JPH0119008Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a hot water boiler, and its purpose is to use a water jacket as the peripheral wall of a combustion chamber, provide a pressure regulating valve on the water jacket,
It is an object of the present invention to provide a hot water boiler in which the water jacket also serves as a pressure tank function, and in which parts for hot water heating such as a reserve tank and a circulation pump can be housed compactly.

Conventional hot water boilers have a separate combustion chamber and pressure tank, which has a large number of parts, and although the surrounding wall of the combustion chamber is covered with a heat insulating material, there is little heat loss from the combustion chamber. Nakatsuta.

The present invention has been devised in view of the above points, and will be described below with reference to the drawings. In FIG. 1, 1 is a burner supplied with oil from an oil supply pipe 2;
is a combustion chamber, and a water jacket 4 heated by the combustion chamber 3 is disposed around the combustion chamber 3. The water jacket 4 is provided with a pressure regulating valve 5 to keep the pressure inside the water jacket 4 constant at all times. The valve body 7 that closes the outflow port 6 contracts the spring 8 toward the radiator cap 9 side, and opens the outflow port 6, thereby discharging the hot water inside the water jacket 4 into the reserve tank 10, and draining the water jacket 4 into the reserve tank 10. 4 When the internal pressure falls below a certain value, the valve body 13 that closes the inlet 12 stretches the spring 14 and opens the inlet 12, thereby opening the reserve tank 1.
It is assumed that the internal water is sucked into the water jacket 4. 15 is a circulation pump, 16 is a heat exchanger,
17 is an outgoing pipe, 18 is a return pipe, and the circulation pump 1
5 and reserve tank 10 are water jacket 4
It is located below.

In the hot water boiler according to the present invention having the above-mentioned mechanism, the water in the water jacket 4 receives heat from the combustion chamber 3 by the burner 1, becomes hot water, and is heated from the water jacket 4 by the circulation pump 15. The heat is transferred to the exchanger 16, then reheated by the combustion gas from the burner 1, and then sent from the outgoing pipe 17 to a fan coil or a floor heating panel (not shown), where the heat is radiated, and then sent from the return pipe 18 to the water heater. Return to Ketuto 4. At this time, water jacket 4
When the internal hot water is heated and expands in volume and the internal pressure of the water jacket 4 exceeds a certain value, the hot water inside the water jacket 4 is discharged into the reserve tank 10 as described above, combustion is stopped, and the circulating water is discharged. When the water jacket 4 shrinks due to cooling and the pressure inside the water jacket 4 becomes below a certain value, the water in the reserve tank 10 is sucked into the water jacket 10.

As described above, the hot water boiler according to the present invention uses a water jacket 4 on the peripheral wall of the combustion chamber 3, and a pressure regulating valve 5 is provided on the water jacket 4 to keep the internal pressure of the water jacket 4 constant at all times and also serves as a pressure tank. As a result, the number of parts is reduced, the heat in the combustion chamber 3 can be used effectively, and the thermal efficiency of the hot water boiler is improved.Furthermore, the water jacket 4 plays the role of cutting off heat from the outside. , it is possible to eliminate the need for a heat insulating material in the combustion chamber 3. In addition, since the reserve tank and circulation pump are provided below the water jacket, the space below the horizontal burner can be used effectively and the hot water heating components can be compactly housed within the main body. It is possible to maximize the functionality of these parts by utilizing the difference in water head with the water jacket.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of a hot water boiler according to the present invention, and FIG. 2 is an enlarged view of the main part of section A in FIG. 3... Combustion chamber, 4... Water jacket, 5
...Pressure control valve.

Claims (1)

[Scope of utility model registration request] A water jacket for heating circulating water for heating is provided on the peripheral wall of the horizontal combustion chamber facing the burner at one end, a pressure regulating valve is provided at the top of this water jacket, and a pressure regulating valve is provided below the water jacket. A hot water boiler characterized by being equipped with a reserve tank connected to a water jacket and a circulation pump connected to a water jacket.