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Automatic backfire recovery device

A backfire and automatic technology, applied in the direction of gas flame welding equipment, metal processing equipment, welding equipment, etc., can solve the problem that the Brown gas cannot be continuously supplied to the Brown gas delivery pipe, etc.

Active Publication Date: 2022-06-03
E & E CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is made in order to solve the prior art problem that the Brown gas cannot be continuously supplied to the Brown gas delivery pipe when a backfire accident occurs in the prior art

Method used

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Embodiment Construction

[0018] Hereinafter, the disclosure of the present invention will be described in more detail with reference to the accompanying drawings.

[0019] figure 1 It is a figure which shows the whole structure of the automatic backfire recovery apparatus based on this invention.

[0020] The two branch pipes 1 and 2 branch off from the delivery pipe 3 which delivers and supplies the Brownian gas. Brown gas passes through the duct 3 in figure 1 It is delivered from left to right in the middle, and the delivered Brown gas is supplied to the two branch pipes 1 and 2, respectively. The right ends of the two branch pipes 1 and 2 are again joined and connected to the delivery pipe 3 . Due to this structure, the two branch pipes 1 and 2 have a structure in which they are rejoined after branching from the middle of the conveying pipe 3 . and figure 1 Unlike the configuration shown, the delivery pipe 3 may be constructed without the delivery pipe 3 present at the downstream ends of the t...

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PUM

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Abstract

The invention discloses an automatic backfire recovery device. The valve and the backfire eliminator are installed in each of two or more branch pipes branched from the Brown gas delivery pipe. And the flame eliminator, the backfire detection sensor and the backfire prevention device are arranged in the backfire eliminator. The valve and the backfire sensor are connected to a controller. Normally, only one branch pipe is normally used, and a valve connected to the other branch pipe is closed. When a backfire phenomenon occurs, the backfire detection sensor detects backfire and sends a backfire signal to the controller so as to extinguish backfire flames. In this case, the valve connected with the branch pipe in use is closed while the valve connected with the closed branch pipe is opened to supply the Brown gas. Accordingly, continuous operation can be performed without stopping the operation of cutting the substrate.

Description

technical field [0001] The present invention relates to automatic backfire recovery devices for substrate cutters and burners. Background technique [0002] In the field of steel cutting, by supplying Brownian gas (which is a mixed gas of hydrogen and oxygen obtained by electrolysis of water) to a cutting head and igniting the Brownian gas, the flame of the Brownian gas is used to cut steel. In this process, it is necessary to balance the burning rate of Brown gas and the supply speed of Brown gas. During the cutting process, the cutting head may be blocked by external shocks or the like. As a result, the amount of Brownian gas required for the combustion cannot be supplied, and a flashback phenomenon in which the combustion of the Brownian gas propagates backward in the Brownian gas delivery pipe may occur. [0003] In the event of a backfire, the method currently used is to immediately shut down the delivery line. When the supply of Brownian gas to the delivery pipe is ...

Claims

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Application Information

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IPC IPC(8): B23K7/10B23K7/00
CPCB23K7/10B23K7/00
Inventor 玄长洙丁良淑
Owner E & E CO LTD
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