Prefabricated spiral phenolic aldehyde insulation tube and its production method

A technology of phenolic heat preservation and manufacturing method, which is applied in the direction of pipes, rigid pipes, pipes/pipe joints/pipe fittings, etc. It can solve the problems of easy deformation and poor heat preservation performance, and achieve good heat preservation, good mechanical strength and simple preparation process.

Inactive Publication Date: 2007-10-17
厦门高特高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the insulation pipe is composed of a pipe body and an insulation layer, and its disadvantage is that the insulation performance is poor and it is easy to deform

Method used

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  • Prefabricated spiral phenolic aldehyde insulation tube and its production method
  • Prefabricated spiral phenolic aldehyde insulation tube and its production method
  • Prefabricated spiral phenolic aldehyde insulation tube and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: Referring to Figures 1-5, the prefabricated spiral phenolic insulation pipe is a three-layer composite pipe, which is provided with an inner pipe 1 , an outer pipe 2 and an interlayer 3 . The inner pipe 1 is a galvanized pipe or a seamless steel pipe. The outer pipe 2 is a galvanized iron strip spiral pipe, and the galvanized iron strip spiral pipe is formed by spiral processing of the galvanized iron strip. The interlayer 3 between the inner pipe 1 and the outer pipe 2 is an insulation layer, and the insulation layer is a phenolic foam insulation layer formed by direct foaming of phenolic resin. The outer diameter of the inner pipe is 22mm, the thickness of the interlayer insulation layer is 20mm, and the thickness of the outer pipe wall is 0.4mm. The phenolic foam of the phenolic foam insulation layer is composed of phenolic resin, flame retardant, modifier, surfactant, curing agent and foaming agent, flame retardant, modifier, surfactant, curing agent ...

Embodiment 2

[0021] Embodiment 2: Similar to Embodiment 1, the inner pipe of the prefabricated spiral phenolic insulation pipe is a PVC pipe or a PU pipe, and the outer pipe is a spiral pipe with a color steel strip, and the spiral pipe with a color steel strip is formed by spiral processing of a color steel strip. The outer diameter of the inner pipe is 100mm, the thickness of the interlayer insulation layer is 100mm, and the thickness of the outer pipe wall is 1.0mm. The phenolic foam of the phenolic foam insulation layer is composed of phenolic resin, flame retardant, modifier, surfactant, curing agent and foaming agent, flame retardant, modifier, surfactant, curing agent and foaming agent respectively Using antimony trioxide, ethylene glycol, Tween 60, hydrochloric acid and petroleum ether, the content of phenolic resin, flame retardant, modifier, surfactant, curing agent and foaming agent is 100% of phenolic resin by mass ratio, Antimony trioxide 2, ethylene glycol 6.5, Tween 60 2.5, ...

Embodiment 3

[0022] Embodiment 3: Similar to Embodiment 1, the inner pipe of the prefabricated spiral phenolic insulation pipe is a stainless steel pipe or an aluminum alloy pipe. The outer tube is an aluminum strip spiral tube, and the aluminum strip spiral tube is formed by spiral processing of the aluminum strip. The outer diameter of the inner pipe is 300mm, the thickness of the interlayer insulation layer is 135mm, and the thickness of the outer pipe wall is 0.6mm. The phenolic foam of the phenolic foam insulation layer is composed of phenolic resin, flame retardant, modifier, surfactant, curing agent and foaming agent, flame retardant, modifier, surfactant, curing agent and foaming agent Using boric acid, glycerin, dimethyl cyclosiloxane, methanesulfonic acid and n-pentane respectively, the content of phenolic resin, flame retardant, modifier, surfactant, curing agent and foaming agent is phenolic Resin 100, boric acid 3.5, glycerin 1, dimethylcyclosiloxane 1, methanesulfonic acid 8...

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Abstract

A prefabricated spiral pnenolic aldehyde thermal insulation pipe and a manufacturing method thereof, a thermal insulation pipe is related. A prefabricated spiral pnenolic aldehyde thermal insulation pipe which has good heat preservation, insulation and sound isolation effect, is difficult in burning, no smoke in open flame, nontoxic, difficult in water absorption, not constringency, not deformation, good in machinery intensity, low in heat conductivity coefficient, no harm for human body, and broad in application and a method which is simple in technics, forming in one time, low in cost and can continuously or intermittently produce the prefabricated spiral pnenolic aldehyde thermal insulation pipe are provided. The thermal insulation pipe is a three layer composite pipe and is disposed with an inner pipe, an outer pipe and an intermediate pipe. The step is that: mixing formaldehyde-phenol resin, combustion inhibitor, modifying agent, and surfactants with proportion as A material; mixing firming agent and aerating powder as B material, opening a drying tunnel and heating it to predetermined temperature, starting a tube machine and a high-pressure foam maker, pouring A material and B material into the spiral pipe after mixing them with high pressure, pouring the material while making pipe, the pipe after being poured with foaming materials will be heated in the drying tunnel to foam, the one time form can be achieved, cutting after the foam body solidified and piling code by an automatic code putting machine.

Description

technical field [0001] The invention relates to a thermal insulation pipe, in particular to a prefabricated spiral phenolic thermal insulation pipe and a manufacturing method thereof. Background technique [0002] Insulation pipes are widely used in the insulation of various pipes, such as hot liquid, cold liquid, steam and other pipes. Generally, the insulation pipe is composed of a pipe body and an insulation layer, and its disadvantage is that the insulation performance is poor and it is easy to deform. Related reports have been made about the insulation pipe. The utility model patent with the notification number CN2505673 provides a new type of composite insulation pipe. The insulation layer made of polyurethane is evenly distributed with spherical silicon and compounded on the surface of the steel pipe body. The outer layer of the insulation layer is an anti-corrosion sealing protection layer. , forming a new type of composite insulation pipe. The invention patent ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/147C08L61/06C08J9/00C08K5/5415B32B5/20B29C44/12B29C44/46
Inventor 汪坤明李振华
Owner 厦门高特高新材料有限公司
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