The three main equipments of thermal power plants are composed of boiler system, steam turbine system and generator system. The state requires the pollutants of the power plant to reach zero emission, so that the emission of the power plants must be handled more highly, and the filtration requirements of each link are very high. This imposes a relatively high requirement on the filter capacity of the filter element. Here’s to give you a brief introduction of what types of filter elements are needed in the thermal power plant.
1. Bucket Wheeler: The role is to excavate the coal from the coal yard onto the belt conveyor. Its shape is a long arm excavator that can rotate. The machine system is also mainly driven by hydraulic oil and mainly uses hydraulic system filters. For example: bucket wheel pitching hydraulic station filter (hydraulic filter), bucket turbine variable pitch station filter, bucket wheel pitching hydraulic station air filter.
2. Belt conveyor: The role is to transfer coal, the belt tensioning device is its main addition, through the hydraulic oil system to power the hydraulic cylinder of the tensioning device, using the filter element in the hydraulic oil system.
3, coal mill: the coal crushed into pulverized coal, to achieve the complete combustion of coal as possible. In coal power plants, coal mills are large-scale equipment and are placed in the room to be driven by large motors. After the coal blocks pass through the coal mill, they enter the screening equipment and the large-size coal blocks are recovered and crushed, and the fine powder is sent to the coal bunker. in. Its main oil system is hydraulic oil system and lubricating oil system, such as: coal mill high-pressure oil station filter, coal mill high-pressure oil station sheet filter, coal mill deceleration oil cooler filter, coal mill spindle oil filter, etc. .
4. Coal trains and unloading machines (also known as tipping machines): In some thermal power plants, train trains are used to transport coal, which has strong transport capacity, large transport volume, and low cost. However, thermal power plants are equipped with unloading machines, and the unloading machine puts the car into the internal combustion system. The dumping of coal at the coal yard is mainly driven by a hydraulic system. Filters are mostly used for hydraulic oil filters, such as: filter cartridges for dumper wheels, oil filters for dumper wheels, air filter cartridges for dumpers, etc. Some power plants There is no unloading machine for using coal to transport coal.
5. Coal bunker feeder: The pulverized coal pulverized by the coal mill is sent to the coal bunker by the silo belt conveyor and then supplied to the boiler by the coal feeder. The coal feeder sends the pulverized coal into the middle of the boiler, and the first fan blows through the bottom of the boiler and pulverized coal convection, blowing the pulverized coal into the combustion chamber. Its main use of oil filter.
6. Steam Turbine: The main principle is to use boiler steam to drive the rotation of the impeller to drive the generator to generate electricity, which is mainly a large-scale mechanical energy conversion equipment. The main use of the filter is the hydraulic oil filter and the lubricating oil filter. The filter has a built-in hydraulic oil filter. Accuracy According to the purity of the oil filter required.
7. Generator: Use magnetic induction theory to generate electricity. Generators mainly use lubricating oil filters, and the filter accuracy is quite high.
8. Boiler system: The boiler is one of the three major power plants of the power plant and is the heart of the thermal power plant. There are three cycles through the boiler system: pulverized coal is burned and turned into fly ash; the water is sent to the steam turbine through the boiler and the air is mixed into smoke through the boiler.