Technical measures for anti accident of the hottes

2022-08-06
  • Detail

Technical measures for anti accident of fan tower inversion

1 strictly control the quality of design, manufacturing and construction

1.1 the basic design of fan and the design of tower barrel shall meet the requirements of fan load, with sufficient margin (it shall meet the requirements of maximum operating conditions under despicable climate)

1.2 the fan is basically poured according to the appropriate industry quality standards

1.3 the raw materials shall be well controlled in the tower manufacturing, and the quality inspection shall be stopped according to the requirement that the raw materials of PP packing belt are recyclable materials

1.4 during the manufacturing process of tower drum, the process standards for plate rolling and welding are appropriate, and the quality inspection is appropriate to the design requirements

1.5 the unevenness of the basic ring device shall be less than 1mm

1.6 flange unevenness shall be less than 1mm, parallelism shall be less than 1mm, and unevenness shall be less than parallelism

1.7 before the tower drum is sprayed, it should be roughly cleaned, but it should be sprayed later. The spraying process should meet the quality standard (three times), and the coating thickness should not be less than 0.75mm

1.8 during the tower manufacturing and fundamental pouring process, the main engine manufacturer and supervision personnel shall supervise the process

2 strictly control tower transportation

1 experienced transportation units shall be selected for tower transportation. Tower hoisting, loading and unloading shall be prevented from collision. Transportation and building a storage fulcrum for aramid industrial cluster shall be reasonable

2 during transportation, the basic ring and tower shall be firmly installed on the vehicle (the vehicle shall be provided with a clamping point or a guide chain), and the tail end of the equipment shall be provided with warning signs to prevent collision

3 in case of bad road conditions during transportation, reduce the speed to avoid shaking

4 after the unloading of the tower, the professional staff, the manufacturer and the supervisor shall jointly check the external appearance of the tower. If there is any difference, the experimental data will be displayed on the display screen, especially if there is a depression at the fulcrum. If there is a depression, it must be returned to the manufacturer

5 when hoisting the tower, the professional staff, the manufacturer and the supervisor shall jointly check the external appearance of the tower, especially whether there is a depression at the fulcrum. If there is a depression, it must be returned to the manufacturer

3 strictly control the protection of normal operation

3.1 the operation staff shall regularly listen to and record the local climate forecast, and prepare the contingency plans and Countermeasures for the safe operation of the wind farm. The next day after the new year's Eve, stop checking all the indecency outside the wind turbine tower

3.2 stop patrolling the outer walls of all fans every Saturday, check whether there is deformation in the tower and whether there is crack in the welds of the tower, and stop the machine according to the wind speed and direction

3.3 in the process of monthly inspection, check the tower drum for deformation, paint flakes and rusty environment, take photos and record the facts, and stop comparison

3.4 during the monthly inspection, it is found that the low carbon steel connected to the tower flange: the sample is gradually flattened with cracks, the bolts are missing and loose, and the welds are cracked. The machine is shut down according to the wind speed and direction

3.5 check the fan every year, and stop the bolt torque at the tower drum connection and the tower bottom fundamental ring connection in strict accordance with the standard (to prevent the bolt decadence caused by torque)

3.6 if there is an environment with scattered and rusty exterior paint, professional staff shall be requested to take anti-corrosion measures for the tower on schedule

3.7 stop monitoring the fundamental settlement and perpendicularity of the fan every year. If it exceeds the standard, stop the Enron evaluation

3.8 for the fan in operation, when the 10 minute uniform wind speed exceeds the additional cut-out wind speed, but the fan is not cut out, it should yaw 90 degrees first, then stop manually, and start after the wind speed drops

3.9 when the instantaneous wind speed of the fan in operation exceeds 35m/s, it shall yaw for 90 degrees first, then stop manually, and start after the wind speed drops

3.10 when the wind is strong, the staff on duty shall stop monitoring the vibration value of the fan. If it exceeds the range, they shall check it on board

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