CN102198337A - Environment-friendly energy-saving exhaust gas treatment device and method - Google Patents
Environment-friendly energy-saving exhaust gas treatment device and method Download PDFInfo
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- CN102198337A CN102198337A CN2010101490527A CN201010149052A CN102198337A CN 102198337 A CN102198337 A CN 102198337A CN 2010101490527 A CN2010101490527 A CN 2010101490527A CN 201010149052 A CN201010149052 A CN 201010149052A CN 102198337 A CN102198337 A CN 102198337A
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- baking oven
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Abstract
The invention provides an environment-friendly energy-saving exhaust gas treatment device and method. Exhaust gas pumped from a rear oven is delivered to a front oven, so that the overall exhaust gas quantity is reduced. A traditional hot pump technology is utilized in the invention, the exhaust gas is condensed by a hot pump evaporator after being cooled, solvents are reclaimed, discharged air is heated by a hot pump condenser, and then, the heated gas with high temperature is delivered to the oven and cyclically utilized. The gas cyclically utilized by the oven is optimal gas which does not contain oxygen (or with a lower oxygen concentration), and original air can be replaced by nontoxic economic inert gas, such as nitrogen, carbon dioxide and the like.
Description
Technical field
The present invention relates to a kind of environmental protection and energy saving air inlet and outlet device and method, especially be applied to belong to the environmental protection and energy saving technical field on the evaporation drying of organic solvents such as compounding machine, coating machine, paint line, tin graphed sheet paint line, color aluminium coating line.
Background technology
Along with domestic printing packaging industry develops rapidly, quantity such as coating machine, oil paint coating line, tin graphed sheet paint line, color aluminium coating line are more and more, and the color aluminium coating line of list China has accounted for 60% of the world according to statistics.The existing equipment energy consumption is big, and exhaust system or in line can cause the significant wastage of energy like this; By in line behind the secondary return air, it is saturating to cause product to do like this, and residual solvent or moisture strengthen, and influence properties of product.The tail gas that patent 200920177797.7 back baking ovens are released can be used the front baking oven, and total external capacity is reduced, and has reduced reactive loss, and solvent strength increases in the exhaust simultaneously, is more conducive to down together treatment of waste gas.
Patent 200910005817.7 adds catalytic combustion system before return air on the basis of patent 200920177797.7, reduced partial discharge, has utilized heat energy, but can increase greenhouse gases carbon dioxide CO
2Discharging.
The water-base cement coating technique is also not overripened, has evaporation of water latent heat bigger again, and the gas-solvent boiling point is higher relatively, causes machine speed to reduce, and energy consumption increases.
Summary of the invention
The present invention is according to existing coating process reality, the solvent strength that promptly enters baking oven band coating material from large to small, and the solvent strength of obtaining around the baking oven place material is low, be preferably zero (using fresh air), it is little to advance a little bigger influence of baking oven place concentration, the tail gas that the back baking oven is released is withdrawn into 5 heat exchangers by 3 and controls temperature well again to the front baking oven, has guaranteed that like this baking oven internal solvent gas concentration is ascending to import by material outlet.
Because of organic solvents such as benzene class, ester class, ketone belong to combustible and explosive articles, so pipeline preferably also should install explosion-protection equipment additional in carrying.
Combustable gas concentration in the combustable gas concentration acquisition sensor 4 detectable gases detects explosion limit, to guarantee security of system.
The present invention is on the basis of above-mentioned two patents, be that the tail gas that the back baking oven is released is back to use the front baking oven, total external capacity is reduced, utilize contemporary heat pump techniques, exhaust cooling back evaporator with heat pump 6 condensations, reclaim solvent, by heat pump condenser 8 heating, it is recycling the more higher gas of temperature after heating to be sent back to baking oven air draft.
Organic solvents such as organic solvent that uses because of reality such as benzene class, ester class, ketone belong to combustible and explosive articles, be gas concentration before the raising condensation, reduce energy consumption, improve condensation effect, guarantee the security of operation production process, the recycling gas of baking oven is preferably oxygen-free gas (or oxygen concentration is lower), and the inert gas of nontoxic economy such as available nitrogen, carbon dioxide or its mist replaces original air.
Because of recycling gas can contain a spot of solvent, the product residual solvent does not exceed standard and energy-conservation effect in order to reach, the back segment baking oven preferably adds loads onto infrared heater, especially it is close with the solvent absorbing wavelength to control the infrared ray emission wavelength, infrared ray shines directly on the solvent, heat is concentrated absorbed by solvent, more energy-conservation like this.
Description of drawings
Figure be in coating machine, compounding machine, the paint line before and after the principle schematic of each two joint baking ovens and heat pumps.
Among the figure, 1 is first section baking oven, and 2 is second section baking oven, 3 air exhausters, and 4 is the combustable gas concentration acquisition sensor, and 5 is heat exchanger, and 6 is evaporator with heat pump, and 7 is heat pump compressor, and 8 is heat pump condenser, and 9 is the heat pump choke valve.
The specific embodiment
According to existing coating process reality, the solvent strength that promptly enters baking oven band coating material from large to small, and the solvent strength of obtaining around the baking oven place material is low, be preferably zero (using fresh air), it is little to advance a little bigger influence of baking oven place concentration, the tail gas that the back baking oven is released is withdrawn into 5 heat exchangers by 3 and controls temperature well again to the front baking oven, has guaranteed that like this baking oven internal solvent gas concentration is ascending to import by material outlet.
Because of organic solvents such as benzene class, ester class, ketone belong to combustible and explosive articles, so pipeline preferably also should install explosion-protection equipment additional in carrying.
Combustable gas concentration in the combustable gas concentration acquisition sensor 4 detectable gases detects explosion limit, to guarantee security of system.
The present invention is on the basis of above-mentioned two patents, be that the tail gas that the back baking oven is released is back to use the front baking oven, total external capacity is reduced, utilize contemporary heat pump techniques, exhaust cooling back evaporator with heat pump 6 condensations, reclaim solvent, by heat pump condenser 8 heating, it is recycling the more higher gas of temperature after heating to be sent back to baking oven air draft.
Organic solvents such as organic solvent that uses because of reality such as benzene class, ester class, ketone belong to combustible and explosive articles, be gas concentration before the raising condensation, reduce energy consumption, improve condensation effect, guarantee the security of operation production process, the recycling gas of baking oven is preferably oxygen-free gas (or oxygen concentration is lower), and the inert gas of nontoxic economy such as available nitrogen, carbon dioxide or its mist replaces original air.Exhaust concentration like this can raise, and improves the efficient that reclaims solvent.
Because of recycling gas can contain a spot of solvent, the product residual solvent does not exceed standard and energy-conservation effect in order to reach, the back segment baking oven preferably adds infrared heater, especially it is close with the solvent absorbing wavelength to control the infrared ray emission wavelength, infrared ray shines directly on the solvent, heat is concentrated absorbed by solvent, more energy-conservation like this.
Claims (6)
1. environment friendly energy-saving air-discharging treating device and method are made up of pipeline, air exhauster, calandria etc., it is characterized in that: utilize heat pump techniques, exhaust cooling back evaporator with heat pump condensation, recovery solvent.
2. according to described a kind of environment friendly energy-saving air-discharging treating device of claim 1 and method, it is characterized in that: air draft is heated by heat pump condenser, and it is recycling the more higher gas of temperature after heating to be sent back to baking oven.
3. according to described a kind of environment friendly energy-saving air-discharging treating device of claim 1 and method, it is characterized in that: the recycling gas of baking oven is that oxygen-free gas or oxygen concentration are lower.
4. according to described a kind of environment friendly energy-saving air-discharging treating device of claim 3 and method, it is characterized in that: the inert gas with nontoxic economy such as nitrogen, carbon dioxide or its mists replaces original air.
5. according to described a kind of environment friendly energy-saving air-discharging treating device of claim 1 and method, it is characterized in that: the back segment baking oven installs infrared heater additional.
6. according to described a kind of environment friendly energy-saving air-discharging treating device of claim 1 and method, it is characterized in that: the tail gas that the back baking oven is released is back to use the front baking oven, and total external capacity is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101490527A CN102198337A (en) | 2010-03-22 | 2010-03-22 | Environment-friendly energy-saving exhaust gas treatment device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101490527A CN102198337A (en) | 2010-03-22 | 2010-03-22 | Environment-friendly energy-saving exhaust gas treatment device and method |
Publications (1)
| Publication Number | Publication Date |
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| CN102198337A true CN102198337A (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101490527A Pending CN102198337A (en) | 2010-03-22 | 2010-03-22 | Environment-friendly energy-saving exhaust gas treatment device and method |
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| CN (1) | CN102198337A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489437A (en) * | 2011-12-02 | 2012-06-13 | 杨峥雄 | Energy-saving device and method for drying box of coating compound machine |
| CN103223398A (en) * | 2013-04-21 | 2013-07-31 | 杨峥雄 | Vertical type gluing machine drying box and energy-saving method thereof |
| CN105142795A (en) * | 2013-04-12 | 2015-12-09 | 杜尔系统有限责任公司 | Coating system having cooling device |
| CN106839651A (en) * | 2017-03-27 | 2017-06-13 | 四川华亿石油天然气工程有限公司 | The system and technique of nitrogen are reclaimed in a kind of tail gas from vacuum drying oven |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496985A (en) * | 2009-01-31 | 2009-08-05 | 杨峥雄 | Environment friendly energy-saving air-discharging treating device and method |
| CN101648181A (en) * | 2009-09-10 | 2010-02-17 | 简甦 | Integral overlapping drying equipment |
-
2010
- 2010-03-22 CN CN2010101490527A patent/CN102198337A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496985A (en) * | 2009-01-31 | 2009-08-05 | 杨峥雄 | Environment friendly energy-saving air-discharging treating device and method |
| CN101648181A (en) * | 2009-09-10 | 2010-02-17 | 简甦 | Integral overlapping drying equipment |
Non-Patent Citations (1)
| Title |
|---|
| 李满峰等: "典型热泵干燥装置的参数优化研究", 《化工装备技术》, no. 05, 30 October 2006 (2006-10-30) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489437A (en) * | 2011-12-02 | 2012-06-13 | 杨峥雄 | Energy-saving device and method for drying box of coating compound machine |
| CN102489437B (en) * | 2011-12-02 | 2013-12-18 | 长兴（广州）光电材料有限公司 | Energy-saving device and method for drying box of coating compound machine |
| CN105142795A (en) * | 2013-04-12 | 2015-12-09 | 杜尔系统有限责任公司 | Coating system having cooling device |
| CN105142795B (en) * | 2013-04-12 | 2017-09-05 | 杜尔系统有限责任公司 | Application system with cooling device |
| US9956577B2 (en) | 2013-04-12 | 2018-05-01 | Dürr Systems GmbH | Coating system having a cooling device |
| CN103223398A (en) * | 2013-04-21 | 2013-07-31 | 杨峥雄 | Vertical type gluing machine drying box and energy-saving method thereof |
| CN106839651A (en) * | 2017-03-27 | 2017-06-13 | 四川华亿石油天然气工程有限公司 | The system and technique of nitrogen are reclaimed in a kind of tail gas from vacuum drying oven |
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Application publication date: 20110928 |