Built-in control rod drive wire guide structure and control rod hydraulic driving system
A guiding structure and control rod technology, applied in the control of nuclear reactions, reducing greenhouse gases, reactors, etc., can solve the problems of unreliable guidance and accurate positioning and fixation, and achieve the effect of reliable guidance and accurate positioning
Active Publication Date: 2020-11-27
TSINGHUA UNIV
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Problems solved by technology
For this reason, the present invention proposes a built-in control rod driving wire guiding structure to solve the problem that the existing built-in control rod driving mechanism cannot be reliably guided and accurately positioned and fixed during the process of rod drop and assembly and disassembly
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[0034] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0035] Such as Figure 1 to Figure 7 As shown, the embodiment of the present invention provides a built-in control rod driving wire guiding structure (abbreviated as "guiding structure" in the embodiment of the present invention). Based on the guiding structure, the embodiment of the present invention also provides a control rod hydraulic drive system (abbreviated as "system" in the embodiment of the present invention). The guide structure can be installed on the core support plate 11 in the reactor of the system, can be matched and fixed with the reactor internal structure, and the guide structure can also be well adapted to the high-temperature and high-pressure environment in the reactor. It c...
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The invention relates to the technical field of nuclear reactor control rod hydraulic driving equipment, in particular to a built-in control rod drive wire guide structure and a control rod hydraulicdriving system. The built-in control rod drive wire guide structure comprises a guide cylinder assembly and a positioning cylinder. The guide cylinder assembly is used for being vertically inserted into a reactor core supporting plate, a shaft cavity is formed in the guide cylinder assembly in the axial direction of the guide cylinder assembly, the positioning cylinder is coaxially arranged in theshaft cavity in a sleeved mode, and a plurality of supporting columns are arranged on the inner wall of the positioning cylinder. According to the invention, a reliable guiding effect and accurate axial positioning and circumferential positioning can be provided for the built-in control rod driving mechanism in the rod falling, assembling and disassembling processes; the structure can be matchedwith a reactor internal structure, so that a support guarantee is provided for reliable operation of the built-in control rod drive wire under the environmental conditions of shock resistance, inclination, swinging, impact and the like; and the structure can also adapt to the high-temperature and high-pressure environment of a reactor, thereby meeting the engineering implementation requirements ofthe control rod hydraulic driving system.
Description
technical field [0001] The invention relates to the technical field of nuclear reactor control rod hydraulic drive equipment, in particular to a built-in control rod drive line guide structure and a control rod hydraulic drive system. Background technique [0002] The nuclear reactor control rod drive mechanism, also known as the reactor control rod drive line, is the most critical safety equipment of the reactor, and is responsible for important functions such as the start-up, power regulation and shutdown of the reactor. According to the installation position of the control rods, the control rod drive mechanism can be divided into an external control rod drive mechanism and an internal control rod drive mechanism. Among them, the nuclear reactor control rod hydraulic driving system is a built-in control rod driving mechanism. The driving mechanism is placed in the high temperature, high pressure and irradiation environment in the reactor pressure vessel. Sequentially driv...
Claims
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IPC IPC(8): G21C7/16G21C7/20G21C19/06G21C19/12G21C19/10
CPCG21C7/16G21C7/20G21C19/06G21C19/12G21C19/10Y02E30/30
Inventor 薄涵亮王金海秦本科赵陈儒刘潜峰
Owner TSINGHUA UNIV