Rain cover and energy storage fire extinguishing system

Abstract

The utility model discloses a rain cover and energy storage fire extinguishing system, including the rain cover body, the rain cover body includes the hollow rain cover casing, and the insect-proof subassembly of rain cover casing one end, the insect-proof subassembly includes: the fly net that turns around the inner side face of rain cover casing, the insect-proof net is used for controlling the air permeability in the hollow channel of the rainproof cover shell; the extrusion wheels are tangent to the insect-proof net, and the extrusion wheels can always apply pressure for fixing the insect-proof net to the two opposite sides of the insect-proof net. The insect-proof net fixed by the extrusion wheel and the mounting plate is arranged, so that the replacement efficiency of the insect-proof net is improved, and the elastic piece is arranged, so that the insect-proof net can change the air permeability of the ventilation pipeline according to the gas pressure in the ventilation pipeline, and the gas flowing rate is further controlled; therefore, balance is formed between blocking insects and improving the gas flow rate, and the air permeability is improved under the condition that the protection capability of the device is not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage fire fighting system technical field, concretely relates to a rain cover and energy storage fire fighting system. BACKGROUND

[0002] Energy storage fire fighting system refers to the fire safety system applied in energy storage facilities, and its purpose is to prevent, detect and control the fire or explosion accidents possibly occurring in the energy storage device. With the wide application of renewable energy and the increasing demand of power grid for energy storage, the safety problem of energy storage facilities becomes increasingly important. The energy storage facilities mainly include: fire detection system, automatic fire extinguishing system, isolation mechanism and monitoring and alarm system, etc. Among them, the automatic fire extinguishing system can start by itself after detecting the fire, and uses the gas with excellent insulation performance such as carbon dioxide to spray for 8-10 seconds to extinguish the fire, so that the pressure in the energy storage room where the energy storage facilities are placed increases suddenly, and the gas with increased volume is discharged through the mechanical fire relief valve arranged at the pressure relief port.

[0003] Among them, in order to protect the mechanical relief valve and rainwater from entering the energy storage room, a rain cover is arranged at the pressure relief port to block the rainwater. The rain cover is provided with an insect screen to block insects from entering the mechanical relief valve and the energy storage room to affect them. The existing insect screen is fixed at the end of the rain cover by bolts to prevent the gas from flowing and falling off. However, this fixing method is not convenient for cleaning and replacing the insect screen, reduces the working efficiency of cleaning the rain cover, and the mesh of the insect screen reduces the flow rate of the gas, so it is difficult to improve the air permeability while ensuring the protection ability. UTILITY MODEL CONTENTS

[0004] The utility model discloses a rain cover and energy storage fire fighting system to solve the problem that the existing energy storage fire fighting system rain cover is not convenient for cleaning and replacing the insect screen and the air permeability is poor, and the specific technical scheme is as follows:

[0005] A rain cover comprises a rain cover body, the rain cover body comprises a hollow rain cover shell and an insect prevention assembly arranged at one end of the rain cover shell, the insect prevention assembly comprises: an insect screen turned over around the inner side surface of the rain cover shell, which is used to control the air permeability in the hollow channel of the rain cover shell; and at least two extrusion wheels tangent to the insect screen, which can always apply a pressure for fixing the insect screen to the opposite sides of the insect screen.

[0006] Further, the insect prevention assembly further comprises a mounting plate rotationally connected to the inner side surface of the rain cover shell, and the extrusion wheels extrude the insect screen on the mounting plate to fix the insect screen. The middle region of the mounting plate forms a through hole allowing the gas inside the rain cover shell to flow, and the projection of the insect screen on the mounting plate completely covers the through hole.

[0007] Further, the rain cover body further comprises an elastic member arranged at one end of the mounting plate away from the turning point, the elastic member being capable of exerting a pulling force on the mounting plate away from the rain cover shell during the turning process, and the elastic member is detachably connected with the mounting plate.

[0008] Further, the deformation amount of the elastic member is proportional to the gas pressure inside the rain cover shell when the air permeability of the insect-proof net is fixed.

[0009] Further, the extrusion wheels are arranged at opposite sides of the mounting plate, and the axes of the extrusion wheels are parallel to each other and to the mounting plate, so that the insect-proof net can be separated from the mounting plate along the rolling direction of the extrusion wheels.

[0010] An energy storage fire extinguishing system comprises an energy storage room provided with a pressure relief port allowing gas flow, a mechanical fire relief valve arranged at the pressure relief port and capable of controlling the gas flow inside the energy storage room, and a rain cover for wrapping the mechanical fire relief valve and the pressure relief port.

[0011] From the above technical solution, the utility model has the following beneficial effects:

[0012] The utility model discloses a rain cover body, a mounting plate, an insect-proof net and an extrusion wheel, and the insect-proof net is fixed by the extrusion wheel and the mounting plate, the insect-proof net can be replaced efficiently, the air permeability of the air pipe can be changed according to the gas pressure inside the air pipe by the elastic member, the gas flow rate is controlled, and the balance between blocking insects and improving the gas flow rate is formed, and the air permeability is improved without affecting the protection capability. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model embodiment;

[0014] Figure 2 It is a structural schematic view of the utility model insect-proof assembly.

[0015] In the drawing: 1, rain cover body;11, rain cover shell;111, air pipe;12, insect-proof assembly;121, mounting plate;122, insect-proof net;123, extrusion wheel;13, elastic member. DETAILED DESCRIPTION

[0016] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] In the description of the embodiments of the utility model, it needs to be explained that the directions or position relations indicated by the terms "inner", "outer", "upper" and the like are based on the directions or position relations shown in the drawings, or the directions or position relations in which the utility model product is usually placed during use, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0018] Embodiment 1

[0019] As shown in Figure 1 and Figure 2 The utility model discloses a rain cover body 1, which comprises a hollow rain cover shell 11 and an insect prevention assembly 12 arranged at one end of the rain cover shell 11.

[0020] Specifically, the rain cover shell 11 is formed with a ventilation pipeline 111 in the middle to allow gas flow, and the insect prevention assembly 12 is bolted at one end of the rain cover shell 11 in contact with the outside to prevent insects from entering the ventilation pipeline 111.

[0021] Further, the insect prevention assembly 12 comprises an insect prevention net 122 turned around the inner side of the rain cover shell 11, which is used to control the air permeability in the hollow passage of the rain cover shell 11, and at least two extrusion wheels 123 tangent to the insect prevention net 122, which can always exert a pressure on the opposite sides of the insect prevention net 122 to fix the insect prevention net 122.

[0022] Specifically, the insect prevention net 122 is rotatably connected in the ventilation pipeline 111 of the rain cover shell 11, which is formed with regularly arranged grids with diameters determined according to the insects in the surrounding environment, and the grids can block a part of the gas flow to reduce the air permeability of the insect prevention net 122. When the insect prevention net 122 rotates around the ventilation pipeline 111, a part of the ventilation pipeline 111 is not blocked by the grids of the insect prevention net 122, thereby improving the air permeability of the ventilation pipeline 111. Secondly, the same side of the insect prevention net 122 is tangent to the radial outer surface of the extrusion wheel 123, so that the pressure exerted by the extrusion wheel 123 on the insect prevention net 122 is perpendicular to the insect prevention net 122, thereby enabling the insect prevention net 122 to remain relatively stationary under the pressure of the extrusion wheel 123. When the insect prevention net 122 is subjected to a pulling force perpendicular to the pressure, and the pulling force is greater than the frictional force on the insect prevention net 122, the insect prevention net 122 can form rolling friction with the extrusion wheel 123, thereby facilitating the separation of the insect prevention net 122 from the extrusion wheel 123, and facilitating the replacement and cleaning of the insect prevention net 122.

[0023] Further, the insect prevention assembly 12 further comprises a mounting plate 121 rotatably connected to the inner side of the rain cover shell 11, and an extrusion wheel 123 extruding the insect prevention net 122 on the mounting plate 121 for fixing the insect prevention net 122, and a through hole is formed in the middle region of the mounting plate 121 to allow the gas inside the air duct 111 to flow, and the projection of the insect prevention net 122 on the mounting plate 121 completely covers the through hole.

[0024] Specifically, the through hole of the mounting plate 121 completely covered by the insect prevention net 122 makes the gas inside the air duct 111 flow mainly resisted by the insect prevention net 122, and the mounting plate 121 drives the insect prevention net 122 to rotate around the inner side of the rain cover shell 11, so that the insect prevention net 122 can control the air permeability of the air duct 111 by rotating; secondly, the extrusion wheel 123 applies pressure to the edge of the insect prevention net 122 and the mounting plate 121, and the edge of the mounting plate 121 is rotatably connected to the rain cover shell 11, so that the extrusion wheel 123 and the mounting plate 121 fix the insect prevention net 122 by friction, and then the insect prevention net 122 can be separated from the extrusion wheel 123 and the mounting plate 121 by overcoming the friction, which is convenient for replacement and cleaning.

[0025] Further, the rain cover body 1 further comprises a resilient member 13 arranged at one end of the mounting plate 121 away from the turning point, which can apply a pulling force to the mounting plate 121 away from the rain cover shell 11 during the turning process, and the resilient member 13 is detachably connected to the mounting plate 121.

[0026] Specifically, the resilient member 13 is preferably an extension spring, and the mounting plate 121 drives one end of the insect prevention net 122 to move relative to the rain cover shell 11 by rotating to change the air permeability thereof, when the end of the insect prevention net 122 is away from the rain cover shell 11, the resilient member 13 is elongated to generate a contraction force, and the torque generated by the force is opposite to the torque for driving the insect prevention net 122, when the torque for driving the insect prevention net 122 is greater than the torque of the force on the insect prevention net 122, the end of the insect prevention net 122 continuously moves away from the rain cover shell 11, and when the torque for driving the insect prevention net 122 is less than the torque of the force on the insect prevention net 122, the end of the insect prevention net 122 gradually returns to the original position until the air duct 111 is fully covered, wherein the resilient member 13 is fixed to one end of the mounting plate 121 by hook connection, so that when the insect prevention net 122 is replaced, the resilient member 13 is separated from the mounting plate 121, and the mounting plate 121 is rotated again to avoid generating a force on the resilient member 13, thereby improving the control ability of the insect prevention net 122 on the air permeability of the air duct 111.

[0027] Further, the deformation amount of the resilient member 13 is proportional to the gas pressure inside the rain cover shell 11 when the air permeability of the insect prevention net 122 is fixed.

[0028] Specifically, the mesh diameter and arrangement of the insect-proof net 122 remain unchanged, and the air permeability of the insect-proof net 122 also does not change. Second, the gas in the ventilation pipeline 111 pushes the insect-proof net 122 and then pushes the mounting plate 121 to rotate around the inner side of the rain cover shell 11, that is, the gas in the ventilation pipeline 111 exerts a torque on the insect-proof net 122 that is opposite to the elastic torque of the elastic member 13. When the gas pressure gradually increases until the torque exerted by the gas on the insect-proof net 122 is greater than the torque of the elastic member 13 on the insect-proof net 122, the elastic member 13 begins to stretch and deform, so that one end of the insect-proof net 122 gradually moves away from its initial position, increasing the air permeability of the ventilation pipeline 111, so that the gas pressure gradually decreases until the torque exerted by the gas on the insect-proof net 122 is less than the torque of the elastic member 13 on the insect-proof net 122, and the elastic member 13 begins to contract, so that one end of the insect-proof net 122 gradually returns to its initial position, reducing the air permeability of the ventilation pipeline 111. Second, when one end of the insect-proof net 122 moves away from its initial position and the air permeability of the ventilation pipeline 111 increases, a continuous gas flow flows to the insect-proof net 122, so that insects cannot pass through the area not covered by the mesh of the insect-proof net 122.

[0029] Further, the extrusion wheels 123 are arranged on opposite sides of the mounting plate 121, and the axes of the extrusion wheels 123 are parallel to each other and parallel to the mounting plate 121. The insect-proof net 122 can be separated from the mounting plate 121 along the rolling direction of the extrusion wheels 123.

[0030] Specifically, in the first embodiment, two rows of 14 extrusion wheels 123 are preferred, so that the extrusion wheels 123 can exert uniform pressure on the side edges of the insect-proof net 122, enhancing the static friction between the insect-proof net 122 and the mounting plate 121, and avoiding the change of the position of the insect-proof net 122 under the impact of the gas to affect its air permeability. Second, the adjacent two side edges of the side of the mounting plate 121 rotating around the rain cover shell 11 are respectively rotationally connected with the extrusion wheels 123, so that when replacing the insect-proof net 122, the mounting plate 121 is rotated downward, and the insect-proof net 122 can form rolling friction with the extrusion wheels 123 under the action of tension and then be separated from the mounting plate 121, reducing resistance and improving replacement efficiency, and facilitating cleaning after replacement.

[0031] Embodiment Two

[0032] The structure of the energy storage fire extinguishing system is a common structure, and the structural schematic diagram is disclosed. The second embodiment includes: an energy storage room provided with a pressure relief port allowing gas to flow; a mechanical fire relief valve arranged at the pressure relief port, the mechanical fire relief valve being capable of controlling the flow of gas inside the energy storage room; and the rain cover of the first embodiment for wrapping the mechanical fire relief valve and the pressure relief port.

[0033] Specifically, when a fire occurs in the energy storage room and is extinguished, the pressure in the energy storage room will suddenly increase, and the gas is released to the ventilation pipeline 111 inside the rainproof cover shell 11 through the pressure relief port and the mechanical fire pressure relief valve, the insect screen 122 and the elastic member 13 change the gas permeability of the ventilation pipeline 111 according to the gas pressure, thereby improving the gas release rate, shortening the time for the gas pressure in the energy storage room to return to normal, rapidly reducing the gas pressure inside the energy storage room, thereby avoiding damage to the facilities inside the energy storage room, and shortening the time for personnel to wait for the gas pressure to return to normal to enter the energy storage room, improving the maintenance efficiency.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

[0035] The technical, shape and structure parts not described in detail in the utility model are all known technologies.

Claims

1. A rain cover comprising a rain cover body (1) including a hollow rain cover housing (11) and an insect prevention assembly (12) provided at one end of the rain cover housing (11), characterized in that, The insect-proof assembly (12) comprises: an insect-proof net (122) turned around the inner side of the rain cover shell (11), which is used to control the air permeability in the hollow channel of the rain cover shell (11); and at least two extrusion wheels (123) tangent to the insect-proof net (122), which can always apply pressure to opposite sides of the insect-proof net (122) to fix the insect-proof net (122).

2. The rain cover of claim 1, wherein: The insect-proof assembly (12) further comprises a mounting plate (121) rotationally connected to the inner side of the rain cover shell (11), the extrusion wheels (123) extrude the insect-proof net (122) on the mounting plate (121) to fix the insect-proof net (122), the middle area of the mounting plate (121) forms a through hole allowing the gas inside the rain cover shell (11) to flow, and the projection of the insect-proof net (122) on the mounting plate (121) completely covers the through hole.

3. The rain cover of claim 2, wherein: The rain cover body (1) further comprises an elastic member (13) arranged at one end of the mounting plate (121) away from the turning point, which can apply a pulling force close to the rain cover shell (11) to the mounting plate (121) away from the rain cover shell (11) during turning, and the elastic member (13) is detachably connected to the mounting plate (121).

4. The rain cover of claim 3, wherein: The deformation amount of the elastic member (13) is proportional to the gas pressure inside the rain cover shell (11) when the air permeability of the insect-proof net (122) is fixed.

5. The rain cover of claim 4, wherein: The extrusion wheels (123) are arranged on opposite sides of the mounting plate (121), the axes of the extrusion wheels (123) are parallel to each other and to the mounting plate (121), and the insect-proof net (122) can be separated from the mounting plate (121) along the rolling direction of the extrusion wheels (123).

6. An energy storage fire suppression system characterized by, Comprise: a storage room provided with a pressure relief port allowing gas to flow; a mechanical fire relief valve arranged at the pressure relief port, which can control the gas flow inside the storage room; and a rain cover as claimed in claim 4 for wrapping the mechanical fire relief valve and the pressure relief port.

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