An integrated equipment for treating oilfield produced water

Abstract

The utility model relates to water treatment technical field, concretely is a kind of oilfield produced water treatment integrated equipment, including air float, the top of air float both sides are equipped with transmission chain, the similar side of transmission chain both sides is equipped with two connecting pieces, the similar side of connecting piece both sides is fixedly installed with connecting rod, the outside of every two connecting rods is inserted with support frame, the side of support frame both sides is equipped with scraper, the middle part of support frame is rotatably connected with rotating rod, the front and back both sides of rotating rod are fixedly installed with pull rope, by removing the restriction between support frame and two connecting rods, the position of support frame can be flexibly adjusted, and the adjustment of scraper is realized, so that it can adapt to the diversified working condition demand, at the same time, scraper and support frame adopt assembly type design, convenient for subsequent disassembly and maintenance, to help improve the operation efficiency of air float and water treatment performance.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and more specifically, to an integrated equipment for treating produced water in oil fields. Background Technology

[0002] With the continuous development of the oil extraction industry, the amount of produced water generated in oil fields is increasing day by day. Produced water has a complex composition, containing a large amount of crude oil, suspended solids, emulsified oil, dissolved inorganic salts, and microorganisms and other pollutants. If it is discharged directly without effective treatment, it will damage the surrounding ecological environment and waste precious water resources. Therefore, the research and application of oil field produced water treatment technology is crucial, aiming to realize the recycling of water resources, reduce the risk of environmental pollution, and improve the economic benefits of oil field development.

[0003] Among numerous oilfield produced water treatment technologies, air flotation has become one of the core treatment units widely used due to its ability to efficiently separate oil droplets, suspended solids, and colloidal substances. As a key piece of equipment in air flotation, the air flotation machine introduces a large number of tiny air bubbles into the water, causing hydrophobic particles in the wastewater to adhere to the air bubbles, forming flocs with a density less than that of water. These flocs then float to the surface and are scraped off by a scraper device, achieving solid-liquid separation.

[0004] However, when existing air flotation machines are in use, due to the fixed scraper structure, when the oil content in the extracted water suddenly increases or the oil droplet size increases, the original scraper position may not be able to fully cover all the floating dirt, causing some dirt to re-enter the subsequent treatment process with the water flow, affecting the overall water treatment effect. Conversely, when the oil content is low or the oil droplet size is small, the scraper may be too close to the liquid surface and excessively agitate the water, destroying the already formed stable foam layer, which is also not conducive to oil-water separation. Moreover, as the equipment runs for a long time, impurities are easy to accumulate on the scraper, further reducing its scraping efficiency. However, due to the fixed structure, cleaning and maintenance are also relatively difficult. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides an integrated equipment for oilfield produced water treatment, which solves the problem that the scraper structure of the air flotation machine is relatively fixed in the prior art, which cannot meet the usage requirements under different conditions and is inconvenient for subsequent maintenance.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an integrated equipment for treating produced water in oil fields, including an air flotation machine. The air flotation machine has a transmission chain installed on both the front and rear sides of its top. Two connectors are installed on the adjacent sides of the transmission chains on both the front and rear sides. Connecting rods are fixedly installed on the adjacent sides of the connectors on both the front and rear sides. A support frame is inserted into the outer side of each pair of connecting rods. Scrapers are installed on the opposite sides of the support frames on both the left and right sides.

[0007] The support frame is rotatably connected to a rotating rod in the middle. Pull ropes are fixedly installed on both the front and rear sides of the rotating rod. The support frame has movable grooves on both the front and rear sides inside. A movable plate is slidably connected to the inner wall of the movable groove. A plug rod is fixedly installed on one side of the movable plate, and an elastic element is fixedly installed on the other side. Multiple insertion holes are opened on the adjacent side of the connecting rods on both the front and rear sides.

[0008] The rotating rods on the left and right sides are symmetrically designed, and their adjacent ends both pass through the support frame. The end of the pull rope away from the rotating rod passes through the moving groove and is fixedly installed with the moving plate, which is installed inside the support frame.

[0009] The end of the insertion rod away from the rotating rod is inserted into the inner wall of one of the insertion holes, and the end of the elastic element near the rotating rod is fixedly installed on the inner wall of the moving groove.

[0010] The upper and lower support frames each have two through holes on opposite sides, and the upper and lower scrapers each have two pins inserted on adjacent sides. The adjacent outer sides of the pins on the left and right sides each have a slot, and the inner wall of the slot is fitted with an elastic retaining ring.

[0011] The pins on both sides have through holes at their closest points, and the elastic retaining rings on both sides are fitted to the support frame at their furthest points.

[0012] The scrapers on the left and right sides are designed diagonally, and the scraper on the lower side is set on the upper side of the inner wall of the air flotation machine.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In the above solution, by removing the restriction between the support frame and the two connecting rods, the position of the support frame can be flexibly adjusted, thereby realizing the adjustment of the scraper to adapt to diverse working conditions. At the same time, the scraper and the support frame adopt an assembly design, which facilitates subsequent disassembly and maintenance, thereby helping to improve the operating efficiency and water treatment performance of the air flotation machine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 This is a front view of the support frame of this utility model;

[0018] Figure 4 for Figure 3 Cross-sectional view of the structure at point AA;

[0019] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle;

[0020] Figure 6 This is a schematic diagram of the socket structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the scraper structure of this utility model;

[0022] Figure 8 for Figure 7 Enlarged view of the structure at point B in the middle.

[0023] [Figure Labels]

[0024] 1. Air flotation machine; 2. Drive chain; 3. Scraper; 4. Pin; 5. Support frame; 6. Connecting rod; 7. Connector; 8. Pull rope; 9. Rotating rod; 10. Insert rod; 11. Moving plate; 12. Moving groove; 13. Elastic element; 14. Through hole; 15. Insertion hole; 16. Slot; 17. Elastic retaining ring. Detailed Implementation

[0025] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0026] Example 1: Please refer to Figures 1 to 8 This utility model provides a technical solution: an integrated equipment for treating produced water in oil fields, including an air flotation machine 1. A transmission chain 2 is installed on both the front and rear sides of the top of the air flotation machine 1. Two connecting parts 7 are installed on the adjacent sides of the transmission chains 2 on both the front and rear sides. Connecting rods 6 are fixedly installed on the adjacent sides of the connecting parts 7 on both the front and rear sides. A support frame 5 is inserted into the outer side of each pair of connecting rods 6. Scrapers 3 are installed on the opposite sides of the support frames 5 on both the left and right sides. The scrapers 3 on the left and right sides are designed diagonally. The lower scraper 3 is located on the upper side of the inner wall of the air flotation machine 1. Thus, when the transmission chain 2 rotates, it drives the two scrapers 3 to scrape the floating debris, thereby increasing the water treatment effect.

[0027] First, release the restriction between the support frame 5 and the connecting rod 6. Then, the support frame 5 can be adjusted on the outside of the two connecting rods 6 to adjust the position of the scraper 3. After that, fix the position of the adjusted support frame 5 to facilitate the adjustment of the position of the scraper 3 to meet the usage requirements under different conditions. Then, the air flotation machine 1 can be started, and the two drive chains 2 on both sides can be used to drive the two scrapers 3 to scrape the floating dirt to improve the water treatment effect.

[0028] Example 2: Based on Example 1, in order to achieve the adjusted position of the fixed support frame 5, a rotating rod 9 is rotatably connected to the middle of the support frame 5. Pull ropes 8 are fixedly installed on both the front and rear sides of the rotating rod 9. Moving grooves 12 are provided on both the front and rear sides of the interior of the support frame 5. Moving plates 11 are slidably connected to the inner walls of the moving grooves 12. An insert rod 10 is fixedly installed on one side of the moving plate 11, and an elastic element 13 is fixedly installed on the other side. Multiple insertion holes 15 are provided on the adjacent sides of the connecting rods 6 on both the front and rear sides. The rotating rods 9 on the left and right sides are symmetrically designed, and their adjacent ends both penetrate the support frame 5. The pull ropes 8 are far... One end of the rotating rod 9 passes through the moving groove 12 and is fixedly installed between it and the moving plate 11. The moving plate 11 is installed inside the support frame 5. By rotating the rotating rod 9, the two pull ropes 8 pull one end of the insertion rod 10 away from the insertion hole 15 to adjust the position of the support frame 5. The end of the insertion rod 10 away from the rotating rod 9 is inserted into the inner wall of one of the insertion holes 15. The end of the elastic member 13 near the rotating rod 9 is fixedly installed on the inner wall of the moving groove 12. The elastic force of the elastic member 13 pushes the insertion rod 10 and the insertion hole 15 into an inserted state to fix the adjusted position of the support frame 5.

[0029] First, rotate the rotating rod 9 to drive the pull ropes 8 on both sides to wrap around its outer side. At the same time, pull the moving plates 11 on both sides to slide towards each other along the inner wall of the moving groove 12. This compresses the elastic element 13 and causes one end of the insertion rod 10 to disengage from the insertion hole 15. At this time, the support frame 5 can be adjusted on the outside of the two connecting rods 6 to adjust the position of the scraper 3. After that, release the rotating rod 9 and use the elastic force of the elastic element 13 to push the moving plate 11 back to its original position. This causes one end of the insertion rod 10 to be inserted into the inner wall of the corresponding insertion hole 15 to fix the position of the adjusted support frame 5. Then, the air flotation machine 1 can be started. The two transmission chains 2 on both sides drive the two scrapers 3 to scrape the floating dirt to improve the water treatment effect.

[0030] Example 3: Based on Example 2, in order to disassemble the scraper 3, two through holes 14 are opened on the opposite side of the upper and lower support frames 5, and two pins 4 are inserted into the adjacent side of the upper and lower scraper 3. A slot 16 is opened on the outer side of the adjacent part of the left and right pins 4, and an elastic retaining ring 17 is installed on the inner wall of the slot 16. The adjacent end of the left and right pins 4 passes through the through hole 14, and the opposite side of the left and right elastic retaining rings 17 is attached to the support frame 5. After the elastic retaining ring 17 is removed, the scraper 3 can be separated from the support frame 5 for maintenance or replacement of the scraper 3.

[0031] First, remove the elastic retaining ring 17 from the slot 16. Then, pull out the pin 4 from the through hole 14 and the scraper 3. After that, the scraper 3 can be maintained or replaced separately. After that, attach the scraper 3 to one side of the support frame 5, reset the pin 4 and pass it through the through hole 14, and then reset the elastic retaining ring 17 and lock it in the inner wall of the slot 16 to fix the scraper 3 and the support frame 5, which facilitates subsequent disassembly and assembly, thereby improving the performance of the air flotation machine 1.

[0032] The working process of this utility model is as follows:

[0033] In use, first rotate the rotating rod 9 to drive the two pull ropes 8 to wrap around its outer side, and at the same time pull the two moving plates 11 to slide towards each other along the inner wall of the moving groove 12. This will compress the elastic element 13 and drive one end of the insertion rod 10 to disengage from the insertion hole 15. At this time, the support frame 5 can be adjusted on the outside of the two connecting rods 6 to adjust the position of the scraper 3. After that, release the rotating rod 9 and use the elastic force of the elastic element 13 to push the moving plate 11 back to its original position. This will also drive one end of the insertion rod 10 to insert into the inner wall of the corresponding insertion hole 15 to fix the position of the adjusted support frame 5. Then, the air flotation machine 1 can be started, and the two transmission chains 2 on both sides will drive the two scrapers 3 to scrape the floating dirt to improve the water treatment effect.

[0034] When the scraper 3 needs to be maintained separately, first remove the elastic retaining ring 17 from the slot 16, then pull out the pin 4 from the through hole 14 and the scraper 3. After that, the scraper 3 can be maintained or replaced separately. After that, the scraper 3 is attached to one side of the support frame 5, and the pin 4 is reset and passed through the through hole 14. Then the elastic retaining ring 17 is reset and locked in the inner wall of the slot 16 to fix the scraper 3 and the support frame 5, which facilitates subsequent disassembly and assembly, thereby improving the performance of the air flotation machine 1.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0036] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated equipment for treating produced water in oilfields, characterized in that, The device includes an air flotation machine (1), on which transmission chains (2) are installed on both the front and rear sides of the top. Two connectors (7) are installed on the adjacent side of the transmission chains (2) on both the front and rear sides. Connecting rods (6) are fixedly installed on the adjacent side of the connectors (7) on both the front and rear sides. A support frame (5) is inserted into the outer side of each pair of connecting rods (6). Scrapers (3) are installed on the opposite side of the support frames (5) on both the left and right sides.

2. The integrated oilfield produced water treatment equipment according to claim 1, characterized in that, A rotating rod (9) is rotatably connected to the middle of the support frame (5). Pull ropes (8) are fixedly installed on both the front and rear sides of the rotating rod (9). Movable grooves (12) are opened on both the front and rear sides of the inside of the support frame (5). A movable plate (11) is slidably connected to the inner wall of the movable groove (12). A plug rod (10) is fixedly installed on one side of the movable plate (11), and an elastic element (13) is fixedly installed on the other side. Multiple insertion holes (15) are opened on the adjacent side of the connecting rods (6) on both the front and rear sides.

3. The integrated oilfield produced water treatment equipment according to claim 2, characterized in that, The rotating rods (9) on the left and right sides are symmetrically designed, and their adjacent ends pass through the support frame (5). The end of the pull rope (8) away from the rotating rod (9) passes through the moving groove (12) and is fixedly installed with the moving plate (11). The moving plate (11) is installed inside the support frame (5).

4. The integrated oilfield produced water treatment equipment according to claim 2, characterized in that, The end of the insertion rod (10) away from the rotating rod (9) is inserted into the inner wall of one of the insertion holes (15), and the end of the elastic element (13) near the rotating rod (9) is fixedly installed on the inner wall of the moving groove (12).

5. The integrated oilfield produced water treatment equipment according to claim 1, characterized in that, Two through holes (14) are opened on the opposite side of the support frame (5) on both the upper and lower sides. Two pins (4) are inserted into the adjacent side of the scraper (3) on both the upper and lower sides. A slot (16) is opened on the outer side of the adjacent part of the pin (4) on both the left and right sides. An elastic retaining ring (17) is installed on the inner wall of the slot (16).

6. The integrated oilfield produced water treatment equipment according to claim 5, characterized in that, The adjacent ends of the pins (4) on both the left and right sides pass through the through holes (14), and the opposite sides of the elastic retaining rings (17) on both the left and right sides are in contact with the support frame (5).

7. The integrated oilfield produced water treatment equipment according to claim 1, characterized in that, The scrapers (3) on the left and right sides are designed diagonally, and the scraper (3) on the lower side is set on the upper side of the inner wall of the air flotation machine (1).

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