WO2015039459A1 - Device for checking reactor pressure vessel of nuclear power station - Google Patents
Device for checking reactor pressure vessel of nuclear power station Download PDFInfo
- Publication number
- WO2015039459A1 WO2015039459A1 PCT/CN2014/078617 CN2014078617W WO2015039459A1 WO 2015039459 A1 WO2015039459 A1 WO 2015039459A1 CN 2014078617 W CN2014078617 W CN 2014078617W WO 2015039459 A1 WO2015039459 A1 WO 2015039459A1
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- WIPO (PCT)
- Prior art keywords
- pressure vessel
- reactor pressure
- nuclear power
- power plant
- inspection
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/003—Remote inspection of vessels, e.g. pressure vessels
- G21C17/01—Inspection of the inner surfaces of vessels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Definitions
- the invention belongs to the technical field of nuclear reactor reactor pressure vessel inspection, and particularly relates to a nuclear power plant reactor pressure vessel inspection device.
- a reactor pressure vessel is a closed vessel that houses a nuclear reactor and withstands its enormous operating pressure. It is also called a nuclear reactor pressure shell and is a key component in a pressurized water reactor nuclear power plant.
- the reactor pressure vessel fixes and houses the core nuclear fuel assembly and the internal components of the reactor, so that the fission reaction of the nuclear fuel is restricted to a sealed space, which together with the primary circuit constitutes a pressure boundary of the high-pressure coolant, which prevents leakage of radioactive materials.
- the reactor pressure vessel is in a high temperature, high pressure, high radiation environment.
- the metal properties of the container material will gradually decrease, and the metal discontinuity will also occur. Therefore, it is very necessary to test the pressure vessel and find the dangerous defects therein so that it can be processed as soon as possible. Thereby maintaining and safeguarding the safety of nuclear power facilities and avoiding serious safety operations and nuclear leakage accidents.
- the inside of the vessel is a highly radioactive area, and the pressurized water reactor type pressure vessel is submerged under water to isolate nuclear radiation.
- a nuclear reactor pressure vessel inspection device that can be remotely controlled underwater is required.
- a nuclear reactor pressure vessel inspection device to carry out reactor pressure vessel inspection, and the pressure on domestic nuclear power plant reactors.
- our company has designed a nuclear power plant reactor pressure vessel inspection device. The inspection device performs inspection from the inside of the pressure vessel, and the environment can be checked either in the air or underwater.
- the existing nuclear reactor pressure vessel inspection device can only be inspected for a specific size nuclear reactor type, and has poor versatility; in addition, only one inspection tool can be used to inspect one position of the nuclear reactor pressure vessel for each inspection. Check efficiency is low.
- the technical problem to be solved by the present invention is that the existing nuclear reactor pressure vessel inspection device can inspect only one position of the nuclear reactor pressure vessel with one inspection tool, and the inspection efficiency is low.
- a nuclear power plant reactor pressure vessel inspection device comprises a column assembly and an inspection tool carrier platform, and the column assembly is provided with a plurality of inspection tool carrier platforms installed with nuclear power plant reactor pressure vessel inspection tools from top to bottom, each inspection tool
- the carrier platform is capable of up and down movement and plane rotation movement around the column assembly.
- the nuclear power plant reactor pressure vessel inspection apparatus further includes a lifting support assembly secured above the column assembly, the lifting support assembly being mounted above the vessel flange of the nuclear power plant reactor pressure vessel, the size of which can be adjusted according to the vessel flange size.
- the lifting support assembly may include a plurality of inverted "L" shaped support ribs, each of which is connected to the column assembly by a pad of adjustable thickness, and the lower end is connected to the container flange of the nuclear power plant reactor pressure vessel. Fixing: By adjusting the thickness of the spacers connected to the upper ends of the support ribs, the cross-sectional dimensions of the lower ends of the support ribs can be adjusted to match the dimensions of the container flange.
- the column assembly has an outer wall provided with a rack in the axial direction;
- the inspection tool carrying platform includes an inner tube and an outer tube, and the two are fixed by a slewing bearing;
- the inspection tool The inner cylinder of the carrying platform is provided with a lifting drive motor, a lifting gear and a supporting guide wheel: the lifting gear is matched with the rack of the column assembly, and the inspection tool is carried under the support of the supporting guide wheel and the lifting drive motor.
- the inspection tool carries the outer cylinder of the platform, and is provided with a ring gear ring in the horizontal direction, which drives the outer cylinder to perform horizontal rotation movement under the driving of the rotary transmission motor mounted on the inner cylinder;
- the outer cylinder is also provided with a plurality of mounting holes, and a plurality of inspection tools can be installed at the same time.
- the column and the outer wall may further be provided with a guide rail and a groove in the axial direction, and the length of the column assembly is adjustable; the inspection tool carries the outer cylinder of the platform, and the upper edge and the lower edge may be evenly distributed with a circle of installation holes. Form a circumferential flange mounting datum.
- the nuclear power plant reactor pressure vessel inspection device of the present invention can simultaneously perform multi-position and multi-inspection area inspection on a nuclear reactor pressure vessel by using a plurality of inspection tools, thereby significantly improving inspection efficiency and shortening the occupation time;
- the nuclear power plant reactor pressure vessel inspection device of the present invention can significantly improve the versatility by adjusting the thickness of the spacer so that the lifting support assembly can match the container flanges of different sizes;
- the inspection tool carrier platform reaches the inside of the pressure vessel cylinder along the column assembly, and is not subject to the wire rope type lifting and extension generally used in the prior art.
- the limitation of the sleeve-type lifting and lowering enables multiple inspection tool delivery platforms to be distributed in different height areas inside the pressure vessel to realize simultaneous inspection of multiple positions;
- the inspection tool carrier platform outer cylinder is provided with a plurality of mounting holes, and a plurality of inspection tools can be installed at the same time;
- the inspection device uses the flange of the flange surface of the pressure vessel as the positioning reference for the inspection of the pressure vessel. Since the flange of the pressure vessel is the machined surface, the machining precision is high, and the pressure vessel is inspected for the circumferential direction and the shaft. The determination of the positioning reference is fast and accurate.
- Figure 1 is a cross-sectional view showing a nuclear power plant reactor pressure vessel inspection device of the present invention
- FIG. 2 is a top plan view of a nuclear power plant reactor pressure vessel inspection device of the present invention
- Figure 3 (a), (b), (c), (d), (e), (f) are schematic diagrams of the inspection platform for the installation of different inspection tools
- Figure 4 is a schematic view showing the structure of the lifting support assembly
- Figure 5 (a) is a schematic view of the structure of the column assembly
- Figure 5 (b) is a partial enlarged view of the column assembly
- Figure 5 (c) is a cross-sectional view of the column assembly with grooves.
- Figure 6 (a), 6 (bl) is a schematic view of the nuclear reactor reactor pressure vessel inspection device in the pressure vessel flange assembly;
- Figure 6 (b2) is a top view of 6 (bl);
- Figure 6 (b3) is a partial enlarged view of 6 (bl).
- 1-lifting support assembly 2-post assembly, 3-check tool carrier, 4-pad, 5-rack, 6-rail, 7-groove, 8-circle flange mounting datum .
- the nuclear power plant reactor pressure vessel inspection device of the present invention comprises a lifting support assembly 1, a column assembly 2 and an inspection tool carrier platform 3.
- the column assembly 2 is provided with a plurality of inspection tool carrier platforms 3 installed with nuclear power plant reactor pressure vessel inspection tools from top to bottom; each inspection tool carrier platform 3 is capable of up and down movement and plane rotation motion around the column assembly 2
- the lifting support assembly 1 is fixed above the column assembly 2 for the technician to lift the nuclear power plant reactor pressure vessel inspection device to the nuclear power plant reactor pressure vessel for device maintenance and inspection tool replacement.
- the lifting support assembly 1 is installed above the container flange of the reactor pressure vessel of the nuclear power plant, and the size thereof can be adjusted according to the size of the container flange of the nuclear reactor of different sizes.
- the lifting support assembly 1 includes a plurality of inverted "L" shaped supporting ribs, and the upper end of each supporting rib and the column assembly 2 are connected by a pad 4 of adjustable thickness, and the lower end and the nuclear power plant reactor pressure The container flange of the container is fixed.
- the cross-sectional dimensions of the lower ends of the plurality of support ribs can be adjusted to match the size of the container flange, and the nuclear reactor type for different sizes can be inspected, and the versatility can be checked. Significant improvements have been made.
- the column assembly 2 the outer wall is provided with a rack 5 and a plurality of rails 6 in the axial direction: the rack 5 is used for matching the gears of the inspection tool carrier platform 3 to perform the lifting movement of the inspection tool carrier platform 3; Limiting the radial movement and circumferential rotation of the inspection tool carrier platform 3.
- the column assembly 2 is formed by connecting a plurality of outer walls with small racks 5 and a small column of guide rails 6 in the axial direction, so as to adjust the length of the column assembly 2 for nuclear reactor reactor pressure vessels of different depths.
- the column assembly 2 may also be provided with a recess 7 for placing a cable in the axial direction.
- the inspection tool carrying platform 3 includes an inner cylinder and an outer cylinder, both of which are fixed by a slewing bearing.
- the inner cylinder is provided with a lifting drive motor, a lifting transmission gear and a supporting guide wheel: the lifting transmission gear is matched with the rack 5 of the column assembly 2, and the inspection tool carrier platform is realized under the support of the supporting guide wheel and the lifting drive motor. 3 The lifting movement along the column assembly 2.
- the outer cylinder is provided with a ring gear ring in the horizontal direction, and the outer cylinder is driven to rotate horizontally under the driving of the rotary transmission motor mounted on the inner cylinder; in addition, the outer cylinder is also provided with a plurality of mounting holes, which can be installed at the same time.
- the upper and lower edges of the outer cylinder are uniformly distributed with a ring of mounting holes to form a circumferential flange-type mounting reference surface 8: the mounting brackets of different inspection tools are installed on the flange-mounted reference surface circumference according to actual needs. Any position of the direction enables the same inspection tool carrier platform 3 to adjust and install a plurality of inspection tools according to the position of the installation hole, so that multiple inspection tools in the same inspection area can enter multiple nozzles in parallel or simultaneously at multiple angles.
- the seam scanning can significantly improve the inspection efficiency; the components of other structures can be installed on the flange mounting reference surface, the different inspection devices can be expanded, and the inspection device mounting points can be added to realize subsequent upgrades.
- a plurality of inspection tool delivery platforms 3 perform multi-position and multi-area inspections such as take-over inspection area, upper cylinder inspection area, and lower cylinder inspection area in the nuclear power plant reactor pressure vessel, thereby improving inspection efficiency and shortening the occupation time
- other platforms can perform complementary inspections, which improves the reliability of the inspection device.
- the nuclear power plant reactor pressure vessel inspection device of the present invention is mainly installed and fixed on the pressure vessel in two ways: (1) is fixed on the end face of the flange of the pressure vessel, and a guide key is mounted on the lower part of the support rib, and is inserted into the interior of the keyway to realize The inspection device is determined in the axial and circumferential positioning of the pressure vessel, see Figure 6 (bl) ⁇ Figure 6 (b3); (2) Mounted on the flanged hole of the pressure vessel, the support ribs pass through the top cover of the nuclear power plant Mounting guide pin, placed on the flange surface.
- the guide pin is at 0° to determine the axial and circumferential reference, while the support ribs and the flange are mounted with a 90° angled automatic two-wheeled foot that automatically fits over the flange and the stop face, between the support leg and the guide pin Locked by the cylinder clamp, see Figure 6 (a).
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
A device for checking a reactor pressure vessel of a nuclear power station belongs to the technical field of checking a reactor pressure vessel of a nuclear power station. The device comprises a column assembly and check tool carrying platforms; the plurality of check tool carrying platforms with check tools for checking the reactor pressure vessel of the nuclear power station mounted thereon are arranged on the column assembly from top to bottom; each check tool carrying platform can perform an up-and-down lifting motion and a planar rotation motion about the column assembly. Such a technical problem is addressed that the existing devices for checking the reactor pressure vessel are low in check efficiency; and a plurality of check tools can be used simultaneously to check multiple locations and multiple checked areas of the reactor pressure vessel, and thereby the check efficiency is greatly improved and the reactor occupation time is shortened.
Description
一种核电站反应堆压力容器检查装置 技术领域 Nuclear power plant reactor pressure vessel inspection device
本发明属于核电站反应堆压力容器检査技术领域， 具体涉及一种核电站 反应堆压力容器检査装置。 说 The invention belongs to the technical field of nuclear reactor reactor pressure vessel inspection, and particularly relates to a nuclear power plant reactor pressure vessel inspection device. Say
背景技术 Background technique
核反应堆压力容器 （reactor pressure vessel) 是安置核反应堆并承受其巨 大运行压力的密闭容器， 也称核反应堆压力壳， 是压水堆核电站中的关键设 A reactor pressure vessel is a closed vessel that houses a nuclear reactor and withstands its enormous operating pressure. It is also called a nuclear reactor pressure shell and is a key component in a pressurized water reactor nuclear power plant.
书 Book
备， 具有制造技术标准高、 难度大和周期长等特点， 而且是不可更换的设备， 必须保证其在核电站多于 40年的寿命期内绝对安全可靠。反应堆压力容器固 定和包容堆芯核燃料组件及堆内构件， 使核燃料的裂变反应限制在一个密封 的空间内进行， 它与一回路管道共同组成高压冷却剂的压力边界， 是防止放 射性物质外泄的第二道屏障之一。 It has the characteristics of high manufacturing technology standards, difficulty and long cycle, and it is non-replaceable equipment. It must be guaranteed to be absolutely safe and reliable during the life of the nuclear power plant for more than 40 years. The reactor pressure vessel fixes and houses the core nuclear fuel assembly and the internal components of the reactor, so that the fission reaction of the nuclear fuel is restricted to a sealed space, which together with the primary circuit constitutes a pressure boundary of the high-pressure coolant, which prevents leakage of radioactive materials. One of the second barriers.
在核电站运行过程中， 反应堆压力容器在高温、 高压、 高辐射的环境中。 随着运行时间的增加， 容器材料的金属性能会逐渐降低， 金属不连续性也会 产生， 所以十分有必要对压力容器进行检测， 以及时发现其中的危险性缺陷， 使其能够得到尽快处理， 从而维护和保障核电设施的安全， 避免出现严重的 安全运行与核泄漏事故。 During nuclear power plant operation, the reactor pressure vessel is in a high temperature, high pressure, high radiation environment. As the running time increases, the metal properties of the container material will gradually decrease, and the metal discontinuity will also occur. Therefore, it is very necessary to test the pressure vessel and find the dangerous defects therein so that it can be processed as soon as possible. Thereby maintaining and safeguarding the safety of nuclear power facilities and avoiding serious safety operations and nuclear leakage accidents.
核反应堆压力容器在电站运行后， 容器内部为高放射性区域， 压水堆型 的压力容器淹没在水下， 隔绝核辐射。 综合上述情况需要一套可以在水下远 程遥控实施的核反应堆压力容器检査的装置， 目前世界上只有少数核发达国 家研制了核反应堆压力容器检査装置实施反应堆压力容器检査， 对国内核电 站反应堆压力容器在役检査技术存在封锁垄断， 每次实施检査均需要付出高
昂的代价。 我司经过多年的在役检査技术积累， 设计出一种核电站反应堆压 力容器检査装置， 该检査装置从压力容器内部实施检査， 检査环境既可以空 气中， 也可以水下。 After the nuclear reactor pressure vessel is operated, the inside of the vessel is a highly radioactive area, and the pressurized water reactor type pressure vessel is submerged under water to isolate nuclear radiation. In view of the above situation, a nuclear reactor pressure vessel inspection device that can be remotely controlled underwater is required. At present, only a few nuclear developed countries in the world have developed a nuclear reactor pressure vessel inspection device to carry out reactor pressure vessel inspection, and the pressure on domestic nuclear power plant reactors. There is a block monopoly on the in-service inspection technology of containers, and each inspection requires a high cost. The price of ang. After years of in-service inspection technology accumulation, our company has designed a nuclear power plant reactor pressure vessel inspection device. The inspection device performs inspection from the inside of the pressure vessel, and the environment can be checked either in the air or underwater.
现有核反应堆压力容器检査装置， 只能针对特定尺寸的核电堆型进行检 査， 通用性差； 此外， 每次检査仅能使用一个检査工具对核反应堆压力容器 的一个位置进行检査， 检査效率低。 The existing nuclear reactor pressure vessel inspection device can only be inspected for a specific size nuclear reactor type, and has poor versatility; in addition, only one inspection tool can be used to inspect one position of the nuclear reactor pressure vessel for each inspection. Check efficiency is low.
发明内容 Summary of the invention
本发明需要解决的技术问题为： 现有核反应堆压力容器检査装置每次检 査仅能使用一个检査工具对核反应堆压力容器的一个位置进行检査， 检査效 率低。 The technical problem to be solved by the present invention is that the existing nuclear reactor pressure vessel inspection device can inspect only one position of the nuclear reactor pressure vessel with one inspection tool, and the inspection efficiency is low.
本发明的技术方案如下所述： The technical solution of the present invention is as follows:
一种核电站反应堆压力容器检査装置， 包括立柱组件和检査工具运载平 台， 立柱组件自上而下设置多个安装有核电站反应堆压力容器检査工具的检 査工具运载平台， 每个检査工具运载平台能够绕立柱组件进行上下升降运动 和平面旋转运动。 A nuclear power plant reactor pressure vessel inspection device comprises a column assembly and an inspection tool carrier platform, and the column assembly is provided with a plurality of inspection tool carrier platforms installed with nuclear power plant reactor pressure vessel inspection tools from top to bottom, each inspection tool The carrier platform is capable of up and down movement and plane rotation movement around the column assembly.
作为优选方案， 核电站反应堆压力容器检査装置还包括固定于立柱组件 上方的提升支撑组件， 提升支撑组件安装于核电站反应堆压力容器的容器法 兰上方， 其尺寸能够根据容器法兰尺寸进行调节。 例如： 所述提升支撑组件 可以包括若干根倒 " L "形支撑筋， 每根支撑筋上端与立柱组件之间通过厚度 可调的垫块相连接， 下端与核电站反应堆压力容器的容器法兰相固定： 通过 调节支撑筋上端所连接的垫块的厚度， 能够调整若干根支撑筋下端所围成的 截面尺寸， 使其与容器法兰尺寸相匹配。 Preferably, the nuclear power plant reactor pressure vessel inspection apparatus further includes a lifting support assembly secured above the column assembly, the lifting support assembly being mounted above the vessel flange of the nuclear power plant reactor pressure vessel, the size of which can be adjusted according to the vessel flange size. For example: the lifting support assembly may include a plurality of inverted "L" shaped support ribs, each of which is connected to the column assembly by a pad of adjustable thickness, and the lower end is connected to the container flange of the nuclear power plant reactor pressure vessel. Fixing: By adjusting the thickness of the spacers connected to the upper ends of the support ribs, the cross-sectional dimensions of the lower ends of the support ribs can be adjusted to match the dimensions of the container flange.
核电站反应堆压力容器检査装置在压力容器上的安装固定主要有两种方 式： （1 ) 固定在压力容器法兰止口端面上， 支撑筋下部安装有导向键， 插入 键槽内部， 实现检査装置在压力容器轴向、 周向定位基准确定， 见图 6 (b ) ；
( 2 )安装放置在压力容器法兰孔带面上， 支撑筋穿过核电站顶盖安装用导向 销， 落置在法兰面上。 导向销在 0°， 以此确定轴向、 周向基准， 同时支撑筋 与法兰安装采用 90°夹角的双轮脚自动贴合在法兰和止口面，支撑腿和导向销 之间通过气缸夹紧装置锁固， 见图 6 ( a) 。 There are two main ways to install and fix the nuclear power plant reactor pressure vessel inspection device on the pressure vessel: (1) It is fixed on the end face of the pressure vessel flange, and the lower part of the support rib is equipped with a guide key, which is inserted into the keyway to realize the inspection device. The axial and circumferential positioning reference of the pressure vessel is determined, see Figure 6 (b); (2) The installation is placed on the flange hole surface of the pressure vessel, and the support rib passes through the guide pin for the installation of the top cover of the nuclear power plant and falls on the flange surface. The guide pin is at 0° to determine the axial and circumferential reference. At the same time, the support rib and the flange are mounted with a 90° angle. The two casters automatically fit between the flange and the stop face, between the support leg and the guide pin. Locked by the cylinder clamp, see Figure 6 (a).
作为进一歩的优选方案， 所述立柱组件， 外壁沿轴向设有一根齿条； 所 述检査工具运载平台， 包括内筒和外筒， 二者通过回转轴承相固定； 所述检 査工具运载平台内筒， 设有升降传动电机、 升降传动齿轮和支撑导轮： 升降 传动齿轮与立柱组件的齿条相匹配， 在支撑导轮的支撑和升降传动电机的驱 动下， 实现检査工具运载平台沿立柱组件的升降运动； 所述检査工具运载平 台外筒， 沿水平方向设有一圈齿圈， 其在安装于内筒的旋转传动电机的驱动 下， 带动外筒进行水平旋转运动； 此外， 外筒还设有多个安装孔， 能够同时 安装多个检査工具。 As a further preferred embodiment, the column assembly has an outer wall provided with a rack in the axial direction; the inspection tool carrying platform includes an inner tube and an outer tube, and the two are fixed by a slewing bearing; the inspection tool The inner cylinder of the carrying platform is provided with a lifting drive motor, a lifting gear and a supporting guide wheel: the lifting gear is matched with the rack of the column assembly, and the inspection tool is carried under the support of the supporting guide wheel and the lifting drive motor. The lifting movement of the platform along the column assembly; the inspection tool carries the outer cylinder of the platform, and is provided with a ring gear ring in the horizontal direction, which drives the outer cylinder to perform horizontal rotation movement under the driving of the rotary transmission motor mounted on the inner cylinder; The outer cylinder is also provided with a plurality of mounting holes, and a plurality of inspection tools can be installed at the same time.
此外， 所述立柱且外壁沿轴向还可以设有导轨和凹槽， 且立柱组件长度 可调； 所述检査工具运载平台外筒， 上沿、 下沿可以各均匀分布有一圈安装 孔， 形成圆周法兰式安装基准面。 In addition, the column and the outer wall may further be provided with a guide rail and a groove in the axial direction, and the length of the column assembly is adjustable; the inspection tool carries the outer cylinder of the platform, and the upper edge and the lower edge may be evenly distributed with a circle of installation holes. Form a circumferential flange mounting datum.
本发明的有益效果为： The beneficial effects of the invention are:
( 1 ) 本发明的核电站反应堆压力容器检査装置，能够同时使用多个检査 工具对核反应堆压力容器进行多位置多检査区域检査，显著提高了检査效率、 缩短了占堆时间； (1) The nuclear power plant reactor pressure vessel inspection device of the present invention can simultaneously perform multi-position and multi-inspection area inspection on a nuclear reactor pressure vessel by using a plurality of inspection tools, thereby significantly improving inspection efficiency and shortening the occupation time;
( 2 ) 本发明的核电站反应堆压力容器检査装置，当某个检査工具运载平 台出现故障时， 其他平台可以互补实施检査， 提高了检査装置的可靠性； (2) The nuclear power plant reactor pressure vessel inspection device of the present invention, when an inspection tool carrier platform fails, the other platforms can complement the inspection, thereby improving the reliability of the inspection device;
( 3 ) 本发明的核电站反应堆压力容器检査装置，通过调节垫块厚度使提 升支撑组件能够匹配不同尺寸的容器法兰， 通用性得到明显改善； (3) The nuclear power plant reactor pressure vessel inspection device of the present invention can significantly improve the versatility by adjusting the thickness of the spacer so that the lifting support assembly can match the container flanges of different sizes;
(4 ) 本发明的核电站反应堆压力容器检査装置，检査工具运载平台沿立 柱组件到达压力容器筒内部， 不受现有技术中普遍采用的钢丝绳式升降、 伸
缩套筒式升降的限制， 实现多个检査工具运载平台在压力容器内部不同高度 区域分布， 实现多位置同时检査； (4) The nuclear power plant reactor pressure vessel inspection device of the present invention, the inspection tool carrier platform reaches the inside of the pressure vessel cylinder along the column assembly, and is not subject to the wire rope type lifting and extension generally used in the prior art. The limitation of the sleeve-type lifting and lowering enables multiple inspection tool delivery platforms to be distributed in different height areas inside the pressure vessel to realize simultaneous inspection of multiple positions;
(5 ) 本发明的核电站反应堆压力容器检査装置，检査工具运载平台外筒 设有多个安装孔， 能够同时安装多个检査工具； (5) The nuclear power plant reactor pressure vessel inspection device of the present invention, the inspection tool carrier platform outer cylinder is provided with a plurality of mounting holes, and a plurality of inspection tools can be installed at the same time;
(6) 检査装置利用压力容器法兰面的止口，作为压力容器检査的定位基 准， 由于压力容器法兰止口为机加工面， 加工精度高， 实现压力容器检査周 向、 轴向定位基准的确定快速、 准确。 (6) The inspection device uses the flange of the flange surface of the pressure vessel as the positioning reference for the inspection of the pressure vessel. Since the flange of the pressure vessel is the machined surface, the machining precision is high, and the pressure vessel is inspected for the circumferential direction and the shaft. The determination of the positioning reference is fast and accurate.
國删 Country deletion
图 1为本发明核电站反应堆压力容器检査装置的剖面图； Figure 1 is a cross-sectional view showing a nuclear power plant reactor pressure vessel inspection device of the present invention;
图 2为本发明核电站反应堆压力容器检査装置的俯视图； 2 is a top plan view of a nuclear power plant reactor pressure vessel inspection device of the present invention;
图 3 (a)、 （b)、 （c)、 （d)、 （e)、 (f)为安装有不同检査工具的检査工具 运载平台示意图； Figure 3 (a), (b), (c), (d), (e), (f) are schematic diagrams of the inspection platform for the installation of different inspection tools;
图 4为提升支撑组件结构示意图； Figure 4 is a schematic view showing the structure of the lifting support assembly;
图 5 (a) 为立柱组件结构示意图； Figure 5 (a) is a schematic view of the structure of the column assembly;
图 5 (b) 为立柱组件局部放大图； Figure 5 (b) is a partial enlarged view of the column assembly;
图 5 (c) 为设有凹槽的立柱组件截面图。 Figure 5 (c) is a cross-sectional view of the column assembly with grooves.
图 6 ( a) 、 6 (bl ) 为本发明核电站反应堆压力容器检査装置在压力容 器法兰组件的安放示意图； Figure 6 (a), 6 (bl) is a schematic view of the nuclear reactor reactor pressure vessel inspection device in the pressure vessel flange assembly;
图 6 (b2) 为 6 (bl ) 的俯视图； Figure 6 (b2) is a top view of 6 (bl);
图 6 (b3 ) 为 6 (bl ) 的局部放大图。 Figure 6 (b3) is a partial enlarged view of 6 (bl).
图中， 1-提升支撑组件， 2-立柱组件， 3-检査工具运载平台， 4-垫块， 5- 齿条， 6-导轨， 7-凹槽， 8-圆周法兰式安装基准面。 In the figure, 1-lifting support assembly, 2-post assembly, 3-check tool carrier, 4-pad, 5-rack, 6-rail, 7-groove, 8-circle flange mounting datum .
具体实 式 Specific form
下面结合附图和实施例对本发明的核电站反应堆压力容器检査装置进行 详细说明。
本发明的核电站反应堆压力容器检査装置， 包括提升支撑组件 1、 立柱 组件 2和检査工具运载平台 3。 其中， 立柱组件 2 自上而下设置多个安装有 核电站反应堆压力容器检査工具的检査工具运载平台 3; 每个检査工具运载 平台 3能够绕立柱组件 2进行上下升降运动和平面旋转运动； 提升支撑组件 1 固定于立柱组件 2上方， 用于技术人员将核电站反应堆压力容器检査装置 提升至核电站反应堆压力容器外， 进行装置检修和检査工具更换。 The nuclear power plant reactor pressure vessel inspection device of the present invention will be described in detail below with reference to the accompanying drawings and embodiments. The nuclear power plant reactor pressure vessel inspection device of the present invention comprises a lifting support assembly 1, a column assembly 2 and an inspection tool carrier platform 3. Wherein, the column assembly 2 is provided with a plurality of inspection tool carrier platforms 3 installed with nuclear power plant reactor pressure vessel inspection tools from top to bottom; each inspection tool carrier platform 3 is capable of up and down movement and plane rotation motion around the column assembly 2 The lifting support assembly 1 is fixed above the column assembly 2 for the technician to lift the nuclear power plant reactor pressure vessel inspection device to the nuclear power plant reactor pressure vessel for device maintenance and inspection tool replacement.
所述提升支撑组件 1， 安装于核电站反应堆压力容器的容器法兰上方， 其尺寸可以根据不同尺寸核电堆型的容器法兰尺寸进行调节。 本实施例中， 所述提升支撑组件 1包括若干根倒 " L"形支撑筋， 每根支撑筋上端与立柱组 件 2组件之间通过厚度可调的垫块 4相连接， 下端与核电站反应堆压力容器 的容器法兰相固定。 通过调节支撑筋上端所连接的垫块 4的厚度， 能够调整 若干根支撑筋下端所围成的截面尺寸， 使其匹配容器法兰尺寸， 实现针对不 同尺寸的核电堆型进行检査， 通用性得到显著改善。 The lifting support assembly 1 is installed above the container flange of the reactor pressure vessel of the nuclear power plant, and the size thereof can be adjusted according to the size of the container flange of the nuclear reactor of different sizes. In this embodiment, the lifting support assembly 1 includes a plurality of inverted "L" shaped supporting ribs, and the upper end of each supporting rib and the column assembly 2 are connected by a pad 4 of adjustable thickness, and the lower end and the nuclear power plant reactor pressure The container flange of the container is fixed. By adjusting the thickness of the spacer 4 connected to the upper end of the support rib, the cross-sectional dimensions of the lower ends of the plurality of support ribs can be adjusted to match the size of the container flange, and the nuclear reactor type for different sizes can be inspected, and the versatility can be checked. Significant improvements have been made.
所述立柱组件 2， 外壁沿轴向设有一根齿条 5和若干根导轨 6: 齿条 5用 于匹配检査工具运载平台 3的齿轮进行检査工具运载平台 3升降运动； 导轨 6用于限制检査工具运载平台 3 的径向运动和周向旋转。 本实施例中， 立柱 组件 2由多节外壁均沿轴向设有齿条 5和导轨 6的小立柱连接而成， 以便于 针对不同深度的核电站反应堆压力容器调整立柱组件 2长度。作为优选方案， 所述立柱组件 2沿轴向还可以设有用于放置电缆的凹槽 7。 The column assembly 2, the outer wall is provided with a rack 5 and a plurality of rails 6 in the axial direction: the rack 5 is used for matching the gears of the inspection tool carrier platform 3 to perform the lifting movement of the inspection tool carrier platform 3; Limiting the radial movement and circumferential rotation of the inspection tool carrier platform 3. In this embodiment, the column assembly 2 is formed by connecting a plurality of outer walls with small racks 5 and a small column of guide rails 6 in the axial direction, so as to adjust the length of the column assembly 2 for nuclear reactor reactor pressure vessels of different depths. Preferably, the column assembly 2 may also be provided with a recess 7 for placing a cable in the axial direction.
所述检査工具运载平台 3， 包括内筒和外筒， 二者通过回转轴承相固定。 内筒设有升降传动电机、 升降传动齿轮和支撑导轮： 升降传动齿轮与立柱组 件 2的齿条 5相匹配， 在支撑导轮的支撑和升降传动电机的驱动下， 实现检 査工具运载平台 3沿立柱组件 2的升降运动。外筒沿水平方向设有一圈齿圈， 其在安装于内筒的旋转传动电机的驱动下， 带动外筒进行水平旋转运动； 此 外， 外筒还设有多个安装孔， 能够同时安装多个检査工具， 实现核电站反应
堆压力容器筒体内壁的同时扫査。 本实施例中， 外筒的上沿、 下沿各均匀分 布有一圈安装孔， 形成圆周法兰式安装基准面 8: 不同检査工具的安装座根 据实际需要安装在法兰式安装基准面圆周方向的任意位置， 使得同一检査工 具运载平台 3既可以根据安装孔位置调整安装多个检査工具， 实现同一检査 区域多个检査工具并行进入多个接管或在多个角度同时实施焊缝扫査， 显著 提高检査效率； 又可以将其它结构的部件安装在法兰式安装基准面上， 扩展 不同的检査装置， 增加检査装置挂装点， 实现后续升级改造。 The inspection tool carrying platform 3 includes an inner cylinder and an outer cylinder, both of which are fixed by a slewing bearing. The inner cylinder is provided with a lifting drive motor, a lifting transmission gear and a supporting guide wheel: the lifting transmission gear is matched with the rack 5 of the column assembly 2, and the inspection tool carrier platform is realized under the support of the supporting guide wheel and the lifting drive motor. 3 The lifting movement along the column assembly 2. The outer cylinder is provided with a ring gear ring in the horizontal direction, and the outer cylinder is driven to rotate horizontally under the driving of the rotary transmission motor mounted on the inner cylinder; in addition, the outer cylinder is also provided with a plurality of mounting holes, which can be installed at the same time. Inspection tools to achieve nuclear power plant response Simultaneous scanning of the inner wall of the pressure vessel cylinder. In this embodiment, the upper and lower edges of the outer cylinder are uniformly distributed with a ring of mounting holes to form a circumferential flange-type mounting reference surface 8: the mounting brackets of different inspection tools are installed on the flange-mounted reference surface circumference according to actual needs. Any position of the direction enables the same inspection tool carrier platform 3 to adjust and install a plurality of inspection tools according to the position of the installation hole, so that multiple inspection tools in the same inspection area can enter multiple nozzles in parallel or simultaneously at multiple angles. The seam scanning can significantly improve the inspection efficiency; the components of other structures can be installed on the flange mounting reference surface, the different inspection devices can be expanded, and the inspection device mounting points can be added to realize subsequent upgrades.
多个检査工具运载平台 3 在核电站反应堆压力容器内进行接管检査区 域、 上筒体检査区域、 下筒体检査区域等多位置多区域检査， 提高了检査效 率， 缩短了占堆时间； 当某个检査工具运载平台 3出现故障时， 其他平台可 以互补实施检査， 提高了检査装置的可靠性。 A plurality of inspection tool delivery platforms 3 perform multi-position and multi-area inspections such as take-over inspection area, upper cylinder inspection area, and lower cylinder inspection area in the nuclear power plant reactor pressure vessel, thereby improving inspection efficiency and shortening the occupation time When an inspection tool carrier platform 3 fails, other platforms can perform complementary inspections, which improves the reliability of the inspection device.
本发明的核电站反应堆压力容器检査装置在压力容器上的安装固定主要 有两种方式： （1 ) 固定在压力容器法兰止口端面上， 支撑筋下部安装有导向 键， 插入键槽内部， 实现检査装置在压力容器轴向、 周向定位基准确定， 见 图 6 (bl )〜图 6 (b3 ) ； (2) 安装放置在压力容器法兰孔带面上， 支撑筋穿 过核电站顶盖安装用导向销， 落置在法兰面上。 导向销在 0°， 以此确定轴向、 周向基准，同时支撑筋与法兰安装采用 90°夹角的双轮脚自动贴合在法兰和止 口面， 支撑腿和导向销之间通过气缸夹紧装置锁固， 见图 6 (a) 。
The nuclear power plant reactor pressure vessel inspection device of the present invention is mainly installed and fixed on the pressure vessel in two ways: (1) is fixed on the end face of the flange of the pressure vessel, and a guide key is mounted on the lower part of the support rib, and is inserted into the interior of the keyway to realize The inspection device is determined in the axial and circumferential positioning of the pressure vessel, see Figure 6 (bl) ~ Figure 6 (b3); (2) Mounted on the flanged hole of the pressure vessel, the support ribs pass through the top cover of the nuclear power plant Mounting guide pin, placed on the flange surface. The guide pin is at 0° to determine the axial and circumferential reference, while the support ribs and the flange are mounted with a 90° angled automatic two-wheeled foot that automatically fits over the flange and the stop face, between the support leg and the guide pin Locked by the cylinder clamp, see Figure 6 (a).
Claims
1、 一种核电站反应堆压力容器检査装置， 包括立柱组件 （2) 和检査工 具运载平台 （3) ， 其特征在于： 立柱组件 （2) 自上而下设置多个安装有核 电站反应堆压力容器检査工具的检査工具运载平台 （3) ； 每个检査工具运载 平台 （3) 能够绕立柱组件 （2) 进行上下升降运动和平面旋转运动。 1. A nuclear power plant reactor pressure vessel inspection device, including a column assembly (2) and an inspection tool carrying platform (3), characterized in that: the column assembly (2) is provided with multiple nuclear power plant reactor pressure vessels installed from top to bottom Inspection tool carrying platform (3) for inspection tools; each inspection tool carrying platform (3) can perform up and down lifting movements and plane rotation movements around the column assembly (2).
2、根据权利要求 1所述的核电站反应堆压力容器检査装置，其特征在于: 核电站反应堆压力容器检査装置还包括固定于立柱组件（2)上方的提升支撑 组件（1)，提升支撑组件（1)安装于核电站反应堆压力容器的容器法兰上方， 其尺寸能够根据容器法兰尺寸进行调节。 2. The nuclear power plant reactor pressure vessel inspection device according to claim 1, characterized in that: the nuclear power plant reactor pressure vessel inspection device further includes a lifting support assembly (1) fixed above the column assembly (2), and the lifting support assembly (1) 1) Installed above the vessel flange of the reactor pressure vessel of a nuclear power plant, its size can be adjusted according to the size of the vessel flange.
3、根据权利要求 2所述的核电站反应堆压力容器检査装置，其特征在于: 所述提升支撑组件 （1) 包括若干根倒 "L"形支撑筋， 每根支撑筋上端与立柱 组件 （2) 组件之间通过厚度可调的垫块 （4) 相连接， 下端与核电站反应堆 压力容器的容器法兰相固定：通过调节支撑筋上端所连接的垫块（4)的厚度， 能够调整若干根支撑筋下端所围成的截面尺寸，使其与容器法兰尺寸相匹配。 3. The nuclear power plant reactor pressure vessel inspection device according to claim 2, characterized in that: the lifting support assembly (1) includes a plurality of inverted "L" shaped support ribs, and the upper end of each support rib is connected to the column assembly (2 ) The components are connected through pads (4) with adjustable thickness, and the lower end is fixed to the vessel flange of the reactor pressure vessel of the nuclear power plant: by adjusting the thickness of the pads (4) connected to the upper ends of the support ribs, several of them can be adjusted The cross-sectional size enclosed by the lower ends of the support ribs should match the size of the vessel flange.
4、根据权利要求 1或 2所述的核电站反应堆压力容器检査装置， 其特征 在于： 4. The nuclear power plant reactor pressure vessel inspection device according to claim 1 or 2, characterized in that:
所述立柱组件 （2) ， 外壁沿轴向设有一根齿条 （5) ； The outer wall of the column assembly (2) is provided with a rack (5) along the axial direction;
所述检査工具运载平台 （3) ， 包括内筒和外筒， 二者通过回转轴承相固 定； The inspection tool carrying platform (3) includes an inner cylinder and an outer cylinder, both of which are fixed by a slewing bearing;
所述检査工具运载平台 （3) 内筒， 设有升降传动电机、 升降传动齿轮和 支撑导轮： 升降传动齿轮与立柱组件 （2) 的齿条 （5) 相匹配， 在支撑导轮 的支撑和升降传动电机的驱动下，实现检査工具运载平台（3)沿立柱组件（2) 的升降运动；
所述检査工具运载平台 （3 )外筒， 沿水平方向设有一圈齿圈， 其在安装 于内筒的旋转传动电机的驱动下， 带动外筒进行水平旋转运动； 此外， 外筒 还设有多个安装孔， 能够同时安装多个检査工具。 The inner cylinder of the inspection tool carrying platform (3) is provided with a lifting transmission motor, a lifting transmission gear and a support guide wheel: the lifting transmission gear matches the rack (5) of the column assembly (2), and the support guide wheel Driven by the support and lifting transmission motor, the lifting movement of the inspection tool carrying platform (3) along the column assembly (2) is realized; The outer cylinder of the inspection tool carrying platform (3) is provided with a ring gear along the horizontal direction, which drives the outer cylinder to perform horizontal rotation under the drive of the rotation transmission motor installed on the inner cylinder; in addition, the outer cylinder is also equipped with a ring gear. There are multiple mounting holes to enable multiple inspection tools to be installed at the same time.
5、根据权利要求 4所述的核电站反应堆压力容器检査装置，其特征在于: 所述立柱且外壁沿轴向还设有导轨 （6) 和凹槽 （7) 。 5. The nuclear power plant reactor pressure vessel inspection device according to claim 4, characterized in that: the upright column and the outer wall are also provided with guide rails (6) and grooves (7) along the axial direction.
6、根据权利要求 4所述的核电站反应堆压力容器检査装置，其特征在于: 所述立柱组件 （2) 能够调节长度。 6. The nuclear power plant reactor pressure vessel inspection device according to claim 4, characterized in that: the length of the column assembly (2) can be adjusted.
7、根据权利要求 4所述的核电站反应堆压力容器检査装置，其特征在于: 所述检査工具运载平台 （3 )外筒， 上沿、 下沿各均匀分布有一圈安装孔， 形 成圆周法兰式安装基准面 （8)。 7. The nuclear power plant reactor pressure vessel inspection device according to claim 4, characterized in that: the outer cylinder of the inspection tool carrying platform (3) has a circle of mounting holes evenly distributed on the upper and lower edges, forming a circular pattern. Blue mounting datum (8).
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| GB1604800.1A GB2533735B (en) | 2013-09-23 | 2014-05-28 | Apparatus for inspecting a reactor pressure vessel of a nuclear power plant |
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| CN201310441433.6A CN104464849A (en) | 2013-09-23 | 2013-09-23 | Device for checking reactor pressure vessel of nuclear power station |
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| CN201320585946.X | 2013-09-23 | ||
| CN201320585946.XU CN203465957U (en) | 2013-09-23 | 2013-09-23 | Device for checking reactor pressure vessel of nuclear power station |
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| CN111383785A (en) * | 2018-12-28 | 2020-07-07 | 核动力运行研究所 | Circular motion trolley for checking pressure container |
| CN110828014A (en) * | 2019-11-08 | 2020-02-21 | 中核核电运行管理有限公司 | Nuclear reactor maintenance mobile platform and using method thereof |
| CN111564227A (en) * | 2020-05-25 | 2020-08-21 | 东方电气(广州)重型机器有限公司 | A support platform for a nuclear power reactor pressure vessel |
| CN111799002A (en) * | 2020-07-14 | 2020-10-20 | 核动力运行研究所 | Top cap video inspection device |
| CN113744904A (en) * | 2021-07-26 | 2021-12-03 | 国核电站运行服务技术有限公司 | Nuclear reactor pressure vessel top cover inspection system |
| CN113744904B (en) * | 2021-07-26 | 2023-11-28 | 国核电站运行服务技术有限公司 | Nuclear reactor pressure vessel top cap inspection system |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2533735A (en) | 2016-06-29 |
| GB2533735B (en) | 2020-07-29 |
| GB201604800D0 (en) | 2016-05-04 |
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