3results about How to "Unobstructed airflow" patented technology

The invention relates to the technical field of drying, and discloses a solar heat collection tube heating and drying device and a tube row manufacturing method thereof.The solar heat collection tube heating and drying device comprises a first rack, and a first heat collection module is arranged on an inclined mounting platform formed by a first-stage step and a second-stage step of the first rack; a drying cavity defined by first steel plates is installed on the outer wall of the three-stage step of the first rack, and a first partition plate is arranged in the drying cavity. A second partition is arranged on the top surface of the first partition, a third partition is arranged on the side wall of the second partition, and an air delivery pipe is arranged between the third partition and the first partition; an air inlet shutter is mounted on the first steel plate, a fan opposite to the air inlet shutter is mounted on the second partition plate, and an exhaust shutter is mounted on the first steel plate; a supporting beam located above the third partition plate is arranged on the first rack, a footstand is arranged on the supporting beam, and a drying bin used for drying corn is placed on the footstand; according to the device, the solar energy utilization rate is increased through the heat collection structure, heat collection and drying chambers are reasonably partitioned, the airflow circulation path is clear, and stable drying of corn is achieved.

This utility model provides a sealed spline assembly nozzle, including a locking block with a first through hole at its center. A hollow integral sleeve is installed below the locking block, and a sealing material is installed between the locking block and the integral sleeve. A hollow sliding sleeve is installed on the integral sleeve, and a nozzle is installed at the distal end of the sliding sleeve. The fluid channel of the nozzle is axially connected to the inner cavity of the sliding sleeve. The integral sleeve includes a boss with a hollow protruding nozzle at its top center. A third through hole is located at the center of the sealing material, and the protruding nozzle passes through the third through hole and communicates with the first through hole. The bottom of the boss is connected to a hollow cylinder, and the inner cavity of the protruding nozzle communicates with the inner cavity of the cylinder. The sliding sleeve is slidably fitted onto the cylinder, and its inner cavity communicates with the inner cavity of the cylinder. The beneficial effects of this utility model are: through structural optimization, this utility model replaces the traditional external air pipe with an internal straight-through air pipe, which can effectively prevent air leakage and ensure the stable and reliable performance of the nozzle.

This utility model discloses a laminar flow bed air vent curtain device, including a laminar flow bed, a bed frame, and an air intake fan. A canopy frame is fixedly connected to the side of the bed frame, and a protective canopy is movably connected to the canopy frame. An air vent blocking component is detachably installed on the air intake fan. The air vent blocking component includes a fixed base, and two pipe clamps are fixedly connected to the fixed base. A protective cover for preventing the canopy from blocking the air intake of the air intake fan is detachably installed on the pipe clamps. With the above device, when the canopy is too long or may sag due to airflow, the auxiliary pulley on the fixed base cooperates with the pressure pulley on the side of the laminar flow bed. The torsion spring inside the pressure pulley clamps and fixes the folded canopy, preventing the canopy from being attracted by the airflow of the air intake fan and blocking the protective cover. This ensures unobstructed airflow to the air intake fan, maintains stable clean airflow in the laminar flow bed, and reduces the weakening of air purification effect and the risk of patient infection caused by the canopy blocking the air intake.