Vacuum system apparatus and method

A vacuum system 1 comprising a vacuum pump 3 and a heat exchanger 7 for receiving a heat transfer gas, the heat exchanger thermally coupled to the vacuum pump to absorb thermal energy therefrom. The heat transfer gas may be a pump purge gas. The purge gas may be selectively supplied to the vacuum pu...

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Bibliographic Details
Main Authors Malcolm William Gray, Sivabalan Kailasam
Format Patent
LanguageEnglish
Published 19.01.2022
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS
WEAPONS
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Summary:A vacuum system 1 comprising a vacuum pump 3 and a heat exchanger 7 for receiving a heat transfer gas, the heat exchanger thermally coupled to the vacuum pump to absorb thermal energy therefrom. The heat transfer gas may be a pump purge gas. The purge gas may be selectively supplied to the vacuum pump or pump exhaust, the supply conditions being determined by a controller 31. The system may include a gas heater 11 disposed between the heat exchanger and gas outlet port, for heating the heat transfer fluid. The supply of gas may be controlled by a control valve 9, which may reduce supply of gas to reduce absorption of heat from the pump in response to a signal indicating the pump is operating in low load condition. The system may comprise a cooling block 39 configured to receive a liquid coolant, the block being independent of the heat exchanger.
Bibliography:Application Number: GB20200008675