WO2014206009A1 - 一种晶闸管换流阀组件 - Google Patents

一种晶闸管换流阀组件 Download PDF

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Publication number
WO2014206009A1
WO2014206009A1 PCT/CN2013/088468 CN2013088468W WO2014206009A1 WO 2014206009 A1 WO2014206009 A1 WO 2014206009A1 CN 2013088468 W CN2013088468 W CN 2013088468W WO 2014206009 A1 WO2014206009 A1 WO 2014206009A1
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WIPO (PCT)
Prior art keywords
water
valve
thyristor
radiator
valve assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2013/088468
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English (en)
French (fr)
Inventor
姚为正
张建
肖晋
杜玉格
李申
宋全刚
王健云
谢云龙
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XJ Electric Co Ltd
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XJ Electric Co Ltd
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Publication date
Application filed by XJ Electric Co Ltd filed Critical XJ Electric Co Ltd
Publication of WO2014206009A1 publication Critical patent/WO2014206009A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W90/00—Package configurations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W40/00—Arrangements for thermal protection or thermal control
    • H10W40/40—Arrangements for thermal protection or thermal control involving heat exchange by flowing fluids
    • H10W40/47—Arrangements for thermal protection or thermal control involving heat exchange by flowing fluids by flowing liquids, e.g. forced water cooling

Definitions

  • the present invention relates to the field of high power power electronic converter valves for power systems, and more particularly to a thyristor converter valve assembly.
  • An existing thyristor converter valve assembly such as the "a novel thyristor converter valve module" disclosed in Chinese Patent Publication No. CN101719719A, includes a bracket, and two identically configured valve units are arranged symmetrically on the bracket.
  • Each valve unit includes a reactor component and a valve module
  • the valve module includes a valve segment, a damping resistor unit and a damping capacitor unit
  • the damping resistor unit includes a damping resistor and a resistance radiator
  • the valve segment includes a valve segment frame
  • the valve segment frame includes The middle frame body and the left and right end plates disposed at the left and right ends of the middle frame body, wherein the right end plate is provided with an elastic clamping device, and the left end plate is provided with a pressing device, and the elastic clamping device and the pressing device are installed between A valve block consisting of thyristors and thyristor radiators arranged in phase.
  • the components to be cooled in each valve unit are a reactor assembly, a thyristor, and a damping resistor.
  • the water cooling system for the above-mentioned components to be cooled is provided on the bracket, and the entire water cooling system is a fully parallel water passage.
  • the existing problems of the converter valve assembly are as follows:
  • the water-cooling system adopts a fully parallel waterway, which makes the waterway design difficult, has many waterway joints, and has a high risk of water leakage. Water leakage in the water-cooling system can easily cause the underlying electrical components to occur. Short circuit accidents;
  • the fully parallel design also requires a large water pressure in the water cooling system, further increasing the risk of water leakage in the water system.
  • the technical solution of the present invention is:
  • An inter-crystalline tube converter valve assembly includes a bracket on which a left-right symmetrically disposed left valve unit and a right valve unit are disposed, each valve unit including a reactor assembly and a valve module, the valve module including a valve segment and a damping resistor unit, the damping resistor unit includes a damping resistor and a resistor radiator, and the valve module includes a valve group composed of a thyristor and a thyristor radiator disposed between the phases, and the thyristor converter valve assembly further includes the reactor assembly, the resistor radiator, and a water cooling system for cooling a thyristor radiator, the water cooling system comprising a main inlet water passage and a main return water passage, wherein the main inlet water passage and the main return water passage are connected by the first, second and third water passages arranged in parallel, in the left valve unit a reactor component and each thyristor heat sink are serially connected in the first waterway, the right valve The reactor component and the thyristor heat sink
  • a water separator is disposed between the left and right valve units on the bracket, and the water separator has a main water inlet communicating with the main water inlet and a main water return communicating with the main water return.
  • the water inlet end and the water outlet end of the first, second and third water passages are both disposed on the water separator.
  • the water joints in each water passage in the water cooling system are arranged on the outer side of the corresponding components.
  • a sump is disposed on the bracket corresponding to each of the waterway joints.
  • the valve segment further includes a frame, the frame includes an intermediate frame body and left and right end plates disposed at left and right ends of the intermediate frame body, wherein the right end plate is provided with an elastic clamping device, and the left end plate is provided with a pressing device, the valve The set is disposed between the elastic clamping device and the pressing device, and the pressing device includes an ejector rod extending in the left-right direction and guiding the moving assembly on the frame in the left-right direction, and the right end of the ejector pin is disposed at the right end a pressing structure of the left end of the valve block is press-fitted, and a bearing structure for receiving an axial loading force applied by the corresponding loading mechanism is disposed on the ejector pin on the left side of the pressing structure, and the outer circumference of the ejector is installed for a compression nut that cooperates with the right plate support of the left end plate.
  • the pressing structure includes a pressure plate connected to the jack by a spherical ring.
  • the bearing structure is composed of a left end surface of the jack.
  • the left end plate is provided with a guiding hole extending in the left-right direction, and the left end of the pressing nut is fixedly guided and inserted into the guiding hole to realize the guiding and moving movement of the ejector pin and the frame.
  • Guide sleeve is provided.
  • the intermediate frame includes at least three insulating tie rods connected between the left and right end plates.
  • Two symmetrically arranged insulating support plates are connected between the left and right end plates, wherein one of the insulating support plates is provided with a first guiding support surface whose guiding direction extends in the left-right direction, and the other insulating supporting plate is provided with a guiding a second guiding support surface extending in the left-right direction, each of the heat sinks is provided with a guiding support rod for guiding sliding engagement with the first and second guiding support surfaces, and each radiator passes through the guiding support rod and the corresponding guiding supporting surface
  • the support is mounted on two insulating support plates.
  • the water cooling system comprises two first, second and third waterway connections, and the reactor component and the thyristor heat sinks in the left valve unit are connected in series in the first waterway, right
  • the reactor component in the valve unit and each thyristor heat sink are serially connected in the second waterway
  • the respective resistance heat sinks in the left and right valve units are serially connected in the third waterway, the first, the second and the
  • There are fewer waterway nodes in the three waterways which effectively reduces the risk of water leakage in the waterway system.
  • the waterway structure is simple, which is beneficial to reduce the water in the water cooling system.
  • the design difficulty of the road structure in addition, each waterway effectively reduces the water pressure requirement in the water cooling system, further reduces the water leakage risk of the water cooling system, and improves the working life of the water cooling system.
  • the corresponding loading mechanism applies an axial loading force to the right side of the bearing structure of the ram to move the ram to the right, and the ejector applies a rightward direction to the valve block through the pressing structure.
  • the upper pressure stops the pressurization when the required pressure is reached.
  • the compression nut is adjusted to match the compression nut with the right plate support of the left end plate, and then the loading mechanism is removed to complete the crimping process.
  • the compression nut is axially moved and adjusted on the ram, the compression nut is not resisted by the elastic clamping device, which reduces the dynamic rotation of the screw on the compression nut and the screw on the ram.
  • Figure 1 is a schematic structural view of an embodiment of the present invention
  • Figure 2 is a schematic structural view of the bracket of Figure 1;
  • FIG. 3 is a schematic structural view of the valve module of Figure 1;
  • Figure 4 is a schematic structural view of the valve section of Figure 3;
  • Figure 5 is a schematic structural view of the frame of Figure 4.
  • Figure 6 is a schematic structural view of the elastic clamping device of Figure 4.
  • Figure 7 is a schematic view showing the structure of the pressing device of Figure 4.
  • FIG. 7 An embodiment of a thyristor converter valve assembly is shown in FIG. 7 : comprising a bracket, the bracket being composed of two parallel U-shaped insulating beams 23 and a plurality of beams 24 disposed between the two U-shaped insulating beams
  • the left valve unit 14 and the right valve unit 13 are arranged symmetrically on the bracket.
  • the left valve unit includes a reactor assembly 16 and a valve module.
  • the valve module includes a valve section 18, a damping resistor unit and a damping capacitor unit, and a damping capacitor unit. Including the damping capacitor 17 and the insulating bracket, the damping capacitor is arranged vertically upwards, which facilitates the heat dissipation of the capacitor post junction box.
  • the damping capacitor adopts a long and short combined structure, which can make the overall structure more compact under the condition of ensuring the electrical distance between the damping capacitor and the thyristor control unit.
  • the damping resistor unit includes a damping resistor and a resistor heat sink 15, and the valve module includes a valve group composed of a thyristor 6 and a thyristor radiator 5 disposed between the phases.
  • the structure of the right valve unit is the same as that of the left valve unit and will not be described in detail herein.
  • Each of the resistance radiator and the thyristor radiator has an inlet and an outlet facing outward
  • the thyristor converter valve assembly further includes the reactor component and the resistor a water cooling system for cooling the radiator and the thyristor radiator
  • the water cooling system includes a main inlet water passage and a main return water passage
  • the main inlet water passage and the main return water passage are connected through the first, second and third water passages arranged in parallel, in the left valve unit
  • the reactor assembly and each thyristor heat sink are serially connected in the first branch waterway 20
  • the reactor component and the thyristor heat sink in the right valve unit are serially connected in the second branch waterway 19, left
  • Each of the resistance heat sinks in the right valve unit is serially connected to the third water passage 21.
  • the water joints in each waterway in the water cooling system are arranged on the outer side of the corresponding components, and the corresponding components here refer to the corresponding intercrystalline tube radiator, the resistance radiator and the reactor component, and the bracket is below the water joints.
  • a water collector is provided correspondingly.
  • a water separator 22 is disposed between the left and right valve units on the bracket, and the water separator has a main water inlet communicating with the main water inlet and a main water inlet communicating with the main return water passage, first, second and third The inlet end and the outlet end of the branch waterway are all arranged on the water separator.
  • the function of the water separator is two. One is that when the main water pipe is directly used to inject water into the water separator, the operation of the entire water cooling system can be realized. Going to the installation work of the water pipes on the site, the operation is convenient, and the probability of water leakage due to on-site installation is greatly reduced. The other is that the water cooler can reasonably allocate the water required for each branch.
  • the valve segment in the above embodiment comprises a frame, the frame comprises an intermediate frame body and a left end plate 3 and a right end plate 11 disposed at the left and right ends of the intermediate frame body, wherein the right end plate is provided with an elastic clamping device 12, and the left end plate is provided with a top
  • the pressure device 2 is disposed between the elastic clamping device and the pressing device, and each of the intergranular tubes is supported on the corresponding heat sink by respective corresponding supporting columns.
  • the intermediate frame comprises four insulating pull rods 4 connected between the left and right end plates and two insulating support plates 8 connected between the left and right end plates, the two insulating support plates are arranged symmetrically, and one of the insulating support plates is arranged a first guiding support surface having a guiding direction extending in the left-right direction, and another insulating supporting plate provided with a second guiding supporting surface extending in the left-right direction, and each of the heat sinks is provided with the first and second The guiding support surface is guided by the sliding matching guiding support rod 7.
  • the guiding support rod is provided with a ring groove for guiding the guiding support rod and the corresponding guiding supporting surface, and the groove bottom of the ring groove is matched with the corresponding guiding supporting surface support, the ring groove
  • the groove walls on both sides can ensure that the radiator does not shift during the movement process
  • the guiding support rod is a cylindrical rod structure, and each radiator is mounted on the insulating support by the supporting support rod and the supporting bracket of the corresponding guiding supporting surface.
  • On the board there are also DC grading resistors, energizing resistors and thyristor control units on the heat sink.
  • the components can not only cool at the same time, but also each other. Wiring short distance, improved electrical performance components, but also the overall structure is very compact.
  • the elastic clamping device comprises a pressing pin 12-3 and a disc spring 12-1 which is disposed on the pressing pin through the retaining ring 12-2, and the pressing device comprises a jack 2-2 extending in the left-right direction of the axis, the jack
  • the right end of the valve body is provided with a top pressing structure which is press-fitted with the right end portion of the valve block, and the pressing structure is a pressure plate 2-1 connected to the ejector pin through the ball joint.
  • the universal joint comprises a ball head structure disposed at the right end of the jack and a spherical groove disposed on the platen and adapted to the ball head structure, and the top rod is disposed on the left side of the pressing structure for receiving by the corresponding loading mechanism
  • the bearing structure of the axial loading force, the bearing structure is composed of the left end surface of the ejector pin, and the outer periphery of the ejector pin is provided with a compression nut 2-3 for matching with the right plate support of the left end plate, the left end plate A guiding hole extending in the left-right direction of the guiding direction is disposed, and the left end of the pressing nut is fixed with a guiding sleeve 2-4 for guiding the sliding and wearing in the guiding hole to realize the guiding and moving movement of the ejector rod and the frame.
  • the elastic clamping device 12, the right conductive plate 10, the valve block, the left conductive plate 1 and the pressing device 2 are sequentially mounted on the frame, and the heat sinks in the valve group are mounted on the corresponding guiding support rods.
  • the insulating support plate not only ensures that the center lines of the heat sinks are on the same line, but also ensures that the heat sink can slide freely on the insulating support plate during the pressurization of the valve block, thereby ensuring the thyristor
  • the uniformity of the pressing force can also ensure that the heat sink and the thyristor are quickly replaced after the pressing force is completely released, and the replacement process is very convenient; the ram and the pressure plate are connected by the ball joint, so that the pressure plate has a certain application.
  • the pressure angle adjustment eliminates the uneven pressing force of the thyristor due to product or assembly error, and ensures the reliable crimping of the thyristor, thereby meeting the crimping requirements of the intergranular tubes of six inches or larger.
  • the four insulating tie rods and the two insulating support plates form an intermediate frame, which makes the structure of the frame simple and convenient to manufacture.
  • the pressing end of the hydraulic tool is mounted on the left end plate by a loading mechanism (such as a manual hydraulic tool), and the center shaft of the hydraulic tool is pressed against the ejector pin to deform the disc spring, and the instrument of the hydraulic tool is displayed.
  • a loading mechanism such as a manual hydraulic tool
  • the center shaft of the hydraulic tool is pressed against the ejector pin to deform the disc spring, and the instrument of the hydraulic tool is displayed.
  • stop the pressurization stop the pressurization, and then move the compression nut to the left until the compression nut is tightly fitted with the right plate support of the left end plate, the hydraulic tool is slowly relieved, and the hydraulic tool is moved after the pressure is released. Go, the valve section is crimped.
  • the pressure plate can also be fixedly disposed with the ejector pin.
  • the pressure plate When burning, when the axial end surface of the ejector pin has a large surface area, the pressure plate can also be omitted, and the pressing structure can be The right end surface of the ram is formed; the bearing structure can also be formed by a convex ring platform fixed in the middle of the ejector rod, and the pressing end of the loading mechanism can be a sleeve-like structure; the ejector rod can also be guided to the middle frame In the body, for example, a sleeve for guiding the ejector rod is fixed on the middle frame body, and the guide sleeve on the compression nut may not be provided at this time; the number of the insulation rod may also be three, five or more Many; the intermediate frame can also adopt other types of frame structure; the guiding support bar can also be a square rod structure.

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  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

提供了一种晶闸管换流阀组件，包括：托架，托架上布置有左阀单元（14）和右阀单元（13），每一个阀单元均包括电抗器组件电阻散热器（15）和晶闸管散热器（5），晶闸管换流阀组件还包括对电抗器组件、电阻散热器和晶闸管散热器进行冷却的水冷系统，水冷系统包括主进水路和主回水路，主进水路和主回水路通过并联设置的第一、第二和第三支水路（20，19，21）连通，左阀单元中的电抗器组件（16）和各晶闸管散热器（5）均串接于所述第一支水路（20）中，右阀单元中的电抗器组件（16）和各晶闸管散热器（5）均串接于所述第二支水路（19）中，左、右阀单元（14，13）中的各电阻散热器（15）均串接于所述第三支水路（21）中。提供了一种具有结构简单的水冷系统的晶闸管换流阀组件。

Description

一种晶闸管换流阀组件
技术领域
本发明涉及电力系统大功率电力电子换流阀领域，尤其涉及一种晶闸管换流 阀组件。
背景技术
换流阀作为高压直流输电系统的核心部件，其发展和应用已经有多年的历史。 现有的晶闸管换流阀组件如中国专利文献 CN101719719A公开的 "一种新型的晶 闸管换流阀阀模块"， 该阀模块包括托架， 托架上左右对称的布置有两个结构相 同的阀单元， 每一个阀单元均包括电抗器组件和阀模块， 阀模块包括阀段、 阻尼 电阻单元和阻尼电容单元， 阻尼电阻单元包括阻尼电阻和电阻散热器， 阀段包括 阀段框架， 阀段框架包括中间框体及设置于中间框体左右两端的左、右端板， 其 中右端板上设置有弹性夹紧装置，左端板上设置有顶压装置， 在弹性夹紧装置与 顶压装置之间安装有由相间设置的晶闸管和晶闸管散热器组成的阀组。各阀单元 中需要冷却的部件为电抗器组件、晶闸管和阻尼电阻， 在托架上设置有对上述这 些需要冷却的部件进行的水冷系统， 整个水冷系统为全并联水路。现有的这种换 流阀组件存在的问题在在于： 水冷系统采用全并联水路， 造成水路设计难度大， 水路接头多，漏水风险大， 水冷系统中的水路接头漏水很容易引起下层电气元件 发生短路事故； 另外， 全并联设计也需要水冷系统具有较大的水压， 进一步的增 加了水路系统的漏水风险。
发明内容
本发明的目的在于提供一种具有结构简单的水冷系统的晶闸管换流阀组件。 为了解决上述问题， 本发明的技术方案为：
一种晶间管换流阀组件，包括托架， 托架上布置有左右对称设置的左阀单元 和右阀单元，每一个阀单元均包括电抗器组件和阀模块， 阀模块包括阀段和阻尼 电阻单元， 阻尼电阻单元包括阻尼电阻和电阻散热器， 阀模块包括由相间设置的 晶闸管和晶闸管散热器组成的阀组，晶闸管换流阀组件还包括对所述电抗器组件、 电阻散热器和晶闸管散热器进行冷却的水冷系统，所述水冷系统包括主进水路和 主回水路， 主进水路和主回水路通过并联设置的第一、 第二和第三支水路连通， 左阀单元中的电抗器组件和各晶闸管散热器均串接于所述第一支水路中，右阀单 元中的电抗器组件和各晶闸管散热器均串接于所述第二支水路中，左、右阀单元 中的各电阻散热器均串接于所述第三支水路中。
所述的托架上于所述左、右阀单元之间设置有分水器， 分水器具有与所述主 进水路连通的主进水口、 与所述主回水路连通的主回水口， 所述第一、第二和第 三支水路的进水端和出水端均设置于所述分水器上。
水冷系统中各支水路中的水路接头均布置于对应元器件的外侧。
所述托架上于各水路接头的下方对应设置有集水器。
所述阀段还包括框架， 框架包括中间框体及设置于中间框体左右两端的左、 右端板， 其中右端板上设置有弹性夹紧装置， 左端板上设置有顶压装置， 所述阀 组设置于弹性夹紧装置与顶压装置之间，所述顶压装置包括轴线沿左右方向延伸、 并沿左右方向导向移动装配于所述框架上的顶杆，顶杆的右端设置有与所述阀组 左端部顶压配合的顶压结构，顶杆上于顶压结构的左方设置有用于承接由相应加 载机构施加的轴向加载力的承力结构，顶杆的外周旋装有用于与所述左端板的右 板面撑托配合的压紧螺母。
所述的顶压结构包括通过球形环形节与所述顶杆相连的压盘。
所述的承力结构由所述顶杆的左端面构成。
所述的左端板上设置有导向方向沿左右方向延伸的导向孔，所述压紧螺母的 左端固设有导向滑动穿装于所述导向孔中而实现所述顶杆与框架导向移动配合 的导向套。
所述的中间框体包括至少三根连接于所述左、 右端板之间的绝缘拉杆。
所述的左、右端板之间连接有两个对称布置的绝缘支撑板， 其中一个绝缘支 撑板上设置有导向方向沿左右方向延伸的第一导向支撑面，另一个绝缘支撑板上 设置有导向方向沿左右方向延伸的第二导向支撑面，各散热器上均设置有用于与 所述第一、二导向支撑面导向滑动配合的导向支撑杆， 各散热器通过导向支撑杆 与对应导向支撑面的撑托配合而架装于两个绝缘支撑板上。
本发明的有益效果为： 水冷系统包括两联设置的第一、第二和第三支水路连 通，左阀单元中的电抗器组件和各晶闸管散热器均串接于第一支水路中， 右阀单 元中的电抗器组件和各晶闸管散热器均串接于第二支水路中，左、右阀单元中的 各电阻散热器均串接于第三支水路中，第一、第二和第三支水路中的水路结点少， 有效降低水路系统的漏水风险， 同时各水路结构简单， 有利于降低水冷系统中水 路结构的设计难度； 另外各支水路有效降低水冷系统内的水压要求， 进一步的降 低了水冷系统的漏水风险， 提高了水冷系统的工作寿命。
进一步的，在阀段装配时， 相应加载机构对顶杆的承力结构上施加朝右方向 的轴向加载力，使顶杆朝右运动， 顶杆通过顶压结构对阀组施加朝右方向上的压 力， 当达到所需压力时， 停止加压， 此时调整压紧螺母使压紧螺母与左端板的右 板面撑托配合，然后将加载机构移走即可完成压接过程。压紧螺母在顶杆上轴向 移动调节时，压紧螺母不受弹性夹紧装置给予的阻力， 这就减小了压紧螺母上的 螺牙和顶杆上的螺牙所受得动态旋切阻力，顶杆和压紧螺母不易损坏， 保证了整 个顶压装置的使用寿命； 另外顶杆自身不旋转， 可以通过顶杆直接推压阀组， 不 需要再设置相应旋转运动与直线运动之间的转换结构，大大降低了顶压装置的结 构复杂程度。
附图说明
图 1是本发明的一个实施例的结构示意图；
图 2是图 1中托架的结构示意图；
图 3是图 1中阀模块的结构示意图；
图 4是图 3中阀段的结构示意图；
图 5是图 4中框架的结构示意图；
图 6是图 4中弹性夹紧装置的结构示意图；
图 7是图 4中顶压装置的结构示意图。
具体实施方式
一种晶闸管换流阀组件的实施例如图广 7所示： 包括托架， 托架由两个平行 设置的 U形绝缘梁 23和设置于两个 U形绝缘梁之间的多个横梁 24构成，托架上 布置有左右对称设置的左阀单元 14和右阀单元 13，左阀单元包括电抗器组件 16 和阀模块， 阀模块包括阀段 18、 阻尼电阻单元和阻尼电容单元， 阻尼电容单元 包括阻尼电容 17和绝缘支架， 阻尼电容垂直向上布置， 便于电容支柱接线盒散 热， 阻尼电容采用长短结合的结构形式， 可以在保证阻尼电容和晶闸管控制单元 的电气距离的条件下使得整体结构更加紧凑。阻尼电阻单元包括阻尼电阻和电阻 散热器 15， 阀模块包括由相间设置的晶闸管 6和晶闸管散热器 5组成的阀组。 右阀单元的结构与左阀单元的结构相同， 在此不再详述。各电阻散热器、 晶闸管 散热器的进、 出水口均朝外， 晶闸管换流阀组件还包括对所述电抗器组件、 电阻 散热器和晶闸管散热器进行冷却的水冷系统，水冷系统包括主进水路和主回水路， 主进水路和主回水路通过并联设置的第一、第二和第三支水路连通， 左阀单元中 的电抗器组件和各晶闸管散热器均串接于所述第一支水路 20中， 右阀单元中的 电抗器组件和各晶闸管散热器均串接于所述第二支水路 19中， 左、 右阀单元中 的各电阻散热器均串接于所述第三支水路 21中。 水冷系统中各支水路中的水路 接头均布置于对应元器件的外侧， 这里的对应元器件是指对应晶间管散热器、 电 阻散热器和电抗器组件， 托架上于各水路接头的下方对应设置有集水器。托架上 于左、右阀单元之间设置有分水器 22，分水器具有与主进水路连通的主进水口、 与主回水路连通的主回水口，第一、第二和第三支水路的进水端和出水端均设置 于分水器上， 分水器的作用有两个，一个是在现场使用时主水管直接向分水器注 水即可实现整个水冷系统的运作， 省去了现场各支水管的安装工作， 操作方便的 同时， 也大大降低了由于现场安装导致漏水现象发生的概率； 另一个是水冷器可 以对各支路所需水量进行合理的分配。
上述实施例中的阀段包括框架，框架包括中间框体及设置于中间框体左右两 端的左端板 3和右端板 11， 其中右端板上设置有弹性夹紧装置 12， 左端板上设 置有顶压装置 2， 阀组设置于弹性夹紧装置与顶压装置之间， 各晶间管分别通过 各自对应的支撑柱支撑在对应散热器上。中间框体包括连接于左、右端板之间的 四根绝缘拉杆 4及连接于左、 右端板之间的两个绝缘支撑板 8， 两个绝缘支撑板 对称布置，其中一个绝缘支撑板上设置有导向方向沿左右方向延伸的第一导向支 撑面， 另一个绝缘支撑板上设置有导向方向沿左右方向延伸的第二导向支撑面， 各散热器上均设置有用于与所述第一、二导向支撑面导向滑动配合的导向支撑杆 7，导向支撑杆上设置有用于实现导向支撑杆与对应导向支撑面导向配合的环槽， 环槽的槽底与对应导向支撑面撑托配合，环槽的两侧槽壁可以保证散热器在移动 过程中不会发生偏移， 导向支撑杆为柱形杆结构， 各散热器通过导向支撑杆与对 应导向支撑面的撑托配合而架装于绝缘支撑板上，在散热器上还设置有直流均压 电阻、 取能电阻、 晶闸管控制单元， 各元器件不仅可以同时冷却， 而且彼此间接 线距离较近， 提高了元器件的电气性能， 同时也使整体结构十分紧凑。 弹性夹紧 装置包括压紧销钉 12-3和通过挡圈 12-2定位套装于压紧销钉上的碟簧 12-1， 顶压装置包括轴线沿左右方向延伸的顶杆 2-2， 顶杆的右端设置有与所述阀组右 端部顶压配合的顶压结构， 顶压结构为通过球形万向节与顶杆相连的压盘 2-1， 万向节包括设置于顶杆右端部的球头结构和设置于压盘上的与球头结构适配的 球形槽，顶杆上于顶压结构的左方设置有用于承接由相应加载机构施加的轴向加 载力的承力结构，承力结构由顶杆的左端面构成， 顶杆的外周旋装有用于与左端 板的右板面撑托配合的压紧螺母 2-3， 左端板上设置有导向方向沿左右方向延伸 的导向孔，压紧螺母的左端固设有用于导向滑动穿装于导向孔中而实现顶杆与框 架导向移动配合的导向套 2-4。
阀段在装配时， 在框架上依次装入弹性夹紧装置 12、 右导电板 10、 阀组、 左导电板 1和顶压装置 2， 阀组中各散热器通过对应导向支撑杆架装于绝缘支撑 板上， 绝缘支撑板不仅保证了各散热器的中心线在同一直线上， 而且还可以保证 在对阀组加压过程中， 散热器可以在绝缘支撑板上自由滑动， 从而保证了晶闸管 压紧力的均匀性， 同时还能够保证在压紧力完全释放后， 散热器和晶闸管快速更 换， 更换过程十分方便； 顶杆与压盘通过球形万向节连接， 使得压盘具有一定的 施压角度调节量， 消除了由于产品或装配误差导致晶闸管压紧力不均匀， 保证晶 闸管可靠压接， 从而能够满足六英寸或者更大尺寸晶间管的压接要求。 四根绝缘 拉杆和两个绝缘支撑板构成中间框体， 使得框架的结构简单， 制作方便。
具体使用时， 通过加载机构（比如说手动液压工具） ， 将液压工具的加压端 头安装在左端板上， 液压工具的中心轴顶压顶杆， 使碟簧发生变形， 待液压工具 的仪表显示到所需压力时， 停止加压， 然后使压紧螺母朝左移动， 直至压紧螺母 与左端板的右板面撑托顶紧配合，液压工具缓慢泄压， 泄压结束后将液压工具移 走， 阀段压接结束。
在本晶闸管阀段的其它实施例中： 压盘还可以与顶杆固定设置， 当燃， 在顶 杆的轴向端面表面积较大时，压盘也可以不设， 此时顶压结构可以由顶杆的右端 面构成； 承力结构还可以由固设于顶杆中部的外凸环台构成， 此时加载机构的加 压端头可以是套状结构； 顶杆还可导向装配于中间框体上， 比如说在中间框体上 固设一个供顶杆导向穿过的穿套，此时压紧螺母上的导向套可以不设； 绝缘拉杆 的根数还可以是三根、 五根或更多； 中间框体还可以采用其它类型的框体结构； 导向支撑杆还可以是方形杆结构。

Claims

权利要求书
1、 一种晶间管换流阀组件， 包括托架， 托架上布置有左右对称设置的左阀单元 和右阀单元，每一个阀单元均包括电抗器组件和阀模块， 阀模块包括阀段和阻尼 电阻单元， 阻尼电阻单元包括阻尼电阻和电阻散热器， 阀模块包括由相间设置的 晶闸管和晶闸管散热器组成的阀组，晶闸管换流阀组件还包括对所述电抗器组件、 电阻散热器和晶闸管散热器进行冷却的水冷系统，其特征在于： 所述水冷系统包 括主进水路和主回水路， 主进水路和主回水路通过并联设置的第一、第二和第三 支水路连通，左阀单元中的电抗器组件和各晶间管散热器均串接于所述第一支水 路中， 右阀单元中的电抗器组件和各晶闸管散热器均串接于所述第二支水路中， 左、 右阀单元中的各电阻散热器均串接于所述第三支水路中。
2、 根据权利要求 1所述的晶间管换流阀组件， 其特征在于： 所述的托架上于所 述左、右阀单元之间设置有分水器，分水器具有与所述主进水路连通的主进水口、 与所述主回水路连通的主回水口，所述第一、第二和第三支水路的进水端和出水 端均设置于所述分水器上。
3、 根据权利要求 1所述的晶间管换流阀组件， 其特征在于： 水冷系统中各支水 路中的水路接头均布置于对应元器件的外侧。
4、 根据权利要求 3所述的晶间管换流阀组件， 其特征在于： 所述托架上于各水 路接头的下方对应设置有集水器。
5、 根据权利要求 1~4任意一项所述的晶间管换流阀组件， 其特征在于： 所述阀 段还包括框架，框架包括中间框体及设置于中间框体左右两端的左、右端板， 其中右端板上设置有弹性夹紧装置， 左端板上设置有顶压装置， 所述阀组设 置于弹性夹紧装置与顶压装置之间，所述顶压装置包括轴线沿左右方向延伸、 并沿左右方向导向移动装配于所述框架上的顶杆， 顶杆的右端设置有与所述 阀组左端部顶压配合的顶压结构， 顶杆上于顶压结构的左方设置有用于承接 由相应加载机构施加的轴向加载力的承力结构， 顶杆的外周旋装有用于与所 述左端板的右板面撑托配合的压紧螺母。
6、 根据权利要求 5所述的晶闸管换流阀组件， 其特征在于： 所述的顶压结构包 括通过球形环形节与所述顶杆相连的压盘。
7、 根据权利要求 5所述的晶闸管换流阀组件， 其特征在于： 所述的承力结构由 所述顶杆的左端面构成。
8、 根据权利要求 5所述的晶间管换流阀组件， 其特征在于： 所述的左端板上设 置有导向方向沿左右方向延伸的导向孔， 所述压紧螺母的左端固设有导向滑 动穿装于所述导向孔中而实现所述顶杆与框架导向移动配合的导向套。
9、 根据权利要求 5所述的晶闸管换流阀组件， 其特征在于： 所述的中间框体包 括至少三根连接于所述左、 右端板之间的绝缘拉杆。
10、 根据权利要求 5所述的晶闸管换流阀组件， 其特征在于： 所述的左、 右端板 之间连接有两个对称布置的绝缘支撑板，其中一个绝缘支撑板上设置有导向方向 沿左右方向延伸的第一导向支撑面，另一个绝缘支撑板上设置有导向方向沿左右 方向延伸的第二导向支撑面，各散热器上均设置有用于与所述第一、二导向支撑 面导向滑动配合的导向支撑杆，各散热器通过导向支撑杆与对应导向支撑面的撑 托配合而架装于两个绝缘支撑板上。
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