JPS6239343B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot water storage tank, and particularly to a hot water storage tank from which the highest temperature water within the tank can be collected.

Conventional hot water storage tanks have a configuration in which water is stored, heated, and stored, and hot water is supplied only through a hot water supply pipe that has a water intake in the tank.

This is because the water intake port of the hot water pipe remains at a constant position regardless of changes in the water level due to hot water supply.
As the water level changes, hot water cannot be supplied from the surface water.

That is, since the water heated by the heating means has a lower specific gravity than cold water, it is pushed up to the hot water storage surface, and the closer to the surface, the higher the temperature becomes.

Therefore, the above-mentioned conventional system has the disadvantage that hot water cannot always be supplied to the surface water, which is at a high temperature due to the difference in water temperature and specific gravity, as the water level changes.

Therefore, one solution to this problem is to float the float with the water intake attached on the water surface and connect the water intake to the hot water pipe via a flexible pipe, or to use a structure that combines the flexible pipe and the hot water pipe. things have been developed.

However, such flexible tubes are subject to material limitations in order to obtain sufficient elasticity, and no consideration has been given to the fact that it is difficult to maintain elasticity over a long period of time.

The present invention solves the drawbacks of the conventional methods as described above, and solves the problem of the difference between the amount of water supplied and the amount of hot water supplied, that is, when the amount of hot water supplied is larger than the amount of water supplied, and when water is supplied from a water replenishing device such as a ball tap. A float pipe is installed as a means of supplying hot water to the surface, which is gradually becoming hotter, even when the plant is shut down, and a hot water supply pipe that does not use a flexible pipe is guided to the float pipe, making it possible to supply hot water to the surface water. Another object of the present invention is to provide a hot water storage tank equipped with hot water supply pipes that can maintain a long service life without being restricted by materials.

A feature of the present invention is that the hot water storage tank has a water replenishment device for a hot water storage tank, stores tap water using the water replenishment device, stores hot water heated by a heating means, and supplies hot water through a hot water supply pipe. In this step, the tip opening of the hot water supply pipe is guided into the hot water storage tank, and a float pipe consisting of a float body and a hot water collection pipe is arranged surrounding the tip opening of the hot water supply pipe, and the upper part of the hot water collection pipe is arranged so as to surround the top opening of the hot water supply pipe. The hot water storage tank is provided with a float body attached thereto so that the float pipe can be moved up and down according to changes in water level, and a water intake port is provided near the water surface of the hot water collection pipe body.

Next, one embodiment of the present invention will be described based on the drawings.

First, the drawing is a system diagram including a hot water storage tank according to an embodiment of the present invention, and shows the hot water storage tank in an open cross section.

In the figure, 1 is a hot water tank, 2 is a pole tap related to the water supply device, 3 is a water stop valve, and 4 is a float.
5 is a float pipe, 5a is a float body, and 5b is a hot water collection pipe body.

Moreover, 6 is a hot water supply pipe, and this hot water supply pipe does not use a flexible pipe. 7 is a hot water pump, 8 is a faucet,
9 is a circulation pipe, 10 is a circulation pump, 11 is a heating device related to a heating means, and 12 is a water intake port provided in the hot water collection pipe body 5b.

To explain in more detail, there is a hot water supply pipe 6 inside the hot water storage tank 1.
The tip opening 6 of this hot water supply pipe 6 is guided.
The structure is such that a float pipe 5 consisting of a float body 5a and a hot water collection pipe body 5b is arranged surrounding a.

Thus, the float pipe 5 includes a float body 5a that is to be positioned on the water surface of the hot water storage tank 1, and a water intake port 12 that is provided integrally with the float body 5a and is located directly below the float body 5a.
It is formed by a hot water collection pipe body 5b having a.

That is, the water intake port 12 is provided directly below the float body 5a in the hot water collection pipe body 5b so that it can be located near the water surface of the hot water storage tank 1 to collect hot water.

The hot water collection pipe body 5b is formed into a bottomed cylindrical shape having an upper end opening, and is configured to slidably introduce the tip opening 6a of the hot water supply pipe 6 through the upper end opening. The pipe 5 moves up and down as the water level changes in the hot water storage tank 1, making it possible to respond to the water level.

Next, the operation of the device having the above configuration will be explained.

A ball tap 2 connected to the water supply via a water stop valve 3 is fixed to a hot water storage tank 1, and water is stored up to a reference water level by opening and closing of the water stop valve 3 and operation of a float 4.

This stored water is absorbed through a circulation pipe connected to a circulation pump 10 and a heating device 11, becomes high-temperature water by passing through the heating device 11, and is discharged into the hot water storage tank 1.

The high temperature water in the valve rises to the surface of the hot water storage tank 1 due to the difference in high temperature specific gravity.

The float pipe 5 has a hot water collection pipe body 5b with a water suction port 12 just below the surface water, and is moved up and down as the water level changes due to hot water supply.
As shown in the figure, the surface water at a high temperature is absorbed through the water.

Thereby, the hot water supply pipe 6 supplies the high temperature water absorbed into the float pipe 5 by opening and closing the faucet 8 connected to the hot water supply pump 7.

That is, according to the above-mentioned embodiment, it is possible to always supply hot water to the surface water, which is at a high temperature due to the difference in water temperature and specific gravity.

In addition, if there is a difference between the amount of water supplied and the amount of hot water supplied, that is, if the amount of hot water supplied is greater than the amount of water supplied, or if the water supply from the water supply device, such as the ball tap 2, is stopped, the temperature will gradually increase. This makes it possible to supply hot water using surface water.

In addition, since the hot water supply pipe 6 does not use a flexible pipe (for example, a bellows-shaped flexible extensible pipe), there is no restriction on the material used to provide elasticity, and there is a risk that the life of the hot water supply pipe will be shortened. Nor.

Furthermore, the hot water supply pipe 6 of the above embodiment is taken out from the upper part of the hot water storage tank 1 and hot water is supplied by the hot water supply pump 7, and since the hot water supply pipe 6 does not pass through the low temperature area in the lower part of the hot water storage tank 1, There is also an effect unique to this embodiment that the high temperature water in the hot water supply pipe is not cooled by the cold water in the lower part of the hot water storage tank 1.

In addition, in the above, it is necessary to keep in mind the condition that the amount of hot water entering from the water intake port 12 is larger than the hot water supply capacity of the hot water supply pump 7, and if the opposite condition is met, the hot water collection pipe 5b will float. It should also be noted that the amount of water supplied from the ball tap 2 should be greater than the capacity of the hot water pump 7.

In summary, according to the present invention, regardless of changes in the water level in the hot water storage tank due to hot water supply, etc., it is possible to always supply hot water with the surface water that is at the highest temperature in the tank due to the difference in water temperature and specific gravity. In addition, it is possible to provide a hot water storage tank equipped with a hot water supply pipe that can maintain a long service life without being subject to material restrictions, and can be said to be an invention with excellent practical effects.

[Brief explanation of the drawing]

The drawing is a system diagram including a hot water storage tank according to an embodiment of the present invention, and shows the hot water storage tank in an open cross section. 1... Hot water tank, 2... Ball tap, 3... Water stop valve, 5... Float pipe, 5a... Float body,
5b... Hot water collection pipe body, 6... Hot water supply pipe, 9... Circulation pipe, 11... Heating device, 12... Water intake port.

Claims (1)

[Scope of Claims] 1. A hot water storage tank having a water replenishment device for a hot water storage tank, storing tap water using the water replenishment device, storing hot water heated by a heating means, and supplying hot water through a hot water supply pipe. In the tank, the tip opening of the hot water supply pipe is guided into the hot water storage tank, and a float pipe consisting of a float body and a hot water collection pipe body is arranged surrounding the tip opening of the hot water supply pipe, and the hot water collection pipe body is A hot water storage tank, characterized in that a float body is attached to the upper part of the tank, the float pipe can be moved up and down according to changes in water level, and a water intake port is provided near the water surface of the hot water collection pipe body. 2. In what is stated in claim 1,
A float pipe is a hot water storage tank that is formed by a float body that is positioned on the water surface of the hot water storage tank, and a hot water collection pipe body that is provided integrally with the float body and has a water intake port directly below the float body. 3 In what is stated in claim 1,
The hot water collection pipe body is formed into a bottomed cylindrical shape having an upper end opening, and the tip opening of the hot water supply pipe is slidably guided through the upper end opening of the hot water storage tank.