WO1997033032A1 - Procede et installation de sechage d'une masse de matiere fibreuse humide, notamment d'une masse de linge - Google Patents
Procede et installation de sechage d'une masse de matiere fibreuse humide, notamment d'une masse de linge Download PDFInfo
- Publication number
- WO1997033032A1 WO1997033032A1 PCT/FR1997/000408 FR9700408W WO9733032A1 WO 1997033032 A1 WO1997033032 A1 WO 1997033032A1 FR 9700408 W FR9700408 W FR 9700408W WO 9733032 A1 WO9733032 A1 WO 9733032A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- enclosure
- solenoid valve
- mass
- drying
- steam
- Prior art date
Links
- 238000001035 drying Methods 0.000 title claims abstract description 37
- 239000002657 fibrous material Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- D06F39/40—
-
- 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
-
- 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
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
Definitions
- the present invention relates to a method and an installation for drying a mass of wet fibrous material, in particular a mass of laundry washed and placed in a washer-dryer machine or a dryer.
- the document WO No. 89/04392 discloses a method and an apparatus for drying, by means of superheated steam, a mass of laundry contained in an enclosure.
- the superheated steam is caused to circulate through the enclosure, in a closed circuit, by means of a fan mounted upstream of the enclosure and downstream of a heat source so as to discharge into the enclosure the steam d water evaporating from the laundry.
- the air contained in the enclosure is discharged through a vent to which is connected a condenser connected in bypass.
- Document EP-A-0 026 707 discloses a drying method and installation in which the drying cycle includes a first spin phase in which we do. ? . circulate through an enclosure, containing the material to be dried, water vapor produced by an independent steam generator and a second phase in which is circulated, by means of a fan plugged upstream of the enclosure, the water vapor evaporated from the wet material, this water vapor passing through a superheater.
- a condenser is connected in bypass at the outlet of the enclosure containing the wet material.
- the present invention relates to improvements in known drying methods and apparatuses which make it possible to significantly reduce the overall duration of drying a mass of fibrous material and to considerably reduce the cost of the drying installation.
- this method of drying a mass of wet fibrous material, in particular a mass of wet linen after washing in which steam of the fibrous material is passed through in a closed circuit water superheated at a temperature between 102 ° and 180 ° C and substantially at atmospheric pressure, characterized in that it comprises, before the drying phase with superheated steam, a prior phase of flushing the air, present in the closed circuit, by means of water vapor.
- the subject of the invention is also an installation for drying a mass of wet fibrous material, in particular a mass of wet linen after washing, comprising an enclosure in which the mass of wet linen is housed, a steam generator, a superheater, a condenser, and a fan for circulating, in a main pipe in a closed circuit, steam, superheated to a temperature ranging from 102 ° to 180 ° C., through the enclosure and the mass of wet fibrous material which it contains, characterized in that the fan intended to ensure the circulation of water vapor is constituted by a fan extractor connected, on the main pipe, downstream of the enclosure outlet, in order to create a slight vacuum in this enclosure, the condenser and the superheater are connected in series upstream of the enclosure, the main pipe is connected, on the discharge side of the fan, on the one hand to a first air solenoid valve, connected in bypass, and on the other hand to a second solenoid valve connected in series and the steam generator is connected to the main pipe
- the drying method and installation according to the present invention offer the advantage of allowing a simplification of the installation. Indeed, the prior rinsing of the closed circuit of its air, by means of water vapor, before the actual drying phase, allows the installation to operate at atmospheric pressure and the temperature of the vapor at the interior of the drying chamber is therefore always greater than 100 ° C. for normal atmospheric pressure. This can significantly reduce the cost of a dryer according to the invention because it is not necessary to use sophisticated sealing devices (gaskets etc ).
- the drying installation comprises an enclosure 1 in which is placed the mass of fibrous material to be dried which will be considered, in the context of the present description, as being damp linen as it appears after washing.
- the enclosure 1 can be constituted by a drum set in rotation by mechanical drive and which can rotate alternately in both directions, so as to stir the laundry.
- the enclosure 1 can also be constituted by a dryer in which the laundry items are stationary by being suspended in an appropriate manner.
- the enclosure 1 can also be of the type with continuous circulation of the pieces of linen, from an inlet to the outlet of the enclosure.
- the enclosure 1 is connected to an outlet duct 2 in which is housed a centrifugal fan 3 creating a vacuum in the enclosure 1 when it is started.
- the outlet conduit 2 is connected to a main pipe 4 connected in a closed circuit with the enclosure 1 and connected for this purpose to an inlet orifice of this enclosure.
- This main pipe 4 is intended for the circulation, in a closed circuit, of superheated water vapor and / or air, as will be explained below.
- a solenoid valve 5 also forming a vent valve, calibrated for example at a pressure of 1.05 bar absolute.
- Downstream of the connection point of the solenoid valve 5 is connected another solenoid valve 6, in series in the pipe 4, and downstream of this solenoid valve 6 is connected in diversion another solenoid valve 7 connected to the upper part of a generator. steam 8.
- a safety valve 9 calibrated at a pressure of 1.2 bar absolute for example.
- the steam generator 8 is connected to a source of water by means of a valve 11 and it includes an electric heating device 12 to cause the vaporization of the water contained in the generator 8.
- a steam condenser 13 On the pipe 4 is connected in series, downstream of the steam generator 8, a steam condenser 13 provided with an air or water cooling circuit 14.
- the condenser 13 is adjusted so that the condensation temperature is always slightly higher than the saturation temperature corresponding to atmospheric pressure, that is to say 100 ° C for normal atmospheric pressure.
- the condenser 13 contains a float 15 connected to a level sensor 16 detecting the water level in a condensate recovery tank 17 located at the bottom of the condenser 13. Below the condensate recovery tank 17 is a condensate tank 18 After the condenser 13, that is to say downstream in the direction of circulation of the vapor, the main pipe in closed circuit 4 comprises a solenoid valve 19 connected in series.
- the pipe 4 is then connected to the inlet of a superheater 21.
- This superheater 21 comprises an electric heating circuit 22 producing superheating of the steam at a temperature ranging from 102 ° C to 180 ° C.
- a solenoid valve 23 is connected to the pipe 4 to allow air to be admitted into the main circuit.
- the steam generator 8 could be associated with the superheater 21, forming a single unit supplying heat. steam superheated from liquid water.
- the installation can also include a dehydrator
- the dehydrator 24 connected in parallel to the solenoid valve 19 and connected to the main pipe 4, on either side of the solenoid valve 19, by two solenoid valves 25 and 26.
- the dehydrator 24 comprises a matrix of a desiccant material capable of absorb or adsorb water vapor and can be regenerated by heating by means of an electric heater 27.
- the temperature of the fluid (water vapor and / or air) flowing in the main circuit 4 is controlled by means of two thermal probes 28, 29 mounted respectively at the inlet and at the outlet of the enclosure 1, so detecting the inlet temperatures T1 and outlet temperatures T2 of the steam passing through the enclosure 1.
- the various solenoid valves 5,6,7,11,19,23,25,26, the heating circuit 12 of the steam generator 8, the heating circuit 22 of the superheater 21 and the heating device 27 of the dehydrator 24 are connected to a general automatic control circuit 31 which regulates the operation of the installation.
- This device 31 is also connected to the centrifugal fan 3 to control the starting and stopping of this fan.
- the device 31 also receives information from * the level sensor 16 of the condenser 13 and the thermal probes 28 and 29.
- the drying process comprises a first phase during which the moist air normally present in the main circuit 4 is replaced by steam, superheated or not, circulating in an open circuit.
- This humid air is in enclosure 1 and 10 the humidity and the temperature of this air are variable.
- the automatic control device 31 causes several simultaneous operations, namely, starting the steam generator 8, so as to produce in this steam generator a temperature of 15 102 ° C, l opening of the solenoid valves 5 and 7, closing of the solenoid valve 6, starting the fan 3 and possibly starting the superheater 21.
- the fan 3 creates a vacuum inside the enclosure 1, if although the steam produced by the steam generator 8 20 flows successively through the solenoid valve 7 open, the main pipe 4, the condenser 13 whose external cooling system is stopped during this phase and the solenoid valve 19 open and it is introduced into the superheater 21 then into the enclosure 1 and this vapor drives out 25.
- This first phase of flushing and replacing the humid air with water vapor, possibly overheated lasts a predetermined time 0 which can be easily calculated from the volume known to the facility.
- the automatic control device 31 causes the solenoid valves 5,7 to close, the steam generator 8 to stop and the solenoid valve 6 to open, which establishes a closed circuit for the subsequent circulation of the steam. .
- the drying process then passes to a second phase or main phase during which the laundry contained in the enclosure 1 is dried by the superheated steam and the water extracted from the laundry is condensed continuously in the condenser 13.
- the automatic control device 31 causes the superheater 21 to be put into service, if it was not already there during the first phase of flushing the air.
- the fan 3 continues to rotate, producing the circulation in a closed circuit of the steam which is superheated in the superheater 21.
- part of the steam condenses and the condenser thus removes a progressively increasing amount of water from the closed circuit, allowing optimal operation of the dryer.
- the power of the condenser 13 is controlled by the temperature T2 at the outlet of the steam from the enclosure 1. In fact, as the drying progresses, the flow of water extracted from the laundry decreases, the temperature T1 increases and the power of the condenser 13 decreases.
- the level of condensate collected in the recuperator 17 is detected by the float
- This sensor 16 makes it possible, together with the temperature probes 28 and 29, to determine the end of drying. In other words, when the level sensor 16 detects that the level of water condensed in the condensate collector, 17 hardly changes any more and the temperature probes 28 and 29 indicate that the inlet temperatures T1 and outlet T2 are practically identical, this means that the laundry has reached its final drying point. At this time, the automatic control device 31 automatically stops the drying cycle.
- the main phase of drying using superheated steam can optionally be followed by a third phase of drying using dry air.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/142,014 US6161306A (en) | 1996-03-07 | 1997-03-07 | Method and apparatus for drying a load of moist fibrous material, particularly a load of laundry |
DE69700878T DE69700878T2 (de) | 1996-03-07 | 1997-03-07 | Verfahren und einrichtung zum trocknen einer menge feuchten fasrigen materials insbesondere von wäsche |
EP97908322A EP0885323B1 (fr) | 1996-03-07 | 1997-03-07 | Procede et installation de sechage d'une masse de matiere fibreuse humide, notamment d'une masse de linge |
DK97908322T DK0885323T3 (da) | 1997-03-07 | 1997-03-07 | Fremgangsmåde og indretning til tørring af en samling fugtigt, fiberholdigt materiale, især en samling af linned |
GR990402977T GR3032026T3 (en) | 1996-03-07 | 1999-12-02 | Method and apparatus for drying a load of moist fibrous material, particularly a load of laundry |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9602895A FR2745896B1 (fr) | 1996-03-07 | 1996-03-07 | Procede et installation de sechage d'une masse de matiere fibreuse humide, notamment d'une masse de linge |
FR96/02895 | 1996-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997033032A1 true WO1997033032A1 (fr) | 1997-09-12 |
Family
ID=9489965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1997/000408 WO1997033032A1 (fr) | 1996-03-07 | 1997-03-07 | Procede et installation de sechage d'une masse de matiere fibreuse humide, notamment d'une masse de linge |
Country Status (10)
Country | Link |
---|---|
US (1) | US6161306A (fr) |
EP (1) | EP0885323B1 (fr) |
AT (1) | ATE187212T1 (fr) |
CA (1) | CA2248172A1 (fr) |
DE (1) | DE69700878T2 (fr) |
ES (1) | ES2139447T3 (fr) |
FR (1) | FR2745896B1 (fr) |
GR (1) | GR3032026T3 (fr) |
PT (1) | PT885323E (fr) |
WO (1) | WO1997033032A1 (fr) |
Cited By (6)
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FR2785372A1 (fr) * | 1998-11-02 | 2000-05-05 | Armines Ass Pour La Rech Et Le | Procede et installation de sechage d'une masse de matiere fibreuse |
EP1297289A1 (fr) * | 2000-07-05 | 2003-04-02 | Smart Clean | Lave-linge et sechoir combines en circuit ferme |
EP1147252B1 (fr) * | 1999-08-09 | 2004-08-18 | Aktiebolaget Electrolux | Machine a laver le linge avec sechage a vapeur |
KR20050115995A (ko) * | 2004-06-04 | 2005-12-08 | 주식회사 대우일렉트로닉스 | 다림질 기능을 갖는 드럼 세탁기 |
EP1798325A1 (fr) * | 2005-12-15 | 2007-06-20 | Brandt Industries SAS | Machine à sécher le linge comprenant un réservoir liquide |
EP1798324A1 (fr) * | 2005-12-15 | 2007-06-20 | Brandt Industries SAS | sèche-linge comprennant un réservoir de liquide |
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DE10030531B4 (de) * | 2000-06-28 | 2004-08-26 | Multitroc Patentverwertungsgesellschaft Mbh & Co.Kg | Verfahren und Vorrichtung zur bügelfreien Trocknung von feuchtem Gut, insbesondere von feuchter Wäsche bzw. Kleidung |
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JP2798569B2 (ja) * | 1992-11-25 | 1998-09-17 | 松下電器産業株式会社 | 乾燥処理装置 |
GB9317727D0 (en) * | 1993-08-26 | 1993-10-13 | Heat Win Ltd | Method and apparatus for continous drying in superheated steam |
FR2723970B1 (fr) * | 1994-08-09 | 1996-09-20 | Ilsa Spa | Procede de nettoyage en milieu liquide de pieces d'etoffes ou de vetements et l'application de sa mise en oeuvre |
US5911937A (en) * | 1995-04-19 | 1999-06-15 | Capitol Specialty Plastics, Inc. | Desiccant entrained polymer |
-
1996
- 1996-03-07 FR FR9602895A patent/FR2745896B1/fr not_active Expired - Fee Related
-
1997
- 1997-03-07 ES ES97908322T patent/ES2139447T3/es not_active Expired - Lifetime
- 1997-03-07 US US09/142,014 patent/US6161306A/en not_active Expired - Fee Related
- 1997-03-07 AT AT97908322T patent/ATE187212T1/de not_active IP Right Cessation
- 1997-03-07 EP EP97908322A patent/EP0885323B1/fr not_active Expired - Lifetime
- 1997-03-07 PT PT97908322T patent/PT885323E/pt unknown
- 1997-03-07 CA CA002248172A patent/CA2248172A1/fr not_active Abandoned
- 1997-03-07 WO PCT/FR1997/000408 patent/WO1997033032A1/fr active IP Right Grant
- 1997-03-07 DE DE69700878T patent/DE69700878T2/de not_active Expired - Fee Related
-
1999
- 1999-12-02 GR GR990402977T patent/GR3032026T3/el unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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GB443672A (en) * | 1934-05-15 | 1936-03-04 | Sarl Ganeval & Saint Genis | Method and machine for the treatment of textile material |
FR1003692A (fr) * | 1947-02-13 | 1952-03-20 | Perfectionnements apportés aux installations à laver le linge, comportant un dispositif de séchage du linge à l'aide de la vapeur | |
EP0026716A1 (fr) * | 1979-10-01 | 1981-04-08 | Centre Technique Industriel dit INSTITUT TEXTILE DE FRANCE | Procédé et installation de diminution de la teneur en liquide d'une matière poreuse à l'aide de vapeur dudit liquide surchauffée |
WO1989004392A1 (fr) * | 1987-11-12 | 1989-05-18 | Thomas John Stubbing | Procede et appareil de sechage efficace du point de vue de la consommation d'energie |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2785372A1 (fr) * | 1998-11-02 | 2000-05-05 | Armines Ass Pour La Rech Et Le | Procede et installation de sechage d'une masse de matiere fibreuse |
WO2000026595A1 (fr) * | 1998-11-02 | 2000-05-11 | Armines | Procede et installation de sechage d'une masse de matiere fibreuse |
EP1147252B1 (fr) * | 1999-08-09 | 2004-08-18 | Aktiebolaget Electrolux | Machine a laver le linge avec sechage a vapeur |
EP1297289A1 (fr) * | 2000-07-05 | 2003-04-02 | Smart Clean | Lave-linge et sechoir combines en circuit ferme |
EP1297289A4 (fr) * | 2000-07-05 | 2004-03-10 | Smart Clean | Lave-linge et sechoir combines en circuit ferme |
KR20050115995A (ko) * | 2004-06-04 | 2005-12-08 | 주식회사 대우일렉트로닉스 | 다림질 기능을 갖는 드럼 세탁기 |
EP1798325A1 (fr) * | 2005-12-15 | 2007-06-20 | Brandt Industries SAS | Machine à sécher le linge comprenant un réservoir liquide |
EP1798324A1 (fr) * | 2005-12-15 | 2007-06-20 | Brandt Industries SAS | sèche-linge comprennant un réservoir de liquide |
Also Published As
Publication number | Publication date |
---|---|
CA2248172A1 (fr) | 1997-09-12 |
GR3032026T3 (en) | 2000-03-31 |
US6161306A (en) | 2000-12-19 |
ES2139447T3 (es) | 2000-02-01 |
DE69700878D1 (de) | 2000-01-05 |
EP0885323B1 (fr) | 1999-12-01 |
DE69700878T2 (de) | 2000-05-31 |
FR2745896B1 (fr) | 1998-04-24 |
EP0885323A1 (fr) | 1998-12-23 |
PT885323E (pt) | 2000-05-31 |
ATE187212T1 (de) | 1999-12-15 |
FR2745896A1 (fr) | 1997-09-12 |
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