6results about How to "Flow state is stable" patented technology

This utility model discloses a throttling structure, a refrigeration system, and refrigeration equipment, belonging to the field of household appliance technology. The throttling structure includes a first throttling tube, an expansion tube, a second throttling tube, and a packing element. The first throttling tube connects to the condenser; the inlet of the expansion tube connects to the outlet of the first throttling tube, and the inner diameter of the expansion tube is larger than that of the first throttling tube; the inlet of the second throttling tube connects to the outlet of the expansion tube, and the outlet of the second throttling tube connects to the evaporator, and the inner diameter of the second throttling tube is smaller than that of the expansion tube; the packing element is made of a porous material and is disposed inside the expansion tube, configured to allow refrigerant flowing from the first throttling tube to pass through and flow to the second throttling tube. This utility model reconstructs the gas-liquid two-phase flow through the packing element, promoting uniform mixing of the gas and liquid phases, transforming the violent and concentrated flash evaporation process into a smooth and controllable phase change process within the packing element, thereby suppressing noise generation.

The utility model relates to the technical field of tundish flow control, in particular to a magnesium flow stabilizer for a tundish, which comprises a hollow magnesium body, the top of the magnesium body is provided with an opening, the inner bottom of the magnesium body is provided with a corundum drainage body coaxial with the magnesium body, and the corundum drainage body is provided with a circular top surface; wherein the inner bottom surface of the magnesian body is an arc-shaped surface which is in smooth transition with the inner wall surface of the magnesian body and the outer wall surface of the corundum drainage body; by means of the smooth arc transition design of the inner bottom face of the magnesium body and the outer wall face of the corundum drainage body, turbulence and local scouring during flowing of molten steel are effectively reduced, the high hardness characteristic of the corundum drainage body is combined, erosion to the magnesium body is remarkably reduced, and the service life is prolonged. The inner wall face of the magnesium body is designed to be a conical face, the flow speed of molten steel is guided to be evenly distributed, and local scouring aggravation caused by sudden change of the flow speed is avoided.

The utility model relates to the technical field of fiber processing, and discloses extrusion equipment for processing high-performance fiber products, which comprises a screw extruder, the screw extruder is provided with a feed port and a discharge port, a screw which is coaxially arranged in a centering manner and is driven by a motor is mounted in the screw extruder, and a spiral auger is mounted on the screw; the spiral auger comprises a feeding section close to the feeding port and a staggered-tooth shearing section close to the discharging port, the feeding section and the staggered-tooth shearing section are connected with each other, and the screw pitch of the feeding section is larger than that of the staggered-tooth shearing section. The screw pitch of the feeding section of the spiral auger is large, fiber materials can be rapidly conveyed, feeding smoothness is guaranteed, the screw pitch of the staggered tooth shearing section is small, and therefore melt pressure is balanced, pressure fluctuation is reduced, fiber melt extrusion is more stable, fibers are more evenly distributed in the melt, the mixing effect of the fibers is effectively improved, and the mixing efficiency of the fibers is improved. And the quality stability of the product is improved.

The utility model discloses a kind of turbulence block and milk bubble whipping container, it is related to the technical field of beverage making equipment, the turbulence block includes turbulence part and connecting part, one side of the turbulence part is connected with the connecting part, and the other side is equipped with shunt end face;Wherein, the turbulence part is equipped with turbulence face for meeting water flow impact, the turbulence face is equipped with concave arc surface, and the concave arc surface is located between the connecting part and shunt end face.The utility model is simple in structure, and mixing effect is good.

The invention discloses composite multi-layer stable plate extrusion equipment and an extrusion method thereof, and relates to the field of composite plate production and processing.The composite multi-layer stable plate extrusion equipment comprises a first extruder and a second extruder, the first extruder and the second extruder extrude two melts used for producing a composite multi-layer stable plate respectively, and a plate discharging machine is used for flattening the melts and forming a preliminary plate blank; one end of the extrusion die is connected with the first extruder, the other end of the extrusion die is connected with the plate discharging machine, one side of the extrusion die is connected with the second extruder through a movable connector in a bent state, and the extrusion die is used for compounding the two melts according to a set proportion and then guiding the two melts to the plate discharging machine. The extrusion die formed by combining multiple layers of structures is designed, a five-layer composite board structure which sequentially comprises the middle layer, the two interlayers and the two outermost layers from inside to outside is formed, and the nail-holding power of the board is improved; the two interlayers and the two outermost layers are uniformly stressed in the flowing process, so that the material fusion quality is effectively improved.

This application provides a high-efficiency sealing pipe connection structure, comprising a connection mechanism and a pipe assembly. The inner wall of the connection mechanism has a stepped flow guiding cavity, which includes a contraction section and an expansion section. The inner wall of the contraction section has a turbulence-inducing protrusion. It also includes a convex-shaped turbulent elastic sealing mechanism, whose inner wide sealing end face conforms to the outer wall of the pipe and is machined with spiral microgrooves. The inner wall of the connection mechanism has a flow guiding groove, one end of which connects to the expansion section, and the other end extends to the starting end of the spiral microgrooves. This relates to the field of fluid transport technology. The fluid is pressurized by the contraction section, and the turbulence-inducing protrusions create a rotating turbulent flow. Part of the turbulence is guided to the sealing mechanism through the flow guiding groove, using fluid pressure to enhance the sealing fit. Simultaneously, the fluid generates circumferential scouring along the spiral microgrooves, achieving self-cleaning of the sealing surface. This invention has a compact structure, reliable sealing, and self-cleaning capability, and is suitable for rapid pipe connections in high-pressure, impurity-containing fluid environments.