Siklus Cold Startup (PLTU)

Summary

This video outlines the startup procedure of a boiler system after a shutdown of over 75 hours. The process begins with activating various pumps and fans to fill the condenser and deaerator, followed by feeding water into the boiler steam drum. Initial combustion is carried out using oil, and once the turbine is operational, coal feeding begins. After successful synchronization with the 500-kilovolt supply grid, the oil supply is cut off, and the boiler runs entirely on coal. The video provides a step-by-step guide to safely restarting the boiler system.

Takeaways

• 😀 The custard process starts after a shutdown of more than 75 hours.
• 😀 The process begins by operating the condensed transfer pump to fill the condenser with water.
• 😀 The next step involves starting the condensed extraction pump to fill the dear.
• 😀 The weller feed pump is turned on to fill the Boiler Steam drum with water.
• 😀 After the water filling, the FB fans and ER header are activated to force the boiler.
• 😀 Initial combustion in the boiler is done using fuel oil.
• 😀 Once the boiler is ready, the turbine starts spinning.
• 😀 The paint process begins after the turbine starts.
• 😀 The goldfeder and mill are activated to supply coal to the boiler.
• 😀 The boiler shifts from fuel oil to coal as the main combustion fuel after synchronization with the 500 kV grid.
• 😀 After synchronization, the full oil supply is cut off, and the boiler runs completely on coal.

Q & A

What is the first step in the startup process described in the script?

The first step is to operate the condensed transfer pump to fill the condenser with water.

What is the purpose of the condensed extraction pump in this process?

The condensed extraction pump is used to fill the condenser with demineralized water.

What does the weller feed pump do in the system?

The weller feed pump is responsible for filling the Boiler Steam drum with water.

What role do the 'FB fans' play in the startup process?

The FB fans (forced draft fans) are activated to provide forced combustion air to the boiler, initiating the combustion process.

What type of fuel is used during the initial combustion process in the boiler?

Initially, oil (fuel oil) is used for combustion in the boiler.

What happens after the initial combustion with oil in the boiler?

After the initial combustion, the turbine is started and the plant enters the next phase of operation.

How is coal introduced into the boiler for combustion?

Coal is supplied to the boiler using a coal feeder and mill, which ensures coal combustion for energy production.

What happens after the boiler is burning coal?

Once the boiler is burning coal, synchronization with the 500-kilovolt electrical grid is performed.

What happens after the synchronization process with the power grid?

After synchronization, the oil supply is turned off, and the boiler runs completely on coal for continued operation.

Why is the system first operated with oil instead of coal?

Oil is used initially for combustion because it is easier to start the boiler with oil, after which the transition to coal is made for efficient long-term operation.