CN205077011U - A foamy crude oil three-phase separator - Google Patents

Abstract

The utility model relates to the field of machinary, a foam crude oil three-phase separator is disclosed to solve among the prior art to the not good technical problem of foam crude oil's three-phase separation effect. The separator includes: a tank body; a first support; a second support; five sand collecting hoppers; the partition plate divides the tank body into a first tank body space and a second tank body space, and the second tank body space is divided into an oil chamber and a water chamber; an oil outlet pipe; a water outlet pipe; a first mist trap; a second mist trap; connecting pipes; an oil-gas-water inlet pipe; a downcomer comprising: the device comprises a first pipe body, a second pipe body arranged at the bottom of the first pipe body and a third pipe body arranged at the bottom of the second pipe body; a liquid distribution pipe; two sieve plate type defoaming structures; a flap-type mist trap; the fin type heat exchange defoaming device penetrates through the two sieve plate type defoaming structures. The technical effects of improving the separation degree of oil-gas separation and the dehydration efficiency of crude oil are achieved.

Description

A foamy crude oil three-phase separator

technical field

The utility model relates to the field of machinery, in particular to a three-phase separator for foamed crude oil.

Background technique

In the process of oil field production, the dehydration of conventional crude oil usually adopts the method of gravity sedimentation for three-phase separation of oil, gas and water. Substances and components, they can be adsorbed on the surface of oil-water or gas-liquid, and have a stabilizing effect on liquid droplets or bubbles, resulting in the emulsification and foaming of crude oil. During the dehydration process of crude oil, the dissolved bubbles precipitated from crude oil rise to After the crude oil liquid level, a stable foam layer is formed on the crude oil liquid level, causing a false liquid level in the separator, making it difficult to control the liquid level of the separator, resulting in incomplete oil-water separation, affecting the separation efficiency, and the separated crude oil contains water Higher rate will affect the dehydration effect of the next stage. At the same time, the air bubbles carrying crude oil are easy to enter the exhaust channel, affecting the treatment of natural gas.

It can be seen that the three-phase separator of oil, gas and water in the prior art has technical limitations on the treatment of foamed crude oil, which causes the technical problem that the three-phase separation effect of crude oil is not good, which is specifically reflected in: the water content of the separated crude oil Higher, the separated natural gas liquid droplets are larger and so on.

Utility model content

The utility model provides a foamed crude oil three-phase separator to solve the technical problem in the prior art that the three-phase separation effect of the foamed crude oil is not good.

The utility model provides a foamy crude oil three-phase separator, comprising:

tank;

The first support is arranged on the first side of the bottom of the tank;

The second support is arranged on the second side of the bottom of the tank, and the first side is opposite to the second side;

Five sand collection buckets are arranged horizontally between the first support and the second support, and the five sand collection buckets are welded to the tank body and extend into the tank body;

The partition is arranged longitudinally inside the tank body, and divides the tank body into a first tank body space and a second tank body space, and the second tank body space is divided into an oil chamber and a water chamber;

The oil outlet pipe is welded on the tank body and is located on the right side of the second support, and the oil outlet pipe extends into the inside of the tank body and connects with the oil chamber;

The water outlet pipe is welded on the tank body and located on the right side of the second support, and the water outlet pipe extends into the inside of the tank body to connect with the water chamber;

The sewage outlet is welded on the tank body and located between the five sand collecting buckets and the second support, and the sewage outlet is connected to the inside of the tank body;

The first mist catcher is arranged on the first side of the top of the tank and communicates with the tank;

The second mist catcher is arranged on the second side of the top of the tank and communicates with the tank;

A connecting pipe connected to the first mist catcher and the second mist catcher;

The oil, gas and water inlet pipe is welded to the first side of the first mist catcher;

The downcomer is welded on the inside of the upper side of the tank and communicated with the first mist catcher. The downcomer includes: a first pipe body and a second pipe body arranged at the bottom of the first pipe body And a third pipe body arranged at the bottom of the second pipe body, wherein the diameter of the first pipe body is a first diameter, the diameter of the third pipe body is a second diameter, and the first diameter is larger than said second diameter;

A liquid distribution pipe, welded around the third pipe body and communicated with the downcomer;

Two sieve plate type defoaming structures, welded on the upper inner wall of the tank body, and located between the downcomer and the second mist catcher, the two sieve plate type defoaming structures and the tank There is a first through hole between the inner walls of the lower side of the body;

Folded plate mist catcher, welded on the upper inner wall of the tank body, and located between the two sieve plate type defoaming structures;

The finned heat exchange and defoaming device is welded on the side wall of the tank and extends into the inside of the tank, and the finned heat exchange and defoaming device is located on the upper side of the horizontal axis of the tank, the The finned heat exchange defoaming device passes through the two sieve plate type defoaming structures.

Optionally, the separator also includes:

a buffer baffle welded to the inner wall of the first side of the tank;

The buffer tray is located below the buffer baffle and welded to the lower inner wall of the tank body.

Optionally, the partition is at a preset distance from the top of the tank.

Optionally, the included angle between the oil-gas-water inlet pipe and the centerline of the first mist catcher is a preset angle value.

Optionally, the preset angle value is: 70°-80°.

Optionally, the separator also includes:

A safety valve is welded to the top of the tank and located between the first mist catcher and the second mist catcher.

Optionally, each sieve plate type defoaming structure includes:

a protective shell, the protective shell has openings;

The screen is arranged inside the protective shell.

Optionally, the finned heat exchange defoaming device includes:

Ontology;

The second through hole is arranged in the body, and the downcomer passes through the body;

heat exchange pipes arranged on the body;

The fins are arranged outside the heat exchange tubes.

Optionally, the separator also includes:

The first manhole is arranged in the tank body and is located between the two sieve plate type defoaming structures; and/or

The second manhole is arranged in the tank body and is located between the two sieve plate type defoaming structures and the partition plate.

Optionally, the separator also includes:

The liquid level regulator is arranged on the second side of the tank body.

Optionally, the separator also includes:

an oil level gauge, arranged inside the oil chamber, for detecting the liquid level of the oil chamber; and/or

The water level gauge is arranged inside the water chamber and is used to detect the liquid level of the water chamber.

Optionally, the liquid distribution pipes include four, and every two liquid distribution pipes form an angle of 90°.

The beneficial effects of the utility model are as follows:

In the embodiment of the utility model, the oil-gas-water mixture enters the first mist catcher tangentially from the oil-gas-water inlet to form a vortex, wherein the energy of the gas-liquid mixture itself generates rotational motion, and the centrifugal force generated by the vortex accelerates the gas-liquid separation, Shorten the time for the gas to overflow from crude oil; the gas after preliminary separation still contains a large number of small liquid droplets. After passing through the first mist catcher, the small liquid droplets entrained in the gas can be adsorbed and coalesced under the first mist catcher. This reduces the amount of liquid droplet entrainment in the gas. That is to say, two pre-separation processes can be provided for gas-liquid, one on the inclined inlet pipe section and the other on the first mist catcher;

Moreover, through the function of the downcomer and the liquid distribution pipe, the oil-gas-water mixture can be evenly entered into the tank, reducing the disturbance of the oil-gas-water mixture to the liquid level in the tank, which is beneficial to the separation of oil and water;

Then, the oil-gas-water mixture enters the settling area (that is, the space where the five sand collecting buckets are located), and the finned heat exchange and defoaming device goes deep below the liquid surface to heat the oil-gas-water mixture through heat exchange. When the mixture is precipitated, the liquid film around the bubbles is heated to accelerate the molecular movement in the film, thereby reducing the surface tension of the film and achieving the purpose of crude oil defoaming;

Moreover, the precipitated gas passes through the gravity settling area horizontally. When passing through the sieve plate type defoaming device, the sieve plate type defoaming device can further intercept and rupture the fine foam; The second mist catcher further intercepts the liquid droplets carried in the gas through the second mist catcher, and then flows out from the gas outlet at the top of the second mist catcher; the oil-water mixture is in the settlement area, relying on the oil-water density difference to separate the oil-water, sieve plate type The defoaming device also has the function of demulsification and coalescence of the oil-water mixture, increasing the oil-water separation effect, so that the upper part of the oil-water mixture is the crude oil and the crude oil emulsion layer, and the bottom is the separated water layer, among which the crude oil and the crude oil emulsion layer Flow from the partition to the oil chamber and discharge through the oil outlet; water enters the water chamber from the water guide pipe and discharges from the water outlet;

From the above analysis, it can be seen that in the embodiment of the utility model, the oil-gas-water mixture has been defoamed multiple times, which can more effectively promote foam rupture, thereby achieving the technical effect of improving the separation degree of oil-gas separation and crude oil dehydration efficiency.

Moreover, when the oil-air-water mixture enters the tank, it needs to pass through the buffer baffle with holes on the surface. The oil-air-water mixture flows evenly around through the holes on the buffer baffle, which can further reduce the pressure on the liquid surface after the oil-air-water mixture enters the tank. disturbance; the buffer tray under the buffer baffle also acts as a buffer, so as to prevent air bubbles from appearing in the oil-air-water mixture as much as possible.

Description of drawings

Fig. 1 is the structural representation of foamed crude oil three-phase separator in the utility model embodiment;

Fig. 2 is the right side B-B sectional view of foamed crude oil three-phase separator in the utility model embodiment;

Fig. 3 is the top view of the structure of the finned heat exchange and defoaming device of the foamed crude oil three-phase separator in the embodiment of the present invention;

Fig. 4 is a schematic diagram of the positional relationship between the heat exchange pipes and the fins in the structure of the finned heat exchange and defoaming device;

Fig. 5 is the A-A sectional schematic diagram of the sieve plate type defoaming structure of the foamed crude oil three-phase separator in the utility model embodiment;

6 is a schematic diagram of the internal structure of the sieve plate type defoaming structure of the foamed crude oil three-phase separator in the embodiment of the present invention;

Fig. 7 is a sectional view of the downcomer of the foamed crude oil three-phase separator in the embodiment of the utility model.

detailed description

The utility model provides a foamed crude oil three-phase separator to solve the technical problem in the prior art that the three-phase separation effect of the foamed crude oil is not good.

The technical solution in the embodiment of the present application is to solve the above-mentioned technical problems, and the general idea is as follows:

A foam crude oil three-phase separator is provided, comprising: a tank body; a first support arranged on the first side of the bottom of the tank body; a second support arranged on the second side of the bottom of the tank body, the The first side is opposite to the second side; five sand collection buckets are arranged horizontally between the first support and the second support, and the five sand collection buckets are welded to the tank body and extend into the inside of the tank body; the partition is longitudinally arranged inside the tank body, and divides the tank body into a first tank body space and a second tank body space, and the second tank body space is divided into Oil chamber and water chamber; oil outlet pipe, welded on the tank body and located between the five and sand collection buckets and the second support, the oil outlet pipe extends into the inside of the tank body and The oil chambers are connected; the water outlet pipe is welded on the tank body and is located between the five sand collecting buckets and the second support, and the water outlet pipe extends into the inside of the tank body and The water chamber is connected; the first mist catcher is arranged on the first side of the top of the tank and communicates with the tank; the second mist catcher is arranged on the second side of the top of the tank and communicates with the tank The tanks are communicated; the connecting pipe is connected to the first mist catcher and the second mist catcher; the oil, gas and water inlet pipe is welded to the first side of the first mist catcher; the downcomer, Welded on the inside of the upper side of the tank and communicated with the first mist catcher, the downcomer includes: a first pipe body, a second pipe body arranged at the bottom of the first pipe body, and a second pipe body arranged at the bottom of the first pipe body The third pipe body at the bottom of the second pipe body, wherein the diameter of the first pipe body is a first diameter, the diameter of the third pipe body is a second diameter, and the first diameter is larger than the second pipe body Diameter; liquid distribution pipe, welded around the third pipe body and communicated with the downcomer; two sieve plate type defoaming structures, welded on the upper inner wall of the tank body, and located in the downcomer and the second mist catcher, there is a first through hole between the two sieve plate type defoaming structures and the lower inner wall of the tank body; the folded plate mist catcher is welded on the upper side of the tank body The inner wall is located between the two sieve plate type defoaming structures; the finned heat exchange defoaming device is welded on the side wall of the tank and extends into the inside of the tank, and the finned heat exchange defoamer The foaming device is located on the upper side of the horizontal axis of the tank body, and the finned heat exchange defoaming device passes through the two sieve plate type defoaming structures. Furthermore, multiple defoaming can be performed on the oil-gas-water mixture, which can more effectively promote foam rupture, thereby achieving the technical effect of improving the separation degree of oil-gas separation and the dehydration efficiency of crude oil.

In order to better understand the above-mentioned technical solution, the technical solution of the utility model will be described in detail below through the accompanying drawings and specific examples. To illustrate, rather than to limit the technical solution of the utility model, the embodiments of the utility model and the technical features in the embodiments can be combined with each other under the condition of no conflict.

The utility model provides a foam crude oil three-phase separator, please refer to Figure 1 and Figure 2, including:

A tank body 1, the tank body 1 is, for example, a cylindrical tank body 1, and the sides of the cylindrical tank body 1 are placed horizontally;

The first support 29 is arranged on the first side of the bottom of the tank body 1;

The second support 30 is arranged on the second side of the bottom of the tank body 1, the first side is opposite to the second side, for example: the first side is the left side of the tank body 1, and the second side is the tank body 1 On the right side, the first support 29 and the second support 30 are used to support the tank body 1;

Five sand collection buckets 5 are arranged horizontally between the first support 29 and the second support 30, and the five sand collection buckets 5 are welded to the tank body 1 and extend into the tank Inside body 1;

The partition 18 is longitudinally arranged inside the tank body 1, and divides the tank body 1 into a space of the first tank body 1 and a space of the second tank body 1, and the space of the second tank body 1 is divided into an oil chamber 6 And the water chamber 7, the partition 18 is arranged along the circumferential direction of the tank body 1, wherein, there is a preset distance between the partition 18 and the top of the tank body 1 for liquid circulation, for example, if the height of the tank body 1 is 3m, then The partition 18 can be 0.7m from the top of the tank body 1 (that is, the preset distance can be 0.7m). Of course, in the actual implementation process, based on different requirements, the distance between the partition 18 and the top of the tank body 1 is also different. The embodiment of the utility model is not limited. The water chamber 7 is connected to the crude oil settling area through the water guide pipe 19 at the bottom of the water chamber 7, and the separated crude oil flows into the oil chamber 6 through the space above the partition plate 18;

The oil outlet pipe 22 is welded on the tank body 1 and is located on the right side of the second support 30, and the oil outlet pipe 22 extends into the tank body 1 and is connected with the oil chamber 6;

The water outlet pipe 21 is welded on the tank body 1 and located on the right side of the second support 30, and the water outlet pipe 21 extends into the inside of the tank body 1 and is connected with the water chamber 7;

The sewage outlet 20 is welded on the tank body 1 and located between the five sand collecting buckets 5 and the second support 30, and the sewage outlet 20 is connected to the inside of the tank body 1;

The first mist catcher 8 is arranged on the first side of the top of the tank body 1 and communicates with the tank body 1;

The second mist catcher 9 is arranged on the second side of the top of the tank body 1 and communicates with the tank body 1;

A connecting pipe 10 connected to the first mist catcher 8 and the second mist catcher 9;

The oil, gas and water inlet pipe 11 is welded to the first side of the first mist catcher 8;

The downcomer 15 is welded to the inside of the upper side of the tank body 1 and communicated with the first mist catcher 8. The downcomer 15 includes: a first pipe body, a bottom pipe arranged at the bottom of the first pipe body The second pipe body and the third pipe body arranged at the bottom of the second pipe body, wherein the diameter of the first pipe body is the first diameter, the diameter of the third pipe body is the second diameter, and the The first diameter is greater than the second diameter, wherein the second pipe body is a section of reduced diameter pipe body, the diameter of which changes from the first diameter to the second diameter, so that the downcomer 15 is in a non-equal-diameter cylindrical shape;

The liquid distribution pipe 15a is welded around the third pipe body and communicated with the downcomer 15;

Two sieve plate type defoaming structures 16 are welded on the upper inner wall of the tank body 1 and are located between the downcomer 15 and the second mist catcher. The two sieve plate type defoaming structures 16 There is a first through hole between the lower inner wall of the tank body 1, wherein the two sieve plate type defoaming structures 16 are perpendicular to the axis of the tank body 1;

Folded plate mist catcher 17, welded on the upper inner wall of the tank body 1, and located between the two sieve plate type defoaming structures 16;

The finned heat exchange defoaming device 14 is welded on the side wall of the tank body 1 and extends into the inside of the tank body 1, and the finned heat exchange defoaming device 14 is located at the horizontal axis of the tank body 1 On the upper side, the finned heat exchange and defoaming device 14 passes through the two sieve plate type defoaming structures 16, so that the finned heat exchanging and defoaming device 14 can cover most of the crude oil settlement area.

When the separator is in use, the oil-gas-water mixture tangentially enters the first mist catcher 8 from the oil-gas-water inlet to form a vortex, in which, the energy of the gas-liquid mixture is used to generate rotational motion, and the centrifugal force generated by the vortex accelerates the separation of the gas and liquid, shortening the gas flow. Time to overflow from crude oil; a large number of small liquid droplets are still entrained in the gas after preliminary separation, after passing through the first mist catcher 8, the small liquid droplets entrained in the gas can be adsorbed and coalesced under the first mist catcher 8, This reduces the amount of liquid droplet entrainment in the gas. That is to say, two pre-separation processes can be provided for gas-liquid, one on the inclined inlet pipe section, and the other on the first mist catcher 8;

Moreover, through the action of the downcomer 15 and the liquid distribution pipe 15a, the oil-gas-water mixture can be evenly entered into the tank body 1, reducing the disturbance of the oil-gas-water mixture to the liquid level in the tank body 1, which is beneficial to the separation of oil and water;

Then, the oil-gas-water mixture enters the settlement zone 3, and the finned heat exchange and defoaming device 14 goes deep below the liquid surface to heat the oil-gas-water mixture through heat exchange. When the gas is separated from the oil-gas-water mixture, the liquid around the bubbles is heated. The membrane accelerates the molecular movement in the membrane, thereby reducing the surface tension of the membrane and achieving the purpose of crude oil defoaming;

Moreover, the precipitated gas passes through the gravity settling area horizontally. When passing through the sieve plate type defoaming device, the sieve plate type defoaming device can further intercept and rupture the fine foam; The second mist catcher 9 further intercepts the liquid droplets carried in the gas through the second mist catcher 9, and then flows out from the gas outlet 13 at the top of the second mist catcher 9; the oil-water mixture is in the settlement area, relying on the oil-water density difference to make the oil and water The sieve plate type defoaming device also has the effect of demulsification and coalescence on the oil-water mixture, increasing the oil-water separation effect, so that the upper part of the oil-water mixture is the crude oil and crude oil emulsion layer, and the bottom is the separated water layer, in which the crude oil and The crude oil emulsion layer flows from the dividing plate 18 to the oil chamber 6, and is discharged through the oil outlet 22, and the water enters the water chamber 7 from the aqueduct, and is discharged from the water port.

As an optional embodiment, please continue to refer to Figure 1, the separator also includes:

The buffer baffle 27 is welded on the inner wall of the first side of the tank body 1, and there are a plurality of small holes on the surface of the buffer baffle 27;

The buffer tray 28 is located below the buffer baffle 27 and welded to the lower inner wall of the tank body 1 .

Wherein, the oil-air-water mixture enters the buffer baffle 27 with holes on the surface through the downcomer 15 and the liquid replenishment pipe, and the oil-air-water mixture flows evenly around through the holes on the buffer baffle 27, which can further reduce the oil-air-water mixture. Disturbance of the liquid level after entering the tank body 1; the buffer tray 28 below the buffer baffle 27 also plays a role of buffering, thereby preventing air bubbles from appearing in the oil-air-water mixture as much as possible.

As an optional embodiment, the included angle between the oil-air-water inlet pipe 11 and the center line of the first mist catcher 8 is a preset angle value. The preset angle value is: 70°-80°. Wherein, if the separator is parallel to the horizontal plane, the angle between the oil-gas-water inlet pipe 11 and the horizontal plane is 10°-20°.

As an optional embodiment, please continue to refer to Figure 1, the separator also includes:

The safety valve 24 is welded on the top of the tank body 1 and located between the first mist catcher 8 and the second mist catcher 9 .

As an optional embodiment, please refer to Fig. 3 and Fig. 4, the finned heat exchange defoaming device 14 includes:

Body 14a;

The second through hole 14b is arranged in the body 14a, and the downcomer 15 passes through the body 14a;

The heat exchange pipe 14c is arranged on the body 14a;

The fins 14d are arranged outside the heat exchange pipe 14c.

Among them, the finned heat exchange and defoaming device 14 goes deep below the liquid surface, and heats the oil-gas-water mixture through heat exchange. When the gas is precipitated from the crude oil, the liquid film around the bubbles is heated to accelerate the molecular movement in the film. In this way, the surface tension of the film is cut and the purpose of crude oil defoaming is achieved. The heating temperature is 75-80°C, and the precipitated gas passes through the gravity sedimentation zone.

As an optional embodiment, please refer to Fig. 5 and Fig. 6, each sieve plate type defoaming structure 16 includes:

A protective shell 16a, the protective shell 16a has openings, the protective shell is for example a steel plate,

The screen 16b is arranged inside the protective shell 16a, wherein the screen 16b is, for example, a wire-wound screen and a metal braided net, etc., for example: the screen 16b is woven by stainless steel wire and stacked into a screen with a thickness of 100mm-150mm Mesh 16b, the minimum aperture of the screen 16b is 0.15 microns to 25 microns.

As an optional embodiment, please continue to refer to Figure 1, the separator also includes:

The first manhole 4a is arranged in the tank body 1 and between the two sieve plate type defoaming structures 16; and/or

The second manhole 4b is arranged in the tank body 1 and between the two sieve plate type defoaming structures 16 and the partition plate 18 .

As an optional embodiment, please continue to refer to Figure 1, the separator also includes:

The liquid level regulator 23 is arranged on the second side of the tank body 1 and is used for observing the amount of oil in the oil chamber 6 and the amount of water in the water chamber 7 . And, based on this, continue to control the oil-water interface, and control the opening of the drain valve through the controller to keep the oil-water interface at a specified height.

As an optional embodiment, please continue to refer to Figure 1, the separator also includes:

An oil level gauge 25 is arranged inside the oil chamber 6 for detecting the liquid level of the oil chamber 6; and/or

The water level gauge 26 is arranged inside the water chamber 7 for detecting the liquid level of the water chamber 7 .

As an optional embodiment, please refer to FIG. 7, the liquid distribution pipe 15a includes four, and the angle between every two liquid distribution pipes 15a is 90°. FIG. 7 is a schematic cross-sectional view of the downcomer 15 .

One or more embodiments of the utility model have at least the following beneficial effects:

In the embodiment of the utility model, the oil-gas-water mixture enters the first mist catcher tangentially from the oil-gas-water inlet to form a vortex, wherein the energy of the gas-liquid mixture itself generates rotational motion, and the centrifugal force generated by the vortex accelerates the gas-liquid separation, Shorten the time for the gas to overflow from crude oil; the gas after preliminary separation still contains a large number of small liquid droplets. After passing through the first mist catcher, the small liquid droplets entrained in the gas can be adsorbed and coalesced under the first mist catcher. This reduces the amount of liquid droplet entrainment in the gas. That is to say, two pre-separation processes can be provided for gas-liquid, one on the inclined inlet pipe section and the other on the first mist catcher;

Moreover, through the function of the downcomer and the liquid distribution pipe, the oil-gas-water mixture can be evenly entered into the tank, reducing the disturbance of the oil-gas-water mixture to the liquid level in the tank, which is beneficial to the separation of oil and water;

Then, the oil-gas-water mixture enters the settling area (that is, the space where the five sand collecting buckets are located), and the finned heat exchange and defoaming device goes deep below the liquid surface to heat the oil-gas-water mixture through heat exchange. When the mixture is precipitated, the liquid film around the bubbles is heated to accelerate the molecular movement in the film, thereby reducing the surface tension of the film and achieving the purpose of crude oil defoaming;

Moreover, the precipitated gas passes through the gravity settling area horizontally. When passing through the sieve plate type defoaming device, the sieve plate type defoaming device can further intercept and rupture the fine foam; The second mist catcher further intercepts the liquid droplets carried in the gas through the second mist catcher, and then flows out from the gas outlet at the top of the second mist catcher; the oil-water mixture is in the settlement area, relying on the oil-water density difference to separate the oil-water, sieve plate type The defoaming device also has the function of demulsification and coalescence of the oil-water mixture, increasing the oil-water separation effect, so that the upper part of the oil-water mixture is the crude oil and the crude oil emulsion layer, and the bottom is the separated water layer, among which the crude oil and the crude oil emulsion layer Flow from the partition to the oil chamber and discharge through the oil outlet; water enters the water chamber from the water guide pipe and discharges from the water outlet;

From the above analysis, it can be seen that in the embodiment of the utility model, the oil-gas-water mixture has been defoamed multiple times, which can more effectively promote foam rupture, thereby achieving the technical effect of improving the separation degree of oil-gas separation and crude oil dehydration efficiency.

Moreover, when the oil-air-water mixture enters the tank, it needs to pass through the buffer baffle with holes on the surface. The oil-air-water mixture flows evenly around through the holes on the buffer baffle, which can further reduce the pressure on the liquid surface after the oil-air-water mixture enters the tank. disturbance; the buffer tray under the buffer baffle also acts as a buffer, so as to prevent air bubbles from appearing in the oil-air-water mixture as much as possible.

While preferred embodiments of the present invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be interpreted to cover the preferred embodiment and all changes and modifications which fall within the scope of the present invention.

Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.

Claims (10)

1. a frothy crude oil triphase separator, is characterized in that, comprising:

Tank body;

First bearing, is arranged at described tank base first side;

Second bearing, be arranged at described tank base second side, described first side is relative with described second side;

Five sand collecting hoppers, and described five sand collecting hoppers are welded in described tank body and stretch into described tank interior between described first bearing and described second bearing horizontally;

Dividing plate, is longitudinally arranged at described tank interior, described tank body is divided into the first tank body space and the second tank body space, is separated into grease chamber and hydroecium in described second tank body space;

Oil export pipe, being welded on described tank body and being positioned on the right side of described second bearing, described oil export pipe stretches into described tank interior and is connected with described grease chamber;

Water outlet pipe, being welded on described tank body and being positioned on the right side of described second bearing, described water outlet pipe stretches into described tank interior and is connected with described hydroecium;

Sewage draining exit, is welded on described tank body and between described five sand collecting hoppers and described second bearing, described sewage draining exit is connected with tank interior;

First spray catcher, is arranged at first side at described tank body top and communicates with described tank body;

Second spray catcher, is arranged at second side at described tank body top and communicates with described tank body;

Connecting leg, is connected to described first spray catcher and described second spray catcher;

Oil gas water inlet pipe, is welded in the first side of described first spray catcher;

Downtake, be welded in described tank body upper interior and communicate with described first spray catcher, described downtake comprises: the first body, be arranged at the second body of described first its bottom and be arranged at the 3rd body of described second its bottom, wherein, the diameter of described first body is the first diameter, the diameter of described 3rd body is Second bobbin diameter, and described first diameter is greater than described Second bobbin diameter;

Liquid distributor, is welded in described 3rd body surrounding and communicates with described downtake;

Two sieve-board type froth breaking structures, are welded in described tank body upper inside walls, and between described downtake and described second spray catcher, there is the first through hole on the downside of described two sieve-board type froth breaking structures and described tank body between inwall;

Folded plate type spray catcher, is welded on described tank body upper inside walls, and between described two sieve-board type froth breaking structures;

Fin type heat exchange defoaming device, to be welded on described tank wall and to stretch into described tank interior, and fin type heat exchange defoaming device is positioned at the upside of described tank body horizontal direction axis, described fin type heat exchange defoaming device is through described two sieve-board type froth breaking structures.

2. separator as claimed in claim 1, it is characterized in that, described separator also comprises:

Cushioning fender, is welded on the inwall of described tank body first side;

Buffer pallet, to be positioned at below described cushioning fender and to be welded on the downside of described tank body on inwall.

3. separator as claimed in claim 1, it is characterized in that, described dividing plate is apart from described tank body top predeterminable range.

4. separator as claimed in claim 1, it is characterized in that, the angle between the center line of described oil gas water inlet pipe and described first spray catcher is preset angle angle value.

5. separator as claimed in claim 4, it is characterized in that, described preset angle angle value is: 70 ° ~ 80 °.

6. separator as claimed in claim 1, it is characterized in that, described separator also comprises: safety valve, is welded in described tank body top and between described first spray catcher and described second spray catcher.

7. separator as claimed in claim 1, it is characterized in that, each sieve-board type froth breaking structure comprises:

Protective shell, the perforate of described protective shell band;

Screen cloth, is arranged at described protective shell inner.

8. separator as claimed in claim 1, it is characterized in that, described fin type heat exchange defoaming device comprises:

Body;

Second through hole, is arranged at described body, and described downtake passes in described body;

Heat exchange pipeline, is arranged at described body;

Fin, is arranged at outside described heat exchange pipeline.

9. separator as claimed in claim 1, it is characterized in that, described separator also comprises:

First manhole, is arranged at described tank body and between described two sieve-board type froth breaking structures; And/or

Second manhole, is arranged at described tank body and between described two sieve-board type froth breaking structures and described dividing plate.

10. separator as claimed in claim 1, it is characterized in that, described separator, also comprises:

Liquor-level regulator, is arranged at the second side of described tank body.