METHOD FOR IMPROVING HEAT-TRANSFER EFFICIENCY OF HEAT EXCHANGER

• Main Authors: WATANABE, Kazuya, YOSHIKAWA, Tadayoshi, KOIZUMI, Masakazu
• Format: Patent
• Language: English; French; Japanese
• Published: 30.11.2023
• Subjects: BLASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; DIFFUSION TREATMENT OF METALLIC MATERIAL; HEAT EXCHANGE IN GENERAL; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; WEAPONS

A method for improving heat-transfer efficiency of a heat exchanger by forming a water-repellent film on the surface of the heat exchanger, said method being characterized in that the water-repellent film is formed by bringing the heat exchanger into contact with a liquid comprising an acid and a water-repellent-film-forming substance. A method for improving heat-transfer efficiency of a heat exchanger by forming a water-repellent film on the surface of the heat exchanger, said method being characterized in that the water-repellent film is formed by bringing the heat exchanger into contact with a liquid containing an acidic water-repellent-film-forming substance. L'invention concerne un procédé d'amélioration de l'efficacité de transfert de chaleur d'un échangeur de chaleur par la formation d'un film hydrophobe sur la surface de l'échangeur de chaleur, ledit procédé étant caractérisé en ce que le film hydrophobe est formé par la mise en contact de l'échangeur de chaleur avec un liquide comprenant un acide et une substance de formation de film hydrophobe. L'invention concerne en outre un procédé d'amélioration de l'efficacité de transfert de chaleur d'un échangeur de chaleur par la formation d'un film hydrophobe sur la surface de l'échangeur de chaleur, ledit procédé étant caractérisé en ce que le film hydrophobe est formé par la mise en contact de l'échangeur de chaleur avec un liquide contenant une substance acide de formation de film hydrophobe. 熱交換器表面に撥水皮膜を形成して熱交換器の伝熱効率を改善する方法において、熱交換器に酸と撥水皮膜形成物質とを含む液を接触させることにより撥水皮膜を形成することを特徴とする熱交換器の伝熱効率改善方法。熱交換器表面に撥水皮膜を形成して熱交換器の伝熱効率を改善する方法において、熱交換器に酸性撥水皮膜形成物質を含む液を接触させることにより撥水皮膜を形成することを特徴とする熱交換器の伝熱効率改善方法。