An integrated device for treating waste liquid of oil and gas field comprehensive operation
The design of the lifting frame and top rod simplifies the cleaning process of the filter mechanism of the oil and gas field waste liquid treatment device, solves the problems of inconvenient operation and safety risks, and improves the practicality and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING HONGSHENGDA ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-07
AI Technical Summary
Existing integrated wastewater treatment devices for oil and gas fields are inconvenient to operate and pose safety risks when cleaning the filtration mechanism, which limits the promotion and use of the devices.
A filtration system comprising a limiting frame, a lifting frame, a top rod, and a compression spring was designed. The lifting frame is automatically raised and lowered via push rods and rollers, simplifying the cleaning process and reducing safety risks.
This enables convenient cleaning of the filtration mechanism, reduces operational difficulty and safety risks, and enhances the practicality and safety of the device.
Smart Images

Figure CN224467608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste liquid treatment technology, specifically an integrated device for treating waste liquid from comprehensive oil and gas field operations. Background Technology
[0002] Currently, there are various technologies and equipment for treating wastewater from integrated oil and gas field operations. Common treatment processes include collecting the wastewater, oxidizing it to change the chemical properties of pollutants to facilitate precipitation and separation, adding flocculants to aggregate suspended particles and colloids into large flocs, achieving preliminary liquid-solid separation through air flotation, multi-stage filtration of the liquid phase to meet reinjection standards before reinjection, and centrifugation and pressure filtration of the solid phase for resource utilization.
[0003] Among the many publicly disclosed related patent technologies, such as the oil and gas field waste liquid treatment device with Chinese patent publication number CN221093890U, it is designed with a structure including a latch, a cover, a frame, a locking block, and an arc-shaped filter screen. After a period of use, the latch and cover can be opened, the frame can be pulled up, and the frame can be pushed back into the sliding groove by contacting the locking block. This allows the frame to be quickly removed to clean the arc-shaped filter screen, thus achieving a convenient cleaning function, effectively improving work efficiency, and enhancing the practicality of the device.
[0004] However, this solution still has significant shortcomings. Because the handle is located deep inside the filter box, cleaning the filter mechanism is extremely inconvenient for workers. Furthermore, operating deep inside the filter box poses certain safety risks to workers, potentially leading to accidental injury. This limits the further promotion and use of the device in practical applications.
[0005] Therefore, this utility model provides an integrated device for the treatment of waste liquid from comprehensive oil and gas field operations. Utility Model Content
[0006] In view of the shortcomings of the existing technology, this utility model provides an integrated device for the treatment of waste liquid in comprehensive oil and gas field operations, so as to solve the above problems.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an integrated device for treating waste liquid from comprehensive oil and gas field operations, comprising a treatment tank, a filter tank, an inlet pipe, and a drain pipe. A limiting frame is installed inside the filter tank, and four support sleeves are installed at the bottom of the limiting frame. A lifting frame is engaged with the limiting frame, and a recessed filter screen is installed inside the lifting frame. A top rod is slidably connected to the inner wall of each of the four support sleeves, and the four top rods penetrate the top of the limiting frame. The lifting frame contacts the tops of the four top rods. A compression spring is provided on the inner wall of each of the four support sleeves to push the top rod, and a lower clearance groove is provided at the bottom of the top rod to accommodate the compression spring. A top cover is hinged to the top of the filter tank, and two push rods are installed at the bottom of the top cover, both of which contact the top of the lifting frame.
[0008] Preferably, each of the two push rods is rotatably connected to a roller on its opposite side, and both rollers are in contact with the top of the lifting frame.
[0009] Preferably, a transparent observation plate is rotatably connected to the inner wall of the top cover, a scraper is installed at the bottom of the top cover, the scraper is slidably connected to the bottom of the transparent observation plate, a groove is provided at the top of the transparent observation plate, and a knob is installed on the inner wall of the groove.
[0010] Preferably, the bottom of the lifting frame is equipped with four docking rods, and the four docking rods correspond one-to-one with the positions of the four top rods. Each of the four top rods has an upper clearance groove at its top, and the docking rods are inserted into the inner wall of the corresponding upper clearance groove.
[0011] Preferably, a magnetic plate is installed on the inner side of the bottom of the upper clearance groove, the docking rod is magnetically attracted to the top of the corresponding magnetic plate, and a plurality of damping rings are embedded in the inner wall of the upper clearance groove, and the docking rod is inserted into the inner wall of the corresponding plurality of damping rings.
[0012] Beneficial effects
[0013] Compared with the prior art, the present invention has the following advantages:
[0014] (1) This utility model uses a push rod, a support sleeve, a top rod and a compression spring to push and press the lifting frame up and down. It is simple and convenient, and solves the problem that when the staff cleans the filter mechanism, the operation process is extremely inconvenient. In addition, when operating inside the deep box, the staff faces certain safety risks and may be injured accidentally. This limits the further promotion and use of the device in practical applications. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0016] Figure 2 This is a three-dimensional enlarged cross-sectional structural diagram of the filter box in this utility model;
[0017] Figure 3 This is a three-dimensional enlarged cross-sectional structural diagram of the filter box in the open state of this utility model;
[0018] Figure 4 This is the utility model Figure 2 A magnified view of the structure at point A in the middle;
[0019] Figure 5 This is a three-dimensional enlarged structural diagram of the recessed filter screen in this utility model;
[0020] Figure 6 This is a three-dimensional enlarged cross-sectional structural diagram of the support sleeve in this utility model.
[0021] In the diagram: 1. Processing box; 2. Filter box; 21. Inlet pipe; 22. Drain pipe; 23. Top cover; 24. Push rod; 241. Roller; 25. Transparent observation plate; 251. Groove; 252. Knob; 26. Scraper; 3. Limiting frame; 31. Lifting frame; 32. Recessed filter screen; 33. Connecting rod; 4. Support sleeve; 41. Top rod; 411. Lower clearance groove; 412. Upper clearance groove; 42. Compression spring; 43. Magnetic plate; 44. Damping ring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-6 An integrated device for treating waste liquid from comprehensive oil and gas field operations includes a treatment tank 1, a filter tank 2, an inlet pipe 21, and a drain pipe 22. A limiting frame 3 is installed inside the filter tank 2, and four support sleeves 4 are installed at the bottom of the limiting frame 3.
[0024] The limiting frame 3 is connected to the lifting frame 31, and the inner side of the lifting frame 31 is equipped with a recessed filter screen 32.
[0025] It should be noted that the installation height of the limiting frame 3 described in this embodiment is lower than that of the water inlet pipe 21.
[0026] The inner walls of the four support sleeves 4 are slidably connected with push rods 41. The four push rods 41 all pass through the top of the limiting frame 3. The lifting frame 31 is in contact with the top of the four push rods 41. The inner walls of the four support sleeves 4 are provided with compression springs 42 that push the push rods 41. The bottom of the push rods 41 is provided with a lower clearance groove 411 that makes way for the compression springs 42.
[0027] It should be noted that the four support sleeves 4 and four top rods 41 described in this embodiment are distributed in a rectangular shape below the lifting frame 31 and do not contact the recessed filter screen 32.
[0028] The top of the filter box 2 is hinged to a top cover 23, and two push rods 24 are installed at the bottom of the top cover 23. Both push rods 24 are in contact with the top of the lifting frame 31.
[0029] It should be noted that the push rod 24 described in this embodiment presses down on the lifting frame 31.
[0030] Specifically, the treatment tank 1 and filter tank 2 are an integrated device for treating waste liquid from comprehensive oil and gas field operations, achieving purification and compliant discharge or reuse of the waste liquid. After flocculation and sedimentation in the treatment tank 1, the liquid phase enters the filter tank 2 through the inlet pipe 21 for filtration, allowing impurities in the waste liquid to be intercepted. The filter tank 2 is supported by the limiting frame 3, which in turn supports the recessed filter screen 32. The lifting frame 31 can be completely locked onto and inside the limiting frame 3, ensuring stability during use. The lifting frame 31 filters the waste liquid, and the filtered liquid phase reaches the drain pipe 22 at the bottom of the inner side of the filter tank 2. The drain pipe 22 then transfers the waste liquid to the next treatment stage. After use, when cleaning the recessed filter screen 32 is required, the top cover 23 is opened, opening the space of the filter tank 2. The top cover 23 supports two push rods 24, which rotate as the top cover 23 is opened. The lifting frame 31 is supported by four support sleeves 4 and push rods 4. Driven by the compression spring 42, the lifting frame 31 automatically lifts up, raising the recessed filter screen 32 to a position higher than the filter box 2. This allows workers to easily remove the lifting frame 31 and the recessed filter screen 32 for cleaning. After cleaning, the lifting frame 31 is placed back on the top rod 41, and the top cover 23 is closed. The top cover 23 presses down on the lifting frame 31 via two push rods 24, causing the lifting frame 31 to lower the recessed filter screen 32 to the working area. This simple and convenient system solves the problem of inconvenience when cleaning the filter mechanism and the safety risks associated with operating deep inside the box, which could lead to accidental injury. This limited the further promotion and use of the device in practical applications. When the lifting frame 31 descends, it squeezes the compression spring 42. The top rod 41 provides clearance for the compression spring 42 through the lower clearance groove 411, preventing the compression spring 42 from being damaged due to excessive pressure.
[0031] In one embodiment of this utility model, such as Figures 1-6 As shown, each of the two push rods 24 is rotatably connected to a roller 241 on one side of the opposite side, and both rollers 241 are in contact with the top of the lifting frame 31.
[0032] It should be noted that the push rod 24 described in this embodiment does not directly contact the lifting frame 31, and the roller 241 rolls while pressing against the lifting frame 31.
[0033] Specifically, when the top cover 23 drives the push rod 24 to flip towards the filter box 2, the push rod 24 drives the roller 241 to move closer to the lifting frame 31. Then the roller 241 contacts the lifting frame 31. As the top cover 23 connects with the filter box 2, the push rod 24 and the roller 241 can continuously press the lifting frame 31 down. The rolling of the roller 241 on the lifting frame 31 can reduce the resistance of movement and reduce physical exertion and friction loss.
[0034] In one embodiment of this utility model, such as Figures 1-6 As shown, a transparent observation plate 25 is rotatably connected to the inner wall of the top cover 23, a scraper 26 is installed at the bottom of the top cover 23, the scraper 26 is slidably connected to the bottom of the transparent observation plate 25, a groove 251 is provided at the top of the transparent observation plate 25, and a knob 252 is installed on the inner wall of the groove 251.
[0035] It should be noted that the knob 252 described in this embodiment is located at the center of the groove 251, and the contact length between the scraper 26 and the transparent observation plate 25 is greater than the radius of the transparent observation plate 25.
[0036] Specifically, the transparent observation plate 25 is thinned by the groove 251, which allows the transparent observation plate 25 to provide a good field of vision for the operator to observe the internal condition of the filter box 2. The knob 252 is easy to rotate manually, so that the transparent observation plate 25 can rotate on its own. The scraper 26 remains fixed, and the transparent observation plate 25 and the scraper 26 generate relative movement. The scraper 26 scrapes and cleans the bottom surface of the transparent observation plate 25, so that the dirt splashed on the bottom of the transparent observation plate 25 by sewage can be cleaned, which helps to ensure a clear field of vision of the transparent observation plate 25.
[0037] In one embodiment of this utility model, such as Figures 1-6 As shown, four docking rods 33 are installed at the bottom of the lifting frame 31. The four docking rods 33 correspond one-to-one with the positions of the four top rods 41. Each of the four top rods 41 has an upper clearance groove 412 at its top. The docking rods 33 are inserted into the inner wall of the corresponding upper clearance groove 412.
[0038] Specifically, when the lifting frame 31 removes and cleans the recessed filter screen 32 and then puts it back in, the lifting frame 31 drives the docking rod 33 to insert into the upper clearance groove 412, so that the four top rods 41 can be accurately aligned with the lifting frame 31. This ensures that the lifting frame 31 and the recessed filter screen 32 remain stable when they subsequently descend into the filter box 2, preventing the lifting frame 31 and the recessed filter screen 32 from shifting positions.
[0039] In one embodiment of this utility model, such as Figures 1-6As shown, a magnetic plate 43 is installed on the inner side of the bottom of the upper clearance groove 412, and the docking rod 33 is magnetically attracted to the top of the corresponding magnetic plate 43. Several damping rings 44 are embedded in the inner wall of the upper clearance groove 412, and the docking rod 33 is inserted into the inner wall of the corresponding damping rings 44.
[0040] It should be noted that the docking rod 33 described in this embodiment is made of magnetic metal.
[0041] Specifically, when the docking rod 33 is inserted into the upper relief groove 412, the upper relief groove 412 increases the friction between itself and the docking rod 33 through several damping rings 44, thereby improving the stability of the connection between the lifting frame 31 and the top rod 41 and preventing it from loosening at will. In addition, the magnetic plate 43 attracts the docking rod 33, further strengthening its firmness. This ensures that when the supporting sleeve 4 and other components push the lifting frame 31 upward, the lifting frame 31 and the recessed filter screen 32 will not directly detach from the supporting sleeve 4, preventing waste liquid impurities from spilling.
[0042] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0043] Working principle: First, the waste liquid undergoes flocculation and sedimentation in the treatment tank 1, causing some impurities in the waste liquid to coagulate and precipitate. Then, the liquid phase flows into the filter tank 2 through the inlet pipe 21 for filtration. Inside the filter tank 2, the limiting frame 3 supports the lifting frame 31, which in turn supports the recessed filter screen 32. The lifting frame 31 can be firmly locked onto the limiting frame 3 and its inner side. After the waste liquid is filtered by the lifting frame 31, the filtered liquid phase reaches the drain pipe 22 at the bottom of the inner side of the filter tank 2, and then the drain pipe 22 conducts the waste liquid to the next treatment stage. When it is necessary to clean the recessed filter screen 32, the top cover 23 hinged to the top of the filter tank 2 is opened. The top cover 23 drives the two push rods 24 to rotate, opening the space of the filter tank 2. The installation height is lower than the inlet pipe 21, and the four support sleeves 4 and four top rods 41 are distributed in a rectangular shape below the lifting frame 31. The compression springs 42 on the inner wall of the four support sleeves 4 push the top rods 41 to slide upward on the inner wall of the support sleeves 4. The top rods 41 pass through the top of the limiting frame 3 and contact the lifting frame 31, thereby pushing the lifting frame 31 to automatically lift the recessed filter screen 32 to a position higher than the filter box 2, so that the staff can directly remove the lifting frame 31 and the recessed filter screen 32. After cleaning, the lifting frame 31 is placed back on the top rods 41 and the top cover 23 is closed. At this time, the top cover 23 presses down on the lifting frame 31 through two push rods 24, so that the lifting frame 31 and the recessed filter screen 32 are lowered to the working area. It is simple and convenient to use.
[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An integrated device for treating wastewater from integrated oil and gas field operations, comprising a treatment tank (1), a filter tank (2), an inlet pipe (21), and a drain pipe (22), characterized in that, A limiting frame (3) is installed inside the filter box (2), and four support sleeves (4) are installed at the bottom of the limiting frame (3). The limiting frame (3) is engaged with a lifting frame (31), and a recessed filter screen (32) is installed on the inner side of the lifting frame (31). The inner walls of the four support sleeves (4) are slidably connected with top rods (41), the four top rods (41) penetrate the top of the limiting frame (3), the lifting frame (31) is in contact with the top of the four top rods (41), the inner walls of the four support sleeves (4) are provided with compression springs (42) that push the top rods (41), and the bottom of the top rods (41) is provided with a lower clearance groove (411) that makes way for the compression springs (42); The filter box (2) is hinged to a top cover (23), and two push rods (24) are installed at the bottom of the top cover (23). Both push rods (24) are in contact with the top of the lifting frame (31).
2. The integrated device for treating wastewater from comprehensive oil and gas field operations according to claim 1, characterized in that, Both push rods (24) are rotatably connected to rollers (241) on opposite sides, and both rollers (241) are in contact with the top of the lifting frame (31).
3. The integrated device for treating wastewater from comprehensive oil and gas field operations according to claim 1, characterized in that, A transparent observation plate (25) is rotatably connected to the inner wall of the top cover (23). A scraper (26) is installed at the bottom of the top cover (23). The scraper (26) is slidably connected to the bottom of the transparent observation plate (25). A groove (251) is provided at the top of the transparent observation plate (25). A knob (252) is installed on the inner wall of the groove (251).
4. The integrated device for treating wastewater from comprehensive oil and gas field operations according to claim 1, characterized in that, The bottom of the lifting frame (31) is equipped with four docking rods (33), and the four docking rods (33) correspond one-to-one with the four top rods (41). The top of each of the four top rods (41) is provided with an upper clearance groove (412), and the docking rods (33) are inserted into the inner wall of the corresponding upper clearance groove (412).
5. The integrated device for treating wastewater from comprehensive oil and gas field operations according to claim 4, characterized in that, A magnetic plate (43) is installed on the inner side of the bottom of the upper clearance groove (412). The docking rod (33) is magnetically attracted to the top of the corresponding magnetic plate (43). Several damping rings (44) are embedded in the inner wall of the upper clearance groove (412). The docking rod (33) is inserted into the inner wall of the corresponding damping rings (44).