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1. 发明授权

US5846833A Method and apparatus for testing a non-hydrocarbon refrigerant 失效
标题翻译：用于测试非烃制冷剂的方法和装置
公开(公告)号：US5846833A
公开(公告)日：1998-12-08
申请号：US785722
申请日：1997-01-17
申请人： Warren R. Clough , Lowell E. Paige , John Attanasio , William A. Faris , H. Harvey Michels , David A. Condit
发明人： Warren R. Clough , Lowell E. Paige , John Attanasio , William A. Faris , H. Harvey Michels , David A. Condit
IPC分类号： G01N11/08 , G01N33/28 , G01N33/00
CPC分类号： G01N33/2835 , G01N11/08 , Y10T436/21
摘要： A method for testing a non-hydrocarbon refrigerant, such as CFC-12 or HFC-134a, in a closed system for hydrocarbons, HCFC-22 refrigerant and ammonia is provided wherein a sample of the non-hydrocarbon refrigerant is withdrawn from the closed system, the pressure of the sample is measured and a metered portion of the sample is passed through a test apparatus (20) including a testing tube (30), a testing tube holder (40) for supporting the testing tube (30) and outfitted with a vent (48) to the atmosphere, and a pressure gauge (70) for indicating the pressure of the sample withdrawn. A medium (38) for indicating the presence of hydrocarbons in the sample flow passing through the testing tube is deposited on a surface disposed in the testing tube. The presence of undesired HCFC-22 refrigerant in the CFC-12 or HFC-134a is indicated by a higher pressure reading on the pressure gauge (70). Finally, the presence of ammonia is sensed by its characteristic pungent odor as the refrigerant sample flow is vented to the atmosphere.
摘要翻译：提供了一种用于在封闭系统中测试碳氢化合物，HCFC-22制冷剂和氨的非烃类制冷剂如CFC-12或HFC-134a的方法，其中非烃制冷剂的样品从封闭系统中取出测量样品的压力，并将样品的计量部分通过包括试管（30）的试验装置（20），用于支撑试管（30）的试管支架（40），并配备有向大气的排气口（48）和用于指示取出的样品的压力的压力计（70）。用于指示通过试管的样品流中存在烃的介质（38）沉积在设置在试管中的表面上。在CFC-12或HFC-134a中存在不需要的HCFC-22制冷剂，由压力表（70）上的较高压力读数表示。最后，随着制冷剂样品流向大气排放，氨的存在被其特征性的刺激性气味所感测。

2. 发明授权

US5363661A Method and apparatus for testing refrigerant 失效
标题翻译：用于测试制冷剂的方法和装置
公开(公告)号：US5363661A
公开(公告)日：1994-11-15
申请号：US116936
申请日：1993-09-03
申请人： David A. Condit , H. Harvey Michels , Thomas J. Garosshen , Warren R. Clough
发明人： David A. Condit , H. Harvey Michels , Thomas J. Garosshen , Warren R. Clough
IPC分类号： G01N31/00 , C09K5/00 , G01N31/22
CPC分类号： G01N31/22
摘要： A method and apparatus for testing refrigerant of one type for contamination by refrigerant of another type as would be the case if an air conditioning or refrigeration system charged with a non-chlorofluorocarbon refrigerant received a replenishment charge of a chlorofluorocarbon refrigerant. A sample of the suspected refrigerant mix is exposed to a reagent that will decompose the contaminant refrigerant but not the refrigerant that is proper for the system. The sample is then tested for a product of the decomposition. If the product is present, then one can conclude that the contaminant refrigerant is present.
摘要翻译：一种用于检测另一种制冷剂污染的制冷剂的方法和装置，如果装有非氯氟烃制冷剂的空调或制冷系统接收到氯氟烃制冷剂的补充装料的情况。可疑制冷剂混合物的样品暴露于将分解污染物制冷剂而不是适用于该系统的制冷剂的试剂。然后测试样品的分解产物。如果产品存在，则可以断定存在污染物制冷剂。

3. 发明授权

US5377496A Refrigeration system with installed acid contamination indicator 失效
标题翻译：装有酸污染指示剂的制冷系统
公开(公告)号：US5377496A
公开(公告)日：1995-01-03
申请号：US131584
申请日：1993-10-05
申请人： Nancy M. Otto , Warren R. Clough , Henry B. Balduzzi
发明人： Nancy M. Otto , Warren R. Clough , Henry B. Balduzzi
IPC分类号： F25B41/00 , F25B49/02 , G01N31/22 , G01K13/00
CPC分类号： G01N31/221 , F25B41/006
摘要： An improved vapor compression refrigeration system that has an indicator for detecting the presence of acid contamination in the refrigerant contained in the system. The indicator is permanently or semipermanently installed so that continuous monitoring of the refrigerant for acid is possible. The indicator is located in a portion of the system where the refrigerant is always in a gaseous state. In a preferred embodiment, the indicator is located in a bypass line between the suction and the discharge of the system compressor. The indicator preferably shows the presence of acid by a color change, visible from a point external to the indicator, in an indicator bed in the indicator. The color change may be either permanent or the indicator bed may return to its original color when the acid contamination is no longer present in the refrigerant.
摘要翻译：一种改进的蒸汽压缩制冷系统，其具有用于检测系统中所含的制冷剂中酸污染的存在的指示器。该指示器是永久或半永久安装的，以便连续监测制冷剂的酸是可能的。指示器位于系统中一直处于气态的制冷剂的一部分。在优选实施例中，指示器位于系统压缩机的抽吸和排出之间的旁路管线中。指示剂优选地在指示器的指示器床中通过颜色变化（从指示器外部的点可见）显示酸的存在。当酸性污染不再存在于制冷剂中时，颜色变化可以是永久性的，或者指示器床可能会恢复到其原始颜色。

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