Purification additive and purification method for anti-ammonia steam turbine oil and emulsified ammonia-containing lubricating oil

Abstract

An ammonia-resistant steam turbine oil is disclosed in the invention, and is prepared through blending, by weight, 90 to 96 percent of base oil, 0.1 to 2 percent of an antioxidant, 0.1 to 0.5 percent of a metal deactivator, 0.005 to 0.01 percent of an anti-foaming agent, 5 to 30 ppm of a demulsifier and 1 to 4 percent of an anti-wear agent. The invention also discloses a purification additive for emulsified ammonia-containing lubricating oil. The purification additive is prepared from, by weight, 0.1-2 parts of the antioxidant, 0.1-0.5 part of the metal deactivator, 0.005-0.01 part of the anti-foaming agent, 5-30 ppm of the demulsifier and 1-4 parts of the anti-wear agent. The additive can purify ammonia-containing emulsified lubricating oil, so that the service life of the lubricating oil is prolonged by more than 50%, the anti-oxidation time of the lubricating oil is prolonged to 1130 minutes from the previous 700 minutes, the anti-oxidation time of the emulsified lubricating oil is reduced to 2 minutes from 18 minutes (exceeding the national standard range), the demulsification performance is greatly improved, and oil-water separation is realized.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil, and in particular relates to an ammonia-resistant steam turbine oil, a purification additive for an emulsified ammonia-containing lubricating oil and a purification method. Background technique [0002] Engine oil, also known as lubricating oil, can lubricate and reduce friction for the engine, assist cooling and cooling, seal and prevent leakage, prevent rust and corrosion, shock absorption and buffering, etc. However, with continuous use, moisture will enter the lubricating oil, and under vigorous exercise, the lubricating oil will emulsify. This is because the additives conventionally used in engine oil generally have a lipophilic non-polar group at one end, and a hydrophilic group with a certain surface activity at the other end. The polar group has a certain affinity for water under rapid rotation, enhancing It overcomes the difficulty of oil-water separation and produces emulsifica...

AI Technical Summary

Problems solved by technology

However, the water vapor produced by fertilizer chemical companies also contains ammonia gas, which will react with certain additives in lubricating oil to form ammonium salts. Emulsions are difficult to achieve demulsification

Once the emulsified lubricating oil cannot be demulsified in time, the bearings of turbines and other equipment will heat up or vibrate, which will endanger the safety of the entire factory

At the same time, chemical companies use a large amount of lubricating oil, usually around 30,000 L, and the purchase cost is about 500,000-1 million, which is relatively high

In addition, when changing the lubricating oil, production needs to be stopped for replacement. The shutdown of a chemical fertilizer company can cause a loss of tens of millions of yuan per day. What is more serious is that for large-scale chemical equipment, when restarting the process, it is faced with various emergencies. However, a lot of equipment cannot re-enter the optimal working condition, which affects product quality, and what is more serious is that some large equipment will face the problem of not being able to start

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