[go: up one dir, main page]

US20060236957A1 - Superheated steam producing device - Google Patents

Superheated steam producing device Download PDF

Info

Publication number
US20060236957A1
US20060236957A1 US10/543,788 US54378804A US2006236957A1 US 20060236957 A1 US20060236957 A1 US 20060236957A1 US 54378804 A US54378804 A US 54378804A US 2006236957 A1 US2006236957 A1 US 2006236957A1
Authority
US
United States
Prior art keywords
cylindrical housing
overheated steam
heat
water
steam generator
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.)
Abandoned
Application number
US10/543,788
Other languages
English (en)
Inventor
Toshio Aoshima
Hiromizu Tezuka
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.)
IZUMI INFORMATION CO Ltd
Original Assignee
IZUMI INFORMATION CO 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 IZUMI INFORMATION CO Ltd filed Critical IZUMI INFORMATION CO Ltd
Assigned to IZUMI INFORMATION CO., LTD. reassignment IZUMI INFORMATION CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AOSHIMA, TOSHIO, TEZUKA, HIROMIZU
Publication of US20060236957A1 publication Critical patent/US20060236957A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/10—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
    • B24B49/105—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means using eddy currents
    • 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
    • F22B1/281—Methods of steam generation characterised by form of heating method in boilers heated electrically other than by electrical resistances or electrodes
    • 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
    • F22B1/287—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in sprays or in films

Definitions

  • the present invention relates generally to a technology for generation of overheated steam, and more particularly to the provision of a technology for facilitated generation of large amounts of overheated steam.
  • JP(A)8-135903 One known technology for generation of overheated steam, for instance, is set forth in JP(A)8-135903. While an AC current conducts through a coil to generate heat from a metal body by virtue of electromagnetic induction, water vapor is in contact with the surface of that heat-generation body, passing around it, thereby generating water vapor of 100° C. or higher (overheated water vapor). With other known technology as shown typically in JP(A)9-241734, water is evaporated in a steam boiler and the resulting water vapor is heated to high temperatures by combustion of fuel.
  • the primary object of the invention is to provide a solution to the aforesaid problems of the prior art.
  • the invention is embodied in the form of the overheated steam generator and the process of generating high-pressure overheated steam as given below.
  • An overheated steam generator characterized by comprising a cylindrical housing of a heat-resistant material having a water injection inlet port at one end and an overheated steam injection outlet port at an opposite end, an exciting coil wound around an outer periphery of said cylindrical housing, and an air-permeable assembly to be heated, which is housed in said cylindrical housing and formed of an electrically conductive material.
  • An overheated steam generator characterized by comprising a cylindrical housing of a heat-resistant material having a water injection inlet port and a water vapor inlet port at one end and an overheated steam injection outlet port at an opposite end, an exciting coil wound around an outer periphery of said cylindrical housing, and an air-permeable assembly to be heated, which is housed in said cylindrical housing and formed of an electrically conductive material.
  • An overheated steam generator characterized by comprising a cylindrical housing of a heat-resistant material, in which water is injected through one end and out of which overheated steam is injected through an opposite end, and electromagnetic induction heating means including an air-permeable heat-generation unit of an electrically conductive material which generates heat by electromagnetic induction for heating water charged in said cylindrical housing.
  • An overheated steam generator characterized by comprising a cylindrical housing of a heat-resistant material having a water injection inlet port at one end and an overheated steam injection outlet port at an opposite end, a refractory that is applied over an outer periphery of said cylindrical housing and formed of a heat-resistant material, an exciting coil wound around an outer periphery of said refractory, and an air-permeable assembly to be heated, which is housed in said cylindrical housing and formed of an electrically conductive material.
  • overheated steam generator according to any one of (1) to (9) above, characterized in that overheated steam injected out of the outlet port at the opposite end of the cylindrical housing of a heat-resistant material has a temperature of 120 to 800° C.
  • thermoelectric generator according to any one of (1) to (10) above, characterized in that the heat-generation unit of an electrically conductive material housed in the cylindrical housing comprises elements formed of one or more materials selected from the group consisting of a rod material, a wire material, sheet material, a honeycomb material, a network material, a spherical material, a hollow spherical material and an amorphous bulk material.
  • An overheated steam generation process characterized by injecting water in a cylindrical housing of a heat-resistant material from one end, wherein said cylindrical housing houses therein an air-permeable assembly that is formed of an electrically conductive material and is to be heated, and then heating said air-permeable assembly housed in said cylindrical housing by means of high-frequency induction, thereby injecting high-temperature overheated steam out of an opposite end of the cylindrical housing.
  • An overheated steam generation process characterized by injecting water and water vapor in a cylindrical housing of a heat-resistant material from one end, wherein said cylindrical housing houses therein an air-permeable assembly that is formed of an electrically conductive material and is to be heated, and then heating said air-permeable assembly housed in said cylindrical housing by means of high-frequency induction, thereby injecting high-temperature overheated steam out of an opposite other end of the cylindrical housing.
  • FIG. 1 is illustrative in schematic of one embodiment of the overheated steam generator according to the invention.
  • FIGS. 2 ( a ), 2 ( b ), 2 ( c ) and 2 ( d ) are illustrative of four shapes of an element forming a part of the air-permeable assembly to be heated, which is used in the invention.
  • V 1 , V 2 on-off valves
  • V 3 , V 4 check valves.
  • FIG. 1 is illustrative in schematic of one embodiment of the overheated steam generator according to the invention
  • FIGS. 2 ( a ), 2 ( b ), 2 ( c ) and 2 ( d ) are illustrative of four embodiments of an element forming a part of the air-permeable assembly to be heated.
  • V 1 , V 2 on-off valves
  • V 3 , V 4 check valves.
  • one end la of the cylindrical housing 1 of an electrically conductive material is provided with the inlet nozzle 2 of injection of water and the other end 1 b with the port 3 out of which overheated steam is injected.
  • the cylindrical housing 1 is provided over its outer periphery with the covering material 6 formed of a castable refractory ceramic material for the purpose of heat insulation.
  • the exciting coil 5 for conduction of a high-frequency current is wound around the outer periphery of the ceramic covering material 6 , and connected with a high-frequency current power source, not shown.
  • the cylindrical housing 1 receives the air-permeable assembly 4 that is formed of an electrically conductive material and is to be heated, wherein, as shown in FIG. 1 , the air-permeable assembly 4 is made up of stainless steel balls, one of which is shown in FIG. 2 ( a ).
  • the assembly 4 is heated by electromagnetic induction by the exciting coil 5 to generate heat, so that water or water vapor passing through it can be heated to high temperatures into overheated steam HV that is injected out of the outlet port 3 at the other end 1 b .
  • Reference numeral 40 stands for a punching metal sheet.
  • the water injection inlet nozzle 2 at the one end 1 a of the cylindrical housing 1 is connected to a water feed pump P via the conduit 7 , and to the pressurized water vapor generation unit 8 as well.
  • the on-off valve V 2 provided on the way of a conduit from the pressurized water vapor generation unit 8 remains closed and the on-off valve V 1 is opened.
  • the on-off valve V 1 is opened.
  • V 3 and V 4 are the check valves.
  • water, or water and water vapor are injected into the cylindrical housing 1 from its one end 1 a , in which the air-permeable assembly 4 to be heated, formed of an electrically conductive material, is housed. Then, water or water vapor makes its way through the air-permeable assembly 4 to be heated, housed in the cylindrical housing 1 . In the meantime, the air-permeable assembly 4 is heated with heat generated by electromagnetic induction by the exiting coil 5 , so that the water or water vapor passing through it is heated to high temperature into overheated steam HV that is injected out of the outlet port 3 at the other end 1 b of the cylindrical housing 1 .
  • reference numeral 40 is the punching metal sheet that is provided for prevention of the elements in the air-permeable assembly 4 housed in the cylindrical housing 1 from coming out.
  • Reference numeral 41 is the keeper formed of a punching metal sheet that has preferably high thermal conductivity and good heat resistance (e.g., a copper or silver sheet).
  • the keeper 41 formed of copper has a vertically double-sheet structure, in which sheets 41 a and 41 b are joined together via a bridging sheet 41 c .
  • the sheet 41 b has a long leg 41 d that extends between the elements of the air-permeable assembly 4 .
  • the high heat of the air-permeable assembly 4 always conducts to the long leg 41 d to maintain 41 b , 41 c and 41 a at so high temperature that the water injected from the inlet nozzle 2 can be immediately and continuously vaporized without undergoing temperature drops.
  • the air-permeable assembly 4 to be heated housed in the cylindrical housing 1 , is heated by high-frequency induction with water injected into it, it allows overheated water vapor to be generated in an amount of about a few tens to thousand times as much as that generated by introduction of water vapor into the cylindrical housing. Accordingly, high-pressure overheated water vapor can be easily injected out of the other end of the cylindrical housing.
  • 22.4-liter water vapor is 18 grams, but 18-ml water is 18 grams.
  • 22-ml water is 18 grams.
  • pressurized water vapor is obtained in an amount of about 1,200 times as much as that obtained by the introduction and heating of water vapor.
  • the resulting pressurized water vapor is brought up to a very high pressure.
  • electrically conductive material of the air-permeable assembly 4 use could be made of metals of strong magnetism such as iron and metals of weak magnetism such as stainless steels SUS430 and SUS403, nickel and titanium as well as carbon ceramics such as carbon and silicon carbide.
  • the magnetic metal material, especially the soft magnetic material is preferable for the electrically conductive material of the air-permeable assembly 4 to be heated.
  • a requirement for the air-permeable assembly 4 to be heated is that vapors pass smoothly through it in a tank, and it could be made up of a rod material, a wire material, a sheet material, a honeycomb material, a network material, a spherical material, a hollow spherical material, an amorphous bulk material or the like. These materials could be provided with through-holes.
  • Overheated water vapor was generated, using the overheated steam generator of FIG. 1 , in which the air-permeable assembly 4 to be heated was comprised of hollow sphere elements, each having some openings as shown in FIG. 2 ( b ).
  • water was injected into the cylindrical housing 1 from the inlet nozzle 2 located at its one end la at an injection pressure of 4 to 6 kg/cm 2 and in an amount of 6 to 10 kg/h.
  • the pressurized water vapor generation unit 8 was not used; the on-off valve V 2 remained closed and the on-off valve V 1 was set at an open position.
  • the cylindrical housing 1 had an inside diameter of 20 cm and a length of 40 cm.
  • the assembly to be heated was comprised of elements made of a ferritic stainless steel (SUS430) that was a magnetic metal material (carbon steel in a preferable embodiment), and the cylindrical housing 1 was made of an austenitic stainless steel (SUS304).
  • a high-frequency current having a frequency of 20 kHz was fed to the exciting coil 5 at 25 to 30 kw/h.
  • water or water and water vapor are injected into a cylindrical housing from its one end, wherein the cylindrical housing receives an air-permeable assembly of an electrically conductive material to be heated, and the air-permeable assembly received in the cylindrical housing is heated by high-frequency induction, so that overheated water vapor in an amount of about a few tens to thousand times as much as that obtained by heating water vapor introduced in the cylindrical housing and, hence, at a high pressure, can be easily injected out of the other end.
  • the high-temperature overheated water vapor obtained in the invention could be utilized for disinfection of cereals such as wheat, buckwheat and beans and fruits and vegetables such as strawberry and tomato or roasting of tee leaves and coffee beans, purification of contaminated soils by gasification and isolation of volatile harmful substances (e.g., organic chlorine base harmful products) from them, or the like.
  • cereals such as wheat, buckwheat and beans and fruits and vegetables
  • fruits and vegetables such as strawberry and tomato or roasting of tee leaves and coffee beans
  • purification of contaminated soils by gasification and isolation of volatile harmful substances (e.g., organic chlorine base harmful products) from them, or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
US10/543,788 2003-01-28 2004-01-28 Superheated steam producing device Abandoned US20060236957A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003019574 2003-01-28
JP2003-019574 2003-01-28
PCT/JP2004/000738 WO2004068033A1 (fr) 2003-01-28 2004-01-28 Dispositif de production de vapeur surchauffee

Publications (1)

Publication Number Publication Date
US20060236957A1 true US20060236957A1 (en) 2006-10-26

Family

ID=32820611

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/543,788 Abandoned US20060236957A1 (en) 2003-01-28 2004-01-28 Superheated steam producing device

Country Status (5)

Country Link
US (1) US20060236957A1 (fr)
EP (1) EP1591719A4 (fr)
JP (2) JPWO2004068033A1 (fr)
CN (1) CN1745279A (fr)
WO (1) WO2004068033A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160205727A1 (en) * 2014-11-26 2016-07-14 Numerical Design, Inc. Microfluidic-based apparatus and method vaporization of liquids using magnetic induction

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4852289B2 (ja) * 2005-10-05 2012-01-11 財団法人ファインセラミックスセンター 過熱水蒸気生成装置及び過熱水蒸気利用装置
KR100644867B1 (ko) * 2005-12-14 2006-11-10 재영솔루텍 주식회사 과열증기 발생 장치
CA2733163C (fr) 2008-08-08 2013-11-19 Chokichi Sato Generateur de plasma a vapeur d'eau, methode de sterilisation et de desinfection, et methode de traitement antioxydant au moyen de plasma a vapeur d'eau
JP5654999B2 (ja) * 2009-10-07 2015-01-14 日本碍子株式会社 ハニカム構造体
CN101881480A (zh) * 2010-07-16 2010-11-10 辛海云 管道电磁加热炉
AP2013007277A0 (en) * 2011-04-30 2013-11-30 New Reclamation Group Pty Ltd An electrical induction heating assembly
CN102785302A (zh) * 2012-08-23 2012-11-21 段伟 一种过热蒸汽塑料回收处理装置
CN102829464A (zh) * 2012-09-27 2012-12-19 段伟 过热蒸汽发生器
FR3037618B1 (fr) * 2015-06-18 2017-07-07 Snecma Systeme d'alimentation en ergol d'un allumeur
KR101757756B1 (ko) 2016-11-25 2017-07-17 유동연 전극판과 트랜스를 이용한 전자기 유도가열 보일러
DE102017125666A1 (de) * 2017-11-02 2019-05-02 Elwema Automotive Gmbh Vorrichtung und Verfahren zum Reinigen von Werkstücken mittels eines Dampfstrahls und Dampferzeuger hierfür
JP7678991B2 (ja) 2021-07-07 2025-05-19 Ａｓｔｒａ Ｆｏｏｄ Ｐｌａｎ株式会社 過熱水蒸気発生装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6734405B2 (en) * 2002-06-12 2004-05-11 Steris Inc. Vaporizer using electrical induction to produce heat

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52109001A (en) * 1976-03-09 1977-09-12 Masahiko Kiyotani Furnace water pipe boiler
WO1998029685A1 (fr) * 1996-12-26 1998-07-09 Kabushiki Kaisha Seta Giken Generateur de vapeur surchauffee
JP3684758B2 (ja) * 1997-06-06 2005-08-17 松下電器産業株式会社 蒸気発生装置
JP3894649B2 (ja) * 1998-02-09 2007-03-22 大旺建設株式会社 難分解物質の分解処理方法
JP4236369B2 (ja) * 2000-07-04 2009-03-11 株式会社かんでんエンジニアリング 過熱蒸気発生装置と該装置を利用した加熱装置、炭化乾留装置、過熱蒸気噴射装置及び調理器

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6734405B2 (en) * 2002-06-12 2004-05-11 Steris Inc. Vaporizer using electrical induction to produce heat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160205727A1 (en) * 2014-11-26 2016-07-14 Numerical Design, Inc. Microfluidic-based apparatus and method vaporization of liquids using magnetic induction

Also Published As

Publication number Publication date
EP1591719A1 (fr) 2005-11-02
JP2004233040A (ja) 2004-08-19
EP1591719A4 (fr) 2006-04-26
CN1745279A (zh) 2006-03-08
WO2004068033A1 (fr) 2004-08-12
JPWO2004068033A1 (ja) 2006-05-18

Similar Documents

Publication Publication Date Title
US20060236957A1 (en) Superheated steam producing device
JP5240987B2 (ja) 過熱蒸気発生容器、過熱蒸気発生装置及び過熱蒸気発生方法
US7115845B2 (en) Superheated steam generator
US6967315B2 (en) Method for vaporizing a fluid using an electromagnetically responsive heating apparatus
JPH04230987A (ja) 電磁誘導加熱器
US4267976A (en) Apparatus for vaporizing and atomizing liquids
CN102017812A (zh) 混合等离子体生成设备和方法、以及利用混合等离子体的电加热烹饪设备
US20070145038A1 (en) Convective heating system for industrial applications
CA2462067A1 (fr) Chalumeau a plasma par induction multi-bobine pour alimentation de puissance integree
JP4236369B2 (ja) 過熱蒸気発生装置と該装置を利用した加熱装置、炭化乾留装置、過熱蒸気噴射装置及び調理器
US20110089163A1 (en) Activated-steam-generating apparatus
JP2003021303A (ja) 過熱蒸気発生装置
US9629936B2 (en) Method and device for generating steam and gaseous hydrogen peroxide
US10088149B2 (en) One atmosphere boiler instant superheated steam apparatus and method
KR102380593B1 (ko) 자기 유도 방식의 기화 장치 및 그에 의한 가습기
JP2002106801A (ja) 蒸気発生装置
JP2010214364A (ja) 加熱装置、産業廃棄物処理方法及び水の淡水化方法
JPH11108301A (ja) 食品加工装置及び食品加工方法
JP2013188402A (ja) 殺菌剤噴霧装置
US9261273B2 (en) Pressurized point-of-use superheated steam generation apparatus and method
JP2003014203A (ja) 過熱蒸気発生装置
WO2014039296A1 (fr) Appareil à vapeur surchauffée instantanée de chaudière à une atmosphère et procédé associé
JP4399582B2 (ja) ガス加熱装置
KR101178975B1 (ko) 과열증기 발생장치
JP7446572B2 (ja) 加熱処理装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: IZUMI INFORMATION CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AOSHIMA, TOSHIO;TEZUKA, HIROMIZU;REEL/FRAME:017265/0573

Effective date: 20050706

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION