矿山深部开采水力通风换热机动力源研究

发布时间：2018-04-15 23:31

本文选题：水力通风换热机 + 动力源　；参考：《中南大学》2014年硕士论文

【摘要】：摘要：在深部开采过程中需发展人工降温技术,依据水能利用理论,提出了在深井或超深井矿山采掘工作面采用水力驱动通风机(局部),实现通风降温高效联合的设想,并已成功试制实验室样机一台。水力通风换热机进行现场应用试验前,水是其关键性因素,既是风机的动力来源,又是通风换热发挥降温效能的冷载体,还是装置湿式除尘的洗剂。基于此,本文对矿山的供排水系统及水能情况进行了研究。研究的主要工作有： (1)在课题组前期研究基础上,介绍了水力通风换热机的工作原理,从能量转化角度分析了水力通风换热机,将水力通风换热机划分为动力系统、机械能转换系统、气液换热系统、排水系统4个能量子系统,寻得评价各能量子系统性能好坏的指标。 (2)选定风量、风速、干球温降、制冷量、第一换热效率作为水力通风换热机的主要输出参数,水量、水压、水温、水质作为水力通风换热机的主要用水参数。针对水力通风换热机的这些参数,设计了实验室模拟条件下水力通风换热机改进后性能参数的测定实验。通过实验,测得水力通风换热机各性能参数的数值。 (3)根据实验数据,分析了改进后样机的运行状况。针对装置存留问题如：风量偏小、动力效率分析误差较大、风机静压不足等,分析了样机存在问题的原因,形成进一步解决方案。 (4)分析了水力通风换热机的用水要求,基于假定条件,建立了水力通风换热机的主要用水参数和主要输出参数的数学关系。利用实验数据,确立了水力通风换热机上述参数间存在的统计学关系。 (5)根据文献和现场资料,分析了深井或超深井矿山的水源,并计算水量。分析了矿山用水的构成,总结了矿山的各用水地点。研究了矿山的给排水系统,总结了供水、排水管网的类型及功能,并进行了水力和水量计算。 (6)根据对矿山水源、用水的构成、给排水系统进行研究的结果,分析了矿山深部开采水能资源的来源,计算了水能资源的蕴藏量；分析了水能资源的存在形式、应用方式及可用性,着重分析了其中可用于水力通风换热机的水能资源,并进行了相关计算。具体到研究设备上就是,明确了哪些水能在水力通风换热机现场应用试验中可以加以利用,且容易利用。 (7)分析了实验室模拟实验和现场应用试验的不同,总结了水力通风换热机进行现场应用试验所需要的试验条件。结合从某些深井矿山收集的现场资料,分析了水力通风换热机在进行现场应用试验时,可能出现、面临的问题。 (8)根据分析结果,提出了分期渐进进行现场应用试验的设想,初步拟定了水力通风换热机现场应用试验的试验方案。在现场应用阶段,还可以改进和研究除湿,除尘等问题。
[Abstract]:Abstract: it is necessary to develop artificial cooling technology in deep mining process. According to the theory of water energy utilization, the idea of adopting hydraulic driven ventilator (local fan) in deep or ultra-deep mining face is put forward to realize the combination of ventilation, cooling and cooling efficiency.And has successfully produced a prototype laboratory.Before the field application test of hydraulic ventilation heat exchanger, water is the key factor, which is not only the power source of fan, but also the cold carrier of ventilation heat transfer to play the cooling effect, and the washing agent of wet dust removal device.Based on this, the mine water supply and drainage system and the situation of water energy are studied in this paper.The main tasks of the study are:1) on the basis of the previous research of the research group, the working principle of the hydraulic ventilation heat exchanger is introduced, and the hydraulic ventilation heat exchanger is analyzed from the angle of energy conversion. The hydraulic ventilation heat exchanger is divided into power system and mechanical energy conversion system.Four energy subsystems of gas-liquid heat transfer system and drainage system were used to evaluate the performance of each energy quantum system.2) selecting air volume, wind speed, dry ball temperature drop, refrigerating capacity, first heat transfer efficiency as the main output parameters of hydraulic ventilation heat exchanger, water quantity, water pressure, water temperature and water quality as the main water use parameters of hydraulic ventilation heat exchanger.Aiming at these parameters of hydraulic ventilation heat exchanger, an experiment was designed to measure the improved performance parameters of hydraulic ventilation heat exchanger under the condition of laboratory simulation.The parameters of hydraulic ventilation heat exchanger were measured by experiments.According to the experimental data, the operation status of the improved prototype is analyzed.In view of the problems such as small air volume, large error in dynamic efficiency analysis and insufficient static pressure of fan, the causes of the problems in the prototype are analyzed, and further solutions are formed.4) the water requirement of hydraulic ventilation heat exchanger is analyzed. Based on the assumption condition, the mathematical relationship between the main water consumption parameters and the main output parameters of the hydraulic ventilation heat exchanger is established.Based on the experimental data, the statistical relationship between the above parameters of hydraulic ventilation heat exchanger is established.According to the literature and field data, the water source of deep or ultra deep mine is analyzed, and the water quantity is calculated.The composition of mine water use is analyzed, and the water use sites of mine are summarized.The water supply and drainage system of mine is studied, the types and functions of water supply and drainage pipe network are summarized, and the hydraulic and water quantity calculation is carried out.Based on the results of the research on mine water source, water use composition and water supply and drainage system, the source of deep mining water resources in mine is analyzed, the reserves of water energy resources are calculated, and the existing forms of water energy resources are analyzed.The application mode and availability of hydraulic energy resources which can be used in hydraulic ventilation heat exchanger are analyzed and the relevant calculation is carried out.On the research equipment, it is clear which water can be used in the field application test of hydraulic ventilation heat exchanger, and it is easy to use.This paper analyzes the difference between the laboratory simulation experiment and the field application test, and summarizes the test conditions needed for the field application test of the hydraulic ventilation heat exchanger.Based on the field data collected from some deep well mines, the problems that may arise and face when the hydraulic ventilation heat exchanger is tested in the field are analyzed.Based on the analysis results, the tentative plan of field application test of hydraulic ventilation heat exchanger is put forward.In the field application stage, we can also improve and study dehumidification, dust removal and other problems.
【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD724

【参考文献】