A high temperature gas-cooled reactor nuclear power plant steam generator cabin module

Abstract

The invention belongs to the nuclear power technique of high temperature gas cooled reactors, and particularly relates to a nuclear power station steam generator cabin module for a high temperature gas cooled reactor. The nuclear power station steam generator cabin module comprises a wall structure, a bottom structure, a shielding cooling water system, an evaporator supporting embedded part and a penetrating part which is installed on the wall structure in a penetrating mode. The wall structure comprises an outer wall body and an inner wall body. The inner wall of the outer wall body and the inner wall of the inner wall body are provided with pieces of supporting angel steel. A shielding cooling water pipe is arranged on the inner wall body. Shearing resistance pins are longitudinally and transversely fixed to the inner walls. A plurality of parallel supporting cross beams are arranged between the inner wall body and the inner wall body in the direction which is perpendicular to the pieces of supporting angel steel. The wall structure is composed of the outer wall body and the inner wall body and made of Q345-C steel plates, and meanwhile, the amount of tied steel arranged between the inner wall body and the outer wall body is effectively decreased through the steel structure which is composed of the pieces of supporting angel steel, the shearing resistance pins and the supporting cross beams; accordingly, the cost is reduced, and more importantly, the stability is good. The supporting embedded part is of a box body structure, internally provided with rib plates and independently and integrally machined, cross construction between the supporting embedded part and a water pipe rebar is avoided, the construction difficulty is reduced, and the construction precision is improved.

Description

technical field [0001] The invention belongs to high-temperature gas-cooled reactor nuclear power technology, and in particular relates to a steam generator cabin of a high-temperature gas-cooled reactor nuclear power plant. Background technique [0002] The high-temperature gas-cooled reactor nuclear power plant is equipped with a shielded cooling water system. The shielded cooling water system is composed of pipelines, valves and other equipment, and is used to cool the evaporator compartment and the pressure vessel compartment during the operation phase of the unit. [0003] According to the existing technology, the construction of the evaporator cabin and the construction of the shielded cooling water system are intersected. The shielded cooling water system is divided into 4 modules for construction. After the construction of the modules is completed, the cabin steel bars are bound and the formwork is supported, and then the concrete is poured. , pouring the evaporator ...

AI Technical Summary

Problems solved by technology

[0004] The design of the existing steam generator cabins has the following problems under this construction technology: due to the configuration of the existing cabin reinforcement modules, the design of the shielded cooling water system only considers the configuration of the shielded cooling water pipe valves. Problems have arisen, and there are many conflicts between the design of the cabin and the design of the shielded cooling water system, which increases the number of design changes, makes the construction difficult, causes waste of manpower and material resources, affects the construction progress and increases the economic cost of the high-temperature reactor; in addition, evaporation The support embedded parts of the device are hoisted on the shielded cooling water support frame, which makes it extremely difficult for the support embedded parts to achieve the adjustment accuracy required by the design; there may also be the following problems. The accumulated errors caused can easily cause some equipment and pipelines (such as the interface pipeline between the main water supply system and the evaporator) to be unable to complete the installation, which increases the difficulty of construction quality control

Images