La description
Machining of surface porous
tube for boiling heat transfer properties
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Extensive use of
liquid in the field of oil refining and petrochemical boiling heat
transfer process and equipment, the equipment investment and cost
of energy is very considerable.Therefore,
improving the boiling heat transfer efficiency to improve the
technical level of equipment, reduce energy consumption, reducing
equipment volume and stable long term operation, has important
practical significance.In ***3, the
company independently developed porous surface machining pipe - MH,
(patent number: ZL**********5, X) and cooperation with tianjin
university school of mechanical engineering department of thermal
engineering, a variety of specifications for boiling heat transfer
performance test of MH pipe, as well as industrial light pipe and
contrast test of t-shaped fin tube.Results show that
single tube and tube bundle of MH tube of boiling heat transfer
performance, not only is far better than the ordinary industrial
light tube, than the current widely used T tube fin strengthening
also have greatly improved.
Porous
surface machining pipe - MH enhanced boiling heat transfer is the
main way of theÂ
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(1) to strengthen
the surface of the lateral surface of the convective heat
transferÂ
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(2) to strengthen
the outside air bubbles away the gasification of latent
heatÂ
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(3) strengthening
the internal porous surface channel and liquid film
evaporation.
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The geometrical
characteristics of the porous surface is narrow, groove depth,
bidirectional hole spacing and density of cavity determines the
reinforcement result.After lots of
tube type geometry size of comparative screening test, are
recommended for industrial application of optimum tube type of MH -
0.3 type.Test results show
that porous surface strengthening MH - 0.3 type machining tube
(water and ethanol as boiling medium), the intensity is equal to *0
exponent (4)
~ 1.7 * *0 exponent (5) W/m2 (square) within the scope of the
boiling heat transfer coefficient respectively, 2 ~ 4 times of
ordinary industrial light tube, is now commonly used industrial
t-shaped fin tube of 1.5 to 2.0 times.MH
tube compared with t-shaped fin tube, its advantage lies in shallow
depth and processing surface groove, but because of the surface
porous, makes heat transfer increased significantly, while
maintaining the strength of the pipe with good.
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At present the
product has been applied in petrochemical industry tens, deeply
user welcome.Horizontal
reboiler composed of MH tube is a kind of high efficiency, low
investment of new energy-saving equipment.Very suitable for
new and potential in transformation in petrochemical units,
provides a new way for energy conservation.
| Pays: |
China |
| N ° de modèle: |
-
|
| Prix FOB: |
3 ~ 3.5 / Kilogram ( Negotiable ) (Negotiable)
Obtenir le dernier prix
|
| Localité: |
- |
| Prix de commande minimale: |
3 per Kilogram |
| Commande minimale: |
1500 Kilogram |
| Packaging Detail: |
Wooden case |
| Heure de livraison: |
20 days |
| Capacité de Fournir: |
350 Ton per Month |
| Payment Type: |
- |
| Groupe de produits : |
tube for heat exchange system
|
