Role of Air Compressor in Incineration Power Plant

In incineration power plants, air compressors, as core auxiliary equipment, are mainly responsible instrument control air supply, material transportation power, safety support, equipment drive and maintenance, air treatment and purification five functions, the specific role is as follows:

1. instrument-controlled gas supply: ensuring accurate system operation

the automation control system of incineration power plants relies on a large number of precision instruments (such as control valves, transmitters, travel switches, etc.) to achieve precise operation. The action of these instruments requires stable, clean compressed air as the power source. By providing high-pressure air, the air compressor ensures that the instrument runs accurately under preset parameters and avoids control errors caused by air source fluctuations or pollution, thus ensuring the stability of key indicators such as incinerator temperature and flue gas treatment efficiency. For example, in the process of waste incineration, the stability of instrument control directly affects the combustion efficiency and the compliance rate of pollutant emissions.

2. material handling power: to achieve efficient and environmentally friendly material handling

incineration power plants need to deal with a large number of materials, including domestic waste, fly ash, desulfurization limestone powder, etc. The air compressor provides power for the material conveying system through compressed air to realize pneumatic conveying:

• garbage delivery: Transfer domestic waste from the storage bin to the incinerator to avoid secondary pollution caused by manual handling.
• Ash treatment: Transfer the incinerated ash to the ash silo to reduce the risk of dust and leakage.
• Desulfurizing agent delivery: The limestone powder is transported to the desulfurization device to ensure the flue gas purification effect.

Taking a large incineration power plant as an example, the air compressor system can meet the transportation demand of tens of tons of materials per hour, and significantly improve the processing efficiency.

3. Security Support: Response to Unexpected Accident

air compressors are an important part of the safety system of incineration power plants, providing power for safety equipment in emergency situations:

• emergency shut-off valve: In the event of equipment failure or fire, the air compressor drives the shut-off valve to close quickly to prevent the accident from expanding.
• Fire fighting pneumatic equipment such as fire sprinkler systems, pneumatic diaphragm valves, etc., rely on compressed air to achieve rapid response.
• Vacuum system support: Maintain the vacuum degree of the steam turbine to ensure stable output power and avoid increased energy consumption.

For example, an incineration power plant due to air compressor failure led to emergency shut-off valve failure, causing a small-scale fire, direct economic losses of more than one million yuan. Since then, the plant has strengthened the redundant design and regular maintenance of the air compressor system.

4. equipment driver and maintenance: to ensure daily operation

air compressors power pneumatic tools and equipment for incineration power plants:

• pneumatic tools such as pneumatic wrench, spray gun, etc., used for equipment maintenance and repair.
• Valve control: Drive pneumatic valve to realize opening and closing and adjustment to ensure smooth flow.
• Tire inflation: Provide tire inflation service for in-plant vehicles (such as forklifts and transporters).

In addition, the air compressor is also used to purge pipes and equipment to prevent dust accumulation or blockage. For example, the incinerator grasses are periodically purged with compressed air to avoid thermal efficiency degradation due to soot accumulation.

5. air treatment and purification: provide clean air source

incineration power plants have strict requirements on the quality of compressed air, and impurities, moisture and pollutants need to be removed by filtration, drying and other treatments:

• filtration system: Remove particles in the air to prevent the instrument from clogging or wear.
• Drying system: Reduce air humidity, avoid pipeline condensation or corrosion.
• Cooling system: Adjust the air temperature to ensure the stable operation of the equipment.

For example, an incineration power plant uses compressed air treated by a refrigerated dryer to increase the thermal efficiency of the boiler by 5% and extend the service life of the equipment.