JPH03128201U

JPH03128201U -

Info

Publication number: JPH03128201U
Application number: JP3526990U
Authority: JP
Priority date: 1990-03-30
Filing date: 1990-03-30
Publication date: 1991-12-24

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図は第１図及び第２図に示す多管式貫流ボイ
ラにおいて用いられるフインチユーブの一例を示
す平面図、第４図は同正面図、第５図はフインチ
ユーブの他の例を示す平面図、第６図は同正面図
、第７図〜第１０図は従来例を示すもので、第７
図は従来の多管式貫流ボイラの縦断面説明図、第
８図は同横断面説明図、第９図及び第１０図は、
第８図における内列水管及び外列水管まわりを示
す説明図である。１……上部管寄、２……下部管寄、３……内列
水管、４……板状フイン、５……外列水管、６…
…板状フイン、７……開口部、８……燃焼ガス出
口、９……燃焼装置、１０，１０ａ，１０ｂ……
フイン、１１……ケーシング、１２……耐火断熱
材、１３……フランジ、１４……燃焼室、１５，
１６……耐火断熱材、１７，１７ａ……ガス通路
。 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 a plan view showing an example of the finch tube used in the multi-tube once-through boiler shown in FIGS. 1 and 2, FIG. 4 is a front view of the same, and FIG. 5 is a plan view showing another example of the finch tube. , Fig. 6 is a front view of the same, Figs. 7 to 10 show the conventional example, and Fig. 7 shows the conventional example.
The figure is an explanatory longitudinal cross-sectional view of a conventional multi-tubular once-through boiler, Fig. 8 is an explanatory cross-sectional view of the same, and Figs. 9 and 10 are:
FIG. 9 is an explanatory diagram showing the surroundings of the inner row water pipe and the outer row water pipe in FIG. 8; 1... Upper header, 2... Lower header, 3... Inner row water pipe, 4... Plate fin, 5... Outer row water pipe, 6...
...Plate fin, 7... Opening, 8... Combustion gas outlet, 9... Combustion device, 10, 10a, 10b...
Fin, 11...Casing, 12...Fireproof insulation material, 13...Flange, 14...Combustion chamber, 15,
16... Fireproof insulation material, 17, 17a... Gas passage.

Claims

[Claims for Utility Model Registration] 1. It has a ring-shaped upper header 1 and a ring-shaped lower header 2, and between these headers 1 and 2 is a vertical inner water pipe 3 and an outer water pipe 5. In a multi-tube once-through boiler, the boiler has a cylindrical shape and is doubly connected to communicate with each other, with the inside of the inner water pipe 3 serving as the combustion chamber 14, and the space between the inner water pipe 3 and the outer water pipe 5 serving as the gas passage. The row water pipe 3 is a bare pipe, the outer row water pipe 5 is a fin 10a coiled around the water pipe, and a casing 11 is provided on the outside of the exceptional water pipe 5 with a fireproof heat insulating material 12 lined inside. and the above fireproof insulation material 12
A multi-tubular once-through boiler characterized in that a gas passage 17a is formed between the water tubes and the water tubes in a direction substantially perpendicular to the tube axis of the water tubes, and the entire surface area of the outer row of finch tubes becomes a heat transfer section. . 2. Instead of making the outer water pipe 5 a finch tube in which the fins 10a are coiled around the water pipe, it is possible to use a finch tube in which the outer water tube 5 is provided with fins 10b extending substantially all the way around the tube axis at right angles to the tube axis of the outer water tube 5. A multi-tubular once-through boiler according to claim 1. 3. The casing 11 with fireproof insulation material 12 provided on the outside of the outer row water pipe 5 is attached to the left and right or top and bottom.
The multi-tubular once-through boiler according to claim 1 or 2, characterized in that the boiler is divided.