CN204375432U - Spent fuel dry-type storage project underwater operation platform device for hoisting - Google Patents
Spent fuel dry-type storage project underwater operation platform device for hoisting Download PDFInfo
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- CN204375432U CN204375432U CN201520076359.7U CN201520076359U CN204375432U CN 204375432 U CN204375432 U CN 204375432U CN 201520076359 U CN201520076359 U CN 201520076359U CN 204375432 U CN204375432 U CN 204375432U
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- 239000002915 spent fuel radioactive waste Substances 0.000 title claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 238000009434 installation Methods 0.000 claims abstract description 49
- 239000000725 suspension Substances 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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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
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Abstract
本实用新型涉及在无吊车厂房内安装大吨位的重型设备的吊装用装置。为解决原设计安装水下操作台带来的施工难度大、风险高及工期长的问题，本实用新型提出一种乏燃料干式贮存项目水下操作台吊装用装置，包括两个双腿倒链、两个单腿倒链及四个绳圈，双腿倒链安装在屋顶钢梁上，安装位置的投影位于厂房水池外的平台上；单腿倒链安装在厂房屋顶钢梁上，安装位置位于厂房水池内水下操作台安装位置的正上方；绳圈穿过水下操作台的吊耳后挂设在双腿倒链的吊钩上。使用本实用新型乏燃料干式贮存项目水下操作台吊装用装置对水下操作台进行吊装，安装快速、准确，且安装工期短，工作人员施工难度低，人员及设备安全性高。
The utility model relates to a hoisting device for installing large-tonnage heavy equipment in a workshop without a crane. In order to solve the problems of difficult construction, high risk and long construction period brought about by the original design and installation of the underwater operation platform, the utility model proposes a device for hoisting the underwater operation platform for the spent fuel dry storage project, which includes two inverted legs chain, two single-leg upside-down chains and four rope loops, the double-leg upside-down chains are installed on the roof steel beams, and the projection of the installation position is located on the platform outside the factory pool; the single-leg upside down chains are installed on the factory roof steel beams, and the installation The location is directly above the installation position of the underwater operation platform in the pool of the factory building; the rope loop passes through the lifting lug of the underwater operation platform and is hung on the hooks of the double-leg inverted chain. Using the device for hoisting the underwater operation platform of the spent fuel dry storage project of the utility model to hoist the underwater operation platform, the installation is fast and accurate, and the installation period is short, the construction difficulty of the staff is low, and the safety of personnel and equipment is high.
Description
技术领域technical field
本实用新型涉及在役核电站新增项目施工，尤其涉及一种在无吊车厂房内安装大吨位的重型设备的吊装用装置。The utility model relates to the construction of newly added projects of in-service nuclear power plants, in particular to a hoisting device for installing large-tonnage heavy equipment in a workshop without a crane.
背景技术Background technique
核电站从反应堆内卸出的乏燃料，被输送到深7.7米的乏燃料贮存池内存放，而现有的乏燃料贮存池设计容量为10年，因此在核电站运转10年之期届满时需要尽快解决乏燃料的转运，以保证核电站稳定运行。乏燃料干式贮存项目就是为了实现乏燃料的转运操作，其中，乏燃料贮存池水下操作台的安装，是该项目设备安装的重要环节，它的作用就是通过水下操作台上的倾翻装置和旋转装置，将池内的乏燃料棒束装入燃料篮中，从而实现将其整体提出水面后，通过烘干、密封处理后，装车外运封埋，进行实现乏燃料的转运。水下操作台重量约12t(吨)，外形尺寸庞大(长×宽×高)4.7m×2.5m×2.7m(米)，安装位置在7.7m深的乏燃料贮存池的底部，并由设置在贮存池底部预留的8个定位销固定。The spent fuel discharged from the reactor by the nuclear power plant is transported to the spent fuel storage pool with a depth of 7.7 meters for storage, and the existing spent fuel storage pool has a design capacity of 10 years, so it needs to be resolved as soon as possible when the 10-year operation period of the nuclear power plant expires The transfer of spent fuel to ensure the stable operation of nuclear power plants. The spent fuel dry storage project is to realize the transfer operation of spent fuel. Among them, the installation of the spent fuel storage pool's underwater operation platform is an important part of the project's equipment installation. Its function is to pass the tipping device on the underwater operation platform. And the rotating device, put the spent fuel bundles in the pool into the fuel basket, so as to realize the whole after being raised from the water surface, after drying and sealing treatment, it will be loaded into the car and buried to realize the transfer of spent fuel. The weight of the underwater operation platform is about 12t (tons), and the external dimensions are huge (length×width×height) 4.7m×2.5m×2.7m (meters). The 8 positioning pins reserved at the bottom of the storage tank are fixed.
根据核电站的设计规划，乏燃料干式贮存项目实施的时间是乏燃料即将堆满之时，可供工作人员支配的工期仅有半月时间，现场作业空间狭小，乏燃料干式贮存项目的水下操作台就位后，距池内堆放的乏燃料篮仅50mm(毫米)，且厂房内无法设置专用起重行车，池面上方也没有任何吊装设施。原设计方案是在乏燃料贮存池厂房屋顶钢结构梁上安装由H型钢弯制的U型轨道，轨道上安装锚头吊并挂设倒链将操作台由池外向池内转运，但屋顶钢梁距池面14.5米，U型轨道的预制、安装和拆除必须搭设脚手架，工作难度大，风险高且工期较长，按该方案实施，无法在预定期限内完成乏燃料干式贮存项目进度计划。According to the design plan of the nuclear power plant, the time for implementing the spent fuel dry storage project is when the spent fuel is about to be full, and the construction period at the disposal of the staff is only half a month. After the operation platform is in place, it is only 50mm (millimeters) away from the spent fuel baskets stacked in the pool, and there is no special lifting crane in the factory building, and there is no hoisting facility above the pool surface. The original design plan was to install a U-shaped track made of H-shaped steel on the steel structure beam of the roof of the spent fuel storage pool. An anchor head crane was installed on the track and an inverted chain was hung to transfer the operation platform from the outside of the pool to the inside of the pool. However, the steel beam on the roof The distance from the pool surface is 14.5 meters. Scaffolding must be erected for the prefabrication, installation and dismantling of the U-shaped track, which is difficult, high-risk and has a long construction period. According to this plan, the spent fuel dry storage project schedule cannot be completed within the scheduled time limit.
实用新型内容Utility model content
为解决原设计安装水下操作台带来的施工难度大、风险高及工期长的问题，本实用新型提出一种乏燃料干式贮存项目水下操作台吊装用装置，该乏燃料干式贮存项目水下操作台吊装用装置包括两个双腿倒链、两个单腿倒链以及四个绳圈，所述双腿倒链安装在屋顶钢梁上，且所述双腿倒链的安装位置的投影位于厂房水池外的平台上；所述单腿倒链安装在屋顶钢梁上，且所述单腿倒链的安装位置位于所述厂房水池内的水下操作台的安装位置的正上方；所述绳圈穿过待吊装水下操作台的吊耳后挂设在所述双腿倒链的吊钩上。In order to solve the problems of difficult construction, high risk and long construction period caused by the original design and installation of the underwater operation platform, the utility model proposes a device for hoisting the underwater operation platform of the spent fuel dry storage project. The spent fuel dry storage The device for hoisting the underwater operation platform of the project includes two double-leg chains, two single-leg chains and four rope loops. The double-leg chains are installed on the roof steel beams, and the installation of the double-leg chains The projection of the position is located on the platform outside the plant pool; the single-leg chain is installed on the roof steel beam, and the installation position of the single-leg chain is located in the positive direction of the installation position of the underwater operation platform in the plant pool. above; the rope loop passes through the lugs of the underwater operation platform to be hoisted and is hung on the hook of the double-leg upside-down chain.
在使用时，首先将水下操作台运输至厂房内的水池边的平台上放置，根据厂房施工时留下的完工图纸确定出水下操作台在水池内的安装位置处的横向中心线，并将该横向中心线投影至池面上方的厂房屋顶，将与该横向中心线对应的屋顶钢梁作为单腿倒链的安装中心线。再根据放置在水池边的平台上的水下操作台的位置确定其横向中心线，并将该横向中心线投影至厂房屋顶，选择与该横向中心线对应的屋顶钢梁作为双腿倒链的安装中心线。When in use, first transport the underwater operation table to the platform next to the pool in the factory building and place it on the platform, and determine the horizontal centerline of the installation position of the underwater operation table in the pool according to the completed drawings left during the construction of the factory building. The transverse centerline is projected onto the roof of the factory building above the pool surface, and the roof steel beam corresponding to the transverse centerline is used as the installation centerline of the single-leg chain link. Then determine its transverse centerline according to the position of the underwater operation platform placed on the platform beside the pool, and project the transverse centerline to the roof of the factory building, and select the roof steel beam corresponding to the transverse centerline as the double-leg upside-down chain. Install the centerline.
根据厂房完工图纸确定出水下操作台在安装位置处的纵向中心线，并将该纵向中心线投影至厂房屋顶，选择出与该纵向中心线对应的屋顶钢梁。将完工图纸中水下操作台安装后吊耳的位置投影至厂房屋顶上，选择穿过吊耳且平行于对应水下操作台在安装位置处的纵向中心线的屋顶钢梁。将这两根钢梁与水下操作台安装的横向中心线的投影线的两个交点确定为单腿倒链安装点，将两个单腿倒链分别安装在该单腿倒链安装点上。Determine the longitudinal centerline of the underwater operation platform at the installation position according to the completed drawings of the plant, project the longitudinal centerline onto the roof of the plant, and select the roof steel beam corresponding to the longitudinal centerline. Project the position of the lifting lug after the installation of the underwater operation platform in the as-built drawing onto the roof of the factory building, and select the roof steel beam that passes through the lifting lug and is parallel to the longitudinal centerline of the corresponding underwater operation platform at the installation position. The two intersections of the two steel beams and the projection line of the transverse center line installed on the underwater operation platform are determined as the installation point of the single-leg chainstay, and the two single-leg chainstays are respectively installed on the installation point of the single-leg chainstay .
根据厂房完工图纸确定出放置在水池边的平台上的水下操作台安装的纵向中心线，并将该纵向中心线投影至厂房屋顶，选择出与该纵向中心线对应的屋顶钢梁。再将水下操作台放置在平台上时吊耳的位置投影至厂房屋顶上，选择穿过吊耳投影点且平行于对应放置在平台上的水下操作台的纵向中心线的钢梁。将这两根钢梁与放置在平台上的水下操作台的横向中心线的投影线的两个交点确定为双腿倒链安装点，将两个双腿倒链分别安装在该双腿倒链安装点上。Determine the longitudinal centerline of the installation of the underwater operation platform placed on the platform next to the pool according to the completed drawings of the factory building, project the longitudinal centerline to the roof of the factory building, and select the roof steel beam corresponding to the longitudinal centerline. Then project the position of the lifting lug when the underwater operation platform is placed on the platform to the roof of the factory building, and select a steel beam that passes through the projection point of the lifting lug and is parallel to the longitudinal centerline of the corresponding underwater operation platform placed on the platform. The two intersections of the two steel beams and the projection line of the transverse centerline of the underwater operation platform placed on the platform are determined as the installation points of the double-leg chains, and the two double-leg chains are respectively installed on the chain mounting point.
将绳圈穿过吊耳后挂设在双腿倒链的吊钩上，然后将单腿倒链的吊钩挂设在位于同一根屋顶钢梁上的双腿倒链的索具吊环内。Put the rope loop through the lug and hang it on the hook of the double-leg chain, and then hang the hook of the single-leg chain in the sling ring of the double-leg chain on the same roof steel beam.
首先操作双腿倒链将操作台水平提起到距地面100mm处，并同步收缩单腿倒链的索链，保证单腿倒链的吊钩不与双腿倒链的索具吊环脱钩。然后将该装置及水下操作台静置，使水下操作台不再晃动，收缩单腿倒链，并同步放松双腿倒链的索链，使水下操作台水平移至水池内的安装位置的正上方，静置该水下操作台，使其不再发生晃动后，同步放松单腿倒链和双腿倒链，使该水下操作台落入水池内的安装位置，且设置在水池内的定位销能够进入该水下操作台上的定位销孔内，将该水下操作台固定起来。水下操作台定位后，双腿倒链的吊钩在水下与水下操作台的吊耳之间无拉力，在水的浮力作用下自动脱钩。First operate the double-leg rewinding to lift the operating table horizontally to 100mm from the ground, and simultaneously shrink the cable chain of the single-leg rewinding to ensure that the hook of the single-leg rewinding does not decouple from the rigging ring of the double-leg rewinding. Then put the device and the underwater operation table to rest, so that the underwater operation table no longer shakes, shrink the single-leg rewinding chain, and simultaneously loosen the chains of the double-leg rewinding chains, so that the underwater operation table moves horizontally to the installation in the pool. Just above the position, let the underwater operation platform stand still so that it no longer shakes, then simultaneously loosen the single-leg upside-down chain and the double-leg upside-down chain, so that the underwater operation platform falls into the installation position in the pool, and set it in the The positioning pins in the pool can enter the positioning pin holes on the underwater operation table to fix the underwater operation table. After the underwater operation platform is positioned, there is no tension between the hooks of the double-leg upside-down chain and the lifting lugs of the underwater operation platform, and they will be automatically decoupled under the buoyancy of the water.
使用本实用新型乏燃料干式贮存项目水下操作台吊装用装置对水下操作台进行吊装时，只需设置四个倒链安装点，减轻了工作人员的工作量，减少了工作时间，降低了工作人员的工作难度，保障了工作人员及设备的安全性，为后续乏燃料干式贮存项目的进行留下了足够的时间，保障了核电站的稳定运行。When using the device for hoisting the underwater operation platform of the spent fuel dry storage project of the utility model to hoist the underwater operation platform, it is only necessary to set up four chain-down installation points, which reduces the workload of the staff, reduces the working time, and reduces the It reduces the difficulty of the work of the staff, guarantees the safety of the staff and equipment, leaves enough time for the follow-up spent fuel dry storage project, and ensures the stable operation of the nuclear power plant.
优选地，所述双腿倒链和所述单腿倒链均通过钢丝绳安装在屋顶钢梁上。在倒链安装点，从屋顶钢梁和屋瓦凸槽之间穿入双股钢丝绳绕屋顶钢梁一圈，形成简易吊环，使倒链的挂钩挂设在该由钢丝绳形成的简易吊环中，该简易吊环的制作工序简单，工作人员无需在脚手架上进行强度和复杂程度较高的工作，保障了工作人员及设备的安全性，且制作方便快捷，节约了工作时间。Preferably, both the double-leg hoisting chain and the single-leg hoisting chain are installed on the roof steel girders through steel wire ropes. At the installation point of the inverted chain, a double-strand steel wire rope is passed between the roof steel beam and the roof tile convex groove to wrap around the roof steel beam to form a simple suspension ring, so that the hook of the inverted chain is hung in the simple suspension ring formed by the steel wire rope. The manufacturing process of the simple suspension ring is simple, and workers do not need to perform high-strength and complicated work on the scaffold, which ensures the safety of workers and equipment, and is convenient and quick to manufacture, saving working time.
进一步地，所述钢丝绳的两端通过接绳夹固定连接。使用接绳夹固定钢丝绳的两端，保障了钢丝绳两端的连接强度，提高了利用钢丝绳制成的倒链挂钩挂设用简易吊环的稳定性，进而保障了后续吊装作业的稳定性，保证了工作人员及设备的安全性。Further, the two ends of the steel wire rope are fixedly connected by a connecting clip. The two ends of the steel wire rope are fixed by using rope clamps, which ensures the connection strength of the two ends of the steel wire rope, improves the stability of the simple lifting ring used for hanging the inverted chain hook made of steel wire rope, and thus ensures the stability of the subsequent hoisting operation and ensures the safety of the work. Safety of personnel and equipment.
进一步地，所述钢丝绳与屋顶钢梁的接触位置设置有保护垫。水下操作台在起吊过程中发生晃动时，钢丝绳会与屋顶钢梁发生较大摩擦，而在所述钢丝绳与屋顶钢梁的接触位置设置保护垫后，所述保护垫能够隔绝所述钢丝绳与屋顶钢梁的接触，避免了所述钢丝绳磨损甚至断裂。Further, a protective pad is provided at the contact position between the steel wire rope and the roof steel beam. When the underwater operation platform shakes during the hoisting process, the steel wire rope will rub against the roof steel beams, and after the protective pad is set at the contact position between the steel wire rope and the roof steel beam, the protection pad can isolate the steel wire rope from the steel beam. The contact of the roof steel girder avoids the abrasion or even fracture of the steel wire rope.
优选地，所述绳圈挂设在所述双腿倒链的吊钩上后，所述绳圈上挂设在靠近该吊钩柄头的部分被固定在该吊钩上。当水下操作台安装就位后，双腿倒链的吊钩在水下与水下操作台的吊耳之间无拉力，在水的浮力作用下自动脱钩，此时，绳圈挂设在靠近该吊钩钩尖的部分先与吊钩脱离开来，工作人员在提拉所述双腿倒链吊钩的同时，会带动绳圈固定在吊钩柄头上的部分与水下操作台的吊耳脱离开来，将所述绳圈也从水下操作台上取下，使得所述绳圈可以重复利用，节约了成本。Preferably, after the loop is hung on the hook of the double-leg upside-down chain, the part of the loop hanging close to the handle of the hook is fixed on the hook. When the underwater operation platform is installed in place, there is no tension between the hooks of the double-leg upside-down chain and the lifting lugs of the underwater operation platform, and it will be automatically decoupled under the buoyancy of the water. At this time, the rope ring is hung on the The part close to the hook tip is separated from the hook first, and the staff will drive the part of the rope loop fixed on the handle of the hook and the underwater operation platform while pulling the double-legged chain-down hook. The lifting lugs are detached, and the rope loop is also taken off from the underwater operation platform, so that the rope loop can be reused, which saves costs.
进一步地，所述绳圈上靠近吊钩柄头的部分通过细钢丝捆扎的方式固定在该吊钩柄头上。捆扎方式易于操作且拆装方便。Further, the part of the rope loop close to the handle of the hook is fixed on the handle of the hook by means of thin steel wire binding. The binding method is easy to operate and convenient to disassemble and assemble.
优选地，该乏燃料干式贮存项目水下操作台吊装用装置还包括水下监测设备。水下监测设备可以用于监控水下操作台落入水中后的位置，使工作人员在地面就能清楚观测到水下操作台进入水中后的位置，便于工作人员调整，使水下操作台能够更加快速、准确地就位。Preferably, the device for hoisting the underwater operation platform of the spent fuel dry storage project also includes underwater monitoring equipment. The underwater monitoring equipment can be used to monitor the position of the underwater operation platform after it falls into the water, so that the staff can clearly observe the position of the underwater operation platform after entering the water on the ground, which is convenient for the staff to adjust, so that the underwater operation platform can Faster and more accurate positioning.
使用本实用新型乏燃料干式贮存项目水下操作台吊装用装置对水下操作台进行吊装，安装快速、准确，且安装工期短，工作人员施工难度低，人员及设备安全性高。Using the device for hoisting the underwater operation platform of the spent fuel dry storage project of the utility model to hoist the underwater operation platform, the installation is fast and accurate, and the installation period is short, the construction difficulty of the staff is low, and the safety of personnel and equipment is high.
附图说明Description of drawings
图1为本实用新型乏燃料干式贮存项目水下操作台吊装用装置的操作示意图；Figure 1 is a schematic diagram of the operation of the device for hoisting the underwater operation platform of the spent fuel dry storage project of the present invention;
图2为本实用新型乏燃料干式贮存项目水下操作台吊装用装置的倒链安装点与厂房水池之间的位置关系的示意图。Fig. 2 is a schematic diagram of the positional relationship between the installation point of the inverted chain of the device for hoisting the underwater operation platform of the spent fuel dry storage project of the utility model and the pool of the powerhouse.
具体实施方式Detailed ways
如图1和图2所示，一种乏燃料干式贮存项目水下操作台吊装用装置包括两个双腿倒链1、两个单腿倒链2、四个绳圈3以及水下监测设备(图中未示出)。双腿倒链1通过钢丝绳11安装在厂房水池6外的平台5上方的屋顶钢梁b上，单腿倒链2通过钢丝绳11安装在厂房水池6内的水下操作台安装位置正上方的屋顶钢梁a上；钢丝绳11的两端通过接绳夹固定连接形成简易吊环以方便双腿倒链和单腿倒链2进行挂设，且钢丝绳11与屋顶钢梁b、a之间的接触位置设置有保护垫12，以避免钢丝绳11出现损伤。绳圈3穿过待吊装水下操作台4的吊耳后挂设在双腿倒链1的吊钩上，且绳圈3上挂设在靠近该吊钩柄头的部分通过细钢丝捆扎在该吊钩上。水下监测设备可以用于监控水下操作台落入水中后的位置，使工作人员在地面就能清楚观测到水下操作台进入水中后的位置，便于工作人员调整，使水下操作台能够更加快速、准确地就位。As shown in Figures 1 and 2, a hoisting device for the underwater operation platform of the spent fuel dry storage project includes two double-leg chains 1, two single-leg chains 2, four rope loops 3, and underwater monitoring equipment (not shown). The double-leg upside-down chain 1 is installed on the roof steel beam b above the platform 5 outside the plant pool 6 through the steel wire rope 11, and the single-leg upside-down chain 2 is installed on the roof directly above the installation position of the underwater operation platform in the plant pool 6 through the steel wire rope 11 On the steel beam a; the two ends of the steel wire rope 11 are fixed and connected by rope clips to form a simple suspension ring to facilitate the hanging of the double-leg upside-down chain and the single-leg upside-down chain 2, and the contact position between the steel wire rope 11 and the roof steel beams b and a A protective pad 12 is provided to avoid damage to the steel wire rope 11 . The rope loop 3 passes through the lugs of the underwater operation platform 4 to be hoisted and is hung on the hook of the double-leg inverted chain 1, and the rope loop 3 is hung on the part close to the handle of the hook and is bound by a thin steel wire. on the hook. The underwater monitoring equipment can be used to monitor the position of the underwater operation platform after it falls into the water, so that the staff can clearly observe the position of the underwater operation platform after entering the water on the ground, which is convenient for the staff to adjust, so that the underwater operation platform can Faster and more accurate positioning.
在使用时，首先将水下操作台4运输至厂房内的水池边上的平台5上放置，根据厂房施工时留下的完工图纸确定出水下操作台在安装位置处的横向中心线，并将该横向中心线投影至水池6上方的厂房屋顶，将与该横向中心线对应的屋顶钢梁a作为单腿倒链的安装中心线；再根据放置在水池边的水下操作台的位置，确定其横向中心线，将该横向中心线投影至厂房屋顶，选择与该横向中心线对应的屋顶钢梁b作为双腿倒链的安装中心线。When in use, the underwater operation platform 4 is first transported to the platform 5 on the edge of the pool in the factory building, and the horizontal centerline of the underwater operation platform at the installation position is determined according to the completed drawings left during the construction of the factory building, and the The transverse centerline is projected onto the roof of the factory building above the pool 6, and the roof steel beam a corresponding to the transverse centerline is used as the installation centerline of the single-leg chain; Its transverse centerline, project the transverse centerline to the roof of the factory building, and select the roof steel beam b corresponding to the transverse centerline as the installation centerline of the double-leg chain.
根据厂房的完工图纸中水下操作台4在安装位置，确定出水下操作台4在安装位置的纵向中心线，并将该纵向中心线投影至厂房屋顶，选择出与该纵向中心线对应的屋顶钢梁。将厂房的完工图纸中水下操作台安装后吊耳的位置投影至厂房屋顶上，选择穿过吊耳投影点且平行于对应水下操作台在安装位置处的纵向中心线的屋顶钢梁m和屋顶钢梁n，将这两根屋顶钢梁m、n与屋顶钢梁a的两个交点确定为单腿倒链安装点21。根据厂房完工图纸确定出放置在水池边的平台5上的水下操作台的纵向中心线，并将该纵向中心线投影至厂房屋顶，选择出与该纵向中心线对应的屋顶钢梁b，再将水下操作台放置在平台上时吊耳的位置投影至厂房屋顶上，选择穿过吊耳投影点且平行于对应放置在平台5上的水下操作台的纵向中心线的屋顶钢梁m、n(图2所示的水下操作台吊耳在水池6内的安装位置的投影点，与水下操作台放置在平台5上时对应吊耳的投影点，位于同一直线上，因此选择与水池6内水下操作台的安装位置处的吊耳投影点所在屋顶钢梁相同)，将这两根屋顶钢梁m、n与屋顶钢梁b的两个交点确定为双腿倒链安装点13，将两个双腿倒链1分别安装在该双腿倒链安装点13上。According to the installation position of the underwater operation platform 4 in the completed drawings of the plant, determine the longitudinal centerline of the underwater operation platform 4 at the installation position, and project the longitudinal centerline to the roof of the factory building, and select the roof corresponding to the longitudinal centerline steel beams. Project the position of the lifting lug after the installation of the underwater operation platform in the completed drawing of the plant onto the roof of the plant, and select the roof steel beam m that passes through the projection point of the lifting lug and is parallel to the longitudinal centerline of the corresponding underwater operation platform at the installation position and the roof steel beam n, determine the two intersection points of the two roof steel beams m, n and the roof steel beam a as the single-leg upside-down chain installation point 21 . Determine the longitudinal centerline of the underwater operation platform placed on the platform 5 beside the pool according to the completed drawings of the factory building, and project the longitudinal centerline onto the roof of the factory building, select the roof steel beam b corresponding to the longitudinal centerline, and then When the underwater operating platform is placed on the platform, the position of the lifting lug is projected onto the roof of the factory building, and the roof steel beam m that passes through the projection point of the lifting lug and is parallel to the longitudinal centerline of the corresponding underwater operating platform placed on the platform 5 is selected , n (the projection point of the installation position of the lifting lug of the underwater operation platform shown in Figure 2 in the pool 6 is located on the same straight line as the projection point of the corresponding lifting lug when the underwater operation platform is placed on the platform 5, so choose It is the same as the roof steel beam where the projection point of the lifting lug at the installation position of the underwater operation platform in the pool 6 is located), and the two intersection points of the two roof steel beams m, n and the roof steel beam b are determined as double-leg inverted chain installation At point 13, install the two double-leg upside-down chains 1 on the double-leg upside-down chain installation points 13 respectively.
将绳圈3穿过吊耳后挂设在双腿倒链1的吊钩上，然后将单腿倒链2的吊钩挂设在位于同一根屋顶钢梁m或屋顶钢梁n上的双腿倒链的索具吊环内。Put the rope ring 3 through the lifting lug and hang it on the hook of the double-leg upside-down chain 1, and then hang the hook of the single-leg upside-down chain 2 on the double-hook located on the same roof steel girder m or roof steel girder n. Inside the rigging eye of the leg chain.
首先操作双腿倒链1将操作台4水平提起到距地面100mm处，并同步收缩单腿倒链2的索链，保证单腿倒链2的吊钩不与双腿倒链1的索具吊环脱钩。然后将该装置及水下操作台4静置，使水下操作台1不再晃动，操作单腿倒链2收缩，并同步放松双腿倒链1的索链，使水下操作台4水平移至水池6内的安装位置处的正上方，静置该水下操作台4，使其不再发生晃动后，同步放松单腿倒链2和双腿倒链1，使该水下操作台4落入水池6内的安装位置，且设置在水池6内的定位销能够进入该水下操作台上的定位销孔内，将该水下操作台4固定起来。水下操作台4定位后，双腿倒链1的吊钩在水下与水下操作台4的吊耳之间无拉力，绳圈3挂设在靠近该吊钩钩尖的部分先与吊钩脱离开来，工作人员在提拉双腿倒链1的吊钩的同时，会带动绳圈3固定在吊钩柄头上的部分一同与水下操作台4的吊耳脱离开来，将绳圈3也从水下操作台4上取下，使得绳圈3可以重复利用，节约了成本。First operate the double-leg rewind 1 to lift the console 4 horizontally to 100mm from the ground, and simultaneously shrink the cable chain of the single-leg rewind 2 to ensure that the hook of the single-leg rewind 2 does not interfere with the rigging of the double-leg rewind 1 Ring unhooked. Then put the device and the underwater operation platform 4 at rest so that the underwater operation platform 1 no longer shakes, operate the single-leg upside-down chain 2 to contract, and simultaneously relax the cable chains of the two-leg upside-down chain 1, so that the underwater operation platform 4 is horizontal Move to the right above the installation position in the pool 6, let the underwater operation platform 4 stand still, and after making it no longer shake, loosen the single-leg rewinding chain 2 and the double-leg rewinding chain 1 synchronously, so that the underwater operation platform 4 falls into the installation position in the pool 6, and the locating pin that is arranged on the pool 6 can enter in the locating pin hole on this underwater operating platform, this underwater operating platform 4 is fixed. After the underwater operating platform 4 is positioned, the hooks of the double-leg inverted chain 1 have no tension between the underwater and the lifting lugs of the underwater operating platform 4, and the rope loop 3 is hung on the part close to the hook tip of the suspension hook and first connected with the hanging hook. When the hook is detached, the staff will drive the part of the rope ring 3 fixed on the handle of the hook to detach from the lifting lug of the underwater operation platform 4 while lifting the hook of the double legs and reversing the chain 1. The rope loop 3 is also taken off from the underwater operating platform 4, so that the rope loop 3 can be reused, which saves the cost.
使用本实用新型乏燃料干式贮存项目水下操作台吊装用装置对水下操作台进行吊装时，只需设置四个倒链安装点，安装快速、准确，减轻了工作人员的工作量，减少了工作时间，降低了工作人员的工作难度，工作人员施工难度低，保障了工作人员及设备的安全，为后续乏燃料干式贮存项目的进行留下了足够的时间，保障了核电站的稳定运行。When using the device for hoisting the underwater operation platform of the spent fuel dry storage project of the utility model to hoist the underwater operation platform, only four chain-down installation points need to be set, and the installation is fast and accurate, which reduces the workload of the staff and reduces the The working time is shortened, the difficulty of the staff's work is reduced, and the construction difficulty of the staff is low, which ensures the safety of the staff and equipment, leaves enough time for the follow-up spent fuel dry storage project, and ensures the stable operation of the nuclear power plant .
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105957573A (en) * | 2016-06-27 | 2016-09-21 | 中电投远达环保工程有限公司重庆科技分公司 | Bagged filtering material changing device for radioactive wastewater treatment process |
| CN106705810A (en) * | 2016-12-28 | 2017-05-24 | 中核核电运行管理有限公司 | Heavy water reactor spent fuel basket testing inspection device |
| CN106951622A (en) * | 2017-03-14 | 2017-07-14 | 北京科瑞华安科技有限公司 | A kind of spent fuel stores the finite element method of screen work seismic safety |
| CN108447575A (en) * | 2018-03-23 | 2018-08-24 | 广东核电合营有限公司 | Loading Method for Dry Storage of PWR Spent Fuel |
| CN109461512A (en) * | 2018-10-25 | 2019-03-12 | 清华大学天津高端装备研究院 | A kind of spentnuclear fuel central repository pond hoisting device |
| CN112012188A (en) * | 2020-07-22 | 2020-12-01 | 海洋石油工程股份有限公司 | Method for in-situ dragging and laying down of deepwater abandoned jacket |
| CN116631666A (en) * | 2023-05-05 | 2023-08-22 | 中国核电工程有限公司 | Underwater transfer system |
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2015
- 2015-02-03 CN CN201520076359.7U patent/CN204375432U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957573A (en) * | 2016-06-27 | 2016-09-21 | 中电投远达环保工程有限公司重庆科技分公司 | Bagged filtering material changing device for radioactive wastewater treatment process |
| CN105957573B (en) * | 2016-06-27 | 2018-01-30 | 中电投远达环保工程有限公司重庆科技分公司 | The pocket type filtrate material-changing device of Spent Radioactive water treatment technology |
| CN106705810A (en) * | 2016-12-28 | 2017-05-24 | 中核核电运行管理有限公司 | Heavy water reactor spent fuel basket testing inspection device |
| CN106705810B (en) * | 2016-12-28 | 2023-01-03 | 中核核电运行管理有限公司 | Heavy water reactor spent fuel basket testing and checking device |
| CN106951622A (en) * | 2017-03-14 | 2017-07-14 | 北京科瑞华安科技有限公司 | A kind of spent fuel stores the finite element method of screen work seismic safety |
| CN108447575A (en) * | 2018-03-23 | 2018-08-24 | 广东核电合营有限公司 | Loading Method for Dry Storage of PWR Spent Fuel |
| CN109461512A (en) * | 2018-10-25 | 2019-03-12 | 清华大学天津高端装备研究院 | A kind of spentnuclear fuel central repository pond hoisting device |
| CN112012188A (en) * | 2020-07-22 | 2020-12-01 | 海洋石油工程股份有限公司 | Method for in-situ dragging and laying down of deepwater abandoned jacket |
| CN116631666A (en) * | 2023-05-05 | 2023-08-22 | 中国核电工程有限公司 | Underwater transfer system |
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