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Valve structure with built-in valve seat of pre-acting alarm valve

A technology of alarm valve and preaction, applied in the direction of valve shell structure, valve device, valve operation/release device, etc., can solve the problems of complex preaction device, different fire valves, high production cost, etc., and achieve low manufacturing cost Effect

Pending Publication Date: 2020-06-19
GUANGDONG YONGQUAN VALVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, different scenarios have different requirements for fire valves. For example, special places such as libraries and archives need to alarm when the equipment detects a fire. The pre-action device required for the alarm is more complicated and the production cost is high. Including controllers with multiple detection devices and dedicated valves

Method used

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  • Valve structure with built-in valve seat of pre-acting alarm valve
  • Valve structure with built-in valve seat of pre-acting alarm valve
  • Valve structure with built-in valve seat of pre-acting alarm valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as Figure 1-3 Shown, a valve structure, including valve body 2, valve cover 3, diaphragm 1; said diaphragm 1 is installed in the cavity of valve body 2, and the diaphragm of diaphragm 1 is sandwiched in valve cover 3 and valve body 2 spaces, so that a control chamber 30 is formed between the diaphragm 1 and the valve cover 3; the spring for pushing the diaphragm 1 to move can be equipped with a disc spring on the diaphragm 1 or a coil spring between the diaphragm 1 and the valve cover 3, The valve 1 separates the water inlet 10 and the water outlet 20 . The working principle of this embodiment is: when water is injected into the control chamber 30 and the water inlet 10, due to the effect of water pressure and the pressure of the spring on the diaphragm 1, the diaphragm 1 is closed; when the water pressure is less than the elastic force of the spring When a fire occurs, the water outlet 20 releases pressure, and since the control chamber 30 communicates with the ...

Embodiment 2

[0034] Such as Figure 1-8 As shown, a valve structure with a built-in valve seat of a pre-action alarm valve includes: a valve body 2, a valve cover 3, a valve seat 4, and a diaphragm 1;

[0035] The valve body 2 is provided with an accommodating chamber, the accommodating chamber includes a water inlet 10, a water outlet 20, and a water flow hole 23 for connecting the water inlet 10 and the water outlet 20; the water flow hole 23 is embedded with a valve seat 4; the valve body 2 is provided with an early warning channel 22;

[0036] The valve 1 is arranged in the accommodation cavity, and is used to control the switch of the water flow hole 23;

[0037] The bottom of the flap 1 is provided with a sealing ring 13, and the sealing ring 13 abuts with the valve seat 4 to form a seal to realize the closing of the water flow hole 23; or the sealing ring 13 is separated from the valve seat 4, so that the water flow hole 23 Open;

[0038] The upper surface of the valve seat 4 is ...

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PUM

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Abstract

The invention discloses a valve structure with a built-in valve seat of a pre-acting alarm valve. The valve structure comprises a valve body, a valve cover, the valve seat and a membrane flap, a containing cavity is formed in the valve body and comprises a water inlet, a water outlet and a running water through hole which is used for communicating the water inlet with the water outlet; the valve seat is embedded in the running water through hole; an early warning channel is arranged on the valve body; the membrane flap is arranged in the containing cavity and used for controlling opening and closing of the running water through hole; a sealing ring is arranged at the bottom of the membrane flap; the sealing ring is abutted with the valve seat to form sealing, so that the closing of the running water through hole is realized; or the sealing ring is separated from the valve seat, so that the running water through hole is opened; the upper surface of the valve seat is a sealing surface; an early warning water flow hole is formed in the valve seat; and one opening of the early warning water flow hole is formed in the sealing face of the valve seat, and the other opening of the early warning water flow hole communicates with the early warning channel. The valve structure with the built-in valve seat of the pre-acting alarm valve has the advantages of being simple, reliable, and lowin manufacturing cost.

Description

technical field [0001] The invention relates to the related field of fire water valves; in particular, it relates to a valve structure with a built-in valve seat of a pre-action alarm valve. Background technique [0002] With the advancement of fire protection technology, the relevant requirements for valves for fire protection water are also increasing. The valve as shown in patent CN201520937247.6 generally includes a valve body, various function probes, a diaphragm, and a spring for pressing the diaphragm on the water inlet to seal the water inlet. However, different scenarios have different requirements for fire valves. For example, special places such as libraries and archives need to alarm when the equipment detects a fire. The pre-action device required for the alarm is more complicated and the production cost is high. It includes controllers with multiple detection devices and dedicated valves. Therefore, a pre-action valve with simple structure, reliable performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/32F16K1/36F16K1/42F16K1/46F16K27/02F16K31/126F16K37/00
CPCF16K1/00F16K1/32F16K1/36F16K1/42F16K1/46F16K1/465F16K27/02F16K31/1262F16K31/126F16K37/0091A62C35/68F16K31/1266F16K1/427F16K2200/402F16K39/026A62C35/605F16K37/0066
Inventor 陈炯亮霍达文区家显
Owner GUANGDONG YONGQUAN VALVE TECH