CN113104967B

CN113104967B - Three-phase separator

Info

Publication number: CN113104967B
Application number: CN202110281711.0A
Authority: CN
Inventors: 高严; 赵金; 赵永志; 聂宜文
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2023-01-13
Anticipated expiration: 2041-03-16
Also published as: CN113104967A

Abstract

The invention discloses a three-phase separator, which comprises a cylinder, a flow guide part, a primary separation part and a blocking part, wherein the flow guide part, the primary separation part and the blocking part are arranged in the cylinder, an air outlet is formed in the top wall of the cylinder, a water outlet is formed in the upper part of the side wall of the cylinder, a three-phase mixed liquid inlet is formed in the lower part of the cylinder, a degassing cavity communicated with the air outlet is formed in the flow guide part, at least part of a settling cavity is formed between the flow guide part and the inner wall surface of the cylinder, the water outlet is communicated with the settling cavity, a primary separation cavity communicated with the three-phase mixed liquid inlet and the degassing cavity is formed in the primary separation part, the upper end of the primary separation part extends into the degassing cavity, the lower end of the primary separation part extends out of the degassing cavity, a mud-water backflow channel communicated with the settling cavity and the degassing cavity is formed between the lower end surface of the primary separation part and the inner wall surface of the cylinder, and a sludge backflow channel is formed between the lower end surface of the primary separation part and the blocking part. The three-phase separator has good separation effect and simple structure.

Description

Three-phase separator

Technical Field

The invention relates to the technical field of water treatment, in particular to a three-phase separator.

Background

An anaerobic reactor is an important technical device for sewage treatment, most organic pollutants are removed by the degradation of microorganisms in the anaerobic reactor, and methane is generated at the same time. The three-phase separator is an important component of the anaerobic reactor, plays a role in separating anaerobic sludge, water and methane, and influences effluent quality and reactor operation efficiency.

In the related art, the three-phase separator mainly includes a conventional three-phase separator and an improved three-phase separator. The traditional three-phase separator has the problems of poor separation effect, easy occurrence of sludge carrying, exhaust water carrying and the like, reduction of effective treatment load of the anaerobic reactor, reduction of effluent quality and serious influence on the running condition of a subsequent process; the improved three-phase separator has a complex structure and high application cost, and is difficult to apply in practical engineering.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the invention provides a three-phase separator which is simple in structure and good in separation effect.

A three-phase separator according to an embodiment of the invention comprises: the device comprises a barrel, a water inlet, a three-phase mixed liquid inlet, a water outlet and a three-phase mixed liquid outlet, wherein the top wall of the barrel is provided with an air outlet;

the flow guide part is arranged at the upper part in the cylinder body, a degassing cavity is formed in the flow guide part, the degassing cavity is communicated with the air outlet, and at least part of the flow guide part is spaced from the inner wall surface of the cylinder body;

the primary separation part is arranged in the cylinder, a primary separation cavity communicated with the three-phase mixed liquid inlet and the degassing cavity is formed in the primary separation part, the upper end of the primary separation part extends into the degassing cavity, the lower end of the primary separation part extends out of the degassing cavity, at least partial settling cavities are formed between the lower end of the primary separation part and the inner wall surface of the cylinder and between the flow guide part and the inner wall surface of the cylinder, the water outlet is communicated with the settling cavity, and a muddy water return channel communicated with the settling cavity and the degassing cavity is formed between the primary separation part and the lower end surface of the flow guide part;

and the blocking component is arranged on the inner wall surface of the cylinder, and a sludge backflow channel is formed between the lower end surface of the primary separation component and the blocking component.

According to the three-phase separator provided by the embodiment of the invention, the primary separation part is arranged in the cylinder body, so that the three-phase mixed liquid entering the three-phase separator can be primarily separated, the gas and the muddy water mixed liquid can be primarily separated, the rising speed of muddy water can be reduced by arranging the flow guide part in the cylinder body, the separation of the gas and the muddy water mixed liquid is further completed, and the water inlet path and the sludge return path of the three-phase mixed liquid are separated through the primary separation part and the flow guide part, so that the muddy water separation effect is enhanced, the separation effect of the three-phase separator is improved, and the structure is simple.

In some embodiments, the top wall of the barrel is conical and forms a gas-collecting channel, and the gas outlet is formed in the center of the gas-collecting channel.

In some embodiments, the flow guide component is an inverted truncated cone, and the upper end of the flow guide component is connected with the periphery of the top wall of the cylinder body.

In some embodiments, the three-phase separator further comprises a gas collecting channel, the upper end of the gas collecting channel is connected with the top wall of the barrel, a gas collecting cavity communicated with the gas outlet and the degassing cavity is formed in the gas collecting channel, and the gas collecting channel is spaced from the inner wall surface of the barrel.

In some embodiments, the gas collection hoods are frustoconical cylinders.

In some embodiments, the flow guide part is an inverted truncated cone, and the upper end of the flow guide part is connected with the lower end of the gas collecting hood.

In some embodiments, the flow directing feature is integrally formed with the gas collection shroud.

In some embodiments, the primary separation member is a frusto-conical cartridge.

In some embodiments, the blocking member is annular, and a surface of the blocking member is inclined radially downward from outside to inside.

In some embodiments, the blocking member is annular and has a triangular axial cross-section.

Drawings

Fig. 1 is a schematic structural view of a three-phase separator according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a three-phase separator according to another embodiment of the present invention.

Reference numerals:

the device comprises a barrel body 1, an air outlet 11, a water outlet 12, a three-phase mixed liquid inlet 13, a sedimentation cavity 14, a mud-water return channel 15, a sludge return channel 16, a flow guide part 2, a degassing cavity 21, a primary separation part 3, a primary separation cavity 31, a blocking part 4, a first part 41, a second part 42, a gas collecting hood 5 and a gas collecting cavity 51.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention. In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

As shown in fig. 1 and 2, a three-phase separator according to an embodiment of the present invention includes a drum 1, a flow guide part 2, a primary separating part 3, and a blocking part 4.

The roof of barrel 1 is equipped with gas outlet 11, and the upper portion of the lateral wall of barrel 1 is equipped with delivery port 12, and the lower part of barrel 1 is equipped with mixed liquid of three-phase import 13.

As shown in fig. 1 and 2, the cartridge 1 includes a top wall at a top and a side wall around the periphery, the top wall being connected to an upper periphery of the side wall. The top wall of the cylinder 1 is provided with an air outlet 11 penetrating through the top wall, so that the air inside the cylinder 1 can be discharged through the air outlet 11. The side wall of the cylinder 1 is provided with a water outlet 12 penetrating through the side wall, so that water inside the cylinder 1 can be discharged through the water outlet 12. The lower part of the cylinder body 1 is provided with a three-phase mixed liquid inlet 13 through which three-phase mixed liquid can enter the cylinder body 1. Specifically, the cylinder 1 is substantially cylindrical.

The flow guide part 2 is arranged at the upper part in the cylinder 1, a degassing cavity 21 is formed in the flow guide part 2, the degassing cavity 21 is communicated with the air outlet 11, and at least part of the flow guide part 2 is spaced from the inner wall surface of the cylinder 1.

As shown in fig. 1 and 2, the upper portion of the flow guide member 2 disposed in the cylinder 1 is provided with the flow guide member 2, and at least a part of the flow guide member 2 is spaced from the inner wall surface of the cylinder 1. The flow guide 2 has therein a degassing chamber 21 communicating with the gas outlet 11. After entering the barrel 1 from the three-phase mixed liquid inlet 13 at the lower part in the barrel 1, the three-phase mixed liquid passes through the degassing cavity 21, and the gas rises and is discharged through the gas outlet 11.

Specifically, as shown in fig. 1 and 2, the flow guide member 2 is open at both the top and the bottom so that the degassing chamber 21 penetrates the flow guide member 2 in the up-down direction, and the top of the degassing chamber 21 communicates with the air outlet 11. It is to be understood that the present application is not limited thereto.

The primary separation part 3 is arranged in the cylinder body 1, a primary separation cavity 31 communicated with the three-phase mixed liquid inlet 13 and the degassing cavity 21 is arranged in the primary separation part 3, the upper end of the primary separation part 3 extends into the degassing cavity 21, the lower end of the primary separation part 3 extends out of the degassing cavity 21, at least part of a sedimentation cavity 14 is formed between the lower end of the primary separation part 3 and the inner wall surface of the cylinder body 1 and between the flow guide part 2 and the inner wall surface of the cylinder body 1, the water outlet 12 is communicated with the sedimentation cavity 14, and a muddy water return channel 15 communicated with the sedimentation cavity 14 and the degassing cavity 21 is formed between the primary separation part 3 and the lower end surface of the flow guide part 2.

As shown in fig. 1 and 2, a primary separation section 3 is further provided in the cylinder 1, and a primary separation chamber 31 is provided in the primary separation section 3, the primary separation chamber 31 communicating with the degassing chamber 21 and the three-phase mixed liquid inlet 13. The primary separation section 3 extends from below upwards and the upper end of the primary separation section 3 extends from the bottom of the degassing chamber 21 into the degassing chamber 21, the lower end of the primary separation section 3 being located outside the degassing chamber 21. The primary separating member 3 is spaced apart from the lower end surface of the flow guide member 2 in the radial direction to form a muddy water return passage 15 therebetween. The lower end of the primary separation part 3 is spaced from the inner wall surface of the cylinder 1, and the flow guide part 2 is at least partially spaced from the inner wall surface of the cylinder 1, so that a settling chamber 14 is formed among the primary separation part 3, the flow guide part 2 and the inner wall surface of the cylinder 1, and the muddy water return passage 15 communicates with the degassing chamber 21 and the settling chamber 14.

The three-phase mixed liquid entering the cylinder 1 from the three-phase mixed liquid inlet 13 at the lower part in the cylinder 1 passes through the degassing cavity 21, the gas rises and is discharged through the gas outlet 11, the muddy water enters the sedimentation cavity 14 through the muddy water backflow channel 15, and the water and sludge separation is realized in the sedimentation cavity 14.

Specifically, as shown in fig. 1 and 2, the top and bottom of the primary separation section 3 are both provided open so that the primary separation chamber 31 penetrates the primary separation section 3 in the up-down direction, the top of the primary separation chamber 31 communicates with the degassing chamber 21, and the bottom of the primary separation chamber 31 communicates with the three-phase mixed liquid inlet 13. It is to be understood that the present application is not limited thereto.

The baffle member 4 is provided on the inner wall surface of the cylindrical body 1, and a sludge return passage 16 is formed between the lower end surface of the primary separating member 3 and the baffle member 4. The three-phase mixed liquid entering the cylinder 1 from the three-phase mixed liquid inlet 13 at the lower part of the cylinder 1 is blocked by the blocking component 4, then enters the primary separation cavity 31 of the primary separation component 3 for primary separation of gas and muddy water, and the sludge settles in the sedimentation cavity 14 and flows back to the lower part of the cylinder 1 from the sludge return channel 16.

As shown in fig. 1 and 2, the inner wall surface of the cylinder 1 is provided with a blocking member 4, the blocking member 4 is located below the primary separation member 3 in the up-down direction, the lower end surface of the primary separation member 3 is spaced apart from the blocking member 4, a sludge return passage 16 is formed therebetween, and the sludge return passage 16 communicates the lower portion in the cylinder 1 with the settling chamber 14.

The three-phase mixed liquid enters the barrel body 1 from a three-phase mixed liquid inlet 13 at the lower part of the barrel body 1, after being blocked by the blocking part 4, the three-phase mixed liquid enters the primary separation cavity 31 of the primary separation part 3, gas and muddy water are primarily separated in the primary separation cavity 31 due to different ascending speeds of the gas and the muddy water, the gas and the muddy water flow out of the top of the primary separation cavity 31 into the degassing cavity 21, the gas and the muddy water are further separated in the degassing cavity 21 due to different ascending speeds of the gas and the muddy water, the gas is discharged through a gas outlet 11 at the top, the muddy water flows back downwards into the sedimentation cavity 14 through a muddy water backflow channel 15 between the primary separation part 3 and the flow guiding part 2, the muddy water is separated in the sedimentation cavity 14, namely, sludge is precipitated, water can be discharged through a water outlet 12 on the side wall of the barrel body 1, and the sludge flows back to the lower part in the barrel body 1 through a sludge backflow channel 16 between the primary separation part 3 and the blocking part 4. Thereby, the water inlet path of the three-phase separator is from bottom to top through the primary separation chamber 31 into the degassing chamber 21, the sludge-water return path is from the degassing chamber 21 down through the sludge-water return channel 15 into the settling chamber 14, and the sludge return path is from the settling chamber 14 down through the sludge return path 16 into the lower part inside the cylinder 1, i.e. the water inlet path of the three-phase separator is separated from the sludge-water return path and the sludge return path.

According to the three-phase separator provided by the embodiment of the invention, the primary separation part 3 is arranged in the cylinder 1, so that the three-phase mixed liquid entering the three-phase separator can be primarily separated, gas and muddy water mixed liquid can be primarily separated, the rising speed of muddy water can be reduced by arranging the flow guide part 2 in the cylinder 1, the separation of the gas and the muddy water mixed liquid is further completed, the water inlet path of the three-phase mixed liquid and the muddy water backflow path and the sludge backflow path are separated through the primary separation part 3 and the flow guide part 2, the muddy water separation effect is enhanced, the separation effect of the three-phase separator is improved, and the structure is simple.

In some embodiments, the top wall of the barrel 1 is conical and forms a gas collection enclosure, and the gas outlet 11 is formed in the center of the gas collection enclosure. As shown in fig. 1, the top wall of the cylinder 1 is a sharp-edged and rounded-down body to collect the gas flowing out of the degassing chamber 21, thereby forming a gas-collecting channel. The air outlet 11 is arranged at the top of the air collecting channel, namely the top of the top wall of the cylinder body 1. The gas flowing out of the top of the degassing chamber 21 enters the inner space of the gas-collecting hood and is discharged through the gas outlet 11 at the top of the gas-collecting hood.

In some specific embodiments, the flow guide part 2 is an inverted truncated cone, and the upper end of the flow guide part 2 is connected with the periphery of the top wall of the barrel 1. As shown in fig. 1, the flow guide member 2 is substantially cylindrical, and the cross-sectional area of the degassing chamber 21 of the flow guide member 2 gradually decreases from top to bottom, and the upper periphery of the flow guide member 2 is connected to the lower periphery of the top wall of the cylinder 1 and the upper periphery of the side wall of the cylinder 1.

It will be appreciated that the form of the gas collecting channel is not limited to that shown in fig. 1, for example, in some embodiments, as shown in fig. 2, the three-phase separator further includes a gas collecting channel 5, the upper end of the gas collecting channel 5 is connected to the top wall of the barrel 1, the gas collecting channel 5 has a gas collecting chamber 51 therein, which is communicated with the gas outlet 11 and the degassing chamber 21, and the gas collecting channel 5 is spaced apart from the inner wall surface of the barrel 1.

As shown in fig. 2, a gas-collecting hood 5 is further disposed in the barrel 1, an upper end of the gas-collecting hood 5 is connected to an inner surface of a top wall of the barrel 1, an outer circumferential surface of the gas-collecting hood 5 is spaced apart from an inner wall surface of the barrel 1, and the gas-collecting hood 5 is located above the flow guide member 2. Sedimentation chambers 14 are formed between the outer peripheral surface of the gas collecting hood 5 and the inner wall surface of the cylinder 1, between the flow guide member 2 and the inner wall surface of the cylinder 1, and between the lower end of the primary separating member 3 and the inner wall surface of the cylinder 1. The gas collecting hood 5 has a gas collecting cavity 51 therein, and the gas collecting cavity 51 communicates the gas outlet 11 with the degassing cavity 21.

Specifically, the top and the bottom of the gas collecting channel 5 are both open, so that the gas collecting chamber 51 penetrates through the gas collecting channel 5 in the up-down direction, the top of the gas collecting chamber 51 is communicated with the gas outlet 11, and the bottom of the gas collecting chamber 51 is communicated with the top of the degassing chamber 21.

In some specific embodiments, the gas collection enclosure 5 is a truncated cone shaped cylinder. As shown in fig. 2, the cross-sectional area of the gas collection chamber 51 of the gas collection hood 5 increases from top to bottom to facilitate collection of the gas flowing out of the degassing chamber 21.

In some specific embodiments, the flow guide part 2 is an inverted truncated cone, and the upper end of the flow guide part 2 is connected with the lower end of the gas collecting hood 5. As shown in fig. 2, the flow guiding part 2 is substantially cylindrical, and the cross-sectional area of the degassing chamber 21 of the flow guiding part 2 decreases from top to bottom, and the upper end of the flow guiding part 2 is connected with the lower end of the gas collecting channel 5.

In some specific embodiments, the flow guide member 2 is formed integrally with the gas collecting channel 5. In other words, the flow guiding member 2 and the air collecting cover 5 are one integrally formed member including the flow guiding portion and the air collecting portion. It is understood that the present application is not limited thereto, for example, the flow guiding part 2 and the gas collecting channel 5 are formed separately and then connected to each other.

In some embodiments, primary separation member 3 is a frusto-conical cartridge. As shown in fig. 1 and 2, the primary separation part 3 is generally cylindrical, and the cross-sectional area of the primary separation chamber 31 of the primary separation part 3 is gradually increased from top to bottom, thereby facilitating the primary separation of gas and muddy water in the three-phase mixed liquid.

In some embodiments, the barrier member 4 is annular. Specifically, as shown in fig. 1 and 2, the blocking member 4 is arranged around the inner wall surface of the cylinder 1, and the blocking member 4 has a through cavity therein to communicate the lower portion in the cylinder 1 with the primary separation chamber 31. From this, through setting up blocking part 4 and circularizing, can block effectively the three-phase mixed liquid that gets into from the lower part in the barrel 1, guarantee that the three-phase mixed liquid gets into primary separation chamber 31 smoothly in, further improved the separation effect.

In some specific embodiments, the surface of the blocking member 4 is inclined radially downward from the outside to the inside. Specifically, the outer circumferential surface of the blocking member 4 is connected to the inner wall surface of the cylinder 1, the inner circumferential surface of the blocking member 4 surrounds a through cavity, and the inner circumferential surface of the blocking member 4 is inclined inward in the direction from top to bottom so that the cross-sectional area of the through cavity is gradually reduced.

In other particular embodiments, the blocking member 4 has a triangular axial section. In other words, in an axial section of the blocking member 4, i.e. in the section shown in the figures, the blocking member 4 is triangular.

Specifically, the stopper member 4 includes a first portion 41 and a second portion 42 connected in this order from top to bottom, an outer peripheral surface of the first portion 41 and an outer peripheral surface of the second portion 42 are both connected to the inner wall surface of the cylinder 1, an inner peripheral surface of the first portion 41 is inclined inward in the top-to-bottom direction, an inner peripheral surface of the second portion 42 is inclined inward in the bottom-to-top direction, and an inner end of the inner peripheral surface of the first portion 41 is connected to an inner end of the inner peripheral surface of the second portion 42. Thereby, the cross-sectional area of the through cavity of the dam member 4 is gradually reduced and then gradually increased from top to bottom, and the connection between the inner peripheral surface of the first portion 41 and the inner peripheral surface of the second portion 42 is the most protruded position of the inner peripheral surface of the dam member 4.

It is understood that the structural form of the blocking member 4 is not limited thereto.

In some embodiments, the cross-sectional area of the outer circumferential profile of the lower end face of the primary separating member 3 is larger than the cross-sectional area of the inner circumferential profile of the lower end face of the flow guide member 2. As shown in fig. 1 and 2, the lower end of the primary separation section 3 protrudes out of the degassing chamber 21, and the outer periphery of the lower end face of the primary separation section 3 is located radially outside the outer periphery of the lower end face of the flow guide 2. Therefore, the muddy water can be guided to flow back, the efficiency of the muddy water flowing back to the sedimentation cavity 14 is improved, and the separation effect of the three-phase separator is further improved.

In some embodiments, the cross-sectional area of the outer circumferential profile of the lower end face of the primary separating member 3 is larger than the cross-sectional area at the connection of the inner circumferential surface of the first portion 41 and the inner circumferential surface of the second portion 42 of the barrier member 4. As shown in fig. 1 and 2, the outer peripheral edge of the lower end face of the primary separating member 3 is located radially outward of the most protruded position of the inner peripheral surface of the stopper member 4. Therefore, the sludge can be guided to flow back, the efficiency of the sludge flowing back to the lower part in the cylinder body 1 is improved, and the separation effect of the three-phase separator is further improved.

In some embodiments, the dimension in the up-down direction of a portion of the primary separation section 3 inside the degassing chamber 21 is substantially equal to the dimension in the up-down direction of another portion of the primary separation section 3 outside the degassing chamber 21. In other words, the height of the portion of the primary separating section 3 that protrudes into the degassing chamber 21 is substantially the same as the height of the portion that protrudes into the degassing chamber 21. Therefore, the effect of primarily separating gas and muddy water in the three-phase mixed liquid is improved.

A three-phase separator according to an embodiment of the invention is described below with reference to fig. 1.

As shown in fig. 1, a three-phase separator according to an embodiment of the present invention includes a drum 1, a flow guide part 2, a primary separating part 3, and a blocking part 4.

The cylinder 1 is in a general cylinder shape, the top wall of the cylinder is in a cone shape and forms a gas collecting hood, and the top of the top wall of the cylinder 1 is provided with a gas outlet 11 penetrating through the top wall of the cylinder 1. The upper part of the side wall of the cylinder body 1 is provided with a water outlet 12, and the lower part of the cylinder body 1 is provided with a three-phase mixed liquid inlet 13.

The flow guide component 2 is arranged in the cylinder body 1, and the upper end of the flow guide component 2 is connected with the periphery of the top wall of the cylinder body 1. The rest part of the flow guide component 2 except the upper end which is contacted with the periphery of the top wall is spaced from the inner wall surface of the cylinder 1.

The flow guide part 2 is a reverse truncated cone, a degassing cavity 21 penetrating the flow guide part 2 in the up-and-down direction is arranged in the flow guide part 2, and the degassing cavity 21 is communicated with the gas outlet 11 through the inner space of the gas collecting hood.

The primary separation section 3 is arranged in the cylinder 1, and the primary separation section 3 extends from below upwards, and the upper end of the primary separation section 3 extends from the bottom of the degassing chamber 21 into the degassing chamber 21, and the lower end of the primary separation section 3 is located outside the degassing chamber 21. The lower end of the primary separating component 3 is spaced from the inner wall surface of the cylinder 1, and a settling chamber 14 is formed among the flow guide component 2, the lower end of the primary separating component 3 and the inner wall surface of the cylinder 1. The primary separating part 3 is spaced apart from the lower end surface of the flow guide part 2 in the radial direction to form a muddy water return passage 15 therebetween, and the muddy water return passage 15 communicates the degassing chamber 21 and the settling chamber 14.

Primary separation section 3 is a truncated cone-shaped cartridge, and primary separation section 3 has therein primary separation chamber 31 penetrating primary separation section 3, primary separation chamber 31 communicating the lower portion inside cartridge body 1 with degassing chamber 21.

The baffle member 4 is disposed around the inner wall surface of the cylindrical body 1 and is located below the primary separating member 3 in the vertical direction. The blocking part 4 is spaced apart from the lower end surface of the primary separating part 3 and forms a sludge return passage 16 therebetween.

The three-phase mixed liquid enters the cylinder body 1 from a three-phase mixed liquid inlet 13 at the lower part of the cylinder body 1, after being blocked by the blocking part 4, the three-phase mixed liquid enters the primary separation cavity 31 of the primary separation part 3, gas and muddy water are primarily separated in the primary separation cavity 31 due to different ascending speeds of the gas and the muddy water, the gas and the muddy water flow out of the top of the primary separation cavity 31 and enter the degassing cavity 21, the gas and the muddy water are further separated in the degassing cavity 21 due to different ascending speeds of the gas and the muddy water, the gas passes through the inner space of the gas collecting hood at the top wall of the cylinder body 1 and then is discharged through the gas outlet 11 at the top, the muddy water flows back downwards into the settling cavity 14 through the muddy water backflow channel 15 between the primary separation part 3 and the flow guide part 2, the muddy water is separated in the settling cavity 14, namely sludge is settled, wherein the water can be discharged through the water outlet 12 on the side wall of the cylinder body 1, and the sludge flows back to the lower part in the cylinder body 1 through the sludge backflow channel 16 between the primary separation part 3 and the blocking part 4. Thereby, the water inlet path of the three-phase separator is from bottom to top through the primary separation chamber 31 into the degassing chamber 21, the sludge-water return path is from the degassing chamber 21 down through the sludge-water return channel 15 into the settling chamber 14, and the sludge return path is from the settling chamber 14 down through the sludge return path 16 into the lower part inside the cylinder 1, i.e. the water inlet path of the three-phase separator is separated from the sludge-water return path and the sludge return path.

A three-phase separator according to another embodiment of the invention is described below with reference to fig. 2.

As shown in fig. 2, the three-phase separator according to the embodiment of the present invention includes a drum 1, a guide member 2, a primary separating member 3, a blocking member 4, and a gas collecting cover 5.

The top wall of the cylinder 1 is substantially straight, the gas-collecting hood 5 is arranged in the cylinder 1, the upper end of the gas-collecting hood 5 is connected with the inner surface of the top wall of the cylinder 1, the peripheral surface of the gas-collecting hood 5 is spaced from the inner wall surface of the cylinder 1, and the gas-collecting hood 5 is positioned above the flow guide component 2. The gas-collecting hood 5 is a cylinder with a generally truncated cone shape, and a gas-collecting cavity 51 is arranged in the gas-collecting hood 5, and the gas-collecting cavity 51 is communicated with the gas outlet 11 on the top wall of the cylinder 1.

The upper end of the flow guide component 2 is connected with the lower end of the gas collecting hood 5, and the peripheral surface of the flow guide component 2 is spaced from the inner wall surface of the cylinder 1. The degassing chamber 21 of the flow guide part 2 communicates with the gas collection chamber 51.

Sedimentation chambers 14 are formed between the outer peripheral surface of the gas collecting hood 5 and the inner wall surface of the cylindrical body 1, between the outer peripheral surface of the flow guide member 2 and the inner wall surface of the cylindrical body 1, and between the outer peripheral surface of the lower end of the primary separating member 3 and the inner wall surface of the cylindrical body 1.

The other construction and operation of the three-phase separator shown in fig. 2 may be the same as the embodiment shown in fig. 1 and will not be described in detail here.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A three-phase separator, comprising:

the top wall of the barrel is provided with an air outlet, the upper part of the side wall of the barrel is provided with a water outlet, and the lower part of the barrel is provided with a three-phase mixed liquid inlet;

the flow guide part is arranged at the upper part in the cylinder body, a degassing cavity is formed in the flow guide part and is communicated with the air outlet, at least part of the flow guide part is spaced from the inner wall surface of the cylinder body, the flow guide part is an inverted truncated cone-shaped cylinder, and the upper end of the flow guide part is connected with the periphery of the top wall of the cylinder body;

the primary separation part is arranged in the cylinder, a primary separation cavity communicated with the three-phase mixed liquid inlet and the degassing cavity is arranged in the primary separation part, the upper end of the primary separation part extends into the degassing cavity, the lower end of the primary separation part extends out of the degassing cavity, at least partial sedimentation cavities are formed between the lower end of the primary separation part and the inner wall surface of the cylinder and between the flow guide part and the inner wall surface of the cylinder, the water outlet is communicated with the sedimentation cavity, a muddy water backflow channel communicated with the sedimentation cavity and the degassing cavity is formed between the primary separation part and the lower end surface of the flow guide part, and the primary separation part is a truncated cone-shaped cylinder;

and the blocking component is arranged on the inner wall surface of the cylinder, and a sludge return channel is formed between the lower end surface of the primary separation component and the blocking component.

2. A three-phase separator according to claim 1, wherein the top wall of the cartridge is conical and forms a gas collection hood, the gas outlet being formed in the center of the gas collection hood.

3. The three-phase separator according to claim 1, further comprising a gas collection hood, an upper end of the gas collection hood being attached to the top wall of the barrel, the gas collection hood having a gas collection chamber therein communicating with the gas outlet and the degassing chamber, the gas collection hood being spaced from the interior wall surface of the barrel.

4. A three-phase separator according to claim 3, wherein the gas-collecting channel is a truncated cone-shaped cylinder.

5. The separator of claim 4, wherein the flow guide member is an inverted truncated cone, and an upper end of the flow guide member is connected to a lower end of the gas collecting hood.

6. A three-phase separator according to claim 2, wherein the flow guide member is formed integrally with the gas collecting channel.

7. The separator of claim 1, wherein the barrier member is annular and the surface of the barrier member is sloped radially downward from outside to inside.

8. A three-phase separator according to claim 1, wherein the blocking member is annular and has a triangular axial cross-section.