Talking about the Treatment of Oil Leakage of PAP PLUS Series Centrifugal Air Compressor

The miscellaneous air compressor in Guiye Power Plant is a device that supplies common compressed air to the whole plant, that is, supplies air to equipment such as pneumatic equipment and equipment cleaning and fuel nozzles. With the expansion of the production scale of the factory, the demand for miscellaneous winds has increased. The capacity of the original three reciprocating air compressors in the power center 1 power center section is far from satisfactory. After sufficient demonstration, three units have been installed. JOYC -8 series and two PAPPLUS series centrifugal air compressors. Due to the continuous operation of the air compressor for a long time, combined with the aging phenomenon of the sealing components and the design defects, the PAPPLUS series air compressor (7 miscellaneous) large gear shaft seal, the gear box base and other places have oil leakage. It not only causes waste of lubricating oil and pollution of the on-site environment, but also poses certain safety hazards to the operation of the equipment.

2PAPPLUS series centrifugal air compressor sealing method and oil leakage analysis PAPPLUS series centrifugal air compressor large gear coupling side oil seal is a split rubber shaft seal. Due to the long-term continuous operation of the air compressor, the oil seal is worn and aged. As a result, oil leakage occurs at the oil seal on the side of the large gear coupling (shown at the leak point A). The pinion shaft seal is a labyrinth double carbon ring seal. Due to the high speed, (7 low speed rotor speed 27374r/min, high speed rotor speed 39236r/min), in order to prevent shaft seal leakage, in each stage pinion shaft The seal is designed with a positive pressure, that is, a compressed air is introduced through the pressure regulating valve to enter each stage of the pinion shaft seal, thereby enhancing the sealing of the shaft seal. 1. At the same time, with the pinion shaft seal The wear and tear, the compressed air enters the gear box and the fuel tank through the shaft seal, and then drains through the oil mist filter, which causes the gear box and the fuel tank to be in a "positive pressure" state, resulting in a static seal of the fuel tank return pipe and the oil pump inlet pipe. Oil leakage is easy to occur (shown as leak points B and C). The schematic diagram of the structure of the air compressor is as follows: 3 Solution to treat the leakage point 3.1 The method and disadvantages of the conventional treatment of the leakage point are caused by oil leakage on the side oil seal of the large gear coupling. The conventional method generally takes the replacement of the rubber oil seal to thoroughly Solve the problem of oil leakage, but the cost of spare parts is high and needs to be shut down. For oil leakage problems such as fuel tank return pipe and oil pump inlet pipe, the following methods are often used: too thin trampoline 笫n buried alasHam: beach bffffi: 3VPg2 buckle cp'-gas 矬*塍 淌烽. S=0.9 4isi+Jir has lstu剡3钭 烟 脔晌 脔晌 脔晌 脔晌 鹄 鹄 鹄 戽菡菡 戽菡菡 戽菡菡 戽菡菡 戽菡菡 戽菡菡 isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi isi f is a hindrance.

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3.21 boxes; wx oil-loaded bath 塍 buckle 3: 漭 漭 知 | 1 sight HJJfr group -, isi + lJfrls: FM - Hushang station 戡 苕 苕 苕 茚淳屮 茚淳屮 茚淳屮 茚淳屮 茚淳屮 茚淳屮 茚淳屮 茚淳屮 茚淳屮 茚淳屮 , , , , , , , , , , ,钭±砻乔载浴站薄菊枉龅宣苗埋>苗阊回苗知苗湖> 口鹕移£1 buried 淳 3肼, 3-涝铒料吩, station 戡阊知苗阊 3-3 acres芘 脔孬 a, a live feast 斛菡 3-琳 choose spoon, HfT Lu | 婢, iad-阕蝥ttilp, Dunsai KJr title plus, 鹄何湘岳: talk about PAPPLUS series centrifugal air compressor oil spill The above treatment is designed to be installed on the centrifugal air compressor oil mist filter after the jet pump head is designed better than the 5 jet pump installation position. This ensures that the fuel tank and the gear box are always in the "negative pressure" state. The oil leakage problem, the oil and gas separation function, so that the lubricating oil mist sucked in with the air is collected by the oil mister and returned to the oil tank. A valve is installed on the working fluid source of the jet pump, and the air pressure is conveniently adjusted according to actual needs. The schematic diagram of the on-site installation of the jet pump is as follows: 1. Three-stage impeller; 2. Gear box; 3. High-speed pinion; 4. Large gear; 5. Second-stage impeller; 6. Main oil pump; Oil mist filter; 8, motor; 9, leakage point A gear; 11, first stage impeller; 12, leakage point B; 13, fuel tank; 14, leakage point C; 15, electric oil pump; 17. Jet installation jet pump on-site installation indicates the conclusion 1 After the PAPPLUS series centrifugal air compressor is added with the jet pump, the original leakage point is thoroughly treated through practice, the site environment is greatly improved, the lubricant is saved, and the oil is extended. The service life of the shaft seal saves the spare parts, materials and maintenance costs, and eliminates the phenomenon that the air compressor is shut down for maintenance due to the oil leakage of the shaft seal, which ensures the safe and smooth operation of the equipment. Because of the general tank and bearing of the jet device The leakage point of the seat can achieve good treatment effect, so the current flow device has been applied to the JOYC -8 series centrifugal air compressor and the reaction tower blower.

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