Closed geothermal heat exchange device

Abstract

The utility model discloses a closed terrestrial heat exchange device, which particularly relates to the technical field of terrestrial heat, and comprises a bottom plate, a water tank is arranged at the top of the bottom plate, a heating mechanism is arranged in the water tank, the heating mechanism comprises a mounting plate arranged in the water tank, and a plurality of electric heating tubes are arranged at the bottom of the mounting plate. A plurality of electric heating pipes are arranged in the water tank, partition plates are arranged on one sides of the electric heating pipes and are in a wave shape, a temperature sensor is arranged in the water tank, a conveying pipe is arranged on one side of the water tank, and a control mechanism is arranged in the conveying pipe. According to the utility model, cold water can be rapidly heated, the temperature can be accurately controlled, and the flow speed of hot water conveying can be adjusted, so that the convection heat exchange effect is better enhanced.

Description

Technical Field

[0001] The utility model relates to a heat transfer device, in particular to a closed geothermal heat exchange device, belonging to the field of geothermal technology. Background Art

[0002] Geothermal heating is called low-temperature floor radiation heating, or floor heating for short. It uses hot water not higher than 60°C as a heat medium, which circulates in the heating pipe to heat the floor. It supplies heat to the room through the ground by radiation and convection. To achieve the effect of indoor heating, a closed geothermal heat exchange device is needed to ensure that the indoor temperature is suitable for living, so it is widely used.

[0003] The existing mechanism adopts a relatively simple bolt connection method, and the installation and fixing is relatively cumbersome, which is inconvenient for installing and fixing the closed geothermal heat exchange device, and is not conducive to the use of the closed geothermal heat exchange device. Since the outer side of the closed geothermal heat exchange device is exposed to the outside for installation and use, its outer side has poor protection ability and is easily damaged from the outside, resulting in poor effect during use.

[0004] After searching, a Chinese patent with publication number CN218846990U discloses a closed geothermal heat exchange device. By starting a servo motor, the servo motor will drive the forward and reverse threaded rotating rod to rotate, so that the clamping seats on both sides of the forward and reverse threaded rotating rod can be adjusted and moved synchronously. In this way, the entire closed geothermal heat exchange device can be adapted by adjusting the distance between the two sets of clamping seats, so that the first rubber block can perform preliminary installation and fixation on the left and right sides of the device. Then, the position of the bolt handle is adjusted by rotating, and the bolt handle drives the second rubber block at the mobile base to limit and fix the front and rear sides of the closed geothermal heat exchange device. In this way, the closed geothermal heat exchange device can be installed and fixed all around, which is convenient for the use of the closed geothermal heat exchange device.

[0005] However, in actual use, this structure is converted into hot gas and hot liquid through a heat exchanger before use, but the temperature of the cold source after the exchange cannot be controlled. If heat is output at a low temperature, it will affect the use effect, and the size of the water flow cannot be accurately adjusted, making it difficult to adapt to the heat transfer requirements under different load and temperature conditions. Utility Model Content

[0006] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a closed geothermal heat exchange device, which can accurately control the temperature and water level by setting a temperature sensor and a position sensor, and is easy to use and simple to operate.

[0007] The technical solution adopted by the utility model to solve the technical problem is:

[0008] A closed geothermal heat exchange device comprises a base plate, a water tank is arranged on the top of the base plate, a heating mechanism is arranged inside the water tank, the heating mechanism comprises a mounting plate arranged inside the water tank, a plurality of electric heating tubes are arranged at the bottom of the mounting plate, a partition is arranged on one side of the plurality of electric heating tubes, the partition is arranged in a wave shape, a temperature sensor is arranged inside the water tank, a delivery pipe is arranged on one side of the water tank, the left end of the delivery pipe is connected to the electric heating tube, and a control mechanism is arranged in the middle of the right end of the delivery pipe.

[0009] An installation box is arranged outside the control mechanism, and the control mechanism is composed of a motor and a turntable. A motor is arranged inside the installation box, and an output end of the motor is coaxially connected with a rotating shaft, a turntable is sleeved on the rotating shaft, the turntable is located in the conveying pipe and matches the inner diameter of the conveying pipe, and a sealing ring is arranged on the surface of the turntable.

[0010] A transmission box is arranged at the right end of the delivery pipe, a circulating water pump is arranged at the right end of the transmission box, and a connecting water pipe is arranged at the top of the transmission box.

[0011] A fixing box is arranged at one side of the bottom plate, a motor is arranged inside the fixing box, and an output end of the motor is coaxially connected with a bidirectional threaded rod.

[0012] The two ends of the bidirectional threaded rod are respectively connected with threaded sleeves through threads, and a connecting plate is arranged on the right side of each threaded sleeve, the inner wall of the connecting plate is provided with a silicone layer, a slider is arranged at the bottom of the right side of the connecting plate, and a sliding groove is opened on the surface of the slider corresponding to the bottom plate, and the slider is slidably connected with the sliding groove.

[0013] There are two connecting plates, which are respectively located in front and in the rear of the water tank, and the size of each connecting plate matches the size of the front and rear of the water tank.

[0014] A first heat-insulating layer is arranged on the surface of the water tank, a controller is arranged on one side of the water tank, a first position sensor is arranged inside the water tank, and a second position sensor is arranged below the first position sensor.

[0015] The surfaces of the circulating water pump and the connecting water pipe are both provided with a second thermal insulation layer.

[0016] Technical effects and advantages of the utility model:

[0017] By setting a heating mechanism, compared with the prior art, cold water is transported to the inside of the bottom plate through an externally connected water pipe, and then when the water level reaches the first position sensor, the processor transmits a signal to the controller, and the controller controls the external water stop valve to close, stops adding water, and then starts the electric heating pipe to heat the cold water inside the water tank. When a certain temperature is reached, it is sensed by the temperature sensor, and the processor transmits a signal to the controller, and the controller closes the electric heating pipe to stop heating, so that the temperature is accurately controlled in time, and the whole process is automated, saving time and effort;

[0018] By setting up a control mechanism, compared with the existing technology, the starting motor drives the shaft to rotate, and the shaft drives the turntable to rotate, thereby opening the delivery pipe, and entering the external geothermal pipeline through the connecting water pipe to ensure the stability of the temperature. The water flows through the contact of the partition, thereby optimizing the fluid flow path, thereby further improving the heat transfer efficiency, and can enhance the convective heat exchange effect. Strengthening the insulation measures of the device can effectively reduce the loss of heat to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the heating mechanism structure of the utility model.

[0022] Figure 4 It is a schematic diagram of the control mechanism structure of the utility model.

[0023] Figure 5 It is a front view cross-sectional structural schematic diagram of the utility model.

[0024] Among them: 1. bottom plate; 2. water tank; 3. mounting plate; 4. electric heating tube; 5. partition; 6. temperature sensor; 7. delivery pipe; 8. mounting box; 9. motor; 10. rotating shaft; 11. turntable; 12. transmission box; 13. circulating water pump; 14. connecting water pipe; 15. fixing box; 16. motor; 17. bidirectional threaded rod; 18. threaded sleeve; 19. connecting plate; 20. silicone layer; 21. slider; 22. first insulation layer; 23. controller; 24. first position sensor; 25. second position sensor; 26. second insulation layer. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The embodiments of this application disclose Figure 1-5 The closed geothermal heat exchange device shown comprises a bottom plate 1, a water tank 2 is arranged on the top of the bottom plate 1, and a heating mechanism is arranged inside the water tank 2;

[0027] The heating mechanism includes a mounting plate 3 arranged inside the water tank 2, a plurality of electric heating tubes 4 are arranged at the bottom of the mounting plate 3, a partition 5 is arranged on one side of the plurality of electric heating tubes 4, and the partition 5 is arranged in a wave shape. A temperature sensor 6 is arranged inside the water tank 2, a delivery pipe 7 is arranged on one side of the water tank 2, and a control mechanism is arranged inside the delivery pipe 7. Cold water is delivered to the inside of the bottom plate 1 through an externally connected water pipe. When the water level reaches the first position sensor 24, the first position sensor 24 transmits a signal to the processor, which transmits the signal to the controller 23 through the processor. The controller 23 controls the external water stop valve to be closed, stops adding water, and then starts the electric heating tube 4 to heat the cold water inside the water tank 2. When a certain temperature is reached, the temperature sensor 6 is sensed, and the signal is transmitted to the processor. The signal is transmitted to the controller 23 through the processor, and the electric heating tube 4 is closed through the controller 23 to stop heating, thereby accurately controlling the temperature.

[0028] Reference Figure 2-3 As shown, the control mechanism includes an installation box 8 arranged on one side of the delivery pipe 7, a motor 9 is arranged inside the installation box 8, an output end of the motor 9 is coaxially connected with a rotating shaft 10, a turntable 11 is sleeved on the rotating shaft 10, a sealing ring is arranged on the surface of the turntable 11, a transmission box 12 is arranged on one side of the delivery pipe 7, a circulating water pump 13 is arranged at one end of the transmission box 12, and a connecting water pipe 14 is arranged on the top of the transmission box 12. The motor 9 is started to drive the rotating shaft 10 to rotate, and the rotating shaft 10 drives the turntable 11 to rotate, thereby opening the delivery pipe 7. In order to enhance the convective heat exchange effect, the circulating water pump 13 is started to drive the hot water inside the water tank 2 to enter the interior of the transmission box 12 through the delivery pipe 7, and then transported to the interior of the connecting water pipe 14 through the transmission box 12, and enters the external geothermal pipeline through the connecting water pipe 14, thereby ensuring the temperature stability.

[0029] Reference Figure 3-4As shown, a fixed box 15 is provided on one side of the base plate 1, and a motor 16 is provided inside the fixed box 15. The output end of the motor 16 is coaxially connected with a bidirectional threaded rod 17. Two threaded sleeves 18 are sleeved on the bidirectional threaded rod 17. A connecting plate 19 is provided on one side of the threaded sleeve 18. A silicone layer 20 is provided on one side of the connecting plate 19. A slider 21 is provided on one side of the connecting plate 19. A slide groove is provided on the surface of the base plate 1, and the slider 21 is slidably connected with the slide groove. The motor 16 is started to drive the bidirectional threaded rod 17 to rotate, the bidirectional threaded rod 17 drives the threaded sleeve 18 to move, the threaded sleeve 18 drives the connecting plate 19 to move, and the connecting plate 19 drives the slider 21 to move in the slide groove provided on the surface of the base plate 1, thereby improving stability. Then the water tank 2 is clamped and fixed, and the silicone layer 20 prevents damage to the surface of the water tank 2, further improving the use effect.

[0030] Reference Figure 5 As shown, a first thermal insulation layer 22 is provided on the surface of the water tank 2, a controller 23 is provided on one side of the water tank 2, a first position sensor 24 is provided inside the water tank 2, a second position sensor 25 is provided at the bottom of the first position sensor 24, and a second thermal insulation layer 26 is provided on the surface of the circulating water pump 13 and the connecting water pipe 14. The water pipe 14 is connected to the external geothermal pipeline to ensure the stability of the temperature. The water flows through the contact of the partition 5 to optimize the fluid flow path, thereby further improving the heat transfer efficiency. By providing the first thermal insulation layer 22 and the second thermal insulation layer 26, the heat loss and thermal resistance are effectively reduced, thereby improving the heat transfer efficiency of the geothermal heat exchange device.

[0031] Working principle of the utility model: When the utility model is used, the motor 16 is first started to drive the bidirectional threaded rod 17 to rotate, the bidirectional threaded rod 17 drives the threaded sleeve 18 to move, the threaded sleeve 18 drives the connecting plate 19 to move, and the connecting plate 19 drives the slider 21 to move in the slide groove opened on the surface of the bottom plate 1, thereby improving stability, and then the water tank 2 is clamped and fixed, and the silicone layer 20 prevents damage to the surface of the water tank 2, further improving the use effect;

[0032] Then, cold water is transported to the bottom plate 1 through an external water pipe. When the water level reaches the first position sensor 24, the first position sensor 24 transmits a signal to the processor, which transmits the signal to the controller 23. The controller 23 controls the external water stop valve to close and stop adding water. Then, the electric heating pipe 4 is started to heat the cold water in the water tank 2. When a certain temperature is reached, the temperature sensor 6 senses and transmits a signal to the processor. The processor transmits a signal to the controller 23, and the controller 23 closes the electric heating pipe 4 to stop heating. , and start the motor 9 to drive the rotating shaft 10 to rotate, the rotating shaft 10 drives the turntable 11 to rotate, so as to open the delivery pipe 7, and in order to enhance the convective heat exchange effect, when the water level is low, the second position sensor 25 can transmit the signal to the processor, and the processor transmits the signal to the controller 23, and the controller 23 controls the external water valve to open and add water to the water tank 2, wherein the model of the first position sensor 24 and the second position sensor 25 is CYW11, the model of the controller 23 is SDVC31-S, and the model of the temperature sensor 6 is CWDZ28;

[0033] At the same time, the circulating water pump 13 is started to drive the hot water inside the water tank 2 to enter the interior of the transmission box 12 through the delivery pipe 7, and then is transported to the interior of the connecting water pipe 14 through the transmission box 12, and enters the external geothermal pipeline through the connecting water pipe 14, thereby ensuring the stability of the temperature. The water flows through the contact of the partition 5, thereby optimizing the fluid flow path, thereby further improving the heat transfer efficiency. By setting the first insulation layer 22 and the second insulation layer 26, the heat loss and thermal resistance are effectively reduced, thereby improving the heat transfer efficiency of the geothermal heat exchange device.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A closed geothermal heat exchange device, comprising a bottom plate (1), characterized in that: A water tank (2) is arranged on the top of the bottom plate (1), a heating mechanism is arranged inside the water tank (2), the heating mechanism comprises a mounting plate (3) arranged inside the water tank (2), a plurality of electric heating tubes (4) are arranged at the bottom of the mounting plate (3), a partition (5) is arranged on one side of the plurality of electric heating tubes (4), the partition (5) is arranged in a wave shape, a temperature sensor (6) is arranged inside the water tank (2), a delivery pipe (7) is arranged on one side of the water tank (2), the left end of the delivery pipe (7) is connected to the electric heating tube (4), and a control mechanism is arranged in the middle of the right end of the delivery pipe (7).

2. A closed geothermal heat exchange device according to claim 1, characterized in that: An installation box (8) is arranged outside the control mechanism. The control mechanism is composed of a motor (9) and a turntable (11). The motor (9) is arranged inside the installation box (8). The output end of the motor (9) is coaxially connected to a rotating shaft (10). The turntable (11) is sleeved on the rotating shaft (10). The turntable (11) is located inside the conveying pipe (7) and matches the inner diameter of the conveying pipe (7). A sealing ring is arranged on the surface of the turntable (11).

3. A closed geothermal heat exchange device according to claim 1, characterized in that: A transmission box (12) is provided at the right end of the delivery pipe (7), a circulating water pump (13) is provided at the right end of the transmission box (12), and a connecting water pipe (14) is provided at the top of the transmission box (12).

4. A closed geothermal heat exchange device according to claim 1, characterized in that: A fixing box (15) is provided on one side of the bottom plate (1), a motor (16) is provided inside the fixing box (15), and an output end of the motor (16) is coaxially connected to a bidirectional threaded rod (17).

5. A closed geothermal heat exchange device according to claim 4, characterized in that: The two ends of the bidirectional threaded rod (17) are respectively connected to threaded sleeves (18) through threads, and a connecting plate (19) is provided on the right side of each threaded sleeve (18), and the inner wall of the connecting plate (19) is provided with a silicone layer (20). A slider (21) is provided at the bottom of the right side of the connecting plate (19), and a sliding groove is provided on the surface of the slider (21) corresponding to the bottom plate (1), and the slider (21) is slidably connected to the sliding groove.

6. A closed geothermal heat exchange device according to claim 5, characterized in that: There are two connecting plates (19), which are respectively located in front and in the rear of the water tank (2), and the size of each connecting plate (19) matches the size of the front and rear of the water tank (2).

7. The closed geothermal heat exchange device according to claim 1, characterized in that: A first heat-insulating layer (22) is provided on the surface of the water tank (2), a controller (23) is provided on one side of the water tank (2), a first position sensor (24) is provided inside the water tank (2), and a second position sensor (25) is provided below the first position sensor (24).

8. The closed geothermal heat exchange device according to claim 3, characterized in that: The surfaces of the circulating water pump (13) and the connecting water pipe (14) are both provided with a second thermal insulation layer (26).

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