SU954067A1 - Apparatus for circulation washing of milk line of milking unit - Google Patents

Description

The invention relates to agriculture, in particular to devices for circulating washing of a milking unit.

A device for washing a milking unit is known comprising a milk collector connected to a vacuum source, centrifugal and volumetric pumps and a washing bath £ 1].

However, this device does not provide automatic adjustment of the water temperature during the washing process.

A device is also known for circulating washing the milk line of a milking machine, containing a closed container connected by pipelines to a vacuum source, a milk pipe and a centrifugal pump, the discharge pipe of which is connected to the milk collector and thermostat 121.

The known device is difficult to operate and does not provide automatic control of the temperature of the washing liquid.

. Pel invention - automatic control of the temperature of the washing liquid.

This goal is achieved in that the thermostat is made in the form of a hollow body with an axial throttle dividing it into two damers, connected by a pipeline with a vacuum source and connected to the said body of the mixing chamber, which has hoses for hot] q and cold washing liquid, on which it is installed pneumatic clamp, moreover, in one of the chambers there is a spring-loaded needle rod coupled to a heat-sensitive element located 15 in the mixing chamber and the other chamber has an axial throttle and. calibrated hole, with which it communicates with the atmosphere and through a pipeline - with a pneumatic clamp.

Moreover, the axial throttles of the temperature sensor are installed with the possibility of changing the distance between them.

In addition, the needle rod of the thermosensitive element is made adjustable in length.

In FIG. 1 shows schematically a device for circulating washing a milk line of a milking machine; in FIG. 2 - a temperature regulator, a longitudinal section.

A device for circulating washing the milk line of the milking unit contains a sealed container 1 (Fig. 1), connected by a pipe 2 to an air separator 3 of a vacuum unit, a hose 4 with a milk pipe 5 and a pipe 6 with a centrifugal pump 7, a discharge pipe 8 connected to a milk collector 9, inside of which atmospheric pressure is maintained through the open end of the hose 10. A volume pump 12 is installed between the milk collector 9 and the washing pipe 11. The washing pumps 11 are fixed to the washing pipe 11 collectors 13 on which milking cups are mounted 14. A three-way valve 15 is mounted at one end of the pipe 11, and a thermostat 16 is attached to the hoses 17 and 18 for supplying cold and hot washing liquid, as well as a pneumatic valve 19. On the pipes of the refrigeration unit 20, to which a centrifugal pump 7 is connected, pneumatic valves 21 and 22 are installed. A pipe 23 is installed on the pipe 6, and a valve 25 is on the vacuum pipe 24. To control the pneumatic valve 19, the pneumatic valves 21 and 22, as well as the thermostat 16, the device is equipped with pipelines 26-29 with valves 30 and 31.

To enter the washing and disinfecting concentrated solutions into the device, a container 3 2 and a hose with a faucet, 33, are installed on the container 1.

The temperature controller 16 contains a mixing chamber 34 (Fig. 2), in the cavity of which a cylinder of the thermosensitive element 35 is inserted and fixed by the housing 36 of the temperature sensor. The housing 36 is hollow with chambers 37 and 38 separated by an axial orifice 39. An axial orifice 40 is installed at the end of the housing, and a calibrated hole 41 is drilled in the side wall of the housing connecting the chamber 38 with the atmosphere and closed by a filter mesh 42. The housing 36 of the temperature sensor is equipped with three nozzles; the nozzle is connected through a hose 45 of the pneumatic clamp 46, and it is connected 29 and 24. In the line of the nozzle 47 (Fig. 2) is installed 30 control (Fig. 1).

case 36 (Fig. 2) thermal sensors 10

5θ chamber 38 with a branch pipe branch pipes with a vacuum-conduit of vacuo47 and a damma crane

In the ka there is a needle rod 49 coupled to a heat-sensitive element 35. When this element is heated, the needle rod has the possibility of axial movement in the holes of the chokes 39 and 40. The needle rod 49 is loaded with a spring 50.

The pneumatic clamp 46 comprises a housing 51 with lipid-65 hoses located therein) 17 and 18 for supplying hot and cold water to the mixing chamber 34. A pneumatic cylinder 52 is installed on the pneumatic clamp housing 51, inside of which there is a rod 53 with a cuff β4. The rod 53 of the pneumatic cylinder 52 is rigidly connected to a closed frame 55, abutting against the end of the adjusting screw 56 screwed into the housing 51. Between the hoses 17 and 18 in the housing 51 there is an adjusting device 57 for pre-compression of the hoses 17 and 18, made in the form of a plate rigidly connected to case 51. To discharge the mixture of hot and cold water from the temperature controller, the mixer chamber 34 is provided with an opening 58. A spring 59 is installed in the pneumatic cylinder 52.

The device operates as follows.

Flushing the milk line begins with rinsing it with warm water. To do this, the three-way valve 15 (Fig. 1) is installed in the position of draining the liquid into the sewer, the milking cups 1 4 are fixed on the washing manifolds 13, the taps 23 and 31 are opened and the valve 25 turns on the supply of vacuum pipes to the system. In this case, the centrifugal pump with pneumatic fans 21 and 22. disconnected from the cooling jacket of the milk receiver 9 and the refrigeration unit 20 and connected to the use of the milk line in the washing system, and the pneumatic valve 19 reports the flushing pipe 11 with the hot and cold water pipes 17 and 18 through the temperature controller 16.

Under the action of rarefaction in the flushing pipe 11 through hoses 17 and 18 (Fig. 2), hot and cold water flows into the mixing chamber 34 and to the heat-sensitive element 35. Washing element 35, water flows through the pipe 11 (Fig. 1) through the washing manifolds 13 into the milking cups 14, then into the milk pipe 5 and through the hose 4 flows into a closed container 1, from where it is pumped through the hoses 6 and 8 to the milk receiver 9 under atmospheric pressure. From the milk receiver 9 with a volume pump 12, the water contaminated with milk residues is pumped out to the drain through the tap 15. Rinsing the milk line with water to flush the milk residue in it. At the same time, the water entering the washing pipe 11, washes the heat-sensitive element 35 (Fig. 2) and heats it. The needle rod 49 moves and controls the flow of vacuum into the pneumatic clamp 46 through the throttle hole 39 (the tap 30 is closed during this washing period). A higher temperature of the water mixture in the mixing chamber. 34 causes a more heat-sensitive element 35 and a longer stroke of the rod 49, the needle of which closes the hole 39 to a greater extent, due to which a reduced vacuum enters the cuff 54 of the pneumatic cylinder (due to suction through hole 41 of atmospheric air) '. The hot water supply hose 17 is compressed by the action of the spring 59, and the cold water supply hose 18 relaxes. The temperature-sensitive element 35 now receives a mixture of water with a lower temperature. When the temperature drops above the set limits, the temperature-sensitive element 35 cools down, the needle rod 49 under the action of the spring 50 slightly opens the hole of the axial throttle 39, increasing the depth of the vacuum entering the clamp cylinder 46. The cuff 54 of this cylinder with the stem 53 relaxes the hose 17 and compresses the hose 18 somewhat , because of which the supply of hot water increases, and cold water decreases, which leads to an increase in the temperature of the mixed water. The degree of heating used for rinsing the water can be adjusted by changing the length of the needle rod 49, for which. the needle is connected to the stem, for example, by a threaded connection.

To proceed to the next stage of washing (circulation washing and disinfection of the milk line of the milking machine), the valve 15 (Fig. 1) is set to the position where the drain is closed and the pump 12 is connected to the washing pipeline 11 (the valve 23 is closed and the valve 30 open). Now the incoming water is collected in the tank 1.40 When the tap 30 is open, the vacuum through the hose 20 is supplied to the power of the throttle 40 (Fig. 2) of the thermostat. The working depth vacuum through the pipe 43 through the pipe 44 enters the pneumatic cylinder 52 of the pneumatic clamp 46. The cuff 54, overcoming the resistance of the spring 59, moves to the left by means of the rod 53 with the frame 55 and relaxes the hot water supply hose 17 and compresses the cold water supply hose 18. This ensures that hot water is introduced into the flushing pipe. The heat-sensitive element 35 is heated by moving the needle rod 49 to the left, which passes through the opening of the throttle 39, closing it, and enters the hole of the throttle 40, adjusting the vacuum depth in the chamber 38, and therefore the output signal to the pipe 45 of the pneumatic clamp 46, thereby as before, the new temperature regime of the water entering the device. The required range of water temperature in this case can be - water of water, which can be adjusted by changing the distance between the axial inductors 40 and 39, for example, by moving the pipe 47 in the housing 36.

After filling the tank to the required level, the supply to the system is stopped, for the tap 31 (Fig. 1), it closes, and the tap 19 is closed. A container 32 is installed on the tank 1 filled with concentrated detergent and disinfectant solutions. When the tap 33 is opened under vacuum from the can 32 the liquid is pumped into the tank 1. After the complete flow of the liquid, the valve is closed. By opening the valve 23, the liquid is circulated through the pipe system and equipment of the milk line. After the set • circulation flushing time has elapsed, the three-way valve 15 is set to drain into the sewer. At the same time, close the valve 30 and open the valve 31. This ensures that the pneumatic valve 19 is opened to supply water to the flushing pipe 11 and that the axial reactor 40 (Fig. 2) is stopped by vacuum, only the axial reactor 39 is energized. The input signal to the pump is not vacuum 46 in the form of a vacuum decreases. Under the action of the spring 59, the frame 55, using the cuff 53, moves to the right, the hot water hose 17 and the cold water hose 18.

water arrives, the less heat-sensitive element 35 is cooled, under the action of the spring 50, the needle rod 49 moves to the right (Fig. 2), providing an input to the operation of the throttle 39 and supply to the pneumatic. clamp 46 of the same signal as in the first stage of washing - rinsing the milk line: the temperature of the supplied water in this final stage of washing rinsing with warm water after washing with a washing and disinfecting solution is automatically set to the same as in the first stage.

After the end of the set time for final rinsing, the device is turned off by turning the valve 25 (Fig. 1) and turning off the drive of the vacuum pump.

The proposed device is simple in design and convenient to operate.

and stem pinching while relaxing In a heated mixer,

Claims (3)

The invention relates to agriculture, in particular, to a device for circulating washing of a milking installation. A device for washing a milking machine is known, which contains a milk collector connected to a vacuum source, centrifugal and volumetric at its mouths and a washing bath tl. However, this device does not automatically adjust the water temperature during the flushing process. It is also known a device for circulating washing of the milk line of a milking machine, containing a closed container connected by pipelines to a vacuum source, a milk line and a centrifugal pump, whose discharge pipe is connected to a milk collector and a temperature controller t21. The known device is difficult to operate and does not automatically control the temperature of the washing liquid. The purpose of the invention is to automatically control the temperature of the washing liquid. The goal is achieved by the fact that the thermostat is made in the form of a hollow body with an axial throttle dividing it into two chambers, communicated by a pipeline with a vacuum source and connected to the said housing of the mixing chamber, having hoses for fresh and cold washing liquid, On which a pneumatic clamp is installed, in one of the chambers there is a spring-loaded needle rod connected with a temperature-sensitive element located in the mixing chamber. And the other chamber has an axial throttle and. a calibrated orifice through which it communicates with the atmosphere and through the pipeline with a pneumatic clamp. Moreover, the axial throttles of the thermal sensor are installed with the possibility of changing the distance between them. In addition, the needle stem of the temperature-sensitive element is made adjustable in length. FIG. 1 shows schematically a device for circulating washing of the milk line of a milking machine; in fig. 2 - thermostat, longitudinal section. The device for circulating washing of the milking line of the milking installation contains a sealed container I (Fig. 1) connected by a pipe 2 with an air separator 3 of a vacuum installation, a hose 4 with a milk line 5 and a pipe 6 with a centrifugal pump 7 / discharge pipe 8 connected to the milk collection container 9, inside which, through the open end of the hose 10, atmospheric pressure is maintained. A volumetric volume 12 is installed between the milk collection container 9 and the flushing pipe 11. A flushing is fixed to the flushing pipe II These collectors 13, on which the teat cups are installed 14. At one end of the pipeline 11, a three-way valve 15 is mounted, and at the other - a thermostat 16 hoses 17 and 18 for supplying cold and hot washing fluid, as well as a pneumatic tap 19. On the pipes of the refrigeration unit 20 To which the centrifugal pump 7 is connected, pneumatic valves 21 and 22 are installed. Pipe 6 has a crane 23, and vacuum pipe 24 has a valve 25. The device is equipped with pipelines 26 to control the pneumatic crane 19, pneumatic valves 21 and 22, and also the temperature regulator 16 -29 with cranes 30 and 31. For input and a can 32 and a hose with a tap, 33, are installed in the device for washing and disinfecting concentrated solutions on the tank 1. The temperature controller 16 contains a mixture of a spray chamber 34 (FIG. 2), in the bands of which the cylinder of the temperature-sensitive element 35 is inserted and fixed by the housing 36 of the thermal sensor. Case 36 is hollow with chambers 37 and 38, separated by an axial throttle 39. An axial throttle 40 is installed at the end of the kopny ca, and a calibrated hole 41 connecting the chamber 38 with the atmosphere closed by a filter mesh 42 is drilled in the side wall of the case. branch pipes; pipe 43 connects camera 38 through hose 44 to pneumatic clamping pipe 45, and pipes 47 and 48 connect it to vacuum wires 29 and 24. A control valve 30 is installed in the vacuum supply line to pipe 47 (fig. 2) (fig. one). In the housing 36 (Fig. 2) of the thermal sensor, there is located a needle rod 49, which is mated with a temperature-sensitive element 35. When this element is heated, the needle rod has the possibility of axial movement in the holes of the throttles 39 and 40. The needle-shaped piece 49 is loaded with a spring 50. Pneumatic clamp 46 comprises a housing 5 with hoses disposed therein (, P by bores / 17 and 18 for supplying hot and cold water to the mixing chamber 34. On the housing 51 of the pneumatic clamp, there is a pneumatic cylinder 52, inside of which is located a rod 53 with a cuff 4. A rod 53 of the pneumatic cylinder 52 rigidly connected with a closed frame 55 abutting against the end of an adjusting screw 56 screwed into the housing 51. Between the hoses 17 and 18 in the housing 51 an adjusting device 57 for pre-compressing the hoses 17 and 18, made in the form of a plate rigidly connected to the housing 51, is installed. hot and cold water from the thermostat of the faucets on the chamber 34 is provided with a hole 58. In the pneumatic cylinder 52 a spring 59 is installed. The device works as follows. Washing the milk line begins with rinsing it with warm water. For this, the three-way valve 15 (FIG. 1) is placed in the position of draining the liquid into the sewage system, the teat cups 14 are fixed on the flushing headers 13, the taps 23 and 31 are opened and the valve 25 turns on the supply of vacuum pipes to the system. At the same time, the centrifugal pump by pneumatic valves 21 and 22 is disconnected from the cooling jacket of the milk receiver 9 and the refrigeration unit 20 and connected to the use of the milk line in the washing system, and the pneumatic crane 19 communicates the flushing pipe 11 with pipelines 17 and 18 of hot and cold water through the thermostat 16 Under the action of a vacuum in the flushing pipe 11, hoses 17 and 18 (Fig. 2) enter hot water and cold water into the mixing chamber 34 and to the temperature-sensitive element 35. Wash element 35, water through line 11 (Fig. 1) through flushing headers 13 enters the teat cups 14, then into the milk conduit 5 and through the hose 4 flows into a closed container 1, from where it is pumped out by the pump 7 through hoses 6 and 8 into the milk receiver 9 under atmospheric pressure. From the milk receiver 9 with a volumetric pump 12, the water contaminated with milk residues is pumped to a drain through the valve 15. The milk line is rinsed with water to flush out the milk residues in it. In this case, water, entering the flushing pipe 11, washes the temperature-sensitive element 35 (FIG. 2) and heats it. The needle rod 49 moves and regulates the flow of vacuum into the pneumatic clamp 46 through the throttle hole 39 (the valve 30 is closed during this period of the washer). The higher the temperature of the water mixture in the mixing chamber. 34 causes greater heating of the temperature-sensitive element 35 and a greater stroke of the rod 49, the needle of which largely closes the opening 39, due to which a reduced vacuum enters the cuff 54 of the pneumatic cylinder through pipe 44 through the opening 41 of atmospheric air). The hot water supply hose 17 is compressed by the action of the spring 59, and the cold water supply hose 18 is relaxed. Thermo-sensitive element 35 is now supplied with a mixture of water with a lower temperature. When the temperature drops above the established limits, the temperature-sensitive element 35 cools, the needle rod 49 under the action of the spring 50 somewhat opens the hole of the axial throttle 39, increasing the depth of vacuum supplied to the pneumatic cylinder of the clamp 46. The cuff 54 of this cylinder with the rod 53 relaxes the shaft 17 and squeezes the hose somewhat 18, due to which the supply of hot water increases and the cold water decreases. leading to higher mixed water temperatures. The degree of heat used for rinsing water can be adjusted by changing the length of the needle stem 49, for the needle the needle is connected to the stem, for example, a threaded connection. To go to the next stage of washing (circulation washing and disinfection of the milking line of the milking plant), tap 15 (Fig. 1 is set to the position at which it is closed, and pump 12 is connected to the wash pipe 11 (tap 23 is closed, and The crane 30 is open.) Now the water is collected in the tank. When the valve 30 is opened, the vacuum on the rail 20 is supplied to the power supply of the throttle 40 (Fig. 2) of the thermostat. The working depth vacuum through the pipe 43 and the pipeline 44 to the pneumatic clamp 52. Cuff 54, breaking resistance pru 59, through the stem 53 with the frame 55, moves to the left and relaxes the hot water supply hose 17 and squeezes the cold water supply hose 18. This ensures that the hot water flushing line 35 is heated in. The temperature-sensitive element 35 heats up by moving the needle stem 49 to the left which passes through the opening of the throttles 39, closing it, and enters the opening of the throttles 40, adjusting the depth of the vacuum in the chamber 38, and hence the output signal to the nozzle 45 of the pneumatic clamp 46, thereby providing, as before, the new temperature regime post water falling into the device. The required water temperature range can then be adjusted by changing the distance between the axial throttles 40 and 39, for example, by moving the nozzle 47 in the housing 36. After filling the tank 1 with water to the required level, the water supply to the system is stopped, for which the tap 31 (Fig 1) close that provides the closure and the crane 19. The container 1 is installed filled with canister 32 filled with concentrated washing and disinfecting solutions. When the valve 33 is opened under the action of vacuum from the can 32, the liquid is pumped into the container 1. After complete Draining a liquid faucet 33close. By opening the valve 23, the fluid is circulated through the piping system and the equipment of the milk line. After the prescribed time of circulation washing is three-way, the valve 15 is installed in the position of draining the liquid into the sewage system. At the same time, the valve 30 is closed and the valve 31 is opened. This ensures that the pneumatic valve 19 opens to supply water to the flushing pipe 11 and stops feeding axial throttle 40 (Fig. 2) with vacuum, only axial throttle 39 is fed. The input signal to the vacuum clip 46 in the form of a vacuum is reduced. Under the action of the spring 59, the frame 55 is moved to the right by the cuff 54 and the stem 53, pinching the hot water hose 17 and relaxing the cold water hose 18. Water is less heated to the mixer 34, the temperature-sensitive element 35 is cooled, under the action of the spring 50, the needle rod 49 moves to the right (Fig. 2), providing input to the operation of the throttles 39 and supply to the pneumatic valve. A clip 46 of the same signal as in the first stage of washing — rinsing the milk line: the temperature of the supplied water in this final stage of washing is rinsing with warm water after the circulation washing with detergent and disinfectant solutions — automatically set the same as in the first stage. After the end of the set time for the final rinsing, the device is turned off by turning the tap 25 (Fig. 1) and turning off the vacuum pump drive. The proposed device is simple in design and convenient to operate. Claim 1. Device for circulating washing of the milk line of the milking machine, containing a closed container connected by pipeline source of vacuum, milk line and centrifugal pump, the discharge pipe of which is connected to the milk collector, and the thermostat, characterized in that, in order to automatically control the temperature of the washing liquid, the thermostat is made in the form of a half body with an axial throttle dividing it into two chambers piped with a vacuum source and connected to the casing of the mixing chamber, having hoses for hot and cold washing fluid, on which a pneumatic clamp is installed, one A spring-loaded needle rod fitted to a temperature-sensitive element located in the mixing chamber is installed in the chambers, and another chamber It has an axial throttle and a calibrated orifice, through which it communicates with the atmosphere and, through a pipeline, with a pneumatic clamp. 2, the device according to claim 1, characterized in that the axial chokes of the thermal sensor are installed with the possibility of changing the distance between them. " 3. The device according to claim 1, about tl and which is that the needle stem of the temperature-sensitive element is made adjustable in length. Sources of information taken into account in the examination 1. USSR author's certificate number 587911, cl. A 013 7/00, 1975. 2. Patent of the USSR No. 359775, cl. A 013 7 / 00,1970.