文档介绍：毕业设计(论文)
题目电热器控制系统设计
院系名称西南科技大学
班级
学生姓名
指导教师
评阅教师
时间
摘要
热水器可分为燃气式、电热式和太阳能三大类;电热式热水器又可分为储水式和即热式两种;即热式热水器又可分为电热管和电热膜两种。总体来讲,电热水器,特别是即热式热水器已逐渐成为家庭生活时尚。其特点是安全、出热水快、节水节能、体积小、价格低,唯一的缺点是功率容量大,功率6KW/220V时,,这是即开即热特点所决定的。本设计的主要特点是恒温以及温度可调。采用单片机来对它们进行控制不仅具有控制方便、简单和灵活性大等优点,而且还可以大幅度提高被控温度的技术指标,从而进一步提高产品的质量。本设计运用80C51单片机系统为主控制芯片。其外围电路主要由水温检测和A/D转换、晶闸管控制、水温和状态显示、按键输入以及稳压电源等部分组成。
关键字:温度控制 80C51 A/D转换
Water heater can be divided into gas-powered, DianReShi and solar three major categories; DianReShi water heater and can be divided into water type and . thermal type two kinds; Tankless heater, can divide again for electric heat pipe and electrothermal two kinds. Generally speaking, electric water heater, especially tankless heater has gradually e family life style. Its characteristic is safe, out of hot water quickly, save energy, small volume, low price, only drawback is the power capacity, 6KW / 220V power, current reaches A, it is namely open . thermal characteristics of the decision. The main characteristic of this design is constant temperature and temperature is adjustable. Adopts singlechip to their control not only has the control convenient, simple and flexible, but also advantages could increase the technical indexes of accused of temperature, so as to further improve the quality of the products. The 80C51 SCM system design USES mainly control chip. Its periphery circuit consists mainly of water temperature detection and A/D conversion, thyristor control, temperature, and status display, keystroke and ponents.
Key word: temperature control 80C51 A/D conversion
目录
系统介绍
2 硬件设计
。
3软件设计
结束
系统介绍
系统原理
该热水器的工作原理为:温度传感器及有关电路将电热水器出口温度转化为电压,单片机利用本身具有的A/D转换器将测得的模拟量转换为数字量,再转化为与之对应的温度值。与设定的温度相比较后,以偏差及其变化量为输入、加热量为输出,就可达到温度自调的目的,并加以显示。其主控电路原理图如下:
方案论证
基于上述原理该系统具有对温度的精确控制、能显示当前时间热水器的实际温度以及自动检测热水器是否处于正常工作状态,并具有调温、恒温、防超高温等多项自检