GB1582898A - Jet pump or mixer and jet means therefor - Google Patents

Jet pump or mixer and jet means therefor Download PDF

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Publication number
GB1582898A
GB1582898A GB32796/76A GB3279676A GB1582898A GB 1582898 A GB1582898 A GB 1582898A GB 32796/76 A GB32796/76 A GB 32796/76A GB 3279676 A GB3279676 A GB 3279676A GB 1582898 A GB1582898 A GB 1582898A
Authority
GB
United Kingdom
Prior art keywords
jet
pump
mixer
inlets
matrix
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
GB32796/76A
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.)
KAMELMACHER E
Original Assignee
KAMELMACHER E
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 KAMELMACHER E filed Critical KAMELMACHER E
Priority to GB32796/76A priority Critical patent/GB1582898A/en
Publication of GB1582898A publication Critical patent/GB1582898A/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
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/466—Arrangements of nozzles with a plurality of nozzles arranged in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3121—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/48—Control

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Jet Pumps And Other Pumps (AREA)

Description

(54) JET PUMP OR MIXER AND JET MEANS THEREFOR (71) We, EDUARD KAMEL MACHER, of 77 Lionel Road, Brentford, Middlesex, of Israeli nationality, and LEONARD SMITH, of 8 Brook Lane, Bexley, Kent, a British subject, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: The present invention relates to a pump or mixer and jet means therefor.
The properties of the ejector or jet-pump are well known - as a mlxing or pumping device for gas-gas, gas-liquid and liquidliquid mass transfer systems. Such a pump has, however, certain disadvantages, which are as follows: (a) large single nozzle jet-pumps for large flows require a correspondingly long diffuser section, making installation difficult and the cost high; (b) control of jet-pumps by modulation of the driving medium is not possible; (c) - the prediction of the performance of jet-pump mixers of varying sizes by a model law analysis is extremely difficult as the shear forces decrease with increase in size, thereby requiring an increase in velocity and power for a given mixing effect.
The invention provides jet means, for use in a pump or mixer, comprising an inlet matrix in the form of a plate having a plurality of spaced inlets leading to a chamber, a diffuser matrix in the form of a plate having a plurality of tubular outlet members leading from the chamber and arranged downstream of the inlets, each outlet member having a diffuser portion diverging in a downstream direction and means for blocking off successively one or more of the inlets and associated outlet members.
The nozzles may be arranged in any suitable manner, e.g. in rows or in concentric circles.
The invention further provides a pump or mixer provided with jet means as described above.
The blocking means may be in the form of a rotatable or slidable plate or plates.
Two embodiments of the invention will now be described by way of example only with reference to the accompanying drawing, wherein: Figure 1 is a sectional view of a first embodiment of a pump according to the invention, Figure 2 is a view in the direction of arrow A of Figure 1, Figure 3 is a sectional view taken along the line B - B of Figure 1, Figure 4 is a sectional view of a second embodiment of a pump or mixer according to the invention, Figure 5 is a sectional view taken along the line C-C of Figure 4, Figure 6 is an enlarged view of part of the matrix of Figure 1, and Figure 7 is an enlarged view of part of the matrix of Figure 4.
In Figure 1 a pump or mixer comprises a casing 1 having a radial inlet 2 for driving media and an inlet 3 for driven media. The casing 1 is connected to a discharge chamber 4.
A multi-jet matrix arranged in the casing comprises an inlet matrix 5 leading into a matrix chamber 7, and a diffuser matrix 6 leading from the chamber 7. The inlet 3 opens directly into the matrix chamber 7.
The matrices 5, 6 each comprise a support plate 8, 9, provided with a plurality of inlets 10 and tubular outlets 11, respectively, each inlet 10 being axially-aligned with, but axially-spaced from, the corresponding tubular outlet 11. Each tubular outlet 11 is in the form of a Venturi; and has a diffuser portion 11 which diverges in a downstream direction.
The inlet matrix 5 and diffuser matrix 6 are provided with segment plates 12 and 13 respectively, mounted on a shaft 14 rotatably mounted in a seal 15 and passing through the matrices 5, 6. The lower end of the shaft 14 is provided with a spring 16. By rotating the shaft 14 it is possible to block off more or less of the inlets 10 and the associated tubular outlets 11 so as to control the throughput through the multi-jet matrix, e.g. so as to maintain a constant velocity through the pump.
The pump of Figures 1 to 3 may be used as a jet pump or as a mixer for gas-gas, gas-liquid, or liquid-liquid.
The pump of Figures 4 and 5 is similar to that of Figures 1 to 3 except that the inlet 2 is axial and the inlets and tubular outlets are arranged in parallel rows 16 (Figure 5), and are blocked off by means of a single slidable plate 17 arranged between the inlets 10 and the tubular outlets 11, and having a plurality of fingers 18 aligned with the rows 16'. The plate 17 may be moved in any suitable manner, e.g. by means of a slidable control rod 19.
Clearly the rotatable segment plates 12, 13 of the embodiment of Figures 1 to 3 could be replaced by two slidable plates, or by a single slidable plate between the two matrices 5, 6. Similarly, the single slidable plate 17 of the embodiment of Figures 4 and 5 could be replaced by a rotatable plate, or two slidable or rotatable plates.
Figures 6 and 7 show two different ways of forming the matrices 5, 6. In Figure 6, the inlets 10 and tubular outlets 11 are integral with the material of the plates 8, 9 and may, e.g. be formed from plastics, e.g. by moulding. In Figure 7 the inlets 10 and tubular outlets 11 are formed on separate inserts from the plates 8, 9 which have respective apertures 20, 21.
WHAT WE CLAIM IS: 1. Jet means, for use in a pump or mixer, comprising an inlet -matrix in the form of a plate having a plurality of spaced inlets leading to a chamber, a diffuser matrix in the form of a plate having a plurality of tubular outlet members leading from the chamber and arranged downstream of the inlets, each outlet member having a diffuser portion diverging in a downstream direction and means for blocking off successively one or more of the inlets and associated outlet members.
2. Jet means as claimed in claim 1, wherein each inlet is axially-aligned with each outlet member.
3. Jet means as claimed in claim 1 or 2, wherein the inlets and outlet members are arranged in rows.
4. Jet means as claimed in claim 1 or 2, wherein the inlet and outlet members are arranged in concentric circles.
5. Jet means as claimed in any one of the preceding claims wherein the inlets and/or the tubular outlets are integrally formed in respective plates.
6. Jet means as claimed in any one of claims 1 to 4, wherein the inlets and/or the tubular outlets are formed as separate inserts in respective plates.
7. Jet means as claimed in any one of the preceding claims, wherein the blocking means comprises one or more slidable plates.
8. Jet means as claimed in any one of the preceding claims 1 to 6, wherein the blocking means comprises one or more rotatable plates.
9. Jet means substantially as herein described with reference to Figures 6 or 7 of the accompanying drawings.
10. A pump or mixer provided with jet means as claimed in any one of the preced

Claims (1)

  1. ing claims.
    11. A pump or mixer substantially as herein described with reference to any one of the embodiments shown in the accompanying drawings.
GB32796/76A 1977-07-25 1977-07-25 Jet pump or mixer and jet means therefor Expired GB1582898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32796/76A GB1582898A (en) 1977-07-25 1977-07-25 Jet pump or mixer and jet means therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32796/76A GB1582898A (en) 1977-07-25 1977-07-25 Jet pump or mixer and jet means therefor

Publications (1)

Publication Number Publication Date
GB1582898A true GB1582898A (en) 1981-01-14

Family

ID=10344114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32796/76A Expired GB1582898A (en) 1977-07-25 1977-07-25 Jet pump or mixer and jet means therefor

Country Status (1)

Country Link
GB (1) GB1582898A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142209A2 (en) * 1983-11-11 1985-05-22 Grasso's Koninklijke Machinefabrieken N.V. Plant, such as cooling plant or heat pump
FR2558071A1 (en) * 1984-01-13 1985-07-19 Raffinage Cie Francaise METHOD AND DEVICE FOR MIXING AT LEAST TWO GASES AND APPLICATION TO THE DILUTION IN THE AIR OF A GAS BEFORE REJECTING IT TO THE ATMOSPHERE
FR2619023A1 (en) * 1987-08-07 1989-02-10 Lamort E & M PRESSURE MIXER INJECTOR

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142209A2 (en) * 1983-11-11 1985-05-22 Grasso's Koninklijke Machinefabrieken N.V. Plant, such as cooling plant or heat pump
EP0142209A3 (en) * 1983-11-11 1985-12-04 Grasso's Koninklijke Machinefabrieken N.V. Plant, such as cooling plant or heat pump
FR2558071A1 (en) * 1984-01-13 1985-07-19 Raffinage Cie Francaise METHOD AND DEVICE FOR MIXING AT LEAST TWO GASES AND APPLICATION TO THE DILUTION IN THE AIR OF A GAS BEFORE REJECTING IT TO THE ATMOSPHERE
EP0149574A2 (en) * 1984-01-13 1985-07-24 Compagnie De Raffinage Et De Distribution Total France Method for diluting a gas, or mixture of gases, with air before discharge to atmosphere
EP0149574A3 (en) * 1984-01-13 1985-09-11 Compagnie Francaise De Raffinage Societe Anonyme Dite: Method for diluting a gas, or mixture of gases, with air before discharge to atmosphere
FR2619023A1 (en) * 1987-08-07 1989-02-10 Lamort E & M PRESSURE MIXER INJECTOR
US4842777A (en) * 1987-08-07 1989-06-27 E & M Lamort Pressurized mixing injector

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee