The air quality at the inlet of the compressor is the guarantee for the safe operation of the compressor. The dust in the air will cause wear, corrosion and scaling inside the equipment, which will shorten the service life of the compressor and cause damage to the equipment's dynamic balance, resulting in unplanned shutdown of the equipment. The compressor receives clean filtered air, which is necessary for its normal operation and reduced maintenance costs. On the inlet system, depending on the air quality requirements of the compressor, while considering the reduction of operating costs, many improvements have been made from design, installation to operation.
Design of the inlet pipe section (1) The inlet pipe from the inlet filter to the compressor must be clean and free from rust. Therefore, stainless steel slotted steel pipe was selected as the inlet pipe. (2) Select the size of the stainless steel tube to minimize the pressure drop. According to the site conditions of the plant and equipment, minimize the length of the entrance and reduce the number of elbows. It is recommended to use the ratio of inlet pipe diameter to compressor inlet pipe diameter: D1/D2 ≥ 2 (the value of our factory is 2). The inlet pipe of the press is recommended to be connected to the inlet flange of the compressor by a large and small pipe fitting. The length L1 of the pipe is selected according to the standard. The long-length elbow is used, and the length of the straight pipe between the elbow and the flange of the large and small pipe fittings is L2, L2/D1≥4 (the value of our factory is 4).
(3) In view of the damage of the inlet filter in some enterprises, it is sucked into the compressor, causing damage to the first-stage impeller of the compressor. Five 40-mesh stainless steel strainers are added between the head and the flange connected to the pipeline as the compressor. Protective net at the entrance.
(4) A condensate valve is added at the low point of the horizontal piping. The inlet filter should be placed outside the compressor building, at least 4m above the ground, at least 2m from the wall or roof. Because of this size, the air flow carries a high concentration zone of dust. The imported filter (H13) is expensive and is more than ten times the domestic price.
The Manual Air Valve and air flow control valve, ventilation is civil building industrial building, central air-conditioning terminal indispensable accessories for air conditioning and air purification engineering, generally used in air conditioning, ventilation pipe system, used to adjust the tube of the air flow, can also be used for mixing of fresh air and return air conditioning
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