CN103991835A - 降低油轮挥发性有机化合物的系统及方法 - Google Patents
降低油轮挥发性有机化合物的系统及方法 Download PDFInfo
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- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
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Abstract
本发明是有关于一种用于防止在原油装载管上端部分形成流体空穴的降低油轮挥发性有机化合物的系统及方法,包括:供应管,水平安装于油轮储油罐的上部,一端连接于陆上的储油罐;装载管,沿竖直方向连接于所述供应管的底面,竖直贯通油轮的储油罐并延伸至其下部;分配管,水平连接于所述装载管的下端;压力控制手段,安装于所述装载管的下端部分内。
Description
本发明是申请号200910136477.1,发明名称为“降低油轮挥发性有机化合物的系统及方法”的申请案的分案申请,原始母案的申请日为2009年5月11日。
技术领域
本发明涉及一种降低油轮挥发性有机化合物的系统及方法,特别是涉及一种可在减少油轮在装载原油过程中发生的挥发性有机化合物的降低油轮挥发性有机化合物的系统及方法。
背景技术
一般而言,原油(Crude Oil)在生产地开采后并装载于油轮后,经远距离运输到目的地。
在以往的油轮中,在把原油从陆上储油罐装载到油轮储油罐的过程中,发生大量的挥发性有机化合物(Volatile Organic Compounds,VOC)。
为了从陆上储油罐向油轮储油罐供应原油,在油轮的上部,即油轮储油罐的上部,水平安装着一端连接于陆上储油罐的供应管。为了把从陆上储油罐通过供应管供应的原油装载到油轮储油罐内,在供应管的底面,向竖直方向连接着装载管,装载管竖直贯通油轮储油罐,延伸至油轮储油罐的下部。为了把通过装载管装载到油轮储油罐内的原油分配到油轮的储油罐内,在装载管的下端安装着分配管。
从水平的供应管沿水平方向供应的原油在与竖直的装载管交汇的部分,即在装载管的上部部分突然竖直落下,由于原油流速增加而引起压力过度下降,在装载管的上端部分产生流体空穴(flow cavitation)。即,在装载管内,当流体的静态压力小于该流体的蒸汽压时,就会产生流体空穴,当小于饱和压力时,发生流体蒸发,因此,原油蒸发产生挥发性有机化合物。
这样产生的挥发性有机化合物被排放到大气中或重新送往陆上储油罐。
如果挥发性有机化合物排放到大气中,将引起臭氧层破坏等严重的环境问题。另外,即使挥发性有机化合物重新送往陆上储油罐,也要求用于处理挥发性有机化合物的设施和费用。
由此可见,上述现有的从陆上储油罐向油轮储油罐供应原油在产品结构、制造方法与使用上,显然仍存在有不便与缺陷,而亟待加以进一步改进。为了解决上述存在的问题,相关厂商莫不费尽心思来谋求解决之道,但长久以来一直未见适用的设计被发展完成,而一般产品及方法又没有适切的结构及方法能够解决上述问题,此显然是相关业者急欲解决的问题。因此如何能创设一种新的降低油轮挥发性有机化合物的系统及方法,实属当前重要研发课题之一,亦成为当前业界极需改进的目标。
发明内容
本发明的目的在于,克服现有的从陆上储油罐向油轮储油罐供应原油存在的缺陷,而提供一种新的降低油轮挥发性有机化合物的系统及方法,所要解决的技术问题是使其防止在原油装载管上端部分形成流体空穴以降低油轮挥发性有机化合物,非常适于实用。
本发明的目的及解决其技术问题是采用以下技术方案来实现的。为达到上述目的,发明的降低油轮挥发性有机化合物的系统包括:供应管,水平安装于油轮储油罐的上部,一端连接于陆上的储油罐;装载管,沿竖直方向连接于所述供应管的底面,竖直贯通油轮的储油罐并延伸至其下部;分配管,水平连接于所述装载管的下端;压力控制手段,安装于所述装载管的下端部内。
本发明的目的及解决其技术问题还采用以下的技术方案来实现。为达到上述目的,本发明的降低油轮挥发性有机化合物的方法是:通过水平安装于油轮储油罐上部且一端连接于陆上储油罐的供应管、沿竖直方向连接于所述供应管底面且竖直贯通油轮储油罐并延伸至其下部的装载管、水平连接于所述装载管下端的分配管,从陆上储油罐向油轮储油罐内供应和装载原油,并控制所述装载管内的压力,使之保持在原油蒸汽压以上。
本发明与现有技术相比具有明显的优点和有益效果。借由上述技术方案,本发明降低油轮挥发性有机化合物的系统及方法至少具有下列优点及有益效果:在本发明中,在装载管的下端部分控制装载管内的压力,使之保持在原油蒸汽压以上。因此,从水平供应管水平供应的原油在与竖直装载管交汇部分,即,在装载管的上端部分突然竖直落下,即使原油流速增加,也不会在装载管上端部分产生流体空穴,即,在装载管内,流体的静态压力大于流体的蒸汽压后,不会发生流体空穴,因此,原油不会在装载管上端部分蒸发,具有不产生挥发性有机化合物的效果。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,而可依照说明书的内容予以实施,并且为了让本发明的上述和其他目的、特征和优点能够更明显易懂,以下特举较佳实施例,并配合附图,详细说明如下。
附图说明
图1是本发明实施例的降低油轮挥发性有机化合物的系统的简要构成示意图。
具体实施方式
下面参照附图,详细说明本发明的实施例。
图1是本发明实施例的降低油轮挥发性有机化合物的系统的简要构成示意图。
如图1所示,在油轮的上部,即在油轮储油罐1的上部水平安装着供应管2。供应管2的一端连接于陆上储油罐,从陆上储油罐向油轮供应原油。
另外,在供应管2底面,沿竖直方向连接着装载管3。装载管3竖直贯通油轮储油罐1,延伸至油轮储油罐1下部,将从陆上储油罐通过供应管2供应的原油装载到油轮储油罐1。
另外,在装载管3下端安装着分配管4。分配管4将通过装载管3装载到油轮储油罐1内的原油分配到油轮的储油罐1内,分配管4上安装着分配阀5。
而且,在装载管3的下端部分内安装着压力控制阀6。压力控制阀6最好是防空化阀(anti-cavitation valve)。防空化阀由普通安全阀和止回阀组合构成,这是阀门连接技术领域所公知的技术,故此在本说明书中不对此详细说明。
在压力控制阀6上,连接着测量装载管3上端部分压力的压力传递仪7。压力控制阀6根据压力传递仪7所传递的装载管3上端部分压力,控制装载管3内的压力,使之保持在原油蒸汽压以上。
在本发明中,压力控制阀6在装载管3下端部分控制装载管3内的压力,使之保持在原油蒸汽压以上,因此,从水平供应管2沿水平方向供应的原油在与竖直的装载管3交汇的部分,即在装载管3上端部分突然竖直落下,即使原油流速增加,在装载管3上端部分也不会产生流体空穴。即,在装载管3内,流体的静态压力大于流体蒸汽压后,不会产生流体空穴,在装载管3上端部分,原油不会蒸发,不会产生挥发性有机化合物。
以上所述,仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,虽然本发明已以较佳实施例揭露如上,然而并非用以限定本发明,任何熟悉本专业的技术人员,在不脱离本发明技术方案范围内,当可利用上述揭示的方法及技术内容作出些许的更动或修饰为等同变化的等效实施例,但凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。
Claims (6)
1.一种降低油轮挥发性有机化合物的系统,其特征在于其包括:
供应管,水平安装于油轮储油罐的上部,一端连接于陆上储油罐;
装载管,沿竖直方向连接于所述供应管的底面,竖直贯通该油轮储油罐并延伸至该油轮储油罐的下部;
分配管,水平连接于所述装载管的下端;
压力控制手段,安装于所述装载管的下端部内。
2.根据权利要求1所述的降低油轮挥发性有机化合物的系统,其特征在于:
还包括一个压力传递仪,测量所述装载管上端部分的压力并传递给所述压力控制手段。
3.根据权利要求1或2所述的降低油轮挥发性有机化合物的系统,其特征在于:
所述压力控制手段为防空化阀。
4.一种降低油轮挥发性有机化合物的方法,其特征在于:
通过水平安装于油轮储油罐的上部且一端连接于陆上储油罐的供应管、沿竖直方向连接于所述供应管的底面且竖直贯通油轮储油罐并延伸至油轮储油罐下部的装载管、水平连接于所述装载管下端的分配管,从陆上储油罐向油轮储油罐内供应和装载原油,并控制所述装载管内的压力,使所述装载管内的压力保持在原油蒸汽压以上。
5.根据权利要求4所述的降低油轮挥发性有机化合物的方法,其特征在于:
在所述装载管的下端部分控制所述装载管内的压力。
6.根据权利要求4或5所述的降低油轮挥发性有机化合物的方法,其特征在于:
测量所述装载管上端部分的压力,根据测量的压力,控制所述装载管内的压力。
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- 2009-05-11 CN CN200910136477.1A patent/CN101628703B/zh active Active
- 2009-05-11 CN CN201410136411.3A patent/CN103991835A/zh active Pending
- 2009-07-15 US US13/003,866 patent/US8561634B2/en active Active
- 2009-07-15 WO PCT/KR2009/003880 patent/WO2010008194A2/ko active Application Filing
- 2009-07-15 JP JP2011517360A patent/JP5520943B2/ja active Active
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CN1599694A (zh) * | 2001-12-06 | 2005-03-23 | 克努森Oas海运As | 用于装料柱的方法和设备 |
Also Published As
Publication number | Publication date |
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JP2011527265A (ja) | 2011-10-27 |
WO2010008194A3 (ko) | 2010-04-22 |
EP2305552A2 (en) | 2011-04-06 |
EP2305552B1 (en) | 2014-09-24 |
KR20090123742A (ko) | 2009-12-02 |
CN101628703B (zh) | 2014-05-07 |
JP5520943B2 (ja) | 2014-06-11 |
EP2305552A4 (en) | 2013-05-01 |
CN101628703A (zh) | 2010-01-20 |
JP2013209091A (ja) | 2013-10-10 |
JP5844857B2 (ja) | 2016-01-20 |
US20110108129A1 (en) | 2011-05-12 |
US8561634B2 (en) | 2013-10-22 |
WO2010008194A2 (ko) | 2010-01-21 |
KR101012643B1 (ko) | 2011-02-09 |
JP5676684B2 (ja) | 2015-02-25 |
JP2014221637A (ja) | 2014-11-27 |
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