RU2481767C2 - Milk meter of vacuumised pipeline milking plant - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture. The proposed milk meter comprises a connected to milk line 1 inlet chamber 2, which through the dividing valve 3 is connected with the measuring chamber 4, at which output a hose 5 is mounted. In the measuring chamber a float 16 is mounted. To the exit of the measuring chamber a diverting air tube 18 and a diverting milk tube 20 are connected through the tee-joint 17, which are connected with the outputs to the milk line 1. The diverting air tube 18 is equipped with a valve 19. At the diverting milk tube 20 a check valve 21 is mounted. In the inlet chamber 2 a float 6 is located, which is connected by the stem 7 to the valve 8 mounted in the pipe 9 to which the pulsator 10 in connected. The counter mechanism 11 and the pneumatic relay 12, connected by one input with the milk line 1 and by the other - with variable vacuum tube 13, are connected to the pulsator 10. The variable vacuum tube 13 extends with its opening 14 under the dividing valve 3 in the measuring chamber 4. The valve 15 of manual control of air inlet is located on the tube of variable vacuum 13.

EFFECT: invention provides an improved quality of washing the device, increased accuracy and reliability of the meter operation, stabilisation of the vacuum mode, improved mode of milk transportation.

Description

The invention relates to agriculture, in particular to a metering device for milk at milking plants.

A known milk meter ADM-52.000, which is part of milking units with a milk pipe ADM-8A-1-2, contains a receiving and measuring chamber, a float assembly with a valve and a tube having an opening for air inlet into the metering chamber and a counting mechanism (Operating Instructions on milking units with the ADM-8A-1-2 milk line, 1980).

The disadvantages of the known counter are: unreliable operation of the float assembly allowing air to enter the metering chamber with its subsequent suction in the milk pipe, causing turbulization and foaming of the milk flow; wear of the tube tip of the float assembly, leading to air leaks into the measuring chamber, additional negative impact on milk and destabilization of the vacuum regime of the milking unit; unreliable operation of the counting mechanism and insufficient accuracy of the milk metering, as well as the difficulty of washing individual parts of the meter.

The closest in technical essence to the present invention is a milk meter containing a receiving and measuring chambers communicated through a hole blocked by a separation valve, mounted on a rod with a valve, a float, a pulsator (pulse generator), a pneumatic relay, an alternating vacuum tube and a counting mechanism (RF Patent 2048075 IPC A01 J / 01, published on November 20, 1995).

The most significant drawbacks of this counter are the unreliable operation of the air intake system and separation by means of a separation valve, a measuring chamber from the reception, accompanied by air leaks into the receiving chamber and the milk pipe, as well as the insufficient accuracy of the formation of a single portion of the measured volume of milk.

The objective of the invention is to increase the reliability and accuracy of the device, improving the quality of transportation of milk, reducing its contact with air and foaming, improving the quality of washing the device.

As a result of the use of the present invention, the reliability and accuracy of the milk meter are improved, the mode of transportation of milk is improved and the negative impact on it is reduced, the vacuum mode in the milk pipe is stabilized and the washing quality of the device is improved.

The above technical result is achieved in that in the proposed milk meter containing a receiving chamber connected to the evacuated milk line (milk line), which is connected through a separation valve to a measuring chamber, a hose is installed at the outlet, and a float connected to the valve in the receiving chamber installed in the pipe to which the pulsator connected to the counting mechanism and pneumatic relay is connected; the latter, in turn, is connected to the receiving chamber, and through the variable vacuum tube with an air intake valve installed on it, is connected to the measuring chamber so that the tube opening is located under the separation valve, while the measuring chamber is equipped with a float valve, and to its outlet a tee is connected via a hose with an outlet air tube blocked by a valve and an outlet milk tube, with a check valve located on it, and the outlets of both tubes are connected to the milk line.

The essence of the invention is illustrated in the drawing, which shows a General diagram of a milk meter of a vacuum milk line.

The counter contains a receiving chamber 2 connected to the evacuated milk line (milk line) 1, which, through a separation valve 3, is connected to a measuring chamber 4, at the outlet of which a hose 5 is installed, and in the receiving chamber there is a float 6 connected by a rod 7 with a valve 8 installed in a pipe 9, to which a pulsator 10 is connected, connected with a counting mechanism 11 and a pneumatic relay 12, which is connected by one inlet to the milk line, and the other to an alternating vacuum tube 13 exiting through its opening 14 into a measuring chamber under the separation a valve, while on the variable vacuum tube there is a valve 15 for manual air inlet into a metering chamber equipped with a float valve 16, to the outlet of which a tee 17 is connected with a outlet air pipe 18, which is blocked by a valve 19 and a discharge milk pipe 20, with her non-return valve 21. In this case, the outputs of both tubes are connected to the milk line.

The proposed milk meter of the evacuated milk line works as follows: milk is evacuated through the evacuated milk line (milk line) 1 to the receiving chamber 2 and through the open isolation valve 3 to the measuring chamber 4 and the hose connected to it 5. As the milk level rises in the receiving chamber, the float 6 pops up, moving the rod 7, and opens the valve 8, connecting the receiving chamber through the pipe 9 with the pulsator 10. The latter starts to work and feed pulses to the counting mechanism 11 and pneumatic relay 12, which connects the measuring chamber alternately with atmospheric pressure or with a vacuum line by means of an alternating vacuum tube 13 exiting through its opening 14 under the isolation valve. For manual control of the air inlet, a valve 15 is installed on the variable vacuum tube. When atmospheric pressure is applied, the separation valve, when raised due to the float valve 16, separates the measuring chamber from the receiving chamber, while the milk is forced out by the incoming air from the measuring chamber into the milk line until until the float valve 16 drops down and blocks the outlet of the measuring chamber, preventing further pumping of milk, which stabilizes the volume of the pumped portion of milk and prevents the suction of air and in the milk line. Moreover, in the outlet air pipe 18 connected to the tee 17 (with the valve 19 closed) and the milk outlet pipe 21 with a check valve 22 installed on it, a water shock will occur, the back wave of which will tightly close the check valve, which also additionally acts from above the column pressure liquids, preventing the reverse discharge of milk into the measuring chamber. The energy of hydroblow increases the air pressure in the exhaust air pipe 18, blocked by the valve 19, equalizing the pressure on the float valve of the measuring chamber and releasing it for subsequent work. When the measuring chamber communicates with the vacuum, the separation valve opens and the milk fills it again. The cycle repeats. When the milk level in the receiving chamber 2 decreases, the float 6 drops, the valve 8 closes and the pulsator 10 stops working. To empty the counter from milk residues after milking, when the milk level is below the float 6, the operator periodically opens the valve 15 and the air displaces the milk through the hose 5 and the outlet pipe 20 into the milk line. When washing the meter, the valve 19 partially opens, providing additional washing of the exhaust air tube and washing the receiving chamber with the flow of washing liquid removed from the milk line, which allows increasing the degree of filling of the receiving chamber and improving the quality of washing the device.

Claims (1)

A milk meter containing a receiving chamber connected to the milk line, which is connected through a separation valve to a measuring chamber, at the outlet of which a hose is installed, and a float is located in the receiving chamber, connected by a rod to a valve installed in the pipe to which a pulsator connected to the counting mechanism is connected and a pneumorelayer, which is connected at one inlet to the milk line, and at the other to an alternating vacuum tube exiting through its opening for the dividing valve in the measuring chamber, while on the alternating vacuum tube a valve for manual control of the air inlet is located, characterized in that the metering chamber is equipped with a float valve, and a tee is connected to its outlet by a hose with a discharge air pipe blocked by a valve and a discharge milk pipe with a check valve located on it, and the outlets of both pipes connected to the milk line.