Drainage pump

Abstract

The invention discloses a drainage pump, and relates to the related field of fluid machinery, and the drainage pump comprises a drainage pump main body which is provided with an outer channel and an inner channel, the outer channel is used for high-pressure power fluid transmission, and the inner channel is used for conveying a mixture; the oil pipe joint is arranged at the input end of the outer channel, and a small oil pipe joint is arranged in the oil pipe joint; the driving stirring device is arranged at the other end of the drainage pump main body, the power liquid enters and drives the driving stirring device to rotate, and retentate is disturbed to form a mixture; the ejector is arranged at the output end of the driving and stirring device, after the power liquid output by the driving and stirring device is transmitted to the ejector, high-speed jet flow is formed, a negative pressure area is formed by the high-speed jet flow, a mixture is sucked into the ejector and flows to a mixed liquid outlet formed by the small oil pipe joint through an inner channel, and the mixture is lifted and output. The technical problem that in the prior art, a drainage pump is prone to being blocked, and consequently the working efficiency is reduced is solved, and the technical effects of reducing the blocking risk and improving the working efficiency are achieved.

Description

Technical Field

[0001] The present application relates to the field of fluid machinery, and in particular to a drainage pump. Background Art

[0002] In the field of industrial production and fluid handling, it is often necessary to mix, transport and lift different substances, especially in industries such as oil extraction, chemical production and sewage treatment. As an important fluid conveying equipment, the drainage pump has a suction effect. It can use the drainage principle to drive the low-flow liquid with a high-flow rate to accelerate the flow of the liquid. However, the fluid characteristics and transportation requirements in different application scenarios are different. The adaptability of traditional drainage pumps is limited. When the conveyed fluid contains a large amount of solid particles or impurities, the drainage pump is prone to blockage, resulting in damage to the pump body or reduced working efficiency.

[0003] In the current related technologies, the drainage pump has the technical problem of being easily blocked, which leads to reduced work efficiency. Summary of the invention

[0004] The present application provides a drainage pump to solve the technical problem in the prior art that the drainage pump is prone to clogging, resulting in reduced work efficiency, thereby achieving the technical effect of reducing the risk of clogging and improving work efficiency.

[0005] In order to solve the above problems, the present application provides a drainage pump, comprising: a drainage pump body, wherein an outer channel and an inner channel are arranged in the drainage pump body, wherein the outer channel is used for transmitting high-pressure power fluid, and the inner channel is used for conveying a mixture; an oil pipe joint, wherein the oil pipe joint is arranged at one end of the drainage pump body, and the oil pipe joint is arranged at the input end of the outer channel and communicated with the outer channel, wherein a small oil pipe joint is arranged in the oil pipe joint, and the small oil pipe joint is arranged at the output end of the inner channel, and when the oil pipe joint is connected to the high-pressure pipeline and the small oil pipe joint is connected to the oil pipe, a power fluid inlet is formed in the outer channel, and the power fluid conveyed by the high-pressure pipeline is conveyed through the power pipe joint. The liquid inlet is transported to the outer channel; a driving stirring device, which is arranged at the other end of the drainage pump body, and the driving stirring device is connected with the outer channel through a straight-through port, and the power liquid enters the driving stirring device through the straight-through port, drives the driving stirring device to rotate, and disturbs the retentate to form a mixture; an ejector, the ejector is arranged at the output end of the driving stirring device, and after the power liquid output by the driving stirring device is transmitted to the ejector, a high-speed jet flow is formed, and a negative pressure area is formed by the high-speed jet flow, and the mixture is sucked into the ejector, and flows through the inner channel to the mixed liquid outlet formed by the small oil pipe joint, and the mixture is lifted and output.

[0006] Preferably, the ejector includes: a flow diverter, which is arranged at the output end of the driving and stirring device; a nozzle, which is connected to the flow diverter, and after the power fluid is drained by the flow diverter, it is transmitted to the large inlet of the nozzle and output through the small nozzle to form a high-speed jet stream; a drainage pipe, which is arranged at the small nozzle end of the nozzle and is connected to the diffuser, and is used to drain and output the mixture sucked into the ejector; and a flow diverter, which is connected to the drainage pipe and is used to guide the fluid flow direction of the mixture and transport the mixture to the inner channel.

[0007] Preferably, the drainage pump also includes: a negative pressure suction port, which is arranged on the drainage pump body. When the negative pressure zone is formed, the retained matter in the formation is sucked into the negative pressure zone through the negative pressure suction port, and the driven stirring device rotates to disturb the retained matter to form a mixture. After the mixture is drained by the drain device, it is mixed with the power fluid and the flow rate is increased, and then it is drained and output through the drainage pipe.

[0008] Preferably, the driving stirring device includes: a rotating water motor, which is fixed in the drainage pump body through a water motor bracket, and the rotating water motor is provided with an inclined discharge hole, after the power fluid flows through the rotating water motor, it is discharged through the inclined discharge hole, and drives the central axis of the rotating water motor to rotate; an agitator, the agitator is fixedly connected to the rotating water motor through the central axis, and when the central axis rotates, it drives the agitator to rotate, disturbing the retentate to form a mixture.

[0009] Preferably, the inclined discharge hole of the rotary water motor has an inclination angle greater than 70°.

[0010] Preferably, the drainage pump further comprises: a rotating sealing sleeve, wherein the rotating sealing sleeve is coaxially installed with the central shaft and is used for sealing the central shaft.

[0011] Preferably, the drainage pump further comprises: a small oil pipe reducer, which is arranged behind the small oil pipe joint and is used to cooperate with the small oil pipe joint to connect the oil pipe.

[0012] Preferably, the drainage pump further comprises: an impurity filter, wherein the impurity filter is disposed in the outer channel and is used for filtering impurities in the power fluid in the outer channel.

[0013] The above one or more technical solutions in this application have at least one or more of the following technical effects:

[0014] The present application provides a drainage pump, comprising: a drainage pump body, wherein an outer channel and an inner channel are arranged in the drainage pump body, wherein the outer channel is used for transmitting high-pressure power fluid, and the inner channel is used for conveying a mixture; an oil pipe joint, wherein the oil pipe joint is arranged at one end of the drainage pump body, and the oil pipe joint is arranged at the input end of the outer channel and communicates with the outer channel, wherein a small oil pipe joint is arranged in the oil pipe joint, and the small oil pipe joint is arranged at the output end of the inner channel, and when the oil pipe joint is connected to the high-pressure pipeline and the small oil pipe joint is connected to the oil pipe, a power fluid inlet is formed in the outer channel, and the power fluid conveyed by the high-pressure pipeline is conveyed through the power fluid inlet. The mixture is sent to the outer channel; a driving stirring device is arranged at the other end of the drainage pump body, and the driving stirring device is connected to the outer channel through a straight-through port, and the power fluid enters the driving stirring device through the straight-through port, driving the driving stirring device to rotate, disturbing the retentate to form a mixture; an ejector is arranged at the output end of the driving stirring device, and after the power fluid output by the driving stirring device is transmitted to the ejector, a high-speed jet is formed, and a negative pressure zone is formed by the high-speed jet, which sucks the mixture into the ejector, flows through the inner channel to the mixed liquid outlet formed by the small oil pipe joint, and lifts the mixture for output. The technical problem that the drainage pump is prone to blockage in the prior art, resulting in reduced work efficiency, is solved, and the technical effect of reducing the risk of blockage and improving work efficiency is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of the main structure of a drainage pump provided in an embodiment of the present application.

[0017] Figure 2 A partially enlarged schematic diagram of a driving and stirring device of a drainage pump provided in an embodiment of the present application.

[0018] Figure 3 This is an enlarged schematic diagram of the ejector portion of a drainage pump provided in an embodiment of the present application.

[0019] Figure 4 A schematic diagram of a drainage pump with a rotating injection device provided in an embodiment of the present application.

[0020] Figure 5A schematic cross-sectional view of the cylindrical structure of a rotary jet device of a drainage pump provided in an embodiment of the present application.

[0021] Explanation of the reference numerals: oil pipe joint 1, small oil pipe reducer 2, impurity filter 3, nozzle 4, negative pressure suction port 5, diverter 6, water motor bracket 7, agitator 8, central axis 9, rotating sealing sleeve 10, rotating water motor 11, diverter fixing bracket 12, diffuser head 13, drainage pipe 14, diverter 15, ejector 16, small oil pipe joint 17, mixed liquid outlet 18, power liquid inlet 19, cylindrical structure 20, conical structure 21, diversion hole 22, gradually expanding injection port 23, inlet cylinder 24, outlet cylinder 25. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. Many details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0024] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those generally understood by those skilled in the art of the technical field of this application. The terms used in the description of the embodiments of this application are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of this application. The term "and / or" used in this application includes any and all combinations of one or more related listed items.

[0025] like Figure 1 As shown, an embodiment of the present application provides a drainage pump, the drainage pump comprising:

[0026] A drainage pump body, wherein an outer channel and an inner channel are arranged in the drainage pump body, wherein the outer channel is used for transmitting high-pressure power fluid, and the inner channel is used for conveying a mixture; an oil pipe joint 1, wherein the oil pipe joint 1 is arranged at one end of the drainage pump body, and the oil pipe joint 1 is arranged at the input end of the outer channel, and is communicated with the outer channel; a small oil pipe joint 17 is arranged in the oil pipe joint 1, and the small oil pipe joint 17 is arranged at the output end of the inner channel; when the oil pipe joint 1 is connected to the high-pressure pipeline and the small oil pipe joint 17 is connected to the oil pipe, a power fluid inlet 19 is formed in the outer channel, and the power fluid conveyed by the high-pressure pipeline is conveyed to the outer channel through the power fluid inlet 19. channel; a driving stirring device, which is arranged at the other end of the drainage pump body, and the driving stirring device is connected to the external channel through a straight-through port, and the power fluid enters the driving stirring device through the straight-through port, drives the driving stirring device to rotate, and disturbs the retentate to form a mixture; an ejector 16, which is arranged at the output end of the driving stirring device, and after the power fluid output by the driving stirring device is transmitted to the ejector 16, a high-speed jet flow is formed, and a negative pressure area is formed by the high-speed jet flow, and the mixture is sucked into the ejector 16, and flows through the inner channel to the mixed liquid outlet 18 formed by the small oil pipe joint 17, and the mixture is lifted and output.

[0027] Specifically, the drainage pump is mainly composed of four key parts: a drainage pump body, an oil pipe joint 1, a driving stirring device and an ejector 16. Each part plays a specific role and together realizes the efficient and stable mixture delivery function.

[0028] Specifically, the drainage pump body is designed with an outer channel and an inner channel. The outer channel is responsible for the transmission of high-pressure power fluid, and the inner channel is used to transport the mixture, and the inner channel is a pipeline for transporting the mixture inside the ejector 16. Through the synergistic effect of these two channels, the input of power fluid and the output of the mixture are realized.

[0029] The oil pipe joint 1 is arranged at one end of the drainage pump body and is connected to the input end of the outer channel. Inside the oil pipe joint 1, there is also a small oil pipe joint 17, which is connected to the output end of the inner channel. When the oil pipe joint 1 is connected to the high-pressure pipeline and the small oil pipe joint 17 is connected to the oil pipe, the outer channel forms a power fluid inlet 19. In this way, the power fluid transported by the high-pressure pipeline can smoothly enter the outer channel.

[0030] The driving stirring device is located at the other end of the drainage pump body and is connected to the external channel through a straight-through port. After the power fluid enters the driving stirring device through the straight-through port, it will drive it to rotate. This rotation can disturb the retentate and form a mixture that is easy to transport.

[0031] Wherein, the driving stirring device can be replaced by a rotary injection device, such as Figure 4-Figure 5 As shown, the rotary jet device is arranged at the other end of the drainage pump body, and the rotary jet device is connected to the external channel through a straight-through port. After the power fluid enters the rotary jet device through the straight-through port, it will pass through a cylindrical structure 20. The bottom of the cylindrical structure 20 is a conical structure 21, and the tip of the conical structure 21 is provided with a guide hole 22 (for example, a diameter of 6mm), and the power fluid enters the interior of the cylindrical structure 20 from the guide hole 22. A gradually diverging jet port 23 (for example, four can be opened) is provided on the side wall of the cylindrical structure 20. The gradually diverging jet port 23 is composed of two cylinders of different diameters, wherein the diameter of the inlet cylinder 24 is smaller than the diameter of the outlet cylinder 25 (for example, the inlet diameter is 1.1mm, and the outlet diameter is 2mm) and has an inclination angle, so that the power fluid can gush out in a rotating shear jet when passing through the gradually diverging jet port 23 to form a rotating shear jet. The rotating shear jet has a strong disturbing force, which can disturb the sand, cement, coal slime and other retained materials in front to form a mixture that is easy to transport.

[0032] The ejector 16 is arranged at the output end of the driving and stirring device. After the power fluid outputted by the driving and stirring device is transmitted to the ejector 16, a high-speed jet flow is formed. This high-speed jet flow forms a negative pressure zone inside the ejector 16, thereby sucking the mixture into the ejector 16. Subsequently, the mixture flows through the inner channel to the mixed liquid outlet 18 formed by the small oil pipe joint 17, and is lifted and output, and can be used for the exploitation of natural gas wells, coalbed methane wells, shale gas wells, etc.

[0033] Preferably, Figure 3 As shown, the ejector 16 includes: a flow diverter 6, which is arranged at the output end of the driving stirring device; a nozzle 4, which is connected to the flow diverter 6, and the power fluid is drained by the flow diverter 6, then transmitted to the large inlet of the nozzle 4, and outputted through the small nozzle to form a high-speed jet; a drainage pipe 14, which is arranged at the small nozzle end of the nozzle 4, connected to the diffuser 13, and is used to drain and output the mixture sucked into the ejector 16; a deflector 15, which is connected to the drainage pipe 14, and is used to guide the fluid flow direction of the mixture and transport the mixture to the inner channel.

[0034] Specifically, in a preferred design, the ejector 16 includes four main parts: a flow guide 6 , a nozzle 4 , a flow guide tube 14 and a flow guide 15 .

[0035] The flow guider 6 is arranged at the output end of the driving and stirring device through the flow guider fixing frame 12 to receive and guide the power fluid output by the driving and stirring device to ensure that the power fluid can enter the nozzle 4 smoothly and efficiently.

[0036] The nozzle 4 is connected to the flow guide 6 and has a large inlet and a small nozzle. The large inlet is used to receive the power fluid guided by the flow guide 6, and the small nozzle is used to output a high-speed jet flow. After the power fluid is guided by the flow guide 6, it enters the large inlet of the nozzle 4. Inside the nozzle 4, the power fluid is accelerated and output from the small nozzle in the form of a high-speed jet flow. This high-speed jet flow forms a negative pressure area around the nozzle 4, so that a mixture can be sucked in, and the mixture includes sand, coal dust, coal slime, water, gas, etc.

[0037] The drainage pipe 14 is arranged at the small nozzle end of the nozzle 4, connected to the diffusion head 13, and receives the mixture flowing out of the diffusion head 13. The drainage pipe 14 is used to guide the mixture sucked into the ejector 16, ensuring that the mixture can smoothly enter the drainage pipe 14 from the nozzle 4. After the mixture enters the drainage pipe 14, the longer the drainage pipe 14 is, the stronger the drainage capacity is. The larger the negative pressure area formed between the inlet of the drainage pipe 14 and the nozzle 4, the stronger the liquid absorption capacity is, and the mixture of gas, water, sand, etc. can be quickly lifted to the ground through the drainage pipe 14.

[0038] The flow guide 15 is connected to the drainage tube 14. The flow guide 15 is responsible for guiding the fluid flow direction of the mixture, ensuring that the mixture can flow along a predetermined path and finally be transported to the inner channel.

[0039] By introducing the components such as the guide 6, the nozzle 4, the guide tube 14 and the guide 15, the ejector 16 of the drainage pump is significantly optimized. These components work together to achieve the functions of accelerating the power fluid, sucking and conveying the mixture, etc. This design not only improves the working efficiency of the drainage pump, but also enhances its stability and reliability.

[0040] Preferably, the drainage pump also includes: a negative pressure suction port 5, which is arranged on the drainage pump body. When the negative pressure zone is formed, the retention material in the formation is sucked into the negative pressure zone through the negative pressure suction port 5, and the retention material is rotated and disturbed by the driving stirring device to form a mixture. After the mixture is drained by the drain device 6, it is mixed with the power fluid and the flow rate is increased, and then it is drained and output through the drainage pipe 14.

[0041] Specifically, the drainage pump can be used to treat the retentate in the formation. The negative pressure suction port 5 is arranged on the main body of the drainage pump, and is connected to the formation or the area to be treated. For example, the negative pressure suction port 5 can be specifically a negative pressure chamber introducer. When the power fluid output by the driving stirring device is transmitted to the ejector 16, a high-speed jet flow will be formed and a negative pressure zone will be generated. When a negative pressure zone is formed inside the ejector 16, the negative pressure suction port 5 plays a key role. It allows the retentate in the formation to be effectively sucked into the negative pressure zone, mixed with the power fluid and increased flow rate, and then drained and output through the drainage pipe 14. Among them, after the power fluid enters the driving stirring device through the straight-through port, it will drive it to rotate, thereby disturbing the retentate to form a mixture that is easy to transport. This design not only improves the suction efficiency of the drainage pump, but also ensures that the retentate can be fully and evenly treated.

[0042] Preferably, Figure 2 As shown, the driving stirring device includes: a rotating water motor 11, which is fixed in the drainage pump body through a water motor bracket 7, and the rotating water motor 11 is provided with an inclined discharge hole. After the power fluid flows through the rotating water motor 11, it is discharged through the inclined discharge hole and drives the central axis 9 of the rotating water motor to rotate; an agitator 8, which is fixedly connected to the rotating water motor 11 through the central axis 9. When the central axis 9 rotates, it drives the agitator 8 to rotate, disturbing the retentate to form a mixture.

[0043] Specifically, the driving stirring device is a key component in the drainage pump, which is responsible for converting the power fluid into mechanical energy, thereby disturbing the retentate in the formation and forming a mixture that is easy to transport. In the preferred design, the driving stirring device includes two main parts: a rotary water motor 11 and an agitator 8.

[0044] The rotary water motor 11 is firmly fixed inside the drainage pump body through the water motor bracket 7. This design ensures that the rotary water motor 11 can remain stable during operation and will not be damaged by vibration or impact. The rotary water motor 11 is provided with inclined discharge holes, and the inclined discharge holes are preferably set to 8. When the power fluid flows through the rotary water motor 11, it will be discharged at a certain angle and speed through these inclined discharge holes. This design not only improves the utilization efficiency of the power fluid, but also enables the rotary water motor 11 to generate greater torque and rotation speed. Its working principle is: when the power fluid flows through the rotary water motor 11, it will exert a force on its internal blades, thereby driving the central axis 9 of the rotary water motor 11 to rotate. In this process, the kinetic energy of the power fluid is converted into mechanical energy, providing power for subsequent stirring work.

[0045] The agitator 8 is fixedly connected to the rotary water motor 11 through the central shaft 9. The agitator 8 can be plate-shaped and have a diameter smaller than the main body of the diverter 6. This design ensures that the agitator 8 can rotate synchronously with the rotation of the rotary water motor 11, and the up and down process is not easily blocked. When the central shaft 9 rotates, the agitator 8 will also rotate. During the rotation process, the blades of the agitator 8 will disturb the retentate in the formation, so that it forms a mixture that is easy to transport (for example, forming a mixture of gas, liquid, and sand).

[0046] By introducing the preferred design of the rotary water motor 11 and the stirrer 8, the driving stirring device can more efficiently convert the power fluid into mechanical energy and disturb the retentate in the formation to form a mixture. The inclined discharge hole design of the rotary water motor 11 improves the utilization efficiency of the power fluid and enables the rotary water motor 11 to generate greater torque and rotation speed. The stirrer 8 is fixedly connected to the rotary water motor 11 through the central shaft 9, ensuring that the stirrer 8 can rotate synchronously with the rotation of the rotary water motor 11, thereby efficiently processing the retentate. This design not only improves the working efficiency of the drainage pump, but also enhances its stability and reliability.

[0047] Preferably, the inclined discharge hole of the rotary water motor 11 has an inclination angle greater than 70°.

[0048] Specifically, in the preferred design, the inclined discharge hole of the rotary water motor 11 is designed to have an inclination angle greater than 70°. The inclined discharge hole is set at an angle greater than 70°, which can more effectively guide the power fluid to flow out of the rotary water motor 11. This design helps to reduce the energy loss of the power fluid during the outflow process, thereby improving its utilization efficiency.

[0049] When the power fluid flows out at a larger inclination angle, it will produce a greater impact force on the blades of the rotary water motor 11. This impact force can be converted into a greater torque and rotation speed, so that the rotary water motor 11 can drive the agitator 8 to rotate more effectively.

[0050] When the power fluid flows out at a larger inclination angle, it drives the agitator 8 to rotate in a more uniform and stable manner. This rotation method can more effectively disturb the retentate in the formation, so that it forms a more uniform and easier to transport mixture. This design not only improves the utilization efficiency of the power fluid, enhances the torque and rotation speed, but also optimizes the stirring effect, so that the drainage pump can more efficiently and stably handle the retentate in the formation.

[0051] Preferably, the drainage pump further comprises: a rotating sealing sleeve 10 , wherein the rotating sealing sleeve 10 is coaxially installed with the central shaft 9 and is used for sealing the central shaft 9 .

[0052] Specifically, the rotating sealing sleeve 10 is installed coaxially with the central shaft 9 and tightly wrapped around the outside of the central shaft 9. This design ensures that the rotating sealing sleeve 10 can effectively seal the central shaft 9 and prevent the fluid from leaking out from the gap between the central shaft 9 and the drainage pump body. The rotating sealing sleeve 10 is made of wear-resistant and corrosion-resistant materials to ensure that it can maintain stable sealing performance during long-term operation. When the central shaft 9 rotates, the rotating sealing sleeve 10 will rotate with it, but the sealing structure inside it will remain stationary, thereby forming a dynamic sealing interface. This interface can effectively prevent the passage of fluid and ensure that the fluid inside the drainage pump will not leak into the external environment. At the same time, the rotating sealing sleeve 10 can also protect the central shaft 9 from fluid erosion and wear, thereby extending the service life of the drainage pump.

[0053] Preferably, the drainage pump further comprises: a small oil pipe reducer 2, wherein the small oil pipe reducer 2 is arranged behind the small oil pipe joint 17 and is used to cooperate with the small oil pipe joint 17 to connect the oil pipe.

[0054] Specifically, the small oil pipe reducer 2 is designed to have two ends with different diameters, one end is connected to the small oil pipe connector 17, and the other end is used to connect to another oil pipe. This design allows the small oil pipe reducer 2 to be used as a transition piece to connect oil pipes with different diameters. The existence of the small oil pipe reducer 2 makes the oil pipe connection more flexible and diverse, and can meet the connection requirements between oil pipes of different diameters, thereby ensuring that the oil pipes in the drainage pump system can smoothly transmit fluids, providing a strong guarantee for its flexibility and diversity in practical applications.

[0055] Preferably, the drainage pump further comprises: an impurity filter 3, wherein the impurity filter 3 is arranged in the outer channel and is used for filtering impurities in the power fluid in the outer channel.

[0056] Specifically, the impurity filter 3 can be designed as a cylindrical or box-shaped structure, filled with a filter medium (such as a filter screen, a filter element, etc.) inside. It is installed in the outer channel, perpendicular or parallel to the flow direction of the power fluid, so as to effectively filter impurities in the power fluid.

[0057] When the power fluid flows through the impurity filter 3, the impurities are blocked by the filter medium and remain inside the filter, and the pure power fluid continues to flow to the subsequent components. The pore size of the filter medium can be adjusted according to actual needs to filter out impurities of different sizes.

[0058] The impurity filter 3 can effectively filter out impurities in the power fluid to prevent these impurities from causing wear or clogging to the blades, bearings and other components of the drainage pump. In addition, the impurity filter 3 can also improve the purity of the power fluid, thereby ensuring the working efficiency and stability of the drainage pump.

[0059] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0060] The present application provides a drainage pump, comprising: a drainage pump body, wherein an outer channel and an inner channel are arranged in the drainage pump body, wherein the outer channel is used for transmitting high-pressure power fluid, and the inner channel is used for conveying a mixture; an oil pipe joint 1, wherein the oil pipe joint 1 is arranged at one end of the drainage pump body, and the oil pipe joint 1 is arranged at the input end of the outer channel and communicated with the outer channel, wherein a small oil pipe joint 17 is arranged in the oil pipe joint 1, and the small oil pipe joint 17 is arranged at the output end of the inner channel, and when the oil pipe joint 1 is connected to a high-pressure pipeline and the small oil pipe joint 17 is connected to an oil pipeline, a power fluid inlet 19 is formed in the outer channel, and the power fluid conveyed by the high-pressure pipeline is conveyed through the power fluid inlet 19 The pump is transported to the outer channel; a driving stirring device is arranged at the other end of the drainage pump body, and the driving stirring device is connected to the outer channel through a straight-through port, and the power fluid enters the driving stirring device through the straight-through port, drives the driving stirring device to rotate, and disturbs the retentate to form a mixture; an ejector 16 is arranged at the output end of the driving stirring device, and after the power fluid output by the driving stirring device is transmitted to the ejector 16, a high-speed jet is formed, and a negative pressure area is formed by the high-speed jet, and the mixture is sucked into the ejector 16, and flows through the inner channel to the mixed liquid outlet 18 formed by the small oil pipe joint 17, and the mixture is lifted and output. The technical effect of reducing the risk of blockage and improving work efficiency is achieved.

[0061] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the present application is intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0062] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the embodiments of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. A drainage pump, characterized in that: The drainage pump comprises: A drainage pump body, wherein an outer channel and an inner channel are provided in the drainage pump body, wherein the outer channel is used for transmitting high-pressure power fluid, and the inner channel is used for conveying a mixture; An oil pipe joint, the oil pipe joint is arranged at one end of the drainage pump body, and the oil pipe joint is arranged at the input end of the outer channel, communicating with the outer channel, a small oil pipe joint is arranged in the oil pipe joint, and the small oil pipe joint is arranged at the output end of the inner channel, when the oil pipe joint is connected to the high-pressure pipeline and the small oil pipe joint is connected to the oil pipe, a power fluid inlet is formed in the outer channel, and the power fluid transported by the high-pressure pipeline is transported to the outer channel through the power fluid inlet; A driving stirring device, wherein the driving stirring device is arranged at the other end of the drainage pump body, and the driving stirring device is connected to the external channel through a straight-through port, and the power fluid enters the driving stirring device through the straight-through port, driving the driving stirring device to rotate, disturbing the retentate to form a mixture; The ejector is arranged at the output end of the driving and stirring device. After the power fluid output by the driving and stirring device is transmitted to the ejector, a high-speed jet flow is formed. A negative pressure area is formed by the high-speed jet flow, and the mixture is sucked into the ejector. The mixture flows through the inner channel to the mixed liquid outlet formed by the small oil pipe joint, and the mixture is lifted and output.

2. A drainage pump according to claim 1, characterized in that: The ejector comprises: A flow guider, the flow guider is arranged at the output end of the driving stirring device; A nozzle, wherein the nozzle is connected to the flow guider, and after the power fluid is guided by the flow guider, it is transmitted to the large inlet of the nozzle and outputted through the small nozzle to form a high-speed jet flow; A drainage pipe, which is arranged at the small nozzle end of the nozzle and connected to the diffusion head, and is used for draining and outputting the mixture sucked into the ejector; A flow guide is connected to the drainage tube and is used to guide the fluid flow direction of the mixture and transport the mixture to the inner channel.

3. A drainage pump according to claim 2, characterized in that: The drainage pump also includes: A negative pressure suction port is provided on the drainage pump body. When the negative pressure zone is formed, the retained matter in the formation is sucked into the negative pressure zone through the negative pressure suction port. The driven stirring device rotates and disturbs the retained matter to form a mixture. After the mixture is drained by the drain device, it is mixed with the power fluid and the flow rate is increased, and then it is drained and output through the drainage pipe.

4. A drainage pump according to claim 1, characterized in that: The driving stirring device comprises: A rotary water motor, wherein the rotary water motor is fixed in the drainage pump body through a water motor bracket, and the rotary water motor is provided with an inclined discharge hole, and the power fluid flows through the rotary water motor and is discharged through the inclined discharge hole, and drives the central axis of the rotary water motor to rotate; The agitator is fixedly connected to the rotary water motor via the central shaft. When the central shaft rotates, the agitator is driven to rotate, thereby disturbing the retentate to form a mixture.

5. A drainage pump as claimed in claim 4, characterized in that: The inclined discharge hole of the rotary water motor has an inclination angle greater than 70°.

6. A drainage pump as claimed in claim 4, characterized in that: The drainage pump also includes: A rotating sealing sleeve is coaxially installed with the central shaft and is used for sealing the central shaft.

7. A drainage pump according to claim 1, characterized in that: The drainage pump also includes: A small oil pipe reducer is arranged behind the small oil pipe joint and is used to cooperate with the small oil pipe joint to connect the oil pipe.

8. A drainage pump according to claim 1, characterized in that: The drainage pump also includes: An impurity filter is disposed in the outer channel and is used to filter impurities in the power fluid in the outer channel.

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