A crude oil three-phase separator

Abstract

This utility model relates to the field of separator technology and discloses a crude oil three-phase separator, including a tank body. Two end caps are symmetrically arranged at both ends of the tank body, and manholes are provided on the end caps. An exhaust pipe is provided at the bottom of the tank body, and an oil-gas pre-separation cylinder is provided on the side of the exhaust pipe. An oil-gas removal component is provided on the oil-gas pre-separation cylinder, and two support bases are symmetrically arranged at the bottom of the tank body. This utility model, by providing an oil-gas pre-separation cylinder on the tank body and an oil-gas removal component on the oil-gas pre-separation cylinder, wherein the filter element composed of a filter screen cylinder and a closed bottom plate in the oil-gas removal component can filter the oil-gas mixture transported through the feed pipe, accelerating the impurity filtration rate, thereby ensuring a cleaner oil-gas mixture entering the tank body, avoiding impurities in the oil-gas mixture remaining in the tank body and causing trouble for subsequent operations, and making it more convenient for users.

Description

Technical Field

[0001] This utility model relates to the field of separator technology, specifically a crude oil three-phase separator. Background Technology

[0002] In the petroleum industry, three-phase separators are generally used to ensure the full separation of oil, gas, and water. When using a three-phase separator, the oil-gas mixture is introduced into the separator. First, the gas and liquid are pre-separated, and the gas is dried and discharged from the exhaust port. Then, the oil and water in the liquid are separated and discharged through the oil outlet and water outlet.

[0003] A search revealed that this utility model provides a three-phase separator, with Chinese patent publication number CN 218794149 U, comprising: a three-phase separation device; a filter plate fixedly installed on the bottom of the inner side of the three-phase separation device; a valve fixedly installed on the bottom of the three-phase separation device, with a connecting hose fixedly installed at the bottom of the valve; and a storage tank fixedly installed at one end of the connecting hose, with extension plates fixedly installed at both ends of both sides of the storage tank, and sliding rods slidably connected inside the extension plates. This utility model provides a three-phase separator that, through the filter plate, can block slag during use, preventing slag from entering the drain pipe and causing blockage. Furthermore, the vibration motor drives the storage tank to vibrate, which can dislodge some crude oil from the gaps in the slag and return it to the interior of the three-phase separation device, preventing direct discharge and waste of crude oil.

[0004] The three-phase separator in the aforementioned patent still has certain shortcomings. As existing crude oil three-phase separators mostly introduce the oil-gas mixture directly through the gas pipeline, they lack corresponding impurity removal structures. Consequently, large particulate impurities in the oil-gas mixture can easily accumulate in the separator tank, causing significant trouble for subsequent continuous use and cleaning, and making it inconvenient for users. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a crude oil three-phase separator, which solves the problem that existing crude oil three-phase separators mostly introduce oil-gas mixtures directly through gas pipelines without corresponding impurity removal structures. As a result, large particulate impurities in the oil-gas mixture easily accumulate in the separator tank, causing significant trouble for subsequent continuous use and cleaning, and making it inconvenient for users.

[0006] This utility model provides the following technical solution: a crude oil three-phase separator, including a tank body, two end caps symmetrically arranged at both ends of the tank body, a manhole provided on the end caps, an exhaust pipe provided at the bottom end of the tank body, an oil-gas pre-separation cylinder provided on the side of the exhaust pipe, an oil-gas impurity removal component provided on the oil-gas pre-separation cylinder, and two support bases symmetrically arranged at the bottom end of the tank body.

[0007] The oil and gas impurity removal assembly includes a fixed connecting cover plate disposed at the top of the oil and gas pre-separation cylinder. A filter screen cylinder is disposed at the bottom of the fixed connecting cover plate. A servo motor is disposed at the top of the fixed connecting cover plate. The drive shaft of the servo motor rotates through the fixed connecting cover plate and is connected to a transmission rod. The transmission rod is fixedly connected to the inner wall of the filter screen cylinder through several evenly arranged fixed connecting rods. A closed bottom plate is disposed at the bottom of the filter screen cylinder. A slag discharge pipe is disposed in the middle of the closed bottom plate. A valve is disposed on the slag discharge pipe. An annular groove is opened on the side of the bottom end of the fixed connecting cover plate. Several limiting connecting posts are evenly inserted in the annular groove. The limiting connecting posts are all fixedly connected to the top of the filter screen cylinder. Mounting holes are evenly opened around the fixed connecting cover plate. A feed inlet is opened at the top of the fixed connecting cover plate. A feed pipe is disposed on the feed inlet.

[0008] Preferred technical solution 1: The top end of the oil-gas pre-separation cylinder is provided with a fixed connecting ring, and fastening screws are evenly arranged around the top end of the fixed connecting ring.

[0009] Preferred technical solution 2: The top end of the fastening screw passes through the mounting hole, and a fastening nut is fitted onto the top end of the fastening screw.

[0010] Preferred technical solution 3: The top of the oil-gas pre-separation cylinder is open.

[0011] This solution allows for better insertion and installation of the fixed connection cover plate and filter screen cylinder at the top of the oil-gas pre-separation cylinder.

[0012] Preferred technical solution four: The longitudinal section of the closed bottom plate is funnel-shaped.

[0013] This solution enables better removal of impurities remaining in the filter cylinder and closed bottom plate after filtration.

[0014] Preferred technical solution five: The end of the limiting connecting post is spherical, and the limiting connecting post slides in the annular groove.

[0015] This design allows the limiting connecting column to slide in the annular groove, thereby limiting the rotation of the filter cylinder.

[0016] Compared with the prior art, this utility model provides a crude oil three-phase separator with the following advantages: This utility model has an oil-gas pre-separation cylinder on the tank body, and an oil-gas impurity removal component on the oil-gas pre-separation cylinder. The filter component, which is composed of a filter screen cylinder and a closed bottom plate, can filter the oil-gas mixture transported through the feed pipe. Under the drive of the filter screen cylinder by the servo motor through the transmission rod, the impurity filtration rate can be accelerated, thereby ensuring that the oil-gas mixture entering the tank is cleaner and avoiding the retention of impurities in the oil-gas mixture in the tank, which would cause trouble for subsequent operations and make it more convenient for users. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 For the present utility model Figure 1 Schematic diagram of the structure of the oil and gas impurity removal component;

[0019] Figure 3 For the present utility model Figure 2 Schematic diagram of the structure of the middle filter screen cylinder;

[0020] Figure 4 For the present utility model Figure 3 Enlarged view of the structure of the annular groove.

[0021] In the diagram: 1. Tank body; 2. End cap; 3. Manhole; 4. Exhaust stack; 5. Oil-gas pre-separation cylinder; 6. Oil-gas impurity removal assembly; 7. Support base;

[0022] 601. Fixed connecting cover plate; 602. Filter screen cylinder; 603. Servo motor; 604. Transmission rod; 605. Fixed connecting rod; 606. Closed base plate; 607. Slag discharge pipe; 608. Valve; 609. Annular slide groove; 610. Limiting connecting column; 611. Mounting hole; 612. Feed inlet; 613. Feed pipe; 614. Fixed connecting ring; 615. Fastening screw; 616. Fastening nut. Detailed Implementation

[0023] Please see Figure 1-4 ,

[0024] Example 1: A crude oil three-phase separator includes a tank body 1, two end caps 2 are symmetrically arranged at both ends of the tank body 1, manholes 3 are provided on the end caps 2, an exhaust pipe 4 is provided at the bottom of the tank body 1, an oil-gas pre-separation cylinder 5 is provided on the side of the exhaust pipe 4, an oil-gas impurity removal component 6 is provided on the oil-gas pre-separation cylinder 5, and two support bases 7 are symmetrically arranged at the bottom of the tank body 1.

[0025] The oil and gas impurity removal component 6 includes a fixed connecting cover plate 601 set at the top of the oil and gas pre-separation cylinder 5, a filter screen cylinder 602 set at the bottom of the fixed connecting cover plate 601, a servo motor 603 set at the top of the fixed connecting cover plate 601, the drive shaft of the servo motor 603 rotates through the fixed connecting cover plate 601 and is connected to a transmission rod 604, the transmission rod 604 is fixedly connected to the inner wall of the filter screen cylinder 602 by a number of evenly arranged fixed connecting rods 605, a closed bottom plate 606 set at the bottom of the filter screen cylinder 602, a slag discharge pipe 607 set in the middle of the closed bottom plate 606, a valve 608 set on the slag discharge pipe 607, and an annular groove 609 opened on the side of the bottom end of the fixed connecting cover plate 601.

[0026] A number of limiting connecting posts 610 are evenly inserted in the annular chute 609. The limiting connecting posts 610 are all fixedly connected to the top of the filter screen cylinder 602. The fixed connecting cover plate 601 has mounting holes 611 evenly opened around its perimeter. The top of the fixed connecting cover plate 601 has a feed inlet 612. A feed pipe 613 is provided on the feed inlet 612. The top of the oil-gas pre-separation cylinder 5 is provided with a fixed connecting ring 614. Fastening screws 615 are evenly arranged around the top of the fixed connecting ring 614. The top of the fastening screws 615 passes through the mounting holes 611. A fastening nut 616 is fitted on the top of the fastening screws 615.

[0027] Example 2: The difference between this example and Example 1 is that the top of the oil-gas pre-separation cylinder 5 is open.

[0028] This allows the fixed connection cover plate 601 and filter screen cylinder 602 to be better inserted and installed on the top of the oil-gas pre-separation cylinder 5.

[0029] Example 3: The difference between this example and Example 1 is that the longitudinal section of the closed base plate 606 is funnel-shaped.

[0030] This allows impurities remaining in the filter cylinder 602 and the closed bottom plate 606 after filtration to be discharged more effectively.

[0031] Example 4: The difference between this example and Example 1 is that the end of the limiting connecting post 610 is spherical, and the limiting connecting post 610 slides in the annular groove 609.

[0032] This allows the limiting connecting post 610 to slide in the annular groove 609, thereby limiting the rotation of the filter cylinder 602.

[0033] In this embodiment, since most existing crude oil three-phase separators introduce the oil-gas mixture directly through the gas pipeline without a corresponding impurity removal structure, large particulate impurities in the oil-gas mixture can easily accumulate in the separator tank, causing significant trouble for subsequent continuous use and cleaning, and making it inconvenient for users.

[0034] In summary, in practical implementation, when the user needs to transport the oil-gas mixture to tank 1 for oil-gas separation, the user can first connect the conveying pipeline to the feed pipe 613 in the oil-gas impurity removal component 6, and at the same time start the servo motor 603, so that the servo motor 603 can drive the filter cylinder 602 and the closed bottom plate 606 to rotate through the transmission rod 604 and the fixed connecting rod 605. The upper and lower ends of the filter cylinder 602 are open, and the oil-gas mixture connected to the feed pipe 613 falls into the filter cylinder 602 and the closed bottom plate 606 through the feed port 612. The servo motor 603 drives the filter cylinder 602 and the closed bottom plate 606 to rotate.

[0035] This allows the oil-gas mixture entering the filter cylinder 602 to be thrown out by the centrifugal force of rotation, so that the petroleum liquid is thrown out to the area between the filter cylinder 602 and the inner wall of the oil-gas pre-separation cylinder 5, so that the impurities contained in the oil-gas mixture are fully filtered, and the oil gas can also pass through the filter cylinder 602 into the oil-gas pre-separation cylinder 5, and then enter the tank 1 for separation processing.

[0036] After the filter cylinder 602 has been used for a period of time, the user can unscrew the fastening nut 616 on the end of the fastening screw 615 inserted in the mounting hole 611 on the fixed connection cover plate 601. The user can then pull the fixed connection cover plate 601 out of the oil-gas pre-separation cylinder 5. At this time, the user only needs to open the valve 608 on the slag discharge pipe 607 set at the bottom of the closed bottom plate 606 to quickly discharge the impurities retained in the filter cylinder 602 and the top of the closed bottom plate 606, thereby completing the cleaning of the filtered impurities. This facilitates the user's subsequent filtration use, making the operation convenient and the user's experience more convenient.

Claims

1. A crude oil three-phase separator comprising a tank body (1), two ends of the tank body (1) are symmetrically provided with two end covers (2), a manhole (3) is arranged on the end cover (2), characterized in that: The tank body (1) is provided with an exhaust pipe (4) at the bottom end, and an oil-gas pre-separation cylinder (5) is provided on the side of the exhaust pipe (4). An oil-gas impurity removal component (6) is provided on the oil-gas pre-separation cylinder (5). Two support bases (7) are symmetrically provided at the bottom end of the tank body (1). The oil and gas impurity removal assembly (6) includes a fixed connecting cover plate (601) disposed on the top of the oil and gas pre-separation cylinder (5). A filter screen cylinder (602) is disposed at the bottom of the fixed connecting cover plate (601). A servo motor (603) is disposed at the top of the fixed connecting cover plate (601). The drive shaft of the servo motor (603) rotates through the fixed connecting cover plate (601) and is connected to a transmission rod (604). The transmission rod (604) is fixedly connected to the inner wall of the filter screen cylinder (602) through a plurality of evenly arranged fixed connecting rods (605). A closed bottom plate (606) is disposed at the bottom of the filter screen cylinder (602). A slag discharge pipe (607) is provided in the middle of the closed bottom plate (606), and a valve (608) is provided on the slag discharge pipe (607). An annular groove (609) is provided on the side of the bottom end of the fixed connection cover plate (601). A plurality of limiting connecting columns (610) are evenly inserted in the annular groove (609). The limiting connecting columns (610) are all fixedly connected to the top of the filter screen cylinder (602). Mounting holes (611) are evenly provided around the fixed connection cover plate (601). A feed inlet (612) is provided at the top of the fixed connection cover plate (601), and a feed pipe (613) is provided on the feed inlet (612).

2. A crude oil three-phase separator according to claim 1, characterized in that: The top of the oil-gas pre-separation cylinder (5) is provided with a fixed connecting ring (614), and fastening screws (615) are evenly arranged around the top of the fixed connecting ring (614).

3. A crude oil three-phase separator according to claim 2, characterized in that: The top end of the fastening screw (615) passes through the mounting hole (611), and a fastening nut (616) is fitted onto the top end of the fastening screw (615).

4. A crude oil three-phase separator according to claim 3, characterized in that: The top of the oil-gas pre-separation cylinder (5) is open.

5. A crude oil three-phase separator according to claim 4, characterized in that: The longitudinal section of the closed base plate (606) is funnel-shaped.

6. A crude oil three-phase separator according to claim 5, characterized in that: The end of the limiting connecting post (610) is spherical, and the limiting connecting post (610) slides in the annular groove (609).

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