康同滨
[摘 要]随着社会技术的不断进步,人民生活水平逐步提高,冷库、冷链行业发展迅速,各种生鲜、新鲜水果等的贸易量越来越多,这也给制冷技术带来了更多的考验,提出了更高的品质控制要求。文章基于冷库、冷链概念和内涵,结合最新的自动化控制技術,分析总线控制技术+互联网模式在冷库、冷链制冷行业的应用及发展前景。
[关键词]冷库;冷链;现场总线控制技术、互联网
[中图分类号]TB657.1 [文献标志码]A [文章编号]2095–6487(2021)01–00–02
Application of Data Bus and Network Technology in Cold Storage and
Cold Chain Refrigeration Control System
Kang Tong-bin
[Abstract]With the continuous progress of social technology and the gradual improvement of people's living standards, in recent decades, the cold storage and cold chain industries have developed rapidly. At the same time, the global trade has developed rapidly, and the trade volume of various fresh and fresh fruits is increasing, which also brings more tests to the refrigeration technology and puts forward higher quality control requirements. Among them, the rapid development of Internet, digital and big data technology has provided strong technological assistance for the vigorous development of various fields in China, and also ushered in new development opportunities for the refrigeration industry. Based on the concept and connotation of cold storage and cold chain, combined with the latest automation control technology, this paper analyzes the application and development prospect of bus control technology + Internet mode in cold storage and cold chain refrigeration industry.
[Keywords]cold storage; cold chain; fieldbus control technology, Internet
1 应用背景及意义
制冷设备为现代社会人们的正常饮食健康,提供了重要的科技保障。我国冷链物流发展时机已经成熟,冷链物流不仅能够满足人们对新鲜食品的需求,还能够使食物在运输途中尽量减少损失和浪费,保证营运效益。虽然说冷链物流拥有众多的优势,但是仍存在一些问题,比如说公众认知度低、制冷系统及设备先进程度层次不一等等,在提供生活品质保障的同时,存在不同程度的能耗浪费、环境破坏等。随着社会的进步、贸易的发展,制冷系统的发展也必须符合新时代愈加严格的相关法规要求。
一些效果较好的制冷剂在《蒙特利尔公约》后不再被使用,如R11、R12、R15,R502这些制冷剂,虽然效果好但会给大气层造成不可挽回的伤害,R22、R123等制冷剂作为过渡性的替代产品,在不久的将来也被限定和淘汰。
氨气和二氧化碳是未来的发展趋势,由于安全性的原因,国内对氨得的使用有了一定的局限性,所以新建纯氨的大制冷系统越来越少,近些年来被氨/二氧化碳复叠式和二氧化碳载冷的制冷系统取代,甚至跨临界二氧化碳制冷系统也有了不少应用,也必将成为近阶段的发展方向。……