Rotary Screw Air Compressor With Dryer

1.Famous compression element ensures the high performance and large air delivery.

2.Powerful engine helps to improve the reliability and reduce the fuel consumption.

3.HIgh efficiency and energy saving filters ensure longer working life and save the maintenance cost.

4.Damped chassis and wear resistant type.

The screw-type single-stage compression air compressor consists of a pair of male and female rotors (or screw) that are toothed parallel to each other, which rotates in the cylinder, so that the air between the rotor teeth continuously produces periodic volume changes, and the air follows The rotor axis is conveyed from the suction side to the output side, realizing the whole process of suction, compression and exhaust of the rotary screw air compressor with dryer. The air inlet and the air outlet of the air compressor are respectively located at both ends of the housing, and the slots of the female rotor and the teeth of the male rotor are driven to rotate by the main motor.

Piston type: The compressor is directly driven by the electric motor, which causes the crankshaft to rotate, and drives the connecting rod to cause the piston to reciprocate, which causes the cylinder volume to change. Due to the change of the pressure in the cylinder, the air enters the cylinder through the air filter (muffler) through the intake valve. During the compression stroke, due to the reduction of the cylinder volume, the compressed air passes through the exhaust valve and passes through the exhaust pipe. The valve (check valve) enters the gas storage tank, and when the exhaust pressure reaches the rated pressure of 0.7MPa, the pressure

The switch is controlled and automatically shut down. When the pressure of the gas storage tank drops to 0.5-0.6MPa, the pressure switch is automatically connected and activated.

Compressor Lubricant

Rotary vane compressor

Each type of compressor has different requirements for lubricating oil. The lubricating oil function of the rotary vane compressor is to lubricate the blades that slide in and out during the compression process. Lubricating oil is also used as a sealant between the blade and the frame, making gas compression possible. Usually ISO 68-150 products meet the viscosity requirements of rotary vane compressors.

Reciprocating compressor

Reciprocating compressors provide a large outflow pressure capacity ranging from 1 barg to 1000 barg. The oil-lubricated cylinders, crankcase parts, coils, pistons, valves and loading rods of reciprocating compressors. The crankcase components include cross head bearings, cross joints, cross head guides and crank pins. Recent refrigeration applications have shown that ISO 15 lubricants with an operating viscosity of less than 10 cSt can provide suitable lubrication. However, depending on gas molecular weight and flow pressure operation, processing and classic use of hydrocarbon gas reciprocating compressors are ISO 68-680 products.

In most reciprocating compressors, a fluid is used as a lubricant for all components. Smaller reciprocating compressors use splash lubricants. Larger installations usually use an oil pump system to lubricate the upper crankcase components. Some large equipment uses two different lubricants, one for the cylinder and the other for other parts that need to be lubricated. Since the cylinder lubricating oil must coexist with the gas, it must be compatible with the downward flow process. Cylinder lubricating oil can be designed to provide lubrication for special gas or operating conditions.

Screw compressor

Filled rotary screw air compressor with dryer usually use compressed hydrocarbons and production gases, and the flow pressure ranges from 1-25 barg. They have many advantages, including improved compression efficiency, low outflow temperature, high reliability and less maintenance due to simple mechanical construction. Spiral gas compressors must have several functions. They lubricate the bearings, provide adequate sealing between the screw and the frame, remove heat during compression, flush out any particles in the compressor, and protect the system from corrosion. The lower viscosity limit is 10-20cSt at the oil supply temperature to the bearing and 5cSt at the outflow condition to ensure proper sealing. The viscosity of the upper lubricating oil depends on the ability to provide enough lubricating oil for the bearing. The typical upper viscosity limit is 0-100 cSt. Usually ISO 68-220 lubricants meet the viscosity requirements of rotary screw air compressor with dryer. The exact viscosity grade depends on the operating conditions and air flow composition.

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