CN110296389A - A kind of economizer arragement construction - Google Patents
A kind of economizer arragement construction Download PDFInfo
- Publication number
- CN110296389A CN110296389A CN201910581588.7A CN201910581588A CN110296389A CN 110296389 A CN110296389 A CN 110296389A CN 201910581588 A CN201910581588 A CN 201910581588A CN 110296389 A CN110296389 A CN 110296389A
- Authority
- CN
- China
- Prior art keywords
- economizer
- tube
- arragement construction
- light pipe
- layers
- 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- Withdrawn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
- 238000010276 construction Methods 0.000 title claims abstract description 9
- 239000003245 coal Substances 0.000 claims description 7
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- 239000007789 gas Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
- F22D1/04—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways the tubes having plain outer surfaces, e.g. in vertical arrangement
- F22D1/06—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways the tubes having plain outer surfaces, e.g. in vertical arrangement in horizontal arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to gas fired-boiler technical fields, specially a kind of economizer arragement construction, it can reduce back-end ductwork occupied space, reduce cost, it includes three-stage economizer, and upper end economizer is made of light pipe, it is characterised in that, intermediate economizer is made of with lower end economizer finned light pipe, and there are denitration spaces between the intermediate economizer and lower end economizer.
Description
Technical field
The present invention relates to gas fired-boiler technical field, specially a kind of economizer arragement construction.
Background technique
Needs (such as blast furnace coal with the adjustment of national energy policy, while based on environmental protection pressure and waste gas heat utilization
Gas, coke-stove gas etc.), gas fired-boiler is good developing direction.Due to various needs, for example exhaust gas temperature is reduced, or
Person reserves tail portion denitration space, and heated surface at the end of boiler need to be arranged more, but the space that can accommodate heating surface is limited,
Existing economizer arrangement is as shown in Figure 1, all using the economizer tube of light pipe type, in order to guarantee to reduce boiler exhaust gas simultaneously
Temperature and reserved denitration space, current common practice is that increase back-end ductwork length, need to expend a large amount of steel, no
Only increased costs, and more space can be occupied, it is brought to actual installation and production more constant.
Summary of the invention
More space is occupied for existing back-end ductwork, problem at high cost, the present invention provides a kind of economizer arrangements
Structure can reduce back-end ductwork occupied space, reduce cost.
Its technical solution is such that a kind of economizer arragement construction comprising three-stage economizer, upper end economizer by
Light pipe constitute, which is characterized in that intermediate economizer is made of with lower end economizer finned light pipe, the intermediate economizer with
There are denitration spaces between the economizer of lower end.
It is further characterized by the fin is spiral fin；
The upper end economizer is three layers of economizer tube, and the intermediate economizer is two layers of economizer tube, the lower end economizer
For four layers of economizer tube.
After adopting the structure of the invention, the economizer tube that script is entirely light pipe type is adjusted to extended surface
Finned economizer tube and Bare Tube Economizer pipe are used in combination, can be used less economizer tube can be obtained it is more by
Hot face can reserve enough denitration spaces between intermediate economizer and lower end economizer, effectively reduce back-end ductwork
Length reduces costs to reduce occupied space.
Detailed description of the invention
Fig. 1 is existing coal economizer structure schematic diagram；
Fig. 2 is coal economizer structure schematic diagram of the present invention；
Fig. 3 is finned light-pipe structure schematic diagram；
Fig. 4 is sectional view along A-A in Fig. 3.
Specific embodiment
See Fig. 2, Fig. 3, shown in Fig. 4, a kind of economizer arragement construction comprising three-stage economizer, upper end economizer 1 by
Light pipe 5 is constituted, and intermediate economizer 2 is made of with lower end economizer 3 light pipe 5 with fin 4, intermediate economizer 2 and lower end province coal
There are denitration space 6 between device 3, fin 4 is spiral fin, can preferably obtain more heating surface area.
In the present embodiment, upper end economizer 1 is three layers of economizer tube, and intermediate economizer 2 is two layers of economizer tube, lower end province
Coal device 3 is four layers of economizer tube.
Conventional Bare Tube Economizer pipe is adjusted to the helical finned tube type economizer tube with extended surface.It is such
For form economizer in same space, the heating surface area conservative estimation that can be accommodated is as many as 1 times of Bare Tube Economizer, can
Greatly save space.But since economizer inlet flue gas temperature is higher, and extended surface fin is relatively thin, and managed interior medium is cooling
Effect is undesirable, if directly just arranging spiral finned tube economizer in entrance area, extended surface is easy to damage, is saving coal thus
Device entrance area arranges one section of Bare Tube Economizer, i.e. upper end economizer, enters back into spiral shell after allowing smoke temperature to be reduced to suitable region
Revolve finned tube economizer region.Such arrangement, which can achieve the purpose that increase, heating surface and saves trailing space, and
And it can guarantee the longtime running of spiral finned tube economizer.
Claims (3)
1. a kind of economizer arragement construction comprising three-stage economizer, upper end economizer are made of light pipe, which is characterized in that
Intermediate economizer is made of with lower end economizer finned light pipe, and there are de- between the intermediate economizer and lower end economizer
Nitre space.
2. a kind of economizer arragement construction according to claim 1, which is characterized in that the fin is spiral fin.
3. a kind of economizer arragement construction according to claim 1, which is characterized in that the upper end economizer is three layers of province
Coal device pipe, the intermediate economizer are two layers of economizer tube, and the lower end economizer is four layers of economizer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581588.7A CN110296389A (en) | 2019-06-30 | 2019-06-30 | A kind of economizer arragement construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581588.7A CN110296389A (en) | 2019-06-30 | 2019-06-30 | A kind of economizer arragement construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110296389A true CN110296389A (en) | 2019-10-01 |
Family
ID=68029652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910581588.7A Withdrawn CN110296389A (en) | 2019-06-30 | 2019-06-30 | A kind of economizer arragement construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110296389A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201593782U (en) * | 2009-12-28 | 2010-09-29 | 抚顺石油机械有限责任公司 | Coal saver of residual heat boiler |
| CN202109462U (en) * | 2011-05-30 | 2012-01-11 | 东方日立锅炉有限公司 | Fuel economizer |
| CN203464242U (en) * | 2013-08-29 | 2014-03-05 | 山东华鲁恒升化工股份有限公司 | High-medium-low temperature overall economizer for coal-fired boiler |
| CN204345682U (en) * | 2014-12-22 | 2015-05-20 | 山东恒涛节能环保有限公司 | A kind of boiler flue gas treatment system with SCR denitration function |
| CN105222114A (en) * | 2015-10-27 | 2016-01-06 | 哈尔滨电站设备成套设计研究所有限公司 | The low NO of economizer sectional boiler full load xdevice and remodeling method |
| CN210398882U (en) * | 2019-06-30 | 2020-04-24 | 无锡华光锅炉股份有限公司 | Coal economizer arrangement structure |
-
2019
- 2019-06-30 CN CN201910581588.7A patent/CN110296389A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201593782U (en) * | 2009-12-28 | 2010-09-29 | 抚顺石油机械有限责任公司 | Coal saver of residual heat boiler |
| CN202109462U (en) * | 2011-05-30 | 2012-01-11 | 东方日立锅炉有限公司 | Fuel economizer |
| CN203464242U (en) * | 2013-08-29 | 2014-03-05 | 山东华鲁恒升化工股份有限公司 | High-medium-low temperature overall economizer for coal-fired boiler |
| CN204345682U (en) * | 2014-12-22 | 2015-05-20 | 山东恒涛节能环保有限公司 | A kind of boiler flue gas treatment system with SCR denitration function |
| CN105222114A (en) * | 2015-10-27 | 2016-01-06 | 哈尔滨电站设备成套设计研究所有限公司 | The low NO of economizer sectional boiler full load xdevice and remodeling method |
| CN210398882U (en) * | 2019-06-30 | 2020-04-24 | 无锡华光锅炉股份有限公司 | Coal economizer arrangement structure |
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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: 20191001 |