CFC 的淘汰在很大程度上是通过使用 HFC(氢氟烃)进行替代来完成的,而且这一替代过程并未对安装和运行期间的安全性造成影响。然而,正如我们今天所知,HFC 的广泛采用最终成为导致全球变暖的主要原因。 R22 是一种突出的 HCFC 制冷剂,因为其适用性极广。但是,由于 R22 可能会对臭氧产生轻微的破坏作用,因此也被...
Then in January 2003 the use of interim HCFC gases (hydro chlorofluorocarbons) were banned for the production of polyurethane foam. These changes opened up the refrigeration industry for new developments in refrigerant gases, insulations and techniques. New developments in thermal insulation ...
•可检测CFC、HCFC和HFC等混合制冷剂的泄漏。•可视、可昕报警,具备**功能。•磁性挂钩、挂放方便。•美国TIF红外CFC测漏检测仪IR-1耐用型便携式仪器箱,便于设备的携带和储存。•符合新SAE J2791检漏标准。•2009年获美国«MOTOR»杂志20佳汽车维修设备。 美国TIF检漏仪可检测冷媒:CFC, HFC和HCFC...
prices for HFC-134aand HCFC-22,CFCstockpiles could quickly be transformed into a costly liability. multilateralfund.org multilateralfund.org 随着廉价的无须改造设备的 CFC-12 替代物质进入市场以及 HFC-134a和HCFC-22价格的下跌,氟氯化碳库的储存很快将成为一笔高昂债务。
CFC, HCFC and HCF are common refrigerants. However, CFC has been banned, and HCFC is gradually withdrawing the historical stage because they have a general term—Freon. HFC is one sort of HCFs substances which excludes fluorine atoms (such as R134a, used as CFC-free refrigerant by some refr...
CFC & HCFC制冷剂无氟替换指引 R423A环保制冷剂 替换:氟利昂R12(FREON 12) 应用:用于直接替换现存的离心式冷水机组(中央空调)上使用的R12的一种新型环保制冷剂。 优点:提供简单、快速、高效的直接替换;HFC类制冷剂,ODP值为零;替换时只需将冷冻机油更换成酯类油(POE),而无需对系统进行额外冲洗;仍可继续使用现有...
HFC-245fa即1,1,1,3,3-五氟丙烷 ( 1, 1,1, 3,3-pentafluoropropane ),是一种取代CFC 、 HCFC的化合物. 互联网 The preparation of HFC - 32 by catalytic hydrogenation ofCFC- 12 was explored. 探索了二氟二氯甲烷(CFC -12 )催化加氢制备HFC -32 的方法. ...
德图testo 316-4套装1,包括制冷剂 (CFC, HCFC, HFC, H2)传感器, 仪器包,充电器,耳塞).pdf,Leakage Detector for Refrigerants testo 316-4 testo 316-4 Set 1 the fast and • Very long sensor life reliable leakage detector for all • Optical and audible alar
CFC and HCFC refrigerants. Consult factory for 青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译! 翻译结果1翻译结果2翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 翻译结果2复制译文编辑译文朗读译文返回顶部...
But environmentalists said HFC-134a is a potent contributor to the “greenhouse effect,” a gradual increase in Earth’s temperature caused when solar heat is trapped by atmospheric gases. Some scientists believe higher temperatures could result in catastrophic rises in sea levels, altered rain patt...