JPS58184U - heat exchanger tube - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の伝熱管の断面図、第２図は同伝熱管の要
部拡大図、第３図は同伝熱管の作用説明図、第４図は本
考案の一実施例を示す伝熱管の断面図、第５図は同伝熱
管の要部拡大図、第６図は同伝熱管の作用説明図、第７
図は本考案の伝熱管における油循環率と熱伝達率との関
係を従来の伝熱管のものと比較して示す図、第８図はＬ
／Ｈと熱伝達率の比との関係を示す特性図である。 １１・・・・・・Ｖ、１２−−−−−−インナフィン。Fig. 1 is a sectional view of a conventional heat transfer tube, Fig. 2 is an enlarged view of the main parts of the heat transfer tube, Fig. 3 is an explanatory diagram of the operation of the heat transfer tube, and Fig. 4 is a transfer diagram showing an embodiment of the present invention. 5 is an enlarged view of the main parts of the heat exchanger tube, FIG. 6 is an explanatory diagram of the operation of the heat exchanger tube, and FIG.
The figure shows the relationship between oil circulation rate and heat transfer coefficient in the heat exchanger tube of the present invention in comparison with that of a conventional heat exchanger tube.
FIG. 3 is a characteristic diagram showing the relationship between /H and the ratio of heat transfer coefficients. 11...V, 12-----innafin.

Claims (1)

【実用新案登録請求の範囲】 油類を含む気液二相流が流れる管の内壁に多数のインナ
フィンを立設した伝熱管において、隣り合うインナフィ
ンの間隔を下式（１）（２＋のいずれも満足する範囲と
１−たことを特徴とする伝熱管。 ０．５＜−＜１．０　　　　　　’　　（１）−−Ｈ−
− ０，５＜−＜１．０　　　　　　’　　＋２）Ｈ−−− ただし Ｈ；フィン高さ Ｒ；フィン根本部の曲率半径 Ｌ；管底部の距離。[Claims for Utility Model Registration] In a heat exchanger tube in which a large number of inner fins are erected on the inner wall of the tube through which a gas-liquid two-phase flow containing oil flows, the interval between adjacent inner fins is determined by the following formula (1) (none of 2+). A heat exchanger tube characterized by satisfying a range of 1-.0.5<-<1.0' (1)--H-
- 0,5<-<1.0' +2) H--- However, H: Fin height R; Radius of curvature L at the fin base; Distance from the bottom of the tube.