How to solve the problem of seal oil consumption is too large, finish see know

The sealing oil abnormal loss what should we do? 1, seal oil leak out through floating ring seal, axial through oil into lubricating oil of lubricating oil, the oil seal of the oil return to the lubricating oil. This problem can be check the status of the oil return, such as oil, temperature, color, etc. Outside the oil return oil return pipe is generally open, not easy jam. This problem can be through the improvement of gas injection and seal oil control scheme, reduce the seal oil pressure, improve the oil return system, chamber pressure, gas injection before and after adding the balancing tube floating ring structure of reform means to solve. 2, seal oil flow belongs to equipment, pipelines, valves, instrumentation, flange, etc exist in the leak, the sealing oil leakage of the surface or infiltration equipment in the other side of the media. This kind of problem with regular screening, find out the part of the problem, repair. 3, seal oil inside the oil return not free, low voltage side in oil return to overcome comb resistance and dry gas sealing pressure, axial entrance into the body level, with the rich gas compressor discharge; High side within the oil return may also be through the equalizer line entrance into the body, is this kind of circumstance usually took place, also relatively hidden, often should check the oil cooling, filtration equipment, and seal the control parameters of oil is normal, such as the seal oil pressure, oil and gas pressure differential, high oil tank liquid level, oil and gas separator liquid level, the machine pumps, electrical, instrumentation, valves, etc. The use of the situation, the status of the internal and external oil return, especially inside and outside the oil return flow, temperature, color, etc. Can also be the scene forensics, measure the seal oil wastage and normal seal oil wastage of poor; Lower level after two oil and gas separator, manual valve closing level control valve, the hand and vice line valve, recorded in liquid level line slope or liquid level changes over a period of time their calculated values and the inner diameter of the oil and gas separator and the quantity of oil as well as their, compared with normal, look to whether similar to tank of liquid level decline in value, to judge the running loss of oil in the back. To solve this problem can use the following two methods: will suppress, after the expiration of the oil and gas separator by rapid emptying liquid emptying, repeated several times, return to normal after run oil return loss situation inside observation; Through change across the line, double pumping oil into the oil and gas separator in a pipe of oil and gas, or improve the pressure difference inside the return pipe road, realize high pressure differential rapid separation of oil and gas. 4, oil seal oil seal high tank upper reference gas pressure pipe entrance into the body. This kind of situation usually occurs in the case of high tank level control failure, especially in the inlet pressure is reduced, when stop the unstable pressure difference control of oil and gas, are more likely to cause high tank hydraulic control failure. To solve this problem is easy: check processing high tank liquid level, to machine shut down its entrance pressure pipe valve or the sealing oil water pump shutdown, remain high tank liquid level is stable. Five poor discharge of oil, oil and gas separator are generally poor oil discharge pipe of oil and gas separator, liquid level control valve stuck or control instrument malfunction caused by. Oil discharge breakdown lead to high liquid level of oil and gas separator, the oil return by the oil and gas separator upper isolated gas ran back to the body line loss. This problem is simple: take the line, with liquid level meter line valve control oil and gas separator, the sealing oil back to normal degassing tank, check and repair the regulator or control system; If the sealing oil degassing tank back line, detachable line cleaning, artificial joint sealing oil degassing groove back. 6, the sealing oil degassing tank nitrogen gas mixing system problems. Because the nitrogen into other media such as kerosene, gasoline, enter the degassing tank, after degassing tank liquid level is high, gravity flow into the tank, the entire seal tank and diluted in the sealing oil system, pollution, after being sealed tank of liquid level with, from sealed tank vent place outside, this situation is more dangerous, will make the seal oil running loss a lot and seal oil quality quickly. Should be through the screening, in time to cut off the nitrogen gas mixing system a source of nitrogen, back step oil adding fresh oil displacement, until the tank sealing oil qualified. What is a floating ring seal of floating ring seal is the use of floating ring and the pressure between the rotating part of high oil film to prevent leakage of medium of a kind of dynamic seal device. Also called & quot; The oil film seal & quot; 。 By several can float bad of the floating ring seal, floating ring pin restrictions can not rotate. Near the side of medium access into the pressure slightly higher than medium between floating ring seal fluid. Sealing fluid into the floating ring and the clearance between the rotating part along the axial ends to flow, a small amount of lateral sealing fluid into the media and through the baffle, swing through the mixing chamber after oil cup, big expensive sealing fluid through atmospheric side floating ring by throttling depressurization back out, so as to prevent the leakage of the medium. What is the role of the floating ring seal on both ends of the floating ring seal is mainly used for casing for the use of shaft seal, in order to prevent the escape of gas in or air is drawn into the body. Floating ring seal has a simple structure, stable performance, reliable operation, long service life, etc. The downside is near the medium side seal oil vulnerable to pollution, resulting in seal failure. In order to reduce the pollution of oil seal, have to inject blocking gas ( Dry air or nitrogen) , so the need for oil seal and seal gas control system, and this increases the floating ring seal technology complexity and cost of equipment. In the actual operation process, the sealing oil wastage big threat to the safe and smooth operation of the unit, so should pay special attention to.
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