Circulation in a boiler system refers to the continuous flow of water or steam within the boiler circuit. This process is crucial for transferring heat efficiently from the combustion gases to the water or steam, ensuring that the boiler operates safely, efficiently, and effectively. As an expert in the field, ZOZEN Boiler emphasizes the importance of proper circulation for maintaining boiler performance, extending equipment lifespan, and achieving operational reliability. Let's delve into the k...
When a Circulating Fluidized Bed (CFB) boiler encounters a cyclone separator breakdown, it's important to address the issue promptly and effectively to maintain the boiler's efficiency and safety. Here are steps that should be taken:
Immediate Shutdown: First and foremost, shut down the boiler following the standard shutdown procedures. This is crucial to prevent any further damage to the boiler and to ensure safety.
Inspection and Diagnosis: Once the boiler is safely shut down, conduct a thor...
Question details (performance):Fail ignite, normal pressure, has electricity.Answer: Fault reason:1. The ignition transformer is burnt out.2. The high-voltage wire is damaged or detached.3. The clearance is too large or too small, and the relative size of the ignition rod position is wrong.4. Electrode rupture or grounded short circuit.5. Improper spacing. Troubleshooting:1. Replace with a new one.2. Reinstall or replace.3. Readjustment.
The term “boiler efficiency” is often substituted for thermal efficiency or fuel-to-steam efficiency. When the term “boiler efficiency” is used, it is important to know which type of efficiency is being represented. Why? Because thermal efficiency, which does not account for radiation and convection losses, is not an indication of the true boiler efficiency. Fuelto-steam efficiency, which does account for radiation and convection losses, is a true indication of overall boiler efficiency. The term “boiler efficiency” should be defined by the boiler manufacturer before it is used in any economic evaluation.
Boilers with low water volumes require a minimum flow requirement to prevent localized boiling and subsequent heat exchanger damage in a low to zero water flow situation. Minimum flow requirement varies by boiler design. Regardless if a boiler itself has a minimum flow requirement, every hydronic heating system needs to be designed to carry the energy being created away from the boiler to avoid high temperature shut down.
The action of starting up a fire tube boiler for the first time is already a cold start. As a result, the mechanical load in this type of boiler is much greater, as the main characteristic of cold starts is the absence of boiling water and greater stress on the connection and anchorage elements of the boiler.
To make this start a bit easier for the boiler, the boiler operator should reduce the burner load to a boiling point.
Steam carries about 540 Kcal/kg of useful energy whereas hot water and thermal fluid carry much less energy. Steam does not require a pump to transfer the energy. Generally, if the heating temperatures required are <100°C, then hot water can be used and if temperatures >180°C are needed then thermal fluid might be a better choice. For process temperatures between 100°C and 180°C steam is considered a viable option.
1. Primary air fan: after being heated by the air pre-heater, primary air enters into the wind chamber, then into the furnace through wind caps through the air distributor to fluidize particulate materials;2. Secondary air fan: after being heated by the air pre-heater, secondary air enters into the furnace through the secondary air ducts for complete combustion of fuels; the seal air, conveying air and fuel spreading air of the feeding device also adopt secondary air; 3. Circ...
