DK146136B - VENTILATING DAM WITH A NUMBER OF PARALLEL SURFACES AND AT THE TIME OF TURNED RECTANGULAR DAMBLES - Google Patents

VENTILATING DAM WITH A NUMBER OF PARALLEL SURFACES AND AT THE TIME OF TURNED RECTANGULAR DAMBLES Download PDF

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Publication number
DK146136B
DK146136B DK103481A DK103481A DK146136B DK 146136 B DK146136 B DK 146136B DK 103481 A DK103481 A DK 103481A DK 103481 A DK103481 A DK 103481A DK 146136 B DK146136 B DK 146136B
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DK
Denmark
Prior art keywords
damper
frame
blades
frame members
rectangular
Prior art date
Application number
DK103481A
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Danish (da)
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DK103481A (en
DK146136C (en
Inventor
Tage Hougaard
Original Assignee
Nordisk Ventilator
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 Nordisk Ventilator filed Critical Nordisk Ventilator
Priority to DK103481A priority Critical patent/DK146136C/en
Priority to FI820763A priority patent/FI66247C/en
Priority to NO820707A priority patent/NO151023C/en
Priority to AT82301147T priority patent/ATE13349T1/en
Priority to EP82301147A priority patent/EP0060112B1/en
Priority to DE8282301147T priority patent/DE3263500D1/en
Publication of DK103481A publication Critical patent/DK103481A/en
Publication of DK146136B publication Critical patent/DK146136B/en
Application granted granted Critical
Publication of DK146136C publication Critical patent/DK146136C/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Air-Flow Control Members (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Glass Compositions (AREA)
  • Materials For Medical Uses (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Building Environments (AREA)

Abstract

In a ventilation damper assembly in which a number of wing-shaped rectangular damper blades (7) are rotatably positioned with parallel axes of rotation between opposite frame members (1) in a rectangular damper frame, lateral tightening at the frame members is obtained without using particular tightening means, by forming each frame member (1) with a substantially convex cross-sectional shape with the minimum distance between the frame members aligned with the bearings (13) for the journals (12) of the damper blades (7), while each damper blade (7) comprises end portions (11) with a curved edge portion (11a) facing the frame members (1).

Description

146136 i146136 i

Opfindelsen angår et ventilationsspjæld til montering i et kabinet/ en ventilationskanal eller en vægåbning og med et antal hovedsageligt rektangulære spjældblade med vingeformet tværsnitsprofil anbragt svingbart 5 med parallelle omdrejningsakser mellem modstående rammestykker i en hovedsageligt rektangulær spjældramme, og hvor nævnte modstående rammestykker er udformede med lejer for i spjældbladene fastgjorte akseltappe, som er i indgreb med en drivmekanisme, ved hjælp af hvilken spjæLd-10 bladene kan bevæges mellem en lukkestilling og en åbnestilling.BACKGROUND OF THE INVENTION This invention relates to a ventilation damper for mounting in a cabinet / ventilation duct or wall opening and having a plurality of substantially rectangular damper blades with wing-shaped cross-sectional profile arranged pivotally 5 with parallel rotational axes between opposite frame pieces with a substantially rectangular damper damper frame and shaft pins fixed to the damper blades which engage a drive mechanism by means of which the damper blades can be moved between a closing position and an open position.

Spjæld af denne art finder navnlig anvendelse som luftmængderegulerings- og afspærringsorganer og blandesp jæld ved indbygning i ventilationskanaler med rektan-15 gulært tværsnit eller i vægåbninger eller åbninger i side- eller endevægge af kabinetter, f.eks. for luftbehandlingscentraler i luftkonditioneringsanlæg. Udover en i tætningsmæssig henseende pålidelig lukkefunktion og en så vidt muligt slør- og støjfri bevægelse af spjældbla-20 dene tilstræbes for sådanne spjæld en enkel og robust udførelse med lavest mulige fremstillingsomkostninger.In particular, dampers of this kind are used as air flow control and shut-off means and mixing valves when installed in ventilation ducts of rectangular cross-section or in wall openings or openings in side or end walls of cabinets, e.g. for air conditioning centers in air conditioners. In addition to a sealingly reliable closing function and as far as possible blur and noise-free movement of the damper blades, for such dampers, a simple and robust design with the lowest possible manufacturing costs is sought.

Til opnåelse af tilstrækkelig tætning i lukkestillingen anvendes ved kendte spjæld af den nævnte art udover tætningslister ved de langsgående kanter af hvert 25 spjældblad sædvanligvis seerlige, til de nævnte rammestykker fastgjorte sidetætninger, således som det f.eks. er kendt fra tysk offentliggørelsesskrift nr. 2.342.531 og beskrivelsen til canadisk patent nr. 804.873, hvilket i betydelig grad komplicerer og fordyrer spjældkonstruk-3 0 tionen.In order to obtain sufficient sealing in the closing position, for known dampers of the said type, besides sealing strips at the longitudinal edges of each 25 damping blades, usually visible side seals affixed to said frame pieces are used, such as e.g. is known from German Patent Specification No. 2,342,531 and the specification to Canadian Patent No. 804,873, which considerably complicates and expensive damper construction.

Uden anvendelse af særlige tætningselementer opnås ved opfindelsen på enkel måde en for de fleste anvendelser tilstrækkeligt pålidelig sidetætning uden nævneværdig nedsættelse af spjældbladenes bevægelighed ved, at de 35 overfor hinanden liggende, mod spjældets gennemstrømningsareal vendende sider af nævnte rammestykker er udført med hovedsageligt konveks tværsnitsform med mindst afstand mellem rammestykkerne ud for lejerne for spjældbladenes 146136 2 akseltappe, og at hvert spjældblad har endestykker med en afrundet kantdel vendende mod rammestykkerne.Without the use of special sealing elements, the invention provides in a simple way a sufficiently reliable side seal for most applications without appreciably reducing the movement of the damper blades by the opposite sides of the damper flow area of said frame pieces having at least a convex cross-sectional shape spacing between the frame pieces next to the bearings for the shaft pins of the damper blades 146136 and that each damper blade has end pieces with a rounded edge portion facing the frame pieces.

Som følge af denne udførelse vil hvert spjældblad i lukkestillingen være i tæt anlæg mod rammestykkerne i de 5 nævnte endestykkers fulde udstrækning, medens der uden for lukkestillingen kun vil være i det væsentlige punktformet anlæg mellem spjældbladets endestykker og de to nævnte rammestykker med de to anlægspunkter beliggende diametralt modsat på hver sin side af lejer for spjæld-10 bladets akseltap. Under spjældbladets bevægelse følger disse anlægspunkter en cirkelbueformet bane omkring lejet.As a result of this embodiment, each damper blade in the closing position will be in close contact with the frame pieces in the full extent of the said end pieces, while outside the closing position there will be only substantially point-shaped abutment between the end pieces of the damper blade and the two mentioned frame pieces with the two abutment points. diametrically opposite on either side of bearings for the shaft-10 blade shaft. During the movement of the damper blade, these abutment points follow a circular arcuate path around the bearing.

Det hovedsageligt konvekse tværsnit kan ifølge opfindelsen være opnået ved, at rammestykkerne har svage 15 bukninger i forhold til en plan langs parallelle bukkelinier, der afgrænser en midterstrinmel med en bredde svarende til diameteren af lejerne for spjældbladenes akseltappe.The substantially convex cross section according to the invention can be obtained by having the frame pieces have weak bends relative to a plane along parallel bending lines defining a center step flour of a width corresponding to the diameter of the bearings of the shaft blades.

Forsøg har vist, at der ved opfindelsen i forbindelse med sædvanlige langsgående læbetætninger på spjæld-20 bladene opnås en lækagetæthed i lukkestillingen på højde med, hvad der opnås med separate sidetætninger på ramme-stykkerne.Tests have shown that in the invention, in connection with conventional longitudinal lip seals on the damper blades, a leakage density is obtained in the closing position at the same level as is achieved with separate side seals on the frame pieces.

Opfindelsen forklares i det følgende nærmere under henvisning til den skematiske tegning, hvor fig. 1 og 2 25 viser en udførelsesform for et ventilationsspjæld ifølge opfindelsen, set henholdsvis vinkelret på gennemstrømningsarealet og i perspektiv, medens fig. 3 og 4 viser to på hinanden vinkelrette længdesnit af den del af et spjældblad i spjældet i fig. 1 og 2, der ligger op til 30 et rammestykke i spjældrammen.The invention is explained in more detail below with reference to the schematic drawing, in which fig. Figures 1 and 2 show an embodiment of a ventilation damper according to the invention, viewed perpendicular to the flow area and in perspective respectively, while Figs. 3 and 4 show two longitudinal sectional views of the portion of a damper blade in the damper of FIG. 1 and 2, which is up to 30 a frame piece in the damper frame.

Det i fig. 1 og 2 viste spjæld er opbygget i en rektangulær, i det foreliggende tilfælde næsten kvadratisk spjældramme med rammestykker 1-4 af bukkede pladeprofiler med hovedsageligt fladt U-formet tværsnit, så-35 ledes at hvert rammestykke som vist ved 5 og 6 på rammestykket 1 har kantflanger til fastgørelse af spjældrammen enten til en ventilationskanal med samme gennemstrømningsareal og tværsnitsform, til en vægåbning eller 146136 3 til en åbning i en side- eller endevæg af et kabinet, f.eks. en centralenhed i et luftkonditioneringsanlæg, hvori der kan være anbragt en eller flere blæsere, luft-befugtere, filtre og/eller varmeplader.The FIG. 1 and 2 are constructed in a rectangular, in the present case, almost square damper frame with frame sections 1-4 of bent plate profiles with substantially flat U-shaped cross section, so that each frame piece as shown at 5 and 6 on the frame piece 1 has edge flanges for attaching the damper frame either to a ventilation duct having the same flow area and cross-sectional shape, to a wall opening or to an opening in a side or end wall of a cabinet, e.g. a central unit of an air conditioning system in which one or more fans, air humidifiers, filters and / or heating plates may be arranged.

5 I den viste udførelsesform er fire spjældblade 7-10 med vingeformet tværsnitsprofil anbragt svingbart i spjældrammen med parallelle omdrejningsakser mellem de to modstående siderammestykker 1 og 2, idet der i et endestykke 11 i hver ende af hvert spjældblad er op-10 taget en akseltap 12, som er lejret med glidepasning i en bøsning 13, der er oppresset i rammestykkets pladeemne, således som det er vist i fig. 3 og 4. Til udligning af pladedeformation omkring de oppressede bøsninger kan der i disse bøsninger anbringes foringer af et hårdt 15 plastmateriale, f.eks. nylon.In the illustrated embodiment, four damper blades 7-10 with wing-shaped cross-sectional profile are pivotally disposed in the damper frame with parallel axes of rotation between the two opposite side frame pieces 1 and 2, with a shaft pin 12 at each end 11 of each damper blade. , which is mounted with a sliding fit in a sleeve 13 which is pressed into the plate blank of the frame piece, as shown in FIG. 3 and 4. In order to offset plate deformation around the pressed bushes, bushings of a hard plastic material, e.g. nylon.

I fig. 1 og 2 er spjældbladene 7-10 vist i en midterstilling mellem en lukkestilling, i hvilken spjældbladene står på tværs af gennemstrømningsretningen og afspærrer gennemstrømningsarealet, og en åbnestilling, i 20 hvilken de står i det væsentlige parallelt med gennemstrømningsretningen .In FIG. 1 and 2, the damper blades 7-10 are shown in a center position between a closing position, in which the damper blades are transverse to the flow direction and blocking the flow area, and an open position in which they are substantially parallel to the flow direction.

Betjeningen af spjældbladene 7-10 sker ved hjælp af en til akseltappen 12 for det ene spjældblad 7 fastgjort arm 14, og spjældbladene 7-10 er bevægelses-25 mæssigt sammenkoblede over en drivmekanisme med en koblingsskinne 15, idet der til den ene akseltap for hvert spjældblad er fastgjort en bag koblingsskinnen 15 liggende svingarm 16, som er svingbart forbundet med koblingsskinnen 14.The operation of the damper blades 7-10 is effected by means of an arm 14 attached to the shaft pin 12 for the one damper blade 7 and the damper blades 7-10 are movably coupled over a drive mechanism with a coupling rail 15, to the one shaft pin for each damper blade is attached to a swing arm 16 lying behind the coupling rail 15 which is pivotally connected to the coupling rail 14.

30 Til opnåelse af sidetætning for spjældbladene 7-10 i spjældets lukkestilling er i overensstemmelse med opfindelsen de overfor hinanden liggende, mod gennemstrømningsarealet vendende sider af siderammestykkerne 1 og 3 som vist i fig. 3 udført med hovedsageligt konvekst tvær-35 snit med en mindste afstand mellem ramme s tykkerne 1 og 3 ud for lejebøsningerne 13 for spjældbladene 7-10's akseltappe 12, hvorhos spjældbladets endestykke 11 har en afrundet kantdel 11a vendende mod rammestykkerne.30 In order to obtain side sealing of the damper blades 7-10 in the closing position of the damper, in accordance with the invention, the opposite sides of the side frame pieces 1 and 3 as shown in FIG. 3, with substantially convex cross-sections, with a minimum distance between the frame thicknesses 1 and 3 next to the bearing bushes 13 for the shaft 12 of the damper blades 7-10, the end piece 11 of the damper blade having a rounded edge portion 11a facing the frame pieces.

4 146136 således som det bedst ses i fig. 4. I den viste udførelse er den hovedsageligt konvekse tværsnitsform opnået ved svag bukning af et plant rammeelement langs parallelle bukkelinier 17 og 18, der afgrænser et strimmelformet 5 midterparti med en bredde svarende til diameteren af de oppressede bøsninger 13.4 146136 as best seen in FIG. 4. In the embodiment shown, the substantially convex cross-sectional shape is obtained by weakly bending a planar frame member along parallel bending lines 17 and 18, defining a strip-shaped center portion of a width corresponding to the diameter of the pressed bushes 13.

I den i fig. 4 viste lukkestilling vil endestykkerne 11's afrundede kantdele 11a være i tæt anlæg mod midterpartiet af rammestykket 1 ud for lejebøsningerne 13, 10 således at der opnås en for de fleste anvendelser tilstrækkelig sikkerhed mod luftgennemgang mellem spjældbladene 7-10rs ender og rammestykkerne uden anvendelse af nogen form for særlige tætningsorganer.In the embodiment shown in FIG. 4, the rounded edge portions 11a of the end pieces 11a are in close contact with the center portion of the frame piece 1 next to the bearing bushings 13, 10 so that for most applications sufficient security is obtained against air passage between the ends of the damper blades 7-10rs and the frame pieces without using any form. for special sealing means.

Denne sidetætning, opnås samtidigt uden nogen væsent-15 lig nedsættelse af spjældbladenes bevægelighed, idet hvert spjældblad, så snart det er drejet en smule bort fra lukkestillingen, som vist i fig. 3 vil gå fri af rammestykket som følge af dettes konvekse tværsnitsform på størstedelen af endestykkets længde. Som følge af 20 endestykket 11's afrundede kantdel 11a vil der i det væsentlige kun være punktformede anlæg mellem endestykket 11 og rammestykket 1 i to anlægspunkter beliggende diametralt modsat på hver sin side af lejebøsningen 13. Onder spjældbladets bevægelse mellem lukkestil-25 lingen og åbnestillingen følger disse anlægspunkter en cirkelbueformet bane omkring lejebøsningen.This lateral seal is obtained simultaneously without any substantial reduction in the movement of the damper blades, as each damper blade, as soon as it is slightly turned away from the closing position, as shown in FIG. 3 will disengage from the frame piece due to its convex cross-sectional shape on most of the length of the end piece. As a result of the rounded edge portion 11a of the end piece 11, there will be essentially only dot-shaped abutments between the end piece 11 and the frame piece 1 at two abutment points located diametrically opposite on each side of the bearing bush 13. Under the damper blade movement between the closing position and the opening position, these follow abutment points a circular arcuate path around the bearing bush.

De ovenfor nævnte bukninger 17 og 18 til opnåelse af rammestykket l's hovedsageligt konvekse tværsnitsform kan for eksempel være udført således, at spillerum-30 met mellem rammestykket og spjældbladets endestykke 11 i åbnestillingen varierer fra tilnærmelsesvis 0 til 1-2 mm.For example, the above-mentioned bends 17 and 18 for obtaining the substantially convex cross-sectional shape of the frame piece 1 may be designed such that the clearance between the frame piece and the damper end piece 11 in the opening position varies from approximately 0 to 1-2 mm.

DK103481A 1981-03-06 1981-03-06 VENTILATING DAM WITH A NUMBER OF PARALLEL SURFACES AND AT THE TIME OF TURNED RECTANGULAR DAMBLES DK146136C (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DK103481A DK146136C (en) 1981-03-06 1981-03-06 VENTILATING DAM WITH A NUMBER OF PARALLEL SURFACES AND AT THE TIME OF TURNED RECTANGULAR DAMBLES
FI820763A FI66247C (en) 1981-03-06 1982-03-04 VENTILATIONSSPJAELL MED ETT ANTAL PARALLELT ANBRAGTA SAMTIDIGT VRIDBARA REKTANGULAERA SPJAELLBLAD
NO820707A NO151023C (en) 1981-03-06 1982-03-05 VENTILATION DAM WITH MULTIPLE PARALLELALLY ORGANIZED AND ATTENTION Pivotable Rectangular Damper Blades
AT82301147T ATE13349T1 (en) 1981-03-06 1982-03-05 A THrottling device for ventilation systems with a number of parallel and rotatable rectangular dampers.
EP82301147A EP0060112B1 (en) 1981-03-06 1982-03-05 A ventilation damper assembly with a number of parallel and rotatable rectangular damper blades
DE8282301147T DE3263500D1 (en) 1981-03-06 1982-03-05 A ventilation damper assembly with a number of parallel and rotatable rectangular damper blades

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK103481A DK146136C (en) 1981-03-06 1981-03-06 VENTILATING DAM WITH A NUMBER OF PARALLEL SURFACES AND AT THE TIME OF TURNED RECTANGULAR DAMBLES
DK103481 1981-03-06

Publications (3)

Publication Number Publication Date
DK103481A DK103481A (en) 1982-09-07
DK146136B true DK146136B (en) 1983-07-04
DK146136C DK146136C (en) 1983-11-28

Family

ID=8100249

Family Applications (1)

Application Number Title Priority Date Filing Date
DK103481A DK146136C (en) 1981-03-06 1981-03-06 VENTILATING DAM WITH A NUMBER OF PARALLEL SURFACES AND AT THE TIME OF TURNED RECTANGULAR DAMBLES

Country Status (6)

Country Link
EP (1) EP0060112B1 (en)
AT (1) ATE13349T1 (en)
DE (1) DE3263500D1 (en)
DK (1) DK146136C (en)
FI (1) FI66247C (en)
NO (1) NO151023C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8332651D0 (en) * 1983-12-07 1984-01-11 Haslam G G Fire damper
US8500528B2 (en) * 2008-11-06 2013-08-06 Don A. Leonhard Combination bearing, linkage pin and shaft coupling for a damper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1085492A (en) * 1965-06-04 1967-10-04 Metal Ind Ltd Improvements in adjustable louvres
US3783768A (en) * 1971-10-14 1974-01-08 Imp Damper Co Inc Damper assembly
GB2039361B (en) * 1978-11-22 1983-04-13 Actionair Equip Ventilating damper

Also Published As

Publication number Publication date
EP0060112A3 (en) 1983-01-26
DE3263500D1 (en) 1985-06-20
FI66247B (en) 1984-05-31
ATE13349T1 (en) 1985-06-15
EP0060112A2 (en) 1982-09-15
FI820763L (en) 1982-09-07
NO820707L (en) 1982-09-07
FI66247C (en) 1984-09-10
NO151023B (en) 1984-10-15
DK103481A (en) 1982-09-07
EP0060112B1 (en) 1985-05-15
NO151023C (en) 1985-01-23
DK146136C (en) 1983-11-28

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