Leaked liquid collecting device of flow battery stack

Abstract

The utility model discloses a leaked liquid collecting device of a flow battery stack, which comprises a liquid dropping disc, a liquid collecting pit arranged at the center of the liquid dropping disc, a connector fixedly connected to the bottom of the liquid collecting pit, a solenoid valve in threaded connection with the connector, a hose fixedly connected to the output end of the solenoid valve, and a liquid collecting tank connected to the other end of the hose. The leaked liquid collecting device of the flow battery stack further comprises a stack support, the stack support is a cuboid frame, the top of the stack support comprises a pair of first rods parallel to each other and a pair of second rods parallel to each other, and the first rods and the second rods are perpendicular to each other; a pair of rectangular rods is arranged between a pair of parallel first rods, the rectangular rods are perpendicular to the first rods, and two L-shaped supporting rods are oppositely arranged at the two ends of the bottoms of the first rods. And the liquid dropping tray is placed on the L-shaped supporting rod. According to the utility model, the leaked liquid of the galvanic pile is effectively collected through the liquid dropping disc.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid flow batteries and relates to a leakage collection device for a liquid flow battery stack. Background Art

[0002] The liquid flow battery energy storage system is a new type of safe electrochemical energy storage system with the characteristics of high capacity, wide application field (environment), and long cycle life. It is a new type of battery.

[0003] The battery stack is the core component of the flow battery, which is made of multiple single cells stacked and fixed by a press. In actual use, the battery stack of the flow battery sometimes has the problem of electrolyte leakage, which can cause harm to the workers, corrode the equipment and reduce the service life of the equipment, and cause harm to the environment. Therefore, it is necessary to propose a leakage collection device for the flow battery stack to effectively collect the leakage of the battery stack. Utility Model Content

[0004] The utility model aims to provide a leakage collection device for a liquid flow battery stack, which has the characteristics of simple device and high leakage collection efficiency.

[0005] The technical solution adopted by the utility model is:

[0006] The leakage collection device of the flow battery stack includes a drip tray, a liquid collection pit is arranged in the center of the drip tray, a joint is fixedly connected to the bottom of the liquid collection pit, a solenoid valve is threadedly connected to the joint, a hose is fixedly connected to the output end of the solenoid valve, and the other end of the hose is connected to a liquid collection tank;

[0007] It also includes a battery stack support, which is a rectangular parallelepiped frame, and the top of the battery stack support includes a pair of mutually parallel first rods and a pair of mutually parallel second rods, the first rods and the second rods are perpendicular to each other; a pair of rectangular rods are arranged between the pair of mutually parallel first rods, the rectangular rods are perpendicular to the first rods, and two L-shaped support rods are arranged opposite to each other at both ends of the bottom of the first rods;

[0008] The drip tray is placed on an L-shaped support rod.

[0009] The utility model is also characterized in that:

[0010] The leakage collection device of the flow battery stack has a liquid level alarm installed inside the liquid collecting tank; the liquid collecting tank is located at the bottom of the drip tray.

[0011] The leakage collection device of the liquid flow battery stack has a drip tray which is a rectangular parallelepiped, the length of the drip tray is greater than the length of the stack, and the width of the drip tray is greater than the width of the stack; guardrails are arranged at the four edges of the drip tray; and a plurality of flow channel grooves which are staggered horizontally and vertically are arranged on the inner surface of the drip tray.

[0012] The leakage collection device of the flow battery stack has a fence height of 40-60mm; the flow channel is inclined toward the liquid collection pit, and the slope is 2‰-4‰.

[0013] The leakage collection device of the flow battery stack has a float switch installed near the enclosure on the drip tray.

[0014] The beneficial effects of the utility model are:

[0015] The utility model can effectively collect leakage of the flow battery stack through the mutual cooperation of the drip plate, the flow channel groove, the solenoid valve, the float switch, the hose and the liquid collecting tank. It has the characteristics of simple structure, easy installation and low cost. It can realize the unified treatment of the leakage of the battery stack, avoid polluting the environment and corroding the equipment, and avoid causing physical harm to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the drip tray of the utility model;

[0017] Figure 2 This is the front view of the leakage collection device of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the battery stack support of the utility model;

[0019] Figure 4 It is a top view of the leakage collection device of the utility model.

[0020] In the figure, 1. drip tray, 2. collection pit, 3. connector, 4. solenoid valve, 5. hose, 6. collection tank, 7. battery stack bracket, 8. first rod, 9. second rod, 10. rectangular rod, 11. L-shaped support rod, 12. enclosure, 13. flow channel, 14. float switch. DETAILED DESCRIPTION

[0021] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0022] A leakage collection device for a flow battery stack includes a drip tray 1, such as Figure 1 As shown, a liquid collecting pit 2 is provided at the center of the drip tray 1. The drip tray 1 is a rectangular parallelepiped. The length of the drip tray 1 is greater than the length of the battery stack, and the width of the drip tray 1 is greater than the width of the battery stack, so as to ensure that the leakage of the battery stack can be collected in the drip tray 1; the four edges of the drip tray 1 are provided with enclosures 12, and the height of the enclosure 12 is 40-60mm. The function of the enclosure 12 is to prevent the leakage of the battery stack in the drip tray 1 from leaking out.

[0023] The inner surface of the drip tray 1 is provided with a plurality of flow grooves 13 which are staggered horizontally and vertically, and the flow grooves 13 have the function of guiding the leakage of the battery stack; the flow grooves 13 are inclined toward the liquid collecting pit 2, and the inclination slope is 2‰-4‰. The leakage of the battery stack can flow more quickly to the liquid collecting pit 2 at the center of the drip tray 1 in the inclined flow grooves 13.

[0024] A float switch 14 is provided near the enclosure 12 of the drip tray 1. Figure 1 and Figure 4 As shown, the float switch 14 controls the opening and closing of the solenoid valve 4. When the leakage of the battery stack in the drip tray 1 is at a high liquid level, the float switch 14 controls the solenoid valve 4 to open, and the leakage of the battery stack flows to the hose 5 through the solenoid valve 4. When the leakage of the battery stack in the drip tray 1 is at a low liquid level, the float switch 14 controls the solenoid valve 4 to close, and the leakage of the battery stack gathers in the drip tray 1.

[0025] like Figure 2 As shown, a connector 3 is fixedly connected to the bottom of the liquid collecting pit 2, a solenoid valve 4 is threadedly connected to the connector 3, a hose 5 is fixedly connected to the output end of the solenoid valve 4, and the other end of the hose 5 is connected to a liquid collecting tank 6; a liquid level alarm is installed inside the liquid collecting tank 6; the liquid collecting tank 6 is located at the bottom of the drip tray 1, and the leakage of the battery stack is collected into the liquid collecting tank 6 along the hose 5. When the liquid level of the leakage of the battery stack in the liquid collecting tank 6 is too high, the liquid level alarm will sound an alarm to remind the staff to replace the liquid collecting tank 6.

[0026] The leakage collection device of the flow battery stack also includes a stack support 7, such as Figure 3 As shown, the stack support 7 is a rectangular parallelepiped frame, and the top of the stack support 7 includes a pair of mutually parallel first rods 8 and a pair of mutually parallel second rods 9, and the first rods 8 and the second rods 9 are perpendicular to each other; a pair of rectangular rods 10 are arranged between the pair of mutually parallel first rods 8, and the rectangular rods 10 are used to support the stack, and the rectangular rods 10 are perpendicular to the first rods 8, and two L-shaped support rods 11 are arranged opposite to each other at both ends of the bottom of the first rod 8;

[0027] The drip tray 1 is placed on an L-shaped support rod 11. Figure 2 As shown, the L-shaped support rod 11 supports the drip tray 1 .

[0028] The working principle is:

[0029] When the utility model is used, the battery stack is placed on the rectangular rod 10, and the drip tray 1 is placed on the L-shaped support rod 11. When the battery stack leaks, the leaked liquid drips into the drip tray 1 on the L-shaped support rod 11. When the leaked liquid of the battery stack gathers to a high liquid level in the drip tray 1, the float switch 14 controls the solenoid valve 4 to open, and the leaked liquid of the battery stack flows to the hose 5 through the solenoid valve 4, and then flows along the hose 5 to the liquid collecting tank 6, so as to achieve the purpose of collecting the leaked liquid of the battery stack. When the liquid level of the leaked liquid of the battery stack in the liquid collecting tank 6 is too high, the liquid level alarm will sound an alarm to remind the staff to replace the liquid collecting tank 6. The device has low cost, simple structure, and is easy to install, and can achieve unified treatment of battery stack leakage.

[0030] Example 1

[0031] A leakage collection device for a flow battery stack includes a drip tray 1, such as Figure 1 As shown, a liquid collecting pit 2 is provided in the center of the drip tray 1. Figure 2 As shown, a joint 3 is fixedly connected to the bottom of the liquid collection pit 2, a solenoid valve 4 is threadedly connected to the joint 3, a hose 5 is fixedly connected to the output end of the solenoid valve 4, and the other end of the hose 5 is connected to a liquid collection tank 6; a liquid level alarm is installed inside the liquid collection tank 6; the liquid collection tank 6 is located at the bottom of the drip tray 1;

[0032] The leakage collection device of the flow battery stack also includes a stack support 7, such as Figure 3 As shown, the stack support 7 is a rectangular parallelepiped frame, and the top of the stack support 7 includes a pair of mutually parallel first rods 8 and a pair of mutually parallel second rods 9, and the first rods 8 and the second rods 9 are perpendicular to each other; a pair of rectangular rods 10 are arranged between the pair of mutually parallel first rods 8, and the rectangular rods 10 are perpendicular to the first rods 8, and two L-shaped support rods 11 are arranged opposite to each other at both ends of the bottom of the first rod 8;

[0033] The drip tray 1 is placed on an L-shaped support rod 11. Figure 2 shown.

[0034] Example 2

[0035] A leakage collection device for a flow battery stack includes a drip tray 1, such as Figure 1 As shown, a liquid collecting pit 2 is provided in the center of the drip tray 1. Figure 2 As shown, a joint 3 is fixedly connected to the bottom of the liquid collection pit 2, a solenoid valve 4 is threadedly connected to the joint 3, a hose 5 is fixedly connected to the output end of the solenoid valve 4, and the other end of the hose 5 is connected to a liquid collection tank 6;

[0036] The leakage collection device of the flow battery stack also includes a stack support 7, such as Figure 3As shown, the stack support 7 is a rectangular parallelepiped frame, and the top of the stack support 7 includes a pair of mutually parallel first rods 8 and a pair of mutually parallel second rods 9, and the first rods 8 and the second rods 9 are perpendicular to each other; a pair of rectangular rods 10 are arranged between the pair of mutually parallel first rods 8, and the rectangular rods 10 are perpendicular to the first rods 8, and two L-shaped support rods 11 are arranged opposite to each other at both ends of the bottom of the first rod 8;

[0037] The drip tray 1 is placed on an L-shaped support rod 11. Figure 2 shown.

[0038] like Figure 1 As shown, the drip tray 1 is a rectangular parallelepiped, the length of the drip tray 1 is greater than the length of the battery stack, and the width of the drip tray 1 is greater than the width of the battery stack; the four edges of the drip tray 1 are provided with enclosures 12; the inner surface of the drip tray 1 is provided with a plurality of horizontally and vertically staggered flow channel grooves 13.

[0039] Example 3

[0040] On the basis of Example 2, the height of the enclosure 12 is 40-60 mm; the flow channel 13 is inclined toward the liquid collection pit 2, and the slope is 2‰-4‰. A float switch 14 is provided near the enclosure 12 of the drip tray 1. Figure 1 and Figure 4 shown.

Claims

1. A leakage collection device for a flow battery stack, characterized in that: The invention comprises a drip tray (1), wherein a liquid collecting pit (2) is provided at the center of the drip tray (1), a joint (3) is fixedly connected to the bottom of the liquid collecting pit (2), a solenoid valve (4) is threadedly connected to the joint (3), a hose (5) is fixedly connected to the output end of the solenoid valve (4), and the other end of the hose (5) is connected to a liquid collecting tank (6); It also includes a battery stack support (7), the battery stack support (7) is a rectangular parallelepiped frame, the top of the battery stack support (7) includes a pair of mutually parallel first rods (8) and a pair of mutually parallel second rods (9), the first rods (8) and the second rods (9) are perpendicular to each other; a pair of rectangular rods (10) is provided between the pair of mutually parallel first rods (8), the rectangular rods (10) are perpendicular to the first rods (8), and two L-shaped support rods (11) are provided at two opposite ends of the bottom of the first rod (8); The drip tray (1) is placed on an L-shaped support rod (11).

2. The leakage collection device for a flow battery stack according to claim 1, characterized in that: A liquid level alarm is installed inside the liquid collecting tank (6); the liquid collecting tank (6) is located at the bottom of the drip tray (1).

3. The leakage collection device for a flow battery stack according to claim 1, characterized in that: The drip tray (1) is a rectangular parallelepiped, the length of the drip tray (1) is greater than the length of the battery stack, and the width of the drip tray (1) is greater than the width of the battery stack; four edges of the drip tray (1) are provided with enclosures (12); and the inner surface of the drip tray (1) is provided with a plurality of flow channel grooves (13) that are staggered horizontally and vertically.

4. The leakage collection device for a flow battery stack according to claim 3, characterized in that: The height of the enclosure (12) is 40-60 mm; the flow channel (13) is inclined toward the liquid collection pit (2), and the slope is 2‰-4‰.

5. The leakage collection device for a flow battery stack according to claim 3, characterized in that: The drip tray (1) is provided with a float switch (14) near the enclosure (12).

Images