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公开(公告)号：US5359856A
公开(公告)日：1994-11-01
申请号：US133667
申请日：1993-10-07
CPC分类号： F25J3/064 , F25J3/0615 , F25J3/0635 , F25J2215/60 , F25J2230/60 , F25J2240/40
摘要： The present invention is directed to a process for increasing the methane content of liquid natural gas to provide an essentially pure liquid methane product. In the process, a liquid natural gas feed stream is introduced into a first heat exchanger in indirect heat exchange with a purified methane vapor stream so as to liquify the purified methane vapor stream and to provide a purified liquid methane product. The heat exchange results in increasing the temperature of the liquid natural gas feed stream to a temperature just below the dew point of the liquid natural gas feed stream so as to partially vaporize the liquid natural gas feed stream to provide a mixture of a major amount of substantially pure methane vapor and a minor amount of liquid containing methane and higher hydrocarbons. The mixture of vapor and liquid from the first heat exchanger is transferred to a low pressure separator to provide a liquid bottom fraction and a purified methane top vapor fraction. At least a portion of the liquid bottom fraction and all of the top vapor fraction are transferred to a second heat exchanger in indirect heat exchange with the vapor fraction after the vapor fraction has been processed to change the temperature and pressure of the vapor fraction.
摘要翻译： 本发明涉及一种用于增加液体天然气的甲烷含量以提供基本上纯的液体甲烷产物的方法。 在此过程中，将液体天然气进料流引入第一热交换器中，与纯化的甲烷蒸气流进行间接热交换，以使纯化的甲烷蒸气流液化并提供纯化的液体甲烷产物。 热交换导致液体天然气进料流的温度升至刚好低于液态天然气进料流露点的温度，以便部分蒸发液体天然气进料流，从而提供大量 基本上纯的甲烷蒸气和少量含甲烷和高级烃的液体。 将来自第一热交换器的蒸汽和液体的混合物转移到低压分离器中以提供液体底部馏分和纯化的甲烷顶部蒸气馏分。 在处理蒸气馏分以改变蒸汽馏分的温度和压力之后，至少部分液体塔底馏分和所有顶部蒸汽馏分被转移到第二热交换器中，与蒸气馏分进行间接热交换。
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公开(公告)号：US5513961A
公开(公告)日：1996-05-07
申请号：US287786
申请日：1994-08-09
CPC分类号： F17C9/00 , F17C2203/0391 , F17C2205/0149 , F17C2221/013 , F17C2221/014 , F17C2221/033 , F17C2221/035 , F17C2223/0153 , F17C2223/0161 , F17C2223/033 , F17C2223/035 , F17C2227/0135 , F17C2250/0434 , F17C2250/061 , F17C2260/031 , F17C2265/017
摘要： A method and apparatus are disclosed for improving the available pump net positive suction head in a system for pumping liquid from a storage tank. When the liquid in the system is at or near its boiling point, a pump suction vessel is used to store and cool the liquid. The liquid in the pump suction vessel is kept at a temperature lower than its boiling point by surrounding the vessel with a jacketed space containing liquid from the storage tank. As the liquid in the jacketed space evaporates, the vapor is vented to the storage tank and more liquid is fed into the jacketed space.
摘要翻译： 公开了用于改进用于从储罐泵送液体的系统中的可用的泵净正吸头的方法和装置。 当系统中的液体处于或接近其沸点时，使用泵抽吸容器来储存和冷却液体。 泵抽吸容器中的液体通过围绕容器而保持在低于其沸点的温度，该容器具有容纳储存罐的液体的夹套空间。 随着夹套空间中的液体蒸发，蒸汽排放到储罐，更多的液体被送入夹套空间。
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公开(公告)号：US4457769A
公开(公告)日：1984-07-03
申请号：US313690
申请日：1981-10-22
申请人： Gerald E. Engdahl
发明人： Gerald E. Engdahl
CPC分类号： A23L2/12 , B01D9/04 , C02F1/22 , C02F2103/08
摘要： A freeze concentration apparatus comprising a cold concentrator tank; a conduit to deliver an aqueous liquid mixture feed stream to the cold concentrator tank; a conduit to feed the liquid mixture from the cold concentrator tank to a freeze exchanger for indirect cooling by heat exchange to a cold fluid to form ice crystals in the liquid mixture; a conduit to feed the liquid mixture containing ice crystals from the freeze exchanger to the cold concentrator tank; a conduit to withdraw liquid mixture from the cold concentrator tank concentrated by the freezing of water therefrom; a conduit to withdraw an ice slurry from the cold concentrator tank and deliver it to an ice slurry washer; a spray system to wash the ice slurry in the washer with water; a washer to collect washed ice and an aqueous mixture; a conduit to remove the aqueous mixture from the washer; and an unloader to remove the washed ice from the washer.
摘要翻译： 一种冷冻浓缩装置，包括冷浓缩罐; 用于将水性液体混合物进料流输送到冷浓缩罐的导管; 用于将液体混合物从冷凝器罐供给到冷冻交换器的管道，用于通过与冷流体的热交换进行间接冷却以在液体混合物中形成冰晶; 用于将含有冰晶的液体混合物从冷冻交换器供给到冷凝器槽的导管; 从冷凝水浓缩的冷浓缩罐中抽出液体混合物的管道; 从冷凝器箱抽出冰浆并将其输送到冰浆洗涤器的管道; 喷淋系统用水清洗洗衣机中的冰浆; 用于收集洗涤的冰和含水混合物的洗涤器; 从洗衣机中除去含水混合物的导管; 和一个卸载机，以从洗衣机中清除洗涤的冰。
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4.发明授权System and apparatus for condensing boil-off vapor from a liquified natural gas container 有权用于冷凝来自液化天然气容器的蒸发蒸汽的系统和设备公开(公告)号：US06470706B1
公开(公告)日：2002-10-29
申请号：US09603160
申请日：2000-06-23
申请人： Gerald E. Engdahl
发明人： Gerald E. Engdahl
IPC分类号： F25J100
CPC分类号： F28F3/00 , B01D5/003 , B01D5/0051 , F17C13/02 , F17C2205/0326 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2227/0135 , F17C2227/0178 , F17C2250/032 , F17C2250/034 , F17C2250/0439 , F17C2250/061 , F17C2250/0626 , F17C2265/022 , F17C2265/034
摘要： A system and apparatus for condensing boil-off vapor from a Liquified Natural Gas (LNG) container are disclosed. A system for condensing vapor includes the steps of providing contact area within a condenser vessel, directing vapor to the condenser vessel, providing a condensing fluid and a pump fluid, directing the condensing fluid to the condenser vessel, varying the flow of the condensing fluid to control the pressure in the vessel, contacting the vapor with the condensing fluid to create a condensate, and combining the condensate and the pump fluid. An apparatus for condensing vapor includes a vessel, a liquified gas input to the vessel, control means on the liquified gas input for varying a first liquified gas stream to control the pressure in the vessel, a vapor input to the vessel, means for condensing vapor in the vessel, and means for combining condensed vapor with a second liquified gas stream.
摘要翻译： 公开了一种用于冷凝来自液化天然气（LNG）容器的蒸发蒸汽的系统和装置。 用于冷凝蒸气的系统包括以下步骤：在冷凝器容器内提供接触区域，将蒸气引导到冷凝器容器，提供冷凝流体和泵流体，将冷凝流体引导到冷凝器容器，将冷凝流体的流量改变为 控制容器中的压力，使蒸气与冷凝液接触，产生冷凝物，并将冷凝物和泵液合并。 用于冷凝蒸汽的装置包括容器，输入到容器的液化气体，液化气体输入上的控制装置，用于改变第一液化气流以控制容器中的压力，输入到容器的蒸气，蒸气冷凝装置 在容器中，以及用于将冷凝的蒸气与第二液化气体流合并的装置。
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5.发明授权Apparatus and method of producing an ice slurry at the triple point of a solution 失效在溶液的三重点产生冰浆的装置和方法
公开(公告)号：US5003784A
公开(公告)日：1991-04-02
申请号：US496940
申请日：1990-03-21
申请人： Gerald E. Engdahl , Tushar K. Shah
发明人： Gerald E. Engdahl , Tushar K. Shah
摘要： An ice slurry is produced at the triple point of water in a freezer vessel having vertical freezer tubes on which feed water falls as an outside film and coolant tubes on which cold coolant falls as an outside film, with the liquid coolant and liquid feed distributed to the tubes by a pan over the tubes. The resulting warmer coolant flows to a collecting pan at the vessel bottom and then through an outlet for withdrawing the coolant from the vessel, while the ice slurry is withdrawn through an outlet at the vessel bottom.
摘要翻译： 在具有垂直冷冻管的冷冻器容器中的三重点处产生冰浆，其中进料水作为外部膜落下，冷却剂冷却剂作为外部膜落在冷却剂管上，液体冷却剂和液体进料分配到 管子通过管子上的锅。 所得到的较冷的冷却剂流入容器底部的收集盘，然后通过用于从容器中取出冷却剂的出口，同时冰浆通过容器底部的出口排出。
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公开(公告)号：US5001906A
公开(公告)日：1991-03-26
申请号：US347187
申请日：1989-05-04
申请人： Gerald E. Engdahl , Per E. Duus
发明人： Gerald E. Engdahl , Per E. Duus
摘要： A high pressure heat exchanger has a body with spaced apart parallel plates with side walls joined to the peripheral edge of each plate; a tubular high pressure liquid inlet header external of the body; a tubular high pressure liquid outlet header external of the body; a plurality of separate tubular runs in communication with the inlet and outlet headers; each tubular run including a tubular portion between substantially all adjacent plates of the body; the tubular portions of the same run being interconnected at one end by a tubular liquid return with a tubular portion on the opposite side of a first adjacent body plate and interconnected at the other end by a tubular liquid return with a tubular portion on the opposite side of a second adjacent body plate; the body internal plates having a liquid communication opening which permits a second liquid to flow from the space on one side of a baffle plate to the space on the other side of the baffle plate in a serpentine flow path through the body while in heat exchange contact with a first liquid flowing countercurrent in the tubular runs; the body having an inlet for feeding a second liquid into the body so that it flows countercurrent to the first liquid in the tubes; and the body having an outlet for withdrawing the second liquid from the body.A method of making the heat exchanger is also disclosed as is refrigeration apparatus using the heat exchanger.
摘要翻译： 高压热交换器具有主体，其具有间隔开的平行板，侧壁连接到每个板的周边边缘; 主体外部的管状高压液体入口集管; 主体外部的管状高压液体出口集管; 与入口和出口集管连通的多个单独的管状流道; 每个管状管道包括在主体的基本上相邻的板之间的管状部分; 相同行程的管状部分在一端通过管状液体返回而相互连接，管状部分在第一相邻主体板的相对侧上，并在另一端通过管状液体返回而相互连接，管状部分在相对侧 的第二相邻体板; 所述主体内板具有液体连通开口，其允许第二液体在挡板的一侧上的空间中流过所述挡板的另一侧的空间，在通过所述主体的蛇形流动路径中进行热交换接触 在管状管中具有第一液体流逆流; 所述主体具有用于将第二液体供给到所述主体中使得其与所述管中的所述第一液体逆流流动的入口; 并且所述主体具有用于从所述主体抽出所述第二液体的出口。 还公开了制造热交换器的方法，即使用热交换器的制冷装置。
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7.发明授权Apparatus and method of producing refrigeration as ice at the triple point of water 失效在三重点生产制冷作为冰的装置和方法
公开(公告)号：US4735641A
公开(公告)日：1988-04-05
申请号：US26022
申请日：1987-03-16
申请人： Gerald E. Engdahl
发明人： Gerald E. Engdahl
摘要： Ice is produced by supplying a cold antifreeze solution into a freezer vessel evacuated to operate at the triple point of water; feeding a stream of water into the vessel whereby (A) part of the water flashes into water vapor which extracts its latent heat of vaporization from the water in the freezer and part of the water is cooled and converted to ice crystals in a pool of water therein and (B) the water vapor is condensed by and absorbed into the cold antifreeze solution thereby forming a more dilute antifreeze solution; removing a mixture of ice crystals and water from the vessel; withdrawing dilute antifreeze solution from the vessel and subjecting the solution to a water separating treatment to separate water and form concentrated antifreeze, combining the concentrated antifreeze with antifreeze solution withdrawn from the vessel to form a combined antifreeze stream; cooling the combined antifreeze stream to produce a cold antifreeze stream; and recycling the cold antifreeze stream to the freezer vessel.
摘要翻译： 冰是通过将冷的防冻溶液供应到抽空以在水的三重点处操作的冷冻罐中产生的; 将水流送入容器中，由此（A）一部分水闪烁成水蒸汽，从冷冻器中的水中提取其蒸发潜热，并将一部分水冷却并转化成水池中的冰晶 （B）水蒸汽被冷冻的冷冻溶液冷凝并被吸收，从而形成更稀的防冻溶液; 从容器中除去冰晶和水的混合物; 从容器中取出稀释的防冻溶液，并对溶液进行水分离处理以分离水并形成浓缩的防冻剂，将浓缩的防冻剂与从容器中取出的防冻液混合形成组合的防冻液流; 冷却组合的防冻流以产生冷的防冻流; 并将冷的防冻流再循环到冷冻器皿中。
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公开(公告)号：US4314455A
公开(公告)日：1982-02-09
申请号：US160002
申请日：1980-06-16
申请人： Gerald E. Engdahl
发明人： Gerald E. Engdahl
CPC分类号： A23L2/12 , B01D9/04 , C02F1/22 , C02F2103/08
摘要： A freeze concentration apparatus comprising a cold concentrator tank; a conduit to deliver an aqueous liquid mixture feed stream to the cold concentrator tank; a conduit to feed the liquid mixture from the cold concentrator tank to a freeze exchanger for indirect cooling by heat exchange to a cold fluid to form ice crystals in the liquid mixture; a conduit to feed the liquid mixture containing ice crystals from the freeze exchanger to the cold concentrator tank; a conduit to withdraw liquid mixture from the cold concentrator tank concentrated by the freezing of water therefrom; a conduit to withdraw an ice slurry from the cold concentrator tank and deliver it to an ice slurry washer; a spray system to wash the ice slurry in the washer with water a washer to collect washed ice and an aqueous mixture; a conduit to remove the aqueous mixture from the washer; and an unloader to remove the washed ice from the washer.
摘要翻译： 一种冷冻浓缩装置，包括冷浓缩罐; 用于将水性液体混合物进料流输送到冷浓缩罐的导管; 用于将液体混合物从冷凝器罐供给到冷冻交换器的管道，用于通过与冷流体的热交换进行间接冷却以在液体混合物中形成冰晶; 用于将含有冰晶的液体混合物从冷冻交换器供给到冷凝器槽的导管; 从冷凝水浓缩的冷浓缩罐中抽出液体混合物的管道; 从冷凝器箱抽出冰浆并将其输送到冰浆洗涤器的管道; 用洗涤器洗涤洗涤器中的冰浆以收集洗涤的冰和含水混合物的喷雾系统; 从洗衣机中除去含水混合物的导管; 和一个卸载机，以从洗衣机中清除洗涤的冰。
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公开(公告)号：US4291550A
公开(公告)日：1981-09-29
申请号：US121495
申请日：1980-02-14
申请人： Gerald E. Engdahl , James B. Maher
发明人： Gerald E. Engdahl , James B. Maher
CPC分类号： B01D9/0013
摘要： A method of crystallizing or freezing out a component of a mixture composed of a liquid and a dissolved or suspended solid material, or both, by passing the mixture upwardly through a column containing a mass of insoluble solid particles having a specific gravity greater than that of the mixture; by heat exchange to a cold fluid, indirectly cooling the mixture to a temperature at which the component crystallizes or freezes out of solution, as it flows upwardly in the column; said component being the liquid or dissolved solid material; and said flow of the mixture through the column being at a sufficient velocity to fluidize the insoluble solid particles into turbulent action to scour the column inside surface and thereby prevent build up thereon of the crystallized or frozen out component.Apparatus for practicing the method is also disclosed.
摘要翻译： 通过将混合物向上通过含有大量不溶性固体颗粒的柱子的柱子来结晶或冷冻由液体和溶解或悬浮的固体材料组成的混合物的组分，所述固体颗粒的比重大于 混合物; 通过与冷流体进行热交换，间接地将混合物冷却至组分在塔中向上流动而结晶或冷却出溶液的温度; 所述组分是液体或溶解的固体材料; 并且所述混合物通过所述塔的流动以足够的速度使不溶性固体颗粒流化成湍流作用以冲洗所述塔内表面，从而防止在其上堆积结晶或冷冻组分。 还公开了用于实施该方法的装置。
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公开(公告)号：US07493778B2
公开(公告)日：2009-02-24
申请号：US11502947
申请日：2006-08-11
申请人： Gerald E. Engdahl
发明人： Gerald E. Engdahl
CPC分类号： F17C5/06 , F17C9/02 , F17C13/025 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2223/043 , F17C2223/047 , F17C2225/0123 , F17C2225/035 , F17C2227/0135 , F17C2227/0178 , F17C2227/0185 , F17C2227/0302 , F17C2227/0393 , F17C2250/0408 , F17C2250/0434 , F17C2250/061 , F17C2265/03 , F17C2265/034 , F17C2265/037 , F17C2270/0136
摘要： The assembly includes a boil-off gas line that carries storage tank boil-off gas to a condenser that uses condensing liquid from the liquid send-out line to condense the gas. A level control valve on the condensing liquid line actively controls the flow of condensing liquid based on the liquid level in the condenser. A check valve prevents liquid from the send-out line from flowing into the condenser through the condensate line that discharges condensate from the condenser to the send-out line.
摘要翻译： 该组件包括一个蒸发气体管线，其将储罐蒸发气体运送到冷凝器，该冷凝器使用来自液体送出管线的冷凝液体来冷凝气体。 冷凝液管上的液位控制阀基于冷凝器中的液位主动地控制冷凝液的流动。 止回阀防止送出管路中的液体通过将冷凝水从冷凝器排出到送出管线的冷凝管线流入冷凝器。
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