Bidirectional sealing gate valve suitable for ultrahigh-speed low-vacuum pipeline maglev transportation system

Abstract

The invention relates to the technical field of ultra-high-speed low-vacuum pipeline maglev transportation systems, and discloses a bidirectional sealing gate valve suitable for an ultra-high-speed low-vacuum pipeline maglev transportation system, which comprises a main valve body, a valve core device, a first box body, a replacement track, a second box body, an electric transmission device, a base and an integral moving device, the first box body is used for placing the replacement track when the valve is closed, the second box body is used for placing the valve element device when the valve is opened, the main valve body is connected with the whole vacuum pipeline system, the electric transmission system is connected with the valve element device, and the valve element device is connected with the replacement track. The electric transmission device acts and drives the valve element device and the replacement rail to move towards the second box body side, and after the valve element device is in place, the replacement rail is in butt joint with the rail of the whole traffic system to achieve normal passing of vehicles. When the valve is closed, the electric transmission device pushes the valve element device and the replacement rail to move towards the side of the first box body, and the whole vacuum pipeline system is separated after the valve element device is in place.

Description

Technical Field

[0001] The present invention relates to the technical field of ultra-high speed and low-vacuum pipeline maglev transportation systems, and particularly to a two-way sealed plug valve applicable to ultra-high speed and low-vacuum pipeline maglev transportation systems. Background Art

[0002] The double-sealed plug valve is an important component of the vacuum line system. Its main function is to connect and cut off the vacuum line under normal operation or emergency conditions, enabling the local pipe section area on the pipeline to be restored to normal pressure or establish a vacuum separately as required, so as to realize the daily maintenance of pipeline faults and the safe escape of passengers in emergency situations. However, the existing plug valves are usually fixed and immovable, which is not convenient for inspection and maintenance. Summary of the Invention

[0003] The present invention provides a two-way sealed plug valve applicable to ultra-high speed and low-vacuum pipeline maglev transportation systems, which can solve the technical problems in the prior art.

[0004] The present invention provides a two-way sealed plug valve applicable to ultra-high speed and low-vacuum pipeline maglev transportation systems. Among them, the plug valve includes a main valve body, a valve core device, a first box body, a replacement track, a second box body, an electric drive device, a base, and an overall moving device. The main valve body, the valve core device, the first box body, the replacement track, the second box body, and the electric drive device are all arranged on the base and the overall moving device to realize the movement of the plug valve. The first box body is used to park the replacement track when the valve is closed, and the second box body is used to park the valve core device when the valve is opened. The main valve body is connected to the entire vacuum pipeline system, the electric drive system is connected to the valve core device, and the valve core device is connected to the replacement track. When the valve is opened, the electric drive device actuates and drives the valve core device and the replacement track to move towards the second box body side. After the valve core device is in place, the replacement track is docked with the track of the entire transportation system to realize the normal passage of vehicles; when the valve is closed, the electric drive device pushes the valve core device and the replacement track to move towards the first box body side. After the valve core device is in place, the entire vacuum pipeline system is disconnected.

[0005] Preferably, the main valve body is connected to the entire vacuum pipeline system by a flange.

[0006] Preferably, the plug valve further includes a manual opening and closing device for the valve core, which is used to manually open and close the valve in case of a failure of the electric drive device.

[0007] Preferably, the valve core device includes at least 1 moving frame trolley, multiple opening and closing actuating connecting rods, and 2 valve plates. Sealing rubber strips are installed on the 2 valve plates.

[0008] Preferably, the main valve body is an integrally welded and sealed structure.

[0009] Preferably, the replacement track includes at least 2 guide rails and one support rail.

[0010] Preferably, the height of the first box body is lower than that of the second box body.

[0011] Preferably, the first box body is connected to the main valve body through a sealing flange, the second box body is provided with an installation interface for the electric drive device, and both the first box body and the second box body are sealed box bodies and are provided with detachable maintenance covers.

[0012] Preferably, the electric drive device includes at least 2 lead screws, one set of motors and 2 sets of couplings.

[0013] Preferably, the base and the integral moving device include guide wheels, slide ways and a base body.

[0014] Through the above technical solutions, the plug valve is used in the ultra-high-speed and low-vacuum pipeline maglev transportation system. Under special requirements or in emergency situations, it can be used as a temporary partition device for some sections of the vacuum pipeline. Since it has a two-way sealing function, it can meet the sealing requirements in two directions. At the same time, the plug valve is equipped with an integral moving device, which is convenient for the maintenance of the entire valve and does not affect the operation of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings included are used to provide a further understanding of the embodiments of the present invention, and they form a part of the specification, used to illustrate the embodiments of the present invention, and together with the text description to explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Fig. shows a schematic diagram of a two-way sealing plug valve applicable to an ultra-high-speed and low-vacuum pipeline maglev transportation system according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. The description of at least one exemplary embodiment below is actually only illustrative and in no way restrictive of the present invention and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0020] Figure 1 A schematic diagram of a two-way sealed flap valve applicable to a super-high-speed and low-vacuum pipeline maglev transportation system according to an embodiment of the present invention is shown.

[0021] As Figure 1 shown, an embodiment of the present invention provides a two-way sealed flap valve applicable to a super-high-speed and low-vacuum pipeline maglev transportation system. The flap valve includes a main valve body 1, a valve core device 2, a first box body 4, a replacement track 3, a second box body 5, an electric drive device 6, and a base and an overall moving device 8. The main valve body 1, the valve core device 2, the first box body 4, the replacement track 3, the second box body 5, and the electric drive device 6 are all arranged on the base and the overall moving device 8 to realize the movement of the flap valve. The first box body 4 is used to park the replacement track 3 when the valve is closed, and the second box body 5 is used to park the valve core device 2 when the valve is opened. The main valve body 1 is connected to the entire vacuum pipeline system, the electric drive system 6 is connected to the valve core device 2, and the valve core device 2 is connected to the replacement track 3. When the valve is opened, the electric drive device 6 actuates and drives the valve core device 2 and the replacement track 3 to move toward the second box body 5 side. After the valve core device 2 is in place, the replacement track 3 is docked with the track of the entire transportation system to realize the normal passage of vehicles. When the valve is closed, the electric drive device 6 pushes the valve core device 2 and the replacement track 3 to move toward the first box body 4 side. After the valve core device 2 is in place, the entire vacuum pipeline system is disconnected.

[0022] With the above technical solution, the plug valve is used in the ultra-high speed and low-vacuum pipeline maglev transportation system. Under special requirements or emergency conditions, it can be used as a temporary partition device for some sections of the vacuum pipeline. Since it has a two-way sealing function, it can meet the sealing requirements in both directions. At the same time, the plug valve is equipped with an overall moving device, which is convenient for the overhaul and maintenance of the entire valve without affecting the operation of the entire system.

[0023] According to an embodiment of the present invention, the main valve body 1 is connected to the entire vacuum pipeline system through a flange.

[0024] According to an embodiment of the present invention, the plug valve further includes a manual opening and closing device 7 for the valve core, which is used to manually open and close the valve in the case of a failure of the electric drive device 6.

[0025] That is to say, the manual opening and closing device for the valve core can be used as a temporary emergency opening and closing tool in the case of a motor failure, and a lengthened lever can be connected to facilitate the manual opening and closing of the valve.

[0026] According to an embodiment of the present invention, the valve core device 2 includes at least one moving frame trolley, a plurality of opening and closing actuating connecting rods, and two valve plates. Sealing rubber strips are installed on the two valve plates.

[0027] As the main sealing device of the plug valve and the low-vacuum pipeline, the valve core device can drive the opening and closing operations of the two actuating valve plates through the cooperation of the moving frame trolley and a plurality of opening and closing actuating connecting rods, so as to realize the opening and closing of the valve.

[0028] According to an embodiment of the present invention, the main valve body 1 is an integrally welded and sealed structure.

[0029] Specifically, when the plug valve is opened, the main valve body forms an integral body with the entire vacuum pipe, and the valve body is provided with sealing installation interfaces for the first box body and the second box body.

[0030] According to an embodiment of the present invention, the replacement track 3 includes at least two guide rails and one support rail.

[0031] Among them, the replacement track is connected to the valve core device and actuates simultaneously with the valve core device. When the valve is opened, it runs to the center of the valve and docks with the track in the entire pipeline to provide a running track for the vehicle to pass through.

[0032] According to an embodiment of the present invention, the height of the first box body 4 is lower than the height of the second box body 5.

[0033] According to an embodiment of the present invention, the first box body 4 is connected to the main valve body 1 through a sealing flange. The second box body is provided with an installation interface for the electric drive device 6. Both the first box body 4 and the second box body 5 are sealed box bodies and are provided with detachable maintenance manhole covers.

[0034] According to an embodiment of the present invention, the electric drive device 6 includes at least two lead screws, a set of motors, and two sets of couplings.

[0035] The electric drive device is a drive device for actuating the valve core device and the replacement track, and the entire drive path is motor - coupling - lead screw - valve core moving frame trolley.

[0036] According to an embodiment of the present invention, the base and the overall moving device 8 include guide wheels, slideways, and a base body.

[0037] That is, the base and the overall moving device are arranged below the entire valve and are composed of guide wheels, slideways, and the entire base. Since the entire valve system is complex and has a long maintenance cycle, this device can move the entire valve outside the maglev transportation system of the ultra - high - speed and low - vacuum pipeline for maintenance, and at the same time move the spare valve into the system without affecting the operation of the entire system.

[0038] The two - way sealing plug valve applicable to the maglev transportation system of ultra - high - speed and low - vacuum pipelines according to the present invention will be described below with reference to examples. Among them, the plug valve includes: one set of main valve body 1, one set of valve core device 2, one set of first box body 4, one set of replacement track 3, one set of second box body 5, one set of electric drive device 6, one set of valve core manual opening and closing device 7, and one set of base and overall moving device 8.

[0039] Among them, after the plug valve is assembled as a whole, the main valve body 1 is connected to the entire vacuum pipeline system through a flange. The electric drive device 6 is connected to the valve core device 2, and the valve core device 2 is connected to the replacement track 3. When the valve is opened, the electric drive system 6 actuates, driving the valve core device 2 and the replacement track 3 to move towards the second box body 5 side. After reaching the position, the replacement track is docked with the track of the entire transportation system to enable normal vehicle passage; when the valve is closed, the electric drive device 6 pushes the valve core device 2 and the replacement track 3 to move towards the first box body side. When the valve core device 2 reaches the position, the entire vacuum pipeline can be isolated.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0041] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0042] In addition, it should be noted that the use of terms such as "first", "second" etc. to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present invention.

[0043] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A two-way sealed flap valve applicable to a maglev transportation system in a super-high-speed and low-vacuum pipeline, characterized in that, The plug valve includes a main valve body (1), a valve core device (2), a first box body (4), a replacement track (3), a second box body (5), an electric drive device (6), and a base and an integral moving device (8). The main valve body (1), the valve core device (2), the first box body (4), the replacement track (3), the second box body (5), and the electric drive device (6) are all arranged on the base and the integral moving device (8) to realize the movement of the plug valve. The first box body (4) is used to park the replacement track (3) when the valve is closed. The second box body (5) is used to park the valve core device (2) when the valve is open. The main valve body (1) is connected to the entire vacuum pipeline system. The electric drive system (6) is connected to the valve core device (2). The valve core device (2) is connected to the replacement track (3). When the valve is opened, the electric drive device (6) actuates and drives the valve core device (2) and the replacement track (3) to move towards the second box body (5). After the valve core device (2) is in place, the replacement track (3) is docked with the track of the entire traffic system to realize the normal passage of vehicles. When the valve is closed, the electric drive device (6) pushes the valve core device (2) and the replacement track (3) to move towards the first box body (4). After the valve core device (2) is in place, the entire vacuum pipeline system is disconnected.

2. The plug valve according to claim 1, wherein The main valve body (1) is connected to the entire vacuum pipeline system through a flange.

3. The plug valve according to claim 2, wherein, The plug valve further includes a manual opening and closing device (7) for the valve core, which is used to manually open and close the valve in the case of a failure of the electric drive device (6).

4. The plug valve according to claim 1, characterized in that, The valve core device (2) includes at least one moving frame trolley, a plurality of opening and closing actuating connecting rods, and two valve plates. Sealing rubber strips are installed on the two valve plates.

5. The plug valve according to claim 4, characterized in that, The main valve body (1) is an integrally welded and sealed structure.

6. The plug valve according to claim 4, characterized in that, The replacement track (3) includes at least two guide rails and one support rail.

7. The flap valve according to claim 6, characterized in that, The height of the first box body (4) is lower than that of the second box body (5).

8. The plug valve according to claim 7, characterized in that, The first box body (4) is connected to the main valve body (1) through a sealing flange. The second box body is provided with an installation interface for the electric drive device (6). Both the first box body (4) and the second box body (5) are sealed box bodies and are provided with detachable maintenance manhole covers.

9. The plug valve according to claim 8, wherein The electric drive device (6) includes at least two lead screws, a set of motors, and two sets of couplings.

10. The flap valve according to claim 9, characterized in that, The base and the integral moving device (8) include guide wheels, slideways, and a base body.

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