Boiler Bubble Level Control System

NegotiableUpdate on 12/10

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The boiler drum liquid level measurement system and the normal range of boiler drum liquid level are important safety indicators for boiler operation. Due to changes in load, combustion conditions, and feedwater flow rate, the level of the steam drum will frequently fluctuate. As is well known, high or rapid fluctuations in liquid level can cause deterioration of steam quality and water carryover, resulting in salt deposition on the heating surface. In severe cases, it can lead to water shock vibration and blade damage in steam turbines; A low liquid level can cause the failure of sewage discharge, the addition of chemicals into the steam in the furnace, and even cause the downcomer to carry steam, affecting the boiler water circulation condition and causing large-scale explosion of the furnace tube. The above-mentioned malignant accidents caused by the measurement and control problems of the steam drum liquid level occur from time to time, seriously affecting the safety of the operation of thermal power plants

Product Details

Details introduction:

Jingwei Automation is a professional manufacturer of vortex flow meters, steam flow meters, sewage flow meters, turbine flow meters, pressure transmitters, liquid level transmitters, temperature sensors, humidity transmitters, and zirconia oxygen analyzers. Through years of market development and excellent product quality, the company has signed long-term supply agreements with multiple listed companies at home and abroad. The company has offices in Shanghai, Shaanxi, Xinjiang, Inner Mongolia, and other places. The company has two departments under its umbrella: the Automation Product Division and the Measurement System Division, which are responsible for the research and sales of our company's automation products and measurement systems

During boiler operation, we monitor and control the steam drum liquid level through a liquid level measurement system. When the steam drum level exceeds the normal operating range, the alarm system will issue an alarm signal, and the protection system will immediately take necessary protective measures to ensure the safety of the boiler and turbine. Therefore, the boiler drum level measurement system is an extremely important system for the safe operation of the unit.

According to the importance of measuring the level of boiler steam drum and the characteristics of measurement technology, the boiler steam drum level measurement system should meet the following basic requirements:
1. Good accuracy
As is well known, the liquid level of the boiler drum is not a parameter that needs to be controlled relative to parameters such as main steam pressure and temperature. Generally, a deviation of less than 30mm between the two drum liquid level measurements is acceptable. It is not very difficult to maintain such a high degree under normal conditions. However, due to the complexity of the measurement object for steam drum water level and the use of connected pipe or differential pressure measurement principles, changes in steam drum pressure and measurement reference conditions can cause significant errors that far exceed the above requirements. So for a long time, ensuring the accuracy of steam drum water level measurement has always been a difficult and key issue in front of us. Jingwei Automation Technology Co., Ltd. has solved this difficulty through differential pressure measurement principle!
2. Good maintainability
The maintenance of the boiler steam drum liquid level measurement system should be simple, with minimal maintenance workload, and should be convenient for conducting online protection linkage tests of actual water level signals.