CN203642476U - Indirect oil-fired or gas-fired hot blast stove - Google Patents

Indirect oil-fired or gas-fired hot blast stove Download PDF

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Publication number
CN203642476U
CN203642476U CN201320767836.5U CN201320767836U CN203642476U CN 203642476 U CN203642476 U CN 203642476U CN 201320767836 U CN201320767836 U CN 201320767836U CN 203642476 U CN203642476 U CN 203642476U
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CN
China
Prior art keywords
flue gas
chamber
fume
fired
temperature
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Expired - Lifetime
Application number
CN201320767836.5U
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Chinese (zh)
Inventor
裴卫昶
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SHANXI XINJUXING BOILER CO Ltd
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SHANXI XINJUXING BOILER CO Ltd
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Priority to CN201320767836.5U priority Critical patent/CN203642476U/en
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Publication of CN203642476U publication Critical patent/CN203642476U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model relates to a hot blast stove, in particular to an indirect oil-fired or gas-fired hot blast stove, which solves the problem that the oil-fired or gas-fired hot blast stove is high in operation cost, low in energy efficiency, instable in outgoing air temperature and high in maintenance rate. The indirect oil-fired or gas-fired hot blast stove comprises a combustion chamber and a heat exchange chamber; a furnace lining is arranged in the combustion chamber; a burner is arranged in the furnace lining; the combustion chamber is connected with the heat exchange chamber; a cold air inlet, a hot air outlet and a heat exchange system are arranged in the heat exchange chamber. The indirect oil-fired or gas-fired hot blast stove further comprises a high-temperature fume mixing chamber, the high-temperature fume mixing chamber is connected with the combustion chamber and the heat exchange chamber; the heat exchange system comprises first fume return chambers connected with the high-temperature fume mixing chamber, the first fume return chambers are sequentially connected with the plurality of fume return chambers via heat exchange pipes; the last fume return chamber is connected with the fume outlet; a circulating fume connector is arranged at the fume outlet; the circulating fume connector is connected with a circulating fume pipe; the circulating fume pipe is further connected with the high-temperature fume mixing chamber.

Description

Indirect type fuel vapor hot blast boiler
Technical field
The utility model 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 utility model 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 utility model is taked 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 the low-temperature flue gas (approximately 120 DEG C 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 DEG C 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, point 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 utlity model 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, the temperature that makes full use of the useless flue gas participation of afterbody flue gas regulates, and has protected heat exchanger on the one hand, has saved again on the other hand a large amount of energy.The fuel such as town gas, can be suitable for various drying equipments are supporting.
Brief description of the drawings
Fig. 1 is one of the utility model scheme of installation;
Fig. 2 is two of the utility model scheme of installation;
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.
Detailed description of the invention
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 out enters high-temperature flue gas mixing chamber 8 from combustion chamber 9, and the low-temperature circulating flue gas (approximately 120 DEG C 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 DEG C 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 DEG C of left and right, divide two-way, one tunnel enters chimney through smoke exhaust fan, one tunnel, through circulating flue gas interface, tangentially enters in furnace gall periphery 6 along the periphery of flue 10, travels forward around the outer wall rotation of flue, evenly enter high-temperature flue gas mixing chamber 24 through flue gas even distribution device device and carry out flue-gas temperature adjusting (effect of circulating flue gas: on the one hand cooling flue, on the one hand for regulating the temperature of flue gas).
Through sending into air outside heat exchanger tube 5 after six flue gas backhaul chamber 4 heat temperature raisings with ventilation blower in the mixed flue gas regulating enters heat exchanger tube 5 bodies, temperature is sent from hot-blast outlet 21 after rising to design temperature, enters in follow-up drying equipment and coal mine.
The utility model is provided with five of inspection sockets.
The utility model fuel 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 utility model 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.
CN201320767836.5U 2013-11-29 2013-11-29 Indirect oil-fired or gas-fired hot blast stove Expired - Lifetime CN203642476U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320767836.5U CN203642476U (en) 2013-11-29 2013-11-29 Indirect oil-fired or gas-fired hot blast stove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320767836.5U CN203642476U (en) 2013-11-29 2013-11-29 Indirect oil-fired or gas-fired hot blast stove

Publications (1)

Publication Number Publication Date
CN203642476U true CN203642476U (en) 2014-06-11

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CN201320767836.5U Expired - Lifetime CN203642476U (en) 2013-11-29 2013-11-29 Indirect oil-fired or gas-fired hot blast stove

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103697587A (en) * 2013-11-29 2014-04-02 山西新聚星锅炉有限公司 Indirect fuel-gas hot-air boiler
CN104359220A (en) * 2014-11-07 2015-02-18 重庆汇田机械制造有限公司 Silkworm cocoon curing barn heating system
CN104566957A (en) * 2014-12-30 2015-04-29 南京宜热纵联节能科技有限公司 System device for supplying high-temperature clean hot air
CN109290150A (en) * 2018-11-13 2019-02-01 江苏大族展宇新能源科技有限公司 A kind of lithium battery coating machine heating structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103697587A (en) * 2013-11-29 2014-04-02 山西新聚星锅炉有限公司 Indirect fuel-gas hot-air boiler
CN104359220A (en) * 2014-11-07 2015-02-18 重庆汇田机械制造有限公司 Silkworm cocoon curing barn heating system
CN104566957A (en) * 2014-12-30 2015-04-29 南京宜热纵联节能科技有限公司 System device for supplying high-temperature clean hot air
CN104566957B (en) * 2014-12-30 2017-03-29 南京宜热纵联节能科技有限公司 A kind of system and device that high temperature cleaning hot blast is provided
CN109290150A (en) * 2018-11-13 2019-02-01 江苏大族展宇新能源科技有限公司 A kind of lithium battery coating machine heating structure

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Granted publication date: 20140611