CN201992678U - Tubular air preheater - Google Patents
Tubular air preheater Download PDFInfo
- Publication number
- CN201992678U CN201992678U CN201020646638XU CN201020646638U CN201992678U CN 201992678 U CN201992678 U CN 201992678U CN 201020646638X U CN201020646638X U CN 201020646638XU CN 201020646638 U CN201020646638 U CN 201020646638U CN 201992678 U CN201992678 U CN 201992678U
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- CN
- China
- Prior art keywords
- air preheater
- tubular air
- utility
- model
- threaded flue
- 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
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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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Abstract
The utility model provides a tubular air preheater, relating to the improvement for the structure of a tubular air preheater. The utility model provides a tubular air preheater, which is characterized in that the structure is simple, the processing is convenient, and the abrasion of a connection point of a spirally corrugated tube can be effectively prevented. The tubular air preheater provided by the utility model comprises a spirally corrugated tube of the tubular air preheater, wherein the upper end of the spirally corrugated tube is connected to an upper tube plate; and the structure of the tubular air preheater is characterized in that the exterior of the upper tube plate is equipped with an anti-abrasion sleeve of which the diameter is the same with that of the spirally corrugated tube by corresponding to the spirally corrugated tube.
Description
Technical field
The utility model relates to the improvement of tubular air preheater structure.
Background technology
Coal-burning boiler is for making fuel smooth combustion, requires combustion air to have to try one's best high temperature; Therefore, heat transmission equipment need be set add hot-air, also can reduce the temperature of smoke evacuation simultaneously, reclaim the waste heat of flue gas, to improve boiler efficiency.When the heat exchange of air preheater by flue gas and air improves air themperature, can also effectively absorb flue gas heat, thereby reduce the exhaust gas temperature of flue gas significantly; Therefore, air preheater is the indispensable important corollary equipment of large-sized boiler, has the function that improves combustion air temperature, smooth combustion, raising boiler thermal output.
Existing tubular air preheater is in long-time running, and the junction of its upper perforated plate and threaded flue is prone to wearing and tearing, often causes the phenomenon of leaking out, and has had a strong impact on the normal operation of boiler.
Summary of the invention
The utility model is exactly at the problems referred to above, the tubular air preheater that provides a kind of junction simple in structure, easy to process, that can effectively prevent threaded flue to wear and tear.
For reaching above-mentioned purpose of the present utility model, the utility model adopts following technical scheme, the utility model comprises the threaded flue of tubular air preheater, the upper end of threaded flue links to each other with upper perforated plate, its structural feature: upper perforated plate is outer to be provided with the diameter Antiwear casing identical with threaded flue corresponding to threaded flue.
The beneficial effects of the utility model: 1, simple in structure, easy to process: Antiwear casing production and processing technology of the present utility model is simple, and cost is low; And, also can install at the scene, improve efficiency of construction, maintenance is also convenient.
2, can effectively prevent the junction wearing and tearing of threaded flue: because the utility model is provided with Antiwear casing outside upper perforated plate, Antiwear casing can effectively reduce the wearing and tearing of threaded flue, and the turbulence intensity of flue gas is constant, when having guaranteed that tubular air preheater normally moves, also reduce the air-introduced machine load, saved the energy.
Description of drawings
Clearer for the beneficial effect that makes technical problem solved by the invention, technical scheme and brought, below in conjunction with accompanying drawing and preferred version, the utility model is further elaborated.Should be appreciated that concrete preferred version described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 is a structural representation of the present utility model.
1 is that threaded flue, 2 is that upper perforated plate, 3 is Antiwear casing in the accompanying drawing.
The specific embodiment
The utility model comprises the threaded flue 1 of tubular air preheater, and the upper end of threaded flue 1 links to each other with upper perforated plate 2, and upper perforated plate 2 is outer to be provided with the identical Antiwear casing 3 of diameter and threaded flue 1 corresponding to threaded flue 1.
As a kind of preferred version: the length of described Antiwear casing 3 is 60mm＜L＜100mm; The abrasionproof effect is best.
Below in conjunction with description of drawings installation process of the present utility model: at first with Antiwear casing 3, be fixed on the smoke inlet place of the upper perforated plate 2 of tubular air preheater, four spot welding are fixed on the outer wall of upper perforated plate 2, this moment, construction the most important thing is to guarantee the concentricity of Antiwear casing 3 and threaded flue 1, otherwise when ash-laden gas enters threaded flue 1, generation is washed away and whirlpool.
Above content is to further describing that the utility model is done in conjunction with concrete preferred implementation; can not assert that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the definite protection domain of claims that the utility model is submitted to.
Claims (2)
1. tubular air preheater, the threaded flue (1) that comprises tubular air preheater, the same upper perforated plate in upper end (2) of threaded flue (1) links to each other, and it is characterized in that being provided with the diameter Antiwear casing (3) identical with threaded flue (1) corresponding to threaded flue (1) outside the upper perforated plate (2).
2. a kind of tubular air preheater according to claim 1, the length that it is characterized in that described Antiwear casing (3) is 60mm＜L＜100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020646638XU CN201992678U (en) | 2010-12-08 | 2010-12-08 | Tubular air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020646638XU CN201992678U (en) | 2010-12-08 | 2010-12-08 | Tubular air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992678U true CN201992678U (en) | 2011-09-28 |
Family
ID=44669167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020646638XU Expired - Fee Related CN201992678U (en) | 2010-12-08 | 2010-12-08 | Tubular air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117267696A (en) * | 2023-09-19 | 2023-12-22 | 中国石油大学(华东) | Abrasion-resistant waste heat boiler for high-dust-content high-temperature gas |
-
2010
- 2010-12-08 CN CN201020646638XU patent/CN201992678U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117267696A (en) * | 2023-09-19 | 2023-12-22 | 中国石油大学(华东) | Abrasion-resistant waste heat boiler for high-dust-content high-temperature gas |
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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: 20110928 Termination date: 20141208 |
|
| EXPY | Termination of patent right or utility model |