A geothermal energy power generation system

Abstract

The application relates to the technical field of new energy, in particular to a geothermal energy power generation system, which comprises a machine shell, a steam turbine, a generator, an air outlet pipe, a filter cylinder and a communication pipe. The steam turbine is fixedly installed in the inside of the machine shell; the generator is fixedly installed outside the machine shell and is connected with the left side of the steam turbine; the air outlet pipe is fixedly installed on the right side of the machine shell and is communicated with the bottom of the steam turbine; the filter cylinder is fixedly installed in the inside of the machine shell and under the steam turbine; and the top end of the filter cylinder is communicated with the communication pipe. The setting of the one-way bearing makes the threaded rod move upwards when rotating, and the sliding column and the sliding ring are pushed downwards quickly by the compressed outer spring when the threaded rod stops rotating. The rough surface metal ring and the scraper are matched to process the steam entering the inside of the steam turbine, the degree of scale formation in the steam turbine and the pipeline is reduced, the service life of the geothermal energy power generation system is prolonged, and the workload of the maintenance of the steam turbine and the pipeline is reduced.

Description

Technical Field

[0001] This invention relates to the field of new energy technology, specifically to a geothermal power generation system. Background Technology

[0002] Geothermal power generation is a new type of power generation technology that uses underground hot water and steam as a power source. Its basic principle is similar to that of thermal power generation. It is also based on the principle of energy conversion. First, geothermal energy is converted into mechanical energy, and then mechanical energy is converted into electrical energy. The system that uses steam to generate electricity is to drive a steam turbine to generate electricity using geothermal steam. At present, this technology is relatively mature, safe and reliable in operation, and is the main form of geothermal power generation.

[0003] In the current geothermal power generation system that uses geothermal steam for power generation, the steam often contains a large amount of calcium carbonate, silicon dioxide, silicates and other substances, which cause a lot of precipitation and scaling inside the pipes and steam turbine. This not only increases the flow resistance in the pipes and increases energy consumption, but also affects the effective operation of the steam turbine.

[0004] Therefore, a geothermal power generation system is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a geothermal power generation system that, through the setting of a one-way bearing, causes the sliding column and sliding ring to move upward when the threaded rod rotates. When the threaded rod stops rotating, the compressed outer spring pushes the sliding column downward rapidly. In conjunction with the rough metal ring and scraper, the steam entering the turbine is treated, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A geothermal power generation system includes a casing, a steam turbine fixedly installed inside the casing, a generator fixedly installed outside the casing and connected to the left side of the steam turbine, an exhaust pipe fixedly installed on the right side of the casing and connected to the bottom of the steam turbine, a filter cartridge fixedly installed inside the casing and below the steam turbine, a connecting pipe connected to the top of the filter cartridge, an intake pipe connected to the bottom of the filter cartridge, one end of the intake pipe penetrating the casing and extending to the outside of the casing, and one end of the connecting pipe connected to the bottom of the steam turbine, a roughened metal ring fixedly installed on the inner wall of the filter cartridge, and a lower support frame fixedly installed in the inner cavity of the filter cartridge. An upper support frame is fixedly installed above the support frame. A threaded rod is rotatably installed on the top of the lower support frame. The bottom end of the threaded rod passes through the lower support frame and extends to the outside of the lower support frame. The top end of the threaded rod passes through the upper support frame and extends to the inside of the upper support frame. A threaded sleeve is threaded onto the outer surface of the threaded rod. A one-way bearing is fixedly installed on the outer surface of the threaded sleeve. A sliding column is fixedly installed on the outer surface of the one-way bearing. A sliding ring is fixedly installed on the outer surface of the sliding column through a connecting strip. A limit post is fixedly installed between the upper and lower support frames. The outer surface of the limit post is slidably connected to the inner surface of the connecting strip. An outer spring is fixedly installed on the top of the sliding post. The top of the outer spring is fixedly connected to the bottom of the upper support frame.

[0008] Preferably, the upper support frame has a control cavity inside, and a power shaft is rotatably installed inside the control cavity. The top end of the power shaft passes through the upper support frame and extends to the outside of the upper support frame. A lower transmission gear is fixedly installed at the top end of the threaded rod inside the control cavity, and an upper transmission gear is fixedly installed at the bottom end of the power shaft inside the control cavity.

[0009] Preferably, a central drive shaft is rotatably mounted inside the control cavity and to the right of the power shaft. A full gear is fixedly mounted on the outer surface of the central drive shaft, and an incomplete gear is fixedly mounted on the outer surface of the central drive shaft and below the full gear. The upper drive gear meshes with the full gear, and the lower drive gear meshes with the incomplete gear. A drive fan is fixedly mounted at the top of the power shaft.

[0010] When steam is inside the filter cartridge, the high temperature and pressure cause changes in the solubility of calcium carbonate and silica within the steam. Simultaneously, the roughened metal ring surface has a higher roughness relative to the inner wall of the filter cartridge. Greater surface roughness promotes the formation and deposition of dirt, making it easier for calcium carbonate and silica in the steam to adhere to the inner surface of the roughened metal ring. At the same time, the steam drives the fan, which in turn rotates the power shaft and its upper transmission gear. This causes the full gear to drive the intermediate shaft and its incomplete gear to rotate simultaneously. The grooved portion of the incomplete gear, when rotating, drives the threaded rod through the lower transmission gear. When the lower transmission gear contacts the ungrooved portion of the incomplete gear... When the threaded rod stops rotating, the limiting pin prevents the sliding ring from rotating, allowing it to move only up and down. This causes the threaded sleeve 12 to move the sliding pin 14 and sliding ring 16 towards the upward support frame 10 as the threaded rod rotates. At this time, the one-way bearing does not rotate. When the threaded rod stops rotating, it no longer exerts upward force on the sliding pin through the threaded sleeve. This causes the compressed outer spring to quickly push the sliding pin downwards. The one-way bearing then rotates, carrying the threaded sleeve, and uses a scraper to remove the crystals. The steam generates power to treat the steam entering the turbine, reducing the degree of scaling inside the turbine and pipelines, extending the service life of the geothermal power generation system, and reducing the workload of turbine and pipeline maintenance.

[0011] Preferably, an upper abutment plate is fixedly installed at the bottom of the upper support frame, a lower abutment plate is fixedly installed at the top of the lower support frame, and sliding grooves are provided around the sliding ring, with arc-shaped plates slidably installed inside each of the four sliding grooves.

[0012] Preferably, each of the four arc-shaped plates is fixedly mounted with a sliding block on one side relative to the sliding column. The outer surface of the sliding block is slidably mounted with a buckle by an inner spring, and the inner wall of the sliding groove is provided with a groove that cooperates with the buckle.

[0013] Preferably, the sliding block has a limiting groove extending through it vertically, and the outer surfaces of the upper and lower abutments are in contact with the inner surfaces of the limiting grooves. A scraper is fixedly installed on the outer surface of the arc-shaped plate, and the outer surface of the scraper is in contact with the inner surface of the rough metal ring.

[0014] Initially, the lower abutment plate, via the limiting groove on the sliding block, positions the arc-shaped plate inside the sliding groove. As the sliding column moves upwards with the sliding ring, the scraper is not in contact with the rough metal ring. When it reaches the top of the threaded rod, the inclined surface of the upper abutment plate abuts against the inclined surface on the outer side of the limiting groove and inserts into the limiting groove. This causes the upper abutment plate to push the sliding block outwards, pushing the arc-shaped plate and its scraper out of the sliding groove. The scraper then contacts the rough metal ring, and simultaneously, the latch moves from the inner slot to the outer slot and engages. Afterwards, the threaded rod stops rotating, and the sliding column, carrying the arc-shaped plate, is... Pushing downwards quickly, the scraper brush rapidly sweeps the unscalded crystals on the rough metal ring downwards and onto the bottom of the filter cartridge. As the sliding ring moves to the bottom of the threaded rod, the inclined surface on the lower abutment plate abuts against the inclined surface on the inner side of the bottom of the limiting groove and inserts into the limiting groove. This causes the sliding block, along with the arc-shaped plate, to retract into the sliding ring. The scraper brush then leaves the rough metal ring again. Repeating the above steps ensures that the scraper brushes the unscalded crystals to the bottom of the filter cartridge cavity. This makes it easier to collect the crystals after they are scraped off, while preventing the crystals from accumulating at the top of the rough metal ring and causing blockage.

[0015] Preferably, a scraper is fixedly installed at the bottom end of the threaded rod, an upper permanent magnet is fixedly installed inside the scraper, an arc-shaped sliding cavity is opened at the bottom inside the filter cylinder, an extrusion block is slidably installed inside the arc-shaped sliding cavity, and a lower permanent magnet that cooperates with the upper permanent magnet is fixedly installed inside the extrusion block.

[0016] Preferably, an elastic airbag is fixedly installed on the left side of the extrusion block, and the left side of the elastic airbag is fixedly connected to the inner wall of the arc-shaped sliding cavity. Two one-way valves are symmetrically installed on the left side of the elastic airbag.

[0017] Preferably, the front end of the filter cartridge is provided with a dirt removal hole, a dirt removal frame is slidably installed inside the dirt removal hole, a pull spring is fixedly installed on the back of the dirt removal frame, an air jet is fixedly installed on the inner wall of the dirt removal hole, and a dirt outlet is provided at the bottom of the machine casing.

[0018] When the threaded rod rotates, it drives the scraper to rotate as well. Since the cleaning frame is a through frame, the scraper concentrates the crystals and causes them to fall into the cleaning hole. During the movement of the scraper, the upper permanent magnet attracts the lower permanent magnet, causing the scraper to move clockwise with the extrusion block and extend the elastic airbag. Gas is then drawn into the elastic airbag through the outer one-way valve. When the extrusion block moves to the end of the arc-shaped sliding cavity, it stops, and the scraper continues to move, preventing the lower permanent magnet from being attracted by the upper permanent magnet. The elastic airbag returns to its original position, and the gas inside the elastic airbag is ejected through the jet nozzle, pushing the cleaning frame outwards from the cleaning hole. The crystals inside the cleaning hole are pushed towards the opening of the cleaning hole by the frame of the cleaning frame. Under the action of inertia, the crystals move towards the cleaning hole and fall out of the cleaning hole. They then fall to the outside of the machine casing through the outlet, allowing the collected crystals to be automatically discharged, while reducing the impact on the sealing of the filter cartridge during operation.

[0019] Preferably, the one-way valve located on the outer side only allows gas inside the filter cartridge to enter the interior of the elastic airbag, while the one-way valve located on the inner side only allows gas inside the elastic airbag to enter the interior of the jet nozzle.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. By using a one-way bearing, the sliding column and sliding ring move upward when the threaded rod rotates. When the threaded rod stops rotating, the compressed outer spring pushes the sliding column downward quickly. Together with the rough metal ring and scraper, the steam entering the turbine is treated, reducing the degree of scaling inside the turbine and pipelines, extending the service life of the geothermal power generation system, and reducing the workload of turbine and pipeline maintenance.

[0022] 2. Through the cooperation of the upper and lower abutment plates and the limiting groove, the scraper always brushes the non-scale crystals to the bottom of the filter cartridge cavity, making it easier to collect the crystals after they are scraped off, while preventing the crystals from accumulating on the top of the rough metal ring and causing blockage.

[0023] 3. During the movement of the scraper, it will move the extrusion block clockwise and extend the elastic airbag. When the extrusion block moves to the end of the arc-shaped sliding cavity, the elastic airbag returns to its original position, and the gas inside the elastic airbag is ejected through the jet nozzle, which pushes the cleaning frame outward. The crystals inside the cleaning frame are discharged from the cleaning hole, so that the crystals can be automatically discharged after collection, while reducing the impact on the sealing of the filter cartridge during operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the filter cartridge of the present invention;

[0026] Figure 3 This is a top view of the internal structure of the sliding column and sliding ring of the present invention;

[0027] Figure 4 For the present invention Figure 2 Enlarged view of the structure of A in the middle;

[0028] Figure 5 For the present invention Figure 3 Enlarged view of the structure of B in the middle;

[0029] Figure 6 This is a top cross-sectional view of the internal structure of the filter cartridge of the present invention;

[0030] Figure 7 This is a partial schematic diagram of the internal structure of the upper support frame of the present invention;

[0031] Figure 8 This is a schematic diagram of the overall structure of the present invention.

[0032] Figure 9 This is a perspective view of the external structure of the cleaning frame of the present invention.

[0033] In the diagram: 1. Casing; 2. Steam turbine; 3. Generator; 4. Outlet pipe; 5. Filter cartridge; 6. Connecting pipe; 7. Inlet pipe; 8. Rough-surfaced metal ring; 9. Lower support frame; 10. Upper support frame; 11. Threaded rod; 12. Threaded sleeve; 13. One-way bearing; 14. Sliding column; 15. Connecting bar; 16. Sliding ring; 17. Outer spring; 18. Control chamber; 19. Power shaft; 20. Lower transmission gear; 21. Upper transmission gear; 22. Intermediate shaft; 23. Full gear; 24. Incomplete gear. 25. Wheel, 26. Drive fan, 27. Upper support plate, 28. Lower support plate, 29. Sliding groove, 30. Arc-shaped plate, 31. Sliding block, 32. Inner spring, 33. Buckle, 34. Slot, 35. Limiting groove, 36. Scraper, 37. Upper permanent magnet, 38. Arc-shaped sliding cavity, 39. Extrusion block, 40. Lower permanent magnet, 41. Elastic airbag, 42. One-way valve, 43. Stain removal hole, 44. Stain removal frame, 45. Rear pull spring, 46. Jet nozzle, 47. Sewage outlet, 48. Limiting post. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0036] Furthermore, 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 of the stated 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 or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] Please see Figures 1 to 9 This invention provides a geothermal power generation system, the technical solution of which is as follows:

[0038] A geothermal power generation system includes a casing 1, a steam turbine 2 fixedly installed inside the casing 1, a generator 3 fixedly installed outside the casing 1 and connected to the left side of the steam turbine 2, an exhaust pipe 4 fixedly installed on the right side of the casing 1 and connected to the bottom of the steam turbine 2, a filter cartridge 5 fixedly installed inside the casing 1 and below the steam turbine 2, a connecting pipe 6 connected to the top of the filter cartridge 5, and an intake pipe 7 connected to the bottom of the filter cartridge 5. One end of the intake pipe 7 penetrates the casing 1 and extends to the outside of the casing 1, and one end of the connecting pipe 6 is connected to the bottom of the steam turbine 2. A rough-surfaced metal ring 8 is fixedly installed on the inner wall of the filter cartridge 5. A lower support frame 9 is fixedly installed in the inner cavity of the filter cartridge 5. An upper support frame 10 is fixedly installed in the inner cavity of the filter cartridge 5 and above the lower support frame 9. A threaded rod 11 is rotatably installed on the top of the lower support frame 9. The bottom end of the threaded rod 11 passes through the lower support frame 9 and extends to the outside of the lower support frame 9. The top end of the threaded rod 11 passes through the upper support frame 10 and extends to the inside of the upper support frame 10. A threaded sleeve 12 is threadedly installed on the outer surface of the threaded rod 11. A one-way bearing 13 is fixedly installed on the outer surface of the threaded sleeve 12. A one-way bearing 13 is fixedly installed on the outer surface of the one-way bearing 13. A sliding column 14 is provided, and a sliding ring 16 is fixedly installed on the outer surface of the sliding column 14 via a connecting strip 15. A limit column 48 is fixedly installed between the upper support frame 10 and the lower support frame 9. The outer surface of the limit column 48 is slidably connected to the inner surface of the connecting strip 15. An outer spring 17 is fixedly installed on the top of the sliding column 14, and the top of the outer spring 17 is fixedly connected to the bottom of the upper support frame 10. A control cavity 18 is opened inside the upper support frame 10. A power shaft 19 is rotatably installed inside the control cavity 18. The top end of the power shaft 19 passes through the upper support frame 10 and extends to the outside of the upper support frame 10. A threaded rod 11 is also provided. A lower drive gear 20 is fixedly installed at the top of the power shaft 19 and inside the control cavity 18. An upper drive gear 21 is fixedly installed at the bottom of the power shaft 19 and inside the control cavity 18. A central shaft 22 is rotatably installed inside the control cavity 18 and to the right of the power shaft 19. A full gear 23 is fixedly installed on the outer surface of the central shaft 22. An incomplete gear 24 is fixedly installed on the outer surface of the central shaft 22 and below the full gear 23. The upper drive gear 21 meshes with the full gear 23, and the lower drive gear 20 meshes with the incomplete gear 24. A drive fan 25 is fixedly installed at the top of the power shaft 19.

[0039] When steam is inside the filter cartridge 5, the high temperature and pressure cause changes in the solubility of calcium carbonate and silica within the steam. Simultaneously, the roughness of the surface of the roughened metal ring 8 is relatively high compared to the inner wall of the filter cartridge 5. Greater surface roughness promotes the formation and deposition of dirt, making it easier for calcium carbonate and silica in the steam to adhere to the inner surface of the roughened metal ring 8. At the same time, the steam drives the drive fan 25 to rotate, causing the power shaft 19 and the upper transmission gear 21 on the power shaft 19 to rotate. This causes the full gear 23 to drive the intermediate shaft 22 and the incomplete gear 24 on it to rotate simultaneously. A portion of the incomplete gear 24 with grooves, when rotating, drives the threaded rod 11 to rotate via the lower transmission gear 20. When the lower transmission gear 20 contacts the portion of the incomplete gear 24 without grooves... When the threaded rod 11 stops rotating, the limiting post 48 prevents the sliding ring 16 from rotating, allowing it to move only up and down. This causes the threaded sleeve 12 to move the sliding post 14 and the sliding ring 16 towards the upward support frame 10 when the threaded rod 11 rotates. At this time, the one-way bearing 13 does not rotate. When the threaded rod 11 stops rotating, it no longer exerts an upward force on the sliding post 14 through the threaded sleeve 12. This causes the compressed outer spring 17 to push the sliding post 14 downward quickly. At this time, the one-way bearing 13 rotates the threaded sleeve 12 and brushes away the crystals through the scraper 35. The steam generates power to treat the steam entering the turbine 2, reducing the degree of scaling inside the turbine 2 and pipelines, extending the service life of the geothermal power generation system, and reducing the workload of maintenance of the turbine 2 and pipelines.

[0040] As one embodiment of the present invention, refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 The upper support frame 10 has an upper abutment plate 26 fixedly installed at its bottom, and the lower support frame 9 has a lower abutment plate 27 fixedly installed at its top. The sliding ring 16 has sliding grooves 28 around its four sides. Arc-shaped plates 29 are slidably installed inside each of the four sliding grooves 28. Sliding blocks 30 are fixedly installed on the side of each of the four arc-shaped plates 29 relative to the sliding column 14. The outer surface of the sliding block 30 is slidably fitted with a buckle 32 by an inner spring 31. The inner wall of the sliding groove 28 has a groove 33 that matches the buckle 32. The sliding block 30 has a limiting groove 34 running through its upper and lower sides. The outer surfaces of the upper abutment plate 26 and the lower abutment plate 27 are in contact with the inner surface of the limiting groove 34. A scraper 35 is fixedly installed on the outer surface of the arc-shaped plate 29. The outer surface of the scraper 35 is in contact with the inner surface of the rough metal ring 8.

[0041] In the initial state, the lower abutment plate 27, through the limiting groove 34 on the sliding block 30, keeps the arc-shaped plate 29 inside the sliding groove 28. As the sliding column 14 moves upward with the sliding ring 16, the scraper 35 is not in contact with the rough metal ring 8. When it reaches the top position of the threaded rod 11, the inclined surface of the upper abutment plate 26 abuts against the inclined surface on the outer side of the top of the limiting groove 34 and inserts into the limiting groove 34. This causes the upper abutment plate 26 to push the sliding block 30 outward, pushing the arc-shaped plate 29 and its scraper 35 out of the sliding groove 28. The scraper 35 then contacts the rough metal ring 8, and simultaneously, the latch 32 moves from the inner latch 33 to the outer latch 33 and engages. Afterward, the threaded rod 11 stops rotating, and the sliding... The moving column 14, along with the arc-shaped plate 29, is rapidly pushed downwards. The scraper 35 quickly brushes the un-scalded crystals on the rough metal ring 8 downwards and onto the bottom of the filter cylinder 5. When the sliding ring 16 moves to the bottom position of the threaded rod 11, the inclined surface on the lower abutment plate 27 abuts against the inclined surface on the inner side of the bottom of the limiting groove 34 and inserts into the limiting groove 34. This causes the sliding block 30, along with the arc-shaped plate 29, to retract into the sliding ring 16. The scraper 35 then leaves the rough metal ring 8 again. The above steps are repeated so that the scraper 35 always brushes the un-scalded crystals to the bottom of the inner cavity of the filter cylinder 5. This makes it easier to collect the crystals after they are scraped off, and at the same time prevents the crystals from accumulating at the top of the rough metal ring 8 and causing blockage.

[0042] As one embodiment of the present invention, refer to Figure 2 , Figure 6 and Figure 9 A scraper 36 is fixedly installed at the bottom end of the threaded rod 11. An upper permanent magnet 37 is fixedly installed inside the scraper 36. An arc-shaped sliding cavity 38 is opened at the bottom inside the filter cylinder 5. An extrusion block 39 is slidably installed inside the arc-shaped sliding cavity 38. A lower permanent magnet 40 that cooperates with the upper permanent magnet 37 is fixedly installed inside the extrusion block 39. An elastic airbag 41 is fixedly installed on the left side of the extrusion block 39. The left side of the elastic airbag 41 is fixedly connected to the inner wall of the arc-shaped sliding cavity 38. The left side of the elastic airbag 41 is symmetrically installed. The filter cartridge 5 is equipped with two one-way valves 42. A cleaning hole 43 is opened at the front end of the filter cartridge 5. A cleaning frame 44 is slidably installed inside the cleaning hole 43. A pull spring 45 is fixedly installed on the back of the cleaning frame 44. An air jet port 46 is fixedly installed on the inner wall of the cleaning hole 43. A sludge outlet 47 is opened at the bottom of the casing 1. The one-way valve 42 on the outer side only allows the gas inside the filter cartridge 5 to enter the interior of the elastic air bag 41, and the one-way valve 42 on the inner side only allows the gas inside the elastic air bag 41 to enter the interior of the air jet port 46.

[0043] When the threaded rod 11 rotates, it causes the scraper 36 to rotate as well. Since the cleaning frame 44 is a through-frame, the scraper 36 concentrates the crystals into the cleaning hole 43. During the movement of the scraper 36, the upper permanent magnet 37 attracts the lower permanent magnet 40, causing the scraper 36 to move clockwise with the extrusion block 39 and extend the elastic airbag 41. Gas is then drawn into the elastic airbag 41 through the outer one-way valve 42. When the extrusion block 39 reaches the end of the arc-shaped sliding cavity 38, the scraper 36 continues to move after the extrusion block 39 stops, causing the lower permanent magnet... Body 40 is unable to be attracted by the upper permanent magnet 37, the elastic airbag 41 returns to its original position, and the gas inside the elastic airbag 41 is ejected through the jet nozzle 46, causing the cleaning frame 44 to be pushed outward of the cleaning hole 43. The crystals inside the cleaning hole 43 are pushed by the frame of the cleaning frame 44 towards the opening of the cleaning hole 43. Under the action of inertia, the crystals move towards the cleaning hole 43, causing the crystals to fall from the cleaning hole 43 and fall to the outside of the machine casing 1 through the discharge port 47, so that the crystals can be automatically discharged after collection, while reducing the impact on the sealing of the filter cartridge 5 during operation.

[0044] Working principle: First, the operator introduces geothermal steam into the intake pipe 7. The steam inside the intake pipe 7 first enters the filter cylinder 5, then passes through the connecting pipe 6 into the turbine 2. The steam drives the turbine 2 and, in conjunction with the generator 3, generates electricity. Finally, the steam is discharged from the outlet pipe 4. While the steam is inside the filter cylinder 5, the high temperature and pressure cause changes in the solubility of calcium carbonate and silica within the steam. Simultaneously, the roughened metal ring 8 has a higher surface roughness compared to the inner wall of the filter cylinder 5. Greater surface roughness promotes the formation and deposition of dirt, making it easier for calcium carbonate and silica in the steam to adhere to the inner surface of the roughened metal ring 8. At the same time, the steam drives the drive fan 25 to rotate, which in turn drives the power shaft 19 and its connecting shaft. The upper transmission gear 21 rotates, causing the full gear 23 to drive the central shaft 22 and its incomplete gear 24 to rotate simultaneously. A portion of the incomplete gear 24 with tooth grooves rotates, driving the threaded rod 11 to rotate via the lower transmission gear 20. When the lower transmission gear 20 contacts the ungrooved portion of the incomplete gear 24, it stops rotating. The limiting post 48 prevents the sliding ring 16 from rotating, allowing it to move only up and down. This causes the threaded sleeve 12 to move the sliding post 14 and sliding ring 16 towards the upper support frame 10 as the threaded rod 11 rotates. At this time, the one-way bearing 13 does not rotate. When the threaded rod 11 stops rotating, it no longer exerts an upward force on the sliding post 14 via the threaded sleeve 12, thus reducing the compression... The outer spring 17 pushes the sliding column 14 downwards quickly. At this time, the one-way bearing 13 rotates the threaded sleeve 12. In the initial state, the lower abutment plate 27 keeps the arc-shaped plate 29 inside the sliding groove 28 through the limiting groove 34 on the sliding block 30. During the upward movement of the sliding column 14 with the sliding ring 16, the scraper 35 does not contact the rough metal ring 8. When it moves to the top of the threaded rod 11, the inclined surface of the upper abutment plate 26 abuts against the inclined surface on the outer side of the top of the limiting groove 34 and inserts into the limiting groove 34. This causes the upper abutment plate 26 to push the sliding block 30 outwards, driving the arc-shaped plate 29 and the scraper 35 on it to be pushed out of the sliding groove 28. The scraper 35 contacts the rough metal ring 8, and at the same time, the buckle 32 moves from the inner slot 33 to the... The outer slots 33 engage, causing the threaded rod 11 to stop rotating. The sliding column 14, carrying the arc-shaped plate 29, is quickly pushed downwards. The scraper 35 rapidly brushes the unscaled crystals on the rough metal ring 8 downwards and onto the bottom of the filter cartridge 5. When the sliding ring 16 moves to the bottom position of the threaded rod 11, the inclined surface on the lower abutment plate 27 abuts against the inclined surface on the inner side of the bottom of the limiting groove 34 and inserts into the limiting groove 34. This causes the sliding block 30, carrying the arc-shaped plate 29, to retract into the sliding ring 16. The scraper 35 then leaves the rough metal ring 8 again. The above steps are repeated so that the scraper 35 always brushes the unscaled crystals to the bottom of the inner cavity of the filter cartridge 5. At the same time, the threaded rod 11 rotates, causing the scraper 36 to rotate as well. Since the cleaning frame 44 is a frame with a through-hole in the middle,The scraper 36 concentrates the crystals into the cleaning hole 43. During its movement, the upper permanent magnet 37 attracts the lower permanent magnet 40, causing the scraper 36 to move clockwise along with the extrusion block 39 and extend the elastic airbag 41. Gas is drawn into the elastic airbag 41 through the outer one-way valve 42. When the extrusion block 39 reaches the end of the arc-shaped sliding cavity 38, it stops, and the scraper 36 continues to move, preventing the lower permanent magnet 40 from being attracted by the upper permanent magnet 37. The elastic airbag 41 returns to its original position, and the gas inside is ejected through the jet nozzle 46, pushing the cleaning frame 44 outwards from the cleaning hole 43. The crystals inside the cleaning hole 43 are pushed towards the opening of the cleaning hole 43 by the frame of the cleaning frame 44. Under inertia, the crystals move towards the cleaning hole 43, falling out and through the outlet 47 to the outside of the machine casing 1.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A geothermal power generation system, comprising a machine shell (1); a steam turbine (2) fixedly installed inside the machine shell (1); a generator (3) fixedly installed outside the machine shell (1) and connected to the left side of the steam turbine (2); an air outlet pipe (4) fixedly installed on the right side of the machine shell (1) and in communication with the bottom of the steam turbine (2); characterized in that: a filter cylinder (5) is fixedly installed inside the machine shell (1) and below the steam turbine (2), the top end of the filter cylinder (5) is in communication with a communication pipe (6), the bottom end of the filter cylinder (5) is in communication with an air inlet pipe (7), one end of the air inlet pipe (7) penetrates through the machine shell (1) and extends to the outside of the machine shell (1), one end of the communication pipe (6) is in communication with the bottom of the steam turbine (2), and a rough metal ring (8) is fixedly installed on the inner wall of the filter cylinder (5); a lower support frame (9) is fixedly installed in the inner cavity of the filter cylinder (5), an upper support frame (10) is fixedly installed in the inner cavity of the filter cylinder (5) and above the lower support frame (9), a threaded rod (11) is rotatably installed on the top of the lower support frame (9), the bottom end of the threaded rod (11) penetrates through the lower support frame (9) and extends to the outside of the lower support frame (9), the top end of the threaded rod (11) penetrates through the upper support frame (10) and extends to the inside of the upper support frame (10), a threaded sleeve (12) is threadedly installed on the outer surface of the threaded rod (11), a one-way bearing (13) is fixedly installed on the outer surface of the threaded sleeve (12), a sliding column (14) is fixedly installed on the outer surface of the one-way bearing (13), a sliding ring (16) is fixedly installed on the outer surface of the sliding column (14) through a connecting strip (15), a limiting column (48) is fixedly installed between the upper support frame (10) and the lower support frame (9), the outer surface of the limiting column (48) is in sliding connection with the inner surface of the connecting strip (15), an outer spring (17) is fixedly installed on the top of the sliding column (14), and the top of the outer spring (17) is fixedly connected with the bottom of the upper support frame (10); a control cavity (18) is formed in the inside of the upper support frame (10), a power shaft (19) is rotatably installed in the inside of the control cavity (18), the top end of the power shaft (19) penetrates through the upper support frame (10) and extends to the outside of the upper support frame (10), a lower transmission gear (20) is fixedly installed on the top end of the threaded rod (11) and in the inside of the control cavity (18), and an upper transmission gear (21) is fixedly installed on the bottom end of the power shaft (19) and in the inside of the control cavity (18). The inner of control cavity (18) and right of power shaft (19) rotationally installed with middle pivot (22), the outer surface of middle pivot (22) fixedly installed with full gear (23), the outer surface of middle pivot (22) and below full gear (23) fixedly installed with incomplete gear (24), the upper transmission gear (21) is engaged with full gear (23), the lower transmission gear (20) is engaged with incomplete gear (24), the top of power shaft (19) fixedly installed with drive fan (25); The bottom of upper support frame (10) fixedly installed with upper stop plate (26), the top of lower support frame (9) fixedly installed with lower stop plate (27), the periphery of sliding ring (16) is all set with sliding groove (28), the inner of four sliding grooves (28) all slidingly installed with arc plate (29); The side of four arc plates (29) relative to sliding column (14) all fixedly installed with sliding block (30), the outer surface of sliding block (30) slidingly installed with buckle (32) through inner spring (31), the inner wall of sliding groove (28) is set with clamping groove (33) matched with buckle (32); The upper and lower of sliding block (30) all set with limiting slot (34), the outer surface of upper stop plate (26) and lower stop plate (27) all contact with the inner surface of limiting slot (34), the outer surface of arc plate (29) fixedly installed with scraping brush (35), the outer surface of scraping brush (35) contact with the inner surface of rough metal ring (8); The bottom of threaded rod (11) fixedly installed with scraper (36), the inner of scraper (36) fixedly installed with upper permanent magnet (37), the bottom of the inside of filter cylinder (5) set with arc sliding cavity (38), the inner of arc sliding cavity (38) slidingly installed with extrusion block (39), the inner of extrusion block (39) fixedly installed with lower permanent magnet (40) matched with upper permanent magnet (37); The left side of extrusion block (39) fixedly installed with elastic air bag (41), the left side of elastic air bag (41) fixedly connected with the inner wall of arc sliding cavity (38), the left side of elastic air bag (41) symmetrically installed with two check valves (42); The front end of filter cylinder (5) set with dirt removal hole (43), the inner of dirt removal hole (43) slidingly installed with dirt removal frame (44), the back of dirt removal frame (44) fixedly installed with rear pull spring (45), the inner wall of dirt removal hole (43) fixedly installed with air outlet (46), the bottom of machine shell (1) set with dirt outlet (47), the dirt removal frame (44) is the frame body through the middle; The check valve (42) on the outside only allows the gas inside filter cylinder (5) to enter the inside of elastic air bag (41), the check valve (42) on the inside only allows the gas inside elastic air bag (41) to enter the inside of air outlet (46); When the steam is inside the filter cylinder (5), the high temperature and high pressure will change the solubility of calcium carbonate and silicon dioxide inside the steam, and the rough surface of the metal ring (8) has a high roughness relative to the inner wall of the filter cylinder (5), which can make the calcium carbonate and silicon dioxide in the steam more easily adhere to the inner surface of the rough surface metal ring (8), and the steam will drive the driving fan (25) to rotate, drive the power shaft (19) and the upper transmission gear (21) on the power shaft (19) to rotate, make the full gear (23) drive the intermediate shaft (22) and the incomplete gear (24) on it rotate at the same time, a part of the tooth groove on the incomplete gear (24) will drive the threaded rod (11) to rotate through the lower transmission gear (20) when rotating, when the lower transmission gear (20) contacts the part of the incomplete gear (24) without tooth groove, it will stop rotating, the limit column (48) makes the sliding ring (16) unable to rotate, only the movement in the up and down direction, so that the threaded rod (11) rotates, the threaded sleeve (12) will move the sliding column (14) and the sliding ring (16) to the upward support frame (10) direction, and at this time, the one-way bearing (13) will not rotate, when the threaded rod (11) stops rotating, the threaded rod (11) no longer gives the sliding column (14) upward force through the threaded sleeve (12), the compressed outer spring (17) quickly pushes the sliding column (14) downward, at this time the one-way bearing (13) will rotate with the threaded sleeve (12), and the crystal brush is removed through the scraper (35), and the steam entering the steam turbine (2) is treated by steam power; when the sliding ring (16) moves to the bottom position of the threaded rod (11), the inclined surface on the lower abutting plate (27) abuts with the inclined surface inside the bottom of the limit groove (34) and inserts into the limit groove (34), so that the sliding block (30) with the arc plate (29) shrinks into the sliding ring (16), and the scraper (35) re-leaves the rough surface metal ring (8).

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