 200 is installed at a bending position of the liquid supply pipe 100, and the joint 210 in the leak detection mechanism 200 is disposed at the bending position in a bent pipe structure, and two ends of the joint 210 are respectively communicated with the upstream pipe 140 and the downstream pipe 150 of the liquid supply pipe 100 at the bending position.

As shown in fig. 1 to 4, the present invention further provides an energy storage system, where the energy storage system includes the liquid cooling pipeline system according to any one of the embodiments described above, and the energy storage system may supply power to any one of working devices on the market, and the working devices may be vehicles, ships, spacecrafts, electric tools, or containers. In some embodiments, the energy storage system includes a refrigeration unit, a liquid cooled piping system, an energy storage device, and an energy storage management system. In the energy storage system, the liquid cooling pipeline system comprises a liquid supply pipeline 100 and a liquid leakage detection mechanism 200, wherein the liquid supply pipeline 100 is communicated with the refrigerating unit, the liquid supply pipeline 100 extends into each battery pack of the energy storage device step by step in a circulating loop mode, and the liquid supply pipeline 100 sends cooling medium in the refrigerating unit to each battery pack of the energy storage device so as to realize effective cooling of the energy storage system. The liquid leakage detection mechanism 200 is installed on a preset key detection point on the liquid supply pipeline 100, so as to be used for detecting the liquid leakage condition of each key detection node on the liquid supply pipeline 100 in real time, and cooperatively confirming the specific position of the liquid supply pipeline 100 where liquid leakage occurs. The liquid leakage detection mechanism 200 is also in communication connection with an energy storage management system, the energy storage management system receives capacitance information and position information of each liquid leakage detection mechanism 200, and finally the energy storage management system carries out visual display and alarm on the liquid leakage condition of each detection point on the liquid supply pipeline 100, so that real-time monitoring of the liquid leakage condition in the liquid supply pipeline 100 is realized.

In summary, according to the application, the liquid leakage detection mechanisms are arranged on the key points of the liquid supply pipeline of the liquid cooling system, the dielectric constant information of the key points of each level pipeline on the liquid supply pipeline is collected through the liquid leakage detection mechanisms which are arranged in a distributed mode, the respective position information and capacitance information are summarized to the energy storage management system, and the liquid leakage points on the liquid supply pipeline are visually displayed by the energy storage management system, so that the liquid leakage condition of the liquid leakage points on the liquid supply pipeline is rapidly detected and accurately judged.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. A liquid cooled piping system for an energy storage system, comprising:

A liquid supply pipeline;

The liquid leakage detection mechanism is arranged on the liquid supply pipeline;

Wherein, weeping detection mechanism includes:

The joint is communicated with the liquid supply pipeline;

The packaging layer at least surrounds and wraps the outer side of the joint;

The capacitive sensor is arranged on the outer side of the joint and comprises a first electrode and a second electrode, the first electrode and the second electrode are buried in the packaging layer, and at least one part of the first electrode is located in a gap between the packaging layer and the joint.

2. The liquid cooled piping system for an energy storage system of claim 1, wherein a distance between said first electrode and said second electrode is 0.1mm to 2mm.

3. The liquid cooled piping system for an energy storage system of claim 1, wherein said first electrode has a telescoping probe, the top of which is in resilient abutment with the outside of said joint.

4. The liquid cooled piping system for an energy storage system of claim 1, wherein said liquid supply piping comprises an upstream pipe and a downstream pipe at a location where said liquid leakage detection mechanism is installed, said upstream pipe and said downstream pipe being in communication through said joint.

5. The liquid cooling piping system for an energy storage system according to claim 1, wherein said liquid supply piping comprises a plurality of stages of piping, said plurality of stages of piping being connected stepwise, said liquid leakage detecting mechanism being installed at a connection position between adjacent ones of said plurality of stages of piping.

6. The liquid cooled piping system for an energy storage system of claim 1, wherein said liquid leakage detection mechanism is mounted at a bend of said liquid supply piping.

7. The liquid cooled piping system for an energy storage system of claim 6, wherein said joint is an elbow.

8. The liquid cooled piping system for an energy storage system of claim 1, wherein said capacitive sensor further comprises a capacitance acquisition chip, said capacitance acquisition chip being electrically connected to said first electrode and said second electrode.

9. The liquid cooling pipeline system for an energy storage system according to claim 8, further comprising a data transmission unit and a data processing unit, wherein the capacitance acquisition chip is in communication connection with the data processing unit through the data transmission unit, and the data processing unit is in communication connection with an energy storage management system of the energy storage system.

10. An energy storage system comprising the liquid cooled piping system of any of claims 1 to 9.