Universal desanding and filtering integrated device for geothermal well

Abstract

The utility model provides a universal desanding and filtering integrated device for a geothermal well. The universal desanding and filtering integrated device for the geothermal well comprises a sand collecting box; the cyclone desander is mounted at the top of the sand collecting box, a liquid inlet pipe is arranged on the cyclone desander, and a liquid discharge pipe is arranged at the top of the cyclone desander; the two sand discharging pipes are fixedly mounted at the top of the sand collecting box, and the two sand discharging pipes extend into the sand collecting box; and the two filter boxes are fixedly mounted at the tops of the two sand discharging pipes correspondingly. The universal desanding and filtering integrated device for the geothermal well has the advantages that the filtering system can be cleaned during desanding operation, and the desanding efficiency and the desanding effect are effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of geothermal fluid sand removal, in particular to a universal geothermal well sand removal and filtration integrated device. Background Art

[0002] Geothermal energy is the heat energy hidden in the earth's interior. It has the characteristics of large reserves, wide distribution, green and low-carbon, recyclable, stable and reliable. It is a realistic, feasible and competitive clean energy. With the rapid consumption of non-renewable resources such as coal, oil and natural gas, geothermal energy as a renewable clean energy will gradually replace non-renewable resources. Geothermal energy is used in various forms such as power generation, heating, refrigeration, agriculture, medical treatment, hot spring industry and aquaculture. Under the background of dual carbon, geothermal energy has received more and more attention, and the market prospects for the comprehensive utilization of geothermal energy are broad. In the process of geothermal energy utilization, geothermal fluid gushes out from geothermal wells, carrying a large amount of sand and gravel particles and impurities, which can easily cause damage to equipment and blockage of pipelines. Sand and gravel are deposited in the pipeline, increasing the resistance to geothermal fluid transportation and increasing the energy consumption of the enterprise. In severe cases, it will block the pipeline and affect the normal operation of the production process. On the other hand, it makes the heat transfer performance of the heating surface worse, and the increased heat transfer resistance affects the heat exchange effect, resulting in the ineffective use of heat and increasing the workload of equipment inspection and maintenance.

[0003] Currently, the industry uses pipeline filters to remove sand, but it often requires shutdown for cleaning or replacement of filters, and online sand removal cannot be achieved, affecting the continuity of the device's use.

[0004] Therefore, it is necessary to provide a new universal geothermal well sand removal and filtration integrated device to solve the above technical problems. Utility Model Content

[0005] In order to solve the technical problem that the current pipeline filter used in the industry for sand removal cannot achieve online sand removal, the utility model provides a universal geothermal well sand removal and filtration integrated device.

[0006] The utility model provides a universal geothermal well sand removal and filtration integrated device comprising: a sand collecting box; a cyclone desander, the cyclone desander is mounted on the top of the sand collecting box, a liquid inlet pipe is provided on the cyclone desander, and a liquid discharge pipe is provided on the top of the cyclone desander; two sand discharge pipes, both of which are fixedly mounted on the top of the sand collecting box, and both of which extend into the sand collecting box; two filter boxes, both of which are fixedly mounted on the tops of the two sand discharge pipes, respectively; two filter assemblies, both of which are respectively arranged in the two filter boxes, and the filter assemblies are used to further filter the geothermal fluid; a material blocking assembly, which is arranged on the sand collecting box, and is used to prevent the geothermal fluid from easily leaking along with the sand.

[0007] Preferably, the filter assembly includes an outer cylinder, an inner cylinder, a plurality of electric telescopic rods and a cover plate, the plurality of electric telescopic rods are fixedly mounted on the top of the sand collecting box, the cover plate is fixedly mounted on the output rods of the plurality of electric telescopic rods, the cover plate can contact the top of any one of the filter boxes, the outer cylinder and the inner cylinder are fixedly mounted in the filter box, the outer cylinder is sleeved outside the inner cylinder, and filter material is filled between the outer cylinder and the inner cylinder.

[0008] Preferably, the blocking assembly comprises a fixing frame, a hydraulic rod is fixedly mounted on the fixing frame, a blocking block is fixedly mounted on the hydraulic rod, the blocking block can extend into the sand collecting box, and the blocking block contacts the inner wall of the sand collecting box.

[0009] Preferably, a plurality of cylinders are fixedly mounted on the sand collecting box, and plugging plates are fixedly mounted on output rods of the plurality of cylinders, and the plurality of plugging plates respectively contact the bottom of two of the sand discharge pipes with the sand discharge port of the cyclone desander.

[0010] Preferably, two branch pipes are fixedly installed at the bottom of the drainage pipe, and the two branch pipes are fixedly connected to the two cover plates respectively. The two branch pipes are made of rubber hoses, and valves are provided on the two branch pipes. The drainage pipe is provided with a one-way valve.

[0011] Preferably, a collecting barrel is fixedly installed on the top of the sand collecting box, and the collecting barrel is sleeved outside the cyclone sand remover and the two filter boxes. A fixed pipe is fixedly installed on the side of the sand collecting box away from the fixed frame, and protective covers are threadedly installed on the fixed pipe and the drain pipe.

[0012] Preferably, scraper rings are movably sleeved outside the two inner cylinders, and the outer walls of the two scraper rings are respectively in contact with the inner walls of the two outer cylinders. Two connecting rods are fixedly installed on the tops of the two scraper rings, and the multiple connecting rods are respectively connected to the bottoms of the two cover plates by bolts.

[0013] Compared with the related art, the universal geothermal well sand removal and filtration integrated device provided by the utility model has the following beneficial effects:

[0014] The utility model provides a universal geothermal well sand removal and filtration integrated device:

[0015] 1. The cyclone desander can separate the sand and gravel in the geothermal fluid. The two filter components can further filter the liquid after sand removal. The two filter boxes can be used in turn to achieve online replacement of aluminum materials, thereby ensuring the liquid filtering effect and filtering efficiency. By adjusting the extension length of the output rod of the electric telescopic rod, the cover plate can be moved away from the filter box, so that the filter material in the filter box can be exposed. The filter material can be limited by the outer tube and the inner tube to prevent the filter material from entering the branch pipe and causing the branch pipe to be blocked. The position of the block can be adjusted by adjusting the extension length of the output rod of the hydraulic rod. Keeping the block in the sand collecting box can prevent the geothermal fluid from being directly discharged;

[0016] 2. The height of the plugging plate can be adjusted by adjusting the extension length of the output rod of the cylinder so that the plugging plate contacts the bottom of the two sand discharge pipes and the sand discharge port of the cyclone desander to prevent the sand from flowing back into the sand discharge pipe and the cyclone desander when the collected sand is discharged. The filter box and the sand discharge pipe are connected by branch pipes, which has little effect on the up and down movement of the cover plate. The filtration direction of the fluid can be adjusted by switching the valve. The collecting barrel can prevent the filter material from rolling down directly when the filter material is discharged, which is inconvenient to collect. The sand collecting box can be flushed by pouring water into it through a fixed pipe, thereby facilitating the discharge of the collected sand. The scraper ring can be driven to move by moving the connecting rod, so as to push the filter material between the outer cylinder and the inner cylinder out of the filter box. The scraper ring can be prevented from affecting the addition of new filter material by disassembling the separating connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the front cross-sectional structure of a preferred embodiment of the universal geothermal well sand removal and filtration integrated device provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the filter assembly in the utility model;

[0019] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG.

[0020] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part B shown in FIG.

[0021] Numbers in the figure: 1. Sand collecting box; 2. Cyclone sand remover; 3. Sand discharge pipe; 4. Filter box; 5. Drain pipe; 6. Branch pipe; 7. Electric telescopic rod; 8. Cover plate; 9. One-way valve; 10. Valve; 11. Fixed pipe; 12. Protective cover; 13. Collecting barrel; 14. Outer barrel; 15. Inner barrel; 16. Scraper ring; 17. Connecting rod; 18. Cylinder; 19. Blocking plate; 20. Fixed frame; 21. Hydraulic rod; 22. Blocking block. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1-Figure 4 ,in Figure 1 A schematic diagram of the front cross-sectional structure of a preferred embodiment of the universal geothermal well sand removal and filtration integrated device provided by the utility model; Figure 2 This is a schematic diagram of the main cross-sectional structure of the filter assembly in the utility model; Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG. Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part B shown in FIG.

[0024] The universal geothermal well sand removal and filtration integrated device comprises: a sand collecting box 1; a cyclone desander 2, wherein the cyclone desander 2 is installed on the top of the sand collecting box 1, the cyclone desander 2 is provided with a liquid inlet pipe, and the top of the cyclone desander 2 is provided with a liquid discharge pipe 5; two sand discharge pipes 3, wherein the two sand discharge pipes 3 are fixedly installed on the top of the sand collecting box 1, and the two sand discharge pipes 3 extend into the sand collecting box 1; two filter boxes 4, wherein the two filter boxes 4 are respectively fixedly installed on the tops of the two sand discharge pipes 3; two filter assemblies, wherein the two filter assemblies are respectively arranged in the two filter boxes 4, and the filter assemblies are used to further filter the geothermal fluid; a blocking assembly, wherein the blocking assembly is arranged on the sand collecting box 1, and the blocking assembly is used to prevent the geothermal fluid from easily leaking with the sand and soil, the sand and gravel in the geothermal fluid can be separated by the cyclone desander 2, and the liquid after sand removal can be further filtered by the two filter assemblies, and the two filter boxes 4 can be used in turn to realize the online replacement of aluminum materials, thereby ensuring the liquid filtering effect and filtering efficiency.

[0025] The filter assembly includes an outer cylinder 14, an inner cylinder 15, a plurality of electric telescopic rods 7 and a cover plate 8. The plurality of electric telescopic rods 7 are fixedly mounted on the top of the sand collecting box 1. The cover plate 8 is fixedly mounted on the output rods of the plurality of electric telescopic rods 7. The cover plate 8 can contact the top of any one of the filter boxes 4. The outer cylinder 14 and the inner cylinder 15 are fixedly mounted in the filter box 4. The outer cylinder 14 is sleeved outside the inner cylinder 15. Filter material is filled between the outer cylinder 14 and the inner cylinder 15. The cover plate 8 can be moved away from the filter box 4 by adjusting the extension length of the output rod of the electric telescopic rod 7, so that the filter material in the filter box 4 can be exposed. The filter material is limited by the outer cylinder 14 cooperating with the inner cylinder 15 to prevent the filter material from entering the branch pipe 6 and causing the branch pipe 6 to be blocked.

[0026] The blocking assembly includes a fixed frame 20, on which a hydraulic rod 21 is fixedly mounted, and on which a blocking block 22 is fixedly mounted. The blocking block 22 can extend into the sand collecting box 1, and the blocking block 22 contacts the inner wall of the sand collecting box 1. The position of the blocking block 22 can be adjusted by adjusting the extension length of the output rod of the hydraulic rod 21, so that the blocking block 22 remains in the sand collecting box 1 to prevent the geothermal fluid from being directly discharged.

[0027] A plurality of cylinders 18 are fixedly mounted on the sand collecting box 1, and plugging plates 19 are fixedly mounted on the output rods of the plurality of cylinders 18. The plurality of plugging plates 19 are respectively in contact with the bottom of the two sand discharge pipes 3 and the sand discharge port of the cyclone desander 2. The height of the plugging plates 19 is adjusted by adjusting the extension length of the output rods of the cylinders 18 so that the plugging plates 19 contact the bottom of the two sand discharge pipes 3 and the sand discharge port of the cyclone desander 2, thereby preventing the collected sand and gravel from flowing back into the sand discharge pipe 3 and the cyclone desander 2 when the collected sand and gravel is discharged.

[0028] Two branch pipes 6 are fixedly installed at the bottom of the drainage pipe 5, and the two branch pipes 6 are fixedly connected to the two cover plates 8 respectively. The two branch pipes 6 are made of rubber hoses, and valves 10 are provided on the two branch pipes 6. A one-way valve 9 is provided on the drainage pipe 5. The connection between the filter box 4 and the sand discharge pipe 3 through the branch pipe 6 has little effect on the up and down movement of the cover plate 8. The filtering direction of the fluid can be adjusted by switching the valve 10.

[0029] A collecting barrel 13 is fixedly installed on the top of the sand collecting box 1, and the collecting barrel 13 is sleeved outside the cyclone desander 2 and the two filter boxes 4. A fixed pipe 11 is fixedly installed on the side of the sand collecting box 1 away from the fixed frame 20. A protective cover 12 is threadedly installed on the fixed pipe 11 and the drain pipe 5. The collecting barrel 13 can prevent the filter material from rolling down directly when discharging the filter material, which is inconvenient to collect. The sand collecting box 1 can be flushed by pouring water into the sand collecting box 1 through the fixed pipe 11, thereby facilitating the discharge of the collected sand and gravel.

[0030] The two inner cylinders 15 are movably sleeved with scraper rings 16, and the outer walls of the two scraper rings 16 are in contact with the inner walls of the two outer cylinders 14 respectively. Two connecting rods 17 are fixedly installed on the tops of the two scraper rings 16, and the multiple connecting rods 17 are respectively connected to the bottoms of the two cover plates 8 by bolts. The scraper rings 16 can be driven to move by moving the connecting rods 17, so that the filter material between the outer cylinder 14 and the inner cylinder 15 can be pushed out of the filter box 4. The scraper rings 16 can be prevented from affecting the addition of new filter materials by disassembling and separating the connecting rods 17.

[0031] It is worth noting that the circuits, electronic components and modules involved in the present utility model are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present utility model does not involve improvements to software and methods.

[0032] The working principle of the universal geothermal well sand removal and filtration integrated device provided by the utility model is as follows:

[0033] This solution also has an electric control cabinet, which is installed on the equipment. When in use, each electrical device can be started and operated through the electric control cabinet. The power connection method of each electrical device is an existing mature technology, which is a well-known technology for people in this field and will not be described in detail here.

[0034] When in use, first connect the liquid inlet pipe to the discharge end of the geothermal fluid discharge equipment. After the liquid enters the cyclone desander 2, the heavier sand and gravel sink into the sand collecting box 1, and the clearer liquid is discharged to the filter box 4 through the discharge pipe 5. During this period, close any valve 10 to achieve the effect of only activating a single filter box 4. The liquid is purer after passing through the filter material between the outer cylinder 14 and the inner cylinder 15, and impurities remain on the filter material. When the filter material is saturated and needs to be replaced, close the valve 10 on the filter box 4 in use and open another valve 10. At this time, activate another filter box 4, open the electric telescopic rod 7 to adjust the height of the cover plate 8, and the cover plate 8 rises to drive the scraper ring 16 to rise, which can remove the saturated filter material. The aluminum material is scraped out from the filter box 4. When the sand and gravel in the sand collecting box 1 need to be cleaned, the cylinder 18 is turned on to make the blocking plate 19 contact the bottom of the cyclone desander 2, and the hydraulic rod 21 is turned on to make the output rod of the hydraulic rod 21 retract. At this time, the blocking block 22 is away from the sand collecting box 1, and the sand and gravel can be flushed out of the sand collecting box 1 by flushing water into the fixed pipe 11. When the filter box 4 needs to be cleaned, water is flushed into the drain pipe 5, and the water flows through the branch pipe 6 to the filter box 4 to flush the filter box 4. During the flushing process, the cylinder 18 is turned on, and the output rod of the cylinder 18 is retracted to make the blocking plate 19 away from the sand discharge pipe 3, so that the waste liquid can enter the sand collecting box 1. During this period, the staff needs to manually assemble and disassemble parts less, and the cleaning is more labor-saving.

[0035] Compared with the related art, the universal geothermal well sand removal and filtration integrated device provided by the utility model has the following beneficial effects:

[0036] The utility model provides a universal geothermal well sand removal and filtration integrated device, wherein the sand in the geothermal fluid can be separated by a cyclone sand remover 2, and the liquid after sand removal can be further filtered by two filter components, and the two filter boxes 4 can be used in turn to realize the online replacement of aluminum materials, thereby ensuring the liquid filtering effect and filtering efficiency, and the cover plate 8 can be kept away from the filter box 4 by adjusting the output rod extension length of the electric telescopic rod 7, so that the filter material in the filter box 4 can be exposed, and the filter material can be limited by the outer cylinder 14 and the inner cylinder 15, so as to prevent the filter material from entering the branch pipe 6 and causing the branch pipe 6 to be blocked, and the position of the block 22 can be adjusted by adjusting the output rod extension length of the hydraulic rod 21, so that the block 22 is kept in the sand collecting box 1 to prevent the geothermal fluid from being directly discharged, and the output of the cylinder 18 can be adjusted by adjusting the output rod extension length of the hydraulic rod 21. The height of the plugging plate 19 is adjusted by the extension length of the rod, so that the plugging plate 19 contacts the bottom of the two sand discharge pipes 3 and the sand discharge port of the cyclone desander 2, which can prevent the sand from flowing back into the sand discharge pipe 3 and the cyclone desander 2 when the collected sand is discharged. The filter box 4 and the sand discharge pipe 3 are connected by the branch pipe 6, which has little effect on the up and down movement of the cover plate 8. The filtration direction of the fluid can be adjusted by switching the valve 10. The collecting barrel 13 can prevent the filter material from directly rolling down when the filter material is discharged, which is inconvenient to collect. The sand collecting box 1 can be flushed by pouring water into the fixed pipe 11, thereby facilitating the discharge of the collected sand. The scraper ring 16 can be driven to move by moving the connecting rod 17, so as to push the filter material between the outer cylinder 14 and the inner cylinder 15 out of the filter box 4. The scraper ring 16 can be prevented from affecting the addition of new filter material by disassembling and separating the connecting rod 17.

[0037] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. However, on the premise that technical personnel in this field understand the principle of the above-mentioned utility model, they can clearly know the details of its power mechanism, power supply system and control system.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A universal geothermal well sand removal and filtration integrated device, It is characterized in that include: Sand collecting box; A cyclone desander, the cyclone desander is installed on the top of the sand collecting box, a liquid inlet pipe is provided on the cyclone desander, and a liquid discharge pipe is provided on the top of the cyclone desander; Two sand discharge pipes, both of which are fixedly mounted on the top of the sand collecting box, and both of which extend into the sand collecting box; Two filter boxes, the two filter boxes are fixedly installed on the top of the two sand discharge pipes respectively; Two filter assemblies, the two filter assemblies are respectively arranged in the two filter boxes, and the filter assemblies are used to further filter the geothermal fluid; A blocking component is arranged on the sand collecting box, and is used to prevent geothermal fluid from leaking easily along with the sand.

2. The universal geothermal well sand removal and filtration integrated device according to claim 1, It is characterized in that The filter assembly includes an outer cylinder, an inner cylinder, a plurality of electric telescopic rods and a cover plate, the plurality of electric telescopic rods are fixedly mounted on the top of the sand collecting box, the cover plate is fixedly mounted on the output rods of the plurality of electric telescopic rods, the cover plate can contact the top of any one of the filter boxes, the outer cylinder and the inner cylinder are fixedly mounted in the filter box, the outer cylinder is sleeved outside the inner cylinder, and filter material is filled between the outer cylinder and the inner cylinder.

3. The universal geothermal well sand removal and filtration integrated device according to claim 1, It is characterized in that The blocking assembly comprises a fixing frame, a hydraulic rod is fixedly mounted on the fixing frame, a blocking block is fixedly mounted on the hydraulic rod, the blocking block can extend into the sand collecting box, and the blocking block contacts the inner wall of the sand collecting box.

4. The universal geothermal well sand removal and filtration integrated device according to claim 1, It is characterized in that A plurality of cylinders are fixedly mounted on the sand collecting box, and plugging plates are fixedly mounted on the output rods of the plurality of cylinders. The plurality of plugging plates respectively contact the bottoms of two of the sand discharge pipes with the sand discharge ports of the cyclone desander.

5. The universal geothermal well sand removal and filtration integrated device according to claim 2, It is characterized in that Two branch pipes are fixedly installed at the bottom of the drainage pipe, and the two branch pipes are fixedly connected to the two cover plates respectively. The two branch pipes are made of rubber hoses, and valves are arranged on the two branch pipes. A one-way valve is arranged on the drainage pipe.

6. The universal geothermal well sand removal and filtration integrated device according to claim 3, It is characterized in that A collecting barrel is fixedly installed on the top of the sand collecting box, and the collecting barrel is sleeved outside the cyclone sand remover and the two filter boxes. A fixing pipe is fixedly installed on the side of the sand collecting box away from the fixing frame, and protective covers are threadedly installed on the fixing pipe and the drainage pipe.

7. The universal geothermal well sand removal and filtration integrated device according to claim 2, It is characterized in that Scraping rings are movably sleeved outside the two inner cylinders, and the outer walls of the two scraping rings are respectively in contact with the inner walls of the two outer cylinders. Two connecting rods are fixedly installed on the tops of the two scraping rings, and the multiple connecting rods are respectively connected to the bottoms of the two cover plates by bolts.

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