How is the diaphragm compressor sediment caused?
Diaphragm compressors often suffer from sediment such as sludge and carbon deposits. This harmful substance is likely to affect the high efficiency of the compressor operation, improve the maintenance costs, or lead to the shutdown, explosion and other major accidents.
So, how does the diaphragm compressor sediment happen?
During the continuous operation of the compressor for a long time, the residue and water in the air are easily fed into the diaphragm compressor oil, which is the external pollutant of the sediment.
The main component of the basic diaphragm compressor oil on the market is nitrogen oxides. Diaphragm compressor generally operates under the premise of ultra-high pressure and high temperature. Under the catalytic reaction of O2, water and alloy, the compressor oil produces a redox reaction, causing the oil to dissolve and cause internal oxides.
The higher the hardness of the diaphragm compressor oil with high temperature and O2, the stronger the redox reaction. Peroxides and hydroperoxides go through hydroxyl aldehyde condensation to produce aggregates or polymers, which further air oxidation into high aspect specific nitrogen oxide oxides, generally called oxides. The oxide is generally thick and very easy to produce deposits on the engine, tank and casing. Common sediments contain paint film, sludge, coking plants and carbon deposits.
The paint film is a sticky plastic film separated from an epoxy resin, dedrying and / or converging on a hot surface layer. This kind of accumulation is not very serious, only a layer of plastic film. Paint film is a derivative of the lubricant. When the temperature of the compressor component is low, the precipitation is silt. The mortar consistency of the mud is very likely to be too soft or slightly hard. If the standard is soft in the job, the mud that causes is too soft very likely. This type of mud is called ultra-low temperature mud, occurs when the temperature is less than 95℃. When the working temperature exceeds 120℃, the high temperature oil mud occurs, and the mortar consistency is relatively large.
When the air oxidation of refined oil products aggravates to a certain level, a lot of high polymer and colloidal solutions gather together to produce the said coking. At this time, the damage of the compressor causes metal material damage broken slag into the oil, this metal ion is a pure natural metal catalyst for redox reaction, accelerate coking. The coking plant is also a sediment, most likely to contain oil, water, epoxy resin (similar paint film) and solid pollutants.
Different kinds of diaphragm compressor oil have different coking tendency. After removing the fault factors of refrigeration compressor equipment, the quality of diaphragm compressor oil can directly affect the coking trend of diaphragm compressor.