First, a brief description of the functions of each air compressor accessory on the main air source path in the air flow:
I. Oil and gas barrels
Oil and gas barrels have two functions of oil and gas separation and oil storage. The compressed oil and gas mixture is discharged to the oil and gas barrel. The oil can be separated in the oil and gas barrel to separate most of the lubricating oil. The oil and gas barrels store more lubricating oil, so that the newly separated hot oil can immediately participate in the next cycle, which is beneficial to reduce the row. Gas temperature. The oil level tank is equipped with an oil level indicator on the side. There is a filling hole on the barrel for refueling. The oil level of the static lubricating oil should be between the upper limit and the lower limit of the oil level gauge. An oil drain (water) ball valve is installed under the oil and gas tank. The ball valve should be slightly opened before each operation to remove the condensed water in the oil and gas tank. Once oil has flowed out, it closes quickly. Due to the wide cross-sectional area of ​​the oil and gas barrel, the flow rate of the compressed air can be reduced, which is beneficial to the separation of the oil droplets and plays a role in the initial degreasing.
Second, the air filter
The air filter is a dry paper filter, and the filter paper has a pore size of about 5 μm. Its main function is to filter out dust in the air, avoid premature wear of the screw rotor, and prematurely block the oil filter and the oil separator. Usually every 500 hours of work, the dust on the surface should be removed. The method of cleaning is to use low pressure air to blow the dust from the inside out.
Third, the oil and gas separator
The oil separator filter element is made of multi-layer fine special fiber. The mist-like lubricating oil contained in the compressed air can be completely filtered after passing through the oil separator. The oil particle size can be controlled below 0.1μm, and the oil content can be controlled. Less than 3PPM.
Fourth, the intake valve
The intake valve is a disc type intake valve, which mainly controls the air and heavy load by opening and closing the disc in the intake valve; there are two control modes, one type of switch, when the pressure reaches the high limit setting value , close the air inlet, the pressure drops to the low limit setting value, and re-open the air inlet full load operation. Another type of tolerance control, the disc valve micro-closed proportional valve of the intake valve is controlled by the volume control, adapting to the external air consumption, so that the pressure is stable within a certain range, the pressure is not up to the tolerance pressure, and the disc of the intake valve is full. Open, at this time the air compressor is running at full load.
Five, safety valve
When the gas pressure in the oil and gas tank is 1.1 times higher than the rated exhaust pressure, the safety valve will automatically jump and release pressure, so that the pressure drops below the rated exhaust pressure.
Six, after cooler
The compressed air flowing out of the minimum pressure valve leads to the aftercooler. The aftercooler is integrated with the oil cooler and has the same structure, all of which are plate-shaped. The cooling fan draws in cold air and blows it through the cooler. The compressed air temperature after cooling is generally below ambient temperature + 15 °C.
Seven, the minimum pressure valve
Located at the outlet of the oil separator above the oil and gas raft, the opening pressure is set to about 0.45 MPa. The minimum pressure valve has the following functions:
1. When the gas pressure of the oil and gas barrel exceeds 0.4MPa, the air flow rate can be reduced, which can reduce the air flow rate flowing through the oil separator. In addition to ensuring the fine oil separation effect, the oil separator can be protected from the pressure difference. damage.
2. The starting cycle is first established to ensure the lubrication of the machine.
3. Back to function: When the pressure in the oil and gas tank drops after the Sullair air compressor parts are shut down, prevent the compressed air from flowing back.
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Changzhou Puyisen Machinery Technology Co., Ltd. , https://www.pysmachine.com