Heat pipe type solar photothermal device aiming at roadbed frost heave and roadbed frost heave prevention method
A heat pipe type, sunlight technology, which is applied to solar collectors, solar thermal energy, solar collectors and other directions using working fluids, can solve the problems such as the unsatisfactory effect of anti-frost heave measures for roadbeds, and achieve good solar irradiation conditions and improve Temperature level, the effect of preventing frost heave
Pending Publication Date: 2019-04-05
SHIJIAZHUANG TIEDAO UNIV
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[0010] In view of this, the embodiment of the present invention provides a heat pipe solar thermal device for roadbed frost heaving, to solve the problem that the effect of roadbed anti frost heaving measures in the prior art is not ideal
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[0043] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0044] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.
[0045] Such as figure 1 As shown, the heat pipe solar thermal device for subgrade frost heaving includes solar vacuum heat collection components for converting solar energy into heat energy, heat dissipation components for transferring heat, and heat dissipation compon...
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The invention is applicable to the technical field of roadbed engineering construction and maintenance, and provides a heat pipe type solar photothermal device aiming at roadbed frost heave, comprising a photothermal conversion tube, the photothermal conversion tube is sleeved with a light transmission tube, a vacuum cavity is formed between the photothermal conversion tube and the light transmission tube, two ends of the photothermal conversion tube are respectively connected with a first joint and a second joint, and an end cap is arranged on the first joint to form a seal at one end of thephotothermal conversion tube; one end of a thermal dissipation tube is connected with the second joint and is in communication with the photothermal conversion tube, the other end of the thermal dissipation tube is provided with a tapered guide cap, and the inside of the photothermal conversion tube and the inside of the thermal dissipation tube are filled with a first heat transfer medium; a first tube shell is located inside the photothermal conversion tube, a second tube shell is fixed in the inside of the thermal dissipation tube through a bracket, one end of the first tube shell and one end of the second tube shell are connected through a sealing piece, the inside of the first tube shell and the inside of the second tube shell are in conduction, and a second heat transfer medium is infused into the first tube shell and the second tube shell, so as to solve the problem that the effect of the frost heave prevention measures for the roadbed is not ideal.
Description
technical field [0001] The invention belongs to the technical field of roadbed engineering construction and maintenance, and in particular relates to a heat pipe type solar thermal device for roadbed frost heaving and a method for preventing roadbed frost heaving. Background technique [0002] An important feature of the surface soil in seasonally frozen regions is the phenomenon of freezing in winter and thawing in spring due to the seasonal positive and negative changes in temperature. The phenomenon of winter freezing and spring thawing of soil is essentially a solid-liquid phase transition process of water in the soil. Because the density of water in the solid phase and liquid phase is different, the volume of the same mass of water in the solid phase is 9% larger than that in the liquid phase. %, the soil will expand under the condition of negative temperature. Therefore, in some areas with abundant precipitation, abundant groundwater, dense soil and large seasonal tem...
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IPC IPC(8): E01C3/06E01C11/26F24S10/40F24S10/70F24S10/95F24S80/00
CPCE01C3/06E01C11/26
Inventor 胡田飞王天亮何亚梦卢玉婷刘建勇冯卓鑫尹赵爱
Owner SHIJIAZHUANG TIEDAO UNIV
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