CN110142148A - Centrifuge is used in a kind of processing of oilfield sump oil - Google Patents
Centrifuge is used in a kind of processing of oilfield sump oil Download PDFInfo
- Publication number
- CN110142148A CN110142148A CN201910316829.5A CN201910316829A CN110142148A CN 110142148 A CN110142148 A CN 110142148A CN 201910316829 A CN201910316829 A CN 201910316829A CN 110142148 A CN110142148 A CN 110142148A
- Authority
- CN
- China
- Prior art keywords
- rotary drum
- end cap
- liquid
- centrifuge
- big end
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B1/2008—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with an abrasion-resistant conveyor or drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
- B04B11/082—Skimmers for discharging liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/08—Rotary bowls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B2001/2041—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with baffles, plates, vanes or discs attached to the conveying screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B2001/2083—Configuration of liquid outlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B2001/2091—Configuration of solids outlets
Abstract
The present invention provides a kind of oilfield sump oil processing centrifuge, belong to oilfield sump oil processing equipment technical field, including rotary drum and screw input feeder, screw input feeder is located at the inside of rotary drum and coaxial arrangement, including integrally formed tapered zone and straight tube area, the end in tapered zone and straight tube area is respectively arranged with the small end end cap and big end end cap connecting with rotary drum；Oil mutually outlet and the liquid skimming device for aqueous phase liquid to be discharged are set at the big end end cap of rotary drum.Centrifuge of the present invention can be mutually adjusted with water phase interface in non-stop-machine situation to oily, by the way that liquid skimming device is arranged at big end end cap to guarantee the clarity for the crude oil isolated；By the way that deslagging auxiliary body is arranged on the spiral cylinder at big end end cap, solve the problems, such as that accumulated slag blocks at big end end cap；By can dynamically adjust displacement, improve the purity for the crude oil isolated in oily mutually outlet setting drain regulating mechanism；Centrifuge separative efficiency of the present invention is high, securely and reliably, simple to operate.
Description
Technical field
The invention belongs to oilfield sump oil processing equipment technical field, it is related to producing during oil field mining liquid and produced water treatment
Raw oil recovery reprocessing, and in particular to centrifuge is used in a kind of oilfield sump oil processing.
Background technique
In the processing of later Produced Liquid, it will usually the sump oil containing sulfide grain occur in sewage
The phenomenon that settling tank, oil removing pot and sewage recovery pond top are largely enriched with forms a kind of very intractable sump oil.Research achievement table
The black solid particle with weak magnetic that is bright, isolating from sump oil, main component are magnetic iron ore (Fe(1-x)S) and yellow
Iron ore (FeS2), wherein magnetic iron ore has weak ferromagnetism, and the two belongs to ferrous sulfide.These contain ferrous sulfide
The sump oil of grain is usually recovered in oil dehydrator according to production treatment process and carries out dehydration again, as a result in electric dehydrator
The excessive layer of black among middle formation causes the electric dehydrator electric field that collapses to be given to influence the normal production run of crude oil dehydrating system
Produced Liquid and produced water treatment facility cause very big harm, have seriously affected the normal production of multi-purpose station system, and at
For problem anxious to be resolved in the production of oil field.Therefore, it is necessary to the oil recoveries for solving to generate in oil field produced liquor treating process again
It handles and gives production bring practical problem, enter the harm that electric dehydrator generates the electric field that collapses to eliminate direct waste oil recovery, make to locate
Crude oil after reason is up to standard outer defeated, has great importance to guarantee production even running.
Currently, for the sump oil generated during oil field later period multi-purpose station Produced Liquid and produced water treatment, mostly take by
The mode of the direct outlet of sump oil, not only has lost a large amount of crude oil in this way, also will cause serious environmental pollution；In addition, some
Oil field takes to transport to sump oil point outside and pre-processed returns the mode that multi-purpose station is handled again, equally will also result in sulfide to life
Produce the influence that equipment operates normally.
The Three-phase decanter centrifuge of existing maturation is mainly to utilize the opposite difference in specific gravity of weight liquid-solid phase-light liquid three-phase, and lead to
Excessive effect of centrifugal force realizes centrifugal force sedimentation layering.As shown in Figure 1, existing Three-phase decanter centrifuge includes rotary drum
1, screw input feeder 2, differential mechanism 3 and feed pipe 4, rotary drum 1 and screw input feeder 2 are rotated with certain differential same-directional high-speed, object
Material is continually introduced into 2 inner cylinder of screw input feeder by feed pipe 4, and rotary drum 1 is entered after acceleration, under the influence of centrifugal force, heavier
Solid precipitation form sediment layer on rotatory drum wall, the solid formation of deposition is continuously pushed into rotary drum and bored by screw input feeder 2
Shape area exports through slag phase and is discharged；The light liquid outlet through rotary drum straight tube area and heavy-fluid go out respectively for lighter liquid phase and heavier liquid phase
Mouth discharge.
The ferrous sulfide particle in sump oil can be separated using Three-phase decanter centrifuge, and carry out normal recycling and locate again
Reason.But make it with stickiness due to containing chemical oil displacement agent in sump oil, and the ferrous sulfide particle in greasy dirt is relatively fine,
Carried out in oil recovery reprocessing process using conventional three-phase decanter centrifugal separator, that there are centrifuge separating effects is poor, turn
The problems such as drum is easy to be stained with the ferrous sulfide particle isolated, slag easily blocks discharge gate and can not arrange.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of oilfield sump oil processing centrifuge, which passes through big end
Deslagging auxiliary body, drain regulating mechanism and liquid skimming device is arranged in position, solves the problems, such as the deslagging of liquid channel, realizes that dynamic is adjusted
The oily moisture content for saving liquid phase boundaries radius surface, guaranteeing separation improves separating effect.
The invention adopts the following technical scheme:
A kind of oilfield sump oil processing centrifuge, including rotary drum (1) and screw input feeder (2), screw input feeder (2), which is located at, to be turned
The inside and coaxial arrangement, rotary drum (1) for rousing (1) include integrally formed tapered zone (11) and straight tube area (12), tapered zone (11)
The small end end cap (7) and big end end cap (6) connecting with rotary drum (1) are respectively arranged with the end of straight tube area (12)；Rotary drum (1)
A settling tank (5), high-speed rotating centrifugation are formed between straight tube area (12) inner wall and the spiral cylinder (21) of screw input feeder (2)
Power to sequentially form oily phase layer, aqueous layer and slag phase layer in settling tank (5) from inside to outside, at the small end end cap (7) of rotary drum (1)
It is provided with slag phase outlet (8), the oil being connected with oily phase layer mutually outlet (9) is provided at the big end end cap (6) of rotary drum (1)；Turn
It is provided with a liquid skimming device (20) at the big end end cap (6) of drum (1), liquid skimming device (20) is provided with slash corresponding with aqueous layer
Liquid mouth (203) is connected for accommodating from the slash sap cavity (204) for skimming the aqueous phase liquid that liquid mouth (203) flow into and with sap cavity (204) are skimmed
Logical slash liquid pipe (205) is skimmed liquid pipe (205) and is rotatably connected on big end end cap (6), and liquid outlet stretches out big end end cap (6)
Form water phase outlet (10).
In above-mentioned oilfield sump oil processing centrifuge, the liquid skimming device (20) further include:
Baffle (202) is rotatably mounted in the concave step that spiral cylinder (21) is equipped with, side and spiral cylinder
(21) concave step vertical walls are close to, and there are spacing between the horizontal wall of the concave step of spiral cylinder (21)；With
Eccentric wheel (201), and baffle (202) integrally connected, be arranged between baffle (202) and big end end cap (6) and with
Big end end cap (6) inner top side has spacing；
Eccentric wheel (201) and baffle (202), big end end cap (6) are formed by space as sap cavity (204) are skimmed, and skim liquid mouth
(203) side adjoining with the inner sidewall of rotary drum (1) in baffle (202) is set.
In above-mentioned oilfield sump oil processing centrifuge, the slash liquid pipe (205) is bent pipeline, skims liquid pipe (205) and passes through
Big end end cap (6) is fixed together with eccentric wheel (201), and one handle (206) is fixed on the slash liquid on the outside of big end end cap (6)
It manages on (205).
In above-mentioned oilfield sump oil processing centrifuge, it is provided at the slag phase outlet (8) and is opened for adjusting slag phase outlet (8)
The slag phase outlet regulator (50) of mouth size；The oil, which mutually exports, is provided with a drain regulating mechanism (30) at (9), drain is adjusted
The arrival end of mechanism (30) is located in oil phase liquid face and the height of the arrival end of drain regulating mechanism (30) is adjustable.
In above-mentioned oilfield sump oil processing centrifuge, the drain regulating mechanism (30) includes an adjustable thread pipe (301), can
Screwed pipe (301) are adjusted to be threadedly coupled with oily mutually outlet (9), the arrival end of adjustable thread pipe (301) is located in oil phase liquid face.
In above-mentioned oilfield sump oil processing centrifuge, the slag phase outlet regulator (50) includes covering slag phase outlet (8) one
Partial flapper and the adjusting nut for adjusting flapper adjust the position of flapper by adjusting nut
Adjust the size of slag phase outlet (8).
Above-mentioned oilfield sump oil processing centrifuge further includes a deslagging auxiliary body (40), and deslagging auxiliary body (40) setting exists
On the barrel of spiral cylinder (21) at big end end cap (6), including the disk (401) being arranged on the barrel of spiral cylinder (21)
With multiple auxiliary blades (402) on welding disk, auxiliary blade (402) and rotary drum (1) inner wall, adjoining spiral blade (22) with
And have gap between big end (96), setting is arranged in parallel or is at an angle of between multiple auxiliary blades (402).
In above-mentioned oilfield sump oil processing centrifuge, the inner wall of the rotary drum (1) and the spiral cylinder of screw input feeder (2)
(21) and on the surface of helical blade (22) surfacing has hard alloy protective layer or is inlaid with hard alloy wear plate.
In above-mentioned oilfield sump oil processing centrifuge, tapered zone (11) side of the rotary drum (1) is provided with feed pipe (4),
A feed space (211) are equipped with inside the spiral cylinder (21) of screw input feeder (2), which is connected with feed pipe (4)
It is logical, and at least one discharge port (212) and settling tank of feed space (211) by setting on the barrel of spiral cylinder (21)
(5) it is connected.
In above-mentioned oilfield sump oil processing centrifuge, the helical blade (22) of the screw input feeder (2) is interior with rotary drum (1)
There is gap between wall, which is 1mm-5mm.
Using the above technological means, the present invention is had following technical effect that
(1) centrifuge of the present invention, can be in non-stop-machine situation to oily phase by the way that liquid skimming device is arranged at big end end cap
It is adjusted with water phase interface, to guarantee the clarity for the crude oil isolated；
(2) it by the way that deslagging auxiliary body is arranged on the spiral cylinder at big end end cap, will be accumulated in oily phase near exit
Sediment agitation, sediment flows to auger conveyor, is pushed to the normal discharge in slag phase outlet by helical blade, solves big end end cap
The problem of locating accumulated slag blocking；
(3) by the way that mutually drain regulating mechanism is arranged in outlet in big end position oil, displacement can be dynamically adjusted, separation is improved
The purity of crude oil out helps to improve the separative efficiency of centrifuge.
Centrifuge of the present invention can separate the solid slags such as ferrous sulfide particle in sump oil and a large amount of waste water, solve
The sump oil isolated enters crude oil dehydrating system and is reprocessed problem across electric field, and separative efficiency is high, securely and reliably, operation
It is simple and convenient, meet the needs of oilfield sump oil processing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing three-phase decanter centrifugal separator；
Fig. 2 is the structural schematic diagram of centrifuge of the present invention；
Fig. 3 is the structural schematic diagram of liquid skimming device；
Fig. 4 is the structural schematic diagram of deslagging auxiliary body.
Appended drawing reference indicates in figure are as follows:
1- rotary drum, the tapered zone 11-, 12- straight tube area；
2- screw input feeder, 21- spiral cylinder, 211- feed space, 212- discharge port, 22- helical blade；
3- differential mechanism；4- feed pipe；5- settling tank；6- big end end cap；7- small end end cap；
The outlet of 8- slag phase；The mutually outlet (light liquid outlet) of 9- oil；10- water phase exports (heavy liquid exit)；
20- liquid skimming device, 201- eccentric wheel, 202- baffle, 203- skim liquid mouth, and 204- skims sap cavity, and 205- skims liquid pipe, 206-
Handle；
30- drain regulating mechanism, 301- adjustable thread pipe；
40- deslagging auxiliary body, 401- disk, 402- auxiliary blade；
50- slag phase outlet regulator；
60- oil, water interface.
Specific embodiment
Currently, in oilfield sump oil process field there is separation in existing Three-phase decanter centrifuge in sump oil treatment process
The problems such as effect is poor, rotary drum is easily stained with the ferrous sulfide particle isolated, discharge gate blocks not easy-to-discharge slag, in order to solve above-mentioned ask
Topic, the present invention provide a kind of oilfield sump oil processing centrifuge, and the centrifuge is enterprising on existing Three-phase decanter centrifuge basis
Row redesigns, and by the sedimentation tank depth that drain regulating device is arranged, increases rotary drum in spiral big end, guarantees consolidating for centrifuge
Liquid separating effect；By at spiral big end end cap be arranged liquid skimming device, can non-stop-machine situation to oil, moisture offline into
Row is adjusted, and improves the degree of purity for the crude oil isolated；By increasing the differential ratio between screw input feeder and rotary drum, and in spiral
Big end lengthens helical blade, reduces spacing between blade and oil exit pipe, and assists in spiral big end setting deslagging
Mechanism, i.e., be welded with the disk of auxiliary blade to stack shell increase, solves centrifuge and slags tap unsmooth, easy blockage problem.
Below in conjunction with attached drawing and specific implementation example, oilfield sump oil processing of the present invention is described in detail with centrifuge.
As depicted in figs. 1 and 2, centrifuge of the present invention is suitable for the dirt generated during oil field mining liquid and produced water treatment
Oil separation and recovery, including rotary drum 1, screw input feeder 2, differential mechanism 3 and feed pipe 4, in which:
Rotary drum 1 is hollow cylinder, including integrally formed tapered zone 11 and straight tube area 12, one end where tapered zone 11
It is provided with small end end cap 7, one end where straight tube area 12 is provided with big end end cap 6；Screw input feeder 2 is located at the inside of rotary drum 1
And be coaxially disposed, including spiral cylinder 21 and the helical blade 22 being arranged on 21 outer wall of spiral cylinder, equally, spiral cylinder 21
It also include the direct tube section and conical section of integrally connected.
A settling tank 5 is formed between the inner wall and screw input feeder 2 of rotary drum 1；The tapered zone 11 of the setting rotary drum 1 of feed pipe 4
Side is equipped with a feed space 211 inside the spiral cylinder 21 of screw input feeder 2, which is connected with feed pipe 4, and
Feed space 211 passes through at least one discharge port 212 for being arranged on the barrel of spiral cylinder 21 and is connected with settling tank 5, by into
The material (oil field mining liquid and recovered water) that expects pipe 4 inputs is entered in settling tank 5 by feed space 211；Preferably, feed space
211 circumferentially-spaced is provided with multiple discharge ports 212 being connected with settling tank 5.
It successively include dry section and decanting zone inside rotary drum 1, dry section is located at the tapered zone 11 of rotary drum 1, in dry section
It is provided with slag phase outlet 8 at small end end cap 7, is provided with slag phase outlet regulator 50 at slag phase outlet 8, for adjusting slag phase outlet
8 outlet size prevents from blocking outlet because of slag phase particle packing, for example, slag phase outlet regulator 50 include flapper and
For adjusting the adjusting nut of flapper, flapper covers a part of slag phase outlet 8, lives by the way that adjusting nut is adjustable
The position of dynamic baffle and then the size for adjusting slag phase outlet 8；It is understood that slag phase outlet regulator 50 be not limited to it is above-mentioned
Structure can also apply this application as long as the other structures of the outlet size of slag phase outlet 8 can be adjusted；Decanting zone 5 is located at rotary drum 1
Straight tube area 12, oily mutually outlet 9 and water phase outlet 10 are provided at the big end end cap 6 of decanting zone.
In order to guarantee that the relative rotation between screw input feeder 2 and rotary drum 1 is smooth, the outer rim and rotary drum 1 of helical blade 22
Inner wall between have gap, guarantee both relatively rotate do not interfere the case where, the gap is as small as possible, guarantee solid phase (slag
Phase) material pushes in dry section, and is discharged through slag phase outlet 8, it is contemplated that the factor of manufacture craft, helical blade 22 and rotary drum
The gap of 1 inner wall is preferably 1mm-5mm.
In order to guarantee slag phase material to push to dry section, rotary drum 1 and screw input feeder 2 should keep differential in the same direction to rotate,
Differential mechanism 3 is connect with screw input feeder 2, and 6 side of big end end cap or small end end of rotary drum 1 can be arranged in differential mechanism 3 by bearing
7 side of lid, motor output power control rotary drum 1 and rotate, and control screw input feeder 2 by differential mechanism 3 and revolve with 1 differential of rotary drum
Turn.Heavy duty, the cycloidal-pin wheel of large transmission ratio, planetary gear or hydraulic differential can be selected in differential mechanism 3；It preferably, can will be poor
Fast device 3 is connected to a Control System of Microcomputer, poor according to material concentration, the automatic adjustment of changes in flow rate situation by Control System of Microcomputer
The differential speed and torque of fast device 3.
Abrasion of centrifuge during high speed rotation can seriously affect the service life of centrifuge, and the present invention is to rotary drum
Surfacing hard alloy protective layer or edge on the surface of 1 inner wall and the spiral cylinder 21 of screw input feeder 2 and helical blade 22
Embedding hard alloy wear plate reinforces the wear resistance of centrifuge of the present invention.
Because the water content of sulfur compound sump oil is variation, usually on the top of oil storage tank, oily content is some more, water
Content is less, and in the lower part of oil storage tank, oily content is few, and the content of water is more, so in the case where flow is certain, oil, water
The variation of content is so that oil, water interface 60 when the sump oil into centrifuge is layered also can and then change, to will lead to water
Mutually outlet 10 might have oil stream out or oil phase outlet 9 might have water flow and come out, and the oily moisture content isolated is caused to increase.
In order to solve this problem, the adjusting of oil, water interface 60 is realized, a slash liquid is arranged in the present invention at the big end end cap 6 of rotary drum 1
Device 20, aqueous phase liquid are drawn by liquid skimming device 20.In as with the embodiments shown in figures 2 and 3, liquid skimming device 20 includes bias
Wheel 201, baffle 202, slash liquid pipe 205 and handle 206, baffle 202 are rotatably mounted on the interior concave station that spiral cylinder 21 is equipped with
On rank, 202 side of baffle is close to the concave step vertical walls of spiral cylinder 21, and the water with the concave step of spiral cylinder 21
There are spacing between planomural, the side adjoining with the inner sidewall of rotary drum 1 of baffle 202, which offers, skims liquid mouth 203, eccentric wheel 201
It is arranged between baffle 202 and big end end cap 6 and has spacing, baffle 202 and eccentric wheel 201 1 with 6 inner top side of big end end cap
Body connection, eccentric wheel 201 are formed by space as sap cavity 204 is skimmed, for accommodating from slash liquid mouth with baffle 202, big end end cap 6
203 aqueous phase liquids flowed into；Slash liquid pipe 205 is bent pipeline, and it is fixed across big end end cap 6 and eccentric wheel 201 to skim liquid pipe 205
Together, the inlet for skimming liquid pipe 205 is connected with sap cavity 204 is skimmed, and the liquid outlet for skimming liquid pipe 205 stretches out big end end cap 6, handle
206 are fixed in slash liquid pipe 205, due to having distance between the eccentric shaft of eccentric wheel 201 and the rotation axis of spiral cylinder 21, rotate
Handle 206 can be rotated with movable eccentric wheel 201, and then baffle 202 is driven to move, and the size for skimming liquid mouth 203 changes.
In the case where flow is certain, in the centrifuge course of work of the present invention, when the sump oil water content for entering feed space 211
When more, oil content is lacked, baffle 202 can be made to rotate down by the handle 206 of rotation liquid skimming device 20, skim liquid mouth 203 and become larger,
Increasing water-dis-placing liquid radius surface, slash liquid pipe drainability in this way increases, while the radius of oil, water interface 60 also increases with it, from
And ensure that the oily moisture content of discharge will not increase due to water increases in former sump oil, it ensure that the pure of the crude oil isolated
Degree；On the contrary when enter centrifuge in sump oil it is aqueous less, oil-containing it is more when, rotate liquid skimming device 20 handle 206, make baffle 202
It is rotated up, skims liquid mouth 203 and become smaller, reduce water-dis-placing liquid radius surface, slash liquid pipe drainability in this way reduces, while oil water surface
Radius also reduces therewith, to ensure that the water oil content of discharge will not increase due to oil mass increases in former sump oil, ensure that point
The moisture content of the crude oil separated out.
In one embodiment, the outlet end for skimming liquid pipe 205 is taper, prevents aqueous phase liquid from largely releasing.
As shown in Fig. 2, at least provided with the mutually outlet 9 of an oil at the big end end cap 6 of rotary drum 1, because there is depositing for oily mutually outlet 9
So that at big end end cap 9 regional area deposit solid formation can not be discharged in time, for a long time, the slag isolated will be got over
Product is more, is deposited at big end end cap 6, blocks liquid channel, influences the separating effect of centrifuge.To solve liquid channel accumulated slag
Problem, a deslagging auxiliary body 40 is arranged on 21 barrel of spiral cylinder at big end end cap 6 in the present invention, such as Fig. 2 and Fig. 4 institute
Show, deslagging auxiliary body 40 includes the multiple auxiliary lobes being arranged on the disk 401 on 21 barrel of spiral cylinder and welding disk
Piece 402 has gap, multiple auxiliary between 1 inner wall of auxiliary blade 402 and rotary drum, adjoining spiral blade 22 and big end end cap 6
Setting is arranged in parallel or is at an angle of between blade 402.When sediment at big end end cap 6 gathers, auxiliary blade 402 can be reinforced
The disturbance of sediment is played the role of assisting sediment rotation, and it is normal to be flowed to screw input feeder 2 by the agitation of auxiliary blade for sediment
Discharge.
Adjusting of the present invention by the setting drain regulating mechanism 30 realization water-dis-placing liquid radius surface at oily mutually outlet 9, such as Fig. 2
Shown in embodiment, drain regulating mechanism 30 includes an adjustable thread pipe 301, and adjustable thread pipe 301 and oil mutually export 9 screw threads
Connection, the arrival end of adjustable thread pipe 301 are located in oil phase liquid face.It screws adjustable thread pipe 301 and adjustable thread pipe 301 is adjusted
Entrance height, and then adjust discharge oil phase liquid in water content, and then adjust water-dis-placing liquid radius surface.
It is assembled into oilfield sump oil processing centrifuge of the present invention according to above-mentioned connection relationship with upper-part, which will be dirty
Oil is sent into high-speed rotating feed space 211 by feed pipe 4, and for sump oil under high speed rotation state, it is heavy to be entered by discharge port 212
Pond 5 drops, and high-speed rotating rotary drum 1, which generates powerful centrifugal force, makes sump oil realize sedimentation layering in settling tank 5, i.e., closeer than liquid phase
The inner wall that big slag phase particle is close to rotary drum 1 is spent, slag phase layer is formed；Lighter crude oil (light liquid) floats on innermost layer, forms oily phase
Layer；Heavier water (heavy-fluid) is formed aqueous layer (middle layer) between slag phase layer and oily phase layer.In order to realize continuous separation,
Oil is arranged at the big end end cap 6 in the straight tube area 12 of rotary drum 1, and mutually outlet 9 and water phase outlet 10, the straight tube area 12 of rotary drum 1 are (heavy
Drop area) oil pass through respectively with water oil mutually outlet 9 and water phase outlet 10 discharge, can by be mounted on oil phase export 9 at drain
Regulating mechanism 30 adjusts the liquid level radius of water phase, and the handle 202 of liquid pipe 20 is skimmed by rotation, changes the size for skimming liquid mouth 203,
And then oil water surface is adjusted, thus the moisture content for the oil that control is isolated；Small end end cap 7 positioned at the tapered zone of rotary drum 1 11
Slag phase is set and exports 8, differential mechanism 3 guarantees that screw input feeder 2 and rotary drum 1 keep therebetween stable relative rotation speed, so that heavy
It forms sediment under promotion of the solid slag on 1 inner wall of rotary drum in the helical blade 22 of screw input feeder 2, it is (dry into the tapered zone of rotary drum 1
Dry area), and through 8 discharge of slag phase outlet, tapered zone 11 (dry section) " climbing " extrusion dehydration of solid slag before discharge through rotary drum 1
Process, can control the water content of solid slag.
Centrifuge separative efficiency of the present invention is high, securely and reliably, simple to operate, can be by the ferrous sulfide in sump oil
Solid slags and a large amount of waste water such as grain are separated, and are solved the sump oil isolated and are entered crude oil dehydrating system and are reprocessed across electricity
The problem of field meets the needs of oilfield sump oil processing.Centrifuge of the present invention has the following characteristics that
(1) liquid skimming device 20 is set at the big end end cap 6 of rotary drum 1, it can be in non-stop-machine situation to oily phase and water phase
Interface is adjusted, i.e., the moisture content according to required by the moisture content of sump oil to be separated or subsequent crude Treatment system carries out
Adjust, by rotate liquid skimming device 20 handle 206, come change liquid skimming device 20 drainability and oil mutually and water phase boundary
Radius surface, to guarantee the clarity for the crude oil isolated；
(2) deslagging auxiliary body 40 is set on the spiral cylinder 21 at big end end cap 6, i.e., by spiral cylinder 21
Disk 401 is set on barrel, and welds auxiliary blade 402 on disk 401, the sediment accumulated near oily mutually outlet 9 is stirred
Dynamic, sediment flows to auger conveyor 2, is pushed to the normally discharge of slag phase outlet 8 by helical blade, solves product at big end end cap 6
The problem of slag blocks；
(3) drain regulating mechanism 30 is set in 9 positions of oily mutually outlet, i.e., by adjusting adjustable thread pipe 301, can adjusts
The water content of the oil phase liquid of discharge improves the purity for the crude oil isolated, and helps to improve the separative efficiency of centrifuge.
It will be appreciated by those skilled in the art that these embodiments are merely to illustrate the present invention without limiting model of the invention
It encloses, the various equivalent variations and modification made to the present invention belong to the disclosure of invention.
Claims (10)
1. a kind of oilfield sump oil handles centrifuge, including rotary drum (1) and screw input feeder (2), screw input feeder (2) are located at rotary drum
(1) inside and coaxial arrangement, rotary drum (1) include integrally formed tapered zone (11) and straight tube area (12), tapered zone (11) and
The end in straight tube area (12) is respectively arranged with the small end end cap (7) and big end end cap (6) connecting with rotary drum (1)；Rotary drum (1) it is straight
A settling tank (5), high-speed rotating centrifugal force are formed between cylinder area's (12) inner wall and the spiral cylinder (21) of screw input feeder (2)
So that sequentially forming oily phase layer, aqueous layer and slag phase layer from inside to outside in settling tank (5), it is characterised in that: the small end of rotary drum (1)
It is provided with slag phase outlet (8) at end cap (7), the oil being connected with oily phase layer is provided at the big end end cap (6) of rotary drum (1) and is mutually gone out
Mouth (9)；It is provided with a liquid skimming device (20) at the big end end cap (6) of rotary drum (1), liquid skimming device (20) is provided with and aqueous layer phase
It is corresponding skim liquid mouth (203), for accommodates from skim liquid mouth (203) flow into aqueous phase liquid slash sap cavity (204) and with slash sap cavity
(204) the slash liquid pipe (205) being connected is skimmed liquid pipe (205) and is rotatably connected on big end end cap (6), and liquid outlet stretches out big
End cap (6) are held to form water phase outlet (10).
2. oilfield sump oil according to claim 1 handles centrifuge, which is characterized in that the liquid skimming device (20) is also wrapped
It includes:
Baffle (202) is rotatably mounted in the concave step that spiral cylinder (21) is equipped with, side and spiral cylinder (21)
Concave step vertical walls are close to, and there are spacing between the horizontal wall of the concave step of spiral cylinder (21)；With
Eccentric wheel (201), and baffle (202) integrally connected are arranged between baffle (202) and big end end cap (6) and and big end
End cap (6) inner top side has spacing；
Eccentric wheel (201) and baffle (202), big end end cap (6) are formed by space as sap cavity (204) are skimmed, and skim liquid mouth (203)
The side adjoining with the inner sidewall of rotary drum (1) in baffle (202) is set.
3. oilfield sump oil according to claim 2 handles centrifuge, which is characterized in that the slash liquid pipe (205) is bending
Shape pipeline skims liquid pipe (205) and is fixed together across big end end cap (6) with eccentric wheel (201), and one handle (206) is fixed in place
In slash liquid pipe (205) on the outside of big end end cap (6).
4. oilfield sump oil according to claim 1 handles centrifuge, which is characterized in that be arranged at the slag phase outlet (8)
There is the slag phase outlet regulator (50) for adjusting slag phase outlet (8) openings of sizes；The oil mutually exports at (9) and is provided with a row
Liquid regulating mechanism (30), the arrival end of drain regulating mechanism (30) is located in oil phase liquid face and the entrance of drain regulating mechanism (30)
The height at end is adjustable.
5. oilfield sump oil according to claim 4 handles centrifuge, which is characterized in that drain regulating mechanism (30) packet
An adjustable thread pipe (301) is included, adjustable thread pipe (301) is threadedly coupled with oily mutually outlet (9), and adjustable thread pipe (301) enter
Mouth end is located in oil phase liquid face.
6. oilfield sump oil according to claim 4 handles centrifuge, which is characterized in that the slag phase outlet regulator (50)
Flapper including covering slag phase outlet (8) a part and the adjusting nut for adjusting flapper, pass through adjusting nut
It adjusts the position of flapper and then adjusts the size of slag phase outlet (8).
7. oilfield sump oil according to any one of claims 1 to 6 handles centrifuge, which is characterized in that further include a deslagging
Auxiliary body (40), deslagging auxiliary body (40) is arranged on the barrel of spiral cylinder (21) at big end end cap (6), including sets
Set multiple auxiliary blades (402) on the disk (401) and welding disk on the barrel of spiral cylinder (21), auxiliary blade
(402) there are gap, multiple auxiliary blades between rotary drum (1) inner wall, adjoining spiral blade (22) and big end end cap (96)
(402) setting is arranged in parallel or is at an angle of between.
8. oilfield sump oil according to claim 7 handles centrifuge, which is characterized in that the inner wall of the rotary drum (1) and
Surfacing has hard alloy protective layer or is inlaid on the spiral cylinder (21) of screw input feeder (2) and the surface of helical blade (22)
Hard alloy wear plate.
9. oilfield sump oil according to claim 7 handles centrifuge, which is characterized in that the tapered zone of the rotary drum (1)
(11) side is provided with feed pipe (4), is equipped with a feed space (211) inside the spiral cylinder (21) of screw input feeder (2), should be into
Material room (211) is connected with feed pipe (4), and feed space (211) is by being arranged on the barrel of spiral cylinder (21) at least
One discharge port (212) is connected with settling tank (5).
10. oilfield sump oil according to claim 7 handles centrifuge, which is characterized in that the spiral shell of the screw input feeder (2)
There is gap between vane piece (22) and the inner wall of rotary drum (1), which is 1mm-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910316829.5A CN110142148A (en) | 2019-04-19 | 2019-04-19 | Centrifuge is used in a kind of processing of oilfield sump oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910316829.5A CN110142148A (en) | 2019-04-19 | 2019-04-19 | Centrifuge is used in a kind of processing of oilfield sump oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110142148A true CN110142148A (en) | 2019-08-20 |
Family
ID=67589726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910316829.5A Pending CN110142148A (en) | 2019-04-19 | 2019-04-19 | Centrifuge is used in a kind of processing of oilfield sump oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110142148A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403693A (en) * | 2019-08-23 | 2021-02-26 | 石小和 | Three-phase separator |
| CN117138977A (en) * | 2023-10-27 | 2023-12-01 | 河南中正石油起重机械有限公司 | Petroleum exploitation filtering centrifuge capable of achieving spiral unloading |
-
2019
- 2019-04-19 CN CN201910316829.5A patent/CN110142148A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403693A (en) * | 2019-08-23 | 2021-02-26 | 石小和 | Three-phase separator |
| CN117138977A (en) * | 2023-10-27 | 2023-12-01 | 河南中正石油起重机械有限公司 | Petroleum exploitation filtering centrifuge capable of achieving spiral unloading |
| CN117138977B (en) * | 2023-10-27 | 2024-01-16 | 河南中正石油起重机械有限公司 | Petroleum exploitation filtering centrifuge capable of achieving spiral unloading |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205838815U (en) | Skid-mounted oilfield oil sludge processing means | |
| CN102512857B (en) | Multistage integrated hydrodynamic cyclone separator | |
| CN110142148A (en) | Centrifuge is used in a kind of processing of oilfield sump oil | |
| CN104437834A (en) | Centrifugal ore-dressing device and ore-dressing method thereof | |
| CN106944241A (en) | A kind of hypergravity ore separators | |
| WO2007000113A1 (en) | A mineral element separating method and an apparatus therefor | |
| CN204320465U (en) | A kind of centrifugal separation device | |
| CN210304140U (en) | Centrifuge for processing oil field sump oil | |
| CN204447420U (en) | The concentrator that a kind of charging is adjustable | |
| CN206240642U (en) | A kind of continuous centrifugal separator | |
| CN108862466A (en) | A kind of device and method carrying out oily wastewater pre-separation based on axial eddy technology | |
| CN1033162A (en) | Spiral discharge sedimentation centrifuge | |
| US2753998A (en) | Method and apparatus for heavy-media separation | |
| CN201809199U (en) | Multifunctional oil, slag and water separator for hot rolling high oily wastewater treatment | |
| CN202570360U (en) | Novel centrifugal concentrator | |
| CN2038028U (en) | Helical discharge sedimentation-type centrifuge | |
| CN2808309Y (en) | Stratification ore concentrator | |
| CN1302854C (en) | Clear liquid disturbanceless spiral discharging settling centrifugal machine | |
| CN209333977U (en) | A kind of horizontal spiral discharge sedimentation centrifuge | |
| CN108067358B (en) | Oil-water-sand separation three-phase horizontal spiral centrifuge | |
| CN211339242U (en) | Oil-water-solid three-phase separation high-speed horizontal spiral sedimentation centrifuge | |
| CN204319847U (en) | A kind of concentrator feed control device | |
| CN201565362U (en) | Horizontal centrifuge | |
| CN103464307B (en) | A kind of can the horizontal centrifuge of efficient separating nanomaterials | |
| CN207786830U (en) | A kind of grease sand separation triphase horizontal screw centrifuge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |