EP0430197A1 - Household laundry drier - Google Patents

Household laundry drier Download PDF

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Publication number
EP0430197A1
EP0430197A1 EP90122719A EP90122719A EP0430197A1 EP 0430197 A1 EP0430197 A1 EP 0430197A1 EP 90122719 A EP90122719 A EP 90122719A EP 90122719 A EP90122719 A EP 90122719A EP 0430197 A1 EP0430197 A1 EP 0430197A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
hot water
drying air
water network
clothes dryer
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Withdrawn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
EP90122719A
Other languages
German (de)
French (fr)
Inventor
Günter Ing.(grad.) Ott
Hans-Joachim Dipl.-Ing.(Fh) Klug
Rainer Dr. Dipl.-Phys. Stamminger
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0430197A1 publication Critical patent/EP0430197A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a household tumble dryer with a laundry drum driven by a motor and a device arranged outside the laundry drum in the drying air stream for heating the drying air conveyed through the laundry drum by means of a blower.
  • a tumble dryer of this type is known from DE-A-33 40 313.
  • the device for heating the drying air to be conveyed through the laundry drum consists of an electric panel heater.
  • the invention has for its object to develop a tumble dryer of the type in question so that primarily primary energy can be saved. Furthermore, its use value should be increased.
  • the solution to this problem according to the invention is that the clothes dryer is provided with a connection for the hot water network of a household and that the device for heating the drying air consists of a heat exchanger connected to the hot water network.
  • the invention provides a clothes dryer which is characterized by a lower consumption of primary energy and is therefore particularly environmentally friendly.
  • the domestic hot water network for supplying the heat exchanger with hot water can be the household heating circuit, the domestic hot water line or the district heating network.
  • an electric heating element can also be arranged in the drying air circuit. If there is no hot water available for the heat exchanger, the electric heating element alone is switched on to warm up the drying air flow. If the available hot water is not sufficient for the heat exchanger to work satisfactorily, the electrical heating element can e.g. can be switched on with reduced heating output. This means that both the hot water-fed heat exchanger and the electric heating element are both put into operation together.
  • the heat exchanger can be connected to the hot water network via an inlet and an outlet line.
  • the connecting lines can be flexible lines.
  • the connection to the hot water network can be made via separable coupling pieces.
  • Various control elements are expediently assigned to the inlet and / or outlet line for the heat exchanger.
  • Such regulating or control elements have the task of interrupting the hot water flow to the heat exchanger when, for example, the laundry drying process has ended, and of regulating the water flow in such a way that certain drying temperatures are reached or not exceeded.
  • regulating or control elements are intended to ensure that the drying process is terminated if drying temperatures which are too high occur or if there is no longer sufficient warm water available.
  • the flow of water through the heat exchanger should also be regulated accordingly.
  • the heat exchanger By interposing a feed pump in the hot water circuit hot water network and heat exchanger, a sufficient flow of hot water through the heat exchanger is guaranteed. It is expedient to design the heat exchanger as an independent assembly or structural unit, so that such a problem-free existing dryer of a conventional type with an electrical Heating element in the drying air flow can be attached as an additional device.
  • the hot water conveyed by the heat exchanger is returned to the hot water network after leaving the heat exchanger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

Household laundry drier having a motor-driven washing drum and a device, arranged outside the washing drum in the flow of drying air, for warming the drying air conveyed through the washing drum by means of a fan. The laundry drier is provided with a connection for the domestic hot water system. The device for warming the drying air consists of a heat exchanger connected to the hot water system.

Description

Die Erfindung betrifft einen Haushalt-Wäschetrockner mit einer von einem Motor angetriebenen Wäschetrommel sowie einer außerhalb der Wäschetrommel im Trocknungsluftstrom angeordneten Einrichtung zum Erwärmen der durch die Wäschetrommel mittels eines Gebläses geförderten Trocknungsluft.The invention relates to a household tumble dryer with a laundry drum driven by a motor and a device arranged outside the laundry drum in the drying air stream for heating the drying air conveyed through the laundry drum by means of a blower.

Aus der DE-A-33 40 313 ist ein Wäschetrockner dieser Art bekannt. Bei diesem Wäschetrockner besteht die Einrichtung zum Erwärmen der durch die Wäschetrommel zu fördernden Trocknungsluft aus einem elektrischen Flächenheizkörper.A tumble dryer of this type is known from DE-A-33 40 313. In this tumble dryer, the device for heating the drying air to be conveyed through the laundry drum consists of an electric panel heater.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, einen Wäschetrockner der in Rede stehenden Art so weiterzubilden, daß vorrangig Primärenergie eingespart werden kann. Ferner soll dessen Gebrauchswert erhöht werden.Based on this prior art, the invention has for its object to develop a tumble dryer of the type in question so that primarily primary energy can be saved. Furthermore, its use value should be increased.

Die Lösung dieser Aufgabe gemäß der Erfindung besteht darin, daß der Wäschetrockner mit einem Anschluß für das Warmwassernetz eines Haushalts versehen ist und daß die Einrichtung zum Erwärmen der Trocknungsluft aus einem mit dem Warmwassernetz in Verbindung stehenden Wärmetauscher besteht.The solution to this problem according to the invention is that the clothes dryer is provided with a connection for the hot water network of a household and that the device for heating the drying air consists of a heat exchanger connected to the hot water network.

Durch die Erfindung wird ein Wäschetrockner geschaffen, der sich durch einen geringeren Verbrauch an Primärenergie auszeichnet und damit besonders umweltfreundlich ist.The invention provides a clothes dryer which is characterized by a lower consumption of primary energy and is therefore particularly environmentally friendly.

Das Haushalt-Warmwassernetz zur Versorgung des Wärmetauschers mit Warmwasser kann der Haushalt-Heizungskreislauf die Haushalt-Brauchwasserleitung oder das Fernwärmenetz sein. Neben dem vom Warmwassernetz gespeisten Wärmetauscher zum Erwärmen der Trocknungsluft kann auch noch ein elektrisches Heizelement im Trockungsluftkreis angeordnet sein. Steht einmal kein Warmwasser für den Wärmetauscher zur Verfügung, so wird zum Aufwärmen des Trocknungsluftstromes das elektrische Heizelement allein eingeschaltet. Reicht das vorhandene Warmwasser für eine zufriedenstellende Arbeitsweise des Wärmetauschers nicht aus, so kann das elektrische Heizelement z.B. mit verminderter Heizleistung zugeschaltet werden. Damit sind sowohl der warmwassergespeiste Wärmetauscher als auch das elektrische Heizelement beide zusammen in Betrieb gesetzt.The domestic hot water network for supplying the heat exchanger with hot water can be the household heating circuit, the domestic hot water line or the district heating network. In addition to the heat exchanger fed by the hot water network for heating the drying air, an electric heating element can also be arranged in the drying air circuit. If there is no hot water available for the heat exchanger, the electric heating element alone is switched on to warm up the drying air flow. If the available hot water is not sufficient for the heat exchanger to work satisfactorily, the electrical heating element can e.g. can be switched on with reduced heating output. This means that both the hot water-fed heat exchanger and the electric heating element are both put into operation together.

Der Wärmetauscher ist über eine Zu- und eine Ablaufleitung mit dem Warmwassernetz verbindbar. Die Verbindungsleitungen können flexible Leitungen sein. Die Verbindung mit dem Warmwassernetz kann dabei über trennbare Kupplungsstücke vorgenommen werden. Der Zu- und/oder der Ablaufleitung für den Wärmetauscher sind zweckmäßig diverse Regel- oder Steuerglieder zugeordnet. Solche Regel- oder Steuerglieder haben die Aufgabe, den Warmwasserdurchfluß zum Wärmetauscher zu unterbrechen, wenn beispielsweise der Wäschetrockenvorgang beendet ist, und den Wasserdurchfluß so zu regeln, daß bestimmte Trocknungstemperaturen erreicht bzw. nicht überschritten werden. Ferner soll durch solche Regel- oder Steuerglieder sichergestellt werden, daß der Trocknungsvorgang abgebrochen wird, wenn zu hohe Trocknungstemperaturen auftreten oder wenn kein ausreichend temperiertes Warmwasser mehr zur Verfügung steht. Auch soll der Durchfluß der Wassermenge durch den Wärmetauscher entsprechend geregelt werden. Durch Zwischenschalten einer Förderpumpe in den Warmwasserkreislauf Warmwassernetz und Wärmetauscher wird ein ausreichender Durchfluß von Warmwasser durch den Wärmetauscher gewährleistet. Zweckmäßig ist es, den Wärmetauscher als eigenständige Montage- bzw. Baueinheit auszubilden, so daß ein solcher problemlos an vorhandene Wäschetrockner üblicher Bauart mit einem elektrischen Heizelement im Trocknungsluftstrom als Zusatzeinrichtung angebracht werden kann.The heat exchanger can be connected to the hot water network via an inlet and an outlet line. The connecting lines can be flexible lines. The connection to the hot water network can be made via separable coupling pieces. Various control elements are expediently assigned to the inlet and / or outlet line for the heat exchanger. Such regulating or control elements have the task of interrupting the hot water flow to the heat exchanger when, for example, the laundry drying process has ended, and of regulating the water flow in such a way that certain drying temperatures are reached or not exceeded. Furthermore, such regulating or control elements are intended to ensure that the drying process is terminated if drying temperatures which are too high occur or if there is no longer sufficient warm water available. The flow of water through the heat exchanger should also be regulated accordingly. By interposing a feed pump in the hot water circuit hot water network and heat exchanger, a sufficient flow of hot water through the heat exchanger is guaranteed. It is expedient to design the heat exchanger as an independent assembly or structural unit, so that such a problem-free existing dryer of a conventional type with an electrical Heating element in the drying air flow can be attached as an additional device.

Das durch den Wärmetauscher geförderte Warmwasser wird nach Verlassen des Wärmetauschers wieder dem Warmwassernetz zugeführt.The hot water conveyed by the heat exchanger is returned to the hot water network after leaving the heat exchanger.

Claims (7)

Haushalt-Wäschetrockner mit einer von einem Motor angetriebenen Wäschetrommel sowie einer außerhalb der Wäschetrommel im Trocknungsluftstrom angeordneten Einrichtung zum Erwärmen der durch die Wäschetrommel mittels eines Gebläses geförderten Trocknungsluft, dadurch gekennzeichnet, daß der Wäschetrockner mit einem Anschluß für das Warmwassernetz eines Haushalts versehen ist und daß die Einrichtung zum Erwärmen der Trocknungsluft aus einem mit dem Warmwassernetz in Verbindung stehenden Wärmetauscher besteht.Household clothes dryer with a motor-driven clothes drum and a device arranged outside the clothes drum in the drying air stream for heating the drying air conveyed through the clothes drum by means of a blower, characterized in that the clothes dryer is provided with a connection for the hot water network of a household and that Device for heating the drying air consists of a heat exchanger connected to the hot water network. Wäschetrockner nach Anspruch 1, dadurch gekennzeichnet, daß neben den vom Warmwassernetz gespeisten Wärmetauscher noch ein elektrisches Heizelement im Trocknungsluftkreis angeordnet ist und der Wärmetauscher und das Heizelement getrennt oder gemeinsam in Betrieb setztbar sind.Clothes dryer according to claim 1, characterized in that in addition to the heat exchangers fed by the hot water network, an electric heating element is also arranged in the drying air circuit and the heat exchanger and the heating element can be operated separately or together. Wäschetrockner nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Wärmetauscher über eine Zu- und Ablaufleitung mit dem Warmwassernetz verbunden ist.Clothes dryer according to claim 1 or 2, characterized in that the heat exchanger is connected to the hot water network via an inlet and outlet line. Wärmetauscher nach Anspruch 3, dadurch gekennzeichnet, daß die Zu- und die Ablaufleitung flexible Leitungen sind und über Kupplungsstücke mit dem Warmwassernetz trennbar verbunden sind.Heat exchanger according to claim 3, characterized in that the inlet and outlet lines are flexible lines and are connected to the hot water network in a separable manner via coupling pieces. Wäschetrockner nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Zu- und/oder der Ablaufleitung des Wärmetauschers Regel- oder Steuerglieder zugeordnet sind.Clothes dryer according to claim 3 or 4, characterized in that the inlet and / or the outlet line of the heat exchanger are assigned control or control elements. Wäschetrockner nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß in den Warmwasserkreislauf Warmwassernetz und Wärmetauscher eine Pumpe zwischengeschaltet ist.Clothes dryer according to claim 1 or one of the following, characterized in that a pump is interposed in the hot water circuit hot water network and heat exchanger. Wärmetauscher nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß der Wärmetauscher als eigenständige Montage- bzw. Baueinheit ausgebildet ist.Heat exchanger according to claim 1 or one of the following, characterized in that the heat exchanger is designed as an independent assembly or structural unit.
EP90122719A 1989-12-01 1990-11-28 Household laundry drier Withdrawn EP0430197A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3939744 1989-12-01
DE3939744A DE3939744A1 (en) 1989-12-01 1989-12-01 HOUSEHOLD LAUNDRY DRYER

Publications (1)

Publication Number Publication Date
EP0430197A1 true EP0430197A1 (en) 1991-06-05

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EP90122719A Withdrawn EP0430197A1 (en) 1989-12-01 1990-11-28 Household laundry drier

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EP (1) EP0430197A1 (en)
DE (1) DE3939744A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2130967A1 (en) 2008-06-06 2009-12-09 Miele & Cie. KG Laundry treatment machine, in particular laundry dryer
EP2436829A1 (en) * 2010-09-29 2012-04-04 Tommy Eklund Method and device for drying laundry using district heating
EP2562306A1 (en) * 2011-08-24 2013-02-27 Miele & Cie. KG Tumble drier with condensation device
FR3012474A1 (en) * 2013-10-31 2015-05-01 Khouri Zaidan El ENERGY-SAID LAUNDRY SYSTEM AND TANK SYSTEM FOR AUTOMATICALLY RECOVERING AND DISCHARGING WATER RESULTING FROM CONDENSATION OR OTHERWISE
WO2016083235A1 (en) 2014-11-26 2016-06-02 Jrf Technologies Limited A clothes dryer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514914A (en) * 1984-02-16 1985-05-07 Kitzmiller George R Solar clothes dryer
DE3639314A1 (en) * 1986-11-17 1988-05-26 Mostofizadeh Ghalamfarsa Geb K Apparatus for the drying of large-surface material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514914A (en) * 1984-02-16 1985-05-07 Kitzmiller George R Solar clothes dryer
DE3639314A1 (en) * 1986-11-17 1988-05-26 Mostofizadeh Ghalamfarsa Geb K Apparatus for the drying of large-surface material

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2130967A1 (en) 2008-06-06 2009-12-09 Miele & Cie. KG Laundry treatment machine, in particular laundry dryer
DE102008027249A1 (en) 2008-06-06 2009-12-10 Miele & Cie. Kg Laundry treatment machine, in particular tumble dryer
EP2436829A1 (en) * 2010-09-29 2012-04-04 Tommy Eklund Method and device for drying laundry using district heating
EP2562306A1 (en) * 2011-08-24 2013-02-27 Miele & Cie. KG Tumble drier with condensation device
FR3012474A1 (en) * 2013-10-31 2015-05-01 Khouri Zaidan El ENERGY-SAID LAUNDRY SYSTEM AND TANK SYSTEM FOR AUTOMATICALLY RECOVERING AND DISCHARGING WATER RESULTING FROM CONDENSATION OR OTHERWISE
WO2016083235A1 (en) 2014-11-26 2016-06-02 Jrf Technologies Limited A clothes dryer

Also Published As

Publication number Publication date
DE3939744A1 (en) 1991-06-06

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