EP4063550A1 - Dosiersystem für eine tunnelwaschanlage, dosiereinheit für solch ein dosiersystem und tunnelwaschanlage - Google Patents

Dosiersystem für eine tunnelwaschanlage, dosiereinheit für solch ein dosiersystem und tunnelwaschanlage Download PDF

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Publication number
EP4063550A1
EP4063550A1 EP21164255.8A EP21164255A EP4063550A1 EP 4063550 A1 EP4063550 A1 EP 4063550A1 EP 21164255 A EP21164255 A EP 21164255A EP 4063550 A1 EP4063550 A1 EP 4063550A1
Authority
EP
European Patent Office
Prior art keywords
dosing
way valve
dosed
unit
dosing unit
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.)
Pending
Application number
EP21164255.8A
Other languages
English (en)
French (fr)
Inventor
Walter SCHMUCK
Georg WEINBRENNER
Thomas Fassbender
Thomas DÜRRSCHMIDT
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.)
Ecolab USA Inc
Original Assignee
Ecolab USA Inc
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 Ecolab USA Inc filed Critical Ecolab USA Inc
Priority to EP21164255.8A priority Critical patent/EP4063550A1/de
Priority to PCT/EP2022/054263 priority patent/WO2022199962A1/en
Publication of EP4063550A1 publication Critical patent/EP4063550A1/de
Pending 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
    • D06F31/00—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/028—Arrangements for selectively supplying water to detergent compartments

Definitions

  • the invention relates to a dosing system for a tunnel washer, the dosing system comprising: at least one dosing unit for the dosed delivery of liquid products to be dosed into a respective compartment of the tunnel washer and reservoirs for each of the products to be dosed.
  • the invention further relates to a corresponding dosing unit, a corresponding use of such kind of dosing unit for a dosed delivery of a plurality of liquid products to be dosed from a plurality of reservoirs into a compartment of a tunnel washer and a corresponding tunnel washer with such a dosing system.
  • a tunnel washer also called a continuous batch washer (CBW) is an industrial washing machine designed specifically to handle heavy loads of laundry.
  • CBW continuous batch washer
  • Document US 2011/0296626 A1 shows such a tunnel washer with a plurality of compartments and a dosing system comprising a plurality of dosing units for the dosed delivery of liquid products to be dosed into the respective compartment of the tunnel washer and reservoirs for each of the products to be dosed.
  • a dosing system comprising a plurality of dosing units for the dosed delivery of liquid products to be dosed into the respective compartment of the tunnel washer and reservoirs for each of the products to be dosed.
  • One reservoir per compartment is shown.
  • each of the dosing units is connected to the corresponding reservoirs via a separate dosing line.
  • the current setup is that every product is dosed separately in the CBW. In case that several products go in the same compartment of the CBW there are several dosing lines in the same compartment.
  • a dosing system for a tunnel washer comprises: (a) at least one dosing unit for a dosed delivery of a plurality of liquid products to be dosed into a respective compartment of the tunnel washer and (b) reservoirs for each of the products to be dosed, wherein the at least one dosing unit includes a dosing line with a dispensing point, a pump, a flow meter and a multi-way valve assembly, which are fluid-technically connected in the dosing line and wherein the at least one dosing unit is fluid-technically connected to the reservoirs via its multi-way valve assembly in such a way that the products to be dosed by the respective dosing unit can be selected via the multi-way valve assembly of said dosing unit.
  • Such a dosing system can be realized in a very space-saving way. Especially if it should be possible to supply several of the compartments with the same products, the space saving becomes obvious.
  • a multi-way valve assembly can be realized with a single multi-way valve or a plurality of valves.
  • the multi-way valve assembly of the at least one dosing unit is realized by a single multi-way valve. If such a realization is possible, there is a further space saving.
  • the at least one dosing unit is further on fluid-technically connectable to a water supply via its multi-way valve assembly.
  • a water supply can be realized by a water pipe or by a water reservoir, which in principle does not differ from the other reservoirs of the system.
  • the at least one multi-way valve assembly has at least one more switching state than there are reservoirs, preferably two of them. One switching state for each reservoir/product to be delivered to the respective compartment and one extra switching state for no delivery at all and one extra switching state for flushing the dosing line with water.
  • the/each multi-way valve has at least one more switching state than there are reservoirs, preferably two of them.
  • the dosing system comprises a plurality of dosing units.
  • a plurality of dosing units means that a plurality of compartments can be supplied with the same liquid products.
  • the system further comprises a control unit for controlling and/or regulating the at least one dosing unit.
  • the control unit outputs control signals to the multi-way valve(s) and the pump(s) of the dosing unit(s) and receives measurement signals from the flow meter(s).
  • the dosing system further comprises a piping system for fluid-technically connecting the at least one dosing unit to the reservoirs.
  • a piping system for fluid-technically connecting the at least one dosing unit to the reservoirs.
  • Each of the reservoirs is fluidly connected to each of the multi-way valves (and the water supply) via the branched piping system.
  • a dosing unit for a dosed delivery of a plurality of liquid products to be dosed from a plurality of reservoirs into a compartment of a tunnel washer, which dosing unit includes a dosing line with a dispensing point, a pump, a flow meter and a multi-way valve assembly, which are fluid-technically connected in the dosing line, wherein the multi-way valve assembly of the dosing unit arranged for a fluid-technically connection to the reservoirs in such a way that the products to be dosed by the respective dosing unit can be selected via the multi-way valve assembly of said dosing unit.
  • the dosing unit especially is a dosing unit for the aforementioned dosing system.
  • Each of the advantageous embodiments of the aforementioned dosing system relating to the dosing unit(s) is equally an advantageous embodiment of the dosing unit.
  • a use of the aforementioned dosing unit for a dosed delivery of a plurality of liquid products to be dosed from a plurality of reservoirs into a compartment of a tunnel washer is provided.
  • a tunnel washer comprising a washing device with a plurality of compartments and an aforementioned dosing system is provided.
  • the washing device comprises a conveyor screw for transporting the laundry within the washing device along the compartments.
  • the screw conveyor is usually made of perforated metal so that the laundry items can pass through the washing device in one direction, while water and additional liquid products required for washing, in particular washing chemicals, pass through in the opposite direction.
  • the laundry moves through the compartments with progressively cleaner water and fresher chemicals during the washing process.
  • the tunnel washer further comprises a higher-level control unit for a coordinated control of the washing device and the dosing system.
  • Fig. 1 shows a tunnel washer 10, also called a continuous washing machine (CWM), in a schematic view.
  • This tunnel washer 10 is an industrial washing machine specially designed for heavy loads of laundry.
  • the tunnel washer 10 has a washing device 12 for washing laundry.
  • This laundry consisting of individual pieces of laundry, is fed into the washing device 12 via a funnel-like feed unit 14 at one end 16 of the tunnel washer 10, passes through a plurality of compartments 18, 20 (sometimes also called pockets) of the washing device 12 arranged in series, and can be removed cleanly from the tunnel washer 10 at the other end 22 of the tunnel washer 10. Only two compartments 18, 20 are shown in the schematic representation herein.
  • the laundry is propelled within the washing device 12 by means of a screw conveyor (not shown in the figure).
  • the screw conveyor is usually made of perforated metal so that the laundry items can pass through the washing device 12 in one direction (from the one end 16 to the other end 22), while water and additional liquid products required for washing, in particular washing chemicals, pass through in the opposite direction (towards the one end 16).
  • the washing device 12 has a control unit (not shown here) for controlling said washing process.
  • the tunnel washer 10 further comprises a dosing system 24 for dosing the liquid products/chemicals into individual ones of the compartments 18, 20.
  • a dosing system 24 for dosing the liquid products/chemicals into individual ones of the compartments 18, 20.
  • the dosing system 24 comprises (i) a plurality of dosing units 26, 28 for the dosed delivery of products to be dosed into a respective compartment 18, 20 of the washing device 12 and (ii) reservoirs 30, 32 for each of the products to be dosed.
  • Each of the dosing units 26, 28 includes a dosing line 34 with a dispensing point 36, a pump 38, a flow meter 40 and a multi-way valve assembly 42, which components 36, 38, 40, 42 are fluid-technically connected in the dosing line 34.
  • the dosing units 26, 28 are fluid-technically connected to the reservoirs 30, 32 via their multi-way valve assemblies 42 in such a way that each of the products can be dosed by each of the respective dosing units 26, 28, wherein a selection of the corresponding reservoir 30, 32 can be performed via the multi-way valve 42 of the respective dosing unit 26, 28.
  • the multi-way valve assemblies 42 can comprise one or multiway valves 44. In the shown example, each of the multi-way valve assemblies 42 consists of one multiway valve 44. Each of the one multi-way valves 44 has one more switching state than there are reservoirs 30, 32 (three switching states and two reservoirs 30, 32).
  • the dosing system 24 further comprises a control unit 46 for controlling and/or regulating the at least one dosing unit 26, 28.
  • the control unit 46 outputs control signals to the multi-way valves 44 and the pumps 38 of the dosing units 26, 28 and receives measurement signals from the flow meters 40 (represented by arrows).
  • the dosing system further comprises a piping system 48 for realizing the fluid-technically connection of the dosing units 26, 28 to the reservoirs 30, 32.
  • Each of the reservoirs 30, 32 is fluidly connected to each of the multi-way valves 44 via an own branched part 50 of the piping system 48.
  • the piping system 48 also includes a part 50 (not shown here) for flushing the dosing lines 34 with water. This part is constructed like the other parts 50 of the piping system 48 (shown here) but is connected to a water supply. It should be noted that, unlike the example shown here, the dosing system 24 does not necessarily have to supply each of the compartments 18, 20 with product.
  • each dispensing point (dosing point) 36 is connected with one pump 38 and one flow meter 40 and a multi-way valve 44 in order to be able to switch between different products/reservoirs 30, 32.
  • the dosing lines 34 have to be flushed with water between different products in order that this concept works.
  • this dosing system 24 requires less space and smaller number of pumps 38 and flow meters 40. Also, one could use a pre-dosage system in order not to lose too much time between dosages of different products through the same dispensing point (dosing point) 36.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
EP21164255.8A 2021-03-23 2021-03-23 Dosiersystem für eine tunnelwaschanlage, dosiereinheit für solch ein dosiersystem und tunnelwaschanlage Pending EP4063550A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21164255.8A EP4063550A1 (de) 2021-03-23 2021-03-23 Dosiersystem für eine tunnelwaschanlage, dosiereinheit für solch ein dosiersystem und tunnelwaschanlage
PCT/EP2022/054263 WO2022199962A1 (en) 2021-03-23 2022-02-21 Dosing system for a tunnel washer, dosing unit for such dosing system and tunnel washer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21164255.8A EP4063550A1 (de) 2021-03-23 2021-03-23 Dosiersystem für eine tunnelwaschanlage, dosiereinheit für solch ein dosiersystem und tunnelwaschanlage

Publications (1)

Publication Number Publication Date
EP4063550A1 true EP4063550A1 (de) 2022-09-28

Family

ID=75202976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21164255.8A Pending EP4063550A1 (de) 2021-03-23 2021-03-23 Dosiersystem für eine tunnelwaschanlage, dosiereinheit für solch ein dosiersystem und tunnelwaschanlage

Country Status (2)

Country Link
EP (1) EP4063550A1 (de)
WO (1) WO2022199962A1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08323088A (ja) * 1995-06-02 1996-12-10 Mitsubishi Heavy Ind Ltd 連続式水洗機
EP2044877A1 (de) * 2007-10-05 2009-04-08 Whirlpool Corporation Waschgerät mit Mehrquellen-Waschhilfepumpe
US20110296626A1 (en) 2010-06-03 2011-12-08 Pellerin Milnor Corporation Continuous batch tunnel washer and method
WO2013037407A1 (en) * 2011-09-14 2013-03-21 Ecolab Inc. Dosing device and method for dosing at least one fluid
WO2014180022A1 (zh) * 2013-05-07 2014-11-13 无锡小天鹅股份有限公司 洗衣机及其洗涤剂投放组件
US20200325618A1 (en) * 2019-04-12 2020-10-15 Lg Electronics Inc. Method and apparatus for washing machine
CN111962265A (zh) * 2020-07-24 2020-11-20 青岛海尔滚筒洗衣机有限公司 一种流路转换器及投放装置及洗衣机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08323088A (ja) * 1995-06-02 1996-12-10 Mitsubishi Heavy Ind Ltd 連続式水洗機
EP2044877A1 (de) * 2007-10-05 2009-04-08 Whirlpool Corporation Waschgerät mit Mehrquellen-Waschhilfepumpe
US20110296626A1 (en) 2010-06-03 2011-12-08 Pellerin Milnor Corporation Continuous batch tunnel washer and method
WO2013037407A1 (en) * 2011-09-14 2013-03-21 Ecolab Inc. Dosing device and method for dosing at least one fluid
WO2014180022A1 (zh) * 2013-05-07 2014-11-13 无锡小天鹅股份有限公司 洗衣机及其洗涤剂投放组件
US20200325618A1 (en) * 2019-04-12 2020-10-15 Lg Electronics Inc. Method and apparatus for washing machine
CN111962265A (zh) * 2020-07-24 2020-11-20 青岛海尔滚筒洗衣机有限公司 一种流路转换器及投放装置及洗衣机

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Publication number Publication date
WO2022199962A1 (en) 2022-09-29

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