3results about How to "Reduce vortex phenomenon" patented technology

The invention aims to provide a preparation method of a rubber hot water pipe. The preparation method comprises the following specific steps: 1) preparing a rubber composition containing rubber; 2) manufacturing a resin mixture composed of resin; (3) a resin mixture is mixed into the rubber composition, a rubber composition mixture is manufactured, and the weight ratio of the rubber composition to the resin mixture is 100: (10-30); and 4) melting the rubber composition mixture under the temperature condition of 210-250 DEG C, and molding to manufacture a pipeline molded product. According to the method, the pressure resistance, the heat resistance, the antibacterial property, the wear resistance, the impact resistance and other characteristics of the hot water pipe can be enhanced, the resistance to external impact is improved, and meanwhile the antibacterial property and the deodorization property of the hot water pipe are improved. Besides, the hot water pipe is made of elastic rubber materials, construction is easy, the vortex phenomenon generated in a bent or bent pipeline along with flowing of fluid can be reduced, and it is guaranteed that the fluid can be smoothly supplied.

The invention discloses an ultrasonic metering device, which belongs to the technical field of metering meters and solves the problem that the existing ultrasonic metering device cannot meet the accuracy requirements of small flow measurement of household gas meters. The ultrasonic metering device of the invention comprises a shell and a transducer arranged on the shell, wherein a metering channel for fluid to pass through is arranged in the shell, and the shell forms an inlet section and a measuring section along the flow direction of the fluid, and the transducer comprises a transmitting vibrator and a receiving vibrator, wherein the transmitting vibrator and the receiving vibrator are installed on the same side of the measuring section so that the propagation path of the ultrasonic wave is V-shaped, the flow area of ​​the inlet section is S1, and the flow area of ​​the measuring section is S2, wherein S2<S1. The surface velocity of the fluid when flowing through the measuring section is increased, the flight time difference during ultrasonic measurement is increased, and the measurement accuracy is improved, especially the measurement accuracy requirements of small flow conditions are met.

The application relates to the technical field of household appliances, and particularly provides a clothes processing device, which aims to solve the problem of clothes drying effect influenced by uneven airflow distribution in the clothes processing device. For the purpose, the clothes processing device comprises a cylinder body with a clothes containing cavity in the inside, an air inlet is arranged on the cylinder body, a shell is internally formed with an air duct, the air duct is communicated with the air inlet, a wind deflector is arranged in the air duct, the wind deflector divides the air duct into multiple sub-passages, a fan assembly comprises a volute connected with the shell and a fan arranged on the volute, the inside of the volute is communicated with the air duct, and one end of the wind deflector extends to the side where the volute is located. The application can reduce the generation of vortex flow in the air duct, reduce the noise caused by the vortex flow, improve the uniformity of airflow distribution in the air duct, improve the uniformity of airflow at each position in the cylinder body, and improve the clothes drying effect.