Corrosion-resistant desanding device for geothermal energy development

Abstract

The corrosion-resistant desanding device for geothermal energy development belongs to the technical field of geothermal drilling and comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a cover plate through a supporting structure, the middle of the upper end of the bottom plate is fixedly connected with a connecting pipe, and a groove is formed in one side of the lower end of the curved surface of the connecting pipe. A bin door is hinged to one side of the groove, a hydraulic valve is arranged at the position, located at the upper end of the groove, of the connecting pipe, an air inlet pipe is fixedly connected to the side, located at the upper end of the hydraulic valve, of the curved surface of the connecting pipe, a lower branch pipe is fixedly connected to the upper end of the connecting pipe, and the lower branch pipe is provided with two air outlets and fixedly connected with middle pipes through connecting flanges. Desanding assemblies are mounted in the middles of the symmetrical middle pipes, upper branch pipes are fixedly connected to the upper ends of the symmetrical middle pipes through connecting flanges, two air inlets are formed in the upper branch pipes, and air outlet pipes are fixedly connected to the upper ends of the middles of the upper branch pipes and penetrate through the middle of the cover plate.

Description

Technical Field

[0001] The invention belongs to the field of geothermal drilling technology, and specifically relates to a corrosion-resistant sand removal device for geothermal energy development. Background Art

[0002] Geothermal drilling is used for drilling geothermal steam and geothermal water. It is an important special technology and a necessary means for exploring and exploiting geothermal fluids. At present, after geothermal drilling equipment is working, a lot of sand and gravel often enter the equipment. If it is not cleaned regularly, it will affect the service life of the equipment. Therefore, it is necessary to design a sand removal device for geothermal drilling equipment.

[0003] The prior art discloses a corrosion-resistant sand removal device for geothermal energy development with patent announcement number CN220539608U. The corrosion-resistant sand removal device for geothermal energy development provided by the above patent adopts a surfacing welding method to perform corrosion protection on the surface in contact with the high-temperature steam coming out of the geothermal well. The device is suitable for corrosive wells containing CO2 and H2S. The sand removal part is set in three sections, and the hole spacing and aperture of each section are different to remove sand and gravel. However, the following deficiencies still exist in actual use: From a practical point of view, the device needs to be shut down for maintenance of the sand removal part, and the sand and gravel inside need to be cleaned in time.

[0004] Therefore, a corrosion-resistant sand removal device for geothermal energy development is needed to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this invention is to provide a corrosion-resistant sand removal device for geothermal energy development to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a corrosion-resistant sand removal device for geothermal energy development, comprising a base plate, the upper end of the base plate is fixedly connected to a cover plate by a supporting structure, and a connecting pipe is fixedly connected to the middle part of the upper end of the base plate, a groove is provided on one side of the lower end of the curved surface of the connecting pipe, a warehouse door is hinged on one side of the groove, and a hydraulic valve is provided at the upper end of the groove, and an air inlet pipe is fixedly connected to the side of the curved surface of the connecting pipe at the upper end of the hydraulic valve, and the upper end of the connecting pipe is fixedly connected to a lower branch pipe, the lower branch pipe is provided with two air outlets, and both are fixedly connected to an intermediate pipe through a connecting flange, a sand removal assembly is symmetrically installed in the middle of the intermediate pipe, and the upper ends of the intermediate pipes are symmetrically fixedly connected to the two air inlets of the upper branch pipe through a connecting flange, and the upper end of the middle of the upper branch pipe is fixedly connected to the air outlet pipe, and passes through the middle of the cover plate.

[0007] It should be noted that hydraulic valves are installed at both ends of the upper branch pipe and the lower branch pipe.

[0008] It is further worth mentioning that the support structure includes a number of first support columns and a number of second support columns, and the number of the first support columns and the number of the second support columns are four, and the upper and lower ends of the four first support columns are respectively fixedly connected to the four corners of the opposite surfaces of the base plate and the cover plate, and the upper and lower ends of the four second support columns are respectively fixedly connected to the base plate and the cover plate, and are located at the four corners of the connecting pipe.

[0009] It should be further explained that the four second support columns are located on the upper end of the intake pipe curved surface of the connecting pipe and are fixedly connected to a fixing plate, and the middle portion of the fixing plate is installed on the outer surface of the connecting pipe.

[0010] As a preferred embodiment, the connecting pipe is provided with a card slot on the outside of the groove, a sealing strip is fixedly connected to the middle of the outer surface of the card slot, and a collecting groove is installed in the groove, the upper end of the collecting groove is rounded, and the connecting pipe is fixedly connected to a symmetrical support plate at the lower end of the collecting groove.

[0011] As a preferred embodiment, the edges of the outer surfaces of the warehouse doors are fixedly connected to limit plates.

[0012] As a preferred embodiment, fixing rings are fixedly connected to both ends of the outer surface of the lower branch pipe or the upper branch pipe on opposite sides of the second supporting column which is symmetrical in front and back.

[0013] As a preferred embodiment, the inner surfaces of the connecting pipe, the lower branch pipe, the upper branch pipe and the outlet pipe are coated with corrosion-resistant coating.

[0014] Compared with the existing technology, the corrosion-resistant sand removal device for geothermal energy development provided by this new invention has at least the following beneficial effects:

[0015] (1) Two air outlets are provided through the lower branch pipe, and both are fixedly connected to the intermediate pipe through a connecting flange. A sand removal assembly is installed in the middle of the symmetrical intermediate pipe, and the upper end of the symmetrical intermediate pipe is fixedly connected to the upper branch pipe through a connecting flange. Therefore, one of the symmetrical intermediate pipes can be replaced in time, thereby facilitating subsequent installation and maintenance, thereby increasing the practicality of the corrosion-resistant sand removal device for geothermal energy development.

[0016] (2) By closing the hydraulic valve 8 on the connecting pipe 10, the compartment door 12 is opened, and then the collecting tank 14 is taken out and cleaned, thereby increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of the new model;

[0018] Figure 2 For this new Figure 1 A schematic diagram of the enlarged structure at point A;

[0019] Figure 3 This is a schematic diagram of the front structure of the new model;

[0020] Figure 4 This is a schematic diagram of the intermediate tube structure of this novel invention.

[0021] In the figure: 1. Base plate; 2. Support structure; 201. First support column; 202. Second support column; 3. Cover plate; 4. Lower branch pipe; 5. Fixing ring; 6. Upper branch pipe; 7. Exhaust pipe; 8. Hydraulic valve; 9. Intermediate pipe; 10. Connecting pipe; 1001. Groove; 1002. Slot; 1003. Support plate; 11. Sealing strip; 12. Warehouse door; 13. Limiting plate; 14. Collecting tank; 1401. Fillet; 15. Fixing plate; 16. Sand removal assembly; 17. Connecting flange; 18. Inlet pipe. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the embodiments.

[0023] See also Figure 1-4 The present invention provides a corrosion-resistant sand removal device for geothermal energy development, comprising: a bottom plate 1, the upper end of the bottom plate 1 is fixedly connected to a cover plate 3 through a supporting structure 2, and a connecting pipe 10 is fixedly connected to the middle part of the upper end of the bottom plate 1, a groove 1001 is provided on one side of the lower end of the curved surface of the connecting pipe 10, a warehouse door 12 is hingedly connected to one side of the groove 1001, and a hydraulic valve 8 is provided at the upper end of the connecting pipe 10 located in the groove 1001, and an air intake pipe 18 is fixedly connected to the side of the upper end of the hydraulic valve 8 on the curved surface of the connecting pipe 10, and the upper end of the connecting pipe 10 is fixedly connected to the lower branch pipe 4, the lower branch pipe 4 is provided with two air outlets, and both are fixedly connected to the middle pipe 9 through a connecting flange 17, a sand removal assembly 16 is installed in the middle of the symmetrical middle pipes 9, and the upper ends of the symmetrical middle pipes 9 are fixedly connected to the two air inlets of the upper branch pipe 6 through a connecting flange 17, and the upper middle end of the upper branch pipe 6 is fixedly connected to the air outlet pipe 7, and passes through the middle of the cover plate 3.

[0024] Further as Figure 1 and Figure 3 As shown, it is worth mentioning that hydraulic valves 8 are respectively installed at both ends of the upper branch pipe 6 and the lower branch pipe 4. By installing hydraulic valves 8 at both ends of the upper branch pipe 6 and the lower branch pipe 4, the replacement of the symmetrical intermediate pipe 9 can be facilitated.

[0025] Further as Figure 1 and Figure 3As shown, it is worth mentioning that the support structure 2 includes a plurality of first support columns 201 and a plurality of second support columns 202, and the number of the plurality of first support columns 201 and the plurality of second support columns 202 are four, and the upper and lower ends of the four first support columns 201 are respectively fixedly connected to the four corners of the opposite surfaces of the base plate 1 and the cover plate 3, and the upper and lower ends of the four second support columns 202 are respectively fixedly connected to the base plate 1 and the cover plate 3, and are located at the four corners of the connecting pipe 10. Through the support structure 2, the connecting pipe 10, the lower branch pipe 4, the upper branch pipe 6 and the air outlet pipe 7 can be supported to increase the integrity of the device.

[0026] Further as Figure 2 As shown, it is worth mentioning that the four second support columns 202 are located at the upper end of the curved surface of the air intake pipe 18 of the connecting pipe 10 and are fixedly connected to a fixing plate 15. The middle part of the fixing plate 15 is installed on the outer surface of the connecting pipe 10. The connecting pipe 10 can be limited by the fixing plate 15.

[0027] This solution has the following working process: two air outlets are provided through the lower branch pipe 4, and both are fixedly connected to the intermediate pipe 9 through the connecting flange 17. The middle part of the symmetrical intermediate pipe 9 is installed with a sand removal component 16, and the upper end of the symmetrical intermediate pipe 9 is fixedly connected to the upper branch pipe 6 through the connecting flange 17, so that one of the symmetrical intermediate pipes 9 can be replaced in time, and by closing the hydraulic valve 8 on the connecting pipe 10, the warehouse door 12 is opened, and then the collection tank 14 is taken out, and then the collection tank 14 can be cleaned.

[0028] According to the above working process, it can be known that: by installing hydraulic valves 8 at both ends of the upper branch pipe 6 and the lower branch pipe 4, the symmetrical intermediate pipe 9 can be easily replaced. The connecting pipe 10, the lower branch pipe 4, the upper branch pipe 6 and the air outlet pipe 7 can be supported by the supporting structure 2 to increase the integrity of the device. The connecting pipe 10 can be limited by the fixing plate 15.

[0029] Further as Figure 2 As shown, it is worth mentioning that the connecting tube 10 is provided with a card groove 1002 on the outside of the groove 1001, and a sealing strip 11 is fixedly connected to the middle of the outer surface of the card groove 1002, and the groove 1001 is installed with a collecting groove 14, the upper end of the collecting groove 14 is rounded 1401, and the connecting tube 10 is fixedly connected to a symmetrical support plate 1003 at the lower end of the collecting groove 14. The groove 1001, the card groove 1002 and the sealing strip 11 on one side of the connecting tube 10 can increase the airtightness of the groove 1001, and the collection groove 14 can facilitate the cleaning of the device.

[0030] Further as Figure 2 As shown, it is worth mentioning that the edges of the outer surface of the warehouse door 12 are fixedly connected to the limit plates 13, and the limit plates 13 facilitate the fixation of the warehouse door 12.

[0031] Further as Figure 3 As shown, it is worth mentioning that the opposite sides of the front and rear symmetrical second support columns 202 are located on the outer surface of the lower branch pipe 4 or the upper branch pipe 6 and are fixedly connected with fixing rings 5 ​​at both ends. The fixing rings 5 ​​make it convenient to fix the lower branch pipe 4 or the upper branch pipe 6 on the second support column 202.

[0032] Further as Figure 1 As shown, it is worth mentioning that the inner surfaces of the connecting pipe 10, the lower branch pipe 4, the upper branch pipe 6 and the outlet pipe 7 are coated with corrosion-resistant paint, thereby increasing the corrosion resistance of the geothermal energy development device.

[0033] In summary: two air outlets are provided through the lower branch pipe 4, and both are fixedly connected to the intermediate pipe 9 through the connecting flange 17. The middle of the symmetrical intermediate pipe 9 is installed with a sand removal component 16, and the upper end of the symmetrical intermediate pipe 9 is fixedly connected to the upper branch pipe 6 through the connecting flange 17, so that one of the symmetrical intermediate pipes 9 can be replaced in time, and by closing the hydraulic valve 8 on the connecting pipe 10, the warehouse door 12 is opened, and then the collecting tank 14 is taken out, and then the collecting tank 14 can be cleaned. The groove 1001, the card groove 1002 and the sealing strip 11 on one side of the connecting pipe 10 can increase the airtightness of the groove 1001, and the collection tank 14 is convenient for cleaning the device. The limit plate 13 facilitates the fixation of the warehouse door 12. The fixing ring 5 makes the lower branch pipe 4 or the upper branch pipe 6 conveniently fixed on the second support column 202. The inner surfaces of the connecting pipe 10, the lower branch pipe 4, the upper branch pipe 6 and the air outlet pipe 7 are coated with corrosion-resistant paint to increase the corrosion resistance of the geothermal energy development device.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and description merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the claimed invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant sand removal device for geothermal energy development, comprising a base plate (1), characterized in that: The upper end of the bottom plate (1) is fixedly connected to a cover plate (3) via a supporting structure (2), and a connecting pipe (10) is fixedly connected to the middle of the upper end of the bottom plate (1), a groove (1001) is provided on one side of the lower end of the curved surface of the connecting pipe (10), a door (12) is hingedly connected to one side of the groove (1001), and a hydraulic valve (8) is provided on the upper end of the groove (1001), and an air intake pipe (18) is fixedly connected to one side of the curved surface of the connecting pipe (10) on the upper end of the hydraulic valve (8). ), and the upper end of the connecting pipe (10) is fixedly connected to the lower branch pipe (4), the lower branch pipe (4) is provided with two air outlets, and both are fixedly connected to the middle pipe (9) through a connecting flange (17), and the middle of the middle pipe (9) is symmetrically installed with a sand removal component (16), and the upper end of the middle pipe (9) is symmetrically fixedly connected to the two air inlets of the upper branch pipe (6) through a connecting flange (17), and the upper end of the middle part of the upper branch pipe (6) is fixedly connected to the air outlet pipe (7), and passes through the middle of the cover plate (3).

2. The corrosion-resistant sand removal device for geothermal energy development according to claim 1, characterized in that: Hydraulic valves (8) are respectively installed at both ends of the upper branch pipe (6) and the lower branch pipe (4).

3. The corrosion-resistant sand removal device for geothermal energy development according to claim 1, characterized in that: The support structure (2) comprises a plurality of first support columns (201) and a plurality of second support columns (202), the number of each of the plurality of first support columns (201) and the plurality of second support columns (202) being four, and the upper and lower ends of the four first support columns (201) are respectively fixedly connected to the four corners of the opposite surfaces of the bottom plate (1) and the cover plate (3), and the upper and lower ends of the four second support columns (202) are respectively fixedly connected to the bottom plate (1) and the cover plate (3), and are located at the four corners of the connecting pipe (10).

4. The corrosion-resistant sand removal device for geothermal energy development according to claim 3, characterized in that: The four second support columns (202) are located on the upper end of the curved surface of the air inlet pipe (18) of the connecting pipe (10) and are fixedly connected to a fixing plate (15), and the middle portion of the fixing plate (15) is installed on the outer surface of the connecting pipe (10).

5. The corrosion-resistant sand removal device for geothermal energy development according to claim 1, characterized in that: The connecting pipe (10) is provided with a clamping groove (1002) on the outside of the groove (1001), and a sealing strip (11) is fixedly connected to the middle of the outer surface of the clamping groove (1002). The groove (1001) is provided with a collecting groove (14), and the upper end of the collecting groove (14) is rounded (1401). The connecting pipe (10) is fixedly connected to a symmetrical support plate (1003) at the lower end of the collecting groove (14).

6. The corrosion-resistant sand removal device for geothermal energy development according to claim 1, characterized in that: The outer surface edges of the bin door (12) are all fixedly connected to the limiting plate (13).

7. The corrosion-resistant sand removal device for geothermal energy development according to claim 3, characterized in that: The second support column (202) is symmetrical in front and back, and opposite sides thereof are located on the outer surface of the lower branch pipe (4) or the upper branch pipe (6), and both ends thereof are fixedly connected with a fixing ring (5).

8. The corrosion-resistant sand removal device for geothermal energy development according to claim 1, characterized in that: The inner surfaces of the connecting pipe (10), the lower branch pipe (4), the upper branch pipe (6) and the air outlet pipe (7) are coated with corrosion-resistant paint.

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