WO2023156843A1 - Équipement d'homogénéisation de fluides et son procédé de fonctionnement - Google Patents

Équipement d'homogénéisation de fluides et son procédé de fonctionnement Download PDF

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Publication number
WO2023156843A1
WO2023156843A1 PCT/IB2022/060140 IB2022060140W WO2023156843A1 WO 2023156843 A1 WO2023156843 A1 WO 2023156843A1 IB 2022060140 W IB2022060140 W IB 2022060140W WO 2023156843 A1 WO2023156843 A1 WO 2023156843A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
equipment
disc valve
homogenization
central shaft
Prior art date
Application number
PCT/IB2022/060140
Other languages
English (en)
Inventor
Sivaramakrishna Rao Chalamalasetti
Original Assignee
CHALAMALASETTI, Vijay C.S Anand
Marabathula, Harish
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 CHALAMALASETTI, Vijay C.S Anand, Marabathula, Harish filed Critical CHALAMALASETTI, Vijay C.S Anand
Publication of WO2023156843A1 publication Critical patent/WO2023156843A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/50—Pipe mixers, i.e. mixers wherein the materials to be mixed flow continuously through pipes, e.g. column mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/41—Emulsifying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/41—Emulsifying
    • B01F23/413—Homogenising a raw emulsion or making monodisperse or fine emulsions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/071—Fixing of the stirrer to the shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/115—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
    • B01F27/1151—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis with holes on the surface

Definitions

  • Embodiments of a present disclosure relate to a homogenizer and more particularly to an equipment for homogenization for fluids and a method for operating the same.
  • homogenization is the mechanical process of reducing the size of fat particles in milk to extremely small particles and distributing it uniformly throughout the volume of milk.
  • homogenization is the process of mixing two manually non-soluble liquids uniformly.
  • homogenization is performed by a homogenizer which is industrial equipment.
  • Unprocessed or Raw fluids like milk contain 3 to 5 percent fat particles and about 8 percent SNF (Solids-Not-Fat) particles both of which are soft in nature.
  • the fat globules that are of size 200 to 250 microns form clusters and float to the surface of the milk and get separated as a cream layer due to the lower density. Floating cream layer is not desirable because it does not allow packaging and distribution or processing of milk for other purposes in large volumes which is a major problem in the dairy industry.
  • the dairy industry is using ‘homogenization’ to break up large fat particles into much smaller ones that are evenly distributed in the milk. This process involves subjecting milk to high pressure at a temperature of about 80 degrees Centigrade. Milk, under high pressure and temperature, passes through narrow gaps in the homogenizer valves. This process provides the breaking of fat globules into tiny particles that blend with milk and get evenly distributed.
  • homogenizer includes a motor-operated plunger that produces heavy compression to a fluid and all its constituents by blocking the path between stage valves under heavy spring pressure.
  • Some homogenizers use hydraulic force on the upper valve to produce the necessary compression force.
  • the output capacity of the equipment varies based on the method used.
  • the valves at different stages block the free flow of the fluid and force the fluid to pass through narrow openings and hit a rubber ring which breaks the large particles in the fluid into finer particles, which then mix with the fluid readily. During this process, the entire quantity of the fluid is compressed and released as per the set plunger pumping. Most of the power used to operate the plungers is consumed to compress a large quantity of fluid, while only a small fraction of large particles is split into smaller particles, which means maximum electricity is used for the wasteful purpose of compressing large volumes of the fluid.
  • an equipment for homogenization of fluid includes an inlet portion, a cylindrical housing, a driving motor, and a feed-out portion.
  • the inlet portion is configured to receive a definite volume of a fluid subjected to homogenization wherein the inlet portion passes the fluid upon receiving from a first point to a second point.
  • the cylindrical housing is operatively coupled to the second point of the inlet portion, wherein the cylindrical housing includes a central shaft and a plurality of discs.
  • the central shaft is installed along a horizontal axis of the cylindrical housing.
  • the central shaft has splines that allow the plurality of discs to be mounted on it.
  • Each set of disc valve within the system of the plurality of discs comprises of a stationary disc supported by the outer cylinder and a rotating disc mounted on the shaft.
  • the drive motor rotates the shaft at a specified speed (rpm).
  • the feed-out portion is operatively coupled to a rear end of the cylindrical housing. This causes the discs mounted on the shaft to spin and provides fluid-bearing effect when fluid passes in between the spinning and stationary disc valves multiple times through each of the disc valve sets.
  • the feed-out portion is operatively coupled to a rear end of the cylindrical housing.
  • the feed-out portion includes a closed lid that is unfastened to allow discharge of the fluid from the equipment upon completion of homogenization.
  • a method for operating an equipment for homogenization of fluids includes supplying, to an inlet portion of an equipment accountable for homogenization, a definite volume of milk.
  • the method also includes applying to a central shaft operatively coupled to a cylindrical housing, a pre-defined pressure manually, or by a driving motor.
  • the method also includes rotating, the central shaft and in sequence rotating a plurality of disc valves in opposite directions.
  • the method includes trapping a plurality of fat globules composed in the fluid and subsequently breaking the plurality of fat globules into a plurality of particles that combine with the milt to produce a uniform color.
  • the method also includes receiving, from a feed-out portion of the equipment, the volume of fluid upon completion of homogenization.
  • FIG. 1 is a cross sectional view of an equipment for homogenization of fluids in accordance with an embodiment of the present disclosure
  • FIG. 2 is an exploded view of a cylindrical housing of FIG. 1 in accordance with an embodiment of the present disclosure
  • FIG. 3 is a front view of a plurality of discs in accordance with an embodiment of the present disclosure
  • FIG. 4 is a side view of the shape of an inlet portion of FIG. 1 in accordance with an embodiment of the present disclosure
  • FIG. 5 is a perspective view of a plurality of disc and valve arrangements of FIG. 1 in accordance with an embodiment of the present disclosure.
  • FIG. 6 is a flow chart representing steps involved in a method for operation of an equipment for homogenization of fluid in accordance with an embodiment of the present disclosure.
  • Embodiments of the present disclosure relate to an equipment for homogenization of fluids and a method for operating the same.
  • the term “homogenization” denotes a process used to make a mixture of two mutually non- soluble fluids to the same throughout. Homogenization turns the fluid into a state consisting of extremely small particles distributed uniformly throughout the fluid.
  • the equipment— described hereafter in FIG. 1 is the equipment for homogenization of fluids and the method for operating the same.
  • the ‘fluid’ as herein described can be referred to ‘milk’ .
  • FIG. 1 is a schematic representation of an equipment for the homogenization of fluids in accordance with an embodiment of the present disclosure.
  • the equipment (100) includes an inlet portion (102), a cylindrical housing (104), a driving motor (110), and a feed-out portion (112).
  • the inlet portion (102) is configured to receive a definite volume of a fluid subjected to homogenization.
  • the inlet portion (102) includes a filter (120) to trap a plurality of impurities or solid particles that may be present in the fluid.
  • the inlet portion (102) allows the fluid upon receiving from a first point (102a) to a second point (102b).
  • the definite volume of fluid is based on the volume of the fluid required as an output upon homogenization.
  • the cylindrical housing (104) is operatively coupled to the second point (102b) of the inlet portion (102).
  • the cylindrical housing (104) includes a central shaft (106) that is installed along a horizontal axis of the cylindrical housing (104).
  • the central shaft (106) is tubular in shape. In one embodiment, the central shaft (106) is made up of metal material.
  • the fluid flows through the first point (102a) of the inlet portion (102) and is sent to the cylindrical housing (104) from the second point (102b).
  • the fluid is then passed through the plurality of discs (108) which are mounted on the central shaft (106).
  • the central shaft (106) is directly connected to the driving motor (110)
  • the central shaft (106) facilitates the rotation of the plurality of discs (108).
  • the plurality of discs () is positioned between two valves. The valves rotate in the opposite direction of each other.
  • the fluid passes through the plurality of discs (108) and valve arrangement. After passing through the valve arrangement the fluid is homogenized.
  • the homogenized fluid then exits from the feed-out portion (112).
  • the equipment disclosed may act as an attachment to a pasteurizer in the process of homogenization of milk.
  • PHE plate heat exchanger
  • the milk is bypassed and in the currently existing system, the milk is diverted through NRVs (Non- Retum Valve), reciprocating pump and subjected to pass through set of homogenizer valves.
  • NRVs Non- Retum Valve
  • the reciprocating plungers force the milk through the narrow gap at around 200bar pressure.
  • the milk fluid which is subjected to heavy pressure consists of 95% liquid and a balance 5% fat and solids. Only this 5% parts of globules needs to be split into fine particles.
  • the force applied on to the globules is the liquid milk which is a soft material. Unless very heavy force is applied the purpose is not served. That is the entire milk in rotation undergoes that much of pressure of 175kg/cm sq.
  • the milk is passed through the specially designed perforated disc valves, they rotate in opposite to each other with a pre-set narrow gap.
  • the action of the valves is splitting, twisting, and dividing the milk into many folds while passing through the length of 3 to 4 sets of valves having multiple ports which will not allow the direct flow of milk or any part of the milk. This may help in splitting the fat content into several fine particles and at the same time distribute it among the whole content or volume of milk. No pressure is applied.
  • the output from the homogenizer in the present disclosure is to reconnect back to the pasteurizer which continues the flow through high temperatures up to 85° and continues the recovery and regeneration of heat.
  • the process of homogenization may be done at higher whirling speeds up to 1440 to 2500 RPM non-contact disc rotations at normal pressures can help the action of splitting the fat globules.
  • High-pressure application is avoided in the present disclosure and changed to high speed. This avoids all heavy machinery and parts, only 10% of the power is used.
  • FIG. 2 is a schematic representation of a cylindrical housing of FIG. 1 in accordance with an embodiment of the present disclosure.
  • the cylindrical housing (104) also includes a plurality of discs (108) mounted on the central shaft (106).
  • Each of the plurality of discs (108) includes a first disc valve (108a) and a second disc valve (108b).
  • the first disc valve (108a) and the second disc valve (108b) rotate in the opposite direction of each other.
  • the driving motor (110) is operatively coupled to the cylindrical housing (104) and operational to directly drive the central shaft (106) along the horizontal axis at a pre-defined velocity.
  • the feed-out portion (112) is operatively coupled to a rear end (104a) of the cylindrical housing (104) wherein the feed-out portion (112) includes a closed lid (114) that is unfastened to allow discharge of the fluid from the equipment (100) upon completion of homogenization.
  • the closed lid (114) may be of composed of a suitable material such as rubber, metal plastic, polymer, and the like.
  • the present invention is not limited to any particular material disclosed.
  • FIG. 3 is a schematic representation of a plurality of discs of FIG. 1 in accordance with an embodiment of the present disclosure.
  • the plurality of discs (108) includes a central spherical incision (not shown in FIG.3) to clinch the plurality of discs (108) with the central shaft (106).
  • the first disc valve (108a) and the second disc valve (108b) are mounted along the horizontal axis with a pre-defined gap of 0.1 to 0.2 millimetres in length. In such an embodiment, the first disc valve (108a) in static and the second disc valve (108b) drives in a rotational movement opposite to the first disc valve (108a).
  • the first disc valve (108a) and the second disc valve (108b) include a plurality of slots (116) and a plurality of grooves (118).
  • the plurality of slots (116) is chiselled on surfaces of the first disc valve (108a) and a second disc valve (108b).
  • the slots are sharp to improve the quality of homogenization.
  • the fluid flows through the plurality of slots (116) upon the pressure that is enforced manually or by the driving motor (110).
  • the first disc valve (108a) and a second disc valve (108b) also include a plurality of grooves (118) chiselled on the outer circumference of the first disc valve (108a) and the second disc valve (108b).
  • the plurality of slots (116) is in the shape of an arc pointing radially outwards from the first disc valve (108a) and second disc valve (108b). In such an embodiment, the plurality of slots (116) traps a plurality of large particles present in the fluid and subsequently breaks the plurality of large particles into a plurality of particles that combines with the fluid to produce a uniform color.
  • FIG. 4 is a schematic representation of an inlet portion in accordance with an embodiment of the present disclosure.
  • the inlet portion (102) is frsuto-conical in shape.
  • the frusto-conical shape is the shape of a frustum and a cone, which is the shape of a cone or pyramid whose tip has been truncated by a plane parallel to its base.
  • the first point (102a) is an area of the opening of the inlet portion (102) and the second point (102b) is an area of exit of the inlet portion (102).
  • FIG. 5 is a schematic representation of valve arrangements of FIG. 1 in accordance with an embodiment of the present disclosure.
  • the valve arrangement includes the first disc valve (108a) and the second disc valve (108b).
  • the first disc valve (108a) and the second disc valve (108b) are mounted along the horizontal axis with a pre-defined gap of 0.1 to 0.2 millimetres in length.
  • the first disc valve (108a) in static and the second disc valve (108b) drives in a rotational movement opposite to the first disc valve (108a).
  • the valve arrangement includes, a central hole configured to accommodate the central shaft (106).
  • FIG. 6 is a flow chart representing steps involved in a method (200) of homogenization of fluids in accordance with an embodiment of the present disclosure.
  • the method (200) includes supplying, to an inlet portion of an equipment accountable for homogenization, a definite volume of milk in step (202).
  • the method includes applying to a central shaft operatively coupled to a cylindrical housing, a pre-defined pressure manually or by a driving motor wherein upon applying the pressure causes in step (204).
  • the method also includes rotating, with a speed of 1440 RPM.
  • the method includes rotating the central shaft and in sequence rotating a plurality of disc valves in opposite directions in step (206).
  • the method also includes clinching, by a central spherical incision of the plurality of disc valves, the plurality of discs with the central shaft.
  • the method also includes mounting, the first disc valve (108a) and the second disc valve (108b) along the horizontal axis with a pre-defined gap of 0.1 to 0.2 millimetres in length.
  • the method also includes positioning, the first disc valve (108a) in static and the second disc valve (108b) in a rotational movement opposite to the first disc valve (108a).
  • the method also includes disposing a plurality of slots (116), and a plurality of grooves (118), by the first disc valve (108a) and the second disc valve (108b).
  • the plurality of slots (116) is chiselled on surfaces of the first disc valve (108a) and a second disc valve (108b).
  • the plurality of slots (116) allows the fluid to flow through the plurality of slots (116) upon the pressure that is enforced manually or by the driving motor (110).
  • the plurality of grooves (118) chiselled on the outer circumference of the first disc valve (108a) and the second disc valve (108b).
  • the method includes trapping a plurality of large particles composed in the fluid and subsequently breaking the plurality of large particles into a plurality of particles that combine with the fluid to produce a uniform color in step (208).
  • the method includes receiving, from a feed-out portion of the equipment, the volume of fluid upon completion of homogenization in step (210).
  • the method also includes operating, the feed-out portion by manually or automatically.
  • Various embodiments of the present disclosure enable homogenizing the fluids by consuming less power.
  • the equipment in the present disclosure provides good quality of homogenized fluid with less use of electric power. By using the equipment in the present disclosure, the large volume of fluid can be compressed with less power consumption.
  • the equipment in the present disclosure provides homogenization of the fluid that increases its shelf life of the fluid. Increasing the shelf life of the fluid include increased plant efficiency, reduced distribution costs, and reduced product returns.
  • the direct drive enables direct connection of motor to the cylindrical housing, which facilitates compactness of the equipment. Also, the direct drive avoids mechanical transmission elements between the driving motor and the cylindrical housing. The mechanical transmission elements such as, belts, transmission elements, and the like.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dairy Products (AREA)

Abstract

L'invention concerne un équipement (100) d'homogénéisation de fluide. L'équipement comprend une partie d'entrée (102), un boîtier cylindrique (104), un moteur d'entraînement (110) et une partie de sortie (112). La partie d'entrée reçoit un volume défini d'un fluide soumis à une homogénéisation. Le boîtier cylindrique comprend un arbre central (106) qui est installé le long d'un axe horizontal dudit boîtier cylindrique et une pluralité de disques (108) montés sur l'arbre central. Chacun de la pluralité de disques comprend une première soupape à disque (108a) et une seconde soupape à disque (108b). Le moteur d'entraînement est opérationnel pour entraîner directement l'arbre central le long de l'axe horizontal à une vitesse prédéfinie. La partie de sortie est couplée de manière fonctionnelle à une extrémité arrière (104a) du boîtier cylindrique. La partie de sortie comprend un couvercle fermé (114) qui n'est pas fixé pour permettre la décharge du fluide à partir de l'équipement lors de l'achèvement de l'homogénéisation.
PCT/IB2022/060140 2022-02-15 2022-10-21 Équipement d'homogénéisation de fluides et son procédé de fonctionnement WO2023156843A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202241008026 2022-02-15
IN202241008026 2022-02-15

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Publication Number Publication Date
WO2023156843A1 true WO2023156843A1 (fr) 2023-08-24

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2305370A1 (fr) * 2009-09-30 2011-04-06 AZO Holding GmbH Homogénéisateur et dispositif d'homogénéisation doté d'un tel homogénéisateur
EP2086668B1 (fr) * 2006-10-25 2016-11-16 Revalesio Corporation Dispositif de mélange et procédé

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2086668B1 (fr) * 2006-10-25 2016-11-16 Revalesio Corporation Dispositif de mélange et procédé
EP2305370A1 (fr) * 2009-09-30 2011-04-06 AZO Holding GmbH Homogénéisateur et dispositif d'homogénéisation doté d'un tel homogénéisateur

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