CN107300083A - A kind of power-plant flue gas delivery pipe heat insulation type expansion joint - Google Patents
A kind of power-plant flue gas delivery pipe heat insulation type expansion joint Download PDFInfo
- Publication number
- CN107300083A CN107300083A CN201710715638.7A CN201710715638A CN107300083A CN 107300083 A CN107300083 A CN 107300083A CN 201710715638 A CN201710715638 A CN 201710715638A CN 107300083 A CN107300083 A CN 107300083A
- Authority
- CN
- China
- Prior art keywords
- flange
- bellows
- liner
- rubber
- metal bellows
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/022—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with a single corrugation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a kind of power-plant flue gas delivery pipe heat insulation type expansion joint, the liner set on the inside of metal bellows forms a flexible heat-proof device with flexible steel ring, high-temperature gas so in power-plant flue gas pipeline is not directly placed on metal bellows, weaken impingment corrosion of the high-temperature flue gas to metal bellows significantly, extend the service life of metal bellows;The outside of metal bellows is provided with rubber bellows and elastic metallic net, insulation material is filled between rubber bellows and elastic metallic net, insulation material can reduce influence of the outside air temperature to metal bellows, metal bellows is conducive to be worked at temperature more constant environment, elastic metallic net has preferable gas permeability, is conducive to the air pressure uniformity inside expansion joint.
Description
Technical field
The present invention relates to a kind of expansion joint, more precisely, being a kind of power-plant flue gas delivery pipe heat insulation type expansion
Section.
Background technology
Expansion joint is traditionally also compensator, or telescopic joint.By constitute the bellows and end pipe of its operative body, support,
The annexes such as flange, conduit are constituted.Expansion joint is to compensate for the additional stress caused by temperature difference and mechanical oscillation, and sets
A kind of flexible structure on container casing or pipeline.Using effective dilatation of its operative body bellows, with absorption tube
The change in size that line, conduit, container etc. are produced by the reason such as expanding with heat and contract with cold, or compensation pipes, conduit, container etc. axial direction,
Transverse direction and angular displacement.Noise-and-vibration-reduction is can also be used for, in heat supply, during in order to prevent that heat supply pipeline from heating up, due to thermal stretching or temperature
Spend stress and cause pipe deforming or destruction, it is necessary to set compensator on pipeline, to compensate the thermal stretching of pipeline, so as to reduce
The stress of tube wall and act on the active force on valve member or supporting structure.
High-temperature flue gas in power-plant flue gas delivery pipe especially has larger impact rotten to expansion joint inwall to bellows
Corrosion, and the outer wall of expansion joint is outdoor exposed to the external world, corrugated pipe wall internal-external temperature difference is larger when ambient temperature is relatively low,
Bellows is by the easy aging of effect of uneven internal stress, and service life is shorter.
The content of the invention
The present invention mainly solves the technical problem present in prior art, is used so as to provide a kind of power-plant flue gas delivery pipe
Heat insulation type expansion joint.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals:
A kind of power-plant flue gas delivery pipe heat insulation type expansion joint, includes one first connecting tube and one second connecting tube, first
A metal bellows is connected between connecting tube and the second connecting tube, the first connection pipe end welds a first flange, the second connecting tube
End weld a second flange, one first liner and one second liner, the first liner and first are provided with the inside of metal bellows
Flange welding, the second liner is welded with second flange, and heat resistant rubber block, heat resistant rubber are filled between the first liner and the second liner
The both sides of block are respectively provided with a flexible steel ring, and the two ends of flexible steel ring are welded with the first liner and the second liner respectively, wavy metal
A rubber bellows are provided with the outside of pipe, the two ends of rubber bellows are connected with first flange and second flange, rubber bellows with
An elastic metallic net is provided between metal bellows, the two ends of elastic metallic net are connected with first flange and second flange, rubber ripple
A heat preservation rock circle is filled between line pipe and elastic metallic net, the two ends of heat preservation rock circle connect one first insulation rubber ring respectively
Rubber ring is incubated with one second, the first insulation rubber ring is Nian Jie with first flange, and the second insulation rubber ring is Nian Jie with second flange.
As preferred embodiments of the present invention, described elastic metallic net is stainless steel cloth.
As preferred embodiments of the present invention, described heat resistant rubber block is made up of fluorubber.
The power-plant flue gas delivery pipe of the present invention is had the following advantages that with heat insulation type expansion joint:
1st, the liner and flexible steel ring set on the inside of metal bellows forms a flexible heat-proof device, such power plant
High-temperature gas in flue is not directly placed on metal bellows, weakens impact of the high-temperature flue gas to metal bellows significantly
Corrosion, extends the service life of metal bellows.
2nd, the outside of metal bellows is provided with rubber bellows and elastic metallic net, rubber bellows and elastic metallic net
Between be filled with insulation material, insulation material can reduce influence of the outside air temperature to metal bellows, be conducive to metal bellows
Worked at temperature more constant environment, elastic metallic net has preferable gas permeability, is conducive to the air pressure inside expansion joint
Uniformity.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural pipe wall schematic diagram of the power-plant flue gas delivery pipe heat insulation type expansion joint of the present invention.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
As shown in figure 1, a kind of power-plant flue gas delivery pipe heat insulation type expansion joint, includes one first connecting tube 10 and one
Second connecting tube 20, connects a metal bellows 30, the end of the first connecting tube 10 between the first connecting tube 10 and the second connecting tube 20
Weld a first flange 11, a second flange 21 is welded in the end of the second connecting tube 20, the inner side of metal bellows 30 is provided with one the
One liner 41 and one second liner 42, the first liner 41 are welded with first flange 11, and the second liner 42 is welded with second flange 21,
Heat resistant rubber block 43 is filled between first liner 41 and the second liner 42, the both sides of heat resistant rubber block 43 are respectively provided with a flexible steel ring
50, the two ends of flexible steel ring 50 are welded with the first liner 41 and the second liner 42 respectively, and the outside of metal bellows 30 is provided with a rubber
Glue bellows 60, the two ends of rubber bellows 60 are connected with first flange 11 and second flange 21, rubber bellows 60 and metal
An elastic metallic net 70 is provided between bellows 30, the two ends of elastic metallic net 70 are connected with first flange 11 and second flange 21,
A heat preservation rock circle 61 is filled between rubber bellows 60 and elastic metallic net 70, the two ends of heat preservation rock circle 61 connect one respectively
The first insulation insulation rubber ring 63 of rubber ring 62 and 1 second, the first insulation rubber ring 62 is be bonded with first flange 11, and second protects
Warm rubber ring 63 is be bonded with second flange 21.
As to further improvement of the present invention, described elastic metallic net 70 is stainless steel cloth.
As to further improvement of the present invention, described heat resistant rubber block 43 is made up of fluorubber.
The power-plant flue gas delivery pipe of the invention is had the following advantages that with heat insulation type expansion joint:
1st, the liner and flexible steel ring set on the inside of metal bellows forms a flexible heat-proof device, such power plant
High-temperature gas in flue is not directly placed on metal bellows, weakens impact of the high-temperature flue gas to metal bellows significantly
Corrosion, extends the service life of metal bellows.
2nd, the outside of metal bellows is provided with rubber bellows and elastic metallic net, rubber bellows and elastic metallic net
Between be filled with insulation material, insulation material can reduce influence of the outside air temperature to metal bellows, be conducive to metal bellows
Worked at temperature more constant environment, elastic metallic net has preferable gas permeability, is conducive to the air pressure inside expansion joint
Uniformity.
Only illustrate the mentality of designing of the present invention in one embodiment above, in the case where system allows, the present invention can
To expand to external more functional modules simultaneously, so as to extend its function to greatest extent.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
The change or replacement expected without creative work, should all be included within the scope of the present invention.Therefore, it is of the invention
Protection domain should be determined by the scope of protection defined in the claims.
Claims (3)
1. a kind of power-plant flue gas delivery pipe heat insulation type expansion joint, it is characterised in that include one first connecting tube(10)With
One second connecting tube(20), the first connecting tube(10)With the second connecting tube(20)Between connect a metal bellows(30), first connects
Adapter(10)Weld a first flange in end(11), the second connecting tube(20)End weld a second flange(21), metal wave
Line pipe(30)Inner side is provided with one first liner(41)With one second liner(42), the first liner(41)With first flange(11)Weldering
Connect, the second liner(42)With second flange(21)Welding, the first liner(41)With the second liner(42)Between be filled with heat resistant rubber
Block(43), heat resistant rubber block(43)Both sides be respectively provided with a flexible steel ring(50), flexible steel ring(50)Two ends respectively with first
Liner(41)With the second liner(42)Welding, metal bellows(30)Outside is provided with a rubber bellows(60), rubber bellows
(60)Two ends and first flange(11)And second flange(21)Connection, rubber bellows(60)And metal bellows(30)Between set
There is an elastic metallic net(70), elastic metallic net(70)Two ends and first flange(11)And second flange(21)Connection, rubber
Bellows(60)With elastic metallic net(70)Between be filled with a heat preservation rock circle(61), heat preservation rock circle(61)Two ends connect respectively
Connect one first insulation rubber ring(62)With one second insulation rubber ring(63), the first insulation rubber ring(62)With first flange(11)
Bonding, the second insulation rubber ring(63)With second flange(21)Bonding.
2. power-plant flue gas delivery pipe according to claim 1 heat insulation type expansion joint, it is characterised in that described bullet
Property wire netting(70)For stainless steel cloth.
3. power-plant flue gas delivery pipe according to claim 2 heat insulation type expansion joint, it is characterised in that described is resistance to
Hot block rubber(43)It is made up of fluorubber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710715638.7A CN107300083A (en) | 2017-08-20 | 2017-08-20 | A kind of power-plant flue gas delivery pipe heat insulation type expansion joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710715638.7A CN107300083A (en) | 2017-08-20 | 2017-08-20 | A kind of power-plant flue gas delivery pipe heat insulation type expansion joint |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107300083A true CN107300083A (en) | 2017-10-27 |
Family
ID=60132481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710715638.7A Withdrawn CN107300083A (en) | 2017-08-20 | 2017-08-20 | A kind of power-plant flue gas delivery pipe heat insulation type expansion joint |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107300083A (en) |
-
2017
- 2017-08-20 CN CN201710715638.7A patent/CN107300083A/en not_active Withdrawn
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN207195933U (en) | A kind of power-plant flue gas delivery pipe heat insulation type expansion joint | |
CN107300083A (en) | A kind of power-plant flue gas delivery pipe heat insulation type expansion joint | |
CN205244716U (en) | Heat -resisting type non -metallic expansion joint | |
CN205896534U (en) | Flange high temperature expansion festival | |
CN102705613A (en) | Axial corrugated compensator | |
CN203098042U (en) | Oil inlet pipe body of booster | |
CN205298868U (en) | Compound damping exhaust bellows | |
CN205001767U (en) | Integration vacuum transmission pipe | |
CN203189960U (en) | Vacuum insulation pipe | |
CN211501979U (en) | BY gland loose sleeve limiting compensation expansion joint | |
CN202666037U (en) | Connecting structure for inner oven body and outer oven body of tunnel type sterilization oven | |
CN208565924U (en) | A kind of novel heat insulation portable activity pipeline | |
CN207394152U (en) | A kind of bellows | |
CN109424815A (en) | Novel universal hinge compensator | |
CN209484143U (en) | A kind of lower link bar type expansion joint | |
CN103090151A (en) | Pressure balance type bellows expansion joint with outer pressure straight pipe | |
CN209399021U (en) | A kind of sleeve expansion joint | |
CN208041430U (en) | A kind of special axial corrugated expansion joint of dehumidifier | |
CN207064940U (en) | Double shielding anti-leak non-metal expansion joint | |
CN207963197U (en) | A kind of straight-through type solar energy heat collector | |
CN208382594U (en) | A kind of fluid delivery structure for straight-through type solar energy heat collector | |
CN207962594U (en) | A kind of straight-through type solar energy steam generating system | |
CN207715966U (en) | A kind of high temperature feed bin expansion joint | |
CN205716201U (en) | A kind of net tetrafluoro combined compensator | |
CN205716199U (en) | A kind of note tamps tight combined type direct current Zero-thrust sleeve type compensator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171027 |