JPS61165552A - Hot water suplier of solar heat hto water apparatus - Google Patents

Abstract

PURPOSE:To prevent a water hammer phenomenon from occurring within a pipeline and to improve the response of a water feed tap by forming an auxiliary tank smaller in size than the solar heat hot water apparatus, installing the auxiliary tank at the lower part separately therefrom, connecting a water exhaust port having a ball float type operating valve to a hot water feed pipe from a hot water collecting port of the solar heat hot water apparatus, and further extending a water exhaust port of an overflow pipe into the auxiliary tank. CONSTITUTION:A solar heat hot wate apparatus A is constituted of a hot water storage tank 1, and a heat collector 2. An auxiliary tank B containing therein a ball type water feed tap 7 controlling the water supply and having a ball float type operating valve 10 is formed smaller than the hot water storage tank 1 of the sloar heat hot water apparatus A and further the auxiliary tank B is installed near to the ground. Therefore, the auxiliary tank B is installed near to the ground. Therefore, the auxiliary tank B is rapidly filled with water, whereby the response to the opening and closing operation of the ball tap water feed tap 7 is improved and supply wate is not fed intermittently. Accordingly, no water hammer phenomenon is produced and further damage in a rubber pad of the water feed tap 7 is small and inspection thereof is easily and safely carried out in the vicinity of the ground surface.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a hot water supply device for a solar water heater.

(Prior art) Solar water heaters, which were devised as an energy-saving measure, have improved in performance, and in recent years, a wide variety of types have become available, and the number of installed units has been increasing. ,
The hot water storage tank, which is equipped with a ball tap type faucet that controls water supply, an over 70-meter pipe that drains excess water, and a heat collector that absorbs solar heat and increases water temperature, are integrated into one unit. is installed on the roof of a house, etc.

In this solar water heater, as the amount of water in the hot water storage tank decreases due to the use of hot water, the ball of the ball tap type hydrant drops, and when the set amount of water is reached, the valve of the hydrant is released and water is supplied again. The inside of the hot water storage tank becomes full of water, and the valve closes as the ball rises.

The above-mentioned operations are repeatedly performed by operating a ball-tap type water faucet attached to a hot water storage tank in a water heater.

(Problems to be Solved by the Invention) However, in this conventional solar water heater, where the water supply is controlled using a ball tap type faucet attached to the hot water tank, the hot water tank becomes nearly full. ,
When the valve of a ball tap type water faucet closes too tightly, minute waves are generated on the water surface, which causes the ball to move up and down, resulting in an intermittent water supply. The water hammer phenomenon occurred, and the noise caused some people to feel uncomfortable.

Furthermore, since the volume of the hot water storage tank is large, it is difficult to completely shut off the water, so it takes a long time to shut off the water. In addition, the rubber pads on the valves are easily damaged, and repairing them requires climbing onto the roof, which is dangerous.Working on the roof, which can easily slip, is difficult for not only amateurs but also professionals. It is extremely dangerous work, and since the solar water heaters are used day and night, they can break down at night, and if repairs cannot be made, the repair will have to be done the next day.There are also problems in terms of maintenance management. was there.

(Means for Solving the Problems) The present invention has been made for the purpose of solving such conventional problems, and as a technical means for achieving this purpose, the present invention provides an over 70-tube tube. A solar water heater is formed by integrally forming a hot water storage tank part with a heat collector part, which has a hot water intake port communicating with the vent, and has a built-in ball tap type faucet and a ball float type operating valve. An auxiliary tank having a water spout formed at the bottom is formed smaller than the solar water heater and is installed separately below, and a water supply pipe of the ball tap type hydrant is extended to the water supply port of the hot water tank portion of the solar water heater. and a water outlet having a ball float type operating valve is connected to a hot water supply pipe from a hot water intake port of the solar water heater, and a drain port of an overflow pipe extends into the auxiliary tank. did.

(Function) Therefore, according to the present invention, first, when the hot water storage tank is full of water, the ball of the ball float type operating valve at the bottom of the auxiliary tank uses buoyancy and water pressure in the hot water supply pipe to cause the amount of water in the auxiliary tank to increase. The waterway rises against the pressure of the water, which keeps the waterway closed. In this state, when hot water is used, the hot water in the hot water storage tank flows out through the hot water supply pipe, causing the water level to drop. When the water level passes the hot water sampling port, air is introduced through the vent communicating with the hot water sampling port, the water level in the hot water supply pipe drops, and the buoyancy of the ball of the ball float valve becomes smaller than the water pressure in the auxiliary tank. The ball descends and opens a waterway, allowing water in the auxiliary tank to flow out through the hot water pipe, lowering the water level.

Then, when the water level in the auxiliary tank falls, the ball of the ball tap type hydrant in the tank lowers, opens the valve of the hydrant, and starts supplying water to the hot water tank. The water that flows into the hot water storage tank first flows into the hot water supply pipe through the hot water sampling port and gives buoyancy to the ball of the ball float operating valve, which causes the ball to close the waterway and fill the hot water pipe with water. When the hot water no longer flows out from the hot water storage tank, the water level in the hot water storage tank rises and becomes full. Even if the hot water storage tank becomes full, water supply continues.
This excess water flows into the auxiliary tank through the overflow pipe, and at this time, the ball of the ball float operated valve maintains the waterway closed, causing the water level in the auxiliary tank to rise, causing the ball of the ball tap type hydrant to rise. Push it up to close the valve, which will completely stop water supply.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In the figure, A indicates a solar water heater, and B indicates an auxiliary tank.

The solar water heater A includes a hot water storage tank section 1, a heat collector section 2,
It is formed in one piece and is mounted on the roof. or,
The hot water storage tank section 1 has a full water position l set therein,
An over 70-pipe 3 is provided for draining excess water. In addition, a water supply port 4 is provided at the full water position m, and the water supply port 4 is provided at the full water position m.
) A sprue inlet 5 is opened 100 mm below.

Next, the auxiliary tank B is installed near the ground below the solar water heater A, and has a ball tap type hydrant 7 having a water supply pipe 6 built therein, and is connected to the hot water storage tank part 1 of the solar water heater A. It is formed so that it does not peel off easily and allows the ball tap type water tap 7 to operate without any trouble. Further, a ball float type operating valve 10 is attached to a spout 9 formed at the bottom 8 of the auxiliary tank B. The ball float type operating valve 10 has a hollow ball 11 made of rubber.
an upper main body 14 having a contact surface 13 that is in close contact with the outer surface of the ball 11 and holds the water channel 12 in a closed state; and a lower body that holds the ball 11 while securing the water channel downward when the ball 11 descends. It is formed more integrally with the member 15, and the upper body 14 communicates with the spout 9. Further, n indicates the full water position where the ball moves upward and the ball tap type water tap 7 stops supplying water.

The water supply pipe 6 of the ball tap type water supply faucet 7 is connected to the pipe 1
6 extends to the water supply port 4 opened in the hot water storage tank portion 1 of the solar water heater A, and over 70 - the drain port 1 of the pipe 3
7 is extended to the auxiliary tank B by a pipe 18. Further, the hot water intake port 5 of the hot water storage tank section 1 is connected to a hot water supply pipe 20 which has a vent hole 19 opened above the hot water storage tank section 1, and the lower member 15 of the ball float operating valve 10 is connected to the hot water supply pipe 20. It is connected to the.

The solar water hot water supply system of this embodiment is constructed as described above. First, when the hot water storage tank 1 is full of water, the water level of the hot water storage tank 1 is at the full water position m, and the auxiliary tank B
The water level is also at the full water position n, and the ball tap type hydrant 7 is in a state where water supply is stopped.Furthermore, the ball 11 of the ball float type operating valve 10 is moved to the auxiliary tank B due to buoyancy and water pressure in the hot water supply pipe 20. The ball rises due to the water pressure due to the amount of water inside, and the outer surface of the ball comes into close contact with the contact surface 13 inside the main body 14, closing the waterway 12.

Next, when hot water is used, the hot water in the hot water storage tank section 1 is drained through the hot water supply pipe 20, and the water level begins to drop. When the water level falls and passes the hot water sampling port 5, air is introduced into the hot water supply pipe 20 through the vent 19, and the water level in the hot water supply pipe 20 continues to fall. And ball float type operating valve 10
When the water pressure due to the buoyancy of the ball 11 and the amount of water in the hot water supply pipe 20 becomes smaller than the water pressure due to the amount of water in the auxiliary tank B, the ball 11 leaves the contact surface 13 of the main body 14 and the water in the auxiliary tank B is released. The water is drained into the hot water pipe 20, and the water level in the auxiliary tank B begins to fall.

When the water level drops and the ball tap water tap 7 starts supplying water, water is supplied to the hot water tank 1 of the solar water heater A through the pipe 16. When the water level reaches the hot water sampling port 5 while water supply continues, the water flows into the upper body 14 of the ball float operating valve 10 through the hot water pipe 20 and the ball 11
, the ball 11 comes into close contact with the contact surface 13 and closes the waterway 12 again, and after filling the hot water supply pipe 20, the water level in the hot water storage tank 1 rises, and when it passes the full water position -, it reaches over 70 -. Drainage begins in pipe 3, and water flows to pipe 1.
At 8, water flows into the auxiliary tank B and the water level of the auxiliary tank B rises, and at the full water position n, the ball tap type hydrant 7 operates to stop the water supply, and the hot water tank 1 of the kQ solar water heater A and the water level of the auxiliary tank B rise. Auxiliary tank B becomes full of water.

Therefore, according to this embodiment, the solar water heater A is composed of a hot water storage tank part 1 and a heat collector part 2, and has a built-in ball tap type faucet 7 for controlling water supply, and also has a ball float type operating valve 10. Auxiliary tank B with solar water heater A
Since the auxiliary tank B is formed smaller than the hot water storage tank part 1 and is installed near the ground, the auxiliary tank B is quickly filled with water, and the responsiveness of the opening/closing operation of the ball tap type hydrant 7 is also improved. There is no longer any intermittent water supply, and therefore no water hammer phenomenon occurs. In addition, the rubber pad attached to the valve of the water tap 7 is less likely to be damaged, and inspection can now be carried out easily and safely near the ground.

The embodiments of the present invention have been described above with reference to the drawings, but
The specific configuration of the present invention is not limited to the embodiments described above.

For example, it is assumed that the water supply port 4 is opened at the full water position of the hot water storage tank 1, and the hot water sampling port 5 is opened 100+m below the full water position I, but the opening positions are not limited to the above. . Furthermore, although the ball 11 is made of rubber, it is not limited to the material and may be made of resin.

(Effects of the Invention) As explained above, according to the present invention, a solar water heater is composed of a hot water storage tank section and a heat collector section, has a built-in ball tap type faucet, and has a ball float type operating valve. A water spout is formed at the bottom, and an auxiliary tank smaller than the hot water tank of the solar water heater is installed separately below the solar water heater, so the ball tap type faucet has good responsiveness. There is no intermittent water supply, and therefore no water hammer phenomenon occurs, which eliminates unpleasant experiences6.Furthermore, there is less damage to the valve pads, and maintenance and inspection work can be done close to the ground, making it easier to operate from the roof. It is now possible to work safely without the risk of falling.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a hot water supply device of a solar water heater according to an embodiment of the present invention, and FIG. 2 is a diagram showing an installed state. 1: Hot water storage tank part 2: Heat collector part 3 Ni-bar flow pipe 4: Water supply port 5: Hot water sampling port 6: Water supply pipe 7 Two-volume tap type faucet 8: Bottom valve 9: Discharge port 10: Ball float type Operating valve 17: Drain port 19: Vent port 20: Hot water pipe A: Solar water heater B: Auxiliary tank 12 Full water position n: Full water position

Claims (1)

[Claims] 1) An overflow pipe and a hot water intake port that communicates with the ventilation port,
A solar water heater is formed by integrally forming a hot water storage tank part with a heat collector part, and an auxiliary tank having a built-in ball tap type faucet and a water spout having a ball float type operating valve formed in the bottom part. A water spout that is smaller than the solar water heater and is installed separately below, the water supply pipe of the ball tap type hydrant extends to the water supply port of the hot water tank of the solar water heater, and has a ball float type operating valve. is connected to a hot water supply pipe from a hot water intake port of the solar water heater, and a drain port of the overflow pipe extends into the auxiliary tank.