Submersible cross-flow pump control line routing structure

Abstract

This invention proposes a control cable routing structure for a submersible axial flow pump. The submersible axial flow pump includes a water pump, a gearbox, a submersible motor, a main shaft, and a housing. The main shaft runs through the water pump, gearbox, and submersible motor from front to back, and includes a water pump outlet pipe and a motor outlet pipe. One end of the water pump outlet pipe is connected to the oil chamber of the water pump, and the other end is connected to the outside of the housing. The bearing temperature control lines of the water pump and gearbox are led out to the outside of the housing through the water pump outlet pipe. One end of the motor outlet pipe is connected to the submersible motor chamber, and the other end is connected to the outside of the housing. The motor control cable of the submersible motor is led out to the outside of the housing through the motor outlet pipe. This invention optimizes the cable routing of the water pump section, eliminates the cable sealing component between the water pump and the motor, and unifies the cable routing of the water pump and gearbox from the front water pump outlet pipe, while the motor cable is led out from the rear motor outlet pipe, avoiding the seepage of thin oil into the motor chamber due to the aging of the sealing component.

Description

Technical Field

[0001] This utility model relates to the field of submersible axial flow pump technology, and in particular to a control line routing structure for a submersible axial flow pump. Background Technology

[0002] Because submersible axial flow pumps are equipped with submersible motors, it is necessary to add some oil and water probes, bearing temperature measuring instruments, motor winding temperature measuring instruments, etc. The pump section and gearbox bearings are lubricated with thin oil, while the motor section bearings are lubricated with grease.

[0003] In the old design, the control lines for the pump section and the motor section were led out together from the motor section control cable outlet. Due to the different lubrication methods, an additional sealing component was needed in the control cable to prevent thin oil from entering the motor cavity. Over time, this method resulted in the rubber in the sealing component aging, allowing thin oil to enter the motor cavity, and it was also relatively difficult to install. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a submersible axial flow pump control line routing structure, optimizing the cable routing of the pump section. The cables for the pump and gearbox are uniformly routed through the pump outlet pipe, preventing aging of the rubber sealing components in the cables.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model proposes a control line routing structure for a submersible axial flow pump. The submersible axial flow pump includes a water pump, a gearbox, a submersible motor, a main shaft, and a housing. The water pump, gearbox, and submersible motor are arranged sequentially from front to back along the axis of the housing. The main shaft passes through the water pump, gearbox, and submersible motor in a front-to-back direction and includes a water pump outlet pipe and a motor outlet pipe. One end of the water pump outlet pipe is connected to the oil chamber of the water pump, and the other end is connected to the outside of the housing. The bearing temperature control lines of the water pump and gearbox are led out to the outside of the housing through the water pump outlet pipe. One end of the motor outlet pipe is connected to the chamber of the submersible motor, and the other end is connected to the outside of the housing. The motor control cable of the submersible motor is led out to the outside of the housing through the motor outlet pipe.

[0007] Furthermore, the front opening of the housing is provided with a water pump cable interface, which is tubular and protrudes from the outer edge of the housing. The other end of the water pump outlet pipe is connected to the water pump cable interface.

[0008] Furthermore, the water pump cable interface is provided with a water pump cable fixing seat inside, and the bearing temperature measurement control wire is wound around the water pump cable fixing seat for positioning.

[0009] Furthermore, the rear opening of the housing is provided with a motor cable interface, which is tubular and protrudes from the outer edge of the housing. The other end of the motor lead tube is connected to the motor cable interface.

[0010] Furthermore, it includes two motor lead-out pipes, which are located at the front and rear of the submersible motor chamber, respectively. The rear opening of the housing is provided with two motor cable interfaces, which are connected to the other ends of the two motor lead-out pipes.

[0011] Furthermore, the motor cable interface is provided with a motor cable fixing seat inside, and the motor control cable is wound around the motor cable fixing seat for positioning.

[0012] Compared with the prior art, the present invention has the following technical effects:

[0013] This utility model optimizes the cable routing of the water pump section, eliminating the cable sealing component between the water pump and the motor. The cables of the water pump and gearbox are uniformly led out from the front water pump outlet pipe, and the motor cable is led out from the rear motor outlet pipe. This avoids the leakage of thin oil into the motor cavity due to the aging of the rubber sealing component. In addition, the unit of this utility model is also very convenient to install and disassemble without causing damage to the cables. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of an embodiment of this application.

[0015] The parts in the attached diagram are labeled as follows:

[0016] 1. Water pump, 2. Gearbox, 3. Submersible motor, 4. Spindle, 5. Housing

[0017] 6. Water pump outlet pipe; 7. Motor outlet pipe; 8. Bearing temperature control wire.

[0018] 9. Motor control cable, 10. Water pump cable interface, 11. Water pump cable mounting bracket.

[0019] 12 Motor cable interface, 13 Motor cable mounting bracket. Detailed Implementation

[0020] 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.

[0021] This embodiment proposes a wiring structure for the control line of a submersible axial flow pump, such as... Figure 1 As shown, the submersible cross-flow pump includes a water pump 1, a gearbox 2, a submersible motor 3, a main shaft 4, and a housing 5. The water pump 1, gearbox 2, and submersible motor 3 are arranged sequentially from front to back along the axis of the housing 5. The main shaft 4 passes through the water pump 1, gearbox 2, and submersible motor 3 in the front-to-back direction.

[0022] The wiring structure specifically includes a water pump outlet pipe 6 and a motor outlet pipe 7. One end of the water pump outlet pipe 6 is connected to the oil chamber of the water pump 1, and the other end of the water pump outlet pipe 6 is connected to the outside of the housing 5. The bearing temperature measurement and control lines 8 of the water pump 1 and the gearbox 2 are led out to the outside of the housing 5 through the water pump outlet pipe 6.

[0023] One end of the motor lead tube 7 is connected to the chamber of the submersible motor 3, and the other end of the motor lead tube 7 is connected to the outside of the housing 5. The motor control cable 9 of the submersible motor 3 is led out to the outside of the housing 5 through the motor lead tube 7.

[0024] In this embodiment, the wiring structure includes two motor lead-out pipes 7, which are located at the front and rear of the submersible motor 3 chamber, respectively. The rear opening of the housing 5 is provided with two motor cable interfaces 12, which are connected to the other ends of the two motor lead-out pipes 7.

[0025] The front opening of the housing 5 is provided with a water pump cable interface 10. The water pump cable interface 10 is tubular and protrudes from the outer edge of the housing 5. The other end of the water pump outlet pipe 6 is connected to the water pump cable interface 10. The water pump cable interface 10 is provided with a water pump cable fixing seat 11. The bearing temperature control wire 8 is wound around the water pump cable fixing seat 11 for positioning.

[0026] The rear opening of the housing 5 is provided with a motor cable interface 12. The motor cable interface 12 is tubular and protrudes from the outer edge of the housing 5. The other end of the motor lead tube 7 is connected to the motor cable interface 12. The motor cable interface 12 is provided with a motor cable fixing seat 13. The motor control cable 9 is wound around the motor cable fixing seat 13 for positioning.

[0027] In this embodiment, the oil chamber of the water pump 1 and the chamber of the submersible motor 3 are made into two independent spaces. All bearing temperature control lines 8 in the oil chamber of the water pump 1 and the oil chamber of the gearbox 2 are led out from the motor lead pipe 7 to prevent the rubber in the cable sealing component (rubber seal) from aging, which would lead to thin oil entering the submersible motor 3 unit and damaging the motor.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A control line routing structure for a submersible axial flow pump, the submersible axial flow pump comprising a water pump (1), a gearbox (2), a submersible motor (3), a main shaft (4), and a housing (5), wherein the water pump (1), the gearbox (2), and the submersible motor (3) are arranged sequentially from front to back along the axis of the housing (5), and the main shaft (4) passes through the water pump (1), the gearbox (2), and the submersible motor (3) in the front-to-back direction, characterized in that, It includes a water pump outlet pipe (6) and a motor outlet pipe (7). One end of the water pump outlet pipe (6) is connected to the oil chamber of the water pump (1), and the other end of the water pump outlet pipe (6) is connected to the outside of the housing (5). The bearing temperature control line (8) of the water pump (1) and the gearbox (2) is led out to the outside of the housing (5) through the water pump outlet pipe (6). One end of the motor outlet pipe (7) is connected to the chamber of the submersible motor (3), and the other end of the motor outlet pipe (7) is connected to the outside of the housing (5). The motor control cable (9) of the submersible motor (3) is led out to the outside of the housing (5) through the motor outlet pipe (7).

2. The submersible cross-flow pump control line routing structure according to claim 1, wherein, The front opening of the housing (5) is provided with a water pump cable interface (10). The water pump cable interface (10) protrudes from the outer edge of the housing (5) in a tubular shape. The other end of the water pump outlet pipe (6) is connected to the water pump cable interface (10).

3. The submersible cross-flow pump control line routing structure of claim 2, wherein, The pump cable interface (10) is provided with a pump cable fixing seat (11) inside, and the bearing temperature control wire (8) is wound around the pump cable fixing seat (11) for positioning.

4. The submersible cross-flow pump control line routing structure of claim 1, wherein, The rear opening of the housing (5) is provided with a motor cable interface (12). The motor cable interface (12) protrudes from the outer edge of the housing (5) in a tubular shape. The other end of the motor lead-out pipe (7) is connected to the motor cable interface (12).

5. The submersible cross-flow pump control line routing structure of claim 4, wherein, It includes two motor lead-out pipes (7), which are located at the front and rear of the submersible motor (3) chamber, respectively. The rear opening of the housing (5) is provided with two motor cable interfaces (12), and the two motor cable interfaces (12) are connected to the other end of the two motor lead-out pipes (7).

6. The submersible cross-flow pump control line routing structure of claim 5, wherein, The motor cable interface (12) is provided with a motor cable fixing seat (13) inside, and the motor control cable (9) is wound around the motor cable fixing seat (13) for positioning.

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