A sun gasket for the support and hanger of steam and water pipelines in nuclear power plants

Abstract

The invention discloses a solar gasket of a nuclear power plant steam-water pipeline support hanger. The solar gasket is ring-shaped and comprises two centrosymmetric, removably-connected and semi-ring-shaped semicircular gaskets; each semicircular gasket comprises an arc-shaped body, a first connection part arranged at one end of the body, a second connection part arranged at the other end of the body, a first locking part arranged on the first connection part and a second locking part arranged on the second connection part; when the two semicircular gaskets are combined to be ring-shaped; the first locking parts and the second locking parts of the two semicircular gaskets are locked with each other. The two semicircular gaskets are locked with each other to form the solar gasket; the solar gasket can be mounted and replaced under the condition that the support hanger is not disassembled; meanwhile, the solar gasket is simple in structure and convenient in batch production; in addition, through the self-locking property of the structure, the risk that the gasket and nuts fall off is avoided.

Description

technical field [0001] The invention relates to the field of nuclear power equipment, in particular to a solar pad for a support and hanger of a steam-water pipeline in a nuclear power plant. Background technique [0002] There are two nuts at the connection part of the steam-water pipeline support and hanger of the nuclear power plant, and the tight and reliable connection is ensured by the torque and friction between the two nuts. [0003] On the one hand, because the steam-water pipeline is inevitably stimulated by the fluid in the pipeline or external excitation, there are different degrees of vibration, which inevitably leads to loosening of the nut; on the other hand, the support and hanger of the steam-water pipeline in nuclear power plants is mainly based on DL\ T982-2005 "Guidelines for Maintenance and Adjustment of Steam-Water Pipelines and Supports and Hangers in Nuclear Power Plants", the maintenance procedures of each power plant's support and hangers are visual...

AI Technical Summary

Problems solved by technology

There are generally thousands of supports and hangers on the conventional island of a nuclear power plant. If they are dismantled and installed one by one, not only will the workload be huge, but it will be difficult to achieve a maintenance time window (the maintenance time window is generally about one month), and more importantly, technically there are Risk: Each support and hanger on the steam-water pipeline has a designed load, and dismantling and installation means unloading the support and hanger, and it is necessary to replace the load of the support and hanger by other means. At the same time, it must be guaranteed The load of each support and hanger on the pipeline and the displacement of the pipeline do not change (changes in load and displacement may lead to changes in the distribution of internal stress in the pipeline, and may cause damage to the pipeline in severe cases), so it is also technically difficult

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