10t/d船用板式蒸馏海水淡化装置性能测试与模拟计算  

Performance test and simulated calculation for 10 t / d marine plate distillation seawater desalination device

作　　者：胡钰[1] 魏林瑞[1] 张磊[1] 卢素敏[2] 

机构地区：[1]中海油能源发展股份有限公司北京冷能利用研究所,北京100016 [2]天津工业大学环境与化学工程学院,天津300387

出　　处：《工业用水与废水》2016年第3期78-83,共6页Industrial Water & Wastewater

摘　　要：建立了一套船用板式蒸馏海水淡化装置试验测试平台,对10 t/d淡化装置进行了性能测试,在测试所采用的海水及热水流量下,热水温度由59℃升高至83.77℃,淡水产量由400 L/h提高至550 L/h,进一步提高热水温度,淡水产量提高趋于平缓,操作时热水温度不宜超过85℃;随热水流量的增大,淡水产量呈现先升高后降低趋势;海水入口温度升高造成冷凝器中传热温差降低,真空度降低,产水量下降;海水流量是制约海水淡化装置真空度的关键因素,作为真空喷射泵的驱动水,当海水流量低于一定值时,淡化机真空度急剧下降,几乎不能出水。对板式蒸馏海水淡化装置进行了理论模拟,模拟结果与试验测试数据吻合良好。A test platform for marine plate distillation seawater desalination device was set up, the perfor- mance of 10 t/d desalination device was tested. According to the test results, at the testing flow rate of seawater and hot water, the yield of fresh water was increased from 400 to 550 L/h when increasing the inlet temperature of hot water from 59℃ to 83.77 ℃, and it will be leveled off if the temperature of the hot water is further raised. The operating temperature of hot water should be controlled not above 85 ℃. With the increase of the hot water flow rate, the yield of fresh water increased at first and then decreased. The increase of seawater inlet tempera- ture caused a drop of the heat transfer temperature difference in the condenser and the vacuum degree, led to a decrease of the yield of fresh water. The flow rate of seawater is the key factor restricting the vacuum degree of the seawater desalination device. As the driving water of vacuum jet pump, when the flow rate of seawater is be- low a certain value, the vacuum degree drop sharply, almost no fresh water is generated. A theoretical simulation for plate distillation seawater desalination device was performed, and the simulation result was in good agreement with the experimental test data.

关 键 词：海水淡化 真空蒸馏 真空度 性能测试 淡水产量 

分 类 号：TQ085.47[化学工程]