JPS5992356U

JPS5992356U - Combustor incomplete combustion prevention device

Info

Publication number: JPS5992356U
Application number: JP18784482U
Authority: JP
Inventors: 稲垣　英夫; 岩田　泰二郎; 和則上山
Original assignee: パロマ工業株式会社
Priority date: 1982-12-11
Filing date: 1982-12-11
Publication date: 1984-06-22

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す概略断面図、第２図は
他の実施例を示す要部の概略断面図で、第２図ａは正常
燃焼時の状態を示す概略図、第２図すはフィン詰り等が
発生した場合の状態を示す概略図、第３図ａ、　　ｂは
他の異なる排気あふれ用ダクトの実施例を示す概略図、
第４図は感熱素子の異なる実施例を示す概略断面図であ
る。１・・・メインバーナ、２・・・パイロットバーナ、３
・・・１次熱電対、５・・・電磁安全弁、６・・・内胴
、７ａ・・・フィン、８・・・排気あふれ用ダクト、９
・・・逆極性の熱電対（感熱素子）、１０・・・電磁コ
イル。Fig. 1 is a schematic sectional view showing one embodiment of the present invention, Fig. 2 is a schematic sectional view of main parts showing another embodiment, Fig. 2a is a schematic diagram showing the state during normal combustion, and Fig. 2a is a schematic sectional view showing the main part of another embodiment. Figure 2 is a schematic diagram showing the state when fin clogging etc. occurs, Figure 3 a and b are schematic diagrams showing other different embodiments of the exhaust overflow duct,
FIG. 4 is a schematic cross-sectional view showing different embodiments of the heat-sensitive element. 1... Main burner, 2... Pilot burner, 3
...Primary thermocouple, 5...Solenoid safety valve, 6...Inner shell, 7a...Fin, 8...Exhaust overflow duct, 9
...Reverse polarity thermocouple (heat-sensitive element), 10... Electromagnetic coil.

Claims

[Scope of Claim for Utility Model Registration] 1. The pressure inside the inner shell changes from negative to small positive during normal combustion, and becomes positive when the fins are clogged.An exhaust overflow duct that communicates with the outside atmosphere is inserted at a predetermined position in the inner shell. A circuit consisting of a thermocouple that generates a thermoelectromotive force by installing a heat-sensitive element in the exhaust overflow duct, and that the heat-sensitive element is heated by a pilot burner flame, and an electromagnetic coil of an electromagnetic safety valve that controls the opening and closing of the fuel supply passage. An incomplete combustion prevention device for a combustor, characterized in that the device is interposedly connected to reduce the excitation current generated by the thermoelectromotive force of the thermocouple. 2. An incomplete combustion prevention device for a combustor according to claim 1, wherein the tip of the exhaust overflow duct protrudes into the inner shell. - 3. An incomplete combustion prevention device for a combustor according to claim 1, which uses a plurality of thermocouples as a heat-sensitive element disposed in an exhaust overflow duct and connects them in series.