Wellhead operation overflow sewage real-time reinjection device

Abstract

The utility model discloses a wellhead operation overflow sewage real-time reinjection device which comprises a treatment box, the treatment box is provided with a sewage port and a reinjection port, and a left collection filter frame and a right collection filter frame are arranged on the left wall and the right wall in the treatment box respectively. A turnover filtering device is arranged in the treatment box and comprises a turnover driving part and a filtering and collecting plate group; the overturning driving part is used for driving the filtering plates in the filtering and collecting plate group to rotate, so that the left end of the filtering and collecting plate group can be right above the left collecting filtering frame, and the right end of the filtering and collecting plate group can be right above the right collecting filtering frame. According to the filter plate, sundries on the surface of the filter plate can be cleaned and collected more sufficiently and conveniently, the continuous working capacity of the filter plate is ensured to a certain extent, and the sewage treatment and reinjection efficiency is more ideal.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield water treatment, in particular to a real-time reinjection device for overflow sewage from wellhead operations. Background Art

[0002] During the oil and gas well production process, wastewater reinjection collects and treats the wastewater overflowing from the wellhead, and then injects it back into the ground in real time to reduce the impact on the environment.

[0003] In the existing sewage reinjection process, a filter screen is set to filter out debris from the sewage. Debris is easily accumulated on the surface of the filter plate, resulting in reduced filtration efficiency or even blockage. The staff is required to disassemble and remove the filter plate, clean it, and then replace it. The operation is cumbersome and has a great impact on the efficiency of the filtration treatment. Therefore, a real-time reinjection device for overflow sewage from wellhead operations is needed to solve the above problems.

[0004] Publication (announcement) number: CN217677103U, discloses a wastewater reinjection device for oil field development, which filters out impurities in the wastewater through a filter plate, and after the wastewater enters the interior of the collecting tank, the wastewater and the purifier are evenly mixed through the rotation of the stirring blade, and the rotation of the impeller can make the rack move back and forth left and right by utilizing the connecting rod, and the distance between the upper magnetic block and the lower end magnetic block of the striking rod changes, so that the striking rod can move back and forth up and down, and the vibration generated by the up and down reciprocating movement of the striking rod when it strikes the filter plate can shake the attached garbage off to the sewage outlet and be discharged outward.

[0005] The filter plate of the prior art is in a fixed state and cannot be changed in angle, and the impurity removal effect on the filter plate is not as good as that of the utility model.

[0006] Publication (announcement) number: CN220012411U, discloses an integrated oilfield water treatment device, including a fixed plate, through the coordinated use of a fixed frame and a rotating shaft, the fixed frame is rotated, and then the round rod is rotated, so that the round rod drives three round rods to rotate simultaneously through the rotating shaft and the transmission belt, and then the sand on the top of the filter screen plate is dumped, and the pull rod is moved away from the docking frame, so that the pull rod drives the card rod to move away from the docking rod, and then the docking rod is moved away from the inner wall of the docking frame, so that the filter screen plate is disassembled and cleaned.

[0007] This prior art requires manual cleaning of the filter, which is time-consuming and labor-intensive.

[0008] Publication (Announcement) No.: CN219663005U discloses a sewage recovery device, including a recovery box, which directly recovers the leaked sewage into the box without causing sewage overflow. When the micro water pump is running, the sewage is sprayed out through the nozzle, thereby continuously cooling the mechanical seal. Through the setting of the curved pipe, the sewage can be flushed to the surface of the filter net, and a part of the impurities blocked on the surface of the filter net can be washed down, thereby improving the filtering effect of the filter net and reducing maintenance costs.

[0009] The prior art is unable to collect sludge during operation. The sludge accumulates in front of the valve and is prone to form lumps that cannot be washed away by water flow. Manual cleaning is also very difficult.

[0010] In short, the technical solutions of the above-disclosed technologies, the technical problems to be solved and the beneficial effects produced are all different from the present utility model. Regarding more technical features, technical problems to be solved and the beneficial effects of the present utility model, there is no technical inspiration in the above-disclosed technical documents. Utility Model Content

[0011] In view of the above-mentioned defects in the prior art, the purpose of the utility model is to provide a real-time reinjection device for overflow sewage from wellhead operations, so as to solve the problem that debris is easily accumulated on the surface of the filter plate, resulting in reduced filtration treatment efficiency or even blockage, and the staff are required to disassemble, remove and clean the filter plate before replacing it, which is cumbersome and has a great impact on the efficiency of the filtration treatment.

[0012] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0013] A real-time reinjection device for overflow sewage from wellhead operations, comprising a treatment box, the treatment box being provided with a sewage inlet and a reinjection inlet, a left collecting filter frame and a right collecting filter frame being respectively provided on the left wall and the right wall inside the treatment box; a flip filtering device is provided inside the treatment box, the flip filtering device comprising a flip driving part and a filter collecting plate group; the flip driving part is used for driving the filter plates in the filter collecting plate group to rotate, so that the left end of the filter collecting plate group can be directly above the left collecting filter frame, and the right end can be directly above the right collecting filter frame.

[0014] Further, the filter collection plate group includes a left filter plate, a middle collection filter frame, and a right filter plate; the driving part includes a right rotating shaft, a left rotating shaft, a right gear, and a left gear;

[0015] Specifically, the left rotating shaft passes through the rear wall of the processing box and the upper end of the left filter plate, and is rotatably connected to the front wall of the processing box. The left gear is arranged at the rear end of the left rotating shaft, and the left rotating shaft is fixedly connected to the left filter plate.

[0016] Specifically, the right rotating shaft passes through the rear wall of the processing box and the upper end of the right filter plate, and is rotatably connected to the front wall of the processing box. The right gear is arranged at the rear end of the right rotating shaft. The right rotating shaft is fixedly connected to the right filter plate, and the left gear is meshed with the right gear.

[0017] Specifically, a driving assembly is provided at the rear end of the left rotating shaft or the rear end of the right rotating shaft, and the driving assembly is fixedly connected to the processing box;

[0018] Specifically, the middle collecting filter frame is fixed to the front wall and the rear wall of the processing box, and the middle collecting filter frame is arranged below the left rotating shaft and the right rotating shaft.

[0019] Furthermore, the filter collecting plate group also includes a shielding guide plate, which is fixed to the front wall and the rear wall of the processing box, and the shielding guide plate is arranged above the left rotating shaft and the right rotating shaft.

[0020] Furthermore, the sewage outlet is provided with a sewage hopper, the sewage outlet is arranged on the top surface of the treatment box, the refilling port is provided with a refilling pipe, the refilling port is arranged on the side of the treatment box and below the left collecting filter frame.

[0021] Furthermore, the central planes of the sewage bucket, the shielding guide plate, and the middle collection filter frame coincide with each other, and the left rotation axis and the right rotation axis take the central plane as a symmetry plane.

[0022] Furthermore, the frame opening of the middle collection filter frame covers the space between the left rotation axis and the right rotation axis;

[0023] Specifically, the shielding guide plate is a downward conical guide plate, and the maximum opening covers the space between the left rotation axis and the right rotation axis.

[0024] Furthermore, the left rotation axis and the right rotation axis are both above the left collecting filter frame and the right collecting filter frame.

[0025] Furthermore, the left rotating shaft is rotatably connected to the processing box via a left bearing, and the right rotating shaft is rotatably connected to the processing box via a right bearing.

[0026] Furthermore, the driving component is a servo motor.

[0027] Furthermore, the back of the processing box is provided with two movable knocking devices in contact with the flip filtering device;

[0028] Specifically, the movable striking device includes a contact frame, a movable plate, and a fixed plate;

[0029] Specifically, the inner surface of the contact frame overlaps the side of the left rotating shaft or the right rotating shaft, and the contact frame is connected to the movable plate through an intermediate rod;

[0030] Specifically, the movable plate is provided with an extrusion protrusion, which can be inserted into the teeth of the left gear or the right gear, and the movable plate is connected to the fixed plate through an elastic telescopic rod;

[0031] Specifically, the fixing plate is fixedly connected to the processing box.

[0032] Compared with the prior art, the utility model has the following beneficial effects:

[0033] 1. In the utility model, the inclined setting of the filter plate itself will smoothly guide some debris to slide into the left and right collection filter frames. The driving component controls the rotation of the rotating shaft and the filter plate, which will realize the filter plate flipping process to pour the debris into the middle collection filter frame, making the cleaning and collection process of the debris on the filter plate surface more sufficient and convenient, ensuring the continuous working ability of the filter plate to a certain extent, and making the efficiency of sewage treatment reinjection more ideal.

[0034] 2. In the utility model, the rotating teeth of the gears will intermittently control the action of the extrusion convex block. Under the elastic force of the elastic telescopic rod, the contact frame will knock on the surface of the rotating shaft during the resetting process, so that the debris blocked in the filter holes inside the filter plate will be vibrated and fall into the middle collection filter frame, thereby achieving a more thorough cleaning of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0036] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model;

[0037] Figure 3 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0038] Figure 4 It is a structural schematic diagram of the flip filter device in the utility model;

[0039] Figure 5 It is a structural schematic diagram of the movable striking device in the utility model.

[0040] In the figure: 1, treatment box; 2, access door; 3, observation window; 4, sewage bucket; 5, return pipe; 6, shielding guide plate; 7, left collection filter frame; 8, middle collection filter frame;

[0041] 9. Flip filter device; 91. Right filter plate; 92. Right rotating shaft; 93. Right bearing; 94. Right gear; 95. Drive assembly;

[0042] 10. movable striking device; 101. contact frame; 102. movable plate; 103. extrusion convex block; 104. middle rod; 105. elastic telescopic rod; 106. fixed plate. DETAILED DESCRIPTION

[0043] 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.

[0044] Embodiment 1:

[0045] See also Figures 1 to 4 The utility model provides a real-time reinjection device for overflow sewage from wellhead operations, comprising a treatment box 1, wherein a left collecting filter frame 7 and a right collecting filter frame are respectively arranged on the left wall and the right wall inside the treatment box 1, and a flip filter device 9 is arranged inside the treatment box 1, wherein the flip filter device 9 comprises a flip driving part and a filter collecting plate group, wherein the left end of the filter collecting plate group can be directly above the left collecting filter frame 7, and the right end can be directly above the right collecting filter frame, and the rotating shaft 92 of the flip driving part passes through the rear wall of the treatment box 1 and the filter collecting plate group from the rear of the treatment box 1, and is rotatably connected to the front wall of the treatment box 1.

[0046] A sewage hopper 4 is provided on the top surface of the treatment box 1 , and the sewage hopper 4 is used to inject sewage into the treatment box 1 .

[0047] A reinjection pipe 5 is provided on the side of the treatment box 1 below the left collecting filter frame 7. The reinjection pipe 5 can be used to reinject the water obtained after filtering in the treatment box 1 into the wellhead.

[0048] The filter collection plate group of the flip filter device 9 includes a left filter plate 91, a middle collection filter frame 8, a shielding guide plate 6, and a right filter plate; the driving part of the flip filter device 9 includes a right rotating shaft 92, a left rotating shaft, a right gear 94, and a left gear;

[0049] The left rotating shaft passes through the rear wall of the processing box 1 and the upper end of the left filter plate, and is rotatably connected to the front wall of the processing box 1. The left gear is arranged at the rear end of the left rotating shaft, and the left rotating shaft is fixedly connected to the left filter plate.

[0050] The right rotating shaft 92 passes through the rear wall of the processing box 1 and the upper end of the right filter plate 91, and is rotatably connected to the front wall of the processing box 1. The right gear 94 is arranged at the rear end of the right rotating shaft. The right rotating shaft 92 is fixedly connected to the right filter plate 91, and the left gear is meshed with the right gear 94.

[0051] The left rotating shaft and the right rotating shaft 92 are both above the left collecting filter frame 7 and the right collecting filter frame, and a driving assembly 95 is provided at the rear end of the left rotating shaft or the rear end of the right rotating shaft 92, and the driving assembly 95 is fixedly connected to the processing box 1;

[0052] The middle collecting filter frame 8 and the shielding guide plate 6 are both fixed to the front wall and the rear wall of the processing box 1. The middle collecting filter frame 8 is arranged below the left rotating shaft and the right rotating shaft. The frame opening of the middle collecting filter frame 8 covers the space between the left rotating shaft and the right rotating shaft 92. The shielding guide plate 6 is arranged above the left rotating shaft and the right rotating shaft. The shielding guide plate 6 is a downward conical guide plate, and the maximum opening covers the space between the left rotating shaft and the right rotating shaft 92.

[0053] The rotating shaft is above the collecting filter frame, so that the lower end of the filter plate is in an inclined state when it is directly above the collecting filter frame.

[0054] The left filter plate and the right filter plate 91 are used to filter and separate the impurities in the sewage.

[0055] The left collection filter frame 7 and the right collection filter frame are used to collect debris on the surface of the left filter plate and the right filter plate 91, and at the same time facilitate the smooth downward flow of water inside.

[0056] The left gear is meshed with the right gear 94 to ensure that the left rotating shaft and the right rotating shaft 92 rotate synchronously, so that the left filter plate and the right filter plate 91 rotate synchronously.

[0057] The shielding guide plate 6 facilitates the sewage falling from above to be smoothly guided to the upper sides of the two filter plates 91 .

[0058] Preferably, the central planes of the sewage hopper 4, the shielding guide plate 6 and the middle collection filter frame 8 coincide with each other, and the left rotation axis and the right rotation axis 92 are symmetrical with the central plane.

[0059] Preferably, the left rotating shaft is rotationally connected to the processing box 1 through a left bearing, and the right rotating shaft 92 is rotationally connected to the processing box 1 through a right bearing 93.

[0060] Among them, the bearings are used to support and limit the rotating shaft and the filter plate to ensure the stable and smooth rotation of the filter plate.

[0061] The driving assembly 95 is used to control the rotation process of the rotating shaft and the filter plate.

[0062] Preferably, the driving assembly 95 is a servo motor.

[0063] The front of the processing box 1 is provided with a take-in and put-out door 2 and an observation window 3, which are convenient for taking and putting out the left collection filter frame 7 and the middle collection filter frame 8, and for observing the state inside the processing box 1.

[0064] Embodiment 2:

[0065] Based on Example 1, Figure 5 In this embodiment, a movable striking device 10 is further provided.

[0066] Two movable knocking devices 10 in contact with the flip filtering device 9 are provided on the back of the processing box 1 .

[0067] The movable knocking device 10 includes a contact frame 101, a movable plate 102, and a fixed plate 106. The inner surface of the contact frame 101 overlaps the side of the left rotating shaft or the right rotating shaft 92. The contact frame 101 is connected to the movable plate 102 through an intermediate rod 104. The movable plate 102 is provided with an extrusion protrusion 103, and the extrusion protrusion 103 can be inserted into the teeth of the left gear or the right gear 94. The movable plate 102 is connected to the fixed plate 106 through an elastic telescopic rod 105, and the fixed plate 106 is fixedly connected to the processing box 1.

[0068] Among them, the elastic telescopic rod 105 applies elastic force to the movable plate 102, and at the same time ensures that the movable plate 102 moves stably in a straight line when under pressure. The extrusion protrusion 103 cooperates with the gear 94. During the rotation of the gear 94, its teeth will intermittently control the movement of the extrusion protrusion 103, so that the contact frame 101 intermittently contacts the left rotating shaft or the right rotating shaft 92, thereby achieving knocking and vibration of the rotating shaft 92.

[0069] Embodiment 3:

[0070] Based on Example 2, this embodiment provides a method for using a real-time reinjection device for overflow sewage from a wellhead operation, which specifically includes the following steps:

[0071] S1. When the sewage needs to be treated and reinjected, the collected sewage is directly injected into the treatment box 1 through the sewage hopper 4. The sewage passes through the left filter plate and the right filter plate 91 and falls into the bottom of the treatment box 1. At the same time, the left filter plate and the right filter plate 91 filter the debris in the sewage and guide it to the left collection filter frame 7 and the right collection filter frame. The filtered sewage is injected into the wellhead through the reinjection pipe 5.

[0072] S2, control the driving assembly 95 to work, the driving assembly 95 controls the left rotating shaft or the right rotating shaft 92 to rotate, at this time, the meshing between the left gear and the right gear 94 controls the left filter plate and the right filter plate 91 to rotate relative to each other;

[0073] During the rotation of the left gear and the right gear 94, the extrusion protrusion 103 will be controlled to move. When the extrusion protrusion 103 enters the gap between the teeth, the elastic telescopic rod 105 controls the movable plate 102 and the contact frame 101 to reset. The contact frame 101 knocks on the surface of the left rotating shaft or the right rotating shaft 92, thereby vibrating the left rotating shaft, the left filter plate, the right rotating shaft 92, and the right filter plate 91, so that the left filter plate 91 is vibrated during the upward rotation process, and the debris accumulated in the left filter plate 91 falls smoothly into the middle collection filter frame 8.

[0074] All components and connection methods of components not discussed in this application belong to the known technologies in this technical field and can be directly applied without further explanation.

[0075] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0076] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0077] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0078] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A real-time reinjection device for overflow sewage from wellhead operations, comprising a treatment box, wherein the treatment box is provided with a sewage inlet and a reinjection inlet, and is characterized in that: A left collection filter frame and a right collection filter frame are respectively arranged on the left wall and the right wall of the processing box; The processing box is provided with a flip filter device, which includes a flip drive part and a filter collection plate group; The flip driving part is used to drive the filter plates in the filter collecting plate group to rotate, so that the left end of the filter collecting plate group can be directly above the left collection filter frame, and the right end can be directly above the right collection filter frame.

2. A real-time reinjection device for overflow sewage from wellhead operations according to claim 1, characterized in that: The filter collection plate group includes a left filter plate, a middle collection filter frame, and a right filter plate; the driving part includes a right rotating shaft, a left rotating shaft, a right gear, and a left gear; The left rotating shaft passes through the rear wall of the processing box and the upper end of the left filter plate, and is rotatably connected to the front wall of the processing box. The left gear is arranged at the rear end of the left rotating shaft, and the left rotating shaft is fixedly connected to the left filter plate. The right rotating shaft passes through the rear wall of the processing box and the upper end of the right filter plate, and is rotatably connected to the front wall of the processing box. The right gear is arranged at the rear end of the right rotating shaft. The right rotating shaft is fixedly connected to the right filter plate, and the left gear is meshed with the right gear. A driving assembly is provided at the rear end of the left rotating shaft or the rear end of the right rotating shaft, and the driving assembly is fixedly connected to the processing box; The middle collecting filter frame is fixed to the front wall and the rear wall of the processing box, and the middle collecting filter frame is arranged below the left rotating shaft and the right rotating shaft.

3. A real-time reinjection device for overflow sewage from wellhead operations according to claim 2, characterized in that: The filter collection plate group also includes a shielding guide plate, which is fixed to the front wall and the rear wall of the processing box, and the shielding guide plate is arranged above the left rotating shaft and the right rotating shaft.

4. A real-time reinjection device for overflow sewage from wellhead operations according to claim 3, characterized in that: The sewage outlet is provided with a sewage bucket, the sewage outlet is arranged on the top surface of the treatment box, the refilling port is provided with a refilling pipe, the refilling port is arranged on the side of the treatment box and below the left collecting filter frame.

5. A real-time reinjection device for overflow sewage from wellhead operations according to claim 4, characterized in that: The central planes of the sewage bucket, the shielding guide plate and the middle collection filter frame coincide with each other, and the central planes of the left rotation axis and the right rotation axis are used as symmetric planes.

6. A real-time reinjection device for overflow sewage from wellhead operations according to claim 3, characterized in that: The frame opening of the middle collection filter frame covers the space between the left rotation axis and the right rotation axis; The shielding guide plate is a downward conical guide plate, and the maximum opening covers the space between the left rotation axis and the right rotation axis.

7. A real-time reinjection device for overflow sewage from wellhead operations according to claim 2, characterized in that: The left rotating shaft and the right rotating shaft are both above the left collecting filter frame and the right collecting filter frame.

8. A real-time reinjection device for overflow sewage from wellhead operations according to claim 2, characterized in that: The left rotating shaft is rotatably connected to the processing box via a left bearing, and the right rotating shaft is rotatably connected to the processing box via a right bearing.

9. A real-time reinjection device for overflow sewage from wellhead operations according to claim 2, characterized in that: The driving component is a servo motor.

10. A real-time reinjection device for overflow sewage from wellhead operations according to claim 2, characterized in that: The back of the processing box is provided with two movable knocking devices in contact with the flip filtering device; The movable striking device comprises a contact frame, a movable plate and a fixed plate; The inner surface of the contact frame overlaps the side of the left rotating shaft or the right rotating shaft, and the contact frame is connected to the movable plate through an intermediate rod; The movable plate is provided with an extrusion protrusion, which can be inserted into the teeth of the left gear or the right gear, and the movable plate is connected to the fixed plate through an elastic telescopic rod; The fixing plate is fixedly connected to the processing box.

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