Water leakage detection device and energy storage prefabricated cabin

Abstract

This invention relates to the field of prefabricated energy storage cabin technology, and discloses a leakage detection device and a prefabricated energy storage cabin. The leakage detection device is applied to the drain outlet of the prefabricated energy storage cabin and includes a submerged shell, a partition structure, and a detection mechanism. The submerged shell is located at the drain outlet and has a drainage chamber connected to the drain outlet, with a drain outlet at the bottom of the drainage chamber. The partition structure protrudes from the bottom of the drainage chamber and is arranged circumferentially around the drain outlet to divide the drainage chamber into an inlet area and an outlet area. The partition structure has water passage holes that communicate with both the inlet and outlet areas, and these water passage holes are spaced apart from the bottom of the drainage chamber, with a minimum distance of L1 between them. The detection mechanism is located in the inlet area and has a detection end spaced apart from the bottom of the drainage chamber, with a minimum distance of L2 between it and the bottom of the drainage chamber, where L2 < L1. This invention can reduce the risk of false alarms in leakage detection and reduce blind spots in leakage detection.

Description

Technical Field

[0001] This invention relates to the field of energy storage prefabricated cabin technology, and in particular to a water leakage detection device and an energy storage prefabricated cabin. Background Technology

[0002] The energy storage system of prefabricated energy storage cabins generally adopts liquid cooling for heat management. Since there is a risk of leakage and condensation during the operation of the liquid cooling system, existing prefabricated energy storage cabins need to be equipped with detection devices to monitor for leakage.

[0003] Currently, most existing energy storage systems use water immersion rope detection devices for leak monitoring. These devices have a rope-like structure and are wrapped around the floor of the prefabricated energy storage compartment. They typically consist of two sensor wires spirally wound around the central axis of the PE (polyethylene) core. When water leaks into the prefabricated compartment, filling the space between the two sensor wires, the impedance between the wires changes, triggering an alarm. However, this type of detection device is prone to false alarms when foreign objects such as iron filings or dust are mixed in with the sensor wires, and it cannot detect leaks outside the area where the water immersion rope is installed, resulting in a detection blind spot. Summary of the Invention

[0004] To address the shortcomings of the prior art, the present invention aims to provide a leak detection device and a prefabricated energy storage compartment, which are intended to reduce the risk of false leak detection and decrease the blind spot in leak detection.

[0005] To achieve the above objectives, the present invention provides a water leakage detection device applied to the drain outlet of an energy storage prefabricated compartment, the water leakage detection device comprising: A submerged housing is provided at the drain outlet, the submerged housing having a drainage cavity communicating with the drain outlet, and a drainage outlet being provided at the bottom of the drainage cavity; A partition structure protrudes from the bottom of the drainage cavity and is arranged in a ring around the circumference of the drain outlet to divide the drainage cavity into an inlet area and an outlet area. The partition structure has a water passage hole that penetrates the partition structure and communicates with both the inlet and outlet areas. The water passage hole is spaced apart from the bottom of the drainage cavity, and the shortest vertical distance between the water passage hole and the bottom of the drainage cavity is L1. The detection mechanism is located in the water inlet area and has a detection end spaced apart from the bottom of the drain cavity. The shortest vertical distance between the detection end and the bottom of the drain cavity is L2, and L2 < L1.

[0006] In one embodiment, the partition structure includes: A first main body is disposed at the bottom of the drainage cavity and has an annular structure surrounding the drainage outlet. The sidewall of the first main body is provided with the water passage hole. The second main body is located on the outer periphery of the first main body and above the water passage hole, and the detection mechanism is connected to the second main body.

[0007] In one embodiment, the detection mechanism includes: A connecting block, one end of which is disposed on the second main body and arranged vertically with the second main body, and the other end of which protrudes from the outer edge of the second main body and has a mounting hole; at least one gasket is provided between the connecting block and the second main body; and A detection element is inserted through the mounting hole and protrudes from the bottom side of the connecting block. Two detection probes are spaced apart on the side of the detection element facing the bottom wall of the drainage cavity to form the detection end. The bottom ends of the two detection probes are located on the same horizontal plane. In one embodiment, the shortest vertical distance between the second main body and the bottom of the drainage cavity is adjustable.

[0008] In one embodiment, the side wall of the first main body is further provided with a water passage gap, and the shortest distance in the vertical direction between the water passage gap and the bottom of the drainage cavity is less than the shortest distance in the vertical direction between the water passage hole and the bottom of the drainage cavity.

[0009] In one embodiment, the second main body is provided with a plurality of grooves spaced apart in the circumferential direction, and the plurality of grooves are arranged symmetrically about the center of the partition structure.

[0010] In one embodiment, the submerged shell includes: A base plate, wherein the base plate is provided with the drainage outlet; and Multiple side plates are arranged sequentially along the circumference of the base plate and together with the base plate to form the drainage cavity. Each side plate has a guide surface on the side facing the base plate that can guide liquid downward into the water inlet area.

[0011] In one embodiment, the leakage detection device further includes a control component and an alarm component, wherein the control component is signal-connected to the alarm component and the detection mechanism.

[0012] In one embodiment, the top side of the drainage cavity is provided through and communicates with the drain outlet, wherein the detection mechanism is housed within the drainage cavity; or, at least a portion of the detection mechanism protrudes from the top side of the drainage cavity.

[0013] The present invention also proposes an energy storage prefabricated cabin, including the leakage detection device described in any one of the preceding claims, wherein at least one of the drain outlets is provided on the periphery of the bottom of the energy storage prefabricated cabin, and the top surface of the bottom of the cabin is inclined downward from its center to the periphery, and at least one of the drain outlets is provided with the leakage detection device.

[0014] This invention provides a leak detection device and a prefabricated energy storage compartment, which have the following advantages compared with the prior art: In this embodiment of the invention, the submerged housing of the leakage detection device is located at the drain outlet of the energy storage prefabricated tank, and the submerged housing has a drainage chamber connected to the drain outlet, with a drain outlet at the bottom of the drainage chamber. A partition structure at the bottom of the drainage chamber divides the drainage chamber into an inlet area and an outlet area, and the partition structure has water passages communicating with the inlet and outlet areas respectively. The detection mechanism is located in the inlet area and has a detection end spaced apart from the bottom of the drainage chamber. When leakage occurs in the energy storage prefabricated tank, regardless of where the leakage occurs, the leaked liquid will naturally flow to the inlet area of ​​the drainage chamber at the drain outlet. The height difference between the water passage and the detection end ensures that the detection end is located on the necessary drainage path of the energy storage prefabricated tank, thereby effectively reducing blind spots in leakage detection. Furthermore, by enabling the detection mechanism to be isolated from the bottom of the prefabricated energy storage compartment and triggering the detection only when the liquid level in the inlet area rises to the contact detection end, false alarms caused by foreign objects can be effectively avoided, improving the reliability of the detection. This, in turn, helps to reduce the downtime failure rate of the energy storage system in the prefabricated energy storage compartment and improve the reliability of the energy storage system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the water leakage detection device according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the water leakage detection device described in an embodiment of the present invention.

[0016] Figure 3 This is the present invention. Figure 2 A magnified view of point A in the image; Figure 4 This is the present invention. Figure 2 A partial enlarged view of another embodiment at point A in the diagram; Figure 5 This is a schematic diagram of the partition structure described in an embodiment of the present invention; Figure 6 This is the present invention. Figure 5 A magnified view of section B in the image; Figure 7 This is a schematic diagram of the detection mechanism described in an embodiment of the present invention; Figure 8 This is an exploded view of the detection mechanism described in the embodiment of the present invention; Figure 9 This is another structural schematic diagram of the water leakage detection device described in an embodiment of the present invention; Figure 10 This is a schematic diagram illustrating the application of the water leakage detection device described in an embodiment of the present invention.

[0017] In the figure, 100 is a leak detection device; 10 is a submerged shell; 11 is a drainage chamber; 11a is a water inlet area; 11b is a water outlet area; 12 is a bottom plate; 121 is a drain outlet; 13 is a side plate; 131 is a guide surface; 20 is a partition structure; 21 is a first main body; 211 is a water passage hole; 212 is a water passage gap; 22 is a second main body; 221 is a groove; 30 is a detection mechanism; 31 is a connecting block; 311 is a mounting hole; 312 is a first connecting hole; 32 is a gasket; 331 is a second connecting hole; 33 is a detection component; 33a is a detection end; 331 is a detection probe; 40 is a leak detection plate; 50 is a fastener; 60 is a control component; 200 is the bottom of the tank; 210 is a drain outlet. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0019] It should be understood that the terms "before," "after," etc., are used in this invention to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, "before" information can also be called "after" information, and "after" information can also be called "before" information, without departing from the scope of this invention.

[0020] like Figure 1 and Figure 2 As shown, a leakage detection device 100 according to an embodiment of the present invention is applied to the drain outlet 210 of a prefabricated energy storage compartment. It includes a submerged shell 10, a partition structure 20, and a detection mechanism 30. The submerged shell 10 has a drainage cavity 11 with a top opening, and a drain outlet 121 is provided at the bottom of the drainage cavity 11. The partition structure 20 protrudes from the bottom of the drainage cavity 11 and is an annular structure arranged around the drain outlet 121 to divide the drainage cavity 11 into an inlet area 11a and an outlet area 11b. The partition structure 20 has… There is a water passage 211, which passes through the partition structure 20 and is connected to the water inlet area 11a and the water outlet area 11b respectively. The water passage 211 is spaced apart from the bottom of the drainage chamber 11, and the shortest vertical distance between the water passage 211 and the bottom of the drainage chamber 11 is L1. The detection mechanism 30 is located in the water inlet area 11a and has a detection end 33a spaced apart from the bottom of the drainage chamber 11. The shortest vertical distance between the detection end 33a and the bottom of the drainage chamber 11 is L2, and L2 < L1.

[0021] In some embodiments, the partition structure 20 can be a sheet metal structural component, and the water passage hole 211 opened on it can be elongated. The detection mechanism 30 can be directly mounted on the partition structure 20 for installation and fixation, or it can be mounted on the bottom of the drainage chamber 11, or fixed to the side wall of the drainer. Specifically, the detection mechanism 30 can be a leak detector, which can realize a leak warning by determining whether the detection end 33a is in contact with liquid. Alternatively, the detection mechanism 30 can also be a water level detector, etc. The specific implementation can be set according to actual needs and is not limited here.

[0022] Understandably, when a leak occurs inside the prefabricated energy storage compartment, regardless of where the leak occurs, the leaking liquid will naturally flow to the drain outlet 210, enter the inlet area 11a of the drainage chamber 11, then pass through the water passage hole 211 to the outlet, and finally be discharged through the drain outlet 121. By making the height of the detection end 33a lower than the height of the water passage hole 211, the height difference between the water passage hole 211 and the detection end 33a can be used to ensure that the detection end 33a is located on the necessary drainage path of the prefabricated energy storage compartment. This effectively reduces the blind spot in leak detection and enables the function of detecting leaks before draining.

[0023] Furthermore, by suspending the detection mechanism 30 within the drainage chamber 11, it is beneficial to avoid false alarms caused by foreign objects such as iron filings and dust adhering to the detection end 33a. This ensures that the detection is triggered only when the liquid level in the inlet area 11a rises to the point of contact with the detection end 33a, effectively preventing false alarms caused by foreign objects and improving the reliability of the detection. This, in turn, can effectively reduce the downtime failure rate of the energy storage system in the prefabricated energy storage compartment and improve the reliability of the energy storage system.

[0024] Furthermore, since the liquid needs to accumulate to the height of the detection end 33a to trigger the detection, the alarm value for the amount of leakage can be adjusted by adjusting the installation position of the detection mechanism 30 relative to the partition structure 20, thereby adjusting the height of the detection end 33a and correspondingly adjusting the amount of leakage. This allows for the identification of different degrees of leakage and also helps to avoid the problem of excessive shutdown caused by the water-immersed rope being too sensitive in the prior art.

[0025] like Figure 5As shown, the partition structure 20 of this embodiment includes a first main body 21 and a second main body 22. The first main body 21 is disposed at the bottom of the drainage cavity 11 and has an annular structure surrounding the drain outlet 121. A water passage hole 211 is provided on the side wall of the first main body 21. The second main body 22 is disposed on the outer periphery of the first main body 21 and above the water passage hole 211. The detection mechanism 30 is connected to the second main body 22. This configuration allows for partitioning of the drainage cavity 11 via the first main body 21 and provides mounting support for the detection mechanism 30 via the second main body 22. Optionally, the detection mechanism 30 can be suspended within the drainage cavity 11 via the partition structure 20 to ensure that the detection end 33a of the detection mechanism 30 does not directly contact the bottom wall of the drainage cavity 11, thereby reducing the risk of false alarms from the detection mechanism 30.

[0026] Furthermore, in some embodiments, the first main body 21 may be provided with a plurality of water passage holes 211, which are arranged at intervals along the circumference of the first main body 21 and are arranged at the same height as each other. By providing a plurality of water passage holes 211, the rate at which the water in the water inlet area 11a flows into the drainage area can be ensured, so as to realize the rapid drainage function of the leakage detection device 100.

[0027] like Figure 2 and Figure 3 as well as Figure 7 and Figure 8 As shown, the detection mechanism 30 of this embodiment includes a connecting block 31 and a detection element 33. One end of the connecting block 31 is disposed on the second main body 22, and the other end protrudes from the outer edge of the second main body 22 and is provided with a mounting hole 311. The detection element 33 passes through the mounting hole 311 and protrudes from the bottom side of the connecting block 31. Two detection probes 331 are spaced apart on the side of the detection element 33 facing the bottom wall of the drainage cavity 11 to form a detection end 33a. The bottom ends of the two detection probes 331 are located on the same horizontal plane.

[0028] The connecting block 31 serves as the mounting carrier for the detection element 33. One end of the connecting block is connected to the second main body 22, while the other end protrudes outward relative to the second main body 22, allowing the detection element 33 to be suspended in the central area of ​​the water inlet zone 11a, ensuring sufficient contact between the detection element 33 and the liquid flowing into the water inlet zone 11a. The detection element 33 is fixed via the mounting hole 311. Two detection probes 331 are spaced apart on the side of the detection element 33 facing the bottom wall of the drain cavity 11 to form a detection end 33a. The bottom ends of the two detection probes 331 are located on the same horizontal plane, which helps to ensure the accuracy of the detected liquid level height L2. Furthermore, when the liquid level rises to contact the two probes, the conductivity of water can be used to form a detection circuit, triggering a conduction signal on the detection element 33. Optionally, in a feasible embodiment, the inner wall of the mounting hole 311 is provided with an internal thread, and the outer wall of the detection element 33 is provided with an external thread, thereby allowing the detection element 33 to be threadedly connected to the mounting hole 311 for quick assembly and disassembly of the detection element 33. Furthermore, when the detection element 33 is assembled onto the connecting block 31, a partial structure at the top of the detection element 33 may protrude from the top side of the connecting block 31, and a sealing element may be provided between it and the top surface of the connecting block 31. This sealing element may be, but is not limited to, a sealing gasket arranged around the circumference of the connecting block 31, thereby improving the tightness of the fit between the detection element 33 and the connecting block 31.

[0029] Of course, the technical solution of the present invention is not limited to this. In other embodiments, the shortest distance in the vertical direction between the second main body 22 and the bottom of the drainage cavity 11 is adjustable, thereby changing the height position of the detection mechanism 30 provided on the second main body 22, and thus adjusting the height of the detection end 33a to correspondingly adjust the alarm value of the leakage. Optionally, in some embodiments, the length of the first main body 21 in the vertical direction can be changed to adjust the distance between the second main body 22 and the bottom of the drainage cavity 11; or, the first main body 21 and the second main body 22 can be detachably connected, and the distance between the second main body 22 and the bottom of the drainage cavity 11 can be adjusted by changing the connection position of the second main body 22 and the first main body 21 in the vertical direction. Specific implementation methods can be set according to actual needs and are not limited here.

[0030] like Figure 4As shown, in this embodiment of the invention, the connecting block 31 and the second main body 22 are arranged vertically, and at least one gasket 32 ​​is provided between the connecting block 31 and the second main body 22. The connecting block 31 has a first connecting hole 312, and the gasket 32 ​​has a second connecting hole. The leakage detection device 100 also includes a fastener 50, which passes through the first connecting hole 312 and at least one second connecting hole in sequence and is installed on the second main body 22. The height of the detection element 33 can be adjusted by increasing or decreasing the number of gaskets 32 or by replacing gaskets 32 with those of different thicknesses, so as to adjust the height position L2 of the detection end 33a according to actual detection needs, which is beneficial to improving practicality.

[0031] like Figure 3 As shown, the side wall of the first main body 21 in this embodiment of the invention is also provided with a water passage gap 212. The vertical distance from the water passage gap 212 to the bottom of the drainage chamber 11 is less than the vertical distance between the water passage hole 211 and the bottom of the drainage chamber 11. With this configuration, the water passage gap 212 can serve as an auxiliary drainage channel, enabling slow drainage when the liquid level in the water inlet zone 11a is low, thus preventing liquid from stagnating in the water inlet zone 11a for a long time.

[0032] like Figure 5 As shown, the second main body 22 of this embodiment of the invention is provided with a plurality of grooves 221 spaced apart in the circumferential direction, and the plurality of grooves 221 are symmetrically arranged about the center of the partition structure 20. The grooves 221 can cooperate with installation tools or positioning structures to ensure that the partition structure 20 and the detection mechanism 30 are installed in the correct position. By symmetrically arranging the plurality of grooves 221 about the center of the partition structure 20, the partition structure 20 can be quickly installed and fixed when rotated to different positions, thus combining error prevention and installation convenience.

[0033] like Figure 1 and Figure 2 As shown, the submerged shell 10 of this embodiment includes a bottom plate 12 and multiple side plates 13. The bottom plate 12 is provided with a drain outlet 121. The multiple side plates 13 are arranged sequentially along the circumference of the bottom plate 12 and together with the bottom plate 12 form the drain outlet 121. Each side plate 13 has a guide surface 131 on the side facing the bottom plate 12, which can guide liquid downward into the water inlet area 11a. Optionally, in a feasible embodiment, the top surface of the bottom 200 can be inclined at a certain angle, and the value of the inclination angle is in the range of 40°~70°. This setting can ensure that the space occupied by the side plates 13 is small, and the guide surface 131 can be used to guide the liquid to flow to the bottom of the water inlet area 11a and accumulate in an orderly manner, optimizing the liquid flow path and facilitating the detection of the liquid in the water inlet area 11a by the detection element 33.

[0034] In some embodiments, such as Figure 9As shown, the water leakage detection device 100 of this embodiment further includes a control component 60 and an alarm component. The control component 60 is signal-connected to the alarm component and the detection mechanism 30. When the detection probe 331 of the detection element 33 comes into contact with the leaking liquid, it can send a leakage signal to the leakage detection board 40. The leakage detection board 40 sends the leakage signal back to the control component 60, which can then control the alarm component to sound an alarm and simultaneously take corresponding shutdown measures.

[0035] The present invention also proposes an energy storage prefabricated cabin, which includes a leakage detection device 100. The specific structure of the leakage detection device 100 is as described in the above embodiments. Since the energy storage prefabricated cabin adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0036] like Figure 10 As shown, the prefabricated energy storage compartment of this embodiment has at least one drain outlet 210 around its perimeter at the bottom 200, and the top surface of the bottom 200 is inclined downwards from its center to the perimeter. This allows the top surface of the bottom 200 to be inclined with a higher center and lower perimeter, so that gravity causes any leaks within the compartment to flow towards the perimeter, ensuring that leaks naturally flow down to the drain outlet 210. Optionally, in a feasible embodiment, the top surface of the bottom 200 can be inclined at a certain angle, with the angle ranging from 1° to 10°.

[0037] The working process of this invention is as follows: When abnormal water leakage occurs in the prefabricated energy storage compartment, the leaked liquid can automatically flow to the drain outlet 210 around the bottom 200 of the compartment and enter the water inlet area 11a in the drainage chamber 11 of the water leakage detection device 100 located at the drain outlet 210, causing the liquid level in the water inlet area 11a to gradually rise until the detection mechanism 30 is triggered. Then, the liquid level in the water inlet area 11a can continue to rise until it reaches the water passage 211, so that it can enter the water outlet area 11b through the water passage 211 and be quickly discharged through the drain outlet 121 of the water outlet area 11b. Thus, the functions of drainage and leakage detection can be realized simultaneously, which helps to reduce the risk of false alarms in leakage detection and reduce the blind spot of leakage detection.

[0038] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A water leakage detection device applied to a water outlet of an energy storage prefabricated cabin, characterized in that, The leakage detection device includes: A submerged housing is provided at the drain outlet, the submerged housing having a drainage cavity communicating with the drain outlet, and a drainage outlet being provided at the bottom of the drainage cavity; A partition structure protrudes from the bottom of the drainage cavity and is arranged circumferentially around the drain outlet to divide the drainage cavity into an inlet area and an outlet area. The partition structure has a water passage hole that penetrates the partition structure and communicates with both the inlet and outlet areas. The water passage hole is spaced apart from the bottom of the drainage cavity, and the shortest vertical distance between the water passage hole and the bottom of the drainage cavity is L1. The detection mechanism is located in the water inlet area and has a detection end spaced apart from the bottom of the drain cavity. The shortest vertical distance between the detection end and the bottom of the drain cavity is L2, and L2 < L1.

2. The water leak detection apparatus of claim 1, wherein The partition structure includes: A first main body is disposed at the bottom of the drainage cavity and has an annular structure surrounding the drainage outlet. The sidewall of the first main body is provided with the water passage hole. The second main body is located on the outer periphery of the first main body and above the water passage hole, and the detection mechanism is connected to the second main body.

3. The water leak detection apparatus of claim 2, wherein The testing institutions include: A connecting block, one end of which is disposed on the second main body and arranged vertically with the second main body, and the other end of which protrudes from the outer edge of the second main body and has a mounting hole; at least one gasket is provided between the connecting block and the second main body; and The detection element passes through the mounting hole and protrudes from the bottom side of the connecting block. Two detection probes are spaced apart on the side of the detection element facing the bottom wall of the drainage cavity to form the detection end. The bottom ends of the two detection probes are located on the same horizontal plane.

4. The water leak detection apparatus of claim 2, wherein The shortest vertical distance between the second main body and the bottom of the drainage cavity is adjustable.

5. The water leak detection apparatus of claim 2, wherein The side wall of the first main body is also provided with a water passage gap, and the shortest distance in the vertical direction between the water passage gap and the bottom of the drainage cavity is less than the shortest distance in the vertical direction between the water passage hole and the bottom of the drainage cavity.

6. The water leak detection apparatus of claim 2, wherein The second main body has a plurality of grooves spaced apart in the circumferential direction, and the plurality of grooves are arranged symmetrically about the center of the partition structure.

7. The leakage detection device according to any one of claims 1 to 6, characterized in that, The submerged shell includes: A base plate, wherein the base plate is provided with the drainage outlet; and Multiple side plates are arranged sequentially along the circumference of the base plate and together with the base plate to form the drainage cavity. Each side plate has a guide surface on the side facing the base plate that can guide liquid downward into the water inlet area.

8. The leakage detection device according to any one of claims 1 to 6, characterized in that, The leakage detection device also includes a control component and an alarm component, wherein the control component is signal-connected to the alarm component and the detection mechanism.

9. The leakage detection device according to any one of claims 1 to 6, wherein the top side of the drainage chamber is provided through and communicates with the drain outlet, wherein, The detection mechanism is housed within the drainage cavity; or, at least a portion of the detection mechanism protrudes from the top side of the drainage cavity.

10. A prefabricated energy storage module, characterized in that, The device includes a leakage detection device according to any one of claims 1 to 9, wherein at least one drain outlet is provided around the periphery of the bottom of the energy storage prefabricated compartment, and the top surface of the bottom of the compartment is inclined downward from its center to the periphery, and at least one drain outlet is provided with the leakage detection device.

Images