CN101900332A - Heat accumulation type super-low calorific value fuel gas treatment and energy utilization device - Google Patents
Heat accumulation type super-low calorific value fuel gas treatment and energy utilization device Download PDFInfo
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- CN101900332A CN101900332A CN201010166387XA CN201010166387A CN101900332A CN 101900332 A CN101900332 A CN 101900332A CN 201010166387X A CN201010166387X A CN 201010166387XA CN 201010166387 A CN201010166387 A CN 201010166387A CN 101900332 A CN101900332 A CN 101900332A
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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 invention discloses a heat accumulation type super-low calorific value fuel gas treatment and energy utilization device, which is applied to reciprocal flow heat accumulation type combustion technology of the super-low calorific value fuel gas in industrial production. The device consists of a device body, a periodic reverse gas flow circulating pipeline and a measurement and control system. The self-maintenance combustion of super-low calorific value fuel gases with extremely low methane concentration, such as coal mine methane, gases produced in municipal solid waste landfill, combustible gases produced during pyrolysis and smolder (such as battery heating) of biomass in nature and in the lives of human society and the like, can be realized in the device; and because the aperture of low-porosity porous medium filled in a porous medium packed bed of a combustion chamber is less than the quenching diameter, the combustion can be controlled within the combustion chamber. In addition, a part of heat produced by the combustion of the super-low calorific value fuel gas is pumped out by a smoke suction device and conveyed to the conventional exhaust heat boilers for heating water for heating or producing super-heated steam for power generation; and thus the device has the advantages of energy conservation and environmental friendliness.
Description
Technical field
The present invention relates to the heat accumulating burner capable that back and forth flows of super-low calorific value fuel gas in a kind of industrial production, relate in particular to a kind of heat accumulating burner capable that back and forth flows with the energy recycling.
Background technology
Gaseous fuel is divided into high, medium and low calorific value fuel gas by combustion heat value, but super-low calorific value fuel gas is not clearly stipulated, usually mainly be methane gas containing combustible component, concentration value between 0.1%～5%, as: mists such as mine air-lack, petrochemical industry gas industry waste gas, rubbish landfill gas and biogas are referred to as super-low calorific value fuel gas.Because the super-low calorific value fuel gas methane content is low, be difficult to be utilized by the combustion technology of routine, most of directly being discharged in the middle of the atmosphere caused huge energy waste.Simultaneously, methane gas is the gas with strong greenhouse effects, causes environmental pollution.
The regenerative combustion technology that back and forth flows is exactly an effective way of reuse super-low calorific value fuel gas.Combustion gas is at the reciprocal flow burning of heat accumulating burner capable intercycle, the combustion heat that utilization is stored in the filling porous medium comes the fresh pre-mixed gas of preheating, low heat value and even super-low calorific value fuel gas can be realized within it from keeping burning, and fuel gas buring and heat transfer type can also suppress pollutants generations such as NOx and CO effectively in the filling porous medium.But how the combustion heat of methane gas does not reclaim this part unnecessary energy except that realizing that keeping certainly the burning of methane is unnecessary in addition but all relate in the present heat accumulating burner capable that back and forth flows.
Summary of the invention
The object of the invention just provides a kind of heat accumulation type super-low calorific value fuel gas and handles and the energy use device, make and contain the extremely low super-low calorific value fuel gas of methane concentration, can realize therein institute's methane-containing gas being changed into water and carbon dioxide, and a part of excess energy that discharges of will burning is used for generating electricity by flue gas aspirator extraction back heat supply or generation superheated steam from keeping reciprocal mobile heat storage type combustion.
Technical solution of the present invention is: heat accumulation type super-low calorific value fuel gas is handled and the energy use device comprises apparatus main body, periodic reverse airflow pipeline and measurement and control system.Apparatus main body is made of housing, porous plate A, heat regenerator, dividing plate A, porous plate B, combustion chamber, porous media packed bed, small porosity foamed ceramics, macroporosity foamed ceramics, flue gas aspirator, flue gas aspirator valve, porous plate C, ignition space, burner and heat-insulation layer.Bottom gas channel shell and dividing plate B support porous plate A, and porous plate A holds up two rectangle heat regenerators that are arranged symmetrically in the left and right sides dividing plate A outside.Fill the ceramic honey comb of macropore in the rectangle heat regenerator packing space.In the combustion chamber, arrange two porous media packed beds in the ignition space bilateral symmetry.Fill small porosity foamed ceramics and macroporosity foamed ceramics packing material in the porous media packed bed, small porosity foamed ceramics aperture is less than the combustion flame quenching diameter.The flue gas aspirator is arranged in the macroporosity foamed ceramics packing material of combustion chamber.Apparatus main body housing interior sidewall surface and top wall are arranged heat-insulation layer.Periodic reverse airflow pipeline is made of air inlet pipe, blast pipe, change-over valve, sealing gasket A, sealing gasket B, valve gas channel, bottom gas channel A, bottom gas channel B, valve driving shaft, bottom gas channel shell, base plate, base plate porting A, base plate porting B, dividing plate B.Actuator drives valve driving shaft rotation by driven by motor, thereby drive change-over valve cycle Rotate 180 degree angle, the air inlet pipe cycle alternately is communicated with base plate porting A and base plate porting B, the valve gas channel cycle alternately is communicated with base plate porting B and base plate porting A, forms the device intercycle and replaces air-flow forward flow and air-flow reverse flow.Measurement and control system comprises that sensing methane concentration device A, temperature sensor A, sensing methane concentration device B, temperature sensor B, temperature sensor C, temperature sensor D, signal transmssion line and switch board constitute.The sensor signal transmission line is connected with switch board.Sensing methane concentration device A and temperature sensor A are fixed on the outside wall surface of air inlet pipe, and sensor probe inserts in the pipeline of air inlet pipe.Sensing methane concentration device B and temperature sensor B are fixed on the outside wall surface of blast pipe, and sensor probe inserts in the pipeline of blast pipe.On the outside wall surface of temperature sensor C arrangement apparatus body shell, sensor probe inserts in the filled media of heat regenerator.On the outside wall surface of temperature sensor D arrangement apparatus body shell, sensor probe inserts in the filled media of two porous media packed beds about the combustion chamber.
The invention has the beneficial effects as follows: the fuel gas that produces in the biomass pyrolytic and (as the heating of the combustion pond) process of glowing among gas, nature and the human lives that mine air-lack, municipal refuse landfill produce etc. contains the extremely low super-low calorific value fuel gas of methane concentration can be realized therein from keeping burning, and the part heat that produces that will burn pumped out by the flue gas aspirator, delivers to conventional waste heat boiler and is used for the heat hot water heat supply or produces superheated steam being used for generating.This device can prevent their pollutions to environment, again these gases is used.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is air inlet-outlet pipe line structure figure of the present invention.
Fig. 3 is the structure chart of change-over valve part of the present invention.
Among the figure, 1. apparatus main body, 2. housing, 3. porous plate A, 4. heat regenerator, 5. dividing plate A, 6. porous plate B, 7. combustion chamber, 8. porous media packed bed, 9. small porosity foamed ceramics, 10. macroporosity foamed ceramics, 11. flue gas aspirators, 12. flue gas aspirator valves, 13. porous plate C, 14. ignition spaces, 15. burners, 16. heat-insulation layer, 17. air inlet pipe, 18. blast pipes, 19. change-over valve, 20. sealing gasket A, 21. sealing gasket B, 22. the valve gas channel, 23. bottom gas channel A, 24. bottom gas channel B, 25. the valve driving shaft, 26. bottom gas channel shells, 27. base plates, 28. base plate porting A, 29. base plate porting B, 30. dividing plate B, 31. sensing methane concentration device A, 32. temperature sensor A, 33. sensing methane concentration device B, 34. temperature sensor B, 35. temperature sensor C, 36. temperature sensor D, 37. signal transmssion line, 38. switch board, 39. air-flow forward flow, 40. air-flow reverse flow.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, heat accumulation type super-low calorific value fuel gas is handled and the energy use device comprises apparatus main body, periodic reverse airflow pipeline and measurement and control system.Apparatus main body 1 is made of housing 2, porous plate A3, heat regenerator 4, dividing plate A5, porous plate B6, combustion chamber 7, porous media packed bed 8, small porosity foamed ceramics 9, macroporosity foamed ceramics 10, flue gas aspirator 11, flue gas aspirator valve 12, porous plate C13, ignition space 14, burner 15 and heat-insulation layer 16.Dividing plate B30 is divided into bottom gas channel A23 and bottom gas channel B24 with the bottom gas channel.Bottom gas channel shell 26 and dividing plate B30 support porous plate A3, and porous plate A3 holds up two heat regenerators 4 that are arranged symmetrically in the left and right sides dividing plate A5 outside.Porous plate A3, heat-insulation layer 16 internal faces and porous plate B6 constitute rectangle heat regenerator 4 packing spaces.Fill the ceramic honey comb of macropore in rectangle heat regenerator 4 packing spaces.Both sides porous plate B6 and apparatus main body 1 front and back heat-insulation layer 16 internal faces constitute combustion chamber 7.In the combustion chamber 7, arrange two porous media packed beds 8 in ignition space 14 bilateral symmetry.Fill small porosity foamed ceramics 9 and macroporosity foamed ceramics 10 packing materials in the porous media packed bed 8, small porosity foamed ceramics 9 apertures are less than the combustion flame quenching diameter.Burner 15 is arranged in 7 ignition spaces, 14 tops, combustion chamber.Flue gas aspirator 11 is arranged in 7 macroporosity foamed ceramicses, 10 packing materials of combustion chamber.Flue gas aspirator valve 12 is installed on flue gas aspirator 11 export pipelines.Apparatus main body 1 housing, 2 interior sidewall surface and top wall are arranged heat-insulation layer 16, and what fill in the heat-insulation layer 16 is heat-insulating material.Periodic reverse airflow pipeline is made of air inlet pipe 17, blast pipe 18, change-over valve 19, sealing gasket A20, sealing gasket B21, valve gas channel 22, bottom gas channel A23, bottom gas channel B24, valve driving shaft 25, bottom gas channel shell 26, base plate 27, base plate porting A28, base plate porting B29, dividing plate B30.Change-over valve 19 upper surfaces are connected with sealing gasket A20, and sealing gasket A20 is connected with base plate 27 lower surfaces.Change-over valve 19 lower surfaces are connected with sealing gasket B21, and sealing gasket B21 is connected with blast pipe 18 outer surfaces.Actuator drives valve driving shaft 25 rotations by driven by motor, thereby drive 19 cycle of change-over valve Rotate 180 degree angle, 17 cycles of air inlet pipe alternately are communicated with base plate porting A28 and base plate porting B29,22 cycles of valve gas channel alternately are communicated with base plate porting B29 and base plate porting A28, form the device intercycle and replace air-flow forward flow 39 and air-flow reverse flow 40.Measurement and control system comprises that sensing methane concentration device A31, temperature sensor A32, sensing methane concentration device B33, temperature sensor B34, temperature sensor C35, temperature sensor D36, signal transmssion line 37 and switch board 38 constitute.Sensor signal transmission line 37 is connected with switch board 38.Sensing methane concentration device A31 and temperature sensor A32 are fixed on the outside wall surface of air inlet pipe 17, and sensor probe inserts in the pipeline of air inlet pipe.Sensing methane concentration device B33 and temperature sensor B34 are fixed on the outside wall surface of blast pipe, and sensor probe inserts in the pipeline of blast pipe.On the outside wall surface of temperature sensor C35 arrangement apparatus main body 1 housing 2, sensor probe inserts in the filled media of heat regenerator 4.On the outside wall surface of temperature sensor D36 arrangement apparatus main body 1 housing 2, sensor probe inserts in the filled media of two porous media packed beds 8 about the combustion chamber.
The course of work of the present invention is: when starting heat accumulation type super-low calorific value fuel gas (rare gas) processing and energy use device, place air inlet pipe 17 to be communicated with change-over valve 19 circumferential angles with base plate porting A28, valve gas channel 22 is communicated with base plate porting B24 and blast pipe 18, forms air-flow forward flow 39 passages.Burner 15 igniting, combustion gas ignition space 14 burning release heat in combustion chamber 7 have heated the filled media in porous media packed bed 8 and the heat regenerator 4.Filled media is heated to above after the methane gas burning occurrence temperature in the porous media packed bed 8, introduces super-low calorific value fuel gas, closes burner.Two porous media packed bed 8 internal combustion of super-low calorific value fuel gas in combustion chamber 7, the heat transmission that discharges burning also is stored in the filled media of combustion chamber 7 right side porous media packed beds 8 and right side heat regenerator 4.Through after the half period, place air inlet pipe 17 to be communicated with change-over valve 19 with base plate porting B29, valve gas channel 22 is communicated with base plate porting A28 and blast pipe 18, forms air-flow reverse flow 40 passages.The super-low calorific value fuel gas of access to plant, after the heat preheating of filled media in right side porous media packed bed 8 and the right side heat regenerator 4, in porous media packed bed 8 internal combustion, the heat transmission that again burning is discharged also is stored in left side porous media packed bed 8 and left side heat regenerator 4 filled medias, with the super-low calorific value fuel gas that is used to introduce in the half period under the preheating.After device starts, 19 cycle of change-over valve Rotate 180 degree angle, super-low calorific value fuel gas flows at two porous media packed beds, 8 intercycle both forward and reverse directions, forms from keeping the adverse current flameless combustion.Because small porosity porous media 9 apertures are less than quenching diameter, so burning can be controlled in the combustion chamber 8 in the 7 porous media packed beds 8 of combustion chamber.Simultaneously, sensing methane concentration device A31, temperature sensor A32, sensing methane concentration device B33, temperature sensor B34, temperature sensor C35 and temperature sensor D36 import temperature signal and the methane concentration signal of measuring in the switch board 38 into, and switch board 38 microcomputer received signals also produce feedback control signal.Temperature in the porous media packed bed 8 is elevated to a certain degree, and switch board 38 Control Systems of Microcomputer are opened flue gas air extractor valve 12 automatically, starts flue gas air extractor 11 and carries out the flue gas suction.If the temperature in the porous media packed bed 8 is reduced to a certain degree, microcomputer will control and cut out flue gas air extractor 11 automatically, close flue gas air extractor valve 12.If methane concentration is low excessively, will start burner 15 automatically, keep filled media normal operating temperature in combustion chamber 7 and the heat regenerator 4 with combustion gas aftercombustion in ignition space 14.
The present invention is not limited to the foregoing description, and protection scope of the present invention is all classified in any equivalent concepts or change in the technical scope that the present invention discloses as.
Claims (4)
1. a heat accumulation type super-low calorific value fuel gas is handled and the energy use device, comprise apparatus main body (1), periodic reverse airflow pipeline, it is characterized in that: also comprise measurement and control system, and in the interior macroporosity foamed ceramics in combustion chamber (7) (10) packing material of described apparatus main body (1) flue gas aspirator (11) is set, flue gas aspirator valve (12) is installed on flue gas aspirator (11) export pipeline.
2. heat accumulation type super-low calorific value fuel gas as claimed in claim 1 is handled and the energy use device, and it is characterized in that: described apparatus main body (1) comprises housing (2), porous plate A (3), heat regenerator (4), dividing plate A (5), porous plate B (6), combustion chamber (7), porous media packed bed (8), small porosity foamed ceramics (9), macroporosity foamed ceramics (10), flue gas aspirator (11), flue gas aspirator valve (12), porous plate C (13), ignition space (14), burner (15) and heat-insulation layer (16); Bottom gas channel shell (26) and dividing plate B (30) support porous plate A (3), porous plate A (3) holds up two the rectangle heat regenerators (4) that are arranged symmetrically in left and right sides dividing plate A (5) outside, fill the ceramic honey comb of macropore in rectangle heat regenerator (4) packing space, in the combustion chamber (7), arrange two porous media packed beds (8) in ignition space (15) bilateral symmetry, fill small porosity foamed ceramics (9) and macroporosity foamed ceramics (10) packing material in the porous media packed bed (8), small porosity foamed ceramics (9) aperture is less than the combustion flame quenching diameter, flue gas aspirator (11) is arranged in combustion chamber macroporosity foamed ceramics (10) packing material, and apparatus main body (1) housing interior sidewall surface and top wall are arranged heat-insulation layer (16).
3. heat accumulation type super-low calorific value fuel gas as claimed in claim 1 is handled and the energy use device, and it is characterized in that: described periodic reverse airflow pipeline comprises air inlet pipe (17), blast pipe (18), change-over valve (19), sealing gasket A (20), sealing gasket B (21), valve gas channel (22), bottom gas channel A (23), bottom gas channel B (24), valve driving shaft (25), bottom gas channel shell (26), base plate (27), base plate porting A (28), base plate porting B (29), dividing plate B (30); Actuator drives valve driving shaft (25) rotation by driven by motor, thereby drive change-over valve (19) cycle Rotate 180 degree angle, air inlet pipe (17) cycle alternately is communicated with base plate porting A (28) and base plate porting B (29), valve gas channel (22) cycle alternately is communicated with base plate porting B (29) and base plate porting A (28), forms the device intercycle and replaces air-flow forward flow and air-flow reverse flow.
4. heat accumulation type super-low calorific value fuel gas as claimed in claim 1 is handled and the energy use device, it is characterized in that: described measurement and control system comprises sensing methane concentration device A (31), temperature sensor A (32), sensing methane concentration device B (33), temperature sensor B (34), temperature sensor C (35), temperature sensor D (36), signal transmssion line (37) and switch board (38) constitute, sensor signal transmission line (37) is connected with switch board (38), sensing methane concentration device A (31) and temperature sensor A (32) are fixed on the outside wall surface of air inlet pipe (17), these two sensor probes insert in the pipeline of air inlet pipe (17), sensing methane concentration device B (33) and temperature sensor B (34) are fixed on the outside wall surface of blast pipe (18), these two sensor probes insert in the pipeline of blast pipe (18), on the outside wall surface of temperature sensor C (35) arrangement apparatus main body (1) housing (2), its sensor probe inserts in the filled media of heat regenerator (4), on the outside wall surface of temperature sensor D (36) arrangement apparatus body shell, its sensor probe inserts in the filled media of two porous media packed beds (8) about combustion chamber (7).
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| CN201010166387XA CN101900332B (en) | 2010-05-07 | 2010-05-07 | Heat accumulation type super-low calorific value fuel gas treatment and energy utilization device |
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| CN201010166387XA CN101900332B (en) | 2010-05-07 | 2010-05-07 | Heat accumulation type super-low calorific value fuel gas treatment and energy utilization device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620565A (en) * | 2012-03-21 | 2012-08-01 | 深圳市汇能节能投资管理有限公司 | High temperature air combustion apparatus of solid fuel |
| CN102733872A (en) * | 2012-04-01 | 2012-10-17 | 浙江亿扬能源科技有限公司 | Ventilation air methane oxidation power generation system |
| CN104456537A (en) * | 2014-10-22 | 2015-03-25 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulating type porous medium combustor component |
| CN106895436A (en) * | 2017-03-22 | 2017-06-27 | 山东理工大学 | The device that glows of the powdered carbon fast low temperature burning of biomass molding fuel burning device |
| CN107166386A (en) * | 2017-05-09 | 2017-09-15 | 华中科技大学 | A kind of premixed combustion flaring burner of anti-backfire |
| CN109028107A (en) * | 2018-10-30 | 2018-12-18 | 曹梅君 | A kind of VOCs treatment burner |
| CN109442409A (en) * | 2013-09-24 | 2019-03-08 | 湖南巴陵炉窑节能股份有限公司 | A kind of heat accumulating burner and its control method |
| CN110410289A (en) * | 2019-07-24 | 2019-11-05 | 中国科学院电工研究所 | Utilize the SOFC-GT combined generating system of solar-heating and high temperature heat chemistry heat accumulation |
| CN111023141A (en) * | 2018-12-24 | 2020-04-17 | 长沙理工大学 | Vertical boiler with porous medium hearth |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102620565A (en) * | 2012-03-21 | 2012-08-01 | 深圳市汇能节能投资管理有限公司 | High temperature air combustion apparatus of solid fuel |
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| CN109028107A (en) * | 2018-10-30 | 2018-12-18 | 曹梅君 | A kind of VOCs treatment burner |
| CN111023141A (en) * | 2018-12-24 | 2020-04-17 | 长沙理工大学 | Vertical boiler with porous medium hearth |
| CN111023141B (en) * | 2018-12-24 | 2021-08-13 | 长沙理工大学 | Vertical boiler with porous medium hearth |
| CN110410289A (en) * | 2019-07-24 | 2019-11-05 | 中国科学院电工研究所 | Utilize the SOFC-GT combined generating system of solar-heating and high temperature heat chemistry heat accumulation |
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| CN101900332B (en) | 2011-12-28 |
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Granted publication date: 20111228 Termination date: 20120507 |