JPS608289Y2 - Solar heat water heater - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a solar hot water supply system having an auxiliary heat source.

Conventional configuration and its problems Figures 1 to 3 show the configuration of a conventional solar hot water supply system having an auxiliary heat source. In Figure 1, 1 is a solar heat collector, and 2 is a hot water storage tank. , 3 is a circulation pump, 4 is an electric heater 5 as an auxiliary heat source, and 6 is a water supply pipe.

In other words, in FIG. 1, when solar heat is insufficient and hot water cannot be stored in the hot water storage tank 2, the electric heater 4 is energized to compensate for it.

However, since the electric heater 4 in FIG. 1 is used, the energy cost is high, and since this electric heater 4 is mainly used as a late-night power heater that heats only at night, the electric heater 4 is used when necessary. However, there were problems with ease of use, such as the inability to refill hot water.

On the other hand, as an auxiliary heat source, a downward combustion oil burner 4a with a vertically arranged combustion chamber as shown in Fig. 2 is installed instead of the electric heater 4 shown in Fig. 1, or a general kerosene boiler as shown in Fig. 3. Similarly, in the case where an oil burner 4b with a combustion chamber arranged vertically is provided, the energy cost is low because it is an oil burner 4a * 4b, and hot water can be refilled at any time by operating it as needed.

However, in both of the combustion chambers shown in FIGS. 2 and 3, the combustion chamber is vertical, so the draft of the combustion chamber is large, and the oil burner 4a.

When 4b was not in use, there was a problem in that heat dissipation from the hot water tank 2 progressed due to this draft.

Purpose of the invention Therefore, the present invention aims to reduce the heat radiation loss caused by the draft in the combustion chamber when a burner is used as an auxiliary heat source.

Structure of the invention In order to achieve this object, the present invention has a hot water storage tank section above the connection part of the heat collection circuit, in which a pipe-shaped combustion chamber is passed through the hot water storage tank in an approximately horizontal direction, and the pipe-shaped combustion chamber is passed through the hot water tank in a substantially horizontal direction. The combustion chamber is supported on both sides by penetrations of the respective hot water storage tanks.

DESCRIPTION OF EMBODIMENTS In FIG. 4, 11 is a solar heat collector, 12 is a hot water storage tank,
Reference numeral 13 denotes a circulation pump, and a heat collection circuit constituted by the circulation pump 13 and the solar heat collector 11 is connected to the middle and lower part of the hot water storage tank 12, so that the solar heat storage part is stored in the lower part of the hot water storage tank 12. It's raging.

Moreover, above the connection part of the heat collecting circuit in the hot water storage tank 12,
This is a heating section that is heated to a higher temperature by an auxiliary heat source.

Reference numeral 14 denotes a combustion chamber having a combustion burner 15 therein, in which combustion is performed, and this combustion chamber 14 is located above the connection part of the heat collecting circuit of the hot water tank 12,
It penetrates the hot water storage tank 12 in a substantially horizontal direction.

The combustion chamber 14 is constructed in the shape of a pipe as shown in FIG. 4, and is supported by flanges 16 on both sides of the combustion chamber 14 in a penetrating portion of the hot water tank 12.

17 is an intake fan installed at one end of the combustion chamber 14; 18
is an exhaust pipe attached to the other end of the combustion chamber 14 passing through the hot water storage tank 12.

Note that the intake fan 17 may be installed in the exhaust pipe 18.

19 is a water supply pipe, and 20 is a hot water outlet pipe.

In the above configuration, the solar heat collected by the solar heat collector 11 is sent to the lower part of the hot water storage tank 12 from the installation position of the combustion chamber 14 by the circulation pump 13 and contributes to hot water storage, and when replenishing hot water, the combustion burner 15 is activated. When it is combusted, it is heated by heat exchange with the outer periphery of the combustion chamber 14, and hot water is stored.

Effects of the invention This invention uses a combustion burner as an auxiliary heat source, which does not incur high energy costs like conventional electric heaters that use late-night power, and unlike those that heat only at night, it uses gas or Since it uses a combustion burner that burns kerosene, it can quickly heat up to the required temperature using the auxiliary heat source when the hot water storage temperature from solar heat alone is insufficient, making it extremely easy to use. It will be excellent.

In addition, in the present invention, in the hot water storage tank section above the connection part of the heat collection circuit, the hot water storage tank is passed through the pipe-shaped combustion chamber in a substantially horizontal direction, and the pipe-shaped combustion chamber has two sides on each side. It is supported by the penetration part of the hot water tank.

For this reason, first of all, the draft is small because the combustion chamber is approximately horizontal, and as a result, when the combustion burner is used, the residence time of the combustion gas in the combustion chamber becomes longer, and the water in the hot water storage tank is drained accordingly. The heat exchange efficiency is increased, and when the combustion burner is not used, the heat in the hot water storage tank is less likely to be dissipated in the draft, reducing heat dissipation loss.

Next, since both sides of the pipe-shaped combustion chamber are supported by the penetration parts of each hot water storage tank, in other words, they are supported on both sides, the support may deteriorate due to vibrations and shocks during transportation, and the combustion The room will not fall or fall.

Furthermore, in the case where the pipe-shaped combustion chamber is passed through in a substantially horizontal direction, the supporting work can be performed outside the hot water storage tank, resulting in good workability.

[Brief explanation of the drawing]

FIGS. 1 to 3 are schematic diagrams of a conventional solar water heating system, and FIG. 4 is a schematic diagram of a solar water heating system according to an embodiment of the present invention. 11...Solar heat collector, 12...Hot water storage tank, 13...Circulation pump, 14...Combustion chamber, 15...Combustion Burner for use, 19...
・Water supply pipe, 20...Hot water pipe.

Claims (1)

[Scope of utility model registration request] It has a hot water storage tank with a water supply pipe at the bottom and a hot water outlet pipe at the top, a solar heat collector and a circulation pump, a heat collection circuit connected to the hot water storage tank, and a water storage tank above the connection part of the heat collection circuit. The hot water storage tank section includes a pipe-shaped combustion chamber that penetrates the hot water storage tank in a substantially horizontal direction, and a combustion burner provided within the combustion chamber. A water heater using solar heat that supports each part with a penetration part.