JPS58185703U

JPS58185703U - Natural circulation water tube boiler

Info

Publication number: JPS58185703U
Application number: JP8326882U
Authority: JP
Inventors: 小関　康雄; 章山田; 燦吉高橋; 健吉和泉; 武生野谷
Original assignee: バブコツク日立株式会社
Priority date: 1982-06-04
Filing date: 1982-06-04
Publication date: 1983-12-09

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

[Brief explanation of drawings]

第１図は自然循環式水管ボイラの縦断面図、第２図は第
１図のＡ−Ａ線断面図、第３図は第１図のＢ−Ｂ線断面
図、第４図は気水ドラムの概略構成図、第５図は気水ド
ラム内の流動状況図、第６図は水位上昇特性図、第７図
Ａおよび第７図Ｂは　゛ドラム内流動パターンを示す図
、第８図は本考案における気水ドラム構造を示す断面図
、第９図、第１０図および第１１図はそれぞれ本考案に
おける蒸気集合管の実施例を示す断面図、第１２図は蒸
気集合管の横方向幅／縦方向幅と圧力損失との関係を示
す図である。１・・・・・・火炉、２・・・・・・バンク、１１・・
・・・・炉壁水管群、１３・・・・・・水管群、１４・
・・・・・気水ドラム、１５・・・・・・水ドラム、３
０・・・・・・蒸発管、３１・・・・・・降水管、４０
・・・・・・水面、４１・・・・・・水、４２・・・・
・・蒸気、５５・・・・・・水滴、９０．　９２．　９
３．　９４・・・・・・蒸気集合管。第６図１４　　　　　１４　　　　１４゛９２−　　　　　”　　９３　　　　９４第７図　　
　　　　　− （Ａ）　　　　　　（Ｂ　）ｔ　’　　＠　１−２　ｕＯ」ト　　１ｌ−１０７ｂ（−）き　　　　−−Figure 1 is a vertical sectional view of a natural circulation water tube boiler, Figure 2 is a sectional view taken along line A-A in Figure 1, Figure 3 is a sectional view taken along line B-B in Figure 1, and Figure 4 is a steam A schematic configuration diagram of the drum, Figure 5 is a diagram of the flow situation in the air/water drum, Figure 6 is a water level rise characteristic diagram, Figures 7A and 7B are diagrams showing the flow pattern in the drum, Figure 8 9, 10 and 11 are sectional views each showing an embodiment of the steam collecting pipe according to the present invention, and Fig. 12 is a lateral view of the steam collecting pipe. It is a figure showing the relationship between width/vertical direction width and pressure loss. 1... Furnace, 2... Bank, 11...
...Furnace wall water tube group, 13...Water tube group, 14.
... Air and water drum, 15 ... Water drum, 3
0...Evaporation tube, 31...Download tube, 40
...Water surface, 41...Water, 42...
...Steam, 55...Water droplets, 90. 92. 9
3. 94...Steam collecting pipe. Fig. 6 14 14 14 ゛92- ” 93 94 Fig. 7
- (A) (B) t' @ 1-2 u O'' 1l-1 07b(-) ki --

Claims

[Scope of utility model registration request]

(1) In a natural circulation water tube boiler equipped with an air-water drum with a steam collecting pipe attached along the upper part of the drum, the longitudinal width in a cross section perpendicular to the longitudinal direction of the steam collecting pipe is smaller than the lateral width. A natural circulation water tube boiler characterized by:

(2) The natural circulation water tube boiler according to claim 1, which is a utility model registration, characterized in that the width in the horizontal direction/width in the vertical direction is in the range of 1.2 to 2.5.