Material level sensor and its application in thermal power plants

Level measurement is a level measurement in a branch. Level is the storage container or the liquid in the industrial production equipment, powder, granular solid, location of the interface between the gas, depending on the purpose divided liquid level, interface level and material level Crank Shaft Position Sensor . At present, China mainly coal as fuel for power generation, most of the coal power plant boilers are used to feed the boiler. For direct firing boiler feed, coal bunker material level and low relationship to the boiler as well as power generation system can operate normally. Coal Hoppers overfill overflow, causing an accident to take coal; coal bunker material level is too low or emptying may cause unstable combustion or even stop the big fire accident. For storage type boiler feed, both coal bunker, another bunker, bunker pink bits control is particularly important. Silo is a transit point for fuel, coal is transmitted through the air, heat the gas in the coal into the coal bunker there is a certain "base temperature", usually around 70 ° C, and its role is to make coal there are certain discrete. However, Engine Cooling Temperature Sensor in the coal moisture absorption was rapid evaporation of the water discharge pipe positions, the coal will become dry, which is easily pulverized coal collector, the collector of the end result is burning. Burning intensified even warehouses around the collector, again and again, a vicious cycle, so as not timely effective control, the outcome will be a large number of coal burned in vain. According to the information reported spontaneous combustion of pulverized coal power generation accounts for about 0.5% of the total amount of coal around. In addition, the coal bunker coal dust explosion greater loss over the years, coal bunker coal dust explosion accidents often occur, causing huge losses to the thermal power plant. Currently, the most economical and most suitable way is through a reliable level sensor for coal bunker coal bits and pink-bit monitor, it is always in the best transit appropriate control state, which is the primary thermal power generating units to ensure safe operation.