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WO2015122767A1 - Récipient sous pression - Google Patents

Récipient sous pression Download PDF

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Publication number
WO2015122767A1
WO2015122767A1 PCT/NL2015/050088 NL2015050088W WO2015122767A1 WO 2015122767 A1 WO2015122767 A1 WO 2015122767A1 NL 2015050088 W NL2015050088 W NL 2015050088W WO 2015122767 A1 WO2015122767 A1 WO 2015122767A1
Authority
WO
WIPO (PCT)
Prior art keywords
conduit
liquid
vessel
tank
product
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.)
Ceased
Application number
PCT/NL2015/050088
Other languages
English (en)
Inventor
Philippe Ramirez
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.)
Moba Group BV
Original Assignee
Moba Group BV
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 Moba Group BV filed Critical Moba Group BV
Publication of WO2015122767A1 publication Critical patent/WO2015122767A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00—Preservation of foods or foodstuffs, in general
    • A23B2/10—Preservation of foods or foodstuffs, in general by treatment with pressure variation, shock, acceleration or shear stress
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B5/00—Preservation of eggs or egg products

Definitions

  • the present invention relates to a pressure vessel for processing liquid product, for example food product such as egg liquid, under high pressure, comprising:
  • a pressure control unit comprising a piston system on top of said vessel for increasing and lowering said pressure during operating said vessel in an operating cycle.
  • the invention also relates to a method for processing product liquid, for example food product such as egg liquid, under high pressure, and carried out in a pressure vessel tank and thereby carrying out an operating cycle.
  • product liquid for example food product such as egg liquid
  • Such vessels in particular comprise tanks used for processing food liquids, either directly by pressurizing such liquids, or by pressurizing packaged food liquids.
  • Such systems are referred to in US7722912.
  • parallel processing is applied to avoid long stops.
  • batches of such food liquids can be processed in order to obey strict pasteurization requirements.
  • the vessel in accordance with the present invention is characterized in that at least a cleaning fluid inlet conduit is comprised, concentric within a liquid product conduit and telescopically movable within said liquid conduit thereby opening and closing a cleaning fluid discharging opening.
  • the vessel of the present invention is further characterized in that,
  • said fluid discharging opening comprises at least one orifice close to the distal end of said conduit
  • said conduit can rotate when said at least one orifice is opened
  • said conduit has a length such that the conduit can be moved into the tank close to the piston
  • the vessel further comprises a piston positioning system for moving the piston to a cleaning position, and/or
  • the piston positioning system comprises an electromagnetic control, e.g. including one or more solenoids for (magnetically) attracting the piston.
  • the present invention also comprises a method for processing product liquid, for example food product such as egg liquid, under high pressure, and carried out in a pressure vessel tank and thereby carrying out an operating cycle, comprising,
  • Such method provides a very suitable way of processing both reducing cleaning time and improving cleaning characteristics substantially.
  • the method of the present invention is further characterized in that
  • said cleaning comprises spraying said tank, particularly an interior (i.e. inner wall) of the tank; and/or
  • said cleaning comprises positioning said piston in a cleaning position, for example a retracted position with respect to the tank.
  • FIGURE 1 shows an opened view of an embodiment of the vessel according to a non- limiting embodiment of the present invention for the situation the tank is being filled with product liquid
  • FIGURE 2 shows the same embodiment for the situation filling is completed
  • FIGURE 3 presents said embodiment for the situation pressurizing the product is carried out
  • FIGURE 4 presents said embodiment for the situation the product liquid has been processed and is being discharged from the tank
  • FIGURE 5 shows said embodiment during cleaning the tank.
  • FIG. 1 shows an embodiment of a pressure vessel 1 for processing liquid product, for example food product such as egg liquid, under high pressure. It comprises a high pressure processing tank having a substantially cylindrical form. Additionally, there is provided at least one liquid conduit to said tank (in this case two conduits 10, 20) for feeding and discharging said liquid product P, respectively before and after processing.
  • each liquid conduit 10, 20 includes a respective valve for controlling liquid flow through the conduit (i.e. for directing said liquid product into and from said vessel).
  • a pressure control unit comprising a piston system on top of said vessel for increasing and lowering said pressure during operating said vessel in an operating cycle.
  • the vessel 1 includes a cleaning fluid inlet conduit, concentric within a said product conduit (the feed conduit 10, in this example) and telescopically movable within said liquid conduit 10 thereby opening and closing a respective cleaning fluid discharging opening.
  • said discharge opening is located at or near a distal end of the conduit 10, particularly a distal end that leads into the tank for supplying the product thereto.
  • a liquid product supply conduit 10 can be connected to a liquid product supply (not shown), e.g. via suitable supply lines (not shown).
  • a liquid product discharge conduit 20 can be connected to a processed liquid product receiver (not shown), e.g. via suitable discharge lines (not shown).
  • the pressurizing vessel 1 comprises a tank with tank wall 2 which can be closed by a cover 3 thus forming an assembly having substantially cylindrical form with central cylinder axis A.
  • a piston 4 is installed for exerting pressure on said product liquid P by means of an hydraulic pressurizing liquid, to be supplied through an hydraulic inlet conduit 5.
  • a schematically depicted piston position control 6 e.g.
  • a solenoid for magnetically attracting a magnetically attractable part of the piston controls the position of the piston 4 when the tank is empty, particularly for retracting the posting 4 towards an initial retracted position (as in Fig. 5), thereby making tank wall 2 free for cleaning purposes.
  • inlet-outlet units i.e. respective fluid product conduits 10, 20 are shown.
  • a product inlet 10 for supplying product liquid P into said tank a product inlet 10 is provided controlled by a valve.
  • Said valve comprises an inlet valve stem 11, an inlet valve stop 12, and an inlet valve control 13.
  • For discharging the product liquid P after having been processed by pressurizing said liquid P is discharged through a product outlet 20 which is also controlled by a valve system.
  • Said outlet valve comprises an outlet valve stem 21, an outlet valve stop 22, and an outlet valve control 23.
  • Said cleaning inlet valve comprises a cleaning liquid inlet conduit 30, having a distal a cleaning inlet orifice (e.g.
  • the cleaning fluid inlet conduit is concentric within a said liquid product conduit (in this case the inlet 10), and is also telescopically movable within said liquid conduit 10.
  • the cleaning fluid discharging opening orifice 32
  • Figure 4 depicting a closed position of the orifice 32 when the cleaning fluid conduit 30 is in a first retracted position
  • Figure 5 depicting an opened or free position of the orifice 32 when the cleaning fluid conduit 30 is in a second position moved inwards with respect to the tank.
  • the distal cleaning fluid discharge orifice 32 is located within a closed distal section of the valve stem 11 of the respective product conduit 10.
  • the valve stop 12 of the respective conduit covers and closes off the distal section of the valve stem 11.
  • the valve stop 12 is connected to the cleaning fluid conduit 30 (via a respective cleaning fluid stem 31), to be moved away from the distal edge of the respective valve stem 11 during telescopic movement of the cleaning fluid conduit 30 (i.e. stem 31).
  • the product liquid outlet 20 is closed by closing tank outlet opening 2b of the tank wall 2 with outlet valve stop 22. More in particular outlet valve control 23 has moved stop 22 and its stem 21 to a retracted position.
  • outlet valve control 23 has moved stop 22 and its stem 21 to a retracted position.
  • many such controls are well known in this field of technology (e.g. including a hydraulic control, or a pneumatic control), whereas a spring control has been shown in this particular embodiment.
  • the product inlet 10 a similar set-up has been shown, with an open product liquid inlet 10 because of the outwardly moved inlet valve stem 11 which makes the inlet valve stem free from tank inlet opening 2a.
  • valve control 13 For moving said inlet valve stem 11 valve control 13 has been moved in the same outward direction, which means into the tank. As follows from the drawings, the inlet valve stem 11 has been moved together with the respective cleaning fluid conduit 30, in such a manner that the valve stop 12 closes off the stem section that contains the distal cleaning fluid exit orifice(s) 32. It should be noted that in this example, for introducing cleaning fluid C into the tank (i.e. for moving the cleaning fluid conduit 30 with respect to the valve stem 11 ) a substantially similar valve system is provided within the product liquid inlet valve stem 11 (i.e. similar to the valve system that controls that stem).
  • the inlet valve stem 11 movably contains a said cleaning inlet conduit 30, a cleaning fluid spray orifice 32 housed in an inlet orifice body 32a closely fitting in said stem 11.
  • a cleaning fluid valve control 33 is comprised, shown in this FIGURE 1 in closed position, thus closing the orifice 32.
  • FIGURE 2 it can be seen that supplying product liquid P is completed wherein the product liquid P is contacting the piston 4.
  • the situations for the product liquid inlet 10 and for the product liquid outlet 20 are the same as shown in FIGURE 1.
  • FIGURE 3 the situation of pressurizing product liquid P is shown. After the tank having filled the product liquid inlet 10 has been closed, wherein the inlet valve stop 12 is closing the tank inlet opening 2a, and wherein therefore the inlet valve control 13 has retracted the inlet valve stem 11 to the closed position.
  • the piston 4 is shown in a pressurizing position thereby reducing the product liquid volume. Pressurizing the product liquid P by moving the piston 4 downwardly is carried out by hydraulic fluid H supplied through the hydraulic fluid inlet-outlet conduit 5.
  • FIGURE 4 a further stage of the operating cycle is shown, i.e. discharging the product liquid P after having been processed by pressurizing. More in particular the product liquid outlet 20 is open after the outlet valve control 23 has moved outlet valve stem 21 with outlet valve stop 22 upwardly an away from the tank outlet opening 2b. As shown, for that step the piston has been retracted to its starting position, e.g. at least partly under control of an electromagnetic control, including a solenoid 5 (shown in cross section) in this example. In FIGURE 5 cleaning the tank, and more in particular the tank wall 2 and the piston 4.
  • the tank outlet opening 2b is closed and the piston 4 is held in the retracted position, in this case by means of the solenoid 5, whereas the controls 13, 33 are activated to move respectively the inlet valve stem 11 and the cleaning fluid inlet valve stem 31.
  • the cleaning fluid valve orifice 32 which is arranged in an orifice head 32a is freed, and opened thus giving a spray after the cleaning fluid or cleaning liquid has been supplied through the cleaning fluid inlet 30.
  • said head 32a is closely fitting in the upper part (i.e. the distal section) of the inlet stem 11.
  • the cleaning fluid conduit 30 can be rotated during the discharging or spraying of cleaning fluid into the tank (i.e. when one or more respective exit orifices 32 is/are opened).
  • a suitable cleaning fluid will be chosen in order to start a next operating cycle with a clean tank according to usual requirements.
  • a retracting movement of the piston 2 may be effected under influence of pressure of pressurized liquid within the tank, e.g. in case of reduction of a hydraulic pressure in the hydraulic fluid pressure/control line 5.
  • each control 13, 23, 33 for controlling movement of a respective stem or conduit can include a piston/cylinder-type control, particularly a pneumatically or hydraulically controllable piston/cylinder-type actuator, a spring control, or a different type of control.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

La présente invention concerne un récipient sous pression permettant de traiter un produit liquide, par exemple un produit alimentaire tel que le liquide d'œuf, sous haute pression, comprenant un réservoir de traitement à haute pression de forme sensiblement cylindrique, un conduit d'entrée-sortie de liquide pour ledit réservoir permettant d'alimenter et d'évacuer ledit produit liquide, respectivement avant et après traitement, une soupape dans ledit conduit d'entrée-sortie de liquide pour diriger ledit liquide dans et hors dudit récipient, et une unité de commande de la pression comprenant un système de piston situé au-dessus dudit récipient permettant d'augmenter et de réduire ladite pression pendant le fonctionnement dudit récipient dans un cycle de fonctionnement, comprenant au moins un conduit d'entrée de fluide de nettoyage, lequel étant concentrique à l'intérieur dudit conduit d'entrée-sortie de liquide et mobile de manière télescopique à l'intérieur dudit conduit d'entrée de liquide, ce qui permet d'ouvrir et de fermer une ouverture d'évacuation de fluide de nettoyage. En outre, la présente invention concerne un procédé permettant de mettre en œuvre un cycle de fonctionnement dans un récipient de ce type. Cette invention présente un grand avantage car elle permet d'obtenir un mode d'emploi économique d'un tel récipient à des fins de nettoyage et de couplage des lignes de traitement.
PCT/NL2015/050088 2014-02-11 2015-02-10 Récipient sous pression Ceased WO2015122767A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14000473 2014-02-11
EP14000473.0 2014-02-11

Publications (1)

Publication Number Publication Date
WO2015122767A1 true WO2015122767A1 (fr) 2015-08-20

Family

ID=50114260

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2015/050088 Ceased WO2015122767A1 (fr) 2014-02-11 2015-02-10 Récipient sous pression

Country Status (1)

Country Link
WO (1) WO2015122767A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5579682A (en) * 1993-06-11 1996-12-03 Asea Brown Boveri Ab Device for high-pressure treatment of substances
US6305913B1 (en) * 1999-08-13 2001-10-23 Flow International Corporation Pressure processing a pumpable substance with a flexible membrane
AU773758B2 (en) * 1998-06-18 2004-06-03 Flow International Corporation Method and apparatus for regulating flow of a pumpable substance
US7722912B2 (en) 2005-05-16 2010-05-25 Hormel Foods Corporation Method and apparatus for material handling for a food product using high pressure pasteurization

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5579682A (en) * 1993-06-11 1996-12-03 Asea Brown Boveri Ab Device for high-pressure treatment of substances
AU773758B2 (en) * 1998-06-18 2004-06-03 Flow International Corporation Method and apparatus for regulating flow of a pumpable substance
US6305913B1 (en) * 1999-08-13 2001-10-23 Flow International Corporation Pressure processing a pumpable substance with a flexible membrane
US7722912B2 (en) 2005-05-16 2010-05-25 Hormel Foods Corporation Method and apparatus for material handling for a food product using high pressure pasteurization

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BUZRUL ET AL.: "Compression heating of selected pressure transmitting fluids and liquid foods during high hydrostatic pressure treatment", JOURNAL OF FOOD ENGINEERING, vol. 85, 2008, pages 466 - 472

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