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Pressure storage type compressed gas foam extinguishing system

A compressed gas and foam fire extinguishing technology, which is applied in fire rescue and other fields, can solve the problems that the foam liquid cannot be fully dispersed and mixed, affects the overall operation of the fire extinguishing system, and the pressure of gas and liquid is unstable, and achieves wide coverage and easy operation. Convenience and quick fire extinguishing effect

Inactive Publication Date: 2016-02-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system is prone to gas and liquid pressure instability, the inhaled foam liquid cannot be fully dispersed and mixed, and when the liquid path pressure is greater than the gas path pressure, the active gas supply will lose its effect, etc.
At the same time, due to the large number of valves and controllers, the problem of running, emitting, dripping and leaking is prone to occur, which affects the overall operation of the fire extinguishing system

Method used

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  • Pressure storage type compressed gas foam extinguishing system
  • Pressure storage type compressed gas foam extinguishing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 and figure 2 As shown, a pressure-storage compressed gas foam fire extinguishing system includes a pressure liquid storage tank 4 and a foam generator 5, and a walking wheel 11 is arranged under the pressure liquid storage tank 4, and the pressure liquid storage tank 4 is filled with a foam fire extinguishing agent Mixed liquid 14 and compressed gas, the top of the pressure storage tank 4 is provided with a liquid inlet pipe and a pressure gauge 7, the liquid inlet pipe 15 is provided with a flow control valve 8, the compressed gas is air, nitrogen or inert gas, the pressure storage The volume of liquid tank 4 is 10m 3 , the quality of filling the foam fire extinguishing agent mixture 14 is 5000kg, the volume of the foam fire extinguishing agent mixture 14 accounts for 50% of the volume of the pressure liquid storage tank 4, and the foam fire extinguishing agent mixture 14 is filled in the pressure liquid storage tank 4 The filling pressure is 1.2MPa...

Embodiment 2

[0032] This embodiment is basically the same as Embodiment 1, the only difference is that the quality of the foam fire extinguishing agent mixture 14 filled is 6000kg, and the volume of the foam fire extinguishing agent mixture 14 accounts for 60% of the volume of the pressure liquid storage tank 4. The filling pressure of the foam fire extinguishing agent mixture 14 filled in the pressure liquid storage tank 4 is 1.3MPa.

Embodiment 3

[0034] This embodiment is basically the same as Embodiment 1, the only difference is that the quality of the foam fire extinguishing agent mixture 14 filled is 7000kg, and the volume of the foam fire extinguishing agent mixture 14 accounts for 70% of the volume of the pressure liquid storage tank 4. The filling pressure of the foam fire extinguishing agent mixture 14 filled in the pressure liquid storage tank 4 is 1.5MPa.

[0035] The principles of embodiments 1 to 3 are the same. When fire extinguishing or coverage is required, the one-way outlet valve 9 is opened, and the foam fire extinguishing agent mixture 14 enters the foam generator 5 through the suction pipe 10, and the foam fire extinguishing agent mixture 14 passes through the liquid inlet. The mouth is sprayed onto the spoiler to form a mist, and the compressed gas enters the foam generator 5 through the air inlet, and fully collides with the mist droplets in the foam generator 5 to form energetic foam. The outlet v...

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Abstract

The invention discloses a pressure storage type compressed gas foam extinguishing system which comprises a pressure liquid storage tank and a foam generator. The pressure liquid storage tank is filled with foam extinguishing agent mixed liquid and compressed gas. The foam generator is arranged in the pressure liquid storage tank and the foam generator is located above the foam extinguishing agent mixed liquid. A gas inflow hole, a liquid inlet and a turbulator are arranged on the foam generator. The liquid inlet is communicated with a liquid suction pipe arranged at the lower end of the foam generator. The bottom of the liquid suction pipe is located on the lower portion of the pressure liquid storage tank. A foam outlet pipe connected with the foam generator is arranged at the top end of the pressure liquid storage tank. A foam delivery pipe is arranged on one side of the pressure liquid storage tank and communicated with the foam outlet pipe. A foam gun is arranged at the tail end of the foam delivery pipe. The pressure storage type compressed gas foam extinguishing system can generate even, exquisite and stable kinetic energy foam without sucking air from the outside and is high in extinguishing speed, wide in covering range and large in jet distance.

Description

technical field [0001] The invention relates to a foam fire extinguishing system, in particular to a stored pressure compressed gas foam fire extinguishing system. Background technique [0002] Existing foam fire extinguishing systems usually use the suction method (negative pressure type) and adopt the principle of Venturi jet foaming. Due to the uneven suction of surrounding air, the foaming multiple is low, the foam residence time is short, and the coverage and fire extinguishing ability are poor. [0003] In order to overcome the defects of this negative pressure foam fire extinguishing system, a utility model patent with application number 201520179777.9 discloses a foam fire extinguishing system, including a compressed air tank, a gas-liquid mixer, a liquid storage tank, a high-pressure water pipe, a spray gun, etc.; One way of the compressed air port is connected to the air inlet of the mixer through the inlet solenoid valve, and the other is connected to the inlet on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C13/64
CPCA62C13/64
Inventor 谈龙妹吴京峰尚祖正邹兵
Owner CHINA PETROLEUM & CHEM CORP
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