EP0088052A1 - Method of washing laundry, and continuous batch-type washing machine for carrying out the method - Google Patents

Method of washing laundry, and continuous batch-type washing machine for carrying out the method Download PDF

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Publication number
EP0088052A1
EP0088052A1 EP83810079A EP83810079A EP0088052A1 EP 0088052 A1 EP0088052 A1 EP 0088052A1 EP 83810079 A EP83810079 A EP 83810079A EP 83810079 A EP83810079 A EP 83810079A EP 0088052 A1 EP0088052 A1 EP 0088052A1
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Prior art keywords
water
rinse
laundry
chambers
chamber
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EP83810079A
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German (de)
French (fr)
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EP0088052B2 (en
EP0088052B1 (en
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René Gasser
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Maschinenfabrik Ad Schulthess and Co AG
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Maschinenfabrik Ad Schulthess and Co AG
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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
    • D06F31/00—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies
    • D06F31/005—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies consisting of one or more rotating drums through which the laundry passes in a continuous flow

Definitions

  • the present invention relates to a method for washing laundry according to the preamble of independent patent claim 1, and to a continuous washing machine according to the preamble of independent patent claim 5.
  • Continuous washing machines are known; one such is described in DE-A 29 49 228.
  • This washing machine has a washing tube which can be rotated about its longitudinal axis.
  • washing chambers are separated, which are separated from each other in terms of bath during the washing process.
  • the chambers are connected to lines which can be shut off by valves in such a way that a counterflow of liquid is achieved for the movement of the laundry. Due to the possibility of not only feeding this countercurrent into the chamber just preceding, but also of skipping individual ones, different laundry items can be washed in batches.
  • Such a washing machine requires ten compartments for the laundry, namely two for the soaking zone, for example five as assigned to the washing zones nete wash chambers and three chambers for performing three rinse cycles.
  • the fleet is specifically adjusted to the respective needs by pumping the liquid and passing it either into an intermediate container or directly into the subsequent chamber. This enables the fleet to run with the laundry several times when the laundry is of the same type and with different laundry be cached. Because this can only be achieved with a double drum machine, in which each chamber is provided in its own housing with its own drive for the chamber, the effort in material and labor for assembling such a continuous washing machine is great.
  • the continuous washing machine according to FIG. 1 consists of five chambers Kl - K5 combined to form a tube, of which the two outer chambers Kl and K5 are provided with an input funnel E or with an output chute AG. These two chambers K1 and K5 also have a greater axial length than the other chambers K2-K4.
  • the chamber K2 because the dry, airy, concentrated laundry takes up more space than the wet heavier laundry, and the chamber K5 because the level has to be kept lower than for the other washing processes due to the discharge chute AG, so that the same liquor ratio also exists in the chamber K5 as is made possible in chambers K2 to K4.
  • the chamber K1 is the prewash stage
  • the chambers K2 and K3 form the final wash stage
  • the chambers K4 and K5 represent the rinse stage.
  • the two chambers K2 and K3 are equipped with thermal insulation materials so that the heat loss emitted to the environment can be kept as low as possible.
  • the usual water requirement can be reduced from 30 liters of water per kg of dry laundry to about 10 liters, and the energy requirement can be reduced to half the energy otherwise required by utilizing the heat in the recovered water.
  • the chambers K2, K4 and K5 each have a lock with supply lines K2E, K4E and K5E and exit lines K2W, K4W and K5W for the supply and removal of the necessary liquids in addition to the heat supply.
  • the feed line KlE to the hopper E causes the washing in of the dry laundry and at the same time the soaking.
  • the last rinse water from chamber K5 as splash water SW reaches the laundry in a dewatering device (not shown), which can be a centrifuge or a press.
  • the control for assigning the rinse water to the tanks A, B, C or the removal of the prewash water VW and the clear wash water KW is controlled by valves Vl - V5, and the supply of the liquids to the chambers K2, K4 and K5 including the filling funnel takes place via the pumps P1 - P3 and a valve V6, which is connected to the fresh water line Z.
  • the fresh water line Z is connected to all three containers A, B, C via and not individually identified valves VZ a sewage line AW is fed accordingly with valves VA from the tanks A, B, C and also receives the sewage from the chambers K2 and K4 via valves Vl and V2 with the lines L8 and Lll.
  • the first rinse water Spl from the previous wash cycle is located in the container A, the remaining containers B and C are empty except for residual water.
  • the laundry was carried from each chamber to the next stage.
  • the prewashed laundry with the prewash liquor VW is thus in the chamber K2 and the clearwashed laundry in the rinse wash liquor KW is in the chamber K4.
  • the valves V1 and V2 are opened so that the pre-wash liquor VW can reach the drain via the lines L5 and L8 from the lock exit K2W and the clear wash liquor KW can reach the drain via the lines L6 and Lll.
  • valve V4 is also opened in order to introduce the second rinse water Sp2 from the lock exit K4W via the lines L7 and L10 into the container B.
  • This flushing water Sp2 is fed with the pump P1 via line L1 to the flushing inlet K1E in the filling funnel E.
  • valves V1, V2, V4 are thus closed and the pump P1 is switched off.
  • the pumps P2 and P3 are also switched on and the valve V6 is opened.
  • the first flushing water Spl of the previous cycle is thus discharged from the container A via the Line L2 and the inlet line K2E are supplied to the chamber K2 With the pump P3, the water from the tank C is fed into the chamber K4 as the first rinse water Spl via the line L3, and the valve V6 is used to supply fresh water from the line Z via the line L4 fed to the chamber K5 as the third rinse water Sp3.
  • valves V3 for draining the first rinsing water Spl into the container A and V5 for draining the third rinsing water Sp3 into the container C are opened at time 4 '.
  • container B there can still be residual water overflowing splash water SW from tank C can be located.
  • the pump P3 is switched on in order to supply the water from the container C via the line L3 as the second rinse water Sp2 to the chamber K4.
  • fresh water is discharged from the line via the valve V6 and the line L4 Z is fed as fourth rinse water Sp4 into the chamber K4.
  • the wash cycle has ended at time 8 '.
  • the tube was swung back and forth to wash the laundry in a known manner. So that the water levels in the individual chambers K1, K2, K4 and K5 are adapted to the respective requirements, the pump P1 is timed, and the pumps P2, P3 and the valve V6 are switched by means of level switches by the levels in the associated chambers K2, K4 and K5 controlled.
  • the laundry is heated to this 40 ° in the prewash cycle. As is known, this temperature must not be exceeded due to protein fixation.
  • the 60 ° warm first rinse water Spl is used for clear washing, so that a mixing temperature of about 50 0 arises, which is now to be warmed to rinse temperature.
  • This intersecting use of the first and second rinse water Spl and Sp2 enables the above-mentioned short clear wash time of 16 minutes to be achieved and, in addition to saving water by around 66%, heat energy can be saved by around 50% and additionally results in a cycle time for the laundry of 40 minutes.
  • the tube with the chambers K1-K5 is arranged above the containers A, B, C and is supported on a frame R in a rolling manner in a known manner.
  • the drive motor M with gear and friction rollers or gear connection to the tube.
  • the frame supports RS shown serve for fastening cover plates, of which a cover plate P can be seen behind the pipe. The front ones are removed accordingly.
  • this washing machine in the washroom it is therefore sufficient for this washing machine in the washroom to have a drain channel for the liquids to be removed from prewash water VW, clear wash water KW and cleaning water RW from the waste water line A, and also a connection for the Fresh water supply Z and a device for heating the liquor to be provided in the chamber K4.
  • An example embodiment for an hourly laundry cycle of 150-300 kg has a length of around 3.5 m with an installation height of just over 2.5 m.

Abstract

Verfahren und Durchlaufwaschmaschine zum Waschen von Wäsche, bestehend aus einem durch mit einer Übergabeöffnung versehenen Trennwände in Kammern (K1-K5) unterteilten Rohr, wobei die mit der Übergabe der Wäsche von jeweils einer Kammer zur andern bestimmte Behandlungszeit der Wäsche in den mit Schleusen versehenen Kammern halbiert wird, indem nach der halben Taktzeit die Lauge oder das Spülwasser abgelassen wiederverwendet und neue Lauge oder neues Spülwasser eingespeist wird.Process and continuous washing machine for washing laundry, consisting of a tube divided by compartments with a transfer opening into chambers (K1-K5), the treatment time of the laundry determined in each case from one chamber to another in the chambers provided with locks is halved by draining the lye or the rinsing water after half the cycle time and feeding in new lye or new rinsing water.

Description

Die vorliegende Erfindung betrifft ein Verfahren zum Waschen von Wäsche gemäss dem Oberbegriff des unabhängigen Patentanspruchs 1, sowie eine Durchlaufwaschmaschine gemäss dem Oberbegriff des unabhängigen Patentanspruchs 5.The present invention relates to a method for washing laundry according to the preamble of independent patent claim 1, and to a continuous washing machine according to the preamble of independent patent claim 5.

Durchlaufwaschmaschinen sind bekannt; eine solche ist in der DE-A 29 49 228 beschrieben. Diese Waschmaschine besitzt eine um ihre Längsachse drehbare Waschröhre. In dieser Waschröhre sind Waschkammern abgeteilt, die beim Waschvorgang badmässig voneinander getrennt sind. Die Kammern sind mit durch Ventile absperrbaren Leitungen derart verbunden, dass ein Gegenstrom von Flüssigkeit zur Fortbewegung der Wäsche erzielt wird. Durch die Möglichkeit, diesen Gegenstrom nicht nur in die gerade vorangehende Kammer einzuspeisen, sondern auch einzelne zu überspringen, kann unterschiedliche Wäsche postenweise gewaschen werden. Eine solche Waschmaschine benötigt zehn Kammern für die Wäsche, nämlich zwei für die Einweichzone, beispielsweise fünf als den Waschzonen zugeordnete Waschkammern und drei Kammern zur Durchführung von drei Spülgängen.Continuous washing machines are known; one such is described in DE-A 29 49 228. This washing machine has a washing tube which can be rotated about its longitudinal axis. In this washing tube, washing chambers are separated, which are separated from each other in terms of bath during the washing process. The chambers are connected to lines which can be shut off by valves in such a way that a counterflow of liquid is achieved for the movement of the laundry. Due to the possibility of not only feeding this countercurrent into the chamber just preceding, but also of skipping individual ones, different laundry items can be washed in batches. Such a washing machine requires ten compartments for the laundry, namely two for the soaking zone, for example five as assigned to the washing zones nete wash chambers and three chambers for performing three rinse cycles.

Abgesehen davon, dass in dieser Ausführungsform eine Doppeltrommelmaschine beschrieben ist, kann auch hier der Aufwand erkannt werden, den es braucht, um die Kammern badmässig voneinander abzutrennen und in den unvermeidlichen Trennwänden noch Durchgänge auszubilden, um die Wäsche taktweise von einer Kammer in die nächste zu transportieren.In addition to the fact that a double drum machine is described in this embodiment, the effort required to separate the chambers from each other in terms of the bath and to form passages in the inevitable partition walls can also be recognized here in order to cycle the laundry from one chamber to the next transport.

Eine Verminderung der Anzahl Kammern ist dagegen mit der Durchlaufwaschmaschine gemäss der DE-A 29 00 467 möglich, nämlich zwei Kammern für die Vorwasch- oder Einweichzone, drei Kammern für die Waschzone und zwei für die Spülzone, eine letzte ist als Appretierzone bestimmt; somit sind höchstens acht Kammern notwendig, und wenn das nicht für jede Wäsche notwendige Appretieren ausserhalb der Waschröhre durchgeführt wird, genügen bei dieser Waschmaschine sieben Kammern. In jeder Kammer wird die Flotte speziell auf die jeweiligen Bedürfnisse eingestellt, indem die Flüssigkeit abgepumpt und entweder in einen Zwischenbehälter oder direkt in die nachfolgende Kammer geleitet wird. Damit kann die Flotte bei gleichartiger Wäsche mehrfach benutzt mit der Wäsche mitlaufen und bei unterschiedlicher Wäsche zwischengespeichert werden. Weil dies nur mit einer Doppeltrommelmaschine realisierbar ist, bei der jede Kammer in einem eigenen Gehäuse mit einem eigenen Antrieb für die Kammer vorgesehen ist, ist der Aufwand an Material und Arbeitszeit zum Zusammenbau einer solchen Durchlaufwaschmaschine gross.A reduction in the number of compartments, on the other hand, is possible with the continuous washing machine according to DE-A 29 00 467, namely two compartments for the prewash or soaking zone, three compartments for the washing zone and two for the rinsing zone, a last one is intended as a finishing zone; thus a maximum of eight compartments are necessary, and if the finishing which is not necessary for every wash is carried out outside the wash tube, seven compartments are sufficient for this washing machine. In each chamber, the fleet is specifically adjusted to the respective needs by pumping the liquid and passing it either into an intermediate container or directly into the subsequent chamber. This enables the fleet to run with the laundry several times when the laundry is of the same type and with different laundry be cached. Because this can only be achieved with a double drum machine, in which each chamber is provided in its own housing with its own drive for the chamber, the effort in material and labor for assembling such a continuous washing machine is great.

Es ist deshalb eine Aufgabe der Erfindung, eine Lösung für die aufgezeigten Probleme anzugeben, mit der die Anzahl Kammern wesentlich reduziert werden kann, ohne dass der Waschvorgang verändert werden muss, um damit eine Durchlaufwaschmaschine bauen zu können, die wesentlich weniger Naterial benötigt und somit auch die zum Bau benötigte Arbeitszeit wesentlich geringer ist.It is therefore an object of the invention to provide a solution to the problems presented, with which the number of compartments can be significantly reduced without having to change the washing process in order to be able to build a continuous washing machine which requires significantly less material and thus also the working time required for construction is significantly shorter.

Erfindungsgemäss wird dies durch die Merkmale im kennzeichnenden Teil des unabhängigen Patentanspruchs 1 erreicht. Die Durchlaufwaschmaschine zur Durchführung des Verfahrens ist im unabhängigen Patentanspruch 5 gekennzeichnet.According to the invention this is achieved by the features in the characterizing part of independent claim 1. The continuous washing machine for performing the method is characterized in independent claim 5.

Ein Ausführungsbeispiel wird nachfolgend anhand der Zeichnung erläutert. Es zeigen:

  • Fig. 1 einen Aufriss einer Waschmaschine zur Durchführung des Verfahrens,
  • Fig. 2 eine schematische Darstellung der Wasserleitungen mit Ventilen und Pumpen für den Betrieb der Waschmaschine nach Fig. 1 und
  • Fig. 3 ein Betriebszeitendiagramm für die Ventile und Pumpen in Fig. 2.
An embodiment is explained below with reference to the drawing. Show it:
  • 1 is an elevation of a washing machine for performing the method,
  • Fig. 2 is a schematic representation of the water pipes with valves and pumps for the operation of the washing machine according to Fig. 1 and
  • 3 shows an operating time diagram for the valves and pumps in FIG. 2.

Die Durchlaufwaschmaschine gemäss Fig. 1 besteht aus fünf zu einem Rohr vereinigten Kammern Kl - K5, von denen die beiden aussenliegenden Kammern Kl und K5 mit einem Eingabetrichter E bzw. mit einer Ausgaberutsche AG versehen sind. Auch haben diese beiden Kammern Kl und K5 eine grössere axiale Länge als die übrigen Kammern K2 - K4. Die Kammer K2 weil die trockene, luftig geballte Wäsche mehr Platz einnimmt als die nasse schwerere Wäsche, und die Kammer K5 weil das Niveau wegen der Ausgaberutsche AG niedriger gehalten werden muss als für die übrigen Waschvorgänge, so dass auch in der Kammer K5 ein gleiches Flottenverhältnis wie in den Kammern K2 bis K4 ermöglicht wird.The continuous washing machine according to FIG. 1 consists of five chambers Kl - K5 combined to form a tube, of which the two outer chambers Kl and K5 are provided with an input funnel E or with an output chute AG. These two chambers K1 and K5 also have a greater axial length than the other chambers K2-K4. The chamber K2 because the dry, airy, concentrated laundry takes up more space than the wet heavier laundry, and the chamber K5 because the level has to be kept lower than for the other washing processes due to the discharge chute AG, so that the same liquor ratio also exists in the chamber K5 as is made possible in chambers K2 to K4.

In dieser Anordnung ist die Kammer Kl die Vorwaschstufe, die Kammern K2 und K3 bilden die Klarwaschstufe, während die Kammern K4 und K5 die Spülstufe darstellen. Wie üblich sind die beiden Kammern K2 und K3 mit Wärmedämmstoffen ausgerüstet, damit der an die Umgebung abgegebene Wärmeverlust möglichst gering gehalten werden kann.In this arrangement, the chamber K1 is the prewash stage, the chambers K2 and K3 form the final wash stage, while the chambers K4 and K5 represent the rinse stage. As usual, the two chambers K2 and K3 are equipped with thermal insulation materials so that the heat loss emitted to the environment can be kept as low as possible.

Diese geringe Anzahl Kammern lässt sich aus der Erkenntnis begründen, dass jeder Spülvorgang im Prinzip eine Verdünnung der Flotte darstellt. Ein optimales Spülergebnis wird pro Spülstufe mit etwa 3 Minuten Spülzeit erreicht. Somit bleibt in einem 8-minütigen Waschtakt genügend Zeit, um zwei Spülvorgänge mit der notwendigen Entleerung und Auffüllung von Spülwassern zeitlich unterzubringen. Die Zeit von 8 Minuten pro Waschtakt ergibt sich aus der Letalitätszeit von 14 Minuten, die für eine Sterilisierung der Wäsche benötigt wird, wenn für die Kochwäsche zwei Kammern zur Verfügung stehen und die Flotte innerhalb höchstens 3 Minuten auf die benötigte Temperatur von 95° aufgeheizt werden kann.This small number of chambers can be justified on the basis of the knowledge that each rinsing process is in principle a dilution of the liquor. An optimal washing result is achieved with a washing time of about 3 minutes per washing step. This leaves enough time in an 8-minute wash cycle to accommodate two rinsing processes with the necessary emptying and filling of rinsing water. The time of 8 minutes per wash cycle results from the lethality time of 14 minutes, which is required for sterilizing the laundry, if two compartments are available for the hot laundry and the liquor is heated to the required temperature of 95 ° within a maximum of 3 minutes can.

Um diese Bedingungen technisch zu erfüllen, ohne die benötigte Energie zu vergrössern, sondern eher noch einzusparen, ist vorgesehen, das Abwasser aus den vier Spülgängen wieder zu verwenden. Einerseits lässt sich damit der übliche Wasserbedarf von 30 1 Wasser pro kg Trockenwäsche auf etwa 10 1 absenken und der Energiebedarf kann mit der Ausnützung der Wärme im zurückgewonnenen Wasser auf die Hälfte der sonst benötigten Energie reduziert werden.In order to technically meet these conditions without increasing the required energy, but rather saving it, it is planned to reuse the wastewater from the four rinse cycles. On the one hand, the usual water requirement can be reduced from 30 liters of water per kg of dry laundry to about 10 liters, and the energy requirement can be reduced to half the energy otherwise required by utilizing the heat in the recovered water.

Im folgenden werden die für diese besonderen Massnahmen erforderlichen Mittel anhand der Fig. 1 und 2 beschrieben. Für die Zu- und Wegführung der notwendigen Flüssigkeiten neben der Wärmeeinspeisung besitzen die Kammern K2, K4 und K5 je eine Schleuse mit Zuführleitungen K2E, K4E und K5E und Wegführleitungen K2W, K4W und K5W. Die Zuführleitung KlE zum Einfülltrichter E bewirkt das Einspülen der trockenen Wäsche und zugleich das Einweichen. Das letzte Spülwasser aus der Kammer K5 als Schwallwasser SW gelangt mit der Wäsche in eine Entwässerungsvorrichtung (nicht dargestellt), die eine Zentrifuge oder eine Presse sein kann.The means required for these special measures are described below with reference to FIGS. 1 and 2. The chambers K2, K4 and K5 each have a lock with supply lines K2E, K4E and K5E and exit lines K2W, K4W and K5W for the supply and removal of the necessary liquids in addition to the heat supply. The feed line KlE to the hopper E causes the washing in of the dry laundry and at the same time the soaking. The last rinse water from chamber K5 as splash water SW reaches the laundry in a dewatering device (not shown), which can be a centrifuge or a press.

Unterhalb der Kammern befinden sich drei Behälter A, B, C, die zum Auffangen des aus den Kammern K4 und K5 abgeführten ersten, zweiten und dritten Spülwassers, sowie des Schwallwassers SW bestimmt sind. Die Steuerung zur Zuordnung der Spülwasser zu den Behältern A, B, C oder die Wegführung des Vorwaschwassers VW und des Klarwaschwassers KW wird durch Ventile Vl - V5 gesteuert, und die Zuführung der Flüssigkeiten zu den Kammern K2, K4 und K5 inklusive zum Einfülltrichter erfolgt über die Pumpen Pl - P3 und ein Ventil V6, das an der Frischwasserleitung Z angeschlossen ist. Die Frischwasserleitung Z ist über nicht einzeln bezeichnete Ventile VZ mit allen drei Behältern A, B, C verbunden und eine Abwasserleitung AW ist entsprechend mit Ventilen VA aus den Behältern A, B, C gespeist und erhält auch das Abwasser von den Kammern K2 und K4 über Ventile Vl und V2 mit den Leitungen L8 und Lll.Below the chambers are three containers A, B, C, which are intended to collect the first, second and third rinsing water discharged from the chambers K4 and K5, and the splash water SW. The control for assigning the rinse water to the tanks A, B, C or the removal of the prewash water VW and the clear wash water KW is controlled by valves Vl - V5, and the supply of the liquids to the chambers K2, K4 and K5 including the filling funnel takes place via the pumps P1 - P3 and a valve V6, which is connected to the fresh water line Z. The fresh water line Z is connected to all three containers A, B, C via and not individually identified valves VZ a sewage line AW is fed accordingly with valves VA from the tanks A, B, C and also receives the sewage from the chambers K2 and K4 via valves Vl and V2 with the lines L8 and Lll.

Zur Erläuterung der Betriebsarten wird im besonderen auf die Fig. 2 und 3 verwiesen. Zur Zeit 0', die mit der Zeit 8' des vorangehenden Taktes identisch ist, befindet sich im Behälter A das erste Spülwasser Spl aus dem vorangegangenen Waschtakt, die übrigen Behälter B und C sind bis auf Restwasser leer. Mit dem Taktende wurde die Wäsche von jeder Kammer zur nächsten Stufe befördert. In der Kammer K2 liegt somit die vorgewaschene Wäsche mit der Vorwaschflotte VW und in der Kammer K4 die klargewaschene Wäsche in der Klarwaschflotte KW. Die Ventile Vl und V2 werden geöffnet, damit die Vorwaschflotte VW über die Leitungen L5 und L8 aus dem Schleusenausgang K2W und die Klarwaschflotte KW über die Leitungen L6 und Lll in den Ablauf gelangen können.For an explanation of the operating modes, reference is made in particular to FIGS. 2 and 3. At the time 0 ', which is identical to the time 8' of the previous cycle, the first rinse water Spl from the previous wash cycle is located in the container A, the remaining containers B and C are empty except for residual water. At the end of the cycle, the laundry was carried from each chamber to the next stage. The prewashed laundry with the prewash liquor VW is thus in the chamber K2 and the clearwashed laundry in the rinse wash liquor KW is in the chamber K4. The valves V1 and V2 are opened so that the pre-wash liquor VW can reach the drain via the lines L5 and L8 from the lock exit K2W and the clear wash liquor KW can reach the drain via the lines L6 and Lll.

Gleichzeitig wird auch das Ventil V4 geöffnet, um das zweite Spülwasser Sp2 aus dem Schleusenausgang K4W über die Leitungen L7 und L10 in den Behälter B einzuleiten. Mit der Pumpe Pl wird dieses Spülwasser Sp2 über die Leitung L1 dem Einspüleinlass K1E im Einfülltrichter E zugeleitet. Indem nasse Wäsche zusammen mit dem vierten Spülwasser Sp4 aus der Kammer K5 in die Entwässerungsvorrichtung gelangte und das Schwallwasser SW von dort in den Behälter C floss, sind nun der Behälter A mit dem ersten Spülwasser Spl des vorangehenden Taktes und der Behälter C mit dem Schwallwasser SW gefüllt.At the same time, the valve V4 is also opened in order to introduce the second rinse water Sp2 from the lock exit K4W via the lines L7 and L10 into the container B. This flushing water Sp2 is fed with the pump P1 via line L1 to the flushing inlet K1E in the filling funnel E. By doing wet laundry together with the fourth rinse water Sp4 from the chamber K5 into the dewatering device and the surge water SW flowed from there into the container C, the container A is now filled with the first rinse water Spl of the preceding cycle and the container C with the surge water SW .

Zur Zeit 30" werden somit die Ventile Vl, V2, V4 geschlossen und die Pumpe Pl wird abgeschaltet. Auch werden die Pumpen P2 und P3 angeschaltet und das Ventil V6 geöffnet. Damit wird das erste Spülwasser Spl des vorangegangenen Taktes aus dem Behälter A über die Leitung L2 und die Einlassleitung K2E der Kammer K2 zugeführt. Mit der Pumpe P3 wird über die Leitung L3 das Wasser aus dem Behälter C in die Kammer K4 als erstes Spülwasser Spl eingespeist und mit dem Ventil V6 wird Frischwasser aus der Leitung Z über die Leitung L4 der Kammer K5 als drittes Spülwasser Sp3 zugeleitet.At time 30 ", the valves V1, V2, V4 are thus closed and the pump P1 is switched off. The pumps P2 and P3 are also switched on and the valve V6 is opened. The first flushing water Spl of the previous cycle is thus discharged from the container A via the Line L2 and the inlet line K2E are supplied to the chamber K2 With the pump P3, the water from the tank C is fed into the chamber K4 as the first rinse water Spl via the line L3, and the valve V6 is used to supply fresh water from the line Z via the line L4 fed to the chamber K5 as the third rinse water Sp3.

Gemäss der oben erwähnten Erkenntnis, dass drei Minuten für jeden Spülvorgang genügen, werden zur Zeit 4' die Ventile V3 zum Ableiten des ersten Spülwassers Spl in den Behälter A und V5 zum Ableiten des dritten Spülwassers Sp3 in den Behälter C geöffnet. Somit befindet sich Wasser in den Behältern A und C, im Behälter B kann sich noch Restwasser, das überlaufendes Schwallwasser SW vom Behälter C sein kann, befinden.According to the above-mentioned finding that three minutes are sufficient for each rinsing process, the valves V3 for draining the first rinsing water Spl into the container A and V5 for draining the third rinsing water Sp3 into the container C are opened at time 4 '. Thus there is water in containers A and C, in container B there can still be residual water overflowing splash water SW from tank C can be located.

Dreissig Sekunden später, zur Zeit 4'30" wird die Pumpe P3 angeschaltet, um das Wasser aus dem Behälter C über die Leitung L3 als zweites Spülwasser Sp2 der Kammer K4 zuzuleiten. Gleichzeitig wird über das Ventil V6 und die Leitung L4 Frischwasser aus der Leitung Z als viertes Spülwasser Sp4 in die Kammer K4 eingespeist.Thirty seconds later, at time 4'30 ", the pump P3 is switched on in order to supply the water from the container C via the line L3 as the second rinse water Sp2 to the chamber K4. At the same time, fresh water is discharged from the line via the valve V6 and the line L4 Z is fed as fourth rinse water Sp4 into the chamber K4.

Der Waschtakt ist zur Zeit 8' beendet. Während dieser gesamten Zeit wurde das Rohr hin- und hergeschwenkt, um die Wäsche in bekannter Weise zu waschen. Damit die Wasserpegel in den einzelnen Kammern Kl, K2, K4 und K5 dem jeweiligen Bedarf angepasst sind, wird die Pumpe Pl zeitlich gesteuert, und die Pumpen P2, P3 und das Ventil V6 werden mittels Niveauschaltern durch die Pegel in den zugehörigen Kammern K2, K4 und K5 gesteuert.The wash cycle has ended at time 8 '. During this entire time, the tube was swung back and forth to wash the laundry in a known manner. So that the water levels in the individual chambers K1, K2, K4 and K5 are adapted to the respective requirements, the pump P1 is timed, and the pumps P2, P3 and the valve V6 are switched by means of level switches by the levels in the associated chambers K2, K4 and K5 controlled.

Wenn nun beachtet wird, dass das aus der Kammer K4 kommende 2. Spülwasser Sp2 etwa 40° warm ist, wird die Wäsche im Vorwaschgang auf diese 40° aufgewärmt. Diese Temperatur darf bekanntlich wegen der Eiweissfixierung nicht überschritten werden. Zum Klarwaschen wird das 60° warme erste Spülwasser Spl benützt, so dass eine Mischtemperatur von etwa 500 entsteht, die nun auf Klarwaschtemperatur zu erwärmen ist. Durch diese sich kreuzende Verwendung von erstem und zweitem Spülwasser Spl und Sp2 lässt sich die oben erwähnte kurze Klarwaschzeit von 16 Minuten erreichen und neben der Einsparung an Wasser von gegen 66 % kann noch Wärmeenergie von gegen 50 % eingespart werden und zusätzlich ergibt sich eine Durchlaufzeit für die Wäsche von 40 Minuten.If it is now observed that the 2nd rinse water Sp2 coming from the chamber K4 is approximately 40 ° warm, the laundry is heated to this 40 ° in the prewash cycle. As is known, this temperature must not be exceeded due to protein fixation. The 60 ° warm first rinse water Spl is used for clear washing, so that a mixing temperature of about 50 0 arises, which is now to be warmed to rinse temperature. This intersecting use of the first and second rinse water Spl and Sp2 enables the above-mentioned short clear wash time of 16 minutes to be achieved and, in addition to saving water by around 66%, heat energy can be saved by around 50% and additionally results in a cycle time for the laundry of 40 minutes.

Mit dieser Anordnung von Kammern Kl - K5, Behältern A, B, C sowie Ventilen, Pumpen und Leitungen lässt sich eine kompakte Durchlaufwaschmaschine herstellen. Gemäss Fig. 1 ist das Rohr mit den Kammern Kl - K5 über den Behältern A, B, C angeordnet und auf einem Rahmen R in bekannter Weise rollend abgestützt. Auf diesem Rahmen R befindet sich auch der Antriebsmotor M mit Getriebe und Friktionswalzen oder Zahnradverbindung zum Rohr. Die dargestellten Rahmenstützen RS dienen zur Befestigung von Abdeckplatten, von denen eine Abdeckplatte P hinter dem Rohr erkenntlich ist. Die vorderen sind dementsprechend entfernt.With this arrangement of chambers Kl - K5, containers A, B, C as well as valves, pumps and lines, a compact continuous washing machine can be produced. According to FIG. 1, the tube with the chambers K1-K5 is arranged above the containers A, B, C and is supported on a frame R in a rolling manner in a known manner. On this frame R there is also the drive motor M with gear and friction rollers or gear connection to the tube. The frame supports RS shown serve for fastening cover plates, of which a cover plate P can be seen behind the pipe. The front ones are removed accordingly.

Es genügt somit, für diese Waschmaschine im Waschraum einen Ablaufkanal für die wegzuführenden Flüssigkeiten aus Vorwaschwasser VW, Klarwaschwasser KW und Reinigungswasser RW aus der Abwasserleitung A, ferner einen Anschluss für die Frischwasserspeisung Z und eine Vorrichtung zum Aufheizen der Flotte in der Kammer K4 vorzusehen. Eine beispielsweise Ausführungsform für einen stündlichen Wäschedurchlauf von 150 - 300 kg hat eine Länge von rund 3,5 m bei einer Einbauhöhe von etwas über 2,5 m.It is therefore sufficient for this washing machine in the washroom to have a drain channel for the liquids to be removed from prewash water VW, clear wash water KW and cleaning water RW from the waste water line A, and also a connection for the Fresh water supply Z and a device for heating the liquor to be provided in the chamber K4. An example embodiment for an hourly laundry cycle of 150-300 kg has a length of around 3.5 m with an installation height of just over 2.5 m.

Claims (8)

1. Verfahren zum Waschen von Wäsche in einer Durchlaufwaschmaschine, bestehend aus einem durch mit einer Uebergabeöffnung versehenen Trennwände in Kammern unterteilten Rohr, dadurch gekennzeichnet, dass die mit der Uebergabe der Wäsche von jeweils einer Kammer zur andern bestimmte Behandlungszeit der Wäsche in den mit Schleusen versehenen Kammern halbiert wird, indem nach der halben Taktzeit die Lauge oder das Spülwasser abgelassen und neue Lauge oder neues Spülwasser eingespeist wird.1. A method for washing laundry in a continuous washing machine, consisting of a tube divided by chambers provided with a transfer opening in chambers, characterized in that the transfer of the laundry from one chamber to another determined treatment time of the laundry in the locks Chambers is halved by draining the lye or rinse water and feeding in new lye or new rinse water after half the cycle time. 2. Verfahren nach Patentanspruch 1, dadurch gekennzeichnet, dass das Schmutzwasser nach der Vorwäsche und nach der Klarwäsche abgelassen wird, und dass alle vier Spülwasser wiederverwendet werden.2. The method according to claim 1, characterized in that the dirty water is drained after the prewash and after the clear wash, and that all four rinse water are reused. 3. Verfahren nach Patentanspruch 2, dadurch gekennzeichnet, dass das erste Spülwasser als Klarwaschwasser, das zweite Spülwasser als Vorwaschwasser, das dritte Spülwasser als zweites Spülwasser und das vierte Spülwasser als erstes Spülwasser verwendet wird.3. The method according to claim 2, characterized in that the first rinse water is used as rinse water, the second rinse water as prewash water, the third rinse water as second rinse water and the fourth rinse water as first rinse water. 4. Verfahren nach Patentanspruch 2, dadurch gekennzeichnet, dass die Restwärme in der Wäsche und in dem darin gebundenen Wasser zum Aufwärmen des Spülwassers benützt wird.4. The method according to claim 2, characterized in that the residual heat in the laundry and in the water bound therein is used to warm up the rinse water. 5. Durchlaufwaschmaschine zur Ausübung des Verfahrens nach Patentanspruch 1, dadurch gekennzeichnet, dass im Rohr eine erste Kammer (K1) für Vorwaschen, eine zweite Kammer (K2) für ein allfälliges zweites Vorwaschen und Klarwaschen, eine dritte Kammer K3) für Klarwaschen und zwei Kammern (K4,K5) für die vier Spülgänge vorhanden sind, dass eine erste Schleuse (K2E) zum Ablassen des Vorwaschwassers und wahlweisen Zuführen von zweitem Vorwaschwasser oder des Klarwaschwassers an der ersten Kammer (K2) für Klarwaschen vorhanden ist, und dass weitere Schleusen (K4E,K5E) an den beiden Kammern (K4,K5) für die Spülgänge angeordnet sind, um das Klarwaschwasser und wenigstens das Spülwasser von drei Spülgängen abzulassen und alle vier Spülwasser zuzuführen.5. continuous washing machine for performing the method according to claim 1, characterized in that in the tube a first chamber (K1) for prewashing, a second chamber (K2) for a possible second prewashing and final washing, a third chamber K3) for final washing and two chambers (K4, K5) for the four rinse cycles, there is a first lock (K2E) for draining the pre-wash water and optional supply of second pre-wash water or the clear wash water to the first chamber (K2) for clear washing, and that further locks (K4E , K5E) are arranged on the two chambers (K4, K5) for the rinse cycles in order to drain the clear wash water and at least the rinse water from three rinse cycles and to supply all four rinse water. 6. Durchlaufwaschmaschine nach Patentanspruch 5, dadurch gekennzeichnet, dass unterhalb des Rohres wenigstens drei Behälter (A,B,C) angeordnet sind, denen das Spülwasser über Ventile (V3,V4,V5) zugeführt und aus denen das wiederverwendbare Wasser mittels Pumpen (Pl,P2,P3) abgeführt wird.6. continuous washing machine according to claim 5, characterized in that below the tube at least three containers (A, B, C) are arranged, to which the rinsing water is supplied via valves (V3, V4, V5) and from which the reusable water by means of pumps (Pl , P2, P3) is discharged. 7. Durchlaufwaschmaschine nach Patentanspruch 6, dadurch gekennzeichnet, dass alle Behälter (A,B,C) über weitere Ventile (VZ,V) mit einer Frischwasserleitung (Z) und mit einer Abwasserleitung (A) verbunden sind, um beim Wechsel unterschiedlicher Wäschearten das nicht erwünschte Wasser programmfolgeabhängig abzulassen und die Behälter mit frischem Wasser aufzufüllen.7. continuous washing machine according to claim 6, characterized in that all containers (A, B, C) via further valves (VZ, V) with a fresh water line (Z) and with a waste water line (A) are connected to the when changing different types of laundry Drain unwanted water depending on the program sequence and fill the container with fresh water. 8. Durchlaufwaschmaschine nach einem der vorangehenden Patentansprüche 1 bis 7, dadurch gekennzeichnet, dass das Rohr (K1-K5), dessen Antriebsaggregat (m), die Behälter (A,B,C), Ventile (V,VZ,Vl-V6), Pumpen (P1-P3) und sämtliche Leitungen (L1-L12,Z,A) als Kompaktanlage auf einem Montagerahmen (R) aufgebaut sind, derart, dass beim Einbau lediglich die betriebsnotwendigen Speisungen und Ableitungen anzuschliessen sind.8. continuous washing machine according to one of the preceding claims 1 to 7, characterized in that the tube (K1-K5), its drive unit (m), the container (A, B, C), valves (V, VZ, Vl-V6) , Pumps (P1-P3) and all lines (L1-L12, Z, A) are constructed as a compact system on a mounting frame (R) in such a way that only the operationally necessary supplies and discharges need to be connected during installation.
EP83810079A 1982-03-01 1983-02-24 Method of washing laundry, and continuous batch-type washing machine for carrying out the method Expired - Lifetime EP0088052B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83810079T ATE21132T1 (en) 1982-03-01 1983-02-24 METHOD OF WASHING LAUNDRY AND CONTINUOUS WASHING MACHINE FOR CARRYING OUT THE PROCESS.

Applications Claiming Priority (2)

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CH1244/82 1982-03-01
CH1244/82A CH665231A5 (en) 1982-03-01 1982-03-01 METHOD FOR WASHING LAUNDRY AND CONTINUOUS WASHING MACHINE FOR CARRYING OUT THE METHOD.

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EP0088052A1 true EP0088052A1 (en) 1983-09-07
EP0088052B1 EP0088052B1 (en) 1986-07-30
EP0088052B2 EP0088052B2 (en) 1993-10-27

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EP (1) EP0088052B2 (en)
JP (1) JPS58159792A (en)
AT (1) ATE21132T1 (en)
CA (1) CA1197390A (en)
CH (1) CH665231A5 (en)
DE (1) DE3364826D1 (en)

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DE4331704C2 (en) * 1993-07-28 2003-10-02 Senkingwerk Gmbh Kg Process for washing laundry in a countercurrent continuous washing machine

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JP2565789Y2 (en) * 1991-08-30 1998-03-18 三菱重工業株式会社 Continuous washing equipment
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Also Published As

Publication number Publication date
JPS58159792A (en) 1983-09-22
JPH0146160B2 (en) 1989-10-06
DE3364826D1 (en) 1986-09-04
EP0088052B2 (en) 1993-10-27
ATE21132T1 (en) 1986-08-15
EP0088052B1 (en) 1986-07-30
CH665231A5 (en) 1988-04-29
US4499621A (en) 1985-02-19
CA1197390A (en) 1985-12-03

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