CN202718001U - Hot air drying system - Google Patents
Hot air drying system Download PDFInfo
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- CN202718001U CN202718001U CN 201220441026 CN201220441026U CN202718001U CN 202718001 U CN202718001 U CN 202718001U CN 201220441026 CN201220441026 CN 201220441026 CN 201220441026 U CN201220441026 U CN 201220441026U CN 202718001 U CN202718001 U CN 202718001U
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- air
- hot air
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Abstract
The utility model discloses a hot air drying system which comprises hot air steam hoods and a main air supplying pipeline. A circulating fan absorbs fresh air into the main air supplying pipeline, a heating device heats the fresh air to temperature needed by toilet paper to be dried, and then heated air enters the two steam hoods through branch air supplying pipelines, and is injected into paper sheets in a high speed through jet nozzles of tuyeres. A strong convective drying effect is formed between hot air and the paper sheets, and damp and hot air after heat exchange is sucked through a gap among the tuyeres. The damp and hot air in a dry part steam hood is high in temperature, and small in humidness, enters the main air supplying pipeline through a dry-hot air exhaust pipeline and mixes with the fresh air to be reutilized. Though the damp and hot air in a wet part steam hood is high in temperature, the damp and hot air is big in humidness, and therefore the damp and hot air in the wet part steam hood forced into a first heat exchanger to preheat the fresh air, and meanwhile temperature of exhausted air is reduced, and influence on the environment is reduced. Through the above structure hot air exhausted by the hot air steam hood is utilized fully, and therefore steam consumption needed by the heating device is greatly reduced, and production cost is reduced.
Description
Technical field
The utility model relates to a kind of paper grade (stock) equipment, particularly relates to a kind of hot air drying system that is used with drying cylinder.
Background technology
The high speed toilet paper machine of at present China's production, its drying system is included in hot-air vapor cover and the total air supply duct that the drying cylinder top is installed, hot-air vapor cover is comprised of two vapour cover unit, each vapour cover unit is equipped with air inlet and exhaust outlet, on total air supply duct heater is installed, total air supply duct is terminal to be connected with the circulating fan air intake, the circulating fan outlet air end is connected with two branch's air supply ducts, two branch's air supply ducts are connected with the air inlet of two vapour covers respectively, circulating fan sucks total air supply duct with new wind, after the heater heating, send into hot-air vapor cover, utilize in the hot-air vapor cover wind-distributing pipe just hot blast send into tuyere, on the nozzle high velocity jet road page on the tuyere, make hot blast and page form strong convective drying effect, then the damp and hot wind after the slit between tuyere is with heat exchange siphons away, drain through exhaust blower, thus paper is dry.Utilize the toilet paper machine of this kind drying system, the speed of a motor vehicle is always high in the steam consumption of 800 ~ 1200m/min, and ton paper steam consumption is mostly more than 3 tons, part even reach 5 tons, and production cost is higher.
Summary of the invention
The technical problems to be solved in the utility model provides the hot air drying system that a kind of and drying cylinder were used, can reduce toilet paper machine ton paper steam consumption.
For solving the problems of the technologies described above, the utility model comprises hot-air vapor cover and total air supply duct, hot-air vapor cover is comprised of cadre's vapour cover and wet end vapour cover, on total air supply duct heater is installed, total air supply duct is terminal to be connected with the circulating fan air intake, the circulating fan outlet air end is connected with two branch's air supply ducts, two branch's air supply ducts are connected air inlet with cadre's vapour cover respectively and are connected with wet end vapour cover, the exhaust outlet of cadre's vapour cover is connected with the hot dry wind exhaust duct, the exhaust outlet of wet end vapour cover is connected with damp and hot wind exhaust duct, its design feature is to be connected with exhaust blower on the damp and hot wind exhaust duct, and the discharge pipe of exhaust blower is connected with the hot fluid entrance of First Heat Exchanger; The cold fluid outlet of First Heat Exchanger is connected with blast pipe, and blast pipe is connected with total air supply duct air intake; The outlet air end of hot dry wind exhaust duct is connected with total air supply duct.
After adopting said structure, hot-air vapor cover is installed in the drying cylinder top, vapour cover near the reel machine end is cadre's vapour cover, another is wet end vapour cover, circulating fan sucks total air supply duct with new wind, it is temperature required that heater is heated to the toilet paper drying with new wind, then enter in the two vapour covers by branch's air supply duct, utilize the wind-distributing pipe in the hot-air vapor cover that hot blast is sent into tuyere, through the nozzle high velocity jet on the tuyere to page, make hot blast and page form strong convective drying effect, then the damp and hot wind after the slit between tuyere is with heat exchange siphons away, wherein the damp and hot air temperature of cadre's vapour cover is higher, humidity is less, in the hot dry wind exhaust duct enters total air supply duct with new wind mixing secondary utilization; Although the damp and hot wind temperature of wet end vapour cover is higher, humidity is larger, so it is passed in the First Heat Exchanger fresh air preheating, has also reduced simultaneously the temperature of discharging wind, reduces the impact on environment.The hot blast of hot-air vapor cover being discharged by said structure takes full advantage of, and greatly reduces the required steam consumption of heater, has reduced production cost.
The junction of described hot dry wind exhaust duct and total air supply duct is between total air supply duct air intake and heater.
Described blast pipe is provided with secondary heater, to new wind secondary preheating.
Be connected with tube connector between described hot dry wind discharge duct and the damp and hot wind discharge duct, tube connector is provided with air door, when the damp and hot rheumatism degree of discharging when cadre's vapour cover is larger, can open air door, damp and hot wind in the hot dry wind discharge duct enters damp and hot wind discharge duct by tube connector, and then discharges from drying system.
Described heater is included in condensed water heat exchanger, middle pressure steam heat exchanger, the high steam heat exchanger that sets gradually along the wind flow direction on total air supply duct, the condensation-water drain of high steam heat exchanger and middle pressure steam heat exchanger is communicated with the hot fluid import of condensed water heat exchanger by pipeline, to mix wind through three grades of heating, to be heated to the toilet paper drying temperature required, further utilize simultaneously the heat of condensed water, reduce the temperature of condensed water, for the processing of subsequent condensation water is provided convenience.
On the described damp and hot wind exhaust duct filter is installed, the paper hair in the damp and hot wind is effectively tackled, prevent that it from entering atmosphere and polluting.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, hot air drying system comprises hot-air vapor cover 1 and total air supply duct 2, hot-air vapor cover 1 is comprised of two vapour covers, wherein the vapour cover near the reel machine end is cadre's vapour cover 11, another is wet end vapour cover 12, on total air supply duct 2 heater is installed, and total air supply duct 2 ends are connected with circulating fan 3 air intakes, circulating fan 3 outlet air ends are connected with two branch's air supply ducts, 4, two branch's air supply ducts 4 and are connected with the air inlet that cadre's vapour cover 11 is connected with wet end vapour cover respectively.Heater is included in condensed water heat exchanger 13, middle pressure steam heat exchanger 14, the high steam heat exchanger 15 that sets gradually along the wind flow direction on total air supply duct 2, the condensation-water drain of high steam heat exchanger 15 and middle pressure steam heat exchanger 14 is communicated with the hot fluid import of condensed water heat exchanger 13 by pipeline, to mix wind through three grades of heating, to be heated to the toilet paper drying temperature required, further utilize simultaneously the heat of condensed water, reduce the temperature of condensed water, for the processing of subsequent condensation water is provided convenience.
The exhaust outlet of cadre's vapour cover 11 is connected with hot dry wind exhaust duct 5, the exhaust outlet of wet end vapour cover 12 is connected with damp and hot wind exhaust duct 6, damp and hot wind exhaust duct 6 outlet air ends are connected with exhaust blower 7, the air outlet of exhaust blower 7 is connected with discharge pipe, and the outlet air end of discharge pipe is connected with the hot fluid entrance of First Heat Exchanger 8; The cold fluid outlet of First Heat Exchanger 8 is connected with blast pipe 19, and blast pipe 19 is connected with total air supply duct 2 air intakes, and blast pipe 19 is provided with secondary heater 16, to new wind secondary preheating; The outlet air end of hot dry wind exhaust duct 5 is connected with total air supply duct 2, and the hot blast temperature that cadre's vapour cover 11 is discharged is higher, and hot blast enters total air supply duct 2 interior and new wind mixing secondary utilizations, can reduce steam consumption.
The pipeline section of damp and hot wind exhaust duct 6 between wet end vapour cover 12 exhaust outlets and exhaust blower 7 is equipped with filter 17, the paper hair in the damp and hot wind effectively can be tackled like this, prevents that it from entering atmosphere and polluting.Hot dry wind exhaust duct 5 is communicated with pipeline section between the filter 17 by tube connector 9 and wet end vapour cover 12 exhaust outlets of damp and hot wind discharge duct, tube connector 9 is provided with air door 10, on the hot dry wind exhaust duct 5 hygrometer is installed, monitor at any time the humidity of hot dry wind exhaust duct 5 interior damp and hot wind, when the damp and hot rheumatism degree in the hot dry wind exhaust duct 5 is larger, can open air door 10, the damp and hot wind of part in the hot dry wind exhaust duct 5 enters damp and hot wind exhaust duct 6 by tube connector 9, and then discharges from drying system.Hot dry wind exhaust duct 5 also is provided with filter 17 on the pipeline section between cadre's vapour cover 11 and the tube connector 9.Also be provided with the air door 10 of control piper break-make on branch's air supply duct 4.
The heat exchanger that the utility model is related, hot fluid does not wherein contact mutually with cold fluid.
Hot-air vapor cover 1 is installed in drying cylinder 18 tops, circulating fan 3 sucks total air supply duct 2 with new wind, it is temperature required that heater is heated to the toilet paper drying with new wind, then enter in the two vapour covers by branch's air supply duct 4, utilize the wind-distributing pipe in the hot-air vapor cover 1 that hot blast is sent into tuyere, through the nozzle high velocity jet on the tuyere to page, make hot blast and page form strong convective drying effect, then the damp and hot wind after the slit between tuyere is with heat exchange siphons away, wherein the damp and hot air temperature of cadre's vapour cover 11 is higher, humidity is less, in hot dry wind exhaust duct 5 enters total air supply duct 2 with new wind mixing secondary utilization; Although the damp and hot wind temperature of wet end vapour cover 12 is higher, humidity is larger, so it is interior to fresh air preheating that it is passed into First Heat Exchanger 8, has also reduced simultaneously the temperature of discharging wind, reduces the impact on environment.The hot blast of hot-air vapor cover 1 being discharged by said structure takes full advantage of, and greatly reduces the required steam consumption of heater, has reduced production cost.
Claims (6)
1. hot air drying system, comprise hot-air vapor cover (1) and total air supply duct (2), hot-air vapor cover (1) is comprised of cadre's vapour cover (11) and wet end vapour cover (12), on total air supply duct (2) heater is installed, total air supply duct (2) is terminal to be connected with circulating fan (3) air intake, circulating fan (3) outlet air end is connected with two branch's air supply ducts (4), two branch's air supply ducts (4) are connected 12 with cadre's vapour cover (11) with wet end vapour cover respectively) air inlet be connected, the exhaust outlet of cadre's vapour cover (11) is connected with hot dry wind exhaust duct (5), the exhaust outlet of wet end vapour cover (12) is connected with damp and hot wind exhaust duct (6), it is characterized in that being connected with on the damp and hot wind exhaust duct (6) exhaust blower (7), the discharge pipe of exhaust blower (7) is connected with the hot fluid entrance of First Heat Exchanger (8); The cold fluid outlet of First Heat Exchanger (8) is connected with blast pipe (19), and blast pipe (19) is connected with total air supply duct (2) air intake; The outlet air end of hot dry wind exhaust duct (5) is connected with total air supply duct (2).
2. hot air drying system according to claim 1 is characterized in that the junction of described hot dry wind exhaust duct (5) and total air supply duct (2) is positioned between total air supply duct (2) air intake and the heater.
3. hot air drying system according to claim 1 is characterized in that described blast pipe (19) is provided with secondary heater (16).
4. hot air drying system according to claim 1 is characterized in that being connected with tube connector (9) between described hot dry wind discharge duct (5) and the damp and hot wind discharge duct (6), and tube connector (9) is provided with air door (10).
5. according to claim 1 to 4 each described hot air drying systems, it is characterized in that described heater is included in upper condensed water heat exchanger (13), middle pressure steam heat exchanger (14), the high steam heat exchanger (15) that sets gradually along the wind flow direction of total air supply duct (2), the condensation-water drain of high steam heat exchanger (15) and middle pressure steam heat exchanger (14) is communicated with by the hot fluid import of pipeline with condensed water heat exchanger (13).
6. hot air drying system according to claim 5 is characterized in that being equipped with on the described damp and hot wind exhaust duct (6) filter (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220441026 CN202718001U (en) | 2012-09-01 | 2012-09-01 | Hot air drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220441026 CN202718001U (en) | 2012-09-01 | 2012-09-01 | Hot air drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718001U true CN202718001U (en) | 2013-02-06 |
Family
ID=47619827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220441026 Expired - Fee Related CN202718001U (en) | 2012-09-01 | 2012-09-01 | Hot air drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718001U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112841700A (en) * | 2021-03-09 | 2021-05-28 | 云南中烟工业有限责任公司 | Tobacco sheet aroma-keeping energy-saving redrying system and using method |
| CN114459232A (en) * | 2022-01-13 | 2022-05-10 | 湖南正鼎环境保护工程有限责任公司 | Yankee air hood hot air system with dehumidifying and energy-saving functions |
-
2012
- 2012-09-01 CN CN 201220441026 patent/CN202718001U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112841700A (en) * | 2021-03-09 | 2021-05-28 | 云南中烟工业有限责任公司 | Tobacco sheet aroma-keeping energy-saving redrying system and using method |
| CN114459232A (en) * | 2022-01-13 | 2022-05-10 | 湖南正鼎环境保护工程有限责任公司 | Yankee air hood hot air system with dehumidifying and energy-saving functions |
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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 |
Granted publication date: 20130206 Termination date: 20200901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |