Sludge flow trap

Abstract

The utility model relates to the technical field of oil field surface engineering oil gas treatment equipment, in particular to a slug flow catcher which comprises an inlet pipe, a gas phase manifold, a liquid communicating pipe, a liquid discharging manifold, at least one first pipeline assembly and at least one second pipeline assembly. The heights of the gas phase manifold, the inlet pipe, the liquid communicating pipe and the liquid discharging manifold are sequentially reduced, the first end of the first pipeline assembly, the first end of the second pipeline assembly and the outlet end of the inlet pipe are communicated with one another, the second end of the first pipeline assembly is communicated with the gas phase manifold, and the second end of the second pipeline assembly is communicated with the liquid discharging manifold. And the second end of the second pipeline assembly is communicated with the liquid communicating pipe. The slug flow is subjected to primary gas-liquid separation from the outlet end of the inlet pipe, part of gas continues to be subjected to gas-liquid separation from the first pipeline assembly, part of liquid enters the conveying pipeline through the second pipeline assembly and the liquid communicating pipe to continue to be subjected to gas-liquid separation, and the multi-time gas-liquid separation effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas processing equipment for oilfield surface engineering, in particular to a slug flow catcher. Background Art

[0002] As an important receiving facility for large onshore terminals in offshore oil and gas fields, tubular slug flow catchers play an important role. Slug flow can also cause pressure fluctuations in downstream equipment, violent fluctuations in gas and liquid instantaneous flow rates, shock and vibration to equipment and pipelines, etc., which can have a significant adverse effect on the operation of downstream equipment.

[0003] like Figure 6 As shown, the existing tubular slug flow collector includes an inlet pipe 1', a gas phase manifold 3', a drainage manifold 8', a liquid phase outlet 9', a plurality of liquid downcomers 501' and a plurality of conveying pipelines 7', the liquid downcomers 501' and the conveying pipelines 7' correspond to each other one by one, the inlet pipe 1' is connected with a diverter pipe 13, the axis of the diverter pipe 13 is perpendicular to the axis of the inlet pipe 1', the conveying pipeline 7' is connected with the gas phase manifold 3' through a vertical pipe 4', the slug flow in the inlet pipe 1' flows to the plurality of liquid downcomers 501' through the diverter pipe 13, and then flows to the conveying pipeline 7' for gas-liquid separation, the separated gas is collected from the vertical pipe 4' to the gas phase manifold 3' for discharge, and the remaining liquid is collected to the drainage manifold 8' and discharged through the liquid phase outlet 9'.

[0004] However, the above-mentioned slug flow catcher, the delivery pipe 7' located between the liquid downcomer 501' and the vertical pipe 4' and the connection end of the delivery pipe 7' needs to be at least 25 meters long to ensure a good gas-liquid separation effect, which occupies a large area. In addition, since the slug flow cannot directly separate the gas and liquid from the inlet pipe 1', the gas separated in the inlet pipe 1' needs to enter the delivery pipe 7' together with the liquid until it is discharged from the vertical pipe 4' connected to the top of the delivery pipe 7'. However, since the gas is relatively light, the gas in the delivery pipe 7' will appear to flow back to the inlet pipe 1', and the efficiency of gas-liquid separation is also low. Utility Model Content

[0005] (I) The problem to be solved by the present invention is: how to reduce the footprint of the slug flow catcher while ensuring the separation effect and improving the separation efficiency of the slug flow catcher.

[0006] (II) Technical solution

[0007] The utility model provides a slug flow collector, comprising: an inlet pipe, a gas phase manifold, a liquid connecting pipe, a liquid discharge manifold, at least one first pipeline component and at least one second pipeline component;

[0008] The axial direction of the gas phase manifold, the axial direction of the liquid connecting pipe and the axial direction of the drain manifold are all the same, and the axial direction of the gas phase manifold is perpendicular to the axial direction of the inlet pipe;

[0009] In the vertical direction, the heights of the gas phase manifold, the inlet pipe, the liquid connecting pipe, and the drain manifold are sequentially reduced;

[0010] The first end of the first pipe assembly, the first end of the second pipe assembly and the outlet end of the inlet pipe are connected to each other;

[0011] The second end of the first pipeline assembly is communicated with the gas phase manifold, and the second end of the second pipeline assembly is communicated with the liquid communication pipe;

[0012] The liquid connecting pipe is connected to the liquid drain manifold through a plurality of delivery pipes, and the plurality of delivery pipes are connected to the gas phase manifold through vertical pipes respectively.

[0013] According to an embodiment of the present invention, the outlet end of the inlet pipe is connected to a Y-shaped pipe, and two outlet ends of the Y-shaped pipe are respectively connected to the first pipeline assembly and the second pipeline assembly.

[0014] According to an embodiment of the present utility model, two of each of the first pipeline assembly and the second pipeline assembly are provided, and the first pipeline assembly and the second pipeline assembly correspond to each other one by one;

[0015] The two outlet ends of the Y-shaped tube are respectively connected to a first three-way structure and a second three-way structure, the two outlet ends of the first three-way structure are respectively connected to the two first pipeline components, and the two outlet ends of the second three-way structure are respectively connected to the two second pipeline components.

[0016] According to one embodiment of the utility model, the first pipeline assembly includes a first three-way pipe and two first arc-shaped elbows, the inlet end of the first three-way pipe is connected to an outlet end of the Y-shaped pipe, the two outlet ends of the first three-way pipe are respectively connected to the two first arc-shaped elbows, and the end of the first arc-shaped elbow away from the first three-way pipe is connected to the side wall of the gas phase manifold through the gas phase pipe.

[0017] According to one embodiment of the utility model, the second pipeline assembly includes a second three-way pipe and two second arc-shaped elbows, the inlet end of the second three-way pipe is connected through the Y-shaped pipe, the two outlet ends of the second three-way pipe are respectively connected to the two second arc-shaped elbows, and the end of the second arc-shaped elbow away from the second three-way pipe is connected to the side wall of the liquid connecting pipe through a liquid downcomer.

[0018] According to an embodiment of the utility model, a flow guide is provided at one end of the vertical pipe close to the delivery pipeline, and the flow guide is inserted into the delivery pipeline to guide the liquid in the delivery pipeline.

[0019] According to an embodiment of the utility model, the vertical pipe is arranged obliquely relative to the conveying pipeline, the axis of the vertical pipe and the axis of the conveying pipeline are located in the same vertical plane, one end of the vertical pipe connected to the gas phase manifold is the first end of the vertical pipe, and the other end is the second end of the vertical pipe;

[0020] The projection of the standpipe on the delivery pipe is located between the second end of the standpipe and the liquid connecting pipe.

[0021] According to an embodiment of the present invention, the length of the first pipe assembly is greater than the length of the second pipe assembly.

[0022] According to an embodiment of the utility model, one end of the delivery pipeline close to the drainage manifold is lower than the other end thereof, and the drainage manifold is connected to a liquid phase outlet.

[0023] According to an embodiment of the present invention, the curvature of the second curved elbow and the curvature of the first curved elbow are both 90 degrees.

[0024] Beneficial effects of the utility model:

[0025] The slug flow undergoes initial gas-liquid separation from the outlet end of the inlet pipe, and part of the separated gas continues to undergo gas-liquid separation in the first pipeline component, and part of the separated liquid enters the delivery pipeline through the second pipeline component and the liquid connecting pipe for further gas-liquid separation. The multiple gas-liquid separation effects are good, and the upper and lower double-layer design can reduce the length of the delivery pipeline between the liquid downcomer and the vertical pipe and the connection end of the delivery pipeline, reduce the floor space, and ensure a good gas-liquid separation effect. In addition, since a gas-liquid separation is directly performed at the outlet end of the inlet pipe, the gas separated by the slug flow at the inlet pipe does not need to follow the liquid into the delivery pipeline, thereby reducing the gas-liquid flow in the delivery pipeline, reducing the liquid flow rate, facilitating gas-liquid separation, and reducing the reverse reflux of the gas in the delivery pipeline to the inlet pipe, thereby improving the efficiency of gas-liquid separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A first stereoscopic view of a first embodiment of a slug catcher provided by an embodiment of the utility model;

[0028] Figure 2 A second stereoscopic view of the first embodiment of the slug catcher provided by the embodiment of the utility model;

[0029] Figure 3 A front view of a first embodiment of a slug flow catcher provided by an embodiment of the utility model;

[0030] Figure 4 The embodiment of the utility model provides Figure 3 A magnified view of part A;

[0031] Figure 5 A top view of a second embodiment of a slug catcher provided by an embodiment of the utility model;

[0032] Figure 6 It is a front view of an existing slug catcher.

[0033] Icons: 1. Inlet pipe; 2. First pipeline assembly; 201. Gas phase pipe; 202. First three-way pipe; 203. First arc-shaped elbow; 3. Gas phase manifold; 4. Vertical pipe; 5. Second pipeline assembly; 501. Liquid downcomer; 502. Second three-way pipe; 503. Second arc-shaped elbow; 6. Liquid connecting pipe; 7. Delivery pipeline; 8. Drainage manifold; 9. Liquid phase outlet; 10. Y-type pipe; 11. First three-way structure; 12. Flow guide. DETAILED DESCRIPTION

[0034] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Embodiment 1:

[0036] like Figures 1 to 4 As shown, the first embodiment of the utility model provides a slug flow collector, comprising: an inlet pipe 1, a gas phase manifold 3, a liquid connecting pipe 6, a liquid discharge manifold 8, at least one first pipeline assembly 2 and at least one second pipeline assembly 5;

[0037] The axial direction of the gas phase manifold 3, the axial direction of the liquid connecting pipe 6 and the axial direction of the drain manifold 8 are all the same, and the axial direction of the gas phase manifold 3 is perpendicular to the axial direction of the inlet pipe 1;

[0038] In the vertical direction, the heights of the gas phase manifold 3, the inlet pipe 1, the liquid connecting pipe 6, and the drain manifold 8 decrease in sequence;

[0039] The first end of the first pipe assembly 2, the first end of the second pipe assembly 5 and the outlet end of the inlet pipe 1 are connected to each other;

[0040] The second end of the first pipeline assembly 2 is connected to the gas phase manifold 3, and the second end of the second pipeline assembly 5 is connected to the liquid connecting pipe 6;

[0041] The liquid connecting pipe 6 is connected to the liquid drain manifold 8 via a plurality of delivery pipes 7 , and the plurality of delivery pipes 7 are connected to the gas phase manifold 3 via vertical pipes 4 .

[0042] Specifically, the slug flow undergoes initial gas-liquid separation from the outlet end of the inlet pipe 1, and part of the separated gas continues to undergo gas-liquid separation in the first pipe assembly 2, and part of the separated liquid enters the delivery pipe 7 through the second pipe assembly 5 and the liquid connecting pipe 6 for further gas-liquid separation. The multiple gas-liquid separation effects are good, and the upper and lower double-layer design can reduce the length of the delivery pipe 7 between the connecting end of the vertical pipe 4 and the delivery pipe 7 and the liquid connecting pipe 6 (i.e., the liquid connecting pipe 6 and the second end of the vertical pipe 4), reduce the floor space, and ensure a good gas-liquid separation effect. In addition, since a gas-liquid separation is directly performed at the outlet end of the inlet pipe 1, the gas separated by the slug flow at the inlet pipe 1 does not need to follow the liquid into the delivery pipe 7, thereby reducing the gas-liquid flow rate in the delivery pipe, reducing the liquid flow rate, facilitating gas-liquid separation, and reducing the reverse reflux of the gas in the delivery pipe 7 to the inlet pipe 1, thereby improving the efficiency of gas-liquid separation.

[0043] For the convenience of description, the section of the delivery pipeline 7 from the liquid connecting pipe 6 to the vertical pipe 4 is recorded as the first section of the delivery pipeline 7, and the section of the delivery pipeline 7 from the vertical pipe 4 to the drainage manifold 8 is recorded as the second section of the delivery pipeline 7.

[0044] The gas separated in the inlet pipe 1 flows from the outlet end of the inlet pipe 1 to the first pipeline assembly 2 for gas-liquid separation. The separated gas converges to the gas phase manifold 3 and is discharged from the gas phase manifold 3. The separated liquid flows from the vertical pipe 4 into the conveying pipeline 7.

[0045] The liquid separated in the inlet pipe 1 by the slug flow flows from the outlet end of the inlet pipe 1 to the second pipe assembly 5, and then flows from the second pipe assembly 5 to the liquid connecting pipe 6, and is evenly transported to multiple transport pipes 7 after being gathered from the liquid connecting pipe 6. The portion between the liquid connecting pipe 6 and the connecting end of the transport pipe 7 and the vertical pipe 4 (i.e., the first section of the transport pipe 7) can be subjected to secondary gas-liquid separation, and the separated gas is transported from the vertical pipe 4 to the gas phase manifold 3, and finally discharged from the gas phase manifold 3;

[0046] It should be noted that, after the slug flow in the prior art flows out from the outlet end of the inlet pipe 1', it directly flows through multiple branch pipes 13, passes through multiple liquid downcomers 501', and finally flows into the conveying pipeline 7' for gas-liquid separation. At this time, the gas-liquid ratio in each liquid downcomer 501' is different, which will cause biased flow, and then there will be more gas and less liquid in one or more of the conveying pipelines 7'. In the conveying pipeline 7', due to the large amount of gas and the high overall flow rate, in the conveying pipeline 7' of the same length, the gas-liquid separation effect in the conveying pipeline 7' with more gas is poor.

[0047] Based on this, in this embodiment, by connecting the first pipeline assembly 2 at the outlet end of the inlet pipe 1, part of the gas in the slug flow is separated out, so that the amount of gas entering the second pipeline assembly 5 is reduced, and the gas deviation is reduced. In addition, by providing a liquid connecting pipe 6, the liquid in the second pipeline assembly 5 is gathered in the liquid connecting pipe 6, and the gas and liquid are evenly distributed in the liquid connecting pipe 6 and flow out from the liquid connecting pipe 6 to multiple conveying pipes 7, further reducing the occurrence of liquid deviation, so that the gas and liquid distribution in each conveying pipe 7 is even, and the gas-liquid separation efficiency is improved.

[0048] As a specific embodiment, the outlet end of the inlet pipe 1 is connected to a Y-shaped pipe 10 , and the two outlet ends of the Y-shaped pipe 10 are respectively connected to the first pipe assembly 2 and the second pipe assembly 5 .

[0049] When the distance from the outlet end of the inlet pipe 1 to the connection between the vertical pipe 4 and the delivery pipe 7 is constant, an angle α is formed between the two outlet ends of the Y-shaped pipe 10, α is an acute angle, and the smaller the acute angle, the smoother the gas-liquid splitting when the slug flow flows from the outlet end of the inlet pipe 1 to the first pipeline assembly 2 and the second pipeline assembly 5, that is, it is conducive to the stratified flow of gas. In this embodiment, preferably, the angle between the axes of the two outlet ends of the Y-shaped pipe 10 is 45 degrees.

[0050] As a specific embodiment, the first pipeline assembly 2 includes a first three-way pipe 202 and two first arc-shaped elbows 203. The inlet end of the first three-way pipe 202 is connected to an outlet end of the Y-shaped pipe 10, and the two outlet ends of the first three-way pipe 202 are respectively connected to the two first arc-shaped elbows 203. The end of the first arc-shaped elbow 203 away from the first three-way pipe 202 is connected to the side wall of the gas phase manifold 3 through the gas phase pipe 201.

[0051] Part of the gas separated from the slug flow flows out from the outlet end of the inlet pipe 1, enters the first three-way pipe 202, and then flows to the first arc-shaped elbow 203 through the two outlet ends of the first three-way pipe 202, and then undergoes gas-liquid separation in the gas phase pipe 201. Finally, the separated gas converges into the gas phase manifold 3 and is discharged from the gas phase manifold 3.

[0052] By providing the first curved bend 203, when the gas is divided and flows into different gas phase pipes 201, its flow direction is smoother, the flow is more stable, and the radial velocity gradient is reduced. Preferably, the curvature of the first curved bend 203 is 90 degrees.

[0053] As a specific embodiment, the second pipeline assembly 5 includes a second three-way pipe 502 and two second arc-shaped elbows 503. The inlet end of the second three-way pipe 502 is connected through the other outlet end of the Y-shaped pipe 10, and the two outlet ends of the second three-way pipe 502 are respectively connected to the two second arc-shaped elbows 503. The end of the second arc-shaped elbow 503 away from the second three-way pipe 502 is connected to the side wall of the liquid connecting pipe 6 through the liquid downcomer 501.

[0054] Part of the liquid separated from the slug flow flows out from the outlet end of the inlet pipe 1, enters the second three-way pipe 502, and then flows to the second arc-shaped elbow 503 through the two outlet ends of the second three-way pipe 502, and then flows to the liquid connecting pipe 6 through the corresponding liquid downcomer 501, and flows from the liquid connecting pipe 6 to multiple conveying pipes 7 for secondary gas-liquid separation.

[0055] In the existing slug flow catcher, the slug flow in the inlet pipe is transported to the conveying pipe 7' through the diverter pipe 13. The axes of the inlet pipe 1' and the conveying pipe 7' are both perpendicular to the axis of the diverter pipe 13. After the slug flow enters the diverter pipe 13 from the outlet end of the inlet pipe 1', its flow direction changes significantly. The diverter pipe 13 and the inlet pipe 1' and the liquid downcomer 501' are connected by a three-way pipe fitting. Most of the existing three-way pipe fittings are right-angled. The three-way pipe fitting and the pipe wall of the diverter pipe 13 will be greatly impacted due to the significant change in the liquid flow direction, which reduces the service life of the slug flow catcher. In addition, since the slug flow catcher as a whole is impacted and vibrates, the impact will generate a large number of bubbles and small droplets, increase the gas-liquid two-phase separation load, reduce the separation efficiency, and generate a large noise during the impact.

[0056] In this embodiment, the liquid flows from the outlet end of the second three-way pipe 502 into the second curved elbow 503. Since the second curved elbow 503 is a curved pipe, the liquid can flow along the second curved elbow 503, thereby making the liquid flow smoother and reducing the impact. The large number of bubbles and small droplets generated by the impact are reduced, the gas-liquid two-phase separation load is reduced, the separation efficiency is improved, and the noise is reduced due to the reduced impact. Preferably, the curvature of the second curved elbow 503 is 90 degrees.

[0057] As a specific embodiment, Figure 4 As shown, a flow guide 12 is provided at one end of the vertical pipe 4 close to the delivery pipeline 7 . The flow guide 12 is inserted into the delivery pipeline 7 to guide the liquid in the delivery pipeline 7 .

[0058] In this embodiment, the guide member 12 is an arc guide plate, which is welded to the end surface of the second end of the vertical pipe 4. It should be explained that one end of the guide plate is fixedly connected to the side of the second end surface of the vertical pipe 4 close to the drainage manifold 8.

[0059] This design ensures that the small amount of gas separated from the first section of liquid in the delivery pipeline 7 will not be diverted by the arc guide plate to the center of the pipeline to mix with the liquid when entering the vertical pipe 4, and will not affect the gas-liquid separation effect.

[0060] By setting the guide member 12 and extending the guide member 12 into the conveying pipe 7, the projection length of the guide member 12 in the cross-sectional direction of the conveying pipe 7 is one tenth of the diameter of the conveying pipe 7 (the cross-sectional direction of the conveying pipe 7 is perpendicular to the axis of the conveying pipe 7), and the liquid flows from the liquid connecting pipe 6 to the conveying pipe 7. When the liquid located at the side wall contacts the guide member 12, the guide member 12 guides the liquid near the side wall to the center of the conveying pipe 7, thereby destroying the boundary layer of the fluid in the conveying pipe 7 and increasing the liquid flow rate near the side wall. When the average flow rate on the cross-section of the conveying pipe 7 remains unchanged, the flow rate at the side wall is increased, and then the flow rate at the center of the conveying pipe 7 is reduced, so that the flow rate in the conveying pipe 7 is more uniform, and the effect of gas-liquid separation for the liquid at the center of the pipe is better.

[0061] As a specific embodiment, the vertical pipe 4 is inclined relative to the conveying pipeline 7, the axis of the vertical pipe 4 and the axis of the conveying pipeline 7 are located in the same vertical plane, one end of the vertical pipe 4 connected to the gas phase manifold 3 is the first end of the vertical pipe 4, and the other end is the second end of the vertical pipe 4;

[0062] The projection of the vertical pipe 4 on the conveying pipe 7 is located between the second end of the vertical pipe 4 and the liquid connecting pipe 6. Such a design ensures that the flow direction of the liquid separated from the gas phase pipe 201 is close to the flow direction of the liquid in the conveying pipe 7 when it flows along the pipe wall of the vertical pipe 4. Therefore, when the liquid in the vertical pipe 4 merges into the conveying pipe 7, it is not easy for the two liquids to cause a chaotic flow pattern due to the different liquid directions, so that the liquid flows more smoothly.

[0063] According to actual conditions, an angle β is formed between the axis of the vertical pipe 4 and the axis of the delivery pipe 7. By selecting an appropriate length of the gas phase pipe 201, without affecting the gas-liquid separation in the gas phase pipe 201, the larger the angle β is, the closer the flow direction of the liquid in the vertical pipe 4 is to the flow direction of the liquid in the delivery pipe 7, thereby preventing a chaotic liquid flow pattern from occurring.

[0064] Of course, in this embodiment, the flow guide 12 can also be in other forms, for example, the flow guide 12 is a pipe with the same diameter as the vertical pipe 4, and when the vertical pipe 4 is assembled with the delivery pipe 7, the flow guide 12 is inserted into the delivery pipe 7. The vertical pipe 4 and the flow guide 12 are integrally formed.

[0065] As a specific embodiment, the length of the first pipe assembly 2 is greater than the length of the second pipe assembly 5 .

[0066] The length of the first pipe assembly 2 is greater than that of the second pipe assembly 5 , so that the distance from the liquid connecting pipe 6 to the second end of the vertical pipe 4 is longer, so that the gas-liquid separation time is longer and the separation effect is better.

[0067] As a specific embodiment, one end of the delivery pipeline 7 close to the drainage manifold 8 is lower than the other end thereof, and the drainage manifold 8 is connected to a liquid phase outlet 9 .

[0068] Specifically, the delivery pipe 7 is inclined relative to the horizontal plane, and a slope of 1%-2.5% is formed between the delivery pipe 7 and the horizontal plane. The liquid is collected in the drainage manifold 8 and then discharged through the liquid phase outlet 9.

[0069] Specifically, when the liquid is transported in the inlet pipe 1, the slug flow formed in the liquid will undergo initial gas-liquid separation in the inlet pipe 1, and the separated part of the liquid will enter the first tee pipe 202 through the outlet end of the inlet pipe 1 and one of the outlet ends of the Y-shaped pipe 10, and will be diverted to the two first arc-shaped elbows 203 through the two outlet ends of the first tee pipe 202, and then flow to the gas phase pipe 201 for gas-liquid separation, and the separated gas will enter the gas phase manifold 3 and be discharged from the outlet end of the gas phase manifold 3, and the separated liquid will be gathered at the bottom of the gas phase manifold 3 and will enter the delivery pipe 7 through the vertical pipe 4, and after being gathered with the liquid in the delivery pipe 7, it will be transported to the drainage manifold 8, and finally discharged from the liquid phase outlet 9;

[0070] Part of the liquid separated from the inlet pipe 1 enters the second three-way pipe 502 through the other outlet end of the Y-tube 10, is diverted to the two second arc-shaped elbows 503 through the two outlet ends of the second three-way pipe 502, and then continues to flow to the liquid downcomer 501 and converges into the liquid connecting pipe 6. The liquid flows to multiple conveying pipes 7 in the liquid connecting pipe 6. When the gas separated from the liquid passes through the second end of the vertical pipe 4, it enters from the second end of the vertical pipe 4, enters the gas phase manifold 3 through the vertical pipe 4, and flows out from the outlet end of the gas phase manifold 3. The remaining liquid is transported to the discharge manifold 8 along the conveying pipe 7, and is finally discharged from the liquid phase outlet 9.

[0071] Embodiment 2:

[0072] Embodiment 2 of the present invention provides another slug flow collector, such as Figure 5As shown, two first pipeline assemblies 2 and two second pipeline assemblies 5 are provided, and the first pipeline assemblies 2 and the second pipeline assemblies 5 correspond one to one;

[0073] The two outlet ends of the Y-shaped tube 10 are respectively connected to the first three-way structure 11 and the second three-way structure, both of which are three-way tubes, and the first three-way structure 11 is located above the second three-way structure. The two outlet ends of the first three-way structure 11 are respectively connected to the two first pipeline components 2, and the two outlet ends of the second three-way structure are respectively connected to the two second pipeline components 5.

[0074] It should be noted that when there are multiple first pipe assemblies 2 and second pipe assemblies 5, the number of first pipe assemblies 2 is recorded as N (N is greater than or equal to 2, and N is a power of 2), the number of first three-way structures 11 is (N-1), and the first three-way structures 11 are distributed in a tree diagram (that is, in the direction from the Y-tube 10 to the gas phase manifold 3, the number of first three-way structures 11 gradually increases.

[0075] Similarly, the number of the second pipe assemblies 5 is the same as the number of the first pipe assemblies 2 and corresponds one to one, and the number and connection distribution of the second three-way structures are the same as those of the first three-way structures 11.

[0076] It should be noted that, along the direction from the inlet pipe 1 to the drain manifold 8 , the sizes of the plurality of first three-way structures 11 and the sizes of the plurality of second three-way structures decrease in sequence.

[0077] When the number of the first three-way structure 11 and the second three-way structure is large, for example, when there are 7 first three-way structures 11 and 7 second three-way structures, at this time, along the direction from the inlet pipe 1 to the drainage manifold 8, the size of the first three-way structure 11 and the size of the second three-way structure decrease successively, that is, the first three-way structure 11 and the second three-way structure are distributed in a tree-like shape.

[0078] Each group of first pipeline components 2 is correspondingly provided with two vertical pipes 4.

[0079] Specifically, when N is 4, the number of the first three-way structures 11 is 3, which are respectively recorded as tee A, tee B1, and tee B2. The inlet end of tee A is connected to one of the outlet ends of the Y-shaped tube 10, and the two outlet ends of tee A are respectively connected to tee B1 and tee B2, and the two outlet ends of tee B1 and the two outlet ends of tee B2 are respectively connected to the first end of the corresponding first pipeline component 2. At this time, the number of the second three-way structures is 3, which are respectively recorded as tee C, tee D1, and tee D2. The inlet end of tee C is connected to the other outlet end of the Y-shaped tube 10, and the two outlet ends of tee C are respectively connected to tee D1 and tee D2, and the two outlet ends of tee D1 and the two outlet ends of tee D2 are respectively connected to the first end of the corresponding second pipeline component 5.

[0080] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0081] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A slug flow catcher, characterized in that: include: An inlet pipe (1), a gas phase manifold (3), a liquid connecting pipe (6), a liquid discharge manifold (8), at least one first pipeline component (2) and at least one second pipeline component (5); The axial direction of the gas phase manifold (3), the axial direction of the liquid connecting pipe (6) and the axial direction of the liquid discharge manifold (8) are all the same, and the axial direction of the gas phase manifold (3) is perpendicular to the axial direction of the inlet pipe (1); In the vertical direction, the heights of the gas phase manifold (3), the inlet pipe (1), the liquid connecting pipe (6), and the drainage manifold (8) are successively reduced; The first end of the first pipe assembly (2), the first end of the second pipe assembly (5) and the outlet end of the inlet pipe (1) are connected to each other; The second end of the first pipeline component (2) is in communication with the gas phase manifold (3), and the second end of the second pipeline component (5) is in communication with the liquid communication pipe (6); The liquid connecting pipe (6) is connected to the liquid drainage manifold (8) via a plurality of delivery pipes (7), and the plurality of delivery pipes (7) are connected to the gas phase manifold (3) via vertical pipes (4) respectively.

2. The slug catcher according to claim 1, characterized in that: The outlet end of the inlet pipe (1) is connected to a Y-shaped pipe (10), and the two outlet ends of the Y-shaped pipe (10) are respectively connected to the first pipe assembly (2) and the second pipe assembly (5).

3. The slug catcher according to claim 2, characterized in that: The first pipeline assembly (2) and the second pipeline assembly (5) are each provided with two, and the first pipeline assembly (2) and the second pipeline assembly (5) correspond one to one; The two outlet ends of the Y-shaped tube (10) are respectively connected to a first three-way structure (11) and a second three-way structure; the two outlet ends of the first three-way structure (11) are respectively connected to the two first pipeline components (2); and the two outlet ends of the second three-way structure are respectively connected to the two second pipeline components (5).

4. The slug catcher according to claim 2, characterized in that: The first pipeline assembly (2) comprises a first three-way pipe (202) and two first arc-shaped elbows (203); the inlet end of the first three-way pipe (202) is connected to an outlet end of the Y-shaped pipe (10); the two outlet ends of the first three-way pipe (202) are respectively connected to the two first arc-shaped elbows (203); and one end of the first arc-shaped elbow (203) away from the first three-way pipe (202) is connected to the side wall of the gas phase manifold (3) through the gas phase pipe (201).

5. The slug catcher according to claim 4, characterized in that: The second pipeline assembly (5) comprises a second three-way pipe (502) and two second curved elbows (503); the inlet end of the second three-way pipe (502) is connected via the Y-shaped pipe (10); the two outlet ends of the second three-way pipe (502) are respectively connected to the two second curved elbows (503); and one end of the second curved elbow (503) away from the second three-way pipe (502) is connected to the side wall of the liquid connecting pipe (6) via a liquid downcomer (501).

6. The slug catcher according to claim 1, characterized in that: A flow guide (12) is provided at one end of the vertical pipe (4) close to the delivery pipe (7); the flow guide (12) is inserted into the delivery pipe (7) and is used to guide the liquid in the delivery pipe (7).

7. The slug catcher according to claim 6, characterized in that: The vertical pipe (4) is arranged obliquely relative to the conveying pipeline (7), the axis of the vertical pipe (4) and the axis of the conveying pipeline (7) are located in the same vertical plane, one end of the vertical pipe (4) connected to the gas phase manifold (3) is the first end of the vertical pipe (4), and the other end is the second end of the vertical pipe (4); The projection of the standpipe (4) on the delivery pipe (7) is located between the second end of the standpipe (4) and the liquid connecting pipe (6).

8. The slug catcher according to claim 1, characterized in that: The length of the first pipe assembly (2) is greater than the length of the second pipe assembly (5).

9. The slug catcher according to claim 1, characterized in that: One end of the delivery pipeline (7) close to the drainage manifold (8) is lower than the other end thereof, and the drainage manifold (8) is connected to a liquid phase outlet (9).

10. The slug catcher according to claim 5, characterized in that: The curvature of the second curved tube (503) and the curvature of the first curved tube (203) are both 90 degrees.

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