JPH0349013B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a hot water boiler used in domestic water heaters and heating equipment.

BACKGROUND ART Conventionally, this type of hot water boiler has a can body 1 having a water chamber 4 formed between an inner shell 2 and an outer shell 3, and two surfaces of the inner shell of the can body 1, as shown in FIG. a heating body 5 for heating the outer shell 3 and the circumferential side wall, a water inlet 6 at the lower part of the circumferential side wall, a hot water inlet 7 at the upper part, and the water inlet 6 and the hot water inlet 7.
A thermometer detector 8 is provided between the hot water temperature detector 8 and the hot water temperature detector 8.
The heating element 5 is turned on and off by the following steps.

Problems to be Solved by the Invention However, with the above configuration, water is supplied from the water inlet, heated by the heating element while being discharged from the inlet, and the hot water temperature detector detects the required hot water temperature and the heating element However, since the water temperature in the hot water temperature detector section is not uniform in the circumferential direction of the can body, the water temperature may be detected too early or too late depending on the increase or decrease in the amount of water supplied. It was difficult to obtain a hot water temperature, which caused discomfort during use.

The present invention has been made to solve these conventional problems, and aims to provide a uniform water temperature in the water temperature detector section, to perform good water temperature detection, and to prevent discomfort during operation.

Means for Solving the Problems In order to solve the above problems, the hot water boiler of the present invention includes a can body in which a water chamber is formed between an inner shell and an outer shell;
A heating element that heats the inner and outer shell surfaces of the can body, and at least the inner shell of the inner and outer shells are provided with a bulge, and a bulge is provided on the circumferential wall of the outer shell to face the peak of the bulge on the inner shell. The system is equipped with a hot water temperature sensor.

Effects The present invention has the above-described configuration, so that the water temperature in the water temperature detection section is guided in the cylindrical direction along the peaks, so the water temperature is uniformly heated and there is no partial boiling. This results in good water temperature detection.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. 1 and 2, reference numeral 1 denotes a can body with a water chamber 4 formed between an inner shell 2 and an outer shell 3, and the inner shell 2 has troughs 5 and peaks 6 in the cylindrical direction. A bulge processing 7 is performed in which bulges are formed in alternating and continuous manner. In addition, on the inner wall of the lower end of the water chamber 4 of the inner shell 2 and outer shell 3,
Glass lining 8 is processed, and the outer shell 3 of the expanded pipe part 9 at one end of the inner shell 2 and the spinning part 10 of the other end of the inner shell 2 and the outer shell 3 are closed and fixed by welding. ing. 11 is a water supply port provided in the cylindrical side wall of the outer shell 3 so as to face each part 5 of the bulge processing 7 of the inner shell 2; 12 is a hot water supply port, 1
3 is a hot water temperature detector, which is installed on the outer shell 3 and the cylindrical side wall, and on the inner shell 2.
It is provided so as to face the peak part 6 of the bulge processing 7. 14 is a full plate. 15
1 is a combustion cylinder of a swirling burner used in an embodiment of the present invention, and a large number of swirling air injection holes 16 are provided around the side wall of the combustion tube.
is provided and communicates with a blower composed of a motor 17, a fan 18, and a fan case 19. A nozzle 20 serves as a fuel atomizing means, and fuel is sprayed from the tip of the nozzle from an oil tank (not shown) via an electromagnetic pump 21. Reference numeral 22 denotes a cylindrical auxiliary combustion cylinder with a hole 23 provided around the combustion cylinder 15 to prevent oil particles ejected from the nozzle 20 from colliding with each other, and forms a mixing chamber 24 between the combustion cylinder 15 and the combustion cylinder 15 . 2
Reference numeral 5 denotes a burner ring that forms a combustion chamber 26 in the lower part of the inner shell 2 .

In the above configuration, the combustion air and combustion particles are
Mixing and vaporization are promoted in the mixing chamber 24, and swirling vaporization combustion is performed in the upper part of the combustion tube 15, and while the combustion gas passes between the baffle plate 14 and the inner shell 2, it is mixed with water in the water chamber 4. It promotes heat exchange. Water supplied from the water supply port 11 during boiler combustion is heated while pushing up the troughs 5 and peaks 6 of the bulge 7 of the inner shell 2. By providing the side wall of the bulge 7 of the inner shell 2 facing the peak 6, water is accelerated in the valley 5 and a temperature distribution occurs between the inner shell 2 and the outer shell 3. Due to deceleration, hot water temperature detection 1
The water temperature in the third part is guided in the circumferential direction along the mountain part,
The water temperature is uniformly heated, and good water temperature detection without partial boiling is also possible.

Effects of the Invention As described above, the hot water boiler of the present invention provides the following effects.

(1) The hot water temperature sensor is installed on the circumferential side wall of the outer shell, facing the peak of the bulge on the inner shell, so the water temperature at the hot water temperature sensor section is measured in the circumferential direction along the peak. As a result, the water temperature is uniformly heated, allowing for good water temperature detection without partial boiling.

(2) Since the water temperature in the water temperature sensor section is uniform in the circumferential direction, there is no variation in water temperature due to manufacturing variations in the location of the water temperature sensor, and there is no variation in product even during mass production. A constant water temperature can be obtained.

[Brief explanation of drawings]

FIG. 1 is a front sectional view of a hot water boiler according to an embodiment of the present invention, FIG. 2 is a plan sectional view taken along line A-A' in FIG.
FIG. 3 is a front sectional view of a conventional example. 1...Can body, 2...Inner shell, 3...Outer shell, 4...
Water chamber, 7...Bulge processing, 11...Water inlet, 12
...Hot water inlet, 13...Water temperature detector.

Claims (1)

[Claims] 1. A can body forming a water chamber between an inner shell and an outer shell,
A heating element that heats the inner shell surface of the can body, and at least the inner shell of the inner and outer shells are subjected to bulge processing,
A hot water boiler comprising: a hot water temperature detector provided on a cylindrical wall of the outer shell so as to face a peak of the bulge of the inner shell.