JPS5838285Y2 - hot water boiler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a boiler that supplies hot water by boiling it, and particularly relates to a leakage detection device in this hot water boiler.

This kind of hot water boiler, which has already been proposed, has a combustion case in which a combustion chamber is formed inside a wire sphere having a water supply port and a hot water supply port, which is substantially integrated by welding, and an exhaust passage is formed within the combustion case. A baffle plate is welded and installed, and an exhaust pipe communicating with the exhaust passage is provided by penetrating a part of the wire sphere,
Furthermore, a removable bottom plate made of a heat-resistant material is provided at the bottom of the combustion casing, and a combustion burner is provided at the opening of the combustion casing.

Therefore, by igniting the combustion burner and heating the combustion casing, the water within the wire sphere is heated by heat exchange and flows out of the main body from the hot water supply port.

As described above, since the wire ball and the combustion casing in the hot water boiler are welded together and are substantially integrated, over time, either the wire ball or the combustion casing may develop cracks due to erosion or the like. If water leaks due to this, the entire hot water boiler must be replaced.Furthermore, since the wire bulb and combustion casing are integrally constructed, it is difficult to assemble by welding to maintain water leakage, making mass production difficult. It was difficult to save labor by

Furthermore, since the above-mentioned hot water boiler exhausts exhaust gas outside the main body through the exhaust passage and exhaust pipe formed by the baffle plate, cracks occur in the combustion casing that is integrated with the above-mentioned wire bulb, causing leakage. However, it was difficult to detect this.

In order to solve the above-mentioned difficulties, the present invention provides a removable combustion casing in the opening of the wire bulb, and a baffle plate with an exhaust passage formed in the lower part of the combustion casing. An exhaust pipe positioned above the exhaust passage is attached to the lower part, a combustion burner is provided at the opening of the combustion housing, and water accumulates inside the combustion housing and the water surface reaches the exhaust passage. To provide a hot water boiler whose purpose is to detect leakage by shutting off and stopping combustion of a combustion burner.

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

In FIGS. 1 and 2, reference numeral 1 denotes a rim that forms a hot water storage chamber 2, and a water supply port 3 is provided at the lower part of the back wall of this rim 1. A hot water supply port 4 is formed.

Further, a combustion casing 5 is horizontally attached and detachably provided in the front opening 1a of the edge body 1 via a backing 6 with a mounting member 7, and a lower part of the combustion chamber 5a of the combustion casing 5 is installed. A baffle plate 8 having a stepped portion 8a is provided to form an exhaust hole 8b and an exhaust passage 9.

Furthermore, the combustion casing 5 located below the step portion 8a
An exhaust pipe 10 is provided vertically at the bottom of the combustion chamber 5a, with its opening 10a positioned slightly above the exhaust passage 9 by Jh. Gas is exhausted through an exhaust passage 9.

Therefore, the opening 10a of the exhaust pipe 10 is the exhaust passage 9.
Because the baffle plate 8 extending slightly upwards than the exhaust hole 8b forming the combustion chamber 5, even if a crack occurs in the combustion casing 5 and leaks water, this leakage will not occur until the exhaust passage 9 is filled. It is designed to prevent leakage.

Further, a combustion burner 11 equipped with a flame detector for detecting a combustion state in the event of leakage is provided in the front opening 5b of the combustion casing 5 so as to be removable with a mounting member 13 via a heat-resistant support plate 12. The baffle plate 8 is in contact with the inner surface of the heat-resistant support plate 12 to prevent it from being accidentally pulled out.

Therefore, after supplying water into the hot water storage chamber 2 from the water supply port 3, the combustion burner 11 is ignited, thereby heating the combustion casing 5 and exchanging heat, and then hot water is supplied from the hot water supply port 4 to the outside of the machine. It is supposed to be done.

On the other hand, if the combustion casing 5 enters and leaks over time, and the exhaust passage 9 is filled with leaked water and the water surface blocks the exhaust passage 9, the combustion burner stops combustion without losing its exhaust capacity.

This has led to the detection of leaks using flame detectors, such as charging converters.

As described above, according to the present invention, the combustion casing 5 is removably provided in the opening 1a of the edge body 1 having the water inlet 3 and the hot water inlet 4, and the exhaust passage 9 is provided in the lower part of the combustion casing 5. A formed baffle plate 8 is provided, and an exhaust pipe 10 is provided at the lower part of the combustion casing 5 so as to be located above the exhaust passage 9,
A combustion burner 11 equipped with a flame detector for detecting the combustion state at the time of leakage is provided in the opening 5b of the combustion casing 5, and when a crack occurs in the combustion casing 5 and leakage occurs, the exhaust passage 9 is Since the combustion of the combustion burner 11 is stopped by shutting off the leak, it is not only possible to detect leakage, but also has a simple configuration, which has practical effects such as saving labor through mass production. It is.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a hot water boiler according to the present invention, and FIG. 2 is a sectional view taken along the chain line A--A in FIG. 1...tubular body, 3...water inlet, 4...
...Hot water inlet, 5...Combustion casing, 8...
・Baffle plate, 9...Exhaust passage, 10...
Exhaust pipe, 11... Combustion burner

Claims (1)

[Scope of utility model registration request] Front opening 1a of wire ball 1 having water supply port 3 and hot water supply port 4
The combustion casing 5 is horizontally attached and detached, and a baffle plate 8 is provided at the bottom of the combustion casing 5 to separate the exhaust hole 8b and the exhaust passage 9 from the combustion chamber 5a. A stepped portion 8a is formed at one end, and an exhaust pipe 10 is provided at the bottom of the combustion casing 5, where the stepped portion 8a is located, and is positioned above the exhaust passage 9 and is oriented vertically. ,
A hot water boiler characterized in that a combustion burner 11 equipped with a flame detector for detecting a combustion state at the time of leakage is provided in the opening 5b of the combustion casing 5.