US3847065A - Ventilation system - Google Patents

Ventilation system Download PDF

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Publication number
US3847065A
US3847065A US00367906A US36790673A US3847065A US 3847065 A US3847065 A US 3847065A US 00367906 A US00367906 A US 00367906A US 36790673 A US36790673 A US 36790673A US 3847065 A US3847065 A US 3847065A
Authority
US
United States
Prior art keywords
plate
duct
ducts
damper
coating
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
US00367906A
Other languages
English (en)
Inventor
P Christiansen
J Holt
C Videmark
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.)
Novenco Building and Industry AS
Original Assignee
Nordisk Ventilator Co
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 Co filed Critical Nordisk Ventilator Co
Application granted granted Critical
Publication of US3847065A publication Critical patent/US3847065A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
    • A01K1/0058—Construction of air inlets or outlets in roofs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/70—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in livestock or poultry
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/70—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in livestock or poultry
    • Y02A40/76—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in livestock or poultry using renewable energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/50—Livestock or poultry management

Definitions

  • a ventilation system comprising ducts for injecting air [2l] Appl. No.: 367,906 into and exhausting air from a room, said ducts being separated by a partition incorporating an opening between the ducts in which a heat conducting damper [30] Forelgn Apphcatmn Pnomy Data plate, both surfaces of which are provided with coat- June 9, 1972 Denmark 2914/72 ings of an insulating material, is movably arranged to adjust the ventilation.
  • the insulating coating of the [52] US, Cl. 98/33, 98/41 surface facing the injected air l covers the plate [5 l] Int.
  • FIG. 1 11v 6 7 I/ a IIIIIIIIIIIA FIG. 1
  • the present invention relates to a ventilation system comprising a duct for the injection of fresh air and a duct for the exhaustion of air from a ventilated room, said ducts extending at least on part of their length side by side separated by a common flat partition which incorporates an opening between the ducts, in which a damper member is arranged to be movable between two extreme positions, in one of which it closes said opening and in the other of which positions it blocks both ducts and opens up for complete recirculation of air exhausted from the room back to the room through the injection duct.
  • Ventilation systems of this kind are used, for example, in the ventilation of stables or barns and as a result of the movable damper member it is possible to adjust the ventilation in dependence on the temperature conditions in the room between full supply of fresh air and complete recirculation of return air from the ventilated room.
  • a duct for the injection of fresh air and a duct for the exhaustion of air from a ventilated room said ducts extending at least on part of their length side by side, a common flat partition separating said ducts on said part of their length and incorporating an opening between said ducts and a damper member which is arranged in said opening to be movable be-' tween two extreme position in one of which it .closes said opening and in the other of which it blocks both ducts and opens up for complete recirculation of air exhausted from the room back to the room through the injection duct, said damper member consisting of a damper plate of a material of high heat conductivity and coatings of insulating material applied to both surfaces of said plate, the coating on the surface facing the injected air flow covering said plate completely absent from an area along the peripheral edge of the part of the damper plate located in the injection duct and the coating on the opposite surface of said damper plate covering said part of the plate located in the injection duct right
  • the heat conducting damper plate which may be of aluminium, is free from insulating material on the surface of the part of the plate located in the exhaust duct, which in the recirculation position of the damper member faces the ventilated room, so that said surface is directly contacted by the hot return air passing up through the exhaustduct.
  • the heat thereby applied to the damper plate is conveyed through the heat conducting material of said plate to the other area of the plate which is free from insulating material, i.e., the extreme peripheral area of the surface of the part of the plate located in the injection duct which faces the injected air flow, i.e., the cold ambient air.
  • the latter area of the damper plate at which a particularly great risk of ice formation exists will attain a higher temperature, so that this risk is materially reduced.
  • FIG. 1 shows an embodiment of a ventilation system according to the invention
  • FIG. 2 is a cross-sectional view of a damper member used in the system shown in FIG. 1,
  • FIG. 3 shows the damper member shown in FIG. 2 seen from the upper side
  • FIG. 4 shows the damper member seen from the lower side.
  • FIG. 1 shows a ventilation system of the kind described in copending U.S. Pat. application Ser. No. 268,955 filed July 5, 1972 in the names of Jorgen Holt and Hans Christian Hansen.
  • a fan section 2 is arranged comprising an axial flow fan having two me chanically interconnected sets of fan blades of opposite directions of flow, said blade sets being located in a central ventilation duct and a surrounding annular duct, respectively.
  • a fan of this construction is described in U.S. Pat. No. 3,487,767 to S. H. Kristiansen.
  • connection section 3 The two concentric ventilation ducts of the axial flow fan is connected through a connection section 3, the detailed construction of which is described in the above-mentioned patent application Ser. No. 268,955, with a twin-duct designated as a whole by the reference numeral 4 and comprising two substantially semicylindrical ducts 6 and 7 connected to the central duct and the outer annular duct of the axial flow fan, respectively, and being separated by a common flat partition 5.
  • the twinduct 4 extends from the ventilated room 1 through the over-lying part of the building and terminates above the roof 8 thereof in a roof hood 9, which is designed with separate air passages for connecting the ducts 6 and 7, respectively, with the ambient air.
  • the partition has an opening in which a control damper member 10 is arranged, said damper member being movable between two extreme positions in one of which the opening in the partition is closed, so that a complete supply of fresh air to room 1 is obtained, whereas in the other extremc position the damper member extends transversely of the ducts 6 and 7, whereby the supply of fresh air is blocked and complete recirculation of the exhaust air from duct 6 to duct 7 is established, such as described in the above-mentioned patent application Ser. No. 268,955.
  • twinduct 4 of the embodiment shown consists of a number of shorter duct sections 11, 12, 13 and 14 which only after arrival at the place of installation is assembled in extension of each other to form the complete twinduct.
  • FIGS. 2 to 4 of the drawings show the damper member 10 arranged in duct section 13 in a cross-sectional view and seen from the upper side and the lower side, respectively.
  • the damper member 10 consists of a damper plate 15 of a material of high heat conductivity such as, for example, aluminium, said plate being provided on both sides with coatings of an insulating material 16 and 17, respectively.
  • the coating 16 on the side ofdamper plate 15 facing the injected air flow i.e., the side which in the injection duct 7 is contacted by the air supplied from the ambient, covers damper plate 15 completely absent from an area 18 along the extreme peripheral edge of that part of the damper plate, which is located in injection duct 7.
  • the coating 17 on the opposite side of damper plate 15 which faces the ventilated room 1 covers only the part of the damper plate located in injection duct 7, but extends right to the peripheral edge of that part.
  • the part of the latter side of the damper plate which is located in the exhaust duct 6 is completely free from the coating of insulating material, and in the embodiment shown the coating 17 is furthermore, such as shown in H6. 4, designed so as to cover only a substantially half-moon-shaped area of the part of the plate located in injection duct 7.
  • the hot, moist return air in the exhaust duct will, in the position shown of damper member 10, contact the exposed area of the heat conducting damper plate 15.
  • the heat thereby applied to damper plate 15 will be conveyed to the exposed peripheral area 18 of the surface of the part of the damper plate located in injection duct 7, which faces the injected air flow, so 7 that this peripheral area which possesses the greatest risk of water condensation and ice formation attains a relatively high temperature, whereby said risk is materially reduced.
  • a ventilation system comprising a duct for the injection of fresh air and a duct for the exhaustion of air from a ventilated room, said ducts extending at least on part of their length side by side, a common flat partition separating said ducts on said part of their length and incorporation an opening between said ducts and a damper member which is arranged in said opening to be movable between two extreme position in one of which it closes said opening and in the other of which it blocks both ducts and opens up for complete recirculation of air exhausted from the room back to the room through the injection duct, said damper member consisting of a damper plate of a material of high heat conductivity and coatings of insulating material applied to both surfaces ofv said plate, the coating on the surface facing the injected air flow covering said plate completely absent from an area along the peripheral edge of the part of the damper plate located in the injection duct and the coating on the opposite surface of said damper plate covering said part of the plate located in the injection duct right to said peripheral edge and leaving the

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Combustion & Propulsion (AREA)
  • Duct Arrangements (AREA)
  • Lift Valve (AREA)
  • Air-Flow Control Members (AREA)
US00367906A 1972-06-09 1973-06-07 Ventilation system Expired - Lifetime US3847065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK291472AA DK138464B (da) 1972-06-09 1972-06-09 Ventilationsanlæg med et indstilleligt spjæld til regulering af en recirkulationsåbning mellem en indsugningskanal og en udsugningskanal.

Publications (1)

Publication Number Publication Date
US3847065A true US3847065A (en) 1974-11-12

Family

ID=8117063

Family Applications (1)

Application Number Title Priority Date Filing Date
US00367906A Expired - Lifetime US3847065A (en) 1972-06-09 1973-06-07 Ventilation system

Country Status (11)

Country Link
US (1) US3847065A (fr)
CA (1) CA962511A (fr)
DD (1) DD104353A5 (fr)
DE (1) DE2329109C2 (fr)
DK (1) DK138464B (fr)
FR (1) FR2188114B1 (fr)
GB (1) GB1407379A (fr)
HU (1) HU173258B (fr)
IT (1) IT985531B (fr)
NL (1) NL7308038A (fr)
SE (1) SE389727B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526318A (en) * 1984-06-11 1985-07-02 Stephen T. McGill Proportional fluid exchanger and recirculator
US20080057852A1 (en) * 2006-08-11 2008-03-06 Earl Richardson Vertically operational barometric air reclaimer unit and use thereof
EP2194329A1 (fr) * 2008-12-08 2010-06-09 LTG Aktiengesellschaft Appareil de ventilation ainsi que procédé de fonctionnement de l'appareil de ventilation
EP2361499A3 (fr) * 2010-02-26 2015-11-04 Big Dutchman International GmbH Cheminée d'amenée d'air destinée à des écuries pour bétail

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8704411D0 (en) * 1987-02-25 1987-04-01 Gen Electric Co Plc Cabinet
DE29611515U1 (de) * 1996-07-02 1996-09-05 Siegenia-Frank Kg, 57074 Siegen Umluft-Betriebsvorrichtung für ein Zwangslüftungsgerät
SE523865C2 (sv) 2000-05-02 2004-05-25 Bengt Steneby Ventilationsapparat för zonvis ventilation innefattande värmeväxlare för till- och frånluft samt sensorer för att bestämma luftflödenas relativa hastighetsavvikelse i resp kanal
FR3014172B1 (fr) * 2013-12-02 2018-04-20 Scabe Innovations Gaine aeraulique destinee a la climatisation de l'air dans un batiment d'elevage et batiment d'elevage pourvu d'une telle gaine aeraulique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732027A (en) * 1950-12-13 1956-01-24 Svenska Flaektfabriken Ab Ventilating apparatus with heat
US3122307A (en) * 1961-08-08 1964-02-25 Clarage Fan Company Fan equipment
US3463391A (en) * 1967-04-26 1969-08-26 Big Dutchman Intern Ag Air duct assembly,particularly for a stable or the like
US3487767A (en) * 1967-01-30 1970-01-06 Nordisk Ventilator Fan for the ventilation of buildings,e.g.,stables
US3750557A (en) * 1970-11-16 1973-08-07 Nordisk Ventilator System for the ventilation of buildings

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732027A (en) * 1950-12-13 1956-01-24 Svenska Flaektfabriken Ab Ventilating apparatus with heat
US3122307A (en) * 1961-08-08 1964-02-25 Clarage Fan Company Fan equipment
US3487767A (en) * 1967-01-30 1970-01-06 Nordisk Ventilator Fan for the ventilation of buildings,e.g.,stables
US3463391A (en) * 1967-04-26 1969-08-26 Big Dutchman Intern Ag Air duct assembly,particularly for a stable or the like
US3750557A (en) * 1970-11-16 1973-08-07 Nordisk Ventilator System for the ventilation of buildings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526318A (en) * 1984-06-11 1985-07-02 Stephen T. McGill Proportional fluid exchanger and recirculator
US20080057852A1 (en) * 2006-08-11 2008-03-06 Earl Richardson Vertically operational barometric air reclaimer unit and use thereof
EP2194329A1 (fr) * 2008-12-08 2010-06-09 LTG Aktiengesellschaft Appareil de ventilation ainsi que procédé de fonctionnement de l'appareil de ventilation
EP2361499A3 (fr) * 2010-02-26 2015-11-04 Big Dutchman International GmbH Cheminée d'amenée d'air destinée à des écuries pour bétail

Also Published As

Publication number Publication date
NL7308038A (fr) 1973-12-11
GB1407379A (en) 1975-09-24
HU173258B (hu) 1979-03-28
FR2188114A1 (fr) 1974-01-18
DK138464C (fr) 1979-02-19
SE389727B (sv) 1976-11-15
IT985531B (it) 1974-12-10
DE2329109A1 (de) 1973-12-20
DE2329109C2 (de) 1982-12-02
CA962511A (en) 1975-02-11
DD104353A5 (fr) 1974-03-05
DK138464B (da) 1978-09-11
FR2188114B1 (fr) 1976-11-12

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