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Foam fire extinguishing system

A technology of foam fire extinguishing and foam, which is applied in the field of fire extinguishing and can solve problems such as ineffective fire extinguishing

Inactive Publication Date: 2017-05-31
广东鹰穗消防设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water spray control valve group is mainly composed of a signal butterfly valve on the water supply side, a deluge valve, a signal butterfly valve on the system side, and a box. It can be opened immediately after receiving the start signal from the fire alarm controller to provide pressure water to the pipe network and pass through the tunnel. The special water mist nozzle sprays water mist into the tunnel, which can only control the fire in the tunnel, but cannot effectively extinguish the fire

Method used

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Embodiment Construction

[0031]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] Such as Figure 1 to Figure 5 As shown, the preferred embodiment of the present invention is a foam fire extinguishing system, which includes a foam liquid storage tank 100, a foam liquid delivery main pipe 200, a fire fighting water source 300, a fire fighting water delivery main pipe 400, a mixed liquid delivery main pipe 500, at least one foam spray Control valve group box 600 and at least one fire extinguishing device 700, the foam spray control valve gro...

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Abstract

The invention provides a foam fire extinguishing system. A proportional mixer is installed on the outlet end of a deluge valve, the foam liquid input end of the proportional mixer is connected with a foam liquid inlet pipe, fire water is pumped from a fire water source by a fire pump and is controlled to be on or off by the deluge valve, and foam liquid is pumped from a foam liquid tank by a foam liquid pump and is controlled to be on or off by a foam liquid electromagnetic valve. When a fire occurs, the deluge valve and the foam liquid electromagnetic valve can be quickly opened after receiving starting electrical signals which are sent by a fire extinguishing controller, and aqueous film-forming foam mixed liquid is formed by the fire water and the foam liquid through the proportional mixer and is conveyed to a pipe network through a mixed liquid outlet pipe, so that a certain proportion of the aqueous film-forming foam mixed liquid is supplied to the pipe network of the system. The foam fire extinguishing system has the advantages of compact structure and wide applicable pressure and flow range, when the fire occurs, the foam fire extinguishing system can be quickly started, and the aqueous film-forming foam mixed liquid is supplied to the pipe network, so that foam is sprayed to a protected area through a special foam nozzle so as to extinguish the fire.

Description

technical field [0001] The invention belongs to the field of fire extinguishing, in particular to a foam fire extinguishing system. Background technique [0002] Tunnel fires are mainly Class B fires such as gasoline, Class A fires such as rubber, and Class AB mixed fires. In the past, the fixed fire extinguishing system used in the tunnel was a water spray fire extinguishing system, and a water spray control valve group was installed in the tunnel. The water spray control valve group is mainly composed of a signal butterfly valve on the water supply side, a deluge valve, a signal butterfly valve on the system side, and a box. It can be opened immediately after receiving the start signal from the fire alarm controller to provide pressure water to the pipe network and pass through the tunnel. The special water mist nozzle sprays water mist into the tunnel, which can only control the fire in the tunnel, but cannot effectively extinguish the fire. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C35/58A62C35/68A62C31/12
CPCA62C31/12A62C35/58A62C35/68
Inventor 游伟
Owner 广东鹰穗消防设备有限公司
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