Geothermal well pumping and filling dual-purpose well head device
By introducing a multi-layer filtration structure and vibration cleaning mechanism into the geothermal well pumping and injection wellhead device, the problem of impurity blockage in the existing device has been solved, achieving efficient water filtration and treatment and improving the operational reliability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI XINMEI CLEAN ENERGY CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-24
AI Technical Summary
Existing geothermal well pumping and injection wellhead devices lack effective water filtration and water quality treatment functions, which may cause impurities to clog the pipes and affect the operation of the device.
A dual-purpose wellhead device for geothermal well pumping and irrigation was designed, comprising first and second filter blocks inside the water supply pipeline. By utilizing the vibration of springs and vibrating balls, combined with the rotation of fan blades and transmission rods, multi-layer filtration and impurity removal are achieved to prevent clogging.
It effectively filters impurities, prevents pipe blockage, improves the reliability of the device and the water treatment capacity, and reduces the frequency of maintenance.
Smart Images

Figure CN224162758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of geothermal well pumping and irrigation dual-purpose wellhead device, specifically a geothermal well pumping and irrigation dual-purpose wellhead device. Background Technology
[0002] The geothermal well pumping and reinjection dual-purpose wellhead device combines a pumping device and a reinjection device. It can pump hot water from the formation to the surface, and simultaneously inject cooled water or treated water (circulated from the surface) back into the formation. This device reduces the number of wellhead disassemblies, thus saving construction costs and improving the utilization efficiency of geothermal energy. The working principle of the geothermal well pumping and reinjection dual-purpose wellhead device is based on the principles of heat conduction, heat circulation, and heat exchange in geothermal wells. The pumping device draws high-temperature hot water from the formation to the surface, where it is then used for heating, power generation, or other industrial applications. Simultaneously, cooled water (circulated from the surface) or treated water (circulated from the surface) is reinjected into the formation through the reinjection device to maintain the thermal balance of the formation and ensure the sustainable use of geothermal energy.
[0003] Most of the devices in front of us do not have a specific function of water filtration or water treatment. Some filtration devices may have a relatively simple function. When filtering impurities, some impurities may hinder the filtration device from cleaning, which may clog the pipes. Utility Model Content
[0004] The purpose of this utility model is to provide a geothermal wellhead device that can be used for both pumping and injection, which solves the problem that most devices do not have a specific function of water filtration or water treatment. Some filtration devices may have a relatively simple function, and some impurities may hinder the filtration device from cleaning, thereby clogging the pipes. This invention aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a geothermal wellhead device for both pumping and injection, wherein a water supply pipe with a transport function is fixedly installed on the top of the geothermal wellhead pipe, a valve with a switching function is fixedly installed on the water supply pipe, a first filter block with a filtering function is fixedly installed inside the water supply pipe, a spring with a vibration function is fixedly installed on the first filter block, a second filter block with a filtering function is also fixedly installed on the spring, a fixing rod with a fixing function is fixedly installed inside the water supply pipe, a fan blade with a rotating function is fixedly installed on one side of the fixing rod, a first transmission rod with a rotating function is fixedly installed on one side of the fixing rod, a first vibrating ball that generates vibration is fixedly installed on one side of the first transmission rod, and a return pipe with a transmission function is fixedly installed on one side of the geothermal wellhead pipe.
[0006] Optionally, a protective flange is fixedly installed on the geothermal wellhead pipeline, and a protective fixing nut is also fixedly installed on one side of the water supply pipeline.
[0007] Optionally, the flange plate fixed on the geothermal wellhead pipe and the flange plate fixed on one side of the water supply pipe are fixed together by fixing nuts that have a fixing function.
[0008] Optionally, the connection between the water supply pipe and the return pipe is also provided with a flange plate, which is connected and fixed by a fixing nut.
[0009] Optionally, a valve with a switching function is also fixedly installed on the return pipe. When the water flows back, the valve is opened and the water flows back along the return pipe. When there is no backflow, the valve remains closed.
[0010] Optionally, the water supply pipe has grooves on both sides inside to provide a vibration field, and the second filter block has guide protrusions on both sides. When the guide protrusions vibrate slightly, in order to prevent them from flipping over, the guide protrusions are connected to the grooves, and the grooves vibrate slightly.
[0011] Optionally, a second transmission rod is fixedly installed on one side of the fixed rod, a second vibrating ball is fixedly installed on one side of the second transmission rod, a sliding groove is fixedly installed on the water supply pipe, and a slider is slidably installed on the sliding groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: Water source passes through the first filter block inside the water supply pipe for the first layer of filtration. A spring is installed on the first filter block to undergo elastic deformation, thereby generating vibration. Then, the water source passes through the second filter block on the spring for secondary filtration. A fixing rod inside the water supply pipe is used for fixation. When the water flows over the fan blade on one side of the fixing rod, the fan blade rotates under the drive of the water flow. The first transmission rod drives the first vibrating ball to strike the second filter block, which is transmitted to the spring, causing the spring to undergo elastic deformation. This causes the second filter block to vibrate slightly inside the groove through the guide protrusions on both sides. This ensures that impurities in the water are not blocked during filtration. The filter port on the second filter block is shaken slightly when it vibrates, which removes impurities clogging the filter port. At the same time, the fixed rod drives the second transmission rod to rotate, causing the second vibrating ball to strike the slider. After being struck, the slider moves upward, allowing it to slide along a groove fixed to the water supply pipe. This allows construction workers to judge the water flow by the distance the slider moves along the groove. This effectively solves the problem that most devices do not have a specific water filtration or water quality treatment function, and some filtration devices may have relatively simple functions. When filtering impurities, some impurities may hinder the filtration device from cleaning, which may clog the pipe. Attached Figure Description
[0013] Figure 1This is a schematic diagram of the overall structure of a geothermal wellhead device for both pumping and injecting.
[0014] Figure 2 This is a schematic diagram of the water supply pipeline structure of a geothermal well pumping and irrigation dual-purpose wellhead device according to the present invention;
[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the water supply pipeline of a geothermal well pumping and injection dual-purpose wellhead device according to the present invention;
[0016] Figure 4 This is a side view of the water supply pipeline of a geothermal well pumping and irrigation dual-purpose wellhead device according to the present invention.
[0017] In the diagram: 1. Geothermal wellhead pipe; 2. Flange plate; 3. Fixing nut; 4. Water supply pipe; 5. Valve; 6. Return pipe; 7. First filter block; 8. Spring; 9. Second filter block; 10. Guide protrusion; 11. Groove; 12. Fixing rod; 13. Fan blade; 14. First transmission rod; 15. First vibrating ball; 16. Second transmission rod; 17. Second vibrating ball; 18. Slide groove; 19. Sliding block. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figures 1 to 3This utility model provides a dual-purpose geothermal wellhead device for both pumping and irrigation, including a geothermal wellhead pipe 1. A protective flange plate 2 is fixedly installed on the geothermal wellhead pipe 1 to securely connect the pipes and ensure a complete fluid transport system. The flange plate 2 fixed on the geothermal wellhead pipe 1 and the flange plate 2 fixedly installed on one side of the water supply pipe 4 are fixed together by a fixing nut 3. Similarly, a protective fixing nut 3 is fixedly installed on one side of the water supply pipe 4 to securely connect the flange plate 2. The water supply pipe 4, which has a transport function, is fixedly installed on top of the geothermal wellhead pipe 1 to transport the water pumped from underground. A valve 5 with a switching function is fixedly installed on the water supply pipe 4. When drawing groundwater, valve 5 is opened, allowing water to flow along the supply pipe 4. When not drawing groundwater, valve 5 remains closed. When drawing groundwater, valve 5 on the return pipe 6 is first closed to prevent water from diverting to the return pipe 6. Then, valve 5 on the supply pipe 4 is opened, and water passes through a first filter block 7 fixedly installed inside the supply pipe 4 for the first layer of filtration. A vibrating spring 8 is fixedly installed on the first filter block 7 to cause elastic deformation and vibration, allowing water to pass through. A second filter block 9 with a filtering function is also fixedly installed on the spring 8 for secondary filtration inside the supply pipe 4. Both sides are provided with grooves 11 to provide a vibration field, which are used to provide a place for the second filter block 9 to move when vibration occurs. Both sides of the second filter block 9 are provided with guide protrusions 10. When the guide protrusions 10 vibrate slightly, in order to prevent them from overturning, the guide protrusions 10 are connected to the grooves 11. When the grooves 11 vibrate slightly, a fixing rod 12 with a fixing function is fixedly installed inside the water supply pipe 4 for fixing. When the water flows through the fan blade 13 with a rotating function fixedly installed on one side of the fixing rod 12, the fan blade 13 rotates under the drive of the water flow. Then, through the first transmission rod 14 with a rotating function fixedly installed on one side of the fixing rod 12, the first vibration ball fixedly installed on the first transmission rod 14 generates vibration. 15. The second filter block 9 is tapped, causing a slight rotation, which is transmitted to the spring 8 fixed at the lower end. This causes the spring 8 to elastically deform, thereby causing the second filter block 9 to vibrate slightly inside the groove 11 via the guide protrusions 10 on both sides. During filtration, if impurities in the water block the filter port of the second filter block 9, the slight vibration can remove the impurities blocking the filter port. At the same time, the fixed rod 12 also drives the second transmission rod 16 fixedly installed on one side to rotate, causing the second vibrating ball 17 fixedly installed on one side of the second transmission rod 16 to tap the slider 19. After being tapped, the slider 19 moves upward, so that the slider 19 passes through the sliding groove 18 fixedly installed on the water supply pipe 4.Sliding on the chute 18 allows construction workers to judge the water flow rate by the distance the slider 19 moves within the chute 18. A return pipe 6, which serves a transmission function, is fixedly installed on one side of the geothermal wellhead pipe 1 to transmit water flow during return. A flange plate 2 is also provided at the connection between the supply pipe 4 and the return pipe 6, and they are connected and fixed by a fixing nut 3. A valve 5, which serves as a switch, is also fixedly installed on the return pipe 6. When returning, the valve 5 is opened, and water flows back along the return pipe 6. When there is no return, the valve 5 remains closed. When returning, the valve 5 installed on the supply pipe 4 is first closed to prevent backflow of water from the supply pipe 4, and then the valve 5 installed on the return pipe 6 is opened to allow the treated water to be reinjected into the formation through the return pipe 6.
[0020] Working principle: When the groundwater is pumped, the valve 5 installed on the return pipe 6 is closed first to prevent the pumped water from diverting to the return pipe 6. Then, the valve 5 on the supply pipe 4 is opened, and the water passes through the first filter block 7, which is fixedly installed inside the supply pipe 4, for the first layer of filtration. A spring 8 with a vibrating function is fixedly installed on the first filter block 7 to generate vibration due to elastic deformation, and then the water passes through. A second filter block 9 with a filtering function is also fixedly installed on the spring 8 for secondary filtration. A fixing rod 12 with a fixing function is fixedly installed inside the supply pipe 4 for fixation. When the water flows through the fan blade 13 with a rotating function fixedly installed on one side of the fixing rod 12, the fan blade 13 rotates under the drive of the water flow. Through the first transmission rod 14, the first vibrating ball 15 knocks on the second filter block 9, generating a slight rotation, which is transmitted to the spring 8, causing the spring 8 to vibrate. The elastic deformation causes the second filter block 9 to vibrate slightly inside the groove 11 via the guide protrusions 10 on both sides. This allows impurities in the water to remove them from the filter openings of the second filter block 9 during filtration. Simultaneously, the fixing rod 12 drives the second transmission rod 16 to rotate, causing the second vibrating ball 17 to strike the slider 19. After being struck, the slider 19 moves upward, sliding along the groove 18 fixed on the water supply pipe 4. The distance the slider 19 moves along the groove 18 allows construction personnel to judge the water flow rate. When recirculation is required, the valve 5 installed on the water supply pipe 4 is first closed to prevent backflow of water. Then, the valve 5 installed on the return pipe 6 is opened to allow the treated water to be recirculated back into the formation.
[0021] 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 geothermal wellhead device for both pumping and injecting, comprising a geothermal wellhead pipe (1), characterized in that, A water supply pipe (4) with a transport function is fixedly installed on the top of the geothermal wellhead pipe (1). A valve (5) with a switching function is fixedly installed on the water supply pipe (4). A first filter block (7) with a filtering function is fixedly installed inside the water supply pipe (4). A spring (8) with a vibration function is fixedly installed on the first filter block (7). A second filter block (9) with a filtering function is also fixedly installed on the spring (8). A fixing rod (12) with a fixing function is fixedly installed inside the water supply pipe (4). A fan blade (13) with a rotating function is fixedly installed on one side of the fixing rod (12). A first transmission rod (14) with a rotating function is fixedly installed on one side of the fixing rod (12). A first vibrating ball (15) that generates vibration is fixedly installed on one side of the first transmission rod (14). A return pipe (6) with a transmission function is fixedly installed on one side of the geothermal wellhead pipe (1).
2. The geothermal wellhead device for both pumping and injecting according to claim 1, characterized in that, A protective flange plate (2) is fixedly installed on the geothermal wellhead pipe (1), and a protective fixing nut (3) is also fixedly installed on one side of the water supply pipe (4).
3. The geothermal wellhead device for both pumping and injecting according to claim 1, characterized in that, The flange plate (2) fixed on the geothermal wellhead pipe (1) and the flange plate (2) fixed on one side of the water supply pipe (4) are fixed together by the fixing nut (3) which has a fixing function.
4. A geothermal wellhead device for both pumping and injecting according to claim 3, characterized in that, The connection between the water supply pipe (4) and the return pipe (6) is also provided with a flange plate (2), which is connected and fixed by a fixing nut (3).
5. A geothermal wellhead device for both pumping and injecting according to claim 1, characterized in that, A valve (5) with a switching function is also fixedly installed on the return pipe (6) to open the valve (5) when the water flows back along the return pipe (6). When there is no backflow, the valve (5) remains closed.
6. A geothermal wellhead device for both pumping and injecting according to claim 1, characterized in that, The water supply pipe (4) has grooves (11) on both sides inside to provide a vibration field. The second filter block (9) has guide protrusions (10) on both sides to guide. When the guide protrusions (10) vibrate slightly, in order to prevent overturning, the guide protrusions (10) are connected to the grooves (11) and the grooves (11) vibrate slightly.
7. A geothermal wellhead device for both pumping and injecting according to claim 1, characterized in that, A second transmission rod (16) is fixedly installed on one side of the fixed rod (12), and a second vibrating ball (17) is fixedly installed on one side of the second transmission rod (16). A sliding groove (18) is fixedly installed on the water supply pipe (4), and a slider (19) is slidably installed on the sliding groove (18).