Sewage treatment equipment for water injection well in oilfield development

Abstract

The utility model discloses sewage treatment equipment for a water injection well in oilfield development, and relates to the technical field of sewage treatment. According to the water injection well sewage treatment equipment for oilfield development, by arranging a pressing strip, sponges, a water-permeable partition plate, a sliding column, a first spring and a first connecting frame, the three sponges can be extruded at the same time only by pressing the first connecting frame downwards, the sponges are prevented from being wetted and rotted more quickly and conveniently, and by arranging a motor, a screw and a pressing ring on the inner wall of the box body, the water injection well sewage treatment equipment is more convenient to use. The two first connecting frames are simultaneously pressed by the pressing rings, so that the six pressing strips in two groups can be simultaneously extruded to discharge water from the sponges, manual extrusion is not needed, all the sponges can be extruded to discharge water in one step, and more time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to sewage treatment equipment for water injection wells in oil field development. Background Art

[0002] my country has a large land area and a wide distribution of oil fields. Oilfield wastewater is a large and widespread source of pollution. After being treated to meet the standards, most of this wastewater needs to be injected back into the formation as mining injection water, and a small part is discharged into the natural environment. The treatment of oilfield wastewater is of great significance for protecting ecological balance and promoting sustainable development.

[0003] According to the existing Chinese patent CN 211419784 U, a wastewater treatment device for oilfield development water injection wells includes a treatment box, a power box is fixedly connected to the bottom of the treatment box, a motor is fixedly connected to the inside of the power box, the output end of the motor is fixedly connected to a rotating shaft through a coupling, a first bearing is inlaid at the bottom of the treatment box, the inner ring of the first bearing is fixedly sleeved with the surface of the rotating shaft, and the end of the rotating shaft away from the motor is penetrated by the first bearing and fixedly connected to a filter box. The utility model achieves the effect of filtering sewage by setting a treatment box, a power box, a motor, a rotating shaft, a first bearing, a filter box, a metal pipe, a second bearing, a connecting pipe, a filter screen, a partition, a sponge block, a pressure plate, a connecting rod, a handle, an activated carbon filter plate, a counterweight block, a water hole, a through hole and a drain pipe, and at the same time uses centrifugal force to make the sewage filtering effect better. Although the device utilizes centrifugal force and filter screen, sponge block and activated carbon filter plate to filter sewage to achieve better filtering effect, the sponge block of the device will absorb sewage, and the sponge blocks need to be squeezed and drained one by one using a handle to prevent the sponge blocks from getting wet and rotting. Such operation is very inconvenient and reduces work efficiency. In addition, if the filter screen and activated carbon filter plate of the device are not replaced for a long time, the filtering effect will be affected.

[0004] Therefore, it is necessary to provide a kind of oil field development water injection well sewage treatment equipment to solve the above-mentioned technical problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In order to solve the above technical problems, the utility model provides a sewage treatment device for oil field development water injection wells.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a sewage treatment equipment for water injection wells in oil field development, including a box body, a top cover is installed above the box body, the inner wall of the box body is rotatably connected to a filter box through a bearing, the top center of the filter box is fixedly connected to a water inlet pipe, one side of the lower end of the box body is fixedly connected to a water outlet pipe, the outer wall of the filter box is symmetrically fixedly connected to two groups of filter channels, the filter channels are distributed from top to bottom on the outer wall of the filter box as a group of three, a plug hole is provided above the filter channel, the end of the inner wall of the filter channel close to the filter box is plugged with a water filter component through the plug hole, a sponge is installed at the end of the inner wall of the filter channel away from the filter box, the filter channel is fixedly connected with water-permeable partitions on both sides of the sponge, a synchronous extrusion component for simultaneously squeezing all sponges to release accumulated water is installed on the inner wall of the box body, a synchronous replacement component for simultaneously replacing the water filter components in a group of filter channels is installed above the filter box, and a snap assembly for positioning the synchronous replacement component on the filter box is installed above the filter box.

[0009] Preferably, the synchronous extrusion assembly includes a pressure strip, a pressure strip is fixedly connected above the sponge, the pressure strip is slidably connected to the permeable partitions on both sides of the sponge, a sliding column is fixedly connected above the pressure strip, the sliding column is slidably connected to the filter channel through a first sliding hole, the upper ends of the three sliding columns on the same side are fixedly connected to a first connecting frame, the upper outer wall of the upper end of the sliding column at the top is fixedly connected to a first spring, the other end of the first spring is fixed to the outer wall of the filter channel at the top, the inner wall of the box is slidably connected to a pressure ring, the pressure ring is located directly above the first connecting frame, the upper end of the inner wall of the box is fixed with a motor, the output end of the motor is fixed with a screw threadedly connected to the pressure ring through a threaded hole, and the screw is rotatably connected to the inner wall of the box through a bearing.

[0010] Preferably, the water filtration assembly consists of an activated carbon plate and a filter screen fixed to each other.

[0011] Preferably, the synchronous replacement assembly includes a second connection frame, and a second connection frame is fixed on the top of the three water filter assemblies on the same side.

[0012] Preferably, the buckle assembly includes a socket, the top of the filter box is symmetrically fixedly connected with the socket, the second connecting frame is fixedly connected with a rod close to the filter box, the rod is plugged into the socket, a slot is provided on one side of the rod, and an inner wall of the socket close to the slot is slidably connected with a block through a second sliding hole, the block is snap-fitted with the slot, a second spring is sleeved on the outer side of one end of the block facing away from the slot, one end of the second spring is fixed to the outer wall of the block, and the other end is fixed to the outer wall of the socket.

[0013] Preferably, slide rails are fixed at equal intervals on the inner wall of the box body, and the pressure ring is slidably connected to the slide rails via a slide groove.

[0014] (III) Beneficial effects

[0015] The utility model provides a sewage treatment device for water injection wells in oil field development. Compared with the prior art, it has the following beneficial effects:

[0016] 1. The application sets a pressure strip, a sponge, a water-permeable partition, a sliding column, a first spring and a first connecting frame, so that only the first connecting frame needs to be pressed down to squeeze three sponges at the same time, which is more quick and convenient to prevent the sponges from getting wet and rotting. Then, a motor, a screw and a pressing ring are set on the inner wall of the box, so that the pressing ring presses down the two first connecting frames at the same time, so that the two groups of six pressure strips can be squeezed at the same time to make the sponges drain water, without manual squeezing, and all sponges can be squeezed and drained in one step, which is more time-saving and labor-saving;

[0017] 2. This application sets up snap-on components and synchronous replacement components, so that a group of three water filter components can be replaced at a time. The operation is simple and quick, and the water filtering effect is better guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the compression ring structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the filter structure of the utility model;

[0021] Figure 4 It is an enlarged schematic diagram of the C zone structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the motor structure of the utility model;

[0023] Figure 6 It is an enlarged schematic diagram of the structure of area A of the utility model;

[0024] Figure 7 This is a schematic diagram of the socket structure of the utility model;

[0025] Figure 8 This is a schematic diagram of the filter structure of the utility model;

[0026] Fig. 9 It is an enlarged schematic diagram of the structure of area B of the utility model;

[0027] Fig.10 This is a schematic diagram of the water-permeable baffle structure of the utility model;

[0028] Fig.11 This is a schematic diagram of the jack structure of the utility model.

[0029] Numbers in the figure: 1. Box body; 2. Filter box; 3. Water inlet pipe; 4. Water outlet pipe; 5. Filter channel; 6. Socket; 7. Sponge; 8. Water-permeable partition; 9. Pressure strip; 10. Sliding column; 11. First connecting frame; 12. First spring; 13. Pressing ring; 14. Activated carbon plate; 15. Filter screen; 16. Second connecting frame; 17. Socket; 18. Insert rod; 19. Card slot; 20. Card block; 21. Second spring; 22. Slide rail; 23. Top cover; 24. Motor; 25. Screw. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The utility model provides two technical solutions:

[0032] Figures 1 to 5 The first embodiment is shown: a sewage treatment equipment for oilfield development injection wells, comprising a box body 1, a top cover 23 is installed above the box body 1, a filter box 2 is rotatably connected to the inner wall of the box body 1 through a bearing, a water inlet pipe 3 is fixedly connected to the top center of the filter box 2, a water outlet pipe 4 is fixedly connected to one side of the lower end of the box body 1, two groups of filter channels 5 are symmetrically fixedly connected to the outer wall of the filter box 2, three filter channels 5 are distributed from top to bottom on the outer wall of the filter box 2 in a group, a plug hole 6 is opened above the filter channel 5, one end of the inner wall of the filter channel 5 close to the filter box 2 is plugged with a water filter component through the plug hole 6, a sponge 7 is installed at one end of the inner wall of the filter channel 5 away from the filter box 2, and a permeable partition 8 is fixedly connected to both sides of the sponge 7 of the filter channel 5, a synchronous extrusion component for simultaneously squeezing all sponges 7 to release accumulated water is installed on the inner wall of the box body 1, a synchronous replacement component for simultaneously replacing the water filter components in a group of filter channels 5 is installed above the filter box 2, and a snap assembly for positioning the synchronous replacement component on the filter box 2 is installed above the filter box 2.

[0033] The synchronous extrusion assembly includes a pressure strip 9, which is fixedly connected to the top of the sponge 7. The pressure strip 9 is slidably connected to the water-permeable partitions 8 on both sides of the sponge 7. A sliding column 10 is fixedly connected to the top of the pressure strip 9. The sliding column 10 is slidably connected to the filter 5 through a first sliding hole. The upper ends of the three sliding columns 10 on the same side are fixedly connected to a first connecting frame 11, and the upper outer wall of the upper end of the uppermost sliding column 10 is fixedly connected to a first spring 12. The other end of the first spring 12 is fixed to the outer wall of the uppermost filter 5. A pressure ring 13 is slidably connected to the inner wall of the box body 1. The pressure ring 13 is located directly above the first connecting frame 11. A motor 24 is fixed to the upper end of the inner wall of the box body 1. A screw 25 threadedly connected to the pressure ring 13 through a threaded hole is fixed to the output end of the motor 24. The screw 25 is rotatably connected to the inner wall of the box body 1 through a bearing.

[0034] Slide rails 22 are fixed at equal intervals on the inner wall of the box body 1, and the pressure ring 13 is slidably connected to the slide rails 22 via a slide groove.

[0035] This application sets a pressure strip 9, a sponge 7, a water-permeable partition 8, a sliding column 10, a first spring 12 and a first connecting frame 11, so that only by pressing down the first connecting frame 11, three sponges 7 can be squeezed at the same time, which is faster and more convenient to prevent the sponges 7 from getting damp and rotting. Then, a motor 24, a screw 25 and a pressing ring 13 are set on the inner wall of the box body 1, so that the pressing ring 13 presses down and presses down the two first connecting frames 11 at the same time, so that the two groups of six pressure strips 9 can be squeezed at the same time to make the sponges 7 drain water, without manual squeezing, and all the sponges 7 can be squeezed and drained in one step, which is more time-saving and labor-saving.

[0036] Figures 6 to 11 A second embodiment is shown, which mainly differs from the first embodiment in that the water filter assembly is composed of an activated carbon plate 14 and a filter screen 15 fixed to each other.

[0037] The synchronous replacement assembly includes a second connection frame 16, and a second connection frame 16 is fixed on the top of the three water filter assemblies on the same side.

[0038] The buckle assembly includes a socket 17, which is symmetrically fixedly connected to the top of the filter box 2, and a plug rod 18 is fixedly connected to the second connecting frame 16 near the filter box 2. The plug rod 18 is plugged into the socket 17, and a slot 19 is provided on one side of the plug rod 18. A card block 20 is slidably connected to the inner wall of the socket 17 near the slot 19 through a second sliding hole, and the card block 20 is snap-fitted into the slot 19. A second spring 21 is sleeved on the outer side of one end of the card block 20 facing away from the slot 19, and one end of the second spring 21 is fixed to the outer wall of the card block 20, and the other end is fixed to the outer wall of the socket 17.

[0039] This application sets up a snap-on component and a synchronous replacement component, so that a group of three water filter components can be replaced at a time. The operation is simple and quick, and the water filtering effect is better guaranteed.

[0040] Working principle:

[0041] The sewage enters the filter box 2 from the water inlet pipe 3, and then the filter box 2 is rotated at high speed for centrifugation, and the sewage is thrown into the filter channel 5. The sewage is filtered through the filter screen 15, the activated carbon filter plate and the sponge 7 in turn, and then flows into the box body 1 and is discharged from the water outlet pipe 4. The filter screen 15 blocks particulate matter, the activated carbon filter plate absorbs harmful substances, and the sponge 7 absorbs suspended matter.

[0042] After the filtration is completed, the driving motor 24 rotates the screw 25, and the screw 25 drives the pressure ring 13 to move downward along the slide rail 22 on the inner wall of the box body 1, and the pressure ring 13 presses down on the two first connecting frames 11, and continues to squeeze the first spring 12 downward. The first connecting frame 11 drives the slide column 10 to move downward in the first slide hole, so that the pressure strip 9 is pressed down to squeeze out the accumulated water from the sponge 7 to prevent the sponge 7 from getting damp and rotting. After the squeezing is completed, the motor 24 is used to drive the pressure ring 13 to reset upward, and the first spring 12 rebounds to drive the slide column 10 upward, and the pressure strip 9 moves up accordingly, and the sponge 7 rebounds.

[0043] After long-term use and multiple filtrations, the filter screen 15 and the activated carbon filter plate need to be replaced regularly to ensure the water filtering effect. The replacement methods of the water filtering components on the two groups of filter channels 5 are the same. The following takes the replacement of the water filtering components on one group of filter channels 5 as an example: open the top cover 23, pull the block 20 in the direction away from the card slot 19, the second spring 21 is stretched, and at the same time the block 20 is pulled out of the card slot 19 and enters the inner wall of the second slide hole, then the second connecting frame 16 can be lifted upward, and the block 20 can be released after the second connecting frame 16 is lifted, and the second connecting frame 16 drives the water filtering component to move upward, and the filter screen 15 and the activated carbon filter plate are lifted upward. The filter channel 5 is pulled out through the socket 6, and then a group of three water filter components can be pulled out by slightly shifting it to the side close to the first connecting frame 11; when replacing, a new second connecting frame 16 is used, the water filter component is aligned with the socket 6 above the filter channel 5, and the plug rod 18 is aligned with the socket 17, the pull rod spring is pulled to stretch, the block 20 is moved to the inner wall of the second slide hole again, and the plug rod 18 is inserted into the socket 17. At the same time, a group of three water filter components are embedded in the filter channel 5 through the socket 6. At this time, the block 20 is released and the block 20 is inserted into the slot 19, so that the synchronous replacement component can be positioned so that it can move stably with the filter box 2.

[0044] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device for water injection wells in oil field development, comprising a box body (1), a top cover (23) is installed above the box body (1), a filter box (2) is rotatably connected to the inner wall of the box body (1) through a bearing, an inlet pipe (3) is fixedly connected to the center of the top of the filter box (2), and a water outlet pipe (4) is fixedly connected to one side of the lower end of the box body (1), characterized in that: The outer wall of the filter box (2) is symmetrically fixedly connected with two groups of filter channels (5), and the filter channels (5) are arranged in groups of three from top to bottom on the outer wall of the filter box (2). A plug hole (6) is provided above the filter channels (5), and the end of the inner wall of the filter channel (5) close to the filter box (2) is plugged with a water filter component through the plug hole (6). The end of the inner wall of the filter channel (5) away from the filter box (2) is installed with a sponge (7), and the filter channel (5) is fixedly connected with a water-permeable partition plate (8) on both sides of the sponge (7). The inner wall of the box body (1) is installed with a synchronous squeezing component for simultaneously squeezing all sponges (7) to release accumulated water, and the upper part of the filter box (2) is installed with a synchronous replacement component for simultaneously replacing the water filter components in a group of filter channels (5), and the upper part of the filter box (2) is installed with a buckle component for positioning the synchronous replacement component on the filter box (2).

2. The oilfield development water injection well sewage treatment equipment according to claim 1 is characterized by: The synchronous extrusion assembly comprises a pressure strip (9), the pressure strip (9) is fixedly connected above the sponge (7), the pressure strip (9) is slidably connected to the water-permeable baffles (8) on both sides of the sponge (7), a sliding column (10) is fixedly connected above the pressure strip (9), the sliding column (10) is slidably connected to the filter channel (5) through a first sliding hole, the upper ends of three sliding columns (10) on the same side are fixedly connected to a first connecting frame (11), and the upper end outer wall of the uppermost sliding column (10) is fixedly connected to a first connecting frame (11). A spring (12), the other end of the first spring (12) is fixed to the outer wall of the uppermost filter channel (5), the inner wall of the box body (1) is slidably connected with a pressure ring (13), the pressure ring (13) is located directly above the first connection frame (11), a motor (24) is fixed to the upper end of the inner wall of the box body (1), the output end of the motor (24) is fixed with a screw (25) threadedly connected to the pressure ring (13) through a threaded hole, and the screw (25) is rotatably connected to the inner wall of the box body (1) through a bearing.

3. The oilfield development water injection well sewage treatment equipment according to claim 1 is characterized by: The water filter assembly is composed of an activated carbon plate (14) and a filter screen (15) fixed to each other.

4. The oilfield development water injection well sewage treatment equipment according to claim 1 is characterized by: The synchronous replacement assembly comprises a second connection frame (16), and a second connection frame (16) is fixed on the top of the three water filter assemblies on the same side.

5. The oilfield development water injection well sewage treatment equipment according to claim 4 is characterized by: The buckle assembly comprises a socket (17), the top of the filter box (2) is symmetrically fixedly connected with the socket (17), the second connection frame (16) is fixedly connected with an insertion rod (18) on a side close to the filter box (2), the insertion rod (18) is plugged into the socket (17), a card slot (19) is provided on one side of the insertion rod (18), a card block (20) is slidably connected to the inner wall of the side of the socket (17) close to the card slot (19) through a second sliding hole, the card block (20) is carded into the card slot (19), a second spring (21) is sleeved on the outer side of one end of the card block (20) away from the card slot (19), one end of the second spring (21) is fixed to the outer wall of the card block (20), and the other end is fixed to the outer wall of the socket (17).

6. The oilfield development water injection well sewage treatment equipment according to claim 2 is characterized by: Slide rails (22) are fixed at equal intervals on the inner wall of the box body (1), and the pressure ring (13) is slidably connected to the slide rails (22) via a slide groove.

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