CN104266219A - Energy-saving combustion furnace for returning flue heat exchanging fresh air to combustion chamber - Google Patents
Energy-saving combustion furnace for returning flue heat exchanging fresh air to combustion chamber Download PDFInfo
- Publication number
- CN104266219A CN104266219A CN201410510464.7A CN201410510464A CN104266219A CN 104266219 A CN104266219 A CN 104266219A CN 201410510464 A CN201410510464 A CN 201410510464A CN 104266219 A CN104266219 A CN 104266219A
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- Prior art keywords
- flue
- heat exchanging
- combustion chamber
- combustion
- energy
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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 relates to an energy-saving combustion furnace which comprises a combustion chamber and a flue. The flue is connected with the combustion chamber and used for exhausting waste gas, a heat exchanging pipe is arranged in the flue, an air inlet of the heat exchanging pipe is used for sucking fresh air outside the flue, an air outlet of the heat exchanging pipe is connected with a fresh air inlet of the combustion chamber, a spiral air deflector is axially and spirally distributed in the flue along the inner wall of the flue, vertical pipes in the heat exchanging pipe are axially inserted into the spiral air deflector, the heat exchanging stroke of the high-temperature waste gas in the flue and the heat exchanging pipe is lengthened, heat exchanging effect is improved, and the screw pitch of the spiral air deflector is gradually increased from the bottom of the flue to the top of the flue. The heat exchanging pipe arranged in the flue exchanges the fresh air from the outside of the flue into hot air, the hot air is fed into the combustion chamber and mixed with coal or gas to combust, a combustion heat value of the coal or the gas and the like is improved, resource utilization rate is increased, and the energy-saving combustion furnace is applicable to energy conservation and emission reduction.
Description
The application is divisional application, the title of original application: be suitable for the combustion furnace of the new air of flue heat exchange being sent back to combustion chamber, application number 201210172920.2, the applying date: 2012-05-29.
Technical field
The present invention relates to the technical field of energy-saving combustion furnace, be specifically a kind ofly suitable for the combustion furnace of the new air of flue heat exchange being sent back to combustion chamber, specifically can be applicable to coal furnace, gas furnace and gas heater etc.
Background technology
Existing combustion furnace, as: coal furnace, gas furnace and gas heater etc., the hot waste gas of generation is directly discharged from flue or forced-ventilated pipe; And these hot waste gas often have higher temperature, how utilizing the heat energy of these hot waste gas and the combustion heat value of the coal improved in described combustion furnace or gas, to improve resource utilization, is the technical problem that this area will solve.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of structure simple, be suitable for utilizing the heat energy of the hot waste gas in flue or forced-ventilated pipe and the combustion furnace of the combustion heat value of the coal improved in described combustion furnace or gas etc.
For solving the problems of the technologies described above, combustion furnace provided by the invention comprises: combustion chamber and the flue for combustion gas be connected with this combustion chamber; Be provided with heat exchanger tube in described flue, the air intake of this heat exchanger tube is for sucking the new air outside described flue, and the gas outlet of this heat exchanger tube is connected with the new air intake of described combustion chamber.The new air entered from the new air intake of this combustion chamber and coal or gas etc. tie combining combustion.
As preferred scheme, described heat exchanger tube is vertical pipe type heat exchanger tube, is beneficial to the speed improving the new air of suction.
Further, for convenience of assembling, the air intake of described heat exchanger tube extends the top exterior walls of described flue, and the bottom outer wall of described flue is extended in the gas outlet of heat exchanger tube.
Further, for lengthening the heat exchange stroke of high-temp waste gas and described heat exchanger tube, improving heat transfer effect, in described flue, being provided with the spiral aviation baffle along the distribution of this flue inner wall axial screw; Standpipe in heat exchanger tube axially interts in this spiral aviation baffle.
Further, while heat transfer effect, improve toxic emission speed, the pitch of described spiral aviation baffle strengthens from bottom to top gradually from described flue.Because the EGT of contiguous described stack base is higher than flue top, therefore the pitch of the spiral aviation baffle of contiguous described stack base is arranged less, be beneficial to raising heat transfer effect.The pitch of the spiral aviation baffle at contiguous described flue top is arranged comparatively large, be beneficial to and improve toxic emission speed.
The present invention has positive effect relative to prior art: combustion furnace of the present invention arranges heat exchanger tube in flue, heat exchanger tube will be hot-air from the new air heat-exchange outside flue, then combustion chamber and coal or gas mixed combustion is sent into, improve the combustion heat value of coal or gas etc., improve resource utilization, be suitable for energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is the structural representation of combustion furnace in embodiment 1;
Fig. 2 is the structure expansion schematic diagram of the vertical pipe type heat exchanger tube in the flue in Fig. 1.
Detailed description of the invention
Embodiment 1
See Fig. 1 to 2, the combustion furnace 1 of the present embodiment, comprising: combustion chamber 2 and the flue 3 for combustion gas be connected with this combustion chamber 2; Be provided with heat exchanger tube 4 in described flue 3, the air intake 41 of this heat exchanger tube 4 is for sucking the new air outside described flue 3, and the gas outlet 42 of this heat exchanger tube 4 is connected through the new air intake of air exhauster 5 with described combustion chamber 2.
During work, heat exchanger tube 4 will be hot-air from the new air heat-exchange outside flue 3, then sends into combustion chamber 2 and coal or gas mixed combustion, improves the combustion heat value of coal or gas, improves resource utilization, is suitable for energy-saving and emission-reduction.
Described heat exchanger tube 4 is vertical pipe type heat exchanger tube, is beneficial to the speed improving the new air of suction.
The air intake 41 of described heat exchanger tube 4 extends the top exterior walls of described flue 3, and the bottom outer wall of described flue 3 is extended in the gas outlet of heat exchanger tube 4.
For lengthening the heat exchange stroke of high-temp waste gas and described heat exchanger tube 4, improving heat transfer effect, in described flue 3, being provided with the spiral aviation baffle 8 along the distribution of this flue inner wall axial screw; Standpipe in heat exchanger tube 4 axially interts in this spiral aviation baffle 8.
While heat transfer effect, improve toxic emission speed, the pitch of described spiral aviation baffle 8 strengthens from bottom to top gradually from described flue.Because the EGT of the bottom of contiguous described flue 3 is higher than the top of flue 3, therefore the pitch of the spiral aviation baffle 8 of the bottom of contiguous described flue 3 is arranged less, be beneficial to raising heat transfer effect.The pitch of the spiral aviation baffle 8 at the top of contiguous described flue 3 is arranged comparatively large, be beneficial to and improve toxic emission speed, thus taken into account toxic emission and heat exchange efficiency; Toxic emission is unobstructed, can guarantee that the new air of heat can enter combustion chamber 2 fast, than the efficiency of combustion improving described coal or gas.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to spirit institute's apparent change of extending out of the present invention or change and are still among protection scope of the present invention.
Claims (1)
1. an energy-saving combustion furnace, comprising: combustion chamber and the flue for combustion gas be connected with this combustion chamber; It is characterized in that: be provided with heat exchanger tube in described flue, the air intake of this heat exchanger tube is for sucking the new air outside described flue, and the gas outlet of this heat exchanger tube is connected with the new air intake of described combustion chamber;
The spiral aviation baffle along the distribution of this flue inner wall axial screw is provided with in described flue; Standpipe in heat exchanger tube axially interts in this spiral aviation baffle;
The pitch of described spiral aviation baffle strengthens from bottom to top gradually from described flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510464.7A CN104266219A (en) | 2012-05-29 | 2012-05-29 | Energy-saving combustion furnace for returning flue heat exchanging fresh air to combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510464.7A CN104266219A (en) | 2012-05-29 | 2012-05-29 | Energy-saving combustion furnace for returning flue heat exchanging fresh air to combustion chamber |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210172920.2A Division CN102661612B (en) | 2012-05-29 | 2012-05-29 | Burner suitable for delivering new air of flue heat exchange back to combustion chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104266219A true CN104266219A (en) | 2015-01-07 |
Family
ID=52157770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410510464.7A Pending CN104266219A (en) | 2012-05-29 | 2012-05-29 | Energy-saving combustion furnace for returning flue heat exchanging fresh air to combustion chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104266219A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59220233A (en) * | 1983-05-30 | 1984-12-11 | Kamui Sangyo Kk | Manufacture of baffle board of multitubular heat exchanger |
| DD226951A1 (en) * | 1984-08-08 | 1985-09-04 | Halle Maschf Veb | SPIRAL SOFT LINE DEVICE IN CYLINDRICAL TUBE BELT WASHERS |
| SU1177644A1 (en) * | 1984-05-11 | 1985-09-07 | Mo Geologorazvedoch Inst | Rotary heat exchanger |
| CN2079616U (en) * | 1990-12-17 | 1991-06-26 | 鞍山市化工二厂 | High temp. air preheater for producing carbon black |
| SU1702143A2 (en) * | 1990-02-05 | 1991-12-30 | Ленинградский Кораблестроительный Институт | Condenser |
| CA2326799A1 (en) * | 1998-03-30 | 1999-10-07 | Continental Engineering B.V. | Heat exchanger |
| JP2002235993A (en) * | 2001-02-09 | 2002-08-23 | Matsushita Refrig Co Ltd | Spiral fin tube and refrigeration air conditioning device |
| CN2709909Y (en) * | 2004-07-13 | 2005-07-13 | 成都希望电子研究所 | Heat-exchanging structure of tube heat-exchanger |
| CN201449177U (en) * | 2009-07-28 | 2010-05-05 | 青岛青力环保设备有限公司 | Overtemperature protection heat exchanger |
| CN201803629U (en) * | 2010-08-01 | 2011-04-20 | 赵团员 | Underground spiral pipe of ground source heat pump |
| CN201909551U (en) * | 2011-02-22 | 2011-07-27 | 刘智泉 | Flue gas waste heat-recycling high-efficient heat treatment furnace |
| CN102159912A (en) * | 2008-09-22 | 2011-08-17 | 埃克斯托姆公司 | Heat exchanger adapted for production of carbon black |
-
2012
- 2012-05-29 CN CN201410510464.7A patent/CN104266219A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59220233A (en) * | 1983-05-30 | 1984-12-11 | Kamui Sangyo Kk | Manufacture of baffle board of multitubular heat exchanger |
| SU1177644A1 (en) * | 1984-05-11 | 1985-09-07 | Mo Geologorazvedoch Inst | Rotary heat exchanger |
| DD226951A1 (en) * | 1984-08-08 | 1985-09-04 | Halle Maschf Veb | SPIRAL SOFT LINE DEVICE IN CYLINDRICAL TUBE BELT WASHERS |
| SU1702143A2 (en) * | 1990-02-05 | 1991-12-30 | Ленинградский Кораблестроительный Институт | Condenser |
| CN2079616U (en) * | 1990-12-17 | 1991-06-26 | 鞍山市化工二厂 | High temp. air preheater for producing carbon black |
| CA2326799A1 (en) * | 1998-03-30 | 1999-10-07 | Continental Engineering B.V. | Heat exchanger |
| JP2002235993A (en) * | 2001-02-09 | 2002-08-23 | Matsushita Refrig Co Ltd | Spiral fin tube and refrigeration air conditioning device |
| CN2709909Y (en) * | 2004-07-13 | 2005-07-13 | 成都希望电子研究所 | Heat-exchanging structure of tube heat-exchanger |
| CN102159912A (en) * | 2008-09-22 | 2011-08-17 | 埃克斯托姆公司 | Heat exchanger adapted for production of carbon black |
| CN201449177U (en) * | 2009-07-28 | 2010-05-05 | 青岛青力环保设备有限公司 | Overtemperature protection heat exchanger |
| CN201803629U (en) * | 2010-08-01 | 2011-04-20 | 赵团员 | Underground spiral pipe of ground source heat pump |
| CN201909551U (en) * | 2011-02-22 | 2011-07-27 | 刘智泉 | Flue gas waste heat-recycling high-efficient heat treatment furnace |
Non-Patent Citations (1)
| Title |
|---|
| 中国石油和石化工程研究会: "《炼油设备工程师手册 第二版》", 31 December 2009, 中国石化出版社 * |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |
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| WD01 | Invention patent application deemed withdrawn after publication |