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Method for regulating roadbed heat convection in spring warping manner

A convective heat transfer and warping technology, applied in roads, roads, buildings, etc., can solve the problems of use, cost and operation and maintenance costs, the action unit is easily damaged, and the connecting rods are easy to fail, etc., so as to avoid adverse effects Impact, avoid harsh environment erosion and damage impact, wide range of use

Active Publication Date: 2017-09-26
俞祁浩
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AI Technical Summary

Problems solved by technology

In extremely harsh environments, the control and action units are not only vulnerable to damage, but also the connecting rods are prone to failure, resulting in the failure of the entire device
At the same time, the installation of the device needs to be drilled and punched separately on the ventilation pipe, which is cumbersome and inefficient
The existence of these problems has adversely affected the use, cost and operation and maintenance costs of the device to a large extent.
Another example: Yu Qihao (Yu Qihao, Cheng Guodong, He Naiwu. Control switch for heat insulation and cold transfer of ventilation pipes in roadbeds: China, 200520004195.3[P], 2006-9-13), Yu Qihao (Yu Qihao, Cheng Guodong, Ma Wei. Load-type hydraulic automatic temperature control ventilation device: China, 03218744.0 [P], 2004-8-18) designed hydraulic system, it is difficult to work effectively in the extreme environment of the Qinghai-Tibet Plateau

Method used

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  • Method for regulating roadbed heat convection in spring warping manner
  • Method for regulating roadbed heat convection in spring warping manner

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Embodiment Construction

[0026] Such as figure 1 , figure 2 As shown, a spring warping method for controlling subgrade convective heat transfer, the method refers to first fixing the shaft rod 2 on the wall of the ventilation pipe, and fitting the rotating shaft sleeve 3 on the shaft rod 2 Then damper 1 is fixed on the rotating shaft casing 3; Next, limiter 4 is set on the axis rod 2, and the center of the axis rod 2 is provided with memory alloy 5; Finally, gravity balance weight 6 is fixed on the shaft by chain rod 7 Damper 1 on.

[0027] in:

[0028] Memory alloy 5 refers to one of Ti Ni binary system, Ti Ni-X ternary system, Cu-based, and Fe-based shape memory alloys, and its control and setting temperature is -10°C~10°C.

[0029] Gravity balance block 6 refers to a kind of in metal, stone material, concrete.

[0030] The length of chain bar 7 is 10~20cm.

[0031] The working principle of the present invention is:

[0032] Memory alloy 5 has a relatively high modulus of elasticity in an env...

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Abstract

The invention relates to a method for regulating roadbed heat convection in spring warping manner. The method includes steps of firstly, fixing an axis rod on the pipe wall of a ventilating pipe, and sheathing a rotary shaft sleeve pipe on the axis rod; then fixing an air door on the rotary shaft sleeve pipe; secondly, arranging a spacer on the axis rod, and arranging a memory alloy in the center of the axis rod; finally, fixing a gravity balance block on the air door through a chain rod. The method has the advantages of simple structure, convenience in installation, high stability and wide using scale; the method can completely adapt to the extreme severe environment of the Tibet Plateau, meet the special requirements of project construction, and improve the cooling performance of the ventilating roadbed to the most extent.

Description

technical field [0001] The invention relates to the technical field of frozen soil engineering, in particular to a spring warping method for controlling convective heat transfer of a subgrade. Background technique [0002] In permafrost regions such as the Qinghai-Tibet Plateau and Northeast my country, through long-term evolution, development and changes, thick layers of underground ice with a thickness of several meters or even more than ten meters have been formed. With the change of climate environment and the impact of human engineering activities, the permafrost and underground ice degrade and melt, which leads to various engineering disasters and has an important impact on the stability of various major engineering buildings. [0003] Actively cooling the permafrost foundation through the adoption of engineering measures to protect permafrost is a key way to ensure the long-term safe operation and stability of permafrost engineering. Among these measures, effective c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/06
CPCE01C3/06
Inventor 俞祁浩
Owner 俞祁浩
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