5results about How to "Improves airflow uniformity" patented technology

The utility model discloses a kind of high-efficiency catalyst material grading equipment, it is related to catalyst material processing technical field.The utility model includes equipment frame, and grading box is movably connected in the equipment frame inner chamber, and grading box one side is equipped with discharge port.The utility model is equipped with discharge assembly, using the linkage structure of slide bar, receiving block, sealing plate and extruding block, the automatic switching of grading box between screening and discharging state is realized, when screening, spring pushes receiving block to make sealing plate tightly clamped discharge port, ensure sealing, after screening is completed, cylinder drives grading box to rotate, extruding block compreses receiving block to drive sealing plate to separate discharge port, realize automatic discharge, this design cleverly uses equipment self-motion as power source, without additional driving device, both solve the problem of material leakage in traditional vibrating screening, and also ensure the accurate opening and closing of discharge port through mechanical linkage, significantly improve material recovery rate and equipment reliability.

The utility model discloses a kind of filter elements of self-suction filter type anti-particle respirator, belong to dust respirator technical field, including bottom shell, fixedly arranged in the three-dimensional filter assembly of the bottom shell inside and the upper cover buckled in the top of the bottom shell, the outside of the bottom shell is provided with filter material renewal assembly, electrostatic filter paper is provided between the three-dimensional filter assembly and the upper cover, the both ends of the electrostatic filter paper protrude the gap between the upper cover and the bottom shell and connect on the filter material renewal assembly.The utility model is through the surface filter paper and three-dimensional flow guide structure of renewability, synchronously conquers the double bottleneck of material waste and insufficient air permeability in prior art, while having use comfort along with guaranteeing protection performance.

The utility model discloses a heating oven capable of circulating hot air, and belongs to the technical field of heat treatment equipment. Comprising a main body structure and a circulating pipeline, air enters an air duct through an air inlet and is heated through the interior of a limiting baffle, and heated hot air flows in the direction of an inclined flow guide plate, is sucked upwards by a top air feeder and is sent to an upper cover plate area; hot air is uniformly blown to the surface of a workpiece in the drying oven through the opening in the distribution plate to realize uniform heating, the hot air exchanges heat in the drying oven and then flows into the external circulating pipeline from the side surface, the circulating pipeline guides the recycled hot air back to the side surface opening again, and the hot air enters the heating mechanism to be heated again; a continuous and efficient hot air loop is formed, and the heat energy utilization rate is greatly improved.

The utility model belongs to the field of octagonal hatching box machines, and particularly relates to a ventilation structure of an octagonal hatching box machine, which comprises a case, an air inlet pipeline is fixedly arranged in the middle of the case, air outlets are arranged on two sides of the upper end of the case, a water cooler is fixedly arranged in the middle of the inner side of the case, and a ventilation fan is arranged on the water cooler. A mounting frame is fixedly mounted in the case, a bearing seat is fixedly mounted at the upper end of the mounting frame, and a bearing is fixedly mounted in the bearing seat. The two air inlet pipelines are arranged in the middle of the machine body for air inlet, the two sides of the machine body for air outlet, and the bottoms of the air inlet pipelines extend to the positions close to the centers of the fan blades, so that the negative pressure of the air inlet pipelines is greatly increased, the air speed in the air inlet pipelines is greatly increased, and the uniformity of airflow in the equipment is optimized; and through uniform distribution of the water cooler structure from top to bottom, the water cooling effect is greatly improved, and the concentration of carbon dioxide in the machine body can be reduced.

The present application relates to the technical field of clean room, and discloses a clean room dynamic air flow purification system, which comprises a clean room and an air treatment assembly, the clean room is divided into a return air cavity and a clean cavity by a partition plate, the bottom of the partition plate is provided with a plurality of groups of ventilation grilles for connecting the return air cavity and the clean cavity, so that the air flow in the return air cavity and the clean cavity circulates and flows; the top of the inside of the clean cavity is provided with a plurality of groups of air supply pipes, the air supply pipes are connected with air supply pipelines, the top of the inside of the return air cavity is provided with a plurality of groups of return air pipes, and the return air pipes are connected with return air pipelines for conveying the return air in the return air cavity to the air treatment assembly for purification. The design of the double-side return air cavity expands the return air collection range, and the directional air supply function of the louvered air outlet is matched, so that the air flow uniformity in the clean cavity is improved, and the air flow dead angle is effectively eliminated.