Stainless steel corrugated heat transfer tube, manufacturing method thereof, and absorption refrigerating machine

Abstract

The stainless steel corrugate heat transfer tube of the present invention comprises: a stainless steel tube made from stainless steel in a hollow shape with a welding bonding unit formed to be extended in a longitudinal direction; and a plurality of pins formed to protrude from an outer circumferential surface of the stainless steel tube. The stainless steel tube has ridges successively formed in a spiral shape on an inner circumference to protrude to the inside. The height of the ridges is 0.031 times greater than the maximum outer radius of the stainless steel tube where the pins and the ridges are formed and 0.084 times smaller than the maximum inner radius of the stainless steel tube where the pins and the ridges are formed. Since the pins and the ridges are formed as one body with the stainless steel tube, the structure is simple, and heat transfer performance and durability are high.

Description

technical field [0001] The invention relates to a stainless steel corrugated heat transfer tube, a manufacturing method thereof, and an absorption refrigerator, in particular to a corrugated stainless steel corrugated heat transfer tube, a manufacturing method thereof, and an absorption refrigerator. Background technique [0002] Generally, the heat transfer tube is a heat transfer tube for transferring heat between fluids flowing inside and outside the tube, and may be in the shape of a straight tube or a curved tube. [0003] The heat transfer tube can be arranged inside a heat exchanger such as a condenser or an evaporator, and can exchange heat between the first fluid outside the heat transfer tube and the second fluid passing through the heat transfer tube. [0004] The heat transfer tubes can be installed in absorption refrigerators, vapor compression refrigerators, boilers, and the like. [0005] It is preferable that the heat transfer tube provided in the absorption...

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Problems solved by technology

[0009] The heat exchange tubes of stainless steel in the prior art have the problem of a large number of parts and a complex structure due to the first heat transfer tube, the second heat transfer tube, and the third heat transfer tube of stainless steel

[0010] The heat exchange tube manufacturing method of stainless steel in the prior art includes a plating layer forming process for forming a copper plating layer on the second heat transfer tube, and a tube expansion process for assembling the first heat transfer tube and the second heat transfer tube, so there is The problem that the manufacturing process is complicated and increases the cost

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