3results about How to "Reduce static pressure" patented technology

The utility model discloses a kind of superhigh voltage multicore photoelectric composite six types of data cable, including electric conductor, photoelectric subarea pipe sleeve, optical fiber, wrap layer, insulating layer, heat insulation layer, protective layer, outer armor, the electric conductor is installed in photoelectric subarea pipe sleeve inside, the optical fiber is installed in photoelectric subarea pipe sleeve inside, the wrap layer is wrapped in photoelectric subarea pipe sleeve side end, the insulating layer is coated in wrap layer side end, the heat insulation layer is coated in insulating layer side end, the protective layer is coated in heat insulation layer side end, the outer armor is coated in protective layer side end. The utility model solves the superhigh voltage multicore photoelectric composite six types of data cable when using, copper core of cable carries current and is easy to produce local hot spot, produces local overheating. When cable laying or running is subjected to vibration, bending, optical fiber is prone to stress concentration due to local increase and even breakage problem of attenuation.

This invention discloses a radial flame stabilizer with airflow-assisted jet, comprising an outer wall and an inner wall. Both the outer and inner wall surfaces have V-shaped cross-sections, including a pointed tip and two tail ends. The two corresponding tail ends of the outer and inner wall surfaces are connected by a flow-rectifying wall. An air-guiding groove is provided at the pointed tip of the outer wall, and several injection holes are provided near the tail ends. The air-guiding groove, the interlayer between the outer and inner wall surfaces, and the injection holes form an airflow channel. A fuel injection extension pipe is provided near the tail ends of the inner wall, extending from the inner wall towards the injection holes. The fuel injection extension pipe guides the fuel injection from the injection holes. By introducing a portion of the incoming flow through the air-guiding groove at the stabilizer head, and utilizing the method of coaxial injection of the introduced incoming gas and fuel, the problem of shallow fuel jet depth and difficult evaporation under high-speed, large-flow conditions is improved, resulting in better fuel evaporation and mixing performance compared to conventional radial flame stabilizers.

This utility model discloses a heat exchanger and an air conditioner having the same. The heat exchanger includes a heat exchange section and an inlet section. The heat exchange section has multiple refrigerant channels, and the inlet section includes a main pipe and multiple branch pipes. The branch pipes are connected to the multiple refrigerant channels. The two ends of the main pipe are an upstream end and a downstream end, respectively. The branch pipes are spaced apart along the length of the main pipe and are all connected to the main pipe. The main pipe has a reduced diameter section, and the flow area of ​​the main pipe decreases at the reduced diameter section from the upstream end to the downstream end. At least one branch pipe is arranged upstream and downstream of the reduced diameter section. In the above technical solution, the inlet section has a simple structure, does not require a distributor, occupies little space, is easy to arrange, and can save production and assembly costs. Furthermore, by setting a reduced diameter section in the main pipe of the inlet section, the flow velocity of the refrigerant flowing through the reduced diameter section increases, the dynamic pressure increases, and the static pressure decreases, resulting in a more balanced flow rate in the branch pipes along the main pipe, which is beneficial to improving the heat exchange effect of the heat exchanger.