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GB803422A - Radial flow blower for conveying gases with a high dust content - Google Patents

Radial flow blower for conveying gases with a high dust content

Info

Publication number
GB803422A
GB803422A GB2362/55A GB236255A GB803422A GB 803422 A GB803422 A GB 803422A GB 2362/55 A GB2362/55 A GB 2362/55A GB 236255 A GB236255 A GB 236255A GB 803422 A GB803422 A GB 803422A
Authority
GB
United Kingdom
Prior art keywords
rotor
angle
blades
inner diameter
ratio
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
Application number
GB2362/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB803422A publication Critical patent/GB803422A/en
Expired legal-status Critical Current

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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/289—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps having provision against erosion or for dust-separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/001—Pumps adapted for conveying materials or for handling specific elastic fluids
    • F04D23/003—Pumps adapted for conveying materials or for handling specific elastic fluids of radial-flow type
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
    • F04D29/464—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
    • 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
    • F05D2260/00—Function
    • F05D2260/14—Preswirling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

803,422. Centrifugal blowers. ECK, B. Jan. 26, 1955 [Jan. 27, 1954], No. 2362/55. Class 110 (1) In a radial-flow blower suitable for conveying gases having a high dust content, the blade angle is substantially the same at all points and greater than 38 degrees with respect to the periphery of the rotor, and a device for imparting a substantial whirl in an assisting direction is arranged on the input side of the rotor. The angle of the blades of the rotor 1, Fig. 1 of a blower with respect to the tangential direction is greater than the angle of friction (about 38-40 degrees) of the industrial dust contained in the air, to prevent adherence of the dust to the blades. Similarly, the curved entry part of the shroud 11 subtends, with respect to the blower axis, an angle greater than the angle of friction. For optimum efficiency, the ratio of the radius of curvature r of the shroud 11 to the inner diameter d1 of the rotor lies between 1/10 and 1/6; the ratio of the rotor width b1 to the inner diameter d1 lies between 1/3.6 and 1/2.8; and the ratio between the inner diameter d1 and the outer diameter d2 is greater than 0.55-0.6. Regulation can be provided by an adjustable plate 5 with, it may be, a simultaneous adjustment of guide blades. The guide blades may be twisted or resiliently deformed. Alternatively, the guide blades 6, Fig. 3, may be carried by an axially movable member 7. Compressed air may be returned from the volute to the suction passage by way of an annular channel 8, Fig. 4, having one or more flap valves 9, 10 which can be opened to direct the air tangentially into the suction passage, thereby imparting whirl to the incoming air.
GB2362/55A 1954-01-27 1955-01-26 Radial flow blower for conveying gases with a high dust content Expired GB803422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE8491A DE1204774B (en) 1954-01-27 1954-01-27 Radial blower for conveying very dusty gases

Publications (1)

Publication Number Publication Date
GB803422A true GB803422A (en) 1958-10-22

Family

ID=7067416

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2362/55A Expired GB803422A (en) 1954-01-27 1955-01-26 Radial flow blower for conveying gases with a high dust content

Country Status (3)

Country Link
DE (1) DE1204774B (en)
GB (1) GB803422A (en)
NL (1) NL194295A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041848A (en) * 1959-06-01 1962-07-03 Garrett Corp Variable head compressor
GB2119440A (en) * 1982-04-28 1983-11-16 Blackman Keith Ltd Centrifugal fans
GB2165888A (en) * 1984-10-10 1986-04-23 Do Politekh Inst Air swirl systems for fans
US5827044A (en) * 1997-03-26 1998-10-27 Yazici; Muammer Fan system with variable air volume control

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3924281A1 (en) * 1989-07-22 1991-01-31 Standard Elektrik Lorenz Ag DEVICE FOR CONVEYING A GASEOUS MEDIUM
KR100550529B1 (en) 2003-12-30 2006-02-10 엘지전자 주식회사 Centrifugal fan of a refrigerator
DE102012211250A1 (en) * 2012-06-29 2014-01-02 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner fan and vacuum cleaner with a vacuum cleaner fan

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE713583C (en) * 1937-04-20 1941-11-13 Verwertungsgesellschaft Dr Ing Control for centrifugal blower
DE879588C (en) * 1951-07-22 1953-06-15 Babcock & Wilcox Dampfkessel W Blower for dusty gases

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041848A (en) * 1959-06-01 1962-07-03 Garrett Corp Variable head compressor
GB2119440A (en) * 1982-04-28 1983-11-16 Blackman Keith Ltd Centrifugal fans
GB2165888A (en) * 1984-10-10 1986-04-23 Do Politekh Inst Air swirl systems for fans
US5827044A (en) * 1997-03-26 1998-10-27 Yazici; Muammer Fan system with variable air volume control

Also Published As

Publication number Publication date
DE1204774B (en) 1965-11-11
NL194295A (en) 1961-03-15

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