公开(公告)号：US5339647A

公开(公告)日：1994-08-23

申请号：US119730

申请日：1993-09-10

Applicant: Luther D. Albertson, III ,  Walter R. Key ,  Mark A. Stansbury

Inventor： Luther D. Albertson, III ,  Walter R. Key ,  Mark A. Stansbury

IPC: F25B45/00

CPC classification number: F25B45/00 ,  F25B2345/002

Abstract: A portable apparatus for recovering high-pressure CFC refrigerants in vapor form includes a removable tank for receiving and storing the liquefied refrigerant to be recovered and two refrigeration circuits. The first refrigerant circuit processes the refrigerant to be recovered and includes a compressor and a condenser. The removable tank acts as the evaporator of the first refrigeration circuit. The second refrigeration circuit is included to cool both the condenser of the first refrigeration circuit and the removable tank. This second refrigeration circuit includes a compressor, a condenser and an evaporator, and contains a second refrigerant physically isolated from the refrigerant to be recovered. Both the condenser of the first refrigeration circuit and the evaporator of the second refrigeration circuit are preferably coil shaped, with the condenser coil preferably coaxially arranged within the evaporator coil. The condensing coil/evaporator coil arrangement substantially surrounds the removable tank to assist in cooling that element. The compressor of the first refrigeration circuit is preferably capable of compressing vapor refrigerants to a pressure of at least about 300 psi. Wheels and handles to assist in moving the liquid refrigerant recovery apparatus are also provided.

Abstract translation: 用于回收蒸汽形式的高压CFC制冷剂的便携式设备包括用于接收和存储待回收的液化制冷剂的可移除罐和两个制冷回路。 第一制冷剂回路处理要回收的制冷剂，并且包括压缩机和冷凝器。 可拆卸的罐用作第一制冷回路的蒸发器。 包括第二制冷回路以冷却第一制冷回路的冷凝器和可移除罐。 该第二制冷回路包括压缩机，冷凝器和蒸发器，并且包含与要回收的制冷剂物理隔离的第二制冷剂。 第一制冷回路的冷凝器和第二制冷回路的蒸发器优选为盘管形，冷凝器盘管优选同轴地设置在蒸发器盘管内。 冷凝线圈/蒸发器盘管装置基本上围绕可移除的罐以帮助冷却该元件。 第一制冷回路的压缩机优选能够将蒸气制冷剂压缩至至少约300psi的压力。 还提供了用于辅助移动液体制冷剂回收装置的轮和把手。

公开(公告)号：US5241837A

公开(公告)日：1993-09-07

申请号：US794460

申请日：1991-11-19

Applicant: Luther D. Albertson, III

Inventor： Luther D. Albertson, III

IPC: F25B43/04

CPC classification number: F25B43/043

Abstract: An auxiliary purge unit to be retrofitted to the existing purge unit of a low pressure refrigeration system includes a double-walled condenser portion, a pneumatic pressure chamber and a discharged-refrigerant tank. The double-walled condenser portion includes inner and outer walls with a chilled condensing coil disposed between the two walls, a stand pipe to create a reservoir of condensed refrigerant between the stand pipe and the inner wall, and an exhaust port for exhausting non-condensibles from the system. The pneumatic pressure chamber pressurizes the gas to be purged from the refrigeration system and delivers it to the chilled condensing coil. The discharged-refrigerant tank includes a float valve to prevent fluids from exiting the tank unless the valve is in the open position, and allows the elevated pressure of the system to be maintained. In operation, the gas to be purged from the system is pressurized, directed through the chilled condensing coil, and bubbled through the reservoir of liquid refrigerant.

Abstract translation: 要改造到现有的低压制冷系统吹扫单元的辅助净化单元包括双壁冷凝器部分，气动压力室和排出制冷剂罐。 双壁冷凝器部分包括内壁和外壁，冷凝冷凝盘管设置在两壁之间，立管用于在立管和内壁之间形成冷凝的制冷剂储存器，以及用于排出不可冷凝物的排气口 从系统。 气动压力室对从制冷系统中清除的气体进行加压并将其输送到冷冻冷凝盘管。 排出的制冷剂罐包括浮阀，以防止流体离开罐，除非阀处于打开位置，并允许保持系统的升高的压力。 在操作中，要从系统中清除的气体被加压，引导通过冷凝的冷凝盘管，并鼓泡通过液体制冷剂的储存器。