Controlling vacuum level with a two-level vacuum system...

Details Controlling vacuum level with a two-level vacuum system... Controlling vacuum level with a two-level vacuum system...

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 49/06 (2006.01) A01J 5/04 (2006.01)

Patent

CA 2096846

A low-energy-consuming apparatus and method for controlling vacuum levels in machine milking and other vacuum systems subject to air leakage utilizes in combina- tion a high vacuum reserve, a low-vacuum end (pipelines), a dual vacuum controller positioned between the high-vacu- um reserve (20) and the low-vacuum end and an adjustable speed drive (ASD) motor (26) on a vacuum pump (28) to regulate the delivered air to match the air usage in the low- vacuum end. The dual vacuum controller senses vacuum disturbances in the low-vacuum end and adjusts the flow rate of air from the low-vacuum end to the high-vacuum re- serve rather than using external air makeup, thus providing a controlled vacuum with minimum pressure variance and energy input. Energy savings and demand reduction of about 50 percent (50 %) during milking are realized under the new system.

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