CN107906857A - A kind of negative pressure dryer - Google Patents
A kind of negative pressure dryer Download PDFInfo
- Publication number
- CN107906857A CN107906857A CN201710983917.1A CN201710983917A CN107906857A CN 107906857 A CN107906857 A CN 107906857A CN 201710983917 A CN201710983917 A CN 201710983917A CN 107906857 A CN107906857 A CN 107906857A
- Authority
- CN
- China
- Prior art keywords
- pressure
- drying
- housing
- negative pressure
- pressure valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
- F26B25/007—Dust filtering; Exhaust dust filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/048—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum in combination with heat developed by electro-magnetic means, e.g. microwave energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention provides a kind of system for creating the quick heating, drying material of subnormal ambient, including：Metal shell, heater, exhaust outlet, drying frame, into and out of material mouth external door, filter, discharge duct, dehydrating unit, vacuum pump, excess pressure valve, hygrometer.The negative pressure drying system, the shortcomings that negative pressure technique is applied in drying system, improves big traditional dryer system heat consumption, narrow application range, accelerates the speed and efficiency of material drying, suitable for the drying of various materials product, suitable for a variety of external climate environment.
Description
Technical field
The present invention relates to a kind of drying system, more particularly to a kind of subnormal ambient quick heating, drying material of creating
System.
Background technology
Vacuum pump technology of the present invention, heater device such as microwave applicator, closed metal housing, heat insulation apply
The technologies such as layer, excess pressure valve are all highly developed, it is only necessary to combine it, type selection calculation.
The content of the invention
The problems such as conventional clothes dryer is big there are heat consumption, and efficiency is low, narrow application range.Invention introduces negative pressure drying
Method, there is provided a kind of system that can create the quick heating, drying material of subnormal ambient, the shortcomings that improving traditional dryer,
The speed and efficiency of material drying are accelerated, and the system is suitable for each external climate environment, various materials, the scope of application
Extensively.
The present invention is a kind of system that can create the quick heating, drying material of subnormal ambient, including：Metal shell, heating
Device, exhaust outlet, drying frame, into and out of material mouth external door, filter, discharge duct, dehydrating unit, vacuum pump, excess pressure valve, hygrometer；
The drying course of the dryer includes, it would be desirable to which the material of drying is dried in the air by being sent into and out of material mouth external door in metal shell
Shine on drying frame, close into and out of material mouth external door, metal shell is entered sealing state, later on vacuum pump, by housing
Air is excluded by exhaust outlet, discharge duct, while heater, is evenly heated the material for needing to be oven-dried, true in housing
Reciprocal of duty cycle reaches -0.09Mpa（If atmospheric pressure is 0.1MPa）When, heater rapidly makes shell body temperature reach 45.8 DEG C so that
The rapid explosive evaporation of moisture；When reaching 0.01Mpa inside metal shell, housing inside and outside differential pressure opens excess pressure valve, will be outdoor empty
Pneumatic transmission enters in housing, pressure increase in housing, pressure difference deficiency, and excess pressure valve is closed；Into the air in housing again by vacuum pump
Swabbing action, discharged entrainment of vapor along discharge duct, in housing air pressure reduce, excess pressure valve is again turned on, before circulation
Process；Back and forth several times after, the vapor in housing is all pulled away；Check hygrometer, after the completion of drying close vacuum pump with
Heater, by material by being sent out into and out of material mouth external door.
The heater, can be selected microwave applicator, rated temperature can be 45.8 DEG C a little higher than, and actual temp can be according to locality
Atmospheric pressure determines.
The metal shell, have good seal into and out of material mouth external door, excess pressure valve, ensure that the effect of negative pressure；And
Adiabatic edge coating should be scribbled in inner wall, prevent heater heat to scatter and disappear.
The excess pressure valve inside and outside differential pressure≤（Atmospheric pressure -0.01Mpa）Shi Kaiqi,<（Atmospheric pressure -0.01Mpa）When close.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram for the system that can create the quick heating, drying material of subnormal ambient of the present invention.
Wherein, 1, metal shell；2nd, heater；3rd, exhaust outlet；4th, drying frame；5th, into and out of material mouth external door；6th, filter；
7th, discharge duct；8th, dehydrating unit；9th, vacuum pump；10th, excess pressure valve；11st, hygrometer.
Embodiment
The present invention is described further with reference to Fig. 1.
As shown in Figure 1, a kind of system that can create the quick heating, drying material of subnormal ambient, including：Metal shell 1,
Heater 2, exhaust outlet 3, drying frame 4, into and out of material mouth external door 5, filter 6, discharge duct 7, dehydrating unit 8, vacuum pump 9, remaining
Pressure valve 10, hygrometer 11；The drying course of the dryer includes, it would be desirable to which the material of drying is by into and out of material mouth external door 5
It is sent into metal shell 1, dries on drying frame 4, close into and out of material mouth external door 5, metal shell is entered sealing state, with
Vacuum pump 9 is opened afterwards, and air in housing is excluded by exhaust outlet 3, discharge duct 7, while heater 2, it is evenly heated
Need the material being oven-dried, when vacuum reaches -0.09Mpa in housing, heater 2 rapidly reaches shell body temperature
45.8 DEG C so that the rapid explosive evaporation of moisture；When reaching 0.01Mpa inside metal shell 1, housing inside and outside differential pressure is by excess pressure valve
10 open, and outdoor air is sent into housing, pressure increase in housing, pressure difference deficiency, and excess pressure valve 10 is closed；Into in housing
Air again by the swabbing action of vacuum pump 9, discharged entrainment of vapor along discharge duct 7, in housing air pressure reduce, excess pressure valve
10 are again turned on, the process before circulating；Back and forth several times after, the vapor in housing is all pulled away；Check hygrometer 11, dry
Vacuum pump 9 and heater 2 are closed after the completion of dry, by material by being sent out into and out of material mouth external door 5.
The heater 2, can be selected microwave applicator, rated temperature can be 45.8 DEG C a little higher than, and actual temp is according to locality
Atmospheric pressure determines.
The metal shell 1, into and out of material mouth external door 5, excess pressure valve 10 have good seal, ensure that the effect of negative pressure
Fruit；And adiabatic edge coating should be scribbled in inner wall, prevent heater heat to scatter and disappear.
The excess pressure valve 10 inside and outside differential pressure≤（Atmospheric pressure -0.01Mpa）Shi Kaiqi,<（Atmospheric pressure -0.01Mpa）Shi Guan
Close.
Claims (11)
1. the present invention is a kind of system that can create the quick heating, drying material of subnormal ambient, including：Metal shell, heating
Device, exhaust outlet, drying frame, into and out of material mouth external door, filter, discharge duct, dehydrating unit, vacuum pump, excess pressure valve, hygrometer；
The drying course of the negative pressure drying system includes, it would be desirable to which the material of drying into and out of material mouth external door by being sent into metal-back
In body, to close into and out of material mouth external door, metal shell is entered sealing state, later on vacuum pump extracts the air in housing,
So that negative pressure state is presented in housing；Heater at the same time, is evenly heated the material for needing to be oven-dried, due to pressure in housing
Reduction, the boiling point of water also accordingly reduces, heater then can rapidly make shell body temperature reach corresponding air pressure water boiling point,
So that the rapid explosive evaporation of moisture；After enclosure interior reaches nominal pressure value, boiling point is minimum, the abundant explosive evaporation of moisture, housing
Inside and outside pressure difference opens excess pressure valve, and outdoor air is sent into housing, and pressure increase in housing, pressure difference reduces, and excess pressure valve closes
Close；Into the air in housing again by the swabbing action of vacuum pump, discharged entrainment of vapor along exhaust outlet, discharge duct, shell
Internal air pressure reduces, and excess pressure valve is again turned on, the process before circulating；Back and forth several times after, the vapor in housing is all by band
Walk；Discharge duct is connected to the dehydrating unit of filter and a built-in absorbent/adsorbent, absorbs moisture；Excess pressure valve is closed
When check hygrometer, when humidity is up to standard, drying complete, vacuum pump and heater are then turned off, by material by being sent into and out of material mouth
Go out.
2. a kind of negative pressure drying system according to claim 1, it is characterised in that system integral outer is a metal-back
Body, housing should have good seal to ensure vacuum effect, and inner wall should have adiabatic edge material coating, prevent that heater is warm
Amount is outwards scattered and disappeared by wall.
3. a kind of negative pressure drying system according to claim 1, it is characterised in that reduce enclosure interior using vacuum pump
Air pressure reduces the boiling point of moisture, so as to reduce the heat needed for the boiling of water；Quickly extract vapour out in pumping process at the same time
The steam of change, and negative pressure state is formed around material, formed between the ectonexine of material and between surface and surrounding medium compared with
Big temperature gradient, accelerates vaporization rate, has reached quick-drying purpose.
4. a kind of negative pressure drying system according to claim 1, it is characterised in that set specified vacuum as -0.09MPa
（If atmospheric pressure is 0.1Mpa）, the saturation temperature of water is 45.8 DEG C at this time；Determined with specific reference to local outside atmosphere pressure value.
5. a kind of negative pressure drying system according to claim 1, it is characterised in that be the effect for reaching fast vaporizing, add
Hot device is proposed with microwave applicator；When microwave heats, dielectric material can directly absorb microwave, and be converted into thermal energy, at this time should
Elect apparatus casing inner wall metal material as microwave reflective material, can reflect and non-absorbing microwave, so microwave heating equipment
Heat loss only account for few part of total energy consumption；Microwave heating is internal " body heat source ", and is not required high-temperature medium to conduct heat,
Therefore most of microwave energy is all absorbed by material, is converted into heat, can effectively be reduced drying time, form the characteristics of efficient；Volume
Constant temperature degree is set as 45.8 DEG C, is determined with specific reference to local atmospheric pressure.
6. a kind of negative pressure drying system according to claim 1, it is characterised in that filter is connected on discharge duct, is examined
Consider operating mode more to clean, it is proposed that select low efficient filter.
7. a kind of negative pressure drying system according to claim 1, it is characterised in that built-in absorption is connected on discharge duct
The dehydrating unit of agent/adsorbent, when very big except humidity load, can select to install；When not high except humidity load, it can select
Do not install.
8. a kind of negative pressure drying system according to claim 1, it is characterised in that into and out of material mouth external door, should have good
Leakproofness, inner wall should also scribble adiabatic edge material coating, prevent heat outwards to scatter and disappear, influence drying efficiency.
A kind of 9. negative pressure drying system according to claim 1, it is characterised in that there is provided excess pressure valve, overbottom pressure during closing
Valve should have good leakproofness, and inner wall should have adiabatic edge material coating, prevent heat outwards to scatter and disappear；Enclosure interior atmospheric pressure value reaches
To nominal pressure 0.01Mpa（Vacuum -0.09Mpa, if atmospheric pressure is 0.1MPa）When, inside and outside differential pressure opens excess pressure valve, outside
Portion's air enters housing, and under the swabbing action of vacuum pump, air current composition has taken away the vapor of enclosure interior；Pressure difference reduces
Afterwards, excess pressure valve is closed, and vacuum pump works on heater, and when pressure difference reaches rated value again, excess pressure valve is again turned on, and is taken away
Vapor, moves in circles, until when excess pressure valve is closed, hygrometer shows that humidity is up to standard in housing, dry complete, closes system
System, takes out dried material.
A kind of 10. negative pressure drying system according to claim 1, it is characterised in that the excess pressure valve inside and outside differential pressure≤
（Atmospheric pressure -0.01Mpa）Shi Kaiqi,<（Atmospheric pressure -0.01Mpa）When close, from excess pressure valve introduce air in vacuum pumping
The lower entrainment vapor of effect is discharged housing.
A kind of 11. negative pressure drying system according to claim 1, it is characterised in that a variety of different materials can be dried,
It is applied widely such as textile, cloth, grain, mineral etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710983917.1A CN107906857A (en) | 2017-10-20 | 2017-10-20 | A kind of negative pressure dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710983917.1A CN107906857A (en) | 2017-10-20 | 2017-10-20 | A kind of negative pressure dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107906857A true CN107906857A (en) | 2018-04-13 |
Family
ID=61841645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710983917.1A Pending CN107906857A (en) | 2017-10-20 | 2017-10-20 | A kind of negative pressure dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107906857A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902572A (en) * | 2021-02-17 | 2021-06-04 | 珠海金太节能科技有限公司 | Integral vacuum type heat pump drying energy-saving device |
| CN113666054A (en) * | 2020-05-15 | 2021-11-19 | 中冶宝钢技术服务有限公司 | Active carbon conveying device and active carbon desulfurization and denitrification system |
Citations (5)
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|---|---|---|---|---|
| CN101000208A (en) * | 2006-12-31 | 2007-07-18 | 山东东岳高分子材料有限公司 | Drying method for teflon dispersed resin |
| CN201050928Y (en) * | 2007-06-07 | 2008-04-23 | 赵笠孝 | Negative pressure far infrared swelling drier |
| CN102353238A (en) * | 2011-08-01 | 2012-02-15 | 上海海事大学 | Intermittent type vacuum microwave drying device and method for processing core material of vacuum heat insulation plate by using intermittent type vacuum microwave drying device |
| CN103090645A (en) * | 2011-11-01 | 2013-05-08 | 四川汇利实业有限公司 | Water condensation preventing microwave vacuum drier |
| CN107166897A (en) * | 2017-05-23 | 2017-09-15 | 中国农业大学 | A kind of vacuum impulse dries the method and apparatus of Poria cocos |
-
2017
- 2017-10-20 CN CN201710983917.1A patent/CN107906857A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000208A (en) * | 2006-12-31 | 2007-07-18 | 山东东岳高分子材料有限公司 | Drying method for teflon dispersed resin |
| CN201050928Y (en) * | 2007-06-07 | 2008-04-23 | 赵笠孝 | Negative pressure far infrared swelling drier |
| CN102353238A (en) * | 2011-08-01 | 2012-02-15 | 上海海事大学 | Intermittent type vacuum microwave drying device and method for processing core material of vacuum heat insulation plate by using intermittent type vacuum microwave drying device |
| CN103090645A (en) * | 2011-11-01 | 2013-05-08 | 四川汇利实业有限公司 | Water condensation preventing microwave vacuum drier |
| CN107166897A (en) * | 2017-05-23 | 2017-09-15 | 中国农业大学 | A kind of vacuum impulse dries the method and apparatus of Poria cocos |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666054A (en) * | 2020-05-15 | 2021-11-19 | 中冶宝钢技术服务有限公司 | Active carbon conveying device and active carbon desulfurization and denitrification system |
| CN113666054B (en) * | 2020-05-15 | 2023-02-03 | 中冶宝钢技术服务有限公司 | Active carbon conveying device and active carbon desulfurization and denitrification system |
| CN112902572A (en) * | 2021-02-17 | 2021-06-04 | 珠海金太节能科技有限公司 | Integral vacuum type heat pump drying energy-saving device |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180413 |
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| WD01 | Invention patent application deemed withdrawn after publication |