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Large hydraulic damper for supporting nuclear power station main device

A technology for hydraulic dampers and main equipment, applied in mechanical equipment, liquid shock absorbers, shock absorbers, etc., can solve the problems of damping support that cannot exhibit sufficient rigidity, cannot ensure the safe operation of nuclear power main equipment, etc. Anti-corrosion ability, beautiful appearance, the effect of avoiding side load

Inactive Publication Date: 2015-11-18
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] The nuclear-grade large-scale hydraulic damper adopts the hydraulic principle, with the help of the mechanical structure and the specially designed hydraulic valve group, so that the hydraulic medium in the working chamber exhibits damping characteristics to the outside when it is subjected to external loads; when the supported equipment is under vibration (disturbance), earthquake or In accident conditions, the damping support with sufficient rigidity cannot be presented, so that the safe operation of nuclear power main equipment cannot be guaranteed

Method used

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  • Large hydraulic damper for supporting nuclear power station main device

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Embodiment Construction

[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, the large hydraulic dampers used for supporting the main equipment of nuclear power plants include:

[0028] The housing assembly 1, the housing assembly 1 is provided with a cavity 11;

[0029] Oil cylinder 2, the oil cylinder 2 is housed in the cavity 11, the oil cylinder 2 includes a front cover plate 21 and a rear cover plate 22, the front cover plate 21 and the rear cover plate 22 are connected by hexagon socket bolts 31, and there is a gap between them 4;

[0030] Piston 51 and piston rod 52; the piston 51 is accommodated in the gap 4, the piston rod 52 runs through the front cover plate 21, one end is accommodated in the gap 4 and connected to the piston 51, and the other end passes throu...

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Abstract

The invention provides a large hydraulic damper for supporting a nuclear power station main device. The large hydraulic damper for supporting the nuclear power station main device comprises a shell assembly, an oil cylinder, a piston or a piston rod, auxiliary oil cylinders, a fork-shaped pin head and a rear cylinder cover, wherein the shell assembly is provided with a containing cavity; the oil cylinder is contained in the containing cavity; the oil cylinder comprises a front cover plate and a rear cover plate which are connected through screws or bolts, and a gap is reserved between the front cover plate and the rear cover plate. The piston or the piston rod penetrates through the front cover plate, one end of the piston or the piston rod is contained in the gap, and the other end of the piston or the piston rod penetrates through the front cover plate and is located outside the gap. The auxiliary oil cylinders are symmetrically distributed on the periphery of the oil cylinder. The rear cylinder cover is installed on the shell assembly and provided with a joint bearing which is installed on the rear cylinder cover through a bearing pressing plate. The large hydraulic damper for supporting the nuclear power station main device can effectively prevent damage, caused by collision of external foreign matter, to main parts of the damper.

Description

technical field [0001] The invention relates to a large hydraulic damper for supporting main equipment of a nuclear power plant. Background technique [0002] The nuclear-grade large-scale hydraulic damper adopts the hydraulic principle, with the help of the mechanical structure and the specially designed hydraulic valve group, so that the hydraulic medium in the working chamber exhibits damping characteristics to the outside when it is subjected to external loads; when the supported equipment is under vibration (disturbance), earthquake or In accident conditions, the damping support with sufficient stiffness cannot be presented, so that the safe operation of the main nuclear power equipment cannot be guaranteed. [0003] Therefore, how to improve the stiffness of the damper has become an urgent problem to be solved. Contents of the invention [0004] Aiming at the deficiencies of the prior art, the invention proposes a large hydraulic damper for supporting main equipment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/14F16F9/32
CPCF16F9/14F16F9/32
Inventor 施永兵卢格钱亚鹏徐臻王华根蒋运友倪忠钟林秀卢小青贺枫
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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