Solar hot rod with automatic cooling and adjusting functions

By integrating components such as evaporators, condensers and heat sinks into solar thermal rods, the thermal stability of the frozen soil roadbed is solved by using temperature difference energy and solar photothermal energy, and the continuous cooling of the frozen soil layer and the efficient utilization of solar energy resources are achieved. .

CN222187375UActive Publication Date: 2024-12-17NORTHWEST RES INST CO LTD OF C R E C +2
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Patent Information

Application Number
CN202420332551.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-22
Publication Date
2024-12-17
Estimated Expiration
2034-02-22

AI Technical Summary

Technical Problem

When using solar energy resources in the prior art, it is difficult to effectively maintain the thermal stability of the frozen soil roadbed and foundation, resulting in low utilization of solar energy resources.

Method used

A solar heat rod with automatic cooling and regulation function was designed, including an evaporator, condenser, solar radiator and solar heat collector. It evaporates into vapor through the liquid coolant in the evaporator and condenses into liquid in the condenser tube. It also uses adsorbents and heat sinks for heat exchange to achieve circulating cooling of refrigerants, and makes full use of the temperature difference energy and solar photothermal energy of the Qinghai-Tibet Plateau.

Benefits of technology

The continuous and stable cooling of the permafrost layer is achieved, the thermal stability of the permafrost roadbed and foundation is ensured throughout the season, the utilization rate of solar energy resources is improved, and the flexible assembly structure is convenient for disassembly and maintenance.

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Abstract

The utility model discloses a solar hot bar with an automatic cooling and adjusting function, which comprises an evaporator, a condenser is arranged above the evaporator, and a solar radiator is arranged above the condenser. By arranging the evaporator, the condenser, the solar radiator and the solar heat collector, when the solar heat bar works, a liquid coolant in the evaporator absorbs heat and is evaporated into vapor cooling liquid, and the vapor cooling liquid ascends to enter a condensation pipe and is cooled and condensed into the liquid coolant through a first outer cooling fin to flow back into the evaporator; meanwhile, a part of the vapor-state refrigerant is desorbed by the heated adsorbate in the second base tube, and then the desorbed vapor-state refrigerant molecules are subjected to sufficient heat dissipation in the solar radiator and then are subjected to phase change to form a liquid-state refrigerant subjected to circulating cooling to flow back into the evaporator; therefore, solar energy resources of the Qinghai-Tibet Plateau are fully utilized to continuously, stably and automatically reduce the temperature in the frozen soil layer, and the thermal stability of the permafrost roadbed and the foundation is effectively maintained in all seasons.
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Description

Technical Field

[0001] The utility model relates to the technical field of solar thermal rods, in particular to a solar thermal rod with an automatic temperature reduction and regulation function. Background Art

[0002] The Qinghai-Tibet Plateau is the largest plateau in China and the highest in the world. Due to its high altitude, few clouds, thin air and good atmospheric transparency, it receives more solar radiation and has longer sunshine time. This situation makes the Qinghai-Tibet Plateau have the richest solar energy resources. At the same time, the Qinghai-Tibet Plateau also has permafrost, which affects the safety of roadbeds and foundations. In order to improve the safety and stability of permafrost roadbeds, technicians inserted solar thermal rods next to the permafrost roadbeds.

[0003] However, the existing technical solutions have low utilization rates of solar energy resources during application, and there is a technical problem that solar energy resources cannot be fully utilized to effectively maintain the thermal stability of permafrost roadbeds and foundations. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a solar thermal rod with automatic temperature adjustment function, which can solve the technical problems of low utilization rate of solar energy resources and failure to fully utilize solar energy resources to effectively maintain the thermal stability of permafrost roadbed and foundation.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: a solar thermal rod with automatic temperature reduction and regulation function, comprising an evaporator, a condenser is arranged above the evaporator, a solar radiator is arranged above the condenser, a solar collector is arranged above the solar radiator, a second base tube is arranged inside the solar collector, a first base tube is arranged inside the solar radiator, a condensing tube is arranged inside the condenser, a gas guide tube is arranged inside the first base tube, a connecting tube is arranged inside the second base tube, and an adsorbent is arranged between the outside of the connecting tube and the inside of the second base tube.

[0006] As a preferred technical solution of the utility model, a first external heat sink is arranged outside the condenser tube, and the first external heat sink is spiral-shaped.

[0007] As a preferred technical solution of the utility model, an inner heat sink is arranged outside the gas guide tube, and a second outer heat sink is arranged outside the first base tube, and the inner heat sink and the second outer heat sink are spirally shaped.

[0008] As a preferred technical solution of the utility model, a solar heat absorption film is arranged on the outside of the second base tube, a transparent insulation tube is arranged on the outside of the solar heat absorption film, an end cover is arranged on the top end of the second base tube, and partitions are evenly arranged on the outside of the connecting tube.

[0009] As a preferred technical solution of the utility model, a reducer is provided at the bottom end of the first base tube, a shrink tube is provided at the bottom end of the second base tube, and a sealing gasket is provided outside the shrink tube at the bottom end of the second base tube.

[0010] As a preferred technical solution of the utility model, the bottom end of the reducer is inserted into the top end of the condenser tube, and the bottom end of the shrink tube is inserted into the top end of the first base tube.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. By providing an evaporator, a condenser, a solar radiator and a solar collector, the solar heat rod is inserted into the evaporator in the frozen soil layer during operation, and the liquid coolant inside the evaporator absorbs heat and evaporates into a vapor coolant. The vapor coolant rises into the condenser tube and dissipates heat through the first outer heat sink, condenses into a liquid coolant and flows back into the evaporator. At the same time, a part of the vapor coolant is adsorbed by the adsorbent at room temperature in the second base tube. The adsorbent saturated with adsorption heat absorbs the solar heat and heats up to decompose the coolant. Subsequently, the decomposed vapor coolant molecules enter the first base tube, and after being fully dissipated through the inner heat sink and the second outer heat sink, they are phase-changed into a liquid coolant after circulating cooling and flow back into the evaporator, thereby making full use of the abundant temperature difference energy and solar thermal energy of the Qinghai-Tibet Plateau to achieve a continuous and stable automatic reduction of the temperature in the frozen soil layer, so that the frozen soil layer remains at a low temperature, thereby effectively maintaining the thermal stability of the permafrost roadbed and foundation in all seasons;

[0013] 2. By providing a shrink tube, a reducer and a sealing gasket, the shrink tube is inserted and fixed inside the first base tube during use, and the plug-in joint is sealed by the sealing gasket, so that the solar collector and the solar radiator can be firmly and tightly connected, and the reducer provided at the bottom of the first base tube is inserted into the interior of the condenser tube, so that the solar radiator and the condenser can be fixedly connected, thereby achieving the purpose of convenient, fast, stable and tight assembly of the solar thermal rod, and is easy to disassemble and repair, and has strong operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the solar thermal rod of the utility model;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the solar thermal rod of the utility model;

[0016] Figure 3 This is a schematic diagram of the explosion structure of the solar thermal rod of the utility model;

[0017] Figure 4 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] Among them: 1. evaporator; 2. condenser; 3. solar radiator; 4. shrink tube; 5. solar collector; 6. condenser tube; 7. first base tube; 8. gas guide tube; 9. second base tube; 10. connecting tube; 11. adsorbent; 12. inner heat sink; 13. first outer heat sink; 14. second outer heat sink; 15. partition; 16. end cover; 17. transparent insulation tube; 18. solar heat absorption film; 19. sealing gasket; 20. reducer. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified. Example

[0020] Please refer to Figure 1-4As shown, the utility model provides a solar thermal rod with automatic temperature reduction and regulation function, including an evaporator 1, a condenser 2 is arranged above the evaporator 1, a solar radiator 3 is arranged above the condenser 2, a solar collector 5 is arranged above the solar radiator 3, a second base tube 9 is arranged inside the solar collector 5, a first base tube 7 is arranged inside the solar radiator 3, a condenser tube 6 is arranged inside the condenser 2, a first spiral outer heat sink 13 is arranged outside the condenser tube 6, a gas guide tube 8 is arranged inside the first base tube 7, a spiral inner heat sink 12 is arranged outside the gas guide tube 8, a second spiral outer heat sink 14 is arranged outside the first base tube 7, the analyzed refrigerant is fully cooled into liquid refrigerant by the inner heat sink 12 and the second outer heat sink 14 and refluxes to the inside of the evaporator 1, and the ... A connecting pipe 10 is arranged inside, and an adsorbent 11 is arranged between the outside of the connecting pipe 10 and the inside of the second base pipe 9. The gaseous refrigerant entering the second base pipe 9 is adsorbed by the adsorbent 11, and the adsorbent 11, which is saturated with adsorption, heats up and resolves the refrigerant after absorbing solar heat. A solar heat absorption film 18 is arranged outside the second base pipe 9, and the solar heat absorption film 18 absorbs solar heat. A transparent insulation pipe 17 is arranged outside the solar heat absorption film 18, and the second base pipe 9 is insulated by the transparent insulation pipe 17. An end cap 16 is arranged at the top of the second base pipe 9, and partitions 15 are evenly arranged outside the connecting pipe 10, so as to make full use of the abundant temperature difference energy and solar thermal energy of the Qinghai-Tibet Plateau to achieve the continuous and stable automatic reduction of the temperature in the frozen soil layer, so that the frozen soil layer is kept at a low temperature, thereby effectively maintaining the thermal stability of the permafrost roadbed and foundation in all seasons;

[0021] When the solar heat rod is working, the liquid coolant in the evaporator 1 inserted into the frozen soil layer absorbs heat and evaporates into vapor coolant. The vapor coolant rises into the condenser tube 6 and dissipates heat through the first outer heat sink 13, condenses into liquid coolant and flows back to the evaporator 1. At the same time, a part of the vapor refrigerant is adsorbed by the adsorbent 11 at room temperature in the second base tube 9. The adsorbent 11, which is saturated with adsorption, heats up and decomposes the refrigerant after absorbing the solar heat. Subsequently, the decomposed vapor refrigerant molecules enter the first base tube 7, dissipate heat through the inner heat sink 12 and the second outer heat sink 14, and then change into liquid refrigerant after circulating cooling and flows back to the evaporator 1.

[0022] As a further implementation of this embodiment, Figure 1-4As shown, a reducer 20 is provided at the bottom end of the first base tube 7, and the bottom end of the reducer 20 is inserted into the top end of the condenser tube 6. The reducer 20 arranged at the bottom of the first base tube 7 is inserted into the inside of the condenser tube 6, so that the solar radiator 3 and the condenser 2 can be fixedly connected, and a shrink tube 4 is provided at the bottom end of the second base tube 9. A sealing gasket 19 is provided outside the shrink tube 4 at the bottom end of the second base tube 9. The bottom end of the shrink tube 4 is inserted into the top end of the first base tube 7. The shrink tube 4 is inserted and fixed inside the first base tube 7, so that the solar collector 5 and the solar radiator 3 can be firmly and tightly connected, and the plug-in joint is sealed by the sealing gasket 19, so as to realize the purpose of assembling the solar thermal rod conveniently, quickly, firmly and tightly, and it is easy to disassemble and repair, and has strong operability.

[0023] Specific working principle:

[0024] When using the solar thermal rod, first, the shrink tube 4 is inserted and fixed inside the first base tube 7, and the plug-in joint is sealed by the sealing gasket 19, so that the solar collector 5 and the solar radiator 3 can be firmly sealed and connected, and the reducer 20 arranged at the bottom of the first base tube 7 is inserted into the inside of the condenser tube 6, so that the solar radiator 3 and the condenser 2 can be fixedly connected, so that the solar thermal rod can be assembled conveniently, quickly, firmly and tightly, and the evaporator 1 is inserted into the frozen soil layer to absorb the heat in the frozen soil layer, so that the liquid coolant in the evaporator 1 absorbs heat and evaporates into a vapor state. The coolant, the vapor coolant rises into the condenser tube 6 and dissipates heat through the first outer heat sink 13, condenses into liquid coolant and flows back to the evaporator 1. At the same time, a part of the vapor refrigerant is adsorbed by the adsorbent 11 at room temperature in the second base tube 9. The adsorbent 11, which is saturated with adsorption, heats up and decomposes the refrigerant after absorbing the heat from the sun. Subsequently, the decomposed vapor refrigerant molecules enter the first base tube 7, dissipate sufficient heat through the inner heat sink 12 and the second outer heat sink 14, and then change into the liquid refrigerant after circulating cooling and flow back to the evaporator 1, thereby maintaining the low temperature in the frozen soil layer and maintaining the stability of the roadbed foundation.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A solar thermal rod with automatic temperature reduction and regulation function, comprising an evaporator (1), characterized in that: A condenser (2) is arranged above the evaporator (1), a solar radiator (3) is arranged above the condenser (2), a solar collector (5) is arranged above the solar radiator (3), a second base tube (9) is arranged inside the solar collector (5), a first base tube (7) is arranged inside the solar radiator (3), a condenser tube (6) is arranged inside the condenser (2), a gas flow guide tube (8) is arranged inside the first base tube (7), a connecting tube (10) is arranged inside the second base tube (9), and an adsorbent (11) is arranged between the outside of the connecting tube (10) and the inside of the second base tube (9).

2. The solar thermal rod with automatic temperature reduction and regulation function according to claim 1 is characterized in that: A first external heat sink (13) is provided outside the condenser tube (6), and the first external heat sink (13) is spiral-shaped.

3. The solar thermal rod with automatic temperature reduction and regulation function according to claim 1 is characterized in that: The gas flow guide tube (8) is provided with an inner heat sink (12) on the outside, and the first base tube (7) is provided with a second outer heat sink (14) on the outside; the inner heat sink (12) and the second outer heat sink (14) are in a spiral shape.

4. The solar thermal rod with automatic temperature reduction and regulation function according to claim 1 is characterized in that: A solar heat absorbing film (18) is arranged outside the second base tube (9), a transparent heat-insulating tube (17) is arranged outside the solar heat absorbing film (18), an end cap (16) is arranged at the top end of the second base tube (9), and partitions (15) are evenly arranged outside the connecting tube (10).

5. The solar thermal rod with automatic temperature reduction and regulation function according to claim 1 is characterized in that: The bottom end of the first base tube (7) is provided with a reducer (20), the bottom end of the second base tube (9) is provided with a shrink tube (4), and a sealing gasket (19) is provided outside the shrink tube (4) at the bottom end of the second base tube (9).

6. The solar thermal rod with automatic temperature reduction and regulation function according to claim 5, characterized in that: The bottom end of the reducer tube (20) is inserted into the top end of the interior of the condenser tube (6), and the bottom end of the shrink tube (4) is inserted into the top end of the interior of the first base tube (7).