CN-121972929-A - Assembling type installation method of superconducting feeder line system of fusion device

CN121972929ACN 121972929 ACN121972929 ACN 121972929ACN-121972929-A

Abstract

The invention belongs to the technical field of fusion devices, and discloses an assembly type installation method of a superconducting feeder system of a fusion device. The method comprises the steps of digital pre-assembling, pre-processing a superconducting feeder line system assembly and conveying the superconducting feeder line system assembly to a fusion device factory building, installing a travelling mechanism, conveying and adjusting the superconducting feeder line system assembly to an axis of a corresponding installation position of a host hall, moving the axis towards the center of the host, enabling a corrugated pipe to be aligned with a Dewar window filler neck, enabling an internal feeder line to penetrate into the corrugated pipe to form a corrugated pipe section, overlapping superconducting joints between adjacent corrugated pipe sections and feeder line sections, enabling the superconducting feeder line system to be in position on a support part, constructing a cleaning area, connecting the superconducting joints between the adjacent corrugated pipe sections and the feeder line sections, installing an outer pipe, and removing the fusion device superconducting feeder line system to assemble and install the integrated platform. The invention has the advantages of short field installation and construction period, controllable clean environment, low radiographic inspection frequency and field operation risk, and can ensure the installation quality and precision.

Inventors

GONG XUEFENG
HUANG XIONGYI
LIU CHEN
WANG SHIQIANG
YU SIKUI
QI MINZHONG
YANG JINGYUE
MA XIAOLU
LI NING

Assignees

聚变新能(安徽)有限公司
中国科学院合肥物质科学研究院

Dates

Publication Date: 20260505
Application Date: 20260407

Claims (19)

1. The assembly type installation method of the superconducting feeder system of the fusion device is characterized by comprising the steps of installing a superconducting feeder system assembly formed by assembling the superconducting feeder system of the fusion device by using an integrated platform for assembling and installing the superconducting feeder system of the fusion device at an assembly site, wherein the integrated platform for assembling and installing the superconducting feeder system of the fusion device comprises a base module and a main body support frame module, wherein the main body support frame module comprises a current lead tank frame for carrying a current lead tank, a corrugated pipe section, a connecting pipe section and a feeder frame of a corresponding feeder section, and the feeder frame is detachably connected with the current lead tank frame and is detachably supported on the base module; the installation method comprises the following steps: S1, digital pre-assembly, transportation and installation planning are carried out, and hoisting parameters, gesture adjusting sequences and transportation paths are determined; s2, preprocessing the superconducting feeder system assembly; S3, conveying the superconducting feeder system assembly from the assembly site to the ground of a preassembly hall of a fusion device factory building, a platform or the ground of a host hall of the fusion device factory building; S4, installing a travelling mechanism on the fusion device superconducting feeder system assembling and installing integrated platform; S5, the travelling mechanism conveys and adjusts the superconducting feeder system assembly to an axis corresponding to the installation position, then moves to the circle center position of a fusion device host, and enables a corrugated pipe of the superconducting feeder system and a Dewar window filler neck to be aligned, a pre-installed internal feeder line penetrates into the corrugated pipe to form the corrugated pipe section, a superconducting joint between the adjacent corrugated pipe section and the feeder section is overlapped, and the superconducting feeder system assembly is positioned on a positioning support part of a host hall; S6, constructing a cleaning area for assembling and installing an integrated platform of the superconducting feeder system of the fusion device; s7, connecting superconducting joints between the adjacent corrugated pipe sections and the feeder line sections, and installing an outer pipe at the superconducting joints between the adjacent corrugated pipe sections and the feeder line sections; S8, dismantling the fusion device superconducting feeder system and assembling and installing the integrated platform.
2. The method of assembling a superconducting feeder system of a fusion device according to claim 1, wherein step S1 comprises the sub-steps of: s101, hoisting the superconducting feeder system assembly to an axis vehicle at the assembly site; S102, transferring the superconducting feeder system assembly from the assembly site to a preassembled hall of a fusion device factory building through the axis vehicle; And S103, transferring the superconducting feeder system assembly from the axis vehicle to the ground of the preassembly hall, a platform of the mainframe hall or the ground.
3. The assembly type installation method of the superconducting feeder system of the fusion device, which is disclosed in claim 2, is characterized in that step S1 is specifically that based on the actual external dimensions of the superconducting feeder system assembly, the dewar of the fusion device, the biological shielding wall and the internal feeder, a sample is obtained through three-dimensional scanning of a laser tracker, virtual simulation is carried out through computer software, lifting parameters and gesture adjusting sequences are determined, and a transportation path is planned.
4. The assembly type installation method of the superconducting feeder system of the fusion device according to claim 3, wherein the step S2 is specifically implemented by calibrating the initial pose of the superconducting feeder system assembly, performing secondary cleaning and installation of an integrated measurement target seat on the superconducting feeder system assembly, and performing cleaning packaging on the superconducting feeder system assembly.
5. The assembly type installation method of the superconducting feeder system of the fusion device according to claim 4, wherein in the step S101, a special lifting appliance is connected with the superconducting feeder system assembly at the assembly site, the special lifting appliance is connected with a lifting system at the assembly site, the superconducting feeder system assembly is lifted to the axis vehicle, the height of the special lifting appliance is lowered, the special lifting appliance is positioned on the axis vehicle, and the connection between the special lifting appliance and the lifting system at the assembly site is released.
6. The method of assembling a superconducting feeder system of a fusion device according to claim 5, wherein step S102 is characterized in that the special lifting tool is transported with the superconducting feeder system assembly from the assembly site to the preassembly hall through the axis vehicle.
7. The assembly installation method of the superconducting feeder system of the fusion device according to claim 6, wherein step S103 is specifically that the special lifting appliance is connected with a lifting system at a factory building of the fusion device, if the superconducting feeder system is suitable for being arranged on a B2 layer of a mainframe hall, the superconducting feeder system assembly is lifted and positioned on the ground of the preassembly hall, and if the superconducting feeder system is suitable for being distributed on an L2 layer of the mainframe hall or an L3 layer of the mainframe hall, the superconducting feeder system assembly is lifted and positioned on the ground of a platform of the corresponding L2 layer or the L3 layer.
8. The method of assembling a superconducting feeder system of a fusion device according to claim 1, wherein step S4 comprises the sub-steps of: S401, integrally jacking the superconducting feeder system assembly through a hydraulic jacking mechanism under the current lead tank and the base module; s402, arranging the travelling mechanism in position below the current lead tank and the base module respectively; s403, integrally descending the superconducting feeder system assembly through the hydraulic lifting mechanism until the superconducting feeder system assembly is completely positioned on the travelling mechanism, and temporarily fixing the travelling mechanism and the superconducting feeder system assembly.
9. The method of assembling a superconducting feeder system of a fusion device according to claim 8, wherein step S5 comprises the sub-steps of: S501, the travelling mechanism conveys and adjusts the superconducting feeder system assembly to an axis corresponding to the installation position, and then moves to the circle center position of the fusion device host; s502, suspending movement after the front end of the feeder frame is lapped to the biological shielding wall window wall; s503, supporting between the front end of the feeder frame and the biological shielding wall window wall body through a hydraulic jack, dismantling the forefront base module, transferring the running mechanism below the forefront base module between the front end of the feeder frame and the biological shielding wall window wall body, decompressing the hydraulic jack, and fixing the running mechanism at the biological shielding wall window wall body and the front end of the feeder frame; S504, continuously moving the superconducting feeder system assembly to a designated position in the circle center direction by the traveling mechanism, suspending the movement, supporting the traveling mechanism between the front end of the feeder frame and the biological shielding wall window wall body by the hydraulic jack, dismantling the next base module, transferring the traveling mechanism below the next base module between the front end of the feeder frame and the biological shielding wall window wall body, decompressing the hydraulic jack, fixing the traveling mechanism at the biological shielding wall window wall body and the front end of the feeder frame, and continuously moving the superconducting feeder system assembly to the next designated position in the circle center direction by the traveling mechanism, and repeating the process until all the base modules are dismantled; S505, the travelling mechanism continues to move the superconducting feeder line system assembly towards the circle center direction until the corrugated pipe at the front end of the superconducting feeder line system assembly is aligned with the Dewar window filler neck, the pre-installed internal feeder line penetrates into the corrugated pipe to form a corrugated pipe section, and superconducting joints between the adjacent corrugated pipe sections and the feeder line sections are overlapped in an up-and-down staggered mode; s506, jacking the superconducting feeder system assembly together through the hydraulic jacking mechanism and the hydraulic jack, removing all the travelling mechanisms, and lowering the superconducting feeder system assembly together through the hydraulic jacking mechanism and the hydraulic jack until the superconducting joint is overlapped, the corrugated pipe is matched with the Dewar window filler neck group, and the supporting blocks of the superconducting feeder system are positioned on the positioning supporting seats.
10. The assembly installation method of the superconducting feeder system of the fusion device according to claim 9, wherein if the superconducting feeder system is suitable for being arranged on the layer B2 and the superconducting feeder system assembly is located on the ground of the preassembly hall, the superconducting feeder system assembly is transported to a lifting platform through the travelling mechanism, the lifting platform downwards transports the superconducting feeder system assembly to the layer B2, the travelling mechanism transports the superconducting feeder system assembly to the vicinity of the corresponding installation position, the superconducting feeder system assembly is adjusted to the axis of the corresponding installation position, and then the central position of the fusion device host is moved; if the superconducting feeder system is suitable for being arranged on the L2 layer or the L3 layer, the travelling mechanism directly conveys and adjusts the superconducting feeder system assembly to the axis of the corresponding installation position, and then moves to the circle center position of the fusion device host.
11. The method of assembling a superconducting feeder system for a fusion device according to claim 1, wherein in step S6, the cleanliness class of the clean zone is ISO9, the temperature of the clean zone is controlled to 25±1 ℃, and the humidity of the clean zone is controlled to <70% RH.
12. The assembly type installation method of the superconducting feeder line system of the fusion device according to claim 11, wherein the cleaning area is a closed space formed by a protective cover installed on the main body supporting frame module, holes for connecting a fresh air pipeline and a smoke exhaust pipeline are preset in the protective cover, and after the quantity of dust in air in the closed space meets the ISO 9-level requirement, all parts in the closed space are cleaned again.
13. The assembly type installation method of the superconducting feeder system of the fusion device according to claim 12, wherein the sealed space is provided with a transfer inlet and a transfer outlet, and the transfer inlet and the transfer outlet are provided with a sealed door and a wind shower buffer area.
14. The method of assembling a superconducting feeder system for a fusion device according to claim 1, wherein step S7 comprises the sub-steps of: S701, performing indium voltage and resistance test on a core wire of the superconducting joint, and then welding and detecting a cooling pipe of the superconducting joint; S702, performing insulation winding and detection on the periphery of a cooling pipe of the superconducting joint; s703, installing an insulating part, a supporting part and a cold screen jumping pipe outside an insulating winding layer of the superconducting joint, and welding and detecting the cold screen jumping pipe at the superconducting joint; And S704, installing a connecting pipe outside the cold shield jumping pipe of the superconducting joint, and welding and detecting the connecting pipe, the corrugated pipe and the outer pipe of the feed line section.
15. The assembly installation method of superconducting feeder system of fusion device according to claim 14, wherein in step S701, the indium crimp joint resistance of the core wire of the superconducting joint is required to be not more than 0.5 nano ohm, and after welding the cooling tube of the superconducting joint, visual inspection, nondestructive inspection, cold and hot impact inspection and helium leak detection are required, and the leak rate required for the helium leak detection is less than 1 x 10 -9 pa.m3/S.
16. The assembly type installation method of the superconducting feeder system of the fusion device according to claim 15, wherein in the step S701, nondestructive testing is carried out on butt welding seams of the cooling pipes, specifically, a flaw detection support is installed on an assembly and installation integrated platform of the superconducting feeder system of the fusion device, a flaw detection radiation protection chamber is built, concentrated radiographic detection is carried out on the butt welding seams of the cooling pipes in batches and at angles according to a principle of outwards from the center, and found defects are processed.
17. The method for assembling a superconducting feeder system of a fusion device according to claim 14, wherein step S702 is specifically performed by performing an ac/dc withstand voltage insulation test and a paschen test after performing insulation winding on the outer periphery of the cooling tube of the superconducting joint.
18. The assembly type installation method of the superconducting feeder system of the fusion device according to claim 14, wherein step S703 is specifically that the insulating part, the supporting part and the cold shield jumper tube are sequentially installed outside an insulating winding layer of the superconducting joint from inside to outside, then, nondestructive detection such as visual inspection, infiltration and the like and cold and hot impact test are carried out on butt welding seams of the welded cold shield jumper tube, and then helium leak detection test is carried out.
19. The assembly type installation method of the superconducting feeder system of the fusion device according to claim 18, wherein in step S703, nondestructive detection is carried out on butt welds of the welded cold-screen jumper tubes, specifically, a flaw detection support is installed on an integrated assembly and installation platform of the superconducting feeder system of the fusion device, a flaw detection radiation protection chamber is built, radiographic detection is carried out on the butt welds of the welded cold-screen jumper tubes, and the found flaws are processed.

Description

Assembling type installation method of superconducting feeder line system of fusion device Technical Field The invention relates to the technical field of fusion devices, in particular to an assembly type installation method of a superconducting feeder system of a fusion device. Background The superconducting feeder system of the fusion device is a key component for connecting a superconducting magnet with a room temperature power supply and a low-temperature refrigerating system, and is mainly responsible for transmitting large current and low-temperature medium to realize the environment transition from 4.5K ultralow temperature (-269 ℃) to room temperature, and is called as a 'life line' of the magnet system. The installation process of the existing superconducting feeder system mainly adopts a mode of hoisting and welding the subsection parts on site, namely, a current lead tank, a superconducting feeder elbow section (short for elbow section), a superconducting feeder straight section (short for straight section) and the like are respectively hoisted on a construction site, and then field welding connection is carried out. The connection and insulation construction of each superconducting joint relate to a plurality of professions such as hoisting in place, 3D measurement, reverse engineering, high-precision machining, mechanical assembly, welding, helium leakage detection, cold and hot impact under liquid nitrogen, insulation winding, AC/DC high-voltage test and the like, and have extremely high control requirements on the construction process. The prior art has the following main technical problems: The construction period is long, a large amount of welding work is required to be carried out on the installation construction site of the fusion device host hall in the traditional sub-part field hoisting welding process, the connection and insulation construction of each superconducting joint involve a plurality of quality control steps, and the field workload is huge. The cleaning environment is difficult to control, the fusion device has extremely high requirements on cleanliness, the superconducting coil is installed in a clean workshop, the environmental humidity is controlled below 70%, and the cleanliness is controlled at the ISO 9 level. Contaminants are easy to generate in the field welding process, so that the cleanliness requirement of the fusion device is difficult to meet, and the cold quality and the service life of a feeder line are influenced. The radiographic inspection frequency is high, and the radiographic inspection detection is required to be carried out for a plurality of times after the field welding is finished so as to ensure the welding quality. The feeder line system is a multi-pipeline integrated structure, each welded joint needs to be subjected to flaw detection independently, flaw detection is required to be performed in batches and at different angles in order to ensure flaw detection accuracy, flaw detection frequency is high, other site construction operations are affected, and construction cost and construction period are increased. The installation accuracy is difficult to ensure, the traditional installation method mainly depends on manual operation, the efficiency is low, and the installation error is easy to cause. Particularly when installing in narrow and small space, because lack suitable bearing structure, interior subassembly takes place to empty or warp easily in the installation, has increased installation degree of difficulty and potential safety hazard. The field operation risk is high, the field subsection piece hoisting needs multiple hoisting operations, the overhead workload is large, the feeder line component is heavy and has high value, the component is easy to shake and collide in the hoisting process, the component is deformed or damaged, and the personnel safety risk is high. The prior art also has significant limitations in terms of: The technical complexity is high, and one optical welding method comprises different welding methods such as argon arc welding, vacuum brazing, soldering, electron beam welding and the like. The quality control difficulty is high, the manufacturing tolerance of the superconducting component needs to be controlled at the sub-millimeter level, the interface precision needs to be controlled at the millimeter level, and the superconducting component needs to meet the detection requirements of insulation resistance under kilovolt alternating current-direct current withstand voltage, paschen test and the like. The field installation environment is limited, the space in a fusion device factory building is limited, the assembly work of a feeder line system has high requirements on cleanliness, the traditional assembly method is easy to generate pollutants, interference with a host structure is easy to occur in the assembly process, and meanwhile, an assembled platform is difficult to accurately calibrate, so that the install