A secondary separator for oilfield produced fluids

Abstract

The utility model discloses a secondary separator of oilfield produced liquid, including connecting hopper, the connecting hopper bottom is provided with the sealing plate, the sealing plate outside wall with connecting hopper bottom inboard wall corresponds, the sealing plate with connecting hopper fixed connection, the sealing plate top is provided with the scraping mechanism, the sealing plate one side is provided with the through slot, the through slot bottom is correspondingly provided with mobile closing mechanism, mobile closing mechanism bottom is correspondingly provided with collection mechanism, collection mechanism both sides with connecting hopper bottom sliding connection, the utility model discloses setting scraping mechanism at the bottom of separation container, through the periodical cleaning of routine maintenance, avoided the corrosive substance in the residue long -term and equipment metal surface contact, slow down the equipment corrosion rate, prolong the service life of equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of oil and gas processing equipment, specifically relating to a secondary separator for oilfield produced fluid. Background Technology

[0002] Secondary separation of produced fluids is a crucial step in the oil production process. After initial treatment, the produced fluids enter the secondary separation stage, where specific equipment and technologies are used to further separate the oil, water, and impurities. This aims to improve the purity of the crude oil to meet subsequent processing and sales standards, while ensuring that the separated water meets discharge or reinjection standards, thus achieving efficient resource utilization and environmental protection requirements.

[0003] During the oil-liquid separation process, residues are usually formed at the bottom of the equipment. This is because the produced fluid itself contains some solid impurities, including precipitates generated after the chemical agents added during the processing react. As the separation process proceeds, these substances will gradually settle to the bottom of the equipment and form residues. If these residues are not treated in time, they will affect the normal operation of the separation equipment, reduce the separation efficiency, accelerate equipment corrosion, and shorten the service life of the equipment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a secondary separator for oilfield produced fluid.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: a secondary separator for oilfield produced fluid is provided, including a connecting bucket. A sealing plate is provided at the bottom of the connecting bucket. The outer side wall of the sealing plate corresponds to the inner side wall of the bottom of the connecting bucket. The sealing plate is fixedly connected to the connecting bucket. A scraping mechanism is provided at the top of the sealing plate. A through groove is opened on one side of the sealing plate. A movable sealing mechanism is provided at the bottom of the through groove. A collection mechanism is provided at the bottom of the movable sealing mechanism. The two sides of the collection mechanism are slidably connected to the bottom of the connecting bucket.

[0006] By employing the above technical solution, and by installing a scraping mechanism at the bottom of the separation container, regular cleaning during routine maintenance prevents corrosive substances in the residue from prolonged contact with the equipment's metal surface, thus slowing down the corrosion rate and extending the equipment's service life. Furthermore, the scraping mechanism includes a support shaft, a scraper fixedly connected to the outer wall of the support shaft, the scraper being horizontally arranged along the axis of the support shaft, sliding seats being provided at both ends of the support shaft, the top of the sliding seats being rotatably connected to the support shaft, a slide rail being slidably connected to the bottom of the sliding seats, a limiting plate being fixedly connected to the end of the slide rail away from the sliding seats, and the two ends of the limiting plate being fixedly connected to the bottom side wall of the connecting bucket.

[0007] With the above technical solution, when the residue in the separation container gathers on the sealing plate through the inlet at the top of the connecting hopper, the sliding seat can drive the support shaft and the scraper at the bottom of the support shaft to clean the residue on the top surface of the sealing plate. Through the reciprocating motion of the scraper, the residue and dirt are thoroughly removed, ensuring the cleanliness of the processing environment inside the separation container.

[0008] Furthermore, the two ends of the support shaft are connected through the bottom sidewall of the bucket, and the bottom sidewall of the bucket is slidably connected to an isolation plate, the side of the isolation plate near the support shaft corresponding to the outer wall of the support shaft.

[0009] Through the above technical solution, during the reaction process in the separation container, the support shaft moves to one end of the connecting bucket. At this time, the bottom of the connecting bucket is sealed by the isolation plate, thereby preventing the liquid inside the container from flowing out and ensuring the normal operation of the equipment.

[0010] Furthermore, rotating blocks are fixedly connected to both ends of the support shaft, and a limit rod is provided on one side of each rotating block. The limit rod is fixedly connected to the side wall of the limit plate.

[0011] With the above technical solution, when the scraper is close to the sealing plate and near the through groove, solid residue is gathered under the action of the scraper and falls into the collection mechanism through the through groove. At this time, the rotating block at one end of the support shaft rotates in contact with the limiting rod, and at the same time drives the support shaft and scraper to rotate a certain angle. At this time, the scraper does not contact the sealing plate during the return stroke away from the through groove. When the rotating block at the other end of the support shaft contacts the limiting rod on the same side again during the stroke, the support shaft and scraper rotate again. At this time, the scraper is close to the top wall of the sealing plate. Through the cyclic unidirectional scraping, it is ensured that the scraped residue will not be brought back to the cleaned area during the reciprocating scraping.

[0012] Furthermore, a transmission belt is arranged parallel to the bottom end of the slide rail, the transmission belt is fixedly connected to the sliding seat, and transmission wheels are rotatably connected to both ends of the transmission belt. A rotating shaft is fixedly connected to the side of the transmission wheel near the limiting plate, and the rotating shaft is rotatably connected to the limiting plate.

[0013] The above technical solution achieves the reciprocating motion of the sliding seat along the slide rail by switching the forward and reverse directions of the transmission belt.

[0014] Furthermore, the rotating shaft is provided in two sets, with any one rotating shaft passing through the side wall of the limiting plate. A first motor is provided on one side of the limiting plate, and the output end of the first motor is fixedly connected to the rotating shaft.

[0015] With the above technical solution, after the first motor starts, it drives the rotating shaft to rotate, which in turn drives the transmission wheel to rotate. By switching the forward and reverse rotation at the output end of the first motor, the forward and reverse rotation of the transmission wheel and the transmission belt can be switched.

[0016] Furthermore, the movable enclosure mechanism includes a movable plate, which is slidably connected to the side walls on both sides of the bottom end of the connecting bucket.

[0017] Furthermore, a limiting groove is formed on the top wall of the movable plate, and a movable block is slidably connected in the limiting groove. A connecting rod is rotatably connected to the top of the movable block. The connecting rod is "L"-shaped, and a second motor is provided on the side of the top of the connecting rod away from the movable block. The output end of the second motor is fixedly connected to the connecting rod.

[0018] Through the above technical solution, the connecting rod is connected to the moving block by rotation, and the moving block is connected to the limiting slide groove by sliding. When the second motor is started, the connecting rod can drive the moving plate to slide along both sides of the bottom end of the connecting bucket, thereby realizing the closing and opening of the through groove by the moving plate.

[0019] Furthermore, the collection mechanism includes a storage box, which is slidably connected to both sides of the bottom end of the connecting hopper. Limiting seats are fixedly connected to both sides of the bottom end of the connecting hopper, and a spring is provided between the limiting seats and the storage box. The spring is fixedly connected to the limiting seats.

[0020] With the above technical solution, the cleaned residue falls from the channel into the storage box. When the cleaning is finished, the limit of the storage box is released, and under the action of the spring elastic force, the storage box can slide out along both sides of the bottom of the connecting bucket. At this time, the residue in the storage box can be cleaned.

[0021] The beneficial effects of this utility model are as follows: This invention features a scraping mechanism at the bottom of the separation container. Regular cleaning during routine maintenance prevents corrosive substances in the residue from prolonged contact with the metal surface of the equipment, slowing corrosion and extending its lifespan. A sliding base drives a support shaft and a scraper at the bottom of the shaft to clean the top surface of the sealing plate. The reciprocating motion of the scraper thoroughly removes residue and dirt, ensuring a clean processing environment within the separation container. Adjustment of the contact between the rotating blocks at both ends of the support shaft and the limiting rod allows the scraper to perform unidirectional reciprocating cleaning. This continuous unidirectional scraping of residue prevents dispersion during reciprocating motion, resulting in faster and more effective cleaning of the sealing plate and improved cleaning efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a first-view view of the scraping mechanism of this utility model; Figure 3 This is a second-view view of the scraping mechanism of this utility model; Figure 4This is a three-dimensional schematic diagram of the mobile enclosing mechanism of this utility model; Figure 5 This is a three-dimensional schematic diagram of the collecting mechanism of this utility model; Figure 6 This is a three-dimensional schematic diagram of the isolation plate of this utility model.

[0023] Reference numerals: 1. Connecting bucket; 2. Sealing plate; 3. Scraping mechanism; 301. Support shaft; 302. Scraper; 303. Sliding seat; 304. Slide rail; 305. Limiting plate; 306. Transmission wheel; 307. Transmission belt; 308. Rotating shaft; 309. First motor; 310. Rotating lever; 311. Limiting rod; 312. Isolation plate; 4. Through groove; 5. Moving closing mechanism; 501. Second motor; 502. Connecting rod; 503. Moving block; 504. Moving plate; 505. Slide groove; 7. Collecting mechanism; 701. Storage box; 702. Limiting seat; 703. Spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] like Figure 1 - Figure 6 As shown, a secondary separator for oilfield produced fluid includes a connecting hopper 1, a sealing plate 2 at the bottom of the connecting hopper 1, the outer wall of the sealing plate 2 corresponding to the inner wall of the bottom of the connecting hopper 1, the sealing plate 2 being fixedly connected to the connecting hopper 1, a scraping mechanism 3 at the top of the sealing plate 2, a through groove 4 on one side of the sealing plate 2, a movable sealing mechanism 5 at the bottom of the through groove 4, a collection mechanism 7 at the bottom of the movable sealing mechanism 5, and the two sides of the collection mechanism 7 being slidably connected to the bottom of the connecting hopper 1.

[0026] The scraping mechanism 3 includes a support shaft 301, a scraper 302 fixedly connected to the outer wall of the support shaft 301, the scraper 302 being horizontally arranged along the axis of the support shaft 301, a sliding seat 303 being provided at both ends of the support shaft 301, the top of the sliding seat 303 being rotatably connected to the support shaft 301, and a slide rail 304 being slidably connected to the bottom end of the sliding seat 303, a limiting plate 305 being fixedly connected to the end of the slide rail 304 away from the sliding seat 303, and the two ends of the limiting plate 305 being fixedly connected to the bottom side wall of the connecting bucket 1.

[0027] When the residue in the separation container gathers on the sealing plate 2 through the top inlet of the connecting hopper 1, the sliding seat 303 can drive the support shaft 301 and the scraper 302 at the bottom of the support shaft 301 to clean the residue on the top surface of the sealing plate 2. Through the reciprocating motion of the scraper 302, the residue and dirt are thoroughly removed, ensuring the cleanliness of the processing environment inside the separation container.

[0028] The two ends of the support shaft 301 pass through the bottom side wall of the connecting bucket 1. The bottom side wall of the connecting bucket 1 is slidably connected to the isolation plate 312. The side of the isolation plate 312 near the support shaft 301 corresponds to the outer wall of the support shaft 301.

[0029] During normal operation of the separation container, the support shaft 301 moves to one end of the connecting bucket 1. At this time, the bottom of the connecting bucket 1 is sealed by the isolation plate 312, thereby preventing the liquid inside the container from flowing out and ensuring the normal operation of the equipment.

[0030] Rotating blocks 310 are fixedly connected to both ends of the support shaft 301. A limit rod 311 is provided on one side of the rotating block 310, and the limit rod 311 is fixedly connected to the side wall of the limit plate 305.

[0031] When the scraper 302 is close to the sealing plate 2 and near the through groove 4, solid residues are gathered under the action of the scraper 302 and fall into the collection mechanism 7 through the through groove 4. At this time, the rotating block 310 at one end of the support shaft 301 rotates under the contact with the limiting rod 311, and at the same time drives the support shaft 301 and the scraper 302 to rotate a certain angle. At this time, the scraper 302 does not contact the sealing plate 2 during the return stroke away from the through groove 4. When the rotating block 310 at the other end of the support shaft 301 contacts the limiting rod 311 on the same side again during the stroke, the support shaft 301 and the scraper 302 rotate again. At this time, the scraper 302 is close to the top wall of the sealing plate 2. Through the cyclic unidirectional scraping, it is ensured that the scraped residues may not be brought back to the cleaned area during the reciprocating scraping.

[0032] A transmission belt 307 is arranged parallel to the bottom end of the slide rail 304. The top end of the transmission belt 307 is fixedly connected to the sliding seat 303. Transmission wheels 306 are rotatably connected to both ends of the transmission belt 307. A rotating shaft 308 is fixedly connected to the side of the transmission wheel 306 near the limiting plate 305. The rotating shaft 308 is rotatably connected to the limiting plate 305. By switching the forward and reverse directions of the transmission belt 307, the sliding seat 303 can reciprocate along the slide rail 304.

[0033] Two sets of rotating shafts 308 are provided, with any one of the rotating shafts 308 passing through the side wall of the limiting plate 305. A first motor 309 is provided on one side of the limiting plate 305, and the output end of the first motor 309 is fixedly connected to the rotating shaft 308.

[0034] After the first motor 309 starts, it drives the rotating shaft 308 to rotate, which in turn drives the transmission wheel 306 to rotate. By switching the forward and reverse rotation of the output end of the first motor 309, the forward and reverse rotation of the transmission wheel 306 and the transmission belt 307 can be achieved.

[0035] The movable enclosure mechanism 5 includes a movable plate 504, which is slidably connected to the side walls on both sides of the bottom end of the connecting bucket 1.

[0036] A limiting groove 505 is provided on the top wall of the movable plate 504. A movable block 503 is slidably connected in the limiting groove 505. A connecting rod 502 is rotatably connected to the top of the movable block 503. The connecting rod 502 is "L" shaped. A second motor 501 is provided on the side of the top of the connecting rod 502 away from the movable block 503. The output end of the second motor 501 is fixedly connected to the connecting rod 502.

[0037] The connecting rod 502 is connected to the moving block 503 by rotation, and the moving block 503 is connected to the limiting slide groove 505 by sliding. When the second motor 501 is started, the connecting rod 502 can drive the moving plate 504 to slide along both sides of the bottom end of the connecting bucket 1, thereby realizing the closing and opening of the through groove 4 by the moving plate 504.

[0038] The collection mechanism 7 includes a storage box 701, which is slidably connected to both sides of the bottom of the connecting bucket 1. Limiting seats 702 are fixedly connected to both sides of the bottom of the connecting bucket 1. A spring 703 is provided between the limiting seat 702 and the storage box 701, and the spring 703 is fixedly connected to the limiting seat 702.

[0039] The cleaned residue falls from the through groove 4 into the storage box 701. When the cleaning is finished, the limit of the storage box 701 is released. Under the action of the elastic force of the spring 703, the storage box 701 can slide out along both sides of the bottom of the connecting bucket 1. At this time, the residue in the storage box 701 can be cleaned.

[0040] When using this utility model, firstly, the first motor 309 is started. After the first motor 309 starts, it drives the rotating shaft 308 to rotate. The rotating shaft 308 drives the transmission wheel 306 to rotate. The rotation of the transmission wheel 306 drives the transmission belt 307 to rotate. By switching the forward and reverse directions of the transmission belt 307, the sliding seat 303 reciprocates along the slide rail 304. Under the drive of the transmission belt 307, the sliding seat 303 continues to drive the support shaft 301 and the scraper 302 at the bottom of the support shaft 301 to clean the residue on the top surface of the sealing plate 2. Then, the second motor 501 is started, and the connecting rod 502 can drive the moving plate 504 to slide out along both sides of the bottom of the connecting bucket 1. At this time, the cleaned residue falls into the storage box 701 through the through groove 4. When the cleaning is finished, the limit of the storage box 701 can be released. Under the action of the elastic force of the spring 703, the storage box 701 can slide out along both sides of the bottom of the connecting bucket 1. At this time, the residue in the storage box 701 can be cleaned.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A secondary separator for oilfield produced fluid, comprising a connecting hopper (1), characterized in that: A sealing plate (2) is provided at the bottom of the connecting bucket (1). The outer side wall of the sealing plate (2) corresponds to the inner side wall of the bottom of the connecting bucket (1). The sealing plate (2) is fixedly connected to the connecting bucket (1). A scraping mechanism (3) is provided at the top of the sealing plate (2). A through groove (4) is provided on one side of the sealing plate (2). A movable closing mechanism (5) is provided at the bottom of the through groove (4). A collection mechanism (7) is provided at the bottom of the movable closing mechanism (5). The two sides of the collection mechanism (7) are slidably connected to the bottom of the connecting bucket (1).

2. The secondary separator for oilfield produced fluid according to claim 1, characterized in that, The scraping mechanism (3) includes a support shaft (301), a scraper (302) is fixedly connected to the outer wall of the support shaft (301), the scraper (302) is horizontally arranged along the axis of the support shaft (301), a sliding seat (303) is provided at both ends of the support shaft (301), the top end of the sliding seat (303) is rotatably connected to the support shaft (301), a slide rail (304) is slidably connected to the bottom end of the sliding seat (303), a limiting plate (305) is fixedly connected to the end of the slide rail (304) away from the sliding seat (303), and both ends of the limiting plate (305) are fixedly connected to the bottom side wall of the connecting bucket (1).

3. A secondary separator for oilfield produced fluid according to claim 2, characterized in that, The support shaft (301) extends through the bottom sidewall of the connecting bucket (1) at both ends. The bottom sidewall of the connecting bucket (1) is slidably connected to an isolation plate (312). The side of the isolation plate (312) closest to the support shaft (301) corresponds to the outer wall of the support shaft (301).

4. A secondary separator for oilfield produced fluid according to claim 2, characterized in that, The support shaft (301) is fixedly connected to two ends of a rotating block (310), and a limit rod (311) is provided on one side of the rotating block (310), and the limit rod (311) is fixedly connected to the side wall of the limit plate (305).

5. A secondary separator for oilfield produced fluid according to claim 4, characterized in that, A transmission belt (307) is arranged parallel to the bottom end of the slide rail (304). The transmission belt (307) is fixedly connected to the sliding seat (303). Transmission wheels (306) are rotatably connected to both ends of the transmission belt (307). A rotating shaft (308) is fixedly connected to the side of the transmission wheel (306) near the limiting plate (305). The rotating shaft (308) is rotatably connected to the limiting plate (305).

6. A secondary separator for oilfield produced fluid according to claim 5, characterized in that, Two sets of rotating shafts (308) are provided, one of which passes through the side wall of the limiting plate (305). A first motor (309) is provided on one side of the limiting plate (305), and the output end of the first motor (309) is fixedly connected to the rotating shaft (308).

7. A secondary separator for oilfield produced fluid according to claim 5, characterized in that, The mobile enclosure mechanism (5) includes a mobile plate (504), which is slidably connected to the side walls on both sides of the bottom of the connecting bucket (1).

8. A secondary separator for oilfield produced fluid according to claim 7, characterized in that, The top wall of the movable plate (504) is provided with a limiting groove (505), and a movable block (503) is slidably connected in the limiting groove (505). A connecting rod (502) is rotatably connected to the top of the movable block (503). The connecting rod (502) is "L" shaped. A second motor (501) is provided on the side of the top of the connecting rod (502) away from the movable block (503). The output end of the second motor (501) is fixedly connected to the connecting rod (502).

9. A secondary separator for oilfield produced fluid according to claim 7, characterized in that, The collection mechanism (7) includes a storage box (701), which is slidably connected to both sides of the bottom of the connecting bucket (1). Limiting seats (702) are fixedly connected to both sides of the bottom of the connecting bucket (1). A spring (703) is provided between the limiting seat (702) and the storage box (701), and the spring (703) is fixedly connected to the limiting seat (702).

Images