CN201496988U - Heat expansion device of air preheater - Google Patents
Heat expansion device of air preheater Download PDFInfo
- Publication number
- CN201496988U CN201496988U CN2009202311194U CN200920231119U CN201496988U CN 201496988 U CN201496988 U CN 201496988U CN 2009202311194 U CN2009202311194 U CN 2009202311194U CN 200920231119 U CN200920231119 U CN 200920231119U CN 201496988 U CN201496988 U CN 201496988U
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- CN
- China
- Prior art keywords
- preheater
- expansion device
- heat expansion
- utility
- model
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- 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.)
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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 heat expansion device, in particular to a heat expansion device which is applied in an air preheater which preheats air entering a garbage furnace. The heat expansion device is arranged outside a wall of a box body of the preheater, and is provided with an upper and a lower elastic U-shaped boards, wherein the two sides of the U-shaped boards are respectively connected with a sealing plates, a heat exchange tube arranged in the preheater can extend out of the box body after penetrating through the sealing plates. The unique heat expansion device of the utility model can effectively reduce the affects of the heat exchange tube to the preheater after the heat exchange tube is heated and expanded, and greatly increases the service life of the preheater.
Description
Technical field
The utility model relates to a kind of thermal expansion equipment, enters a kind of preheater thermal expansion equipment of waste incineration furnace air in particular for preheating.
Background technology
In the incineration treatment of garbage process, for waste of low heating value is better burnt, guarantee that the combustion air that enters the incinerator burner hearth remains on stable temperature, combustion air must be through after the air preheater heating, just can send into incinerator.
Existing air preheat method adopts fume afterheat, contains steam and sulfuric acid vapor in the flue gas, and condition of work is more abominable, occurs cold end corrosion and stifled ash easily.In case cold end corrosion and stifled ash take place, will cause exhaust gases passes to stop up, the air inducing resistance increases, boiler positive pressuring combustion, this has not only reduced boiler output, even causes and be forced to blowing out.The result of corrosion can cause the air preheater pipe to reveal and damage, and causes seriously and leaks out, and causes that combustion conditions worsens, and the heating surface of having to often change when serious had both increased maintenance load and spillage of material, had influenced the normal operation of boiler again.Cold air enters fume side, also can reduce the cigarette temperature, quickens the speed of cold end corrosion and stifled ash, thereby influences the safe operation of boiler, reduces service life of equipment greatly, and flue gas is revealed also can cause environmental pollution.Adopt steam preheating just can solve above problem, but existing vapor preheater adopts the coiled heat exchanger tube, pipeline is heated and can expands, and influences preheater service life.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of air preheater thermal expansion equipment, to solve original preheater short technical problem in service life.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of air preheater thermal expansion equipment, be arranged on the preheater box body wall outside, described thermal expansion equipment has two resilient U-shaped plates up and down, the heat exchanger tube that is provided with in each fixedly connected plate sealing together of U-shaped plate both sides, preheater passes sealing plate and stretches out outside the casing.
The beneficial effects of the utility model: unique thermal expansion equipment can reduce the influence of heat exchanger tube expanded by heating to preheater effectively, has increased the service life of preheater greatly.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is a main TV structure schematic diagram of the present utility model;
Wherein: 1, casing, 2, the U-shaped plate, 3, sealing plate, 4, heat exchanger tube.
The specific embodiment
With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, a kind of air preheater thermal expansion equipment is arranged on the preheater box body wall outside, and described thermal expansion equipment has two resilient U-shaped plates up and down, the heat exchanger tube that is provided with in each fixedly connected plate sealing together of U-shaped plate both sides, preheater passes sealing plate and stretches out outside the casing.
During use, air enters in the preheater from air inlet, and distributes fast evenly by deflector, and air is sent air outlet after by the Steam Heating in the heat exchanger tube.
The thermal expansion equipment of the utility model uniqueness can reduce the influence of heat exchanger tube expanded by heating to preheater effectively, has increased the service life of preheater greatly.
Claims (1)
1. air preheater thermal expansion equipment, be arranged on preheater casing (1) the wall outside, it is characterized in that: described thermal expansion equipment has two resilient U-shaped plates (2) up and down, the heat exchanger tube (4) that is provided with in each fixedly connected plate sealing together (3) of U-shaped plate (2) both sides, preheater passes sealing plate (3) and stretches out outside the casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202311194U CN201496988U (en) | 2009-09-03 | 2009-09-03 | Heat expansion device of air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202311194U CN201496988U (en) | 2009-09-03 | 2009-09-03 | Heat expansion device of air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496988U true CN201496988U (en) | 2010-06-02 |
Family
ID=42440194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202311194U Expired - Fee Related CN201496988U (en) | 2009-09-03 | 2009-09-03 | Heat expansion device of air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496988U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287845A (en) * | 2011-05-19 | 2011-12-21 | 顾义 | Elastic sealing fin device of rotary air pre-heater |
| CN104033605A (en) * | 2014-06-18 | 2014-09-10 | 上海绿晖环保科技有限公司 | Household garbage incineration waste heat boiler and header sealing device thereof |
| CN104654335A (en) * | 2014-12-27 | 2015-05-27 | 哈尔滨锅炉厂有限责任公司 | Heat pipe sealing device and sealing device for flue |
-
2009
- 2009-09-03 CN CN2009202311194U patent/CN201496988U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287845A (en) * | 2011-05-19 | 2011-12-21 | 顾义 | Elastic sealing fin device of rotary air pre-heater |
| CN104033605A (en) * | 2014-06-18 | 2014-09-10 | 上海绿晖环保科技有限公司 | Household garbage incineration waste heat boiler and header sealing device thereof |
| CN104033605B (en) * | 2014-06-18 | 2016-08-24 | 上海绿晖环保科技有限公司 | The collection box seal device of domestic garbage incineration waste heat boiler and domestic garbage incineration waste heat boiler |
| CN104654335A (en) * | 2014-12-27 | 2015-05-27 | 哈尔滨锅炉厂有限责任公司 | Heat pipe sealing device and sealing device for flue |
| CN104654335B (en) * | 2014-12-27 | 2017-06-06 | 哈尔滨锅炉厂有限责任公司 | For the heat pipe seal and encapsulating method of flue |
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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: 20100602 Termination date: 20140903 |
|
| EXPY | Termination of patent right or utility model |