CN210331457U - Firewall for building - Google Patents

Abstract

The utility model discloses a firewall for building relates to the building engineering field. The technical key points are as follows: the utility model provides a firewall for building, includes the wall body, has seted up in the wall body and has placed the chamber, places the intracavity and is provided with granular sodium nitrite and granular ammonium chloride, is provided with in the wall body and places the jet-propelled pipe in chamber intercommunication, and the jet-propelled pipe is kept away from the one end of placing the chamber and is worn out the wall body lateral wall, the utility model has the advantages of improve firewall applicability.

Description

Firewall for building

Technical Field

The utility model relates to a building engineering field, more specifically say, it relates to a firewall for building.

Background

In order to prevent the fire from spreading too quickly in case of a fire, a firewall is usually installed in the building.

The Chinese utility model patent with publication number CN206979901U discloses an intelligent firewall, which comprises a three-way air pipe, wherein one end of a main passage of the three-way air pipe is sequentially provided with a controller, an automatic emergency fire-retardant valve, a spray head, an audible and visual alarm and an infrared probe; and an emergency discharge valve, a connecting rod and a cylinder are sequentially arranged on the auxiliary passage of the three-way air pipe.

Similar to the fire wall described above, fire extinguishment is performed by automatic water spray after a fire is discovered in the prior art, and fire extinguishment cannot be performed by water spray in some places, such as a warehouse for storing materials which can react with water violently and a warehouse for storing batteries. Once water is sprayed to these places after a fire, the chemical substances are liable to undergo a severe chemical reaction, and the battery is liable to short-circuit to cause explosion, which not only makes it impossible to extinguish the fire, but also increases the fire, resulting in poor applicability of the fire wall.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent hot wall for building, it has the advantage that improves and prevent hot wall suitability.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a firewall for building, includes the wall body, has seted up in the wall body and has placed the chamber, it is provided with granular sodium nitrite and granular ammonium chloride to place the intracavity, be provided with in the wall body and place the jet-propelled pipe in chamber intercommunication, the jet-propelled pipe is kept away from the one end of placing the chamber and is worn out the wall body lateral wall.

By adopting the technical scheme, the granular sodium nitrite and the granular ammonium chloride can generate chemical reaction at 85 ℃, and a large amount of nitrogen is generated and sprayed into the warehouse from the air injection pipe. Because nitrogen is inert gas, the nitrogen spouts the fire source department in the warehouse can completely cut off the contact of fire source and oxygen, plays the fire extinguishing effect. Meanwhile, the inertia of the nitrogen makes the fire-proof wall not easy to react with chemical substances, and the fire-proof wall cannot conduct electricity and cause short circuit of batteries, so that the fire-proof wall can be suitable for most of existing warehouses, warehouses storing chemical materials and warehouses storing batteries and the like, and the applicability of the fire-proof wall is improved.

Therefore, the firewall has the advantage of improving the applicability of the firewall.

Furthermore, a one-way valve is arranged in the gas injection pipe.

Through adopting above-mentioned technical scheme, because the top layer of sodium nitrite can be slow in the air and oxygen reaction generate sodium nitrate, after having set up the check valve, the air is difficult to get into from the jet-propelled intraductal and places the intracavity, avoids sodium nitrite rotten, improves sodium nitrite's stability.

Further, place the intracavity and be provided with metal heat conduction cover, the wall body lateral wall is worn out to metal heat conduction cover's one end, sodium nitrite and ammonium chloride all are located metal heat conduction cover, jet-propelled pipe and the inside intercommunication of metal heat conduction cover.

Through adopting above-mentioned technical scheme, the material of metal heat conduction cover is the metal, and the heat conductivility of metal is stronger, and sodium nitrite and ammonium chloride can reach reaction temperature more fast, improve conflagration response rate.

Furthermore, a powdery silica gel drying agent is arranged in the metal heat conduction sleeve.

By adopting the technical scheme, the sodium nitrite is easy to deliquesce, and after the silica gel drying agent is arranged, the silica gel drying agent can play a role in drying the inner space of the metal heat conduction sleeve, so that the deliquescence of the sodium nitrite is avoided, and the stability of the sodium nitrite is improved; meanwhile, the silica gel desiccant has high thermal stability and can be continuously used after high temperature.

Furthermore, a carbon fiber bag is hung on the inner wall of the metal heat conduction sleeve, and the silica gel desiccant is located in the carbon fiber bag.

By adopting the technical scheme, the powdery silica gel desiccant is easily mixed with the granular sodium nitrite and the granular ammonium chloride, so that the granular sodium nitrite and the granular ammonium chloride cannot react well, and after the carbon fiber bag is arranged, the powdery silica gel desiccant is intensively arranged in the carbon fiber bag, and the granular sodium nitrite and the granular ammonium chloride are not blocked by the silica gel desiccant, so that the reaction rate and the fire response rate are improved; moreover, the carbon fiber bag can withstand high-temperature roasting, and after a fire disaster occurs, the carbon fiber bag cannot fall off, so that the carbon fiber bag can be continuously used, and the stability of quick response of the fire disaster is ensured.

Furthermore, a metal concealing plate is arranged on one side of the wall body, which is positioned on the metal heat conducting sleeve and protrudes out of the wall body, and the metal concealing plate is provided with a gas orifice communicated with the gas ejector pipe.

By adopting the technical scheme, the metal concealer plate can play a role in heat conduction; meanwhile, the effect of concealing the flaws is achieved, the end, protruding out of the wall body, of the metal heat conduction sleeve is concealed, and the attractiveness of the wall surface is guaranteed. And the nitrogen can be sprayed out from the gas orifice, so that the fireproof performance of the firewall is not influenced.

Furthermore, the end of the air injection hole far away from the air injection pipe is an outlet end, the end of the air injection hole close to the air injection pipe is an inlet end, and the aperture of the outlet end of the air injection hole is smaller than that of the inlet end of the air injection hole.

Through adopting above-mentioned technical scheme, nitrogen gas is along fumarole spun in-process, and the aperture of fumarole reduces gradually, therefore the atmospheric pressure of nitrogen gas also increases gradually for nitrogen gas can spray to farther distance, guarantees that whole warehouse region homoenergetic enough is sprayed by nitrogen gas, improves the efficiency of putting out a fire.

Furthermore, a filter screen is arranged in the air injection hole.

Through adopting above-mentioned technical scheme, the fumarole can be avoided by the filter screen and blockked up, improves the stability of putting out a fire.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) by arranging the placing cavity, arranging the sodium nitrite and the ammonium chloride in the placing cavity and arranging the gas spraying pipe communicated with the placing cavity, when the temperature in the placing cavity reaches over 85 ℃ after ignition, the sodium nitrite and the ammonium chloride can generate chemical reaction and generate a large amount of nitrogen, the nitrogen is inert gas, not only can play a fire extinguishing effect, but also is not easy to react with chemical substances, can not cause short circuit of a battery, and improves the applicability of the firewall;

(2) by arranging the one-way valve, gas can only be discharged but not enter, so that the sodium nitrite is prevented from being oxidized; the silica gel drying agent is arranged, and can play a drying effect, so that sodium nitrite is prevented from deliquescing, and the stability of sodium nitrite is improved;

(3) by arranging the metal heat conduction sleeve and the metal concealing plate, the heat transfer of metal is faster, the sodium nitrite and the ammonium chloride can react faster, and the fire response speed is improved; the gas injection holes are arranged, the hole diameters of the inlet end and the outlet end of each gas injection hole are different, pressurization can be carried out when nitrogen is injected, and the nitrogen injection range is enlarged;

(4) through setting up the filter screen, the air jet hole jam is avoided to the filter screen, improves the stability of putting out a fire.

Drawings

FIG. 1 is a schematic sectional view of the present embodiment;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Reference numerals: 1. a wall body; 2. a placement chamber; 3. sodium nitrite; 4. ammonium chloride; 5. a gas ejector tube; 6. a one-way valve; 7. a metal heat conductive sleeve; 8. a silica gel desiccant; 9. a carbon fiber bag; 10. a metal concealer plate; 11. a gas injection hole; 1101. an outlet end; 1102. an inlet end; 12. and (4) a filter screen.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1 and 2, a firewall for building comprises a vertically arranged wall body 1, wherein a placing cavity 2 is formed in the wall body 1, and an opening communicated with the outside is formed in one side of the placing cavity 2. Place and be provided with the inside metal heat conduction cover 7 that has the cavity in the chamber 2, the outer wall of metal heat conduction cover 7 with place the laminating of 2 inner walls in chamber, the one end of metal heat conduction cover 7 is worn out the lateral wall of wall body 1 from the opening part of placing chamber 2.

Referring to fig. 1 and 3, granular sodium nitrite 3 and granular ammonium chloride 4 are placed in a metal heat-conducting sleeve 7, and the sodium nitrite 3 and the granular ammonium chloride 4 are subjected to chemical reaction at 85 ℃ to generate a large amount of nitrogen. The top of the inner wall of the metal heat conduction sleeve 7 is downwards fixed with a hook, a carbon fiber bag 9 is suspended on the hook, and the carbon fiber bag 9 is made of carbon fibers and has good heat resistance. The carbon fiber bag 9 is internally provided with a powdery silica gel desiccant 8, and the silica gel desiccant 8 can play a drying role.

Referring to fig. 2 and 3, an air injection pipe 5 communicated with the inside of the metal heat conduction sleeve 7 is arranged in the wall body 1, and one end of the air injection pipe 5 far away from the placing cavity 2 penetrates through the side wall of the wall body 1. The gas injection pipe 5 is internally provided with a one-way valve 6, and nitrogen generated inside the metal heat conduction sleeve 7 can be sprayed into the warehouse from the gas injection pipe 5, so that the fire extinguishing effect is achieved.

A metal concealing plate 10 is vertically arranged on one side, protruding out of the wall body 1, located on the metal heat conduction sleeve 7, the metal concealing plate 10 is fixed with the wall body 1 through a reinforcing steel bar, and the metal heat conduction sleeve 7 is welded on the metal concealing plate 10 to form a sealing structure.

The jet orifice 11 that communicates with jet pipe 5 is seted up to metal concealing board 10, and the one end that jet orifice 11 kept away from jet pipe 5 is exit end 1101, and the one end that jet orifice 11 is close to jet pipe 5 is entrance point 1102, and the aperture of jet orifice 11 reduces to exit end 1101 direction from entrance point 1102 gradually, and nitrogen gas is along the in-process atmospheric pressure of jet orifice 11 spun increase gradually for nitrogen gas can spray to farther distance, improves the efficiency of putting out a fire.

The air injection hole 11 is embedded with a filter screen 12, the filter screen 12 is close to the outlet end 1101 of the air injection hole 11, and the filter screen 12 can prevent the air injection hole 11 from being blocked.

The utility model discloses a working process and beneficial effect as follows: when a fire occurs in the warehouse, when the fire spreads to be close to the firewall or the metal concealing plate 10 is burned, the burned heat can be transferred into the metal heat conduction sleeve 7 along the metal concealing plate 10, and when the temperature of the metal heat conduction sleeve 7 is higher than 85 ℃, the granular sodium nitrite 3 and the granular ammonium chloride 4 can generate chemical reaction, generate a large amount of nitrogen and spray the nitrogen into the warehouse through the check valve 6 and the air injection pipe 5.

Because nitrogen is inert gas, the nitrogen spouts the fire source department in the warehouse can completely cut off the contact of fire source and oxygen, plays the fire extinguishing effect. Meanwhile, the inertia of the nitrogen makes the fire-proof wall not easy to react with chemical substances, and the fire-proof wall cannot conduct electricity and cause short circuit of batteries, so that the fire-proof wall can be suitable for most of existing warehouses, warehouses storing chemical materials and warehouses storing batteries and the like, and the applicability of the fire-proof wall is improved.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a firewall for building, includes wall body (1), its characterized in that, has seted up in wall body (1) and has placed chamber (2), it is provided with granular sodium nitrite (3) and granular ammonium chloride (4) in chamber (2) to place, be provided with in wall body (1) and place jet-propelled pipe (5) of chamber (2) intercommunication, jet-propelled pipe (5) are kept away from the one end of placing chamber (2) and are worn out wall body (1) lateral wall.

2. Fire protection wall for buildings according to claim 1, characterized in that a one-way valve (6) is arranged in the gas lance (5).

3. Fire wall according to claim 1, wherein a metal heat conduction sleeve (7) is arranged in the placement cavity (2), one end of the metal heat conduction sleeve (7) penetrates through the side wall of the wall body (1), the sodium nitrite (3) and the ammonium chloride (4) are both located in the metal heat conduction sleeve (7), and the gas injection pipe (5) is communicated with the interior of the metal heat conduction sleeve (7).

4. Fire protection wall according to claim 3, wherein said metal heat-conducting sheath (7) is provided with a silica gel desiccant powder (8).

5. Fire protection wall according to claim 4, wherein a carbon fiber bag (9) is suspended from the inner wall of the metal heat-conducting sleeve (7), and the silica gel desiccant (8) is located in the carbon fiber bag (9).

6. The fire wall for the building as claimed in claim 3, wherein a metal covering plate (10) is disposed on one side of the wall (1) protruding from the wall (1) and located on the metal heat conduction sleeve (7), and the metal covering plate (10) is provided with a gas injection hole (11) communicated with the gas injection pipe (5).

7. The fire protection wall according to claim 6, wherein the end of the air injection hole (11) far away from the air injection pipe (5) is an outlet end (1101), the end of the air injection hole (11) near the air injection pipe (5) is an inlet end (1102), and the diameter of the outlet end (1101) of the air injection hole (11) is smaller than that of the inlet end (1102) of the air injection hole (11).

8. Fire protection wall for buildings according to claim 6, characterized in that a filter screen (12) is arranged in the air injection hole (11).

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