CN220899891U - Gas-liquid separation device - Google Patents

Abstract

The utility model discloses a gas-liquid separation device, comprising: the device comprises a tank body, an air inlet and outlet assembly and a flow guiding assembly, wherein the tank body is provided with an air outlet; the gas inlet and outlet assembly extends into the tank body and sends the gas phase mixture to the bottom of the tank body; the diversion component comprises an upper pore plate, an upper diversion ring, a lower diversion ring and a lower pore plate which are sequentially arranged in the tank body from top to bottom. The device is used for the water seal safety treatment of the outlet gas phase of the mesophase pitch and universal grade pitch device, and eliminates most of the gas phase according to physical characteristics, and simultaneously cools the high-temperature gas to a condensation point state.

Description

Gas-liquid separation device

Technical Field

The utility model relates to the technical field of mesophase pitch separation, in particular to a gas-liquid separation device.

Background

In the production process of mesophase pitch and general-purpose pitch, toxic and harmful gas-phase effluent with certain flow rate and high temperature can be generated, and the gas-phase effluent needs to be subjected to gas-liquid separation before entering an emptying pipeline, and is recycled.

The existing gas-liquid separation device of the intermediate-phase asphalt and general-grade asphalt device mainly utilizes the gravity principle, gas-liquid mixture enters from a pipeline to reach the bottom end of a separator, and liquid is left at the bottom end and gas is discharged from the top end due to different physical properties of the liquid and the gas. The separator with a single structure has low separation efficiency, and has low gas separation efficiency and poor effect after the gas flow rate exceeds a certain range.

The publication number is CN 112755594A, a gas-liquid separator is disclosed, a cyclone foam breaking device, a demisting and separating device, a defoaming paddle and a foam buffer chamber are arranged in a cavity of the gas-liquid separator, and a gas outlet and a liquid outlet are arranged outside the cavity of the gas-liquid separator; the cyclone bubble breaking device comprises an upper outlet and a lower outlet, and is used for separating the gas-liquid-gas phase mixture into a gas-gas phase mixture and a liquid-gas phase mixture, the gas-gas phase mixture escapes from the upper outlet, and the liquid-gas phase mixture flows out from the lower outlet; the demisting and separating device is arranged at the top of the cavity and is used for condensing liquid in the gas-phase mixture; the defoaming paddle is used for eliminating foam of the liquid gas phase mixture; the foam buffer chamber is used for storing the liquid gas phase mixture higher than the preset liquid level height and chemically eliminating foam of the liquid gas phase mixture; the gas outlet is arranged at the top of the cavity; the liquid outlet is arranged at the bottom of the cavity. The foam crude oil is mainly of a horizontal structure, and is not suitable for gas-liquid separation of mesophase pitch and a general-purpose pitch device because the foam crude oil can not be eliminated to thoroughly separate gas from liquid when the foam crude oil is seriously subjected to the phenomenon of tank discharge in development and production of oil and gas fields if the foam crude oil exists in the foam crude oil with high viscosity and high content of colloid asphaltene.

Disclosure of utility model

The utility model provides a gas-liquid separation device for solving the gas-liquid separation problem of gas phases discharged by a mesophase pitch and universal asphalt device, which is used for water seal safety treatment of the gas phases at the outlet of the mesophase pitch and universal asphalt device, and eliminates most of the gas phases according to physical characteristics, and simultaneously cools high-temperature gas to a condensation point state.

In order to achieve the above object, the present utility model provides the following technical solutions.

The present utility model provides a gas-liquid separation apparatus comprising:

The tank body is provided with an air outlet;

the air inlet and outlet assembly extends into the tank body;

The flow guide assembly comprises an upper pore plate, an upper flow guide ring, a lower flow guide ring and a lower pore plate which are sequentially arranged in the tank body from top to bottom;

The gas inlet and outlet assembly sequentially penetrates through the upper pore plate, the upper guide ring, the lower guide ring and the lower pore plate and is used for conveying the gas phase mixture to the bottom of the tank body, and an outlet at the bottom of the gas inlet and outlet assembly is upward.

Optionally, the air inlet and outlet assembly comprises an air inlet pipeline and a distributor, wherein the air inlet pipeline enters from the side face of the tank body, extends downwards to the bottom of the tank body along the central axis direction of the tank body, and is connected with the distributor.

Optionally, the distributors are inclined upwards at an angle with the air inlet pipeline, the two distributors are symmetrically distributed left and right, and small holes are formed in the distributors.

Optionally, the lower guide ring is a conical surface with a downward opening, a guide port is reserved at the top end, and the outer ring is connected with the tank body;

The upper guide ring is a conical surface with an upward opening, the inner ring is connected with the air inlet pipeline, and the diameter of the section of the outer ring is smaller than the diameter of the inner wall of the tank body.

Optionally, the upper orifice plate and the lower orifice plate are both circular plates and are both connected with the tank body.

Optionally, the oil recovery assembly is also included;

The oil recovery assembly comprises an oil groove and an oil outlet pipe, the oil groove is arranged above the upper pore plate, the periphery of the oil groove is connected with the tank body, and the oil outlet pipe is arranged on the side of the tank body where the oil groove is located.

Optionally, the oil groove comprises a cylinder without a top and a bottom and an annular plate, wherein an inner ring of the annular plate is connected with the bottom end of the cylinder, and an outer ring of the annular plate is connected with the tank; the inlet line passes through the centre of the cylinder.

Optionally, the automatic water supply device further comprises a control unit, wherein the control unit comprises a pressure control instrument, a liquid level control instrument and a temperature control instrument, the pressure control instrument is arranged at the top of the tank, the temperature control instrument is arranged on the water inlet and outlet, and the liquid level control instrument is arranged on the side face of the tank body.

Optionally, the liquid level control instrument comprises an upper liquid level control unit and a lower liquid level control unit, wherein the upper liquid level control unit is positioned above the upper pore plate, and the lower liquid level control unit is positioned between the lower pore plate and the distributor.

Optionally, the integral pipeline of the air inlet and outlet assembly is made of stainless steel; the top and the bottom of the tank body are hemispherical, and the middle of the tank body is cylindrical.

Optionally, a bottom water outlet and a side water inlet are arranged at the bottom of the tank body, and the side water inlet is positioned below the lower pore plate.

Compared with the prior art, the utility model has the following beneficial effects:

The high-temperature gas-phase mixture is introduced into the separating tank through the gas inlet pipeline, reaches the bottom distributor along the gas inlet pipeline, is discharged through the distributor, and after the discharged gas phase with higher flow rate is buffered through the distributor, the upper guide ring, the lower orifice plate and the like, the gas phase flow rate is reduced/eliminated, the residence time of the discharged gas phase in the separator is prolonged, the discharged gas phase is fully mixed with cooling water in the separator, the gas phase flow rate is further reduced under the action of water resistance in the tank, and the separating efficiency is improved. The high-temperature gas phase is buffered and cooled by the separating tank under the action of cooling water, so that uncontrollability caused by high temperature is reduced, and the separating efficiency is increased. And the particles carried under the process conditions are separated, so that the impurities in the recovered oil are reduced. The whole process reduces the operation cost, improves the working efficiency and improves the economic benefit of the whole process.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present utility model, and are not particularly limited. In the drawings:

FIG. 1 is a schematic view of a gas-liquid separation device according to the present utility model;

FIG. 2 is a cross-sectional view of a gas-liquid separator according to the present utility model.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, shall fall within the scope of the utility model.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the gas-liquid separation device provided by the present utility model includes: the tank body 3, an air inlet and outlet assembly and a flow guiding assembly;

The tank body 3 is provided with an air outlet 1; the gas inlet and outlet assembly stretches into the tank body 3 and sends the gas phase mixture to the bottom of the tank body 3, and the gas phase mixture is uniformly discharged upwards; the diversion component comprises an upper pore plate 7, an upper diversion ring 9, a lower diversion ring 10 and a lower pore plate 11 which are sequentially arranged in the tank body 3 from top to bottom.

More specifically, the system also comprises an air inlet and outlet assembly, a flow guiding assembly, an oil recovery assembly and a control unit.

And the air inlet and outlet assembly comprises: it comprises an inlet line 4, a distributor 14, the whole line being made of stainless steel. The air inlet line 4 enters from the side of the tank body 3, and extends downwards along the central axis direction to the bottom of the gas-liquid separation tank and is connected with the distributor 14. The distributor 14 and the air inlet pipeline 4 are arranged symmetrically left and right and are provided with small holes for discharging air phase. The air outlet 1 is arranged at the top end of the tank body 3.

And the flow guiding assembly comprises: an upper guide ring 9, a lower guide ring 10, an upper orifice plate 7 and a lower orifice plate 11. The lower guide ring 10 is a conical surface with a downward opening, a guide port 16 is reserved at the top end, and the outer ring is connected with the tank body 3; the upper guide ring 9 is a conical surface with an upward opening, the inner ring is connected with the air inlet pipeline 4, and the diameter of the section of the outer ring is slightly smaller than that of the section of the separating tank, so that the upper guide ring is used for guiding and eliminating the lifting force of gas and liquid. The upper orifice plate 7 and the lower orifice plate 11 are circular plates and are connected with the tank body 3 for breaking oil bubbles generated by the air pressure at the outlet of the distributor 14.

Oil recovery subassembly: comprises an oil groove 6, an oil outlet pipe 5 and an oil level control unit. The oil groove 6 is formed by a cylinder 62 without a top and a bottom and an annular plate 61, wherein the inner ring of the annular plate 61 is connected with the bottom end of the cylinder 62, and the outer ring of the annular plate 61 is connected with the tank 3. The oil outlet pipe 5 and the oil level control unit are arranged at the side of the tank body 3. The oil recovery subassembly is as the preferred scheme, because of oil, water physical property difference, and the oil level can be above the water level, and when the oil exceeded oil groove 6 top, will get into in the oil groove 6, realized that the oil is collected and is stored, opens oil outlet pipe 5 again, recoverable oil.

And a control unit: the whole control unit comprises a pressure control instrument, a liquid level control instrument and a temperature control instrument. When the tank body 3 is filled with water or other liquid, the pressure control instrument, the liquid level control instrument and the temperature control instrument are used for detecting, an upper liquid level control unit 8 and a lower liquid level control unit 12 are arranged on the side face of the tank body 3, the upper liquid level control unit 8 is positioned between the lower side of the oil groove 6 and the upper pore plate 7, and the lower liquid level control unit 12 is positioned between the lower pore plate 11 and the distributor 14 and used for realizing the functions of liquid level monitoring and control.

The pressure control instrument is arranged at the top of the tank, if the pressure instrument 2 is adopted, the temperature control instrument is arranged at the water inlet and the water outlet, for example, a temperature acquisition unit can be arranged for realizing the monitoring and control of pressure and temperature.

The present utility model will be described in detail with reference to specific embodiments and drawings.

As shown in fig. 1 and 2, the embodiment of the utility model provides a gas-liquid separation device which is used for the water seal safety treatment of the outlet gas phase of a mesophase pitch and universal grade pitch device, and eliminates most of the gas phase according to physical characteristics, and simultaneously cools high-temperature gas to a condensation point state.

The main body part of the device consists of an air inlet pipeline 4, a distributor 14, a lower orifice plate 11, a lower guide ring 10, an upper guide ring 9, an upper orifice plate 7, an oil groove 6, an oil outlet pipe 5, an air outlet 1 and the like from bottom to top. The air inlet line 4 enters from the side of the tank body 3, and extends downwards along the central axis direction to the bottom of the gas-liquid separation tank and is connected with the distributor 14.

The distributor 14 and the air inlet pipeline 4 form a certain included angle, the outlets are upward, the distribution is left-right symmetrical, and small holes are arranged on the distributor 14 and used for reducing the pressure of gas phase and further reducing the flow rate of the gas phase.

The upper orifice plate 7 and the lower orifice plate 11 are circular plates and are connected with the tank body 3 for breaking oil bubbles generated by the air pressure at the outlet of the distributor 14. The lower guide ring 10 is a conical surface with a downward opening, a guide port 16 is reserved at the top end, and the outer ring is connected with the tank body 3; the upper guide ring 9 is a conical surface with an upward opening, the inner ring is connected with the air inlet pipeline 4, and the diameter of the section of the outer ring is slightly smaller than that of the section of the separating tank, so that the upper guide ring is used for guiding and eliminating the lifting force of gas and liquid.

The oil groove 6 is formed by a cylinder 62 without a top and a bottom and an annular plate 61, wherein the inner ring of the annular plate 61 is connected with the bottom end of the cylinder 62, and the outer ring of the annular plate 61 is connected with the tank 3. The oil outlet pipe 5 is arranged at the side of the tank body 3 and used for collecting and discharging oil products, and the air outlet 1 is arranged at the top end of the tank body 3 and used for discharging separated gas phases.

The top end of the tank body 3 is provided with a pressure instrument 2 for realizing a pressure measurement function; the side surface of the tank body 3 is provided with a side water inlet 13 which is positioned below the lower pore plate 11, and the bottom of the tank is provided with a bottom water outlet 15 for water inlet and outlet.

An upper liquid level control unit 8 and a lower liquid level control unit 12 are arranged on the side face of the tank body 3, the upper liquid level control unit 8 is positioned between the lower side of the oil groove 6 and the upper pore plate 7, and the lower liquid level control unit 12 is positioned between the lower pore plate 11 and the distributor 14 and is used for realizing a liquid level monitoring and controlling function.

The utility model has the following concrete implementation modes when in work:

When the temperature is 100-300 ℃, the high-temperature gas-phase mixture with the flow rate of 0.01-100L/min enters the separation tank through the gas inlet, reaches the bottom distributor 14 along the gas inlet line 4, passes through the distributor 14 and is discharged upwards. The gas phase mixture rises in the cooling water to the lower orifice plate 11, and bubbles generated by the gas pressure at the outlet of the distributor 14 are broken down by the lower orifice plate 11. The gas phase mixture after primarily breaking the oil bubbles continuously rises to strike the lower guide ring 10, most of downward kinetic energy generated after striking is offset with the rising gas phase kinetic energy at the bottom of the separating tank, the rising speed of the gas phase is primarily reduced, the rising gas phase rises from the top end of the lower guide ring 10 after the cyclic depressurization, the rising kinetic energy is secondarily reduced through the upper guide ring 9, the rising gas phase escapes from the outer circle of the upper guide ring 9 after the cyclic depressurization, the oil bubbles are secondarily eliminated through the upper orifice plate 7, the gas phase after final deoiling is discharged from the gas outlet 1 of the separating tank, and the separated oil product is left in the separating tank. The oil floating on the water surface enters the oil groove 6 and is recovered through the oil outlet pipe 5.

The gas-liquid separation device is suitable for separating the discharged gas phase of the mesophase pitch/universal asphalt process, and has the following advantages:

1. After the discharged gas phase with higher flow rate passes through the buffer of the parts such as the distributor 14, the upper guide ring 10, the lower orifice plate 11 and the like, the flow rate of the gas phase is reduced/eliminated, the residence time of the discharged gas phase in the separator is prolonged, the discharged gas phase is fully mixed with cooling water in the separator, the flow rate of the gas phase is further reduced under the action of water resistance in the tank, and the separation efficiency is improved.

2. Because the oil is insoluble in water and has a density lower than the physical property of water, the oil phase is separated out by the discharged gas phase under the action of water and floats on the water surface, so that the oil-water separation effect is realized.

3. The combustible gas exists in the high-temperature gas phase, so that the water can stop the safety risk of the whole process caused by accidents such as flash explosion, tempering and the like of the emptying pipeline.

4. The high-temperature gas phase is buffered and cooled by the separating tank under the action of cooling water, so that uncontrollability caused by high temperature is reduced, and the separating efficiency is increased.

5. The gas phase is mixed with cooling water through a separator, and then particles carried under the process conditions are separated, so that impurities in the recovered oil are reduced.

6. The utility model is convenient and better for collecting and storing the available oil products, reduces the operation cost, improves the working efficiency and improves the economic benefit of the whole process.

In addition, the embodiment of the utility model can adopt automatic control for liquid level, temperature and pressure collection, realize remote monitoring, accurately collect, reasonably store and improve recovery efficiency, simplify the operation flow of the recovery process, reduce personnel cost and improve economic benefit.

Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the applicant be deemed to have such subject matter not considered to be part of the disclosed subject matter.

The foregoing is a further elaboration of the present utility model, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, all shall be deemed to fall within the scope of the utility model as defined by the claims which are filed herewith.

Claims (9)

1. A gas-liquid separation apparatus, comprising:

the tank body (3), the tank body (3) is provided with an air outlet (1);

the air inlet and outlet assembly extends into the tank body (3);

The flow guide assembly comprises an upper pore plate (7), an upper flow guide ring (9), a lower flow guide ring (10) and a lower pore plate (11) which are sequentially arranged in the tank body (3) from top to bottom;

The gas inlet and outlet assembly sequentially passes through the upper orifice plate (7), the upper guide ring (9), the lower guide ring (10) and the lower orifice plate (11) and is used for conveying the gas phase mixture to the bottom of the tank body (3), and an outlet at the bottom of the gas inlet and outlet assembly is upward;

The lower guide ring (10) is a conical surface with a downward opening, a guide opening (16) is reserved at the top end, and the outer ring is connected with the tank body (3);

The upper guide ring (9) is a conical surface with an upward opening, the inner ring is connected with the air inlet pipeline (4), and the section diameter of the outer ring is smaller than the diameter of the inner wall of the tank body (3).

2. A gas-liquid separation device according to claim 1, characterized in that the gas inlet and outlet assembly comprises a gas inlet line (4) and a distributor (14), wherein the gas inlet line (4) enters from the side of the tank body (3), extends downwards to the bottom of the tank body (3) along the central axis direction of the tank body (3), and is connected with the distributor (14).

3. A gas-liquid separation device according to claim 2, characterized in that the distributors (14) form an included angle with the gas inlet line (4) and are inclined upwards, the two distributors (14) are symmetrically distributed left and right, and small holes are arranged on the distributors (14).

4. A gas-liquid separation device according to claim 1, characterized in that the upper orifice plate (7) and the lower orifice plate (11) are both circular plates and are both connected with the tank body (3).

5. The gas-liquid separation apparatus of claim 1, further comprising an oil recovery assembly;

The oil recovery assembly comprises an oil groove (6) and an oil outlet pipe (5), wherein the oil groove (6) is arranged above the upper pore plate (7), the periphery of the oil groove (6) is connected with the tank body (3), and the oil outlet pipe (5) is arranged on the side of the tank body (3) where the oil groove (6) is arranged.

6. A gas-liquid separation device according to claim 5, wherein the oil groove (6) comprises a cylinder (62) without a top and a bottom and an annular plate (61), wherein an inner ring of the annular plate (61) is connected with the bottom end of the cylinder (62), and an outer ring of the annular plate (61) is connected with the tank body (3).

7. The gas-liquid separation device according to claim 1, further comprising a control unit, wherein the control unit comprises a pressure control instrument, a liquid level control instrument and a temperature control instrument, the pressure control instrument is arranged at the top of the tank, the temperature control instrument is arranged on the water inlet and outlet, and the liquid level control instrument is arranged on the side face of the tank body (3).

8. A gas-liquid separation device according to claim 7, characterized in that the liquid level control instrument comprises an upper liquid level control unit (8) and a lower liquid level control unit (12), the upper liquid level control unit (8) is located above the upper orifice plate (7), and the lower liquid level control unit (12) is located between the lower orifice plate (11) and the distributor (14).

9. A gas-liquid separation apparatus according to claim 1, wherein the integral line of the gas inlet and outlet assembly is made of stainless steel; the top and the bottom of the tank body (3) are hemispherical, and the middle of the tank body is cylindrical; the bottom of the tank body (3) is provided with a bottom water outlet (15) and a side water inlet (13), and the side water inlet (13) is positioned below the lower pore plate (11).