WO2017016392A1 - 直流换流阀的组装方法 - Google Patents

直流换流阀的组装方法 Download PDF

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Publication number
WO2017016392A1
WO2017016392A1 PCT/CN2016/089944 CN2016089944W WO2017016392A1 WO 2017016392 A1 WO2017016392 A1 WO 2017016392A1 CN 2016089944 W CN2016089944 W CN 2016089944W WO 2017016392 A1 WO2017016392 A1 WO 2017016392A1
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WIPO (PCT)
Prior art keywords
lifting platform
valve
shield
valve layer
lifting
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PCT/CN2016/089944
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English (en)
French (fr)
Inventor
张翔
杨帆
白国兴
李钊
刘亮
史晓冬
Original Assignee
南京南瑞继保电气有限公司
南京南瑞继保工程技术有限公司
常州博瑞电力自动化设备有限公司
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Application filed by 南京南瑞继保电气有限公司, 南京南瑞继保工程技术有限公司, 常州博瑞电力自动化设备有限公司 filed Critical 南京南瑞继保电气有限公司
Priority to US15/747,764 priority Critical patent/US10632578B2/en
Priority to AU2016300492A priority patent/AU2016300492B2/en
Priority to JP2018524517A priority patent/JP6554610B2/ja
Priority to CA2992914A priority patent/CA2992914C/en
Priority to RU2018106134A priority patent/RU2691361C1/ru
Priority to BR112018001505-9A priority patent/BR112018001505B1/pt
Priority to MX2018001179A priority patent/MX2018001179A/es
Priority to KR1020187004517A priority patent/KR102018010B1/ko
Publication of WO2017016392A1 publication Critical patent/WO2017016392A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output

Definitions

  • the invention relates to the field of a DC converter valve, and in particular to a method for assembling a DC converter valve.
  • the thyristor converter valve tower used in conventional direct current transmission is generally suspended on the truss on the top of the valve hall, and the layers are connected by insulating rods or insulators.
  • the advantage of this fixing method is that it has good shock absorption effect.
  • the truss is high and the valve layer is heavier, and the insulator between the layers can only withstand the tensile force and cannot withstand the supporting force, it is impossible to suspend the entire valve tower after the ground assembly is completed, and it needs to be carried out at high altitude. Assembly has great difficulty.
  • the object of the present invention is to provide an assembly method of a DC converter valve which is easy to operate, uses less equipment, and has high safety and reliability, and is particularly suitable for a high voltage DC converter valve tower.
  • a method for assembling a DC converter valve which comprises the following steps:
  • Assembling the top shield lifting the top shield to a specified height by the lifting platform, and then fixing the top shield to the lower end of the insulator; the upper end of the suspension insulator is fixedly connected with the truss 1; the truss 1 is located in the valve hall top;
  • Assembling the valve layer lifting the valve layers to the designated position in the top-down order by the lifting platform; when the first valve layer is lifted to the designated position by the lifting platform, the first valve layer is suspended by the suspension insulator Connected to the top shield and suspended under the top shield; when the adjacent next valve layer is lifted to the designated position by the lifting platform, the next adjacent valve layer and the adjacent upper layer are suspended by the suspension insulator A valve layer is connected and suspended below the adjacent upper valve layer; the above steps are repeated until the lowermost valve layer is connected to the adjacent upper valve layer and suspended Hanging under the adjacent upper valve layer;
  • Assembling the bottom shield Raise the bottom shield to the specified height by the lifting platform, then connect and suspend the lowermost valve layer of the bottom shield under the bottom shield by hanging the insulator.
  • the area of the lifting platform is larger than the area of the top shield, the valve layer and the bottom shield respectively, and the required number of suspension insulators per valve layer can be placed at the same time, and can stand staff member.
  • the bottom of the lifting platform is provided with a roller; before each lifting of the lifting platform, the lifting platform is first translated to a suitable position on the ground, and then the top shielding cover, the valve layer or the lifting device is used. The bottom shield is placed on the lifting platform.
  • a suspension insulator is also placed on the lifting platform.
  • the top shield, the valve layer or the bottom shield is located at a center position of the lifting platform, and the hanging insulator is uniformly placed on the top shield, the valve layer or the bottom shield.
  • the hanging insulator is uniformly placed on the top shield, the valve layer or the bottom shield.
  • the lifting and lowering of the lifting platform is controlled by the suspension cable and the pulley 8.
  • the assembly method of the DC converter valve is characterized in that the method adopts a lifting platform with an area larger than the area of the shield cover or the valve layer, and the top shield cover and each of the tops are arranged in the order from the top to the bottom when the actual valve tower is suspended. After the valve layer and the bottom shield are lifted to the specified height, the top shield, the valve layer and the bottom shield are suspended and fixed by the suspension insulator.
  • the area of the lifting platform is larger than the area of the shield and the valve layer of the valve tower, and the required number of suspended insulators per valve layer can be placed at the same time, and at least four workers can stand.
  • the lifting platform when the lifting platform is used to lift the layers of the valve tower, only one shield cover or one valve layer is lifted at a time, and the order of lifting is sequentially performed from the top to the bottom when the valve tower is actually suspended.
  • the bottom of the lifting platform is provided with a roller, and after the lifting platform is translated to a suitable position on the ground before each lifting, the shielding cover or the valve layer is placed on the lifting platform by the lifting device, and the required suspension is suspended.
  • the insulator is placed on the lifting platform.
  • the shield or valve layer should be located at the center of the entire lifting platform, and the suspension insulators are evenly distributed around the shield or the valve layer.
  • the lifting platform when the lifting platform is raised to a specified height, the shield or valve layer and the suspension insulator are installed and fixed by a staff member, and the lifting and lowering is completed after completion. The platform is lowered to the ground for the next lift and installation.
  • the entire shield or valve layer is lifted into the air for suspension assembly.
  • the entire valve tower can be assembled only by lifting several times, and the efficiency is very high.
  • Figure 1 is a schematic view of the suspended ceiling shield
  • Figure 2 is a schematic view of the suspension of the first valve layer
  • Figure 3 is a 45° angle view of the suspended ceiling shield
  • the truss 1 is located at the top of the valve hall, and the insulator 7 for suspending the entire valve tower is suspended below the truss 1.
  • the top shield 2 is installed, first, after the lifting platform 6 is moved to a suitable position by the bottom roller on the ground, the top shield 2 is placed on the lifting platform 6 by the lifting device, and then the lifting platform 6 is moved to the suspension by the bottom roller.
  • the suspension cable 3 is connected to the lifting platform 6, and the suspension cable 3 lifts the lifting platform 6 below the insulator 7 through the pulley 8, and the worker climbs to the same height by other equipment and climbs to the lifting platform.
  • the position of the lifting platform 6 is adjusted by controlling the suspension cable 3, so that the suspension point is aligned, the worker suspends the top shield 2 on the insulator 7, and the top shield is installed.
  • the lifting platform 6 is lowered to the ground and the installation of the first valve layer 5 is started.
  • the valve layer 5 is placed on the lifting platform 6 by the lifting device, and between the top shielding cover and the first valve layer 5 is The suspension insulator 4 is also placed on the lifting platform, and then the lifting platform 6 is translated to the forward side of the suspension cable 3. After the suspension cable 3 and the lifting platform 6 are connected, the suspension cable 3 passes the lifting platform 6 through the pulley 8.
  • the suspension insulator 4 is first fixed at the corresponding suspension point on the top shield, and then the position of the lifting platform 6 is adjusted by controlling the suspension cable 3 to suspend the insulator 4 and the valve layer 5 After the suspension point is in a good position, the worker suspends the valve layer 5 on the insulator 4, and the first valve layer 5 is installed.

Abstract

一种直流换流阀的组装方法，包括组装顶屏蔽罩（2）：通过升降平台（6）将顶屏蔽罩托升至指定高度，然后将顶屏蔽罩与绝缘子（7）的下端固定连接；绝缘子的上端与桁架（1）固定连接；桁架位于阀厅顶部；组装阀层：通过升降平台按照自上而下的顺序分别将各阀层（5）托升至指定的位置；组装底屏蔽罩：通过升降平台将底屏蔽罩托升至指定高度，然后通过悬吊绝缘子将底屏蔽罩最下层的阀层连接并悬吊在底屏蔽罩下方。本发明便于操作、使用设备少、安全可靠性高。

Description

直流换流阀的组装方法 技术领域
本发明涉及直流换流阀领域，尤其涉及一种直流换流阀的组装方法。
背景技术
常规直流输电中所用的晶闸管换流阀塔一般都悬吊在阀厅顶部的桁架上，层与层之间通过绝缘拉杆或者绝缘子连接，这种固定方式的好处是具有良好的减震效果。但由于桁架较高而阀层重量较重，且层与层之间的绝缘子仅能承受拉力而无法承受支撑力，所以无法将整个阀塔在地面组装完成后再进行悬吊，需要在高空进行组装，具有较大的难度。
目前有一种悬吊组装方法是，首先将所有悬吊绝缘子或绝缘拉杆以及每个阀层的承重梁通过设备抬升至高处进行组装，组装完成后形成整个阀塔的“骨架”；然后逐个将阀层内的晶闸管组件和电抗器组件等抬升至空中安装至对应的位置上。这种方法的优点是每次需要抬升的重量不大，对设备要求较低，但其最大的缺点在于由于每次仅抬升组装一个组件，所以整个阀塔的安装非常耗时，效率较低。
发明内容
本发明的目的是提供一种便于操作、使用设备少、安全可靠性高的直流换流阀的组装方法，并且特别适合于高压直流换流阀塔。
为了实现以上目的，本发明采取以下技术方案予以实现：直流换流阀的组装方法，其特征在于包括以下步骤：
组装顶屏蔽罩:通过升降平台将顶屏蔽罩托升至指定高度,然后将顶屏蔽罩与绝缘子的下端固定连接；所述悬吊绝缘子的上端与桁架1固定连接；所述桁架1位于阀厅顶部；
组装阀层:通过升降平台按照自上而下的顺序分别将各阀层托升至指定的位置；当第一阀层被升降平台托升至指定位置时,通过悬吊绝缘子将第一阀层与顶屏蔽罩连接并悬吊在顶屏蔽罩下方；当相邻的下一阀层被升降平台托升至指定位置时,通过悬吊绝缘子将下相邻的下一阀层与相邻的上一阀层连接并悬吊在相邻的上一阀层下方；重复上述步骤,直到最下层的阀层与相邻的上一阀层连接并悬 吊在相邻上一阀层下方；
组装底屏蔽罩:通过升降平台将底屏蔽罩托升至指定高度,然后通过悬吊绝缘子将底屏蔽罩最下层的阀层连接并悬吊在底屏蔽罩下方。
作为本发明进一步改进的技术方案，所述升降平台的面积分别大于所述顶屏蔽罩、阀层和底屏蔽罩的面积，且能同时放置每阀层所需数量的悬吊绝缘子，并能站立工作人员。
作为本发明进一步改进的技术方案，所述升降平台底部带有滚轮；升降平台每次抬升前，先在地面将升降平台平移至合适位置，然后通过吊装设备将所述顶屏蔽罩、阀层或者底屏蔽罩放置在升降平台上。
作为本发明进一步改进的技术方案，所述升降平台上还放置有悬吊绝缘子。
作为本发明进一步改进的技术方案，升降平台抬升时，所述顶屏蔽罩、阀层或者底屏蔽罩位于升降平台的中心位置，所述悬吊绝缘子均匀放置于顶屏蔽罩、阀层或者底屏蔽罩的四周。
作为本发明进一步改进的技术方案，当完成所述顶屏蔽罩、阀层或者底屏蔽罩的安装固定后，所述升降平台降至地面，用于进行下一次抬升和安装。
作为本发明进一步改进的技术方案，通过悬拉索和滑轮8控制升降平台的升降。
本直流换流阀的组装方法，其特征在于所述方法为采用一个面积大于屏蔽罩或阀层面积的升降平台，按实际阀塔悬吊时从上到下的顺序，将顶屏蔽罩、各阀层、底屏蔽罩依次托升至指定高度后，利用悬吊绝缘子将顶屏蔽罩、各阀层、底屏蔽罩悬挂固定。其中，所述升降平台的面积大于所述阀塔屏蔽罩、阀层的面积，且能同时放置每阀层所需数量的悬吊绝缘子，并能站立至少4名的工作人员。其中，使用所述升降平台对阀塔各层进行抬升时，每次只抬升一个屏蔽罩或一个阀层，抬升的顺序按照阀塔实际悬吊时从上到下的位置顺序进行。其中，所述升降平台底部带有滚轮，每次抬升前在地面将升降平台平移至合适位置后，通过吊装设备将所述屏蔽罩或阀层放置在升降平台上，并且将所需的悬吊绝缘子放置在升降平台上。其中，抬升时，所述屏蔽罩或阀层应位于整个升降平台的中心位置，悬吊绝缘子平均分布于屏蔽罩或阀层的四周。其中，所述升降平台升至指定高度时，由工作人员将所述屏蔽罩或阀层以及悬吊绝缘子进行安装固定，完成后将升降平 台降至地面，进行下一次抬升和安装。
本发明的有益效果是：
1、采用一个面积大于屏蔽罩、阀层面积的升降平台，将整个屏蔽罩或阀层升至空中进行悬吊组装，整个阀塔仅需抬升几次便可完成组装，效率非常高。
2、工作人员工作时站在升降平台上，将各绝缘子通过吊耳固定在上层屏蔽罩或阀层即可，整个组装过程使用设备少，操作方便，可靠性高。
附图说明
图1为悬吊顶屏蔽罩时的示意图
图2为悬吊第一个阀层时的示意图
图3为悬吊顶屏蔽罩时的45°角视图
具体实施方式
下面结合附图及具体实施例对本发明作进一步详细说明。
如图1所示，桁架1位于阀厅顶部，用于悬吊整个阀塔的绝缘子7悬吊在桁架1下方。安装顶屏蔽罩2时，首先在地面将升降平台6通过底部的滚轮移动至合适的位置后，通过吊装设备将顶屏蔽罩2放置在升降平台6上，随后升降平台6通过底部滚轮移动至悬拉索3的正下方，将悬拉索3连接到升降平台6上，悬拉索3通过滑轮8将升降平台6升至绝缘子7下方，工作人员通过其他设备升至同一高度后攀登至升降平台6上，通过控制悬拉索3调整升降平台6的位置，使悬吊点对好位置后，工作人员将顶屏蔽罩2悬吊在绝缘子7上，顶屏蔽罩安装完成。
顶屏蔽罩2安装完毕后，升降平台6降至地面，开始进行第一个阀层5的安装。如图2所示，同样先将升降平台通过底部的滚轮移动至合适的位置后，通过吊装设备将阀层5放置在升降平台6上面，并且将顶屏蔽罩和第一阀层5之间的悬吊绝缘子4也放置在升降平台上，再将升降平台6平移至悬拉索3的正向方，连接好悬拉索3和升降平台6后，悬拉索3通过滑轮8将升降平台6升至顶屏蔽罩下面，先将悬吊绝缘子4固定在顶屏蔽罩上的相应悬吊点处，然后通过控制悬拉索3调整升降平台6的位置，使悬吊绝缘子4和阀层5的悬吊点对好位置后，工作人员将阀层5悬吊在绝缘子4上，至此第一阀层5安装完毕。
其他阀层和底屏蔽罩的悬吊和安装同上所述，在此不再赘述。
此处已经根据特定的示例性实施例对本发明进行了描述。对本领域的技术人员来说在不脱离本发明的范围下进行适当的替换或修改将是显而易见的。示例性的实施例仅仅是例证性的，而不是对本发明的范围的限制，本发明的范围由所附的权利要求定义。

Claims (7)

  1. 一种直流换流阀的组装方法，其特征在于包括以下步骤：
    组装顶屏蔽罩:通过升降平台将顶屏蔽罩托升至指定高度,然后将顶屏蔽罩与绝缘子的下端固定连接；所述悬吊绝缘子的上端与桁架1固定连接；所述桁架1位于阀厅顶部；
    组装阀层:通过升降平台按照自上而下的顺序分别将各阀层托升至指定的位置；当第一阀层被升降平台托升至指定位置时,通过悬吊绝缘子将第一阀层与顶屏蔽罩连接并悬吊在顶屏蔽罩下方；当相邻的下一阀层被升降平台托升至指定位置时,通过悬吊绝缘子将相邻的下一阀层与相邻的上一阀层连接并悬吊在相邻的上一阀层下方；重复上述步骤,直到最下层的阀层与相邻的上一阀层连接并悬吊在相邻上一阀层下方；
    组装底屏蔽罩:通过升降平台将底屏蔽罩托升至指定高度,然后通过悬吊绝缘子将底屏蔽罩最下层的阀层连接并悬吊在底屏蔽罩下方。
  2. 根据权利要求1所述的直流换流阀的组装方法，其特征在于：所述升降平台的面积分别大于所述顶屏蔽罩、阀层和底屏蔽罩的面积，且能同时放置每阀层所需数量的悬吊绝缘子，并能站立工作人员。
  3. 根据权利要求1或2所述的直流换流阀的组装方法，其特征在于：所述升降平台底部带有滚轮；升降平台每次抬升前，先在地面将升降平台平移至合适位置，然后通过吊装设备将所述顶屏蔽罩、阀层或者底屏蔽罩放置在升降平台上。
  4. 根据权利要求3所述的直流换流阀的组装方法，其特征在于：所述升降平台上还放置有悬吊绝缘子。
  5. 根据权利要求4所述的直流换流阀的组装方法，其特征在于：升降平台抬升时，所述顶屏蔽罩、阀层或者底屏蔽罩位于升降平台的中心位置，所述悬吊绝缘子均匀放置于顶屏蔽罩、阀层或者底屏蔽罩的四周。
  6. 根据权利要求1～5之一所述的直流换流阀的组装方法，其特征在于：当完成所述顶屏蔽罩、阀层或者底屏蔽罩的安装固定后，所述升降平台降至地面，用于进行下一次抬升和安装。
  7. 根据权利要求1～5之一所述的直流换流阀的组装方法，其特征在于：通过悬拉索和滑轮8控制升降平台的升降。
PCT/CN2016/089944 2015-07-28 2016-07-13 直流换流阀的组装方法 WO2017016392A1 (zh)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US15/747,764 US10632578B2 (en) 2015-07-28 2016-07-13 Assembly method for DC converter valve
AU2016300492A AU2016300492B2 (en) 2015-07-28 2016-07-13 Assembly method for DC converter valve
JP2018524517A JP6554610B2 (ja) 2015-07-28 2016-07-13 Ｄｃ変換器バルブのための組立て方法
CA2992914A CA2992914C (en) 2015-07-28 2016-07-13 Assembly method for dc converter valve
RU2018106134A RU2691361C1 (ru) 2015-07-28 2016-07-13 Способ монтажа предохранительного клапана постоянного тока
BR112018001505-9A BR112018001505B1 (pt) 2015-07-28 2016-07-13 Método de montagem para uma válvula conversora
MX2018001179A MX2018001179A (es) 2015-07-28 2016-07-13 Metodo de montaje para valvula convertidora de corriente directa.
KR1020187004517A KR102018010B1 (ko) 2015-07-28 2016-07-13 직류 컨버터 밸브의 조립 방법

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CN114152828B (zh) * 2021-11-26 2023-10-24 国网湖北省电力有限公司直流运检公司 柔性直流输电换流阀子模块功率检修试验装置及试验方法

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