Scum removing device of oil field three-phase separator

Abstract

The utility model relates to the technical field of three-phase separators, in particular to a scum removing device of an oil field three-phase separator, which comprises a mounting sleeve, the mounting sleeve is fixedly mounted on the outer side of the three-phase separator through bolts, a containing shell is fixedly mounted on the outer side of the mounting sleeve, a fixing frame is fixedly mounted at the upper end of the containing shell, and a scum removing device is mounted on the fixing frame. An electric telescopic rod is fixedly mounted at the top of the fixing frame, a lifting frame is fixedly mounted at the lower end of the electric telescopic rod, a motor is fixedly mounted in the lifting frame, a connecting mechanism is fixedly mounted at the end of the motor, and a guide rod is fixedly mounted at the lower end of the connecting mechanism; the scum removing device can clean scum on the surface of the three-phase separator, the height of the scraping rod can be adjusted according to the height of the liquid level, and the scum removing device is worthy of popularization.

Description

Technical Field

[0001] This utility model relates to the field of three-phase separator technology, and in particular to a scum removal device for an oilfield three-phase separator. Background Technology

[0002] During oilfield extraction, the output of oil wells is a three-phase mixture of crude oil, water, and natural gas, containing impurities such as silt, colloids, asphalt, and chemical residues. As the core equipment in the separation process, the three-phase separator relies on principles such as gravity settling and centrifugal separation to achieve efficient separation of oil, water, and gas, laying a solid foundation for subsequent crude oil purification, water treatment, and other processes.

[0003] During the separation process in a three-phase separator, the gums and asphaltenes in crude oil, the suspended solids and emulsions in water, and the added demulsifiers, flocculants, and other chemicals interact to form scum on the liquid surface. To clean this scum, a rotating scraper is required. By ensuring close contact between the scraper and the liquid surface, the floating residue is thoroughly removed.

[0004] However, a significant problem exists during scum removal: some solution is scraped off and discharged along with the scum. This directly causes the overall liquid level within the three-phase separator to drop, and the scraper, which was originally precisely in contact with the liquid surface, loses its contact reference, making it difficult to maintain sufficient and close contact with the liquid surface. This not only leads to missed areas being scraped during scraping, reducing the thoroughness of scum removal, but also may result in an excessive gap between the scraper and the liquid surface, making it unable to effectively scrape up newly formed scum, seriously affecting the continuity and effectiveness of the overall cleaning work. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where some solution is scraped off along with the scum, causing the liquid level to drop and thus affecting the effectiveness of the scraper cleaning work. Therefore, this invention proposes a scum removal device for an oilfield three-phase separator.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a scum removal device for an oilfield three-phase separator, including an installation sleeve, which is fixedly installed on the outside of the three-phase separator by bolts. A container shell is fixedly installed on the outside of the installation sleeve. A fixing frame is fixedly installed on the upper end of the container shell. An electric telescopic rod is fixedly installed on the top of the fixing frame. A lifting frame is fixedly installed on the lower end of the electric telescopic rod. A motor is fixedly installed inside the lifting frame. A connecting mechanism is fixedly installed on the end of the motor. A guide rod is fixedly installed on the lower end of the connecting mechanism. A scraper is fixedly installed on one side of the guide rod.

[0008] Preferably, the connecting mechanism includes a housing, the upper end of which is fixedly connected to a motor, a flange fixedly installed on the outer side of the housing, the lower end of the lifting frame slidably sleeved on the outer side of the flange, a movable block slidably arranged inside the housing, a connecting rod fixedly installed on the lower end of the movable block, and the lower end of the connecting rod extending through to the bottom of the housing and fixedly connected to a guide rod.

[0009] Preferably, the movable block has a square cross-section and its interior is made of foam.

[0010] Preferably, protrusions are uniformly fixedly installed on the side of the movable block.

[0011] Preferably, the central axes of the mounting sleeve, flange, housing, motor, and connecting rod coincide.

[0012] Preferably, a float is fixedly installed on the lower surface of the guide rod.

[0013] Preferably, the length of the guide rod is longer than the diameter of the mounting sleeve, and the length of the scraper rod is longer than the radius of the mounting sleeve.

[0014] Preferably, the scraper bar is made of silicone.

[0015] The present invention discloses a scum removal device for an oilfield three-phase separator, which has the following advantages: During use, the scum removal device is flexible in adjustment. It uses an electric telescopic rod to move the lifting frame and motor assembly up and down, allowing for precise adjustment of the guide rod and scraper's working positions according to the liquid level, ensuring the scraper always contacts the liquid surface and adapting to different working conditions. It is highly efficient in cleaning; the motor-driven scraper quickly scrapes away scum, while the guide rod directs the residue to both ends and transports it to the collection shell for discharge, achieving centralized scum treatment. Installation is simple; it is directly fixed to the outside of the separator using an installation sleeve, requiring no modification to the equipment body, facilitating rapid deployment and use. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural schematic diagram of a scum removal device for an oilfield three-phase separator proposed in this utility model;

[0017] Figure 2 This is a three-dimensional structural schematic diagram of a scum removal device for an oilfield three-phase separator proposed in this utility model;

[0018] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 4 This is a schematic diagram of the guide rod, scraper, and float in a scum removal device for an oilfield three-phase separator proposed in this utility model.

[0020] Figure 5 for Figure 1 A magnified structural diagram at point B in the middle.

[0021] In the diagram: 100, three-phase separator; 1, mounting sleeve; 2, container shell; 3, fixing frame; 4, electric telescopic rod; 5, lifting frame; 6, flange; 7, box body; 8, motor; 9, movable block; 91, protrusion; 10, connecting rod; 11, guide rod; 12, scraper rod; 13, float. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1: Refer to Figure 1-5 A scum removal device for an oilfield three-phase separator includes an installation sleeve 1, which is bolted to the outside of the three-phase separator 100. The top of the installation sleeve 1 is lower than the top of the three-phase separator 100. A container shell 2 is fixedly installed on the outside of the installation sleeve 1. A fixing frame 3 is fixedly installed on the upper end of the container shell 2. An electric telescopic rod 4 is fixedly installed on the top of the fixing frame 3. A lifting frame 5 is fixedly installed on the lower end of the electric telescopic rod 4. Activation of the electric telescopic rod 4 can drive the lifting frame 5 to move up and down.

[0024] A motor 8 is fixedly installed inside the lifting frame 5. A connecting mechanism is fixedly installed at the end of the motor 8, and a guide rod 11 is fixedly installed at the lower end of the connecting mechanism. Starting the motor 8 can drive the guide rod 11 to rotate through the connecting mechanism. The length of the guide rod 11 is longer than the diameter of the mounting sleeve 1, and the height of the guide rod 11 is higher than the top height of the three-phase separator 100. A scraper 12 is fixedly installed on one side of the guide rod 11. The length of the scraper 12 is longer than the radius of the mounting sleeve 1. When the guide rod 11 rotates, it will also drive the scraper 12 to rotate. When the scraper 12 rotates, it can scrape off the residue floating on the liquid surface inside the three-phase separator 100.

[0025] As attached Figure 1As shown, the scraper 12 is slightly tilted downwards at its end. When the scraper 12 rotates on the solution surface, residue flows onto the surface of the scraper 12 along with some of the solution, and the solution falls into the guide rod 11. The solution and residue falling into the guide rod 11 flow to both ends of the guide rod 11 and then flow into the container shell 2 for discharge. Simultaneously, the height of the guide rod 11 and scraper 12 can be adjusted via the electric telescopic rod 4, allowing for greater flexibility by adjusting the height of the guide rod 11 and scraper 12 according to changes in liquid level. The scraper 12 is made of silicone, enabling it to deform. When the scraper 12 collides with the internal components of the three-phase separator 100 while cleaning residue, the scraper 12 deforms without damaging the internal components, and it does not affect the cleaning operation of the device.

[0026] Working principle: When using the scum removal device of the three-phase separator in the oilfield, the installation sleeve 1 is installed on the outside of the three-phase separator 100. The electric telescopic rod 4 is started to drive the lifting frame 5 to move downward. The movement of the lifting rod 5 drives the motor 8 to move downward. The movement of the motor 8 drives the guide rod 11 and scraper 12 to move up and down through the connecting mechanism. The height of the guide rod 11 and scraper 12 can be adjusted according to the specific liquid level to keep the scraper 12 in contact with the liquid surface. The motor 8 is started to drive the guide rod 11 and scraper 12 to rotate. During the rotation of the scraper 12, the residue floating on the liquid surface is scraped up and falls into the guide rod 11. The residue falling into the guide rod 11 flows to both ends and flows into the container shell 2 to be discharged.

[0027] Example 2: In Example 1, when the device uses a scraper 12 to remove floating residue from the liquid surface, the rotation of the scraper 12 disturbs the liquid surface, causing ripples. The height of the liquid surface changes with the flow of the waves. The height of the scraper 12 is entirely controlled by the electric telescopic rod 4, which lacks flexibility. It is also difficult for the scraper 12 to completely conform to the undulating liquid surface when rotating. Therefore, this example is proposed. (Refer to...) Figure 1-2 and Figure 5In another preferred embodiment of this utility model, based on embodiment 1, the connecting mechanism includes a box body 7. The upper end of the box body 7 is fixedly connected to a motor 8. When the motor 8 starts, it can drive the box body 7 to rotate. A flange 6 is fixedly installed on the outer side of the box body 7. The lower end of the lifting frame 5 is slidably sleeved on the outer side of the flange 6. A movable block 9 is slidably arranged inside the box body 7. The movable block 9 has a square cross-section and is made of foam. The foam is lightweight, which can reduce the burden on the guide rod 11 and make it easier for the guide rod 11 and the scraper 12 to move up and down with the fluctuation of the liquid surface. Protrusions 91 are evenly fixedly installed on the side of the movable block 9. The protrusions 91 can reduce the contact area between the movable block 9 and the box body 7, reduce friction, and further facilitate the up and down movement of the guide rod 11 and the scraper 12. A connecting rod 10 is fixedly installed at the lower end of the movable block 9. The central axis of the mounting sleeve 1, flange 6, box 7, motor 8 and connecting rod 10 coincides. The lower end of the connecting rod 10 extends through to the bottom of the box 7 and is fixedly connected to the guide rod 11. When the guide rod 11 moves up and down, it can drive the connecting rod 10 to move up and down. The up and down movement of the connecting rod 10 can drive the movable block 9 to move up and down inside the box 7, so that the guide rod 11 and scraper 12 can move up and down slightly with the fluctuation of the liquid surface, so that the scraper 12 can fit more closely with the liquid surface and improve the efficiency of cleaning residue.

[0028] Example 2: Refer to Figure 1 and Figure 4 As another preferred embodiment of the present invention, based on embodiment 1, a float 13 is fixedly installed on the lower surface of the guide rod 11. The float 13 is made of foam. The float 13 can increase the buoyancy of the guide rod 11 on the liquid surface, making it easier for the guide rod 11 to move up and down with the fluctuation of the liquid surface, and making the scraper 12 fit more closely to the liquid surface.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A scum removal device for an oilfield three-phase separator, comprising an installation sleeve (1), wherein the installation sleeve (1) is fixedly installed on the outside of the three-phase separator (100) by bolts, characterized in that, A container shell (2) is fixedly installed on the outside of the mounting sleeve (1). A fixing frame (3) is fixedly installed on the upper end of the container shell (2). An electric telescopic rod (4) is fixedly installed on the top of the fixing frame (3). A lifting frame (5) is fixedly installed on the lower end of the electric telescopic rod (4). A motor (8) is fixedly installed inside the lifting frame (5). A connecting mechanism is fixedly installed at the end of the motor (8). A guide rod (11) is fixedly installed on the lower end of the connecting mechanism. A scraper rod (12) is fixedly installed on one side of the guide rod (11).

2. The scum removal device for an oilfield three-phase separator according to claim 1, characterized in that, The connecting mechanism includes a box (7), the upper end of which is fixedly connected to a motor (8), a flange (6) is fixedly installed on the outer side of the box (7), the lower end of the lifting frame (5) is slidably sleeved on the outer side of the flange (6), a movable block (9) is slidably arranged inside the box (7), a connecting rod (10) is fixedly installed on the lower end of the movable block (9), and the lower end of the connecting rod (10) extends through to the bottom of the box (7) and is fixedly connected to the guide rod (11).

3. The scum removal device for an oilfield three-phase separator according to claim 2, characterized in that, The movable block (9) has a square cross-section and is made of foam inside.

4. The scum removal device for an oilfield three-phase separator according to claim 3, characterized in that, The movable block (9) has protrusions (91) evenly fixedly installed on its side.

5. The scum removal device for an oilfield three-phase separator according to claim 4, characterized in that, The central axes of the mounting sleeve (1), flange (6), housing (7), motor (8) and connecting rod (10) coincide.

6. The scum removal device for an oilfield three-phase separator according to claim 5, characterized in that, A float (13) is fixedly installed on the lower surface of the guide rod (11).

7. The scum removal device for an oilfield three-phase separator according to claim 1, characterized in that, The length of the guide rod (11) is longer than the diameter of the mounting sleeve (1), and the length of the scraper (12) is longer than the radius of the mounting sleeve (1).

8. The scum removal device for an oilfield three-phase separator according to claim 1, characterized in that, The scraper (12) is made of silicone.

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