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WO2002003780A1 - Systeme de regulation du vide dans des equipements de traite d'animaux laitiers - Google Patents

Systeme de regulation du vide dans des equipements de traite d'animaux laitiers Download PDF

Info

Publication number
WO2002003780A1
WO2002003780A1 PCT/IT2001/000292 IT0100292W WO0203780A1 WO 2002003780 A1 WO2002003780 A1 WO 2002003780A1 IT 0100292 W IT0100292 W IT 0100292W WO 0203780 A1 WO0203780 A1 WO 0203780A1
Authority
WO
WIPO (PCT)
Prior art keywords
vacuum
electropump
milking
line
circuit
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/IT2001/000292
Other languages
English (en)
Inventor
Paolo Soldi
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.)
AGRISISTEMI Srl
Original Assignee
AGRISISTEMI 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
Application filed by AGRISISTEMI Srl filed Critical AGRISISTEMI Srl
Priority to AU2001274496A priority Critical patent/AU2001274496A1/en
Priority to EP01941010A priority patent/EP1298981A1/fr
Publication of WO2002003780A1 publication Critical patent/WO2002003780A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01J—MANUFACTURE OF DAIRY PRODUCTS
    • A01J5/00—Milking machines or devices
    • A01J5/04—Milking machines or devices with pneumatic manipulation of teats
    • A01J5/047—Vacuum generating means, e.g. by connecting to the air-inlet of a tractor engine
    • A01J5/048—Vacuum regulators

Definitions

  • the present invention concerns a system for regulating the vacuum in equipments for milking milch animals.
  • the equipments for milking known and used at present are operated through a vacuum line that feeds the different groups and devices for milking and milk transport.
  • the vacuum line originates from a pumping group that must maintain in said line a determined vacuum level, predetermined according to the capacity of the milking equipment.
  • the main problem to solve consists in reacting to such variations of the line vacuum for restoring the predetermined vacuum level during the project and the installation of the equipment.
  • one single vacuum pump with lobes or with gears is used which is piloted by an inverter through an interface that receives the value of the vacuum in line taken by a sensor, and consequently regulates the revolutions of the engine of the vacuum pump.
  • Such a regulation system has the advantage that it follows, moment by moment, any request of the milking equipment but, at the same time, it also shows some disadvantages.
  • the pump must be a volumetric pump with lobes or with ears, which means that it is very loud; that it has an efficiency lower than the one of a centrifugal pump with blades; that it is dimensioned according to the maximum requirement of the equipment (which occurs very seldom), but that it is forced to work as a rule according to the values of its own particular curve, far f om the possibility of optimal efficiency. Therefore, such a kind of equipment is very expensive due to its dimensions as well as to the kind of pump used and due to the use of an inverter able to regulate the number of revolutions of the electric engine that drives said pump.
  • a plurality of vacuum pumps are used, mainly centrifugal blade pumps, connected with a battery, all always working during the milking operations and dimensioned in such a way as to assure the efficiency of the maximum emergency capacity of said equipment.
  • a vacuum valve with a mechanical or pneumatic working is provided on the line of the equipment for regulating the vacuum level, gauged for balancing the excessive vacuum value caused by the pumps, by sucking air from the outside.
  • a sensor for taking the vacuum on said line - an inverter that modulates the revolutions of the electric engine of said first electropump; characterized in that it comprises: a valve for regulating the vacuum, applied onto said line; - at least a second centrifugal vacuum electropump;
  • control board for managing the system; wherein said control board checks the vacuum level taken by the sensor and - besides modulating the first electropump by means of tlie inverter - controls the starting and turning off of said second electropump by means of the relative remote-control switch, for keeping the predetermined vacuum value constant, in co-operation with the vacuum regulation valve.
  • the advantages obtained by means of the system according to the present invention mainly consist in the energy saving that may be obtained during milking, and in the possibility of modifying already existing equipments by means of simple devices available on the market, managed by a special control board.
  • Figure 1 shows the scheme of a system for regulating the vacuum in equipments for milking milch animals according to the present invention.
  • Figure 2 shows the scheme of a variant of the system of figure 1.
  • Figure 3 shows the electric scheme of the control board that manages the system according to the present invention.
  • Figure 4 shows a variant of the electric scheme of the control board.
  • the system for regulating the vacuum in equipments M for milking milch animals comprises: - a plurality of vacuum electropumps E;
  • the milking equipment M may be of any known kind and usually it may comprise pulsating means, milking groups, pails or containers for the milk, pipings for transporting the milk, pumps for transporting the milk, etc.
  • each electropump E comprises a centrifugal pump 1 with lades driven by an electric engine 2.
  • the capacity and prevalence features of each electropump E are such as to cover a part of the maximum request of the milking equipment so that when they are all working, the maximum request may be satisfied.
  • the vacuum line L comprises pipings for the connection between electropumps E and the equipment M, interception valves, vacuum level gauges and interception devices for known liquids, not shown. Furthermore, line L comprises at lease one vacuum sensor S and one vacuum regulation valve V.
  • the vacuum sensor S may be analogic or analogic/digital and takes the level on the vacuum line, transforming the same into an electric signal.
  • the driving of the second vacuum electropump E occurs through a comparative circuit C; with an analogic/digital sensor, i.e. with digital indication of the limit levels shown in figure 4, the driving of the second vacuum electropump E is direct.
  • the vacuum regulation valve V is advantageously of known kind with mechanic or pneumatic driving and may be gauged at a level of optimal vacuum for the working of the milking equipment.
  • said valve V preferably is of electromechanical kind and may be driven from the control board P.
  • Inverter I is of known kind and allows to vary the number of revolutions of the electric engine of a first electropump E, so as to modulate the capacity of said electropump.
  • the remote-control switch T is of known kind and allows starting or stopping the electric motor 2 of an electropump E.
  • the control board P allows managing the whole system and mainly comprises: a feeding circuit A; a comparative circuit and a circuit for the regulation of the intervention limit C; a priority circuit of the washing vacuum VL; at least one delay circuit R of the pump(s) besides the first one; at least one timing circuit CT of the pump(s) besides the first one.
  • tlie feeding circuit A of the control board P creates the feeding tensions of the comparative and timing circuits.
  • the comparative circuit and the circuit for regulating the intervention limit C compares the signal coming from the vacuum sensor S with the defined vacuum reference and generates the reference signal of the speed to be sent to the inverter I and to the delay circuits R.
  • the priority circuit of the washing vacuum VL sets in after milking, during the washing phase of the equipment by means of the washing machine LAV, for defining the washing vacuum.
  • the delay circuit R for the intervention of the pump(s) besides the first one determines tlie intervention delay of said pump(s) in case of variation of milking vacuum.
  • the timing circuit CT of the pump(s) besides the first one determines the intervention time of said pmnp(s).
  • the board P orders the inverter I to drive a first electropump E for assuring in said equipment the predetermined vacuum level, absolutely necessary and sufficient for the ordinary milking operations. If the vacuum line L level gets down below the minimum defined level, sensor S takes mat value and sends an electric signal to board P that works it our together with the comparative circuit C and orders the inverter I to increase the number of revolutions of the engine 2 of the first electropump E.
  • board P orders a first remote-control switch T to operate a second electropump E, that gets to its particular capacity and prevalence.
  • board P sends the signal to remote-control switch T only after a short time period (about two seconds) due to the delay circuit R, during which an insufficient vacuum level has been kept.
  • the second electropump E is kept on by the remote-control switch for a time period predetermined through the timing circuit of the board P.
  • this time period expires and sensor S takes a sufficient vacuum level, the board orders the stop of the electropump or vice versa said electropump continues working until tlie required level has been reached.
  • the series of vacuum electropumps consists of more than two electropumps working in milking, as shown in figures 1 and 2, sensor S continues taking the vacuum level in line L during the working of the second electropump E. If, in spite of the starting of tlie second electropump, such level remains below the minimum value required by the equipment, board P orders a second remote- control switch T to start a third electropump E - after a determined time period (e.g. after four seconds) in which said value does not get over the limit - independently from the first and the second one, and with a system of series in fall (i.e. in timing sequence). Also the third electropump remains forcedly working for a defined time period (in case, different from the one of the second pump), through board P. When the defined time periods relatively for pumps 2 and 3 expire, if sensor S has taken a line vacuum value corresponding to the requested one, board P will order to stop the second and the third electropump.
  • a determined time period e.g. after four seconds
  • the vacuum valve V starts working automatically and lets air into line L so as not to exceed the vacuum level defined when the milking equipment has been installed.
  • the vacuum valve V is an electromechanical one and the opening thereof is controlled by board P, as well as the modulation thereof.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Animal Husbandry (AREA)
  • Environmental Sciences (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fodder In General (AREA)

Abstract

L'invention concerne un système permettant de réguler le vide dans des équipements (M) de traite d'animaux laitiers, qui comporte une première électropompe centrifuge à vide (E), entraînée par un moteur électrique (2) ; une ligne de vide (L) reliant ladite électropompe (E) et l'équipement de traite (M) ; un détecteur (S) destiné à amener le vide sur la ligne (L) ; un inverseur (I) modulant les révolutions du moteur électrique (2) de ladite électropompe (E). Le système comporte en outre une soupape (V) conçue pour réguler le vide appliqué à ladite ligne (L) ; au moins une seconde électropompe centrifuge à vide (E) ; au moins un commutateur à commande distante (T) pour la seconde électropompe et un tableau de commande (P) destiné à gérer le système. Ce tableau (P) vérifie le niveau de vide utilisé par le détecteur (S) et, en plus de moduler la première électropompe (E) au moyen de l'inverseur (I), commande le démarrage et l'arrêt de ladite seconde électropompe (E) au moyen du commutateur à commande distante relative (T), afin de maintenir constante la valeur de vide prédéterminée, en coopération avec la soupape de régulation (V) du vide.
PCT/IT2001/000292 2000-07-07 2001-06-07 Systeme de regulation du vide dans des equipements de traite d'animaux laitiers Ceased WO2002003780A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001274496A AU2001274496A1 (en) 2000-07-07 2001-06-07 A system for regulating the vacuum in equipments for milking milch animals
EP01941010A EP1298981A1 (fr) 2000-07-07 2001-06-07 Systeme de regulation du vide dans des equipements de traite d'animaux laitiers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITCR2000A000007 2000-07-07
IT2000CR000007A ITCR20000007A1 (it) 2000-07-07 2000-07-07 Sistema per la regolazione del vuoto in impianti per la mungitura di animali da latte

Publications (1)

Publication Number Publication Date
WO2002003780A1 true WO2002003780A1 (fr) 2002-01-17

Family

ID=11441298

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2001/000292 Ceased WO2002003780A1 (fr) 2000-07-07 2001-06-07 Systeme de regulation du vide dans des equipements de traite d'animaux laitiers

Country Status (4)

Country Link
EP (1) EP1298981A1 (fr)
AU (1) AU2001274496A1 (fr)
IT (1) ITCR20000007A1 (fr)
WO (1) WO2002003780A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006006906A1 (fr) * 2004-07-13 2006-01-19 Delaval Holding Ab Source de vide reglable
WO2008121051A1 (fr) 2007-04-03 2008-10-09 Delaval Holding Ab Procédé utilisé dans un système de traite pour créer un niveau de vide nécessaire et logiciels informatiques
RU2404570C2 (ru) * 2006-01-31 2010-11-27 Делавал Холдинг Аб Система и способ доения животных
WO2013137717A1 (fr) 2012-03-12 2013-09-19 Lely Patent N.V. Machine de traite et un procédé de fonctionnement d'une telle machine de traite
WO2019177516A1 (fr) * 2018-03-12 2019-09-19 Delaval Holding Ab Agencement de pompe à vide pour installation de traite
WO2023121543A1 (fr) * 2021-12-23 2023-06-29 Delaval Holding Ab Source d'alimentation sous vide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773016A (en) * 1972-01-31 1973-11-20 Babson Bros Co Milker control
US5052341A (en) * 1985-11-01 1991-10-01 The Director General Of The Ministry Of Agriculture And Fisheries Milking machinery
WO1997001270A1 (fr) * 1995-06-26 1997-01-16 Tetra Laval Holdings & Finance S.A. Procede de regulation du niveau de vide dans un dispositif de traite, et dispositif de traite
US5624394A (en) * 1994-10-28 1997-04-29 Iolab Corporation Vacuum system and a method of operating a vacuum system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773016A (en) * 1972-01-31 1973-11-20 Babson Bros Co Milker control
US5052341A (en) * 1985-11-01 1991-10-01 The Director General Of The Ministry Of Agriculture And Fisheries Milking machinery
US5624394A (en) * 1994-10-28 1997-04-29 Iolab Corporation Vacuum system and a method of operating a vacuum system
WO1997001270A1 (fr) * 1995-06-26 1997-01-16 Tetra Laval Holdings & Finance S.A. Procede de regulation du niveau de vide dans un dispositif de traite, et dispositif de traite

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7886692B2 (en) 2004-07-13 2011-02-15 Delaval Holding Ab Controllable vacuum source
US9399990B2 (en) 2004-07-13 2016-07-26 Delaval Holding Ab Controllable vacuum source
RU2360405C2 (ru) * 2004-07-13 2009-07-10 Делавал Холдинг Аб Регулируемый источник вакуума
EP1768484B1 (fr) 2004-07-13 2015-07-22 DeLaval Holding AB Source de vide reglable
WO2006006906A1 (fr) * 2004-07-13 2006-01-19 Delaval Holding Ab Source de vide reglable
US20110000562A1 (en) * 2004-07-13 2011-01-06 Mats Stellnert Controllable vacuum source
RU2404570C2 (ru) * 2006-01-31 2010-11-27 Делавал Холдинг Аб Система и способ доения животных
AU2008233366B2 (en) * 2007-04-03 2012-08-09 Delaval Holding Ab A method in a milking system for creating a required vacuum level and computer program products
CN101646335B (zh) * 2007-04-03 2012-09-19 利拉伐控股有限公司 在挤奶系统中建立需要的真空度的方法
US8381679B2 (en) 2007-04-03 2013-02-26 Delaval Holding Ab Method in a milking system for creating a required vacuum level and computer program products
EP2131648A4 (fr) * 2007-04-03 2014-07-16 Delaval Holding Ab Procédé utilisé dans un système de traite pour créer un niveau de vide nécessaire et logiciels informatiques
JP2010523111A (ja) * 2007-04-03 2010-07-15 デラヴァル ホルディング アーベー 要求減圧レベルを作るための搾乳システムにおける方法及びコンピュータプログラム製品
WO2008121051A1 (fr) 2007-04-03 2008-10-09 Delaval Holding Ab Procédé utilisé dans un système de traite pour créer un niveau de vide nécessaire et logiciels informatiques
WO2013137717A1 (fr) 2012-03-12 2013-09-19 Lely Patent N.V. Machine de traite et un procédé de fonctionnement d'une telle machine de traite
WO2019177516A1 (fr) * 2018-03-12 2019-09-19 Delaval Holding Ab Agencement de pompe à vide pour installation de traite
RU2763973C1 (ru) * 2018-03-12 2022-01-12 Делаваль Холдинг Аб Конструкция вакуумного насоса для доильной установки
US11758877B2 (en) 2018-03-12 2023-09-19 Delaval Holding Ab Vacuum pump arrangement for a milking plant
WO2023121543A1 (fr) * 2021-12-23 2023-06-29 Delaval Holding Ab Source d'alimentation sous vide

Also Published As

Publication number Publication date
ITCR20000007A0 (it) 2000-07-07
ITCR20000007A1 (it) 2002-01-07
EP1298981A1 (fr) 2003-04-09
AU2001274496A1 (en) 2002-01-21

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