A transition cabin applicable to a vacuum pipeline

Abstract

The present invention provides a transition cabin applicable to a vacuum pipeline, comprising: multiple sections of vacuum pipe beams, a telescopic device, a support structure, a first valve device and a second valve device; the multiple sections of vacuum pipe beams are fixed to the top of the support structure and are spliced with each other through the telescopic device to form a connected transition cabin body, wherein an intake valve is arranged on at least one section of the vacuum pipe beam, and at least one section of the vacuum pipe beam is connected to a vacuum pump through a vacuum pump connection port; the first valve device is arranged at the first end of the transition cabin body and is used for controlling the opening and closing between the transition cabin body and the atmospheric environment; the second valve device is arranged at the second end of the transition cabin body and is connected to the vacuum pipeline, and is used for controlling the opening and closing between the transition cabin body and the vacuum pipeline. By applying the present invention, on the basis of ensuring that the inside of the vacuum pipeline is always in a vacuum environment, the train can smoothly transition between the vacuum pipeline and the atmospheric environment.

Description

Technical Field

[0001] This application relates to the technical field of pipeline transportation, and particularly to a transition cabin applicable to a vacuum pipeline. Background Art

[0002] Vacuum pipeline high-speed transportation is a new technology, which means that a train runs in a sealed pipeline. By pumping the pipeline to a state close to vacuum, the resistance suffered by the train during operation is reduced, so as to achieve the goal of high-speed train operation.

[0003] However, vacuum pipelines often need to be connected to the outside world. For example, the line section within the station range is generally in an atmospheric environment to facilitate passengers getting on and off, while the line section between two stations needs to be set as a vacuum environment to meet the high-speed operation of the train.

[0004] Therefore, it is necessary to set a transition section at the position where the vacuum pipeline is connected to the atmospheric environment, which can ensure that the inside of the vacuum pipeline is always in a vacuum environment and enable the train to smoothly transition between the vacuum pipeline and the atmospheric environment. This is an urgent problem to be solved in this field. Summary of the Invention

[0005] In view of this, the present invention provides a transition cabin applicable to a vacuum pipeline, which can ensure that the inside of the vacuum pipeline is always in a vacuum environment and enable the train to smoothly transition between the vacuum pipeline and the atmospheric environment.

[0006] The technical solution of the present invention is specifically implemented as follows:

[0007] A transition cabin applicable to a vacuum pipeline includes: multiple sections of vacuum pipe beams, a telescopic device, a support structure, a first valve device, and a second valve device;

[0008] The multiple sections of vacuum pipe beams are fixed to the top of the support structure and are spliced together through the telescopic device to form a connected transition cabin body. Among them, an intake valve is provided on at least one section of the vacuum pipe beam, and at least one section of the vacuum pipe beam is connected to a vacuum pump through a vacuum pump connection port;

[0009] The first valve device is arranged at the first end of the transition cabin body and is used to control the opening and closing of the transition cabin body to the atmospheric environment;

[0010] The second valve device is arranged at the second end of the transition cabin body and is connected to the vacuum pipeline, and is used to control the opening and closing of the transition cabin body to the vacuum pipeline.

[0011] Preferably, the first valve device and the second valve device respectively include: a sealed housing, a replacement track, and a door body;

[0012] The sealed housing is fixedly connected to the support structure. Door openings are respectively provided on the front side and the rear side of the sealed housing, and the door openings are matched and docked with the ports of the transition cabin or the vacuum pipeline and fixed, and the connection is sealed.

[0013] The replacement track and the door body are arranged side by side in a direction perpendicular to the track line and are slidably connected inside the sealed housing, and are used to connect or block the door openings on the front side and the rear side of the sealed housing.

[0014] Preferably, a slide rail for the replacement track and the door body to slide is arranged inside the sealed housing in a direction perpendicular to the track line.

[0015] Preferably, the side end of the replacement track is fixedly connected to the side end of the door body.

[0016] Preferably, the thicknesses of the replacement track and the door body are the same as the width inside the sealed housing.

[0017] Preferably, the telescopic device further includes: two ring plates, a plurality of connecting plates, multiple sections of telescopic bellows and a plurality of stiffening ribs;

[0018] The two ring plates are respectively wound around the outer sides of two adjacent sections of vacuum tube beams, and are respectively vertically fixed to the rear part of the outer surface of the first section of vacuum tube beam and the front part of the outer surface of the second section of vacuum tube beam;

[0019] The plurality of connecting plates and the multiple sections of telescopic bellows are staggered and sealed and connected, and are sealed and fixed between the two ring plates, outside the joint between two adjacent sections of vacuum tube beams;

[0020] The plurality of stiffening ribs are evenly distributed and vertically fixed to the outer surface of the vacuum tube beam and the outer sides of the two ring plates.

[0021] Preferably, the support structure includes a foundation and a plurality of bridge piers. The plurality of bridge piers are fixed on the foundation, and the transition cabin is fixed on the plurality of bridge piers.

[0022] Preferably, above the foundation, at the bottom of the transition cabin near the first valve device, and at the bottom of the vacuum pipeline near the second valve device, a strengthening component is fixed.

[0023] Preferably, the strengthening component includes: a rigid frame bridge pier, a shear key and a plurality of shear studs; the rigid frame bridge pier is fixed between the foundation and the transition cabin or the vacuum pipeline; the plurality of shear studs are distributed and fixed on the outer surface of the shear key; one end of the shear key is arranged inside the structure of the transition cabin or the vacuum pipeline, and one end is arranged inside the rigid frame bridge pier.

[0024] Preferably, the width of the second valve device is greater than the width of the first valve device.

[0025] As can be seen above, in the transition cabin applicable to a vacuum pipeline in the present invention, by reasonably designing the structure of the transition cabin and arranging the first valve device and the second valve device, the train can smoothly transition between the vacuum pipeline and the atmospheric environment on the basis of ensuring that the inside of the vacuum pipeline is always in a vacuum environment. Further, by arranging the telescopic device, the transition cabin can freely expand and contract to adapt to temperature changes; by arranging the strengthening component, the transition cabin can better withstand the atmospheric pressure load along the length direction of the cabin body, ensuring the reliability of the structure of the transition cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic structural view of the transition cabin applicable to a vacuum pipeline in an embodiment of the present invention.

[0027] Figure 2 FIG. is a front view of the first valve device or the second valve device in an embodiment of the present invention.

[0028] Figure 3 FIG. is a schematic structural view of the sealed housing in an embodiment of the present invention.

[0029] Figure 4 FIG. is a schematic structural view of the telescopic device in an embodiment of the present invention.

[0030] Figure 5 FIG. is a front view of the strengthening component in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] In order to make the technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] As Figures 1 to 5 shown, the present invention provides a transition cabin applicable to a vacuum pipeline, including: multiple sections of vacuum pipe beams 1, a telescopic device 2, a support structure 7, a first valve device 5, and a second valve device 6;

[0033] The multiple sections of vacuum pipe beams 1 are fixed to the top of the support structure 7 and are spliced with each other through the telescopic device 2 to form a connected transition cabin body. Among them, an intake valve 3 is arranged on at least one section of the vacuum pipe beam 1, and at least one section of the vacuum pipe beam 1 is connected to a vacuum pump through a vacuum pump connection port 4;

[0034] The first valve device 5 is arranged at the first end of the transition cabin body and is used to control the opening and closing of the transition cabin body and the atmospheric environment;

[0035] The second valve device 6 is arranged at the second end of the transition cabin body and is connected to the vacuum pipeline and is used to control the opening and closing of the transition cabin body and the vacuum pipeline.

[0036] In the technical solution of the present invention, when the train is about to enter the vacuum pipeline, the first valve device 5 can be opened first, and the second valve device 6 can be closed, so that the track line in the transition cabin is connected to the track line in the external atmospheric environment (for example, the track line at the station). Then, the train can enter the transition cabin from the atmospheric environment; then the first valve device 5 is closed, thereby disconnecting the connection between the transition cabin and the atmospheric environment and making the transition cabin airtight. At this time, the vacuum pump is used to pump the inside of the transition cabin through the vacuum pump connection port 4 to form a vacuum environment; then the second valve device 6 is opened, so that the evacuated transition cabin is connected to the vacuum pipeline, so that the train can smoothly enter the vacuum pipeline without affecting the vacuum environment in the vacuum pipeline.

[0037] When the train is about to leave the vacuum pipeline, the first valve device 5 and the second valve device 6 can be closed first, and the inside of the transition cabin is pumped into a vacuum environment by using a vacuum pump; then the second valve device 6 is opened to connect the transition cabin to the vacuum pipeline, and the train enters the transition cabin from the vacuum pipeline; then the second valve device 6 is closed. At this time, the intake valve 3 is opened to allow air to enter the transition cabin through the intake valve 3, and then the first valve device 5 is opened to connect the transition cabin to the external atmospheric environment, so that the train can smoothly enter the atmospheric environment and ensure the vacuum environment in the vacuum pipeline. Since the intake valve 3 is opened first to allow some air to slowly enter the transition cabin, and then the first valve device 5 is opened, it is possible to prevent excessive load from being generated when the first valve device 5 is directly opened, ensuring the stability and reliability of the train operation.

[0038] In the technical solution of the present invention, various implementation methods can be used to implement the above-mentioned transition cabin applicable to the vacuum pipeline. The following will take one of the implementation methods as an example to introduce the technical solution of the present invention in detail.

[0039] For example, preferably, in a specific embodiment of the present invention, as Figure 2 and Figure 3 shown, the first valve device 5 and the second valve device 6 may respectively include: a sealed housing 101, a replacement track 103 and a door body 102;

[0040] The sealed housing 101 is fixedly connected to the support structure 7. The front side and the rear side of the sealed housing 101 are respectively provided with door openings 104, and the door openings 104 are matched and docked with the ports of the transition cabin or the vacuum pipeline and fixed, and the connection part is sealed;

[0041] The replacement track 103 and the door body 102 are arranged side by side along the direction perpendicular to the track line and are slidably connected in the sealed housing 101 for connecting or blocking the door openings 104 on the front side and the rear side of the sealed housing 101.

[0042] Preferably, by way of example, a slide rail for the sliding of the replacement track 103 and the door body 102 may be provided in the sealed housing 101 along a direction perpendicular to the track line.

[0043] Preferably, by way of example, the side end of the replacement track 103 (for example, Figure 2 the right side end of the replacement track 103 in Figure 2 may be fixedly connected to the side end of the door body 102 (for example,

[0044] the left side end of the door body 102 in

[0045] so as to achieve integral sliding, which is more convenient for control and operation.

[0046] Preferably, by way of example, the thicknesses of the replacement track 103 and the door body 102 may be the same as the width inside the sealed housing 101, so that when the door body 102 slides to the door opening 104, the door openings 104 on the front and rear sides of the sealed housing 101 can be respectively blocked, double ensuring the tightness of the blockage; and when the replacement track 103 slides to the door opening 104, it can also be butted against the track line before and after the door opening with a very small gap, without affecting the operation of the train and ensuring the normal use of the track line.

[0045] In the technical solution of the present invention, for example, the two door openings 104 of the sealed housing of the second valve device 6 are respectively butted against the ports of the vacuum pipeline and the ports of the second end of the transition cabin, and the connection parts are sealed. When it is necessary to open the second valve device 6, the door body 102 in the sealed housing 101 slides towards the outside of the track line, while the replacement track 103 slides towards the middle of the track line, so that the door body 102 leaves the track line and opens, and the replacement track 103 is respectively butted against the vacuum pipeline and the track in the transition cabin to form a complete track line, thereby ensuring that the train can drive into or out of the vacuum pipeline. On the contrary, when it is necessary to close the second valve device 6, the replacement track 103 slides towards the outside of the track line, and the door body 102 slides towards the middle of the track line to close, so that the track in the vacuum pipeline can be disconnected from the track in the transition cabin and be tightly blocked by the door body 102. In addition, whether the train drives out of or into the vacuum pipeline, the second valve device 6 is opened and closed under the condition that the transition cabin is evacuated. Therefore, by providing the sealed housing 101, the connection between the transition cabin and the vacuum pipeline can be isolated from the outside world, and the replacement track and the door body both slide inside the sealed housing. Therefore, it can be ensured that no air leakage occurs during the sliding process of the door body and the replacement track, ensuring the vacuum environment inside the vacuum pipeline. In addition, one of the door openings of the sealed housing 101 of the first valve device 5 is butted against the port of the first end of the transition cabin, and the connection part is sealed, and its other door opening is communicated with the atmospheric environment. The opening and closing principle of the first valve device 5 is the same as that of the second valve device 6, and will not be elaborated here too much.

[0046] Preferably, by way of example, the width of the second valve device 6 may be greater than the width of the first valve device 5.

[0047] In addition, preferably, in a specific embodiment of the present invention, as Figure 4 shown, the telescopic device 2 may further include: two ring plates 21, a plurality of connecting plates 23, multiple sections of telescopic bellows 24, and a plurality of stiffening ribs 22;

[0048] The two ring plates 21 are respectively wound around the outer sides of two adjacent sections of the vacuum tube beam 1, and are respectively vertically fixed to the rear part of the outer surface of the first section of the vacuum tube beam 1 and the front part of the outer surface of the second section of the vacuum tube beam 1;

[0049] The plurality of connecting plates 23 and multiple sections of telescopic bellows 24 are staggered and sealed and connected, and are sealed and fixed between the two ring plates 21, outside the joint 11 between two adjacent sections of the vacuum tube beam 1;

[0050] The plurality of stiffening ribs 22 are evenly distributed and vertically fixed to the outer surface of the vacuum tube beam 1 and the outer sides of the two ring plates 21.

[0051] In the technical solution of the present invention, in order to prevent the vacuum tube beam 1 from being affected by factors such as temperature and causing expansion and contraction in the axial direction, which may affect the vacuum pipeline, a joint 11 is reserved between every two adjacent sections of the vacuum tube beam 1. By connecting the plurality of connecting plates 23 and multiple sections of telescopic bellows 24 in a staggered manner and arranging them outside the joint 11 between two adjacent sections of the vacuum tube beam 1, the telescopic property of the telescopic bellows 24 can be utilized to meet the expansion and contraction of the vacuum tube beam 1 in the axial direction, and the connecting plates 23 are used to ensure the rigidity of the telescopic device, prevent the telescopic bellows 24 from deforming excessively in the direction perpendicular to the axis of the vacuum tube beam, and at the same time, the vacuum environment inside the vacuum pipeline can always be ensured.

[0052] In addition, by way of example, in a preferred specific embodiment of the present invention, as Figure 1 shown, the support structure 7 may include a foundation 71 and a plurality of bridge piers 72. The plurality of bridge piers 72 are fixed on the foundation 71, and the transition cabin body is fixed on the plurality of bridge piers 72.

[0053] Preferably, by way of example, the form of the foundation 71 may be a pile foundation, an enlarged foundation, a caisson foundation, etc.

[0054] In addition, by way of example, in a preferred specific embodiment of the present invention, as Figure 1 shown, above the foundation 71, near the bottom of the transition cabin body close to the first valve device 5, and near the bottom of the vacuum pipeline close to the second valve device 6, a strengthening assembly 73 is fixed.

[0055] In the technical solution of the present invention, when the inside of the transition cabin is evacuated, the first valve device and the second valve device at the end need to withstand the atmospheric pressure along the length direction of the transition cabin. In order to resist this atmospheric pressure and ensure the firmness and stability of the valve device, a strengthening component 73 is provided near the valve device to enhance the ability of the first valve device 5 and the second valve device 6 to resist the atmospheric pressure.

[0056] Preferably, as an example, in a specific embodiment of the present invention, as Figure 5 shown, the strengthening component 73 may include: a rigid frame pier 731, a shear key 732, and a plurality of shear studs 733; the rigid frame pier 731 is fixed between the foundation 71 and the transition cabin or the vacuum pipeline; a plurality of shear studs 733 are distributed and fixed on the outer surface of the shear key 732; one end of the shear key 732 is arranged inside the structure of the transition cabin or the vacuum pipeline, and one end is arranged inside the rigid frame pier 731.

[0057] In the above technical solution, by setting the rigid frame pier and using the shear key and shear studs to strengthen the connection strength between the transition cabin or the vacuum pipeline and the rigid frame pier, the ability of the valve device to resist the atmospheric pressure is enhanced.

[0058] In summary, in the technical solution of the present invention, by reasonably designing the structure of the transition cabin and setting the first valve device and the second valve device, the train can smoothly transition between the vacuum pipeline and the atmospheric environment on the basis of ensuring that the inside of the vacuum pipeline is always in a vacuum environment. Further, by setting the telescopic device, the transition cabin can freely expand and contract to adapt to temperature changes; by setting the strengthening component, the transition cabin can better withstand the atmospheric pressure load along the length direction of the cabin body, ensuring the reliability of the transition cabin structure.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A transition cabin applicable to a vacuum pipeline, characterized in that, include: a plurality of sections of vacuum tube beams, a telescopic device, a support structure, a first valve device and a second valve device; The multiple sections of vacuum tube beams are fixed to the top of the support structure and are spliced together by a telescopic device to form a connected transition cabin body, wherein at least one section of the vacuum tube beam is provided with an air inlet valve, and at least one section of the vacuum tube beam is connected to the vacuum pump through a vacuum pump connection port; The first valve device is arranged at the first end of the transition cabin body, and is used to control the opening and closing of the transition cabin body and the atmospheric environment; The second valve device is arranged at the second end of the transition cabin body and is connected to the vacuum pipe, and is used to control the opening and closing of the transition cabin body and the vacuum pipe; Wherein, the first valve device and the second valve device respectively include: a sealed shell, a replacement track and a door body; The sealed shell is fixedly connected to the supporting structure, and the front and rear sides of the sealed shell are respectively provided with door openings, which are matched and fixed with the ports of the transition cabin body or the vacuum pipe, and the connection is sealed; The replacement track and the door body are arranged side by side in a direction perpendicular to the track line and are slidably connected in the closed shell to connect or block the door openings on the front and rear sides of the closed shell; Wherein, the telescopic device further comprises: two ring plates, a plurality of connecting plates, a plurality of sections of telescopic bellows and a plurality of stiffening ribs; The two ring plates respectively surround the outer sides of two adjacent sections of the vacuum tube beam and are respectively vertically fixed to the rear portion of the outer surface of the first section of the vacuum tube beam and the front portion of the outer surface of the second section of the vacuum tube beam; The plurality of connecting plates and the plurality of sections of telescopic bellows are staggered and sealedly connected, and are sealed and fixed between the two ring plates, and are located outside the joint between the two adjacent sections of the vacuum tube beam; The plurality of stiffening ribs are evenly distributed and vertically fixed to the outer surface of the vacuum tube beam and the outer sides of the two ring plates.

2. The transition cabin applicable to a vacuum pipeline according to claim 1, wherein A sliding rail for replacing the track and sliding of the door body is arranged in the sealed shell in a direction perpendicular to the track line.

3. The transition cabin applicable to a vacuum pipeline according to claim 1, characterized in that The side ends of the replacement rails are fixedly connected to the side ends of the door body.

4. The transition cabin applicable to a vacuum pipeline according to claim 1, characterized in that, The thickness of the replacement track and the door body is the same as the width of the interior of the closed shell.

5. The transition cabin applicable to a vacuum pipeline according to claim 1, characterized in that, The supporting structure includes a foundation and a plurality of bridge piers, the plurality of bridge piers are fixed on the foundation, and the transition cabin body is fixed on the plurality of bridge piers.

6. The transition cabin applicable to a vacuum pipeline according to claim 5, characterized in that, A reinforcement assembly is fixed on the bottom of the transition cabin body located above the foundation and close to the first valve device, and on the bottom of the vacuum pipe close to the second valve device.

7. The transition cabin applicable to a vacuum pipeline according to claim 6, characterized in that, The reinforcement assembly includes: a rigid frame pier, a shear tenon and a plurality of shear bolts; the rigid frame pier is fixed between the foundation and the transition cabin or the vacuum pipe; the plurality of shear bolts are distributed and fixed on the outer surface of the shear tenon; one end of the shear tenon is arranged inside the structure of the transition cabin or the vacuum pipe, and the other end is arranged inside the rigid frame pier.

8. The transition cabin applicable to a vacuum pipeline according to claim 1, wherein, The width of the second valve device is greater than the width of the first valve device.

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