Geothermal heat storage efficient heat exchange device

Abstract

The invention relates to a geothermal heat storage efficient heat exchange device, and belongs to the technical field of geothermal heat exchange, the geothermal heat storage efficient heat exchange device comprises a heat storage tank, a heat source inlet pipe and a heat source outlet pipe are connected to the front side and the rear side of the top of the heat storage tank respectively, a comprehensive outlet pipe is connected to the middle of the bottom of the heat storage tank, and a heat storage structure and a heat exchange structure are arranged in the heat storage tank; the heat storage structure and the heat exchange structure are arranged in a spaced mode, the heat storage structure comprises a plurality of heat storage rings, the heat storage rings are vertically distributed in the heat storage tank at intervals, the heat exchange structure comprises a heat exchange pipe, the heat exchange pipe is arranged on the outer circle of the vertically-arranged heat storage rings in a sleeving mode, and the water inlet end of the heat exchange pipe penetrates to the outer side of the heat storage tank. The multiple layers of heat storage rings and the multiple heat storage rods are adopted for heat storage, a three-dimensional heat storage space is formed, the heat storage area is increased, and the heat storage capacity is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of geothermal heat exchange, and in particular to an efficient geothermal heat storage and heat exchange device. Background Art

[0002] A heat reservoir refers to a stratum, rock mass or tectonic zone buried underground with effective voids and permeability, in which the stored geothermal fluid can be exploited. A very important feature of a geothermal heat reservoir is that cold water outside the heat reservoir seeps into the thermal aquifer, and then passes through the heating zone at the bottom of the heat reservoir. Under the condition of strong and continuous conductive heat flow supply, the cold water is heated, and the heated cold water is used as a heat source for heat storage and heat exchange of an external heat exchange device.

[0003] Existing heat exchange devices use a number of arrays of coil pipes for heat storage, storing heat inside the coil pipes. This structure requires a number of diversion pipes to divert the heat source into different coil pipes for storage. During heat exchange, all the cold water entering the device absorbs the heat inside the coil pipes for heat exchange. This results in good heat exchange effect of the cold water near the coil pipes, while poor heat exchange effect of the cold water at other positions, leading to uneven heat exchange and thus low heat exchange efficiency. Summary of the Invention

[0004] In view of the above problems in the prior art, the present invention provides an efficient geothermal heat storage and heat exchange device, which is achieved through the following technical solutions: An efficient geothermal heat storage and heat exchange device includes a heat storage tank. The front and rear sides of the top of the heat storage tank are respectively connected with a heat source inlet pipe and a heat source outlet pipe. The middle position of the bottom of the heat storage tank is connected with a comprehensive outlet pipe. A heat storage structure and a heat exchange structure are arranged in the heat storage tank, and the heat storage structure and the heat exchange structure are arranged at intervals. The heat storage structure includes a plurality of heat storage rings, and the heat storage rings are vertically distributed at intervals in the heat storage tank. The heat exchange structure includes a heat exchange pipe, and the heat exchange pipe is sleeved on the outer ring of the vertically arranged heat storage ring, and the water inlet end of the heat exchange pipe penetrates to the outside of the heat storage tank.

[0005] Preferably, the heat storage structure further includes a number of heat storage rods. A plurality of heat storage rods are fixedly installed in a circular array between adjacent heat storage rings. The bottom heat storage ring is fixedly installed on the bottom wall of the heat storage tank through an extended heat storage rod, and the top heat storage ring is fixedly connected to the top wall of the heat storage tank through an extended heat storage rod.

[0006] Preferably, the heat storage ring includes a plurality of small rings, a plurality of middle rings and a plurality of large rings. The plurality of small rings are vertically arranged at the middle position of the heat storage tank. The plurality of middle rings are vertically arranged in the heat storage tank and sleeved on the outer ring of the small rings. The plurality of large rings are vertically arranged in the heat storage tank and sleeved on the outer ring of the middle rings. The central axes of the small rings, the middle rings and the large rings are the same. Adjacent small rings, middle rings and large rings are fixedly connected through heat storage rods and fixed on the bottom wall of the heat storage tank through heat storage rods.

[0007] Preferably, the heat exchange tubes include spiral small tubes and spiral large tubes. The spiral small tubes are spirally arranged between the small ring and the middle ring, and the spiral large tubes are arranged on the outer ring of the vertically arranged large ring. The water inlet end of the spiral small tubes penetrates through the bottom wall of the heat storage tank and extends to the outside, and the water outlet end of the spiral large tubes penetrates through the bottom wall of the heat storage tank and extends to the outside. The spiral small tubes and the spiral large tubes are communicated at the top of the heat storage tank.

[0008] Preferably, support rods are fixedly installed between adjacent tubes of the spiral small tubes and between adjacent tubes of the spiral large tubes. The bottom of the spiral small tubes and the bottom of the spiral large tubes are fixedly connected to the bottom wall of the heat storage tank through extended support rods, and the top of the spiral small tubes and the top of the spiral large tubes are fixedly connected to the top wall of the heat storage tank through extended support rods.

[0009] Preferably, a cleaning structure is installed inside the heat storage tank, and a driving structure is installed at the top outside the heat storage tank. The cleaning structure is driven by the driving structure. The cleaning structure includes a plurality of cleaning rods and a number of high-temperature resistant bristles. The plurality of cleaning rods are respectively arranged inside the small ring, between the middle ring and the large ring, and on the outer ring of the spiral large tubes. The bristles are evenly arranged on the outer ring of the cleaning rods. The bristles on the cleaning rods inside the small ring contact the inner ring of the small ring and the heat storage rods, and the bristles on the cleaning rods between the middle ring and the large ring contact the outer ring of the middle ring, the inner ring of the large ring, and the heat storage rods.

[0010] Preferably, the driving structure includes a face gear, a face tooth ring, four planet gears, a planet carrier, and a driving motor. A sliding seat is fixedly installed at the top of the heat storage tank. The face gear and the face tooth ring are both rotatably installed on the top of the sliding seat. The face tooth ring is placed on the outer ring of the face gear. Two of the planet gears are fixedly connected through the planet carrier to form a planet gear set. The two planet gears of the planet gear set are respectively meshed with the face gear and the face tooth ring. Two sets of the planet gear sets are symmetrically arranged on both sides of the top of the face gear and the face tooth ring. The driving motor is installed on the top of the face gear.

[0011] Preferably, perforations, middle ring sliding holes, and large ring sliding holes are opened at the same positions of the heat storage tank and the sliding seat. The cleaning rods inside the small ring pass through the perforations and are fixedly connected to the middle position of the bottom of the face gear. The cleaning rods between the middle ring and the large ring pass through the middle ring sliding holes and are fixedly connected to the outer ring of the face gear. The cleaning rods on the outer ring of the spiral large tubes pass through the large ring sliding holes and are fixedly connected to the inner ring of the face tooth ring.

[0012] Preferably, a heat storage layer is fixedly installed on the inner wall of the heat storage tank. Perforations, middle-ring sliding holes, and large-ring sliding holes are also formed at the corresponding positions of the top and bottom of the heat storage layer and the sliding seats. The bottom of the cleaning rod between the middle ring and the large ring and the bottom of the cleaning rod on the outer circle of the spiral large pipe are slidably arranged in the middle-ring sliding holes and large-ring sliding holes at the bottom of the heat storage layer. The bristles on the cleaning rod on the outer circle of the spiral large pipe are in contact with the outer wall of the spiral large pipe and the inner wall of the heat storage layer. A heat preservation cover is fixedly installed on the top of the heat storage tank. The diameter of the heat preservation cover is larger than that of the heat storage tank. The bottom of the heat preservation cover is fixedly installed on the top of the outer circle of the heat storage tank. Limit plates are fixedly installed on the top and bottom of the inner side of the heat preservation cover. The planet carrier rotates through the limit plates. The heat preservation cover encloses the driving structure except the driving motor inside. The driving motor is fixedly installed on the top of the heat preservation cover. The output end of the driving motor penetrates through the heat preservation cover and is fixedly connected with the face gear.

[0013] Preferably, heightening frames are fixedly installed around the bottom of the heat storage tank. An inspection door is arranged on the side wall of the heat preservation cover. A sealed heat preservation strip is installed at the connection between the inspection door and the heat preservation cover.

[0014] In summary, the beneficial technical effects of the present invention are as follows: The present invention uses multiple heat storage rings and a number of heat storage rods for heat storage. The vertically spaced heat storage rings and the heat storage rods therebetween form a three-dimensional heat storage space, greatly increasing the heat storage area. The multiple heat storage rings composed of a number of small rings, middle rings, and large rings, in cooperation with the heat storage rods, absorb and store heat from different levels and positions, effectively improving the heat storage capacity. Moreover, the spiral small pipe and the spiral large pipe are arranged at intervals with the heat storage rings and the heat storage layer. The spiral small pipe and the spiral large pipe are respectively arranged between the small ring and the middle ring, and between the large ring and the heat storage layer, enabling both sides of the cold water path to absorb heat. It can effectively absorb the heat of the heat storage rings and heat storage rods on both sides of the spiral small pipe and the spiral large pipe. And the two are connected, extending the flow path of the cold water in the device, enabling the cold water to fully contact the heat storage structure. When the cold water is in the spiral small pipe, it absorbs the heat of the small ring, the middle ring, and the heat storage rods therebetween. After entering the spiral large pipe, it can absorb the heat of the large ring and the heat storage layer, increasing the contact area between the heat storage structure and the heat exchange structure, thereby increasing the heat exchange area and significantly improving the heat exchange efficiency. A cleaning structure is also installed in the heat storage tank. The cleaning structure includes multiple cleaning rods with high-temperature resistant bristles, which are distributed at key positions such as inside the small ring, between the middle ring and the large ring, and on the outer circle of the spiral large pipe. By driving the face gear to rotate by the driving motor and using the transmission of the planetary gear set, the face gear ring and the related cleaning rods move, enabling comprehensive cleaning of the heat storage rings, heat storage rods, heat storage layer, etc., avoiding the problem of reduced heat exchange effect caused by impurity adhesion after long-term use, maintaining the high-efficiency heat exchange performance of the device, and at the same time reducing the manual maintenance cost. A heat preservation cover with a diameter larger than that of the heat storage tank is installed on the top of the heat storage tank, enclosing the driving structure except the driving motor inside, reducing the heat dissipation at the top of the device and ensuring the heat storage and heat exchange effect. Description of the Drawings

[0015] Figure 1 It is a schematic diagram for showing the internal structure of the present invention.

[0016] Figure 2 It is a side view for showing the present invention.

[0017] Figure 3 It is a schematic diagram for showing the driving structure.

[0018] Figure 4 It is a schematic diagram for showing the heat exchange structure.

[0019] Figure 5 It is a schematic diagram for showing the heat storage structure.

[0020] Reference numerals: 1, heat storage tank; 101, heat source inlet pipe; 102, heat source outlet pipe; 103, comprehensive outlet pipe; 2, heat storage structure; 201, heat storage ring; 2011, small ring; 2012, middle ring; 2013, large ring; 202, heat storage rod; 3, heat exchange structure; 301, heat exchange pipe; 3011, spiral small pipe; 3012, spiral large pipe; 4, support rod; 5, cleaning structure; 501, cleaning rod; 502, brush hair; 6, driving structure; 601, face gear; 602, face gear ring; 603, planetary gear; 604, planetary carrier; 605, driving motor; 606, planetary gear set; 7, sliding seat; 8, perforation; 9, middle ring sliding hole; 10, large ring sliding hole; 11, heat storage layer; 12, heat preservation cover; 1201, limiting plate; 13, heightening frame; 14, maintenance door. Detailed implementation manners

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Embodiment As Figures 1-5 shown, a geothermal heat storage and efficient heat exchange device disclosed by the present invention includes a heat storage tank 1. The front and rear sides of the top of the heat storage tank 1 are respectively connected with a heat source inlet pipe 101 and a heat source outlet pipe 102. The heat source inlet pipe 101 is connected with an external heat source pipeline and conveys the heat source through a water pump. The heat source outlet pipe 102 is connected with an external return water pipeline and conveys the heat source after heat supply through a water pump. The middle position of the bottom of the heat storage tank 1 is connected with a comprehensive outlet pipe 103. A valve is installed on the comprehensive outlet pipe 103. A heat storage structure 2 and a heat exchange structure 3 are arranged in the heat storage tank 1. The heat storage structure 2 and the heat exchange structure 3 are arranged at intervals. The heat storage structure 2 includes a plurality of heat storage rings 201. The heat storage rings 201 are vertically arranged at intervals in the heat storage tank 1. The heat exchange structure 3 includes a heat exchange pipe 301. The heat exchange pipe 301 is sleeved on the outer ring of the vertically arranged heat storage ring 201. The water inlet end of the heat exchange pipe 301 penetrates to the outside of the heat storage tank 1.

[0023] Furthermore, the heat storage structure 2 further includes a plurality of heat storage rods 202. A plurality of heat storage rods 202 fixedly installed in an annular array are arranged between adjacent heat storage rings 201. The bottom heat storage ring 201 is fixedly installed on the bottom wall of the heat storage tank 1 through an extended heat storage rod 202, and the top heat storage ring 201 is fixedly connected to the top wall of the heat storage tank 1 through an extended heat storage rod 202.

[0024] Furthermore, the heat storage ring 201 includes a plurality of small rings 2011, a plurality of middle rings 2012, and a plurality of large rings 2013. A plurality of the small rings 2011 are vertically arranged at the middle position of the heat storage tank 1. A plurality of the middle rings 2012 are vertically arranged in the heat storage tank 1 and sleeved on the outer circle of the small rings 2011. A plurality of the large rings 2013 are vertically arranged in the heat storage tank 1 and sleeved on the outer circle of the middle rings 2012. The central axes of the small rings 2011, the middle rings 2012, and the large rings 2013 are the same. Adjacent small rings 2011, middle rings 2012, and large rings 2013 are fixedly connected through heat storage rods 202 and fixed to the bottom wall of the heat storage tank 1 through heat storage rods 202.

[0025] Furthermore, the heat exchange tube 301 includes a spiral small tube 3011 and a spiral large tube 3012. The spiral small tube 3011 is spirally arranged between the small ring 2011 and the middle ring 2012. The spiral large tube 3012 is arranged on the outer circle of the vertically arranged large ring 2013. The water inlet end of the spiral small tube 3011 penetrates through the bottom wall of the heat storage tank 1 and extends to the outside to communicate with an external water inlet pipe. A water pump is arranged on the external water inlet pipe. The water outlet end of the spiral large tube 3012 penetrates through the bottom wall of the heat storage tank 1 and extends to the outside to communicate with an external heat-requiring device. The spiral small tube 3011 and the spiral large tube 3012 are connected and arranged at the top of the heat storage tank 1.

[0026] Furthermore, support rods 4 are fixedly installed between adjacent pipes of the spiral small tube 3011 and between adjacent pipes of the spiral large tube 3012. The bottom of the spiral small tube 3011 and the bottom of the spiral large tube 3012 are fixedly connected to the bottom wall of the heat storage tank 1 through extended support rods 4. The top of the spiral small tube 3011 and the top of the spiral large tube 3012 are fixedly connected to the top wall of the heat storage tank 1 through extended support rods 4.

[0027] Further, a cleaning structure 5 is installed in the heat storage tank 1. A water inlet pipe for introducing cleaning water is connected to the side wall of the heat storage tank 1. A driving structure 6 is installed at the top outside the heat storage tank 1. The cleaning structure 5 is driven by the driving structure 6. The cleaning structure 5 includes a plurality of cleaning rods 501 and a number of high-temperature resistant bristles 502. The plurality of cleaning rods 501 are respectively arranged inside the small ring 2011, between the middle ring 2012 and the large ring 2013, and on the outer circle of the spiral large pipe 3012. The bristles 502 are evenly arranged on the outer circle of the cleaning rods 501. The bristles 502 on the cleaning rods 501 inside the small ring 2011 are in contact with the inner circle of the small ring 2011 and the heat storage rod 202. The bristles 502 on the cleaning rods 501 between the middle ring 2012 and the large ring 2013 are in contact with the outer circle of the middle ring 2012, the inner circle of the large ring 2013 and the heat storage rod 202.

[0028] Further, the driving structure 6 includes a face gear 601, a face gear ring 602, four planet gears 603, a planet carrier 604 and a driving motor 605. A sliding seat 7 is fixedly installed at the top of the heat storage tank 1. The face gear 601 and the face gear ring 602 are both rotatably installed at the top of the sliding seat 7. The face gear ring 602 is placed outside the face gear 601. Two of the planet gears 603 are fixedly connected through the planet carrier 604 to form a planet gear set 606. The two planet gears 603 of the planet gear set 606 are respectively meshed with the face gear 601 and the face gear ring 602. Two sets of the planet gear set 606 are provided and symmetrically arranged on both sides of the top of the face gear 601 and the face gear ring 602. The driving motor 605 is installed on the top of the face gear 601.

[0029] Further, through holes 8, middle ring sliding holes 9 and large ring sliding holes 10 are opened at the same positions of the heat storage tank 1 and the sliding seat 7. The cleaning rod 501 inside the small ring 2011 passes through the through hole 8 and is fixedly connected to the middle position at the bottom of the face gear 601. The cleaning rod 501 between the middle ring 2012 and the large ring 2013 passes through the middle ring sliding hole 9 and is fixedly connected to the outer circle of the face gear 601. The cleaning rod 501 on the outer circle of the spiral large pipe 3012 passes through the large ring sliding hole 10 and is fixedly connected to the inner circle of the face gear ring 602.

[0030] Further, a heat storage layer 11 is fixedly installed on the inner wall of the heat storage tank 1. Perforations 8, middle ring sliding holes 9, and large ring sliding holes 10 are also formed at corresponding positions on the top and bottom of the heat storage layer 11 and the sliding seat 7. The bottom of the cleaning rod 501 between the middle ring 2012 and the large ring 2013 and the bottom of the cleaning rod 501 on the outer circle of the spiral large pipe 3012 are slidably arranged in the middle ring sliding hole 9 and the large ring sliding hole 10 at the bottom of the heat storage layer 11. The bristles 502 on the cleaning rod 501 on the outer circle of the spiral large pipe 3012 are in contact with the outer wall of the spiral large pipe 3012 and the inner wall of the heat storage layer 11. A heat preservation cover 12 is fixedly installed on the top of the heat storage tank 1. The diameter of the heat preservation cover 12 is larger than that of the heat storage tank 1. The bottom of the heat preservation cover 12 is fixedly installed on the top of the outer circle of the heat storage tank 1. Limiting plates 1201 are fixedly installed on the top and bottom of the inner side of the heat preservation cover 12. The planet carrier 604 is rotatably penetrated through the limiting plates 1201. The heat preservation cover 12 encloses the driving structure 6 except for the driving motor 605 inside. The driving motor 605 is fixedly installed on the top of the heat preservation cover 12. The output end of the driving motor 605 penetrates through the heat preservation cover 12 and is fixedly connected to the face gear 601.

[0031] Further, height increasing frames 13 are fixedly installed around the bottom of the heat storage tank 1. An inspection door 14 is formed on the side wall of the heat preservation cover 12. A sealing and heat preservation strip is installed at the connection between the inspection door 14 and the heat preservation cover 12.

[0032] Specific implementation manner of this example: The liquid heat source enters the heat storage tank 1 through the heat source inlet pipe 101 and rises with the water level, and flows out from the heat source outlet pipe 102. During the liquid flow, the heat storage ring 201, the heat storage rod 202, and the heat storage layer 11 absorb the heat of the heat source and store it. After the heat storage process is completed, the water pumps on the heat source inlet pipe 101 and the heat source outlet pipe 102 are closed, and the valve on the comprehensive outlet pipe 103 is opened to discharge the heat source remaining in the heat storage tank 1. When heat exchange is carried out, cold water enters the heat storage tank 1 from the spiral small pipe 3011 and finally discharges through the spiral large pipe 3012 to achieve heat exchange. After the cold water enters the spiral small pipe 3011, it absorbs the heat of the small ring 2011, the middle ring 2012, and the heat storage rod 202 between the small ring 2011 and the middle ring 2012. After the cold water enters the spiral large pipe 3012 from the spiral small pipe 3011, it absorbs the heat of the large ring 2013 and the heat storage layer 11 again, finally realizing an efficient heat exchange process; In order to ensure the heat storage effect, it is necessary to regularly clean the heat storage structure 2. When cleaning, water is added to the heat storage tank 1 from the water inlet pipe, and the surface gear 601 is driven to rotate by the driving motor 605. The planetary gear set 606 meshing with it also rotates accordingly, thereby driving the surface gear ring 602 to rotate. The rotation of the surface gear 601 drives the cleaning rod 501 connected to the bottom to rotate to clean the inner ring of the small ring 2011, and also drives the cleaning rod 501 connected to the outer ring to move along the middle ring sliding hole 9 to clean the outer ring of the middle ring 2012 and the inner ring of the large ring 2013. The rotation of the surface gear ring 602 drives the connected cleaning rod 501 to move along the large ring sliding hole 10 to clean the heat storage layer 11. The sewage after cleaning is discharged from the comprehensive outlet pipe 103.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: They can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A geothermal heat storage and high-efficiency heat exchange device, comprising a heat storage tank (1), characterized in that: The front and rear sides of the top of the heat storage tank (1) are respectively connected to a heat source inlet pipe (101) and a heat source outlet pipe (102); the middle position of the bottom of the heat storage tank (1) is connected to a comprehensive outlet pipe (103); a heat storage structure (2) and a heat exchange structure (3) are arranged in the heat storage tank (1); the heat storage structure (2) and the heat exchange structure (3) are arranged at intervals; the heat storage structure (2) comprises a plurality of heat storage rings (201); the heat storage rings (201) are vertically spaced and distributed in the heat storage tank (1); the heat exchange structure (3) comprises a heat exchange pipe (301); the heat exchange pipe (301) is sleeved on the outer ring of the vertically arranged heat storage ring (201); and the water inlet end of the heat exchange pipe (301) penetrates to the outside of the heat storage tank (1).

2. A geothermal heat storage and high-efficiency heat exchange device according to claim 1, characterized in that: The heat storage structure (2) further comprises a plurality of heat storage rods (202), wherein a plurality of heat storage rods (202) are fixedly installed in a circular array between adjacent heat storage rings (201).

3. A geothermal heat storage and high-efficiency heat exchange device according to claim 2, characterized in that: The heat storage ring (201) comprises a plurality of small rings (2011), a plurality of middle rings (2012) and a plurality of large rings (2013); the plurality of small rings (2011) are vertically arranged in the middle of the heat storage tank (1); the plurality of middle rings (2012) are sleeved on the outer rings of the small rings (2011); the plurality of large rings (2013) are sleeved on the outer rings of the middle rings (2012); and adjacent small rings (2011), middle rings (2012) and large rings (2013) are fixedly connected via a heat storage rod (202).

4. A geothermal heat storage and high-efficiency heat exchange device according to claim 3, characterized in that: The heat exchange tube (301) comprises a spiral small tube (3011) and a spiral large tube (3012); the spiral small tube (3011) is arranged between a small ring (2011) and a middle ring (2012); the spiral large tube (3012) is arranged on the outer ring of the large ring (2013); and the spiral small tube (3011) and the spiral large tube (3012) are connected and arranged at the top of the heat storage tank (1).

5. A geothermal heat storage and high-efficiency heat exchange device according to claim 4, characterized in that: Support rods (4) are fixedly installed between adjacent pipes of the spiral small pipes (3011) and between adjacent pipes of the spiral large pipes (3012).

6. A geothermal heat storage and high-efficiency heat exchange device according to claim 5, characterized in that: A cleaning structure (5) is installed in the heat storage tank (1), and a driving structure (6) is installed on the top of the outer side of the heat storage tank (1). The cleaning structure (5) is driven by the driving structure (6). The cleaning structure (5) comprises a plurality of cleaning rods (501) and a plurality of high temperature resistant bristles (502). The plurality of cleaning rods (501) are respectively arranged in a small ring (2011), between a middle ring (2012) and a large ring (2013), and on the outer ring of the spiral large tube (3012). The bristles (502) are evenly arranged on the outer ring of the cleaning rods (501).

7. A geothermal heat storage and high-efficiency heat exchange device according to claim 6, characterized in that: The driving structure (6) comprises a face gear (601), a face gear ring (602), four planetary gears (603), a planet carrier (604) and a driving motor (605); a slide seat (7) is fixedly mounted on the top of the heat storage tank (1); the face gear (601) and the face gear ring (602) are both rotatably mounted on the top of the slide seat (7); the two planetary gears (603) are fixedly connected via the planet carrier (604) to form a planetary gear set (606); the two planetary gears (603) of the planetary gear set (606) are respectively meshed with the face gear (601) and the face gear ring (602); and the driving motor (605) is mounted on the top of the face gear (601).

8. A geothermal heat storage and high-efficiency heat exchange device according to claim 7, characterized in that: The heat storage tank (1) and the slide seat (7) are provided with a through hole (8), a middle ring sliding hole (9) and a large ring sliding hole (10) at the same position; the cleaning rod (501) in the small ring (2011) passes through the through hole (8) and is fixedly connected to the bottom of the face gear (601); the cleaning rod (501) between the middle ring (2012) and the large ring (2013) passes through the middle ring sliding hole (9) and is fixedly connected to the outer ring of the face gear (601); the cleaning rod (501) on the outer ring of the spiral large tube (3012) passes through the large ring sliding hole (10) and is fixedly connected to the inner ring of the face gear ring (602).

9. A geothermal heat storage and high-efficiency heat exchange device according to claim 8, characterized in that: A heat storage layer (11) is fixedly mounted on the inner wall of the heat storage tank (1); a heat preservation cover (12) is fixedly mounted on the top of the heat storage tank (1); the bottom of the heat preservation cover (12) is fixedly mounted on the top of the outer ring of the heat storage tank (1); a limit plate (1201) is fixedly mounted on the bottom of the inner top of the heat preservation cover (12); the planet carrier (604) is rotatably inserted into the limit plate (1201); the drive motor (605) is fixedly mounted on the top of the heat preservation cover (12); and the output end of the drive motor (605) passes through the heat preservation cover (12) and is fixedly connected to the face gear (601).

10. A geothermal heat storage and high-efficiency heat exchange device according to claim 9, characterized in that: A heightening frame (13) is fixedly installed around the bottom of the heat storage tank (1), a maintenance door (14) is opened on the side wall of the insulation cover (12), and a sealing insulation strip is installed at the connection between the maintenance door (14) and the insulation cover (12).

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