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WO2005018837A1 - Dispositif d'assainissement portatif - Google Patents

Dispositif d'assainissement portatif Download PDF

Info

Publication number
WO2005018837A1
WO2005018837A1 PCT/SG2004/000247 SG2004000247W WO2005018837A1 WO 2005018837 A1 WO2005018837 A1 WO 2005018837A1 SG 2004000247 W SG2004000247 W SG 2004000247W WO 2005018837 A1 WO2005018837 A1 WO 2005018837A1
Authority
WO
WIPO (PCT)
Prior art keywords
steam
steam generator
channel
water
pump
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.)
Ceased
Application number
PCT/SG2004/000247
Other languages
English (en)
Inventor
Kam Weng Choy
Hwai Kiang Tan
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.)
Technoscience Integrated Technology Appliances Pte Ltd
Original Assignee
Technoscience Integrated Technology Appliances Pte Ltd
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 Technoscience Integrated Technology Appliances Pte Ltd filed Critical Technoscience Integrated Technology Appliances Pte Ltd
Publication of WO2005018837A1 publication Critical patent/WO2005018837A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4086—Arrangements for steam generation
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/34—Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/288—Instantaneous electrical steam generators built-up from heat-exchange elements arranged within a confined chamber having heat-retaining walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam

Definitions

  • a portable sanitizer A portable sanitizer.
  • the present invention relates to cleaning devices in which a jet of dry steam is directed onto a workpiece to remove dirt and contaminants.
  • a steam cleaning device for producing a flow of substantially dry steam for cleaning and sanitizing, the device comprising of: a housing; a water reservoir contained within the housing for storing water; a steam generator of instantaneous type comprises of at least one steam channel having substantially smooth walls for containing water introduced into the steam channel from the water reservoir; heating means in the steam generator for heating the substantially smooth walls of the steam channel to heat and vaporize water inside the steam channel into the substantially dry steam by internal forced-convection boiling; and a pump for pumping water from the water reservoir into the steam generator.
  • the steam generator adopted internal, forced-convection boiling principle or commonly referred to as two-phase flow and is characterized by rapid changes from water to vapor in the flow direction of the water through the steam channel.
  • the vapor is superheated by forced convection from the surfaces of the steam channel to form the flow of dry steam.
  • such steam generator does not involve the impingement of water droplets against irregular cavity wall surfaces. Instead there is impingement against relatively smooth or uniform surfaces. Therefore, providing much simple and faster way of constructing the steam generator.
  • the heating means in the steam generator comprises at least one cartridge heater.
  • the at least one steam channel of the steam generator is provided with an insert having means for deflecting and distributing water across the substantially smooth walls of the steam channel.
  • the insert is a wire coil for deflecting and distributing water across the substantially smooth walls of the steam channel.
  • the wire coil is in direct contact with the substantially smooth walls of the steam channel.
  • the at least one steam channel of the steam generator is provided with a screen disposed above at least a portion of the substantially smooth walls of the steam channel and the screen is provided with means for deflecting and distributing water above and on the substantially smooth walls.
  • the steam generator is connected to a first temperature responsive means controlling the pump whereby the pump only start to pump water from the water reservoir into the steam generator when the temperature of the steam generator is at least above 100°C.
  • the first temperature responsive means is a normally open thermostat that switch on the pump when the temperature of the steam generator is in between 111°C and 119°C.
  • the steam generator is a flow through steam generator having at least one steam channel follows a straight course.
  • the flow through steam generator is formed by an aluminum extruded body having a cylindrical channel through its body and the channel is sealed by a first and a second coupling means.
  • the steam generator is a flow through steam generator having at least one steam channel follows a meandering or labyrinth course. The flow through steam generator is commonly known as a flow heater.
  • the steam generator is connected to a second temperature responsive means controlling the heating means whereby the steam generator is prevented from overheating by cutting off electrical supply to the heating means when the temperature of the steam generator exceeded 195°C.
  • the second temperature responsive means is a normally closed thermostat that switch off the heating means when the temperature of the steam generator is in between 195°C and 205°C.
  • a nozzle is coupled to the housing for directing the substantially dry steam to a workpiece.
  • the housing is provided with a base plate located at the bottom side of the housing.
  • the device is provided with an over-pressure safety valve. It is preferred that in such event the steam is released from the over-pressure safety valve via a safety steam passage through an opening in the base plate.
  • the device is provided with a thermal fuse connected in series between an input of an electrical main power supply and the heating means and the pump.
  • Figure 1 is a schematic illustration of a steam cleaning device according to an embodiment of present invention
  • Figure 2 is a prospective view of the preferred embodiment of the steam cleaning device of figure 1
  • Figure 3 is a simplified circuit diagram
  • Figure 4 is an exploded perspective view of the preferred embodiment of the steam cleaning device of figure 1.
  • a steam generator of instantaneous type 20 as shown in figure 1 is composed of a body 22, a steam channel 24 embodied in the body and a heating means 26. It is preferred that the heating means 26 is embedded in the body 22. Preferably, the heating means 26 is a cartridge heater which is embedded in the body 22.
  • the steam channel 24 has relatively smooth or uniform surfaces/walls and irregularities are not etched or cut into the surfaces.
  • a pump 28 will pump water into the steam channel 24.
  • the heating means 26 in the steam generator 20 will raise the temperature of the substantially smooth walls of the steam channel sufficiently to vaporize water contained inside the steam channel into reasonably dry steam by internal forced-convection boiling.
  • the steam cleaning device 10 has a housing 50 connected to a nozzle 40.
  • a handle 32 is formed in the housing with an elliptical opening 34 for comfort of handling.
  • the steam cleaning device 10 has a water reservoir 30 with a filling opening 36. It is preferred that a baseplate 38 is fitted at the bottom side of the housing 50.
  • the pump 28 is connected to the water reservoir 30, and to an electrical supply circuit with a control switch 44 which can be operated via a pushbutton 42 in the handle 32 of the steam cleaning device 10 (see figure 2).
  • the steam generator 20 is situated downstream of the pump 28. It is preferred that an electromechanical pump is used to pump water from the water reservoir 30 into the steam channel 24 of the steam generator 20.
  • the pump 28 is connected to the inlet coupling 47 of the steam generator 20 by a first water passage 29. If steam supply is desired, the switch 44 is energized for activating the pump 28, whereby water is pumped into the steam generator 20.
  • the steam generator 20 is a flow through steam generator having at least one steam channel 24 follows a straight course.
  • the steam channel follows a meandering or labyrinth course.
  • the flow through steam generator is also known as a flow heater.
  • the at least one steam channel 24 of the steam generator 20 is provided with an insert 54 having means for deflecting and distributing water across the substantially smooth walls of the steam channel 24. One thus obtains a better vaporization of the water, which translates into a reduction in the expulsion of water in liquid form through the steam channel 24 formed in the steam generator 20 during initial heating.
  • the insert 54 is a wire coil for deflecting and distributing water across the substantially smooth walls of the steam channel 24.
  • the wire coil is in direct contact with the substantially smooth walls of the steam channel 24.
  • the wire coil is preferably an open wire coil made of a stainless steel material or other non- corrosive material such chromium, titanium or like.
  • the at least one steam channel 24 of the steam generator 20 is provided with a screen (not shown) disposed above at least a portion of the substantially smooth walls of the steam channel 24 and the screen is provided with means for deflecting and distributing water above and on the substantially smooth walls.
  • a series of opening forming a network of the screen.
  • the steam generator 20 is connected to a first temperature responsive means 56 confrolling the pump 28 whereby the pump only start to pump water from the water reservoir 30 into the steam generator 30 when the temperature of the steam generator is at least above 100°C.
  • the first temperature responsive means 56 is a normally open thermostat that switch on the pump when the temperature of the steam generator 20 is in between 111°C and 119°C.
  • the normally open thermostat has a closed temperature setting of about 115 ⁇ 3.5 °C and a reset temperature setting of about 103 ⁇ 5 °C.
  • the steam generator 20 is connected to a second temperature responsive means 58 controlling the heating means 26 whereby the steam generator 20 is prevented from overheating by cutting off electrical supply to the heating means 26 when the temperature of the steam generator 20 exceeded 195°C.
  • the second temperature responsive means 58 is a normally closed thermostat that switch off the heating means 26 when the temperature of the steam generator 20 is in between 195°C and 205°C.
  • the normally closed thermostat has an open temperature setting of about 200 ⁇ 5 °C and a reset temperature setting of about 183 ⁇ 7 °C.
  • the steam cleaning device 10 is provided with a thermal fuse 60 connected in series between an input of an electrical main power supply and the heating means 26 and the pump 28.
  • the thermal fuse 60 is connected to the steam generator 20 and it is preferred that the thermal fuse 60 has a breakdown temperature setting of about 240 °C.
  • the steam generator 20 is a flow through steam generator that is formed by an aluminum extruded body 52 having a cylindrical channel through its body and the channel is sealed by a first coupling means 46 and a second coupling means 48.
  • the first coupling means 46 is an over-pressure safety valve. This ensures that in an event when there is a blockage along the steam flow path and the pressure built up exceeded a safety level, the steam is released from the over- pressure safety valve via a safety steam passage 62 through an opening in the base plate 38.
  • the second coupling means 48 is connected to the nozzle 40 by a first steam passage
  • the nozzle 40 is coupled to the housing 50 for directing the substantially dry steam to a workpiece.
  • the steam cleaning device 10 is designed to be compact for easy storage and being compact and small in size, the steam cleaning device 10 can be easily be stored in a small cabinet.
  • the steam cleaning device 10 is also designed to be hghtweight, which is therefore easy to transport around. Hence, providing much greater portability and convenience.
  • the unique characteristic of the steam cleaning device 10 adapt it for use in cleaning and sanitizing a workpiece. Being lightweight and small, the steam cleaning device 10 can be put on kitchen sink to sanitize cutlery and utensils. It is also capable of steam wash cutlery and utensils without any detergent. Grease can be removed from cutlery and utensils by high temperature steam. Other applications include sanitizing curtain, sofa, tables, chairs including clinical operating table and chair.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

L'invention concerne un dispositif d'assainissement à la vapeur (10) produisant un flux de vapeur sensiblement sèche pour le nettoyage et l'assainissement. Il (10) comprend une enceinte qui entoure un réservoir d'eau (30) et un générateur de vapeur (20) de type instantané, avec au moins un canal de vapeur (24) à parois raisonnablement lisses contenant l'eau introduite dans ledit canal (24) depuis le réservoir (30). Une pompe soutire l'eau du réservoir (30) dans le générateur (20). Le dispositif (10) comprend un système de chauffage (26) permettant de chauffer les parois du canal (24), ce qui chauffe et vaporise l'eau à l'intérieur du canal (24) sous la forme de vapeur sensiblement sèche, par ébullition interne à convection forcée. De préférence, la vapeur formée dans le canal (24) peut être surchauffée dans ce canal (24) et s'évacuer sur une pièce à travailler via une buse (40) couplée à l'enceinte. Le dispositif (10) est conçu de façon compacte aux fins de rangement aisé.
PCT/SG2004/000247 2003-08-23 2004-08-17 Dispositif d'assainissement portatif Ceased WO2005018837A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG200304493-0 2003-08-23
SG200304493 2003-08-23

Publications (1)

Publication Number Publication Date
WO2005018837A1 true WO2005018837A1 (fr) 2005-03-03

Family

ID=34215086

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2004/000247 Ceased WO2005018837A1 (fr) 2003-08-23 2004-08-17 Dispositif d'assainissement portatif

Country Status (1)

Country Link
WO (1) WO2005018837A1 (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1793164A1 (fr) * 2005-12-05 2007-06-06 Siemens Aktiengesellschaft Tube de générateur de vapeur, procédé de fabrication associé et chaudière à vapeur à passage unique
US7591859B2 (en) 2006-08-15 2009-09-22 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a weight sensor
US7627920B2 (en) 2006-06-09 2009-12-08 Whirlpool Corporation Method of operating a washing machine using steam
US7665332B2 (en) 2006-08-15 2010-02-23 Whirlpool Corporation Steam fabric treatment appliance with exhaust
US7681418B2 (en) 2006-08-15 2010-03-23 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor
US7690062B2 (en) 2007-08-31 2010-04-06 Whirlpool Corporation Method for cleaning a steam generator
US7707859B2 (en) 2006-08-15 2010-05-04 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance
US7730568B2 (en) 2006-06-09 2010-06-08 Whirlpool Corporation Removal of scale and sludge in a steam generator of a fabric treatment appliance
US7753009B2 (en) 2006-10-19 2010-07-13 Whirlpool Corporation Washer with bio prevention cycle
US7765628B2 (en) 2006-06-09 2010-08-03 Whirlpool Corporation Steam washing machine operation method having a dual speed spin pre-wash
US7841219B2 (en) 2006-08-15 2010-11-30 Whirlpool Corporation Fabric treating appliance utilizing steam
US7861343B2 (en) 2007-08-31 2011-01-04 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US7886392B2 (en) 2006-08-15 2011-02-15 Whirlpool Corporation Method of sanitizing a fabric load with steam in a fabric treatment appliance
US7905119B2 (en) 2007-08-31 2011-03-15 Whirlpool Corporation Fabric treatment appliance with steam generator having a variable thermal output
US7918109B2 (en) 2007-08-31 2011-04-05 Whirlpool Corporation Fabric Treatment appliance with steam generator having a variable thermal output
US7941885B2 (en) 2006-06-09 2011-05-17 Whirlpool Corporation Steam washing machine operation method having dry spin pre-wash
US7966683B2 (en) 2007-08-31 2011-06-28 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US8037565B2 (en) 2007-08-31 2011-10-18 Whirlpool Corporation Method for detecting abnormality in a fabric treatment appliance having a steam generator
US8393183B2 (en) 2007-05-07 2013-03-12 Whirlpool Corporation Fabric treatment appliance control panel and associated steam operations
US8555676B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
US8555675B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
CN103604286A (zh) * 2013-06-04 2014-02-26 吴贤文 一种干燥机
GB2531851B (en) * 2014-10-30 2019-01-16 Steam E Holdings Ltd Steam or heated fluid dispensing apparatus
EP3305425A4 (fr) * 2016-07-29 2019-04-24 Beijing China Base Startrade Co., Ltd Nettoyeur de vapeur à batterie portable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4696074A (en) * 1984-11-21 1987-09-29 Alfredo Cavalli Multi-purpose household appliance particularly for cleaning floors, carpets, laid carpetings, and the like
US6031969A (en) * 1997-04-28 2000-02-29 Superba Omnidirectional portable appliance for steam cleaning hard or flexible surfaces

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4696074A (en) * 1984-11-21 1987-09-29 Alfredo Cavalli Multi-purpose household appliance particularly for cleaning floors, carpets, laid carpetings, and the like
US6031969A (en) * 1997-04-28 2000-02-29 Superba Omnidirectional portable appliance for steam cleaning hard or flexible surfaces

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007065790A3 (fr) * 2005-12-05 2008-09-25 Siemens Ag Tube de generateur de vapeur, procede de fabrication associe et generateur de vapeur en continu
EP1793164A1 (fr) * 2005-12-05 2007-06-06 Siemens Aktiengesellschaft Tube de générateur de vapeur, procédé de fabrication associé et chaudière à vapeur à passage unique
US8122856B2 (en) 2005-12-05 2012-02-28 Siemens Aktiengesellschaft Steam generator pipe, associated production method and continuous steam generator
AU2006324057B2 (en) * 2005-12-05 2010-11-18 Siemens Aktiengesellschaft Steam generator pipe, associated production method and continuous steam generator
US7730568B2 (en) 2006-06-09 2010-06-08 Whirlpool Corporation Removal of scale and sludge in a steam generator of a fabric treatment appliance
US7941885B2 (en) 2006-06-09 2011-05-17 Whirlpool Corporation Steam washing machine operation method having dry spin pre-wash
US7627920B2 (en) 2006-06-09 2009-12-08 Whirlpool Corporation Method of operating a washing machine using steam
US7765628B2 (en) 2006-06-09 2010-08-03 Whirlpool Corporation Steam washing machine operation method having a dual speed spin pre-wash
US7681418B2 (en) 2006-08-15 2010-03-23 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor
US7707859B2 (en) 2006-08-15 2010-05-04 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance
US7841219B2 (en) 2006-08-15 2010-11-30 Whirlpool Corporation Fabric treating appliance utilizing steam
US7886392B2 (en) 2006-08-15 2011-02-15 Whirlpool Corporation Method of sanitizing a fabric load with steam in a fabric treatment appliance
US7904981B2 (en) 2006-08-15 2011-03-15 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance
US7665332B2 (en) 2006-08-15 2010-02-23 Whirlpool Corporation Steam fabric treatment appliance with exhaust
US7913339B2 (en) 2006-08-15 2011-03-29 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor
US7591859B2 (en) 2006-08-15 2009-09-22 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a weight sensor
US7753009B2 (en) 2006-10-19 2010-07-13 Whirlpool Corporation Washer with bio prevention cycle
US11993886B2 (en) 2007-05-07 2024-05-28 Whirlpool Corporation Method for controlling a household washing machine
US10844533B2 (en) 2007-05-07 2020-11-24 Whirlpool Corporation Method for controlling a household washing machine
US8393183B2 (en) 2007-05-07 2013-03-12 Whirlpool Corporation Fabric treatment appliance control panel and associated steam operations
US7905119B2 (en) 2007-08-31 2011-03-15 Whirlpool Corporation Fabric treatment appliance with steam generator having a variable thermal output
US8037565B2 (en) 2007-08-31 2011-10-18 Whirlpool Corporation Method for detecting abnormality in a fabric treatment appliance having a steam generator
US7966683B2 (en) 2007-08-31 2011-06-28 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US7918109B2 (en) 2007-08-31 2011-04-05 Whirlpool Corporation Fabric Treatment appliance with steam generator having a variable thermal output
US8555676B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
US8555675B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
US7861343B2 (en) 2007-08-31 2011-01-04 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US7690062B2 (en) 2007-08-31 2010-04-06 Whirlpool Corporation Method for cleaning a steam generator
CN103604286A (zh) * 2013-06-04 2014-02-26 吴贤文 一种干燥机
GB2531851B (en) * 2014-10-30 2019-01-16 Steam E Holdings Ltd Steam or heated fluid dispensing apparatus
US10426311B2 (en) 2014-10-30 2019-10-01 Steam E Holdings Limited Liquid dispensing apparatus
EP3305425A4 (fr) * 2016-07-29 2019-04-24 Beijing China Base Startrade Co., Ltd Nettoyeur de vapeur à batterie portable

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