Steam pipeline insulation replacement in Chongqing Changyuan Chemical Group Limited

Number of visits: Date:2017-11-14

Customer Profile

CompanyChongqing Changyuan Chemical Group Limited

Project LocationChongqing Changyuan Chemical Group Limited

Equipment/pipelineAbove-ground steam pipeline

Operation Conditions

Pipeline diameter273mm

Interior liquid temperature200

Wind speed1m/s

Pipeline length350m

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.

3, Maintenance is difficult for aerial pipelines.

Products

Aerogel blanket DRT061010mm thickness

Solution:

2 layers of aerogel blanket DRT0610 with single-face aluminum foil, tightly wrapped with aluminum foil glass fiber fabric.

Data Comparison

Insulation Solution

 

Silicate compound wool

Aerogel blanket

Pipeline diameter

mm

1524

1524

Interior liquid temperature

600

600

Ambient temperature

23.4

23.4

Wind speed

m/s

1

1

Thermal conductivity of insulation material

W/(m*℃

0.049

0.020

Thickness for insulation

mm

200

70

Heat dissipation area

m2

1.234

0.983

Surface temperature of insulation

97.5

44.7

Heat loss after insulation

W/m

447.8

199.3

Energy conservation rate

 

55.4%

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, heat loss of the pipelines in Chongqing Changyuan Chemical Group Limited was decreased by 55.4%.

The long service life of aerogel materials helps to save costs for maintenance and replacement, enabling stable and safe operation.

Thin insulation profile allows design in confined space.

Pictures from Project Site

 

TypeInfo: Case Studies

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