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Skirt-type supporting device provided with embedded parts and used for reactor pressure vessel

A pressure vessel and support device technology, applied in the field of reactor pressure vessel support, can solve problems such as inconvenient in-service inspection, failure to meet support requirements, lack of support bases for pressure vessels, etc., and achieve the effect of facilitating positioning and ensuring safe operation

Inactive Publication Date: 2017-01-04
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the existing pressure vessel support structure covers the important weld seam of the reactor pressure vessel cylinder, which is not conducive to the in-service inspection of the test reactor pressure vessel weld seam, and the surrounding of the pressure vessel lacks a support platform, which cannot To meet the support requirements, the purpose of the present invention is to provide a skirt support device with embedded parts for reactor pressure vessels, using a skirt support, the upper end of the skirt support is welded to the reactor pressure vessel, and the lower end of the skirt support passes through The anchor bolts are fixed on the embedded parts at the bottom of the reactor, and the above-mentioned skirt support is set to solve the problem that the existing reactor pressure vessel support structure shields the weld seam of the vessel and is not convenient for in-service inspection, and the whole skirt support can solve the problem of pressure vessel inspection. The problem of effective support

Method used

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  • Skirt-type supporting device provided with embedded parts and used for reactor pressure vessel
  • Skirt-type supporting device provided with embedded parts and used for reactor pressure vessel
  • Skirt-type supporting device provided with embedded parts and used for reactor pressure vessel

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Embodiment 1

[0032] Such as figure 1 , figure 2 , image 3 As shown, a skirt support device with embedded parts for a reactor pressure vessel of the present invention includes a skirt support 1, a embedded part 5, and a stop block 7. The upper end of the skirt support 1 is connected to the reactor pressure vessel , The lower end of the skirt support 1 is fixed on the embedded part 5, and the stop block 7 passes through the embedded part 5 and is embedded in the concrete foundation 10.

[0033] In the embodiment of the present invention, the skirt support 1 is made of steel plate rolled into a cylindrical or conical cylinder, and a specific connection method of a medium support or a spherical support as a support member and the reactor pressure vessel is a skirt The upper end of the support is welded to the pressure vessel, the lower end of the skirt support 1 is supported on the pit embedded part 5. The skirt support 1 is a well-known device in the field, and its specific structure and funct...

Embodiment 2

[0039] This embodiment is on the basis of embodiment 1, in order to enhance the stability of the pressure vessel and prevent it from tilting horizontally during its operation, it is limited that there is a pressure vessel level adjustment mechanism between the embedded part 5 and the skirt support 1. The horizontal backing plate 8 is provided with a limit plate 9 for limiting the displacement of the horizontal backing plate 8.

[0040] The main function of the horizontal backing plate 8 is to support the pressure vessel vertically and adjust the level of the reactor pressure vessel, and the function of the limit plate 9 is to cause the horizontal backing plate 8 to be level due to uneven gravity distribution during the operation of the reactor Move and rotate to further strengthen the fixation of the reactor pressure vessel. The other structures and principles in this embodiment are common knowledge in the field, and will not be repeated here.

Embodiment 3

[0042] In this embodiment, on the basis of the above-mentioned embodiment, in order to strengthen the support and stability of the pressure vessel, the bottom end of the embedded part 5 is limited to be connected with the screw jack 6. The screw jack 6 is also called a mechanical jack, which supports the embedded part 5 through the self-locking function of the thread, and is used to install and adjust the installation level of the embedded plate. The screw jack 6 is embedded in the concrete foundation 10 to reinforce the embedded parts 5 embedded in the concrete. In this embodiment, the specific structure of the embedded part 5 may be an embedded plate, which can be installed after being processed in the factory and directly transported to the construction site. The other structures and principles in this embodiment are common knowledge in the field, and will not be repeated here.

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Abstract

The invention discloses a skirt-type supporting device provided with embedded parts and used for a reactor pressure vessel. The skirt-type supporting device comprises a skirt-type supporting base, the embedded parts and stopping blocks, the upper end of the skirt-type supporting base is connected with the reactor pressure vessel, the lower end of the skirt-type supporting base is fixed to the embedded parts, and the stopping blocks penetrate through the embedded parts to be embedded into a concrete foundation. According to the skirt-type supporting device provided with the embedded parts and used for the reactor pressure vessel, the skirt-type supporting base is arranged, the upper end of the skirt-type supporting base and the reactor pressure vessel are welded, the lower end of the skirt-type supporting base is fixed to the embedded parts at the bottom of a reactor through foundation bolts, the pressure vessel can be effectively supported and fixed, the outer surface of the reactor pressure vessel is exposed to the maximum degree, in-service inspection is conveniently carried out on the pressure vessel when the reactor runs, and the requirement for supporting the periphery of the pressure vessel is met.

Description

Technical field [0001] The invention relates to the technical field of reactor pressure vessel support, in particular to a skirt support device with embedded parts for a reactor pressure vessel. Background technique [0002] With the increasing shortage of energy sources, nuclear power, as a clean and reliable energy source, has entered a stage of rapid development, and more and more nuclear power plants have been constructed. [0003] The reactor pressure vessel is one of the key equipment of the entire nuclear power plant reactor and primary circuit system, and an important part of the pressure boundary. In a nuclear power plant, the reactor pressure vessel fixes and supports the internal components, core components, control rod drive mechanism, and the top of the reactor. Structure etc. In the containment, in order to effectively fix the reactor pressure vessel and ensure the safe operation of the entire reactor, a supporting structure must be provided. The weight of the entir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C13/024
CPCG21C13/024Y02E30/30
Inventor 何震陈富财田俊科甘斌谭波杜华罗英
Owner NUCLEAR POWER INSTITUTE OF CHINA
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