CN103924427A - Low-pressure clothes dryer - Google Patents
Low-pressure clothes dryer Download PDFInfo
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- CN103924427A CN103924427A CN201310014786.8A CN201310014786A CN103924427A CN 103924427 A CN103924427 A CN 103924427A CN 201310014786 A CN201310014786 A CN 201310014786A CN 103924427 A CN103924427 A CN 103924427A
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- cylinder
- heat
- low pressure
- roller
- air
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/206—Heat pump arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/26—Heating arrangements, e.g. gas heating equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/049—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with provisions for working under increased or reduced pressure, with or without heating
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
- D06F58/04—Details
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The invention discloses a low-pressure clothes dryer which comprises a sealed rotatable roller, an outer chamber, a heating device, an evacuating device, an air distribution valve, a heat-conducting medium and a heater, wherein the outer chamber is used for containing the roller, the heating device is used for heating the roller, the evacuating device is used for pumping air in the roller, the air distribution valve is used for controlling communication of the inside of the roller and the outside to adjust the internal air pressure of the roller, the heating device is arranged outside the roller and inside the outer chamber, the heat-conducting medium is used for transferring heat for the outer surface of the roller, and the heater is arranged in the heat-conducting medium. A hollow roller shaft is coaxially arranged at the rear end of the roller, a vent pipe is arranged in the roller shaft, the inside of the roller is communicated with the outside by the aid of the vent pipe, the vent pipe and the roller shaft rotate relatively, two ends of the vent pipe extend out of the roller shaft, the space between the tail end of the roller shaft and the vent pipe is sealed, and the air distribution valve is arranged at one external end of the vent pipe. The low-pressure clothes dryer has the advantages that drying energy consumption is reduced, clothes drying is accelerated, and clothes drying efficiency is improved.
Description
Technical field
The present invention relates to a kind of dryer, especially a kind of lower boiling condition of low pressure of utilizing is to realize the dryer of flash baking clothing.
Background technology
Be no matter airing clothes in the sun, still utilize clothes drying device drying clothes, its final purpose is all to remove the moisture containing in clothing, makes cloth drying.Because airing clothes is subject to the restriction of weather conditions, more and morely adopt various clothes drying device drying clothes.
At the drier for clothesdrier or clothes washer-dryer, mostly adopt heater to add the mode of heating of hot-air.Existing electrothermal dryer generally adopts heater strip or heating tube as thermal source, and this type of product energy consumption is high, drying time length and poor stability.In order to reduce energy consumption, developed heat pump clothes dryer, use heat pump, strengthen the recycle to heat, improve the utilization ratio of heat, reduce the consumption of electric energy.
In heat-pump-type clothes drying device, be provided with following air circulation duct: cold dry air heats via the condenser of heat pump, hot-air is admitted in the hothouse that clothing is housed, from clothing, capture moisture, become damp-heat air, damp-heat air is separated out steam evaporimeter recovery simultaneously heat through the evaporimeter of heat pump, air after dehumidifying is heated by condenser again, and sends in hothouse.
Although the Energy Intensity Reduction of these heat pump clothes dryers, drying speed aspect, does not improve, and clothes drying process required time is still longer, and generally drying 7-8KG clothing needs 2-3 hour.In order to remove the moisture in clothing in the short time, people take variety of way to realize this purpose, and the method that dryer adopts is rising temperature, strengthens surperficial circulation of air, increase disengagement area.Although use these methods, the energy consumption of clothes drying process and time are still high.And at high temperature drying clothes, has destruction to fabric itself, and easily produce gauffer and shrink.
Above-mentioned clothes-drying device, aspect drying speed, does not still improve, and clothes drying process required time is still longer.
In view of this special proposition the present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, and a kind of low pressure dryer of drying energy consumption, quickening drying speed, improving drying efficiency that reduces is provided.
For solving the problems of the technologies described above, the present invention adopts the basic conception of technical scheme to be: a kind of low pressure dryer, comprise the rotating cylinder of sealing, hold the outer chamber of cylinder, for the heater to cylinder heating and vacuum extractor that air in cylinder is extracted out, also comprise for index drum inside and the extraneous distributing valve that passes to mutually adjustment roll cylinder air pressure inside, described heater is located at cylinder outside, outer chamber is inner, comprises for the heat-conducting medium to outer surface of cylinder transferring heat and is located at the heater in heat-conducting medium.
Further, described cylinder rearward end is coaxially provided with the drum shaft of a hollow, in drum shaft, be provided with cylinder is inner and the extraneous breather pipe communicating, breather pipe and drum shaft relatively rotate setting, two ends all stretch out in drum shaft, between drum shaft end and breather pipe, seal, the external one end of breather pipe is provided with described distributing valve.
Further, described drum shaft inside forms with the space between breather pipe the bleed-off passage communicating with cylinder inside, and drum shaft sidepiece is provided with the aspirating hole being communicated with vacuum extractor.
Under different air pressure, the boiling point of water is different, air pressure is lower, boiling point is also lower, by controlling the action of distributing valve, the air pressure in cylinder is maintained between 0.005-0.01Mpa, so that the moisture in cylinder is realized gasification in the time of temperature 33-45 ℃, utilize this lower boiling temperature to save heater heat time heating time, reduce energy consumption, save the drying time, improved drying efficiency.
Further, in described cylinder, be provided with a dividing plate, dividing plate becomes clothing chamber and the chamber of bleeding by cylinder interior separation, between dividing plate and cylinder rearward end, form this chamber of bleeding, bleed-off passage communicates with the chamber of bleeding, dividing plate is provided with a plurality of passages and breather pipe perforation, and one end of breather pipe respective rollers inside is through bleeding chamber to breather pipe perforation or through breather pipe perforation.This diaphragm structure communicates with clothing chamber by the passage chamber of bleeding, and has relatively amplified the path of bleeding, and has avoided cylinder undergarment rotation process to be directly deposited in the possibility that bleed-off passage is stopped up at cylinder rear portion.
Further, described dividing plate is an arc, and install respective rollers axle and cylinder rearward end junction, and periphery and cylinder rearward end inwall are connected smoothly.Prevent the clothing distortion that clothes drying process diaphragm structure causes, also do not affect the clothing amount of holding of cylinder inside.
Further, the radius R of the radius r of described dividing plate and cylinder inside meets: R/5≤r≤R, the cylinder axial length that the axial maximum length of the chamber of bleeding is less than 1/10th times.
Or different from such scheme, described drum front end is provided with the aspirating hole being communicated with vacuum extractor.Preferably be located on the sidewall of clothing dispensing port.
Outer chamber of the present invention is that the urceolus of being located at cylinder outside forms, and cylinder is with being located in urceolus, and heat-conducting medium is liquid, is located between cylinder and urceolus, and liquid level is higher than the semidiameter of cylinder and urceolus.This heat-conducting medium is water or the good liquid of heat conduction wet goods heat conductivility, is preferably water.
Further, be positioned at the outer tube wall of cylinder below to outer process, the inner shallow storage space that forms a spill, described heater is located in shallow storage space, and the least radius that the minimum range of heater and cylinder is greater than between cylinder and urceolus is poor.
At cylinder rotation process, cylinder bottom contacts with water or conduction oil all the time, heater produces heat and passes to cylinder by water or heat-conduction oil heat, and then inner intensification of cylinder realized clothing heating, drying, generally because heater is directly arranged in water or conduction oil is inner, can make the temperature of water or conduction oil remain on 40 ℃～60 ℃, 35 ℃～55 ℃ of the temperature of cylinder surface, the temperature in cylinder maintains 30 ℃～50 ℃.
Further, described dryer also comprises heat pump, heat pump mainly comprises compressor, condenser, throttling arrangement and evaporimeter, by refrigerant circulation pipeline, successively compressor, condenser, throttling arrangement, evaporimeter are communicated with to compressor again, condenser is described heater, the damp and hot mixing air heat exchange that evaporimeter and vacuum extractor are extracted out absorbs heat from damp and hot mixing air, and damp and hot mixing air is cooling and condense into water simultaneously.
Or further scheme is, described heater is electric heating tube, and described vacuum extractor comprises an air condensation device, and the damp and hot mixing air that vacuum extractor is extracted out is by air condensation device and the cooling water that condenses into of outside air heat exchange.
Described vacuum extractor utilizes the philosophy-Bernoulli equation principle in hydrodynamics, its part comprises injector, centrifugal pump and the water collector of taking out negative pressure, by centrifugal pump be communicated with successively injector, water collector forms a circulation waterway to centrifugal pump, vacuum extractor also comprises vacuum-pumping pipeline, one end is communicated with drum shaft aspirating hole, and the other end after evaporimeter or air condensation device is communicated with injector.
Described injector is Venturi tube, the rear side of Venturi tube outlet is communicated with vacuum-pumping pipeline, by centrifugal pump, pass through successively injector, water collector arrives the circulation waterway of centrifugal pump again, circulation waterway operation, the rear side of Venturi tube outlet starts to take out negative pressure, by vacuum-pumping pipeline, extract the damp and hot mixing air in cylinder, cylinder internal gas pressure diminishes, coordinate the action of distributing valve, cylinder internal gas pressure is controlled in setting range, damp and hot mixing air saturated in cylinder is by collecting in water collector through evaporimeter or air condensation device water cooling and that condense in vacuum-pumping pipeline.
During dryer work, distributing valve cuts out, vacuum extractor and heater work, in cylinder, temperature and pressure reach after setting value, now the steam in cylinder is larger, open distributing valve, pass into outside air, now vacuum extractor can be extracted saturated damp and hot mixing air out rapidly, set after a period of time, close distributing valve, then continue above-mentioned steps, the frequency that above-mentioned steps is opened distributing valve can be fixed value, also can be changing value, maintain cylinder internal gas pressure in setting range, until the drying later stage, after reaching in cylinder and imposing a condition, heater quits work, open distributing valve, vacuum extractor work extracts the hot gas in cylinder until impose a condition out, drying finishes.Above-mentioned imposing a condition as the humidity in cylinder or temperature or rate of temperature change or clothes weight rate of change.
Adopt after technique scheme, the present invention compared with prior art has following beneficial effect.
During low pressure dryer of the present invention work, shut cloth drier door after clothing is put into cylinder, realize the sealing completely of cylinder, driven by motor cylinder rotates, a undergarment that is used for overturning, realizes shaking loose of clothing fluffy, accelerates drying rate, vacuum extractor extracts air and the water vapour in cylinder, coordinate distributing valve that the air pressure in cylinder is controlled between 0.005-0.01Mpa, due under different air pressure, the boiling point of water is different, air pressure is lower, and boiling point is also lower.The present invention utilizes above-mentioned principle, thereby realizes the low temperature drying of clothing, has reduced heat time heating time used when conventional dryer heater must be heated to higher temperature, has accelerated drying speed, can further reduce energy consumption simultaneously, reduces the damage to clothing.
Described heater directly heats heat-conducting medium, thereby heated roller, because heater is also arranged between cylinder and urceolus, has reduced the loss that heat transmits, and improves the thermal efficiency, has simplified system architecture simultaneously, has reduced cost, has also promoted drying quality.
Accompanying drawing explanation
Fig. 1 is low pressure dryer parts annexation schematic diagram of the present invention;
Fig. 2 is another annexation schematic diagram of low pressure dryer parts of the present invention;
Fig. 3 is low pressure drum for clothes drier internal partition scheme of installation of the present invention;
Fig. 4 is a low pressure dryer parts of the present invention annexation schematic diagram again.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The present invention utilizes the relation of air pressure and boiling point, and under different air pressure, the boiling point of water is different, and air pressure is lower, and boiling point is also lower.Both corresponding relations are with reference to following table:
| Air pressure (MPa) | Boiling point (℃) | Air pressure (MPa) | Boiling point (℃) | Air pressure (MPa) | Boiling point (℃) |
| 0.101 | 100 | 0.031 | 70 | 0.007 | 39 |
| 0.0846 | 95 | 0.0268 | 67 | 0.006 | 36.159 |
| 0.071 | 90 | 0.02 | 60.05 | 0.005 | 32.874 |
| 0.058 | 85 | 0.018 | 57.8 | 0.004 | 28.96 |
| 0.044 | 80 | 0.013 | 51.034 | 0.003 | 24.079 |
| 0.0436 | 78 | 0.01 | 45.8 | 0.002 | 17.495 |
| 0.036 | 75 | 0.009 | 41.5 | 0.001 | 6.9696 |
In table, data can be found out, under the air pressure of 0.005～0.01MPa, water can seethe with excitement at 32.874 ℃～45.8 ℃, and, when air pressure is enough low, water also can reach boiling point at lower temperature, can realize the rapid evaporation under low temperature.Dryer of the present invention, by manufacturing environment under low pressure, is realized at low temperatures, rapid evaporation moisture, thus realize fast, the clothes drying effect of low energy consumption.
As shown in Figures 1 to 4, low pressure dryer of the present invention, comprise the cylinder 1 of sealing, the outer chamber 2 of holding cylinder, heater, vacuum extractor and distributing valve 10, vacuum extractor and cylinder internal communication are to extract cylinder inner air, form the environment under low pressure of cylinder inside, heater is in order to heat to cylinder, and distributing valve 10 is controlled outside air is passed in cylinder to coordinate the air pressure regulating in cylinder with vacuum extractor.Described heater is located at cylinder 1 outside, outer chamber 2 inside, comprises for the heat-conducting medium 8 to outer surface of cylinder transferring heat and is located at the heater 9 in heat-conducting medium.Due under different air pressure, the boiling point of water is different, air pressure is lower, boiling point is also lower, and the present invention, by controlling the action of distributing valve, maintains between 0.005-0.01Mpa the air pressure in cylinder, so that the moisture in cylinder is realized gasification in the time of temperature 33-45 ℃, utilize this lower boiling temperature to save heater heat time heating time, reduce energy consumption, save the drying time, improved drying efficiency.
Embodiment mono-
As depicted in figs. 1 and 2, cylinder 1 rearward end described in the present embodiment is coaxially provided with the drum shaft 3 of a hollow, this drum shaft is also supporting rotating shaft, direct driving motor is installed to drive rotation on drum shaft, drum shaft 3 hollow bulbs form the bleed-off passage 31 communicating with cylinder inside, and drum shaft 3 sidepieces are provided with the aspirating hole 32 being communicated with vacuum extractor.
In described drum shaft 3, be provided with cylinder 1 is inner and the extraneous breather pipe 4 communicating, breather pipe 4 relatively rotates setting with drum shaft 3, two ends all stretch out in drum shaft 3, sealing between drum shaft 3 ends and breather pipe 4, and the external one end of breather pipe 3 is provided with described distributing valve 10.
In described cylinder 1, be provided with a dividing plate 5, dividing plate 5 becomes clothing chamber 11 and the chamber 12 of bleeding by cylinder interior separation, between dividing plate 5 and cylinder rearward end, form this chamber 12 of bleeding, bleed-off passage 31 communicates with the chamber 12 of bleeding, dividing plate 5 is provided with a plurality of passages 51 and breather pipe perforation 52, and one end of breather pipe 4 respective rollers inside is through bleeding chamber 12 to breather pipe perforation 52 or through breather pipe perforation 52.This diaphragm structure communicates with clothing chamber by the passage chamber of bleeding, and has relatively amplified the path of bleeding, and has avoided cylinder undergarment rotation process to be directly deposited in the possibility that bleed-off passage is stopped up at cylinder rear portion.
Embodiment bis-
As depicted in figs. 1 and 2, dividing plate 5 described in the present embodiment is an arc, respective rollers axle 3 is installed with cylinder 2 rearward end junctions, and periphery and cylinder 2 rearward end inwalls are connected smoothly, and the radius R of the radius r of dividing plate and cylinder inside meets: R/5≤r≤R(consults Fig. 1).This structure prevents the clothing distortion that clothes drying process diaphragm structure causes, and does not also affect the clothing amount of holding of cylinder inside.Or dividing plate 5 is one dull and stereotyped with the identical circle of the radially section of cylinder, directly cylinder inner space is separated into the space (consulting Fig. 3) of two cylindrical structures.
The above-mentioned axial maximum length K of chamber 12 and cylinder 1 axial length L of bleeding meets K < L/10.
Embodiment tri-
As depicted in figs. 1 and 2, the outer chamber 2 described in the present embodiment forms for being located at the urceolus 20 of cylinder outside, and cylinder 1 is with being located in urceolus 20, and heat-conducting medium 8 is liquid, is located between cylinder 1 and urceolus 20, and liquid level is higher than the semidiameter of cylinder 1 and urceolus 20.This heat-conducting medium is water or the good liquid of heat conduction wet goods heat conductivility, is preferably water.Be positioned at the outer tube wall of cylinder below to outer process, the inner shallow storage space 21 that forms a spill, described heater 9 is located in shallow storage space 21, and the least radius that the minimum range of heater and cylinder is greater than between cylinder and urceolus is poor.
At cylinder rotation process, cylinder bottom contacts with water or conduction oil all the time, heater produces heat and passes to cylinder by water or heat-conduction oil heat, and then inner intensification of cylinder realized clothing heating, drying, generally because heater is directly arranged in water or conduction oil is inner, can make the temperature of water or conduction oil remain on 40 ℃～60 ℃, 35 ℃～55 ℃ of the temperature of cylinder surface, the temperature in cylinder maintains 30 ℃～50 ℃.
Embodiment tetra-
As shown in Figure 1, dryer described in the present embodiment also comprises heat pump, heat pump mainly comprises compressor 61, condenser 62, throttling arrangement and evaporimeter 63, by refrigerant circulation pipeline 64, successively compressor 61, condenser 62, throttling arrangement, evaporimeter 63 are communicated with to compressor 61 again, condenser 62 is described heater 9, the damp and hot mixing air heat exchange that evaporimeter 63 and vacuum extractor are extracted out, from damp and hot mixing air, absorb heat, simultaneously damp and hot mixing air is cooling and condense into water.Throttling arrangement comprises refrigerant cylinder 65 and control valve 66.
61 pairs of cold-producing mediums of compressor compress the cold-producing medium of the High Temperature High Pressure of generation are transferred to condenser 62, cold-producing medium release heat in condenser 62, the heat discharging is by heat-conducting medium 8 as water or conduction oil absorbs and then be that cylinder surface heats, cold-producing medium regulates by refrigerant cylinder 65 and control valve 66 by condenser 62, become the gas of low-pressure low-temperature, low-temp low-pressure gas is by evaporimeter 63, in evaporimeter 63 by the damp and hot mixing air heat exchange of extracting out with vacuum extractor, from damp and hot mixing air, absorb heat, simultaneously damp and hot mixing air is cooling and condense into water.
Embodiment five
As shown in Figure 2, the heater described in the present embodiment is 9 electric heating tubes, and described vacuum extractor comprises an air condensation device, and the damp and hot mixing air that vacuum extractor is extracted out is by air condensation device and the cooling water that condenses into of outside air heat exchange.Air condensation device is prior art, comprises counter current condenser 13 and blower fan 14.
Embodiment six
Different from embodiment tri-to embodiment five, heat-conducting medium described in the present embodiment is fin, by air heat transfer heated roller outer surface, outer tube inner wall is provided with thermal insulation layer, or outer chamber does not adopt outer tube structure and directly utilizes a body structure, in casing, by thermal insulation board, the structures such as motor are isolated in to outside, for example, use thermal insulation board that cylinder is surrounded, heater is provided with thermal insulation board inwall.
Embodiment seven
As depicted in figs. 1 and 2, vacuum extractor described in the present embodiment utilizes the philosophy-Bernoulli equation principle in hydrodynamics, its part comprises injector 71, centrifugal pump 72 and the water collector 73 of taking out negative pressure, by centrifugal pump 72 be communicated with successively injector 71, water collector 73 forms a circulation waterway to centrifugal pump 72, vacuum extractor also comprises vacuum-pumping pipeline 74, one end is communicated with drum shaft aspirating hole 32, and the other end after evaporimeter 63 or counter current condenser 13 is communicated with injector 71.
Described injector 71 is Venturi tube, the rear side of Venturi tube outlet is communicated with vacuum-pumping pipeline 74, by centrifugal pump 72, pass through successively injector 71, water collector 73 arrives the circulation waterway of centrifugal pump 72 again, circulation waterway operation, the rear side of Venturi tube outlet starts to take out negative pressure, by vacuum-pumping pipeline, extract the damp and hot mixing air in cylinder, cylinder internal gas pressure diminishes, coordinate the action of distributing valve, cylinder internal gas pressure is controlled in setting range, damp and hot mixing air saturated in cylinder is by collecting in water collector through evaporimeter or counter current condenser water cooling and that condense in vacuum-pumping pipeline.
Embodiment eight
As shown in Figure 4, the aspirating hole 32 described in the present embodiment is located at the front end of cylinder 1, and for example, on the sidewall of clothing dispensing port 25, vacuum extractor is vacuumized by drum front end, and rear end distributing valve is controlled and entered outside air.This structure can reduce the installation of dividing plate, and production cost reduces, and comparing said structure does not affect the laundry amounts that cylinder holds.
During low pressure dryer work of the present invention, distributing valve cuts out, vacuum extractor and heater work, in cylinder, temperature and pressure reach after setting value, now the steam in cylinder is larger, open distributing valve, pass into outside air, now vacuum extractor can be extracted saturated damp and hot mixing air out rapidly, set after a period of time, close distributing valve, then continue above-mentioned steps, the frequency that above-mentioned steps is opened distributing valve can be fixed value, also can be changing value, maintain cylinder internal gas pressure in setting range, until the drying later stage, after reaching in cylinder and imposing a condition, heater quits work, open distributing valve, vacuum extractor work extracts the hot gas in cylinder until impose a condition out, drying finishes.Above-mentioned imposing a condition as the humidity in cylinder or temperature or rate of temperature change or clothes weight rate of change.
Embodiment in above-described embodiment can further combine or replace; and embodiment is described the preferred embodiments of the present invention; not the spirit and scope of the present invention are limited; do not departing under the prerequisite of design philosophy of the present invention; the various changes and modifications that in this area, professional and technical personnel makes technical scheme of the present invention, all belong to protection scope of the present invention.
Claims (11)
1. a low pressure dryer, comprise the rotating cylinder of sealing, hold the outer chamber of cylinder, for the heater to cylinder heating and vacuum extractor that air in cylinder is extracted out, it is characterized in that: also comprise for index drum inside and the extraneous distributing valve that passes to mutually adjustment roll cylinder air pressure inside, described heater is located at cylinder outside, outer chamber is inner, comprises for the heat-conducting medium to outer surface of cylinder transferring heat and is located at the heater in heat-conducting medium.
2. a kind of low pressure dryer according to claim 1, it is characterized in that: described cylinder rearward end is coaxially provided with the drum shaft of a hollow, in drum shaft, be provided with cylinder is inner and the extraneous breather pipe communicating, breather pipe and drum shaft relatively rotate setting, two ends all stretch out in drum shaft, between drum shaft end and breather pipe, seal, the external one end of breather pipe is provided with described distributing valve.
3. a kind of low pressure dryer according to claim 2, is characterized in that: described drum shaft inside forms with the space between breather pipe the bleed-off passage communicating with cylinder inside, and drum shaft sidepiece is provided with the aspirating hole being communicated with vacuum extractor.
4. a kind of low pressure dryer according to claim 3, it is characterized in that: in described cylinder, be provided with a dividing plate, between dividing plate and cylinder rearward end, form the chamber of bleeding, bleed-off passage communicates with the chamber of bleeding, dividing plate is provided with a plurality of passages and breather pipe perforation, and one end of breather pipe respective rollers inside is through bleeding chamber to breather pipe perforation or through breather pipe perforation.
5. a kind of low pressure dryer according to claim 4, is characterized in that: described dividing plate is an arc, and install respective rollers axle and cylinder rearward end junction, and periphery and cylinder rearward end inwall are connected smoothly.
6. a kind of low pressure dryer according to claim 5, is characterized in that: the radius R of the radius r of described dividing plate and cylinder inside meets: R/5≤r≤R, the cylinder axial length that the axial maximum length of the chamber of bleeding is less than 1/10th times.
7. a kind of low pressure dryer according to claim 1 and 2, is characterized in that: described drum front end is provided with the aspirating hole being communicated with vacuum extractor.
8. a kind of low pressure dryer according to claim 1, it is characterized in that: described outer chamber is that the urceolus of being located at cylinder outside forms, and cylinder is with being located in urceolus, and heat-conducting medium is liquid, be located between cylinder and urceolus, liquid level is higher than the semidiameter of cylinder and urceolus.
9. a kind of low pressure dryer according to claim 8, it is characterized in that: be positioned at the outer tube wall of cylinder below to outer process, the inner shallow storage space that forms a spill, described heater is located in shallow storage space, and the least radius that the minimum range of heater and cylinder is greater than between cylinder and urceolus is poor.
10. according to a kind of low pressure dryer described in claim 1 or 9, it is characterized in that: described dryer also comprises heat pump, heat pump mainly comprises compressor, condenser, throttling arrangement and evaporimeter, by refrigerant circulation pipeline, successively compressor, condenser, throttling arrangement, evaporimeter are communicated with to compressor again, condenser is described heater, the damp and hot mixing air heat exchange that evaporimeter and vacuum extractor are extracted out, from damp and hot mixing air, absorb heat, simultaneously damp and hot mixing air is cooling and condense into water.
11. according to a kind of low pressure dryer described in claim 1 or 9, it is characterized in that: described heater is electric heating tube, described vacuum extractor comprises an air condensation device, and the damp and hot mixing air that vacuum extractor is extracted out is by air condensation device and the cooling water that condenses into of outside air heat exchange.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310014786.8A CN103924427A (en) | 2013-01-15 | 2013-01-15 | Low-pressure clothes dryer |
| PCT/CN2013/089818 WO2014110957A1 (en) | 2013-01-15 | 2013-12-18 | Low-pressure clothes dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310014786.8A CN103924427A (en) | 2013-01-15 | 2013-01-15 | Low-pressure clothes dryer |
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| CN103924427A true CN103924427A (en) | 2014-07-16 |
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| CN201310014786.8A Pending CN103924427A (en) | 2013-01-15 | 2013-01-15 | Low-pressure clothes dryer |
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| WO (1) | WO2014110957A1 (en) |
Cited By (4)
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| CN107447465A (en) * | 2017-08-18 | 2017-12-08 | 浙江海洋大学 | A kind of novel evacuated yarn fabric dryer |
| US10816266B2 (en) | 2018-08-30 | 2020-10-27 | Whirlpool Corporation | Low pressure laundry treating appliance |
| US11192800B2 (en) | 2018-03-22 | 2021-12-07 | Whirlpool Corporation | Vapor compression distillation assembly |
| CN114438758A (en) * | 2020-11-03 | 2022-05-06 | 苏州三星电子有限公司 | Heat pump clothes dryer and method for preventing wrinkles and quickly drying clothes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TR201721922A2 (en) * | 2017-12-26 | 2019-07-22 | Arcelik As | HEAT PUMP SYSTEM IN DRYING WASHING MACHINES |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6370798B1 (en) * | 2001-01-31 | 2002-04-16 | Felipe Gonzalez, Sr. | Clothes dryer with vacuum assistance |
| CN102011294B (en) * | 2009-09-07 | 2015-07-29 | 海尔集团公司 | negative pressure type heat pump clothes dryer |
| CN101974843B (en) * | 2010-09-14 | 2016-07-06 | 海尔集团公司 | Vacuum heat pump clothes-drying method and dryer |
| CN203113114U (en) * | 2013-01-15 | 2013-08-07 | 海尔集团公司 | Low-pressure clothes dryer |
-
2013
- 2013-01-15 CN CN201310014786.8A patent/CN103924427A/en active Pending
- 2013-12-18 WO PCT/CN2013/089818 patent/WO2014110957A1/en active Application Filing
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| CN107447465A (en) * | 2017-08-18 | 2017-12-08 | 浙江海洋大学 | A kind of novel evacuated yarn fabric dryer |
| US11192800B2 (en) | 2018-03-22 | 2021-12-07 | Whirlpool Corporation | Vapor compression distillation assembly |
| US10816266B2 (en) | 2018-08-30 | 2020-10-27 | Whirlpool Corporation | Low pressure laundry treating appliance |
| US11242646B2 (en) | 2018-08-30 | 2022-02-08 | Whirlpool Corporation | Low pressure laundry treating appliance |
| US11661699B2 (en) | 2018-08-30 | 2023-05-30 | Whirlpool Corporation | Low pressure laundry treating appliance |
| US12006623B2 (en) | 2018-08-30 | 2024-06-11 | Whirlpool Corporation | Motor assembly for a laundry treating appliance |
| CN114438758A (en) * | 2020-11-03 | 2022-05-06 | 苏州三星电子有限公司 | Heat pump clothes dryer and method for preventing wrinkles and quickly drying clothes |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014110957A1 (en) | 2014-07-24 |
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Application publication date: 20140716 |