针对传统船舶反渗透海水淡化系统出现的能耗高、体积大、噪声高等缺点,研发设计一种新型船舶反渗透海水淡化工艺。新型工艺采用1台中压供料泵与三合一循环泵串联升压的膜进水流程,三合一循环泵可实现高压泵、能量回收和增压泵三重功能。该泵可有效回收利用反渗透过程中的余压能量,使系统能耗大幅度减低;设备采用小型化和集成化设计,可适应船舶狭小的空间要求;整个系统泵机较少,且循环泵为容积泵,其工作往复频率低,故系统噪声相对传统海水淡化系统的噪声较低。该工艺可充分满足船舶海水淡化设备小型化、节能化的要求。
A new type of reverse osmosis seawater desalination technology is developed in order to solve problems of high energy consumption, large volume and high noise, etc. in traditional marine reverse osmosis desalination system. The new process uses a medium pressure feed pump and a three-in-one circulating pump in series. The three-in-one pump serves as high-pressure circulating pump, energy recovery device and booster pump. The pump can effectively recover the residual pressure energy in the process of reverse osmosis, so that the system energy consumption greatly reduced; the small confogration and integrated design of the device can adapt to the narrow space of the ship; using positive displacement pump, the reciprocating frequency of the simplified system is low which means lower noise of the new process than the traditional one. The process can fully meet the requirements of miniaturization and energy saving of marine seawater desalination equipment.
2018,(): 119-123 收稿日期:2017-03-23
DOI:10.3404/j.issn.1672-7649.2018.02.023
分类号:TH321
基金项目:河北省高等学校科学技术研究重点资助项目(ZD2015090);石家庄市科学技术研究与发展计划资助项目(161080203A);河北省留学人员科技活动择优资助项目(CL201607);2017年河北省重点研发计划资助项目(17394505D)
作者简介:纪运广(1972-),男,博士,讲师,主要从事液体余压能量回收、流体机械设计等
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