CN206496367U - Helical finned tube type steam air heater - Google Patents
Helical finned tube type steam air heater Download PDFInfo
- Publication number
- CN206496367U CN206496367U CN201621179698.9U CN201621179698U CN206496367U CN 206496367 U CN206496367 U CN 206496367U CN 201621179698 U CN201621179698 U CN 201621179698U CN 206496367 U CN206496367 U CN 206496367U
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- plate
- finned tube
- floating
- spiral
- tube bundle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model belongs to technical field of heat exchange, specifically related to a kind of helical finned tube type steam air heater, including framework, lower portion is provided with heat-exchanger rig, one end of lower portion is provided with sliding way and glide path, heat-exchanger rig includes spiral-finned tube bundle, one end of spiral-finned tube bundle is provided with fixed charge method end plate, the other end of spiral-finned tube bundle is provided with floating end plate, fixed header is provided with fixed charge method end plate, steam inlet tube is provided with fixed header, floating header is provided with floating end plate, condensate pipe is provided with floating header, connecting plate and floating end side plate are provided with the middle part of condensate pipe, sealing plate is provided with floating end side plate, screwed hole is provided with sealing plate, connecting plate links together with sealing plate, the top of connecting plate is provided with deep bead, floating end plate can be upper, slided in glide path, this moveable structure of floating end plate absorbs the thermal expansion imagination of tube bank, the problem of so as to solve tube bank leakage.
Description
Technical field
The utility model belongs to technical field of heat exchange, and in particular to a kind of helical finned tube type steam air heater.
Background technology
Fan for Boiler in Power Plant outlet temperature is low, and absorption flue gas heat is contacted with final stage preheater, causes exhaust gas temperature to be less than
Flue gas acid dew point and condense, the sulfuric acid corrosion of the oxygen corrosion of preheater metal surface and sulfur trioxide makes the adhesion of air preheater pipe a large amount of
Flying dust and block, increase flue gas resistance, be forced when serious blowing out carry out pass blocking, influence the boiler operatiopn cycle.And outside air preheater pipe
Vapor dew corrosion air preheater pipe in air, shortens air preheater service life, has influence on unit safety operation.Solution party
Method is to install steam air heater additional in fans entrance, and using steam heating blower intake air, air is preheated, and reduces air and cigarette
The temperature difference of gas, makes exhaust gas temperature be higher than the acid dew-point temperature of flue gas, reduces and blocks up grey probability, the growth boiler operatiopn cycle, current
There is leakage problem in steam air heater, steam air heater leakage is generally heat-transfer pipe because the reason expanded with heat and contract with cold makes heat-transfer pipe bond open, steamed
Vapour is from pipe internal leakage to pipe outer air duct.
The content of the invention
A kind of construction that the purpose of this utility model is to overcome the deficiencies in the prior art and provided rationally, prevent heat exchanger tube
The helical finned tube type steam air heater that beam ftractures by rising-heat contracting-cold.
What the utility model was realized in：A kind of helical finned tube type steam air heater, including framework, it is characterised in that：Institute
The lower portion stated is provided with heat-exchanger rig, and one end of lower portion is provided with sliding way and glide path, and heat-exchanger rig includes spiral shell
Finned-tube bundle is revolved, one end of spiral-finned tube bundle is provided with fixed charge method end plate, and the other end of spiral-finned tube bundle is provided with floating end
It is provided with to be provided with steam inlet tube, floating end plate on fixed header, fixed header on plate, fixed charge method end plate and is provided with floating connection
It is provided with case, floating header in the middle part of condensate pipe, condensate pipe and is provided with connecting plate and floating end side plate, floating end side plate
On be provided with sealing plate, sealing plate and be provided with screwed hole, connecting plate links together with sealing plate, the top of floating end side plate
Be provided with deep bead, the lower plane of deep bead is contacted with sliding way, the connection of one end of fixed charge method end plate and framework, floating end side plate with
The other end connection of framework, fixed charge method end plate is provided with sealing gasket with framework junction, and floating end side plate is set with framework junction
There is sealing gasket.
The arrangement mode of described spiral-finned tube bundle is fork row's method.
The steam inlet end of described spiral-finned tube bundle is higher than condensate pipe end, and the angle of inclination of spiral-finned tube bundle is
15°-20°。
Described floating end plate is between sliding way and glide path.
Compared with prior art, the beneficial effects of the utility model are：This helical finned tube type steam air heater has structure tight
Gather, resistance is small, heat exchange area is big, be difficult dust stratification, the features such as energy-saving effect is notable, after installation is complete, open connecting plate with it is close
Connection between shrouding, is passed through after steam in spiral-finned tube bundle, restrains expanded by heating, and the tube bank after expansion is axial to tube bank
Direction extends, and now, due to not connected between connecting plate and sealing plate, floating end plate can be moved between upper and lower slideway,
Tube bank is set to be expanded to condensate pipe side, this moveable structure of floating end plate absorbs the thermal expansion imagination of tube bank, so that
The problem of solving tube bank leakage.
Brief description of the drawings
Fig. 1 is helical finned tube type steam air heater structural representation
Fig. 2 is the top view of helical finned tube type steam air heater
Fig. 3 is the arrangement mode of spiral-finned tube bundle
In figure：1- steam inlet tubes, 2- fixation headers, 3- fixed charge method end plates, 4- discaling rolls A, 5- spiral-finned tube bundle, 6- frameworks,
7- floating end plates, 8- sliding ways, 9- deep beads, 10- floating headers, 11- glide paths, 12- floating end side plates, 13- sealing plates,
14- connecting plates, 15- stiffener plates, 16- condensate pipes, 17- slings plate.
Embodiment
Embodiment 1, as shown in Figure 1, Figure 2, shown in Fig. 3 structures, a kind of helical finned tube type steam air heater, including framework 6, its feature
It is：One end that described framework 6 is internally provided with inside heat-exchanger rig, framework 6 is provided with sliding way 8 and glide path 11, changes
Thermal includes spiral-finned tube bundle 5, and the arrangement mode of spiral-finned tube bundle 5 is fork row's method, and one end of spiral-finned tube bundle 5 is set
Fixed charge method end plate 3 is equipped with, the other end of spiral-finned tube bundle 5 is provided with floating end plate 7, and floating end plate 7 is in sliding way 8 and glide path
Between 11, it is provided with fixed charge method end plate 3 on fixed header 2, fixed header 2 and is provided with setting on steam inlet tube 1, floating end plate 7
Have and condensate pipe 16 is provided with floating header 10, floating header 10, the middle part of condensate pipe 16 is provided with connecting plate 14 and floating
It is provided with moved end side plate 12, floating end side plate 12 on sealing plate 13, sealing plate 13 and is provided with screwed hole, connecting plate 14 and sealing
Plate 13 links together, and the steam inlet end of spiral-finned tube bundle 5 is higher than condensate pipe end, the inclination angle of spiral-finned tube bundle 5
Spend for 15 ° -20 °, the top of floating end side plate 14 is provided with deep bead 9, and the lower plane of deep bead 9 is contacted with sliding way 8, it is fixed
End plate 3 is connected with one end of framework 6, and floating end side plate 12 is connected with the other end of framework 6, fixed charge method end plate 3 and the junction of framework 6
Be provided with sealing gasket 4, floating end side plate 12 is provided with sealing gasket 4 with the junction of framework 6, between connecting plate 14 and sealing plate 13 by
Screw 15 is connected, and fixed charge method end plate 3 is installed with being provided with hoisting board 17 on floating end side plate 12 in helical finned tube type steam air heater
Cheng Houke releases screw 15 to the connection between connecting plate 14 and sealing plate 13.
The utility model when in use, is passed through steam at steam inlet tube, steam is flowed in spiral-finned tube bundle, by
It is higher than condensate pipe end in the steam inlet end of spiral-finned tube bundle, the tube bank angle of inclination of helical fin is 15 ° -20 °, favorably
In the discharge of steam condensate (SC), it is passed through in spiral-finned tube bundle after steam, restrains expanded by heating, tube bank after expansion is to tube bank
Axial direction extends, now, due to not connected between connecting plate and sealing plate, and floating end plate can be between upper and lower slideway
It is mobile, tube bank is expanded to condensate pipe side, this moveable structure of floating end plate absorbs the thermal expansion imagination of tube bank,
Flowed after being exchanged heat through spiral-finned tube bundle the problem of so as to solve tube bank leakage, the lower section of air from helical finned tube type steam air heater
Go out, every trade preheating is entered to fans entrance air, reduces the temperature difference of air and flue gas, exhaust gas temperature is higher than the acid dew point temperature of flue gas
Degree, reduces stifled grey probability, increases the boiler operatiopn cycle.
Preferred embodiment of the present utility model is the foregoing is only, not to limit the utility model, for this area
Technical staff for, the utility model can have a various modifications and variations, all within spirit of the present utility model and principle,
Any modification, equivalent substitution and improvements made etc., should be included within protection domain of the present utility model.
Claims (4)
1. a kind of helical finned tube type steam air heater, including framework, it is characterised in that：Described lower portion is provided with heat exchange dress
Put, one end of lower portion is provided with sliding way and glide path, and heat-exchanger rig includes spiral-finned tube bundle, spiral-finned tube bundle
One end is provided with fixed charge method end plate, the other end of spiral-finned tube bundle be provided with floating end plate, fixed charge method end plate be provided with it is fixed
It is provided with case, fixed header on steam inlet tube, floating end plate and is provided with floating header, condensate is provided with floating header
It is provided with to be provided with sealing plate, sealing plate on connecting plate and floating end side plate, floating end side plate in the middle part of pipe, condensate pipe and sets
Screwed hole is equipped with, connecting plate links together with sealing plate, the top of floating end side plate is provided with deep bead, and the lower of deep bead is put down
Face is contacted with sliding way, one end connection of fixed charge method end plate and framework, and the other end of floating end side plate and framework is connected, fixed charge method end plate
Framework junction is provided with sealing gasket, floating end side plate is provided with sealing gasket with framework junction.
2. a kind of helical finned tube type steam air heater according to claim 1, it is characterised in that：Described spiral-finned tube bundle
Arrangement mode for fork row's method.
3. a kind of helical finned tube type steam air heater according to claim 1, it is characterised in that：Described spiral-finned tube bundle
Steam inlet end be higher than condensate pipe end, the angle of inclination of spiral-finned tube bundle is 15 ° -20 °.
4. a kind of helical finned tube type steam air heater according to claim 1, it is characterised in that：Described floating end plate is upper
Between slideway and glide path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179698.9U CN206496367U (en) | 2016-11-03 | 2016-11-03 | Helical finned tube type steam air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179698.9U CN206496367U (en) | 2016-11-03 | 2016-11-03 | Helical finned tube type steam air heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206496367U true CN206496367U (en) | 2017-09-15 |
Family
ID=59799890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621179698.9U Active CN206496367U (en) | 2016-11-03 | 2016-11-03 | Helical finned tube type steam air heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206496367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871147A (en) * | 2021-08-06 | 2021-12-31 | 浙江尔格科技股份有限公司 | Temperature compensation type oil air cooler |
| CN114688604A (en) * | 2022-04-28 | 2022-07-01 | 西安热工研究院有限公司 | Movable air heater system |
-
2016
- 2016-11-03 CN CN201621179698.9U patent/CN206496367U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871147A (en) * | 2021-08-06 | 2021-12-31 | 浙江尔格科技股份有限公司 | Temperature compensation type oil air cooler |
| CN114688604A (en) * | 2022-04-28 | 2022-07-01 | 西安热工研究院有限公司 | Movable air heater system |
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| GR01 | Patent grant |