4results about How to "Improve flow distribution" patented technology

The utility model discloses a liquid cooling plate which comprises an upper cover plate and a lower cover plate, and a main flow channel is formed between the upper cover plate and the lower cover plate; the water inlet nozzle is communicated with the water inlet of the main flow channel and is used for allowing a refrigerant to flow in; the water outlet nozzle is communicated with a water outlet, corresponding to the water inlet, of the main runner and is used for allowing a refrigerant to flow out; the heat exchange columns are arranged in the main flow channel, and the densities of the heat exchange columns in different areas in the main flow channel are different. According to the liquid cooling plate, the plurality of heat exchange columns are arranged, so that the structural strength of the liquid cooling plate can be enhanced, the contact area between a refrigerant and the flow channel wall can be increased, and the heat exchange efficiency is improved. Besides, the heat exchange columns with different densities are arranged in different areas, so that the flow distribution of the refrigerant in the flow channel can be optimized, the refrigerant is uniformly distributed, and the uniformity of the heat dissipation performance of the liquid cooling plate is improved.

This utility model relates to the field of electric wire and cable production technology, and in particular to an extrusion coating device for electric wire and cable. This device allows the electric wire and cable to be coated with different materials sequentially during its movement, thereby forming a multi-layer composite structure in a single processing cycle, effectively improving production efficiency and the bonding strength of the coating layers. The extrusion mold is equipped with a thickness control component, including horizontally movable left and right adjustable die lips, which can precisely adjust the size of the discharge hole, ensuring the uniformity and adjustability of the coating thickness to meet the processing needs of electric wire and cable of different specifications. Furthermore, the design of the conical injection channel and stepped transition surface optimizes the flow distribution of the molten material, reducing turbulence and bubble generation, and improving the coating quality. The combined use of the guide sleeve and positioning component accurately guides the electric wire and cable into the extrusion cavity, preventing deviation and ensuring the symmetry and consistency of the coating layers. The overall structure is compact, easy to operate, suitable for continuous production, and has high practicality and economy.

The invention provides a water cooling device for a thermal power plant. The water cooling device comprises a cooling tank, a supporting frame, a steam pipeline and a discharging pipeline. A cooling pipe group is arranged in the cooling tank; the upper end of the steam pipeline extends to the inner side of the cooling tank; a spraying assembly is arranged at the top in the tank, and a bubble breaking plate is arranged at the lower part. The cooling pipe set comprises a gas guide cylinder and heat exchange pieces arranged on the outer side of the gas guide cylinder in an annular array mode, and one side of each heat exchange piece extends into the steam pipeline. And the spraying assembly comprises a conveying main pipe with a plurality of groups of symmetrical shunting branch pipes and spraying nozzles. Through the synergistic effect of the heat exchange pieces extending into the steam pipeline, the gas guide curved surface at the top of the gas guide cylinder, the uniform spraying system and the bubble breaking plate, the heat exchange area is remarkably increased, steam distribution is optimized, bubbles are effectively broken, and therefore the technical problems that a traditional device is low in cooling efficiency, heat transfer is affected by bubble gathering, and cooling is uneven are solved; and efficient, stable and uniform steam cooling is realized.

This invention belongs to the field of blast furnace blasting technology, specifically relating to a uniform blasting device and method with symmetrically arranged dual hot blast mains in a blast furnace. In this invention, before the hot blast enters the blasting system from the hot blast stove, it is divided into two streams, which enter the hot blast casing from the first and second hot blast mains, respectively. The two streams enter tangentially along the casing and then flow in the same direction along the casing wall, forming a clockwise or counterclockwise hot blast airflow within the casing. The hot blast then flows into the hot blast branch pipes evenly distributed around the circumference of the casing, and is finally delivered into the blast furnace through the tuyeres, completing the blasting process. This device has a simple structure and low cost, effectively improving the airflow uniformity caused by the non-centrally symmetrical structure of traditional hot blast casings. Furthermore, this device demonstrates good adaptability to dynamic changes in the total blast volume.