Steam turbine differential expansion and valve position instrument verifying device

A technology for calibrating devices and steam turbines, which is applied in the direction of adopting mechanical devices, mechanical measuring devices, measuring devices, etc., can solve problems such as complete calibration of differential expansion instruments, and achieve the goals of improving calibration efficiency, saving costs, and improving calibration accuracy Effect

Active Publication Date: 2015-09-09
JIANGSU NUCLEAR POWER CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the particularity of the shape and measurement principle of the differential expansion instrument in nuclear power plants, there is currently no special calibration device for a complete set of calibration of the differential expansion instrumen

Method used

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  • Steam turbine differential expansion and valve position instrument verifying device

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and embodiment a kind of that the present invention provides is introduced:

[0017] A steam turbine differential expansion and valve position meter calibration device, including a calibration component 24, a control box 15, a portable computer 21, a USB data line 16, a control circuit 2, a universal adjustment bracket 18, a spare fixture C19 and a locking handle C20, wherein the verification component 24 is connected to the control circuit 2, and the control box 15 is connected to the portable computer 21 through a USB data line; the spare clamp C19 and the locking handle C20 are installed on the verification component 24.

[0018] The verification assembly 24 includes a driving stepper motor 1, a base 3, a guide rail 4, a lead screw 5, a moving fixture mounting plate 6, a locking handle A7, a fixture A8, a moving fixture 9, a fixture B10, a lock Tight handle B11, fixing device A12, fixing device B13, accessory mounting ho...

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Abstract

The invention belongs to the field of nuclear power station instrument error verification and relates to a steam turbine differential expansion and valve position instrument verifying device. The steam turbine differential expansion and valve position instrument verifying device achieves convenient and fast verification operation of differential expansion and valve position instruments, ensures accurate and reliable steam turbine differential expansion and valve position instrument verification, improves maintenance efficiency of steam turbine displacement instruments, and guarantees stable operation of a unit. The steam turbine differential expansion and valve position instrument verifying device comprises a verifying assembly, a control box, a portable computer, a USB data line, a control line, a universal adjusting support, a standby clamp C, and a locking handle C. The verifying assembly is connected with the control box through a control line. The control box is connected with the portable computer through the USB data line. The standby clamp C and the locking handle C are installed on the verifying assembly.

Description

technical field [0001] The invention belongs to the field of instrument error calibration of nuclear power plants, and relates to a calibration device for steam turbine differential expansion and valve position instruments. Background technique [0002] Generally, each steam turbine in a nuclear power plant has 6 sets of differential expansion gauges, 4 sets of high-pressure valve position gauges, and 4 low-pressure inlet steam valve position gauges. According to the plan of the maintenance outline and the importance of the instrument, every overhaul of the displacement instrument of the steam turbine shall be checked and verified in the laboratory and on site. [0003] In view of the particularity of the shape and measurement principle of the differential expansion instrument in nuclear power plants, there is currently no special calibration device for a complete set of calibration of the differential expansion instrument, and only the LVDT linear voltage differential senso...

Claims

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Application Information

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IPC IPC(8): G01B5/02
Inventor 黄潜徐霞军涂彩清黄亚宁张海滨侯耀张成立杨林远凌农朱峰张桂虎张建佟海威范学英侯绍辉吴金堤
Owner JIANGSU NUCLEAR POWER CORP
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