阅读说明：本技术 一种井下油水膜分离器 (Underground oil-water membrane separator ) 是由 杨碧美 于 2021-02-04 设计创作，主要内容包括：本发明提供一种井下油水膜分离器,结构包括底板、支撑架、分离器、回注阀、抽取阀,分离器包括顶环、中柱、分离膜、进油管,本发明通过环圈轮内的膜盘经过多层过滤使得设备的过滤负载减少,并由架接块内侧的环圈轮对壁面清洁,通过倒扣块为底环固定,且利用固定板内边的弹簧在油水喷涌时为连接盘下端的挡流块提供减压力,通过降低流速让油水在经过挡流块后被隔层块分流再流进底环,从而减少分离器的负荷,同时本发明中通过下接环中的电环管为联结杆供电,从而使架合块带动顶刮器,由清洁轮对壁面清洗使得油脂能够被水分顺带抽出,且利用清洁轮下部的底架杆与联接轴配合,让摩擦轮通过双向旋转不间断的对壁面刮擦,从而防止油脂残留。(The invention provides an underground oil-water membrane separator, which structurally comprises a bottom plate, a support frame, a separator, a reinjection valve and an extraction valve, wherein the separator comprises a top ring, a middle column, a separation membrane and an oil inlet pipe, the filtering load of equipment is reduced by multilayer filtering of a membrane disc in a ring wheel, the wall surface of the ring wheel on the inner side of a frame connecting block is cleaned, the bottom ring is fixed by a reverse buckling block, a flow blocking block at the lower end of the connecting disc is provided with reduced pressure when oil and water gush out by utilizing a spring on the inner side of a fixed plate, oil and water are shunted by the flow blocking block and then flow into the bottom ring after passing through the flow blocking block by reducing the flow speed, so that the load of the separator is reduced, meanwhile, the electric ring pipe in the lower ring is used for supplying power to a connecting rod, so that the frame connecting block drives a top scraper, the wall surface of the cleaning wheel is cleaned, grease can be extracted along a belt by water, the friction wheel continuously scrapes the wall surface through bidirectional rotation, thereby preventing grease residue.)

1. The utility model provides a profit membrane separator in pit, its structure includes bottom plate (1), support frame (2), separator (3), reinjection valve (4), extraction valve (5), bottom plate (1) welded connection is in support frame (2) lower extreme, support frame (2) welded connection is in separator (3) lower part side, separator (3) side and reinjection valve (4) gomphosis are connected, extraction valve (5) flange joint is on separator (3) top, its characterized in that:

separator (3) include apical ring (31), center pillar (32), separating membrane (33), advance oil pipe (34), apical ring (31) are embedded solid and are connected on center pillar (32) top, center pillar (32) gomphosis is connected between separating membrane (33), separating membrane (33) lower extreme and advance oil pipe (34) cooperation and be connected.

2. The downhole oil and water membrane separator of claim 1, wherein: the separation membrane (33) comprises an erection block (331), a membrane disc (332), a ring wheel (333) and an outer ring (334), the erection block (331) is connected to the side end of the outer ring (334) in a penetrating and riveting mode, the side end of the membrane disc (332) is connected with the erection block (331) in a welding mode, the ring wheel (333) is fixedly connected to the inner side of the outer ring (334) in an embedded mode, and the middle of the outer ring (334) is connected with the membrane disc (332) in an embedded mode.

3. The downhole oil and water membrane separator of claim 2, wherein: the membrane disc (332) comprises a connecting disc (a 1), a spring (a 2), a fixing plate (a 3) and a contact block (a 4), the lower end of the connecting disc (a 1) is connected with the fixing plate (a 3) in a welding mode, the spring (a 2) is movably clamped at the top end of the contact block (a 4), the fixing plate (a 3) is fixedly connected to the side end of the spring (a 2) in an embedding mode, and the contact block (a 4) is connected to the bottom end of the fixing plate (a 3) in an embedding mode.

4. The downhole oil and water membrane separator of claim 3, wherein: the contact block (a 4) comprises a reverse block (a 41), a bottom ring (a 42) and a flow baffle plate (a 43), the reverse block (a 41) is connected to the top end of the bottom ring (a 42) in a welding mode, and the inside of the bottom ring (a 42) is connected with the flow baffle plate (a 43) in a embedding mode.

5. The downhole oil and water membrane separator of claim 2, wherein: the ring wheel (333) comprises a lower connecting ring (b 1), an electric ring pipe (b 2), a top scraper (b 3) and an upper ring wall (b 4), wherein the lower connecting ring (b 1) is connected to the bottom end of the upper ring wall (b 4) in a welding mode, the electric ring pipe (b 2) is connected to the inside of the lower connecting ring (b 1) in a penetrating and embedding mode, and the top scraper (b 3) is movably connected to the upper side of the inside of the upper ring wall (b 4).

6. The downhole oil and water membrane separator of claim 5, wherein: the top scraper (b 3) comprises a connecting rod (b 31), an assembling block (b 32) and a cleaning wheel (b 33), wherein the connecting rod (b 31) is fixedly connected to the bottom end of the assembling block (b 32), and the middle part of the assembling block (b 32) is movably clamped with the cleaning wheel (b 33).

7. The downhole oil and water membrane separator of claim 6, wherein: the cleaning wheel (b 33) comprises a bottom frame rod (c 1), a coupling shaft (c 2) and a friction wheel (c 3), wherein the bottom frame rod (c 1) is connected to the lower end of the friction wheel (c 3) in a welding mode, and the coupling shaft (c 2) is connected to the middle of the inner side of the friction wheel (c 3) in a fitting mode.

Technical Field

The invention relates to the technical field of membrane separation equipment, in particular to an underground oil-water membrane separator.

Background

The oil-water membrane separator is a device which is arranged in an oil well and used for separating and discharging water and crude oil, is widely applied to industries such as petrochemical industry and the like, and quickly separates oil and water through a hydrocyclone and divides the water into water and water to be injected to the ground bottom, thereby simultaneously realizing water injection and oil extraction.

The oil-water membrane separator in the pit in the prior art is characterized in that oil and water flow out in a gushing mode, the output quantity of the oil-water membrane separator is too large, the operation speed of the separator is accelerated, crude oil in the oil and water is insufficiently extracted by the separator, the load of the separator is increased due to continuous inflow of the oil and water, the loss of an oil-water mixture which is not completely filtered is caused, the oil and water which are not separated contain grease, the grease can flow out along a water pumping pipe and adhere to the inner side of the pipe wall, and the backflow of water flow is not smooth due to blocking in the pipe.

Summary of the invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a downhole oil-water membrane separator, which aims to solve the using problem that the output quantity is too large, the operation speed of the separator is increased, crude oil is insufficiently extracted, the load of the separator is increased, the loss of an oil-water mixture which is not completely filtered is caused, and the contained oil is adhered to the inner side of the pipe wall, so that the pipe is blocked.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an oil water membrane separator in pit, its structure includes bottom plate, support frame, separator, reinjection valve, extraction valve, bottom plate welded connection is at the support frame lower extreme, support frame welded connection is at separator lower part side, the separator side is connected with the reinjection valve gomphosis, extraction valve flange joint is on the separator top, the separator includes apical ring, center pillar, separation membrane, advances oil pipe, the apical ring inlays solid connection on the center pillar top, the center pillar gomphosis is connected between the separation membrane, the separation membrane lower extreme with advance oil pipe cooperation and be connected.

Preferably, the separation membrane comprises a frame joint block, membrane discs, a ring wheel and an outer ring, the frame joint block penetrates through and is connected to the side end of the outer ring in a riveting mode, the side end of each membrane disc is connected with the frame joint block in a welding mode, the ring wheel is fixedly connected to the inner side of the outer ring in an embedded mode, the middle of the outer ring is connected with the membrane discs in an embedded mode, the number of the membrane discs is six, and the membrane discs are divided into two sides and are arranged at equal intervals.

Preferably, the membrane disc includes connection pad, spring, fixed plate, contact piece, connection pad lower extreme and fixed plate welded connection, spring activity block is on contact piece top, the fixed plate embedded connection is at the spring side, contact piece gomphosis is connected in the fixed plate bottom, the spring is total two, and sets up on the fender stream piece top.

Preferably, the contact block comprises a reverse-buckling block, a bottom ring and a flow baffle plate, the reverse-buckling block is welded at the top end of the bottom ring, the inside of the bottom ring is connected with the flow baffle plate in an embedded mode, the flow baffle plate is of an annular structure, and a partition block is arranged on the inner side of the flow baffle plate.

Preferably, the annular wheel comprises a lower connecting ring, an electric ring pipe, a top scraper and an upper annular wall, the lower connecting ring is connected to the bottom end of the upper annular wall in a welding mode, the electric ring pipe penetrates through and is connected inside the lower connecting ring in an embedded mode, the top scraper is movably connected to the upper side inside the upper annular wall, the top scraper is provided with a disc plate, and an arc-shaped corner block is arranged between the top scraper and the upper annular wall.

Preferably, the top scraper comprises a connecting rod, an erection block and a cleaning wheel, the connecting rod is fixedly embedded at the bottom end of the erection block, the middle part of the erection block is movably clamped with the cleaning wheel, and the cleaning wheel is arranged at the top end of the erection block and can rotate up and down in two directions.

Preferably, the cleaning wheel comprises a bottom frame rod, a connecting shaft and a friction wheel, the bottom frame rod is connected to the lower end of the friction wheel in a welding mode, the connecting shaft is connected to the middle of the inner side of the friction wheel in an embedded mode, the friction wheel is oppositely arranged on the bottom frame rod, and a brush is arranged on the outer side of the friction wheel.

(II) advantageous effects

The invention provides an underground oil-water membrane separator. The method has the following beneficial effects:

1. according to the invention, the membrane disc in the ring wheel is subjected to multi-layer filtration, so that the filtration load of the device is reduced, the wall surface of the ring wheel on the inner side of the erection block is cleaned, the bottom ring is fixed by the reversing block, the spring on the inner side of the fixing plate is used for providing reduced pressure for the flow blocking block at the lower end of the connecting disc when oil and water are sprayed, and the oil and water are shunted by the interlayer block and flow into the bottom ring after passing through the flow blocking block by reducing the flow speed, so that the load of the separator is reduced.

2. According to the invention, the connecting rod is powered by the electric ring pipe in the lower connecting ring, so that the erection block drives the top scraper, the cleaning wheel cleans the wall surface to enable grease to be drawn out along the water, and the friction wheel continuously scrapes the wall surface through bidirectional rotation by utilizing the matching of the bottom frame rod at the lower part of the cleaning wheel and the connecting shaft, so that grease residue is prevented.

Drawings

FIG. 1 is a schematic structural diagram of a downhole oil-water membrane separator according to the present invention;

FIG. 2 is a schematic diagram of the separator of the present invention;

FIG. 3 is a schematic view of the structure of a separation membrane according to the present invention;

FIG. 4 is a schematic structural view of a membrane disc according to the present invention;

FIG. 5 is a schematic view of a contact block according to the present invention;

FIG. 6 is a schematic view of the structure of the ring wheel of the present invention;

FIG. 7 is a schematic view of the construction of the top scraper of the present invention;

FIG. 8 is a schematic view of the cleaning wheel of the present invention;

in the figure: the device comprises a bottom plate-1, a support frame-2, a separator-3, a reinjection valve-4, an extraction valve-5, a top ring-31, a central column-32, a separation membrane-33, an oil inlet pipe-34, a frame joint block-331, a membrane disc-332, a ring wheel-333, an outer ring-334, a connecting disc-a 1, a spring-a 2, a fixing plate-a 3, a contact block-a 4, an inverted buckle block-a 41, a bottom ring-a 42, a flow blocking block-a 43, a lower connecting ring-b 1, an electric ring pipe-b 2, a top scraper-b 3, an upper ring wall-b 4, a connecting rod-b 31, a frame joint block-b 32, a cleaning wheel-b 33, an underframe rod-c 1, a connecting shaft-c 2 and a friction wheel-c 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 to 5, the embodiment of the invention provides a downhole oil-water membrane separator, which structurally comprises a bottom plate 1, a support frame 2, a separator 3, a reinjection valve 4 and an extraction valve 5, wherein the bottom plate 1 is welded and connected to the lower end of the support frame 2, the support frame 2 is welded and connected to the side edge of the lower portion of the separator 3, the side end of the separator 3 is in embedded connection with the reinjection valve 4, the extraction valve 5 is flanged and connected to the top end of the separator 3, the separator 3 comprises a top ring 31, a center pillar 32, a separation membrane 33 and an oil inlet pipe 34, the top ring 31 is embedded and connected to the top end of the center pillar 32, the center pillar 32 is embedded and connected between the separation membranes 33, and the lower end of the separation.

Wherein, the separation membrane 33 includes bridging piece 331, membrane disc 332, ring wheel 333, outer lane ring 334, bridging piece 331 runs through the riveting and connects at outer lane ring 334 side, membrane disc 332 side connects piece 331 welded connection with the frame, ring wheel 333 inlays the solid connection at outer lane ring 334 inboard, outer lane ring 334 middle part is connected with membrane disc 332 gomphosis, membrane disc 332 is total six, and divide into both sides and equidistance setting, makes the filtration load of equipment reduce through multilayer filtration to let the oil-water filtration more complete.

The membrane disc 332 comprises a connecting disc a1, a spring a2, a fixing plate a3 and a flow blocking block a4, the lower end of the connecting disc a1 is connected with the fixing plate a3 in a welding mode, the spring a2 is movably clamped at the top end of the contact block a4, the fixing plate a3 is fixedly connected to the side end of the spring a2 in a embedding mode, the contact blocks a4 are connected to the bottom end of the fixing plate a3 in a embedding mode, the number of the springs a2 is two, the springs a2 are arranged at the top end of the flow blocking block a4, and the springs a2 provide pressure reduction for the flow blocking block a4 during oil-water gushing, so that the flow.

The contact block a4 comprises a reverse block a41, a bottom ring a42 and a flow baffle a43, the reverse block a41 is connected to the top end of the bottom ring a42 in a welding mode, the inner portion of the bottom ring a42 is connected with the flow baffle a43 in a embedding mode, the flow baffle a43 is of an annular structure, a partition block is arranged on the inner side of the flow baffle a43, oil and water of the oil and water flow into the bottom ring a42 after speed reduction and are divided by the partition block, and therefore load of the membrane network is reduced.

The specific working process is as follows:

in the invention, a separator 3 is fixed in an oil well by a bottom plate 1 and a support frame 2, oil and water are divided into two parts by a central column 32 from an oil inlet pipe 34 and input into a separation membrane 33 for filtration, moisture of the oil and water is independently input into a reinjection valve 4, the residual crude oil is discharged out of the equipment by an extraction valve 5, the filtration load of the equipment is reduced by multilayer filtration through a membrane disc 332 in a ring wheel 333, the wall surface is cleaned by the ring wheel 333 in the frame joint block 331, the oil and water are fixed by a bottom ring a42 through a back-off block a41, a flow blocking block a4 at the lower end of a connecting disc a1 is provided with reduced pressure when the oil and water are sprayed by a spring a2 in a fixing plate a3, and the oil and water are divided by an interlayer block and then flow into the bottom ring a42 after passing through a flow blocking block a43 by reducing the flow rate.

Example 2

As shown in fig. 6 to 8, the embodiment of the invention provides a downhole oil-water membrane separator,

the ring wheel 333 includes a lower connecting ring b1, an electric ring b2, a top scraper b3 and an upper ring wall b4, the lower connecting ring b1 is connected to the bottom end of the upper ring wall b4 in a welding manner, the electric ring b2 is connected to the inside of the lower connecting ring b1 in a penetrating and embedding manner, the top scraper b3 is movably connected to the upper side of the inside of the upper ring wall b4, the top scraper b3 is provided with a disk plate, an arc-shaped corner block is arranged between the top scraper b3 and the upper ring wall b4, and the top scraper b3 prevents grease from falling into the inside of the upper ring wall b4 during rotary scraping.

The top scraper b3 comprises a connecting rod b31, an assembling block b32 and a cleaning wheel b33, wherein the connecting rod b31 is fixedly connected to the bottom end of the assembling block b32 in an embedded mode, the middle of the assembling block b32 is movably clamped with the cleaning wheel b33, the cleaning wheel b33 is arranged at the top end of the assembling block b32 and can rotate in the vertical and horizontal directions, and the cleaning wheel b33 cleans the wall surface to enable grease to be extracted by moisture along the belt, so that the uncleaned grease can be effectively utilized.

The cleaning wheel b33 comprises a bottom frame rod c1, a coupling shaft c2 and a friction wheel c3, wherein the bottom frame rod c1 is connected to the lower end of the friction wheel c3 in a welding mode, the coupling shaft c2 is connected to the middle of the inner side of the friction wheel c3 in a embedding mode, the friction wheel c3 is oppositely arranged on a bottom frame rod c1, a hairbrush is arranged on the outer side of the friction wheel c3, and the hairbrush can rotate bidirectionally and continuously scrape the wall surface, so that grease is prevented from remaining.

The specific working process is as follows:

in the invention, an electric ring tube b2 in a lower connecting ring b1 supplies power to a connecting rod b31 in an upper ring wall b4, so that a frame joint block b32 drives a top scraper b3, the wall surface is cleaned by a cleaning wheel b33, grease can be pumped out along the water, a bottom frame rod c1 at the lower part of the cleaning wheel b33 is used for enabling a cleaning wheel b33 to rotate in parallel, the cleaning wheel b33 rotates by a connecting shaft c2, and the friction wheel c3 continuously scrapes the wall surface through bidirectional rotation by matching of the cleaning wheel b1 and the connecting shaft c2, so that grease residue is prevented.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.