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    • 2. 发明申请
    • EVAPORATOR AND METHOD OF OPERATION THEREOF
    • 蒸发器及其操作方法
    • WO2007128950A3
    • 2008-01-03
    • PCT/GB2007000886
    • 2007-03-14
    • GENEVAC LTDLEE-SMITH DONALD ROGER
    • LEE-SMITH DONALD ROGER
    • B01D1/26B01D3/08B01D3/10B01D3/30B04B5/02B04B5/04
    • B04B5/0414B01D1/0029B01D1/0052B01D1/0082B01D1/228B01D3/08B01D5/006B04B15/02B04B15/08
    • An evaporator is provided for evaporation of liquid from a solution or liquid mixtures, together with methods of operation of the evaporator. The evaporator comprises a chamber (1); a liquid reservoir (3) for holding a heat transfer liquid exposed to the interior of the chamber; a support (6) for supporting a container (8) in the chamber, such that the liquid sample in the container is exposed to a fluid path (15) for connection to a condenser (16), the fluid path being separated from the chamber interior, and at least a portion of the container is closely thermally coupled to the chamber interior; and means (4) for heating the heat transfer liquid in the reservoir to create heat transfer liquid vapour, which in use condenses and releases latent heat of vaporisation to the liquid sample in the container. As the temperature of the sample is dependent on the saturated vapour temperature of the liquid in the reservoir, the temperature of the samples is reliably limited, thereby avoiding overheating. High levels of heat energy may be delivered controllably to the samples, enabling a high evaporation rate to be achieved at relatively low temperature.
    • 提供蒸发器用于从溶液或液体混合物中蒸发液体,以及蒸发器的操作方法。 蒸发器包括室(1); 用于保持暴露于所述室内部的传热液体的液体贮存器(3) 用于支撑所述腔室中的容器(8)的支撑件(6),使得所述容器中的液体样品暴露于用于连接到冷凝器(16)的流体路径(15),所述流体路径与所述腔室分离 内部,并且容器的至少一部分与腔室内部紧密地热耦合; 以及用于加热储存器中的传热液体以产生传热液体蒸气的装置(4),其在使用中冷凝并将潜在的蒸发热量释放到容器中的液体样品。 由于样品的温度取决于储存器中液体的饱和蒸汽温度,因此可靠地限制样品的温度,从而避免过热。 高水平的热能可以可控地传递给样品,使得能够在相对低的温度下实现高蒸发速率。
    • 4. 发明申请
    • PRESSURE CONTROL IN CENTRIFUGAL EVAPORATORS
    • 离心蒸发器压力控制
    • WO2004040214A1
    • 2004-05-13
    • PCT/GB2003/004681
    • 2003-10-29
    • GENEVAC LTDLEE-SMITH, Roger
    • LEE-SMITH, Roger
    • F26B5/04
    • F26B5/04
    • A method of controlling the pressure within a chamber (12) of a drying apparatus (10) from which air and vapour is removed by a pump (30), which is operated continuously during the drying process. If both of a vent valve (18) and a pressure control valve (32) is opened, air at atmospheric pressure is drawn by the pump (30) directly from the pressure control valve (32), and via the chamber (12) and a non-return valve (26) from the vent valve (18). When the pressure in the chamber (12) is to be reduced both vent and pressure control valves (18, 32) are closed to allow the pump (30) to remove air, gas and vapour from the chamber (12) via the non-return valve.(26). After a required chamber pressure has been reached, the pressure control valve (32) is opened while the vent valve (18) remains closed
    • 一种控制干燥设备(10)的腔室(12)内的压力的方法,通过在干燥过程中连续操作的泵(30)将空气和蒸气从该干燥设备(10)中除去。 如果打开排气阀(18)和压力控制阀(32),则直接从压力控制阀(32)通过泵(30)抽吸大气压的空气,经由室(12)和 来自排放阀(18)的止回阀(26)。 当要减小腔室(12)中的压力时,排气和压力控制阀(18,32)都被关闭,以允许泵(30)经由非空气阀从腔室(12)中除去空气,气体和蒸汽, 回流阀(26)。 在达到所需的室压力之后,压力控制阀(32)在通气阀(18)保持关闭的同时打开
    • 5. 发明申请
    • IMPROVEMENTS IN AND RELATING TO GLASS CONDENSERS
    • 玻璃冷凝器的改进和相关
    • WO2004039472A1
    • 2004-05-13
    • PCT/GB2003/004666
    • 2003-10-29
    • GENEVAC LTDLEE-SMITH, RogerSHERWEN, MichaelGUTHRIE, DuncanBROOKS, TrevorSMITH, Richard
    • LEE-SMITH, RogerSHERWEN, MichaelGUTHRIE, DuncanBROOKS, TrevorSMITH, Richard
    • B01D5/00
    • B01D5/009B01D5/0096B01D7/02
    • Methods of preventing damage to a glass vessel forming part of or comprising a condenser, in which the vessel is chilled prior to and during a condensing step and in which in use solid condensed solvent collects on the inside of the vessel and is allowed to defrost and melt after the condensing step, and the liquid is drained from the glass vessel before the latter is chilled again. In one method, during the defrosting and drainage step the temperature of the vessel is maintained above the freezing temperature of the condensate to prevent the liquid re-freezing before it has drained from the vessel. Apparatus for performing the method includes a temperature sensitive control system which prevents the temperature of the glass vessel from dropping sufficiently to allow the liquid to re-freeze before all the liquid has drained from the vessel. In another method any increase in volume due to unwanted freezing is accommodated by a variable volume device. This may comprise a variable volume reservoir, typically a resiliently expansible chamber, into which liquid formed by any defrosting of the frozen solvent at an intermediate point in, or at the end of, an evaporation process, and collected in the glass condensing vessel, can expand if upper layers of the liquid in the vessel freeze over and thereby trap the remaining liquid therebelow. Alternatively a resiliently collapsible closed capsule is provided within the glass condensing vessel, in a region in which liquid will collect if the frozen condensate defrosts, and which in practice will be the last of the region to freeze, and wherein as the pressure in liquid below any upper freezing layer increases, the capsule will collapse (implode) under any increasing liquid pressure so as to decrease its volume and thereby increase the volume available to the liquid trapped below the freezing layer.
    • 防止形成冷凝器的一部分或包括冷凝器的玻璃容器的损坏的方法,其中容器在冷凝步骤之前和期间被冷冻,并且其中使用中的固体冷凝溶剂聚集在容器的内部并被允许除霜 在冷凝步骤后熔化,并且液体在玻璃容器再次冷却之前被排出。 在一种方法中,在除霜和排水步骤期间,容器的温度保持在冷凝物的冷冻温度以上,以防止液体在从容器排出之前再次冷冻。 用于执行该方法的装置包括温度敏感控制系统,其防止玻璃容器的温度充分滴落,以在所有液体从容器排出之前使液体重新冷冻。 在另一种方法中,由于不想要的冷冻而导致的体积增加由可变体积装置来适应。 这可以包括可变容积的储存器,通常是弹性可膨胀的室,通过在蒸发过程中或在蒸发过程的中间点对冷冻溶剂进行任何除霜形成的液体,并且收集在玻璃冷凝容器中, 如果容器中的液体的上层冻结,从而捕获其中的剩余液体,则膨胀。 或者,在玻璃冷凝容器内设置弹性可收缩的封闭胶囊,如果冻结的冷凝物除霜,液体将在其中收集,并且实际上将是最后一个冻结区域,并且其中作为下面液体中的压力 任何上部冷冻层增加时,胶囊将在任何增加的液体压力下崩溃(内爆),从而减小其体积,从而增加被捕获在冷冻层下面的液体的体积。
    • 7. 发明申请
    • IMPROVEMENTS RELATING TO THE USE OF FLASKS IN CENTRIFUGAL EVAPORATORS
    • 关于在离心蒸发器中使用弹簧的改进
    • WO2004039471A1
    • 2004-05-13
    • PCT/GB2003/004673
    • 2003-10-29
    • GENEVAC LTDSMITH, RichardLEE-SMITH, RogerGUTHRIE, DuncanPOOLE, John
    • SMITH, RichardLEE-SMITH, RogerGUTHRIE, DuncanPOOLE, John
    • B01D1/22
    • B04B5/0421B01D3/085B01L3/08B01L9/00
    • A flask holder is described adapted to receive and support one or more flasks in the chamber of a centrifugal evaporator. The chamber interior is heated by infra red radiation, and the holder comprises a cylindrical sleeve terminating in a closed hemispherical cavity having a radius of curvature at least equal to that of the flask. The wall of the sleeve and the cavity is solid and of thermally conductive material and protects the contents of the flask from UV light. It prevents localised overheating by incident infra-red radiation, and an annular support surface is formed in the cavity which restricts contact between the flask and the cavity to a ring of contact having a diameter in the range 15 % to 80 %, typically 40 % of the diameter of the flask. This provides a region into which any deviation from the otherwise spherical wall of the flask such as a slight convex bulge will be accommodated without making contact with the cavity. The body is formed from aluminium and includes a movable apertured support member through which the neck of a flask will extend, to prevent the flask from tilting, and ensure that it sits square in the cavity. The support member is either wholly removable, hinged or preferably slidable to be raised clear of the neck. Where slidable it is carried by rods which are slidable in, but held captive in the body. A disc or ring of compliant and thermally conductive material such as reinforced alumina-filled silicon gel cushions the flask in the cavity to reduce stress on the flask wall. The cavity and cylindrical sleeve form a container so that should a flask fracture in use solvent and glass will be contained therewithin to reduce risk of damage and/or contamination such as to the interior of a centrifugal evaporator chamber in which the holder is rotatable.
    • 描述了适于在离心式蒸发器的腔室中容纳和支撑一个或多个烧瓶的烧瓶保持器。 腔室内部由红外辐射加热,并且保持器包括终止于封闭半球形空腔中的圆柱形套筒,其具有至少等于烧瓶的曲率半径。 套管和腔体的壁是固体和导热材料,并保护烧瓶的内容物免受紫外线的影响。 它防止入射红外辐射的局部过热,并且在空腔中形成环形支撑表面,该表面将烧瓶和空腔之间的接触限制为直径在15%至80%,通常为40% 的烧瓶直径。 这提供了一个区域,在其中任何偏离烧瓶的另外的球形壁,例如微小的凸起凸起将被容纳而不与空腔接触。 主体由铝形成并且包括可移动的有孔支撑构件,烧瓶的颈部将通过该支撑构件延伸,以防止烧瓶倾斜,并确保其在空腔中正方形。 支撑构件可以是完全可移动的,铰接的或优选地可滑动的,以使其远离颈部。 在可滑动的情况下,它可以被可滑动,但被保持在体内的杆支撑。 符合导热材料的盘或环,例如增强氧化铝填充的硅胶,将烧瓶放在空腔中,以减小烧瓶壁上的压力。 空腔和圆柱形套筒形成一个容器,以便在使用溶剂和玻璃中的烧瓶破裂时,将被包含在其中,以便减少损坏和/或污染的风险,例如其中保持器可旋转的离心蒸发器室的内部。
    • 8. 发明申请
    • TEMPERATURE SENSING IN CENTRIFUGAL EVAPORATORS
    • 离心蒸发器温度感测
    • WO2004039470A2
    • 2004-05-13
    • PCT/GB2003/004683
    • 2003-10-29
    • GENEVAC LTDLEE-SMITH, RogerSMITH, RichardGUTHRIE, Duncan
    • LEE-SMITH, RogerSMITH, RichardGUTHRIE, Duncan
    • B01D1/00
    • G01J5/08B01D1/0029B01D1/0082B01D3/08G01J5/0022G01J5/041G01J5/042G01J5/089G01J2005/068Y10S159/06
    • A centrifugal evaporator is described comprising a chamber in which sample containers are carried and rotated by a rotor and are pivotally mounted so as to swing up into a horizontal attitude as the rotor rotates. The evaporator includes an infra red source to direct infra red radiation towards the rotor and the sample containers carried thereon, to heat at least the latter and any sample material therein. A non-contact temperature sensing infra red pyrometer having a sensor with a defined field of view is mounted in the chamber, such that while the rotor as such is substantially out of its field of view, each sample container at least partly occupies the pyrometer field of view for a part of each rotation of the rotor. The positions of the infrared source and the pyrometer components are selected so that the radiation from the infra red source does not impinge on the pyrometer sensor. In particular the infra red source radiation predominantly impinges on the sample containers rather than the rotor. The position of the pyrometer sensor is chosen so that the rotor does not protrude into the pyrometer field of view. The direction of rotation of the rotor is such that any debris thrown from the rotor is directed away from the sensor. Temperature sensing means measures the temperature of the chamber, the pyrometer sensor body and the body of the chamber temperature sensor. Electrical signal processing means receives signals from the IR pyrometer sensor and the temperature sensing means to adjust the temperature values from the IR pyrometer sensor to take account of the chamber temperature, and sensor body temperature.
    • 描述了一种离心式蒸发器,其包括室,其中样品容器由转子承载和旋转,并且当转子旋转时可枢转地安装以便摆动成水平姿态。 蒸发器包括红外源,用于将红外辐射引向转子和载体上的样品容器,以至少加热后者和其中的任何样品材料。 具有具有限定视野的传感器的非接触式温度感测红外高温计安装在腔室中,使得当转子基本上不在其视场内时,每个样品容器至少部分地占据高温计场 的转子的每个旋转的一部分的视图。 选择红外源和高温计组件的位置,使得来自红外源的辐射不会撞击到高温计传感器。 特别地,红外源辐射主要影响样品容器而不是转子。 选择高温计传感器的位置,使得转子不会伸入高温计视野。 转子的旋转方向是使从转子抛出的任何碎屑远离传感器。 温度传感装置可测量腔室温度,高温计传感器本体和腔室温度传感器的体积。 电信号处理装置接收来自IR高温计传感器和温度感测装置的信号,以调节来自红外高温计传感器的温度值,以考虑室温度和传感器体温。