JP3194613B2 - Damping heat storage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping heat storage device for storing heat storage water for cooling and heating and for suppressing vibration of a building caused by wind or an earthquake.

[0002]

2. Description of the Related Art In recent years, various heat storage systems have been used to reduce thermal energy for air conditioning of buildings.
Generally, water is used as a heat storage body in terms of heat capacity and management cost.

In this case, a heat storage tank for storing heat storage water must be provided. Conventionally, this heat storage tank also has various forms, and a heat storage efficiency for storing heat (cold heat or warm heat) obtained from a heat source and a heat storage tank. Considering the stability of the temperature of the water supplied from the tank to the building side, a so-called stratified heat storage tank is excellent because of the temperature distribution in the tank and the behavior of the water flowing in and out.

On the other hand, as a means for reducing long-period vibrations caused by wind or earthquake in buildings, there is a vibration damping device as a so-called liquid damper utilizing sloshing of liquid. When such a vibration damping device is used for a building, for example, the mass of the stored water is set to a predetermined range so as to match the vibration period inherent to the building. Then, when the building vibrates, the stored water shakes with a phase difference of about 1/4 cycle, and buffers the vibration of the building.

In providing such a vibration damping device,
It is reasonable to achieve this in the thermal storage tank,
The inventors of the present application have previously disclosed various vibration damping devices that can also be used as a heat storage tank (Japanese Patent Application Laid-Open No. Sho 62-101765).
No. JP-A-01-48979).

[0006]

By the way, in order to provide a vibration damping function in the construction of the above-mentioned heat storage tank, if the amount of water to be stored is made to match the vibration cycle of the building each time, the cost in design and construction is reduced. There is a problem that the reduction cannot be achieved, and it is difficult to use a heat storage tank that has been standardized in advance as a heat storage system, so that the heat storage tank cannot be unitized. Therefore, it is considered that a partition is appropriately provided in a heat storage tank having a predetermined volume to adjust the apparent volume (effective mass) of free water. However, the above-described heat storage efficiency and temperature distribution in the stored water are hindered by the partition, and a stratified type. There was a difficulty in forming the heat storage tank.

[0007] In view of such circumstances, the present invention is a stratified heat storage device, and can adjust the vibration cycle in accordance with the building to be attached, and can be unitized. It is intended to provide a vibration damping heat storage device.

[0008]

In order to solve the above-mentioned problems, in the vibration damping heat storage device of the present invention, the heat storage water for air conditioning is provided along with the building, and is stored by the heat storage water. A vibration damping heat storage device that suppresses vibration excited by the building, a storage tank formed in a rectangular parallelepiped and having a long side positioned substantially horizontally, and an upper layer area on one side wall including a short side of the storage tank. And the heat storage water inlet / outlet respectively provided in the lower layer area on the other side wall side including the short side, and provided substantially parallel to the side wall including the long side of the storage tank and substantially in the upper layer area of the storage tank, A partition plate movably formed in a direction parallel to a short side of the tank.

[0009]

According to the present invention, when hot water is stored and used, cold water is stored and introduced into and out of the storage tank through an entrance provided in the upper layer area on one side wall including the short side of the storage tank. Is used, it is introduced and discharged from the entrance provided in the lower layer area on the other side wall including the short side. At this time, if each entrance is located at the most distant position between the upper zone and the lower zone, the water in the storage tank is stored with a natural temperature gradient without stirring and the hot water (or cold water) once stored is stored. Since it is used from a high temperature range (or a low temperature range), heat loss in the storage tank is minimized.

On the other hand, since a partition plate is provided in a substantially upper layer area of the storage tank, the mass of the heat storage water in a portion preliminarily partitioned by the partition plate has a predetermined ratio to the mass of the building. If it is set, even when vibration is caused in the building by external force, the heat storage water in the storage tank causes a predetermined sway and buffers the vibration on the building side. In addition, since the partition plate is arranged in parallel with the side wall including the long side, it does not obstruct the flow of heat storage water when flowing in and out, and is formed so as to be movable, so that the storage tank can be unitized. Adjust the partition plate to match the vibration cycle of the heat storage water to the building even when aiming.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vibration damping heat storage device (hereinafter referred to as this device) according to the present invention will be described with reference to FIGS.

This apparatus has a plan structure shown in FIG. 1, and a storage tank 1 formed in a rectangular parallelepiped, water inlets and outlets 4, 6 provided in the storage tank 1 and a partition plate 5a. ,
5b. The storage tank 1 is formed of a corrosion-resistant steel plate such as stainless steel, and is racked with styrene foam on the outer peripheral side for heat insulation (or cold insulation). , 1b are disposed substantially horizontally.

Of the entrances and exits 4 and 6 for introducing water into the storage tank 1 or for flowing the retained water toward a cooling and heating device (not shown), the entrance 4 is one side wall 2 including the short side 1c.
The entrance 6 is provided on the other side wall 2d side including the short side 1d. As shown in FIG. 2 which is a side sectional view of the present apparatus, the entrance 4 is located immediately below the water surface W when a predetermined amount of water is stored in the storage tank 1, and the entrance 6 is located near the bottom of the storage tank 1. Are mounted substantially horizontally along the side walls 2c and 2d, respectively.

The entrances and exits 4 provided in the upper region L1 and the lower region L2 of the heat storage water stored in the storage tank 1 as described above.
6 is formed from a tube having a number of apertures on its surface. This is, for example, when hot water is stored in the storage tank 1, the hot water is introduced from the entrance 4 and when cold water is stored, the hot water is introduced from the entrance 6. This is to prevent the upper layer L1 and the lower layer L2 of the water from being forcibly stirred.

In the upper region L1 of the heat storage tank 1 in which the entrance 4 is provided, flat partition plates 5a and 5b for adjusting a vibration period are provided. In this device,
The swing of the heat storage water generated when the building is vibrated by the partition plates 5a and 5b is adjusted at a predetermined cycle to buffer the swing excited in the building.
Utilizing free water sway in the direction parallel to (1d). The sloshing effect that can be used at this time is as follows:
Since it is 1, the partition plates 5a and 5b are provided up to about 1/2 of the water depth of the storage tank 1.

Further, the pair of partition plates 5a and 5b are provided in parallel with the side walls 2a and 2b respectively including the long sides 1a and 1b of the storage tank 1 shown in FIG. As shown in FIG. 3 which is a side sectional view from the side of the side wall 2 d including the short side 1 d, the partition plates 5 a and 5 b have a storage tank 1.
A plurality of rods 3, 3 which are reinforcing members penetrate therethrough, and use these rods 3, 3 as guide members in a direction parallel to the short sides 1 c, 1 d, that is, in a direction approaching or separating from the side walls 1 a, 1 b. It is formed so as to be movable. Although not shown, the partition plates 5a and 5b can be fixed at desired positions.

In adjusting the movement of the partition plates 5a and 5b, the distance between the partition plates 5a and 5b or the distance between the partition plates 5a and 5b and the side walls 2a and 2b is determined by the mass of the heat storage water in the partitioned part. Is set to be about 1/50 to 1/100 of the mass of This means that the effective mass of heat storage water is 1/1
If it is less than 00, a sufficient damping effect cannot be obtained, and
If it is larger than 0, the balance with the structure of the building will be unbalanced.

The apparatus constructed as described above is provided in association with various buildings. However, in a relatively small-scale building, a space between the foundation beams, which has been provided for drainage of intrusion groundwater, has been used. The pit was sometimes used as a heat storage tank, but such pits could not be provided due to improvements in drainage methods. It is preferable to set it in.

When this apparatus is installed on the roof of a building, for example, when storing hot water, warmed water is introduced into the storage tank 1 from the entrance 4 through a heat source (not shown). The entrance 4 is provided in the upper region L1 on the side wall 2c including the short side 1c, and the other entrance 6 is provided in the lower region L2 on the side wall 2d including the short side 1d. Of course, since these entrances and exits 4 and 6 are part of the loop of the air conditioning system, the water stored from the entrance and exit 6 is returned to the heat source side with the introduction of hot water.

At this time, if the entrances and exits 4 and 6 are arranged at the most distant positions between the upper zone L1 and the lower zone L2 as described above, hot water can be supplied to the water surface W without stirring the water in the storage tank 1. Since it can be stored from the vicinity, the heat storage water becomes gradually lower in temperature as it approaches the bottom. When heating the inside of the building using the heat storage water, if the building is supplied again from the entrance 4 to the building side, the stored hot water can be used from the high temperature area and the heat loss in the storage tank 1 can be minimized. Can be stopped.

On the other hand, in the cooling inside the building, the cold water is stored in the storage tank 1 through the entrance 6 in reverse to the above-mentioned hot water, and when it is used, it is supplied again from the entrance 6 to the building side. I do. Then, cold water is stored from the lower area L2 of the storage tank 1 toward the upper area L2 without stirring the inside of the tank,
In addition, since the water is used from the lower region L2 having a lower water temperature, high thermal efficiency can be obtained.

Further, since the partition plates 5a and 5b are provided in the upper layer area L1 of the storage tank 1, the distance between the partition plates 5a and 5b or the partition plates 5a and 5b is determined in advance.
The space between 5b and the side walls 2a, 2b is set so that the mass of the heat storage water in the partitioned portion is a predetermined ratio to the mass of the building. Then, when a strong wind or an earthquake causes a large vibration in the building, the heat storage water in the storage tank 1 fluctuates substantially at the same cycle as the building and at a predetermined phase difference, and opposes the vibration on the building side. Buffer this.

The partition plates 5a, 5 provided in the storage tank 1
Since b is disposed in parallel with the side walls 2a and 2b, even when the storage tank 1 normally functions as a heat storage tank, it obstructs the flow of water in the longitudinal direction of the storage tank 1 at the time of inflow and outflow of the heat storage water. There is no. Therefore, the storage tank 1 can be a stratified heat storage device that stores heat with a natural temperature gradient from the upper layer area L1 to the lower layer area L2 over the entire surface of the storage tank 1 in plan view, and maintains high thermal efficiency. can do.

Since the storage tank 1 has movable partition plates 5a and 5b, the storage tank 1 can be unitized by, for example, setting several kinds of volume standards in accordance with the scale of the air conditioning equipment. Even when aiming, the vibration cycle of the heat storage water can be matched with the building to be installed. In addition, storage tank 1
By unitizing the components, it is possible to standardize various members such as an attached pipe, and it is possible to further reduce costs.

In the present embodiment, a pair of movable partition plates 5a and 5b are provided in the storage tank 1, but this also takes into account that a plurality of effective vibration areas of the heat storage water are provided. Such a partition plate may be a single unit as long as the position can be adjusted, or two or more partitions may be provided.

[0026]

As described above, according to the present invention, since the partition plate is provided so as to be movable, the effective mass of the heat storage water is matched with the vibration cycle of the building to suppress the vibration generated in the building. In addition, since the vibration period can be adjusted according to the size of various buildings, the storage tank can be unitized, and the upper layer on one side including the short side and the other including the short side The inlet and outlet of the heat storage water are provided in the lower layer area on the side wall side, and the partition plate is provided in parallel with the side wall including the long side, so that the heat storage water can flow in and out without stirring the inside of the storage tank. In addition, since the flow of the heat storage water flowing in and out by the partition plate is not hindered, a stratified heat storage tank can be provided, and an effect that high thermal efficiency can be maintained.

[Brief description of the drawings]

FIG. 1 is a plan sectional view showing a vibration damping heat storage device according to the present invention.

FIG. 2 is a side sectional view of the vibration damping heat storage device taken along the line II-II of FIG.

FIG. 3 is a side sectional view of the vibration damping heat storage device as viewed in the direction of arrows III-III in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage tank 2a, 2b Side wall 2c One side wall 2d The other side wall 4, 6 Doorway 5a, 5b Partition plate L1 Upper layer area L2 Lower layer area

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tamio Ohtsuki 1-3-2 Shibaura, Minato-ku, Tokyo Inside Shimizu Corporation (72) Inventor Kiyoto Shioya 1-3-2 Shibaura, Minato-ku, Tokyo No. Shimizu Corporation (72) Inventor Yoshihiro Kurita 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Hideyoshi Morishita 2 Nishi-Atsujigaoka, Nishifutsu-shi, Tokyo Tokyo Metropolitan Electric Power Co., Inc. Technical Research Institute (72) Inventor Toshihiko Tanaka 2-4-1 Nishi-Atsujigaoka, Chofu-shi, Tokyo Tokyo Electric Power Company Technical Research Institution (56) References JP-A-3-3 271474 (JP, A) JP-A-3-160246 (JP, A) JP-A-3-107540 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 5/00 102 E04H 9/02 341 F28D 20/00

Claims (1)

(57) [Claims] 1. A vibration damping heat storage device that is disposed in association with a building, stores heat storage water for air conditioning, and suppresses vibration excited in the building by the heat storage water,
A storage tank formed in a rectangular parallelepiped and whose long side is positioned substantially horizontally, and the storage tank is provided in the upper layer area on one side wall including the short side and the lower layer area on the other side wall including the short side, respectively. An inlet / outlet of heat storage water, and a partition plate provided in a substantially upper layer area of the storage tank in parallel with a side wall including a long side of the storage tank and formed to be movable in a direction parallel to a short side of the storage tank. A vibration damping heat storage device comprising: