DK174380B1 - Device for controlling the flow through a duct - Google Patents

Device for controlling the flow through a duct Download PDF

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Publication number
DK174380B1
DK174380B1 DK200001299A DKPA200001299A DK174380B1 DK 174380 B1 DK174380 B1 DK 174380B1 DK 200001299 A DK200001299 A DK 200001299A DK PA200001299 A DKPA200001299 A DK PA200001299A DK 174380 B1 DK174380 B1 DK 174380B1
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DK
Denmark
Prior art keywords
housing
gear
guide
damper
flow
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DK200001299A
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Danish (da)
Inventor
Timo Kaasalainen
Vesa Saari
Juhani Hyvaerinen
Esa Maekinen
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Flaekt Oy
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Publication of DK200001299A publication Critical patent/DK200001299A/en
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Publication of DK174380B1 publication Critical patent/DK174380B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/03—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with a closure member in the form of an iris-diaphragm
    • 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
    • F24F13/105—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers composed of diaphragms or segments

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Air-Flow Control Members (AREA)
  • Flow Control (AREA)

Description

DK 174380 B1 | Den foreliggende opfindelse angår en indretning til styring af strømmen gennem I kanaler, hvilken styringsindretning virker ifølge Irisblændeprincippet og indbefatter et i J ringformet hus med drejeligt ophængt roterbare styrelameller monteret deri, og en drejelig styrering udformet til styring af placeringen af styrelamellerne, hvilken 5 strømningsstyringsindretning yderligere er tilvejebragt med en motor placeret derpå, hvilken motor er udformet til at kunne bevæge styreringen og herved styrelamellerne.DK 174380 B1 | The present invention relates to a device for controlling the flow through I channels, which control device operates according to the iris aperture principle and includes a J-shaped housing with pivotally mounted rotatable guide vanes mounted therein, and a rotatable controller designed for controlling the location of the control vanes, which further control the control device. is provided with a motor located thereon, which motor is designed to be able to move the steering and thereby the control slats.

Den styrede strøm kan eksempelvis være et luftformigt fluidum, såsom atmosfærisk luft. Der kan anvendes forskellige arter styreindretninger til måling og styring af 10 størrelsen af luftstrømmen. En simpel styreindretning indbefatter en drejelig dæmpningsindretning placeret inde i en kanal, hvor der ved omdrejning af dæmperen tilvejebringes en styring af tværsnitsarealet af strømningen gennem kanalen, og dermed af størrelse af luftstrømmen gennem kanalen. En ulempe ved en sådan art dæmper er det, at styringen af størrelsesordenen af luftstrømmen også ændrer 15 retningen af luftstrømmen.For example, the controlled flow may be an gaseous fluid such as atmospheric air. Various types of control devices can be used to measure and control the magnitude of the air flow. A simple control device includes a pivotal damping device located within a duct where, when rotating the damper, a control of the cross-sectional area of the flow through the duct is provided and thus the magnitude of the air flow through the duct. A disadvantage of such a damper is that the control of the order of the air flow also changes the direction of the air flow.

I Fl patentskrift nr. 50.184 er omtalt en anden art luftstrømsstyringsindretning, som er kendt som en irisdæmper, og som indbefatter et ringformet hus udformet ved to op imod hinanden monterede halvdele. En drejelig styrering og styrelamellerne i 20 irisblænden er indpasset mellem disse to halvdele. Styrelamellerne er i deres ene ende monteret drejeligt på drejetappe, som er fastgjort til den ene halvdel af det ringformede dæmperhus. De andre ender af styrelamellerne er tilvejebragt med tappe, som er udformet til glidende bevægelse i radialt førte spalter i styreringen. På denne måde vil en omdrejning af styreringen bringe irisåbningen, som er udformet ved de 25 formede styrelameller, til at trække sig sammen eller åbnes efter ønske.In Patent Specification No. 50,184, another type of airflow control device known as an iris damper is disclosed which includes an annular housing formed by two halves mounted opposite each other. A rotatable guide and the guide blades in the iris aperture are fitted between these two halves. The guide slats are mounted at one end pivotally on pivots which are attached to one half of the annular damper housing. The other ends of the guide slats are provided with pins which are designed for sliding movement in radially slotted slots in the guide ring. In this way, a rotation of the guide will cause the iris opening formed by the 25 shaped guide slats to contract or open as desired.

Ved den kendte teknik er styringen af gennemstrømningsåbningen i en irisdæmper tilvejebragt ved manuelle teknikker, som eksempelvis kræver anvendelse af en skruenøgle til omdrejning af en endemøtrik på en styreaksel, hvilken endemøtrik er 30 placeret på den udvendige flade på det ringformede dæmperhus, idet omdrejningen af akslen ved møtrikken på akselenden yderligere drejer den fortandede styrering, som aktiverer styrelamellerne. Fortandingen er udformet på den indvendige omkreds af styreringen.In the prior art, the control of the flow opening in an iris damper is provided by manual techniques which, for example, require the use of a wrench for turning an end nut on a guide shaft, which end nut is located on the outer surface of the annular damper housing, the rotation of the shaft. at the nut on the shaft end further rotates the toothed guide which activates the guide slats. The toothing is formed on the inner circumference of the guide.

35 En automatisering af irisstyringen er blevet forsøgt ved hjælp af en særskilt motor, som ved hjælp af en kompliceret forbindelsesmekanisme er forbundet med enden af 2 DK 174380 B1 styreakslen. I praksis har en sådan forbindelsesmekanisme vist sig at have en kort driftstid som følge af det store drejningsmoment, som er nødvendigt. Dette skyldes sikkerhedsbestemmelser, som kræver, at styreakslen skal være tilvejebragt med en friktion på forhånd, som er så stor, at den forhindrer manuel indgriben af indstillingen 5 af møtrikken med fingrene. Endvidere er styrenøjagtigheden kompromitteret ved sløret i forbindelsesmekanismen.35 An automation of the iris control has been attempted by means of a separate motor, which is connected to the end of the steering shaft by means of a complicated connection mechanism. In practice, such a connection mechanism has been found to have a short operating time due to the large torque required. This is due to safety regulations which require the steering shaft to be provided with a friction in advance which is so large as to prevent manual engagement of the setting 5 of the nut with the fingers. Furthermore, the control accuracy is compromised by the blurring in the connecting mechanism.

I US patentskrift nr. 3 787 022 omtales en irismekanisme til en ventil med en særlig udformning af lamellerne og med et med en elektromotor drevet tandhjul, som er i 10 indgreb med en fortandet aktiveringsplade, som styrer indstillingen af irismekanismen. Endvidere er der tilvejebragt en magnetbremse til fastholdelse af indstillingen.U.S. Patent No. 3,787,022 discloses an iris mechanism for a valve having a special design of the slats and with an electric motor driven sprocket which engages a toothed actuation plate which controls the setting of the iris mechanism. Furthermore, a magnetic brake is provided to maintain the setting.

I I US patentskrift nr. 4 094 492 er omtalt en irismekanisme, som indstilles ved et tandhjul i indgreb med en fortanding på en del af periferien på en ring. Tandhjulet kan 15 drives ved en elektromotor.In U.S. Patent No. 4,094,492, there is disclosed an iris mechanism which is adjusted by a cogwheel engaged by a tooth on a portion of the periphery of a ring. The gear can be driven by an electric motor.

I US patentskrift nr. 5 105 732 omtales en afskærmning for en vægmonteret ventilator med en ventil udformet som en irismekanisme, som drives enten ved et kædetræk eller ved et tandhjul i indgreb med en fortandet kantdel på en indstillingsring. Det 20 samlede drev drives ved en elektromotor.U.S. Patent No. 5,105,732 discloses a shielding for a wall-mounted fan with a valve designed as an iris mechanism, which is operated either by a sprocket or by a sprocket in engagement with a toothed edge portion of an adjusting ring. The 20 total drive is powered by an electric motor.

i I disse skrifter forekommer ikke nogen nærmere beskrivelse af en hensigtsmæssig udformning af indstillingsmekanismen og af tilvejebringelse af en kompakt, let udskiftelig enhed af styremekanismen og ej heller af en indretning til nøjagtig 25 overvågning af indstillingen.In these writings there is no further description of an appropriate design of the setting mechanism and of providing a compact, easily replaceable unit of the control mechanism, nor of a device for accurately monitoring the setting.

Det er et formål med den foreliggende opfindelse at tilvejebringe en motordrevet irisdæmper med en mere kompakt opbygning, højere driftspålidelighed og en mere nøjagtig styring og en lettere vedligeholdelse i forhold til den kendte teknik.It is an object of the present invention to provide a motor driven iris damper with a more compact design, higher reliability and more accurate control and easier maintenance compared to the prior art.

3030

Dette formål opnås med en irisdæmper af den indledningsvis omtalte art, som ifølge opfindelsen er ejendommelig ved den i den kendetegnende del af krav 1 angivne udformning.This object is achieved with an irrigation damper of the kind mentioned in the introduction, which according to the invention is characterized by the design according to the characterizing part of claim 1.

35 I forhold til den kendte teknik er der ved opfindelsen opnået, at nøjagtigheden af styringen af strømningsstørrelsen er forbedret, og vedligeholdelse, rengøring og DK 174380 B1 3 bekvem udskiftning af styreorganer og drivorganer er fremmet og pladsbehovet formindsket.In relation to the prior art, the invention has achieved that the accuracy of the control of the flow size is improved and maintenance, cleaning and convenient replacement of the control means and drive means have been promoted and the space requirement reduced.

En foretrukken udførelsesform af opfindelsen er karakteristisk ved, at styremotor, 5 reduktionsgear, styretandhjul og potentiometeret til positionsangivelse er integreret i en kompakt enhed, som er passet ind i et hus, hvorved enheden med huset kan monteres på udskiftelig vis på huset for strømningsstyringsindretningen.A preferred embodiment of the invention is characterized in that the steering motor, reduction gear, steering gear and the position indication potentiometer are integrated in a compact unit which fits into a housing, whereby the unit with the housing can be interchangeably mounted on the housing of the flow control device.

En anden foretrukken udførelsesform af opfindelsen er karakteristisk ved, at der er 10 monteret et potentiometer på drivakslen for tandhjulet til registrering af placeringen af tandhjulet. Potentiometeret virker således ved at tilvejebringe en realtidsangivelse af dæmperens aktuelle styreindstilling.Another preferred embodiment of the invention is characterized in that a potentiometer is mounted on the drive shaft of the sprocket for recording the location of the sprocket. Thus, the potentiometer works by providing a real-time indication of the current control setting of the damper.

En eksempelvis udførelsesform af opfindelsen forklares i det følgende nærmere under 15 henvisning til den vedlagte tegning, på hvilken fig. 1 er en afbildning set fra siden af en irisdæmpningsindretning til en gennemstrømningskanal udstyret med en styremotoren hed ifølge opfindelsen, 20 fig. 2 er en af en afbildning af et snit langs linien A-A i fig. 1, fig. 3 er en afbildning set ovenfra af opbygningen i fig. 1, fig. 4 er en afbildning set ovenfra af styreringen og styrelamellerne i irisdæmperen.An exemplary embodiment of the invention is explained in more detail below with reference to the accompanying drawing, in which: FIG. 1 is a side view of an irrigation damping device for a flow duct equipped with a control motor named in accordance with the invention; FIG. 2 is a sectional view taken along line A-A of FIG. 1, FIG. 3 is a top plan view of the structure of FIG. 1, FIG. 4 is a plan view of the irrigation damper control and guide blades.

25 I fig. 1 er vist en del af en gennemstrømningskanal 1, især en luftgennemstrømningskanal. Kanalen er tilvejebragt med en strømningsstyringsindretning af irisblændearten, hvis hus er angivet ved 8 på tegningen. Den indre opbygning af strømningsstyringsindretningen kan eksempelvis svare til den irisdæmper, som er 30 omtalt i Fl patentskrift nr. 50,184, bortset fra den heri anvendte dæmperstyringsteknik. Irisdæmperen ifølge opfindelsen er nemlig udstyret med en styremotorenhed 2, som indbefatter en motor 3, et reduktionsgear 4, et tandhjul 5 og et positionsangivende potentiometer 6. Styremotorenheden 2 er på udskiftelig vis monteret på huset 8 for irisdæmperen, således som vist i fig. 2, som er en afbildning af et snit langs linien A-A, 35 og den er udadtil beskyttet ved et hus 7. En mere detaljeret anskueliggørelse af styremotorenheden er også vist i fig. 2. Den ydre omkreds af irisdæmperhuset 8 er 4 DK 174380 B1 tilvejebragt med en åbning ved tandhjulet 5, således at tænderne på tandhjulet kan bringes i indgreb med fortandingen 10 på den ydre omkreds på styreringen 9 for irisdæmperen (jf. fig. 4). Tandhjulet 5 er placeret hovedsageligt uden for dæmperhuset, således som vist i fig. 2.In FIG. 1, a portion of a flow channel 1, in particular an air flow channel, is shown. The channel is provided with a flow control device of the iris aperture species, whose housing is indicated by 8 in the drawing. For example, the internal structure of the flow control device may correspond to the iris damper disclosed in FI Patent No. 50,184, except for the damper control technique used herein. Namely, the iris damper of the invention is equipped with a steering motor unit 2 which includes a motor 3, a reduction gear 4, a gear 5 and a position indicating potentiometer 6. The steering motor unit 2 is interchangeably mounted on the housing 8 of the iris damper, as shown in FIG. 2, which is a sectional view along line A-A, 35 and is outwardly protected by a housing 7. A more detailed illustration of the control unit is also shown in FIG. 2. The outer circumference of the iris damper housing 8 is provided with an opening at the gear 5 so that the teeth of the gear can be engaged with the tooth 10 on the outer circumference of the steering wheel 9 of the iris damper (cf. Fig. 4). The gear 5 is located substantially outside the damper housing, as shown in FIG. 2nd

55

Styreindretningen for strømningsstørrelsen ved hjælp af irisdæmperen er indsat ifølge opfindelsen således, at drivakslen for motoren 3 via udgangsakslen 11 fra reduktionsgearet 4 bringer det i indgreb værende tandhjul 5 i omdrejninger, hvilket tandhjul igen drejer styreringen 9. Som følge heraf vil styrelamelleme 12 i iris-10 dæmperen blive bevæget på kendt vis således, at der kan ske en forøgelse eller en sammentrækning af hullet 13 i irisdæmperen i afhængighed af styreringens omdrejningsretning.The flow size control device by means of the iris damper is inserted according to the invention such that the drive shaft of the motor 3 via the output shaft 11 from the reduction gear 4 engages the gear 5 which is in rotation, which gear again turns the steering 9. 10 the damper is moved in known manner so that an increase or contraction of the hole 13 in the iris damper may occur, depending on the direction of rotation of the guide ring.

Potentiometeret, som er monteret på tandhjulsakslen (hvilket kan være udgangsakslen 15 fra reduktionsgearet tillige) angiver den aktuelle indstilling af styreringen i irisdæmperen, hvilket fremmer en yderst nøjagtig styring af hullet i dæmperen.The potentiometer mounted on the gear shaft (which may be the output shaft 15 of the reduction gear as well) indicates the actual setting of the steering in the iris damper, which promotes a very accurate control of the hole in the damper.

For en fagmand indenfor området er det indlysende, at opfindelsen ikke er begrænset til de foran omtalte eksempelvise udførelsesformer, men kan varieres indenfor ånd og 20 omfang af de vedlagte krav. En detaljeret beskrivelse af opbygningen af irisdæmperen, som er kendt teknik, er undladt heri, men en sådan forklaring er omtalt eksempelvis i Fl patentskrift nr. 50.184.It will be obvious to those skilled in the art that the invention is not limited to the aforementioned exemplary embodiments, but may be varied in spirit and scope of the appended claims. A detailed description of the structure of the iris damper, which is known in the art, is omitted herein, but such an explanation is disclosed, for example, in Pat.

Claims (2)

1. Indretning til styring af strømmen gennem en kanal, hvilken styreindretning drives baseret på irisblændeprincippet og indbefatter et ringformet hus (8) med drejelige mellem hinanden indskudte styrelameller (12), som er indpasset i huset (8), 5 og en drejelig styrering (9) tilvejebragt tit styring af placering af lamellerne, på hvilken strømningsstyringsindretning yderligere er monteret en motor (3), som er udformet til at bevæge styreringen (9), og herved også styrelamellerne (12), som er forbundet med ringen, idet i det mindste en del af den ydre omkreds på styreringen (9) er tilvejebragt med fortanding (10), og hvor et tandhjul (5) er tilvejebragt med tænder udformet til 10 indgreb med fortanding (10), og hvor akslen (11) for tandhjulet (5) via et reduktionsgear (4) er forbundet med styremotoren (3), kendetegnet ved, at den ydre omkreds på det ringformede dæmperhus (8) er tilvejebragt med en åbning, hvorigennem fortandingen (10) og tandhjulet (5) er i indbyrdes indgreb, og at tandhjulet (5) er blevet monteret delvis uden for den ydre omkreds af den ringformede 15 dæmperhus (8), og at styremotoren (3), reduktionsgearet (4) og styretandhjulet (5) er integreret i en kompakt styreenhed, som er indpasset i et hus (7), hvorved styreenheden med huset kan monteres på udskiftelig vis på huset (8) for strømningsstyringsindretningen.Device for controlling the flow through a duct, which control device is operated based on the iris aperture principle and includes an annular housing (8) with rotatable interposed guide slats (12) which are fitted in the housing (8), 5 and a rotatable guide ( 9) provided for controlling the placement of the slats, on which flow control device is further mounted a motor (3) which is designed to move the guide (9), and thus also the guide slats (12) which are connected to the ring, at least a portion of the outer circumference of the guide ring (9) is provided with toothed gear (10), and a gear (5) is provided with teeth configured for geared toothed gear (10), and the shaft (11) of the gear wheel ( 5) is connected via a reduction gear (4) to the steering motor (3), characterized in that the outer circumference of the annular damper housing (8) is provided with an opening through which the tooth (10) and the sprocket (5) are mutually engaged. and that the gear (5) has been mounted partially outside the outer circumference of the annular 15 damper housing (8) and that the steering motor (3), the reduction gear (4) and the steering gear (5) are integrated into a compact control unit which is fitted into a housing (7) whereby the control unit with the housing can be interchangeably mounted on the housing (8) of the flow control device. 2. Indretning til styring af strømmen gennem en kanal ifølge krav 1, kendetegnet ved, at der er monteret et potentiometer (6) på akslen (11) for tandhjulet (5) med det formål, at tilvejebringe en realtidsafføling af tandhjulets (5) aktuelle stilling.Device for controlling the current through a channel according to claim 1, characterized in that a potentiometer (6) is mounted on the shaft (11) of the sprocket (5) for the purpose of providing a real-time sensing of the current of the sprocket (5). position.
DK200001299A 1998-03-13 2000-09-01 Device for controlling the flow through a duct DK174380B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI980564A FI980564A (en) 1998-03-13 1998-03-13 Volume control means for flow pipes
FI980564 1998-03-13
FI9900160 1999-03-02
PCT/FI1999/000160 WO1999047839A1 (en) 1998-03-13 1999-03-02 Flow control device for ducts

Publications (2)

Publication Number Publication Date
DK200001299A DK200001299A (en) 2000-09-01
DK174380B1 true DK174380B1 (en) 2003-01-13

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DK200001299A DK174380B1 (en) 1998-03-13 2000-09-01 Device for controlling the flow through a duct

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AU (1) AU2627499A (en)
DK (1) DK174380B1 (en)
FI (1) FI980564A (en)
NO (1) NO319828B1 (en)
SE (1) SE520548C2 (en)
WO (1) WO1999047839A1 (en)

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Publication number Priority date Publication date Assignee Title
GB2408095B (en) * 2003-11-11 2007-11-14 Airflow Dev Ltd Ventilation device
GB2438761B (en) * 2003-11-11 2008-06-11 Airflow Dev Ltd Ventilation device
US7326108B2 (en) 2005-02-16 2008-02-05 Airflow Developments Limited Ventilation device
ATE423941T1 (en) * 2005-09-20 2009-03-15 Veritas Ag VALVE DEVICE
CH704346B1 (en) 2007-02-05 2012-07-13 Imtmedical Ag Control valve for ventilators.
US8132783B2 (en) 2007-09-12 2012-03-13 Lumec Control Products, Inc Dynamic orifice valve apparatus and method
US9175786B2 (en) 2013-08-30 2015-11-03 Lumec Control Products, Inc. Valve apparatus
EP3431883A1 (en) 2017-07-19 2019-01-23 Silverline Endüstri ve Ticaret Anonim Sirketi Flow control device for an air exhaust system
CN110906442A (en) * 2018-09-13 2020-03-24 青岛海尔空调器有限总公司 Cabinet air conditioner and control method thereof
EP3825620A1 (en) 2019-11-25 2021-05-26 Silverline Endüstri ve Ticaret A.S. Diffuser for ventilation systems
EP3825621A1 (en) 2019-11-25 2021-05-26 Silverline Endüstri ve Ticaret A.S. Sensitive diffuser for central ventilation systems
EP3985312A1 (en) 2020-10-14 2022-04-20 Silverline Endüstri ve Ticaret A.S. An air balancing and aeration system comprising a diffuser
CN112197388A (en) * 2020-11-10 2021-01-08 东莞市净诺环境科技股份有限公司 New fan with wind gap control structure

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Publication number Priority date Publication date Assignee Title
US3787022A (en) * 1972-05-22 1974-01-22 C Wilcox Iris check valve and use thereof
US4094492A (en) * 1977-01-18 1978-06-13 The United States Of America As Represented By The United States Department Of Energy Variable orifice using an iris shutter
US5105732A (en) * 1990-11-28 1992-04-21 Sheu Muh Chuan Wall fan with proctective cover device

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DK200001299A (en) 2000-09-01
NO319828B1 (en) 2005-09-19
AU2627499A (en) 1999-10-11
FI980564A (en) 1999-09-14
SE0002817L (en) 2000-08-03
NO20004462D0 (en) 2000-09-07
SE520548C2 (en) 2003-07-22
NO20004462L (en) 2000-11-10
FI980564A0 (en) 1998-03-13
SE0002817D0 (en) 2000-08-03
WO1999047839A1 (en) 1999-09-23

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