Air compressor, also known as air compressor. The air compressor is the basic product of industrial modernization. It is often said that the electrical and automation have the meaning of full pneumatic; and the air compressor is to provide air source power, and it is the main body of the electromechanical air source device, the core equipment of the pneumatic system. It is a device that converts the mechanical energy of the prime mover (usually an electric motor) into gas pressure energy, and is a device for generating compressed air. . The main structure of the air compressor 1. Compression mechanism part: cylinder, piston, intake and exhaust valve and other components. There are four valve holes on the cylinder block and cylinder head, two pieces and two groups 2. Transmission mechanism part: It consists of pulley, crankshaft, connecting rod, crosshead, etc. Through the transmission mechanism, the rotary motion transmitted by the motor becomes a reciprocating linear motion. 3. Sealing part: The primary and secondary cylinder seals are respectively composed of a set of packings. The sealing ring and the piston rod are clamped and sealed by the preload of the extension spring and the gas pressure. 4. Lubrication system: The lubrication system of the transmission mechanism consists of an oil pump, a filter, an oil filter and a pressure gauge. 5. Cooling part: It consists of cooling water pipe, intermediate cooler and after cooler. The cooling water enters the intercooler from the main water inlet pipe for cooling, and after being discharged, the cooling water enters the water chambers of the first and second stage cylinders, respectively. 6. Pressure reducing valve and pressure control system: The pressure reducing valve and pressure control system control the compressor discharge pressure to operate within a predetermined operating range. When the pressure in the storage tank exceeds the specified value, the compressor stops suction and makes the compressor run without load to reduce power consumption. When the unloading valve is balanced, the opening and closing of the valve is used to control the intake or stop the intake. There is a small piston in the lower part, and the small piston cavity is connected with the solenoid valve and the over-considered pressure reducing valve. The small piston chamber is at atmospheric pressure. When the pressure of the gas storage tank exceeds the rated value, the pressure control system operates (the solenoid valve is connected to the intake air), the gas enters the small piston cavity, pushes the piston to press the spring, closes the valve, stops the intake air and the pressure control system after the pressure drops. Unified operation (the solenoid valve air inlet is disconnected), the pressure reducing valve is automatically opened, and the compressor enters the normal operation state. 7. Safety protection part: It consists of safety valve and electrical protection respectively. When the discharge pressure exceeds the specified value, the safety valve opens automatically. The safety valve is divided into first-level or second-level safety valve, and the opening pressure of the first-level safety valve is 0.24~0.3Mpa. Control of Air Compressor Noise It mainly adopts three aspects: muffler, muffler tunnel and sound insulation technology Install the muffler. The main noise source is the intake and exhaust ports, and appropriate intake and exhaust mufflers should be selected. The frequency spectrum of the intake noise of the air compressor is characterized by low frequency, and the intake muffler should choose a resistance structure or an impedance composite structure mainly based on individual and resistance. The exhaust air pressure of the air compressor is large and the airflow velocity is high, so a small hole muffler should be used at the exhaust port of the air compressor. Set up muffler tunnels. The underground or semi-underground tunnel of the silencing tunnel, the tunnel wall is made of bricks with good sound absorption. Connect the intake pipe of the air compressor to the muffler tunnel, so that the air enters the air compressor through the muffler tunnel. The use of muffler tunnels can greatly reduce the intake noise of the air compressor, and the service life is longer than that of ordinary mufflers. The sound insulation technology is to build a sound insulation cover. After installing mufflers or setting muffler tunnels at the inlet and exhaust ports of the air compressor, the airflow noise can be reduced to below 80db (a), but the mechanical noise and motor noise of the air compressor are still very high, so it should be Install a soundproof cover on the unit of the machine. Cordline Switches,Electrical Switch,Rocker Switch,Foot Switch,on off switches Jiangmen Krealux Electrical Appliances Co.,Ltd. , https://www.krealux-online.com