Abstract: An ejector refrigeration system, comprising: a compressor, a heat-extraction heat exchanger, an ejector, a separator, a first throttling element, and a heat-absorption heat exchanger that are connected through pipelines, the ejector having a main flow inlet connected to the heat-extraction heat exchanger, and further having a secondary flow inlet and an ejector outlet; the separator having a separator inlet connected to the ejector outlet, a separator liquid outlet connected to the first throttling element, and a separator gas outlet connected to a gas inlet of the compressor, wherein turn-on and turn-off of a first flow path connecting the heat-absorption heat exchanger and the secondary flow inlet of the ejector and a second flow path connecting the heat-absorption heat exchanger and the gas inlet of the compressor are controllable.

Abstract: An ejector refrigeration system, comprising: a compressor, a heat-extraction heat exchanger, an ejector, a separator, a first throttling element, and a heat-absorption heat exchanger that are connected through pipelines, the ejector having a main flow inlet connected to the heat-extraction heat exchanger, and further having a secondary flow inlet and an ejector outlet; the separator having a separator inlet connected to the ejector outlet, a separator liquid outlet connected to the first throttling element, and a separator gas outlet connected to a gas inlet of the compressor, wherein turn-on and turn-off of a first flow path connecting the heat-absorption heat exchanger and the secondary flow inlet of the ejector and a second flow path connecting the heat-absorption heat exchanger and the gas inlet of the compressor are controllable.

Abstract: The present invention relates to a gas-liquid separator, including a body enclosing a cavity; a gas outlet attached to the top of the body and communicated with the cavity; a liquid outlet attached to the bottom of the body and communicated with the cavity; and an input tube constructed to include a curve shape extending outside the body and communicated into the cavity from the external of the body. The gas-liquid separator of the present invention has got the advantages of a simple structure, easy manufacturing, convenient mounting, and the like, and can separate a gas-liquid two-phase mixture efficiently, thus providing a purer gas flow and a purer liquid flow for downstream processing apparatuses and improving the overall efficiency of the system.

Abstract: A refrigeration display cabinet, including: a refrigeration loop having an exhaust port of a compressor, a condenser, throttling elements, a plurality of evaporators connected in parallel, and an induction port of the compressor that are connected sequentially through a flow path; a display space; and a display cabinet base in which the plurality of evaporators are superposed, wherein partition boards are disposed between the plurality of evaporators respectively, and gutters are disposed at two sides of each of the partition boards. The gutters disposed at two sides effectively avoid problems such as tilted deployment of the partition board due to installation precision or structural design, such that water from melted frost can be guided to be drained in any case. Moreover, the gutters disposed at two sides also accelerate the drainage of the water from melted frost.

Abstract: The invention relates to fresh air ventilation devices adapted for use with air conditioners (ACs) and/or heaters. In operation, the device supplements the recirculating air of the AC/heater with fresh air drawn from outside of the building.

Abstract: The invention relates to fresh air ventilation devices adapted for use with air conditioners (ACs) and/or heaters. In operation, the device supplements the recirculating air of the AC/heater with fresh air drawn from outside of the building.

Abstract: The present invention relates to cooling/heating units and their installation to wall or window openings, and more particularly pertains to a new and improved casing to secure the air conditioner while protecting against heat leakages through the casing itself. The wall casing is a cabinet structure containing a top side, a bottom side opposing the top side, and two opposing lateral sides being approximately orthogonal to the top and bottom sides. The top, bottom, and lateral sides forming substantially a box with the front and back opened. Each of the sides is double-walled and filled with an insulating material.