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Electrical Heat Tracing Business

Tianjin Timeast Sub-Sea Pipeline Testing & Service Limited focuses and expertise in Electrical Heat Tracing in oil and gas industry. With the professional  team, we will be able to provide a full range of EHT solutions including system design, material supply, installation and commissioning
of EHT system.
We have proven track record in Oil & Gas for PETROBRAS,PETRONAS,SHELL and NOVATEC with their satisfaction.

Heat Tracing Introduction

What is Electrical Heat Tracing?
   The heat loss of pipes and Vessels can
   be compensated by EHT output.
   The purpose of heat tracing 
﹡For freeze protection of water piping
﹡To maintain process temperature
﹡To reduce the medium viscosity
﹡To prevent gas liquefaction
﹡To keep warm

Electric Heat tracing Design

   Design parameters of electric heat tracing:
﹡Tm-Maintenance Temp. : _________
﹡Te-Expose Temp. :_________
﹡ Max Ambient Temp. : ________
﹡Ta-Mini Ambient Temp. : ________
﹡Limited Temp. of Process:________
﹡Insulation Materials:________
﹡Insulation Thickness:________
﹡Diameter of Pipe:________
﹡Length of Pipeline:________
﹡Gap between Supports:________
﹡Number of Valves:________
﹡Hazardous Area :________
﹡Distribution Panel and
     Circuit Breakers Size :________

Thermal Design- Pipe Heat Loss Calculations and Heating Cable Selection
►Pipe Heat Loss Calculations
﹡Step 1 Calculate temperature differential △T = TM – TA
﹡Step 2 Calculate the pipe heat loss.
    From design manual to find the base heat loss of the pipe.
    (The indoor heat loss will be multiplied 0.9)
﹡Step 3 Compensate for insulation type.
    Multiply the base heat loss of the pipe from Step 2 by the insulation compensation factor from design manual to get the total heat loss per meter of pipe ,the purpose of EHT is to compensate the heat loss.
► Heating Cable Selection
﹡The heating cable with thermal output greater than the heat loss at the pipe maintenance temperature.
﹡The Maximum intermittent exposure temperature of pipe dose not exceed the maximum allowable heating cable sheath temperature.
► Determing the Total Length of Heating Cable
﹡Calculate the total length of heating cable for the piping.
﹡Calculate the total length of heating cable for the valves.
﹡Calculate the total length of heating cable for the pipe 
    supports.
﹡Calculate additional heating cable for component
    installation.
﹡Add all the lengths together.


Installation & Service

EHT Installation
Procedure of EHT Installation
●Design Drawin
gs               
●Preparatory Work                   
●Installation of EHT           
●Accessories Installation 
●Thermostat Installation
●Insulation Installation
●Testing          
●Testing & Record    

Distribution Installation & Commissioning

    Timeast will be able to provide a full range of service including engineering design, technical support, maintenance, personnel training, and issuing certificate of Electrical Heat Tracing installation.
Engineering Design                   ●Personnel Training                              
Technical Service                      ●Maintenance