JPS5919904Y2 - In-wall storage heat storage tank - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a heat storage tank in a solar heat receiving device.

In conventional heat receiving devices that utilize solar heat, for example, a water heater placed on the roof requires a large-capacity hot water tank, so the strength of the roof must be increased accordingly, and installation requires major construction work. Also, it looks extremely unsightly.

An object of the present invention is to eliminate the above-mentioned drawbacks and provide a hot water tank and heat storage tank which is housed in a wall and also serves as a heat storage tank, and which is small in size and has a large heat storage capacity.

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

A hot water tank that stores hot water received from the solar heat collector is used as a heat storage tank.

The heat storage tank is installed inside the wall between the pillars of the building, as described in detail below.

In these heat storage tanks, there is a hydrated compound that causes an exothermic endothermic reaction due to temperature change, such as CaCl2.6H2.
A heat storage medium cylinder (hereinafter referred to as a heat storage medium enclosing cylinder) in which 0 etc. are sealed is built-in.

In the case of CaCl2.6H20, the following reaction occurs at 38°C.

Therefore, the water temperature in the heat storage tank increases to 38℃ due to solar heat reception.
When the temperature exceeds that level, an endothermic reaction occurs, the hydrate decomposes, and water is separated.

Next, when the solar heat decreases and the water temperature becomes 38° C. or lower, an exothermic reaction occurs and CaCl2 and water combine, thereby suppressing the temperature drop.

The details of the heat storage tank will be explained below.

In the cross-sectional view in Figure 1 and the longitudinal cross-sectional view in Figure 2,
The heat storage tank 1 is wrapped on the outside with a heat insulating material 2 and is housed between columns 3.3.

Inside the heat storage tank 1, a plurality of cylindrical rod-shaped heat storage medium enclosure containers 4 are vertically fixed to the upper and lower walls by supporting members 5, and are arranged in parallel.

The inside of the heat storage tank 1 is partitioned into a plurality of sections in the vertical direction by a baffle plate 6, and the length direction of the baffle plate 6 (horizontal direction in FIG. 2)
An upper and lower compartment communication port 6a is provided in a portion adjacent to the tank wall.

That is, from above, the hot water injection pipe 7a from the solar heat collecting section is placed on the first baffle plate on the opposite side in the diagonal direction from the installation side (on the right side in FIG. 1), and then on the second baffle plate. Upper and lower compartment communication ports 6a are provided alternately in this order on the left side, and a meandering waterway is formed along the vertical direction.

A cold water outlet pipe 7b for returning cold water to the solar heat receiving section is provided at the lower end of the meandering waterway.

The heat exchange pipe 8 for heating the water used has heat absorption fins on its outer surface and is arranged in a meandering manner in the horizontal direction and the vertical direction.

That is, a cold water outlet 8a to which tap water is supplied is provided in the lowermost section partitioned off by the baffle plate, and a hot water outlet 8b connected to a faucet is provided in the uppermost section.

First, the heat exchange pipe 8 is constructed by connecting these inlets and outlets.
It is arranged in a meandering manner between the rows of the heat storage medium enclosing cylinders 4 in the lowest compartment, and then reaches the next upper compartment, and after being meandered in the same way as before, it ascends to the uppermost compartment, and the end is connected to the hot water supply pipe. 8b
It is connected to a hot water faucet.

The thickness of the heat storage tank 1 including the heat insulating material 2 is equal to the width of the pillar 3, and an interior material 9 and an exterior material 10 are stretched over both pillars on both sides and are sealed to the steel pillar 3, respectively. Ru.

According to the above structure, hot water heated by a solar heat receiving part such as a roof material incorporating a heat pipe or a water heater is introduced into the heat storage tank 1 through the hot water injection pipe 7, and in the tank,
Heat is absorbed and stored by decomposition of the hydrated compound within the heat medium enclosure cylinder 4.

When the temperature inside the heat storage tank 1 drops to 38° C. or lower, such as at night or on rainy days, the hydrated compounds inside the enclosure cylinder 4 combine to generate heat, suppressing a drop in the temperature of the hot water inside the tank.

Therefore, the tap water is heated by flowing through the heat exchange pipe 8, and is supplied to the faucet as hot water.

Therefore, the hot water is also suitable for drinking.

The water in the heat storage tank 1 may be connected to another faucet for general use.

As the heat storage medium, the one listed above is used.

To adjust the heat capacity of these media, either (1) change the mixing ratio of two or more of the above-mentioned different media and seal them in a container, or (2) change the number of containers filled with the same type of media and This is done by arranging containers filled with different media in different ratios to the number of containers in the tank.

In addition to the rod-shaped heat storage medium enclosing cylinder, (1) a small spherical, tetrapot-shaped, star-shaped, or other shaped container in which a large number of media are enclosed in a compartment; (2) a thin flat plate; A type of container in which the same medium as above is sealed and arranged in parallel at multiple intervals in a tank is used.

Furthermore, as a structure of the heat storage tank, as shown in the plan view of FIG. 3, baffle plates 11 may be provided in parallel in the horizontal direction so as to partition the heat storage tank in the horizontal direction as well.

In addition, when the heat storage medium enclosure is in the form of a rod or a plate, as shown in the longitudinal cross-sectional view of FIG. 4, the arrangement direction thereof can be laid down horizontally, and the containers can be arranged in parallel in the vertical and horizontal directions.

In addition, the heat exchange pipe 8 for supplying tap water in the above embodiment
In addition, another meandering heat exchange pipe (not shown) is installed in the same way, and the remaining hot water from the bath, boiler drainage, heated air from the ventilation fan, high temperature air discharged from the boiler, or high temperature from the water heater and bath burner are installed in the pipe. By introducing waste heat fluid such as gas, this waste heat can be utilized and contribute to energy saving.

If the waste heat fluid such as the remaining bath water is circulated for a certain period of time using a pump, fan, etc. by operating a timer, the waste heat recovery will be further improved.

When the temperature of the water in the heat storage tank is low, as shown in FIG. 5, a heater 20 is provided in the circulation waterway so as to be switchable in a bypass manner, and a burner 21 is used to reheat the water.

Gokoku's 30 is the solar heat receiving part, P is the pump, 40 is the bathtub,
50 is a tap water supply pipe.

As described above, the heat storage tank of the present invention is a heat storage tank that is housed between the pillars of a wall body, and a container in which a phase-change heat storage medium is sealed is built into the heat retention tank body, and the inside of the tank body is surrounded by baffles. The baffle plate is partitioned into at least a plurality of upper and lower compartments, and the baffle plate is provided with a communication hole that communicates the upper and lower compartments so as to pass through these compartments and form an up-and-down meandering waterway, and water is accommodated to fill all the compartments. The uppermost section was provided with an inlet for heated water from the solar heat receiving section and an outlet for hot water to be used, and the lowermost section was provided with an outlet for heated water and an inlet for cold water, so that the water was supplied to the heat exchange pipe. Tap water is heated and turned into hot water, which is then connected and supplied to the faucet.

Therefore, there is no need to reinforce the roof, no installation work is required on the roof, and the wall where the heat storage tank is installed can be omitted, which saves construction time.

Furthermore, since there is no need to install a tank on the roof, many benefits can be obtained, including a good appearance.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a heat storage tank showing one embodiment of the present invention, Fig. 2 is a sectional view taken along line II-II in Fig. 1, and Figs. 3, 4, and 5 are examples of respective variations. FIG. 1... Heat storage layer, 2... Heat insulation material, 3...
...Column, 4... Heat storage medium enclosure container, 6,1
1...Baffle plate, 7...Hot water injection pipe, 8
...Heat exchange pipe, 9 ...Interior material, 1
0...Exterior material.

Claims (1)

[Scope of utility model registration request] It is a stochastic tank that is housed between the pillars of a wall, and a container containing a phase-transformable heat storage medium is built into the heat-retaining tank, and the inside of the tank is partitioned into a plurality of sections at least vertically by baffles, and these sections are The baffle plate is provided with a communication hole that communicates the upper and lower sections to form an up-and-down meandering waterway, and water is stored filling all the sections, and the uppermost section is filled with water from the solar heat receiving section. An in-wall storage heat storage tank characterized in that a heated water inlet and a hot water outlet for use are provided in the lowermost compartment, and a heated water outlet and a cold water inlet are provided in the lowermost compartment.