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Gas valve and flashback preventing stove

A gas valve and gas technology, applied in the field of stoves, can solve problems such as fire and backfire combustion, and achieve the effect of preventing fire and gas backfire combustion.

Active Publication Date: 2018-05-08
HUBEI ZHONGRUITIANHENG ENERGY SAVING TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now many energy-saving cookers, especially semi-premixed commercial energy-saving cookers, when the blower pipe pressure drops to a certain value, the premixed gas will be backfired and burnt, causing a fire in severe cases

Method used

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Embodiment Construction

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0016] Such as figure 1 As shown, the gas valve 5 of the present invention includes a valve body 51 , a valve cover 52 , a return spring 53 , a first piston 54 , a second piston 55 and a third piston 58 .

[0017] The top of the valve body 51 is provided with an opening, and the valve cover 52 is provided on the opening.

[0018] The valve body 51 is provided with parallel first piston passage 56 and second piston passage ...

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Abstract

The invention provides a gas valve and a flashback preventing stove. The gas valve is arranged, and air pressure in an air inlet channel is adopted as a precondition that fuel gas passes through a gaschannel. When the air pressure reaches a set value, a first piston and a third piston are driven. Under air pressure driving, a second piston links accordingly, the air inlet channel and the gas channel are opened, and fresh air blown in by an oxygenation fan and the fuel gas enter a combustor participate in combustion reactions. When the air pressure is too low, the first piston and the third piston are reset under the action of the elastic force of a reset spring, the second piston links accordingly, and the air inlet channel and the gas channel are gradually closed. In the process, the airpressure in the air inlet channel is kept constant with fuel gas pressure in the gas channel all the time, fuel gas flashback combustion caused by the too low air pressure in the air inlet channel isavoided, and fires are prevented.

Description

technical field [0001] The invention relates to the technical field of cookers, in particular to a gas valve and a backfire prevention cooker. Background technique [0002] Nowadays, many energy-saving cookers, especially semi-premixed commercial energy-saving cookers, when the blower pipeline pressure drops to a certain value, the premixed gas will be backfired and burnt, causing a fire in severe cases. Contents of the invention [0003] In view of this, the present invention proposes a gas valve and an anti-tempering cooker that can effectively prevent gas flashback from developing a fire. [0004] Technical scheme of the present invention is realized like this: [0005] On the one hand, the present invention provides a gas valve, which includes a valve body, a valve cover, a return spring, a first piston, a second piston and a third piston, the valve cover is arranged on the valve body, and the valve body is provided with parallel The first piston channel and the seco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/04F16K11/10F24C3/12
CPCF16K11/105F16K17/0473F24C3/12
Inventor 张跃虎
Owner HUBEI ZHONGRUITIANHENG ENERGY SAVING TECH DEV
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