CN201964388U - Gas fired boiler tube bank evaporation convection heating device - Google Patents
Gas fired boiler tube bank evaporation convection heating device Download PDFInfo
- Publication number
- CN201964388U CN201964388U CN2011200347288U CN201120034728U CN201964388U CN 201964388 U CN201964388 U CN 201964388U CN 2011200347288 U CN2011200347288 U CN 2011200347288U CN 201120034728 U CN201120034728 U CN 201120034728U CN 201964388 U CN201964388 U CN 201964388U
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- Prior art keywords
- evaporation convection
- evaporation
- tube bank
- bank
- heating device
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Abstract
The utility model discloses a gas fired boiler tube bank evaporation convection heating device which comprises a vapor water outlet pipe, an upper collecting box, a descending water supply pipe, a lower collecting box, an evaporation convection tube bank, an evaporation convection tube bank intermediate support, an evaporation convection tube bank end support, and a collecting box support, and is characterized in that the evaporation convection tube bank consists of a plurality of evaporation convection tube bank units, each evaporation convection tube bank unit consists of inverted U-shaped spiral finned tubes which form same inclination angles with the level surface, and two ends of each spiral finned tube are respectively connected between the upper collecting box and the lower collecting box. In the utility model, as the evaporation convection heating device does not need to be arranged between an upper steam pocket and a lower steam pocket, the lower steam pocket can be not arranged, so as to save the manufacturing cost, be flexible in arrangement position, greatly reduce arrangement space, and be simple in structure, and easy in disassembly, assembly and overhauling.
Description
Technical field
The utility model relates to a kind of gas fired-boiler tube bank evaporation convection current heating device.
Background technology
Gas fired-boiler is when using low calorie fuels, and the furnace wall cooling caloric receptivity is less relatively, requires afterbody to arrange a large amount of economizer surfaces, it is too much that economizer surface is arranged, the rate of gasification of economizer will significantly improve, and the resistance of economizer is increased, and increase the power consumption of feed pump.This just requires to adopt tube bank evaporation convection current heating device, traditional convection bank evaporation convection current heating device is arranged between the water drum, tube bank evaporation convection current heating device commonly used at present need be provided with water drum, be vertical layout, increase floor space and manufacturing cost, adopting tubing is light pipe, and its heat transfer efficiency is lower.
Summary of the invention
The purpose of this utility model provides does not a kind ofly need to be arranged between the water drum, compact conformation, floor space is few, heat transfer efficiency is high gas fired-boiler tube bank evaporation convection current heating device.
The utility model comprises that carbonated drink fairlead, upper collecting chamber, decline feed pipe, next part case, evaporation convection bank, evaporation convection bank intermediate supports, evaporation convection bank end portion supports, collection case support; The evaporation convection bank is made up of several evaporation convection bank unit, each evaporation convection bank unit vertically rearranges by forming the identical inverted U-shaped spiral fin coil of being in inclination angle with level, every spiral fin coil two ends are connected between the next part case, decline feed pipe one end links to each other with the drum lower end, one end links to each other with the next part case, carbonated drink fairlead one end links to each other with drum, and an end links to each other with upper collecting chamber; Last next part case is by collection case support fixation, and evaporation convection bank unit forms a whole by convection bank intermediate supports and convection bank end portion supports and be fixing.
The utility model can not be provided with water drum because of not needing to be arranged between the water drum, has saved manufacturing cost, and position is more flexible; Significantly reduce arrangement space; Adopt spiral fin coil to increase heat transfer efficiency, with flue gas heat exchange be countercurrent heat-transfer, heat transfer temperature difference is big, when making flue gas reduce identical temperature, compares with tradition evaporation convection bank, requisite space reduces a lot; Simple in structure, dismounting and maintenance are easily.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
In the accompanying drawing: 1. carbonated drink fairlead, 2. upper collecting chamber, 3. decline feed pipe, 4. next part case, 5. evaporation convection bank unit, 6. convection bank intermediate supports, 7. convection bank end portion supports, 8. the collection case supports, 9. furnace wall, 10. framework.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
In Fig. 1, the utility model saturation water flows to next part case 4 through decline feed pipe 3 from drum, the evaporation convection bank and the flue gas that connect by next part case 4 carry out heat exchange generation steam, steam water interface enters upper collecting chamber 2, enters the drum headroom by two carbonated drink fairleads 1 identical with decline feed pipe 3 specifications; Last next part case supports 8 by the collection case and is fixed on the framework, the evaporation convection bank is made up of some evaporation convection banks unit 5, each evaporation convection bank unit 5 is made up of four identical inverted U-shaped spiral fin coils that are in inclination angle, and the evaporation convection bank is fixed by convection bank intermediate supports 6 and convection bank end portion supports 7.
Each evaporation convection bank unit by with level form the inclination angle identical be inverted U-shaped four spiral fin coils and vertically rearrange the time, effect is preferable.
Above-mentioned gas fired-boiler tube bank evaporation convection current heating device adopts identical carbonated drink fairlead of specification and decline feed pipe respectively, the section ratio of fairlead and tedge and down-comer and tedge is 0.2～0.4, evaporation convection bank unit circulating ratio is 10～15, it is 5 °～9 ° that every spiral fin coil has identical angle with level, and it has good self compensation; The employing pitch of fin is the evaporation convection bank unit that 12mm, wing height are made for the spiral fin coil of 15mm, has improved heat transfer efficiency.
Claims (5)
1. a gas fired-boiler tube bank evaporation convection current heating device is supported and is formed by carbonated drink fairlead, upper collecting chamber, decline feed pipe, next part case, evaporation convection bank, evaporation convection bank intermediate supports, evaporation convection bank end portion supports, collection case; Described decline feed pipe one end links to each other with the drum lower end, and an end links to each other with the next part case, and carbonated drink fairlead one end links to each other with drum, and an end links to each other with upper collecting chamber; The described next part case of going up is by collection case support fixation; Described evaporation convection bank unit forms a whole by convection bank intermediate supports and convection bank end portion supports and is fixing; It is characterized in that: described evaporation convection bank is made up of several evaporation convection bank unit, each evaporation convection bank unit constitutes by forming the identical inverted U-shaped spiral fin coil of being in inclination angle with level, and every spiral fin coil two ends are connected between the next part case.
2. a kind of gas fired-boiler tube bank evaporation convection current heating device according to claim 1 is characterized in that: described each evaporation convection bank unit is vertically rearranging by forming identical inverted U-shaped four spiral fin coils of being in inclination angle with level.
3. a kind of gas fired-boiler tube bank evaporation convection current heating device according to claim 1, it is characterized in that: it is 5 °～9 ° that described every spiral fin coil has identical angle with level.
4. according to claim 1 or 2 or 3 described a kind of gas fired-boiler tube bank evaporation convection current heating devices, it is characterized in that: described gas fired-boiler tube bank evaporation convection current heating device adopts identical carbonated drink fairlead of specification and decline feed pipe respectively, the section ratio of fairlead and tedge, down-comer and tedge is 0.2～0.4, and evaporation convection bank unit circulating ratio is 10～15.
5. according to claim 1 or 2 or 3 described a kind of gas fired-boiler tube bank evaporation convection current heating devices, it is characterized in that: the pitch of fin of described spiral fin coil is the high 15mm of being of 12mm, wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200347288U CN201964388U (en) | 2011-01-27 | 2011-01-27 | Gas fired boiler tube bank evaporation convection heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200347288U CN201964388U (en) | 2011-01-27 | 2011-01-27 | Gas fired boiler tube bank evaporation convection heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201964388U true CN201964388U (en) | 2011-09-07 |
Family
ID=44526929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200347288U Expired - Lifetime CN201964388U (en) | 2011-01-27 | 2011-01-27 | Gas fired boiler tube bank evaporation convection heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201964388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759244A (en) * | 2013-12-31 | 2014-04-30 | 上海四方锅炉集团工程成套股份有限公司 | Tail portion heating surface sealing supporting structure and industrial exhaust gas boiler |
-
2011
- 2011-01-27 CN CN2011200347288U patent/CN201964388U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759244A (en) * | 2013-12-31 | 2014-04-30 | 上海四方锅炉集团工程成套股份有限公司 | Tail portion heating surface sealing supporting structure and industrial exhaust gas boiler |
| CN103759244B (en) * | 2013-12-31 | 2016-01-13 | 上海四方锅炉集团工程成套股份有限公司 | Back-end surfaces sealing supporting structure and there is the industrial tail gas boiler of this structure |
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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: 20110907 |