3results about How to "Reduce suction superheat" patented technology

The utility model provides a kind of valve group and compressor of miniaturization reciprocating compressor, it is related to compressor field, to the problem that the temperature of existing small compressor cylinder head is too high, gas flow resistance increases and leads to efficiency reduction, by the offset structure of valve plate on the valve plate subassembly suction hole, enlarge suction valve port flow area, reduce suction resistance, reduce the pressure loss and friction heat in suction process, to reduce suction overheating, from the source to relieve cylinder head overheating problem, allow to adopt smaller size cylinder hole, meet the demand of compressor miniaturization, the valve tongue both sides of suction valve piece are provided with contraction part to form waist, exhaust hole is arranged between two sides waist, adapt to the compact space of miniaturization valve group, suction muffler outlet and cylinder cover keep apart, leave gap, cut off the heat conduction path between cylinder cover and suction muffler, form heat insulation, reduce suction overheating, reduce cylinder head temperature benign cycle, improve miniaturization reciprocating compressor efficiency.

This utility model relates to the field of refrigeration technology, and discloses an energy-saving direct expansion liquid supply refrigeration system and a tube ice machine. The system includes a compressor, a condenser, an evaporator, and a throttling valve, connected sequentially by pipes. A reflux-type gas-liquid separator is provided between the evaporator and the compressor, with its bottom return port connected to the evaporator to achieve liquid refrigerant circulation. When liquid refrigerant accumulates in the reflux-type gas-liquid separator, it flows back to the evaporator by gravity through the bottom return port, achieving near-zero superheat throttling. This utility model overcomes the limitations of superheat, allowing the evaporator to receive a significantly increased amount of refrigerant, thus improving heat exchange efficiency. Simultaneously, through liquid refrigerant circulation and intelligent temperature control, it solves problems of high energy consumption, reflux blockage, and low-temperature freezing. Furthermore, this utility model also discloses a tube ice machine using this energy-saving direct expansion liquid supply refrigeration system.

The cylinder head assembly comprises a cylinder cover and a cylinder sleeve, the cylinder sleeve is provided with a through cylinder hole, the cylinder cover comprises a cylinder cover body, the cylinder cover body is arranged at one end of the cylinder sleeve, the cylinder cover body is provided with a sleeve extending in the direction of the cylinder hole, and the sleeve is arranged in the cylinder hole. The sleeve is arranged on the outer side of the cylinder sleeve in a sleeving mode, the cylinder sleeve is arranged in the sleeve, and the cylinder cover body and the sleeve are integrally made of plastic. According to the technical scheme, the cylinder cover comprises the cylinder cover body and the sleeve, the cylinder cover body and the sleeve are integrally made of plastics, the sleeve is arranged on the outer side of the cylinder sleeve in a sleeving mode, the plastic materials of the cylinder cover body and the sleeve enable the cylinder cover body and the sleeve to have good heat insulation performance, and heat of high-temperature gas in an exhaust channel is prevented from being transmitted into the compressor shell; inspiration overheating of the compressor is effectively reduced, and the refrigerating capacity and performance coefficient of the compressor are improved.