Insulation replacement of collecting pipe of heating furnace in SINOPEC Jinan Refinery

Number of visits: Date:2017-11-14

Customer Profile

Company SINOPEC Jinan Branch Company

Project locationJinan refinery

Equipment/pipeline Collecting pipe of heating furnace

Operation Conditions

Pipeline diameter355mm

Interior liquid temperature480

Wind speed1m/s

Pipeline length110m

Challenges

1, Thermal bridges associated with pipe racks must be stopped in order to further minimized heat loss.

2, Water-proof performance must be improved.

Products

Aerogel blanket DRT061010mm thickness

Aerogel blanket DRT0606 6mm thickness

Solution

5 layers of aerogel blanket DRT0610 and 1 layer of aerogel blanket DRT0606 with single-face aluminum foil, tightly wrapped with aluminum foil glass fiber fabric

Data Comparison

Insulation Solution

 

Aluminum Silicate wool

Aerogel blanket

Pipeline diameter

mm

355

355

Interior liquid temperature

480

480

Ambient temperature

23

23

Wind speed

m/s

1

1

Thermal conductivity of insulation material

W/(m*℃

0.049

0.020

Thickness for insulation

mm

150

56

Surface temperature of insulation

46.23

35.27

Plus or minus

 

Cracks, collapse and heat leakage from gaps happen, uneven insulation structure

Even insulation structure, no heat leakage from gaps

 

Benefits

After replacement of aerogel, surface temperature of insulation drops by 13, overall structure of the pipelines is stronger.

Pictures from Project Site

Before replacement

 

After replacement

TypeInfo: Case Studies

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