CN201335617Y - Finned pipe fan heater - Google Patents
Finned pipe fan heater Download PDFInfo
- Publication number
- CN201335617Y CN201335617Y CNU2008201002983U CN200820100298U CN201335617Y CN 201335617 Y CN201335617 Y CN 201335617Y CN U2008201002983 U CNU2008201002983 U CN U2008201002983U CN 200820100298 U CN200820100298 U CN 200820100298U CN 201335617 Y CN201335617 Y CN 201335617Y
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- Prior art keywords
- steam
- header
- pipe
- finned
- heat
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- Expired - Fee Related
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Abstract
The utility model relates to a finned pipe fan heater which belongs to the field of thermal energy and power engineering. The finned pipe fan heater is mainly composed of a case body, a heat-exchanging finned pipe bundle, a positioning plate, a header, a steam inlet connecting pipe, a steam trap and a condensed water outlet connecting pipe. The heat-exchanging finned pipe bundle is transversely washed and brushed by air, and the air is heated into hot air after absorbing vaporized latent heat which is released by steam condensing in the pipe. Steam enters the lower header from the inlet connecting pipe, and then is uniformly distributed in each heat-exchanging pipe to be condensed; condensed liquid flows down along the inner wall of the pipe under the action of gravity, enters the steam trap after being converged by the header, and then is led out from the condensed water outlet connecting pipe. Compared with the prior art, the finned pipe fan heater adopts the structure form that condensed water and steam share one header, and has the characteristics of simple structure, high heat-exchanging efficiency, low equipment cost and good running reliability.
Description
Technical field:
Title of the present utility model is a kind of finned tube steam air heater, belongs to the Thermal Energy and Power Engineering field.
Background technology:
Steam air heater is a kind of heat exchanger with the Steam Heating air, is widely used in field of engineering technology such as power, heating, drying.For example, in Thermal Power Station,,, steam air heater need be set usually air is carried out preheating in order to improve boiler air preheater import wind-warm syndrome, to prevent air preheater entrance point generation cold end corrosion when unit during at underload or winter operation; In food processing factory, in order to guarantee food quality, steam air heater commonly used obtains clean hot-air as heat medium.Because steam air heater is widely used, therefore, optimizes structure, reduce cost, improve heat transfer efficiency and just seem very necessary.
From domestic and foreign literature and license situation, steam air heater on the engineering adopts steam distribution header and condensate water to compile the mode of header separate configurations more at present, on the one hand because the thermal expansion of the heating surface bank of connection steam header and condensate water header is inhomogeneous, the weak easy drawing crack in commissure, thereby leak, block up problems such as ash, cause the operational reliability of steam air heater often not reach the expection requirement; On the other hand, the employing of independent header strengthens the increase of steam air heater volume, complex structure, investment.The utility model proposes the version that steam header and condensate water header unite two into one, can effectively avoid leaking, block up problems such as ash, can reduce the investment of steam air heater unit's heat exchange area simultaneously.
The utility model content:
The technical problems to be solved in the utility model provides a kind of novel finned tube steam air heater.By steam distribution header and condensate water are compiled the version that header unites two into one, can make not only that steam air heater is simple in structure, cost reduces, and can effectively avoid leaking, problems such as stifled ash.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:
Mainly by casing 1, heat exchange fin tube bank 2, location-plate 3, steam distribution/condensate water are compiled a kind of novel finned tube steam air heater of header 4, steam inlet adapter 5, steam trap 6, condensate water discharge connection 7 compositions, be primarily characterized in that: the distribution of steam and condensate water compile a shared header 4, steam inlet is taken over 5 and is connected with an end of header 4, condensate water discharge connection 7 is connected with the other end of header 4, and steam trap 6 links to each other with condensate water discharge connection 7; The heat exchange fins of two row's cross arrangements are restrained 2 lower ends, and to be fixed in header 4, upper end fixing by location-plate 3.
Casing 1 of the present utility model is made of left and right sides tapered end and rectangular box; Heat exchange fin tube bank 2 and whole steam air heater are vertical layout.
The utility model compared with prior art has following characteristics: (1) is simple in structure, cost is low: it is shared that steam distribution header and condensate water are compiled header, not only simplified the steam air heater structure, reduced volume, reduced weight, and reduced investment outlay; (2) the steam air heater operational reliability is good: unite two into one because steam distribution header and condensate water are compiled header, the heat exchange fin tube bank can axially freely be extended along pipe, therefore, can effectively avoid traditional steam air heater heat exchanger tube that problems such as leakage take place because of the thermal expansion drawing crack easily, the steam air heater operational reliability improves.
Description of drawings:
Fig. 1 is the utility model structural representation, Fig. 2 be among the figure A to perspective view.Wherein: the 1-casing; The 2-heat-exchange finned tube; The 3-location-plate; 4-steam distribution/condensate water is compiled header; The 5-steam inlet is taken over; The 6-steam trap; 7-condensate water discharge connection.
The specific embodiment:
Fig. 1 also is provided by the actual structure of drying with the finned tube steam air heater of hot blast that provides.
Pressure from boiler is that the saturated vapor of P=0.5MPa (G) enters steam distribution header 4 through steam inlet adapter 5, be uniformly distributed to then in the heat exchanger tube, the temperature after steam condenses is that t=159 ℃ condensate water is got rid of by steam trap 6 after header compiles.Cold air under normal temperature, the normal pressure enters from casing left side, and the transversal flow finned-tube bundle 2 then, is t=110 ℃ hot-air with being heated to be temperature behind the steam heat-exchanging in the finned tube, flows out from the outlet of casing right-hand member.In order to improve the tube bank heat exchange property, all finned tubes adopt equilateral triangle to arrange; In order to prevent bundle vibration, be provided with location-plate 3 in the tube bank upper end, it mainly acts on is the fixing position of heat exchanger tube, but should guarantee that pipe axially can freely extend.Condensate water is got rid of pipeline and is provided with steam trap, and it mainly acts on is to prevent that steam from getting rid of with condensate water.
Through measuring and calculating, when this condenser heat exchange area is 8m
2When (light pipe external surface area), the hot-blast outlet temperature can surpass 110 ℃, satisfies the process requirements of dry run fully.
Claims (2)
1, a kind of finned tube steam air heater, mainly form by casing (1), heat exchange fin tube bank (2), location-plate (3), steam/condensate water header (4), steam inlet adapter (5), steam trap (6), condensate water discharge connection (7), it is characterized in that: the distribution of steam and condensate water compile a shared header (4), steam inlet is taken over (5) and is connected with an end of header (4), condensate water discharge connection (7) is connected with the other end of header (4), and steam trap (6) links to each other with condensate water discharge connection (7); Header (4) is fixed in heat exchange fin tube bank (2) lower end of two row's cross arrangements, the upper end is fixing by location-plate (3).
2, a kind of finned tube steam air heater according to claim 1, it is characterized in that: casing is made of left and right sides tapered end and rectangular box; Heat exchange fin tube bank (2) and whole steam air heater are vertical layout.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008201002983U CN201335617Y (en) | 2008-10-21 | 2008-10-21 | Finned pipe fan heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008201002983U CN201335617Y (en) | 2008-10-21 | 2008-10-21 | Finned pipe fan heater |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201335617Y true CN201335617Y (en) | 2009-10-28 |
Family
ID=41287271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2008201002983U Expired - Fee Related CN201335617Y (en) | 2008-10-21 | 2008-10-21 | Finned pipe fan heater |
Country Status (1)
Country | Link |
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CN (1) | CN201335617Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107062298A (en) * | 2017-05-26 | 2017-08-18 | 华北电力大学 | The system and heat exchange module of vapor and its heat in a kind of embrane method recovered flue gas |
CN110986626A (en) * | 2019-12-24 | 2020-04-10 | 重庆大学 | Dust-deposition-preventing cross-row three-dimensional rib tube bundle with circumferentially-changing rib structure and shell-and-tube heat exchanger |
CN112628791A (en) * | 2020-12-11 | 2021-04-09 | 新疆天富环保科技有限公司 | System and method for preheating air supply of boiler by using desulfurization slurry |
-
2008
- 2008-10-21 CN CNU2008201002983U patent/CN201335617Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107062298A (en) * | 2017-05-26 | 2017-08-18 | 华北电力大学 | The system and heat exchange module of vapor and its heat in a kind of embrane method recovered flue gas |
CN110986626A (en) * | 2019-12-24 | 2020-04-10 | 重庆大学 | Dust-deposition-preventing cross-row three-dimensional rib tube bundle with circumferentially-changing rib structure and shell-and-tube heat exchanger |
CN112628791A (en) * | 2020-12-11 | 2021-04-09 | 新疆天富环保科技有限公司 | System and method for preheating air supply of boiler by using desulfurization slurry |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Hongmei Refrigeration Equipment Co., Ltd. Assignor: Chongqing University Contract record no.: 2010500000066 Denomination of utility model: Finned pipe fan heater Granted publication date: 20091028 License type: Exclusive License Record date: 20101012 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20101021 |