Automatic flow adjusting and pressure stabilizing device for submersible pump

Abstract

The utility model discloses an automatic flow adjusting and pressure stabilizing device for a submersible pump, and relates to the technical field of submersible pumps. The automatic flow adjusting and pressure stabilizing device for the submersible pump comprises the ground, the submersible pump and a control box. The supporting assembly comprises a fixing cylinder, two connecting rings are fixedly connected to the surface of the fixing cylinder, and fixing rods are fixedly connected to the opposite faces of the two connecting rings. The surface of the fixed rod is fixedly connected with a first fixed cylinder, the surface of the fixed rod is slidably connected with a movable cylinder, the surface of the movable cylinder is fixedly connected with a limiting ring, the surface of the fixed rod is sleeved with a reset spring, the surface of the movable cylinder is hinged to a connecting rod, the surface of the connecting rod is hinged to a connecting frame, and the surface of the connecting frame is rotatably connected with two rolling wheels. And through the arrangement of the connecting rod, the connecting frame and the rolling wheels, the outer side of the submersible pump can be conveniently supported and protected, the friction resistance is reduced, the risk of equipment damage caused by collision is reduced, and the operation safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of submersible pump technology, and in particular to a device for automatic flow regulation and pressure stabilization of submersible pumps. Background Technology

[0002] A submersible pump is a device used to draw water from deep wells. The entire device needs to be placed in the water of the deep well, then connected to a power source. A special impeller draws water into the pump, which then delivers the water into a pipeline. Submersible pumps play a significant role in domestic water delivery, industrial cooling, and ship ballast adjustment. Chinese utility model patent, authorization announcement number "CN117780657A", discloses an adjustable flow submersible pump, including a power motor, a frequency converter electrically connected to the power motor, a water pump mounted on the power motor, a filter screen fixed between the power motor and the water pump, support mechanisms fixed to both the power motor and the water pump, and a locking mechanism between the hose and the outlet pipe.

[0003] The above-mentioned technical solution provides support and buffering for the power motor and the water pump, thereby reducing the possibility of damage to the well wall caused by water flow impact and collision, and reducing the possibility of the water pump detaching from the hose due to water flow impact, thus improving the service life of the submersible pump. However, the above-mentioned technical solution still has certain defects. When the submersible pump is pulled upward, if impurities on the inner wall of the well enter the support spring between the submersible pump and the support rod, these accumulated impurities may hinder the normal rotation or movement of the support spring and the support rod, thereby causing the support rod to be stuck. Therefore, this utility model proposes a new solution. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an automatic flow regulation and pressure stabilization device for submersible pumps. This device can solve the problem that when the submersible pump is pulled upwards, if impurities from the inner wall of the well enter the support spring between the submersible pump and the support rod, these accumulated impurities may hinder the normal rotation or movement of the support spring and the support rod, thereby causing the support rod to be stuck.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic flow regulation and pressure stabilization device for submersible pumps, comprising a ground, a submersible pump, and a control box;

[0006] A support assembly is provided on the surface of the submersible pump. The support assembly includes a fixed cylinder, which is fixedly connected to the surface of the submersible pump. Two connecting rings are fixedly connected to the surface of the fixed cylinder, and a fixed rod is fixedly connected to the opposite face of the two connecting rings.

[0007] A first fixed cylinder is fixedly connected to the surface of the fixed rod, a movable cylinder is slidably connected to the surface of the fixed rod, a limit ring is fixedly connected to the surface of the movable cylinder, the limit ring is slidably connected to the inner wall of the first fixed cylinder, and a return spring is sleeved on the surface of the fixed rod, with the two ends of the return spring fixedly connected to the limit ring and the first fixed cylinder respectively.

[0008] A connecting rod is hinged to the surface of the movable cylinder, a connecting frame is hinged to the surface of the connecting rod, and two rollers are rotatably connected to the surface of the connecting frame;

[0009] The first fixed cylinder, the movable cylinder, the limiting ring, the return spring, and the connecting rod are all arranged in two sets, symmetrically on the upper and lower sides of the fixed rod.

[0010] Preferably, the fixed rod, the first fixed cylinder, the movable cylinder, the limiting ring, the return spring, the connecting rod, the connecting frame, and the roller are all arranged in four sets symmetrically on the outside of the fixed cylinder.

[0011] Preferably, the number of support components is two sets, symmetrically arranged on the surface of the submersible pump.

[0012] Preferably, a first buffer tank is installed at the upper end of the ground, a first connecting pipe is fixedly connected to the left side of the first buffer tank, a second buffer tank is installed at the upper end of the ground, and the end of the first connecting pipe away from the first buffer tank is connected to the submersible pump.

[0013] A second connecting pipe is fixedly connected between the first buffer tank and the second buffer tank, and a third connecting pipe is fixedly connected to the right side of the second buffer tank.

[0014] A fourth connecting pipe is fixedly connected between the second and third connecting pipes.

[0015] Preferably, an electromagnetic flow meter is installed inside the third connecting pipe.

[0016] Preferably, the control box is equipped with a PLC controller, a controller for controlling the submersible pump, and a controller for controlling the electromagnetic flowmeter.

[0017] Preferably, a pressure gauge, a pressure relief valve, and a pressure switch are installed at the upper end of the first buffer tank;

[0018] The upper part of the second buffer tank is also equipped with a pressure gauge, a pressure relief valve, and a pressure switch.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This submersible pump automatic flow regulation and pressure stabilization device, through the arrangement of connecting rods, connecting frames, and rollers, facilitates the support and protection of the external side of the submersible pump, reduces frictional resistance, and improves operating efficiency. Four sets of components, including the fixing rod and the first fixing cylinder, are symmetrically arranged on the outside of the fixing cylinder, and two sets of support components are symmetrically installed on the surface of the submersible pump. This ensures that the submersible pump maintains balance and stability during well entry and exit, prevents it from tilting or shaking inside the well, reduces the risk of equipment damage due to collisions, and improves operational safety. At the same time, since the return spring is located inside the first fixing cylinder, it can prevent impurities from damaging the return spring, improving the stability of the device during use. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the automatic flow regulation and pressure stabilization device for submersible pumps according to this utility model.

[0023] Figure 2 This is a schematic diagram of the first buffer tank of this utility model;

[0024] Figure 3 This is a schematic diagram of the second buffer tank of this utility model;

[0025] Figure 4 This is a schematic diagram of the submersible pump of this utility model;

[0026] Figure 5 This is a schematic diagram of the fixing cylinder of this utility model;

[0027] Figure 6 This utility model Figure 5 Enlarged diagram of point A in the middle.

[0028] Reference numerals: 1. Ground; 2. First buffer tank; 3. Second buffer tank; 4. Control box; 5. Submersible pump; 6. First connecting pipe; 7. Second connecting pipe; 8. Third connecting pipe; 9. Fourth connecting pipe; 10. Electromagnetic flowmeter; 11. Pressure gauge; 12. Pressure relief valve; 13. Pressure switch; 14. Fixed cylinder; 15. Connecting ring; 16. Fixed rod; 17. First fixed cylinder; 18. Movable cylinder; 19. Limiting ring; 20. Return spring; 21. Connecting rod; 22. Connecting frame; 23. Roller. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Please see Figure 1-6 This utility model provides a technical solution: an automatic flow regulation and pressure stabilization device for a submersible pump, including a ground 1, a submersible pump 5, and a control box 4, and a support assembly. The support assembly is disposed on the surface of the submersible pump 5 and includes a fixed cylinder 14, which is fixedly connected to the surface of the submersible pump 5. Two connecting rings 15 are fixedly connected to the surface of the fixed cylinder 14, and a fixed rod 16 is fixedly connected to the opposite surfaces of the two connecting rings 15. A first fixed cylinder 17 is fixedly connected to the surface of the fixed rod 16, and a movable cylinder 18 is slidably connected to the surface of the fixed rod 16. A limiting ring 19 is fixedly connected to the inner wall of the first fixed cylinder 17. A return spring 20 is sleeved on the surface of the fixed rod 16. The two ends of the return spring 20 are fixedly connected to the limiting ring 19 and the first fixed cylinder 17, respectively. A connecting rod 21 is hinged to the surface of the movable cylinder 18. A connecting frame 22 is hinged to the surface of the connecting rod 21. Two rollers 23 are rotatably connected to the surface of the connecting frame 22. The first fixed cylinder 17, the movable cylinder 18, the limiting ring 19, the return spring 20, and the connecting rod 21 are all symmetrically arranged in two sets on the upper and lower sides of the fixed rod 16.

[0034] The number of fixed rod 16, first fixed cylinder 17, movable cylinder 18, limit ring 19, return spring 20, connecting rod 21, connecting frame 22 and roller 23 are all symmetrically arranged on the outside of fixed cylinder 14 in four sets.

[0035] There are two sets of support components, symmetrically arranged on the surface of the submersible pump 5.

[0036] A first buffer tank 2 is installed at the upper end of ground 1. A first connecting pipe 6 is fixedly connected to the left side of the first buffer tank 2. A second buffer tank 3 is installed at the upper end of ground 1. The end of the first connecting pipe 6 away from the first buffer tank 2 is connected to the submersible pump 5. A second connecting pipe 7 is fixedly connected between the first buffer tank 2 and the second buffer tank 3. A third connecting pipe 8 is fixedly connected to the right side of the second buffer tank 3. A fourth connecting pipe 9 is fixedly connected between the second connecting pipe 7 and the third connecting pipe 8.

[0037] An electromagnetic flowmeter 10 is installed inside the third connecting pipe 8.

[0038] The control box 4 contains a PLC controller, a controller for controlling the submersible pump 5, and a controller for controlling the electromagnetic flowmeter 10.

[0039] The upper end of the first buffer tank 2 is equipped with a pressure gauge 11, a pressure relief valve 12, and a pressure switch 13. The upper end of the second buffer tank 3 is also equipped with a pressure gauge 11, a pressure relief valve 12, and a pressure switch 13.

[0040] When using this device, the support assembly plays a key role in the operation of placing the submersible pump 5 into or taking it out of the well. The connecting frame 22 and roller 23 in the support assembly are supported on the inner wall of the well. The setting of roller 23 greatly reduces the friction between roller 23 and the inner wall of the well. When lowering or taking out the submersible pump 5, roller 23 can roll on the well wall, making the whole operation process smoother.

[0041] If the well wall obstructs the process, the connecting rod 21 hinged to the surface of the movable cylinder 18 will play a role. When obstructed, the connecting rod 21 will drive the movable cylinder 18 to slide on the surface of the fixed rod 16, thereby compressing the return spring 20. The compression of the return spring 20 can absorb and buffer the resistance from the well wall, preventing the submersible pump 5 from being damaged by excessive impact force. At the same time, it can also reduce the operating resistance during the lowering or retrieval process, making it easier for the submersible pump 5 to enter and exit the well.

[0042] Since the number of fixed rod 16, first fixed cylinder 17, movable cylinder 18, limit ring 19, return spring 20, connecting rod 21, connecting frame 22 and roller 23 are all symmetrically arranged in four sets on the outside of fixed cylinder 14, and the number of support components is symmetrically arranged in two sets on the surface of submersible pump 5, this symmetrical structural design can provide uniform support and buffer for submersible pump 5, ensuring that it maintains balance and stability during well entry and exit.

[0043] When the submersible pump 5 is working, the pumped water flows into the first buffer tank 2 through the first connecting pipe 6. At this time, since the fourth connecting pipe 9 is connected to the second connecting pipe 7 and the third connecting pipe 8, the water flowing from the first buffer tank 2 to the second buffer tank 3 through the second connecting pipe 7 is diverted, so that the first buffer tank 2, the second buffer tank 3, the first connecting pipe 6, the second connecting pipe 7, the third connecting pipe 8 and the fourth connecting pipe 9 form a combined connection, connecting the two buffer tanks to the submersible pump outlet pipeline in a combination of parallel and series connection. This connection method helps to more flexibly adjust the water flow path and pressure distribution, and further stabilize the water flow.

[0044] The electromagnetic flow meter 10 installed inside the third connecting pipe 8 monitors the flow rate data of the water in real time and transmits this data to the controller in the control box 4 that controls the electromagnetic flow meter 10; the PLC controller in the control box 4 analyzes and processes this flow rate data.

[0045] When the monitored flow rate deviates from the preset standard flow rate value, the PLC controller will send a command to the controller controlling the submersible pump 5. The controller controlling the submersible pump 5 will adjust the operating parameters of the submersible pump 5 according to the received command, change the motor speed of the submersible pump 5, thereby adjusting the pumping flow rate of the submersible pump 5, so that the flow rate gradually approaches and stabilizes at the preset value.

[0046] The first buffer tank 2 and the second buffer tank 3 play a role in buffering and stabilizing pressure in the whole system; they can alleviate the water flow impact and pressure fluctuations generated when the submersible pump 5 pumps water, making the water flow more stable.

[0047] The pressure gauge 11 installed on the upper end of the first buffer tank 2 and the second buffer tank 3 will display the pressure value inside the tank in real time; the pressure switch 13 is preset with upper and lower pressure limits; when the pressure inside the tank exceeds the upper limit, the pressure switch 13 will trigger a signal, and after receiving the signal, the control box 4 will control the pressure relief valve 12 to open, release the excess pressure, and prevent excessive pressure from damaging the pipelines and equipment.

[0048] Conversely, when the pressure inside the tank is lower than the lower limit, the pressure switch 13 will also trigger a signal, and the control box 4 will control the submersible pump 5 to increase the pumping power or adjust other relevant parameters as needed to increase the pressure inside the system and restore it to a stable pressure range.

[0049] Furthermore, the connection rod 21, the connection frame 22, and the roller 23 facilitate the support and protection of the outside of the submersible pump 5, reduce frictional resistance, and improve operating efficiency. The four sets of components, such as the fixed rod 16 and the first fixed cylinder 17, are symmetrically arranged on the outside of the fixed cylinder 14, and the two sets of support components are symmetrically installed on the surface of the submersible pump 5. This ensures that the submersible pump 5 maintains balance and stability during the entry and exit of the well, prevents it from tilting or shaking inside the well, reduces the risk of equipment damage due to collision, and improves operational safety. At the same time, since the return spring 20 is located inside the first fixed cylinder 17, it can prevent impurities from damaging the return spring 20, thus improving the stability of the device during use.

[0050] Structural Description: Submersible Pump 5: As the core equipment, it is used to extract well water and transport it to the subsequent pipeline;

[0051] Fixed cylinder 14: Fixed to the surface of submersible pump 5, providing a mounting base for other support components;

[0052] Connecting ring 15: Connects the fixing cylinder 14 and the fixing rod 16 to ensure that the support structure is stably connected to the submersible pump 5;

[0053] Fixed rod 16: It supports components such as the first fixed cylinder 17 and the movable cylinder 18, and is an important connecting component of the support assembly;

[0054] First fixed cylinder 17: provides an installation position for return spring 20 and cooperates with limit ring 19 to limit the range of motion of movable cylinder 18;

[0055] Movable cylinder 18: can slide on fixed rod 16, transmits force through connecting rod 21, and works with return spring 20 to provide a buffering effect;

[0056] Limiting ring 19: It is slidably connected to the inner wall of the first fixed cylinder 17 to prevent the movable cylinder 18 from sliding excessively and to ensure the normal operation of the support assembly;

[0057] Return spring 20: Installed inside the first fixed cylinder 17, it buffers the impact force generated by the well wall, protects the submersible pump 5, and prevents impurities from damaging itself, thus improving the stability of the device.

[0058] Connecting rod 21: connects movable cylinder 18 and connecting frame 22, transmits force, and when it encounters an obstacle, it drives movable cylinder 18 to compress return spring 20;

[0059] Connecting frame 22: supports roller 23 and transmits the supporting force of roller 23 to submersible pump 5, providing support and protection for the outside of submersible pump 5;

[0060] Roller 23: Supported on the inner wall of the well, it rolls to reduce friction with the well wall, assisting the submersible pump 5 in entering and exiting the well and improving operating efficiency;

[0061] First buffer tank 2 and second buffer tank 3: to alleviate the water flow impact and pressure fluctuation when the submersible pump 5 is pumping water, stabilize the water flow, and further adjust the water flow path and pressure distribution through combined connection;

[0062] First connecting pipe 6: connects submersible pump 5 and first buffer tank 2, and transports water pumped by submersible pump;

[0063] Second connecting pipe 7: connects the first buffer tank 2 and the second buffer tank 3, allowing water to flow between the two buffer tanks;

[0064] Third connecting pipe 8: connects to the second buffer tank 3, outputs water flow, and has an electromagnetic flow meter 10 installed inside for monitoring flow rate;

[0065] Fourth connecting pipe 9: Connects the second connecting pipe 7 and the third connecting pipe 8 to achieve water flow diversion and optimize the combination connection of the buffer tank;

[0066] Electromagnetic flow meter 10: Installed inside the third connecting pipe 8, it monitors water flow data in real time;

[0067] Control box 4: The internal PLC controller, the controller that controls the submersible pump 5, and the controller that controls the electromagnetic flowmeter 10 work together to adjust the operating parameters of the submersible pump 5 according to the flow data, so as to realize automatic flow regulation.

[0068] Pressure gauge 11: Installed on the upper part of the first and second buffer tanks to display the pressure value inside the tank in real time;

[0069] Pressure relief valve 12: When the pressure exceeds the upper limit, the control box 4 controls it to open, release excess pressure, and protect pipelines and equipment;

[0070] Pressure switch 13: presets upper and lower pressure limits, triggers signals to control the adjustment of operating parameters of pressure relief valve 12 and submersible pump 5, and stabilizes system pressure.

[0071] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A submersible pump flow rate automatic adjustment and pressure stabilization device, characterized in that: Includes ground (1), submersible pump (5) and control box (4); A support assembly is provided on the surface of the submersible pump (5). The support assembly includes a fixed cylinder (14), which is fixedly connected to the surface of the submersible pump (5). Two connecting rings (15) are fixedly connected to the surface of the fixed cylinder (14), and a fixed rod (16) is fixedly connected to the opposite face of the two connecting rings (15). A first fixed cylinder (17) is fixedly connected to the surface of the fixed rod (16), a movable cylinder (18) is slidably connected to the surface of the fixed rod (16), a limit ring (19) is fixedly connected to the surface of the movable cylinder (18), the limit ring (19) is slidably connected to the inner wall of the first fixed cylinder (17), and a return spring (20) is sleeved on the surface of the fixed rod (16). The two ends of the return spring (20) are fixedly connected to the limit ring (19) and the first fixed cylinder (17) respectively. The surface of the movable cylinder (18) is hinged with a connecting rod (21), the surface of the connecting rod (21) is hinged with a connecting frame (22), and the surface of the connecting frame (22) is rotatably connected with two rollers (23). The number of the first fixed cylinder (17), the movable cylinder (18), the limiting ring (19), the return spring (20), and the connecting rod (21) are all arranged in two sets, symmetrically on the upper and lower sides of the fixed rod (16).

2. The submersible pump flow rate automatic adjustment and pressure stabilization device according to claim 1, characterized in that: The number of the fixed rod (16), the first fixed cylinder (17), the movable cylinder (18), the limiting ring (19), the return spring (20), the connecting rod (21), the connecting frame (22), and the roller (23) are all four sets symmetrically arranged on the outside of the fixed cylinder (14).

3. The automatic flow rate adjustment and pressure stabilization device for submersible pumps according to claim 1, characterized in that: The number of support components is two sets, which are symmetrically arranged on the surface of the submersible pump (5).

4. The automatic flow rate adjustment and pressure stabilization device for submersible pumps according to claim 1, characterized in that: A first buffer tank (2) is installed at the upper end of the ground (1). A first connecting pipe (6) is fixedly connected to the left side of the first buffer tank (2). A second buffer tank (3) is installed at the upper end of the ground (1). The end of the first connecting pipe (6) away from the first buffer tank (2) is connected to the submersible pump (5). A second connecting pipe (7) is fixedly connected between the first buffer tank (2) and the second buffer tank (3), and a third connecting pipe (8) is fixedly connected to the right side of the second buffer tank (3). A fourth connecting pipe (9) is fixedly connected between the second connecting pipe (7) and the third connecting pipe (8).

5. The submersible pump flow rate automatic adjustment and pressure stabilization device according to claim 4, characterized in that: An electromagnetic flowmeter (10) is installed inside the third connecting pipe (8).

6. The submersible pump flow rate automatic adjustment and pressure stabilization device according to claim 1, characterized in that: The control box (4) is equipped with a PLC controller, a controller for controlling the submersible pump (5), and a controller for controlling the electromagnetic flowmeter (10).

7. The submersible pump flow rate automatic adjustment and pressure stabilization device according to claim 4, characterized in that: The upper end of the first buffer tank (2) is equipped with a pressure gauge (11), a pressure relief valve (12) and a pressure switch (13). The upper end of the second buffer tank (3) is also equipped with a pressure gauge (11), a pressure relief valve (12) and a pressure switch (13).

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