Application Solution for Explosion-Proof Desalter Transformers in the Oil & Gas Industry

I. Functions and Application Scenarios of Explosion-Proof Desalter Transformers

The explosion-proof desalter transformer is a specialized high-voltage power supply device used in crude oil electrostatic desalting and dehydration systems. By providing a stable and adjustable high-voltage power supply to the electrode system inside the desalter vessel, it creates a controlled electric field in the crude oil, promoting the coalescence, settling, and separation of fine water droplets, thereby reducing the water, salt, and other impurity content in crude oil.

Hengfengyou Electric can customize the transformer according to the process requirements of refineries, oil fields, offshore platforms, and other oil processing projects. Customization options include transformer capacity, input voltage, high-voltage output voltage, voltage regulation method, rectification scheme, explosion-proof structure, enclosure protection, interface configuration, and installation dimensions, providing a matched high-voltage power supply solution for crude oil electrostatic desalting and dehydration systems.

Hengfengyou Electric's explosion-proof desalter transformers are suitable for:

• Crude oil electrostatic desalting and dehydration units in refineries
• Crude oil pretreatment systems
• Crude oil gathering and processing facilities in oil fields
• Offshore oil platforms and offshore processing systems
• Petrochemical and oil & gas processing projects
• New-build electrostatic desalting units
• Replacement and upgrading projects for existing desalter transformers

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II. Key Advantages of Hengfengyou Desalter Transformers

01. Specialized High-Voltage Output Design

Designed specifically for the electric field requirements of crude oil electrostatic desalting systems, the transformer can be configured with the appropriate output voltage and capacity according to the desalter vessel, electrode system, and process parameters.

02. Explosion-Proof and Harsh-Environment Adaptation

For applications in refineries, oil fields, offshore platforms, and other environments where flammable gases, oil mist, salt spray, or high humidity may be present, explosion-proof structures, protection ratings, and material configurations can be selected according to the hazardous area classification and environmental conditions of the project.

03. AC and Rectified DC Solutions

Depending on the power supply requirements of the electrostatic desalting system, Hengfengyou can provide high-voltage AC solutions or configure rectification units to provide the required high-voltage DC power supply for the desalting electrodes.

04. Project-Based Customization

Rated capacity, input voltage, high-voltage output, voltage regulation range, interface locations, enclosure structure, and installation dimensions can all be designed according to project technical specifications.

05. Support for Replacement of Existing Equipment

For existing electrostatic desalting systems in refineries and oil fields, Hengfengyou can develop replacement designs based on the original equipment nameplate, drawings, interface dimensions, and site installation conditions, while maintaining the original system interfaces and installation method as much as possible to reduce modification work.

06. Configuration for Offshore and Harsh Environments

For offshore platforms, coastal refineries, and other high-humidity or high-salt-spray environments, appropriate corrosion-resistant, sealing, and structural configurations can be adopted according to project requirements to improve equipment adaptability to complex operating conditions.

III. Standard Technical Parameters of Hengfengyou Explosion-Proof Desalter Transformers

Note: The above parameters are provided as a general configuration range. The specific rated capacity, input voltage, high-voltage output voltage, explosion-proof configuration, and other technical parameters shall be subject to the project technical specification and final approved drawings.

IV. High-Voltage Output Solutions for Desalter Transformers

According to the process design of the crude oil electrostatic desalting unit and the requirements of the electrode system, Hengfengyou can provide different types of high-voltage power supply solutions.

1. AC Desalter Transformer

The AC solution is suitable for conventional electrostatic desalting systems using an AC high-voltage electric field. The transformer converts the input voltage into the high-voltage AC power required by the desalting equipment.

Suitable for:

• Conventional crude oil electrostatic desalting units
• Refinery electrostatic desalting systems
• Replacement of existing AC desalter equipment
• Projects where modifications to the existing system need to be minimized

2. Rectified DC Desalter Solution

For electrostatic desalting systems using DC or special electric field control methods, a rectification solution can be configured according to system requirements to convert the transformer output into the required high-voltage DC power supply.

The specific rectification method, output voltage, and control interfaces can be matched according to the technical requirements of the desalting equipment manufacturer or end user.

3. Explosion-Proof and Environmental Adaptation Design

Desalter equipment is typically installed in refineries, oil fields, and oil & gas processing facilities where special industrial environmental conditions may exist. Therefore, the transformer design needs to take into account hazardous area classification, ambient temperature, humidity, salt spray, dust, and corrosive environments.

Hengfengyou can customize the following configurations according to project site conditions:

• Explosion-proof structures and explosion-proof electrical components
• Enclosure protection and sealing design
• Anti-corrosion coatings and materials
• Stainless steel or corrosion-resistant structural components
• Explosion-proof temperature monitoring components
• Explosion-proof oil level monitoring devices
• Pressure and temperature protection devices
• High-voltage incoming and outgoing interfaces
• Grounding and equipotential bonding
• Anti-corrosion configurations for offshore platforms

The specific explosion-proof rating, hazardous area suitability, and certification requirements shall be determined according to the country of the project, hazardous area classification, and final technical specifications.

V. Hengfengyou Electric Supports New Projects and Existing Equipment Replacement

Hengfengyou can provide desalter transformers not only for new refineries and crude oil processing projects, but also for the replacement and upgrading of existing equipment.

1. New Projects

Based on the process parameters, electrical schematics, and installation conditions provided by the customer, Hengfengyou can complete the design of the desalter transformer's capacity, input and output voltage, protection configuration, and mechanical interfaces.

2. Replacement of Existing Equipment

For aging desalter transformers, targeted replacement designs can be developed based on:

• Original equipment nameplate
• Original equipment technical specifications
• Overall dimensions and installation dimensions
• High- and low-voltage interface locations
• Cable connection methods
• Desalter vessel and electrode parameters
• Site photographs and installation drawings

The new equipment can be designed to match the existing system as closely as possible, minimizing on-site modification work.

VI. Typical Application Scenarios of Explosion-Proof Desalter Transformers

Refineries

Used for crude oil electrostatic desalting and dehydration upstream of atmospheric and vacuum distillation units, providing a stable high-voltage power supply to the desalter vessel.

Oil Field Crude Oil Processing

Suitable for crude oil dehydration and desalting systems in crude oil gathering stations, central processing facilities, and oil & gas processing facilities.

Offshore Oil Platforms

For offshore platforms with limited space, high humidity, high salt spray, and corrosive environments, compact and corrosion-resistant configurations can be provided according to platform design requirements.

Petrochemical Projects

Can be integrated with crude oil pretreatment and related oil & gas processing systems to provide specialized high-voltage power for electrostatic desalting processes.

VII. Why Choose Hengfengyou Explosion-Proof Desalter Transformers?

1. Engineering Customization Capability

Rather than simply supplying standardized transformers, Hengfengyou matches and designs products according to project electrical parameters, process requirements, and site installation conditions.

2. International Project Experience

Hengfengyou Electric has extensive experience in exporting transformers, switchgear, and power transmission and distribution equipment, with the capability to design products according to electrical standards and project specifications in different countries.

3. Multi-Standard Design

Products can be designed and manufactured according to relevant standards such as GB, IEC, GOST, EN, and IEEE, based on project requirements.

4. Complete Project Equipment Solutions

In addition to specialized desalter transformers, Hengfengyou can also provide oil-immersed power transformers, dry-type transformers, medium- and high-voltage switchgear, package substations, and other power transmission and distribution equipment for refinery, oil field, and petrochemical projects.

VIII. Frequently Asked Questions About Explosion-Proof Desalter Transformers

1. What is a desalter transformer mainly used for?

A desalter transformer is mainly used in crude oil electrostatic desalting and dehydration systems to provide a stable high-voltage power supply to the electrode system inside the desalter vessel. By creating a controlled electric field, it promotes the coalescence and separation of water droplets.

2. Can a desalter transformer provide high-voltage DC power?

Yes. Depending on the design requirements of the electrostatic desalting system, the transformer can use an AC output solution or be equipped with a rectification unit to provide high-voltage DC power. The specific output method needs to be determined according to the desalting equipment and electrode system parameters.

3. Can the transformer be customized according to the dimensions of the original equipment?

Yes. Hengfengyou can develop a replacement design based on the original equipment nameplate, drawings, interface dimensions, and site photographs. This is suitable for desalter transformer replacement and system upgrade projects.

4. Can desalter transformers be used on offshore platforms?

Yes. For offshore platforms with high humidity, high salt spray, and corrosive environments, corrosion-resistant, sealing, and reinforced structural designs can be provided according to project requirements.

5. Can the explosion-proof rating be customized?

The explosion-proof configuration needs to be determined according to the hazardous area classification, gas group, temperature class, and local certification requirements of the project. Hengfengyou can provide the corresponding explosion-proof structures and electrical components according to project technical specifications.

6. How is the capacity of a desalter transformer determined?

The required capacity should be determined based on the process parameters of the electrostatic desalting system, the number of electrodes, operating voltage, current requirements, and desalter vessel configuration. Customers can provide the original equipment parameters or system technical documents, and Hengfengyou can assist with equipment selection and matching.

Get a Technical Solution for Your Desalter Transformer

If you are building or upgrading a refinery, oil field, offshore platform, or crude oil processing system, Hengfengyou Electric can provide a suitable transformer solution based on your electrostatic desalting system parameters.

You can provide any of the following documents or information:

Original equipment nameplate / Technical specification / Electrical drawings / Installation dimensions / Site photographs / Desalter vessel parameters

The Hengfengyou engineering team can evaluate and confirm:

Capacity · Input Voltage · High-Voltage Output · AC/DC Solution · Explosion-Proof Configuration · Installation Dimensions · Interface Configuration

Email: hfy@hengfengyou.com