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Plate-type flame arrester of which microchannels can achieve periodic backdrawing and outstretching

A periodic and micro-channel technology, which is applied in fire rescue and other fields, can solve the problems of large fluid resistance and achieve the effects of small fluid resistance, sufficient cooling effect and prolonged cleaning cycle

Inactive Publication Date: 2020-06-19
CHANGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problem that the corrugated plate flame arrester with triangular microchannels is mostly used in the flame arrester in the related art, and its fluid resistance is large, and it needs to be cleaned in a short period of time. For firearms, there are no sharp or right angles in the channel, and the fluid resistance is small when the gas passes through; the micro-channel is wavy and smooth, so it is not easy to deposit ashes after gas combustion, and the cleaning cycle can be extended

Method used

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  • Plate-type flame arrester of which microchannels can achieve periodic backdrawing and outstretching
  • Plate-type flame arrester of which microchannels can achieve periodic backdrawing and outstretching

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Such as Figures 1 to 2 As shown, a plate type flame arrester with microchannels periodically shrinking and expanding, including a cylinder and a fire arresting core 3, the cylinder includes a first cylinder 1 and a second cylinder 2, and the first cylinder 1 is connected by a flange Ⅱ5 is connected to flange Ⅲ6, specifically, flange Ⅱ5 and flange Ⅲ6 are sealed and connected through bolts and nuts, and gaskets are also provided between the bolts and nuts; the other end of the first cylinder 1 is also provided with a flange Ⅰ4, the other end of the second cylinder 5 is also provided with a flange IV7; the fire retardant core 3 is arranged in the cylinder, and the two ends of the fire retardant core 3 are respectively provided with a first support plate 8 and a second support plate 9, and the flange The first cylinder expansion cavity is formed between I4 and the first support plate 8, and the second cylinder expansion cavity is formed between the flange IV7 and the secon...

Embodiment 2

[0022] The difference from Example 1 is that in this example, the pitch P range of the stainless steel plate is 20 mm, and the contraction ratio a=L 1 / L 2 , and the contraction-expansion ratio a is 20, the range of rib height e is 5mm, the distance between the microchannels formed by the stainless steel plate is 5-20mm, and the expansion angles of the expansion cavity of the first cylinder and the expansion cavity of the second cylinder are both 10° .

Embodiment 3

[0024] Different from Example 1, in this example, the pitch P range of the stainless steel plate is 12mm, and the contraction ratio a=L 1 / L 2 , and the shrinkage-expansion ratio a is 10, the range of rib height e is 1.5mm, the distance between the microchannels formed by the stainless steel plate is 0.5-1.5mm, and the expansion angles of the expansion chamber of the first cylinder and the expansion chamber of the second cylinder are 60°.

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Abstract

The invention relates to the technical field of flame arresters, in particular to a plate-type flame arrester of which microchannels can achieve periodic backdrawing and outstretching. The plate-typeflame arrester comprises a cylinder and a flame arresting core, wherein the cylinder comprises a first cylinder body and a second cylinder body, the first cylinder body and the second cylinder body are connected through a flange II and a flange III, the other end of the first cylinder body is also provided with a flange I, and the other end of the second cylinder body is furthermore provided witha flange IV; the flame arresting core is arranged in the cylinder, the two ends of the flame arresting core are provided with a first supporting plate and a second supporting plate respectively, a first cylinder outstretching cavity is formed between the flange I and the first supporting plate, and a second cylinder outstretching cavity is formed by the flange IV and the second supporting plate; and the flame arresting core is formed by combining a plurality of stainless steel plates of a wavy structure, each microchannel is formed between every two stainless steel plates, and a periodic backdrawing and outstretching structure is formed by the wave peak and wave trough between every two adjacent stainless steel plates. By means of the plate-type flame arrester, fluid is under low resistance, and ash deposition is unlikely to occur.

Description

technical field [0001] The invention relates to the technical field of flame arresters, in particular to a plate-type flame arrester in which microchannels shrink and expand periodically. Background technique [0002] Flame arresters are usually installed in flammable and explosive gas pipelines or at the inlet and outlet of equipment. It is a safety device that prevents the passage of flames and allows gas to pass through. Existing flame arresters mostly use corrugated plate flame arresters with triangular microchannels, which have a good flame arresting effect, but there are acute or right angles in the channels, resulting in large fluid resistance; in addition, corrugated plate microchannels with a triangular structure are easy to deposit ashes after gas combustion , Therefore, it needs to be cleaned in a short time. Therefore, it is urgent to develop a micro-channel flame arrester with small fluid resistance and not easy to deposit ash. Contents of the invention [00...

Claims

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Application Information

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IPC IPC(8): A62C4/00
CPCA62C4/00
Inventor 周雅娟陆佳敏张玉轩张井平蒋夫花曹桂萍刘宝亮丁琳琳
Owner CHANGZHOU INST OF TECH
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