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Method for producing foaming heat-preservation pipe and foaming heat-preservation pipe

A production method and technology for thermal insulation pipes, which are applied in the direction of thermal insulation, protection of pipelines, pipes/pipe joints/pipe fittings through thermal insulation, etc. , the effect of improving the thermal insulation effect

Active Publication Date: 2014-10-08
吴开勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a foam insulation pipe, which solves the problems of low thermal insulation performance and high maintenance cost of existing insulation pipes

Method used

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  • Method for producing foaming heat-preservation pipe and foaming heat-preservation pipe
  • Method for producing foaming heat-preservation pipe and foaming heat-preservation pipe
  • Method for producing foaming heat-preservation pipe and foaming heat-preservation pipe

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Embodiment Construction

[0041] Below will combine accompanying drawing of the present invention Figure 1-10 As shown, the technical solution of the present invention is clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] Such as figure 1 As shown in the schematic flow chart of the production method of the foam insulation pipe in an embodiment of the present invention, the steps of the production method of the foam insulation pipe of the present invention include:

[0043] Step S101, welding the support beams. Such as figure 2 , 3As shown, 6 "I" shaped support beams 20 are welded on the outer wall of the inner tube 10 of the insulation pipe, and the 6 support beams 20 are evenly arrange...

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Abstract

The invention provides a method for producing a foaming heat-preservation pipe. The method includes the steps that locating supporting beams are evenly fixed on the outer wall of an inner pipe body of the heat-preservation pipe in the radial direction; the inner pipe body with the locating supporting beams is sleeved with an outer pipe body with one closed end; the opening end of the outer pipe body is upwards and vertically fixed; liquid polyurethane is injected into a gap between the inner pipe body and the outer pipe body, the polyurethane foams and swells in the gap in a set time and at a set temperature, the gap between the inner pipe body and the outer pipe body is filled with the foamed polyurethane, and the foamed polyurethane is coagulated between the inner pipe body and the outer pipe body. The problem that an existing heat-preservation pipe is low in heat-preservation performance and high in maintaining cost is solved. In this way, accurate attachment between a polyurethane insulation coating and the inner pipe body and between the polyurethane insulation coating and the outer pipe body is guaranteed, moisture coagulation and internal corrosions are reduced, the service life of the heat-preservation pipe is accordingly prolonged, and the maintaining cost is accordingly reduced.

Description

technical field [0001] The invention relates to the technical field of thermal pipeline transmission and production, in particular to a production method of a foamed thermal insulation pipe and the foamed thermal insulation pipe. Background technique [0002] Heat pipes are widely used in thermal heating and transmission pipelines in chemical production. Existing heat transmission pipelines are realized by using different types of insulation pipes according to different heating requirements and transmission requirements. In order to ensure a better heat preservation effect in existing heat preservation pipes, the heat preservation pipe structure is usually adopted, and the polystyrene insulation layer is fixed on the outside of the inner pipe, and the mode of adding an outer pipe outside the polystyrene heat preservation layer is realized. Since the insulation pipe is mostly implemented in the way of underground pre-buried, when the insulation pipe is buried underground as a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/14F16L59/02F16L58/00B29C44/12B29B11/00
CPCB29C44/12B29C44/60F16L58/00F16L59/028F16L59/15
Inventor 唐金霞
Owner 吴开勇
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