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1、基于流量的水泵运行数据采集系统设计摘要在连续生产过程中，有各种物料在工艺设备间传送。为了有效地进行生产操作和工艺控制，经常需要测量介质（液体、气体和蒸汽等）的流量。同时，为了进行经济核算，也需要知道在一段时间内流过的介质总量。所以，流量监测是控制生产和进行经济核算所必需的一个重要手段。按照控制任务要求，流量控制系统一般是定值的，根据较快较准较稳得性能要求，采用单闭环控制系统，控制规律是PID控制规律。闭环相比开环可以减小误差，满足需要。流量控制系统一般有四部分组成，控制器、执行器、被控对象以及流量检测传感变送器。控制器的输入由给定与反馈的偏差决定，控制器的输出控制调节阀，从而控制被控对象。传感
2、变送器将被控变量检测并变送到输入端与给定进行比较，得到的偏差作为控制器的输入，闭环控制系统是按偏差控制的，因而性能比较优越。基于流量分析的住宅类水泵优化选型研究，在二次供水设计流量算法保守为前提的背景下，为选择最高效水泵提供依据，从居民实际用水规律的角度出发，对不同住宅生活区的用水规律进行了监测和分析。以区域差异用水当量等影响因素为依据，根据实际用水的高效与否对供水设备成本有重要的影响，水泵的优化选型对整个供水系统的节能降耗有着实际影响，但水泵绝大时间偏离设计流量，验证表明转速低，运行平稳，易于维护随流量的变化存在一个高效运行区域，该高效运行区域在高效区运行就需要综合研究水泵性能曲线和居民对水
3、泵优化选型有着至关重要的作用，利用对流量的水泵运行数据的采集，通过优化选型选出效率高的水泵，且流量越小，节能效果越明显，在节能降耗日益被人们关注的今天，水泵作为供水系统中耗能最多的设备其运行性质的作用和意义需具有普适性尽量避免较大的能源浪费。在特定频率下不同流量时水泵的运行效率，偏离额定流量负载点越多水泵效率越低，为降低水泵耗能使其始终用水规律并根据居民用水量的变化范围和集中区间对水泵的优化，以达到使水泵始终运行在高效区间节能的目的。本课题要求水泵运行在流量模式（即在热水情况下运行至流量峰值）下，利用变送器测量水泵的关键参数，在流量达到峰值时点采集数据，并记录在数据库中关键词：单片机叶片式霍尔
4、传感器流量控制AbstractIn the continuous production process, various materials are transferred between the process equipment. In order to carry out effective production operation and process control, it is often necessary to measure the flow of medium (liquid, gas, steam, etc.). At the same time, in order t
5、o conduct economic accounting, it is also necessary to know the total amount of medium that flows over a period of time. Therefore, flow monitoring is an important means to control production and economic accounting. According to the control task requirements, the flow control system is generally fi
6、xed value, according to the faster, more accurate and more stable performance requirements, using a single closed-loop control system, the control law is the PID control law. Compared with the open loop, the closed loop can reduce the error and meet the need. Flow control system generally consists o
7、f four parts, controller, actuator, controlled object and flow detection sensor transmitter. The input of the controller is determined by the deviation between the given and feedback, and the output of the controller controls the regulating valve so as to control the controlled object. The sensor tr
8、ansmitter detects the controlled variable and sends it to the input end for comparison with the given one. The deviation obtained is the input of the controller. The closed-loop control system is controlled according to the deviation, so its performance is superior.Based on the flow analysis of resi
9、dential water pump optimization selection research, in the secondary water supply design flow algorithm conservative as the premise, to choose the most efficient water pump to provide a basis for the perspective of the actual law of water use by residents, different residential areas of the law of w
10、ater use were monitored and analyzed. Based on regional differences influence factors such as water yield, according to the practical water efficiently or not has important influence to the cost of water supply equipment, optimization of pump selection has a real impact on the whole water supply sys
11、tem of saving energy and reducing consumption, but the pump deviate from the design flow, the vast time validation show that low rotational speed, stable operation, easy maintenance exist an efficient operation along with the change of flow area, the efficient operation area to work in high efficien
12、t area will need comprehensive study of the water pump performance curve and residents has a vital role on pump optimization selection, use to pump operation of the traffic data collection, by optimizing the selection of high efficiency of the pump are selected, and the smaller the flow, The more ob
13、vious the energy saving effect is, the more people pay attention to the energy saving and consumption reduction today, the pump as the most energy-consuming equipment in the water supply system, the function and significance of its operation nature needs to be universal to avoid large energy waste a
14、s far as possible. The more load points deviate from the rated flow rate, the lower the pump efficiency will be. In order to reduce the energy consumption of the pump and make it always use water, the pump is optimized according to the change range and concentration range of the residential water co
15、nsumption, so as to make the pump always operate in the high efficiency range and save energy.This subject requires the pump to operate in the flow mode (that is, running in hot water until the flow peak), and use the transmitter to measure the key parameters of the pump, and collect data at the point when the flow reaches the peak, and record it in the databaseKeywords: MCU vane hall sensor flow control目录摘要1目录4前言6第一章绪论7 1.1 设计目的与要求7 1.1.1 设计目的7 1.1.2 设计的意义7 1.1.3 要求完成的主要任务81.2研究目的、意义及研究内容8 1.2.1流量计的应用领域.8 1.2.2流量计概述8第二章 自来水厂生产工艺.
