新型保温便捷式防水通风口的设计与使用

针对储粮仓库机械通风系统中的通风口存在通风阻力大、密封不严、渗水、易结露及连接费时等缺点,研究设计并制作了新型通风口,解决了上述问题。     

反刍动物舔砖加工系统的控制研究与设计

论述了反刍动物舔砖加工控制系统的设计思路,可编程控制器(PLC)及微机在控制系统中的应用,结合加工工艺流程与工作原理,提出了用PLC进行控制的设计思路及控制设计方法。     

轨道式粮面平整器的设计与制作试验

设计、制作轨道式粮面平整器,并进行粮面平整试验.该平整器解决了大粮面平整的难题,实现了使整体粮面平整如镜和节省工时的设计初衷.     

5HHZ-12 型批次式谷物烘干机的关键技术研究与设计

我国稻谷的产量高、种植面积大,能够最大程度解决国家的粮食安全问题,但稻谷的水分高且干燥过程中容易出现“爆腰”,使得稻谷安全存储成为制约粮食产业发展的瓶颈问题。在原有 5H 型烘干机的基础上改进设计了一种 5HHZ-12 型批次式谷物烘干机,能够基本解决谷物干燥存在的速率慢和均匀性差等问题,具有较高的应用价值。     

Design of Excitation Control System of A.C.Excited Generator

Dual-passage excitation control method based on dynamical synchronous reference frame is analysed according to the base theory of A.C. excited generator. Using the dual-CPU project basing on the high speed DSP, excitation control system of A.C. excited generator is realized. Considering the characteristic of this control system, taking full advantage of the high speed and the convenient peripherals of DSP, the hardware and software of the control system are designed appropriately. Dual-passage excitation control system is realized using the dual-CPU method. Dual-passage excitation control strategy based on dynamic synchronous reference frame is proved with the experiment.     

Hidden Dangers on Linkage Control of Electrical Devices and Design Installation and Debugging of Power Supply and Distribution Underground Space

Linkage control of fire-fighting electrical equipment effectively and reasonable design, installation and debugging of power supply and distribution are increasingly important to ensure the safety of underground space. As the linkage control systems associated with the fire control electrical equipment are very complicated, and the distribution of installation and debugging are very professional, there are many hidden troubles of safety in the whole life cycle process. On the basis of analysis of characteristics of underground space of fire, underground fire-fighting electrical equipment and the requirement of power supply system are expounded, hidden dangers on linkage control of electrical devices and design installation and debugging of power supply and distribution underground space are analyzed, and some suggestions and countermeasures are provided for relevant departments as decision-making reference.     

The Design and Implementation of An Expert Control System

This paper proposes an expert control system for industrial processes on-line control and supervision by combining expert system techniques with computer process control techniques, introduces the fundamental design principles,basic structure and engineering implementation of this real time expert control system and gives the field operation results concerning the processing of a sodium chromate rotary kiln controlled by this expert control system as an application example.     

基于PLC的锅炉补水泵控制系统研究

设计了一套水暖锅炉自动调温系统应用于农业生产,主要部件包括主机、辅机、控制系统和水暖管道装置等。基于PLC的锅炉补水泵控制系统能够对整个锅炉的运行状况进行监测、报警、控制,保证锅炉正常、可靠地运行。该设计克服了以往养殖水暖锅炉中存在的缺陷,可以保证锅炉补水泵控制系统稳定可靠工作。     

土地整治田间污染防控工程体系初探

为了降低农田非点源污染的程度与区域生态环境风险,提高区域农业生态环境安全程度。在对现有土地整理工程技术手段进行综合集成的基础上,结合农业非点源污染防控相关理论,设计了生态型田间污染防控的工程构件,构建区域农田污染整治工程规划方案,并将其应用到以江苏省环太湖地区的典型土地整治项目中。结果表明：基于田间污染防控设计、承泄区污染防控设计以及渠首污染防控设计的土地整治田间污染防控工程体系是现有土地整治工程技术的有益补充,对农田非点源污染具有一定的防控作用,提高了区域农地可持续利用程度。     

The Cost Control of Government Investment Project in the Design Stage

The design stage is the key part in the control of construction cost,but,there is always short of strength of cost control in design phase. In this paper,the characteristics of construction design stage are discussed, and five methods for construction cost control in design phase are put forward, which inspire us further to strengthen control and management in design phase as a governmental policy and ensure feasible technique and reasonable economy designs.     

2BP-6精少量谷子播种机的设计与试验

在山西省农业机械化科学研究院研发的2B-8型谷物播种机技术的基础上,通过对关键部件改进和增设部分装置,并结合现阶段谷子种植的农艺要求,成功研发了2BP-6精少量谷子播种机,配套动力8.82~13.23 kW拖拉机,一次能完成开沟、施肥、播种、覆土、镇压等工序的新型精少量谷子播种机,通过实践试验和生产表明,各项指标均达到设计要求。     

南美白对虾池塘养殖水质智能控制系统设计与开发

南美白对虾池塘养殖对于水体质量有着较为严苛的要求,残饵及生物排泄物的增多会大量消耗水体溶解氧,进而打破水体动态平衡,导致NH3-N、NO2-N等毒害成分升高,引起南美白对虾病害甚至导致死亡,造成养殖户经济损失并且阻碍了南美白对虾养殖产业的健康发展。针对上述问题,笔者研究并开发一种能够实时监测养殖池塘水质,并能根据南美白对虾生长习性智能控制增氧机、水泵等养殖设备的南美白对虾池塘养殖水质智能控制系统。系统具有控制智能、运行可靠、集成度高等特点,在养殖生产试验中取得了良好效果,保证了南美白对虾养殖过程的安全,有效降低了南美白对虾池塘养殖风险。