3results about How to "Improve low efficiency" patented technology

This invention provides a method for calculating segmented discontinuous solar radiation temperature gradients in enclosed stacked aqueducts, relating to the field of aqueduct technology. The method divides the inner cavity of the enclosed stacked aqueduct into a gas-phase coupled heat transfer zone, a gas-liquid phase interface zone, and a fluid heat source anchoring zone based on water level height, constructing a thermo-solid coupled heat transfer model that distinguishes the properties of the media. Through this partitioning, the heat exchange characteristics of different regions can be accurately matched, establishing a segmented discontinuous solar radiation temperature gradient kernel function along the height coordinate. Based on the thermo-solid coupled heat transfer model that distinguishes the properties of the media, the discontinuous solar radiation temperature gradient kernel function is used as a boundary driving source, substituted into the transient nonlinear heat conduction partial differential equation for iterative solution, outputting a discontinuous solar radiation temperature gradient curve containing abrupt step characteristics at the water surface line. This method solves the problem of inaccurate calculation of solar radiation temperature gradients in enclosed stacked aqueducts and is applicable to the calculation of solar radiation temperature gradients in enclosed stacked aqueducts.

This invention discloses a millable composite casing sub for side-drilling window opening, its preparation method, and its application. The millable composite casing sub comprises the following components: a matrix, a lubricating phase, and brittle phase reinforcing particles; the matrix is ​​an aluminum alloy matrix; the lubricating phase is graphite particles; and the brittle phase reinforcing particles are brittle mineral particles. During side-drilling window opening operations, an integrated hydraulic directional device is seated inside the lower steel casing below the casing sub. A gyroscope is used for precise orientation, and then a milling cone is lowered to perform side-drilling window opening. The sub body is milled using the milling cone to form the initial window. This invention, while ensuring the overall connection strength and sealing of the wellbore, locally alters the millability of the casing material at the planned window opening point. Through material and structural innovation, it replaces traditional steel casing, shortens the operation cycle, reduces the difficulty of milling operations, and extends the service life of the milling cone, thereby achieving high efficiency, low cost, and safety and reliability in window opening operations.

The utility model relates to tobacco grading technical field discloses a kind of tobacco grading device and control system based on spectral technology, the tobacco grading device based on spectral technology, including sorting table, the one side of sorting table is equipped with tobacco conveyer, the one side of tobacco conveyer is equipped with material distributing conveyer, the one side of material distributing conveyer is equipped with discharge conveyer, the other side of tobacco conveyer is equipped with electric control cabinet, the bottom of tobacco conveyer is equipped with material returning conveyer, the top of tobacco conveyer is fixedly connected with box, the inner wall of box is fixedly connected with partition, the one side of partition is provided with moving structure. Tobacco is transported to box by tobacco conveyer, industrial camera cooperates with light supplement lamp to obtain tobacco appearance image, height adjusting structure drives its adjustment height to adapt different tobacco, cleaning structure guarantees the cleanness of industrial camera, near-infrared spectrometer detects tobacco inherent quality comprehensively through moving structure.