Measuring device used for measuring drop impact force of control rod

A measurement control and measurement device technology, applied in measurement devices, force/torque/work measuring instruments, instruments, etc., can solve problems such as the inability to use conventional force sensors, save test costs and time, facilitate processing and installation, and measure Accurate and effective results

Active Publication Date: 2015-09-23
NUCLEAR POWER INSTITUTE OF CHINA
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a measuring device for measuring the impact force of a control rod drop, which solves the technical problem in the prior art that conventional force sensors cannot be used for testing, and realizes that the drop height of the control rod is not changed. It ensures the accurate and effective measurement of the impact force data of the buffer structure in the drop bar test. The measuring device is simple in structure, easy to process and install, and achieves the technical effect of saving test funds and time

Method used

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  • Measuring device used for measuring drop impact force of control rod
  • Measuring device used for measuring drop impact force of control rod
  • Measuring device used for measuring drop impact force of control rod

Examples

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Embodiment 1

[0025] In the first embodiment, a measuring device for measuring the impact force of the falling rod of the control rod is provided, please refer to Figure 1-Figure 3 , the device includes:

[0026] Cylinder 4, a through hole 6 is provided in the vertical direction of the cylinder 4, and a groove 7 is provided on the outer surface of the middle part of the vertical direction of the cylinder 4, and the groove 7 makes the middle part of the cylinder 4 a cylinder with a uniform wall thickness M waterproof strain gauges 3 are axially installed on the outside of the cylinder, and each waterproof strain gauge 3 is evenly installed in the middle of the cylinder at a circumferential interval of 360° / M, and the measuring device is replaced and installed on the control rod buffer At the position of the compression ring structure of the assembly.

[0027] where, in practical application, please refer to figure 1 , the measuring device 2 used to measure the impact force of the control ...

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Abstract

The invention discloses a measuring device used for measuring the drop impact force of a control rod. The technical problem that a conventional force sensor cannot be used to measure the impact force in the prior art is solved. The device comprises a hollow cylinder. A through hole is vertically arranged in the center of the hollow cylinder. A groove is arranged on the outer surface of the middle part of the cylinder in vertical direction. Through the groove, the middle part of the cylinder has uniform wall thickness and is cylindrical. A number of waterproof strain gages can be conveniently axially arranged in the groove. A number of waterproof strain gages are uniformly arranged at the middle part of the groove of the cylinder at circumferential equal intervals. The device is arranged on a pressing ring structure of a buffer component of the control rod in a replacement manner. Without changing the drop height of the control rod, impact force data measurement of a drop test buffer structure is accurate and effective. The measuring device has the advantages of simple structure and easy processing and installation. Test cost and time are saved.

Description

technical field [0001] The invention relates to the field of nuclear power equipment research, in particular to a measuring device for measuring the impact force of falling control rods. Background technique [0002] When the reactor is running, the reaction power is controlled by raising the height of the control rods. In emergencies such as earthquakes, the control rods will quickly fall into the core under the action of their own weight to stop the reactor operation. The impact load of the control rods is calculated by the control rod buffer components Therefore, in the design stage of the control rod drive line, a 1:1 test model of the control rod drive line should be used to conduct the drop test to measure the impact force load, and determine the control rod through the test results. Rationality and safety of rod buffer structure design. [0003] Conventional impact force measurement can be carried out with a force sensor. For the slender control rod drive line struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
Inventor 喻丹萍吴小飞聂常华孙磊李硕徐昱根赵新
Owner NUCLEAR POWER INSTITUTE OF CHINA
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