WO2007090395A1 - A cleaning assembly - Google Patents

A cleaning assembly Download PDF

Info

Publication number
WO2007090395A1
WO2007090395A1 PCT/DK2007/000043 DK2007000043W WO2007090395A1 WO 2007090395 A1 WO2007090395 A1 WO 2007090395A1 DK 2007000043 W DK2007000043 W DK 2007000043W WO 2007090395 A1 WO2007090395 A1 WO 2007090395A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
nozzles
housing
liquid
tank
Prior art date
Application number
PCT/DK2007/000043
Other languages
French (fr)
Inventor
Aleksander Lindros
Original Assignee
Alfa Laval Tank Equipment A/S
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 Alfa Laval Tank Equipment A/S filed Critical Alfa Laval Tank Equipment A/S
Priority to DK07702461.0T priority Critical patent/DK1984127T3/en
Priority to ES07702461.0T priority patent/ES2602756T3/en
Priority to CN2007800048352A priority patent/CN101378852B/en
Priority to JP2008553613A priority patent/JP4774444B2/en
Priority to EP07702461.0A priority patent/EP1984127B1/en
Priority to US12/097,005 priority patent/US8177917B2/en
Publication of WO2007090395A1 publication Critical patent/WO2007090395A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
    • B08B9/0936—Cleaning containers, e.g. tanks by the force of jets or sprays using rotating jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B05B15/555—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids discharged by cleaning nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
    • B08B9/0813—Cleaning containers having tubular shape, e.g. casks, barrels, drums by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0409—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements
    • B05B3/0418—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine
    • B05B3/0422—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine with rotating outlet elements
    • B05B3/0445—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine with rotating outlet elements the movement of the outlet elements being a combination of two movements, one being rotational

Definitions

  • the invention relates to a cleaning assembly, in particular to be mounted internally in a tank, said assembly comprising a cleaning housing mounted on a liquid supply pipe and having means for turning the housing at the same time as a hub having nozzles is rotated.
  • Assemblies of this type are widely used for the cleaning of tanks of any type in that nozzles eject cleaning liquid in a so-called cleaning pattern during the combined turning and rotation, such that the tank is cleaned effectively.
  • Patent Application US 2003/0145880 A1 discloses a solution, where the outer surfaces of the cleaning assembly itself are flushed by cleaning liquid in order to satisfy the hygiene requirements in the food processing and medicinal industries.
  • Some narrow openings are provided where the liquid supply pipe is introduced through the top of the tank, allowing cleaning liquid to seep down over the liquid supply pipe.
  • a nozzle is arranged in the introduction area at the top of the tank for the supply of cleaning liquid under pressure to the outer side of the liquid supply pipe. The nozzle is directed inwards to- ward the pipe close to the top of the tank, so that the cleaning liquid can dissolve any impurities and flow down the pipe.
  • the proposal provides no solution as to how to ensure that the cleaning head is cleaned sufficiently.
  • Another patent DK 171410 B1 discloses a proposal as to how the cleaning head itself may be cleaned by flushing it with cleaning liquid.
  • the gaps occurring between the fixed part and the turnable part of the cleaning head and between the hub and the turnable part of the housing are used for ejecting cleaning liquid over the outer surface of the cleaning head.
  • the hub is provided with a baffle which is capable of directing the rotating cleaning jet from the gaps of the hub against the surfaces of the cleaning head. As the cleaning jets are ejected at the same time as the housing turns and the hub rotates, the entire surface of the housing is thus reached.
  • the object of the invention is to provide an assembly to satisfy these requirements of total cleaning, and this is achieved according to the invention in that one or more nozzle openings are additionally provided on the turn- able part of the housing, said nozzles ejecting a liquid jet upwards against the supply pipe for the cleaning of it during the turning movement.
  • a liquid film is hereby produced on the surface, which cleans the external surface of the equipment.
  • these additional nozzles may be configured as channels between the inner liquid space and the surface of the housing.
  • the jets may be adjusted so as to allow flushing, as needed, of the pipe member and the stationary part of the housing.
  • the drawing shows a cleaning assembly mounted on a stay or a pipe 3, which extends from the tank wall 2 and a suitable distance into the tank 11.
  • the cleaning head itself is mounted at the end of the pipe 3 in the form of a stationary hub cone 10, in which the drive motor is present.
  • This motor is constructed as a liquid-driven rotor which, via a gear, partly turns the housing 4 as indicated by an arrow 4a, partly the hub 5 which is caused to rotate as indicated by an arrow 5a.
  • the rotary hub 5 has mounted thereon four nozzles 6 through which the flushing water is ejected during the combined turning 4a and rotation 5a.
  • one or more additional nozzles 7 are provided in the turnable housing 4 in the form of either bores to create nozzle openings or by means of nozzles screwed into it. These nozzles are oriented such that during the turning 4a of the housing 4 they eject one or more liquid jets upwards for the cleaning of the stationary parts, such as the hub cone 10 and the pipe 3.
  • the jet/jets is/are adapted to sweep the parts in such a manner that all areas are cleaned thoroughly during the turning 4a, and a liquid film is produced on the surface.
  • the nozzle or nozzles 7 receive pressure liquid from the interior of the housing 4, and this liquid also drives the motor and is conveyed to the cleaning nozzles 6.
  • the used cleaning liquid is sucked out from the tank in a generally known manner by means of a discharge device (not shown).
  • a discharge device (not shown).
  • the invention may also be performed on a cleaning head which is driven by a motor and a gear spaced from the cleaning head itself, e.g. in that the driving equipment is mounted externally on the tank.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Nozzles (AREA)

Abstract

To achieve complete cleaning of a tank (11) by means of a cleaning head (4, 5) having nozzles (6) mounted on a liquid supply pipe (3), the cleaning head (4) according to the invention is provided with one or more nozzle openings, nozzles (7), which eject a jet/jets (8, 9) against the supply pipe/suspension (3). This ensures that the stationary parts of the cleaning equipment (3, 10) are cleaned effectively during the turning (4a) of the cleaning head (4) and thereby of the nozzle/nozzles (7).

Description

A CLEANING ASSEMBLY
The prior art
The invention relates to a cleaning assembly, in particular to be mounted internally in a tank, said assembly comprising a cleaning housing mounted on a liquid supply pipe and having means for turning the housing at the same time as a hub having nozzles is rotated.
Assemblies of this type are widely used for the cleaning of tanks of any type in that nozzles eject cleaning liquid in a so-called cleaning pattern during the combined turning and rotation, such that the tank is cleaned effectively.
However, there is a need for also ensuring that the combined suspension and liquid supply system, too, is cleaned effectively.
Increasing hygiene requirements, particularly in the food processing and medicinal industries, make it necessary to ensure that everything in the tank, i.e. including the assembly, etc., is cleaned completely during the ac- tual cleaning process.
The Patent Application US 2003/0145880 A1 discloses a solution, where the outer surfaces of the cleaning assembly itself are flushed by cleaning liquid in order to satisfy the hygiene requirements in the food processing and medicinal industries.
Some narrow openings are provided where the liquid supply pipe is introduced through the top of the tank, allowing cleaning liquid to seep down over the liquid supply pipe. Further, a nozzle is arranged in the introduction area at the top of the tank for the supply of cleaning liquid under pressure to the outer side of the liquid supply pipe. The nozzle is directed inwards to- ward the pipe close to the top of the tank, so that the cleaning liquid can dissolve any impurities and flow down the pipe.
However, it has been found that the cleaning effect of this solution is not as complete as is required, because the liquid jet from the nozzle or from the mentioned narrow openings for cleaning liquid cannot get into the corners in the area of the top of the tank where the liquid supply pipe is introduced.
In addition, the proposal provides no solution as to how to ensure that the cleaning head is cleaned sufficiently.
Another patent DK 171410 B1 discloses a proposal as to how the cleaning head itself may be cleaned by flushing it with cleaning liquid. Here, the gaps occurring between the fixed part and the turnable part of the cleaning head and between the hub and the turnable part of the housing, are used for ejecting cleaning liquid over the outer surface of the cleaning head. Moreover, the hub is provided with a baffle which is capable of directing the rotating cleaning jet from the gaps of the hub against the surfaces of the cleaning head. As the cleaning jets are ejected at the same time as the housing turns and the hub rotates, the entire surface of the housing is thus reached.
However, the patent provides no solution as to how the supply pipe and its introduction area through the top of the tank is cleaned.
The object of the invention
The object of the invention is to provide an assembly to satisfy these requirements of total cleaning, and this is achieved according to the invention in that one or more nozzle openings are additionally provided on the turn- able part of the housing, said nozzles ejecting a liquid jet upwards against the supply pipe for the cleaning of it during the turning movement.
It is ensured in this surprisingly simple manner that the parts of the assembly which are disposed above the tumable and rotating parts of the cleaning head are cleaned effectively at the same time as the other parts, i.e. tank and cleaning head, are cleaned in one and the same operation.
A liquid film is hereby produced on the surface, which cleans the external surface of the equipment.
When, as stated in claim 2, the nozzle or the nozzles are provided on the part of the turnable head which points toward the rotating hub having the nozzles, these additional nozzles may be configured as channels between the inner liquid space and the surface of the housing.
Finally, it is expedient, as stated in claim 3, that the jets may be adjusted so as to allow flushing, as needed, of the pipe member and the stationary part of the housing.
The drawing
An example of an embodiment of the assembly according to the invention will be described more fully below with reference to the drawing, which shows an assembly mounted in a tank.
Description of an exemplary embodiment
The drawing shows a cleaning assembly mounted on a stay or a pipe 3, which extends from the tank wall 2 and a suitable distance into the tank 11.
The cleaning head itself is mounted at the end of the pipe 3 in the form of a stationary hub cone 10, in which the drive motor is present.
This motor is constructed as a liquid-driven rotor which, via a gear, partly turns the housing 4 as indicated by an arrow 4a, partly the hub 5 which is caused to rotate as indicated by an arrow 5a.
In the example shown, the rotary hub 5 has mounted thereon four nozzles 6 through which the flushing water is ejected during the combined turning 4a and rotation 5a.
According to the invention, one or more additional nozzles 7 are provided in the turnable housing 4 in the form of either bores to create nozzle openings or by means of nozzles screwed into it. These nozzles are oriented such that during the turning 4a of the housing 4 they eject one or more liquid jets upwards for the cleaning of the stationary parts, such as the hub cone 10 and the pipe 3.
As indicated by arrows 8 and 9, the jet/jets is/are adapted to sweep the parts in such a manner that all areas are cleaned thoroughly during the turning 4a, and a liquid film is produced on the surface.
The nozzle or nozzles 7 receive pressure liquid from the interior of the housing 4, and this liquid also drives the motor and is conveyed to the cleaning nozzles 6.
Hereby, both the tank 11 and the cleaning equipment 3, 10 as well as the cleaning head 4 and 5 itself are cleaned effectively upon supply of pressure liquid to the equipment.
The used cleaning liquid is sucked out from the tank in a generally known manner by means of a discharge device (not shown). Instead of the cleaning head shown and described, the invention may also be performed on a cleaning head which is driven by a motor and a gear spaced from the cleaning head itself, e.g. in that the driving equipment is mounted externally on the tank.

Claims

PATENT CLAIMS
1. A cleaning assembly, in particular to be mounted internally in a tank, said assembly comprising a cleaning housing mounted on a liquid supply pipe and having means for turning the housing at the same time as a hub having nozzles is rotated, characterized in that one or more nozzle openings (7) are additionally provided on the turnable part of the housing (4), said nozzles (7) ejecting a liquid jet (8, 9) against the supply pipe (3) for the cleaning of it during the turning movement (4a).
2. A cleaning assembly according to claim 1, characterized in that the nozzle or nozzles (7) are provided on the side of the housing (4) which faces toward the rotating hub (5).
3. A cleaning assembly according to claims 1 and 2, characterized in that the nozzles (7) are configured such that the jets (8, 9) are directed toward various points on the housing (10) and/or the pipe (3).
PCT/DK2007/000043 2006-02-08 2007-01-30 A cleaning assembly WO2007090395A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DK07702461.0T DK1984127T3 (en) 2006-02-08 2007-01-30 CLEANING UNIT
ES07702461.0T ES2602756T3 (en) 2006-02-08 2007-01-30 Cleaning set
CN2007800048352A CN101378852B (en) 2006-02-08 2007-01-30 A cleaning assembly
JP2008553613A JP4774444B2 (en) 2006-02-08 2007-01-30 Cleaning assembly
EP07702461.0A EP1984127B1 (en) 2006-02-08 2007-01-30 A cleaning assembly
US12/097,005 US8177917B2 (en) 2006-02-08 2007-01-30 Cleaning assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200600176 2006-02-08
DKPA200600176 2006-02-08

Publications (1)

Publication Number Publication Date
WO2007090395A1 true WO2007090395A1 (en) 2007-08-16

Family

ID=38006441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2007/000043 WO2007090395A1 (en) 2006-02-08 2007-01-30 A cleaning assembly

Country Status (7)

Country Link
US (1) US8177917B2 (en)
EP (1) EP1984127B1 (en)
JP (1) JP4774444B2 (en)
CN (1) CN101378852B (en)
DK (1) DK1984127T3 (en)
ES (1) ES2602756T3 (en)
WO (1) WO2007090395A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010117324A1 (en) * 2009-04-09 2010-10-14 Scanjet Marine Ab Flushing device
EP3037175A1 (en) * 2014-12-22 2016-06-29 Alfa Laval Corporate AB Rotatable tank cleaning nozzle head comprising a self cleaning nozzle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2626148B1 (en) * 2012-02-13 2019-03-27 Alfa Laval Corporate AB Monitoring of systems for internal cleaning of containers
ES2585815T3 (en) 2012-11-08 2016-10-10 Alfa Laval Corporate Ab Liquid ejection systems with nozzle that has two outlets
JP6189179B2 (en) * 2013-11-01 2017-08-30 シスメックス株式会社 Container cleaning device and analyzer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247532A2 (en) * 1986-05-26 1987-12-02 Helmut Becker Cleaning device for containers and the like
WO1992004994A1 (en) * 1990-09-20 1992-04-02 Toftejorg A/S Apparatus for the cleaning of a closed compartment
WO2000020134A1 (en) * 1998-10-05 2000-04-13 Aarne Hurskainen Apparatus for process washing

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3068807D1 (en) 1979-10-03 1984-09-06 Beaumont Uk Ltd Tank cleaning apparatus
JPH03169511A (en) * 1989-11-28 1991-07-23 Ikeuchi:Kk Automatic cleaning device for inner wall of mixer tank for production of ready mixed concrete
JP2578578B2 (en) * 1994-06-30 1997-02-05 株式会社キット Three-dimensional nozzle device
CN2238093Y (en) * 1995-03-04 1996-10-23 天骏(福州)机械工程有限公司 Automatic low rotation speed stereoscopic jet mechanism
DE19811421C2 (en) * 1998-03-17 2001-09-13 Alfa Laval Lkm As Kolding Tank cleaning device
US6772774B2 (en) * 1999-12-16 2004-08-10 Kimasaru Ura Method and device for washing drain pipe
AU2002336914A1 (en) * 2001-09-07 2003-03-24 Gunclean Toftejorg Ab Equipment and use of the equipment for cleaning a tank space or preparation of drilling mud

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247532A2 (en) * 1986-05-26 1987-12-02 Helmut Becker Cleaning device for containers and the like
WO1992004994A1 (en) * 1990-09-20 1992-04-02 Toftejorg A/S Apparatus for the cleaning of a closed compartment
DK171410B1 (en) * 1990-09-20 1996-10-21 Toftejorg As Closed room cleaning device
WO2000020134A1 (en) * 1998-10-05 2000-04-13 Aarne Hurskainen Apparatus for process washing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010117324A1 (en) * 2009-04-09 2010-10-14 Scanjet Marine Ab Flushing device
US9205471B2 (en) 2009-04-09 2015-12-08 Scanjet Marine Ab Flushing device
EP3037175A1 (en) * 2014-12-22 2016-06-29 Alfa Laval Corporate AB Rotatable tank cleaning nozzle head comprising a self cleaning nozzle
WO2016102367A1 (en) * 2014-12-22 2016-06-30 Alfa Laval Corporate Ab Rotatable tank cleaning nozzle head comprising a self cleaning nozzle
US10722913B2 (en) 2014-12-22 2020-07-28 Alfa Laval Corporate Ab Liquid ejection apparatus

Also Published As

Publication number Publication date
JP2009525853A (en) 2009-07-16
US8177917B2 (en) 2012-05-15
JP4774444B2 (en) 2011-09-14
CN101378852B (en) 2010-08-04
CN101378852A (en) 2009-03-04
US20090260661A1 (en) 2009-10-22
ES2602756T3 (en) 2017-02-22
DK1984127T3 (en) 2017-01-30
EP1984127A1 (en) 2008-10-29
EP1984127B1 (en) 2016-10-19

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