WO2021098881A1 - Dispositif de combustion à contrainte de champ électrique et dispositif de production d'énergie d'incinération de déchets à contrainte de champ électrique - Google Patents

Dispositif de combustion à contrainte de champ électrique et dispositif de production d'énergie d'incinération de déchets à contrainte de champ électrique Download PDF

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WO2021098881A1
WO2021098881A1 PCT/CN2020/130922 CN2020130922W WO2021098881A1 WO 2021098881 A1 WO2021098881 A1 WO 2021098881A1 CN 2020130922 W CN2020130922 W CN 2020130922W WO 2021098881 A1 WO2021098881 A1 WO 2021098881A1
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Prior art keywords
electric field
electrode
confinement
discharge
voltage
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PCT/CN2020/130922
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English (en)
Chinese (zh)
Inventor
唐万福
赵晓云
汤红池
崔兆慧
奚勇
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上海必修福企业管理有限公司
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Publication of WO2021098881A1 publication Critical patent/WO2021098881A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods

Definitions

  • the invention relates to the technical field of combustion and power generation, in particular to an electric field constrained combustion device and an electric field constrained waste incineration power generation device.
  • Combustion currently mainly exists in the processes of garbage disposal, power generation, steelmaking, industrial processing, aerospace, transportation, vehicles and ships, and kitchen cooking.
  • the main pollutants of unconstrained combustion are: dust, nitrate, sulfur, mercury, dioxins, VOCs, nuclear dust, oil mist, oil fume, etc.
  • the main environmental hazards caused by unconstrained combustion are: haze, acid rain, ocean desertification , Atmospheric ozone hole, greenhouse effect, El Nino effect, plant genetic changes, human genetic changes.
  • the main personal hazards caused by unconstrained burning are: cardiovascular and cerebrovascular diseases, respiratory diseases, nervous system diseases, genetic system diseases, frequent malignant tumors, and genetic mutations.
  • Garbage is a waste product that has lost use value and cannot be used. It is an important part of the material cycle, and it is a solid and fluid substance that is not needed or used. Garbage disposal has always been a problem that plagues the world today. The collection, storage, transportation, stacking, disposal, and recycling of garbage will cause harm and impact on the surrounding environment. The faster the society develops, the more trash is produced, and the more trash is troubled. Specifically, microplastics derived from plastic products themselves release toxic and harmful substances, such as heavy metals, persistent organic pollutants (such as flame retardants, polychlorinated biphenyls, ortho-benzene plasticizers, etc.), which can affect the marine ecological environment.
  • toxic and harmful substances such as heavy metals, persistent organic pollutants (such as flame retardants, polychlorinated biphenyls, ortho-benzene plasticizers, etc.), which can affect the marine ecological environment.
  • microplastics will pass through the marine food chain and finally enter the human food chain, thereby posing a threat to human health and safety, and affecting human health and quality of life.
  • household garbage which is divided into four categories: dry garbage, wet garbage, recyclables and hazardous garbage, some of which have no renewable value, such as long degradation cycles.
  • Plastic products that are difficult to screen, or combustible mixed waste that can only be simply and uniformly treated, can be burned.
  • waste incineration can lead to secondary pollution of the environment, including waste gas discharged after incineration, fly ash after combustion, foul odor, etc., especially air pollution caused by the emission of flue gas particles.
  • the purpose of the present invention is to provide an electric field constrained combustion device and an electric field constrained waste incineration power generation device.
  • the present invention uses at least two electrodes to form an electric field, where at least one electrode is in contact with the burning flame, and part of the combustion occurs in the electric field.
  • the electric field is used to confine the liquid particles and/or solid particles in the combustion flame to change the shape of the combustion flame.
  • the combustion mode so that the particulate matter in the combustion is fully burned, and the volatilization of the particulate matter is reduced.
  • different groups of discharge electrodes are arranged in sequence in the order of the distance to the confinement electrode near the burning flame.
  • the electric field generated by the group of discharge electrodes and the confinement electrode is caused. Failure, compared with the group of discharge electrodes, the electric field generated by the group of discharge electrodes farther from the confinement electrode begins to restrain the burning flame in it, and so on, when the burning flame is in an unstable state of shaking up and down In this case, at least one confinement electric field can still be maintained to confine the burning flame.
  • the present invention uses the electric field formed by the at least two electrodes to constrain the combustion flame generated by garbage incineration, so that the garbage incineration is more fully, and the volatilization of flue gas particles is reduced. After garbage incineration, high temperature and high pressure tail gas is obtained, and the high temperature and high pressure tail gas is used for Power generation and exhaust gas purification treatment, thereby realizing waste energy recycling and reducing environmental pollution.
  • Example 1 provided by the present invention, an electric field confinement combustion device, comprising at least one discharge electrode, at least one confinement electrode, an electric field is generated between the at least one discharge electrode and the at least one confinement electrode; A constraining electrode contacts, at least a part of the burning flame is located in the electric field, and the electric field has a constraining effect on combustion.
  • Example 2 provided by the present invention includes Example 1 above, wherein the burning flame is in contact with the at least one confinement electrode.
  • Example 3 provided by the present invention includes the above examples 1 or 2, wherein the at least one confinement electrode is arranged in an area close to the combustion flame, the at least one confinement electrode is in contact with the combustion flame, and the at least one discharge electrode is opposite to the combustion flame.
  • the confinement electrode is arranged in a region away from the combustion flame and generates an electric field with the at least one confinement electrode that has a constraining effect on the combustion flame.
  • Example 4 provided by the present invention includes any one of the foregoing Examples 1 to 3, wherein all the confinement electrodes included in the at least one confinement electrode are equipotential electrodes.
  • the example 5 provided by the present invention includes any one of the above examples 1 to 4, wherein a plurality of through holes are provided on the at least one confinement electrode.
  • Example 6 provided by the present invention includes any one of the foregoing Examples 1 to 5, wherein the shape of the at least one discharge electrode is needle-shaped, plate-shaped, rod-shaped or mesh-shaped.
  • Example 7 provided by the present invention includes any one of the foregoing Examples 1 to 5, wherein the shape of the at least one confinement electrode is point, line, plate, tube, ball, or mesh.
  • Example 8 provided by the present invention includes any one of the above examples 1 to 7, wherein the voltage between the at least one discharge electrode and the at least one confinement electrode is greater than the initial corona initiation voltage and less than the initial corona initiation voltage. Starting voltage.
  • Example 9 provided by the present invention includes any one of the foregoing Examples 1 to 8, wherein the voltage between the at least one discharge electrode and the at least one confinement electrode is 0.1kv/mm-2.4kv/mm .
  • the example 10 provided by the present invention includes the above example 9, wherein the voltage between the discharge electrode and the confinement electrode is 0.7 kv/mm-1.6 kv/mm.
  • Example 11 provided by the present invention includes any one of the foregoing Examples 1 to 10, wherein the electric field constrained combustion device further includes at least one power source, and one electrode of the power source is electrically connected to the at least one discharge electrode. Connected, the other electrode of the power source is electrically connected to the at least one confinement electrode; the power source provides the voltage between the discharge electrode and the confinement electrode.
  • the example 12 provided by the present invention includes the above example 11, wherein the at least one discharge electrode is electrically connected to the cathode of the power source, and the confinement electrodes are all electrically connected to the anode of the power source.
  • the example 13 provided by the present invention includes the above example 12, wherein the at least one confinement electrode constrains the reduction of the volatilization of particulate matter in the combustion flame.
  • the example 14 provided by the present invention includes the above example 12, wherein the at least one confinement electrode constrains the flattening of the combustion flame.
  • the example 15 provided by the present invention includes the above example 11, wherein the at least one discharge electrode is electrically connected to the anode of the power source, and the confinement electrodes are all electrically connected to the cathode of the power source.
  • the example 16 provided by the present invention includes the above example 15, wherein the at least one confinement electrode confines the combustion flame to increase in volume.
  • Example 17 provided by the present invention includes any one of the foregoing Examples 1 to 16, wherein the burning flame surface and the at least one confinement electrode are at equal potential, and the at least one discharge electrode and the combustion The electric field is generated between the flame surface.
  • Example 18 provided by the present invention includes any one of the above examples 11 to 17, wherein the power supply provides a voltage for the at least one discharge electrode and the at least one confinement electrode, so that the at least one discharge There is always an electric field force between the electrode and the burning flame surface.
  • Example 19 provided by the present invention includes the above-mentioned Example 18, wherein the voltage provided by the power source for the at least one discharge electrode and the at least one confinement electrode is greater than the initial corona initiation voltage but less than the initial initiation voltage.
  • the voltage is 0.1 kv/mm-2.4 kv/mm, more preferably, the voltage is 0.7 kv/mm-1.6 kv/mm.
  • Example 20 provided by the present invention includes any one of the foregoing Examples 8 to 19, wherein the power source is a programmable DC power source.
  • Example 21 provided by the present invention includes the above example 20, wherein the lowest output current of the programmable DC power supply is the initial corona initiation current, and the self-protection current is the initial initiation current.
  • Example 22 provided by the present invention includes the above examples 20 or 21, wherein the voltage provided by the programmable DC power supply is adjusted with the change of the distance between the at least one discharge electrode and the surface of the burning flame to The electric field force is always maintained between the at least one discharge electrode and the burning flame surface.
  • the example 23 provided by the present invention includes the above example 22, wherein when the distance between the burning flame surface and the at least one discharge electrode becomes smaller, the current of the electric field increases, and when the programmable DC power supply It is detected that the current increases to the first current setting value, and the self-protection function is activated to reduce the output voltage to the first voltage setting value, so that the electric field force is always maintained between the at least one discharge electrode and the burning flame surface exist.
  • the example 24 provided by the present invention includes the above example 23, wherein the first current setting value is less than the initial ignition current, and the first voltage setting value is less than the initial ignition voltage.
  • the example 25 provided by the present invention includes the above example 22, wherein when the distance between the burning flame surface and the at least one discharge electrode increases, the current of the electric field decreases, and when the programmable DC power supply It is detected that the current is reduced to the second current setting value, and the self-protection function is activated to increase the voltage to the second voltage setting value, so that the electric field force always exists between the at least one discharge electrode and the burning flame surface.
  • Example 26 provided by the present invention includes the above example 25, wherein the second current setting value is greater than the initial corona initiation current, and the second voltage setting value is greater than the initial corona initiation voltage.
  • Example 27 provided by the present invention includes any one of the foregoing Examples 1 to 26, wherein the at least one discharge electrode includes at least two sets of discharge electrodes, each set of discharge electrodes includes at least one discharge electrode, and each set of discharge electrodes The distances to the constraining electrodes are different; the distances from the same group of discharge electrodes to the constraining electrodes are the same, and the distances from different groups of discharge electrodes to the constraining electrodes are different.
  • the example 28 provided by the present invention includes the above example 25, wherein the discharge electrodes of different groups are arranged in order of the distance from the confinement electrode from short to far. Preferably, the discharge electrodes of different groups are arranged above the flame in order of the distance from the confinement electrode from near to far.
  • Example 29 provided by the present invention includes any one of the foregoing Examples 11 to 28, wherein there are multiple programmable DC power supplies, the number of programmable DC power supplies and the number of groups of discharge electrodes Correspondingly, a group of discharge electrodes is correspondingly electrically connected to one electrode of a power source, and the constraining electrodes are electrically connected to the other electrode of all power sources in common.
  • the example 30 provided by the present invention includes any one of the above examples 27 to 29, wherein during the combustion process, the flame flies to contact with a group of discharge electrodes of the at least one discharge electrode, and the group of discharge electrodes is in contact with a group of discharge electrodes in the at least one discharge electrode.
  • the electric field formed by the confinement electrode is invalid; compared with the group of discharge electrodes, the electric field is established between a group of discharge electrodes farther from the confinement electrode and the flame surface.
  • Example 31 provided by the present invention includes any one of the foregoing Examples 11 to 30, wherein the programmable DC power supply has a self-protection function and a self-recovery function.
  • Example 32 provided by the present invention includes any one of the foregoing Examples 1 to 31, wherein the confinement electrode includes a plurality of confinement electrodes, and all confinement electrodes are located near one or more of the combustion flame in the circumferential direction of the combustion flame. Distribution in the direction. Preferably, all confinement electrodes are distributed along one or more of the left and right direction, the front and back direction, and the oblique direction of the combustion flame.
  • Example 33 provided by the present invention includes the above-mentioned example 32, in which all confinement electrodes are distributed in multiple directions along the circumference of the combustion flame in a region close to the combustion flame to form a spherical shape.
  • Example 34 provided by the present invention includes any one of Examples 1 to 33, wherein it further includes an insulating structure for achieving insulation between the discharge electrode and the confinement electrode.
  • Example 35 provided by the present invention, including the electric field constrained combustion device described in any one of Examples 1 to 34, is used to control waste incineration, coal combustion for power generation, fuel oil, chemical reactions, or combustion reactions that produce particulate matter in a fuel engine Applications.
  • Example 36 provided by the present invention provides a method for confining combustion by an electric field, which includes the following steps:
  • At least one discharge electrode and at least one confinement electrode, and at least one confinement electrode is in contact with the burning flame
  • At least a part of the burning flame is located in the electric field, and the electric field has a constraining effect on combustion.
  • the example 37 provided by the present invention includes the above example 36, wherein all the confinement electrodes included in the at least one confinement electrode are connected to form an equipotential electrode.
  • the example 38 provided by the present invention includes the above example 36 or 37, wherein the shape of the at least one discharge electrode is selected to be needle-shaped, plate-shaped, rod-shaped or mesh-shaped.
  • the example 39 provided by the present invention includes the above example 36 or 37, wherein the shape of the at least one constraining electrode is selected to be point-shaped, linear, plate-shaped, tubular, spherical, or mesh-shaped.
  • Example 42 provided by the present invention includes any one of the foregoing Examples 36 to 39, wherein the voltage value of the voltage applied between the at least one discharge electrode and the at least one confinement electrode is greater than the initial The corona onset voltage is less than the initial onset voltage.
  • Example 42 provided by the present invention includes any one of the foregoing Examples 36 to 39, wherein the voltage applied between the at least one discharge electrode and the at least one confinement electrode is 0.1 kv/ mm-2.4kv/mm, preferably, the voltage is 0.7kv/mm-1.6kv/mm.
  • Example 42 provided by the present invention includes any one of the foregoing Examples 36 to 39, wherein the applying a voltage between the at least one discharge electrode and the at least one confinement electrode includes applying a power source to the A voltage is applied between the at least one discharge electrode and the at least one confinement electrode, so that the electric field is generated between the at least one discharge electrode and the at least one confinement electrode.
  • the example 43 provided by the present invention includes the above example 42, wherein one electrode of the power source is electrically connected to at least one discharge electrode, and the other electrode of the power source is electrically connected to the confinement electrode.
  • the example 44 provided by the present invention includes the above example 43, wherein the at least one discharge electrode is electrically connected to the cathode of the power source, and the confinement electrodes are all electrically connected to the anode of the power source.
  • the example 45 provided by the present invention includes the above example 44, wherein the at least one confinement electrode constrains the reduction of the volatilization amount of particulate matter in the combustion flame.
  • the example 45 provided by the present invention includes the above example 44, wherein the at least one confinement electrode constrains the flattening of the combustion flame.
  • Example 47 provided by the present invention includes the above example 43, wherein the at least one discharge electrode is electrically connected to the anode of the power source, and the confinement electrodes are all electrically connected to the cathode of the power source.
  • the example 48 provided by the present invention includes the above example 47, wherein the at least one confinement electrode constrains the increase in the volume of the combustion flame.
  • Example 49 provided by the present invention includes any one of the foregoing Examples 42 to 48, wherein the power source is a programmable DC power source.
  • the example 50 provided by the present invention includes the above example 49, wherein the lowest output current of the programmable DC power supply is the initial corona initiation current, and the self-protection current is the initial initiation current.
  • the example 50 provided by the present invention includes any one of the above examples 36 to 50, wherein the at least one confinement electrode is in contact with the burning flame, and the burning flame surface is at the same potential as the confinement electrode, An electric field is generated between the at least one discharge electrode and the burning flame surface.
  • Example 52 provided by the present invention includes any one of the foregoing Examples 36 to 51, wherein applying a voltage between the at least one discharge electrode and the at least one confinement electrode includes the programmable direct current power supply The voltage of is adjusted with the change of the distance between the at least one discharge electrode and the burning flame surface, so that the electric field force always exists between the at least one discharge electrode and the burning flame surface.
  • Example 53 provided by the present invention includes the above example 52, wherein when the distance between the burning flame surface and the at least one discharge electrode becomes smaller, the current of the electric field increases, and when the programmable DC power supply It is detected that the current increases to the first current setting value, and the self-protection function is activated to reduce the output voltage to the first voltage setting value, so that the electric field force always exists between the at least one discharge electrode and the burning flame surface.
  • the example 54 provided by the present invention includes the above example 53, wherein the first current setting value is selected to be less than the initial ignition current, and the first voltage setting value is selected to be less than the initial ignition voltage.
  • the example 55 provided by the present invention includes the above example 52, wherein when the distance between the burning flame surface and the at least one discharge electrode becomes larger, the current of the ionization electric field decreases, and when the programmable direct current The power supply detects that the current is reduced to the second current setting value, and starts the self-protection function to increase the voltage to the second voltage setting value, so that the electric field force always exists between the at least one discharge electrode and the burning flame surface.
  • the example 55 provided by the present invention includes the above example 54, wherein the second current setting value is selected to be greater than the initial corona initiation current, and the second voltage setting value is selected to be greater than the initial corona initiation voltage.
  • Example 57 provided by the present invention includes any one of the foregoing Examples 42 to 56, wherein a programmable DC power supply with a self-protection function and a self-recovery function is selected.
  • Example 58 provided by the present invention includes any one of the foregoing Examples 36 to 57, wherein the at least one discharge electrode includes at least two sets of discharge electrodes, each set of discharge electrodes includes at least one discharge electrode, and each set of discharge electrodes The distance from the at least one confinement electrode is different; the distance from the same group of discharge electrodes to the at least one confinement electrode is the same, and the distance from different groups of discharge electrodes to the at least one confinement electrode is different.
  • the example 59 provided by the present invention includes the above-mentioned example 58, wherein the different groups of discharge electrodes are arranged in order of the distance from the confinement electrode from short to far. Preferably, different groups of discharge electrodes are arranged above the flame in order of the distance from the confinement electrode from short to far.
  • the example 60 provided by the present invention includes the above examples 58 or 59, wherein during the combustion process, the flame flies to contact with a group of discharge electrodes of the at least one discharge electrode, and the group of discharge electrodes is bound to the at least one discharge electrode.
  • the electric field formed by the electrodes fails. Compared with the group of discharge electrodes, the electric field is formed between a group of discharge electrodes farther from the confinement electrode and the flame surface.
  • Example 61 provided by the present invention includes any one of the foregoing Examples 36 to 60, wherein the at least one discharge electrode and the at least one confinement electrode are insulated and isolated.
  • Example 62 provided by the present invention is an electric field constrained waste incineration power generation device, comprising: an incineration component, which is used to confine the incineration of waste based on the electric field to generate incineration tail gas.
  • the example 63 provided by the present invention includes the above example 62, wherein the incineration assembly includes the electric field constrained combustion device of any one of examples 1 to 34.
  • Example 64 provided by the present invention includes the electric field-constrained waste incineration power generation device described in Example 62 or 63, wherein the incineration component includes an incineration cavity, and the electric field restricts at least a part of the discharge electrode of the combustion device and the at least One confinement electrode is located in the incinerator, and the electric field generated between the at least one discharge electrode and the at least one confinement electrode is located in the incinerator.
  • Example 65 provided by the present invention includes the electric field constrained waste incineration power generation device described in any one of Examples 62 to 64, wherein the incineration cavity is provided with a mixed gas inlet for a mixture of ozone and air to pass into the incineration cavity , The mixed gas inlet is connected to the outlet end of a venturi tube.
  • Example 66 provided by the present invention includes the electric field constrained waste incineration power generation device described in any one of Examples 62 to 65, which further includes an ozone generator; the ozone generator is provided with an ozone outlet, and the ozone outlet is connected to the station.
  • the low-pressure pipe section of the venturi tube uses the venturi principle to suck the ozone produced by the ozone generator into the venturi tube.
  • Example 67 provided by the present invention includes the electric field constrained waste incineration power generation device described in any one of Examples 62 to 66, which further includes a fan; the outlet of the fan communicates with the inlet end of the venturi, and Yu passed the air into the venturi tube.
  • Example 68 provided by the present invention includes the electric-field-constrained waste incineration power generation device described in any one of Examples 62 to 67, which further includes an air preheater, which is arranged in the incineration cavity for incineration. The mixture of air and ozone in the cavity is heated.
  • Example 68 provided by the present invention includes the electric field constrained waste incineration power generation device described in Example 68, wherein the inlet of the air preheater is in communication with the mixed gas inlet provided on the incineration cavity, and the air preheater The outlet is located near the garbage incineration flame and can also be inserted into the incineration flame.
  • Example 70 provided by the present invention includes the electric-field-constrained waste incineration power generation device described in any one of Examples 62 to 68, and further includes a power generation component connected to the incineration component for generating power based on the incineration exhaust gas.
  • Example 71 provided by the present invention includes the electric field constrained waste incineration power generation device described in any one of Examples 62 to 70, wherein the power generation component includes at least one Stirling generator, and the heat sensitive of the Stirling generator The part is inserted into the incineration cavity.
  • Example 71 provided by the present invention includes the electric field constrained waste incineration power generation device described in any one of Examples 62 to 70, wherein the power generation component includes the power generation component including a turbofan and a generator, and the turbofan is used for Rotating under the action of the incineration exhaust gas, the generator is connected to the turbofan and is used to rotate with the rotation of the turbofan to generate electric energy.
  • the power generation component includes the power generation component including a turbofan and a generator
  • the turbofan is used for Rotating under the action of the incineration exhaust gas
  • the generator is connected to the turbofan and is used to rotate with the rotation of the turbofan to generate electric energy.
  • Example 73 provided by the present invention includes the electric field constrained waste incineration power generation device described in Example 71, the turbofan includes a turbofan shaft and a turbofan blade; the generator includes a generator stator and a generator rotor, and The generator rotor is connected with the turbofan shaft for rotating with the rotation of the turbofan shaft.
  • Example 74 provided by the present invention includes the electric-field-constrained waste incineration power generation device described in any one of Examples 62 to 73, and further includes a tail gas purification component connected to the power generation component and used to burn tail gas and/or The incineration tail gas passing through the power generation component is purified.
  • Example 75 provided by the present invention includes the electric field constrained waste incineration power generation device described in Example 74, and the exhaust gas purification component includes one or more combinations of an electrostatic precipitator, an electrocoagulation defogger, and an ozone generator.
  • Example 76 provided by the present invention includes the electric field constrained waste incineration power generation device described in any one of Examples 62 to 75, and further includes an energy storage battery, which is connected to the power generation component and is used to store the generation of the power generation component. Of electrical energy.
  • particulate matter is generated in both the “combustion” and the “garbage incineration”.
  • the restraining effect includes: changing the shape and size of the combustion flame to make the combustion more complete, that is, to change the combustion form, improve the combustion efficiency, and reduce the emission of particulate matter and/or pollutants during the combustion process.
  • the “particulate matter” includes, but is not limited to, liquid particulate matter and solid particulate matter produced by combustion, such as one or more of soot, liquid mist, aerosol, oil mist, and molecular clusters.
  • FIG. 1 is a schematic diagram of the structure of an electric field constrained combustion device in Embodiment 1 of the present invention.
  • Fig. 2 is a schematic structural diagram of an electric field constrained combustion device in embodiment 2 of the present invention.
  • Fig. 3 is a schematic structural diagram of an electric field constrained combustion device in embodiment 3 of the present invention.
  • Fig. 4 is a schematic structural diagram of an electric field constrained waste incineration power generation device in embodiment 4 of the present invention.
  • Fig. 5 is a schematic structural diagram of an electric field constrained waste incineration power generation device in embodiment 5 of the present invention.
  • the electric field confinement combustion device is used to confine combustion and includes at least one discharge electrode and at least one confinement electrode, and an electric field is generated between the at least one discharge electrode and the at least one confinement electrode; a burning flame In contact with the confinement electrode, the burning flame has the same electric potential as the at least one confinement electrode, at least a part of the burning flame is located in the electric field, and the electric field has a constraining effect on the combustion located in the electric field.
  • the electric field constrained combustion device can be applied to the technical fields of combustion control of particulate matter generated by garbage incineration, coal for power generation, fuel oil, chemical reactions, and fuel engines.
  • At least one electrode is in contact with the burning flame, and part of the combustion occurs in an electric field.
  • the electric field is used to confine the liquid particles and/or solid particles in the combustion flame to change the shape and form of the combustion flame. , Can make the particulate matter in combustion fully burn, reduce particulate matter ⁇ pollutant emissions, and reduce environmental pollution.
  • the at least one confinement electrode is disposed in a region close to the combustion flame, the at least one confinement electrode is in contact with the combustion flame, and the at least one discharge electrode is disposed away from the combustion flame relative to the confinement electrode.
  • the flame area and the confinement electrode generate an electric field that has a constraining effect on the combustion flame, and part of the combustion flame is located in the electric field.
  • all the confinement electrodes included in the at least one confinement electrode are connected to each other as equipotential electrodes.
  • a plurality of through holes are provided on the at least one confinement electrode.
  • the at least one confinement electrode in the present invention has a porous structure, and the through hole on the confinement electrode can be any hole that allows substances to confine the electrode.
  • the burning flame can enter the electric field generated between the discharge electrode and the confinement electrode through the through hole on the confinement electrode. When the burning flame passes through the through hole of the confinement electrode, it comes into contact with the confinement electrode. When the combustion flame contacts the confinement electrode, the particulate matter in the burning flame is electrically conductive through the contact and is charged with the same polarity as the confinement electrode. Therefore, the burning flame has the same potential as the confinement electrode.
  • the shape of the at least one discharge electrode is needle-shaped, plate-shaped, rod-shaped or mesh-shaped.
  • the shape of the at least one confinement electrode is point-shaped, linear, plate-shaped, tube-shaped, spherical, or mesh-shaped.
  • the voltage between the at least one discharge electrode and the at least one confinement electrode is greater than the initial corona initiation voltage and less than the initial initiation voltage.
  • the initial corona initiation voltage refers to the minimum voltage value that can generate discharge between the discharge electrode and the confinement electrode and ionize the gas.
  • the initial ignition voltage refers to the minimum voltage value that can make the discharge electrode and the confinement electrode break down and emit light.
  • the initial corona voltage and initial glow voltage may be different. However, for those skilled in the art, for a certain gas and working environment, the corresponding initial corona initiation voltage and initial initiation voltage are determined.
  • the burning flame surface and the at least one confinement electrode have the same electric potential, and the electric field is generated between the at least one discharge electrode and the burning flame surface.
  • the electric field confinement combustion device further includes at least one power source, one electrode of the power source is electrically connected to the at least one discharge electrode, and the other electrode of the power source is electrically connected to the at least one discharge electrode. Restrict the electrical connection of the electrodes.
  • the at least one discharge electrode is electrically connected to the cathode of the power source
  • the at least one confinement electrode is electrically connected to the anode of the power source.
  • the shape of the combustion flame changes to a flat shape and the volume becomes smaller.
  • the combustion is confined near the confinement electrode, and the volatilization of particulate matter in the confinement combustion flame is reduced.
  • the O 3 generated by the corona discharge of the electric field helps to strengthen the stable and full combustion of the flame, and realize the low emission of combustion smoke.
  • the at least one discharge electrode is electrically connected to the anode of the power source
  • the at least one confinement electrode is electrically connected to the cathode of the power source.
  • the power supply provides a voltage for the at least one discharge electrode and the at least one confinement electrode, so that an electric field force is always maintained between the at least one discharge electrode and the burning flame surface exist.
  • the voltage provided by the power supply for the at least one discharge electrode and the at least one confinement electrode is greater than the initial corona initiation voltage and less than the initial initiation voltage.
  • the at least one discharge electrode and the at least one confinement electrode are respectively electrically connected to two electrodes of a power source.
  • the voltage loaded on the at least one discharge electrode and the at least one confinement electrode needs to select an appropriate voltage level.
  • the specific voltage level selected depends on the volume, temperature resistance, dust holding rate, etc. of the electric field device, and also needs to consider humidity , Oxygen content and other actual working environment.
  • the voltage between the at least one discharge electrode and the at least one confinement electrode may be 0.1 kv/mm-2.4 kv/mm.
  • the voltage between the discharge electrode and the confinement electrode is 0.7 kv/mm-1.6 kv/mm.
  • the power source is a programmable DC power source.
  • An embodiment of the present invention uses a programmable DC power supply to automatically change the voltage applied between the at least one discharge electrode and the at least one confinement electrode to ensure that the at least one discharge electrode and the surface of the burning flame The electric field force is always maintained; the electric field force is always maintained, so that the electric field between the at least one discharge electrode and the burning flame surface always ionizes the gas.
  • the lowest output current of the programmable DC power supply is the initial corona initiation current
  • the self-protection current is the initial initiation current.
  • the voltage provided by the programmable DC power supply is adjusted with the change of the distance between the at least one discharge electrode and the surface of the burning flame, so that the at least one discharge electrode is An electric field is established between the surfaces of the burning flame, and the electric field is always in the ionization phase.
  • the ionization stage refers to a stage in which an electric field force is always maintained between the at least one discharge electrode and the burning flame surface to generate a discharge and ionize the gas.
  • the predetermined value of the first current is less than the initial ignition current, and the predetermined value of the first voltage is less than the initial ignition voltage.
  • the initial ignition current that is, the current at the ignition point refers to the minimum current value of breakdown and light emission between the burning flame surface and the discharge electrode, and the corresponding voltage in this state is the initial ignition voltage.
  • the initial ignition current and the initial ignition voltage may be different. However, for a person skilled in the art, for a certain gas and working environment, the corresponding starting point current and initial starting voltage are determined. In an embodiment of the present invention, the voltage of the programmable DC power supply is less than the initial ignition voltage.
  • the second current setting value is to activate the self-protection function to increase the voltage to the second voltage setting value, so that the electric field force always exists between the at least one discharge electrode and the burning flame surface.
  • the second current setting value is greater than the initial corona initiation current, and the second voltage setting value is greater than the initial corona initiation voltage.
  • the initial corona initiation current that is, the current at the corona initiation point, refers to the minimum current value at which a discharge occurs between the burning flame surface and the discharge electrode and ionizes the gas, and the corresponding voltage in this state is the initial corona initiation voltage.
  • the magnitude of the corona initiation point current and the initial corona initiation voltage may be different.
  • the corresponding corona initiation point current and the corona initiation voltage are determined.
  • the voltage of the power supply is greater than the initial corona initiation voltage.
  • the DC power supply detects that the current signal reaches the set value, and starts the self-protection function to reduce the voltage to less than the initial ignition voltage, so that there is always a protective electric field force between the at least one discharge electrode and the burning flame surface.
  • the current of the electric field decreases, and the current decreases to a current close to the corona initiation point
  • programmable The DC power supply detects that the current signal reaches the set value, and starts the self-protection function to increase the voltage to be greater than the initial corona initiation voltage, so that the protective electric field force exists between the at least one discharge electrode and the burning flame surface.
  • the at least one discharge electrode includes at least two groups of discharge electrodes, each group of discharge electrodes is at a different distance from the confinement electrode, and each group of discharge electrodes includes at least one discharge electrode;
  • the distances of the confinement electrodes are the same, and the distances from the discharge electrodes of different groups to the confinement electrodes are different.
  • different groups of discharge electrodes are arranged in the same direction near the burning flame in the order of the distance from the confinement electrode from short to far.
  • the discharge electrodes of different groups are arranged above the flame in order of the distance from the confinement electrode from near to far.
  • the number of the power supplies corresponds to the number of groups of the discharge electrodes, and a group of discharge electrodes corresponds to one electrode electrically connected to a power supply.
  • the confinement electrode is commonly connected to the other electrode of the multiple power sources.
  • the other electrode of the multiple power sources is connected to a common lead, and all constraining electrodes are connected to the common lead to form equipotential electrodes.
  • the programmable DC power supply has a self-protection function and a self-recovery function.
  • the confinement electrode includes a plurality of confinement electrodes, and all confinement electrodes are distributed in one or more directions in the circumferential direction of the combustion flame in a region close to the combustion flame.
  • all constraining electrodes are distributed in one or more of the left and right direction, the front and back direction, and the oblique direction of the combustion flame.
  • all confinement electrodes are distributed in multiple directions of the combustion flame in a region close to the combustion flame to form a spherical shape.
  • the electric field confinement combustion device includes one discharge electrode and at least two confinement electrodes.
  • the electric field confinement combustion device includes a discharge electrode and three confinement electrodes, the discharge electrode is needle-shaped, the three confinement electrodes are all plate-shaped, and the plate-shaped confinement electrode is A number of through holes are opened; in this embodiment, the discharge electrode is arranged in an area away from the combustion flame, three confinement electrodes are arranged in an area close to the combustion flame, and at least one confinement electrode is in contact with the combustion flame.
  • multiple confinement electrodes are used in combination to form a multi-dimensional electric field with the discharge electrode, and the combustion state can be controlled according to needs, and the motion trajectory or state of the controlled object can be controlled according to the combined electric field. , To achieve the desired purpose of the design.
  • a plurality of confinement electrodes are included, and all confinement electrodes are distributed in multiple directions along the circumference of the combustion flame in a region close to the combustion flame to form a spherical shape to form a spherical electric field to constrain the combustion.
  • the at least one discharge electrode and the at least one confinement electrode can be made of temperature-resistant conductive materials.
  • the material of the discharge electrode can be titanium alloy or tungsten steel.
  • the material can be 20# steel or Q345B steel.
  • an insulating structure is further included to realize insulation between the at least one discharge electrode and the at least one confinement electrode.
  • electrodes are used to form an electric field
  • the combustion flame is a conductor
  • at least one confinement electrode is in contact with the combustion flame
  • at least a part of the burning flame is located in the electric field.
  • the method of electric field constrained combustion includes the following steps:
  • At least one discharge electrode, at least one confinement electrode, and at least one confinement electrode is in contact with the burning flame
  • At least a part of the burning flame is located in the electric field, and the electric field has a constraining effect on combustion.
  • all the confinement electrodes included in the at least one confinement electrode are connected to form an equipotential electrode.
  • the voltage between the at least one discharge electrode and the at least one confinement electrode is selected to be greater than the initial corona initiation voltage and less than the initial initiation voltage by applying a voltage; preferably, the voltage is 0.1kv/mm-2.4kv/mm, more preferably, the voltage is 0.7kv/mm-1.6kv/mm.
  • the applying voltage includes controlling the power supply to apply a voltage between the at least one discharge electrode and the at least one confinement electrode, so that the at least one discharge electrode and the at least one confinement electrode are different from each other. An electric field is generated between.
  • one electrode of the power source is electrically connected to the at least one discharge electrode, and the other electrode of the power source is electrically connected to the at least one confinement electrode.
  • the at least one discharge electrode is electrically connected to the cathode of the power source, and all the electrodes are electrically connected to the anode of the power source through the confinement.
  • the at least one confinement electrode constrains the reduction of the volatilization of particulate matter in the combustion flame. In an embodiment of the present invention, the at least one confinement electrode constrains the flattening of the combustion flame.
  • the at least one discharge electrode is electrically connected to the anode of the power source, and the confinement electrodes are all electrically connected to the cathode of the power source.
  • the at least one confinement electrode constrains the increase in the volume of the combustion flame.
  • the power source is a programmable DC power source.
  • the programmable DC power supply has a self-protection function and a self-recovery function.
  • the method further includes: generating an electric field between at least one discharge electrode and the burning flame surface.
  • the voltage provided by the programmable DC power supply is adjusted by applying a voltage including the change of the distance between the at least one discharge electrode and the burning flame surface, so that the at least one There is always an electric field force between the discharge electrode and the burning flame surface, and the electric field always deals with the ionization phase.
  • the programmable DC power supply is selected to provide the at least one discharge electrode and the at least one confinement electrode with a voltage greater than an initial corona initiation voltage and less than an initial initiation voltage.
  • the programming DC power supply detects that the current signal reaches the first current setting value, and starts the self-protection function to reduce the output voltage to less than the initial ignition voltage, so that the electric field force is maintained between the at least one discharge electrode and the burning flame surface exist.
  • the current of the ionization electric field decreases, and the current decreases to the current close to the corona initiation point.
  • the programming DC power supply detects that the current signal reaches the second current setting value, and starts the self-protection function to increase the voltage to greater than the initial corona initiation voltage, so that the electric field force is maintained between the at least one discharge electrode and the burning flame surface Exist, the electric field is in the ionization phase.
  • the at least one discharge electrode includes at least two groups of discharge electrodes, each group of discharge electrodes is at a different distance from the confinement electrode, and each group of discharge electrodes includes at least one discharge electrode;
  • the distances of the confinement electrodes are the same, and the distances from the discharge electrodes of different groups to the confinement electrodes are different.
  • different groups of discharge electrodes are arranged in sequence near the combustion flame in the order of the distance from the confinement electrode from short to far.
  • the discharge electrodes of different groups are arranged in the same flame direction in the order of the distance from the confinement electrode from near to far.
  • different groups of discharge electrodes are arranged above the flame in order of the distance from the confinement electrode from short to far.
  • the flame flies to contact with a group of discharge electrodes of the at least one discharge electrode, and the electric field formed by the group of discharge electrodes and the confinement electrode fails, and the group of discharge electrodes In comparison, the electric field is formed between a group of discharge electrodes farther from the confinement electrode and the flame surface.
  • the at least one discharge electrode and the at least one confinement electrode are insulated and isolated.
  • the electric field constrained garbage incineration power generation device uses the electric field to constrain the incompletely burned pyrolysis particles, aerosols and other particulates in the garbage combustion to return to the flame and burn again, so that the combustion is sufficient and the generated dust is reduced;
  • the Venturi principle is adopted in the air It is mixed with ozone produced by ionization, and then preheated to completely convert the ozone into oxygen and transport it to the incineration chamber to achieve oxygen-enriched combustion, adapting to the complexity of waste pyrolysis combustion, high efficiency and environmental protection; generating electricity based on the high temperature and high pressure exhaust gas generated by waste incineration, thereby achieving Energy recycling of garbage is avoided, and environmental pollution is avoided; the generated energy can be fed into battery packs or connected to the grid for transmission, so that the waste generated by communities or factories can be directly recycled, greatly reducing the hazards of garbage, and truly turning waste into treasure.
  • the invention ensures high combustion heating efficiency, low secondary pollution and low combustion fluctuation through electric field restriction, and solves the problem of traditional garbage power generation that needs to add fuel to support combustion. It can also avoid the impact of garbage types and heating value fluctuations, and reduce the impact on the burner.
  • the thermal shock and chemical shock of other equipment in the internal equipment can reduce the loss and prolong the service life, so that the complex and changeable garbage can be burned stably and continuously; the exhaust gas is discharged after being purified by dust removal, volatile matter removal, aerosol removal, and recovery of high-priced heavy metal ions.
  • the incinerator is discharged and used as fertilizer for collection, storage and transportation, which greatly reduces the impact on the environment; the entire device can be miniaturized and can be distributed in urban communities, farms, factories, restaurants, farms and other places where waste and garbage are generated, which is convenient for large-scale production.
  • the scale is widely promoted and used. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial value.
  • the electric field constrained waste incineration power generation device includes: an incineration component, which is used to confine the incineration of waste based on the electric field to generate incineration tail gas.
  • the incineration component includes the above-mentioned electric field constrained combustion device.
  • the incineration assembly further includes an incineration cavity, and at least a part of the at least one discharge electrode and the at least one confinement electrode of the electric field confine the combustion device are located in the incinerator, and the at least one confinement electrode is located in the incinerator.
  • the electric field generated between the discharge electrode and the at least one confinement electrode is located in the incinerator.
  • the electric field is generated between the at least one discharge electrode and the surface of the burning flame.
  • the incineration chamber is provided with a mixed gas inlet for the mixed gas of ozone and air to pass into the incineration chamber, and the mixed gas inlet is connected to the outlet end of a venturi tube.
  • the electric field constrained waste incineration power generation device further includes an ozone generator; the ozone generator is provided with an ozone outlet, and the ozone outlet is connected to the low-pressure pipe section of the venturi tube for discharging ozone. The ozone produced by the generator is sucked into the venturi tube.
  • the electric field constrained waste incineration power generation device further includes a fan; the outlet of the fan communicates with the inlet end of the venturi tube for passing air into the venturi tube.
  • the electric field constrained waste incineration power generation device further includes an air preheater, which is arranged in the incineration cavity, and is used to heat the mixed gas of air and ozone that is passed into the incineration cavity to heat the mixed gas Ozone is completely converted into oxygen, increasing the oxygen content in the air and saving energy.
  • an air preheater which is arranged in the incineration cavity, and is used to heat the mixed gas of air and ozone that is passed into the incineration cavity to heat the mixed gas Ozone is completely converted into oxygen, increasing the oxygen content in the air and saving energy.
  • the temperature of the air preheater is above 70°C, and the ozone is quickly converted into oxygen when the temperature is above 70°C.
  • the inlet of the air preheater communicates with the mixed gas inlet provided on the incineration cavity, and the outlet of the air preheater is located near the combustion flame and can be inserted into the incineration flame.
  • the electric field constrained waste incineration power generation device further includes a power generation component connected to the incineration component and used to generate power based on the incineration exhaust gas.
  • the power generation component includes at least one Stirling generator, and the heat-sensitive part of the Stirling generator is inserted into the incineration cavity to convert the heat of the incineration exhaust gas in the incineration cavity into mechanical energy. And then converted into electrical energy.
  • the power generation component of the present invention can also adopt a turbofan power generation mode.
  • the turbofan directly converts the high temperature and high pressure tail gas into shaft power to drive the generator to generate electricity, avoiding the steam generated by boiling water and the steam driving the steam turbine to generate electricity.
  • a huge organization can realize the miniaturization and simplification of power generation equipment, which can be distributed in communities, factories, and restaurants, so that it can be promoted and used in practice.
  • the power generation component includes a turbofan and a generator.
  • the turbofan is used to rotate under the action of the incineration exhaust gas.
  • the generator is connected to the turbofan, and is used to rotate with the rotation of the turbofan to generate electric energy.
  • the turbofan includes a turbofan shaft and a turbofan blade; the generator includes a generator stator and a generator rotor, and the generator rotor is connected to the turbofan shaft for following the turbofan shaft. Rotate and rotate.
  • the electric field constrained waste incineration power generation device further includes a tail gas purification component connected to the power generation component and used to purify the incineration tail gas passing through the power generation component.
  • Waste incineration will produce smoke, volatile organic matter, nitrate, etc. Direct emissions will form haze, irritating odors, acid rain, and even organic domestic waste mixed with waste industrial waste will also produce carcinogens, dioxins, and high-priced heavy metal ions.
  • exhaust gas purification is achieved through high-efficiency and low-resistance dust recovery, organic volatile purification, aerosol collection, and sulfur and nitrate removal.
  • the exhaust gas purification assembly includes one or more combinations of an electrostatic precipitator, an electrocoagulation defogger, and an ozone generator. Existing electrostatic precipitators, electrocoagulation defoggers and ozone generators are all applicable.
  • the electrostatic precipitator can achieve a PM2.5 particle size of more than 99.9%, and a smoke PM0.23 particle size of more than 98%; the electrocoagulation demister can achieve aerosol and heavy metal ion removal efficiency of more than 95%; ozone denitration The efficiency of sulfur and chlorine can reach more than 99%. Therefore, after the exhaust gas purification component is recovered, only carbon dioxide gas is discharged after the waste incineration power generation device of the present invention is recycled, thereby avoiding secondary environmental pollution.
  • the electric field constrained waste incineration power generation device further includes an energy storage battery, which is connected to the power generation component, and is used to store the electrical energy generated by the power generation component.
  • the garbage incineration power generation device of the present invention can also be directly connected to the electrical device, so as to provide the electrical energy required by the electrical device.
  • the electric field confinement combustion device provided by this embodiment includes a power source 1, a discharge electrode 2 and a confinement electrode 3 that forms an electric field with the discharge electrode 2.
  • the discharge electrode 2 is electrically connected to the cathode of the power source 1, and the confinement electrode 3 is electrically connected to the anode of the power source 2 to construct an electric field.
  • the discharge electrode 2 is a needle-shaped electrode, and the constraining electrode 3 is a plate-shaped electrode.
  • the constraining electrode 3 is provided with a number of through holes 31 through which combustion products such as flame and smoke can pass.
  • the burning flame 4 is located in the electric field formed by the discharge electrode 2 and the confinement electrode 3, and is in contact with the confinement electrode 3.
  • the confinement electrode 3 and the burning flame surface are equipotential, and the discharge electrode 2 and the burning flame The electric field is generated between the 4 surfaces.
  • the output voltage of the power supply 1 can be set according to the shortest distance between the discharge electrode 2 and the surface of the burning flame 4, and the corresponding voltage per millimeter is 0.7-1.6 kV.
  • the electric field confinement combustion device includes a power source 1, a discharge electrode 2, and a confinement electrode 3 that forms an electric field with the discharge electrode 2.
  • the discharge electrode 2 is electrically connected to the cathode of the power source 1, and the confinement electrode 3 is connected to the power source 2.
  • the anode is electrically connected to build an electric field.
  • the discharge electrode 2 is a needle-shaped electrode
  • the constraining electrode 3 is a plate-shaped electrode.
  • the constraining electrode 3 is provided with a number of through holes 31 through which combustion products such as flame and smoke can pass.
  • the output voltage of the power supply can be set according to the shortest distance between the discharge electrode 2 and the surface of the burning flame 4, and the corresponding voltage per millimeter is 0.5-1.5 kV.
  • This embodiment includes one discharge electrode, two confinement electrodes 3.
  • the two confinement electrodes 3 are connected to the anode of the power supply 1 to form an equipotential electrode.
  • the combustion flame 4 is located between the two confinement electrodes 3 and is connected to the two confinement electrodes 3 When the electrodes 3 are in contact, the two confining electrodes 3 and the burning flame 4 are of equal potential, and an electric field is generated between the surfaces of the burning flame 4. Utilize the restraining effect of electric field on combustion to change the shape and form of combustion flame.
  • the electric field confinement combustion device uses a dust collecting electrode as the combustion confinement electrode 3, and the discharge electrode 2 serves as an electric field establishing electrode.
  • the formed particulate matter is combined with the discharge electrode 2 and the surface of the burning flame 4
  • the ion current in the electric field combines negatively charged, and then returns to the flame to re-burn, making the combustion more complete.
  • the electric field confinement combustion device includes three groups of discharge electrodes, one confinement electrode 1 and three programmable DC power supplies.
  • the three groups of discharge electrodes include a first group of discharge electrodes 21, a second group of discharge electrodes 22, and
  • the third group of discharge electrodes 23, the first group of discharge electrodes 21, the second group of discharge electrodes 22, and the third group of discharge electrodes 23 each include a plurality of needle-shaped discharge electrodes.
  • the first group of discharge electrodes 21, the second group of discharge electrodes 22, and the third group of discharge electrodes 23 are respectively arranged above the flame in the order of the distance from the confinement electrode 1 from near to far;
  • the three power sources include the first programmable DC The power supply 31, the second programmable DC power supply 32, and the third programmable DC power supply 33.
  • the plurality of discharge electrodes of the first group of discharge electrodes 21 are all electrically connected to the cathode of the first programmable DC power source 31, and the plurality of discharge electrodes of the second group of discharge electrodes 22 are all electrically connected to the cathode of the second programmable DC power source 32,
  • the multiple discharge electrodes of the third group of discharge electrodes 23 are electrically connected to the cathodes of the third programmable DC power source 33; the anodes of the first programmable DC power source 31, the second programmable DC power source 32, and the third programmable DC power source 33
  • the constraining electrode 1 is electrically connected through a common lead.
  • the first programmable DC power supply 31, the second programmable DC power supply 32, and the third programmable DC power supply 33 all have self-recovery and self-protection functions.
  • the output voltage of each programmable DC power supply can be set according to the shortest distance between each group of discharge electrodes and the surface of the combustion flame, and the voltage corresponding to each millimeter distance is 0.7-1.6 kV.
  • the burning flame 4 is in contact with the constraining electrode 1, and the first programmable DC power supply 31, the second programmable DC power supply 32, and the third programmable DC power supply 33 are turned on, and the first programmable DC power supply is applied to the first programmable DC power supply.
  • a voltage is applied between the group of discharge electrodes 21 and the confinement electrode 1.
  • the at least partially burning flame 4 is located between the first group of discharge electrodes 21 and the confinement electrode 1 and is in contact with the confinement electrode 1.
  • the burning flame has the same potential as the confinement electrode 1.
  • a first electric field 100 is established between the first group of discharge electrodes 21 and the surface of the burning flame 4, the electric field ionizes oxygen and other gases in the air to form an ion flow, which is incompatible with the unburnt escaping from the flame
  • the particulate matter is combined to make the particulate matter charged and negatively charged.
  • the charged particulate matter is attracted by the constraining electrode and moves toward the combustion flame and constraining electrode 1. Part of the charged particulates returns to the flame to re-burn, making the combustion more complete, and finally burning. The particles are reduced.
  • the shape and size of the burning flame will be unstable due to different fuel components.
  • the burning flame will occasionally shake upwards or downwards.
  • the surface of the burning flame and the discharge The distance between the electrodes increases and the current of the first electric field 100 decreases.
  • the first programmable DC power supply detects that the current signal reaches the second current setting value, and then starts The self-protection function increases the voltage to the second voltage setting value (greater than the initial corona initiation voltage), so that there is always an electric field force between the first group of discharge electrodes 21 and the surface of the burning flame 4 to keep the gas in the electric field being continuously ionized ;
  • the flame shakes upwards the distance between the surface of the burning flame 4 and the first group of discharge electrodes 21 becomes smaller, and the current of the first electric field 100 increases.
  • the first can After the programming DC power supply 31 detects that the current signal reaches the first current setting value, it starts the self-protection function to lower the voltage to the first voltage setting value (less than the initial ignition voltage), so that the first group of discharge electrodes 21 and the There is always an electric field force on the surface of the burning flame 4, which keeps the gas in the electric field continuously ionized; when the flame moves upwards to contact the first group of discharge electrodes 21, the first group of discharge electrodes 21 are connected to the confinement electrode 1, and the first electric field 100 fails, the first programmable DC power supply 31 is automatically turned off, the first electric field 100 fails, and a second electric field 200 is formed between the second group of discharge electrodes 22 and the surface of the burning flame 4 to start to restrain the combustion.
  • the programming DC power supply 31 detects that the current signal reaches the first current setting value, it starts the self-protection function to lower the voltage to the first voltage setting value (less than the initial ignition voltage), so that the first group of discharge electrodes 21 and the There is always an electric field
  • the self-protection function of the second programmable DC power supply 32 will control the voltage applied between the second group of discharge electrodes 22 and the confinement electrode 1 so that there is always an electric field in the second electric field 200 Force, the gas in the second electric field 200 is ionized; when the burning flame 4 moves up to contact with the second group of discharge electrodes 22, the second group of discharge electrodes 22 is connected to the confinement electrode 1, and the second programmable DC power supply 32 It is automatically disconnected, the second electric field 200 fails, and a third electric field 300 is formed between the third group of discharge electrodes 23 and the surface of the burning flame 4 to start to restrain the combustion.
  • multiple groups of discharge electrodes with different distances from the confinement electrode can be set to overcome the defect that the burning flame is easily contacted with the discharge electrode due to changes in shape and volume, which leads to electric field failure.
  • the electric-field-constrained waste incineration power generation device includes: an incineration component, including an electric-field-constrained combustion device and an incinerator, the incinerator is provided with an incineration cavity 1; the electric-field-constrained combustion device includes a discharge electrode 2.
  • the three confinement electrodes 3 are in the shape of a plate, and the three confinement electrodes 3 are connected to each other to form a U-shaped structure, and the confinement electrodes 3 are set in the incineration Inside the cavity 1, it is fixedly connected to the housing 101 of the incineration cavity 1; the shape of the discharge electrode 2 is needle-shaped, one end of the discharge electrode 2 is inserted into the incineration cavity 1, and is located in the groove of the U-shaped structure of the constraining electrode, and the other end is covered with
  • the insulating material 201 passes through the housing 101 of the incineration chamber 1 and is electrically connected to the cathode of the power source 4.
  • the anode of the power source 4 is electrically connected to the confinement electrode 3, and the power source 4 applies a voltage between the discharge electrode 2 and the confinement electrode 3.
  • the garbage to be incinerated is transported into the incineration chamber 1 through the rotary loader 5 for incineration.
  • the incineration flame 100 contacts the confinement electrode 3 and enters the discharge electrode 2 and the confinement electrode through the through hole 301 opened on the confinement electrode 3
  • the flame 100 is the plasma conductor forming the same electric potential as the confinement electrode 3.
  • An electric field is formed between the surface of the flame 100 and the discharge electrode 2, and the oxygen and other substances in the gas between the surface of the flame 100 and the discharge electrode 2 are ionized to form an ion current.
  • the ion current combines with the unburned particles escaping from the flame to make the particles negatively charged.
  • the charged particles are attracted by the restraint and move toward the restraining electrode 3 and the flame 100, and some of the charged particles return to the flame. Re-combustion in the medium to make the combustion more complete, and ultimately reduce the particulate matter produced by the combustion.
  • the shape of the burning flame changes to a flat shape and the volume becomes smaller, the combustion is confined near the confinement electrode 3, and the pollutant emission is reduced.
  • the power supply 4 applies sufficient voltage between the discharge electrode 2 and the confinement electrode 3 to ensure that there is always an electric field force between the flame surface and the discharge electrode 2.
  • the power supply 4 can be a programmable DC power supply, and the output voltage of the power supply 4 can be set according to the shortest distance between the burning flame 100 and the discharge electrode 2, and the voltage corresponding to each millimeter distance is 0.7-1.6 kV.
  • the incineration component incinerates garbage based on electric field restraint to generate incineration tail gas.
  • the incineration assembly further includes an ozone generator 6 and an air preheater 7; the air preheater 7 is arranged in the incineration cavity 1, and the inlet 701 of the air preheater 7 is connected to the mixed gas inlet 102 of the incineration cavity 1. ,
  • the outlet 702 of the air preheater 7 near the flame 100 can also be inserted into the flame 100; the temperature of the air preheater can be set according to actual needs.
  • the incineration chamber 1 is provided with a mixed gas inlet 102, and the mixed gas inlet 12 supplies a mixed gas of ozone and air to pass into the incineration chamber 1, and the mixed gas inlet 102 is connected to the outlet end of a venturi tube 8.
  • the ozone outlet of the ozone generator 6 is connected to the low-pressure pipe section of the venturi tube 8, and the inlet end of the venturi tube 8 is connected to a fan 9 through which air is passed into the venturi tube 8.
  • the low-pressure pipe section generates low pressure to suck the ozone generated by the ozone generator 6 into the venturi tube 8.
  • the mixed gas of air and ozone then enters the air preheater 7 through the mixed gas inlet 102 of the incineration chamber 1 and the inlet 701 of the air preheater 7 , Heating can convert the ozone in the mixed gas into oxygen, increase the oxygen content, carry out oxygen-enriched combustion for garbage incineration, improve combustion efficiency, adapt to the complexity of garbage pyrolysis combustion, high efficiency and environmental protection, and can also save energy.
  • This embodiment also includes a power generation component, which is connected to the incineration component and is used to generate power based on the incineration tail gas.
  • the power generation assembly includes a Stirling generator 10, and the heat-sensitive part of the Stirling generator 10 is inserted into the incineration cavity 1 to convert the heat of the incineration exhaust gas in the incineration cavity 1 into mechanical energy, and then the mechanical energy is converted into electrical energy.
  • This embodiment also includes an energy storage battery 11 connected to the Stirling generator 10 and used to store the electrical energy generated by the Stirling generator 10.
  • This embodiment also includes an exhaust gas purification assembly, which includes an electrostatic dust removal device 12, and any existing electrostatic dust removal device is applicable.
  • the electrostatic precipitator is connected to the incineration chamber to purify the incineration tail gas, and the purified gas is discharged into the air to reduce environmental pollution.
  • the electric field constrained waste incineration power generation device provided in this embodiment includes an incineration component.
  • the incineration component includes an electric field constrained combustion device and an incinerator.
  • the incinerator is provided with an incineration chamber 1; it also includes a power generation component and an exhaust gas purification component. Except that the electric field constrained combustion device is different, the others are the same as in Example 4.
  • the electric field confinement combustion device of this embodiment includes three sets of discharge electrodes, three confinement electrodes 3 provided with multiple through holes 301, and three power sources.
  • the three confinement electrodes 3 are in the shape of a plate, and the three confinement electrodes 3 are connected to each other.
  • the groove of the zigzag structure includes the first group of discharge electrodes 21, the second group of discharge electrodes 22, and the third group of discharge electrodes 23; the first group of discharge electrodes 21, the second group of discharge electrodes 22, and the third group of discharge electrodes 23, respectively
  • the three power sources include a first power source 41, a second power source 42, and a third power source 43 in order of the distance from the constraining electrode 3 from near to far.
  • the plurality of discharge electrodes of the first group of discharge electrodes 21 are all electrically connected to the cathode of the first power source 41
  • the plurality of discharge electrodes of the second group of discharge electrodes 22 are all electrically connected to the cathode of the second power source 42
  • the third group of discharge electrodes 23 A plurality of discharge electrodes are electrically connected to the cathode of the third power source 43
  • the anodes of the first power source 41, the second power source 42, and the third power source 43 are electrically connected to the restraining electrode 3 through a common connection
  • the first power source 41 is the first A voltage is applied between the group of discharge electrodes 21 and the confinement electrode 3
  • the second power source 42 is applied between the second group of discharge electrodes 22 and the confinement electrode 3
  • the third power source 43 is between the third group of discharge electrodes 23 and the confinement electrode 3. Apply voltage.
  • the working process and restraining effect of the electric field constrained combustion device on the combustion flame 100 are the same as those in the third embodiment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

L'invention concerne un dispositif de combustion à contrainte de champ électrique et un dispositif de production d'énergie d'incinération de déchets à contrainte de champ électrique. Le dispositif de combustion à contrainte de champ électrique comprend au moins une électrode de décharge et au moins une électrode de contrainte, un champ électrique étant produit entre le ou les électrodes de décharge et le ou les électrodes de contrainte ; et une flamme de combustion est en contact avec le ou les électrodes de contrainte, au moins une partie de la flamme de combustion étant située à l'intérieur du champ électrique, et le champ électrique présentant un effet de contrainte sur la combustion. Le dispositif de production d'énergie d'incinération de déchets à contrainte de champ électrique comprend un ensemble d'incinération utilisé pour l'incinération des déchets à contrainte de champ électrique et produisant un gaz résiduaire d'incinération. L'ensemble d'incinération comprend le dispositif de combustion à contrainte de champ électrique.
PCT/CN2020/130922 2019-11-22 2020-11-23 Dispositif de combustion à contrainte de champ électrique et dispositif de production d'énergie d'incinération de déchets à contrainte de champ électrique WO2021098881A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201911158379.8 2019-11-22
CN201911158379 2019-11-22
CN202010648179.7A CN112833421A (zh) 2019-11-22 2020-07-07 一种电场约束燃烧装置及电场约束垃圾焚烧发电装置
CN202010648179.7 2020-07-07

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WO2021098881A1 true WO2021098881A1 (fr) 2021-05-27

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996001394A1 (fr) * 1994-07-01 1996-01-18 Torfinn Johnsen Ensemble d'electrodes concu pour s'utiliser dans une chambre de combustion
CN103492805A (zh) * 2011-02-09 2014-01-01 克利尔赛恩燃烧公司 用于扁平化火焰的系统和方法
US20150219333A1 (en) * 2012-08-27 2015-08-06 Clearsign Combustion Corporation Electrodynamic combustion system with variable gain electrodes
US20190203935A1 (en) * 2010-04-01 2019-07-04 Clearsign Combustion Corporation Electrodynamic control in a burner system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996001394A1 (fr) * 1994-07-01 1996-01-18 Torfinn Johnsen Ensemble d'electrodes concu pour s'utiliser dans une chambre de combustion
US20190203935A1 (en) * 2010-04-01 2019-07-04 Clearsign Combustion Corporation Electrodynamic control in a burner system
CN103492805A (zh) * 2011-02-09 2014-01-01 克利尔赛恩燃烧公司 用于扁平化火焰的系统和方法
US20150219333A1 (en) * 2012-08-27 2015-08-06 Clearsign Combustion Corporation Electrodynamic combustion system with variable gain electrodes

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