An Internal Heating Device for Low Vacuum Tunnel Model Test

A tunnel model and internal heating technology, applied in the direction of heating elements, heating element shapes, ohmic resistance heating parts, etc., can solve problems such as the rise of the ambient temperature inside the tunnel, the influence of the main structure of the vacuum tunnel, etc., and achieve good test models and heating efficiency high effect

Active Publication Date: 2021-11-16
STATE KEY LAB OF SHIELD & TUNNELING TECH +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] When the train is running inside the low-vacuum tunnel, the severe friction between the residual air and the train will inevitably lead to an increase in the ambient temperature inside the tunnel, which will affect the main structure of the vacuum tunnel

Method used

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  • An Internal Heating Device for Low Vacuum Tunnel Model Test
  • An Internal Heating Device for Low Vacuum Tunnel Model Test
  • An Internal Heating Device for Low Vacuum Tunnel Model Test

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Embodiment Construction

[0030] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0031] Please refer to Figure 1 to Figure 4 , figure 1 A working principle diagram of a specific embodiment of the internal heating device of the low-vacuum tunnel model test provided by the present invention; figure 2 for figure 1 Schematic diagram of the structure of the internal heating device shown; image 3 for figure 1 A structural schematic diagram of an installation method of the infrared heating tube in the internal heating device shown; Figure 4 for figure 1 The structural schematic diagram of another installation method of the infrared heating tube in the internal heating device shown.

[0032] In a specific embodiment, the present invention...

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Abstract

The invention discloses an internal heating device for a model test of a low-vacuum tunnel, comprising: a vacuum pipeline, an infrared heating tube, a temperature sensor, a bracket, a temperature controller, a power regulator and a temperature collector; the bracket is an internal connection of the vacuum pipeline The frame of the polygonal body, a plurality of infrared heating tubes are arranged on the bracket, and the plurality of infrared heating tubes are evenly distributed around the axis of the vacuum pipeline; the temperature sensor is installed on the bracket through the connecting rod, and the temperature sensor is in contact with the inner wall of the vacuum pipeline; The temperature sensor transmits the actual temperature collected to the temperature controller, and the temperature controller adjusts the power regulator according to the actual temperature and the set temperature, thereby controlling the heating of the infrared heating tube; the temperature collector monitors and monitors the internal temperature of the vacuum pipe in real time. collection. The heating device effectively simulates the temperature rise inside the tunnel caused by the high-speed operation of the train, and provides a good test model.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to an internal heating device for a low-vacuum tunnel model test. Background technique [0002] As a new type of transportation system, the vacuum pipeline transportation system has the advantages of speed, convenience, safety, environmental protection and high efficiency. [0003] The maximum speed of high-speed vehicles operating in the dense atmosphere on the surface should not exceed 400km / h, and the use of vacuum pipeline transportation systems can effectively bridge the speed gap between high-speed rail and aviation. As the fifth type of transportation mode, it will form a powerful complement to the existing road transportation, railway transportation, water transportation and air transportation, and has broad application prospects and market value. [0004] When the train is running inside the low-vacuum tunnel, the severe friction between the residual air and the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/40H05B3/06
CPCH05B3/06H05B3/40
Inventor 周建军陈瑞祥洪开荣孙振川吕乾乾李凤远杨振兴张兵陈桥孙飞祥张合沛许华国王雅文郭璐任颖莹
Owner STATE KEY LAB OF SHIELD & TUNNELING TECH
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