JPH0387004U

JPH0387004U -

Info

Publication number: JPH0387004U
Application number: JP14441489U
Authority: JP
Priority date: 1989-12-14
Filing date: 1989-12-14
Publication date: 1991-09-04

Description

[Brief explanation of drawings]

第１図は本考案の多管式貫流ボイラの一実施例
を示す縦断面説明図、第２図は同横断面説明図、
第３図は本考案の他の実施例における横断面説明
図、第４図は比較実験のために製作した多管式貫
流ボイラの横断面説明図、第５図は従来の多管式
貫流ボイラの横断面説明図である。１……上部管寄、２……下部管寄、３……内列
、４……外列、５，６……間隔板、７……中心、
８……燃焼室、９，１１……開口部、１０……燃
焼ガス通路、１２……燃焼装置、１３……煙道、
１４，１５……中心。 Fig. 1 is an explanatory longitudinal cross-sectional view showing an embodiment of the multi-tubular once-through boiler of the present invention, Fig. 2 is an explanatory cross-sectional view of the same,
Fig. 3 is an explanatory cross-sectional view of another embodiment of the present invention, Fig. 4 is an explanatory cross-sectional view of a multi-tubular once-through boiler manufactured for comparative experiments, and Fig. 5 is an explanatory cross-sectional view of a conventional multi-tubular once-through boiler. FIG. 1... Upper header, 2... Lower header, 3... Inner row, 4... Outer row, 5, 6... Spacing plate, 7... Center,
8... Combustion chamber, 9, 11... Opening, 10... Combustion gas passage, 12... Combustion device, 13... Flue,
14, 15...center.

Claims

[Scope of utility model registration request]

A large number of water pipes connect the annularly formed upper header 1 and lower header 2, and these water pipes are connected to the inner row 3.
and outer row 4 form a concentric row of water tubes, and inner row 3
The inside of the combustion chamber 8 is formed, an opening 9 is provided in the inner row 3 over the entire length of the water tube, and a combustion gas passage 10 is formed between the inner row 3 and the outer row 4 to communicate with the opening 9. In a multi-tube once-through boiler, an opening 11 is provided in the outer row 4 over the entire length of the water tube, and this opening 11 is communicated with the combustion gas passage 10 to guide the combustion gas to the flue 13. Water tube outer diameter and outer row 4
The water tubes in the inner row 3 are connected by a spacing plate 5, the water tubes in the outer row 4 are connected by a spacing plate 6, and the centers 7 of the inner row 3 and the outer row 4 are made equal. , the angle α between the line connecting the centers 14 of adjacent water tubes in the inner row 3, and the line connecting the centers 7 of the inner row 3 and outer row 4 and the center 15 of the water tubes in the outer row 4 are equal to 2 A multi-tube once-through boiler characterized by being configured to be divided into two parts.