CN102078855A - Drying residual-heat utilization device of large-scale automobile coating production line - Google Patents
Drying residual-heat utilization device of large-scale automobile coating production line Download PDFInfo
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- CN102078855A CN102078855A CN2009102179388A CN200910217938A CN102078855A CN 102078855 A CN102078855 A CN 102078855A CN 2009102179388 A CN2009102179388 A CN 2009102179388A CN 200910217938 A CN200910217938 A CN 200910217938A CN 102078855 A CN102078855 A CN 102078855A
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- Prior art keywords
- gas
- water
- heat exchange
- exchange device
- liquid heat
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- 238000001035 drying Methods 0.000 title claims abstract description 26
- 239000011248 coating agent Substances 0.000 title abstract 2
- 238000000576 coating method Methods 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000007781 pre-processing Methods 0.000 claims abstract description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 24
- 239000003546 flue gas Substances 0.000 claims description 24
- 239000002918 waste heat Substances 0.000 claims description 17
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 10
- 239000003973 paint Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000002203 pretreatment Methods 0.000 claims description 4
- 239000008400 supply water Substances 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The invention relates to a drying residual-heat utilization device of a large-scale automobile coating production line, which is characterized in that after hot wind in a drying room passes through a drying waste-gas processing device, a smoke pipeline is connected with a gas-liquid heat exchange device; water pipes are uniformly distributed in the cavity of the gas-liquid heat exchange device; and after the heat exchange is carried out, the heated water in the gas-liquid heat exchange device flows into preprocessing equipment; and the residual heat of waste gas in the drying room is secondarily utilized, thereby enhancing the utilization rate of energy sources, decreasing the discharge quantity of carbon dioxide, lowering the cost of a single automobile, and lowering the maintenance cost.
Description
Technical field:
What the present invention relates to is a kind of full-sized car paint line drying waste heat use device, belongs to the waste gas energy-saving field.
Background technology:
The domestic automobile paint line mostly adopts incinerator promptly to handle waste gas with methods such as quaternary body, RT0, Tar at present, and a flue gas of generation for drying chamber provides heat, and is discharged factory building as the thermal source of (or two a) smoke heat replacing device.
It mainly acts on
A. handle the waste gas that produces in the drying chamber
B. provide a part of heat to drying chamber
Its major defect is that exhaust gas temperature is too high, and heat energy utilization is insufficient.
Summary of the invention:
The object of the present invention is to provide a kind of full-sized car paint line drying waste heat use device, is the device that a kind of burnt gas waste heat secondary utilizes, and it has improved the flue gas waste heat recovery ability.
Technical solution of the present invention is achieved in that full-sized car paint line drying waste heat use device, form by oven dry emission-control equipment, gas-liquid heat exchange device, control module, it is characterized in that: the drying chamber hot blast is by after drying emission-control equipment, flue gas pipeline links to each other with the gas-liquid heat exchange device, be evenly equipped with water pipe in the cavity of gas-liquid heat exchange device, after carrying out heat exchange, the hot water that is heated in the gas-liquid heat exchange device feeds the pre-processing device heat-exchanger rig and is used to add pre-processing device; Its concrete steps are as follows: 1, dry a delivery temperature of drying chamber in the emission-control equipment greater than 200 ℃, after the gas-liquid heat exchange device reclaims flue gas heat, discharge outdoor, flue gas and water carry out heat exchange in the gas-liquid heat exchange device, flue-gas temperature is reduced to 120 ℃, will be used for heat supply after the circulation of the water in the water pipe heating; Flue is provided with by-passing valve, when water temperature continues to raise, flue gas directly is disposed to atmosphere through bypass without the gas-liquid heat exchange device; 2, the hot water in the gas-liquid heat exchange device inner conduit feeds the hot water storgae of pre-treatment workshop section, is used for insulation, 55～60 ℃ of hot water storgae constant temperature; The thermal source of hot water is the two thermals source of gas-liquid heat exchange device and board-like water-water heat exchanger in the hot water storgae, preferentially uses the gas-liquid heat exchange device, and two water circulating pumps are set, the using and the reserved, and 65 ℃ of return water temperatures, 95 ℃ of supply water temperatures, pipeline is provided with variable frequency pump and safety valve; 3, hot water storgae disposes automatic control system, and when gas-liquid heat exchange device caloric value was incubated institute's calorific requirement greater than hot water storgae, by-passing valve directly drained into atmosphere to high-temperature flue gas without waste-heat recoverer; During gas-liquid heat exchange device shortage of heat, provide the insufficient section heat, adopt triple valve to control the heat that adds of board-like water-water heat exchanger by board-like water-water heat exchanger.
The invention has the beneficial effects as follows the drying room waste gases waste heat is carried out the secondary utilization, improve energy utilization rate, reduce CO2 emissions, reduce single vehicle cost, maintenance cost is low.
Description of drawings:
Fig. 1 is a schematic diagram of the present invention
The specific embodiment:
The present invention will be further described below in conjunction with accompanying drawing: as shown in Figure 1, full-sized car paint line drying waste heat use device, form by oven dry emission-control equipment, gas-liquid heat exchange device, control module, it is characterized in that: the drying chamber hot blast is by after drying emission-control equipment, flue gas pipeline links to each other with the gas-liquid heat exchange device, be evenly equipped with water pipe in the cavity of gas-liquid heat exchange device, after carrying out heat exchange, the hot water that is heated in the gas-liquid heat exchange device feeds the pre-processing device heat-exchanger rig and is used to add pre-processing device; Its concrete steps are as follows: 1, dry the delivery temperature of drying chamber in the emission-control equipment greater than 200 ℃, after the gas-liquid heat exchange device reclaims flue gas heat, discharge outdoor, flue gas and water carry out heat exchange in the gas-liquid heat exchange device, flue-gas temperature is reduced to 120 ℃, will be used for heat supply after the circulation of the water in the water pipe heating; Flue is provided with by-passing valve, when water temperature continues to raise, flue gas directly is disposed to atmosphere through bypass without the gas-liquid heat exchange device; 2, the hot water in the gas-liquid heat exchange device inner conduit feeds the hot water storgae insulation of pre-treatment workshop section, is used for insulation, 55～60 ℃ of hot water storgae constant temperature; The thermal source of hot water is the two thermals source of gas-liquid heat exchange device and board-like water-water heat exchanger in the hot water storgae, preferentially uses the gas-liquid heat exchange device, and two water circulating pumps are set, the using and the reserved, and 65 ℃ of return water temperatures, 95 ℃ of supply water temperatures, pipeline is provided with variable frequency pump and safety valve; 3, hot water storgae disposes automatic control system, and when gas-liquid heat exchange device caloric value was incubated institute's calorific requirement greater than hot water storgae, by-passing valve directly drained into atmosphere to high-temperature flue gas without waste-heat recoverer; During gas-liquid heat exchange device shortage of heat, provide the insufficient section heat, adopt triple valve to control the heat that adds of board-like water-water heat exchanger by board-like water-water heat exchanger.
Be example with the light-duty depot in Harbin application workshop below, this application workshop have the electrophoresis drying chamber and in be coated with the drying chamber exhaust can be for utilizing, capacity is respectively 7650m
3/ h and 5630m
3/ h, 200 ℃ of delivery temperatures, flue gas emptying behind the gas-liquid heat exchange device, flue gas and water carry out heat exchange in the gas-liquid heat exchange device, and flue-gas temperature is reduced to 120 ℃, will be used for the technology heat supply after the water circulation heating.Flue is provided with by-passing valve, when water temperature continue to raise, shows the waste heat recovery heat greater than requirement, may cause the hot water boiling, at this moment flue gas without the direct bypass of gas-liquid heat exchange device to atmosphere to prevent the hot water gasification.The hot water of waste heat recovery is used for the hot water storgae insulation of pre-treatment workshop section, and hot water storgae need keep 55～60 ℃ of constant temperature.When hot water storgae starts operation, it is bigger to add heat, as calculated, adding heat is 1100kW, the heat of waste heat recovery has only 345kW, so this heating system also is provided with board-like water-water heat exchanger thermal source as a supplement except that the thermal source of heat as preferential use that waste-heat recoverer produces, when the waste heat shortage of heat, use, be in constant temperature all the time with the hot water that guarantees hot water storgae.Automatic control system can be moved automatically and guarantee tank constant temperature.The recirculated water heating system is provided with two water circulating pumps, the using and the reserved, and 65 ℃ of system's return water temperatures, 95 ℃ of supply water temperatures, hot water circuit amount 45.9t/h, house steward's caliber DN125 is provided with variable frequency pump water-supply and pressure-stabling system in addition.System is provided with safety valve, when water system surpasses predetermined pressure, and sluicing step-down, the security of operation of assurance system.
Claims (1)
1. full-sized car paint line drying waste heat use device, form by oven dry emission-control equipment (1), gas-liquid heat exchange device (2), control module, it is characterized in that: the drying chamber hot blast is by after drying emission-control equipment (1), flue gas pipeline links to each other with gas-liquid heat exchange device (2), be evenly equipped with water pipe in the cavity of gas-liquid heat exchange device (2), after carrying out heat exchange, the water that is heated in the gas-liquid heat exchange device (2) feeds pre-processing device; Its concrete steps are as follows: 1, the delivery temperature of drying chamber is 200 ℃ in the oven dry emission-control equipment (1), after gas-liquid heat exchange device (2) reclaims flue gas heat, discharge outdoor, flue gas and water carry out heat exchange in gas-liquid heat exchange device (2), flue-gas temperature is reduced to 120 ℃, will be used for heat supply after the circulation of the water in the water pipe heating; Flue is provided with by-passing valve, when water temperature continues to raise, flue gas directly is disposed to atmosphere through bypass without the gas-liquid heat exchange device; 2. the hot water in gas-liquid heat exchange device (2) inner conduit feeds hot water storgae (3) insulation of pre-treatment workshop section, 55～60 ℃ of hot water storgae (3) constant temperature; The thermal source of hot water is gas-liquid heat exchange device (2) and the two thermals source of board-like water-water heat exchanger (4) in the hot water storgae, the preferential gas-liquid heat exchange device that uses, two water circulating pumps are set, the using and the reserved, 65 ℃ of return water temperatures, 95 ℃ of supply water temperatures, hot water circuit amount 45.9t/h, house steward's caliber DN125, pipeline is provided with variable frequency pump and safety valve; 3, hot water storgae (3) disposes automatic control system, and when gas-liquid heat exchange device (2) caloric value was incubated institute's calorific requirement greater than hot water storgae (3), by-passing valve directly drained into atmosphere to high-temperature flue gas without waste-heat recoverer; During gas-liquid heat exchange device (2) shortage of heat, provide the insufficient section heat, adopt triple valve to control the heat that adds of board-like water-water heat exchanger by board-like water-water heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102179388A CN102078855A (en) | 2009-11-27 | 2009-11-27 | Drying residual-heat utilization device of large-scale automobile coating production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102179388A CN102078855A (en) | 2009-11-27 | 2009-11-27 | Drying residual-heat utilization device of large-scale automobile coating production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102078855A true CN102078855A (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102179388A Pending CN102078855A (en) | 2009-11-27 | 2009-11-27 | Drying residual-heat utilization device of large-scale automobile coating production line |
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| CN (1) | CN102078855A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586841A (en) * | 2012-03-29 | 2012-07-18 | 苏州源申涂装净化设备有限公司 | Electrophoretic coating line heat energy recovery system |
| CN102698943A (en) * | 2012-07-02 | 2012-10-03 | 山东迈赫自动化装备股份有限公司 | Lateral drying room |
| CN103286051A (en) * | 2013-05-31 | 2013-09-11 | 北汽(广州)汽车有限公司 | Energy-saving method of painting workshop |
| CN107152855A (en) * | 2017-06-13 | 2017-09-12 | 浙江明泉工业装备科技有限公司 | The electrophoresis drying unit of new-energy automobile car body coating production line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173324A (en) * | 2006-10-31 | 2008-05-07 | 黄石山力科技发展有限公司 | Novel technique for comprehensive utilization of continuous strip annealing furnace flue gas exhaust heat and device thereof |
| CN201104133Y (en) * | 2007-09-25 | 2008-08-20 | 中国铝业股份有限公司 | Aluminum electrolysis flue gas residual heat utilization device |
-
2009
- 2009-11-27 CN CN2009102179388A patent/CN102078855A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173324A (en) * | 2006-10-31 | 2008-05-07 | 黄石山力科技发展有限公司 | Novel technique for comprehensive utilization of continuous strip annealing furnace flue gas exhaust heat and device thereof |
| CN201104133Y (en) * | 2007-09-25 | 2008-08-20 | 中国铝业股份有限公司 | Aluminum electrolysis flue gas residual heat utilization device |
Non-Patent Citations (2)
| Title |
|---|
| 李东熊等: "烟气余热和太阳能作为锅炉房补充热源的探讨", 《煤气与热力》 * |
| 马汝成: "汽车涂装线节能减排技术应用", 《汽车与配件》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586841A (en) * | 2012-03-29 | 2012-07-18 | 苏州源申涂装净化设备有限公司 | Electrophoretic coating line heat energy recovery system |
| CN102698943A (en) * | 2012-07-02 | 2012-10-03 | 山东迈赫自动化装备股份有限公司 | Lateral drying room |
| CN103286051A (en) * | 2013-05-31 | 2013-09-11 | 北汽(广州)汽车有限公司 | Energy-saving method of painting workshop |
| CN103286051B (en) * | 2013-05-31 | 2014-06-18 | 北汽(广州)汽车有限公司 | Energy-saving method of painting workshop |
| CN107152855A (en) * | 2017-06-13 | 2017-09-12 | 浙江明泉工业装备科技有限公司 | The electrophoresis drying unit of new-energy automobile car body coating production line |
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Application publication date: 20110601 |