Multiphase electrostatic coalescence supercritical fluid separation device

Abstract

The invention relates to a multiphase electrostatic coalescence supercritical fluid separation device which comprises a horizontal tank body, and a transverse partition plate is arranged in the horizontal tank body and divides the space in the horizontal tank body into a main flow channel and a liquid collection flow channel which are distributed up and down; a plurality of vertical plates which are distributed at intervals in the flowing direction are arranged in the main flow channel, a plurality of first through holes are uniformly distributed in the vertical plates, a first-stage sub-cavity is formed between every two adjacent vertical plates, and an electrode array is arranged in each stage of sub-cavity; a plurality of second through holes are formed in the area, located in the last stage or multiple stages of sub-cavities, of the transverse partition plate. The integrated transformer is electrically connected with the electrode array in each sub-cavity through a first cable, and an insulating layer is arranged on the surface of the electrode array; the electrode arrays of two adjacent stages of sub-cavities are connected through a second cable; and each vertical plate is communicated with a zero potential surface. Dissolved water in the supercritical fluid can be efficiently separated, the water removal rate is high, and the electrode protection performance is good.

Description

Technical Field

[0001] The present invention relates to the technical field of two-phase separation, and in particular to a multiphase electrostatic coalescence supercritical fluid separation device. Background Art

[0002] At present, the development of new energy in China has entered a new stage, and geothermal power generation shows great development space. Under this background, in order to improve the thermal efficiency of the working fluid cycle, a plume geothermal exploitation system using supercritical carbon dioxide (sCO2) as the working fluid, namely the CPG (CO2-plume geothermal system) system, has received wide attention. However, sCO2 carries a large amount of moisture and corrosive ions at the outlet well, which not only corrodes machinery but also increases energy consumption, severely restricting the practical application of the CPG system. Therefore, it is necessary to separate the moisture in sCO2. However, traditional two-phase separation devices have many limitations. For example, a cyclone separator cannot handle the dissolved water in supercritical fluids. A membrane separator is limited by factors such as the filter membrane material and service life. Relying solely on a cyclone separator or a membrane separator, it is difficult to make sCO2 reach the purity required for turbine work.

[0003] In the prior art, there are some devices for separating multiphase fluids using the principle of electrostatic coalescence, including devices for treating oil-water emulsions with a wide water content range at normal temperature, normal pressure, and low-speed flow. Its working principle is to apply a high voltage to a bare metal electrode, and use the polarization effect to promote the water droplets to approach each other, improve the collision frequency and intensity of the water droplets, thereby strengthening the coalescence of the water droplets in the oil. The problems it has include: since the water droplet coalescence process and the gravity sedimentation process proceed simultaneously, in order to ensure the separation effect, a separator pipeline of sufficient length is required, which reduces the separation efficiency of the fluid per unit volume. At the same time, the frequent occurrence of the "collapse of the electric field" phenomenon is likely to occur when using a bare metal electrode, and the safe and stable operation of the electro-dehydrator cannot be guaranteed.

[0004] The sCO2 and water mixture in the plume geothermal system has the characteristics of high temperature, high pressure, and high-speed flow, and there is a large difference in the water content in different laminar flows. When separating using the above-mentioned existing separation devices, problems such as temperature deviation and pressure unevenness will occur inside the device, resulting in a high water content in the fluid and poor consistency in the water content or removal rate of each layer of fluid. That is, the residual water content in the sCO2 discharged from the outlet of the separation device is different, resulting in the inability to directly enter the turbine of the generator set to do work. And there are also problems such as low separation efficiency, short circuit of the coalesced water chain, and easy breakdown of the electrode plate for the separation of multiphase fluids under supercritical conditions. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a multiphase electrostatic coalescence supercritical fluid separation device, which solves the technical problem of poor separation effect of moisture in supercritical multiphase flow by existing separation devices.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A multiphase electrostatic coalescence supercritical fluid separation device includes a horizontal tank body, inside which there is a transverse partition board that divides the space inside the horizontal tank body into a main flow channel and a liquid collection flow channel distributed vertically;

[0008] In the main flow channel, there are several vertical plates spaced at intervals along the flow direction. A number of first through holes are evenly distributed on the vertical plates. A first-level sub-cavity is formed between two adjacent vertical plates. An electrode array is provided in each sub-cavity. The adjacent two-level sub-cavities are connected through the first through holes; the inlet of the first-level sub-cavity is used to introduce the mixture of sCO2 and water in the plume geothermal system;

[0009] In the area where the transverse partition board is located at the last level or multiple levels of the sub-cavities, there are several second through holes, which are used to discharge the water separated in the main flow channel to the liquid collection flow channel, and the liquid collection flow channel is used to discharge the separated water;

[0010] It further includes an integrated transformer, which is electrically connected to the electrode arrays in each sub-cavity through a first cable respectively, and an insulating layer is provided on the surface of the electrode array; the electrode arrays between two adjacent levels of sub-cavities are connected through a second cable; each vertical plate is connected to the zero potential surface.

[0011] The further technical solution is:

[0012] The electrode array is located on the cross-section of the horizontal tank body and is in a fishbone shape, including two electrode groups arranged symmetrically left and right. Each electrode group includes multiple electrodes arranged at equal intervals in the height direction, and the electrodes are cylindrical.

[0013] The two electrode groups arranged symmetrically left and right are arranged on a central insulating frame fixed inside the horizontal tank body. One axial end of the electrode is connected to the central insulating frame, and the other end extends to the inner wall of the horizontal tank body.

[0014] The distance between two adjacent electrodes in the height direction is 30 - 50 mm.

[0015] The vertical plates are located on the cross-section of the horizontal tank body. The electrode arrays in two adjacent sub-cavities are symmetrically distributed with the vertical plate at their interval as the center, so that a converging electric field is formed on each vertical plate.

[0016] Each vertical plate is provided with several conductivity probes, and the several conductivity probes are spaced at intervals along the height direction of the vertical plate; the conductivity probes are connected to an external display device through signal lines.

[0017] The outlet of the last-level sub-cavity is connected to the turbine inlet of the supercritical carbon dioxide unit.

[0018] The opening ratio of the first through-holes on each of the vertical plates is 60% to 85%; the first through-holes are square holes with a side length of 20 mm.

[0019] The several first through-holes on each of the vertical plates are arranged in an array; the lowermost first through-holes are located at the bottom edge of the vertical plates.

[0020] The integrated transformer is arranged on the top of the horizontal tank body through an insulating bracket;

[0021] The integrated transformer can output a DC pulse voltage, the pulse frequency is 50 to 1500 Hz, and the peak voltage is 0.8 to 50,000 volts.

[0022] The beneficial effects of the present invention are as follows:

[0023] The present invention is a device that can use electrostatic coalescence to separate water under supercritical conditions. Through the principle of dielectrophoretic coalescence, water droplets are coalesced, and the dissolved water in the supercritical fluid can be efficiently separated, the moisture content of the working medium can be greatly reduced, and the consistency of the moisture content in each layer of fluid can be improved. Moreover, the moisture removal rate per unit fluid is high and the electrode protection performance is good, effectively avoiding problems such as electric breakdown and water chain short circuit. Specifically, it has the following advantages:

[0024] The present invention forms a multi-stage sub-cavity through vertical plates, and an electrode array is arranged in each sub-cavity, which not only enhances the dielectrophoretic coalescence effect and ensures that the fluid receives sufficient dielectrophoretic force, but also due to the superposition of the front and rear radial electric field forces formed on each vertical plate, water chains are more likely to gather on the vertical plates for centralized collection. Among them, when the main fluid passes through the vertical plates, the uniformly distributed first through-holes on it, on the one hand, enable different fluid layers with large differences in moisture content to be fully mixed, and the mixing effect reduces the moisture difference between the upper and lower layers of the fluid, so that the water chains that are not easily deposited in the upper layer of the fluid are exchanged to the lower layer of the fluid, realizing the full mixing of water chains with different lengths and different flow field properties. Without the mixing effect, it is possible that the water chains still remain in the supercritical fluid after electrostatic coalescence. On the other hand, it is beneficial for the aggregated moisture to penetrate through the first through-holes nearby into the lower-level sub-cavity, further making the moisture removal rates of each layer of fluid consistent, avoiding concentration unevenness and pressure unevenness in different levels of the fluid. Finally, the discharged supercritical carbon dioxide fluid has the same concentration and pressure in each layer, and can be directly input into the turbine to meet the work requirement.

[0025] The electrode array of the present invention is a fishbone-like structure composed of cylindrical electrodes. The cylindrical electrodes can form a uniformly radiating electric field, maximizing the use of the dielectrophoresis principle to promote the coalescence of water chains. The fishbone-like structure makes full use of the cross-sectional area of the horizontal tank, increasing the proportion of fluid separated under a unit flow rate. Moreover, a symmetric separation effect is formed on the cross-section, reducing the pressure unevenness caused by the concentration difference of the fluid. In the length direction of the horizontal tank, the electrode array and the vertical plates are arranged alternately, making the direction of water chain formation consistent with the fluid flow direction, increasing the time under the action of the electric field force, and improving the droplet separation ratio.

[0026] The present invention provides multiple sub-chambers for multi-stage dielectrophoretic coalescence. For water chains that are too short in length and too small in volume, secondary coalescence can be carried out. For the problem of incomplete fluid separation caused by too fast flow rate or uneven flow field distribution in the upper-level sub-chamber, the lower-level sub-chamber can perform secondary separation, improving the separation effect.

[0027] The present invention improves the sensitivity of potential monitoring through a conductance probe embedded in the vertical plate. The signal line connected to the conductance probe can transmit the water level change in the horizontal cylinder to an external display device in real time, and the display device can operate on the transformer controller to change the specific parameters of the transformer (such as adjusting the floating value of the pulsed voltage), thereby adjusting the coalescence intensity and avoiding the problem of electrode breakdown current short circuit caused by too long water chains due to too large pulsed voltage, resulting in direct connection between the high and low voltage electrodes at both ends.

[0028] An insulating layer is provided on the surface of the electrode array of the present invention, and the vertical plate is connected to the zero potential surface, featuring high temperature resistance and corrosion resistance.

[0029] Other features and advantages of the present invention will be described in the subsequent specification or understood by implementing the present invention. Brief Description of the Drawings

[0030] Figure 1 It is a schematic three-dimensional structure diagram of an embodiment of the present invention.

[0031] Figure 2 It is the front view of an embodiment of the present invention.

[0032] Figure 3 It is the top view of an embodiment of the present invention.

[0033] Figure 4 It is Figure 3 the cross-sectional view taken along line A-A in

[0034] Figure 5 It is Figure 4 the enlarged view of part A in

[0035] In the figure: 1. Integrated transformer; 2. Insulating support; 3. Insulating pad; 4. Horizontal tank body; 5. Electrode array; 6. Diaphragm; 7. Liquid collection flow channel; 8. Vertical plate; 9. Central insulating frame; 10. First cable; 11. Drain pipe; 12. Main flow channel; 13. Conductivity probe; 501. Electrode; 601. Second through hole; 801. First through hole. Specific implementation mode

[0036] The specific implementation mode of the present invention will be described below in conjunction with the accompanying drawings.

[0037] See Figures 1 to 4 , the multiphase electrostatic coalescence supercritical fluid separation device of this embodiment includes a horizontal tank body 4, inside which there is a diaphragm 6, which divides the space inside the horizontal tank body 4 into a main flow channel 12 and a liquid collection flow channel 7 distributed up and down;

[0038] A number of vertical plates 8 are arranged at intervals along the flow direction in the main flow channel 12. A number of first through holes 801 are evenly distributed on the vertical plates 8. A primary sub-cavity is formed between two adjacent vertical plates 8. An electrode array 5 is provided in each stage of sub-cavity, and the adjacent two-stage sub-cavities are communicated through the first through holes 801; the inlet of the first-stage sub-cavity is used to introduce the multiphase supercritical fluid at the outlet of the plume geothermal system, that is, the mixture of sCO2 and water;

[0039] The diaphragm 6 is provided with a number of second through holes 601 in the area of the last stage or multiple stages of sub-cavities, which are used to discharge the water separated in the main flow channel 12 to the liquid collection flow channel 7, and the liquid collection flow channel 7 is used to discharge the separated water;

[0040] It also includes an integrated transformer 1, which is electrically connected to the electrode arrays 5 in each sub-cavity through the first cable 10, and an insulating layer is provided on the surface of the electrode array 5; the electrode arrays 5 between two adjacent stages of sub-cavities are connected through a second cable; each vertical plate 8 is connected to the zero potential surface.

[0041] The working principle of this embodiment is as follows:

[0042] The integrated transformer 1 outputs a high-voltage pulse signal, which is conducted to each electrode array 5 through the first cable 10. At the same time, each electrode array 5 ensures that the voltage in each sub-cavity is consistent through the second cable. The multiphase supercritical fluid at the outlet of the plume geothermal system flows along Figure 4In the direction indicated by the straight-line arrow, it enters the main flow channel 12 from the inlet of the first-stage sub-cavity. The multiphase supercritical fluid is subjected to a radial electric field centered on the electrode array 5, and the water therein coalesces into water chains of different lengths through dielectrophoresis (a form in which large droplets are connected, with a relatively large volume mass). And the vertical plate 8 itself is connected to the zero-potential surface. Therefore, a converging electric field is formed on the vertical plate 8 between two adjacent upper and lower electrode arrays 5, causing more water chains to gather on the vertical plate 8. The water chains penetrate the fluid in the laminar flow state under the action of gravity and enter the lower layer of the multiphase fluid. When flowing through the first through-hole 801, under the action of the inflow fluid pressure, it moves towards the lower-stage sub-cavity. Then it continues to converge on the vertical plate 8 of the lower-stage sub-cavity, and then sinks under the action of gravity. When flowing downward through the first through-hole 801, it again moves towards the lower-stage sub-cavity under the action of the inflow fluid pressure. When flowing to the last few or the last stage of the sub-cavity, most of the separated water is at the lower part of the main flow channel 12 and can be discharged into the liquid collection flow channel 7 through the second through-hole 601 on the transverse partition plate 6, as Figure 4 indicated by the curved arrow in the figure. Finally, the separated water can be discharged through the liquid collection flow channel 7. The supercritical carbon dioxide from which the water has been separated flows out of the separation device along Figure 4 the direction indicated by the straight-line arrow in the figure and enters the downstream equipment.

[0043] Among them, the water content in each flow layer of the multiphase supercritical fluid at the outlet of the plume geothermal system is usually inconsistent. When the main fluid flows through the vertical plate 8, the first through-hole 801 can fully mix different fluid layers with a large difference in water content. And the water separated from each layer of fluid can pass through the adjacent first through-hole 801 to the next lower-stage sub-cavity nearby. After passing through multiple stages of sub-cavities, the consistency of the water content in each layer of fluid can be improved. This enables the outlet of the multiphase electrostatic coalescence supercritical fluid separation device in this embodiment, that is, the outlet of the last-stage sub-cavity, to be preferably directly connected to the turbine inlet of the supercritical carbon dioxide unit. Among them, the main fluid refers to the fluid that is not affected by the dielectrophoretic force.

[0044] Among them, a multi-stage sub-cavity is formed by arranging the vertical plate 8 and the electrode array 5 in an alternating manner along the axial direction of the horizontal tank body 4. A radial electric field is formed in front of and behind each vertical plate 8, greatly strengthening the dielectrophoresis effect. After partial separation in the upper-stage sub-chamber, it then enters the lower-stage sub-chamber for further separation, thereby greatly increasing the water content of the separated fluid.

[0045] As a preferred method, the electrode array 5 is located on the cross-section of the horizontal tank body 4 (i.e., parallel to the cross-section) and is in a fishbone shape, including two electrode groups symmetrically arranged on the left and right. Each electrode group includes multiple electrodes 501 arranged at equal intervals in the height direction.

[0046] As a preferred embodiment, the vertical plate 8 is located on the cross-section of the horizontal tank body 4 (i.e., parallel to the cross-section), and the electrode arrays 5 in two adjacent sub-chambers are symmetrically distributed with the vertical plate 8 at the interval center, so that a converging electric field is formed on each vertical plate 8, further improving the electrostatic adsorption performance of the vertical plate 8.

[0047] As a preferred embodiment, two electrode groups arranged symmetrically on the left and right of the electrode array 5 are provided on the central insulating frame 9 fixed in the horizontal tank body 4. One axial end of the electrode 501 is connected to the central insulating frame 9, and the other end extends to the inner wall of the horizontal tank body 4. Among them, the cross-section of the horizontal tank body 4 is preferably circular.

[0048] Among them, the central insulating frame 9 is preferably fixed on the vertical central plane of the horizontal tank body 4.

[0049] Among them, the electrode 501 is preferably perpendicular to the central insulating frame 9.

[0050] Among them, the distance (distance between the axes) between two adjacent electrodes 501 in the height direction is 30 - 50 mm, preferably 40 mm.

[0051] Among them, the electrode 501 is preferably cylindrical. And the edges are rounded to avoid the problem of electrode breakdown caused by tip discharge.

[0052] Among them, the circumferential side wall of the electrode 501 is coated with an insulating layer with a thickness of 0.1 mm. The insulating layer can ensure the service life and performance of the electrode and the vertical plate 8 under the impact of high-voltage electric pulses. The dielectric constant of the insulating layer material is preferably 2 - 8, the heat-resistant temperature is preferably 400 - 500 °C, and the corrosion resistance is good.

[0053] As a preferred embodiment, the opening ratio of the first through holes 801 of each vertical plate 8 is 60% - 85%; the first through holes 801 are preferably square holes with a side length of 20 mm.

[0054] As a preferred embodiment, a plurality of first through holes 801 on each vertical plate 8 are arranged in an array; the lowermost first through holes 801 are preferably located at the bottom edge of the vertical plate 8 to allow the fluid to smoothly enter the next-stage sub-chamber and avoid bottom accumulation.

[0055] As a preferred embodiment, the vertical plate 8 is made of epoxy resin by casting.

[0056] As a preferred embodiment, the bottoms of the vertical plates 8 are flush and arranged in parallel.

[0057] As a preferred embodiment, the vertical plate 8 is embedded with a wire connected to the zero potential point, so as to realize connection with the zero potential surface.

[0058] As a preferred embodiment, as Figure 5As shown, the second through-holes 601 are evenly distributed in the area of the transverse partition 6 located in the last stage or the last few sub-chambers. In this embodiment, the second through-holes 601 are only provided in the last one or several sub-chambers to prevent the fluid with uncompletely separated moisture from directly entering the liquid collection channel 7 from the previous sub-chambers if they are set too far forward. It can be understood that the transverse partition 6 penetrates the horizontal tank body 4 along the length direction of the main flow channel 12. As a preferred method, the transverse partition 6 is formed by splicing a plurality of unit plates, which is convenient for installation and maintenance.

[0059] As a preferred method, a drain pipe 11 is provided at the bottom of the liquid collection channel 7, and the drain pipe 11 is connected to a water pump. Under the action of negative pressure, the moisture in the liquid collection channel 7 is pumped out. The reference power of the water pump is 40 - 100 kW, and the power supply method can be selected from internal power supply of the plume geothermal system or power grid power supply.

[0060] As a preferred method, the integrated transformer 1 is arranged on the top of the horizontal tank body 4 through an insulating bracket 2; preferably, an insulating pad 3 is provided on the insulating bracket 2, which is used to isolate the dissipation of high electric potential to the horizontal tank body 4.

[0061] As a preferred method, the surface of the horizontal tank body 4 is subjected to insulation treatment.

[0062] As a preferred method, the integrated transformer 1 can output a DC pulse voltage, the pulse frequency is 50 - 1500 Hz, and the peak voltage is 0.8 - 50,000 volts. During the use of the integrated transformer 1, it is connected to an external controller, and the parameters of the integrated transformer 1 can be adjusted by controlling the external controller.

[0063] See Figure 5 , as a preferred method, a number of conductivity probes 13 are provided on each vertical plate 8, and the number of conductivity probes 13 are spaced apart along the height direction of the vertical plate 8; the conductivity probes 13 are connected to an external display device through signal lines.

[0064] During the electrostatic separation process of the multi-stage sub-chambers, the conductivity probes 13 can detect the change in the conductivity of the fluid, thereby real-time monitoring the average length of the water chains in the fluid, and transmitting the water level fluctuation situation in the horizontal tank to the external display device in real time through the signal lines. The operator can operate the controller of the integrated transformer 1 through the display device to change the transformer parameters to avoid the problem of current short circuit caused by too long water chains due to excessive pulse voltage.

[0065] In summary, the present invention improves the moisture removal rate, fully mixes the fluid layers with different water contents, realizes the centralized recovery of water chains; real-time monitors the water level; prevents the breakdown of the electrode plates, and avoids energy loss and safety problems through insulation treatment. At the same time, according to the density characteristics of the supercritical fluid, the coalesced droplets are effectively discharged.

[0066] Those of ordinary skill in the art can understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multiphase electrostatic coalescence supercritical fluid separation device, characterized in that: It comprises a horizontal tank body (4) in which a transverse partition (6) is arranged to divide the space inside the horizontal tank body (4) into a main flow channel (12) and a liquid collection channel (7) distributed upward and downward; A plurality of vertical plates (8) are arranged in the main flow channel (12) at intervals along the flow direction, a plurality of first through holes (801) are evenly distributed on the vertical plates (8), a first-stage sub-cavity is formed between two adjacent vertical plates (8), an electrode array (5) is arranged in each stage of the sub-cavity, and two adjacent stages of the sub-cavities are connected via the first through holes (801); the inlet of the first-stage sub-cavity is used to introduce a mixture of sCO2 and water in the plume geothermal system; The transverse partition (6) is provided with a plurality of second through holes (601) in the area located at the last stage or multiple stages of the sub-cavities, which are used to discharge the water separated in the main flow channel (12) to the liquid collection flow channel (7), and the liquid collection flow channel (7) is used to discharge the separated water; It also comprises an integrated transformer (1), which is electrically connected to the electrode array (5) in each sub-cavity through a first cable (10), and an insulating layer is provided on the surface of the electrode array (5); the electrode arrays (5) of two adjacent sub-cavities are connected through a second cable; and each of the vertical plates (8) is connected to the zero potential surface.

2. The multiphase electrostatic coalescence supercritical fluid separation device according to claim 1, characterized in that: The electrode array (5) is located on the cross section of the horizontal tank body (4) and is in a fishbone shape, comprising two electrode groups arranged symmetrically on the left and right, each electrode group comprising a plurality of electrodes (501) arranged at equal intervals in the height direction, and the electrodes (501) are cylindrical.

3. The multiphase electrostatic coalescence supercritical fluid separation device according to claim 2, characterized in that: The two electrode groups symmetrically arranged on the left and right are arranged on a central insulating frame (9) fixed in the horizontal tank body (4); one axial end of the electrode (501) is connected to the central insulating frame (9) and the other end extends to the inner wall of the horizontal tank body (4).

4. The multiphase electrostatic coalescence supercritical fluid separation device according to claim 2, characterized in that: The distance between two adjacent electrodes (501) along the height direction is 30-50 mm.

5. The multiphase electrostatic coalescence supercritical fluid separation device according to claim 1, characterized in that: The vertical plate (8) is located on the cross section of the horizontal tank body (4), and the electrode arrays (5) in two adjacent sub-cavities are symmetrically distributed with the vertical plate (8) at the interval between them as the center, so that a converging electric field is formed on each of the vertical plates (8).

6. The multiphase electrostatic coalescence supercritical fluid separation device according to claim 1, characterized in that: A plurality of conductivity probes (13) are arranged on each of the vertical boards (8), and the plurality of conductivity probes (13) are distributed at intervals along the height direction of the vertical board (8); the conductivity probes (13) are connected to an external display device via a signal line.

7. The multiphase electrostatic coalescence supercritical fluid separation device according to claim 1, characterized in that: The outlet of the sub-chamber of the last stage is connected to the turbine air inlet of the supercritical carbon dioxide unit.

8. The multiphase electrostatic coalescence supercritical fluid separation device according to claim 1, characterized in that: The opening rate of the first through hole (801) of each vertical plate (8) is 60% to 85%; the first through hole (801) is a square hole with a side length of 20 mm.

9. The multiphase electrostatic coalescence supercritical fluid separation device according to claim 1, characterized in that: The plurality of first through holes (801) on each of the vertical plates (8) are distributed in an array; the first through hole (801) at the bottom is located at the bottom edge of the vertical plate (8).

10. The multiphase electrostatic coalescence supercritical fluid separation device according to claim 1, characterized in that: The integrated transformer (1) is arranged on the top of the horizontal tank body (4) via an insulating bracket (2); The integrated transformer (1) can output a direct current pulse voltage with a pulse frequency of 50 to 1500 Hz and a peak voltage of 8,000 to 50,000 volts.

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