Pinfin drivepipe type reinforced heat transfer element
A heat transfer enhancement and pin-fin technology, applied in heat transfer modification, fixed tubular conduit assembly, heat exchange equipment, etc., can solve the problems of increased fluid turbulence, adverse effects of heat transfer, uneven flow distribution, etc., to achieve increased Effects of turbulence, reduction of heat transfer and flow dead zone, and increase of heat transfer area
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[0024] Hereinafter, the present invention will be described in more detail with examples in conjunction with the accompanying drawings:
[0025] Combine Figure 1~4 , A pin-fin sleeve type enhanced heat transfer element, composed of pin-fin tubes, dual-path joints and groove sleeves. The pin-fin tube is processed to be intermittently placed inside the outer sleeve. The two ends of the pin-fin tube are connected to the outer sleeve by a double-channel joint. After the pin-fin tube, outer sleeve and double-channel joint are welded, the outer sleeve is in the pin-fin tube A semicircular groove is rolled at the position without pin fins.
[0026] The pin-fin tube is an intermittent pin-fin tube. The pin-fin is directly cut and processed on the base tube. There is no contact thermal resistance between the pin-fin and the base tube. The pin-fin-free area is located with the pressing groove of the outer tube The location corresponds.
[0027] The initial state of the grooved sleeve is a ...
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