EP0699875B1 - Belüftungsvorrichtung - Google Patents

Belüftungsvorrichtung Download PDF

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Publication number
EP0699875B1
EP0699875B1 EP95850148A EP95850148A EP0699875B1 EP 0699875 B1 EP0699875 B1 EP 0699875B1 EP 95850148 A EP95850148 A EP 95850148A EP 95850148 A EP95850148 A EP 95850148A EP 0699875 B1 EP0699875 B1 EP 0699875B1
Authority
EP
European Patent Office
Prior art keywords
flow
damper
disc
ventilation
ventilation apparatus
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.)
Expired - Lifetime
Application number
EP95850148A
Other languages
English (en)
French (fr)
Other versions
EP0699875A2 (de
EP0699875A3 (de
Inventor
Örjan GÖTMALM
Thomas Ahlfors
Gary BERGSTRÖM
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.)
UK Secretary of State for Defence
ABB Technology FLB AB
Original Assignee
UK Secretary of State for Defence
ABB 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 UK Secretary of State for Defence, ABB Flaekt AB filed Critical UK Secretary of State for Defence
Publication of EP0699875A2 publication Critical patent/EP0699875A2/de
Publication of EP0699875A3 publication Critical patent/EP0699875A3/de
Application granted granted Critical
Publication of EP0699875B1 publication Critical patent/EP0699875B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F24F11/00—Control or safety arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/02—Ventilation; Air-conditioning
    • B63J2/04—Ventilation; Air-conditioning of living spaces
    • 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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/40—Pressure, e.g. wind pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure

Definitions

  • the present invention relates to a ventilation apparatus for ventilation and temperature control in accommodations
  • a ventilation apparatus for ventilation and temperature control in accommodations comprising an inlet which is connected to a ventilation channel, at least one outlet which is connected to said accommodation, damper means located between the inlet and the outlet, for volume control of the air flow to the accommodation via at least two cooperating damper discs having flow passages the flow area of which are variable by rotating at least one of the damper discs around a spindle, and a control unit for controlling the flow and temperature, for adaption to a desired temperature level.
  • air is supplied to accommodation areas like for example cabins.
  • the air is used for controlling the temperature in the accommodation area and for replacing air which is ventilated out from the area.
  • the US-A-4426918 discloses a proportioning air diffuser system and an air diffuser therefor, for venting air from a dynamic plenum having areas of relatively of greater and lesser static pressure.
  • Each diffusor has a plurality of selectively adjustable vent openings and a corresponding plurality of air extractors extending into the plenum to divert air through the diffuser, the effective venting area is selectively adjustable, but only within limits that prevent the diffusers from being completely closed.
  • the diffusers are distributed along the plenum with their effective vent areas progressively increasing from plenum areas of geater to areas of lesser static pressure. The volumetric rate of air flow can thereby be balanced.
  • One object of the present invention is to provide a ventilation apparatus with compact installation dimensions, which result in a low intrinsic pressure drop for efficient air supply, with accurate damping over a large flow range, despite pressure variations at the inlet side of the apparatus, and with a small generation of noise over the entire said flow range.
  • the apparatus according to the invention is characterized in that the damper means, heat production means and sensors connected to the control unit, are located in a cylindrical channel section, that each flow passage in the damper means in every position of rotation form a funnel which narrows gradually in the direction of flow, so that the damper means in almost completely closed position presents slit-shaped flow openings with wall which converge in the direction of flow, and that one of the damper discs is thin and located upstream another damper disc, and is also provided with a number of vanes corresponding to the number of flow passages, which vanes are angled from the disc plane in the direction downstream and projects into the flow passages, to form one side in the flow passage with substantially the same length as the other sides and with a corresponding narrowing in the direction of flow.
  • Adjustment of the ventilation apparatus is facilitated by the use of pressure dependant flow control.
  • the adjustment is made by means of a differential pressure sensor.
  • the ventilation apparatus shown in Fig. 1 and 2 comprises a cylindrical tube housing 10, which is mounted in a ventilation channel via conical end connectors 11. These make it possible to connect the apparatus to channel systems with sealing rings either on the inner or the outer tube.
  • the mounting is made by means of buckle clamps 12, which make it simple to dismount the ventilation apparatus from the channel system as a complete unit for reparation or maintenance.
  • An oblong coupling box 13 for electrical equipment is mounted longitudinally and at the outside of the tube housing 10.
  • the arrow 14 in Fig. 1 depicts the direction of flow through the ventilation apparatus which is supplied with fresh air which has been dried and cooled to a comparatively low temperature, e.g. +15 DEG C.
  • Two in a double spiral shape coiled heating electrodes 15 are mounted at the inlet side of the tube housing 10 and are each provided with an output of 900W, which output is variable infinitely variable.
  • the output control is done in an electronic control unit 16 with respect to air flow and temperature demands for the area which is served by the ventilation apparatus.
  • a damper device 17 is mounted downstream the electrodes 15 in the tube housing 10, and will be described more in detail below, but broadly comprises a damper disc 19 which is fixed by means of screws 18 in the tube housing, and is provided with a spindle 20.
  • the spindle 20 carries a turnable journalled damper disc 21 and an also turnable, between the two damper discs 19,21 journalled slave disc 22.
  • the damper disc 21 is operated via a gearwheel 23, a transmission 24 and a stepping motor 25 which is connected to the control unit 16.
  • Temperature sensors 27 are mounted as lead-throughs in the tube housing 10, both at the upstream and the downstream side of the damper device 17. The temperature sensors 27 are connected to the control unit 16. A differential pressure sensor 28 is mounted together with sensor probes 29 upstream and downstream the damper device 17. The differential pressure sensor 28 is also connected to the control unit 16.
  • the fixed damper disc 19 of the damper device 17 has a normal thin plate thickness and is provided with five flow openings 30, which are distributed with equal spacing along the circumference on the circular disc.
  • Each of the passages 30 designed as a circular sector with a truncated point.
  • Each of said sectors has an angular measurement of about 36 DEG.
  • One of the angle sides of each sector is provided with one from the disc plane, in almost right angle to the direction of flow bent vane 31.
  • the vanes 31 protrude a good 25 mm from the disc plane.
  • the turnable damper disc 21 of the damper device 17 has in its turn a thickness of about 25 mm.
  • Five flow passages 32 are in the same way distributed with equal spacing along the circumference of the disc 21.
  • Each of the passages 32 is designed as a circular sector with a truncated point.
  • Each of said sectors has an angular measurement of about 36 DEG, wherein the angle sides incline somewhat conically in the direction of flow, so that the flow opening tapers gradually with a few degrees of angle in said direction.
  • the vanes 31 on the fixed damper disc 19 project down into the passages 32, so that their end edges 33 are in parallel with one of the downstream located angle edges of these passages.
  • the damper disc 21 is influenced by a not shown torsion spring, the object of which is to exert a turning force which absorbs any possible backlash in the gear mesh with the gear 23. Because the torsion spring strives to turn the disc 21 in the direction towards the fully open position, the spring is in its maximum tensioned state when the damper is fully closed. This is convenient because the damper is from the point of view with regard to adjustability most sensitive in the vicinity of the fully closed position.
  • the slave disc 22 is also manufactured from sheet and is provided with flow openings 34 which fully correspond to the shape of the passages 30 in the fixed damper disc 19.
  • the slave disc 22 is affected by the rotation of the turnable damper disc 21, so that it is brought along during the end phase of this rotation, i.e. during turning from fully open to fully closed position.
  • the arms 35 which delimit the openings 34 are used for shielding the flow passages 30 of the fixed damper disc 19, so that these do not expose the next following passage 32 in the turnable damper disc 21.
  • the flow through the damper occurs via long and narrow, funnel-shaped, radially arranged slit openings, each of which is delimited by walls which converge in the direction of flow to form a passage the length of which is substantially larger than the width of the slit opening.
  • this length corresponds to at least one eighth of the largest circumference of the flow passage.
  • the slit openings are closed.
  • the slave disc 22 is brought along by the turnable damper disc 21, until the arms 35 of the slave disc again are overlapped by the arms which delimit the openings 30 of the damper fixed disc 19.
  • control unit may compensate for variations in supplied pressure in the channel system, which may be caused by variations in air consumption at the rest of the connected apparatuses, by variations in wind pressure at inlets/outlets of the fans which serve the system, etcetera. These pressure changes can otherwise produce inertia and problems in the entire control system during the transient period, which in its turn will lead to temperature variations in the area and to an unnecessary high consumption of energy and wear on means for control of volume flow.
  • control unit 13 This is avoided by also supplying the control unit 13 with information about characteristics for the means for volume flow control with regard to position - supply pressure - received volume flow, so that alterations in position can be performed more rapidly and more precisely.
  • the ventilation apparatus By means of the above described sensors and the control unit 16 it is possible to create different conditions of reliability which therefore will be physically built into the ventilation apparatus.
  • the material of damper is selected out of consideration for till that the apparatus should be able to function as a fire damper.
  • damper 17 may be provided with different openings than shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Air-Flow Control Members (AREA)
  • Duct Arrangements (AREA)

Claims (6)

  1. Lüftungsvorrichtung für die Belüftung und die Regelung der Temperatur in Unterkünften, z. B. auf Schiffen, umfassend einen Einlaß, der mit einem Lüftungskanal verbunden ist, zumindest einen Auslaß, der mit der Unterkunft verbunden ist, Dämpfermittel (17), die zwischen dem Einlaß und dem Auslaß angeordnet sind, für die Regelung des Volumens des Luftstromes in die Unterkunft über zumindest zwei zusammenwirkende Dämpferscheiben (19, 21), die Durchflußwege (30, 32) aufweisen, deren Durchflußquerschnitt durch Drehen von zumindest einer Dämpferscheibe (21) um eine Spindel (20) veränderlich ist, und eine Regeleinrichtung (16) für das Regeln des Durchflusses und der Temperatur zwecks der Anpassung an ein Soll-Temperaturniveau,
    dadurch gekennzeichnet, daß die Dämpfermittel (17), Wärme-erzeugungsmittel (15) und Sensoren (27, 28), die mit der Regeleinrichtung (16) verbunden sind, in einem zylindrischen Kanalabschnitt (10) angeordnet sind, daß jeder Durchflußweg (30, 32) in dem Dämpfermittel in jeder Drehposition einen Trichter bildet, der sich in Fließrichtung allmählich verengt, so daß das Dämpfermittel (17) in der fast völlig geschlossenen Position schlitzförmige Durchflußöffnungen mit Wand aufweist, die in Fließrichtung konvergieren, und daß eine Dämpferscheibe (19) dünn und oberhalb einer anderen Dämpferscheibe (21) angeordnet ist und auch mit einer Anzahl von Flügeln (31) entsprechend der Anzahl der Durchflußwege (32) versehen ist, wobei die Flügeln in einem Winkel zur Scheibenebene in flußabwärtiger Richtung angeordnet sind und in die Durchflußwege hineinragen, um in dem Durchflußweg eine Seite mit im wesentlichen der gleichen Länge wie die anderen Seiten und mit einer entsprechenden Verengung in Fließrichtung zu bilden.
  2. Lüftungsvorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, daß die Durchflußwege (30, 32) sich mit einer Länge, die zumindest einem Achtel des größten Umfangs des Durchflußweges entspricht, in Längsrichtung des Kanalabschnittes (10) erstrecken.
  3. Lüftungsvorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, daß zwei Dämpferscheiben vorhanden sind, wobei eine Scheibe (21) aus einer Scheibe mit einer bestimmten Materialdicke besteht und eine Anzahl von segmentförmigen Durchflußwegen (32) aufweist, die sich im wesentlichen parallel durch die Scheibe hindurch in Längsrichtung des Kanalabschnittes (10) erstrecken.
  4. Lüftungsvorrichtung nach Anspruch 3,
    dadurch gekennzeichnet, daß eine Nebenscheibe (22) zwischen den zwei Dämpferscheiben (19, 21) angeordnet ist und so gestaltet ist, daß sie durch die drehbare Dämpferscheibe (21) voran gebracht wird.
  5. Lüftungsvorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, daß der zylindrische Kanalabschnitt (10) mit Mitteln (12) versehen ist, die ein einfaches lösbares Anbringen an Rohrenden (11) ermöglichen.
  6. Lüftungsvorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, daß die Leistungsabgabe des Wärmeerzeugungsmittels (15) durch die Regeleinrichtung (16) mittels einer Rückkopplung eines Sensorsignals geregelt wird, das den Durchfluß durch die Vorrichtung charakterisiert, und zwar unabhängig von Druckschwankungen in dem Lüftungskanal.
EP95850148A 1994-09-05 1995-08-29 Belüftungsvorrichtung Expired - Lifetime EP0699875B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9402964 1994-09-05
SE9402964A SE510102C2 (sv) 1994-09-05 1994-09-05 Tilluftsapparat med trattformade flödespassager

Publications (3)

Publication Number Publication Date
EP0699875A2 EP0699875A2 (de) 1996-03-06
EP0699875A3 EP0699875A3 (de) 1997-10-22
EP0699875B1 true EP0699875B1 (de) 2001-11-07

Family

ID=20395139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95850148A Expired - Lifetime EP0699875B1 (de) 1994-09-05 1995-08-29 Belüftungsvorrichtung

Country Status (6)

Country Link
EP (1) EP0699875B1 (de)
DE (1) DE69523697T2 (de)
DK (1) DK0699875T3 (de)
FI (1) FI954076A (de)
NO (1) NO304201B1 (de)
SE (1) SE510102C2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10144806A1 (de) * 2001-09-12 2003-03-27 Behr Gmbh & Co Kg Vorrichtung zur Durchsatzregelung eines Mediums durch einen Kanal und zur Temperaturermittlung des Mediums in dem Kanal

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106628095B (zh) * 2016-10-18 2019-01-04 芜湖市智行天下工业设计有限公司 船舶货仓甲板通风筒
CN106275355B (zh) * 2016-10-18 2019-01-04 芜湖文青机械设备设计有限公司 新型船舶货仓甲板通风筒
BE1024984B1 (nl) * 2017-02-08 2018-09-10 Begetube N V Debietregelaar

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH325775A (fr) * 1955-05-10 1957-11-30 Lyonnais D Emboutissage Specia Obturateur
US3528359A (en) * 1969-05-19 1970-09-15 Vulcan Radiator Co The Louvered valve
DE2219380C3 (de) * 1972-04-20 1978-11-16 Ltg Lufttechnische Gmbh, 7000 Stuttgart Volumenstromregler
US4426918A (en) * 1980-04-25 1984-01-24 Lambert Robert R Proportioning air diffuser and system
JPS58165531U (ja) * 1982-04-28 1983-11-04 東京プレス工業株式会社 二重天井をサプライチヤンバとした空気調和装置
FR2552861B1 (fr) * 1983-10-04 1989-03-31 Tagnon Claude Aerotherme

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10144806A1 (de) * 2001-09-12 2003-03-27 Behr Gmbh & Co Kg Vorrichtung zur Durchsatzregelung eines Mediums durch einen Kanal und zur Temperaturermittlung des Mediums in dem Kanal

Also Published As

Publication number Publication date
SE510102C2 (sv) 1999-04-19
SE9402964D0 (sv) 1994-09-05
FI954076A (fi) 1996-03-06
NO304201B1 (no) 1998-11-09
NO953471D0 (no) 1995-09-04
DE69523697T2 (de) 2002-08-01
FI954076A0 (fi) 1995-08-31
EP0699875A2 (de) 1996-03-06
NO953471L (no) 1996-03-06
DE69523697D1 (de) 2001-12-13
SE9402964L (sv) 1996-03-06
DK0699875T3 (da) 2002-03-11
EP0699875A3 (de) 1997-10-22

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