关于囊体管道水力输送系统优化设计的初步研究

发布时间：2018-03-05 17:11

本文选题：水力输送　切入点：囊体　出处：《太原理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：现代社会有四大传统以运输为主体的交通运输方式:公路运输方式、铁路运输方式、水路运输方式和以航空运输方式。虽然是主流的运输方式,但是随着现代社会的飞速发展,工业产业的结构不断升级,社会发展的结果导致现存的运输方式已经与社会发展的速度不匹配,产能无法快速和有效的输出。目前有一种新型的运输方式,补充和完善了现存的交通运输方式,它不仅符合节能环保的标准,而且自身还具有许多其他运输方式不具有的优点,这种运输方式为囊体管道水力输送,这种新型运输技术具有较为广阔的前景。本文是基于国家自然基金项目(51109155和51179116),采取理论分析与数学方法相结合的研究方法,主要是对于影响囊体管道总成本的因素进行研究分析,得出影响囊体管道总成本各因素的具体表达式,通过结合数学方法得到单级囊体管道的最佳管道直径和囊体尺寸,以及多级囊体管道中两泵站之间管道距离长度和管道直径的表达式,进而得出最佳囊体管道的直径和两泵站之间管道的距离长度的具体数值。1.本文中单级囊体管道与多级囊体管道的区别在于:单级囊体管道适合输送距离较近,只需要一台泵站提供动力就能满足需求。而多级囊体管道适合输送距离较远,一台泵有时无法满足需求,需要多个连续的泵站提供动力。2.单级囊体管道的设计程序重点是:一个在最佳中性浮力状态下的囊体,通过力的平衡建立相关的表达式。3.单级囊体管道中成本的组成是:资本成本(管道、囊体、泵站、泵房、囊体入口和出口机制)和经常性费用(即操作人员工资和能源成本)构成。其中,水泵房成本,囊体的入口和出口的成本,和操作人员的工资对货物的运输率是没有影响的,它们可以被视为固定成本。因为固定成本是不可改变的,它们是不会进入最小化的过程,因此,不包括在成本方程式中。4.单级囊体管道中,提出了特征长度这个概念,在囊体管道输送中,囊体一个接一个的连续运输,把一个囊体的长度加上这个囊体与紧挨着的另一个囊体之间的距离的和,称之为特征长度。特征长度的提出是为了更好的研究管道内一个囊体的运动状态,这种状态在管道内是无限循环的状态。5.单级囊体管道输送的设计中,假设有恒定的摩擦系数,则可以设计成一个单一自由度的几何规划问题。随着给定输入参数,就可以得出载体流体的排出量、管道直径、囊体的尺寸、囊体的速度、泵的扬程和成本的表达式。6.多级囊体管道设计程序重点是:对管道的直径和一个在给定的功率情况下连续两个泵站之间的间距的确定,这样的总成本是最小的。7.多级囊体管道中,总成本的是组成是:泵的能量成本、管道的成本和囊体的成本的总和。重点在于建立各个成本的表达式,进而得到总成本的表达式,基于最小成本原则下,结合数学方法得出最佳囊体管道的直径。本文得出的关于水利运输新型技术研究成果,可作为具有参考价值的成果。即可促进囊体水力输送技术的发展,又可使该技术具有更为实际的应用。更为重要的是为该水力输送技术的后续研究提供了源源不断的理论数据。
[Abstract]:In modern society, there are four traditional to transport as the main mode of transport: road transport, rail transport, water transport and air transport to. Although the mainstream mode of transportation, but with the rapid development of modern society, the industrial structure constantly upgrading, social development as a result of the existing mode of transport with the speed of social development does not match the output capacity to quickly and effectively. There is a new mode of transportation, supplement and perfect the existing mode of transportation, it not only conforms to the standard of energy saving and environmental protection, but also has many advantages over other modes of transport do not have, this mode of transport for hydraulic capsule pipeline transportation, the new transport technology has a broad prospect. This paper is based on the National Natural Science Foundation of China (51109155 and 51179116), take the theoretical analysis and Mathematics The research method of combining, is mainly for the factors affect the total cost of the capsule pipeline are analyzed, then the specific expression of each factor affect the total cost of the capsule pipeline, the optimal pipeline single vesicle diameter pipe and a bag body size by combining mathematical methods, the expression between the two pipeline pumping stations and multistage capsule pipeline in the distance and the diameter of the pipe, and then draw the difference between single level capsule pipeline between the best bag pipe diameter and two pumping station distance specific values of.1. this paper pipe and multistage capsule pipeline is single capsule pipeline suitable for conveying distance, only need a pump to provide power to meet needs. And multilevel capsule pipeline suitable for conveying distance, a pump sometimes can not meet the demand, design procedures require multiple continuous pumping power.2. single stage pipeline heavy bag The point is: one in the best state of the neutral buoyancy bag, through the balance of power established consisting of costs related to expression of.3. single stage capsule in the pipeline is the cost of capital (pipeline pumping station, pumping station, capsule, the capsule entrance and exit mechanism) and recurring costs (i.e. wages and operating personnel the cost of energy). Among them, the pump room cost, the bag body of the entrance and exit costs, and operating personnel wages on the cargo transport rate is not affected, they can be regarded as fixed costs. Because the fixed cost is not changed, they are not into the minimization process, therefore, does not include in the cost equation of.4. single stage capsule pipeline, put forward the concept of the characteristic length, the bag body pipeline, bag body with one continuous transport to another bag a bag body together with the length of the bag body and close to the distance And, called the characteristic length. The characteristic length is proposed to the motion state of a capsule pipeline research better within the body, the state is in the pipeline design of conveying state.5. single stage capsule pipeline infinite loop, assuming a constant friction coefficient, it can be designed into a geometric programming problem a single degree of freedom. As the input parameters, output, you can get a carrier fluid pipe diameter, the capsule body size, capsule speed, pump head and the cost of the design program expression.6. multistage capsule pipeline point is: to determine the diameter of the pipeline and a pumping station in two consecutive the power under the given distance, the total cost of this is.7. capsule in multistage unmum, the total cost is composed of: pump energy cost, total cost and the cost of the capsule pipeline. The key is to establish the cost Expression, then get the expression of the total cost, based on the principle of minimum cost, combined with the mathematical method to draw the best bag pipe diameter. The new research results about water conservancy transportation technology, can be used as the reference value of the results. The capsule can promote the development of the hydraulic transport delivery technology, and the technology has more application for real. What is more important is to provide theoretical data for further research Everfount conveying technology of the hydraulic.

【学位授予单位】：太原理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TV134

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