CN204986184U - Expansion joint - Google Patents

Expansion joint Download PDF

Info

Publication number
CN204986184U
CN204986184U CN201520749450.0U CN201520749450U CN204986184U CN 204986184 U CN204986184 U CN 204986184U CN 201520749450 U CN201520749450 U CN 201520749450U CN 204986184 U CN204986184 U CN 204986184U
Authority
CN
China
Prior art keywords
bellows
adapter
expansion joint
guide shell
draft tube
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
CN201520749450.0U
Other languages
Chinese (zh)
Inventor
徐广林
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.)
Jiangsu Wide Siphunculus Industry Manufacturing Co Ltd
Original Assignee
Jiangsu Wide Siphunculus Industry Manufacturing 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 Jiangsu Wide Siphunculus Industry Manufacturing Co Ltd filed Critical Jiangsu Wide Siphunculus Industry Manufacturing Co Ltd
Priority to CN201520749450.0U priority Critical patent/CN204986184U/en
Application granted granted Critical
Publication of CN204986184U publication Critical patent/CN204986184U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses an expansion joint, be provided with the pressure balance hole on the draft tube, introduce the space between bellows and the draft tube through the pressure balance hole with the exhaust flow, make positive negative pressure offset to reduce the vibration, has improved life, be provided with the exhaust hole on the corrugated tube, through high -temperature steam through exhaust hole blowout, break the information of leaking to the bellows inlayer through this phenomenon and inform the user, the bellows outside is provided with the protection casing, can protect the bellows when going wrong, and the injury of reduction personnel, the draft tube both sides are provided with the strengthening rib, can strengthen expansion joint's stability, and this expansion joint has simple structure, safe and reliable's advantage, has wide market prospect.

Description

A kind of expansion joint
Technical field
The utility model relates to tubing field, particularly a kind of expansion joint.
Background technique
Expansion joint is the additional stress for compensating because temperature difference and mechanical vibration cause, and is arranged on a kind of flexible structure on container shell or pipeline.Due to it as a kind of can the elastic compensation element of free-extension, there is the advantages such as reliable operation, functional, compact structure, be widely used in the departments such as chemical industry, metallurgy, nuclear energy.Expansion joint is also compensator traditionally, or slip joint.By forming the bellows (a kind of elastic element) of its operative body and holding the annexes such as pipe, support, flange, conduit to form.Expansion joint is the additional stress in order to compensate because temperature difference and mechanical vibration cause, and is arranged on a kind of flexible structure on container shell or pipeline.Utilize effective dilatation of its operative body bellows, to absorb pipeline, conduit, container etc. by reason and the dimensional changes produced such as expanding with heat and contract with cold, or axial, the transverse direction of compensation pipes, conduit, container etc. and angular displacement.Also can be used in noise-and-vibration-reduction, heat supply, when heating up to prevent heat supply pipeline, pipe deforming or destruction is caused due to thermal stretching or temperature stress, need to arrange compensator on pipeline, to compensate the thermal stretching of pipeline, thus the stress reducing tube wall and the active force acted on valve member or supporting structure.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of expansion joint, to solve the above-mentioned multinomial defect caused in prior art.
For achieving the above object, the utility model provides following technological scheme: a kind of expansion joint, comprise bellows, adapter, guide shell and flange, guide shell is welded with outside described bellows, the packing with thermal insulating properties is provided with between described bellows and guide shell, described adapter is divided into left adapter and right adapter, described left adapter is connected with bellows respectively with right adapter, described left adapter and right adapter are connected by gasket ring with between guide shell, the left adapter of the upper and lower both sides of described bellows and left adapter are by otic placode and Stud connection, the mouth of pipe of described bellows is provided with flange.
Preferably, described guide shell is provided with pressure compensation opening.
Preferably, described bellows is provided with exhaust port, the degree of depth of described exhaust port is less than total wall thickness of bellows.
Preferably, described bellows arranged outside has protective housing.
Preferably, described guide shell both sides are provided with stiffening rib.
The beneficial effect of above technological scheme is adopted to be: a kind of expansion joint of the utility model structure, described guide shell is provided with pressure compensation opening, waste gas streams introduced the space between bellows and guide shell by pressure compensation opening, positive/negative pressure is offset, thus reduce vibration, improve working life, described bellows is provided with exhaust port, sprayed by exhaust port by high-temperature steam, by this phenomenon the information notification user of bellows internal layer rupture and leakage, described bellows arranged outside has protective housing, can protect bellows when going wrong, minimizing personnel injure, described guide shell both sides are provided with stiffening rib, the stability of expansion joint can be strengthened, it is simple that this expansion joint has structure, safe and reliable advantage, there are wide market prospects.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of expansion joint of the utility model;
Fig. 2 is the structural representation of protective housing;
Wherein, 1-bellows, the left adapter of 2-, the right adapter of 3-, 4-guide shell, 5-flange, 6-gasket ring, 7-otic placode, 8-stud, 9-pressure compensation opening, 10-exhaust port, 11-protective housing, 12-stiffening rib.
Embodiment
Preferred implementation of the present utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 shows embodiment of the present utility model: a kind of expansion joint, comprise bellows 1, adapter, guide shell 4 and flange 5, guide shell 4 is welded with outside described bellows 1, the packing with thermal insulating properties is provided with between described bellows 1 and guide shell 4, described adapter is divided into left adapter 2 and right adapter 3, described left adapter 2 is connected with bellows 1 respectively with right adapter 3, described left adapter 2 and being connected by gasket ring 6 between right adapter 3 with guide shell 4, the left adapter 2 of described bellows about 1 both sides is connected with stud 8 by otic placode 7 with left adapter 3, the mouth of pipe of described ripple 1 pipe is provided with flange 5.
In addition, as shown in Figure 2, described guide shell 4 is provided with pressure compensation opening 9, described bellows 1 is provided with exhaust port 10, the degree of depth of described exhaust port 10 is less than total wall thickness of bellows 1, and described bellows 1 arranged outside has protective housing 11, and described guide shell 4 both sides are provided with stiffening rib 12.
Based on above-mentioned, the utility model provides a kind of expansion joint, described guide shell is provided with pressure compensation opening, waste gas streams introduced the space between bellows and guide shell by pressure compensation opening, positive/negative pressure is offset, thus reduce vibration, improve working life, described bellows is provided with exhaust port, sprayed by exhaust port by high-temperature steam, by this phenomenon the information notification user of bellows internal layer rupture and leakage, described bellows arranged outside has protective housing, can protect bellows when going wrong, minimizing personnel injure, described guide shell both sides are provided with stiffening rib, the stability of expansion joint can be strengthened, it is simple that this expansion joint has structure, safe and reliable advantage, there are wide market prospects.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims (5)

1. an expansion joint, it is characterized in that, comprise bellows, adapter, guide shell and flange, guide shell is welded with outside described bellows, the packing with thermal insulating properties is provided with between described bellows and guide shell, described adapter is divided into left adapter and right adapter, described left adapter is connected with bellows respectively with right adapter, described left adapter and right adapter are connected by gasket ring with between guide shell, the left adapter of the upper and lower both sides of described bellows and left adapter are by otic placode and Stud connection, and the mouth of pipe of described bellows is provided with flange.
2. a kind of expansion joint according to claim 1, is characterized in that, described guide shell is provided with pressure compensation opening.
3. a kind of expansion joint according to claim 1, is characterized in that, described bellows is provided with exhaust port, and the degree of depth of described exhaust port is less than total wall thickness of bellows.
4. a kind of expansion joint according to claim 1, is characterized in that, described bellows arranged outside has protective housing.
5. a kind of expansion joint according to claim 1, is characterized in that, described guide shell both sides are provided with stiffening rib.
CN201520749450.0U 2015-09-24 2015-09-24 Expansion joint Expired - Fee Related CN204986184U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520749450.0U CN204986184U (en) 2015-09-24 2015-09-24 Expansion joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520749450.0U CN204986184U (en) 2015-09-24 2015-09-24 Expansion joint

Publications (1)

Publication Number Publication Date
CN204986184U true CN204986184U (en) 2016-01-20

Family

ID=55120552

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520749450.0U Expired - Fee Related CN204986184U (en) 2015-09-24 2015-09-24 Expansion joint

Country Status (1)

Country Link
CN (1) CN204986184U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135138A (en) * 2015-09-24 2015-12-09 江苏广通管业制造有限公司 Expansion joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135138A (en) * 2015-09-24 2015-12-09 江苏广通管业制造有限公司 Expansion joint

Similar Documents

Publication Publication Date Title
CN204986184U (en) Expansion joint
CN201866399U (en) Shaft seal device for high-temperature hot air door
CN106641546A (en) Directly-buried compound sleeve compensator
CN206943631U (en) A kind of vacuum sealing tube telescopic with adaptive guard function
CN105135138A (en) Expansion joint
CN204986084U (en) Corrugated metal pipe
CN205371923U (en) Metallic bellow expansion joint
CN204785273U (en) High compensation volume sleeve pipe compensator
CN204692883U (en) A kind of corrugated expansion joint
CN204026017U (en) Low-temperature corrosion protection flue non-metal expansion joint
CN204164592U (en) The corrosion-resistant steam jacket thermal insulation pipe of Molten sulphur conveying
CN202885624U (en) Cooling tube jacket
CN205191074U (en) Low temperature medium compensator for pipeline
CN205191070U (en) High temperature resistant flue gas pipeline compensator
CN204986953U (en) Steam silencer prevent expend with heat and contract with cold structure
CN204240844U (en) Be applicable to the tubular heat exchanger of high-temperature gas
CN205191071U (en) Power plant uses explosion -proof expansion joint
CN203375075U (en) Double-layer water-cooled expansion joint
CN208358098U (en) A kind of backside gas protective device that pipeline is welded for group
CN205173834U (en) Direct -burried combined type sleeve compensator
CN204756275U (en) Flue gas pipeline thermal energy compensation arrangement
CN204785264U (en) Exempt from to maintain whirl compensator
CN212131694U (en) Low-pressure water supply expansion joint for power station
CN215334992U (en) Boiler container pipeline connecting device for preventing leakage
CN206619402U (en) A kind of penetration piece and nuclear facilities suitable for hot environment

Legal Events

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

Granted publication date: 20160120

Termination date: 20160924

CF01 Termination of patent right due to non-payment of annual fee