Geothermal energy heat exchange device

Abstract

According to the technical scheme, the geothermal energy heat exchange device is characterized in that the geothermal energy heat exchange device comprises an exchange frame, a plurality of mounting frames are fixedly mounted on one side of the exchange frame, and a plurality of connecting holes are formed in one side of the exchange frame; the preheating assembly is arranged on one side of the exchange frame and used for preheating heat transfer fluid, the preheating assembly comprises a heat exchange pipe, the heat exchange pipe is arranged on one side of the exchange frame, a plurality of heat conduction assisting pieces are fixedly installed outside the heat exchange pipe, a plurality of heat exchange holes are formed in one side of each heat conduction assisting piece, and the heat exchange holes are communicated with the heat transfer fluid. According to the underground hot water heating device, an exchange frame, a mounting frame, a heat exchange pipe, a heat conduction assisting sheet, a cold water pipe, a guide pipe, a preheating shell, a preheating hole, a heat conduction plate and a heating shell which are arranged are matched for use, so that underground hot water flows in the heat exchange pipe, then the hot water flows in the heat exchange pipe to heat the heat exchange pipe, and then heat transfer fluid can be heated through the cold water pipe; therefore, the geothermal energy can be exchanged.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange, and particularly to a geothermal energy heat exchange device. Background Art

[0002] Geothermal energy is the natural heat energy extracted from the earth's crust. This energy comes from the molten rock inside the earth and exists in the form of heat. It is the energy that causes volcanic eruptions and earthquakes. The geothermal heat exchange process is mainly completed through a geothermal heat exchanger. During the heat exchange process of a geothermal well, there are two different directions of heat transfer. One is when the water temperature in the pipeline is lower than the temperature of the rock layer outside the pipeline, heat is transferred from the rock layer to the fluid. This area mainly exists in the lower part of the descending section, the horizontal section, and the lower part of the ascending section of the geothermal well. The other is when the water temperature in the pipeline is higher than the temperature of the rock layer outside the pipeline, heat is transferred from the fluid to the rock layer. This area mainly exists in the upper part of the descending section and the upper part of the ascending section of the geothermal well. The geothermal energy heat exchange is achieved through a geothermal heat exchanger, and its functions are mainly reflected in heating, cooling, and providing domestic hot water, etc.

[0003] In the prior art, since the heat transfer fluid directly exchanges heat with geothermal energy, at this time, the initial temperature of the heat transfer fluid is usually relatively low, and there is a large temperature difference between it and the relatively high-temperature underground hot water. In this case of heat exchange, a large amount of heat will be quickly transferred to the heat transfer fluid in a short time, resulting in a rapid drop in the temperature of the underground hot water, and the heat transfer fluid cannot effectively absorb all the heat in time. Therefore, after the geothermal energy exchanges heat with the heat transfer fluid, the geothermal energy in the pipeline will weaken, and the heat that is not fully utilized will be discharged from the system along with the underground hot water, causing a great waste of energy and reducing the energy utilization efficiency of the entire underground heat energy exchange system. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a geothermal energy heat exchange device to solve the problems raised in the above background art.

[0005] The above technical object of the present invention is achieved through the following technical solutions:

[0006] A geothermal energy heat exchange device includes an exchange frame. On one side of the exchange frame, a number of mounting frames are fixedly installed, and a number of connection holes are opened on one side of the exchange frame; a preheating component is arranged on one side of the exchange frame for preheating the heat transfer fluid. The preheating component includes: a heat exchange tube arranged on one side of the exchange frame. A number of heat conduction assisting fins are fixedly installed on the outer part of the heat exchange tube. A number of heat exchange holes are opened on one side of the heat conduction assisting fin. A cold water pipe is arranged inside the exchange frame. The heat conduction assisting fin passes through the connection hole and is fixedly installed on one side inside the exchange frame. The cold water pipe is fixedly sleeved with the heat exchange hole for heat exchange of geothermal energy. A guiding tube is fixedly sleeved on the outer wall surface of the water outlet of the heat exchange tube. A preheating shell is arranged on the outer wall surface of the cold water pipe. A number of preheating holes are opened on one side of the preheating shell. The preheating hole is fixedly sleeved with the cold water pipe. A heat conduction plate is fixedly installed on one side inside the preheating shell. A heating shell is fixedly installed on one side of the preheating shell. An inlet hole is opened on one side of the heating shell. The inlet hole is fixedly sleeved with the guiding tube; a circulation component for reheating geothermal energy is arranged on one side of the heating shell.

[0007] By adopting the above technical solution, through the provided heat conduction assisting sheet, by connecting the underground hot water to the heat exchange tube, the underground hot water flows inside the heat exchange tube. Then, the hot water flowing inside the heat exchange tube will heat the heat exchange tube. At the same time, the staff connects the heat transfer fluid to the inside of the cold water pipe, and the heat transfer fluid flows inside the cold water pipe. When the wall of the heat exchange tube is heated by the underground hot water, the heat exchange tube will conduct the heat to the surface of the heat conduction assisting sheet, thereby heating the heat conduction assisting sheet. The heat conduction assisting sheet can enable the heat to be transferred faster between the heat source, the heat transfer fluid and the heat sink, thus improving the overall heat exchange efficiency. Then, the heat on the surface of the heat conduction assisting sheet will diffuse inside the exchange frame and conduct to the surface of the cold water pipe to heat the cold water pipe. After the wall of the cold water pipe is heated, it will heat the heat transfer fluid inside the cold water pipe, thus facilitating the exchange of geothermal energy. After the underground hot water passes through the inside of the heat exchange tube, the thermal energy of the underground hot water is exchanged by the heat transfer fluid, and the heat of the underground hot water will decrease. Subsequently, the underground hot water flowing out of the heat exchange tube will enter the inside of the guiding tube, and then the underground hot water will enter the inside of the heating shell through the guiding tube. Then, the underground hot water will contact the surface of the heat conducting plate inside the heating shell, thereby heating the heat conducting plate. Then, the heat will be conducted to the cold water pipe through the heat conducting plate and heat the cold water pipe. Since the positions of the heating shell and the preheating shell are at the front end of the heat exchange tube, it is possible to circulate the underground hot water after heating the heat exchange tube and the heat conduction assisting sheet back to the front end of the heat exchange tube, thus facilitating the preheating of the heat transfer fluid flowing inside the cold water pipe, significantly increasing the initial temperature of the heat transfer fluid, thereby reducing the energy consumption in the subsequent heating process. The temperature difference between the preheated heat transfer fluid and the underground hot water in the heat exchanger is reduced, which helps to enhance the heat exchange efficiency. A smaller temperature difference means a greater heat conduction driving force, thus reaching the heat balance faster. The temperature of the preheated heat transfer fluid is closer to the temperature of the underground hot water, reducing the system fluctuations and unstable factors caused by too large a temperature difference.

[0008] Preferably, the circulation assembly includes: a circulation hole, which is opened on one side of the heating shell. The inner wall surface of the circulation hole is fixedly sleeved with a circulation pipe. One side of the exchange frame is fixedly installed with an installation shell. Inside the installation shell, a heating shell is fixedly installed. An introduction hole is opened on the top surface of the heating shell. An installation hole is opened on the top surface of the installation shell. The positions of the installation hole and the introduction hole correspond to each other. The circulation pipe passes through the installation hole and is fixedly sleeved with the introduction hole. One side inside the introduction hole is fixedly installed with a heat transfer plate.

[0009] By adopting the above technical solution, through the arranged heating shell, when the preheated underground hot water passes through the inside of the heating shell, the underground hot water will flow into the inside of the heating-up shell through the circulation pipe. Then, after the underground hot water heats the heat exchange pipe and the heat conduction assisting fins, the heat conduction assisting fins will heat the heat transfer plate. Subsequently, the heat transfer plate will transfer the heat to the inside of the heating-up shell, thus facilitating the reheating of the preheated underground hot water for the recycling of underground heat energy. After reheating the underground hot water, it can be first used in scenarios with high temperature requirements, such as certain heating reactions in industry. As the heat is released and the water temperature decreases, it can still be continuously used in occasions with relatively lower temperature requirements, such as low-temperature floor radiant heating of buildings and domestic hot water supply.

[0010] Preferably, a monitoring hole is formed in the top surface of the installation shell, a detection shell is fixedly installed on the top surface of the installation shell, a thermistor temperature sensor is fixedly sleeved on the inner circumferential wall of the detection shell, the thermistor temperature sensor is movably sleeved with the monitoring hole, a PLC controller is fixedly installed on one side of the installation shell, and the PLC controller is electrically connected to the thermistor temperature sensor.

[0011] By adopting the above technical solution, through the arranged thermistor temperature sensor, the temperature of the underground hot water can be monitored by the thermistor temperature sensor. By monitoring the temperature of the underground water, it is convenient to understand the process and effect of heat exchange in real time.

[0012] Preferably, a tee pipe is fixedly sleeved on the outer circumferential wall of the cold water pipe, two solenoid valves are fixedly sleeved on the outer circumferential wall of the tee pipe, a water outlet pipe is fixedly sleeved on the inner circumferential wall of the solenoid valve, and the PLC controller is electrically connected to the solenoid valve.

[0013] By adopting the above technical solution, through the arranged two solenoid valves, first, the underground heat energy can be detected by the thermistor temperature sensor. When the temperature of the heat exchange pipe is relatively low, it indicates that the heating temperature of the heat transfer fluid inside the cold water pipe is relatively low. On the contrary, when the temperature of the heat exchange pipe is detected to be high, the heat exchange pipe will heat the heat transfer fluid at a high temperature. Then, through the two solenoid valves and the water outlet pipe, when it is at a low temperature, the left solenoid valve is opened to discharge the low-temperature heat transfer fluid from the cold water pipe, and when it is at a high temperature, the right solenoid valve is opened to discharge the high-temperature heat transfer fluid, which is convenient for separately discharging and treating the high- and low-temperature heat transfer fluids, effectively improving the discharge management efficiency and regulation ability of the heat transfer fluid, ensuring the stable operation of the heat exchange system and optimizing the heat energy utilization process.

[0014] Preferably, a water outlet hole is formed in one side of the heating-up shell, a flowing water pipe is fixedly sleeved on the inner circumferential wall of the water outlet hole, a water valve is fixedly sleeved on the outer circumferential wall of the flowing water pipe, and a drain pipe is fixedly sleeved on the inner circumferential wall of the water valve.

[0015] By adopting the above technical solution, in order to discharge the geothermal hot water repeatedly heated inside the heating shell.

[0016] Preferably, ventilation holes are formed on the outer circumferential wall surface of the heat exchange tube, a ventilation pipe is fixedly sleeved on the inner circumferential wall surface of the ventilation holes, an air storage pipe is arranged on the top surface of the exchange rack, the ventilation pipe passes through the outside of the air storage pipe and is fixedly installed with the air storage pipe, a steam valve is fixedly sleeved on the outer circumferential wall surface of the air storage pipe, an exhaust pipe is fixedly sleeved on the inner circumferential wall surface of the steam valve, and a reflux strip is fixedly sleeved on the inner circumferential wall surface of the air storage pipe.

[0017] By adopting the above technical solution, through the arranged air storage pipe, after the geothermal hot water passes through the inside of the heat exchange tube, the hot steam generated by the geothermal hot water will enter the inside of the air storage pipe through the ventilation pipe, and then through the inclined reflux strip, the geothermal hot water precipitated inside the air storage pipe can be guided back into the inside of the heat exchange tube through the ventilation pipe, and then by opening the steam valve, it is convenient to separately discharge, collect and utilize the hot steam contained in the geothermal hot water.

[0018] Preferably, a filter water pipe is fixedly sleeved on the outer circumferential wall surface of the water inlet of the heat exchange tube, two fixing rings are arranged inside the filter water pipe, the two fixing rings are arranged at intervals, a filter net is fixedly installed between the two fixing rings, a support column is fixedly installed on the inner bottom surface of the filter water pipe, a rotating pipe is movably sleeved on the outer circumferential wall surface of the support column, and a plurality of stirring blades are fixedly installed on the outer circumferential wall surface of the rotating pipe.

[0019] By adopting the above technical solution, through the arranged filter water pipe, after the geothermal hot water accesses the inside of the heat exchange tube, it first passes through the filter water pipe. Then, after the geothermal hot water enters the inside of the filter water pipe, the filter net will filter the geothermal hot water. At the same time, the impact force generated when the geothermal hot water enters the inside of the filter water pipe will cause the rotating pipe and the stirring blades to rotate, so as to stir the geothermal hot water entering the inside of the filter water pipe. Stirring can make the pollutants in the groundwater more evenly dispersed in the water body, avoid excessive concentration of pollutants in local areas, and assist the filter net to filter the geothermal hot water.

[0020] Preferably, a sealing cover is arranged on the top surface of the filter water pipe, threads are formed on the outer circumferential wall surface of the sealing cover, threads are formed on the inner circumferential wall surface of the filter water pipe, and the sealing cover is threadedly connected with the filter water pipe.

[0021] By adopting the above technical solution, in order to disassemble the sealing cover to clean the filter net.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] 1. By using the exchanger rack, mounting rack, heat exchange tubes, heat conduction assisting fins, cold water pipes, guiding pipes, preheating shell, preheating holes, heat conduction plates and heating shell in cooperation, the underground hot water flows inside the heat exchange tubes. Then, the hot water flowing inside the heat exchange tubes will heat the heat exchange tubes. Subsequently, the cold water pipes can be used to heat the heat transfer fluid, thus realizing the exchange of geothermal energy;

[0024] 2. Regarding the preheating shell, preheating holes, heat conduction plates and heating shell, it is convenient to preheat the heat transfer fluid flowing inside the cold water pipes. Through the preheating operation, the initial temperature of the heat transfer fluid can be significantly increased, thereby greatly reducing energy consumption during the subsequent heating process. After preheating, the temperature difference between the heat transfer fluid and the underground hot water in the heat exchanger is significantly reduced. This not only helps to enhance the heat exchange efficiency, but also means that a smaller temperature difference implies a greater heat conduction power, enabling the system to reach the thermal equilibrium state faster. Moreover, the temperature of the preheated heat transfer fluid is closer to the temperature of the underground hot water, greatly reducing system fluctuations and unstable factors caused by excessive temperature differences;

[0025] 3. With the provided heating-up shell, after the underground hot water heats the heat exchange tubes and the heat conduction assisting fins, the heat conduction assisting fins will heat the heat transfer plate, and then the heat transfer plate will transfer the heat to the inside of the heating-up shell, thus facilitating the reheating of the preheated underground hot water for the recycling of geothermal energy. After reheating the underground hot water, it can be first used in scenarios with high temperature requirements, such as certain heating reactions in industry. As the heat is released and the water temperature decreases, it can still be used in scenarios with relatively lower temperature requirements, like low-temperature floor radiant heating in buildings and domestic hot water supply;

[0026] 4. With the provided thermistor temperature sensor, the temperature of the underground hot water can be monitored through the thermistor temperature sensor. By monitoring the temperature of the underground water, it is convenient to understand the progress and effect of the heat exchange in real time;

[0027] 5. The thermistor temperature sensor can be used to detect the geothermal energy. When the temperature of the heat exchange tubes is low, it indicates that the heating temperature of the heat transfer fluid inside the cold water pipes is low. On the contrary, when the temperature of the heat exchange tubes is detected to be high, the heat exchange tubes will heat the heat transfer fluid at a high temperature. Then, through two solenoid valves and the outlet pipe, when it is at a low temperature, the left solenoid valve is opened to discharge the low-temperature heat transfer fluid from the cold water pipe, and when it is at a high temperature, the right solenoid valve is opened to discharge the high-temperature heat transfer fluid, facilitating the separate discharge treatment of high- and low-temperature heat transfer fluids, effectively improving the discharge management efficiency and regulation ability of the heat transfer fluid, ensuring the stable operation of the heat exchange system and optimizing the process of heat energy utilization;

[0028] 6. Through the provided gas storage pipe, after the underground hot water passes through the inside of the heat exchange pipe, the hot steam generated by the underground hot water will enter the inside of the gas storage pipe through the gas vent pipe. Then, through the inclined reflux strip, the underground hot water deposited inside the gas storage pipe can be guided back into the inside of the heat exchange pipe through the gas vent pipe. Then, by opening the steam valve, it is convenient to separately discharge, collect, and utilize the hot steam contained in the underground hot water. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is the three-dimensional structure schematic diagram of the present invention;

[0030] Figure 2 is the structure schematic diagram of the exchange rack of the present invention;

[0031] Figure 3 is the structure schematic diagram of the installation shell of the present invention;

[0032] Figure 4 is the structure schematic diagram of the heating shell of the present invention;

[0033] Figure 5 is the structure schematic diagram of the preheating shell of the present invention;

[0034] Figure 6 is the structure schematic diagram of the detection shell of the present invention;

[0035] Figure 7 is the structure schematic diagram of the temperature-rising shell of the present invention;

[0036] Figure 8 is the structure schematic diagram of the cold water pipe of the present invention;

[0037] Figure 9 is the structure schematic diagram of the exhaust pipe of the present invention;

[0038] Figure 10 is Figure 9 the partial structure schematic diagram of A in

[0039] Figure 11 is the structure schematic diagram of the gas storage pipe of the present invention;

[0040] Figure 12 is the structure schematic diagram of the filter water pipe of the present invention;

[0041] Figure 13 is the structure schematic diagram of the sealing cover of the present invention.

[0042] Reference numerals: 1, switching rack; 2, mounting rack; 3, connecting hole; 4, heat exchange tube; 5, heat conduction assisting fin; 6, heat exchange hole; 7, cold water pipe; 8, guiding tube; 9, preheating shell; 10, preheating hole; 11, heat conduction plate; 12, heating shell; 13, water inlet hole; 14, circulation hole; 15, circulation pipe; 16, mounting shell; 17, mounting hole; 18, temperature rising shell; 19, introducing hole; 20, heat transfer plate; 21, monitoring hole; 22, detection shell; 23, thermistor temperature sensor; 24, sealing cover; 25, three-way pipe; 26, solenoid valve; 27, water outlet pipe; 28, flowing water pipe; 29, water valve; 30, drain pipe; 31, water outlet hole; 32, gas storage pipe; 33, steam valve; 34, exhaust pipe; 35, ventilation hole; 36, ventilation pipe; 37, return bar; 38, water filter pipe; 39, fixing ring; 40, filter net; 41, support column; 42, rotating pipe; 43, stirring blade. Detailed implementation manners

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] Embodiment: Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7, a geothermal energy heat exchange device, comprising an exchange frame 1. A number of mounting frames 2 are fixedly installed on one side of the exchange frame 1. A number of connection holes 3 are opened on one side of the exchange frame 1. A preheating component is arranged on one side of the exchange frame 1 for preheating the heat transfer fluid. The preheating component includes a heat exchange tube 4. The heat exchange tube 4 is arranged on one side of the exchange frame 1. A number of heat conduction assisting fins 5 are fixedly installed on the outer surface of the heat exchange tube 4. A number of heat exchange holes 6 are opened on one side of the heat conduction assisting fin 5. A cold water pipe 7 is arranged inside the exchange frame 1. The heat conduction assisting fin 5 passes through the connection hole 3 and is fixedly installed on one side inside the exchange frame 1. The cold water pipe 7 is fixedly sleeved with the heat exchange hole 6 for heat exchange of geothermal energy. A guiding pipe 8 is fixedly sleeved on the outer wall surface of the water outlet of the heat exchange tube 4. A preheating shell 9 is arranged on the outer wall surface of the cold water pipe 7. A number of preheating holes 10 are opened on one side of the preheating shell 9. The preheating holes 10 are fixedly sleeved with the cold water pipe 7. A heat conduction plate 11 is fixedly installed on one side inside the preheating shell 9. A heating shell 12 is fixedly installed on one side of the preheating shell 9. A water inlet hole 13 is opened on one side of the heating shell 12. The water inlet hole 13 is fixedly sleeved with the guiding pipe 8. A circulating component for reheating geothermal energy is arranged on one side of the heating shell 12. The circulating component includes a circulating hole 14. The circulating hole 14 is opened on one side of the heating shell 12. A circulating pipe 15 is fixedly sleeved on the inner wall surface of the circulating hole 14. A mounting shell 16 is fixedly installed on one side of the exchange frame 1. A temperature rising shell 18 is fixedly installed inside the mounting shell 16. An introduction hole 19 is opened on the top surface of the temperature rising shell 18. A mounting hole 17 is opened on the top surface of the mounting shell 16. The positions of the mounting hole 17 and the introduction hole 19 correspond to each other. The circulating pipe 15 passes through the mounting hole 17 and is fixedly sleeved with the introduction hole 19. A heat transfer plate 20 is fixedly installed on one side inside the introduction hole 19;

[0045] Through the provided heat conduction assisting fin 5, by connecting the underground hot water to the heat exchange tube 4, the underground hot water flows inside the heat exchange tube 4. Then, as the hot water flows inside the heat exchange tube 4, it heats the heat exchange tube 4. At the same time, the staff connects the heat transfer fluid to the inside of the cold water pipe 7, causing the heat transfer fluid to flow inside the cold water pipe 7. When the wall of the heat exchange tube 4 is heated by the underground hot water, the heat exchange tube 4 conducts the heat to the surface of the heat conduction assisting fin 5, thereby heating the heat conduction assisting fin 5. The heat conduction assisting fin 5 enables the heat to be transferred faster between the heat source, the heat transfer fluid, and the heat sink, thus improving the overall heat exchange efficiency. Then, the heat on the surface of the heat conduction assisting fin 5 diffuses inside the exchange frame 1 and conducts to the surface of the cold water pipe 7 to heat the cold water pipe 7. After the wall temperature of the cold water pipe 7 rises, it heats the heat transfer fluid inside the cold water pipe 7, facilitating the exchange of geothermal energy. After the underground hot water passes through the inside of the heat exchange tube 4, the thermal energy of the underground hot water is exchanged by the heat transfer fluid, and the heat of the underground hot water decreases. Subsequently, the underground hot water flowing out of the heat exchange tube 4 enters the inside of the guiding pipe 8, and then the underground hot water enters the inside of the heating shell 12 through the guiding pipe 8. Further, the underground hot water contacts the surface of the heat conduction plate 11 inside the heating shell 12, thereby heating the heat conduction plate 11. Then, the heat conduction plate 11 conducts the heat to the cold water pipe 7 and heats the cold water pipe 7. Since the positions of the heating shell 12 and the preheating shell 9 are at the front end of the heat exchange tube 4, the underground hot water after heating the heat exchange tube 4 and the heat conduction assisting fin 5 can be circulated back to the front end of the heat exchange tube 4, facilitating the preheating of the heat transfer fluid flowing inside the cold water pipe 7, significantly increasing the initial temperature of the heat transfer fluid, thereby reducing the energy consumption in the subsequent heating process. The temperature difference between the preheated heat transfer fluid and the underground hot water in the heat exchanger decreases, contributing to enhancing the heat exchange efficiency. A smaller temperature difference means a greater heat conduction driving force, thus reaching the thermal equilibrium faster. The temperature of the preheated heat transfer fluid is closer to the temperature of the underground hot water, reducing the system fluctuations and unstable factors caused by excessive temperature differences. When the underground hot water for preheating passes through the inside of the heating shell 12, the underground hot water flows into the inside of the temperature rising shell 18 through the circulation pipe 15. Then, after the underground hot water heats the heat exchange tube 4 and the heat conduction assisting fin 5, the heat conduction assisting fin 5 heats the heat transfer plate 20. Subsequently, the heat transfer plate 20 transfers the heat to the inside of the temperature rising shell 18, facilitating the reheating of the preheated underground hot water for the recycling of geothermal energy. After reheating the underground hot water, it can be first used in scenarios with high temperature requirements, such as certain heating reactions in industry. As the heat is released and the water temperature decreases, it can still be used in occasions with relatively lower temperature requirements, like low-temperature floor radiant heating in buildings and domestic hot water supply.

[0046] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4, Figure 6 , Figure 7 and Figure 8 , a monitoring hole 21 is opened on the top surface of the installation shell 16, a detection shell 22 is fixedly installed on the top surface of the installation shell 16, a thermistor temperature sensor 23 is fixedly sleeved on the inner circular wall surface of the detection shell 22, the thermistor temperature sensor 23 is movably sleeved with the monitoring hole 21, a PLC controller is fixedly installed on one side of the installation shell 16, the PLC controller is electrically connected with the thermistor temperature sensor 23, a three-way pipe 25 is fixedly sleeved on the outer circular wall surface of the cold water pipe 7, two solenoid valves 26 are fixedly sleeved on the outer circular wall surface of the three-way pipe 25, a water outlet pipe 27 is fixedly sleeved on the inner circular wall surface of the solenoid valve 26, the PLC controller is electrically connected with the solenoid valve 26, a water outlet hole 31 is opened on one side of the heating shell 18, a flowing water pipe 28 is fixedly sleeved on the inner circular wall surface of the water outlet hole 31, a water valve 29 is fixedly sleeved on the outer circular wall surface of the flowing water pipe 28, and a drain pipe 30 is fixedly sleeved on the inner circular wall surface of the water valve 29;

[0047] By setting the thermistor temperature sensor 23, the temperature of the underground hot water can be monitored through the thermistor temperature sensor 23. By monitoring the temperature of the underground water, it is convenient to understand the process and effect of heat exchange in real time. The underground heat energy is detected through the thermistor temperature sensor 23. When the temperature of the heat exchange tube 4 is relatively low, it indicates that the heating temperature of the heat transfer fluid inside the cold water pipe 7 is relatively low. On the contrary, when the temperature of the heat exchange tube 4 is detected to be high, the heat exchange tube 4 will heat the heat transfer fluid at a high temperature. Then, through the two solenoid valves 26 and the water outlet pipe 27, when it is low temperature, the left solenoid valve 26 is opened to discharge the low-temperature heat transfer fluid from the cold water pipe 7. When it is high temperature, the right solenoid valve 26 is opened to discharge the high-temperature heat transfer fluid, which is convenient for separately discharging and treating the high- and low-temperature heat transfer fluids, effectively improving the discharge management efficiency and regulation ability of the heat transfer fluid, ensuring the stable operation of the heat exchange system and optimizing the heat energy utilization process.

[0048] Reference Figure 1 , Figure 4 , Figure 9 , Figure 10 and Figure 11 , a ventilation hole 35 is opened on the outer circular wall surface of the heat exchange tube 4, a ventilation pipe 36 is fixedly sleeved on the inner circular wall surface of the ventilation hole 35, a gas storage pipe 32 is arranged on the top surface of the exchange rack 1, the ventilation pipe 36 passes through the outside of the gas storage pipe 32 and is fixedly installed with the gas storage pipe 32, a steam valve 33 is fixedly sleeved on the outer circular wall surface of the gas storage pipe 32, an exhaust pipe 34 is fixedly sleeved on the inner circular wall surface of the steam valve 33, and a reflux strip 37 is fixedly sleeved on the inner circular wall surface of the gas storage pipe 32;

[0049] Through the provided gas storage pipe 32, after the underground hot water passes through the interior of the heat exchange pipe 4, the hot steam generated by the underground hot water will enter the interior of the gas storage pipe 32 through the gas vent pipe 36. Then, through the inclined return strip 37, the underground hot water sedimented inside the gas storage pipe 32 can be guided back into the interior of the heat exchange pipe 4 through the gas vent pipe 36. Then, by opening the steam valve 33, it is convenient to separately discharge, collect, and utilize the hot steam contained in the underground hot water.

[0050] Reference Figure 1 、 Figure 2 、 Figure 12 and Figure 13 As shown in FIGS. ,

[0050] , Figure 1 , Figure 2 , Figure 12 , Figure 13 , a filter water pipe 38 is fixedly sleeved on the outer circumferential wall of the water inlet of the heat exchange pipe 4. Two fixing rings 39 are arranged inside the filter water pipe 38. The two fixing rings 39 are spaced apart. A filter net 40 is fixedly installed between the two fixing rings 39. A support column 41 is fixedly installed on the inner bottom surface of the filter water pipe 38. A rotating pipe 42 is movably sleeved on the outer circumferential wall of the support column 41. A plurality of stirring blades 43 are fixedly installed on the outer circumferential wall of the rotating pipe 42. A sealing cover 24 is arranged on the top surface of the filter water pipe 38. Threads are provided on the outer circumferential wall of the sealing cover 24, and threads are provided on the inner circumferential wall of the filter water pipe 38. The sealing cover 24 is threadedly connected to the filter water pipe 38;

[0051] Through the provided filter water pipe 38, after the underground hot water accesses the interior of the heat exchange pipe 4, it first passes through the filter water pipe 38. Then, after the underground hot water enters the interior of the filter water pipe 38, the filter net 40 will filter the underground hot water. At the same time, the impact force generated when the underground hot water enters the interior of the filter water pipe 38 will cause the rotating pipe 42 and the stirring blades 43 to rotate, so as to stir the underground hot water entering the interior of the filter water pipe 38. Stirring can make the pollutants in the underground water more evenly dispersed in the water body, avoiding excessive concentration of pollutants in local areas, so as to assist the filter net 40 in filtering the underground hot water.

[0052] Working principle: Please refer to Figures 1 - 13As shown, through the provided heat conduction assisting fin 5, by connecting the underground hot water to the heat exchange tube 4, the underground hot water flows inside the heat exchange tube 4. Then, the hot water flowing inside the heat exchange tube 4 will heat the heat exchange tube 4. At the same time, the staff connects the heat transfer fluid to the inside of the cold water pipe 7, and the heat transfer fluid flows inside the cold water pipe 7. When the wall of the heat exchange tube 4 is heated by the underground hot water, the heat exchange tube 4 will conduct the heat to the surface of the heat conduction assisting fin 5, thereby heating the heat conduction assisting fin 5. The heat conduction assisting fin 5 can enable the heat to be transferred between the heat source, the heat transfer fluid, and the heat sink more quickly, thereby improving the overall heat exchange efficiency. Then, the heat on the surface of the heat conduction assisting fin 5 will diffuse inside the exchange rack 1 and conduct to the surface of the cold water pipe 7 to heat the cold water pipe 7. After the wall of the cold water pipe 7 is heated, it will heat the heat transfer fluid inside the cold water pipe 7, thus facilitating the exchange of geothermal energy. After the underground hot water passes through the inside of the heat exchange tube 4, the thermal energy of the underground hot water is exchanged by the heat transfer fluid, and the heat of the underground hot water will decrease. Subsequently, the underground hot water flowing out of the heat exchange tube 4 will enter the inside of the guiding tube 8, and then the underground hot water will enter the inside of the heating shell 12 through the guiding tube 8. Then, the underground hot water will contact the surface of the heat conduction plate 11 inside the heating shell 12, thereby heating the heat conduction plate 11. Then, through the heat conduction plate 11, the heat will be conducted to the cold water pipe 7 and heat the cold water pipe 7. Since the positions of the heating shell 12 and the preheating shell 9 are at the front end of the heat exchange tube 4, it is possible to circulate the underground hot water after heating the heat exchange tube 4 and the heat conduction assisting fin 5 back to the front end of the heat exchange tube 4, thus facilitating the preheating of the heat transfer fluid flowing inside the cold water pipe 7. Through the preheating operation, the initial temperature of the heat transfer fluid can be significantly increased, thereby greatly reducing the energy consumption in the subsequent heating process. The temperature difference between the preheated heat transfer fluid and the underground hot water in the heat exchanger is significantly reduced. This not only helps to enhance the heat exchange efficiency, but also means that a smaller temperature difference implies a greater heat conduction driving force, which can prompt the system to reach the thermal equilibrium state more quickly. Moreover, the temperature of the preheated heat transfer fluid is closer to the temperature of the underground hot water, greatly reducing the system fluctuations and unstable factors caused by excessive temperature differences.

[0053] Through the provided thermistor temperature sensor 23, the temperature of the underground hot water can be monitored by the thermistor temperature sensor 23. By monitoring the temperature of the underground water, it is convenient to understand the process and effect of heat exchange in real time.

[0054] With the two solenoid valves 26 provided, first, the underground geothermal energy can be detected by the thermistor temperature sensor 23. When the temperature of the heat exchange pipe 4 is relatively low, it indicates that the heating temperature of the heat transfer fluid inside the cold water pipe 7 is relatively low. On the contrary, when the temperature of the heat exchange pipe 4 is detected to be high, the heat exchange pipe 4 will heat the heat transfer fluid to a high temperature. Then, through the two solenoid valves 26 and the water outlet pipe 27, when it is at a low temperature, the left solenoid valve 26 is opened to discharge the low-temperature heat transfer fluid from the cold water pipe 7. When it is at a high temperature, the right solenoid valve 26 is opened to discharge the high-temperature heat transfer fluid, which is convenient for separately discharging and treating the high-temperature and low-temperature heat transfer fluids, effectively improving the discharge management efficiency and regulation ability of the heat transfer fluid, ensuring the stable operation of the heat exchange system and optimizing the process of heat energy utilization.

[0055] With the gas storage pipe 32 provided, after the underground hot water passes through the inside of the heat exchange pipe 4, the thermal steam generated by the underground hot water will enter the inside of the gas storage pipe 32 through the air vent pipe 36. Then, through the inclined return strip 37, the underground hot water deposited inside the gas storage pipe 32 can be guided back into the inside of the heat exchange pipe 4 through the air vent pipe 36. Then, by opening the steam valve 33, it is convenient to separately discharge, collect and utilize the thermal steam contained in the underground hot water.

[0056] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A geothermal energy heat exchange device, characterized in that, Including: An exchange rack (1), on one side of the exchange rack (1), a plurality of mounting racks (2) are fixedly installed, and on one side of the exchange rack (1), a plurality of connection holes (3) are opened; A preheating component, arranged on one side of the exchange rack (1) for preheating the heat transfer fluid. The preheating component includes: a heat exchange tube (4), the heat exchange tube (4) is arranged on one side of the exchange rack (1), and a plurality of heat conduction assisting fins (5) are fixedly installed on the outer part of the heat exchange tube (4). A plurality of heat exchange holes (6) are opened on one side of the heat conduction assisting fin (5). A cold water pipe (7) is arranged inside the exchange rack (1). The heat conduction assisting fin (5) passes through the connection hole (3) and is fixedly installed on one side inside the exchange rack (1). The cold water pipe (7) is fixedly sleeved with the heat exchange hole (6) for heat exchange of geothermal energy. A guiding pipe (8) is fixedly sleeved on the outer wall surface of the water outlet of the heat exchange tube (4). A preheating shell (9) is arranged on the outer wall surface of the cold water pipe (7). A plurality of preheating holes (10) are opened on one side of the preheating shell (9). The preheating holes (10) are fixedly sleeved with the cold water pipe (7). A heat conduction plate (11) is fixedly installed on one side inside the preheating shell (9). A heating shell (12) is fixedly installed on one side of the preheating shell (9). An inlet hole (13) is opened on one side of the heating shell (12). The inlet hole (13) is fixedly sleeved with the guiding pipe (8); On one side of the heating shell (12), a circulating component is arranged for reheating the geothermal energy.

2. The geothermal energy heat exchange device according to claim 1, wherein The circulating component includes: A circulating hole (14), the circulating hole (14) is opened on one side of the heating shell (12), and a circulating pipe (15) is fixedly sleeved on the inner wall surface of the circulating hole (14). A mounting shell (16) is fixedly installed on one side of the exchange rack (1). A temperature rising shell (18) is fixedly installed inside the mounting shell (16). An introduction hole (19) is opened on the top surface of the temperature rising shell (18). A mounting hole (17) is opened on the top surface of the mounting shell (16). The positions of the mounting hole (17) and the introduction hole (19) correspond to each other. The circulating pipe (15) passes through the mounting hole (17) and is fixedly sleeved with the introduction hole (19). A heat transfer plate (20) is fixedly installed on one side inside the introduction hole (19).

3. A geothermal energy heat exchange device according to claim 2, characterized in that: A monitoring hole (21) is opened on the top surface of the mounting shell (16). A detection shell (22) is fixedly installed on the top surface of the mounting shell (16). A thermistor temperature sensor (23) is fixedly sleeved on the inner wall surface of the detection shell (22). The thermistor temperature sensor (23) is movably sleeved with the monitoring hole (21). A PLC controller is fixedly installed on one side of the mounting shell (16). The PLC controller is electrically connected to the thermistor temperature sensor (23).

4. The geothermal energy heat exchange device according to claim 3, wherein: A tee joint pipe (25) is fixedly sleeved on the outer circumferential wall surface of the cold water pipe (7). Two solenoid valves (26) are fixedly sleeved on the outer circumferential wall surface of the tee joint pipe (25). An outlet water pipe (27) is fixedly sleeved on the inner circumferential wall surface of the solenoid valve (26). The PLC controller is electrically connected to the solenoid valve (26).

5. The geothermal energy heat exchange device according to claim 4, characterized in that: A water outlet hole (31) is formed on one side of the temperature increasing shell (18). A flowing water pipe (28) is fixedly sleeved on the inner circumferential wall surface of the water outlet hole (31). A water valve (29) is fixedly sleeved on the outer circumferential wall surface of the flowing water pipe (28). A drain pipe (30) is fixedly sleeved on the inner circumferential wall surface of the water valve (29).

6. The geothermal energy heat exchange device according to claim 1, characterized in that: A ventilation hole (35) is formed on the outer circumferential wall surface of the heat exchange pipe (4). A ventilation pipe (36) is fixedly sleeved on the inner circumferential wall surface of the ventilation hole (35). An air storage pipe (32) is arranged on the top surface of the exchange rack (1). An air storage pipe (32) is arranged on the top surface of the exchange rack (1). The ventilation pipe (36) passes through the outside of the air storage pipe (32) and is fixedly installed with the air storage pipe (32). A steam valve (33) is fixedly sleeved on the outer circumferential wall surface of the air storage pipe (32). An exhaust pipe (34) is fixedly sleeved on the inner circumferential wall surface of the steam valve (33). A reflux bar (37) is fixedly sleeved on the inner circumferential wall surface of the air storage pipe (32).

7. A geothermal energy heat exchange device according to claim 1, characterized in that: A filter water pipe (38) is fixedly sleeved on the outer circumferential wall surface of the water inlet of the heat exchange pipe (4). Two fixing rings (39) are arranged inside the filter water pipe (38). The two fixing rings (39) are arranged at intervals. A filter net (40) is fixedly installed between the two fixing rings (39). A support column (41) is fixedly installed on the inner bottom surface of the filter water pipe (38). A rotating pipe (42) is movably sleeved on the outer circumferential wall surface of the support column (41). A plurality of stirring blades (43) are fixedly installed on the outer circumferential wall surface of the rotating pipe (42).

8. The geothermal energy heat exchange device according to claim 7, characterized in that: A sealing cover (24) is arranged on the top surface of the filter water pipe (38). Threads are formed on the outer circumferential wall surface of the sealing cover (24). Threads are formed on the inner circumferential wall surface of the filter water pipe (38). The sealing cover (24) is threadedly connected to the filter water pipe (38).

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