Ultrasonic polymerization type dynamic cyclone separator and application thereof

Abstract

The present application relates to a kind of ultrasonic polymerization type dynamic cyclone separator and its application.The polymerization type dynamic cyclone separator includes shell, spiral cyclone plate, clear liquid outlet pipe, clear liquid collection cover, center shaft, water deflector, raw liquid inlet pipe, lower sealing bearing, collection tank, motor, upper sealing bearing, ultrasonic transmission rod, clear liquid inlet, ultrasonic transducer, clear liquid outlet.It has the characteristics of fast separation speed, large separation capacity and high separation precision, and can be applied in most solid-liquid separation fields.

Description

Technical Field

[0001] This invention relates to cyclone separators, and more particularly to an ultrasonic polymerization dynamic cyclone separator and its applications. Background Technology

[0002] In the research and development of multiphase media separation technology, various separation methods and forms have emerged to adapt to different needs and applications, including cyclone separation, coalescence separation, sedimentation separation, and chemical separation. Among them, cyclone separation, with its advantages of small equipment size and fast separation speed, is widely used in the field of multiphase flow separation. Traditional hydrocyclones are not suitable for high-precision separation between media. Coalescence separation has the advantage of high-precision separation, but its separation speed is relatively slow, generally requiring a long coalescence time. Coalescence is usually used in conjunction with sedimentation separation methods to achieve separation between media, but the separation speed is slow and cannot guarantee rapid continuous separation. For example, hydraulic coalescence aims to increase the collision probability between droplets, turning small oil droplets into larger ones, thereby accelerating separation efficiency and accuracy. However, currently, these existing technologies are still used independently and have not been organically combined to achieve better results.

[0003] Therefore, it is necessary to study a separation device to solve the problems existing in the above separation technology and achieve a fast, efficient and fine separation effect. Summary of the Invention

[0004] The purpose of this invention is to provide an ultrasonic polymerization dynamic cyclone separator and its application. It mainly solves the problems existing in the prior art. It has the characteristics of fast separation speed, large separation volume and high separation accuracy, and can be applied in most solid-liquid separation fields.

[0005] The specific technical solution of the present invention is as follows: An ultrasonic polymerization-type dynamic cyclone separator, characterized in that it comprises a shell, a spiral cyclone plate, a clear liquid outlet pipe, a clear liquid collection hood, a central shaft, a deflector plate, a raw liquid inlet pipe, a lower sealed bearing, a collection tank, a motor, an upper sealed bearing, an ultrasonic transmission rod, a clear liquid inlet, an ultrasonic transducer, and a clear liquid outlet; wherein: The lower end of the outer shell is connected to a collection tank; a spiral vortex plate is vertically arranged inside the outer shell, and a central shaft through which a water-dispensing plate is installed passes; the two ends of the central shaft are connected to the outer shell through a lower sealing bearing and an upper sealing bearing, respectively; a motor is connected to the upper end of the central shaft; the central shaft is hollow in at least its upper half, and several clear liquid inlets and outlets are provided in the hollow part, with the clear liquid inlets located below the clear liquid outlets; a clear liquid collection hood is provided on the central shaft outside the clear liquid outlets, with one end of the clear liquid collection hood connected to the clear liquid outlet pipe and the other end of the clear liquid outlet pipe extending outside the outer shell; the lower end of the side of the outer shell is also connected to a raw liquid inlet pipe; the outer shell and the spiral vortex plate are connected by an ultrasonic transmission rod, the other end of which is connected to an ultrasonic transducer.

[0006] The ultrasonic polymerization dynamic cyclone separator is characterized in that: multiple water-dispersing plates are distributed at equal intervals along the periphery of the central axis, and the water-dispersing plates are connected to the central axis in an embedded manner.

[0007] The ultrasonic polymerization dynamic cyclone separator is characterized in that: the main body of the shell is cylindrical, and the lower end of the main body is conical.

[0008] The ultrasonic polymerization dynamic cyclone separator is characterized in that: the spiral cyclone plate is a plate whose cross-section gradually expands from the inside to the outside in an involute manner.

[0009] The ultrasonic polymerization dynamic cyclone separator is characterized in that a clear liquid collection hood is provided at the upper end of the central shaft near the upper end of the shell.

[0010] The ultrasonic polymerization dynamic cyclone separator is characterized in that the raw liquid inlet pipe is connected to the outer shell in a tangential direction.

[0011] The ultrasonic polymerization dynamic cyclone separator is characterized in that it is applied to the treatment of produced fluid at oilfield wellheads.

[0012] The ultrasonic polymerization dynamic cyclone separator is characterized in that it is applied to the treatment of oily wastewater.

[0013] The ultrasonic polymerization dynamic cyclone separator is characterized in that it is applied to the treatment of circulating water systems, replacing the side-filter system.

[0014] Compared with the prior art, the present invention has the following advantages: 1. Compared with ordinary cyclone or centrifugal separation equipment of the same unit volume, the separator of this invention has the characteristics of fast separation speed, large separation volume, and high separation accuracy. In the field of cyclone centrifugal separation technology, it cleverly utilizes the shallow pool sedimentation principle to improve separation effect and speed. It can be applied to most solid-liquid separation fields.

[0015] 2. This invention, in the centrifugation and swirling process, not only relies on high-speed centrifugal force for separation, but also employs ultrasonic-enhanced polymerization separation technology. Ultrasonic separation utilizes the radiation of ultrasonic energy to cause suspended particles in the liquid, due to differences in density and compressibility, to aggregate and settle at different locations, ultimately achieving particle separation. The mechanism of ultrasonic aggregation is that microparticles existing in the liquid medium vibrate along with the liquid medium under the action of ultrasonic radiation. The smaller the particle size, the larger its amplitude, and the closer its phase is to the vibration phase of the liquid medium. During the vibration process, the particles collide and adhere, resulting in the particle size gradually increasing, the amplitude decreasing, and the phase lagging behind the vibration phase of the liquid medium. Due to the continuous "growth" of the particles, they no longer vibrate with the liquid medium and eventually settle.

[0016] This ensures efficient separation without requiring higher rotational speeds. This allows for a larger separation unit while avoiding vibrations caused by rotational imbalance during the separation process. Consequently, it eliminates the need for high-powered, high-speed motors, ensuring low energy consumption during operation.

[0017] 3. This invention can be applied to the field of emulsion demulsification. Ultrasonic demulsification is based on the displacement effect produced by ultrasound acting on fluid media with different properties. This causes the dispersed phase droplets in the emulsion to continuously move towards antinodes or nodes, accumulate, and collide, generating larger droplets, which then separate from the continuous phase under gravity. Centrifugal force, forming impact or shear force, acts on the emulsion, promoting the aggregation of dispersed phase droplets and thus accelerating emulsion demulsification. The stronger the centrifugal field, the better the demulsification effect. The combined action of ultrasound and centrifugation allows for rapid demulsification of emulsions at relatively low centrifugal speeds, achieving a demulsification rate of up to 97%.

[0018] 4. The separator of this invention is an active cyclone separator, which enables the liquid flow to achieve high-speed rotation without sacrificing pressure, thus greatly increasing the centrifugal force. Simultaneously, the adjustable speed of the external motor allows for adjustable rotational power, resulting in a wider range of throughput. During the cyclone process, the flow field is stable without fluctuations, effectively preventing the separated liquid flow from remixing and thus avoiding a reduction in the cyclone separator's separation performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the present invention.

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 3 This is a schematic diagram of the spiral swirl plate in this invention. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Please see Figure 1-3 This invention discloses an ultrasonic polymerization-type dynamic cyclone separator. As shown in the figure, it includes a shell 1, a spiral cyclone plate 2, a clear liquid outlet pipe 3, a clear liquid collection hood 4, a central shaft 5, a water-repelling plate 6, a raw liquid inlet pipe 7, a lower sealed bearing 8, a collection tank 9, a motor 10, an upper sealed bearing 11, an ultrasonic transmission rod 12, a clear liquid inlet 13, an ultrasonic transducer 14, and a clear liquid outlet 15. Wherein: The lower end of the outer shell 1 is connected to the collection tank 9; a spiral vortex plate 2 is vertically arranged inside the outer shell 1, and the central shaft 5 through which the water-repelling plate 6 is installed passes; the two ends of the central shaft 5 are connected to the outer shell 1 by a lower sealing bearing 8 and an upper sealing bearing 11, respectively; the upper end of the central shaft 5 is connected to a motor 10 (such as a speed-regulating motor); the central shaft 5 is hollow in at least its upper half, and a plurality of clear liquid inlets 13 and clear liquid outlets 15 are provided in the hollow part, with the clear liquid inlets 13 located below the clear liquid outlets 15; a clear liquid collection cover 4 is provided on the central shaft 5 outside the clear liquid outlets 15, and the clear liquid collection cover 4 is connected to one end of the clear liquid outlet pipe 3, and the other end of the clear liquid outlet pipe 3 extends outside the outer shell 1; the lower side of the outer shell 1 is also connected to the original liquid inlet pipe 7; the outer shell 1 and the spiral vortex plate 2 are both connected by an ultrasonic transmission rod 12, and the other end of the ultrasonic transmission rod 12 is connected to an ultrasonic transducer 14.

[0024] In this invention, the outer shell 1 and the spiral swirl plate 2 can be made of elastic, tough, and corrosion-resistant sheet metal. The central shaft 5 is made of a corrosion-resistant and rigid metal material. The ultrasonic transducer 14 can be an ultrasonic transducer made of a magnetostrictive material.

[0025] In this invention, multiple water-dispensing plates 6 are distributed at equal intervals around the central axis 5. For example, the water-dispensing plates 6 are connected to the central axis 5 by an inlay method. Of course, they can also be connected by welding.

[0026] In this invention, the main body of the outer shell 1 is cylindrical, and the lower end of the main body is conical.

[0027] In this invention, the spiral swirl plate 2 is a plate whose cross-section gradually expands from the inside to the outside in an involute manner.

[0028] In this invention, a clear liquid collection hood 4 is provided at the upper end of the central shaft 5 near the upper end of the housing 1, so that the clear liquid can be fully collected to facilitate discharge outside the separator.

[0029] In this invention, the raw liquid inlet pipe 7 is connected to the outer shell 1 in a tangential direction to ensure that the raw liquid can enter between the outer shell 1 and the spiral swirl plate 2.

[0030] The operating principle of this invention is as follows: When the motor 10 starts, it drives the central shaft 5 and the water-dispensing plate 6 to rotate at high speed. The water-dispensing plate 6 drives the raw liquid to be processed inside the outer shell 1 to rotate synchronously. Substances of different masses in the raw liquid move in opposite directions under the action of centrifugation, thereby producing a separation effect. During the rotational separation process, substances with a higher specific gravity are thrown onto the outer wall of the spiral vortex plate 2 by centrifugal force and aggregate, while moving downward along the spiral vortex plate 2. Substances with a lower specific gravity aggregate on the inner wall of the spiral vortex plate 2 under the action of centrifugal force, while moving upward along the spiral vortex plate 2. After a period of centrifugal vortex separation, the raw liquid near the central shaft 5 forms a clear liquid zone. When the clear liquid moves upward from the lower end of the central shaft 5 to the clear liquid inlet 13, it enters the interior of the central shaft 5, and then comes out from the clear liquid outlet 15 at the upper part of the central shaft 5. It is collected by the clear liquid collection hood 4 and discharged from the separator through the clear liquid outlet pipe 3.

[0031] During the separation process, the outer shell 1 and the spiral plate 2 are constantly in an ultrasonic vibration state driven by the ultrasonic transmission rod 12. The frequency range of the ultrasonic vibration is between 10 kHz and 25 kHz. This ultrasonic vibration can synchronously generate ultrasonic vibration in the raw liquid being treated, resulting in approximately 10,000 to 20,000 collisions per second between various particles in the raw liquid. This collision effectively promotes the polymerization effect of various particles in the raw liquid, which is a highly efficient polymerization at the microscopic level. Macroscopic polymerization, aided by centrifugal force and the shallow pool principle of the spiral plate 2, further improves the overall polymerization and separation effect of the raw liquid.

[0032] Finally, the solid impurities separated from the raw liquid fall into the collection tank 9 and are discharged periodically, thereby ensuring the normal operation of the cyclone separator of the present invention.

[0033] Application Example 1 of the Ultrasonic Polymerization Dynamic Cyclone Separator of this Invention: Application in the treatment of produced fluids at oilfield wellheads. Currently, my country is in the tertiary oil recovery stage, and the produced fluids contain large amounts of silt and water. Current field separation technologies are ineffective, failing to completely remove the silt from the raw fluid and frequently causing blockages in oil pipelines. Applying the separator of this invention to the treatment of produced fluids at oilfield wellheads can ensure the complete separation of silt from the produced fluids; moreover, it can thoroughly separate over 70% of the oil and water, allowing the separated water to be injected into the ground on-site, significantly reducing subsequent pipeline transportation and processing costs at oilfield joint stations.

[0034] Application Example 2 of the Ultrasonic Polymerization Dynamic Cyclone Separator of the present invention: Application in oily wastewater treatment. Certain modifications are required to the separator of the present invention. The clarified liquid outlet pipe 3 and the clarified liquid collection hood 4 are moved to the upper side of the outer shell 1 to serve as an oil outlet pipe; the raw liquid inlet pipe 7 is moved to the cone; and a water outlet pipe is reinstalled in the middle of the outer shell 1. During operation, small oil droplets in the raw liquid combine into larger oil droplets under ultrasonic compression. These larger droplets are then thrown onto the inner wall of the spiral plate 2 under centrifugal force, coalescing into an oil film. Since the spiral cyclone plate 2 is also constantly under ultrasonic vibration, the oil film moves upward along the inner wall of the spiral cyclone plate 2. The crude oil near the central axis 5, under the action of ultrasound and centrifugal force, causes the water to move away from the central axis and the inner wall of the cyclone plate 2, instead moving downward along the outer wall of the spiral cyclone plate 2 and the inner wall of the shell 1. Since the specific gravity of silt is greater than that of water, it falls into the collection tank 9 during the swirling process on the spiral vortex plate 2, while the water on the outermost wall is discharged through the water outlet pipe set on the outer wall, thus achieving the three-phase separation of oil, silt and sand.

[0035] Application Example 3 of the Ultrasonic Polymerization Dynamic Cyclone Separator of this Invention: Applied to circulating water system treatment, replacing the side-stream filtration system. The main purpose of configuring a side-stream filtration system in a circulating water system is to improve the quality and stability of the circulating water, prevent the accumulation of suspended solids, microorganisms, and other impurities within the system, and ensure efficient and stable system operation. Side-stream filtration systems play a crucial role in ensuring water quality in the circulating water system, preventing corrosion and scaling, conserving water resources, reducing chemical usage, ensuring system safety, and improving system efficiency and stability. However, current side-stream filtration systems suffer from the following problems: filter media aging, poor backwashing effect, system design issues, and water quality problems, all of which affect the final treatment effect. The cyclone separator of this invention is a highly efficient solid-liquid separation device without a filter layer, achieving separation accuracy fully meeting sand filtration standards. During operation, it avoids the problems of filter media aging and breakage leading to decreased filtration capacity, and also eliminates the problem of suspended solids, microorganisms, and corrosion products in the circulating water causing water quality deterioration and affecting the filtration effect of the side-stream filtration equipment.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An ultrasonic polymerization-type dynamic cyclone separator, characterized in that: It includes a shell (1), a spiral swirl plate (2), a clear liquid outlet pipe (3), a clear liquid collection hood (4), a central shaft (5), a water-dispensing plate (6), a raw liquid inlet pipe (7), a lower sealing bearing (8), a collection tank (9), a motor (10), an upper sealing bearing (11), an ultrasonic transmission rod (12), a clear liquid inlet (13), an ultrasonic transducer (14), and a clear liquid outlet (15); wherein: The lower end of the outer shell (1) is connected to the collection tank (9); a spiral vortex plate (2) is vertically arranged inside the outer shell (1), and the middle of the spiral vortex plate (2) passes through the central shaft (5) on which the water-dispensing plate (6) is installed; the two ends of the central shaft (5) are connected to the outer shell (1) through the lower sealing bearing (8) and the upper sealing bearing (11) respectively; the upper end of the central shaft (5) is connected to the motor (10); the central shaft (5) is hollow in at least its upper half, and several clear liquid inlets (13) and clear liquid outlets (14) are provided in the hollow part. 5) The clear liquid inlet (13) is located below the clear liquid outlet (15); a clear liquid collection hood (4) is provided on the central shaft (5) outside the clear liquid outlet (15), the clear liquid collection hood (4) is connected to one end of the clear liquid outlet pipe (3), and the other end of the clear liquid outlet pipe (3) extends outside the outer shell (1); the lower side of the outer shell (1) is also connected to the original liquid inlet pipe (7); the outer shell (1) and the spiral vortex plate (2) are connected by an ultrasonic transmission rod (12), and the other end of the ultrasonic transmission rod (12) is connected to the ultrasonic transducer (14).

2. The ultrasonic polymerization dynamic cyclone separator according to claim 1, characterized in that: The water-spraying plate (6) is distributed in multiple pieces at equal intervals around the central axis (5), and the water-spraying plate (6) is connected to the central axis (5) in an inlay manner.

3. The ultrasonic polymerization dynamic cyclone separator according to claim 1, characterized in that: The main body of the outer shell (1) is cylindrical, and the lower end of the main body is conical.

4. The ultrasonic polymerization dynamic cyclone separator according to claim 1, characterized in that: The spiral vortex plate (2) is a plate whose cross-section gradually expands from the inside to the outside in an involute manner.

5. The ultrasonic coalescing dynamic cyclonic separator of claim 1, wherein: A clear liquid collection hood (4) is installed at the upper end of the central shaft (5) near the upper end of the housing (1).

6. The ultrasonic coalescing dynamic cyclonic separator of claim 1, wherein: The raw material inlet pipe (7) is connected to the outer shell (1) in a tangential direction.

7. The ultrasonic coalescing dynamic cyclonic separator according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: It is used for the treatment of produced fluids at oilfield wellheads.

8. The ultrasonic coalescing dynamic cyclonic separator according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: It is used in the treatment of oily wastewater.

9. The ultrasonic coalescing dynamic cyclonic separator of claim 1 or 2 or 3 or 4 or 5 or 6, wherein: It is used in circulating water system treatment to replace the side-filter system.

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