RU2220566C2 - Apparatus for washing of milk pipelines for milking units - Google Patents

Abstract

FIELD: agricultural engineering. SUBSTANCE: apparatus has tank, liquid line connected with tank, gas line for facilitating liquid supplying and forming of gas-liquid flow, gas-liquid flow discharge pipeline, and gas supply pulsator. Pulse amplifier and atmospheric air supply interrupter are sequentially connected to gas supply pulsator for providing stopper mode of washing liquid and gas flow. EFFECT: increased efficiency in washing of milking unit pipelines. 3 dwg

Description

 The invention relates to agriculture, in particular, to washing milking installations.

 A device for circulating washing milk pipelines of milking machines [1], comprising a milk pipeline with taps for connecting milking machines, an air separator, a washing device, a centrifugal pump for pumping liquid from the air separator, which is connected through a pipe to a vacuum pump. The flushing device is connected to the end of the milk line, remote from the air separator, by a hose having an opening for air intake.

 The disadvantage of this device is that it does not provide the amount of air necessary to create a plug mode of the washing liquid flow in the milk pipelines of increased diameter of modern milking machines, and therefore does not provide optimal conditions for creating the maximum washing effect.

 The closest technical solution is the installation for washing channels and cavities [2], including a tank, an associated liquid line, a gas line for supplying liquid and the formation of a gas-liquid stream, a gas-liquid flow outlet pipe, and a gas supply pulsator installed in the gas line .

 The disadvantage of the installation is the low quality of washing milk pipelines with an increased diameter of modern milking installations.

 The objective of the present invention is to increase the efficiency of washing milk pipelines with an increased diameter of modern milking installations by providing a plug mode of the washing liquid flow.

 This object is achieved in that the proposed device is equipped with a pulse amplifier and an air supply chopper connected in series with a gas supply pulsator installed in the gas line.

 Figure 1 shows the washing scheme of the milk pipelines of milking units; in FIG. 2 is a diagram of the proposed device for washing milk pipelines of milking units in the interruption mode of atmospheric air supply; figure 3 is a diagram of a device for washing milk pipelines of milking installations in the mode of supply of atmospheric air.

 A device for washing milk pipelines of milking installations contains a tank 1 (Fig. 1), an associated liquid line, a gas line for supplying liquid and the formation of a gas-liquid stream, and a gas-liquid flow removal line. The liquid line includes a milk line 2 connected to the tank 1, and a flushing line 3 on which the milking units are installed 4. The flushing line 3 is connected to the washing bath 5. The gas-liquid flow outlet pipe contains a line 6 connecting the tank 1 to the volume pump 7, a drain pipe 8, which is located above the washing bath 5. The gas line includes a vacuum wire 9 connected to a vacuum pump 10, a vacuum cylinder 11, a vacuum gauge 12 and a gas supply pulsator 13. To a gas supply pulsator 13 and a vacuum wire 9 are connected in series with a pulse amplifier 14 and an atmospheric air supply interrupter 15. The pulse amplifier 14 comprises a variable vacuum chamber 16 (FIG. 2), a constant atmospheric pressure chamber 17, a control chamber 18, a washer 19, a membrane 20, a supply pipe 21, outlet pipe 22, double valve 23. The air supply interrupter 15 has a valve 24, an adjustment screw 25, a spring 26, a receiving pipe 27 and a pipe with an enlarged cross section 28 for supplying atmospheric air.

 A device for washing milk pipelines of milking plants works as follows.

 When air is aspirated by a vacuum pump 10, a vacuum is created in the system (Fig. 1), under which the washing liquid from the washing bath 5 is sucked into the washing pipe 3 and then passing through the milking machines 4 and milk pipe 2, it enters the tank 1. From the tank 1 the liquid is pumped through the pipe 6 by the volume pump 7 into the washing bath 5.

 During the washing process, the gas supply pulsator 13 provides a vacuum in the control chamber 18 of the pulse amplifier 14 (FIG. 2). The double valve 23 closes the constant atmospheric pressure chamber 17 and opens the hole connecting the variable vacuum chamber 16 to the vacuum wire 9. At the same time, the valve 24 of the atmospheric air supply interrupt 15 is closed.

 In the next phase, from the gas supply pulsator 13, atmospheric pressure air enters the control chamber 18 of the pulse amplifier 14 (Fig. 3). At a certain moment, the force acting on the membrane 20 upwards becomes less than the force acting on the double valve 23 downward, and the double valve 23 is lowered. In this case, the hole communicating the variable vacuum chamber 16 and the constant atmospheric pressure chamber 17 opens, and the hole connecting the variable vacuum chamber 16 with the vacuum wire 9 is closed. As a result, air enters the inlet pipe 27 of the atmospheric air supply interrupter 15, under which the valve 24 rises. Atmospheric air through a pipe of increased cross section 28 passes into the washed milk line 2.

 After a certain time, the supply of atmospheric air to the control chamber 18 of the pulse amplifier 14 is stopped, and the vacuum gradually increases in it. In this case, the double valve 23 closes the hole communicating the variable vacuum chamber 16 and the constant atmospheric pressure chamber 17, and the hole connecting the variable vacuum chamber 16 with the vacuum wire 9 opens, the valve 24 of the atmospheric air supply interrupt 15 drops, and the atmospheric air supply the washed milk line 2 stops. Next, the processes of the device are repeated at a frequency specified by the pulsator gas supply 13.

 With such a device operation, atmospheric air enters the washed milk line 2 and, breaking the continuous flow of washing liquid into the individual pistons, moves with air jams. In this flow regime, due to the high velocity of the fluid near the walls, the particles of contaminants come off and move along the walls. With this movement, a liquid film is formed between the particle and the pipe wall, the adhesion (adhesion) forces of the particles to the wall are reduced, and the particles of contaminants are more effectively removed from the washed milk line 2.

 Thus, the proposed device for washing milk pipelines of milking installations can increase the washing efficiency by providing a plug flow regime of the washing liquid and gas.

Sources of information
1. Swedish patent 359775, cl. A 01 J 7/00, 1970.

 2. Copyright certificate of the USSR 1819693, cl. B 08 B 9/06, 1993.

Claims (1)

A device for flushing milk pipelines of milking installations, comprising a tank, an associated liquid line, a gas line for supplying liquid and generating a gas-liquid stream, a gas-liquid flow outlet pipe, a gas supply pulsator installed in the gas line, characterized in that it is provided with a pulse amplifier and a chopper atmospheric air supply connected in series with a gas supply pulsator.

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