Boiler measurement points

I don’t understand what it means. Does it refer to measuring the external dimensions of the boiler? Still boiler parameters? What else?

I guess what the original poster means is the sensors used to monitor the pressure and temperature of the boiler; waiting for answers from other experts

Does it mean the location of the measurement point? Should we still measure those parameters? Measurement parameters: 1. Pressure 2. Temperature 3. Water level 4. Oxygen content 5. Current of rotating equipment 6. Flow rate

Main steam pressure, main steam temperature, feedwater temperature, feedwater pressure, reheat temperature, reheat pressure, furnace negative pressure, flue gas temperature, furnace oxygen level, wall temperature of the heating surfaces,……

Measurement of parameters such as pressure, pressure difference, temperature, oxygen content, water level, flow rate, etc., on the air side and the steam side.

The main temperature measurement points on the boiler are: (1) Feedwater system: feedwater temperature, whose level indicates whether the regenerative heater is functioning properly and affects the thermal efficiency, which in turn influences the plant’s cycle efficiency. (2) Main steam system: Superheater outlet steam temperature; it is monitored to keep the steam temperature at the specified value ； Monitoring the steam temperature at the exit of the desuperheater is important for two reasons: first, to prevent this steam temperature from becoming too high, thereby ensuring that the wall temperatures of the superheater tubes in the high-temperature section do not rise excessively. It can also control the superheater outlet temperature. Secondly, this temperature can be used as a leading signal for steam temperature regulation. (3) Flue gas and air system: The wind temperature at the outlet of the air preheater; monitoring this value can indicate the operating efficiency of the air preheater ； Flue gas temperature is an important parameter that affects the economic efficiency and safety of boiler operation. Because its level will directly affect the magnitude of smoke exhaust losses, as well as whether low-temperature corrosion and secondary combustion will occur in the heating surfaces at the rear of the boiler ； The temperature in the high-temperature section of the superheater can be monitored to assess the combustion conditions in the furnace, such as issues like coking or flame deviation. The flue gas temperature in the low-temperature section of the superheater can be monitored to determine the degree of ash accumulation in the superheater.

There are standard specifications for pots as well as high-heat and low-heat specifications; the low-heat specifications specify the minimum number of measurement points, while the exact number of other measurement points varies from manufacturer to manufacturer

For a newly designed furnace type, it is advisable to install more smoke temperature and wind pressure measurement points to collect data and prepare for improvements.

Measurement points on the furnace body: air pressure and flow rate at the blower outlet, air temperature; air temperature at the exit of the air preheater; negative pressure in the furnace chamber; gas pressure and temperature at the furnace chamber outlet; furnace temperature; smoke temperature and pressure at the inlet of the economizer, as well as smoke temperature and pressure at the outlet of the economizer; smoke temperature and pressure at the exit of the air preheater; drum pressure; drum level; flow rate and pressure of the boiler feedwater; temperatures before and after the desuperheater, etc

I don’t understand. The measurement points include: dimension measurements, pressure measurement points, temperature measurement points, thermal measurement points, environmental protection measurement points, etc. Which one do you need? This post was last edited by zjy_007 on 2009-4-29 11:43.]