Rail vehicles and low-vacuum rail vehicle systems

Abstract

A rail vehicle and a low-vacuum rail vehicle system are provided. The rail vehicle includes a ram air inlet (29) provided outside a vehicle compartment (1), a compressor (30) having an intake port connected to the ram air inlet (29), a heat exchanger (31) having a high-temperature side inlet connected to an exhaust port of the compressor (30), a high-temperature side outlet connected to the interior space of the vehicle compartment (1), and a refrigerant for heat exchange provided on its low-temperature side, and an exhaust valve (10) having a first end provided inside the vehicle compartment (1) and a second end provided outside the vehicle compartment (1).

Description

cross reference

[0001] This application claims priority to a Chinese patent application filed on April 18, 2023, bearing application number 202310415147.6 and entitled "Railway vehicle and low-vacuum railway vehicle system," the entire contents of which are incorporated herein by reference. [Technical Field]

[0002] The present invention relates to the technical field of rail vehicles, and in particular to rail vehicles and low vacuum rail vehicle systems. [Background technology]

[0003] With the continuous development of high-speed railway technology, future high-speed rail vehicle systems will have higher requirements for higher speeds, lower noise levels and greater energy savings, which is also the future development direction of high-speed transportation.

[0004] Currently, the running speed of high-speed railways has already reached 350 km / h, and further increases in running speed will result in a sharp increase in air resistance, rail resistance, and noise. Therefore, the development of a low-vacuum track magnetic levitation high-speed rail vehicle transportation system can solve these problems.

[0005] For high-speed rail vehicles to operate in low-vacuum rail, the problem of pressure regulation within the vehicle cabin must be resolved, otherwise passenger safety and comfort cannot be guaranteed. At the same time, when the low-vacuum rail vehicle system fails, emergency rescue must be provided for passengers, ensuring that they can quickly evacuate from the low-vacuum rail to ensure passenger safety.

[0006] The information disclosed in the Background section is merely intended to enhance understanding of the overall background of the present invention, and should not be considered as, or in any way imply, an admission that the information provided is prior art known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0007] In response to the problems present in the prior art, the present invention provides a rail vehicle and a low vacuum rail vehicle system. [Means for solving the problem]

[0008] The technical solution of the present invention provides a rail vehicle, the rail vehicle comprising: A ram air inlet located outside the passenger compartment; a compressor having an intake port in communication with the ram air inlet; a heat exchanger having a high-temperature side inlet communicating with an exhaust port of the compressor, a high-temperature side outlet communicating with an interior space of the passenger compartment, and a low-temperature side provided with a refrigerant for heat exchange; an exhaust valve having a first end provided inside the casing and a second end provided outside the casing.

[0009] Optionally, the heat exchanger comprises: The compressor includes a ram air cooling heat exchanger, the high temperature side inlet of which is connected to the exhaust port of the compressor, the high temperature side outlet of which is connected to the interior space of the passenger compartment, the low temperature side inlet of which is connected to the ram air inlet, and the low temperature side outlet of which is connected to the outside of the passenger compartment.

[0010] Optionally, the track vehicle comprises: a casing pressure adjusting re-cooling line, an intake port of the casing pressure adjusting re-cooling line communicating with the interior of the casing; Correspondingly, the heat exchanger The cooling system further includes a re-cooling heat exchanger, wherein a high-temperature side inlet of the re-cooling heat exchanger is connected to a high-temperature side outlet of the ram air cooling heat exchanger, a high-temperature side outlet of the re-cooling heat exchanger is connected to the interior space of the passenger compartment, a low-temperature side inlet of the re-cooling heat exchanger is connected to an exhaust port of the passenger compartment pressure adjustment re-cooling line, and a low-temperature side outlet of the re-cooling heat exchanger is connected to a first end of the exhaust valve.

[0011] Optionally, the track vehicle comprises: The cooling system further includes a ram air cooling fan, the intake port of which communicates with the ram air inlet, and the exhaust port of which communicates with the low-temperature side inlet of the ram air cooling heat exchanger.

[0012] Optionally, the ram air inlet is rotatable in at least two directions, a forward direction and a reverse direction in which the track vehicle is traveling; Correspondingly, the track vehicle: The engine further includes a ram air inlet direction change mechanism, the ram air inlet direction change mechanism being mechanically connected to the ram air inlet.

[0013] Optionally, the track vehicle comprises: The vehicle further includes an interior pressure sensor, the interior pressure sensor being signal-connected to the exhaust valve.

[0014] Optionally, the track vehicle comprises: The vehicle further includes an oxygen generator, the oxygen generator being in signal communication with the cabin pressure sensor.

[0015] The technical solution of the present invention further provides a low-vacuum rail vehicle system for operating the rail vehicle, the system comprising: a low vacuum track, the low vacuum track being provided with a plurality of sets of sealing doors capable of sealing a plurality of predetermined sections of the low vacuum track, the low vacuum track being provided with a multi-pressure intake port, the multi-pressure intake port being provided with a multi-pressure intake valve, and the low vacuum track being provided with an intra-track pressure sensor; a control center signal-connected to the in-race pressure sensor, the sealing door, and the multi-pressure intake valve; Here, the control center monitors the pressure signal of the pressure sensor within the track, and when the track vehicle encounters a situation requiring personnel evacuation, the control center sends a door-closing control signal to the sealing doors on both sides of the section where the track vehicle is located, and the control center sends an intake control signal to the multi-pressure intake valve until the pressure signal reaches a predetermined threshold.

[0016] Optionally, the low vacuum orbit comprises: a vacuum system bleed port and a vacuum system; Correspondingly, if the control center is connected to the vacuum system and the pressure signal is below a predetermined threshold, the control center sends a control signal to the vacuum system to stop operation.

[0017] Optionally, the system further comprises: Further including an emergency rescue passageway; Correspondingly, an emergency rescue door is opened in the low vacuum orbit, and the emergency rescue door separates the emergency rescue passage from the low vacuum orbit. [Effects of the Invention]

[0018] The rail vehicle and low-vacuum rail vehicle system of the present invention employs a technical means combining ram air supercharging and exhaust valve exhaust, which can regulate the pressure inside a low-vacuum high-speed rail vehicle, solving problems such as pressure drop caused by the low-vacuum environment outside the high-speed rail vehicle and pressure increase caused by air conditioning intake and ventilation, and ensuring that the pressure inside the high-speed rail vehicle meets the safety and health needs of passengers. [Brief explanation of the drawings]

[0019] In order to more clearly describe the technical solutions of the present invention or the prior art, the drawings necessary for describing the embodiments or the prior art will be briefly described below. Of course, the drawings described below are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative work. [Figure 1]1 is a schematic diagram of a structure of a rail car according to an embodiment of the present invention; [Figure 2] 1 is a schematic diagram of the structure of a low vacuum rail high speed rail vehicle system according to an embodiment of the present invention; [Explanation of symbols]

[0020] 1: Vehicle cabin; 2: Ram air forward inlet; 3: Ram air inlet direction exchange mechanism; 4: Ram air reverse inlet; 5: Electric compressor; 6: Electric compressor high-speed motor; 7: Ram air cooling fan; 8: Ram air cooling heat exchanger; 9: Cooled ram air exhaust line; 10: Exhaust valve; 11: Recooling heat exchanger; 12: Pressure-regulated air flow distribution line; 13: Vehicle cabin pressure-regulated recooling line; 14: Oxygen generator; 15: Oxygen mask distribution line; 16: Vehicle cabin pressure sensor; 17: In-track pressure sensor; 18: Front sealing door; 19: Front sealing door actuator; 20: Rear sealing door; 21: Rear sealing door actuator; 22: Vacuum system; 23: Vacuum system bleed port; 24: Double-pressure intake valve; 25: Double-pressure intake port; 26: Emergency rescue door; 27: Low vacuum track; 28: Control center; 29: Ram air inlet; 30: Compressor; 31: Heat exchanger. DETAILED DESCRIPTION OF THE INVENTION

[0021] The advantages of the present invention will be explained below with reference to the drawings and specific embodiments.

[0022] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the drawings. When the following description refers to the drawings, like numerals in different drawings refer to the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. On the contrary, they are merely examples of apparatus and methods consistent with certain aspects of this disclosure, as set forth in the appended claims.

[0023] The terms used in this disclosure are for the purpose of describing particular embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "the," and "said" are also intended to include the plural form unless the context clearly dictates otherwise. The term "and / or," as used herein, should be understood to include any and all possible combinations of one or more of the associated listed items.

[0024] In this disclosure, terms such as first, second, and third may be used to describe various pieces of information, but it should be understood that such information should not be limited to these terms. These terms are used only to distinguish between the same types of information. For example, first information may be referred to as second information, and similarly, second information may be referred to as first information, without departing from the scope of this disclosure. Depending on the context, the phrase "if" used herein may be interpreted as "when," or "if," or "depending on."

[0025] In describing the present invention, orientations or positional relationships indicated by terms such as "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are based on the orientations or positional relationships shown in the drawings, and are merely for the convenience and simplification of the description of the present invention. They do not direct or suggest that the devices or elements shown have a specific orientation or are configured or operated in a specific orientation, and therefore should not be understood as limitations on the present invention.

[0026] In the description of the present invention, unless otherwise specified or limited, terms such as "attached," "coupled," and "connected" should be understood in a broad sense, and may refer to, for example, a mechanical connection, an electrical connection, a connection between two elements, a direct connection with each other, or an indirect connection with each other via an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0027] In the following description, the use of suffixes such as "module," "component," or "unit" to indicate elements is merely for the purpose of facilitating the description of the present invention and does not have any specific meaning in itself. Therefore, the terms "module" and "component" can be used interchangeably.

[0028] Hereinafter, the rail vehicle according to the embodiment of the present application will be described in detail with reference to the drawings in terms of specific embodiments and application scenarios.

[0029] Furthermore, since high-speed rail vehicles run in low-vacuum pipelines, it is necessary to regulate the pressure inside the rail vehicles. At the same time, emergency rescue is required in the event of a system failure. Therefore, the embodiment of the present invention adopts ram air supercharging and exhaust valve exhaust in the rail vehicles to regulate the pressure inside the rail vehicles and meet the health needs of passengers, and also provides emergency oxygen supply inside the rail vehicles and emergency pressure restoration inside the low-vacuum rail to meet the emergency life-saving needs of passengers.

[0030] Figure 1 is a schematic diagram of the structure of a rail vehicle according to an embodiment of the present invention. As shown in Figure 1, the technical solution of the present invention provides a rail vehicle, which includes a ram air inlet 29 located outside the car cabin 1, a compressor 30 whose intake port is connected to the ram air inlet 29, a heat exchanger 31 whose high-temperature side inlet is connected to the exhaust port of the compressor 30 and whose high-temperature side outlet is connected to the internal space of the car cabin 1, and whose low-temperature side is provided with a refrigerant for heat exchange, and an exhaust valve 10 whose first end is located inside the car cabin 1 and whose second end is located outside the car cabin.

[0031] This embodiment adopts a technical means combining ram air supercharging and exhaust valve exhaust to adjust the pressure inside a high-speed rail vehicle on a low-vacuum track, solving problems such as pressure drop caused by the low-vacuum environment outside the high-speed rail vehicle and pressure increase caused by air conditioning intake and ventilation, and ensuring that the pressure inside the high-speed rail vehicle meets the safety and health needs of passengers.

[0032] In one embodiment, the compressor 30 is an electric compressor, the heat exchanger 31 includes a ram air cooling heat exchanger and a recooling heat exchanger, and the ram air inlet 29 includes a ram air forward inlet and a ram air reverse inlet.

[0033] Optionally, the heat exchanger 31 may include a ram air cooled heat exchanger, the high temperature inlet of the ram air cooled heat exchanger being in communication with the compressor discharge port, the high temperature outlet of the ram air cooled heat exchanger being in communication with the interior space of the casing, the low temperature inlet of the ram air cooled heat exchanger being in communication with the ram air inlet, and the low temperature outlet of the ram air cooled heat exchanger being in communication with the exterior of the casing. The ram air in the vacuum orbit is used to reduce the temperature of the airflow at the compressor outlet.

[0034] Optionally, the rail vehicle further includes a cabin pressure regulating re-cooling line, an inlet of the cabin pressure regulating re-cooling line communicating with the interior of the cabin, and correspondingly, the heat exchanger further includes a re-cooling heat exchanger, a high-temperature side inlet of the re-cooling heat exchanger communicating with the high-temperature side outlet of the ram air cooling heat exchanger, a high-temperature side outlet of the re-cooling heat exchanger communicating with the interior space of the cabin, a low-temperature side inlet of the re-cooling heat exchanger communicating with the exhaust port of the cabin pressure regulating re-cooling line, and a low-temperature side outlet of the re-cooling heat exchanger communicating with the first end of the exhaust valve. The cabin exhaust re-cooling is used to reduce the temperature of the airflow at the compressor outlet.

[0035] By combining the above two types of heat exchangers connected in series, the ram air in the vacuum track is used to reduce the temperature of the airflow at the compressor outlet, and at the same time, the cabin exhaust re-cooling is used to reduce the temperature of the airflow at the compressor outlet, thereby making the temperature of the compressed air entering the cabin appropriate, reducing the thermal load of the cabin air conditioning system, reducing the size of the equipment, and saving energy.

[0036] Optionally, the rail vehicle further includes a ram air cooling fan, the ram air cooling fan having an intake port communicating with the ram air inlet and an exhaust port communicating with the cold side inlet of the ram air cooling heat exchanger, the ram air cooling fan providing a divided flow for the air at the ram air inlet.

[0037] In one embodiment, the ram air inlet 29 can rotate in at least two directions, the forward direction and the reverse direction, in which the rail vehicle is traveling, and the rail vehicle accordingly further includes a ram air inlet direction exchange mechanism, which is mechanically connected to the ram air inlet. By using the ram air inlet direction exchange mechanism, the direction of the ram air inlet 29 can be adjusted and maintained to coincide with the forward direction of the high-speed rail vehicle, so as to meet the intake air demand of the ram air intake when the high-speed rail vehicle is traveling in the forward and reverse directions.

[0038] In one embodiment, the rail vehicle further includes an interior pressure sensor signal-connected to the exhaust valve, and an oxygen generator signal-connected to the interior pressure sensor. By adopting the technical means for emergency oxygen supply within the rail vehicle, the safety and life-saving problem caused by insufficient pressure or oxygen within the rail vehicle when the low-vacuum rail high-speed rail vehicle system fails is solved.

[0039] The technical solution of the present invention further provides a low-vacuum rail vehicle system for operating a rail vehicle, the system including: a low-vacuum rail having a plurality of sets of sealing doors capable of sealing a plurality of predetermined sections of the low-vacuum rail; a multi-pressure intake port provided on the low-vacuum rail, the multi-pressure intake port provided with a multi-pressure intake valve; and an intra-rail pressure sensor provided within the low-vacuum rail; and a control center connected to the intra-rail pressure sensor, the sealing doors, and the multi-pressure intake valve, wherein the control center monitors the pressure signal from the intra-rail pressure sensor. When the rail vehicle encounters a situation requiring personnel evacuation, the control center sends a door-closing control signal to the sealing doors on both sides of the section where the rail vehicle is located, and the control center sends an intake control signal to the multi-pressure intake valve until the pressure signal reaches a predetermined threshold.

[0040] Optionally, the low vacuum orbit further includes a vacuum system bleed port and a vacuum system, whereby the control center is connected to the vacuum system and, when the pressure signal is lower than a predetermined threshold, the control center sends a control signal to the vacuum system to stop operation.

[0041] Optionally, the system further includes an emergency rescue passageway, and a corresponding emergency rescue door is opened in the low vacuum orbit, the emergency rescue door separating the emergency rescue passageway from the low vacuum orbit.

[0042] This embodiment adopts the technical measure of emergency pressure restoration in the low-vacuum rail to solve the safety and life-saving problem caused by insufficient pressure in the rail vehicle when the low-vacuum rail high-speed rail vehicle system fails, so that passengers can quickly evacuate from the low-vacuum rail vehicle system in a safe environment, and meet the emergency life-saving needs of passengers.

[0043] In one embodiment, a low-vacuum rail high-speed rail vehicle system is specifically provided. FIG. 2 is a schematic diagram of the structure of a low-vacuum rail high-speed rail vehicle system according to an embodiment of the present invention. As shown in FIG. 2, when a vehicle compartment 1 travels within a low-vacuum rail 27, the pressure within the vehicle compartment 1 drops due to the low-pressure environment within the rail, so it is necessary to increase and adjust the pressure within the vehicle compartment 1. A forward ram air inlet 2 is attached to the top of the vehicle compartment 1, and low-pressure air within the low-vacuum rail is introduced into an electric compressor 5, which is driven by an electric compressor high-speed motor 6.

[0044] After the air is compressed by the electric compressor 5, the air pressure is slightly higher than the pressure required for the passenger compartment 1. However, if the air temperature is relatively high, it will not be able to meet the required air temperature within the passenger compartment 1. Therefore, it must be cooled. A portion of the ram air that enters through the forward ram air inlet 2 flows into the ram air cooling heat exchanger 8 by the ram air cooling fan 7, where it cools the high-temperature air compressed by the electric compressor 5. The original ram air to be cooled absorbs heat in the ram air cooling heat exchanger 8, where it is heated, and then discharged outside the passenger compartment via the cooled ram air exhaust line 9.

[0045] Due to the need for pressurization and ventilation in the passenger compartment 1, pressurized air constantly flows into the passenger compartment, causing the pressure inside the passenger compartment to rise. Therefore, it is necessary to discharge excess air to satisfy the pressure control requirement inside the passenger compartment 1. A passenger compartment pressure adjustment re-cooling line 13 is installed inside the passenger compartment 1 to discharge excess air inside the passenger compartment to the outside. However, the temperature of the air in this portion is lower than that of the air compressed by the electric compressor 5 and cooled by the ram air cooling heat exchanger 8. Therefore, the relatively low-temperature air in the passenger compartment pressure adjustment re-cooling line 13 can be used to continue cooling the relatively high-temperature air at the outlet of the ram air cooling heat exchanger 8. This process is a re-cooling process and is carried out in the re-cooling heat exchanger 11. On the high-temperature side of the re-cooling heat exchanger 11, the high-temperature air is cooled, enters the pressure adjustment air flow distribution line 12, and then is sent into the passenger compartment. On the low-temperature side of re-cooling heat exchanger 11, the relatively low-temperature air from cabin pressure adjustment re-cooling line 13 is heated and then discharged to the outside of the cabin through exhaust valve 10. The opening of exhaust valve 10 is controlled by cabin pressure sensor 16, and the pressure inside the cabin is controlled by controlling the flow rate of air discharged to the outside of the cabin in accordance with the magnitude of the pressure inside the cabin.

[0046] Since the casing 1 can travel in two directions within the low vacuum orbit 27, i.e., forward and reverse directions, it is required that the ram air inlet coincide with the traveling direction of the casing 1. Therefore, a ram air inlet direction exchange mechanism 3 is installed below the ram air forward inlet 2. When the casing 1 travels in the reverse direction, the ram air inlet direction exchange mechanism 3 converts the ram air forward inlet 2 into a ram air reverse inlet 4, so that the ram air reverse inlet 4 can coincide with the traveling direction of the casing 1.

[0047] If an emergency such as a malfunction or pressure shortage occurs in the low-vacuum track 27, the pressure inside the rail vehicle 1 will drop, causing a decrease in the oxygen concentration, threatening the safety and health of passengers inside the rail vehicle. If the control center 28 detects that the pressure detected by the cabin pressure sensor 16 is lower than the critical pressure value, the control center 28 controls the oxygen generator 14 inside the rail vehicle 1 to operate, and oxygen will be introduced into the oxygen masks located above and in front of each passenger via the oxygen mask distribution line 15. Passengers will wear the oxygen masks and absorb the oxygen, ensuring a supply of oxygen for several hours.

[0048] If the cabin 1 malfunctions in the low vacuum track 27 and passengers need to be evacuated, the cabin pressure sensor 16 and the track pressure sensor 17 send pressure signals to the control center 28. The cabin 1 must stop in the low vacuum track 27, and pressure must be restored to the low vacuum track section in which the cabin 1 is located. Front and rear sealing doors 18 and 20 are installed at regular intervals within the low vacuum track 27. The front and rear sealing doors 18 and 20 are opened and closed by a front and rear sealing door actuator 19 and a rear sealing door actuator 21, respectively. Under normal circumstances, the front and rear sealing doors 18 and 20 are open. In an emergency, if dual pressure is required, the control center 28 closes the front and rear sealing doors 18 and 20 according to the low vacuum track position in which the cabin 1 is located. At the same time, the low vacuum track vacuum system 22 and vacuum system bleed port 23 for that section are closed, and the dual pressure intake port 25 and dual pressure intake valve 24 are opened. The multi-pressure intake port 25 and the multi-pressure intake valve 24 can restore the pressure in the track of the section to normal pressure within a predetermined time, and in this case, the doors of the high-speed rail vehicle and the emergency rescue door 26 in the low-vacuum track are opened, and passengers inside the vehicle can evacuate from the low-vacuum track 27 through the personnel safety passage inside the low-vacuum track 27, and external rescuers can also enter the low-vacuum track 27 through the emergency rescue door 26 to carry out emergency rescue.

[0049] It should be noted that the embodiments of the present invention have excellent implementability and do not restrict the present invention in any way. Those skilled in the art may use the technical content disclosed above to change or modify the above embodiments into equivalent effective embodiments. However, as long as they do not deviate from the content of the technical solution of the present invention, any modifications or equivalent changes and modifications to the above embodiments based on the technical essence of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A ram air inlet located outside the passenger compartment; a compressor having an intake port in communication with the ram air inlet; a heat exchanger having a high-temperature side inlet communicating with an exhaust port of the compressor, a high-temperature side outlet communicating with an interior space of the passenger compartment, and a low-temperature side provided with a refrigerant for heat exchange; an exhaust valve having a first end located inside the cabin and a second end located outside the cabin.

2. The heat exchanger is a ram air cooled heat exchanger, wherein a high temperature side inlet of the ram air cooled heat exchanger is connected to an exhaust port of the compressor, a high temperature side outlet of the ram air cooled heat exchanger is connected to an interior space of the casing, a low temperature side inlet of the ram air cooled heat exchanger is connected to the ram air inlet, and a low temperature side outlet of the ram air cooled heat exchanger is connected to the outside of the casing. The rail vehicle of claim 1 .

3. The rail vehicle is a casing pressure adjusting re-cooling line, an intake port of the casing pressure adjusting re-cooling line communicating with the interior of the casing; Correspondingly, the heat exchanger: The present invention further includes a re-cooling heat exchanger, wherein a high-temperature side inlet of the re-cooling heat exchanger is in communication with a high-temperature side outlet of the ram air cooling heat exchanger, a high-temperature side outlet of the re-cooling heat exchanger is in communication with an interior space of the casing, a low-temperature side inlet of the re-cooling heat exchanger is in communication with an exhaust port of the casing pressure adjustment re-cooling line, and a low-temperature side outlet of the re-cooling heat exchanger is in communication with a first end of the exhaust valve.

3. The track vehicle of claim 2.

4. The rail vehicle is The cooling system further includes a ram air cooling fan, an intake port of the ram air cooling fan communicating with the ram air inlet, and an exhaust port of the ram air cooling fan communicating with a low-temperature side inlet of the ram air cooling heat exchanger.

3. The track vehicle of claim 2.

5. the ram air inlet is rotatable in at least two directions, a forward direction and a reverse direction in which the rail vehicle is traveling; Correspondingly, the rail vehicle: The invention further includes a ram air inlet direction change mechanism, the ram air inlet direction change mechanism being mechanically connected to the ram air inlet. The rail vehicle of claim 1 .

6. The rail vehicle is The present invention further includes a vehicle interior pressure sensor, the vehicle interior pressure sensor being signal-connected to the exhaust valve. The rail vehicle of claim 1 .

7. The rail vehicle is The invention further comprises an oxygen generator, the oxygen generator being signal-connected to the passenger compartment pressure sensor.

7. The track vehicle of claim 6.

8. 8. A low vacuum rail vehicle system for operating a rail vehicle according to any one of claims 1 to 7, said system comprising: a low vacuum track, the low vacuum track being provided with a plurality of sets of sealing doors capable of sealing a plurality of predetermined sections of the low vacuum track, the low vacuum track being provided with a multi-pressure intake port, the multi-pressure intake port being provided with a multi-pressure intake valve, and the low vacuum track being provided with an intra-track pressure sensor; a control center signal-connected to the sealing door, the multi-pressure intake valve, and the in-race pressure sensor; Here, the control center monitors the pressure signal of the pressure sensor within the track, and when the track vehicle encounters a situation requiring evacuation of personnel, the control center sends a door closing control signal to the sealing doors on both sides of the section in which the track vehicle is located, and the control center sends an intake control signal to the multi-pressure intake valve until the pressure signal reaches a predetermined threshold.

9. The low vacuum orbit is a vacuum system bleed port and a vacuum system; Correspondingly, the control center is connected to the vacuum system, and when the pressure signal is lower than a predetermined threshold, the control center sends a control signal to the vacuum system to stop operation.

9. The low vacuum rail vehicle system according to claim 8.

10. The system comprises: Further including an emergency rescue passageway; In response to this, an emergency rescue door is opened in the low vacuum orbit, and the emergency rescue door separates the emergency rescue passage from the low vacuum orbit.

9. The low vacuum rail vehicle system according to claim 8.

Images