Kerosene Vapor Phase Drying Equipment (VPD) For Big Power Transformer

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Kerosene Vapor Phase Drying Equipment (VPD) For Big Power Transformer

Name: Kerosene Vapor Phase Drying Equipment (VPD) For Big Power Transformer
Brand: CANGZHOU KENUO INTERNATIONAL CO., LTD.
Price: 10000 USD
Availability: InStock

Price 10000 USD ($)/ Unit

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MOQ : 1 Unit

Kerosene Vapor Phase Drying Equipment (VPD) For Big Power Transformer Specification

Heating Capacity
Up to 2000 kW

Condition
New

Power Source
Electric / Diesel

Heating Method
Kerosene Vapor Phase Heating

Accuracy
1C

Control Mode
Fully Automatic PLC Control

Type
Kerosene Vapor Phase Drying Equipment (VPD)

Model
VPD-BigPower-200

Internal Size
Suitable for large power transformers, up to 200 MVA

External Size
Customized as per transformer size requirements

Volume
Customized, for transformers up to 200 MVA

Air Flow
Adjustable, up to 15000 m/h

Temperature Range
Ambient to 135C

Material
High-grade Alloy Steel and Stainless Steel

Dimension (L*W*H)
Customized as per project

Power
Approx. 150 kW (Control Panel); Main heating 2000 kW

Voltage
380V/415V, 3 Phase, 50 Hz/60 Hz

Surface Finish
Industrial anti-corrosion paint

Usage Environment
Indoor or sheltered outdoor installation

Application
For oil-immersed big power transformer insulation drying

Kerosene Vapor Consumption
Approx. 30~80 kg per cycle (depending on transformer size)

Drying Cycle Time
24 to 48 hours per large transformer

Vacuum Level
0.5 mbar absolute or better

Safety Features
Over-temperature protection, Emergency shut-off, Pressure relief valves

Automation Level
Programmable logic controller (PLC) with touchscreen HMI interface

Control System
Remote monitoring and data acquisition compatible

Optional Features
Energy recovery system, Customized doors/ports, Data logging system

Kerosene Vapor Phase Drying Equipment (VPD) For Big Power Transformer Trade Information

Minimum Order Quantity
1 Unit

Supply Ability
10 Units Per Day

Delivery Time
60 Days

About Kerosene Vapor Phase Drying Equipment (VPD) For Big Power Transformer

KEROSENE VAPOR PHASE DRYING EQUIPMENT

Description

Kerosene vapor phase drying equipment (KVPD) is mainly used for drying bodies for 110KV and more super high voltage transformer and reactors, etc. The basic principle is that: liquid kerosene is evaporated by heating. High temperature kerosene vapor go into the vacuum tank and attach the workpiece, it will condense and release latent heat of condensation (about 306.6KJ/KG), and the workpiece will be heated. Condensed kerosene will be collected and transmitted to the evaporator to be heat again. In this way, workpiece will be heated continuously to evaporate the water. Water vapor shall be exhausted under vacuum condition. In the end workpiece shall be complete dried.

Process Features:

Kerosene vapor as heating media which can convective heat and release heat by condensing. The condensing will be more acute at lower temperature, so the workpiece temperature can be uniform
After condensing the liquid kerosene will cover the surface of workpiece and exchange heat. So the heat efficiency is much high
Due to saturation pressure of kerosene is far less than that of water but higher than transformer oil, kerosene can be evaporated quickly without effecting diffusion coefficient of water at high vacuum condition
Heating is under vacuum without oxygen so the insulation materials will not be aged. At the same time the partial pressure of water vapor will be increased to 98000Pa, so the water evaporation will be faster
Condensed kerosene is easily infiltrated into the workpiece to accelerate the thermal conductivity and to make deep temperature uniform
Kerosene is a very good cleaning solvent. It can clean the workpiece. This is the special feature of KVPD. So KVPD is very suitable for transformer repairing.

Advanced PLC and Touchscreen HMI Control

The VPD-BigPower-200 features a state-of-the-art programmable logic controller (PLC) system paired with an intuitive touchscreen human-machine interface. This ensures user-friendly operation, enabling automated process management, accurate parameter control, and real-time remote monitoring. The control panel facilitates easy adjustments and supports data acquisition and logging, enhancing analysis and workflow efficiency.

Reliable Safety and Customizable Application

Engineered for demanding industrial use, the unit integrates over-temperature protection, emergency shut-off, and pressure relief valves, safeguarding both equipment and personnel during operation. Its modular design allows for customization in size, doors, and ports, accommodating transformers up to 200 MVA. A durable surface finish with industrial anti-corrosion paint ensures long-term reliability and compliance with rigorous standards.

FAQs of Kerosene Vapor Phase Drying Equipment (VPD) For Big Power Transformer:

Q: How does the kerosene vapor phase drying process work for large transformers?

A: The system generates controlled kerosene vapor which permeates the insulation material of the power transformer inside a vacuum chamber. This method efficiently removes moisture, ensuring deep and uniform drying of the insulation. The process operates at a vacuum level of 0.5 mbar absolute or better, using adjustable air flow and high heating capacity to optimize moisture extraction.

Q: What are the benefits of using VPD-BigPower-200 for transformer insulation drying?

A: This equipment provides rapid and thorough drying, reducing cycle time to 2448 hours per large transformer. With automated PLC control, accurate temperature management, and advanced safety mechanisms, users achieve enhanced insulation quality, improved operational reliability, and extended transformer service life. Energy recovery options further promote operational efficiency.

Q: Where can this kerosene vapor phase dryer be installed and operated?

A: The VPD-BigPower-200 is suitable for installation in indoor settings or sheltered outdoor environments. Its robust construction and anti-corrosion surface finish cater especially to industrial sites requiring heavy-duty operation, with flexible sizing to accommodate project-specific transformers.

Q: When should the VPD-BigPower-200 be used during transformer maintenance or manufacturing?

A: This equipment is employed during the critical insulation drying phaseeither as part of new transformer manufacturing or for maintenance and refurbishment of existing large power transformers. Prompt application after insulation placement or oil extraction is essential for optimal results.

Q: How is the system controlled and monitored for safe operation?

A: Operation is fully automated through PLC control, accessible via a touchscreen HMI panel. User settings and real-time monitoring are supported, while remote data acquisition and logging provide comprehensive oversight. Key safety featuresincluding over-temperature sensors, emergency shut-off, and pressure relief valvesminimize operational risks.

Q: What is the typical kerosene vapor consumption per drying cycle and how does transformer size affect it?

A: Kerosene vapor consumption ranges from approximately 30 to 80 kg per drying cycle, depending on the size and capacity of the transformer being processed. Larger transformers closer to 200 MVA require higher vapor quantities to ensure effective and uniform drying.

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