CN1327924C - 母子导向浮阀 - Google Patents
母子导向浮阀 Download PDFInfo
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- CN1327924C CN1327924C CNB2004100414164A CN200410041416A CN1327924C CN 1327924 C CN1327924 C CN 1327924C CN B2004100414164 A CNB2004100414164 A CN B2004100414164A CN 200410041416 A CN200410041416 A CN 200410041416A CN 1327924 C CN1327924 C CN 1327924C
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
- B01D3/18—Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
- B01D3/20—Bubble caps; Risers for vapour; Discharge pipes for liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
- B01D3/163—Plates with valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
- B01D3/18—Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
- B01D3/20—Bubble caps; Risers for vapour; Discharge pipes for liquid
- B01D3/205—Bubble caps
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7358—By float controlled valve
- Y10T137/7439—Float arm operated valve
- Y10T137/7446—With flow guide or restrictor
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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Abstract
一种母子导向浮阀，母阀(A)的阀盖为一个以长对角线为对称的四边形，长边的夹角指向溢流堰，母阀阀盖下至少有两个阀腿，前端阀腿(A-1)长于后端阀腿(A-2)，使母阀全开时，母阀的阀盖与阀孔板之间向着溢流堰张开一个2-10°的夹角，其特征是：母阀阀盖上有一个母阀阀孔(A-5)，母阀阀孔(A-5)上有子阀(B)，子阀为活动阀，子阀也为四边形，其四条边与母阀的四条边平行，子阀阀盖下至少有两个阀腿，子阀前端阀(B-1)腿等于或长于子阀后端阀腿(B-2)，使子阀(B)全开时，子阀阀盖与母阀阀盖之间向着溢流堰张开一个0-10°的夹角。本发明的母子导向浮阀操作弹性大、效率高、压降小。
Description
发明领域本发明涉及浮阀塔核心部件——浮阀。
背景技术
本发明人发明了导向浮阀塔板并于2002年申请了中国专利(专利号CN02112748.4)。该浮阀塔板与F1型浮阀塔板相比，阀片不易脱落和卡死，压降明显降低，能耗下降，处理量提高，分离效果提高。但在实践中发明人发现，该导向浮阀塔板的操作弹性还不够大，当气体流量较大时，该导向浮阀塔板能充分发挥其优越性，但当气体流量较小时，由于不能把所有的浮阀阀盖都打开，所以效果就不是很好。我国炼油装置处理能力受原油来源的影响变化幅度较大，因此需要分馏塔在较大气体负荷变化范围内能保持较高的分离效率。
发明内容
本发明是本发明人设计的导向浮阀(中国专利CN02112748.4)的一种改进。本发明的目的在于提供一种操作弹性大、效率高、压降小的母子导向浮阀。
本发明的技术方案如下：一种母子导向浮阀，母阀的阀盖为一个以长对角线为对称的四边形，长边的夹角指向溢流堰，母阀阀盖下至少有两个阀腿，前端阀腿长于后端阀腿，使母阀全开时，母阀的阀盖与阀孔板之间向着溢流堰张开一个2-10°的夹角，母阀阀盖上有一个母阀阀孔，母阀阀孔上有子阀，子阀为活动阀，子阀也为四边形，其四条边与母阀的四条边平行，子阀阀盖下至少有两个阀腿，子阀前端阀腿等于或长于子阀后端阀腿，使子阀全开时，子阀阀盖与母阀阀盖之间向着溢流堰张开一个0-10°的夹角。
上述的母子导向浮阀，母阀阀盖和子阀阀盖的四边形顶角为圆弧形，使母阀阀盖和子阀阀盖沿液流方向呈流线型。
上述的母子导向浮阀，子阀阀盖面积为母阀阀盖面积的30～60％。
上述的母子导向浮阀，在子阀后面的母阀阀盖上开有导向孔，导向孔上有导向板，导向板的导向与液流流向一致，从该导向孔喷出的向前气流，可以部分抵消从子阀缝隙喷出的向后气流，对液流产生更大的向前推动力，更好地降低液面梯度。
本发明所述的母子导向浮阀可以用各种金属材料制成，必要时亦可以用金属材料与非金属材料复合制成，以满足不同工况场合的需要。
本发明的母子导向浮阀具有如下优点：(1)当气速较小时，母阀静止在塔板上，子阀升起，此时的气液传质主要由子阀起作用；随气相负荷增加，子阀全开启，母阀亦受到足够多的压力提升而逐渐开启，进入工作状态。此时，上升气相分别从母、子阀片升起的环隙间进入液层。这样可以有效和较大范围地调节塔板开孔率和阀孔气速，因而具有较大的操作弹性。而且在低气速下仍保持高效率，且随着通量的增加，效率保持基本不变。
(2)母子导向浮阀提供了极大的气流通道以及气相和液相的接触面积，使得塔板的处理量和效率都大幅度提高。
(3)子浮阀为根据母阀形状特别设计的对称四边形，其折线侧边与母浮阀的折线侧边保持平行，这样能够均匀分割母浮阀上部的传质空间，使气体分散更加细密、均匀，气液接触充分。
(4)母、子浮阀都为对称四边形，对液流具有良好的导向作用，推动液体前进，从而有效消除液面梯度，减小液体的返混程度。
(5)在子阀后面的母阀阀盖上设有导向孔，从该导向孔喷出的向前气流，可以部分抵消从子阀缝隙喷出的向后气流，对液流产生更大的向前推动力。
(6)母子浮阀前端阀腿长于后端阀腿，使得阀盖全开时，阀盖与阀孔板水平面之间呈锐角，于是相对液流方向而言，与之同方向气流量将大于逆向气流量，整体效果是推动液体向前运动，有效消除了板上液面梯度。
附图说明
图1为母子导向浮阀立体示意图；图2为母子导向浮的阀母、子阀全开状态主视剖面示意图。
图中：A——母阀 B——子阀A-1——母阀前阀腿 B-1——子阀前阀腿
A-2——母阀后阀腿 B-2——子阀后阀腿A-3——母阀阀脚 B-3——子阀阀脚A-4——母阀起始定距片 A-5——母阀阀孔A-6——导向孔具体实施方式以下通过实施例进一步说明本发明。
实施例一：乙醇-水精馏塔Φ1200mm，共有36层塔板，开孔率11.5％，原塔板全部为F1型浮阀。将全部塔板改为本发明的母子导向浮阀塔板。母阀阀盖长100毫米，前端长65mm，后端长35mm，最大宽度45mm，阀盖上导向孔A-6为舌形，高2毫米。前阀腿A-1，宽为8毫米，长为16毫米，后阀腿A-2，宽为12毫米长为13毫米。子阀为对称四边形浮阀，阀片的长度40mm，前端长45mm，后端长15mm，最大宽度为20mm。前阀腿，宽度为5mm，长度为7mm；后阀腿宽度为5mm，长度为6mm。改造中保留了原塔板固定件，只更换了塔板。改造后在处理量34.7t/d及70.0t/d情况下进行了生产标定。从标定结果得出，使用本发明的母子导向浮阀后，乙醇纯度由94.1％提高至94.9％。产品质量进一步改善，说明母子导向浮阀的板效率比F1型浮阀高。从生产实践看，处理量在30t/d～90t/d均能平稳操作，产品质量合格，达到了技术改造的目的。说明本发明的母子导向浮阀不但生产能力提高，而且操作弹性也增大。
实施例二：乙酸-水精馏系统，原为普通筛板塔盘。设备投入运行后一直不正常，主要表现在生产负荷偏低，只能达到原设计负荷的90％(原设计最大处理量为250t/d)，而且工况和负荷稍有波动立即出现雾沫夹带，经过多次观察、调整，反复计算后认为是因为气体穿孔速度过大，导致塔板效率降低。为提高这套设备的生产能力，采用本发明专利。原精馏塔Φ1600mm，共有88层塔板，开孔率12％。将全部塔板改为本发明的母子导向浮阀塔板。母阀阀盖长120毫米，前端长75mm，后端长45mm，最大宽度50mm，阀盖上导向孔A-6为舌形，高3毫米。前阀腿A-1，宽为8毫米，长为16毫米，后阀腿A-2，宽为12毫米长为13毫米。子阀阀盖的长度80mm，前端长55mm，后端长25mm，最大宽度为20mm。前阀腿，宽度为5mm，长度为7mm；后阀腿宽度为5mm，长度为6mm。。投入运行后，塔板最大负荷360t/d，最小负荷100t/d，生产负荷大幅度波动时仍能平稳运行。
Claims (4)
1.一种母子导向浮阀，母阀(A)的阀盖为一个以长对角线为对称的四边形，长边的夹角指向溢流堰，母阀阀盖下至少有两个阀腿，前端阀腿(A-1)长于后端阀腿(A-2)，使母阀全开时，母阀的阀盖与阀孔板之间向着溢流堰张开一个2-10°的夹角，其特征是：母阀阀盖上有一个母阀阀孔(A-5)，母阀阀孔(A-5)上有子阀(B)，子阀为活动阀，子阀也为四边形，其四条边与母阀的四条边平行，子阀阀盖下至少有两个阀腿，子阀前端阀(B-1)腿等于或长于子阀后端阀腿(B-2)，使子阀(B)全开时，子阀阀盖与母阀阀盖之间向着溢流堰张开一个0-10°的夹角。
2.根据权利要求1所述的母子导向浮阀，其特征是：母阀阀盖和子阀阀盖的四边形顶角为圆弧形，使母阀阀盖和子阀阀盖沿液流方向呈流线型。
3.根据权利要求1所述的母子导向浮阀，其特征是：子阀阀盖面积为母阀阀盖面积的30～60％。
4.根据权利要求1所述的母子导向浮阀，其特征是：在子阀后面的母阀阀盖上开有导向孔(A-6)，导向孔(A-6)上有导向板。
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| CNB2004100414164A CN1327924C (zh) | 2004-07-19 | 2004-07-19 | 母子导向浮阀 |
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| CNB2004100414164A CN1327924C (zh) | 2004-07-19 | 2004-07-19 | 母子导向浮阀 |
| EP20050766547 EP1785176B1 (en) | 2004-07-19 | 2005-07-11 | A parent-subsidary guide float valve |
| AT05766547T AT548091T (de) | 2004-07-19 | 2005-07-11 | Haupt/neben-führungsschwimmerventil |
| PCT/CN2005/001012 WO2006007783A1 (fr) | 2004-07-19 | 2005-07-11 | Robinet a flotteur a plaque de guidage auxiliaire parental |
| US11/571,941 US8006716B2 (en) | 2004-07-19 | 2005-07-11 | Parent-subsidiary guide float valve |
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| CN1327924C true CN1327924C (zh) | 2007-07-25 |
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| US (1) | US8006716B2 (zh) |
| EP (1) | EP1785176B1 (zh) |
| CN (1) | CN1327924C (zh) |
| AT (1) | AT548091T (zh) |
| WO (1) | WO2006007783A1 (zh) |
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| CN100363077C (zh) * | 2005-08-24 | 2008-01-23 | 天津大学 | 立体浮阀体 |
| US7540476B2 (en) * | 2006-07-18 | 2009-06-02 | Sulzer Chemtech Ag | Valve for a contact tray |
| US8540218B2 (en) | 2007-04-27 | 2013-09-24 | Gtc Technology Us Llc | Fluid dispersion unit assembly and method |
| US8517354B1 (en) | 2008-03-20 | 2013-08-27 | Gtc Technology Us Llc | Fluid dispersion unit with directional component vector |
| US8517352B1 (en) | 2008-04-04 | 2013-08-27 | Gtc Technology Us Llc | Liquid distributor |
| US9463397B2 (en) | 2008-04-04 | 2016-10-11 | Gtc Technology Us Llc | System and method for liquid distribution |
| US8480062B2 (en) * | 2009-05-15 | 2013-07-09 | Gtc Technology Us, Llc | Activated hinge-joint |
| US9199206B2 (en) * | 2010-05-11 | 2015-12-01 | Sulzer Chemtech Ag | Contact tray for a mass transfer column |
| US8678357B2 (en) | 2010-05-17 | 2014-03-25 | Gtc Technology Us, Llc | Fluid contactor-diffuser tray assembly |
| US9072986B2 (en) | 2011-02-23 | 2015-07-07 | Gtc Technology Us Llc | Method and apparatus for securing fractionation trays |
| US9597650B2 (en) | 2011-04-18 | 2017-03-21 | Gtc Technology Us Llc | System for improved reactant mixing and distribution |
| CN102861452B (zh) * | 2011-07-06 | 2016-06-29 | 北京先锋创新科技发展有限公司 | 导向筛板浮阀塔 |
| CN103920815B (zh) * | 2014-04-23 | 2016-08-24 | 无锡市华诚石化设备有限责任公司 | 一种圆形浮阀的连续冲压模具及冲压工艺 |
| CN104941233B (zh) * | 2015-06-29 | 2016-09-21 | 苏州市科迪石化工程有限公司 | 舌型分流阻尼浮阀塔盘 |
| MX2018000232A (es) * | 2015-07-08 | 2018-03-08 | Koch Glitsch Lp | Bandeja de valvula de contacto para una columna de transferencia de masa. |
| US9981235B2 (en) | 2016-01-28 | 2018-05-29 | Woven Metal Products, Inc. | Tray deck orifice device and methods of repairing a tray deck |
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- 2005-07-11 AT AT05766547T patent/AT548091T/de unknown
- 2005-07-11 EP EP20050766547 patent/EP1785176B1/en not_active Not-in-force
- 2005-07-11 US US11/571,941 patent/US8006716B2/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1597037A (zh) | 2005-03-23 |
| US8006716B2 (en) | 2011-08-30 |
| US20070227595A1 (en) | 2007-10-04 |
| EP1785176B1 (en) | 2012-03-07 |
| EP1785176A4 (en) | 2009-07-22 |
| AT548091T (de) | 2012-03-15 |
| WO2006007783A1 (fr) | 2006-01-26 |
| EP1785176A1 (en) | 2007-05-16 |
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