JPH0321689U

JPH0321689U -

Info

Publication number: JPH0321689U
Application number: JP7912189U
Authority: JP
Priority date: 1989-07-06
Filing date: 1989-07-06
Publication date: 1991-03-05

Description

[Brief explanation of drawings]

第１図は本考案に係わる伝熱管の機械式止栓の
一実施例を示す縦断側面図、第２図は同機械式止
栓の組合せ式拡大中子を示す斜視図、第３図は本
考案に係わる伝熱管の機械式止栓の他の実施例を
示す縦断側面図、第４図は同機械式止栓の組合せ
式拡大中子（一方の中子）を示す斜視図、第５図
は熱考案器を示す縦断側面図、第６図は従来の溶
接止栓を示す縦断側面図、第７図は従来の爆着止
栓を示す縦断側面図、第８図，は従来の機械
式止栓の取付け状態を示す縦断側面図、第９図
〜は同機械式止栓の製作要領を示す説明図であ
る。１……伝熱管、２……管板、３，６……プラグ
本体、４，７……組合せ式拡大中子の一方の中子
、５，８……組合せ式拡大中子の他方の中子。 Fig. 1 is a vertical sectional side view showing an embodiment of the mechanical stopper for a heat exchanger tube according to the present invention, Fig. 2 is a perspective view showing a combination type enlarged core of the mechanical stopper, and Fig. 3 is a main part of the present invention. FIG. 4 is a vertical cross-sectional side view showing another embodiment of the mechanical stopper for heat transfer tubes according to the invention; FIG. 4 is a perspective view showing a combined enlarged core (one core) of the mechanical stopper; FIG. 6 is a longitudinal side view showing a conventional welding stopper, Fig. 7 is a longitudinal side view showing a conventional explosion stopper, and Fig. 8 is a conventional mechanical type. A vertical sectional side view showing the state in which the stopper is attached, and FIGS. 9 to 9 are explanatory diagrams showing the procedure for manufacturing the mechanical stopper. 1... Heat exchanger tube, 2... Tube plate, 3, 6... Plug body, 4, 7... One core of the combination type expansion core, 5, 8... Inside the other of the combination type expansion core. Child.

Claims

[Scope of utility model registration request]

A mechanical stopper for a heat exchanger tube, characterized in that a combination type expanding core is inserted into a plug body having an annular projection formed on the outer peripheral surface and a regular cylindrical inner peripheral surface.