JPS6123001U

JPS6123001U - Burnout prevention type fluidized bed boiler

Info

Publication number: JPS6123001U
Application number: JP10322384U
Authority: JP
Inventors: 邦男岸上
Original assignee: バブコツク日立株式会社
Priority date: 1984-07-10
Filing date: 1984-07-10
Publication date: 1986-02-10
Also published as: JPH053841Y2

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 the drawing]

第１図ないし第３図は流動層ボイラの系統図を示し、第
１図はこの考案の第１の実施例を、第２図は第２の実施
例を、第３図は従来技術を各々示す。１、・・・・・・ボイラドラム、４・・・・・・ボイラ
本体、５・・・・・・流動層、８・・・・・・過熱器、
１０・・・・・・再熱器、２０，２３・・・・・・蒸気
解放弁。Figures 1 to 3 show system diagrams of fluidized bed boilers; Figure 1 shows the first embodiment of this invention, Figure 2 shows the second embodiment, and Figure 3 shows the conventional technology. show. 1. Boiler drum, 4. Boiler body, 5. Fluidized bed, 8. Superheater,
10... Reheater, 20, 23... Steam release valve.

Claims

[Scope of utility model registration request]

(1) In a fluidized bed in which heat transfer tubes such as a superheater and a reheater are arranged to allow steam to pass through, the steam is discharged to the outside of the system through the pipes on the steam outlet side of the heat transfer tubes in these layers. A burnout-prevention type fluidized bed boiler that is equipped with a valve to prevent burnout due to residual heat in the fluidized bed by using the residual pressure inside the boiler to pass steam into the heat transfer tubes when the boiler is stopped. 2. In the burnout prevention type fluidized bed boiler described in claim 1 of the utility model registration claim, the superheater outlet side and the reheater inlet side are connected by a bypass pipe, and the steam is supplied to the reheater outlet side. A system is equipped with a valve to discharge outside the system, and is configured to allow steam to flow in series to the superheater and reheater when the boiler is stopped. 3 Utility Model Registration Claims In the burnout prevention type fluidized bed boiler according to claim 1, the reheater inlet side and the boiler drum are connected by a pipe line, and valves are provided on the superheater and reheater outlet sides, respectively, A system configured to allow steam to flow in parallel to the superheater and reheater when the boiler is stopped.