A geothermal recharge device

Abstract

This application discloses a geothermal reinjection device, belonging to the field of geothermal engineering technology. It includes: a tank with a first dividing plate to divide the tank's internal cavity into an upper inner cavity and a second inner cavity; an input pipe connected to the upper inner cavity; several driving components located at the bottom of the second inner cavity; a hollow pipe with its first end connected to the output end of the driving components; a hollow pipe with its second end rotatably connected to the first dividing plate and communicating with the upper inner cavity; an output pipe with its first end extending into the second inner cavity; and an output component connected to the output assembly. The sidewall of the hollow pipe has several filter mesh holes with pore sizes gradually increasing from the second end to the first end, and the sidewall of the output pipe has several output holes with pore sizes gradually decreasing from the second end to the first end. The geothermal reinjection device proposed in this application enhances the sedimentation and separation effect through zoned centrifugation; and through innovative pore size design, it improves the overall efficiency and impurity filtration effect of the geothermal reinjection device based on layered filtration.

Description

Technical Field

[0001] This application belongs to the field of geothermal engineering technology, and specifically relates to a geothermal reinjection device. Background Technology

[0002] With the continuous expansion and deepening of geothermal energy development and utilization, the pressure of geothermal reservoirs has decreased, and the geological environment and ecology have been affected. In order to achieve the sustainable utilization of geothermal energy resources, it is necessary to carry out geothermal water reinjection in combination with the characteristics of the reservoir, that is, to inject geothermal tailwater or normal temperature groundwater into the reservoir to achieve a balance between production and injection, and avoid problems such as reduced reservoir pressure, reduced production capacity, decreased temperature of produced fluid, tailwater discharge and subsidence.

[0003] However, during the geothermal water reinjection process, different types of physical or chemical blockages often occur, such as suspended solids blockage, gas blockage, microbial blockage, chemical precipitation blockage, expansion of viscous particles, and particle reorganization, which cause a decrease in reinjection efficiency, manifested as high reinjection pressure and reduced reinjection volume, which seriously restricts the development and utilization of geothermal energy.

[0004] Existing geothermal water reinjection treatment technologies mainly employ multi-stage equipment connected in series, such as hydrocyclones, sand filters, and cartridge filters. This results in high equipment investment, large footprint, and long construction periods. Furthermore, sand filters can only achieve coarse filtration and easy permeability, while cartridge filters have low throughput for high-precision filtration, require a large filtration area, and have long backwashing and regeneration times with high water consumption. The multi-stage equipment connection increases water resistance along the water treatment process, leading to increased pump head and power consumption. Filter cartridges are prone to clogging and require frequent replacement, increasing operating costs. Some filter cartridges are non-renewable, and when the particles are fine and have a high solids content, they become non-renewable and clogged after a period of use, failing to meet the requirements for continuous, complex, and multi-impurity separation of geothermal media.

[0005] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Summary of the Invention

[0006] To address the aforementioned issues, this application provides a geothermal reinjection device, comprising: a tank, an output pipe, an output component, and an input pipe. The tank is divided into an upper inner cavity and a second inner cavity by a first dividing plate. One end of the input pipe is connected to the side wall of the upper inner cavity. A plurality of driving components are arranged circumferentially at the bottom of the second inner cavity. A plurality of hollow pipes are provided within the second inner cavity. The first ends of the hollow pipes are connected to the output ends of the driving components in a corresponding manner. The second ends of the hollow pipes are rotatably connected to the first dividing plate and communicate with the upper inner cavity. The output pipe is coaxially arranged with the tank, with its first end extending into the second inner cavity and its second end extending to the outside of the tank to connect with the output component. The hollow tube has several filter holes on its sidewall, with the diameter of the filter holes gradually increasing from the second end to the first end of the hollow tube. The output tube has several output holes on its sidewall, with the diameter of the output holes gradually decreasing from the second end to the first end of the output tube.

[0007] Furthermore, the output component includes a drive motor, a screw rod, and an output tube. The outer wall of the second end of the output tube is connected to one end of the output tube. The drive motor is installed at the end of the second end of the output tube. The screw rod is placed inside the cavity of the output tube and is arranged coaxially with the output tube. One end of the screw rod is connected to the output end of the drive motor, and the other end of the screw rod extends toward the first end of the output tube.

[0008] Furthermore, the second inner cavity includes a working inner cavity, a collecting inner cavity, and a recycling cavity arranged vertically. The second inner cavity is provided with a second dividing plate that divides the working inner cavity and the collecting inner cavity, and a third dividing plate that divides the collecting inner cavity and the recycling cavity. The hollow through pipe and the output through pipe are located in the working inner cavity, and the driving component is embedded in the second dividing plate. The second dividing plate has several connecting holes that connect the working cavity and the collecting cavity, and the third dividing plate has several filter holes that connect the collecting cavity and the recycling cavity.

[0009] Furthermore, it also includes a recovery pipe and a booster pump. The booster pump is installed in the middle section of the recovery pipe, and the two ends of the recovery pipe are connected to the inner cavity and the recovery chamber, respectively.

[0010] Furthermore, it also includes a transmission rod, one end of which passes through the output pipe, the second dividing plate, and is coaxially connected to the spiral rod body. The other end of the transmission rod is connected to the cleaning plate on its side wall, and the output end of the cleaning plate is in contact with the upper surface of the third dividing plate. An impurity outlet is provided on the side wall of the tank. The impurity outlet is connected to the collection cavity. The bottom wall of the impurity outlet port is aligned with the upper surface of the third dividing plate.

[0011] Furthermore, an annular groove is formed on the upper surface of the first dividing plate, and several connecting tubes are arranged in a circular array on the lower surface of the first dividing plate. One end of the connecting tube is connected to the bottom of the annular groove, and the other end of the connecting tube is rotatably sleeved with a hollow through tube.

[0012] Furthermore, a predetermined distance is maintained between several filter mesh openings and the second end of the hollow tube.

[0013] Furthermore, the inner wall of the first end of the hollow tube adopts a conical structure, and several discharge holes are opened on the side wall of the first end of the hollow tube.

[0014] Furthermore, the hollow tube contains an auxiliary threaded rod arranged coaxially, with one end of the auxiliary threaded rod being connected to the inner wall of the first end of the hollow tube.

[0015] Furthermore, a predetermined height difference is maintained between the first end of the hollow conduit and the first end of the output conduit.

[0016] Compared with the prior art, this application has the following advantages: 1. The geothermal reinjection device proposed in this application transports external geothermal medium to the upper inner cavity of the tank through the input pipe, and then distributes it to the inner cavities of several hollow pipes, presenting a top-down flow state. Several driving components drive several hollow pipes to rotate, and the hollow pipes form a swirling motion to realize the centrifugal operation of the geothermal medium in the hollow pipes. The sedimentation and separation effect is enhanced through zoned centrifugation. 2. Combining the principle of layered filtration, this application utilizes several filter mesh openings on the sidewall of the hollow pipe, with the mesh size gradually increasing from the second end to the first end. This creates a layered filtration effect. Furthermore, the application incorporates several output holes on the sidewall of the output pipe, with the mesh size gradually decreasing from the second end to the first end. This ensures a correspondence between the large-diameter output holes and the small-diameter filter mesh openings, guaranteeing the output rate of the finely filtered medium in the upper part of the second inner cavity. The correspondence between the small-diameter output holes and the large-diameter filter mesh openings allows for the removal of large particles from the hollow pipe. A portion of these particles settles at the bottom of the second inner cavity, while the remaining portion is output through the small-diameter output holes, achieving secondary filtration of the medium. Through this innovative mesh size design, the output rate of the finely filtered medium is increased, while the output rate of the coarsely filtered medium is reduced, based on layered filtration. This enhances the overall efficiency and impurity filtration effect of the geothermal reinjection device, meeting the technical requirements of high water demand.

[0017] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the geothermal reinjection device in an embodiment of the present invention is shown; Figure 2 A cross-sectional schematic diagram of the geothermal reinjection device in an embodiment of the present invention is shown; Figure 3 It shows Figure 2An enlarged schematic diagram of structure A in the middle.

[0020] In the diagram, 1. Tank body; 101. Upper inner cavity; 102. Second inner cavity; 1021. Working inner cavity; 1022. Collection inner cavity; 1023. Recovery cavity; 2. Output pipe; 201. Output hole; 3. Output assembly; 301. Drive motor; 302. Helical rod; 303. Output pipe; 4. Input pipe; 5. First dividing plate; 501. Annular groove; 502. Connecting pipe; 6. Drive component; 7. Hollow pipe; 701. Filter screen; 702. Discharge hole; 703. Auxiliary threaded rod; 8. Second dividing plate; 9. Third dividing plate; 10. Recovery pipe; 11. Booster pump; 12. Transmission rod; 18. Cleaning plate; 19. Impurity output hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] This invention provides a geothermal reinjection device. Figure 1 A schematic diagram of a geothermal reinjection device according to an embodiment of the present invention is shown, in conjunction with reference to the reference. Figure 2 The geothermal reinjection device of the present invention includes: a tank 1, an output pipe 2, an output component 3, and an input pipe 4; The tank body 1 is provided with a first dividing plate 5. The first dividing plate 5 is coaxially arranged with the tank body 1. The first dividing plate 5 divides the inner cavity of the tank body 1 into an upper inner cavity 101 and a second inner cavity 102 arranged in an upper and lower position. The side wall of the upper inner cavity 101 is connected to one end of the input pipe 4, and the geothermal medium is transported to the upper inner cavity 101 through the input pipe 4. The second inner cavity 102 has a plurality of driving components 6 arranged in a circular array on the bottom. Correspondingly, the second inner cavity 102 is provided with a plurality of hollow tubes 7. The first ends of the plurality of hollow tubes 7 are connected to the output ends of the plurality of driving components 6 in a one-to-one transmission manner. The second ends of the hollow tubes 7 are rotatably connected to the first dividing plate 5 and connected to the upper inner cavity 101. The plurality of driving components 6 drive the plurality of hollow tubes 7 to rotate. The connection between the inner cavity of the hollow tube 7 and the inner cavity of the upper inner cavity 101 is realized based on the second ends of the hollow tubes 7.

[0023] Correspondingly, the output pipe 2 is arranged coaxially with the tank body 1. The first end of the output pipe 2 extends into the second inner cavity 102, and the second end of the output pipe 2 passes through the upper inner cavity 101 and extends to the outside of the tank body 1. The second end of the output pipe 2 is connected to the output component 3. The hollow tube 7 has a plurality of filter mesh holes 701 arranged along the axial direction on its side wall. The diameter of the filter mesh holes 701 gradually increases from the second end to the first end of the hollow tube 7. The output tube 2 has a plurality of output holes 201 arranged along the axial direction on its side wall. The diameter of the output holes 201 gradually decreases from the second end to the first end of the output tube 2.

[0024] In actual use, the geothermal reinjection device proposed in this invention delivers external geothermal medium to the upper inner cavity 101 of the tank 1 via the input pipe 4, and then distributes it into the inner cavities of several hollow pipes 7, presenting a top-down flow state. Several driving components 6 drive several hollow pipes 7 to rotate, and the hollow pipes 7 form a swirling motion to achieve centrifugal operation of the geothermal medium inside the hollow pipes 7. The sedimentation and separation effect is enhanced through zoned centrifugation.

[0025] In this application, the aperture of several filter mesh holes 701 on the sidewall of the hollow tube 7 gradually increases from the second end (upper end) to the first end (lower end) of the hollow tube 7, achieving a layered filtration effect based on the several filter mesh holes 701; and in conjunction with the aperture of several output holes 201 on the sidewall of the output tube 2 gradually decreasing from the second end to the first end of the output tube 2, the large-diameter output holes 201 correspond to the small-diameter filter mesh holes 701, ensuring the output rate of the medium after fine filtration in the upper part of the second inner cavity 102; and the small-diameter output holes 201 correspond to the large-diameter filter mesh holes 701. 01 forms a corresponding structure. Through the filtration of the large-aperture filter mesh 701, large particles are discharged from the hollow pipe 7. Some of these particles settle at the bottom of the second inner cavity 102, while others are output through the small-aperture output holes 201. This reduces the output rate of the medium after coarse filtration at the bottom and achieves secondary filtration of the medium. Through the innovative design of the pore size, the output rate of the medium after fine filtration is increased and the output rate of the medium after coarse filtration is reduced on the basis of layered filtration, thereby improving the overall efficiency and impurity filtration effect of the geothermal reinjection device.

[0026] The output component 3 includes a drive motor 301, a spiral rod 302, and an output pipe 303. The outer wall of the second end of the output pipe 2 is connected to one end of the output pipe 303, through which the medium inside the output pipe 2 is output to the outside. The drive motor 301 is installed at the second end of the output pipe 2. The spiral rod 302 is built into the inner cavity of the output pipe 2 and is coaxially arranged with the output pipe 2. One end of the spiral rod 302 is connected to the output end of the drive motor 301, and the other end of the spiral rod 302 extends toward the first end of the output pipe 2.

[0027] In actual use, the drive motor 301 is started to rotate the spiral rod 302, giving the medium in the output pipe 2 an upward spiral driving force, thereby guiding the medium through the output pipe 303 to complete the output to the outside.

[0028] In this embodiment, a second dividing plate 8 and a third dividing plate 9 are also included. The second inner cavity 102 is provided with the second dividing plate 8 and the third dividing plate 9 arranged coaxially and spaced apart from the tank body 1, thereby dividing the second inner cavity 102 into a working inner cavity 1021, a collecting inner cavity 1022 and a recycling cavity 1023.

[0029] The working cavity 1021, the collecting cavity 1022 and the recovery cavity 1023 are arranged vertically. The hollow pipe 7 and the output pipe 2 are located in the working cavity 1021. The driving component 6 is embedded in the second dividing plate 8. The second dividing plate 8 has several connecting holes that connect the working inner cavity 1021 and the collecting inner cavity 1022, and the third dividing plate 9 has several filter holes that connect the collecting inner cavity 1022 and the recovery cavity 1023.

[0030] By dividing the second inner cavity 102 into an operating inner cavity 1021, a collecting inner cavity 1022, and a recovery cavity 1023, two separate inner cavities are added while ensuring the centrifugal operation of the hollow pipe 7 and the medium output of the output pipe 2. The medium in the tank 1 is statically filtered through the collecting inner cavity 1022 and the filter holes to improve the sedimentation rate of impurities in the medium; at the same time, the recovery cavity 1023 collects the medium after static filtration.

[0031] Correspondingly, this embodiment also includes a recovery pipe 10 and a booster pump 11. The recovery pipe 10 is located outside the tank 1, and the booster pump 11 is installed in the middle section of the recovery pipe 10. The two ends of the recovery pipe 10 are respectively connected to the upper inner cavity 101 and the recovery cavity 1023. The booster pump 11 guides the medium in the recovery cavity 1023 to flow into the upper inner cavity 101 to form a circulation operation.

[0032] It also includes a transmission rod 12, one end of which passes through the output pipe 2, the second dividing plate 8 and is coaxially connected to the spiral rod body 302. The other end of the transmission rod 12 is connected to the cleaning plate 18 on its side wall. The output end of the cleaning plate 18 is attached to the upper surface of the third dividing plate 9.

[0033] The side wall of the tank 1 has an impurity output hole 19, which is connected to the collection cavity 1022. The bottom wall of the port of the impurity output hole 19 is connected to the upper surface of the third dividing plate 9.

[0034] In this embodiment, the outer wall of the transmission rod 12 is sealed and rotated with the side wall of the output pipe 2 and the second dividing plate 8. The drive motor 301 drives the spiral rod body 302 to rotate the transmission rod 12, which in turn drives the cleaning plate 18 to clean the sedimented impurities on the upper surface of the third dividing plate 9. The impurities in the collection cavity 1022 are discharged through the open impurity output hole 19, so as to avoid the accumulation of impurities in the collection cavity 1022 and the blockage of the filter hole.

[0035] refer to Figure 3 An annular groove 501 is formed on the upper surface of the first dividing plate 5, and a plurality of connecting tubes 502 are arranged in a circular array on the lower surface of the first dividing plate 5. One end of the connecting tube 502 is connected to the bottom of the annular groove 501, and the other end of the connecting tube 502 is rotatably sleeved to the hollow through tube 7.

[0036] refer to Figure 2 Each of the filter meshes 701 maintains a predetermined distance from the second end of the hollow tube 7. The bottommost filter mesh 701 is set to maintain a predetermined distance from the second end of the hollow tube 7 to provide space for large particles of impurities to settle.

[0037] Correspondingly, the inner wall of the first end of the hollow tube 7 adopts a conical structure, and several discharge holes 702 are opened on the side wall of the first end of the hollow tube 7 so that large particles of impurities in the hollow tube 7 can be discharged from the hollow tube 7 in a timely manner after centrifugation, thus ensuring the stability of the centrifugation operation of the hollow tube 7.

[0038] In addition, the port orientation of the material hole 309 is the same as the outward extension direction of the inner wall of the first end of the hollow tube 7, which improves the smoothness of the impurity discharge process.

[0039] The hollow tube 7 has an auxiliary threaded rod 703 arranged coaxially inside. One end of the auxiliary threaded rod 703 is connected to the inner wall of the first end of the hollow tube 7. When the hollow tube 7 is driven to rotate by the driving component 6, the auxiliary threaded rod 703 is driven to rotate synchronously, providing an upward rotational driving force for the medium in the hollow tube 7.

[0040] In this embodiment, a predetermined height difference is maintained between the first end of the hollow tube 7 and the first end of the output tube 2 to reduce the probability of large particulate impurities entering the hollow tube 7.

[0041] In actual use, the geothermal reinjection device proposed in this invention delivers external geothermal medium to the upper inner cavity 101 of the tank 1 via the input pipe 4, and then distributes it to the corresponding hollow pipe 7 inner cavity via the connecting pipe 502 for top-down flow. Several driving components 6 drive several hollow pipes 7 to rotate, and the hollow pipes 7 form a swirling motion to achieve centrifugal operation of the geothermal medium in the hollow pipes 7. Impurities in the medium in the hollow pipes 7 are separated to the side wall of the hollow pipes 7, while the central part is driven by the auxiliary threaded rod 703 to spirally rise to the first end of the hollow pipe 7, and after colliding with the inner wall of the first end of the hollow pipe 7, it is reintroduced into the centrifugal operation of the hollow pipe 7.

[0042] To better describe the centrifugal operation of this application, the hollow pipe 7 is divided into upper and lower parts in the vertical direction. Based on the structural design of several filter mesh holes 701 with smaller diameters at the top and larger diameters at the bottom, and the axial distribution density of several filter mesh holes 701 gradually increasing from the second end to the first end of the hollow pipe 7, the upper part of the hollow pipe 7 first performs fine filtration of the medium. Combined with the structural design of several output holes 201 with larger diameters at the top and smaller diameters at the bottom, the output efficiency of the medium after fine filtration is improved. Then, the lower part of the hollow pipe 7 first performs coarse filtration of the medium, which allows large particles to be removed from the hollow pipe 7. Some of these particles settle at the bottom of the second inner cavity 102, while others are output through the small-diameter output holes 201. This reduces the output rate of the medium after coarse filtration in the lower part and achieves secondary filtration of the medium. Through the innovative design of the hole size, the output rate of the medium after fine filtration is improved and the output rate of the medium after coarse filtration is reduced on the basis of layered filtration, thereby improving the overall efficiency and impurity filtration effect of the geothermal reinjection device.

[0043] The medium that settles at the bottom of the second inner cavity 102 enters the collection inner cavity 1022 through the connecting hole for static settling, so that impurities accumulate in the collection inner cavity 1022. The statically filtered liquid falls into the recovery cavity 1023 through the filter hole. The liquid is then guided into the upper inner cavity 101 by the recovery pipe 10 and the booster pump 11, and re-involved in the geothermal reinjection process to achieve internal circulation of the system.

[0044] During the process of driving the spiral rod 302 to rotate and output the medium, the cleaning plate 18 is simultaneously driven to rotate, cleaning the upper surface of the third dividing plate 9 to prevent impurities from solidifying. After a certain working time, the staff removes the impurities by opening the impurity output hole 19, maintaining the operational stability of the geothermal reinjection device of this application. Correspondingly, an intelligent control system can be selected for automated management and status monitoring to further improve safety and efficiency.

[0045] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they may refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.

[0046] It should be understood that all terms used to indicate orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of the present invention.

[0047] Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A geothermal reinjection device, characterized in that, include: The tank (1), output pipe (2), output component (3) and input pipe (4) are provided. The tank (1) is provided with a first dividing plate (5) to divide the inner cavity of the tank (1) into an upper inner cavity (101) and a second inner cavity (102). The side wall of the upper inner cavity (101) is connected to one end of the input pipe (4). The bottom of the second inner cavity (102) is arranged with a number of driving components (6) in a circular array. The second inner cavity (102) is provided with a number of hollow pipes (7). The first end of the number of hollow pipes (7) is connected to the output end of the number of driving components (6) in a corresponding transmission. The second end of the hollow pipes (7) is rotatably connected to the first dividing plate (5) and connected to the upper inner cavity (101). The output pipe (2) is arranged coaxially with the tank (1). The first end of the output pipe (2) extends into the second inner cavity (102). The second end of the output pipe (2) extends to the outside of the tank (1) and forms a connection with the output component (3). The hollow tube (7) has a plurality of filter holes (701) on its side wall. The diameter of the filter holes (701) gradually increases from the second end to the first end of the hollow tube (7). The output tube (2) has a plurality of output holes (201) on its side wall. The diameter of the output holes (201) gradually decreases from the second end to the first end of the output tube (2).

2. The geothermal reinjection apparatus of claim 1, wherein, The output component (3) includes a drive motor (301), a spiral rod (302) and an output tube (303). The outer wall of the second end of the output tube (2) is connected to one end of the output tube (303). The drive motor (301) is installed at the end of the second end of the output tube (2). The spiral rod (302) is built into the inner cavity of the output tube (2) and the spiral rod (302) and the output tube (2) are arranged coaxially. One end of the spiral rod (302) is connected to the output end of the drive motor (301), and the other end of the spiral rod (302) extends toward the first end of the output tube (2).

3. The geothermal reinjection device according to claim 2, characterized in that, The second inner cavity (102) includes a working inner cavity (1021), a collecting inner cavity (1022) and a recycling cavity (1023) arranged vertically. The second inner cavity (102) is provided with a second dividing plate (8) that divides the working inner cavity (1021) and the collecting inner cavity (1022) and a third dividing plate (9) that divides the collecting inner cavity (1022) and the recycling cavity (1023). The hollow pipe (7) and the output pipe (2) are located in the working inner cavity (1021). The driving component (6) is embedded in the second dividing plate (8). The second dividing plate (8) has several connecting holes that connect the working inner cavity (1021) and the collecting inner cavity (1022), and the third dividing plate (9) has several filter holes that connect the collecting inner cavity (1022) and the recycling cavity (1023).

4. The geothermal reinjection device according to claim 3, characterized in that, It also includes a recovery pipe (10) and a booster pump (11). The booster pump (11) is installed in the middle section of the recovery pipe (10). The two ends of the recovery pipe (10) are connected to the inner cavity (101) and the recovery cavity (1023), respectively.

5. The geothermal reinjection device according to claim 3, characterized in that, It also includes a transmission rod (12), one end of which passes through the output pipe (2), the second dividing plate (8) and is coaxially connected to the spiral rod body (302), and the other end of the transmission rod (12) is connected to the cleaning plate (18), and the output end of the cleaning plate (18) is in contact with the upper surface of the third dividing plate (9); The tank body (1) has an impurity output hole (19) on its side wall. The impurity output hole (19) is connected to the collection cavity (1022). The bottom wall of the port of the impurity output hole (19) is connected to the upper surface of the third dividing plate (9).

6. The geothermal reinjection device according to claim 1, characterized in that, An annular groove (501) is provided on the upper surface of the first dividing plate (5), and a plurality of connecting tubes (502) are arranged in a circular array on the lower surface of the first dividing plate (5). One end of the connecting tube (502) is connected to the bottom of the annular groove (501), and the other end of the connecting tube (502) is rotatably sleeved to the hollow through tube (7).

7. The geothermal reinjection device according to claim 6, characterized in that, A predetermined distance is maintained between each of the filter mesh openings (701) and the second end of the hollow tube (7).

8. The geothermal reinjection device according to claim 7, characterized in that, The inner wall of the first end of the hollow tube (7) adopts a conical structure, and several discharge holes (702) are opened on the side wall of the first end of the hollow tube (7).

9. The geothermal reinjection device according to claim 8, characterized in that, The hollow tube (7) has an auxiliary threaded rod (703) arranged coaxially inside, and one end of the auxiliary threaded rod (703) is connected to the inner wall of the first end of the hollow tube (7).

10. The geothermal reinjection device according to any one of claims 1-9, characterized in that, The first end of the hollow tube (7) and the first end of the output tube (2) maintain a predetermined height difference.

Images