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1.发明授权
公开(公告)号：US4551091A
公开(公告)日：1985-11-05
申请号：US605318
申请日：1984-04-30
申请人： Alan J. F. Paterson
发明人： Alan J. F. Paterson
CPC分类号： F27D99/0075 , C21D1/74 , F27B9/045 , F27B9/047
摘要： The volume of atmosphere needed to inhibit the ingress of ambient oxygen into the furnace chamber (3) of a continuous heat treatment furnace (1) can be reduced by introducing a gas containing free oxygen (e.g. air) into the entrance section (2) and/or exit section (4) adjacent the roof thereof. Thus a relatively inexpensive gas may often be used in combination with an expensive atmosphere thereby significantly reducing overall process cost. Continuous heat treatment furnaces can readily be converted to perform the method by simply inserting adjacent the roof of the entrance and/or exit section a tube (3) having a slot and/or a plurality of downwardly facing holes (9) and connecting the tube to a supply of the requisite gas. The invention is applicable to both double open ended furnaces and continuous furnaces in which the exit section is filled with a liquid, e.g. oil or molten salt. In these latter cases the gas is introduced in the entrance section (2).
摘要翻译： 可以通过将含有游离氧气（例如空气）的气体引入入口部分（2）和（c）中，来抑制环境氧进入连续热处理炉（1）的炉室（3）所需的气氛体积 /或邻近其顶部的出口部分（4）。 因此，相对便宜的气体通常可以与昂贵的气氛组合使用，从而显着降低整体工艺成本。 连续热处理炉可以容易地转换，以通过简单地将入口和/或出口部分的顶部插入具有槽和/或多个朝下的孔（9）的管（3）并连接管 供应所需的气体。 本发明适用于双开口炉和连续炉，其中出口部分填充有液体，例如， 油或熔盐。 在后一种情况下，气体被引入入口部分（2）。
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公开(公告)号：US5409526A
公开(公告)日：1995-04-25
申请号：US132541
申请日：1993-10-05
CPC分类号： B01D53/0415 , F17C13/002 , B01D2253/108 , B01D2259/4525 , F17C2201/0109 , F17C2201/0119 , F17C2201/032 , F17C2201/058 , F17C2205/0329 , F17C2205/0335 , F17C2205/0338 , F17C2205/0341 , F17C2205/0382 , F17C2205/0391 , F17C2221/05 , F17C2223/0123 , F17C2270/0518
摘要： An apparatus for supplying high purity gas comprises a cylinder having a valve with two internal ports. One internal port is used to fill the cylinder while the other is fitted with a unit which removes particulates and impurities from the gas as it leaves the cylinder. The unit comprises an inlet, a first filter for removing coarse particulates, layers of adsorbent and absorbent for removing impurities, and a second filter for removing fine particulates. The purified gas leaves the cylinder via the valve and after passing through a regulator, a flow control device and various lengths of tubing passes through a conventional purifier immediately upstream of the point of use. The apparatus reduces the load on the purifier and hence decreases the frequency at which the purifier has to be recharged. Potentially the apparatus could obviate the need for the purifier altogether.
摘要翻译： 用于提供高纯度气体的装置包括具有带有两个内部端口的阀的气缸。 一个内部端口用于填充气缸，而另一个内部端口装配有一个单元，当气体离开气缸时，可以从气体中去除微粒和杂质。 该单元包括入口，用于除去粗颗粒的第一过滤器，吸附剂层和用于除去杂质的吸收剂，以及用于除去细小颗粒的第二过滤器。 净化后的气体经由阀离开汽缸，在通过调节器之后，流量控制装置和各种长度的油管在紧接使用点的上游通过常规净化器。 该装置减少净化器上的负载，因此降低净化器必须再充电的频率。 可能的是，该装置可以完全消除对净化器的需要。
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