Green and environment-friendly equipment for automatically adjusting seasonal frozen soil by using atmospheric temperature

Abstract

The utility model relates to green and environment-friendly equipment for automatically adjusting seasonal frozen soil by using atmospheric temperature. The green and environment-friendly equipment comprises an energy device, a cold and hot energy exchange device and a host machine, the energy device comprises a solar photovoltaic panel and a storage battery, and the solar photovoltaic panel is connected with the storage battery; the cold and heat energy exchange device comprises a first cold and heat exchange pipe used for being arranged above a soil layer and a second cold and heat exchange pipe used for being arranged in the soil layer, the first cold and heat exchange pipe is connected with the second cold and heat exchange pipe, and the first cold and heat exchange pipe and the second cold and heat exchange pipe form a closed-loop circulation loop. A refrigerant medium is arranged in the closed-loop circulation loop, and an electromagnetic valve and a pipeline pump are arranged on the first cold and heat exchange pipe; the main machine is used for controlling starting or stopping of the electromagnetic valve and the pipeline pump. The storage battery is used for supplying power to the main machine, the electromagnetic valve and the pipeline pump. The device can operate automatically, and a large amount of manpower, material resources and financial resources are reduced.

Description

Technical Field

[0001] The utility model relates to frozen soil regulating equipment, in particular to green and environment-friendly equipment which utilizes atmospheric temperature to automatically regulate seasonal frozen soil. Background Art

[0002] Under the influence of external factors such as engineering construction activities and climate warming, the permafrost temperature rises and degrades, absorbs heat and melts, causing the permafrost roadbed to produce thaw settlement deformation exceeding the meter level. Long-term research and observation have shown that roadbed deformation in permafrost areas generally consists of the following three aspects: roadbed fill deformation, seasonal thaw deformation of the roadbed base, and permafrost thaw deformation. On the other hand, observation data show that under the influence of warming and humidification, the degradation of permafrost has accelerated, and the increase in liquid water reserves within the road area has reached a historical extreme. The problems of hydrothermal erosion and the softening of the freeze-thaw active layer are prominent, especially for highways. The large-scale effects of high roadbed heat storage, wide roadbed heat accumulation, and thick road surface heat absorption and the role of heat blanket have caused the base heat absorption to increase by more than 10 times compared with secondary roads, and the risk of thermal thaw deformation is more prominent. Thaw settlement prevention and control has become a recognized global problem.

[0003] At present, in order to ensure that the seasonal frozen soil layer is in a controllable state, the main technical measures adopted are as follows: stone slope protection, sunshade roadbed, stone cooling layer and pipe ventilation.

[0004] The technical means used in dealing with seasonal frozen soil, such as stone slope protection, sunshade roadbed, stone cooling layer, and pipe ventilation, not only waste a lot of manpower, material and financial resources, but these methods can only appropriately reduce the temperature of the roadbed, and cannot fundamentally solve the freeze-thaw cycle of seasonal frozen soil, which brings problems to civil engineering, such as frost heave, thaw settlement, and slurry. Utility Model Content

[0005] The main purpose of the utility model is to provide a green and environment-friendly equipment which can automatically adjust seasonal frozen soil by utilizing atmospheric temperature and can operate automatically and reduce a large amount of manpower, material resources and financial resources.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A green and environmentally friendly device for automatically regulating seasonal frozen soil using atmospheric temperature, comprising an energy device, a cold and hot energy exchange device and a host;

[0008] The energy device includes a solar photovoltaic panel and a battery, and the photovoltaic panel is connected to the battery;

[0009] The heat and cold energy exchange device comprises a first heat and cold exchange tube for being arranged above the soil layer and a second heat and cold exchange tube for being arranged in the soil layer, the first heat and cold exchange tube is connected to the second heat and cold exchange tube, the first heat and cold exchange tube and the second heat and cold exchange tube form a closed-loop circulation loop, a refrigerant medium is arranged in the closed-loop circulation loop, and a solenoid valve and a pipeline pump are arranged on the first heat and cold exchange tube;

[0010] The host is used to control the start or stop of the solenoid valve and the pipeline pump;

[0011] The storage battery is used to supply power to the main engine, the solenoid valve and the pipeline pump.

[0012] Furthermore, it also includes a third heat exchange tube, which is a plurality of U-shaped tubes connected end to end, the outlet end of the third heat exchange tube is connected to the inlet end of the first heat exchange tube, and the inlet end of the third heat exchange tube is connected to the outlet end of the first heat exchange tube, and the refrigerant medium enters the third heat exchange tube through the first heat exchange tube to exchange heat with the outside atmosphere.

[0013] Furthermore, it also includes a sunshade for being arranged on the roadbed, a solar photovoltaic panel is arranged above the sunshade; and the third cold and heat exchange tube is fixed below the sunshade.

[0014] The periphery of the first cold and heat exchange tube is provided with heat insulation material.

[0015] The second heat exchange tube includes a sleeve, a spiral tube is sealed inside the sleeve, both ends of the spiral tube extend out of the sleeve and are connected to the third heat exchange tube through the first heat exchange tube respectively, and a refrigerant medium is provided between the sleeve and the spiral tube.

[0016] The third heat exchange tube is a copper tube, an aluminum tube or a stainless steel tube; the first heat exchange tube is a steel tube or an oil tube wrapped with insulation material; the spiral tube in the second heat exchange tube is a copper tube, the sleeve is a steel tube, and the bottom of the sleeve is conical.

[0017] Furthermore, it also includes a first temperature sensor for detecting the temperature of the soil layer outside the second cold and heat exchange tube and a second temperature sensor for detecting the temperature of the third cold and heat exchange tube at the bottom of the sunshade, and the first temperature sensor and the second temperature sensor send the detected data to the host;

[0018] When the host receives a temperature detected by the second temperature sensor that is lower than the temperature detected by the first temperature sensor, the host controls the electromagnetic valve to open and runs the pipeline pump;

[0019] When the host receives a temperature greater than or equal to the temperature detected by the first temperature sensor, the host controls the electromagnetic valve to close and stops the operation of the pipeline pump.

[0020] The refrigerant medium is a liquid substance with a liquefaction temperature of -30°C to -60°C and a vaporization temperature greater than 70°C.

[0021] The utility model also provides a use of a green and environmentally friendly device for automatically adjusting seasonal frozen soil using atmospheric temperature on a roadbed. Along the length direction of the roadbed, the second heat exchange tube is buried in the soil layer every 3-5 meters on both sides of the roadbed, and the buried depth of the second heat exchange tube is 1-5 meters.

[0022] A heat insulation board is provided under the covering soil layer, and the second heat exchange pipe is located below the heat insulation board.

[0023] By means of the above technical solution, the utility model has at least the following advantages:

[0024] The utility model fully utilizes solar energy and cold air in the atmosphere, and the entire equipment belongs to green environmental protection and nationally advocated technology industry; the entire set of equipment of the utility model can realize automatic operation, reducing a large amount of manpower, material resources and financial resources; the utility model is convenient to construct, and has low requirements on the quality of construction and installation workers; the utility model can be installed on road slope protection, which can prevent sunlight during the day and reduce the heat energy storage of the roadbed, and can ensure the normal operation of the equipment at low temperatures at night, integrating multiple functions in one.

[0025] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of a green and environmentally friendly device for automatically regulating seasonal frozen soil using atmospheric temperature provided by an embodiment of the utility model;

[0027] Figure 2 The utility model embodiment provides Figure 1 AA section view;

[0028] Figure 3 It is a structural schematic diagram of the third cold and heat exchange tube provided in an embodiment of the utility model.

[0029] In the figure:

[0030] 1-energy device; 2-cold and hot energy exchange device; 3-host, 4-solar photovoltaic panel; 5-soil layer; 6-first cold and hot exchange tube; 7-second cold and hot exchange tube; 8-refrigerant medium; 9-solenoid valve; 10-pipeline pump; 11-third cold and hot exchange tube; 12-sunshade; 13-insulation material; 14-sleeve; 15-spiral tube; 16-insulation board; 17-covering soil layer. DETAILED DESCRIPTION

[0031] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the specific implementation method, structure, features and effects of the utility model are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0032] like Figure 1 As shown, a green and environmentally friendly device for automatically regulating seasonal frozen soil using atmospheric temperature comprises an energy device 1, a cold and hot energy exchange device 2 and a host 3;

[0033] The energy device 1 includes a solar photovoltaic panel 4 and a battery, and the solar photovoltaic panel 4 is connected to the battery;

[0034] The cold and hot energy exchange device 2 includes a first cold and hot exchange tube 6 for being arranged above the soil layer 5 and a second cold and hot exchange tube 7 for being arranged in the soil layer 5. The first cold and hot exchange tube 6 is connected to the second cold and hot exchange tube 7. The first cold and hot exchange tube 6 and the second cold and hot exchange tube 7 form a closed-loop circulation circuit. A refrigerant medium 8 is arranged in the closed-loop circulation circuit. A solenoid valve 9 and a pipeline pump 10 are arranged on the first cold and hot exchange tube 6.

[0035] The host 3 is used to control the start or stop of the solenoid valve 9 and the pipeline pump 10; monitor the temperature change of the seasonal frozen soil layer and the equipment operation status in real time;

[0036] The battery is used to supply power to the host 3 , the solenoid valve 9 and the pipeline pump 10 .

[0037] The utility model utilizes the first cold and heat exchange tube to absorb cold in the air, and then transmits it to the frozen soil layer through the second cold and heat exchange tube. The second cold and heat exchange tube can directly exchange cold and heat with the seasonal frozen soil layer, refreeze the soil layer that melts during the day in the frozen soil layer, prevent the melted soil layer from further penetrating under the road surface, and ensure the stability of the roadbed.

[0038] See also Figure 1 and Figure 2, and also includes a third heat exchange tube 11. The third heat exchange tube 11 is a plurality of U-shaped tubes connected end to end, and can also be a serpentine tube. The outlet end of the third heat exchange tube 11 is connected to the inlet end of the first heat exchange tube 6, and the inlet end of the third heat exchange tube 11 is connected to the outlet end of the first heat exchange tube 6. The refrigerant medium 8 enters the third heat exchange tube 11 through the first heat exchange tube 6 to exchange heat with the outside atmosphere.

[0039] The third heat exchange tube is configured as a plurality of U-shaped tubes or serpentine tubes connected end to end, which increases the area of ​​the third heat exchange tube to absorb cold air, can quickly exchange heat with the atmosphere, and transfer it to the underground soil layer.

[0040] See also Figure 2 , and also includes a sunshade 12 for being set on the roadbed, a solar photovoltaic panel 4 is arranged above the sunshade 12; a third cold and heat exchange tube 11 is fixed below the sunshade 12.

[0041] The utility model can utilize the sunshade support structure on the roadside to install the solar photovoltaic panel and fix the third cold and heat exchange tube, can obtain materials locally, and is simple to construct.

[0042] See also Figure 1 , a heat insulating material 13 is provided on the periphery of the first cold and heat exchange tube 6. A solenoid valve 9 and a pipeline pump 10 are provided on the first cold and heat exchange tube 6;

[0043] The first heat exchange tube is wrapped with insulation material to prevent the heat of the third heat exchange tube from being transferred to the first heat exchange tube when the solenoid valve and pipeline pump are closed, thereby increasing the temperature of the soil layer and being detrimental to the thermal stability of the frozen soil layer. The setting of the insulation material prevents the transfer of heat energy in the atmosphere to the interior of the seasonal frozen soil layer through the third heat exchange tube.

[0044] See also Figure 3 The second heat exchange tube 7 includes a sleeve 14, in which a spiral tube 15 is sealed. Both ends of the spiral tube 15 extend out of the sleeve 14 and are connected to the third heat exchange tube 11 through the first heat exchange tube 6. A refrigerant medium 8 is provided between the sleeve 14 and the spiral tube 15.

[0045] The second heat exchange tube of the utility model includes a sleeve, which is buried in the soil layer. Compared with the tube buried in the soil layer, the sleeve of the utility model protects the spiral tube, which is easy to construct and can prevent damage by materials such as gravel in the soil layer, thereby extending the service life of the second heat exchange tube. When heat exchange is performed, the refrigerant medium in the spiral tube transfers the absorbed cold through the spiral tube to the refrigerant medium provided between the sleeve and the spiral tube, and then transfers it to the soil layer through the sleeve.

[0046] See also Figure 1 and Figure 2In order to achieve rapid exchange of cold, the third heat exchange tube 11 is a copper tube, aluminum tube or stainless steel tube; the first heat exchange tube 6 is a steel tube or oil tube wrapped with heat insulation material; the spiral tube 15 in the second heat exchange tube 7 is a copper tube, and the sleeve 14 is a steel tube for rapid heat exchange with the soil layer. The bottom of the sleeve 14 is conical, which is easy to bury in the soil layer.

[0047] Furthermore, it also includes a first temperature sensor for detecting the temperature of the soil layer outside the second cold and heat exchange tube and a second temperature sensor for detecting the temperature of the third cold and heat exchange tube at the bottom of the sunshade, the first temperature sensor and the second temperature sensor send the detected data to the host 3; the first temperature sensor is placed close to the second cold and heat exchange tube. The first temperature sensor can also be placed inside the sleeve to detect the temperature of the refrigerant in the sleeve.

[0048] When the host 3 receives data that the temperature (T1) of the third cold and heat exchange tube 11 is less than the soil layer temperature (T2), the solenoid valve 9 is controlled to be opened, and the pipeline pump 10 is operated; specifically, when the host receives data detected by the second temperature sensor is less than the data detected by the first temperature sensor, the solenoid valve is controlled to be opened, and the pipeline pump is operated;

[0049] When the host 3 receives data that the temperature (T1) of the third heat exchange tube 11 is greater than or equal to the soil layer temperature (T2), that is, when the host receives data detected by the second temperature sensor greater than or equal to the data detected by the first temperature sensor, it controls the closing of the solenoid valve 9 and stops the operation of the pipeline pump 10.

[0050] The utility model controls the operation of the electromagnetic valve and the pipeline pump through the temperature difference between the inside and outside of the soil layer, so as to achieve the purpose of transferring the coldness in the air to the soil layer.

[0051] Preferably, the refrigerant 8 is a liquid substance with a liquefaction temperature of -30°C to -60°C and a vaporization temperature greater than 70°C. Preferably, it is ethylene glycol antifreeze, propylene glycol, glycerol, liquid nitrogen, and an antifreeze with good fluidity, heat capacity stability and corrosion resistance is selected.

[0052] The utility model also provides a use of a green and environmentally friendly device for automatically adjusting seasonal frozen soil using atmospheric temperature on a roadbed. Along the length direction of the roadbed, the second heat exchange tube is buried in the soil layer every 3-5 meters on both sides of the roadbed, and the buried depth of the second heat exchange tube is 1-5 meters.

[0053] The roadbed includes a covering soil layer 16, and a heat insulation board 17 is arranged inside the covering soil layer 16. The second heat exchange pipe 7 is located below the heat insulation board 17 to prevent the heat above the heat insulation board from being transferred to the soil layer.

[0054] The working principle of this utility model:

[0055] When the temperature of the seasonal frozen soil layer is lower than or equal to the temperature of the open air, the power supply is automatically disconnected, the solenoid valve and pipeline pump are closed, and the main engine stops working to prevent the heat in the open air from being transferred to the seasonal frozen soil layer and causing the soil layer to melt;

[0056] When the temperature of the seasonal frozen soil layer is higher than the outdoor temperature, the power is automatically turned on, the solenoid valve and pipeline pump are turned on, and the main machine starts to work, transferring the heat in the frozen soil layer to the outdoor air to achieve the purpose of freezing the soil layer. The above work is repeated in a reciprocating cycle.

[0057] Specifically, in the green and environmentally friendly equipment of the utility model, the spiral tubes of the third cold and heat exchange tube, the first cold and heat exchange tube and the second cold and heat exchange tube are connected to form a closed-loop circulation circuit, and a refrigerant medium is installed in the closed-loop circulation tube. When the temperature in the seasonal frozen soil layer is higher than the temperature of the third cold and heat exchange tube, the refrigeration mode is turned on, and the cold energy in the atmosphere is continuously transferred to the first cold and heat exchange tube through the third cold and heat exchange tube, and then transferred to the seasonal frozen soil layer. The cold and heat exchange tube buried in the seasonal frozen soil layer is used to cool the seasonal frozen soil layer, so as to increase the cold storage of the seasonal frozen soil itself and improve the thermal stability of the seasonal frozen soil. The utility model can operate automatically, and the structural design is simple and reasonable, which greatly reduces the investment of manpower, material resources and financial resources.

[0058] The above description is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A green and environmentally friendly device that automatically adjusts seasonal frozen soil using atmospheric temperature, characterized in that: Including energy device, hot and cold energy exchange device and host; The energy device includes a solar photovoltaic panel and a battery, and the solar photovoltaic panel is connected to the battery; The heat and cold energy exchange device comprises a first heat and cold exchange tube for being arranged above the soil layer and a second heat and cold exchange tube for being arranged in the soil layer, the first heat and cold exchange tube is connected to the second heat and cold exchange tube, the first heat and cold exchange tube and the second heat and cold exchange tube form a closed-loop circulation loop, a refrigerant medium is arranged in the closed-loop circulation loop, and a solenoid valve and a pipeline pump are arranged on the first heat and cold exchange tube; The host is used to control the start or stop of the solenoid valve and the pipeline pump; The storage battery is used to supply power to the main engine, the solenoid valve and the pipeline pump.

2. The green and environmentally friendly equipment for automatically adjusting seasonal frozen soil using atmospheric temperature according to claim 1, characterized in that: It also includes a third cold-heat exchange tube, which is a plurality of U-shaped tubes connected end to end, the outlet end of the third cold-heat exchange tube is connected to the inlet end of the first cold-heat exchange tube, and the inlet end of the third cold-heat exchange tube is connected to the outlet end of the first cold-heat exchange tube, and the refrigerant medium enters the third cold-heat exchange tube through the first cold-heat exchange tube to exchange heat with the outside atmosphere.

3. The green and environmentally friendly equipment for automatically adjusting seasonal frozen soil using atmospheric temperature according to claim 2, characterized in that: It also includes a sunshade for being arranged on the roadbed, a solar photovoltaic panel is arranged above the sunshade; and the third cold and heat exchange tube is fixed below the sunshade.

4. The green and environmentally friendly device for automatically adjusting seasonal frozen soil using atmospheric temperature according to claim 3 is characterized in that: The periphery of the first cold and heat exchange tube is provided with heat insulation material.

5. The green and environmentally friendly device for automatically adjusting seasonal frozen soil using atmospheric temperature according to claim 4, characterized in that: The second heat exchange tube includes a sleeve, a spiral tube is sealed inside the sleeve, both ends of the spiral tube extend out of the sleeve and are connected to the third heat exchange tube through the first heat exchange tube respectively, and a refrigerant medium is provided between the sleeve and the spiral tube.

6. The green and environmentally friendly equipment for automatically regulating seasonal frozen soil using atmospheric temperature according to claim 5, characterized in that: The third heat exchange tube is a copper tube, an aluminum tube or a stainless steel tube; the first heat exchange tube is a steel tube or an oil tube wrapped with insulation material; the spiral tube in the second heat exchange tube is a copper tube, the sleeve is a steel tube, and the bottom of the sleeve is conical.

7. The green and environmentally friendly equipment for automatically regulating seasonal frozen soil using atmospheric temperature according to claim 6, characterized in that: It also includes a first temperature sensor for detecting the temperature of the soil layer outside the second cold and heat exchange tube and a second temperature sensor for detecting the temperature of the third cold and heat exchange tube at the bottom of the sunshade, and the first temperature sensor and the second temperature sensor send the detected data to the host; When the host receives a temperature detected by the second temperature sensor that is lower than the temperature detected by the first temperature sensor, the host controls the electromagnetic valve to open and runs the pipeline pump; When the host receives a temperature greater than or equal to the temperature detected by the first temperature sensor, the host controls the electromagnetic valve to close and stops the operation of the pipeline pump.

8. A green and environmentally friendly device for automatically regulating seasonal frozen soil using atmospheric temperature according to any one of claims 1 to 7, characterized in that: The refrigerant medium is a liquid substance with a liquefaction temperature of -30°C to -60°C and a vaporization temperature greater than 70°C.

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