Oilfield water injection development throttling water distribution device internally provided with filtering unit

Abstract

The utility model discloses an oil field water injection development throttling water distribution device internally provided with a filtering unit, which relates to the technical field of oil field development and comprises a throttling valve and a filtering pipe, the filtering pipe is fixed on one side of the throttling valve, an operation box is fixed on one side of the filtering pipe, and a rotating shaft is rotatably connected in the operation box. Through the arrangement of the frame with the arc-shaped structure and the filter screen, fluid can be guided to flow along a curved surface, turbulent flow and flow separation are reduced, formation of a local high-speed area is avoided, the filter area can be increased, and the filter is more suitable for oilfield water injection scenes with high sand content and high suspended matter content; a motor is started to drive a half-tooth bevel gear to be in engaged connection with a first bevel gear and a second bevel gear in turn, so that reciprocating half rotation of a rotating shaft is achieved, and a scraper is driven to clean impurities on the surface of a filter screen.

Description

TECHNICAL FIELD

[0001] The utility model relates to oilfield development technical field especially relates to a throttle water distribution device of oilfield water injection development with filter unit. BACKGROUND

[0002] The throttle water distribution device in oilfield water injection development is the key equipment for controlling and regulating the water injection volume of injection well, the main role of the device is to ensure the water volume distribution of each injection well by regulating the water injection volume, so as to improve the oilfield recovery, in the injection well, the device controls the flow of injected water accurately through the built-in throttle element (such as throttle valve, needle valve, etc.).

[0003] Chinese patent authorized announcement No. CN 209908475 U discloses a kind of throttle water distribution device of oilfield water injection development, including throttle water distribution device main body, movable seat, throttle pipe, water outlet, total valve and water inlet, the bottom of throttle water distribution device main body is movably connected with movable seat, the top of movable seat is connected with throttle pipe, the inside left side of throttle pipe is fixedly connected with spring column, the top of spring column is movably connected with throttle plate, throttle plate, reach self-regulation water flow rate reaches the role of throttling, it embodies the practicability of the utility model, filter screen, water in throttle pipe can be effectively filtered by filter screen, it embodies the filterability of the utility model, movable seat, user can be quickly docked with it by clamping strip, quickly install movable seat and throttle pipe, it embodies the installation of the utility model, water distribution baffle, so that water is stored between fixed plate and water distribution baffle to achieve water distribution effect, it embodies the practicability of the utility model, has extensive development prospect in future.

[0004] The prior art scheme has the following disadvantages: the filtering of water flow is relatively simple during use, the use effect in oilfield water injection scene is poor, and subsequent cleaning is inconvenient, so there is a certain optimization space, and therefore a throttle water distribution device of oilfield water injection development with filter unit needs to be designed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a throttle water distribution device of oilfield water injection development with filter unit to solve the problems of poor filtering effect and inconvenient cleaning in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a throttle water distribution device of oilfield water injection development with filter unit, including throttle valve, filter pipe, the side of throttle valve is fixed with filter pipe;

[0007] An operating box is fixed to one side of the filter tube, and a rotating shaft is rotatably connected inside the operating box. One end of the rotating shaft extends into the filter tube and connects to the inner wall of the filter tube. A first bevel gear and a second bevel gear are fixed to the outside of the rotating shaft. A motor is fixed inside the operating box, and a half-tooth bevel gear is fixed to the outside of the motor output shaft. The half-tooth bevel gear meshes with the first bevel gear and the second bevel gear respectively. A connecting rod is fixed to the outside of the rotating shaft, and a scraper is fixed to the outside of the connecting rod. A discharge port is provided at the bottom of the filter tube, and a fixing rod is fixed to one side inside the discharge port. A spring is sleeved on the outside of the fixing rod. A fixing block is fixed to one side of the fixing rod, and a baffle is fixed to the top of the fixing block. A frame is fixed inside the filter tube, and a filter screen is fixed inside the frame.

[0008] Preferably, the bottom end of the filter tube is connected to a collection box, and the interior of the collection box is connected to the discharge port.

[0009] Preferably, guide blocks are fixed on both sides of the top of the collection box, and guide grooves are provided on both sides of the bottom of the filter tube, and the guide grooves are connected to the guide blocks.

[0010] Preferably, the width of the guide block matches the width of the guide groove, and the cross-sections of both the guide block and the guide groove are convex.

[0011] Preferably, a separation plate is fixed inside the collection box, and separation holes are evenly arranged inside the separation plate.

[0012] Preferably, the baffle has a triangular cross-section, and one side of the baffle is in contact with the bottom end of the frame.

[0013] Preferably, the top section of the scraper is set in an inclined arc shape, and the scraper is in contact with the filter screen.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the oilfield water injection development water-saving distribution device with built-in filter unit realizes the function of easy filtration and cleaning;

[0015] By setting the frame and filter screen with arc structure, fluid can be guided to flow along the curved surface, reducing turbulence and flow separation, avoiding the formation of local high-speed area, and increasing the filtering area, which is more suitable for high-sand and high-suspended solids oilfield water injection scenes, and when the filter screen needs to be cleaned, the motor drives the half-toothed gear to mesh with the first and second bevel gears in turn, that is, the reciprocating half-rotation of the rotating shaft is realized, that is, the scraper can clean the impurities on the surface of the filter screen, when the scraper moves down and contacts the baffle, it drives the baffle to move outward and makes the fixed block extrude the spring to open the discharge port, so that the self-discharging purpose can be realized while cleaning, and the discharge port is automatically closed when not in use, maintaining normal use, thereby reducing the time and labor of manual cleaning, and reducing the damage of the throttle valve caused by impurities for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 It is a front view of the structure of the present application.

[0018] Figure 2 It is a front view of the structure of the present application.

[0019] Figure 3 It is a top view of the structure of the present application.

[0020] Figure 4 It is a three-dimensional structure diagram of the filter tube of the present application.

[0021] Figure 5 It is a three-dimensional structure diagram of the frame of the present application.

[0022] Explanation of reference numerals in the drawings: 1, throttle valve; 2, filter tube; 3, frame; 4, connecting rod; 5, baffle; 6, collection box; 7, separation plate; 8, spring; 9, fixed block; 10, fixed rod; 11, filter screen; 12, scraper; 13, operation box; 14, motor; 15, first bevel gear; 16, guide block; 17, guide groove; 18, rotating shaft; 19, half-toothed bevel gear; 20, second bevel gear; 21, discharge port. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Please refer to Figures 1-5 An embodiment provided by the utility model: an oilfield water injection development throttling water distribution device with a filtering unit, comprising a throttle valve 1, a filter pipe 2;

[0025] The bottom end of the filter pipe 2 is connected with a collection box 6, the inside of the collection box 6 is communicated with the discharge port 21, the two sides of the top end of the collection box 6 are fixed with guide blocks 16, the two sides of the bottom end of the filter pipe 2 are provided with guide grooves 17, the guide grooves 17 are connected with the guide blocks 16, the width of the guide blocks 16 is matched with the width of the guide grooves 17, the cross sections of the guide blocks 16 and the guide grooves 17 are provided in a convex shape, the inside of the collection box 6 is fixed with a separation plate 7, and the inside of the separation plate 7 is uniformly provided with separation holes;

[0026] Specifically, as shown in Figure 1 and Figure 2 shown, when in use, the impurities cleaned can be collected by the collection box 6, the solid-liquid separation is facilitated by the separation plate 7, and the collection box 6 is assembled and disassembled by the guide blocks 16 and the guide grooves 17;

[0027] The throttle valve 1 is fixed with the filter pipe 2 on one side, the filter pipe 2 is fixed with an operation box 13 on one side, the inside of the operation box 13 is rotatably connected with a rotating shaft 18, one end of the rotating shaft 18 extends to the inside of the filter pipe 2 and is connected with the inner wall of the filter pipe 2, the outer side of the rotating shaft 18 is fixed with a first bevel gear 15 and a second bevel gear 20, the inside of the operation box 13 is fixed with a motor 14, the outer side of the output shaft of the motor 14 is fixed with a half-tooth bevel gear 19, the half-tooth bevel gear 19 is meshingly connected with the first bevel gear 15 and the second bevel gear 20 respectively, the outer side of the rotating shaft 18 is fixed with a connecting rod 4, and the outer side of the connecting rod 4 is fixed with a scraper 12;

[0028] The top end cross section of the scraper 12 is provided in an inclined arc shape, and the scraper 12 is in contact with the filter screen 11;

[0029] Specifically, as shown in Figure 1 shown, when in use, the top end cross section of the scraper 12 is provided in an inclined arc shape, which can facilitate the cleaning and guiding of the impurities;

[0030] The bottom of the filter tube 2 is provided with a discharge port 21, and a fixing rod 10 is fixed on one side of the discharge port 21. A spring 8 is sleeved on the outside of the fixing rod 10. A fixing block 9 is fixed on one side of the fixing rod 10, and a baffle 5 is fixed on the top of the fixing block 9.

[0031] The cross-section of the baffle 5 is triangular, and one side of the baffle 5 is in contact with the bottom of the frame 3.

[0032] Specifically, such as Figure 1 As shown, when in use, the cross-section of the baffle 5 is triangular, which makes it easy for one end to contact the scraper 12 and for the other end to guide the water flow.

[0033] A frame 3 is fixed inside the filter tube 2, and a filter screen 11 is fixed inside the frame 3.

[0034] Working principle: When this utility model is in use, the water first flows through the arc-shaped filter screen 11, which can guide the fluid to flow along the curved surface, reduce turbulence and flow separation, avoid the formation of local high-speed zones, and increase the filtration area. It is more suitable for oilfield water injection scenarios with high sand content and high suspended solids. When cleaning the filter screen 11, the start motor 14 drives the half-tooth bevel gear 19 to mesh with the first bevel gear 15 and the second bevel gear 20 in turn, which realizes the reciprocating half-rotation of the rotating shaft 18. This drives the scraper 12 to clean the impurities on the surface of the filter screen 11. When the scraper 12 moves down and contacts the baffle 5, it drives the baffle 5 to move outward and causes the fixing block 9 to squeeze the spring 8 to open the discharge port 21. Thus, it can achieve the purpose of self-discharge while cleaning, and automatically close the discharge port 21 when not in use to maintain normal operation.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0037] Finally, it should be noted that the above examples are intended to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An oil field water injection development throttling water distribution device with a filtering unit, comprising a throttle valve (1) and a filter pipe (2), wherein the throttle valve (1) is fixed with the filter pipe (2) on one side. characterized in that One side of the filter pipe (2) is fixed with an operation box (13), and a rotating shaft (18) is rotatably connected inside the operation box (13), one end of the rotating shaft (18) extends into the inside of the filter pipe (2) and is connected with the inner wall of the filter pipe (2), a first bevel gear (15) and a second bevel gear (20) are fixed on the outside of the rotating shaft (18), a motor (14) is fixed inside the operation box (13), a half-tooth bevel gear (19) is fixed on the output shaft of the motor (14), the half-tooth bevel gear (19) is meshingly connected with the first bevel gear (15) and the second bevel gear (20) respectively, a connecting rod (4) is fixed on the outside of the rotating shaft (18), and a scraper (12) is fixed on the outside of the connecting rod (4), a discharge port (21) is arranged at the bottom of the inside of the filter pipe (2), a fixed rod (10) is fixed on one side of the inside of the discharge port (21), a spring (8) is sleeved on the outside of the fixed rod (10), a fixed block (9) is fixed on one side of the fixed rod (10), a baffle (5) is fixed on the top of the fixed block (9), a frame (3) is fixed in the filter pipe (2), and a filter screen (11) is fixed in the frame (3).

2. The water injection development throttling and distributing device with a filtering unit inside according to claim 1, characterized in that: The bottom of the filter pipe (2) is connected with a collection box (6), and the inside of the collection box (6) is connected with the discharge port (21).

3. The water injection development throttle water distribution device with a filter unit inside according to claim 2, characterized in that: Both sides of the top of the collection box (6) are fixed with guide blocks (16), both sides of the bottom of the filter pipe (2) are provided with guide grooves (17), and the guide grooves (17) are connected with the guide blocks (16).

4. The water injection development throttle water distribution device with a built-in filter unit according to claim 3, characterized in that: The width of the guide block (16) matches the width of the guide groove (17), and the cross section of the guide block (16) and the guide groove (17) is convex.

5. The water injection development throttle water distribution device with a filter unit inside according to claim 2, characterized in that: A separation plate (7) is fixed in the collection box (6), and separation holes are uniformly arranged in the inside of the separation plate (7).

6. The water injection development throttle water distribution device with a filter unit inside according to claim 1, characterized in that: The cross section of the baffle (5) is triangular, and one side of the baffle (5) is in contact with the bottom of the frame (3).

7. The water injection development throttle water distribution device with a filter unit inside according to claim 1, characterized in that: The top cross section of the scraper (12) is arranged in an inclined arc shape, and the scraper (12) is in contact with the filter screen (11).

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