Foam\water mixing balanced valve

A balance valve, horizontal technology, applied in the direction of balance valve, valve detail, multi-way valve, etc., can solve the problems of narrow adjustment range and poor adaptability

Inactive Publication Date: 2011-02-02
XIAN XINZHU FIRE & RESCUE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the balanced foam mixing device on the market can achieve the purpose of pressure balance and flow control, but its b...

Method used

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  • Foam\water mixing balanced valve
  • Foam\water mixing balanced valve
  • Foam\water mixing balanced valve

Examples

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Embodiment Construction

[0015] refer to figure 1 , figure 2 , a foam / water mixing balance valve of the present invention mainly includes a valve body, a valve core 4, a valve stem 5 and a balance cavity. Wherein, the valve body is a typical three-way valve body, which has a horizontal inlet pipe 1, a horizontal outlet pipe 2 and a vertical pipe 3, and a valve core 4 and a valve stem 5 for fixing the valve core 4 are arranged in the vertical pipe 3, and the valve core 4 includes a vertically connected flashboard 402 and a piston 401, the flashboard 402 is close to the horizontal outlet pipe 2, and the piston 401 is in sliding fit with the vertical pipe 3. Fill the foam liquid into the horizontal inlet pipe 1, the piston 401 moves the valve stem 5 upward under the pressure of the foam liquid, and opens the gate 402, and when the gate 402 is opened, the pressure of the piston 401 decreases, and the gate 402 opens again. There is an adjustment tendency for the opening to decrease, therefore, the spool...

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PUM

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Abstract

The invention relates to the field of fire fighting, and discloses a foam\water mixing balanced valve. The balanced valve comprises a valve body, wherein the valve body is provided with a horizontal inlet pipe, a horizontal outlet pipe and a vertical pipe, and a valve core and a valve rod for fixing the valve core are arranged in the vertical pipe. The balanced valve is characterized in that: the upper part of the vertical pipe is provided with a balanced cavity which consists of a lower cover and an upper cover, and a pressure regulation diaphragm is arranged between the lower cover and the upper cover to divide the balanced cavity into an upper cavity and a lower cavity; the lower cavity is communicated with the horizontal outlet pipe through a pipeline, and the upper cover is provided with a water inflow interface communicated with the upper cavity; and the valve rod slides up and down, penetrates the lower cover, and then is fixed with the pressure regulation diaphragm.

Description

technical field [0001] The invention relates to the field of fire fighting, in particular to a foam / water mixing balance valve. Background technique [0002] With the rapid development of the national economy, there are more and more new construction, expansion and reconstruction projects in petroleum, chemical industry, airports, ships, oil platforms, power stations and tunnels, and the scale of fire extinguishing systems is also increasing. The supply source of liquid puts forward more requirements, and the limited supply of foam fire extinguishing agent of the traditional storage tank pressure type foam liquid proportional mixing device has become increasingly unsuitable for the requirements of modern large-scale foam fire protection projects. [0003] At present, the balanced foam mixing device on the market can achieve the purpose of pressure balance and flow control, but its balance valve is mainly used for storage tanks, which is internally automatically adjusted, wit...

Claims

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Application Information

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IPC IPC(8): F16K27/00F16K17/30F16K11/065A62C5/02
Inventor 王虎儒窦开端
Owner XIAN XINZHU FIRE & RESCUE EQUIP
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