hetragon tm: ptfe element with hexagonal flow channels · hetragon tm: ptfe element with hexagonal...

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Hetragon TM : PTFE element with hexagonal flow channels

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Page 1: Hetragon TM: PTFE element with hexagonal flow channels · Hetragon TM: PTFE element with hexagonal flow channels for industrial columns HetragonTM PTFE elements can be used as structured

HetragonTM: PTFE element with hexagonal flow channels

Page 2: Hetragon TM: PTFE element with hexagonal flow channels · Hetragon TM: PTFE element with hexagonal flow channels for industrial columns HetragonTM PTFE elements can be used as structured

HetragonTM: PTFE element with hexagonal flow channels for industrial columns

HetragonTM PTFE elements can

be used as structured packs

for mass transfer and if neces-

sary, for energy exchange

in columns for separation of

mixtures of substances

which contain a liquid and

gaseous component.

HetragonTM PTFE elements have

flow channels arranged paral-

lel to one another and thus

ensure a homogenous distribu-

tion of the material mixture

over the entire cross-section. In

addition, HetragonTM PTFE

elements can be used as a

support plate for packings. The

product design is determined

according to the application. The

HetragonTM PTFE elements are

usually placed on a circumfer-

ential carrier ring and are

supported by a further internal

supporting structure depen -

ding on the design.

Load analysis

Test conditions:dimension HetragonTM element: 505 x 510 x 250 mmtemperature: 250°C, dwell time: 8hwidth of supporting surface: 50 mm

dimension: 505 x 510 x 50 mm; surface load: 71 kg; dwell time: 1 h

dimension: 505 x 510 x 100 mm; surface load: 210 kg; dwell time: 1 h

temperature [°C]

deflection [mm]

0

0,5

1

1,5

2

2,5

3100 150 200

600 kg

deflection of HetragonTM PTFE element: 19 mm

Page 3: Hetragon TM: PTFE element with hexagonal flow channels · Hetragon TM: PTFE element with hexagonal flow channels for industrial columns HetragonTM PTFE elements can be used as structured

Corrosion-resistant HetragonTM PTFE elements for heat exchangers in coal-fired power plants

Located just before the stack, the

REGAVO unit recovers heat

from the flue gas entering the

scrubber and then transfers

this heat to the cleaned flue gas

leaving the scrubber to provide

the gas with buoyancy to rise out

of the stack and disperse.

The REGAVO operates in relatively

low temperatures and high

levels of SO3 resulting in high

potential for sulfuric acid

corrosion. Consequently, heat

transfer surfaces are either

enamel coated or made from corro-

sion resistant materials such

as PTFE.

HetragonTM PTFE segment: Cold end heat transfer element for regenerative gas pre-heaters (REGAVO) used in flue gas desulfurization

flue gas cleaned

flue gas loaded

Turbinesteam

AirPreheater

Coal

Combustion Air FGD

REGAVOStack

SCRDeNOx

REGAVO

ESP

Boiler

Flue Gas

HetragonTM PTFE element

Page 4: Hetragon TM: PTFE element with hexagonal flow channels · Hetragon TM: PTFE element with hexagonal flow channels for industrial columns HetragonTM PTFE elements can be used as structured

HetragonTM: PTFE element with hexagonal flow channels for water purification

HetragonTM PTFE elements can be

used in water purification.

The HetragonTM PTFE elements

com prises of multiple channels

arranged parallel to each

other which serve as a sedimenta-

tion area. Thus HetragonTM

elements can be used as a carrier

body for a biological reaction

medium or for separating solids

from fluids.

Separation of fluid sediment

Example: "counter flow principle"The fluid flows upwards while the solids, due to gravity, settle on the channel wall and slide off towards the sludge funnel

mud removal

drainage

inlet

Page 5: Hetragon TM: PTFE element with hexagonal flow channels · Hetragon TM: PTFE element with hexagonal flow channels for industrial columns HetragonTM PTFE elements can be used as structured

Technical specifications of HetragonTM PTFE elements

• high resistance to corrosive media

• operating temperature up to 250°C

• resistant to permanent tempera-

ture changes

• the anti-adhesive surface allows

easy cleaning

• Flame class, UL 94: V-0

• HetragonTM PTFE elements can be

completely recycled after their use

• multifunctional applications:

good integration into existing and

new plants

• tailor-made system solutions

• HetragonTM PTFE elements can be

welded together

• high load carrying capacity —

multi-layer construction possible

with spacers

• The HetragonTM PTFE element

design is a balanced system with

regard to the flow behaviour,

the contact surface as well as the

cleaning behaviour

Calorimetric details

Advantages of HetragonTM PTFE elements

material specific heat capacity [J/g•K] thermal conductivity [W /m•K]

PTFE unfilled "white" 1.01 0.35

PTFE thermally conductive "black" 1.24 0.43

channel geometry hexagonal

height [mm] 250

distance of channel walls [mm] 14.3

channel area [cm²] 1.5

wall thickness [mm] 1.2

free cross-section [%] 83

specific surface area [m²/m³] 150

specific weight of HetragonTM "white" [kg/m³] 360

specific weight of HetragonTM "black" [kg/m³] 300

Page 6: Hetragon TM: PTFE element with hexagonal flow channels · Hetragon TM: PTFE element with hexagonal flow channels for industrial columns HetragonTM PTFE elements can be used as structured

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Technical Sales/Production HetragonTM PTFE element

Heidenheim plant | Badenbergstraße 15 | D-89520 HeidenheimPhone +49 7321 9641-0 | Fax +49 7321 9641-24 | [email protected] | www.elringklinger-kunststoff.de

Headquarters and other plants of ElringKlinger Kunststofftechnik GmbH

ElringKlinger Kunststofftechnik GmbH | Etzelstraße 10 | D-74321 Bietigheim-BissingenPhone +49 7142 583-0 | Fax +49 7142 583-200 | [email protected] | www.elringklinger-kunststoff.de

ElringKlinger Kunststofftechnik GmbH | Mönchengladbach plant | Hocksteiner Weg 40 | D-41189 MönchengladbachPhone +49 2166 9590-0 | Fax +49 2166 9590-55 | [email protected] | www.elringklinger-kunststoff.de

ElringKlinger Engineered Plastics (Qingdao) Co., Ltd. | Room 408-409, Building C, Qingdao Int. Finance Plaza 222 Shenzhen Rd, Laoshan District | 266061 Qingdao V.R. China | Phone +86 532 6872 2830 | Fax +86 532 6872 [email protected] | www.elringklinger-ep.cn

ElringKlinger Engineered Plastics North America, Inc. | 4971 Golden Parkway | Buford, GA 30518 USAPhone +1 678 730 8190 | Fax +1 770 932 2385 | [email protected] | www.elringklinger-ep.com

DQS certified according to ISO/TS 16949 (Reg. no. 002504 TS2/003) | DIN EN ISO 14001 (Reg. no. 002504 UM)

DNV-GL certified according to GMP for Equipment with Food Contact Surfaces (Reg.-Nr. 201043-2016-FSMS-ITA-DNV)

DQS MED certified according to EN ISO 13485:2012