EP2241241A1 - Dispositif d'extraction de liquide à partir d'un récipient - Google Patents

Dispositif d'extraction de liquide à partir d'un récipient Download PDF

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Publication number
EP2241241A1
EP2241241A1 EP09005309A EP09005309A EP2241241A1 EP 2241241 A1 EP2241241 A1 EP 2241241A1 EP 09005309 A EP09005309 A EP 09005309A EP 09005309 A EP09005309 A EP 09005309A EP 2241241 A1 EP2241241 A1 EP 2241241A1
Authority
EP
European Patent Office
Prior art keywords
container
suction
suction chamber
liquid
level sensor
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Withdrawn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
EP09005309A
Other languages
German (de)
English (en)
Inventor
Ludwig Eckmüller
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.)
Chemische Fabrik Dr Weigert GmbH and Co
Original Assignee
Chemische Fabrik Dr Weigert GmbH and Co
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 Chemische Fabrik Dr Weigert GmbH and Co filed Critical Chemische Fabrik Dr Weigert GmbH and Co
Priority to EP09005309A priority Critical patent/EP2241241A1/fr
Publication of EP2241241A1 publication Critical patent/EP2241241A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4418—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants in the form of liquids
    • 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

Definitions

  • the invention relates to a device for removing liquid from a container according to the preamble of claim 1 and an arrangement of a liquid container and a device according to the invention.
  • a variety of consumables is supplied in particular to commercial and industrial consumers in large containers such as barrels or canisters. The removal takes place regularly by introduced from above into the container suction lances. Typical examples of such provision of liquid consumables are in the commercial cleaning of utensils, CIP (Cleaning Place) cleaning of equipment, or machine reprocessing of surgical instruments.
  • the containers or the suction lances regularly have a fill level sensor which emits a signal when falling below a predetermined fill level of the container and, as a rule, interrupts the liquid removal, possibly also the corresponding process (For example, the dishwasher) shut down or interrupt the operation.
  • a fill level sensor which emits a signal when falling below a predetermined fill level of the container and, as a rule, interrupts the liquid removal, possibly also the corresponding process (For example, the dishwasher) shut down or interrupt the operation.
  • the invention has for its object to provide a device of the type mentioned, which combines high reliability with good efficiency.
  • the device (7) has a closed suction space (6) enclosing the suction end (8) of the suction lance and has at least one liquid connection to the interior of the container in its region facing the container bottom (11, 12), wherein a fill level sensor (15) in the latter Suction chamber (6) is arranged.
  • a suction lance is any extraction line (rigid or flexible), with the help of which container contents can be deducted.
  • the suction lance is preferably associated with a pump. This serves to convey liquid for the purpose of removing liquid from the container.
  • the pump may be part of the device according to the invention; Alternatively, the device itself may not have its own pump, but be connected to a pump of the device fed with fluid.
  • the term level sensor refers to any liquid level detection device in the container. These may be optical sensors, electrical sensors (for example conductivity measurement) or mechanical sensors. Frequently, mechanical sensors are used in the form of a so-called float switch.
  • the device has a closed suction space, which encloses the suction end of the suction lance.
  • Enclosing means that the suction end of the suction lance is located in this suction chamber.
  • “Closed” means that this suction chamber has fluid connections to the container interior only in the areas described below and is otherwise substantially liquid-tight.
  • Liquid containers can never be completely emptied by means of suction lances. A residual amount remains for a reason in the container, since for safe operation, for example, a connected dishwasher, a suction of air must be safely avoided and therefore falls below a certainndhell Love the container further removal process must be canceled.
  • the commonly used level sensors such as float switches always need a so-called functional height of the level, so do not give the "empty container" - signal only when a complete emptying has taken place, but already if a certain perennial Stirll Women (said function level ) is fallen below.
  • the core of the invention is to ensure by means of the suction chamber according to the invention that on the one hand a residual emptying of the container below the usual level in the art residual level (due to the minimum filling height of the suction lance used and the functional height of the level sensor) can lower, on the other hand within this closed suction chamber also on further emptying of the container a liquid level is maintained, which ensures a safe, air-free suction through the suction lance and on the other hand above the required functional height of a arranged within the suction level sensor.
  • the suction chamber has at least one fluid connection to the interior of the container in its region facing the container bottom (ie in the lower region).
  • liquid is first conveyed from the interior of the container into the suction space during removal, and then removed from the closed suction space with the removal line.
  • the liquid level in the container below the functional level of a level sensor or the minimum level for safe removal with a suction lance fall, while in the suction chamber, a corresponding liquid level is maintained.
  • the suction chamber in its direction away from the container bottom area (ie in the upper region, preferably on its upper side) to a vent.
  • the venting makes it possible that already during the immersion of the device according to the invention in a liquid container in the suction chamber initially existing air escapes through the vent and fills the suction chamber with liquid.
  • the vent is a check valve, which allows only an outflow of air from the suction chamber, but not a return flow of liquid and / or air.
  • the cross-sectional area of the suction chamber is selected to be as small as possible for accurately fitting the suction end of the suction lance and the filling level sensor.
  • the height of the suction chamber preferably corresponds at least to the height required to ensure the functionality of the level sensor used. For example, if a float switch is used as a level sensor, the height of the suction chamber is higher than the height of the float switch including its contact distance.
  • the liquid connection to the interior of the container arranged in the region of the suction space facing the container bottom has a riser, whose rise height preferably also corresponds at least to the required functional height of the filling level sensor.
  • the riser causes leaked in the lower region of the suction chamber by the liquid compound liquid in an upper region of the suction chamber in this exits. If air is sucked in after almost complete emptying of the container, the riser is a natural safeguard against the fact that the contents of the suction chamber through the fluid connection runs back into the container. As a result, a further improved emptying is effected.
  • two level sensors can be provided, one of which is arranged outside and one inside the suction space.
  • the fill level sensor arranged outside can emit a signal when falling below a predetermined fill level in the container that signals a container change due soon.
  • the arranged in the suction chamber level sensor gives when falling below the corresponding liquid level in the suction chamber a signal to change the container, optionally he can simultaneously interrupt the removal of liquid shut down the connected dishwasher or control other appropriate measures.
  • the invention further provides an arrangement comprising a liquid container and a device according to the invention arranged therein for removal of the liquid.
  • the liquid container may be formed, for example, as a barrel, canisters or the like.
  • the lower region of the suction chamber of the device according to the invention is preferably arranged in the region of the container bottom, more preferably it is lowered onto the container bottom.
  • the cross-sectional area of the suction space is preferably substantially less than the cross-sectional area of the container in its bottom area, for example the ratio of these areas may be 1 to 10 or less, preferably 1 to 20 or less. Preferably, these ratios correspond to the ratio of the residual volumes (in the suction chamber or in the entire container), which are required to ensure the required minimum level.
  • FIGS. 1 to 8 Therein show the FIGS. 1 to 8 a device according to the invention in different operating conditions.
  • a liquid container 1 has a filling / removal opening 2 at the top. It is, for example, a conventional screw cap opening of a canister or barrel.
  • a total of 3 designated liquid sampling device has a cylindrical housing 4 in the embodiment, the interior of which can communicate with the environment by means of openings 5 in the upper and middle region. The lower portion of the housing 4 forms a sealed suction chamber 6.
  • a suction line 7 has in the lower region of the suction chamber 6, a suction port 8, which is secured with a check valve 9 against backflow of liquid.
  • the suction opening 8 can suck liquid only from the interior of the suction chamber 6.
  • the passage of the suction line 7 from the upper portion of the housing 4 in the suction chamber 6 is formed liquid-tight.
  • the suction line 7 is connected at 10 to a pump, not shown, or continued to a consumption device (for example, a dishwasher), which has a corresponding pump.
  • a riser 11 with a arranged in the region of the bottom of the suction chamber 6 suction port 12 serves the liquid connection between the suction chamber 6 and the interior of the container 1.
  • a vent valve 13 is arranged, which is designed as a check valve and thus the backflow prevents air or liquid in the suction chamber 6.
  • Two float switches 14, 15 detect the level in the interior of the cylindrical housing 4 and in the suction chamber 6.
  • the signals of the float switches 14, 15 are removed by means of a circuit 16 and used to control and / or monitoring the liquid removal process.
  • the bottom of the device according to the invention may have at 17 indicated elevations, which ensure that the Intake opening 12 of the riser 11 always remains primed even when placing the device according to the invention on the bottom of the container 1.
  • FIG. 1 shows the immersion of the device according to the invention in a filled liquid container 1.
  • liquid flows through the opening 12 and the riser 11 into the suction chamber 6; the air contained therein escapes through the vent valve 13.
  • the suction chamber 6 is completely filled with liquid and the float switch 15 floats.
  • Liquid also flows through the opening 5 into the upper region of the housing 4 and causes the float switch 14 to float. Both float switches thus signal that the device is ready for liquid extraction.
  • the device is screwed, for example, on the container opening.
  • the length of the projecting into the container part of the removal device can be adjusted according to the invention to allow adaptation to different heights of a liquid container 1.
  • FIG. 2 shows the device according to the invention in normal operation.
  • liquid is sucked out of the suction chamber 6.
  • the riser 11 liquid flows from the container interior in the suction chamber 6 after.
  • the liquid level in the container 1 drops, and at the same time, accordingly, the liquid level in the upper region of the housing 4 drops.
  • FIG. 3 is the liquid level in the container 1 has dropped so far that the float switch 14 emits a signal.
  • This signal indicates that a change of the liquid container 1 is due soon.
  • the representation in the figures is not to scale, but the device according to the invention in relation to the container 1 is shown greatly enlarged.
  • the float switch 14 is not at about half-filled liquid container 1 give the said residual signal, but only at a much lower level.
  • FIG. 4 shows an operating state in which the liquid level in the container 1 has fallen below the height of the suction chamber 6.
  • the suction chamber 6 remains filled with liquid in its entire height, as sucked liquid continues to flow through the riser 11 and designed as a check valve vent valve 13 prevents air from flowing into the suction chamber 6 from above.
  • FIG. 5 shows the same operating state as FIG. 4 ,
  • the level of liquid in the container 1 has reached a level at which normally the required for safe operation of the suction device minimum level would be reached and the removal process would have to be canceled.
  • the corresponding residual amount would therefore remain in the container.
  • FIG. 6 shows an operating condition in which the liquid level in the container 1 has dropped so far that on further liquid removal from the suction chamber 6 by means of the extraction line 7 air from the interior of the container 1 through the riser 11 into the suction chamber 6 is pulled.
  • the liquid level in the suction chamber 6 now begins to sink, he is indicated here by the reference numeral 18. Still a safe removal from the suction chamber 6 is guaranteed.
  • FIG. 7 is the liquid level 18 further dropped in the suction chamber 6 and now approaches the float switch 15th
  • FIG. 8 is the liquid level 18 dropped so far that now the float switch 15 emits a signal and the liquid removal is stopped.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Level Indicators Using A Float (AREA)
EP09005309A 2009-04-14 2009-04-14 Dispositif d'extraction de liquide à partir d'un récipient Withdrawn EP2241241A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09005309A EP2241241A1 (fr) 2009-04-14 2009-04-14 Dispositif d'extraction de liquide à partir d'un récipient

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09005309A EP2241241A1 (fr) 2009-04-14 2009-04-14 Dispositif d'extraction de liquide à partir d'un récipient

Publications (1)

Publication Number Publication Date
EP2241241A1 true EP2241241A1 (fr) 2010-10-20

Family

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EP09005309A Withdrawn EP2241241A1 (fr) 2009-04-14 2009-04-14 Dispositif d'extraction de liquide à partir d'un récipient

Country Status (1)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011035940A1 (fr) * 2009-09-24 2011-03-31 Henkel Ag & Co. Kgaa Procédé et système de détection de la rotation d'un bras de lavage dans un lave-vaisselle
WO2012072753A1 (fr) * 2010-12-01 2012-06-07 Ecolab Inc. Système d'aspiration pour aspirer une substance, de préférence un fluide, hors d'une bouteille
CN103234802A (zh) * 2013-04-08 2013-08-07 天津大学 固相萃取自动倒液缓冲瓶及其应用方法
CN103266450A (zh) * 2013-04-24 2013-08-28 无锡小天鹅股份有限公司 洗涤剂存储盒组件和具有它的洗衣机
DE102015210337A1 (de) * 2015-06-03 2016-12-08 BSH Hausgeräte GmbH Kaffeeautomat
DE102015109587A1 (de) * 2015-06-16 2016-12-22 Schulz Gmbh Vorrichtung zur Entnahme von Reinigungs- und Desinfektionsmittelkonzentrat
DE102018110155A1 (de) * 2018-04-26 2019-10-31 Beatrice Saier Sauglanze
EP3742133A1 (fr) * 2019-05-22 2020-11-25 Saier, Beatrice Système pour un dispositif de dosage, entre autre de milieux
DE102016001626B4 (de) 2015-02-13 2022-02-17 Schulz Gmbh Verfahren zur Bereitstellung eines Desinfektions- oder Reinigungskonzentrats
DE102018114909B4 (de) 2017-07-07 2024-04-04 Miele & Cie. Kg Verfahren zum Ermitteln einer Restzyklenzahl einer Reinigungsflüssigkeit in einem Vorratsbehälter eines maschinengesteuerten Reinigungs- oder Desinfektionsautomaten unter Verwendung einer Sauglanzeinheit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096260A1 (fr) * 1982-06-09 1983-12-21 INDUSTRIE ZANUSSI S.p.A. Doseur et distributeur pour machines à laver
US5743432A (en) * 1995-06-30 1998-04-28 U.N.X. Incorporated Liquid dispensing system
US5839454A (en) * 1997-03-14 1998-11-24 Matz; Warren W. Automatic detergent dispenser
DE19908181A1 (de) * 1998-07-27 2000-02-03 Ecolab Inc Flüssigkeitsabgabevorrichtung und Andockstation für einen passenden Behälter
DE20115173U1 (de) * 2001-09-14 2001-11-15 Miele & Cie. GmbH & Co., 33332 Gütersloh Dosiergebinde für eine programmgesteuerte Geschirrspülmaschine oder Waschmaschine
EP1815780A2 (fr) * 2006-02-07 2007-08-08 Miele & Cie. KG Système pour le dosage d'un agent de traitement dans un dipositif automatique de nettoyage ou désinfection
EP1884584A2 (fr) * 2006-07-31 2008-02-06 Indesit Company S.p.A. Machine à laver, en particulier lave-linge, comprenant un distributeur d'agents de lavage de grande capacité

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096260A1 (fr) * 1982-06-09 1983-12-21 INDUSTRIE ZANUSSI S.p.A. Doseur et distributeur pour machines à laver
US5743432A (en) * 1995-06-30 1998-04-28 U.N.X. Incorporated Liquid dispensing system
US5839454A (en) * 1997-03-14 1998-11-24 Matz; Warren W. Automatic detergent dispenser
DE19908181A1 (de) * 1998-07-27 2000-02-03 Ecolab Inc Flüssigkeitsabgabevorrichtung und Andockstation für einen passenden Behälter
DE20115173U1 (de) * 2001-09-14 2001-11-15 Miele & Cie. GmbH & Co., 33332 Gütersloh Dosiergebinde für eine programmgesteuerte Geschirrspülmaschine oder Waschmaschine
EP1815780A2 (fr) * 2006-02-07 2007-08-08 Miele & Cie. KG Système pour le dosage d'un agent de traitement dans un dipositif automatique de nettoyage ou désinfection
EP1884584A2 (fr) * 2006-07-31 2008-02-06 Indesit Company S.p.A. Machine à laver, en particulier lave-linge, comprenant un distributeur d'agents de lavage de grande capacité

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011035940A1 (fr) * 2009-09-24 2011-03-31 Henkel Ag & Co. Kgaa Procédé et système de détection de la rotation d'un bras de lavage dans un lave-vaisselle
WO2012072753A1 (fr) * 2010-12-01 2012-06-07 Ecolab Inc. Système d'aspiration pour aspirer une substance, de préférence un fluide, hors d'une bouteille
WO2012072744A1 (fr) * 2010-12-01 2012-06-07 Ecolab Inc. Système d'aspiration pour aspirer une substance, de préférence un fluide, hors d'une bouteille
WO2012072130A1 (fr) * 2010-12-01 2012-06-07 Ecolab Inc. Boîte pour contenir une substance, de préférence un fluide
CN103234802A (zh) * 2013-04-08 2013-08-07 天津大学 固相萃取自动倒液缓冲瓶及其应用方法
CN103266450B (zh) * 2013-04-24 2015-11-25 无锡小天鹅股份有限公司 洗涤剂存储盒组件和具有它的洗衣机
CN103266450A (zh) * 2013-04-24 2013-08-28 无锡小天鹅股份有限公司 洗涤剂存储盒组件和具有它的洗衣机
DE102016001626B4 (de) 2015-02-13 2022-02-17 Schulz Gmbh Verfahren zur Bereitstellung eines Desinfektions- oder Reinigungskonzentrats
DE102015210337A1 (de) * 2015-06-03 2016-12-08 BSH Hausgeräte GmbH Kaffeeautomat
DE102015109587A1 (de) * 2015-06-16 2016-12-22 Schulz Gmbh Vorrichtung zur Entnahme von Reinigungs- und Desinfektionsmittelkonzentrat
DE102015109587B4 (de) * 2015-06-16 2020-08-27 Schulz Gmbh Vorrichtung zur Entnahme von Reinigungs- und Desinfektionsmittelkonzentrat
DE102018114909B4 (de) 2017-07-07 2024-04-04 Miele & Cie. Kg Verfahren zum Ermitteln einer Restzyklenzahl einer Reinigungsflüssigkeit in einem Vorratsbehälter eines maschinengesteuerten Reinigungs- oder Desinfektionsautomaten unter Verwendung einer Sauglanzeinheit
DE102018110155A1 (de) * 2018-04-26 2019-10-31 Beatrice Saier Sauglanze
EP3742133A1 (fr) * 2019-05-22 2020-11-25 Saier, Beatrice Système pour un dispositif de dosage, entre autre de milieux

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