Means for adjusting roadbed convective heat exchange in hairpin manner
A technology of convection heat transfer and card issuance, applied in roads, roads, buildings, etc., can solve problems such as difficulty in meeting actual engineering needs, increasing difficulty in processing and maintenance, and difficulty in operation and maintenance on the Qinghai-Tibet Plateau. Large-scale use, high-sensitivity effects
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[0029] Such as figure 1 , figure 2 As shown in Fig. 1, a hairpin-type measure for controlling subgrade convective heat transfer, the measure refers to first fixing the shaft rod 2 on the wall of the ventilation pipe, and connecting the rotating shaft sleeve 3 on the shaft rod 2; and then Fix the damper 1 on the rotating shaft sleeve 3; finally, set a support rod 5 at the center of the axis rod 2, and the support rod 5 is connected to one end of the hairpin telescopic tube 4 through the linker I6; the other end of the hairpin telescopic tube 4 One end is connected to damper 1 through linker II7.
[0030] Wherein: the hairpin telescopic tube 4 is made of metal or plastic with good stretchability and thermal conductivity and low temperature resistance, and its interior is filled with tap water or pure water.
[0031] The hairpin telescopic tubes 4 are respectively connected to the linker I6 and the linker II7 through seals.
[0032] The working principle of the present invent...
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