CN220969473U - Low-failure-rate electrical tar precipitator - Google Patents
Low-failure-rate electrical tar precipitator Download PDFInfo
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- CN220969473U CN220969473U CN202321981858.1U CN202321981858U CN220969473U CN 220969473 U CN220969473 U CN 220969473U CN 202321981858 U CN202321981858 U CN 202321981858U CN 220969473 U CN220969473 U CN 220969473U
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- honeycomb
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- conductive
- hanging bracket
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- 239000012716 precipitator Substances 0.000 title claims abstract description 22
- 238000001556 precipitation Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 229910052573 porcelain Inorganic materials 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 9
- 239000013049 sediment Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims 2
- 230000008569 process Effects 0.000 abstract description 5
- 150000002500 ions Chemical class 0.000 description 8
- 230000005684 electric field Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 239000003034 coal gas Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Electrostatic Separation (AREA)
Abstract
The utility model relates to an electric tar precipitator, in particular to a low-failure-rate electric tar precipitator, which comprises a barrel shell, wherein a plurality of honeycomb pipes are axially arranged in the barrel shell, the honeycomb pipes form a precipitation electrode system, a plurality of honeycomb holes are formed in the cross sections of all the honeycomb pipes of the precipitation electrode system, and an upper hanging bracket and a lower hanging bracket are respectively arranged at the upper part and the lower part of the precipitation electrode system; four honeycomb tubes near the side of the precipitation electrode system are respectively internally provided with a conductive suspender in a penetrating way, the other honeycomb tubes are correspondingly internally provided with common corona wires in a penetrating way, the upper ends of all the conductive suspenders and the common corona wires are hung on the upper hanging bracket, and the lower ends of all the conductive suspenders and the common corona wires penetrate through the honeycomb tubes and are connected to the lower hanging bracket. The utility model increases the strength and rigidity of the bearing part, reduces the shaking degree of the hanging frame when the flow of the process medium fluctuates, reduces the probability of bearing hanging rod fracture and lower hanging frame inclination falling off, and can reduce the failure rate of the electric tar precipitator.
Description
Technical Field
The utility model relates to an electrical tar precipitator, in particular to a low-failure rate electrical tar precipitator.
Background
The electric tar precipitator is a common chemical equipment for the coal gas purification process of a coking plant, and mainly has the function of removing tar in coke oven gas so as to achieve the purpose of purifying the coal gas. The equipment faults can cause the reduction of gas flow and purification efficiency, the safety risk in the fault treatment process is more, and the fault rate of the equipment should be reduced as much as possible.
The electric tar precipitator is internally provided with a precipitation electrode system (suction and catching) and a corona electrode system (discharge), after high-voltage direct current is applied to the two electrodes, an uneven electric field is formed between the corona electrode and the precipitation electrode, gas near the corona electrode is ionized, positive ions, negative ions and electrons are filled inside and outside the corona region, coal gas carrying tar droplets flows through the electric field, and the tar droplets are combined with the positive ions, the negative ions and the electrons to form tar droplets with positive electricity and negative electricity. Under the action of an electric field, the fog drops with negative charges and positive charges respectively move to the precipitation electrode and the corona electrode, and the tar fog drops reaching the precipitation electrode and the corona electrode flow downwards under the action of gravity, are collected and then discharged out of the device, so that the tar fog drops are separated from the coal gas.
The electrical tar precipitator comprises a cylindrical casing 1, inside which a precipitation electrode system and a corona electrode system are arranged (as shown in figures 1 and 2). The honeycomb tubes 2 are axially arranged to form a precipitation electrode system, and the section of the precipitation electrode system is 196 regular hexagonal holes. 184 common corona wires 3 and 12 bearing corona wires 4 respectively penetrate through the middle parts of the corresponding honeycomb tubes 2, the upper ends of the corona wires are hung on the upper hanging frame 5, the lower ends of the corona wires penetrate through the honeycomb tubes 2 and are connected to the lower hanging frame 6, and the corona wires, the upper hanging frame 5 and the lower hanging frame 6 jointly form a corona electrode system.
The elevations of the upper hanger 5 and the lower hanger 6 of the electric tar precipitator are different by about 6m, the hanger 5 and the lower hanger 6 are connected by 12 phi 2mm bearing corona wires 4, and the 12 bearing corona wires 4 bear the weight of the whole lower hanger. The load-bearing corona wire 4 has the same specification as the other 184 common corona wires 3 hung on the upper hanging bracket 5 and the lower hanging bracket 6, and is made of a plurality of stainless steel wires. Under normal operation, corona wires are in corona discharge state through high direct current voltage (20 kV and above). The 12 load-bearing corona wires 4 connected with the lower hanger 6 are often in a dual load-bearing and discharge state, and the fault rate of the load-bearing corona wires is increased compared with other corona wires, and when the corona wires have mechanical damage marks or shake when the hanger is in contact with the corona wires, the load-bearing corona wires 4 are broken sometimes. Once the bearing corona wire 4 is broken, the lower hanging bracket 6 is greatly rocked, the distance between the corona wire and the honeycomb tube 2 is shortened, and breakdown flashover and failure of the electric tar precipitator are caused by insufficient electric clearance.
Disclosure of utility model
The utility model provides a low-failure-rate electric tar precipitator for solving the problem that a load-bearing corona wire is easy to break to cause the failure of the electric tar precipitator.
The utility model is realized by the following technical scheme: the utility model provides a low fault rate electric tar precipitator, includes the barrel shell, the inside axial arrangement of barrel shell is provided with a plurality of honeycomb pipes, the honeycomb pipe constitutes the sediment utmost point system, all honeycomb pipe cross sections of sediment utmost point system form a plurality of honeycomb holes, sediment utmost point system upper portion and lower part are provided with gallows and lower gallows respectively;
The four honeycomb tubes close to the side of the precipitation electrode system are internally provided with a conductive hanging rod in a penetrating way respectively, all the conductive hanging rods are axially and uniformly distributed in the precipitation electrode system, the other honeycomb tubes are correspondingly internally provided with common corona wires in a penetrating way, the upper ends of all the conductive hanging rods and the common corona wires are hung on an upper hanging bracket, the lower ends of all the conductive hanging rods and the common corona wires penetrate through the honeycomb tubes and are connected to a lower hanging bracket, and the common corona wires, the upper hanging bracket and the lower hanging bracket jointly form the corona electrode system.
As a further improvement of the technical scheme of the utility model, the upper hanging bracket is suspended and fixed on the hanging post, the top of the cylinder shell is provided with an insulation box, a porcelain sleeve is fixedly arranged in the insulation box, the top of the hanging post sequentially extends out of the cylinder shell and the porcelain sleeve and is matched with the top stop of the porcelain sleeve, and the hanging post is connected to a power supply through a high-voltage cable.
As a further improvement of the technical scheme of the utility model, a gas inlet is arranged on the cylinder shell positioned at the lower part of the precipitation electrode system, and a gas outlet is arranged on the cylinder shell positioned at the upper part of the precipitation electrode system.
As a further improvement of the technical scheme of the utility model, an annular guide plate is arranged in the shell of the cylinder body positioned at the lower part of the gas inlet, the outer edge of the annular guide plate is higher than the inner edge, the outer edge of the annular guide plate is fixedly matched with the inner wall of the shell of the cylinder body, and a tar collecting port is arranged at the inner edge of the annular guide plate.
As a further improvement of the technical scheme of the utility model, a blocking cover with a downward cover opening is arranged on the hanging column between the top of the shell of the cylinder body and the upper hanging bracket.
Compared with the prior art, the low-failure-rate electrical tar precipitator provided by the utility model has the following advantages: the utility model replaces the traditional bearing corona wire with the common non-bearing corona wire, in addition, the four honeycomb pipes near the side of the precipitation electrode system are respectively penetrated with a conductive suspender, the upper end and the lower end of the conductive suspender are respectively connected with the upper suspender and the lower suspender, the strength and the rigidity of the bearing part are increased, the shaking degree of the suspender when the flow of the process medium fluctuates is reduced, the probability of the breakage of the bearing suspender and the inclined falling of the lower suspender is reduced, and the failure rate of the electric tar precipitator can be reduced. The method has obvious effect and lower cost, and is suitable for popularization.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of the internal structure of a conventional electrical tar precipitator.
Fig. 2 is a schematic view of the arrangement of the load-bearing corona wires (the side-by-side squares in the figure refer to honeycomb tubes).
Fig. 3 is a schematic diagram of the internal structure of the low failure rate electrical tar precipitator.
Fig. 4 is a schematic diagram of an arrangement of conductive booms (the side-by-side squares in the figure refer to honeycomb tubes).
In the figure: 1-cylinder shell, 2-honeycomb tube, 3-common corona wire, 4-bearing corona wire, 5-upper hanger, 6-lower hanger, 7-conductive hanger, 8-hanger column, 9-insulation box, 10-porcelain sleeve, 11-gas inlet, 12-gas outlet, 13-annular deflector, 14-tar collecting port, 15-barrier cover and 16-high voltage cable.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be made. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the utility model.
Specific embodiments of the present utility model are described in detail below.
As shown in fig. 3 and 4, the utility model provides a low-failure-rate electrical tar precipitator, which comprises a barrel shell 1, wherein a plurality of honeycomb tubes 2 are axially arranged in the barrel shell 1, the honeycomb tubes 2 form a precipitation electrode system, a plurality of honeycomb holes are formed in the cross sections of all the honeycomb tubes 2 of the precipitation electrode system, and an upper hanging bracket 5 and a lower hanging bracket 6 are respectively arranged at the upper part and the lower part of the precipitation electrode system;
The four honeycomb tubes 2 near the side of the precipitation electrode system are respectively internally provided with a conductive hanging rod 7 in a penetrating way, all the conductive hanging rods 7 are axially and uniformly distributed in the precipitation electrode system, the other honeycomb tubes 2 are correspondingly internally provided with ordinary corona wires 3 in a penetrating way, the upper ends of all the conductive hanging rods 7 and the ordinary corona wires 3 are hung on the upper hanging frame 5, the lower ends of all the conductive hanging rods 7 and the ordinary corona wires 3 penetrate through the honeycomb tubes 2 and are connected to the lower hanging frame 6, and the ordinary corona wires 3, the upper hanging frame 5 and the lower hanging frame 6 jointly form the corona electrode system.
By comparing fig. 2 and fig. 4, the conventional load-bearing corona wire 4 is replaced by a common corona wire 3 in this embodiment, then a conductive hanger rod 7 is respectively arranged in four honeycomb tubes 2 near the side of the precipitation electrode system, all the conductive hanger rods 7 are axially and uniformly distributed in the precipitation electrode system, and the common corona wire 3 is not arranged in the honeycomb tubes 2 through which the conductive hanger rods 7 are arranged. Preferably, all the conductive booms 7 are arranged symmetrically to each other. Specifically, the conductive boom 7 is made of round steel with a diameter not smaller than 20. The embodiment increases the strength and the rigidity of the bearing part, reduces the shaking degree of the hanging frame when the flow of the process medium fluctuates, reduces the probability of bearing hanging rod fracture and lower hanging frame inclination falling off, and can reduce the failure rate of the electric tar precipitator. The method has the advantages of remarkable effect, low cost and recommendation.
Preferably, in this embodiment, the connection between the conductive suspension rod 7 and the lower suspension frame 6 is connected by using a bolt and a nut, so that the balance of the lower suspension frame 6 is adjusted according to the actual situation, and the lower suspension frame 6 is rigidly fixed again.
As shown in fig. 3, this embodiment provides a connection mode between the corona electrode system and the power supply, that is, the upper hanging bracket 5 is suspended and fixed on the hanging post 8, an insulation box 9 is arranged at the top of the cylinder shell 1, a porcelain sleeve 10 is fixedly installed in the insulation box 9, the top of the hanging post 8 sequentially extends out of the cylinder shell 1, the porcelain sleeve 10 and is matched with the top of the porcelain sleeve 10 in a stop position, and the hanging post 8 is connected to the power supply through a high-voltage cable 16.
The embodiment also provides a flow path of the gas flow with tar mist drops, namely, a gas inlet 11 is arranged on the cylinder shell 1 positioned at the lower part of the precipitation electrode system, and a gas outlet 12 is arranged on the cylinder shell 1 positioned at the upper part of the precipitation electrode system. After the high-voltage direct current is applied to the two electrodes, an uneven electric field is formed between the corona electrode system and the precipitation electrode system, after gas flow with tar droplets enters from the gas inlet 11, gas near the corona electrode system is ionized, positive ions, negative ions and electrons are filled inside and outside a corona region, the gas with the tar droplets flows through the electric field, and the tar droplets, the positive ions, the negative ions and the electrons are combined into the tar droplets with positive electricity and negative electricity. Under the action of an electric field, the fog drops with negative charges and positive charges respectively move to the precipitation electrode system and the corona electrode system, and tar fog drops reaching the precipitation electrode system and the corona electrode system flow downwards under the action of gravity and are collected, so that the tar fog drops are separated from coal gas.
In order to facilitate the collection of tar mist drops under the action of gravity, an annular guide plate 13 is arranged in the cylinder shell 1 positioned at the lower part of the gas inlet 11, the outer edge of the annular guide plate 13 is higher than the inner edge, the outer edge of the annular guide plate 13 is fixedly matched with the inner wall of the cylinder shell 1, and a tar collecting port 14 is formed in the inner edge of the annular guide plate 13. The tar mist drops are guided by the annular guide plate 13, collected to the bottom of the cylinder body from the tar collecting port 14, and discharged out of the device. The bottom of the shell 1 of the cylinder is provided with a tar outlet, and a person skilled in the art can set a specific position of the tar outlet according to actual conditions, and drain the tar collected at the bottom to the outside of the cylinder through the tar outlet.
In order to avoid the situation that the porcelain sleeve 10 in the insulation box is repeatedly heated and alternately heated and cooled and heated during the blowing of the cylinder body, the quality and the insulation performance of the porcelain sleeve 10 are affected, and a blocking cover 15 with a downward cover opening is arranged on the hanging column 8 between the top of the cylinder body shell 1 and the upper hanging bracket 5. After the process medium (gas) and the purging medium (steam) enter the cylinder body from the gas inlet 11, the cover opening of the blocking cover 15 is downward to play a role in blocking, so that the medium is directly conveyed out from the gas outlet 12, and the service cycle of the porcelain sleeve 10 is prolonged.
The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Although described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and they should be construed as covering the scope of the appended claims.
Claims (1)
1. The utility model provides a low fault rate electric tar precipitator, includes barrel casing (1), the inside axial arrangement of barrel casing (1) is provided with a plurality of honeycomb pipes (2), honeycomb pipe (2) constitute the sediment utmost point system, all honeycomb pipe (2) cross section of sediment utmost point system form a plurality of honeycomb holes, sediment utmost point system upper portion and lower part are provided with gallows (5) and gallows (6) respectively; it is characterized in that the method comprises the steps of,
A conductive hanging rod (7) is respectively arranged in four honeycomb tubes (2) close to the side of the precipitation electrode system in a penetrating way, all the conductive hanging rods (7) are axially and uniformly distributed in the precipitation electrode system, common corona wires (3) are correspondingly arranged in other honeycomb tubes (2) in a penetrating way, the upper ends of all the conductive hanging rods (7) and the common corona wires (3) are hung on an upper hanging bracket (5), the lower ends of all the conductive hanging rods (7) and the common corona wires (3) penetrate through the honeycomb tubes (2) and are connected to a lower hanging bracket (6), and the common corona wires (3), the upper hanging bracket (5) and the lower hanging bracket (6) jointly form a corona electrode system; the upper hanging bracket (5) is suspended and fixed on a hanging post (8), an insulation box (9) is arranged at the top of the cylinder shell (1), a porcelain sleeve (10) is fixedly arranged in the insulation box (9), the top of the hanging post (8) sequentially extends out of the cylinder shell (1), the porcelain sleeve (10) and is matched with the top of the porcelain sleeve (10) in a stop position, and the hanging post (8) is connected to a power supply through a high-voltage cable (16); a gas inlet (11) is arranged on the cylinder shell (1) positioned at the lower part of the sedimentation pole system, and a gas outlet (12) is arranged on the cylinder shell (1) positioned at the upper part of the sedimentation pole system; an annular guide plate (13) is arranged in the cylinder shell (1) positioned at the lower part of the gas inlet (11), the outer edge of the annular guide plate (13) is higher than the inner edge, the outer edge of the annular guide plate (13) is fixedly matched with the inner wall of the cylinder shell (1), and a tar collecting opening (14) is formed in the inner edge of the annular guide plate (13); a blocking cover (15) with a downward cover opening is arranged on a hanging column (8) positioned between the top of the cylinder shell (1) and the upper hanging bracket (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321981858.1U CN220969473U (en) | 2023-07-26 | 2023-07-26 | Low-failure-rate electrical tar precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321981858.1U CN220969473U (en) | 2023-07-26 | 2023-07-26 | Low-failure-rate electrical tar precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220969473U true CN220969473U (en) | 2024-05-17 |
Family
ID=91055050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321981858.1U Active CN220969473U (en) | 2023-07-26 | 2023-07-26 | Low-failure-rate electrical tar precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220969473U (en) |
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2023
- 2023-07-26 CN CN202321981858.1U patent/CN220969473U/en active Active
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