2results about How to "Reduce air pulsation" patented technology

The utility model discloses a vacuum buffer tank for a Roots vacuum unit, which relates to the technical field of vacuum buffer tanks and comprises a tank body, a cyclone separator and a buffer gas tank. Flow guide fan blades with holes are arranged in the tank body, a smooth inclined baffle is installed in the tank body, a floating ball liquid level meter and an electric ball valve are installed at the bottom of the tank body, an air inlet is formed in the left side of the cyclone separator, an air outlet is formed in the right side of the cyclone separator, and an ash hopper is installed below the cyclone separator. Under the combined action of a motor, a bevel gear set, a belt transmission device and a straight rod, airflow can be driven by a spiral fan blade to be guided to a gaseous buffer layer from an air inlet, then is driven by rotation of a fan to be guided into a buffer gas tank from the gaseous buffer layer, and is exhausted from an air outlet; the gas-liquid-solid three-phase separation improves the efficiency of a vacuum system manufactured by the Roots vacuum unit, and prevents solid particles or liquid from damaging equipment.

The utility model relates to refrigerating machine technical field discloses a kind of gas wave refrigerating machines, including shell, the bottom surface of the shell is fixedly connected with machine base, the end side of the shell is communicated with air inlet pipe, the end surface of the air inlet pipe is fixedly communicated with flange one, the end side of the flange one is fitted with flange two, and the filter assembly is installed between the flange one and flange two, the top surface of the shell is fixedly connected with motor, the output end of the motor is fixedly connected with rotating shaft, the outer ring of the rotating shaft is fixedly sleeved with runner distributor, the outer ring of the runner distributor is communicated with nozzle, the outer ring of the shell is communicated with multiple oscillation pipes, and the end of multiple oscillation pipes is respectively connected with cold air outlet pipe, and the bottom surface of the shell is communicated with hot gas outlet pipe.The utility model uses the grouping alternation mode of the number of nozzle less than the number of oscillation pipe, and the running process is smooth, airflow pulsation is small, and the overall vibration and noise of equipment are lower, and the operation reliability is stronger.