Energy-saving device for oilfield water injection pump

Abstract

This utility model relates to the field of oilfield development technology and provides an energy-saving device for an oilfield water injection pump, comprising: a pump body for oilfield water injection; a pump base disposed at the bottom of the pump body; a water guide cylinder disposed on the pump base, with an inlet pipe fixedly installed at the inlet of the water guide cylinder; a connecting pipe fixedly disposed on the outlet of the water guide cylinder, the outlet end of the connecting pipe being fixedly connected to the inlet end of the pump body; a water guide pipe fixedly connected to the outlet end of the inlet pipe; a mesh cylinder sleeved on the water guide pipe; and a limiting mechanism disposed on the water guide cylinder for limiting the mesh cylinder. The energy-saving device for an oilfield water injection pump provided by this solution pre-filters the water source entering the pump body through the mesh cylinder, reducing impurities entering the pump body, reducing wear on pump body components, and thus reducing energy consumption increases caused by equipment wear and deviations from operating conditions, achieving energy-saving effects.

Description

Technical Field

[0001] This utility model belongs to the field of oilfield development technology, and in particular relates to an energy-saving device for oilfield water injection pumps. Background Technology

[0002] In the process of oilfield development, water injection is a key technical means to maintain reservoir pressure and improve crude oil recovery. As the core equipment of the water injection system, the operating efficiency and stability of the water injection pump directly affect the production efficiency and energy consumption level of the oilfield.

[0003] Currently, a prominent problem faced by oilfield water injection pumps during long-term operation is the increased equipment wear and energy consumption caused by impurities in the water source. The water entering the injection pump typically comes from oilfield produced wastewater, groundwater, or treated reclaimed water. These water sources often contain various impurities such as silt, rust, suspended solids, and microbial slime. When unfiltered water enters the pump body, impurities gradually accumulate on the surfaces of critical components such as the impeller, pump casing, and seals. This not only exacerbates wear and corrosion of these components and causes blockage of the internal flow channels, but also increases the operating resistance of the injection pump, deviating it from its optimal operating conditions. Utility Model Content

[0004] This utility model provides an energy-saving device for oilfield water injection pumps, aiming to solve the problem of increased energy consumption caused by impurities in the water source during water injection.

[0005] This utility model is implemented as follows: an energy-saving device for an oilfield water injection pump includes: a pump body for oilfield water injection; a pump base disposed at the bottom of the pump body; a water guide cylinder disposed on the pump base, with an inlet pipe fixedly installed at the inlet of the water guide cylinder; a connecting pipe fixedly disposed on the outlet of the water guide cylinder, the outlet end of the connecting pipe being fixedly connected to the inlet end of the pump body; a water guide pipe fixedly connected to the outlet end of the inlet pipe; a mesh cylinder sleeved on the water guide pipe; and a limiting mechanism disposed on the water guide cylinder for limiting the mesh cylinder.

[0006] Preferably, the limiting mechanism includes: a sealing ring fixed inside the water guide tube and allowing the mesh tube to be inserted; a sealing cap disposed on the water guide tube; and a pad fixed to the bottom of the sealing cap, the bottom of the pad being in contact with the mesh tube.

[0007] Preferably, hooks are fixed on both sides of the sealing cap, and buckles are provided on both sides of the water guide tube, the buckles being able to engage with the hooks.

[0008] Preferably, a handle is fixedly installed on the top of the sealing cover, and the handle is provided with a gripping groove.

[0009] Preferably, the bottom of the water guide tube is fixedly connected to a sewage pipe, and a valve is installed on the sewage pipe.

[0010] Preferably, a water outlet pipe is fixedly installed at the water outlet end of the pump body for connecting to the water injection pipe.

[0011] Preferably, the pump base has symmetrically provided mounting holes.

[0012] Compared with related technologies, the energy-saving device for oilfield water injection pumps provided by this utility model has the following beneficial effects:

[0013] The water entering the pump body is pre-filtered through a screen, reducing impurities from entering the pump body, reducing wear on pump components, and thus reducing energy consumption caused by equipment wear and deviations from operating conditions, achieving energy-saving effects; a limit mechanism limits the screen; a handle facilitates the removal and installation of the sealing cover and makes screen replacement convenient; a drain pipe and valve can promptly discharge impurities accumulated in the water guide tube; the outlet pipe ensures a stable connection between the pump body and the water injection pipe; and mounting holes on the pump base ensure the overall installation of the device is stable. Attached Figure Description

[0014] Figure 1 A schematic diagram of the main structure of an energy-saving device for an oilfield water injection pump provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0016] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0017] Figure 4 This is a schematic diagram of the sealing ring in this utility model.

[0018] Reference numerals in the attached drawings: 1. Pump body; 2. Pump base; 3. Water guide tube; 4. Inlet pipe; 5. Water guide pipe; 6. Mesh tube; 7. Connecting pipe; 8. Sealing ring; 9. Sealing cover; 10. Gasket; 11. Hook; 12. Buckle; 13. Handle; 14. Sewage pipe; 15. Valve; 16. Outlet pipe. Detailed Implementation

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] This utility model embodiment provides an energy-saving device for oilfield water injection pumps, such as... Figure 1-4As shown, the oilfield water injection pump energy-saving device includes: a pump body 1 for oilfield water injection; a pump base 2 located at the bottom of the pump body 1; a water guide cylinder 3 located on the pump base 2, with a water inlet pipe 4 fixedly installed at the inlet of the water guide cylinder 3; a connecting pipe 7 fixedly located at the outlet of the water guide cylinder 3, with the outlet end of the connecting pipe 7 fixedly connected to the inlet end of the pump body 1; a water guide pipe 5 fixedly connected to the outlet end of the water inlet pipe 4; a mesh cylinder 6 sleeved on the water guide pipe 5; and a limiting mechanism located on the water guide cylinder 3 for limiting the mesh cylinder 6.

[0021] In this embodiment, when using the oilfield water injection pump energy-saving device, the water source enters the water guide pipe 5 through the water inlet pipe 4. The water guide pipe 5 guides the water into the mesh cylinder 6, which filters impurities such as mud and rust in the water. The filtered water enters the water guide cylinder 3 and is then transported to the pump body 1 through the connecting pipe 7. The pump body 1 completes the oilfield water injection operation. During this period, the limiting mechanism limits the mesh cylinder 6 to ensure its stable operation.

[0022] The device pre-filters the water entering the pump body 1 through the screen cylinder 6, which can reduce the amount of impurities in the water entering the pump body 1, thereby reducing the deposition of impurities on the surfaces of components such as impeller, pump casing, and seals, reducing the degree of wear and corrosion of components, helping to maintain the smooth flow of the internal flow channels of the pump body 1, and reducing operating resistance.

[0023] Meanwhile, the limiting mechanism can ensure the stable operation of the screen cylinder 6, reduce the impact of screen cylinder 6 position deviation on the filtration effect, reduce the need for frequent shutdowns to clean or replace filter components, help reduce maintenance costs and labor intensity, and improve the stability and continuity of water injection pump operation to a certain extent, thereby reducing energy consumption caused by equipment wear and deviation of operating conditions.

[0024] In a further preferred embodiment of the present invention, the limiting mechanism includes: a sealing ring 8 fixed inside the water guide cylinder 3 and into which the mesh cylinder 6 can be inserted; a sealing cover 9 disposed on the water guide cylinder 3; and a pad 10 fixed to the bottom of the sealing cover 9, the bottom of the pad 10 being in contact with the mesh cylinder 6.

[0025] In this embodiment, when installing the mesh cylinder 6, insert it with the opening of the mesh cylinder 6 facing the sealing ring 8, so that the mesh cylinder 6 and the sealing ring 8 fit together; then cover it with the sealing cover 9, with the pad 10 at the bottom of the sealing cover 9 contacting the mesh cylinder 6, and then fix the sealing cover 9 to complete the installation. When replacing, first remove the sealing cover 9, take out the old mesh cylinder 6, and then install the new mesh cylinder 6 in the same way as described above.

[0026] During installation, the mesh cylinder 6 and the sealing ring 8 work together to enhance the seal and reduce the amount of unfiltered water entering the water guide cylinder 3. The sealing cover 9 and the gasket 10 provide stable positioning for the mesh cylinder 6, preventing it from shifting under the impact of water flow. The replacement process is simple, allowing for timely replacement of the mesh cylinder 6 to ensure filtration efficiency.

[0027] In a further preferred embodiment of this utility model, hooks 11 are fixed on both sides of the sealing cover 9, and buckles 12 are provided on both sides of the water guide tube 3, and the buckles 12 can be engaged with the hooks 11.

[0028] In this embodiment, when installing the sealing cap 9, the sealing cap 9 is placed on the water guide tube 3, with the hooks 11 on both sides of the sealing cap 9 aligned with the buckles 12 on both sides of the water guide tube 3. The hooks 11 are pressed down to engage with the buckles 12, thus fixing the sealing cap 9. To disassemble, the hooks 11 are moved to separate from the buckles 12, and the sealing cap 9 can be removed.

[0029] The engagement of the hook 11 and the buckle 12 enhances the connection stability between the sealing cover 9 and the water guide tube 3, reducing the possibility of the sealing cover 9 becoming loose during equipment operation. At the same time, this engagement method can further improve the sealing effect of the sealing cover 9 and reduce water leakage.

[0030] In a further preferred embodiment of the present invention, a handle 13 is fixedly installed on the top of the sealing cover 9, and the handle 13 is provided with a gripping groove.

[0031] In this embodiment, when installing the sealing cover 9, hold the gripping groove on the handle 13 and place the sealing cover 9 with the opening on the water guide tube 3, and fix it with the hook 11 and the buckle 12; when disassembling, hold the gripping groove in the same way, apply force to turn the hook 11 to separate it from the buckle 12, and then remove the sealing cover 9 through the handle 13.

[0032] The handle 13 provides a force point for the installation and removal of the sealing cover 9, making it easier to apply force during operation; the grip groove fits the hand grip posture, reducing hand slippage and making the grip more stable.

[0033] In a further preferred embodiment of the present invention, the bottom of the water guide tube 3 is fixedly connected to a sewage pipe 14, and a valve 15 is provided on the sewage pipe 14.

[0034] In this embodiment, when a certain amount of impurities accumulate in the water guide tube 3, the valve 15 on the drain pipe 14 can be opened to allow the impurities in the water guide tube 3 to be discharged along with some water through the drain pipe 14; after the impurities are discharged, the valve 15 is closed to stop the sewage discharge operation.

[0035] The drain pipe 14 provides a discharge channel for impurities in the water guide tube 3, and the valve 15 can control the opening and closing of the drain process, so as to facilitate timely cleaning according to the accumulation of impurities.

[0036] In a further preferred embodiment of the present invention, a water outlet pipe 16 is fixedly installed at the water outlet end of the pump body 1 for connecting to the water injection pipe.

[0037] In this embodiment, the water outlet pipe 16 is fixedly installed at the water outlet end of the pump body 1, and then the water injection pipe is connected to the water outlet pipe 16. During the water injection operation, the water pressurized by the pump body 1 is transported to the water injection pipe through the water outlet pipe 16, and then injected into the oil reservoir through the water injection pipe.

[0038] The outlet pipe 16 serves as a connecting component between the pump body 1 and the water injection pipe, providing a stable delivery channel for the treated water, allowing the water output from the pump body 1 to smoothly enter the water injection pipe.

[0039] In a further preferred embodiment of this utility model, mounting holes are symmetrically provided on the pump base 2.

[0040] In this embodiment, when installing the pump base 2, the fasteners are passed through the symmetrically opened mounting holes on the pump base 2, aligned with the corresponding holes on the mounting base, and fixed to ensure that the pump base 2 is stably installed in the designated position.

[0041] In summary, compared with related technologies, the pre-filtration of water entering the pump body 1 by the screen cylinder 6 reduces the amount of impurities entering the pump body 1, reduces wear on pump body 1 components, and thus reduces energy consumption caused by equipment wear and deviation from operating conditions, achieving energy-saving effects; the limiting mechanism limits the screen cylinder 6; the handle 13 facilitates the disassembly and assembly of the sealing cover 9, making it convenient to replace the screen cylinder 6; the drain pipe 14 and valve 15 can promptly discharge impurities accumulated in the water guide cylinder 3; the outlet pipe 16 achieves a stable connection between the pump body 1 and the water injection pipe; and the mounting holes on the pump base 2 ensure the overall installation of the device is stable.

[0042] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0043] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An energy-saving device for oilfield water injection pumps, characterized in that, include: Pump body used for water injection in oil fields; The pump seat is located at the bottom of the pump body; A water guide cylinder is installed on the pump base, and a water inlet pipe is fixedly installed at the water inlet of the water guide cylinder; A connecting pipe is fixed to the outlet of the water guide tube, and the outlet end of the connecting pipe is fixedly connected to the inlet end of the pump body; A water guide pipe is fixedly connected to the water outlet end of the water inlet pipe; A mesh tube fitted onto the water guide pipe; A limiting mechanism is provided on the water guide tube to limit the position of the net tube.

2. The energy-saving device for oilfield water injection pumps as described in claim 1, characterized in that, The limiting mechanism includes: A sealing ring fixed inside the water guide tube and into which the mesh tube can be inserted; A sealing cap is installed on the water guide tube; A pad is fixed to the bottom of the sealing cover, and the bottom of the pad is in contact with the mesh cylinder.

3. The energy-saving device for oilfield water injection pumps as described in claim 2, characterized in that, The sealing cap is fixed with hooks on both sides, and the water guide tube is provided with buckles on both sides, which can be engaged with the hooks.

4. The energy-saving device for oilfield water injection pumps as described in claim 2, characterized in that, A handle is fixedly installed on the top of the sealing cover, and the handle is provided with a gripping groove.

5. The energy-saving device for oilfield water injection pumps as described in claim 1, characterized in that, The bottom of the water guide tube is fixedly connected to a sewage pipe, and a valve is installed on the sewage pipe.

6. The energy-saving device for oilfield water injection pumps as described in claim 1, characterized in that, The pump body has a water outlet pipe fixedly installed at the water outlet end for connecting to the water injection pipe.

7. The energy-saving device for oilfield water injection pumps as described in claim 1, characterized in that, The pump base has symmetrical mounting holes.

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