WO2019117727A1 - Ensemble joint d'étanchéité - Google Patents

Ensemble joint d'étanchéité Download PDF

Info

Publication number
WO2019117727A1
WO2019117727A1 PCT/NO2018/050307 NO2018050307W WO2019117727A1 WO 2019117727 A1 WO2019117727 A1 WO 2019117727A1 NO 2018050307 W NO2018050307 W NO 2018050307W WO 2019117727 A1 WO2019117727 A1 WO 2019117727A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
gasket
conduit
assembly
chamber
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.)
Ceased
Application number
PCT/NO2018/050307
Other languages
English (en)
Inventor
Ivar HOVLAND
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.)
Covent AS
Original Assignee
Covent AS
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 Covent AS filed Critical Covent AS
Priority to EP18888944.8A priority Critical patent/EP3724539A4/fr
Publication of WO2019117727A1 publication Critical patent/WO2019117727A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
    • F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
    • F16J15/027—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity and with a hollow profile
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/04—Sealings between relatively-stationary surfaces without packing between the surfaces, e.g. with ground surfaces, with cutting edge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • F05D2300/431—Rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/501—Elasticity

Definitions

  • the invention relates to a gasket assembly for providing a channel for air to a fan arranged in a fan chamber. More particularly, the invention relates to a gasket assembly wherein the gasket is con figured to form a seal between the fan chamber and a conduit on the fan when the fan operates to suck air from an outside of the fan chamber, and the suction of air creates an under-pressure in the conduit which deforms the gasket.
  • a fan system arranged in a housing, wherein the fan system sucks air from out side the housing and ejects the air inside the housing.
  • the housing is sealed, such that the pres sure inside the housing will increase.
  • the housing comprises outlets connected to a system, such as a ventilation system, for distributing the air throughout e.g. a building. Because of the overpres sure created inside the housing, the air will be pressed out through the outlets and further into the system.
  • the fan sucks air in through an opening in the housing.
  • the connection between the open ing and the fan conduit must be sealed to avoid air from escaping or avoid that the fan sucks from inside the fan chamber.
  • this is usually done by means of a fabric connected to the conduit and housing by means of a bolted flange.
  • the bolted flange connection is time consuming to release if the fabric needs to be replaced or the fan needs to be taken out of the housing.
  • the seal between the fan and the housing must be flexi ble due to movements in the fan during operation.
  • the invention has for its object to remedy or to reduce at least one of the drawbacks of the prior art, or at least provide a useful alternative to prior art.
  • the invention relates to a gasket assembly for providing a channel for air to a fan arranged in a fan chamber, the fan being operable for suction of air from outside the fan chamber, wherein the fan chamber comprises an opening for enabling air to be supplied to the fan, the fan being provided with a conduit shaped and placed for guiding air from the opening towards the fan, wherein a gasket is arranged between an internal surface of the fan chamber and the conduit, the gasket encircling the opening, and wherein the gasket is configured for sealing a gap between the fan chamber and the conduit by deformation of the gasket as a result of an under-pressure in the conduit in operational use of the fan.
  • the invention solves the abovementioned challenges by providing a gasket between the conduit and the fan chamber which may seal the gap between the two when the fan is operating to suck air through the opening. Sealing is achieved by the under-pressure created inside the conduit as air is sucked towards the fan.
  • the gasket may be produced in a flexible material. Because of the under pressure, the shape of the gasket may change such that it is pressed against the surface opposite to the surface it is connected to, either the fan chamber or the conduit, and forming a seal. In stand-by mode, when the fan is not operating, the gasket returns to its initial shape and does not seal.
  • the invention enables the fan to be relocated relative to the fan chamber without having to release any bolts.
  • the gasket may be connected to the conduit or the fan chamber. In one embodiment, the gasket may be connected to a peripheral edge of the conduit. In one embodiment, the gasket may be con- nected to a peripheral edge of the opening on the fan chamber.
  • the gasket may be connected to the conduit or fan chamber by clamping means.
  • the gasket may be connected by clamping means to the peripheral edge of the conduit.
  • the gasket may be con nected by clamping means to the peripheral edge of the opening.
  • the clamping means may be threaded onto the peripheral edge of the conduit or the opening.
  • Clamping means may be a quick way to connect the gasket. Clamping means may also enable quick replacement of the gasket.
  • the clamping means may comprise an adhesive layer.
  • an inlet on the conduit may be parallel to an internal surface of the fan cham ber, the opening being arranged on the internal surface. Arranging the inlet parallel to the internal surface of the fan chamber may result in a uniform width of the gap between the internal surface and the conduit, increasing the likelihood of the gasket forming a tight seal.
  • the fan chamber may comprise braces for strengthening the fan chamber against the pressure differential between an inside and the outside of the fan chamber created by the fan when it is operating.
  • the braces may strengthen the fan chamber around the opening to withstand the under-pressure created in the conduit.
  • the gasket may comprise a rubber material. The rubber material may give the gasket sufficient flexibility to deform under influence of the under-pressure in the conduit.
  • the gasket may comprise additional materials, such as plastic or metal, for increased durability.
  • the invention in a second aspect, relates to a fan system comprising the seal assembly, a fan chamber and a fan assembly, the fan assembly comprising a motor, a fan and a conduit, wherein the fan assembly is arranged on a skidding system inside the fan chamber.
  • a skidding system may be tracks or guides for relocating the fan assembly.
  • the fan assembly may be pulled out of the fan chamber along the skidding system, for example during maintenance.
  • the gasket assembly ena bles the fan assembly to be pulled out of the fan chamber without having to release any bolts.
  • the fan system may comprise vibration dampers for restricting transfer of vi- brations from the fan assembly to the fan chamber when the fan is operating.
  • the vibration damp ers may be arranged between the skidding system and the fan assembly.
  • Fig. 1 shows the seal assembly according the one embodiment of the invention
  • Fig. 2 shows a cross section of the seal assembly in a larger scale than figure 1
  • Fig. 1 shows the seal assembly according the one embodiment of the invention
  • Fig. 2 shows a cross section of the seal assembly in a larger scale than figure 1
  • Fig. 3 shows the seal assembly in the same scale as figure 2, when the fan is operating to suck air through the opening in the fan chamber.
  • the reference numeral 1 indicates a gasket assembly 1 according to one embodiment of the invention.
  • Figure 1 shows a fan assembly 4 comprising a motor 7, a fan 8 and a conduit 3.
  • the fan assembly 4 is arranged in a fan chamber 5.
  • the fan assembly 4 is arranged on a frame 9 inside the fan chamber 5.
  • the frame 9 is connected to tracks 10 by means of vibration dampers 1 1 .
  • the vibration dampers 1 1 restrict transfer of vibrations from the fan assembly 4 to the fan chamber 5.
  • the fan assembly 4 may be relocated along the tracks 10.
  • the conduit 3 has an inlet 30 arranged close to an opening 6 in the fan chamber 5.
  • the opening 6 enables air to be supplied to the fan 8 from an outside 50 of the fan chamber 5.
  • a gasket 2 is con- nected to a periphery 31 (see figure 2) of the inlet 30 by a clamping means 20.
  • the gasket 2 envel ops the opening 6 in the fan chamber 5 to seal a gap 12 between the fan chamber 5 and the inlet 30 when the fan 8 is operating.
  • Figure 2 shows a cross section of a portion of the gasket assembly 1 .
  • the gasket 2 is arranged in the gap 12 between the fan chamber 5 and the inlet 30.
  • the gasket 2 is not in contact with an internal surface 500 of the fan chamber 5 when the fan 8 is not operating.
  • the gasket 2 may be in contact with the internal surface 500 when the fan 8 is not operating, but the contact pressure between the gasket 2 and the internal surface 500 may increase to seal the gap 30 when the fan 8 is operating.
  • the gasket 2 may be connected to a periphery 60 of the opening 6 and seal against a surface 300 of the inlet 30.
  • Figure 3 shows the same cross section of the portion of the gasket assembly 1 as in figure 2, when the fan 8 is operating.
  • a flow of air 100 (illustrated by arrows) is created from the outside 50 of the fan chamber 5, in through the opening 6 and through the conduit 3 to the fan 8.
  • the flow of air 100 creates an under-pressure in the conduit 3 that will act on the gasket 2.
  • the gasket 2 is made from a flexible material such that it elastically deforms because of the under-pressure. The deformation causes the gasket 2 to be pressed against the internal surface 500 of the fan chamber 5, and thus seal the gap 30 around the opening 6. It should be understood that the gasket 2 may have different embodiments and designs while still obtaining the same effect as mentioned above.
  • the gasket assembly 1 enables the fan assembly 4 to be relocated along the tracks 10 without having to release any bolts, as known from the prior art. This saves time during maintenance work.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention concerne un ensemble joint d'étanchéité (1) permettant de fournir un canal pour l'air (100) à un ventilateur (8) disposé dans une chambre de ventilateur (5), le ventilateur (8) ayant pour fonction d'aspirer de l'air (100) depuis l'extérieur (50) de la chambre de ventilateur (5), la chambre de ventilateur (5) comprenant une ouverture (6) pour permettre l'alimentation en air du ventilateur (8), le ventilateur (8) étant pourvu d'un conduit (3) formé et placé pour guider l'air (100) depuis l'ouverture (6) vers le ventilateur (8), un joint d'étanchéité (2) étant disposé entre une surface interne (500) de la chambre de ventilateur (5) et le conduit (3), le joint d'étanchéité (2) encerclant l'ouverture (6), et le joint d'étanchéité (2) étant configuré pour sceller un espace (12) entre la chambre de ventilateur (5) et le conduit (3) par déformation du joint d'étanchéité (2) suite à une sous-pression dans le conduit (3) lors de l'utilisation opérationnelle du ventilateur (8).
PCT/NO2018/050307 2017-12-13 2018-12-07 Ensemble joint d'étanchéité Ceased WO2019117727A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18888944.8A EP3724539A4 (fr) 2017-12-13 2018-12-07 Ensemble joint d'étanchéité

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20171992 2017-12-13
NO20171992A NO344034B1 (en) 2017-12-13 2017-12-13 Gasket assembly

Publications (1)

Publication Number Publication Date
WO2019117727A1 true WO2019117727A1 (fr) 2019-06-20

Family

ID=66820517

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2018/050307 Ceased WO2019117727A1 (fr) 2017-12-13 2018-12-07 Ensemble joint d'étanchéité

Country Status (3)

Country Link
EP (1) EP3724539A4 (fr)
NO (1) NO344034B1 (fr)
WO (1) WO2019117727A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0847827A (ja) * 1994-08-03 1996-02-20 Toray Ind Inc リング状パッキンの自動装着機
US5538406A (en) * 1994-03-02 1996-07-23 Johnson Pumps Of America, Inc. Removable cartridge-type pump for live well bait tanks in sport fishing boats
JP2005131967A (ja) * 2003-10-30 2005-05-26 Sumitomo Metal Plantec Co Ltd 熱収縮チューブ加熱装置のシール方法
GB2436353A (en) * 2006-03-22 2007-09-26 Rolls Royce Plc A panel assembly including a deformable seal
EP2078864A1 (fr) * 2008-01-11 2009-07-15 MAICO ELEKTROAPPARATE-FABRIK GmbH Ventilateur à tube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5566954A (en) * 1993-11-08 1996-10-22 Hahn Elastomer Corporation Fan shroud attached air deflecting seal
SE511657C2 (sv) * 1997-02-21 1999-11-01 Scania Cv Ab Fläktringstätning
KR100617462B1 (ko) * 1999-12-30 2006-09-01 한라공조주식회사 팬쉬라우드
FR2951248B1 (fr) * 2009-10-14 2012-03-09 France Air Caisson d'extraction d'air et procede de controle du caisson
ITFI20120046A1 (it) * 2012-03-08 2013-09-09 Nuovo Pignone Srl "device and method for gas turbine unlocking"
US10301956B2 (en) * 2014-09-25 2019-05-28 United Technologies Corporation Seal assembly for sealing an axial gap between components

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5538406A (en) * 1994-03-02 1996-07-23 Johnson Pumps Of America, Inc. Removable cartridge-type pump for live well bait tanks in sport fishing boats
JPH0847827A (ja) * 1994-08-03 1996-02-20 Toray Ind Inc リング状パッキンの自動装着機
JP2005131967A (ja) * 2003-10-30 2005-05-26 Sumitomo Metal Plantec Co Ltd 熱収縮チューブ加熱装置のシール方法
GB2436353A (en) * 2006-03-22 2007-09-26 Rolls Royce Plc A panel assembly including a deformable seal
EP2078864A1 (fr) * 2008-01-11 2009-07-15 MAICO ELEKTROAPPARATE-FABRIK GmbH Ventilateur à tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3724539A4 *

Also Published As

Publication number Publication date
EP3724539A1 (fr) 2020-10-21
NO344034B1 (en) 2019-08-19
NO20171992A1 (en) 2019-06-14
EP3724539A4 (fr) 2021-08-04

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