JPS648003U

JPS648003U -

Info

Publication number: JPS648003U
Application number: JP10265687U
Authority: JP
Priority date: 1987-07-06
Filing date: 1987-07-06
Publication date: 1989-01-17

Description

[Brief explanation of the drawing]

第１図は本考案による第一実施例のボイラー縦
断面図；第２図は第１図−線に沿つた断面図
；第３図は第二実施例を示すボイラー縦断面図；
第４図は第３図−線に沿つた部分的拡大断面
図；第５図はヒレの別実施例を示す一水管斜視図
；第６図は第四実施例を示すボイラー縦断面図；
第７図は第６図−線に沿つた部分的拡大断面
図；第８図はヒレの別実施例を示す単体図；第９
図は従来のボイラーの煙道部分における横断面図
；第１０図は第９図を展開し燃焼ガスの接触部位
を示す図。１……上部管寄せ、２……下部管寄せ、３，４
……水管、５……内方の環状水管列、６……外方
の環状水管列、８……燃焼ガス通路、１０……間
隙、１２……隔壁、１８，２０，２０′，２１…
…ヒレ、１９……スペーサ。 Fig. 1 is a longitudinal sectional view of a boiler according to a first embodiment of the present invention; Fig. 2 is a sectional view taken along the line of Fig. 1; Fig. 3 is a longitudinal sectional view of a boiler showing a second embodiment;
Fig. 4 is a partially enlarged sectional view taken along the line of Fig. 3; Fig. 5 is a perspective view of a water pipe showing another embodiment of the fin; Fig. 6 is a vertical sectional view of the boiler showing the fourth embodiment;
FIG. 7 is a partially enlarged sectional view taken along the line of FIG. 6; FIG. 8 is a single unit view showing another embodiment of the fin;
The figure is a cross-sectional view of the flue section of a conventional boiler; FIG. 10 is an expanded view of FIG. 9 showing the contact area of combustion gas. 1... Upper header, 2... Lower header, 3, 4
... Water tube, 5 ... Inner annular water tube row, 6 ... Outer annular water tube row, 8 ... Combustion gas passage, 10 ... Gap, 12 ... Partition wall, 18, 20, 20', 21 ...
...fin, 19...spacer.

Claims

[Scope of utility model registration request]

Both the upper header and the lower header are formed in an annular shape, and these upper and lower headers are connected by a number of vertical water pipes, and these water pipes are arranged as two concentric annular water pipe rows at intervals in the radial direction. A multi-tube once-through boiler in which a combustion gas passage is formed between one row of annular water tubes and an outer annular water tube row, the boiler having passage means for flowing combustion gas in a radial direction from the combustion chamber to the combustion gas passage. A multi-tube once-through boiler, characterized in that the combustion gas flow introduced into the combustion gas passage is directed vertically downward.