Recovery system for very high-pressure refrigerants
    2.
    发明授权
    Recovery system for very high-pressure refrigerants 失效
    非常高压制冷剂的回收系统

    公开(公告)号:US5722247A

    公开(公告)日:1998-03-03

    申请号:US728765

    申请日:1996-10-11

    CPC classification number: F25B45/00 F25B2345/001 F25B2345/002

    Abstract: An improved system for recovering and charging refrigerant of a refrigeration system. The system includes a series arrangement of two gas compressors that boost the pressure of the recovered refrigerant to a high enough level for storage in a DOT-3AA type cylinder. The recovered refrigerant is not condensed to the liquid state during recovery, nor is the cylinder chilled. The second high-pressure compressor includes a free-floating piston within a cylinder. The piston is hydraulically actuated. The system includes microprocessor control. The system is well suited for recovery of refrigerants such as R-13, R-23, R-503, and SUVA-95.

    Abstract translation: 一种用于回收和充满制冷系统的制冷剂的改进系统。 该系统包括两个气体压缩机的串联布置,其将回收的制冷剂的压力提高到足够高的水平以存储在DOT-3AA型气缸中。 回收的制冷剂在回收期间不会冷凝成液态,气缸也不冷凝。 第二高压压缩机包括气缸内的自由浮动活塞。 活塞是液压驱动的。 该系统包括微处理器控制。 该系统非常适用于回收制冷剂如R-13,R-23,R-503和SUVA-95。

    Pressure relief apparatus and method of use particularly for a
refrigeration system
    3.
    发明授权
    Pressure relief apparatus and method of use particularly for a refrigeration system 失效
    减压装置及特别用于制冷系统的方法

    公开(公告)号:US5673563A

    公开(公告)日:1997-10-07

    申请号:US676555

    申请日:1996-07-08

    CPC classification number: F16K17/162 F16K17/048 F16K37/0058 F25B49/005

    Abstract: The present invention relates to a pressure relief system that utilizes fluid released from a pressure relief valve to activate a sensor. In one form of the present invention a relatively confined passageway is in fluid communication with a reseatable pressure relief valve for protecting a condenser from overpressurization. The pressure relief valve allowing the release of fluid into the passageway at pressures below the overpressure threshold protection value of the valve. The released fluid is accumulated in the passageway and sensed by a sensor. Further, upon the pressure in the relatively confined passageway exceeding a predetermined value the passageway is vented to the environment.

    Abstract translation: 本发明涉及利用从压力释放阀释放的流体来激活传感器的压力释放系统。 在本发明的一种形式中,相对限制的通道与可重复的压力释放阀流体连通,用于保护冷凝器免于过压。 减压阀允许在低于阀的超压阈值保护值的压力下将流体释放到通道中。 释放的流体积聚在通道中并由传感器感测。 此外,在相对限制的通道中的压力超过预定值时,通道被排放到环境中。

    Mechanical pressure relief valve having a variable position outlet
    4.
    发明授权
    Mechanical pressure relief valve having a variable position outlet 失效
    具有可变位置出口的机械减压阀

    公开(公告)号:US5644930A

    公开(公告)日:1997-07-08

    申请号:US414292

    申请日:1995-03-31

    CPC classification number: F16L55/07 F25B43/043

    Abstract: A pressure relief valve that is rotatable relative to the pressure relief system to allow flexibility in the connection of an outlet aperture in the pressure relief valve with a vent pipe in the building. A circumferential channel being formed on a conduit comprising a portion of the valve to receive a plurality of fasteners thereon for attaching the valve body to the conduit. Further, a tension relief bar having a pair of apertures is utilized to manually control the movement of a valve member relative to a valve seat within the valve body. One of the apertures being positioned for receiving a locking pin therein to hold the valve member apart from the valve seat. The capability to rotate and separate the valve body from the conduit allows for flexibility in servicing and connecting the valve body to the conduit.

    Abstract translation: 压力释放阀,其可相对于压力释放系统旋转,以允许压力释放阀中的出口孔与建筑物中的排气管连接的柔性。 形成在导管上的圆周通道,其包括阀的一部分以在其上容纳多个紧固件,用于将阀体附接到导管。 此外,具有一对孔的张力释放杆用于手动地控制阀构件相对于阀体内的阀座的运动。 一个孔被定位成用于在其中接收锁定销以将阀构件与阀座隔开。 将阀体与管道旋转和分离的能力允许维修和连接阀体与导管的灵活性。

    Rupture disk fragment collection trap for refrigeration systems
    6.
    发明授权
    Rupture disk fragment collection trap for refrigeration systems 失效
    用于制冷系统的破裂盘片段收集阱

    公开(公告)号:US5577389A

    公开(公告)日:1996-11-26

    申请号:US288814

    申请日:1994-08-11

    CPC classification number: F25B43/043 F16L55/07 Y10T137/1789

    Abstract: The present invention relates to a rupture disk fragment collection trap for minimizing the loss of refrigerant from a mechanical refrigeration system. A mechanical refrigeration system generally includes a storage vessel for the storage of a refrigerant, which to comply with applicable safety codes requires a pressure relief unit for venting an over-pressurized storage vessel. The pressure relief unit includes a fragmentary carbon rupture disk that provides a mechanical seal to contain the refrigerant, prevent the infiltration of contaminants into the refrigeration system, and rupture to relieve the over-pressurized state of the storage vessel. A mechanical re-seating type pressure relief valve is positioned downstream from the carbon rupture disk to control the flow of refrigerant into the atmosphere. The valve and the rupture disk are connected in fluid communication by a sealed passageway containing a rupture disk fragment collection trap. The trap prevents fragments in the passageway following rupture disk breakage from interfering with the operation of the pressure relief valve. After the pressure in the passageway has dropped below a predetermined value the pressure relief valve closes to prevent any further escape of refrigerant into the atmosphere.

    Abstract translation: 本发明涉及一种用于使来自机械制冷系统的制冷剂损失最小化的破裂盘片段收集阱。 机械制冷系统通常包括用于储存制冷剂的储存容器,其符合适用的安全规范,需要用于排放过压储存容器的压力释放单元。 压力释放单元包括碎片式碳破裂盘,其提供机械密封以容纳制冷剂,防止污染物进入制冷系统,并破裂以减轻储存容器的过压状态。 机械式重新安置式减压阀位于碳破裂盘的下游,以控制制冷剂流入大气中。 阀和破裂盘通过包含破裂盘片收集阱的密封通道连通流体连通。 隔离器防止断裂盘破裂后通道中的碎片干扰泄压阀的操作。 在通道中的压力已经降到预定值以下之前,压力释放阀关闭,以防止制冷剂进一步逸出到大气中。

    Refrigerant evaporator over-pressure relief system including a fluid
containment vessel
    7.
    发明授权
    Refrigerant evaporator over-pressure relief system including a fluid containment vessel 失效
    制冷剂蒸发器超压释放系统包括流体容纳容器

    公开(公告)号:US5542261A

    公开(公告)日:1996-08-06

    申请号:US423202

    申请日:1995-04-17

    CPC classification number: F25B45/00 F25B1/053 F25B49/005 F25B2400/16

    Abstract: The present invention relates to a fluid containment system for minimizing the loss of refrigerant fluid from a refrigerant evaporator. The mechanical refrigeration system includes an evaporator for absorbing energy from the cooling media. The evaporator includes a pressurized shell, which to comply with applicable safety codes requires a pressure relief system for relieving an over-pressure condition. A sealed over-pressure containment vessel is connected in fluid communication with the evaporator. The containment vessel receives liquid refrigerant from the evaporator in order to reduce the pressure in the evaporator, and the flow of refrigerant fluid from the evaporator to the containment vessel is controlled by a pressure differential therebetween. After the over-pressure condition in the evaporator has been corrected the liquid refrigerant in the containment vessel can be returned to the evaporator. The containment vessel while receiving liquid refrigerant from the evaporator allows for the reduction of pressure in the evaporator and acts to help prevent the discharge of refrigerant into the atmosphere.

    Abstract translation: 本发明涉及一种用于最小化来自制冷剂蒸发器的制冷剂流体损失的流体容纳系统。 机械制冷系统包括用于从冷却介质吸收能量的蒸发器。 蒸发器包括加压壳体,其符合适用的安全规范,需要用于减轻过压状态的压力释放系统。 密封的过压容纳容器与蒸发器流体连通地连接。 容纳容器从蒸发器接收液体制冷剂以便减小蒸发器中的压力,并且通过其间的压力差来控制从蒸发器到容器的制冷剂流体的流动。 在蒸发器中的过压状态已经被校正之后,容纳容器中的液体制冷剂可以返回到蒸发器。 在从蒸发器接收液体制冷剂的情况下,容纳容器允许减小蒸发器中的压力,并且用于帮助防止制冷剂排放到大气中。

    Portable apparatus for recovery of chlorofluorocarbon (CFC) refrigerants
    8.
    发明授权
    Portable apparatus for recovery of chlorofluorocarbon (CFC) refrigerants 失效
    用于回收氯氟烃(CFC)制冷剂的便携式设备

    公开(公告)号:US5339647A

    公开(公告)日:1994-08-23

    申请号:US119730

    申请日:1993-09-10

    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。

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