WO2018233430A1

WO2018233430A1 - Vacuumizing device for vacuum pipeline and vacuumizing method therefor

Info

Publication number: WO2018233430A1
Application number: PCT/CN2018/087722
Authority: WO
Inventors: 苏彬诚
Original assignee: 苏彬诚
Priority date: 2017-06-23
Filing date: 2018-05-21
Publication date: 2018-12-27
Also published as: CN107097800A

Abstract

Provided are a vacuumizing device for a vacuum pipeline and a vacuumizing method therefor. The vacuumizing device comprises an external vacuumizing device arranged outside the vacuum pipeline (2) and an internal vacuumizing device arranged inside the vacuum pipeline (2), wherein the internal vacuumizing device comprises a wind shielding hood (31) arranged at the head of a high-speed train (1) and used for matching an inner wall of the vacuum pipeline (2) at the periphery of the head of the high-speed train (1) after being unfolded, a driving mechanism (32) connected to the wind shielding hood (31) and used for driving the opening and closing of the wind shielding hood (31), and an air collection device arranged in a running-through manner with a wind collection channel (33) of the wind shielding hood (31), the air collection device being fastened to the high-speed train (1). By means of the structural design, it is possible to conveniently achieve a vacuumizing operation inside the vacuum pipeline (2) by means of the foldable wind shielding hood (31), so as to improve the vacuumizing efficiency thereof, and a balanced air pressure inside the vacuum pipeline (2) can be flexibly maintained according to a pre-set air pressure value of the vacuum pipeline (2), and therefore, the vacuumizing operation on the vacuum pipeline (2) is conveniently and efficiently performed.

Description

Vacuum pumping device for vacuum pipeline and vacuuming method thereof

Technical field

The invention relates to the technical field of high-speed trains, in particular to a vacuuming device for a vacuum pipe and a vacuuming method thereof.

Background technique

The high-speed train is a kind of modern high-tech rail transit development direction. After the high-speed rail of the wheel-rail technology achieves a speed of 400KM/h, there is no higher development space due to the friction between the wheel and rail. The way to achieve higher speed train speed can also adopt the magnetic levitation system, which realizes the contactless suspension and guidance between the train and the track through electromagnetic force, and then uses the electromagnetic force generated by the linear motor to pull the train. At present, the maglev train system can be divided into two directions, namely the constant-conducting magnetic (EMS) used in Germany and the superconducting magnetic repulsion (EDS) train used in Japan. The current highest speed is the Japanese Superconducting Magnetic Rejection (EDS) train, which has reached 600KM/h, and this speed has not yet been truly commercialized.

As the goal that human beings have been pursuing, speed has always been higher and not the highest. The development of new and more advanced transportation tools, in order to achieve new speed improvements, the use of the above two magnetic suspension technology in the air can not meet the requirements. Since the magnetic levitation system developed in the atmosphere accounts for an increasing proportion of energy consumed by air resistance at high speeds, the development of a magnetic levitation train system operating in a vacuum pipeline has become a popular discipline.

The high-speed train developed under the prior art has a complicated design of vacuuming equipment, high construction cost, and low efficiency of vacuuming.

Summary of the invention

It is an object of the present invention to provide a convenient and efficient vacuuming device and a vacuuming method thereof.

To this end, the present invention employs the following technical solutions:

An evacuating device for a vacuum pipe includes an external vacuuming device disposed outside the vacuum pipe, and an internal vacuuming device disposed inside the vacuum pipe; the internal vacuuming device is disposed on a head of the high speed train for a windshield that cooperates with the inner wall of the vacuum duct at the periphery of the high-speed train head after deployment, a driving mechanism connected to the windshield for driving the windshield to open and close, and a set with the windshield The air passage is disposed through the gas collecting device, and the gas collecting device is fastened to the high speed train.

The windshield is sleeved on the head of the high-speed train, and the wind collecting passage is annularly disposed at a joint of the windshield and the high-speed train, and the windshield is arranged in a trumpet shape. .

Wherein, the gas collecting device comprises a vacuum pump connected through the collecting passage, and a gas storage tank connected to the vacuum pump, wherein the vacuum pump and the gas storage tank are both mounted on the high-speed train.

Wherein, after the windshield is deployed, it is matched with the inner wall of the vacuum pipe and the inner wall component of the vacuum pipe.

Wherein, one end of the windshield near the inner wall of the vacuum pipe is provided as a flexible material.

Wherein the root of the windshield is hinged to the high speed train.

Wherein, the inner wall of the vacuum pipe is provided with a first pressure sensor for detecting the internal pressure of the vacuum pipe, the first pressure sensor is electrically connected with the electric control device of the external vacuuming device; the outer wall of the high-speed train is provided for detecting A second pressure sensor of the internal pressure of the vacuum pipe, the second pressure sensor and the drive mechanism are electrically connected to the electronic control device of the vacuum high speed train.

A vacuuming method for a vacuum pipe, comprising the vacuuming device described above, comprising the steps of:

1). Start the external vacuuming device, start the high-speed train and expand the windshield, start the internal vacuuming device, and vacuum the vacuum pipe at the same time inside and outside;

2). When the pressure sensor to be installed in the vacuum pipe detects that the air pressure in the vacuum pipe reaches a predetermined rough vacuum pressure value, the external vacuuming device is automatically turned off, and the internal vacuuming device continues to operate;

3). When the air pressure in the vacuum pipe is lower than the preset vacuum pressure value of the vacuum pipe, close the internal vacuum system and the windshield is closed.

4) When the air pressure in the vacuum pipe rises to a preset fixed vacuum pressure value, the train can open the windshield in the deceleration state and restart the internal vacuuming device to balance the pressure rise of the vacuum pipe.

Advantageous Effects of Invention: The present invention provides a vacuum pumping device for a vacuum pipe and a vacuuming method thereof, comprising an external vacuuming device disposed outside the vacuum pipe, and an internal vacuuming device disposed inside the vacuum pipe; The internal vacuuming device includes a windshield disposed on the high-speed train head for cooperating with the inner wall of the vacuum duct at the periphery of the high-speed train head, and connected to the windshield for driving the windshield a driving mechanism that opens and closes, and a gas collecting device that is disposed through the wind collecting passage of the windshield, and the gas collecting device is fastened to the high speed train. With this structural design, the vacuum evacuation operation of the vacuum pipe can be conveniently realized by the expandable windshield, and the air pressure balance in the vacuum pipe can be flexibly maintained according to the preset pressure value of the vacuum pipe, thereby facilitating efficient and efficient pairing. The vacuum pipe is vacuumed.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front elevational view showing the windshield of the internal vacuuming device of the present invention in an unfolded state.

Figure 2 is a side view of Figure 1.

Figure 3 is a side elevational view of the windshield of the internal vacuuming device of the present invention when it is stowed.

Detailed ways

The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 to FIG. 3, the embodiment provides a vacuuming device for a vacuum pipe, comprising an external vacuuming device disposed outside the vacuum pipe, and an internal vacuuming device disposed inside the vacuum pipe 2; The internal vacuuming device includes a windshield 31 disposed on the head of the high speed train 1 for deployment and cooperating with the inner wall of the vacuum duct 2 of the high speed train 1, and connected to the windshield 31 for driving the block A driving mechanism 32 that opens and closes the windshield 31, and a gas collecting device that is provided to penetrate the collecting passage 33 of the windshield 31, and the gas collecting device is fastened to the high-speed train 1.

Specifically, in the embodiment, the windshield cover 31 is sleeved on the head of the high-speed train 1, and the wind collecting passage 33 is annularly disposed around the connection between the windshield cover 31 and the high-speed train 1. The root portion of the windshield 31 is hinged to the high-speed train 1, and the windshield 31 is flared to form a flared shape. One end of the windshield 31 adjacent to the vacuum tube wall is provided with a rubber material to prevent the windshield from being scratched when the high speed train is swung at a high speed during the high speed running of the high speed train. In this way, after the windshield is deployed, the airflow blown on the face can be timely and exported through the air collection passage 33.

In order to facilitate the subsequent collection of the airflow from the wind channel 33, the vacuum high-speed train can be used for subsequent use. In this embodiment, the gas collection device can be collected by the gas collecting device. The gas collecting device in the embodiment includes the collecting channel 33. A vacuum pump 34 that is connected in series, and a gas storage tank 35 that communicates with the vacuum pump 34, the vacuum pump 34 and the gas storage tank 35 are both mounted on the bottom of the high-speed train 1.

In this embodiment, after the windshield 31 is deployed, the inner wall of the high-speed train 1 and the inner wall assembly of the high-speed train 1 are gap-fitted, so that the gap between the two forms the above-mentioned wind collecting passage, and then The collecting passage is connected to the vacuum pump through the air duct, and the air is compressed by the vacuum pump and then input to the gas storage tank for storage, and then discharged to the outside of the vacuum pipe through the pipeline after stopping at the station. It can also be set up using the similar scheme described above, and will not be described here.

In order to be able to accurately and accurately obtain the air pressure value in the vacuum pipe, the vacuum pipe 2 is provided with a first pressure sensor for detecting the internal pressure of the vacuum pipe 2, and the first pressure sensor is electrically connected to the external vacuum device through the electronic control device. In this way, the operation of the external vacuuming device is controlled; the outer wall of the high-speed train is provided with a second pressure sensor for detecting the internal pressure of the vacuum pipe 2, and the second pressure sensor and the driving mechanism 32 are both electrically controlled by the vacuum high-speed train 1 Electrical connection for controlling the operation of the internal vacuuming device.

A vacuuming method for a vacuum pipe 2, comprising the vacuuming device described above, comprising the steps of:

1). Start the external vacuuming device, start the high-speed train and expand the windshield, start the internal vacuuming device, and vacuum the vacuum pipe 2 at the same time. This stage is mainly applicable to the vacuum pipe in the initial state, that is, vacuum. When the pipe is equal to the external atmospheric pressure, the vacuum pumping operation in the initial state of the vacuum pipe is completed by the vacuum pumping station provided outside the vacuum pipe and the windshield provided on the head of the high-speed train.

2). When the pressure sensor disposed in the vacuum pipe detects that the air pressure in the vacuum pipe reaches a predetermined rough vacuum pressure value, the external vacuuming device is automatically turned off, and the internal vacuuming device continues to operate;

By adopting the above-mentioned vacuuming method, the high-speed airflow generated in front of the front of the vehicle can be collected by the windshield and then flowed into the gas collecting device through the collecting passage 33, thereby greatly increasing the intake of the vacuum pump 34. The mouth pressure makes the vacuum efficiency of the vacuum pump 34 greatly improved, and the vacuuming operation in the vacuum pipe can be completed efficiently and quickly.

The technical principles of the present invention have been described above in connection with specific embodiments. The descriptions are merely illustrative of the principles of the invention and are not to be construed as limiting the scope of the invention. Based on the explanation herein, those skilled in the art will be able to contemplate other specific embodiments of the present invention without departing from the scope of the invention.

Claims

An evacuating device for a vacuum pipe, comprising: an external vacuuming device disposed outside the vacuum pipe; and an internal vacuuming device disposed inside the vacuum pipe; the internal vacuuming device comprising a high-speed train a head for deploying a windshield that cooperates with an inner wall of the vacuum duct at the periphery of the high-speed train head, a driving mechanism connected to the windshield for driving the windshield to open and close, and the same The wind collecting passage of the wind hood passes through the gas collecting device provided, and the gas collecting device is fastened to the high speed train.
The vacuuming device for a vacuum pipe according to claim 1, wherein the windshield is sleeved on a head of the high-speed train, and the wind collecting passage is annularly disposed in the block At the junction of the windshield and the high speed train, the windshield is arranged in a trumpet shape.
A vacuuming device for a vacuum pipe according to claim 2, wherein said gas collecting means comprises a vacuum pump connected to said collecting passage, and a gas tank connected to said vacuum pump The vacuum pump and the gas storage tank are both mounted on the high speed train.
The vacuuming device for a vacuum pipe according to claim 1, wherein the windshield is unfolded to fit the inner wall of the vacuum pipe and the inner wall assembly of the vacuum pipe.
A vacuuming device for a vacuum pipe according to claim 1, wherein one end of the windshield near the inner wall of the vacuum pipe is provided as a flexible material.
A vacuuming device for a vacuum duct according to claim 1, wherein a root portion of said windshield is hinged to said high speed train.
The vacuuming device for a vacuum pipe according to claim 1, wherein the inner wall of the vacuum pipe is provided with a first pressure sensor for detecting the internal pressure of the vacuum pipe, the first pressure sensor and the outside The electric control device of the vacuuming device is electrically connected; the outer wall of the high-speed train is provided with a second pressure sensor for detecting the internal pressure of the vacuum pipe, and the second pressure sensor and the driving mechanism are respectively connected with the electric control device of the vacuum high-speed train Electrical connection.
A vacuuming method for a vacuum pipe, comprising the vacuuming device according to any one of claims 1 to 7, comprising the steps of:

1). Start the external vacuuming device, start the high-speed train and expand the windshield, start the internal vacuuming device, and vacuum the vacuum pipe at the same time inside and outside;

2). When the pressure sensor disposed in the vacuum pipe detects that the air pressure in the vacuum pipe reaches a predetermined rough vacuum pressure value, the external vacuuming device is automatically turned off, and the internal vacuuming device continues to operate;

3). When the air pressure in the vacuum pipe is lower than the preset vacuum pressure value of the vacuum pipe, close the internal vacuum system and the windshield is closed.

4) When the air pressure in the vacuum pipe rises to a preset fixed vacuum pressure value, the train can open the windshield in the deceleration state and restart the internal vacuuming device to balance the pressure rise of the vacuum pipe.