A reactor pressure vessel modular support
A pressure vessel and modular technology, applied in reactors, nuclear power generation, nuclear engineering, etc., to avoid interference and improve support stability
Active Publication Date: 2016-03-09
NUCLEAR POWER INSTITUTE OF CHINA
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Problems solved by technology
Since the support structure is a whole ring, it is required that there should be no radial pipe structure arrangement within a certain height near the support position, and it is not suitable for the support of pressure vessels whose center of gravity of the reactor weight is higher than the center of the main pipe of the pressure vessel.
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[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] Such as figure 1 , figure 2 As shown, a reactor pressure vessel modular support includes four modular supports, and a single modular support forms the final support structure through on-site installation. Provides convenience and saves layout space, they are evenly arranged around the reactor pressure vessel, the bottom of the support is fixed on the concrete foundation, and the reactor pressure vessel is fixed on the central part of the support support through the support pad 4 provided on the outer wall of the cylinder , the main pipe connection of the pressure vessel is led out from the gap between the supports.
[0018] Such as image 3 , Figure 4 with Figure 5 As shown, the modular support includes a T-shaped support body 3, which includes a support upper plate 8 at the top, a support bottom plate 14 at the bottom, and an ...
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The invention belongs to a support for a reactor pressure vessel of a nuclear power station, and particularly relates to a support which can fix the pressure vessel around the pressure vessel, guard against earthquake and other impact loads and meanwhile allow a part of dimensional change caused by temperature change of the pressure vessel. The support comprises four modularized seats which are uniformly arranged around the reactor pressure vessel, wherein the bottoms of the seats are fixedly arranged on a concrete foundation. The support has the advantage that the interference of a support structure or support foundation concrete and a vessel connecting pipe can be effectively avoided by arranging the independent support seats on the outer wall of the pressure vessel and arranging the modularized seat support structure. By using modularized manufacturing, transportation and mounting and through combined use of a plurality of modules, a main pipeline of the pressure vessel can be kept away; and the support position is arranged close to gravity elevation of the pressure vessel, so that the stability, the safety and the economy of the support are improved.
Description
technical field [0001] The invention belongs to a support for a reactor pressure vessel of a nuclear power plant, and in particular relates to a support capable of fixing the pressure vessel around the pressure vessel to prevent earthquakes and other impact loads, while allowing partial size changes of the pressure vessel due to temperature changes. Background technique [0002] The reactor pressure vessel is one of the key equipment of the entire nuclear power plant reactor and the primary circuit system, and is an important part of the pressure boundary. structure etc. In the containment, in order to effectively fix the reactor pressure vessel and ensure the safe operation of the entire reactor, a reactor support structure must be installed. The weight of the entire nuclear power plant reactor is relatively large. The pressure and temperature of the entire coolant system will change between the operation and shutdown of the entire reactor. At the same time, the impact of ...
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IPC IPC(8): G21C13/024
CPCY02E30/30
Inventor 甘斌陈树谭波何震宋丹戎田俊科
Owner NUCLEAR POWER INSTITUTE OF CHINA