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聚四氟乙烯冷凝管利用热交换原理使冷凝性气体冷却凝结为液体的一种塑料仪器。有直形、球形、蛇形三种，规格以长度（mm）表示，有150~300ml等多种。冷凝水从下口进上口出是为了使冷水与热水蒸气的接触面积大，接触时间长。冷凝水从下口进入，慢慢充满冷凝管。这样冷水可以在冷凝管内停留***长的时间，同时冷水和热气的热交换主要是通过冷凝管壁进行，冷凝管中充满了水，热交换效率也比较高。配套的反应装置：聚四氟乙烯反应瓶、聚四氟乙烯恒压分液漏斗冷凝管的一端接反应瓶，一端接接收瓶，完成成套蒸馏—冷凝—回流实验。聚四氟乙烯冷凝管特点：高纯四氟材料，本底低，纯净无污染，耐高低温相对玻璃冷凝管，聚四氟乙烯塑料更抗摔可按要求定制，满足多种需要内壁光滑无毛刺南京滨正红仪器有限公司方圆 QQ: 2951881909 手机: 139 139 64005(微信同) 电话: 025-8322 3307E-mail：zh3302@126.com/2951881909@qq.comLED">ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" SANdbox="allow-forms allow-popUPS allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" frameborder="0" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A32776%2C2%3A32776%2C8%3A134217728%2C9%3A134250504%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=0&pra=5&wgl=1&uach=WyJXaW5kb3dzIiwiMTAuMCIsIng4NiIsIiIsIjkxLjAuODY0LjU0IixbXV0.&dt=1624517115365&bpp=2&bdt=41&idt=23&shv=r20210621&cbv=%2Fr20110914&ptt=9&saldr=aa&cookie=ID%3D9dfeee79f5fe3638-229698a5f7c90033%3AT%3D1624434976%3ART%3D1624434976%3AS%3DALNI_MY2wXoImTNb0yqB_zgZWRbo7GlU_A&nras=1&correlator=4215689876469&frm=23&ife=1&pv=2&ga_vid=676407101.1624517115&ga_sid=1624517115&ga_hid=1703379543&ga_fc=0&nhd=1&u_tz=480&u_his=50&u_java=0&u_h=1080&u_w=1920&u_ah=1040&u_aw=1920&u_cd=24&u_nplug=3&u_nmime=4&adx=-12245933&ady=-12245933&biw=1247&bih=822&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=31060975%2C21065724%2C31061383&oid=3&pvsid=212973221827055&pem=54&wsm=1&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&eae=2&fc=1664&brdim=203%2C94%2C203%2C94%2C1920%2C0%2C1263%2C942%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=32772&bc=31&ifi=1&uci=1.q9i4d35ob1zt&fsb=1&dtd=46" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" allow="conversion-measurement" data-google-container-id="1.q9i4d35ob1zt" data-load-complete="true"> |