CA2030579A1 - Air curtain fume cabinet and method - Google Patents

Air curtain fume cabinet and method

Info

Publication number
CA2030579A1
CA2030579A1 CA 2030579 CA2030579A CA2030579A1 CA 2030579 A1 CA2030579 A1 CA 2030579A1 CA 2030579 CA2030579 CA 2030579 CA 2030579 A CA2030579 A CA 2030579A CA 2030579 A1 CA2030579 A1 CA 2030579A1
Authority
CA
Canada
Prior art keywords
jet
air
curtain
air curtain
flow
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
CA 2030579
Other languages
French (fr)
Other versions
CA2030579C (en
Inventor
Bernard Etkin
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.)
AEROSPACE ENGINEERING AND RESEARCH CONSULTANTS Ltd
Original Assignee
AEROSPACE ENGINEERING AND RESEARCH CONSULTANTS 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 AEROSPACE ENGINEERING AND RESEARCH CONSULTANTS Ltd filed Critical AEROSPACE ENGINEERING AND RESEARCH CONSULTANTS Ltd
Priority to CA 2030579 priority Critical patent/CA2030579C/en
Priority to EP91310742A priority patent/EP0487342A1/en
Publication of CA2030579A1 publication Critical patent/CA2030579A1/en
Application granted granted Critical
Publication of CA2030579C publication Critical patent/CA2030579C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

An air curtain fume cabinet, in which an air curtain jet is directed across the face opening to an exhaust duct.
Sufficient flow is exhausted at the exhaust duct to swallow (i) the entire air curtain jet, plus (ii) all of the air which the jet entrains from outside the face opening, plus (iii) a substantial additional amount of air. This greatly increases the velocity of air moving into the curtain at its top, beyond the normal entrainment velocity, and prevents spill-back of jet air to the outside even with substantial crosswinds. Preferably the ratio of exhaust flow to jet flow is between 2 and 3 for a jet height to jet thickness ratio of up to about 15. Preferably auxiliary air is supplied to the working space interior to replace air entrained into the jet from inside the working space.
CA 2030579 1990-11-22 1990-11-22 Air curtain fume cabinet and method Expired - Fee Related CA2030579C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA 2030579 CA2030579C (en) 1990-11-22 1990-11-22 Air curtain fume cabinet and method
EP91310742A EP0487342A1 (en) 1990-11-22 1991-11-21 Air curtain fume cabinet and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2030579 CA2030579C (en) 1990-11-22 1990-11-22 Air curtain fume cabinet and method

Publications (2)

Publication Number Publication Date
CA2030579A1 true CA2030579A1 (en) 1992-05-23
CA2030579C CA2030579C (en) 1994-08-02

Family

ID=4146498

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2030579 Expired - Fee Related CA2030579C (en) 1990-11-22 1990-11-22 Air curtain fume cabinet and method

Country Status (2)

Country Link
EP (1) EP0487342A1 (en)
CA (1) CA2030579C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2351401A (en) 1999-12-14 2001-06-25 Georg Emanuel Koppenwallner Method and device for capturing, separating and aspirating fluids using frontal turbulence generators
DE10015666A1 (en) * 1999-12-14 2001-06-28 Georg Emanuel Koppenwallner Method for capturing, separating and aspirating fluids using frontal turbulence generators with one arranged in arbitrary direction or several arranged and combined with aspiration slots
CN113751452B (en) * 2021-08-20 2023-04-07 哈工大泰州创新科技研究院有限公司 Laboratory fume chamber
CN113899050B (en) * 2021-09-22 2023-07-07 首都医科大学附属北京世纪坛医院 Air curtain space barrier device and system based on airflow dynamics model

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292525A (en) * 1965-09-13 1966-12-20 Donald D Jensen Protective air curtain for cooking area
GB1237694A (en) * 1968-08-19 1971-06-30 Progress Jets Ltd Improvements relating to air curtains
GB1582438A (en) * 1976-10-12 1981-01-07 Ici Ltd Heat treatment
DE2917853C2 (en) * 1979-05-03 1983-09-29 Heinrich Ing.(grad.) 5205 St. Augustin Hilbers Gas fume cupboard for chemical laboratory work or similar.

Also Published As

Publication number Publication date
CA2030579C (en) 1994-08-02
EP0487342A1 (en) 1992-05-27

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed