CN101053725B - 排气过滤器 - Google Patents
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- 239000007789 gas Substances 0.000 claims description 7
- 239000002341 toxic gas Substances 0.000 claims description 7
- 244000198134 Agave sisalana Species 0.000 claims description 4
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- 239000007787 solid Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1615—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of natural origin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0015—Throw-away type filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/88—Replacing filter elements
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/02—Treating gases
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2267/00—Multiple filter elements specially adapted for separating dispersed particles from gases or vapours
- B01D2267/30—Same type of filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
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Abstract
本发明公开了排气过滤器,其包括外管,多个各自具有隔离板的中央关闭式过滤器单元;和多个具有环形隔离板的中央开放式过滤器单元,两种类型的过滤器单元在外管中交替布置。隔离板和环形隔离板被可燃性纤维围绕。当被污染的气体通过可燃性纤维时,所述气体可进行过滤。
Description
技术领域
本发明涉及排气过滤器,特别是涉及用于除去固体成分如放射性污染的磨耗粉末的排气过滤器。
背景技术
在核设施如核能工厂和加速器中,如果使用供油式旋转真空泵获得真空,在操作期间生成废油。因此无油式干真空泵被广泛采用。
然而,即使在干真空泵中,用于润滑旋转部分的油脂可能因放射性而变质。JP11-210658A推荐了包括用于旋转部件的固体润滑轴承的真空排气装置。
但是,即使使用该固体润滑轴承,真空泵在旋转部件的端部具有气密性末梢密封(tip seal),该末梢密封被磨耗并释放于空气中。
为防止它们的发生,在排气管或其它管子中提供过滤器,用于过滤气体并捕捉排出气体中含有的细粉。
然而,工人在修理或更换过滤器时可能遭受排出气体中的放射性的损害。需要提供从干真空泵中排出的气体中除去放射性污染细粉的有效手段。
发明内容
鉴于上述缺点,本发明的目的是提供能够从暴露于放射性下的干真空泵中排出的排出气体中有效除去细粉的排气过滤器,使得气体过滤器的主要部件可进行更换和燃烧而不向环境释放有毒气体。
本发明提供了以下的(1)-(11)项:
(1).排气过滤器,包括:
外管,其具有连接到排出气体生成部分的入口和对空气开放的出口;
多个中央关闭式过滤器单元,其各自包括第一短保持管、在第一短保持管内的直径较小的不透气性可燃性隔离板、和围绕隔离板并且在保持管内燃烧时不生成有毒气体的第一可燃性纤维;和
多个中央开放式过滤器单元,其各自包括第二短保持管、在第二短保持管内的不透气性可燃性环形隔离板、和围绕环形隔离板并且在保持管内燃烧时不生成有毒气体的第二可燃性纤维,所述的多个中央关闭式过滤器单元和所述的多个中央开放式过滤器单元在外管中交替布置。
(2).(1)项所述的排气过滤器,其中外管由不可燃性材料制成。
(3).(1)项所述的排气过滤器,其中外管由可燃性材料制成。
(4).(1)项所述的排气过滤器,其中第一保持管和第二保持管由可燃性材料制成。
(5).(1)项所述的排气过滤器,其中第一保持管和第二保持管由不可燃性材料制成。
(6).(1)项所述的排气过滤器,其中中央关闭式过滤器单元的隔离板的直径比中央开放式过滤器单元的环形隔离板的开口的直径大。
(7).(1)项所述的排气过滤器,其中中央关闭式过滤器单元的隔离板通过在保持管中心连接的多个可燃性撑杆支撑。
(8).(1)项所述的排气过滤器,其中多个通孔周边地靠近中央关闭式过滤器单元的隔离板中的保持管形成。
(9).(1)项所述的排气过滤器,其中多个切口从中央关闭式过滤器单元的隔离板的外周长形成。
(10).(1)项所述的排气过滤器,其中第一可燃性纤维和第二可燃性纤维包括剑麻纤维。
(11).(1)项所述的排气过滤器,其中当保持管布置为弯曲位置时在相邻保持管之间的缺口被可燃性纤维包埋。
附图说明
本发明的这些特征和和优点从以下的详细说明并结合附图变得显而易见,其中:
图1是本发明的排气过滤器的实施方案的垂直截面图;
图2是沿图1中的II-II线的垂直截面图,以表明中央关闭式过滤器单元;
图3是沿图2中的III-III线的垂直截面图,以表明中央开放式过滤器单元;
图4是隔离板的其它实施方案的正视图;
图5是隔离板的另一实施方案的正视图;和
图6是过滤器的另一实施方案的垂直截面图。
具体实施方式
在图1中,外管10由非易燃性或易燃性材料组成。入口11与真空泵(非示出)的排气份连通,出口12对空气开放。
在图2中,中央关闭式过滤器单元20包括由不透气性可燃性材料如纸制成的短保持管21,其中直径较小的不透气性可燃性隔离板23由可燃性纤维22如剑麻纤维围绕,该纤维在燃烧时不生成有毒气体。
隔离板23通过固定在保持管21中的多个可燃性撑杆24而不使用粘着剂进行支撑。
如图3所示,中央开放式过滤器单元30由在短保持管31中的不透气性可燃性材料制成,短保持管由不透气性可燃性材料如纸制成。环形隔离板33具有直径略微小于隔离板23的外径的开口32。在燃烧时不生成有毒气体的可燃性纤维34如剑麻纤维布置在开口32的内部和周围。
图4表示密封板40,其中多个通孔41在周边上形成以构成直径较小的隔离板42。
图5表示密封板50,其中多个切口51由外周边形成以构成直径较小的隔离板52。
图6是那本发明的另一实施方案的垂直截面图。可燃性纤维65从在弯曲的外管60中布置的中央关闭式过滤器单元61和中央开放式过滤器单元62的保持管63,64的端面伸出。
上述仅仅涉及本发明的实施方案。本领域的技术人员可进行各种变化和修改而不脱离权利要求的范围。
Claims (11)
1.排气过滤器,包括:
外管,其具有连接到排出气体生成部分的入口和对空气开放的出口;
多个中央关闭式过滤器单元,其各自包括第一短保持管、在第一短保持管内的直径较小的不透气性可燃性隔离板、和围绕隔离板并且在保持管内燃烧时不生成有毒气体的第一可燃性纤维;和
多个中央开放式过滤器单元,其各自包括第二短保持管、在第二短保持管内的不透气性可燃性环形隔离板、和围绕环形隔离板并且在保持管内燃烧时不生成有毒气体的第二可燃性纤维,所述的多个中央关闭式过滤器单元和所述的多个中央开放式过滤器单元在外管中交替布置。
2.权利要求1所述的排气过滤器,其中外管由不可燃性材料制成。
3.权利要求1所述的排气过滤器,其中外管由可燃性材料制成。
4.权利要求1所述的排气过滤器,其中第一短保持管和第二短保持管由可燃性材料制成。
5.权利要求1所述的排气过滤器,其中第一短保持管和第二短保持管由不可燃性材料制成。
6.权利要求1所述的排气过滤器,其中中央关闭式过滤器单元的隔离板的直径比中央开放式过滤器单元的环形隔离板的开口的直径大。
7.权利要求1所述的排气过滤器,其中中央关闭式过滤器单元的隔离板通过在第一短保持管中心处连接的多个可燃性撑杆支撑。
8.权利要求1所述的排气过滤器,其中多个通孔在中央关闭式过滤器单元的隔离板中形成在所述隔离板的周边附近。
9.权利要求1所述的排气过滤器,其中多个切口从中央关闭式过滤器单元的隔离板的外周边形成。
10.权利要求1所述的排气过滤器,其中第一可燃性纤维和第二可燃性纤维包括剑麻纤维。
11.权利要求1所述的排气过滤器,其中当保持管布置为弯曲位置时在相邻保持管之间的缺口被可燃性纤维包埋。
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JP2006048502 | 2006-02-24 | ||
JP2006048502A JP4724018B2 (ja) | 2006-02-24 | 2006-02-24 | 放射線環境下における排気用フィルタ |
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CN101053725A CN101053725A (zh) | 2007-10-17 |
CN101053725B true CN101053725B (zh) | 2011-06-01 |
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US (1) | US7559966B2 (zh) |
EP (1) | EP1825898B1 (zh) |
JP (1) | JP4724018B2 (zh) |
CN (1) | CN101053725B (zh) |
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JP6156972B2 (ja) * | 2012-04-06 | 2017-07-05 | 株式会社日立国際電気 | 半導体装置の製造方法、基板処理装置、気化システムおよびミストフィルタ |
WO2013155090A1 (en) * | 2012-04-10 | 2013-10-17 | Tapgreet, Inc. | Greeting card distribution system |
US11832521B2 (en) | 2017-10-16 | 2023-11-28 | Akoustis, Inc. | Methods of forming group III-nitride single crystal piezoelectric thin films using ordered deposition and stress neutral template layers |
CN111359490B (zh) * | 2020-04-14 | 2022-06-28 | 长沙旭达汽车零部件有限公司 | 一种汽车喷漆颜料用搅拌装置 |
US20220288517A1 (en) * | 2021-03-11 | 2022-09-15 | JAPAN AIR DRYER SALE Co., Ltd. | Condensation device for compressed air |
CN113058342B (zh) * | 2021-04-13 | 2022-10-28 | 西安航空制动科技有限公司 | 一种便于在线实时清理的cvd炉过滤装置 |
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GB808806A (en) | 1954-11-15 | 1959-02-11 | Solomon Saunders | Improvements in filters for use in removing noxious gases and solid matter contained in the exhaust gases of internal combustion engines |
GB841945A (en) * | 1956-04-16 | 1960-07-20 | Cigarette Components Ltd | Improvements in and relating to processes for the production of filter material and to filter material produced by such processes |
GB1427707A (en) * | 1972-09-21 | 1976-03-10 | Hydrovane Compressor | Oil separators in conjunction with air compressors |
JPS58128120A (ja) * | 1981-12-28 | 1983-07-30 | Yoshimi Oshitari | 焼却による高性能空気濾過器の容積減縮方法 |
US5158585A (en) * | 1988-04-13 | 1992-10-27 | Hitachi, Ltd. | Compressor unit and separator therefor |
US5536286A (en) * | 1994-09-26 | 1996-07-16 | Freeman; Lewis G. | Vacuum valve filtering system |
JPH11210658A (ja) | 1998-01-22 | 1999-08-03 | Anest Iwata Corp | オイルフリー流体機械 |
JPH11248884A (ja) * | 1998-03-05 | 1999-09-17 | Mitsubishi Heavy Ind Ltd | ナトリウムミスト捕集用フィルタ |
US6143254A (en) * | 1998-11-20 | 2000-11-07 | Erven; Roger Joyce | Emissions reduction system & method therefor |
JP2000258591A (ja) * | 1999-03-08 | 2000-09-22 | Hitachi Ltd | 粒子捕捉装置 |
GB9925992D0 (en) * | 1999-11-04 | 2000-01-12 | Aerotech Engineering Ltd | Filter |
JP2001149721A (ja) * | 1999-11-29 | 2001-06-05 | Toyo Element Industry Co Ltd | フィルタエレメント及びその製造方法 |
US6576045B2 (en) * | 2001-09-10 | 2003-06-10 | Fleetguard, Inc. | Multi-stage diesel particulate collector system with combined processes of inertial impaction, virtual impaction, and filtration |
JP2004058002A (ja) * | 2002-07-31 | 2004-02-26 | Asahi Kasei Fibers Corp | 分別型円筒状フィルター |
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JP4724018B2 (ja) | 2011-07-13 |
US20070234692A1 (en) | 2007-10-11 |
EP1825898B1 (en) | 2009-09-09 |
CN101053725A (zh) | 2007-10-17 |
EP1825898A1 (en) | 2007-08-29 |
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