CN103697587A - Indirect fuel-gas hot-air boiler - Google Patents
Indirect fuel-gas hot-air boiler Download PDFInfo
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- CN103697587A CN103697587A CN201310620078.9A CN201310620078A CN103697587A CN 103697587 A CN103697587 A CN 103697587A CN 201310620078 A CN201310620078 A CN 201310620078A CN 103697587 A CN103697587 A CN 103697587A
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Abstract
The invention relates to a hot-air boiler, in particular to an indirect fuel-gas hot-air boiler, which solves the problems of high operating cost, low energy efficiency, unstable air outlet temperature and high maintenance rate of the fuel-gas hot-air boiler. The indirect fuel-gas hot-air boiler comprises a combustion chamber, a heat exchange chamber and a high-temperature flue-gas mixing chamber, wherein an internal furnace is arranged in the combustion chamber, and a combustor is arranged in the internal furnace; the combustion chamber is connected with the heat exchange chamber; a cold-air inlet, a hot-air outlet and a heat exchange system are formed and arranged in the heat exchange chamber; the combustion chamber is connected with the high-temperature flue-gas mixing chamber which is connected with the heat exchange chamber; the heat exchange system comprises a first flue-gas return chamber, wherein the first flue-gas return chamber is connected with the high-temperature flue-gas mixing chamber, the first flue-gas return chamber is connected with a plurality of flue-gas return chambers in sequence through heat exchange tubes, the last flue-gas return chamber is connected with an exhaust port, and a circular flue-gas interface is formed in the exhaust port and is connected with a circular flue-gas tube which is connected with the high-temperature flue-gas mixing chamber.
Description
Technical field
The present invention relates to a kind of hot air boiler, specifically a kind of indirect type fuel vapor hot blast boiler.
Background technology
Hot-blast stove starts extensive use in late 1970s in China as the hot-blast stove of thermal power machinery, and it has become the regeneration product of electric heat source and traditional steam power thermal source in many industries.Existing fuel vapor hot blast boiler machine structure is unreasonable, and operating cost is high, and the low leaving air temp of efficiency is unstable, uses very inconvenient and maintenance rate is high.
Summary of the invention
The present invention is high in order to solve fuel vapor hot blast boiler operatiopn cost, and the problem that the low leaving air temp of efficiency is unstable and maintenance rate is high provides a kind of indirect type fuel vapor hot blast boiler especially.
The present invention takes following technical scheme: a kind of indirect type fuel vapor hot blast boiler comprises combustion chamber and Heat Room, in combustion chamber, be provided with flue, in flue, be provided with burner, combustion chamber is connected with Heat Room, in Heat Room, be provided with cold wind import, hot-blast outlet and heat-exchange system, also comprise high-temperature flue gas mixing chamber, combustion chamber is connected with high-temperature flue gas mixing chamber, and high-temperature flue gas mixing chamber is connected with Heat Room; Heat-exchange system comprises the first flue gas backhaul chamber being connected with high-temperature flue gas mixing chamber, the first flue gas backhaul chamber is connected by heat exchanger tube successively with some flue gases backhaul chamber, last flue gas backhaul chamber is connected with exhaust opening, exhaust opening is provided with circulating flue gas interface, circulating flue gas interface is connected with circulating flue gas pipe, and circulating flue gas pipe is connected with high-temperature flue gas mixing chamber again.
Described circulating flue gas pipe is rotatably provided in flue outside along the outer wall of flue.
Described combustion chamber and Heat Room adopt Split type structure.Both can fold up and down installation, also can laterally install left and right.
After natural gas via burner is lighted, fully burning in flue (combustion chamber), the high-temperature flue gas that burning produces out enters high-temperature flue gas mixing chamber from combustion chamber, why in high-temperature flue gas mixing chamber, carry out hybrid cooling with low-temperature flue gas (approximately 120 ℃ of temperature) from circulating flue gas pipe (will lower the temperature, because spend up to more than 1000 from combustion chamber flue-gas temperature out, can not directly enter heat exchanger and add hot-air, temperature is too high, damage heat exchanger), be cooled to after 600-700 ℃ and enter in the heat exchanger tube in Heat Room, the air of sending into outside heat exchanger tube with ventilation blower carries out the required hot blast of heat exchange generation production.
After flue gas heat exchange after cooling completes, minute two-way, a road is through exhaust opening chimney, one tunnel is through circulating flue gas pipe, outer wall rotation around flue travels forward, and enters mixing chamber and carries out flue-gas temperature adjusting (effect of circulating flue gas: cooling flue on the one hand, on the one hand for regulating the temperature of flue gas).
Compared with prior art, the present invention has following beneficial effect:
1. combustion furnace and heat exchanger adopt Split type structure, and flexible arrangement, is applicable to maximization future development;
2. heat exchanger adopts shell and tube, and heat exchange area is arranged sufficient, and exhaust gas temperature is low, and the thermal efficiency is up to more than 90%, and energy-saving effect is obvious;
3. adopt flue gas recirculating technique, make full use of the temperature adjusting that the useless flue gas of afterbody participates in flue gas, protected heat exchanger on the one hand, saved again on the other hand a large amount of energy.The fuel such as town gas, can be supporting applicable with various drying equipments.
Accompanying drawing explanation
Fig. 1 is one of scheme of installation of the present invention;
Fig. 2 is two of scheme of installation of the present invention;
1-cold wind import in figure, 2-exhaust opening, 3-circulating flue gas interface, 4-flue gas backhaul chamber, 5-heat exchanger tube, 6-hot-blast outlet, 7-the first flue gas backhaul chamber, 8-high-temperature flue gas mixing chamber, 9-combustion chamber, 10-flue, 11-circulating flue gas pipe, 12-burner, 13-Heat Room.
The specific embodiment
As shown in Figure 1, 2, a kind of indirect type fuel vapor hot blast boiler comprises combustion chamber 9 and Heat Room 13, in combustion chamber 9, be provided with flue 10, in flue 10, be provided with burner 12, combustion chamber 9 is connected with Heat Room 13, is provided with cold wind import 1, hot-blast outlet 6 and heat-exchange system in Heat Room 13, also comprises high-temperature flue gas mixing chamber 8, combustion chamber 9 is connected with high-temperature flue gas mixing chamber 8, and high-temperature flue gas mixing chamber 8 is connected with Heat Room 13; Described heat-exchange system comprises the first flue gas backhaul chamber 7 being connected with high-temperature flue gas mixing chamber 8, the first flue gas backhaul chamber 7 is connected by heat exchanger tube 5 successively with some flue gases backhaul chamber 4, last flue gas backhaul chamber 4 is connected with exhaust opening 2, exhaust opening 2 is provided with circulating flue gas interface 3, circulating flue gas interface 3 is connected with circulating flue gas pipe 11, and circulating flue gas pipe 11 is connected with high-temperature flue gas mixing chamber 8 again.
Described circulating flue gas pipe 11 is rotatably provided in flue 10 outsides along the outer wall of flue 10.
Described combustion chamber 9 and Heat Room 13 adopt Split type structure.
After natural gas via burner 12 is lighted, in the interior abundant burning of flue 10, the high-temperature flue gas that burning produces 9 out enters high-temperature flue gas mixing chamber 8 from combustion chamber, and the low-temperature circulating flue gas (approximately 120 ℃ of temperature) with from circulating flue gas pipe 11 carries out hybrid cooling in high-temperature flue gas mixing chamber 8.Be cooled to after 600-700 ℃ and enter in the heat exchanger tube 5 in heat exchanging body, the air of sending into outside heat exchanger tube 5 with cold wind import 1 passes through flue gas backhaul chamber 4, carries out the required hot blast of heat exchange generation production and sends by hot-blast outlet 6.
Flue gas after cooling enters in heat exchanger tube 5 and carries out heat exchange with air, temperature is down to 120 ℃ of left and right, divide two-way, one tunnel enters chimney through smoke exhaust fan, one tunnel is through circulating flue gas interface, along the periphery of flue 10, tangentially enters in furnace gall periphery 6, around the outer wall rotation of flue, travels forward, through flue gas even distribution device device, evenly enter high-temperature flue gas mixing chamber 24 and carry out flue-gas temperature adjusting (effect of circulating flue gas: cooling flue on the one hand, on the one hand for regulating the temperature of flue gas).
Mixed flue gas through regulating enters in heat exchanger tube 5 bodies with ventilation blower and sends into air outside heat exchanger tube 5 after Liu Ge flue gas backhaul chamber 4 heat temperature raisings, and temperature is sent from hot-blast outlet 21 after rising to design temperature, enters in follow-up drying equipment and coal mine.
The present invention is provided with five of inspection sockets.
Fuel of the present invention is diesel oil, natural gas, device in Gas, and the fuel such as town gas, applicable to sending hot blast to support the use with various drying equipments and Coal Mine down-hole.
The present invention can be as Fig. 1 folding installation up and down.Also can laterally install as Fig. 2 left and right.
Claims (3)
1. an indirect type fuel vapor hot blast boiler, comprise combustion chamber (9) and Heat Room (13), in combustion chamber (9), be provided with flue (10), in flue (10), be provided with burner (12), combustion chamber (9) is connected with Heat Room (13), in Heat Room (13), be provided with cold wind import (1), hot-blast outlet (6) and heat-exchange system, it is characterized in that: also comprise high-temperature flue gas mixing chamber (8), combustion chamber (9) is connected with high-temperature flue gas mixing chamber (8), and high-temperature flue gas mixing chamber (8) is connected with Heat Room (13); Described heat-exchange system comprises the first flue gas backhaul chamber (7) being connected with high-temperature flue gas mixing chamber (8), the first flue gas backhaul chamber (7) is connected by heat exchanger tube (5) successively with some flue gas backhaul chamber (4), last flue gas backhaul chamber (4) is connected with exhaust opening (2), exhaust opening (2) is provided with circulating flue gas interface (3), circulating flue gas interface (3) is connected with circulating flue gas pipe (11), and circulating flue gas pipe (11) is connected with high-temperature flue gas mixing chamber (8) again.
2. indirect type fuel vapor hot blast boiler according to claim 1, is characterized in that: described circulating flue gas pipe (11) is rotatably provided in flue (10) outside along the outer wall of flue (10).
3. indirect type fuel vapor hot blast boiler according to claim 1, is characterized in that: combustion chamber (9) and Heat Room (13) adopt Split type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310620078.9A CN103697587A (en) | 2013-11-29 | 2013-11-29 | Indirect fuel-gas hot-air boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310620078.9A CN103697587A (en) | 2013-11-29 | 2013-11-29 | Indirect fuel-gas hot-air boiler |
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| Publication Number | Publication Date |
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| CN103697587A true CN103697587A (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310620078.9A Pending CN103697587A (en) | 2013-11-29 | 2013-11-29 | Indirect fuel-gas hot-air boiler |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351958A (en) * | 2015-11-16 | 2016-02-24 | 华中科技大学 | Oxygen-enriched combustion system |
| CN105757977A (en) * | 2016-04-22 | 2016-07-13 | 铁岭鑫鹏机械厂 | Environment-friendly and energy-saving hot-blast furnace and use method thereof |
| CN105841348A (en) * | 2016-05-31 | 2016-08-10 | 贵州大学 | Adjustable combined heat exchanger air heating furnace and working method thereof |
| CN106679174A (en) * | 2016-12-29 | 2017-05-17 | 广州市祈雅典锅炉有限公司 | High-temperature hot blast stove |
| CN109210785A (en) * | 2018-10-21 | 2019-01-15 | 深圳智慧能源技术有限公司 | Utilize the pipeline gas heating system of flue gas |
| CN109269097A (en) * | 2018-10-21 | 2019-01-25 | 深圳智慧能源技术有限公司 | Pipeline gas heating system |
| CN109489250A (en) * | 2018-10-30 | 2019-03-19 | 葛永琴 | A kind of heat exchange type boiler convenient for high-efficiency heat conduction |
| CN111854160A (en) * | 2020-08-24 | 2020-10-30 | 榆林碳氢研究院股份有限公司 | Multifunctional methanol hot-blast stove using methanol fuel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092716U (en) * | 1991-01-04 | 1992-01-08 | 哈尔滨工业大学 | Horizontal hot-blast stove |
| US5490495A (en) * | 1994-04-14 | 1996-02-13 | Clean Burn, Inc. | Cleanout header for multi oil furnaces |
| CN101182957A (en) * | 2007-11-27 | 2008-05-21 | 袁长胜 | Air gas primary heater unit of hot-air stove |
| CN201138061Y (en) * | 2007-11-29 | 2008-10-22 | 聂玉强 | Direct heating type hot-air stove |
| CN201885386U (en) * | 2010-09-15 | 2011-06-29 | 长春吉大科学仪器设备有限公司 | Energy-saving air stove with rhombus-shaped pipe |
| CN202938611U (en) * | 2012-12-11 | 2013-05-15 | 刘波 | High-efficiency energy-saving environment-friendly vertical type hot-air stove |
| CN203642476U (en) * | 2013-11-29 | 2014-06-11 | 山西新聚星锅炉有限公司 | Indirect oil-fired or gas-fired hot blast stove |
-
2013
- 2013-11-29 CN CN201310620078.9A patent/CN103697587A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092716U (en) * | 1991-01-04 | 1992-01-08 | 哈尔滨工业大学 | Horizontal hot-blast stove |
| US5490495A (en) * | 1994-04-14 | 1996-02-13 | Clean Burn, Inc. | Cleanout header for multi oil furnaces |
| CN101182957A (en) * | 2007-11-27 | 2008-05-21 | 袁长胜 | Air gas primary heater unit of hot-air stove |
| CN201138061Y (en) * | 2007-11-29 | 2008-10-22 | 聂玉强 | Direct heating type hot-air stove |
| CN201885386U (en) * | 2010-09-15 | 2011-06-29 | 长春吉大科学仪器设备有限公司 | Energy-saving air stove with rhombus-shaped pipe |
| CN202938611U (en) * | 2012-12-11 | 2013-05-15 | 刘波 | High-efficiency energy-saving environment-friendly vertical type hot-air stove |
| CN203642476U (en) * | 2013-11-29 | 2014-06-11 | 山西新聚星锅炉有限公司 | Indirect oil-fired or gas-fired hot blast stove |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351958A (en) * | 2015-11-16 | 2016-02-24 | 华中科技大学 | Oxygen-enriched combustion system |
| CN105757977A (en) * | 2016-04-22 | 2016-07-13 | 铁岭鑫鹏机械厂 | Environment-friendly and energy-saving hot-blast furnace and use method thereof |
| CN105841348A (en) * | 2016-05-31 | 2016-08-10 | 贵州大学 | Adjustable combined heat exchanger air heating furnace and working method thereof |
| CN106679174A (en) * | 2016-12-29 | 2017-05-17 | 广州市祈雅典锅炉有限公司 | High-temperature hot blast stove |
| CN106679174B (en) * | 2016-12-29 | 2023-09-08 | 广东工业大学 | High-temperature hot-air furnace |
| CN109210785A (en) * | 2018-10-21 | 2019-01-15 | 深圳智慧能源技术有限公司 | Utilize the pipeline gas heating system of flue gas |
| CN109269097A (en) * | 2018-10-21 | 2019-01-25 | 深圳智慧能源技术有限公司 | Pipeline gas heating system |
| CN109269097B (en) * | 2018-10-21 | 2024-04-05 | 深圳智慧能源技术有限公司 | Pipeline gas heating system |
| CN109489250A (en) * | 2018-10-30 | 2019-03-19 | 葛永琴 | A kind of heat exchange type boiler convenient for high-efficiency heat conduction |
| CN111854160A (en) * | 2020-08-24 | 2020-10-30 | 榆林碳氢研究院股份有限公司 | Multifunctional methanol hot-blast stove using methanol fuel |
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Application publication date: 20140402 |
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