What is a warm pipe? What is the purpose of heating pipes?

Objective: By slow heating, the pipeline and its accessories (valves and flanges) will be heated evenly, so as to prevent large temperature difference stress, drain the hydrophobic water in the pipeline smoothly and prevent water impact.

1. According to the classification of pressure grade, the steam boiler used by our company belongs to medium pressure boiler.

2. The three indispensable safety accessories on the steam boiler are pressure gauge, water level gauge and safety valve.

3. The three modes of heat transfer are convection, radiation and heat transfer.

4, circulating fluidized bed boiler, oil gun ignition before atomization test should be done.

5. The model of circulating fluidized bed boiler currently used by our company is TG-65/1.6-m. ..

6. There are three kinds of dust collectors used in boilers in our company: bag dust collectors, electrostatic dust collectors and multi-tube dust collectors.

7. Boiler blowdown is divided into continuous (surface) blowdown and regular blowdown.

8. Boiler debugging is divided into cold debugging and hot debugging.

9, furnace coking accident is a common combustion accident of circulating fluidized bed boiler, furnace coking is divided into low temperature coking and high temperature coking.

10, the bed pressure drop reflects the size of the material in the furnace.

1 1. When the circulating fluidized bed boiler starts running, its primary air volume shall not be lower than the minimum fluidized air volume to prevent coking accidents.

12, special operations operators must obtain a national unified format of special operations qualification certificate before taking up their posts.

13, when the boiler regularly drains, the time for each group to fully open the drain valve should not exceed 30s.

14. The external supply temperature of high-temperature heat transfer oil is 250 2℃, and that of low-temperature heat transfer oil is180 2℃.

15, circulating fluidized bed boiler bed temperature is too high, easy to coke, bed temperature is too low, easy to put out the fire.

16, the three elements of combustion refer to combustible, oxygen and ignition point, all of which are indispensable.

17, boiler startup is divided into cold startup and hot startup.

18, boiler air leakage test is generally divided into positive pressure method and negative pressure method.

19, when the water wall bursts, the feed water flow rate is abnormally higher than the steam flow rate, the drum water level drops, and the bed temperature, dense phase zone and dilute phase zone drop.

20. Three-level safety education specifically refers to safety education at factory level, workshop level and team level.