Intelligent control motor regular grease injection device and control method for intelligently controlling grease injection device by motor

Abstract

The invention belongs to the technical field of nuclear power station electrical maintenance, and particularly relates to an intelligent control motor regular grease injection device and a control method for intelligently controlling a grease injection device by a motor. The grease injection device comprises a grease storage box, a plunger pump, an electromagnetic valve, a grease injection pipeline, a grease injection hose, a motor grease adding hole, a grease injection control cabinet, a power supply and a motor start-stop signal, the grease storage box is connected with one end of the plunger pump, the other end of the plunger pump is connected with the grease injection pipeline, and an electromagnetic valve is arranged on the grease injection pipeline; the grease injection pipeline is connected to the motor grease adding hole through the grease injection hose; the plunger pump and the electromagnetic valve are connected with the grease injection control cabinet, the grease injectioncontrol cabinet is connected with the power supply, and meanwhile, the input end of the grease injection control cabinet receives the motor start-stop signal. According to the intelligent control motor regular grease injection device and the control method for intelligently controlling the grease injection device by the motor, the operation reliability of the motor can be improved, the manpower consumption is reduced, the personal safety is protected, the grease injection time is grasped more accurately, and the service life of a motor bearing is prolonged.

Description

technical field [0001] The invention belongs to the technical field of electrical maintenance of nuclear power plants, and in particular relates to an intelligent control motor periodic grease injection device and a control method. Background technique [0002] The unsealed motor bearings of units 1 and 2 of a nuclear power plant are lubricated manually on a regular basis. [0003] Current situation of motor grease injection problems: [0004] 1. At present, Units 1 and 2 use the method of manually filling new grease with regular oil guns, which is time-consuming and laborious. At the same time, in most cases, oil replenishment is performed during the operation of the motor, which greatly increases the risk of personnel operation; [0005] 2. The grease parameters used by different types of motors are different. Due to the large number of motors in power plants, it is very easy to misuse the wrong grease, resulting in reduced or damaged motor bearing life; [0006] 3. Afte...

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Problems solved by technology

[0004] 1. At present, Units 1 and 2 use the method of manually filling new grease with regular oil guns, which is time-consuming and laborious. At the same time, in most cases, oil replenishment is performed during the operation of the motor, which greatly increases the risk of personnel operation;

[0005] 2. The grease parameters used by different types of motors are different. Due to the large number of motors in power plants, it is very easy to misuse the wrong grease, resulting in reduced or damaged motor bearing life;

[0006] 3. After the staff use the oil gun, it is easy to happen that the cleaning is not in place, so that there is dirt in the oil nozzle, which affects the normal service life of the bearing;

[0007] 4. At present, the manual oil gun is used to fill new grease regularly, and the grease injection cycle is not determined according to the actual operating conditions of the motor, resulting in too much or too little grease, and the protection effect on the bearing is greatly reduced.

[0008] 5. Some motors in the power station are located in high-radiation areas, and there is a great radiation risk for people entering during operation

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