Low-pressure pipeline for magnetic suspension train
A low-pressure pipeline and magnetic levitation technology, applied in the field of low-pressure pipelines, can solve problems such as increased aerodynamic resistance of the car body, and achieve the effect of reducing air pressure changes
Active Publication Date: 2016-07-06
SOUTHWEST JIAOTONG UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a low-pressure pipeline for magnetic levitation vehicles to solve the problem that the aerodynamic resistance of the vehicle body increases with the change of airflow movement when the magnetic levitation vehicle passes through the low-pressure pipeline
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] The present invention will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.
[0021] Aiming at the fact that the air flow in the low-pressure pipeline for maglev vehicles has a great influence on the resistance of the vehicle body, and there is no equipment for slowing down the train resistance at present, the invention provides a low-pressure pipeline for maglev vehicles.
[0022] The top and / or sides of the main body of the low-pressure pipeline are provided with a plurality of shaft pipes, the shaft pipes communicate with the main body of the low-pressure pipe, the inner wall is smooth, and the inside is in a low-pressure state. A plurality of shaft pipes are arranged on the top and / or side of the main body of the low-pressure pipe, and both the shaft pipes and the main body of the low-pressure pipe are in a low-pressure state. When the train runs at high speed in the main body of the low-pressure pipeli...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the magnetic suspension train technology, in particular to a low-pressure pipeline for a magnetic suspension train. A plurality of vertical shaft pipelines are arranged on the top and / or the side face of a low-pressure pipeline body and communicate with the low-pressure pipeline body. The inner walls of the vertical shaft pipelines and the inner wall of the low-pressure pipeline body are smooth, and the interior of the vertical shaft pipelines and the interior of the low-pressure pipeline body are in a low-pressure state. According to the low-pressure pipeline, the vertical shaft pipelines are arranged on the top and / or the side face of the low-pressure pipeline body, and the interior of the vertical shaft pipelines and the interior of the low-pressure pipeline body are both in the low-pressure state. When the train runs in the low-pressure pipeline body with low air pressure at a high speed, compression waves generated by the train head are spread forwards, and part of the compression waves are reflected by the pipeline wall in an expansion wave way. When the train passes through the vertical shaft pipelines, compression waves are generated again and can counteract with the reflected expansion waves, micro-pressure waves are weakened, and changes of air pressure on the surface of the train are reduced. The influence of airflow movement on stable operation of a train body is wholly weakened.
Description
technical field [0001] The invention relates to the magnetic levitation vehicle technology, in particular to a low-pressure pipeline used for the magnetic levitation vehicle. Background technique [0002] Since the concept of the vacuum pipeline transportation system was proposed, a large number of patents and academic papers at home and abroad have carried out detailed design of this new system. The patent "Vacuumtube transportation system-consists of carriages running on rails invacuum" describes a transportation system that combines vacuum tubes and rail trains; the patent "Evacuated tube transport system with interchange capability" proposes to run high-temperature superconducting maglev trains in low-pressure pipelines; the patent "external thin-walled vacuum tubes for power systems "Maglev transportation system" provides a vacuum pipeline with a smaller wall thickness, and arranges linear motors, track suspension mechanisms and other equipment outside the pipeline. Mo...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B61B13/10
CPCB61B13/10
Inventor 邓自刚王博钱楠李基鹏
Owner SOUTHWEST JIAOTONG UNIV