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Sampling method for quality inspection of primary side end sealing partition plate of nuclear power steam generator

A steam generator and quality inspection technology, applied in sampling devices and other directions, can solve problems such as insufficient verification of the overall quality of the plate and manufacturing stability, and achieve the effect of reducing inspection costs, reducing inspection items, and ensuring repeatability

Active Publication Date: 2018-09-07
SUZHOU NUCLEAR POWER RES INST +2
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  • Abstract
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Problems solved by technology

These inspections are only the minimum requirements for the evaluation of partition boards, and are not enough to verify the overall quality and manufacturing stability of the entire board before the product is formally produced

Method used

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  • Sampling method for quality inspection of primary side end sealing partition plate of nuclear power steam generator
  • Sampling method for quality inspection of primary side end sealing partition plate of nuclear power steam generator
  • Sampling method for quality inspection of primary side end sealing partition plate of nuclear power steam generator

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0046] Such as Figure 1 to Figure 18 As shown, a sampling method for the quality inspection of the primary side head partition plate of a nuclear power steam generator, the treatment process of the primary side head partition plate includes rough machining, solid solution treatment and special heat treatment in sequence. Among them, solution treatment is used to improve the performance of the primary side head separator in terms of strength, toughness or microstructure. The special heat treatment is TT (Thermal Treatment) heat treatment process, which is mainly used to improve the distribution of carbides and improve the corrosion resistance of the primary side head separator.

[0047] Such as Figure 1 to Figure 3 Shown is a schematic diagram of the test point distribution of the chemical composition uniformity of the primary side head partition pla...

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Abstract

The invention relates to the technical field of nuclear power station heat insulation systems, in particular to a sampling method for quality inspection of a primary side end sealing partition plate of a nuclear power steam generator. According to the sampling method, various production factors and application conditions in the sampling process can be sufficiently considered, the overall quality of the primary side end sealing partition plate of the steam generator can be comprehensively inspected by virtue of hardness uniformity test, chemical component uniformity test, normal-temperature tensile test, high-temperature tensile test, room-temperature impact test, hardness test, grain size detection, distribution of carbides, nonmetal impurity analysis, and chemical analysis of finished products of the primary side end sealing partition plate of the steam generator, the production capability and management capability of a manufacturer can be verified, whether the quality of the primaryside end sealing partition plate of the steam generator meets the design and nuclear security requirement or not can be judged, the repeatability of the production quality can be ensured, the inspection items are effectively reduced, and the inspection cost is maximally decreased.

Description

technical field [0001] The invention relates to the technical field of heat insulation systems of nuclear power plants, in particular to a sampling method for quality inspection of a primary side head partition plate of a nuclear power steam generator. Background technique [0002] As a new type of energy efficient, energy-saving and environmentally friendly, nuclear power meets the needs of sustainable development. Under the background and constraints of international low-carbon development, nuclear power is favored by countries all over the world because of its clean and low-carbon characteristics. However, the mature manufacturing technology of key components of nuclear power is only controlled in a few manufacturing plants, which is far from meeting the needs of nuclear power development. In order to achieve the goal of my country's nuclear power development plan, combined with the development strategy of my country's nuclear power domestic technology policy, the first t...

Claims

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Application Information

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IPC IPC(8): G01N1/04
CPCG01N1/04
Inventor 张绍军梁书华刘钊赵东海阚玉琦吴洪杨文彬陈红张文中
Owner SUZHOU NUCLEAR POWER RES INST
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