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Your present location:HomeProductsUHMWPE pipes > UHMWPE Pipe in Thermal Power Plant
  • Product name: UHMWPE Pipe in Thermal Power Plant
  • item No: 1015

 

    

 

 

In ash-sluicing system of thermal power plant, the scaling are widespread in pipe inner wall, especially within 100 metres of the entrance, the scaling and corrosion is more serious. Ash pipe besides scaling, wear is also more serious, Use two years grinding leakage will occur, bend parts is more outstanding. UHMWPE pipe have good high self-lubrication and not adhesion, can prevent the scaling,and no need pickling pipe. Its excellent wear resistance, corrosion resistance, and can greatly prolong the service life, save maintenance costs, improve the economic benefit.

    

UHMWPE pipe Specification Weight Table

 

Characters of UHMWPE Pipe

 

    Abrasion resistance – UHMWPE pipes have excellent abrasion resistance providing long life in abrasive slurry applications.

    5x lower surface roughness (ISO 8295)

    Increased temperature capability (particularly in the lower range), capable of -70 to +80 deg C operation

    Comparable elongation performance

    Anti-aging agent reduce UV degradation by comparison and otherwise increases design life

    Colourless, odourless and non-toxic

    Formed flanges, allowing for clean alignment. Mn16 inserts used at flange end to reduce turbulence down the pipe or bend

    Much higher corrosion resistivity, comparable to Teflon

    Higher tensile and yield tolerances

    Adders can be provided that make UHMWPE flameproof (allowing for minimal degradation in environments where this is a factor, UHMWPE will still ignite at 300 deg C, but will immediately self-rectify)

    Lighter and more durable, allowing for heavily reduced installation costs as large excavation and crane equipment will no longer be required

    Unlike other materials, UHMWPE is self-lubricating (part of why it is used as a ball material for hip joint replacement)

        All this allows UHMWPE to improve on ANY process currently utilising HDPE and most that include Steel

 

Product is checked and re-checked at every stage to ensure fault-free performance

                      

 

 

Technical comparison of UHMWPE and other material

 

Item

Test Method

Unit

Uhmwpe pipe

Hdpe pipe

Steel pipe

Viscosity-average

Molecular Weight

ISO1628-3

104g/mol

300-1050

50

--

Approx Melting

Temperature

ISO11357.3

136

1129

1410

Water Absorption

ISO62-1999

%

0.01

0.01

--

Coefficient of liner thermal expansion

ISO11359-2

10-4/℃

1.5

1.2

0.17

Density

ISO1183-1-2004

g/cm3

0.935-0.945

0.940

7.8

(0.45Mpa)

Head deformation tempat

ISO75

85

71

1230

Tensile strength

ISO527

Mpa

39

25

550

Yield strength

ISO527

Mpa

≥22

20

≥245

Tensile elongation

ISO527

%

≥250

≥350

20

Gap beam impact

Strength

ISO179

KJ/m2

No fracture

27

No fracture

Rockwell hardness

ISO2039-2

R

40

33

45(C)

Friction coefficient

ISO8295

--

0.05-0.11

0.28

0.58

Mortar wearindec

--

--

1

10

7

Scaling

--

--

No scaling

Slight

Heavy

Corrosion resistance

--

--

excellent

Common

Bad

 

         

 

         

 

Mine Industrial: mineral mud conveying, high pressure water supply, gas supply pipeline underground coal mine.

Electric Power System: fly ash conveying of power plant, chemical water cycle and sulfur removal system 

Coal Mine Industry: coal powder/ pulverized coal,coal water slurry transportion, mine air supply, ventilation and drainage systems , and the desulphurization system

Chemical Industry: transmission of high corrosive medium, like strong acid, strong alkali, etc and conveying of bittern, salt slurry, crude salt of salt chemical 

Oil exploitation:transportation of crude oil and natural gas, waste water reinjection

Metallurgy Industry: conveying of coke powder, mineral powder, pulp and oil refining slag   

Dredging Projects: dredging work, sediment transportation of the river, lake, sea port, wharf, etc 

Marine Engineering: conveying of seawater, fresh water in desalination process

 
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