CN107262288B - Electrostatic purification device with metal particles - Google Patents
Electrostatic purification device with metal particles Download PDFInfo
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- CN107262288B CN107262288B CN201710625844.9A CN201710625844A CN107262288B CN 107262288 B CN107262288 B CN 107262288B CN 201710625844 A CN201710625844 A CN 201710625844A CN 107262288 B CN107262288 B CN 107262288B
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- metal particles
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- box body
- cleaning apparatus
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- 239000002923 metal particle Substances 0.000 title claims abstract description 73
- 238000000746 purification Methods 0.000 title abstract description 40
- 238000004140 cleaning Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 15
- 230000032683 aging Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 24
- 230000005684 electric field Effects 0.000 description 22
- 238000000034 method Methods 0.000 description 17
- 239000002245 particle Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 239000003989 dielectric material Substances 0.000 description 6
- 239000011258 core-shell material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 2
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052454 barium strontium titanate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C5/00—Separating dispersed particles from liquids by electrostatic effect
- B03C5/02—Separators
- B03C5/022—Non-uniform field separators
- B03C5/024—Non-uniform field separators using high-gradient differential dielectric separation, i.e. using a dielectric matrix polarised by an external field
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- Electrostatic Separation (AREA)
Abstract
The invention discloses an electrostatic purification device with metal particles, which comprises a box body, wherein the box body is provided with an inlet and an outlet, electrode plates are distributed between the inlet and the outlet in the box body, the polarities of electrodes of adjacent electrode plates are opposite, and each electrode plate is uniformly distributed with oil passing holes; and the magnetic field is applied in the box body, so that the metal particles are respectively attached to the same side of the corresponding electrode plate. The electrostatic purification device with the metal particles is novel in structure and easy to realize, forms a high gradient field by matching with the electrode plate, effectively improves the oil purification effect and the oil purification efficiency, and has the advantages of high temperature resistance, ageing resistance, long service life, lower cost and the like.
Description
Technical Field
The invention belongs to the technical field of purification equipment, and particularly relates to an electrostatic purification device with metal particles.
Background
The petroleum contains harmful impurities such as sulfur, nitrogen, oxygen compounds, trace metals and the like, and the existence of the impurities can accelerate the corrosion of equipment in the use process and influence the normal operation of the equipment. At present, the petroleum purification technology mainly comprises a chemical method, a heat treatment method and a physical method. The chemical method can remove part of metal impurities, but is easy to introduce new impurities to cause secondary pollution. Although the heat treatment method can reduce the viscosity of the oil, improve the flow rate and remove the gas in the oil, the energy consumption is high, and the purification cost is higher. The existing physical methods comprise two major types, namely a mechanical filtration method and an electrostatic purification method, wherein the mechanical filtration method can effectively remove harmful impurities in the oil liquid and does not introduce other impurities, but the mechanical filtration method can only filter out particle impurities with the particle size of more than 5 mu m, so that the purification degree of the oil liquid is not high. The electrostatic purification method can even remove particle impurities below 0.01 mu m in the oil, and the oil has high purification capacity and low energy consumption.
However, the existing electrostatic purification method has a poor purification effect on oil, and in order to improve the electrostatic purification capability, people fill a charge medium in the oil to form a high gradient field, so as to achieve a better purification effect. However, in order to avoid the problem of short circuit of the electrode plates, people do not adopt a metal material with a very high dielectric constant to replace a dielectric, but adopt an organic dielectric material, the organic dielectric material is mainly used for improving the insulation breakdown voltage of oil so as to further increase an electric field and obtain a better effect of adsorbing impurity particles, the dielectric constant of the organic dielectric material is very small (generally not more than 5), and the organic dielectric material has poor high-temperature aging resistance, short service life and high cost. Inorganic materials, such as barium titanate, barium strontium titanate and other inorganic dielectric materials, may also be used, and the dielectric constant may reach thousands or even tens of thousands. The preparation process is complicated, and the small particles cause contamination (putting the inorganic dielectric materials into oil, which is equivalent to adding impurities into oil, the particles of barium titanate, etc. prepared by the conventional method have non-uniform size and irregular shape, and the fine particles are difficult to remove even if a filter screen is applied). Therefore, the filling particles made of metal materials are considered, and although the metal has extremely high dielectric constant, high temperature resistance and aging resistance, the metal filling particles are easy to cause short circuit of the electrode plate, so that the filling particles cannot be practically applied at all times. It is urgent to solve the above problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides the electrostatic purification device with the metal particles, which is matched with the electrode plate to form a high gradient field, so that the oil purification effect and the oil purification efficiency are effectively improved.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides an electrostatic purifier with metal particle, includes the box, its main points lie in: the box body is provided with an inlet and an outlet, electrode plates are distributed between the inlet and the outlet in the box body, the polarities of the electrodes of the adjacent electrode plates are opposite, and each electrode plate is provided with an oil passing hole; and the magnetic field is applied in the box body, so that the metal particles are respectively attached to the same side of the corresponding electrode plate.
By adopting the structure, a larger gradient electric field can be generated between the adjacent electrode plates through the metal particles, the oil liquid purification efficiency and the oil liquid purification effect are greatly improved, and meanwhile, the metal particles not only have extremely large dielectric constants, but also have the advantages of high temperature resistance, ageing resistance, long service life, lower cost and the like; the metal particles are attached to the same side of each electrode plate, so that the metal particles can be prevented from being communicated with the electrode plates with opposite polarities of the two adjacent electrodes to cause short circuit, and the safety and the reliability are ensured; in addition, the oil passing holes are densely distributed on the electrode plate, so that oil to be filtered can smoothly pass through the oil passing holes, and metal particles can be prevented from being separated out.
Preferably, the method comprises the following steps: and a permanent magnet or an electromagnet (only an N pole or an S pole) is arranged on one side of the inlet or the outlet of the box body. By adopting the structure, the metal particles are attached to the same side of the electrode plate under the attraction of the permanent magnet or the electromagnet.
Preferably, the method comprises the following steps: the electrode plates adopt permanent magnets capable of conducting electricity, and the magnetic pole directions of the electrode plates are the same. By adopting the structure, the metal particles are adsorbed on the same side of the electrode plate.
Preferably, the method comprises the following steps: the electrode plate is an electromagnet and can generate magnetism after being electrified. By adopting the structure, the metal particles are adsorbed on the same side of the electrode plate.
Preferably, the method comprises the following steps: the metal particles are all spherical. By adopting the structure, a point electric field is formed, the electric field gradient is further increased, and the oil liquid purification efficiency is improved.
Preferably, the method comprises the following steps: the diameters of the metal particles on the same electrode plate are the same. By adopting the structure, the preparation of materials is reduced, the production cost is reduced, and the reloading and cleaning efficiency is improved.
Preferably, the method comprises the following steps: the diameter of the metal particles on the electrode plate near the inlet is larger than the diameter of the metal particles on the electrode plate near the outlet. Structure more than adopting, the great metal particle of size can adsorb or block the great impurity of size, and the near electric field gradient of the little metal particle of size is bigger, can adsorb the impurity that is more difficult to polarize, and the diameter through filling the granule is progressively reduced step by step, can adsorb the impurity of various differences, obtains better purifying effect.
Preferably, the method comprises the following steps: the metal particles on each electrode plate have at least two diameters. By adopting the structure, impurities with different sizes and different polarities can be effectively adsorbed, and the purification effect is improved.
Preferably, the method comprises the following steps: the adjacent electrode plates are parallel to each other or have an included angle. By adopting the structure, the electrode plates are parallel to each other and are easier to assemble, and the gradient of an electric field can be further increased by forming included angles between the adjacent electrode plates.
Preferably, the method comprises the following steps: the distance between the adjacent electrode plates is gradually reduced from the inlet to the outlet. By adopting the structure, the distance between the electrode plates near the inlet is larger, the electric field is weaker, the charged impurities or the impurities with stronger purification capacity can be purified, the electric field generated between the electrode plates is gradually increased along with the gradual reduction of the distance between the electrode plates, the impurities which are more difficult to be polarized can be polarized, and the impurities with weaker polarization capacity can be adsorbed.
Compared with the prior art, the invention has the beneficial effects that:
the electrostatic purification device with the metal particles is novel in structure and easy to realize, forms a high gradient field by matching with the electrode plate, effectively improves the oil purification effect and the oil purification efficiency, and has the advantages of high temperature resistance, ageing resistance, long service life, lower cost and the like.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a fourth embodiment of the present invention;
FIG. 5 is a schematic view of an electrode plate with single diameter electrolyte particles attached thereto;
FIG. 6 is a schematic illustration of an electrode plate with two diameters of electrolyte particles attached;
FIG. 7 is a schematic structural view of an electrode plate;
fig. 8 is a schematic view of the internal structure of the metal particle having the core-shell structure.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
An electrostatic purification device with metal particles comprises a box body 1, wherein an inlet 11 and an outlet 12 are arranged on the box body 1, electrode plates 2 are distributed between the inlet 11 and the outlet 12 in the box body 1, the electrode polarities of adjacent electrode plates 2 are opposite, and oil passing holes 21 are distributed on each electrode plate 2; the metal particles 3 which can be magnetized are arranged between the adjacent electrode plates 2, the outer diameters of the metal particles 3 are all larger than the aperture of the oil passing hole 21, and a magnetic field is applied in the box body 1, so that the metal particles 3 are respectively attached to the same side of the corresponding electrode plates 2. The metal particles 3 can generate a larger gradient electric field between the adjacent electrode plates 2, so that the oil liquid purification efficiency and the oil liquid purification effect are greatly improved, and meanwhile, the metal particles 3 not only have extremely large dielectric constants, but also have the advantages of high temperature resistance, ageing resistance, long service life, lower cost and the like; the metal particles 3 are attached to the same side of each electrode plate 2, so that the metal particles 3 can be prevented from being communicated with the electrode plates 2 with two adjacent electrodes with opposite polarities to cause short circuit, and the safety and the reliability are ensured; in addition, the oil passing holes 21 are densely distributed on the electrode plate 2, so that oil to be filtered can smoothly pass through the oil passing holes, and the metal particles 3 can be prevented from being separated.
Referring to fig. 1 to 7, the box 1 may be square, rectangular, cylindrical or any other shape. When the case 1 has a square or rectangular parallelepiped shape, the electrode plates 2 are preferably square or rectangular, and the electrode plates 2 are coated with an insulating protective layer 22 to prevent the electrode plates from being corroded.
Specifically, the electrode plates 2 may be parallel to each other, or adjacent electrode plates 2 may have an included angle therebetween (i.e., the electrode plates 2 are disposed obliquely to each other), and when the included angle is formed between the adjacent electrode plates 2, a non-uniform electric field can be generated. In addition, the adjacent electrode plates 2 may be equally spaced or non-equally spaced, and the structure of the electrode plates 2 with unequal spacing has an advantage over the structure of the electrode plates 2 with equal spacing. Because the impurity kind is more in the fluid, lead to the size difference of impurity, the polarization intensity is different etc., and reduce gradually the distance between the adjacent plate electrode 2 from import 11 to export 12 direction, the distance between the plate electrode 2 of the position that is close to import 11 is great, so the electric field is weaker, can purify electrified or the impurity that purification ability is stronger (the less electric field just can polarize), from import 11 to export 12, the distance between the plate electrode 2 reduces gradually, so the electric field that produces between the plate electrode 2 increases gradually, can polarize the impurity that is more difficult to polarize, the impurity that this moment polarization ability is weaker is also slowly adsorbed.
Referring to fig. 5, fig. 6 and fig. 8, the metal particles 3 may be in any shape, preferably in a spherical shape, and specifically, the metal particles 3 may be metal spheres or spherical structures with core-shell structures. When the metal particles 3 are not metal spheres, they are made of a magnetizable metal material, and the diameter of the metal particles 3 is as small as possible to be close to the point electric field, so that a large gradient electric field is generated near the surface of the metal particles 3. When the metal particles 3 and the core-shell structure are adopted, the metal particles 3 respectively comprise an inner core 31 and a shell 32 coated outside the inner core 31, wherein the inner core 31 is spherical, a magnetizable metal material is adopted, the dielectric constant is extremely high, the diameter of the inner core 31 is preferably smaller than 5mm, so as to approach a point electric field, and further obtain a larger electric field gradient, the shell 32 is made of an insulating material, and can be organic and non-polar materials such as plastics, oxides and the like, and the shell 32 and the inner core 31 form the core-shell structure together. The dielectric constant of the shell 32 is small enough to prevent the shielding of the inner core 31, and the shell 32 has good insulation and large breakdown electric field, and it should be noted that the thickness of the shell 32 is preferably micron-sized and not greater than the radius of the inner core 31, so that the inner core 31 is not shielded and not easily broken when a large gradient electric field is generated between the adjacent electrode plates 2, and the short circuit caused by the direct contact between the inner core 31 and the electrode plates 2 can be prevented, thereby ensuring the safety and reliability of use. In addition, it should be noted that the shell 32 may not have the small holes 33, or the small holes 33 may be uniformly distributed on the shell 32, and the small holes 33 at least partially expose the inner core 31. When the shell 32 is provided with the small holes 33, the electric field at the small holes 33 is stronger, the adsorption capacity to impurities is stronger, and the oil purification effect is better.
A magnetic field is applied in the box body 1, and the following modes can be specifically adopted: a permanent magnet or an electromagnet (only an N pole or an S pole) is arranged on one side of the inlet 11 or the outlet 12 of the box body 1; the electrode plates 2 adopt permanent magnets capable of conducting electricity, and the magnetic pole directions of the electrode plates 2 are the same; the electrode plate 2 is an electromagnet, and can generate magnetism after being electrified. In this way, the metal particles 3 can be attached to the same side surface of the adjacent electrode plates 2, that is, the electrode plates 2 are uniformly attached with the metal particles 3 only on the left side or only on the right side. Moreover, only one layer of metal particles 3 is attached to each electrode plate 2, the metal particles 3 mainly play a role in surface part, the surface area of one layer of metal particles 3 is close to that of the multiple layers of metal particles 3, the cost can be effectively saved, the space is saved, the number of the electrode plates 2 can be increased, and the oil liquid purification efficiency and the oil liquid purification effect are improved.
Referring to fig. 1 to 6, the diameters of the metal particles 3 on each electrode plate 2 may be the same, so that the manufacturing and assembly are easy, and the cost is low. The diameters of the metal particles 3 on the same electrode plate 2 can be the same, but the diameter of the metal particles 3 on the electrode plate 2 close to the inlet 11 is larger than that of the metal particles 3 on the electrode plate 2 close to the outlet 12, so that a larger gradient electric field can be generated between the metal particles 3 and the opposite electrode plate 2, and better oil liquid purification efficiency and purification effect can be achieved. The metal particles 3 on each electrode plate 2 may have at least two diameters, that is, the metal particles 3 with various diameters are attached to each electrode plate 2, so that a larger gradient electric field can be generated, after multi-stage purification, the purification effect is also excellent, and the adsorption effect and the adsorption efficiency are also high.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides an electrostatic purifier with metal particle, includes box (1), its characterized in that: an inlet (11) and an outlet (12) are arranged on the box body (1), electrode plates (2) are distributed between the inlet (11) and the outlet (12) in the box body (1), the polarities of the electrodes of the adjacent electrode plates (2) are opposite, and oil passing holes (21) are distributed on each electrode plate (2);
metal particles (3) capable of being magnetized are arranged between the adjacent electrode plates (2), the outer diameters of the metal particles (3) are larger than the aperture of the oil passing hole (21), and a magnetic field is applied in the box body (1) to enable the metal particles (3) to be respectively attached to the same side of the corresponding electrode plates (2);
the metal particles (3) each comprise a metal core (31) and an insulating shell (32) coated outside the metal core (31).
2. The electrostatic cleaning apparatus with metal particles as claimed in claim 1, wherein: and a permanent magnet or an electromagnet is arranged on one side of the inlet (11) or the outlet (12) of the box body (1).
3. The electrostatic cleaning apparatus with metal particles as claimed in claim 1, wherein: the electrode plates (2) adopt permanent magnets capable of conducting electricity, and the magnetic pole directions of the electrode plates (2) are the same.
4. The electrostatic cleaning apparatus with metal particles as claimed in claim 1, wherein: the electrode plate (2) is an electromagnet and can generate magnetism after being electrified.
5. The electrostatic cleaning apparatus with metal particles as claimed in claim 1, wherein: the metal particles (3) are all spherical.
6. The electrostatic cleaning apparatus with metal particles as claimed in claim 1 or 5, wherein: the diameters of the metal particles (3) on the same electrode plate (2) are the same.
7. The electrostatic cleaning apparatus with metal particles as claimed in claim 6, wherein: the diameter of the metal particles (3) on the electrode plate (2) close to the inlet (11) is larger than the diameter of the metal particles (3) on the electrode plate (2) close to the outlet (12).
8. The electrostatic cleaning apparatus with metal particles as claimed in claim 1 or 5, wherein: the metal particles (3) on each electrode plate (2) have at least two diameters.
9. The electrostatic cleaning apparatus with metal particles as claimed in claim 1, wherein: the adjacent electrode plates (2) are parallel to each other or have an included angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710625844.9A CN107262288B (en) | 2017-07-27 | 2017-07-27 | Electrostatic purification device with metal particles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710625844.9A CN107262288B (en) | 2017-07-27 | 2017-07-27 | Electrostatic purification device with metal particles |
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| CN107262288A CN107262288A (en) | 2017-10-20 |
| CN107262288B true CN107262288B (en) | 2023-03-21 |
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| CN115608516A (en) * | 2022-11-03 | 2023-01-17 | 吉林省电力科学研究院有限公司 | Electrostatic oil purifying device |
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| CN107262288A (en) | 2017-10-20 |
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