CN217540379U - Slug flow catcher - Google Patents

Slug flow catcher Download PDF

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Publication number
CN217540379U
CN217540379U CN202220865214.5U CN202220865214U CN217540379U CN 217540379 U CN217540379 U CN 217540379U CN 202220865214 U CN202220865214 U CN 202220865214U CN 217540379 U CN217540379 U CN 217540379U
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pipe
liquid
tank body
slug
flow
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文晓龙
冯森森
邹建东
何义明
谢腾腾
李吉萍
旬娇
王丽娟
李轩昂
武艳波
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Shanghai Lanbin Petrochemical Equipment Co Ltd
Lanpec Technologies Ltd
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Shanghai Lanbin Petrochemical Equipment Co Ltd
Lanpec Technologies Ltd
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Abstract

一种段塞流捕集器,包括罐体及罐体上设置的气相出口、液相出口,罐体内安装的液体稳折流组件及气体捕雾器,该段塞流捕集器为卧式结构,即罐体横向放置;所述罐体的一侧封头上贯通安装段塞液入口,而罐体内和段塞液入口同一中心线上贯通安装消能管,该消能管的末端出口延伸至罐体另一侧封头的内壁处;所述消能管由起始部的一级扩管、中后部的二级扩管和尾端部的末端半管管道依次首尾可拆卸连接而成;一级扩管扩大至段塞液入口直径的1.25倍。本实用新型结构简单,气液分离空间充分,具有内部气液流场稳定,能够有效促进气液分离和段塞流捕集,解决了混输管线段塞流对下游设施的影响,保证了生产运行的平稳和安全。

Figure 202220865214

A slug flow catcher, comprising a tank body and a gas phase outlet and a liquid phase outlet arranged on the tank body, a liquid steady baffle component and a gas mist catcher installed in the tank body, the slug flow catcher is a horizontal type Structure, that is, the tank body is placed horizontally; the slug liquid inlet is installed on one side of the tank body, and the energy dissipation pipe is installed through the same center line of the tank body and the slug liquid inlet, and the end outlet of the energy dissipation pipe extends to At the inner wall of the head on the other side of the tank body; the energy dissipation pipe is formed by the first-stage expansion pipe at the beginning, the second-level expansion pipe at the middle and rear part, and the end half-pipe pipe at the tail end part in turn detachably connected head to tail; The first-stage expansion pipe is expanded to 1.25 times the diameter of the slug fluid inlet. The utility model has simple structure, sufficient space for gas-liquid separation, stable internal gas-liquid flow field, can effectively promote gas-liquid separation and slug flow capture, solve the influence of slug flow of mixed pipelines on downstream facilities, and ensure production Smooth and safe operation.

Figure 202220865214

Description

一种段塞流捕集器A slug flow catcher

技术领域technical field

本实用新型涉及一种油气混输管道段塞流的处理设备,适用于油气田地面集输中段塞流的捕集和消除。The utility model relates to a processing device for slug flow of an oil and gas mixed transportation pipeline, which is suitable for capturing and eliminating the slug flow in the middle of the ground gathering and transportation of oil and gas fields.

背景技术Background technique

随着海洋、陆地油气田以及大型凝析气田的开发,多相流混输技术得到不断的发展。在多相流混输过程中,长距离输送和管线转弯剪切,通常会产生段塞流;在油气田的开发过程中,由于油井操作和维护的原因,也会导致段塞流的产生。严重的段塞流会对管道末端的油气分离设备及后续工艺设施造成水力冲击、液位波动和阻塞等一系列问题,使下游的工艺设施很难正常操作。With the development of marine, onshore oil and gas fields and large condensate gas fields, multiphase flow mixing technology has been continuously developed. In the process of multiphase flow mixing, long-distance transportation and pipeline turning shear usually produce slug flow; in the development process of oil and gas fields, slug flow will also occur due to the operation and maintenance of oil wells. Serious slug flow will cause a series of problems such as hydraulic shock, liquid level fluctuation and blockage at the oil and gas separation equipment at the end of the pipeline and subsequent process facilities, making it difficult for the downstream process facilities to operate normally.

中国专利201710543940 .9公开了一种指状段塞流耗散分离装置,该装置通过设置分流管和指状支管,不断降低流体的速度和动量,同时耗散段塞的能量,最终将分离后的气液两相分别通过集气、集液汇管送至下游设施。该装置的占地较大,且缺乏有效处理段塞流的结构组件。Chinese patent 201710543940.9 discloses a finger-shaped slug flow dissipating and separating device. The device continuously reduces the velocity and momentum of the fluid by setting a shunt pipe and a finger-shaped branch pipe, and at the same time dissipates the energy of the slug, and finally separates the The gas-liquid two phases are sent to the downstream facilities through the gas-collecting and liquid-collecting manifolds respectively. The device has a large footprint and lacks structural components to effectively handle slug flow.

中国专利201620777487 .9公开了一种旋流段塞流捕集器,该设备设计切向进料,在立式结构内安装旋流筒,在上部空间安装具有径向通道的TP组件。该设备内部气液分离空间有限,处理能力和最终的气液分离效果受到限制。Chinese Patent No. 201620777487.9 discloses a slug flow catcher with swirling flow, the device is designed to feed tangentially, a swirl cylinder is installed in a vertical structure, and a TP assembly with radial channels is installed in the upper space. The gas-liquid separation space inside the equipment is limited, and the processing capacity and the final gas-liquid separation effect are limited.

中国专利ZL.201810786014.9是根据段塞流机理和特点开发的一种段塞流捕集器,段塞流捕集器的作用主要是吸能和捕集液塞。但段塞流捕集器里面的螺旋分配器存在溢流严重且气液聚结内件存在液流分布不均的问题。Chinese patent ZL.201810786014.9 is a slug flow catcher developed according to the mechanism and characteristics of slug flow. The function of the slug flow catcher is mainly to absorb energy and trap liquid plugs. However, the screw distributor in the slug flow trap has serious overflow and the gas-liquid coalescing internals have the problems of uneven liquid flow distribution.

实用新型内容Utility model content

本实用新型提供一种段塞流捕集器,具有内部气液流场稳定,能够有效促进气液分离和段塞流捕集,解决了混输管线段塞流对下游设施的影响,保证了生产运行的平稳和安全。The utility model provides a slug flow catcher, which has a stable internal gas-liquid flow field, can effectively promote gas-liquid separation and slug flow capture, solves the influence of slug flow of mixed pipelines on downstream facilities, and ensures Production runs smoothly and safely.

为了实现上述目的,本实用新型采用的技术方案是:In order to achieve the above purpose, the technical scheme adopted by the present utility model is:

一种段塞流捕集器,包括罐体及罐体上设置的气相出口、液相出口,罐体内安装的液体稳折流组件及气体捕雾器,该段塞流捕集器为卧式结构,即罐体横向放置;所述罐体的一侧封头上贯通安装段塞液入口,而罐体内和段塞液入口同一中心线上贯通安装消能管,该消能管的末端出口延伸至罐体另一侧封头的内壁处;所述消能管由起始部的一级扩管、中后部的二级扩管和尾端部的末端半管管道依次首尾可拆卸连接而成;一级扩管扩大至段塞液入口直径的1.25倍,且一级扩管的管道长度是罐体长度的2/3;所述二级扩管10的管道长度是罐体长度的1/3。A slug flow catcher, comprising a tank body and a gas phase outlet and a liquid phase outlet arranged on the tank body, a liquid stable baffle assembly and a gas mist catcher installed in the tank body, the slug flow catcher is a horizontal type Structure, that is, the tank body is placed horizontally; the slug liquid inlet is installed on one side of the tank body, and the energy dissipation pipe is installed through the same center line of the tank body and the slug liquid inlet, and the end outlet of the energy dissipation pipe extends to At the inner wall of the head on the other side of the tank body; the energy dissipation pipe is formed by the first-level expansion pipe at the beginning, the second-level expansion pipe at the middle and rear, and the end half-pipe at the tail end. The first-stage expansion pipe is expanded to 1.25 times the diameter of the slug liquid inlet, and the pipeline length of the first-stage expansion pipe is 2/3 of the length of the tank body; the pipeline length of the second-stage expansion pipe 10 is 1/3 of the tank body length. .

所述一级扩管是由一级偏心大小头和一级扩管管道组成的一级偏心扩管;所述一级扩管管道中安装有曲面消能器,第一曲面消能器安装于一级扩管管道的1/3处;第二曲面消能器位于一级扩管管道的4/5处;所述曲面消能器为螺旋形曲面板片,螺旋长度为0.5~1螺距。The first-stage expansion pipe is a first-level eccentric expansion pipe composed of a first-level eccentric head and a first-level expansion pipeline; a curved energy dissipator is installed in the first-level expansion pipeline, and the first curved energy dissipator is installed in the first-level eccentric expansion pipe. The second curved energy dissipator is located at 1/3 of the first-stage expanding pipeline; the second curved energy dissipator is located at 4/5 of the first-stage expanding pipeline;

所述第一曲面消能器的曲面为顺时针曲面,第二个曲面消能器的曲面为逆时针曲面。The curved surface of the first curved energy dissipator is a clockwise curved surface, and the curved surface of the second curved energy dissipator is a counterclockwise curved surface.

所述二级扩管是由二级偏心大小头和二级扩管管道组成的二级偏心扩管;所述二级扩管管道直径是一级扩管管道的1.25倍;在二级扩管管道的管道上安装有稳流消能器,该稳流消能器位于二级扩管管道的1/3处。The secondary expansion pipe is a secondary eccentric expansion pipe composed of a secondary eccentric head and a secondary expansion pipe; the diameter of the secondary expansion pipe is 1.25 times that of the primary expansion pipe; A steady flow energy dissipator is installed on the pipeline of the pipeline, and the steady flow energy dissipator is located at 1/3 of the secondary expansion pipeline.

所述稳流消能器由若干叶片绕二级扩管管道的中心点旋转组成,且叶片以二级扩管管道的轴线成30~45°排布。The steady flow energy dissipator is composed of several blades that rotate around the center point of the secondary expansion pipe, and the blades are arranged at 30-45° with the axis of the secondary expansion pipe.

所述消能管的末端半管管道在二级扩管管道的2/3处开始直至消能管的末端;所述末端半管管道终止于与封头内壁距离100mm处。The end half-pipe of the energy-dissipating pipe starts at 2/3 of the secondary expansion pipe until the end of the energy-dissipating pipe; the end half-pipe ends at a distance of 100 mm from the inner wall of the head.

所述消能管的末端半管管道的管道流体出口正对的罐体封头壁上设有防冲挡板。An anti-shock baffle is arranged on the wall of the tank body head facing the pipe fluid outlet of the half pipe at the end of the energy dissipation pipe.

所述末端半管管道开始处的前端消能管上设有液体导流板,该液体导流板上沿与消能管水平中心线平齐,液体导流板下沿与罐体内的低液面平齐,液体导流板两侧与罐体内壁固接。The front end energy dissipating pipe at the beginning of the half-pipe pipeline is provided with a liquid deflector, the upper edge of the liquid deflector is flush with the horizontal centerline of the energy dissipating pipe, and the lower edge of the liquid deflector is flush with the low liquid level in the tank. The two sides of the liquid deflector are fixedly connected with the inner wall of the tank.

液体稳折流组件包括沿流体流动方向依次设置的液体稳流板和液体折流板;所述液体稳流板的上沿在竖直方向上与消能管中心线平齐,而液体稳流板的底沿与罐体间形成液体通道;所述液体折流板的上沿在竖直方向上位于液体稳流板的上沿和底沿之间,所述液体折流板的底部与罐体底部连接。The liquid steady baffle assembly includes a liquid steady flow plate and a liquid baffle plate arranged in sequence along the fluid flow direction; the upper edge of the liquid steady flow plate is flush with the center line of the energy dissipation pipe in the vertical direction, and the liquid steady flow plate is A liquid channel is formed between the bottom edge of the liquid baffle and the tank body; the upper edge of the liquid baffle is located between the upper edge and the bottom edge of the liquid baffle in the vertical direction, and the bottom of the liquid baffle is connected to the tank body. Bottom connection.

所述气体捕雾器设置于设备内的气相空间中且靠近气相出口处;气相出口和液相出口分别安装于靠近段塞液入口端的罐体的上、下部;气相出口处安装有气体导流板,液相出口处安装有液体破涡器。The gas mist catcher is arranged in the gas phase space in the equipment and is close to the gas phase outlet; the gas phase outlet and the liquid phase outlet are respectively installed on the upper and lower parts of the tank body close to the inlet end of the slug liquid; the gas phase outlet is installed with a gas guide A liquid vortex breaker is installed at the liquid phase outlet.

本实用新型中,段塞液经过段塞液入口进入段塞流捕集器内的消能管,在消能管的一级扩管管道中减缓流速,使用偏心扩管,管道内的气相从液相中溢出,管道内的段塞液不改变流动方向逐渐稳流且趋于连续相。段塞液经过消能管内的第一个曲面消能器,进行消能,并使流体的流动状态由轴向流动变为顺时针螺旋流;流体经过第二个曲面消能器,流体由原来的顺时针轴流消能变为逆时针轴流消能。流体方向改变是消能过程。经消能后的流体进行进入消能管内的二级偏心扩管管道内继续减缓流速,再次使用偏心扩管,使管道内的气相继续从液相中溢出,管道内的段塞液不改变流动方向逐渐稳流且趋于连续相。经过稳流消能器进行微旋消能,进入末端半管管道进行气液初分离。分离的气体溢出进入气相空间,经过气体捕雾器从气相出口排出。气液分离得到的液体经液体导流至罐底,经过液体稳流板与罐体间的空间,再经过液体折流板完成折流,液体的液面得到稳定后,最终从液相出口排出。In the utility model, the slug liquid enters the energy dissipating pipe in the slug flow catcher through the slug liquid inlet, and the flow velocity is slowed down in the primary expansion pipe of the energy dissipation pipe. The slug liquid in the pipeline does not change the flow direction and gradually flows steadily and tends to the continuous phase. The slug liquid passes through the first curved energy dissipator in the energy dissipating tube to dissipate energy, and the fluid flow state changes from axial flow to clockwise spiral flow; the fluid passes through the second curved energy dissipator, and the fluid changes from the original The clockwise axial flow energy dissipation of , becomes the counterclockwise axial flow energy dissipation. The change in fluid direction is an energy dissipation process. The fluid after energy dissipation enters the secondary eccentric expansion pipe in the energy dissipation pipe and continues to slow down the flow rate, and the eccentric expansion is used again, so that the gas phase in the pipe continues to overflow from the liquid phase, and the slug liquid in the pipe does not change the flow. The direction is gradually steady flow and tends to the continuous phase. It goes through the steady flow energy dissipator for micro-spin energy dissipation, and enters the end half-pipe for initial gas-liquid separation. The separated gas overflows into the gas phase space, and is discharged from the gas phase outlet through the gas mist catcher. The liquid obtained from the gas-liquid separation is guided by the liquid to the bottom of the tank, passes through the space between the liquid steady flow plate and the tank body, and then passes through the liquid baffle plate to complete the baffle. After the liquid level of the liquid is stabilized, it is finally discharged from the liquid phase outlet. .

本实用新型结构简单,气液分离空间充分,具有内部气液流场稳定,能够有效促进气液分离和段塞流捕集,解决了混输管线段塞流对下游设施的影响,保证了生产运行的平稳和安全。The utility model has simple structure, sufficient space for gas-liquid separation, stable internal gas-liquid flow field, can effectively promote gas-liquid separation and slug flow capture, solve the influence of slug flow of mixed pipelines on downstream facilities, and ensure production Smooth and safe operation.

附图说明Description of drawings

图1为本实用新型结构示意图;Fig. 1 is the structural representation of the utility model;

图2为图1的俯视示意图;Fig. 2 is the top view schematic diagram of Fig. 1;

图3为本实用新型顺时针曲面消能器的结构示意图;3 is a schematic structural diagram of a clockwise curved energy dissipator of the present invention;

图4为本实用新型逆时针曲面消能器的结构示意图;4 is a schematic structural diagram of a counterclockwise curved energy dissipator of the present invention;

图5为本实用新型的稳流消能器的立体结构示意图;Fig. 5 is the three-dimensional structure schematic diagram of the steady flow energy dissipator of the present invention;

图6为图5的主视结构示意图;Fig. 6 is the front view structure schematic diagram of Fig. 5;

图7为本实用新型偏心大小头的结构示意图;Fig. 7 is the structural representation of the eccentric head of the utility model;

图中:1—段塞液入口;2—气相出口;3—液相出口;4—除雾器;5—一级扩管 5-1一级偏心大小头;5-2—一级扩管管道 6—第一曲面消能器;7—第二曲面消能器;8—消能管;9—罐体;10—二级扩管;10-1-二级偏心大小头;10-2—二级扩管管道;11—稳流消能器;12—末端半管管道;13—液体导流板;14—防冲挡板;15—液体稳流板;16—液体折流板;17—气体导流板 18—液体破涡器。In the figure: 1—the slug liquid inlet; 2—the gas phase outlet; 3—the liquid phase outlet; 4—the mist eliminator; Pipeline 6—the first curved energy dissipator; 7—the second curved energy dissipator; 8—energy dissipating pipe; 9—tank body; 10—secondary expansion pipe; 10-1—secondary eccentric size head; Secondary expansion pipe; 11—steady flow energy dissipator; 12—end half pipe; 13—liquid deflector; 14—anti-shock baffle; 15—liquid steady flow plate; 16—liquid baffle; 17 - Gas deflector 18 - Liquid vortex breaker.

具体实施方式Detailed ways

下面将更详细地描述本实用新型的优选实施方式。虽然以下描述了本实用新型的优选实施方式,然而应该理解,可以以各种形式实现本实用新型而不应被这里阐述的实施方式所限制。Preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein.

如图1、图2所示,一种段塞流捕集器,包括罐9及罐体上设置的气相出口2、液相出口3,罐体内安装的液体稳折流组件及气体捕雾器,该段塞流捕集器为卧式结构,即罐体9横向放置;所述罐体9的一侧封头上贯通安装段塞液入口1,而罐体9内和段塞液入口1同一水平线上贯通安装消能管8,该消能管8(消能管8用安装在罐体内壁上的管支架支撑)的末端出口延伸至罐体9另一侧封头的内壁处;所述消能管8由起始部的一级扩管5、中后部的二级扩管10和尾端部的末端半管管道12依次首尾用螺栓连接而成;一级扩管5扩大至段塞液入口直径的1.25倍,且一级扩管5的管道长度是罐体长度的2/3;所述二级扩管10的管道长度是罐体长度的1/3。As shown in Figure 1 and Figure 2, a slug flow catcher includes a gas phase outlet 2 and a liquid phase outlet 3 provided on a tank 9 and the tank body, a liquid stable baffle flow assembly and a gas mist catcher installed in the tank body , the slug flow catcher has a horizontal structure, that is, the tank body 9 is placed horizontally; The energy dissipation pipe 8 is installed through the same horizontal line, and the end outlet of the energy dissipation pipe 8 (the energy dissipation pipe 8 is supported by a pipe bracket installed on the inner wall of the tank) extends to the inner wall of the head on the other side of the tank body 9; the energy dissipation pipe 8 is formed by the first-stage expansion pipe 5 at the beginning, the second-level expansion pipe 10 at the middle and rear part, and the end half-pipe pipe 12 at the tail end in turn connected by bolts; the first-level expansion pipe 5 is expanded to the slug liquid inlet 1.25 times the diameter, and the pipe length of the primary expanded pipe 5 is 2/3 of the length of the tank body; the pipe length of the secondary expanded pipe 10 is 1/3 of the length of the tank body.

上述中,所述段塞液入口1的管嘴在径向的位置应保证所述管嘴最底部与设备内的高操作液面平齐。In the above, the radial position of the nozzle of the slug liquid inlet 1 should ensure that the bottom of the nozzle is flush with the high operating liquid level in the device.

如图7所示,所述一级扩管5是由一级偏心大小头5-1和一级扩管管道5-2组成的一级偏心扩管;一级扩管管道5-2中安装有曲面消能器,第一曲面消能器安装于一级扩管管道的1/3处;第二曲面消能器位于一级扩管管道的4/5处;所述曲面消能器为螺旋形曲面板片,螺旋长度为0.5~1螺距。As shown in FIG. 7 , the first-level pipe expansion 5 is a first-level eccentric pipe expansion composed of a first-level eccentric head 5-1 and a first-level pipe expansion pipe 5-2; the first-level pipe expansion pipe 5-2 is installed in the first-level pipe expansion pipe There are curved energy dissipators, the first curved energy dissipator is installed at 1/3 of the first-stage expanding pipeline; the second curved energy dissipator is located at 4/5 of the first-stage expanding pipeline; the curved energy dissipator is Spiral curved panel, the helix length is 0.5~1 pitch.

使用一级偏心扩管,有益于管道内液体中的气相溢出,使管道内的段塞液不改变流动方向逐渐稳流且趋于连续相。The use of one-stage eccentric expansion is beneficial to the overflow of the gas phase in the liquid in the pipeline, so that the slug liquid in the pipeline does not change the flow direction and gradually flows steadily and tends to the continuous phase.

如图3、图4所示,所述第一曲面消能器6的曲面为顺时针曲面,第二曲面消能器7的曲面为逆时针曲面。As shown in FIGS. 3 and 4 , the curved surface of the first curved energy dissipator 6 is a clockwise curved surface, and the curved surface of the second curved energy dissipator 7 is a counterclockwise curved surface.

段塞液经过消能管内的第一曲面消能器6,进行消能,并使流体的流动状态由轴向流动变为顺时针螺旋流;流体经过第二曲面消能器7,流体由原来的顺时针轴流消能变为逆时针轴流消能。流体方向改变是消能过程。The slug liquid passes through the first curved energy dissipator 6 in the energy dissipating pipe to dissipate energy, and the flow state of the fluid changes from axial flow to clockwise spiral flow; the fluid passes through the second curved energy dissipator 7, and the fluid changes from the original The clockwise axial flow energy dissipation of , becomes the counterclockwise axial flow energy dissipation. The change in fluid direction is an energy dissipation process.

如图7所示,所述二级扩管10是由二级偏心大小头10-1和二级扩管管道10-2组成的二级偏心扩管。二级扩管管道10-2直径是一级扩管管道5-2的1.25倍;在二级扩管管道10-2的管道上安装有稳流消能器,该稳流消能器位于二级扩管管道10-2的1/3处。As shown in FIG. 7 , the secondary expansion pipe 10 is a secondary eccentric expansion pipe composed of a secondary eccentric large and small head 10-1 and a secondary expansion pipe 10-2. The diameter of the secondary expansion pipe 10-2 is 1.25 times that of the primary expansion pipe 5-2; a steady flow energy dissipater is installed on the pipeline of the secondary expansion pipe 10-2, and the steady flow energy dissipator is located in the second expansion pipe. 1/3 of the stage expansion pipe 10-2.

如图5、图6所示,所述稳流消能器由若干叶片绕二级扩管管道10-2的中心点旋转组成,且叶片以二级扩管管道10-2的轴线呈30~45°排布,这样可以对流体进行微消能,不至于增大压降,同时旋转叶片有分流稳流的作用。As shown in Fig. 5 and Fig. 6 , the steady flow energy dissipator is composed of several blades rotating around the center point of the secondary expansion pipe 10-2, and the blades are arranged at 30~30°C along the axis of the secondary expansion pipe 10-2. 45° arrangement, so that the fluid can be micro-dissipated, so as not to increase the pressure drop, and the rotating blade has the function of shunting and stabilizing the flow.

经一级偏心扩管及曲面效能器消能后的流体进入消能管内的二级偏心扩管管道内继续减缓流速,使用二级偏心扩管,使管道内的气相继续从液相中溢出,管道内的段塞液不改变流动方向逐渐稳流且趋于连续相。经过稳流消能器进行微旋消能。The fluid after the first-stage eccentric expansion and the energy dissipation of the curved-surface effector enters the second-stage eccentric expansion pipeline in the energy-dissipating tube and continues to slow down the flow velocity. The second-stage eccentric expansion is used to make the gas phase in the pipeline continue to overflow from the liquid phase. The slug liquid in the pipeline does not change the flow direction and gradually flows steadily and tends to the continuous phase. After the steady flow energy dissipator, the micro-rotation energy dissipation is carried out.

所述消能管8的末端半管管道12在二级扩管10-2管道的2/3处开始直至消能管8的末端。所述末端半管管道终止于与罐体封头距离约100mm处。The end half pipe 12 of the energy dissipation pipe 8 starts at 2/3 of the pipe of the secondary expansion pipe 10 - 2 until the end of the energy dissipation pipe 8 . The end half pipe ends at a distance of about 100 mm from the tank head.

段塞液进入末端半管管道进行气液初分离。分离的气体溢出进入气相空间,经过气体捕雾器从气相出口排出。气液分离得到的液体经液体导流至罐底,经过液体稳流板与罐体间的空间,再经过液体折流板完成折流,液体的液面得到稳定后,最终从液相出口排出。The slug liquid enters the end half pipe for initial gas-liquid separation. The separated gas overflows into the gas phase space, and is discharged from the gas phase outlet through the gas mist catcher. The liquid obtained from the gas-liquid separation is guided by the liquid to the bottom of the tank, passes through the space between the liquid steady flow plate and the tank body, and then passes through the liquid baffle plate to complete the baffle. After the liquid level of the liquid is stabilized, it is finally discharged from the liquid phase outlet. .

所述消能管的末端半管管道12的管道流体出口正对的罐体封头壁上设有防冲挡板14。防冲挡板14一方面减小流体携带动量,二来防止气液冲蚀壳体封头。An anti-shock baffle 14 is provided on the wall of the tank head facing the pipe fluid outlet of the end half pipe 12 of the energy dissipation pipe. On the one hand, the anti-collision baffle 14 reduces the momentum carried by the fluid, and on the other hand, prevents the gas and liquid from eroding the casing head.

所述末端半管管道12开始处的前端消能管上设有液体导流板13,该液体导流板13上沿与消能管水平中心线平齐,液体导流板13下沿与罐体内的低液面平齐,液体导流板13两侧与罐体9内壁固接。液体导流板13导流液体的同时可以起到支撑消能管的作用。The front end energy dissipating pipe at the beginning of the half-pipe pipe 12 is provided with a liquid deflector 13, the upper edge of the liquid deflector 13 is flush with the horizontal centerline of the energy dissipating pipe, and the lower edge of the liquid deflector 13 is aligned with the inside of the tank. The low liquid level is flush, and both sides of the liquid deflector 13 are fixedly connected to the inner wall of the tank body 9 . The liquid guide plate 13 can play the role of supporting the energy dissipation pipe while guiding the liquid.

液体稳折流组件包括沿流体流动方向依次设置的液体稳流板15和液体折流板16;所述液体稳流板15的上沿在竖直方向上与消能管中心线平齐,而液体稳流板15的底沿与罐体间形成液体通道;所述液体折流板16的上沿在竖直方向上位于液体稳流板15的上沿和底沿之间,所述液体折流板16的底部与罐体底部连接。液体稳折流组件减小液体携带动能,液体翻过折流板后稳定流动。The liquid baffle assembly includes a liquid baffle 15 and a liquid baffle 16 arranged in sequence along the fluid flow direction; the upper edge of the liquid baffle 15 is vertically flush with the centerline of the energy dissipation pipe, and the liquid baffle A liquid channel is formed between the bottom edge of the baffle plate 15 and the tank body; the upper edge of the liquid baffle plate 16 is located between the upper edge and the bottom edge of the liquid baffle plate 15 in the vertical direction, and the liquid baffle plate 16 The bottom of the plate 16 is connected to the bottom of the tank. The liquid stable baffle assembly reduces the kinetic energy carried by the liquid, and the liquid flows stably after turning over the baffle.

所述气体捕雾器4设置于设备内的气相空间中且靠近气相出口2处;气相出口2和液相出口3分别安装于靠近段塞液入口端的罐体的上、下部;气相出口2处安装有气体导流板17,液相出口3处安装有液体破涡器18,防止气液出口形成漩涡。所述气体捕雾器4和液体破涡器18均采用子女有常规使用的产品。The gas mist trap 4 is arranged in the gas phase space in the equipment and is close to the gas phase outlet 2; A gas guide plate 17 is installed, and a liquid vortex breaker 18 is installed at the liquid phase outlet 3 to prevent the gas-liquid outlet from forming a vortex. The gas mist catcher 4 and the liquid vortex breaker 18 are products that are commonly used by children.

本实用新型中,所述“下游”是针对物料流动方向而言的部件的相对设置关系,该术语的含义为本领域技术人员了解。In the present invention, the "downstream" refers to the relative arrangement of components with respect to the material flow direction, and the meaning of this term is understood by those skilled in the art.

本实用新型的段塞流捕集器,段塞液经过段塞液入口进入段塞流捕集器内的消能管,在消能管的一级扩管管道中减缓流速,使用偏心扩管,管道内的气相从液相中溢出,管道内的段塞液不改变流动方向逐渐稳流且趋于连续相。段塞液经过消能管内的第一个曲面消能器,进行消能,并使流体的流动状态由轴向流动变为顺时针螺旋流;流体经过第二个曲面消能器,流体由原来的顺时针轴流消能变为逆时针轴流消能。流体方向改变是消能过程。经消能后的流体进行进入消能管内的二级扩管管道内继续减缓流速,使用偏心扩管,管道内的气相继续从液相中溢出,管道内的段塞液不改变流动方向逐渐稳流且趋于连续相。经过稳流消能器进行微旋消能,进入末端半管管道进行气液初分离。分离的气体溢出进入气相空间,经过气体捕雾器从气相出口排出。气液分离得到的液体经液体导流至罐底,经过液体稳流板与罐体间的空间,再经过液体折流板完成折流,液体的液面得到稳定后,最终从液相出口排出。In the slug flow catcher of the utility model, the slug liquid enters the energy dissipation pipe in the slug flow catcher through the slug liquid inlet, and the flow velocity is slowed down in the first-stage expansion pipeline of the energy dissipation pipe. The gas phase overflows from the liquid phase, and the slug liquid in the pipeline does not change the flow direction and gradually flows steadily and tends to the continuous phase. The slug liquid passes through the first curved energy dissipator in the energy dissipating pipe to dissipate energy, and the fluid flow state changes from axial flow to clockwise spiral flow; the fluid passes through the second curved energy dissipator, and the fluid changes from the original The clockwise axial flow energy dissipation of , becomes the counterclockwise axial flow energy dissipation. The change in fluid direction is an energy dissipation process. After energy dissipation, the fluid enters the secondary expansion pipe in the energy dissipation pipe and continues to slow down the flow velocity. Using eccentric expansion, the gas phase in the pipe continues to overflow from the liquid phase, and the slug liquid in the pipe does not change the flow direction and gradually stabilizes. flow and tend to the continuous phase. It goes through the steady flow energy dissipator for micro-spin energy dissipation, and enters the end half-pipe for initial gas-liquid separation. The separated gas overflows into the gas phase space, and is discharged from the gas phase outlet through the gas mist catcher. The liquid obtained from the gas-liquid separation is guided by the liquid to the bottom of the tank, passes through the space between the liquid steady flow plate and the tank body, and then passes through the liquid baffle plate to complete the baffle. After the liquid level of the liquid is stabilized, it is finally discharged from the liquid phase outlet. .

本实用新型结构简单,气液分离空间充分,内部气液流场稳定,能够有效促进气液分离和段塞流捕集,解决了混输管线段塞流对下游设施的影响,保证了生产运行的平稳和安全。The utility model has simple structure, sufficient space for gas-liquid separation, stable internal gas-liquid flow field, can effectively promote gas-liquid separation and slug flow capture, solve the influence of slug flow of mixed pipelines on downstream facilities, and ensure production operation. of stability and safety.

Claims (10)

1. A slug flow catcher comprises a tank body, a gas phase outlet and a liquid phase outlet which are arranged on the tank body, and a liquid stable flow baffle component and a gas mist catcher which are arranged in the tank body, and is characterized in that the slug flow catcher is of a horizontal structure, namely the tank body (9) is transversely arranged; a slug liquid inlet (1) is arranged on a seal head at one side of the tank body (9) in a penetrating way, an energy dissipation pipe (8) is arranged in the tank body (9) in a penetrating way on the same central line with the slug liquid inlet (1), and an outlet at the tail end of the energy dissipation pipe (8) extends to the inner wall of the seal head at the other side of the tank body (9); the energy dissipation pipe (8) is formed by sequentially detachably connecting a primary expanded pipe (5) at the starting part, a secondary expanded pipe (10) at the middle and rear part and a tail end half pipe pipeline (12) at the tail end part end to end; the primary pipe expansion is expanded to 1.25 times of the diameter of the slug liquid inlet, and the length of the pipeline of the primary pipe expansion (5) is 2/3 of the length of the tank body; the pipeline length of the secondary expanding pipe (10) is 1/3 of the length of the tank body.
2. The slug flow catcher according to claim 1, characterized in that said primary expanded pipe (5) is a primary eccentric expanded pipe consisting of a primary eccentric reducer (5-1) and a primary expanded pipe (5-2); the first-stage pipe expanding pipeline (5-2) is internally provided with a curved surface energy dissipater, and the first curved surface energy dissipater (6) is arranged at 1/3 part of the first-stage pipe expanding pipeline; the second curved surface energy dissipater (7) is positioned at 4/5 of the first-stage pipe expanding pipeline; the curved surface energy dissipater is a spiral curved surface plate, and the spiral length is 0.5 to 1 screw pitch.
3. A slug flow catcher according to claim 2, wherein the curved surface of said first curved surface dissipator is clockwise curved and the curved surface of said second curved surface dissipator is counter-clockwise curved.
4. The slug flow catcher as claimed in claim 1, characterized in that said secondary expansion pipe (10) is a secondary eccentric expansion pipe consisting of a secondary eccentric reducer (10-1) and a secondary expansion pipe (10-2); the diameter of the secondary pipe expanding pipeline (10-2) is 1.25 times that of the primary pipe expanding pipeline (5-2); and a steady flow energy dissipater is arranged on the pipeline of the secondary pipe expanding pipeline (10-2) and is positioned at 1/3 of the secondary pipe expanding pipeline (10-2).
5. The slug flow catcher according to claim 4, characterized in that the steady flow energy dissipater is composed of a plurality of blades rotating around the center point of the secondary expanded pipe (10-2), and the blades are arranged at an angle of 30-45 ° with the axis of the secondary expanded pipe (10-2).
6. A slug flow trap according to claim 1 characterized in that the terminal half pipe (12) of the energy dissipating pipe (8) starts at 2/3 of the secondary pipe expanding pipe (10-2) up to the terminal end of the energy dissipating pipe (8); the tail end half-pipe pipeline is terminated at the position which is 100mm away from the inner wall of the seal head.
7. The slug flow catcher as claimed in claim 6, characterized in that the tank closure wall facing the pipe fluid outlet of the terminal half pipe (12) of the energy dissipating pipe is provided with an impact damper (14).
8. A slug flow catcher according to any of claims 1-7, characterized in that the front energy dissipating pipe where the end half pipe (12) starts is provided with a liquid guiding plate (13), the upper edge of the liquid guiding plate (13) is level with the horizontal center line of the energy dissipating pipe (8), the lower edge of the liquid guiding plate (13) is level with the low liquid level in the tank, and both sides of the liquid guiding plate (13) are fixed to the inner wall of the tank (9).
9. The slug flow trap according to claim 8 wherein the liquid stabilizing baffle assembly comprises a liquid stabilizing plate (15) and a liquid baffle plate (16) arranged in series along the direction of fluid flow; the upper edge of the liquid flow stabilizing plate (15) is level with the central line of the energy dissipation pipe in the vertical direction, and a liquid channel is formed between the bottom edge of the liquid flow stabilizing plate (15) and the tank body; the upper edge of the liquid baffle plate (16) is positioned between the upper edge and the bottom edge of the liquid flow stabilizing plate (15) in the vertical direction, and the bottom of the liquid baffle plate (16) is connected with the bottom of the tank body.
10. The slug flow trap according to claim 9 wherein the gas mist trap (4) is arranged in the gas phase space inside the device near the gas phase outlet (2); the gas phase outlet (2) and the liquid phase outlet (3) are respectively arranged at the upper part and the lower part of the tank body close to the slug liquid inlet end; a gas guide plate (17) is arranged at the gas phase outlet (2), and a liquid vortex breaker (18) is arranged at the liquid phase outlet (3).
CN202220865214.5U 2022-04-15 2022-04-15 Slug flow catcher Withdrawn - After Issue CN217540379U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114777019A (en) * 2022-04-15 2022-07-22 上海蓝滨石化设备有限责任公司 A slug flow catcher

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114777019A (en) * 2022-04-15 2022-07-22 上海蓝滨石化设备有限责任公司 A slug flow catcher
CN114777019B (en) * 2022-04-15 2025-06-06 上海蓝滨石化设备有限责任公司 A slug flow catcher

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