CN113617544B - Automatic shunting cyclone separation device - Google Patents
Automatic shunting cyclone separation device Download PDFInfo
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- CN113617544B CN113617544B CN202110911214.4A CN202110911214A CN113617544B CN 113617544 B CN113617544 B CN 113617544B CN 202110911214 A CN202110911214 A CN 202110911214A CN 113617544 B CN113617544 B CN 113617544B
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- 238000000926 separation method Methods 0.000 title claims abstract description 77
- 239000007788 liquid Substances 0.000 claims abstract description 87
- 238000007667 floating Methods 0.000 claims abstract description 60
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 22
- 239000000725 suspension Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 54
- 238000003466 welding Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 27
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 8
- 235000017491 Bambusa tulda Nutrition 0.000 description 8
- 241001330002 Bambuseae Species 0.000 description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 8
- 239000011425 bamboo Substances 0.000 description 8
- 235000019198 oils Nutrition 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 235000019476 oil-water mixture Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 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
- B04C7/00—Apparatus not provided for in group B04C1/00, B04C3/00, or B04C5/00; Multiple arrangements not provided for in one of the groups B04C1/00, B04C3/00, or B04C5/00; Combinations of apparatus covered by two or more of the groups B04C1/00, B04C3/00, or B04C5/00
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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
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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
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
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Abstract
An automatic flow-dividing cyclone separator. The method is characterized in that: a primary floating type spiral flow passage separation unit and a secondary embedded type spiral flow passage separation unit are arranged in the separation device, when the liquid inlet quantity is small, an array liquid inlet hole in the secondary embedded type spiral flow passage separation unit is shielded by the floating type spiral flow passage, and all oil-water mixed phases enter the floating type spiral flow passage through the side liquid inlet hole; when the liquid inlet amount is large, the floating type spiral flow channel compression pressure stabilizing spring axially moves in the cone diversion cavity, the array liquid inlet hole in the second-stage embedded spiral flow channel separation unit is exposed, part of oil-water mixed phase laterally enters the second-stage embedded spiral flow channel separation unit through the array liquid inlet hole in the inner wall of the floating type spiral flow channel and is discharged through the flow channel suspension type overflow pipe, and the water phase is discharged through the spiral gradually-expanding type outlet pipe. The device solves the problem of low separation efficiency caused by the fact that the treatment capacity cannot be stabilized under the working condition that the liquid inlet amount suddenly changes, and enhances the applicability of the cyclone separation device to the working condition.
Description
Technical Field
The invention relates to a cyclone oil-water separation device which is applied to automatic flow distribution under the working condition of variable liquid inlet amount in the fields of petroleum, chemical engineering, environmental protection and the like.
Background
With the continuous development and innovation of the cyclone technology, the cyclone has the advantages of simple structure, high separation efficiency, simple process and the like, and is successfully applied to underground oil-water separation as oil-water separation equipment. However, the related performance of the hydrocyclone is greatly influenced by the structure of the hydrocyclone, once the structure of the hydrocyclone is determined, the application range of the treatment capacity of the optimal separation efficiency is determined to be unchanged, so that the treatment capacity cannot be changed along with different working conditions under the influence of complex underground working conditions and large liquid inlet quantity change, and the separation effect of the underground oil-water separation hydrocyclone is always restricted. In the process of actual use, the cyclone can only be replaced to adapt to the working conditions of different liquid inlet quantities, under the condition, the cost is high, the operation process is complex, and the problems are difficult to find in time, so that in the actual application process, the treatment capacity is often too large to exceed the application range of the cyclone, the separation efficiency is low, and the application of the cyclone is limited.
Disclosure of Invention
In order to solve the technical problems mentioned in the background technology, the invention provides an automatic flow-splitting type cyclone separation device, which automatically splits flow through the floating of a floating type spiral flow passage, can automatically adjust the floating range of the floating type spiral flow passage according to the size of liquid inlet quantity, and autonomously splits and enters a second-stage array liquid inlet hole shielded by the inner wall of the floating type spiral flow passage for second-stage separation, so that the application range of the treatment capacity is expanded, the influence of poor self-adaption or low separation efficiency of the separation device under the working condition of disordered liquid inlet quantity is eliminated, the application range of the treatment capacity is expanded, and the applicability of the cyclone separation device to different liquid inlet quantity conditions is enhanced.
The technical scheme of the invention is as follows: the automatic flow-splitting cyclone separator is provided with a primary floating type spiral flow passage separation unit and a secondary embedded type spiral flow passage separation unit. The unique characteristics are as follows:
the primary floating type spiral flow passage separation unit comprises a limiting liquid inlet cylinder 1, a cone diversion cavity 2, a floating type spiral flow passage 3, a pressure stabilizing spring 4 and a primary sealing disc 5; spacing 1 major structure of liquid inlet tube has one-level connecting hole 101, runner spacing ring 10, barrel end flange 11, lateral direction feed liquor inlet tube 12, it has lateral direction feed liquor hole 1201 to open on the lateral direction feed liquor inlet tube 12, one- level connecting hole 101 and 5 threaded connection of one-level sealed dish, spacing 1 export end face welding barrel end flange 11 of liquid inlet tube can be connected with chamber end flange 13, runner spacing ring 10 welds at 11 inboards of barrel end flange and rather than equal height and keep the bottom flush, lateral direction feed liquor hole 1201 feed liquor velocity direction is tangent with spacing 1 inner wall of liquid inlet tube, lateral direction feed liquor hole 1201 end face welding flange can be connected with external pipeline, lateral direction inlet tube feed liquor 12 and spacing 1 outer wall welded connection of liquid inlet tube.
The cone diversion cavity 2 mainly comprises a cavity end flange 13, a column section cavity 14, a cone section cavity 15, a cavity bottom flow guide pipe 16, a spring support ring 17, a same-direction outflow type overflow pipe 18 and a same-direction side flow type outlet pipe 19, wherein the cavity end flange 13 is welded on the inlet end face of the cone diversion cavity 2, the column section cavity 14, the cone section cavity 15 and the cavity bottom flow guide pipe 16 are coaxial and are sequentially welded, the spring support ring 17 is welded on the inner side of the column section cavity 14 and is axially close to the cone section cavity 15, the same-direction outflow type overflow pipe 18 axially penetrates through the whole cavity bottom flow guide pipe 16, a same-direction outflow type overflow pipe 18 outlet end face welding flange is connected with an external pipeline, and the same-direction side flow type outlet pipe 19 can be connected with the external pipeline, and the same-direction side flow type outlet pipe 19 is welded with the outer wall face of the cavity bottom flow guide pipe 16.
The floating spiral flow passage 3 consists of five spiral flow passages, is in clearance contact with the inner side of the cone diversion cavity 2 and the outer wall of the tangential rotational flow barrel 6 and is positioned above the pressure stabilizing spring 4; the pressure stabilizing spring 4 is positioned on the spring support ring 17 and is in clearance contact with the inner side of the cone diversion cavity 2; the 5 central trompils of one-level sealed dish, the outside is opened threaded and is advanced the one-level connecting hole 101 threaded connection on the liquid section of thick bamboo 1 with spacing, 5 inboard inlayed one-level sealing washer 20 and the interference of tangential whirl section of thick bamboo 6 and is connected of one-level sealing washer.
The secondary embedded spiral flow channel separation unit comprises a tangential cyclone cylinder 6, a flow channel suspension type overflow conduit 7, an embedded spiral flow channel 8 and a secondary sealing disc 9; the tangential cyclone tube 6 mainly comprises a column section tube body 21, a conical section tube body 22, a tube body underflow conduit 23 and a spiral gradually-expanding outlet tube 24, wherein the top end of the column section tube body 21 is provided with partial threads which are in threaded connection with the secondary sealing disk 9, the column section tube body 21, the conical section tube body 22 and the tube body underflow conduit 23 are coaxial and are sequentially welded and connected, the tangential cyclone tube 6 surface is distributed on the circumference of 10 columns of arrayed liquid inlet holes 601, each column is provided with 5 arrayed liquid inlet holes 601, and the spiral gradually-expanding outlet tube 24 is welded and connected with the tube body underflow conduit 23, and the rotating direction of the spiral gradually-expanding outlet tube is consistent with the rotating direction of the floating spiral flow channel 3. Two sections of threads are arranged on the outer surface of the flow channel suspension type overflow conduit 7 and are respectively in threaded connection with the secondary sealing disc 9 and the embedded spiral flow channel 8, and a through hole penetrating through the whole is formed in the center of the flow channel suspension type overflow conduit 7.
The inner wall of the embedded spiral flow channel 8 is provided with threads and is in threaded connection with the outer wall of the flow channel suspended overflow conduit 7, the embedded spiral flow channel 8 consists of 5 flow channels, the rotating direction of the embedded spiral flow channel 8 is consistent with that of the floating spiral flow channel 3 and the spiral gradually-expanding outlet pipe 24, and a steady flow inverted cone 25 is welded at the bottom of the embedded spiral flow channel 8; the center of the secondary sealing disk 9 is provided with a hole, the outer side of the secondary sealing disk is provided with partial threads which are in threaded connection with the top of the tangential cyclone cylinder 6, the secondary sealing disk 9 is embedded with a secondary sealing ring 901, and the secondary sealing ring 901 is in interference connection with the flow channel suspension type overflow conduit 7.
The invention has the following beneficial effects: the invention can automatically adjust the relative axial position of the floating type spiral flow passage according to the liquid inlet quantity, when the pressure of the liquid inlet quantity is small, the compression amplitude of the pressure stabilizing spring is small, the floating type spiral flow passage completely shields the liquid inlet holes of the array, and the separation is completely finished in the primary separation unit; when the liquid inlet volume pressure is large, the floating spiral flow channel automatically compresses the pressure stabilizing spring, the compression amplitude of the pressure stabilizing spring is large, the array liquid inlet hole is partially or completely exposed, and the mixed phase automatically flows into the array liquid inlet hole in a shunting manner to perform secondary separation. The device performs cyclone separation by using the density difference between oil phase and water phase, and effectively regulates and controls the liquid inlet quantity, thereby achieving the optimal separation performance under the working condition.
The following is a detailed description:
firstly, the cyclone has innovativeness in structure, the primary separation unit adopts a floating spiral flow channel, primary separation and double-stage separation can be automatically selected according to the size of liquid inlet quantity, the application range of treatment capacity is expanded, and the cyclone has a real-time regulation function in the running process and is more automatic.
Secondly, the direction of rotation of a secondary spiral gradually-expanding outlet pipe in the device is consistent with the direction of the speed of liquid coming from the primary side liquid inlet of the primary floating spiral flow channel and the secondary embedded spiral flow channel, and unnecessary resistance to a rotary flow field caused by a component mounting mode is reduced.
And thirdly, the device has simple structure, is convenient to manufacture and has small damage to the pipe wall. The lateral liquid inlet pipe and the same-direction lateral liquid outlet pipe of the device are both positioned on one end surface, and unnecessary pipeline connection is reduced due to reasonable arrangement of outlets at all levels.
And finally, the two stages are sealed by adopting the sealing rings, so that the sealing performance of the device is further enhanced, and the stable operation of the device and the optimal separation efficiency are better kept.
In conclusion, the automatic flow-dividing type cyclone separation device provided by the invention can automatically adjust the axial position of the floating type spiral flow channel according to the floating range of the floating type spiral flow channel, when the liquid inlet quantity is increased rapidly, part of mixed phases are uniformly distributed in the two-stage embedded spiral flow channel separation unit, the first-stage floating type spiral flow channel separation unit and the second-stage embedded spiral flow channel separation unit simultaneously carry out oil-water cyclone separation, the application range of the treatment quantity is enlarged, automatic flow division is realized, the separation efficiency is high, the treatment process is simple, and the influence of low self-adaptive differential separation efficiency of the separation device under the complex working condition of large change of the liquid inlet quantity is eliminated.
Description of the drawings:
fig. 1 is an overall appearance diagram of an automatic flow-splitting cyclone separation device.
Fig. 2 is a sectional view of an automatic flow-splitting cyclone separator.
Fig. 3 is an overall exploded view of an automatic split-flow cyclone separator.
Fig. 4 is a diagram of the position relationship between the primary floating spiral flow channel and the pressure stabilizing spring.
Fig. 5 is an assembly view of the primary floating spiral flow channel separation unit.
FIG. 6 is a cross-sectional view of a primary seal disk.
Fig. 7 is a structural view of a limiting liquid inlet cylinder.
Fig. 8 is an overall view of the cone diversion cavity.
Fig. 9 is an assembly view of a limiting liquid inlet cylinder and a cone diversion cavity.
FIG. 10 is a view of the floating spiral flow channel.
Fig. 11 is a cross-sectional view of a two-stage inline spiral flow channel separation unit.
Fig. 12 is an exploded view of the two-stage embedded spiral flow channel separation unit.
FIG. 13 is a cross-sectional view of a secondary seal disk.
FIG. 14 is a view of a tangential cyclone cartridge.
Fig. 15 is a view of the structure of a flow channel suspended overflow conduit.
Figure 16 is a cross-sectional view of an inline spiral flow channel.
Figure 17 is an assembly view of a flow-suspended overflow conduit and an embedded spiral flow channel.
Fig. 18 is a schematic view of the working principle of low liquid inlet amount.
Fig. 19 is a schematic view of the working principle of high liquid inlet amount.
FIG. 1-Limited intake barrel; 101-first level connecting hole; 2-a cone diversion cavity; 3-floating spiral flow channel; 4-a pressure stabilizing spring; 5-first-grade sealing disc; 6-tangential cyclone cylinder; 601-liquid inlet holes arrayed; 7-flow channel suspended overflow conduit; 8-embedded spiral flow channel; 9-secondary sealing disk; 901-secondary sealing ring; 10-a flow passage limiting ring; 11-barrel end flange; 12-a lateral liquid inlet pipe; 1201-lateral liquid inlet hole; 13-a cavity end flange; 14-column section cavity; 15-a tapered cavity; 16-a chamber underflow conduit; 17-a spring support ring; 18-a co-current outflow overflow; 19-co-current side-flow outlet pipe; 20-a primary sealing ring; 21-column section cylinder; 22-a cone section cylinder; 23-barrel underflow conduit; 24-a spiral divergent outlet pipe; 25-steady flow inverted cone.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings in which:
the automatic flow-dividing cyclonic separator has one first-stage floating spiral flow channel separating unit and one second-stage embedded spiral flow channel separating unit.
The primary floating type spiral flow passage separation unit comprises a limiting liquid inlet cylinder, a cone diversion cavity, a floating type spiral flow passage, a pressure stabilizing spring and a primary sealing disc; spacing feed liquor section of thick bamboo primary structure has the one-level connecting hole, spacing feed liquor section of thick bamboo export, the runner spacing ring, barrel head flange, lateral direction feed liquor hole and lateral direction feed liquor inlet pipe, one-level connecting hole and one-level sealed dish threaded connection, spacing feed liquor section of thick bamboo export terminal surface welding barrel head flange can with chamber end flange joint, the welding of runner spacing ring just keeps the bottom flush at barrel head flange inboard and rather than equal height, lateral direction feed liquor hole feed liquor velocity direction is tangent with spacing feed liquor section of thick bamboo inner wall, lateral direction feed liquor hole terminal surface welding flange can with external tube coupling, lateral direction feed liquor inlet pipe and spacing feed liquor section of thick bamboo outer wall welded connection.
The main structure of the cone diversion cavity is provided with a cavity end flange, a column section cavity, a cone section cavity, a cavity bottom flow guide pipe, a spring support ring, a same-direction outflow type overflow pipe and a same-direction side flow type bottom flow pipe, wherein the cavity end flange is welded on the inlet end face of the cone diversion cavity, the column section cavity, the cone section cavity and the cavity bottom flow guide pipe are coaxial and sequentially welded, the spring support ring is welded on the inner side of the column section cavity and axially close to the cone section cavity, the same-direction outflow type overflow pipe axially penetrates through the whole cavity bottom flow guide pipe, a same-direction outflow type overflow pipe outlet end face welding flange is connected with an external pipeline, the same-direction side flow type bottom flow pipe outlet end face welding flange can be connected with the external pipeline, and the same-direction side flow type bottom flow pipe is welded and connected with the outer wall face of the cavity bottom flow guide pipe; the floating spiral flow passage consists of five spiral flow passages, is in clearance contact with the inner side of the cone diversion cavity and the outer wall of the tangential rotational flow cylinder and is positioned above the pressure stabilizing spring; the pressure stabilizing spring is positioned on the spring limiting ring and is in clearance contact with the inner side of the cone diversion cavity; the central trompil of one-level sealed dish, the outside is opened threaded and is inlayed one-level sealing washer and tangential cyclone tube interference connection with one-level connecting hole threaded connection, one-level sealed dish inboard on the spacing feed liquor section of thick bamboo.
The secondary embedded spiral flow channel separation unit comprises a tangential cyclone cylinder, a flow channel suspension type overflow conduit, an embedded spiral flow channel and a secondary sealing disc; the tangential cyclone cylinder is mainly structurally provided with a column section cylinder body, a cone section cylinder body, a cylinder body underflow conduit and a spiral gradually-expanding outlet pipe, wherein part of threads are formed at the top end of the column section cylinder body and are in threaded connection with a secondary sealing disk, the column section cylinder body, the cone section cylinder body and the cylinder body underflow conduit are coaxial and are sequentially welded and connected, the surface of the tangential cyclone cylinder is distributed on the circumference of 10 rows of liquid inlet holes, each row is provided with 5 liquid inlet holes, the spiral gradually-expanding outlet pipe is welded and connected with a cylinder body underflow pipe, and the rotation direction of the spiral gradually-expanding outlet pipe is consistent with the rotation direction of a floating spiral runner; two sections of threads are formed on the outer surface of the suspension type overflow conduit and are respectively in threaded connection with the secondary sealing disc and the embedded spiral flow channel, and a through hole is formed in the center of the suspension type overflow conduit and penetrates through the whole.
The inner wall of the embedded spiral runner is provided with threads, the threads are connected with the outer wall of the suspended overflow conduit through threads, the embedded spiral runner is composed of 5 runners, the rotating direction of the embedded spiral runner is consistent with that of the floating spiral runner and the spiral gradually-expanding outlet pipe, and the steady flow inverted cone is welded at the bottom of the embedded spiral runner; the center of the secondary sealing disk is provided with a hole, the outer side of the secondary sealing disk is provided with a part of threads, the threads of the top of the tangential cyclone cylinder are connected, and a secondary sealing ring and a suspension type overflow interference connection are embedded in the secondary sealing disk.
The integral appearance of the automatic shunting type cyclone separation device is shown in figure 1, an oil-water mixed phase enters a limiting liquid inlet cylinder 1 from a lateral liquid inlet pipe 12, after being separated by a primary floating type spiral flow channel unit, an oil phase flows out from a cocurrent outflow type overflow pipe 18, a water phase flows out from a cocurrent lateral flow type outlet pipe 19, after being separated by a secondary embedded type spiral flow channel unit, the oil phase flows out from a flow channel suspension type overflow conduit 7, and the water phase flows out from a spiral gradually expanding type outlet pipe 24 and then is converged with water in a cone diversion cavity 2 together to flow out from the cocurrent lateral flow type outlet pipe 19.
The cross-sectional view of the automatic flow-splitting cyclonic separating apparatus is shown in figure 2. The integral explosion diagram of the automatic shunting type cyclone separation device is shown in figure 3 and mainly comprises a limiting liquid inlet cylinder 1, a cone diversion cavity 2, a floating type spiral flow passage 3, a pressure stabilizing spring 4, a primary sealing disc 5, a tangential cyclone cylinder 6, a flow passage suspension type overflow guide pipe 7, an embedded type spiral flow passage 8 and a secondary sealing disc 9. FIG. 4 is a diagram showing the positional relationship between the floating spiral flow passage and the pressure stabilizing spring. FIG. 5 is an assembly diagram of a primary floating type spiral flow passage separation unit, a partial screw thread is arranged on the side wall surface of a primary sealing disc 5 and is in threaded connection with a primary connecting hole 101 on a limiting liquid inlet cylinder 1, the limiting liquid inlet cylinder 1 and a cone diversion cavity 2 are in threaded connection through a cylinder end flange 11 and a cavity end flange 13, an oil-water mixed phase flows to the cone diversion cavity 2 from the limiting liquid inlet cylinder 1 through a floating type spiral flow passage 3, the density of an oil phase is smaller than that of a water phase, the light oil phase is gathered at the axial center position of the cone diversion cavity 2 and flows out through a cocurrent outflow type overflow pipe 18 under the action of strong centrifugal force, and the water phase surrounds the area near the inner wall of the cone diversion cavity 2 and flows out through a cocurrent side outflow type outlet pipe 19. Fig. 6 is a sectional view of the primary seal disk, a primary seal ring 20 is embedded in the axis of the inner side of the primary seal disk 5, the primary seal ring 20 is in interference connection with the tangential cyclone cylinder 6, and the primary seal ring 20 can prevent oil-water mixture from flowing out from the gap between the primary seal disk 5 and the tangential cyclone cylinder 6. Fig. 7 is a structure diagram of a spacing liquid inlet cylinder, the main structure of the spacing liquid inlet cylinder 1 is provided with a flow channel spacing ring 10, a cylinder end flange 11 and a lateral liquid inlet pipe 12, a first-stage connecting hole 101 on the spacing liquid inlet cylinder 1 is provided with threads and is in threaded connection with a first-stage sealing disc 5, the flow channel spacing ring 10 is welded on the inner side of the cylinder end flange 11 and is flush with the bottom of the cylinder end flange, a lateral liquid inlet hole 1201 is formed in the lateral liquid inlet pipe 12, and the liquid inlet speed direction of the lateral liquid inlet hole 1201 is tangent to the inner wall of the spacing liquid inlet cylinder 1, so that the initial tangential speed of mixed phases can be increased. Fig. 8 is an overall view of a cone diversion cavity, the main structure of the cone diversion cavity 2 includes a cavity end flange 13, a column section cavity 14, a cone section cavity 15, a cavity underflow guide pipe 16, a spring support ring 17, a cocurrent outflow overflow pipe 18 and a cocurrent side flow outlet pipe 19, the cavity end flange 13 is welded on the inlet end face of the cone diversion cavity 2, the spring support ring 17 is welded on the inner side of the column section cavity 14, the floating spiral runner 3 moves downwards under the pressure of an oil-water mixed phase to compress the pressure stabilizing spring 4, the pressure stabilizing spring 4 can be compressed or reduced under the support of the spring support ring 17, the runner limit ring 10 can limit the spiral runner to move upwards, and the device can be prevented from being damaged by overlarge collision due to overlarge flow velocity. Fig. 9 is an assembly view of a limiting liquid inlet cylinder and a cone diversion cavity. Fig. 10 is a structure diagram of the floating spiral flow passage, the floating spiral flow passage 3 is composed of five spiral flow passages, the floating spiral flow passage 3 is in clearance contact with the inner side of the cone diversion cavity 2 and the outer wall of the tangential cyclone cylinder 6 and is positioned above the pressure stabilizing spring 4, and the floating spiral flow passage 3 can generate the phenomenon of axial migration in the cone diversion cavity under the change of the handling capacity so as to control the opening and closing of the secondary embedded spiral flow passage separation unit.
FIG. 11 is a cross-sectional view of a two-stage inline spiral flow channel separation unit. Fig. 12 is an overall explosion diagram of a secondary embedded spiral flow channel separation unit, the secondary separation unit mainly comprises a tangential cyclone tube 6, a flow channel suspended overflow conduit 7, an embedded spiral flow channel 8 and a secondary sealing disc 9, after an oil-water mixed phase is compressed and floated in the spiral flow channel 3, the oil-water mixed phase flows into the tangential cyclone tube 6 from an array liquid inlet hole 601, flows into a cone section cylinder 22 through the embedded spiral flow channel 8 for separation, the water phase flows out from a spiral gradually-expanding outlet pipe 24 and converges into the water phase of the primary separation unit, and is discharged from a cocurrent lateral flow outlet pipe 19, and the oil phase is discharged from the flow channel suspended overflow conduit 7. Fig. 13 is a cross-sectional view of the secondary sealing disk, the secondary sealing disk 9 has a hole in the center, a partial thread is formed on the inner side of the secondary sealing disk and is fixedly connected with the flow channel suspended overflow conduit 7 by a thread, a partial thread is formed on the outer side of the secondary sealing disk and is connected with the tangential cyclone tube 6 by a thread, a secondary sealing ring 901 is embedded in the axis of the secondary sealing disk 9, and the secondary sealing ring 901 is in interference connection with the flow channel suspended overflow conduit 7. Fig. 14 is a structure diagram of a tangential cyclone cylinder, 10 rows of liquid inlet holes 601 are circumferentially distributed on the surface of a cylinder body 21 of a column section, each row is provided with 5 liquid inlet holes 601, a spiral divergent outlet pipe 24 is connected with a cylinder body underflow conduit 23 in a welding way, and the direction of the spiral direction is consistent with the direction of the spiral direction of a floating spiral runner 3. Fig. 15 is a structural view of a flow channel suspended overflow conduit 7, which is provided with two sections of threads on the outer surface thereof and is respectively in threaded connection with a secondary sealing disc 9 and an embedded spiral flow channel 8. Fig. 16 is a cross-sectional view of the embedded spiral flow channel, the inner wall of the embedded spiral flow channel 8 is provided with threads and is in threaded connection with the outer wall of the flow channel suspended overflow conduit 7, the turning directions of 5 spiral flow channels are consistent with the turning directions of the floating spiral flow channel 3 and the spiral gradually-expanding outlet pipe 24, and a steady flow inverted cone 25 is welded at the bottom of the embedded spiral flow channel 8 to stabilize the flow field. Figure 17 is an assembly view of a flow-suspended overflow conduit and an embedded spiral flow channel.
Fig. 18 is a schematic view of the working principle of low liquid inlet amount, and fig. 19 is a schematic view of the working principle of high liquid inlet amount. When the processing amount of the oil-water mixture phase is small, as shown in fig. 18, the floating type spiral flow passage 3 compresses the pressure stabilizing spring 4 to a small amount, the liquid inlet holes 601 arranged in the internal array of the secondary embedded type spiral flow passage separation unit are shielded, the oil-water mixture phase directly flows into the floating type spiral flow passage 3 to enter the primary separation unit for separation, the oil phase flows out through the same-direction outflow type overflow pipe 18, and the water phase flows out through the same-direction lateral flow type outlet pipe 19. When the processing capacity of the oil-water mixed phase is large, as shown in fig. 19, the floating spiral flow channel 3 has a large compression amount on the pressure stabilizing spring 4, the array liquid inlet hole 601 in the secondary embedded spiral flow channel separation unit is exposed to start shunting, part of the oil-water mixed phase flows into the secondary separation unit from the array liquid inlet hole 601 to be separated, the oil phase flows out from the flow channel suspension type overflow conduit 7, and the water phase flows out from the spiral gradually-expanding type outlet pipe 24 and then joins with the water in the cone diversion cavity 2 together to flow out from the cocurrent lateral flow type outlet pipe 19.
The automatic shunting type cyclone separation device provided by the invention can automatically adjust the axial position of the floating type spiral flow passage according to the floating range of the floating type spiral flow passage, when the liquid inlet amount is increased rapidly, part of mixed phases are uniformly distributed in the second-stage embedded spiral flow passage separation unit, the first-stage floating type spiral flow passage separation unit and the second-stage embedded spiral flow passage separation unit simultaneously carry out oil-water cyclone separation, so that the application range of the processing amount is expanded, automatic shunting is realized, the separation efficiency is high, the processing process is simple, the influence of low self-adaptive differential separation efficiency of the separation device under the complex working condition of large liquid inlet amount change is eliminated, and the applicability of the device is enhanced.
Claims (1)
1. An automatic shunting type cyclone separation device is provided with a primary floating type spiral flow passage separation unit and a secondary embedded type spiral flow passage separation unit; the method is characterized in that:
the primary floating type spiral flow channel separation unit comprises a limiting liquid inlet cylinder (1), a cone diversion cavity (2), a floating type spiral flow channel (3), a pressure stabilizing spring (4) and a primary sealing disc (5); the main structure of the limiting liquid inlet cylinder (1) is provided with a first-stage connecting hole (101), a flow channel limiting ring (10), a cylinder end flange (11) and a lateral liquid inlet pipe (12), the lateral liquid inlet pipe (12) is provided with a lateral liquid inlet hole (1201), the first-stage connecting hole (101) is in threaded connection with the first-stage sealing disc (5), the limiting liquid inlet cylinder (1) outlet end surface welding cylinder end flange (11) can be connected with a cavity end flange (13), the flow channel limiting ring (10) is welded on the inner side of the cylinder end flange (11), is equal in height to the cylinder end flange and keeps the bottom flush, the liquid inlet speed direction of the lateral liquid inlet hole (1201) is tangent to the inner wall of the limiting liquid inlet cylinder (1), the lateral liquid inlet hole (1201) end surface welding flange can be connected with an external pipeline, and the lateral liquid inlet pipe (12) is welded with the outer wall surface of the limiting liquid inlet cylinder (1);
the cone diversion cavity (2) mainly structurally comprises a cavity end flange (13), a column section cavity (14), a cone section cavity (15), a cavity underflow guide pipe (16), a spring support ring (17), a cocurrent outflow type overflow pipe (18) and a cocurrent side flow type outlet pipe (19), wherein the cavity end flange (13) is welded on the inlet end face of the cone diversion cavity (2), the column section cavity (14), the cone section cavity (15) and the cavity underflow guide pipe (16) are coaxial and are sequentially welded and connected, the spring support ring (17) is welded on the inner side of the column section cavity (14) and is close to the cone section cavity (15) in the axial direction, the cocurrent outflow type overflow pipe (18) axially penetrates through the whole cavity underflow guide pipe (16), and a cocurrent outflow type overflow pipe (18) outlet end face welding flange is connected with an external pipeline, the cocurrent side flow type outlet pipe (19) outlet end face welding flange can be connected with the external pipeline, and the cocurrent side flow type outlet pipe (19) is welded and connected with the outer wall face of the cavity underflow guide pipe (16);
the floating spiral flow passage (3) consists of five spiral flow passages, is in clearance contact with the inner side of the cone diversion cavity (2) and the outer wall of the tangential rotational flow cylinder (6) and is positioned above the pressure stabilizing spring (4); the pressure stabilizing spring (4) is positioned on the spring support ring (17) and is in clearance contact with the inner side of the cone diversion cavity (2); the center of the primary sealing disc (5) is provided with a hole, the outer side of the primary sealing disc (5) is provided with a thread which is in threaded connection with a primary connecting hole (101) on the limiting liquid inlet cylinder (1), a primary sealing ring (20) is embedded in the inner side of the primary sealing disc (5), and the primary sealing ring (20) is in interference connection with the tangential rotational flow cylinder (6);
the secondary embedded spiral flow channel separation unit comprises a tangential cyclone cylinder (6), a flow channel suspension type overflow conduit (7), an embedded spiral flow channel (8) and a secondary sealing disc (9); the tangential cyclone cylinder (6) is provided with a cylinder section cylinder body (21), a cone section cylinder body (22), a cylinder body underflow conduit (23) and a spiral gradually-expanding outlet pipe (24), the top end of the cylinder section cylinder body (21) is provided with partial threads which are in threaded connection with the secondary sealing disc (9), the cylinder section cylinder body (21), the cone section cylinder body (22) and the cylinder body underflow conduit (23) are coaxial and are sequentially welded, the tangential cyclone cylinder (6) surface is distributed on the circumference of 10 columns of liquid inlet holes (601), each column is provided with 5 array liquid inlet holes (601), the spiral gradually-expanding outlet pipe (24) is welded and connected with the cylinder body underflow conduit (23), and the rotating direction of the spiral gradually-expanding outlet pipe is consistent with the rotating direction of the floating spiral runner (3); the outer surface of the flow channel suspension type overflow conduit (7) is provided with two sections of threads which are respectively in threaded connection with the secondary sealing disc (9) and the embedded spiral flow channel (8), and the center of the flow channel suspension type overflow conduit (7) is provided with a through hole which penetrates through the whole;
the inner wall of the embedded spiral flow channel (8) is provided with threads and is in threaded connection with the outer wall of the flow channel suspended overflow conduit (7), the embedded spiral flow channel (8) consists of 5 flow channels, the rotating direction of the embedded spiral flow channel is consistent with that of the floating spiral flow channel (3) and the spiral gradually-expanding outlet pipe (24), and a steady flow inverted cone (25) is welded at the bottom of the embedded spiral flow channel (8); the center of the secondary sealing disk (9) is provided with a hole, the outer side of the secondary sealing disk is provided with a part of threads which are in threaded connection with the top of the tangential cyclone cylinder (6), the secondary sealing disk (9) is embedded with a secondary sealing ring (901), and the secondary sealing ring (901) is in interference connection with the runner suspension type overflow conduit (7).
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