EP2436829A1 - Méthode et appareil pour le séchage de linge untilisant le chauffage urbain - Google Patents

Méthode et appareil pour le séchage de linge untilisant le chauffage urbain Download PDF

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Publication number
EP2436829A1
EP2436829A1 EP10445009A EP10445009A EP2436829A1 EP 2436829 A1 EP2436829 A1 EP 2436829A1 EP 10445009 A EP10445009 A EP 10445009A EP 10445009 A EP10445009 A EP 10445009A EP 2436829 A1 EP2436829 A1 EP 2436829A1
Authority
EP
European Patent Office
Prior art keywords
air
drying
heat exchanger
arrangement according
district heating
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.)
Withdrawn
Application number
EP10445009A
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German (de)
English (en)
Inventor
Tommy Eklund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP10445009A priority Critical patent/EP2436829A1/fr
Publication of EP2436829A1 publication Critical patent/EP2436829A1/fr
Withdrawn legal-status Critical Current

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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
    • D06F58/10—Drying cabinets or drying chambers having heating or ventilating means
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/26—Condition of the drying air, e.g. air humidity or temperature

Definitions

  • the present invention relates to the efficiency and environmental benefits of district heating.
  • Admittedly district heating initially include relatively high costs for district heating central as well as associated distribution net of high-temperature water and heat exchangers, etc. at the heat consumers but it is more efficient and cleaner for the environment than many small in different ways powered heating units and therefore it is also economically more efficient.
  • the object of the invention is to improve the use and increase the environmental benefits of district heating.
  • the above object is, in accordance with the invention, solved by the use of district heating for drying laundry. Since district heating is cheaper than electricity not only money is saved, but as a result of the district heat generation in the district heating plant having a high efficiency an over all save of energy is obtained, achieving an environmental benefit.
  • connection of the drying cabinet to district heating is advantageously via the high-temperature water system used for example for heating the air in ventilation systems. Due to the high temperature of the water the air heater volume as well as cost can be kept lower than what otherwise would have been the case.
  • Heat regulation can be executed by a thermostatic valve in the connection to the heat exchanger.
  • a thermostatic valve in the connection to the heat exchanger.
  • connection to the loop for heated tap water can comprise a thermostat that is placed so that the heated air flow pass its sensor.
  • district heating also provides a more secure installation since electricity and dust is no good combination for security reasons.
  • drawing figure 1 shows a heater for drying air according to the invention seen from a first side and figure 2 the same heater for drying air in a view perpendicular to that in figure 1 .
  • the drying air heater shown in the drawing includes an inlet 1 for air from a drying cabinet or a tumble dryer. This air that has absorbed moisture is passed through a filter 2 and then to a heat exchanger 3 (air-air) that cools the humid air so that some of the moisture in the air is condensed. The condensate is collected in a tray 4 below the heat exchanger and led from this with a condensate drain 11 further to an adequate outlet. From the heat exchanger the now dryer air is led to an air heater 5 (water-air heat exchanger) which is heated by water, either in a local heating net of the property or by in a district heating net circulating water.
  • air heater 5 water-air heat exchanger
  • air is fed through an air outlet 12 further back to the air inlet of the drying cabinet or tumble dryer via a blower 6 which sucks air from the drying cabinet or tumble dryer through the above described heater for drying air and then push the air back to drying cabinet or tumble dryer.
  • the heat exchanger is cooled by air supplied through an inlet 7 and that is discharged through an outlet 8.
  • the cooling air may for example be taken from the building exterior and also returned there.
  • the transport of cooling air is made by a fan, for example, duct fan 13 which sucks the air out of the outlet 8.
  • a damper 9 Connected to the heat exchanger 3 is a damper 9 which, if necessary, can be opened to lead a major or minor part of the air past the heat exchanger, for instance at the formation of ice in the heat exchanger.
  • air fed to the building's exterior can be replaced by cold outside air that flows into, for example an inlet to an air distribution space in front of the air heater.
  • a reduction of emission of moist condensing air eliminates or reduces frost damages and wear of the facade.
  • the ducts that go to the outside of the property has connectable ducts ending in the laundry room.
  • the heating unit can be arranged at the side of or on top of the drying cabinet or tumble dryer.
  • the air heater can advantageously be connected directly to the high-temperature water pipes of the district heating network and arranged in connection with the heat exchangers for radiator water, domestic hot tap water or a high-temperature water loop feeding the air heater in the ventilation facilities.
  • the heated air can be fed through tubes 2 to one or several drying cabinets and/or tumble dryers.
  • the air is fed to the respective drying device to its inlet and the air is then passed out of the drying device in a conventional manner, i.e. for example the environment (outdoor or just out in the room).
  • the air temperature supplied from the drying air heater may be temperature regulated by controlling the high-temperature water inflow with a bypass and a three-way valve between inlet and outlet pipes for the high-temperature water, or with a circulation pump. Pump or bypass can be controlled with a temperature sensor in the outlet channel for the hot air. Alternatively, a thermostatic device can be used. In order to individually control different drying cabinets or tumble dryers, you can provide them with air bypasses or dampers that can also be used for setting different desired drying temperatures.
  • the outlet air from tumble dryer or drying cabinet can be returned to the inlet side of the heater for drying air. Since the air heater in this way reach a higher initial temperature for the air also the outlet temperature to drying cabinet and/or tumble dryers will be higher enabling in turn a faster drying.
  • the temperature in the air duct back to the air heater also increases so that the temperature difference relative the room air is increased. With a return air tube of metal a chilling of the return air is obtained, which provides a condensation of some of the moisture in the return air that become more dry and thus dries better.
  • the condensed water can be discharged at an appropriate location. To enhance the above effect one can even arrange a condenser in the return tube for air back into the heat exchanger. Room air can be blown through the condenser with a fan.
  • a filter can advantageously be positioned in front of the condenser in the return air tube.
  • both tumble dryers and drying cabinets are equipped with fans, one can also arrange a fan in front of the air heater or between this and the drying equipments to ensure a good flow to these.
  • the hot air temperature can also be regulated by the fan within certain limits. It can also be of advantage to arrange an inlet filter in front of the heat exchanger.
  • laundry and drying spaces are so arranged in relation to the connection of the district heating to the heat exchangers for radiator water and tap water so that also the hot air exchanger can be arranged in the same place, so that compact and safe hot water installation can be achieved for the connection of the district heating. If the distance is too large, it is conceivable to arrange an intermediate heat exchanger between the primary water and that fed to the hot air exchanger.
  • the temperature may be increased by the addition of hot air directly from the hot air heater.
  • the hot air generation can be adapted or respectively be switched on and off depending on the degree of utilization of connected drying devices.
  • apartment buildings and launderers the invention can be expected to be a good solution since they can negotiate for a good energy rate, which in turn can generate economic possibility for the installation of an extra meter only for the drying energy.
  • district heating is combined with waste incineration, resulting in both an efficient and eco-friendly way to take care of garbage and an effective way to utilize the generated heat that can be distributed with a district heating network.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP10445009A 2010-09-29 2010-09-29 Méthode et appareil pour le séchage de linge untilisant le chauffage urbain Withdrawn EP2436829A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10445009A EP2436829A1 (fr) 2010-09-29 2010-09-29 Méthode et appareil pour le séchage de linge untilisant le chauffage urbain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10445009A EP2436829A1 (fr) 2010-09-29 2010-09-29 Méthode et appareil pour le séchage de linge untilisant le chauffage urbain

Publications (1)

Publication Number Publication Date
EP2436829A1 true EP2436829A1 (fr) 2012-04-04

Family

ID=43742379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10445009A Withdrawn EP2436829A1 (fr) 2010-09-29 2010-09-29 Méthode et appareil pour le séchage de linge untilisant le chauffage urbain

Country Status (1)

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EP (1) EP2436829A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20152115A1 (it) * 2015-07-13 2017-01-13 Triveneta Grandi Impianti S R L Asciugatrice per tessuti o simili

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB820284A (en) * 1956-07-11 1959-09-16 Radiation Ltd Space and water-heating system
EP0050690A1 (fr) * 1980-10-28 1982-05-05 GebràœDer Sulzer Aktiengesellschaft Chauffage à distance au moyen d'air chaud
DE3639314A1 (de) * 1986-11-17 1988-05-26 Mostofizadeh Ghalamfarsa Geb K Vorrichtung zum trocknen von grossflaechigem gut
EP0430197A1 (fr) * 1989-12-01 1991-06-05 Licentia Patent-Verwaltungs-GmbH Sèche linge domestique
WO1995016066A1 (fr) * 1993-12-09 1995-06-15 Franco Carloni Appareil electromenager de lavage et/ou de sechage a l'aide d'eau chaude provenant d'une installation de chauffage central et circulant dans des serpentins
US5573183A (en) * 1992-03-10 1996-11-12 Abb Flakt Ab Method and apparatus for heating building and ventilation air
US6941680B1 (en) * 2003-07-03 2005-09-13 Robert Zielewicz Cost-efficient clothes dryer
DE102008027249A1 (de) * 2008-06-06 2009-12-10 Miele & Cie. Kg Wäschebehandlungsmaschine insbesondere Wäschetrockner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB820284A (en) * 1956-07-11 1959-09-16 Radiation Ltd Space and water-heating system
EP0050690A1 (fr) * 1980-10-28 1982-05-05 GebràœDer Sulzer Aktiengesellschaft Chauffage à distance au moyen d'air chaud
DE3639314A1 (de) * 1986-11-17 1988-05-26 Mostofizadeh Ghalamfarsa Geb K Vorrichtung zum trocknen von grossflaechigem gut
EP0430197A1 (fr) * 1989-12-01 1991-06-05 Licentia Patent-Verwaltungs-GmbH Sèche linge domestique
US5573183A (en) * 1992-03-10 1996-11-12 Abb Flakt Ab Method and apparatus for heating building and ventilation air
WO1995016066A1 (fr) * 1993-12-09 1995-06-15 Franco Carloni Appareil electromenager de lavage et/ou de sechage a l'aide d'eau chaude provenant d'une installation de chauffage central et circulant dans des serpentins
US6941680B1 (en) * 2003-07-03 2005-09-13 Robert Zielewicz Cost-efficient clothes dryer
DE102008027249A1 (de) * 2008-06-06 2009-12-10 Miele & Cie. Kg Wäschebehandlungsmaschine insbesondere Wäschetrockner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20152115A1 (it) * 2015-07-13 2017-01-13 Triveneta Grandi Impianti S R L Asciugatrice per tessuti o simili

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