Temperature treatment device for aircraft galley

Abstract

The utility model discloses a temperature treatment device for an aircraft kitchen, relates to the technical field of aircraft kitchen temperature treatment, and aims to solve the problem that an existing aircraft cabin door is frozen in high and cold weather. The temperature processing device for the aircraft kitchen comprises a refrigerant circulation loop and a first air pipeline, a port A and a port C of a four-way valve of the refrigerant circulation loop are connected with an air suction port and an exhaust port of a compressor correspondingly, and a first heat exchanger comprises a first refrigerant flow channel and a first gas flow channel; the two ends of the first refrigerant flow channel communicate with a D port of the four-way valve and the first end of the throttling device correspondingly, and the two ends of the second heat exchanger are connected with the second end of the throttling device and a B port of the four-way valve correspondingly. The first air pipeline is provided with an air inlet port and an air outlet port, the first air flow channel is connected to the first air pipeline in series, the air inlet port is used for communicating with a passenger cabin of an airplane, and the air outlet port is used for communicating with a cabin door area of the airplane.

Description

Technical Field

[0001] The present application relates to the technical field related to temperature treatment in aircraft galleys, and in particular to a temperature treatment device for aircraft galleys. Background Art

[0002] With the rapid development of aircraft technology and the economic recovery of the domestic civil aviation industry, passengers have higher and higher demands for the quality of cabin services. For long-range wide-body aircraft, high-quality catering services need to be provided to passengers during long-term high-altitude flights. Traditional dry ice refrigeration is far from enough to meet the demand. The current cooling air circuit refrigeration greatly increases the energy consumption due to the additional compression refrigerator, and also generates a large amount of heat energy dissipation.

[0003] Moreover, in some northern airports or in cold weather, the temperature at the cabin door is low and there is even a risk of freezing. The onboard kitchen is installed close to the cabin door, and the flight attendants spend the longest time in the onboard kitchen space, which not only affects the comfort of the flight attendants and nearby passengers, but may even cause the flight to be delayed due to the freezing of the cabin door. Utility Model Content

[0004] The present application provides a temperature processing device for an aircraft kitchen, which can solve the problem that the existing aircraft cabin door may freeze in severe cold weather, thereby affecting the comfort of crew members and passengers.

[0005] To achieve the above-mentioned purpose, the temperature processing device for an aircraft kitchen provided in the present application comprises:

[0006] A refrigerant circulation circuit, comprising a compressor, a four-way valve, a first heat exchanger, a throttling device and a second heat exchanger, wherein the A port and the C port of the four-way valve are respectively connected to the air intake port and the air discharge port of the compressor, the first heat exchanger comprises a first refrigerant flow channel and a first gas flow channel, the two ends of the first refrigerant flow channel are respectively connected to the D port of the four-way valve and the first end of the throttling device, and the two ends of the second heat exchanger are respectively connected to the second end of the throttling device and the B port of the four-way valve;

[0007] The first air pipeline has an air inlet port and an exhaust port. The first gas flow channel is connected in series to the first air pipeline to heat the air in the first air pipeline. The air inlet port is used to communicate with the cabin of the aircraft, and the exhaust port is used to communicate with the door area of ​​the aircraft.

[0008] In some embodiments of the present application, the temperature processing device for an aircraft kitchen further includes:

[0009] a water supply pipeline, comprising a water inlet port and a water supply port, wherein the water inlet port is connected to a water supply system of the aircraft, and the water supply port is used to supply water to the kitchen of the aircraft;

[0010] Among them, the first heat exchanger also includes a first liquid flow channel, which is connected in series to the water supply pipeline and heats the water in the water supply pipeline. The liquid flow direction in the first liquid flow channel is the same as the gas flow direction in the first gas flow channel, and both are opposite to the refrigerant flow direction in the first refrigerant flow channel.

[0011] In some embodiments of the present application, the temperature processing device for an aircraft kitchen further includes:

[0012] The first control valve is arranged on the first air pipeline and can control the opening and closing of the first air pipeline.

[0013] In some embodiments of the present application, the temperature processing device for an aircraft kitchen further includes:

[0014] The second control valve is arranged on the water supply pipeline and can control the on-off of the water supply pipeline.

[0015] In some embodiments of the present application, the second control valve is disposed in the water supply pipeline and is located between the first liquid flow channel and the water inlet port.

[0016] In some embodiments of the present application, the temperature processing device for an aircraft kitchen further includes:

[0017] A first control valve, provided on the first air pipeline, capable of controlling the on and off of the first air pipeline;

[0018] The controller is electrically connected to the four-way valve, the first control valve and the second control valve, and controls the opening and closing of the first control valve and the second control valve according to the power-on state of the four-way valve.

[0019] In some embodiments of the present application, the temperature processing device for an aircraft kitchen further includes:

[0020] a second air line having a first port and a second port, wherein the first port and the second port are both in communication with a dining cart storage area of ​​a galley of the aircraft;

[0021] The second heat exchanger includes a second refrigerant flow channel and a second gas flow channel, and the second gas flow channel is connected in series to the second air pipeline to adjust the air temperature in the second air pipeline.

[0022] In some embodiments of the present application, the temperature processing device for an aircraft kitchen further includes:

[0023] An air branch pipe, wherein a first end of the air branch pipe is connected to the second air pipeline, and a second end of the air branch pipe is used to communicate with the cabin door area.

[0024] In some embodiments of the present application, the temperature processing device for an aircraft kitchen further includes:

[0025] The third control valve is arranged on the air branch pipe and can control the on and off of the air branch pipe.

[0026] In some embodiments of the present application, the temperature processing device for an aircraft kitchen further includes:

[0027] The controller is electrically connected to the four-way valve and the third control valve, and controls the switch of the third control valve according to the power-on state of the four-way valve.

[0028] In this technical solution, the four-way valve is not energized, and the four-way valve is in a state where port A is connected to port D, and port B is connected to port C. The refrigerant is compressed by the compressor and converted into a high-temperature and high-pressure gas. It enters through port A of the four-way valve and is discharged from port D and enters the first heat exchanger. The refrigerant absorbs cold and releases heat in the first heat exchanger and becomes a medium-temperature and high-pressure liquid. It is throttled and expanded by the throttling device and becomes a low-temperature and low-pressure liquid. It absorbs heat and releases cold in the second heat exchanger and becomes a low-temperature and low-pressure gas. It enters through port B of the four-way valve and returns to the compressor from port C, forming a refrigerant circulation loop. Among them, the high-temperature and high-pressure gaseous cooler in the first refrigerant flow channel of the first heat exchanger will exchange heat with the air in the first gas flow channel, and after absorbing cold and releasing heat, it will become a medium-temperature and high-pressure liquid. The air from the cabin will be heated and turned into hot air when flowing through the first gas flow channel connected in series with the first air pipeline. The hot air is discharged to the door area of ​​the aircraft through the exhaust port of the first air pipeline to heat the door, thereby improving the ambient temperature of the door area, improving the comfort of crew members and passengers, and reducing the risk of door freezing in cold weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 is a schematic structural diagram of the temperature processing device in the embodiment of the present application when it is in a cooling mode;

[0031] Figure 2 is a schematic structural diagram of the temperature processing device in the embodiment of the present application when it is in a heating mode;

[0032] Figure 3 It is a schematic diagram of the installation structure of the temperature treatment device in the embodiment of the present application.

[0033] The main reference numerals in the drawings of this application specification are described as follows:

[0034] 1-Compressor;

[0035] 2- Four-way valve;

[0036] 3- first heat exchanger;

[0037] 4-Throttling device;

[0038] 5- Second heat exchanger;

[0039] 6-first air pipeline; 61-intake port; 62-exhaust port;

[0040] 7- water supply pipeline; 71- water inlet port; 72- water supply port;

[0041] 8- first control valve;

[0042] 9- Second control valve;

[0043] 10- Controller;

[0044] 11- second air pipeline; 111- first port; 112- second port;

[0045] 12-air branch pipe;

[0046] 13- third control valve;

[0047] 100 - hatch area;

[0048] 200-Kitchen dining cart storage area. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0050] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0052] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] The present application provides a temperature processing device for an aircraft kitchen, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0054] Reference Figure 1 , the temperature treatment device for an aircraft kitchen provided in the present application includes a refrigerant circulation circuit and a first air pipeline 6. The refrigerant circulation circuit includes a compressor 1, a four-way valve 2, a first heat exchanger 3, a throttling device 4 and a second heat exchanger 5. The A port and the C port of the four-way valve 2 are respectively connected to the air intake port and the exhaust port of the compressor 1. The first heat exchanger 3 includes a first refrigerant flow channel and a first gas flow channel. The two ends of the first refrigerant flow channel are respectively connected to the D port of the four-way valve 2 and the first end of the throttling device 4. The two ends of the second heat exchanger 5 are respectively connected to the second end of the throttling device 4 and the B port of the four-way valve 2. The first air pipeline 6 has an air intake port 61 and an exhaust port 62. The first gas flow channel is connected in series to the first air pipeline 6 to heat the air in the first air pipeline 6. The air intake port 61 is used to communicate with the cabin of the aircraft, and the exhaust port 62 is used to communicate with the door area 100 of the aircraft. By way of example, Figure 1 The solid arrows in the figure are used to indicate the flow rate of the refrigerant, and the hollow arrows in the first air pipeline 6 are used to indicate the flow direction of the air.

[0055] In this technical solution, when the temperature processing device for the aircraft kitchen is in the cooling mode, the four-way valve is not energized, the four-way valve is in the state of AD connected and BC connected, the refrigerant is compressed by the compressor 1 and converted into a high-temperature and high-pressure gas, enters through the A port of the four-way valve and is discharged from the D port and enters the first heat exchanger 3, the refrigerant absorbs cold and releases heat in the first heat exchanger 3 and becomes a medium-temperature and high-pressure liquid, is throttled and expanded by the throttling device 4 and becomes a low-temperature and low-pressure liquid, is converted into a low-temperature and low-pressure gas by the second heat exchanger 5 after absorbing heat and releasing cold, enters through the B port of the four-way valve and returns to the compressor 1 from the C port, forming a refrigerant circulation loop. Among them, the high-temperature and high-pressure gaseous refrigerant in the first refrigerant flow channel of the first heat exchanger 3 will exchange heat with the air in the first gas flow channel, and after absorbing cold and releasing heat, it will become a medium-temperature and high-pressure liquid. The air from the cabin will be heated and turned into hot air when flowing through the first gas flow channel connected in series with the first air pipeline 6. The hot air is discharged to the aircraft's cabin door area 100 through the exhaust port 62 of the first air pipeline 6 to heat the cabin door, thereby improving the ambient temperature of the cabin door area 100, improving the comfort of crew members and passengers, and reducing the risk of cabin door freezing in cold weather.

[0056] Based on the above embodiment, the temperature treatment device for the aircraft kitchen further includes a water supply pipeline 7. The water supply pipeline 7 has a water inlet port 71 and a water supply port 72. The water inlet port 71 is connected to the water supply system of the aircraft, and the water supply port 72 is used to supply water to the aircraft kitchen. The first heat exchanger 3 further includes a first liquid flow channel, which is connected in series to the water supply pipeline 7 and heats the water in the water supply pipeline 7, thereby preheating the drinking water supplied to the kitchen, so that the preheating recovery and reuse is more sufficient, which is conducive to improving the economy of the temperature treatment device for the aircraft kitchen.

[0057] In order to improve the heat exchange efficiency between the first liquid flow channel, the first gas flow channel and the first refrigerant flow channel which are not connected to each other in the first heat exchanger 3, the liquid flow direction in the first heat exchanger 3 is the same as the gas flow direction in the first gas flow channel, and both are opposite to the refrigerant flow direction in the first refrigerant flow channel.

[0058] Continue to refer to Figure 1, the temperature processing device for the aircraft kitchen also includes a first control valve 8, which is provided on the first air pipeline 6 and can control the on-off of the first air pipeline 6. In other embodiments, the temperature processing device for the aircraft kitchen also includes a second control valve 9, which is provided on the water supply pipeline 7 and can control the on-off of the water supply pipeline 7. In other embodiments, the temperature processing device for the aircraft kitchen also includes a first control valve 8 and a second control valve 9, the first control valve 8 is provided on the first air pipeline 6 and can control the on-off of the first air pipeline 6; the second control valve 9 is provided on the water supply pipeline 7 and can control the on-off of the water supply pipeline 7. Among them, the above-mentioned setting can realize the on-off or on-off of the first air pipeline 6 and the water supply pipeline 7 as needed, so that it is more matched with the refrigerant state in the refrigerant circulation circuit.

[0059] For example, Figure 2 As shown, when the temperature treatment device for aircraft kitchen is in heating mode, the four-way valve 2 is energized to connect the A port and the B port, and the C port and the D port, the refrigerant is compressed by the compressor 1 and converted into high-temperature and high-pressure gas, enters through the A port of the four-way valve 2 and is discharged from the B port and enters the second heat exchanger 5, absorbs cold and releases heat in the second heat exchanger 5 and becomes medium-temperature and high-pressure liquid, and becomes low-temperature and low-pressure liquid after throttling and expansion by the throttling device 4, and becomes low-temperature and low-pressure gas after absorbing heat and releasing cold by the first heat exchanger 3, and then enters through the D port of the four-way valve 2 and returns to the compressor 1 through the C port, and then continues to circulate. Therefore, when the temperature treatment device for aircraft kitchen is in heating mode, the first air pipeline 6 and / or the water supply pipeline 7 cannot realize the preheating function, and the first air pipeline 6 and / or the water supply pipeline 7 need to be disconnected by closing the first control valve 8 and / or the second control valve 9.

[0060] Based on the above embodiment, the temperature processing device for the aircraft kitchen further includes a controller 10, which is electrically connected to the four-way valve 2, the first control valve 8 and the second control valve 9, and controls the opening and closing of the first control valve 8 and the second control valve 9 according to the power-on state of the four-way valve 2. In specific use, for example, when the four-way valve 2 is in the power-off state, the first control valve 8 and / or the second control valve 9 are controlled to be opened, and when the four-way valve 2 is in the power-on state, the first control valve 8 and / or the second control valve 9 are controlled to be closed.

[0061] Please continue to refer to Figure 1The temperature processing device for the aircraft kitchen further includes a second air pipeline 11, the second air pipeline 11 has a first port 111 and a second port 112, the first port 111 and the second port 112 are both connected to the aircraft kitchen dining car storage area 200. The second heat exchanger 5 includes a second refrigerant flow channel and a second gas flow channel, the second gas flow channel is connected in series to the second air pipeline 11 to adjust the air temperature in the second air pipeline 11.

[0062] Specifically, when the temperature processing device for the aircraft kitchen is in the cooling mode, the second refrigerant flow channel of the second heat exchanger 5 is filled with low-temperature and low-pressure refrigerant. At this time, the hot air from the kitchen dining cart storage area 200 enters through the second port 112. The refrigerant evaporates in the second heat exchanger 5 and absorbs the heat of the hot air from the kitchen dining cart storage area 200, converting the hot air from the kitchen dining cart storage area 200 into cold air and supplying it to the kitchen dining cart storage area 200 through the first port 111 for cooling the dining cart. Figure 1 shown.

[0063] When the temperature processing device for an aircraft kitchen is in a heating mode, a high-temperature and high-pressure refrigerant flows through the second refrigerant flow channel of the second heat exchanger 5. At this time, cold air from the kitchen dining cart storage area 200 enters through the first port 111, and exchanges heat with the refrigerant in the second heat exchanger 5, so that the cold air from the kitchen dining cart storage area 200 is heated to hot air, which is supplied to the kitchen dining cart storage area 200 through the second port 112 for heating the dining cart. Figure 2 shown.

[0064] In summary, the present application can achieve heating or cooling of the kitchen dining cart storage area 200 by changing the flow direction of the refrigerant, thereby meeting the insulation requirements of the dining cart on the aircraft. At the same time, cooling or heating the kitchen dining cart storage area 200 is achieved by air circulation, which can ensure that the dining cart is heated more evenly. In addition, when the low-temperature and low-pressure refrigerator flows through the second heat exchanger 5, frost will occur on its surface. By changing the connection state of the four-way valve 2, the high-temperature and high-pressure refrigerant discharged from the compressor 1 passes through the four-way valve 2 and directly enters the second heat exchanger 5. The high-temperature and high-pressure refrigerant will increase the temperature of the second heat exchanger 5, and then the second heat exchanger 5 can be defrosted.

[0065] The temperature processing device for the aircraft kitchen further includes an air branch pipe 12, a first end of the air branch pipe 12 is connected to the second air pipeline 11, and a second end of the air branch pipe 12 is used to communicate with the cabin door area 100, so that the cabin door can be heated through the air branch pipe 12 or the first air pipeline 6 to prevent the cabin door from freezing. Specifically, when the temperature processing device for the aircraft kitchen is in the cooling mode, the cabin door can be heated through the first air pipeline 6. When the temperature processing device for the aircraft kitchen is in the heating mode, the cabin door can be heated through the air branch pipe 12.

[0066] Based on the above embodiment, the temperature processing device for an aircraft kitchen further includes a third control valve 13. The third control valve 13 is arranged on the air branch pipe 12 and can control the on-off of the air branch pipe 12, so that the air branch pipe 12 is automatically closed in the cooling mode and automatically opened in the heating mode.

[0067] The controller 10 is electrically connected to the four-way valve 2 and the third control valve 13, and can control the opening and closing of the third control valve 13 according to the power-on state of the four-way valve 2. For example, when the temperature processing device for the aircraft galley is in the cooling mode, the third control valve 13 is closed, and when the temperature processing device for the aircraft galley is in the heating mode, the third control valve 13 is opened.

[0068] For example, the first control valve 8, the second control valve 9 and the third control valve 13 can all be solenoid valves, which are electrically connected to the controller 10 to realize the automatic control of the system. Of course, the first control valve 8, the second control valve 9 and the third control valve 13 can also be manual valves, and the switching between different working modes can be realized by manual control of the driver.

[0069] Reference Figure 3 During specific installation, the air inlet port 61 of the first air pipeline 6 and the water inlet port 71 of the water supply pipeline 7 in the temperature processing device of the aircraft kitchen of the present application are located on the first side of the temperature processing device, the exhaust port 62 of the first air pipeline 6 and the water supply port 72 of the water supply pipeline 7 are located on the second side of the temperature processing device, and the first port 111 and the second port 112 of the second air pipeline 11 are located on the third side of the temperature processing device, and are both connected to the kitchen dining cart storage area 200. The first side and the second side are arranged opposite to each other, and the third side is connected between the first side and the second side.

[0070] In some embodiments of the present application, the throttling device 4 is an electronic expansion valve or a capillary tube.

[0071] In summary, the specific working process of the temperature treatment device of the aircraft kitchen of the present application is as follows:

[0072] 1. In the refrigeration mode of the temperature treatment device in the aircraft kitchen:

[0073] The low-temperature and low-pressure gas refrigerant passes through the four-way valve 2 and the compressor 1 to generate high-temperature and high-pressure gas and enter the first heat exchanger 3. The drinking water to be heated from the drinking water supply system flows through the first heat exchanger 3 in the water supply pipeline 7, and the air from the cabin flows through the first heat exchanger 3 through the first air pipeline 6. In the first heat exchanger 3, the water and the air exchange heat with the refrigerant in the first heat exchanger 3 respectively, and the high-temperature and high-pressure gas refrigerant generates medium-temperature and high-pressure liquid refrigerant. The drinking water to be heated generates preheated drinking water and is supplied to the kitchen through the water supply pipeline 7. The air from the cabin generates high-temperature gas and flows through the first air pipeline 6 to be supplied to the cabin door for heating.

[0074] Subsequently, the medium-temperature and high-pressure liquid refrigerant passes through the throttling device 4 to generate a low-temperature and low-pressure refrigerant, and enters the second heat exchanger 5. The hot air in the kitchen and dining cart storage area 200 enters the second heat exchanger 5 from the second port 112 of the second air pipeline 11 in the dining cart area. In the second heat exchanger 5, the refrigerant evaporates and absorbs the heat of the kitchen and dining cart storage area 200, cools the hot air in the kitchen and dining cart storage area 200 into cold air, and supplies the dining cart with cooling through the first port 111 of the second air pipeline 11 in the dining cart storage area 200.

[0075] 2. In the heating mode of the temperature treatment device in the aircraft kitchen:

[0076] The controller 10 controls the first control valve 8 to close, the second control valve 9 to close, the fan of the second heat exchanger 5 to reverse, the four-way valve 2 to switch, and the third control valve 13 to open. The refrigerant passes through the four-way valve 2 and the compressor 1 to generate high-temperature and high-pressure gas and enter the second heat exchanger 5. At the same time, the cold air in the kitchen dining car storage area 200 enters the second heat exchanger 5 from the first port 111 of the second air pipeline 11 of the kitchen dining car storage area 200. The high-temperature and high-pressure gas refrigerant enters the second heat exchanger 5. On the one hand, it can melt the frost on the outer surface of the second heat exchanger 5. On the other hand, in the second heat exchanger 5, the high-temperature and high-pressure gas refrigerant exchanges heat with the cold air in the kitchen dining car storage area 200, and the high-temperature and high-pressure gas refrigerant generates medium-temperature and high-pressure liquid refrigerant, and the cold air in the kitchen dining car storage area 200 is heated to hot air. A part of the hot air is supplied to the dining car for heating and insulation through the second port 112 of the second air pipeline 11, and the other part is supplied to the cabin door for heating through the air branch pipe 12.

[0077] The present application has at least the following beneficial effects: through the transmission pipeline design, the device has the function of heating the cabin door, which improves the comfort of the crew and nearby passengers, reduces the risk of cabin door freezing, thereby reducing the risk of flight delays and increasing revenue. At the same time, it has the effect of fully utilizing waste heat and improving energy utilization; through the four-way valve 2 and the throttling device 4 that allows two-way flow, the device has the function of switching between cooling and heat preservation. Compared with the technical solution of electric oven heating, the above technical solution of the present application has low energy consumption, large capacity and improved efficiency.

[0078] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0079] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims. In addition, the specification uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and its core idea of ​​the present application. The content of this specification should not be understood as a limitation on the present application.

Claims

1. A temperature processing device for an aircraft kitchen, characterized in that: include: A refrigerant circulation circuit comprises a compressor (1), a four-way valve (2), a first heat exchanger (3), a throttling device (4) and a second heat exchanger (5), wherein the A port and the C port of the four-way valve (2) are respectively connected to the air intake port and the air discharge port of the compressor (1), the first heat exchanger (3) comprises a first refrigerant flow channel and a first gas flow channel, the two ends of the first refrigerant flow channel are respectively connected to the D port of the four-way valve (2) and the first end of the throttling device (4), and the two ends of the second heat exchanger (5) are respectively connected to the second end of the throttling device (4) and the B port of the four-way valve (2); The first air pipeline (6) has an air inlet port (61) and an exhaust port (62); the first gas flow channel is connected in series to the first air pipeline (6) to heat the air in the first air pipeline (6); the air inlet port (61) is used to communicate with the cabin of an aircraft, and the exhaust port (62) is used to communicate with a door area (100) of the aircraft.

2. The temperature processing device for an aircraft galley according to claim 1, characterized in that: Also includes: A water supply pipeline (7) having a water inlet port (71) and a water supply port (72), wherein the water inlet port (71) is connected to the water supply system of the aircraft, and the water supply port (72) is used to supply water to the kitchen of the aircraft; The first heat exchanger (3) further comprises a first liquid flow channel, the first liquid flow channel is connected in series to the water supply pipeline (7) and heats water in the water supply pipeline (7), the liquid flow direction in the first liquid flow channel is the same as the gas flow direction in the first gas flow channel, and both are opposite to the refrigerant flow direction in the first refrigerant flow channel.

3. The temperature processing device for an aircraft galley according to claim 2, characterized in that: Also includes: The first control valve (8) is arranged on the first air pipeline (6) and is capable of controlling the opening and closing of the first air pipeline (6).

4. The temperature processing device for an aircraft galley according to claim 2 or 3, characterized in that: Also includes: The second control valve (9) is arranged on the water supply pipeline (7) and can control the on and off of the water supply pipeline (7).

5. The temperature processing device for an aircraft galley according to claim 4, characterized in that: The second control valve (9) is arranged in the water supply pipeline (7) and is located between the first liquid flow channel and the water inlet port (71).

6. The temperature processing device for an aircraft galley according to claim 4, characterized in that: Also includes: A first control valve (8), provided on the first air pipeline (6), capable of controlling the on and off of the first air pipeline (6); A controller (10) is electrically connected to the four-way valve (2), the first control valve (8) and the second control valve (9), and controls the opening and closing of the first control valve (8) and the second control valve (9) according to the power-on state of the four-way valve (2).

7. The temperature processing device for an aircraft galley according to claim 1, characterized in that: Also includes: A second air pipeline (11) having a first port (111) and a second port (112), wherein the first port (111) and the second port (112) are both connected to a kitchen dining cart storage area (200) of the aircraft; The second heat exchanger (5) comprises a second refrigerant flow channel and a second gas flow channel, and the second gas flow channel is connected in series to the second air pipeline (11) to adjust the air temperature in the second air pipeline (11).

8. The temperature processing device for an aircraft galley according to claim 7, characterized in that: Also includes: An air branch pipe (12), wherein a first end of the air branch pipe (12) is connected to the second air pipeline (11), and a second end of the air branch pipe (12) is used to communicate with the cabin door area (100).

9. The temperature processing device for an aircraft galley according to claim 8, characterized in that: Also includes: The third control valve (13) is arranged on the air branch pipe (12) and can control the on and off of the air branch pipe (12).

10. The temperature processing device for an aircraft galley according to claim 9, characterized in that: Also includes: The controller (10) is electrically connected to the four-way valve (2) and the third control valve (13), and controls the opening and closing of the third control valve (13) according to the power-on state of the four-way valve (2).

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