Pump for geothermal exploration underground water pumping test

Abstract

The utility model relates to a pump for a geothermal exploration underground water pumping test, which comprises a deep-well pump motor, a deep-well pump direct-connection pipe fitting, a water feeding connecting shaft pipe fitting, a water outlet flange pipe fitting and a water feeding impeller pipe fitting, the deep-well pump direct-connection pipe fitting is connected to the bottom side of the deep-well pump motor, the water outlet flange pipe fitting is connected to one side of the deep-well pump direct-connection pipe fitting, and the water feeding connecting shaft pipe fitting is connected to the other side of the deep-well pump direct-connection pipe fitting. A plurality of groups of water feeding connecting shaft pipe fittings are arranged, the plurality of groups of water feeding connecting shaft pipe fittings are connected up and down, the water feeding connecting shaft pipe fitting on the uppermost side is arranged on the bottom side of the deep-well pump direct connecting pipe fitting, and the water feeding impeller pipe fitting is arranged on the bottom side of the water feeding connecting shaft pipe fitting on the lowermost side. The arrangement of the pump for the geothermal exploration test is optimized, the structural design of a traditional long-shaft deep-well pump is changed, the long-shaft deep-well pump is improved into the long-shaft deep-well pump which can be conveniently installed and connected, pollution and running resistance can be reduced by adopting the design of the shaft and water separation channel, and the long-shaft deep-well pump is suitable for being popularized and used.

Description

Technical Field

[0001] This utility model relates to the field of geothermal exploration, and in particular to a pump for groundwater pumping tests in geothermal exploration. Background Technology

[0002] Geothermal energy has a wide range of applications. It utilizes the thermal energy of underground hot water or steam, converting the thermal energy into mechanical energy through a heat exchanger, which then drives a generator to produce electricity. The underground hot water is then transported through pipelines to the building's heating system, where the heat is dissipated into the room through radiators or floor radiation to provide heating. However, geothermal resources require drilling exploration before use. Since geothermal resources are generally located more than 200 meters underground, deep well pumps are needed. Traditional long-shaft deep well pump designs, if the connecting rod is directly designed inside the water pipe, increase the operating resistance and energy consumption during operation. Therefore, using an isolated long-shaft deep well pump can reduce resistance. Applying lubricating oil to the connecting rod can reduce resistance and also reduce contamination of the geothermal water. For this purpose, a groundwater pumping test pump for geothermal exploration was designed. Utility Model Content

[0003] The purpose of this utility model is to provide a pump for groundwater pumping tests in geothermal exploration, so as to solve the above-mentioned technical problems. To achieve the above purpose, this utility model adopts the following technical solution:

[0004] A groundwater pumping test pump for geothermal exploration includes a deep well pump motor, a deep well pump direct connection pipe, a water inlet coupling pipe, a water outlet flange pipe, and a water inlet impeller pipe. The deep well pump direct connection pipe is connected to the bottom side of the deep well pump motor, and the water outlet flange pipe is connected to one side of the deep well pump direct connection pipe. Several sets of water inlet coupling pipes are arranged and connected vertically. The uppermost water inlet coupling pipe is located at the bottom side of the deep well pump direct connection pipe, and the water inlet impeller pipe is located at the bottom side of the lowermost water inlet coupling pipe.

[0005] Based on the above technical solution, flange plates are provided at the bottom end of the deep well pump direct connection pipe fitting, the upper and lower ends of the water supply coupling pipe fitting, and the upper end of the water supply impeller pipe fitting. The flange plate at the bottom end of the deep well pump direct connection pipe fitting is connected to the flange plate at the upper end of the water supply coupling pipe fitting. The flange plate at the upper end of the water supply impeller pipe fitting is connected to the flange plate at the lower end of the water supply coupling pipe fitting. A double-ring sealing rubber ring is provided between the flange plates. A connecting rod is provided inside the deep well pump direct connection pipe fitting, the water supply coupling pipe fitting, and the water supply impeller pipe fitting. The connecting rod is connected at its upper and lower ends.

[0006] Based on the above technical solution, the upper sections of the deep well pump direct connection pipe fitting, the water supply coupling pipe fitting, and the water supply impeller pipe fitting are all composed of an inner coupling sleeve and an outer pipe fitting. The inner coupling sleeve is set inside the outer pipe fitting, and an equidistant concentric support frame is provided between the inner coupling sleeve and the outer pipe fitting. Bearing grooves are opened at both ends of the inner coupling sleeve, and the inner coupling sleeve, the outer pipe fitting, and the equidistant concentric support frame are integrally fixed. A water passage cavity is provided between the inner coupling sleeve and the outer pipe fitting. Concentric bearings are fitted at both ends of the coupling rod, and the concentric bearings are embedded in the bearing grooves. The coupling rod passes through the inner coupling sleeve. A rubber ring embedding groove is opened on the flange plate, and the double-ring sealing rubber ring is embedded in the rubber ring embedding groove. The top of the water passage cavity is connected to the water outlet flange pipe fitting.

[0007] Based on the above technical solution, spline slots and spline protrusions are respectively provided on both sides of the connecting rod, and the spline protrusions are inserted into the spline slots.

[0008] Compared with the prior art, the present invention has the following advantages: The present invention optimizes the setting of the pump for geothermal exploration test, changes the structural design of the traditional long shaft deep water pump, and improves it into a long shaft deep well pump that can be easily installed and connected. Moreover, the design of the shaft and water separation channel can reduce pollution and reduce operating resistance, and is suitable for widespread use. Attached Figure Description

[0009] Figure 1 This is a general appearance diagram of the present utility model.

[0010] Figure 2 This is a detailed structural breakdown diagram of the present utility model.

[0011] Figure 3 This is a schematic diagram of the water supply coupling pipe fitting of this utility model.

[0012] Figure 4 This is a partial schematic diagram of the water supply coupling pipe fitting of this utility model.

[0013] Figure 5 This is a partial schematic diagram of the connecting rod of this utility model.

[0014] In the diagram: 1. Deep well pump motor; 2. Deep well pump direct connection pipe; 3. Water supply coupling pipe; 4. Water outlet flange pipe; 5. Water supply impeller pipe; 6. Flange plate; 7. Double-ring sealing rubber ring; 8. Coupling rod; 9. Inner coupling sleeve; 10. Outer pipe; 11. Equidistant concentric support frame; 12. Bearing groove; 13. Water passage cavity; 14. Concentric bearing; 15. Rubber ring embedding groove; 16. Spline slot; 17. Spline mating protrusion. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] A groundwater pumping test pump for geothermal exploration includes a deep well pump motor 1, a deep well pump direct connection pipe 2, a water inlet coupling pipe 3, a water outlet flange pipe 4, and a water inlet impeller pipe 5. The deep well pump direct connection pipe 2 is connected to the bottom side of the deep well pump motor 1, and the water outlet flange pipe 4 is connected to one side of the deep well pump direct connection pipe 2. Several sets of water inlet coupling pipe 3 are arranged, and the several sets of water inlet coupling pipe 3 are connected vertically. The uppermost water inlet coupling pipe 3 is located on the bottom side of the deep well pump direct connection pipe 2, and the water inlet impeller pipe 5 is located on the bottom side of the lowermost water inlet coupling pipe 3.

[0017] Flange plates 6 are provided at the bottom end of the deep well pump direct connection pipe 2, at both ends of the water supply shaft connection pipe 3, and at the top end of the water supply impeller pipe 5. The flange plate 6 at the bottom end of the deep well pump direct connection pipe 2 is connected to the flange plate 6 at the top end of the water supply shaft connection pipe 3. The flange plate 6 at the top end of the water supply impeller pipe 5 is connected to the flange plate 6 at the bottom end of the water supply shaft connection pipe 3. A double-ring sealing rubber ring 7 is provided between the flange plates 6. A connecting rod 8 is provided inside the deep well pump direct connection pipe 2, the water supply shaft connection pipe 3, and the water supply impeller pipe 5. The connecting rod 8 is connected at both ends.

[0018] The upper sections of the deep well pump direct connection pipe fitting 2, the water supply coupling pipe fitting 3, and the water supply impeller pipe fitting 5 are all composed of an inner coupling sleeve 9 and an outer pipe fitting 10. The inner coupling sleeve 9 is installed inside the outer pipe fitting, and an equidistant concentric support frame 11 is provided between the inner coupling sleeve 9 and the outer pipe fitting 10. Bearing grooves 12 are provided at both the upper and lower ends of the inner coupling sleeve 9, and the inner coupling sleeve 9, the outer pipe fitting 10, and the equidistant concentric support frame 11 are integrally fixed. A water passage cavity 13 is provided between the inner connecting sleeve 9 and the outer pipe fitting 10. Concentric bearings 14 are fitted at both ends of the connecting rod 8. The concentric bearings 14 are embedded in the bearing groove 12. The connecting rod 8 passes through the inner connecting sleeve 9. A rubber ring fixing groove 15 is opened on the flange plate 6. The double-ring sealing rubber ring 7 is fixed in the rubber ring fixing groove 15. The top of the water passage cavity 13 is connected to the water outlet flange fitting 4.

[0019] The two ends of the connecting rod 8 are respectively provided with a spline slot 16 and a spline protrusion 17, and the spline protrusion 17 is inserted into the spline slot 16.

[0020] The working principle of this utility model is as follows: The use of this structure is consistent with the traditional long-shaft deep well pump. The main advantage is that the connection of the connecting rod 8 is more convenient. The internal connecting rod 8 does not come into direct contact with the geothermal water, reducing the possibility of geothermal water contamination. During installation and use, the connecting rod 8 is first inserted into the inner connecting sleeve 9. Then, concentric bearings 14 are fitted onto the upper and lower ends of the connecting rod 8 and embedded in the bearing groove 12 to form a complete water supply connecting pipe fitting 3. During installation, it is only necessary to insert the corresponding spline mating protrusion 17 into the spline mating slot 16 and fix the outer flange plate 6. Compared with the traditional integrated shaft design, it is more convenient to install and operate.

[0021] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A pump for groundwater pumping tests in geothermal exploration, characterized in that, The system includes a deep well pump motor (1), a deep well pump direct connection pipe (2), a water supply coupling pipe (3), a water outlet flange pipe (4), and a water supply impeller pipe (5). The deep well pump direct connection pipe (2) is connected to the bottom side of the deep well pump motor (1), and the water outlet flange pipe (4) is connected to one side of the deep well pump direct connection pipe (2). The water supply coupling pipe (3) is provided in several sets, and the several sets of water supply coupling pipes (3) are connected vertically. The uppermost water supply coupling pipe (3) is located on the bottom side of the deep well pump direct connection pipe (2), and the water supply impeller pipe (5) is located on the bottom side of the lowermost water supply coupling pipe (3).

2. The pump for groundwater pumping tests in geothermal exploration according to claim 1, characterized in that, Flange plates (6) are provided at the bottom end of the deep well pump direct connection pipe fitting (2), at both ends of the water supply shaft fitting (3), and at the top end of the water supply impeller fitting (5). The flange plate (6) at the bottom end of the deep well pump direct connection pipe fitting (2) is connected to the flange plate (6) at the top end of the water supply shaft fitting (3). The flange plate (6) at the top end of the water supply impeller fitting (5) is connected to the flange plate (6) at the bottom end of the water supply shaft fitting (3). A double-ring sealing rubber ring (7) is provided between the flange plates (6). A connecting rod (8) is provided inside the deep well pump direct connection pipe fitting (2), the water supply shaft fitting (3), and the water supply impeller fitting (5). The connecting rod (8) is connected at both the top and bottom ends.

3. A groundwater pumping test pump for geothermal exploration according to claim 2, characterized in that, The upper sections of the deep well pump direct connection pipe fitting (2), the water supply coupling pipe fitting (3), and the water supply impeller pipe fitting (5) are all composed of an inner coupling sleeve (9) and an outer pipe fitting (10). The inner coupling sleeve (9) is set inside the outer pipe fitting, and an equidistant concentric support frame (11) is provided between the inner coupling sleeve (9) and the outer pipe fitting (10). Bearing grooves (12) are provided at the upper and lower ends of the inner coupling sleeve (9), and the inner coupling sleeve (9), the outer pipe fitting (10), and the equidistant concentric support frame (11) are integrally fixed. A water passage cavity (13) is provided between the inner connecting sleeve (9) and the outer pipe fitting (10). Concentric bearings (14) are fitted at both the upper and lower ends of the connecting rod (8). The concentric bearings (14) are embedded in the bearing groove (12). The connecting rod (8) passes through the inner connecting sleeve (9). A rubber ring fixing groove (15) is opened on the flange plate (6). The double-ring sealing rubber ring (7) is embedded in the rubber ring fixing groove (15). The top of the water passage cavity (13) is connected to the water outlet flange fitting (4).

4. A groundwater pumping test pump for geothermal exploration according to claim 3, characterized in that, The two ends of the connecting rod (8) are respectively provided with a spline slot (16) and a spline protrusion (17), and the spline protrusion (17) is inserted into the spline slot (16).

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