公开(公告)号：US5346534A

公开(公告)日：1994-09-13

申请号：US71581

申请日：1993-06-02

申请人： David C. H. Grant

发明人： David C. H. Grant

IPC分类号： B01D5/00 ,  B01D53/00 ,  B01D19/00

CPC分类号： B01D5/0054 ,  B01D53/005

摘要： A system for processing a product with a solvent containing volatile constituents, the system including a pressure chamber for receiving the product, a vacuum pump for evacuating the chamber, a solvent recirculating system for admitting the solvent at a predetermined pressure into the chamber, the solvent recirculating system including a heater for maintaining the temperature of the chamber at the saturation temperature of the solvent, gas liquid separator for separating the gas and liquid components of the solvent discharged from the chamber, a first closed loop system connected to the separator to return the gas constituent to the chamber and a second closed loop system connected to the separator to return the liquid component to the chamber.

摘要翻译： 一种用含有挥发性成分的溶剂处理产品的系统，该系统包括用于接收产品的压力室，用于抽空该室的真空泵，用于以预定压力将溶剂引入该室的溶剂循环系统，该溶剂 循环系统，包括用于将室的温度维持在溶剂的饱和温度的加热器，用于分离从室排出的溶剂的气体和液体组分的气液分离器，连接到分离器的第一闭环系统， 气体组分到室中，第二闭环系统连接到分离器以将液体组分返回到室中。

公开(公告)号：US5106404A

公开(公告)日：1992-04-21

申请号：US581020

申请日：1990-09-12

申请人： David C. H. Grant

发明人： David C. H. Grant

IPC分类号： B01D5/00 ,  B01D53/00 ,  B01D53/34 ,  B01D53/44 ,  B01D53/74 ,  B08B3/08 ,  C23G5/04

CPC分类号： C23G5/04 ,  B01D5/0054 ,  B01D53/005

摘要： A system and method for controlling atmospheric emission of volatile materials such as solvents, used to clean or treat articles incident to their manufacture comprising a treatment chamber and a recirculating closed loop gas and solvent recovery system. The chamber is isolated from the closed loop system, the article to be treated is put into the chamber, the chamber is sealed and gases removed by evacuation, these gases being discharged outside the closed loop system. The articles are treated with solvent, dried with a fluid derived in the solvent recovery system from noncondensable gas, residual in the system. Drying is effected by passing the recovered gases from the closed loop system through the chamber and by evacuation. The gas evacuated from the chamber, containing solvent vapor is retained within the closed loop system. The chamber is vented to outside the closed loop system prior to removing the treated item.

摘要翻译： 用于控制用于清洁或处理其制造的物品的挥发性物质如溶剂的大气排放的系统和方法，包括处理室和循环闭环气体和溶剂回收系统。 室与闭环系统隔离，待处理的物品被放入室内，室被密封，通过排空除去气体，这些气体被排出到闭环系统外。 物品用溶剂处理，用在溶剂回收系统中衍生的流体用不凝气体干燥，在系统中残留。 通过将来自闭环系统的回收气体通过室并通过抽真空来实现干燥。 从室中排出的含有溶剂蒸气的气体保留在闭环系统内。 在拆除处理过的物品之前，将腔室排放到闭环系统外部。

公开(公告)号：US4878931A

公开(公告)日：1989-11-07

申请号：US237744

申请日：1988-08-29

申请人： David C. H. Grant

发明人： David C. H. Grant

IPC分类号： F25J3/02 ,  F25J3/06

CPC分类号： B01D53/1487 ,  B01D5/0057 ,  B01D53/002 ,  B01D53/1406 ,  B01D2257/206 ,  B01D2257/2064 ,  B01D2257/80

摘要： Disclosed is a system for recovering vapor from an air/vapor process stream. The system is operated in two stages, a high temperature stage and a low temperature stage. The high temperature stage may be referred to as a condenser column. The low temperature stage is referred to as the stripper column. The air/solvent vapor stream is conducted first through the condenser column and then through the stripper column. A countercurrent flow of liquid solvent is provided to both the condenser column and the stripper column. In the low temperature stage (condenser column), the countercurrent flow of liquid solvent is at a temperature near but above the freezing point of water. This results in the removal of most of the solvent vapor and water vapor from the air/solvent vapor mixture. The process stream next flows through the stripper column which has a countercurrent flow of liquid solvent below the freezing point of water which serves to remove the remaining solvent vapor and water vapor contained in the process stream. The system may be operated on a once through basis although better overall recovery will be accomplished if the system is operated in a recirculation mode. Because it is operated in two stages, there is accomplished a significant reduction in the power requirements of the refrigeration system. Further, the removal of the majority of the water vapor from the process stream prior to the low temperature stage significantly reduces the problems created by fouling of the stripper column by water ice.

摘要翻译： 公开了一种用于从空气/蒸汽过程流中回收蒸气的系统。 该系统分两个阶段运行，分别是高温阶段和低温阶段。 高温段可以称为冷凝塔。 低温阶段称为汽提塔。 空气/溶剂蒸汽流首先通过冷凝器塔，然后通过汽提塔。 液体溶剂的逆流提供给冷凝器塔和汽提塔。 在低温阶段（冷凝器柱）中，液体溶剂的逆流流动的温度接近但高于水的凝固点。 这导致从空气/溶剂蒸汽混合物中除去大部分溶剂蒸气和水蒸气。 然后，工艺流程流过汽提塔，其具有低于水凝结点的液体溶剂的逆流流动，其用于去除工艺流中所含的剩余溶剂蒸气和水蒸气。 尽管如果系统以再循环模式运行，系统可以在一次完成的基础上进行操作，尽管更好的整体恢复将被实现。 由于它分两个阶段运行，所以制冷系统的功率要求大大降低。 此外，在低温阶段之前从工艺流中除去大部分水蒸气显着地减少了由水冰污染汽提塔而产生的问题。

公开(公告)号：US5176187A

公开(公告)日：1993-01-05

申请号：US601838

申请日：1990-10-18

申请人： David C. H. Grant

发明人： David C. H. Grant

IPC分类号： F25B45/00

CPC分类号： B60H1/00585 ,  F25B45/00 ,  F25B2345/002 ,  F25B2345/006

摘要： A process and apparatus for evacuating refrigerant for recovery from a conventional refrigeration sytems, e.g. automobile air conditions, preferably by attachment to a manifold having multiple evacuation devices, e.g. compressor, vacuum pump, transfer pump with the evacuation devices discharging through self-closing quick connect valves into at least one flexible accumulator, e.g. a bag mounted onto a manifold, and with an additional transfer pump evacuating the bag gradually to a recovery system which can be a conventional refrigerant recovery condensing unit with purification. Facilities for receiving bags filled from refrigeration systems which are remote from the system, e.g. home refrigerators, can be provided to weigh the contents into the manifold for recovery.

摘要翻译： 用于从用于从常规制冷系统中回收的制冷剂排出的方法和装置，例如， 汽车空气条件，优选通过连接到具有多个排气装置的歧管，例如， 压缩机，真空泵，排气装置的输送泵通过自动关闭快速连接阀排放到至少一个柔性蓄能器中。 一个安装在歧管上的袋子，另外还有一个附加的传送泵，将袋子逐渐排空到一个回收系统，该回收系统可以是纯化的传统的制冷剂回收冷凝单元。 用于从远离系统的制冷系统接收袋子的设备，例如， 家用冰箱，可以提供称重内容物到歧管中进行恢复。

公开(公告)号：US5343885A

公开(公告)日：1994-09-06

申请号：US845689

申请日：1992-03-04

申请人： David C. H. Grant

发明人： David C. H. Grant

IPC分类号： B08B3/08 ,  B01D5/00 ,  B08B3/10 ,  C23G5/04

CPC分类号： B01D5/0054 ,  C23G5/04

摘要： A vacuum air lock assembly for transferring an article into an enclosure for treating the article with a solvent, the enclosure including a door for admitting the article into or out of the enclosure, the assembly including a chamber mounted on the enclosure and having an outer door, the chamber being sealed to the enclosure for transferring the article from the chamber through the enclosure door into the enclosure, a vacuum pump for drawing a vacuum in the chamber and discharging the air to atmosphere, the chamber being connected to the enclosure to break the vacuum in the chamber with solvent vapor from the enclosure, the article is transferred into the enclosure through the enclosure door for treatment and returned to the chamber after treatment, and the solvent vapor in the chamber is returned to the enclosure chamber through the vacuum pump and the vacuum in the chamber is broken to atmosphere.

摘要翻译： 一种用于将物品转移到外壳中用于用溶剂处理物品的真空气锁组件，所述外壳包括用于将所述物品进入或离开所述外壳的门，所述组件包括安装在所述外壳上的室，并具有外门 所述室被密封到所述外壳，用于将所述物品从所述室通过所述封闭门传送到所述外壳中;真空泵，用于在所述室中抽真空并将空气排放到大气中，所述室连接到所述外壳以破坏所述外壳 在室内用溶剂蒸气从外壳真空，将物品通过封闭门转移到外壳中进行处理，并在处理后返回到室中，并且室中的溶剂蒸气通过真空泵返回到封闭室， 室中的真空被破坏到大气。

公开(公告)号：US5192340A

公开(公告)日：1993-03-09

申请号：US839965

申请日：1992-02-21

申请人： David C. H. Grant ,  Randolph H. Watkins ,  Robert M. Sluga ,  Steven J. Wurgler ,  Gregory D. Mills ,  Dennis C. Berry ,  Jerry D. Fisher

发明人： David C. H. Grant ,  Randolph H. Watkins ,  Robert M. Sluga ,  Steven J. Wurgler ,  Gregory D. Mills ,  Dennis C. Berry ,  Jerry D. Fisher

IPC分类号： B01D5/00 ,  B01D19/00 ,  B01D53/00 ,  B01D63/02 ,  B01D65/02

CPC分类号： B01D53/005 ,  B01D19/0068 ,  B01D5/0054 ,  B01D63/021 ,  B01D65/02 ,  B01D2321/04 ,  B01D2321/16 ,  B01D2321/185

摘要： An emission control system for a fluid composition comprised of volatile constituents used to clean a hollow fiber filter or capillary flow dialyzer including a housing having a chamber for receiving the dialyzer, a control system is used for establishing a desired environment in the chamber, the dialyzer and the fibers, a separator operatively associated with the chamber for separating gas and liquid components of the fluid composition, a stripper connected to the separator for fractionating lower boiling point volatiles from the gas to return the higher boiling point volatiles to the fluid phase and yield a stripped or solvent humidified gas and a delivery system for routing the stripped gas to the chamber dialyzer and fibers as a drying agent.

摘要翻译： 一种用于清洁中空纤维过滤器或毛细管流式透析器的挥发性组分的流体组合物的排放控制系统，包括具有用于接收透析器的室的壳体，控制系统用于在腔室中建立期望的环境，透析器 并且纤维，与腔室可操作地相关联的用于分离流体组合物的气体和液体组分的分离器，连接到分离器的汽提器，用于从气体中分馏低沸点挥发物以将高沸点挥发物返回到流体相，并产生 剥离或溶剂加湿的气体和用于将剥离的气体引导到腔室透析器和作为干燥剂的纤维的递送系统。

公开(公告)号：US5094277A

公开(公告)日：1992-03-10

申请号：US600367

申请日：1990-10-19

申请人： David C. H. Grant

发明人： David C. H. Grant

IPC分类号： F25B45/00

CPC分类号： B60H1/00585 ,  F25B45/00 ,  F25B2345/002

摘要： A refrigerant recovery and purification system employs a centrifugal separator connected to a disabled automotive air conditioning system and connects a slack-sided accumulator to a reclaim condenser chamber. Oil and contaminants are separated by centrifugal action from the incoming refrigerant. Condensing of reclaimed refrigerant vapor in a condenser produces a vacuum pressure causing vapor to flow from the slack-sided accumulator. A conventional refrigeration system supplies refrigerant to a first evaporator coil and to a second evaporator coil surrounding a liquid receiver connected by a conduit with the reclaim condenser. A power cylinder axially vertically positioned above a vertically upright refrigerated block drives a piston rod connected to a T-shaped piston screw small diameter shank projecting through a slightly larger diameter bore within the bottom of an upwardly open cup-shaped piston slidable within the refrigerated block receiver chamber. The piston rod has a spherical lower end which seals off the bore thereof expelling condensed liquid refrigerant from the receiver chamber. Vapor flows from the receiver chamber into the mounting tube and condensed liquid refrigerant drains into the receiver chamber during raising of the cup-shaped piston.

摘要翻译： 制冷剂回收和净化系统采用连接到残疾汽车空调系统的离心分离器，并将松弛侧面蓄能器连接到回收冷凝器室。 油和污染物通过来自进入的制冷剂的离心作用分离。 在冷凝器中冷凝回收的制冷剂蒸汽会产生真空压力，导致蒸汽从松散的蓄液器流出。 传统的制冷系统将制冷剂提供给第一蒸发器盘管和围绕通过回流冷凝器的导管连接的液体接收器的第二蒸发器盘管。 轴向垂直定位在垂直竖立的冷藏块上方的动力缸驱动连接到T形活塞螺杆的小直径杆的活塞杆，该小直径柄突出通过在冷藏块内可滑动的向上敞开的杯形活塞的底部内的稍微更大的直径的孔 接收室。 活塞杆具有球形下端，其密封其孔，其从接收器室排出冷凝的液体制冷剂。 蒸汽从接收器室流入安装管，并且冷凝的液体制冷剂在杯形活塞升高期间排入容器室。

公开(公告)号：US5058631A

公开(公告)日：1991-10-22

申请号：US394594

申请日：1989-08-16

申请人： David C. H. Grant

发明人： David C. H. Grant

IPC分类号： F25B45/00

CPC分类号： B60H1/00585 ,  F25B45/00 ,  F25B2345/002 ,  F25B2345/006

摘要： A process and system for recovering refrigerant from refrigeration systems without substantial contamination of the atmosphere. The system includes devices for removing refrigerant from the system under the vapor pressure of the refrigerant or with aid from a pump, a conduit for conveying the refrigerant from the system, and a collapsible bag constructed of a flexible material substantially impermeable to refrigerant and to air, having at least one inlet for introducing refrigerant to be salvaged and sealing means for sealing the inlet on the bag. After filling, the bags may be transported to a recovery system for recovering refrigerant from the bag so that the refrigerant may be purified and recovered for reuse.

摘要翻译： 一种用于从制冷系统回收制冷剂而不大量污染大气的方法和系统。 该系统包括用于在制冷剂的蒸汽压力下或借助于泵，用于从系统输送制冷剂的导管以及由基本上不可渗透制冷剂和空气的柔性材料构成的可折叠袋的系统中从制冷剂中除去制冷剂的装置 具有至少一个用于引入要回收的制冷剂的入口和用于密封袋上的入口的密封装置。 在填充之后，袋可以被运送到用于从袋中回收制冷剂的回收系统，使得可以净化和回收制冷剂以便重新使用。

公开(公告)号：US4969495A

公开(公告)日：1990-11-13

申请号：US371785

申请日：1989-06-27

申请人： David. C. H. Grant

发明人： David. C. H. Grant

IPC分类号： F25B45/00

CPC分类号： B60H1/00585 ,  F25B45/00 ,  F25B2345/002

摘要： A refrigerant recovery and purification system particularly applicable to automotive air conditioning systems employs a centrifugal separator connected directly to the disabled automotive air conditioning system and which connects to a slack-sided accumulator and to a condenser chamber, all operating at near atmospheric pressure in a low pressure section. Oil and contaminants are separated by centrifugal action from the incoming refrigerant vapor stream and removed by gravity from the separator chamber. Condensing of the refrigerant vapor in the condenser produces a vacuum pressure for causing vapor to flow from the slack-sided accumulator to the condenser. A conventional refrigeration system supplies refrigerant liquid under pressure to a first evaporator coil within the condenser. The conventional refrigeration system also supplies high pressure liquid refrigerant to a second evaporator coil surrounding a liquid receiver connected by a conduit in series with the condenser and the accumulator. Condensed liquid refrigerant from the condenser flows to the liquid receiver by gravity. Periodically the liquid receiver is pressurized to drive condensed contaminant-free liquid refrigerant to a liquid refrigerant storage tank. Check valves within conduits connecting the condenser to the liquid receiver and the liquid receiver to the liquid refrigerant storage tank facilitate system operation and maintenance of desired pressures within low pressure and high pressure sections of the system.

摘要翻译： 特别适用于汽车空调系统的制冷剂回收和净化系统采用直接连接到残疾汽车空调系统的离心分离器，其连接到松弛侧面蓄能器和冷凝器室，所有这些都在低压大气压下运行 压力段。 油和污染物通过来自进入的制冷剂蒸汽流的离心作用分离，并通过重力从分离器室中除去。 冷凝器中的制冷剂蒸气的冷凝产生真空压力，使蒸汽从松散侧蓄液器流向冷凝器。 传统的制冷系统将压力下的制冷剂液体供应到冷凝器内的第一蒸发器盘管。 传统的制冷系统还将高压液体制冷剂供应到围绕由与冷凝器和蓄能器串联的导管连接的液体接收器的第二蒸发器盘管。 来自冷凝器的冷凝液体制冷剂通过重力流向液体容器。 定期地将液体接收器加压以将冷凝的无污染液体制冷剂驱动到液体制冷剂储存罐。 将冷凝器连接到液体接收器的管道内的止回阀和液体制冷剂储存罐的液体接收器便于系统的低压和高压部分的系统操作和维护期望的压力。

公开(公告)号：US5503175A

公开(公告)日：1996-04-02

申请号：US361541

申请日：1994-12-22

申请人： Paul W. Ravilious ,  David C. H. Grant

发明人： Paul W. Ravilious ,  David C. H. Grant

IPC分类号： E03B7/00 ,  G01F1/24 ,  G01M3/28 ,  G01P13/00 ,  F16K17/00 ,  F16K21/16

CPC分类号： E03B7/071 ,  G01F1/24 ,  G01M3/2807 ,  G01P13/002 ,  Y10T137/0318 ,  Y10T137/7723 ,  Y10T137/7727 ,  Y10T137/86397

摘要： A water safety valve, system and method for detecting and shutting off water flow due to leaks or breaks in a water line in which the water flow is at a very low rate on the order of three to five fluid ounces per minute but having the capability of passing large flows of three hundred to five hundred times this amount. The system provides an automatic fluid shut off with an over-ride timer with an automatic return to normal operation when a predetermined period has expired. It further allows simple shut off and activation of the system with a single conveniently located control.

摘要翻译： 一种水安全阀，系统和方法，用于检测和关闭由于水流中的泄漏或断裂而引起的水流，其中水流以非常低的速率在每分钟3-5流体盎司但具有能力 通过这个数量的三百到五百倍的大流量。 系统提供自动流体关闭与超驰定时器，当预定时间段到期时，自动返回正常操作。 它还允许使用单个方便的位置控制简单地关闭和激活系统。