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EP2565548A1 - Buse de décharge d'air pour aération à haute pression - Google Patents

Buse de décharge d'air pour aération à haute pression Download PDF

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Publication number
EP2565548A1
EP2565548A1 EP11179993A EP11179993A EP2565548A1 EP 2565548 A1 EP2565548 A1 EP 2565548A1 EP 11179993 A EP11179993 A EP 11179993A EP 11179993 A EP11179993 A EP 11179993A EP 2565548 A1 EP2565548 A1 EP 2565548A1
Authority
EP
European Patent Office
Prior art keywords
air inlet
air
cylinder
nozzle according
jacket
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.)
Withdrawn
Application number
EP11179993A
Other languages
German (de)
English (en)
Inventor
Grauf Borut
Miklos Nikolics
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.)
Strabag SE
Strabag AG
Original Assignee
Strabag SE
Strabag AG
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 Strabag SE, Strabag AG filed Critical Strabag SE
Priority to EP11179993A priority Critical patent/EP2565548A1/fr
Priority to RU2012137272/12A priority patent/RU2517118C2/ru
Priority to US13/603,509 priority patent/US20130056564A1/en
Publication of EP2565548A1 publication Critical patent/EP2565548A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0085—Systems using a compressed air circuit
    • 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
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect

Definitions

  • the invention relates to the ventilation and simultaneous air conditioning of buildings.
  • Ventilation in low-energy buildings is usually not via windows but via ventilation ducts.
  • the object of the invention is to provide an air inlet nozzle for high pressure ventilated rooms, which no longer affects people at work or sleep.
  • the nozzle should be able to reduce compressed air from a pressure range between 2 and 12 bar to ambient pressure (approximately 1 bar) while generating less than 40 dB (A), preferably less than 37 dB (A), of noise. It should also have little space and optically not disturbing.
  • the invention provides, the air inlet nozzle run very flat, so that it can be attached inconspicuously to the ceiling or wall.
  • the height to diameter ratio is less than 1: 3, preferably less than 1: 4.
  • the air inlet nozzle has a substantially low-cylindrical structure.
  • the center forms a preferably cylindrical air inlet space LE. This has on one side (base of the cylinder) the inlet opening for the compressed air, on the other side (top surface of the cylinder), it is closed.
  • the cylinder jacket ZE At the periphery of the air inlet space LE (the cylinder jacket ZE) are narrow openings (passages), e.g. simple bores, which forward the compressed air radially into a first Beerentitatisraum L1.
  • This Beerentitatisraum L1 surrounds the cylindrical air inlet space LE also cylindrical and has the same height in a preferred embodiment.
  • Its outer wall (cylinder jacket Z1) is formed by a likewise again provided with openings cylinder jacket Z1 same height as that of the air introduction space LE.
  • the space in this first air release space L1 is filled with a gas-permeable material.
  • a gas-permeable material In an advantageous embodiment, it is a band (width preferably equal to the height of the Beerentthesesraumes L1), which is wound around the jacket ZE of the air inlet space LE and thereby fills the Gutentschreibsraum L1.
  • the first air release space L1 is further surrounded by a second air release space L2.
  • This air release space L2 is also preferably cylindrical. Also, it is surrounded by a cylindrical cylinder Z2 provided with openings and contains in its interior a gas-permeable material, which is advantageously, as already in L1, wrapped around the outer jacket Z1 of the Beerentmechanicalsraums L1.
  • the following air release space L2 usually has the same height as the air release space L1. But it is also possible to make the air relaxation space L2 higher than L1!
  • the outer jacket Z1 is increased by Vietnameseentthesesraum L1 and also the outer jacket Z2 of Vietnameseentthesesraum L2 is increased to the same height.
  • the inner space L2 between the lateral surfaces Z1 and Z2 is filled with a gas-permeable material.
  • the cylinder jacket ZE of the air introduction space has openings of small diameter whose total opening area is small in relation to the cylinder jacket surface ZE.
  • the ratio of the added opening areas to the "active" total cylinder area is less than 0.05, preferably less than 0.02.
  • the diameter of the openings is (in the case of circular holes) 0.2 to 2 millimeters, preferably about 1 mm.
  • the gas-permeable, windable material is preferably a band-shaped nonwoven fabric.
  • a suitable material was a thickness of 4 mm and a weight per unit area of 600 g / m 2 .
  • the thickness may vary approximately up to a factor of 3, the basis weight by a factor of 2.
  • a fleece made of needled PES staple fibers proved to be particularly suitable.
  • Such a suitable nonwoven can be obtained with the type designation HDF H2511 from FILC (SI-1234 Menges).
  • the web is wound around the inner respective cylinder jacket with a small amount of tension so that its thickness is reduced only slightly (less than 30%).
  • the outer jacket Z1 of the first air venting space L1 likewise has openings, which are larger this time than in the inner cylinder jacket ZE.
  • the ratio of added opening areas to the total cylinder area is preferably greater this time than in the case of the inner cylinder jacket area of LE, namely at least 0.02.
  • the openings in the outer cylinder jacket Z2 of the Lucasentpressivesraums L2 also preferably have larger diameter than the innermost cylinder shell ZE.
  • the ratio of the added opening areas to the total cylinder area is here also preferably larger than at the innermost cylinder surface area ZE of LE, namely at least 0.05, preferably at least 0.1.
  • the radial distance d1 of the cylinder jacket surfaces from ZE to Z1 and d2 from Z1 to Z2 is not the same, but if d1 is greater than d2!
  • the distance d1 is about 20 to 100% greater than d2. It proved to be very suitable if d1 was 50% larger than d2.
  • vent nozzle is reversed in the figures as it hangs from the ceiling, but such a nozzle could also be mounted vertically to the wall, behind a radiator, or behind or in a cabinet.
  • Fig. 1 shows an overall perspective view of a cut vent nozzle.
  • the actual Gasentpressivesteil invention is still provided with an optical aperture 8 in the form of an inverted plate, which is connected by connecting means 12 to the Gasentpressivesteil.
  • the aperture 8 also has an additional, albeit minor, portion of the noise attenuation by blocking off noises originating from the air introduction space LE 9!
  • the cylinder top surface and base are here designed as a front plate 1 and base plate 2, which are held together by means of screws 11 (also 12), since there is an overpressure between the two plates 1 and 2, which would drive the plates apart.
  • the compressed air supply leads in the form of a nozzle in the air inlet space LE 9.
  • the cylinder wall ZE 10 extends beyond the base plate 2 and there forms the connecting piece to the high pressure pipe.
  • the air introduction space LE 9 is in this embodiment, in addition to the face plate 1, suitably closed upwards to the face plate 1 out.
  • the total part of perforated cylinder shell ZE 10, cylinder end closure and supply line is referred to in the figure as an expansion core 3.
  • Fig. 2 shows a cross section through the same embodiment.
  • the outer diameter of the outermost cylinder wall Z2 5 is 190 mm.
  • the inner height of the nozzle cylinder (distance between front plate 1 and base plate 2) is 30 mm.
  • the air introduction space LE 9 has an inner diameter of 30 mm in the exemplary embodiment. However, this can vary within a wide range, depending on the application and overall size of the air inlet nozzle. Useful diameters are between 10 and 100 millimeters.
  • the embodiment described allows an air flow rate of 90 m 3 / h at an exit velocity of the air from the nozzle of 2.7 to 3 m / s.
  • the noise level is very low at 35 to 37 dB (A)!

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Duct Arrangements (AREA)
EP11179993A 2011-09-05 2011-09-05 Buse de décharge d'air pour aération à haute pression Withdrawn EP2565548A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP11179993A EP2565548A1 (fr) 2011-09-05 2011-09-05 Buse de décharge d'air pour aération à haute pression
RU2012137272/12A RU2517118C2 (ru) 2011-09-05 2012-09-03 Редукционное воздушное сопло для высоконапорных вентиляционных систем
US13/603,509 US20130056564A1 (en) 2011-09-05 2012-09-05 Air expansion nozzle for high pressure ventilation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11179993A EP2565548A1 (fr) 2011-09-05 2011-09-05 Buse de décharge d'air pour aération à haute pression

Publications (1)

Publication Number Publication Date
EP2565548A1 true EP2565548A1 (fr) 2013-03-06

Family

ID=44983429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11179993A Withdrawn EP2565548A1 (fr) 2011-09-05 2011-09-05 Buse de décharge d'air pour aération à haute pression

Country Status (3)

Country Link
US (1) US20130056564A1 (fr)
EP (1) EP2565548A1 (fr)
RU (1) RU2517118C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE541076C2 (sv) 2014-02-11 2019-03-26 Lindab Ab Ventilationsdon med ljuddämpning.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004507A1 (fr) * 1986-01-23 1987-07-30 Halton Oy Diffuseur d'air d'entree
DE3805873A1 (de) * 1988-02-25 1989-09-07 Zander Waermetechnik Kulmbach Luftauslasssystem in elementbauweise
DE4222064A1 (de) * 1991-07-06 1993-01-14 Ltg Lufttechnische Gmbh Luftauslass
US20070015455A1 (en) * 2005-07-13 2007-01-18 York International Corporation Orifice boundary layer suction method and system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US927246A (en) * 1908-12-14 1909-07-06 Miller Dickson W Muffler for explosive-engines.
US2644389A (en) * 1949-10-27 1953-07-07 W B Connor Engineering Corp Diffuser for air conditioning systems
US4108274A (en) * 1976-07-06 1978-08-22 Jet Aeration Company Acoustical apparatus
CA2164370A1 (fr) * 1995-12-04 1997-06-05 Donald L. Allen Attenuateur acoustique reactif
RU2188986C2 (ru) * 2000-10-12 2002-09-10 Гончаров Александр Викторович Воздухораспределитель
US6868939B2 (en) * 2003-02-25 2005-03-22 Vicious Cycle Performance, Inc. Exhaust silencer system
US20060240763A1 (en) * 2003-04-23 2006-10-26 Fumiharu Takeda Ventilator
SE0401477L (sv) * 2004-06-10 2005-12-11 Lindab Ab Tilluftsdon
RU73451U1 (ru) * 2007-11-07 2008-05-20 Общество с ограниченной ответственностью "Арктос" (ООО "Арктос") Воздухораспределитель

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004507A1 (fr) * 1986-01-23 1987-07-30 Halton Oy Diffuseur d'air d'entree
DE3805873A1 (de) * 1988-02-25 1989-09-07 Zander Waermetechnik Kulmbach Luftauslasssystem in elementbauweise
DE4222064A1 (de) * 1991-07-06 1993-01-14 Ltg Lufttechnische Gmbh Luftauslass
US20070015455A1 (en) * 2005-07-13 2007-01-18 York International Corporation Orifice boundary layer suction method and system

Also Published As

Publication number Publication date
RU2012137272A (ru) 2014-03-10
US20130056564A1 (en) 2013-03-07
RU2517118C2 (ru) 2014-05-27

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