CX-1型甘露醇结晶溶解装置的设计

甘露醇为渗透性利尿药,可迅速提高血浆渗透压,具有减轻脑水肿、降低颅内压的作用,是医院常用的脱水药,常用于静脉快速滴注抢救脑水肿患者。甘露醇注射液为过饱和溶液,该制剂在室温20～30℃储存相对稳定,室温﹤15℃时即有10%析出结晶,冬季结晶率更高。输入不完全溶解的甘露醇溶液会对患者肾功能造成损害。因此,使用前必须先将甘露醇完全溶解后再使用,给临床治疗造成很大麻烦。笔者经过调查发现,医院甘露醇的溶晶形式以各种水浴加热为主，但成本较高。因此，笔者研制了CX-1型甘露醇结晶溶解装置，使用效果良好。

CPJ-1600偏光片除泡机的研制

本文介绍了CPJ-1600型偏光片除泡机的主要技术指标、机械结构、控制系统,重点介绍了加热及强制热循环系统用来保证炉内工作区温度及其均匀性。

硫铵浓缩换热工艺的探讨

阐述了年产26万吨丙烯腈生产中硫铵浓缩单元一效与二效换热工艺的差别,特别是对二者的蒸汽和循环冷却水消耗量做了比较具体的对比研究,为工业装置工艺比选提供了能耗依据。对强制热循环与热虹吸的换热方式进行了比较分析,提出了采用热虹吸换热的构想以及尚需解决的一些工程问题。解释了在循环液蒸发器上部出口与硫铵液分离罐之间添加一块降压孔板对工艺节能的贡献。

Program for Solar Water Heating Systems Based on the F-Chart Method

This paper aims at presenting an application developed in Java for optimizing the design of centralized solar water heating systems with forced circulation, based on the f-chart method. The program uses data from the Brazilian Solar Atlas, performance data of flat plate collectors and thermal reservoirs from the standardized tests run within the Brazilian Labeling Program, and values of water consumption of appliances defined by the ABNT. The program finds the inclination of the collector that maximizes the annual solar fraction, or for the winter, and enables the use of arrays in series and parallel collectors. From the investment costs and O ＆ M （operations and maintenance） of solar heating systems, the program carries out economical analysis using classical parameters as net present value, discounted payback and internal rate of return. The program was validated through examples from the book of Duffle ＆ Beckman and also by comparison with the results from a project developed at UFRGS, having obtained good agreement.