CN214774631U - Clean, efficient and energy-saving natural gas heating hot air system for aluminum-plastic composite film - Google Patents
Clean, efficient and energy-saving natural gas heating hot air system for aluminum-plastic composite film Download PDFInfo
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- CN214774631U CN214774631U CN202120608972.4U CN202120608972U CN214774631U CN 214774631 U CN214774631 U CN 214774631U CN 202120608972 U CN202120608972 U CN 202120608972U CN 214774631 U CN214774631 U CN 214774631U
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- air
- pipeline
- hot air
- oven
- heat exchanger
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000010438 heat treatment Methods 0.000 title claims abstract description 34
- 239000003345 natural gas Substances 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 239000002918 waste heat Substances 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
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Abstract
The utility model discloses an aluminum-plastic composite membrane is with clean energy-efficient natural gas heating hot air system sets up heat exchanger in the air outlet department of every oven, and the new trend gets into after heat exchanger preheats and preheats the new trend pipeline, preheats and is provided with new trend heating interchanger between new trend pipeline and the hot-blast pipeline, fires burning furnace and is connected with preheating new trend interchanger through air-out pipeline and air-supply line, and the hot-blast process exhaust gas outlet of air outlet is discharged after heat exchanger exchanges. The combustion furnace and the split-level heat exchanger form a closed loop system through an air inlet pipeline and an air outlet pipeline of the combustion furnace, and clean air supply of a hot air system is realized. The hot air at the air outlet is recovered and preheated, the fresh air enters the hot air pipeline after being heated by the heat exchanger on the preheated fresh air pipeline, the temperature of the air inlet of each oven is adjusted by the hot air pipeline through the proportional valve, and the fresh air is sent into each oven through the air feeder, so that the working temperature can be reached in only 15 minutes.
Description
Technical Field
The utility model relates to a clean energy-efficient natural gas heating hot air system for 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. In the defect that the natural gas heating hot air system for the common aluminum-plastic composite film is not high in efficiency, carbon particles can be generated due to combustion of natural gas, and the carbon particles are easily mixed in a composite layer after entering the hot air system, so that the surface flaws of a composite product are caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome among the prior art commonly used natural gas heating air heating system for the plastic-aluminum complex film, because the natural gas burning can produce the carbon granule, the carbon granule gets into and is mingled with in the composite bed easily behind the air heating system, causes compound product surface flaw, provides a clean energy-efficient natural gas heating air heating system for the plastic-aluminum complex film.
In order to solve the technical problem, the utility model provides a following technical scheme:
a clean, efficient and energy-saving natural gas heating hot air system for an aluminum-plastic composite film comprises a plurality of drying ovens which are sequentially arranged, wherein a heat exchanger is arranged at an air outlet of each drying oven, fresh air enters a preheating fresh air pipeline after being preheated by the heat exchangers, a fresh air heating heat exchanger is arranged between the preheating fresh air pipeline and a hot air pipeline, and a combustion furnace is connected with the fresh air heating heat exchanger through an air outlet pipeline and an air inlet pipeline; the air inlet fan is connected with the air inlet of each oven through a pipeline; the hot air at the air outlet is exchanged by the heat exchanger and then discharged through the waste gas outlet.
Furthermore, a proportional valve is arranged between the hot air pipeline and the air inlet fan of each oven, and a fresh air port is arranged on the proportional valve. The working temperature of each oven is adjusted by adjusting the proportion of hot air and fresh air entering each oven through the proportional valve.
Furthermore, the oven in the low-temperature area adopts the pipeline with the opening to collect the waste heat emitted by the oven and the drying tunnel opening to preheat the fresh air, so that the working temperature of the oven motor and other auxiliary equipment can be effectively reduced, and the service life of the equipment can be prolonged.
A closed loop system is formed by the combustion furnace and the split-level heat exchanger through an air inlet pipeline and an air outlet pipeline of the combustion furnace, so that hot air in the combustion furnace enters the heat exchanger through the air outlet pipeline, heat is exchanged and recovered, and then fresh air is heated and preheated, so that carbon particles generated by natural gas are completely isolated outside the hot air system, and clean air supply of the hot air system is realized.
The utility model discloses the beneficial effect who reaches is: compared with the prior art, the main innovation point is that the combustion furnace and the split-level heat exchanger form a closed-loop system through an air inlet pipeline and an air outlet pipeline of the combustion furnace, hot air in the combustion furnace enters the heat exchanger through the air outlet pipeline, heat is exchanged and recovered, and then fresh air is heated and preheated, so that carbon particles generated by natural gas are completely isolated outside a hot air system, and clean air supply of the hot air system is realized; the heat energy of the air outlet of each oven is recovered by the waste heat of the heat exchanger and then is used as the preheating fresh air of the oven to be sent into the heating device, the preheating fresh air is clean air, and no organic solvent exists, so that potential safety hazards which are possibly generated after the organic solvent enters the heating device can be avoided; for the oven with higher working temperature, because the heat energy of the air outlet of the oven is higher, the requirement on the heating power of the oven can be greatly reduced after the heat exchanger is recycled, in addition, the working temperature can be reached only in about 15 minutes, and the time is greatly saved.
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 the structural schematic diagram of the clean, efficient and energy-saving natural gas heating hot air system for the aluminum-plastic composite film of the utility model.
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 fig. 1, a clean, efficient and energy-saving natural gas heating hot air system for an aluminum-plastic composite film comprises a # 1 oven 1, a # 2 oven 2, a # 3 oven 3 and a # 4 oven 4 which are sequentially arranged, wherein a heat exchanger 7 is arranged at an air outlet 5 of each oven, fresh air enters a preheating fresh air pipeline 13 after being preheated by the heat exchanger 7, a fresh air heating heat exchanger 14 is arranged between the preheating fresh air pipeline 13 and a hot air pipeline 15, and a combustion furnace 8 is connected with the fresh air heating heat exchanger 14 through an air outlet pipeline 16 and an air inlet pipeline 17; the air inlet fan 9 is connected with the air inlet 6 of each oven through a pipeline; the hot air at the air outlet 5 is exchanged by the heat exchanger 7 and then discharged through the waste gas outlet 12. A proportional valve 10 is arranged between the hot air pipeline 15 and the air inlet fan 9 of each oven, and a fresh air port 11 is arranged on the proportional valve 10. All the drying ovens are connected through pipelines. The air outlet of the pipeline connected between the drying ovens is the fresh air of any one drying oven. The 1# oven is a low-temperature area, and fresh air is preheated by adopting waste heat emitted by the oven and the drying tunnel opening and collected by a pipeline with an opening.
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 (5)
1. A clean, efficient and energy-saving natural gas heating hot air system for an aluminum-plastic composite film is characterized by comprising a plurality of drying ovens which are sequentially arranged, wherein a heat exchanger is arranged at an air outlet of each drying oven, fresh air enters a preheating fresh air pipeline after being preheated by the heat exchangers, a fresh air heating heat exchanger is arranged between the preheating fresh air pipeline and a hot air pipeline, and a combustion furnace is connected with the fresh air heating heat exchanger through an air outlet pipeline and an air inlet pipeline; the air inlet fan is connected with the air inlet of each oven through a pipeline; the hot air at the air outlet is exchanged by the heat exchanger and then discharged through the waste gas outlet.
2. The clean, efficient and energy-saving natural gas heating hot air system for the aluminum-plastic composite film as claimed in claim 1, wherein a proportional valve is arranged between the hot air pipeline and the air inlet fan of each oven, and a fresh air port is arranged on the proportional valve.
3. The clean, efficient and energy-saving natural gas heating hot air system for the aluminum-plastic composite film according to claim 1, wherein the oven in the low temperature region is preheated by fresh air by using a pipeline with an opening to collect waste heat emitted from the oven and the opening of the drying tunnel.
4. The clean, efficient and energy-saving natural gas heating and hot air system for the aluminum-plastic composite film according to claim 3, wherein the heat exchanger arranged at the air outlet and the fresh air heating exchanger are both split-level heat exchangers.
5. The clean, efficient and energy-saving natural gas heating hot air system for the aluminum-plastic composite film as claimed in claim 4, wherein the combustion furnace and the fresh air heating exchanger form a closed loop system through an air inlet pipeline and an air outlet pipeline of the combustion furnace, so that hot air in the combustion furnace enters the fresh air heating exchanger through the air outlet pipeline, heat is exchanged and recovered, and then the fresh air is heated and preheated, so that carbon particles generated by natural gas are completely isolated outside the hot air system, and clean air supply of the hot air system is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608972.4U CN214774631U (en) | 2021-03-25 | 2021-03-25 | Clean, efficient and energy-saving natural gas heating hot air system for aluminum-plastic composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608972.4U CN214774631U (en) | 2021-03-25 | 2021-03-25 | Clean, efficient and energy-saving natural gas heating hot air system for aluminum-plastic composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214774631U true CN214774631U (en) | 2021-11-19 |
Family
ID=78667106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120608972.4U Active CN214774631U (en) | 2021-03-25 | 2021-03-25 | Clean, efficient and energy-saving natural gas heating hot air system for aluminum-plastic composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214774631U (en) |
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2021
- 2021-03-25 CN CN202120608972.4U patent/CN214774631U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231201 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. |
|
| TR01 | Transfer of patent right |