CN221063099U - Wet electrostatic precipitator - Google Patents
Wet electrostatic precipitator Download PDFInfo
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- CN221063099U CN221063099U CN202322750312.1U CN202322750312U CN221063099U CN 221063099 U CN221063099 U CN 221063099U CN 202322750312 U CN202322750312 U CN 202322750312U CN 221063099 U CN221063099 U CN 221063099U
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- exhaust gas
- electrostatic precipitator
- wet electrostatic
- cathode
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- 239000012719 wet electrostatic precipitator Substances 0.000 title claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000009413 insulation Methods 0.000 claims description 15
- 229910052573 porcelain Inorganic materials 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 60
- 239000002912 waste gas Substances 0.000 abstract description 30
- 238000000746 purification Methods 0.000 abstract description 12
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 17
- 238000005507 spraying Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 6
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- 150000002500 ions Chemical class 0.000 description 4
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000012717 electrostatic precipitator Substances 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
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- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
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- Electrostatic Separation (AREA)
Abstract
The utility model discloses a wet electrostatic precipitator which comprises an exhaust gas chamber, an electrode chamber and a gas purifying chamber, wherein the exhaust gas chamber is provided with an exhaust gas inlet, the exhaust gas inlet is provided with a concentric reducer pipe, the gas inlet end of the concentric reducer pipe is provided with a porous plate, the joint of the exhaust gas chamber and the electrode chamber is provided with a flow equalizing device, and the porous plate, the concentric reducer pipe and the flow equalizing device are matched to enable exhaust gas to uniformly enter the electrode chamber. The waste gas enters through the porous plate, the waste gas is uniformly distributed for the first time, the speed and the pressure of the waste gas are regulated in the concentric reducer pipe, the waste gas is uniformly distributed for the second time when entering into the electrode chamber through the flow equalization device, and the waste gas can uniformly and stably enter into the electrode chamber after sequentially passing through the porous plate, the concentric reducer pipe and the flow equalization device, so that the burden of the waste gas at all parts in the electrode chamber is consistent, the purification efficiency is consistent, and the whole waste gas purification efficiency is high and the quality is good.
Description
Technical Field
The utility model relates to the technical field of electrostatic dust collection, in particular to a wet electrostatic dust collector.
Background
The wet electrostatic precipitator can be further divided into a horizontal type (horizontal type) and a vertical pipe type (vertical type), wherein the horizontal type internal structure is of a plate type structure, the trend of gas is in and out in the horizontal direction, and the structure is similar to that of plate type low-temperature plasma equipment. The vertical pipe type is a pipe type structure, and the gas flow direction is vertical in and out. The wet electrostatic dust collection equipment is of a vertical structure, and the purification effect is more obvious under the condition of the same air quantity.
The basic principle of the wet electrostatic precipitator is that the wet electrostatic precipitator is subjected to three stages of charging, collecting and ash removing. The gas in the space near the cathode line is ionized by using a high-voltage direct-current electric field, and the gas particles move under the action of the electric field force and are deposited on the surface of a dust collecting anode after being charged. Mainly comprises the following four complex and interrelated physical processes: (1) ionization of the gas. (2) agglomeration and charging of aerosols and suspended dust particles. (3) the charged dust particles and the aerosol move toward the electrode. (4) water film or flushing ash removal.
Applying tens of thousands of volts of direct current high voltage electricity between an anode and a cathode of a wet electrostatic dust collector, generating a corona layer around a corona wire under the action of a strong electric field, and enabling air in the corona layer to generate avalanche ionization, so that a large amount of negative ions and a small amount of positive ions are generated, and the process is called corona discharge; the dust (fog) particles entering the wet electric dust collector with the flue gas collide with the positive ions and the negative ions to be charged, and the charged dust (fog) particles move to the anode due to the action of high-voltage electrostatic field coulomb force; after reaching the anode, the charges carried by the anode are released, and dust (fog) particles are collected by the anode so as to remove most of acid fog, dust and liquid drops in the flue gas. The dust is collected to form a water film, and flows to a liquid accumulation tank at the lower part from the upper part by gravity or flushing, so that the dust is separated from the flue gas to be purified.
The existing electrostatic precipitator waste gas gets into the inhomogeneous air current of electrode room, causes the big place purification burden of electrode indoor air current great, and purifying effect reduces, and the place that the air current is little is although purifying efficiency is higher, but does not handle due waste gas volume, finally leads to holistic purifying efficiency to reduce.
Disclosure of utility model
The utility model provides a wet electrostatic precipitator, which aims to solve the problems that the existing electrostatic precipitator has uneven airflow of waste gas entering an electrode chamber, so that the purification burden is large at the place with large airflow, the purification effect is reduced, the purification efficiency is high at the place with small airflow, but the due waste gas amount is not treated, and finally the whole purification efficiency is reduced.
The technical scheme of the utility model is as follows:
the wet electrostatic precipitator comprises an exhaust gas chamber, an electrode chamber and a gas purifying chamber, wherein the exhaust gas chamber is provided with an exhaust gas inlet, the exhaust gas inlet is provided with a concentric reducer pipe, the gas inlet end of the concentric reducer pipe is provided with a porous plate, the junction of the exhaust gas chamber and the electrode chamber is provided with a flow equalizing device, and the porous plate, the concentric reducer pipe and the flow equalizing device are matched to enable exhaust gas to uniformly enter the electrode chamber.
According to the utility model of the scheme, the concentric reducer comprises a straight pipe and a reducer, the included angle between the straight pipe and the reducer is smaller than 30 degrees, and the pipe diameter of the reducer is larger than that of the 4-time straight pipe.
According to the utility model of the scheme, the flow equalization device is a gas distribution plate, the thickness of the gas distribution plate is 30mm, the diameter of an opening of the gas distribution plate is 50mm, and the aperture ratio of the gas distribution plate is 25% -30%.
Further, the electrode chamber is provided with an anode tube bundle and a cathode system, and the waste gas enters the gas purifying chamber after being purified in the electrode chamber and is discharged.
According to the utility model of the above aspect, the anode tube bundle is fixed on the inner wall of the electrode chamber;
the cathode system includes a cathode corona wire, a cathode wire, and a cathode wire fixing frame, the corona wire and the cathode wire being suspended in the electrode chamber by the cathode wire fixing frame.
Further, a heavy hammer pendant is arranged at the bottom of the cathode line.
Further, the cathode line is a barbed wire, and the cathode line is 316L.
According to the scheme, the utility model further comprises a spraying system, wherein the spraying system comprises a spraying device, a circulating water pump, a circulating water tank, a raw water supply pipeline and a filtering device, the spraying device is arranged in the clean air chamber, the circulating water pump and the raw water supply pipeline are connected with the spraying device, the filtering device is connected with the waste air chamber and the circulating water tank, and the circulating water tank is connected with the circulating water pump.
Further, the cathode wire fixing frame further comprises an insulation box, wherein the lower part of the insulation box is used for fixing the cathode wire fixing frame.
According to the utility model of the scheme, the insulation box comprises the porcelain bushing and the rain hat, and the porcelain bushing is connected with the rain hat in a sealing mode.
According to the utility model of the scheme, the electric heating air system is arranged in the insulation box and is used for preventing fog from entering the overhaul space.
Further, the gas distribution plate is a glass fiber reinforced plastic grid.
According to the scheme, the waste gas enters through the porous plate, the waste gas is uniformly distributed for the first time, the speed and the pressure of the waste gas are adjusted in the concentric reducer pipe, the waste gas is uniformly distributed for the second time when entering into the electrode chamber through the flow equalization device, and the waste gas can uniformly and stably enter into the electrode chamber after sequentially passing through the porous plate, the concentric reducer pipe and the flow equalization device, so that the burden of the waste gas at each position in the electrode chamber is consistent, the purification efficiency is consistent, and the overall waste gas purification efficiency is high and the quality is good.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view showing a cleaning state of the present utility model;
FIG. 3 is a schematic view of the structure of the porous plate of the present utility model.
In the drawings, the respective reference numerals are as follows:
1. An exhaust chamber; 10. a concentric reducer pipe; 101. a straight pipe; 102. a reducer pipe; 11. a porous plate; 12. a gas distribution plate;
2. an electrode chamber; 21. an anode tube bundle; 22. a cathode line;
3. A gas purifying chamber; 31. a cathode line fixing frame; 33. a clean air chamber outlet;
4. An insulation box; 41. an insulator; 42. a porcelain sleeve; 43. a rain cap;
5. a heavy hammer suspending drop;
6. and a spraying device.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments.
It should be noted that the terms "comprising" and "having" and any variations thereof in the description and claims of the present utility model are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus. The term "disposed" and like terms are to be broadly interpreted, and may be fixedly connected, detachably connected, or integrally formed, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "bottom", etc. are directions or positions based on those shown in the drawings, and are merely for convenience of description, and are not to be construed as limiting the present technical solution.
As shown in fig. 1-3, a wet electrostatic precipitator comprises an exhaust gas chamber 1, an electrode chamber 2 and a gas purifying chamber 3, wherein a plurality of flow equalizers are arranged between the exhaust gas chamber 1 and the electrode chamber 2, and exhaust gas can uniformly enter the electrode chamber 2.
Specifically, the exhaust gas chamber 1 is provided with an exhaust gas inlet, the exhaust gas inlet is provided with a concentric reducer pipe 10, the gas inlet end of the concentric reducer pipe 10 is provided with a porous plate 11, the porous plate 11 is in sealing fit with the inner wall of the concentric reducer pipe 10, a flow equalizing device is arranged at the joint of the exhaust gas chamber 1 and the electrode chamber 2, one end of the flow equalizing device is attached to the inner wall of the exhaust gas chamber 1, the other end of the flow equalizing device protrudes out of the exhaust gas chamber 1 and is attached to the electrode chamber 2, and the porous plate 11, the concentric reducer pipe 10 and the flow equalizing device are matched to enable exhaust gas to uniformly enter the electrode chamber 2; first, the design of the exhaust gas inlet and the concentric reducer 10 allows for an even distribution of the exhaust gas from the exhaust chamber 1 before entering the exhaust chamber 1. The exhaust gas inlet is provided with the perforated plate 11, which can reduce disturbance of exhaust gas when the exhaust gas enters the electrode chamber 2, prevent the exhaust gas from forming vortex in the electrode chamber 2, and the concentric reducer pipe 10 can adjust the speed and pressure of the exhaust gas from the outside by adjusting the change of pipe diameter, thereby making the exhaust gas more uniformly ready to enter the electrode chamber 2. The flow equalizer allows the exhaust gas to pass uniformly, avoiding the formation of eddy currents or turbulence in the electrode chamber 2. Meanwhile, the flow equalization device can effectively reduce the flow resistance of the waste gas, so that the waste gas can enter the electrode chamber 2 more smoothly.
The waste gas enters through the porous plate 11, the waste gas is uniformly distributed for the first time, the speed and the pressure of the waste gas are regulated in the concentric reducer pipe 10, the waste gas is uniformly distributed for the second time when entering into the electrode chamber 2 through the flow equalization device, and the waste gas can uniformly and stably enter into the electrode chamber 2 after sequentially passing through the porous plate 11, the concentric reducer pipe 10 and the flow equalization device, so that the burden of the waste gas at all positions in the electrode chamber 2 is consistent, the purification efficiency is consistent, and the overall waste gas purification efficiency is high and the quality is good.
In the second embodiment, the electrostatic precipitator should be provided with a reasonable flow equalizer, generally a porous plate 11 with a certain density, and the ratio of the holes is too high to be beneficial to uniform wind, and too low to increase the resistance of the device. The concentric reducer 10 generally requires that the included angle between the reducer 102 and the straight pipe 101 be well controlled within 30 degrees during installation, in order to ensure the smoothness of the pipeline and reduce the fluid resistance, and maintain the straight pipe 101 with a pipe diameter greater than 4 times after reducing, i.e. the pipe diameter of the reducer 102 is greater than that of the straight pipe 101 with a pipe diameter greater than 4 times, so as to ensure the stability of the fluid.
In the third embodiment, the concentric reducer 10 includes a straight pipe 101 and a reducer 102, the included angle between the straight pipe 101 and the reducer 102 is smaller than 30 °, and the larger pipe diameter of the reducer 102 is larger than 4 times the pipe diameter of the straight pipe 101. The flow equalization device is a gas distribution plate 12, the gas distribution plate 12 adopts a glass fiber reinforced plastic grid, the material has higher strength and corrosion resistance, can work stably for a long time, the thickness of the gas distribution plate 12 is 30mm, the diameter of an opening of the gas distribution plate 12 is 50mm, the required distribution rate is more than or equal to 95%, so that the gas can be uniformly distributed in the whole device, the opening rate of the gas distribution plate 12 is 25% -30%, enough circulation space can be provided, resistance is reduced, and the gas distribution is more uniform. The purpose of setting is to guarantee that gas can obtain good distribution when getting into even wind device to realize the high-efficient operation of device.
In this embodiment, the electrode chamber 2 is provided with an anode tube bundle 21 and a cathode system, and the exhaust gas enters the gas-purifying chamber 3 after the electrode chamber 2 is purified and is discharged from the outlet of the gas-purifying chamber 3. The anode tube bundle 21 is fixed on the inner wall of the electrode chamber 2, and the anode tube bundle 21 is formed by inscribed circlesThe regular hexagonal anode tube 21 is made of flame-retardant glass fiber reinforced plastic, and has good integrity and high strength. The diameter of the anode tube 21 is basically phi 35mm or 36mm, and the main material is 2205/2507 stainless steel. The anode tube 21 is in a honeycomb tube arrangement, is hexagonal, and has good corrosion resistance and electrical conductivity.
The cathode system comprises a cathode corona wire, a cathode wire 22 and a cathode wire 22 fixation frame, the corona wire and the cathode wire 22 being suspended in the electrode chamber 2 by the cathode wire 22 fixation frame. The bottom of the cathode line 22 is provided with a weight pendant 5. The cathode line 22 is a barbed wire, and the cathode line 22 is 316L.
The utility model also comprises a spraying system, wherein the spraying system comprises a spraying device 6, a circulating water pump, a circulating water tank, a raw water supply pipeline and a filtering device, the spraying device 6 is arranged in the clean air chamber 3, the circulating water pump and the raw water supply pipeline are both connected with the spraying device 6, and the spraying water contains circulating water and raw water replenishing water, so that the purpose of the arrangement is that the raw water can be replenished when the circulating water is too little; the filtering device is connected with the waste gas chamber 1 and the circulating water tank, and the circulating water tank is connected with the circulating water pump.
During use of the wet electrostatic precipitator, dust deposited on the wall of the anode cylinder can be rinsed by spraying water in the spraying device 6 over time. Under the action of gravity, the dust and the spray water fall down together and fall to the exhaust gas chamber 1 at the bottom. The waste gas chamber 1 is connected with a filtering device, so that dust-containing sewage can be directly filtered and enter a circulating water tank, and then a circulating water pump is sucked into a spraying device 6 for circulation.
The wet electrostatic precipitator power supply area is at the top of tower body, is furnished with independent insulation case 4, and there is an insulation case 4 of taking the lead wire, and the fixed negative pole line 22 fixed frame of lower part. The insulation box 4 adopts a large-caliber porcelain bushing 42 and a special sealing material insulation box 4 rain cap 43 and the cylinder adopts aluminum silicate fiber for internal heat preservation, so that the insulation of the box body is more reliable and the electricity is saved.
Since the wet electrostatic precipitator is operated at positive pressure, dew condensation and pollution of the insulator 41 are prevented. An electric heating air system is arranged in the insulation box 4, so that the insulation of the insulator 41 is ensured to be more reliable. The heating device and the temperature automatic control device are arranged in the insulating box 4, so that the heating is uniform, the temperature detection is accurate, mist can be effectively prevented from entering the insulating box 4, moisture condensation is prevented, and a certain overhaul space is provided.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the implementation of the utility model is not limited by the above manner, and it is within the scope of the utility model to apply the inventive concept and technical solution to other situations as long as various improvements made by the inventive concept and technical solution are adopted, or without any improvement.
Claims (10)
1. The wet electrostatic precipitator comprises an exhaust gas chamber, an electrode chamber and a gas purifying chamber, and is characterized in that the exhaust gas chamber is provided with an exhaust gas inlet, the exhaust gas inlet is provided with a concentric reducer pipe, the gas inlet end of the concentric reducer pipe is provided with a porous plate, the joint of the exhaust gas chamber and the electrode chamber is provided with a flow equalizing device, and the porous plate, the concentric reducer pipe and the flow equalizing device are matched to enable exhaust gas to uniformly enter the electrode chamber.
2. A wet electrostatic precipitator according to claim 1, in which the concentric reducer comprises a straight tube and a reducer, the angle between the straight tube and the reducer being less than 30 °, the diameter of the reducer being greater than 4 times the diameter of the straight tube.
3. A wet electrostatic precipitator according to claim 1 or 2, in which the flow equalizer is a gas distribution plate having a thickness of 30mm, the gas distribution plate has an aperture diameter of 50mm and an aperture ratio of 25% -30%.
4. A wet electrostatic precipitator according to claim 1, in which the electrode compartment is provided with an anode tube bundle and a cathode system, and exhaust gas is discharged after the electrode compartment has been cleaned and entering the clean gas compartment.
5. A wet electrostatic precipitator according to claim 4, wherein said anode tube bundles are fixed to the inner wall of said electrode compartment;
The cathode system includes a cathode corona wire, a cathode wire, and a cathode wire fixing frame, the cathode corona wire and the cathode wire being suspended in the electrode chamber by the cathode wire fixing frame.
6. The wet electrostatic precipitator according to claim 1, further comprising a spray system comprising a spray device, a circulating water pump, a circulating water tank, a raw water supply pipe, and a filter device, wherein the spray device is disposed in the clean air chamber, the circulating water pump and the raw water supply pipe are both connected to the spray device, the filter device is connected to the exhaust air chamber and the circulating water tank, and the circulating water tank is connected to the circulating water pump.
7. A wet electrostatic precipitator according to claim 5, further comprising an insulation box, the lower portion of said insulation box securing said cathode-ray fixation frame.
8. A wet electrostatic precipitator according to claim 7, wherein said insulating casing comprises a porcelain bushing and a rain cap, said porcelain bushing and said rain cap being sealingly connected.
9. A wet electrostatic precipitator according to claim 8, in which an electrically heated air system is provided in the insulation box for preventing mist from entering the service space.
10. A wet electrostatic precipitator according to claim 3, in which the gas distribution plate is a glass fibre reinforced plastics grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322750312.1U CN221063099U (en) | 2023-10-12 | 2023-10-12 | Wet electrostatic precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322750312.1U CN221063099U (en) | 2023-10-12 | 2023-10-12 | Wet electrostatic precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221063099U true CN221063099U (en) | 2024-06-04 |
Family
ID=91264052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322750312.1U Active CN221063099U (en) | 2023-10-12 | 2023-10-12 | Wet electrostatic precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221063099U (en) |
-
2023
- 2023-10-12 CN CN202322750312.1U patent/CN221063099U/en active Active
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