WO2015154497A1 - 换流阀组件及使用该换流阀组件的阀塔 - Google Patents

换流阀组件及使用该换流阀组件的阀塔 Download PDF

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Publication number
WO2015154497A1
WO2015154497A1 PCT/CN2014/093375 CN2014093375W WO2015154497A1 WO 2015154497 A1 WO2015154497 A1 WO 2015154497A1 CN 2014093375 W CN2014093375 W CN 2014093375W WO 2015154497 A1 WO2015154497 A1 WO 2015154497A1
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WIPO (PCT)
Prior art keywords
sub
module
frame
valve
water pipe
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PCT/CN2014/093375
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English (en)
French (fr)
Inventor
姚为正
张建
张承
朱新华
李申
肖晋
姚志国
毛志云
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许继电气股份有限公司
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Publication of WO2015154497A1 publication Critical patent/WO2015154497A1/zh

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    • 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
    • H02M1/00—Details of apparatus for conversion
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • H05K7/1432—Housings specially adapted for power drive units or power converters
    • H05K7/14339—Housings specially adapted for power drive units or power converters specially adapted for high voltage operation

Definitions

  • the present invention relates to a converter valve assembly and a valve tower using the same.
  • Flexible DC transmission is a new generation of DC transmission technology with voltage source converter as the core. Compared with AC transmission and conventional DC transmission, flexible DC transmission can flexibly adjust the voltage of AC system while transmitting energy, so flexible DC Transmission has the advantages of good controllability, flexible operation mode and many applicable occasions. Therefore, under the new form of current grid construction and the rapid development of renewable energy, distributed power supply and grid intelligent technology, flexible DC transmission technology To provide a new way to make up for the shortcomings of traditional high-voltage AC and DC transmission technology.
  • the valve tower adopts a supporting structure and a suspended structure.
  • the valve tower is composed of a multi-layer converter valve assembly, and each component of each layer of the converter valve assembly
  • a thyristor converter valve module disclosed in Chinese Patent Document CN101719719B a thyristor converter valve module is equivalent to a layer of a converter valve module, the thyristor converter valve module comprising two valve segments arranged symmetrically, each
  • the valve segment further comprises a saturable reactor component, a thyristor unit, a DC voltage equalizing resistor unit, a power taking resistor unit, a damping resistor unit, a damping capacitor unit, a gate unit and a water cooling system, wherein the thyristor unit, the DC voltage equalizing resistor unit, and the energy dissipation unit
  • the resistor unit, the damping resistor unit, the snubber capacitor unit and the gate unit are fixed on the same frame to form
  • the saturable reactor is a separate component, and the thyristor unit is formed by connecting a plurality of thyristors and their accessory components in series.
  • a heat sink is connected to each side of each thyristor and corresponds to a damping resistor, a damper capacitor, and a DC Resistor, energy-receiving resistor and gate circuit, in the arrangement: centering on the thyristor unit, the gate unit, the damping resistor and the damping capacitor are arranged on both sides of the thyristor unit, and the thyristor-level component and the saturated reactor component are connected in series to form a valve segment Therefore, each unit and the water cooling system in the thyristor converter valve module are relatively independently arranged on the frame, and the arrangement structure of each unit and the water cooling system is discrete, thereby making the installation and maintenance work of the valve tower extremely inconvenient.
  • the Chinese patent document with the application number 201310239581.X discloses an IGBT power unit and a submodule for flexible direct current transmission, the submodule comprising a capacitor, a busbar assembly and an IGBT module, the capacitor being fixed on the rear side of the two support rails
  • a plate-shaped heat sink is interposed between the IGBT module and its control circuit, and each IGBT module is mounted with a composite busbar connected to the capacitor, and the IGBT module has two and is disposed between the two plate-shaped heat sinks, two The top of the plate radiator is connected by a U-shaped water pipe, and the IGBT power module, the thyristor crimping unit and the bypass switch are mounted on the same fixed base, and the fixed base is fixed on the front side of the two support rails, and the main busbar is located The side of the fixed base facing away from the capacitor, the IGBT power module and the thyristor crimping unit connect the components of the main circuit through two composite busbars and the main busbar
  • the converter valve assembly comprises a frame and two or more sub-modules, the frame is equipped with a branch water pipe for connecting the water main pipe, and the sub-module has a heat dissipating device, and the sub-modules are sequentially arranged into valve segments in the left-right direction of the frame, each The sub-modules are respectively assembled on the frame by the corresponding guiding mechanism, and each guiding mechanism has a pulling opening for the corresponding sub-module to enter and exit.
  • the pulling openings of the guiding mechanisms are on the same side of the front and rear directions on the frame, respectively.
  • One end of the sub-module is a plug end corresponding to the pull-out opening, and the heat-dissipating device is disposed at a tail end of the sub-module away from the plug end, and the branch water pipe is disposed adjacent to the heat-dissipating device of the sub-module near the drawing opening.
  • the side of the frame on which the donor module of the drawing opening is drawn is provided with an installation platform for installing the maintenance platform, and the installation position of the inspection platform and the valve section are arranged side by side.
  • the main busbars of each sub-module are connected in series by the conductive strips arranged at the tail end, and the left and right ends of the valve section are provided with lead-out terminals for accessing the main circuit.
  • the frame is provided with a water leakage treatment plate under the interface of the heat dissipation device and the branch water pipe in the valve section, and the water leakage treatment plate extends along the left and right.
  • the heat dissipating device of each sub-module is connected in parallel to the branch water pipe, and the water inlet of the heat dissipating device is connected to the water inlet pipe section of the branch water pipe, and the water outlet of the heat dissipating device is connected to the outlet pipe section of the branch water pipe, and the branch water pipe is advanced.
  • the outlet pipe section extends left and right between the leakage treatment plate and the valve section.
  • a valve tower comprising a water main pipe and a converter valve assembly, the converter valve assembly comprising a frame and two or more sub-modules, the frame being equipped with a branch water pipe connected to the water main pipe, the sub-module having a heat dissipating device, the sub-module being along the frame
  • the left and right directions are sequentially arranged into valve segments, and the sub-modules are respectively assembled on the frame by the corresponding guiding mechanism, and each guiding mechanism has a pulling opening for the corresponding sub-modules to enter and exit, and the pulling openings of the guiding mechanisms are respectively
  • the frame is on the same side in the front-rear direction, and one end of each sub-module is a plug end corresponding to the pull-out opening, and the heat-dissipating device is disposed at a tail end of the sub-module away from the plug end, and the branch water pipe is close to the pull-out opening and the sub-module
  • the module's heat sink is set accordingly.
  • the side of the frame on which the donor module of the drawing opening is drawn is provided with an installation platform for installing the maintenance platform, and the installation position of the inspection platform and the valve section are arranged side by side.
  • the main busbars of each sub-module are connected in series by the conductive strips arranged at the tail end, and the left and right ends of the valve section are provided with lead-out terminals for accessing the main circuit.
  • the frame is provided with a water leakage treatment plate under the interface of the heat dissipation device and the branch water pipe in the valve section, and the water leakage treatment plate extends along the left and right.
  • the heat dissipating device of each sub-module is connected in parallel to the branch water pipe, and the water inlet of the heat dissipating device is connected to the water inlet pipe section of the branch water pipe, and the water outlet of the heat dissipating device is connected to the outlet pipe section of the branch water pipe, and the branch water pipe is advanced.
  • the outlet pipe section extends left and right between the leakage treatment plate and the valve section.
  • two or more sub-modules are sequentially arranged on the frame to form a valve segment, and each sub-module is respectively mounted on the frame along a column of the valve segment through a corresponding guiding mechanism, and the pulling openings of the guiding mechanisms are respectively
  • the frame is on the same side in the front-rear direction, and one end of each sub-module is a plug end corresponding to the pull-out opening, and the heat-dissipating device is disposed at a tail end of the sub-module away from the plug end, and the branch water pipe is close to the pull-out opening and the sub-module
  • the heat sink is correspondingly arranged.
  • each sub-module When the valve tower is inspected and installed, the plug end of each sub-module can be assembled on the frame from the same side of the guiding mechanism through the pulling opening, so that the heat sink at the tail end of the sub-module will be entirely The same side of the valve section, so that the operator can complete the installation of the sub-module on the frame on the side where the drawing opening of the valve section is located, so that the converter valve assembly can be quickly and easily installed and repaired.
  • the side of the frame for extracting the opening of the donor module is provided with an installation platform for installing the maintenance platform, so that the operator can stand on the inspection platform to complete the installation and maintenance of the entire converter valve assembly.
  • the installation and maintenance space is expanded by adding a maintenance platform to further facilitate the installation and maintenance of the converter valve.
  • each sub-module is connected in series through the conductive rows disposed on the side of the drawing opening of the valve segment, so that the water receiving and power-carrying operations of the converter valve assembly are completed on the same side of the valve segment, further Convenient installation and maintenance of the converter valve assembly.
  • the frame is provided with a water leakage treatment plate under the interface of the heat dissipation device and the branch water pipe in the valve section, and the water leakage treatment plate can prevent the water from falling to the lower converter valve assembly when water leakage occurs at the interface between the heat dissipation device and the branch water pipe.
  • the leakage treatment plate is correspondingly located near the extraction opening, further facilitating the operator to the valve tower. Installation and overhaul.
  • valve tower embodiment 1 is a schematic structural view of a valve tower embodiment 1 of the present invention
  • Figure 2 is a left side view of Figure 1;
  • Figure 3 is a plan view of Figure 1;
  • Figure 4 is a schematic structural view of the converter valve assembly of Figure 3;
  • Figure 5 is a bottom view of Figure 4.
  • Figure 6 is a cross-sectional view taken along line A-A of Figure 5;
  • Figure 7 is a schematic structural view of the rail frame of Figure 4.
  • Figure 8 is a cross-sectional view taken along line B-B of Figure 7;
  • Figure 9 is a schematic view showing the structure of the valve tower embodiment 2 after removing the sub-module according to the present invention.
  • Figure 10 is a left side view of Figure 9;
  • Figure 11 is a plan view of Figure 9.
  • Embodiment 1 of the valve tower of the present invention As shown in FIG. 1 to FIG. 8 , the valve tower is a novel flexible DC transmission support valve tower.
  • the valve tower is a single tower structure and a valve tower.
  • the foot insulator 101, the interlayer insulator 102, the valve block layer 103 and the water main pipe 104 are included, and each valve block layer 103 is composed of two front and rear symmetrically arranged converter valve assemblies and an inspection platform 105 installed therebetween, each of which
  • the converter valve assembly is composed of a frame 1061 and a sub-module 1062 and a branch water pipe 1063 mounted thereon.
  • the sub-module 1062 has five and is arranged on the frame 1061 from left to right to form a valve segment, and each sub-module 1062
  • the front and rear guides of the guide mechanism are respectively mounted on the frame 1061.
  • the side of each guide mechanism adjacent to the service platform 105 is a pull-out opening 1071 for the sub-module 1062 to enter and exit, and the pull-out opening 1071 of each guide mechanism is in the frame 1061.
  • the upper side in the front-rear direction is flush with each other on the left and right sides; the end of the capacitor 10622 in each sub-module 1062 is the plug end 10621 for inserting from the drawing opening 1071, and the heat sink 10623 and the main busbar 10624 are located.
  • the end is away from the plug end 10621
  • the end 10625 after the sub-module 1062 is mounted in position on the guiding mechanism, the tail end 10625 will be at the position of the drawing opening 1071 so that the tail end 10625 of each sub-module 1062 is flat with respect to the side of the valve section close to the service platform 105.
  • the branch water pipe 1063 is located below the heat dissipating device 10623 of each sub-module 1062 in the valve section and extends left and right.
  • the heat dissipating device 10623 in each sub-module 1062 is connected in parallel on the branch water pipe 1063, and the water inlet of the heat dissipating device 10623 is connected to the branch water pipe.
  • the water outlet of the heat sink 10623 is connected to the outlet pipe section of the branch water pipe 1063, and the left end of the branch water pipe 1063 is connected to the water pipe 104, and the water pipe 104 is located between the two converter valve assemblies.
  • the left side of the service platform 105 is located.
  • the opposite side of the frame 1061 of the two converter valve assemblies in each layer of the valve block layer 103 is the service platform mounting position for mounting the service platform 105, and is disposed between the valve block layers 103 of the adjacent layers and below the valve block layer 103 of the bottom layer.
  • the ladder 108 corresponding to the service platform 105 is fixed with a shield cover 109 arranged at a U-shaped interval on the remaining three sides of the frame 1061 except for the side where the installation position is located.
  • the guiding mechanism includes a left and right extending guide frame 1072 fixed on the frame 1061.
  • the guiding frame 1072 is located between the left and right sides of the valve section and the adjacent sub-modules 1062.
  • Each guiding frame 1072 is a wing plate 10721 which is symmetrically disposed on the left and right sides.
  • a T-shaped frame body is formed by a vertical plate 10722 interposed between the two wing plates 10721.
  • Each of the wings 10721 is further equipped with a universal ball 10723 arranged in front and rear, and a height of the universal ball 10723 exposed from the wing plate 10721.
  • the frame 1072 is surrounded by a vertical plate 10722 to be inserted and removed by the sub-module 1062, and the pull-out opening 1071 is located on the side of the plug-in unit close to the service platform 105.
  • each valve segment adjacent to the service platform 105 is further provided with a conductive row 10626 bridged between the main bus bars 10624 of the adjacent two sub-modules 1062.
  • the conductive row 10626 will be the main mother of each sub-module 1062 in the same valve segment.
  • the rows 10624 are connected in series, and the outlet terminals 10627 for accessing the main circuit are respectively disposed on the left and right sides of the valve segment, and the lead ends of the lead terminals 10627 are fixed on the frame 1061 on the left and right sides of the valve segment.
  • the power beam 10611 is disposed such that the valve segments connect the respective sub-modules 1062 to the main circuit through the conductive rows 10626 and the outlet terminals 10627 on the same side.
  • the inlet pipe section and the outlet pipe section of the branch water pipe 1063 are vertically spaced apart and are mounted on the frame 1061 on the mounting bracket provided at the bottom of the heat sink 10623 of the sub-module 1062.
  • the branch water pipe 1063 and the heat sink 10623 are connected by the sub water pipe 10628, and the interfaces of the two ends of the sub water pipe 10628 are all below the heat sink 10623.
  • a water leakage treatment plate 10612 under the interface of the heat dissipation device 10623 and the branch water pipe is further fixed on the frame 1061, and the water leakage treatment plate 10612 extends in the direction of the left and right and in the front and rear direction along the donor module 1062 of the drawing opening 1071. Gradually downwards.
  • the leg insulators 101 have eight sets and are supported at the four corners of the frame 1061 of the two converter valve assemblies in the valve block layer 103 of the bottom layer, and the interlayer insulators 102 are located between the valve block layers 103 of the adjacent layers and are erected in two
  • the frame 1061 of the converter valve assembly is at a four-corner position.
  • the valve tower adopts a ground supporting structure, and is fixed on the ground by the foot insulator 101.
  • the six sub-modules 1062 form a valve assembly, and the valve assembly is integrally hoisted, and is sequentially connected through the interlayer insulator 102.
  • the valve assembly is a unit, which is convenient to install in the field and has a small workload; the water main pipe 104 of the valve tower is introduced from the lower portion to the left side of the valve tower, and the water main pipe 104 is arranged from the bottom to the top, and is connected to each valve through the branch water pipe 1063.
  • each valve assembly is equipped with a water leakage treatment board 10612, which can avoid short circuit damage to the lower components due to water leakage from the upper pipe of the valve tower; each valve tower is installed with two bottom and top layers.
  • the maintenance platform and the maintenance platform are equipped with a ladder 108, and the maintenance space is left inside the valve tower.
  • the maintenance personnel can conveniently stand on the maintenance platform to maintain and replace the components of the valve tower; the outer shield of the valve tower is shielded by several small shields.
  • the cover 109 is composed of both the heat dissipation performance and the beautiful appearance; in addition, the universal ball 10723 is mounted on the guide rail of the lower part of each sub-module 1062. It can easily be pulled out of each sub-module 1062, a separate maintenance.
  • Embodiment 2 of the valve tower of the present invention As shown in FIG. 9 to FIG. 11, the difference between this embodiment and Embodiment 1 is that the valve tower is a double tower structure, and the valve block layer 203 of each layer is symmetrically symmetrical by two pairs.
  • Commutation valve assembly 2031, each pair of commutation The valve assembly is composed of two symmetrical valves 2031, and a water main pipe 204 is arranged on the left and right sides of the entire valve tower to facilitate the left side of the pair of converter valve assemblies from the left side and the right side. Introduce the main water path to the right side of the converter valve assembly.
  • the water main pipe is arranged from the bottom to the top, that is, the circulating cold water sequentially enters the sub-modules of each layer of the valve block layer from bottom to top in the main water pipe, and then flows back downward.
  • the water main pipe You can also drain water from top to bottom.
  • each valve block layer adopts a support structure, and the shield cover is arranged at a small interval.
  • the valve block layer may also adopt a suspension structure, and the shield cover may also adopt an integral design.
  • the heat dissipating devices of the respective sub-modules of the same reversing valve assembly are connected in parallel to the branch water pipes. In other embodiments, the heat dissipating devices may also be connected in series to the branch water pipes.
  • the guiding mechanism uses a guide frame with a universal ball to achieve guiding.
  • the guiding frame may also be a linear guide, a slide rail or the like.
  • the embodiment of the converter valve assembly of the present invention the structure of the converter valve assembly in this embodiment is the same as that of the converter valve assembly in the above embodiment, and therefore will not be described again.

Abstract

一种换流阀组件及使用该换流阀组件的阀塔，换流阀组件中两个以上的子模块（ 1062）依次排布在框架（ 1061）上而形成阀段，各子模块分别通过对应的导向机构沿阀段的列向导向装配在框架上，各导向机构的抽拉开口（ 1071）在框架上处于前后方向的同侧，各子模块一端为与抽拉开口对应的插头端（ 10621），散热装置（ 10623）远离插头端而设置于子模块的尾端（ 10625），分支水管（ 1063）靠近抽拉开口而与子模块的散热装置对应设置，在进行阀塔的检修和安装时，各子模块的插头端可通过抽拉开口从导向机构的同侧导向装配在框架上，这样位于子模块尾端的散热装置将处于整个阀段的同侧，从而使得操作人员可在阀段的抽拉开口所处侧完成子模块在框架上的安装，使得换流阀组件能够方便快捷的安装和维修。

Description

换流阀组件及使用该换流阀组件的阀塔 技术领域
本发明涉及一种换流阀组件及使用该换流阀组件的阀塔。
背景技术
柔性直流输电是以电压源换流器为核心的新一代直流输电技术，与交流输电和常规直流输电相比，柔性直流输电在传输能量的同时，能够灵活地调节交流系统的电压，因此柔性直流输电具有可控性较好、运行方式灵活、适用场合多等显著优点，从而在当前电网建设日益困难以及可再生能源、分布式电源、电网智能化技术迅速发展的新形式下，柔性直流输电技术为弥补传统高压交直流输电技术的不足提供了新的途径。
目前，国内外的柔性直流输电阀塔均处于研发阶段，阀塔采用支撑式结构和悬吊式结构，阀塔由多层换流阀组件层叠而成，每层换流阀组件中各部件的布置方式如中国专利文献CN101719719B所公开的一种晶闸管换流阀模块，一个晶闸管换流阀模块相当于一层换流阀组件，该晶闸管换流阀模块包括对称布置的两个阀段，每个阀段又包括饱和电抗器组件、晶闸管单元、直流均压电阻单元、取能电阻单元、阻尼电阻单元、阻尼电容单元、门极单元和水冷系统，其中晶闸管单元、直流均压电阻单元、取能电阻单元、阻尼电阻单元、阻尼电容单元和门极单元被固定在同一框架上而形成一个晶闸管级组件，饱和电抗器作为一个单独组件，晶闸管单元是由若干个晶闸管及其附属部件串联而成，每个晶闸管的两侧都连接有散热器并对应一个阻尼电阻、阻尼电容、直流均电阻、取能电阻和门极电路，在布置方式上：以晶闸管单元为中心，晶闸管单元的两侧布置门极单元、阻尼电阻和阻尼电容，晶闸管级组件与饱和电抗器组件串联构成一个阀段，因此这种晶闸管换流阀模块中各个单元和水冷系统被相对独立的布置在框架上，各个单元和水冷系统的布置结构离散，从而使得阀塔的安装和检修作业极为不便。
申请号为201310239581.X的中国专利文献公开了一种IGBT功率单元及用于柔性直流输电的子模块，该子模块包括电容、母排组件和IGBT模块，电容被固定在两个支撑导轨后侧，IGBT模块及其控制回路之间夹设有板状散热器，每个IGBT模块上均安装有与电容连接的复合母排，IGBT模块有两个并设置在两板状散热器之间，两板状散热器的顶部通过U型的水管连通，IGBT功率模块、晶闸管压接单元和旁路开关被安装在同一固定底座上，固定底座被固定在两个支撑轨道的前侧，主母排位于固定底座背向电容的一侧，IGBT功率模块和晶闸管压接单元通过两个复合母排和主母排将主回路的元件连接起来，从而使得子模 块形成整体式的模块结构，但现有技术中尚无合理的换向阀组件布置方式与所述子模块配套，因此现有的阀塔仍然存在安装和检修不便的问题。
发明内容
本发明的目的是提供一种便于安装和维修的换流阀组件，同时还提供了一种使用该换流阀组件的阀塔。
为了实现以上目的，本发明中换流阀组件的技术方案如下：
换流阀组件，包括框架和两个以上的子模块，框架上装配有用于接通总水管的分支水管，子模块具有散热装置，所述子模块沿框架左右方向依次排布成阀段，各子模块分别通过对应的导向机构前后导向装配在框架上，各导向机构均具有供对应子模块进出的抽拉开口，各导向机构的抽拉开口在框架上处于前后方向的同侧，各子模块一端为与抽拉开口对应的插头端，散热装置远离插头端而设置于子模块的尾端，所述分支水管靠近抽拉开口而与子模块的散热装置对应设置。
框架上于抽拉开口的供子模块抽出的一侧设有用于安装维修平台的检修平台安装位，检修平台安装位和阀段前后并排间隔设置。
各子模块中主母排通过尾端设置的导电排串接，阀段的左右两端设有用于接入主回路的引出接电端。
框架上设有处于阀段中散热装置和分支水管的接口下方的漏水处理板，漏水处理板沿左右延伸。
各子模块中散热装置并行接通在分支水管上，散热装置的进水口接通在分支水管的进水管段上，散热装置的出水口接通在分支水管的出水管段上，分支水管的进、出水管段在漏水处理板和阀段之间沿左右延伸。
本发明中阀塔的技术方案如下：
阀塔，包括总水管和换流阀组件，换流阀组件包括框架和两个以上的子模块，框架上装配有接通总水管的分支水管，子模块具有散热装置，所述子模块沿框架左右方向依次排布成阀段，各子模块分别通过对应的导向机构前后导向装配在框架上，各导向机构均具有供对应子模块进出的抽拉开口，各导向机构的抽拉开口在框架上处于前后方向的同侧，各子模块一端为与抽拉开口对应的插头端，散热装置远离插头端而设置于子模块的尾端，所述分支水管靠近抽拉开口而与子模块的散热装置对应设置。
框架上于抽拉开口的供子模块抽出的一侧设有用于安装维修平台的检修平台安装位，检修平台安装位和阀段前后并排间隔设置。
各子模块中主母排通过尾端设置的导电排串接，阀段的左右两端设有用于接入主回路的引出接电端。
框架上设有处于阀段中散热装置和分支水管的接口下方的漏水处理板，漏水处理板沿左右延伸。
各子模块中散热装置并行接通在分支水管上，散热装置的进水口接通在分支水管的进水管段上，散热装置的出水口接通在分支水管的出水管段上，分支水管的进、出水管段在漏水处理板和阀段之间沿左右延伸。
本发明将两个以上的子模块依次排布在框架上而形成阀段，各子模块分别通过对应的导向机构沿阀段的列向导向装配在框架上，各导向机构的抽拉开口在框架上处于前后方向的同侧，各子模块一端为与抽拉开口对应的插头端，散热装置远离插头端而设置于子模块的尾端，分支水管靠近抽拉开口而与子模块的散热装置对应设置，在进行阀塔的检修和安装时，各子模块的插头端可通过抽拉开口从导向机构的同侧导向装配在框架上，这样位于子模块尾端的散热装置将处于整个阀段的同侧，从而使得操作人员可在阀段的抽拉开口所处侧完成子模块在框架上的安装，使得换流阀组件能够方便快捷的安装和维修。
进一步的，框架上抽拉开口的供子模块抽出的一侧设有用于安装维修平台的检修平台安装位，从而使得操作人员可站在检修平台上完成整个换流阀组件的安装和检修，并通过增设检修平台来扩大安装和检修的空间，进一步方便换流阀的安装和检修。
进一步的，各子模块中主母排通过阀段的抽拉开口所处侧设置的导电排串接，这样换流阀组件的接水和接电作业将在阀段的同侧完成，进一步方便换流阀组件的安装和维修。
进一步的，框架上设有处于阀段中散热装置和分支水管的接口下方的漏水处理板，在散热装置和分支水管的接口处出现漏水时，该漏水处理板能够防止水落到下层换流阀组件上，以避免漏水对阀塔中换流阀组件的损害，而且漏水处理板在处于散热装置下方后，漏水处理板也相应的处于靠近抽拉开口的位置处，进一步方便操作人员对阀塔的安装和检修。
附图说明
图1是本发明中阀塔实施例1的结构示意图；
图2是图1的左视图；
图3是图1的俯视图；
图4是图3中换流阀组件的结构示意图；
图5是图4的仰视图；
图6是图5的A-A向剖视图；
图7是图4中导轨架的结构示意图；
图8是图7的B-B向剖视图；
图9是本发明中阀塔实施例2在拆除子模块后的结构示意图；
图10是图9的左视图；
图11是图9的俯视图。
具体实施方式
本发明中阀塔的实施例1：如图1至图8所示，该阀塔是一种新型的柔性直流输电支撑式阀塔，本实施例中阀塔是一种单塔结构，阀塔包括支脚绝缘子101、层间绝缘子102、阀组层103和总水管104，每层阀组层103由两个前后对称布置的换流阀组件及两者之间安装的检修平台105构成，每个换流阀组件由框架1061及其上装配的子模块1062、分支水管1063构成，其中子模块1062有五个并从左至右依次排布在框架1061上而形成阀段，各个子模块1062又分别通过对应的导向机构前后导向装配在框架1061上，各导向机构的靠近检修平台105的一侧为供子模块1062进出的抽拉开口1071，各导向机构的抽拉开口1071在框架1061上处于前后方向的同侧、并在左右相互平齐；各子模块1062中电容10622所处端为用于从抽拉开口1071插入的插头端10621，散热装置10623和主母排10624所处端为远离插头端10621的尾端10625，在子模块1062在导向机构上安装到位后，尾端10625会处于抽拉开口1071位置处，以使各个子模块1062的尾端10625在阀段靠近检修平台105的一侧相互平齐；分支水管1063处于阀段中各个子模块1062的散热装置10623下方并左右延伸，各子模块1062中散热装置10623并行接通在分支水管1063上，散热装置10623的进水口接通在分支水管1063的进水管段上，散热装置10623的出水口接通在分支水管1063的出水管段上，分支水管1063的左端接通在总水管104上，总水管104位于两换流阀组件之间的检修平台105左侧位置处。
每层的阀组层103中两换流阀组件的框架1061相对侧为安装检修平台105的检修平台安装位，在相邻层的阀组层103之间和底层的阀组层103下方设有与检修平台105对应的爬梯108，框架1061上除检修安装位所在侧外的其余三侧固定有呈U形间隔布置的屏蔽罩109。导向机构包括框架1061上固设的左右延伸的导向架1072，导向架1072位于阀段的左、右侧和相邻子模块1062之间，每个导向架1072是由左右对称设置的翼板10721和两翼板10721之间夹设的立板10722构成的T形架体，每个翼板10721上又装配有前后间隔排布的万向球10723，万向球10723从翼板10721上露出的高度低于立板10722的顶面，以使立板10722在两翼板10721之间形成挡止子模块1062左右移动的挡止结构，并在相邻两导向 架1072之间由立板10722围成供子模块1062前后插拔的插拔单元，而抽拉开口1071就处于该插拔单元的靠近检修平台105的一侧。
每个阀段的靠近检修平台105的一侧又设有桥接在相邻两子模块1062的主母排10624之间的导电排10626，导电排10626将同阀段中各个子模块1062的主母排10624依次串接，并在阀段的左右两侧分别设有用于接入主回路的引出接电端10627，引出接电端10627的引出端被固定在框架1061上于阀段的左右两侧设置的接电梁10611上，从而使得阀段通过同侧的各导电排10626和引出接电端10627将各个子模块1062接入主回路。
分支水管1063的进水管段和出水管段上下间隔设置，并被安装在框架1061上于子模块1062的散热装置10623底部设置的安装支架上。分支水管1063和散热装置10623通过子水管10628接通，子水管10628的两端接口均处于散热装置10623的下方。框架1061上还固设有处于散热装置10623和分支水管的接口下方的漏水处理板10612，漏水处理板10612沿左右延伸、并在前后方向上沿抽拉开口1071的供子模块1062抽出的方向逐渐向下倾斜。
支脚绝缘子101有八组并撑托在底层的阀组层103中两换流阀组件的框架1061四角位置处，层间绝缘子102则处于相邻层的阀组层103之间并立设在两个换流阀组件的框架1061四角位置处。总水管104从支脚绝缘子101的底部引入后，被引向整个阀塔的左侧，从各层的阀组层103中检修平台105的前侧向上布置，在每层的阀组层103处接通到向前后叉开的分支水管1063上。
本实施例中阀塔采用地面支撑式结构，通过支脚绝缘子101固定在地面上，六个子模块1062组成一个阀组件，阀组件采用整体吊装方式，通过层间绝缘子102依次连接，阀塔安装时以阀组件为单位，现场安装方便，工作量小；阀塔的总水管104从下部引入，引向阀塔的左侧，总水管104从下到上布置，通过分支水管1063连接到每一层阀组件的子水管10628，每个阀组件均安装有漏水处理板10612，这种结构可以避免由于阀塔上部水管漏水给下部元器件造成短路危害；每个阀塔安装有两个位于底层和顶层的维修平台，维修平台间装有爬梯108，并且阀塔内部留有维修空间，维修人员可以很方便地站在维修平台上对阀塔各部件进行维护和更换；阀塔外侧屏蔽由数个小屏蔽罩109组成，既提高散热性能，且美观大方；此外，每个子模块1062下部的导轨上都安装有万向球10723，这样就可以很方便的将每一个子模块1062拉出，进行单独维护。
本发明中阀塔的实施例2：如图9至图11所示，本实施例与实施例1的区别在于，该阀塔是双塔结构，每层的阀组层203由两对左右对称的换流阀组件2031组成，每对换流 阀组件又是由前后对称的两换流阀2031组成，在整个阀塔的左右两侧均设有总水管204，以便于从左侧的一对换流阀组件左侧、从右侧的一对换流阀组件右侧引入主水路。
在上述实施例中，总水管是从下向上布置的，即循环冷水在总水管中自下而上依次进入各层阀组层中子模块，再向下回流，在其他实施例中，总水管也可以从上向下布水。
在上述实施例中，各个阀组层采用支撑结构，屏蔽罩采用小块间隔布置，在其他实施例中，阀组层也可以采用悬吊结构，而屏蔽罩也可以采用整体式设计。
在上述实施例中，同一换流阀组件中各个子模块的散热装置并行接通在分支水管上，在其他实施例中，各散热装置也可以串接在分支水管上。
在上述实施例中，导向机构采用带有万向球的导向架来实现导向，在其他实施例中，该导向架也可以是直线导轨、滑轨等。
本发明中换流阀组件的实施例：本实施例中换流阀组件的结构与上述实施例中换流阀组件的结构相同，因此不再赘述。

Claims (10)

  1. 换流阀组件，包括框架和两个以上的子模块，框架上装配有用于接通总水管的分支水管，子模块具有散热装置，其特征在于，所述子模块沿框架左右方向依次排布成阀段，各子模块分别通过对应的导向机构前后导向装配在框架上，各导向机构均具有供对应子模块进出的抽拉开口，各导向机构的抽拉开口在框架上处于前后方向的同侧，各子模块一端为与抽拉开口对应的插头端，散热装置远离插头端而设置于子模块的尾端，所述分支水管靠近抽拉开口而与子模块的散热装置对应设置。
  2. 根据权利要求1所述的换流阀组件，其特征在于，框架上于抽拉开口的供子模块抽出的一侧设有用于安装维修平台的检修平台安装位，检修平台安装位和阀段前后并排间隔设置。
  3. 根据权利要求1或2所述的换流阀组件，其特征在于，各子模块中主母排通过尾端设置的导电排串接，阀段的左右两端设有用于接入主回路的引出接电端。
  4. 根据权利要求1或2所述的换流阀组件，其特征在于，框架上设有处于阀段中散热装置和分支水管的接口下方的漏水处理板，漏水处理板沿左右延伸。
  5. 根据权利要求4所述的换流阀组件，其特征在于，各子模块中散热装置并行接通在分支水管上，散热装置的进水口接通在分支水管的进水管段上，散热装置的出水口接通在分支水管的出水管段上，分支水管的进、出水管段在漏水处理板和阀段之间沿左右延伸。
  6. 阀塔，包括总水管和换流阀组件，换流阀组件包括框架和两个以上的子模块，框架上装配有接通总水管的分支水管，子模块具有散热装置，其特征在于，所述子模块沿框架左右方向依次排布成阀段，各子模块分别通过对应的导向机构前后导向装配在框架上，各导向机构均具有供对应子模块进出的抽拉开口，各导向机构的抽拉开口在框架上处于前后方向的同侧，各子模块一端为与抽拉开口对应的插头端，散热装置远离插头端而设置于子模块的尾端，所述分支水管靠近抽拉开口而与子模块的散热装置对应设置。
  7. 根据权利要求6所述的阀塔，其特征在于，框架上于抽拉开口的供子模块抽出的一侧设有用于安装维修平台的检修平台安装位，检修平台安装位和阀段前后并排间隔设置。
  8. 根据权利要求6或7所述的阀塔，其特征在于，各子模块中主母排通过尾端设置的导电排串接，阀段的左右两端设有用于接入主回路的引出接电端。
  9. 根据权利要求6或7所述的阀塔，其特征在于，框架上设有处于阀段中散热装置和分支水管的接口下方的漏水处理板，漏水处理板沿左右延伸。
  10. 根据权利要求9所述的阀塔，其特征在于，各子模块中散热装置并行接通在分支水管上，散热装置的进水口接通在分支水管的进水管段上，散热装置的出水口接通在分支水管的出水管段上，分支水管的进、出水管段在漏水处理板和阀段之间沿左右延伸。
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