4results about How to "Prevent ice blockage" patented technology

The application belongs to the technical field of ice particle jet, and particularly relates to a device and a jet method for preparing straight-rotation mixed ice particle jet by using high-pressure superheated liquid flash evaporation, which comprises a high-pressure superheated liquid supply system and a water supply system, the high-pressure superheated liquid supply system and the water supply system are respectively connected with a straight-rotation mixed ice particle generation jet, the straight-rotation mixed ice particle generation jet system is connected with a recovery system, the recovery system is connected with the high-pressure superheated liquid supply system through a pipeline, the straight-rotation mixed ice particle generation jet system comprises a double-layer sleeve, the inner layer of the double-layer sleeve is connected with the water supply system, the outer layer is connected with the high-pressure superheated liquid supply system, an impeller is arranged at the outlet of the double-layer sleeve, a convergent atomizing nozzle is arranged at the outlet of the impeller, a protective shell is arranged outside the convergent atomizing nozzle, the convergent atomizing nozzle and the impeller center line are coincided with the inner layer, and the superheated liquid flash evaporation in the application has high refrigeration power and high speed, and can complete ice particle preparation in a short time.

This utility model discloses an integrated CO2 heat pump system for fresh air supply, comprising a housing with a fresh air inlet and a fresh air outlet; a primary and secondary efficiency filter, a first heat exchanger, and a second heat exchanger are sequentially installed inside the housing along the fresh air flow direction; the heat pump system using carbon dioxide as refrigerant includes a compressor, a four-way valve, an expansion valve, and a closed refrigerant circuit, the circuit being connected through the four-way valve port so that the compressor exhaust passes sequentially through the first heat exchanger, the expansion valve, and the second heat exchanger before returning to the compressor; a variable frequency fan is installed between the second heat exchanger and the fresh air outlet; temperature and humidity sensors are respectively installed on the outdoor and indoor sides; the controller connects the sensors, the four-way valve, the compressor, and the fan, and has the advantages of dynamically switching between cooling / heating / dehumidification modes and adjusting the fan speed according to environmental parameters.

The application relates to a marine BOG gas incineration device and a control method thereof. The incineration device comprises a natural gas pipeline system, an auxiliary fuel gas pipeline system, an air supply pipeline system and a GCU incineration device; the natural gas pipeline system comprises a natural gas main pipeline and an ignition branch pipeline, a first combustion branch pipeline and a second combustion branch pipeline, and a diffusion branch pipeline is arranged on the natural gas main pipeline; the auxiliary fuel gas pipeline system comprises an auxiliary fuel gas pipeline, and the auxiliary fuel gas pipeline is connected with the ignition branch pipeline, the first combustion branch pipeline and the second combustion branch pipeline in series; the air supply pipeline system comprises an air supply fan and an air supply pipeline; the GCU incineration device comprises a wind distribution chamber, a treatment chamber, a combustion chamber and a burner, the treatment chamber is communicated with the wind distribution chamber, the combustion chamber is communicated with the treatment chamber, the burner is arranged in the combustion chamber, and the air supply pipeline is communicated with the wind distribution chamber. The application solves the problem that the prior art cannot incinerate three kinds of BOG gas, i.e. low-temperature and low-pressure gas on an LNG ship, high-pressure and normal-temperature gas and low-concentration mixed gas.

This utility model discloses an electric defrosting air cooler with de-icing function, relating to the field of electric defrosting air coolers. The utility model includes a main body of the air cooler, a fan mounting ring, a fin assembly, and a heating element disposed within the main body. A refrigerant tube, made of stainless steel, is inserted into the fin assembly with a hole spacing of 38.1 mm and a row spacing of 33 mm. The liquid inlet end of the refrigerant tube is connected to a capillary distributor, and the liquid outlet end is connected to a return gas pipe. This utility model optimizes the uniformity of refrigerant distribution through a multi-path arrangement of four inlets / four outlets and three inlets / three outlets. With four inlets / four outlets, the total pipe length of 58.8 m covers a larger heat dissipation area, increasing the cooling capacity to 7 kW, suitable for high-load scenarios. With three inlets / three outlets, the pipe length is shortened to 44.1 m, reducing flow resistance and adapting the cooling capacity to small and medium-sized needs. The precise diversion by the capillary distributor solves the problem of uneven refrigerant distribution caused by traditional single-path liquid inlet, avoiding localized frost formation or incomplete evaporation, and improving overall heat exchange efficiency.