Two introduced layer tower expansion cavate separators
Technical field
The invention belongs to the centrifugal cyclone sedimentation-separation technology field of multi-phase ingredients, be suitable for containing the gas-solid phase of solid particle, liquid-solid phase, contain the gas-liquid phase medium of drop, under the very big operating mode of its changes in flow rate scope, carry out high efficiency separation.
Background technology
Decanter type and centrifugal cyclone formula separator are the maximum multiphase separator patterns of commercial Application amount.Decanter type relies on gravity to promote the sedimentation and the come-up of heavy, light phase, needs very big sedimentation face.The centrifugal cyclone formula relies on centrifugal force field to carry out the brute force separation, and efficient is higher.General decanter type separator (jar) often with the centrifugation of inlet, attaches to the container inner wall sedimentation heavy ends, light component make progress buoyance lift gather in to exporting, remove the particle or the drop of sneaking into through filter again.And centrifugal cyclone formula separator often is called cyclone separator, hydrocyclone etc. according to the difference of purposes.
Common decanter type separator contains the heavy phase of a large amount of suspensions in its jar inner chamber body, rise the heavy phase particle because the upflow velocity of lightweight phase can not blow, so its volume is big, efficient is low and flow can not excess load.Horizontal decanter type is good slightly, but still can not satisfy the demands.
Centrifugal cyclone formula separator by means of powerful centrifugal force field, can make light, dense media fast hierarchical, has higher separative efficiency and production capacity.But because the adding of no moment of face is being deferred under the prerequisite of the moment of momentum theorem, angular velocity of rotation and pressure between each layer of medium are inconsistent, and the shearing turbulent flow and the eddy current of generation can make the separating effect variation.Under the violent situation of eddy flow, can cause big micelle broken, stir and bear foam or produce emulsification, make medium be difficult to separate; The effect and eddy flow is too gently had no way of.Because it is the tangential flow velocity is that swirl strength is directly proportional in the increase and decrease of flow, therefore generally very narrow corresponding to the treating capacity scope of high efficiency separation.
The situation that load variations such as Oil-gas Separation are big or change the field of employment for oil, gas field often requires treatment facility to have big as far as possible operating flexibility.Adopt cut-out, the input operation of a plurality of equipment parallel connections not only to bother, also increase cost,, do not catch up with operation and will be absorbed in failure state if working conditions change is too frequent.
Summary of the invention
The present invention is just to the above-mentioned deficiency that has separator now; And a kind of brand new that creates and action principle effective more " two introduced layer towers expansion cavate separator "; Can overcome the deficiency of existing separator technology; Greatly promote the variable working condition conformability of separator, and can dwindle the volume of separator significantly.
The invention provides a kind of structure is simple relatively, efficient, treating capacity changes accommodation very greatly, strong, the withstand voltage high separator of medium rerum natura adaptability; Satisfy under oil, gas-field exploitation and other occasions, for gas-liquid separation, gas-solid and liquid-solid demand of separating.
The innovative technology solution that the present invention taked is:
1. layer tower expanded the separation chamber of cavity structure
The present invention is divided into upper and lower two sections with the inner room of eddy flow sedimentation separation jar (16), the layering that its main cyclone section (18) is accomplished medium and dense media mutually rely on the mobile of inwall.And the eddy flow settling section (17) of multilayer expansion; It then is emphasis of the present invention; It has the structure of the multilayer expansion cavate as layer tower; Through the conical cavity structure of expansion gradually, one section cylindrical cavity is communicated to the cylindrical cavity of next section enlarged-diameter, form awl post chamber in layer---i.e. the conical cavity of one section expansion is one section cylindrical cavity of continued access again.The number of plies in awl post chamber is minimum to be one deck, does not limit at most, and the diameter of following one deck cylindrical cavity is greater than last layer, and each chamber all axially connects, the bottom sealing in last one deck awl post chamber.
Adopt above-mentioned structure, can play the effect of two aspects:
First effect is the self adaptation that reaches treating capacity.When flow increases, the switching that binding medium imports, can descend fast flows in next layer awl post chamber, because the increase of diameter can significantly reduce swirl strength, can not stir foam and emulsification, and continues to separate and attach the wall sedimentation; And if flow continues to increase, medium also can descend fast and flow in the bigger awl post chamber of next layer diameter, reduces swirl strength again, continues to separate and attach the wall sedimentation, and the like.If treating capacity is less, medium is just almost accomplished in last layer awl post chamber and is separated, and is deposited to following awl post chamber again.
Second effect is to make the separator working stability.Utilize the wall attachment effect (Coanda effect) of jet, the inwall in flaring awl chamber, the axial flow of medium can be along boring the chamber wall to extrinsic deflection; Thereby avoid the rising discharge currents of light substance phase, produce downwards, circulation in the chamber that makes progress along the center along the wall periphery; Can make the separator working stability; Avoid as pure cylindrical cavity, stream impacts with the contrajet head-on collision of bottom in the medium in the chamber, causes self-oscillatory abominable situation.
2. machine-processed corresponding to two importings of different flow
Separator of the present invention adopts two independently medium inlet and entrance cavities.Under the low discharge; Blending agent mostly from low discharge inlet (2) through low discharge surge chamber (6), entad enter prewhirl by force the rotational flow generator (20) after; The tangential flows in the eddy flow sedimentation separation jar (16) carries out centrifugal and sedimentation separation, because flow is little, the tangential velocity of inflow is limited; Swirl strength is also suitable, can not stir and bear foam or produce emulsification.And when treating capacity increases, regulate control through the stream of outside, blending agent passes through big flow surge chamber (4) from the big flow inlet (1) on top mostly; Enter in the axial rotational flow generator (22) and carry out suitable prewhirling, flow under the spiral again in the eddy flow sedimentation separation jar (16) and carry out centrifugal and sedimentation separation, because flow is big; The tangential velocity that spiral gets into is still higher; Enough cyclonic separation, and the axial flow velocity of spiral flow can make medium drop to quickly in the bigger awl post chamber of one deck diameter; The treating capacity of avoiding the time to grow stirring living foam and increase separator automatically.
3. multiunit any parallel connection and parts shared
Separator of the present invention also adopts the topology layout that a plurality of separative element parallel connections are used; Each eddy flow sedimentation separation unit all is made up of entad rotational flow generator (20), light substance delivery line (15), the dense media leadout hole parts such as (14) of the axial rotational flow generator (22) of eddy flow sedimentation separation jar (16) separately, the big flow blending agent of prewhirling, the low discharge blending agent of prewhirling; Axially rotational flow generator (22) is installed on the upper surface of upper spacer (5); Upper spacer (5) is opened upper spacer perforate () in the position that axial rotational flow generator (22) is covered; Entad rotational flow generator (20) is contained between upper spacer (5) and the median septum (7); Median septum is opened median septum perforate (19) in the hollow position place correspondence of rotational flow generator (20) entad, axially rotational flow generator (22), entad rotational flow generator (20), two dividing plates perforate all with eddy flow sedimentation separation jar (16) the centering center of circle.Structure like this; Parts such as each eddy flow sedimentation separation unit can the common media inlet, outlet, surge chamber, membrane support; And all needn't bear pressure medium, and therefore can save wide variety of materials cost and space, the pressure of medium relies on the shell (3) of separator to bear.
The invention has the beneficial effects as follows:
1. can promote the changes in flow rate accommodation of separator significantly, the high efficiency range of separative efficiency is broad, and operating flexibility is big, need frequently not regulate from the outside.
2. be difficult for stirring living foam and emulsification in the separator, separator is strong to the adaptability of medium rerum natura.
3. drag losses is little, and the treating capacity of unit volume equipment is big.
4. the saving material is easy to manufacture, can bear high-pressure medium, is adapted to the separation of high-pressure oil gas especially.
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further explanation.
Description of drawings
Accompanying drawing 1 is the overall construction drawing of the two introduced layer tower expansion of the present invention cavate separator.
Accompanying drawing 2 is in each eddy flow sedimentation separation unit of separator of the present invention, the structure chart of the entad rotational flow generator (20) of the low discharge blending agent of prewhirling.
Accompanying drawing 3 is in each eddy flow sedimentation separation unit of separator of the present invention, first kind of version of the axial rotational flow generator (22) of the big flow blending agent of prewhirling---the structure chart of the axial rotational flow generator (22) realized by the axial diversion prerotation vane.
Accompanying drawing 4 is in each eddy flow sedimentation separation unit of separator of the present invention, second kind of version of the axial rotational flow generator (22) of the big flow blending agent of prewhirling---the structure chart of the axial rotational flow generator (22) realized by spiral grooves shaft part ().
Referring to accompanying drawing 1; The two introduced layer towers expansion of the present invention cavate separator comprises big flow surge chamber (4), low discharge inlet (2) that shell (3), upper spacer (5), median septum (7), lower clapboard (9), big flow inlet (1), upper spacer and shell upper surround, go up and in conflux chamber (8), dense media of the low discharge surge chamber (6) that surrounds of two dividing plates and shell upper portion, the neutralization dense media that lower portion surrounds in two dividing plates and the shell down export conflux chamber (11), light substance of light substance that (10), lower clapboard and outer casing underpart surround and export (12) and at least one eddy flow sedimentation separation unit institute.For each eddy flow sedimentation separation unit, mainly form by separately eddy flow sedimentation separation jar (16), jar underseal closing plate (13), the axial rotational flow generator (22) of the big flow blending agent of prewhirling, the entad rotational flow generator (20) of the low discharge blending agent of prewhirling, light substance delivery line (15), dense media leadout hole parts such as (14).Wherein axial rotational flow generator (22) is installed on the upper surface of upper spacer (5), and upper spacer (5) is opened upper spacer perforate () in the position that axial rotational flow generator (22) is covered; And entad rotational flow generator (20) is installed between upper spacer (5) and the median septum (7), and median septum is opened median septum perforate (19) in the hollow position place correspondence of rotational flow generator (20) entad.Upper and lower eddy flow settling section (17) two parts that are divided into main cyclone section (18) and multilayer expansion of the inner room of eddy flow sedimentation separation jar (16); Main cyclone section (18) is a cylindrical cavity; Or one section of cylindrical cavity continued access shrinks conical cavity and then connects cylindrical cavity, and the eddy flow settling section (17) of multilayer expansion be up-small and down-big layer turriform, and the structure of each layer is bores the post chamber---i.e. the conical cavity of one section expansion is one section cylindrical cavity of continued access again; The number of plies in awl post chamber is minimum to be one deck, does not limit at most; The diameter of following one deck cylindrical cavity is greater than last layer; Each chamber all axially connects; The bottom in last one deck awl post chamber is by jar underseal closing plate (13) sealing, the middle part vertical plug-in mounting light substance delivery line (15) of jar underseal closing plate (13), and the light substance after derived score leaves is to the light substance chamber (11) of confluxing; Open dense media leadout hole (14) at the periphery of jar underseal closing plate (13) or the periphery bottom in last one deck awl post chamber, the dense media after derived score leaves is to the dense media chamber (8) of confluxing.
Referring to accompanying drawing 2; Prewhirl the entad rotational flow generator (20) of low discharge blending agent; Blade is arranged by radial by the multi-disc assembly formed of runoff blade (24) entad by being one, is installed in to encircle support plate (23) and runoff blade on the runoff blade down between the ring support plate (25).
This assembly is installed between upper spacer (5) and the median septum (7); The circle diameter at blade outer rim place greater than median septum pod apertures () directly; The interior round opening diameter of ring support plate (25) is close down to encircle the interior circle of support plate (23) opening diameter, runoff blade on the distribution circle diameter of blade inside edge and the blade; Three centers of circle alignment, blade be shaped as straight plate shape or crooked, twisted shape.
The low discharge blending agent is from the i.e. excircle of rotational flow generator (20) entad of this assembly; Inwardly get into the entad runner between the runoff blade (24), receive the guide functions of blade, become rotating flow; The tangential gets into the inferior upper space in the eddy flow sedimentation separation jar (16), beginning eddy flow and sedimentation separation.
Referring to accompanying drawing 3, the axial rotational flow generator (22) of the big flow blending agent of prewhirling, the assembly that one of its version is made up of multi-disc spiral axial blade (27), blade is arranged by radial, is installed in the blade sleeve (26).
This assembly be axial rotational flow generator (22) be installed on rotational flow generator (20) entad above, promptly encircle the upper surface of support plate (23) on the runoff blade, and the center of circle of aliging with it.The diameter of blade sleeve (26) is more than or equal to the interior round opening diameter that encircles support plate (23) on the blade, and being shaped as of blade twisted or prismatic blade, along the hand of spiral rotation inclination installation of the interior circle of blade sleeve (26).
Big flow blending agent gets into the runner between the spiral axial blade (27) from the port of blade sleeve (26), receives the guide functions of blade, becomes axial screw stream, flows into the upper space in the eddy flow sedimentation separation jar (16), beginning eddy flow and sedimentation separation down.
Referring to accompanying drawing 4; The prewhirl axial rotational flow generator (22) of big flow blending agent; Two of its version is by screw sleeve (28), and jacket also installs its circumferential surface and is processed with the assembly that the screw rod shaft part (29) of single-screw groove or many spiral grooves is formed.
This assembly be axial rotational flow generator (22) be installed on rotational flow generator (20) entad above; It is the upper surface that encircles support plate (23) on the runoff blade; And the center of circle of aliging with it, the diameter of screw sleeve (28) is more than or equal to the interior round opening diameter that encircles support plate (23) on the blade.
Big flow blending agent gets into the spiral grooves of screw rod shaft part (29) and the helical flow path that sleeve lining is surrounded from the port of screw sleeve (28); Receive its guide functions; Become axial screw stream, flow into the upper space in the eddy flow sedimentation separation jar (16), beginning eddy flow and sedimentation separation down.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated, but be not limited to present embodiment.
As shown in Figure 1; The two introduced layer towers expansion of the present invention cavate separator, big flow surge chamber 4, the low discharge inlet 2 that surrounds by shell 3, upper spacer 5, median septum 7, lower clapboard 9, big flow inlet 1, upper spacer and shell upper, go up and in the low discharge surge chamber 6 that surrounds of two dividing plates and shell upper portion, the neutralization dense media that lower portion surrounds in two dividing plates and the shell down confluxes that chamber 8, dense media export 10, lower clapboard and outer casing underpart surround light substance conflux chamber 11, light substance export 12 and at least one eddy flow sedimentation separation unit formed.Wherein: each eddy flow sedimentation separation unit all is made up of parts such as the entad rotational flow generator 20 of separately eddy flow sedimentation separation jar 16, jar underseal closing plate 13, the axial rotational flow generator 22 of the big flow blending agent of prewhirling, the low discharge blending agent of prewhirling, light substance delivery line 15, dense media leadout holes 14; Axially rotational flow generator 22 is loaded on the upper surface of upper spacer 5; Upper spacer 5 is opened upper spacer perforate 21 in the position that axial rotational flow generator 22 is covered; Entad rotational flow generator 20 is contained between upper spacer 5 and the median septum 7, and median septum is opened median septum perforate 19 in the hollow position place correspondence of rotational flow generator 20 entad.Upper and lower eddy flow settling section 17 two parts that are divided into main cyclone section 18 and multilayer expansion of the inner room of eddy flow sedimentation separation jar 16; Main cyclone section 18 is a cylindrical cavity, or one section of cylindrical cavity continued access shrinks conical cavity and then connect cylindrical cavity, and the eddy flow settling section 17 of multilayer expansion is up-small and down-big layer turriform; The structure of each layer is awl post chamber---i.e. and the conical cavity of one section expansion is one section cylindrical cavity of continued access again; The number of plies in awl post chamber is minimum to be one deck, does not limit at most, and the diameter of following one deck cylindrical cavity is greater than last layer; Each chamber all is axially to connect, and the bottom in last one deck awl post chamber is sealed by jar underseal closing plate 13.The middle part vertical plug-in mounting light substance delivery line 15 of jar underseal closing plate 13; Eddy flow sedimentation separation jar 16 and the light substance chamber 11 of confluxing is communicated with; Open dense media leadout hole 14 at the periphery of jar underseal closing plate 13 or the periphery bottom in last one deck awl post chamber, last one deck awl post chamber and the dense media chamber 8 of confluxing is communicated with.
Axial rotational flow generator 22 in each eddy flow sedimentation separation unit, entad rotational flow generator 20, corresponding upper spacer perforate 21, median septum perforate 19 all with separately the eddy flow sedimentation separation jar 16 centering centers of circle.
Under the low discharge situation; Blending agent enters separator from the low discharge inlet; Through low discharge surge chamber 6, enter one or more more simultaneously entad in the rotational flow generator 20, produce through the runner between the entad runoff blade 24 wherein and prewhirl; Enter the inferior upper space of corresponding eddy flow sedimentation separation jar 16 again, beginning eddy flow and sedimentation separation.
Under heavy traffic condition, blending agent enters separator from big flow inlet, through big flow surge chamber 4; Enter simultaneously again in one or more axial rotational flow generator 22; Through one of flow passage structure form between the spiral axial blade 27 wherein), or the groove runner version of the screw rod shaft part 29 through wherein two), become axial screw stream; Flow into the upper space in the corresponding eddy flow sedimentation separation jar 16 down, beginning eddy flow and sedimentation separation.
The cylindrical cavity of each different inner diameters of eddy flow sedimentation separation jar 16 inner chambers connects transition by the conical cavity of the corresponding respectively cylindrical cavity up and down of two ends internal diameter; The inside diameter ranges of each cylindrical cavity is between 4~2500 millimeters; The draw ratio scope is 0.1~10; The interior cone angle of conical cavity is between 2~150 °, and the ratio of the internal diameter in two-layer adjacent column chamber is between 1: 1.02~1: 2, and the thickness of eddy flow sedimentation separation jar 16 walls is between 0.2~30 millimeter.
Light substance after the light substance delivery line 15 of jar end plug-in mounting will separate imports light substance that lower clapboard and outer casing underpart surround and confluxes in the chamber 11, exports 10 outflows from dense media again.During dense media leadout hole 14 imports dense media, lower portion surrounds in two dividing plates and the shell down dense media confluxes in the chamber 8, again from dense media outlet 10 outflows.
The height of light substance delivery line 15 is between 1~600 millimeter, and diameter is between 1~300 millimeter, and height is between 5~3000 millimeters.The diameter of dense media leadout hole 14 is between 1~300 millimeter.
Shown in accompanying drawing 2, layer tower expansion cavate eddy flow settlement separator of the present invention is in each eddy flow sedimentation separation unit; Prewhirl the entad rotational flow generator 20 of low discharge blending agent, be one by multi-disc runoff blade 24 entad, arrange by radial; Be installed in and encircle the assembly of being formed between the ring support plate 25 under support plate 23 and the runoff blade on the runoff blade; This assembly is installed between upper spacer 5 and the median septum 7, and it is close to encircle opening diameter round in the support plate 25 under ring support plate 23 interior circles and the runoff blade on the distribution circle diameter of blade inside edge and the blade, the alignment of three centers of circle; Entad the quantity of runoff blade 24 is 2~30; Thickness is 0.1~20 millimeter, blade be shaped as straight plate shape, or crooked, twisted shape; Blade outer rim place's tangent line and arrangement circle angle radially are between-45 °~+ 45 °, and inner edge place tangent line and angle β radially are between 0 °~90 °.
Shown in accompanying drawing 3, layer tower expansion cavate eddy flow settlement separator of the present invention is in each eddy flow sedimentation separation unit; The prewhirl axial rotational flow generator 22 of big flow blending agent, one of its version is by multi-disc spiral axial blade 27, arranges by radial; Be installed in the assembly of being formed in the blade sleeve 26; This assembly be installed on rotational flow generator 20 entad above, i.e. the upper surface of ring support plate 23 on the runoff blade, and the center of circle of aliging with it.The diameter of blade sleeve 26 is more than or equal to the interior round opening diameter of ring support plate 23 on the blade; Between 3~1500 millimeters; 2~30 of spiral axial blade 27 quantity, 0.2~20 millimeter of thickness, being shaped as of blade twisted or prismatic blade; Hand of spiral rotation along blade sleeve 26 interior circles tilts to install, and the inclination angle γ of blade outer rim and sleeve axis is between 1 °~88 °.
Shown in accompanying drawing 4, layer tower expansion cavate eddy flow settlement separator of the present invention is in each eddy flow sedimentation separation unit; The prewhirl axial rotational flow generator 22 of big flow blending agent; Two of its version is by screw sleeve 28, and jacket also installs its circumferential surface and is processed with the assembly that the screw rod shaft part 29 of single-screw groove or many spiral grooves is formed, this assembly be installed on rotational flow generator 20 entad above; It is the upper surface of ring support plate 23 on the runoff blade; And the center of circle of aliging with it, the diameter of screw sleeve 28 is more than or equal to the interior round opening diameter of ring support plate 23 on the blade, between 3~1500 millimeters; The lead of screw angle of screw rod shaft part is between 10 °~80 °, and length is between 4~1500 millimeters.