AT406108B - Vacuum generation for milking installations - Google Patents
Vacuum generation for milking installations Download PDFInfo
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- AT406108B AT406108B AT93298A AT93298A AT406108B AT 406108 B AT406108 B AT 406108B AT 93298 A AT93298 A AT 93298A AT 93298 A AT93298 A AT 93298A AT 406108 B AT406108 B AT 406108B
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Abstract
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AT 406 108 BAT 406 108 B
Die Erfindung betrifft eine Vorrichtung zur Vakuumerzeugung in einer Melkanlage oder Milchbehandlungsanlage, im wesentlichen bestehend aus einer Flüssigkeitspumpe zur Druckerzeugung und Erwärmung der Flüssigkeit, Flüssigkeitsbehältem zur Flüssigkeitsaufnahme und -abgabe, Ventilen und Leitungen zur Wegsteuerung der Druckmedien und Druckregelung, einem Ausgleichsbehälter zur Vakuumstabilisierung, Isolierung gegen Wärmeveriust sowie einem Wärmetauscher zur Wärmeentnahme.The invention relates to a device for vacuum generation in a milking plant or milk treatment plant, consisting essentially of a liquid pump for generating pressure and heating the liquid, liquid containers for receiving and dispensing liquid, valves and lines for controlling the pressure media and pressure control, an expansion tank for vacuum stabilization, insulation against Heat loss and a heat exchanger for heat extraction.
Die Vakuumerzeugung in einer Melkanlage erfolgt meist durch elektrisch betriebene Drehschieber-Vakuumpumpen, bei welchen ein exzentrisch im Pumpengehäuse angeordneter Rotor, unterteilt durch mehrere radial gleitender federloser Schieber, den Schöpfraum der Pumpe in mehrere Kammern teilt. Das Vakuum jeder Kammer ändert sich periodisch mit der Drehung des Rotors. Dadurch wird die Luft angesaugt. Sie strömpt durch den Ansaugstutzen und gelangt in den Schöpfraum. Durch den sich weiterdrehenden Rotor trennt der Schieber den Schöpfraum vomVacuum generation in a milking plant is usually carried out by electrically operated rotary vane vacuum pumps, in which a rotor arranged eccentrically in the pump housing, divided by several radially sliding springless slides, divides the pump's pumping chamber into several chambers. The vacuum of each chamber changes periodically with the rotation of the rotor. This will suck in the air. It flows through the intake manifold and enters the scoop. The spool separates the scoop from the rotating rotor
Ansaugstutzen, die Luft wird komprimiert und durch den Auspuffstutzen aus dem Schöpfraum gedrückt.Intake manifold, the air is compressed and pushed out of the exhaust chamber through the exhaust pipe.
Diese Drehschieberpumpen sind durch den hohen benötigten Luftdurchfluß bei Melkanlagen trotz Schalldämpfer lärmintensiv, sodaß insbesondere bei im verbauten Ortsgebiet befindlichen Melkanlagen sich der Lärm sehr störend auswirkt. Die Schmierung dieser beschriebenen Drehschieberpumpen erfolgt in der Regel meist mit öl, das sich umweltbelastend und kostenaufwendig erweist, ebenso entsteht durch die Reibung der Schieber in der Pumpe Wärme, die ungenützt an die Umgebung und über Auspuff abgegeben wird.These rotary vane pumps are noisy due to the high air flow required in milking systems, despite the silencer, so that the noise is very disruptive, especially in milking systems in the built-up area. The lubrication of the rotary vane pumps described is usually done with oil, which is environmentally harmful and costly, and the friction of the vanes in the pump also generates heat, which is released unused to the environment and via the exhaust.
Erfindungsgemäß werden diese Nachteile dadurch behoben, daß der Ausgleichsbehälter der Vorrichtung direkt an eine Melkanlage oder Milchbehandlungsanlage angeschlossen ist, daß die Flüssigkeitspumpe durch beim jeweiligen im wesentlichen von Ventilen gesteuertem abwechselndem Abpumpen der Flüssigkeit aus Behältern, die in diesen entstehenden flüssigkeitslosen Räume vergrößert und dadurch Vakuum entsteht und daß ein Wärmetauscher im Flüssigkeitskreislauf zur nutzbringenden Wärmeentnahme eingebaut ist.According to the invention, these disadvantages are eliminated in that the expansion tank of the device is connected directly to a milking plant or milk processing plant, that the liquid pump is increased by the pumping of the liquid from containers, which is essentially controlled by valves, which increases the resulting liquid-free spaces and thereby creates a vacuum and that a heat exchanger is installed in the liquid circuit for beneficial heat extraction.
Diese Vorrichtung oder Teile davon sind zweckmäßigerweise mit einer Wärmeisolierung versehen. Weiterhin besteht die Möglichkeit daß ein Ventil bedarfsweise die Flüssigkeiten aus den Behältern verbindet, um eine Vakuumreduzierung zu erreichen. In einer geeigneten Ausführung sind Leitungen zur Eigenwärmeentnahme von der Pumpe durch die Flüssigkeit angeordnet.This device or parts thereof are expediently provided with thermal insulation. There is also the possibility that a valve connects the liquids from the containers if necessary in order to achieve a vacuum reduction. In a suitable embodiment, lines are arranged for the natural heat removal from the pump through the liquid.
Eine bevorzugte Ausführungsform ist in der Zeichnung dargestellt und wird im folgenden anhand der Zeichnung näher beschrieben, weiche eine schematische Darstellung der Vorrichtung zeigt.A preferred embodiment is shown in the drawing and is described in more detail below with reference to the drawing, which shows a schematic representation of the device.
Die Vorrichtung umfaßt im wesentlichen eine handelsübliche Flüssigkeitspumpe 1 deren Antriebskraft verschieden sein kann, die in der Vorrichtung als elektrobetrieben dargestellt ist, weiche die Flüssigkeit abwechselnd aus bzw. in die festwandigen Flüssigkeitsbehälter 2 und 3 pumpt. Die durch den Pumpvorgang entstehende Wärme in der Pumpe 1 wird nutzbringend entzogen. Die Flüssigkeit kann zweckmäßigerweise mit gleitfördemden, rost- und frosthemmenden Mitteln aufbereitetes Wasser sein.The device essentially comprises a commercially available liquid pump 1, the driving force of which can be different, which is shown in the device as being electrically operated, which alternately pumps the liquid out or into the solid-walled liquid containers 2 and 3. The heat generated in the pump 1 by the pumping process is usefully extracted. The liquid can expediently be water treated with slip-promoting, rust and frost-inhibiting agents.
Ein Behälter 4 dient zur Vakuumstabilisierung. Im Wärmetauscher 5 wird die im System vorhandene Wärme entzogen, auch im Bedarfsfall über Heizeinrichtung 27 zugeführtA container 4 is used for vacuum stabilization. In the heat exchanger 5, the heat present in the system is withdrawn and also supplied via a heating device 27 if necessary
Das Mehrwegeventil 6 besteht im wesentlichen aus dem Gehäuse, einem Kolben 24, der die Flüssigkeitsleitungen verbindet und der von den Steuerungskolben 22 und 23 bei Oberdruck hin und her bewegt wird aber nicht fix verbunden ist.The multi-way valve 6 consists essentially of the housing, a piston 24 which connects the liquid lines and which is moved back and forth by the control pistons 22 and 23 at top pressure but is not permanently connected.
Die Ventile 7 und 8 sind bei Atmosphären- bzw. Überdruck selbständig geschlossen, bei Unterdrück geöffnet. Ventile 9 und 10 sind umgekehrt bei Atmosphären- und Überdruck geöffnet, bei Unterdrück geschlossen. Die Schwimmerventile 9a und 10a sind geöffnet, sie werden nur durch die Flüssigkeit, welche die Behälter 2 und 3 abwechselnd befüllt, geschlossen.The valves 7 and 8 are automatically closed at atmospheric or overpressure and open at negative pressure. Conversely, valves 9 and 10 are open at atmospheric and excess pressure, and closed at negative pressure. The float valves 9a and 10a are open, they are only closed by the liquid which alternately fills the containers 2 and 3.
Flüssigkeitsführende Leitungen sind mit den Ziffern 11,12,13, 13a, 13b, 14,15, 25, 26, 34 und 35 bezeichnet Vakuum- und Luftleitungen sind mit den Ziffern 16, 17, 18, 20 und 21 bezeichnet. Eine Querschnittverminderung 19 dient zur Flüssigkeitsregelung durch Leitung 13a und 13b zur Kühlung des Motors der Flüssigkeitspumpe 1. 28 und 29 sind Leitungen zur Heizeinrichtung 27. Die Ziffern 30, 31, 32, 33, 34 und 35 beziehen sich auf die Vakuumregulierung und 37 auf die Auslaßöffnung der Leitung 18. Um Wärmeverluste gering zu halten ist eine Wärmeisolierung 36 vorgesehen. Flüssigkeitskontrolle ist durch Klarsichtleitung 38 gegeben, etwaige Nachfüllung ist über Hahn 39 möglich, jedoch in der Funktion nicht beschrieben.Liquid-carrying lines are designated by the numbers 11, 12, 13, 13a, 13b, 14, 15, 25, 26, 34 and 35. Vacuum and air lines are designated by the numbers 16, 17, 18, 20 and 21. A reduction in cross section 19 is used to control the liquid through lines 13a and 13b for cooling the motor of the liquid pump 1. 28 and 29 are lines to the heating device 27. Numbers 30, 31, 32, 33, 34 and 35 relate to the vacuum regulation and 37 to the Outlet opening of the line 18. In order to keep heat losses low, thermal insulation 36 is provided. Liquid control is provided by transparent line 38, any refill is possible via tap 39, but the function is not described.
Funktionen: 2Features: 2
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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AT93298A AT406108B (en) | 1998-05-29 | 1998-05-29 | Vacuum generation for milking installations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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AT93298A AT406108B (en) | 1998-05-29 | 1998-05-29 | Vacuum generation for milking installations |
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ATA93298A ATA93298A (en) | 1999-07-15 |
AT406108B true AT406108B (en) | 2000-02-25 |
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AT93298A AT406108B (en) | 1998-05-29 | 1998-05-29 | Vacuum generation for milking installations |
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-
1998
- 1998-05-29 AT AT93298A patent/AT406108B/en not_active IP Right Cessation
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