KR20100008964A - Air cooling and heating structure using thermal storage system - Google Patents

Abstract

PURPOSE: An air cooling and heating structure using thermal storage system is provided to minimize the time required for restoring the inside temperature by blocking external air. CONSTITUTION: An air cooling and heating structure using thermal storage system(10) comprises a thermal storage tank(20), a unit cooler(30), and a cold air radiating plate(40). The thermal storage tank has a transfer pipe(21), a first circulation coil(22), a latent heat storage member, an insulation layer(23), and a medium discharge pipe(24). A medium is supplied to the transfer pipe. The first circulation coil circulates the medium. The latent heat storage member heat-exchanges with the medium. The insulation layer blocks the latent heat storage member to heat-exchange with atmosphere. The unit cooler has an auxiliary transfer pipe(31), a second circulation coil(32), a heat exchange panel(33), a blower(34), and an auxiliary discharge pipe(35). The cold air radiating plate has an inlet pipe(41), a third circulation coil(42), and an outlet pipe(43) which transfers the medium to the thermal storage tank.

Description

Air-conditioning structure using heat storage system {AIR COOLING AND HEATING STRUCTURE USING THERMAL STORAGE SYSTEM}

The present invention relates to a cooling and heating structure using a heat storage system, and more particularly, by maintaining an internal temperature of a vehicle in which various types of logistics requiring passengers or freshness are loaded by using a heat storage system operated through electricity. It relates to a cooling and heating structure using a heat storage system for transporting the car safely.

In general, transportation means including a refrigeration truck, a bus, a train, an airplane, etc. for transporting passengers or logistics are operated by an engine-driven air conditioner driven by a main engine or a sub-engine. The inside where the lamp is loaded is heated and heated.

However, the engine-driven air conditioner is operated by using power or oil obtained when the vehicle is being driven, which not only consumes excessive oil, but also causes an increase in maintenance costs, and often causes an overload of the engine. There is a safety problem.

The heating and cooling structure using the heat storage system does not use the power of the main engine or the sub-engine, but uses electricity to cool or heat the latent heat heat storage material, which is a phase change material, in advance and store the heat storage material. Representative examples of the cooling and heating structure using the system may be mentioned.

[1] is a heat storage system applied to a refrigeration vehicle, briefly look at the electric charges are stored in the storage means when the latent heat storage material is pre-cooled by driving the cooling means through the low-cost late-night electricity in the storage means Cold energy is transferred to the cold storage means installed in the storage box, and the inside of the storage box is refrigerated and frozen by a natural convection method through heat exchange with the atmosphere.

In other words, [Refer to Document 1] by refrigeration and refrigeration of the inside of the loading box using a low-cost electric power, which is low in electric charges, the fuel cost is reduced by about 90% compared to refrigeration and refrigeration using an engine-driven air-conditioning structure. It is economical because it saves about 10%, and it is environmentally friendly due to the reduction of C02 and harmful gas emission during operation.

In addition, since the latent heat storage material stored in the heat storage means maintains the internal temperature of the storage box in a natural convection method that descends from the ceiling through heat exchange with the atmosphere, it is possible to efficiently use it such that it can be kept below a certain temperature for a long time. .

[Document 1] KR 20-0231247 2001.07.19

However, [1] is a simple natural convection method, and the inside of the loading compartment is refrigerated and frozen, even without operating a refrigeration car, the latent heat storage material is continuously heat exchanged with the atmosphere, causing unnecessary exhaustion of cold energy. When operating a refrigeration car, there is a problem in the refrigeration and freezing.

In addition, the document [1] has no temperature control at all, and in the case of logistics that must be controlled at any time, it is difficult to store and transport, which is a limitation of logistics, as well as the storage system to a number of transportation means It also acts as an obstacle in expanding dissemination.

In addition, the document [1] using the natural convection method is excessive to restore the internal temperature of the raised storage box to the optimum temperature due to the outside air at the time of opening the tail gate for loading or unloading the logistics stored in the storage box. Time is required, which adversely affects the freshness of logistics.

Therefore, the present invention solves the problem by the simple natural convection method, solves the problem that the temperature control is not made, and also solves the problem that the outside air is introduced into the inside of the loading box, and furthermore, the problem caused by the delay of restoring the internal temperature To solve the problem.

An object of the present invention, by applying a forced circulation method to maximize the heating and cooling efficiency as well as can be used for a long time, to minimize the inflow of outside air to suppress the temperature rise, so as to shorten the time required to restore this It is to provide a cooling and heating structure using a heat storage system.

Another object of the present invention is to provide a cooling and heating structure using a heat storage system that can be freely adjusted to suit various transportation means.

The object of the present invention as described above, the medium material from the heat storage system including a storage means containing a latent heat storage material for heat exchange with the brine (Brine) that is cooled or heated by a condensing unit that is operated by a power supply. In the configuration to maintain the internal temperature of the transport means by receiving the heat stored energy,

A transfer pipe connected to the storage means and supplied with the intermediate material, having a first circulation coil connected to the transfer pipe to circulate the intermediate material, and having an intermediate material circulated along the first circulation coil therein; A heat storage tank having a latent heat storage material for heat exchange, a heat insulation layer for preventing the latent heat storage material from being heat-exchanged with the atmosphere, and having a discharge pipe connected to the first circulation coil to discharge the media material;

The secondary pipe is provided with a secondary transport pipe connected to the discharge pipe and supplied with the intermediate material, and is equipped with a second circulation coil connected to the secondary transport pipe to circulate the intermediate material. A heat exchanger panel configured to continuously heat exchange, a blower fan for blowing the heat exchanger panel, and a unit cooler having an auxiliary discharge pipe connected to the second circulation coil to transfer the medium to the heat storage tank;

An inlet pipe is connected to the auxiliary transport pipe to receive the media material, and a third circulation coil is connected to the inlet pipe to heat exchange with the atmosphere while circulating the media material, and is connected to the third circulation coil. It is achieved by including a cold plate equipped with an outlet pipe for transferring the material to the heat storage tank.

According to the configuration of the present invention as described above, the intermediate material previously stored in the heat storage system is supplied to the unit cooler and the cooling plate through the heat storage tank to circulate, and maintain the internal temperature of the vehicle by natural air convection with forced air. By doing so, it is easy to maintain the temperature and effectively block the inflow of outside air, thereby minimizing the time required for the restoration of the internal temperature.

In addition, by forming a heat insulation layer in the heat storage tank in which the latent heat storage material is stored, it is possible to operate the heating and cooling for a long time by preventing unnecessary exhaustion of energy by heat exchange with the atmosphere when the vehicle is not in operation.

In addition, the cooling and heating can be implemented simultaneously according to the season, and in the case of a refrigeration car, it can be implemented at the same time as the refrigeration and freezing is very useful invention, such as to facilitate the passenger convenience and to efficiently store and transport the logistics. .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows a schematic diagram of a cooling and heating structure according to the present invention.

That is, the present invention does not use the main engine or sub-engine of the vehicle, and uses the electric heat storage system (1) to operate the storage box and the cabin of the vehicle including a refrigerator, bus, train, airplane, etc. It is a configuration for heating and cooling.

To this end, the present invention includes a storage means (11) having a latent heat heat storage material heat-exchanging with the brine (Brine) that is cooled or heated by a condensing unit that operates mainly by using a nighttime power at night The heat storage system 1 receives the stored energy from the heat storage medium through the medium to maintain the internal temperature of the vehicle 2.

Herein, the brine is a kind of refrigerant, and a small amount of sodium dichromate or antifreeze is added, such as ph 7.5 to 8.2, so that the specific heat is large and the viscosity is low, so it can flow quickly inside the tube, the thermal conductivity is high, the solidification point is discontinuous, and the toxicity is low. And less corrosive to metals, so that no damage to the structure occurs in case of leakage.

The condensing unit 10 for cooling or heating such brine, as known, is a refrigerator or heater that is operated by being supplied with electricity through electricity, or a condenser or heater that connects the heater to the air conditioner.

Latent heat heat storage material which heat-exchanges with brine cooled or heated by the condensing unit 10 is a phase change material, and it is known that the capacity of the heat storage medium per installation volume is higher than that of water.

The storage means 11 having such a latent heat storage material is a kind of tank, which is connected to the condensing unit 10 to receive the brine and is heat-exchanged, and is provided with a supply pump 12 and a supply pipe 13. Energy stored in advance at night, that is, cold energy or heat energy, is supplied through the medium.

In this case, as the intermediate material, a brine or latent heat storage material built in the storage means 11 may be used, and any one of them may provide the same action and effect, but the storage means 11 may be When the frozen latent heat storage material is completely frozen, brine is used as a medium.

As shown in FIG. 1, the cooling and heating structure according to the present invention using the heat storage system 1 is provided including a heat storage tank 20, a unit cooler 30, and a cooling plate 40. As follows.

The heat storage tank 20 according to the present invention is mainly formed in a hexahedron is installed on the ceiling of the transport means 2, one side is provided with a transport pipe 21 is connected to the supply pipe 13 of the storage means (11) Received, the transfer pipe 21 is connected to the first circulation coil 22 to circulate the supplied medium.

A check valve is installed in the transfer pipe 21 to prevent backflow of the medium, and the first circulation coil 22 connected thereto is arranged in a zigzag manner in the heat storage tank 20.

In the heat storage tank 20 in which the first circulation coil 22 is arranged, a latent heat storage material that is heat-exchanged with the medium circulated along the first circulation coil 22 is stored, and the latent heat storage material is a storage means 11. The latent heat storage material is thus stored in the cold energy or heat energy in the heat exchange process with the intermediate material.

At this time, the heat storage tank 20 is formed with a heat insulating layer 23 mainly made of urethane material to block the latent heat storage material stored therein heat exchange with the atmosphere, the heat insulating layer 23 is 5 to the portion in contact with the atmosphere. It is formed to a thickness of 30mm to block heat exchange.

That is, if the entire heat storage tank 20 formed mainly on the hexahedron and installed in the vehicle 2 is in contact with the atmosphere, the heat insulation layer 23 is formed over the entire circumference of the heat storage tank 20, and as an example, the heat storage tank If only the lower portion of the (20) is in contact with the atmosphere is to form a heat insulation layer 23 by only the urethane material to the lower portion.

Therefore, it is possible to prevent unnecessary exhaustion of energy stored in the heat storage tank 20 during non-operation of the transportation means 2 by blocking heat exchange with the air through the heat insulation layer 23, thereby preventing the heating and cooling for a long time. You won't be indebted.

It is reported that through the heat insulating layer 23, the cold energy or heat energy in the heat storage tank 20 can maintain the heat storage state for about 48 hours.

A discharge pipe 24 connected to the first circulation coil 22 is installed at one side of the heat storage tank 20 in which the heat insulation layer 23 is formed to discharge the latent heat heat storage material and the medium having undergone heat exchange.

Unit cooler (Unite cooler) according to the present invention is mainly installed on the inner wall of the vehicle (2) is supplied with the medium discharged from the heat storage tank 20 to circulate, in the process of intensively storing energy and forced ventilation It will increase the heating and cooling efficiency.

To this end, the unit cooler 30 is connected to the discharge pipe 24 through the transfer pump 25 is provided with an auxiliary transport pipe 31 for receiving the media material, there is connected to the auxiliary transport pipe 31 to the media material The second circulation coil 32 is circulated, and the second circulation coil 32 is continuously arranged with a heat exchange panel 33 for temporarily storing energy by exchanging heat with the circulating medium.

Here, the first opening and closing valve 26 that is a three-way valve (Three way valve) is installed in the discharge pipe 24 to supply the intermediate material discharged from the heat storage tank 20 to the auxiliary transfer pipe 31 and at the same time the first opening and closing A drain pipe 14 connected to the storage means 11 is connected to the valve 26 to transfer the medium material having completely consumed energy to the storage means 11.

Accordingly, when the vehicle 2 is operated, the medium is circulated to maintain the internal temperature, and when the vehicle 2 is completed and entered into the distribution warehouse, the drain pipe 14 is connected to the first opening / closing valve 26. ) Will be transferred to the storage means (11) mediated energy is exhausted.

The second circulation coil 32 which circulates the mediator material is shown to be connected in parallel to the auxiliary transport pipe 31 in two lines so that the circulation of the mediator can be made more efficiently. Accordingly, the mediator is the second circulation coil 32 The heat exchange panel 33 is heat exchanged with the heat exchange panel 33 while being circulated at the same time.

Blowing fan (Fan) is installed in the heat exchange panel 33 in close proximity to force the temporarily stored energy, and the second circulation to transfer the media material heat exchanged with the heat exchange panel 33 to the heat storage tank (20) An auxiliary discharge pipe 35 is connected between the coil 32 and the transfer pipe 21.

That is, the intermediate material heat-exchanged with the latent heat storage material in the heat storage tank 20 is supplied to the auxiliary transfer pipe 31 through the discharge pipe 24, in the process along the second circulation coil 32 through the transfer pump 25 Heat exchange with the heat exchange panel 33 while forced circulation, which causes the heat exchange panel 33 to temporarily store the cold energy or heat energy contained in the medium.

The energy temporarily stored in the heat exchange panel 33 is forcedly blown into the vehicle 2 by the driving of the blower fan 34 to cool and heat the passenger, thereby maintaining the freshness of the passenger or logistics.

Cooling plate 40 according to the present invention is circulated by receiving the medium discharged from the heat storage tank 20 to the unit cooler 30, in this process by heat exchange with energy to the atmosphere, and through this means of transport ( The inside of 2) is heated and heated.

To this end, the cooling plate 40 is connected to the auxiliary transport pipe 31 is provided with an inlet pipe 41 for receiving the media material, the third circulation is connected to the inlet pipe 41 to circulate the media material The coil 42 is mounted, and the third circulation coil 32 is connected to an outlet pipe 43 for transferring the medium having completed heat exchange with the atmosphere to the heat storage tank 20.

Therefore, the intermediate material heat-exchanged with the latent heat storage material in the heat storage tank 20 is supplied to the inlet pipe 41 through the auxiliary transfer pipe 31, and in this process is forcedly circulated along the third circulation coil 42 to exchange heat with the atmosphere. Thus, the energy inside the vehicle 2 is cooled by natural convection.

The medium material heat-exchanged with the atmosphere while circulating along the third circulation coil 42 is transferred to the heat storage tank 20 through the outlet pipe 43 to be heat-exchanged with the latent heat heat storage material again. In this process, the medium material is a unit cooler ( It is shown that the second opening and closing valve 44, which is a three-way valve, is connected to the auxiliary discharge pipe 35 so that the outlet pipe 43 does not flow back to 30).

Here, the auxiliary transport pipe 31 and the inlet pipe 41 through which the media material discharged from the heat storage tank 20 is circulated are connected by a third open / close valve 45 which is a three-way valve to selectively circulate the media material. .

Therefore, the medium discharged from the heat storage tank 20 is supplied to the inlet pipe 41 through the third opening / closing valve 45 and is naturally convection through the cooling plate 40, or is supplied to the auxiliary transfer pipe 31 to supply the unit cooler. Forced blowing in the interior of the vehicle (2) through (30).

Such a cooling plate 40 is mainly installed at the entrance and exit of the vehicle (2), thereby minimizing the inflow of outside air when the passengers or the logistics to get on and off, and shortens the restoration of the internal temperature after getting on and off. .

That is, the inflow of outside air inevitably occurs at the time of getting off the logistics loaded or loaded inside the transportation means 2, but if the cooling plate 40 is installed at the entrance of the transportation means 2, the natural convection method As it can minimize the inflow of outside air, it is possible to reduce the temperature change caused by getting on and off and to quickly restore the optimum temperature within about 5 to 20 minutes.

The temperature sensor 36 according to the present invention is connected to the blowing fan 34 and the transfer pump 25 to control each drive, thereby preventing the internal temperature of the vehicle 2 from being excessively low or rising. Done.

That is, the temperature sensor 36 detects that the internal temperature of the transport means 2 is lower or higher than the set temperature, thereby controlling the driving of the blower fan 34 and the transfer pump 25, and the temperature sensor ( 36 is preferably interlocked with a controller to enable driving control of the blowing fan 34 and the transfer pump 25 at a long distance.

On the other hand, the cooling and heating structure according to the present invention including the heat storage tank 20, the unit cooler 30, the cooling plate 40 is blown by selectively supplied cold energy or heat energy to maintain the internal temperature of the transport means (2) Although it is demonstrated, it is also necessary to blow the said cold energy and heat energy simultaneously as needed.

This occurs mainly in seasons with severe crossovers, such as in spring or autumn, and requires heating through heat energy in the morning and evening, and cooling through cold energy during the day.

To this end, the air-conditioning structure according to the present invention is installed in parallel to the heat storage tank 20, the unit cooler 30 and the cooling plate 40 to the transport means 2, thereby regenerating the cold energy and heat energy at the same time In this state, the interior of the vehicle is selectively cooled and heated.

Therefore, in the case of a vehicle (2) in which a passenger boards, such as a bus, a train, or an airplane, it is possible to maintain an internal temperature optimized for the passenger's feeling by crossing the heating and cooling system according to a crossover, and the vehicle (2) is a refrigerator vehicle. The storage compartment is divided into a refrigerator compartment and a freezer compartment to enable individual storage and transportation according to the type of logistics.

1 is a schematic diagram showing a cooling and heating structure according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1-Heat storage system 2-Vehicle

10-condensing unit 11-storage means

20-heat storage tank 21-transfer pipe

22-First circulation coil 23-Insulation layer

24-discharge line 25-transfer pump

30-Unit cooler 31-Auxiliary transport tube

32-2nd circulating coil 33-Heat exchange panel

34-Blower fan 35-Auxiliary exhaust pipe

36-Temperature sensor 40-Cooling plate

41-Inlet pipe 42-Third circulation coil

43-Outlet pipe 44-Second open / close valve

45-3rd open / close valve

Claims (6)

Means for transporting the stored energy through the medium from a heat storage system including a storage means with a latent heat storage material for heat exchange with a brine cooled or heated by a condensing unit that is powered and operated In the configuration to maintain the internal temperature of, A transfer pipe connected to the storage means and supplied with the intermediate material, having a first circulation coil connected to the transfer pipe to circulate the intermediate material, and having an intermediate material circulated along the first circulation coil therein; A heat storage tank having a latent heat storage material for heat exchange, a heat insulation layer for preventing the latent heat storage material from being heat-exchanged with the atmosphere, and having a discharge pipe connected to the first circulation coil to discharge the media material; The secondary pipe is provided with a secondary transport pipe connected to the discharge pipe and supplied with the intermediate material, and is equipped with a second circulation coil connected to the secondary transport pipe to circulate the intermediate material. A heat exchanger panel configured to continuously heat exchange, a blower fan for blowing the heat exchanger panel, and a unit cooler having an auxiliary discharge pipe connected to the second circulation coil to transfer the medium to the heat storage tank; An inlet pipe is connected to the auxiliary transport pipe to receive the media material, and a third circulation coil is connected to the inlet pipe to exchange heat with the atmosphere while circulating the media material, and is connected to the third circulation coil. Cooling and heating structure using a heat storage system, characterized in that it comprises a cooling plate provided with an outlet pipe for transferring to the heat storage tank. The heating and cooling structure according to claim 1, wherein the discharge pipe and the auxiliary joint pipe are connected by a first opening / closing valve which is a three-way valve, and a drain pipe connected to the storage means is connected to the first opening / closing valve. The cooling and heating structure using a heat storage system according to claim 1, wherein the second circulation coil is connected in parallel to an auxiliary transport pipe to divide and circulate the medium. The heating and cooling structure according to claim 1, wherein the auxiliary joint pipe and the inlet pipe are connected by a third open / close valve that is a three-way valve to selectively circulate the medium. The cooling and heating structure of claim 1, wherein a temperature sensor is connected to the blower fan and the transfer pump to control the driving. The heating and cooling structure according to any one of claims 1 to 5, wherein the heat storage tank, the unit cooler, and the cooling plate are installed in parallel in a vehicle and individually driven.

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