2results about How to "Solve uncontrollable problems" patented technology

This utility model relates to the field of fluid circulation system technology, specifically disclosing an electronic oil pump with an internal circulation flow control structure. The electronic oil pump includes a pump body with a cavity. The cavity is divided into an outer circulation cavity and an inner circulation cavity by a partition. The outer circulation cavity supplies oil to external oil-using equipment. The inner circulation cavity houses a motor and a controller, and the partition has an oil hole. The electronic oil pump also includes a one-way control unit located in the inner circulation cavity and connected to the partition. The one-way control unit covers the oil hole, enabling automatic adjustment of the oil flow channel opening based on oil pressure. The oil flow channel is the oil flow path formed by the oil hole and the one-way control unit. This solves the problem in the prior art where electronic oil pumps struggle to dynamically adjust the internal circulation flow according to actual operating conditions.

The utility model discloses a device for preparing carbon nano tube powder. The device comprises a carbon source and catalyst introduction unit, a carbon tube growth unit and a temperature regulation unit, the carbon source and catalyst introduction unit comprises a gas flow control module, a first raw material storage container, a first pressure controller, a second raw material storage container and a second pressure controller, and the two raw material storage containers are respectively provided with an independent heating module; the carbon tube growth unit comprises a gas mixing container, a plasma generation module, a vacuum module, a heating furnace body and a reaction pipeline; and the temperature adjusting unit independently controls each heating module. The device disclosed by the utility model can meet the use of raw materials with different physical states, solves the problem that the particle size of a catalyst is not uniform and is difficult to control, can realize accurate control on the diameter and the wall number of the carbon nano tube, and can prepare high-purity and high-quality single-walled carbon nano tube powder; the method has important significance on scientific research and large-scale production of high-purity and high-quality single-walled carbon nanotube powder.