Why can t the source port of the thermocouple of the power plant boiler body be installed near the m

1. The water wall near the population gate is dense, and the density is because the manhole door is bent, and there is no place to release heat couples;

2. There is a possibility of air leakage near the manhole door, and the temperature measurement is not accurate.

1. The boiler body, feed water, main steam, sewage discharge, drainage, sampling, dosing and other systems are installed, tested and insulated.

2. After the installation of the boiler expansion display, the zero position should be calibrated.

3. The water supply and desuperheating water pipelines are flushed and restored.

4. The boiler cold state test is completed.

5. All thermal instruments and electrical instruments of the boiler have been inspected and qualified, and the installation and commissioning have been completed, indicating that they can be put into operation at any time.

6. Each operation post has reliable communication and lighting.

7. All scaffolding is removed, sundries are cleaned up, the railings of the boiler ladder platform are complete, and the holes are covered.

8. All steam cut-off doors, thermal instruments, electrical instruments, and cables are listed, and the damper indicates the switch direction.

9. The adjustment and debugging of the electric door, water supply and desuperheating water door are completed, and the performance test of the water supply and desuperheating water adjustment door is completed.

10. The water level of each water level gauge is clear, the position is correct, and the lighting is good.

11. Check the tightness of each damper baffle.

12. The safety door is dismantled for inspection, grinding, and the test is qualified.

13. The buttons, interlocks, linkage tests, protective action tests and lights, sounds, signals and alarm devices of each rotating machinery are reliable and reliable.

14. The boiler operators have passed the operation regulations and safety regulations and passed the examination. Equipped with maintenance personnel.

15. The installation of the main steam pipeline purging temporary pipe is completed.

16. Set up a 72-hour assessment leading group, and have a clear division of labor, arrange on-duty personnel on duty, and coordinate the work.

17. Industrial water and fire water systems should be in a state of input.

18. The safe passage is unimpeded.

Generally, during the operation of the boiler, there are large stones in the positive pressure zone of the furnace (such as circulating fluidized bed boiler), which is mainly for heat insulation and wear prevention. Although there is still an insulation layer at the manhole door, it will be very troublesome to repair, and it is easy to replace the large stone at the door if it is worn out.

Prevent the dead material at the manhole from coking here, which is not conducive to the next door opening and protect the furnace door.

There may be other uses, but not related to boiler operation. You can ask the boiler overhaul class.

Yes, I haven't seen it, maybe your long door is not closed tightly, there are usually things that are fastened, and there are no things to do.