EP0338230A2 - Vorrichtung zur Druckbeaufschlagung eines Kompressionsraums mittels einer Antriebsflüssigkeit - Google Patents

Vorrichtung zur Druckbeaufschlagung eines Kompressionsraums mittels einer Antriebsflüssigkeit Download PDF

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Publication number
EP0338230A2
EP0338230A2 EP89104061A EP89104061A EP0338230A2 EP 0338230 A2 EP0338230 A2 EP 0338230A2 EP 89104061 A EP89104061 A EP 89104061A EP 89104061 A EP89104061 A EP 89104061A EP 0338230 A2 EP0338230 A2 EP 0338230A2
Authority
EP
European Patent Office
Prior art keywords
pressure
chamber
compression chamber
pump
pressing
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.)
Withdrawn
Application number
EP89104061A
Other languages
English (en)
French (fr)
Other versions
EP0338230A3 (de
Inventor
Paolo Rondina
Giuseppe Battistoni
Vincenzo Di Napoli
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.)
TECNOSIPREM Srl
Original Assignee
TECNOSIPREM Srl
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
Priority claimed from IT20221/88A external-priority patent/IT1217428B/it
Priority claimed from IT8820725A external-priority patent/IT8820725A0/it
Application filed by TECNOSIPREM Srl filed Critical TECNOSIPREM Srl
Publication of EP0338230A2 publication Critical patent/EP0338230A2/de
Publication of EP0338230A3 publication Critical patent/EP0338230A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/22—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using a flexible member, e.g. diaphragm, urged by fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B30B9/047—Control arrangements

Definitions

  • the present invention relates to a device for pressurizing, by means of a working fluid, a compression chamber, more particularly intended to equip installations for the pressing of substances containing a liquid, for example fruit.
  • Presses are known for pressing grapes which essentially comprise a tank divided by a membrane into a compression chamber and a pressing chamber; the working fluid is introduced into the compression chamber, so that the membrane comes to bear against the substance from which the liquid is to be extracted.
  • the operating time of the pressure pump is determined by a small electronic control unit which, using a probe, measures the pressure inside the pressure chamber. compression.
  • the pressure pump is actuated to supply additional pressure so that the pressure reduction does not occur in a lapse of time. longer than the preset time; it is then that a drain pump is activated which removes the working fluid from the compression chamber.
  • the pressing action consequently presents a diagram of the kind of that shown in FIG. 1 of the accompanying drawing, diagram on which it is easy to identify successive pressure levels and which shows a discontinuous pressing action.
  • the main object of the present invention is to provide a device which allows the pressing of the grape so as to obtain progressive pressure increases, comprising no jerk and according to a well defined program.
  • the invention proposes to allow the production of a device which ensures the pressing of the grapes according to durations and oenological results similar to those and to those of traditional vertical presses, in particular that known under the name of "MARMONIER ".
  • Yet another object of the invention lies in a device capable of facilitating the implementation of the pressing program of the electronic control unit.
  • a device for regulating the pressure in a compression chamber using a working fluid and for maintaining constant pressure in said chamber inside which the pressure tends to decrease irregularly comprising at least one pressure pump for delivering pressure under pressure the working fluid into the aforementioned chamber and at least one supply line which makes the pump communicate with the chamber, and characterized in what there is provided at least one control valve capable of intercepting the fluid in the supply line, as well as means for controlling the opening and closing, total or partial, of said valve, these means control themselves comprising at least one sensor for measuring the pressure prevailing in the compression chamber, means for controlling the abovementioned control valve as a function at least of the value of the pressure recorded e in the chamber, and means for detecting the degree of opening of this valve.
  • the device according to the invention was supposed to be applied to a press for the grapes which comprises a pressing tank 2 inside which and in the known manner a membrane defines a compression chamber and a pressing chamber.
  • the grape to be pressed In the pressing chamber is introduced the grape to be pressed, while in the compression chamber is sent a driving fluid so that the membrane presses the grape in the usual way.
  • the installation advantageously uses water as the working fluid, so that there is also provided a reservoir 3 hydraulically connected to the device 1.
  • This device 1 substantially comprises a filling pump 4, a pressure pump 5 and a drain pump 6, mounted in parallel on the one hand on a supply pipe 7 connected to the compression chamber of the tank 2 and of on the other hand on a main pipe 8 which communicates with the tank 3.
  • each of the pumps 4,5 and 6 is associated with a closing valve 9 which separates the envisaged pump from the supply pipe 7.
  • a bypass 10 is connected to the supply line 7 and is preferably connected to the main line 8 which communicates with the reservoir 3 containing the fluid under pressure.
  • a modulating control valve 11 provided with means for controlling its opening, advantageously constituted by a solenoid 12, as well as means for measuring the degree of opening, produced in the form of a detector. proximity which translates said degree into an electrical signal.
  • the means 12 for actuating the valve 11 are connected to an electronic central unit 13 which is itself connected to the pumps 4, 5 and 6 and to a sensor 14 suitable for measuring the pressure prevailing inside the chamber. compression.
  • the filling pump 4 sends the working fluid into the compression chamber of the tank 2 until the membrane presses against the grapes contained in the pressing chamber with a relatively low pressure. Indeed this pump 4 has a reduced power, but a large flow so as to be able to operate the filling of the compression chamber in a short period of time.
  • the pump 5 is actuated which brings the fluid to the pressure provided for the pressing of the grapes and this in a determined period of time, controlled by means of the central unit 13.
  • control unit 13 determines the opening, total or partial, of the control valve 11 so that the excess fluid sent to the supply line 7 is directed to the reservoir 3, which has the effect of thus maintaining the pressure of the working fluid inside the compression chamber at the expected value.
  • the drain pump 6 is in turn actuated in order to extract the fluid from the compression chamber for the return to tank 3.
  • Fig. 4 illustrates the arrangement of a device produced according to a second embodiment of the invention, said device, generally referenced 101, being applied to a grape press.
  • This device 101 comprises a pressing tank 102 to the interior of which a membrane defines, in a manner known per se and similarly to what has been explained above, a compression chamber and a pressing chamber.
  • the installation uses water as the working fluid so that a reservoir 103 is hydraulically connected to the device 101.
  • the latter comprises inter alia a filling pump 104, a pressure pump 105 and a drain pump 106, all three connected in parallel on the one hand to a supply pipe 107 which communicates with the compression chamber of the tank 102 , on the other hand to a main pipe 108 connected to the tank 103.
  • Each of the pumps 104 and 105 is associated with a shut-off valve 109 interposed between the pump in question and the supply line 107; on the other hand, the closing valve 109 associated with the pump 106 is provided between the latter and the main pipe 108.
  • control valve 110 On the pipe which connects the pressure pump 105 to the supply pipe 107 is further mounted a control valve 110 which is connected in series with respect to the closing valve 109 and which is also formed by a closing valve provided means for its actuation on opening, said means being for example formed by a solenoid 112, as well as by a proximity detector which translates by an electrical signal the degree of opening of said valve.
  • the means 112 for controlling the valve 110 are connected to a power station 113 which is simultaneously connected to the pumps 104, 105, 106 and to a sensor 114 capable of measuring the pressure inside the compression chamber.
  • the filling pump 104 sends the fluid into the compression chamber of the tank 102 until the membrane bears, with a relatively low pressure, against the grapes contained in the pressing chamber. Indeed, this filling pump has a low power, but a high flow rate in order to be able to ensure in a short period of time the filling of the compression chamber.
  • the compression pump 105 which is actuated to raise the pressure of the working fluid to the value provided for the pressing of the grapes, and this in a determined period of time, controlled using the central 113.
  • control valve 110 is actuated so as to operate a more or less large throttling according to the command received from the central 113 thereby maintaining the pressure of the pressure at the desired value. fluid which fills the compression chamber.
  • control unit 113 activates the drain pump 106 which extracts the fluid from the compression chamber to return it to the reservoir 103.
  • the device according to the invention makes it possible to obtain the goal which we had set our by making it possible to carry out a pressing cycle of the grape having progressive increases in pressure, without the pressure levels inevitably encountered in usual rigid systems.
  • the pressure values were maintained and programmed according to a fixed and predetermined time.
  • the increase in pressure is proportional over time because the emission of the working fluid is related to the effective extraction of the must.
  • a specific program develops, in addition to command and control of the various other functions, the signal which is transmitted by the proximity detector indicating the degree of opening of the control valve, thereby determining the moment when it is necessary to carry out a lowering and avoiding any sudden change.
  • the press equipped with the device according to the invention is able to automatically comply with the optimal pressing time as a function of the nature of the grape to be pressed.
  • a significant advantage of the invention lies in the reduction of pressing times, the evacuation of the must and its filtering being thus always constant.
  • Yet another advantage of the invention consists in using water as the pressure fluid, which allows much more precise control of the variations in the pressure inside the pressing tank.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Reciprocating Pumps (AREA)
  • Preparation Of Fruits And Vegetables (AREA)
EP19890104061 1988-04-18 1989-03-08 Vorrichtung zur Druckbeaufschlagung eines Kompressionsraums mittels einer Antriebsflüssigkeit Withdrawn EP0338230A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT2022188 1988-04-18
IT20221/88A IT1217428B (it) 1988-04-18 1988-04-18 Dispositivo per mettere in pressione mediante fluido in pressione una camera di pressione
IT2072588 1988-05-25
IT8820725A IT8820725A0 (it) 1988-05-25 1988-05-25 Dispositivo per regolare la pressione in una camera di pressione mediante fluido di pressione.

Publications (2)

Publication Number Publication Date
EP0338230A2 true EP0338230A2 (de) 1989-10-25
EP0338230A3 EP0338230A3 (de) 1991-05-08

Family

ID=26327452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890104061 Withdrawn EP0338230A3 (de) 1988-04-18 1989-03-08 Vorrichtung zur Druckbeaufschlagung eines Kompressionsraums mittels einer Antriebsflüssigkeit

Country Status (1)

Country Link
EP (1) EP0338230A3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2800974A1 (fr) * 1999-11-15 2001-05-18 Serge Martinez Procede de mise en oeuvre d'un pressoir hydraulique horizontal a plateaux circulaires
US6247397B1 (en) * 1998-09-11 2001-06-19 Siprem International Srl Apparatus for separating liquid and solid substances, particularly for extracting juice from fruit and the like
FR2904511A1 (fr) * 2006-08-01 2008-02-08 Hubert Revolte Plateau mobile filtrant pour le pressurage de grappes de raisin, et son procede de pressurage de mise en oeuvre
FR3121067A1 (fr) * 2021-03-23 2022-09-30 Bucher Vaslin pressoir et son procédé de commande

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2079009A (en) * 1980-06-30 1982-01-13 Karlstad Mekaniska Ab A hydraulically operable press
US4574599A (en) * 1984-12-06 1986-03-11 Pallerin Milnor Corporation Apparatus for pressing liquid from cloth goods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2079009A (en) * 1980-06-30 1982-01-13 Karlstad Mekaniska Ab A hydraulically operable press
GB2133905A (en) * 1980-06-30 1984-08-01 Karlstad Mekaniska Ab A hydraulically operable press for use in the production of wood-based boards
US4574599A (en) * 1984-12-06 1986-03-11 Pallerin Milnor Corporation Apparatus for pressing liquid from cloth goods

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6247397B1 (en) * 1998-09-11 2001-06-19 Siprem International Srl Apparatus for separating liquid and solid substances, particularly for extracting juice from fruit and the like
FR2800974A1 (fr) * 1999-11-15 2001-05-18 Serge Martinez Procede de mise en oeuvre d'un pressoir hydraulique horizontal a plateaux circulaires
FR2904511A1 (fr) * 2006-08-01 2008-02-08 Hubert Revolte Plateau mobile filtrant pour le pressurage de grappes de raisin, et son procede de pressurage de mise en oeuvre
FR3121067A1 (fr) * 2021-03-23 2022-09-30 Bucher Vaslin pressoir et son procédé de commande

Also Published As

Publication number Publication date
EP0338230A3 (de) 1991-05-08

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