CN212916132U - Spiral electrode wire structure of electric dust collector - Google Patents

Abstract

The utility model provides an electrostatic precipitator's helical electrode line structure belongs to waste gas treatment technical field, and during the pipe fitting was worn to locate by the electrode line, the electrode line was flat sheetmetal, and this sheetmetal both sides limit has the most advanced of a plurality of intervals settings to be used for discharging, and this sheetmetal is the heliciform and distributes, makes most advanced evenly distributed in around the sheetmetal, this sheetmetal center with the coincidence of pipe fitting center. The tips on the metal sheet are uniformly distributed. The utility model discloses an electrode line's pointed end evenly distributed is around the sheetmetal for the corona is three-dimensional even in the body, makes the dust that passes through can take the electric charge to the maximum extent, reduces the dust escape; the electrode wire is flat spiral slice for the air current through in the body is spiral helicine turbulent flow, has increased the lotus electric contact efficiency, and the air current strikes the inner wall of body, thereby increases the probability that the dust is adsorbed, reduces the escape rate.

Description

Spiral electrode wire structure of electric dust collector

Technical Field

The utility model relates to the technical field of waste gas treatment, in particular to a spiral electrode wire structure of an electric dust remover.

Background

The electric dust collector is the necessary corollary equipment of thermal power factory, its function is to clear away the granule smoke and dust in the kitchen of firing or the oil fired boiler exhaust flue gas to reduce the smoke and dust volume of discharging into the atmosphere by a wide margin, this is the improvement environmental pollution, improve the important environmental protection equipment of air quality, the electric dust collector divide into wet-type electric dust collector and with dry-type electric dust collector, wet-type electric dust collector with dry-type electric dust collector's the principle of gathering dust the same, all rely on high-pressure corona to discharge and make the dust charge, the dust after the electric charge reaches the collecting plate/pipe under the effect of electric field force. Dry electric dust collectors mainly treat dry gases with very low water content, wet electric dust collectors mainly treat wet gases with high water content or even saturated. WESP and DESP are different greatly in the dust removal mode captured on the dust collecting plate/pipe, dry-type electric dust collectors generally adopt the mode of mechanical rapping or sound wave deashing to remove the deposited dust on the electrode, while wet-type electric dust collectors adopt the mode of regularly flushing to remove the dust along with the flow of the scouring liquid.

The conventional electrode wire has the structure of a tubular prickle wire, a sawtooth wire, an angle iron prickle wire, a spiral wire, a star-shaped wire and the like; the problems and the disadvantages of the existing prickle are as follows: the gas with dust is in a linear track in the pipe fitting, the retention time is short, the charge contact efficiency is low, and a lot of dust is not charged; the unreasonable structure of the discharge tip causes uneven corona distribution and low charge contact efficiency when the prickle discharges at the tip, so that the escape rate of particulate matters is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a spiral electrode wire structure of an electric dust collector, the tips of the electrode wires are evenly distributed around the metal sheet, so that the corona in the pipe body is three-dimensional and even, the passing dust can be charged to the maximum extent, and the dust escape is reduced; the electrode wire is flat spiral slice for the air current through in the body is spiral helicine turbulent flow, has increased the lotus electric contact efficiency, and the air current strikes the inner wall of body, thereby increases the probability that the dust is adsorbed, reduces the escape rate.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides an electrostatic precipitator's spiral electrode line structure, this electrode line wear to locate in the pipe fitting, its characterized in that: the electrode wire is a flat metal sheet, a plurality of tips arranged at intervals are arranged on two side edges of the metal sheet and used for discharging, and the metal sheet is distributed spirally, so that the tips are uniformly distributed around the metal sheet, and the center of the metal sheet is coincided with the center of the pipe fitting.

Preferably, the tips on the metal sheet are evenly distributed.

Preferably, the metal sheet has no sharp corners towards the inside to prevent the metal sheet from tearing apart.

The utility model discloses beneficial effect:

1. the tips of the electrode wires are uniformly distributed around the metal sheet, so that the corona in the tube body is three-dimensionally and uniformly, the passing dust can carry charges to the maximum extent, and the dust escape is reduced;

2. the electrode wire is flat spiral slice for the air current through in the body is spiral helicine turbulent flow, has increased the lotus electric contact efficiency, and the air current strikes the inner wall of body, thereby increases the probability that the dust is adsorbed, reduces the escape rate.

Drawings

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is a perspective view of the present embodiment from another perspective;

fig. 3 is a perspective view of the duster main unit 10;

fig. 4 is a front view of the dust catcher main body unit 10;

FIG. 5 is a cross-sectional view taken along plane D-D of FIG. 4;

fig. 6 is an exploded schematic view of the duster main unit 10;

fig. 7 is a front view of the duster body 12;

FIG. 8 is a top view of the duster body 12;

fig. 9 is an installation perspective view of the electrode wire 129;

fig. 10 is an installation front view of the electrode wire 129;

fig. 11 is an installation perspective view of one of the electrode wires 129;

FIG. 12 is an enlarged view at B of FIG. 11;

fig. 13 is a perspective view of the end of the electrode wire 129;

FIG. 14 is an exploded schematic view of FIG. 13;

fig. 15 is a perspective view of the mounting portion 12 d;

fig. 16 is a perspective view of the tube 122 mated with the electrode wire 129;

fig. 17 is a schematic view of the structure of the tube 122 cooperating with the electrode wire 129.

Detailed Description

The technical solution of the present invention will be described below with reference to the accompanying drawings and examples.

As shown in fig. 1 to 17, the wet electric dust collector described in this embodiment includes a dust collector main body 1 and a water tank 2, the dust collector main body 1 is composed of a plurality of dust collector main body units 10, each of the dust collector main body units 10 is arranged in parallel, each of the dust collector main body units 10 can work alone, each of the dust collector main body units 10 includes a water collecting tank 11, a dust collector body 12 and an air outlet cover 13, which are arranged from bottom to top, the top of the water collecting tank 11 is tightly connected with the bottom of the dust collector body 12 through bolts, the bottom of the air outlet cover 13 is tightly connected with the top of the dust collector body 12 through bolts, an air inlet 14 is arranged at the side of the water collecting tank 11, the air outlet cover 13 is in an inverted bucket shape, the air inlets 14 are connected into a whole, the air outlet cover 13 is connected with a negative pressure fan, the air inlet 14 is connected with a gas carrying dust to be, the air with dust enters the water collecting tank 11 from the air inlet 14, enters the dust remover body 12 for dust removal, and is sent out from the air outlet cover 13. The integral structure of the main body unit 10 of the dust collector is divided into three parts, namely a water collecting tank 11, a dust collector body 12 and an air outlet cover 13, the total height of the three parts combined together is 5-6m, the transportation is inconvenient, and after the dust collector body is disassembled, the height of the highest dust collector body 12 is 3.2m, so that the transportation is convenient.

The dust remover body 12 comprises a box body 121, a plurality of pipe bodies 122 are arranged on the box body 121 in a vertically penetrating manner, a top plate 123 is arranged on the top of the box body 121, a bottom plate 124 is arranged on the bottom of the box body, the pipe bodies 122 vertically penetrate through the bottom plate 124 and the top plate 123, the box body 121 is sealed by the top plate 123 and the bottom plate 124, a plurality of sealed insulator mounting boxes 125 are arranged on the upper portion and the lower portion of the box body 121, an insulator 126 is arranged in each insulator mounting box 125, an upper electrode mounting plate 127 is arranged above the box body 121, a lower electrode mounting plate 128 is arranged below the box body 121, the upper electrode mounting plate 127 and the lower electrode mounting plate 128 are in a hollow structure, a mounting rod penetrating out of the insulator mounting box 125 is connected to the top of the insulator 126 positioned above, a mounting rod penetrating out, the upper electrode mounting plate 127 is mounted above the box body 121 through a mounting rod positioned above, the lower electrode mounting plate 128 is mounted below the box body 121 through a mounting rod positioned below, a plurality of electrode wires 129 are uniformly mounted between the upper electrode mounting plate 127 and the lower electrode mounting plate 128, each electrode wire 129 correspondingly penetrates through the middle part of the tube body 122 and does not contact with the inner wall of the tube body 122, the electrode wires 129 are connected with a power cathode, the tube body 122 is grounded, the upper part of the insulator mounting box 125 positioned above is communicated with the air outlet cover 13, the lower part of the insulator mounting box 125 positioned below is communicated with the outside air, the lower part of the insulator mounting box 125 positioned below is communicated with the air inlet 14, the upper part of the insulator mounting box 125 is communicated with the outside air, here, in order to make the structure beautiful, the insulator mounting boxes 125 positioned above and the insulator mounting boxes, the air inlet 1210 is disposed in the box 121, because the air outlet housing 13 is connected to the negative pressure fan, and the outlet of the negative pressure fan is connected to the outside, so the air pressure at the air inlet 14 and the air outlet housing 13 is less than the air pressure at the outside, so the air enters from the air inlet 1210, passes through the insulator mounting box 125, and then goes to the air inlet 14 or the air outlet housing 13, that is, the air pressure in the insulator mounting box 125 is greater than the air pressure in the air inlet 14, and the air pressure in the insulator mounting box 125 is greater than the air pressure in the air outlet housing 13, so the dust at the air inlet 14 or the air outlet housing 13 cannot enter the insulator mounting box 125, and the phenomena of creepage, discharge, temperature rise, burst and the like after the insulator 126 is. In addition, in order to further ensure that air entering insulator mounting case 125 does not carry dust, a filtering device is provided at air inlet 1210 to filter air entering insulator mounting case 125.

It is specific, electrode wire 129 is the bur sheet structure of spiral, adopt a flat sheetmetal promptly, its both sides limit has most advanced 129a that a plurality of intervals set up and is used for discharging, twist a plurality of angles with the sheetmetal again, make the monoblock sheetmetal be the heliciform, the gas of taking the dust through body 122 is after electrode wire 129 like this, can produce rotatory turbulent flow, and electrode wire 129's most advanced 129a is three-dimensional distribution, make the corona more even, make the gas in the body 122 can be carried the electric charge by the at utmost, and gas is the turbulent flow that is the spiral, therefore the dust can strike the body 122 inner wall of ground connection, finally adsorbed by body 122 inner wall, the adsorption efficiency of dust has been improved greatly, present dust adsorption efficiency is greater than 90%, the adsorption efficiency of preceding equipment is less than 75%, its dust adsorption efficiency promotes greatly. In addition, the absence of an inwardly directed sharp corner of the sheet prevents the sheet from being torn open, as the electrode wire 129 is a flat sheet of metal that, if present, would be susceptible to tearing by shear forces.

Specifically, in order to ensure that the distance between the electrode wire 129 and the inner wall of the tube 122 is consistent and the electric field consistency is ensured, the position installation accuracy of the electrode wire 129 needs to be ensured. This reduces installation errors relative to conventional welding methods, resulting in more accurate positioning of the electrode wire 129.

In order to facilitate the installation of the electrode wire 129, the upper electrode mounting plate 127 and the lower electrode mounting plate 128 are provided with the same flower-shaped hole 12a, the outer edge of the flower-shaped hole 12a is provided with a wider through groove 12b and a narrower limiting groove 12c, two ends of the electrode wire 129 are respectively provided with an installation part 12d in an elastic manner, the installation part 12d comprises a clamping part 12e, a limiting part 12f and a neck part 12g, the clamping part 12e is wider than the limiting part 12f, the limiting part 12f is wider than the neck part 12g, the clamping part 12e is positioned at the tail end of the installation part 12d, the limiting part 12f is positioned at the tail end of the installation part 12d, and finally the neck part 12g, the clamping part 12e can penetrate through the through groove 12b but cannot penetrate through the limiting groove 12c, the limiting part 12f can penetrate through the limiting groove 12c, the width of the neck part 12g is smaller than the aperture of the flower-shaped hole, and pulling the clamping portion 12e continuously until the neck portion 12g is aligned with the flower-shaped hole 12a, rotating the mounting portion 12d to align the limiting portion 12f with the limiting groove 12c, and releasing the mounting portion 12d slowly to clamp the limiting portion 12f into the limiting groove 12c, so that the clamping portion 12e is pressed against the upper electrode mounting plate 127 or the lower electrode mounting plate 128.

Above embodiment can let adopt spring coupling between installation department 12d and the electrode line 129, and the spring can electrically conduct, and is further, in order to ensure that electrode line 129 and last electrode mounting panel 127 or with keep good electric connection between the lower electrode mounting panel 128, electrode line 129 end and installation department 12d end all is equipped with word groove 12h and jump ring portion 12i, and electrode line 129 and installation department 12d are through two word groove 12h joint for electrode line 129 is the sliding connection of cross with installation department 12d, and the card is equipped with the spring between two jump ring portions 12i, and when installation department 12d kept away from electrode line 129, the spring was compressed, installs 129 electrode line when going up between electrode mounting panel 127 and the lower electrode mounting panel 128, the spring was in the compressed state. Thus, the mounting portions 12d at both ends of the electrode wire 129 firmly mount the electrode wire 129 between the upper electrode mounting plate 127 and the lower electrode mounting plate 128. In addition, when the installation part 12d is installed, in order to facilitate pulling the installation part 12d, a pulling hole 12j is further formed in the installation part 12d, and when the installation is carried out, after the pulling hole 12j in the installation part 12d penetrates through the through groove 12b, a bolt knife can be used for pulling through the pulling hole 12 j. In addition, the position of the limiting part 12f close to the neck part 12g is provided with two inclined edges 12k, so that the two inclined edges 12k are convenient to insert into the limiting groove 12c, and the inclined edges 12k play a role in guiding. Here, the elastic connection between the mounting portion 12d and the electrode wire 129 is realized by a compression spring, so that the electrode wire 129 is prevented from loosening due to the failure of the spring.

Specifically, a circulating water pump 21 is arranged beside the water tank 2, a water inlet of the circulating water pump 21 is respectively connected with the water collecting tank 11 and the water tank 2, a water outlet of the circulating water pump 21 is respectively connected with the water tank 2 and the inside of the tank body 121, when the water inlet of the circulating water pump 21 is communicated with the water tank 2 and the water outlet of the circulating water pump is communicated with the tank body 121, a flushing loop is formed, and a plurality of first valves 22 for switching on and off the flushing loop are arranged on the flushing loop; when the water inlet of the circulating water pump 21 is communicated with the water collecting tank 11 and the water outlet thereof is communicated with the water tank 2, an ash water circulating loop is formed, and a plurality of second valves 23 are arranged on the ash water circulating loop and used for switching on and off the ash water circulating loop; specifically, a first pipeline 25 is communicated between the water collection tank 11 and the water inlet of the water circulating pump 21, a second pipeline 26 is connected between the water tank 2 and the water inlet of the water circulating pump 21, a third pipeline 27 is connected between the water outlet of the water circulating pump 21 and the water tank 2, and a fourth pipeline 28 is connected between the water outlet of the water circulating pump 21 and the tank body 121. The first valves 22 are disposed on the second pipeline 26 and the fourth pipeline 28, the second valves 23 are disposed on the third pipeline 27, when the flushing loop is used, all the first valves 22 are opened, all the second valves 23 are closed, the water in the water tank 2 enters the tank body 121 through the circulating water pump 21, and then flows out through the tapered hole 32, the dust on the electrode wire 129 and the inner wall of the pipe body 122 is cleaned, the cleaned grey water flows into the water collecting tank 11, and the grey water in the water collecting tank 11 flows back to the circulating water pump 21. When used as a greywater recirculation loop, all first valves 22 are closed, all second valves 23 are opened and the water from the water collection tank 11 flows via the recirculation pump 21 to the water tank 2. The second conduit 26 communicates with the middle of the tank 2 so that it does not draw in too much dust deposited on the bottom of the tank 2 for the flushing operation. 2 upper portions of water tank are equipped with dross discharge pipe 29, and 2 lower parts of water tank are equipped with blow off pipe 30, blow off pipe 30 department is equipped with the break-make of third valve 24 blow off pipe 30, water tank 2 still is equipped with inlet tube 31 and supplies water to 2 of water tank, and when the dross operation of need carrying out the scum discharge, the water level of the water of inlet tube 31 drainage is higher than dross discharge pipe 29, and the dross on the surface of water will be discharged outside water tank 2.

Specifically, the box 121 is a closed structure, a pipeline of the flushing circuit is communicated to the inside of the box 121, wherein a plurality of tapered holes 32 are formed in the side wall of the pipe 122, and the opening angle of the tapered holes 32 faces the inner side of the pipe 122. In addition, in order to wash out dust more easily, a heating device is provided in the water tank 2 for heating water in the water tank 2, and hot water is used to wash out dust. The running water supplies water to the water tank 2 through the water inlet pipe, when the water level of the water tank 2 reaches a preset position, the running water stops supplying water, the heating device is started, and when the water in the water tank 2 is heated to a certain temperature, the water is used as a flushing loop. After the dust is washed, the circulating water pump 21 pumps the grey water in the water collecting tank 11 into the water tank 2, the grey water is pumped into the water tank 2 and then stands still in the water tank 2 for more than 20 hours, when the machine is started next time, the third valve 24 is opened, the sewage after standing is discharged, and the next cycle of cleaning process is continued. A conductive glass steel positive pole pipe that is used for wet-type electrostatic precipitator before is mostly the regular hexagon specification, 360mm of intraductal tangent circle diameter, just so can guarantee the distance between positive pole pipe and the electrode line 129, and can wash cleanly in order to guarantee, the pipe diameter of positive pole pipe is great, electrode line 129 is more dredged, in order to ensure the dust removal rate, the pipe length reaches 6 meters, the voltage that uses is 72KV, and the utility model discloses a mode that body 122 lateral wall trompil washed, the last electrode mounting panel 127 that is used for installing electrode line 129 is higher with bottom electrode mounting panel 128's precision moreover, the internal diameter of pipe fitting only needs 127mm, electrode line 129 is denser, the voltage of adoption only needs 40KV, just can ensure its dust collection efficiency.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (3)

1. The utility model provides an electrostatic precipitator's spiral electrode line structure, this electrode line wear to locate in the pipe fitting, its characterized in that: the electrode wire is a flat metal sheet, a plurality of tips arranged at intervals are arranged on two side edges of the metal sheet and used for discharging, and the metal sheet is distributed spirally, so that the tips are uniformly distributed around the metal sheet, and the center of the metal sheet is coincided with the center of the pipe fitting.

2. The helical electrode wire structure of an electric dust collector as claimed in claim 1, wherein: the tips on the metal sheet are uniformly distributed.

3. The helical electrode wire structure of an electric dust collector as claimed in claim 1, wherein: the sheet metal has no sharp corners towards the inside to prevent the sheet metal from tearing open.

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