Double-wall corrugated pipe

Abstract

The invention relates to the field of corrugated pipes, in particular to a double-wall corrugated pipe. The double-wall corrugated pipe comprises a pipe body, pipe casings, a first sleeve, a first connection plate, a second sleeve and a second connection plate, wherein the pipe body is formed by an inner pipe and an outer pipe. Two sleeves which can be butted against each other are arranged at twoends of a traditional corrugated pipe separately, so that splicing is achieved by using two connection plates; and meanwhile, the two sleeves have airtightness and disassembly and assembly performance, so that the double-wall corrugated pipe is convenient to disassemble and assemble and convenient to replace, maintain and clean, the condition that the corrugated pipe is more durable is ensured and the operation performance is improved. The condition that the transverse plane of the whole corrugated pipe has higher compression resistance is ensured and the damage from corrosive liquid infection can be prevented through arranging a compressive layer between an outer pipe and an inner pipe and arranging an anti-corrosion layer on an outer wall of the outer pipe; meanwhile, the condition thatheat energy, produced by penetrating components, to an optical fiber can be removed as soon as possible is ensured through arranging a spiral cooling pipe with a refrigerant inside the pipe, therebyreducing the effect of high temperature on the optical fiber; and furthermore, the pipe casings which are set in a rectangular form are convenient to stack and not easy to roll.

Description

technical field [0001] The invention relates to the field of bellows, in particular to a double-wall bellows. Background technique [0002] Bellows is used as a tubular elastic sensitive element connected by folded corrugated sheets along the direction of folding and expansion. When used in instruments and meters, it is used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The measuring element is protected, but the existing double-wall corrugated pipes are inconvenient to splice each other. They are only connected through the corresponding flanges, the sealing effect is not good, and it is not easy to disassemble, making it difficult to replace or clean. Anti-compression and anti-corrosion effect, easily affected by external factors, and its own heat removal function is not good enough. Contents of the invention [0003] Aiming at the problems in the prior art, the invention provides a double-wall corrugated pipe. ...

AI Technical Summary

Problems solved by technology

[0002] Bellows is used as a tubular elastic sensitive element connected by folded corrugated sheets along the direction of folding and expansion. When used in instruments and meters, it is used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The measuring element is protected, but the existing double-wall corrugated pipes are inconvenient to splice each other. They are only connected through the corresponding flanges, the sealing effect is not good, and it is not easy to disassemble, making it difficult to replace or clean. Anti-compression and anti-corrosion effect, easily affected by external factors, and its own heat removal function is not good enough

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