CN210337223U - Heating device of gravure printing machine - Google Patents
Heating device of gravure printing machine Download PDFInfo
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- CN210337223U CN210337223U CN201920635036.5U CN201920635036U CN210337223U CN 210337223 U CN210337223 U CN 210337223U CN 201920635036 U CN201920635036 U CN 201920635036U CN 210337223 U CN210337223 U CN 210337223U
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Abstract
The utility model relates to an intaglio press heating device, including the heating cabinet, heat transfer case and waste gas retrieval and utilization case, the waste gas retrieval and utilization case, heating cabinet and heat transfer case concatenate the intercommunication in proper order, the inside heat transfer core that is equipped with of heat transfer case, the heat transfer case is equipped with the refrigerant flow inlet end intercommunication of new trend entry and heat transfer core, the refrigerant flow outlet end and the heating cabinet intercommunication of heat transfer core, the heat medium flow inlet end of heat transfer core communicates through the high concentration volatility organic matter waste gas air exit of first waste gas air-supply line with the stoving case, the inside heating element that is equipped with of heating cabinet, the air intake of waste gas retrieval and utilization case communicates through the low concentration volatility organic matter waste gas air exit of second waste gas air-supply line with the stoving case, the air outlet of waste gas retrieval and utilization case passes through the hot-blast entry intercommunication of hot-. The utility model discloses can improve the effect in order to reach energy-conservation, reduce thermal pollution to the thermal retrieval and utilization efficiency of waste gas, avoid heating device explosion danger.
Description
Technical Field
The utility model belongs to the technical field of intaglio printing ink is dried, especially, relate to an intaglio printing machine heating device.
Background
In the intaglio printing process, in order to dry printing ink, all set up heating cabinet and stoving case on the gravure press, the air of normal atmospheric temperature is after the heating cabinet heating, and hot-air blows off through the tuyere in the drying cabinet, blows to the surface of printing material for the printing ink on stoving printing material surface, this process can consume a large amount of heats.
The heating cabinet structure of current gravure press does: the normal temperature air enters the heating box through the air inlet, the normal temperature air is heated to the working temperature through the heating element in the heating box, the gravure press generally needs hot air of 60-80 ℃, and the hot air is blown to the air inlet of the drying box through the fan. And an air outlet is arranged on the side surface of the drying box and used for pumping the volatile organic waste gas with certain concentration in the drying box out of the drying box. In order to achieve the purpose of energy conservation, the exhaust pipeline is connected with an air inlet of the heating box through a bypass pipeline, and a part of exhausted hot waste gas can be sucked into the heating box to form return air for heat utilization under the action of negative pressure of the air feeder.
Among the existing equipment, the air return of stoving case relies on air door, air inlet air door and retrieval and utilization air door of airing exhaust completely to come coordinated control, and when the air door can't be coordinated, the new trend that probably appears heating is directly discharged by the exhaust fan, causes not but can't reach energy-conserving effect, wastes the energy more on the contrary.
In addition, the existing equipment can not recycle too much hot air because of: firstly, volatile organic waste gas with a certain concentration can directly influence the volatilization speed of a solvent in the ink, and when the volatile organic waste gas contained in the waste gas reaches a saturated concentration, the solvent in the ink can not volatilize in theory; secondly, when too much volatile organic compounds waste gas is recycled to the electric heating box, the heating box is easy to explode. The energy-saving effect of the existing equipment is not obvious, and potential explosion risks of the heating box exist.
Disclosure of Invention
The utility model aims to solve the technical problem that a photogravure press heating device is provided, improve waste gas heat and recycle for reaching energy-conservation, reducing thermal pollution's effect, avoid heating device explosion danger.
The technical scheme adopted by the utility model for solving the technical problems is to provide a heating device of the photogravure press, which comprises a heating box, a heat exchange box and a waste gas recycling box, wherein the waste gas recycling box, the heating box and the heat exchange box are sequentially connected in series and communicated, a heat exchange core is arranged in the heat exchange box, the heat exchange box is provided with a fresh air inlet, the fresh air inlet is communicated with a refrigerant flow air inlet end of the heat exchange core, a refrigerant flow air outlet end of the heat exchange core is communicated with the heating box, a heat medium flow air inlet end of the heat exchange core is communicated with a high-concentration volatile organic matter waste gas exhaust outlet of the drying box through a first waste gas air inlet pipe, a heating element is arranged in the heating box, an air inlet of the waste gas recycling box is communicated with a low-concentration volatile organic matter waste gas exhaust outlet of the drying box through a second waste gas inlet pipe, an air outlet of the waste gas recycling, an air feeder is arranged in the hot air delivery pipe.
The heat exchange core adopts a cross-flow type hydrophilic aluminum foil heat exchange core.
The heat medium flow air outlet end of the heat exchange core is communicated with the main exhaust pipe through an exhaust gas exhaust pipe, and the exhaust gas exhaust pipe is provided with a first air valve.
The heating element is controlled by a temperature controller, and a hot air temperature sensor is arranged in the hot air conveying pipe and connected to the temperature controller.
And the second waste gas air inlet pipe is provided with a second air valve.
The hot air delivery pipe is provided with a third air valve.
First waste gas air-supply line, second waste gas air-supply line and hot-blast conveyer pipe are respectively through high concentration volatile organic compounds waste gas air exit, low concentration volatile organic compounds waste gas air exit and the hot-blast entry intercommunication of hose and stoving case.
Advantageous effects
The utility model discloses in, can discharge two kinds of waste gas that volatile organic matter content is higher relatively and relatively lower respectively to the intaglio press stoving case of new design, improve current heater structure, can enough directly carry out direct retrieval and utilization to stoving case exhaust low concentration volatile organic matter waste gas, can carry out the heat transfer utilization to the heat that stoving case exhaust high concentration volatile organic matter waste gas contains again, improved heating device on the one hand and contained thermal utilization efficiency in order to reach energy-conservation to stoving case exhaust waste gas, reduce thermal pollution's effect, on the other hand can retrieval and utilization low concentration volatile organic matter waste gas pertinence, the danger that heating device exists the explosion has effectively been avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is the structure schematic diagram is looked at to the main of the utility model discloses high concentration volatile organic compounds waste gas route equipment.
Figure 3 is the utility model discloses the left side of high concentration volatile organic compounds waste gas route equipment looks at the schematic diagram.
Fig. 4 is the structure diagram of the main view of the low concentration volatile organic compounds exhaust path device of the present invention.
Fig. 5 is a left side view structure diagram of the hot air conveying path device of the present invention.
Fig. 6 is a schematic view of the overhead structure of the hot air conveying path device of the present invention.
Fig. 7 is a schematic structural view of the drying box.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
A heating apparatus of an intaglio printing press, as shown in fig. 1, is provided corresponding to each set of intaglio printing units of the intaglio printing press for supplying hot air for drying a printing material to drying boxes of each set of intaglio printing units. Fig. 7 shows a novel drying box 7, which is not claimed in the present invention, and its specific structure is not described in detail herein, and it is characterized in that the high-concentration volatile organic compound waste gas and the low-concentration volatile organic compound waste gas generated in the drying box 7 can be collected respectively, and are discharged through the high-concentration volatile organic compound waste gas exhaust outlet 8 and the low-concentration volatile organic compound waste gas exhaust outlet 11, wherein the concentration of the volatile organic compound in the high-concentration volatile organic compound waste gas is more than twice of the low-concentration volatile organic compound waste gas.
As shown in fig. 1, the heating device comprises a heating box 1, a heat exchange box 2 and a waste gas recycling box 3, wherein the waste gas recycling box 3, the heating box 1 and the heat exchange box 2 are sequentially connected in series from top to bottom.
As shown in fig. 2 and 3, a heat exchange core 4 is arranged inside the heat exchange box 2, and the heat exchange core 4 is a cross-flow hydrophilic aluminum foil heat exchange core. The bottom of the heat exchange box 2 is provided with a fresh air inlet 5, the fresh air inlet 5 is communicated with the air inlet end of the refrigerant flow of the heat exchange core 4, and the air outlet end of the refrigerant flow of the heat exchange core 4 is communicated with the heating box 1. The air inlet end of the heat medium flow of the heat exchange core 4 is communicated with the high-concentration volatile organic compound waste gas exhaust outlet 8 of the drying box 7 sequentially through a first waste gas air inlet pipe 6 and a hose 20. The outlet end of the heat medium flow of the heat exchange core 4 is communicated with the main exhaust pipe 16 through an exhaust gas exhaust pipe 15, and the exhaust gas exhaust pipe 15 is provided with a first air valve 21.
Normal-temperature fresh air enters a refrigerant flow of the heat exchange core 4 of the heat exchange box 2 from a fresh air inlet 5 and passes through the cross-flow type hydrophilic aluminum foil heat exchange core from bottom to top. The high-concentration volatile organic compound waste gas collected in the drying box 7 sequentially passes through the high-concentration volatile organic compound waste gas exhaust outlet 8, the hose 20 and the first waste gas air inlet pipe 6 to enter a heat medium flow of the heat exchange core 4 in the heat exchange box 2, passes through the cross-flow type hydrophilic aluminum foil heat exchange core from right to left, and exchanges heat with the normal-temperature fresh air without changing the quality. After heat exchange, the temperature of the normal-temperature fresh air rises, the temperature of the high-temperature waste gas falls, heat recycling is realized, and heat pollution to the atmosphere can be effectively reduced. Fresh air enters the heating box 1 after being subjected to heat exchange by the heat exchange box 2. After the high-concentration volatile organic compound waste gas is subjected to heat exchange through the heat exchange box 2, the high-concentration volatile organic compound waste gas is extracted from the left side of the heat exchange box 2, enters the waste gas exhaust pipe 15, is finally extracted into the main exhaust pipe 16, and is exhausted outdoors through the main exhaust fan of the gravure press, and the total exhaust volume of the gravure press unit is determined by controlling the size of an exhaust air door through the first air valve 21 in the process.
The preferred scheme of the waste gas of following main exhaust pipe 16 exhaust is to send waste gas to VOC recovery unit, recycles volatile organic compounds, further improves the availability factor of the energy, further reduces the pollution to the environment.
As shown in fig. 4, the air inlet on the left side of the exhaust gas recycling box 3 is communicated with the low concentration volatile organic compound exhaust gas outlet 11 of the drying box 7 sequentially through a second exhaust gas inlet pipe 10 and a hose 20, and the second exhaust gas inlet pipe 10 is provided with a second air valve 18. The low concentration volatile organic compounds waste gas collected in the drying box 7 sequentially passes through the low concentration volatile organic compounds waste gas exhaust outlet 11, the hose 20 and the second waste gas air inlet pipe 10 to enter the waste gas recycling box 3, and is mixed with the fresh air entering the waste gas recycling box 3 from the heating box 1.
As shown in fig. 5 and 6, the air outlet at the top of the exhaust gas recycling box 3 is communicated with the hot air inlet 13 of the drying box 7 sequentially through a hot air conveying pipe 12 and a hose 20, a blower 14 is arranged in the hot air conveying pipe 12, a third air valve 19 is arranged on the hot air conveying pipe 12 between the blower 14 and the hose 20, and a hot air temperature sensor 17 is positioned between the blower 14 and the third air valve 19. The high-temperature hot air containing a small amount of volatile organic compounds and gathered in the exhaust gas recycling box 3 is pumped out by the air blower 14 and is sent to the hot air inlet 13 of the drying box 7, and then enters the drying box 7 for drying the printing ink of the printing material.
The heating device of the photogravure press can directly recycle the low-concentration volatile organic waste gas discharged by the drying box and can also exchange heat for utilizing the heat contained in the high-concentration volatile organic waste gas discharged by the drying box. On the one hand, the utilization efficiency of heat contained in waste gas discharged by the drying box by the heating device is improved so as to achieve the effects of saving energy and reducing thermal pollution, on the other hand, the waste gas with low-concentration volatile organic compounds can be recycled in a targeted manner, and the danger of explosion of the heating device is effectively avoided.
Claims (7)
1. The utility model provides an intaglio press heating device, includes heating cabinet (1), heat transfer case (2) and waste gas retrieval and utilization case (3), its characterized in that: waste gas retrieval and utilization case (3), heating cabinet (1) and heat transfer case (2) concatenate the intercommunication in proper order, heat transfer case (2) inside is equipped with heat transfer core (4), heat transfer case (2) are equipped with fresh air entry (5) and the refrigerant flow inlet end intercommunication of heat transfer core (4), the refrigerant flow of heat transfer core (4) is given vent to anger the end and is communicate with heating cabinet (1), the heat medium flow inlet end of heat transfer core (4) is through high concentration volatility organic matter waste gas air exit (8) intercommunication of first waste gas air-supply line (6) and stoving case (7), heating cabinet (1) inside is equipped with heating element (9), the air intake of waste gas retrieval and utilization case (3) is through second waste gas air-supply line (10) and the low concentration volatility organic matter waste gas exhaust outlet (11) intercommunication of stoving case (7), the air outlet of waste gas retrieval and utilization case (3) is through hot-blast conveyer pipe (12) and stoving case (7) hot-blast entry (13) even intercommunication And a blower (14) is arranged in the hot air conveying pipe (12).
2. The intaglio printing press heating device according to claim 1, characterized in that: the heat exchange core (4) adopts a cross-flow type hydrophilic aluminum foil heat exchange core.
3. The intaglio printing press heating device according to claim 1, characterized in that: the heat medium flow air outlet end of the heat exchange core (4) is communicated with a main air exhaust pipe (16) through an exhaust air exhaust pipe (15), and the exhaust air exhaust pipe (15) is provided with a first air valve (21).
4. The intaglio printing press heating device according to claim 1, characterized in that: the heating element (9) is controlled by a temperature controller, a hot air temperature sensor (17) is arranged inside the hot air conveying pipe (12), and the hot air temperature sensor (17) is connected to the temperature controller.
5. The intaglio printing press heating device according to claim 1, characterized in that: the second waste gas inlet pipe (10) is provided with a second air valve (18).
6. The intaglio printing press heating device according to claim 1, characterized in that: the hot air delivery pipe (12) is provided with a third air valve (19).
7. The intaglio printing press heating device according to claim 1, characterized in that: first waste gas air-supply line (6), second waste gas air-supply line (10) and hot-blast conveyer pipe (12) are respectively through high concentration volatile organic compounds waste gas air exit (8), low concentration volatile organic compounds waste gas air exit (11) and hot-blast entry (13) intercommunication of hose (20) and stoving case (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635036.5U CN210337223U (en) | 2019-05-06 | 2019-05-06 | Heating device of gravure printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635036.5U CN210337223U (en) | 2019-05-06 | 2019-05-06 | Heating device of gravure printing machine |
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| Publication Number | Publication Date |
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| CN210337223U true CN210337223U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920635036.5U Active CN210337223U (en) | 2019-05-06 | 2019-05-06 | Heating device of gravure printing machine |
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| CN (1) | CN210337223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798369A (en) * | 2022-04-21 | 2022-07-29 | 苏州兆和环能科技有限公司 | Coating machine drying oven and coating machine waste gas recovery system |
-
2019
- 2019-05-06 CN CN201920635036.5U patent/CN210337223U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798369A (en) * | 2022-04-21 | 2022-07-29 | 苏州兆和环能科技有限公司 | Coating machine drying oven and coating machine waste gas recovery system |
| CN114798369B (en) * | 2022-04-21 | 2024-06-04 | 苏州兆和环能科技有限公司 | Coating machine oven and coating machine waste gas recovery system |
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