Wireless vibration monitoring system applied to auxiliary machine of thermal power plant and provided with self power generation device

Abstract

The invention discloses a wireless vibration monitoring system applied to auxiliary equipment of a thermal power plant and provided with a self power generation device. The system is composed of a data acquisition module, a self power generation module, a data processing module, a data transmission module and an APP intelligent device client side. A vibration signal of the auxiliary machine is preprocessed through a DSP high-speed processor and is sent to an intelligent device terminal through a Bluetooth interface or a Wi-Fi interface, in this way, a user can receive vibration information and fault early warning information conveniently and rapidly, and offline diagnosis of equipment faults can be achieved. According to the system, the bistable state piezoelectric vibration power generation technique is adopted, equipment vibration energy is converted into electric energy, self power supply of the wireless monitoring system is achieved, the application environments of the wireless monitoring system are widened, monitoring of vibration of the auxiliary equipment of the thermal power plant is effectively achieved in the severe environment, safe and reliable operation of the auxiliary equipment is guaranteed, and productive benefits of the power plant are greatly increased.

Description

Technical field: [0001] The invention belongs to the field of power plant equipment fault monitoring, and relates to a mobile terminal-based wireless vibration monitoring system with a self-power supply device. Specifically, it is the vibration monitoring of auxiliary equipment in thermal power plants. Background technique: [0002] There are a large number of high-speed rotating auxiliary equipment in thermal power plants, such as coal mills, primary fans, ventilators, downstream fans, open and close water pumps, electric feed water pumps, condensate water pumps, circulating water pumps, etc. This type of equipment usually works in a harsh environment with a lot of dust, high temperature, and high humidity, and has the characteristics of wide distribution, large number, and difficult monitoring. At the same time, these devices are also the key to the power generation process. Any problem in any part or an accident in a certain device may cause a shutdown accident of the ge...

AI Technical Summary

Problems solved by technology

This method of monitoring not only has poor precision and low degree of automation, but also technicians cannot conduct on-site measurement of auxiliary equipment that works at high temperature and has a lot of dust

There is also wireless monitoring, which has great advantages over the above two monitoring methods, but there are many problems in the power supply of wireless sensor network nodes, such as the use of power line power supply, there are problems of difficult wiring and high cost; such as using chemical batteries for power supply, There are problems such as environmental pollution and difficulty in battery replacement.

Furthermore, the client side of the traditional wireless monitoring system is based on the PC. Due to the limitation of the working environment of the PC, technicians can only be limited to the monitoring center to browse equipment vibration information and receive fault warning information.

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