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INDUSTRY SOLUTION · S1

Pipeline heating,
to the duty.

Heat-up, trace heating and temperature holding for process media. Fix medium, pressure, corrosivity and Ex requirements first.

See the solution path ↓Send your spec →
  • Medium and phase
  • Mass flow (kg/h)
  • Inlet / target temperature
  • Working pressure (MPa)
  • Ex rating and zone classification
  • Connection standard and installation direction

SCENARIO

Typical duty
Read the process, then the equipment

Feed gases, process liquids, residual oil, waxy or viscous media have to be heated continuously or held at temperature inside the line, so they do not solidify or thicken and upset transport and reaction. Such sites often combine pressure, corrosive media and hazardous areas, which set hard requirements on construction, materials and electrical safety.

Complex media

Gas, liquid, high viscosity or particle-loaded media set the velocity, surface load and material choice. Handled badly, they lead to coking or thermal decomposition.

Pressure and sealing

Line pressures span a wide range. Flanges, shells and seals must be checked against design pressure, with clearance left for maintenance.

Explosion safety

Where flammable zones are involved, zone classification, Ex protection level and temperature class must be fixed, with over-temperature and low-flow interlocks.

Control accuracy

Chemical processes are sensitive to ramp rate and fluctuation, so staged heating, sectioned temperature measurement and PLC control are normally required.

SOLUTION PATH

From duty to equipment,
four steps

  1. 01

    Confirm medium and duty

    Fix the medium, phase, density, specific heat and viscosity, and whether solids or corrosive components are present, then confirm flow, inlet temperature, target temperature and working pressure.

  2. 02

    Calculate the heat duty

    Compute theoretical power from mass flow and temperature rise, then add line heat loss, insulation condition and start-up margin to set total power and stage grouping.

  3. 03

    Fix the construction

    Choose horizontal, vertical or circulation type from the available space and line routing, and define flange standard, port direction and access position.

  4. 04

    Safety and controls

    Select Ex electrics and temperature class for the zone, and provide over-temperature protection, flow interlock, remote measurement and automatic control.

RECOMMENDED EQUIPMENT

Equipment directions

Ex-proof pipeline heaterChemical lines in explosive atmospheres↗Circulation pipeline heaterContinuous heat-up of circulating and process water↗Vertical pipeline heaterRestricted floor space, vertical line tie-in↗

FAQ

Common questions

01What if the process medium cakes on the elements?+

Coking usually comes from excessive surface load or insufficient velocity. At selection stage keep the element surface load down, guarantee a minimum medium velocity, avoid dry firing, and add low-flow and over-temperature interlocks where needed.

02Who confirms the Ex rating?+

Zone classification and Ex rating are normally issued by the design institute or the operator’s safety department. For selection we need the zone (for example Zone 1 / Zone 2), gas group and temperature class, and the Ex construction is matched to them.

03Can signals go to a DCS?+

Yes. Measurement and control signals support 4–20 mA or fieldbus into DCS / PLC, giving sectioned temperature display, alarm interlocks and remote start-stop.

INQUIRY PREP

Come prepared,
decide faster on Chemical Pipeline

Have these parameters ready — they feed directly into model selection, power sizing and mechanical design review.
Send your spec ↗

Other solutions

S2Waste gas & VOC treatment heatingWaste-gas pre-heating and duct boosting before catalytic oxidation. Fix air volume, rise, pressure drop and fan interlocks.S3Industrial drying & hot airStable hot air for drying rooms, lines and fresh-air systems. Judge velocity, temperature uniformity and staged control.S4Reactor thermal-oil temperature controlIndirect heating and constant control through a thermal-oil loop. Fix the temperature band, circulation rate and heat consumers.S5Tank & liquid heatingLiquid heat-up through flanged immersion elements or an external loop. Watch level, scaling, material and surface load.S6Hazardous-area electric heatingHeating for flammable or explosive atmospheres: zone, Ex level, temperature class, isolation and over-temperature protection.