Mobile Gearbox Oil ChangerThe CMM-G unit is designed for a three-stage process of changing oil in wind turbine gearboxes (draining old oil, flushing the gearbox and filling it with new oil). The unit allows for quick and efficient servicing of wind turbine oil system. The unit can be used for servicing wind turbines made by many different manufacturers. The CMM-G can also heat clean oil.
TRANSFORMER OIL REGENERATION PLANT CMM-R12In the regeneration process, the products of aging and acids are removed from the oil; the oil’s color is improved, along with oxidation stability and gas solubility.
Vortex Layer Device AVS 150CSDry modified construction mix, ready mix concrete, portland cement, wastewater treatment, acid water neutralizing, water purification and disinfection.
Modification, activation, desintegration of solid and liquid materials
Electromagnetic Mill AVS 100Mill abrasives and metals to 0.4 microns in size! This Vortex Layer Device operates on the principle of transforming the energy of electromagnetic field into other forms of energy.
Oil purificationGlobeCore engineers insist that one process can address the issues above — Silicone Oil Recycling. Our team has developed a new machine for Silicone Dielectric Oil purification. Its great advantages are compact size and efficiency.
Transformer Vacuumizing UnitsThe BV vacuum unit is a double stage vacuum system. The first
stage creates preliminary vacuum up to 0.5 mbar. It is equipped
with a rotary vane vacuum pump. The second stage brings
vacuum to 0.01 mbar. This stage is equipped with a Roots vacuum
Continuous Oil HeatersThe PPM continuous oil heater is designed for heating of
transformer oil during filling or change of the oil and drying of
transformers. The unit can heat mineral, industrial, turbine and other
The unit can be used in transformer manufacturing and servicing
facilities, power plants and oil processing facilities.
Zeolite Regeneration UnitThe BRZ zeolite regeneration units restore performance of zeolite
in sorbent cartridges, such as ZP-260.
With a stream of hot air, moisture is removed from the sorbent,
restoring its absorption properties.
Vacuum Degassing UnitsThe CMM units are designed for removal of water and
particulate matter from electrical insulation and lubrication oils.
The CMM units are used during installation and repairs of power
transformers and for washing and filling of hydraulic systems.
The CMM units feature simple design, making them easy to
operate and service.
Oil Reactivation UnitsThe unit is designed for reactivation of sorbent (Fuller’s earth,
bleaching clay), used in regeneration columns of oil reactivation
After reactivation, the sorbent can be reused for oil regeneration.
Mohave Heat Air Drying UnitsThe Mohave Heat is designed for purging of transformer tanks and electrical systems with hot dry air to prevent moisturizing of windings during transformer
servicing or assembly.
Vacuum Degassing UnitsThe secret of the high efficiency of GlobeCore units are activators
which promote near-instant release of gases and evaporation
of water from oil.
The UVM units are equipped with a special oil heater which prevents oil burning due to low mean surface power and prevents
oil overheating after the machine is stopped.
Transformer vacuum furnaceTransformer vacuum furnace designed for drying the solid insulation of power transformers.
News & Articles
GlobeCore Engineers Develop a New Cable Oil Processing Unit
8.1.2018110-500 kV OF cables are used for the following purposes: output of power from hydro power plants to distribution... Read More
Commissioning of a Bitumen Emulsion Unit in Myanmar
7.17.2018In July 2018, a GlobeCore UVB-1 unit was commissioned in Myanmar. Beside the commissioning, GlobeCore engineers also trained customer... Read More
Special Aspects and Differences of Transformer Oil Regeneration in GlobeCore MCU and CMM-R units
7.11.2018Special Aspects and Differences of Transformer Oil Regeneration in GlobeCore MCU and CMM-R units
7.11.2018GlobeCore offers several models of transformer oil regeneration units. This article looks into the differences between regeneration in MCU... Read More
Regeneration of oils and fuels with the UVR-450 (UVR-L)
7.17.2018A new video on one of the most sought after and versatile GlobeCore units, the UVR-450. This unit was... Read More
The fuel oil blending with water by means of emulsifier on vortex layer devices
4.13.2018This video contains the description and the results of an experiment mixing diesel fuel and water in the AVS-150... Read More
Bitumen emulsion production. GlobeCore UVB-1 Units
4.13.2018The total volume of global bitumen emulsion production is growing due to the advantages of the material over straight... Read More
Purification and utilization of co-produced water from oil production fields
7.27.2018Produced water from oil and gas exploration and production. Man made bore holes cause many billions of cubic meters... Read More
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GlobeCore GmbH is one of the world leaders in industrial manufacturing. Products of GlobeCore are used in transformer oil purification and degassing, insulation oil filtration, power transformer vacuuming.
The head office is located in Oldenburg, Germany. Our systems have been supplied to and are successfully operated in 70 countries. A network of 17 dealers supports global sales and services.GlobeCore established representative offices in United States, and South Africa and in United Arab Emirates to extend reach and improve efficiency. We actively expand production and sales territories, develop our infrastructure and introduce new additional services.
GlobeCore is a member of American Wind Energy Association www.awea.orgGlobeCore today is a large and diverse company. Over 260 specialists are working as a team from metal cutting to final assembly of the products.The production facility is equipped in compliance with international industry standards: it features robotic plasma metal cutters, automated welding systems and modern PLC controlled machinery.
The engineering staff systematically develops new oil purification equipment and improves existing product lines. GlobeCore produces hundreds of units annually and each product is thoroughly tested at the company’s testing facility.Hundreds of grateful letters and comments from our clients confirm that we are moving in the right direction. During the company’s long life we have established numerous contacts and created a vast network of return clients. And we are not stopping. GlobeCore is open for potential consumers and extends an invitation to all to visit our facility.
Waste oils are an issue for the global environment. They pollute large areas of land and water bodies, leading to the death of animals and causing serious illness in humans. The most effective solution is oil purification and subsequent re-use of purified oils. Usually oil purification is a multi-stage process consisting of sedimentation, centrifugation, coagulation, selective purification, filtration and combining some of these methods regeneration.
Sedimentation cleans oil in special containers using gravitational forces. As a result, it removes solids, as well as free and dissolved water.
Centrifugation removes these impurities, and is more effective, since it takes less time. Electrophysical oil purification removes solid contaminants and partly oil sludge and aging products.Sometimes oil purification uses coagulation. But in reality, it only intensifies other approaches by introducing special substances (coagulants) into oil, which promotes the coalescence of impurities. Then the larger particles are easier to remove through filtration, sedimentation or centrifugation.
Selective purification is a selective dissolution of undesirable oil components with the help of solvents.After removing impurities from oil the solvents are removed and reused. The main disadvantage of this approach is inability to process oils that contains additives. Since oil additives are absorbed by a solvent together with harmful components, resulting in performance deterioration.
Filtration is used in different oil purification equipment.
Earlier, oil filtration was carried out mainly with the help of filter presses, which removed mechanical impurities, emulsified and dissolved water. Filter press pushes oil through a porous medium that retains water and solid particles. A filter medium is chosen according to the quantity and nature of existing contaminants. The factors that affect filtration are:
- viscosity of oil;
- filter media thickness;
- filter media surface area;
- oil pressure.
Now transformer oil filtration is carried out mainly with the help of porous polymer filters. They retain oil impurities and control their particle concentration and particle count, distributing the impurities by size and groups. The diversion from filter-presses was caused by their cellulose structure. Since cellulose particles that entered transformer oil caused a decrease of breakdown voltage and increase of dielectric losses. Polymer porous filters trap more impurities, and lose their absorption ability relatively slower.
Generally oil filtration uses pumps to create pressure to pass oil through a filter partition, which traps solid particles. Magnetic filters work differently. They attract particles of ferromagnetic materials.
Filters provide a required fineness – coarse, medium and fine oil filtration. Also, some filters are replaceable and some have a removable filter element.
Oil filtration does not remove water and dissolved gases. This problem is solved through.degassing.
In service oil should not contain water and dissolved gases. Dissolved gases decrease the overall electrical strength of the insulation system, since gas bubbles often contain electric discharges. Therefore oil degassing is a necessary measure in operation of power transformers and other industrial equipment.
Nowadays degassing of oil by thermal vacuum treatment is the most effective solution. It is realized in two stages. In the first stage in vacuum, there is an intensive release of water vapor and gases. This process removes 60-90% of the initial volume of moisture and gases. The rate of evaporation could be increased by increasing interface between oil and gas phases, and reducing the thickness of the oil layer. Technically, for this process are used Raschig rings, Kerting nozzles, to spray oil into vacuum column.
Oil degassing by ultrasonic cavitation uses a special vibrator under vacuum that forms microbubbles filled with gas and water. The bubbles rise to the oil surface bringing with them gases and moisture.
Producers of power transformers request oil degassing during site installation and during routine maintenance for reliable operation. Transformer oil for good exploitation should not contain gases more than 0.1% by volume.
During operation, oil can become contaminated not only with solid particles, water and gases, but also with products of aging and oxidation that significantly reduce its performance characteristics. This contamination is removed through regeneration that improves oil parameters and extends the service life of oil, and the entire transformer by more than 20-25 years.
Often the terms “oil regeneration” and “oil purification” are identified. But in fact they are not the same processes. Oil purification is a part of oil regeneration. But it is also used independently, usually when oil aging has not yet reached a critical level.
Regeneration also removes sludge, acids, asphalt-resinous substances, organometallic and polyaromatic compounds, unsaturated hydrocarbons and decomposition products. The process is stabilized with special additives.
In practical operation, the degree of oil aging is determined by analyzing the acid number. The acid number value determines the following oil characteristics:
- oils with acid number below 0.25 mg KOH / g;
- oils with high degree of aging (acid number 0.25-0.5 mg KOH / g);
- heavily oxidized oils (acid number exceeds 0.5 mg KOH / g).
Oil purification methods listed above cannot remove oxidation and aging products. Therefore, oil is regenerated with the help of adsorbents, which trap acid compounds, asphalt-resinous substances and other products formed during operation. This approach is relatively simple and has a high rate of purification. It can process all currently known types of industrial oils. The adsorbents used for oil regeneration are active carbons, silica gels, zeolites, bleaching clays, etc.
Oil purifiers from GlobeCore
GlobeCore produces CMM oil purifiers. This equipment is designed taking into account all the latest trends and requirements of the market for purification and regeneration of oil products.
They imploy modern technologies of oil recovery:
- multistage filtration for removal of solid particles;
- thermal vacuum treatment for removal of water and gases ;
- adsorbent purification to remove products of oxidation and aging (silica gel, zeolite, Fuller’s earth).
Depending on the oil condition, you can select both oil purifier and oil regeneration plant. One of the best equipment of GlobeCore is rightly considered a CMM-R unit, designed for processing insulating oils directly in a tank of an energized transformer. It regenerates oil through a complex of processes, heating, degassing, vacuum treatment and adsorbent purification, with adsorbent reactivation. The unit uses Fuller’s earth for oil purification .
The oil purifier CMM-P can be connected to an energized and de-energized transformer. The oil is regenerated as it circulates in a closed loop between transformer and oil purifier. The Fullers earth adsorbent removes aging products and sediment that has collected in a tank. This last fact helps to completely remove impurities, which are difficult to get rid of and which then fall into fresh oil and deteriorate its operational properties.
Another important advantage of GlobeCore technology is a repeated reactivation of adsorbent. Fuller’s earth properties can be restored up to 300 times, which is equivalent to 2-3 years of CMM-R operation. In this case, the reactivation proceeds in parallel with oil treatment.
Correctly chosen regularity of regeneration prolongs the service life of power transformers, restoring their dielectric strength and chemical composition of electrical insulating oils.
Oil treatment from GlobeCore: the main advantages
What are the advantages of GlobeCore technologies? First of all, it is ecologically friendly equipment. It does not emit harmful impurities into the atmosphere and saves the environment from waste oil disposal or storage.
The second advantage is financial. Regular oil treatment extends the service life and reliability of oil-filled equipment. It also saves costs on purchase and disposal of oil, maintenance and repairs, as well as costs caused by forced downtime.
The third advantage is an ease and safety of maintenance and operation of oil treatment plants.
In addition to cleaning and regeneration equipment, GlobeCore also produces plants for service and maintenance of power transformers (absorption dryers, flow heaters, refilling, pumping. storage and transportation systems, vacuum systems and hot air dryers). For the convenience of the customer, this equipment is mobile (on a trailer, on wheels) or stationary. It is designed to work in special conditions (explosion proof).
The main advantages of oil processing with GlobeCore technologies:
- connection to transformer in compliance with all safety standards (Transformer Safety System);
- anti-foam system;
- oil sensors;
- replaceable cartridges (filtration fineness 1, 5 and 25 microns);
- safe and easily adjustable tape heaters with low heat capacity;
- efficient coagulator-evaporator in the vacuum column;
- fully automated process
- Optional remote control and monitoring via smartphone or PC.
GlobeCore is also ready to provide all assistance in commissioning and ongoing technical support of its equipment.