Lifting appliance for lifting steel lining of containment vessel in nuclear power station
A nuclear power plant containment and steel lining technology, which is applied in the field of nuclear power, can solve problems such as deformation, affecting the accuracy of penetrating parts, and small thickness of steel lining, and achieve good force bearing effect, light weight, and reduced hoop pressure.
Active Publication Date: 2012-08-15
中广核工程有限公司 +1
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Problems solved by technology
Since the steel lining of the containment vessel is a cylindrical shell, although the overall volume is large, the thickness of the steel lining is small. The rear sling produces a hoop pressure on the steel lining, which is very unfavorable for the thinner steel lining, which may cause excessive deformation and affect the accuracy of the penetration
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[0029] The present invention will be described in detail with a specific embodiment as follows:
[0030] Such as figure 1 , 2 , 3, a spreader for the steel lining of the containment of a nuclear power plant. The spreader is an annular grid structure and includes a coaxial inner ring member 1 and an outer ring member 2. The inner ring member 1 and There is a space between the outer ring members 2 and they are fixedly connected by auxiliary rods 3. The top of the inner ring member 1 or the outer ring member 2 is provided with an upper hanger 4 for crane hoisting, and the bottom of the inner ring member 1 or the outer ring member 2 is provided There is a lower hanger 5 for connecting with the containment steel lining. In order to eliminate the downward pressure of the ring steel lining as much as possible, the steel lining only receives upward pulling force. The lower hanging member 5 is preferably located directly above the steel lining. When the lower hanging member 5 is located a...
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The invention discloses a lifting appliance for lifting a steel lining of a containment vessel in a nuclear power station. The lifting appliance is in an annular grid structure and comprises an inner ring member and an outer ring member which are coaxial, wherein a gap is arranged between the inner ring member and the outer ring member, the inner ring member and the outer ring member are fixedly connected by an auxiliary rod, the top of the inner ring member or the outer ring member is provided with an upper lifting member for crane lifting, and the bottom of the inner ring member or the outer ring member is provided with a lower lifting member connected with the steel lining of the containment vessel. The invention provides a lifting appliance for lifting the steel lining of the containment vessel in the nuclear power station, which has the advantages of lighter weight, good rigidity and lower manufacturing cost and replaces annular pressure converted by lifting force received by thesteel lining to reduce or eliminate the annular pressure borne by the steel lining.
Description
Technical field [0001] The invention belongs to the technical field of nuclear power, and relates to a large-scale spreader, in particular to a spreader used for hoisting the steel lining of the safety shell of a nuclear power station. Background technique [0002] Nuclear power is a direction of power development. At present, my country's nuclear power plants adopt batch construction and modular production of equipment to meet the increasing power demand. The modular production and modular construction of equipment have been fully demonstrated in terms of shortening the construction period, reducing the cost, and improving the economy. The containment steel lining is produced and assembled in the factory to make a complete product, and then the whole is hoisted to the installation site. Because the steel lining of the containment shell is a cylindrical shell, although the overall volume is large, the thickness of the steel lining is small. When hoisting, multiple slings hung up...
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IPC IPC(8): B66C1/22
Inventor 赵超超李家宝董占发李忠诚鲁勤武郭俊营白明鑫张淑霞
Owner 中广核工程有限公司