7results 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 discloses a magnetic material forming device, and relates to the technical field of magnetic material forming processing, a driving assembly is used for starting before material pressing, so that a material distributing assembly is driven to intermittently move up and down within the range of a pressing mold, when a material distributing column moves downwards, the material can be slightly vibrated, and the material can be uniformly pressed. When the material distribution column moves upwards, the materials in the central area can flow towards the edge to be filled, the materials can be uniformly distributed before being pressed by repeating the process, and the material distribution efficiency is improved. Finally, the material distributing column and the pressing die are combined into a whole to fully press the materials, pressing force is evenly distributed, and therefore the forming quality of the magnetic materials is high.

The invention discloses filtering equipment for producing an aqueous battery. The filtering equipment mainly comprises an upper shell main body; the multi-chamber filtering composite structure and the pre-filtering porous plate are arranged in the upper shell main body; the lower conical water purification chamber is provided with a filtering supporting assembly; the multi-chamber filtering composite structure comprises a square frame with a hollow frame ventilation cavity, an inverted-V-shaped flow dividing guide groove, a flow dividing supporting partition plate with a first gas channel, an auxiliary flow dividing supporting partition plate with a second gas channel and a grid filtering unit. A plurality of first air spraying holes are uniformly distributed in the side surface of the shunting supporting partition plate; a plurality of second air spraying holes are uniformly distributed in the side surface of the auxiliary shunting supporting partition plate; an upper row of flow stabilizing holes and a lower row of flow stabilizing holes are formed in the flow dividing guide groove; according to the invention, multi-stage filtration with different flow rates and filtration degrees is realized, and flow distribution is optimized, so that the service life of a filter medium is prolonged, and the stability and consistency of the whole filter system are improved.

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 provides a method for determining the optimal key furnace parameters of a gas-based vertical shaft furnace based on CFD (Computational Fluid Dynamics), relating to the field of metallurgical equipment design and numerical simulation technology. The method includes: S1, constructing a geometric model of the gas-based vertical shaft furnace and dividing it into meshes; S2, constructing a mechanistic model of gas-solid phase energy and mass flow and gas-solid interphase mass and heat transfer in the gas-based vertical shaft furnace based on Eulerian two-phase flow; S3, determining the input operating parameters of the vertical shaft furnace; S4, performing numerical simulation using the mechanistic model to solve for the chemical reaction field, temperature field, and concentration field until iterative convergence; S5, extracting key production indicators from the simulation results; and S6, determining the optimal combination of key furnace parameters for the gas-based vertical shaft furnace based on the key production indicators. This invention achieves rapid prediction of the optimal key furnace parameters for a gas-based vertical shaft furnace by establishing CFD models of gas-solid phase energy and mass flow and gas-solid interphase mass and heat transfer in a gas-based vertical shaft furnace with different key furnace parameters, performing numerical simulations, and extracting key data for comparison.

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.