CN2245163Y - Air preheater - Google Patents
Air preheater Download PDFInfo
- Publication number
- CN2245163Y CN2245163Y CN95234200U CN95234200U CN2245163Y CN 2245163 Y CN2245163 Y CN 2245163Y CN 95234200 U CN95234200 U CN 95234200U CN 95234200 U CN95234200 U CN 95234200U CN 2245163 Y CN2245163 Y CN 2245163Y
- Authority
- CN
- China
- Prior art keywords
- heat
- air preheater
- utility
- model
- pipe
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides an air preheater, which belongs to the technical field of mechanical engineering and relates to an air preheater which heats air used for combustion. The utility model is characterized in that a heat-exchanging pipe thereof is composed of two layers, wherein, an inner layer is a steel pipe, and an outer layer is a layer which keeps out glass; the heat-exchanging pipe is arranged on a pipe plate and is sealed through a sealing structure. The utility model has low temperature corrosion resistance and good heat-transferring effect while no ash is clogged. After part of the heat-exchanging pipe is damaged, the heat-exchanging pipe can be partially replaced. The heat-exchanging pipe does not need to be replaced entirely.
Description
A kind of air preheater belongs to mechanical engineering technical field, relates to a kind of preheated burning preheating of air device.
Existing air preheater is generally vertical preheater, and flue gas is walked in the pipe, and air is walked outside the pipe, behind the heat of absorption of air flue gas, enters the burning of combustion chamber and fuel mix; The preheater that also has is horizontal, and promptly air is walked in the pipe, and flue gas is walked outside the pipe, thereby absorbs heat better.No matter be vertical or horizontal, its economizer bank all is a steel pipe, and steel pipe is welded between the tube sheet, and the air preheater of these two kinds of structures all causes cold end corrosion and clogging phenomenon easily during use.
The purpose of this utility model provides and a kind ofly prevents cold end corrosion and clogging phenomenon and can partly change after the part heat exchanger tube damages and need not put in order the air preheater that group is changed.
The purpose of this utility model is finished like this: it is made up of tube sheet and heat exchanger tube, and heat exchanger tube is installed on the tube sheet by hermetically-sealed construction, and heat exchanger tube has two-layer, and internal layer is a steel pipe, and skin has been warded off one deck glassy layer.
The thickness of the outer field glass-lined coating of the said heat exchanger tube of the utility model is 0.2-0.3mm.
Hermetically-sealed construction of the present utility model can be an asbestos packing.
Fig. 1 is a front view of the present utility model
Fig. 2 is a side view of the present utility model
Describe in detail below in conjunction with accompanying drawing
The utility model is horizontal layout, is made up of tube sheet (1), heat exchanger tube (2), and heat exchanger tube (2) is installed on the tube sheet (4), and by the asbestos packing sealing, heat exchanger tube (2) has two-layer, and internal layer is a steel pipe, and skin is one deck glass-lined coating (3), and thickness is 0.2-0.3mm.
Because the skin of heat exchanger tube of the present utility model is a glass-lined coating, heat-transfer effect is good, the flue gas circulating resistance is little thereby make, and is difficult for stifled ash, and low temperature resistant, acid and alkali corrosion, has increased service life.After the part heat exchanger tube damages, can carry out part and change, do not change and need not put in order group.
Claims (3)
1, a kind of air preheater is made up of tube sheet (1), heat exchanger tube (2), it is characterized in that: heat exchanger tube (2) is installed on the tube sheet (1) by hermetically-sealed construction, and heat exchanger tube (2) is made up of two-layer, and internal layer is a steel pipe.Skin is glass-lined coating (3).
2, a kind of air preheater according to claim 1 is characterized in that: the thickness of glass-lined coating (3) is 0.2-0.3mm.
3, a kind of air preheater according to claim 1 and 2 is characterized in that: hermetically-sealed construction is an asbestos packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95234200U CN2245163Y (en) | 1995-06-29 | 1995-06-29 | Air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95234200U CN2245163Y (en) | 1995-06-29 | 1995-06-29 | Air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2245163Y true CN2245163Y (en) | 1997-01-15 |
Family
ID=33878187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95234200U Expired - Fee Related CN2245163Y (en) | 1995-06-29 | 1995-06-29 | Air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2245163Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788238B (en) * | 2010-01-26 | 2011-10-05 | 枣强县天通电力设备有限公司 | Heat pipe, manufacture method and special equipment |
-
1995
- 1995-06-29 CN CN95234200U patent/CN2245163Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788238B (en) * | 2010-01-26 | 2011-10-05 | 枣强县天通电力设备有限公司 | Heat pipe, manufacture method and special equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |