MY111326A - A method and apparatus for minimising noise from fan filter unit - Google Patents

A method and apparatus for minimising noise from fan filter unit

Info

Publication number
MY111326A
MY111326A MYPI97006131A MYPI19976131A MY111326A MY 111326 A MY111326 A MY 111326A MY PI97006131 A MYPI97006131 A MY PI97006131A MY PI19976131 A MYPI19976131 A MY PI19976131A MY 111326 A MY111326 A MY 111326A
Authority
MY
Malaysia
Prior art keywords
filter unit
fan filter
present
fan
air drawn
Prior art date
Application number
MYPI97006131A
Inventor
Zong Tang Lee
Original Assignee
Kyodo Allied Ind Pte Ltd
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
Priority claimed from PCT/SG1997/000040 external-priority patent/WO1999011984A1/en
Application filed by Kyodo Allied Ind Pte Ltd filed Critical Kyodo Allied Ind Pte Ltd
Publication of MY111326A publication Critical patent/MY111326A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/165—Axial entry and discharge
    • 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
    • F04D29/4246—Fan casings comprising more than one outlet
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F7/007—Ventilation with forced flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Ventilation (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

THE PRESENT INVENTION IS A SYSTEM OF GEOMETRIC GUIDES AND BAFFLES FOR DIRECTING AND DIFFUSING THE EXTERNAL AIR DRAWN FROM A FAN BLOWER BEFORE DISTRIBUTING THE FLOW EVENLY TO THE OUTLET A FAN FILTER UNIT. THIS ARRANGEMENT NOT ONLY REDUCES THE TURBULENCE WITHIN A FAN FILTER UNIT ALSO MAINTAINS THE PARTICLE COUNT OF AIR DRAWN THROUGH THE SAME SYSTEM. FURTHERMORE, THE PRESENT INVENTION IS IMPLEMENTED IN DIMENSIONS A SUBSTANTIALLY SIMILAR TO THAT OF THE FAN BLOWER. AS SUCH, THE PRESENT INVENTION MINIMISES NOISE OF A FAN FILTER UNIT EVEN IN CONFINED CLEAN ROOM FACILITY.(FIG. 1)
MYPI97006131A 1997-09-03 1997-12-18 A method and apparatus for minimising noise from fan filter unit MY111326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG1997/000040 WO1999011984A1 (en) 1997-09-03 1997-09-03 A method and apparatus for minimising noise from fan filter unit

Publications (1)

Publication Number Publication Date
MY111326A true MY111326A (en) 1999-11-30

Family

ID=20429567

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI97006131A MY111326A (en) 1997-09-03 1997-12-18 A method and apparatus for minimising noise from fan filter unit

Country Status (6)

Country Link
EP (1) EP1378669A1 (en)
CN (1) CN100436836C (en)
CA (1) CA2302177A1 (en)
DE (1) DE69727322T2 (en)
MY (1) MY111326A (en)
TW (1) TW375760B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2426288B (en) * 2004-01-30 2008-07-09 Farmer Controls Plc Electric fan
TWI487558B (en) * 2012-08-03 2015-06-11 Ping Fa Hung Foam-type snow machine improved
WO2015100094A1 (en) * 2013-12-23 2015-07-02 3M Innovative Properties Company Curvilinear sound absorber
CN107795514B (en) * 2017-11-29 2024-03-26 莱克电气股份有限公司 Centrifugal fan with impeller structure
GB201808912D0 (en) * 2018-05-31 2018-07-18 Micromass Ltd Bench-top time of flight mass spectrometer
GB201808932D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Bench-top time of flight mass spectrometer
GB201808894D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Mass spectrometer
GB201808893D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Bench-top time of flight mass spectrometer
CN108386889B (en) * 2018-05-31 2024-03-08 广东美的厨房电器制造有限公司 grease pump
GB2602188B (en) 2018-05-31 2023-01-11 Micromass Ltd Mass spectrometer
GB201808949D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Bench-top time of flight mass spectrometer
CN113685373B (en) * 2020-05-19 2022-11-01 宁波方太厨具有限公司 Method for selecting air inlet ring of fan system
CN115111198B (en) * 2022-06-24 2024-05-07 大连海事大学 A recessed structure of a multi-blade centrifugal fan and a multi-blade centrifugal fan

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065684A (en) * 1958-05-22 1962-11-27 Cortland N O'day Air distributor
US4023472A (en) * 1974-06-04 1977-05-17 Ciba-Geigy Corporation Apparatus for producing a laminar flow
US4560395A (en) * 1984-04-17 1985-12-24 Environmental Air Control, Inc. Compact blower and filter assemblies for use in clean air environments
DE3438710C2 (en) * 1984-10-23 1986-11-27 Wilhelm Gebhardt Gmbh, 7112 Waldenburg Roof fan
EP1019659B1 (en) * 1997-09-03 2004-01-21 Kyodo-Allied Industries Limited A method and apparatus for minimising noise from fan filter unit

Also Published As

Publication number Publication date
CN1447031A (en) 2003-10-08
DE69727322D1 (en) 2004-02-26
DE69727322T2 (en) 2004-11-25
CN100436836C (en) 2008-11-26
HK1019629A1 (en) 2000-02-18
CA2302177A1 (en) 1999-03-11
EP1378669A1 (en) 2004-01-07
TW375760B (en) 1999-12-01

Similar Documents

Publication Publication Date Title
US6030186A (en) Method and apparatus for minimizing noise from fan filter unit
EP1146841B1 (en) Method and device for ventilating a so called clean room
US5160517A (en) System for purifying air in a room
TW375760B (en) Method and apparatus for minimizing noise from fan filter unit
TW290623B (en) Air conditioner
CA1252742A (en) Compact blower and filter assemblies for use in clean air environments
GB2352028A (en) Air rail
MY119037A (en) Dust separation apparatus
EP0619461A3 (en) Air handling structure and fan inlet and outlet.
MY121998A (en) Electrostatic air-cleaning apparatus
PL330551A1 (en) Apparatus for taking away heated air from a central processing unit of a microcomputer
CA2352011A1 (en) Air purifier
ES2170334T3 (en) INDOOR UNIT FOR AIR CONDITIONER DEVICE.
SE9401608L (en) Radiator
US20010043887A1 (en) High mass-flow rate air purifier
GB9421303D0 (en) Clean air system
EP0962720A3 (en) Ventilation structure of planarization chamber
US4717402A (en) Air purification system
MY123023A (en) Apparatus for minimising noise in a fan unit
KR100453851B1 (en) Method and device for minimizing noise of fan filter device
WO1989007739A1 (en) Air distribution unit
SE9400262L (en) Mobile unit for application of fluids such as paint on large surfaces
JPH04340042A (en) Device for purifying atmosphere of work table
JPS6138613A (en) Air purifying system
IL100922A0 (en) Apparatus for quantitatively controlling and directing air flow emanating from an air conditioning unit