CN203731371U - Horizontal coal-fired boiler coiled pipe limit structure - Google Patents
Horizontal coal-fired boiler coiled pipe limit structure Download PDFInfo
- Publication number
- CN203731371U CN203731371U CN201420068517.XU CN201420068517U CN203731371U CN 203731371 U CN203731371 U CN 203731371U CN 201420068517 U CN201420068517 U CN 201420068517U CN 203731371 U CN203731371 U CN 203731371U
- Authority
- CN
- China
- Prior art keywords
- convection bank
- band steel
- coiled pipe
- limiting tube
- convection
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 239000011449 brick Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model relates to a horizontal coal-fired boiler coiled pipe limit structure, wherein coiled pipes at a convection section are divided into a first convection bank and a second convection bank by a smoke-blocking wall; the first convection bank comprises first limit pipes for limiting and a first flat steel, the first limit pipe is arranged between tops of each adjacent coiled pipes in the first convection bank, the first flat steel is arranged on the upper surface of the first convection bank, the first flat steel is welded with the tops of the first limit pipes, and the contact part between the first flat steel and the first convection bank is spot welded; the second convection bank comprises second limit pipes for limiting and a second flat steel, the second limit pipe is arranged between tops of each adjacent coiled pipes in the second convection bank, the second flat steel is arranged on the upper surface of the second convection bank, the second flat steel is welded with the tops of the second limit pipes, and the contact part between the second flat steel and the second convection bank is spot welded. The horizontal coal-fired boiler coiled pipe limit structure is simple in structure and convenient to mount and use, and can well limit the positions of the coiled pipes, enable spacing among the coiled pipes to be uniform and improve the heat exchange effect of the boiler.
Description
Technical field
The utility model relates to a kind of horizontal coal-fired boiler coils position limiting structure, belongs to boiler coils interconnection technique field.
Background technology
At present, boiler of organic heat carrier is used widely.According to horizontal coal-fired boiler of organic heat carrier design feature, the convection heating surface of boiler adopts the version of coiled pipe conventionally, and every group of convection heating surface is made up of some coiled pipes.Jumbo boiler coils is because needs are arranged certain many heating surfaces, and in the situation that pipe radical is certain, the height of coiled pipe pipe fitting is very high.But coiled pipe pipe fitting reach a certain height, rear tubular member rigidity can decline to some extent.After operation after a while, find, coiled pipe is heated for a long time modification easily occurs under hot environment, and even two coiled pipes can even be close together, and flue is blocked, and cause flue gas short circuit can not effectively carry out heat exchange, have a strong impact on the normal operation of boiler; Therefore should make the spacing between coiled pipe consistent, to reach the even of flue gas flow rate.
Summary of the invention
The purpose of this utility model is the not smooth shortcoming of flue gas that coiled pipe temperature distortion causes when overcoming horizontal coal-fired boiler of organic heat carrier operation in prior art, a kind of position limiting structure of coiled pipe is provided, position easy for installation and can be good at limiting coiled pipe, guarantees that the spacing of every coiled pipe is even.
The technical solution adopted in the utility model is as follows: a kind of horizontal coal-fired boiler coils position limiting structure, comprise the coiled pipe of convection section, the coiled pipe of described convection section is divided into the first convection bank and two regions of the second convection bank by brick baffle, the first convection bank comprises for the first spacing position-limiting tube and the first band steel, in described the first convection bank, between the top of every coiled pipe, be provided with the first position-limiting tube, the upper surface of described the first convection bank is provided with the first band steel, the welded top of described the first band steel and the first position-limiting tube, described the first band steel two ends and the middle local spot welding contacting with the first convection bank,
Described the second convection bank comprises for the second spacing position-limiting tube and the second band steel, in described the second convection bank, between the top of every coiled pipe, be provided with the second position-limiting tube, the upper surface of described the second convection bank is provided with the second band steel, the welded top of described the second band steel and the second position-limiting tube, described the second band steel two ends and the middle local spot welding contacting with the second convection bank;
Further, the length of described the first position-limiting tube and the second position-limiting tube is 650 mm.
Further, in described the first convection bank, the diameter of the first position-limiting tube is φ
1=k1-d-2, wherein k
1for self heating power of boiler, k
1scope be 60～130 mm, the diameter that d is coiled pipe, the diameter of coiled pipe is 38 mm or 45 mm, the diameter phi of the first position-limiting tube
1be 20～80 mm; In the first convection bank, the length of the first band steel is a
1, a
1≈ n × k
1, wherein n in each region, comprise the sheet number of coiled pipe, the width b of the first band steel
1, b
1≈ 20+ φ
1.
Further, in described the second convection bank, the diameter of the second position-limiting tube is φ
2=k
2-d-2, wherein k
2for self heating power of boiler, k
2scope be 60～130 mm, the diameter that d is coiled pipe, the diameter of coiled pipe is 38 mm or 45 mm, the diameter phi of the second position-limiting tube
2size be 20～80 mm; The length of the second band steel is a
2, a
2≈ n × k
2, the sheet number that wherein n is the coiled pipe that comprises in each region, the width b of the second band steel
2, b
2≈ 20+ φ
2.
Further, in described the first convection bank, the first position-limiting tube and the first band steel adopt material high-alloy stainless steel 06Cr19Ni10 to make.
Further, in described the second convection bank, the second position-limiting tube and the second band steel adopt material carbon steel 20 to make.
The utility model is simple in structure, easy to install, can limit well the position of coiled pipe, make every coiled pipe pitch arrangement even, make sweep of gases even, the heat transfer effect of boiler can be effectively improved, and the drawback of the stifled ash that coiled pipe temperature distortion brings can be effectively prevented.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Reference numeral: coiled pipe 1, the first position-limiting tube 2-1, the first band steel 3-1, the second position-limiting tube 2-2, the second band steel 3-2, brick baffle 4, the first convection bank 5, the second convection bank 6, gas approach 7, exhanst gas outlet 8.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As Figure 1-Figure 2, a kind of position limiting structure of Horizontal coal stoves coiled pipe, comprise the coiled pipe 1 of convection section, the coiled pipe 1 of convection section is divided into the first convection bank 5 and 6 two regions of the second convection bank by brick baffle 4, the first convection bank 5 comprises for the first spacing position-limiting tube 2-1 and the first band steel 3-1, in the first convection bank 5, between the top of every coiled pipe, be provided with the first position-limiting tube 2-1, the first spacing pipe range 650mm, the first position-limiting tube 2-1 is arranged at apart from the first convection bank 5 center line 3/5 positions, the upper surface of described the first convection bank 5 is provided with the first band steel 3-1, the welded top of described the first band steel 3-1 and the first position-limiting tube 2-1, described the first band steel 3-1 two ends and the middle local spot welding 3-4 place contacting with the first convection bank 5,
Described the second convection bank 6 comprises for the second spacing position-limiting tube 2-2 and the second band steel 3-2, in described the second convection bank 6, between the top of every coiled pipe, be provided with the second position-limiting tube 2-2, the second position-limiting tube 2-2 length is 650mm, the second position-limiting tube 2-2 is arranged at apart from the second convection bank 6 center line 3/5 positions, the upper surface of described the second convection bank 6 is provided with the second band steel 3-2, the welded top of described the second band steel 3-2 and the second position-limiting tube 2-2, described the second band steel 2-2 two ends and the middle local spot welding 3-4 place contacting with the second convection bank 6
In the first convection bank 5, the diameter of the first position-limiting tube 2-1 is φ
1=k
1-d-2, wherein k
1for self heating power of boiler, k
1scope be 60～130 mm, the diameter that d is coiled pipe, the diameter of coiled pipe is 38 mm or 45 mm, the diameter phi of the first position-limiting tube 2-1
1be 20～80 mm; In the first convection bank, the length of the first band steel 3-1 is a
1, a
1≈ n × k
1, wherein n in each region, comprise the sheet number of coiled pipe, the width b of the first band steel 3-1
1, b
1≈ 20+ φ
1; The material of position-limiting tube 2 and band steel 3 is selected according to flue-gas temperature, the first convection bank 5 is gas approach 7, the temperature of common the first convection bank 5 import position-limiting tubes 2 and band steel 3 is generally 850 DEG C of left and right, and therefore, steel pipe material adopts high-alloy stainless steel 06Cr19Ni10.
In the second convection bank 6, the diameter of the second position-limiting tube 2-2 is φ
2=k
2-d-2, wherein k
2for self heating power of boiler, k
2scope be 60～130 mm, the diameter that d is coiled pipe, the diameter of coiled pipe is 38 mm or 45 mm, the diameter phi of the second position-limiting tube 2-2
2size be 20～80 mm; The length of the second band steel 3-2 is a
2, a
2≈ n × k
2, the sheet number that wherein n is the coiled pipe that comprises in each region, the width b of the second band steel 3-2
2, b
2≈ 20+ φ
2; The second convection bank 6 be the temperature of the second position-limiting tube 2-2 and the second band steel 3-2 in exhanst gas outlet 8, the second convection banks 6 generally 450 DEG C of left and right, therefore, the material of the second position-limiting tube 2-2 and the second band steel 3-2 adopts carbon steel 20.
The utility model can not only well limit the spacing between coiled pipe, can also play firm effect to coiled pipe, and the heat transfer effect that effectively improves boiler can also prevent the stifled grey drawback causing because of coiled pipe temperature distortion.
Claims (6)
1. a horizontal coal-fired boiler coils position limiting structure, it is characterized in that: the coiled pipe (1) that comprises convection section, the coiled pipe (1) of described convection section is divided into the first convection bank (5) and (6) two regions of the second convection bank by brick baffle (4), the first convection bank (5) comprises for spacing the first position-limiting tube (2-1) and the first band steel (3-1), in described the first convection bank (5), between the top of every coiled pipe, be provided with the first position-limiting tube (2-1), the upper surface of described the first convection bank (5) is provided with the first band steel (3-1), the welded top of described the first band steel (3-1) and the first position-limiting tube (2-1), described the first band steel (3-1) two ends and the middle local spot welding contacting with the first convection bank (5),
Described the second convection bank (6) comprises for spacing the second position-limiting tube (2-2) and the second band steel (3-2), in described the second convection bank (6), between the top of every coiled pipe, be provided with the second position-limiting tube (2-2), the upper surface of described the second convection bank (6) is provided with the second band steel (3-2), the welded top of described the second band steel (3-2) and the second position-limiting tube (2-2), described the second band steel (2-2) two ends and the middle local spot welding contacting with the second convection bank (6).
2. the snakelike position limiting structure of the horizontal coal-fired boiler of one as claimed in claim 1, is characterized in that: the length of described the first position-limiting tube (2-1) and the second position-limiting tube (2-2) is 650 mm.
3. the snakelike position limiting structure of the horizontal coal-fired boiler of one as claimed in claim 1, is characterized in that: in described the first convection bank (5), the diameter of the first position-limiting tube (2-1) is φ
1=k
1-d-2, wherein k
1for self heating power of boiler, k
1scope be 60～130 mm, the diameter that d is coiled pipe, the diameter of coiled pipe is 38 mm or 45 mm, the diameter phi of the first position-limiting tube (2-1)
1be 20～80 mm; In the first convection bank, the length of the first band steel (3-1) is a
1, a
1≈ n × k
1, the sheet number that wherein n is the coiled pipe that comprises in each region, the width b of the first band steel (3-1)
1, b
1≈ 20+ φ
1.
4. the snakelike position limiting structure of the horizontal coal-fired boiler of one as claimed in claim 1, is characterized in that: in described the second convection bank (6), the diameter of the second position-limiting tube (2-2) is φ
2=k
2-d-2, wherein k
2for self heating power of boiler, k
2scope be 60～130 mm, the diameter that d is coiled pipe, the diameter of coiled pipe is 38 mm or 45 mm, the diameter phi of the second position-limiting tube (2-2)
2size be 20～80 mm; The length of the second band steel (3-2) is a
2, a
2≈ n × k
2, the sheet number that wherein n is the coiled pipe that comprises in each region, the width b of the second band steel (3-2)
2, b
2≈ 20+ φ
2.
5. the snakelike position limiting structure of the horizontal coal-fired boiler of one as claimed in claim 1, is characterized in that: in the first convection bank (5), the first position-limiting tube (2-1) and the first band steel (3-1) adopt material high-alloy stainless steel 06Cr19Ni10 to make.
6. the snakelike position limiting structure of the horizontal coal-fired boiler of one as claimed in claim 1, is characterized in that: in the second convection bank (6), the second position-limiting tube (2-2) and the second band steel (3-2) adopt material carbon steel 20 to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068517.XU CN203731371U (en) | 2014-02-17 | 2014-02-17 | Horizontal coal-fired boiler coiled pipe limit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068517.XU CN203731371U (en) | 2014-02-17 | 2014-02-17 | Horizontal coal-fired boiler coiled pipe limit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203731371U true CN203731371U (en) | 2014-07-23 |
Family
ID=51201440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420068517.XU Expired - Lifetime CN203731371U (en) | 2014-02-17 | 2014-02-17 | Horizontal coal-fired boiler coiled pipe limit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203731371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591998A (en) * | 2018-06-25 | 2018-09-28 | 上海工业锅炉无锡有限公司 | A kind of limiting device and coiled pipe between coiled pipe in boiler flue |
-
2014
- 2014-02-17 CN CN201420068517.XU patent/CN203731371U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591998A (en) * | 2018-06-25 | 2018-09-28 | 上海工业锅炉无锡有限公司 | A kind of limiting device and coiled pipe between coiled pipe in boiler flue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |