CN203837011U - Flag-type heating surface structure for corner tube boiler - Google Patents
Flag-type heating surface structure for corner tube boiler Download PDFInfo
- Publication number
- CN203837011U CN203837011U CN201420130046.0U CN201420130046U CN203837011U CN 203837011 U CN203837011 U CN 203837011U CN 201420130046 U CN201420130046 U CN 201420130046U CN 203837011 U CN203837011 U CN 203837011U
- Authority
- CN
- China
- Prior art keywords
- coiled pipe
- header
- heating surface
- coil
- boiler
- 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
- 238000010438 heat treatment Methods 0.000 title abstract description 15
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000001771 impaired effect Effects 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a flag-type heating surface structure for a corner tube boiler and belongs to the field of boilers. The corner tube boiler comprises a coil (1), a membrane wall (2), an upper header (3), an intermediate header (4) and pipe joints (5), wherein the upper header (3) and the intermediate header (4) are placed on the outer side of the membrane wall (2); the coil (1) penetrates the membrane wall (2) and is connected with the upper header (3) and the intermediate header (4) through the pipe joints (5); the coil (1), the upper header (3) and the intermediate header (4) form an independent convection loop. According to the utility model, as the coil and the membrane wall are separated to form an independent circulation loop, only the damaged coil needs to be replaced during maintenance without influencing the membrane wall, and accordingly, the maintenance process is simple; meanwhile, the production technology process of the boiler is simplified, and the problem of low-temperature corrosion of the tail heating surface is solved.
Description
Technical field
The utility model relates to a kind of boiler heating surface structure, and specifically a kind of corner tube boiler Flag pattern heat surface structure, belongs to boiler heating surface field.
Background technology
Corner tube boiler is listed in one of substitute products of Industrial Boiler renewal by country, this boiler drum is external, and burner hearth and back-end ductwork surrounding all adopt fully closed fin panel casing, have good seal performance, the feature that the thermal efficiency is high.Flag pattern heat surface is one of critical component of corner tube boiler, as shown in Figure 4 and Figure 5, it be by coiled pipe bond pads on fin panel casing, coiled pipe communicates with monowall tube, the heating surface that forms picture one side face flag, in unit space, expand as far as possible heating surface area, to reach high efficiency, complete the object of heat exchange.But, because coiled pipe group and fin panel casing are integral solder structure, once coiled pipe group is impaired, need to change, must blowing out, cooling, then fin panel casing and coiled pipe group integral cutting are got off to change, not only easy-maintaining not, and maintenance time is long, and hot-water boiler is all generally for warming, if maintenance time is long, to boiler heating, certainly will impact.
Summary of the invention
The purpose of this utility model is to provide a kind of corner tube boiler Flag pattern heat surface structure, forms independent water-flow circuit, when coiled pipe convection heating surface is impaired, can to it, process separately, does not affect the normal operation of boiler.
For achieving the above object, this corner tube boiler Flag pattern heat surface structure, comprise coiled pipe, fin panel casing, upper collecting chamber, middle header and pipe joint, coiled pipe passes between monowall tube, upper collecting chamber and middle header are placed in fin panel casing outside, by pipe joint, be connected with coiled pipe respectively, coiled pipe, upper collecting chamber and middle header form an independently water-flow circuit.
Beneficial effect: the one, facilitate Maintenance of Boiler.Flag pattern heat surface of the present invention and fin panel casing are separated, form independently closed circuit, when certain, coiled pipe convection heating surface is impaired while affecting work, only need between fin panel casing outside is by this coiled pipe and header, block, shutoff, does not affect normal operation of boiler.During maintenance, as long as change impaired coiled pipe, fin panel casing is not produced to any impact, maintenance process is simple.The 2nd, simplify boiler for producing technological process.In prior art, normal for guaranteeing coiled pipe water circulation, need to add in monowall tube inside baffled; Coiled pipe of the present invention is independent loop, need not add baffledly in monowall tube again, and it is simple that production technology becomes.The 3rd, solved back-end surfaces cold end corrosion problem.Back-end surfaces cold end corrosion is the SO in flue gas
2be dissolved in the dew of low temperature heating surface surface condensation, the strong corrosion that metal is produced, is generally that flue gas and recirculated water all easily occur when low-temperature condition.In prior art, coiled pipe forms loop together with fin panel casing, and cold water circulates from bottom to top, at boiler tail flue gas and water, all at low-temperature space, cold end corrosion easily occurs; Coiled pipe of the present invention is independent loop, and cold water circulates from the top down, and the flue gas of high temperature meets with the cold water of low temperature, causes the condition of cold end corrosion not exist.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial top view of Fig. 1;
Fig. 3 is the schematic diagram of the utility model preferred embodiment;
Fig. 4 is the structural representation of prior art;
Fig. 5 is the partial top view of Fig. 4.
The specific embodiment
As depicted in figs. 1 and 2, a kind of corner tube boiler Flag pattern heat surface structure, comprise coiled pipe 1, fin panel casing 2, upper collecting chamber 3, middle header 4 and pipe joint 5, upper collecting chamber 3 and middle header 4 are placed in fin panel casing 2 outsides, coiled pipe 1 is from passing (as shown in Figure 2) between monowall tube 6, by pipe joint 5, be connected with middle header 4 with upper collecting chamber 3, coiled pipe 1, upper collecting chamber 3 and middle header 4 are separated with fin panel casing, form an independently water-flow circuit.
During work, cold water enters from upper collecting chamber 3, flows to coiled pipe 1 and is heated, and enters middle header 4 carry out entering next stage coiled pipe 1 and middle header 4 after heat exchange again through the hot water of 1 li of the different coiled pipe of heating, and finally enters circulating line.When certain, coiled pipe 1 convection heating surface is impaired while affecting work, only need between fin panel casing 2 outsides are by this coiled pipe 1 and middle header 4, block, shutoff, does not affect normal operation of boiler.Maintenance work can be carried out after heating finishes blowing out in season.
Further, as shown in Figure 3, be convenient maintenance, between coiled pipe and pipe joint, be provided with stop valve 7, once coiled pipe 1 heating surface is impaired, as long as stop valve 7 is shut.
Claims (2)
1. a corner tube boiler Flag pattern heat surface structure, comprise coiled pipe (1) and fin panel casing (2), it is characterized in that, also comprise upper collecting chamber (3), middle header (4) and pipe joint (5), described upper collecting chamber (3) and middle header (4) are placed in fin panel casing (2) outside; Coiled pipe (1) passes between monowall tube (6), by pipe joint (5), is connected with middle header (4) with upper collecting chamber (3), and coiled pipe (1), upper collecting chamber (3) and middle header (4) form an independently water-flow circuit.
2. corner tube boiler Flag pattern heat surface structure according to claim 1, is characterized in that: between coiled pipe (1) and pipe joint (5), be also provided with stop valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420130046.0U CN203837011U (en) | 2014-03-21 | 2014-03-21 | Flag-type heating surface structure for corner tube boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420130046.0U CN203837011U (en) | 2014-03-21 | 2014-03-21 | Flag-type heating surface structure for corner tube boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837011U true CN203837011U (en) | 2014-09-17 |
Family
ID=51514843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420130046.0U Expired - Lifetime CN203837011U (en) | 2014-03-21 | 2014-03-21 | Flag-type heating surface structure for corner tube boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837011U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196150A (en) * | 2016-08-20 | 2016-12-07 | 江苏太湖锅炉股份有限公司 | A kind of circular group box-like coil burner hearth is heated the burner hearth of cellular construction and composition thereof |
| CN112377893A (en) * | 2020-12-01 | 2021-02-19 | 上海工业锅炉研究所有限公司 | Biomass corner tube boiler water circulation system is fired in four return strokes of single-boiler section of thick bamboo |
| CN112460571A (en) * | 2020-12-22 | 2021-03-09 | 华能陇东能源有限责任公司 | Water cooling wall penetrating structure for low-temperature heating surface of tower furnace and installation method |
-
2014
- 2014-03-21 CN CN201420130046.0U patent/CN203837011U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196150A (en) * | 2016-08-20 | 2016-12-07 | 江苏太湖锅炉股份有限公司 | A kind of circular group box-like coil burner hearth is heated the burner hearth of cellular construction and composition thereof |
| CN112377893A (en) * | 2020-12-01 | 2021-02-19 | 上海工业锅炉研究所有限公司 | Biomass corner tube boiler water circulation system is fired in four return strokes of single-boiler section of thick bamboo |
| CN112460571A (en) * | 2020-12-22 | 2021-03-09 | 华能陇东能源有限责任公司 | Water cooling wall penetrating structure for low-temperature heating surface of tower furnace and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 221000 China Resources Industrial Park, Huaihai International Port District, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Sifang Clean Energy Equipment Manufacturing Co.,Ltd. Address before: 221142 China Resources Industrial Park, Tongshan, Xuzhou, Jiangsu Province Patentee before: JIANGSU SIFANG BOILER Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |
|
| CX01 | Expiry of patent term |