CN101324399B - Drying room waste gases incineration flue gas heating system with adjustable heat supply - Google Patents
Drying room waste gases incineration flue gas heating system with adjustable heat supply Download PDFInfo
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- CN101324399B CN101324399B CN2007100557566A CN200710055756A CN101324399B CN 101324399 B CN101324399 B CN 101324399B CN 2007100557566 A CN2007100557566 A CN 2007100557566A CN 200710055756 A CN200710055756 A CN 200710055756A CN 101324399 B CN101324399 B CN 101324399B
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Abstract
The invention relates to a waste gas incinerator gas heat supply system for an oven drying chamber with adjustable heat supply capacity, which is characterized in that a bypass adjusting air duct, a waste gas adjusting valve and a waste gas bypass adjusting valve are arranged on an air outlet of a blower for supply air to a waste gas incinerator to form a waste gas supply adjusting unit; a bypass adjusting air duct, a fresh air adjusting valve and a fresh air bypass adjusting valve are arranged on the air outlet of a blower for replenishing fresh air to form a fresh air supply adjusting unit; and a gas discharge temperature detection element is arranged on a gas exhaust hole. The system has the advantages that the waste gas treatment meets the requirement for environment protection, the equipment has low operation cost, and the gas discharge temperature is controllable, and the system can save energy and protect environment.
Description
Technical field:
What the present invention relates to is the adjustable drying room waste gases incineration flue gas heating system of a kind of heating load, relate to a kind ofly utilize heat that vehicle furnace drying chamber circulating air particularly produces flue gas in the burned waste gas processing procedure, belong to oven dry heat supply process field for drying chamber provides the heating system of thermal source.
Background technology:
At present, the flue gas heat of utilizing drying room waste gases (circulating air) burning to produce provides the heating system of thermal source for drying chamber, its exhaust gas volumn is changeless, and the environmental requirement burned waste gas is handled will reach certain temperature, so the heat that this system's flue gas provides is also fixed.Heating load can not change according to the actual needs of drying chamber, in the time of promptly can not reducing according to output, in time adjusts exhaust gas temperature and raises, and causes energy waste.
Present domestic newly-built paint line, often much smaller than design output, drying chamber actual consumption heat is little for the initial stage actual production of going into operation, and uses the fixing flue gas heating system of heating load, and energy waste is not serious before equipment reaches design output.For example, split run is produced 50000 vehicle body drying plant thermal losses per year and is about 2000kW, the operation initial stage since actual production much smaller than design output, evenly heat consumption is about 800-1200kW in 1 year of going into operation.Nearly have the energy of half be discharged in the atmosphere and slattern, and high temperature discharge causes serious pollution to air ambient.
Summary of the invention:
The object of the present invention is to provide the adjustable drying room waste gases incineration flue gas heating system of a kind of heating load, it is by detecting the terminal smog discharge temperature of heating system, automatically regulate the fresh wind magnitude of recruitment of sending into the return air quantity in the waste gas combustion furnace and matching, reach and satisfy the drying chamber heat request, the control smog discharge temperature, the theory that keeps circulated air balance in the drying chamber, the purpose of realization energy savings.
Technical scheme of the present invention is achieved in that the drying room waste gases incineration flue gas heating system that heating load is adjustable, by supplying exhaust gas fan, waste gas combustion furnace, smoke heat replacing device, the flue gas heat exchange control valve, the flue gas heat exchange smoke regulating valve, for new wind blower fan, the new air heat-exchange device, the new air heat-exchange control valve, the new air heat-exchange smoke regulating valve, new wind control valve, new wind bypass regulator valve, the drying chamber detector unit, new wind-warm syndrome degree detecting element, the heat supply electric control system is formed, it is characterized in that: be provided with waste gas adjusting airduct at the exhaust gas fan air outlet that supplies to the waste gas combustion furnace air feed, described waste gas is regulated airduct and is provided with bypass waste gas adjusting airduct, described bypass waste gas is regulated airduct and is provided with the exhaust gas bypass control valve, described waste gas is regulated airduct and is provided with waste gas regulating valve, described waste gas is regulated airduct, waste gas regulating valve, bypass waste gas regulates airduct and the exhaust gas bypass control valve is formed for the waste gas regulon, the described waste gas regulon that supplies is connected with waste gas combustion furnace, regulate the amount that the waste gas combustion furnace cycle gas is sent in control by this confession waste gas regulon, make the heating system heating load adjustable; New wind adjusting airduct is being set for new wind fan outlet, described new wind is regulated airduct and is provided with the new wind adjusting of bypass airduct, the new wind of bypass is regulated airduct and is provided with new wind bypass regulator valve, new wind is regulated airduct and is provided with new wind control valve, regulating airduct, new wind control valve, the new wind adjusting airduct of bypass and new wind bypass regulator valve by new wind forms for new wind regulon, the resh air requirement that replenishes to drying chamber according to the variation adjusted in concert that is sent to the incinerator return air quantity, thus the pressure balance of drying chamber circulated air guaranteed; Be connected with new air heat-exchange control valve and new air heat-exchange smoke regulating valve on the flue gas pipeline of new air heat-exchange device, by being connected of the new wind regulon of described confession and new air heat-exchange device, new wind is realized in the new air heat-exchange device and the heat exchange of flue gas; At the fume emission mouth smog discharge temperature detecting element is set, sends the instruction adjusting by this detector unit and send into exhausted air quantity.
Described smoke heat replacing device is 3-6.
The course of work is finished according to the following steps: the circulating fan, the startup that 1. at first start smoke heat replacing device supply new wind blower fan for exhaust gas fan, startup, at this moment, waste gas regulating valve, flue gas heat exchange control valve, new wind control valve, new air heat-exchange control valve are in full-gear, and exhaust gas bypass control valve, flue gas heat exchange smoke regulating valve, new wind bypass regulator valve, new air heat-exchange smoke regulating valve are in the complete shut-down state; 2. start the burning unit of waste gas combustion furnace, it is 750 ℃ that unit is controlled the furnace chamber temperature automatically, and drying chamber detector unit, new wind-warm syndrome degree detecting element, smog discharge temperature detecting element enter automatic detection monitor state simultaneously; 3. set the operating temperature height in limited time when the oven dry room air reaches, the heat supply electric control system is sent conditioning signal and is closed little flue gas heat exchange control valve, opens big flue gas heat exchange smoke regulating valve; When the oven dry room air was lower than setting operating temperature lower bound, the heat supply electric control system was sent conditioning signal and is driven big flue gas heat exchange control valve; Turn down the flue gas heat exchange smoke regulating valve; 4. when heat that the heating load of heating system needs greater than drying chamber, the heat supply electric control system is sent the aperture that above-mentioned all kinds of valves are regulated in instruction, guarantees that the temperature of drying chamber is controlled in the operating temperature range, makes the exhaust temperature of flue gas constantly raise; The exhaust temperature of flue gas is controlled in 160-180 ℃; Surpass 180 ℃ when detecting system's exhaust gas temperature, the heat supply electric control system is sent instruction and is turned down waste gas regulating valve, new wind control valve; Open big exhaust gas bypass control valve, new wind bypass regulator valve, reduce exhaust gas volumn gradually, reduce exhaust gas temperature; After exhaust gas temperature was lower than 180 ℃, above-mentioned each control valve all was in the dynamic adjustments state, and exhaust gas temperature is stabilized in 180 ℃; When 5. the heat that needs when drying chamber increased, the heat supply electric control system was at first sent instruction, progressively the new air heat-exchange control valve is reached maximum; The new air heat-exchange smoke regulating valve is in closed condition, if the new wind-warm syndrome degree that replenishes to drying chamber under this state still is lower than design temperature, then heat supply electric control system is sent instruction again, drives big waste gas regulating valve, new wind control valve; Turn down exhaust gas bypass control valve, new wind bypass regulator valve, make the new wind-warm syndrome degree that replenishes to drying chamber reach design temperature, realize the temperature dynamic balance again.
The invention has the beneficial effects as follows: exhaust-gas treatment satisfies environmental requirement, equipment operating cost is low, smog discharge temperature is controlled, energy-conserving and environment-protective.
Description of drawings:
Fig. 1 is a fundamental diagram of the present invention;
The specific embodiment:
The present invention will be further described below in conjunction with drawings and Examples:
Embodiment 1:
The drying room waste gases incineration flue gas heating system that heating load is adjustable, by supplying exhaust gas fan 1, waste gas combustion furnace 4, smoke heat replacing device 5, flue gas heat exchange control valve 6, flue gas heat exchange smoke regulating valve 7, for new wind blower fan 8, new air heat-exchange device 9, new air heat-exchange control valve 10, new air heat-exchange smoke regulating valve 11, new wind control valve 12, new wind bypass regulator valve 13, drying chamber detector unit 14, new wind-warm syndrome degree detecting element 15, the heat supply electric control system is formed, it is characterized in that: be provided with waste gas adjusting airduct at exhaust gas fan 1 air outlet that supplies to the waste gas combustion furnace air feed, described waste gas is regulated airduct and is provided with bypass waste gas adjusting airduct, described bypass waste gas is regulated airduct and is provided with exhaust gas bypass control valve 3, described waste gas is regulated airduct and is provided with waste gas regulating valve 2, described waste gas is regulated airduct, waste gas regulating valve 2, bypass waste gas regulates airduct and exhaust gas bypass control valve 3 is formed for the waste gas regulon, the described waste gas regulon that supplies is connected with waste gas combustion furnace 4, regulate the amount that waste gas combustion furnace 4 cycle gas are sent in control by this confession waste gas regulon, make the heating system heating load adjustable; New wind adjusting airduct is being set for new wind blower fan 8 air outlets, described new wind is regulated airduct and is provided with the new wind adjusting of bypass airduct, the new wind of bypass is regulated airduct and is provided with new wind bypass regulator valve 13, new wind is regulated airduct and is provided with new wind control valve 12, regulating airduct, new wind control valve 12, the new wind adjusting airduct of bypass and new wind bypass regulator valve 13 by new wind forms for new wind regulon, the resh air requirement that replenishes to drying chamber according to the variation adjusted in concert that is sent to the incinerator return air quantity, thus the pressure balance of drying chamber circulated air guaranteed; Be connected with new air heat-exchange control valve 10 and new air heat-exchange smoke regulating valve 11 on the flue gas pipeline of new air heat-exchange device 9, by being connected of the new wind regulon of described confession and new air heat-exchange device 9, new wind is realized in new air heat-exchange device 9 and the heat exchange of flue gas; At the fume emission mouth smog discharge temperature detecting element 17 is set, sends the instruction adjusting by this detector unit and send into exhausted air quantity.
Described smoke heat replacing device 5 is 3-6.
This heating system startup and heating load adjustment process are as follows: the circulating fan, the startup that at first start smoke heat replacing device 5 supply new wind blower fan 8 for exhaust gas fan 1, startup, at this moment, waste gas regulating valve 2, flue gas heat exchange control valve 6, new wind control valve 12, new air heat-exchange control valve 10 are in full-gear, and exhaust gas bypass control valve 3, flue gas heat exchange smoke regulating valve 7, new wind bypass regulator valve 13, new air heat-exchange smoke regulating valve 11 are in the complete shut-down state; Start the burning unit of waste gas combustion furnace 4, it is 750 ℃ that unit is controlled the furnace chamber temperature automatically, and drying chamber detector unit 14, new wind-warm syndrome degree detecting element 15, smog discharge temperature detecting element 16,17 enter automatic detection monitor state simultaneously;
Set the operating temperature height in limited time when the oven dry room air reaches, the heat supply electric control system is sent conditioning signal and is closed little flue gas heat exchange control valve 6, opens big flue gas heat exchange smoke regulating valve 7; When the oven dry room air was lower than setting operating temperature lower bound, the heat supply electric control system was sent conditioning signal and is driven big flue gas heat exchange control valve 6; Turn down flue gas heat exchange smoke regulating valve 7; Entire work process, more than each control valve be in the dynamic adjustments state, thereby guarantee that each functional section temperature changes in the operating temperature range of setting.
Embodiment 2:
When heat that the heating load of heating system needs greater than drying chamber, the heat supply electric control system is sent the aperture that above-mentioned all kinds of valves are regulated in instruction, guarantees that the temperature of drying chamber is controlled in the operating temperature range, makes the exhaust temperature of flue gas constantly raise; The exhaust temperature of flue gas is controlled in 160-180 ℃; Surpass 180 ℃ when detecting system's exhaust gas temperature, the heat supply electric control system is sent instruction and is turned down waste gas regulating valve 2, new wind control valve 12; Open big exhaust gas bypass control valve 3, new wind bypass regulator valve 13, reduce exhaust gas volumn gradually, reduce exhaust gas temperature; After exhaust gas temperature was lower than 180 ℃, above-mentioned each control valve all was in the dynamic adjustments state, and exhaust gas temperature is stabilized in 180 ℃.
Embodiment 3:
When the heat of drying chamber needs increases (maximum is increased to the heat of designing requirement), the heat supply electric control system is at first sent instruction, progressively new air heat-exchange control valve 10 is reached maximum; New air heat-exchange smoke regulating valve 11 is in closed condition.If the new wind-warm syndrome degree that replenishes to drying chamber under this state still is lower than design temperature, then heat supply electric control system is sent instruction again, drives big waste gas regulating valve 2, new wind control valve 12; Turn down exhaust gas bypass control valve 3, new wind bypass regulator valve 13.Make the new wind-warm syndrome degree that replenishes to drying chamber reach design temperature, realize the temperature dynamic balance again.
Claims (3)
1. the adjustable drying room waste gases incineration flue gas heating system of heating load, by supplying exhaust gas fan (1), waste gas combustion furnace (4), smoke heat replacing device (5), flue gas heat exchange control valve (6), flue gas heat exchange smoke regulating valve (7), for new wind blower fan (8), new air heat-exchange device (9), new air heat-exchange control valve (10), new air heat-exchange smoke regulating valve (11), new wind control valve (12), new wind bypass regulator valve (13), drying chamber detector unit (14), new wind-warm syndrome degree detecting element (15), the heat supply electric control system is formed, it is characterized in that: be provided with waste gas adjusting airduct at exhaust gas fan (1) air outlet that supplies to the waste gas combustion furnace air feed, described waste gas is regulated airduct and is provided with bypass waste gas adjusting airduct, described bypass waste gas is regulated airduct and is provided with exhaust gas bypass control valve (3), described waste gas is regulated airduct and is provided with waste gas regulating valve (2), described waste gas is regulated airduct, waste gas regulating valve (2), bypass waste gas regulates airduct and exhaust gas bypass control valve (3) is formed for the waste gas regulon, the described waste gas regulon that supplies is connected with waste gas combustion furnace (4), regulate the amount that waste gas combustion furnace (4) cycle gas is sent in control by this confession waste gas regulon, make the heating system heating load adjustable; New wind adjusting airduct is being set for new wind blower fan (8) air outlet, described new wind is regulated airduct and is provided with the new wind adjusting of bypass airduct, the new wind of bypass is regulated airduct and is provided with new wind bypass regulator valve (13), new wind is regulated airduct and is provided with new wind control valve (12), regulating airduct, new wind control valve (12), the new wind adjusting airduct of bypass and new wind bypass regulator valve (13) by new wind forms for new wind regulon, the resh air requirement that replenishes to drying chamber according to the variation adjusted in concert that is sent to the incinerator return air quantity, thus the pressure balance of drying chamber circulated air guaranteed; Be connected with new air heat-exchange control valve (10) and new air heat-exchange smoke regulating valve (11) on the flue gas pipeline of new air heat-exchange device (9), by being connected of the new wind regulon of described confession and new air heat-exchange device (9), new wind is realized in new air heat-exchange device (9) and the heat exchange of flue gas; At the fume emission mouth smog discharge temperature detecting element (17) is set, sends the instruction adjusting by this detector unit and send into exhausted air quantity.
2. the drying room waste gases incineration flue gas heating system that heating load according to claim 1 is adjustable is characterized in that described smoke heat replacing device (5) is 3-6.
3. the drying room waste gases incineration flue gas heating system that heating load according to claim 1 is adjustable, the course of work that it is characterized in that described burned waste gas flue gas heating system is finished according to the following steps: the circulating fan that 1. at first starts smoke heat replacing device (5), start for exhaust gas fan (1), start for new wind blower fan (8), at this moment, waste gas regulating valve (2), flue gas heat exchange control valve (6), new wind control valve (12), new air heat-exchange control valve (10) is in full-gear, exhaust gas bypass control valve (3), flue gas heat exchange smoke regulating valve (7), new wind bypass regulator valve (13), new air heat-exchange smoke regulating valve (11) is in the complete shut-down state; 2. start the burning unit of waste gas combustion furnace (4), it is 750 ℃ that unit is controlled the furnace chamber temperature automatically, and drying chamber detector unit (14), new wind-warm syndrome degree detecting element (15), smog discharge temperature detecting element (16), (17) enter automatic detection monitor state simultaneously; 3. set the operating temperature height in limited time when the oven dry room air reaches, the heat supply electric control system is sent conditioning signal and is closed little flue gas heat exchange control valve (6), opens big flue gas heat exchange smoke regulating valve (7); When the oven dry room air was lower than setting operating temperature lower bound, the heat supply electric control system was sent conditioning signal and is driven big flue gas heat exchange control valve (6); Turn down flue gas heat exchange smoke regulating valve (7); 4. when heat that the heating load of heating system needs greater than drying chamber, the heat supply electric control system is sent the aperture that above-mentioned all kinds of valves are regulated in instruction, guarantees that the temperature of drying chamber is controlled in the operating temperature range, makes the exhaust temperature of flue gas constantly raise; The exhaust temperature of flue gas is controlled in 160-180 ℃; Surpass 180 ℃ when detecting system's exhaust gas temperature, the heat supply electric control system is sent instruction and is turned down waste gas regulating valve (2), new wind control valve (12); Open big exhaust gas bypass control valve (3), new wind bypass regulator valve (13), reduce exhaust gas volumn gradually, reduce exhaust gas temperature; After exhaust gas temperature was lower than 180 ℃, above-mentioned each control valve all was in the dynamic adjustments state, and exhaust gas temperature is stabilized in 180 ℃; When 5. the heat that needs when drying chamber increased, the heat supply electric control system was at first sent instruction, progressively new air heat-exchange control valve (10) is reached maximum; New air heat-exchange smoke regulating valve (11) is in closed condition, if the new wind-warm syndrome degree that replenishes to drying chamber under this state still is lower than design temperature, then heat supply electric control system is sent instruction again, drives big waste gas regulating valve (2), new wind control valve (12); Turn down exhaust gas bypass control valve (3), new wind bypass regulator valve (13), make the new wind-warm syndrome degree that replenishes to drying chamber reach design temperature, realize the temperature dynamic balance again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100557566A CN101324399B (en) | 2007-06-13 | 2007-06-13 | Drying room waste gases incineration flue gas heating system with adjustable heat supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100557566A CN101324399B (en) | 2007-06-13 | 2007-06-13 | Drying room waste gases incineration flue gas heating system with adjustable heat supply |
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| Publication Number | Publication Date |
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| CN101324399A CN101324399A (en) | 2008-12-17 |
| CN101324399B true CN101324399B (en) | 2011-10-19 |
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| CN2007100557566A Active CN101324399B (en) | 2007-06-13 | 2007-06-13 | Drying room waste gases incineration flue gas heating system with adjustable heat supply |
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| DE102010006550B4 (en) * | 2010-02-01 | 2015-08-13 | Eisenmann Ag | Device for drying objects |
| CN102200286A (en) * | 2011-05-05 | 2011-09-28 | 浙江永通纺织印染有限公司 | Waste gas treatment system for high-temperature oven |
| CN103267411B (en) * | 2013-05-22 | 2015-01-28 | 浙江光炎节能环保科技股份有限公司 | Circulation thickening waste gas treating system |
| CN103949380A (en) * | 2014-04-25 | 2014-07-30 | 重庆同乘工程咨询设计有限责任公司 | Implementation method for mixed routing production of different types of vehicles in vehicle coating line |
| CN103968393A (en) * | 2014-06-04 | 2014-08-06 | 江苏兆年涂装科技有限公司 | Rotary type exhaust gas processing device |
| CN106179911B (en) * | 2016-09-18 | 2019-08-20 | 中国汽车工业工程有限公司 | A kind of vehicle furnace drying room heating zone temperature control system based on waste heat recycling |
| CN106524739A (en) * | 2016-11-18 | 2017-03-22 | 江苏长虹智能装备集团有限公司 | Novel heating system and method for drying room |
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| CN109931796A (en) * | 2019-04-02 | 2019-06-25 | 厦门高谱科技有限公司 | A kind of painting dressing automobiles drying chamber circulated air heat-exchanger rig |
| CN113108586A (en) * | 2021-03-30 | 2021-07-13 | 浙江德瑞新材科技股份有限公司 | Friction plate production system and production method |
| CN113108587A (en) * | 2021-03-30 | 2021-07-13 | 浙江德瑞新材科技股份有限公司 | Waste gas treatment and heat energy recovery equipment and method based on friction plate production process |
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Owner name: CHINA FAW CO., LTD. Free format text: FORMER OWNER: CHINESE AUTO GROUP CO NO.1 Effective date: 20111121 |
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Effective date of registration: 20111121 Address after: 130011 Changchun Province, West New Economic and Technological Development Zone, Dongfeng Street, No. 2259, No. Patentee after: China FAW Group Corporation Address before: 130011 Dongfeng Street, Jilin, Changchun, No. 2259 Patentee before: China FAW Group Corporation |