JPH0473729U

JPH0473729U -

Info

Publication number: JPH0473729U
Application number: JP11361090U
Authority: JP
Priority date: 1990-10-30
Filing date: 1990-10-30
Publication date: 1992-06-29

Description

[Brief explanation of drawings]

第１図及び第２図は本考案の熱電対装置のそれ
ぞれ第１及び第２の実施例を示す図、第３図は本
考案の熱電対装置を使用する燃焼装置を示す図、
第４図は従来構成の熱電対装置を示す図、第５図
は第４図の−断面矢視図である。符号の説明：１……電磁弁、２……第１の熱電
対、３……第２の熱電対、４……燃焼装置、５…
…熱交換器、６……取付金具、７，８，９……導
電線、１０……操作桿、６−２……導電線を固定
する爪、６−３……第２の熱電対を固定する爪。 1 and 2 are diagrams showing first and second embodiments of the thermocouple device of the present invention, respectively, and FIG. 3 is a diagram showing a combustion device using the thermocouple device of the present invention,
FIG. 4 is a diagram showing a conventional thermocouple device, and FIG. 5 is a cross-sectional view taken along the - arrow in FIG. 4. Explanation of symbols: 1... Solenoid valve, 2... First thermocouple, 3... Second thermocouple, 4... Combustion device, 5...
...Heat exchanger, 6...Mounting bracket, 7, 8, 9...Conductive wire, 10...Operation stick, 6-2...Claw for fixing the conductive wire, 6-3...Second thermocouple Fixing nails.

Claims

[Claims for Utility Model Registration] (1) A solenoid valve 1 disposed in a fuel passage that supplies fuel to a combustion device 4 that burns gaseous fuel generates an electromotive force in a first thermocouple 2 due to the combustion heat of the fuel. Therefore, the valve is kept open, and when there is a lack of oxygen and incomplete combustion of the fuel occurs, the combustion flame 4-1 extends or floats up from the combustion device 4 and is connected in series with the first thermocouple 2. A second thermocouple that is connected generates an electromotive force that cancels the electromotive force of the first thermocouple 2 and closes the electromagnetic valve 1.
The second thermocouple 3 in the combustion device 4 is arranged in a specific relation position with respect to the combustion device 4.
is a thermocouple 3 in which metal wires made of different metals forming the second thermocouple 3 are joined to each other at an angle θ, and each end of each different metal wire on the opposite side to the joining side In the case where conductive wires 7 and 9 are connected to the solenoid valve 1 and the first thermocouple 2, at least a mounting bracket 6 for attaching the second thermocouple 3 to the combustion device 4 , A thermocouple device characterized in that the dissimilar metal wires forming the second thermocouple 3 forming an angle θ with each other are fixed via electrical insulators. (2) The electromagnetic valve 1 disposed in the fuel passage that supplies fuel to the combustion device 4 that burns gaseous fuel has a first thermocouple 2 and a first thermocouple 2 for keeping the valve open by electromotive force generated by the combustion heat of the fuel. , to enable the solenoid valve 1 to be kept open immediately after the fuel starts to burn;
connected in series or parallel to the first thermocouple 2,
The second thermocouple 3, which generates an electromotive force in the same direction as the first thermocouple 2 due to heating, is disposed at a specific relative position with respect to the combustion device. In the thermocouple 3 of No. 2, the metal wires made of different metals forming the thermocouple 3 are joined to each other at an angle θ, and the above-mentioned metal wires are attached to each end of each dissimilar metal wire on the opposite side from the joining side. Solenoid valve 1 and the first
In the case where conductive wires 7 and 9 connecting the second thermocouple 1 are connected, at least the second thermocouple 3 is connected to the mounting bracket 6 for attaching the second thermocouple 3 to the combustion device 4 at an angle θ to each other. A thermocouple device characterized in that each of the dissimilar metal wires constituting the second thermocouple is fixed via an electrical insulator.