SE9200486L - Method and apparatus for measuring flow-through flows in ventilation systems - Google Patents

Method and apparatus for measuring flow-through flows in ventilation systems

Info

Publication number
SE9200486L
SE9200486L SE9200486A SE9200486A SE9200486L SE 9200486 L SE9200486 L SE 9200486L SE 9200486 A SE9200486 A SE 9200486A SE 9200486 A SE9200486 A SE 9200486A SE 9200486 L SE9200486 L SE 9200486L
Authority
SE
Sweden
Prior art keywords
measurement
radial plane
measurement point
flows
ventilation systems
Prior art date
Application number
SE9200486A
Other languages
Swedish (sv)
Other versions
SE513826C2 (en
SE9200486D0 (en
Inventor
R Holmberg
L Sjoeqvist
Original Assignee
Flaekt Ab
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 Flaekt Ab filed Critical Flaekt Ab
Priority to SE9200486A priority Critical patent/SE513826C2/en
Publication of SE9200486D0 publication Critical patent/SE9200486D0/en
Priority to AU20228/92A priority patent/AU2022892A/en
Priority to EP92912596A priority patent/EP0588901A1/en
Priority to PCT/SE1992/000413 priority patent/WO1992022790A1/en
Publication of SE9200486L publication Critical patent/SE9200486L/en
Priority to FI935554A priority patent/FI935554A/en
Priority to NO934545D priority patent/NO934545D0/en
Priority to NO19934545A priority patent/NO317312B1/en
Publication of SE513826C2 publication Critical patent/SE513826C2/en

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
    • F24F11/745—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 the air flow rate increasing with an increase of air-current or wind pressure
    • F24F11/043—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/30—Velocity

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Volume Flow (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The method determines flow rate by measurement of the local pressure at a measurement point in the vicinity of an inlet opening of a free suction fan (15). A measurement probe (20), open at one end, is used as a measurement device and oriented with its longitudinal axis in the inflow direction. The measurement point (20a) is situated axially inside an outer radial plane (B), which is located at an axial distance (a) outside an inner radial plane (A). The measurement point is located adjacent the inner radial plane (A), though always in the narrowest section of the fan inlet.
SE9200486A 1991-06-12 1992-02-17 Measuring total flow rate in ventilation installation SE513826C2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9200486A SE513826C2 (en) 1992-02-17 1992-02-17 Measuring total flow rate in ventilation installation
AU20228/92A AU2022892A (en) 1991-06-12 1992-06-12 Method and apparatus for measurement of total flow rate in ventilation installations
EP92912596A EP0588901A1 (en) 1991-06-12 1992-06-12 Method and apparatus for measurement of total flow rate in ventilation installations
PCT/SE1992/000413 WO1992022790A1 (en) 1991-06-12 1992-06-12 Method and apparatus for measurement of total flow rate in ventilation installations
FI935554A FI935554A (en) 1991-06-12 1993-12-10 Foerfarande och anordning Foer maetning av den totala stroemningshastigheten i ventilinstallationer
NO934545D NO934545D0 (en) 1991-06-12 1993-12-10 Procedure and device for measuring total flow rate in ventilation systems
NO19934545A NO317312B1 (en) 1991-06-12 1993-12-10 Method and apparatus for painting total flow rate in ventilation systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9200486A SE513826C2 (en) 1992-02-17 1992-02-17 Measuring total flow rate in ventilation installation

Publications (3)

Publication Number Publication Date
SE9200486D0 SE9200486D0 (en) 1992-02-17
SE9200486L true SE9200486L (en) 1993-08-18
SE513826C2 SE513826C2 (en) 2000-11-13

Family

ID=20385360

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9200486A SE513826C2 (en) 1991-06-12 1992-02-17 Measuring total flow rate in ventilation installation

Country Status (1)

Country Link
SE (1) SE513826C2 (en)

Also Published As

Publication number Publication date
SE513826C2 (en) 2000-11-13
SE9200486D0 (en) 1992-02-17

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Legal Events

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