CN115226284A

CN115226284A - Electrode winding equipment

Info

Publication number: CN115226284A
Application number: CN202210938774.3A
Authority: CN
Inventors: 张坚; 刘文正; 高培根
Original assignee: Yangtze Normal University
Current assignee: Yangtze Normal University
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-10-21
Also published as: CN115066079A; CN113181745B; CN113181745A

Abstract

The invention discloses an electrode winding device, which comprises a base and is characterized in that a fixed support is vertically and upwards arranged on each of the left side and the right side of the base, a sliding sleeve for a high-voltage electrode to pass through is respectively and fixedly arranged in the middle of the upper end in the middle of the fixed support, a rotating frame which is integrally in a rectangular frame structure is rotatably arranged outside the two sliding sleeves by virtue of a bearing, the inner ends of the two sliding sleeves which are opposite are arranged and penetrate through the inner side surface of the middle position of the rotating frame, a pulley steering mechanism which is staggered with the sliding sleeves is also arranged on the side edge of the rotating frame, and a wire roller mounting mechanism is also arranged at the end part of the rotating frame. The equipment can realize the preparation of the plasma discharge electrode structure capable of generating glow discharge effect, and has the advantages of simple structure, convenient and fast operation and preparation and high efficiency.

Description

Electrode winding equipment

The application is a divisional application of a ship tail gas treatment method patent with application number 202110583629.3, application date 2021-5-27.

Technical Field

The invention relates to the field of ship tail gas treatment, in particular to electrode winding equipment.

Background

Sea transport is a globally recognized major source of atmospheric pollutants. In recent years, with the rapid development of international maritime trade, more and more people are concerned about the global impact of atmospheric pollutants, and ship exhaust emissions have a great influence on the air quality in local and regional areas, since they are easily transported in the atmosphere over long distances, from the sea to the land, and even from one continent to another. In addition, part of the marine emissions occur in coastal areas, and exhaust pollutants can directly diffuse to continents, causing environmental problems affecting human health and ecosystem. According to the European Environment Agency (EEA), the Nitrogen Oxide (NOX) emitted to the atmosphere by global ships each year is about 2500 million tons, the Sulfur Oxide (SOX) is about 1500 million tons, and the Particulate Matter (PM) is about 130 million tons.

At present, the SOX control technology of ship tail gas mainly comprises a low-sulfur fuel oil technology, a dry desulfurization technology and a wet scrubbing technology. The technology for controlling the NOx in the tail gas of the ship mainly comprises an exhaust gas recirculation technology (an EGR system) and a selective catalytic reduction technology (an SCR system).

In the traditional desulfurization and denitrification technology, although the seawater desulfurization process has simple working flow, reliability, environmental protection and high economy, the effect is not good when the tail gas discharged during the combustion of high-sulfur fuel oil is treated by the current seawater desulfurization method, the whole equipment occupies large space, and the desulfurization efficiency in a low-salinity sea area is low. And the whole desulfurization process needs to renew a large amount of seawater, and extra fuel oil needs to be consumed to provide the power, so that the cost is increased. The biggest limiting factors of the dry desulfurization system are the supplement of the desulfurizing agent and the accumulation treatment of reaction byproducts after tail gas treatment. The dry desulfurization system has high requirement on the absorbent, poor stability of the desulfurizer, more byproducts after reaction, troublesome treatment and utilization and needs to be additionally provided with an additional configuration device. The EGR system can reduce the temperature of circulating exhaust gas, so that the NOx (nitrogen oxide) emission of a ship main engine is greatly reduced, but the reflux ratio of the exhaust gas needs to be strictly controlled during the operation of the EGR, and the optimal reflux quantity needs to be continuously adjusted according to the change of load to balance the economic benefit and the NOx emission reduction. The investment operation cost of the EGR technology is relatively high, the unit investment cost is generally $ 60-80/kW, and the operation cost is generally 4% -6% of the fuel cost when the ship sails in the emission control area. The SCR technology also has the problems of large occupied area and high investment and operation cost, the SCR system is more complex, and the installation cost accounts for about 5 to 8 percent of the total cost of the ship. The deactivation of the catalyst at low temperature, the leakage of the reducing agent, the consumption of a large amount of reducing agent urea during operation and the like increase the operation cost to a certain extent.

Therefore, it is necessary for those skilled in the art to find a new method for treating exhaust gas from a ship at low cost and with high reliability.

In the field of exhaust gas treatment, the plasma discharge technology is used to purify exhaust gas (mainly engine exhaust gas), which is a relatively efficient exhaust gas treatment method in recent years. Plasma (plasma), also called plasma, is an ionized gaseous substance with a large number of positive and negative ions generated by ionizing atoms and radicals after part of electrons are deprived, and has high energy level and activity because the plasma also comprises electrons, various excited state atoms, atoms and free radicals. The principle of plasma discharge treatment is that the pollutants in the tail gas are decomposed by plasma generated by ionization, so that the purpose of degrading the pollutants is achieved. For example, CN204051409U discloses a toothed plate uniform flow type cold plasma exhaust gas treatment device, CN104941400B discloses a discharge plasma automobile exhaust gas treatment device with a rotary screw electrode and a treatment method thereof, which both adopt plasma to realize exhaust gas treatment.

The plasma may be classified into arc discharge, corona discharge, dielectric barrier discharge, glow discharge, and the like according to the generation form. The three discharge modes are the plasma processing modes which are common in the field of tail gas processing. However, the main action mechanism of the arc discharge is high-temperature action, so that the arc discharge is more used for air purification and sterilization and is not suitable for tail gas treatment. The energy level of plasma generated by corona discharge treatment is lower, the sterilization effect is not as good as that of glow discharge plasma, and the decomposition efficiency of harmful substances such as formaldehyde is not high. The dielectric barrier discharge needs to arrange a dielectric layer for breakdown between the electrodes, and the ionization structure of the dielectric barrier discharge is inconvenient to arrange and is not beneficial to tail gas to pass through. Glow discharge plasma has higher energy level and activity, mainly degrades pollutants through high-energy particles in the plasma, and is generally an ideal tail gas treatment mode; however, the conventional glow discharge method has a small discharge area and needs to be formed in a low-pressure environment, and is difficult to be practically applied in the field of exhaust gas purification. Meanwhile, most of the existing tail gas treatment devices are used for treating automobile tail gas, and the treatment efficiency is difficult to meet the requirement of ship tail gas treatment.

Patent CN102548177B filed by the inventor's subject group discloses a discharge electrode structure of a plasma air purification device, which adopts positive and negative electrodes arranged in a cross-mesh structure, and directly contacts with discharge after insulating materials are wrapped by the positive and negative electrodes. The patent technology is different from the conventional ionization treatment, adopts a discharge mode that two electrodes are not in contact and discharge under the action of an electric field, and can generate discharge at the contact point of the electrodes based on the surface discharge principle to generate low-temperature plasma and diffuse the low-temperature plasma outwards. The low-temperature plasma generated in the mode has the property similar to glow discharge plasma, and has the advantages of high sterilization rate, good pollutant component degradation effect, short time consumption, and low power consumption; but this structure only produces ionizing discharges at the electrode cross-contact locations and is relatively inefficient. Based on this patent, the inventor has also filed for a plasma disinfection and sterilization device with a flexible discharge electrode structure in CN 105848397B. In the device, ionization discharge is realized by adopting a mode that the grounding electrode is spirally wound on the high-voltage electrode after being wrapped by an insulating medium, the discharge principle of the device has the properties of medium barrier discharge and surface discharge at the same time, low-temperature plasma similar to glow discharge effect can be generated on the surface of the contact junction of the electrode, and the device is more suitable for treating tail gas.

However, the device of CN105848397B still has the defects of material limitation, short service life, limited treatment effect and the like, is not suitable for direct application in ship tail gas treatment, and needs to be further improved to improve the treatment efficiency and effect.

Disclosure of Invention

Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a ship tail gas treatment method which has good tail gas treatment effect, high treatment efficiency, convenient implementation and low cost. The invention also provides electrode winding equipment capable of conveniently and rapidly realizing preparation of the plasma discharge electrode.

In order to solve the technical problems, the invention adopts the following technical scheme:

the ship tail gas treating method is characterized in that the ionization discharge is generated between the surface of a high-voltage electrode wrapped with an insulating material and a wound grounding electrode, and the ionization discharge is a glow discharge effect.

Thus, the conventional tail gas treatment is plasma in the form of arc discharge or corona discharge, and the ionization of the plasma has low plasma energy level and activity. In this application, adopt and produce the ionization discharge phenomenon between the wrap-up has insulating material's high-voltage electrode surface and winding telluric electricity field, can generate the ionization plasma who has the glow discharge effect, can have higher energy level and activity, can satisfy ship exhaust's processing demand better, improve treatment effect and treatment effeciency.

Further, two grounding electrodes are wound on the surface of the high-voltage electrode in a staggered mode.

Therefore, the energy level of the ionized plasma can be better improved, the energy level types of ionized particles are enriched, and the treatment effect is greatly improved.

The method is further realized by connecting a ship tail gas treatment device based on plasma ionization into a ship tail gas channel, wherein the ship tail gas treatment device comprises a shell, one end of the shell is an air inlet end, the other end of the shell is an air outlet end, an air passage is formed in the middle of the shell, a plasma discharge electrode is arranged in the air passage and comprises a high-voltage electrode which is positioned in the middle and integrally columnar, an insulating material is wrapped outside the high-voltage electrode, a grounding electrode is spirally wound outside the insulating material, the plasma discharge electrode is arranged in a layered shape along the cross section of the air passage and is provided with a plurality of layers at intervals along the air passage direction, and each layer of the plasma discharge electrode comprises a plurality of parallel and parallel arranged electrodes at intervals.

When the device is used, the air inlet end and the air outlet end of the shell are connected into a tail gas discharge channel (of a ship) to be treated, the two ends of all the high-voltage electrodes and the two ends of the grounding electrode are respectively connected with the high-voltage end and the grounding end of a power supply through leads, and a plasma alternating current power supply system with a high-frequency high-voltage output circuit can be specifically adopted to realize control (the specific structure of a control part is the conventional prior art and is not detailed here). After the device is electrified to reach the discharge voltage, a discharge loop is formed between a high-voltage electrode and a grounding electrode of a plasma discharge electrode, and based on the principles of dielectric barrier discharge and surface discharge, low-temperature plasma with similar glow discharge effect (namely, the discharge phenomenon is uniformly dispersed light blue discharge, the discharge current is in milliampere level, and a small amount of current pulse) can be generated on the surface of the contact junction of the electrodes, so that the tail gas is ionized and purified. The mode that the multilayer electrode of arranging through the direction interval along tail gas in this device, many electrodes of parallel interval arrangement of gas channel section along passing are followed to every layer of electrode, have greatly improved the regional quantity of ionization in the gas channel three-dimensional space, to admitting air and realizing three-dimensional ionization purification treatment, have greatly improved the tail gas treatment effect, are particularly useful for the big processing demand of boats and ships tail gas volume.

Furthermore, every two adjacent layers of plasma discharge electrodes are arranged in a crisscross direction staggered by 90 degrees.

Therefore, the ionization purification treatment of the passing air flow can be better realized by better forming the ionization region space in the grid shape in a mode of staggered arrangement of the two adjacent layers of electrodes.

Furthermore, the plasma discharge electrodes of different layers but arranged in the same direction are arranged in a staggered manner in the arrangement interval direction, so that no gap is left in the projection of all the plasma discharge electrodes on the cross section along the tail gas flowing direction.

In this way, the projections of all the transverse and longitudinal rows of electrodes onto the cross section of the air duct can cover 100% of the entire cross section of the duct. The arrangement mode can realize that all tail gas pollutant gases can fully contact with the surface of the electrode, and the treatment effect is ensured.

Furthermore, the high-voltage electrode is of a cylindrical structure made of a copper material.

Therefore, the device has the advantages of low cost, favorable arrangement and good power generation effect. Of course, other metal materials with good conductivity may be used in the implementation.

Further, the insulating material is a ceramic or glass fiber material.

Ceramic or glass fiber high-temperature resistant material is a good inorganic electret material, and can better resist the high temperature of 300-500 ℃ in the ship tail gas compared with the organic electret material such as polytetrafluoroethylene and the like adopted in the patent of the background technology, so that the ceramic or glass fiber high-temperature resistant material is particularly suitable for the treatment of the high-temperature tail gas of the ship; and more importantly, the surface of the material is rougher compared with smooth polytetrafluoroethylene, the material has better charge storage capacity, and charged particles generated in the previous discharging process can enter a shallow layer of the surface of the material under the action of an electric field to be stored after primary discharging, so that the ionization treatment effect is greatly improved.

Further, the grounding electrode is made of a carbon fiber material. The material has low cost, easy implementation and good conductivity, and can better control the generation of ionization discharge effect.

Furthermore, in the plasma discharge electrode, the two grounding electrodes form a double-helix winding arrangement structure which is staggered with each other.

Therefore, compared with the structural mode of adopting a single-spiral grounding electrode in the background patent, the double-spiral arrangement of the two grounding electrodes can increase the ionization area range of the surface of the high-voltage electrode and reduce the ionization dark area. And more importantly, two grounding electrodes have adopted the mode of crossing arrangement, two grounding electrodes twine the crossing position like this, grounding electrode is compressed tightly to the close degree and other positions on high-voltage electrode surface different, and this position leads to passing through the electric current size also different with other grounding electrodes because two grounding electrodes contact each other, the contact point position can produce the effect that passes through the electric current grow in the twinkling of an eye because of resistance reduction, and then lead to the ionization discharge effect that the contact point produced to be distinguished from other grounding electrodes and high-voltage electrode surface contact position, can produce the ionization particle of higher energy level (or explain from the electric field stack angle, the grounding electrode of crossing double helix arrangement compares with the grounding electrode of equidirectional parallel spiral arrangement, the electric field stack effect that forms between different positions on high-voltage electrode surface and two grounding electrodes is different, and then lead to everywhere the ionization energy level different, and then can produce ionization particle of richness type). Therefore, the surface of the whole high-voltage electrode can generate more ionized particles with different energy levels, the types and the quantity of the generated ionized particles are greatly enriched, and the requirements that various harmful components in (ship) tail gas have slight differences in treatment requirements can be better met. Thus, the overall treatment effect on the (ship) tail gas is greatly improved.

Furthermore, the grounding electrode is formed by weaving a plurality of carbon fiber wires.

Therefore, the grounding electrode is formed by weaving a plurality of carbon fiber silk threads, so that the grounding electrode can have certain elasticity and flexible deformation capacity, the grounding electrode positioned below the cross position of the two grounding electrodes can deform and flatten, a gap is not reserved between the electrode positioned above and the surface of the high-voltage electrode as far as possible, and the electrode is prevented from being burnt by filiform discharge due to the gap. In addition, the grounding electrode is formed by weaving a plurality of carbon fiber wires, so that a plurality of tiny carbon fiber wire-shaped electrodes which are woven and wound mutually are formed, and the grounding electrode can be seen as a micro-electrode which can enable different cross-section positions of the grounding electrode to generate local currents with different instantaneous magnitudes, so that ionization discharge effects with different energy levels are formed at different positions, and the types and the quantity of generated ionized particles are greatly enriched. Meanwhile, a plurality of micro areas for generating and residing ionized particles are formed by weaving among the carbon fiber threads, so that the generated ionized particles can slowly diffuse outwards along the surface of the grounding electrode. Therefore, compared with the structure of the whole grounding electrode, the structure mode can greatly improve the ionization treatment effect of the exhaust gas from multiple angles.

Furthermore, in the plasma discharge electrode, two grounding electrodes are sequentially wound in a vertically staggered manner or the same grounding electrode is always wound below the staggered position.

The first winding mode is that the first grounding electrode presses the second grounding electrode at the first contact point, and the second grounding electrode presses the first grounding electrode at the second contact point, so that the contact performance of the grounding electrodes and the insulating layer can be improved, gaps are prevented from being generated to cause filiform discharge to burn the electrodes, and the safety is relatively high. And the second mode always keeps one grounding electrode below, so that the production and the manufacture can be more convenient.

Furthermore, in the plasma discharge electrode, two high-temperature resistant insulated wires are reversely wound outside the two grounding electrodes.

This is because the two ground electrodes are alternately wound and then pressed at the positions of the staggered points, so that the part of each ground electrode between two adjacent staggered points generates a reverse outward expansion force. Although this force is very small, the ground electrode is constructed by weaving a plurality of carbon fiber filaments and is exposed to a very harsh high temperature ionization environment for a long period of time. Therefore, the force can cause the grounding electrode to easily bulge at the middle position between two adjacent staggered points, so that the inner side surface of the grounding electrode is not tightly contacted to generate a gap, and the outer side surface generates carbon fiber threads to be broken. The electrode is burnt out by filiform power generation in the inner gap; the broken carbon fiber wires on the outer side bulge outwards to form burr protrusions, so that the glow discharge effect is poor. Therefore, after the two high-temperature-resistant insulated wires are reversely wound, the high-temperature-resistant insulated wires can pass through and press the middle position of the grounding electrode between two adjacent staggered points, so that the outward tension of the position is offset, the inner side of the grounding electrode is prevented from generating a gap, the outer side of the grounding electrode is better prevented from generating burr protrusions, and the phenomenon of point discharge is avoided. In addition, after two reverse high-temperature-resistant insulating wires are additionally wound, the high-temperature-resistant insulating wires and the grounding electrode can form a closed latticed convex area on the surface of the high-voltage electrode together, and the closed latticed area forms a reaction tank, so that ionized particles and harmful gas can be retained in the reaction tank for contact reaction, and the treatment is completed. Therefore, the improved structure can ensure the glow discharge effect of the electrode, greatly improve the ionization treatment effect and better prolong the service life of the electrode. Further, the high-temperature-resistant insulated wire is a nylon wire.

Has the advantages of good insulation effect, low cost and the like.

In summary, the above-mentioned solution also discloses a plasma discharge electrode structure capable of generating glow discharge effect, that is, two grounding electrodes are wound outside the high voltage electrode wrapped with insulating material to form a double-helix winding arrangement structure. Meanwhile, the scheme for further optimizing and improving the electrode structure at each position and the advantages and effects thereof are all established on the single plasma discharge electrode.

When the plasma discharge electrode structure is implemented, the plasma discharge electrode structure can be prepared by the following preparation method, firstly, a high-voltage electrode wrapped with an insulating material is obtained, a grounding electrode formed by weaving a plurality of carbon fiber silk threads is obtained, then, one end of the grounding electrode is pulled to one side surface of a high-voltage electrode end along an inclined direction and is bonded and fixed, the high-voltage electrode is pulled along an axial direction and is kept to relatively rotate with the grounding electrode, a single grounding electrode is spirally wound to the other end of the high-voltage electrode and is then bonded and fixed on the side surface of the high-voltage electrode end, then, a second grounding electrode needing to be wound is fixed by taking the side surface of the high-voltage electrode end at the other end as a starting point, the high-voltage electrode is pushed reversely or pulled to move along the axial direction at the same speed to reset and is kept to relatively rotate with the grounding electrode in the same direction, so that the second grounding electrode is wound on the high-voltage electrode and is formed to be crossed with the first grounding electrode, and the second grounding electrode is cut off and is bonded and fixed at the end part of the starting end of the side surface of the high-voltage electrode after the second grounding electrode is wound to the starting end of the return high-voltage electrode.

Therefore, the cross winding of the two grounding electrodes can be realized only by driving the high-voltage electrode to make a round trip along the axial direction and keeping the same-direction rotation, and the device is very convenient, fast, efficient and reliable. And then the winding of the two high-temperature resistant insulated wires can be realized by adopting the same mode.

When the plasma discharge electrode structure is implemented, the plasma discharge electrode structure can be prepared by adopting the following electrode winding equipment, the electrode winding equipment comprises a base, a fixed support is vertically and upwards arranged on each of the left side and the right side of the base, a sliding sleeve for allowing a high-voltage electrode to pass through is respectively and fixedly arranged in the middle of the upper end of the middle of the fixed support, a rotating frame which is integrally in a rectangular frame structure is rotatably arranged outside the two sliding sleeves by virtue of a bearing, the inner ends of the two sliding sleeves which are opposite are arranged and penetrate through the inner side surface of the middle position of the rotating frame, a pulley steering mechanism which is arranged in a staggered mode with the position of the sliding sleeve is further arranged on the side of the rotating frame, and a wire rolling installation mechanism is further arranged at the end part of the rotating frame.

Therefore, when the electrode winding equipment is used, the high-voltage electrode (wrapped by insulating materials) penetrates through the two sliding sleeves, the grounding electrode or the high-temperature-resistant insulating wire is mounted on the wire rolling mounting mechanism in a wire rolling mode, then the grounding electrode or the high-temperature-resistant insulating wire needing to be wound is led out from the wire rolling, the grounding electrode or the high-temperature-resistant insulating wire is made to be bonded and fixed to the starting end of the high-voltage electrode in the rotating frame after bypassing the pulley steering mechanism, and then only the high-voltage electrode needs to be pulled.

Furthermore, a driven gear coaxial with the sliding cylinder is fixed on the rotating frame, and the driven gear is in transmission connection with a driving motor fixed on the rotating frame through a gear mechanism.

Therefore, when the rotating frame is too heavy and is difficult to rotate by means of counterforce, the rotating frame can be driven by the motor to rotate so as to conveniently complete winding.

Furthermore, a pulley steering mechanism is respectively arranged at the front and the rear positions of the left side and the right side of the rotating frame. Thus, the four pulley steering structures can facilitate simultaneous arrangement and sequential winding of two ground electrodes and two high temperature resistant insulated wires. Furthermore, two ends of the rotating frame are respectively provided with a wire roller mounting mechanism capable of mounting two wire rollers. Therefore, the two grounding electrodes and the two high-temperature-resistant insulated wires can be conveniently arranged at the same time in a rolling mode.

Furthermore, the pulley steering mechanism comprises a horizontally arranged pulley positioning bolt, the head of the pulley positioning bolt can be vertically and slidably clamped in a dovetail groove vertically arranged on the inner side of the rotating frame, and a self-fixing nut is screwed on the pulley positioning bolt and realizes the fixation of the pulley positioning bolt; a steering pulley is movably sleeved on the bolt for positioning the pulley.

Thus, the vertical height position of the steering pulley can be changed and adjusted, and the winding angle can be adjusted.

Furthermore, pulley positioning bolts at two sides of the steering pulley are respectively screwed with a pulley positioning nut.

In this way, the position of the diverting pulley on the pulley positioning bolt can be adjusted by means of the two pulley positioning bolts as required.

Furthermore, a position adjusting spiral spring is connected between one side of the steering pulley and the corresponding pulley positioning nut.

Therefore, in the process that the grounding electrode is wound by the steering pulley, initial power can be applied to the spiral spring, the steering pulley can be driven to move back and forth on the bolt in the winding process by means of the initial power, and the tensioning angle and the tensioning force of the steering pulley are changed repeatedly. And the helical spring is gradually reduced in elasticity by resistance force in the repeated stretching process until the steering pulley stops moving gradually, so that the tension force applied at each moment in the winding process is different in size. Can make telluric electricity field on high-tension electrode every position compress tightly the degree inequality like this for the ionization effect that telluric electricity field position everywhere produced is rich in the change, can generate more abundant kinds of ionization particle, improves the waste gas ionization treatment effect. Especially, the structural characteristics that the grounding electrode is woven by a plurality of carbon fiber silk threads are combined, when the compression degree of the grounding electrode is changed, the carbon fiber silk threads are mixed and are compressed and deformed differently, so that more abundant ionized particle types are generated, and the waste gas treatment effect is greatly improved.

In conclusion, the invention has the advantages of good ionization effect, high tail gas treatment efficiency and long service life, and is particularly suitable for ship tail gas treatment application.

Drawings

Fig. 1 is a schematic structural diagram of a ship exhaust gas treatment device based on plasma ionization in the implementation of the invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a schematic view of the structure of a single plasma discharge electrode in the apparatus of fig. 1.

Fig. 4 is a schematic diagram of the structure of the end face of a single ground electrode in the device of fig. 1.

Fig. 5 is a schematic structural view of the electrode winding apparatus.

Fig. 6 is a schematic structural view of the single pulley steering mechanism of fig. 5.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The best mode is as follows: the ship tail gas treating method includes ionizing discharge of ship tail gas to produce plasma ionized particles, and degrading harmful components in the ship tail gas.

Thus, the conventional tail gas treatment is plasma in the form of arc discharge or corona discharge, and the ionization of the plasma has low plasma energy level and activity. In this application, adopt and produce the ionization discharge phenomenon between the wrap has insulating material's high voltage electrode surface and winding telluric electricity field, can generate the ionization plasma who has the glow discharge effect, can have higher energy level and activity, can satisfy boats and ships tail gas's processing demand better, improve treatment effect and treatment effeciency.

Wherein, two grounding electrodes are wound on the surface of the high-voltage electrode in a staggered way.

Specifically, the method is realized by connecting a ship tail gas treatment device based on plasma ionization into a ship tail gas channel, and the device is shown in fig. 1 to 4 and comprises a shell 1, wherein one end of the shell 1 is an air inlet end, the other end of the shell is an air outlet end, an air passage is formed in the middle of the shell 1, a plasma discharge electrode is arranged in the air passage and comprises a high-voltage electrode 2 which is positioned in the middle and is integrally columnar, an insulating material 3 is wrapped outside the high-voltage electrode 2, and a grounding electrode 4 is spirally wrapped outside the insulating material 3, wherein the plasma discharge electrode is arranged in a layered shape along the cross section of the air passage and is arranged in multiple layers at intervals along the air passage direction, and each layer of the plasma discharge electrode comprises multiple layers which are arranged in parallel at intervals in parallel.

When the device is used, the air inlet end and the air outlet end of the shell are connected into a tail gas discharge channel (of a ship) to be treated, the two ends of all the high-voltage electrodes and the two ends of the grounding electrode are respectively connected with the high-voltage end and the grounding end of a power supply (a high-frequency high-voltage alternating current power supply is adopted to output a standard sine wave with a waveform, and the high-voltage end and the grounding end can keep stable operation when the high-frequency high-voltage alternating current power supply is used for supplying power to the electrodes), and a plasma alternating current power supply system with a high-frequency high-voltage output circuit can be specifically adopted to realize control (the specific structure of a control part is the conventional prior art, and is not detailed here). After the device is electrified to reach the discharge voltage, a discharge loop is formed between a high-voltage electrode and a grounding electrode of a plasma discharge electrode, and based on the principles of dielectric barrier discharge and surface discharge, low-temperature plasma with similar glow discharge effect (namely, the discharge phenomenon is uniformly dispersed light blue discharge, the discharge current is in milliampere level, a small amount of current pulse exists, and the discharge is uniform, stable and threadless) can be generated on the surface of the contact junction of the electrodes, so that the tail gas is ionized and purified. The mode that the multilayer electrode of arranging through the direction interval along tail gas in this device, many electrodes of parallel interval arrangement of gas channel section along passing are followed to every layer of electrode, have greatly improved the regional quantity of ionization in the gas channel three-dimensional space, to admitting air and realizing three-dimensional ionization purification treatment, have greatly improved the tail gas treatment effect, are particularly useful for the big processing demand of boats and ships tail gas volume.

When the method is implemented, the specific number of layers can be selected according to actual needs, the interval between two adjacent layers of electrodes can be 1cm, and the interval between a single electrode and an electrode in the same layer can be 5mm.

During implementation, the shell 1 can be of a cuboid structure, the specific size can be selected according to an actual ship tail gas exhaust pipeline, the left surface and the right surface are channels, the upper surface, the lower surface, the front surface, the rear surface, the front surface and the rear surface can be made of stainless steel materials, holes are formed in the four surfaces in a staggered mode, and the plasma generation electrodes are installed. And then, respectively leading out the high-voltage ends and the grounding ends of all the electrodes, and respectively connecting the electrodes to the high-voltage end and the grounding end of a high-frequency high-voltage alternating-current power supply in a parallel connection manner to realize control.

Wherein, every two adjacent plasma discharge electrodes are arranged in a crisscross direction staggered by 90 degrees.

Therefore, the stereo-grid-shaped ionization area space can be better formed in a mode of staggered arrangement of the two adjacent layers of electrodes, and the ionization purification treatment of the passing air flow can be better realized.

The plasma discharge electrodes on different layers and arranged in the same direction are arranged in a staggered mode in the arrangement interval direction, so that gaps are not left in the projections of all the plasma discharge electrodes on the cross section along the tail gas flowing direction.

In this way, the projections of all the transverse and longitudinal rows of electrodes onto the cross section of the air duct can cover 100% of the entire cross section of the duct. The arrangement mode can realize that all tail gas pollutant gases can fully contact with the surface of the electrode, and ensures the treatment effect.

The high-voltage electrode 2 is a cylindrical structure made of a copper material. The diameter of the pipe can be 0.6mm when the pipe is implemented.

Wherein, the insulating material 3 is ceramic or glass fiber material. The thickness of the film can be selected to be 0.2mm during implementation, and surface discharge is favorably generated.

Ceramic or glass fiber high-temperature resistant material is a good inorganic electret material, and can better resist the high temperature of 300-500 ℃ in the ship tail gas compared with the organic electret material such as polytetrafluoroethylene and the like adopted in the patent of the background technology, so that the ceramic or glass fiber high-temperature resistant material is particularly suitable for the treatment of the high-temperature tail gas of the ship; and more importantly, the surface of the material is rougher compared with that of smooth polytetrafluoroethylene, the material has better charge storage capacity, and charged particles generated in the previous discharging process can enter a shallow layer of the surface of the material under the action of an electric field and be stored after primary discharging, so that the ionization treatment effect is greatly improved.

Wherein, the grounding electrode 4 is made of carbon fiber material. The material has low cost, easy implementation and good conductivity, and can better control the generation of ionization discharge effect.

In the plasma discharge electrode, the two grounding electrodes 4 form a double-helix winding arrangement structure which is staggered with each other.

The grounding electrode 4 is formed by weaving a plurality of carbon fiber wires 6. Specifically, the ground electrode may be formed of a carbon fiber in a 0.2mm diameter cluster composed of 1k carbon fiber filaments having a diameter of 7 um.

Therefore, the grounding electrode is formed by weaving a plurality of carbon fiber silk threads, so that the grounding electrode can have certain elasticity and flexible deformation capacity, the grounding electrode positioned below the cross position of the two grounding electrodes can deform and flatten, a gap is not reserved between the electrode positioned above and the surface of the high-voltage electrode as far as possible, and the electrode is prevented from being burnt by filiform discharge due to the gap. In addition, the grounding electrode is formed by weaving a plurality of carbon fiber wires, so that a plurality of tiny carbon fiber wire-shaped electrodes which are woven and wound mutually are formed, and the grounding electrode can be seen as a micro-electrode which can enable different cross-section positions of the grounding electrode to generate local currents with different instantaneous magnitudes, so that ionization discharge effects with different energy levels are formed at different positions, and the types and the quantity of generated ionized particles are greatly enriched. Meanwhile, a plurality of micro areas for generating and residing the ionized particles are formed by weaving among the carbon fiber threads, so that the generated ionized particles can slowly diffuse outwards along the surface of the grounding electrode. Therefore, compared with the structure of the whole grounding electrode, the structure mode can greatly improve the ionization treatment effect of the exhaust gas from multiple angles.

In the plasma discharge electrode, two ground electrodes 4 are sequentially wound in a vertically staggered manner or the same ground electrode is always wound below the staggered position.

In the plasma discharge electrode, two high temperature resistant insulated wires 5 are reversely wound outside two grounding electrodes.

This is because the two ground electrodes are alternately wound and then pressed at the positions of the staggered points, so that the part of each ground electrode between two adjacent staggered points generates a reverse outward expansion force. Although this force is very small, the ground electrode is constructed by weaving a plurality of carbon fiber filaments and is exposed to a very harsh high temperature ionization environment for a long period of time. Therefore, the force can cause the grounding electrode to easily bulge at the middle position between two adjacent staggered points, so that the inner side surface of the grounding electrode is not tightly contacted to generate a gap, and the outer side surface generates carbon fiber silk breakage. The electrode is burnt out by filiform power generation in the inner gap; the broken carbon fiber wires on the outer side bulge outwards to form burr protrusions, so that the glow discharge effect is poor. Therefore, after the two high-temperature-resistant insulated wires are reversely wound, the high-temperature-resistant insulated wires can pass through and press the middle position of the grounding electrode between two adjacent staggered points, so that the outward tension of the position is offset, the inner side of the grounding electrode is prevented from generating a gap, the outer side of the grounding electrode is better prevented from generating burr protrusions, and the phenomenon of point discharge is avoided. In addition, after two reverse high-temperature-resistant insulating wires are additionally wound, the high-temperature-resistant insulating wires and the grounding electrode can form a closed latticed convex area on the surface of the high-voltage electrode together, and the closed latticed area forms a reaction tank, so that ionized particles and harmful gas can be retained in the reaction tank for contact reaction, and the treatment is completed. Therefore, the improved structure can ensure the glow discharge effect of the electrode, greatly improve the ionization treatment effect and better prolong the service life of the electrode. When the high-temperature-resistant insulated wire is used, the difference between the two high-temperature-resistant insulated wires and the two grounding electrodes is 180 degrees, so that the two high-temperature-resistant insulated wires can just pass through and press the grounding electrodes to be positioned in the middle between two adjacent staggered points, and the effect is improved. Wherein the high temperature resistance refers to the resistance to the high temperature of tail gas at 300-400 ℃.

Wherein, the high temperature resistant insulated wire 5 is a nylon wire. The diameter of the pipe can be selected to be 0.1mm when the pipe is implemented.

The insulating device has the advantages of good insulating effect, low cost and the like.

In summary, the above-mentioned solution also discloses a plasma discharge electrode structure capable of generating glow discharge effect, that is, two grounding electrodes are wound outside the high voltage electrode wrapped with insulating material to form a mutual interlaced double spiral winding arrangement structure. Meanwhile, the scheme for further optimizing and improving the electrode structure at each position and the advantages and effects thereof are all established on the single plasma discharge electrode.

When the plasma discharge electrode structure is implemented, firstly, a high-voltage electrode wrapped with an insulating material is obtained, a grounding electrode formed by weaving a plurality of carbon fiber silk threads is obtained, then, one end of the grounding electrode is obliquely pulled to one side surface of the high-voltage electrode and is fixedly bonded, the high-voltage electrode is pulled along the axial direction and is kept to relatively rotate with the grounding electrode, the grounding electrode is spirally wound to the other end of the high-voltage electrode and is then fixedly bonded to the side surface of the high-voltage electrode at the end, then, a second grounding electrode needing to be wound is fixed by taking the side surface of the high-voltage electrode at the other end as a starting point, the high-voltage electrode is reversely pushed or pulled to move and reset along the axial direction at the same speed and is kept to relatively rotate with the grounding electrode in the same direction, so that the second grounding electrode is wound on the high-voltage electrode and is formed to be crossed with the first grounding electrode, and after the second grounding electrode is wound to the starting end of the return high-voltage electrode, the second grounding electrode is cut off and is fixedly bonded to the end of the starting end of the side surface of the high-voltage electrode.

Therefore, the cross winding of the two grounding electrodes can be realized only by driving the high-voltage electrodes to make a round trip along the axial direction and keeping the same-direction rotation, and the method is very convenient, rapid, efficient and reliable. And then the winding of the two high-temperature resistant insulated wires can be realized by adopting the same mode.

When the plasma discharge electrode structure is implemented, the plasma discharge electrode structure can be prepared by adopting the electrode winding equipment shown in fig. 5-6, the electrode winding equipment comprises a base 7, the left side and the right side of the base 7 are respectively vertically and upwards provided with a fixed support 8, the middle part of the upper end in the middle of the fixed support 8 is respectively and relatively fixedly provided with a sliding sleeve 9 for allowing a high-voltage electrode to pass through, a rotating frame 10 which is integrally in a rectangular frame structure is rotatably arranged outside the two sliding sleeves 9 by virtue of a bearing, the inner ends, opposite to the two sliding sleeves 9, of the two sliding sleeves are arranged and penetrate through the inner side surface of the middle position of the rotating frame, the side of the rotating frame is also provided with a pulley steering mechanism 11 which is arranged in a staggered mode with the sliding sleeve, and the end part of the rotating frame is also provided with a wire roller installation mechanism 12.

Wherein, a driven gear coaxial with the sliding cylinder is fixed on the rotating frame 10, and the driven gear is in transmission connection with a driving motor fixed on the rotating frame through a gear mechanism. Not shown in the figure.

When the rotating frame is too heavy and is difficult to realize rotation by means of reaction force, the rotating frame can be driven by the motor to realize rotation so as to conveniently finish winding.

Wherein, the front and back positions of the left and right sides of the rotating frame are respectively provided with a pulley steering mechanism 11. Thus, the four pulley steering structures can facilitate simultaneous arrangement and sequential winding of the two ground electrodes and the two high-temperature-resistant insulated wires. The two ends of the rotating frame are respectively provided with a wire roller mounting mechanism 12 which can mount two wire rollers. Thus, the two grounding electrodes and the two high-temperature-resistant insulated wires can be conveniently arranged at the same time when the four wires roll.

The pulley steering mechanism 11 comprises a horizontally arranged pulley positioning bolt 13, the head of the pulley positioning bolt 13 can be vertically and slidably clamped in a dovetail groove vertically arranged on the inner side of the rotating frame, and a self-fixing nut 14 is screwed on the pulley positioning bolt and realizes the fixation of the pulley positioning bolt; a diverting pulley 15 is movably sleeved on the pulley positioning bolt.

Wherein, pulley positioning bolts 13 at both sides of the diverting pulley 15 are respectively screwed with a pulley positioning nut 16.

Wherein, a position adjusting spiral spring 17 is also connected and arranged between one side of the steering pulley and the corresponding pulley positioning nut.

Like this at earthed electrode through the winding in-process of diverting pulley, can exert an initial power to coil spring, rely on this power to let the winding in-process diverting pulley can be driven and realize the back and forth movement on the bolt, and then change diverting pulley's tensioning angle and tensile force repeatedly. And the helical spring is gradually reduced in elasticity by resistance force in the repeated stretching process until the steering pulley stops moving gradually, so that the tension force applied at each moment in the winding process is different in size. Can make telluric electricity field on high-tension electrode every position compress tightly the degree inequality like this for the ionization effect that telluric electricity field position everywhere produced is rich in the change, can generate more abundant kinds of ionization particle, improves the waste gas ionization treatment effect. Especially, the structural characteristics that the grounding electrode is woven by a plurality of carbon fiber silk threads are combined, when the compression degree of the grounding electrode is changed, the carbon fiber silk threads are mixed and are compressed and deformed differently, so that more abundant ionized particle types are generated, and the waste gas treatment effect is greatly improved.

In conclusion, the device can be arranged in a ship tail gas pipeline, the generated high-temperature gas is directly treated through the hierarchical net-shaped electrode structure, the pollutant treatment efficiency can be effectively improved, the device is simple, the occupied area is small, the energy consumption is low, the energy is saved, the environment is protected, and the operation cost is obviously reduced.

Claims

1. The utility model provides an electrode winding equipment, including a base, a serial communication port, each vertical fixed bolster that upwards is provided with of the left and right sides on the base, upper end middle part is provided with a sliding sleeve that high voltage electrode passes through relatively fixed separately in the middle of the fixed bolster, two sliding sleeves rely on the bearing to rotationally install a whole rotating turret that is the rectangular frame structure outward, the inner installation that two sliding sleeves are relative is worn out the inboard surface in rotating turret middle part position, the rotating turret side still has the pulley steering mechanism with sliding sleeve position dislocation set, the rotating turret tip still is provided with wired installation mechanism that rolls.

2. The electrode winding apparatus according to claim 2, wherein a driven gear is further fixed to the rotary frame coaxially with the slide cylinder, and the driven gear is drivingly connected to a drive motor fixed to the rotary frame through a gear mechanism.

3. The electrode winding apparatus according to claim 2, wherein a pulley steering mechanism is provided at each of the front and rear positions of the left and right sides of the rotating frame.

4. The electrode winding apparatus of claim 3, wherein the turret is provided at each end with a wire roll mounting mechanism capable of mounting two wire rolls.

5. The electrode winding apparatus according to claim 1, wherein the pulley steering mechanism includes a horizontally disposed pulley positioning bolt, a head of the pulley positioning bolt is vertically slidably engaged in a dovetail groove vertically disposed inside the turret, and a self-fixing nut is screwed onto the pulley positioning bolt to fix the pulley positioning bolt; a steering pulley is movably sleeved on the pulley positioning bolt.

6. The electrode winding apparatus according to claim 5, wherein pulley positioning nuts are respectively screwed to the pulley positioning bolts on both sides of the diverting pulley.

7. The electrode winding apparatus as claimed in claim 5, wherein a position adjusting coil spring is further coupled between one side of the deflection pulley and the corresponding pulley positioning nut.