CN205965280U

CN205965280U - Pipeline formula crude separation ware

Info

Publication number: CN205965280U
Application number: CN201620861751.7U
Authority: CN
Inventors: 王以斌; 王文昊; 李战杰; 黄光辉; 何钦全; 杜富国; 常征
Original assignee: Sinopec Luoyang Petrochemical Engineering Corp; Sinopec Engineering Group Co Ltd
Current assignee: Sinopec Engineering Group Co Ltd; Sinopec Luoyang Guangzhou Engineering Co Ltd
Priority date: 2016-08-10
Filing date: 2016-08-10
Publication date: 2017-02-22
Anticipated expiration: 2026-08-10

Abstract

The utility model discloses a pipeline formula crude separation ware is mainly had a down dip by the hole enlargement pipe that communicates in proper order, horizontal nozzle stub, gradual elbow, spiral and manages to become with the gas -liquid separation nest of tubes. The utility model discloses do not contain and easily decrease the internals, wholly improved pipeline formula crude separation ware's separation effect.

Description

A kind of duct type coarse separator

Technical field

This utility model belongs to multiphase flow and oil vapor treatment technical field, relates in particular to a kind of duct type crude separation Device.

Background technology

Slug flow is located at the zone line of multiphase flow flow pattern, and various other multiphase flow pattern region has and has a common boundary, It is a kind of flow pattern most common during oil and gas multiphase flow, that harm is maximum.Slug flow can be made to the separation in downstream and treatment facility Poling is detrimental effect.Slug flow that is not treated or dealing with improperly enters downstream separator and causes separator interior strong Flow field and distributed mutually fluctuation, cause separator occur separating lost efficacy, gas-liquid is being got lines crossed etc. and to be deteriorated the generation of operating mode.

The expanding gas-liquid flow velocity causing be greatly reduced and have a down dip, the gravity of geometry itself and the centrifugation such as spiral The field of force is conducive to slug to flow to the conversion of stratified flow, improves gas-liquid separation effect, extension downstream Oil-gas Separation to a great extent The scope of application of device, this thinking is commonly applied to column cyclone separator entrance rectification and has developed various versions, example Combine expansion as a kind of Chinese patent (2014103767481) column gas-liquid cyclone separator entrance fairing provides one kind Footpath, spiral have a down dip isostructural column gas-liquid cyclone separator entrance crude separation device, and single hose coarse separator gas-liquid two-phase is simultaneously It is not truly realized and is kept completely separate, gas-liquid two-phase flows still in same pipeline；Develop on the basis of single tube coarse separator The manifold formula coarse separator going out mainly forces slug to flow to the conversion of stratified flow, such as Chinese patent using expansion tube with the pipe that has a down dip (2013207992583) the inclined tube-type coarse separator representing in a kind of slug flow cushion separation, gas phase point is being propped up to gas phase The main buoyancy using the gas phase being produced due to gas-liquid two-phase density contrast during pipe, and the gravity of higher liquid phase is made With not being fully used during gas-liquid separation.

Utility model content

In order to solve the technical problem for slug flow low separation efficiency of prior art presence, this utility model provides A kind of duct type coarse separator.

The duct type coarse separator that this utility model provides is mainly by the expansion tube being sequentially communicated, horizontal short tube, gradual curved Head, spiral have a down dip and manage and gas-liquid separating pipe composition.

Described expansion tube is horizontally mounted, and expansion tube, using gradually including design, is installed on horizontal feed pipe, for realizing liquid The smooth transition of plug, reduces the mixing of gas-liquid two-phase and the emulsification pretreatment of profit, not preferably greater than 20 ° of expanding angle, expanding angle Degree value is more suitable for 10 °～20 °.

After described horizontal short tube is located at expansion tube, play the effect of Liquid Flow after stable expansion tube, horizontal short tube Length is 10～15 times of its caliber.

Described gradual elbow has a down dip as the horizontal short tube of connection and spiral the connecting elements of pipe, for ensureing the gentle of junction Excessively, make liquid plug gently enter spiral to have a down dip section, reduce the mixing of gas-liquid two-phase and the emulsification pretreatment of profit, gradual elbow Bending radius should be 3～6 times of its caliber.

Described spiral has a down dip Guan Youyi section little curvature serpentine pipe and one section of deep camber serpentine pipe is connected in sequence, little song Rate serpentine pipe is identical with deep camber spiral bore.

Described spiral has a down dip pipe using two sections of designs latter linked before little curvature serpentine pipe and deep camber serpentine pipe, little song The strong centrifugal force field that rate serpentine pipe produces is conducive to slug to flow to the rapid conversion of stratified flow, the centrifugation that deep camber serpentine pipe produces The field of force is weaker but has longer flow distance under identical spiral number of turns, advantageously forms stable laminar flow；Little song Rate serpentine pipe is identical with deep camber serpentine pipe angle of inclination, and inclination angle value is 15 °～30 °, is conducive to slug in this scope Flow to the conversion of stratified flow and so that the height of duct type coarse separator has larger range of accommodation；Little curvature serpentine pipe with big The spiral number of turns value of curvature serpentine pipe is more suitable during 1/3～1/2 circle, and the restriction according to installing space can suitably be adjusted Whole；Spiral have a down dip pipe internal diameter should ensure that gas-liquid flow velocity be located at multiphase flow pattern in figure stratified flow region.

Described gas-liquid separation pipe is made up of the gas phase arm be arrangeding in parallel from top to bottom, descending liquid passage and liquid phase arm, Descending liquid passage is closed at both ends, the box passage of strip of upper lower open mouth, and gas phase arm and liquid phase arm are by descending liquid channel connection； Liquid phase arm has a down dip near spiral one end closing of pipe, and the other end is uncovered, and gas-liquid separation Guan Yiqi gas phase arm is had a down dip with spiral Pipe connects, and the deep camber serpentine pipe of the pipe that had a down dip with spiral is connected.

Described gas phase arm is identical with the tilt angled down of deep camber serpentine pipe, and bore is identical, liquid phase arm tilt angled down Identical with gas phase arm, liquid phase branch diameter is smaller compared with gas phase arm, that is, be less than gas phase branch diameter；Descending liquid channel cross-section width Prop up the 1/2～2/3 of pipe diameter for liquid phase；Gas phase arm is identical with the length of liquid phase arm, and value is respective bore 20～30 times, the length of descending liquid passage accounts for the 2/3～3/4 of gas-liquid separation length of tube.

In order to more effectively carry out gas-liquid separation, in descending liquid passage, have a down dip one end of pipe of spiral is provided with the gas of arch Phase baffle plate, gas phase baffle plate is located at the liquid phase arm first half, and arcuate blocking piece place diameter of a circle props up bore equal to liquid phase.

The ultimate principle of the present invention be slug come stream first pass around horizontal segment expansion tube reduce gas-liquid two-phase flow velocity with And the intensity of liquid plug；Then slug flows through horizontal short tube and slow bending elbow and enters spiral and has a down dip pipe, and spiral has a down dip the main inclusion of pipe Little curvature serpentine pipe and deep camber serpentine pipe, after spiral has a down dip pipe, slug flow is under the dual function with centrifugal force for the gravity Pressure is converted into stratified flow；Stratified flow after conversion enters gas-liquid separation pipe, and gas phase is stayed gas phase under buoyancy and propped up Pipe, liquid phase enters liquid phase arm through descending liquid passage under gravity, and then gas-liquid two-phase flows to downstream oil vapor treatment respectively and sets Standby.

Advantages of the present invention is：1) do not contain vulnerable internal component, can be with failure-free operation；2) combine single hose rectification Pipe and the feature of manifold formula coarse separator, are improved slug and are flowed to stratified flow conversion effect using expanding, the spiral mode of combining that has a down dip While fruit, flow to gas phase arm in gas-liquid and the liquid phase arm stage makes full use of the action of gravity of liquid phase, overall raising pipeline The separating effect of formula coarse separator.

Brief description

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the schematic top plan view of Fig. 1；

Fig. 3 is that this utility model spiral has a down dip the structural representation of pipe；

Fig. 4 is the schematic side view of Fig. 3；

Fig. 5 is the schematic cross-section of this utility model gas-liquid separation pipe.

In figure：1- horizontal feed pipe, 2- expansion tube, the horizontal short tube of 3-, the gradual elbow of 4-, 5- little curvature serpentine pipe, 6- is big Curvature serpentine pipe, 7- gas-liquid separation pipe, 8- gas phase arm, 9- descending liquid passage, 10- liquid phase arm, 11- gas phase baffle plate.

Specific embodiment

Below in conjunction with the drawings and specific embodiments, this utility model is described further.

Referring to accompanying drawing 1～5, this utility model mainly by horizontal feed pipe 1, expansion tube 2, horizontal short tube 3, gradual elbow 4, Little curvature serpentine pipe 5, deep camber serpentine pipe 6 and gas-liquid separating pipe 7 are sequentially communicated composition, its medium and small curvature serpentine pipe 5 and Daqu (massive raw stater for alcholic liquor) Rate serpentine pipe 6 composition spiral has a down dip pipe, and gas-liquid separation pipe 7 is mainly by gas phase arm 8, descending liquid passage 9, liquid phase arm 10 and gas phase Baffle plate 11 forms.

Gas phase arm 8, descending liquid passage 9 and liquid phase arm 10 be arranged in parallel from top to bottom, descending liquid passage 9 be closed at both ends, The box passage of strip of upper lower open mouth, gas phase arm 8 is connected by descending liquid passage 9 with liquid phase arm 10；Liquid phase arm 10 is close Spiral have a down dip pipe deep camber serpentine pipe 6 one end closing, the other end is uncovered, and gas-liquid separation pipe 7 is with its gas phase arm 8 and spiral The deep camber serpentine pipe 6 of pipe of having a down dip connects.

Gas phase baffle plate 11 be located at descending liquid passage 9 away from spiral have a down dip pipe deep camber serpentine pipe 6 one end, prop up positioned at liquid phase The first half of pipe 10, the upper inside wall of the arc surface laminating liquid phase arm 10 of gas phase baffle plate 11, the area of gas phase baffle plate 11 accounts for liquid The 1/3～1/2 of phase arm 10 cross section is advisable, and gas phase baffle plate 11 place diameter of a circle is equal to the internal diameter of liquid phase arm 10.This reality It is welding with the connection between new each pipe fitting.

As shown in Figure 1, work process of the present utility model is：Slug carrys out stream and first passes around horizontal feed pipe 1 entrance water The expansion tube 2 of safety dress reduces the flow velocity of gas-liquid two-phase and the intensity of liquid plug；Then slug flow through horizontal short tube 3 ease up bent 4 entrance spirals have a down dip the little curvature serpentine pipe 5 of pipe and deep camber serpentine pipe 6, after spiral has a down dip pipe centrifugal force with Force for slug flow to be converted into stratified flow under the dual function of gravity；Stratified flow after conversion enters gas-liquid separation pipe 7, gas Stay gas phase arm 8 under buoyancy, liquid phase enters liquid phase arm 10, Ran Houqi through descending liquid passage 9 under gravity Liquid is biphase to flow to downstream oil vapor treatment equipment through gas phase arm 8 and liquid phase arm 10 respectively.

Claims

1. a kind of duct type coarse separator it is characterised in that：Main by the expansion tube being sequentially communicated, horizontal short tube, gradual elbow, Spiral has a down dip and manages and gas-liquid separating pipe composition.

2. duct type coarse separator according to claim 1 it is characterised in that：Described expansion tube is horizontally mounted, expanding Angular configurations are 10 °～20 °, and horizontal stub length is 10～15 times of its caliber, and the bending radius of gradual elbow is its caliber 3～6 times.

3. duct type coarse separator according to claim 1 it is characterised in that：Described spiral has a down dip the little song of Guan Youyi section Rate serpentine pipe and one section of deep camber serpentine pipe are connected in sequence.

4. duct type coarse separator according to claim 3 it is characterised in that：Described little curvature serpentine pipe and deep camber Spiral bore is identical, and angle of inclination is identical, and inclination angle value is 15 °～30 °, and the spiral number of turns value of the two is 1/3～1/2 Circle.

5. duct type coarse separator according to claim 1 it is characterised in that：Described gas-liquid separation pipe is by from top to bottom Gas phase arm, descending liquid passage and the liquid phase arm composition be arrangeding in parallel, descending liquid passage is closed at both ends, the strip of upper lower open mouth Box passage, gas phase arm and liquid phase arm are by descending liquid channel connection；Liquid phase arm near spiral have a down dip pipe one end closing, separately Open at one end, the gas-liquid separation Guan Yiqi gas phase arm and spiral pipe that has a down dip connects.

6. duct type coarse separator according to claim 5 it is characterised in that：Described spiral has a down dip the little song of Guan Youyi section Rate serpentine pipe and one section of deep camber serpentine pipe are connected in sequence, and gas-liquid separation Guan Yiqi gas phase arm and spiral have a down dip the big of pipe Curvature serpentine pipe connects.

7. duct type coarse separator according to claim 6 it is characterised in that：Described gas phase arm and deep camber serpentine pipe Tilt angled down identical, bore is identical, and liquid phase arm tilt angled down is identical with gas phase arm, liquid phase branch diameter be less than gas phase Branch diameter；Descending liquid channel cross-section width props up the 1/2～2/3 of pipe diameter for liquid phase；It is identical that gas phase arm and liquid phase prop up length of tube, The length of descending liquid passage accounts for the 2/3～3/4 of gas-liquid separation length of tube.

8. duct type coarse separator according to claim 5 it is characterised in that：Described descending liquid passage has a down dip away from spiral One end of pipe is provided with the gas phase baffle plate of arch, and gas phase baffle plate is located at the liquid phase arm first half, arcuate blocking piece place diameter of a circle Prop up bore equal to liquid phase.