CN218553201U

CN218553201U - Three-phase separator

Info

Publication number: CN218553201U
Application number: CN202223188435.2U
Authority: CN
Inventors: 马清刚; 李安洪
Original assignee: Weifang Hongwei Chemical Equipment Co ltd
Current assignee: Weifang Hongwei Chemical Equipment Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-03-03
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a three-phase separator, which comprises an outer shell, the casing is both ends confined cylindricly, and the front end of casing is equipped with the intake pipe, and the gas outlet slope of intake pipe is provided with the settlement separation board, and the intermediate position of casing is equipped with first grid and second grid, first grid and second grid all have a plurality of baffles to constitute, the baffle is the interval and sets up side by side about, and first grid is located the top of second grid, and the baffle of first grid and second grid all inclines to set up, and the rear end of first grid and second grid is equipped with the baffle. The utility model can achieve better separation effect of oil-water separation and obviously improve the efficiency; the structure is simple.

Description

Three-phase separator

Technical Field

The utility model relates to a three-phase separator belongs to gas, liquid, solid three-phase separation technical field.

Background

Crude oil extracted from downhole is a mixture of gas, oil, water and sand, etc., which needs to be separated. In the process of oil exploitation, crude oil is conveyed to a gathering and transportation station or an offshore oil production platform through a pipeline, and the treatment of the crude oil is an important process link. Firstly, three-phase separation of oil, gas and water is carried out. Collecting and utilizing the separated associated gas; the separated crude oil containing water is further separated by a free water buffer tank, an electric dehydrator or a thermochemical settling tank to obtain qualified commodity oil for storage or export; and the separated sewage enters a sewage treatment system for treatment and is discharged after meeting the discharge standard.

The main working principle of the traditional three-phase separator is as follows: the oil, water and gas three-phase mixed liquid enters a gas-liquid cyclone separator of the separator from the tangential direction and then carries out rotary swirling motion, the centrifugal force generated is different due to the different mass of the gas and the liquid drops, and the liquid drops with heavier mass and a small amount of sand grains are thrown to the outer ring to be gathered along the wall of the container and move to an oil-water separation zone under the drive of gravity. The lighter gas forms a cyclone in the inner ring to separate liquid from gas. The oil-water mixture enters an oil-water liquid phase separation area of the separator, the oil-water separation is assisted by means of density difference and a metal corrugated sieve plate, after the mixture stays for enough time, an obvious oil-water interface is formed, an oil layer with low density flows into an oil outlet from the top of a weir plate, and a continuous water layer flows out from a lower water outlet, so that the three-phase separation of oil, gas and water is realized.

In the separation process, after gas-liquid separation, an oil-water mixture enters an oil-water liquid phase separation zone of the separator, and because oil and water are mixed together and are adhered together, when the oil-water separation is carried out through a metal corrugated sieve plate, the oil-water mixture is seriously carried with each other and is not completely separated, so that the problems can be brought to the subsequent process; and the oil-water separation can be carried out only when the oil-water interface is formed after enough time is needed during the separation, so that the efficiency is not high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a three-phase separator aiming at the defects in the background technology, which can achieve better separation effect of oil-water separation and obviously improve the efficiency; the structure is simple.

For solving the technical problem, the utility model discloses a following technical scheme:

the utility model provides a three-phase separator, includes the casing, the casing is both ends confined cylindricly, and the front end of casing is equipped with the intake pipe, and the gas outlet slope of intake pipe is provided with subsides the separation board, and the intermediate position of casing is equipped with first grid and second grid, first grid and second grid all have a plurality of baffles to constitute, the baffle is the interval from top to bottom and sets up side by side, and first grid is located the top of second grid, and the baffle of first grid and second grid all inclines to set up, and the rear end of first grid and second grid is equipped with the baffle.

Furthermore, the lower end of the sedimentation separation plate inclines towards the air inlet pipe side, a baffle is horizontally arranged at the upper end of the sedimentation separation plate, and the baffle is positioned on one side of the sedimentation separation plate close to the air inlet pipe.

Further, the end face of the air outlet of the air inlet pipe is arranged in a downward inclined mode.

Further, the baffles of the first and second grids are inclined in opposite directions.

Further, the included angle of the baffles of the first grating and the second grating is 90 degrees.

Further, the first grid and the second grid are respectively coated with a hydrophilic oil-draining base paint and a hydrophilic oil-draining base paint.

Furthermore, the partition board is connected with the lower half part of the inner wall of the shell, and a gap is formed between the partition board and the upper half part of the shell.

Furthermore, a natural gas outlet is formed in the top wall of the shell, a water storage bag and an oil drain port are formed in the bottom wall of the shell, a water outlet is formed in the lower end of the water storage bag, and the water storage bag and the oil drain port are located on the front side and the rear side of the partition plate respectively.

Furthermore, the side wall of the shell at the front end of the partition board is respectively provided with two third water level sensor interfaces and two fourth water level sensor interfaces, and the side wall of the shell at the rear end of the partition board is respectively provided with two first water level sensor interfaces and two second water level sensor interfaces.

Further, the top of casing is equipped with the manhole, and the bottom of casing is equipped with the landing leg, and the top of casing is equipped with drain and manometer mouth.

The utility model adopts the above technical scheme after, compare with prior art, have following advantage:

1. the separation principle of the grating is that the density difference of oil and water is utilized, gaseous oil drops float upwards, gaseous moisture floats downwards, the inclined direction of the partition plate in the first grating oil channel is upward, so that the water drops cannot pass through, the discharged oil basically contains no water, and the inclined direction of the partition plate in the second grating water channel is downward, so that the oil drops cannot pass through, and the discharged water basically contains no oil. The oil-water separation process is to complete separation when oil-water is converted from gas to liquid, rather than separating after oil-water liquefaction, so that the problem of mutual carrying during separation is reduced, the separation effect is better, and the structure is simple.

2. After the air flow of the oil-water mixture passes through the first grating and the second grating, water and oil respectively fall on the front end and the rear end of the partition plate, standing is not needed, and the separation efficiency is improved.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a sectional view of the present invention.

In the figure, 1-shell, 2-air inlet pipe, 3-manhole, 4-natural gas outlet, 5-vent, 6-pressure gauge port, 7-settling separation plate, 8-first grid, 9-second grid, 10-partition plate, 11-water storage bag, 12-water outlet, 13-oil outlet, 14-supporting leg, 15-first water level sensor interface, 16-second water level sensor interface, 17-third water level sensor interface and 18-fourth water level sensor interface.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a three-phase separator, which comprises a housin, the casing is both ends confined cylindricly, and the front end of casing is equipped with the intake pipe, and the air current that contains the three-phase mixture gets into this device from the intake pipe inside, and the terminal surface of the gas outlet of intake pipe is the downward sloping setting for the air current slant blowout of flowing from the gas outlet of intake pipe, the gas outlet slope of intake pipe is provided with the settlement separation board, and the lower extreme of settlement separation board inclines to the intake pipe side, and the upper end level of settlement separation board is equipped with the baffle, the baffle is located one side that the settlement separation board is close to the intake pipe.

The air flow containing the three-phase mixture enters the device from the air inlet pipe, solid impurities in the air flow collide with the sedimentation separation plate and then fall to the bottom of the shell, the baffle at the upper end of the sedimentation separation plate stops the upward flowing air flow, so that the solid impurities in the upward flowing air flow fall, and the gas, oil, water and other liquids in the air flow cross the sedimentation separation plate and continue to flow forward.

The intermediate position of casing is equipped with first grid and second grid, first grid and second grid all have a plurality of baffles to constitute, the baffle is the interval from top to bottom and sets up side by side, and first grid is located the top of second grid, and the baffle of first grid and second grid all inclines to set up, and the opposite direction of slope of the two, and the contained angle of the baffle of first grid and second grid is, and the air current blows to the baffle on the first grid and upwards deflects, and the air current blows to the baffle on the second grid and deflects downwards behind.

The separation principle of the grating is that the density difference of oil and water is utilized, gaseous oil drops float upwards, gaseous moisture floats downwards, the inclination direction of the partition plate in the first grating oil channel is upward, so that the water drops cannot pass through, the discharged oil basically contains no water, and the inclination direction of the partition plate in the second grating water channel is downward, so that the oil drops cannot pass through, and the discharged water basically contains no oil. The oil-water separation process is that the separation is completed when the oil-water is converted from the gas state to the liquid state, rather than being carried out after the oil-water is liquefied, so that the problem of mutual carrying during the separation is reduced, the separation effect is better, and the structure is simple.

The first grating and the second grating are respectively coated with the hydrophilic oil-leaching base and the hydrophilic oil-leaching base coating, so that oil and water can be better separated.

The top wall of the shell is provided with a natural gas outlet, and the density of natural gas is low, so that the natural gas can flow out from the natural gas outlet to be separated.

A partition plate is arranged at the rear ends of the first grid and the second grid, the partition plate is connected with the lower half part of the inner wall of the shell, and a gap is formed between the partition plate and the upper half part of the shell, so that water flowing out of the second grid touches the partition plate and is blocked at the front end of the partition plate, and the water falls to the front end of the partition plate after being liquefied; gaseous oil drops from first grid outflow cross the rear that the baffle flowed to the baffle, falls the rear end of baffle after the liquefaction, and finally, after first grid and second grid are passed in the air current of oil water mixture, water and oil branch maybe fall in the front end and the rear end of baffle, need not to stand, has improved separation efficiency.

Be provided with on the diapire of casing and deposit water drum and oil drain port, the lower extreme of depositing the water drum is equipped with the outlet, and deposit water drum and oil drain port and be located the front side and the rear side of baffle respectively, and the water that falls to the baffle front end is shunted and is deposited in the water drum, and some are blockked by the settlement separation board and the solid impurity that falls also shunts along with water and deposit the water drum, discharge from the outlet, and oil is discharged from the oil drain port.

The lateral wall of the casing of the front end of baffle is equipped with two third water level sensor interfaces and two fourth water level sensor interfaces respectively, and position range is in the lateral wall of casing about two third water level sensor interfaces are for connecting two proximity level sensor, and position range is in the lateral wall of casing about two fourth water level sensor interfaces are for connecting two long-range water level sensor, can make things convenient for staff remote monitoring water level.

The lateral wall of the casing of the rear end of baffle is equipped with two first water level sensor interfaces and two second water level sensor interfaces respectively, and position range is in the lateral wall of casing about two first water level sensor interfaces are for connecting two proximity level sensor, and two second water level sensor interfaces are upper and lower position range in the lateral wall of casing for connect two long-range water level sensor, can make things convenient for staff remote monitoring oil level.

The top of casing is equipped with the manhole, conveniently overhauls and maintains, and the bottom of casing is equipped with the landing leg for support housing.

The top of casing is equipped with drain and manometer mouth, and the drain is closed during normal work, opens when this separator stop work, discharges the residual air current in the casing, and the manometer mouth is used for installing the manometer and the inside atmospheric pressure of real-time supervision casing.

The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.

Claims

1. The utility model provides a three-phase separator, includes casing (1), casing (1) is both ends confined cylindricly, and the front end of casing (1) is equipped with intake pipe (2), its characterized in that:

a settling separation plate (7) is obliquely arranged at the air outlet of the air inlet pipe (2);

a first grating (8) and a second grating (9) are arranged in the middle of the shell (1), the first grating (8) and the second grating (9) are formed by a plurality of baffles, the baffles are arranged side by side at intervals from top to bottom, the first grating (8) is positioned above the second grating (9), and the baffles of the first grating (8) and the second grating (9) are obliquely arranged;

the rear ends of the first grid (8) and the second grid (9) are provided with a clapboard (10).

2. A three-phase separator as claimed in claim 1, wherein: the lower end of the sedimentation separation plate (7) inclines towards the air inlet pipe (2), the upper end of the sedimentation separation plate (7) is horizontally provided with a baffle, and the baffle is positioned on one side, close to the air inlet pipe (2), of the sedimentation separation plate (7).

3. A three-phase separator as claimed in claim 1, wherein: the end face of the air outlet of the air inlet pipe (2) is arranged in a downward inclined mode.

4. A three-phase separator as claimed in claim 1, wherein: the baffles of the first grid (8) and the second grid (9) are inclined in opposite directions.

5. A three-phase separator as claimed in claim 4, wherein: the included angle of the baffles of the first grating (8) and the second grating (9) is 90 degrees.

6. A three-phase separator as claimed in claim 1, wherein: the first grating (8) and the second grating (9) are respectively coated with a hydrophilic oil-draining base paint and a hydrophilic oil-draining base paint.

7. A three-phase separator as claimed in claim 1, wherein: the partition board (10) is connected with the lower half part of the inner wall of the shell (1), and a gap is formed between the partition board (10) and the upper half part of the shell (1).

8. A three-phase separator as claimed in claim 1, wherein: be equipped with natural gas export (4) on the roof of casing (1), be provided with on the diapire of casing (1) and deposit water package (11) and oil drain port (13), the lower extreme of depositing water package (11) is equipped with outlet (12), deposits water package (11) and oil drain port (13) and is located the front side and the rear side of baffle (10) respectively.

9. A three-phase separator as claimed in claim 1, wherein: the side wall of the shell (1) at the front end of the partition plate (10) is respectively provided with two third water level sensor interfaces (17) and two fourth water level sensor interfaces (18);

the side wall of the shell (1) at the rear end of the partition plate (10) is respectively provided with two first water level sensor interfaces (15) and two second water level sensor interfaces (16).

10. A three-phase separator as claimed in claim 1, wherein: the top of the shell (1) is provided with a manhole (3), and the bottom of the shell (1) is provided with a supporting leg (14);

the top of the shell (1) is provided with a vent (5) and a pressure gauge port (6).