Device and method for adjusting and replacing swing sensor of hydraulic turbine set on line

A sensor and unit technology, applied in the direction of machines/engines, hydropower, mechanical equipment, etc., can solve the problem that the online monitoring system of the unit cannot correctly reflect the swing data, and affects the operation and maintenance personnel on the operation status of the unit.

CN113530741AActive Publication Date: 2021-10-22CHINA YANGTZE POWER
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-10-22

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Abstract

The invention discloses a device and a method for adjusting and replacing a swing sensor of a hydraulic turbine set on line.An adjusting mechanism is connected with a fixed plate, a bracket is matched with a guide rod of the adjusting mechanism, a mounting rod is connected with the bracket and the swing sensor, and the bracket is limited through a limiting groove and a limiting block on a guide pipe. The guide rod rotates to drive the bracket to drive the swing sensor to move in an axial direction of the guide pipe to be close to or away from a set large shaft, and a gap sensing value of the swing sensor is adjusted or the swing sensor is replaced in the running state of the set. The device disclosed by the invention solves the problem that the swing sensor can only be adjusted and replaced after an original hydraulic turbine set is shut down, so that large shaft swing data cannot be monitored, and judgment of operation and maintenance personnel on the running state of the set is affected and has the characteristics that the structure is simple, the set does not need to be shut down when a swing sensor gap is adjusted or the swing sensor is replaced without influencing online monitoring of the swing data, accurate judgment of the operation and maintenance personnel of the set is facilitated, and the device is safe and reliable and is simple and convenient to operate.
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Description

technical field

[0001] The invention belongs to the technical field of on-line monitoring of water turbines, and relates to a device and method for online adjustment and replacement of a swing sensor of a water turbine unit. Background technique

[0002] The installation of the swing sensor of the turbine must be completed before the operation of the unit, and the clearance adjustment between the swing sensor and the main shaft of the turbine must be completed. The current problem is that once the unit finds that the gap value is incorrect or the swing sensor fails during operation, it must be adjusted or replaced after the unit is shut down, which leads to the fact that the unit’s online monitoring system cannot correctly reflect the swing during the unit’s operation. The data affects the correct judgment of the operation and maintenance personnel on the operating status of the unit. Contents of the invention

[0003] The technical problem to be solved by the present inv...

Examples

Embodiment Construction

[0040] like Figure 1~Figure 7 Among them, a device for online adjustment and replacement of the swing sensor of a water turbine unit, which includes a fixed plate 1, an adjustment mechanism 2, a bracket 3, a mounting rod 4, and a swing sensor 5; the bushing 22 of the adjustment mechanism 2 is located on the fixed plate The two ends of the guide tube 11 of 1 cooperate with it, the guide rod 21 cooperates with the shaft sleeve 22, the bracket 3 cooperates with the guide rod 21 and is limited by the guide tube 11, the installation rod 4 is connected with the bracket 3 and the swing sensor 5; the guide rod 21 rotates and drives the bracket 3 drives the swing sensor 5 to move axially along the guide tube 11. The structure is simple, the adjustment mechanism 2 is connected with the fixed plate 1, the bracket 3 cooperates with the guide rod 21 of the adjustment mechanism 2, the installation rod 4 is connected with the bracket 3 and the swing sensor 5, the limit groove 12 and the lim...