Spray head for energy storage and fire fighting

Abstract

The utility model discloses a spray head for energy storage fire fighting, which comprises a spray head valve body, a spray nozzle and a spray nozzle mounting plate, a compression ring is arranged in the spray head valve body, the compression ring is arranged close to the inlet end of the spray head valve body, a rubber valve clack is further arranged between the compression ring and the inlet end of the spray head valve body, the rubber valve clack is used for sealing the inlet end of the spray head valve body, and a valve core is arranged in the spray nozzle. The outlet end of the nozzle is connected with the nozzle mounting plate, the nozzle mounting plate is provided with a spout corresponding to the outlet end of the nozzle, the inlet end of the nozzle extends into the nozzle valve body, a filter screen is clamped between the pressing ring and the inlet end of the nozzle, the nozzle mounting plate is connected with the nozzle valve body, and the wall surface of the battery pack is clamped between the nozzle mounting plate and the nozzle valve body. The fire extinguishing valve has the beneficial effects that the structure is simple, the size is small, impurities in a fire extinguishing agent can be effectively isolated through the internally-arranged filter screen, fluid in an inner cavity channel of the valve element is smooth, and nozzle blockage is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage fire fighting, in particular to a sprinkler head used for energy storage fire fighting. Background Art

[0002] In recent years, the position of lithium battery energy storage systems in power systems has become increasingly important, and lithium battery energy storage power stations have gradually achieved large-scale application. Energy storage power stations generally include several energy storage containers, in which several battery clusters are arranged, and several battery packs form a battery cluster. When lithium batteries are overcharged or overloaded, chemical reactions occur inside the battery packs and heat is continuously generated. Heat accumulation causes thermal runaway, causing fires or even explosions, which poses a great fire hazard. Therefore, energy storage power stations must be equipped with fire protection systems, and the fire protection systems of energy storage power stations can now reach PACK-level fire protection, that is, the fire protection system can directly spray fire extinguishing agents into the battery packs through nozzles.

[0003] At present, fire sprinklers for energy storage battery packs usually need to be provided with elastic components and nozzles, and the elastic components and nozzles are used in conjunction to achieve the sealing and spraying of the sprinklers. For example, the fire extinguishing nozzle device for new energy battery box of China Utility Model Patent CN216169490U achieves the sealing and spraying of the sprinkler through a top valve, a spring and a cyclone in the nozzle. Although this structure can maintain the sealing inside the battery pack when the battery pack is working normally, and can enable the sprinkler to have a certain opening pressure when the battery pack is thermally out of control, it cannot effectively isolate impurities in the fire extinguishing agent. Once impurities enter the sprinkler, it will cause the sprinkler to be blocked, affecting the spraying of the sprinkler and failing to suppress the fire in time. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a nozzle for energy storage fire fighting, which has a simple structure and a small size. The filter screen inside can effectively isolate impurities in the fire extinguishing agent, ensure the smooth flow of fluid in the cavity of the valve core, and prevent the nozzle from being blocked.

[0005] The purpose of the utility model is achieved through the following technical measures: a sprinkler for energy storage fire fighting, comprising a sprinkler valve body, a nozzle and a nozzle mounting plate, a pressure ring is provided in the sprinkler valve body, the pressure ring is arranged close to the inlet end of the sprinkler valve body, a rubber valve flap is also provided between the pressure ring and the inlet end of the sprinkler valve body, the rubber valve flap is used to seal the inlet end of the sprinkler valve body, a valve core is provided in the nozzle, the outlet end of the nozzle is connected to the nozzle mounting plate, a nozzle corresponding to the outlet end of the nozzle is provided on the nozzle mounting plate, the inlet end of the nozzle extends into the sprinkler valve body, a filter is sandwiched between the pressure ring and the inlet end of the nozzle, the nozzle mounting plate is connected to the sprinkler valve body, and a wall of a battery pack is sandwiched between the nozzle mounting plate and the sprinkler valve body.

[0006] Furthermore, the nozzle is connected to the nozzle valve body via threads.

[0007] Furthermore, an O-ring is provided between the nozzle and the nozzle valve body.

[0008] Furthermore, the filter screen is a stainless steel filter screen.

[0009] Furthermore, a sealing gasket is provided at the outlet end of the spray head valve body.

[0010] Furthermore, the sealing gasket is a planar sealing gasket.

[0011] Furthermore, the nozzle mounting plate, the wall surface of the battery pack and the nozzle valve body are connected by fixing bolts.

[0012] Furthermore, the nozzle is connected to the nozzle mounting plate via bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the present application sets a filter screen at the inlet end of the nozzle, and the impurities in the fire extinguishing agent are blocked on one side of the filter screen through the filter screen, and the impurities or other pollutants will not reach the valve core, thereby ensuring the smooth flow of the fluid in the cavity of the valve core, and achieving the effect of preventing the nozzle from being blocked. At the same time, a rubber valve flap is also provided between the filter screen and the inlet end of the nozzle valve body, and the sealing of the inlet end is achieved by the rubber valve flap. The present application does not need to set up elastic components, and the rubber valve flap, pressure ring, filter screen and nozzle fit tightly in the nozzle valve body, which improves the compactness of the components in the nozzle and reduces the volume of the nozzle. The present application adopts a rigid filter screen, which can prevent the nozzle from being blocked without hindering the discharge of the fire extinguishing agent, so that the inside of the valve core is unobstructed, and the nozzle can effectively spray the fire extinguishing agent.

[0014] The utility model is described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the nozzle valve body.

[0017] Figure 3 It is a schematic diagram of the structure of the nozzle.

[0018] Among them, 1. nozzle valve body, 2. nozzle, 3. nozzle mounting plate, 4. pressure ring, 5. valve core, 6. filter screen, 7. rubber valve disc, 8. O-ring, 9. sealing gasket, 10. fixing bolt. DETAILED DESCRIPTION

[0019] like Figures 1 to 3As shown, a nozzle for energy storage fire fighting includes a nozzle valve body 1, a nozzle 2 and a nozzle mounting plate 3. A pressure ring 4 is provided in the nozzle valve body 1. The pressure ring 4 is arranged near the inlet end of the nozzle valve body 1. The inlet end of the nozzle valve body 1 is used to connect a fire extinguishing device. A rubber valve flap 7 is also provided between the pressure ring 4 and the inlet end of the nozzle valve body 1. The rubber valve flap 7 is used to seal the inlet end of the nozzle valve body 1. A valve core 5 is provided in the nozzle 2. The valve core 5 can adopt any structure in the prior art, for example, a swirl valve can be adopted. The outlet end of the nozzle 2 is connected to the nozzle mounting plate 3. The nozzle mounting plate 3 is provided with a nozzle corresponding to the outlet end of the nozzle 2. The inlet end of the nozzle 2 extends into the nozzle valve body 1. A filter screen 6 is sandwiched between the pressure ring 4 and the inlet end of the nozzle 2. The nozzle mounting plate 3 is connected to the nozzle valve body 1. The wall of the battery pack is sandwiched between the nozzle mounting plate 3 and the nozzle valve body 1. Specifically, during installation, the nozzle mounting plate 3 is placed inside the battery pack, the nozzle valve body 1 is placed outside the battery pack, and the nozzle valve body 1, the battery pack wall and the nozzle mounting plate 3 are fixed by fixing bolts 10. The present application sets a filter screen 6 at the inlet end of the nozzle, and the impurities in the fire extinguishing agent are blocked on one side of the filter screen 6 by the filter screen 6, and the impurities or other pollutants will not reach the valve core 5, thereby ensuring the smooth flow of the fluid in the cavity of the valve core 5, and achieving the effect of preventing the nozzle from being blocked. At the same time, a rubber valve flap 7 is also provided between the filter screen 6 and the inlet end of the nozzle valve body 1, and the rubber valve flap 7 is used to achieve the sealing of the inlet end. When the battery pack has thermal runaway, the fire extinguishing agent can flow through the inlet end of the nozzle valve body 1, break through the rubber valve flap 7, flow through the pressure ring 4, the filter screen 6 into the valve core 5 of the nozzle 2, and then spray into the battery pack through the outlet end of the nozzle 2 and the nozzle of the nozzle mounting plate 3. Furthermore, the present application does not require the provision of elastic components, and the rubber valve flap 7, the pressure ring 4, the filter screen 6 and the nozzle 2 are tightly fitted in the nozzle valve body 1, thereby improving the compactness of the components in the nozzle and reducing the volume of the nozzle.

[0020] The nozzle 2 is connected to the spray head valve body 1 by threads. The nozzle 2 is screwed into the spray head valve body 1 to provide extrusion force to the rubber valve disc 7, the pressure ring 4 and the filter screen 6 in the spray head valve body 1, further promoting the close fit of the components in the spray head valve body 1.

[0021] An O-ring 8 is provided between the nozzle 2 and the spray head valve body 1. The O-ring 8 is used to achieve sealing between the nozzle 2 and the spray head valve body 1. Further preferably, the O-ring 8 is provided on the outer side of the threaded connection between the nozzle 2 and the spray head valve body 1, that is, on the side close to the spray head outlet end.

[0022] The filter screen 6 is a stainless steel filter screen. The rigid filter screen can prevent the nozzle from being blocked and will not hinder the ejection of the fire extinguishing agent, so that the inside of the valve core 5 is unobstructed and the nozzle can effectively spray the fire extinguishing agent.

[0023] The outlet end of the spray head valve body 1 is also provided with a sealing gasket 9. Further, the sealing gasket 9 is a planar sealing gasket. Specifically, the sealing gasket 9 is located between the spray head valve body 1 and the wall of the battery pack, and the sealing gasket 9 is used to achieve sealing between the battery pack and the spray head valve body 1.

[0024] The nozzle 2 is connected to the nozzle mounting plate 3 by bolts.

[0025] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0026] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A nozzle for energy storage fire fighting, characterized in that: It includes a nozzle valve body, a nozzle and a nozzle mounting plate, wherein a pressure ring is arranged in the nozzle valve body, and the pressure ring is arranged close to the inlet end of the nozzle valve body, and a rubber valve flap is also arranged between the pressure ring and the inlet end of the nozzle valve body, and the rubber valve flap is used to seal the inlet end of the nozzle valve body, a valve core is arranged in the nozzle, the outlet end of the nozzle is connected to the nozzle mounting plate, a nozzle corresponding to the outlet end of the nozzle is arranged on the nozzle mounting plate, the inlet end of the nozzle extends into the nozzle valve body, a filter is sandwiched between the pressure ring and the inlet end of the nozzle, the nozzle mounting plate is connected to the nozzle valve body, and the wall of the battery pack is sandwiched between the nozzle mounting plate and the nozzle valve body.

2. The nozzle for energy storage firefighting according to claim 1, characterized in that: The nozzle is connected to the spray head valve body through threads.

3. The nozzle for energy storage firefighting according to claim 1 or 2, characterized in that: An O-shaped sealing ring is arranged between the nozzle and the spray head valve body.

4. The nozzle for energy storage firefighting according to claim 1, characterized in that: The filter screen is a stainless steel filter screen.

5. The nozzle for energy storage fire fighting according to claim 1, characterized in that: A sealing gasket is also provided at the outlet end of the spray head valve body.

6. The nozzle for energy storage firefighting according to claim 5, characterized in that: The sealing gasket is a flat sealing gasket.

7. The nozzle for energy storage firefighting according to claim 1, characterized in that: The nozzle mounting plate, the wall surface of the battery pack and the nozzle valve body are connected by fixing bolts.

8. The sprinkler for energy storage firefighting according to claim 1, characterized in that: The nozzle is connected to the nozzle mounting plate via bolts.

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