CA2249113A1 - Airflow rate regulating device - Google Patents

Airflow rate regulating device Download PDF

Info

Publication number
CA2249113A1
CA2249113A1 CA002249113A CA2249113A CA2249113A1 CA 2249113 A1 CA2249113 A1 CA 2249113A1 CA 002249113 A CA002249113 A CA 002249113A CA 2249113 A CA2249113 A CA 2249113A CA 2249113 A1 CA2249113 A1 CA 2249113A1
Authority
CA
Canada
Prior art keywords
airflow rate
regulating device
rate regulating
pressure
source
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
CA002249113A
Other languages
French (fr)
Other versions
CA2249113C (en
Inventor
Michel Trussart
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.)
SYSTEMES ET PROCEDES DYNAPHARM Inc
Original Assignee
SYSTEMES ET PROCEDES DYNAPHARM Inc
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 SYSTEMES ET PROCEDES DYNAPHARM Inc filed Critical SYSTEMES ET PROCEDES DYNAPHARM Inc
Priority to CA002249113A priority Critical patent/CA2249113C/en
Publication of CA2249113A1 publication Critical patent/CA2249113A1/en
Application granted granted Critical
Publication of CA2249113C publication Critical patent/CA2249113C/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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Fluid Pressure (AREA)
  • Ventilation (AREA)

Abstract

An airflow rate regulating device which is installed in a vacuum unit that collects contaminants from a processing station in a controlled space. This device enables a vacuum unit to maintain a continuous suction of contaminant particles from a processing station when there are pressure variations in the controlled space. The airflow rate regulating device is mounted in a suitable cabinet 88 and connected to a vacuum source, the airflow rate regulating device has a casing divided into two chambers separated by a wall having an passageway through which air flows from one chamber to the next. Each chamber features an airflow rate regulation valve comprising a movable member extending across the flow of air passing through the casing, that can be adjusted using counterweights. When a pressure disturbance occurs in the controlled room from a door opening, or when a hose leading the contaminant source is disconnected, the airflow rate regulation valves react to maintain sufficient vacuum pressure at the contaminants source. Since the airflow rate regulating device is mechanical, its response time to pressure is nearly instantaneous.
CA002249113A 1998-10-02 1998-10-02 Airflow rate regulating device Expired - Fee Related CA2249113C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002249113A CA2249113C (en) 1998-10-02 1998-10-02 Airflow rate regulating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002249113A CA2249113C (en) 1998-10-02 1998-10-02 Airflow rate regulating device

Publications (2)

Publication Number Publication Date
CA2249113A1 true CA2249113A1 (en) 2000-04-02
CA2249113C CA2249113C (en) 2001-12-25

Family

ID=4162871

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002249113A Expired - Fee Related CA2249113C (en) 1998-10-02 1998-10-02 Airflow rate regulating device

Country Status (1)

Country Link
CA (1) CA2249113C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110410815A (en) * 2019-08-26 2019-11-05 山东爱客多热能科技有限公司 A kind of negative pressure automatic adjusument valve for regulating gas fire grate cigarette system pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110410815A (en) * 2019-08-26 2019-11-05 山东爱客多热能科技有限公司 A kind of negative pressure automatic adjusument valve for regulating gas fire grate cigarette system pressure

Also Published As

Publication number Publication date
CA2249113C (en) 2001-12-25

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed