An apparatus for preventing electrical trip by piano wire in an electrical dust collector

专利摘要:
PURPOSE: An apparatus for preventing a trip by a piano line in an electric dust precipitator is provided to prevent the short-circuiting of a piano line and check whether the trip of the electric dust precipitator occurs due to a breakdown caused by the short-circuiting of the piano line. CONSTITUTION: The apparatus comprises: a fixed portion(10) provided with a protrusion bar(15) at a fixed electrode supplying an anode(+) current, with a spring(22) and a discharge copper disc(20) inserted into the protrusion bar(15) and elastically supported to an upper side; a movable portion(30) provided at the upper end with a detachable copper disc(32), which is to be inserted into the protrusion bar(20) in a loosen state, with a piano line(36) connected to a lower side of the detachable copper disc(32) and a weight(40) mounted to the lower end of the piano line(36); and a collected electrode(115) having the piano line(36) located therein and formed in a honeycomb shape while having a cathode(-) current.
公开号:KR20040009493A
申请号:KR1020020043458
申请日:2002-07-24
公开日:2004-01-31
发明作者:김인학；유남수
申请人:주식회사 포스코；
IPC主号:

专利说明:

Trip prevention device by piano wire in electric dust collector {AN APPARATUS FOR PREVENTING ELECTRICAL TRIP BY PIANO WIRE IN AN ELECTRICAL DUST COLLECTOR}
[21] The present invention relates to a trip prevention device of an electrostatic precipitator that separates and collects tar present as particulates in sea cucumber gas, and more particularly, between a positive electrode piano line and a negative electrode dust collecting plate charged with a high voltage current to form a corona discharge. The piano wire is in contact with the tar collected as it passes, causing an arc, and even if the piano wire is short-circuited, a part of the shorted piano wire contacts the dust collector plate and prevents the entire electrostatic precipitator from tripping. It relates to a trip prevention device.
[22] In general, the electrostatic precipitator installed in the Mars facility is to remove tar in the gas, which is purified from the COKE OVEN GAS produced by the coke in the coke oven furnace in the Mars tar facility, The C.O.g.gas is cooled to a constant temperature to purify a large amount of tar-fine particles mixed in the gas.
[23] The electrostatic precipitator 100 has a plurality of collecting electrodes (HONEY-COMB) 115 made of a honeycomb, as shown in Figure 1 in order to remove the ta-lemiparticles contained in the Cuji gas. Each of the honeycomb collecting electrodes 115 has a structure in which piano wires 120 constituting the discharge electrodes are inserted.
[24] Therefore, when the electrostatic precipitator 100 applies a high voltage (DC 40,000 V) from the piano wire 120, at this time, a corona discharge generated between the collecting electrode 115 and the piano wire 120 which is a discharge electrode. By using the effect, the collecting electrode 115 is purified and collected by removing the tar-particles contained in the cinnamon gas to produce a good quality cage gas from which tar is removed.
[25] 680 piano wires 120 are installed in the electrostatic precipitator 100, and even if only one of them is shorted, the insulation is destroyed and the entire electrostatic precipitator 100 is tripped. The worker should enter the interior of the dust collector 100 to take out the shorted piano wire 120 to normalize the insulation state.
[26] That is, in the related art, the upper piano wire fixing plate 105 supporting the 680 piano wires 120 is electrically connected to the iron shell outside the dust collector 100 and the collecting electrode 115 which is the dust collecting plate through three insulators (not shown). Separated to supply a positive current to each piano wire (120).
[27] In addition, the collecting electrode 115 is charged with the piano wire 120 of the anode passing through the center of the honeycomb while carrying a current of the negative (-) pole.
[28] The conventional piano wire 120 is attached to the cathode collecting electrode 115 while maintaining the straight line of the piano wire 120 by hanging a weight (122) made of a steel rod 25 mm in length 300 mm in the lower end thereof Is blocking.
[29] When tar is adsorbed and flowed down into the honeycomb, which is the collecting electrode 115, the tar layer 125 becomes thicker at the lower side, and as shown in FIG. 3, the interval between the piano wire 120 and the discharge electrode is narrowed. At this time, as the piano wire 120 is slightly shaken by the sea gage gas flowing from the lower part to the upper part of the dust collector, the tar layer 125 of the thickened side and the piano wire 120 come into brief contact with each other. The piano wire 120 is tapered by a small arc generated at each time and wears out little by little.
[30] Thus, the part where the piano wire 120 is mainly broken is about 15 cm (capture electrode end) from the upper end of the weight 122, and the broken weight 122 does not cause a problem even if dropped to the bottom, but almost suspended on the top Most of the piano wires 120 are rolled up to release the insulation state while being in contact with the wall of the collecting electrode 115 to directly transfer current to the collecting electrode 115, and the dust collector 100 trips at a short time. Stops the power supply.
[31] When the electrostatic precipitator 100 is tripped as described above, the worker should enter the inside of the electrostatic precipitator 100 to remove the piano wire 120 being in contact with the precipitator 100 to maintain the insulation state, which is a broken piano wire. Since the power is continuously supplied from the 120 to the collecting electrode 115 side, restarting of the electrostatic precipitator 100 becomes impossible.
[32] Therefore, the workers have to remove this, but the dust collector 100 inside the various substances harmful to the human body, such as tar naphthalene ammonia hydrogen benzene compound, strong smell, and the preparation process and working conditions are poor so that the worker avoids There is a problem.
[33] In addition, since the maintenance work is performed for a long time, there is a problem such as supplying the tar particles (mist) in the sea cucumber gas due to the repair work of the electric dust collector 100, and supplying them to the piano wire 120 in advance. It was required to prevent the installation trip.
[34] The present invention is to solve the above conventional problems, the purpose of the first is to prevent the short circuit of the piano wire, which is the main trip cause of the electrostatic precipitator, and the second to determine whether the breakdown of the electrostatic precipitator is caused by the insulation of the piano wire short Electrostatic precipitator can prevent the dust collector from tripping by preventing broken piano wire from touching the honeycomb and destroying insulation even if the third piano wire is broken. It is to provide a trip prevention device by the inner piano wire.
[1] 1 is an external configuration diagram showing a general electric dust collector;
[2] 2 shows a piano wire fixing structure according to the related art.
[3] a) is a left side view of the piano wire, b) is a right side view;
[4] 3 is a structural diagram of a piano wire fixing device according to the prior art,
[5] a) Coal tar is attached to the bottom of the collecting plate,
[6] b) is a situation in which a trip is generated by a piano wire;
[7] 4 is a block diagram of a trip prevention device according to the present invention;
[8] 5 is an exploded view of a trip prevention device according to the present invention;
[9] 6 is an operational state diagram of the trip prevention device according to the present invention,
[10] a) If the tension is normally applied to the piano wire,
[11] b) is a case where the piano wire is short-circuited.
[12] <Description of the symbols for the main parts of the drawings>
[13] 10 ..... Fixed part 12 ..... Bracket
[14] 15 ..... Protruding bar 20 ..... Discharge copper disc
[15] 22 ..... Spring 25 ..... Sleeve
[16] 30 ..... moving part 32 ..... removable copper disc
[17] 34 ..... Support 36 ..... Piano wire
[18] 40 ..... Weight 45 ..... Insulation tube
[19] 100 .... electrostatic precipitator 105 .... fixed electrode
[20] 115 .... capture electrode 125 ... tar layer
[35] The present invention to achieve the above object,
[36] In the trip prevention device of the electrostatic precipitator which separates and collects the tar present as fine particles in the sea cucumber gas, a protruding rod is formed on a fixed electrode to which a positive current is supplied, and each of the protruding rods has a spring and a discharge copper. Fixing part to be elastically supported to the upper side by inserting the disc; A moving part having a detachable copper disc inserted into the protrusion bar loosely on an upper end thereof, a piano wire being connected to a lower side of the detachable copper disc, and having a weight added to a lower end of the piano wire; And a collecting electrode made of a honeycomb with the piano wire positioned therein and carrying a negative (-) current. The trip prevention device by the piano wire in the electric dust collector is provided.
[37] Hereinafter, the present invention will be described in more detail with reference to the drawings.
[38] The trip prevention device 1 by the piano wire in the electrostatic precipitator according to the present invention has a fixing part 10, as shown in FIG. 4, wherein the fixing part 10 has a positive current. A vertically projecting rod 15 is erected vertically through the bracket 12 of the b-shaped cross section to the fixed electrode 105 to which the electrode is supplied, and the discharge copper disc 20 which can be moved up and down and the spring 22 which supports it from below. ) To install.
[39] The discharge copper disc 20 is loosely fitted to the protruding rod 8, and has a sleeve 25 inserted into the spring 22 at the lower end thereof and fitted to the protruding rod 15. Therefore, the discharge copper disc 20 may be supported by the spring 22 more stably due to the sleeve portion 25.
[40] In addition, the fixing part 10 is equipped with a moving part 30, the moving part 30 has a removable copper disc 32 on the upper end that is loosely fitted to the protruding bar 15, The lower side of the removable copper disc 32 is attached to the connection support 34 to connect the piano wire (36).
[41] The weight 40 is integrally connected to the lower end of the piano wire 36, and in this case, the weight of the piano wire linear balance retaining weight 40 is normal as shown in FIG. 6A. The current is supplied to the piano wire 36 while pressing the discharge copper disc 20 and the cutting spring 22 downward while acting downward through the connection support 34 and the removable copper disc 32.
[42] On the other hand, an insulating tube 45 is fitted to the piano wire 36 on the upper piano wire 36 of the weight 40, which is shown in Figure 6a, the collection electrode 115 of the The lower end is fitted with a length so that it is located in the middle.
[43] In the above, the fixed electrode 105, the bracket 12, the protruding rod 15, the spring 22 and the discharge copper disc 20, and the removable copper disc of the moving part 30 to which the fixed part 10 is connected. 32, support 34, piano wire 36 and the like are all excellent electrical conductors.
[44] According to the present invention configured as described above, if one piano wire 36 is broken during operation of the electrostatic precipitator 100, as shown in Figure 6b), the weight of the lower piano wire linear balance maintenance weight 40 As the force of the spring 22 acts upward, the discharge copper disc 20 and the detachable disc 32 are pushed up to the ends of the fixed protruding bar 15, and the copper is removed from the fixed protruding bar 15. The disk 32 to spring up, and the removable copper disk 32 is dropped to the lower side while being separated to the side due to the imbalance of the weight by the connecting support 34 attached to the side.
[45] Therefore, according to the present invention, even if the disconnected piano wire 36 is in contact with the collecting electrode 115, the power supply is already short-circuited at the top, and thus insulation between the piano wire 36 and the collecting electrode 115 is removed. This prevents the electric dust collector 100 from tripping due to a short circuit of one of the 680 piano wires 36, and can immediately resume operation even if a trip occurs temporarily.
[46] In order to check this, a resistance measuring instrument (not shown) may be installed on the power panel to check the insulation state of the electric dust collector 100 during a trip, and the tar layer 125 of the piano wire 36 and the collecting electrode 115 may be used. In order to prevent the arc is generated by contacting the) is to install the insulation tube 45 at the bottom of the piano wire to prevent the equipment trip by the arc.
[47] In the present invention, in order to increase the contact force of the detachable disc 32, by changing the size of the conventional piano wire linear balance retaining weight, it is possible to operate accurately.
[48] As described above, the present invention allows the power supply portion to be disconnected at the same time as the piano wire 36 is shorted, so that the dust collector 100 is rarely tripped. And, even if a trip is made by instantaneous contact, the broken piano wire 36 is disconnected and the power is cut off, so there is no problem in restarting the dust collector 100.
[49] As described above, according to the present invention, even if only one of the 680 piano wires 36 is broken, the dust collector 100, which is tripped and unable to operate, ensures insulation even when the piano wires 36 are broken. Even if the piano wire 36 is broken, it is immediately restarted and operated, and the broken parts may be replaced at the scheduled regular repair date.
[50] In addition, since the insulating tube 45 is installed to prevent the arc wire from contacting the piano wire 36 and the tar layer 125 of the collecting electrode 115, the breakage of the piano wire 36 is minimized to provide durability. It is greatly increased and prevents an equipment trip by an arc.
[51] Therefore, it is possible to purify the quality seed oil by reducing the workload of the maintenance worker and shortening the downtime of the facility. In addition, the maintenance work that occurred from time to time can only work on the scheduled maintenance work days can reduce the maintenance cost and the effect of reducing the workload is obtained.

权利要求:
Claims (3)
[1" claim-type="Currently amended] In the trip prevention apparatus of the electric dust collector which separates and collects the tar which exists as particulates in sea cucumber gas,
Protruding rod 15 is formed on the fixed electrode 105 to which a positive (+) current is supplied, and the spring 22 and the discharge copper disc 20 are respectively inserted into the protruding rod 15 to be elastically supported upward. Fixing portion 10 to be made; The upper side of the removable copper disc 32 is inserted into the protrusion bar 15 in a loose state, the lower side of the removable copper disc 32 is connected to the piano wire 36, the piano wire 36 A moving part 30 having a weight 40 mounted at a lower end thereof; And a collecting electrode 115 having the piano wire 36 positioned therein and having a honeycomb shape and having a current of a negative pole, wherein the piano wire 36 has a current of a negative pole. .
[2" claim-type="Currently amended] The upper piano wire 36 of the weight 40 has a length such that the lower end of the collecting electrode 115 is located in the middle, and the insulating tube 45 is inserted therein. Trip prevention device by piano wire in electric dust collector.
[3" claim-type="Currently amended] According to claim 1, wherein the discharge copper disc 20 is formed at the lower end of the spring 22 to be inserted into the spring 22 to be fitted to the protruding bar 15 to the spring 22 more stably A trip prevention device by a piano wire in an electrostatic precipitator, characterized in that it is supported by.

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同族专利:

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公开号 | 公开日

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KR100891791B1|2009-04-07|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2002-07-24|Application filed by 주식회사 포스코

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2002-07-24|Priority to KR1020020043458A

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2004-01-31|Publication of KR20040009493A

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2009-04-07|Application granted

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2009-04-07|Publication of KR100891791B1

优先权:

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申请号 | 申请日 | 专利标题

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KR1020020043458A|KR100891791B1|2002-07-24|2002-07-24|An apparatus for preventing electrical trip by piano wire in an electrical dust collector|