CN203501869U - Air preheater - Google Patents
Air preheater Download PDFInfo
- Publication number
- CN203501869U CN203501869U CN201320634897.4U CN201320634897U CN203501869U CN 203501869 U CN203501869 U CN 203501869U CN 201320634897 U CN201320634897 U CN 201320634897U CN 203501869 U CN203501869 U CN 203501869U
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- heat
- pipe
- air
- air preheater
- radiator
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Abstract
The utility model discloses an air preheater, and belongs to air inlet preheating devices of a boiler. The air preheater is high in heat efficiency, compact in structure and convenient to maintain. The air preheater comprises a heat exchanger formed by connecting a plurality of heat pipe heat radiators (1) in series, each heat pipe heat radiator (1) is mainly composed of a box body (9) with an air inlet and an air outlet, a partition board (10) and a plurality of heat pipes (8), the partition boards (10) are fixed in the box bodies and divide the box bodies into heat absorption cavities (6) and heat dissipation cavities (2), the heat pipes (8) penetrate through the partition boards to be fixed in the box bodies (9), the uppermost heat pipe heat radiator (1) is provided with a smoke exhausting pipe (11) and a heat air pipe (12), the smoke exhausting pipe (11) and the heat air pipe (12) are correspondingly communicated with the heat absorption cavities (6) and the heat dissipation cavities (2), the bottommost heat pipe heat radiator (1) is provided with a smoke pipe (5) and a cold air pipe (4), and the smoke pipe (5) and the cold air pipe (4) are correspondingly communicated with the heat absorption cavities (6) and the heat dissipation cavities (2). The air preheater is small in fan energy consumption, and long in service life, moisture condensation does not easily occur in the pipe wall, and the air preheater is a boiler smoke waste heat utilization device.
Description
Technical field
The utility model relates to a kind of boiler smoke after-heat utilizing device, relates in particular to a kind of boiler smoke that utilizes and air is carried out to the device of preheating.
Background technology
Preheater is a kind of device that utilizes boiler smoke to carry out preheating, reach energy-conservation object entering the air of boiler.At present, most of boilers adopt tubular preheater or rotary preheater conventionally.Tubular preheater is simple in structure, cost is low, but volume is large, gas-flow resistance is large, easy to wear, the easy dewfall of tube wall and cause stifled ash and corrosion, maintenance is frequent and difficulty is large, service life is short; There is the defects such as poor sealing performance, air-introduced machine energy consumption height in rotary preheater.
Summary of the invention
In view of the foregoing defects the prior art has, the utility model aims to provide that a kind of pre-thermal efficiency is high, gas-flow resistance is little, long service life, compact conformation, is convenient to the air preheater of maintenance.
To achieve these goals, the utility model by the following technical solutions: it comprises heat exchanger; Described heat exchanger is erect and is in series by a plurality of heat-pipe radiators, heat-pipe radiator is mainly provided with by bottom the casing that air inlet, top are provided with gas outlet, be fixed on the dividing plate that is divided into heat-absorbing chamber and heat radiation chamber in this casing, the some heat pipes that are fixed in casing through this dividing plate form; The smoke exhaust pipe being communicated with heat-absorbing chamber and the warm-air pipe being communicated with heat radiation chamber are arranged at uppermost heat-pipe radiator top, and the fume pipe being communicated with heat-absorbing chamber and the cold air pipe being communicated with heat radiation chamber are arranged at nethermost heat-pipe radiator bottom.
On each heat pipe, be distributed with some heat transmission fins; Each heat pipe is in tilted layout.
Heat pipe in technique scheme is a kind of high-performance heat transfer components, it be utilize working medium in vacuum tube be heated boiling, undergo phase transition to conduct heat; It has the advantages such as heat transfer is fast, heat exchange efficiency is high, isothermal performance is good, heat flow density is convertible and is used widely gradually.
Compared with the prior art, the utility model being owing to having adopted a plurality of heat-pipe radiators of series connection from top to bottom and being provided with some heat transmission fins in technique scheme, therefore has that the pre-thermal efficiency is high, gas-flow resistance is little, fan energy consumption is low, tube wall is difficult for dewfall, compact conformation, is convenient to the advantages such as maintenance, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: heat-pipe radiator 1, heat radiation chamber 2, heat transmission fin 3, cold air pipe 4, fume pipe 5 heat-absorbing chambers 6, support 7, heat pipe 8, casing 9, dividing plate 10, smoke exhaust pipe 11, warm-air pipe 12.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
As shown in Figure 1: on support 7, be fixed with a plurality of heat-pipe radiators 1 of series connection from bottom to top; Each heat-pipe radiator 1 is provided with by bottom the casing 9 that air inlet, top are provided with gas outlet, is fixed on the dividing plate 10 that is divided into heat-absorbing chamber 6 and heat radiation chamber 2 in this casing, and the some heat pipes 8 that are fixed in casing 9 through this dividing plate form; The heat-absorbing chamber 6 of each adjacent heat tube radiator 1 is interconnected, the heat radiation chamber 2 of each adjacent heat tube radiator 1 is interconnected.The warm-air pipe 12 that there is the smoke exhaust pipe 11 that is communicated with heat-absorbing chamber 6 at the top that is positioned at uppermost that heat-pipe radiator 1 and is communicated with heat radiation chamber 2, the bottom that is positioned at nethermost that heat-pipe radiator 1 has and is fixed on the fume pipe 5 being communicated with heat-absorbing chamber 6 on support 7 and is fixed on the cold air pipe 4 being communicated with the chamber 2 of dispelling the heat on support 7.
In order to improve heat exchange efficiency, on each heat pipe 8, be distributed with some heat transmission fins 3; For the ease of working medium evaporation and the condensing reflux in heat pipe, each heat pipe 8 is by being in tilted layout by low and high mode to heat radiation chamber 2 from heat-absorbing chamber 6.
Claims (3)
1. an air preheater, comprises heat exchanger; It is characterized in that: described heat exchanger is erect and is in series by a plurality of heat-pipe radiators (1), heat-pipe radiator (1) is mainly provided with by bottom the casing (9) that air inlet, top are provided with gas outlet, be fixed on the dividing plate (10) that is divided into heat-absorbing chamber (6) and heat radiation chamber (2) in this casing, the some heat pipes (8) that are fixed in casing (9) through this dividing plate form; The smoke exhaust pipe (11) being communicated with heat-absorbing chamber (6) and the warm-air pipe (12) being communicated with heat radiation chamber (2) are arranged at uppermost heat-pipe radiator (1) top, and the fume pipe (5) being communicated with heat-absorbing chamber (6) and the cold air pipe (4) being communicated with heat radiation chamber (2) are arranged at nethermost heat-pipe radiator (1) bottom.
2. air preheater according to claim 1, is characterized in that: on each heat pipe (8), be distributed with some heat transmission fins (3).
3. heat exchange of heat pipe according to claim 1 and 2, is characterized in that: each heat pipe (8) is in tilted layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634897.4U CN203501869U (en) | 2013-10-15 | 2013-10-15 | Air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634897.4U CN203501869U (en) | 2013-10-15 | 2013-10-15 | Air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203501869U true CN203501869U (en) | 2014-03-26 |
Family
ID=50332843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320634897.4U Expired - Fee Related CN203501869U (en) | 2013-10-15 | 2013-10-15 | Air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203501869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128787A (en) * | 2020-08-24 | 2020-12-25 | 南京林业大学 | Flue pipe for wall-mounted furnace |
-
2013
- 2013-10-15 CN CN201320634897.4U patent/CN203501869U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128787A (en) * | 2020-08-24 | 2020-12-25 | 南京林业大学 | Flue pipe for wall-mounted furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20151015 |
|
| EXPY | Termination of patent right or utility model |