Most power equipment is using transformer oil for its dielectric properties for cooling, insulating, and protecting the active parts. Transformer oils are highly refined oils that consist mainly of a mixture of hydrocarbons. Over time, oxidation by-products start to form in the oil. Increases in oxidation by-products result in the increase of acidity (neutralization number) and decrease the interfacial tension of the oil. At this stage, sludge starts to form, and oil is losing its dielectric properties because it is getting old. To prevent further deterioration of oil and possible damage to the active part of the transformer, the oil needs to be regenerated. Oil regeneration equipment regenerates oil in steps.

At the inlet of the equipment, oil is filtered through a coarse filter to prevent any particles from entering the equipment. It is then heated to the desired temperature to elevate the regeneration effect. After the oil has been heated, it enters the back section of the equipment. Oil is pumped through the back section which houses columns with sorbent media. It is in this section where the oil is stripped of impurities and ageing by-products.

Oil is then pumped through a vacuum breaking valve into the degassing section where it is dehydrated and degassed. Treated oil is then pumped back to the transformer by the outlet pump. After a given period, sorbent in the back section of the equipment achieves full saturation and is no longer able to regenerate oil. At this stage, the sorbent needs to be reactivated (restored to its original state) to be able to regenerate oil again. Reactivation stage starts by draining the columns in the back section of saturated oil. After the oil has been drained, a vacuum is created and maintained throughout the whole reactivation process in the back section. Then by selective use of heating elements on the top parts of individual columns, the reactivation process is initiated. During the process, the impurities are removed from the sorbent which restores it to its original state. This entire process can be repeated many times until the sorbent starts to lose its properties and needs to be replaced.

TINVO, found in 2007, is a company among the manufacturer, trader & technical service provider of hot and cold rolling mill rolls, steel making machinery & accessories. Our leading products are precisely engineered and fabricated from fine grade materials and advanced technology, some of them are procured from certified top-class partners. Our product range is inclusive of Hot & Cold Rolling Mill, Wire Rod/Rebar Rolling Mill, Strip Rolling Mill, Section rolling Mill, Straightening Machine, Drawing Machine, Fly wheels, Cast Roll, Forged Steel Roll, Special Mill Roll, etc.

Mill Rolls

The mill rolls are mainly used for the rolling mill, which cause continuous plastic deformation of the metal. The roll is mainly composed of a roll body, a roll neck and a shaft head. The roll body is the middle part of the roll, which actually participates in the rolling of the metal with a smooth cylindrical or grooved surface.There are steel rolls, cast iron rolls, alloy rolls, ceramic rolls, etc, according to the roll material.Depending on the manufacturing method, the mill rolls have types of casting rolls, forging rolls, surfacing rolls, sleeve rolls, etc.Also mill rolls are classified into hot rolling rolls and cold rolling rolls, as per the steel.The properties and quality of a roll generally depend on its chemical composition and manufacturing method and can be evaluated by its microstructure, physical and mechanical properties.The mill roll features resistance to thermal cracking, high hardness, impact resistance, strict finish requirements, etc.

Rolling Mill

Rolling mill is an equipment used for the rolling process of the metal and it can complete the entire process of rolling. There’re mainly cold rolling mill, hot rolling mill, continuous casting machine, copper aluminum-zinc rolling mill, etc. The rolling mill mainly consists of unwinding machine, rolling system, driving system, hydraulic system, control system, roll removal device, etc. According to the product variety, the specifications, requirements for quality and output, select the type and size of the finished or semi-finished rolling mill. It can be equipped with transport auxiliaries, lifting and other auxiliary equipment. The development trend of the rolling mill is continuous, automated and professional with high quality and low consumption. The types of rolled products are constantly expanding. Some new rolling methods which are suitable for continuous casting and rolling as well as various special structures adapted to new product quality requirements and improving working efficiency are being developed.

Auxiliary Equipment For Rolling Mill

Auxiliary equipment refers to various machinery and equipment other than rolling mill. It consists of mechanical equipment used to complete a series of auxiliary processing procedures. According to the difference usages, auxiliary equipment can be classfied into the flying shear machine, drawing machine, straightening machine, cooling equipment, lifting and transporting equipment, etc. The selection of auxiliary equipment is very important for rolling mill. The equipment should meet the requirements for product production.It has high working efficiency and guarantees that the rolling mill save rolling time with high output.The structure of the equipment should be advanced and reasonable with flexiblity in movement, easy to operate and maintain.The standardization of spare parts is necessary with easy manufacturing.The production capacity of the auxiliary equipment is generally greater than the rolling mill to ensure product capacity of the rolling mill.The equipment design is economical and reasonable with small in size and light in weight.

Transformer oil regeneration plant regenerates aged transformer oils into like-new condition fulfilling the required standard. Transformer oil regeneration plants are built with variable capacity and sorbent reactivation capability. Plants are of stationary or mobile design. This machine completely restores dielectric oil to original condition and cleans the solid insulation.

Regeneration is 20% to 50% cheaper than new oil.
Life extension with efficiency boost.
Removal of corrosive sulphur (DBDS) and deterioration products.
No downtime due to online & offline regenerating capabilities.
The transformer oil reclamation plant is suitable for treating transformer oil and it will make it new with the help of reclamation bags and then by heating it and passing it through the specially designed filter and subjecting it to ultra-high vacuum treatment which dehydrates and detoxifies the oil to achieve following improvements after filtration as per IS 335-1993 for new transformer oil purification and IS 1866 for used transformer oil filtering.

This oil dehydration machine helps to dry out moisture and gas of waste insulating oil. Particulate impurities are separated gradually, from coarse particles to tiny ones, as they pass the filter assembly. The filter fineness can be customized according to clients’ request.

Yuneng’s vacuum transformer oil dehydration, degassing, and purification unit can remove water content, gases, and solid contaminants from insulating fluids, recovering oil dielectric strength (breakdown voltage BDV).

The vacuum oil degasifier can be encased and mounted on a mobile trailer for on-site fieldwork at the power station, electrical substations, and where transformer maintenance is needed. Besides oil-immersed transformers, our transformer oil dehydration and purification machine can also be applied to maintain oils used in other attendant electrical equipment, such as regulators, mutual inductors, reactors, circuit breakers, switchgear, etc.

Features and Advantages:
1, it’s a new vacuum type, small 5-8 times higher efficiency than normal vacuum oil purifier.
2, with 3D flashing, dewater and degas very efficiently
3, combining the gauze filtering and polymer absorption technology for removing the impurities
4, This machine with the infrared liquid auto-control device, which can balance the quantity of outlet oil and inlet oil, so it also can operate on-line without the person.
5, it can work online with electric, vacuum oil-filling and drying for the transformer and other insulating equipment.

Vacuum dehydrators use heat and vacuum to remove water from industrial oil. .

• Remove water

Vacuum dehydrators are capable of removing water contaminants from oil. Basically, there are 3 phases of water in a standard system. These are free water, emulsified water and dissolved water.

1. Free water

It is the water that is not mixed with oil. You can visually identify it from the oil. Moreover, free water can be removed easily by decanting or pouring the oil gradually from one container to the other. To increase water removal speed, a vacuum dehydration system is needed.

2. Emulsified water

It is the water that has already blended with the oil. Emulsified water will not fall out or separate from oil when it is settled on the bottom. However, vacuum dehydrators can easily remove emulsified water in the oil.

3. Dissolved water

It is the water that has been dissolved into the oil. It is similar to humidity and cannot be identified by human eyes.

After free and emulsified water is eliminated, the vacuum dehydrator focuses on removing dissolved water. In other words, removing dissolved water is a slow process.

• Remove gases

Vacuum dehydration oil purification system removes entrained gases such as benzene, methane, propane, etc. from your insulating oil.

• Remove particulates

Vacuum dehydrators eliminate particles to achieve low particle count in the oil.

Why should you use a Transformer Oil Dehydration Machine?

Utilising vacuum dehydration oil purification system can provide the following benefits:

• Extends equipment’s performance for long term usage
• Eliminates machine downtime that is caused by contaminated oil
• Maximises oil life span
• Lower running cost

Conclusion

Eliminating water from oil is necessary to ensure system’s proficient performance. To achieve this, a reliable vacuum dehydration oil purification system provides great help. It increases the life span of the oil and machines and minimise deterioration and degrading which cause machine breakdown.

• As cooler

When the voltage goes up/down, the temperature of the transformer’s windings increases, oil is used to cool down the condition.

• As insulator

It acts as an insulator between the windings. It increases the resistance between them and avoids a short circuit.

• For security

It operates the level of oil inside the transformer. The temperature display of oil describes the inner condition of the transformer and shows any short circuit status. In this way, you will prevent the transformer from being severe losses and damages.

Yuneng offers our range of premium quality Transformer Oil Treatment Machine, which supplies the demands of different industries. This transformer oil Filtration Plant is developed using the best technology under the management of expert professionals. We have used better quality raw material to provide these transformer Oil filtration.

Yuneng’s Vacuum Lubricating Oil Recycling Machine is applied to recover and purify various high-precision lubricating oil, hydraulic oil, compressor oil gear oil, heat treatment oil, cutting fluids, quench oil and various industrial oils etc
It can remove free water, dissolved water, free gas, acid, emulsification, and eliminate impurity, big and small particulates, dust, and foam in the waste oil.
It can also eliminate metallic impurity, colloid, slide and the volatile matter (for example ethyl alcohol, gasoline, ammonia and so on).
It enhances the oil quality, restores the oil viscosity, augments the flash point and improves operational performance. Guaranteed the hydraulic system and the dynamic system, the lubrication system normal operation, so the machine is suitable for many lines, such as the mine, metallurgy, electric power, transportation, drilling and so on.

Yuneng’s Vacuum Lubricating Oil Recycling Machine is mounted with online particle counter and moisture tester, you can check the cleanness grade NAS during the operation, and the moisture tester will show and detect the moisture content timely in the oil, the unit of the tester can be PPM or ISO standard, which is very convenient and practical.

With triple-stage filters, oil-water separator, mainly used for turbine oil processing, can quickly and efficiently remove oil in the water, gas, impurities. So that the oil quality indicators meet the new oil standards to ensure that the unit regulation, lubrication system to work properly, to extend the maintenance cycle unit. Using the advanced international principles of strengthening the hydrophilic and hydrophobic, dehydration, precision filter in one, online demulsification, dehydration, acid removal, impurity removal, the turbidity of the turbidity emulsified turbine oil becomes crystal clear. It is suitable for the deep dewatering of transparent oil, hydraulic oil, refrigerating machine oil and other lubricants that need to remove a lot of water and finely filter the impurities

Features of the Lubricating Oil Recycling Machine

1. With the strong ability to filter the impurity, which can filter the particles completely.
2. With online particle counter and moisture tester together.
3. Advanced dielectric condensation device
4. This machine installs the new pressure protector, which can control the temperature automatically; also it can drain water on line by the water–separator device. So it is easy to control this machine.
5. We adopt the high-quality filter materials, which has a good function in anti-corrosive, thermostable, mechanical strength. Especially, the precision of eliminates impurity is high and the service life is long. Also, it has a large volume for storing the impurities.
6. The unique degas and dewater system: Using the Stereo-Evaporation technical, which can separate the water and gas from the oil quickly by the Multi-level water-oil separation technology.

Sanji-first, as a professional mobile workbench supplier, offers workbench with high-grade material, the most affordable price guaranteed. The workbench is widely used in laboratories, maintenance plants, electronic moulding, assembly lines, mould factories, machinery factories, etc.

Narrow Workbench With Wooden Table

Features

1. The table is suitable for placing some heavy objects such as iron drums with a hollow tool cabinet for storing relatively large materials.

2. Easy assembly with pre-drilled holes and included hardware.

3. Polyurethane-coated work surface for enhanced durability.

4. Steel frame in a tough graphite finish.

5. Ideal for use in garages, warehouses, basements or workshops

Mobile Workbench With Pegboard

Features

1. The stacked ball slides on both sides of the drawer provide excellent smoothness and improved service life. The extended stretch distance allows the drawer to be fully opened for easy extraction of objects inside the drawer.

2. Double-layer steel plate with mesh plate makes the body stronger and durable and the mesh plate is used to suspend tools or accessories to extend the use of functions.

3. The central lock uses a ring-shaped key structure to extend the life of the lock. In order to avoid opening the drawer after losing the key, each lock is assigned a corresponding number and the key can be reconfigured as long as the number is provided.

4. The four corners of the mobile workbench are equipped with anti-collision strips made of new composite materials, which can effectively buffer the damage caused by accidental collision during use.

5. It has 4 heavy-duty wheels with 125mm diameter for easier to cross obstacles, 2 universal wheels and 2 directional wheels for easy steering and movement.

6. Countertop has special small grooves for holding liquids such as butter for easy use.

Mobile Workbench With Electrical Rubber Board

Features

1. The workbench top adopts non-slip mats to effectively prevent the tools from slipping during the movement of the cart.

2. Two large space on the small surface to ensure that large and small objects can be stored.

3. Freely adjustable partitions in the drawer allow separating storage space freely.

4. Full-width aluminum alloy drawer handle with an interchangeable label, beautiful, convenient and practical.

5. Advanced drawer safety buckle design ensures that the drawer will not accidentally slide out after closing.

6. The best mobile workbench provides flexibly adaptable with perforated side and rear panels for holding accessories and tool hooks.

7. The robust, ergonomic push handle is extremely user-friendly.

Mobile Workbench With Hanging Board

Features

1. The frame prevents the tool from slipping with rubber to protect the paint.

2. Big labels, safety lock, slots can be used with spacers, adjusting the space inside the drawer freely.

3. The back panel is designed with precise square holes.

4. Precision control safety lock, sturdy and durable, low failure rate.

5. The hanging board is easy to hook for placing various types of tools

Mobile Workbench With Storage

Features

1. The hanging plate type can choose between louver hanging board and square hole hanging plate.

2. Took hook and cabinet can be customized to meet the requirements of the clients.

3. The mobile workbench with storage has a robust design. Keyhole hooks are made from steel and storage containers adopt durable polyethylene (PE) material.

4. Fast and easy assembly with simply hooking onto any perforated rear panel or placing in containers.

5. Great design diversity provides wide selections of keyhole hooks for efficient tool storage. A wide variety of colors and sizes can be available for storage containers.

Turbine Oil Application and Purification
Turbine oil is lubrication and cooling material commonly used in turbine assemblies, turbine compressors, steam and gas turbines. The oil can be of mineral or synthetic origin. The main quality parameters of turbine oil are: Viscosity corresponding to operation temperature; Resistance to oxidation; Demulsifying and water resistance; Long service life; Resistance to foam formation. During long term operation, the metal parts and components of turbine equipment are influenced by air, water and high temperature. Oxidized turbine oil gradually changes color from red to black and develops an unpleasant odor. Sludge forms in the oil, acidity grows, along with corrosion, foaming and formation of emulsions. The lubricant becomes unusable.

The turbine oil purifier adopts the latest technology, which integrates gravity, sedimentation, reunion, vacuum separation, adsorption, separation and pressure filtration into one. With super strong demulsification, dehydration, deaeration, and impurity removal capabilities.
Used turbine oil can be purified using special equipment. Yuneng manufactures the DYJC turbine oil purifier for heating and filtration of turbine oil. DYJC is equipped with oil input and output pump, a vacuum chamber, a vacuum pump, coarse and fine filters and a control cabinet. The unit is installed in a container on a trailer. It is compact and mobile; the unit can be towed to the turbine by automobile. The turbine oil purifier in the Yuneng unit is performed with vacuum treatment for higher degree of purification. Beside particulate matter, the process removes solved water and gases from the oil. The equipment operates at the rate of 4 m³/hour with materials with viscosity below 280 cSt at 50 ℃.