JPS5813246Y2 - Natural circulation solar water heater - Google Patents

Description

[Detailed description of the invention] The present invention relates to a natural circulation solar water heater, and relates to a water supply device for a hot water tank that has both a hot water storage function and a water supply function, which constitutes the water heater, and is based on an embodiment shown below. This will be explained in detail.

Figure 1 shows the configuration of a conventional natural circulation solar water heater.
A horizontally elongated hot water storage tank 2 made of resin is provided above the heat collector 1, and the two are connected by connecting pipes 3 and 4 to form a circulation circuit between the heat collector 1 and the hot water tank 2.

Reference numeral 5 denotes a hot water sampling pipe that opens at the top of the hot water storage tank 2. The hot water sampling pipe 5 is connected to a hot water faucet 6 installed in the kitchen or bathroom.

Also, inside the hot water storage tank 2, there is a reduced part A toward the bottom of the hot water storage tank 2 on one side.
It is divided into a hot water storage chamber 7 and a water supply chamber 8 which communicate with each other at the bottom, and the connecting pipe 4 is opened into the hot water storage chamber 7.

Inside the water supply chamber 8 is a bow 7 with the outlet 9 facing downward.
1. A tap-type automatic water supply faucet 10 is provided on one end face of the hot water storage tank 2 facing the water supply chamber.

11 is a water supply pipe connected to the automatic water supply faucet 10.

Reference numeral 12 denotes an overflow pipe that opens directly below the filling of the discharge port 9 on the installation surface of the automatic water tap 10 of the hot water tank 2.

However, the above conventional example has the following drawbacks.

In other words, the same amount of water as the amount of hot water being drawn is supplied from the discharge port 9, and as a result, the hot water below the reduced area A of the hot water storage chamber 7 mixes with the supplied water, and after the hot water above the reduced area A is drawn, the temperature remains at the predetermined temperature. There is a problem in that hot water cannot be drawn, high-temperature hot water is subject to large quantity restrictions, and water supplied from the outlet 9 leaks from the overflow pipe 12.

The present invention solves these problems, as shown in Figures 2 and 3.
As shown in the figure, a mounting piece B consisting of a horizontal part 14 and a raised part 15 is provided by extending one end of the upper opening of the water pipe 13, which has its upper and lower faces opened, and the raised part 15 has a screw hole 16. will be established.

Further, the lower part of the water pipe 13 is provided with a notch 17 and a protrusion 18, leaving the side opposite to the side where the mounting piece B is formed.

The water pipe 13 is installed by fitting the protruding part 18 into the water supply connection pipe 19 that is integrally provided at the bottom of the hot water tank 2, and inserting the raised part 15 into the hot water tank 2 between the automatic water tap 10 and the overflow pipe 12.
It is attached to the end face with a fixing device 20 such as a screw.

Therefore, according to the present invention, the water discharged from the outlet 9 into the hot water tank 2 is introduced into the water pipe 13, the water force is weakened in the water pipe 13, and the water is sent to the bottom of the hot water tank 2 through the notch 17. The hot water in the hot water storage tank 2 no longer mixes at the top as in the conventional example.

Further, the opening of the overflow pipe 12 and the discharge port 9 are blocked by the water pipe 13 and the horizontal portion 14, so that the above-mentioned water supply does not flow into the overflow pipe 12.

In addition, since the mounting piece B of the water pipe 13 is fixed to the hot water tank 2 with the protrusion 18 formed at the lower end fitted into the water supply connection pipe 19, the water pipe 13 does not swing when receiving water supply. , the water pipe 13 is held in a proper position, and the above-mentioned effects are not impaired even after long-term use, which brings about a practically beneficial effect.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing a conventional example, FIG. 2 is an enlarged sectional view of the main part of the present invention, and FIG. 3 is a perspective view of a water pipe. 1... Heat collector, 2... Hot water storage tank, 9...
...Discharge port, 10...Automatic water tap, 12.
...Overflow pipe, 13...Water pipe, 14...
...Horizontal part, 15...Rising part, 18...
...Protrusion, 19...Connection tube, B...
・Mounting piece.

Claims (1)

[Scope of utility model registration request] It is connected to a heat collector and has an automatic water supply faucet with a discharge port facing downward at the - side end, and a horizontally long hot water storage tank with an overflow pipe opened vertically below the discharge port on the installation surface of the automatic water supply faucet. In a natural circulation solar water heater, the upper and lower surfaces are opened, one end of the upper surface opening is extended to provide a mounting piece consisting of a horizontal part and a rising part, and the opposite side of the mounting piece forming side is left at the bottom. A water guide tube with a notched protrusion is inserted into the hot water storage tank by fitting the protrusion into the connecting tube for water supply to the heat collector and fixing the rising portion to the installation surface between the hydrant and the overflow pipe. A natural circulation solar water heater installed with the opening facing the above discharge port.