Common faults and maintenance of air compressor

Common faults and maintenance of air compressor Common faults and maintenance of air compressor    Air compressors are widely used in various industries with the development of technology, but no matter what type of air compressor, there will be some problems in the process of use. The following editors will now introduce some common faults and maintenance methods, let's take a look.    Method: 1. The air compressor is still working, but the air supply is insufficient. The air compressor works under a certain pressure and stops the air tank.    Use your ears to listen to the air leaks in the pipes outside the compressor, the air supply line of the compressor above the air storage tank, check valves, safety valves, pressure switches, etc. If the above problems are eliminated, the scalp bowl may be worn or the rated flow rate is exceeded, and the machine is overloaded. As for the damage of the leather cup, the leather cup must be replaced, and the life of the ordinary leather cup is about 3 years.    2. The air compressor works intermittently, and the air supply is insufficient.    This failure is caused by insufficient voltage. There was a buzzing sound. For example, the running current at this time is too large. The minimum operating voltage without oil head is 200 volts, it is difficult to start at this voltage. Frequent activation will cause the head temperature to rise. Eventually short circuit shutdown. When it is turned on again, it should wait for his temperature to drop before turning on. For areas where voltage fluctuations often occur, it is recommended to install automatic voltage stabilizers.    3. Starting capacitor leakage.    When leakage occurs, the compression head can also be started, but the speed is slow and the current is large. Due to the high current, the machine head heats up, and the machine head will soon be turned off. This problem can be changed to a new one, but we should pay attention to the same number of ultrafiltration membranes, which are too large or too small.   Each time the air compressor works, the air pressure of the air tank must be reduced to zero pressure before starting. Otherwise, it will not start. When the power is turned on, you can see that the magnetic head rotates slowly, and there is also a buzzing sound. The current is also large.    This is because the check valve is blocked, its position is connected to the water outlet pipe (or high pressure pipe), and the other end is connected to the gas storage tank, which has three outlets. Its function is to let the gas discharged by the engine only enter the air tank, but the gas in the air storage tank cannot come out. Inside is a spring and a film. If dirt adheres to the film, it will cause reverse leakage. Use the handle to open the bonnet behind the check valve. Please clean it and put it back as it is.    4. The air compressor can work, but the noise is obviously greater than the original noise. This phenomenon checks whether the running current of the loose parts on the machine is normal after disassembly. If it is normal, the machine is usually used for several years. The oil-free air compressor should be placed away from the place where dust is flying. Unplug the power regularly and use high-pressure air to blow out the dust and two fan blades on the surface. The noise is too large because the four The bearings are worn by dust, so the leather cup will also be affected. It is enough to replace the tools and accessories that require a special oil-free air compressor. Air compressor safety matters   The operation of the air compressor system is very safe. Danger rarely occurs, but in very rare cases it can be dangerous due to human error. In order to reduce the possibility of human error, the following safety issues must be kept in mind:    ① Read the operating instructions carefully. By carefully reading the user operation manual provided by the manufacturer, you can understand the working conditions of the compressor components.    ② Before starting the machine each time, you should carefully check the external status of the pipelines, connectors, various control parts and the entire system, and it is prohibited to use it when there is a problem.    ③ Use a suitable power outlet. Using improperly grounded sockets can cause damage to electrical parts. You must use a well-grounded three-pin socket.    ④ Always ensure that the surface of the compressor is dry when working. The compressor should be placed in a place with dry and clean flowing air. Avoid dust, dirt and diffuse paint mist splashing on the surface of the compressor.    ⑤ Most compressors can be turned on and off automatically, and the power must be cut off when the equipment is repaired.   ⑥Be careful not to touch the working parts with your hands. High-speed rotating parts can hurt the human body. When the compressor is working, the handle should be removed. Do not wear large clothes to avoid being caught by the rotating machinery. Unplug the power plug before servicing the compressor.   ⑦ Do not remove the protective cover of the transmission belt to ensure the reliable connection of other safety protection devices, and pay attention to keeping them in good working condition. Remember that the temperature of the compressor is extremely high when it is working, and do not touch the body.   ⑧ Be careful when releasing high-pressure gas. Use an air pressure regulator to reduce the air pressure. High-speed airflow will blow up dust and other foreign objects.   ⑨ Avoid knotting of the gas pipe, and be careful not to let the gas pipe, power cord and external wiring touch sharp objects, spilled chemicals, oil and wet ground. All of this can lead to danger.   ⑩When removing the pressure of the gas storage tank, moving the gas pipe or replacing the pneumatic tool, make sure that the reading value of the pressure gauge is zero. Note: Do not release the high-pressure gas too fast, otherwise it will cause danger.

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