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日光温室通风系统的设计与实现

2015-10-21刘林等

山东农业科学 2015年5期

刘林等

摘要:针对传统温室通风方式费事费力且存在安全隐患或卷轴因受力不均易折断的问题,设计了一种日光温室通风系统。该系统主要由电机、支架、滚轴、卷绳、卷轴和控制器等组成,通过采用多路“平拉”的通风结构,采用手动、遥控、短信和自动方式控制通风口薄膜的开启范围,实现快速降温和降湿。该系统安全可靠,提高了劳动生产率,具有很高的市场推广价值。

关键词:日光温室;通风;遥控;短信;自动控制

中图分类号:S625.3文献标识号:A文章编号:1001-4942(2015)05-0115-04

Design and Implementation of Intelligent Greenhouse Ventilation System

Liu Lin1, Hou Jialin1,2*,Jiang Bin3

(1.College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, China;

2.Shandong Provincial Key Laboratory of Horticultural Machineries and Equipments, Taian 271018, China;

3.North China Institute of Aerospace Engineering,Langfang 065000,China)

AbstractTroublesome, not security and easy break of rolling shaft due to uneven stress were the main problems present in the ventilation system of traditional greenhouse. For these problems, an intelligent greenhouse ventilation system was designed in this paper. It was composed of motor, bracket, roller, coiled rope reel and controller, etc. Through the manual method, remote control, text messages and automatic ways to control the size of air vent, and by the multiplex rope-pulling structure, rapid cooling and dehumidifying could be achieved in greenhouse. In conclusion, this system was safe and reliable to improve labor productivity, so it had higher value of market popularization.

Key wordsGreenhouse; Ventilation; Remote control; Text message; Automatic control

日光温室在农业发展中意义重大,它使反季节蔬菜成为可能,不仅能大幅提高农作物的成活率,还缩短了农作物的生长周期。通风换气是温室生产管理中的一项重要任务,是将温室内污浊的空气直接排至室外,或经过净化处理,使室内空气环境符合卫生标准。普通的日光温室,通常会在温室上侧和下侧预留两个通风口。

常见开启通风的方式为人工手摇和电机卷膜。使用手摇方式,用户必须爬到温室顶端,既费事费力,又存在安全隐患;使用电机卷膜方式,虽节省了人力,但因电机安装在温室一侧,运行时易使卷轴受力不均而折断。针对上述问题,本试验设计了一种智能型日光温室通风系统,其中多线路“平拉”的通风结构解决了卷轴因受力不均易折断的问题。系统根据预先设定的温湿度阈值启动电机,控制通风口的大小,实现快速通风降温、降湿和换气的目的,不仅可节省人力,提高劳动生产率,还有利于加快传统农业向现代农业的转变。……

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