CN205300206U - Heat pump drying system of adjustable solvent strength - Google Patents
Heat pump drying system of adjustable solvent strength Download PDFInfo
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- CN205300206U CN205300206U CN201521030152.2U CN201521030152U CN205300206U CN 205300206 U CN205300206 U CN 205300206U CN 201521030152 U CN201521030152 U CN 201521030152U CN 205300206 U CN205300206 U CN 205300206U
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- heat pump
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- printing
- fan
- baking oven
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Abstract
The utility model discloses a heat pump drying system of adjustable solvent strength, including printing stoving heat pump, oven and controller, the supply -air outlet of printing stoving heat pump is connected to the air intake of oven through air supply channel, the return air inlet of printing stoving heat pump is connected to the air outlet of oven through the return air wind channel, the supply -air outlet of printing stoving heat pump is equipped with the air supply fan, printing stoving heat pump still is equipped with fresh wind port and air exit, the air exit of printing stoving heat pump is equipped with the fan of airing exhaust, the inherent oven one side that is close to in return air wind channel is equipped with blast gate and concentration detector. The utility model discloses can can realize to reduce organic solvent's emission to the control of organic solvent concentration in the oven through adjustment air exhaust frequency, new trend intake and the switching blast gate of fan, reduce post processing's the energy consumption and the degree of difficulty moreover, also can effectively avoid simultaneously overstocking the oven explosion condition that causes because of organic solvent exceeds standard. The utility model discloses but the wide application is in heat pump system.
Description
Technical field
This utility model relates to heat pump and controls technical field, particularly relates to the heat pump drying system of a kind of scalable solvent strength.
Background technology
It is known that, the waste gas that printing is discharged after drying heat pump drying printing item not only comprises substantial amounts of heat, and comprise substantial amounts of organic solvent, heat in waste gas is usually only reclaimed by conventional printing drying heat pump, organic solvent in waste gas is then directly discharged in air, thus increasing the pollution of air, not environmentally. In order to solve this problem, organic solvent is imported in other process equipment and reclaims by some producers, but if organic solvent concentration is excessive, will increase difficulty and the energy consumption of process equipment; Also organic solvent is not discharged by some producer, directly dries heat pump inner loop in printing, but after organic solvent concentration exceeds standard, it is easy to baking oven can be caused to explode.
Utility model content
In order to solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of energy emissions-reducing, reduces energy consumption and the heat pump drying system of safe and reliable scalable solvent strength.
Technical solution adopted in the utility model is:
The heat pump drying system of scalable solvent strength, heat pump is dried including printing, baking oven and controller, the air outlet that heat pump is dried in described printing is connected to the air inlet of baking oven by supply air duct, the return air inlet that heat pump is dried in described printing is connected to the air outlet of baking oven by return airway, the air outlet that heat pump is dried in described printing is provided with breeze fan, described printing is dried heat pump and is additionally provided with fresh wind port and exhaust outlet, the exhaust outlet that heat pump is dried in described printing is provided with exhaust fan, described return airway is inherent is provided with air-valve and concentration detector near baking oven side, described breeze fan, exhaust fan, air-valve and concentration detector are all connected with controller.
As further improvement of the utility model, being provided with B/P EGR Back Pressure Transducer EGR in described baking oven, described B/P EGR Back Pressure Transducer EGR is connected with controller.
As further improvement of the utility model, described supply air duct is inherent is provided with temperature sensor near baking oven side, and described temperature sensor is connected with controller.
As further improvement of the utility model, described breeze fan is frequency conversion fan.
As further improvement of the utility model, described exhaust fan is frequency conversion fan.
The beneficial effects of the utility model are:
The heat pump drying system of this utility model scalable solvent strength can pass through to adjust the frequency of exhaust fan, new wind intake and opening and closing air-valve, can realize the control of organic solvent concentration in baking oven, the discharge of organic solvent can not only be reduced, and also reduce energy consumption and the difficulty that the later stage processes, also can be prevented effectively from because organic solvent exceeds standard the baking oven explosive event overstock and cause simultaneously. Further, this utility model detects negative pressure and the temperature of baking oven in real time by B/P EGR Back Pressure Transducer EGR and temperature sensor, and regulated by the frequency and PID adjusting exhaust fan, it is ensured that printing drying heat pump remains to the carrying out of high-effect high-quality when carrying out concentration and controlling dries.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further:
Fig. 1 is the structural representation of the heat pump drying system of this utility model scalable solvent strength.
Fig. 2 is the control schematic diagram of the heat pump drying system of this utility model scalable solvent strength.
Detailed description of the invention
With reference to Fig. 1 and Fig. 2, the heat pump drying system of this utility model scalable solvent strength, heat pump 1 is dried including printing, baking oven 2 and controller, described printing is dried the air outlet 11 of heat pump 1 and is connected to the air inlet of baking oven 2 by supply air duct 3, described printing is dried the return air inlet 12 of heat pump 1 and is connected to the air outlet of baking oven 2 by return airway 4, the air outlet 11 that heat pump 1 is dried in described printing is provided with breeze fan 5, described printing is dried heat pump 1 and is additionally provided with fresh wind port 13 and exhaust outlet 14, the exhaust outlet 14 that heat pump 1 is dried in described printing is provided with exhaust fan 6, described return airway 4 is inherent is provided with air-valve 7 and concentration detector 8 near baking oven 2 side, described breeze fan 5, exhaust fan 6, air-valve 7 and concentration detector 8 are all connected with controller.
Being further used as preferred embodiment, be provided with B/P EGR Back Pressure Transducer EGR 9 in described baking oven 2, described B/P EGR Back Pressure Transducer EGR 9 is connected with controller. This utility model detects the negative pressure condition of baking oven 2 in real time by B/P EGR Back Pressure Transducer EGR 9, it is thus possible to adjusted the frequency of exhaust fan 6 by controller according to actual suction pressure situation, it is ensured that printing drying heat pump 1 remains to the carrying out of high-effect high-quality when carrying out concentration and controlling dries.
Being further used as preferred embodiment, described supply air duct 3 is inherent is provided with temperature sensor 10 near baking oven 2 side, and described temperature sensor 10 is connected with controller. This utility model detects the temperature of baking oven 2 in real time by temperature sensor 10, it is thus possible to carry out PID adjustment according to actual temperature situation by controller, it is ensured that printing drying heat pump 1 remains to the carrying out of high-effect high-quality when carrying out concentration and controlling dries.
Being further used as preferred embodiment, described breeze fan 5 is frequency conversion fan.
Being further used as preferred embodiment, described exhaust fan 6 is frequency conversion fan.
The specific works principle of this utility model embodiment is as follows:
Described concentration detector 8 detects organic solvent concentration in return air in real time, when detecting that organic solvent concentration exceeds standard, in baking oven 2 negative pressure (-2 ~-4) situation not affecting printing quality, the frequency being controlled exhaust fan 6 by controller is strengthened and the increasing of new wind, simultaneously, can also detect that temperature fluctuation carries out PID adjustment by controller according to temperature sensor 10, to reduce the organic solvent concentration in baking oven 2.If after above step execution, organic solvent concentration does not also lower, then can pass through controller control air-valve 7 and open, to dilute organic solvent concentration. After organic solvent concentration slowly returns to normal value, then first close air-valve 7 by controller, then reduce the frequency of exhaust fan 6 according to concentration levels and reduce new wind.
When detecting that organic solvent concentration is normal value, the target air volume that controller then can need by controlling the frequency of breeze fan 5 to reach, also can detect temperature according to temperature sensor 10 carries out PID adjustment simultaneously, can be adjusted according to different practical situations. Pressure can also be detected according to B/P EGR Back Pressure Transducer EGR 9 and regulate exhaust fan 6 frequency by controller, thus ensureing baking oven 2 tiny structure (-2 ~-4), in order to avoid solvent effusion. When detecting that negative pressure strengthens, reduce exhaust fan 6 frequency, when detecting that negative pressure reduces, strengthen exhaust fan 6 frequency.
It is above of the present utility model preferably enforcement has been illustrated, but this utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the premise without prejudice to this utility model spirit, and these equivalent deformation or replacement are all contained in the application claim limited range.
Claims (5)
1. the heat pump drying system of scalable solvent strength, it is characterized in that: include printing and dry heat pump, baking oven and controller, the air outlet that heat pump is dried in described printing is connected to the air inlet of baking oven by supply air duct, the return air inlet that heat pump is dried in described printing is connected to the air outlet of baking oven by return airway, the air outlet that heat pump is dried in described printing is provided with breeze fan, described printing is dried heat pump and is additionally provided with fresh wind port and exhaust outlet, the exhaust outlet that heat pump is dried in described printing is provided with exhaust fan, described return airway is inherent is provided with air-valve and concentration detector near baking oven side, described air-supplyWindMachine, exhaust fan, air-valve and concentration detector are all connected with controller.
2. the heat pump drying system of scalable solvent strength according to claim 1, it is characterised in that: being provided with B/P EGR Back Pressure Transducer EGR in described baking oven, described B/P EGR Back Pressure Transducer EGR is connected with controller.
3. the heat pump drying system of scalable solvent strength according to claim 1 and 2, it is characterised in that: described supply air duct is inherent is provided with temperature sensor near baking oven side, and described temperature sensor is connected with controller.
4. the heat pump drying system of scalable solvent strength according to claim 1, it is characterised in that: described breeze fan is frequency conversion fan.
5. the heat pump drying system of scalable solvent strength according to claim 1, it is characterised in that: described exhaust fan is frequency conversion fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521030152.2U CN205300206U (en) | 2015-12-11 | 2015-12-11 | Heat pump drying system of adjustable solvent strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521030152.2U CN205300206U (en) | 2015-12-11 | 2015-12-11 | Heat pump drying system of adjustable solvent strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205300206U true CN205300206U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521030152.2U Active CN205300206U (en) | 2015-12-11 | 2015-12-11 | Heat pump drying system of adjustable solvent strength |
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| CN (1) | CN205300206U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042630A (en) * | 2016-07-05 | 2016-10-26 | 江阴市力达印刷包装机械有限公司 | Electrical control system suitable for photogravure press drying system and control method |
| CN106903991A (en) * | 2017-03-28 | 2017-06-30 | 广州黑马科技有限公司 | A kind of multicolour press air circulation system |
| CN112857017A (en) * | 2021-01-15 | 2021-05-28 | 无锡朗秀科技有限公司 | Oven pressure detection system |
-
2015
- 2015-12-11 CN CN201521030152.2U patent/CN205300206U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042630A (en) * | 2016-07-05 | 2016-10-26 | 江阴市力达印刷包装机械有限公司 | Electrical control system suitable for photogravure press drying system and control method |
| CN106903991A (en) * | 2017-03-28 | 2017-06-30 | 广州黑马科技有限公司 | A kind of multicolour press air circulation system |
| CN112857017A (en) * | 2021-01-15 | 2021-05-28 | 无锡朗秀科技有限公司 | Oven pressure detection system |
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