CN103256600A - Preheating method and device of gas burner - Google Patents
Preheating method and device of gas burner Download PDFInfo
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- CN103256600A CN103256600A CN2013102297179A CN201310229717A CN103256600A CN 103256600 A CN103256600 A CN 103256600A CN 2013102297179 A CN2013102297179 A CN 2013102297179A CN 201310229717 A CN201310229717 A CN 201310229717A CN 103256600 A CN103256600 A CN 103256600A
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- gas
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The invention relates to the field of burners, in particular to a preheating method and a device of a gas burner. The method comprises the following steps of waste heat recovery: heat of smoke in a flue and a chimney of a heating furnace is recovered to preheat air and gas, and partial heat of the smoke is transferred to the air and the gas, and transferring: the gas and the air absorbing the heat are transferred into a mixing chamber of the burner. The device comprises a gas heat conduction pipe, an air heat conduction pipe and a flange plate, wherein the gas heat conduction pipe and the air heat conduction pipe are arranged in the chimney and the flue of the heating furnace respectively. According to the preheating method and the device of the gas burner, the heat of the smoke is recovered by using the gas heat conduction pipe and the air heat conduction pipe; the preheating is conducted before the gas and partial air enter the mixing chamber, so that the temperature of the mixed gas entering the mixing chamber is raised; the heat of the mixing chamber is transferred to the gas and the air, so that the heat energy waste is reduced, and the heat efficiency is improved.
Description
Technical field
The present invention relates to the burner field, in particular to a kind of gas burner pre-heating mean and device.
Background technology
Heating furnace is a kind of firing equipment, comprise gas-fired heater, electric furnace etc., wherein gas-fired heater directly heats by gas burner, but, there is heat loss in heating furnace, the heat loss due to exhaust gas of general heating furnace is very big to the thermal efficiency influence of heating furnace, account for 70% of heating furnace heat loss greatly, for example, the temperature of air and combustion gas is 0 ℃, the waste gas such as carbon dioxide that the burning back produces are discharged from chimney, the temperature of smoke evacuation place is more than 200 ℃, as can be seen, other temperature is heated to heat energy spent more than 200 ℃ from 0 ℃ belongs to thermal losses exactly, and the temperature of smoke evacuation place is not fully utilized, and causes waste.
Summary of the invention
The object of the present invention is to provide a kind of gas burner pre-heating mean and device, to solve the above problems.
A kind of gas burner pre-heating mean is provided in an embodiment of the present invention, has may further comprise the steps:
(1), waste heat recovery: the heat to flue gas in the flue of heating furnace and the chimney reclaims, and carries out preheating for air and combustion gas, makes part heat transferred air and the combustion gas of flue gas;
(2), transmit: the combustion gas and the transfer of air that absorb heat arrive in the mixing chamber of burner.
A kind of gas burner preheating device comprises combustion gas heat pipe, air heat pipe and ring flange;
Described combustion gas heat pipe and air heat pipe are located at respectively in the chimney and flue of heating furnace, and the intersection of described flue and described chimney is provided with through hole, and described through hole is fixedlyed connected with described ring flange;
Described ring flange comprises air intlet, air outlet slit, fuel gas inlet and gas outlet, and an end of described combustion gas heat pipe connects fuel gas inlet, and the other end connects gas outlet, and an end of described air heat pipe connects air intlet, and the other end connects air outlet slit;
Described gas outlet connects the entrance of the gas pipeline of burner, and described burner comprises main intake stack and secondary intake stack, and the entrance of described secondary intake stack is connected with described air outlet slit.
A kind of gas burner pre-heating mean and the device of the above embodiment of the present invention, utilize combustion gas heat pipe and air heat pipe that the heat of flue gas is reclaimed, before filling into mixing chamber, combustion gas and part air carry out preheating, the temperature of the mist that enters mixing chamber is improved, utilize itself heat transferred combustion gas and air, not only reduce the waste of heat energy, and increased the thermal efficiency.
Description of drawings
Fig. 1 shows the use state diagram of the described a kind of gas burner preheating device of the embodiment of the invention;
Fig. 2 shows the use state diagram of economizer bank and the waste heat recovery pipe of the described a kind of gas burner preheating device of the embodiment of the invention;
Fig. 3 shows the front view of the ring flange of the described a kind of gas burner preheating device of the embodiment of the invention.
Among the figure:
1, air heat pipe; 2, combustion gas heat pipe; 3, flue; 4, chimney; 5, heating furnace; 6, ring flange; 601, air intlet; 602, air outlet slit; 603, fuel gas inlet; 604, gas outlet; 7, combustion chamber; 8, economizer bank; 9, waste heat recovery pipe.
The specific embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Embodiment 1, and a kind of gas burner pre-heating mean may further comprise the steps:
(1), waste heat recovery: the heat to flue gas in the flue 3 of heating furnace 5 and the chimney 4 reclaims, and carries out preheating for air and combustion gas, makes part heat transferred air and the combustion gas of flue gas;
(2), transmit: the combustion gas and the transfer of air that absorb heat arrive in the mixing chamber of burner.
A kind of gas burner pre-heating mean of above-described embodiment, reclaim by the heat to flue gas, before filling into mixing chamber, combustion gas and part air carry out preheating, the temperature of the mist that enters mixing chamber is improved, utilize itself heat transferred combustion gas and air, not only reduce the waste of heat energy, and increased the thermal efficiency.
Embodiment 2, and as Figure 1-3, a kind of gas burner preheating device comprises air heat pipe 1, combustion gas heat pipe 2 and ring flange 6;
Air heat pipe 1 and combustion gas heat pipe 2 are located at respectively in the flue 3 and chimney 4 of heating furnace 5, and flue 3 is provided with through hole with the intersection of chimney 4, and through hole is fixedlyed connected with ring flange 6;
Ring flange 6 comprises air intlet 601, air outlet slit 602, fuel gas inlet 603 and gas outlet 604, one end of air heat pipe 1 connects fuel gas inlet 603, the other end connects gas outlet 604, and an end of combustion gas heat pipe 2 connects air intlet 601, and the other end connects air outlet slit 602;
A kind of gas burner pre-heating mean and the device of above-described embodiment, utilize the heat of air heat pipe 1 and 2 pairs of flue gases of combustion gas heat pipe to reclaim, before filling into mixing chamber, combustion gas and part air carry out preheating, the temperature of the mist that enters mixing chamber is improved, utilize itself heat transferred combustion gas and air, not only reduce the waste of heat energy, and increased the thermal efficiency.
Embodiment 3, and as Figure 1-3, a kind of gas burner preheating device comprises air heat pipe 1, combustion gas heat pipe 2 and ring flange 6;
Air heat pipe 1 and combustion gas heat pipe 2 are located at respectively in the flue 3 and chimney 4 of heating furnace 5, and flue 3 is provided with through hole with the intersection of chimney 4, and through hole is fixedlyed connected with ring flange 6;
Ring flange 6 comprises air intlet 601, air outlet slit 602, fuel gas inlet 603 and gas outlet 604, one end of air heat pipe 1 connects fuel gas inlet 603, the other end connects gas outlet 604, and an end of combustion gas heat pipe 2 connects air intlet 601, and the other end connects air outlet slit 602;
Utilize the heat of air heat pipe 1 and 2 pairs of flue gases of combustion gas heat pipe to reclaim, before filling into mixing chamber, combustion gas and part air carry out preheating, the temperature of the mist that enters mixing chamber is improved, utilize itself heat transferred combustion gas and air, not only reduce the waste of heat energy, and increased the thermal efficiency.
Be socketed with economizer bank 8 near on the combustion chamber 7 of burner, be socketed with waste heat recovery pipe 9 on the main intake stack, economizer bank 8 interconnects with waste heat recovery pipe 9, and economizer bank 8 is with heat transferred waste heat recovery pipe 9.Economizer bank 8 is with the heat transferred waste heat recovery pipe 9 of partial combustion chamber 7, and waste heat recovery pipe 9 increases the temperature of air with the air in the heat transferred air intake passage, increases the thermal efficiency.
Secondary intake stack is provided with the constant speed blower fan.In the mixing chamber of the burner that the constant speed blower fan conveniently adds air, guarantee the sufficient combustion of combustion gas.
Be equipped with by-passing valve on gas outlet 604, fuel gas inlet 603, air outlet slit 602 and the air intlet 601.Can regulate control air and combustion gas.
Through hole is provided with adpting flange, and adpting flange is fixedlyed connected with ring flange 6.Interconnect by adpting flange and ring flange 6, make the more firm of installation, be convenient to the connection of inside and outside pipeline.
Air heat pipe 1 and combustion gas heat pipe 2 are high temperature resistant, corrosion resistant metal heat-conducting pipe.High temperature resistant, corrosion resistant metal material has guaranteed good heat-conducting effect, simultaneously, can not be damaged longer service life.
Combustion gas water batch heater 5 with 1,000,000 kilocalories (1130KW) is example:
About the temperature of combustion chamber 7+1000 ℃; Case temperature with burner contact site body of heater: about+350 ℃; The temperature of heating furnace 5 chimneys 4: about+200 ℃; Air themperature: 0 ℃; Fuel gas temperature :+10 ℃; Through air and the combustion gas mixing gas of preheating, before burning fuel gas temperature can reach+100 ℃.
Wherein, combustion gas is natural gas, and main component is methane CH
4, methane CH
4With airborne oxygen O
2Light reaction, generate carbon dioxide CO
2With water H
2O, i.e. 1 cube of methane completing combustion needs 2 cubes of oxygen, and oxygen content is 21% in the air, is (2/0.21)=10 cube so need air.
Combustion gas every day 2600 sides * 70%(average load)=1820 sides, namely 1820/24=76 anti-/ hour, internal combustion 76 side's natural gases needed air 760 side's air in one hour, had 836 side's mists to enter in the heating furnace in 1 hour.
How many heats does 1 cubic metre air need from 0 degree to 100 degree so? the heavy 1.239kg of 1 cubic metres of air in the time of 0 ℃, required heat is G=temperature difference * specific heat * quality=100 * 1.022 * 1.293=132.15kj/m
3, the heat of air from 0 ℃ to 100 ℃ of needs that heats 836 cubic metres is: G=836m
3* 132.15kj/m
3=110472.9kj=30.67KW(kilowatt-hour=1KW/h=3600kj), the heating furnace average power consumption is that the 770KW(average load is by 70%), be equivalent to improve power 30.67/770=4%, namely energy savings 4%.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a gas burner pre-heating mean is characterized in that, may further comprise the steps:
(1), waste heat recovery: the heat to flue gas in the flue of heating furnace and the chimney reclaims, and carries out preheating for air and combustion gas, makes part heat transferred air and the combustion gas of flue gas;
(2), transmit: the combustion gas and the transfer of air that absorb heat arrive in the mixing chamber of burner.
2. a gas burner preheating device is characterized in that: comprise combustion gas heat pipe, air heat pipe and ring flange;
Described combustion gas heat pipe and air heat pipe are located at respectively in the chimney and flue of heating furnace, and the intersection of described chimney and described flue is provided with through hole, and described through hole is fixedlyed connected with described ring flange;
Described ring flange comprises air intlet, air outlet slit, fuel gas inlet and gas outlet, and an end of described combustion gas heat pipe connects fuel gas inlet, and the other end connects gas outlet, and an end of described air heat pipe connects air intlet, and the other end connects air outlet slit;
Described gas outlet connects the entrance of the gas pipeline of burner, and described burner comprises main intake stack and secondary intake stack, and the entrance of described secondary intake stack is connected with described air outlet slit.
3. gas burner preheating device according to claim 2, it is characterized in that: be socketed with economizer bank near on the combustion chamber of described burner, be socketed with the waste heat recovery pipe on the described main intake stack, described economizer bank and described waste heat recovery pipe interconnect, and described economizer bank is with the described waste heat recovery pipe of heat transferred.
4. gas burner preheating device according to claim 2, it is characterized in that: described secondary intake stack is provided with the constant speed blower fan.
5. gas burner preheating device according to claim 2 is characterized in that: be equipped with by-passing valve on described gas outlet, fuel gas inlet, air outlet slit and the air intlet.
6. gas burner preheating device according to claim 2, it is characterized in that: described through hole is provided with adpting flange, and described adpting flange is fixedlyed connected with described ring flange.
7. gas burner preheating device according to claim 2, it is characterized in that: described combustion gas heat pipe and described air heat pipe are high temperature resistant, corrosion resistant metal heat-conducting pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102297179A CN103256600A (en) | 2013-06-08 | 2013-06-08 | Preheating method and device of gas burner |
| CN2013104306276A CN103471130A (en) | 2013-06-08 | 2013-09-18 | Preheating method and preheating device for gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102297179A CN103256600A (en) | 2013-06-08 | 2013-06-08 | Preheating method and device of gas burner |
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| CN103256600A true CN103256600A (en) | 2013-08-21 |
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| CN2013102297179A Pending CN103256600A (en) | 2013-06-08 | 2013-06-08 | Preheating method and device of gas burner |
| CN2013104306276A Pending CN103471130A (en) | 2013-06-08 | 2013-09-18 | Preheating method and preheating device for gas burner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471130A (en) * | 2013-06-08 | 2013-12-25 | 天津高德恒立科技有限公司 | Preheating method and preheating device for gas burner |
| CN108050854A (en) * | 2018-01-18 | 2018-05-18 | 宁波东成群利机械有限公司 | Burner gas feeding mechanism and melting holding furnace |
| CN109140427A (en) * | 2018-09-30 | 2019-01-04 | 西安鑫顶天装备智能科技有限公司 | A kind of combustion gas fission device |
| CN111059561A (en) * | 2019-12-25 | 2020-04-24 | 东莞市建安管桩有限公司 | Tubular pile boiler steam system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57196007A (en) * | 1981-05-29 | 1982-12-01 | Kawasaki Steel Corp | Operation of hot-air furnace |
| CN2635677Y (en) * | 2003-06-20 | 2004-08-25 | 北京金信合达能源科技有限公司 | Air and gas double-preheating hot-blast stove |
| CN100443847C (en) * | 2006-01-05 | 2008-12-17 | 中国石油化工集团公司 | Tube type heating furnace |
| CN101943405B (en) * | 2010-09-17 | 2015-04-08 | 北京京杰锐思技术开发有限公司 | Energy-saving radiant tube component |
| CN202057038U (en) * | 2011-05-19 | 2011-11-30 | 瑞安市集优节能环保设备有限公司 | Boiler flue gas waste heat recovery device for leather factories |
| CN102353042A (en) * | 2011-09-09 | 2012-02-15 | 北京交通大学 | Adjusting method for circulating ash quantity, separator and combustion system |
| CN203642216U (en) * | 2013-06-08 | 2014-06-11 | 天津高德恒立科技有限公司 | Preheating device of gas burner |
| CN103256600A (en) * | 2013-06-08 | 2013-08-21 | 天津高德恒立科技有限公司 | Preheating method and device of gas burner |
-
2013
- 2013-06-08 CN CN2013102297179A patent/CN103256600A/en active Pending
- 2013-09-18 CN CN2013104306276A patent/CN103471130A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471130A (en) * | 2013-06-08 | 2013-12-25 | 天津高德恒立科技有限公司 | Preheating method and preheating device for gas burner |
| CN108050854A (en) * | 2018-01-18 | 2018-05-18 | 宁波东成群利机械有限公司 | Burner gas feeding mechanism and melting holding furnace |
| CN109140427A (en) * | 2018-09-30 | 2019-01-04 | 西安鑫顶天装备智能科技有限公司 | A kind of combustion gas fission device |
| CN111059561A (en) * | 2019-12-25 | 2020-04-24 | 东莞市建安管桩有限公司 | Tubular pile boiler steam system |
| CN111059561B (en) * | 2019-12-25 | 2022-07-01 | 东莞市建安管桩有限公司 | Tubular pile boiler steam system |
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| Publication number | Publication date |
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| CN103471130A (en) | 2013-12-25 |
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Application publication date: 20130821 |