CN202176866U - Furnace gas pipeline expansion joint provided with protective cover - Google Patents

Furnace gas pipeline expansion joint provided with protective cover Download PDF

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Publication number
CN202176866U
CN202176866U CN2011202605655U CN201120260565U CN202176866U CN 202176866 U CN202176866 U CN 202176866U CN 2011202605655 U CN2011202605655 U CN 2011202605655U CN 201120260565 U CN201120260565 U CN 201120260565U CN 202176866 U CN202176866 U CN 202176866U
Authority
CN
China
Prior art keywords
expansion joint
furnace gas
gas pipeline
expansion
protective cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011202605655U
Other languages
Chinese (zh)
Inventor
刘强
张恒昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN BODA VITRIOL INDUSTRY Co Ltd
Original Assignee
TIANJIN BODA VITRIOL INDUSTRY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN BODA VITRIOL INDUSTRY Co Ltd filed Critical TIANJIN BODA VITRIOL INDUSTRY Co Ltd
Priority to CN2011202605655U priority Critical patent/CN202176866U/en
Application granted granted Critical
Publication of CN202176866U publication Critical patent/CN202176866U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a furnace gas pipeline expansion joint provided with a protective cover. The furnace gas pipeline expansion joint comprises a metal expansion joint and a expansion joint protective cover and is characterized in that: the expansion joint protective cover is coated on the outer side of the metal expansion joint, and the upper end and the lower end of the expansion joint protective cover are respectively welded and fixed on the outer wall of a furnace gas pipeline on the upper side and the lower side of the metal expansion joint. The furnace gas pipeline expansion joint has the beneficial effects that: the problem that the environment is polluted due to leakage of the furnace gas pipeline expansion joint is effectively solved. The expansion joint provided by the utility model has the advantages of simple structure, short overhauling time, economy and reliability.

Description

The furnace gas pipeline expansion joint that has safety cover
Technical field
The utility model belongs to the pipeline welding technical field, especially relates to a kind of furnace gas pipeline expansion joint that has safety cover.
Background technique
In sulphuric acid process, the expansion joint of furnace gas pipeline is because of at high temperature work the metal easy fatigue for a long time; Expansion joint suffers breakage, and the situation through furnace gas appears leaking in regular meeting causes environmental pollution; Compelled parking maintenance, and under high temperature condition, the replacing of expansion joint is also very difficult.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, easy for installation, furnace gas pipeline expansion joint that has safety cover that sealing is high.
The technological scheme of the utility model is: the furnace gas pipeline expansion joint that has safety cover; Comprise and be connected ducted expansion of metal joint and expansion joint safety cover; Said expansion joint safety cover is wrapped in the outside of expansion of metal joint, and two ends are welded respectively to be packed in and are positioned at the expansion of metal joint up and down on the furnace gas pipeline outer wall of both sides up and down.
Advantage and the good effect that the utlity model has are: owing to adopt technique scheme, effectively solved the problem that leakage pollution environment appears in the furnace gas pipeline expansion joint, the utility model is simple in structure, the repair time is short, economic and reliable.
Description of drawings
Fig. 1 is the structural representation that has the furnace gas pipeline expansion joint of safety cover
Among the figure:
1, expansion of metal joint 2, expansion joint safety cover 3, furnace gas pipeline
Embodiment
It is as shown in Figure 1,
The technological scheme of the utility model is:
The furnace gas pipeline expansion joint that has safety cover; Comprise and be connected ducted expansion of metal joint 1 and expansion joint safety cover 2; Said expansion joint safety cover 2 is wrapped in the outside of expansion of metal joint 1, and two ends are welded respectively and are packed on furnace gas pipeline 3 outer walls that are positioned at expansion of metal joint both sides about in the of 1 up and down.
The working procedure of this instance:
Expansion joint safety cover 2 is enclosed within expansion of metal saves 1 the outside, and handle is welded on respectively on the furnace gas pipeline 3 at two ends up and down.In the production process of sulfuric acid, the temperature of furnace gas pipeline 3 is than higher, and it is damaged to cause expansion of metal joint 1 to take place easily; Owing to expansion joint safety cover 2 is installed at expansion of metal joint 1, increased layer of protecting, its swell increment is bigger than the swell increment of independent expansion of metal joint 1; Therefore; Problem of stress concentration can not occur, behind use the utility model, the situation of leakage once more appears in furnace gas pipeline 3 always.
More than the embodiment of the utility model is specified, but said content is merely the preferred embodiment of the utility model, can not be considered to be used to limit the practical range of the utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the utility model.

Claims (1)

1. the furnace gas pipeline expansion joint that has safety cover; Comprise and be connected ducted expansion of metal joint and expansion joint safety cover; It is characterized in that: said expansion joint safety cover is wrapped in the outside of expansion of metal joint, and two ends are welded respectively to be packed in and are positioned at the expansion of metal joint up and down on the furnace gas pipeline outer wall of both sides up and down.
CN2011202605655U 2011-07-21 2011-07-21 Furnace gas pipeline expansion joint provided with protective cover Expired - Fee Related CN202176866U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202605655U CN202176866U (en) 2011-07-21 2011-07-21 Furnace gas pipeline expansion joint provided with protective cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202605655U CN202176866U (en) 2011-07-21 2011-07-21 Furnace gas pipeline expansion joint provided with protective cover

Publications (1)

Publication Number Publication Date
CN202176866U true CN202176866U (en) 2012-03-28

Family

ID=45866744

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202605655U Expired - Fee Related CN202176866U (en) 2011-07-21 2011-07-21 Furnace gas pipeline expansion joint provided with protective cover

Country Status (1)

Country Link
CN (1) CN202176866U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103143888A (en) * 2013-02-21 2013-06-12 中国十九冶集团有限公司 Method for manufacturing site pipeline type expansion joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103143888A (en) * 2013-02-21 2013-06-12 中国十九冶集团有限公司 Method for manufacturing site pipeline type expansion joint

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120328

Termination date: 20140721

EXPY Termination of patent right or utility model