The transformer is one of the main assets in the electrical power industry which needs to be maintained for guaranteed uninterrupted power transmission in order to get assured revenue benefits. Transformer oils are important for functional transformers and are the dielectric substance that helps in maintaining their temperature. Transformer oils are vital for the proper running and functioning of the transformers.
About Transformer Oil Filtration:
Transformers require filtered and dried oil. During its usage, the insulating oil absorbs moisture and gets polluted by sopping fibres, dirty particles, aging products, and soot. Even unused oil is not clean enough as it may have absorbed moisture from the air or may have got polluted in the barrel it was stored in. The efficiency of the oil as an insulating material is highly reduced as the moisture level increases. Hence,transformer oil filtration is an important process that eliminates solid particles, dissolved gasses, and dissolved water. The electrical properties of the oil can be enhanced by filtering, dehydration, and degassing. Oil Filtering keeps the transformer in good condition and increases its life.
Tungsten carbide has high hardness and wear-resistance, The cutting speed of carbide tools is 4 to 7 times higher than that of high-speed steel with 5 to 80 times higher service life. Carbide products can cut hard materials of about 50HRC.
Cemented carbide is mainly micron-sized powders of carbides (WC, TiC) of high-hardness refractory metals. The main components are powder metallurgical products sintered in a vacuum furnace or a hydrogen reduction furnace with cobalt (Co), nickel (Ni), and molybdenum (Mo) as the binder.
The matrix of cemented carbide is composed of two parts: one part is the hardening phase and the other part is the bonding metal.
The hardened phase is the carbide such as tungsten carbide, titanium carbide, and tantalum carbide. Their hardness is very high, and their melting points are above 2000°C, and some even exceed 4000°C. The existence of the hardening phase determines the carbide has extremely high hardness and wear resistance.
Tungsten carbide WC grain size requirements for cemented carbide use different grain size WC according to different applications.
Carbide cutting tools
Carbide cutter is widely used for metal cutting and machining. Fine machining alloys such as foot cutter blades and V-CUT knives use ultra-fine, sub-fine, and fine-grained WC; rough-machining alloys use medium-grain WC; gravity cutting and heavy-duty cutting alloys use medium and coarse Granular WC as raw material.
carbide brazed tips
Carbide mining tools
The rock has high hardness and a large impact load. Coarse WC is adopted, and the rock impact is small with a small load. Medium-sized WC is used as raw material.
carbide mining tips
Carbide wear-resistant parts
When emphasizing its wear resistance, compression resistance and surface finish, adopt ultra-fine, sub-fine, fine, and medium-grain WC as raw material and use medium and coarse-grain WC raw materials as the main material for impact-resistant carbide wear parts.
tungsten carbide parts
The theoretical carbon content of WC is 6.128% (atomic 50%). When the carbon content of WC is greater than the theoretical carbon content, free carbon (WC+C) appears in the WC. The presence of free carbon causes the surrounding WC grains to grow during sintering, resulting in uneven grains of cemented carbide. Tungsten carbide parts generally requires high combined carbon (≥6.07%), free carbon (≤0.05%), and total carbon is determined by the production process and scope of application of cemented carbide.
The bonding metal is generally iron group metals and cobalt and nickel are commonly used.
Hydraulic fluid may become contaminated as a result of several factors. First, we need to understand the basic difference between primary and secondary pollution. Primary pollution occurs in the system before commissioning. Accordingly, secondary pollution is the pollution that occurs directly during equipment operation. Primary system contamination occurs due to the presence of residues of machining and assembly, as well as the impurities contained in fresh oil. Secondary contamination is most often caused by machining residues, products of abrasion and corrosion, and dirt, which gets into the system from sealing materials of cylinders or through breather channels in tanks.
Previously, less attention was paid to the dependence between hydraulic equipment service life and the purity of hydraulic oil. But recent studies have shown that there is a strong relationship between these parameters. Therefore, hydraulic oil purifier should be a mandatory procedure, an important part of measures aimed at the extension of the service life of machinery and equipment and reducing failure rate. For example, the all-knowing statistics say that the main causes of premature failure of roller bearings include inadequate lubrication, the presence of particulate matter in oil and overload.
Tongrui transformer oil regeneration plant regenerates aged transformer oils into like new condition fulfilling the requirement of IEC 60422 standard as well as removes corrosive sulfur from transformer oils. REOIL transformer oil regeneration plants are built with variable capacity and sorbent reactivation capability. Plants are of stationary or mobile design and can work on offline or online transformers.
Unique reactivation technology Automated operation on online and offline transformers Automatic removal of corrosive sulfur from transformer oils Works on all types of mineral transformer oils
Purification involves the removal of solids and other impurities including water, gases and sludge from oils and fuels. Oil purification forms an important part of regular preventative transformer maintenance. Tongrui has been supplying oil purification plants to the electrical generation market for twenty years. Our strength is particularly strong in the area of transformer oil purification. All our purifiers, both mobile and fixed, provide extremely favorable returns on investment for our clients. The necessity for regular purification of electrical fluids in electrical apparatus has been recognised for a very long time. The function of electrical insulating fluids as a coolant and insulator can be seriously affected by moisture and gaseous contaminants. This transformer oil purification plant range is designed for processing transformer oil in workshop or in the field, in storage tanks, drums or directly in transformers. Purification of oil in transformers can be carried out off-load or on-load depending upon customers\’ preference. Ourtransformer oil purification plant is available in a range of capacities with a variable range of optional equipment and accessories.
At the moment Turbine Oils are cleaned by centrifuge, which remove contamination and free water. A centrifuge cannot remove emulsified water from turbine oils, which acts as a catalyst to increase oxidation, causes foaming in oils and reduces component life. One of the major problems of continuous water presence in the oil is the formation of varnish, which is a thin insoluble film deposit that is usually found on bearings and servo-valves. A centrifuge cannot remove varnish from turbine oils.
The Tongrui turbine oil purification system is designed to remove contamination in stages and the continuous cycling of oil through it ensures that even the smallest size contaminants, varnish and sludge are removed to provide super – clean oil in the parent machine.
Tongrui Vacuum Turbine Oil Purifier (Oil Purification System) utilizes vacuum dehydration combining with coalescing & micro-glass filters media technology into one system for efficient and cost-effective oil purification and maintaining absolute cleanliness of turbine lube oil. Coalescing filters remove mass free water, vacuum dehydration removes moisture dissolved and micro-glass filters remove mechanical particles. Tongrui Turbine Oil Purification Plant is ideal oil purifier for extending turbine oil life and has the features of low maintenance and operation cost.
1. Advance technology and design, with steam turbines online and offline processing, a high degree of automation, compact size, mobile and flexible structure.
2. Coalescence filters with oil-water separation technology to optimize the combination of dehydration.
3. Bring 5000 ppm of free, emulsified and dissolved water down to 50 PPM. Achieving filtering rate 1 micron or high
4. Temperature range of 20-100
5. Automatic pressure alarm shutdown system, automatic overload protection system, automatic constant temperature system, automatic protection against failure, etc. to protect the equipment safe running.
5. Self-contained, skid-mounted, stationary system or as a portable system
Based on the filter cartridge and vacuum dehydration
Hydraulic Oil Cleaning Machines is portable oil cleaning and filtration system.
Continuous Filtration
Available in Different flow capacities like 500 – 12000 LPH
This machine is suitable for Hydraulic as well as compressor oil.
Free water removal centrifuge (optional)
Why Use Engine Oil Recycling Machine?
Used engine oil refers to engine oil has become black and the viscosity has increased, because of mixing with water, dust, other oils as well as metal powder; it also refers to engine oil has deteriorated and produced organic acid, colloids and asphaltic substances. Recycling of waste engine oil is to removal impurities using settlement, distillation, acid, alkaline as well as filtering.
Distillation is to pump motor oil or pyrolysis oil from waste pyrolysis plant into reactor, then to heat reactor at normal pressures. Gasoline will be produced when temperature is rising at 180 degrees Celsius, diesel oil will be produced when temperature is rising between 180-360 degrees Celsius.
Tongrui is a professional manufacturer in waste engine oil regeneration machine. Our plant can refine various of waste motor oil into high-quality base oil and high-purity gasoline and diesel oil. Cost of this Engine Oil Recycling Machine is low, but base oil produced has high quality. Our company owns the most advanced process technology, and our plant is very suitable for large-scale and industrialized production. More importantly, it is a green and free of pollution due to any pollution, odorless, emission and smoke will not be produced in the whole process. There are two types including batching and continuous used engine oil recycling plants, in accordance with different requirements of customers.
Tongrui used oil recycling plants substantially add to your bottom line by producing high quality base oils from used lube oils through a non-cracking evaporation type front-end treatment coupled.
When you consider that you need 160 litres of crude oil to produce 2½ litres of high quality lubricating oil but only 4 litres of used oil to produce the same 2½ litres of the same quality oil then it does not make sense to incinerate or otherwise dispose of used oil. The Tongrui used oil re-refining system has a comparatively small footprint, generates much of its own fuel from the feedstock being processed and with conversion costs as low as US 10 cents per litre can add up to 3 times the sales value of the oil, once processed. These features combined with the comparatively low investment costs of this type of waste oil re-refining system and the high quality of the output base oils make the WORP from Tongrui an excellent solution for your re-refining needs.
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