CN112844880B - Shunting guide type inertia cyclone separator - Google Patents
Shunting guide type inertia cyclone separator Download PDFInfo
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- CN112844880B CN112844880B CN202011638291.9A CN202011638291A CN112844880B CN 112844880 B CN112844880 B CN 112844880B CN 202011638291 A CN202011638291 A CN 202011638291A CN 112844880 B CN112844880 B CN 112844880B
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- 238000004581 coalescence Methods 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 230000008859 change Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 50
- 239000007788 liquid Substances 0.000 abstract description 21
- 239000002245 particle Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 10
- 239000012530 fluid Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000006185 dispersion Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
- B04C3/06—Construction of inlets or outlets to the vortex chamber
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Abstract
A flow-dividing guide type inertial cyclone separator comprises a coalescence flow-dividing inlet and a cylinder body; the coalescence split-flow type inlet comprises a tangential inlet, a coalescence pipe, a flow guide body, a conversion pipe and a split-flow guide pipe; the barrel is formed by sequentially connecting a rotational flow section, a conical section and a bottom flow section which have the same central axis from top to bottom, the top axle center of the barrel is connected with an inner cone, and the center of the bottom flow section is provided with an overflow pipe. The invention can lead the continuous phase, the large-particle-size discrete phase and the small-particle-size discrete phase to be divided and layered under the inertia effect through the dividing guide type inlet, and lead three different streams of fluid to different positions in the cyclone through the inner layer guide plate and the outer layer guide plate to finely separate the different-particle-size discrete phases. The cyclone can realize higher separation efficiency on dispersed phases with different particle sizes, and has the outstanding advantages of small equipment volume, targeted shunting and guiding effect on liquid drops with different sizes, high-efficiency separation and the like.
Description
Technical Field
The invention relates to a split flow guide type inertia cyclone separator which is mainly applied to the fields of petroleum, chemical engineering, environmental protection and the like, in particular to a two-phase separation treatment technology.
Background
At present, the separation methods for two-phase immiscible media mainly comprise a gravity settling method, an electric field separation method, a chemical adsorption separation method, a filtration separation method and the like, and the cyclone separation technology is widely applied to a plurality of fields of petroleum, chemical engineering, environmental protection and the like due to high separation speed and small equipment. For the cyclone separation technology, the cyclone separation method is difficult to separate the dispersed phase with small size, the particle size distribution of the dispersed phase is one of the important factors determining the cyclone separation efficiency, in practical application, the phenomena of good separation effect of large-particle-size droplets and poor separation effect of small-particle-size droplets often occur, and the part of droplets with smaller particle size directly flow out from the continuous phase outlet along with the continuous phase without separation, thereby causing certain influence on the separation effect.
The invention patents of the cyclone separation system or the device, such as (CN 201310063840.8, CN201610184831.8, CN201610157839.5, CN201610126588.4, CN201620006971.1 and CN 201520974246.9) and the like, but the invention has the defect of poor effect of small-particle-size dispersion phase separation when liquid flow is separated, and the improvement of the separation efficiency of the cyclone is limited. If the efficient separation of the small-particle-size dispersion phase is to be realized, the small-particle-size droplets need to be guided to the center of the cyclone in the cyclone separation process, so that the centrifugal force applied to the small-particle-size dispersion phase is increased. Therefore, the research of the cyclone separator capable of improving the separation efficiency of the small-particle-size dispersed phase has great significance for petroleum, chemical industry and related industries.
Disclosure of Invention
In order to solve the technical problems mentioned in the background technology, the invention provides a diversion guide type inertia cyclone separator, which can make a continuous phase, a large-particle-size discrete phase and a small-particle-size discrete phase split under the inertia effect through a diversion guide type inlet, guide three different liquid flows to different positions in a cyclone through an inner layer guide plate and an outer layer guide plate, and finely separate the different-particle-size discrete phase and the continuous phase. The cyclone can realize high separation efficiency on dispersed phases with large and small particle sizes, and has the outstanding advantages of small equipment volume, pre-separation of treatment liquid, layered guiding of the particle sizes of liquid drops and the like.
The technical scheme of the invention is as follows:
the utility model provides a reposition of redundant personnel guiding inertia cyclone, includes coalescence reposition of redundant personnel formula entry, barrel, its characterized in that:
the coalescence flow-dividing type inlet consists of a tangential inlet, a coalescence pipe, a flow guide body, a conversion pipe and a flow-dividing guide pipe, wherein the coalescence pipe is a section of hollow cylinder, the tangential inlet is obliquely and tangentially connected to the outer wall of the coalescence pipe, one end of the coalescence pipe is closed, the inner wall of the other end of the coalescence pipe is connected with the flow guide body and is connected with the front end of the conversion pipe, the conversion pipe is a section of gradual change conversion pipe with a round front end and a rectangular rear end, the rear end of the conversion pipe is connected with the flow-dividing guide pipe, and the flow-dividing guide pipe is a 180-degree square bent pipe surrounding the cylinder; the flow guide body consists of at least 3 flow guide blades, and the flow guide blades are of a variable helix angle structure;
the cylinder body is formed by sequentially connecting a cyclone section, a cone section and an underflow section which have the same central axis from top to bottom, the cyclone section and the underflow section are hollow cylinders, the cone section is a hollow circular truncated cone with the upper end and the lower end not closed, the top of the cyclone section is connected with an inner cone, the inner cone and the cyclone section have the same axis, an overflow pipe is arranged at the center of the underflow section, the underflow section and the overflow pipe have the same axis, and an annular gap formed between the outer wall of the overflow pipe and the inner wall of the underflow section is an annular underflow opening;
the top of the cyclone section is sequentially connected with an outer-layer annular guide plate and an inner-layer annular guide plate, the outer-layer annular guide plate and the inner-layer annular guide plate are hollow cylinders, and an outer-layer conical guide plate and an inner-layer conical guide plate are connected below the outer-layer annular guide plate and the inner-layer annular guide plate respectively, and the outer-layer annular guide plate, the outer-layer conical guide plate, the inner-layer annular guide plate and the inner-layer conical guide plate divide the area between the cyclone section and the inner cone into an outer-layer separation area, a middle-layer separation area and an inner-layer separation area respectively;
the outer wall tangential access reposition of redundant personnel guiding tube of whirl section, whirl section top has connect outer curved guide board, the curved guide board of inlayer in proper order, outer curved guide board, the curved guide board of inlayer are tangent with inlayer annular guide board, outer annular guide board respectively, divide into outer, well, interior three-layer tangential entry with coalescence shunting entry.
The invention has the following beneficial effects:
1. the coalescence of the liquid drops can be realized by utilizing the inclined tangential inlet and the coalescence pipe, and partial small liquid drops are coalesced into large liquid drops to promote the subsequent separation of two phases;
2. the discrete phase and the continuous phase with different grain diameters can generate layered shunting under the inertia effect when passing through the shunting guide pipe and enter different separation spaces under the guide of the inner and outer layer guide plates to realize pre-separation;
3. small liquid drops difficult to separate are guided into the center of the cyclone, the centrifugal force borne by the small-particle-size liquid drops is increased, and the separation efficiency of small-particle-size dispersion phases is improved;
4. the overflow port and the underflow port discharge in the same direction, so that the cyclone only has rotary motion in one direction towards the bottom, and turbulence such as axial circulating flow is reduced;
5. the ideas of coalescence separation, inertia pre-separation and cyclone separation are combined, so that the liquid drops with different particle sizes in the treatment liquid are all provided with higher separation efficiency, and the overall efficiency of cyclone separation is improved;
6. can be used for separating two immiscible phases with density difference. The method can be applied to the fields of oil field and chemical production, municipal environmental protection and the like, and has considerable popularization and application prospects.
Description of the drawings:
fig. 1 is an overall schematic view of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
FIG. 3 is an isometric view of the present invention.
Fig. 4 is a diagram illustrating the coalescing principle of the coalescing tube of the present invention.
FIG. 5 is a schematic diagram of a coalescing bypass inlet layered bypass according to the present invention.
In the figure, 1-tangential inlet, 2-coalescence pipe, 3-flow guide body, 4-conversion pipe, 5-shunt guide pipe, 6-rotational flow section, 7-conical section, 8-bottom flow section, 9-overflow pipe, 10-annular bottom flow port, 11-inner cone, 12-outer annular guide plate, 13-inner annular guide plate, 14-outer conical guide plate, 15-inner conical guide plate, 16-outer curved guide plate, 17-inner curved guide plate, 18-coalescence shunt inlet and 19-cylinder.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings in which:
a split flow guided inertial cyclone separator comprising a coalescing split flow inlet 18, a barrel 19, characterized in that:
the coalescence split-flow type inlet 18 consists of an inclined tangential inlet 1, a coalescence pipe 2, a flow guide body 3, a conversion pipe 4 and a split-flow guide pipe 5, the coalescence pipe 2 is a section of hollow cylinder, a tangential inlet 1 is obliquely and tangentially connected to the outer wall of the coalescence pipe 2, the obliquely connected tangential inlet can enable fluid to generate tangential velocity in the coalescence pipe 2, so that oil drops are subjected to rotating coalescence, and the tangential inlet is inclined, so that a part of tangential force can be shared in the axial direction, the flow field disorder caused by overlarge tangential speed is avoided, one end of the coalescence pipe 2 is closed, the inner wall of the other end of the coalescence pipe is connected with a flow guide body 3, and is connected with the front end of the conversion tube 4, the conversion tube 4 is a section of gradual conversion tube with a round front end and a rectangular back end, the rear end of the conversion pipe 4 is connected with a diversion guide pipe 5, and the diversion guide pipe is a 180-degree square elbow surrounding the cylinder 19; the flow guide body 3 is composed of at least 3 flow guide blades, the flow guide blades are of a variable helix angle structure, and the flow guide body plays a despinning role and converts rotary motion in the coalescence pipe into linear motion;
the cylinder 19 is formed by sequentially connecting a cyclone section 6, a cone section 7 and an underflow section 8 which have the same central axis from top to bottom, the cyclone section 6 and the underflow section 8 are hollow cylindrical structures, the cone section 7 is a hollow round platform structure with the upper end and the lower end not closed, the top of the cyclone section is connected with an inner cone 11, the inner cone 11 and the cyclone section 6 have the same axis, the inner cone at the top can enable small-particle-size liquid drops to gather near the inner cone and move downwards along the inner cone, so that the small-particle-size liquid drops are gradually transported to the center of the cyclone, an overflow pipe 9 is arranged at the center of the underflow section 8, the underflow section 8 and the overflow pipe 9 have the same axis, an annular gap formed between the outer wall of the overflow pipe 9 and the inner wall of the underflow section 8 is an annular underflow opening 10, and dispersed phases and discrete phases flow in the same direction, so as to reduce the turbulence inside of the cyclone;
the top of the cyclone section 6 is sequentially connected with an outer annular guide plate 12 and an inner annular guide plate 13, the outer annular guide plate 12 and the inner annular guide plate 13 are hollow cylinders, the lower parts of the outer annular guide plate 12 and the inner annular guide plate are respectively connected with an outer conical guide plate 14 and an inner conical guide plate 15, the outer conical guide plate 14 and the inner conical guide plate 15 are hollow cones, the outer annular guide plate, the outer conical guide plate, the inner conical guide plate, the outer conical guide plate, the inner annular guide plate and the inner conical guide plate respectively divide the area between the cyclone section and the inner cone into an outer layer separation area, a middle layer separation area and an inner layer separation area, and the outer layer separation area, the middle layer separation area and the inner layer separation area correspond to a continuous phase re-separation area, a large-particle-diameter liquid drop separation area and a small-particle-diameter liquid drop fine separation area;
the outer wall tangential access reposition of redundant personnel guiding tube 5 of whirl section 6, whirl section top has connect gradually outer curved shape guide board 16, the curved shape guide board 17 of inlayer, outer curved shape guide board 16, the curved shape guide board 17 of inlayer are tangent with inlayer annular guide board 13, outer annular guide board 12 respectively, divide into outer, well, interior three-layer tangential entry with coalescence shunting entry, can realize through three-layer tangential entry that processing liquid preseparation.
The working process of the device is as follows:
taking oil-water two-phase mixed medium as an example, oil-water mixed liquid enters a coalescence pipe through an inclined tangential inlet and starts to rotate, in the process, the collision probability among oil drops can be increased, the oil drops with small particle sizes are coalesced into oil drops with large particle sizes, the coalesced oil-water mixed liquid passes through a flow guide body and is converted into linear motion through a conversion pipe and then enters a diversion guide pipe, oil drops with different particle sizes and water phases pass through the diversion guide pipe, due to different self masses, the oil drops and the water phases are subjected to different inertia forces, the inertia can enable the body to have the tendency of keeping the original motion state, so that the water phase with the largest inertia effect has the largest tendency of keeping the original linear motion state and is thrown to the outer side of the diversion guide pipe, the oil drops with small particle sizes and the smallest inertia effect are mainly concentrated to the inner side of the diversion guide pipe, the oil drops with large particle sizes are positioned between the oil drops, and three layers of fluid separated by the inner and outer curved guide plates respectively enter the outer layers of the inner and outer layers of the fluid and are respectively and initially, The middle and inner three layers of tangential inlets finish the pre-separation of the treatment liquid.
The small-particle diameter oil that the inlayer tangential entry was dropped and gets into the inlayer separation region under the guide of inlayer annular guide board and inlayer toper guide board, and the regional diameter of inlayer separation is less, can increase the centrifugal force that the small-particle diameter oil dropped and receives, makes the small-particle diameter oil drop along interior cone downstream, makes the small-particle diameter liquid drop migrate gradually to the center of swirler, finally flows by the bottom overflow pipe.
The large-particle-diameter oil drops in the middle-layer tangential inlet enter a middle-layer separation area positioned in the cyclone section under the guidance of the outer-layer annular guide plate and the outer-layer conical guide plate, the large-particle-diameter oil drops are mainly concentrated near the inner-layer conical guide plate under the action of centrifugal force and finally are converged with the small-particle-diameter oil drops to flow out through a bottom overflow pipe, and a small part of water phase entering the middle-layer separation area is separated to the outer side at the conical section and converged with the outer-layer water phase to flow out through an annular bottom flow port.
The main part of the outer tangential inlet is water phase, but also contains part of oil phase, the part of fluid is guided into the outer separation space, the fluid in the outer separation space is further separated in the cyclone, the oil phase with lower density gradually moves to the center of the cyclone under the action of centrifugal force, joins with oil drops in the middle layer and the inner layer and enters into the overflow pipe, the water phase with higher density is thrown at the side wall of the cyclone, and finally joins with the water phase separated from the middle layer and flows out from the annular underflow port.
Claims (1)
1. A split flow guided inertial cyclone separator comprising a coalescing split flow inlet (18), a cartridge (19), characterized in that:
the coalescence flow-dividing type inlet (18) is composed of a tangential inlet (1), a coalescence pipe (2), a flow guide body (3), a conversion pipe (4) and a flow-dividing guide pipe (5), wherein the coalescence pipe (2) is a section of hollow cylinder, the tangential inlet (1) is obliquely connected into the outer wall of the coalescence pipe (2), one end of the coalescence pipe (2) is closed, the inner wall of the other end of the coalescence pipe is connected with the flow guide body (3) and is connected with the front end of the conversion pipe (4), the conversion pipe (4) is a section of gradual change conversion pipe with a round front end and a rectangular rear end, the rear end of the conversion pipe (4) is connected with the flow-dividing guide pipe (5), and the flow-dividing guide pipe is a 180-degree square bent pipe; the flow guide body (3) consists of at least 3 flow guide blades, and the flow guide blades are of a variable helix angle structure;
the cylinder body (19) is formed by sequentially connecting a cyclone section (6), a conical section (7) and an underflow section (8) which have the same central axis from top to bottom, the cyclone section (6) and the underflow section (8) are hollow cylinders, the conical section (7) is a hollow circular truncated cone with the upper end and the lower end not closed, the top of the cyclone section is connected with an inner cone (11), the inner cone (11) and the cyclone section (6) have the same axis, the center of the underflow section (8) is provided with an overflow pipe (9), the underflow section (8) and the overflow pipe (9) have the same axis, and an annular gap formed between the outer wall of the overflow pipe (9) and the inner wall of the underflow section (8) is an annular underflow opening (10);
the top of the cyclone section (6) is sequentially connected with an outer-layer annular guide plate (12) and an inner-layer annular guide plate (13), the outer-layer annular guide plate (12) and the inner-layer annular guide plate (13) are hollow cylinders, the lower parts of the outer-layer annular guide plate (12) and the inner-layer annular guide plate (13) are respectively connected with an outer-layer conical guide plate (14) and an inner-layer conical guide plate (15), the outer-layer conical guide plate (14) and the inner-layer conical guide plate (15) are hollow round table bodies, and the outer-layer annular guide plate, the outer-layer conical guide plate, the inner-layer annular guide plate and the inner-layer conical guide plate respectively divide the area between the cyclone section and the inner cone into an outer-layer separating area, a middle-layer separating area and an inner-layer separating area;
the outer wall tangential access reposition of redundant personnel guiding tube (5) of whirl section (6), whirl section top has connect outer curved guide board (16), the curved guide board of inlayer (17) in proper order, outer curved guide board (16), the curved guide board of inlayer (17) are tangent with inlayer annular guide board (13), outer annular guide board (12) respectively, divide into outer, middle, interior three-layer tangential entry with coalescence shunting entry.
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| CN202011638291.9A CN112844880B (en) | 2020-12-31 | 2020-12-31 | Shunting guide type inertia cyclone separator |
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| CN202011638291.9A CN112844880B (en) | 2020-12-31 | 2020-12-31 | Shunting guide type inertia cyclone separator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4964994A (en) * | 1989-03-21 | 1990-10-23 | Amoco Corporation | Hydrocyclone separator |
| CN102886316A (en) * | 2012-09-18 | 2013-01-23 | 东北石油大学 | Hydrocyclone used for three-phase medium separation |
| CN203355909U (en) * | 2013-04-15 | 2013-12-25 | 武汉工程大学 | Oil, water and gas three-phase cyclone separator |
| CN203874919U (en) * | 2014-05-13 | 2014-10-15 | 武汉工程大学 | Multistage oil-water cyclone separator |
| CN109290075A (en) * | 2018-08-30 | 2019-02-01 | 东北石油大学 | Hydrocyclone separation technology device based on partial size selection |
| CN110280403A (en) * | 2019-06-15 | 2019-09-27 | 沈阳环境科学研究院 | A kind of grain size grading coagulation type cyclone |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2892953B1 (en) * | 2005-11-09 | 2008-06-27 | Saipem S A Sa | METHOD AND DEVICE FOR SEPARATING POLYPHASE LIQUID |
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2020
- 2020-12-31 CN CN202011638291.9A patent/CN112844880B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4964994A (en) * | 1989-03-21 | 1990-10-23 | Amoco Corporation | Hydrocyclone separator |
| CN102886316A (en) * | 2012-09-18 | 2013-01-23 | 东北石油大学 | Hydrocyclone used for three-phase medium separation |
| CN203355909U (en) * | 2013-04-15 | 2013-12-25 | 武汉工程大学 | Oil, water and gas three-phase cyclone separator |
| CN203874919U (en) * | 2014-05-13 | 2014-10-15 | 武汉工程大学 | Multistage oil-water cyclone separator |
| CN109290075A (en) * | 2018-08-30 | 2019-02-01 | 东北石油大学 | Hydrocyclone separation technology device based on partial size selection |
| CN110280403A (en) * | 2019-06-15 | 2019-09-27 | 沈阳环境科学研究院 | A kind of grain size grading coagulation type cyclone |
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