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A steel-sheathed steel steam direct-buried thermal insulation pipe and its quick connection device

A technology of direct buried thermal insulation pipe and quick connection, which is used in thermal insulation, flange connection, and protection of pipelines through thermal insulation, etc., can solve the problems of poor sealing, inability to overcome the looseness of the nozzle, and leakage of medium at the joint, so as to avoid deformation, Improve heat transfer efficiency and service life, and save production costs

Active Publication Date: 2020-06-02
JIANGSU TIANRUN PIPE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the docking device generally adopts direct docking and then is tightly held by a tight fitting. This docking method has poor sealing performance and cannot overcome the problem of loosening of the nozzle due to thermal expansion and contraction of the pipeline, which often leads to leakage of medium at the docking point.

Method used

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  • A steel-sheathed steel steam direct-buried thermal insulation pipe and its quick connection device
  • A steel-sheathed steel steam direct-buried thermal insulation pipe and its quick connection device
  • A steel-sheathed steel steam direct-buried thermal insulation pipe and its quick connection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A steel-sheathed steel steam directly buried thermal insulation pipe, comprising an inner working tube, an insulating layer and an outer protective tube; the outer protective tube is set outside the inner working tube, and the thermal insulation layer is arranged between the inner working tube and the outer protective tube;

[0026]The inner working tube is a steel pipe, and the inner wall of the inner working tube is coated with anti-corrosion materials. The anti-corrosion materials include the following raw materials in parts by weight: 15 parts of epoxy resin, 10 parts of p-hydroxybenzoic acid, 12 parts of quartz sand, seaweed 1 part of sodium bicarbonate, 2 parts of 2-bromo-4-methylaniline, 2 parts of phenyl p-nitrotrifluoroacetate, 8 parts of glass fiber, 10 parts of modified ceramic powder, 1 part of dispersant, 2 parts of defoamer The preparation method of the anti-corrosion material is: (1) do not weigh the raw materials of the above-mentioned parts by weight; (2...

Embodiment 2

[0031] A steel-sheathed steel steam directly buried thermal insulation pipe, comprising an inner working tube, an insulating layer and an outer protective tube; the outer protective tube is set outside the inner working tube, and the thermal insulation layer is arranged between the inner working tube and the outer protective tube;

[0032] The inner working tube is a steel pipe, and the inner wall of the inner working tube is coated with anti-corrosion materials. The anti-corrosion materials include the following raw materials in parts by weight: 20 parts of epoxy resin, 22 parts of p-hydroxybenzoic acid, 23 parts of quartz sand, seaweed 1 part of sodium bicarbonate, 2.5 parts of 2-bromo-4-methylaniline, 4 parts of phenyl p-nitrotrifluoroacetate, 14 parts of glass fiber, 18 parts of modified ceramic powder, 2 parts of dispersant, 2 parts of defoamer The preparation method of the anti-corrosion material is: (1) take the raw materials of the above-mentioned parts by weight respec...

Embodiment 3

[0037] A steel-sheathed steel steam directly buried thermal insulation pipe, comprising an inner working tube, an insulating layer and an outer protective tube; the outer protective tube is set outside the inner working tube, and the thermal insulation layer is arranged between the inner working tube and the outer protective tube;

[0038] The inner working pipe is a steel pipe, and the inner and outer walls of the inner working pipe are coated with anti-corrosion materials. The anti-corrosion materials include the following raw materials in parts by weight: 38 parts of epoxy resin, 135 parts of p-hydroxybenzoic acid, and 30 parts of quartz sand , 2 parts of sodium alginate, 3 parts of 2-bromo-4-methylaniline, 5 parts of phenyl p-nitrotrifluoroacetate, 19 parts of glass fiber, 26 parts of modified ceramic powder, 3 parts of dispersant, defoamer 3 parts; the preparation method of the anti-corrosion material is: (1) take the raw materials of the above-mentioned parts by weight re...

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Abstract

The invention discloses a steel jacket steel steam buried insulated pipe and a fast connecting device thereof. The insulated pipe comprises an inner work pipe, an insulating layer and an outer protection pipe. The outer protection pipe is arranged on the outer portion of the inner work pipe in a sleeving manner. The insulating layer is arranged between the inner work pipe and the outer protectionpipe. The outer wall of the inner work pipe is coated with an anti-corrosion material, and centrifugal glass wool serves as the material of the insulating layer. The fast connecting device comprises amounting plate, movement blocks and butt-joint assemblies. A sliding groove is formed in the mounting plate, the left side and the right side of the mounting plate are in threaded connection with lead screws, the movement blocks are used for adjusting the positions of insulated pipes at the two ends, and the butt-joint assemblies are used for connecting the insulated pipes at the two ends. The insulated pipe has high corrosion resistance and the heat retaining property, the two segments of the insulated pipe can be firmly connected without welding, and the heating power transmission efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of thermal pipeline transmission and production technology, in particular to a steel-sheathed steel steam direct-buried thermal insulation pipe and a quick connection device thereof. Background technique [0002] Steel-sleeved steel insulation pipes are widely used in liquid and gas transportation pipe networks, chemical pipeline insulation engineering petroleum, chemical industry, central heating heating network, central air-conditioning ventilation pipes, municipal engineering, etc., in order to reduce the energy loss of the medium in circulation, for The steel-sheathed steel insulation pipe should be insulated to inhibit the energy exchange between the medium and the environment. The traditional way of heat preservation is to coat the pipes conveying the medium with heat preservation materials. The heat preservation materials are connected to the atmosphere, and the heat preservation materials are easily ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L58/10F16L58/14F16L59/04F16L23/024C09D163/00C09D105/04C09D5/08C09D7/62C09D7/63C09D7/61C03C25/002C03C25/30C03C25/40
CPCC03C25/002C03C25/30C03C25/40C09D5/08C09D7/61C09D7/62C09D7/63C09D7/70C09D163/00F16L23/024F16L58/1009F16L58/14F16L59/04C08L5/04C08K13/06C08K7/14C08K3/36C08K5/18Y02P20/10
Inventor 赵磊梁启超张敏
Owner JIANGSU TIANRUN PIPE CO LTD
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