A solid-liquid separation device for underground drainage

By introducing the design of the skein cleaning filter plate into the solid-liquid separation device for downhole liquid discharge, the problem of reduced filtration effect and inconvenience in use caused by blockage of the filter media in the existing device is solved, and efficient and long-term solid-liquid separation effect is achieved.

CN222709076UActive Publication Date: 2025-04-04SHAANXI TENGYUE PETROLEUM TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Application Number
CN202421041004.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2025-04-04
Estimated Expiration
2034-05-14

AI Technical Summary

Technical Problem

The existing solid-liquid separation device for downhole liquid discharge is likely to reduce the filtration effect due to clogging of the filter medium after a long period of use, resulting in a discomfort and difficulty in continuous use.

Method used

A solid-liquid separation device including a filter box, a filter plate and a twisted dragon is designed. Through the setting of the crimping dragon, after the water flow passes through the filter plate to filter the solid, the crimping dragon will clean the surface of the filter plate and transport the solid to the collection box, achieving effective collection of solids and long-term maintenance of the filtration effect.

Benefits of technology

Through the cleaning effect of the dragon, the device extends the service life of the filter plate, maintains an efficient solid-liquid separation effect, avoids the problem of filter media blockage, and achieves long-term continuous use.

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Abstract

The utility model relates to the technical field of solid-liquid separation, and discloses a solid-liquid separation device for underground drainage, including a filter box, wherein both ends of the filter box are fixedly connected with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are both connected with the inside of the filter box, a second connecting tube is vertically fixedly connected with the bottom of the filter box, a collecting box is fixedly connected with the bottom of the second connecting tube, a filtering mechanism is arranged inside the filter box, a collecting mechanism is arranged inside the collecting box, a suction pump is arranged on the surface of the collecting box, and the input end of the suction pump is installed at one end of the liquid outlet pipe. The utility model can filter the solids inside the water flow through the filter plate while conveying the water flow through the setting of the auger, and then the surface of the filter plate will be cleaned under the action of the auger, and the filtered solids will be conveyed to the inside of the collecting box at the same time, so that the filtered solids can be collected at the same time.
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Description

Technical Field

[0001] The utility model relates to the technical field of solid-liquid separation, in particular to a solid-liquid separation device for underground drainage. Background Art

[0002] Solid-liquid separation for downhole drainage is a treatment method that separates solids from liquids in downhole drainage. Downhole drainage typically contains liquids containing large amounts of suspended solid particles, such as mud, silt, and sand and gravel generated during downhole drilling or oil production. To achieve environmental protection and resource recovery, downhole drainage requires treatment. Solid-liquid separation is a commonly used downhole drainage treatment method. It uses physical or chemical methods to separate the suspended solid particles from the liquid, resulting in clean liquid and solid waste.

[0003] Filtration is a commonly used method for solid-liquid separation in downhole drainage. Filtration is a method of separating solid particles using filter media such as filter paper and filter screen. The downhole drainage is passed through the filter medium. The solid particles cannot pass through the pores of the filter medium and are filtered and retained above the filter medium to form solid residue. Then, the supernatant liquid is poured out to obtain a clean liquid. However, some existing methods of using filtration to separate solids and liquids in downhole drainage are easily clogged in actual use because the surface of the filter paper or filter screen is easily clogged after long-term filtration, which will reduce the filtration effect and also cause drainage to be blocked, making it inconvenient for long-term continuous use. Therefore, there is an urgent need to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a solid-liquid separation device for underground drainage.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A solid-liquid separation device for downhole drainage comprises a filter box, wherein both ends of the filter box are fixedly connected with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are both connected with the interior of the filter box, the bottom of the filter box is vertically fixedly connected with a second connecting tube, the bottom of the second connecting tube is fixedly connected with a collecting box, a filtering mechanism is provided inside the filter box, a collecting mechanism is provided inside the collecting box, a suction pump is provided on the surface of the collecting box, the input end of the suction pump is installed at one end of the liquid outlet pipe, and through the setting of the auger, the solids inside the water flow can be filtered through the setting of the filter plate while the water flow is transported, and then under the action of the auger, the surface of the filter plate will be cleaned, and the filtered solids will be transported to the interior of the collection box, so that the filtered solids can be collected at the same time.

[0007] Preferably, the filtering mechanism includes a filter plate, which is installed inside the filter box. The filter plate is arranged vertically in an arc shape, and both ends of the filter plate are fixedly connected to opposite sides inside the filter box for filtering solids inside the water flow.

[0008] Furthermore, the top of the filter box is vertically fixedly connected to a first connecting cylinder, the first connecting cylinder and the second connecting cylinder are both connected to the interior of the filter box, and an auger is rotatably connected to the interior of the filter box, the auger is in contact with the surface of the filter plate, the top of the auger is sleeved inside the first connecting cylinder, the bottom of the auger is sleeved inside the second connecting cylinder, a rotating shaft is sleeved at the center of the interior of the auger, the top of the rotating shaft is sleeved on the top of the first connecting cylinder, a motor is installed on the top of the first connecting cylinder, the motor output shaft is fixedly connected to the top of the rotating shaft, the bottom end of the rotating shaft is sleeved with a support ring, a plurality of brackets are fixedly connected to the surface of the support ring, and the multiple brackets are fixedly connected to the inner wall of the second connecting cylinder at one end away from each other, for rotating the auger, thereby making the surface of the filter plate cleaner and transporting the filtered solids at the same time.

[0009] Preferably, the collecting mechanism includes a baffle, the second connecting tube is connected to the interior of the collecting box, an outlet is provided on one side of the surface of the collecting box, a slide is fixedly connected to one side of the surface of the collecting box, the baffle slides vertically on one side of the surface of the collecting box, both ends of the baffle slide inside the slide, a handle is fixedly connected to the surface of the baffle, a bottom plate is installed at the bottom of the baffle, a support plate is fixedly connected to the bottom of the suction pump, and support columns are vertically fixedly connected to the four corners of the bottom of the support plate, and the bottom ends of the four support columns are fixedly connected to the top of the bottom plate, which is used to make the suction pump more stable and facilitate the discharge of dirt inside the collection box.

[0010] The beneficial effects of the utility model are:

[0011] During use, the auger setting can be used to transport the water flow while filtering the solids inside the water flow through the filter plate setting. Then, under the action of the auger, the surface of the filter plate will be cleaned, so that the filter plate can effectively filter the water body for a long time. At the same time, the filtered solids will be transported to the inside of the collection box, so that the filtered solids can be collected at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of a solid-liquid separation device for downhole drainage proposed by the utility model;

[0013] Figure 2 This is a schematic diagram of the filtering mechanism of a solid-liquid separation device for downhole drainage proposed by the utility model;

[0014] Figure 3This is a schematic diagram of the collection mechanism of a solid-liquid separation device for downhole drainage proposed by the utility model;

[0015] Figure 4 This is a partial structural cross-sectional view of a solid-liquid separation device for downhole drainage proposed by the utility model.

[0016] In the figure: 1. Filter box; 11. First connecting tube; 12. Second connecting tube; 13. Support ring; 14. Bracket; 15. Liquid inlet pipe; 16. Liquid outlet pipe; 17. Filter plate; 2. Collection box; 21. Outlet; 22. Slide; 3. Baffle; 31. Handle; 4. Bottom plate; 41. Support column; 42. Support plate; 5. Suction pump; 6. Auger; 61. Rotating shaft; 62. Motor. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figures 1-4 A solid-liquid separation device for downhole drainage includes a filter box 1, with a liquid inlet pipe 15 and a liquid outlet pipe 16 fixedly connected at both ends of the filter box 1, and the liquid inlet pipe 15 and the liquid outlet pipe 16 are both connected to the inside of the filter box 1. A second connecting tube 12 is vertically fixedly connected to the bottom of the filter box 1, and a collecting box 2 is fixedly connected to the bottom of the second connecting tube 12. A filtering mechanism is provided inside the filter box 1, and a collecting mechanism is provided inside the collecting box 2. A suction pump 5 is provided on the surface of the collecting box 2, and the input end of the suction pump 5 is installed at one end of the liquid outlet pipe 16. Through the setting of the auger 6, the solids inside the water flow can be filtered through the setting of the filter plate 17 while the water flow is transported. Then, under the action of the auger 6, the surface of the filter plate 17 will be cleaned, and the filtered solids will be transported to the inside of the collecting box 2, so that the filtered solids can be collected at the same time.

[0019] Reference Figure 1 and Figure 2 In a preferred embodiment, the filtering mechanism includes a filter plate 17, which is installed inside the filter box 1. The filter plate 17 is arranged vertically in an arc shape, and the two ends of the filter plate 17 are fixedly connected to opposite sides inside the filter box 1 for filtering solids inside the water flow.

[0020] Reference Figure 1 and Figure 2In a preferred embodiment, the top of the filter box 1 is vertically fixedly connected to a first connecting tube 11, and the first connecting tube 11 and the second connecting tube 12 are both connected to the interior of the filter box 1, and an auger 6 is rotatably connected inside the filter box 1, and the auger 6 is in contact with the surface of the filter plate 17. The top of the auger 6 is sleeved inside the first connecting tube 11, and the bottom of the auger 6 is sleeved inside the second connecting tube 12. A rotating shaft 61 is sleeved at the center of the auger 6, and the top of the rotating shaft 61 is sleeved inside the top of the first connecting tube 11. A motor 62 is installed on the top of the first connecting tube 11, and the output shaft of the motor 62 is fixedly connected to the top of the rotating shaft 61. A support ring 13 is sleeved at the bottom end of the rotating shaft 61, and a plurality of brackets 14 are fixedly connected to the surface of the support ring 13. The multiple brackets 14 are fixedly connected to the inner wall of the second connecting tube 12 at one end away from each other, which is used to rotate the auger 6, thereby cleaning the surface of the filter plate 17 and transporting the filtered solids at the same time.

[0021] Reference Figure 3 and Figure 4 In a preferred embodiment, the collecting mechanism includes a baffle 3, the second connecting tube 12 is connected to the interior of the collecting box 2, an outlet 21 is provided on one side of the surface of the collecting box 2, and a slide 22 is fixedly connected to one side of the surface of the collecting box 2. The baffle 3 slides vertically on one side of the surface of the collecting box 2, and both ends of the baffle 3 slide inside the slide 22. A handle 31 is fixedly connected to the surface of the baffle 3, and a bottom plate 4 is installed at the bottom of the baffle 3. The bottom of the suction pump 5 is fixedly connected to a support plate 42, and the four corners of the bottom of the support plate 42 are vertically fixedly connected to support columns 41. The bottom ends of the four support columns 41 are fixedly connected to the top of the bottom plate 4, which is used to make the suction pump 5 more stable and facilitate the discharge of dirt inside the collection box 2.

[0022] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: in actual use, through the setting of the auger 6, the solids inside the water flow can be filtered through the setting of the filter plate 17 while the water flow is being transported, and then under the action of the auger 6, the surface of the filter plate 17 will be cleaned, and at the same time, the filtered solids will be transported to the inside of the collection box 2, so that the filtered solids can be collected together. When in use, one end of the liquid inlet pipe 15 can be connected to the pipeline first, and then the well can be drained through the pipeline, and then the suction pump 5 can be driven to allow the water in the well to enter the filter box through the pipeline under the action of the suction pump 5. Inside the filter box 1, the solids inside the water are filtered through the filter plate 17, and then the water passes through the liquid outlet pipe 16. After passing through the suction pump 5, the filtered water is discharged through the drain port on the suction pump 5, so that the downhole drainage can be separated into solids and liquids. At the same time, the motor 62 can be driven to drive the rotating shaft 61 and the auger 6 to rotate, and the auger 6 can clean the solids remaining on the surface of the filter plate 17, so that the filter plate 17 has a better filtering effect on the water body. At the same time, the cleaned solids will be transported downward by the action of the auger 6, so that the solids can be transported to the inside of the collection box 2 for the same treatment, thereby improving the use effect of the device.

[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A solid-liquid separation device for underground drainage, comprising a filter box (1), characterized in that: The two ends of the filter box (1) are respectively fixedly connected with a liquid inlet pipe (15) and a liquid outlet pipe (16); the liquid inlet pipe (15) and the liquid outlet pipe (16) are both connected to the inside of the filter box (1); a second connecting tube (12) is vertically fixedly connected to the bottom of the filter box (1); the bottom of the second connecting tube (12) is fixedly connected to a collecting box (2); a filtering mechanism is provided inside the filter box (1); a collecting mechanism is provided inside the collecting box (2); a suction pump (5) is provided on the surface of the collecting box (2); the input end of the suction pump (5) is mounted on one end of the liquid outlet pipe (16).

2. A downhole solid-liquid separation device for drainage according to claim 1, characterized in that: The filtering mechanism comprises a filter plate (17), the filter plate (17) is installed inside the filter box (1), the filter plate (17) is arranged vertically in an arc shape, and the two ends of the filter plate (17) are respectively fixedly connected to opposite sides inside the filter box (1).

3. A downhole solid-liquid separation device for drainage according to claim 2, characterized in that: A first connecting tube (11) is vertically fixedly connected to the top of the filter box (1); the first connecting tube (11) and the second connecting tube (12) are both connected to the inside of the filter box (1); an auger (6) is rotatably connected to the inside of the filter box (1); the auger (6) is in contact with the surface of the filter plate (17); the top of the auger (6) is sleeved inside the first connecting tube (11), and the bottom of the auger (6) is sleeved inside the second connecting tube (12).

4. A downhole solid-liquid separation device for drainage according to claim 3, characterized in that: A rotating shaft (61) is sleeved at the center of the auger (6), and the top of the rotating shaft (61) is sleeved on the top of the first connecting tube (11). A motor (62) is installed on the top of the first connecting tube (11), and the output shaft of the motor (62) is fixedly connected to the top of the rotating shaft (61).

5. A downhole solid-liquid separation device for drainage according to claim 4, characterized in that: A support ring (13) is sleeved on the bottom end of the rotating shaft (61), and a plurality of brackets (14) are fixedly connected to the surface of the support ring (13). The ends of the plurality of brackets (14) that are away from each other are fixedly connected to the inner wall of the second connecting tube (12).

6. The solid-liquid separation device for underground drainage according to claim 1, characterized in that: The collecting mechanism comprises a baffle (3), the second connecting tube (12) is connected to the inside of the collecting box (2), an outlet (21) is provided on one side of the surface of the collecting box (2), a slideway (22) is fixedly connected to one side of the surface of the collecting box (2), the baffle (3) slides vertically on one side of the surface of the collecting box (2), both ends of the baffle (3) slide inside the slideway (22), and a handle (31) is fixedly connected to the surface of the baffle (3).

7. A downhole solid-liquid separation device for drainage according to claim 6, characterized in that: A bottom plate (4) is installed at the bottom of the baffle (3), a support plate (42) is fixedly connected to the bottom of the suction pump (5), and support columns (41) are vertically fixedly connected to the four corners of the bottom of the support plate (42), and the bottom ends of the four support columns (41) are fixedly connected to the top of the bottom plate (4).