Collection-magnetic-thermal multi-field cooperative strengthening hydraulic cyclone separator

Abstract

The hydraulic cyclone separator comprises a hydraulic cyclone system, a rotating electric field system, a magnetic field system, an electric heating heat preservation system and a sealing system. An oil-water emulsion flows into a cylindrical section of the cyclone through an inlet pipeline of the cyclone, dispersed-phase liquid drops in the cylindrical section of the cyclone are firstly coalesced into large liquid drops under the combined action of a rotating electric field and a magnetic field, a swirling flow field is formed in a cavity of the cyclone through a swirling flow guide vane, and oil-water separation of the oil-water emulsion is realized under the action of the swirling flow field; the whole hydrocyclone is wrapped in the electric heating coil and the heat preservation layer, so that the oil-water emulsion is maintained at a certain temperature, and the viscosity of the oil-water emulsion is reduced. According to the equipment, the oil-water separation efficiency is effectively improved through the synergistic effect of multiple fields.

Description

Technical Field

[0001] The present invention relates to the technical field of oil-water separation, and in particular to a hydrocyclone separator with integrated electro-magnetic-thermal multi-field synergistic enhancement. Background Art

[0002] Crude oil is an important resource and occupies an important position in human production and life. With the large-scale exploitation of traditional oil, conventional oil reserves have been gradually exhausted, and the importance of unconventional oil resources has become increasingly prominent. Shale oil in unconventional oil has characteristics such as large reserves and wide distribution. Currently, the applied nanofluid oil displacement technology has higher oil recovery rates, more stable pressures, and less formation damage, but the dehydration process of the produced fluid obtained is relatively difficult. At present, the separation efficiency of the electro-hydrocyclone field oil-water separator applied to the separation of oil-water emulsions still needs to be improved.

[0003] Therefore, it is necessary to develop a more efficient oil-water separation device to improve the oil-water separation efficiency. Summary of the Invention

[0004] In order to solve the deficiencies in the prior art, the present application proposes a hydrocyclone separator with integrated electro-magnetic-thermal multi-field synergistic enhancement. The device includes a hydrocyclone system, a rotating electric field system, a magnetic field system, an electric heating and insulation system, and a sealing system, thereby forming an electromagnetic-thermal composite field formed by a rotating electric field, a magnetic field, and a thermal field, which can achieve deep dehydration and effectively improve the oil-water separation speed and high oil-water separation efficiency.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A hydrocyclone separator with integrated electro-magnetic-thermal multi-field synergistic enhancement, comprising:

[0007] A hydrocyclone system, including an overflow pipe and a hydrocyclone chamber; the overflow pipe includes an outer overflow pipe and an inner overflow pipe arranged coaxially, and a swirl guide vane is provided on the outer wall of the overflow pipe; the hydrocyclone chamber includes a hydrocyclone cylindrical section, a hydrocyclone large cone section, a hydrocyclone small cone section, and a hydrocyclone underflow pipe arranged coaxially; the overflow pipe is coaxially disposed within the hydrocyclone cylindrical section, and the outer overflow pipe extends into the hydrocyclone cylindrical section and is successively connected to the swirl guide vane and the inner overflow pipe; a hydrocyclone inlet pipe is provided tangentially at the hydrocyclone cylindrical section;

[0008] A rotating electric field system is arranged between the overflow pipe and the hydrocyclone chamber for generating a rotating electric field;

[0009] A magnetic field system is arranged outside the hydrocyclone chamber for generating a magnetic field;

[0010] An electric heating and insulation system is arranged outside the hydrocyclone chamber for applying a thermal field.

[0011] Further, an electrode insulating layer is provided between adjacent electrode columns to separate the electrodes into non-connected conductive regions.

[0012] Further, the rotating electric field system includes electrodes and an electrode sleeve. The electrodes include at least 4 electrode columns arranged in an array, and the electrode columns are arranged parallel to each other along the axial direction; the electrode sleeve includes at least 4 electrode sleeve columns arranged in an array to wrap the electrode columns.

[0013] Further, the electrode sleeve columns near the swirl guide vanes completely wrap the electrode columns, and the electrode sleeve columns in the remaining part semi-encase the electrode columns.

[0014] Further, a sine electric signal with a phase difference of 2π / N is applied between two adjacent electrode columns, where N is the number of electrode columns arranged in an array. The overflow pipe and the cyclone chamber are grounded to generate a rotating electric field in the flow field within the cylindrical section of the cyclone.

[0015] Further, the outer overflow pipe, the electrodes, and the electrode sleeve are connected by flanges, and gaskets are provided between adjacent flanges.

[0016] Further, the magnetic field system includes an electromagnet chamber, an electromagnet coil, an electromagnet coil holder, and an electromagnet core. The electromagnet core is disposed within the electromagnet chamber, an electromagnet coil holder is provided outside the electromagnet core, and an electromagnet coil is arranged on the electromagnet coil holder. The electromagnet coil is connected to a DC power supply or an AC power supply.

[0017] Further, the electric heating and insulation system includes an electric heating coil and an insulation layer. The electric heating coil is sequentially wound around the outer sides of the inlet pipe of the cyclone, the cylindrical section of the cyclone, the large cone section of the cyclone, the small cone section of the cyclone, and the underflow pipe of the cyclone, and the insulation layer is coated outside the electric heating coil.

[0018] Further, the swirl guide vanes include at least four guide vanes. The roots of the swirl guide vanes are connected to the outer wall surface of the overflow pipe of the oil-water cyclone separator, and the tips of the swirl guide vanes are in contact with the inner wall surface of the cylindrical section of the oil-water cyclone separator.

[0019] Further, the swirl guide vanes are designed by the geometric method, using circular arc orthogonal blades, and the directrix is composed of an arc line and a straight line segment to form a gradually shrinking flow channel.

[0020] Advantages of the present invention:

[0021] 1. By applying a rotating electric field in the cylindrical section of the oil-water cyclone separator through the rotating electric field system, the present invention can effectively promote the coalescence of discrete-phase droplets in the cylindrical section of the cyclone and inhibit the breakup of large-size droplets, significantly increasing the particle size of the discrete-phase droplets in the oil-water emulsion passing through the swirl guide vanes and significantly improving the separation efficiency of the oil-water emulsion in the cyclone centrifugal field.

[0022] 2. The present invention applies a magnetic field to the cylindrical section of the oil-water hydrocyclone through a magnetic field system, regulates the movement behavior of droplets, increases the collision probability between droplets, improves the droplet coalescence efficiency, suppresses the fragmentation behavior of large droplets under the electric field, and promotes the coalescence of discrete-phase droplets in the oil-water emulsion in the cylindrical section of the hydrocyclone.

[0023] 3. The present invention applies a thermal field to the oil-water hydrocyclone through an electric heating and insulation system, enables the hydrocyclone to operate at the designed temperature, reduces the viscosity of the oil-water emulsion, promotes the drainage of the liquid film when discrete-phase droplets in the oil-water emulsion approach, promotes the coalescence of discrete-phase droplets, and effectively improves the oil-water separation efficiency. Description of the Drawings

[0024] Figure 1 is the front view of a hydrocyclone with multi-field synergistic enhancement of electricity-magnetism-thermality according to the present invention.

[0025] Figure 2 is the sectional view of a hydrocyclone with multi-field synergistic enhancement of electricity-magnetism-thermality according to the present invention.

[0026] Figure 3 is the partial sectional view of a hydrocyclone with multi-field synergistic enhancement of electricity-magnetism-thermality according to the present invention.

[0027] Figure 4 is the right view of the overflow pipe of the hydrocyclone.

[0028] Figure 5 is the front sectional view of the overflow pipe of the hydrocyclone.

[0029] Figure 6 is the front view of gasket A.

[0030] Figure 7 is the sectional view of the electrode.

[0031] Figure 8 is the right view of the electrode.

[0032] Figure 9 is the front view of gasket B.

[0033] Figure 10 is the sectional view of the electrode sleeve.

[0034] Figure 11 is the left view of the electrode sleeve.

[0035] Figure 12 is the front view of gasket C.

[0036] Figure 13 is the front view of the hydrocyclone chamber.

[0037] Figure 14 is the right view of the hydrocyclone chamber.

[0038] Figure 15 It is a semi-sectional view of the cyclone chamber.

[0039] Figure 16 It is a sectional view of the cyclone chamber.

[0040] Figure 17 It is a front view of the electromagnet.

[0041] Figure 18 It is a left view of the electromagnet.

[0042] Figure 19 It is a top sectional view of the electromagnet.

[0043] Figure 20 It is a directrix diagram of the cyclone guide vane.

[0044] In the figure: 100, overflow pipe; 101, outer overflow pipe; 102, overflow pipe flange; 103, cyclone guide vane; 104, inner overflow pipe; 105, inner overflow pipe inlet; 110, cyclone chamber; 111, cyclone chamber flange; 112, cyclone inlet pipe; 113, electromagnet connection platform; 114, electrode sleeve column groove; 115, cylindrical section of the cyclone; 116, large cone section of the cyclone; 117, small cone section of the cyclone; 118, underflow pipe of the cyclone; 200, electrode; 201, electrode terminal; 202, electrode flange; 203, electrode insulation layer; 204, electrode column; 210, electrode sleeve; 211, electrode sleeve flange; 212, electrode sleeve column; 300, magnetic field system; 301, electromagnet chamber; 302, electromagnet coil; 303, electromagnet coil holder; 304, electromagnet iron core; 305, wire passing hole in the electromagnet chamber; 306, wire passing hole cover in the electromagnet chamber; 307, electromagnet coil terminal A; 308, electromagnet coil terminal B; 400, electric heating coil; 500, gasket A; 510, gasket B; 520, gasket C. Specific implementation manners

[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. is for simplified description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0047] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Combined with the attached Figures 1 - 20 drawings, a hydrocyclone separator integrating multi-field collaborative enhancement of electricity, magnetism, and heat according to the present invention includes a hydrocyclone system, a rotating electric field system, a magnetic field system, an electric heating and heat preservation system, and a sealing system. Each system is as follows:

[0049] The hydrocyclone system includes an overflow pipe 100 and a hydrocyclone chamber 110. The overflow pipe 100 is provided with an outer overflow pipe 101, an overflow pipe flange 102, a swirl guide vane 103, and an inner overflow pipe 104; the hydrocyclone chamber 110 is provided with a hydrocyclone chamber flange 111, a hydrocyclone inlet pipe 112, an electromagnet connection platform 113, an electrode sleeve column groove 114, a hydrocyclone cylindrical section 115, a hydrocyclone large cone section 116, a hydrocyclone small cone section 117, and a hydrocyclone underflow pipe 118. The specific structure is as Figures 4 - 5, as shown in FIGS. 13-16, the external overflow pipe 101, overflow pipe flange 102, swirl guide vane 103, and internal overflow pipe 104 provided in the overflow pipe 100 are arranged along the same central axis; the inner diameter of the external overflow pipe 101 is larger than the inner diameter of the internal overflow pipe 104 to prevent the incompletely separated oil-water mixture from flowing out of the overflow pipe 100 when the overflow outlet is lower than the cylindrical section 115 of the hydrocyclone during installation; the cyclone chamber flange 111, cyclone cylindrical section 115, cyclone large cone section 116, cyclone small cone section 117, and cyclone underflow pipe 118 provided in the cyclone chamber 110 are arranged along the same central axis; the side wall of the cyclone cylindrical section 115 is connected to the cyclone inlet pipe 112, and the cyclone inlet pipe 112 is arranged tangentially along the cyclone cylindrical section 115; four axial electrode sleeve columns 114 are evenly distributed along the circumferential direction of the inner wall of the cyclone cylindrical section 115; for clamping the electrode sleeve column 212, and each electrode sleeve column 114 is parallel to the axis of the cyclone chamber 110; the four electrode sleeve columns 114 are rotated by a certain angle along the circumferential direction of the cyclone cylindrical section 115 so that the cyclone inlet pipe 112 does not pass through the electrode sleeve column 114, avoiding the disorder of the fluid streamline caused by the flow channel passing through the electrode groove or the electric leakage caused by the cutting of the electrode; four electromagnet connection platforms 113 are evenly distributed along the circumferential direction of the outer wall of the cyclone cylindrical section 115, the end face of the electromagnet connection platform 113 is parallel to the axial plane of the cyclone, and the end faces of adjacent electromagnet connection platforms 113 are perpendicular to each other; four threaded holes are evenly provided along the circumferential direction of the end face of the electromagnet connection platform 113 for the fixation of the magnetic field system 300.

[0050] More preferably, the diameter D of the cyclone cylindrical section is calculated by the following formula:

[0051]

[0052] where q m is the throughput, m 3 / h; Δp m is the maximum actual pressure drop, MPa; ρ l is the liquid phase density, t / m 3 ; C w is the mass concentration of the oil phase, %.

[0053] The nominal diameter D of the cyclone cylindrical section 115 c = D / 2.

[0054] Based on the nominal diameter D of the cyclone cylindrical section 115 c and the diameter D of the cylindrical section, then successively select the length L of the cylindrical section y1 = 4×D, the length of the large cone section The inner diameter D of the underflow pipe u = 0.33D C , the length of the small cone section Length L of the underflow pipe u = 50 × D u .

[0055] More preferably, in combination with attached Figures 2 - 5 , 20, the swirl guide vane 103 includes four guide vanes. The root of the swirl guide vane 103 is connected to the outer wall surface of the overflow pipe of the oil-water cyclone separator to fix the swirl guide vane 103, and the tip of the swirl guide vane 103 contacts the inner wall surface of the cylindrical section 115 of the oil-water cyclone separator. The swirl guide vane 103 is designed by the geometric method, using arc orthogonal blades. The directrix is composed of an arc line and a straight line segment, forming a gradually shrinking flow channel to achieve fluid acceleration.

[0056] The directrix equation of the root of the swirl guide vane 103 is as follows:

[0057]

[0058] The directrix equation of the tip of the swirl guide vane 103 is as follows:

[0059]

[0060] Among them, (x, y) are the coordinates of the root / tip directrix of the swirl guide vane in the plane rectangular coordinate system, ρ is the radius of the arc segment of the root directrix of the swirl guide vane, (x0, y0) are the coordinates of the intersection point of the arc segment and the straight line segment of the root directrix of the swirl guide vane, β1 and β2 are the angles between the inner and outer directrix straight line segments of the root of the swirl guide vane and the positive direction of the x-axis, K1 is the reciprocal of the slope of the straight line segment of the root directrix of the swirl guide vane, R1 is the root diameter of the swirl guide vane, and R2 is the tip diameter of the swirl guide vane.

[0061] The radius ρ of the arc segment of the root directrix of the swirl guide vane 103 can be determined by the following formula:

[0062] ρ = L0 / (1 - sinβ1)

[0063] Among them, L0 is the arc length of the basic segment, and β1 is the inner edge outlet angle.

[0064] The basic segments of the inner and outer directrices of the blades of the swirl guide vane 103 are related, but the outlet angles β1 and β2 of the inner and outer directrices of the guide vanes are independent of each other. When β2 = tan -1 [(R1 / R2)tanβ1], the inner and outer directrices are completely related, and at this time β1 and β2 are not independent of each other. When the outlet angle β2 of the outer directrix is greater than the outlet angle β1 of the inner directrix, it is beneficial to the separation of the oil-water emulsion. The outlet cross-sectional area is:

[0065]

[0066] Among them, δ1 and δ2 are the minimum thicknesses of the inner and outer edges of the outlet of the guide vane respectively, and n is the number of guide vanes of the guide vane.

[0067] The arc lengths L and h of the blade package can be determined according to the overlap rate of the guidelines of two adjacent blades before and after. Generally, the overlap rate of the outer guidelines of adjacent blades is (0.4 - 0.75)L.

[0068] The rotating electric field system includes an electrode 200 and an electrode sleeve 210. The electrode 200 is provided with an electrode terminal 201, an electrode flange 202, an electrode insulating layer 203, and an electrode column 204. The electrode sleeve 210 is provided with an electrode sleeve flange 211 and an electrode sleeve column 212. The specific structure is as Figures 7 - 8 , shown in FIGS. 10 - 11. The electrode sleeve 210 is made of insulating material. The four electrode sleeve columns 212 of the electrode sleeve 210 are evenly arranged in the circumferential direction, and each electrode sleeve column 212 is parallel to the axis of the electrode sleeve 210. A semi - closed electrode groove is opened on the side of the electrode sleeve column 212 close to the electrode sleeve flange 211, and the semi - closed electrode groove opens towards the side of the outer overflow pipe 101. Therefore, the electrode in the semi - closed electrode groove is a bare electrode, which improves the electric field demulsification effect. A closed electrode groove (square hole) is opened on the side far from the electrode sleeve flange 211. The closed electrode groove completely wraps the electrode, and the end face is also closed, insulating the electrode from the cyclone wall and the swirl guide vane 103, preventing the cyclone chamber 110 and the overflow pipe 100 from being charged, and avoiding electric shock accidents. The four electrode columns 204 of the electrode 200 are evenly arranged in the circumferential direction, and each electrode column 204 is parallel to the axis of the electrode 200. The radial thickness of a section of the electrode column 204 far from the electrode flange 202 is smaller to cooperate with the end of the square hole of the electrode sleeve column 212 for wrapping. The electrode flange 202 of the electrode 200 is provided with four electrode insulating layers 203 evenly distributed in the circumferential direction, dividing the electrode 200 into four non - connected conductive regions. Each conductive region has one electrode column 204 and one electrode terminal 201 respectively. The electrode terminals 201 are connected to the outside of the electrode flange 202 and are evenly distributed in the circumferential direction.

[0069] Among the four electrode columns 204 of the electrode 200, adjacent two are applied with sinusoidal electric signals with a phase difference of π / 2. The overflow pipe 100 and the cyclone chamber 110 are grounded, generating a rotating electric field in the flow field in the cylindrical section 115 of the cyclone.

[0070] The electric signal can be applied to the electrode 200 in the following way. Name the four electrode columns of the electrode 200 as A, B, C, and D in clockwise order. A sinusoidal electric signal with a phase difference of π / 2 is generated by a dual - channel signal generator and is respectively connected to the electrode column A and the electrode column B. The electric signal connected to the electrode column A is connected to the electrode column C after shifting the phase of the electric signal by π through an inverter. Similarly, the electric signal connected to the electrode column B is connected to the electrode column D through an inverter. Before the electric signals of each electrode column are connected, the electric signals are first amplified by a power amplifier.

[0071] The magnetic field system 300 includes an electromagnet cavity 301, an electromagnet coil 302, an electromagnet coil holder 303, an electromagnet iron core 304, an electromagnet cavity wire passing hole 305, and an electromagnet cavity wire passing hole cover 306. The specific structure is as shown in Figures 17 - 19 As shown, the electromagnet cavity 301, the electromagnet coil holder 303, and the electromagnet iron core 304 included in the magnetic field system 300 are arranged along the same center line; a cylinder connected to the electromagnet cavity 301 is provided at the center of the electromagnet cavity 301, and the diameter of the cylinder is the same as the inner diameter of the electromagnet iron core 304; the electromagnet coil holder 303 is used for winding the electromagnet coil 302; an electromagnet cavity wire passing hole 305 is provided on the side wall of the electromagnet cavity 301, the end face of the electromagnet cavity wire passing hole 305 is arranged parallel to the axial plane of the electromagnet cavity 301, and four uniformly distributed threaded holes are provided on the end face of the electromagnet cavity wire passing hole 305; the electromagnet cavity wire passing hole 305 is connected to the electromagnet cavity wire passing hole cover 306 by screws, and two holes with diameters slightly larger than the lead diameter of the electromagnet coil 302 are provided at the center of the electromagnet cavity wire passing hole cover 306; the magnetic field system 300 is connected to the electromagnet connection platform 113 by screws and fixed on the cyclone cavity 110.

[0072] When using a DC power supply as the electrical signal source of the electromagnet, connect the positive pole of the DC power supply to the electromagnet coil terminal A307 of the electromagnet, connect the negative pole of the DC power supply to the electromagnet coil terminal B308, connect the negative pole of the DC power supply to the electromagnet coil terminal A307 of the other opposite electromagnet, and connect the positive pole of the DC power supply to the electromagnet coil terminal B308, so as to generate a constant magnetic field in the flow field in the cylindrical section 115 of the cyclone. Connect a suitable resistor in series with the electromagnet to limit the current magnitude and prevent excessive current from damaging the electromagnet or the power supply. Connect a diode in parallel with the electromagnet lead to provide a path for the induced current in the coil when the power is off and prevent the generated back electromotive force from damaging other components in the circuit.

[0073] Connect the two leads of the electromagnet to the two wires (live wire and neutral wire) of the AC power supply. Generally, there is no need to distinguish the connection order of the live wire and the neutral wire. For the opposite electromagnets, the connection order of the live wire and the neutral wire is reversed to generate a changing magnetic field in the flow field in the cylindrical section 115 of the cyclone.

[0074] The opposite electromagnet coils can be connected to the same DC power supply. When using a series connection method, connect the negative pole of the previous coil to the positive pole of the next coil in sequence. Finally, connect the positive pole of the first coil to the positive pole of the power supply and the negative pole of the last coil to the negative pole of the power supply. In this connection method, the current passing through each coil is the same, but the voltage across each coil will be distributed according to factors such as the number of turns of the coil, and the total voltage is equal to the sum of the voltages of each coil.

[0075] When using the parallel connection method, connect the positive poles of all coils together to the positive pole of the power supply, and connect the negative poles of all coils together to the negative pole of the power supply. In the parallel connection method, the voltage across each coil is equal to the power supply voltage, and the total current is equal to the sum of the currents of each coil. When using parallel connection, the output current capacity of the power supply should be sufficient to meet the current requirements of all coils.

[0076] For a DC power supply electromagnet, the current I of a long straight solenoid electromagnet (when the length of the solenoid is much greater than its radius) can be calculated by the following formula:

[0077]

[0078] where H is the magnetic field strength, with the unit A / m, and n is the number of turns. Ignoring the transient effect of the electromagnet inductance, the voltage can be calculated by the following formula:

[0079]

[0080] where the coil resistance R can be calculated by the following formula:

[0081]

[0082] ρ is the resistivity of the coil material (unit: Ωm), l is the total length of the coil (unit: m), and s is the cross-sectional area of the coil wire (unit: m 2 ).

[0083] For an AC power supply electromagnet, the current I can be calculated by the following formula:

[0084]

[0085] The voltage can be calculated by the following formula:

[0086]

[0087] where f is the AC frequency, with the unit Hz, and L is the coil inductance, with the unit H.

[0088] The electric heating and heat preservation system includes an electric heating coil 400 and a heat preservation layer. The specific structure is as Figures 1 - 3 shown. The electric heating coil 400 is wound around the outside of the cyclone inlet pipe 112, the cyclone cylindrical section 115, the cyclone large cone section 116, the cyclone small cone section 117, and the cyclone underflow pipe 118 in sequence, and a heat preservation layer is covered outside the electric heating coil 400.

[0089] Connect the two terminals of the electric heating coil to the live wire and the neutral wire of the single-phase power supply respectively. Usually, the live wire is connected to one end of the electric heating coil, and the neutral wire is connected to the other end. Install a switch and a fuse on the live wire to cut off the power supply when needed to prevent accidents.

[0090] The power P of the electric heating coil is calculated according to the following formula:

[0091] P = P1 + P2

[0092] Where P1 is the power required to heat the oil-water emulsion to the preset temperature, which is determined by the flow rate Q, the inlet temperature T1 of the oil-water emulsion, and the preset temperature T2:

[0093] P1 = cρQ(T2 - T1)

[0094] P2 is determined by the thermal conductivity λ of the insulation layer, the thickness d of the insulation layer, the convective heat transfer coefficient h, the surface area A of the insulation layer, the ambient temperature T0, and the preset temperature T2:

[0095]

[0096] The sealing system includes gasket A500, gasket B510, and gasket C520. The specific structure is as shown in Figure 6 , 9 , 12. Gasket A500, gasket B510, and gasket C520 have the same inner diameter and outer diameter. A groove is cut in the corresponding area inside gasket B510 for inserting the electrode, and a groove is cut in the corresponding position of gasket C520 for inserting the electrode sleeve. The gasket cooperates with the flange to form an effective seal between the rotating electric field system and the hydrocyclone system. The flange connection bolts are coated with an insulating layer to prevent the electrode from causing a short circuit through the bolts or causing electric shock due to the charging of the outer wall surface of the cyclone.

[0097] The above embodiments are only used to illustrate the design concept and characteristics of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. The protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.

Claims

1. A hydrocyclone separator with synergistic enhancement of multiple fields including electricity, magnetism and heat, characterized in that, Comprising: A hydrocyclone system, including an overflow pipe (100) and a cyclone chamber (110); the overflow pipe (100) includes an outer overflow pipe (101) and an inner overflow pipe (104) arranged coaxially, and a swirl guide vane (103) is provided on the outer wall of the overflow pipe (100); the cyclone chamber (110) includes a cyclone cylindrical section (115), a cyclone large cone section (116), a cyclone small cone section (117), and a cyclone underflow pipe (118) arranged coaxially; the overflow pipe (100) is coaxially placed inside the cyclone cylindrical section (115), the outer overflow pipe (101) extends into the cyclone cylindrical section (115) and is successively connected to the swirl guide vane (103) and the inner overflow pipe (104); a cyclone inlet pipe (112) is provided tangentially at the cyclone cylindrical section (115). A rotating electric field system is provided between the overflow pipe (100) and the cyclone chamber (110) for generating a rotating electric field. A magnetic field system is provided outside the cyclone chamber (110) for generating a magnetic field. An electric heating and insulation system is provided outside the cyclone chamber (110) for applying a heating field.

2. The hydrocyclone separator with integrated multi-field synergistic enhancement of electricity, magnetism, and heat according to claim 1, wherein The rotating electric field system includes electrodes (200) and electrode sleeves (210), the electrodes (200) include at least 4 electrode columns (204) arranged in an array, and the electrode columns (204) are arranged parallel to each other along the axis; the electrode sleeves (210) include at least 4 electrode sleeve columns (212) arranged in an array to wrap the electrode columns (204).

3. The hydrocyclone separator with multi-field collaborative enhancement of electricity, magnetism and heat according to claim 2, characterized in that An electrode insulation layer (203) is provided between adjacent electrode columns (204) to separate the electrodes (200) into non-connected conductive regions.

4. The hydrocyclone separator with integrated electro-magnetic-thermal multi-field synergistic enhancement according to claim 2, characterized in that, The electrode sleeve columns (212) near the inner swirl guide vane (103) completely wrap the electrode columns (204), and the electrode sleeve columns (212) in the remaining part semi-encase the electrode columns (204).

5. The hydrocyclone separator with integrated electric-magnetic-thermal multi-field synergistic enhancement according to claim 2, characterized in that Adjacent two of the electrode columns (204) are applied with sine electric signals having a phase difference of 2π / N, where N is the number of electrode columns (204) arranged in an array, and the overflow pipe (100) and the cyclone chamber (110) are grounded to generate a rotating electric field in the flow field inside the cyclone cylindrical section (115).

6. The hydrocyclone separator with combined electro-magnetic-thermal multi-field synergistic enhancement according to claim 2, characterized in that The outer overflow pipe (101), the electrodes (200) and the electrode sleeves (210) are connected by flanges, and gaskets are provided between adjacent flanges.

7. The hydrocyclone separator with multi-field collaborative enhancement of electricity, magnetism and heat according to claim 1, characterized in that The magnetic field system (300) includes an electromagnet chamber (301), an electromagnet coil (302), an electromagnet coil holder (303), and an electromagnet iron core (304). The electromagnet iron core (304) is arranged inside the electromagnet chamber (301), an electromagnet coil holder (303) is arranged outside the electromagnet iron core (304), and an electromagnet coil (302) is arranged on the electromagnet coil holder (303). The electromagnet coil (302) is connected to a DC power supply or an AC power supply.

8. The hydrocyclone separator with multi-field collaborative enhancement of electricity, magnetism and heat according to claim 1, characterized in that, The electric heating and heat preservation system includes an electric heating coil (400) and a heat preservation layer. The electric heating coil (400) is successively wound around the outer sides of the inlet pipe (112) of the cyclone, the cylindrical section (115) of the cyclone, the large cone section (116) of the cyclone, the small cone section (117) of the cyclone, and the underflow pipe (118) of the cyclone, and a heat preservation layer is coated on the outer side of the electric heating coil (400).

9. The hydrocyclone separator with multi-field collaborative enhancement of electricity, magnetism and heat according to claim 1, characterized in that, The swirl guide vane (103) includes at least four guide vanes. The root of the swirl guide vane (103) is connected to the outer wall surface of the overflow pipe of the oil-water cyclone separator, and the tip of the swirl guide vane (103) contacts the inner wall surface of the cylindrical section (115) of the oil-water cyclone separator.

10. The hydrocyclone separator with combined electro-magnetic-thermal multi-field synergistic enhancement according to claim 9, characterized in that, The swirl guide vane (103) is designed by the geometric method, adopts arc orthogonal blades, and the directrix is composed of an arc line and a straight line segment to form a gradually shrinking flow channel.

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