Two Stage Compressors

1.The new generation of imported host optimizing bearing design and reducing single-stage compression ratio and improving volumetric efficiency.

2.SKF bearing and high efficiency.

3.All copper coil ensures stable operation.

4.High temperature resistance and high pressure resistance.

5.Elegant appeaance.

6.Vertical design.

Working process of twin screw compressor

The working process of the two stage compressors: the motor drives the main rotor through the coupling, speed-increasing gear or belt. Because the two rotors mesh with each other, the main rotor directly drives the auxiliary rotor to rotate together. Under the action of relative negative pressure, air is sucked in. When the tooth crest and the tooth groove work together, the gas is transported and compressed. When the rotor meshing surface turns to communicate with the exhaust port of the casing, the compressed gas begins to be discharged.

The working process of the worm compressor: the motor transmits the power to the worm shaft through a coupling or a belt, and the worm drives the star gear teeth to move relatively in the worm groove. The volume of the closed element changes, and the gas and conveying are compressed. When the design is reached The pressure value is discharged from the symmetrical triangular exhaust ports on the left and right sides of the main body shell to the oil and gas separator.

The main body of the two stage compressors has oil injection holes. With its own pressure difference, the oil is injected into the compression chamber during the compression process to cool the gas, seal the gaps of various parts, and play a role in absorbing vibration, silencing and lubricating The role of.

1. Pressure regulator setting of air compressor

The unloading pressure is adjusted with the upper adjusting bolt. Turn the bolt clockwise to increase the unloading pressure, and turn counterclockwise to reduce the unloading pressure.

Second, the air filter

The dust in the sucked air is blocked in the filter to avoid premature wear of the two stage compressors and blockage of the oil separator. Usually after 1000 hours of operation or one year, the filter element should be replaced. In dusty areas, the replacement interval should be shortened. . When the filter is repaired, it must be shut down to reduce the parking time. It is recommended to replace it with a new or cleaned spare filter element.

The steps to clean the filter element are as follows:

1. Tap the two ends of the filter element in turn against a flat surface to dry the dust with most of the weight.

2. Use dry air less than 0.28MPa to blow in the direction opposite to the inhaled air. The nozzle is less than 25 mm away from the folded paper, and blow up and down along its length.

3. If there is grease on the filter element, it should be washed in warm water with non-foaming detergent. Soak the filter element in this warm water for at least 15 minutes and wash it with clean water in a hose. Do not use heating to accelerate drying. One filter element Can be washed 5 times and then discarded.

4. Put a light in the filter element for inspection. If it is found to be thin, pinholes or damaged places should be discarded.

Three, cooler

The inner and outer surfaces of the cooler pipe must be kept clean. Otherwise, the cooling effect will be reduced. The working conditions should be cleaned regularly.

Four, gas storage tank / oil and gas separator

The gas storage tank/oil-air separator is manufactured and inspected according to the pressure vessel standard, and is not arbitrarily modified.

Five, safety valve

The safety valve installed on the gas storage tank/oil-air separator should be inspected at least once a year. The adjustment of the safety valve must be carried out by a professional person. The lever must be loosened at least once every three months to make the valve open and close once to ensure the safety valve Can work normally.

The inspection steps are as follows:

1. Close the air supply valve;

2. Connect the water source;

3. Start the unit;

4. Observe the working pressure and slowly turn the pressure regulator adjusting bolt clockwise. When the pressure reaches the specified value, the safety valve has not been opened or has been opened before reaching the specified value.

Open, you must adjust it.

The adjustment steps are as follows:

1. Remove the cap and lead seal;

2. If the valve is opened too early, loosen the lock nut and tighten the positioning bolt by half a turn. If the valve is opened too late, loosen the lock nut about one turn and loosen the positioning bolt by half a turn.

3. Repeat the test steps, if the safety valve still cannot be opened when the pressure value is specified, adjust it again.

Six, digital thermometer experiment

The inspection method of digital thermometer is to put its thermocouple in the oil bath together with a reliable thermometer. If the temperature deviation is greater than or equal to ±5%, the thermometer should be replaced.

Seven, motor overload relay

Under normal conditions of the relay, the contact should be closed. When the current exceeds the rated value, it will open to cut off the power of the motor.

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