Preconditioned air unit for aircraft using heat pipe

Abstract

The air conditioning and heating supply device for an aircraft according to the present invention is configured to pre-cool air pressurized to a high temperature by a high-pressure blower using a heat pipe, thereby having the advantage of reducing the load on the evaporator and saving power consumption. In addition, among the heat pipes, the heat absorption part is configured to be placed inside an internal duct and the heat dissipation part is configured to be placed outside an internal duct, and since the heat dissipation part can be cooled by at least one of air and cooling water, it has the advantage of being easy to cool while having a simple structure.

Description

Technology Field

[0001] The present invention relates to a heating and cooling supply device for an aircraft, and more specifically, to a heating and cooling supply device for an aircraft using a heat pipe that can reduce the load on the evaporator and reduce the required power by pre-cooling air pressurized to a high temperature by a high-pressure blower using a heat pipe. Background Technology

[0002] Generally, when an aircraft is waiting in the parking area, it may overheat due to radiant heat from the ground and solar heat, which can not only expose equipment to danger but also cause discomfort to crew members, maintenance personnel, and passengers.

[0003] To address these issues, operating the aircraft's heating and cooling systems requires running the aircraft's engines (Auxiliary Power Units, APUs), which consumes expensive fuel and results in high costs and noise. Furthermore, the combustion process generates fine dust and NOx, which directly affect daily life, and emits CO2, a greenhouse gas.

[0004] Recently, aircraft heating and cooling systems have been developed that are installed separately from the aircraft, draw in outside air through a high-pressure blower, cool it using a heat exchanger, and then supply the cooled air to the aircraft through ducts. However, since the temperature of the air drawn in by the high-pressure blower rises due to adiabatic compression, there is a problem in that the load on the evaporator required to cool the air increases and the power consumption increases. Prior art literature

[0005] Korean Registered Patent No. 10-1718526 The problem to be solved

[0006] The objective of the present invention is to provide an aircraft heating and cooling supply system using a heat pipe that can reduce power consumption by reducing the load on the evaporator. means of solving the problem

[0007] The present invention relates to an aircraft cooling and heating supply device installed in an airport apron and supplying air for cooling or heating to the cabin of an aircraft through a high-pressure hose, comprising: an air conditioning device installed inside a main body and including a compressor, a condenser, an expansion valve, and an evaporator; a high-pressure blower installed inside the main body and sucking in outside air at high pressure; an internal duct installed inside the main body and guiding the air sucked in through the high-pressure blower to pass through the evaporator and be discharged through the high-pressure hose; a heat pipe comprising a heat absorption section disposed inside the internal duct that absorbs heat from the air sucked in through the high-pressure blower and vaporizes the internal working fluid, and a heat dissipation section that communicates with the heat absorption section but is disposed outside the internal duct and releases the heat of the working fluid transferred from the heat absorption section to the outside to cool the working fluid; and a heat pipe cooling means for cooling the heat dissipation section among the heat pipes.

[0008] The above heat pipe cooling means may include a blower for a heat dissipation unit that blows outside air to the heat dissipation unit to cool the heat dissipation unit.

[0009] The heat pipe cooling means may include a condenser blower disposed in the air passage between the heat dissipation part and the condenser, which cools the heat dissipation part by air sucked into the condenser.

[0010] The heat pipe cooling means may further include a cooling water supply unit that cools the heat dissipation unit using at least a portion of the condensate generated in the evaporator and cooling water supplied from the outside.

[0011] The above cooling water supply unit may further include an evaporator condensate supply path for guiding condensate generated in the evaporator to the heat dissipation unit, a condensate sprayer connected to the evaporator condensate supply path for spraying condensate supplied from the evaporator condensate supply path toward the heat dissipation unit, and a condensate flow control valve installed in the evaporator condensate supply path for controlling the flow rate of condensate sprayed through the condensate sprayer.

[0012] It may further include a control unit that controls the opening rate of the condensate flow control valve according to at least one of the ambient temperature and the temperature of the air discharged through the high-pressure hose.

[0013] The above cooling water supply unit may include an external cooling water supply channel for supplying cooling water supplied from the outside to the heat dissipation unit, a cooling water injector connected to the external cooling water supply channel for spraying cooling water supplied from the external cooling water supply channel toward the heat dissipation unit, and a cooling water flow control valve installed in the external cooling water supply channel for controlling the flow rate of cooling water sprayed through the cooling water injector.

[0014] It may further include a control unit that controls the opening rate of the cooling water flow control valve according to at least one of the ambient temperature and the temperature of the air discharged through the high-pressure hose.

[0015] The heat pipe cooling means may further include a blower that blows air to the heat dissipation section to cool the heat dissipation section, and a cooling water heat exchange tube that passes at least a portion of the condensate generated in the evaporator and cooling water supplied from the outside through it to exchange heat with the air flowing to the heat dissipation section.

[0016] The above cooling water supply unit may include a cooling water tank formed to store at least a portion of the condensate generated in the evaporator and cooling water supplied from the outside, and to immerse the heat dissipation unit.

[0017] In the above heat pipe, the heat absorption part may be arranged vertically within the inner duct, and the heat dissipation part may be arranged vertically outside the inner duct.

[0018] The heat pipe may have the heat absorption portion arranged vertically within the inner duct and the heat dissipation portion arranged externally within the inner duct, extending in a direction inclined at a set angle from the heat absorption portion.

[0019] In the above heat pipe, the heat absorption part may be arranged diagonally in a long manner inside the inner duct, and the heat dissipation part may be arranged diagonally in a long manner outside the inner duct.

[0020] The heat pipe may have the heat absorption portion arranged horizontally in a long manner inside the inner duct, and the heat dissipation portion arranged outside the inner duct in a long manner at a set angle from the heat absorption portion.

[0021] The above air conditioning device may include a refrigerator that performs a refrigerant cycle in which a refrigerant circulates through the compressor, the condenser, the expansion valve, and the evaporator during cooling operation, and an electric heater that heats the air sucked in through the high-pressure blower during heating operation.

[0022] The above air conditioning device may include a heat pump that further includes a four-way valve, wherein the refrigerant flow path is switched according to cooling operation and heating operation.

[0023] In addition, the present invention relates to an aircraft cooling and heating supply device installed in an airport apron and supplying air for cooling or heating to the cabin of an aircraft through a high-pressure hose, comprising: an air conditioning device installed inside a main body and including a compressor, a condenser, an expansion valve, and an evaporator; a high-pressure blower installed inside the main body and sucking in outside air at high pressure; an internal duct installed inside the main body and guiding the air sucked in through the high-pressure blower to pass through the evaporator and be discharged through the high-pressure hose; a heat pipe comprising a heat absorption section disposed inside the internal duct that absorbs heat from the air sucked in through the high-pressure blower and vaporizes the internal working fluid, and a heat dissipation section that communicates with the heat absorption section but is disposed outside the internal duct and releases the heat of the working fluid transferred from the heat absorption section to the outside to cool the working fluid; a blower that blows air to the heat dissipation section to cool the heat dissipation section; and a cooling water sprayer that sprays cooling water onto the heat dissipation section to cool the heat dissipation section. It includes a control unit that selectively operates at least one of the blower and the cooling water sprayer according to at least one of the ambient temperature and the temperature of the air discharged through the high-pressure hose.

[0024] In addition, the present invention relates to an aircraft cooling and heating supply device installed in an airport apron and supplying air for cooling or heating to the cabin of an aircraft through a high-pressure hose, comprising: an air conditioning device installed inside a main body and including a compressor, a condenser, an expansion valve, and an evaporator; a high-pressure blower installed inside the main body and sucking in outside air at high pressure; an internal duct installed inside the main body and guiding the air sucked in through the high-pressure blower to pass through the evaporator and be discharged through the high-pressure hose; a heat pipe comprising a heat absorption section disposed inside the internal duct that absorbs heat from the air sucked in through the high-pressure blower and vaporizes the internal working fluid, and a heat dissipation section that communicates with the heat absorption section but is disposed outside the internal duct and releases the heat of the working fluid transferred from the heat absorption section to the outside to cool the working fluid; a blower that blows air to the heat dissipation section to cool the heat dissipation section; and a cooling water sprayer that sprays cooling water onto the heat dissipation section to cool the heat dissipation section. It includes a cooling water heat exchange tube that passes at least a portion of the condensate generated in the evaporator and cooling water supplied from the outside to exchange heat with the air flowing to the heat dissipation section; and a control unit that selectively operates at least one of the blower, the cooling water injector, and the cooling water heat exchange tube according to at least one of the ambient air temperature, the temperature of the condensate, and the temperature of the air discharged through the high-pressure hose. Effects of the invention

[0025] The air conditioning and heating supply device for an aircraft according to the present invention is configured to pre-cool air pressurized to a high temperature by a high-pressure blower using a heat pipe, thereby having the advantage of reducing the load on the evaporator and reducing the power required.

[0026] In addition, the heat pipe is configured such that the heat absorption part is positioned inside the inner duct and the heat dissipation part is positioned outside the inner duct, and since the heat dissipation part can be cooled by at least one of air and cooling water, there is an advantage of having a simple structure and easy cooling. Brief explanation of the drawing

[0027] FIG. 1 is a schematic diagram showing an aircraft heating and cooling supply device according to a first embodiment of the present invention. FIG. 2 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to a second embodiment of the present invention. FIG. 3 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to a third embodiment of the present invention. FIG. 4 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the fourth embodiment of the present invention. FIG. 5 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the fifth embodiment of the present invention. FIG. 6 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the 6th embodiment of the present invention. FIG. 7 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the seventh embodiment of the present invention. FIG. 8 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the eighth embodiment of the present invention. FIG. 9 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the ninth embodiment of the present invention. FIG. 10 is a cross-sectional view of an internal duct equipped with a heat pipe according to the 10th embodiment of the present invention. FIG. 11 is a cross-sectional view of an internal duct equipped with a heat pipe according to the 11th embodiment of the present invention. FIG. 12 is a cross-sectional view of an internal duct equipped with a heat pipe according to the 12th embodiment of the present invention. FIG. 13 is a cross-sectional view of an internal duct equipped with a heat pipe according to the 13th embodiment of the present invention. Specific details for implementing the invention

[0028] Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

[0029] An aircraft cooling and heating supply device according to embodiments of the present invention is a device installed in an airport apron to supply cooling or heating air generated inside a main body into the cabin of an aircraft.

[0030] FIG. 1 is a schematic diagram showing an aircraft heating and cooling supply device according to a first embodiment of the present invention.

[0031] Referring to FIG. 1, an aircraft heating and cooling supply device according to the first embodiment of the present invention includes a main body (1), an air conditioning unit, a high-pressure blower (20), an internal duct (30), a heat pipe (40), and a heat pipe cooling means.

[0032] The main body (1) is installed in the apron of the airport, etc. The main body (1) has an intake port (not shown) for receiving outside air and an exhaust port (not shown) for discharging air conditioned from the inside. A high-pressure hose (2) is connected to the exhaust port (not shown). The high-pressure hose (2) connects the main body (1) to the cabin of the aircraft to form an air passage that guides the conditioned air.

[0033] The above air conditioning device includes a refrigerator (10) that performs a refrigerant cycle in which a refrigerant circulates during cooling operation, comprising a compressor (11), a condenser (12), an expansion valve (13), and an evaporator (14), and an electric heater (6) that heats the air sucked in through the high-pressure blower during heating operation.

[0034] In the above-described refrigerator (10), the compressor (11), the condenser (12), the expansion valve (13), and the evaporator (14) are connected by a refrigerant path (15) to form a refrigerant cycle. In this embodiment, the heat pump (10) is described as forming a single refrigerant cycle, but it is not limited thereto and is configured to form a plurality of refrigerant cycles, and the refrigerants circulating through each of the plurality of refrigerant cycles are configured so as not to mix with one another.

[0035] A blower (12a) for the condenser is installed in the above condenser (12).

[0036] The blower (12a) for the condenser blows the internal air of the main body (1) toward the condenser (12).

[0037] The above evaporator (14) is a heat exchanger installed inside the internal duct (30) that exchanges heat between the air introduced through the high-pressure blower (20) and the refrigerant to cool the air and evaporate the refrigerant.

[0038] The high-pressure blower (20) above is a turbofan that sucks in outside air at high pressure. One side of the high-pressure blower (20) is connected to the suction chamber (21), and the other side is installed to be connected to the internal duct (30).

[0039] The suction chamber (21) is installed to be connected to the intake port of the main body (1), and is equipped with an air filter (4) and an electric heater (6) inside. The suction chamber (21) is described as having a cross-sectional area that gradually decreases as it approaches the part connected to the high-pressure blower (20).

[0040] The above internal duct (30) is a duct that connects the high-pressure blower (20) and the high-pressure hose (2) to guide the air sucked in through the high-pressure blower (20) to pass through the evaporator (14) and be discharged through the high-pressure hose (2).

[0041] Inside the internal duct (30), the evaporator (14) and the heat absorption section (41) of the heat pipe (40) are provided.

[0042] The heat pipe (40) is divided into an absorption section (41) and a heat dissipation section (42), and the absorption section (41) and the heat dissipation section (42) are formed to be connected so that the working fluid filled inside can move. The inside of the heat pipe (40) is filled with working fluid. A capillary structure is formed inside the heat pipe (40), so that when heat is supplied from the absorption section (41), the working fluid vaporizes, and the vaporized working fluid moves to the heat dissipation section (42) by the capillary principle. The working fluid that is cooled and condensed in the heat dissipation section (42) moves back to the absorption section (41) by the capillary principle.

[0043] The heat pipe (40) is described as being formed vertically in an elongated manner perpendicular to the direction of air flow in the inner duct (30). That is, the heat absorption section (41) is described as forming a vertically elongated flow path inside the inner duct (30), and the heat dissipation section (42) is described as forming a vertically elongated flow path outside the inner duct (30). Although the heat pipe (40) is described as being formed in a rod shape that is arranged vertically, it is also possible to have multiple rod-shaped pipes individually provided, or for multiple pipes to be formed to be interconnected.

[0044] Among the heat pipes (40), the heat absorption part (41) is placed inside the inner duct (30), and the heat dissipation part (42) is placed outside the inner duct (30).

[0045] The above heat absorption section (41) is a part in which the internal working fluid vaporizes by absorbing the heat of the air sucked in through the high-pressure blower (20) inside the internal duct (30).

[0046] The heat dissipation part (42) is connected to the heat absorption part (41) and is positioned outside the internal duct (30), and is a part that cools the working fluid by releasing the heat of the working fluid that has been vaporized and moved from the heat absorption part (41) to the outside. In this embodiment, the heat dissipation part (42) is described as being positioned outside the main body (1) so as to be exposed to the atmosphere, but it is not limited thereto, and it is also possible to position it inside the main body (1) and outside the internal duct (30).

[0047] The above heat pipe cooling means is a device for cooling the heat dissipation part (42) among the heat pipes (40).

[0048] The above heat pipe cooling means is a blower (100) for a heat dissipation unit installed in front of the heat dissipation unit (42) and blowing outside air toward the heat dissipation unit (42).

[0049] The above-described blower (100) for the heat dissipation unit is mounted on the outside of the main body (1) and installed at a position spaced apart from the front of the heat dissipation unit (42), but is not limited thereto and can, of course, be detachably coupled to the heat dissipation unit (42).

[0051] The operation of the aircraft heating and cooling supply device according to the first embodiment of the present invention configured as described above is as follows.

[0052] When the high-pressure blower (20) is operated during cooling operation, outside air is introduced into the intake chamber (21), passes through the air filter (4), and then enters the internal duct (30).

[0053] The air introduced into the internal duct (30) passes through the heat absorption section (41) of the heat pipe (40) and is cooled by exchanging heat with the working fluid inside the heat absorption section (41).

[0054] The air pre-cooled in the heat absorption section (41) passes through the evaporator (14) and is further cooled by exchanging heat with the refrigerant.

[0055] The air cooled in the above evaporator (14) can be supplied into the cabin of the aircraft through the above high-pressure hose (2).

[0056] Meanwhile, the working fluid that has absorbed heat through heat exchange with air in the heat absorption section (41) of the heat pipe (40) is vaporized and moves to the heat dissipation section (42).

[0057] When the blower (100) for the heat dissipation unit is operated, the working fluid in the heat dissipation unit (42) can be cooled by air.

[0058] The working fluid, which is condensed by heat exchange with air inside the heat dissipation section (42), moves back to the heat absorption section (41) by the capillary principle.

[0059] That is, the working fluid within the heat pipe (40) circulates through the heat absorption section (41) and the heat dissipation section (42).

[0060] As described above, in the present invention, by installing the heat pipe (40), the air flowing into the internal duct (30) can be pre-cooled, thereby reducing the load of the evaporator (14) and reducing the required power.

[0061] In addition, the heat pipe (40) has the advantage of not being affected by gravity compared to conventional heat exchangers based on the heat siphon principle that move refrigerant by gravity, so there are no restrictions on the installation direction or location. That is, the heat pipe (40) can be installed in the direction of the airflow, thereby further improving cooling efficiency.

[0063] Meanwhile, FIG. 2 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to a second embodiment of the present invention.

[0064] Referring to FIG. 2, the heat pipe cooling means according to the second embodiment of the present invention is different from the first embodiment in that it uses a condenser blower (200) that uses air sucked into the condenser (12) to cool the heat dissipation part (42) by forcibly blowing air into the heat dissipation part (42), and the rest of the configuration and operation are similar to the first embodiment. Therefore, detailed descriptions of similar configurations are omitted below, and the explanation focuses on the differences.

[0065] The blower (200) for the condenser is placed in the air passage between the heat dissipation part (42) and the condenser (12).

[0066] The heat dissipation unit (42) and the condenser (12) are spaced apart at a predetermined distance along the direction of the air flow. The heat dissipation unit (42) and the condenser (12) may be installed inside or outside the main body (1).

[0067] Therefore, the air sucked into the condenser (12) can cool the heat dissipation part (42) as it passes through the heat dissipation part (42).

[0068] In the second embodiment of the present invention, the heat dissipation part (42) can be cooled using the condenser blower (200), so there is an advantage that a separate blower does not need to be installed.

[0070] Meanwhile, FIG. 3 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to a third embodiment of the present invention.

[0071] Referring to FIG. 3, the heat pipe cooling means according to the third embodiment of the present invention is different from the above embodiments in that it cools the heat dissipation part (42) using cooling water, and cools the heat dissipation part (40) using condensed water generated in the evaporator (14). Since the remaining configuration and operation are similar to the first embodiment, a detailed description of similar configurations is omitted below, and the explanation focuses on the differences.

[0072] The above cooling water supply unit (300) includes an evaporator condensate tank (301), an evaporator condensate supply path (302), a condensate sprayer (303), and a condensate flow control valve (304).

[0073] The above evaporator condensate tank (301) is positioned at the bottom of the evaporator (14) and is a tank for collecting low-temperature condensate generated in the evaporator (14). The above evaporator condensate tank (301) may be formed integrally with the evaporator (14) or may be detachably coupled to the bottom of the evaporator (14). Additionally, although the above evaporator condensate tank (301) has been described as being provided in communication with the internal duct (30) as an example, it is not limited thereto and may also be provided inside the internal duct (30).

[0074] The above evaporator condensate supply path (302) is a condensate path that connects the evaporator condensate tank (301) and the condensate sprayer (303) to guide the condensate collected in the evaporator condensate tank (301) to the condensate sprayer (303).

[0075] A condensate pump (305) for pumping condensate stored in the evaporator condensate tank (301) is installed in the above evaporator condensate supply channel (302).

[0076] The above condensate sprayer (303) is a nozzle connected to the evaporator condensate supply channel (302) and installed toward the heat dissipation unit (42) to spray condensate toward the heat dissipation unit (42). A plurality of the above condensate sprayers (303) are arranged spaced apart from each other at a predetermined distance.

[0077] The above condensate flow control valve (304) is a valve installed in the evaporator condensate supply path (302) to control the flow rate of condensate sprayed through the condensate sprayer (303).

[0078] The above-described aircraft heating and cooling supply device further includes a control unit (not shown) that controls the opening rate of the condensate flow control valve (304) according to the outside air temperature.

[0079] For example, the above control unit (not shown) can cool the heat dissipation unit (42) using only the outside air when the outside air temperature is below a preset first set temperature, so the condensate flow control valve (304) can be shielded or the opening rate of the condensate flow control valve (304) can be controlled to a preset minimum opening rate.

[0080] Additionally, the control unit (not shown) can control the opening rate of the condensate flow control valve (304) to a preset opening rate according to the temperature of the outside air when the outside air temperature is above the first set temperature. The opening rate of the condensate flow control valve (304) can be set in proportion to the temperature of the outside air.

[0081] However, not limited thereto, the control unit (not shown) can, of course, also control the opening rate of the condensate flow control valve (304) to increase as the temperature of the air discharged through the high-pressure hose (2) increases.

[0083] FIG. 4 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the fourth embodiment of the present invention.

[0084] Referring to FIG. 4, the heat pipe cooling means according to the fourth embodiment of the present invention is different from the third embodiment in that it cools the heat dissipation part (42) using cooling water, and the cooling water supply part (400) cools the heat dissipation part using cooling water supplied from the outside. Since the remaining configuration and operation are similar to the first embodiment, a detailed description of similar configurations is omitted below, and the explanation focuses on the differences.

[0085] The above cooling water supply unit (400) includes an external cooling water supply channel (401), a cooling water injector (402), and a cooling water flow control valve (403).

[0086] The above external cooling water supply channel (401) is a channel for guiding cooling water supplied from the outside to the heat dissipation unit (42).

[0087] The above-mentioned cooling water sprayer (402) is a nozzle connected to the external cooling water supply channel (401) and installed toward the heat dissipation unit (42) to spray cooling water toward the heat dissipation unit (42). A plurality of the above-mentioned cooling water sprayers (402) are arranged at a predetermined distance from each other.

[0088] The above cooling water flow control valve (403) is a valve installed in the above external cooling water supply path (401) to control the flow rate of cooling water sprayed through the above cooling water injector (402).

[0089] The above-described aircraft heating and cooling supply device further includes a control unit (not shown) that controls the opening rate of the cooling water flow control valve (403) according to the outside air temperature.

[0090] For example, the above control unit (not shown) can cool the heat dissipation unit (42) using only the outside air when the outside air temperature is below a preset first set temperature, so the cooling water flow control valve (403) can be shielded or the opening rate of the cooling water flow control valve (403) can be controlled to a preset minimum opening rate.

[0091] Additionally, the control unit (not shown) may open the cooling water flow control valve (403) at a preset opening rate according to the ambient temperature when the ambient temperature is above the first set temperature. The opening rate of the cooling water flow control valve (403) may be set in proportion to the ambient temperature.

[0092] However, not limited thereto, the control unit (not shown) can, of course, also control the opening rate of the cooling water flow control valve (403) to increase as the temperature of the air discharged through the high-pressure hose (2) increases.

[0094] FIG. 5 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the fifth embodiment of the present invention.

[0095] Referring to FIG. 5, the heat pipe cooling means according to the fifth embodiment of the present invention is different from the third and fourth embodiments in that it cools the heat dissipation part (42) using cooling water and includes a cooling water tank (500) formed so that the heat dissipation part (42) of the heat pipe (40) is immersed therein. Since the remaining configuration and operation are similar to the first embodiment, a detailed description of similar configurations is omitted below, and the explanation focuses on the differences.

[0096] The above cooling water tank (500) is a tank formed such that at least a portion of the condensate generated in the evaporator (14) and the cooling water supplied from the outside is stored, and the heat dissipation unit (42) is submerged.

[0097] Referring to FIG. 5, in this embodiment, the cooling tank (500) is described as being installed outside the main body (1), but it is not limited thereto. As long as the structure allows the heat dissipation part (42) to be submerged in the cooling tank (500), the installation location of the cooling tank (500) can be varied.

[0099] FIG. 6 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the 6th embodiment of the present invention.

[0100] Referring to FIG. 6, the heat pipe cooling means according to the sixth embodiment of the present invention utilizes both air and cooling water, and is different from the above embodiments in that it includes a blower (610) that blows air to the heat dissipation part (42) of the heat pipe (40) to cool the heat dissipation part (42), and a cooling water supply part (620) that sprays cooling water onto the heat dissipation part (42). Since the remaining configuration and operation are similar to the first embodiment, a detailed description of similar configurations is omitted below, and the explanation focuses on the differences.

[0101] The above blower (610) is described as a blower for a heat dissipation unit installed in front of the heat dissipation unit (42) to force outside air into the heat dissipation unit (42) and cool the heat dissipation unit (42).

[0102] The above cooling water supply unit (620) is installed in front of the blower (610) and cools the heat dissipation unit (42) by using at least a portion of the condensate generated in the evaporator (14) and cooling water supplied from the outside as cooling water.

[0103] The above cooling water supply unit (620) includes a cooling water supply channel (621), a cooling water injector (622), and a cooling water flow control valve (623).

[0104] The above control unit (not shown) can control the operation of the blower (610) and the cooling water flow control valve (623) according to at least one of the outside air temperature, the temperature of the cooling water, and the temperature of the air discharged through the high-pressure hose (2).

[0105] For example, the above control unit (not shown) can cool the heat dissipation unit (42) using only the outside air when the outside air temperature is below a preset first set temperature, so the cooling water flow control valve (623) can be shielded or controlled at a minimum opening rate.

[0106] In addition, the control unit (not shown) can open the cooling water flow control valve (623) at a preset opening rate according to the temperature of the outside air if the outside air temperature is above the first set temperature.

[0107] However, not limited thereto, the control unit (not shown) can, of course, also control the opening rate of the cooling water flow control valve (623) to increase as the temperature of the air discharged through the high-pressure hose (2) increases.

[0108] Referring to FIG. 6, in the sixth embodiment of the present invention, the cooling water supply unit (620), the blower (610), and the heat dissipation unit (42) are arranged in order in the direction of air flow, but this is not limited thereto and the positions of the cooling water supply unit (620) and the blower (610) can be swapped.

[0109] As described above, in the sixth embodiment of the present invention, the heat dissipation unit (42) can be cooled using both forced air and cooling water, so the cooling efficiency of the heat dissipation unit (42) can be further increased. If the cooling efficiency of the heat dissipation unit (42) increases, the load of the evaporator (14) can be reduced.

[0111] FIG. 7 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the seventh embodiment of the present invention.

[0112] Referring to FIG. 7, the heat pipe cooling means according to the seventh embodiment of the present invention is different from the above embodiments in that it utilizes both air and cooling water, and includes a condenser blower (710) that blows air to the heat dissipation part (42) of the heat pipe (40) to cool the heat dissipation part (42), and a cooling water supply part (720) that sprays cooling water onto the heat dissipation part (42). Since the remaining configuration and operation are similar to the first embodiment, a detailed description of similar configurations is omitted below, and the explanation focuses on the differences.

[0113] The blower (710) for the condenser is positioned in the air passage between the heat dissipation unit (42) and the condenser (12). At this time, the heat dissipation unit (42) and the condenser (12) are positioned at a predetermined distance apart along the direction of the air passage and can be installed inside or outside the main body (1).

[0114] Therefore, the air sucked into the condenser (12) can cool the heat dissipation part (42) as it passes through the heat dissipation part (42).

[0115] The above cooling water supply unit (720) is installed in front of the heat dissipation unit (42) and cools the heat dissipation unit (42) by using at least a portion of the condensate generated in the evaporator (14) and the cooling water supplied from the outside as cooling water.

[0116] The above cooling water supply unit (720) includes a cooling water supply path (721), a cooling water sprayer (722), and a cooling water flow control valve (723).

[0117] The above control unit (not shown) can control the operation of the condenser blower (710) and the cooling water flow control valve (723) according to at least one of the outside air temperature, the temperature of the cooling water, and the temperature of the air discharged through the high-pressure hose (2).

[0118] For example, the above control unit (not shown) can cool the heat dissipation unit (42) using only the outside air when the outside air temperature is below a preset first set temperature, so the cooling water flow control valve (723) can be shielded or controlled at a minimum opening rate.

[0119] In addition, the control unit (not shown) can open the cooling water flow control valve (723) at a preset opening rate according to the temperature of the outside air if the outside air temperature is above the first set temperature.

[0120] However, not limited thereto, the control unit (not shown) can, of course, also control the opening rate of the cooling water flow control valve (723) to increase as the temperature of the air discharged through the high-pressure hose (2) increases.

[0121] As described above, in the seventh embodiment of the present invention, the heat dissipation unit (42) can be cooled using both forced air and cooling water, so the cooling efficiency of the heat dissipation unit (42) can be further increased. If the cooling efficiency of the heat dissipation unit (42) increases, the load of the evaporator (14) can be reduced.

[0122] In addition, in the seventh embodiment of the present invention, the heat dissipation part (42) can be cooled using the condenser blower (200), so there is an advantage that a separate blower does not need to be installed.

[0124] FIG. 8 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the eighth embodiment of the present invention.

[0125] Referring to FIG. 8, the heat pipe cooling means according to the eighth embodiment of the present invention is different from the above embodiments in that it utilizes both air and cooling water, and includes a blower (810) that blows air to the heat dissipation part (42) of the heat pipe (40) to cool the heat dissipation part (42), and a cooling water heat exchange tube (820) that cools the heat dissipation part (42) by exchanging heat between the condensate generated in the evaporator (14) and the air flowing to the heat dissipation part (42). Since the remaining configuration and operation are similar to the first embodiment, a detailed description of similar configurations is omitted below, and the explanation focuses on the differences.

[0126] The above blower (810) is described as a blower for a heat dissipation unit that is installed in front of the cooling water heat exchange tube (820) and forcibly blows outside air into the cooling water heat exchange tube (820) to cool the heat dissipation unit (42).

[0127] The above cooling water heat exchange tube (820) is a cooling water tube that passes at least a portion of the condensate generated in the evaporator (14) and cooling water supplied from the outside, and exchanges heat with the air flowing toward the heat dissipation unit (42) by the blower (810). A flow control valve (not shown) is installed in the cooling water heat exchange tube (820), so that the flow rate of the cooling water passing through the cooling water heat exchange tube (820) can be controlled according to the opening rate of the flow control valve (not shown).

[0128] The blower (810), the cooling water heat exchange tube (820), and the heat dissipation unit (42) are arranged sequentially along the direction of air flow.

[0129] As described above, in the eighth embodiment of the present invention, the heat dissipation unit (42) can be cooled using both forced air and cooling water, so the cooling efficiency of the heat dissipation unit (42) can be further increased. If the cooling efficiency of the heat dissipation unit (42) increases, the load of the evaporator (14) can be reduced.

[0131] FIG. 9 is a schematic diagram showing a heat pipe and a heat pipe cooling means according to the ninth embodiment of the present invention.

[0132] Referring to FIG. 9, the heat pipe cooling means according to the ninth embodiment of the present invention is different from the above embodiments in that it includes a blower (910), a cooling water heat exchange tube (920), and a cooling water supply unit (930), and the remaining configuration and operation are similar to the first embodiment. Therefore, detailed descriptions of similar configurations are omitted below, and the explanation focuses on the differences.

[0133] The blower (910) is installed in front of the cooling water heat exchange tube (920) to force-blow outside air into the cooling water heat exchange tube (920), thereby cooling the air by exchanging heat between the cooling water passing through the cooling water heat exchange tube (920).

[0134] The above cooling water heat exchange tube (920) is a cooling water tube that passes at least a portion of the condensate generated in the evaporator (14) and cooling water supplied from the outside, and exchanges heat with the air flowing toward the heat dissipation unit (42) by the blower (910). A flow control valve (not shown) is installed in the cooling water heat exchange tube (920), so that the flow rate of the cooling water passing through the cooling water heat exchange tube (920) can be controlled according to the opening rate of the flow control valve (not shown).

[0135] The above cooling water supply unit (930) includes a cooling water supply channel (931), a cooling water sprayer (932), and a cooling water flow control valve (933). The above cooling water supply unit (930) may use at least a portion of the condensate generated in the evaporator (14) and the cooling water supplied from the outside.

[0136] Referring to FIG. 9, in the ninth embodiment of the present invention, the blower (910), the cooling water heat exchange tube (920), the cooling water supply unit (930), and the heat dissipation unit (42) are described as being arranged sequentially along the direction of air flow. However, this is not limited thereto, and it is also possible for the cooling water supply unit (930) to be located in front of the blower (910).

[0137] As described above, in the ninth embodiment of the present invention, the heat dissipation unit (42) can be cooled by utilizing forced air, cooling water spray, and cooling water heat exchange, so the cooling efficiency of the heat dissipation unit (42) can be further increased. If the cooling efficiency of the heat dissipation unit (42) increases, the load of the evaporator (14) can be reduced.

[0139] FIG. 10 is a cross-sectional view of an internal duct equipped with a heat pipe according to the 10th embodiment of the present invention.

[0140] Referring to FIG. 10, the heat pipe (140) according to the 10th embodiment of the present invention differs from the above embodiments in that the heat absorption part (141) is arranged vertically within the inner duct (30), and the heat dissipation part (142) is exposed to the outside of the inner duct (30) and is arranged vertically in a direction inclined at a set angle (θ) to the right from the heat absorption part (141). Since the remaining configuration and operation are similar to the first embodiment, a detailed description of similar configurations is omitted below, and the explanation focuses on the differences.

[0141] That is, the heat pipe (140) is described as being formed with an upper right bending shape. However, it is not limited to this, and it is also possible for the heat pipe (140) to be formed to bend at least once.

[0142] The heat pipe (140) according to the 10th embodiment of the present invention has the advantage that, since the working fluid filled inside can move inside while vaporizing and condensing without being affected by gravity, the direction of the heat dissipation part (142) can be positioned in a direction that facilitates cooling, for example, in the direction of the airflow.

[0143] The shape of the heat pipe (140) according to the 10th embodiment of the present invention is applicable to all of the 1st to 9th embodiments.

[0145] FIG. 11 is a cross-sectional view of an internal duct equipped with a heat pipe according to the 11th embodiment of the present invention.

[0146] Referring to FIG. 11, the heat pipe (240) according to the 11th embodiment of the present invention differs from the above embodiments in that the heat absorption part (241) is arranged vertically within the inner duct (30), and the heat dissipation part (242) is exposed to the outside of the inner duct (30) and is arranged vertically in a direction inclined to the left from the heat absorption part (241) at a set angle (θ). Since the remaining configuration and operation are similar to the first embodiment, a detailed description of similar configurations is omitted below, and the explanation focuses on the differences.

[0147] That is, the heat pipe (240) is described as being formed with an upper left-bending shape. However, it is not limited thereto, and it is also possible for the heat pipe (240) to be formed to bend at least once.

[0148] The heat pipe (240) according to the present invention has the advantage that, since the working fluid filled inside can move inside while vaporizing and condensing without being affected by gravity, the direction of the heat dissipation part (242) can be positioned in a direction that facilitates cooling, for example, in the direction of the airflow.

[0149] The shape of the heat pipe (240) according to the 11th embodiment of the present invention is applicable to all of the 1st to 9th embodiments.

[0151] FIG. 12 is a cross-sectional view of an internal duct equipped with a heat pipe according to the 12th embodiment of the present invention.

[0152] Referring to FIG. 12, the heat pipe (340) according to the 12th embodiment of the present invention differs from the above embodiments in that the heat absorption part (341) is arranged diagonally within the inner duct (30) and the heat dissipation part (342) is exposed to the outside of the inner duct (30) and arranged diagonally. Since the remaining configuration and operation are similar to the first embodiment, a detailed description of similar configurations is omitted below, and the explanation focuses on the differences.

[0153] That is, the heat pipe (340) is described as having a shape tilted toward the right. However, it is not limited to this, and it is also possible for the heat pipe (340) to be formed to bend at least once.

[0154] The heat pipe (340) according to the present invention has the advantage that, since the working fluid filled inside can move inside while vaporizing and condensing without being affected by gravity, the direction of the heat dissipation part (342) can be positioned in a direction that facilitates cooling, for example, in the direction of the airflow.

[0155] The shape of the heat pipe (340) according to the 12th embodiment of the present invention is applicable to all of the 1st to 9th embodiments.

[0157] FIG. 13 is a cross-sectional view of an internal duct equipped with a heat pipe according to the 13th embodiment of the present invention.

[0158] Referring to FIG. 13, the heat pipe (440) according to the 13th embodiment of the present invention differs from the above embodiments in that the heat absorption part (441) is arranged horizontally in a long manner inside the inner duct (30), and the heat dissipation part (442) is exposed to the outside of the inner duct (30) but is arranged in a long manner inclined at a set angle (θ) from the heat absorption part (441). Since the remaining configuration and operation are similar to the first embodiment, a detailed description of similar configurations is omitted below, and the explanation focuses on the differences.

[0159] That is, the heat pipe (440) is described as having a shape inclined upward to the right. However, it is not limited to this, and it is also possible for the heat pipe (440) to be formed to bend at least once.

[0160] The heat pipe (440) according to the present invention has the advantage that, since the working fluid filled inside can move inside while vaporizing and condensing without being affected by gravity, the direction of the heat dissipation part (442) can be positioned in a direction that facilitates cooling, for example, in the direction of the airflow.

[0161] The shape of the heat pipe (440) according to the 13th embodiment of the present invention is applicable to all of the 1st to 9th embodiments.

[0163] Meanwhile, in the above embodiments, the air conditioning unit was described as including the refrigerator (10) and the electric heater (6). However, it is not limited thereto, and it is also possible to use a heat pump that further includes a four-way valve for switching the refrigerant flow path according to cooling operation and heating operation.

[0165] The present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. Explanation of the symbols

[0166] 1: Main unit 10: Heat pump 11: Compressor 12: Condenser 13: Expansion valve 14: Evaporator 20: High-pressure blower 30: Internal duct 40: Heat pipe 41: Heat end part 42: Heat dissipation unit 100: Blower for heat dissipation unit 200: Condenser blower 300: Cooling water supply unit 301: Evaporator condensate tank 302: Evaporator condensate supply path 303: Condensate sprayer 304: Condensate flow control valve 400: Coolant supply unit 401: External coolant supply path 402: Coolant injector 403: Coolant flow control valve 500: Cooling tank 610: Blower 620: Cooling water supply unit 710: Condenser blower 720: Cooling water supply unit 810: Blower 820: Cooling water heat exchange tube 910: Blower 920: Cooling water heat exchange tube 930: Cooling water supply section

Claims

Claim 1 An aircraft cooling and heating supply device installed at an airport apron and supplying air for cooling or heating to the cabin of an aircraft through a high-pressure hose, comprising: an air conditioning device installed inside a main body and including a compressor, a condenser, an expansion valve, and an evaporator; a high-pressure blower installed inside the main body and sucking in outside air at high pressure; an internal duct installed inside the main body and guiding the air sucked in through the high-pressure blower to pass through the evaporator and be discharged through the high-pressure hose; a heat pipe comprising a heat absorption section disposed inside the internal duct that absorbs heat from the air sucked in through the high-pressure blower and vaporizes the internal working fluid, and a heat dissipation section that communicates with the heat absorption section and is disposed outside the internal duct to release heat from the working fluid transferred from the heat absorption section to the outside to cool the working fluid; and a heat pipe cooling means for cooling the heat dissipation section among the heat pipes. Claim 2 An aircraft heating and cooling supply device using a heat pipe according to claim 1, wherein the heat pipe cooling means comprises a blower for a heat dissipation unit that blows outside air to the heat dissipation unit to cool the heat dissipation unit. Claim 3 An aircraft heating and cooling supply device using a heat pipe according to claim 1, wherein the heat pipe cooling means comprises a condenser blower disposed in an air passage between the heat dissipation part and the condenser, and cooling the heat dissipation part by air sucked into the condenser. Claim 4 An aircraft heating and cooling supply device using a heat pipe according to any one of claims 1 to 3, wherein the heat pipe cooling means further comprises a cooling water supply unit that cools the heat dissipation unit using at least a portion of the condensate generated in the evaporator and cooling water supplied from the outside. Claim 5 In claim 4, the cooling water supply unit further comprises an evaporator condensate supply path for guiding condensate generated in the evaporator to the heat dissipation unit, a condensate sprayer connected to the evaporator condensate supply path for spraying condensate supplied from the evaporator condensate supply path toward the heat dissipation unit, and a condensate flow control valve installed in the evaporator condensate supply path for controlling the flow rate of condensate sprayed through the condensate sprayer. Claim 6 An aircraft heating and cooling supply device using a heat pipe according to claim 5, further comprising a control unit that controls the opening rate of the condensate flow control valve according to at least one of the temperature of the outside air and the temperature of the air discharged through the high-pressure hose. Claim 7 A heating and cooling supply device for an aircraft using a heat pipe according to claim 4, wherein the cooling water supply unit comprises an external cooling water supply channel for supplying cooling water supplied from the outside to the heat dissipation unit, a cooling water injector connected to the external cooling water supply channel for spraying cooling water supplied from the external cooling water supply channel toward the heat dissipation unit, and a cooling water flow control valve installed in the external cooling water supply channel for controlling the flow rate of cooling water sprayed through the cooling water injector. Claim 8 An aircraft heating and cooling supply device using a heat pipe according to claim 7, further comprising a control unit that controls the opening rate of the cooling water flow control valve according to at least one of the temperature of the outside air and the temperature of the air discharged through the high-pressure hose. Claim 9 A heating and cooling supply device for an aircraft using a heat pipe according to claim 1, wherein the heat pipe cooling means further comprises a blower that blows air to the heat dissipation part to cool the heat dissipation part, and a cooling water heat exchange tube that passes at least a portion of the condensate generated in the evaporator and cooling water supplied from the outside through it to exchange heat with the air flowing to the heat dissipation part. Claim 10 An aircraft heating and cooling supply device using a heat pipe according to any one of claims 1 to 3, wherein the cooling water supply unit comprises a cooling water tank formed such that at least a portion of the condensate generated in the evaporator and the cooling water supplied from the outside is stored and the heat dissipation unit is immersed therein. Claim 11 An aircraft heating and cooling supply device using a heat pipe according to claim 1, wherein the heat pipe is formed such that the heat absorption portion is arranged vertically within the inner duct and the heat dissipation portion is arranged vertically outside the inner duct. Claim 12 An aircraft heating and cooling supply device using a heat pipe according to claim 1, wherein the heat pipe is formed such that the heat absorption portion is arranged vertically within the inner duct, and the heat dissipation portion is arranged externally to the inner duct but is arranged vertically in a direction inclined at a set angle from the heat absorption portion. Claim 13 An aircraft heating and cooling supply device using a heat pipe according to claim 1, wherein the heat pipe is formed such that the heat absorption portion is arranged diagonally within the inner duct and the heat dissipation portion is arranged diagonally outside the inner duct. Claim 14 An aircraft heating and cooling supply device using a heat pipe according to claim 1, wherein the heat pipe is formed such that the heat absorption portion is arranged horizontally in a long manner inside the inner duct, and the heat dissipation portion is arranged outside the inner duct but is arranged in a long manner inclined at a set angle from the heat absorption portion. Claim 15 The air conditioning device according to claim 1 comprises a refrigeration unit that performs a refrigerant cycle in which a refrigerant circulates through the compressor, the condenser, the expansion valve, and the evaporator during cooling operation, and an electric heater that heats air sucked in through the high-pressure blower during heating operation, a cooling and heating supply device for an aircraft using a heat pipe. Claim 16 The air conditioning device of claim 1 further comprises a heat pump including a four-way valve in which the refrigerant flow path is switched according to cooling operation and heating operation, a cooling and heating supply device for an aircraft using a heat pipe. Claim 17 An aircraft cooling and heating supply device installed at an airport apron and supplying air for cooling or heating to the cabin of an aircraft through a high-pressure hose, comprising: an air conditioning device installed inside a main body and including a compressor, a condenser, an expansion valve, and an evaporator; a high-pressure blower installed inside the main body and sucking in outside air at high pressure; an internal duct installed inside the main body and guiding the air sucked in through the high-pressure blower to pass through the evaporator and be discharged through the high-pressure hose; a heat pipe comprising a heat absorption section disposed inside the internal duct that absorbs heat from the air sucked in through the high-pressure blower and vaporizes the internal working fluid, and a heat dissipation section disposed outside the internal duct and communicating with the heat absorption section to release the heat of the working fluid transferred from the heat absorption section to the outside to cool the working fluid; a blower that blows air to the heat dissipation section to cool the heat dissipation section; a cooling water sprayer that sprays cooling water onto the heat dissipation section to cool the heat dissipation section; and, depending on at least one of the temperature of the outside air and the temperature of the air discharged through the high-pressure hose, the An aircraft heating and cooling supply device using a heat pipe, comprising a control unit that selectively operates at least one of a blower and a cooling water injector. Claim 18 An aircraft cooling and heating supply device installed at an airport apron and supplying air for cooling or heating to the cabin of an aircraft through a high-pressure hose, comprising: an air conditioning unit installed inside a main body and including a compressor, a condenser, an expansion valve, and an evaporator; a high-pressure blower installed inside the main body and sucking in outside air at high pressure; an internal duct installed inside the main body and guiding the air sucked in through the high-pressure blower to pass through the evaporator and be discharged through the high-pressure hose; a heat pipe comprising a heat absorption section disposed inside the internal duct that absorbs the heat of the air sucked in through the high-pressure blower and vaporizes the internal working fluid, and a heat dissipation section disposed outside the internal duct and communicating with the heat absorption section to release the heat of the working fluid transferred from the heat absorption section to the outside to cool the working fluid; a blower that blows air to the heat dissipation section to cool the heat dissipation section; a cooling water sprayer that sprays cooling water onto the heat dissipation section to cool the heat dissipation section; and at least a portion of the condensate generated in the evaporator and the cooling water supplied from the outside to pass through the An aircraft heating and cooling supply device using a heat pipe, comprising: a cooling water heat exchange tube that exchanges heat with air flowing to a heat dissipation section; and a control unit that selectively operates at least one of the blower, the cooling water injector, and the cooling water heat exchange tube according to at least one of the outside air temperature, the temperature of the condensate, and the temperature of the air discharged through the high-pressure hose.

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