WO2022156093A1 - 一种海底真空管道排水气结构及排水气方法 - Google Patents

一种海底真空管道排水气结构及排水气方法 Download PDF

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Publication number
WO2022156093A1
WO2022156093A1 PCT/CN2021/092530 CN2021092530W WO2022156093A1 WO 2022156093 A1 WO2022156093 A1 WO 2022156093A1 CN 2021092530 W CN2021092530 W CN 2021092530W WO 2022156093 A1 WO2022156093 A1 WO 2022156093A1
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way valve
drainage
pipeline
vacuum pipeline
subsea
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PCT/CN2021/092530
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English (en)
French (fr)
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张耀平
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西京学院
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Publication of WO2022156093A1 publication Critical patent/WO2022156093A1/zh

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/063Tunnels submerged into, or built in, open water
    • E02D29/073Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench

Definitions

  • the invention belongs to the technical field of subsea vacuum pipeline transportation and marine engineering, and particularly relates to a subsea vacuum pipeline drainage structure and a gas drainage method.
  • the basic form of the submarine vacuum pipeline is to build a fixed pier on the seabed, then through the underwater construction method, the vacuum pipeline pipe section is erected on the pier to the required accuracy, and then all the pipelines are fixedly connected by the underwater sealing connection method.
  • a feasible method for laying a submarine vacuum pipeline is to keep the two ends of the pipe section open when the pipeline is dropped into the water from the sea surface, and seawater is allowed to enter the pipeline.
  • Each pipe section is sunk to the subsea installation position, and after docking, fixing and sealing, the pipe is filled with seawater.
  • all seawater in the pipeline needs to be drained.
  • water can be pumped from the bank openings at both ends of the pipeline, as shown in Figure 1.
  • the present invention provides a gas drainage structure and a gas drainage method for a submarine vacuum pipeline, which can discharge the seawater and gas in the submarine vacuum pipeline economically and efficiently.
  • the one-way valve assembly includes a first one-way valve and a second one-way valve arranged in sequence, the inlet of the first one-way valve is connected to the sump, and the outlet of the second one-way valve is connected to the sump.
  • the drain/air pipe and the drain pump are arranged between the first one-way valve and the second one-way valve.
  • a bypass pipeline is communicated between the upstream pipeline of the first one-way valve and the downstream pipeline of the second one-way valve, the bypass pipeline is provided with a third one-way valve, and the third one-way valve is arranged in the bypass pipeline.
  • the outlet of the one-way valve is connected to the drain/air pipe.
  • the sump is a vertically arranged pipeline, the top of the sump is connected to the bottom of the submarine vacuum pipeline, the bottom of the sump is closed, and the side of the sump close to the bottom is provided with an opening, The opening is piped to the one-way valve assembly.
  • the submarine vacuum pipeline is fixedly supported on a plurality of pipe pier pile foundations fixedly arranged on the seabed, and the bottom of the water collection tank is supported on the pipe pier pile foundation.
  • the drainage pump is electrically connected with a vacuum terminal, and the vacuum terminal is electrically connected to the power supply of the work boat or the offshore platform.
  • Step 1 Park the operation boat on the sea surface where the water collection tank is located, and fix the upper end of the drainage/gas pipe to the operation boat, or fix the upper end of the drainage/gas pipe to the offshore platform, and the nozzle of the drainage/gas pipe faces the sea surface;
  • Step 4 After vacuuming, close the one-way valve assembly, and check the tightness of the subsea vacuum pipeline and water collection tank. If the tightness meets the requirements, remove the drain/gas pipe, drain pump and vacuum pump, and permanently close the one-way valve assembly.
  • the two ends are high in the middle and the middle is low, a water collecting tank is arranged at the bottom of the pipeline at the lowest point of the submarine pipeline line, and a check valve assembly is arranged outside the bottom of the water collecting tank.
  • the drain pump and drain/gas line Connect the drain pump and drain/gas line to pump out the internal seawater for the newly installed subsea vacuum pipeline, thus avoiding the disadvantage of requiring long drainpipes for pumping at both ends onshore, minimizing the drainpipe length and drainage path;
  • the sump is located in the subsea vacuum pipeline line At the lowest point, during the drainage process, the seawater in the pipeline flows to the sump under the action of gravity, which can greatly reduce the power consumption required for drainage, reduce the time required for drainage, and improve drainage efficiency;
  • the drainage/trachea can be connected to a vacuum pump, namely It can vacuumize the submarine vacuum pipeline, which is convenient to operate, has dual functions of drainage and exhaust, simple structure, simple operation, economical and efficient.
  • the one-way valve assembly includes a first one-way valve and a second one-way valve
  • the drain pump is arranged between the first one-way valve and the second one-way valve
  • the upstream pipeline of the first one-way valve is connected to the second one-way valve.
  • a bypass pipeline is connected between the downstream pipelines of the valve, and the bypass pipeline is provided with a third one-way valve, so that during the vacuuming operation, the first one-way valve and the second one-way valve can be closed first, and the third one-way valve can be opened.
  • One-way valve for vacuuming operation so that vacuuming can be started without first removing the drain pump, which is convenient for operation.
  • the bottom of the sump is hemispherical, which facilitates the collection of seawater in the submarine vacuum pipeline to flow into the sump, and flows out from the bottom opening of the hemispherical shape, ensuring complete discharge of seawater.
  • Fig. 1 is the arrangement schematic diagram of subsea vacuum pipeline
  • Fig. 2 is the schematic diagram of the subsea vacuum pipeline drainage structure of the present invention.
  • FIG. 3 is a cross-sectional view of the subsea vacuum pipeline drainage structure of the present invention, wherein only the first one-way valve is provided, and the drainage pump and the drainage/air pipe need to be removed after the pumping is completed, and the operation on the sea surface is carried out by a working boat during pumping;
  • FIG. 4 is a partial schematic diagram 1 of the subsea vacuum pipeline drainage structure of the present invention, wherein only the first one-way valve is provided, and the drainage pump and the drainage/air pipe need to be removed after the pumping is completed;
  • FIG. 5 is a schematic diagram of the subsea vacuum pipeline drainage structure of the present invention when the drainage is completed, the drainage pump is removed, and the exhaust and vacuuming are started;
  • Fig. 6 is the partial schematic diagram 2 of the subsea vacuum pipeline drainage structure of the present invention, wherein, the drainage pump has been removed and the one-way valve is in an open state;
  • FIG. 7 is a partial schematic diagram 3 of the subsea vacuum pipeline drainage structure of the present invention, wherein a first one-way valve and a second one-way valve are provided, as well as a bypass exhaust pipeline and a third one-way valve, the first one-way valve and the third one-way valve are provided.
  • the second one-way valve is in the open state
  • the third one-way valve is in the closed state;
  • FIG. 8 is a partial schematic diagram 4 of the subsea vacuum pipeline drainage structure of the present invention, wherein the first one-way valve and the second one-way valve are in a closed state, and the third one-way valve is in an open state;
  • FIG. 9 is a partial schematic diagram 5 of the subsea vacuum pipeline drainage structure of the present invention, wherein the drainage pump has been removed, the first one-way valve and the second one-way valve are in a closed state, and the third one-way valve is in an open state;
  • Fig. 10 is the partial schematic diagram 6 of the subsea vacuum pipeline drainage structure of the present invention, wherein, the bottom of the sump is hemispherical;
  • Fig. 11 is the partial schematic diagram 7 of the subsea vacuum pipeline drainage structure of the present invention, wherein, the sump is arranged on the upper part of the subsea pier;
  • the embodiment of the present invention provides a subsea vacuum pipeline drainage structure, referring to FIG. 2 to FIG. 12 , which includes a water collection tank 2 arranged on the subsea vacuum pipeline 1 , and the water collection tank 2 is located below the lowest part of the subsea vacuum pipeline 1 and is connected to the subsea vacuum pipeline 1 .
  • the subsea vacuum pipeline 1 is connected, and the water collecting tank 2 is provided with a one-way valve assembly through the pipeline.
  • the one-way valve assembly is configured so that water or gas can only be discharged from the water collecting tank 2.
  • the one-way valve assembly is connected with a drain/gas pipe 5.
  • the upper end of the air pipe 5 extends to above the sea surface 9 and communicates with the outside world; the one-way valve assembly is also connected with a drainage pump 41, the outlet of the drainage pump 41 is connected with the drainage/air pipe 5, and the upper end of the drainage/air pipe 5 is also connected with a vacuum pump 42;
  • the embodiment also includes an offshore platform 11 correspondingly disposed at the lowest position of the working vessel 6 or the subsea vacuum pipeline 1 , and the upper end of the drainage/gas pipe 5 and the vacuum pump 42 are installed on the working vessel 6 or the offshore platform 11 .
  • a water collection tank 2 is set at the bottom of the pipeline at the lowest point of the submarine pipeline line, and a check valve assembly is set outside the bottom of the water collection tank 2, and then the drainage pump is connected.
  • the vacuum pump 42 can be connected to vacuum the submarine vacuum pipeline 1, which is convenient to operate, has dual functions of drainage and exhaust, simple structure, simple operation, and economical efficiency.
  • the one-way valve assembly of this embodiment includes a first one-way valve 31 , the outlet of the first one-way valve 31 is connected to the drain pump 41 , and the outlet of the drain pump 41 is connected to the drain/air pipe 5 . That is, only one first one-way valve 31 may be provided, and through the first one-way valve 31, the seawater 8 or gas can only flow out relative to the subsea vacuum pipeline 1 and cannot flow back.
  • the drainage pump 41 is connected to the water outlet end of the first one-way valve 31, and has good seawater corrosion resistance, and the lift configuration is determined according to the water depth of the sea area where it is located.
  • the drainage pump 41 is isolated from the seawater outside the pipeline, and is only used for pumping out the seawater 8 in the subsea vacuum pipeline 1, and external seawater cannot enter.
  • the first one-way valve 31 has dual functions of watertightness and airtightness, that is, it can also be used as an air valve during vacuuming; at the same time, the drainage/air pipe 5 is a flexible pipe with good pressure resistance, which can be used for drainage, as well as Used as an exhaust pipe for evacuation. After draining, remove the drain pump 41, connect the drain/gas pipe 5 to the first one-way valve 31, and connect the vacuum pump 42 to the sea surface end of the drain/gas pipe 5 to evacuate the subsea vacuum pipeline 1.
  • another one-way valve assembly of this embodiment includes a first one-way valve 31 and a second one-way valve 32 arranged in sequence.
  • the inlet of the first one-way valve 31 is connected to the water collection tank 2 , and the The outlet of the two one-way valves 32 is connected to the drain/air pipe 5, and the drain pump 41 is arranged between the first one-way valve 31 and the second one-way valve 32; the upstream pipeline of the first one-way valve 31 and the second one-way valve 32
  • a bypass pipeline is communicated between the downstream pipelines of the 2 , the bypass pipeline is provided with a third one-way valve 33 , and the outlet of the third one-way valve 33 is connected to the drainage/air pipe 5 .
  • the first one-way valve 31 and the second one-way valve 32 close the third one-way valve 33, and start the drainage pump 41 to drain water; during the vacuuming operation, see FIG. 8,
  • the first one-way valve 31 and the second one-way valve 32 can be closed first, the third one-way valve 33 can be opened, the vacuum pump 42 can be started, and the vacuuming operation can be performed.
  • the vacuuming operation referring to FIG. 9 , close the first one-way valve 31 and the second one-way valve 32 , after disassembling the drain pump 41 , open the third one-way valve 33 , start the vacuum pump 42 , and perform vacuuming Operation.
  • the sump 2 is a vertical pipeline, the top of the sump 2 is connected to the bottom of the submarine vacuum pipeline 1, the bottom of the sump 2 is closed, and the side of the sump 2 close to the bottom is provided with an opening , the opening is connected to the one-way valve assembly through the pipeline.
  • this embodiment provides another form of water collection tank 2 .
  • the bottom of the water collection tank 2 is hemispherical, and the lowest position of the hemisphere is provided with an opening, and the opening is connected to the one-way valve assembly through a pipeline. It is convenient for the seawater 8 in the subsea vacuum pipeline 1 to collect and flow into the sump 2, and flow out from the bottom opening of the hemispherical shape, ensuring that the seawater 8 is completely discharged.
  • the submarine vacuum pipeline 1 is fixedly supported on a plurality of pipe pier pile foundations 7 fixedly arranged on the seabed 10 , and the bottom of the water collection tank 2 is supported on the pipe pier pile foundation 7 .
  • the drainage structure of this embodiment that is, a sump 2, a one-way valve assembly, etc., is provided at each undulating position.
  • an offshore platform 11 can be set on the sea surface 9 corresponding to the sump 2 , and the offshore platform 11 is installed on the seabed 10 through a plurality of offshore platform pile foundations 71 .
  • the drainage pump 41 is electrically connected with a vacuum terminal, and the vacuum terminal is electrically connected to the power supply of the work boat 6 or the offshore platform 11 .
  • the drain pump 41 can also be directly installed inside the sump 2 .
  • the embodiment of the present invention also provides a method for draining air, which adopts the above-mentioned air-draining structure and includes the following steps:
  • Step 1 Moor the work boat 6 on the sea surface 9 where the sump 2 is located, fix the upper end of the drain/gas pipe 5 to the work boat 6, or fix the upper end of the drain/gas pipe 5 to the offshore platform 11, the drain/gas pipe 5
  • the nozzle faces the sea surface 9;
  • Step 2 start the drainage pump 41 to discharge the seawater 8 in the subsea vacuum pipeline 1;
  • Step 3 After the drainage is completed, close the one-way valve assembly, connect the vacuum pump 42, then open the one-way valve assembly, and start the vacuum pump 42 to evacuate the submarine vacuum pipeline 1;
  • Step 4 After vacuuming, close the one-way valve assembly, and check the tightness of the subsea vacuum pipeline 1 and the sump 2. If the tightness meets the requirements, remove the drain/air pipe 5, the drain pump 41 and the vacuum pump 42, and permanently close the one-way Valve assembly; if the tightness does not meet the requirements, carry out the sealing operation until it is satisfied. To check the tightness, construction personnel or installation robots can enter the subsea vacuum pipeline 1 from the onshore entrance, reach the position of the collection tank 2, and check and confirm the tightness.

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Abstract

本发明公开了一种海底真空管道排水气结构及排水气方法,能够经济、高效地排出海底真空管道中的海水和气体,排水气结构包括设置于海底真空管道的集水池,所述集水池位于海底真空管道的最低处下方,且与海底真空管道相连通,所述集水池通过管道设置有单向阀组件,所述单向阀组件被配置为使水或气体仅能够从所述集水池排出,所述单向阀组件连接有排水/气管,所述排水/气管的上端延伸至海面以上与外界连通;所述单向阀组件还连接有排水泵,所述排水泵的出口与所述排水/气管连接,所述排水/气管的上端还连接有真空泵;还包括作业船或海底真空管道的最低处对应设置的海上平台,所述排水/气管的上端和所述真空泵安装于所述作业船或所述海上平台。

Description

一种海底真空管道排水气结构及排水气方法 技术领域
本发明属于海底真空管道交通以及海洋工程技术领域,具体涉及一种海底真空管道排水结构及排水气方法。
背景技术
真空管道交通除了可以在陆地上建设运行,还适合建设在海底。海底环境对真空管道具有特殊优越性,海水可以为真空管道降温、提供恒温环境,还可为管道提供均匀浮力,抵消管道自身重力作用,降低结构强度要求,减少工程费用。因此,海底真空管道可望成为跨海越洋的新型交通方式。
海底真空管道的基本形式为,在海床上修建固定墩台,然后通过水下施工方法,把真空管道管段按要求的精度架设在墩台上,再用水下密封连接方法把所有管道固定连接。
一种可行的海底真空管道铺设方法是,管道从海面下放落水时保持管段两端开口,管道内允许进入海水。各管段沉放到海底安装位置,对接、固定、密封后,管道内充满海水。在开始内部设备安装和抽真空之前,需要排出管道内的全部海水。按常规方法,可从管道两端岸上开口处开始进行抽水,如图1所示。
从地形水平高度变化看,海平面以下总低于陆地岸上,相应地,海底真空管道的线路纵断面必然是岸上两端高,中间海底段低。同时,海底真空管道距离较长,一般几十公里,甚至上百公里、上千公里。从两端用抽水泵抽水时,需要很长的排水管,且对水泵扬程要求较高,效率低、不经济。越到海底管道中部,排水越困难。
技术问题
为了解决现有技术中的问题,本发明提供了一种海底真空管道排水气结构及排水气方法,能够经济、高效地排出海底真空管道中的海水和气体。
技术解决方案
为了实现以上目的,本发明提供了一种海底真空管道排水气结构,包括设置于海底真空管道的集水池,所述集水池位于海底真空管道的最低处下方,且与海底真空管道相连通,所述集水池通过管道设置有单向阀组件,所述单向阀组件被配置为使水或气体仅能够从所述集水池排出,所述单向阀组件连接有排水/气管,所述排水/气管的上端延伸至海面以上与外界连通;所述单向阀组件还连接有排水泵,所述排水泵的出口与所述排水/气管连接,所述排水/气管的上端还连接有真空泵;还包括作业船或海底真空管道的最低处对应设置的海上平台,所述排水/气管的上端和所述真空泵安装于所述作业船或所述海上平台。
进一步地,所述单向阀组件包括第一单向阀,所述第一单向阀的出口连接所述排水泵,所述排水泵的出口连接所述排水/气管。
进一步地,所述单向阀组件包括依次设置的第一单向阀和第二单向阀,所述第一单向阀的入口连接所述集水池,所述第二单向阀的出口连接所述排水/气管,所述排水泵设置于所述第一单向阀和所述第二单向阀之间。
进一步地,所述第一单向阀的上游管道和所述第二单向阀的下游管道之间连通设置有旁路管道,所述旁路管道设置有第三单向阀,所述第三单向阀的出口连接至所述排水/气管。
进一步地,所述集水池呈竖直设置的管道,所述集水池的顶部与海底真空管道的底部对接连通,所述集水池的底部封闭,所述集水池的靠近底部的侧部设置开口,所述开口通过管道连接所述单向阀组件。
进一步地,所述集水池的底部呈半球形,半球形的最低位置设置开口,所述开口通过管道连接所述单向阀组件。
进一步地,所述海底真空管道固定支撑于多个固定设置于海床的管墩桩基,所述集水池的底部支撑于管墩桩基。
进一步地,所述海底真空管道具有多处起伏时,每个起伏位置设置所述排水结构。
进一步地,所述排水泵电连接有真空接线端子,所述真空接线端子电连接至所述作业船或所述海上平台的电源。
本发明还提供了一种采用上述的海底真空管道排水气结构的排水气方法,包括以下步骤:
步骤1:将作业船停泊在集水池所在位置的海面,将排水/气管的上端固定在作业船,或者将排水/气管的上端固定在海上平台,排水/气管的管口朝向海面;
步骤2:启动排水泵,排出海底真空管道中的海水;
步骤3:排水完毕,关闭单向阀组件,连接真空泵,然后打开单向阀组件,启动真空泵对海底真空管道进行抽真空;
步骤4:抽真空完毕,关闭单向阀组件,并检查海底真空管道和集水池的密封性,若密封性满足要求,拆除排水/气管、排水泵和真空泵,永久封闭单向阀组件。
有益效果
与现有技术相比,本发明根据海底真空管道线路延伸距离长,两端高中间低的特征,在海中管道线路最低处的管道底部设置集水池,集水池底部外设置单向阀组件,然后连接排水泵和排水/气管,为新安装的海底真空管道抽出内部海水,从而避免岸上两端抽水需要很长排水管的弊端,使排水管长度和排水路径最短化;集水池位于海底真空管道线路最低处,排水过程中,管道中的海水在重力作用下向集水池自流,可大幅度降低排水所需动力消耗,减少排水所需时间,提高排水效率;另外,排水/气管可以连接真空泵,即可对海底真空管道进行抽真空作业,方便操作,具有排水排气的双功能,结构简单,操作简便,经济高效。
进一步地,单向阀组件包括第一单向阀和第二单向阀,排水泵设置于第一单向阀和第二单向阀之间,第一单向阀的上游管道和第二单向阀的下游管道之间连通设置有旁路管道,旁路管道设置有第三单向阀,从而在抽真空作业时,可以先关闭第一单向阀和第二单向阀,打开第三单向阀,进行抽真空作业,从而无需先拆除排水泵即可开始抽真空,方便操作。
进一步地,集水池的底部呈半球形,便于海底真空管道内的海水汇集流入集水池,并从半球形的底部开口流出,保证了海水排出彻底。
附图说明
图1是海底真空管道的设置示意图;
图2是本发明的海底真空管道排水结构的示意图;
图3是本发明的海底真空管道排水结构的横断面图,其中,仅设置第一单向阀,抽水完毕后需要拆除排水泵和排水/气管,抽水时通过作业船进行海面上的作业;
图4是本发明的海底真空管道排水结构的局部示意图一,其中,仅设置第一单向阀,抽水完毕后需要拆除排水泵、排水/气管;
图5是本发明的海底真空管道排水结构在排水完毕,拆除了排水泵,开始排气抽真空时的示意图;
图6是本发明的海底真空管道排水结构的局部示意图二,其中,排水泵已经拆除,单向阀处于打开状态;
图7是本发明的海底真空管道排水结构的局部示意图三,其中,设置第一单向阀和第二单向阀,以及旁路排气管道和第三单向阀,第一单向阀和第二单向阀均处于打开状态,第三单向阀处于关闭状态;
图8是本发明的海底真空管道排水结构的局部示意图四,其中,第一单向阀和第二单向阀均处于关闭状态,第三单向阀处于打开状态;
图9是本发明的海底真空管道排水结构的局部示意图五,其中排水泵已经拆除,第一单向阀和第二单向阀均处于关闭状态,第三单向阀处于打开状态;
图10是本发明的海底真空管道排水结构的局部示意图六,其中,集水池底部呈半球形;
图11是本发明的海底真空管道排水结构的局部示意图七,其中,集水池设置于海底墩台的上部;
图12是本发明的海底真空管道排水结构在集水池所在位置处设置永久海上平台的示意图;
其中,1为海底真空管道;2为集水池;31为第一单向阀;32为第二单向阀;33为第三单向阀;41为排水泵;42为真空泵;5为排水/气管;6为作业船;7为管墩桩基;71为海上平台桩基础;8为海水;9为海面;10为海床;11为海上平台。
本发明的最佳实施方式
下面结合说明书附图和具体的实施例对本发明作进一步地解释说明,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本发明的实施方式
本发明实施例提供了一种海底真空管道排水气结构,参见图2至图12,其包括设置于海底真空管道1的集水池2,集水池2位于海底真空管道1的最低处下方,且与海底真空管道1相连通,集水池2通过管道设置有单向阀组件,单向阀组件被配置为使水或气体仅能够从集水池2排出,单向阀组件连接有排水/气管5,排水/气管5的上端延伸至海面9以上与外界连通;单向阀组件还连接有排水泵41,排水泵41的出口与排水/气管5连接,排水/气管5的上端还连接有真空泵42;本实施例还包括作业船6或海底真空管道1的最低处对应设置的海上平台11,排水/气管5的上端和真空泵42安装于作业船6或海上平台11。
本实施例根据海底真空管道1线路延伸距离长,两端高中间低的特征,在海中管道线路最低处的管道底部设置集水池2,集水池2底部外设置单向阀组件,然后连接排水泵41和排水/气管5,为新安装的海底真空管道1抽出内部海水8,从而避免岸上两端抽水需要很长排水管的弊端,使排水管长度和排水路径最短化;集水池2位于海底真空管道1线路最低处,排水过程中,管道中的海水8在重力作用下向集水池2自流,可大幅度降低排水所需动力消耗,减少排水所需时间,提高排水效率;另外,排水/气管5可以连接真空泵42,即可对海底真空管道1进行抽真空作业,方便操作,具有排水排气的双功能,结构简单,操作简便,经济高效。
参见图3至图6,本实施例的单向阀组件包括第一单向阀31,第一单向阀31的出口连接排水泵41,排水泵41的出口连接排水/气管5。即可以仅设置一个第一单向阀31,通过第一单向阀31能够使海水8或气体只能相对海底真空管道1向外流出,不能回流。排水泵41跟第一单向阀31的出水端相连,具有良好的抗海水腐蚀性能,扬程配置根据所处海域水深确定。该排水泵41跟管道外的海水隔离,只用于抽出海底真空管道1内的海水8,外部海水不能进入。第一单向阀31具有水密性和气密性双功能,即亦可作为抽真空时的气阀使用;同时,排水/气管5为抗压性能良好的柔性管,除了可作为排水用,还可用作抽真空的排气管。在排水完毕后,拆除排水泵41,把排水/气管5连接到第一单向阀31,在排水/气管5的海面端连接真空泵42,为海底真空管道1抽真空。
参见图7至图9,本实施例的另一种单向阀组件包括依次设置的第一单向阀31和第二单向阀32,第一单向阀31的入口连接集水池2,第二单向阀32的出口连接排水/气管5,排水泵41设置于第一单向阀31和第二单向阀32之间;第一单向阀31的上游管道和第二单向阀32的下游管道之间连通设置有旁路管道,旁路管道设置有第三单向阀33,第三单向阀33的出口连接至排水/气管5。排水作业时,参见图7,打开第一单向阀31和第二单向阀32,关闭第三单向阀33,启动排水泵41即可进行排水;在抽真空作业时,参见图8,可以先关闭第一单向阀31和第二单向阀32,打开第三单向阀33,启动真空泵42,进行抽真空作业,从而无需先拆除排水泵41即可开始抽真空,方便操作。当然,在抽真空作业时,也可以参见图9,关闭第一单向阀31和第二单向阀32,拆卸排水泵41后,打开第三单向阀33,启动真空泵42,进行抽真空作业。
参见图4和图6,集水池2呈竖直设置的管道,集水池2的顶部与海底真空管道1的底部对接连通,集水池2的底部封闭,集水池2的靠近底部的侧部设置开口,开口通过管道连接单向阀组件。
参见图10,本实施例提供了另一种集水池2形式,集水池2的底部呈半球形,半球形的最低位置设置开口,开口通过管道连接单向阀组件。便于海底真空管道1内的海水8汇集流入集水池2,并从半球形的底部开口流出,保证了海水8排出彻底。
参见图2和图11,海底真空管道1固定支撑于多个固定设置于海床10的管墩桩基7,集水池2的底部支撑于管墩桩基7。
本实施例对于线路较长,且有多处起伏的海底真空管道1时,每个起伏位置设置本实施例的排水结构,即集水池2、单向阀组件等。
参见图12,本实施例可以在集水池2对应的海面9设置海上平台11,海上平台11通过多个海上平台桩基础71安装在海床10。
本实施例中排水泵41电连接有真空接线端子,真空接线端子电连接至作业船6或海上平台11的电源。排水泵41还可以直接安装在集水池2的内部。
本发明实施例还提供了一种排水气方法,采用上述的排水气结构,包括以下步骤:
步骤1:将作业船6停泊在集水池2所在位置的海面9,将排水/气管5的上端固定在作业船6,或者将排水/气管5的上端固定在海上平台11,排水/气管5的管口朝向海面9;
步骤2:启动排水泵41,排出海底真空管道1中的海水8;
步骤3:排水完毕,关闭单向阀组件,连接真空泵42,然后打开单向阀组件,启动真空泵42对海底真空管道1进行抽真空;
步骤4:抽真空完毕,关闭单向阀组件,并检查海底真空管道1和集水池2的密封性,若密封性满足要求,拆除排水/气管5、排水泵41和真空泵42,永久封闭单向阀组件;若密封性不满足要求,进行密封作业直至满足。检查密闭性可以是施工人员或安装机器人从岸上入口进入海底真空管道1,到达集水池2位置,检查并确认密封性。
工业实用性
最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明实施例技术方案的范围。

Claims (10)

  1. 一种海底真空管道排水气结构,其特征在于,包括设置于海底真空管道(1)的集水池(2),所述集水池(2)位于海底真空管道(1)的最低处下方,且与海底真空管道(1)相连通,所述集水池(2)通过管道设置有单向阀组件,所述单向阀组件被配置为使水或气体仅能够从所述集水池(2)排出,所述单向阀组件连接有排水/气管(5),所述排水/气管(5)的上端延伸至海面(9)以上与外界连通;所述单向阀组件还连接有排水泵(41),所述排水泵(41)的出口与所述排水/气管(5)连接,所述排水/气管(5)的上端还连接有真空泵(42);还包括作业船(6)或海底真空管道(1)的最低处对应设置的海上平台(11),所述排水/气管(5)的上端和所述真空泵(42)安装于所述作业船(6)或所述海上平台(11)。
  2. 根据权利要求1所述的一种海底真空管道排水气结构,其特征在于,所述单向阀组件包括第一单向阀(31),所述第一单向阀(31)的出口连接所述排水泵(41),所述排水泵(41)的出口连接所述排水/气管(5)。
  3. 根据权利要求1所述的一种海底真空管道排水气结构,其特征在于,所述单向阀组件包括依次设置的第一单向阀(31)和第二单向阀(32),所述第一单向阀(31)的入口连接所述集水池(2),所述第二单向阀(32)的出口连接所述排水/气管(5),所述排水泵(41)设置于所述第一单向阀(31)和所述第二单向阀(32)之间。
  4. 根据权利要求3所述的一种海底真空管道排水气结构,其特征在于,所述第一单向阀(31)的上游管道和所述第二单向阀(32)的下游管道之间连通设置有旁路管道,所述旁路管道设置有第三单向阀(33),所述第三单向阀(33)的出口连接至所述排水/气管(5)。
  5. 根据权利要求1所述的一种海底真空管道排水气结构,其特征在于,所述集水池(2)呈竖直设置的管道,所述集水池(2)的顶部与海底真空管道(1)的底部对接连通,所述集水池(2)的底部封闭,所述集水池(2)的靠近底部的侧部设置开口,所述开口通过管道连接所述单向阀组件。
  6. 根据权利要求1所述的一种海底真空管道排水气结构,其特征在于,所述集水池(2)的底部呈半球形,半球形的最低位置设置开口,所述开口通过管道连接所述单向阀组件。
  7. 根据权利要求1所述的一种海底真空管道排水气结构,其特征在于,所述海底真空管道(1)固定支撑于多个固定设置于海床(10)的管墩桩基(7),所述集水池(2)的底部支撑于管墩桩基(7)。
  8. 根据权利要求1所述的一种海底真空管道排水气结构,其特征在于,所述海底真空管道(1)具有多处起伏时,每个起伏位置设置所述排水结构。
  9. 根据权利要求1所述的一种海底真空管道排水气结构,其特征在于,所述排水泵(41)电连接有真空接线端子,所述真空接线端子电连接至所述作业船(6)或所述海上平台(11)的电源。
  10. 一种采用权利要求1至9任一项所述的海底真空管道排水气结构的排水气方法,其特征在于,包括以下步骤:
    步骤1:将作业船(6)停泊在集水池(2)所在位置的海面(9),将排水/气管(5)的上端固定在作业船(6),或者将排水/气管(5)的上端固定在海上平台(11),排水/气管(5)的管口朝向海面(9);
    步骤2:启动排水泵(41),排出海底真空管道(1)中的海水(8);
    步骤3:排水完毕,关闭单向阀组件,连接真空泵(42),然后打开单向阀组件,启动真空泵(42)对海底真空管道(1)进行抽真空;
    步骤4:抽真空完毕,关闭单向阀组件,并检查海底真空管道(1)和集水池(2)的密封性,若密封性满足要求,拆除排水/气管(5)、排水泵(41)和真空泵(42),永久封闭单向阀组件。
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Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
CN112663673B (zh) * 2021-01-19 2022-03-29 西京学院 一种海底真空管道排水气结构及排水气方法
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005009235A (ja) * 2003-06-20 2005-01-13 Taisei Corp 水底トンネルの構築方法
KR20140124518A (ko) * 2013-04-17 2014-10-27 현대중공업 주식회사 해저 연약지반 배수공법
CN105113544A (zh) * 2015-06-29 2015-12-02 刘子忠 一种悬浮于水中的磁悬浮真空隧道运输方案
CN108216272A (zh) * 2017-08-10 2018-06-29 北京九州动脉隧道技术有限公司 一种水下管道运输系统及其架设方法
CN109537632A (zh) * 2019-01-29 2019-03-29 黄仕 一种海底隧道建设方法
CN111119210A (zh) * 2020-01-07 2020-05-08 广州地铁设计研究院股份有限公司 一种管廊的排水系统
CN111501950A (zh) * 2020-05-18 2020-08-07 焦作大学 一种地下管廊物流运输的排水系统
CN112663673A (zh) * 2021-01-19 2021-04-16 西京学院 一种海底真空管道排水气结构及排水气方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101549694B (zh) * 2008-03-31 2011-04-13 谢建新 亚真空管道运输系统及亚真空管道的制造方法
KR100921188B1 (ko) * 2009-04-15 2009-10-13 (주)대우건설 침매함 결합장치 및 결합방법
CN107700545B (zh) * 2017-09-01 2019-06-04 中交第一航务工程局有限公司 沉管隧道最终接头接合腔排水系统及排水方法
CN108860519B (zh) * 2018-05-31 2020-06-23 西京学院 一种基于海底真空管道交通的多功能海底基站

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005009235A (ja) * 2003-06-20 2005-01-13 Taisei Corp 水底トンネルの構築方法
KR20140124518A (ko) * 2013-04-17 2014-10-27 현대중공업 주식회사 해저 연약지반 배수공법
CN105113544A (zh) * 2015-06-29 2015-12-02 刘子忠 一种悬浮于水中的磁悬浮真空隧道运输方案
CN108216272A (zh) * 2017-08-10 2018-06-29 北京九州动脉隧道技术有限公司 一种水下管道运输系统及其架设方法
CN109537632A (zh) * 2019-01-29 2019-03-29 黄仕 一种海底隧道建设方法
CN111119210A (zh) * 2020-01-07 2020-05-08 广州地铁设计研究院股份有限公司 一种管廊的排水系统
CN111501950A (zh) * 2020-05-18 2020-08-07 焦作大学 一种地下管廊物流运输的排水系统
CN112663673A (zh) * 2021-01-19 2021-04-16 西京学院 一种海底真空管道排水气结构及排水气方法

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