Air conditioning system suitable for ultrahigh-speed maglev train and ultrahigh-speed maglev train

Abstract

The invention relates to the technical field of train air conditioners, and discloses an air conditioning system suitable for an ultra-high-speed maglev train and the ultra-high-speed maglev train. The system comprises an indoor unit, an outdoor unit, a cavity and a static pressure cavity channel, the indoor unit is arranged in a passenger cabin area of a train, a fresh air hole of the indoor unit is communicated with a fresh air opening of a train body structure of the train, the outdoor unit is arranged in a train tail area equipment room of the train, and an opening of the outdoor unit is communicated with an opening of the train body structure of the train. The cavity is defined by an interior trim boundary line at the top of the passenger cabin area, a vehicle body structure boundary line and the partition plates, one end of the cavity is connected with an air outlet of the indoor unit, and the other end of the cavity and an interior trim grid air outlet form the static pressure cavity channel. According to the air conditioning system, the back pressure of the draught fan is small, the noise level of the draught fan and the air duct is low, and good quietness in a cabin can be obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of train air conditioning, and in particular to an air conditioning system suitable for an ultra-high-speed maglev train and an ultra-high-speed maglev train. Background Art

[0002] The maglev train is a train that is propelled by magnetic levitation. It uses electromagnetic force to achieve non-contact suspension and guidance between the train and the track, and uses the electromagnetic force generated by the linear motor to pull the train. Compared with traditional rail trains, the train runs at ultra-high speeds. Considering the running resistance, the top section of the car body is designed to be approximately circular. Compared with traditional rail trains, the train runs on magnetic levitation and has low running noise. Therefore, the layout design of the air conditioning system is required to not only adapt to the circular cross-section car body structure of the train, but also have low running noise.

[0003] The air conditioning system of existing rail trains generally adopts a roof-mounted unit air conditioning unit. After the air inside and outside the train is mixed and processed, the gas is transported to various places in the passenger compartment through the air supply duct. However, the existing air conditioning system has a large through air supply duct on the roof (for the convenience of processing and design, the shape of the duct is generally approximately rectangular), which occupies a large space on the roof, is noisy, and is not conducive to weight reduction of the whole vehicle. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an air conditioning system suitable for an ultra-high-speed maglev train and an ultra-high-speed maglev train, which can solve the problems in the above-mentioned prior art.

[0005] The technical solution of the present invention is: an air-conditioning system suitable for an ultra-high-speed maglev train, wherein the system includes an indoor unit, an outdoor unit, a cavity and a static pressure cavity channel, the indoor unit is arranged in the passenger cabin area of ​​the train and the fresh air hole of the indoor unit is connected to the fresh air inlet of the body structure of the train, the outdoor unit is arranged in the equipment room of the rear area of ​​the train and the opening of the outdoor unit is connected to the opening of the body structure of the train, the interior boundary line at the top of the passenger cabin area, the body structure boundary line and a plurality of partition plates surround the cavity, one end of the cavity is connected to the air outlet of the indoor unit, and the other end is connected to the interior grille air outlet to form the static pressure cavity channel.

[0006] Preferably, the outdoor unit comprises a compressor, a condenser, a condensing fan and a control unit, and the control unit is used to control the operation of the compressor, the condenser and the condensing fan.

[0007] Preferably, the indoor unit includes an indoor unit structural body, an air supply fan, an indoor heat exchanger, an expansion valve, an air outlet, a bottom return air outlet and a fresh air hole. The air supply fan and the indoor heat exchanger are arranged in the indoor unit structural body, the air outlet is arranged on both sides of the indoor unit structural body, the bottom return air outlet is arranged at the bottom of the indoor unit structural body, and the fresh air hole is arranged at the top of the indoor unit structural body. The indoor unit is connected with the outdoor unit through a refrigerant pipeline, and the expansion valve is arranged between the refrigerant pipeline and the indoor unit structural body. The refrigerant circulates through the refrigerant pipeline in phase change between the indoor unit and the outdoor unit. Under the throttling action of the expansion valve, the refrigeration function is realized through the indoor heat exchanger.

[0008] Preferably, the indoor unit is arranged at the top of the cabin area, and the cavity is distributed on both sides of the indoor unit.

[0009] Preferably, the multiple partition plates include a first partition plate, a second partition plate, a third partition plate and a fourth partition plate, the second partition plate and the third partition plate are located between the bottom of the indoor unit and the interior boundary line, and the first partition plate and the fourth partition plate are located between the vehicle body structure boundary line and the interior boundary line at the lower part of the interior grille air outlet.

[0010] The present invention also provides an ultra-high-speed maglev train, wherein the train comprises the above-mentioned air-conditioning system.

[0011] Preferably, the cross-section of the train top is circular or approximately circular.

[0012] Preferably, a hidden grille is provided on the fresh air outlet of the vehicle body structure, and an air volume valve is provided on the hidden grille, and the air volume valve is used to adjust the opening and closing of the fresh air and the air volume.

[0013] Through the above technical solution, the interior boundary line on the roof of the train cabin area, the boundary line of the body structure, and several partitions of the body form a cavity. One end of the cavity is connected to the air outlet of the indoor unit, and the other end is connected to the air outlet of the interior grille to form a channel for air to enter and exit. There is no need to set up a long air duct running from the front to the back of the car. As a result, the fan back pressure is small, and the noise level of the fan and the air duct is low, which can achieve better cabin quietness. In addition, since there is no need to set up a through air supply duct and return air duct on the roof, there are only a few necessary connecting air ducts, which can effectively reduce weight and save costs, helping to meet the lightweight requirements and cost control of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1A-1B A schematic diagram of the layout of an air conditioning system applicable to an ultra-high-speed maglev train provided in an embodiment of the present invention;

[0016] Figure 2A-2B For along Figure 1A Schematic diagram of the vehicle body section at middle AA;

[0017] Figures 3A-3C Schematic diagram of the structure of the indoor unit in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in detail.In the following description, for explanation and not limiting purpose, set forth specific details, to help fully understand the present invention.But it is obvious to those skilled in the art that also can practice the present invention in other embodiment that breaks away from these specific details.

[0019] It should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0020] In the present invention, Figure 1A This is the side view of the air conditioning system layout. Figure 1B This is a top view of the air conditioning system layout.

[0021] As shown in Figures 1-3, an embodiment of the present invention provides an air-conditioning system suitable for an ultra-high-speed maglev train, wherein the system includes an indoor unit 2, an outdoor unit 4, a cavity and a static pressure cavity channel, the indoor unit 2 is arranged in the passenger cabin area of ​​the train and the fresh air hole 17 of the indoor unit 2 is connected to the fresh air inlet 1 of the body structure of the train, the outdoor unit 4 is arranged in the equipment room of the rear area of ​​the train and the opening of the outdoor unit 4 is connected to the opening of the body structure of the train, the interior boundary line 3 at the top of the passenger cabin area, the body structure boundary line 5 and a plurality of partitions surround the cavity, one end of the cavity is connected to the air outlet 13 of the indoor unit 2, and the other end is connected to the interior grille air outlet 9 to form the static pressure cavity channel.

[0022] The indoor unit is located in the space between the interior boundary line 3 and the vehicle body structure boundary line 5. Figure 2Bshown.

[0023] Through the above technical solution, the interior boundary line on the roof of the train cabin area, the boundary line of the body structure, and several partitions of the body form a cavity. One end of the cavity is connected to the air outlet of the indoor unit, and the other end is connected to the air outlet of the interior grille to form a channel (static pressure cavity channel) for air to enter and exit. There is no need to set up a long air duct running from the front to the back of the car. As a result, the fan back pressure is small, and the noise level of the fan and the air duct is low, which can achieve better cabin quietness. In addition, since there is no need to set up a through air supply duct and return air duct on the roof, there are only a few necessary connecting air ducts, which can effectively reduce weight and save costs, and help meet the lightweight requirements and cost control of the vehicle.

[0024] As shown in Figure 1, the cabin area may include cabin area 1, cabin area 2, and cabin area 3. The three cabin areas are areas that require temperature control, and each cabin area may be provided with multiple indoor units as required. For example, cabin area 1 and cabin area 2 are both provided with two indoor units; cabin area 3 has a smaller space and is provided with one indoor unit. In addition, the train may also include an equipment compartment storage area.

[0025] According to an embodiment of the present invention, the outdoor unit 4 includes a compressor, a condenser, a condensing fan and a control unit, and the control unit is used to control the operation of the compressor, the condenser and the condensing fan.

[0026] According to an embodiment of the present invention, the indoor unit 2 includes an indoor unit structural body 15, an air supply fan 19, an indoor heat exchanger 18, an expansion valve 16, an air outlet 13, a bottom return air outlet 14 and a fresh air hole 17. The air supply fan 19 and the indoor heat exchanger 18 are arranged in the indoor unit structural body 15, the air outlet 13 is arranged on both sides of the indoor unit structural body 15, the bottom return air outlet 14 is arranged at the bottom of the indoor unit structural body 15, and the fresh air hole 17 is arranged at the top of the indoor unit structural body 15. The indoor unit 2 is connected to the outdoor unit 4 through a refrigerant pipeline 11, and the expansion valve 16 is arranged between the refrigerant pipeline 11 and the indoor unit structural body 15. The refrigerant circulates through the phase change between the indoor unit 2 and the outdoor unit 11 through the refrigerant pipeline 11. Under the throttling action of the expansion valve 16, the refrigeration function is realized through the indoor heat exchanger 18.

[0027] During the air conditioning process, the compressor of the outdoor unit starts, and the refrigerant reaches the indoor unit expansion valve through an independent refrigerant pipeline. By independently controlling the opening and closing and flow rate of the expansion valve of each indoor unit, the cold energy can be brought to the indoor unit heat exchanger where it is needed, thereby achieving temperature control in different areas.

[0028] The opening of the vehicle body structure above the outdoor unit is connected to the opening on the outdoor unit body, which is used for the inlet and outlet of the cold and hot air flow of the condenser (condenser air induction heat exchange). Several indoor units of air conditioners are arranged in the cabin area as needed. The fresh air outlet of the vehicle body structure above the indoor unit is connected to the fresh air hole on the indoor unit body, which is used to introduce fresh air (fresh air from the outside) to the heat exchanger of the indoor unit of the air conditioner. The return air outlet of the indoor unit is connected to the indoor air, and the indoor air enters the heat exchanger of the indoor unit from the return air outlet again to achieve cooling.

[0029] More specifically, when the indoor unit blower is running, the air in the cabin enters the indoor unit through the indoor unit return air port, and the outside fresh air enters the indoor unit through the indoor unit fresh air hole; the cabin air and the outside fresh air are fully mixed above the blower, and then under the action of the blower, the mixed air is cooled when passing through the indoor heat exchanger. The cooled air flows from the air outlets on both sides of the indoor unit through the static pressure cavity channel and out of the interior grille air outlet into the cabin, where it exchanges heat with the air in the cabin. The air in the cabin returns to the indoor unit through the indoor unit return air port, and is mixed with the fresh air and cooled. This cycle repeats, and the air in the cabin achieves a cooling effect. For the organization of airflow in the cabin, see Figure 2B As shown by arrow 12.

[0030] Therefore, the cooling airflow is evenly distributed to both sides of the vehicle through the air outlets on the left and right sides of the air-conditioning indoor unit and the static pressure channel surrounded by the vehicle's interior and exterior structures, so that the cabin can achieve a better airflow organization form and a better thermal comfort experience. When the areas that need to be temperature controlled are independently distributed side by side along the length of the vehicle, the air-conditioning system can control the temperature of each area separately, and can also achieve temperature control at different locations in the same area, meeting the individual differences in the experience requirements for thermal comfort.

[0031] According to an embodiment of the present invention, the indoor unit 2 is disposed on the top of the cabin area, and the cavity is distributed on both sides of the indoor unit 2 .

[0032] That is, the interior boundary line at the top of the train cabin area, the body structure boundary line and multiple partition panels of the body form a cavity, which is located on the left and right sides of the roof indoor unit.

[0033] According to an embodiment of the present invention, Figure 2B As shown, the multiple partition plates include a first partition plate 6, a second partition plate 7, a third partition plate 8 and a fourth partition plate 10, the second partition plate 7 and the third partition plate 8 are located between the bottom of the indoor unit 2 and the interior boundary line 3, and the first partition plate 6 and the fourth partition plate 10 are located between the vehicle body structure boundary line 5 and the interior boundary line 3 at the lower part of the interior grille air outlet 9.

[0034] An embodiment of the present invention further provides an ultra-high-speed maglev train, wherein the train includes the above-mentioned air-conditioning system.

[0035] According to one embodiment of the present invention, the cross-section of the top of the train is circular or approximately circular.

[0036] The air conditioning system of the present invention occupies less space on the vehicle roof and can be well adapted to the arc-shaped vehicle roof cross-section structure.

[0037] According to an embodiment of the present invention, a hidden grille is provided on the fresh air outlet 1 of the vehicle body structure, and an air volume valve is provided on the hidden grille. The air volume valve is used to adjust the opening and closing of the fresh air and the air volume.

[0038] For example, the fresh air vent of the vehicle body structure can be opened at the top of the cabin, and the fresh air vent can be a louver-style hidden grille.

[0039] It can be seen from the above embodiments that the air conditioning system of the present invention has at least the following advantages:

[0040] 1) There is no through-air duct on the roof of the cabin area. There are only indoor units and necessary control cables and refrigerant pipelines. No rectangular through-air duct is required, which occupies less roof space and can thus adapt well to circular or nearly circular roof section structures.

[0041] 2) In the air-conditioning system described in the present invention, the interior boundary line on the roof of the train cabin area, the boundary line of the body structure, and several partition panels of the body form a cavity, which is distributed on the left and right sides of the roof indoor unit; one end of the cavity is connected to the air outlet of the indoor unit, and the other end is connected to the interior grille to form a channel for air to enter and exit. There is no long air duct running from the front to the back of the car, so the fan back pressure is small, and the noise level of the fan and the air duct is low, so that better cabin quietness can be achieved.

[0042] 3) There is no need to set up through-air supply ducts and return air ducts on the roof, and only a few necessary connecting air ducts are required, which helps to reduce weight and save costs, and helps to meet the lightweight requirements and cost control of the vehicle.

[0043] 4) The air conditioning system distributes the cooling airflow evenly from the air outlet of the indoor unit to the interior grille outlet through the air outlets on the left and right sides of the indoor unit of the air conditioning system and the static pressure cavity surrounded by the vehicle structure and interior boundary line. The grille outlets are evenly arranged on both sides of the vehicle; the indoor return air outlet is arranged below the indoor unit of the air conditioning system and can be evenly arranged along the length of the vehicle. Therefore, a better airflow organization form can be achieved in the cabin, and a better thermal comfort experience can be obtained.

[0044] 5) When the areas of the train that need to achieve temperature control are independently distributed side by side in front and back, the air-conditioning system can easily and independently control the temperature of each area, realize independent temperature control at different locations in the same area, and meet the thermal comfort requirements of individual differences and different areas.

[0045] Features described and / or illustrated above for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or used in place of features in other embodiments.

[0046] It should be emphasized that the term "include / comprises" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or combinations thereof.

[0047] The above devices and methods of the present invention can be implemented by hardware, or by hardware combined with software. The present invention relates to such a computer-readable program, which, when executed by a logic component, enables the logic component to implement the above-mentioned devices or components, or enables the logic component to implement the above-mentioned various methods or steps. The present invention also relates to a storage medium for storing the above-mentioned program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0048] The many features and advantages of these embodiments are apparent from this detailed description, and thus the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. Furthermore, since numerous modifications and changes will readily occur to those skilled in the art, it is not intended that the embodiments of the invention be limited to the exact construction and operation illustrated and described, but rather all suitable modifications and equivalents falling within the scope thereof are intended to be covered.

[0049] Parts of the present invention that are not described in detail are well known to those skilled in the art.

Claims

1. An air conditioning system suitable for an ultra-high-speed maglev train, characterized in that: The system comprises an indoor unit (2), an outdoor unit (4), a cavity and a static pressure cavity channel, wherein the indoor unit (2) is arranged in the passenger cabin area of ​​the train and the fresh air hole (17) of the indoor unit (2) is connected to the fresh air inlet (1) of the body structure of the train, the outdoor unit (4) is arranged in the equipment room of the rear area of ​​the train and the opening of the outdoor unit (4) is connected to the opening of the body structure of the train, the interior boundary line (3) at the top of the passenger cabin area, the body structure boundary line (5) and a plurality of partition plates form the cavity, one end of the cavity is connected to the air outlet (13) of the indoor unit (2), and the other end is connected to the interior grille air outlet (9) to form the static pressure cavity channel.

2. The system according to claim 1, characterized in that The outdoor unit (4) comprises a compressor, a condenser, a condensing fan and a control unit, wherein the control unit is used to control the operation of the compressor, the condenser and the condensing fan.

3. The system according to claim 2, characterized in that The indoor unit (2) comprises an indoor unit structural body (15), an air supply fan (19), an indoor heat exchanger (18), an expansion valve (16), an air outlet (13), a bottom air return outlet (14) and a fresh air hole (17); the air supply fan (19) and the indoor heat exchanger (18) are arranged in the indoor unit structural body (15); the air outlet (13) is arranged on both sides of the indoor unit structural body (15); the bottom air return outlet (14) is arranged at the bottom of the indoor unit structural body (15); The fresh air hole (17) is arranged at the top of the indoor unit structural body (15); the indoor unit (2) is connected to the outdoor unit (4) through a refrigerant pipeline (11); the expansion valve (16) is arranged between the refrigerant pipeline (11) and the indoor unit structural body (15); the refrigerant circulates through the refrigerant pipeline (11) in a phase change manner between the indoor unit (2) and the outdoor unit (11); and under the throttling action of the expansion valve (16), a refrigeration function is realized through the indoor heat exchanger (18).

4. The system according to claim 3, characterized in that The indoor unit (2) is arranged at the top of the cabin area, and the cavity is distributed on both sides of the indoor unit (2).

5. The system according to claim 4, characterized in that The plurality of partition plates include a first partition plate (6), a second partition plate (7), a third partition plate (8) and a fourth partition plate (10); the second partition plate (7) and the third partition plate (8) are located between the bottom of the indoor unit (2) and the interior boundary line (3); and the first partition plate (6) and the fourth partition plate (10) are located between the vehicle body structure boundary line (5) and the interior boundary line (3) at the bottom of the interior grille air outlet (9).

6. An ultra-high-speed maglev train, characterized in that: The train comprises the air conditioning system according to any one of claims 1-5.

7. The train according to claim 6, characterized in that: The cross section of the train top is circular or approximately circular.

8. The train according to claim 7, characterized in that: A hidden grille is provided on the fresh air outlet (1) of the vehicle body structure, and an air volume valve is provided on the hidden grille. The air volume valve is used to adjust the opening and closing of the fresh air and the air volume.

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