CN102221219A - Direct air preheater for preheating boiler through garbage incineration - Google Patents
Direct air preheater for preheating boiler through garbage incineration Download PDFInfo
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- CN102221219A CN102221219A CN201110136926XA CN201110136926A CN102221219A CN 102221219 A CN102221219 A CN 102221219A CN 201110136926X A CN201110136926X A CN 201110136926XA CN 201110136926 A CN201110136926 A CN 201110136926A CN 102221219 A CN102221219 A CN 102221219A
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- preheater
- air
- main body
- direct
- burner body
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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
Abstract
The invention provides a direct air preheater for preheating a boiler through garbage incineration, which can preferably raise the temperature of air from relative low temperature to relative high temperature; when the heat value of garbage is too low, the moisture is too high or the environment temperature is lower, the garbage is incinerated or dried more easily, so that the sufficient combustion of the garbage is guaranteed. The direct air preheater for preheating the boiler through the garbage incineration comprises a preheater main body and a steam air preheater, and is characterized in that a combustor main body is communicated to one end of the preheater main body; the combustor main body is communicated with the preheater main body; the preheater main body is provided with an air inlet and an air outlet; the combustor main body is provided with a fuel inlet, an air inlet and an ignition system; an outlet of the steam air preheater is introduced to the air inlet of the preheater main body; and the air outlet of the preheater main body is introduced to a hearth of the boiler.
Description
Technical field
The present invention relates to a kind of frame for movement technical field that uses the consumer waste incineration boiler, be specially the direct-type air preheater that is used for the waste incineration preboiler.
Background technology
Contain many HCl, SO in the flue gas that garbage burning boiler produced
2, SO
3, harmful substance such as HF etc., for avoiding superheater generation high temperature corrosion, so general waste heat boiler nominal steam pressure is decided to be 4MPa, nominal steam temperature is 400 ℃.For preventing back-end surfaces generation cold end corrosion, the exhaust gas temperature of design refuse incineration exhaust-heating boiler generally all is higher than 190 ℃, like this, in the back-end ductwork economizer only is set usually, does not arrange air preheater.
Because domestic house refuse generally has characteristics such as low heat value, high-moisture, in order to make rubbish completing combustion, generally need regulate first and second wind-warm syndrome according to the variation of refuse thermal value, one time the highest need of wind-warm syndrome reach 300 ℃.Usually refuse incineration exhaust-heating boiler only is provided with steam type airheater in the air channel, when adding hot-air with saturated vapor, the most economical when air themperature rises to than low 20 ~ 30 ℃ of boiler saturation temperature, can only be heated to 230 ℃ to air themperature by steam type airheater.When using the rubbish of low heat value, high-moisture or environment temperature when low, 230 ℃ air themperature can't guarantee that rubbish fully burns.
Summary of the invention
At the problems referred to above, the invention provides the direct-type air preheater that is used for the waste incineration preboiler, its can be preferably air themperature by relative low-temperature heat to relatively-high temperature, when refuse thermal value is low excessively, moisture is too high or environment temperature when low, make easier burning of rubbish or drying, guarantee that rubbish fully burns.
The direct-type air preheater that is used for the waste incineration preboiler, its technical scheme is such: it comprises the preheater body, steam type airheater, it is characterized in that: an end of described preheater body is communicated with burner body, described burner body is communicated with described preheater body, described preheater body is provided with air intlet, air outlet slit, described burner body is provided with fuel inlet, air intlet, ignition system, the air intlet of described preheater body is led in the outlet of described steam type airheater, and the air outlet slit of described preheater body leads to boiler furnace.
It is further characterized in that: extraneous air connects the air intlet of described burner body by booster fan;
Described ignition system is specially the igniter gas gun apparatus;
Natural gas or oil fuel device connect the fuel inlet of described burner body by pipeline.
After adopting structure of the present invention, when using the rubbish of low heat value, high-moisture or environment temperature when low, opening point ignition system, the fuel inlet of opening burner body, air intlet, make the burner body internal-combustion, the hot flue gas flow direction preheater body that burning generates, in the preheater body with steam type airheater in the hot-air that flows into mix fully, reach the hot-air of required relatively-high temperature, make easier burning of rubbish or drying, guarantee that rubbish fully burns.When the temperature of hot-air in the steam type airheater can guarantee that rubbish fully burns, fuel inlet, air intlet, the ignition system of closing burner body got final product.
Description of drawings
Fig. 1 is a front view structural representation block diagram of the present invention.
The specific embodiment
See Fig. 1, it comprises preheater body 1, steam type airheater 2, one end of preheater body 1 is communicated with burner body 3, burner body 3 is communicated with preheater body 1, preheater body 1 is provided with air intlet 4, air outlet slit 5, burner body 3 is provided with fuel inlet 6, air intlet 7, ignition system 8, and burner body 3 is circumscribed with fire inspection cooling air device 10, and ignition system 8 is specially the igniter gas gun apparatus; Natural gas or oil fuel device 11 connect the fuel inlet 6 of burner body 3 by pipeline 12, the air intlet 4 of preheater body 1 is led in the outlet of steam type airheater 2, the air outlet slit 5 of preheater body 1 leads to boiler furnace and (does not draw among the figure, belong to existing mature structure), extraneous air is introduced boiler internal by main air blower 13, portion of air is led to the import of steam type airheater 2, another part air connects the air intlet of burner body 3 by booster fan 14, natural gas or oil fuel device 11 are installed on fuel valve group 15 inside, and fuel valve group 15 inside are provided with control valve, pressure valve assembly 9.
Its operation principle is as follows: the flow of control valve, pressure valve assembly 9 control natural gases or oil fuel device 11, and then the temperature of the hot flue gas in the control burner body 3, thereby make the hot-air that in preheater body 1, flows in the hot flue gas and steam type airheater 2 mix fully, reach the hot-air of required relatively-high temperature.
Claims (4)
1. the direct-type air preheater that is used for the waste incineration preboiler, it comprises preheater body, steam type airheater, it is characterized in that: an end of described preheater body is communicated with burner body, described burner body is communicated with described preheater body, described preheater body is provided with air intlet, air outlet slit, described burner body is provided with fuel inlet, air intlet, ignition system, the air intlet of described preheater body is led in the outlet of described steam type airheater, and the air outlet slit of described preheater body leads to boiler furnace.
2. the direct-type air preheater that is used for the waste incineration preboiler according to claim 1 is characterized in that: extraneous air connects the air intlet of described burner body by booster fan.
3. the direct-type air preheater that is used for the waste incineration preboiler according to claim 1 and 2, it is characterized in that: described ignition system is specially the igniter gas gun apparatus.
4. the direct-type air preheater that is used for the waste incineration preboiler according to claim 3 is characterized in that: natural gas or oil fuel device connect the fuel inlet of described burner body by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110136926XA CN102221219B (en) | 2011-05-25 | 2011-05-25 | Direct air preheater for preheating boiler through garbage incineration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110136926XA CN102221219B (en) | 2011-05-25 | 2011-05-25 | Direct air preheater for preheating boiler through garbage incineration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102221219A true CN102221219A (en) | 2011-10-19 |
| CN102221219B CN102221219B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110136926XA Active CN102221219B (en) | 2011-05-25 | 2011-05-25 | Direct air preheater for preheating boiler through garbage incineration |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4541864A (en) * | 1979-12-22 | 1985-09-17 | Mannesmann Demag Ag | Method and apparatus for recovery and recycling of heat from hot gases |
| JP2004101069A (en) * | 2002-09-10 | 2004-04-02 | Mitsubishi Heavy Ind Ltd | Temperature controller in incinerator and temperature control method |
| CN2679515Y (en) * | 2004-03-02 | 2005-02-16 | 王斌 | High temp burning treatment and purifying unit for harmful flammable gas |
| US20060075682A1 (en) * | 2004-10-12 | 2006-04-13 | Great River Energy | Method of enhancing the quality of high-moisture materials using system heat sources |
| JP2007265728A (en) * | 2006-03-28 | 2007-10-11 | Ngk Insulators Ltd | Effective utilization method of waste heat in incineration of waste material |
| CN101338904A (en) * | 2007-07-05 | 2009-01-07 | 北京神雾热能技术有限公司 | Low grade fuel single prewarming and thermal storage type condensation energy-saving boiler |
| CN202149498U (en) * | 2011-05-25 | 2012-02-22 | 无锡华光锅炉股份有限公司 | Direct type air pre-heater for garbage combustion pre-heating boiler |
-
2011
- 2011-05-25 CN CN201110136926XA patent/CN102221219B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4541864A (en) * | 1979-12-22 | 1985-09-17 | Mannesmann Demag Ag | Method and apparatus for recovery and recycling of heat from hot gases |
| JP2004101069A (en) * | 2002-09-10 | 2004-04-02 | Mitsubishi Heavy Ind Ltd | Temperature controller in incinerator and temperature control method |
| CN2679515Y (en) * | 2004-03-02 | 2005-02-16 | 王斌 | High temp burning treatment and purifying unit for harmful flammable gas |
| US20060075682A1 (en) * | 2004-10-12 | 2006-04-13 | Great River Energy | Method of enhancing the quality of high-moisture materials using system heat sources |
| JP2007265728A (en) * | 2006-03-28 | 2007-10-11 | Ngk Insulators Ltd | Effective utilization method of waste heat in incineration of waste material |
| CN101338904A (en) * | 2007-07-05 | 2009-01-07 | 北京神雾热能技术有限公司 | Low grade fuel single prewarming and thermal storage type condensation energy-saving boiler |
| CN202149498U (en) * | 2011-05-25 | 2012-02-22 | 无锡华光锅炉股份有限公司 | Direct type air pre-heater for garbage combustion pre-heating boiler |
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| Publication number | Publication date |
|---|---|
| CN102221219B (en) | 2013-03-13 |
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Address after: 214028 No. 3 Chengnan Road, new Wu District, Jiangsu, Wuxi Patentee after: Wuxi Huaguang Environmental Protection Energy Group Co., Ltd Address before: 214028 No. 3 Chengnan Road, New District, Jiangsu, Wuxi Patentee before: WUXI HUAGUANG BOILER Co.,Ltd. |
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