阅读说明：本技术 一种静电聚结电极的油气水三相分离器 (Oil-gas-water three-phase separator with electrostatic coalescence electrode ) 是由 赵会军 李渝海 于鹏飞 吕孝飞 雷云 周宁 于 2021-10-14 设计创作，主要内容包括：本发明提供了一种静电聚结电极的油气水三相分离器,包括外壳体、旋流式预分离器、捕雾器、上壳体、油气水输入阀门和气阀门；外壳体对应空腔一侧壁具有开口,该开口端可拆卸连接有内壳体,内壳体对应开口端侧固定有盖板,盖板的上部设有油阀门、下部设有水阀门,内壳体靠近盖板一侧固定有隔板,所述隔板将油阀门与水阀门分隔,内壳体对应隔板下方设有静电聚结电极。本发明结构设计简单合理,仅需拧动两个螺母即可将上壳体与外壳体进行拆卸,拆卸便捷,可快捷高效清理三相分离器内壁及底部泥沙,有效提高了三相分离器的实用性和使用安全性。(The invention provides an oil-gas-water three-phase separator of an electrostatic coalescence electrode, which comprises an outer shell, a spiral-flow type pre-separator, a mist catcher, an upper shell, an oil-gas-water input valve and a gas valve, wherein the spiral-flow type pre-separator is arranged on the outer shell; the shell body corresponds a cavity lateral wall and has the opening, and this open end can be dismantled and is connected with interior casing, and interior casing corresponds opening end side and is fixed with the apron, and the upper portion of apron is equipped with the oil valve door, the lower part is equipped with the water valve door, and interior casing is close to apron one side and is fixed with the baffle, the baffle is separated oil valve door and water valve door, and interior casing corresponds the baffle below and is equipped with the static coalescence electrode. The three-phase separator is simple and reasonable in structural design, the upper shell and the outer shell can be disassembled only by screwing two nuts, the disassembly is convenient, silt on the inner wall and the bottom of the three-phase separator can be cleaned quickly and efficiently, and the practicability and the use safety of the three-phase separator are effectively improved.)

1. The utility model provides an oil gas water three-phase separator of electrostatic coalescence electrode, includes shell body (1), has the cavity in shell body (1), its characterized in that:

the cyclone type pre-separator (10) is connected to the top of the outer shell (1), the bottom of the cyclone type pre-separator (10) is communicated with the cavity, a mist catcher (11) is fixed to the top of the cyclone type pre-separator (10), an upper shell (5) covers the outer part of the outer shell (1) corresponding to the cyclone type pre-separator (10), an oil-gas-water input valve (3) and an air valve (4) are arranged on the upper shell (5), the oil-gas-water input valve (3) is communicated with the cyclone type pre-separator (10), and the air valve (4) is correspondingly communicated with the space above the mist catcher (11);

the utility model discloses an electrostatic coalescence electrode structure, including shell body (1), shell body (12), apron (6), upper portion of apron (6) are equipped with oil valve (7), the lower part is equipped with water valve (8), interior casing (12) correspond opening end side and be fixed with apron (6), the upper portion of apron (6) is equipped with oil valve (7), lower part, interior casing (12) be close to apron (6) one side and be fixed with baffle (13), baffle (13) are separated oil valve (7) and water valve (8), interior casing (12) correspond baffle (13) below and are equipped with electrostatic coalescence electrode (23).

2. An electrostatic coalescence electrode oil-gas-water three-phase separator as claimed in claim 1, wherein: an operation groove (17) is formed in the outer end of the side wall of the outer shell (1) corresponding to the opening, a butt joint screw rod (14) is fixed in the operation groove (17), and the outer end of the butt joint screw rod (14) is provided with threads and is connected with a limit nut (16) in a threaded manner; the butt joint screw rod (14) is fixed with a butt joint screw rod (15) on the cover plate (6), one end of the butt joint screw rod (15) is fixed with the cover plate (6), the other end of the butt joint screw rod points to the butt joint screw rod (14), and the butt joint screw rod (15) is consistent with the butt joint screw rod (14) in thread and is in threaded connection with the limiting nut (16).

3. An electrostatic coalescence electrode oil-gas-water three-phase separator as claimed in claim 1, wherein: go up lid both sides still can dismantle respectively and be connected with support frame (2), support frame (2) one end can dismantle with last casing (5) and be connected, the other end sets up outside outer casing (1) and supports with the holding surface of below.

4. An electrostatic coalescence electrode oil-gas-water three-phase separator as claimed in claim 3, wherein: go up casing (5) bilateral symmetry open and have dismouting groove (18), dismouting groove (18) internal fixation has connecting screw (19), support frame (2) be fixed with connecting block (21) corresponding to the connection terminal surface of last casing (5), opening on connecting block (21) have with connecting screw (19) to complex connect the via hole (22), this connecting block (21) are through connect the via hole (22) with connecting screw (19) grafting cooperation, connecting screw (19) on still threaded connection have assembly and disassembly nut (20), assembly and disassembly nut (20) support connecting block (21) tight crimping on last casing (5).

5. An electrostatic coalescence electrode oil-gas-water three-phase separator as claimed in claim 1, wherein: the baffle (13) for along the L type plate structure of lid horizontal direction setting, including horizontal portion and longitudinal portion, horizontal portion one end is fixed with apron (6) medial extremity end, the longitudinal portion is fixed at the other end of horizontal portion and upwards extends, and highly is less than apron (6) height.

6. An electrostatic coalescence electrode oil-gas-water three-phase separator as claimed in claim 1, wherein: the top of the outer shell (1) is provided with a connecting port (9), the bottom end of the spiral-flow type pre-separator (10) is provided with a liquid outlet, and the liquid outlet is flush with the bottom end of the connecting port (9).

Technical Field

The invention relates to the technical field of oil-gas-water three-phase separators, in particular to an oil-gas-water three-phase separator with an electrostatic coalescence electrode.

Background

The oil-gas-water three-phase separator is one of the most commonly used devices in the oil field development and production process, and is a solid-liquid-gas three-phase separation device arranged under a pump in an oil-water well of an oil field.

An existing oil-gas-water three-phase separator is generally shown in a method for separating oil, gas and water by using an oil-gas-water horizontal three-phase separator disclosed in CN107737466B, the three-phase separator comprises a horizontal tank body, a separation plate is arranged in an inner cavity of the horizontal tank body, a buffer is arranged below an inlet pipe on the separation plate, a down-flow pipe is arranged below an air outlet pipe, and an air lift pipe is upwards arranged between the buffer and the down-flow pipe. The part of the inner cavity of the horizontal tank body, which is positioned above the upper liquid layer of the partition plate, is a gas phase area, the part, which is positioned below the partition plate and between the overflow plate and the second seal head, is an oil-water separation area, and the part, which is positioned below the partition plate and between the overflow plate and the first seal head, is an oil phase area. The three-phase separator is used for separating gas-liquid ratio oil-gas-water mixture in the field of oil-gas field treatment or other fields.

But in actual separation process, carry the silt particle in the mixed liquid that oil field oil-water well was produced, when oil gas-water three-phase separator separated the mixed liquid, the silt particle can deposit in oil gas-water three-phase separator's bottom, but current oil gas-water three-phase separator is mostly the integral type structure setting, is not convenient for the later stage to clear up the silt particle.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the invention provides the oil-gas-water three-phase separator of the electrostatic coalescence electrode, which is convenient to disassemble, can quickly and efficiently clean silt on the inner wall and the bottom and improves the practicability and the use safety.

The technical scheme adopted by the invention for solving the technical problems is as follows: an oil-gas-water three-phase separator of an electrostatic coalescence electrode comprises an outer shell, wherein a cavity is formed in the outer shell, the top of the outer shell is connected with a spiral-flow type pre-separator, the bottom of the spiral-flow type pre-separator is communicated with the cavity, and a mist catcher is fixed at the top of the spiral-flow type pre-separator; the shell body corresponds a cavity lateral wall and has the opening, and this open end can be dismantled and is connected with interior casing, interior casing correspond opening end side and be fixed with the apron, the upper portion of apron is equipped with the oil valve, the lower part is equipped with the water valve, interior casing be close to apron one side and be fixed with the baffle, the baffle is separated oil valve and water valve, interior casing corresponds the baffle below and is equipped with static coalescence electrode.

Furthermore, the outer shell is detachably connected with the inner shell and the cover plate, the outer end of the side wall of the outer shell corresponding to the opening is provided with an operation groove, a butt joint screw rod is fixed in the operation groove, and the outer end of the butt joint screw rod is provided with threads and is connected with a limit nut in a threaded manner; the butt joint screw rod is fixed on the cover plate correspondingly to the butt joint screw rod, one end of the butt joint screw rod is fixed with the cover plate, the other end of the butt joint screw rod points to the butt joint screw rod, and the butt joint screw rod is consistent with the thread of the butt joint screw rod and is in threaded connection with the limiting nut.

In order to support the three-phase separator from both sides, improve the security of using, last casing both sides still can dismantle respectively and be connected with the support frame, support frame one end can dismantle with last casing and be connected, the other end setting outside the shell and support with the holding surface of below.

Furthermore, the detachable connection between the support frame and the upper shell is realized through threaded connection, the two sides of the upper shell are symmetrically provided with dismounting grooves, connecting screw rods are fixed in the dismounting grooves, the support frame is fixed with connecting blocks corresponding to the connecting end faces of the upper shell, the connecting blocks are provided with connecting through holes matched with the connecting screw rods, the connecting blocks are in splicing fit with the connecting screw rods through the connecting through holes, the connecting screw rods are further provided with dismounting nuts in threaded connection, and the dismounting nuts support the connecting blocks to be tightly pressed on the upper shell.

Furthermore, the structure of baffle sets up to the L type, the baffle be along the L type plate member structure that the lid horizontal direction set up, including horizontal portion and longitudinal part, horizontal portion one end is fixed with apron medial extremity face, the longitudinal part is fixed at the other end of horizontal portion and upwards extends, and highly is less than the apron height.

Further, the shell body top have the connector, cyclone preseparator bottom have the liquid outlet, the liquid outlet is parallel and level with the bottom of connector.

The invention has the beneficial effects that:

1. the detachable oil-gas-water three-phase separator is provided with the outer shell, the inner shell and the cover plate, detachable connection is achieved between the outer shell and the cover plate through the butt screw rods, the operation grooves, the butt screw rods and the limiting nuts, when the inner wall and bottom silt of the inner shell need to be cleaned, only two limiting nuts need to be screwed, the two butt screw rods lose limiting effects, the cover plate can be detached, then the inner shell is drawn out, the inner wall and the bottom silt of the inner shell can be cleaned, convenience, rapidness and high efficiency are achieved, and the practicability of the oil-gas-water three-phase separator is improved.

2. The two support frames are symmetrically arranged on the outer wall of the upper shell, the bottom ends of the two support frames are respectively contacted with the support surfaces, the effect of assisting in supporting the upper shell can be achieved, the weight of the upper shell is prevented from being only pressed on the outer shell, the problem that the oil-gas-water three-phase separator topples due to the fact that the upper portion is heavy and the lower portion is light when the inner shell is disassembled and cleaned in the later period is solved, and the use safety of the oil-gas-water three-phase separator is improved.

3. The two support frames are connected with the upper shell through the detachable structure, so that the auxiliary support effect is achieved, meanwhile, the influence on the maintenance or overhaul work of the inner structure of the upper shell is avoided, the detachable structure is composed of the detachable groove, the connecting screw rod, the connecting block, the connecting through hole and the detachable nut, the detachable structure is simple, the manufacturing cost is low, the detachment work is convenient, fast and efficient, and the convenience of the maintenance or overhaul work of the inner structure of the upper shell is improved.

4. The invention can separate through gravity settling when the flow is not large after being separated by the rotary separator, and can accelerate the separation speed by two stages of electrostatic coalescence electrodes when the flow is large or the separation speed needs to be improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a perspective view of a second embodiment of the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a perspective view of an inner housing in an embodiment of the present invention.

Fig. 4 is a cross-sectional view of the inner housing in the preferred embodiment of the invention.

Fig. 5 is a sectional view of the inner case in another direction in the embodiment of the present invention.

Fig. 6 is an enlarged view at a in fig. 1.

Fig. 7 is an enlarged view at B in fig. 1.

Fig. 8 is an enlarged view of the disassembled nut shown at B in fig. 1 after it is loosened.

Fig. 9 is an exploded view of the first embodiment of the present invention.

FIG. 10 is a schematic flow diagram of the three-phase separation of the present invention.

In the figure, the electrostatic coalescence electrode comprises an outer shell 1, a support frame 2, a support frame 3, an oil-gas-water input valve 4, a gas valve 5, an upper shell 6, a cover plate 7, an oil valve 8, a water valve 9, a connecting port 10, a spiral-flow type preseparator 11, a mist catcher 12, an inner shell 13, a partition plate 14, a butt-joint screw rod 15, a butt-joint screw rod 16, a limit nut 17, an operation groove 18, a disassembly groove 19, a connecting screw rod 20, a disassembly nut 21, a connecting block 22 and a connecting through hole 23.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

The first embodiment is as follows:

fig. 9 shows an oil-gas-water three-phase separator with an electrostatic coalescence electrode, which is a first embodiment of the invention. The three-phase separator comprises an outer shell 1, a cavity is arranged in the outer shell 1, and the top of the outer shell 1 is connected with a cyclone type preseparator 10. The top of the outer shell 1 is provided with a connecting port 9, the bottom of the spiral-flow type preseparator 10 is provided with a liquid outlet, and the liquid outlet is flush with the bottom end of the connecting port 9. The bottom of the cyclone preseparator 10 is communicated with the cavity, and the top is fixed with a mist catcher 11.

The outer shell 1 is covered with an upper shell 5 corresponding to the cyclone preseparator 10. Go up the casing 5 and be equipped with oil gas water input valve 3 and air valve 4, oil gas water input valve 3 and cyclone preseparator 10 intercommunication, air valve 4 then corresponds the space of intercommunication mist trap 11 top.

One side wall of the outer shell 1 corresponding to the cavity is provided with an opening, the opening end is detachably connected with an inner shell 12, and the side of the inner shell 12 corresponding to the opening end is fixedly provided with a cover plate 6. The fixed side of the cover plate 6 is set as the front end of the inner shell 12, the side opposite to the cover plate 6 is set as the rear end of the inner shell 12, and the two sides of the cover plate 6 are the two sides of the inner shell 12. The outer shell 1 is detachably connected with the cover plate 6.

The detachable structure is as follows:

the outer end of the side wall of the outer shell 1 corresponding to the two sides of the opening is respectively provided with an operation groove 17, a butt joint screw 14 is fixed in the operation groove 17, and the outer end of the butt joint screw 14 is provided with threads and is connected with a limit nut 16 through the threads. An abutting screw 15 is fixed on the cover plate 6 corresponding to the butt joint screw 14, one end of the abutting screw 15 is fixed with the cover plate 6, the other end of the abutting screw points to the butt joint screw 14, and the abutting screw 15 is consistent with the butt joint screw 14 in thread and is in threaded connection with a limiting nut 16.

The limit nut 16 is usually in threaded connection with the outer end of the butt joint screw rod 14, when the inner shell 12 and the fixed cover plate 6 need to be folded, the butt joint screw rod 15 and the butt joint screw rod 14 are aligned and abutted, and the limit nut 16 is rotated towards the butt joint screw rod 15, so that one end of the limit nut 16 is in threaded connection with the butt joint screw rod 14, the other end of the limit nut is in threaded connection with the butt joint screw rod 15, namely the same limit nut 16 is synchronously connected with the two screw rods, and the relative positioning of the cover plate 6 and the outer shell 1 is realized. When the cover plate is disassembled for cleaning, the operation is reversed, the limiting nut 16 is rotated towards the butt screw 14, so that the limiting nut 16 is separated from the butt screw 15, the locking of the cover plate 6 is released, and the cover plate 6 and the inner shell 12 are conveniently pulled outwards.

The upper portion of apron 6 is equipped with oil valve 7, the lower part is equipped with water valve 8, and interior casing 12 is close to apron 6 one side and is fixed with baffle 13, baffle 13 separates oil valve 7 and water valve 8.

The electrostatic coalescence electrode 23 is provided below the inner case 12 corresponding to the partition 13. The structure of baffle 13 sets up to the L type, and baffle 13 is the L type plate member structure that sets up along the lid horizontal direction, including horizontal portion and longitudinal portion, horizontal portion one end is fixed with apron 6 medial extremity end, and the longitudinal portion is fixed at the other end of horizontal portion and upwards extends, and highly is less than apron 6 height.

The electrostatic coalescence electrode 23 is arranged along the horizontal direction, the distance between the two sides of the electrostatic coalescence electrode 23 and the inner walls of the two sides of the inner shell 12 is 1/5 of the whole length of the inner shell 12, enough space is reserved for liquid flowing, the separation speed is accelerated, and the electrostatic coalescence electrode 23 is communicated with the cover plate 6 and the inner wall of the rear end of the inner shell 12 opposite to the cover plate 6.

The specific operation and separation flow of the three-phase separator is shown in fig. 10, and specifically includes:

opening oil gas water input valve 3, input liquid into spiral-flow type preseparator 10 through oil gas water input valve 3 and the import of spiral-flow type preseparator 10, spiral-flow type preseparator 10 carries out the spiral-flow type separation to liquid, separate gas and liquid, gas after the separation is discharged through the gas outlet of spiral-flow type preseparator 10, collect by air valve 4 after the mist trap 11, liquid after the separation is discharged through the liquid outlet of spiral-flow type preseparator 10, get into interior casing 12, the liquid in interior casing 12 appears the water oil separating phenomenon because water oil density is different, accelerate oil-water separation's speed through electrostatic coalescence electrode 23, oil can cross baffle 13 when oil-water separation arrives a certain time, open oil valve 7 and water valve 8 respectively, oil after the separation is discharged by oil valve 7, water after the separation is discharged by water valve 8.

When the inner wall and the bottom silt of the inner shell 12 need to be cleaned after long-term use, the two limit nuts 16 are reversely screwed, the two limit nuts 16 move towards the direction far away from the corresponding butting screw rods 15 on the corresponding butting screw rods 14 respectively, until the two limit nuts 16 are only on the corresponding butting screw rods 14 respectively, the two limit nuts 16 are stopped being screwed, and at the moment, the limit nuts 16 lose the limiting effect on the butting screw rods 15 of the cover plate 6. Can pull apron 6, with apron 6 to the direction removal of keeping away from shell body 1, apron 6 drives interior casing 12 and removes to the equidirectional, and up to interior casing 12's scope that breaks away from shell body 1, stop to remove apron 6, interior casing 12 is inside to expose completely, can clear up inner wall and the bottom silt particle of interior casing 12 this moment, and convenient and fast is high-efficient.

Example two:

in order to support the three-phase separator from both sides and improve the safety of use, the present application further has a second embodiment as shown in fig. 1 to 8. In the second embodiment, a supporting frame 2 is further provided on the basis of the three-phase separator provided in the first embodiment. Go up 5 both sides of casing and still can dismantle respectively promptly and be connected with support frame 2, support frame 2 one end can dismantle with last casing 5 and be connected, and the other end sets up outside outer casing 1 and supports with the holding surface of below.

As shown in fig. 7 and 8, the detachable connection between the support frame 2 and the upper case 5 is achieved by a screw connection. The upper shell 5 is symmetrically provided with dismounting grooves 18 at two sides, connecting screws 19 are fixed in the dismounting grooves 18, connecting blocks 21 are fixed on the supporting frame 2 corresponding to the connecting end faces of the upper shell 5, the connecting blocks 21 are provided with connecting through holes 22 matched with the connecting screws 19, the connecting blocks 21 are in plug-in fit with the connecting screws 19 through the connecting through holes 22, dismounting nuts 20 are connected to the connecting screws 19 in a threaded manner, and the dismounting nuts 20 abut against the connecting blocks 21 to be tightly pressed on the upper shell 5.

Two support frames 2 can the auxiliary stay go up casing 5, and oil gas water three-phase separator because the heavy lower part in upper portion leads to the problem emergence of empting when avoiding interior casing 12 to dismantle the clearance, improves oil gas water three-phase separator's safety in utilization.

When long-term use needs to be maintained or overhauld the structure in last casing 5, dismantle two assembly and disassembly nuts 20, remove two support frames 2 to the direction that is close to apron 6, two support frames 2 drive and correspond connecting block 21 and remove to the equidirectional, connecting hole 22 on two connecting blocks 21 breaks away from the scope of corresponding connecting screw rod 19 respectively, two support frames 2 of stop moving, two support frames 2 are taken off, the bolt in 5 bottoms of casing is gone up in the dismantlement, can maintain or overhaul the structure in last casing 5, convenient and fast is high-efficient.

In the two embodiments, the stop nut 16 and the dismounting nut 20 can be screwed by hands, and the screwing or unscrewing operation of the stop nut 16 and the dismounting nut 20 can be completed manually without using an external tool, so that the convenience and high efficiency of dismounting the cover plate 6 and the upper shell 5 are further improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.