Refrigerated receiver
AssigneePaul Mueller Company
InventorsPaul Mueller, Daniel C. Manna, Ray A. Prine
Life of this patent
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Abstract
A refrigerated receiver in an automatic milking system has a coiled plate type heat exchanger disposed therein for pre-cooling milk before it is pumped into a milk cooling and storage tank. The heat exchanger is adapted for use in a direct expansion refrigeration system which can be operated in a heating mode to heat wash water as it is circulated through the system. The coiled plate type heat exchanger can be cleaned and inspected while in place inside the generally cylindrically shaped receiver unit as it is substantially vertically oriented with a generally annular space between successive turns of the coiled plate.
Claims29
A refrigerated receiver for cooling milk and separating it from vacuum in an automatic milking line, said receiver being substantially cylindrically shaped with a heat exchanger disposed therein, said heat exchanger comprising a coiled plate having multiple turns, a warm milk inlet at the top of the receiver and positioned to direct the flow of the milk directly onto the coiled plate, a vacuum outlet, a cool milk outlet at the bottom of the receiver, means to operate the heat exchanger in a heating mode during a cleaning cycle to heat a cleaning fluid as it is circulated through the receiver, and means to agitate the cleaning fluid in said receiver as it is being circulated therethrough.
The receiver unit of claim 14 wherein said sensing means includes at least one probe extending into said receiver.
A refrigerated receiver for cooling milk and separating it from vacuum in an automatic milking line, said receiver being substantially cylindrically shaped with a heat exchanger disposed therein, said heat exchanger comprising a coiled plate having multiple turns, at least one bracket secured to the upper edge of said turns of the plate to maintain them in a spaced apart relationship, said bracket mounting the heat exchanger to a side wall of the receiver, a warm milk inlet at the top of the receiver and positioned to direct the flow of the milk directly onto the coiled plate, a vacuum outlet, a cool milk outlet at the bottom of the receiver, liquid level probes extending into the interior of the receiver with means to control the withdrawal of milk from said milk outlet, means to operate the heat exchanger in a heating mode during a cleaning cycle to heat a cleaning fluid as it is circulated through the receiver, and means to intermittently vent the receiver as it is being cleaned.
A refrigerated receiver for cooling milk and separating it from vacuum in an automatic milking line, said receiver being substantially cylindrically shaped with a heat exchanger disposed therein, said heat exchanger comprising a coiled plate having multiple turns, said heat exchanger including a superheating section substantially separated from the rest of the heat exchanger by baffle means, a warm milk inlet at the top of the receiver and positioned to direct the flow of the milk directly onto the coiled plate, a vacuum outlet, a cool milk outlet at the bottom of the receiver, and means to operate the heat exchanger in a heating mode during a cleaning cycle to heat a cleaning fluid as it is circulated through the receiver.
Dependencies are inferred from the claim text.