JPH0330049U

JPH0330049U -

Info

Publication number: JPH0330049U
Application number: JP5122588U
Authority: JP
Priority date: 1988-04-15
Filing date: 1988-04-15
Publication date: 1991-03-25

Description

[Brief explanation of the drawing]

第１図は、この考案になるボイラの燃料系統異
常検出装置の一例を示す概略的ブロツク線図、第
２図は、正常時の設定流量パルスと、異常時の検
出流量パルスとを比較して示すグラフ図である。１……異常検出装置、２……ボイラ本体、３…
…給水ポンプ、４……加熱機構、５……燃料供給
機構、６……燃焼制御器、１０……燃料供給路、
１１……燃料供給ポンプ、１２……燃料制御弁、
１３……燃料供給量検出手段、１４……判定回路
。 Figure 1 is a schematic block diagram showing an example of the boiler fuel system abnormality detection device devised, and Figure 2 is a comparison of the set flow rate pulse during normal times and the detected flow rate pulse during abnormal times. FIG. 1... Abnormality detection device, 2... Boiler body, 3...
... Water supply pump, 4 ... Heating mechanism, 5 ... Fuel supply mechanism, 6 ... Combustion controller, 10 ... Fuel supply path,
11...Fuel supply pump, 12...Fuel control valve,
13... Fuel supply amount detection means, 14... Judgment circuit.

Claims

[Claims for Utility Model Registration] A boiler main body, a water supply pump that supplies water into the boiler main body, a heating mechanism that heats the water supplied into the boiler main body, and a fuel that supplies fuel to the heating mechanism. In a boiler system comprising a supply mechanism and a fuel controller that controls the amount of fuel supplied in the fuel supply mechanism, the boiler system is provided in a fuel supply passage in the fuel supply mechanism and controls the flow of fuel in the fuel supply passage. A fuel supply detection means outputs a flow rate pulse according to the flow rate, and a pulse time interval per pulse in the flow rate pulse from the fuel supply amount detection means is greater than a preset pulse time interval per pulse during normal operation. 1. A fuel system abnormality detection device for a boiler, comprising: a capability determination circuit that determines a decrease in the capability of the fuel system when the capability exceeds a preset range.