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Pressure balancing device for compressed air foam system

A technology of compressed air foam and system pressure, used in fire rescue and other directions

Active Publication Date: 2018-11-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few researches on pressure balance valves in China, especially for mechanical balance valves, which are basically imported from abroad.

Method used

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  • Pressure balancing device for compressed air foam system
  • Pressure balancing device for compressed air foam system
  • Pressure balancing device for compressed air foam system

Examples

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Embodiment Construction

[0012] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0013] combine figure 1 , image 3 , Figure 4A and Figure 4B , The present invention provides a pressure balance device for a compressed air foam system, which includes an air intake regulating valve 1 , a pressure balance valve 2 and an air compressor 3 . The intake regulating valve 1 is connected with the pressure balance valve 2 through an air pipeline. The air i...

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Abstract

The invention relates to a pressure balancing device for a compressed air foam system. The pressure balancing device comprises a fed air adjustment valve, a pressure balancing valve and an air compressor. The fed air adjustment valve is connected between an air collection opening of the compressed air foam system and the air compressor, and the fed air adjustment valve is connected with the pressure balancing valve through an air pipe. The pressure balancing device is characterized in that the fed air adjustment valve comprises a first valve body shell and a piston which is arranged inside thefirst valve body shell and can move up and down, and the airflow amount of the atmosphere entering the air compressor is controlled through vertical movement of the piston; and the pressure balancingvalve comprises a second valve body shell and a rigid piston which is arranged in the second valve body shell and can move up and down. According to the pressure balancing device for the compressed air foam system, the air pressure of the system can be effectively adjusted through the mechanical pressure balancing valve.

Description

technical field [0001] The invention relates to a pressure balance device for a compressed air foam system, belonging to the technical field of compressed air foam fire extinguishing devices. Background technique [0002] With the rapid development of social economy and the acceleration of industrialization and urbanization, fire hazards and disaster-causing factors are constantly deriving, especially inflammable and explosive units, high-rise buildings, underground projects, high-density and large-space public gathering places, To deal with complex and dangerous fire situations, the fire department mostly uses compressed air foam system fire trucks, and its pressure balance system device is indispensable to ensure the efficient operation of the fire truck. Because the balance device is used to adjust the gas-liquid pressure balance, if the gas-liquid pressure is not balanced, it will lead to problems such as uneven gas-liquid mixing, pressure suppression, etc., which will m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C5/02A62C31/12
CPCA62C5/02A62C31/12
Inventor 何勇安警彦顾嘉涛马晓建韩强费胜巍
Owner DONGHUA UNIV
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