JPH0144956Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a heat storage tank.

(Prior Art) As shown in FIG. 8, a conventional heat storage tank of this type has a partition wall a extending downward and a partition wall b extending upward from the bottom of the tank. C... are divided and a flow path is formed between adjacent water tanks.

(Problem to be solved by the invention) In the heat storage tank, if the direction of water flow is the same during heating and cooling, in winter
The specific gravity of hot water W at ℃ is relatively light at 0.9 kg/, and it is stored sequentially from the top to the bottom of the tank.
As shown in Figure A, all tanks can be used effectively, but
In the summer, as shown in Figure 8B, every other tank has low efficiency.

This is because the specific gravity of cold water K at 5°C is as high as 1.1 kg/, so the cold water is stored in the lower part of the first tank A and then moved to the adjacent tank B.

Moreover, as shown in FIGS. 8C and 8D, if the water flow direction is reversed, the heat storage tank becomes advantageous in summer and disadvantageous in winter.

(Means for solving the problem) Considering the above facts, since hot water has a light specific gravity, it is stored from the upper part of the tank.
It is advantageous for the communication pipe to be located at the bottom, and since cold water has a heavy specific gravity and is stored from the bottom of the tank, it is advantageous for the communication pipe to be located at the top.

Based on these facts, the present invention was proposed in order to solve the problems of the conventional heat storage tanks. A hot water communication pipe having an inflow pipe and an outflow pipe extending downward in the upstream tank and upward in the downstream tank, and a tank upstream from both ends of the horizontal pipe that communicates the two tanks. An opening in each inflow pipe in each of the hot water and cold water communication pipes is connected to an inflow pipe extending upward and downward in the downstream tank, and a cold water communication pipe to which an outflow pipe is extended. This relates to a heat storage tank characterized in that a lid member that opens and closes depending on the difference in specific gravity due to water temperature is disposed in the heat storage tank.

(Function) Since the present invention is constructed as described above,
When hot water is moving between adjacent tanks via the hot water communication pipe, a lid member is attached to the upper end opening of the inflow pipe that extends upward in the upstream tank of the cold water communication pipe. The water settles due to the difference in specific gravity with the hot water in the tank and blocks the inlet of the cold water communication pipe.

The hot water in the upstream tank moving through the hot water communication pipe flows into the downstream tank from below via the outflow pipe of the communication pipe.

In addition, when cold water is being transferred between adjacent tanks via a cold water communication pipe, a lid attached to the lower end opening of the inflow pipe that extends downward in the upstream tank of the hot water communication pipe The member rises due to the difference in specific gravity with the cold water in the tank and blocks the hot water communication pipe.

The cold water in the upstream tank moving through the cold water communication pipe flows into the downstream tank from above via the outflow pipe of the communication pipe.

(Effect of the invention) As described above, according to the invention, between adjacent tanks, the directions of the inflow pipe and the outflow pipe in the upstream tank and the downstream tank are opposite to each other, and the opening of each inflow pipe is By providing a communication pipe dedicated to hot water and a communication pipe dedicated to cold water, which are equipped with a lid member that opens and closes depending on the difference in specific gravity due to water temperature, when hot water is moving to the communication pipe for hot water, the communication pipe for cold water is closed. When the tank is closed and cold water is moving to the cold water communication pipe, the hot water communication pipe is closed, and in both summer and winter, heat is fully stored in the tank and then transferred to the next tank. This means that the entire heat storage tank can be used effectively without changing the flow direction of the fluid.

(Example) The present invention will be described below with reference to the illustrated embodiments.

1 and 2 are hot water communication pipes and cold water communication pipes installed between adjacent tanks A and B and between B and C, and the hot water communication pipe 1 is connected to both adjacent tanks A, B, B, An inflow pipe 1b and an outflow pipe 1c extending downward in the upstream tank and upward in the downstream tank are installed at both ends of the horizontal pipe 1a that communicates with the cold water pipe 2. At both ends of the horizontal pipe 2a that communicates the two adjacent tanks A, B, B, and C, there are an inflow pipe 2b and an outflow pipe 2c that extend upward in the upstream tank and downward in the downstream tank, respectively.
has been extended.

The inlets and outlets of the inflow pipes 1b, 2b and the outflow pipes 1c, 2c of the communication pipes 1, 2 are both bell-mouth shaped so as to reduce water resistance.

Further, four surrounding rods 3 are protruded from the inlet of each of the inflow pipes 1b, 2b, and a bottom piece 4 is attached to the end of each of the surrounding rods 3, and between the bottom piece 4 and the surrounding rod 3, A spherical lid member 5 is installed inside to be able to move up and down. (See Fig. 5) As shown in Figs. 6 and 7, the lid member 5 is a plastic member made of a pair of hemispherical pieces 5a, 5a, and a weight 6 is inserted inside to hold the entire body. The weight has been adjusted.

For example, in the case of 40℃ hot water (specific gravity 0.9Kg/) and 5℃ cold water (specific gravity 1.1Kg/), specific gravity 0.9Kg/
Weight 6 so that it takes an intermediate value from 1.1Kg/
Just select the weight. After adjusting the weight of the lid member 5 in this way, seal the hemispherical piece 5 with the sealing material 7.
a, 5a are sealed to prevent water from entering the inside of the lid member 5.

The communication pipes 1 and 2 are made of a light material such as a vinyl chloride pipe, and as shown in FIG. 1, the hot water communication pipe 1 and the cold water communication pipe 2 are arranged as close to the end of the tank partition wall as possible. , and the communication pipes 1 and 2 are arranged alternately for each tank.

Since the illustrated embodiment is configured as described above, hot water W having a low specific gravity enters the tank A in the winter from the lower end of the inflow pipe 1b of the hot water communication pipe 1 that extends downward into the tank. Then, it flows out into the tank B from the upper end of the outflow pipe 1c extending upward into the tank.

When hot water is moving through the hot water communication pipe 1 in this way, the lid member 5 settles in the hot water with a small specific gravity and closes the inlet of the inflow pipe 2b of the cold water communication pipe 2, thereby preventing the communication. The tube 2 is now in a closed state.

Also, in summer, cold water K with a large specific gravity enters into tank A from the upper end of the inflow pipe 2b extending upward into the tank in the cold water communication pipe 2, and flows out into tank B from the lower end of the outflow pipe 2c extending downward into the tank. do.

When the cold water is moving through the cold water communication pipe 2 in this way, the lid member 5 rises in the cold water having a large specific gravity and closes the inlet of the inflow pipe 1b of the hot water communication pipe 1. 1 is in a closed state.

According to the illustrated embodiment, as described above, the hot water communication pipe 1 and the cold water communication pipe 2, which are configured such that the vertical directions of the inflow pipes 1b, 2b and the outflow pipes 1c, 2c are reversed, are connected to one another. Hot water is supplied to the hot water communication pipe 1 by connecting adjacent tanks as a set and by attaching a lid member 5 that opens and closes depending on the difference in specific gravity to the opening of each of the inflow pipes 1b and 2b. When the cold water is moving, the cold water communication pipe 2 is closed, and conversely, when the cold water is moving to the cold water communication pipe 2, the hot water communication pipe 1 is closed. Since heat is fully stored in the heat storage tank, it can be transferred to the next tank, and the entire heat storage tank can be used effectively without changing the direction of fluid flow.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of a heat storage tank according to the present invention, and FIGS. 2 and 3 are taken along arrow X-X in FIG. 1.
In the figures, FIG. 2 shows the conditions in winter, and FIG. 3 shows the conditions in summer. Figure 4 is an arrow Y-Y diagram in Figure 1.
FIG. 5 is a perspective view showing the end of the inflow pipe, FIG. 6 is an exploded perspective view of the lid member, FIG. 7 is a perspective view of the lid member, and FIG.
Figures A and 8B are vertical cross-sectional views showing the heat storage process in the winter of a conventional heat storage tank, and Figures 8C and 8D are vertical cross-sectional views showing the heat storage process of the conventional heat storage tank in the summer. A, B, C...Tank, 1...Hot water communication pipe, 1a
...Horizontal pipe, 1b...Inflow pipe, 1c...Outflow pipe,
2...Cold water communication pipe, 2a...Horizontal pipe, 2b...
Inflow pipe, 1c... Outflow pipe, 5... Lid member.

Claims (1)

[Scope of utility model registration request] Hot water communication between adjacent tanks, with inflow pipes and outflow pipes extending downward into the upstream tank and upward into the downstream tank, respectively, at both ends of a horizontal pipe that communicates the two tanks. The pipe is connected to a cold water communication pipe in which an inflow pipe and an outflow pipe extend upwardly in the upstream tank and downwardly in the downstream tank from both ends of the horizontal pipe that communicates the two tanks. In addition, a heat storage tank characterized in that a lid member that opens and closes depending on the difference in specific gravity due to water temperature is disposed at the opening of each inlet pipe in each of the hot water and cold water communication pipes.