Foam fire extinguishing system

Abstract

The utility model discloses a foam fire extinguishing system which comprises a feeding assembly, a water supply assembly and a plurality of spraying assemblies, the feeding assembly comprises a storage tank and a discharge pipe, the storage tank is used for storing a foaming agent, the discharge pipe is communicated with the storage tank, and the discharge pipe is used for leading out the foaming agent in the storage tank. The water supply assembly comprises a water pump and a water supply pipe, and the water pump communicates with the water supply pipe for pressing water to the water supply pipe. The spraying assembly comprises a mixer and a nozzle, the mixer communicates with the water supply pipe, the discharging pipe and the nozzle, and the mixer mixes water and a foaming agent to form foam water and guides the foam water to the nozzle. Wherein the mixing proportions of the water and the foaming agent in the mixers are different. Due to the fact that the mixing proportions of the water and the foaming agent in all the mixers are different, foam water sprayed by different spray heads is different in component, then the fire extinguishing requirements of different areas can be met, and the foam fire extinguishing system can meet the fire extinguishing requirements of different areas at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fire fighting equipment, concretely relates to a foam fire extinguishing system. BACKGROUND

[0002] The foam fire extinguishing system is a common fire fighting facility, and when the foam fire extinguishing system extinguishes fire, can fill the protection space with full submergence or covering mode, is not limited by the size of the protection area and volume, and can be used to extinguish A class fire and B class fire.

[0003] The existing foam fire extinguishing system can be seen from the patent with the application number CN202110854882.8, which mixes the foaming agent and water to form foam water, and sprays the foam water to extinguish the fire. However, in a chemical plant, the fire hazards in different areas are not the same, so different components of foam water are needed to extinguish the fire, and the existing foam fire extinguishing system can only spray foam water with a certain component, so that the foam fire extinguishing system cannot adapt to the fire protection needs of different areas.

[0004] Therefore, how to make the same set of foam fire extinguishing system meet the fire extinguishing needs of different areas is a technical problem to be solved. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the above technical deficiencies, and provides a foam fire extinguishing system to solve the technical problem of how to make the same set of foam fire extinguishing system meet the fire extinguishing needs of different areas in the prior art.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a foam fire extinguishing system, which comprises:

[0008] The feeding assembly comprises a storage tank and a discharge pipe, the storage tank is used to store the foaming agent, the discharge pipe is communicated with the storage tank, and the discharge pipe is used to guide the foaming agent in the storage tank out;

[0009] The water supply assembly comprises a water pump and a water supply pipe, the water pump is communicated with the water supply pipe, and is used to pressurize water to the water supply pipe; and

[0010] A plurality of spraying assemblies are installed in different areas, and each spraying assembly comprises a mixer and a spray head, the mixer is respectively communicated with the water supply pipe, the discharge pipe and the spray head, the mixer mixes water and foaming agent to form foam water, and guides the foam water to the spray head;

[0011] Among the plurality of mixers, the mixing ratio of water and foaming agent is different.

[0012] In some embodiments, the spraying assembly comprises a first stop valve, which is arranged between the mixer and the spray head to control the opening and closing of the connection between the mixer and the spray head.

[0013] In some embodiments, the first stop valve is an electromagnetic valve.

[0014] In some embodiments, the feeding assembly further comprises a second stop valve, which is arranged in the discharge pipe to control the opening and closing of the discharge pipe.

[0015] In some embodiments, the feeding assembly further comprises a one-way valve, which is arranged in the discharge pipe to prevent the backflow of the foam water to the storage tank.

[0016] In some embodiments, the feeding assembly further comprises a first pressure relief valve and a first pressure relief pipe, which is connected to the discharge pipe, and the first pressure relief valve is arranged in the first pressure relief pipe to control the opening and closing of the first pressure relief pipe.

[0017] In some embodiments, the water supply assembly comprises a second pressure relief valve and a second pressure relief pipe, which is connected to the water supply pipe, and the second pressure relief valve is arranged in the second pressure relief pipe to control the opening and closing of the second pressure relief pipe.

[0018] In some embodiments, the storage tank is provided with a pressurizing port at the top end, and the feeding assembly further comprises a pressurizing pump, which is connected to the pressurizing port, and the pressurizing pump introduces gas into the storage tank through the pressurizing port to increase the pressure in the storage tank.

[0019] In some embodiments, the feeding assembly further comprises a pressurizing valve, which is arranged in the pressurizing port to control the opening and closing of the pressurizing port.

[0020] In some embodiments, the spray head comprises a water distribution pipe and a plurality of nozzles, the water distribution pipe is connected to the mixer, the nozzles are arranged along the length direction of the water distribution pipe, and the nozzles are connected to the water distribution pipe.

[0021] The discharge pipe is used to discharge the foaming agent in the storage tank, the water pump pressurizes the water in the water supply pipe, the mixer mixes the water and the foaming agent to form foam water, and the foam water is guided to the spray head, and finally the foam is sprayed out through the spray head. Due to the different mixing ratios of water and foaming agent in each mixer, the foam water components sprayed by different spray heads are different, thereby meeting the fire extinguishing needs of different areas, so that the foam fire extinguishing system can adapt to different fire prevention needs of different areas at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of a foam fire extinguishing system provided by the embodiments of the present application.

[0023] Reference signs: feed assembly 100, storage tank 110, discharge pipe 120, second stop valve 130, one-way valve 140, first pressure relief valve 150, first pressure relief pipe 160, pressurizing valve 170, pressurizing pump 180, water supply assembly 200, water pump 210, water supply pipe 220, second pressure relief valve 230, second pressure relief pipe 240, spraying assembly 300, mixer 310, spray head 320, water distribution pipe 321, nozzle 322, first stop valve 330. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0025] In order to solve the technical problem of how to make the same set of foam fire extinguishing system meet the fire extinguishing needs of different areas, the utility model provides a foam fire extinguishing system which can spray foam water with different components in different areas to adapt to different fire prevention needs of different areas.

[0026] It should be noted that the foam fire extinguishing system of the utility model is used in but not limited to chemical plant area, in order to facilitate the description, in the utility model, only the foam fire extinguishing system applied in the chemical plant area is taken as an example for description, and the principle of the foam fire extinguishing system applied in other types of equipment is substantially the same as that applied in the chemical plant area, which is not described here.

[0027] Please refer to Figure 1 , Figure 1 It is a structural schematic view of the foam fire extinguishing system in an embodiment of the utility model, the foam fire extinguishing system comprises a feed assembly 100, a water supply assembly 200 and a plurality of spraying assemblies 300, the feed assembly 100 comprises a storage tank 110 and a discharge pipe 120, the storage tank 110 is used to store a foaming agent, the discharge pipe 120 is communicated with the storage tank 110, and the discharge pipe 120 is used to guide the foaming agent in the storage tank 110 out. The water supply assembly 200 comprises a water pump 210 and a water supply pipe 220, the water pump 210 is communicated with the water supply pipe 220 and is used to pressurize water to the water supply pipe 220. The spraying assembly 300 comprises a mixer 310 and a spray head 320, the mixer 310 is respectively communicated with the water supply pipe 220, the discharge pipe 120 and the spray head 320, the mixer 310 mixes water and the foaming agent with each other to form foam water and guides the foam water to the spray head 320. Among them, the mixing ratio of water and the foaming agent in the plurality of mixers 310 is different.

[0028] In the embodiment, the discharge pipe 120 is used to guide the foaming agent in the storage tank 110, the water pump 210 pressurizes the water in the water supply pipe 220, the mixers 310 mix the water and the foaming agent to form the foam water, and the foam water is guided to the spray heads 320, and finally the foam is sprayed out through the spray heads 320. Because the mixing ratio of the water and the foaming agent in each mixer 310 is different, the foam water components sprayed by different spray heads 320 are different, thereby meeting the fire extinguishing needs of different areas, so that the foam fire extinguishing system can simultaneously adapt to the fire prevention needs of different areas.

[0029] In some embodiments, the spray assembly 300 comprises a first stop valve 330, which is arranged between the mixers 310 and the spray heads 320 to control the on-off connection between the mixers 310 and the spray heads 320.

[0030] In the embodiment, when the foam fire extinguishing system is in a standby state, the first stop valve 330 is closed, so that the foam water cannot be sprayed out from the spray heads 320. When a fire occurs, the first stop valve 330 is opened, so that the mixers 310 and the spray heads 320 are connected to each other, thereby guiding the foam water out through the spray heads 320.

[0031] On the basis of the above-mentioned embodiments, in some embodiments, the first stop valve 330 is an electromagnetic valve.

[0032] In the embodiment, because the first stop valve 330 is an electromagnetic valve, the working state of the first stop valve 330 can be switched according to the electrical signal fed back by the fire alarm device.

[0033] In some embodiments, the supply assembly 100 further comprises a second stop valve 130, which is arranged in the discharge pipe 120 to control the on-off connection of the discharge pipe 120.

[0034] In the embodiment, when the foam fire extinguishing system is in a standby state, the second stop valve 130 is opened, so that the foaming agent in the storage tank 110 can move in the discharge pipe 120. When the mixers 310 or the spray heads 320 need to be maintained, the second stop valve 130 is closed, so that the foaming agent in the storage tank 110 cannot pass through the discharge pipe 120.

[0035] On the basis of the above-mentioned embodiments, in some embodiments, the supply assembly 100 further comprises a one-way valve 140, which is arranged in the discharge pipe 120 to prevent the foam water from flowing back to the storage tank 110.

[0036] In some embodiments, the supply assembly 100 further comprises a first pressure relief valve 150 and a first pressure relief pipe 160, the first pressure relief pipe 160 is connected to the discharge pipe 120, and the first pressure relief valve 150 is arranged in the first pressure relief pipe 160 to control the on-off connection of the first pressure relief pipe 160.

[0037] In the embodiment, if the blowing agent in the discharge pipe 120 needs to be emptied for maintenance of the discharge pipe 120, the first pressure relief valve 150 can be opened, and then the blowing agent in the discharge pipe 120 can be discharged through the first pressure relief pipe 160. When the foam fire extinguishing system is normally working, the first pressure relief valve 150 can be closed, and then the first pressure relief pipe 160 is closed.

[0038] In some embodiments, the water supply assembly 200 comprises a second pressure relief valve 230 and a second pressure relief pipe 240, the second pressure relief pipe 240 is communicated with the water supply pipe 220, and the second pressure relief valve 230 is arranged on the second pressure relief pipe 240 to control the opening and closing of the second pressure relief pipe 240.

[0039] In the embodiment, if the water in the water supply pipe 220 needs to be emptied for maintenance of the water supply pipe 220, the second pressure relief valve 230 can be opened, and then the water in the water supply pipe 220 can be discharged through the second pressure relief pipe 240. When the foam fire extinguishing system is normally working, the second pressure relief valve 230 can be closed, and then the second pressure relief pipe 240 is closed.

[0040] In some embodiments, a pressurizing port is arranged at the top of the storage tank 110, and the material supply assembly 100 further comprises a pressurizing pump 180, the pressurizing pump 180 is communicated with the pressurizing port, and the pressurizing pump 180 introduces gas into the storage tank 110 through the pressurizing port to increase the pressure in the storage tank 110.

[0041] In the embodiment, the pressurizing pump 180 introduces gas into the storage tank 110 through the pressurizing port to increase the pressure in the storage tank 110, and the blowing agent has sufficient discharge pressure.

[0042] In some embodiments, the material supply assembly 100 further comprises a pressurizing valve 170, the pressurizing valve 170 is arranged on the pressurizing port to control the opening and closing of the pressurizing port.

[0043] In the embodiment, when it is needed to introduce gas into the storage tank 110 for pressurization, the pressurizing valve 170 can be opened, and then gas can be introduced into the storage tank 110 through the pressurizing port. After the pressurization of the storage tank 110 is completed, the pressurizing valve 170 can be closed, and then the pressurizing port is closed.

[0044] In some embodiments, the spray head 320 comprises a water distribution pipe 321 and a plurality of nozzles 322, the water distribution pipe 321 is communicated with the mixer 310, the plurality of nozzles 322 are arranged along the length direction of the water distribution pipe 321, and the nozzles 322 are communicated with the water distribution pipe 321.

[0045] In the embodiment, the foam water is introduced into the water distribution pipe 321, and then is distributed to each nozzle 322 through the water distribution pipe 321, so that the foam water can be sprayed in a larger range through each nozzle 322.

[0046] In order to better understand the utility model, the following will be combined with Figure 1 The technical scheme of the utility model is described in detail:

[0047] The discharge pipe 120 is used to guide the foaming agent in the storage tank 110 out, the water pump 210 pressurizes water to the water supply pipe 220, the mixer 310 mixes water and the foaming agent to form foam water, the foam water is guided into the water distribution pipe 321 and is distributed to each nozzle 322 through the water distribution pipe 321, so that the foam water can be sprayed in a larger range through each nozzle 322. Because the mixing ratio of water and the foaming agent in each mixer 310 is different, the foam water components sprayed by different nozzles 320 are different, and then the fire extinguishing needs of different areas can be met, so that the foam fire extinguishing system can simultaneously adapt to the fire prevention needs of different areas.

[0048] The specific implementation mode of the utility model described above does not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and deformations made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A foam fire extinguishing system, characterized in that: include: A feeding assembly, comprising a storage tank and a discharge pipe, wherein the storage tank is used to store the foaming agent, and the discharge pipe is connected to the storage tank and is used to discharge the foaming agent in the storage tank; A water supply assembly, comprising a water pump and a water supply pipe, wherein the water pump is connected to the water supply pipe to pressurize water into the water supply pipe; as well as a plurality of spray assemblies, each of which is installed in a different area, and includes a mixer and a spray head, wherein the mixer is respectively connected to the water supply pipe, the discharge pipe, and the spray head, and the mixer mixes water and a foaming agent to form foam water, and directs the foam water to the spray head; The mixing ratios of water and foaming agent in several of the mixers are different.

2. The foam fire extinguishing system according to claim 1, characterized in that: The spray assembly includes a first stop valve, which is installed between the mixer and the spray head to control the on-off between the mixer and the spray head.

3. The foam fire extinguishing system according to claim 2, characterized in that: The first stop valve is a solenoid valve.

4. The foam fire extinguishing system according to claim 1, characterized in that: The feeding assembly further includes a second stop valve, which is installed on the discharge pipe to control the on and off of the discharge pipe.

5. The foam fire extinguishing system according to claim 4, characterized in that: The feeding assembly further comprises a one-way valve, which is installed on the discharge pipe to prevent the foam water from flowing back to the storage tank.

6. The foam fire extinguishing system according to claim 5, characterized in that: The feeding assembly further includes a first pressure relief valve and a first pressure relief pipe. The first pressure relief pipe is connected to the discharge pipe. The first pressure relief valve is installed on the first pressure relief pipe to control the opening and closing of the first pressure relief pipe.

7. The foam fire extinguishing system according to claim 1, characterized in that: The water supply assembly includes a second pressure relief valve and a second pressure relief pipe, the second pressure relief pipe is connected to the water supply pipe, and the second pressure relief valve is installed on the second pressure relief pipe to control the opening and closing of the second pressure relief pipe.

8. The foam fire extinguishing system according to claim 1, characterized in that: A pressurizing port is provided at the top of the storage tank, and the feeding assembly further includes a pressurizing pump, which is connected to the pressurizing port. The pressurizing pump introduces gas into the storage tank through the pressurizing port to increase the pressure in the storage tank.

9. The foam fire extinguishing system according to claim 8, characterized in that: The feeding assembly further includes a pressurizing valve, which is installed at the pressurizing port to control the opening and closing of the pressurizing port.

10. The foam fire extinguishing system according to claim 1, characterized in that: The nozzle includes a water distribution pipe and a plurality of nozzles. The water distribution pipe is connected to the mixer. The plurality of nozzles are arranged along the length direction of the water distribution pipe, and the nozzles are connected to the water distribution pipe.

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