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Fireproof check valve for fuel gas exhaust channel

A check valve and flue technology, applied in control valve, safety valve, balance valve and other directions, can solve the problems of low economic benefit, low production efficiency, complex structure, etc., and achieve good economic benefit, low manufacturing cost and simple process Effect

Pending Publication Date: 2019-10-22
纪呈孟
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] According to national standards, when there is a fire in the room or a public flue, the check valve should be closed. In the prior art, there are two ways to achieve this technical purpose. One is to connect two check valves. One way is complex in structure, which causes the problem of low production efficiency. The other is to install temperature sensors on both sides of the valve plate to achieve the technical purpose in an automated way, but this kind of technical means is expensive and low in economic benefits. Therefore, it is necessary A new check valve

Method used

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  • Fireproof check valve for fuel gas exhaust channel
  • Fireproof check valve for fuel gas exhaust channel
  • Fireproof check valve for fuel gas exhaust channel

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Embodiment approach

[0033] When no fire occurs, the heat conduction fusing mechanism 9 is connected to the pressure rod 51, the disc spring 55 is in a stretched state, and the locking rod 53 rotates under the impact force of the smoke and the action of the hinge support 52;

[0034] When there is a fire in the room, the heat conduction fusing mechanism 9 transmits the fire temperature through the temperature sensing hole 7, and the solder joint between the heat conduction fusing mechanism 9 and the locking actuator 5 is fused, and the pressure rod 51 enters under the elastic force of the disc spring 55. In the card slot of the locking rod 53, and then press the valve plate 2;

[0035] When the public exhaust flue catches fire, the heat conduction fusing mechanism 9 directly senses the temperature, and the solder joint between the heat conduction fusing mechanism 9 and the locking actuator 5 is fused, and the pressure rod 51 enters the locking mechanism under the elastic force of the disc spring 55...

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Abstract

The invention discloses a fireproof check valve for a fuel gas exhaust channel. The fireproof check valve comprises a valve body, a valve plate, a gas inlet connector, a flow guide cover, a locking executing mechanism and an exhaust port; and the fireproof check valve further comprises a heat conduction fusing mechanism capable of sensing temperature in a gas inlet direction and an exhaust direction of the valve body. The fireproof check valve for the fuel gas exhaust channel has the advantages of being simple in structure, safe to use, low in manufacturing cost, simple in process, good in economic benefit and suitable for large-scale popularization in the market.

Description

technical field [0001] The invention relates to the technical field of residential exhaust duct check valves, in particular to a fire prevention check valve for smoke exhaust ducts. Background technique [0002] According to national standards, when there is a fire in the room or a public flue, the check valve should be closed. In the prior art, there are two ways to achieve this technical purpose. One is to connect two check valves. One way is complex in structure, which causes the problem of low production efficiency. The other is to install temperature sensors on both sides of the valve plate to achieve the technical purpose in an automated way. However, this technical means is expensive and has low economic benefits. Therefore, it is necessary to A new check valve. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide a fire prevention check valve for the exhaust gas channel, which has the advantages of simple structure...

Claims

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Application Information

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IPC IPC(8): F16K15/03F16K17/38F16K17/40
CPCF16K15/03F16K17/386F16K17/40
Inventor 纪呈孟
Owner 纪呈孟