Hoisting method for nuclear power station containment steel liner module
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A nuclear power plant containment and hoisting method technology, applied in the field of nuclear power plant construction, can solve the problems of eccentric module gravity, weak variable cross-section structure, and inability to realize hoisting of steel-lined large thin-walled cylindrical structure modules, etc.
Active Publication Date: 2017-05-31
CHINA NUCLEAR IND 24 CONSTR
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Problems solved by technology
[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a method for hoisting the steel lining module of the nuclear power plant containment, to solve the problem of the inability to realize the hoisting of large thin-walled cylindrical s
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Embodiment 1
[0048] like Figure 1-13 As shown, a nuclear power plant containment steel lining module hoisting method, including steps:
[0049] Step 1: If figure 1 As shown, select the lifting equipment, use the existing domestic large-scale crawler crane to hoist 13, select reasonable crane working conditions, test and verify the bearing capacity of the foundation of the crawler crane hoisting route, or carry out necessary reinforcement treatment, and ensure that the module hoisting process is consistent with the The safe distance of the surrounding construction; remove all obstacles in the space where the module hoisting passes, and adjust the surrounding construction tower crane 14 to avoid the hoisting and rotating area of the heavy machine hoisting 13.
[0050] Step 2: If Figure 2-4 As shown, in combination with the characteristics of module one, module two and module three and the lifting equipment design module sling system, the lifting tool is easy to assemble and disassemble...
Embodiment 2
[0060] like Figure 1-13 As shown, a nuclear power plant containment steel lining module hoisting method, before hoisting, the ground bearing capacity of the crane hoisting 13 travel route is verified and necessary reinforcement is performed, all obstacles in the space passed by the module hoisting are removed, and the tower crane 14 is adjusted to avoid Heavy machinery hoisting 13 hoisting rotating area.
[0061] Hoist the crane 13 and drive to the lifting position of the module, follow the attached Figure 1-4 As shown, the module sling system is assembled and connected; the crane hoist 13 travels to the module hoisting position.
[0062] Start the hoisting 13 of the heavy machine, complete all hoisting actions according to the formal hoisting action flow, and measure whether there are obstacles within the radius of 25m from the center of the crane hook 1 at the same time, and remove them.
[0063] According to attached Image 6 , 7 , 8 and 13 add the circumferential lim...
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Abstract
The invention discloses a hoisting method for a nuclear power station containment steel liner module. The hoisting method comprises the steps that 1, hoisting equipment is selected, and experimental verification is conducted on bearing capacity of the foundation of the traveling route of the hoisting equipment; 2, the characteristics of the module and the hoisting equipment are combined, a module wire rope sling system is designed, and a hoisting point for hoisting of the steel liner module is arranged on the dorsal rib of an upper opening of the module; 3, the eccentric state of the module is analyzed through software calculation, a balancing weight is arranged for the module according to analytical data, and the gravity center is adjusted through balance weight; 4, the module is reinforced, and the effect that deformation in the hoisting process can be controlled is ensured; 5, shakeproof devices are arranged at a plurality of azimuth angles of the module, shaking is prevented from occurring at the moment when the module is hoisted and leaves the ground, and the shakeproof devices are removed after the module is 0.5 m far away from the ground and is stable; 6, the module is provided with an in-position centering device which comprises a circumferentially installed circumferential limiting device and an radially installed radial limiting device; and 7, formal hoisting is conducted, the module is hoisted to the assigned position in position, and then butt joint is achieved.
Description
technical field [0001] The invention relates to the field of nuclear power plant construction, in particular to a method for hoisting a nuclear power plant containment steel lining module. Background technique [0002] The steel lining of the nuclear power plant containment is located on the inner surface of the cylindrical concrete containment of the nuclear island, and together with the prestressed concrete structure, it forms the third safety barrier of the nuclear reactor. During construction, the steel lining is constructed prior to the concrete construction. During the concrete construction, it is used as an inner formwork, and its design function is to contain air-soluble radiation and play a sealing role. In order to reduce the high-altitude operation during the construction of the containment steel lining of the nuclear power plant, reduce the time and space overlap with the concrete construction, and shorten the construction period of the nuclear power plant, a mod...
Claims
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Application Information
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