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    • 4. 发明授权
    • Multi-stage flash distillation plant
    • 多级闪蒸厂
    • US3966562A
    • 1976-06-29
    • US493480
    • 1974-07-31
    • Toshimi MukushiKenkichi IzumiSankichi TakahashiYoshiaki OkazimaToshio SawaMithumasa Komai
    • Toshimi MukushiKenkichi IzumiSankichi TakahashiYoshiaki OkazimaToshio SawaMithumasa Komai
    • B01D3/06C02F1/04C02F1/06B01D3/00
    • C02F1/06B01D3/065C02F1/042Y02P70/34Y10S159/38
    • A multi-stage distillation plant consisting essentially of a multi-flash evaporator provided with a multi-flash chamber which is divided into a heat recovery section and a heat rejection section. In this multi-stage flash distillation plant, the aforesaid flash evaporator is provided with a deaerator for deaerating cold sea water, a thickener for separating brine containing a relatively great amount of seeds, from concentrated brine which has been extracted from a front chamber of the final stage flash chamber, and a seed mixing tank for obtaining a seed-mixed brine, whereby part of the sea water which has passed through the deaerator is supplied as a feed sea water to the rear chamber of the final stage flash chamber, while the brine containing a relatively great amount of seed and extracted from the thickener is joined to the seed-mixed brine fed from the seed mixing tank. Thus, the confluent brine thus joined together is discharged for deaeration into the final stage flash chamber from a distributor provided in the rear chamber thereof. According to another aspect of the invention, the aforesaid deaerator is omitted and the feed sea water which has not been subjected to deaeration is joined to the aforesaid confluent brine and is discharged for deaeration from the distributor.
    • 一种多级蒸馏设备,主要由多闪蒸发器组成,多蒸发蒸发器设置有多闪蒸室,其分为热回收段和排热段。 在这种多级闪蒸装置中,上述闪蒸器具有用于对冷海水进行脱气的除气器,用于从含有相对大量种子的盐水中分离的浓缩物,该浓缩盐水从已从 最后阶段闪蒸室和用于获得种子混合盐水的种子混合罐,由此将通过除气器的一部分海水作为进料海水供应到最终级闪蒸室的后室,而 含有相对大量种子并从增稠剂中提取的盐水与从种子混合罐供给的种子混合盐水相连。 因此,这样连接在一起的汇合盐水从设置在其后室中的分配器排出进入最后阶段闪蒸室。 根据本发明的另一方面,省略了上述脱气器,并且没有进行脱气的进料海水与上述汇合盐水接合,并从分配器排出以脱气。
    • 8. 发明授权
    • Method and apparatus for concentration aqueous solution and method and
apparatus for recovering temperature
    • 浓缩水溶液的方法和装置以及回收温度的方法和装置
    • US4746437A
    • 1988-05-24
    • US704577
    • 1985-02-22
    • Yasuo KosekiSankichi TakahashiKatsuya EbaraOsamu KurodaHideaki Kurokawa
    • Yasuo KosekiSankichi TakahashiKatsuya EbaraOsamu KurodaHideaki Kurokawa
    • B01D61/36F25B15/14B01D13/00
    • B01D61/362B01D71/36F25B15/14B01D2313/246Y10S159/27Y10S203/18
    • The method and apparatus for concentration aqueous solution in accordance with the present invention is characterized in that a hydrophobic porous membrane through which vapor can permeate, but not liquid, is brought into contact with an aqueous solution containing a solute at a concentration of at least 30%, and the water contained in the aqueous solution at the interface with the membrane is evaporated and permeates through the membrane. A method and an apparatus of recovering temperature of an aqueous solution comprising an aqueous solution concentration step in which the aqueous solution contact with the membrane, the water being evaporated; and a dilution step in which the resultant concentrated solution is diluted; wherein a temperature is obtained higher or lower than that of said aqueous solution. The method and apparatus for concentrating an aqueous solution can be used as a means or apparatus for concentrating an aqueous solution in a dilution type of heat pump, an absorption type of heat pump or an absorption type of refrigerator. Aqueous solutions for high-temperature outputs of dilution systems include aqueous solutions of sulfuric acid, nitric acid, etc., and for low-temperature outputs include aqueous solutions of potassium nitrate, sodium nitrate, etc. and further for absorption systems include aqueous solutions of NaClO.sub.3, lithium bromide, etc.
    • 根据本发明的浓缩水溶液的方法和装置的特征在于,蒸气可以渗透而不是液体的疏水性多孔膜与含有浓度至少为30的溶质的水溶液接触 %,并且在与膜的界面处的水溶液中包含的水蒸发并渗透通过膜。 回收水溶液温度的方法和装置,其包括水溶液浓缩步骤,其中水溶液与膜接触,水被蒸发; 和稀释所得浓缩溶液的稀释步骤; 其中获得比所述水溶液更高或更低的温度。 用于浓缩水溶液的方法和装置可以用作浓缩稀释型热泵,吸收型热泵或吸收式冰箱的水溶液的手段或装置。 用于稀释系统的高温输出的水溶液包括硫酸,硝酸等的水溶液,并且对于低温输出,包括硝酸钾,硝酸钠等的水溶液,并且进一步用于吸收体系包括水溶液 NaClO3,溴化锂等