Oil storage tank coil heating
Transfers heat through existing or project-selected coils to help maintain stored oil temperature.
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Skid-Mounted Electric Circulation Heating System
Packaged circulation heating
The Skid-Mounted Electric Circulation Heating System combines an electric heater, circulating pump, make-up water tank and control cabinet on a common base. It supplies heated circulating water to oil storage tank coils or radiator circuits, then reheats the returning water to maintain the required heat supply.
Designed for well sites and oilfield facilities, this packaged electric heating skid can serve locations with limited fuel-gas availability. XGTHERMAL coordinates the heater, pump, piping and controls around the connected heating load. In tank-coil service, the circulating water transfers heat to the stored oil through the coil wall.
Circulating Heat Supply
Heated water supplied to tank coils or radiators and returned for reheating
Heater + Pump + Tank
Heating, circulation and make-up water equipment integrated on one base
Coordinated Controls
Temperature regulation linked to pump operation, flow and water level
Typical applications
Built for tank coils and circulating-water heating.
This system is used where heat must be delivered through a circulating-water circuit. The connected tank coils, radiators or heating branches determine the required duty, supply temperature, circulation flow and pump head.
Single-well tank heating
Provides a packaged heat source for well-site tanks served by a circulating-water circuit.
Sites with limited fuel gas
Offers an electric heating option where fuel gas is unavailable or insufficient and site power is suitable.
Radiator and facility heating
Supplies heated water to compatible radiator circuits at oilfield facilities.
Existing heating-circuit upgrades
Integrates heating and circulation equipment for retrofit projects after reviewing existing coils, piping and power capacity.
Heating challenges
Match the heat source to the whole circuit.
A heater alone does not establish a working heat-supply system. The pump must move sufficient water through the external circuit, the connected coils must transfer the heat, and the controls must coordinate temperature, flow and water level. These requirements are reviewed together.
Tank coils and radiators need the right water temperature and flow to deliver the required heat.
Heating power, circulation flow and pump head are matched to the connected load and piping resistance.
Pump failure, low flow or low water level can interrupt heat delivery and cause abnormal heater temperatures.
- Electrical capacity and the connected coil or radiator duty set practical limits on package selection.
- Water quality, scaling tendency, insulation and winter freeze protection are reviewed for the circulation circuit.
- Pump and heater sequencing, expansion allowance and system pressure protection are defined together.
Engineering design
One package, coordinated with your supply and return circuit.
The circulation pump moves water through the electric heater and out to the connected heating circuit. After releasing heat through tank coils or radiators, the water returns to the skid. The make-up water tank supports replenishment, while expansion, venting and pressure protection are selected for the final circuit arrangement.
- Pump flow and head selected from the complete circuit requirements
- Make-up water tank arrangement and liquid-level monitoring matched to the circuit
- Heater, piping, valves, instruments and control equipment assembled on a common skid
- Supply and return connections, electrical feed and site signals defined during engineering
Control and protection
Coordinate circulation, heating and protective shutdown.
The control system coordinates circulation and heating rather than treating them as separate devices. Heating is enabled only when the specified operating conditions are satisfied. Automatic temperature control and alarm reporting support reduced routine operator intervention, with inspection and maintenance still required.
Supply-temperature control
Supply-water temperature feedback regulates heat input against the circuit setpoint.
Pump and heater sequencing
Circulation is established before heating is enabled; stop and cooldown sequences follow the selected design.
Low-flow and low-level protection
Insufficient circulation or water level can inhibit heating and initiate an alarm or shutdown.
Independent temperature and electrical protection
High-limit temperature protection, pump overload and electrical-fault trips complement normal control. Pressure protection is selected for the complete circuit.
Engineering data
Specifications
Specifications are configured to your heating circuit. The system pressure rating is determined by the pump, tank, piping and other pressure-containing components.
| Specification Parameters | Specification Details |
|---|---|
| Rated Voltage | AC 380 V, 50 Hz (customizable) |
| Rated Power | Up to 500 kW |
| Inlet/Outlet Specification | Custom supply / return connections |
| Control Mode | PLC / microcontroller / digital controller (optional) |
| Alarm Mode | Over-temperature, over-pressure, low flow, low water level and electrical faults |
| Design Pressure | Project-specific system rating |
| Control Cabinet | Explosion-proof / non-explosion-proof |
| Protection Class | IP65 |
| Explosion-Proof Grade | Exdb IIB T1~T6Gb Exdb IIC T1~T6Gb |
| Standards and Certification Area | Reference / Route | How XGTHERMAL Supports It |
|---|---|---|
| Explosion-proof design basis | IEC 60079 / GB/T 3836 | Design reference for applicable heater, motor, terminal enclosure and hazardous-area electrical components. |
| EU / international Ex certification | ATEX / IECEx | Project-specific certification route can be supported when required by the destination market and final hazardous-area classification. |
| Eurasian market access | EAC / TR CU 012/2011 | Certification and technical documentation support can be coordinated for Russia, Kazakhstan and other EAEU destinations. |
| Oil & gas procurement documents | IOGP JIP33 S-723 Electrical Process Heaters | JIP33-aligned data sheets, inspection and test plans, vendor document register and technical query response can be prepared for EPC review. |
| Pressure boundary | ASME BPVC Section VIII / PED 2014/68/EU | Applicable pressure components and documentation are reviewed against circuit conditions and the destination requirements. |
| Electrical cabinet and machine safety | IEC 61439 / IEC 60204-1 | Control cabinet layout, component selection, wiring practice and electrical protection can be configured around project requirements. |
| Functional safety | IEC 61511 / SIL | SIL-rated safety loop design can be coordinated when independent shutdown or safety instrumented functions are specified. |
| Circulating-fluid compatibility | Project fluid specification | Heater, pump, tank, seal and valve materials are reviewed for the circulating fluid and water quality. |
| Inspection and handover package | EN 10204 3.1, NDT reports and FAT records | Material certificates, pressure test records, non-destructive testing reports, electrical test records and factory acceptance test files can be supplied. |
| Ingress protection | IEC 60529 | IP65 / IP66 enclosure protection can be selected for outdoor oilfield stations and harsh operating environments. |
Certification availability depends on final equipment configuration, destination market requirements, hazardous-area classification and third-party conformity assessment. Standards listed here describe available engineering and documentation support, not a blanket certificate for every configuration.
| Name | Origin/Brand | Remarks |
|---|---|---|
| Heater Body | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Heater pressure boundary and circulation connections |
| Heating Element | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Material and surface heat load selected for the circulating fluid |
| Control Cabinet | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Explosion-proof or safe-area cabinet available |
| Electrical Components | Delixi, Chint or project-approved equivalents | Temperature control, pump starter and electrical protection components |
| Instruments | Chuanyi, Anhui Tiankang, Beijing Tiantai or project-approved equivalents | Supply / return temperature, circulation flow, water level and pressure monitoring |
| Circulating Pump | Project-selected supplier | Flow, head and seal arrangement matched to the circuit |
| Make-up Water Tank | Included in the package | Capacity, connections and level monitoring selected by project |
| Skid Base and Piping | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Common base with supply / return and maintenance interfaces |
| Valves | Zhejiang Gong'ao, Zhejiang Huisheng or approved equivalents | Isolation, drain and other circuit valves as specified |
Operator references
One of China’s Top-Tier Electric Heating Suppliers for Oil & Gas Projects
XGTHERMAL has supplied electric heating systems for projects connected with CNPC / PetroChina, PipeChina and Sinopec. In China’s petroleum and petrochemical sectors, qualified heater suppliers must pass technical review, explosion-proof compliance checks, safety documentation review and field performance verification.
This project record places XGTHERMAL among the specialist electric heating manufacturers trusted for demanding oil and gas applications. Redacted cooperation records, contract references or project supporting materials can be provided for qualified procurement discussions.
Custom engineering
Custom engineering around your operating conditions.
Share the heating load, supply and return temperatures, circuit layout and site requirements. XGTHERMAL can configure the heater, pump, tank and controls as a coordinated package.
- Process medium Circulating water properties, water quality and freeze-protection requirements.
- Mechanical interface Supply / return connections, skid footprint, piping route and maintenance access.
- Site safety Hazardous-area classification, IP protection, grounding and interlock requirements.
- Controls Temperature setpoints, pump sequencing, alarms and local / remote operation requirements.
