JPH06300325A - Air conditioner heat storing device utilizing concrete underground wall - Google Patents

Abstract

PURPOSE:To utilize a concrete underground wall such as a pre-formed concrete column row soil pile wall or a site piled concrete underground continuous wall and the like as an air conditioner heat storing device having a large capacity. CONSTITUTION:A hollow part of a concrete underground wall A placed in building a building B is utilized as a heat storing water tank C. A concrete pile 2a and the like constituting the concrete underground wall A has a bottom part to form a water tank 1. Each of the water tanks 1, 1 is communicated to each other or made independent, these water tanks are connected to the air conditioners 8, 9, 10 and 11 through communication pipes 6, 7 so as to make a return flow. With such an arrangement as above, cold water or hot water is fed to the water tanks 1, 1 by a heat pump 8 so as to store heat and at the same time its heat source is utilized for a heating or a cooling operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage device for an air-conditioning facility using a prefabricated concrete column soil retaining wall and a cast-in-place concrete continuous wall.

[0002]

2. Description of the Related Art Conventionally, when constructing an underground structure portion of a building, a concrete underground wall body such as an existing concrete column row earth retaining wall or an underground continuous wall made of cast-in-place concrete is installed in the ground surrounding the building. Is being done. For example, as shown in Figure 7,
25 is continuously filled with soil cement 26, and hollow precast concrete piles 2a, 2a are sunk therein to be formed. The latter continuous underground wall, for example, as shown in FIG. 8, excavates a slot 27 for each unit length in the ground, inserts a reinforcing steel basket into this, and pours concrete into the hollow. The unit unit walls 2b and 2b are sequentially formed in series. These concrete underground walls are usually just buried after the building is built.

On the other hand, buildings and other structures are provided with air-conditioning equipment, which requires a large heat source and a large amount of cost, so various heat source methods are conceivable for resource and energy saving. It has been put to practical use. One of them is the heat storage method. This heat storage method generally stores hot water or cold water in a heat storage water tank that uses a foundation slab double slab of a building and uses this as an auxiliary heat source, so that the heat source capacity can be reduced and inexpensive midnight power can be used. There is an advantage that the initial cost and the running cost can be reduced. However, the above-mentioned underground double slab serving as a heat storage source is not always installed in a structure in a current building and does not have a sufficient capacity. Moreover, the heat storage tank has many problems such as high construction cost.

Further, the idea of using a foundation pile as a heat storage tank is disclosed in Japanese Patent Laid-Open No. 54-31905. In such a case, the foundation pile is important as a strength member for supporting a building. The problem is that the strength of the foundation pile is reduced by making the inside of the pile a hollow space to store water, the number of foundation piles is small in one building, and the capacity is insufficient to use it as a heat storage water tank. There is
It has not been put to practical use.

The present invention has been made in view of the above circumstances, and is applied to a concrete underground wall body such as a retaining wall or an underground wall which has been conventionally installed for building a building and buried after use. Since there are many hollow parts, by using this as a heat storage tank, it is possible to obtain a large capacity heat storage tank for heat storage type air conditioning at a low cost, and It is intended to reduce the cost.

[0006]

The structure of the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments. Unit structures 2a, 2b having a required number of hollow parts in the underground wall A made of concrete installed in the ground
Are formed in a bottomed water tank 1, and those water tanks 1
Are sequentially communicated with each other to form a heat storage water tank C, and the heat storage water tank C is
In addition, distribution pipes 6 and 7 for flowing out and inflowing water, which are connected to the air conditioning equipment 8, 9, 10, and 11, are provided.

The heat storage device according to claim 2 is a unit structure 2a, 2b having a required number of hollow portions in the underground wall A made of concrete installed in the ground adjacent to the building B.
Are formed in a bottomed water tank 1, and those water tanks 1
There are two types of distribution pipes, one for water inflow and the other for water outflow.
Insert 0, 21 and air conditioner 8, 9, 10, 1 separately
It is characterized in that it is connected to the confluent pipes 22 and 23 leading to 1.

Further, the heat storage device according to claim 3 is a unit structure 2a, 2b having a required number of hollow portions in the underground wall A made of concrete installed in the ground adjacent to the building B.
Are formed in the water tank 1 having a low profile, and those water tanks 1
Of the heat storage water tank units d are communicated with each other to form the heat storage water tank units d, and the water tank pipes 1, 1 at one end of each heat storage water tank unit d and the water tank pipes 1, 1 at the other end thereof are separately air-conditioned , 9, 10, 11 are connected to the confluent pipes 22, 23.

[0009]

In the apparatus according to the first aspect, the water tanks 1, 1 are connected to each other through the communication pipes 5, 5 to form the large-capacity heat storage water tank C. The heat storage water tank C is connected to the air conditioning equipments 8, 9, 10, and 11 by the distribution pipes 6 and 7, and the heat pump 8 of the equipments is used to recirculate cooling water and hot water to store heat. Heat is radiated to the air conditioners 9 and 10.

Further, in the apparatus of claim 2, each water tank 1, 1
Two kinds of flow pipes 20 and 21 for inflow and outflow are respectively inserted into the pipes, combined into two merge pipes 22 and 23 and connected to the air conditioning equipments 8, 9, 10 and 11, and heat is stored in the same manner as above. Heat is dissipated.

Further, in the apparatus according to the third aspect, the heat storage water tank units d, d are formed by connecting a corresponding number of water tanks 1, 1 in series by the communication pipe 5. Two types of flow pipes 20 and 21 for inflow and outflow are inserted in each unit, and two confluence pipes 2
They are grouped into 2 and 23, connected to the air conditioning equipment 8, 9, 10, and 11, and store and radiate heat in the same manner as above.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an example of the case where the concrete underground wall body is a prefabricated concrete column row earth retaining wall as shown in FIG. 7, where A is a facility in the adjacent ground of the building B to be constructed. A concrete underground wall made of prefabricated concrete columns and retaining walls. Building B is retaining wall A.
The ground surrounded by is excavated, removed, and built in it.

As is well known in the art, the ready-made concrete pillar row soil retaining wall A is made by filling excavation holes having a diameter larger than that of the ready-made hollow concrete piles 2a and filling the soil cement with hollow concrete piles 2a, 2a. 2a is formed by being laid down in a column shape. In the present invention, a part or all of the sunk concrete piles 2a, 2a is used as the heat storage water tank C of the heat storage device in the air conditioning equipment.

Each concrete pile 2a used in the heat storage water tank C is closed and formed by, for example, placing a bottom filling concrete 3 at the lower end thereof to form a bottomed water tank 1. A cover plate 4 is provided on the upper end of each concrete pile 2a, and a waterproof coating (not shown) is applied to the inner surface of the water tank 1 if necessary. The adjacent water tanks 1 and 1 are connected to each other by a communication pipe 5 so that they can flow in series. The communication pipe 5 is formed in an inverted U shape, and legs 5a, 5a thereof penetrate the cover plate 4 and are inserted into the water tanks 1, 1. In addition, in the above-mentioned water tanks, the water in the heat storage water tank C flows into the water tanks 1 and 1 located at both ends,
Distribution pipes 6 and 7 for outflow are provided. This distribution pipe 6,
One end of the member 7 penetrates the cover plate 4 and is inserted into the water tank 1, and the other end thereof is connected to the air conditioning equipment described later. The depth positions of both leg portions 5a, 5a of the communication pipe 5 and the flow pipes 6, 7 inserted into the water tank 1 can be appropriately determined without being limited to the illustrated embodiment.

Each of the water tanks 1 forming the heat storage water tank C is filled with water, and the flow pipes 6 and 7 are connected to the air conditioning equipment installed in the building B. That is, in this case, as shown in FIG. 1, the flow pipe 6 connected to the water tank 1 at one end includes an air conditioner such as a heat pump (ice making heat pump in the case of cooling) 8 and an air handling unit 9 or a fan coil unit 10. The outlet side of the primary coil 12a of the heat exchanger 11 connected to the reactor is connected to the outlet line of the heat exchanger 11 by a pipe line 13a having a pump P ₁ . The flow pipe 7 connected to the water tank 1 at the other end is the primary coil 12
It is connected to the inlet side of a by a pipe line 13b. And pump P ₁
Is cooled or heated by passing through the primary coil 12a of the heat exchanger 11, enters the one end of the heat storage water tank from the flow pipe 6, flows through the water tanks 1 and 1 as indicated by the dotted arrow, and reaches the other end. It comes out from a certain distribution pipe 7 and circulates from the pipe line 13b to the primary coil 12a to accumulate heat.

The secondary coil 12b of the heat exchanger 1 is provided with conduits 14a, 14b connected to the heat pump 8, and the conduits 14a, 14b are connected to the switching valve 15a,
Pipe lines 16a and 16b around the air conditioners 9 and 10 are connected via 15b. When heat is stored in the heat storage water tank C, the switching valves 15a and 15b are switched so that the pipes 14a and 14b are moved around the heat pump 8 and the secondary coil 12 is pumped by the pump P _2.
The heat source is sent to b, and the water in the heat storage tank C is cooled or heated via the primary coil. It is economical to perform this heat storage operation by using low-priced late-night power. Further, when the air conditioning is used, the switching valves 15a and 15b are switched so that the pipelines 14a and 14b from the secondary coil 12b are connected to the pipelines 16a and 16b around the air conditioners 9 and 10.
The heat storage water of the heat storage water tank C flowing through the primary coil 12a is used as a heat source. Furthermore, by the switching valves 15a and 15b,
If all the pipelines 14a, 14b, 16a, 16b connected to the secondary coil 12b are made to communicate with each other, the heat storage water in the heat storage water tank C can be used as a heat source together with cooling and heating by the heat pump 8.

The above embodiment is of a serial type in which water sequentially flows from the water tank 1 at one end to the water tank 1 at the other end, but in the present invention, the water tanks 1 are arranged in parallel so that heat can be stored independently. It can also be of the form. That is, as shown in FIG. 3, each water tank 1 has two types of distribution pipes, a first and a second type.
20 and 21 are respectively inserted and opened through the cover plate 4, and among them, each of the first flow pipes 20 and 20 is connected to the first merging pipe 22, and each of the second flow pipes is connected. 21 and 21 are connected to the second merging pipe 23. The first merging pipe 22 is connected to the conduit 13a of the primary coil 12a of the heat exchanger 11,
The second merging pipe 23 is connected to the pipe line 13b. In this case, the water tanks 1 and 1 are made independent, and heat is replaced individually. Therefore, even if trouble occurs in each aquarium,
The heat storage water tank C can be operated without stopping the operation. In this case as well, the depth position where each of the flow pipes 20 and 21 is inserted can be appropriately determined.

FIG. 4 shows an embodiment of an apparatus which is passed through a heat storage water tank C which requires a particularly large capacity. In this embodiment, a large number of water tanks 1 and 1 are set as heat storage water tank units d (d _{1 to} d _n ), and the water tanks 1 and 1 are connected to each other by a communication pipe 5 for each unit d. Connect for free distribution. In addition, the water tank at the beginning of each unit d
The circulation pipe 20 is inserted through the cover plate 4, and the second circulation pipe 21 is inserted into the water tank 1 at the end as well. Then, the first flow pipes 20, 20 of each unit d, d are connected to the first merge pipe 22, and the second flow pipes 21, 21 are also connected to the second merge pipe 23. The merging pipe 22 is connected to the pipe line 13a, and the second merging pipe 23 is connected to the pipe line 13b.

FIG. 5 shows an example of the case where the concrete underground wall body is an underground continuous wall of cast-in-place concrete as shown in FIG. For example, as shown in FIG. 8, this underground continuous wall is formed by placing concrete in the excavated ground and successively connecting hollow unit unit walls 2b, 2b. In this embodiment, the bottom-filled concrete 3 is placed in the hollow portion of the unit unit wall 2b to form the bottomed water tank 1. The heat storage water tank C is those water tanks 1,
1 was used in place of the ready-made concrete pile 2a of each of the above-mentioned examples. 5 is similar to the embodiment of FIG. 2, each water tank 1 is provided with a cover plate 4, and each water tank 1, 1
The communication pipes 5 and 5 and the flow pipes 6 and 7 for connecting the above are provided. In the case where the unit unit wall 2b is used as the water tank 1, the other examples of FIGS. 3 and 4 can be applied, but the description thereof will be omitted because it will be duplicated.

FIG. 6 shows another example of connection between the device of the present invention and the air conditioning equipment. In this example, one flow pipe 7 (first merging pipe 22) is directly connected to a pipe line 14a reaching the inlet side of the heat pump 11, and the other flow pipe 6 (second merging pipe 23) has the same outlet. It is directly connected to the pipeline 14b extending to the side. As in the example of FIG. 1, the conduits 14a and 14b are connected to conduits 16a and 16b around the air conditioners 9 and 10 via the switching valves 15a and 15b. In addition, the pipelines 14a, 14
Pumps P ₁ and P ₂ are provided at b, respectively. In this example, when storing heat in the water tanks 1 and 1, the switching valve
By switching between 15a and 15b, the pipe lines 14a and 14b are provided around the heat pump 8. When using air conditioning, the switching valve 15
By switching a and 15b, the pipelines 14a and 14b are communicated with the pipelines 16a and 16b around the air conditioners 9 and 10, respectively. In addition, the switching valve 15
By switching between a and 15b, pipelines 14a and 16a and pipelines 14b and 16a
If they are communicated with each other, the heat storage by the heat pump 8 and the heat radiation by the air conditioners 9 and 10 can be used together.

[0021]

As described above, the heat storage device of the present invention is used to construct a concrete underground wall such as a ready-made concrete column row earth retaining wall or an underground continuous wall made of cast-in-place concrete, which is conventionally installed for building a building. A heat storage water tank can be formed by utilizing it, and a large capacity water tank can be obtained at a low cost, and the construction cost of the air conditioning equipment can be reduced.

In particular, in the heat storage device of the second aspect, since each water tank can work independently, even if a part of the water tank is disturbed, it can be operated without stopping the entire operation. . Further, in the heat storage device of claim 3,
Since it is used in parallel, it is possible to realize a highly efficient heat storage water tank by avoiding the enlargement of the drive device and piping etc. and solving the problem of dead water area even when applied to extra large capacity Become.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an outline of an embodiment of an apparatus of the present invention using a prefabricated concrete column row earth retaining wall.

FIG. 2 is a vertical sectional view showing a main part of the same embodiment.

FIG. 3 is a longitudinal sectional view of a main part showing another embodiment.

FIG. 4 is a vertical cross-sectional view of a main part showing still another embodiment.

FIG. 5 is a longitudinal cross-sectional view of a main part showing an embodiment using a cast-in-place concrete underground wall.

FIG. 6 is a schematic vertical sectional view showing another example of the relationship between the device of the present invention and air conditioning equipment.

FIG. 7 is a plan view showing an example of a ready-made concrete column wall.

FIG. 8 is a plan view showing an example of a cast-in-place concrete continuous wall.

[Explanation of symbols]

 A Concrete underground wall B Building C Heat storage water tank d Heat storage water tank unit 1 Water tank 2a Concrete pile 2b Unit unit wall 3 Bottom filling concrete 4 Cover plate 5 Communication pipe 6,7 Distribution pipe 8 Heat pump 9,10 Air conditioner 11 Heat exchanger 15a , 15b Switching valve 20, 21 Distribution pipe 22, 23 Confluence pipe

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryuji Kakimoto 4 Takatani Shinmachi, Ichikawa City, Chiba Kubota Ichikawa Plant (72) Inventor Chiaki Kaneko 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Company Tokyo Branch (72) Inventor Masato Iida 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Tokyo Branch (72) Inventor Masahiko Hanamura 1-2-7 Moto-Akasaka, Minato-ku, Tokyo In Kashima Construction Co., Ltd. (72) Inventor Noriyasu Sagara 2-1-1, Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Hiroo Izumiyama 2-1-1, Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Center

Claims (3)

[Claims] 1. A unit structure having a required number of hollow portions in a concrete underground wall installed in a ground adjacent to a building is formed in a bottomed water tank, and these water tanks are connected to each other sequentially. A heat storage device for an air conditioning equipment using a concrete underground wall, which is a heat storage water tank, and a distribution pipe connected to the air conditioning equipment for flowing out and flowing in water is provided in the heat storage water tank. 2. A unit structure having a required number of hollow portions in a concrete underground wall installed in the ground adjacent to the building is formed in a bottomed water tank, and each of these water tanks is filled with water. A heat storage device for an air conditioning facility using a concrete underground wall body, characterized in that two types of flow pipes for inflow and outflow are inserted, and each is connected to a merging pipe leading to the air conditioning facility. 3. A unit structure having a required number of hollow portions in a concrete underground wall installed in the ground adjacent to the building is formed in a bottomed water tank, and a corresponding number of these water tanks are mutually replaced. A heat storage water tank unit in communication with each other, and water tank pipes at one end of each heat storage water tank unit and water tank pipes at the other end are separately connected to a confluent pipe leading to an air conditioning facility, concrete A heat storage device for air conditioning equipment that uses an underground wall.