US2195730A - Centrifugal separator - Google Patents

Centrifugal separator Download PDF

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Publication number
US2195730A
US2195730A US134196A US13419637A US2195730A US 2195730 A US2195730 A US 2195730A US 134196 A US134196 A US 134196A US 13419637 A US13419637 A US 13419637A US 2195730 A US2195730 A US 2195730A
Authority
US
United States
Prior art keywords
froth
bowl
channels
paring
liquid
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
US134196A
Other languages
English (en)
Inventor
Lindgren Hans Olof
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.)
De Laval Separator Co
Original Assignee
De Laval Separator 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 De Laval Separator Co filed Critical De Laval Separator Co
Application granted granted Critical
Publication of US2195730A publication Critical patent/US2195730A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
    • B04B11/082—Skimmers for discharging liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
    • B04B1/08—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2216—Shape, geometry
    • 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
    • F04D29/30—Vanes
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
    • F16K3/14—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces with special arrangements for separating the sealing faces or for pressing them together
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • F16K39/04—Devices for relieving the pressure on the sealing faces for sliding valves
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S494/00—Imperforate bowl: centrifugal separators
    • Y10S494/90—Imperforate bowl: centrifugal separators involving mixture containing one or more gases

Definitions

  • My'invention relates to centrifugal separators upper .part of a centrifugal bowl and the two dis- 7 of the type in which the two separated compocharge chambers.
  • Fig. 2 is a section through a nents of a liquid are discharged from the cenpart of one of the parers.
  • I trifugalbowl by means of stationary'disc-shaped In the neck 3 of the centrifugal bowl two disdischarge members or paring devices, concentriccharge chambers 4 and :8, for j skim milk and 5' with the bowls axis, and projecting respectively cream respectively, are arranged.”
  • the discharge into discharge chambers communicating respecchamber 8 which, in the ;.embodiment shown, is tively with the inner and outer separating zones arranged below the-discharge chamber 4, receives of the bowl.
  • the discharge chamber 4 receives separated skim 10 to a great extent with tubular or snail-like parers milk from a channel 1 communicating with the or Skimmers as well as in the open type of cenouter or peripheral .zone of the bowl. Extending trifuge unprovided with parers or Skimmers) is into chambers i and 8 are stationary disc-shaped largely prevented in centrifuges provided with parers or dischargemembers 5 and 9 respectively. '5 disc-shaped parers provided with peripheral in- In chamber 4 there" is a rotating mass of liquid lets, which lead out the liquids in more nearly having the cylindrical level 6. In chamber 8 foamless state.
  • the level of trifuges are used for the separation of certain which hasa somewhat smaller radius than the liquids, particularly cream and skim mi1k,'a par level 6 in chamber 4.
  • the chambers 4 and 8 tial re-mixing of the separated liquids may some-- are separated from each other by a radially pro- .20 times take place because of formation of froth jecting wall II which extends a considerable way when the stationary discharge member contacts inside said liquid levels. If the liquid in chamwith the rotating mass of liquid.
  • the specific her 8 is cream
  • gravity of the froth is considerably lower than not in the least degree leak over to the chamber that of the liquids
  • the'froth may deposititself :4.
  • the cream cannot 25 as a more or less heavy layer on the liquid levels leak over, since the wall i'i extends suliiciently inthe bowl.
  • the layer of froth may far inside the possible innermost position of the' become very thick and it may overflow the edge cream level.
  • the boundary wall between the two discharge froth may form in chamber 3 by the action of chambers, and then a partial 're-mixing will restationary member 9 upon the rotating cream 39 sult.
  • this mass, which froth deposits itself on the. liquid danger is avoided by," providing the discharge surface.
  • the amount of froth may possibly so member for the froth-producing component with increase that it will overflow theedge of the wall axial channels, crossing the outlet channels for- 1 H and get into the chamber 4.
  • the member .9 is provided with a number of (35 ing a substantial distance inside, the liquid level. nearly axially directed channels I8 through which Through these channels the froth is conducted the froth may flow off to the chamber in the away from the boundary wall to the other side bowl situated below the member 9, where it is of the discharge member.
  • the froth discharge distributed on the large liquid surface contained 40 channels should advantageously be provided with therein 'so that the air will gradually escape 40 I oblique edges which catch the rotating froth. therefrom.
  • the chamber 8 is provided with radimass. In this way a kind of pumping action is ally arranged ribs IS in order to'insure that both produced upon thefroth mass, andit may there- .the mass of liquid and any froth present are in fore be said that the froth is pumped over from the highest possible degree caused to follow the the boundary Wall to the other side of the disrotation of the bowl.
  • the froth mass is thereby 45 7 charge member.
  • a centrifugal separator comprising a rotatable bowl, means forming two discharge chambers adjacent each other and rotating with the bowl and communicating respectively with the outer and inner separating zones of the bowl,
  • said means including a partition closing one i chamber from the other except at the inner. ends,
  • said means comprising channels through the paring member in said froth-producing chamber, said channels being positioned nearer to the inner end than to the outer end of the paring member, the wall of each of the channels more distant from the axis of the bowl being, fromone end to the other, so much further from the center than the inner edge of said partition that substantially all froth accumulatinginside the level of liquid and on the side of the paring member facing the second of said chambers will be conveyed to the other side of the paring member.
  • a centrifugal separator comprising a rotatable bowl, means forming two discharge chambers adjacent each other and rotating with the bowl and communicating respectively with the outer and inner separating zones of the bowl, said means including a partition closing one chamber from the other except at the inner ends, disc-like paring devices within the respective chambers, and means to prevent froth formed in one of said discharge chambers from leaking to the other, said means comprising channels through the paring member in said froth-producing chamber, said channels being positioned nearer to the inner end than to the outer end of the paring member, the wall of each of the channels more distant from the axis of the bowl being, from one end to the other, substantially further from such axis than the inner edge of said partition and thereby adapted to convey froth, accumulating inside the level of liquid and on the side of the paring member facing the second of said chambers, to the other side of the paring member, said means comprising also a lip at the rearward side, in direction of rotation of the liquid, of each channel, said
  • a centrifugal separator comprising a rotatable bowl, means forming two discharge chambers adjacent each other and rotating with the bowl and communicating respectively with the outer and inner separating zones of the bowl, said means including a partition closing one chamber from the other except at the inner ends, disc-like paring devices within the respective chambers, and means to prevent froth formed in one of said discharge chambers from leaking to the other, said means comprising channels through the paring member in said froth-producing chamber, said channels being positioned nearer to the inner end than to the outer end of the paring member, the wall of each of the channels more distant from the axis of the bowl being, from one end to the'other, substantially further from such axis than the inner edge of said partition and thereby adapted to convey froth, accumulating inside the level of liquid and on the side of the paring member facing the second of said chambers, to the other side of the paring member, said channels extending obliquely in the direction of rotation from the side of the parer nearer the partition
  • a centrifugal separator comprising a rotatable bowl, means forming two discharge chambers adjacent each other and rotating with the bowl and communicating respectively with the outer and inner separating zones of the bowl, said means including a partition closing one chamber from the other except at the inner ends, disc-like paring devices Within the respective chambers, and means to prevent froth formed in oneof said discharge chambers from leaking to the other, said means comprising channels through the paring member in said froth-producing chamber, said channels being positioned nearer to the inner end than to the outer end of the paring member, the inner edges of the mouths of said channels opening into the froth-producing chamber being not substantially nearer the axis of the bowl than the inner edge of said partition so that substantially the entire areas of the mouths of said channels opening into the froth-producing chamber are further from said axis than the inner edge of said partition, said channels being thereby adapted to convey froth, accumulating inside the level of liquid on the side of the paring member facing said partition to the other side

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Centrifugal Separators (AREA)
US134196A 1936-04-04 1937-04-01 Centrifugal separator Expired - Lifetime US2195730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE480216X 1936-04-04

Publications (1)

Publication Number Publication Date
US2195730A true US2195730A (en) 1940-04-02

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ID=20310447

Family Applications (2)

Application Number Title Priority Date Filing Date
US2216442D Expired - Lifetime US2216442A (en) 1936-04-04 Centrifugal separator
US134196A Expired - Lifetime US2195730A (en) 1936-04-04 1937-04-01 Centrifugal separator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US2216442D Expired - Lifetime US2216442A (en) 1936-04-04 Centrifugal separator

Country Status (4)

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US (2) US2195730A (enrdf_load_html_response)
FR (1) FR819832A (enrdf_load_html_response)
GB (2) GB480216A (enrdf_load_html_response)
NL (2) NL81814C (enrdf_load_html_response)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765979A (en) * 1941-06-21 1956-10-09 Svenska Rotor Maskiner Ab Centrifuges for separating particles from gases
US3079133A (en) * 1957-05-22 1963-02-26 Westphalia Separator A G Device for the mixing and homogenizing of liquid compositions
EP1904747A4 (en) * 2005-07-19 2010-10-06 Davey Products Pty Ltd IMPROVED WHEEL ASSEMBLY AND PUMP
CN109630708A (zh) * 2018-11-29 2019-04-16 重庆秉为科技有限公司 一种微电子控制开关

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2461129A (en) * 1944-04-20 1949-02-08 Laval Separator Co De Centrifuge for the separation of serum from cheese constituents
US2535589A (en) * 1948-11-13 1950-12-26 Mills Engineering Company Oven door and window unit
SE418459B (sv) * 1979-09-05 1981-06-09 Alfa Laval Ab Centrifugalseparator
EP2914381B1 (en) 2012-11-05 2019-07-10 Haemonetics Corporation Continuous flow separation chamber
US11065376B2 (en) 2018-03-26 2021-07-20 Haemonetics Corporation Plasmapheresis centrifuge bowl

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765979A (en) * 1941-06-21 1956-10-09 Svenska Rotor Maskiner Ab Centrifuges for separating particles from gases
US3079133A (en) * 1957-05-22 1963-02-26 Westphalia Separator A G Device for the mixing and homogenizing of liquid compositions
EP1904747A4 (en) * 2005-07-19 2010-10-06 Davey Products Pty Ltd IMPROVED WHEEL ASSEMBLY AND PUMP
CN109630708A (zh) * 2018-11-29 2019-04-16 重庆秉为科技有限公司 一种微电子控制开关

Also Published As

Publication number Publication date
NL81814C (enrdf_load_html_response) 1900-01-01
US2216442A (en) 1940-10-01
FR819832A (fr) 1937-10-27
GB480216A (en) 1938-02-18
NL88411C (enrdf_load_html_response) 1900-01-01
GB466347A (en) 1937-05-26

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