CN112467669B - External damage protection device is prevented to transmission line - Google Patents
External damage protection device is prevented to transmission line Download PDFInfo
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- CN112467669B CN112467669B CN202011211345.3A CN202011211345A CN112467669B CN 112467669 B CN112467669 B CN 112467669B CN 202011211345 A CN202011211345 A CN 202011211345A CN 112467669 B CN112467669 B CN 112467669B
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- transmission line
- rope
- net
- power transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/18—Devices affording mechanical protection in the event of breakage of a line or cable, e.g. net for catching broken lines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to the technical field of power transmission line protection, and particularly discloses a protection device for preventing external force damage of a power transmission line, which comprises two iron towers and the power transmission line arranged between the two iron towers, wherein the protection device for preventing external force damage of the power transmission line comprises a protection net, the protection net comprises two steel ropes arranged at intervals and a rope net arranged between the two steel ropes, the rope net is fixedly connected with the two steel ropes, the two steel ropes are respectively and fixedly connected with the two iron towers, and the protection net is positioned below the power transmission line and is arranged at intervals with the power transmission line. The device solves the problems that in the operation process of the power transmission line, external force damage can happen from time to cause line tripping or disconnection, and the protection device connected with the power transmission line is too heavy to cause disconnection due to overlarge bearing gravity.
Description
Technical Field
The invention relates to the technical field of power transmission line protection, in particular to a protection device for preventing external force damage of a power transmission line.
Background
In the operation process of the power transmission line, the phenomenon that external force damage causes line tripping sometimes occurs, in the tripping statistics of the past year, the number of times that the external force damage causes tripping is only inferior to the number of times that lightning stroke tripping is performed, the external force damage is of a second multi-hop brake type, the types of the external force damage are more, for example, the damage of birds, the violation construction under the power transmission line and the damage of trees are numerous, the lines managed by a power enterprise are difficult to organize the strength to frequently patrol all the lines, and the phenomenon that the external force damage causes line tripping sometimes occurs.
Application number CN201921529835.0 discloses an electric power transmission line protection device in earlier stage application, including upper protective housing, connecting piece and lower floor's protective housing, the both sides of upper protective housing are all protrusion and extend and are formed the connecting piece, the spout has been seted up inside the both sides of lower floor's protective housing, the spout internal fixation has first spring, the bottom of connecting piece stretches into the spout inside with first spring is fixed continuous, the upper protective housing with the inboard of lower floor's protective housing all is fixed with the fixing base, the other end of fixing base is equipped with the arc cassette, two the inboard of arc cassette sets up relatively and forms circular snap ring and carries out the chucking to the power transmission line. The device can protect the line, but the weight of the power transmission line protection device is completely born by the power transmission line, so that the line is easily deformed, and the connection position is disconnected due to overlarge bearing gravity.
Disclosure of Invention
The invention aims to: the utility model provides a transmission line prevents external damage protection device to solve in the correlation technique in the transmission line operation in-process, can take place external damage occasionally and lead to the circuit tripping operation or disconnection, and the protection device that is connected with the transmission line overweight and the too big problem that breaks of bearing the gravity that leads to.
The invention provides an external force damage prevention protection device for a power transmission line, which comprises two iron towers and the power transmission line arranged between the two iron towers, wherein the external force damage prevention protection device for the power transmission line comprises a protection net, the protection net comprises two steel ropes arranged at intervals and a rope net arranged between the two steel ropes, the rope net is fixedly connected with the two steel ropes, the two steel ropes are respectively and fixedly connected with the two iron towers, and the protection net is positioned below the power transmission line and is arranged at intervals with the power transmission line.
As a preferred technical scheme of the protection device for preventing the external force damage of the power transmission line, the rope net comprises two net ropes and a plurality of net rope positioning devices, the two net ropes are respectively provided with a plurality of net rope positioning devices at intervals, the two net ropes are respectively and alternately fixedly connected with the net rope positioning devices of the two rope ropes along the length direction of the rope ropes, and two ends of the two net ropes are respectively and fixedly connected with two ends of the two rope ropes.
As a preferred technical scheme of the protection device for preventing the external force damage of the power transmission line, the net rope positioning device comprises a connecting rope and two hoops, two ends of the connecting rope are fixedly connected with the two hoops respectively, the connecting rope is wound and fixedly connected with the net rope, and the two hoops are fixedly connected with the steel rope.
As an optimal technical scheme of the protection device for preventing the external force damage of the power transmission line, the hoop comprises two semicircular hoop plates and an inserting pin, one ends of the two semicircular hoop plates are hinged, the other ends of the two semicircular hoop plates are respectively provided with an inserting part, the two inserting parts are inserted, the inserting parts are provided with through holes, and the inserting pin is inserted into the through holes of the two inserting parts.
As the preferred technical scheme of transmission line external damage protection device, the staple bolt includes two semicircle hoop boards and a connecting bolt, two semicircle hoop board one end is articulated, two the semicircle hoop board other end all is provided with the installation ear, two the installation ear is provided with relative first mounting hole, connecting bolt passes two first mounting hole will two semicircle hoop board locking.
As the preferred technical scheme of the protection device for preventing the external force damage of the power transmission line, the inner walls of the two semicircular hoop plates are fixedly connected with a rubber layer.
As a preferred technical solution of the protection device for preventing external damage to the power transmission line, the protection device for preventing external damage to the power transmission line further includes four wire rope fixing devices, and the wire rope fixing devices are respectively connected to one end of the wire rope, and the iron tower.
As a preferred technical scheme of the protection device for preventing the external force damage of the power transmission line, the wire rope fixing device comprises a connecting pipe and two U-shaped rings, the two U-shaped rings are respectively and fixedly connected with the connecting pipe, the end part of the wire rope is inserted into the connecting pipe and is fixedly connected with the connecting pipe, the end part of the wire rope is fixedly connected with the U-shaped ring perpendicular to the axial direction of the connecting pipe, and the iron tower is fixedly connected with the U-shaped ring along the axial direction of the connecting pipe.
As a preferred technical scheme of the protection device for preventing the external force damage of the power transmission line, the protection device for preventing the external force damage of the power transmission line further comprises four tower fixing devices, each tower fixing device comprises two connecting plates and a pin shaft, the two connecting plates are arranged on the iron tower at intervals, the connecting plates are provided with connecting through holes, and the pin shafts sequentially penetrate through one connecting through hole, a U-shaped ring connected with the tower and the other connecting through hole.
As a preferred technical scheme of the protection device for preventing the external force damage of the power transmission line, the tower fixing device further comprises a U-shaped hanging ring, two free ends of the U-shaped hanging ring are oppositely provided with U-shaped hanging ring through holes, the U-shaped hanging ring penetrates through a U-shaped ring connected with the tower, and the pin shaft sequentially penetrates through one connecting through hole, one U-shaped hanging ring through hole, the other connecting through hole and the other U-shaped hanging ring through hole.
The invention has the beneficial effects that:
the invention provides an external force damage prevention protection device for a power transmission line, which comprises two iron towers and the power transmission line arranged between the two iron towers, wherein the external force damage prevention protection device for the power transmission line comprises a protection net, the protection net comprises two steel ropes arranged at intervals and a rope net arranged between the two steel ropes, the rope net is fixedly connected with the two steel ropes, the two steel ropes are respectively and fixedly connected with the two iron towers, and the protection net is positioned at the lower end of the power transmission line and is arranged at intervals with the power transmission line. The protection net sets up in the transmission line lower extreme, and the distance with transmission line is the safe distance of corresponding voltage class, and when the safe distance that the foreign object is higher than transmission line voltage class, the foreign object can receive the prevention of protection net, and then the protection net plays protection transmission line's effect. The device solves the problems that in the operation process of the power transmission line, external force damage can happen from time to cause line tripping or disconnection, and the protection device connected with the power transmission line is too heavy to cause that the borne gravity is too large to cause disconnection.
Drawings
Fig. 1 is an installation schematic diagram of a protection device for preventing external force damage of a power transmission line in an embodiment of the invention;
fig. 2 is a schematic structural diagram of the protection device for preventing the external force damage of the power transmission line in the embodiment of the invention;
fig. 3 is a schematic structural view of a net rope positioning device of the protection device for preventing the transmission line from being damaged by external force in the embodiment of the invention;
fig. 4 is a schematic view of a hoop structure of the protection device for preventing external damage to the power transmission line according to the embodiment of the invention;
fig. 5 is a schematic view of another hoop structure of the protection device for preventing external damage to the power transmission line in the embodiment of the invention;
FIG. 6 is a schematic structural diagram of a wire rope fixing device of the protection device for protecting the power transmission line from external damage according to the embodiment of the present invention;
FIG. 7 is a front view of a tower fixing device structure of a protection device for preventing external damage to a power transmission line according to an embodiment of the present invention;
fig. 8 is a schematic side view of a tower fixing device structure of a protection device for preventing external force damage to a power transmission line in an embodiment of the invention.
In the figure:
100. an iron tower; 200. a transmission line;
1. a protection net; 11. a steel rope; 111. a rope fixing device; 1111. a connecting pipe; 1112. a U-shaped ring;
12. a rope net; 121. a net rope; 122. a net rope positioning device; 1221. hooping; 1222. connecting ropes;
13. a tower fixing device; 131. a first plate; 132. a second plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
Example one
As shown in fig. 1 to 8, the present embodiment provides a protection device for protecting a power transmission line from external damage, the protection device for protecting a power transmission line from external damage includes two iron towers 100 and a power transmission line 200 disposed between the two iron towers 100, the protection device for protecting a power transmission line from external damage includes a protection net 1, the protection net 1 includes two steel ropes 11 disposed at intervals and a rope net 12 disposed between the two steel ropes 11, the rope net 12 is fixedly connected to the two steel ropes 11, the two steel ropes 11 are respectively fixedly connected to the two iron towers 100, and the protection net 1 is located at a lower end of the power transmission line 200 and is disposed at intervals to the power transmission line 200. Protection net 1 sets up in transmission line 200 lower extreme, and the distance with transmission line 200 is the safe distance of corresponding voltage class, and when the safe distance that the foreign object is higher than transmission line 200 voltage class, the foreign object can receive protection net 1's prevention, and then protection net 1 plays the effect of protection transmission line 200. The device solves the problems that the power transmission line 200 is tripped or disconnected due to external force damage at times in the running process of the power transmission line 200, and the power transmission line 200 is disconnected due to overlarge bearing gravity caused by the overweight of a protection device connected with the power transmission line 200. In this embodiment, safety distances at three different voltage levels are exemplified, and specifically, a safety distance of 110kV is 4 meters, a safety distance of 220kV is 5 meters, and a safety distance of 500kV is 8 meters.
Optionally, the rope net 12 includes two net ropes 121 and a plurality of net rope positioning devices 122, the two steel ropes 11 are respectively provided with the plurality of net rope positioning devices 122 at intervals, the two net ropes 121 are respectively and alternately fixed to the net rope positioning devices 122 of the two steel ropes 11 along the length direction of the steel ropes 11, and two ends of the two net ropes 121 are respectively and fixedly connected to two ends of the two steel ropes 11. In this embodiment, two steel ropes 11 are spaced apart from each other, and a plurality of net rope positioning devices 122 are oppositely disposed on the two steel ropes 11 at intervals, respectively, two net ropes 121 are alternately and respectively fixed to the net rope positioning devices 122 of the two steel ropes 11 along the length direction of the steel ropes 11 from one ends of the two steel ropes 11, respectively, both ends of the net ropes 121 are fixedly connected to both ends of the steel ropes 11, and finally, the net ropes 121 and the steel ropes 11 are connected to form a net structure.
Optionally, the net rope positioning device 122 includes a connecting rope 1222 and two anchor ears 1221, two ends of the connecting rope 1222 are fixedly connected to the two anchor ears 1221, respectively, the connecting rope 1222 is fixedly connected to the net rope 121 in a winding manner, and both the anchor ears 1221 are fixedly connected to the net rope 11. In other embodiments, one anchor ear 1221 can be fixedly connected to the rope 11, and the other anchor ear 1221 can be fixedly connected to the rope 121. The two anchor ears 1221 are connected by a connecting wire.
Optionally, the hoop 1221 includes two semicircular hoop plates and an insertion pin, one end of each semicircular hoop plate is hinged, the other end of each semicircular hoop plate is provided with an insertion portion, the two insertion portions are inserted, the insertion portions are provided with through holes, and the insertion pin is inserted into the through holes of the two insertion portions. In this embodiment, the rope 11 is first placed in the circular ring surrounded by the two semicircular hoops, at this time, the two inserting parts are inserted, the through holes of the two inserting parts are opposite, and then the inserting pin is inserted into the through holes of the two inserting parts.
Optionally, the hoop 1221 includes two semicircular hoop plates and a connecting bolt, one end of each semicircular hoop plate is hinged, the other end of each semicircular hoop plate is provided with a mounting lug, the two mounting lugs are provided with first opposite mounting holes, and the connecting bolt passes through the two first mounting holes to lock the two semicircular hoop plates. In this embodiment, firstly, the rope 11 is placed in the circular ring surrounded by the two semicircular hooping plates, at this time, the two mounting lugs are attached to each other, the mounting holes of the two mounting lugs are opposite, then the bolt is inserted into the two mounting holes of the two mounting lugs, and finally the bolt is screwed tightly through the nut.
Preferably, the rubber layer is fixedly connected to the inner walls of the two semicircular hoop plates. In this embodiment, the rubber layer is fixedly connected inside the two semicircular hoop plates to increase the friction between the anchor ear 1221 and the rope 11, so as to prevent the anchor ear 1221 from moving along the length direction of the rope 11 under external force.
Optionally, the external damage protection device for the power transmission line further includes four wire rope fixing devices 111, and the wire rope fixing devices are respectively connected to one end of the wire rope 11, one end of the net rope 121, and the iron tower 100. In this embodiment, the rope fixing device includes three connecting members, and the three connecting members are connected to each other and respectively connect one end of the rope 11, one end of the net rope 121, and the iron tower 100. Specifically, the rope fixing device 111 includes a connection pipe 1111 and two U-shaped rings 1112, the two U-shaped rings 1112 are respectively and fixedly connected to the connection pipe 1111, an end of the rope 11 is inserted into the connection pipe 1111 and fixedly connected to the connection pipe 1111, an end of the rope 121 is fixedly connected to the U-shaped ring 1112 perpendicular to the axial direction of the connection pipe 1111, and the iron tower 100 is fixedly connected to the U-shaped ring 1112 along the axial direction of the connection pipe 1111. In this embodiment, the end of the rope 11 is inserted into the connection pipe 1111, and the connection pipe 1111 is deformed to fixedly connect the rope 11 to the connection pipe 1111.
Optionally, the external force damage prevention protection device for the power transmission line further includes four tower fixing devices 13, each tower fixing device 13 includes two connecting plates and a pin, the two connecting plates are arranged on the iron tower 100 at intervals, the connecting plates are provided with connecting through holes, and the pin sequentially penetrates through one connecting through hole, a U-shaped ring connected with the iron tower 100, and the other connecting through hole. In this embodiment, the connection board includes a first board 131 and a second board 132 perpendicular to the first board 131, a connection through hole is provided on the first board 131, a second mounting hole is provided on the second board 132, a bolt passes through the second mounting hole and is screwed with the iron tower 100, and the second mounting hole is a strip hole, when the second mounting hole is screwed with the iron tower 100, the distance between the two first boards 131 can be changed by adjusting the position of the bolt in the strip hole.
Specifically, the tower fixing device 13 further includes a U-shaped suspension loop, two free ends of the U-shaped suspension loop are oppositely provided with U-shaped suspension loop through holes, the U-shaped suspension loop passes through the U-shaped loop connected to the tower 100, and the pin sequentially passes through one connecting through hole, one U-shaped suspension loop through hole, the other connecting through hole, and the other U-shaped suspension loop through hole. In this embodiment, during installation, the U-shaped hanging ring is first inserted into the U-shaped ring 1112 along the axial direction of the connection pipe 1111, then the two U-shaped hanging ring through holes of the U-shaped hanging ring are opposite to the two connection through holes of the two connection plates, and finally the pin shaft is inserted into the U-shaped hanging ring through hole and the two connection through holes.
Example two
The difference between this embodiment and the first embodiment is that the net rope positioning device 122 is a connecting rope 1222, and the connecting rope 1222 winds and fixes the net rope 121 and the steel rope 11 at the same time.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The external force damage prevention protection device for the power transmission line comprises two iron towers (100) and the power transmission line (200) arranged between the two iron towers (100), and is characterized in that the external force damage prevention protection device for the power transmission line comprises a protection net (1), wherein the protection net (1) comprises two steel ropes (11) arranged at intervals and a rope net arranged between the two steel ropes (11), the rope net is fixedly connected with the two steel ropes (11), the two steel ropes (11) are respectively and fixedly connected with the two iron towers (100), and the protection net (1) is positioned below the power transmission line (200) and is arranged at intervals with the power transmission line (200);
the rope net comprises two net ropes (121) and a plurality of net rope positioning devices (122), the two steel ropes (11) are respectively provided with the plurality of net rope positioning devices (122) at intervals, the two net ropes (121) are respectively and alternately fixedly connected with the net rope positioning devices (122) of the two steel ropes (11) along the length direction of the steel ropes (11), and two ends of the two net ropes (121) are respectively and fixedly connected with two ends of the two steel ropes (11);
the net rope positioning device (122) comprises a connecting rope (1222) and two anchor ears (1221), two ends of the connecting rope (1222) are fixedly connected with the two anchor ears (1221) respectively, the connecting rope (1222) is fixedly connected with the net rope (121) in a winding manner, and the two anchor ears (1221) are fixedly connected with the steel rope (11).
2. The protection device for preventing the damage of the power transmission line by the external force as claimed in claim 1, wherein the hoop (1221) comprises two semicircular hoop plates and a plug pin, one ends of the two semicircular hoop plates are hinged, the other ends of the two semicircular hoop plates are respectively provided with a plug part, the two plug parts are plugged, the plug parts are respectively provided with a through hole, and the plug pin is plugged into the through holes of the two plug parts.
3. The protection device for preventing the external force damage of the power transmission line according to claim 1, wherein the hoop (1221) comprises two semicircular hoop plates and a connecting bolt, one ends of the two semicircular hoop plates are hinged, the other ends of the two semicircular hoop plates are provided with mounting lugs, the two mounting lugs are provided with opposite first mounting holes, and the connecting bolt passes through the two first mounting holes to lock the two semicircular hoop plates.
4. The external force damage prevention protection device for the power transmission line according to any one of claims 2 to 3, wherein a rubber layer is fixedly connected to the inner walls of the two semicircular hoop plates.
5. The electrical transmission line external damage prevention protection device according to claim 1, further comprising four wire rope fixing devices (111), wherein the wire rope fixing devices (111) are respectively connected to one end of the wire rope (11), one end of the net rope (121) and the iron tower (100).
6. The protection device for preventing the external damage of the power transmission line according to claim 5, wherein the rope fixing device (111) comprises a connection pipe (1111) and two U-shaped rings (1112), the two U-shaped rings (1112) are respectively and fixedly connected to the connection pipe (1111), the end of the rope (11) is inserted into the connection pipe (1111) and is fixedly connected to the connection pipe (1111), the end of the net rope (121) is fixedly connected to the U-shaped ring (1112) perpendicular to the axial direction of the connection pipe (1111), and the tower (100) is fixedly connected to the U-shaped ring (1112) along the axial direction of the connection pipe (1111).
7. The protection device for preventing the external damage to the power transmission line according to claim 6, further comprising four tower fixing devices (13), wherein each tower fixing device (13) comprises two connecting plates and a pin shaft, the two connecting plates are arranged on the iron tower (100) at intervals, the connecting plates are provided with connecting through holes, and the pin shaft sequentially penetrates through one connecting through hole, a U-shaped ring connected with the iron tower (100) and the other connecting through hole.
8. The protection device for preventing the external force damage of the power transmission line according to claim 7, wherein the tower fixing device (13) further comprises a U-shaped hanging ring, two free ends of the U-shaped hanging ring are oppositely provided with U-shaped hanging ring through holes, the U-shaped hanging ring penetrates through the U-shaped hanging ring connected with the tower, and the pin shaft sequentially penetrates through one connecting through hole, one U-shaped hanging ring through hole, the other connecting through hole and the other U-shaped hanging ring through hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011211345.3A CN112467669B (en) | 2020-11-03 | 2020-11-03 | External damage protection device is prevented to transmission line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011211345.3A CN112467669B (en) | 2020-11-03 | 2020-11-03 | External damage protection device is prevented to transmission line |
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| CN112467669A CN112467669A (en) | 2021-03-09 |
| CN112467669B true CN112467669B (en) | 2022-09-30 |
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| CN114260103B (en) * | 2021-12-01 | 2024-03-19 | 钢城集团凉山瑞海实业有限公司 | Cathode wire protection device of electrostatic precipitator |
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