A hierarchical pumping device for geothermal new energy

Abstract

The utility model discloses a kind of hierarchical pumping devices for geothermal new energy, belong to drainage device technical field, including mounting plate and box, the inside installation of box has multistage water pump, the water inlet of multistage water pump is connected and is installed with connecting pipe, the top surface fixed mounting of mounting plate is equipped with filter box, and connecting pipe is communicated with filter box;Filter box is connected and is installed with water suction pipe on the side away from connecting pipe, the filter cartridge is installed at the end of water suction pipe, the top surface of filter box is equipped with two strip holes symmetrically, the strip hole is slidably installed with strip plate, the bottom of strip plate is fixedly installed with filter screen, and slot is arranged in the side wall of strip plate, the side wall of strip hole is equipped with mounting groove, and profile disc is rotatably installed in mounting groove.Compared with prior art, the device can improve the filtering effect of the front end of hierarchical pumping, and also facilitates the disassembly and assembly of the filtering structure.

Description

Technical Field

[0001] This utility model belongs to the field of drainage device technology, and in particular, it is a staged pumping device for geothermal new energy. Background Technology

[0002] Geothermal energy is a green, low-carbon, and recyclable renewable energy source. Compared with other green energy sources such as solar, wind, and tidal energy, it has the advantage of not being affected by external factors such as seasons, climate, and diurnal variations. If it meets the conditions for development and utilization, it becomes a geothermal resource with development significance. Currently, in the process of geothermal exploration and development, it is necessary to conduct pumping tests on wells to obtain hydrogeological parameters of the geothermal reservoir, providing a basis for later exploitation and utilization. In current geothermal energy staged pumping devices, impurities in the water need to be filtered before the staged pump to prevent excessive friction between impurities and the staged pump, which would affect the service life of the staged pumping device.

[0003] A search revealed a Chinese patent document (authorization announcement number CN223282290U) entitled "A Staged Pumping Device for Geothermal New Energy," relating to the field of drainage device technology. The device includes a base plate, a vibration damping structure, and a pumping structure. The vibration damping structure is fixed to the upper surface of the base plate, and the pumping structure is fixed to the upper surface of the vibration damping structure. The vibration damping structure absorbs vibration impact for the pumping structure. The pumping structure includes a soundproof protective box, a multi-stage pump, and a single-stage pump, with the multi-stage pump and single-stage pump connected in series and fixed inside the soundproof protective box. While the device effectively absorbs vibration, provides sound insulation and protection against operating noise, and meets the application scenarios of high head and large flow rates, satisfying the pumping needs in the field of geothermal new energy exploration and development, and the filter box is easy to replace, in actual use, the filter box extends to the bottom of the well along with the pumping pipe. Although the filter box is easy to disassemble, in actual use, if blockage occurs, the pumping pipe and filter box need to be pulled out and disassembled again, making replacement extremely inconvenient. Therefore, a staged pumping device for geothermal new energy is urgently needed to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a staged pumping device for geothermal energy sources to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a graded pumping device for geothermal new energy, comprising an installation plate for installing the graded pumping device and a housing for installing the graded pumping device, wherein a multi-stage water pump is installed inside the housing, and a connecting pipe is connected to the inlet of the multi-stage water pump; a filter box is fixedly installed on the top surface of the installation plate, and the connecting pipe is connected to the filter box. A water suction pipe is connected to the side of the filter box away from the connecting pipe. A filter cylinder is installed at the end of the water suction pipe. Two strip-shaped holes are symmetrically opened on the top surface of the filter box. A strip plate is slidably installed in the strip-shaped holes. A filter screen is fixedly installed at the bottom of the strip plate. A slot is opened on the side wall of the strip plate. An installation groove is opened on the side wall of the strip hole. A special-shaped plate is rotatably installed in the installation groove and corresponds to the two slots. A rotating rod is fixedly installed on the top surface of the special-shaped plate and extends to the top of the filter box.

[0006] Preferably, the irregularly shaped disks are symmetrically arranged, and the bottom of the irregularly shaped disks is inclined.

[0007] Preferably, a sealing gasket is fixedly bonded to the bottom of the strip plate, and the sealing gasket is sealed and adhered to the inner wall of the strip hole.

[0008] Preferably, an installation cylinder is fixedly installed on the side wall of the filter box, and a push spring is fixedly installed on the inner wall of the installation cylinder.

[0009] Preferably, a plug rod is fixedly installed at the end of the push spring on the inner wall of the mounting cylinder, and a groove is provided on the side wall of the rotating rod, and the plug rod matches the groove.

[0010] Preferably, a vertical rod is fixedly installed on the side wall of the insertion rod, and a sliding hole is opened through the top surface of the mounting cylinder, with the vertical rod extending upward to above the sliding hole.

[0011] Preferably, a sealing ring is fixedly bonded to the side wall of the filter screen, and the outer wall of the sealing ring is sealed and fitted to the inner wall of the filter box.

[0012] Preferably, two limiting blocks are symmetrically fixedly installed on the side wall of the insertion rod, and limiting grooves are symmetrically opened on the inner wall of the mounting cylinder.

[0013] Preferably, the two limiting blocks fixedly connected to the side wall of the insertion rod are slidably connected to the inside of the two limiting grooves opened in the inner wall of the mounting cylinder.

[0014] Compared with the prior art, the technical effects and advantages of this utility model are as follows: This staged pumping device for geothermal energy utilizes a multi-stage filtration system consisting of a filter cartridge and an internal filter screen within the filter box. This system intercepts impurities in the geothermal water at the source, significantly reducing the risk of clogging in the multi-stage pumps and providing crucial support for the long-term stable operation of the device. The filter cartridge at the end of the suction pipe initially filters larger particles, preventing them from entering subsequent pipelines. The filter screen inside the filter box further refines the water, ensuring the cleanliness of the water entering the multi-stage pumps. More importantly, the filter screen is designed for extremely convenient installation and removal. Through the sliding engagement of the strip plates and perforations, operators can remove the filter screen for cleaning or replacement without disassembling the entire filter box; they only need to operate the relevant components. This design greatly shortens maintenance time and reduces maintenance difficulty. Meanwhile, the sealing ring on the side wall of the filter screen is sealed and fits tightly with the inner wall of the filter box, and the sealing gasket at the bottom of the strip plate is tightly connected with the inner wall of the strip hole, effectively preventing unfiltered water from leaking out of the gaps, ensuring that the filtration effect is not compromised, which not only improves the filtration efficiency, but also reduces the maintenance cost and labor intensity, solving the pain points of traditional filtration devices that are cumbersome to maintain and affect the operating efficiency of the device. This staged pumping device for geothermal energy utilizes a combination of a shaped disc and a push rod to achieve stable fixation and precise adjustment of the strip plate and filter screen. This ensures reliable component installation while enhancing operational flexibility. Firstly, rotating the push rod drives the shaped disc. Due to the inclined bottom of the disc, rotation pushes the strip plate downwards, ensuring the filter screen fits tightly against the inner wall of the filter box. Simultaneously, the shaped disc extends into the slot of the strip plate, effectively securing it and preventing displacement of the filter screen under water flow impact, thus ensuring stable filtration. Secondly, the cooperation between the push rod inside the mounting cylinder and the groove on the side wall of the push rod further strengthens the fixation effect between the push rod and the shaped disc, preventing accidental rotation of the disc due to vibration or other factors during device operation and ensuring the stability of the fixed structure. Adjusting the push rod is also very convenient; operators can control its extension and retraction by pushing the vertical rod, separating or engaging the push rod with the groove, making operation simple and efficient. This dual fixing and adjustment mechanism not only makes the installation position of the filter screen precise and controllable, but also enables the device to quickly adjust the state of the components when facing different working conditions or maintenance needs, making it more adaptable. This staged pumping device for geothermal energy utilizes a multi-layered sealing structure and precise limiting design to effectively improve the device's sealing performance and structural stability, reducing potential malfunctions. Regarding sealing, the device incorporates multiple sealing components: the sealing gasket at the bottom of the strip plate seals tightly against the inner wall of the strip holes, preventing water leakage from the filter box; the sealing ring on the side wall of the filter screen tightly adheres to the inner wall of the filter box, preventing unfiltered water from mixing with filtered water and ensuring filtration efficiency. These sealing structures collectively create a robust waterproof system, preventing damage or performance degradation due to water leakage. Regarding limiting, the limiting groove on the inner wall of the mounting cylinder cooperates with the limiting block on the side wall of the insertion rod, providing precise guidance for the extension and retraction of the insertion rod, preventing deviation or jamming during movement, and ensuring accurate alignment of the insertion rod with the groove of the rotating rod. Simultaneously, the limiting design prevents the insertion rod from excessively extending or retracting due to the force of the push spring, protecting the lifespan of both the push spring and the insertion rod. The comprehensive sealing and limiting design allows for tighter fit and smoother movement of all components, significantly improving the overall reliability and durability of the structure. Compared with existing technologies, this staged pumping device for geothermal energy can improve the filtration effect of the front end of the staged pumping system while also facilitating the disassembly and assembly of the filtration structure. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the multi-stage water pump and connecting pipe in this utility model; Figure 3 This is a schematic diagram of the structure of the strip-shaped hole, the filter screen, and the sealing gasket in this utility model; Figure 4 This utility model Figure 1 Enlarged schematic diagram of section A in the middle; Figure 5 This is a schematic diagram of the structure of the transfer rod and the irregular-shaped disc in this utility model; Figure 6 This is a schematic diagram of the structure of the insert rod and push spring in this utility model.

[0017] Explanation of reference numerals in the attached figures: In the diagram: 1. Mounting plate; 2. Housing; 3. Multistage water pump; 4. Connecting pipe; 5. Filter box; 6. Suction pipe; 7. Filter cylinder; 8. Strip hole; 9. Strip plate; 10. Filter screen; 11. Slot; 12. Mounting slot; 13. Rotating rod; 14. Irregularly shaped plate; 15. Sealing gasket; 16. Mounting cylinder; 17. Groove; 18. Insert rod; 19. Push spring; 20. Limiting block; 21. Vertical rod. Detailed Implementation

[0018] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0019] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0020] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0021] like Figures 1 to 6 The main structure of a staged pumping device for geothermal new energy is shown below; The installation includes a mounting plate 1 and a housing 2 for the geothermal new energy graded pumping device. The housing 2 contains a multi-stage water pump 3. The essence of the graded pumping device is to break down "single-stage lifting" into "multi-stage relay lifting." Multiple working units (impellers / pump chambers) sequentially perform work on the water flow, gradually accumulating pressure and kinetic energy to ultimately achieve high-lift output. After startup, the first-stage impeller or pump body rotates at high speed, forming a low-pressure zone in its central area, similar to "vortex suction." The water to be pumped, such as from a reservoir or groundwater, is drawn into the first-stage pump chamber through the inlet pipe. The drawn-in water first enters the first-stage pump chamber, where it is struck and accelerated by the high-speed rotating impeller, converting kinetic energy into pressure energy, thus initially increasing the water pressure. The pressure-increased water flow is then guided by a guide structure fixed within the pump chamber, smoothly entering the second-stage pump chamber, where it interacts again with the second-stage impeller, further accumulating pressure. The inlet of the multistage water pump 3 is connected to a connecting pipe 4. A filter box 5 is fixedly installed on the top surface of the mounting plate 1. The connecting pipe 4 is connected to the filter box 5. The filter box 5 is used to filter the water sucked up by the suction pipe 6, thereby preventing impurities such as sand and gravel from being mixed in the water. If impurities such as sand and gravel rub against the turbine blades inside the multistage water pump 3 for a long time, it will directly reduce the service life of the multistage water pump 3. A water suction pipe 6 is connected to the side of the filter box 5 away from the connecting pipe 4. A filter cylinder 7 is installed at the end of the water suction pipe 6. The side wall of the filter cylinder 7 has multiple mesh holes with a large aperture, which can filter larger impurities and gravel through light, thereby performing preliminary filtration of the water. Two strip-shaped holes 8 are symmetrically opened on the top surface of the filter box 5. There is a boss at the lower end of the inside of the strip-shaped hole 8. A strip plate 9 is slidably installed inside the strip-shaped hole 8. When the strip plate 9 is snapped into the inside of the strip-shaped hole 8, the strip plate 9 will abut against the top surface of the boss, which facilitates the installation of the strip plate 9. A filter screen 10 is fixedly installed at the bottom of the strip plate 9, and a slot 11 is provided on the side wall of the strip plate 9. The filter screens 10 are symmetrically arranged inside the filter box 5. Therefore, when the filter screens 10 need to be cleaned, the filter screen 10 away from the connecting pipe 4 can be removed and cleaned first. After cleaning and reinstalling the filter screen 10, the other filter screen 10 can be removed and cleaned. The filter screens 10 inside the filter box 5 further finely filter the water, ensuring that the water entering the multi-stage water pump 3 is clean. More importantly, the installation and removal design of the filter screen 10 is extremely convenient. Through the sliding cooperation between the strip plate 9 and the strip hole 8, the staff does not need to disassemble the entire filter box 5. They only need to operate the relevant parts to remove the filter screen 10 for cleaning or replacement. This design greatly shortens the maintenance time and reduces the maintenance difficulty. The side wall of the strip hole 8 is provided with an installation groove 12, and a shaped disk 14 is rotatably installed in the installation groove 12, corresponding to two slots 11. A rotating rod 13 is fixedly installed on the top surface of the shaped disk 14 and extends to the top of the filter box 5. The shaped disks 14 are symmetrically arranged, and the bottom of the shaped disks 14 is inclined. When the rotating rod 13 drives the two shaped disks 14 to rotate into the installation groove 12, it is convenient to install the strip plate 9 into the inside of the strip hole 8. After the strip plate 9 is snapped into the inside of the strip hole 8, the rotating rod 13 can drive the two shaped disks 14 to rotate into the inside of the two slots 11. The bottoms of the two shaped disks 14 are inclined. As the shaped disks 14 rotate, they can push the two strip plates 9 downward and make them fit tightly against the inner wall of the strip hole 8, while further improving the stability of the installation of the strip plate 9. Reverse rotation of the rotating rod 13 can contact the limiting position of the strip plate 9.

[0022] A sealing gasket 15 is fixedly bonded to the bottom of the strip plate 9, and the sealing gasket 15 is sealed and fitted to the inner wall of the strip hole 8. When the irregular disc 14 rotates into the two slots 11, it presses the strip plate 9 down and compresses the sealing gasket 15 at the same time, thereby further improving the sealing effect between the strip plate 9 and the strip hole 8.

[0023] A mounting cylinder 16 is fixedly installed on the side wall of the filter box 5. A push spring 19 is fixedly installed on the inner wall of the mounting cylinder 16. An insertion rod 18 is fixedly installed at the end of the push spring 19 on the inner wall of the mounting cylinder 16. A groove 17 is provided on the side wall of the rotating rod 13, and the insertion rod 18 matches the groove 17. When the rotating rod 13 is rotated to drive the irregularly shaped disk 14 to rotate into the slot 11, the groove 17 on the side wall of the rotating rod 13 will correspond to the insertion rod 18. At the same time, the push spring 19 pushes the insertion rod 18 to abut against the side wall of the rotating rod 13. When the insertion rod 18 corresponds to the groove 17, the push spring 19 will push the insertion rod 18 to engage inside the groove 17, thereby fixing the irregularly shaped disk 14 and the rotating rod 13, thus preventing the irregularly shaped disk 14 from loosening during use.

[0024] A vertical rod 21 is fixedly installed on the side wall of the insertion rod 18. A sliding hole is opened through the top surface of the mounting cylinder 16, and the vertical rod 21 extends upward to the top of the sliding hole. When it is necessary to disassemble the strip plate 9 and the filter screen 10, the vertical rod 21 is moved first to slide along the sliding hole, and the insertion rod 18 is moved into the mounting cylinder 16. When the insertion rod 18 moves out of the groove 17, the rotating rod 13 can be rotated to drive the irregularly shaped disk 14 to rotate and move out of the slot 11.

[0025] A sealing ring is fixedly bonded to the side wall of the filter screen 10. The outer wall of the sealing ring is sealed and adhered to the inner wall of the filter box 5. The sealing ring is squeezed and adhered between the filter screen 10 and the inner wall of the filter box 5, thereby further improving the filtration effect of the filter screen 10 and preventing unfiltered water from flowing through the gap between the filter screen 10 and the inner wall of the filter box 5.

[0026] Two limiting blocks 20 are symmetrically fixedly installed on the side wall of the insertion rod 18. Limiting grooves are symmetrically opened on the inner wall of the mounting cylinder 16. The two limiting blocks 20 fixedly connected to the side wall of the insertion rod 18 are slidably connected to the two limiting grooves opened on the inner wall of the mounting cylinder 16. The two limiting blocks 20 can effectively limit the sliding direction of the insertion rod 18, and further improve the stability of the insertion rod 18 when sliding.

[0027] Working principle This staged pumping device for geothermal energy utilizes a multi-stage relay lifting mechanism to achieve high-lift pumping, while ensuring operational efficiency through dual filtration and a convenient maintenance structure. During operation, the device first draws in water through the suction pipe 6. The filter cylinder 7 at the end of the suction pipe 6 uses a large-aperture mesh for preliminary filtration, intercepting larger impurities and gravel to prevent them from entering subsequent stages. The water then enters the filter box 5, where symmetrically arranged filter screens 10 perform fine filtration. The sealing rings on the side walls of the filter screens 10 and the inner wall of the filter box 5 ensure a tight seal, preventing unfiltered water from flowing through gaps. This ensures the cleanliness of the water entering the multi-stage pump 3, preventing sand and other impurities from rubbing against the pump turbine blades and extending the pump's lifespan. The filtered water enters the multi-stage pump 3 inside the housing 2 via the connecting pipe 4. The first-stage impeller rotates at high speed to create a low-pressure zone for water intake, accelerating the water flow in the first-stage pump chamber and converting kinetic energy into pressure energy. The water is then guided into the second-stage pump chamber by the guide vanes, where it interacts with the second-stage impeller to achieve pressure superposition. Through the sequential work of multiple impellers and pump chambers, high-head output is ultimately achieved. During maintenance, if it is necessary to clean the filter screen 10, first move the vertical rod 21 to retract the insertion rod 18 into the mounting cylinder 16, causing the insertion rod 18 to disengage from the groove 17 of the rotating rod 13, thus releasing the fixation on the rotating rod 13. Then, rotate the rotating rod 13 to rotate the shaped disc 14 out of the slot 11 of the strip plate 9, allowing the strip plate 9 to slide out of the strip hole 8 and the filter screen 10 to be removed for cleaning. During installation, the reverse operation is used. The irregularly shaped disc 14 rotates into the slot 11, which can push the strip plate 9 to fit tightly against the hole wall. The insertion rod 18 is inserted into the groove 17 to fix the rotating rod 13 under the action of the push spring 19. At the same time, the bottom sealing gasket 15 of the strip plate 9 is compressed, which further improves the sealing effect and allows for the alternating cleaning of the two filter screens 10.

[0028] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A staged pumping device for geothermal new energy, comprising a mounting plate (1) for installing the staged pumping device and a housing (2) for installing the staged pumping device, characterized in that: The box (2) is equipped with a multi-stage water pump (3), and the inlet of the multi-stage water pump (3) is connected to a connecting pipe (4). The top surface of the mounting plate (1) is fixedly installed with a filter box (5), and the connecting pipe (4) is connected to the filter box (5). A water suction pipe (6) is connected to the side of the filter box (5) away from the connecting pipe (4). A filter cylinder (7) is installed at the end of the water suction pipe (6). Two strip holes (8) are symmetrically opened on the top surface of the filter box (5). A strip plate (9) is slidably installed in the strip hole (8). A filter screen (10) is fixedly installed at the bottom of the strip plate (9). A slot (11) is opened on the side wall of the strip plate (9). An installation groove (12) is opened on the side wall of the strip hole (8). A shaped disk (14) is rotatably installed in the installation groove (12) and corresponds to the two slots (11). A rotating rod (13) is fixedly installed on the top surface of the shaped disk (14) and extends to the top of the filter box (5).

2. The staged pumping device for geothermal new energy as described in claim 1, characterized in that: The irregular disk (14) is symmetrically arranged, and the bottom of the irregular disk (14) is inclined.

3. The staged pumping device for geothermal new energy as described in claim 1, characterized in that: A sealing gasket (15) is fixedly bonded to the bottom of the strip plate (9), and the sealing gasket (15) is sealed and adhered to the inner wall of the strip hole (8).

4. A staged pumping device for geothermal new energy as described in claim 1, characterized in that: The filter box (5) is fixedly installed with an installation cylinder (16) on its side wall, and a push spring (19) is fixedly installed on the inner wall of the installation cylinder (16).

5. A staged pumping device for geothermal new energy according to claim 4, characterized in that: The end of the push spring (19) on the inner wall of the mounting cylinder (16) is fixedly installed with a plug rod (18), and a groove (17) is opened on the side wall of the rotating rod (13), and the plug rod (18) matches the groove (17).

6. A staged pumping device for geothermal new energy according to claim 5, characterized in that: A vertical rod (21) is fixedly installed on the side wall of the insertion rod (18), and a sliding hole is opened through the top surface of the mounting cylinder (16), with the vertical rod (21) extending upward to above the sliding hole.

7. A staged pumping device for geothermal new energy according to claim 1, characterized in that: The side wall of the filter screen (10) is fixedly bonded with a sealing ring, and the outer wall of the sealing ring is sealed and attached to the inner wall of the filter box (5).

8. A staged pumping device for geothermal new energy according to claim 5, characterized in that: Two limiting blocks (20) are symmetrically fixedly installed on the side wall of the insertion rod (18), and limiting grooves are symmetrically opened on the inner wall of the mounting cylinder (16).

9. A staged pumping device for geothermal new energy according to claim 8, characterized in that: The two limiting blocks (20) fixedly connected to the side wall of the insertion rod (18) are respectively slidably connected to the inside of the two limiting grooves opened on the inner wall of the mounting cylinder (16).

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