Power plant boiler damper drive torque detection device

Abstract

The invention relates to the field of power station boiler air door driver detection, in particular to a power station boiler air door driver detecting method and a torque detecting device. The power station boiler air door driver detecting method comprises the step of connecting a torque output shaft of an air door driver and the torque detecting device, and the step of opening a drive control point detecting switch of the air door driver, observing a torque value output by the air door driver, carrying out judgment according to the torque value and replacing or maintaining the faulted air door driver. The movable torque detecting device of the power station boiler air door driver is composed of a torque detecting mechanism and a movable trolley. Whether the air door driver works normally or not is judged by detecting the torque output by the air door driver, the torque detecting device can be used on site to help a worker to know the working state of the air door driver and provide data fast, the labor intensity of the worker is reasonably relieved, unnecessary economic losses caused when a power plant generator set is maintained are effectively reduced, and fault removal time is shortened.

Description

technical field [0001] The invention relates to the field of power plant boiler air door driver detection, in particular to a power plant boiler air door driver detection device. Background technique [0002] The power plant boiler damper driver is a device that adjusts the opening of the baffle installed in the air duct, and is widely used in power plants. The power plant boiler damper driver can realize the air volume adjustment required by each system in the boiler combustion. In the process of boiler combustion, air volume adjustment is an important parameter. The poor matching of air volume and coal volume will directly affect the economy of boiler combustion; if the air volume is not well adjusted in the furnace, it will also lead to safety accidents of boiler flameout or explosion. Therefore, power plant boilers The damper driver is required to be accurate and reliable in the field work. [0003] Existing damper driver installations such as figure 1 As shown, the d...

AI Technical Summary

Problems solved by technology

In the actual work process of the power plant boiler damper driver, it will fail to meet the working requirements due to various factors. For example, the damper driver 1 in the power plant boiler furnace air pressure control system has experienced improper use of the torque range. 4. The opening is too large, causing the current of the fan to be too large when starting, and the air volume is too large to meet the requirements, so the problem of rework and maintenance; The torque output is small, the opening of the baffle 4 is too small, and the air volume is small

[0004] Air volume control is very important for boiler combustion. At present, the routine maintenance of the damper driver of the power plant boiler cannot detect the driving torque, so only the driving opening is detected.

The normal opening detection does not mean that the actual driving torque of the boiler damper driver is normal. The abnormal torque force will lead to abnormal air volume control after being loaded. Therefore, because the maintenance personnel do not have the necessary detection means, the abnormal fault of the boiler damper driver in the power plant cannot be repaired. Preventive avoidance; when the boiler air volume control is abnormal, judgment data cannot be provided to quickly determine whether it is caused by abnormal torque of the boiler damper driver or an internal baffle failure. Frequent misjudgments lead to the need to stop the equipment in the entire area to enter the air duct for inspection during maintenance, and expand The range of troubleshooting is limited; the damper driver of the power plant boiler is a large-scale driving device with a weight of nearly 500 kg, and it is mostly installed downstream of the air duct. It also wastes precious time to eliminate the fault, which affects the normal power generation of the generator set

Therefore, how to overcome the power plant boiler damper drivers installed scatteredly in various areas of the site, currently there is no direct means of judgment during maintenance and troubleshooting, and problems such as long troubleshooting time are urgently needed to take countermeasures to ensure that the power plant boiler damper drivers are normal when they are put into use, and power generation Air volume during normal operation of the unit

Images