CN108786513A - A kind of salt water tank mixing arrangement - Google Patents

A kind of salt water tank mixing arrangement Download PDF

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Publication number
CN108786513A
CN108786513A CN201810632311.8A CN201810632311A CN108786513A CN 108786513 A CN108786513 A CN 108786513A CN 201810632311 A CN201810632311 A CN 201810632311A CN 108786513 A CN108786513 A CN 108786513A
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CN
China
Prior art keywords
water tank
salt water
distribution circuit
nozzle
brine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810632311.8A
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Chinese (zh)
Inventor
王冬石
陈力生
黎剑波
刘伟杰
宋林松
邓明川
陈霆
李兴隆
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China Oilfield Services Ltd
China National Offshore Oil Corp CNOOC
Original Assignee
China Oilfield Services Ltd
China National Offshore Oil Corp CNOOC
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Publication date
Application filed by China Oilfield Services Ltd, China National Offshore Oil Corp CNOOC filed Critical China Oilfield Services Ltd
Priority to CN201810632311.8A priority Critical patent/CN108786513A/en
Publication of CN108786513A publication Critical patent/CN108786513A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/70Spray-mixers, e.g. for mixing intersecting sheets of material
    • B01F25/72Spray-mixers, e.g. for mixing intersecting sheets of material with nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F21/00Dissolving
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50Mixing liquids with solids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50Mixing liquids with solids
    • B01F23/56Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)

Abstract

The present invention provides a kind of salt water tank mixing arrangement, including salt water tank, into cabin pipeline, go out cabin pipeline and circulating pump;Salt water tank include entrance hatch, egress hatch and and distribution circuit, distribution circuit circumferentially, is connected with entrance hatch into cabin pipeline along salt water tank internal face, goes out cabin pipeline and be connected with egress hatch, transfer pipeline is used to export the brine in salt water tank, and distribution circuit is connected with entrance hatch;Distribution circuit is equipped with multiple nozzles, and the jet direction of nozzle is β, 10 °≤β≤60 °, the jet flow ejected by each nozzle is made to form vortex mixing circuit in salt water tank.The present invention drives brine to generate the vortex effect of impulsing with bulkhead collision by flexibly laying multilayer distribution circuit and nozzle, to form vortex mixing circuit, realizes that brine is sufficiently mixed up and down, in the spatial dimension of left and right inside salt water tank.

Description

A kind of salt water tank mixing arrangement
Technical field
The present invention relates to oil-drilling field, more particularly to a kind of salt water tank mixing arrangement.
Background technology
In drilling operation course, drilling platforms stores brine and provide certain density brine by brine cabin device to be used for Allotment well cementation mud (i.e. drilling fluid), to assist drilling platforms to complete oil well completion work.Since brine is crystalloid solution, when long Between stood in cabin, easily form a large amount of sediment in bilge portion, cause brine ratio reduce or it is uneven.In the prior art It is typically employed in salt water tank and blender is installed, stand the brine in cabin to long-time mixes before use, but for boring The cabin that volume is larger in the fields such as well platform or shape is more complex, blender is in the indoor application in cabin by volume of compartment, shape The limitation of shape, to the bottom or corner in cabin, the effect of blender mixing is limited, it is difficult to ensure that full cabin brine uniformly mixes, In the case of brine ratio reduces or is uneven, this will necessarily be to the construction speed of completion practice and the well cementation safety of oil well Have an adverse effect.
Invention content
For above-mentioned technical problem, the embodiment of the present invention provides the salt of a kind of easy for installation, flexible arrangement, good mixing effect Water tank mixing arrangement.
In order to reach the purpose of the present invention, salt water tank mixing arrangement provided by the invention includes salt water tank and circulation line, The circulation line includes into cabin pipeline, goes out cabin pipeline, transfer pipeline and circulating pump;
Entrance hatch, egress hatch and distribution circuit are provided in the salt water tank, the distribution circuit is along the salt water tank Internal face is circumferentially, described to be connected into cabin pipeline with the entrance hatch, it is described go out cabin pipeline be connected with the egress hatch, it is described Transfer pipeline is used to export the brine in the salt water tank, and the distribution circuit is connected with the entrance hatch;
The distribution circuit is equipped with multiple nozzles, the axis of the jet direction and the distribution circuit of each nozzle Direction 10 °≤β≤60 °, makes the jet flow ejected by each nozzle form vortex in the salt water tank mixed at jet angle β Cyclization road.
In above-mentioned salt water tank mixing arrangement, the circulating pump is connected into cabin pipeline with the entrance hatch by described, The circulating pump goes out cabin pipeline described in and is connected with the egress hatch;When salt water tank mixing arrangement works, start circulating pump, Mixed salt water will be waited for via into cabin Pipeline transport to entrance hatch, vortex mixing component will wait for that mixed salt moisture is assigned to salt water tank inner circumferential cloth It in the distribution circuit set, and is sprayed via each nozzle in distribution circuit, the jet flow spiral ejected by each nozzle is made to connect, The vortex mixing circuit rotated along clockwise or inverse gesture needle direction around salt water tank internal face is formed in salt water tank (in inversed taper platform Water curtain shape), and then drive brine to collide generation local eddy currents with bulkhead and impulse, promote the vortex between particles of solute in brine Diffusion makes solute molecule in brine refine abundant, dissolving completely;Meanwhile the brine of brine cabin bottom is vortexed in mixing The top that salt water tank can be moved under the differential pressure action of generation achievees the purpose that be uniformly mixed on a large scale in realization salt water tank, To solve the problems, such as that brine ratio reduces or uneven completion practice and oil security risk caused to increase.Through salt water tank whirlpool Stream mixing after, uniformly mixed brine via go out cabin pipeline, transfer pipeline be conveyed to user use.
In compared with the prior art in such a way that blender carries out brine mixing, nozzle in the salt water tank mixing arrangement Arrangement and installation number can be designed according to practical brine volume of compartment product, flexible shapes, make the jet flow shape ejected by each nozzle At the vortex mixing circuit in inversed taper platform water curtain shape rotated along clockwise or inverse gesture needle direction around salt water tank internal face. When β is more than 60 °, it is meant that the distance of interior sidewall surface of the jet flow of nozzle apart from salt water tank is excessive, makes the stream of annular mixing vortex Dynamic region area is excessively concentrated, then the race way of the lower vortex mixing circuit formed of rotating vortex effect is limited, mixing vortex The bottom of salt water tank and each corner location can not be spread, it is difficult to realize that brine circulates on a large scale in salt water tank, therefore It can not ensure that full cabin brine uniformly mixes.And when β is less than 10 °, i.e. jet angle is too small, and the jet flow of nozzle is unable to reach salt water tank Central area, and then salt water tank central area formed larger area range without vortex dead zone, it is difficult to drive whole cabin Saline flow causes mixed effect bad to form the vortex mixing circuit of inversed taper platform water curtain shape.
Optionally, in the distribution circuit further include multiple diversion pipes, each diversion pipe is equipped with one or more The nozzle.
It is uniformly distributed in distribution circuit to have multiple diversion pipes along same direction of rotation tilt distribution, pacify on each diversion pipe Equipped with one or more nozzles, the brine into distribution circuit is made to evenly distribute to each diversion pipe and be sprayed from its corresponding nozzle Go out, forms the mixing vortex to connect along same direction of rotation spiral, and then it is in inversed taper platform water curtain shape to be formed inside salt water tank Vortex mixing circuit.By rationally designing the injection angular dimensions of diversion pipe spout axis direction and nozzle, make to eject Brine spray angle be β, 10 °≤β≤60 °.When needing to adjust brine spray angle β, even if nozzle injection angular dimensions is certain, Also it is β that final brine spray angle can be flexibly controlled by adjusting the axis direction of diversion pipe nozzle, mixed to meet salt water tank It attaches together the actual techniques requirement set and not only increases the scope of application of nozzle in this way, together without replacing the nozzle assembled When also eliminate the trouble for dismounting nozzle again, avoid frequently dismounting the nozzle adverse effect of bringing sealed nozzle reliability.
Optionally, the quantity of the distribution circuit is set as multiple, and multiple distribution circuit are in parallel, and is located at each described The jet angle β of each nozzle in distribution circuit is equal or different.
It, can be in salt water tank space via each nozzle in multiple distribution circuit being in parallel while the salt jet water stream that ejects The vortex mixing circuit in inversed taper platform water curtain shape of multi-layer rotating is formed in range.By controlling the injection in each distribution circuit Angle beta is equal or different, so that the direction of rotation of each vortex mixing circuit in inversed taper platform water curtain shape is may be the same or different, together When vortex mixing circuit coverage area may be the same or different.Specifically, when the jet angle β of each distribution circuit top nozzle is set as phase Whens equal, the inversed taper platform water curtain of multigroup vortex mixing circuit is overlapped mutually in an axial direction, realizes the upper and lower spatial dimension inside salt water tank Interior brine mixing is abundant;When the jet angle β of each distribution circuit top nozzle is set as different, the back taper of multigroup vortex mixing circuit Platform water curtain is radially overlapped mutually, and realizes that brine mixing is abundant in the left and right spatial dimension inside salt water tank.In different rotary side It is overlapped mutually, under compensating action between multigroup vortex mixing circuit of different coverage areas, entire scope inside salt water tank The circulation power enhancing of interior mixing vortex, and the local eddy currents that generation is collided between the brine and bulkhead effect of impulsing enhances, and compares In the situation of single vortex mixing circuit, multigroup vortex mixing circuit is more advantageous to upper and lower, the left and right sky realized inside salt water tank Between in range brine be sufficiently mixed, keep brine mixing efficiency higher, mixed effect more preferable.
Optionally, the nozzle in each distribution circuit is sequentially connected surrounded area equation or difference.It should Structure design makes to spray the vortex mixing circuit to be formed via the nozzle in each distribution circuit with different area coverage ranges And/or distinct coverage region, to ensure that mixing vortex takes into account the position being not achieved each other, the mixing effectively eliminated in salt water tank is dead Angle.
Optionally, multiple distribution circuit include the first distribution circuit and the second distribution circuit, second distribution pipe Road is sequentially connected by each nozzle in first distribution circuit and is enclosed between first distribution circuit and the egress hatch At the first eddy region, it is sequentially connected by each nozzle in second distribution circuit and surrounds second eddy current region, described first The centerline collineation of the center line of eddy region area defined and the two the first eddy region area defined, and The area equation that the area that first eddy region is surrounded is surrounded with the second eddy current region.
Using the design scheme, keep the jet flow of the corresponding nozzle in the first, second distribution circuit different inside salt water tank Height and position forms the first, second vortex mixing circuit, that is, is in two layers of inversed taper platform being mutually parallel axially being distributed along salt water tank Water curtain, and then drive the brine inside salt water tank in upper and lower spatial dimension to carry out vortex mixing respectively and mix, to ensure to mix whirlpool The effective range of stream region at the top and bottom of salt water tank, is pushed up when using blender to mix to solve in salt water tank The problem of portion and bottom section brine undercompounding.
Optionally, the distribution circuit takes the shape of the letter U arrangement along the internal face of the salt water tank.
Distribution circuit take the shape of the letter U arrangement when, be conducive to the structure for simplifying distribution circuit and reduce distribution circuit top nozzle (or to lead Flow tube and nozzle) quantity, and then reduce infrastructure cost.
Optionally, the nozzle is stainless steel spiral nozzle.
Using stainless steel spiral nozzle, corrosion resistance of the nozzle in brine is on the one hand improved, ensures the work of nozzle Make reliability, on the other hand keeps brine first to eject local helical vortex by the spiral spray characteristic of each nozzle itself The small range first generated in local helical vortex is vortexed the effect of impulsing, and then along a wide range of vortex mixing circuit and salt water tank inner wall Face, which generates, collides the effect that impulses, and keeps brine mixing efficiency higher, mixed effect more preferable.
Optionally, the quantity of the nozzle in each distribution circuit is set as 4 to 10.
The quantity of distribution circuit top nozzle (or diversion pipe and nozzle) need according to effective range of jet size of nozzle and The volume of salt water tank determines, in the embodiment of the present invention, according to salt water tank practical situations, and the nozzle in each distribution circuit Quantity may be configured as 4 to 10.
Specifically, for the smaller space in part inside salt water tank, it can be along the four of salt sump inner wall in each distribution circuit A basic orientation (referring to the opposite four corners of the world direction with salt sump inner space) is uniformly arranged 4 nozzles, makes to be sprayed by each nozzle The jet flow of injection can spiral connect to forming spiral vortex, to realize the vortex mixing of brine in the local space region;For The brine cabin of large volume, by increasing the nozzle quantity in each distribution circuit, to ensure the spray ejected through each nozzle Stream is enough to make to be formed the vortex mixing circuit in entire scope, so that it is guaranteed that the mixing of whole cabin brine is abundant.But nozzle quantity is not yet It is preferably excessive, especially in the case of multigroup distribution circuit is set, avoid spray liquid flow excessively it is intensive cause to interfere each other draw The case where vortex mixing effect reduces is played, the waste of nozzle assembly is also avoided.
Optionally, the salt water tank mixing arrangement further includes:Return line is provided with liquid collection opening on the return line, One end of the return line is connected to by the liquid collection opening with the salt water tank, the other end of the return line with it is described go out Cabin piping connection.
Optionally, there are one the liquid collection openings or multiple, the liquid collection opening is arranged along the axially spaced-apart of the return line.
In use, the brine in salt water tank can be flowed back by liquid collection opening, (or suction reflux) extremely flows back salt water tank mixing arrangement Pipeline is delivered to out cabin pipeline via return line, not only contributes to the delivery efficiency for improving mixed rear brine in this way, and be convenient for Remaining brine hydrops in discharge salt water tank in time avoids the accumulation of raffinate in salt water tank to the mixing of next round brine or salt water tank Service life adversely affects.
Optionally, the salt water tank mixing arrangement further includes filter, the filter be located at it is described go out cabin pipeline or On the transfer pipeline.
Filter is set on going out cabin pipeline or transfer pipeline, the impurity particle in mixed rear brine can be removed, it is ensured that warp Salt water tank it is mixed go out cabin brine it is uniformly pure, meanwhile, avoid in brine impurity particle from blocking circulating pump.
The present invention having the beneficial effect that compared with the prior art:
1, by uniformly distributed several distribution circuit and nozzle, brine is driven to be touched with bulkhead to form vortex mixing circuit It hits, be vortexed and impulse, realize inside salt water tank up and down, brine is sufficiently mixed in the spatial dimension of left and right, promote brine mixed effect;
2, it by using spiral nozzle, realizes that local small range spiral vortex impulses, improves brine mixed effect;
3, the arrangement and installation number of diversion pipe and nozzle can be designed according to practical brine volume of compartment product, flexible shapes, And use process is easy for installation, energy consumption is low, service life is long, good mixing effect.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages can be by specification, rights Specifically noted structure is realized and is obtained in claim and attached drawing.
Description of the drawings
Attached drawing is used for providing further understanding technical solution of the present invention, and a part for constitution instruction, with this The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the overlooking structure diagram according to the salt water tank mixing arrangement of one embodiment of the invention;
Fig. 2 is the main structure diagram of Fig. 1;
Fig. 3 is the main structure diagram according to the salt water tank mixing arrangement of another embodiment of the present invention;
Fig. 4 is the salt water tank overlooking structure diagram in Fig. 3.
Wherein, the relationship in Fig. 1-Fig. 4 between reference numeral and component names is:
1 circulating pump, 2 into cabin pipeline, and 3 into cabin valve, 4 salt water tanks, 5 entrance hatch, 6 egress hatch, 7 distribution circuit, and 701 first Distribution circuit, 702 second distribution circuit, 8 diversion pipes, 9 nozzles, 10 go out cabin pipeline, and 11 go out cabin valve, 12 filters, 13 conveyings Pipeline, 14 conveying valves, 15 permeability cells.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application Feature mutually can arbitrarily combine.
Present disclosure will be discussed in detail by specific embodiment below.
Wherein Fig. 1 is the overlooking structure diagram according to the salt water tank mixing arrangement of the embodiment of the present invention one;Fig. 2 is figure 1 main structure diagram;Fig. 3 is the main structure diagram according to the salt water tank mixing arrangement of the embodiment of the present invention two; Fig. 4 is 4 overlooking structure diagram of salt water tank in Fig. 3.Content shown in Fig. 3 and Fig. 4 is equally applicable to the explanation of embodiment one.
Embodiment one
From figure 1 it appears that salt water tank mixing arrangement includes circulating pump 1, salt water tank 4 and circulation line, circulation line Including into cabin pipeline 2, go out cabin pipeline 10, transfer pipeline 13;Salt water tank 4 includes entrance hatch 5, egress hatch 6 and distribution circuit 7.It follows Ring pump 1 into cabin pipeline 2 with entrance hatch 5 by being connected, and circulating pump 1 is connected by going out cabin pipeline 10 with egress hatch 6, delivery pipe Road 13 is used to export the brine in salt water tank 4, transfer pipeline 13 and into being respectively equipped with switch valve on cabin pipeline 2.Distribution circuit 7 Along salt water tank 4 internal face circumferentially, distribution circuit 7 is connected with entrance hatch 5, distribution circuit 7 be equipped with multiple nozzles 9 (only schematical sections in attached drawing), the jet direction of each nozzle 9 form jet angle β (in attached drawing with the axis direction of distribution circuit 7 Only schematical sections), 10 °≤β≤60 °, the jet flow ejected by each nozzle 9 is made to form vortex mixing circuit in salt water tank 4.
In the present embodiment, when salt water tank mixing arrangement works, starts circulating pump, mixed salt water will be waited for via defeated into cabin pipeline 2 It sending to entrance hatch 5, vortex mixing component will wait for that mixed salt moisture is assigned in the distribution circuit 7 of 4 inner circumferential of salt water tank arrangement, and via Each nozzle 9 in distribution circuit 7 sprays, and the jet flow spiral ejected by each nozzle 9 is made to connect, and is formed and is surrounded in salt water tank 4 The vortex mixing circuit (being in inversed taper platform water curtain shape) of 4 internal face of salt water tank rotated along clockwise or inverse gesture needle direction, in turn It drives brine to collide generation local eddy currents with bulkhead to impulse, promotes the eddy diffusivity effect between particles of solute in brine, make salt Solute molecule refinement is abundant in water, it is complete to dissolve;Meanwhile the pressure difference that the brine of 4 Room bottom of salt water tank is generated in mixing vortex is made With the lower top that can move to salt water tank 4, achieve the purpose that be uniformly mixed on a large scale in realization salt water tank 4, to solve Brine ratio reduces or uneven the problem of causing completion practice and oil security risk to increase.It is complete through 4 vortex mixing of salt water tank Bi Hou opens the switch valve on transfer pipeline 13, closes into the switch valve on cabin pipeline 2, uniformly mixed brine is by going out cabin Pipeline 10, transfer pipeline 13 are conveyed to user's use.
In compared with the prior art in such a way that blender carries out brine mixing, nozzle 9 in the salt water tank mixing arrangement Arrangement and installation number can according to practical 4 volume of salt water tank, flexible shapes design, make the spray ejected by each nozzle 9 Stream forms the vortex mixing in inversed taper platform water curtain shape rotated clockwise or counterclockwise around 4 internal face of salt water tank Circuit.When β is more than 60 °, it is meant that the distance of interior sidewall surface of the jet flow of nozzle 9 apart from salt water tank 4 is excessive, makes annular mixing whirlpool The flow region area of stream is excessively concentrated, then the race way of the lower vortex mixing circuit formed of rotating vortex effect is limited, mixes The bottom of salt water tank 4 and each corner location can not be spread by closing vortex, it is difficult to realize brine a wide range of recycle stream in salt water tank 4 It is dynamic, therefore can not ensure that full cabin brine uniformly mixes.And when β is less than 10 °, i.e. jet angle is too small, and the jet flow of nozzle 9 can not reach It is difficult to the central area of salt water tank 4, and then in 4 central area of salt water tank formation larger area range without vortex dead zone To drive whole cabin saline flow to form the vortex mixing circuit of inversed taper platform water curtain shape, and then cause mixed effect bad.
In the present embodiment, the salt water tank mixing arrangement further includes return line (not shown), and return line can be with Along the peripheral portion setting or all settings of salt water tank 4, one or more liquid collection openings are provided on return line, return line One end is connected to by the liquid collection opening with salt water tank, the other end of return line and goes out cabin piping connection.Multiple liquid collection openings edges are returned The axial direction on flow tube road can be uniformly distributed or it is heterogeneous be spaced apart, which can directly be opened in going out on the wall of pipeline Fluid apertures can also use the forms such as the liquid trap being mounted on pipeline, can also be the collection being directly opened on salt water tank inner wall Liquid mouth is not necessarily to that return line is arranged at this time.Salt water tank mixing arrangement is in use, the brine in salt water tank can be returned by the liquid collection opening Stream (or suction reflux) is delivered to out cabin pipeline 10 to return line via return line, not only contribute to improve in this way it is mixed after The delivery efficiency of brine, and convenient for remaining brine hydrops in discharge salt water tank in time, avoid raffinate accumulation pair in salt water tank Next round brine mixes or the service life of salt water tank adversely affects.
It should be noted that in the present embodiment, it is equipped with permeability cell 15 close to the position of roof in salt water tank 4, in order to salt Discharge accumulation gas, maintains air pressure balance in salt water tank 4 in water tank 4, prevents air pressure in salt water tank 4 excessively high to vortex mixing effect Have an adverse effect.Entrance hatch 5 can be arranged in the top of egress hatch 6, can also be arranged in the lower section of egress hatch 6, entrance hatch 5 It can be arranged in the top of salt water tank 4 or lower part any position, egress hatch 6 can also be arranged on the top or lower part of salt water tank 4 Any position, return line, which can also be arranged, does not limit this in the bottom of salt water tank 4 or any other position, the present embodiment System.When entrance hatch 5 is located at the top of egress hatch 6, is conducive to reduce saline flow resistance in this way, reduces and lost along stroke pressure, Improve the reliability that nozzle 9 sprays the jet direction of liquid, it is ensured that good mixed effect.When return line is arranged in salt water tank When 4 bottom, the liquid collection opening for being conducive to flow into lower part during brine flows from above to below, or can will be residual efficiently to export The brine hydrops discharge for staying in brine bilge portion drains.
Further, further include multiple diversion pipes 8 (only schematical sections in attached drawing) in distribution circuit 7, on each diversion pipe 8 Equipped with one or more nozzles 9.
In the present embodiment, as shown in Fig. 2, uniformly distributed in distribution circuit 7 have along same direction of rotation tilt distribution Multiple diversion pipes 8, on each diversion pipe 8 installation make into distribution circuit 7 there are one nozzle 9 (can also be equipped with multiple nozzles 9) Brine evenly distribute to each diversion pipe 8 and ejected from the nozzle of its nozzle end 9, formed along same direction of rotation spiral The mixing vortex to connect, and then formation is in the vortex mixing circuit of inversed taper platform water curtain shape inside salt water tank 4.By properly setting The injection angular dimensions for counting 8 spout axis direction of diversion pipe and nozzle 9 makes the brine spray angle ejected for β, 10 °≤β≤ 60°.When needing to adjust brine spray angle β, even if the injection of nozzle 9 angular dimensions can be by adjusting 8 nozzle of diversion pipe if certain Axis direction flexibly control final brine spray angle be β, with meet salt water tank mixing arrangement actual techniques requirement, and Without the nozzle 9 assembled is needed to change, the scope of application of nozzle 9 is not only increased in this way, while also eliminating dismounting spray again The trouble of mouth 9 avoids frequently dismounting the adverse effect that nozzle 9 brings 9 sealing reliability of nozzle.
In the present embodiment, as shown in Fig. 2, diversion pipe 8 include the vertical section perpendicular with the axis direction of distribution circuit 7 and The tilting section of fixed jet angle β is formed with axis direction, nozzle 9 is detachably connected on the end of tilting section, diversion pipe 8 and nozzle 9 junction is equipped with the leakproofness that sealing structure improves nozzle 9, and the injection pressure to ensure brine is accurate.Distribution circuit 7 will be into Cabin brine is assigned in each diversion pipe 8, and the vortex ring mixing to be formed around vortex mixing cabin internal face is ejected through each nozzle 9 Circuit.
It can be integrally formed, can also be connected by the way of assembling between tilting section and vertical section, it is different by selecting Tilting section and vertical section length and size, can adjust installation site, range of jet and the injection of diversion pipe 8 top nozzle 9 Angle beta.Round-corner transition is used between tilting section and vertical section, reduces saline flow resistance, and then is reduced brine and flowed in diversion pipe 8 The linear loss of dynamic pressure improves the reliability of 9 jet speed of nozzle, to ensure vortex mixing function and effect.
Further, the quantity of distribution circuit 7 is set as multiple, as shown in figure 3, multiple distribution circuit 7 are in parallel, is located at The jet angle β of each nozzle 9 in each distribution circuit 7 is equal or different.It is easily understood that the quantity of distribution circuit 7 can root It is selected according to the practical mixing demand of salt water tank 4.Multiple distribution circuit 7 can be connected by a main distribution circuit, the main distribution circuit It is connect with entrance hatch 5, multiple outlets is opened up in main distribution circuit and are connected respectively with each distribution circuit, the main distribution circuit It may be provided in salt water tank 4 or outside salt water tank 4.
It, can be in salt water tank 4 via each nozzle 9 in multiple distribution circuit 7 being in parallel while the salt jet water stream that ejects The vortex mixing circuit in inversed taper platform water curtain shape of multi-layer rotating is formed in spatial dimension.By controlling in each distribution circuit 7 Jet angle β it is equal or different, make each vortex mixing circuit in inversed taper platform water curtain shape direction of rotation can it is identical or Difference, while vortex mixing circuit coverage area may be the same or different.Specifically, when the jet angle of 7 top nozzle 9 of each distribution circuit When β is set as equal, the inversed taper platform water curtain of multigroup vortex mixing circuit is overlapped mutually in an axial direction, realize inside salt water tank 4 it is upper, Brine mixing is abundant within the scope of down space;When the jet angle β of 7 top nozzle 9 of each distribution circuit is set as different, multigroup vortex is mixed The inversed taper platform water curtain in cyclization road is radially overlapped mutually, and realizes that brine mixing is filled in the left and right spatial dimension inside salt water tank 4 Point.It is overlapped mutually, under compensating action between different rotary direction and multigroup vortex mixing circuit of different coverage areas, brine The circulation power enhancing of mixing vortex in 4 inside entire scope of cabin, and the local eddy currents that generation is collided between brine and bulkhead swash Shake effect enhancing, compared to the situation of single vortex mixing circuit, multigroup vortex mixing circuit, which is more advantageous to, to be realized in salt water tank 4 Portion brine is sufficiently mixed up and down, in the spatial dimension of left and right, keep brine mixing efficiency higher, mixed effect more preferable.
Further, the nozzle 9 in each distribution circuit 7 is sequentially connected surrounded area equation or not Together.The structure design makes the vortex mixing circuit formed via the injection of nozzle 9 in each distribution circuit 7 have different covering surfaces Product range and/or distinct coverage region are effectively eliminated with ensuring that mixing vortex takes into account the position being not achieved each other in salt water tank 4 Mixing dead angle.
In the present embodiment, as shown in Figure 3 and Figure 4, multiple distribution circuit 7 include the first distribution circuit 701 and the Two distribution circuit 702, second distribution circuit 702 is between first distribution circuit 701 and the egress hatch 6, and One distribution circuit 701, the second distribution circuit 702 are connected by a main distribution circuit, which connect with entrance hatch 5, Main distribution circuit is equipped with two and exports and be connected respectively with the first distribution circuit 701, the second distribution circuit 702.By described Each nozzle 9 in one distribution circuit 701, which is sequentially connected, surrounds the first eddy region, by each in second distribution circuit 702 Nozzle 9, which is sequentially connected, surrounds second eddy current region, the center line of the first eddy region area defined and described second The centerline collineation of first eddy region area defined, and the area and described second that first eddy region is surrounded The area equation that eddy region is surrounded.
Using the design scheme, the first distribution circuit 701, the jet flow of corresponding nozzle 9 in the second distribution circuit 702 is made to exist 4 inside different height position of salt water tank forms the first, second vortex mixing circuit, that is, is in two layers be axially distributed along salt water tank 4 The inversed taper platform water curtain being mutually parallel, and then the brine in the upper and lower spatial dimension in 4 inside of salt water tank is driven to carry out vortex mixing respectively It mixes, to ensure that the effective range of mixing vortex spreads 4 top and bottom region of salt water tank, to solve using stirring 4 inner top of salt water tank and the problem of bottom section brine undercompounding when device mixes.
In the present embodiment, as shown in Figure 1 and Figure 4, distribution circuit 7 takes the shape of the letter U arrangement along the internal face of the salt water tank.? Meet 4 inside of salt water tank to be formed in the case of the requirement of vortex ring mixing circuit, distribution circuit 7 is set as U-shaped, is conducive to letter Change distribution circuit 7 and the number of structures of 7 top nozzle 9 (or diversion pipe 8 and nozzle 9) of distribution circuit, and then reduces infrastructure cost.When So, distribution circuit 7 can also take the shape of the letter U along the internal face of salt water tank or C-shaped or be circular layout.
Jet flow in order to further increase nozzle 9 mixes effect, and nozzle 9 is stainless steel spiral nozzle 9.
Using stainless steel spiral nozzle 9, corrosion resistance of the nozzle 9 in brine is on the one hand improved, ensures nozzle 9 On the other hand functional reliability makes brine by the spiral spray characteristic of each nozzle 9 itself to eject local helical vortex The small range generated first in local helical vortex is vortexed the effect of impulsing, and then with a wide range of vortex mixing circuit and salt water tank 4 Internal face, which generates, collides the effect that impulses, and keeps brine mixing efficiency higher, mixed effect more preferable.
Further, the quantity of the nozzle 9 in each distribution circuit 7 is set as 4 to 10.
The quantity of 7 top nozzle 9 (or diversion pipe 8 and nozzle 9) of distribution circuit needs big according to effective range of jet of nozzle 9 The volume of small and salt water tank 4 determines, in the embodiment of the present invention, according to 4 practical situations of salt water tank, each distribution circuit 7 On the quantity of nozzle 9 may be configured as 4 to 10
Specifically, for the 4 smaller space in inside part of salt water tank, it can be along salt sump inner wall four in each distribution circuit 7 A basic orientation is uniformly arranged 4 nozzles 9, so that the jet flow spiral ejected by each nozzle 9 is connected and forms spiral vortex, with Realize the vortex mixing of brine in the local space region;Can also only it be arranged for the smaller corner space in part in salt water tank 1,2 or 3 etc., it can play the role of promoting the saline flow mixing in local corner space;For larger appearance Long-pending brine cabin, by increasing by 9 quantity of nozzle in each distribution circuit 7, to ensure the jet flow ejected through each nozzle 9 foot So as to be formed subject to the vortex mixing circuit in entire scope, so that it is guaranteed that whole cabin brine is sufficiently mixed.But 9 quantity of nozzle is not yet It is easily excessive, especially in the case of multigroup distribution circuit 7 are set, avoid spray liquid flow excessively it is intensive cause to interfere each other draw The case where vortex mixing effect reduces is played, the waste of 9 component of nozzle is also avoided.
Further, salt water tank mixing arrangement further includes filter 12, and filter 12 is located at cabin pipeline 10 or conveying On pipeline 13.
Filter 12 is set on going out cabin pipeline 10 or transfer pipeline 13, the impurity particle in mixed rear brine can be removed, Ensure through salt water tank 4 it is mixed go out cabin brine it is uniformly pure, meanwhile, avoid in brine impurity particle from blocking circulating pump 1.
Embodiment two
It is further elaborated with reference to a specific embodiment.As shown in Figure 3 and Figure 4, in the embodiment, salt The volume of water tank 4 is 600m3, length is respectively 10m, 10m, 6m, the brine conveying cycle of the salt water tank mixing arrangement Pump type selecting is 125m3/ h selects stainless steel spiral nozzle 9, and each pipeline is all made of stainless steel pipeline.According to the brine hybrid system Discharge pressure range, each pipeline size, the volume of salt water tank 4 and the shape of middle circulating pump 1, design scheme is after calculating:Brine 4 inside two groups of distribution circuit 7 setting up and down of cabin, about 0.5 meter from the bilge of the first distribution circuit 701, the second distribution circuit 702 is from cabin The number of about 3 meters of bottom, uniformly distributed diversion pipe 8 and nozzle 9 along clockwise direction in each distribution circuit 7, diversion pipe 8 and nozzle 9 Amount is 7, and the angle of the jet flow ejected via each nozzle 9 is β, and β is 45 °.
The operating procedure when present invention works is as follows:
1) it opens into the switch valve on cabin pipeline 2, closes the switch valve on transfer pipeline 13;
2) start circulating pump, wait for that mixed salt water is sprayed by being arranged in the spiral nozzle 9 in salt water tank 4 everywhere, in salt water tank 4 Wait for that mixed salt water is mixed;
3) it when waiting for mixed salt water after mixing, closes into the switch valve on cabin pipeline 2, opens the switch on transfer pipeline 13 Uniformly mixed brine is conveyed to brine user through transfer pipeline 13 by circulating pump 1 and used by valve.
In the description of the embodiment of the present invention, it is to be understood that term "upper", "lower", "front", "rear", "inner", The orientation or positional relationship of the instructions such as "outside", " end face ", " internal face ", " circumferential direction ", " side ", " first ", " second " be based on Orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than indicates or imply institute The structure of finger has specific orientation, construction and quantity, therefore is not considered as limiting the invention.
In the description of the embodiment of the present invention, it should be noted that unless otherwise clearly defined and limited, term is " even Connect ", " being fixedly connected ", " laying ", " installation " shall be understood in a broad sense, can also be detachably to connect for example, it may be being fixedly connected It connects, or is integrally connected and can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill of this field For personnel, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use Embodiment is not limited to the present invention.It should be appreciated that salt water tank mixing arrangement provided in this embodiment can also be applied to In other hybrid system structures outside the drilling fluid salt water tank mixing arrangement structural requirement.In any fields of the present invention Technical staff, do not depart from disclosed herein spirit and scope under the premise of, can implementation form and details it is enterprising Row any modification and variation, but the scope of patent protection of the present invention, the appended claims that must still be subject to are defined.

Claims (11)

1. a kind of salt water tank mixing arrangement, including salt water tank and circulation line, it is characterised in that:
The circulation line includes into cabin pipeline, goes out cabin pipeline, transfer pipeline and circulating pump;
Entrance hatch, egress hatch and distribution circuit, inner wall of the distribution circuit along the salt water tank are provided in the salt water tank Face is circumferentially, described to be connected into cabin pipeline with the entrance hatch, it is described go out cabin pipeline be connected with the egress hatch, the conveying Pipeline is used to export the brine in the salt water tank, and the distribution circuit is connected with the entrance hatch;
The distribution circuit is equipped with multiple nozzles, the axis direction of the jet direction and the distribution circuit of each nozzle At jet angle β, 10 °≤β≤60 °, the jet flow ejected by each nozzle is made to form vortex mixing ring in the salt water tank Road.
2. salt water tank mixing arrangement according to claim 1, it is characterised in that:
The distribution circuit further includes multiple diversion pipes, and each diversion pipe is equipped with one or more nozzles.
3. salt water tank mixing arrangement according to claim 1, it is characterised in that:
The quantity of the distribution circuit is set as multiple, and multiple distribution circuit are in parallel, and is located in each distribution circuit Each nozzle the jet angle β it is equal or different.
4. salt water tank mixing arrangement according to claim 3, it is characterised in that:
Nozzle in each distribution circuit is sequentially connected surrounded area equation or difference.
5. salt water tank mixing arrangement according to claim 3, it is characterised in that:
Multiple distribution circuit include the first distribution circuit and the second distribution circuit, and second distribution circuit is located at described the Between one distribution circuit and the egress hatch, it is sequentially connected by each nozzle in first distribution circuit and surrounds the first vortex Domain is sequentially connected by each nozzle in second distribution circuit and surrounds second eddy current region, and first eddy region is enclosed At region center line and the two the first eddy region area defined centerline collineation, and first vortex The area equation that the area that region is surrounded is surrounded with the second eddy current region.
6. salt water tank mixing arrangement according to any one of claims 1-5, it is characterised in that:
The distribution circuit takes the shape of the letter U arrangement along the internal face of the salt water tank.
7. salt water tank mixing arrangement according to any one of claims 1-5, it is characterised in that:
The nozzle is stainless steel spiral nozzle.
8. salt water tank mixing arrangement according to any one of claims 1-5, it is characterised in that:
The quantity of the nozzle in one distribution circuit is set as 4 to 10.
9. salt water tank mixing arrangement according to any one of claims 1-5, which is characterized in that the salt water tank mixing dress It sets and further includes:
Return line is provided with liquid collection opening on the return line, and one end of the return line passes through the liquid collection opening and institute State salt water tank connection, the other end of the return line with it is described go out cabin piping connection.
10. salt water tank mixing arrangement according to claim 9, it is characterised in that:
There are one the liquid collection openings or multiple, and the liquid collection opening is arranged along the axially spaced-apart of the return line.
11. salt water tank mixing arrangement according to any one of claims 1-5, it is characterised in that:
The salt water tank mixing arrangement further includes filter, and the filter goes out cabin pipeline or the transfer pipeline described in On.
CN201810632311.8A 2018-06-19 2018-06-19 A kind of salt water tank mixing arrangement Pending CN108786513A (en)

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Application Number Priority Date Filing Date Title
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