阅读说明：本技术 一种间歇式旋流分离装置 (Intermittent type formula hydrocyclone separation device ) 是由 宋民航 赵姝婷 杨宏燕 刘琳 张爽 邢雷 于 2019-12-03 设计创作，主要内容包括：一种间歇式旋流分离装置。包括水相出口管、叶轮轴、小锥齿轮、大锥齿轮、大锥齿轮轴、间歇转动机构壳体、大锥齿轮轴密封结构、固定结构、切向入口、油相出口管、旋流腔、油相挡板、小锥齿轮轴、叶轮壳体、旁路管、切向出口、出口锥、入口锥、转速调节管、叶轮、旋转盘、导向槽、推动块、导向柱及十字块等。所述切向出口为弧形结构,切向出口在靠近旋流腔的一端与旋流腔的顶端相切,切向出口在远离旋流腔的一端分叉成为旁路管和转速调节管两个液流通道；叶轮壳体位于转速调节管上；叶轮位于叶轮壳体及转速调节管共同组成的腔室内；大锥齿轮位于间歇转动机构壳体的外部。本发明具有分离效率高、系统集成性强、结构紧凑及成本低的优点。(An intermittent cyclone separation device. The device comprises a water phase outlet pipe, an impeller shaft, a small bevel gear, a large bevel gear shaft, an intermittent rotating mechanism shell, a large bevel gear shaft sealing structure, a fixing structure, a tangential inlet, an oil phase outlet pipe, a rotational flow cavity, an oil phase baffle, a small bevel gear shaft, an impeller shell, a bypass pipe, a tangential outlet, an outlet cone, an inlet cone, a rotational speed adjusting pipe, an impeller, a rotating disk, a guide groove, a pushing block, a guide column, a cross block and the like. The tangential outlet is of an arc structure, one end of the tangential outlet close to the rotational flow cavity is tangent to the top end of the rotational flow cavity, and one end of the tangential outlet far away from the rotational flow cavity is branched into a bypass pipe and a rotational speed adjusting pipe; the impeller shell is positioned on the rotating speed adjusting pipe; the impeller is positioned in a cavity formed by the impeller shell and the rotating speed adjusting pipe; the large bevel gear is located outside the intermittent rotation mechanism housing. The invention has the advantages of high separation efficiency, strong system integration, compact structure and low cost.)

1. The intermittent cyclone separation device comprises a cyclone cavity (16), a tangential inlet (13), a tangential outlet (24) and an inlet cone (26), and is characterized by further comprising a bypass pipe valve (1), a water phase outlet pipe (2), a rotating speed adjusting pipe valve (3), an impeller sealing structure (4), an impeller shaft (5), a small bevel gear (6), a large bevel gear (7), a large bevel gear shaft (8), an intermittent rotating mechanism shell (9), a large bevel gear shaft sealing structure (10), an intermittent mechanism sealing structure (11), a fixing structure (12), an oil phase outlet pipe valve (14), an oil phase outlet pipe (15), an oil phase baffle plate (17), a small bevel gear shaft sealing structure (18), a small bevel gear shaft (19), an impeller shell (20), a cam cavity (21), a shaft sleeve (22), a bypass pipe (23), The device comprises an outlet cone (25), a rotating speed adjusting pipe (27), an impeller (28), a slide way (29), a spring (30), a T-shaped baffle (31), a cam (32), a rotating disc (33), a guide groove (34), a pushing block (35), a guide column (36) and a cross block (37);

wherein the oil phase outlet pipe (15) passes through the center of the outlet cone (25) and extends to the outer side of the rotational flow cavity (16); the tangential outlet (24) is of an arc-shaped structure, and one end of the tangential outlet (24) close to the vortex cavity (16) is tangent to the top end of the vortex cavity (16); the tangential outlet (24) is branched into two liquid flow channels of a bypass pipe (23) and a rotating speed adjusting pipe (27) at one end far away from the rotating flow cavity (16), and then the bypass pipe (23) and the rotating speed adjusting pipe (27) are combined together to form a water phase outlet pipe (2);

the impeller shell (20) is positioned on the rotating speed adjusting pipe (27) and is connected and communicated with the rotating speed adjusting pipe (27); the impeller (28) is positioned in a cavity formed by the impeller shell (20) and the rotating speed adjusting pipe (27);

the intermittent rotating mechanism shell (9) is fixed at the top end of the rotational flow cavity (16) through a fixing structure (12); the rotating disc (33), the guide groove (34), the pushing block (35), the cross block (37) and the guide column (36) are positioned in the intermittent rotating mechanism shell (9);

the impeller (28) is positioned on the impeller shaft (5) and is arranged coaxially with the impeller shaft (5); one end of the impeller shaft (5) sequentially penetrates through the impeller shell (20) and the intermittent rotating mechanism shell (9) and is fixedly connected with the center of a rotating disc (33) positioned in the intermittent rotating mechanism shell (9);

the other end of the impeller shaft (5) penetrates through the impeller shell (20) and the shaft sleeve (22) to enter a cam chamber (21) connected and communicated with the shaft sleeve (22) and is connected with a cam (32) positioned in the cam chamber (21); the cam chamber (21) is connected and communicated with a bypass pipe (23); the slideway (29) is positioned in the cam chamber (21) and on the side wall of the bypass pipe (23); one end of the T-shaped baffle plate (31) penetrates through the slide way (29) and enters the bypass pipe (23) along the slide way (29); the spring (30) is positioned on the T-shaped baffle (31) and on the outer side of the slide way (29);

the large bevel gear (7) is positioned outside the intermittent rotating mechanism shell (9); one end of the large bevel gear shaft (8) is fixedly connected with the center of the large bevel gear (7), and the other end of the large bevel gear shaft penetrates through the intermittent rotation mechanism shell (9) and is fixedly connected with the center of the cross block (37);

the oil phase baffle (17) is positioned inside the oil phase outlet pipe (15); one end of the small bevel gear shaft (19) penetrates through the oil phase outlet pipe (15) and is fixedly connected with the oil phase baffle (17), and the other end of the small bevel gear shaft is fixedly connected with the center of the small bevel gear (6) positioned outside the oil phase outlet pipe (15);

the small bevel gear (6) and the large bevel gear (7) are meshed with each other, and the indexing circumference of the large bevel gear (7) is 2 times of that of the small bevel gear (6), namely the large bevel gear (7) rotates 1/4 circles to drive the small bevel gear (6) matched with the large bevel gear to rotate 1/2 circles.

Technical Field

The invention relates to a cyclone separation device applied to the fields of petroleum, chemical engineering, environmental protection and the like, and aims to separate two-phase immiscible media with density difference.

Background

Compared with other types of separation methods, the hydrocyclone adopting the centrifugal separation method to separate the immiscible mediums has the advantages of compact structure and quick separation. At present, the hydrocyclone has a certain application in the fields of oil exploitation, chemical engineering, municipal environmental protection and the like. The separation principle of the hydrocyclone is to utilize the density difference between immiscible media to carry out centrifugal separation, and the separation efficiency is directly influenced by the density difference of a multiphase medium to be separated, the particle size of a disperse phase and other physical parameters. However, in the field of oil field exploitation, as the oil content of oil field produced fluid decreases year by year (the oil content of part of oil field produced fluid is lower than 5%), the difficulty of obtaining high-concentration oil-rich phase by adopting a cyclone separation method gradually increases. How to deeply excavate and improve the separation performance of the hydrocyclone and the cyclone separation efficiency is one of the important concerns of those skilled in the art. For the conventional hydrocyclone, which is widely applied at present, in the high-speed rotation process of oil-water two-phase liquid flow in the cyclone cavity, oil with lower density is subjected to radial migration force to the central area, oil drops are transported to the center of the cyclone cavity and form oil nuclei in the central axis area, and then the oil nuclei continuously flow out from an oil phase outlet pipe in the central area. The separation process is continuously carried out, and the separation of oil phase and water phase is realized. However, in this process, the oil core in the central region is dynamically formed and continuously discharged, which results in a large degree of smaller diameter of the oil core, so that more water phase exists in the annular region formed between the oil core and the inner wall of the oil phase outlet pipe except the oil core inside the oil phase outlet pipe, which inevitably causes the oil core to flow out together with the water phase around the oil core, and greatly reduces the efficiency of the cyclone separation.

Disclosure of Invention

In order to solve the technical problems mentioned in the background art, the invention provides an intermittent cyclone separation device, by which the intermittent increase and decrease of the opening degree of an oil phase baffle in an oil phase outlet pipe can be realized. When the opening degree of the oil phase baffle is reduced, the oil core is gradually enriched and enlarged in the oil phase outlet pipe, meanwhile, the water phase in an annular area formed between the oil core and the inner wall of the oil phase outlet pipe is gradually reduced, after the oil core is accumulated to a certain amount in the oil phase outlet pipe, the oil phase baffle is quickly opened in a short time to enable the oil core to flow out, and then the oil phase baffle is quickly closed. The separation mode can avoid carrying the water phase in the oil phase outflow process to the maximum extent, thereby greatly improving the cyclone separation efficiency. The intermittent cyclone separation device has the advantages of high separation efficiency, compact structure, low investment and the like.

The technical scheme of the invention is as follows:

the intermittent cyclone separation device comprises a cyclone cavity, a tangential inlet, a tangential outlet and an inlet cone, and is characterized by further comprising a bypass pipe valve, a water phase outlet pipe, a rotating speed adjusting pipe valve, an impeller sealing structure, an impeller shaft, a small bevel gear, a large bevel gear shaft, an intermittent rotating mechanism shell, a large bevel gear shaft sealing structure, an intermittent mechanism sealing structure, a fixing structure, an oil phase outlet pipe valve, an oil phase outlet pipe, an oil phase baffle, a small bevel gear shaft sealing structure, a small bevel gear shaft, an impeller shell, a cam cavity, a shaft sleeve, a bypass pipe, an outlet cone, a rotating speed adjusting pipe, an impeller, a slide way, a spring, a T-shaped baffle, a cam, a rotating disk, a guide groove, a pushing block, a guide column and a cross block.

Wherein the oil phase outlet pipe passes through the center of the outlet cone and extends to the outer side of the vortex cavity; the tangential outlet is of an arc structure, and one end of the tangential outlet close to the vortex cavity is tangent to the top end of the vortex cavity; the tangential outlet is branched into two liquid flow channels of a bypass pipe and a rotating speed adjusting pipe at one end far away from the rotating flow cavity, and then the bypass pipe and the rotating speed adjusting pipe are converged into a water phase outlet pipe.

The impeller shell is positioned on the rotating speed adjusting pipe and is connected and communicated with the rotating speed adjusting pipe; the impeller is positioned in a cavity formed by the impeller shell and the rotating speed adjusting pipe; the intermittent rotating mechanism shell is fixed at the top end of the rotational flow cavity through a fixing structure; the rotating disc, the guide groove, the pushing block, the cross block and the guide column are positioned in the intermittent rotating mechanism shell; the impeller is positioned on the impeller shaft and is coaxially arranged with the impeller shaft; one end of the impeller shaft sequentially penetrates through the impeller shell and the intermittent rotating mechanism shell and is fixedly connected with the center of a rotating disc positioned in the intermittent rotating mechanism shell; the other end of the impeller shaft penetrates through the impeller shell and the shaft sleeve to enter a cam cavity connected and communicated with the shaft sleeve and is connected with a cam positioned in the cam cavity; the cam chamber is connected and communicated with a bypass pipe; the slide way is positioned in the cam chamber and on the side wall of the bypass pipe; one end of the T-shaped baffle passes through the slideway and enters the bypass pipe along the slideway; the spring is positioned on the T-shaped baffle and on the outer side of the slideway.

The large bevel gear is positioned outside the intermittent rotation mechanism shell; one end of the large bevel gear shaft is fixedly connected with the center of the large bevel gear, and the other end of the large bevel gear shaft penetrates through the intermittent rotating mechanism shell and is fixedly connected with the center of the cross block; the oil phase baffle is positioned inside the oil phase outlet pipe; one end of the small bevel gear shaft penetrates through the oil phase outlet pipe and is fixedly connected with the oil phase baffle, and the other end of the small bevel gear shaft is fixedly connected with the center of a small bevel gear positioned outside the oil phase outlet pipe.

The small bevel gear and the large bevel gear are meshed with each other, and the indexing circumference of the large bevel gear is 2 times of that of the small bevel gear, namely the large bevel gear rotates 1/4 circles and drives the small bevel gear matched with the large bevel gear to rotate 1/2 circles.

The invention has the following beneficial effects: the invention has the advantages that the oil core is gradually enriched and enlarged by realizing the intermittent increase and decrease of the opening degree of the oil phase baffle in the oil phase outlet pipe, the opening degree of the oil phase baffle is rapidly increased in a short time after the oil core is accumulated to a certain amount in the oil phase outlet pipe, the oil core flows out, the water phase is prevented from being carried in the process of the oil core flowing out to the greatest extent, and the cyclone separation efficiency is greatly improved. The second effect is that the invention does not depend on external power and automatic control device, and realizes the intermittent increase and decrease of the opening degree of the oil phase baffle plate through self fluid thrust and device structure. Simple structure and with low costs, easily realize. Third, the intermittent cyclone separation structure of the present invention can be applied to a hydrocyclone of the same outflow direction (i.e. oil and water phases are discharged from the same side) as that of the present application, or can be applied to a hydrocyclone with a non-same outflow direction (i.e. oil and water phases are discharged from two sides) after the outlet pipe of the hydrocyclone is led to one side, so that the present invention has the advantage of wide application range.

Description of the drawings:

FIG. 1 is a top view of a batch cyclonic separation apparatus of the present invention.

FIG. 2 is a sectional view taken along the line A of a batch type cyclone separator of the present invention.

Fig. 3 is a view in the direction B of a batch-type cyclonic separating apparatus according to the present invention.

Fig. 4 is a perspective view of a batch-type cyclonic separating apparatus of the present invention.

FIG. 5 is a partial perspective view of a batch cyclone separation device of the present invention.

Fig. 6 is a perspective view of an impeller of an intermittent cyclonic separating apparatus of the present invention.

Fig. 7 is a perspective view of a cam chamber and its internal structure of an intermittent cyclone separation device according to the present invention.

FIG. 8 is a perspective view of a T-shaped baffle of an intermittent cyclonic separating apparatus of the present invention.

Fig. 9 is a perspective view of an intermittent rotation mechanism casing of an intermittent cyclonic separating apparatus of the present invention.

Fig. 10 is a perspective view of an intermittent drive structure of an intermittent cyclone separation device of the present invention 1.

Fig. 11 is a perspective view of an intermittent drive structure of an intermittent cyclone separation device of the present invention 2.

FIG. 12 is a perspective view of a cross block of an intermittent cyclonic separation apparatus of the present invention.

FIG. 13 is a side view of an intermittent drive configuration of an intermittent cyclonic separating apparatus of the present invention.

Fig. 14 is a perspective view of a bevel pinion of an intermittent cyclonic separating apparatus of the present invention.

Fig. 15 is a perspective view of a bevel pinion and an oil phase baffle of an intermittent cyclone separation device according to the present invention.

Fig. 16 is an alternative structure of an oil phase outlet pipe of a batch type cyclone separation device of the invention.

FIG. 17 is a schematic diagram of the cyclonic separation of a batch cyclonic separation apparatus of the present invention.

FIG. 18 is a schematic diagram of a batch cyclone separation process using a batch cyclone separation apparatus according to the present invention.

FIG. 19 is a graph showing the change of the opening degree of an oil phase baffle plate of a batch type cyclone separation apparatus according to the present invention with time.

FIG. 20 is a schematic diagram of a batch type cyclone separation apparatus according to the present invention.

FIG. 1-bypass valve; 2-aqueous phase outlet pipe; 3-rotating speed adjusting pipe valve; 4-impeller sealing structure; 5-impeller shaft; 6-small bevel gear; 7-large bevel gear; 8-big bevel gear shaft; 9-intermittent rotation mechanism shell; 10-big bevel gear shaft sealing structure; 11-an intermittent mechanism sealing structure; 12-a fixed structure; 13-a tangential inlet; 14-oil phase outlet pipe valve; 15-oil phase outlet pipe; 16-a vortex chamber; 17-oil phase baffle; 18-a bevel pinion shaft seal structure; 19-a bevel pinion shaft; 20-an impeller housing; 21-a cam chamber; 22-shaft sleeve; 23-a bypass pipe; 24-a tangential outlet; 25: an outlet cone; 26-an inlet cone; 27-a rotating speed adjusting pipe; 28-an impeller; 29-a slide; 30-a spring; 31-T shaped baffles; 32-cam; 33-rotating disc; 34-a guide groove; 35-a pushing block; 36-a guide post; 37-cross block.

The specific implementation mode is as follows:

the invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 to 13, a high efficiency gap type cyclone separating apparatus according to an embodiment of the present invention, the device comprises a bypass pipe valve 1, a water phase outlet pipe 2, a rotating speed adjusting pipe valve 3, an impeller sealing structure 4, an impeller shaft 5, a small bevel gear 6, a large bevel gear 7, a large bevel gear shaft 8, an intermittent rotating mechanism shell 9, a large bevel gear shaft sealing structure 10, an intermittent mechanism sealing structure 11, a fixed structure 12, a tangential inlet 13, an oil phase outlet pipe valve 14, an oil phase outlet pipe 15, a rotational flow cavity 16, an oil phase baffle 17, a small bevel gear shaft sealing structure 18, a small bevel gear shaft 19, an impeller shell 20, a cam cavity 21, a shaft sleeve 22, a bypass pipe 23, a tangential outlet 24, an outlet cone 25, an inlet cone 26, a rotating speed adjusting pipe 27, an impeller 28, a slideway 29, a spring 30, a T-shaped baffle 31, a cam 32, a rotating disk 33, a guide groove 34, a pushing block 35, a guide column.

As shown in fig. 1 to 4, the tangential inlets 13 are two and are respectively arranged at the bottom end of the swirling chamber 16 in an axisymmetric tangential manner; the inlet cone 26 is located at the bottom center of the vortex chamber 16; the inlet cone 26 is arranged to avoid turbulence at the inlet caused by high-speed rotating liquid flow; the outlet cone 25 is located at the top center of the vortex chamber 16; the outlet cone 25 is arranged to facilitate the energy loss of the supplementary liquid flow during the rotation process, thereby improving the rotational flow speed and promoting the separation of the immiscible two-phase media with density difference. The inlet cone is arranged to avoid turbulence at the inlet caused by high-speed rotating liquid flow; the outlet cone is positioned at the center of the top of the cyclone cavity; the outlet cone is favorable for supplementing the energy loss of liquid flow in the rotating process, so that the rotational flow speed is improved, and the separation of immiscible two-phase media with density difference is promoted.

As shown in fig. 1 to 5, the oil phase outlet pipe 15 passes through the center of the outlet cone 25 and extends to the outside of the swirling chamber 16; the tangential outlet 24 is of an arc structure, the tangential outlet 24 is tangent with the top end of the swirling chamber 16 at the end close to the swirling chamber 16, and the tangential outlet 24 is branched into two liquid flow channels, namely a bypass pipe 23 and a rotating speed adjusting pipe 27 at the end far away from the swirling chamber 16. Then, the bypass pipe 23 and the rotational speed adjusting pipe 27 are merged together into the water phase outlet pipe 2.

As shown in fig. 4 to 6, the impeller housing 20 is located on the rotation speed adjusting pipe 27, and is connected and communicated with the rotation speed adjusting pipe 27; the impeller 28 is located in a chamber formed by the impeller housing 20 and the rotation speed adjusting pipe 27.

As shown in fig. 7 to 11, the intermittent rotation mechanism housing 9 is fixed to the top end of the vortex chamber 16 by a fixing structure 12; the rotating disc 33, the guide groove 34, the pushing block 35, the cross block 37 and the guide post 36 are positioned inside the intermittent rotation mechanism housing 9.

As shown in fig. 9 and 10, four guide posts 36 are fixed to the end of the cross block 37; the pushing block 35 is fixed on the rotating disc 33, so that two guide grooves 34 are respectively formed on both sides of the pushing block 35; the cross block 37 and the guide post 36 are integrally arranged on the rotating disc 33; the intermittent rotation mechanism located inside the intermittent rotation mechanism housing 9 may be other structural devices capable of realizing intermittent rotation.

As shown in fig. 2 and 3, the impeller 28 is located on the impeller shaft 5 and is arranged coaxially with the impeller shaft 5; one end of the impeller shaft 5 sequentially penetrates through the impeller shell 20 and the intermittent rotation mechanism shell 9 and is fixedly connected with the center of a rotating disc 33 positioned in the intermittent rotation mechanism shell 9; the impeller sealing structure 4 is used for sealing the impeller shell 20 and the impeller shaft 5; the intermittent mechanism sealing structure 11 is used for sealing the intermittent rotation mechanism housing 9 and the impeller shaft 5.

As shown in fig. 7 and 8, the other end of the impeller shaft 5 passes through the impeller housing 20 and the shaft sleeve 22 to enter the cam chamber 21 connected and communicated with the shaft sleeve 22, and is connected with the cam 32 located in the cam chamber 21; the cam chamber 21 is connected and communicated with a bypass pipe 23; the slide track 29 is located within the cam chamber 21 and on the side wall of the bypass tube 23; one end of the T-shaped baffle 31 passes through the slide way 29 and enters the bypass pipe 23 along the slide way 29; the spring 30 is located on the T-shaped stop 31 and outside the slide 29.

As shown in fig. 1 to 4, the large bevel gear 7 is located outside the intermittent rotation mechanism housing 9; one end of the large bevel gear shaft 8 is fixedly connected with the center of the large bevel gear 7, and the other end of the large bevel gear shaft penetrates through the intermittent rotation mechanism shell 9 and is fixedly connected with the center of the cross block 37; the large bevel gear shaft sealing structure 10 is used for sealing the large bevel gear shaft 8 and the intermittent rotation mechanism housing 9.

As shown in fig. 1 to 4, the oil phase baffle 17 is located inside the oil phase outlet pipe 15; one end of the small bevel gear shaft 19 penetrates through the oil phase outlet pipe 15 and is fixedly connected with the oil phase baffle 17, and the other end of the small bevel gear shaft is fixedly connected with the center of the small bevel gear 6 positioned outside the oil phase outlet pipe 15; the bevel pinion shaft sealing structure 18 is used for sealing the oil phase outlet pipe 15 and the bevel pinion shaft 19.

As shown in fig. 14, the oil phase outlet pipe 15 may have a straight pipe type, or may have an oblique angle type or a constricted neck type.

As shown in FIG. 1, the small bevel gear 6 and the large bevel gear 7 are meshed with each other, and the indexing circumference of the large bevel gear 7 is 2 times of the indexing circumference of the small bevel gear 6, i.e. the large bevel gear 7 rotates 1/4 circles, which brings the small bevel gear 6 matched with the large bevel gear into 1/2 circles.

As shown in fig. 1 to 5, the bypass pipe valve 1, the rotational speed control pipe valve 3, and the oil phase outlet pipe valve 14 are respectively installed on the bypass pipe 23, the rotational speed control pipe 27, and the oil phase outlet pipe 15 to control the flow rate of the liquid.

As shown in fig. 17, a schematic diagram of the change of the oil phase baffle opening over time, which can be achieved by the above structure, is given. The duration of the decrease in the oil phase baffle opening is about 5 to 10 times the duration of the increase in the oil phase baffle opening during one oil phase baffle rotation period T. Accordingly, the duration of the increase in the T-shaped flapper opening during the rotation period is about 5-10 times the duration of the decrease in the T-shaped flapper opening.

The working process of the invention is described below: the processing liquid (taking oil-water mixture as an example) firstly flows into the cyclone cavity from the tangential inlet at the bottom along the tangential direction at high speed, and forms high-speed rotating flow in the cyclone cavity. In the process of high-speed rotating and flowing of oil-water phases in the cyclone cavity, the water phase with high density is gradually thrown to the wall surface area of the cyclone cavity under the action of large centrifugal force and flows upwards along the wall surface of the cyclone cavity, and the part of liquid flow (also called water-rich phase) finally flows out from a tangential outlet at the top of the cyclone cavity. The oil phase has low density and is subjected to smaller centrifugal force, so that radial migration force for transporting low-density oil drops to the center is formed, the oil drops are gradually gathered to the central area, and the part of liquid flow (also called oil-rich phase) flows upwards and finally flows out from an oil phase outlet pipe positioned at the center of the cyclone cavity.

And after flowing through the tangential outlet, the water-rich phase liquid flow is divided into two high-speed liquid flows which respectively flow into the bypass pipe and the rotating speed adjusting pipe, and then the two high-speed liquid flows are converged and jointly flow into the water phase outlet pipe and finally flow out from the water phase outlet pipe. Because the impeller is positioned in the cavity formed by the rotating speed adjusting pipe and the impeller shell together, the impeller is pushed to rotate by high-speed liquid flow in the process of flowing through the rotating speed adjusting pipe. Meanwhile, the rotation of the impeller drives the impeller shaft, the rotating disk, the guide groove and the pushing block on the rotating disk to rotate. In the process, the rotation of the rotating disk, the pushing block and the guide groove further pushes the four guide columns and the cross block fixedly connected with the four guide columns to realize intermittent rotation. That is, one rotation of the rotating disk will drive the guide post and the cross block to rotate 1/4 times intermittently. Furthermore, in the process of 1/4-circle rotation, the cross block drives the big bevel gear shaft and the big bevel gear fixedly connected with the cross block to rotate for 1/4-circle. The rotation of the large bevel gear further drives the small bevel gear meshed with the large bevel gear, and the small bevel gear shaft and the oil phase baffle fixedly connected with the small bevel gear to rotate. In the invention, the indexing circumference of the large bevel gear is 2 times of that of the small bevel gear, so that the large bevel gear rotates 1/4 circles (corresponding to 90 degrees), and simultaneously the small bevel gear and the oil phase baffle rotate 1/2 circles (corresponding to 180 degrees), thereby finally realizing the intermittent increase and decrease of the opening degree of the oil phase baffle positioned in the oil phase outlet pipe through the structure. Meanwhile, the rotation of the impeller shaft drives the cam to rotate at the same time, the T-shaped baffle is further pushed by the rotation of the cam to enter the bypass pipe, so that the flow area in the bypass pipe is reduced, and then, along with the further rotation of the cam, after the cam rotates to the minimum diameter end, the T-shaped baffle is popped out from the bypass pipe under the action of the spring, so that the flow area in the bypass pipe is increased. Through the structure, when the opening degree of the baffle in the oil phase outlet pipe is reduced, the opening degree of the T-shaped baffle in the bypass pipe is correspondingly increased, and when the opening degree of the baffle in the oil phase outlet pipe is increased, the opening degree of the T-shaped baffle in the bypass pipe is correspondingly reduced. Finally, through the structural arrangement, the constant resistance and flow of the liquid flow in the process of flowing out of the separator are realized, so that the integral liquid flow flowing into the tangential inlet is stabilized, and the stable operation of the separator is maintained.

In the present invention, the duration of decrease in the oil phase baffle opening degree is about 5 to 10 times the duration of increase in the oil phase baffle opening degree during one oil phase baffle rotation period T. Accordingly, the duration of the increase in the T-shaped flapper opening during the rotation period is about 5-10 times the duration of the decrease in the T-shaped flapper opening.

According to the invention, through realizing the intermittent increase and decrease of the opening degree of the oil phase baffle in the oil phase outlet pipe, when the oil phase baffle is decreased, the high-speed rotating liquid flow enables the oil phase with lower density to be continuously gathered towards the central axis area of the cyclone cavity, the oil phase is gradually gathered and forms oil cores at the central axis, meanwhile, the oil cores are gradually gathered and increased in the oil phase outlet pipe, so that the water phase in the annular area formed between the oil cores and the inner wall of the oil phase outlet pipe is gradually reduced, after the oil cores are accumulated to a certain amount in the oil phase outlet pipe, the oil phase baffle is quickly opened in a short time to enable the oil cores to flow out, then, the opening degree of the oil phase baffle is quickly decreased. Through the intermittent type formula hydrocyclone separation mode above, avoided carrying the aqueous phase in the oil phase outflow process to the at utmost to improve hydrocyclone separation efficiency by a wide margin.

In addition, the opening of the oil phase baffle in the oil phase outlet pipe can be flexibly adjusted in the period of increasing and decreasing, so that the high-efficiency separation of two-phase media with different separation difficulties is realized. Specifically, the liquid flow distribution between the bypass pipe and the rotating speed adjusting pipe can be adjusted by adjusting the opening degree of valves on the bypass pipe and the rotating speed adjusting pipe respectively, so that the effect of adjusting the liquid flow velocity in the bypass pipe is achieved, the change of the liquid flow velocity can further achieve the effect of adjusting the rotating speed of the impeller, and finally the adjustment of the period of increasing and reducing the opening degree of the oil phase baffle is achieved.