煤气泄漏报警器系统设计(课程设计) 正文 (1)

中州大学课程设计

中州大学工程技术学院

毕业论文

（电工教研室）

题目：家庭煤气泄漏报警器设计

专业班级：09电气2班

设计人：……….

学号：……………

指导教师：………

设计时间：2012年4月10日

目录

内容摘要 (4)

第一章概述 (6)

1.1 课题研究背景、目的 (6)

1.2 方案构想 (7)

第二章总体方案设计 (8)

2.1方案一 (8)

2.2 方案二 (9)

2.3 方案三 (10)

2.4方案比较 (11)

2.5 方案选择 (12)

第三章单元电路设计 (13)

3.1电源电路 (13)

3.2气敏探测电路 (13)

3.3电子开关电路 (14)

3.4报警电路 (15)

3.5开放式空气负离子发生器 (16)

3.6单元模块的联接 (17)

第四章系统的调试 (18)

4.1 电源电路的调试 (19)

4.2 气敏探测电路的调试 (19)

4.3 电子开关电路的调试 (19)

4.4 报警电路的调试 (20)

4.5 开放式空气负离子发生器的调试 (20)

4.6 煤气泄漏报警电路的整体调试 (20)

第五章系统的功能及参数 (21)

5.1 系统的功能 (21)

5.2 系统的参数 (22)

第六章软件介绍 (22)

第七章致谢 (24)

参考文献 (25)

9 附录煤气泄漏报警电路设计电路图 (26)

家庭煤气泄漏报警器设计

内容摘要

近年来，全国燃气行业发展迅猛，液化气、天然气、煤制气等城市燃气作为清洁能源已在工商业和城镇居民用户中得到广泛应用，特别是随着“西气东输”工程的快速进展，燃气行业发展潜力巨大。城市燃气的普及与应用无疑对改善城市的环境质量和提高居民的生活质量发挥了巨大的作用。但是随着燃气的广泛应用，由于燃气泄漏所引发的爆炸、中毒和火灾事故也时有发生，这在某种程度上增加了城市的不安全和不稳定因素。为了使燃气更好地造福于民，造福于社会，减少并杜绝各种因燃气泄漏而引发的爆炸及火灾事故，各燃气使用单位及居民用户选择一种适合的煤气报警器实为必要之举。

本次课程设计的题目是煤气泄漏报警电路，煤气泄漏报警电路是用于当煤气泄漏达到一定危害浓度时就立即发出报警,它在实际生活中有着十分广泛的应用。本次设计中应用了多种数字电路,如电源电路、气敏探测电路、电子开关电路、报警电路等。我相信通过本次课程设计,我将进一步加深对各数字单元电路的理解,同时也对电子设计的方法有一定的了解,为今后的学习和工作打下一定的基础。

关键词：报警电路气敏探测

1Abstract

In recent years, rapid development of the national gas industry, liquefied petroleum gas, natural gas, coal gas and other city gas as a clean energy has been in the business and urban residential customers has been widely used, especially with the " west to East Gas Transmission" project of the rapid progress, development of gas industry has great potential. Popularization and application of city gas will no doubt improve the city 's environmental quality and improve the quality of life of the residents has played the huge role. But with the extensive use of gas, due to gas leak caused an explosion, poisoning and fire accidents have also occurred, in part to increase the city 's insecurity and instability. In order to better benefit of gas to the people, the benefit of society, to reduce and eradicate due to gas leak caused the explosion and fire accidents, the use of the gas unit and residential customers to choose a suitable gas alarm is indeed a necessity.

The course design is the subject of a gas leak alarm circuit, a gas leak alarm circuit which is used when the gas leakage concentration reaches a certain hazards will immediately send out alarm in real life, it has a very wide range of applications. This design applied to a variety of digital circuit, such as a power circuit, a gas-sensitive detection circuit, an electronic switching circuit, alarm circuit. I believe that through the curriculum design, I will further deepen the understanding of digital circuit, but also on the electronic design method has a certain understanding, learning for the future and lay a foundation.

Key words: gas detection alarm circuit