Multi-working-condition energy-saving double-suction pump

Abstract

This invention provides a multi-condition energy-saving dual-suction pump, relating to the field of dual-suction pump technology. It includes: a fixed base, a motor mount fixed to the top of the fixed base, a drive motor fixedly mounted on the motor mount, an output shaft mounted on the drive motor, a coupling fixed to one end of the output shaft, and a protective cover mounted on the outer side of the coupling. This invention allows for adjustment and fine-tuning of the installation height of the fixed base and drive motor, solving the problem that existing equipment placed directly on the ground cannot have its operating height adjusted. A threaded column drives a limiting seat to move to both ends. When the limiting seat moves, its bottom contacts an arc-shaped plate. As the limiting seat moves, it pushes one end of the arc-shaped seat and a support seat downwards. The downward tilting of the support seat completes the fine-tuning of the installation height of the fixed base.

Description

Technical Field

[0001] This disclosure relates to the field of dual-suction pump technology, and in particular to a multi-condition energy-saving dual-suction pump. Background Technology

[0002] Double-suction pumps, as an important type of centrifugal pump, are widely used in engineering due to their high head and large flow rate. The impeller of this type of pump is actually composed of two back-to-back impellers. The water flowing from the impellers converges into a volute. A double-suction pump is equivalent to two single-suction impellers of the same diameter working simultaneously, doubling the flow rate for the same impeller outer diameter. The pump casing is horizontally split, facilitating inspection and maintenance. Furthermore, the inlet and outlet of a double-suction pump are in the same direction and perpendicular to the pump shaft, which is beneficial for the arrangement and installation of the pump and inlet / outlet pipes. However, current double-suction pumps lack the ability to adjust height for various operating conditions.

[0003] According to a patent document with publication number CN223019038U, a shock-absorbing double-suction pump includes a double-suction pump body and a shock-absorbing housing. The top of the shock-absorbing housing is not closed and is slidably engaged with a double-suction pump mounting platform. Each of the four corner walls inside the shock-absorbing housing has a first mounting groove, and each first mounting groove houses a transfer shock-absorbing component. Inside the shock-absorbing housing, below the double-suction pump mounting platform, a mounting plate is also provided. A working shock-absorbing component is mounted on the top of the mounting plate. A lifting mechanism is installed at the bottom of the shock-absorbing housing to lift and support the working shock-absorbing component on the bottom surface of the double-suction pump mounting platform. In use, this design allows the double-suction pump mounting platform to slide freely up and down within the shock-absorbing housing to adapt to different shock absorption modes.

[0004] The combination of working vibration damping components and transfer vibration damping components effectively absorbs and reduces the vibration generated by the dual-suction pump during working and transfer, thereby extending the service life of the pump body and improving the overall working efficiency. Regarding the above technical solution, although it achieves vibration reduction during use, it cannot adjust the overall height of the pump body after installation or adjust the position of the pump body support points, which is inconvenient during use. Summary of the Invention

[0005] This disclosure aims to at least partially address one of the technical problems in the related art.

[0006] Therefore, the purpose of this disclosure is to provide a multi-condition energy-saving dual-suction pump.

[0007] To achieve the above objectives, this disclosure provides a multi-condition energy-saving dual-suction pump, comprising: a fixed base, a motor base fixed to the top of the fixed base, a drive motor fixedly mounted on the motor base, an output shaft mounted on the drive motor, a coupling fixed to one end of the output shaft, a protective cover mounted on the outer side of the coupling, and one end of the protective cover fixedly mounted on the top of the fixed base; and an adjusting assembly, comprising a threaded column, a rotating seat fixed to one end of the threaded column, the rotating seat rotatably mounted on one end of the fixed base, a limiting seat movably mounted on the threaded column, a threaded hole on the limiting seat, the threaded column rotatably mounted inside the threaded hole, and a slot on the bottom of the fixed base, with a support seat movably mounted inside the slot.

[0008] Optionally, a rotating column is fixed to one end of each support base, a torsion spring is fixed to the side wall of the rotating column, and an installation hole is opened on the inner wall of the slot. The rotating column is rotatably installed inside the installation hole by the torsion spring, and one end of the torsion spring is fixedly installed on the inner wall of the installation hole.

[0009] Optionally, an arc-shaped plate is fixed to the top of the support base, the top of the arc-shaped plate is movably installed at the bottom of the limiting seat, an arc-shaped block is welded to the side of the limiting seat, a cavity is opened at the bottom of the fixed base, and the limiting seat is movably installed inside the cavity.

[0010] Optionally, a turbine seat is fixed to the top of the fixed base, and a drain pipe and a water inlet pipe are symmetrically fixed to both sides of the turbine seat, and a lifting lug is fixedly installed on the top of the turbine seat.

[0011] Optionally, a support pipe is fixed to both the inlet pipe and the outlet pipe, a control valve is fixedly installed on the support pipe, and a fixing bolt is rotatably installed on the top of one end of the support pipe.

[0012] Optionally, a fixing tube is movably installed inside the supporting tube, and a ring seat is fixed on the outer wall of the fixing tube. The outer wall of the ring seat is slidably installed on the inner wall of the supporting tube. A protrusion is fixed on the top of the fixing tube, and one end of the fixing bolt is movably installed on the protrusion.

[0013] Optionally, one end of each of the fixed tubes is fixed with a ring tube, a connecting tube is fixedly installed between the ring tubes, a fixing groove is opened on the side of the fixing seat, and a fixing hole is opened on the inner wall of the fixing groove.

[0014] Optionally, a partition plate is fixed inside the ring pipe, and the partition plate is symmetrically fixedly installed on the inner wall of the ring pipe. A one-way valve is fixedly installed on the partition plate.

[0015] Optionally, a turbulence column is fixed on the inner wall of the annular tube, the turbulence column has an opening, and the turbulence column is fixedly installed on the inner wall of the annular tube in a staggered manner.

[0016] Optionally, a groove is formed on the inner wall of the cavity, and a ball bearing is rotatably mounted on the arc-shaped block. The arc-shaped block is movably mounted inside the groove via the ball bearing.

[0017] The technical solution provided in this disclosure may include the following beneficial effects: This invention has the function of cooling and heat dissipating the drive motor while extracting water, solving the problem that the drive motor cannot be cooled quickly by a single airflow. When water is extracted through the water inlet pipe, part of the water enters the interior of the support pipe and the fixed pipe through the water inlet pipe. The water inside the fixed pipe enters the ring pipe, which is distributed on the outer wall of the drive motor. The low temperature of the water flow completes the adsorption and cooling of the high temperature on the surface of the drive motor. This invention provides protection for the drive motor, solving the problem that the drive motor is easily damaged by external collisions when exposed to the air. The fixed tube and the ring tube are distributed on the side of the drive motor, and the ring tube and the connecting tube achieve shielding and protection of the drive motor. In addition, the ring tube cools the drive motor. In a horizontal state, the drive motor is installed inside the support tube through the fixed tube. The fixed tube and the support tube cooperate to achieve the positioning and installation of the drive motor. After the drive motor is disassembled, it is easy to install later. This invention allows for adjustment and fine-tuning of the installation height of the fixed base and drive motor, solving the problem that existing equipment placed directly on the ground cannot have its operating height adjusted. A threaded column drives a limiting seat to move to both ends. During this movement, the bottom of the limiting seat contacts an arc-shaped plate. As the limiting seat moves, it pushes one end of the arc-shaped plate and support seat downwards. This downward tilting of the support seat completes the fine-tuning of the fixed base's installation height. Furthermore, after the limiting seat is moved to both ends of the fixed base, the support seat rotates via a rotating column. This rotation causes the limiting seat to move from the outside inwards, supporting the top of the support seat. The tilting of the limiting seat allows for adjustment and use under different working conditions.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of a device in a multi-condition energy-saving double-suction pump according to an embodiment of the present disclosure; Figure 2 This is a schematic diagram of the structure of a multi-condition energy-saving double-suction pump after the inlet pipe is removed, according to an embodiment of this disclosure; Figure 3 This is a schematic diagram of the structure of the support component in a multi-condition energy-saving double-suction pump according to an embodiment of the present disclosure; Figure 4 This is a magnified structural diagram of point A in a multi-condition energy-saving double-suction pump according to an embodiment of this disclosure; Figure 5 This is a schematic diagram of the structure of the ring pipe in a multi-condition energy-saving double-suction pump according to an embodiment of the present disclosure; Figure 6 This is an enlarged structural schematic diagram of point B in a multi-condition energy-saving double-suction pump proposed in one embodiment of this disclosure; Figure 7 This is a schematic diagram of the structure of a multi-condition energy-saving double-suction pump with one end of the support seat tilted according to an embodiment of the present disclosure; Figure 8 This is a schematic diagram of the side cross-section of the support base in a multi-condition energy-saving double-suction pump according to an embodiment of this disclosure.

[0020] As shown in the figure: 1. Fixed seat; 2. Motor seat; 3. Drive motor; 4. Ring pipe; 5. Connecting pipe; 6. Fixed pipe; 7. Support pipe; 8. Control valve; 9. Coupling; 10. Protective cover; 11. Turbine seat; 12. Drain pipe; 13. Inlet pipe; 14. Fixed groove; 15. Fixed hole; 16. Rotating seat; 17. Threaded column; 18. Support seat; 19. Arc plate; 20. Rotating column; 21. Torsion spring; 22. Limit seat; 23. Arc block; 24. Ball bearing; 25. Fixing bolt; 26. Ring seat; 27. Protrusion; 28. Divider plate; 29. ​​Check valve; 30. Baffle column; 31. Opening. Detailed Implementation

[0021] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0022] like Figures 1 to 8As shown, a multi-condition energy-saving dual-suction pump includes: a fixed base 1, a motor base 2 fixed to the top of the fixed base 1, a drive motor 3 fixedly mounted on the motor base 2, an output shaft mounted on the drive motor 3, a coupling 9 fixed to one end of the output shaft, a protective cover 10 mounted on the outer side of the coupling 9, and one end of the protective cover 10 fixedly mounted on the top of the fixed base 1; an adjusting assembly, the adjusting assembly including a threaded column 17, a rotating seat 16 fixed to one end of the threaded column 17, the rotating seat 16 rotatably mounted on one end of the fixed base 1, a limiting seat 22 movably mounted on the threaded column 17, a threaded hole on the limiting seat 22, the threaded column 17 rotatably mounted inside the threaded hole, and a slot on the bottom of the fixed base 1, the slot being movably mounted inside the slot. The device is equipped with a support seat 18. It can be understood that by rotating the rotating seat 16, the rotating seat 16 rotates at one end of the fixed seat 1. The rotating seat 16 does not separate from the fixed seat 1 when it rotates. The rotating seat 16 drives the threaded column 17 to rotate. When the threaded column 17 rotates, it drives the two limiting seats 22 to move from the inside to the outside. When the limiting seats 22 move outward, the arc plate 19 slides inside the slide groove. When the arc plate 19 slides, the ball bearing 24 reduces the friction. The arc plate 19 limits the limiting seats 22. The limiting seats 22 move horizontally in the limited state. The limiting seats 22 move horizontally and contact the top of the arc plate 19. They move from the lower part of the arc plate 19 to the higher part. When the limiting seats 22 move, they push the arc plate 19 and one end of the support seat 18 to tilt downward. When one end of the support seat 18 tilts, it will push the fixed seat 1 to move upward a short distance.

[0023] Please see Figure 1 , Figure 3 and Figure 7Each support base 18 has a rotating column 20 fixed to one end. A torsion spring 21 is fixed to the side wall of the rotating column 20. An installation hole is formed on the inner wall of the slot. The rotating column 20 is rotatably mounted inside the installation hole via the torsion spring 21. One end of the torsion spring 21 is fixedly mounted on the inner wall of the installation hole. An arc-shaped plate 19 is fixed to the top of the support base 18. The top of the arc-shaped plate 19 is movably mounted on the bottom of the limiting seat 22. An arc-shaped block 23 is welded to the side of the limiting seat 22. A cavity is formed at the bottom of the fixed base 1. The limiting seat 22 is movably mounted inside the cavity. A turbine seat 11 is fixed to the top of the fixed base 1. A drain pipe 12 and a water inlet pipe 13 are symmetrically fixed to both sides of the turbine seat 11. A lifting lug is fixedly installed on the top of the turbine seat 11. After the installation height of the fixed base 1 is adjusted, it is convenient to connect the water inlet pipe 13 and the drain pipe 12. If the water inlet pipe 13 and the drain pipe 12 are connected to an external water pipe, if the angle above the ground is too large, gravity and torsional force can easily cause damage to the water pipe connection. When a large distance adjustment is required for the fixed base 1, before placing the fixed base 1 on the ground, the lifting equipment and the turbine seat 11 should be connected. During hoisting, the fixed seat 1 is lifted off the ground. The threaded column 17 drives the limiting seat 22 to move to both ends of the internal cavity of the fixed seat 1. The top of the support seat 18 loses its limiting force. The support seat 18 is rotated by the rotating column 20. After the rotating column 20 rotates, one end of the arc plate 19 contacts the ground. Then, the threaded column 17 pushes the limiting seat 22 to move to one side of the support seat 18 in the tilted state. The limiting seat 22 moves from the outside to the inside. The limiting seat 22 stops at the top of the support seat 18 and adjusts the tilt angle of the support seat 18. The adjustment of the tilt angle of the support seat 18 is used to readjust the fixed seat 1.

[0024] Please see Figure 1 , Figure 5 and Figure 7Both the inlet pipe 13 and the outlet pipe 12 are fixed with support pipes 7. A control valve 8 is fixedly installed on the support pipe 7. A fixing bolt 25 is rotatably installed on the top of one end of the support pipe 7. A fixing pipe 6 is movably installed inside the support pipe 7. A ring seat 26 is fixed on the outer wall of the fixing pipe 6. The outer wall of the ring seat 26 is slidably installed on the inner wall of the support pipe 7. A protrusion 27 is fixed on the top of the fixing pipe 6. One end of the fixing bolt 25 is movably installed on the protrusion 27. One end of each fixed tube 6 is fixed with a ring tube 4, and a connecting tube 5 is fixedly installed between the ring tubes 4. A fixing groove 14 is opened on the side of the fixed seat 1, and a fixing hole 15 is opened on the inner wall of the fixing groove 14. When it is necessary to make a fine adjustment to the height of the fixed seat 1, the rotating seat 16 is rotated. The rotating seat 16 rotates at one end of the fixed seat 1. The rotating seat 16 does not separate from the fixed seat 1 when it rotates. The rotating seat 16 drives the threaded column 17 to rotate. When the threaded column 17 rotates, it drives the two limiting seats 22 to move from the inside to the outside. When the limiting seats 22 move outward, the arc plate 19 slides inside the slide groove. When the arc plate 19 slides, the ball bearing 24 reduces the friction.

[0025] Please see Figure 4 , Figure 5 and Figure 6 The annular pipe 4 has a partition plate 28 fixed inside. The partition plate 28 is symmetrically fixed on the inner wall of the annular pipe 4, and a one-way valve 29 is fixedly installed on the partition plate 28. A turbulence column 30 is fixed on the inner wall of the annular pipe 4. The turbulence column 30 has an opening 31 and is fixedly installed on the inner wall of the annular pipe 4 in a staggered manner. A sliding groove is formed on the inner wall of the cavity. A ball bearing 24 is rotatably installed on the arc-shaped block 23. The arc-shaped block 23 is movably installed inside the sliding groove through the ball bearing 24. The annular pipe 4 is divided into two parts by the partition plate 28. After water enters, it fills half of the space of the annular pipe 4. The water in the half of the space of the annular pipe 4 is filled into the annular pipe 4 at each position through the connecting pipe 5. After water enters the annular pipe 4, the temperature decreases. At the same time, the temperature of the annular pipe 4 decreases and absorbs the high temperature generated on the drive motor 3. When the water moves to the last position of the annular pipe 4, the one-way valve 29 on the partition plate 28 will allow the water to enter. The water enters the other half of the space of the ring pipe 4, and the connecting pipe 5 in the other half of the space serves as a guide. Finally, the water inside the ring pipe 4 enters the support pipe 7 through the fixed pipe 6. The water inside the support pipe 7 is discharged outward through the drain pipe 12, thereby realizing water circulation to cool down the drive motor 3. In addition, the ring pipe 4 and the connecting pipe 5 provide shielding and protection for the drive motor 3. The drive motor 3 is installed in the support pipe 7 in a horizontal state through the fixed pipe 6. The fixed pipe 6 and the support pipe 7 cooperate to achieve the positioning and installation of the drive motor 3. After the drive motor 3 is disassembled, it is easy to install later.

[0026] Working principle: In use, the fixed seat 1 is placed in the operating position. When a fine adjustment of the height of the fixed seat 1 is required, the rotating seat 16 is rotated. The rotating seat 16 rotates at one end of the fixed seat 1 without separating from the fixed seat 1. The rotating seat 16 drives the threaded column 17 to rotate. When the threaded column 17 rotates, it drives the two limiting seats 22 to move from the inside to the outside. When the limiting seats 22 move outward, the arc plate 19 slides inside the slide groove. When the arc plate 19 slides, the rolling balls 24 reduce the friction. The arc plate 19 limits the limiting seats 22. The limiting seats 22 move horizontally in the limited state. The limiting seats 22 move horizontally and contact the top of the arc plate 19. They move from the lower part of the arc plate 19 to the upper part. When the device moves, it pushes the arc plate 19 and one end of the support seat 18 downwards. When one end of the support seat 18 tilts, it pushes the fixed seat 1 to move upwards a short distance. After the fixed seat 1 moves upwards, its installation height is adjusted. After the installation height of the fixed seat 1 is adjusted, it is convenient to connect the water inlet pipe 13 and the drain pipe 12. If the water inlet pipe 13 and the drain pipe 12 are connected to the external water pipe, if the angle above the ground is too large, gravity and torsional force can easily cause damage to the water pipe connection. When a large distance adjustment of the fixed seat 1 is required, before the fixed seat 1 is placed on the ground, the hoisting equipment and the turbine seat 11 are hoisted. When the fixed seat 1 is off the ground, the threaded column 17 drives the limit seat 22 to move to both ends of the internal cavity of the fixed seat 1. The top of the support seat 18 is lost. The limiting force is removed, and the support seat 18 is rotated by the rotating column 20. After the rotating column 20 rotates, one end of the arc plate 19 contacts the ground. Then, the threaded column 17 pushes the limiting seat 22 to move to one side of the support seat 18 in the tilted state. The limiting seat 22 moves from the outside to the inside and stops at the top of the support seat 18 to adjust the tilt angle of the support seat 18. The adjustment of the tilt angle of the support seat 18 is used to readjust the fixed seat 1. When pumping water, the drive motor 3 drives the coupling 9 and the turbine inside the turbine seat 11 to rotate. The rotation of the turbine drives water into the interior of the water inlet pipe 13. The water inside the water inlet pipe 13 enters the interior of the fixed pipe 6 through the support pipe 7. The water inside the fixed pipe 6 enters the interior of the ring pipe 4. The ring pipe 4 passes through the partition plate 28. The system is divided into two parts. After water enters, it fills half of the space in the ring pipe 4. The water in the first half of the ring pipe 4 is then gradually filled into the ring pipes 4 at various positions through the connecting pipe 5. The water entering the ring pipe 4 lowers its temperature, and at the same time, it absorbs the high temperature generated on the drive motor 3. When the water moves to the last position of the ring pipe 4, the one-way valve 29 on the partition plate 28 will allow the water to enter the other half of the space in the ring pipe 4. The connecting pipe 5 in the other half of the space guides the flow. Finally, the water in the ring pipe 4 enters the support pipe 7 through the fixed pipe 6. The water in the support pipe 7 is discharged outward through the drain pipe 12, thus achieving water circulation to cool the drive motor 3. In addition, the ring pipe 4 and the connecting pipe 5 provide shielding and protection for the drive motor 3.In a horizontal position, the drive motor 3 is installed inside the support pipe 7 via the fixing pipe 6. The fixing pipe 6 and the support pipe 7 work together to position the drive motor 3, facilitating later disassembly and reinstallation.

[0027] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0028] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0029] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A multi-condition energy-saving double suction pump, characterized in that, include: A fixed base (1) is provided, and a motor base (2) is fixed on the top of the fixed base (1). A drive motor (3) is fixedly installed on the motor base (2). An output shaft is installed on the drive motor (3). A coupling (9) is fixed at one end of the output shaft. A protective cover (10) is installed on the outside of the coupling (9). One end of the protective cover (10) is fixedly installed on the top of the fixed base (1). An adjustment assembly includes a threaded column (17), one end of which is fixed with a rotating seat (16), which is rotatably mounted on one end of a fixed seat (1). A limiting seat (22) is movably mounted on the threaded column (17), and a threaded hole is opened on the limiting seat (22). The threaded column (17) is rotatably mounted inside the threaded hole. A slot is opened at the bottom of the fixed seat (1), and a support seat (18) is movably mounted inside the slot.

2. The multi-condition energy-saving double suction pump of claim 1, wherein, One end of each support base (18) is fixed with a rotating column (20), and a torsion spring (21) is fixed on the side wall of the rotating column (20). An installation hole is opened on the inner wall of the slot. The rotating column (20) is rotatably installed inside the installation hole by the torsion spring (21), and one end of the torsion spring (21) is fixedly installed on the inner wall of the installation hole.

3. The multi-condition energy-saving double-suction pump according to claim 2, characterized in that, The top of the support base (18) is fixed with an arc plate (19), the top of the arc plate (19) is movably installed at the bottom of the limiting seat (22), the side of the limiting seat (22) is welded with an arc block (23), the bottom of the fixed base (1) has a cavity, and the limiting seat (22) is movably installed inside the cavity.

4. The multi-condition energy-saving double-suction pump according to claim 3, characterized in that, The top of the fixed base (1) is fixed with a turbine base (11), and the two sides of the turbine base (11) are respectively fixed with a drain pipe (12) and a water inlet pipe (13). The top of the turbine base (11) is fixed with a hoisting lug.

5. The multi-condition energy-saving double-suction pump according to claim 4, characterized in that, Both the inlet pipe (13) and the outlet pipe (12) are fixed with support pipes (7), and control valves (8) are fixedly installed on the support pipes (7). A fixing bolt (25) is rotatably installed on the top of one end of the support pipe (7).

6. The multi-condition energy-saving double-suction pump according to claim 5, characterized in that, The support tube (7) is movably installed with a fixed tube (6), and a ring seat (26) is fixed on the outer wall of the fixed tube (6). The outer wall of the ring seat (26) is slidably installed on the inner wall of the support tube (7). A protrusion (27) is fixed on the top of the fixed tube (6), and one end of the fixing bolt (25) is movably installed on the protrusion (27).

7. The multi-condition energy-saving double-suction pump according to claim 6, characterized in that, One end of each of the fixed tubes (6) is fixed with a ring tube (4), and a connecting tube (5) is fixedly installed between the ring tubes (4). A fixing groove (14) is opened on the side of the fixed seat (1), and a fixing hole (15) is opened on the inner wall of the fixing groove (14).

8. The multi-condition energy-saving double-suction pump according to claim 7, characterized in that, A partition plate (28) is fixed inside the ring pipe (4). The partition plate (28) is symmetrically fixed on the inner wall of the ring pipe (4). A one-way valve (29) is fixedly installed on the partition plate (28).

9. A multi-condition energy-saving double-suction pump according to claim 8, characterized in that, A turbulence column (30) is fixed on the inner wall of the ring pipe (4). The turbulence column (30) has an opening (31). The turbulence column (30) is fixedly installed on the inner wall of the ring pipe (4) in a staggered manner.

10. A multi-condition energy-saving double-suction pump according to claim 3, characterized in that, The cavity has a groove on its inner wall, and a ball bearing (24) is rotatably mounted on the arc-shaped block (23). The arc-shaped block (23) is movably mounted inside the groove via the ball bearing (24).

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