Apparatus for producing nitrogen under high pressure

Details Apparatus for producing nitrogen under high pressure Apparatus for producing nitrogen under high pressure

1995-01-26

1996-09-24

Recla, Henry J.

Fluent material handling, with receiver or receiver coacting mea

Automatic control of flow cutoff or diversion

In gas filled receivers

141 67, 141114, 141313, 553851, 264 37, 264 85, 264572, 425 74, B65B 130, B65B 328, B65B 5706, B65B 5714

Patent

active

055581412

ABSTRACT:
The apparatus includes an air compressor (13), which is cooled by direct oil injection, and an air cooler (14) connected downstream of it which serves as a condensate separator. Connected to it is a heat exchanger (18) which is heated by the waste heat from the oil discharged from the air compressor (13). The temperature of the air is raised thereby to a level at which the separators (4) downstream thereof develop their optimum efficiency. The nitrogen flowing out of the separators (4), the purity of which is predetermined by a downstream throttle (3), flows into an inflatable reservoir (5) which is connected to the suction side of a high pressure compressor. The latter discharges into a high pressure storage container which for its part supplies an injection moulding machine. The nitrogen is conveyed in a closed circuit between the injection moulding machine and the inflatable reservoir. The control of the installation ensures that only as much nitrogen need be produced as is necessary to compensate for leakage losses from the circuit.

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