STEPPED NATURAL-CONVECTION CONDENSER

WIPO Patent Application WO/2024/031318

A1

A stepped natural-convection condenser, comprising: a stepped heat pipe (1), a stepped steam pipe (2), a water collecting curved pipe (3), a condensed water collecting chamber (4), and a heat insulating housing (5); the stepped steam pipe (2) is coaxially sleeved outside the stepped heat pipe (1) to form a stepped, sleeved pipeline (6), and the pipe diameter of the stepped heat pipe (1) and the pipe diameter of the stepped steam pipe (2) satisfy a specific formula; cold water and steam flow in the stepped heat pipe (1) and the stepped steam pipe (2), respectively, and heterogeneous-surface, all-natural convection heat transfer is formed inside and outside; layers of stepped, sleeved pipelines (6) are connected in series in a stepped, staggered manner, and are placed on an inclined flat plate (8) having a given gradient, the gradient and a cold water flow rate satisfying a given formula; every two layers of stepped, sleeved pipeline (6) are connected using a detachable, sleeved U-shaped pipe (7) and the water collecting curved pipe (3), the shape of the water collecting curved pipe (3) satisfying an elliptical rotating body equation; an outlet of the condensed water collecting chamber (4) is provided with an air valve; and the stepped, sleeved pipeline (6) and the condensed water collecting chamber (4) are disposed in the heat insulating housing (5).

SUN ZHILIN (CN)
ZHAI CHAOQUN (CN)
SUN YIZHI (CN)

PCT/CN2022/111090

February 15, 2024

August 09, 2022

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UNIV ZHEJIANG (CN)

F25B39/04; F25B39/02; F28D7/14; F28F17/00

CN111220004A	2020-06-02
CN102721299A	2012-10-10
CN103033075A	2013-04-10
CN102865762A	2013-01-09
CN111998700A	2020-11-27

HANGZHOUN QIUSHI PATENT OFFICE CO., LTD (CN)

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