JPS5956654A - Hot water storage device - Google Patents

Abstract

PURPOSE:To enable to discharge hot water with no lowering of hot water temperature in a hot water storage tank by a structure wherein a hot water supply passage and a feed water passage, both of which are equipped with ON-OFF valves respectively and connected to a common water supply device in order to selectively discharge hot water through each of said passages, are provided on the hot water storage tank. CONSTITUTION:In the hot water storage device, the water in the hot water storage tank 6 is circulated by means of a circulating pump 9 and heated at a heat exchanger 4 by heat transfer medium, which is heated at a solar heat collector 1 and circulated by a circulating pump 5. In this case, the hot water supply passage 12 interposed by the on-off valve 13 therein is connected to the middle side wall of the hot water sotorage tank 6. On the other hand, the feed water passage 14 interposed by the on-off valve 15 therein is connected to the lower side wall of the hot water storage tank 6. Both the passages 12 and 14 are communicated to the water supply device 16 such as rooftop storage tank or the like by means of a feed water pipe 18 interposed by the on-off valve 17. The feed water pipe 18 is connected at its other end through a boiler 20 serving as an auxiliary heating means to a hot water supply part 19. Consequently, when the hot water discharge through the hot water supply passage 12 is requested, th valves 15 and 17 are controlled to close, while, when the hot water dischrge through the feed water passage 14 is requested, the valves 13 and 17 are controlled to close

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention d.
-

Structure of the conventional example and its problems The hot water storage tank in the conventional hot water storage device is an open type, and in particular, a horizontal type hot water storage tank whose width rIJ is larger than its height is used.・I-C+1. l, water gamma: emotion 1 skin (
Temperature stratification that takes advantage of the density difference between small and small tanks is difficult to create, and when hot water is supplied from a small tank, water cannot be supplied to the tank at the same time, resulting in a decrease in the quality of hot water in the tank. As a result, it had the disadvantage of extremely poor temperature characteristics.

OBJECTS OF THE INVENTION The present invention takes into account the drawbacks mentioned in item 1-1 above and provides a hot water storage device with extremely excellent temperature characteristics.

Structure of the Invention In order to achieve this object, the hot water storage device of the present invention opens the on-off valve of the hot water supply passage and closes the on-off valve of the water supply passage when hot water is discharged from the hot water supply passage of the hot water storage tank. and when hot water is discharged from the water supply passage of the hot water storage tank, the on-off valve of the water supply passage is opened, and the on-off valve of the hot water supply passage and the water supply device is closed. No. 5 Water supply 1 Which hot water outlet comes from
Even if there was a situation, water was no longer supplied to the hot water tank, and as a result, during the Song Dynasty, the temperature of the water in the hot water tank was low.
Therefore, it is possible to provide a hot water storage device with extremely superior temperature characteristics.

DESCRIPTION OF EMBODIMENTS: The present invention will be explained based on drawings showing embodiments thereof.

In Fig. 1, 1 is a heat collector, and the heat collectors 1Q, j,
The pipes 2 and 3 are connected to the heat exchanger 4, and the distribution pump 2 is equipped with a circulation pump 5.
It is a horizontal hot water storage tank with A'M Ill larger than the height, and this 11"j hot water tank 6d has two pipes 7 and s (2 connected to the heat exchanger 4 from tc, and a U pipe 7 and a circulation pop 9). 1o(r;f, the seven ends of the hot water tank 6 are open 1
-1 part 6' is closed, and this difference 10 has a ventilation pipe 11
has been established.

12&:, 1.11'j-A hot water supply passage provided on the middle side wall of the hot water tank 6.
A valve 13 is provided.

14v, ], in the water supply passage provided on the F section side wall of the hot water tank 6,
This water supply passage 14 is provided with an on-off valve 15.

Reference numeral 16 denotes a water supply device such as a production water tank, and a water supply pipe 18 having an on-off valve 1 in the middle is connected to this water supply device 16, and this water supply pipe 18 is connected to the water supply passage 14 and the hot water supply passage 1.
A boiler 20 is installed between the hot water supply unit 19 at the tip of the hot water tank 2 and a boiler 20 that heats the hot water in the hot water tank 6 when the temperature is low. The liquid level relay 21 has at least three electric currents to detect the liquid level in the hot water storage tank 6.
b, 21c, and controls the opening/closing of the plurality of open/close valves 13, 16, 1γ together with a flow switch 22 that detects the discharge of hot water from the hot water storage tank 6.

The operation in the above configuration will be explained. First, solar heat is absorbed by the heat collector 1, and the heated heat medium is circulated to the heat exchanger 4 by the circulation pump 5.The heat exchanged by the heat exchanger 4 is then transferred to the hot water storage tank 6 by the circulation pump 9. Circulate hot water tank 6
Heat the water inside.

When using the hot water in the hot water storage tank 6,
In this case, when hot water is dispensed from the hot water supply passage 12 provided on the central side wall of the - Open the on-off valve 13 of the hot water supply channel 12.

When hot water is discharged from the hot water supply west route 12 (1:15, in Figure 2, the on-off valve 1 of water supply 1Fn route
6 and water supply i=+'; 1 s on-off valve 17 is closed. The water level in the hot water storage tank 6 rises due to this hot water discharge, and when the water level lowers to the lower end position h2':t of the electrode 21b of the liquid level relay 21, as shown in FIG. At the same time, the on-off valve 13 of the water supply passage 14 is closed, and the on-off valve 15 of the water supply passage 14 is formed. As a result, the hot water in the hot water tank 6 is transferred to the water supply passage 1 located at the bottom of the hot water tank 6.
4. There is also a hot spring. Furthermore, hot water continues to be supplied, and the water level in the hot water storage tank 6 reaches F-;
If it falls below the position h1, there is a risk of air being sucked in, so as shown in FIG.
5 is closed to stop hot water from being discharged from the hot water storage tank 6 1-1, and the on-off valve 1-1 of the water supply pipe 18 is opened.

In other words, when the hot water from the hot water storage 4iIjI6 stops, the operation of the flow switch 22 also stops.
As shown in i'tx, the on-off valve 15 of the water supply passage 14 is opened, and water is supplied from the water supply device 1f116 into the hot water tank 6 via the water supply pipe 18 and the water supply 1 route 14. - When the water level in the hot water storage tank 6 reaches the lower end position 53 of the electrode 21C of the liquid level relay 21, the on-off valve 15 of the water supply passage 14 and the on-off valve 17 of the water supply pipe 18 are closed, as shown in FIG. It is closed and water supply to the hot water tank 6 is stopped.

Effects of the Invention According to the present invention, as shown in FIG.
The on-off valve of the water supply passage and the water supply device is closed, and when hot water is discharged from the water supply passage of the hot water storage tank, the on-off valve of the water supply passage is opened, and the on-off valve of the hot water supply passage and the water supply device is closed. The water surface in the hot water tank (S)
In accordance with Section 4, regardless of whether hot water is discharged from the hot water supply passage or the water supply passage of the ITi' hot water tank, water will not be supplied into the hot water tank ()), and as a result, the pumping of the hot water storage tank ()] will no longer occur. Otsu 11, 1 or low [-1- will no longer be / Ko6su, temperature 4FJ'
l 1/(-the opening device, l, lfi (it is possible).

[Brief explanation of the drawing]

Figure 1 is a
Figures 1 to 5 are explanatory diagrams of the operation of the storage device. 6-Hot water storage tank, 12 Hot water supply passage, 13, 15° 17.
・Opening/closing valve, 14-Water supply d path, 16 Water supply device, 21
Liquid level relay, 22 flow isoji. Name of Sokuto Orator: Masao Nakao and 1 other person 1st
Figure 6 ---\? 0 Figure 2 Figure 3

Claims (1)

[Claims] A hot water supply passage and a water supply passage each having an on-off valve are provided.
This hot water storage tank, a water supply device that supplies water to the water tank through a water supply line and has an on-off valve in the middle, and a water supply system that senses the liquid level of the hot water tank in multiple stages and stores hot water. It is equipped with a flow switch that detects hot water coming out of the tank and a liquid level relay that controls opening and closing of the plurality of on-off valves, and when hot water comes out from the hot water supply passage of the hot water storage tank, CI: opens the on-off valve of the hot water supply passage and The on-off valves of the water supply path 1jIi and the water supply device are closed7, and when hot water is discharged from the water supply passage of the hot water storage tank, the on-off valve of the water supply passage is opened, and the on-off valve of the hot water supply passage and the water supply device is closed. The configured hot water storage device.