Mechanically-pumping compressed gas foam fire-extinguishing method

A compressed gas and foam fire extinguishing technology, applied in fire rescue and other directions, can solve the problems of complex control system, inaccurate measurement of mixing ratio, high energy consumption, etc., and achieve the effects of accurate mixing ratio, easy operation and strong adaptability

Inactive Publication Date: 2017-11-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problem of inaccurate measurement of mixing ratio, complicated con

Method used

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  • Mechanically-pumping compressed gas foam fire-extinguishing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] like figure 1 As shown, a mechanically pumped compressed gas foam fire extinguishing method includes an atmospheric pressure foam liquid storage tank, a filling port, a discharge port, a fire pressure water source, a flushing and debugging pipeline, a water turbine, a foam generator, a foam delivery pipeline, and a foam spray gun , foam liquid pump, water-foam liquid selection valve, the lower part of the normal-pressure foam liquid storage tank is provided with a filling port, a discharge port, a water-foam liquid selection valve, and the water-foam liquid selection valve is connected with the flushing debugging pipeline and the foam liquid pump , the water turbine is connected with the foam liquid pump and the fire pressure water source, the outlet of the water turbine is mixed with the outlet pipeline of the foam liquid pump and then connected with the inlet of the foam generator, and the outlet of the foam generator is connected with the foam spray gun through the fo...

Embodiment 2

[0021] at 10m 3 The raw liquid storage tank is filled with 3% foam fire extinguishing agent, the inlet and outlet diameters of the foam proportional mixer and the foam generator are both DN200, and the compressed gas is composed of a group of 40L compressed air cylinders with a pressure of 10MPa, which are collected after decompression flow tube.

[0022] The 3% foam fire extinguishing agent enters the raw liquid storage tank 1 from the filling port 2, starts the water supply pump, and the water from the fire-fighting pressure water source 4 enters the water turbine 6, and the water turbine 6 drives the foam liquid pump 12 to rotate, and the water-foam liquid selection valve 13 is opened. When the foam liquid is opened, the fire extinguishing agent enters the foam liquid pump 12. Driven by the water turbine 6, the fire extinguishing agent mixes with water and enters the foam generator 8. The air source 11 is turned on and collected in the collecting pipe after being decompress...

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Abstract

The invention relates to a mechanically-pumping compressed gas foam fire-extinguishing method, and mainly solves the problems of inaccurate mixing ratio measurement, complex control system and high energy consumption in the prior art. The problem is solved well through adopting the technical scheme that the mechanically-pumping compressed gas foam fire-extinguishing method is adopted, fire is extinguished through a mechanically-pumping compressed gas foam fire-extinguishing device, and the mechanically-pumping compressed gas foam fire-extinguishing device comprises a normal-pressure foam concentrate storage tank, a charge port, a discharge port, a fire-fighting pressure water source, a washing debugging pipeline, a water turbine, a foam generator, a foam conveying pipeline, a foam spray gun, a foam concentrate pump and a water-foam concentrate selection valve. The mechanically-pumping compressed gas foam fire-extinguishing method can be used in fire-fighting fire extinguishment.

Description

technical field [0001] The invention relates to a mechanically pumped compressed gas foam fire extinguishing method. Background technique [0002] When extinguishing gas, liquid and solid fires, foam fire extinguishing systems are commonly used, mainly including fixed, semi-fixed and mobile foam fire extinguishing systems. Among them, the foam proportional mixing device is the central axis area of ​​the fire extinguishing system. Whether the ratio is accurate and the operation is smooth is related to the effect of on-site fire fighting. There are two kinds of proportional mixing devices commonly used at present. One is a pressure foam proportional mixing device. The disadvantage is that it cannot continuously provide foam stock solution, the capsule is prone to aging and damage, and the pressure storage tank is small and the production cost is high. The other is a balanced pressure foam proportional mixing device, which occupies a large area, and the balance valve has certa...

Claims

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Application Information

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IPC IPC(8): A62C5/02A62C31/12
CPCA62C5/02A62C31/12
Inventor 谈龙妹蒋婷婷王林尚祖政吴京峰郎需庆牟小冬王俊杨
Owner CHINA PETROLEUM & CHEM CORP
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