KR101304998B1 - Air-conditioning system with heat pump and heat storage tank using geothermal and air heat - Google Patents

Abstract

The present invention relates to a heat storage tank and a heat pump air-conditioning system using geothermal and air heat consisting of a cooling tank, a cooling / heating tank, and a hot water supply tank, and more specifically, to the insulation and waterproofing of reinforced concrete structures in a building basement from the construction design time. Heat storage tank that supplies energy to the heat storage tank, heat pump 1 for supplying energy to the cooling and heating / heating tanks during cooling or heating, and heat exchanger for supplying heat to the hot water of the hot / cold tank for heat exchange. It includes a control valve and a circulation pump controlled by the heat pump 2 and the control panel, and heats and cools using energy stored in the heat storage tank during the time when the load is high. When it is large, it is possible to meet the demand for additional cooling and heating by connecting cooling and heating and cooling tanks It relates to geothermal and air heat with the heat storage tank and heat pump air-conditioning system according to claim.

Description

Heat-conditioning system with heat pump and heat storage tank using geothermal and air heat}

The present invention relates to a heat storage tank and a heat pump air-conditioning system using geothermal and air heat consisting of a cooling tank, a cooling / heating tank, and a hot water supply tank, and more specifically, to the insulation and waterproofing of reinforced concrete structures in a building basement from the construction design time. It relates to a heating and cooling system using a heat pump and a heat exchanger to build and operate a heat storage tank, or to build a heat storage tank on the ground to use geothermal or air heat as heat sources.

A heat pump is a device used to cool and heat a room. A condenser for condensing a high temperature and high pressure gas refrigerant compressed by a compressor into a medium temperature high pressure liquid refrigerant, and a medium temperature high pressure liquid refrigerant condensed by a condenser at a low temperature. An expansion valve for expanding with a low pressure liquid refrigerant, and an evaporator for evaporating the low temperature low pressure liquid refrigerant passing through the expansion valve to a low temperature low pressure gas refrigerant to supply to the compressor.

That is, the low pressure gaseous refrigerant is compressed in the compressor and then delivered to the condenser in a high pressure gaseous state, where it is condensed into the liquid phase by releasing heat, and the condensed refrigerant is expanded under reduced pressure through an expansion valve and supplied to the evaporator, and the refrigerant is evaporator. Absorbs heat from outside and evaporates and then returns to the compressor.

Basic heat pump system is a device that absorbs heat from low temperature heat sources such as outside air, low temperature water, and well water, and creates high temperature heat sources such as warm indoor air and hot water and releases heat where it needs heat. Driving energy is required to move. Depending on the heat exchange medium on the heat source side (the heat pump part that receives heat) and the heat pump part that emits heat, it is common to distinguish between air-to-air, air-to-water, water-to-air and water-to-water systems. In addition, geothermal heat is used as an important heat source in geothermal heat pump systems that are widely used in Europe and North America, and can be considered as a vertical sealed type, horizontal sealed type, and open type.

The most widely used driving energy is electrical energy used to drive a compressor for compressing a refrigerant, which is a working fluid of a heat pump system. In addition to electrical energy, there is a driving method using thermal energy. An example is an absorption heat pump using steam, high temperature water, and combustion gas.

In other words, there is a method of using the engine to directly burn fuel to obtain power, and use it to drive a compressor for compressing the refrigerant. A system for operating a heat pump using an engine to burn gas is widely used.

The biggest feature of the heat pump system described above is that it can supply more energy in the form of thermal energy than the energy required for driving, which makes rational use of energy when using the heat pump. At this time, the ratio of the magnitude of the output thermal energy supplied by the heat pump to the input energy required for driving the heat pump is called a coefficient of performance (COP), and in most cases has a value greater than one.

The basic cycle of a steam-compressed heat pump driven by electrical energy consists of a compressor, a condenser, an expansion device and an evaporator. When the low-temperature, low-pressure gaseous refrigerant is compressed into a high-pressure gas at a temperature higher than the temperature of the atmosphere (or indoor air), heat can be released to the atmosphere (or indoor air). Basic concept.

As a cooling and heating system using a heat pump using the principle described above, research and development for the heating and cooling system having a variety of structures and forms are actively in progress.

First, Korean Patent No. 10-0542919 (January 10, 2006) relates to a cooling and heating system using a heat pump having two heat exchangers and a three-way valve for temperature control, and includes a heat storage tank, a first stage condenser, a two stage condenser, and a compressor. Hot water circulation means is provided with an evaporator, consisting of a three-way valve; Accumulation means consisting of a three-way valve for the refrigeration; It has a valve structure of a cold water circulation means consisting of a three-way valve for cold water, which provides a method for producing hot water above a certain temperature and replaces a heat source additionally needed according to an increased heat exchanger load. A system is disclosed.

In addition, Korean Patent No. 10-0780460 (Nov. 22, 2007) relates to an economical cooling and heating system using a heat pump, and a plurality of medium storage units in which the heat pump is used as a heat storage or heat storage function or dualized by a heat storage and heat storage function. A plurality of diffusers are formed in each of the plurality of media storage units, thereby eliminating the problems of temperature control and unbalance of flow rate caused by simultaneous operation of the heat storage tank (or the cold storage tank), and With the high efficiency and durability as the biggest challenge, the construction cost is high, minimizing the equipment capacity with the regenerative bidirectional energy utilization system, and improving the installation quantity of geothermal holes due to the temperature imbalance of cold and hot water. Heat of sewage or wastewater discharge tank, heat generation heat of electric room, waste of equipment (compressor, etc.) And the like, while the most of the waste energy scattered to secure a sufficient recovery time of not tear when starting the air-conditioning system is the system is started to increase the equipment operating efficiency.

However, the above systems do not provide a means for adequately coping with the maximum load (overload) change due to the recent warming phenomenon or abnormal temperature.

1. Korea Registered Patent No. 10-0542919 (January 10, 2006) 2. Korean Registered Patent No. 10-0780460 (2007.11.22)

Therefore, the present invention uses a heat storage tank consisting of a cooling tank, a cooling / heating tank and a hot water supply tank, and the heat source circulation means between the cooling tank and the cooling / heating tank or the cooling / heating tank and the hot water tank according to the size of the load to be supplied to the heat source. Or to overcome the limitation of the capacity using a heat exchanger, and to provide a heat storage tank and a heat pump air-conditioning system using geothermal and air heat for energy saving and high efficiency of the air-conditioning device.

In order to solve the above problems, an embodiment according to the present invention, in the air-conditioning tank using a heat storage tank, a heat exchanger, and a heat pump connected through a pipe, the air-conditioning system is

Cooling tank where cold water is stored and circulated, Cooling / heating tank where cold and hot water is circulated, and Fresh water is converted into hot water and stored in a heat storage tank consisting of a hot water tank and cooling tank and cooling / heating tank to supply energy. The heat pump 2 and one side connected to the heat pump 1 and the hot water supply tank to supply energy, the one side is connected to the hot water tank and the other side is connected to the cooling / heating tank or the place of use, and heat of hot water circulated in the hot water tank. It is located between the heat exchanger that exchanges heat with the cooling / heating tank or hot water at the place of use, and the cooling tank and the cooling / heating tank, and two opening and closing passages through which water circulates due to the difference in temperature or pressure between the cooling tank and the cooling / heating tank. It is connected to the opening valve and the heat storage tank of the circulating pipe which supplies cold water or hot water to the place of use, and is located in each pipe connected to the heat storage tank. It is a heat storage tank and a heat pump air-conditioning system using geothermal and air heat, including a control valve, a circulation pump, and a control panel for controlling the control valve and the circulation pump.

 Another embodiment of the present invention for solving the above problems, In the air conditioning heating system using a heat storage tank, a heat exchanger, and a heat pump connected through a pipe, the air conditioning system

Cooling tank where cold water is stored and circulated, Cooling / heating tank where cold and hot water is circulated, and Fresh water is converted into hot water and stored in a heat storage tank consisting of a hot water tank and cooling tank and cooling / heating tank to supply energy. Heat pump 2, which is connected to the heat pump 1 and the hot water supply tank to supply energy, and one side is connected to the hot water tank, and the other side is connected to the cooling / heating tank or the place of use, thereby cooling the heat of the hot water circulated in the hot water tank. ㆍ It is located between the heat exchanger that exchanges heat with the heating tank or hot water of the user, and the cooling tank and the cooling / heating tank, and is connected to the supply pump and the heat storage tank that supply water from the upper layer of the cooling tank to the lower layer of the cooling / heating tank. Control valves, circulation pumps and control valves located in circulation pipes for supplying cold or hot water to the place of use, and each pipe connected to the heat storage tank; Heat storage tank and heat pump air-conditioning system using geothermal and air heat, including a control panel that controls the circulation pump.

According to the present invention, by heating or cooling by connecting or limiting the capacity of the heat storage tank according to the required load for each season, the heating and cooling at the maximum load is possible even with a capacity of a small heat pump. In other words, by using a heat pump with a small capacity, there is an effect that it is possible to meet the required heating and cooling needs of the maximum load with less power.

1 is a flowchart of a heat source during heating according to a first embodiment of the present invention.
2 is a flowchart of a heat source during heating according to a second embodiment of the present invention.
3 is a flowchart of a heat source during cooling according to a second embodiment of the present invention.
4 is a configuration diagram incorporating the first and second embodiments of the present invention.

The present invention provides a cooling and heating system using a heat storage tank, a heat exchanger, and a heat pump connected through a pipe, in one aspect, the cooling and heating system includes a cooling tank in which cold water is stored and circulated, a cooling and heating tank in which cold and hot water are circulated, A heat storage tank consisting of a hot water tank, which is converted into hot water and stored and circulated in hot water, a heat pump 1 connected to a cooling tank and a cooling / heating tank to supply energy, and a heat pump 2 connected to a hot water tank to supply energy. One side is piped to the hot water tank and the other side is piped to the cooling / heating tank or place of use, the heat exchanger and the cooling tank and cooling tank to heat exchange the heat of hot water circulated in the hot water tank with the cooling / heating tank or hot water of the place of use. ㆍ It is located between heating tanks, and a passage through which water circulates due to a difference in temperature or pressure between a cooling tank and a cooling / heating tank. The control unit is connected to two opening valves and a heat storage tank, and a control valve and circulation pump located at each pipe connected to the heat storage tank and a circulation pipe for supplying cold water or hot water to a user, and a control panel for controlling the control valve and the circulation pump. It provides a heat storage tank and a heat pump cooling and heating system using geothermal and air heat.

In another aspect, the present invention provides a cooling and heating system using a heat storage tank, a heat exchanger, and a heat pump connected through a pipe, wherein the cooling and heating system includes a cooling tank in which cold water is stored and circulated, and cooling and heating in which cold and hot water are stored and circulated. A heat storage tank consisting of a hot water tank, which is converted into hot water and converted into high temperature hot water, and a heat pump 1 connected to a cooling tank and a cooling / heating tank to supply energy, and a heat pump connected to a hot water tank to supply energy. 2 and one side is connected to the hot water tank and the other side is connected to the cooling / heating tank or the place of use, and the heat exchanger and the cooling tank to exchange heat of hot water circulated in the hot water tank with the cooling / heating tank or the hot water of the place of use. Located between the cooling and heating tanks, and a supply pump for supplying water from the upper layer of the cooling tank to the lower layer of the cooling and heating tank through a pipe. Connected to the heat storage tank, using geothermal and air heat, including a circulation pipe for supplying cold or hot water to the user, and a control valve and circulation pump located at each pipe connected to the heat storage tank, and a control panel for controlling the control valve and the circulation pump. Provide heat storage tank and heat pump air conditioning system.

Hereinafter, an operation of a cooling and heating system using a heat storage tank and a heat pump according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a heat source flow during heating according to the first embodiment of the present invention, Figure 2 is a heat source flow chart during heating according to a second embodiment of the present invention, Figure 3 is a second embodiment of the present invention Figure is a view showing the heat source flow during cooling. 4 is a configuration diagram incorporating the first and second embodiments of the present invention.

The heat storage tank according to the present invention consists of a cooling tank (T1), a cooling and heating tank (T2) and a hot water supply tank (T3). The heat storage tank may be installed on the ground, but it may be preferable to be constructed as a reinforced concrete structure underground to increase thermal efficiency. The inner wall of the heat storage tank can be constructed by applying urethane sealant (0.5mm), urethane foam (50mm or more), urethane sealant (0.5mm) and polyurea (2mm or more) after primer treatment for insulation and waterproofing of reinforced concrete. have. The cooling tank (T1) is preferably further provided with a drain pipe and a water supply pipe for cleaning the inside of the pipe. The heat storage tank may further preferably store a heat source for cooling and heating by using a stored heat source when producing and storing a heat source using a late night electricity and when actual cooling and heating are required.

The heat pumps 100 and 300 may use geothermal heat, waste heat, air heat, electric boilers, gas boilers, and the like as heat sources. The heat pump applied to the present invention applies a structure for using air heat and geothermal heat.

Heat pump 1 (100) according to the present invention is connected to the cooling tank (T1) and the cooling and heating tank (T2) by pipes (110, 120, 130) to the cooling tank (T1) and cooling and heating tank (T2). It serves to supply energy. That is, when heating is required, hot water is supplied to the cooling / heating tank (T2). When cooling is required, the water of the cooling / heating tank (T2) is changed to cold water for cooling, and the cooling water is supplied to the cooling tank (T1). It plays a role.

Heat pump 2 300 according to the present invention is connected to the hot water supply tank (T3) to supply energy, connected to the corrugated pipe 35 piped in the ground as a heat source, the efficiency of the heat pump 2 (300) is 3.5 times higher than efficiency.

In addition, the hot water supply tank (T3) connected to the heat pump 2 (300) according to the present invention is further provided with a hot water supply pipe (310, 320) is circulated supply of a constant temperature.

The heat exchanger 200 according to the present invention supplies heat to the water of the cooling / heating tank T2 by using the hot water of the hot water supply tank T3 during heating. In addition, during cooling, heat is supplied to the water at the use place 400 by using hot water of the hot water supply tank T3.

The object for exchanging heat of the heat exchanger 200 is adjusted by the heat exchanger inlet / outlet control valves v5 and v6 control valves. That is, the target of heat exchange of the hot water of the hot water supply tank T3 is selected according to the flow path selection of the heat exchanger inflow / exit control valves v5 and v6.

Two opening valves (v7, v8) are installed between the cooling tank (T1) and the cooling and heating tank (T2), and the two opening valves (v7, v8) are the cooling tank (T1) and the cooling and heating tank (T2). Opens and closes the passage to allow water to circulate due to temperature or pressure difference between The opening valves v7 and v8 are methods for integrating the capacity of the cooling tank T1 and the cooling / heating tank T2 to supplement the capacity of the heat pump 1 100 at the maximum load of the cooling and heating.

1 shows a heat source flow during heating according to the first embodiment according to the present invention.

According to the first embodiment according to the present invention, during heating, the low-temperature hot water of the lower part of the cooling / heating tank T2 is supplied to the heat source along the heat pump inlet pipe 110 to heat the hot water by the heat pump 1 (100). The hot water is supplied to the cooling / heating tank (T2) through the heat pump outlet pipe (120), and the high temperature hot water at the top of the cooling / heating tank is transferred to the use place (500) by the circulation pump (p2). The low-temperature hot water that is delivered and supplies heat along the circulation pipe at the use place 500 and completes the circulation is a flow back to the lower portion of the cooling / heating tank along the circulation discharge pipe 20.

In addition, the opening valves v7 and v8 are open during seasons (winter) when heating demand is high. Opening of the opening valves (v7, v8) to increase the capacity of the heat storage tank to use the heat pump 1 (100) of the small capacity to meet the heating demands of the use 500. Even when cooling, the open valves v7 and v8 are opened to increase the capacity of the cooling tank, thereby handling the demand for cooling in summer.

Finally, the control panel controls the operation of the control valve (v1 ~ v6) and the circulation pump (v1 ~ v6) to adjust the movement path of the water through the circulation pipe during heating as described above.

According to the second embodiment according to the present invention shown in Figures 2 and 3, the supply pump installed between the cooling tank (T1) and cooling and heating tank (T2) instead of the role of the opening valve (v7, v8) A supply pipe connecting the p5 and the supply pump p5 to the cooling tank T1 and the cooling / heating tank T2 is located. This serves to solve the imbalance of the flow rate and temperature between each tank.

2 shows the heat source flow at the time of heating when the heating capacity is small.

During heating, the low temperature hot water at the lower portion of the cooling / heating tank T2 along the heat pump inlet pipe 110 becomes hot water by the heat pump 1 (100), and the high temperature hot water is connected to the heat pump outlet pipe 120. It is discharged to the top of the cooling and heating tank (T2) through. The high temperature hot water discharged to the upper portion of the cooling / heating tank is supplied to the use place 500 by the circulation pump p2, and the high temperature hot water that has been circulated at the use place 500 becomes the low temperature hot water to form the circulation discharge pipe 20. Therefore, it can be seen that the flow returns to the lower part of the cooling / heating tank again.

At this time, the heat exchanger 200 connected with the hot water supply tank T3 increases the temperature of the water in the cooling / heating tank by using the hot water of the hot water tank T3.

The heat source flow during cooling according to the second embodiment of the present invention of FIG. 3 will be described in detail.

During cooling, the water in the upper portion of the cooling / heating tank T2 along the heat pump inlet pipe 110a becomes cold water by the heat pump 1 (100). The cold water is discharged to the lower portion of the cooling tank (T2) through the heat pump outlet pipe (120).

At this time, the pipe connecting the heat pump outlet pipe 120 and the cooling tank is connected by the heat pump inlet and outlet control valve (v2).

On the other hand, the cold water in the lower portion of the cooling tank is supplied to the place of use 500 by the circulation pump (p1). The cold water serves to lower the room temperature at the place of use 500. The cold water flows back to the upper portion of the cooling / heating tank again along the circulation water discharge pipe 20a after the circulation is completed.

In addition, the supply pump (p5) serves to maintain the balance of heat and flow between the cooling tank and the cooling and heating tank by supplying the water of the cooling tank to the cooling and heating tank, the heat exchanger 200 is a hot water tank (T3) And hot water of the hot water supply tank T3 are heat-exchanged with the water of the use place 400.

The heat exchanger 200 is connected to the place of use 400, not the cooling / heating tank, so that the water in the cooling / heating tank should be maintained as cold water.

4 is a diagram illustrating a configuration in which the first and second embodiments of the present invention are merged, and further description will be provided based on the configuration.

As shown in FIG. 4, the heat storage tank and the heat pump air-conditioning apparatus using geothermal and air heat according to the present invention implement the opening valves v7 and v8 and the supply pump v5 simultaneously to open the valves v7 and v8. And heat balance of the heat storage tanks (T1, T2) connected to the supply pump (v5) and temperature equilibrium is achieved in a short time.

In other words, by opening only the opening valves (v7, v8) to induce the circulation of the water stored in the heat storage tank (T1, T2) according to the temperature or pressure to maintain the temperature balance and the flow rate balance in the heat storage tank, or at the point of use 500 In order to respond quickly and flexibly to the demand for cooling and heating, the opening valve v7 is opened and the supply pump 5 is operated to quickly balance temperature and flow rate of water used as a heat source. As a result, it is possible to appropriately cope with the demand for cooling and heating.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

Heat pump 1 200. Heat exchanger
300. Heat pump 2 10. Circulation inlet pipe
20. Recirculating water pipe 30. Fresh water import pipe
40. Fresh water export pipe 50. Cold water tank branch pipe
110. Heat pump inlet pipe 120. Heat pump outlet pipe
P1, P2, P3, P4 circulation pump v1, v2 heat pump inlet / outlet control valve
v3, v4 heat source supply inlet and outlet control valve v5, v6 heat exchanger inlet and outlet control valve
p5. Supply pump 400. Intended use (pool)
500. Where to use (air conditioner) 35. Corrugated pipe

Claims (9)

In a cooling and heating system using a heat storage tank, a heat exchanger, and a heat pump connected through a pipe, the cooling and heating system is
A heat storage tank consisting of a cooling tank in which cold water is stored and circulated, a cooling / heating tank in which cold and hot water is stored and circulated, and a hot water tank in which fresh water is converted into hot water and stored and circulated;
A heat pump 1 connected to the cooling tank and the cooling / heating tank to supply energy;
A heat pump 2 connected to the hot water tank to supply energy;
A heat exchanger connected at one side to the hot water tank and connected at the other side to the cooling / heating tank or the use place, for exchanging heat of the hot water circulated in the hot water tank with the hot water of the cooling / heating tank or the use place;
Two opening valves positioned between the cooling tank and the cooling / heating tank and opening / closing a passage through which water circulates due to a difference in temperature or pressure between the cooling tank and the cooling / heating tank;
A circulation pipe connected to the heat storage tank and supplying cold water or hot water to a use place;
A control valve and a circulation pump located at each pipe connected to the heat storage tank; And
And a control panel for controlling the control valve and the circulation pump. A heat storage tank and a heat pump cooling and heating system using geothermal and air heat. The method of claim 1,
The heat storage tank is a reinforced concrete structure, after the wall surface is primed for insulation and waterproofing, the urethane waterproofing agent is applied, and the urethane waterproofing material is installed on the urethane waterproofing material, and after the urethane waterproofing agent is applied on the urethane foam, the poly Thermal storage tank and heat pump air-conditioning system using geothermal and air heat, characterized by finishing with urea. The method of claim 1,
Heat storage tank and heat pump cooling and heating system using geothermal and air heat characterized in that the hot water supply pipe is further installed to supply hot water of a constant temperature in the hot water tank. In a cooling and heating system using a heat storage tank, a heat exchanger, and a heat pump connected through a pipe, the cooling and heating system is
A heat storage tank consisting of a cooling tank in which cold water is stored and circulated, a cooling / heating tank in which cold and hot water is stored and circulated, and a hot water tank in which fresh water is converted into hot water and stored and circulated;
A heat pump 1 connected to the cooling tank and the cooling / heating tank to supply energy;
A heat pump 2 connected to the hot water tank to supply energy;
A heat exchanger connected at one side to the hot water tank and connected at the other side to the cooling / heating tank or the use place, for exchanging heat of the hot water circulated in the hot water tank with the hot water of the cooling / heating tank or the use place;
A supply pump located between the cooling tank and the cooling / heating tank and supplying water from an upper layer of the cooling tank to a lower layer of the cooling / heating tank through a pipe;
A circulation pipe connected to the heat storage tank and supplying cold water or hot water to a use place;
A control valve and a circulation pump located at each pipe connected to the heat storage tank; And
And a control panel for controlling the control valve and the circulation pump. A heat storage tank and a heat pump cooling and heating system using geothermal and air heat. 5. The method of claim 4,
The heat storage tank is a reinforced concrete structure,
The urethane waterproofing agent is applied after the wall surface is primed for insulation and waterproofing, and the urethane waterproofing material is installed on the urethane waterproofing material, and the urethane waterproofing material is coated on the urethane foam and then finished with polyurea. And heat storage tank and heat pump air conditioning system using air heat. 5. The method of claim 4,
Heat storage tank and heat pump cooling and heating system using geothermal and air heat characterized in that the hot water supply pipe is further installed to supply hot water of a constant temperature in the hot water tank. In a cooling and heating system using a heat storage tank, a heat exchanger, and a heat pump connected through a pipe, the cooling and heating system is
A heat storage tank consisting of a cooling tank in which cold water is stored and circulated, a cooling / heating tank in which cold and hot water is stored and circulated, and a hot water tank in which fresh water is converted into hot water and stored and circulated;
A heat pump 1 connected to the cooling tank and the cooling / heating tank to supply energy;
A heat pump 2 connected to the hot water tank to supply energy;
A heat exchanger connected at one side to the hot water tank and connected at the other side to the cooling / heating tank or the use place, for exchanging heat of the hot water circulated in the hot water tank with the hot water of the cooling / heating tank or the use place;
Two opening valves positioned between the cooling tank and the cooling / heating tank and opening / closing a passage through which water circulates due to a difference in temperature or pressure between the cooling tank and the cooling / heating tank;
A supply pump located between the cooling tank and the cooling / heating tank and supplying water from an upper layer of the cooling tank to a lower layer of the cooling / heating tank through a pipe;
A circulation pipe connected to the heat storage tank and supplying cold water or hot water to a use place;
A control valve and a circulation pump located at each pipe connected to the heat storage tank; And
And a control panel for controlling the control valve and the circulation pump. A heat storage tank and a heat pump cooling and heating system using geothermal and air heat. 8. The method of claim 7,
The heat storage tank is a reinforced concrete structure,
The urethane waterproofing agent is applied after the wall surface is primed for insulation and waterproofing, and the urethane waterproofing material is installed on the urethane waterproofing material, and the urethane waterproofing material is coated on the urethane foam and then finished with polyurea. And heat storage tank and heat pump air conditioning system using air heat. 8. The method of claim 7,
Heat storage tank and heat pump cooling and heating system using geothermal and air heat characterized in that the hot water supply pipe is further installed to supply hot water of a constant temperature in the hot water tank.

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