CN206121467U - 提供有吸附试剂的吸附装置 - Google Patents

提供有吸附试剂的吸附装置 Download PDF

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CN206121467U
CN206121467U CN201620782820.5U CN201620782820U CN206121467U CN 206121467 U CN206121467 U CN 206121467U CN 201620782820 U CN201620782820 U CN 201620782820U CN 206121467 U CN206121467 U CN 206121467U
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adsorbent equipment
gas
adsorption equipment
reagent
compressed gas
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C·拉梅尔斯
S·H·R·W·穆勒
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Atlas Copco Airpower NV
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Abstract

用于处理压缩气体的吸附装置，其中所述吸附装置(1)包括外壳(2)，所述外壳(2)具有用于待处理气体的气体入口(3)和用于经处理气体的出口(4)，和其中所述吸附装置(1)还包括在所述外壳(2)中提供的吸附试剂(5)，所述吸附试剂(5)包括：‑整块状支持结构(6)；‑在所述支持结构(6)上提供的经烧结的涂层(7)，所述经烧结的涂层(7)包括吸附剂。根据本实用新型的吸附装置的优点在于在用于处理压缩气体的吸附装置中的使用过程中，不存在颗粒相对于彼此移动或甚至流化吸附试剂的风险，因为没有使用松散的吸附试剂颗粒。结果防止了粉尘形成，同时相对高流速的待干燥的压缩气体穿过干燥装置是可能的。

Description

提供有吸附试剂的吸附装置
技术领域
本发明涉及用于处理压缩气体的吸附装置，更具体地，提供有可用于干燥压缩气体，例如压缩空气的吸附试剂的吸附装置。
背景技术
呈用于压缩气体的干燥装置形式的吸附装置已经是已知的，其中这些干燥装置包括容器，在所述容器中放置干燥试剂或干燥剂。有关的容器提供有用于供应待干燥的压缩气体的入口和用于除去经干燥的气体的出口。
有关的干燥试剂通常以可再生的干燥试剂形式，或换言之以在达到一定饱和程度之后可再生的干燥试剂形式实现。当干燥试剂从待干燥的气体中提取水分时确实是这样，该干燥试剂将会逐渐被吸附的水分饱和。因此，在将所述干燥试剂用于干燥压缩气体一段时间之后，普遍的是再生该干燥试剂，例如通过使其暴露于再生气流，所述再生气流从所述干燥试剂中提取水分。这样的再生气流可以由例如其相对湿度足够低，使得能实现干燥试剂再生的热气体和/或经干燥的气体的级分组成。
在用于压缩气体的干燥装置的一些实施方案中，使用两个或更多个干燥试剂的容器。在采用两个容器的情况下，干燥装置的该原理也被称为双塔干燥器。在这种类型的干燥装置中，可以使压缩气体，例如源自压缩机的压缩气体穿过例如前述容器的第一个，其中在穿过下游冷却器和冷凝物分离器(它们可以或者可以不形成有关的下游冷却器的一部分)之后，它将被有关的容器中的干燥试剂干燥。该容器因此充当干燥容器。
与此同时，可以引导再生气流通过第二个前述容器，从而在所述第二个容器中通过从该干燥试剂中提取水分而再生所述干燥试剂。这可以通过使用已经干燥的气体，例如从干燥容器下游流出的已经干燥的气体和/或通过供应已经加热的气流来完成，所述加热例如通过在压缩过程中回收在压缩机中产生的热而进行。在该后一情况下，它被称为“压缩热”或HOC干燥器。
当干燥容器中的干燥试剂已达到一定的饱和程度时，可以调换通过第一和第二容器的气流，使得在第一容器中的干燥试剂现在将会通过再生气流再生，同时第二容器将会承担干燥容器的作用。以该方式，两个或更多个容器将作为干燥压力容器和再生压力容器交替运行，从而实现干燥工艺的连续性。采用多个容器的这样的干燥装置的实例例如描述于US 2003/023,941，US 4,783,432，US 6,375,722，EP 1,776,171和WO 2006/050,582中。
用于这样的具有多个容器的干燥装置中的干燥试剂经常由硅胶、活性氧化铝或分子筛材料或其组合的颗粒组成。已知活性氧化铝通过热脱水或活化氢氧化铝Al(OH)3来生产，而分子筛由合成沸石(结晶硅铝酸盐)组成。
包括颗粒形式的干燥试剂的这种类型的干燥装置的限制在于通过容器的气体速率必须受到限制，从而抵抗相对于彼此移动或甚至流化的颗粒。确实，由于在所述颗粒之间会发生颗粒处于运动摩擦的状况，这又导致粉尘形成和降低的干燥能力。这样的粉尘形成的其它原因例如是压力变化和/或热冲击。此外，横跨双塔干燥器的压降相对高，并且干燥剂颗粒具有相当高的热质量。
对于压缩气体而言，备选的干燥装置是已知的，其中将干燥试剂放置在转鼓中，同时干燥区和再生区在该容器中延伸。在这样的干燥装置的运行过程中，将通过为此提供驱动机构使干燥转鼓旋转，使得在该干燥转鼓中的干燥试剂将会交替地被带动通过干燥区和再生区。待干燥的压缩气体将会被引导通过所述干燥区，同时将再生气流引导通过再生区，从而实现同时在干燥区中干燥压缩气体和在再生区中再生干燥试剂。
提供有旋转干燥转鼓的这样的干燥装置的实例例如描述于WO 00/033,943，WO00/074,819，WO 01/078,872，WO 01/087,463，WO 02/038,251，WO 2007/079533，WO 2005/070,518，WO 2006/012,711，GB 1,226,348，GB 1,349,732，GB 1,426,292，US 3,490,201，US 5,385,603和US 8,349,054中。
用于干燥压缩气体的已知干燥装置中的干燥试剂或干燥剂例如由硅胶、分子筛、活性氧化铝或其组合组成。已知的是，可以将干燥试剂固定在载体，例如卷起的玻璃纤维或陶瓷纤维的波纹结构上，例如以在容器中形成蜂窝结构，例如如US 5,683,532中所描述。
在实践中，证明采用用于干燥压缩气体的已知干燥装置，在某些条件下，如在干燥试剂的再生不足及其过饱和情况下，干燥试剂经历复杂的分解过程，所述分解过程在一些情况下可以最终导致干燥装置失效，例如在硅胶在滚筒(rotor)内作为干燥试剂的情况下，因为所述硅胶的粘结功能下降，这导致支持性玻璃纤维基体的结构强度损失，且还由于硅胶结构的水解和分解，硅胶的吸附功能下降。
因此，在高湿度和高温的激烈条件下，硅胶滚筒的吸附行为和吸附能力在滚筒的使用寿命期间将显著变化。
发明内容
本发明的目的在于提供改进的吸附装置，所述吸附装置提供有用于处理压缩气体的吸附试剂，其中该吸附装置提供与常规的已知吸附装置相关的一个或多个缺点的解决方案。
为此，本发明涉及用于处理压缩气体的吸附装置，其中所述吸附装置包括外壳，所述外壳具有用于待处理气体的气体入口和用于经处理气体的出口，和其中所述吸附装置还包括在所述外壳中提供的吸附试剂，所述吸附试剂包括：
-整块状支持结构；
-在所述支持结构上提供的经烧结的涂层，所述经烧结的涂层包括吸附剂。
根据本发明的吸附装置的优点在于在用于处理压缩气体的吸附装置中的使用过程中，不存在颗粒相对于彼此移动或甚至流化吸附试剂的风险，因为没有使用松散的吸附试剂颗粒。结果防止了粉尘形成，同时相对高流速的待干燥的压缩气体穿过干燥装置是可能的。
另外，可以将干燥试剂在使用过程中以任何空间取向，例如垂直、倾斜或甚至水平固定在干燥装置中，而这在采用颗粒状的常规干燥试剂的情况下是不可能的，因为水平使用这样的颗粒干燥试剂可能导致颗粒重排并且形成内部泄露路径和因此降低干燥器性能。
根据本发明的优选特征，前述整块状支持结构包括一种或多种以下材料：陶瓷材料、金属箔、纤维结构和聚合物。采用含有堇青石的陶瓷结构获得了尤其良好的结果。
优选地，前述吸附剂含有一种或多种以下材料：沸石、硅胶、活性氧化铝、活性炭、金属有机框架、碳分子筛(CMS)、经浸渍的吸附剂和混杂物(hybrid)。特别优选亲水性沸石载体。通过使用其中硅/铝之比为2至3的X型八面沸石，获得良好结果。
附图说明
为了更好地显示本发明特征的意图，参考附图在没有任何限制特性的情况下，下文借助实施例描述用于处理压缩气体的根据本发明的吸附装置的若干优选实施方式，所述附图示意性示出了根据本发明的吸附装置。附图1示意性地显示了根据本发明的吸附装置。
具体实施方式
如附图中所示的吸附装置1包括外壳2，所述外壳2具有用于待处理的压缩气体的入口3并且具有用于经处理气体的出口4。
在所述外壳2中，所述吸附装置包括吸附试剂5，所述吸附试剂5包括整块状支持结构6和在所述支持结构6上提供的经烧结的涂层7，所述经烧结的涂层7包括吸附剂。
根据优选、但非必须的本发明的特征，所述整块状支持结构6由含有堇青石的陶瓷结构，例如Corning的组成。
或者，根据本发明，所述支持结构也可以由另一材料制成，例如：
-其它陶瓷材料，如莫来石，γ-氧化铝或α-氧化铝或碳化硅(SiC)；
-金属箔；
-纤维结构，例如基于玻璃纤维、陶瓷纤维或其它纤维，或不同类型纤维的混合物的纤维结构；或
-聚合物。
毋庸置疑，前述列举不是穷举，且不排除使用其它材料。
根据本发明，也并不排除整块状支持结构由两种或更多种前述和/或其它材料的组合制成。
根据本发明的优选特征，由其制造支持结构的材料优选包含200至1200CPSI(孔/平方英寸)和更优选350至450CPSI。
支持结构的壁厚优选为2至11密耳(毫英寸)，和更优选3至9密耳，和甚至更优选5至7.5密耳。在最优选的实施方案中，壁厚为6至7密耳，优选约6.5密耳。
支持结构的壁的孔隙率优选大于5％，和更优选大于10％，和甚至更好地大于20％。
所形成的孔优选具有正方形形状，但可存在其它形状，如三角形、正弦、圆形、六边形和类似形状。
所述涂层的吸附剂可以包括以下材料之一：
-沸石，优选亲水性沸石，但疏水沸石也是可能的–该沸石可以是例如X型八面沸石，例如Tosoh的Zeolum F9，或者X和A型沸石的混合物；
-硅胶；
-活性氧化铝；
-活性炭；
-金属-有机框架；
-碳分子筛(CMS)；
-经浸渍的吸附剂；和
-混杂(hybrid)的吸附剂。
上述列举不是穷举，并且根据本发明，其它材料也是可能的。吸附剂的选择取决于待处理的气体必须经历什么处理，例如干燥或选择性除去其它分子，如氧气或二氧化碳，例如当在氮气发生器或类似装置中使用吸附机构时，其中待处理的气体可以例如是压缩空气。
吸附剂的粒度分布优选使得D50小于10μm和更优选小于4μm。
绝不将本发明以任何方式限制到作为实施例描述和在附图中显示的实施方案，而是可以以许多形状和形式，实现根据本发明的吸附装置，而不脱离本发明的范围。

Claims (5)

1.用于处理压缩气体的吸附装置，其中所述吸附装置(1)包括外壳(2)，所述外壳(2)具有用于待处理气体的气体入口(3)和用于经处理气体的出口(4)，和其中所述吸附装置(1)还包括在所述外壳(2)中提供的吸附试剂(5)，所述吸附试剂(5)包括：
-整块状支持结构(6)；
-在所述支持结构(6)上提供的经烧结的涂层(7)，所述经烧结的涂层(7)包括吸附剂。
2.根据权利要求1所述的吸附装置，其特征在于，所述整块状支持结构包括一种或多种以下材料：陶瓷材料、金属箔和纤维结构。
3.根据权利要求2所述的吸附装置，其特征在于，作为所述整块状支持结构的陶瓷结构含有堇青石。
4.根据权利要求1-3任一项所述的吸附装置，其特征在于，前述吸附剂包括亲水性沸石。
5.根据权利要求1-3任一项所述的吸附装置，其特征在于，前述吸附剂包括X型八面沸石。
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US11845062B2 (en) 2023-12-19
KR20180001657U (ko) 2018-06-04
JP6755936B2 (ja) 2020-09-16
EP3325130A1 (en) 2018-05-30
EP3325130B1 (en) 2021-09-15
BR112018001064A2 (pt) 2018-09-11
US20180214850A1 (en) 2018-08-02
RU179464U1 (ru) 2018-05-15
US20210291147A1 (en) 2021-09-23
ES2901130T3 (es) 2022-03-21
BR112018001064B1 (pt) 2023-02-07
KR200492393Y1 (ko) 2020-10-05
DK3325130T3 (da) 2021-12-13
WO2017015728A1 (en) 2017-02-02
PT3325130T (pt) 2021-12-20
EP3922340A1 (en) 2021-12-15
US20240082822A1 (en) 2024-03-14
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US11059029B2 (en) 2021-07-13

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