Other

Mile High Equipment Company

Wilkerson Corporation

Leon R Van Steenburgh, Jr

A refrigerant reclaim system includes a compressor, a heat exchanger, an oil separator, a condenser, a chill tank, a filter-dryer and a cooling coil in the chill tank. Refrigerant to be reclaimed is drawn through the cold side of the heat exchanger, converted to a gas which is discharged into the oil separator where the gas is directed upwardly in an expanding stream. The flow of the stream is abruptly interrupted to separate oil from refrigerant. The gaseous refrigerant is passed from the oil separator through the compressor, the hot side of the heat exchanger, a condenser and into the chill tank in a liquid state. Liquid refrigerant flows from the bottom of the chill tank through a filter-dryer, an expansion device, converting it to gas, through a cooling coil, submerged in liquid refrigerant in the chill tank, into the stream exiting the oil separator and back to the compressor. Controls are provided for shutting down the cold side of the heat exchanger and the oil separator while the chill tank, filter-dryer, cooling coil, compressor and condenser continue to be active.

Refrigerant reclaim method and apparatus

A compact refrigerant reclaim apparatus that is capable of removing refrigerant from a refrigeration system during repairs in order to remove oil and other impurities from said refrigerant and being capable of returning the refrigerant to the refrigeration system in a clean state. The apparatus includes an oil separator that includes oil separation and oil accumulator means.

Compact refrigerant reclaim apparatus

A refrigerant reclaim system including a compressor, a heat exchanger, an oil separator, a condenser, a chill tank, a filter-drier and a cooling coil in the chill tank. Such refrigerant reclaim system including means for evacuating gaseous refrigerant after the removal of all liquid refrigerant, means for accumulating residual oil in the gaseous refrigerant and returning it to the compressor motor, and means for controlling the inlet and outlet systems to prevent flow of refrigerant except when desired.

Refrigerant reclaim apparatus

A refrigerant storage apparatus including one or more holding tanks for containing refrigerant, and a float control device capable of preventing further access of refrigerant to the holding tanks when a certain predetermined level of refrigerant has been reached within the holding tanks.

Safety refrigerant storage cylinder

The refrigeration system includes a refrigerant reservoir, a condenser bypass valve of the gas pressure diaphragm type and a diaphragm-type hot gas bypass valve for supplying hot gaseous refrigerant directly from the compressor or refrigerant receiver to the evaporator, bypassing the expansion valve. The bypass valves may be hermetically housed in the refrigerant reservor. The system is useful in a refrigerated gas separation apparatus such as a refrigerated dryer for compressed air, which includes a conditioner in the form of a shell and tube heat exchanger which cools incoming hot moist compressed air and warms outgoing cold dry air. The cooled moist gas is refrigerated by contact with a refrigeration system evaporator, in the form of a finned baffled coil, and the condensed moisture is removed in a moisture separator including a central conical baffle and peripheral longitudinal hooked scraper bars or baffles defining channels for collecting moisture and directing the liquid to a sump.

Refrigeration system with bypass valves

A refrigerated gas separation apparatus such as a refrigerated dryer for compressed air, includes a conditioner in the form of a shell and tube heat exchanger which cools incoming hot moist compressed air and warms outgoing cold dry air. The cooled moist gas is refrigerated by contact with a refrigeration system evaporator, in the form of a finned baffled coil, and the condensed moisture is removed in a moisture separator including a central conical baffle or shroud and peripheral longitudinal hooked scraper bars or baffles defining channels for collecting moisture and directing the liquid to a sump.

Refrigerated gas separation apparatus

An ice cube making machine having an evaporator plate on which ice is to be made in a vertical plane, the plate having a cube forming lattice structure on one side thereof and an evaporator coil with the inlet and outlet for fluid refrigerant being disposed to freeze water evenly in said lattice structure and to enhance the thawing of the cubes for renewal therefrom.

Evaporator plate for ice cube making apparatus

Ice cube making apparatus of the type having a vertically disposed evaporator plate with a lattice structure on side thereof in which cubes are formed as water runs down the plate. The ice making cycle is controlled by a timer which is actuated by a pressure responsive switch in the refrigerant line and, upon timing out of the ice forming portion of the cycle, hot gas is delivered to the evaporator to detach the ice slab from the evaporator plate and a mechanical harvest plunger applies a uniform force to the ice slab to overcome capillary forces retaining said ice slab on the evaporator plate.

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Denver, CO, United States of America

Leon R Van Steenburgh, Jr