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.