WO2020004255A1 - 容器殺菌用のキセノンフラッシュランプ - Google Patents

容器殺菌用のキセノンフラッシュランプ Download PDF

Info

Publication number
WO2020004255A1
WO2020004255A1 PCT/JP2019/024693 JP2019024693W WO2020004255A1 WO 2020004255 A1 WO2020004255 A1 WO 2020004255A1 JP 2019024693 W JP2019024693 W JP 2019024693W WO 2020004255 A1 WO2020004255 A1 WO 2020004255A1
Authority
WO
WIPO (PCT)
Prior art keywords
flash lamp
xenon flash
container
arc tube
shape
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/JP2019/024693
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
能章 黒田
航一 小林
亮 大河原
隆史 伊比
原澤　弘一
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.)
Iwasaki Electric Co Ltd
Original Assignee
Iwasaki Electric 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 Iwasaki Electric Co Ltd filed Critical Iwasaki Electric Co Ltd
Priority to CN201980043314.0A priority Critical patent/CN112335015B/zh
Publication of WO2020004255A1 publication Critical patent/WO2020004255A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes

Definitions

  • the present invention relates to a xenon flash lamp for sterilizing containers. More specifically, the present invention relates to a configuration of a xenon flash lamp used for sterilizing inner surfaces of containers such as deep trays, cups, and bottles used as containers for food and drinking water.
  • Xenon flash lamps are used for flash pulse sterilization.
  • Xenon flash lamps contain abundant ultraviolet light with a wavelength of 200 to 300 nm, which is effective for sterilization.
  • the flash sterilization process using a xenon flash lamp has a strong sterilizing effect, easy pulse control of light emission, no residue due to non-contact, and extremely short pulse irradiation for the object to be treated ( Containers and the like).
  • the flash pulse sterilization treatment has a drawback that only the portion that can be irradiated with light can be sterilized. Therefore, even when irradiating the xenon flash lamp from the outside of the container, light does not sufficiently reach a part of the inner surface of the container (eg, the bottom of the container or a bottle-shaped shoulder having a small opening), and sufficient sterilization is not performed. There is a risk.
  • Patent Documents 1 to 3 have a part of an arc tube inserted into a container.
  • Patent Documents 1 to 3 there is no description regarding the problem that occurs in the container insertion portion of the arc tube and the regulation of the glass strength for solving the problem.
  • an object of the present invention is to provide a xenon flash lamp having a U-shaped container insertion portion and having a lamp life equivalent to that of a conventional straight tube lamp.
  • a xenon flash lamp is a xenon flash lamp including an arc tube formed of a cylindrical glass tube, Part of the arc tube is bent into a U-shape that can be partially inserted into the container opening,
  • the inner thickness t1 [mm] of the U-shaped bent portion is in the range of 0.8 ⁇ t1 ⁇ 2.5
  • the thickness t2 [mm] of the U-shaped straight portion Us is in the range of 0.4 ⁇ t2 ⁇ 2.0.
  • the inner thickness t1 [mm] of the U-shaped bent portion and the thickness t2 [mm] of the straight portion Us may be in the range of 0.8 ⁇ t1, t2 ⁇ 2.0.
  • the arc tube may be bent in a T shape.
  • the arc tube may be bent in a Y-shape or a katakana "g" shape.
  • the length of the bent portion inserted into the container from the container opening may be determined according to the depth of the container.
  • the trigger line may be present along the outer peripheral surface of the arc tube.
  • a central portion of the arc tube may be formed in a U-shape.
  • the left end portion, the center portion, and the right end portion of the arc tube are connected so as to form a discharge space having the same outer diameter, both end portions are sealed, and one end portion is sealed.
  • An anode electrode may be arranged, and a cathode electrode may be arranged at the other end.
  • the U-shaped portion at the center is inserted deeply into the inside of the container through the opening, and the U-shaped portion is covered with a quartz jacket covered with a Teflon (registered trademark) film. It may be.
  • a xenon flash lamp having a U-shaped container insertion portion and having a lamp life equivalent to that of a conventional straight tube lamp.
  • FIG. 1 is a diagram illustrating a conventional xenon flash lamp.
  • FIG. 2 is a diagram illustrating a xenon flash lamp according to the present embodiment.
  • FIG. 3 is a diagram illustrating an example of a container to be sterilized.
  • FIG. 4 is a diagram illustrating a state in which the inner surface of the container is being sterilized using the xenon flash lamp according to the present embodiment.
  • FIG. 5 is a view simulating a photograph of a devitrification and a leak hole generated at a U-shaped bent portion of the arc tube.
  • FIG. 5 (A) is a view mimicking an X-ray photograph
  • FIG. 5 (B) is a view mimicking a photograph of a lamp appearance after lighting
  • FIG. FIG. FIG. 6 is a diagram illustrating a lighting circuit of the xenon flash lamp according to the present embodiment.
  • FIGS. 7A and 7B are schematic diagrams showing a modification of the xenon flash lamp according
  • a feature of the xenon flash lamp according to the present embodiment lies in the shape of the lamp as compared with the conventional xenon flash lamp. Therefore, in order to facilitate understanding of the xenon flash lamp according to the present embodiment, a brief description will first be given of a conventional xenon flash lamp.
  • FIG. 1 is a diagram illustrating a conventional xenon flash lamp.
  • the conventional xenon flash lamp 110 has a structure in which an anode electrode 104a and a cathode electrode 104b are arranged at both ends of an arc tube 102 in which xenon of a rare gas is sealed.
  • the arc tube 102 is made of quartz glass having a high ultraviolet transmittance, and is formed into a straight cylindrical shape having a fixed thickness with both ends sealed.
  • a trigger line (also referred to as “starting auxiliary electrode”) 108 is arranged along the outer peripheral surface of the arc tube 102.
  • the trigger wire 108 includes a plurality of ring wires 108-1 each surrounding the arc tube while being in close contact with the outer peripheral surface of the arc tube 102, and a plurality of ring wires 108 extending along the axis of the arc tube. -1 for connecting to the connecting wire 108-2.
  • the anode electrode 104a is formed of a tungsten rod having an anode large-diameter portion 104a-2 formed by processing the tip (the arc tube side) of the electrode lead rod 104a-1 into a cylindrical shape.
  • the cathode-side electrode 104b is formed into a columnar shape at the tip (the arc tube side) of the electrode lead rod 104b-1 to form a cathode large-diameter portion 104b-2.
  • a columnar sintered body (also referred to as an “emitter”) 104b-3 made of a substance is formed by a tungsten rod to which is fixed.
  • the ring wire 108-1 is positioned around the distal end of the emitter 104b-3.
  • the opposite sides of the electrode lead bars 104a-1 and 104b-1 from the arc tube are connected to lead wires 103a and 103b, respectively.
  • FIG. 2 is a diagram illustrating the xenon flash lamp 10a according to the present embodiment.
  • a trigger line is not shown, but actually the trigger line exists along the outer peripheral surface of the arc tube 2 as in FIG.
  • the following description focuses on differences from the conventional xenon flash lamp 110 shown in FIG.
  • the anode electrode 4a and the cathode electrode 4b are arranged opposite to each other at both ends of the arc tube 2, but the central portion 2b of the arc tube 2 is U-shaped. In that it is formed in The U-shaped portion 2b-1 is a portion to be inserted into the container from the opening.
  • the left end portion 2a, the center portion 2b, and the right end portion 2c of the arc tube 2 are connected to form a discharge space having the same outer diameter, and both ends are sealed.
  • an anode large-diameter portion 4a-2 and an electrode lead rod 4a-1 are arranged at a left end portion 2a of the arc tube 2, and an emitter portion 4b is arranged at an opposite right end portion 2c.
  • a cathode large diameter portion 4b-2 and an electrode lead rod 4b-1 are arranged.
  • FIG. 3 is a diagram illustrating an example of a container to be sterilized.
  • FIG. 4 is a view for explaining a situation in which the inner surface of the container 12 is sterilized using the xenon flash lamp 10a according to the present embodiment.
  • the U-shaped portion 2b-1 of the central portion 2b is inserted deep into the inside from the container opening 12a.
  • the U-shaped portion 2b-1 of the central portion 2b is covered with a quartz jacket 6 covered with a Teflon (registered trademark) film.
  • Teflon registered trademark
  • the first feature of the xenon flash lamp 10a is that the U-shaped portion 2b-1 of the central portion 2b is inserted into the container 12 from the opening 12a.
  • the entire inner surface of the container can be directly irradiated with light to enable sterilization.
  • the enclosed right end portion 2c is arranged outside the container 12.
  • FIG. 5 is a view simulating a photograph of a devitrification and a leak hole generated at a U-shaped bent portion of the arc tube.
  • FIG. 5 (A) is a view mimicking an X-ray photograph
  • FIG. 5 (B) is a view mimicking a photograph of a lamp appearance after lighting
  • FIG. 5 (C) is a view mimicking a photograph of a devitrification and leak hole.
  • the present inventors have investigated the location of the occurrence of devitrification and leak holes, and found that they occur at a U-shaped bent portion.
  • the glass strength in this part seems to be relatively weak.
  • the glass thickness of the U-shaped portion 2b-1 was controlled.
  • Several prototypes having different glass thicknesses were prepared, and the optimum range of the inner thickness t2 of the bent portion Ub and the thickness t2 of the straight portion Us were determined.
  • Table 1 shows the experimental results.
  • FIG. 5 is a diagram illustrating an example of the lighting circuit 30 of the xenon flash lamp shown in FIG.
  • reference numeral 10a is a lamp
  • reference numeral 8 is a trigger line.
  • the lighting circuit 30 includes a commercial AC power supply 22, a charging high-voltage power supply circuit 24 for boosting and rectifying the commercial AC power supply 22, a charging / discharging capacitor 26 for storing the output, and a waveform adjusting coil 28. Power is being supplied. Further, an external trigger generating circuit 32 for starting and a pulse boosting transformer 34 which boosts a trigger pulse and sends it to the trigger line 8 are provided.
  • the xenon flash lamp according to the present embodiment has the following advantages and features.
  • (1) The central portion 2b of the arc tube of the xenon flash lamp is formed in the U-shaped portion 2b-1, and the inner thickness t1 [mm] of the bent portion is in the range of 0.8 ⁇ t1 ⁇ 2.5 and the U-shape.
  • the thickness t2 [mm] of the straight portion Us within the range of 0.4 ⁇ t2 ⁇ 2.0, a sufficient amount of light can be ensured without devitrification and leakage.
  • t1 and t2 are not individually controlled. In this case, by setting the range of 0.8 ⁇ t1 and t2 ⁇ 2.0, a sufficient amount of light can be ensured without devitrification or leakage.
  • the length of the portion bent into a shape that can be inserted into the inside from the container opening can be determined according to the depth of the container, and the inner peripheral surface and the bottom of the container can be irradiated with ultraviolet rays. I can do it.
  • FIGS. 7A and 7B are schematic diagrams showing a modification of the xenon flash lamp according to the present embodiment.
  • a katakana "g" in which one of both end portions 2a and 2c shown in FIG. 7 (B) extends horizontally to the arc tube center 2b and the other extends vertically.
  • a character shape, a combination thereof (one is an oblique direction, the other is a horizontal or vertical direction), and the like are conceivable.
  • 2 arc tube, 2a: left end portion, 2b: center portion and center portion of arc tube, 2b-1: U-shaped portion, 2c: right end portion, 4a: anode electrode, 4a-1: electrode lead rod, 4a-2 : Large diameter part of anode, 4bb: Cathode electrode, 4b-1: Electrode lead rod, 4b-2: Large diameter part of cathode, 4b-3: Emitter, 6: Quartz jacket, 10a, 10b, 10c: Xenon flash lamp, 12 : Container, 12a: container opening, opening, 22: commercial AC power supply, 24: high voltage power supply circuit for charging, 26: capacitor for charging and discharging, 28: coil for adjusting waveform, 30: lighting circuit, 32: external for starting Trigger generation circuit, 34: pulse booster transformer, 102: arc tube, 103a, 103b: lead wire, 104a: anode electrode, 104a-1: electrode lead rod, 104a: anode large diameter portion, 1 4b: Cath

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
PCT/JP2019/024693 2018-06-26 2019-06-21 容器殺菌用のキセノンフラッシュランプ Ceased WO2020004255A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980043314.0A CN112335015B (zh) 2018-06-26 2019-06-21 容器杀菌用的氙闪光灯

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018121323A JP6800433B2 (ja) 2018-06-26 2018-06-26 容器殺菌用のキセノンフラッシュランプ
JP2018-121323 2018-06-26

Publications (1)

Publication Number Publication Date
WO2020004255A1 true WO2020004255A1 (ja) 2020-01-02

Family

ID=68986847

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/024693 Ceased WO2020004255A1 (ja) 2018-06-26 2019-06-21 容器殺菌用のキセノンフラッシュランプ

Country Status (3)

Country Link
JP (1) JP6800433B2 (enExample)
CN (1) CN112335015B (enExample)
WO (1) WO2020004255A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112867673B (zh) * 2018-09-28 2023-06-30 岩崎电气株式会社 容器杀菌用的氙闪光灯照射装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60116359A (ja) * 1983-11-30 1985-06-22 明治乳業株式会社 閃光発光殺菌法
JPH0398248A (ja) * 1989-09-12 1991-04-23 Toshiba Lighting & Technol Corp セラミック放電灯
JP2001247108A (ja) * 2000-03-08 2001-09-11 Shokuhin Sangyo Denshi Riyo Gijutsu Kenkyu Kumiai 容器殺菌方法及び装置
JP2008130509A (ja) * 2006-11-24 2008-06-05 Hoshin Kagaku Sangyosho:Kk 紫外線ランプ及び紫外線照射装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0415398A3 (en) * 1989-08-31 1991-08-07 Toshiba Lighting & Technology Corporation Ceramic electric-discharge lamp incorporating arc tube having at least two curved regions
CN2634649Y (zh) * 2003-07-18 2004-08-18 启东计算机总厂有限公司 石英紫外线杀菌灯
JP4280866B2 (ja) * 2004-02-02 2009-06-17 岩崎電気株式会社 フラッシュランプとその電極ユニット
US20060170361A1 (en) * 2005-01-31 2006-08-03 Osram Sylvania Inc. Single-ended Arc Discharge Vessel with a Divider Wall
CN103943455B (zh) * 2014-03-31 2016-08-17 常州市武进厚余灯具厂 一种可直接放入液体中的脉冲闪光灯及其用途
CN105079833B (zh) * 2015-09-01 2017-11-17 西安富康空气净化设备工程有限公司 一种高能脉冲紫外空间消毒装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60116359A (ja) * 1983-11-30 1985-06-22 明治乳業株式会社 閃光発光殺菌法
JPH0398248A (ja) * 1989-09-12 1991-04-23 Toshiba Lighting & Technol Corp セラミック放電灯
JP2001247108A (ja) * 2000-03-08 2001-09-11 Shokuhin Sangyo Denshi Riyo Gijutsu Kenkyu Kumiai 容器殺菌方法及び装置
JP2008130509A (ja) * 2006-11-24 2008-06-05 Hoshin Kagaku Sangyosho:Kk 紫外線ランプ及び紫外線照射装置

Also Published As

Publication number Publication date
CN112335015B (zh) 2022-03-29
CN112335015A (zh) 2021-02-05
JP2020004550A (ja) 2020-01-09
JP6800433B2 (ja) 2020-12-16

Similar Documents

Publication Publication Date Title
WO2013081054A1 (ja) エキシマランプ
JP2017004702A (ja) エキシマランプ
CN100472705C (zh) 准分子灯泡
JP5795043B2 (ja) 殺菌装置
WO2020004255A1 (ja) 容器殺菌用のキセノンフラッシュランプ
JP5741603B2 (ja) エキシマランプ
JP7296057B2 (ja) 容器殺菌用のキセノンフラッシュランプ照射装置
JP6813811B2 (ja) 容器殺菌用のキセノンフラッシュランプ照射装置
JP6706435B2 (ja) 容器殺菌用のキセノンフラッシュランプ
JP5517107B2 (ja) アマルガム型低圧水銀ランプ及びそのランプ点灯電源装置
CN1998063A (zh) 荧光灯和用于制造荧光灯的方法
JP2011009213A (ja) 放電室を有する誘電体バリア放電ランプ
JP4280866B2 (ja) フラッシュランプとその電極ユニット
CN101436515B (zh) 金属卤化物灯及其uv泡结构
JP2001185088A (ja) 閃光放電ランプ、およびその発光装置
JP2005056638A (ja) フラッシュランプ
JP5640838B2 (ja) 放電ランプ装置
JP7602726B2 (ja) 飲食品容器の殺菌処理方法及び殺菌装置
JP6107789B2 (ja) エキシマ放電ランプ
JP6869081B2 (ja) 紫外線照射装置及びこれを用いた水殺菌装置
TWI414208B (zh) Mercury - free fluorescent tubes and their driving methods
JP2001340848A (ja) 流体の殺菌装置
CN110339378A (zh) 强脉冲紫外辐照系统
JP2012064382A (ja) 外部電極型ランプ及びこれを用いた照射装置
JP2006026253A (ja) 殺菌装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19826700

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19826700

Country of ref document: EP

Kind code of ref document: A1