基于可拓学的船用海水淡化装置的喷射器设计  

DESIGN OF INJECTOR USED IN THE MARINE DESALINATION EQUIPMENT BASED ON EXTENICS

作　　者：江帆[1] 凌程祥 

机构地区：[1]广州大学机械与电气工程学院,广东广州510006

出　　处：《水处理技术》2015年第12期122-125,132,共5页Technology of Water Treatment

基　　金：广东省科技计划(2014A070711023);广州市科技计划(2013KP042);广东省创新方法与决策管理系统重点实验室开放基金(2011A060901001-19D);广州市教育科学规划课题(1201430307)

摘　　要：喷射器是船用海水淡化装置的关键部件,需要实现空气与海水共引。采用可拓学菱形思维方法对喷射器方案进行设计,根据"一征多值"进行方案的发散,建立了4种供选择的喷射器方案,利用优度评价对方案进行优选,得到了两级并列液气共引的喷射器结构方案。对喷射器的关键结构尺寸进行了计算分析,当工作流体流速为2 m/s时,喷射器入口直径为40 mm,浓海水引管的管径为32 mm,蒸汽引管的管径为27 mm。最后进行了实验验证,实验结果显示液气的引射压力满足工作要求。Injector is a key part of the marine desalination equipment used in the ships, which inhales air and seawater simultaneously. The rhombus thinking model ofextenics was used to design the injector scheme, where intrinsic value was applied to help find the design scheme, and four schemes were established. The superiority evaluation method was then applied to choose the optimal scheme. The injector structure that could inhale air and seawater with two stage nozzles was obtained. Their key structure sizes were computed. When the flow velocity of work fluid was 2 m/s, the input diameter of injector was 40 mm, the diameter of inhale seawater pipe was 32 mm, and the diameter of inhale vapor pipe was 27 mm. Finally the validate test was conducted, the results showed the inject pressure matched with the function requirement.

关 键 词：喷射器 液气共引 可拓学 菱形思维方法 优度评价 

分 类 号：P747[天文地球—海洋科学]