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本期论文广场栏目中,U形管式换热器换热管排列形式选择一文,分析了换热管不同的排列形式对换热器制造成本及换热效率的影响,指出当换热管采用正三角形布管时,选择30°正三角形排列形式的结构,可以降低换热器制造成本,提高换热效率;当换热管采用正方形布管时,为了提高换热效率,应选择45°转角正方形排列形式的结构。海洋平台间接电加热器控制系统设计、基于气柱声学模
In the article column of the essay, the paper discusses the arrangement of heat exchange tubes of U-tube heat exchanger, analyzes the influence of different arrangement of heat exchange tubes on the manufacturing cost and heat transfer efficiency of heat exchanger, When the tube is in the shape of a regular triangle, the structure of 30 ° regular triangle arrangement is selected, which can reduce the manufacturing cost of the heat exchanger and improve the heat exchange efficiency. When the square tube is used for the heat exchange tube, in order to improve the heat exchange efficiency, a 45 ° rotation angle Square arranged in the form of the structure. Indirect electric heater control system design for offshore platform based on gas column acoustic model