CN114669171B - Flue gas moisture collecting device coupling condensation mechanism and electric field force and working method thereof - Google Patents
Flue gas moisture collecting device coupling condensation mechanism and electric field force and working method thereof Download PDFInfo
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Abstract
The invention discloses a flue gas moisture collecting device coupling a condensation mechanism and an electric field force and a working method thereof, belonging to the technical field of flue gas water saving. The device comprises a shell and a smoke detection unit, a charging device, a condensing device and an ion wind generating device which are sequentially arranged in the shell from an inlet to an outlet, wherein an intermittent vertical electric field generating device is arranged in the area where the condensing device is located, and the direction of ion wind generated by the ion wind generating device is opposite to the flowing direction of smoke; a condensed water collecting port is arranged at the lower part of the shell and is connected with a condensed water collecting device; the condensing device comprises a plurality of heat exchange tubes which are horizontally arranged, a first metal wire and a second metal wire are arranged in the tube walls of the heat exchange tubes along the axial direction of the heat exchange tubes, and the current directions in the first metal wire and the second metal wire are opposite. The invention has compact structure, low energy consumption, high-efficiency collection of fog drops guided by an external field, low cost, simple structure, firmness and long-term effect compared with a bionic material water collection structure.
Description
Technical Field
The invention belongs to the technical field of flue gas water saving, and particularly relates to a flue gas moisture collecting device coupling a condensation mechanism and an electric field force and a working method thereof.
Background
The industry produces a large amount of polluted flue gas, and the flue gas can carry a large amount of moisture through the pollutant processing procedure, and the discharge of this part moisture can cause the influence to the environment on the one hand, and on the other hand also aggravates the waste of water resource. Water smoke, liquid drops and particulate matter speed are too fast to be caught at the defroster in the flue gas, but thereby collect through slowing down and growing up import flue gas particulate matter more efficiently.
The surface steam partial pressure requirement of large particles is lower, the particle charging counteracts surface tension to condense more water on the particle surface through a charge-dipole moment effect, the particle charging mechanism can be divided into electric field charging and diffusion charging, the electric coagulation of the particles is mainly divided into three types, namely heteropolar charged particle electric coagulation, homopolar charged particle electric coagulation in an alternating electric field and heteropolar charged particle electric coagulation in the alternating electric field. The water mist collecting device comprises a traditional net-shaped collecting device, a bionic material water mist collecting device and an outfield driving water mist collecting device. Wherein the external field drive comprises mechanical vibration, temperature, electric field and magnetic field. However, the existing water collecting device generally has the problems of complex process, high cost, short service life, poor recovery effect and the like.
Disclosure of Invention
In order to solve the above problems, the present invention aims to provide a flue gas moisture collecting device coupled with a condensation mechanism and an electric field force, and a working method thereof, which has a compact structure and low energy consumption, and can efficiently recover moisture in flue gas.
The invention is realized by the following technical scheme:
the invention discloses a flue gas moisture collecting device for coupling a condensation mechanism and an electric field force, which comprises a shell and a flue gas detection unit, a charge device, a condensing device and an ionic wind generating device which are sequentially arranged in the shell from an inlet to an outlet, wherein the region where the condensing device is located is provided with an intermittent vertical electric field generating device, and the direction of the ionic wind generated by the ionic wind generating device is opposite to the flowing direction of flue gas; a condensed water collecting port is arranged at the lower part of the shell and is connected with a condensed water collecting device;
the condensing device comprises a plurality of heat exchange tubes which are horizontally arranged, a first metal wire and a second metal wire are arranged in the tube walls of the heat exchange tubes along the axial direction of the heat exchange tubes, and the current directions in the first metal wire and the second metal wire are opposite.
Preferably, the charging device comprises a first power supply and a charging electrode, the first power supply is connected with the charging electrode, and the charging electrode is arranged inside the shell.
Further preferably, the first power supply is a high-frequency superimposed pulse power supply; the charging electrode is a needle type or an induction ring type.
Preferably, the smoke detection unit comprises a flow detection device, a temperature detection device and a humidity detection device.
Preferably, the intermittent vertical electric field generating device comprises an upper polar plate and a lower polar plate, the upper polar plate and the lower polar plate are respectively connected with the power supply, and the upper polar plate and the lower polar plate are embedded in the shell.
Preferably, the lower part of the shell is of a funnel structure, and the condensed water collecting port is arranged at the lowest point.
Preferably, the ion wind generating device comprises a grounding grid and a cathode discharge grid which are arranged in parallel, and the cathode discharge grid is connected with a third power supply.
Preferably, the heat exchange tube is corrosion-resistant material, and the heat exchange tube surface is equipped with the hydrophobic layer.
The invention discloses a working method of the flue gas moisture collecting device coupled with the condensation mechanism and the electric field force, which comprises the following steps:
the flue gas is charged in the charging device and is condensed with particles in the flue gas, the particles are used as condensation nuclei to condense water vapor in the condensing device, opposite currents are introduced into the first metal wire and the second metal wire, the whole condensing device forms an electric field opposite to the flow direction of the flue gas, charged condensed liquid drops are decelerated under the action of electric field force in the flow direction of the flue gas, and the liquid drops are collected on the surface of the heat exchange tube under the combined action of thermophoretic force and the electric field force; the ion wind generating device generates ion wind in the direction opposite to the flowing direction of the flue gas, so that the liquid drops decelerated by the electric field force are forced to flow in the opposite direction and are collected through the grounding grid; condensed water enters a condensed water collecting device through a condensed water collecting port; the intermittent vertical electric field generating device generates an intermittent electric field in the gravity direction, and the liquid drop and liquid film adsorbing charged particles on the surface of the heat exchange tube is cleaned under the combined action of gravity and electric field force.
Preferably, the flowing direction of current in the first metal wire and the second metal wire is periodically changed, the direction of an electric field force in the condensing device is changed, the direction of the electric field force of the condensing device is the same as the direction of smoke when the intermittent vertical electric field generating device works, a charged liquid drop liquid film on the surface of a heat exchange tube of the condensing device is repelled, and the friction force between the liquid drop liquid film and the tube wall is reduced.
Compared with the prior art, the invention has the following beneficial technical effects:
the flue gas moisture collecting device coupled with the condensation mechanism and the electric field force disclosed by the invention couples the condensation mechanism and the electric field force action, more tiny liquid drops can be collected in the condensation device under the synergistic action of the electric field force and the thermophoretic force, the electric field force and the flue gas drag force act together, and the deceleration liquid drops are well collected at the grounding grid. Part of the liquid drops pass through the grounding grid, a cathode discharge grid is arranged at the smoke outlet, ion wind is generated between the cathode discharge grid and the grounding grid, and the charged liquid drops flowing through the grounding grid are turned back under the action of the ion wind and are collected for the second time through the grounding grid. By constructing an intermittent electric field in the gravity direction, the electric field force and the gravity synergistic effect and the hydrophobicity of the corrosion-resistant high polymer material, the heat exchange of the flue gas and the condensing device is enhanced. The invention changes the advancing direction of the water mist droplets by reducing the speed of the condensed droplets in the flue gas and giving reverse ion wind action on the premise that the water mist droplets passing through the water-receiving grounding polar plate are decelerated by an electric field at the outlet, and the water mist droplets are collected by the grounding grid for the second time. The charged flue gas is subjected to electrostatic coagulation of particles, the surface saturated vapor pressure of the coagulated particles is lower, more water is condensed, electric field force is formed by parallel metal wires in the heat exchange tube to reduce the speed of the condensed droplets adsorbing the charged particles and the condensed droplets using the charged particles as condensation nuclei, and the electric field force and thermophoresis force are cooperated to collect micro droplets on the wall of the heat exchange tube. An electric field in the gravity direction is constructed intermittently, so that the electric field force enhances more moisture in the heat exchange condensation flue gas.
The working method of the flue gas moisture collecting device coupled with the condensation mechanism and the electric field force disclosed by the invention has the advantages of high automation degree and low energy consumption, and can efficiently remove moisture in flue gas.
Furthermore, the flowing directions of the currents in the first metal wire and the second metal wire are periodically changed, so that the friction force between the small liquid drop liquid film and the pipe wall can be reduced, and the liquid drop and the liquid film condensed on the heat exchange pipe are intermittently cleaned by combining an intermittent vertical electric field.
Drawings
FIG. 1 is a schematic front view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the overall structure of the present invention;
FIG. 3 is a schematic view of the structure of the condensing tube with wires arranged on the outer wall;
fig. 4 is a schematic diagram of the overall electric field in the condensing unit.
In the figure: the device comprises a smoke detection unit 1, a control unit 2, a first power supply 3, a charged electrode 4, an upper polar plate 5, a lower polar plate 6, a condensing device 7, a second power supply 8, a grounding grid 9, a shell 10, a condensate water collecting device 11, a heat exchange tube 12, a first metal wire 13, a second metal wire 14, a cathode discharge grid 15 and a third power supply 16.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings, which are included to illustrate and not to limit the invention:
as shown in fig. 1 and fig. 2, the flue gas moisture collecting device of the invention, which couples a condensation mechanism and an electric field force, includes a housing 10 and a flue gas detecting unit 1, a charging device, a condensing device 7 and an ion wind generating device which are sequentially arranged in the housing 10 from an inlet to an outlet, wherein an intermittent vertical electric field generating device is arranged in a region where the condensing device 7 is located, and the direction of the ion wind generated by the ion wind generating device is opposite to the flow direction of the flue gas; a condensed water collecting port is formed in the lower portion of the shell 10 and connected with a condensed water collecting device 11;
as shown in fig. 3, the condensing unit 7 comprises a plurality of horizontally arranged heat exchange tubes 12, wherein a first metal wire 13 and a second metal wire 14 are arranged in the tube wall of the heat exchange tube 12 along the axial direction of the heat exchange tube 12, the directions of currents in the first metal wire 13 and the second metal wire 14 are opposite, and the first metal wire 13 and the second metal wire 14 are connected with the second power supply 8.
The control unit 2 controls the first power supply 3, the second power supply 8, and the third power supply 16.
In a preferred embodiment of the present invention, the charging device includes a first power source 3 and a charging electrode 4, the first power source 3 is connected to the charging electrode 4, and the charging electrode 4 is disposed inside the housing 10. Preferably, the first power supply 3 is a high-frequency superimposed pulse power supply; the charging electrode 4 is a needle type or an induction ring type.
In a preferred embodiment of the present invention, the smoke detecting unit 1 comprises a flow detecting means, a temperature detecting means and a humidity detecting means.
In a preferred embodiment of the present invention, the intermittent vertical electric field generating device comprises an upper plate 5 and a lower plate 6, the upper plate 5 and the lower plate 6 are respectively connected to a power supply, and the upper plate 5 and the lower plate 6 are embedded in the housing 10.
In a preferred embodiment of the present invention, the lower portion of the housing 10 is formed in a funnel shape, and the condensed water collecting port is formed at the lowest point.
In a preferred embodiment of the present invention, the ion wind generating device comprises a grounding grid 9 and a cathode discharge grid 15 arranged in parallel, and the cathode discharge grid 15 is connected with a third power supply 16.
In a preferred embodiment of the present invention, the heat exchange tube 12 is made of a corrosion-resistant polymer material, such as fluoroplastic, and the outer surface of the heat exchange tube 12 is provided with a hydrophobic layer.
The main principles involved in the present invention are as follows:
the liquid drops are also charged after being condensed by the condensing device 7, and the charged liquid drops are acted by the electric field force and the smoke drag force between the first metal wire 13 and the second metal wire 14 in the heat exchange tube 12. And (3) stress analysis:
wherein, F e Is the force of an electric field; f d Is the smoke drag force; μ is aerodynamic viscosity; d p Is the particle size of the fog drops; u. u 0 The speed of the incident jet is; e 0 Is the electric field strength.
Liquid drop and liquid film stress in the gravity direction:
wherein G is gravity; m is the mass of the liquid dropping film; g is the gravitational acceleration.
Water mist, liquid drops and particles are collected under the action of thermophoretic force of the condensation part, momentum transfer sizes are different when cold and hot molecules in smoke collide with the particles, and the particles move towards the temperature reduction direction and are deposited on the low-temperature surface. The droplets decelerated by the electric field are collected at the outlet by a grounded grid 9.
Submicron droplets and particles are also subject to thermophoretic forces brownian forces: f = F T +F bi
Thermophoretic force:
the thermophoresis effect is described by thermophoresis coefficients:
K n is the Knudsen number that characterizes the flow morphology of the particulate matter:
in the formula, C m ＝1.146；C S ＝1.147；C 1 ＝2.20；D p Is the particle size of the particulate matter;
λ is the gas molecular free path:
k is the ratio of the thermal conductivity of the particulate to the thermal conductivity of the gas, called the thermal conductivity ratio:
the thermal conductivity of Kp particles; kg gas heat conductivity coefficient;
c Cuninghan slip correction coefficient C =1.0+ K n (C 1 +C 2 exp(-C 3 /K n ))；
Wherein C 1 ＝1.2；C 2 ＝0.41；C 3 ＝0.88；
Brown force:
wherein, F T Is thermophoretic force; f bi Is Brown force; c s 、C t And C m The values are 1.17, 2.18 and 1.14 respectively.
The condensing unit 7 is made of corrosion-resistant high polymer materials, the first metal wire 13 and the second metal wire 14 are wrapped in the corrosion-resistant high polymer material heat exchange tube and are not in contact with the charged flue gas and the internal cooling medium, and the whole operation and maintenance cost is lower, and the service life is longer. The current with the opposite direction is led between the first metal wire 13 and the second metal wire 14 which are parallel to each other to form an electric field which is opposite to the flow direction of the smoke, so that the charged water mist and liquid drops in the smoke are decelerated.
The total charge capacity of the charged device is calculated by monitoring particle size distribution through a Rayleigh limit and smoke detection unit 1:
wherein q is Ray Is the maximum charge carried by the droplet; r is the radius of the water mist, droplets and particles; epsilon 0 Is a vacuum dielectric constant; σ is the surface tension.
The smaller the radius of the water mist, the smaller the charge that can be carried by the liquid drops and the particulate matters, the smaller the flue gas detection unit 1 monitors the flue gas particle size distribution to calculate the whole flue gas charge.
The condensation device 7 when the droplets are neutral (charge q is zero), the classical Kevin equation reveals the effect of the droplet radius on the surface vapor partial pressure, given by the formula:
wherein p is ∞ Is the partial pressure of saturated water vapour on the plane at temperature T; v. of l Is the volume of a single molecule in a liquid; k is the boltzmann constant; epsilon 0 Is the vacuum dielectric constant; epsilon l Is the dielectric constant of liquid water; p is the dipole moment of water; the water mist, liquid drop and particle surface steam with different radii have different saturated steam partial pressures when being condensed.
The first metal wire 13 and the second metal wire 14 intermittently change the current direction so as to change the direction of the electric field and repel the charged liquid drop liquid film on the surface of the condensing device 7; meanwhile, the intermittent vertical electric field generating device is electrified to form an intermittent electric field in the gravity direction, and the combination of the intermittent electric field and the hydrophobicity of the corrosion-resistant high polymer material ensures that liquid drops flow down more smoothly, liquid drops and liquid films on the surface of the heat exchange tube drop off rapidly under the synergistic action of gravity and electric field force, and the surface of the heat exchange tube is exposed in flue gas intermittently, so that more moisture in the flue gas is recovered by enhanced heat exchange.
The flue gas detection unit 1 monitors the temperature, flow rate, relative humidity and particle size distribution of the flue gas. The method is characterized in that the voltage of a high-frequency superposed pulse high-efficiency power supply of the charging device is automatically controlled to charge the flue gas by measuring the state of the inlet flue gas, the charging device can be divided into a pulse discharge period and a pulse discharge period in a high-voltage pulse electric field, when the particle size of fine particles is large, the electronic charging plays a main role, and when the particle size of the fine particles is smaller, the ionic charging plays a main role. The high-voltage pulse electric field is easier to charge fine particles and saves more electricity. The control unit 2 controls the current of the first metal wire 13 and the second metal wire 14 in the heat exchange tube 12, so that the charged liquid drops in the flue gas decelerate the water mist, the liquid drops and the particulate matters under the action of the electric field force and the flue gas drag force.
The first wire 13 and the second wire 14 may be straight, curved, or mesh. Completely wrapped inside the corrosion-resistant polymer heat exchange tube wall and not contacted with external smoke and internal cooling water.
As shown in fig. 4, the condensing unit 7 is provided with a first metal wire 13 and a second metal wire 14 which are arranged in front of and behind the heat exchange tube 12 and are provided with currents in opposite directions to form an electric field in which the flow direction of flue gas is opposite, so that charged droplets are better collected by the electric field force, and the water mist and droplets carried out of the device by the flue gas are reduced. The first wires 13 and the second wires 14 are in a grid shape or parallel wire shape to avoid the openings of the heat exchange tubes, and are wrapped inside the shell 10.
Settling velocity V of particles in pipeline under thermophoretic action th ：
Wherein T is the fluid temperature; k is th Is the thermophoresis coefficient.
The ion wind generating device emits ion wind, and the liquid droplets are further decelerated by the force of the ion wind applied to the liquid droplets. And (3) stress analysis:
F e ＝E 0 q
I＝k(V-V 0 ) 2
F d ＝3πμd P u 0
wherein μ is aerodynamic viscosity; d p Is the particle size of the fog drops; u. of 0 The speed of the incident jet is; e 0 Is the electric field strength.
Calculating the ratio of the actual water yield to the theoretical water yield:
wherein N is j Calculating theoretical water yield for inlet and outlet temperatures; n is a radical of s Is the actual collected water in the tub; the ratio of the two is the water collection efficiency.
Calculating the water receiving efficiency:
N in is the water content of the inlet flue gas; actual water uptake of Ns.
Calculating the water receiving efficiency by a formula, and obtaining the theoretical water receiving quantity N through the inlet and outlet temperatures j The actual collected water in the bucket is N s The ratio of the two is the water collection efficiency, and can be compared with the original phase change condensation system.
According to the invention, the energized metal wires are embedded in the heat exchange tube 12 and the shell 10 to form an electric field, and the electric field force in the horizontal direction reduces the water mist, liquid drops and particulate matters carried by the flue gas to reduce the moisture carried out of the device by the flue gas. The flue gas collected by the grounding grid 9 is turned back twice under the action of ion wind and is collected by the grounding grid 9, and partial water mist is adsorbed on a liquid film under the influence of the drag force of the flue gas and is collected by the grounding grid 9 for three times or the condensing device 7 under the influence of thermophoretic force.
The electrostatic coagulation of the particles is carried out before the condensing device 7, and the surface vapor pressure of the particles is required to be smaller by increasing the particle size of the particles so as to be easier to condense the moisture in the flue gas as condensation nuclei at the condensing device.
The gravity direction intermittent electric field is formed between the upper shell and the lower shell of the condensing device 7, the horizontal electric field direction is changed simultaneously, the friction force of the liquid drop liquid film is given to the pipe wall when the liquid drop liquid film flows downwards, the heat exchange is rapidly collected, 12 liquid drops and liquid films are accumulated on the surface, the heat exchange capacity is enhanced by the direct contact of the flue gas and the heat exchange pipe 12, and more water in the flue gas is recovered through condensation.
The small particles and small liquid drops are collected in the condensing part under the synergistic action of thermophoretic force and electric field force, the synergistic action of thermophoretic force and electric field force is greater than that of Brownian motion, and the small liquid drops and the particles are gathered towards the pipe wall with lower temperature and the direction of electric field force.
Adopt corrosion-resistant macromolecular material preparation casing 10 life-span longer, corrosion-resistant macromolecular material can be with the pipe diameter do less have bigger surface area heat exchange efficiency higher, bury the wire in heat exchange tube 12 when making corrosion-resistant macromolecular material, the current that lets in opposite direction can form horizontal electric field at the heat transfer part between the inside parallel wire of corrosion-resistant macromolecular material heat exchange tube 12, particulate matter in the speed reduction flue gas with condense the liquid drop that adsorbs charged particulate matter, the particulate matter that slows down has longer time at condensing equipment 7 as the condensation nucleus and condenses the liquid drop, the liquid drop that slows down is fully collected at ground connection net bars 9.
The metal wires in the heat exchange tubes 12 are intermittently introduced with reverse current to construct an electric field in the smoke flowing direction so as to reduce the friction force between liquid drops and liquid films and the tube walls, and meanwhile, the upper metal mesh (plate) and the lower metal mesh (plate) of the condensation part shell 10 are electrified to form an electric field in the gravity direction, so that the condensed liquid drops and liquid films on the heat exchange tubes are intermittently cleaned, and the drop-shaped condensation effect is achieved by combining the hydrophobicity of the corrosion-resistant high polymer material.
The above description is only a part of the embodiments of the present invention, and although some terms are used in the present invention, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the present invention and they are to be construed as any additional limitation which would be contrary to the spirit of the present invention. The foregoing is merely an illustration of the present invention for the purpose of providing an easy understanding and is not intended to limit the present invention to the particular embodiments disclosed herein, and any technical extensions or innovations made herein are protected by the present invention.
Claims (8)
1. The working method of the flue gas moisture collecting device is characterized in that the device comprises a shell (10) and a flue gas detection unit (1), a charging device, a condensing device (7) and an ionic wind generating device which are sequentially arranged in the shell (10) from an inlet to an outlet, wherein an intermittent vertical electric field generating device is arranged in the area where the condensing device (7) is located, and the direction of the ionic wind generated by the ionic wind generating device is opposite to the flowing direction of the flue gas; a condensed water collecting port is arranged at the lower part of the shell (10) and is connected with a condensed water collecting device (11); the ion wind generating device comprises a grounding grid (9) and a cathode discharging grid (15) which are arranged in parallel, and the cathode discharging grid (15) is connected with a third power supply (16);
the condensing device (7) comprises a plurality of heat exchange tubes (12) which are horizontally arranged, a first metal wire (13) and a second metal wire (14) are arranged in the tube walls of the heat exchange tubes (12) along the axial direction of the heat exchange tubes (12), and the current directions in the first metal wire (13) and the second metal wire (14) are opposite;
the working method comprises the following steps:
the flue gas is charged in the charging device and is condensed with particles in the flue gas, the particles are used as condensation nuclei to condense water vapor in the condensing device (7), opposite currents are introduced into the first metal wire (13) and the second metal wire (14), the whole condensing device (7) forms an electric field opposite to the flow direction of the flue gas, charged condensation liquid drops are decelerated under the action of electric field force in the flow direction of the flue gas, and the liquid drops are collected on the surface of the heat exchange tube (12) under the combined action of thermophoretic force and the electric field force; the ion wind generating device generates ion wind with the flow direction opposite to that of the flue gas, so that the liquid drops decelerated by the electric field force are forced to flow in the opposite direction and are collected through the grounding grid (9) again; condensed water enters a condensed water collecting device (11) through a condensed water collecting port; the intermittent vertical electric field generating device generates an intermittent electric field in the gravity direction, and the liquid drop film adsorbing charged particles on the surface of the heat exchange tube (12) is cleaned under the combined action of gravity and electric field force.
2. The working method of the flue gas moisture collecting device coupling the condensation mechanism and the electric field force according to claim 1, wherein the charging device comprises a first power source (3) and a charging electrode (4), the first power source (3) is connected with the charging electrode (4), and the charging electrode (4) is arranged inside the housing (10).
3. The working method of the flue gas moisture collecting device coupling the condensation mechanism and the electric field force according to claim 2, wherein the first power supply (3) is a high-frequency superimposed pulse power supply; the charging electrode (4) is in a needle type or induction ring type.
4. The operation method of the flue gas moisture collecting apparatus with coupling of the condensation mechanism and the electric field force as claimed in claim 1, wherein the flue gas detecting unit (1) comprises a flow rate detecting device, a temperature detecting device and a humidity detecting device.
5. The working method of the flue gas moisture collecting device with the coupling of the condensation mechanism and the electric field force as claimed in claim 1, wherein the intermittent vertical electric field generating device comprises an upper plate (5) and a lower plate (6), the upper plate (5) and the lower plate (6) are respectively connected with a power supply, and the upper plate (5) and the lower plate (6) are pre-embedded in the shell (10).
6. The operation method of the flue gas moisture collecting device with coupling of the condensation mechanism and the electric field force as claimed in claim 1, wherein the lower portion of the housing (10) is a funnel structure, and the condensed water collecting port is provided at the lowest point.
7. The working method of the flue gas moisture collecting device coupled with the condensation mechanism and the electric field force as claimed in claim 1, wherein the heat exchange tube (12) is made of a corrosion-resistant material, and a hydrophobic layer is arranged on the outer surface of the heat exchange tube (12).
8. The working method of the flue gas moisture collecting device coupling the condensation mechanism and the electric field force according to claim 1, characterized in that the flowing direction of the current in the first metal wire (13) and the second metal wire (14) is periodically changed, the direction of the electric field force in the condensing device (7) is changed, the direction of the electric field of the condensing device (7) is the same as the direction of the flue gas when the intermittent vertical electric field generating device works, the charged liquid droplet film on the surface of the heat exchange tube (12) of the condensing device (7) is repelled, and the friction force between the liquid droplet film and the tube wall is reduced.
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| CN103566753B (en) * | 2013-11-18 | 2017-01-18 | 沈阳工业大学 | Cooking oil fume integrated treatment system and method |
| CN205216485U (en) * | 2015-12-11 | 2016-05-11 | 烟台龙源电力技术股份有限公司 | Electricity congeals wet dedusting device |
| CN106955782A (en) * | 2017-05-10 | 2017-07-18 | 福建龙净环保股份有限公司 | Flue gas condensing Water Sproading dust arrester |
| CN109432972B (en) * | 2019-01-02 | 2023-12-12 | 江苏龙净节能科技有限公司 | Pre-charged desulfurizing device |
| CN111375490B (en) * | 2020-01-16 | 2021-06-29 | 华中科技大学 | Demisting and water collecting device and method based on coupling of ion wind and vibrating wire grid |
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