Gas hose flame arrester
A technology of gas hose and flame arrester, which is applied in fire rescue and other fields, can solve the problems of complex process flow and difficulty in mass production, and achieve the effects of simplified production process, low production cost and reduced production cost
Pending Publication Date: 2020-01-31
杨富云
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Problems solved by technology
[0007] Third, in view of the shortcomings of the existing flame arrester, which are complicated in manufacturing process and difficult to realize mass production, a flame arrester structure that can be easily produced in large quantities by using the existing processing technology is provided
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[0046] figure 1 and figure 2 In the process, first heat one end of the gas hose 6 to make it soften and expand, then put the flame arrester 1 coaxially with the gas hose 6, insert it into the gas hose 6, and cool it so that the gas hose 6 shrinks, and the flame arrester 1 The outer diameter of the shell 2 is slightly larger than the inner diameter of the gas hose 6 before heating, and the flame arrester 1 is inserted from one end of the gas hose 6 into the air inlet 11 or the gas outlet 12, so that the gas hose 6 after cooling The inner wall tightly tightens the outer wall of the shell 2 of the flame arrester 1 so that the flame arrester 1 does not slide in the gas hose 6. The spiral groove or straight groove 4 is composed of the shell 2 and the flame arrester core 3. The straight channel 15 is a gas channel, the gas source 13 is connected to the pressure reducing valve 9 of the gas tank, or the pressure reducing valve 10 of the gas pipeline, and the inlet end 11 of the gas ...
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The invention discloses a gas hose flame arrester, which comprises a shell sleeve (2) and a flame arresting core (3) and is characterized in that the shell sleeve (2) is cylindrical, the outer diameter of the shell sleeve is larger than the inner diameter of the gas hose (6), and the inner diameter of the shell sleeve is larger than the outer diameter of the flame arresting core (3); a cylinder with at least one spiral groove or straight groove (4) is on the outer surface of the flame arresting core (3); the cylinder just penetrates into the shell sleeve (2), the length of the cylinder is aligned with the shell sleeve (2), any position on the shell sleeve (2) is extruded, so that the shell sleeve (2) and the flame arresting core (3) are fixed integrally to form a spiral groove or a straight groove channel (15) for conveying the gas (7); the diameter of the spiral groove type or straight groove channel (15) is smaller than the critical diameter of the gas explosion; when the diameter ofa gas pipe is small to a certain limit value, the heat radiated to a pipe wall is great to the diameter of the gas channel that the flame cannot spread. The flame arrester can not only access gas (7), but also absolutely block a tempering flame (8) and prevent explosion, so the flame arrester is simple in structure, low in cost and easy mass production.
Description
technical field [0001] This invention relates to flame arresters which allow the passage of gases but not flames or blast waves, and more particularly to flame arresters for use in gas hoses. Background technique [0002] Chinese Patent No. ZL201220392999.5 "Gas Pipeline Explosion-Proof Flame Arrester", the disclosed gas pipeline explosion-proof flame arrester has a pipeline main body, and is characterized in that: a gas supply interface for connecting the gas pipeline is provided on the side wall of the pipeline main body. There is a layer of safety net on the gas supply interface, and the safety net is made of good thermoplastic plastic, which is a mesh structure with through holes, and the other side of the main body of the pipeline is provided with an end cover to close the flame arrester. The fire-resistant core is made of corrugated steel strips, and a through hole with a triangular cross section is arranged on the fire-resistant core. [0003] It can be seen from the...
Claims
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IPC IPC(8): A62C4/02
CPCA62C4/02
Inventor 杨富云
Owner 杨富云