CN205877549U - Power plant's flue gas is with taking complicated pipeline of branch pipe - Google Patents
Power plant's flue gas is with taking complicated pipeline of branch pipe Download PDFInfo
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- CN205877549U CN205877549U CN201620906300.0U CN201620906300U CN205877549U CN 205877549 U CN205877549 U CN 205877549U CN 201620906300 U CN201620906300 U CN 201620906300U CN 205877549 U CN205877549 U CN 205877549U
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- politef
- pipeline
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Abstract
The utility model belongs to the technical field of the pipeline, a power plant's flue gas is with taking complicated pipeline of branch pipe is disclosed. Its main technical characteristics does: include trunk line body and the small transfer line body that is located this trunk line body side the trunk line body outside and the spiral overlap joint winding of the small transfer line body outside have inlayer PTFE membrane to take the winding of inlayer PTFE membrane outband side spiral overlap joint has middle level PTFE membrane to take middle level PTFE membrane outband side spiral overlap joint winding has outer PTFE membrane area. The pipeline that will twine passes through the high -sintering, inlayer PTFE membrane area, middle level PTFE membrane area and outer PTFE membrane area are sintered into high strength corrosion -resistant layer, this corrosion -resistant layer is a body structure with trunk line body and small transfer line body, droing of corrosion -resistant layer has been avoided, long service lifetime, good corrosion -resisting property, be difficult to drop between corrosion -resistant layer and trunk line body and the small transfer line body, especially, be difficult to drop at the corrosion -resistant layer of trunk line body with combination department of small transfer line body.
Description
Technical field
This utility model belongs to pipe technology field, particularly relates to a kind of power-plant flue gas band arm complexity pipeline.
Background technology
Pipeline corrosion protection problem is always a highly important research topic in coal steam-electric plant smoke system.Flue gas is through removing
After dirt device, need to pass sequentially through heat exchanger, desulfurizing tower, heat exchanger and chimney.Owing to flue gas containing SO2、NOx, the acid such as HCl, HF
Property and corrosive gas, these gases at a certain temperature can be with the metal generation chemical reaction in pipeline, by metal erosion.
Meanwhile, the pipeline in flue gas also suffers from electrochemical corrosion and erosion corrosion, and the pipeline in desulfurizing tower can be by crystal corrosion.
Existing for flue antiseptical technology be broadly divided into two kinds: one be use corrosion resistant steel alloy manufacture pipe
Road.The steel alloy candidate materials that may be used for pipeline corrosion protection at present includes low-carbon alloy steel (such as 316L, 317L etc.), nickel-base alloy
Steel (such as Hastelloy steel C276) and composite.But the cost of steel alloy is high, is only used for some key positions；Two be
Organic material anticorrosive coat is increased on the body of original carbon steel.The material being commonly used for organic anti-corrosive layer includes glass flake tree
Fat and rubber lining.Wherein scale anticorrosion has the lowest water vapour permeability, has preferable resistance to chemical attack；Line with rubber anticorrosion
There is higher mar proof and thermostability.But this technology is suitable only for the anticorrosion of simply pipeline, and to arm
Complicated pipeline, anticorrosive coat is difficult to be mounted and fixed on its surface, and the particularly corner at arm and supervisor is easy to rotten
Erosion and abrasion.
Utility model content
Problem to be solved in the utility model is just to provide a kind of corrosion resistance and good, the power-plant flue gas of length in service life is used
Band arm complexity pipeline.
For solving the problems referred to above, the technical scheme that this utility model power-plant flue gas band arm complexity pipeline uses is: bag
Include main pipeline body and be positioned at the branch pipe(tube) body of this this body side surface of main pipeline, in described main pipeline outer body and branch pipe(tube) basis
Body outer helical overlap joint is wound with internal layer politef film strips, twines at described internal layer politef film strips outer helical overlap joint
It is wound with middle level politef film strips, is wound with outer layer polytetrafluoroethyl-ne at described middle level politef film strips outer helical overlap joint
Alkene film strips.
Its additional technical feature is:
Described middle level politef film strips includes 26 layers of segregation tetrafluoroethene film strips, described internal layer poly tetrafluoroethylene
Band, segregation tetrafluoroethene film strips and outer layer politef film strips thickness ratio for 2:1:3；
The helical angle that described internal layer politef film strips is wound around is 40 50 degree, and described internal layer politef film strips is taken
The ratio connecing width and internal layer poly tetrafluoroethylene bandwidth is 1:2；The helical angle that described middle level politef film strips is wound around is
30 40 degree, described middle level politef film strips lap width is 2:5 with the ratio of middle level poly tetrafluoroethylene bandwidth；Described
The helical angle that outer layer politef film strips is wound around is 42 45 degree, described outer layer politef film strips lap width and outer layer
The ratio of poly tetrafluoroethylene bandwidth is 2:3.
Power-plant flue gas band arm complexity pipeline provided by the utility model compared with prior art, has following excellent
Point: one, owing to including main pipeline body and being positioned at the branch pipe(tube) body of this this body side surface of main pipeline, at described main pipeline body
Outside and branch pipe(tube) outer body spiral overlap joint are wound with internal layer politef film strips, in described internal layer politef film strips
Outer helical overlap joint is wound with middle level politef film strips, is wound around at described middle level politef film strips outer helical overlap joint
There are outer layer politef film strips, internal layer politef film strips, middle level politef film strips and outer layer poly tetrafluoroethylene
Band is respectively screw and is wrapped in main pipeline body and branch pipe(tube) outer body, then the pipeline wound is passed through high temperature sintering, interior
Strata tetrafluoroethene film strips, middle level politef film strips and outer layer politef film strips are sintered into high-strength corrosion-resisting
Layer, this anti-corrosion layer and main pipeline body and branch pipe(tube) body be integrative-structure, it is to avoid coming off of anti-corrosion layer, service life
It is not easy to come off between length, corrosion resistance and good, anti-corrosion layer and main pipeline body and branch pipe(tube) body, especially at main pipeline originally
Body is not easy to come off with the anti-corrosion layer of branch pipe(tube) body junction；Its two, owing to described middle level politef film strips includes
26 layers of segregation tetrafluoroethene film strips, described internal layer politef film strips, segregation tetrafluoroethene film strips and outer layer polytetrafluoroethyl-ne
The thickness of alkene film strips ratio for 2:1:3, is not only easy to be wound around, and is not easy to come off after sintering；Its three, due to described interior strata four
The helical angle that fluorothene film strips is wound around is 40 50 degree, described internal layer politef film strips lap width and internal layer polytetrafluoroethyl-ne
The ratio of alkene film strips width is 1:2；The helical angle that described middle level politef film strips is wound around is 30 40 degree, described middle strata four
Fluorothene film strips lap width is 2:5 with the ratio of middle level poly tetrafluoroethylene bandwidth；Described outer layer politef film strips twines
Around helical angle be 42 45 degree, described outer layer politef film strips lap width and outer layer poly tetrafluoroethylene bandwidth it
Ratio is 2:3, so, is not only easy to be wound around, and is not easy to come off after sintering.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model power-plant flue gas band arm complexity pipeline；
Fig. 2 is the power-plant flue gas band arm complexity pipeline structural representation along main pipeline body axial section；
Fig. 3 is on the structural representation of power-plant flue gas band arm complexity pipeline main pipeline body radial section.
Detailed description of the invention
Below in conjunction with the accompanying drawings with detailed description of the invention to this utility model power-plant flue gas structure of band arm complexity pipeline
It is described in further details with use principle.
As shown in Figure 1, Figure 2 and Figure 3, this utility model power-plant flue gas structural representation of band arm complexity pipeline, this
Utility model power-plant flue gas band arm complexity pipeline includes main pipeline body 1 and is positioned at the arm of this main pipeline body 1 side
Road body 2, overlaps be wound with internal layer politef film strips 3 with branch pipe(tube) body 2 outer helical outside main pipeline body 1,
It is wound with middle level politef film strips 4, at middle level poly tetrafluoroethylene at internal layer politef film strips 3 outer helical overlap joint
4 outer helical overlap joints are carried to be wound with outer layer politef film strips 5.Internal layer politef film strips 3, middle level poly tetrafluoroethylene
Band 4 and outer layer politef film strips 5 are respectively screw and are wrapped in outside main pipeline body 1 and branch pipe(tube) body 2, then will be wound around
Good pipeline is by high temperature sintering, internal layer politef film strips 3, middle level politef film strips 4 and outer layer politef
Film strips 5 is sintered into high-strength corrosion-resisting layer, and this anti-corrosion layer is integrative-structure with main pipeline body and branch pipe(tube) body, it is to avoid
Coming off of anti-corrosion layer, service life length, corrosion resistance and good, between anti-corrosion layer and main pipeline body and branch pipe(tube) body
Being not easy to come off, the especially anti-corrosion layer at main pipeline body with branch pipe(tube) body junction is not easy to come off.
Middle level politef film strips 4 includes four layers of segregation tetrafluoroethene film strips 41, internal layer politef film strips 3, point
The thickness of politef film strips 41 and outer layer politef film strips 5 ratio for 2:1:3, is not only easy to be wound around, and after sintering
It is not easy to come off.It is of course also possible to as required, segregation tetrafluoroethene film strips 41 can be 26 layers.
The helical angle that internal layer politef film strips 3 is wound around is 40 50 degree, internal layer politef film strips 3 lap width
It is 1:2 with the ratio of internal layer politef film strips 3 width；The helical angle that middle level politef film strips 4 is wound around is 30 40 degree,
Middle level politef film strips 4 lap width is 2:5 with the ratio of middle level politef film strips 4 width；Outer layer politef
The helical angle that film strips 5 is wound around is 42 45 degree, outer layer politef film strips 5 lap width and outer layer politef film strips 5
The ratio of width is 2:3, so, is not only easy to be wound around, and is not easy to come off after sintering.
Protection domain of the present utility model is not limited solely to above-described embodiment, if structure and this utility model power plant cigarette
Gas band arm complexity pipeline configuration is identical, just falls in the scope of this utility model protection.
Claims (3)
1. power-plant flue gas band arm complexity pipeline, including main pipeline body and the branch pipe(tube) basis being positioned at this this body side surface of main pipeline
Body, it is characterised in that: overlap at described main pipeline outer body and branch pipe(tube) outer body spiral and be wound with internal layer polytetrafluoroethyl-ne
Alkene film strips, is wound with middle level politef film strips, in described at described internal layer politef film strips outer helical overlap joint
Strata tetrafluoroethene film strips outer helical overlap joint is wound with outer layer politef film strips.
Power-plant flue gas band arm complexity pipeline the most according to claim 1, it is characterised in that: described middle level polytetrafluoroethyl-ne
Alkene film strips includes 26 layers of segregation tetrafluoroethene film strips, described internal layer politef film strips, segregation tetrafluoroethene film strips and outer
The thickness of strata tetrafluoroethene film strips is than for 2:1:3.
Power-plant flue gas band arm complexity pipeline the most according to claim 1, it is characterised in that: described internal layer polytetrafluoroethyl-ne
The helical angle that alkene film strips is wound around is 40 50 degree, described internal layer politef film strips lap width and internal layer poly tetrafluoroethylene
The ratio of bandwidth is 1:2；The helical angle that described middle level politef film strips is wound around is 30 40 degree, described middle level polytetrafluoroethyl-ne
Alkene film strips lap width is 2:5 with the ratio of middle level poly tetrafluoroethylene bandwidth；Described outer layer politef film strips is wound around
Helical angle is 42 45 degree, and described outer layer politef film strips lap width with the ratio of outer layer poly tetrafluoroethylene bandwidth is
2:3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620906300.0U CN205877549U (en) | 2016-08-21 | 2016-08-21 | Power plant's flue gas is with taking complicated pipeline of branch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620906300.0U CN205877549U (en) | 2016-08-21 | 2016-08-21 | Power plant's flue gas is with taking complicated pipeline of branch pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205877549U true CN205877549U (en) | 2017-01-11 |
Family
ID=57704745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620906300.0U Active CN205877549U (en) | 2016-08-21 | 2016-08-21 | Power plant's flue gas is with taking complicated pipeline of branch pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205877549U (en) |
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2016
- 2016-08-21 CN CN201620906300.0U patent/CN205877549U/en active Active
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