EP2014365A2 - Armoire de biosécurité isolée par rideau d'air - Google Patents

Armoire de biosécurité isolée par rideau d'air Download PDF

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Publication number
EP2014365A2
EP2014365A2 EP07123726A EP07123726A EP2014365A2 EP 2014365 A2 EP2014365 A2 EP 2014365A2 EP 07123726 A EP07123726 A EP 07123726A EP 07123726 A EP07123726 A EP 07123726A EP 2014365 A2 EP2014365 A2 EP 2014365A2
Authority
EP
European Patent Office
Prior art keywords
air
door
bsc
isolated
main body
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.)
Granted
Application number
EP07123726A
Other languages
German (de)
English (en)
Other versions
EP2014365A3 (fr
EP2014365B1 (fr
Inventor
Rong-Fung Hung
Tung-Sheng c/o Institute of Occupational Safety and Health Shih
Cheng-Ping c/o Institute of Occupational Safety and Health Chang
Chun-Wan c/o Institute of Occupational Safety and Health Chen
Chen-Hsiung Hung
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.)
Institute of Occupational Safety and Health Council of Labor Affairs
Original Assignee
Institute of Occupational Safety and Health Council of Labor Affairs
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 Institute of Occupational Safety and Health Council of Labor Affairs filed Critical Institute of Occupational Safety and Health Council of Labor Affairs
Publication of EP2014365A2 publication Critical patent/EP2014365A2/fr
Publication of EP2014365A3 publication Critical patent/EP2014365A3/fr
Application granted granted Critical
Publication of EP2014365B1 publication Critical patent/EP2014365B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L1/00—Enclosures; Chambers
    • B01L1/50—Enclosures; Chambers for storing hazardous materials in the laboratory, e.g. cupboards, waste containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F3/163—Clean air work stations, i.e. selected areas within a space which filtered air is passed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains

Definitions

  • the present invention relates to a biosafety cabinet (BSC); more particularly, relates to forming an air-isolator at an opening of a door to isolate air flows inside and outside the BSC, to prevent circulations in the BSC, and to prevent contamination leakage from the BSC.
  • BSC biosafety cabinet
  • BSC is used to protect germs in the cabinet and to prevent contamination inside from leaking out.
  • BSC is used to protect germs in the cabinet and to protect the operator, events keep on happening that operators died because of contamination. It shows that BSC still has some problem.
  • problems (1) not obtaining the most proper design: They include insufficient suction amount, improper suction slot position, improper air supplier position, uneven flow rate at front opening, bad opening shape design, etc.; and (2) not operating in a best state: They include that the contamination is too much, the opening is too wide opened, that the suction amount is not well adjusted following an actual situation, etc.
  • the BSCs can be divided into four categories: A1, A2, B1 and B2.
  • waste gases are totally exhausted without recycling; all gases are flowed through HEPA filter; and the gases are exhausted to the exhausting system of a building.
  • the BSC has a HEPA filter on top to supply air by an air blower.
  • outer air is not allowed to enter the cabinet directly; and environments inside and outside the cabinet are separated.
  • the air is exhausted by an air-suction device at a rate of 0.57 cubic meters per second for obtaining a negative pressure in the cabinet.
  • a sash may be opened to supply air into the BSC from outside.
  • the contamination in the BSC may leak out at the opening by the interference of the outside flow and/or the action of the BSC door. Therefore, traditional BSC is weak in defending interferences of side flow and door operation. Hence, the prior art does not fulfill all users' requests on actual use.
  • the main purpose of the present invention is to prevent contamination leakage from the biosafety cabinet and to prevent circulations in the biosafety cabinet.
  • the present invention provides a cabinet according to claim 1.
  • Advantageous embodiments are laid down in further claims.
  • An air curtain-isolated BSC comprises a main body, a door, an air blower, a suction box, a gas sucker, a plurality of cross flow fans and a high efficiency particulate air (HEPA) filter, where the main body has a space to contain a harmful gas to be exhausted and has an open space at a side.
  • the door is movably assembled to the main body at the side to control an opening and has an air-pushing veil.
  • the air blower is connected to an air inlet on top of the main body to supply fresh air.
  • the suction box is set beneath the main body and has a suction slot at an edge of the main body corresponding to the air-pushing veil of the door.
  • the gas sucker is set at an exit of the suction box for exhausting the harmful gas.
  • the HEPA filter is set on top of the main body to supply air by the air blower and air flows inside and outside the BSC are isolated to prevent operators from damages owing to leakage of the contamination in the BSC, and to prevent contamination outside of the BSC from entering into the BSC to pollute a product in the BSC. Accordingly, a novel air curtain-isolated BSC is obtained.
  • FIG.1 to FIG.3 show a perspective view and a side view of an embodiment according to the present invention; and a view showing the embodiment with coordinated devices.
  • the present invention is an air curtain-isolated biosafety cabinet (BSC), comprising a main body 11, a door 12, an air blower 13, a suction box 14, a gas sucker 15, a plurality of cross flow fans 20 and a high efficiency particulate air (HEPA) filter 16, where air flows inside and outside the BSC are isolated with no air circulation and dissipation and thus contamination in the cabinet is well prevented from leakage.
  • BSC air curtain-isolated biosafety cabinet
  • the main body 11 has a space to contain a harmful gas to be exhausted; and has an open space at a side.
  • the door 12 is movably assembled to the main body 11 at a side.
  • the door 12 has a handle 121 to move the door for controlling an opening 125.
  • a plurality of cross flow fans 20 is set on the door 12 and the door 12 is a telescopic sliding door to change opening size of the door 12.
  • the door 12 blows air by setting a plurality of cross flow fans controlled by a cross-flow fan controller 2. Air is blown from upper side of the door 12 to a section of honeycombs 123. And then the air is continuously blown through a stabilizing passage 124 to dissipate turbulence energy to reach an opening 125 of the door 12.
  • the air blower 13 is controlled by an inverter 17a and is connected with the air inlet 111 on the top of the HEPA filter 16 to supply fresh air.
  • the suction box 14 is set beneath the main body 11; and has a suction slot 141 located at an edge of the main body 11 corresponding to the air-pushing veil 122 of the door 12.
  • the gas sucker 15 is set at an exit of the suction box 14 to suck the harmful gas.
  • Another inverter 17b is used to change a rotation rate of the gas sucker 15 to control an average blowing rate of the air blower 13 and an average sectional sucking rate of the suction slot 141.
  • a Venturi flow meter 18 is set between an exit of the gas sucker 15 and an exit of the suction box 14 to measure an air-blowing rate; and obtains a pressure difference between them with a coordination of a pressure transducer 19.
  • the HEPA filter 16 is deposed on top of the main body 11 to supply air in an average rate through the air blower 13.
  • the present invention has the following characteristics:
  • the door 12 is movably assembled at a side of the main body 11 and has an air-pushing veil 122.
  • the inverter 17a is used to control the air blower 13 and the air blower 13 is connected to the air inlet 111 on the HEPA filter 16 through a flexible pipe.
  • a plurality of cross flow fans 20 is set on the door 12; and the door is a telescopic sliding door to change a position of mouth for blowing air.
  • the cross flow fans 20 is controlled by a cross-flow fan controller 2 to provide a steady air flow to flow from the upper side of the door 12 and to flow through a section of honeycombs 123.
  • the suction box 14 is set beneath the main body 11 and the suction slot 141 is located at an edge of the main body 11 corresponding to the air-pushing veil 122 of the door 12, where a push-pull air-isolator is thus obtained.
  • the flow fields of the BSC are examined through a flow visualization and are effectively controlled to prevent contamination in the cabinet from leakage; and the position of the suction slot 141 can be changed to suck the contamination more effectively.
  • the HEPA filter 16 on the main body 11 fresh air flow is supplied to meet a physical mechanism between air suction and air supply.
  • the air curtain-isolated BSC obtains the physical mechanism between air suction and air supply; the air-isolator formed by the local air suction near the contamination source prevents the contamination from leakage; and, thus, energy is saved and contamination is prevented from leakage with practicality, convenience and safety.
  • FIG.4 to FIG.7C are views showing a straight curtain, a slightly concave curtain and a severely concave curtain; and views showing the changes of the oscillating curtain at different times.
  • push-pull air-isolators are divided into four type, comprising a straight curtain 71, a slightly concave curtain 72, a severely concave curtain 73 and an oscillating curtain 74.
  • the present invention is an air curtain-isolated BSC, where an air-isolator is formed at an opening of a door for isolating air flows inside and outside the BSC to prevent operators from damages owing to contamination leakage from the BSC, and to prevent contamination outside of the BSC from entering into the BSC to pollute a product in the BSC.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Ventilation (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
EP07123726.7A 2007-06-01 2007-12-19 Armoire de biosécurité isolée par rideau d'air Ceased EP2014365B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW096209015U TWM326441U (en) 2007-06-01 2007-06-01 Biological safety cabinet with air curtain

Publications (3)

Publication Number Publication Date
EP2014365A2 true EP2014365A2 (fr) 2009-01-14
EP2014365A3 EP2014365A3 (fr) 2009-06-17
EP2014365B1 EP2014365B1 (fr) 2013-04-17

Family

ID=39539876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07123726.7A Ceased EP2014365B1 (fr) 2007-06-01 2007-12-19 Armoire de biosécurité isolée par rideau d'air

Country Status (3)

Country Link
EP (1) EP2014365B1 (fr)
JP (1) JP4775595B2 (fr)
TW (1) TWM326441U (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102266210A (zh) * 2010-06-02 2011-12-07 乐金电子(天津)电器有限公司 高效空气过滤器
CN102349451A (zh) * 2011-08-30 2012-02-15 苏州市苏杭科技器材有限公司 一种隔离器的无泄漏传递装置
ES2522919A1 (es) * 2013-01-10 2014-11-19 Burdinola, S. Coop. Sistema de protección instalado en mobiliario de laboratorio
IT201600078030A1 (it) * 2016-07-26 2018-01-26 I M A Industria Macch Automatiche S P A In Sigla Ima S P A Gruppo di ventilazione per camere a contaminazione controllata
WO2019185764A1 (fr) * 2018-03-27 2019-10-03 Osmose Dispositif d'extraction d'air pour protéger les personnes des émissions de polluants
CN111315484A (zh) * 2018-04-24 2020-06-19 株式会社日立产机系统 安全柜
CN113339914A (zh) * 2021-08-06 2021-09-03 昌乐县人民医院 一种空气调节结构
CN115608713A (zh) * 2021-07-14 2023-01-17 北京小米移动软件有限公司 盖板承载台、盖板清洗装置及盖板清洗方法
TWI801898B (zh) * 2020-09-28 2023-05-11 日商日立產機系統股份有限公司 安全櫃體

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Publication number Priority date Publication date Assignee Title
JP5557244B2 (ja) * 2010-03-01 2014-07-23 株式会社ゲンダイプラント 揮発性薬剤充填容器の保管用ラック装置
JP5855436B2 (ja) * 2011-12-01 2016-02-09 株式会社多田製作所 ドラフトチャンバ
CN103272818B (zh) * 2013-06-05 2014-02-26 广州穗剑实验室科技有限公司 一种新型节能环保实验室数控通风柜
CN104146506A (zh) * 2014-08-18 2014-11-19 南品磊 一种实验室废弃物暂存柜
CN105595643A (zh) * 2015-12-23 2016-05-25 天津艾力特斯科技有限公司 一种可调节防震气瓶柜
JP6783193B2 (ja) * 2017-06-14 2020-11-11 株式会社日立産機システム 安全キャビネット
CN108225036B (zh) * 2018-01-23 2024-02-27 中钢集团鞍山热能研究院有限公司 一种加热炉炉口气封装置及气封方法
JP6875320B2 (ja) * 2018-04-24 2021-05-19 株式会社日立産機システム 安全キャビネット
CN109248895A (zh) * 2018-07-17 2019-01-22 雷柏特（南通）实验室系统工程有限公司 一种实验室气幕式抽风下通风柜
AT523913B1 (de) * 2020-06-29 2022-01-15 Trotec Laser Gmbh Laserplotter

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JPH01107851A (ja) * 1987-10-20 1989-04-25 Oriental Giken Kogyo Kk ドラフトチャンバーにおける送風排気方法及びその装置
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102266210B (zh) * 2010-06-02 2015-08-05 乐金电子(天津)电器有限公司 高效空气过滤器
CN102266210A (zh) * 2010-06-02 2011-12-07 乐金电子(天津)电器有限公司 高效空气过滤器
CN102349451A (zh) * 2011-08-30 2012-02-15 苏州市苏杭科技器材有限公司 一种隔离器的无泄漏传递装置
ES2522919A1 (es) * 2013-01-10 2014-11-19 Burdinola, S. Coop. Sistema de protección instalado en mobiliario de laboratorio
US11608999B2 (en) 2016-07-26 2023-03-21 I.M.A. Industria Macchine Automatiche S.P.A. Fan assembly for cleanrooms
IT201600078030A1 (it) * 2016-07-26 2018-01-26 I M A Industria Macch Automatiche S P A In Sigla Ima S P A Gruppo di ventilazione per camere a contaminazione controllata
WO2018019771A1 (fr) * 2016-07-26 2018-02-01 I.M.A. Industria Macchine Automatiche S.P.A. Ensemble ventilateur pour salles propres
WO2019185764A1 (fr) * 2018-03-27 2019-10-03 Osmose Dispositif d'extraction d'air pour protéger les personnes des émissions de polluants
FR3079601A1 (fr) * 2018-03-27 2019-10-04 Osmose Dispositif d'extraction d'air pour proteger les personnes des emissions de polluants
CN111315484A (zh) * 2018-04-24 2020-06-19 株式会社日立产机系统 安全柜
CN111315484B (zh) * 2018-04-24 2022-04-08 株式会社日立产机系统 安全柜
US11666899B2 (en) 2018-04-24 2023-06-06 Hitachi Industrial Equipment Systems Co., Ltd. Safety cabinet
TWI801898B (zh) * 2020-09-28 2023-05-11 日商日立產機系統股份有限公司 安全櫃體
CN115608713A (zh) * 2021-07-14 2023-01-17 北京小米移动软件有限公司 盖板承载台、盖板清洗装置及盖板清洗方法
CN113339914B (zh) * 2021-08-06 2021-10-15 昌乐县人民医院 一种空气调节结构
CN113339914A (zh) * 2021-08-06 2021-09-03 昌乐县人民医院 一种空气调节结构

Also Published As

Publication number Publication date
JP4775595B2 (ja) 2011-09-21
TWM326441U (en) 2008-02-01
EP2014365A3 (fr) 2009-06-17
JP2008295448A (ja) 2008-12-11
EP2014365B1 (fr) 2013-04-17

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