High-pressure steam pipeline insulation replacement in Shenhua Ningxia Coal Industry Group Co., Ltd.

Number of visits: Date:2017-11-14

Customer Profile

CompanyShenhua Group

Project locationShenhua Ningxia Coal Industry Group Co., Ltd.

Equipment/pipelineIndoor above-ground high pressure steam pipelines

Operation Conditions

Pipeline diameter450mm

Interior liquid temperature510

No wind

Challenges

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

2, Maintenance is difficult for aerial pipelines.

Products

DRT0610 aerogel blanket10mm thickness

Replacement Solution

7 layers of aerogel blanket DRT0610 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

450

450

Interior liquid temperature

510

510

Ambient temperature

20

20

Wind speed

m/s

0

0

Thermal conductivity of insulation material

W/(m*℃

0.049

0.020

Thickness for insulation

mm

200

70

Surface temperature of insulation

56.5

27.8

Heat loss after insulation

W/m

586.4

108.8

Energy conservation rate

 

81%

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 high pressure steam pipelines in Shenhua Ningxia Coal Industry Group Co., Ltd. was decreased by 81%.

After replacement of aerogel, overall structure of the pipelines is stronger than before.

Pictures from Project Site

 

TypeInfo: Case Studies

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