六月 9, 2020

英国代写:供水系统报告的简介

本篇关于英国代写的文章是一篇供水系统报告的简介,由英国论文时论文代写平台提供。

英国代写:供水系统报告的简介

本文是基于PLC控制工程的恒压供水系统的技术报告。业主是SAIT的住宅建筑Owasina Hall。传统的供水系统很难一直保持稳定的水压。因此,本项目主要研究开发一种基于VFD和PID控制方法的PLC控制的供水系统,以降低能耗,更好的实现供水。

对供水系统的主要要求包括原理和特性分析。卡尔加里的居民用水为每人每天429升,Owasina礼堂高83.5米,可容纳880名学生,这意味着Owasina礼堂每天的平均用水量约为377,520升,水头至少为83.5米。

英国代写:供水系统报告的简介

泵的可接受型号为70HB1753-Gouds高压离心增压泵。泵站安装了4台泵,其中3台用于正常运行,最后一台作为备用。本文对自动调压供水系统的功能、原理和特点进行了分析。本文将从系统总体设计和实际需求出发,以简单的方式展开技术讨论,同时也将紧密联系现实生活,致力于设计一个稳定、简单、安全、低功耗的供水系统。我们还将在设计中安装手动控制器,以确保在自动系统出现故障时可以亲自处理整个系统。

英国代写:供水系统报告的简介

控制电路用于监控电源电压、速度设定值、直流电压和输出电压、速度,对变频器的输出进行调节和控制。当出现过载或电压异常情况时,控制电路还应通过切断变频器的电源或减小电流来保护电动机和变频器本身。控制电路通过PLC、HMI或计算机响应操作员的指令。在逆变器与设定的转速基准之间有一个反馈路径,通过对输出转速与基准转速进行比较,将输出转速调整到所需的转速。

英国代写:供水系统报告的简介

This is a technical report for a Constant Pressure Water Supply System based on PLC Control project. The client is The Owasina Hall, a residence building of SAIT. Traditional water supply systems can hardly keep stable water pressure all the time. Therefore, this project is mainly focused on developing a PLC controlled water supply system based on VFD and PID control method to reduce energy consuming and enable a better way of water supply.
The main requirements for the water supply system include the principle and characteristics analysis. The residential water usage of Calgary is 429 litres per person per day, and The Owasina Hall is 83.5-meter high and it accommodates for 880 students, which means the average daily demand of water of Owasina Hall is approximately 377,520 litres and the water head is at least 83.5 meters.

英国代写:供水系统报告的简介
Then the acceptable model of pumps is 70HB1753-Gouds high-pressure centrifugal booster pump. There are four pumps installed in the pump station, and three of them apply in regular operations, the last one is for backup use.The following technical report analyzes the functions, principles and characteristics of automatic pressure regulating water supply system.This paper will be based on the overall system design and actual demand in order to expand technical discussions in simple terms, also will be related to real life closely and commit to design a stable, simple, safe and low power consumption water supply system. We will also install the manual controller in the design to assure the entire system can be handled in person when the automatic system breakdown.

英国代写:供水系统报告的简介
The control circuit is used to monitor supply voltage, speed set point, DC voltage and output voltage and speed, adjust and control the output of the VFD. When the condition of overload or abnormal voltage occurs, the control circuit should also protect motor and VFD itself by de-energizing VFD or reducing current. The control circuit responds the instruction by an operator through a PLC, HMI or a computer. There is a feedback path between the inverter and the set speed reference which compares the output speed and the reference speed to adjust the output speed to required speed.

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