CN202284798U - Heater of air pre-heater - Google Patents
Heater of air pre-heater Download PDFInfo
- Publication number
- CN202284798U CN202284798U CN2011203444612U CN201120344461U CN202284798U CN 202284798 U CN202284798 U CN 202284798U CN 2011203444612 U CN2011203444612 U CN 2011203444612U CN 201120344461 U CN201120344461 U CN 201120344461U CN 202284798 U CN202284798 U CN 202284798U
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- CN
- China
- Prior art keywords
- pipeline
- heater
- air
- air inlet
- air preheater
- 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 relates to a heater for preventing low-temperature corrosion of an air pre-heater on an electric power plant boiler. The heater comprises a fan, a pipeline and a transition net, wherein the pipeline is sheathed on the outer side of a circulation water pipeline arranged between a steam turbine and a cold water tower, in addition, a gap is formed between the pipeline and the circulation water pipeline, one end of the pipeline is provided with an air inlet, the fan and a filter net are arranged at the air inlet, the other end of the pipeline is provided with an air outlet, and the air outlet is communicated with the air inlet of the air pre-heater through a pipe. The heater has the characteristics that the structure is simple, the installation is convenient, the cost is low, the heat efficiency of the boiler is not influenced, the low-temperature corrosion of the air pre-heater can be effectively prevented, and the like.
Description
Technical field
The utility model relates to the heater that prevents the air preheater cold end corrosion on a kind of boiler of power plant.
Background technology
On the boiler air preheater is installed all, in order to prevent the air preheater cold end corrosion, in the front portion of air preheater steam air heater being set solves this technical problem usually.Steam air heater is to utilize steam turbine low-pressure to draw gas to heat the heat exchanger of air preheater inlet air; Its complex structure, cost is high, in addition; Steam air heater is to draw gas with steam turbine low-pressure to be the heating thermal source; The increase of low-pressure pumping steam amount increases the steam turbine cycle efficieny, but boiler thermal output is descended.
Summary of the invention
The utility model provides a kind of simple in structure, easy for installation in order to overcome above-mentioned defective, and cost is low, does not influence the heater that boiler thermal output also can effectively prevent the air preheater cold end corrosion.
The technical scheme that the utility model adopts is: a kind of heater of air preheater; Comprise blower fan, pipeline and transition net, described pipeline is set in the circulating water pipeline outside between steam turbine and the cooling column, and and circulating water pipeline between form the gap; One end of pipeline is provided with air inlet; Blower fan and screen pack are installed by the air inlet place, and the other end of pipeline sets out gas port, and the gas outlet is communicated with the air inlet of air preheater through pipe.
Described pipeline is that two semicircular pipes that removably connect are formed.
The long circulating water pipeline of hundreds of rice is arranged between steam turbine and the cooling column usually; The utility model is sheathed pipeline in the circulating water pipeline outside, has utilized the heat of this section circulating water pipeline that the air in the pipeline is heated, and the air after will heating through blower fan then is delivered to the air preheater porch; The utility model has replaced original steam air heater; Need not bleeder steam does not influence the thermal efficiency of boiler, but utilizes the heat of circulating water pipeline air preheater to be heated energy savings; Reduce cost, improve boiler thermal output.
Description of drawings
Fig. 1 is the sketch map of the utility model.
The specific embodiment
Combine accompanying drawing that the utility model is further described at present; Fig. 1 is a kind of embodiment of the utility model; Comprise blower fan 3, pipeline 1 and transition net; Described pipeline 1 is set in circulating water pipeline 2 outsides between steam turbine and the cooling column, and and circulating water pipeline 2 between form the gap, usually the gap is between 5 centimetres to 10 centimetres.One end of pipeline 1 is provided with air inlet, and air inlet is arranged near that side of cooling column usually, and blower fan 3 and screen pack are installed by the air inlet place, and the transition net is arranged on the top position of blower fan 3 in the present embodiment, also can be with both location swaps.The other end of pipeline 1 sets out gas port, and the gas outlet is communicated with the air inlet of air preheater through pipe.Pipeline 1 in the present embodiment is that two semicircular pipes that removably connect are formed, and is convenient to field-strip and maintenance like this.
After the steam turbine operation, the water temperature of the circulating water pipeline 2 between steam turbine and the cooling column can reach 50 degree, and the air between pipeline 1 and the circulating water pipeline 2 can be heated to a little less than 50 degree; Open the blower fan 3 of the utility model, the air after the heating is delivered to the air preheater porch, the utility model has replaced original steam air heater; Need not bleeder steam; Do not influence the thermal efficiency of boiler, but utilize the heat of circulating water pipeline 2 air preheater to be heated energy savings; Reduce cost, improve boiler thermal output.
The utlity model has simple in structurely, easy for installation, cost is low, does not influence boiler thermal output and can effectively prevent characteristics such as air preheater cold end corrosion.
Claims (2)
1. the heater of an air preheater; It is characterized in that: comprise blower fan, pipeline and transition net, described pipeline is set in the circulating water pipeline outside between steam turbine and the cooling column, and and circulating water pipeline between form the gap; One end of pipeline is provided with air inlet; Blower fan and screen pack are installed by the air inlet place, and the other end of pipeline sets out gas port, and the gas outlet is communicated with the air inlet of air preheater through pipe.
2. the heater of air preheater according to claim 1 is characterized in that: described pipeline is that two semicircular pipes that removably connect are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203444612U CN202284798U (en) | 2011-09-15 | 2011-09-15 | Heater of air pre-heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203444612U CN202284798U (en) | 2011-09-15 | 2011-09-15 | Heater of air pre-heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284798U true CN202284798U (en) | 2012-06-27 |
Family
ID=46296319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203444612U Expired - Fee Related CN202284798U (en) | 2011-09-15 | 2011-09-15 | Heater of air pre-heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350942A (en) * | 2018-12-24 | 2020-06-30 | 中国科学院微生物研究所 | Aseptic pipeline conveying device of saturated fatty acid |
-
2011
- 2011-09-15 CN CN2011203444612U patent/CN202284798U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350942A (en) * | 2018-12-24 | 2020-06-30 | 中国科学院微生物研究所 | Aseptic pipeline conveying device of saturated fatty acid |
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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: 20120627 Termination date: 20140915 |
|
| EXPY | Termination of patent right or utility model |