Injector system for refrigerant systems

    公开(公告)号:US11906220B2

    公开(公告)日:2024-02-20

    申请号:US17391565

    申请日:2021-08-02

    IPC分类号: F25B45/00 F25B47/00

    摘要: An injector for servicing a refrigerant system employs a reconfigurable container that is selectively configurable in a plurality of different container configurations. In each container configuration, an outlet of the reconfigurable container can be fluidly connected to the refrigerant system such that the injector can discharge treatment fluid through the outlet into the refrigerant system. The plurality of different container configurations can include a plurality of different fillable container configurations or one or more fillable container configurations and a pass-through configuration. In a fillable container configuration, the reconfigurable container defines a fillable space for receiving treatment fluid. In a pass-through container configuration, the reconfigurable container passes fluid from a disposable container through the outlet. In use, the desired container configuration is selected and fluid is injected from the injector into a refrigerant system.

    EVAPORATOR HEAT EXCHANGER FOR PREVENTING ICE BUILD-UP

    公开(公告)号:US20230120712A1

    公开(公告)日:2023-04-20

    申请号:US17965241

    申请日:2022-10-13

    发明人: Nicolas Fonte

    摘要: A system includes a compressor for increasing the pressure of a refrigerant; a condenser heat exchanger arranged downstream of the compressor for receiving a high pressure refrigerant output from the compressor and for transferring heat from the high pressure refrigerant to a source of water; an expansion device for reducing the pressure of a refrigerant; and an evaporator heat exchanger for extracting heat from ambient air. The evaporator heat exchanger includes a first tube bank having a first inlet arranged to receive a high pressure refrigerant output from the condenser and a first outlet fluidly coupled to the expansion device; and a second tube bank having a second inlet arranged to receive a low pressure refrigerant output from the expansion device, and a second outlet fluidly coupled to an inlet of the compressor.

    PREVENTING EVAPORATOR COIL FREEZE DURING RE-HEAT DEHUMIDIFICATION

    公开(公告)号:US20230088937A1

    公开(公告)日:2023-03-23

    申请号:US17994523

    申请日:2022-11-28

    摘要: In an embodiment, a method of preventing evaporator coil freeze in a heating, ventilation and air conditioning (HVAC) system includes determining a reference saturated suction temperate (SST) via a sensor disposed in relation to an evaporator coil in the HVAC system, where the HVAC system is operating in reheat dehumidification mode. The method also includes determining whether the reference SST is below a minimum SST threshold. The method also includes, responsive to a determination that the reference SST is below the minimum SST threshold, determining a decreased compressor speed. The method also includes modulating a variable-speed compressor in the HVAC system in correspondence to the decreased compressor speed.

    Preventing evaporator coil freeze during re-heat dehumidification

    公开(公告)号:US11561015B2

    公开(公告)日:2023-01-24

    申请号:US17181174

    申请日:2021-02-22

    摘要: In an embodiment, a method of preventing evaporator coil freeze in a heating, ventilation and air conditioning (HVAC) system includes determining a reference saturated suction temperate (SST) via a sensor disposed in relation to an evaporator coil in the HVAC system, where the HVAC; system is operating in reheat dehumidification mode. The method also includes determining whether the reference SST is below a minimum SST threshold. The method also includes, responsive to a determination that the reference SST is below the minimum SST threshold, determining a decreased compressor speed. The method also includes modulating a variable-speed compressor in the HVAC system in correspondence to the decreased compressor speed.

    INJECTOR SYSTEM FOR REFRIGERANT SYSTEMS

    公开(公告)号:US20220260291A1

    公开(公告)日:2022-08-18

    申请号:US17391565

    申请日:2021-08-02

    IPC分类号: F25B45/00 F25B47/00

    摘要: An injector for servicing a refrigerant system employs a reconfigurable container that is selectively configurable in a plurality of different container configurations. In each container configuration, an outlet of the reconfigurable container can be fluidly connected to the refrigerant system such that the injector can discharge treatment fluid through the outlet into the refrigerant system. The plurality of different container configurations can include a plurality of different fillable container configurations or one or more fillable container configurations and a pass-through configuration. In a fillable container configuration, the reconfigurable container defines a fillable space for receiving treatment fluid. In a pass-through container configuration, the reconfigurable container passes fluid from a disposable container through the outlet. In use, the desired container configuration is selected and fluid is injected from the injector into a refrigerant system.

    METHOD OF DEFROSTING A MULTIPLE HEAT ABSORPTION HEAT EXCHANGER REFRIGERATION SYSTEM

    公开(公告)号:US20210364205A1

    公开(公告)日:2021-11-25

    申请号:US17045944

    申请日:2019-02-26

    IPC分类号: F25B47/00 F25B5/02 F25B49/02

    摘要: A method of operating a refrigeration system. The method includes operating a multi-temperature refrigeration system that has a plurality of heat absorption heat exchangers in a single temperature mode. A number of the plurality of heat absorption heat exchangers are determined that require defrosting a single heat absorption heat exchanger is directed into a different operational state when the number of heat absorption heat exchangers that require defrosting is equal to one. E of the plurality of heat absorption heat exchangers is directed into a defrost mode when the number of heat absorption heat exchangers that requires defrosting is more than one.