Electric Power ›› 2016, Vol. 49 ›› Issue (5): 102-105.DOI: 10.11930/j.issn.1004-9649.2016.05.102.04

• Genration Technology • Previous Articles     Next Articles

Study on Electronic Belt Scale Online Remote Automatic Testing and Diagnosis System

YANG Minghua1, YU Songqing2, CHEN Huiyun2, HUANG Zhenwei2, XU Feng3   

  1. 1. Zhenjiang Zheneng Wenzhou Power Plant Co., Ltd., Yueqing 325602, China;
    2. Zhejiang Province Institute of Metrology,Hangzhou 310018, China;
    3. Shanghai Lanjian Weighing Technology Co., Ltd., Shanghai 200126, China
  • Received:2016-02-22 Online:2016-05-16 Published:2016-05-16
  • Supported by:
    This work is supported by National Natural Science Foundation of China (No. 51408568).

Abstract: Presently, the electronic belt scale testing is classified as material and simulation testing. However, these two methods can neither eliminate the errors caused by the belt tension changes nor conduct online testing. This paper introduces the structure, principle and functionalities of the electronic belt scale online remote automatic testing and diagnosis system. The system is based on double-weight superposition method, which adopts two testing points for the simulated linear fit of the belt scale, and simultaneously reduces the errors since the ratio of double weights to total load may reach as much as 50%. The overlaid weights which lay directly on the scale offset the effects brought about by the belt tension changes. The test data can be transmitted in real time during material conveying and the belt scale can also be checked both remotely and automatically, which significantly reduces the scale checking and maintenance workload.

Key words: coal-fired power plant, electronic belt scale, remote automatic check, double-weight superposition, diagnosis

CLC Number: