Soda system
CHPP's soda systems consist of boilers, steam turbines, condensers, high and low pressure heaters, condensate pumps and feed pumps, including soda circulation, chemical water treatment and cooling systems. The water in the boiler is heated to steam, further heated by the heater to superheated steam, and then passed through the main steam line into the turbine. As the steam expands, its high-speed flow turns the blades of the turbine, which in turn turns the generator. To further improve its thermal efficiency, waste steam is usually taken from some intermediate stages of the turbine to heat the feed water. This feed water regeneration cycle is used in modern large steam turbine equipment.
In addition, the ultra-high pressure device also adopts reheat cycle, that is, the steam to complete the work steps is taken out from the outlet of the high-pressure cylinder of the turbine, and all the steam discharged from the work is sent to the reheat steam of the boiler for heating, and then injected into the turbine. The intermediate pressure cylinder continues to expand to do the work, and steam from the intermediate pressure cylinder is directed to the turbine. The low pressure cylinder continues to work. In the process of continuous operation with steam, the pressure and temperature of steam are constantly reduced, and finally discharged into the condenser and cooled by cooling water, condensing into water. Condensate condenses at the base of the condenser, is pumped by a condensate pump, heated by a low-pressure heater, and deoxygenated by a deaerator. The feed pump delivers preheated and deoxidized water to the high-pressure system. The pressure heater adds the heated hot water to the boiler and heats it into superheated steam in the superheater, which is sent to the steam turbine to work. Do the work over and over again in this way. Steam and condensed water in the gas system, because many pipes and many valve equipment need to be cleaned, it will inevitably trip, burst, leak, leak, etc., which will lead to more or less water loss. Therefore, we must continue to add chemically treated softened water to the system, usually added to the deaerator. The feed pump delivers preheated and deoxidized water to the high-pressure system. The pressure heater adds the heated hot water to the boiler and heats it into superheated steam in the superheater, which is sent to the steam turbine to work. Do the work over and over again in this way. Steam and condensed water in the gas system, because many pipes and many valve equipment need to be cleaned, it will inevitably trip, burst, leak, leak, etc., which will lead to more or less water loss. Therefore, we must continue to add chemically treated softened water to the system, usually added to the deaerator. The feed pump delivers preheated and deoxidized water to the high-pressure system. The pressure heater adds the heated hot water to the boiler and heats it into superheated steam in the superheater, which is sent to the steam turbine to work. Do the work over and over again in this way. Steam and condensed water in the gas system, because many pipes and many valve equipment need to be cleaned, it will inevitably trip, burst, leak, leak, etc., which will lead to more or less water loss. Therefore, we must continue to add chemically treated softened water to the system, usually added to the deaerator. The heated hot water is added to the boiler and heated into superheated steam in the superheater, which is sent to the steam turbine to work. Do the work over and over again in this way. Steam and condensed water in the gas system, because many pipes and many valve equipment need to be cleaned, it will inevitably trip, burst, leak, leak, etc., which will lead to more or less water loss. Therefore, we must continue to add chemically treated softened water to the system, usually added to the deaerator. The heated hot water is added to the boiler and heated into superheated steam in the superheater, which is sent to the steam turbine to work. Do the work over and over again in this way. Steam and condensed water in the gas system, because many pipes and many valve equipment need to be cleaned, it will inevitably trip, burst, leak, leak, etc., which will lead to more or less water loss. Therefore, we must continue to add chemically treated softened water to the system, usually added to the deaerator. Because there are more pipes and more valve equipment to clean, it will inevitably cause, burst, water leakage, water leakage and other phenomena, which will lead to more or less water loss. Therefore, we must continue to add chemically treated softened water to the system, usually added to the deaerator. Because there are more pipes and more valve equipment to clean, it will inevitably cause, burst, water leakage, water leakage and other phenomena, which will lead to more or less water loss. Therefore, we must continue to add chemically treated softened water to the system, usually added to the deaerator.
Combustion system
Combustion system consists of coal transport, coal grinding, coarse and fine separation, powder, powder, boiler, dust removal, desulfurization. From the bunker by electromagnet, coal crusher by belt conveyor into the bunker between the coal, and then through the coal feeder into the mill for grinding, pulverized coal through the air heater. . The hot air blows the crushed coal into the coarse and fine separator. The coarse and fine separator sends the qualified broken coal (unqualified broken coal is returned to the mill) into the crushing hopper through the crusher, and the pulverized coal is blown into the atomizer, and the burner is sent into the boiler for incineration.
Supply system
The power generation system is composed of secondary exciter, excitation plate, main exciter (standby exciter), generator, transformer, high voltage switch, feed-power station, distribution device, etc. The current from the secondary exciter is rectified by the field disk and directed to the primary exciter. After the main exciter generates electricity, it passes through the voltage regulator and excitation cut-off switch, and reaches the generator rotor through the carbon brush. A generator rotor senses current by rotating its stator windings.
