CN1945123A - Alcohol gasifying reforming burning system for industria furnace - Google Patents
Alcohol gasifying reforming burning system for industria furnace Download PDFInfo
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- CN1945123A CN1945123A CN 200610113305 CN200610113305A CN1945123A CN 1945123 A CN1945123 A CN 1945123A CN 200610113305 CN200610113305 CN 200610113305 CN 200610113305 A CN200610113305 A CN 200610113305A CN 1945123 A CN1945123 A CN 1945123A
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Abstract
The alcohol base fuel gasifying and reforming combustion system for industrial furnace belongs to the field of thermal system technology. The system includes alcohol base material tank, pump, flow meter, valve, electric heater, starting burner, afterheat gasifier, cracker and furnace burner connected successively via pipeline; induced fan connected to the furnace burner via afterheat gasifier and pipeline outside the air heater; and chimney connected to the induced fan through pipeline. The present invention has the fume afterheat best utilized to raise energy source utilizing rate, burns the alcohol base fuel after gasifying and/or cracking to raise energy level and reduce corrosion.
Description
Technical Field
The invention relates to an alcohol-based vaporization reforming combustion system for an industrial furnace, which is a novel combustion system for utilizing the waste heat of flue gas of the industrial furnace to achieve energy conservation and environmental protection and belongs to the technical field of thermal system devices.
Background
At present, alcohol-based fuels are widely used and researched due to the characteristics of oxygen self-contained fuel, low emission of combustion pollutants and the like, and the alcohol-based fuels are used for automobiles, civil stoves and the like, but are rarely used for industrial stoves. At present, most industrial furnaces mainly use diesel oil, heavy oil, liquefied petroleum gas or natural gas as fuel, the combustion cost is high, the pollutant emission is serious, and the alcohol-based synthetic fuel is a substitute fuel with a great development prospect. At present, alcohol-based fuel is directly used in a plurality of industries and is atomized and combusted, but the alcohol-based fuel has low calorific value, large latent heat of vaporization and corrosivity, and the direct combustion has the characteristics of unconventional alcohol aldehyde emission and the like; meanwhile, in a plurality of industrial furnaces, the whole thermotechnical system does not utilize the waste heat of tail flue gas, and the temperature of the tail flue gas of a common industrial furnace is higher than 300 ℃, so that the heat is greatly wasted.
Therefore, based on the reasons of the defects of a thermal system and serious pollution emission, the market demand and the defects of the combustion of direct alcohol-based synthetic fuel, the alcohol-based synthetic fuel is vaporized or cracked by utilizing the waste heat of tail flue gas to clean the alcohol-based synthetic fuel, and an indirect combustion system utilizing the vaporization latent heat of the alcohol-based fuel is provided, and the application of the alcohol-based synthetic fuel in an industrial furnace is promoted on a large scale.
The tail flue gas waste heat gasified alcohol-based synthetic fuel indirect combustion method has the characteristics that:
1. the alcohol-based synthetic fuel is heated, vaporized or gasified and cracked by using the waste heat of the industrial furnace tail gas or the heat of the internal combustion engine tail gas, and the latent heat of vaporization of the alcohol-based synthetic fuel is used, so that the chemical energy of the fuel is improved;
2. the alcohol-based fuel is gasified and combusted, so that the combustion stability and the combustion environmental protection performance are improved, the combustion corrosivity of the alcohol-based synthetic fuel is improved, and the emission of unconventional aldol is effectively inhibited;
disclosure of Invention
The invention aims to efficiently utilize alcohol-based synthetic fuel, utilize the waste heat of flue gas and reduce the heat loss of flue gas, thereby improving the energy utilization rate; the alcohol-based fuel contains oxygen and is clean, and the carbon smoke root and the nitrogen oxide NO discharged by combustionXLess, and meets the requirements of energy conservation and environmental protection.
The invention provides an alcohol-based synthetic fuel combustion system for an industrial furnace, which solves the problem of environmental pollution caused by fuels such as coal, oil and the like in the existing industrial furnace and promotes the use of an indirect combustion mode of alcohol-based synthetic fuel.
An alcohol-based synthetic fuel combustion system for an industrial furnace comprises an alcohol-based raw material tank (5), a No. 2 pump (6), a flow meter (7), an electric heater (8), a starting burner (9), a waste heat vaporizer (10), a kiln burner (20), an air heater (15), an air blower (17), an induced draft fan (18), a chimney (19) and an induced draft fan;
the alcohol-based raw material tank (5), the No. 2 pump (6) and the flow meter (7) are sequentially connected through pipelines, the flow meter (7) is connected with the electric heater (8) through a pipeline with a valve, the electric heater (8), the starting burner (9), the waste heat vaporizer (10), the cracker (11) and the kiln burner (20) are sequentially connected through pipelines, and the kiln burner (20) is connected with the induced draft fan (18) through pipelines in the waste heat vaporizer (10) and the air heater (15); the induced draft fan (18) is connected with the chimney (19) through a pipeline;
the flow meter (7) is directly connected with the waste heat vaporizer (10) through another pipeline witha valve;
the waste heat vaporizer (10) is connected with a cooler (22) and a recovery tank (23) through a pipeline with a safety valve (14);
the blower (17), the air heater (15) and the kiln burner (20) are sequentially connected through a pipeline;
the kiln burner (20) is connected with a chimney (19) through another induced draft fan (21).
And a pressure gauge and a thermometer are installed on the waste heat gasifier (10).
A thermometer (16) is arranged in the air heater (15).
The invention adds a set of alcohol-based synthetic fuel vaporizing or gasifying cracking system at the tail part of the flue gas, and utilizes the waste heat of the flue gas to vaporize or gasify and crack the alcohol-based synthetic fuel for combustion, belonging to a mode of indirectly using the alcohol-based synthetic fuel, improving the energy utilization rate, and avoiding the problems of low heat value, unconventional alcohol aldehyde emission, corrosivity and the like of directly using the alcohol-based fuel. The chemical equation for the combustion of the alcohol-based synthetic fuel in the whole system is (taking methanol fuel as an example):
the system firstly vaporizes the liquid fuel into gas, and directly combusts the vaporized alcohol-based gas fuel; or the alcohol-based fuel is changed into the synthetic gas through catalytic cracking of the catalyst and then is combusted.
The whole process of continuous feeding and gasification of the system comprises the following steps: raw oil is used by an oil truck (1), stored in a bottom product oil raw material tank (2), sent to an alcohol-based raw material tank (5) with a flow meter (7) by a 1# pump (4) through a filter (3), the amount of the imported alcohol-based fuel is controlled by a float flowmeter, and sent to a gasification device by a 2# pump (6), and when the gasification device is started, the bypass electric starting device comprises an electric heater (8) and a starting burner (9); after the start-up is finished, when the device normally operates, the bypass is closed, the smoke waste heat is utilized to heat and vaporize or gasify the cracked alcohol-based synthetic fuel, the synthetic fuel is vaporized by the waste heat gasifier (10) or vaporized by the waste heat gasifier (10), the synthetic gas after gasification and cracking by the cracker (11) is sent into the industrial kiln (20) through a main gas pipeline for combustion, one part of smoke generated after combustion is directly discharged from a chimney (19) through an induced draft fan (21), the other part of smoke generated after combustion is sent into a pipeline of the waste heat gasifier (10) through smoke recirculation and is subjected to convection heat exchange through a pipe wall, heat is transferred to the alcohol-based synthetic fuel, the smoke cooled through heat exchange of the waste heat gasifier (10) further takes away residual heat in the smoke through heat exchange of an air heater (15), and is led out by the induced draft fan (18) and discharged from the. The air heater (15) is used for heating air to supply to the industrial furnace for combustion, and improves the temperature of inlet air, thereby improving the combustion efficiency. The waste heat gasifier (10) is provided with a pressure gauge, a thermometer (12), a safety valve (14) and a cooler (21) and a recovery tank (22) which are connected at the bottom. The stable and continuous operation of the process system can be realized by adjusting the flow of the flue gas and the flow of the inlet alcohol-based synthetic fuel to meet the change of the load.
According to the technical scheme, the device mainly comprises an alcohol-based feeding device, a waste heat vaporization or gasification cracking device and an electric starting control device; in the system, the alcohol-based fuel can be vaporized and cracked at the same time, or a cracker is not added, and the alcohol-based fuel is vaporized and then is reused.
The invention has the advantages that:
1. the waste heat at the tail part of the flue gas is fully utilized, the energy utilization efficiency is improved, the heat loss of the flue gas is reduced, and the aim of saving energy is fulfilled;
2. the industrial furnace utilizes alcohol-based synthetic fuel to replace fuels such as diesel oil, heavy oil and the like, reduces the emission of combustion pollutants and meets the requirement of environmental protection;
3. the alcohol-based synthetic fuel is combusted after vaporization or vaporization cracking, so that the problems of low energy level, reduced corrosivity and low heat value of direct combustion of the liquid alcohol-based synthetic fuel and the like due to too low heat value of the alcohol group are avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
FIG. 2 is a schematic diagram of a combustion system for alcohol-based synthetic fuel vaporized by waste heat of an industrial ceramic kiln.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the present invention. In the figure: 1. the system comprises an oil truck, 2 a finished oil raw material tank, 3 a filter, 4.1# pump, 5 an alcohol-based raw material tank, 6.2# pump, 7 a flow meter, 8 an electric heater, 9 a starting burner, 10 a waste heat gasifier, 11 a cracker, 12 a thermometer and a pressure gauge, 13 waste heat flue gas, 14 a safety valve, 15 an air heater, 16 a thermometer, 17 a blower, 18 an induced draft fan, 19 a chimney, 20 a kiln burner, 21 an induced draft fan, 22 a cooler and 23 a recovery tank. As shown in figure 1, the alcohol-based synthetic fuel combustion system for the industrial furnace is characterized by comprising an alcohol-based raw material tank (5), a 2# pump (6), a flow meter (7), an electric heater (8), a starting burner (9), a waste heat vaporizer (10), a kiln burner (20), an air heater (15), an air blower (17), an induced draft fan (18), a chimney (19) and an induced draft fan; the alcohol-based raw material tank (5), the No. 2 pump (6) and the flow meter (7) are sequentially connected through pipelines, the flow meter (7) is connected with the electric heater (8) through a pipeline with a valve, the electric heater (8), the starting burner (9), the waste heat vaporizer (10) and the kiln burner (20) are sequentially connected through pipelines, and the kiln burner (20) is connected with the induced draft fan (18) through pipelines of the waste heat vaporizer (10) and the air heater (15); the induced draft fan (18) is connected with the chimney (19) through a pipeline; the flow meter (7) is directly connected with the waste heat vaporizer (10) through another pipeline with a valve; the blower (17), the air heater (15) and the kiln burner (20) are sequentially connected through a pipeline; the kiln burner (20) is connected with a chimney (19) through an induced draft fan (21). Referring to the attached figure 1, raw oil is transported by an oil truck (1), stored in a bottom product oil raw material tank (2), sent to an alcohol-based raw material tank (5) with a flow meter (7) by a No. 1 pump (4) through a filter (3), the fuel quantityof the inlet alcohol group fuel is controlled by a float flowmeter, the alcohol group fuel is sent to a gasification device by a No. 2 pump (6), a bypass electric starting device during starting is composed of an electric heater (8) and a starting burner (9), when the device is in normal operation, the bypass is closed, the waste heat of the flue gas is utilized to heat and vaporize or gasify the cracked alcohol-based synthetic fuel, the synthetic gas gasified by the waste heat gasifier (10) or gasified and cracked by the cracker (11) is sent into the industrial kiln (20) through a main gas pipeline for combustion, one part of the flue gas generated after combustion is directly discharged from a chimney (19) through an induced draft fan (21), and the other part of the flue gas is sent into the waste heat gasifier for use through flue gas recirculation; the residual heat in the flue gas is further taken away by the flue gas subjected to heat exchange and temperature reduction through the waste heat gasifier (10) through the air heater (15), and then the flue gas is led out by the induced draft fan (18) and discharged through the chimney (19). Air which passes through the air heater (15) by the blower (17) is preheated and sent into the kiln for combustion supporting. Meanwhile, a pressure gauge, a thermometer (12) and a safety valve (14) are arranged on the waste heat gasifier (10), and the bottom of the waste heat gasifier is connected with a cooler (21) and a recovery tank (22), so that redundant synthetic gas can be recovered conveniently, and the safety of the system is ensured.
FIG. 2 is a schematic diagram of a combustion system for alcohol-based synthetic fuel vaporized by waste heat of an industrial ceramic kiln. Namely the invention is particularly applied to the industrial ceramic kiln. In the figure: 8, an electric heater, 9, a starting burner, 10, a waste heat gasifier, 11, a cracker, 18, an induced draft fan, 20, a kiln burner and 24, a flue gas waste heat utilizationsystem. The '8 + 9' and '10 + 11' are respectively the electric heater, the starting burner and the waste heat gasifier, the electric heater and the starting burner are connected together, and the waste heat gasifier and the cracker are connected together; as shown in fig. 2, when the alcohol-based raw material is first started from the alcohol-based raw material tank (5), the alcohol-based raw material is sent to the waste heat gasifier (10) through the electric heater (8) and the start-up burner (9), and after the whole system is started; closing the pipeline, directly conveying the alcohol-based raw material from the alcohol-based raw material tank (5) to a waste heat gasifier (10), gasifying the alcohol-based raw material by waste heat or gasifying and cracking the alcohol-based raw material by a cracker (11), and then conveying the alcohol-based raw material to a kiln burner (20) (which can be a plurality of groups) for combustion; one part of the flue gas after combustion is guided into a chimney by an induced draft fan, and the other part of the flue gas is guided into the chimney by the induced draft fan (18) through pipelines of a waste heat gasifier (10), a hot air blower and the like; the blower and the hot air blower input air to the kiln burner (20).
The invention fully utilizes the waste heat at the tail part of the flue gas, improves the energy utilization efficiency, reduces the heat loss of the flue gas and realizes the purpose of energy conservation; the alcohol-based synthetic fuel is combusted after vaporization or vaporization cracking, so that the problems of low energy level, reduced corrosivity and low heat value of direct combustion of the liquid alcohol-based synthetic fuel and the like due to too low heat value of the alcohol group are avoided.
Claims (5)
1. The alcohol-based synthetic fuel combustion system for theindustrial furnace is characterized by comprising an alcohol-based raw material tank (5), a No. 2 pump (6), a flow meter (7), an electric heater (8), a starting burner (9), a waste heat vaporizer (10), a kiln burner (20), an air heater (15), an air blower (17), an induced draft fan (18), a chimney (19) and an induced draft fan;
the alcohol-based raw material tank (5), the No. 2 pump (6) and the flow meter (7) are sequentially connected through pipelines, the flow meter (7) is connected with the electric heater (8) through a pipeline with a valve, the electric heater (8), the starting burner (9), the waste heat vaporizer (10) and the kiln burner (20) are sequentially connected through pipelines, and the kiln burner (20) is connected with the induced draft fan (18) through pipelines of the waste heat vaporizer (10) and the air heater (15); the induced draft fan (18) is connected with the chimney (19) through a pipeline;
the flow meter (7) is directly connected with the waste heat vaporizer (10) through another pipeline with a valve;
the blower (17), the air heater (15) and the kiln burner (20) are sequentially connected through a pipeline;
the kiln burner (20) is connected with a chimney (19) through another induced draft fan (21).
2. An alcohol-based synthetic fuel combustion system for an industrial furnace is characterized in that a cracker (11) is arranged between an exhaust vaporizer (10) and a kiln burner (20) of the alcohol-based synthetic fuel combustion system.
3. An alcohol based synthetic fuel combustion system for industrial furnace according to claim 1 or 2 characterized in that the waste heat vaporizer (10) is connected with a cooler (22) and a recovery tank (23) through a pipe with a safety valve (14).
4. The alcohol-based synthetic fuel combustion system for industrial furnace as claimed in claim 1 or 2, characterized in that the waste heat gasifier (10) is equipped with a pressure gauge and a temperature gauge.
5. The alcohol-based synthetic fuel combustion system for industrial furnace according to claim 1 or 2, characterized in that a temperature gauge (16) is installed in the heat gun (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101133059A CN100552299C (en) | 2006-09-22 | 2006-09-22 | A kind of alcohol gasifying reforming burning system that is used for industrial furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101133059A CN100552299C (en) | 2006-09-22 | 2006-09-22 | A kind of alcohol gasifying reforming burning system that is used for industrial furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1945123A true CN1945123A (en) | 2007-04-11 |
| CN100552299C CN100552299C (en) | 2009-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101133059A Expired - Fee Related CN100552299C (en) | 2006-09-22 | 2006-09-22 | A kind of alcohol gasifying reforming burning system that is used for industrial furnace |
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| CN (1) | CN100552299C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323431B (en) * | 2008-07-09 | 2010-08-11 | 王衍衡 | Method and apparatus system for converting methanol into hydrogen fuel by using industrial furnace residual heat |
| CN101871731A (en) * | 2010-06-02 | 2010-10-27 | 昆明理工大学 | Large-scale industrial combustion method of dimethyl ether |
| CN103420337A (en) * | 2013-09-05 | 2013-12-04 | 山东乾鑫环保科技有限公司 | Method and device for preparing boiler hydrogen through methanol steam reforming |
| CN104033897A (en) * | 2014-05-30 | 2014-09-10 | 葛士群 | High-temperature pyrolysis combustor |
| CN106016338A (en) * | 2016-05-20 | 2016-10-12 | 昆明理工大学 | Secondary-atomizing oxy-fuel combustion method of burning oil of biomass |
| CN106439803A (en) * | 2016-10-28 | 2017-02-22 | 秦皇岛轻烃能源有限公司 | Liquid light hydrocarbon fuel gasification and combustion system |
| CN112047300A (en) * | 2020-08-18 | 2020-12-08 | 广东醇氢新能源研究院有限公司 | Alcohol cracking gas combustion heating method and device for kiln |
-
2006
- 2006-09-22 CN CNB2006101133059A patent/CN100552299C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323431B (en) * | 2008-07-09 | 2010-08-11 | 王衍衡 | Method and apparatus system for converting methanol into hydrogen fuel by using industrial furnace residual heat |
| CN101871731A (en) * | 2010-06-02 | 2010-10-27 | 昆明理工大学 | Large-scale industrial combustion method of dimethyl ether |
| CN103420337A (en) * | 2013-09-05 | 2013-12-04 | 山东乾鑫环保科技有限公司 | Method and device for preparing boiler hydrogen through methanol steam reforming |
| CN103420337B (en) * | 2013-09-05 | 2015-09-09 | 山东乾鑫环保节能科技股份有限公司 | A kind of methanol steam reforming prepares the method for boiler hydrogen |
| CN104033897A (en) * | 2014-05-30 | 2014-09-10 | 葛士群 | High-temperature pyrolysis combustor |
| CN106016338A (en) * | 2016-05-20 | 2016-10-12 | 昆明理工大学 | Secondary-atomizing oxy-fuel combustion method of burning oil of biomass |
| CN106439803A (en) * | 2016-10-28 | 2017-02-22 | 秦皇岛轻烃能源有限公司 | Liquid light hydrocarbon fuel gasification and combustion system |
| CN112047300A (en) * | 2020-08-18 | 2020-12-08 | 广东醇氢新能源研究院有限公司 | Alcohol cracking gas combustion heating method and device for kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100552299C (en) | 2009-10-21 |
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