CN204114909U - Bellows economizer - Google Patents
Bellows economizer Download PDFInfo
- Publication number
- CN204114909U CN204114909U CN201420546436.6U CN201420546436U CN204114909U CN 204114909 U CN204114909 U CN 204114909U CN 201420546436 U CN201420546436 U CN 201420546436U CN 204114909 U CN204114909 U CN 204114909U
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- main pipe
- bellows
- main
- pipe
- economizer
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- Expired - Fee Related
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Abstract
Bellows economizer, some main pipes be arranged in parallel, adjacent main pipe is communicated with by arranging swan neck at main pipe two ends, the tube wall of main pipe bends the bellows-shaped being arranged to uniform pitch, the tube wall surrounding of main pipe forms crest and the trough of uniformity, two main pipes of the first and end of main pipe are respectively arranged with influent stream body header and go out fluid header, and all main pipes all locate fixing with pipe row folding horse.The utility model, effectively can improve the heat exchange efficiency of economizer and extend service life of economizer, and the main pipe of bellows-shaped allows the fluid media (medium) in main pipe produce and stirs, and fluid media (medium) contacts with main pipe's inner tubal wall equably, and heat exchange is even; The main pipe of bellows-shaped is in the flue gas of heat simultaneously, and self expanded by heating, the knot grieshoch of main pipe's inner surface can be inflated power drawing crack, and comes off, and main pipe's outer surface can not tie ash.
Description
Technical field
The utility model relates to bellows economizer, and it is a kind of economizer effectively avoiding tying ash, belongs to boiler technology field.
Background technology
Economizer is arranged in heating in boiler back end ductwork to fluidic component, and its effect is the partial heat in absorption boiler tail flue gas, reduces exhaust gas temperature, with fuel saving.Modern boiler generally has economizer.Before entering boiler, first pass through it to fluid, in order to absorb flue gas heat, reduce the exhaust gas temperature of flue gas, economize energy, improve the efficiency of utilization of boiler.But usually containing a large amount of harmful substances in boiler exhaust gas, there is viscosity and corrosivity.In existing economizer, major part uses light pipe as fluid hose, because its heat transfer area is little, develops into spiral fin coil and H type finned tube afterwards, increases heat transfer area, improve heat transfer efficiency.
But traditional economizer is difficult to overcome the grey problem of knot, after knot ash, the heat transfer efficiency of economizer reduces, function reduction, due to the specific close-packed arrays structure of economizer, is difficult to cleaning, directly determines the life-span of economizer after knot ash.
Summary of the invention
In order to solve above-mentioned Problems existing, the utility model discloses a kind of bellows economizer, this economizer effectively can avoid fluid duct ligation ash, substantially increases the service life of economizer, brings huge economic benefit.
Bellows economizer, comprise some main pipes and swan neck, all main pipes be arranged in parallel, adjacent main pipe is communicated with by arranging swan neck at main pipe two ends, the tube wall of described main pipe bends the bellows-shaped being arranged to uniform pitch, all main pipes are communicated with mutually, and two main pipes of the first, last of all main pipes are respectively arranged with influent stream body header and go out fluid header.
Described main pipe and swan neck are all the main pipe and swan neck that adopt anticorrosive anti-wear ND steel tubing to make.
The tube wall surrounding of described main pipe forms crest and the trough of uniformity, and crest and trough alternately form the main pipe of wave-like.
This economizer also comprises pipe row folding horse, described pipe row folding horse and main pipe arranged vertically, all main pipes all locate fixing with pipe row folding horse.
Described all pipe row folding horses be arranged in parallel, and are evenly distributed on the axial direction of main pipe.
The utility model, main pipe is arranged in parallel is fixed on pipe row folding at once, all main pipes are communicated with by swan neck, fluid enters main pipe from influent stream body header, flue gas flows through from main pipe, flue gas and main pipe's heat exchange, after the fluid absorbent thermal quantitative change heat in main pipe, finally discharge from going out fluid header.
Fluid media (medium) is when the main pipe of bellows-shaped is flowed, fluid media (medium) and main pipe's collision rift, form strong agitation, even if when flow velocity is very low, also the flow regime of fluid media (medium) can be made to reach sufficient turbulent flow, thoroughly broken the boundary layer of fluid media (medium), allow fluid media (medium) evenly contact with the tube wall of main pipe fully, the heat exchange of fluid media (medium) is even; Simultaneously the crest of the wave-like of main pipe and trough increase the contact area of main pipe and flue gas, i.e. heat exchange area, raising heat exchanger effectiveness.
The utility model, the main pipe of bellows-shaped in use, with the smoke contacts of heat, main pipe understands expanded by heating, and the ash knot in flue gas is behind main pipe surface, due to the expansion of main pipe, have certain pulling force towards surrounding to the knot grieshoch on main pipe surface, knot grieshoch can rupture, and splits away off from main pipe surface, effectively prevent knot ash, improve service life of the present utility model.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the partial enlarged drawing of the A place main pipe of Fig. 1,
Reference numerals list: 1-main pipe, 2-swan neck, 3-influent stream body header, 4-go out fluid header, 5-pipe row folding horse.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further.Following detailed description of the invention should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model.
Accompanying drawing is only an embodiment of the present utility model, Fig. 1 is structural representation of the present utility model, as seen from the figure, the utility model, two pipe row folding horses 5 are arranged side by side, all main pipes 1 fix with pipe row folding horse 5 mutually abreast, the two ends of adjacent main pipe 1 arrange swan neck 2, and swan neck 2 and main pipe 1 inside are interconnected, and fluid media (medium) enters main pipe 1 from influent stream body header 3, the main pipe 1 that fluid media (medium) trickled all and swan neck 2, finally discharge from going out fluid header 4.
When the utility model uses, be arranged in boiler back end ductwork, boiler emission flue gas out contains a large amount of heat energy, flue gas is through main pipe 1 and swan neck 2, carry out heat exchange with main pipe 1 and swan neck 2, in main pipe 1 and swan neck 2, fluid media (medium) receives heat, make use of the heat energy in flue gas, avoid the heat energy in flue gas to be wasted, the fluid media (medium) absorbed after heat energy can be used for industrial use.
Fig. 2 is the partial enlarged drawing of the A place main pipe of Fig. 1, as seen from the figure, the tube wall of main pipe 1 bends the bellows-shaped being arranged to uniform pitch, and the tube wall surrounding of main pipe 1 forms crest and the trough of uniformity, and crest and trough alternately form the main pipe 1 of wave-like.The main pipe 1 of bellows-shaped has very important significance for the heat exchange efficiency and heat exchange uniformity improving fluid media (medium), fluid media (medium) is through crest and trough, fluid and crest collide, form eddy current at trough place, form strong agitation, even if when flow velocity is very low, also the flow regime of fluid media (medium) can be made to reach sufficient turbulent flow, thoroughly broken the boundary layer of fluid media (medium), allow fluid media (medium) evenly contact with the tube wall of main pipe 1 fully, the heat exchange of fluid media (medium) inside is even; Simultaneously the crest of the wave-like of main pipe 1 and trough increase the contact area of main pipe 1 and flue gas, i.e. heat exchange area, improves heat exchanger effectiveness.
Meanwhile, the main pipe 1 of wave-like effectively can avoid knot ash.Containing a large amount of cigarette ash in flue gas, cigarette ash at the knot ash of traditional economizer, can be formed knot grieshoch, reduces the heat exchanger effectiveness of economizer.Main pipe 1 of the present utility model is in the flue gas of heat, and the surplus of expanded by heating is comparatively large, and in expansion process, knot grieshoch is subject to the expansion pulling force of main pipe 1, ties grey fault rupture, and comes off from main pipe 1.Main pipe 1 does not tie ash in surface, and heat exchange efficiency is high, long service life.
Main pipe 1 of the present utility model and swan neck 2 are all the main pipe 1 and swan neck 2 that adopt anticorrosive anti-wear ND steel tubing to make, and anticorrosive anti-wear ND steel tubing has stronger anticorrosion ability, extends service life of the present utility model.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned technological means, also comprises the technical scheme be made up of above technical characteristic.
Claims (5)
1. bellows economizer, comprise some main pipes (1) and swan neck (2), all main pipes (1) be arranged in parallel, adjacent main pipe (1) is communicated with by arranging swan neck (2) at main pipe (1) two ends, it is characterized in that the tube wall of described main pipe (1) bends the bellows-shaped being arranged to uniform pitch, all main pipes (1) are communicated with mutually, and two main pipes (1) of the first, last of all main pipes (1) are respectively arranged with influent stream body header (3) and go out fluid header (4).
2. bellows economizer according to claim 1, is characterized in that described main pipe (1) and swan neck (2) are all the main pipe (1) and swan neck (2) that adopt anticorrosive anti-wear ND steel tubing to make.
3. bellows economizer according to claim 1, it is characterized in that the tube wall surrounding of described main pipe (1) forms crest and the trough of uniformity, crest and trough alternately form the main pipe (1) of wave-like.
4. bellows economizer according to claim 1, is characterized in that also comprising several pipe row folding horses (5), and described pipe row folding horse (5) is arranged vertically with main pipe (1), and all main pipes (1) all locate fixing with pipe row folding horse (5).
5. bellows economizer according to claim 4, is characterized in that described all pipe row folding horses (5) be arranged in parallel, and is evenly distributed on the axial direction of main pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546436.6U CN204114909U (en) | 2014-09-23 | 2014-09-23 | Bellows economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546436.6U CN204114909U (en) | 2014-09-23 | 2014-09-23 | Bellows economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204114909U true CN204114909U (en) | 2015-01-21 |
Family
ID=52332215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420546436.6U Expired - Fee Related CN204114909U (en) | 2014-09-23 | 2014-09-23 | Bellows economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204114909U (en) |
-
2014
- 2014-09-23 CN CN201420546436.6U patent/CN204114909U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20150923 |
|
| EXPY | Termination of patent right or utility model |