Fan explosion venting valve

Abstract

The utility model discloses a fan explosion venting valve which comprises an installation seat, the installation seat is provided with a ventilation opening, one side of the installation seat is connected with a fan and a telescopic mechanism, the fan is used for achieving gas flow, the other side of the installation seat is provided with a sealing cover plate, and the sealing cover plate is used for sealing the ventilation opening. And the moving end of the telescopic mechanism penetrates through and extends to the other side of the mounting base to be connected with a sealing cover plate, an air release opening is formed in the sealing cover plate, and the air release opening is covered with a rupture disk. The explosion venting valve of the fan has the advantages that the fan, the pressure relief opening and the sealing cover plate are integrated, and the explosion venting valve of the fan is compact in structure, small in occupied space, high in applicability and capable of being matched with an energy storage device with the small space. The device is integrated, so that the equipment cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage ventilation, and particularly relates to a fan explosion relief valve. Background Art

[0002] Lithium batteries are prone to spontaneous combustion, and once spontaneous combustion occurs, it will quickly trigger an explosion. Therefore, a comprehensive energy storage explosion relief ventilation system must be implemented during daily operation and accidental events. This system needs to have the ability to quickly exchange air to prevent the accumulation of combustible gases leading to an explosion. The energy storage explosion relief fan is an important part of the ventilation system, including a ventilation electric louver and an exhaust fan. It, together with a detector and an alarm host, constitutes the ventilation system of an energy storage container, aiming to prevent the accumulation of combustible gases and reach the explosion concentration, reducing the explosion risk. After receiving the alarm signal sent by the gas detector, the alarm host will send a signal to the ventilation system. When the concentration of combustible gases is higher than the threshold, the exhaust fan, electric louver, etc. will open to discharge the combustible gases in the energy storage box. When the concentration of combustible gases drops below the threshold, the alarm host will receive the signal and automatically close the ventilation system. However, the current ventilation system is applicable to energy storage devices with large volumes and large accommodation spaces such as energy storage containers, and cannot be applied to energy storage cabinets outdoors and other energy storage devices with small spaces and small volumes. Therefore, there is an urgent need for an exhaust explosion relief device applicable to small-space energy storage devices. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a fan explosion relief valve, which integrates a fan, a pressure relief port and a sealing cover plate, has a compact structure, occupies a small space, has high applicability, and can be adapted to energy storage devices with small spaces. With an integrated setting, the equipment cost can also be reduced.

[0004] The purpose of the utility model is achieved by the following technical measures: a fan explosion relief valve includes a mounting seat, the mounting seat is provided with a ventilation port, one side of the mounting seat is connected with a fan and a telescopic mechanism, the fan is used to realize gas flow, the other side of the mounting seat is provided with a sealing cover plate, the sealing cover plate is used to seal the ventilation port, the moving end of the telescopic mechanism penetrates through and extends to the other side of the mounting seat and is connected with the sealing cover plate, the sealing cover plate is provided with a gas relief port, and the gas relief port is covered with a bursting disc.

[0005] Further, the ventilation port is covered with a dust-proof net.

[0006] Further, the telescopic mechanism is an electric push rod.

[0007] Further, it further includes a guiding mechanism, the guiding mechanism includes a guiding column, one end of the guiding column is connected with the sealing cover plate, and the other end of the guiding column penetrates through and extends to the other side of the mounting seat.

[0008] Further, the opposite end of the guiding column connected to the sealing cover plate is a free end, and a limiting block is connected to the free end.

[0009] Further, the fan is connected to the mounting seat through a mounting assembly, and the telescopic mechanism is connected to the mounting seat through a fixing assembly.

[0010] Further, sealing rings are respectively arranged on both sides of the mounting seat.

[0011] Further, the sealing cover plate is provided with a labyrinth seal.

[0012] Further, there is more than one air release port.

[0013] Further, the bursting disc is an aluminum thin sheet.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present disclosure integrates a fan, a pressure relief port and a sealing cover plate into one body, with a compact structure, small occupied space, high applicability, and can be adapted to energy storage devices with small space. The integrated setting of the present disclosure can also reduce the equipment cost.

[0015] The following will describe the present utility model in detail with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the structural schematic diagram of the present utility model Figure 1 .

[0017] Figure 2 is the structural schematic diagram of the present utility model Figure 2 .

[0018] Figure 3 is the structural schematic diagram of the sealing cover plate.

[0019] Figure 4 is the structural schematic diagram of the present utility model Figure 3 .

[0020] Figure 5 is the structural schematic diagram of the labyrinth seal.

[0021] Figure 6 is the structural schematic diagram of the present utility model Figure 4 .

[0022] Figure 7 is the structural schematic diagram of the present utility model Figure 5 .

[0023] Wherein, 1. Mounting seat, 2. Fan, 3. Telescopic mechanism, 4. Dust filter, 5. Guiding column, 6. Isolation column, 7. Fixed seat, 8. Bursting disc, 9. Sealing cover plate, 10. Sealing ring, 11. Labyrinth seal. Detailed implementation mode

[0024] As shown in Figures 1 to 6 , a blast relief valve for a fan includes a mounting base 1. An installation hole corresponding to the mounting base 1 is provided on the energy storage device, and the mounting base 1 is connected to the energy storage device through the installation hole. The mounting base 1 is provided with a ventilation opening. One side of the mounting base 1 is connected with a fan 2 and a telescopic mechanism 3. The fan 2 is used to realize gas flow. The other side of the mounting base 1 is provided with a sealing cover plate 9. The sealing cover plate 9 is used to seal the ventilation opening. The moving end of the telescopic mechanism 3 penetrates through and extends to the other side of the mounting base 1 and is connected to the sealing cover plate 9. Through the expansion and contraction of the moving end of the telescopic mechanism 3, the movement of the sealing cover plate 9 is driven, so as to realize the sealing or unsealing of the ventilation opening by the sealing cover plate 9. A gas release port is provided on the sealing cover plate 9, and the gas release port is covered with a rupture disk 8. The rupture disk 8 is a pressure-opening structure and can burst under a set pressure to release the pressure. The fan 2 and the telescopic mechanism 3 of the present disclosure can be controlled by the control system of the energy storage device. Of course, the fan 2 and the telescopic mechanism 3 in the present disclosure can also be controlled by other external control devices. If it is controlled by the energy storage device control system, when the detector set in the energy storage device alarms, the control system can control the telescopic mechanism 3 to extend the moving end, and then extend the sealing cover plate 9, so that the sealing cover plate 9 is away from the ventilation opening, control the fan 2 to start, realize the gas circulation in the energy storage device, and discharge the combustible gas from the energy storage device. When the concentration of combustible gas in the energy storage device meets the requirements, the control system can control the moving end of the telescopic mechanism 3 to retract, and then retract the sealing cover plate 9, so that the sealing cover plate 9 seals the ventilation opening, realizing the sealing of the energy storage device. If the internal pressure of the energy storage device increases rapidly and the sealing cover plate 9 and the fan 2 are not opened, when the internal pressure of the energy storage device increases to the set pressure of the rupture disk 8, the internal pressure will break through the rupture disk 8 to release the pressure.

[0025] The ventilation opening is covered with a dust-proof net 4. The dust-proof net 4 can be welded or connected to one side of the mounting base 1 by screws. Preferably, the dust-proof net 4 is arranged on the side of the mounting base 1 away from the fan 2. The dust-proof net 4 can prevent insects and the like from entering the energy storage device through the ventilation opening.

[0026] The telescopic mechanism 3 is an electric push rod.

[0027] It further includes a guiding mechanism. The guiding mechanism includes a guiding column 5. One end of the guiding column 5 is connected to the sealing cover plate 9, and the other end of the guiding column 5 penetrates through and extends to the other side of the mounting base 1. When the telescopic mechanism 3 drives the sealing cover plate 9 to move, the sealing cover plate 9 drives the guiding column 5 to move. Through the guiding column 5 for guiding and limiting, it is used to stabilize the moving direction of the telescopic mechanism 3 and avoid deviation.

[0028] Further preferably, the opposite end of the guiding column 5 to the end connected to the sealing cover plate 9 is a free end, and a limiting block is connected to the free end. Through the limiting effect of the limiting block, the moving distance of the telescopic mechanism 3 is limited, and further the moving distance of the sealing cover plate 9 is limited.

[0029] The blower 2 is connected to the mounting seat 1 through a mounting component, and the telescopic mechanism 3 is connected to the mounting seat 1 through a fixing component. Specifically, the mounting component includes an isolation column 6. One end of the isolation column 6 is connected to the mounting seat 1, and the other end of the isolation column 6 is connected to the blower 2. Further, a plurality of isolation columns 6 are provided. The fixing component includes a fixing seat 7. The fixing seat 7 is connected to the mounting seat 1, and the telescopic mechanism 3 is arranged on the fixing seat 7.

[0030] Sealing rings 10 are respectively arranged on both sides of the mounting seat 1. When the mounting seat 1 is mounted on the energy storage device, the sealing ring 10 on one side of the mounting seat 1 is used to achieve the seal between the energy storage device and the mounting seat 1. The sealing ring 10 on the other side of the mounting seat 1 is used to achieve the seal between the mounting seat 1 and the sealing cover plate 9. Further preferably, the sealing ring 10 closer to the blower 2 is used to achieve the seal between the energy storage device and the mounting seat 1. Specifically, during installation, the mounting seat 1 is arranged inside the energy storage device, the blower 2 is placed outside the energy storage device, and the mounting seat 1 is connected to the energy storage device to achieve the seal of the sealing ring 10 between the energy storage device and the mounting seat 1.

[0031] The sealing cover plate 9 is provided with a labyrinth seal 11. When the sealing cover plate 9 seals the ventilation opening, the labyrinth seal 11 can further improve the sealing performance between the sealing cover plate 9 and the mounting seat 1.

[0032] There is more than one air release port. Further preferably, the air release ports are oppositely arranged within the ventilation cross-section of the ventilation opening, facilitating the entry of gas into the ventilation opening through the air release ports.

[0033] The bursting disc 8 is an aluminum thin sheet. The present disclosure does not limit the thickness of the aluminum thin sheet, and an aluminum thin sheet with a suitable thickness can be selected according to the bursting pressure requirement.

[0034] The present disclosure also does not limit the positional relationship between the blower 2 and the telescopic mechanism 3. In the present disclosure, there are at least two positional relationships between the blower 2 and the telescopic mechanism 3. The first one is as shown in the attached Figure 1 figure, the telescopic mechanism 3 is arranged between the blower 2 and the mounting seat 1. The blower 2 is supported by the isolation column 6, so that a receiving space is formed between the blower 2 and the mounting seat 1, and the fixing seat 7 and the telescopic mechanism 3 are arranged in the receiving space. Further preferably, the blower 2, the telescopic mechanism 3 and the ventilation opening are coaxially arranged. The second one is as shown in Figures 6 - 7As shown, the fan 2 and the telescopic mechanism 3 are arranged side by side, that is, the telescopic mechanism 3 is arranged on one side of the fan 2. The fan 2 is connected to the mounting base 1 through the mounting assembly. The fixing base 7 can be arranged on one side of the mounting assembly, and the telescopic mechanism 3 is arranged on the fixing base. Further, the present disclosure does not limit the number of the telescopic mechanisms 3 either, and one or more telescopic mechanisms 3 can be arranged according to requirements.

[0035] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0036] Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fan explosion relief valve, characterized in that: It includes a mounting seat, which is provided with a vent, one side of the mounting seat is connected to a fan and a telescopic mechanism, the fan is used to achieve gas flow, the other side of the mounting seat is provided with a sealing cover plate, the sealing cover plate is used to seal the vent, the moving end of the telescopic mechanism passes through and extends to the other side of the mounting seat and is connected to the sealing cover plate, the sealing cover plate is provided with an air leak port, and the air leak port is covered with a bursting piece.

2. The fan explosion relief valve according to claim 1, characterized in that: The vent is covered with a dustproof net.

3. The fan explosion relief valve according to claim 1, characterized in that: The telescopic mechanism is an electric push rod.

4. The fan explosion relief valve according to claim 1, characterized in that: It also includes a guiding mechanism, which includes a guiding column, one end of which is connected to the sealing cover plate, and the other end of which penetrates and extends to the other side of the mounting seat.

5. The fan explosion relief valve according to claim 4, characterized in that: The end opposite to the end of the guide column connected to the sealing cover plate is a free end, and the free end is connected to a limiting block.

6. The fan explosion relief valve according to claim 1, characterized in that: The fan is connected to the mounting seat via a mounting assembly, and the telescopic mechanism is connected to the mounting seat via a fixing assembly.

7. The fan explosion relief valve according to claim 1, characterized in that: Sealing rings are respectively arranged on both sides of the mounting seat.

8. The fan explosion relief valve according to claim 1, characterized in that: The sealing cover plate is provided with a labyrinth seal.

9. The fan explosion relief valve according to claim 1, characterized in that: There is more than one air vent.

10. The fan explosion relief valve according to claim 1, characterized in that: The bursting disc is an aluminum sheet.

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