CN214791925U - Efficient energy-saving electric heating hot air system for aluminum-plastic composite film - Google Patents
Efficient energy-saving electric heating hot air system for aluminum-plastic composite film Download PDFInfo
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- CN214791925U CN214791925U CN202120608963.5U CN202120608963U CN214791925U CN 214791925 U CN214791925 U CN 214791925U CN 202120608963 U CN202120608963 U CN 202120608963U CN 214791925 U CN214791925 U CN 214791925U
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- oven
- heat exchanger
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- hot air
- aluminum
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- 239000002131 composite material Substances 0.000 title claims description 9
- 238000005485 electric heating Methods 0.000 title claims description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 239000002912 waste gas Substances 0.000 claims abstract description 13
- 239000002918 waste heat Substances 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims description 18
- 239000003960 organic solvent Substances 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model discloses an energy-efficient electrical heating hot air system is used to plastic-aluminum complex film, including the oven that a plurality of set gradually, the air outlet department of every oven is provided with heat exchanger, and the new trend is sent into the air intake of oven through the forced draught blower after heating through the precious heating again after heat exchanger preheats, and the hot-blast process waste gas outlet of air outlet is discharged after heat exchanger exchanges. Compared with the prior art, the main innovation point is that the heat energy of the air outlet of each oven is exchanged through the heat exchanger to preheat the fresh air, the safety risk possibly generated after the organic solvent in the waste gas enters the heating device is avoided, the temperature of the waste gas can be reduced to be within the range of 30-45 ℃, the waste heat recovery utilization rate is higher, the heating function of a high-temperature region is reduced from 48kw to 42kw, the heating load of the heating device is effectively reduced, and the heating time is shortened from 1 hour to about 30 minutes.
Description
Technical Field
The utility model relates to an energy-efficient electrical heating hot air system is used to plastic-aluminum complex film.
Background
As shown in figure 1, the existing electric heating hot air system for the aluminum-plastic composite film is generally sequentially provided with 3-4 drying ovens, and the temperature of each drying oven is 60-150 ℃ for the first drying oven, 70-180 ℃ for the second drying oven, 80-220 ℃ for the third drying oven and air cooling for the fourth drying oven. When the pipelines are distributed, the return air inlet of the fourth oven is generally used as preheated air to be sent into the residual heat compensation third oven for air inlet in the third oven heater, the return air inlet of the third oven is used as preheated air to be sent into the residual heat compensation second oven for air inlet in the second oven heater, and the return air inlet of the second oven is used as preheated air to be sent into the residual heat compensation first oven for air inlet in the first oven heater, the main problem of the recovery mode is that the third oven has the highest working temperature of 220 ℃, and because the fourth oven is not heated for cooling the ovens, the temperature of hot air coming out of the return air inlet is low, so that the power requirement on the heating oven of the third oven is harsh, the power of more than 48KW is generally needed, and each oven needs about 1 hour when reaching the working temperature, in addition, because the return air is accompanied by an organic solvent, if reaching a concentration extreme value, the risk of burning explosion exists in the heating ovens, safety accidents are easy to occur.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome among the prior art defect that the plastic-aluminum complex film electrical heating hot air system commonly used efficiency is not high, the security is poor, provide a high-efficient energy-conserving electrical heating hot air system for plastic-aluminum complex film, and eliminated the potential safety hazard that probably takes place in the production.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides an energy-efficient electrical heating hot air system for plastic-aluminum complex film, includes the oven that a plurality of set gradually, and the air outlet department of every oven is provided with heat exchanger, and the new trend is sent into the air intake of oven through the forced draught blower after heating through heat exchanger preheats the back again, and the hot-blast process waste heat recovery back of air outlet is discharged through the exhaust outlet. Preferably, the heat exchanger is a split-bed heat exchanger.
Furthermore, a proportional valve is arranged on a pipeline between the heating device and the air feeder, the proportion of hot air and fresh air can be adjusted through the proportional valve, and the temperature of the oven can be accurately controlled.
Furthermore, the drying ovens in the low-temperature area are collected by pipelines with openings, and absorb heat emitted by the drying ovens and drying tunnel openings to preheat fresh air, so that the working temperature of a drying oven motor and other auxiliary equipment can be effectively reduced, and the service life of the equipment is prolonged.
The air outlet adopts split-level heat exchanger to preheat the new trend to avoided air outlet waste gas to get into the oven once more, the organic solvent that leads to accumulates concentration too high and influence the volatilization efficiency of organic solvent in the compound glue in the oven, thereby effectively guaranteed compound quality. Change traditional mode of compensating the low temperature district heat energy through the high temperature district return air, because contain a certain amount of organic solvent in the oven return air, when the return air passes through the heating treasured heating, if when organic solvent concentration reaches the extreme value, have the risk that produces the incident.
Clean new trend can fully retrieve the heat energy in the oven is aired exhaust through the splitlevel heat exchanger, and the waste gas that mix with organic solvent can directly be discharged to environmental protection equipment and handle, avoids the organic solvent in the waste gas to get into the safety risk that probably produces behind the heating is precious. Because the optimal working temperature of the environment-friendly treatment equipment is below 45 ℃, the temperature of the waste gas after heat exchange can be reduced to be within the range of 30-45 ℃, the treatment effect of the environment-friendly treatment equipment can be fully exerted, and the emission reaching the standard is realized.
In addition, each oven adopts 1 hot-blast air supply mode of 1 air inlet and 1 air exhaust, and the control of oven business turn over wind is more convenient, more effective, more accurate, adopts independent waste heat recovery and utilizes's mode, and waste heat recovery utilization rate is higher, and high temperature region heating power falls to 42kw from 48kw, has effectively reduced the precious heating load of heating, and the heating time also shortens to about 30 minutes from original 1 hour.
The utility model discloses the beneficial effect who reaches is: for prior art's main innovation point for sending into the heating treasured as the new trend of preheating of this oven behind the heat exchanger waste heat recovery with the heat energy of the air-out of every oven, clean new trend can fully retrieve the heat energy in the oven is aired exhaust through the splitlevel heat exchanger, and the waste gas that is mingled with organic solvent can directly be discharged to environmental protection equipment and is handled, avoids the organic solvent in the waste gas to get into the safety risk that probably produces behind the heating treasured. Because the optimal working temperature of the environment-friendly treatment equipment is below 45 ℃, the temperature of the waste gas after heat exchange can be reduced to be within the range of 30-45 ℃, the treatment effect of the environment-friendly treatment equipment can be fully exerted, and the emission reaching the standard is realized. By adopting an independent waste heat recycling mode, the waste heat recycling rate is higher, the heating function of a high-temperature area is reduced from 48kw to 42kw, the heating load of a heater is effectively reduced, and the heating time is shortened from 1 hour to about 30 minutes.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an electrical heating conventional hot air system for an aluminum-plastic composite film;
FIG. 2 is a schematic structural diagram of the high-efficiency energy-saving electric heating hot air system for the aluminum-plastic composite film of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1
As shown in figure 1, the high-efficiency energy-saving electric heating hot air system for the aluminum-plastic composite film comprises a No. 1 drying oven 1, a No. 2 drying oven 2, a No. 3 drying oven 3 and a No. 4 drying oven 4 which are sequentially arranged, wherein a heat exchanger 7 is arranged at an air outlet 5 of each drying oven, fresh air is preheated by the heat exchanger 7, then is heated by a heater 8 and then is sent into an air inlet 6 of each drying oven through an air feeder 9, and hot air at the air outlet 5 is exchanged by the heat exchanger 7 and then is discharged through a waste gas outlet 12. The temperature of the waste gas can be reduced to below 45 ℃, which is the most suitable treatment temperature for environment-friendly external treatment equipment.
A proportional valve 10 is arranged on a pipeline between the heater 8 and the blower 9, a fresh air inlet 11 is arranged on the proportional valve 10, and the fresh air and hot air in the heater form hot air required by the process temperature through the proportional valve and enter the oven.
The 1# oven has the working temperature of about 60-150 ℃ in a low-temperature area, a pipeline with an opening is arranged above each oven, the fresh air of the 1# oven is preheated by absorbing the heat emitted by the ovens and the drying tunnel opening, the working temperature of an oven motor and other auxiliary equipment can be effectively reduced, and the service life of the system is prolonged.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides an energy-efficient electrical heating hot air system for plastic-aluminum complex film, its characterized in that, includes the oven that a plurality of set gradually, the air outlet department of every oven is provided with heat exchanger, and the new trend sends into the air intake of oven through the forced draught blower after heating through heat exchanger preheats the back again, and the hot-blast process waste gas outlet after heat exchanger exchanges of air outlet discharges.
2. The efficient energy-saving electric heating hot air system for the aluminum-plastic composite film as claimed in claim 1, wherein a proportional valve is arranged on a pipeline between the heater and the blower, and the proportion of hot air and fresh air is adjusted through the proportional valve to control the temperature of the oven.
3. The efficient energy-saving electric heating hot air system for the aluminum-plastic composite film according to claim 1, wherein the ovens in the low-temperature region adopt pipelines with openings to collect waste heat emitted from the ovens and the drying tunnel openings to preheat fresh air.
4. The efficient energy-saving electric heating hot air system for the aluminum-plastic composite film according to claim 3, wherein the heat exchanger is a split-level heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608963.5U CN214791925U (en) | 2021-03-25 | 2021-03-25 | Efficient energy-saving electric heating hot air system for aluminum-plastic composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608963.5U CN214791925U (en) | 2021-03-25 | 2021-03-25 | Efficient energy-saving electric heating hot air system for aluminum-plastic composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214791925U true CN214791925U (en) | 2021-11-19 |
Family
ID=78667100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120608963.5U Active CN214791925U (en) | 2021-03-25 | 2021-03-25 | Efficient energy-saving electric heating hot air system for aluminum-plastic composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214791925U (en) |
-
2021
- 2021-03-25 CN CN202120608963.5U patent/CN214791925U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231130 Address after: No.55 rongtongdao Road, Xishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee after: JIANGSU LEATER GREEN PACKAGING Corp.,Ltd. Address before: 214000 Xinan community, Qianqiao street, Huishan District, Wuxi City, Jiangsu Province Patentee before: Jiangsu Hua Gu new materials Co.,Ltd. |