摘要：风机是火力发电厂中的关键辅机,轴流风机因效率高和能耗低而被广泛采用。在实际运行中。不少电厂因轴流风机特别是动叶可调轴流风机的可靠性差,频频发生故障,导致电厂非计划停机或减负荷。影响了机组发电量。因此。从根本上解决这些问题。提高大型火电厂轴流风机运行的可靠性显得十分必要和迫切。本文说明了影响电站风机可靠性的因素。提出了在设计和运行中提高轴流风机可靠性的对策。

摘要：Aim To put forward a type of math model for optimizing fan′s twisting *** This math model wu based on turbo-machinery Euler equations and calculus of variation, it was conducted for optimizing the aerodynamic parameters along the blade height of the fan, and the math method was produced for the optimization of fan's twisting law. Results The type 6102Q engine cooling fan was optimized by use of this model, and the calculation on data were contrasted with those of iso-reaction coefficiency flow type and free vortex flow type. Some probleme existing in long blade can be solved by use of above method. Conclusion The design parameters needn't be determined artificially, so calculating results are more rational to a high degree than that from other mehods.

摘要：Aim To raise the H-NE math model for designing engine *** Thismodel was founded on multi-nonlinear regression technology,and the quadratic equatingmethod was used to smooth original *** the sensitivity analysis about radiatoroptimization designing,some major restraints were *** Type 1301C radiator wasoptimizingly renwed by use o this model,and the new radiator is more excellent than theold one in respect of the heat transfer factor and the manufacturing *** Theradiation performance can be improved,the area can be reduced,and the fitting scope can bewidened if this model is used in designing radiators.

摘要：The primarily designed high speed rotary self cleaning air filter adopted axial outlet and tangential inlet, the filtering efficiency of the filter was relative low and couldn't reach the lowest efficiency limit. In order to enhance the filtering efficiency, the inlet and outlet structure of this new style of air filter were improved and the experimental research was carried out. The results showed that the filtering efficiency of the filter exceeded the lowest limit, this new style air filter can be practically developed further.

摘要：Aim To get the analytical for laminar viscous flow in the gap of two parallel rotating disks. Methods By estimating the order of magnitude of each term in the Navier-Stokes equations to drop small terms and achieve the required simplified differential equations, and by integrating the equations to obtain the solution for theflow between two rotary disks. Results Parameters related to the laminar viscous flow in the gap between two parallel rotary disks, such as the velocity, the pressure, the flowrate, the force, the shearing stress, the torque and the power derived. Conclusion The result provides a theoretical basis and an effective method for the designs of the devices connected with the laminar viscous flow in the gap between two parallel rotary disks.

摘要：针对德国DORST公司生产的TPA140型粉末压机的主机构进行分析研究，根据压制曲线和脱模曲线分析主机构的结构组成，进一步反求机构的尺寸参数。采用优化方法求得六杆机构的尺寸；采用数值方法求得关键部件凸轮的轮廓曲线，从而实现了工艺所要求的压制曲线和脱模曲线。

摘要：为解决紫晟煤业2-1111巷沿空巷道支护难题,本文对试验巷道的地质概况设立2个围岩结构观测点,并对2个点的顶板岩层结构与点帮煤体结构进行观测。根据围岩结构发育状况、顶板围岩与点帮孔煤体强度测试,确定顶板粉砂岩需锚杆支护强化粉砂岩强度,在巷道顶板浅部形成“锚杆-围岩”联合承载结构;煤柱帮需打设锚索,防止煤柱帮发生较大的变形破坏,依据类似条件巷道(2-1031)支护和变形情况对2-1111巷支护参数进行设计。该技术为2-1111巷道的推进与持续开采提供参考,增加支护强度,减少煤矿井下事故发生。

摘要：本文简述了顺酐装置导热油系统中膨胀罐的重要作用 ,对膨胀罐容积及其安装高度的设计计算与应用进行了初步探讨 。

摘要：利用量子异或门和 Hadamard旋转门 ,设计了 Shor量子纠错码的编码量子线路 。