CN101822880B - Pressure-storage premix type water mist foam fire extinguishing apparatus for ships - Google Patents

Abstract

The invention relates to a marine pressure storage and premixed fine water mist foam fire extinguishing device, which comprises a high-pressure gas cylinder, a storage tank, a hose, a reel and a fine water mist foam nozzle; The bottle is connected to the high-pressure gas inlet, and the high-pressure inlet is connected to the high-pressure gas cylinder through a high-pressure gas pipe; a three-way valve is installed at the bottom outlet of the foam stock solution bottle; the downward outlet of the three-way valve is connected to the foam stock solution nozzle through a pipe fitting, and the storage tank is filled with water. Located at the Yishui mouth, the nozzle is located below the liquid level in the tank; the right outlet of the three-way valve is located above the liquid level in the tank; the left outlet of the three-way valve is connected to the regulating valve through pipe fittings. The invention has the advantages of compact structure, small volume, high fire extinguishing efficiency, and is convenient for rapid movement on board, and is used to timely extinguish initial and large fires; the foam stock solution is sprayed into the water at 360 degrees by double foam stock solution nozzles, and the high-pressure gas sprayed subsequently is mixed The liquid is stirred and mixed for the second time, the proportion is accurate, and the mixing is more uniform.

Description

Marine pressure storage premixed water mist foam fire extinguishing device

technical field

The invention belongs to the technical field of fire-fighting facilities, and in particular relates to a novel high-efficiency marine pressure storage premixed fine water mist foam fire extinguishing device.

Background technique

At present, there is no fast, efficient and portable fire-fighting device in the marine fire-fighting system. Moreover, there are relatively many sudden fires in various areas on the ship, and the scale of the fires is also relatively large. Existing dry chemical, CO2, and medium-expansion foam systems can only extinguish early, small-scale fires. Although there are fixed fire-fighting systems (such as aqueous film-forming foam fire-extinguishing systems, etc.) The damage to the equipment is relatively large. Therefore, there is an urgent need for flexible, portable, and high-efficiency fire-fighting equipment on board, which can quickly extinguish Class A, B, and C fires, especially Class B fires within 20m ² .

Contents of the invention

In view of the problems existing in the above-mentioned marine fire-fighting system, in order to solve the problem of quickly extinguishing the initial or larger fires of A, B, C and electrical equipment, especially for the problems of B fires within 20m ² , the present invention provides a light-weight, A marine pressure storage premixed water mist foam fire extinguishing device that can realize convenient and fast movement.

The technical solution for realizing the above-mentioned purpose is as follows:

The marine pressure storage premixed water mist foam fire extinguishing device includes a water mist foam nozzle 6 and a hose 3 . It also includes a storage tank 2, the top of which is provided with a safety valve 10, a water inlet 8, a pressure gauge 21 and a high-pressure gas inlet 17, and the upper side of the storage tank 2 is provided with a benefit water port 9, and the bottom is provided with a discharge port 19; The high-pressure gas inlet 17 is connected to the high-pressure gas cylinder 1 through a high-pressure gas pipe, and the outlet of the high-pressure gas cylinder 1 is provided with a pressure reducing valve 7; Mouth 14, the other end of the hose 3 is connected to the fine water mist foam nozzle 6 through the nozzle handle 16, and the hose 3 is coiled on the reel 4;

The inside of the top of the storage tank 2 is provided with a foam stock solution bottle 5, and the foam stock solution bottle 5 is connected to the high-pressure gas inlet 17; the top of the foam stock solution bottle 5 is provided with a foam stock solution injection port 20, and the bottom outlet is provided with a three-way valve 12; The downward outlet of the three-way valve 12 is connected to the foam liquid nozzle 11 through a pipe fitting, the right outlet of the three-way valve 12 is a through hole 18, and the left outlet is connected to the regulating valve 22 through a pipe fitting, and the regulating valve 22 is located on the outside of the storage tank 2 Water is housed in the storage tank 2, the water level is located at the Yishui port 9, and the nozzle 11 is located below the liquid level in the storage tank; the rightward outlet of the three-way valve 12 is located above the liquid level in the storage tank.

The downward outlet of the three-way valve 12 is connected to two horizontal nozzles 11 mounted on the back through pipe fittings. The nozzles 11 are located 1/2 below the liquid level in the storage tank, and the spray divergence angle of each nozzle is 180 degrees. .

The fine water mist foam nozzle 6 is hemispherical, and 13 nozzles are uniformly arranged on the hemispherical spherical surface, and the spray divergence angle of the fine water mist foam nozzle 6 is 180 degrees.

The marine pressure storage premixed water mist foam fire extinguishing device of the present invention is compact in structure, small in size, light in weight, and highly efficient in fire extinguishing efficiency. expansion. The amount of the foam stock solution adopted is very small, about 1-3% of the total amount of the mixed solution, and the fine water mist foam has little corrosion to the equipment. The spray head is used to spray the foam stock solution into the water under the drive of high-pressure gas to realize mixing, and during the period from the spraying of the foam stock solution to the pressure in the storage tank rising to 1/2 of the working pressure, the high-pressure gas is sprayed into the mixed solution to play a very strong role. The stirring effect further makes the mixture even. So as to replace the existing proportional mixer, it is simpler and more accurate. The fine water mist foam nozzle sprays at 180 degrees, which protects firefighters while ensuring the spray distance and efficient fire extinguishing.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention,

Fig. 2 is a sectional view along line A-A of Fig. 1 .

Detailed ways

The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

Example 1:

Referring to Figure 1 and Figure 2, the marine pressure storage premixed water mist foam fire extinguishing device includes a high-pressure gas cylinder 1, a storage tank 2, a hose 3, a reel 4 and a water mist foam nozzle 6; the top of the storage tank 2 is installed with Safety valve 10, water inlet 8, pressure gauge 21 and high-pressure gas inlet 17, Yishui outlet 9 is provided on one side of storage tank 2, drain outlet 19 is installed at the bottom of storage tank 2; reel 4 is installed on the top of storage tank 2, hose One end of 3 is connected to the liquid outlet 14 of the storage tank 2, the other end of the hose 3 is connected to the fine water mist foam nozzle 6 through the nozzle handle 16, and the hose 3 is coiled on the reel 4.

A foam stock solution bottle 5 is installed on the inside of the top of the storage tank 2, and the foam stock solution bottle 5 is connected to a high-pressure gas inlet 17, which is connected to a high-pressure gas cylinder 1 through a high-pressure gas pipe, and a pressure reducing valve 7 is installed at the outlet of the high-pressure gas cylinder 1. The top of the foam stock solution bottle 5 is provided with a foam injection port 20, and the bottom outlet of the foam stock solution bottle 5 is provided with a three-way valve 12; At 9 Yishui outlets, the nozzle 11 is located below the liquid level in the storage tank; the rightward outlet of the three-way valve 12 is located above the liquid level in the storage tank. The leftward outlet of the three-way valve 12 is connected to the regulating valve 22 through a pipe fitting, and the regulating valve is located outside one side of the storage tank 2 .

During the fire extinguishing operation, the gas in the high-pressure gas cylinder 1 enters the high-pressure gas inlet 17 of the foam stock solution bottle 5 through the high-pressure gas pipe after being decompressed by the pressure reducing valve 7 . First, only the downward outlet of the three-way valve 12 is connected, and the high-pressure gas drives the foam stock solution to be sprayed into the water. The spray divergence angle of the foam stock solution nozzle 11 is 180 degrees. After the foam stock solution is sprayed and the pressure in the storage tank 2 rises to 1/2 of the working pressure, the right outlet of the three-way valve 12 is connected, and the direction of the three-way valve 12 is turned on. The lower exit is closed. The high-pressure gas enters the upper space of the storage tank 2 to drive the mixed liquid of water and foam. After the working pressure is reached, the ball valve 13 and the ball valve 15 are opened, and the mixed liquid passes through the liquid outlet 14, and then through the hose 3, and is sprayed out from the fine water mist foam nozzle 6.

Example 2:

The downward outlet of the three-way valve 12 is connected with two horizontal spray nozzles 11 mounted on the back through pipe fittings. The nozzle 11 is located at 1/2 below the liquid level in the storage irrigation;

The fine water mist foam nozzle 6 is hemispherical, and 13 nozzles are uniformly distributed on the hemispherical spherical surface, and the divergence angle of the fine water mist foam nozzle 6 is 180 degrees.

Other structures are with embodiment 1.

The fine water mist foam nozzle 6 sprays outwards at 180 degrees, which can protect the firefighters who hold the nozzle handle 16 while efficiently extinguishing the fire. Experimental result shows, the device 50L specification of present embodiment, foam mixture concentration 1.5%, when the working pressure in the storage tank is 4MPa, can extinguish 6m ² gasoline fire in 30 seconds, extinguish 10m ² aviation kerosene in 60 seconds fire and diesel fire of 15m ² .

Claims (3)

1. pressure-storage premix type water mist foam fire extinguishing apparatus for ships comprises thin water smoke foam nozzle (6) and flexible pipe (3); It is characterized in that: also comprise storage tank (2), its top is provided with safety valve (10), water inlet (8), Pressure gauge (21) and pressurized gas inlet (17), and said storage tank (2) top one side is provided with gap (9), and the bottom is provided with rushes down liquid mouth (19); Said pressurized gas inlet (17) connects gas cylinder (1) through high-pressure air pipe, and gas cylinder (1) outlet is provided with pressure-reducing valve (7); Said storage tank (2) top is provided with reel (4), and an end of flexible pipe (3) is connecting the liquid outlet (14) of storage tank (2), and the other end of flexible pipe (3) is connecting thin water smoke foam nozzle (6) through nozzle handle (16), and flexible pipe (3) is coiled on the reel (4);

Said storage tank (2) inside top is provided with foam dope bottle (5), and foam dope bottle (5) is being communicated with pressurized gas inlet (17); Said foam dope bottle (5) top is provided with foam dope inlet (20), and outlet at bottom is provided with triple valve (12); The downward outlet of said triple valve (12) is being communicated with foam dope shower nozzle (11) through pipe fitting, and the outlet to the right of triple valve (12) is through hole (18), and outlet left connects control valve (22) through pipe fitting, and it is outside that control valve (22) is positioned at storage tank (2) one sides; Said storage tank is equipped with water in (2), and the water level liquid level is positioned at gap (9) to be located, and said foam dope shower nozzle (11) is positioned at below the storage tank liquid level; The outlet to the right of triple valve (12) is positioned at more than the storage tank liquid level.

2. pressure-storage premix type water mist foam fire extinguishing apparatus for ships according to claim 1; It is characterized in that: the downward outlet of said triple valve (12) is connecting the foam dope shower nozzle (11) that two levels are installed dorsad through pipe fitting; Said foam dope shower nozzle (11) is positioned at 1/2 place below the storage tank liquid level, and the spraying angle of divergence of each shower nozzle is 180 degree.

3. pressure-storage premix type water mist foam fire extinguishing apparatus for ships according to claim 1; It is characterized in that: said thin water smoke foam nozzle (6) is hemispherical; On the hemispherical sphere, be laid with 13 nozzles, the spraying angle of divergence 180 degree of thin water smoke foam nozzle (6).

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