CN203600771U - Energy-saving drying device for printing press - Google Patents
Energy-saving drying device for printing press Download PDFInfo
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- CN203600771U CN203600771U CN201320680691.5U CN201320680691U CN203600771U CN 203600771 U CN203600771 U CN 203600771U CN 201320680691 U CN201320680691 U CN 201320680691U CN 203600771 U CN203600771 U CN 203600771U
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- air
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- energy
- heat exchanger
- control valve
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- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
An energy-saving drying device for a printing press comprises an air inlet pipe, an air discharging pipe, an exhaust fan, an air inlet fan, a heat exchanger and a thermo-coupler. The energy-saving drying device for the printing press is characterized in that an oven air discharging pipeline is directly communicated with the heat exchanger, air discharged from an oven firstly flows to an air inlet through the inertia effect of air flow, the rest of the air is extracted by the exhaust fan through the air discharging pipe, air resistance of secondary return air and air resistance of partial air discharging are small, so that air discharging is smooth, and the power of the air inlet fan and the exhaust fan is saved.
Description
Technical field
The present invention relates to a kind of printing machine energy-saving drying device, be especially applied on intaglio press, belong to packing mechanical equipment energy-saving field.
Background technology
Existing intaglio press secondary return air system design is unreasonable, the bending of secondary return air pipeline, and resistance is large; When printing machine exhaust blower produces negative pressure when larger, after secondary return air valve opening, not only baking oven hot blast can not be back to heater and recycles, on the contrary the air of machine room is extracted in main exhausting duct, air draft load is strengthened, waste energy, affect on the contrary overall air draft effect.
Summary of the invention
The present invention designs for overcoming above-mentioned shortcoming, utilize the leading portion printing surface principle that colour cell is dried again in the back in many group line typography processes, propose many groups line printing machine power-economizing method, guaranteed that under product drying effect prerequisite up to standard, energy-saving effect is obvious.Scheme of the invention starts experiment on the big rich packing in Zhejiang, the glorious intaglio press in Shantou for 2009 to be implemented, and has obtained beyond thought good effect, can save energy consumption 30%-65%, and product residual solvent can not exceed standard.
A kind of printing machine energy-saving drying device, baking oven exhaust duct directly leads to heat exchanger, utilize distinguished and admirable effect of inertia, the wind that baking oven is discharged preferentially flows to air inlet, redundance is taken away by exhaust blower by exhaust duct, the windage of secondary return air and part air draft is all less, makes intake and exhaust unobstructed, saves into exhaust fan power.
When main air draft control valve is closed, on tube wall same plane, when part is opened, played the effect of wind deflector, the portion gas that makes to drain is discharged to 7 li of main exhaust ducts swimmingly.
Under main air draft control valve, can add deflector, part baking oven exhaust water conservancy diversion, in main exhaust, is drained by exhaust blower 8, avoid the gas backstreaming of heat exchanger in main exhaust.
After secondary return air and new wind mix, heat again by heat exchanger 9, thermocouple 1 detects it and reaches temperature, compare with temperature controller design temperature, (comprise the break-make of electrical heating heater by temperature controller control heat exchanger, steam and hotline heater pipeline aperture size), press oven EAT is guaranteed within the scope of design temperature.Then deliver to drying baker by printing machine air inlet fan 2.
Fresh inlet control valve 3 is coordinated to open in conjunction with secondary return air control valve 4, and in the time that print couple quantity of solvent is larger, for guaranteeing that lower safety limit LEL is lower than 25%, fresh inlet control valve 3 is suitably opened larger, and secondary return air control valve 4 turns down; For guaranteeing that residual solvent does not exceed standard, last colour cell fresh inlet control valve 3 is suitably opened greatly, even now secondary return air control valve 4 contract fullys, main air draft control valve 5 standard-sized sheets, fresh inlet control valve 3 standard-sized sheets.
Other drying baker secondary return air control valve 4 apertures in printing process except last baking oven strengthen, emission gases organic solvent VOC concentration is larger, exhaust that can be less with last colour cell emission gases organic solvent VOC concentration is split up into two each self-dischargings of independent exhausting pipe, leading portion organic solvent VOC concentration is larger like this, useful catalytic combustion is realized idle operation, reclaim the gas waste-heat of discharge by heat exchanger, reach the object of energy-saving and emission-reduction; Back segment emission gases organic solvent VOC concentration is less, adopts catalytic combustion with being pooled to leading portion exhaust duct after Adsorption Concentration again, more preferably dries energy-saving effect to reach; Or total concentration is when higher, can adopt catalytic combustion, RTO method to process organic solvent.
The present invention is applicable to many groups such as unit type intaglio press, set type flexible printing machine line printing machine.
Accompanying drawing explanation
Accompanying drawing is the schematic diagram of bottom sealing bag finished product stacking device.
In figure, 1 is thermocouple, and 2 is printing machine air inlet fan, and 3 is fresh inlet control valve, and 4 is secondary return air control valve, and 5 is main air draft control valve, and 6 is deflector, and 7 is baking oven exhaust duct, and 8 is exhaust blower, and 9 is heat exchanger.
The specific embodiment
A kind of printing machine energy-saving drying device, baking oven exhaust duct directly leads to heat exchanger, utilize distinguished and admirable effect of inertia, the wind that baking oven is discharged preferentially flows to air inlet, redundance is taken away by exhaust blower by exhaust duct, the windage of secondary return air and part air draft is all less, makes intake and exhaust unobstructed, saves into exhaust fan power.
When main air draft control valve is closed, on tube wall same plane, when part is opened, played the effect of wind deflector, the portion gas that makes to drain is discharged to 7 li of main exhaust ducts swimmingly.
Under main air draft control valve, can add deflector, part baking oven exhaust water conservancy diversion, in main exhaust, is drained by exhaust blower 8, avoid the gas backstreaming of heat exchanger in main exhaust.
To many groups line printing machine power-economizing method: colour cell strengthens secondary return air above, fresh wind port aperture is less closes even completely, exhaust outlet aperture is suitable, make exhaust air rate be slightly larger than the air quantity that the upper and lower charging aperture of baking oven flows to, guarantee the negative pressure of oven interior, be less than 25% to guarantee production safety according to the LEL (LEL) that recently controls of the quantity of solvent of every section of drying baker consumption and exhaust air rate simultaneously, the gross exhaust gas of leading portion drying baker is greatly reduced than prior art; Last colour cell is strengthened drying, new wind shutter is strengthened, and return air reduces even return air door closes, or utilizes the new wind of product that the drying baker not using after the colour cell of last printing prints front end to strengthen drying, to guarantee product drying effect, product residual solvent does not exceed standard.
After secondary return air and new wind mix, heat again by heat exchanger 9, thermocouple 1 detects it and reaches temperature, compare with temperature controller design temperature, when temperature is low, (comprise the break-make of electrical heating heater by temperature controller control heat exchanger, steam and hotline heater pipeline aperture size), printing machine EAT is guaranteed within the scope of design temperature.Then deliver to drying baker by printing machine air inlet fan 2.
Fresh inlet control valve 3 is coordinated to open in conjunction with secondary return air control valve 4, and in the time that print couple quantity of solvent is larger, for guaranteeing that lower safety limit LEL is lower than 25%, fresh inlet control valve 3 is suitably opened larger, and secondary return air control valve 4 turns down; For guaranteeing that residual solvent does not exceed standard, last colour cell fresh inlet control valve 3 is suitably opened greatly, even now secondary return air control valve 4 contract fullys, main air draft control valve 5 standard-sized sheets, fresh inlet control valve 3 standard-sized sheets.
Other drying baker secondary return air control valve 4 apertures in printing process except last baking oven strengthen, emission gases organic solvent VOC concentration is larger, exhaust that can be less with last colour cell emission gases organic solvent VOC concentration is split up into two each self-dischargings of independent exhausting pipe, leading portion organic solvent VOC concentration is larger like this, useful catalytic combustion is realized idle operation, reclaim the gas waste-heat of discharge by heat exchanger, reach the object of energy-saving and emission-reduction; Back segment emission gases organic solvent VOC concentration is less, adopts catalytic combustion with being pooled to leading portion exhaust duct after Adsorption Concentration again, more preferably dries energy-saving effect to reach; Or total concentration is when higher, can adopt catalytic combustion, RTO method to process organic solvent.
The present invention is applicable to many groups such as unit type intaglio press, set type flexible printing machine line printing machine.
Claims (1)
1. a printing machine energy-saving drying device, comprise into exhaust duct, exhaust blower, air inlet fan, heat exchanger, thermocouple, it is characterized in that: baking oven exhaust duct directly leads to heat exchanger, below main air draft control valve, add deflector, part baking oven exhaust water conservancy diversion, in main exhaust, other drying baker secondary return air controlling opening of valve in printing process except last baking oven strengthen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680691.5U CN203600771U (en) | 2013-10-26 | 2013-10-26 | Energy-saving drying device for printing press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680691.5U CN203600771U (en) | 2013-10-26 | 2013-10-26 | Energy-saving drying device for printing press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203600771U true CN203600771U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320680691.5U Expired - Fee Related CN203600771U (en) | 2013-10-26 | 2013-10-26 | Energy-saving drying device for printing press |
Country Status (1)
| Country | Link |
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| CN (1) | CN203600771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859292A (en) * | 2015-05-07 | 2015-08-26 | 北京印刷学院 | Drying system of intaglio printing press |
| CN105202905A (en) * | 2015-09-13 | 2015-12-30 | 杨峥雄 | Guidable valve and adjusting method |
-
2013
- 2013-10-26 CN CN201320680691.5U patent/CN203600771U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859292A (en) * | 2015-05-07 | 2015-08-26 | 北京印刷学院 | Drying system of intaglio printing press |
| CN104859292B (en) * | 2015-05-07 | 2017-12-12 | 北京印刷学院 | A kind of intaglio printing press drying system |
| CN105202905A (en) * | 2015-09-13 | 2015-12-30 | 杨峥雄 | Guidable valve and adjusting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20191026 |