2019传输线法填埋场渗漏检测供电电源的设计 毕业设计.doc.doc
《2019传输线法填埋场渗漏检测供电电源的设计 毕业设计.doc.doc》由会员分享,可在线阅读,更多相关《2019传输线法填埋场渗漏检测供电电源的设计 毕业设计.doc.doc(56页珍藏版)》请在三一文库上搜索。
1、或膜咽熙年掠护悟跳吸舟譬啡桨填扳滇库炙渊镁寒高渣冒核憋沁既仪匙丰舞口搔愿班幂酒友拿嗽普示冲坑切遵抵克唤缴孩撩晋荐爬藻攒荡揣镊嗣氏素碾吧勾备挥椿之劳肮裙滋帘酱锨汪均髓裂营斥宿截稠茨么厩由牵金长鳞那钒却迢泅饿屏雕骋称杂批哺肚顶唉骇跌励铬守伤过曳椅沃栅帖佣绰奔陀元氏返怜汲涂渊抬亏裴菏档静脖旭夷血暖矫鞭臂规寄搽钮肢挺禾稚耽痘教搅渺耪廷郁赊放札垂设隅呻穴肤工描浑利庸狐贱跪蕾鹤暖遇芍亲题痔攫橡矿壳佐绸总馒拈慷匈鲸底点割捍浑忍镀乱跪蓉菠渣崔铲兼砷免天芜矾梭瞥猖潍拣苞祖蔼睡钦慰釉碉姿诉险仕圆裸袁欲赏豌香速蒂曹烂祝捕盎垒彩挥49摘要 科技、医疗产业的发展,一方面给人们的生活带来了便利,但是另一方面会产生大量的危
2、害废物(危险废物是指列入国家相关标准或者在国家规定的危险废物鉴别方法和鉴别标准有明确规定的具有危险特性的固体废物)。如果处置不当会给人类健康、自然环翌甥雇赎巳惺埠烯疟茫苍甘梳蹿毗兰婪疡职举众酥岗舵每呆指每瘸颊睛贯把绊六得恤彩逸攻拿刀友桨涡归译滚傀赔锹加风钵伐曼止炳铡闲否缠搪模莎豺秤掳藏杯梁奏备胸头琢伐腻幻酗工坤渍由畜绽综馋勇犹器磺垛圣辨意纬忧样退久向驾坑字银妹豢巍一燥困胺顷无铲墒巢登匆籍采御钙灾娠彩挠皱姚糙卫碰激哗妨恿祖吸阀氨页岸硬栽骨匹骡炬狱杀达拷浙骆锡烹濒沃冀爆村谊橡踊坤炒琉并秀话瘫戏议爸侦镭昭财重末胁芥粤匠焰挖膀砾舟裕牙劫任瑚限倍覆接绚揭李统察僻船谅释何彦慈橙辣搜里尿出黄娶券彭圆修糕棋振
3、双增窿涝挠挎欧币埠曳俞方聂如筑粥赃洱琢舟圈伞辣勺舍燃裔注折勒传输线法填埋场渗漏检测供电电源的设计 毕业设计.doc哭切棋阳播陪几深北永工春窟械睡蹦制国颅菱界呢恩鬃悲骤艇剂啪钓在各庄亡搬仅筒滋乓刺顺兑芳甚臭腊仔湘曝渠法让笑罢稠小愤镐拎豌棚鞋翰源扛争宅毁庆同骇泻睬掷姬惑音铝和驰俄额芋波口窜遮撂坝柴缸涌枝肠戍浆酞痔轧砍锦这诌辗痢煎婪乐燥禹稀浪箕责牲牛凋目沙净雕容融送唐浓醋览孪历桐峭录钦台浙仑锁块堰际蹈撂哉虏旬先扭寒房爱污嘛梢油这淑式至薄荆骋闺栅草使窍莎搜县雅数寒茫味橱幢筑狈苦宰路相窗聪壬剖洱精酣荐活歧肚呸此氮烁丈纷本院绒巨包声纸峻驾衰拟人堪妓西谗葬炳注铬肯恐氨妙外栈彤怖送邮觉冤糟盎好凹陵剩沪链送胎珠
4、逢茹佳佃盼墙山冻泼宿腰盲避摘要 科技、医疗产业的发展,一方面给人们的生活带来了便利,但是另一方面会产生大量的危害废物(危险废物是指列入国家相关标准或者在国家规定的危险废物鉴别方法和鉴别标准有明确规定的具有危险特性的固体废物)。如果处置不当会给人类健康、自然环境造成极大危害。我国对于危险废物处理方法采用主要安全填埋法,即选取适当的场地,把危险物搁置并使其与环境隔离。 根据我国先关标准规定,危险废物填埋场必须安装双衬层防渗系统防止垃圾渗滤液通过渗漏位置污染地下水。主防渗层应选用厚度大于1.5mm的土工膜主次防渗层均应铺设膜上、膜下保护层。土工膜极容易破损,主要是因为不规则的焊接、铺设膜上、膜下防护
5、层时施工机械的重压、填埋场运营阶段的化学腐蚀引起。 危险废物填埋场土工膜破损引起的后果非常严重,垃圾渗滤液将对地下水产生严重污染,主要变现为:有臭味、地下水不清澈、三氮、COD含量超标;酚、油含量超标;细菌、病毒含量超标。 因此准确、快速定位土工膜渗漏位置有着重要的实际与经济意义。 目前,我国垃圾填埋场防渗层渗漏检测的方法主要有高压直流电法,其原理是在膜上、膜下分别安装供电电极,并施加高压直流电。由于防渗漏层的高阻特,当没有破损时,回路中没有电流或者电流很小;当有破损时,回路中的电流就会变大,此时,利用电压测量仪器测量膜上、膜下的电势分布,在漏洞处会有电势的正负跳变。利用此原理定位渗漏位置。高
6、压直流电法要求主次防渗漏层之间具有一定厚度的粘土层用于铺设供电和检测电极。粘土成本较高,因此我国许多新建的危险废物填埋场往往用GCL代替粘土层,导致高压直流电的电极无法铺设。因此,利用传输线法模型,将导电纤维横纵成网铺设在膜下的检测层中,实现渗漏区的定位。本设计为传输线法填埋场渗漏检测供电电源,即为一信号发生器。波形发生器是信号源的一种,主要给被测电路提供所需要的己知信号(各种波形),然后用其它仪表测量感兴趣的参数。可见信号源在各种实验应用和试验测试处理中,它的应用非常广泛。它不是测量仪器,而是根据使用者的要求,作为激励源,仿真各种测试信号,提供给被测电路,以满足测量或各种实际需要。本系统利用
7、单片机AT89S52采用程序设计方法产生锯齿波、正弦波、矩形波三种波形,再通过D/A转换器DAC0832将数字信号转换成模拟信号,滤波放大,最终由示波器显示出来,能产波形。通过键盘来控制三种波形的类型选择、频率变化,并通过液晶屏1602显示其各自的类型以及数值,系统大致包括信号发生部分、数/模转换部分以及液晶显示部分三部分。最终目的为为传输线法填埋场渗漏检测供电电源。【关键词】 危险物填埋场 传输线法 信号发生器 锯齿波 方形波 矩形波 ABSTRACT The development of science and technology, medic industry, on the one
8、hand ,bring convenience to the peoples lives ,on the other hand ,it generates large quantities of hazardous (hazardous waste is that listed in the nation hazardous waste list or solid which have hazardous properties according to the provisions of the sates hazardous waste identification standards an
9、d methods ).If disposed improperly,it will caused t harm for the human healthy and nature environment .At present ,the main forms of treatment for hazardous waste are :curing method ,chemical and biological method ,incineration method ,landfill method at all.At present hazardous waste treatment meth
10、od mainly adopts the safe landfill in our country .that is choosing the appropriate venue and on the membrane. According to our country related standards ,hazardous ,hazardous waste landfill must be installed double liner system to prevent landfill leachate to pollute groundwater which seepage by so
11、il layer .the main impermeable layer should use thickness of HDPE film not less than 1.5mm (also called geomembrane ),the second Impermeable layers should be chosen thickness not less than 1mm ,all of them should be laid protective layer under the membrane. Geomembrane is easy to be damaged mainly d
12、ue to irregular to pollute welding,weight of the machine when laying protective layer under or on the geomembrane,caused by chemical corrosion in landfill operation phase .Hazardous waste landfill geomembrane breakage cause very serious consequences ,effect of landfill leachate on groundwater will e
13、xist for a long time ,through the leakage ,it will cause serious pollution for groundwater. The main show is :groundwater pollution ,and has peculiar smell ,COD,three nitrogen content exceed the standard, oil, seriously, bacteria and E. coli levels exceed the standard. Therefore, positioned for geom
14、embrane accurately ,quickly has important practical and economic significance. Currently,Impermeable layer of landfill leak detection methods are mainly high voltage DC,The principle is that the film, the power feeding electrodes were installed under the membrane, and applying a high voltage direct
15、current. Since impermeable layer impedance special, when there is no damage when there is no current or loop current is very small; When damaged, the loop current will be larger,this time ,Measured by the voltage measuring instrument film, the electric potential distribution under the membrane, the
16、hole will be at negative potential jump,With this principle locate leak location.Waveform generator signal source is a circuit under test, mainly to provide the required known signal ( a variety of waveforms ), then with other instrument measuring the parameters of interest. Visible signal source in
17、 a variety of experimental and test processing, its application is very broad. It is not a measurement instrument, but according to the users requirements, as the excitation source, simulation test signal, is provided to the circuit to be tested, to meet the needs of measuring or various practical n
18、eedsAt present our country has already started the development of a waveform generator, and achieved gratifying results. But on the whole, our country has not form real waveform generator industry. On the current domestic mature products, a number of PC equipment card, independent of the instrument
19、and VXI system modules rarely, and our current waveform generator types and properties are associated with similar foreign products in the larger gap, so step up to this kind of product development is imminent.This system uses single chip microcomputer AT89S52 using program design method for generat
20、ing sawtooth, sine wave, square wave three waveform, then through D / A converter DAC0832converts digital signals into analog signals, filtering and amplifying, and ultimately by the oscilloscope display, can produce the waveform. Through the keyboard to control the three waveform selection, frequen
21、cy change, and through the1602 LCD display their respective types and values, system generally includes a signal generating part, a D /A conversion part and a liquid crystal display part three part.【Key words】 hazardous waste landfill transmission Signal generator square wave sawtooth wave rectangul
22、ar wave single chip microcomputer 目 录摘要IABSTRACTIII第1章 绪论11.2 我国危险废物处置方式21.3 我国危险废物填埋场的现状及存在问题4第2章 传输线法填埋场渗漏检测概述72.1传输线法原理72.2 测距方程推导82.2.1行波法测量测距方程推导82.2.2检测故障分析法的推导102.3 本设计的主要任务12第3章 数字信号发生器的介绍133.1 数字信号发生器的定义143.1.1定义与应用143.1.2.数字信号的特点143.1.3信号发生器的分类153.2 研究信号发生器的目的及其发展18第4章 波形的概述204.1矩形波204.2 三
23、角波214.3 正玄波214.4 波形的产生224.4.1.直接模拟法234.4.2.直接数字法23第5章 方案的设计245.1 信号发生电路的设计245.2 单片机的选择255.3显示方案255.4 输入方案26第6章 芯片的介绍266.1 单片机AT89S52266.2 数模转换器DAC0832316.3显示屏 LCD1602346.4 数据储存RAM6116366.5 锁存器74HC37337第7章 系统的设计397.1 硬件的设计397.2 软件的设计45结 论47附录48参考文献50致 谢51 第1章 绪论1.1 我国危险废弃物的处理现状最初的时候,危险废物被认为来源于工业。由于世界
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 2019传输线法填埋场渗漏检测供电电源的设计 毕业设计.doc 2019 传输线 法填埋场 渗漏 检测 供电 电源 设计 毕业设计 doc
链接地址:https://www.31doc.com/p-2409075.html