DK377185A - PRESSURE REDUCTION ROOMS FOR VENTILATION DEVICES - Google Patents

PRESSURE REDUCTION ROOMS FOR VENTILATION DEVICES Download PDF

Info

Publication number
DK377185A
DK377185A DK377185A DK377185A DK377185A DK 377185 A DK377185 A DK 377185A DK 377185 A DK377185 A DK 377185A DK 377185 A DK377185 A DK 377185A DK 377185 A DK377185 A DK 377185A
Authority
DK
Denmark
Prior art keywords
chamber
housing
pressure
inlet pipe
pressure measurement
Prior art date
Application number
DK377185A
Other languages
Danish (da)
Other versions
DK160650B (en
DK160650C (en
DK377185D0 (en
Inventor
Juhani Laine
Tapio Paananen
Original Assignee
Rc Linja Ky
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 Rc Linja Ky filed Critical Rc Linja Ky
Publication of DK377185D0 publication Critical patent/DK377185D0/en
Publication of DK377185A publication Critical patent/DK377185A/en
Publication of DK160650B publication Critical patent/DK160650B/en
Application granted granted Critical
Publication of DK160650C publication Critical patent/DK160650C/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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Ventilation (AREA)
  • Measuring Volume Flow (AREA)
  • Duct Arrangements (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

A pressure reduction chamber for ventilation arrangements, designed for connection to a ventilation duct system and consisting of a housing 2 for connection to the inlet pipe 1 of the ventilation duct system, inside which housing there is, in the continuation of the inlet pipe, an inner chamber 3 provided with holes, such as, for example, a pipe section of the same size as the diameter of the inlet pipe, which delivers a uniform air flow into the housing and onward from the housing into the space which is to be ventilated. The shortcoming of previously known pressure-reduction chambers of this type is that they are generally very loud at high volume flows. The pressure-reduction chamber according to the invention has two pressure measurement chambers 4, 5 with one or more openings which open from one pressure measurement chamber 4 to the inner side of the inner chamber 3 and from the other pressure measurement chamber 5 to the outer side 3 of the inner chamber and into the space in the house 2. <IMAGE>
DK377185A 1984-10-17 1985-08-19 PRESSURE REDUCTION ROOMS FOR VENTILATION DEVICES DK160650C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI844085 1984-10-17
FI844085A FI71614C (en) 1984-10-17 1984-10-17 TRYCKREDUCERINGSKAMMARE FOER VENTILATIONSANORDNINGAR.

Publications (4)

Publication Number Publication Date
DK377185D0 DK377185D0 (en) 1985-08-19
DK377185A true DK377185A (en) 1986-04-18
DK160650B DK160650B (en) 1991-04-02
DK160650C DK160650C (en) 1991-09-02

Family

ID=8519754

Family Applications (1)

Application Number Title Priority Date Filing Date
DK377185A DK160650C (en) 1984-10-17 1985-08-19 PRESSURE REDUCTION ROOMS FOR VENTILATION DEVICES

Country Status (4)

Country Link
DK (1) DK160650C (en)
FI (1) FI71614C (en)
NO (1) NO157915C (en)
SE (1) SE459611B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508425C2 (en) * 1996-03-15 1998-10-05 Flaekt Ab Adjustment damper comprising slidable control means for controlling gas flow through duct

Also Published As

Publication number Publication date
SE8504867L (en) 1986-04-18
NO157915C (en) 1988-06-08
FI844085L (en) 1986-04-18
DK160650B (en) 1991-04-02
NO853291L (en) 1986-04-18
SE459611B (en) 1989-07-17
NO157915B (en) 1988-02-29
FI71614B (en) 1986-10-10
FI71614C (en) 1987-01-19
SE8504867D0 (en) 1985-10-17
DK160650C (en) 1991-09-02
FI844085A0 (en) 1984-10-17
DK377185D0 (en) 1985-08-19

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Legal Events

Date Code Title Description
PBP Patent lapsed