Abstract:
A refrigerant blend measurement system (RBMS) (77) is configured to determine a composition of a refrigerant blend within a refrigerant circuit (76) of a vapor compression system. The RBMS includes: a sample vessel (70) configured to receive a portion of the refrigerant blend, wherein the sample vessel comprises a first sensor configured to measure a temperature of a liquid portion (80B) of the refrigerant blend and a second sensor configured to measure a pressure (80A) of the refrigerant blend. The vapor compression system includes a control unit (84) configured to: receive a measured temperature value from the first sensor; receive a measured pressure value from the second sensor; determine a composition of the refrigerant blend based on the measured temperature value and the measured pressure value; and determine that the composition is beyond a predefined threshold stored in the memory, and in response, modify operation of the vapor compression system.
Abstract:
Embodiments of the present disclosure are directed toward a compressor including an impeller configured to compress a working fluid, a diffuser positioned downstream of the impeller with respect to a flow path of the working fluid, where the diffuser is configured to direct the working fluid through a radial passage, and where the diffuser comprises a vaned diffuser portion disposed within the radial passage, and a collector positioned downstream of the diffuser with respect to the flow path of the working fluid, where a chamber of the collector is axially offset from the radial passage of the diffuser.
Abstract:
The present disclosure provides a gas discharge apparatus, a refrigerating and air-conditioning unit, and a method of discharging a non-condensable gas. The gas discharge apparatus comprises a gas discharge compressor and a heat exchanger, wherein a gas suction port of the gas discharge compressor is connected to a condenser of the refrigerating and air-conditioning unit to introduce a mixed gas comprising a gaseous refrigerant and a non-condensable gas into the gas discharge compressor to be compressed; a gas inlet of the heat exchanger is connected to a gas discharge port of the gas discharge compressor; a liquid outlet of the heat exchanger is connected to an evaporator or the condenser of the refrigerating and air-conditioning unit; the heat exchanger further has a cold source inlet and a cold source outlet available for the cold source to flow through, such that the compressed mixed gas enters the heat exchanger to exchange heat with the cold source and the gaseous refrigerant is condensed into a liquid refrigerant which is discharged into the evaporator or condenser, and a gas outlet is configured to discharge the separated non-condensable gas from the heat exchanger. The gas discharge apparatus according to the present disclosure may effectively separate and discharge the non-condensable gas in the refrigerating and air-conditioning unit, thereby guaranteeing its safe and efficient operation.
Abstract:
The present disclosure relates to an oil flow switch, comprising a float device connected to a circulating oil passage and a floating liquid level switch element provided in the float device, wherein the float device comprises an oil inlet, an oil outlet, and a float chamber provided between the oil inlet and the oil outlet, the floating liquid level switch element is provided in the float chamber, and the float device is provided with a channel in communication with the float chamber. The oil flow switch according to the present disclosure may avoid a false alarm of the oil level switch and meanwhile mitigate disturbance to the float caused by liquid level fluctuation to reduce friction between the float and the sleeve rod. Further, a lubrication system with the above oil.
Abstract:
Certain embodiments include a system having a first grip (100) configured to couple to a first tubular (38), a second grip (102) configured to couple to a second tubular (38), where the first and second tubulars (38) are connected by a threaded connection (52), and a gear assembly (104) coupling the first and second grips (100, 102), wherein the gear assembly (104) has a speed ratio greater than 1.
Abstract:
Present embodiments are directed a mineral extraction system comprising a locking clamp configured to be secured to a first tubular member, wherein the locking clamp comprises an outer radial surface having a first geometry and a rotary table adapter. The rotary table adapter comprises a base and an extension extending from the base, wherein the extension defines a recess, the recess comprises an inner radial surface having a second geometry, wherein the first geometry and the second geometry correspond with one another, and the rotary table adapter is configured to be disposed within a rotary table of a drilling rig.
Abstract:
A system (1) includes a spray tool (26) including a trigger (64) and a sensor (23). The system includes a fluid regulation system (12) including a container (18) configured to store a coating material and a pump (34) configured to control a flow of the coating material. The system includes a pump control system including a controller (14) configured to change an operating parameter of the pump (18) distributing the coating material in response to an input from the sensor (23). The pump control system is coupled to the fluid regulation system (12).
Abstract:
Embodiments of the present disclosure relate to a heating, ventilation, air conditioning, and refrigeration (HVAC&R) system (10) that includes a refrigerant loop, a compressor (32) disposed along the refrigerant loop and configured to circulate refrigerant through the refrigerant loop, an evaporator (38) disposed along the refrigerant loop and configured to place the refrigerant in a heat exchange relationship with a cooling fluid (112), and a tube bundle (82) of the evaporator configured to flow the cooling fluid through the evaporator, where the tube bundle includes a peripheral portion that is non-linear and at least partially conforms to a shape of a shell (76) of the evaporator (38).
Abstract:
An economizer (102) for a heating, ventilation, air conditioning, and refrigeration (HVAC&R) system (100) includes a housing (124) defining a first chamber (130) and a second chamber (132), an inlet conduit (166) coupled to the housing (124) and configured to direct a flow of working fluid into the first chamber (130), and a perforated sheet (164) disposed within the first chamber (130), where the perforated sheet (164) is curved and is configured to direct the flow of working fluid received by the first chamber (130) in a circular direction.
Abstract:
A chiller system (100) includes a mechanical-cooling circuit (104) configured to circulate a refrigerant through an evaporator (108) of the mechanical-cooling circuit (104), where the evaporator (108) is configured to cool a conditioning fluid with the refrigerant. The chiller system (100) also includes a free-cooling circuit (106) configured to circulate the refrigerant through a heat exchanger (118) of the free-cooling circuit (106), where the heat exchanger (118) is configured to cool the conditioning fluid with the refrigerant. The chiller system (100) also includes a distribution header (130) having a first inlet (129) configured to receive the refrigerant from the mechanical-cooling circuit (104), a second inlet (131) configured to receive the refrigerant from the free-cooling circuit (106), and an internal volume fluidly coupled to the first inlet (129) and the second inlet (131). A fan coil unit (102) of the chiller system (100) is configured to receive the refrigerant from the internal volume of the distribution header (130).