Oil well fracturing flow-back liquid recycling and desanding device

Abstract

The utility model provides an oil well fracturing flow-back liquid recycling and desanding device which comprises a box body. And the cavity is formed in the box body, a driving motor is fixedly installed on the inner side face of the cavity, a rotating shaft is fixedly installed at the output end of the driving motor, and stirring blades are fixedly installed on the outer side face of the rotating shaft. According to the oil well fracturing flow-back liquid recycling and desanding device, the driving motor, the rotating shaft, the first vibrating plate, the second vibrating plate, the metal net, the limiting plate, the mounting frame, the limiting sleeve, the rotating plate, the cleaning brush and other structures are matched with one another, and when the device is used, the rotating shaft is driven to rotate through rotation of the driving motor; and a rotating shaft drives a second vibration plate to rotate, so that a first vibration plate is driven to rotate, a mounting frame and a metal net vibrate up and down, and therefore, the situation that the metal net is blocked due to the fact that gravel is clamped on the inner side face of the metal net is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fracturing fluid recovery in the process of oil field development, in particular to an oil well fracturing return liquid recovery and sand removal device. Background Art

[0002] With the increase in horizontal wells and the scale of transformation in recent years, the amount of fluid used for oil well fracturing and the amount of return fluid after fracturing have increased dramatically, resulting in huge consumption of water resources and a substantial increase in the cost of waste liquid treatment. In order to reduce the waste of water resources, the waste liquid will be recycled and reused. When treating the waste liquid, it is necessary to remove sand from the waste liquid, and thus a sand removal device will be used.

[0003] For example, in the patent application with publication number CN211078694U in the prior art, it includes a base, a waste liquid recovery pump, a waste liquid desander, a centrifugal separator, a water supply mechanism, a sand recoverer, a waste recoverer and a liquid recoverer; the waste liquid desander, the centrifugal separator, the water supply mechanism, the sand recoverer, the solid recoverer and the liquid recoverer are fixedly connected on the base respectively; the waste liquid recovery pump is connected to the liquid inlet of the waste liquid desander; the liquid outlet of the waste liquid desander is connected to the liquid inlet of the centrifugal separator, and the sand discharge port of the waste liquid desander is connected to the sand recoverer; the waste discharge port and the liquid outlet of the centrifugal separator are respectively connected to the waste recoverer and the liquid recoverer; the water supply mechanism is respectively connected to the upper part of the waste liquid desander and the centrifugal separator; and it also includes: an agitator and a controller. The utility model effectively realizes the separation and recovery of waste liquid by removing sand and separating solid and liquid from waste liquid, which is convenient for subsequent treatment.

[0004] When the waste liquid desander used in the device is in use, the sand and gravel are filtered and removed through the metal mesh. However, due to the different sizes of the sand and gravel, it is easy for the sand and gravel to get stuck inside the metal mesh, thereby causing the metal mesh to be blocked.

[0005] Therefore, it is necessary to provide an oil well fracturing return liquid recovery and sand removal device to solve the above technical problems. Utility Model Content

[0006] The utility model provides an oil well fracturing return liquid recovery and sand removal device, which solves the problem that sand and gravel are easily stuck inside a metal mesh, thereby causing blockage of the metal mesh.

[0007] In order to solve the above technical problems, the utility model provides an oil well fracturing return liquid recovery and sand removal device, comprising:

[0008] Box;

[0009] A cavity, wherein the cavity is opened inside the box body, a driving motor is fixedly mounted on the inner side of the cavity, a rotating shaft is fixedly mounted on the output end of the driving motor, and a stirring blade is fixedly mounted on the outer side of the rotating shaft;

[0010] A fixing ring, the fixing ring is fixedly mounted on the inner side of the box body, a feeding port is provided inside one end of the fixing ring, a guide plate is fixedly mounted at the bottom of the feeding port, a discharge port is provided on one side of the guide plate, and the discharge port is provided on the inner wall of the box body;

[0011] An installation frame, wherein the installation frame is arranged on the inner side surface of the fixing ring and is sleeved on the outer side surface of the rotating shaft, a metal mesh is fixedly installed inside the installation frame, and limit plates are fixedly installed on both ends of the installation frame, and the limit plates are slidably connected to the inner side surface of the slide groove, and a spring is fixedly installed on the bottom of the limit plate, and the bottom of the spring is fixedly installed on the bottom of the inner side surface of the slide groove, and a first vibration plate is fixedly installed on the bottom of the installation frame, and a second vibration plate is arranged on the bottom of the first vibration plate, the first vibration plate is sleeved on the outer side surface of the rotating shaft, and the second vibration plate is fixedly installed on the outer side surface of the rotating shaft.

[0012] Preferably, a limiting sleeve is fixedly installed on the top of the rotating shaft, rotating plates are fixedly installed on both sides of the limiting sleeve, a cleaning brush is fixedly installed on the bottom of the rotating plate, and the bottom of the cleaning brush is respectively arranged on the top of the metal mesh and the fixing ring.

[0013] Preferably, a discharge pipe is fixedly mounted on one side of the box body, the discharge pipe is arranged on one side of the discharge port, and a liquid outlet pipe is fixedly mounted on the other side of the box body.

[0014] Preferably, a liquid inlet pipe is fixedly installed on the top of the box body, and a material feed pipe is fixedly installed on one side of the box body.

[0015] Preferably, the output end of the feed pipe is arranged at the top of the metal mesh, and the input end of the feed pipe is arranged at the top of the discharge pipe.

[0016] Preferably, a door body is fixedly installed on the front side of the box body.

[0017] Preferably, an observation window is fixedly installed on the front side of the door body.

[0018] Compared with the related art, the oil well fracturing return liquid recovery and sand removal device provided by the utility model has the following beneficial effects:

[0019] The utility model provides an oil well fracturing return liquid recovery and sand removal device, which cooperates with each other through structures such as a driving motor, a rotating shaft, a first vibration plate, a second vibration plate, a metal mesh, a limit plate, a mounting frame, a limit sleeve, a rotating plate and a cleaning brush. When in use, the rotation of the driving motor drives the rotating shaft to rotate, so that the rotating shaft drives the second vibration plate to rotate, thereby driving the first vibration plate to rotate, so that the mounting frame and the metal mesh vibrate up and down, thereby preventing sand and gravel from being stuck on the inner side of the metal mesh, thereby causing the metal mesh to be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a first embodiment of an oil well fracturing flowback liquid recovery and sand removal device provided by the utility model;

[0021] Figure 2 for Figure 1 The schematic diagram of the internal structure of the box shown;

[0022] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0023] Figure 4 for Figure 2 An enlarged schematic diagram of part B is shown;

[0024] Figure 5 The utility model provides a structural schematic diagram of a second embodiment of an oil well fracturing flowback liquid recovery and sand removal device.

[0025] Numbers in the figure: 1. Box body, 11. Liquid inlet pipe, 12. Feed pipe, 13. Discharge pipe, 14. Liquid outlet pipe, 15. Discharge port, 16. Guide plate, 17. Cavity, 2. Drive motor, 21. Rotating shaft, 22. Stirring blade, 3. Fixed ring, 31. Discharge port, 32. Slide groove, 33. Spring, 4. Mounting frame, 41. Limit plate, 42. Metal mesh, 43. First vibration plate, 44. Second vibration plate, 5. Limit sleeve, 51. Rotating plate, 52. Cleaning brush, 6. Door body, 61. Observation window. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0027] First embodiment

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic structural diagram of a first embodiment of an oil well fracturing flowback liquid recovery and sand removal device provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the internal structure of the box shown; Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown; Figure 4 for Figure 2 The enlarged schematic diagram of part B is shown. An oil well fracturing flowback liquid recovery and sand removal device comprises: a box body 1;

[0029] A cavity 17, wherein the cavity 17 is opened inside the box body 1, a driving motor 2 is fixedly mounted on the inner side of the cavity 17, a rotating shaft 21 is fixedly mounted on the output end of the driving motor 2, and a stirring blade 22 is fixedly mounted on the outer side of the rotating shaft 21;

[0030] A fixing ring 3, the fixing ring 3 is fixedly mounted on the inner side of the box body 1, a feeding opening 31 is opened inside one end of the fixing ring 3, a guide plate 16 is fixedly mounted at the bottom of the feeding opening 31, a discharge opening 15 is arranged on one side of the guide plate 16, and the discharge opening 15 is opened on the inner wall of the box body 1;

[0031] The mounting frame 4 is arranged on the inner side surface of the fixing ring 3 and is sleeved on the outer side surface of the rotating shaft 21. A metal mesh 42 is fixedly installed inside the mounting frame 4. Limiting plates 41 are fixedly installed on both ends of the mounting frame 4. The limiting plates 41 are slidably connected to the inner side surface of the slide groove 32. A spring 33 is fixedly installed on the bottom of the limiting plate 41. The bottom of the spring 33 is fixedly installed on the bottom of the inner side surface of the slide groove 32. A first vibration plate 43 is fixedly installed on the bottom of the mounting frame 4. A second vibration plate 44 is arranged on the bottom of the first vibration plate 43. The first vibration plate 42 is sleeved on the outer side surface of the rotating shaft 21. The second vibration plate 44 is fixedly installed on the outer side surface of the rotating shaft 21.

[0032] A limiting sleeve 5 is fixedly installed on the top of the rotating shaft 21, and rotating plates 51 are fixedly installed on both sides of the limiting sleeve 5. A cleaning brush 52 is fixedly installed on the bottom of the rotating plate 51, and the bottom of the cleaning brush 52 is respectively arranged on the top of the metal mesh 42 and the fixing ring 3.

[0033] A discharge pipe 13 is fixedly mounted on one side of the box body 1 , and the discharge pipe 13 is arranged on one side of the discharge port 15 . A liquid outlet pipe 14 is fixedly mounted on the other side of the box body 1 .

[0034] A liquid inlet pipe 11 is fixedly installed on the top of the box body 1 , and a material feed pipe 12 is fixedly installed on one side of the box body 1 .

[0035] The output end of the feed pipe 12 is disposed at the top of the metal mesh 42 , and the input end of the feed pipe 42 is disposed at the top of the discharge pipe 13 .

[0036] The top and bottom of the spring 33 are fixedly mounted on the bottom of the limit plate 41 and the bottom of the inner side of the slide groove 32, respectively, so that the elasticity of the spring 33 always pulls the limit plate 41 to move downward, so that the limit plate 41 drives the installation frame 4 to move downward, and the first vibration plate 43 is always pressed on the top of the second vibration plate 44;

[0037] When the cleaning brush 52 rotates, it can remove the sand and gravel on the metal mesh 42 and the fixing ring 3, so that the sand and gravel enter the inner side of the discharge port 31 and then be discharged.

[0038] The working principle of the oil well fracturing return liquid recovery and sand removal device provided by the utility model is as follows:

[0039] When in use, the oil well fracturing return liquid enters the inner side of the box body 1 through the feed pipe 12, and then is discharged on the top of the metal mesh 42. Then the user starts the drive motor 2, so that the drive motor 2 drives the rotating shaft 21 to rotate, so that the rotating shaft 21 drives the limiting sleeve 5 to rotate, so that the limiting sleeve 5 drives the rotating plate 51 and the cleaning brush 52 to rotate, so that the cleaning brush 52 removes the sand and gravel on the metal mesh 42 to the top of the fixing ring 3, and then the sand and gravel are pushed by the cleaning brush 52 to enter the inner part of the discharge port 31. The sand and gravel are then discharged from the discharge port 15 and the discharge pipe 13 through the guide plate 16, and when the rotating shaft 21 rotates, the second vibration plate 44 is driven to rotate, so that the protrusion installed on the top of the second vibration plate 44 repeatedly enters and exits the groove opened at the bottom of the first vibration plate 43, so that the first vibration plate 43 moves up and down to vibrate, and then the first vibration plate 43 drives the mounting frame 4 and the metal mesh 42 to vibrate, so as to prevent sand and gravel from being stuck on the inner side of the metal mesh 42, thereby causing the metal mesh 42 to be blocked.

[0040] Compared with the related art, the oil well fracturing return liquid recovery and sand removal device provided by the utility model has the following beneficial effects:

[0041] By driving the motor 2, the rotating shaft 21, the first vibration plate 43, the second vibration plate 44, the metal mesh 42, the limit plate 41, the mounting frame 4, the limit sleeve 5, the rotating plate 51 and the cleaning brush 52 and other structures cooperating with each other, when in use, the rotation of the driving motor 2 drives the rotating shaft 21 to rotate, so that the rotating shaft 21 drives the second vibration plate 44 to rotate, thereby driving the first vibration plate 43 to rotate, so that the mounting frame 4 and the metal mesh 42 vibrate up and down, so as to prevent sand and gravel from getting stuck on the inner side of the metal mesh 42, thereby causing the metal mesh 42 to be blocked.

[0042] Second embodiment

[0043] Please refer to Figure 5 Based on the oil well fracturing return liquid recovery and sand removal device provided in the first embodiment of the present application, the second embodiment of the present application proposes another oil well fracturing return liquid recovery and sand removal device. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0044] Specifically, the second embodiment of the present application provides an oil well fracturing flowback liquid recovery and sand removal device. The difference is that, in the oil well fracturing flowback liquid recovery and sand removal device, a door body 6 is fixedly installed on the front of the box body 1.

[0045] An observation window 61 is fixedly mounted on the front of the door body 6 .

[0046] The working principle of the oil well fracturing return liquid recovery and sand removal device provided by the utility model is as follows:

[0047] When in use, the user can observe the inner side of the box body 1 through the observation window 61, and when the metal mesh 42 needs to be maintained, the user can also open the door body 6.

[0048] Compared with the related art, the oil well fracturing return liquid recovery and sand removal device provided by the utility model has the following beneficial effects:

[0049] The observation window 61 and the door body 6 facilitate the user to observe and maintain the interior of the box body 1 during use, thereby facilitating the user's use.

[0050] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An oil well fracturing flowback liquid recovery and sand removal device, characterized in that: include: Box; A cavity, wherein the cavity is opened inside the box body, a driving motor is fixedly mounted on the inner side of the cavity, a rotating shaft is fixedly mounted on the output end of the driving motor, and a stirring blade is fixedly mounted on the outer side of the rotating shaft; A fixing ring, the fixing ring is fixedly mounted on the inner side of the box body, a feeding port is provided inside one end of the fixing ring, a guide plate is fixedly mounted at the bottom of the feeding port, a discharge port is provided on one side of the guide plate, and the discharge port is provided on the inner wall of the box body; A slide groove, wherein the slide groove is arranged on one side of the fixing ring; An installation frame, wherein the installation frame is arranged on the inner side surface of the fixing ring and is sleeved on the outer side surface of the rotating shaft, a metal mesh is fixedly installed inside the installation frame, and limit plates are fixedly installed on both ends of the installation frame, and the limit plates are slidably connected to the inner side surface of the slide groove, and a spring is fixedly installed on the bottom of the limit plate, and the bottom of the spring is fixedly installed on the bottom of the inner side surface of the slide groove, and a first vibration plate is fixedly installed on the bottom of the installation frame, and a second vibration plate is arranged on the bottom of the first vibration plate, the first vibration plate is sleeved on the outer side surface of the rotating shaft, and the second vibration plate is fixedly installed on the outer side surface of the rotating shaft.

2. The oil well fracturing flowback liquid recovery and sand removal device according to claim 1, characterized in that: A limiting sleeve is fixedly installed on the top of the rotating shaft, rotating plates are fixedly installed on both sides of the limiting sleeve, a cleaning brush is fixedly installed on the bottom of the rotating plate, and the bottom of the cleaning brush is respectively arranged on the top of the metal mesh and the fixing ring.

3. The oil well fracturing flowback liquid recovery and sand removal device according to claim 1, characterized in that: A discharge pipe is fixedly installed on one side of the box body, and the discharge pipe is arranged on one side of the discharge port. A liquid outlet pipe is fixedly installed on the other side of the box body.

4. The oil well fracturing flowback liquid recovery and sand removal device according to claim 3, characterized in that: A liquid inlet pipe is fixedly installed on the top of the box body, and a material feed pipe is fixedly installed on one side of the box body.

5. The oil well fracturing flowback liquid recovery and sand removal device according to claim 4, characterized in that: The output end of the feed pipe is arranged at the top of the metal mesh, and the input end of the feed pipe is arranged at the top of the discharge pipe.

6. The oil well fracturing flowback liquid recovery and sand removal device according to claim 1, characterized in that: A door body is fixedly installed on the front side of the box body.

7. The oil well fracturing flowback liquid recovery and sand removal device according to claim 6, characterized in that: An observation window is fixedly installed on the front side of the door body.

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