CN107758552B - A lifting type sampling device for measuring equivalent salt density, gray density and pollution - Google Patents

A lifting type sampling device for measuring equivalent salt density, gray density and pollution Download PDF

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Publication number
CN107758552B
CN107758552B CN201711205933.4A CN201711205933A CN107758552B CN 107758552 B CN107758552 B CN 107758552B CN 201711205933 A CN201711205933 A CN 201711205933A CN 107758552 B CN107758552 B CN 107758552B
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transmission shaft
fixed
density
cam
sampling device
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CN201711205933.4A
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CN107758552A (en
Inventor
郭磊
王栋
李媛
张科
董曼玲
丁国君
董丽洁
周少珍
张笑颜
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State Grid Henan Electric Power Co Ltd
Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
State Grid Corp of China SGCC
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State Grid Henan Electric Power Co Ltd
Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
State Grid Corp of China SGCC
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Priority to CN201711205933.4A priority Critical patent/CN107758552B/en
Publication of CN107758552A publication Critical patent/CN107758552A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Cable Installation (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention discloses a lifting type sampling device for measuring equivalent salt density ash density pollution, which comprises a hand-operated lifter, a 316 type anti-corrosion steel wire rope and a fixed pulley, wherein the hand-operated lifter is fixed on a metal framework of a transformer substation, and is fixed at the bottom of the metal framework of the transformer substation at a certain distance from the ground; the fixed pulleys are arranged at the top of the transformer substation metal framework and are directly above the appointed position of the reference insulator. According to the sampling device, the reference insulator is lifted to any designated position by the hand-operated lifter fixed on the steel framework by using the 316 type anti-corrosion steel wire rope, the position of the reference insulator can be fixed by self-locking at any position, and workers can operate the lifting of the reference insulator on the ground, so that the conditions of high-altitude falling, mistaken touch of operation equipment, induced electric low-voltage electric shock and the like can be completely avoided; meanwhile, the reference insulator is lowered to the ground surface position, so that the work of personnel is convenient, and pollution loss caused by mistaken rubbing of the surface of the insulator is avoided to a great extent.

Description

Lifting sampling device for measuring equivalent salt density and ash density pollution
Technical Field
The invention relates to the technical field of regional pollution degree measurement, in particular to a lifting sampling device for measuring equivalent salt density and ash density.
Background
At present, the traditional sampling for measuring the equivalent salt deposit density dirt is that a worker uses ascending objects (a trolley, a cat ladder, a steel framework for suspending a reference insulator and the like) to reach the vicinity of the reference insulator suspended at high altitude to perform high altitude sampling, or dismantles and removes the reference insulator to perform ground sampling. If the suspension position of the reference insulator is very high (more than 20 meters), the simple equivalent salt deposit dense dust pollution sampling work often needs the cooperation of the bucket arm vehicle, and the working time is wasted in the processes of renting, coordinating, commanding, arranging vehicles, cooperating ascending and the like of the tool vehicle in a large amount. In the ascending process, the situations of high altitude falling, mistaken touch of operation equipment, induced electric low-voltage electric shock and the like are likely to occur; the surface of the reference insulator is inevitably contacted in the process of high-altitude sampling, disassembly and carrying of the insulator to cause pollution loss, and the final accuracy of the test result is affected.
Disclosure of Invention
The invention aims to provide a lifting sampling device for measuring equivalent salt deposit dense dust pollution, which can lift a reference insulator at any designated position, can be self-locked at any position to fix the position of the reference insulator, and can avoid pollution loss caused by unavoidable contact with the surface of the reference insulator in the processes of high-altitude sampling, disassembly and carrying of the insulator, thereby greatly improving the final accuracy of a test result.
The invention adopts the technical scheme that:
a lifting type sampling device for measuring equivalent salt density and ash density and pollution comprises a hand-operated lifter fixed on a transformer substation metal framework, a 316 type anti-corrosion steel wire rope and a fixed pulley, wherein the hand-operated lifter is fixed at the bottom of the transformer substation metal framework and is spaced a certain distance from the ground; the fixed pulley is arranged at the top of the transformer substation metal framework and is hung right above a designated position of the reference insulator;
the hand-operated lifter comprises a transmission shaft shell, a transmission shaft arranged in the transmission shaft shell and a rocker arm arranged outside the transmission shaft shell, wherein a base is arranged on one side of the transmission shaft shell, a panel is arranged on the other side of the transmission shaft shell, a cylinder body is arranged in the middle of the transmission shaft shell, the cylinder body and the cylinder body are fixedly covered to form the hand-operated lifter, a wire outlet hole is formed in the upper side of the cylinder body, a fixed screw seat and a positioning column are arranged on the base in the transmission shaft shell, a transmission shaft body is arranged on the base, a transmission shaft is arranged outside the spring, and a wear-resistant sleeve is arranged between the transmission shaft and the transmission shaft body; the cam penetrates through the end, close to the base, of the outer side of the transmission shaft body; the circular groove is internally provided with a spring, two end parts of the spring are horizontally bent inwards and point to the circle center to form an included angle of 30-60 degrees, a cam at one end of the outer side of the transmission shaft body positions the spring in the groove, and the outer periphery of the cam is axially provided with an open slot which is matched with the horizontal bending of the two end parts of the spring; the steel wire rope winding wheel is fixed on the transmission shaft and is connected with the cam, a lug is arranged at the outer side of the steel wire rope winding wheel and is axially arranged in an open slot of the cam, and the lug is matched with the open slot of the cam to limit two end parts of the spring in a gap;
one end of the 316-type anti-corrosion steel wire rope is fixed with a steel wire rope winding wheel of the hand-operated lifter, and the other end of the 316-type anti-corrosion steel wire rope penetrates through the fixed pulley and is fixedly connected with the reference insulator; the other end of the transmission shaft is axially provided with an inner angle groove at the bottom for fixing the rocker arm inserted into the inner angle groove.
And two sides of the top of the transmission shaft are provided with round mounting holes.
The wire outlet hole is of a rectangular, round or oval structure.
The automatic locking device is characterized by further comprising a positive trigger locking mechanism, wherein the positive trigger locking mechanism is arranged at one end, close to the rocker arm, of the outer side of the shaft body of the transmission shaft and comprises a centrifugal swing rod, a transmission wheel, a pawl and a ratchet wheel, the centrifugal swing rod and the transmission shaft are coaxially arranged, the transmission cam is arranged at the lower side of the transmission shaft, a sliding pin of the transmission cam is fixed on the pawl, the pawl is matched with the ratchet wheel for use, and the rotation of the transmission shaft is naturally prevented after the pawl is engaged with the ratchet wheel.
The rocker arm drives the transmission shaft to rotate, and the rocker arm is an L-shaped rocker arm.
The two end parts of the spring are bent inwards horizontally and point to the circle center to form an included angle of 60 degrees.
According to the sampling device, the reference insulator is lifted to any designated position by the hand-operated lifter fixed on the steel framework by using the 316 type anti-corrosion steel wire rope, the position of the reference insulator can be fixed by self-locking at any position, and workers can operate the lifting of the reference insulator on the ground, so that the conditions of high-altitude falling, mistaken touch of operation equipment, induced electric low-voltage electric shock and the like can be completely avoided; meanwhile, the reference insulator is lowered to the ground surface position, so that the work of personnel is convenient, and pollution loss caused by mistaken rubbing of the surface of the insulator is avoided to a great extent. In addition, the initiative trigger locking mechanism on the transmission shaft of the sampling device can directly lock the rotation of the transmission shaft when the rotation speed of the transmission shaft is suddenly increased, so that the occurrence of the possible occurrence of the acceleration falling condition of the reference insulator is avoided. The device is convenient to use and not easy to corrode, does not need to arrange ascending articles in work, saves a great deal of time and energy, greatly improves the working efficiency, the operation safety coefficient and the accuracy of sampling data, and has strong field practicability and popularization.
Drawings
FIG. 1 is a schematic view of the mounting structure of the present invention;
fig. 2 is a schematic structural view of the hand-operated lifter according to the present invention.
Detailed Description
As shown in fig. 1 and 2, the invention comprises a hand-operated lifter 1, a steel wire rope 2 and a fixed pulley 3 which are fixed on a transformer substation metal framework, wherein the hand-operated lifter 1 is fixed at the bottom of the transformer substation metal framework and is spaced a certain distance from the ground; the fixed pulley 3 is arranged at the top of the transformer substation metal framework and is hung right above a designated position on the reference insulator 4;
the hand-operated lifter 1 comprises a transmission shaft shell 5, a transmission shaft 11 arranged in the transmission shaft shell 5 and a rocker arm 17 arranged outside the transmission shaft shell, wherein a base 23 is arranged on one side of the transmission shaft shell 5, a panel is arranged on the other side of the transmission shaft shell, a cylinder body is arranged in the middle of the transmission shaft shell, the base and the panel are fixedly covered to form the hand-operated lifter 1, a wire outlet 19 is arranged on the upper side of the cylinder body, a fixed screw seat 22 is arranged on the inner base 23 of the transmission shaft shell 5, a transmission shaft body 11 is arranged on the base 23, a spring 8 is sleeved outside a transmission shaft 10, and a wear-resistant sleeve 7 is arranged between the transmission shaft 10 and the transmission shaft body 11; a circular groove 9 is radially formed in one end, close to the base, of the outer side of the transmission shaft body 11, and a cam 21 penetrates through one end, close to the base 23, of the outer side of the transmission shaft body 11; the circular groove 9 is internally provided with a spring 8, two end parts of the spring 8 are horizontally bent inwards and point to the circle center to form a 45-degree included angle, one end of the outer side of the transmission shaft is matched with the cam 21 to position the spring 8 in the circular groove 9, and the outer periphery of the cam 21 is axially provided with an open slot which is matched with the horizontal bending of the two end parts of the spring 8; the 2 winding wheel is fixed on the transmission shaft 10 and is connected with the cam 21, a lug 20 is arranged at the outer side of the steel wire rope 2 winding wheel, the lug 20 is axially arranged in an open slot of the cam 21, and the lug is matched with the open slot of the cam to limit the two ends of the spring in a gap;
one end of the 316 type anti-corrosion steel wire rope 2 is fixed with a steel wire rope winding wheel of the hand-operated lifter, and the other end of the 316 type anti-corrosion steel wire rope passes through the fixed pulley 3 and is fixedly connected with the reference insulator 4; the other end of the transmission shaft 10 is provided with an inner angular groove (not shown in the figure) at the axial bottom for fixing the rocker arm 17 inserted into the inner angular groove.
The automatic locking device is characterized by further comprising a positive trigger locking mechanism 16, wherein the positive trigger locking mechanism is arranged at one end, close to the rocker arm, of the outer side of the shaft body of the transmission shaft and comprises a centrifugal swing rod 12, a transmission cam 13, a pawl 14 and a ratchet wheel 15, the centrifugal swing rod 12 and the transmission shaft are coaxially arranged, the transmission cam 13 is arranged at the lower side of the transmission shaft 10, a sliding pin of the transmission cam 13 is fixed on the pawl 14, the pawl 4 is matched with the ratchet wheel 5 for use, and the rotation of the transmission shaft is naturally prevented after the sliding pin is engaged.
If the above-mentioned locking device fails to cause the reference insulator to slip down under the acceleration of gravity, the transmission shaft 10 will rotate in an accelerated manner, the centrifugal swing rod 12 on the transmission shaft will be extended outwards by the power provided by the rotation of the shaft body 11, driving the transmission cam 13 on the lower side of the transmission shaft 10, the displacement of the transmission cam 13 will drive the pawl 14 to displace (the pawl 14 has the sliding pin of the transmission cam 13), the pawl 14 will reach the notch position preventing the rotation of the transmission shaft ratchet, after the pawl 14 is engaged with the ratchet 15, the rotation of the transmission shaft 10 is naturally prevented, and the acceleration and the downward sliding of the reference insulator are locked.
And two sides of the top of the transmission shaft are provided with round mounting holes.
The wire outlet 19 has a rectangular, circular or oval structure.
When the surface pollution of the reference insulator needs to be sampled, a worker can stand on the ground to operate the hand-operated lifter so that the reference insulator falls near the ground surface, and the worker can conveniently sample the pollution. The rocker arm drives the transmission shaft to rotate, and the rocker arm 17 is an L-shaped rocker arm.
The invention relates to a locking device for a broken line frame part at the axial top of a transmission shaft in a hand-operated lifter, which is based on the principle that: when the reference insulator 4 is required to be lifted, the hand rocker 17 rotates clockwise, and the transmission shaft 10 drives the lug 20 to push the horizontal bending of the spring 8 to shrink inwards, so that friction between the spring 8 and the circular groove 9 is reduced; after the reference insulator 4 reaches a certain position, a reverse acting force is generated on the transmission shaft 10 due to the gravity action of the reference insulator, and the lug 20 reversely pushes the horizontal bending of the spring 8 to expand outwards, so that the friction force between the spring 8 and the circular groove 9 is increased, and the steel wire rope 2 is locked at a certain position.
According to the sampling device, the reference insulator is lifted to any designated position by the hand-operated lifter fixed on the steel framework by using the 316 type anti-corrosion steel wire rope, the position of the reference insulator can be fixed by self-locking at any position, and workers can operate the lifting of the reference insulator on the ground, so that the conditions of high-altitude falling, mistaken touch of operation equipment, induced electric low-voltage electric shock and the like can be completely avoided; meanwhile, the reference insulator is lowered to the ground surface position, so that the work of personnel is convenient, and pollution loss caused by mistaken rubbing of the surface of the insulator is avoided to a great extent. In addition, the initiative trigger locking mechanism on the transmission shaft of the sampling device can directly lock the rotation of the transmission shaft when the rotation speed of the transmission shaft is suddenly increased, so that the occurrence of the possible occurrence of the acceleration falling condition of the reference insulator is avoided. The device is convenient to use and not easy to corrode, does not need to arrange ascending articles in work, saves a great deal of time and energy, greatly improves the working efficiency, the operation safety coefficient and the accuracy of sampling data, and has strong field practicability and popularization.

Claims (6)

1.一种升降式测量等值盐密灰密污秽取样装置，其特征在于：包括固定在变电站金属构架上的手摇升降器、316型防腐钢丝绳和定滑轮，所述的手摇升降器固定在变电站金属构架底部，与地面间隔一定距离；所述的定滑轮设置在变电站金属构架顶部，且在参考绝缘子悬挂指定位置的正上方；1. A lifting type sampling device for measuring equivalent salt density, gray density and pollution, which is characterized by: including a hand lift fixed on the metal frame of the substation, a 316 type anti-corrosion steel wire rope and a fixed pulley. The hand lift is fixed At the bottom of the metal frame of the substation, there is a certain distance from the ground; the fixed pulley is set on the top of the metal frame of the substation, and directly above the designated position where the reference insulator is suspended; 所述的手摇升降器包括有传动轴壳体、设置在传动轴壳体内的传动轴和设置在传动轴壳体外的摇臂，所述传动轴壳体一侧设有底座、另一侧设有面板，中间为筒体，三者固定盖设而成，所述的筒体上侧设有出线孔，所述的传动轴壳体的内部底座上设置有固定螺丝座、定位柱，底座上设有传动轴轴体，弹簧外侧设有传动轴，传动轴与传动轴轴体之间安装有耐磨套；所述传动轴轴体外侧靠近底座一端径向设置有圆形凹槽，凸轮穿过套在传动轴轴体外侧靠近底座一端；圆形凹槽内设置有弹簧，所述弹簧的两端部水平向内弯曲并指向圆心形成一个30-60度夹角，传动轴轴体外侧一端凸轮将弹簧定位在凹槽内，凸轮的外周边轴向开设开口槽与弹簧两端部的水平弯曲配合；钢丝绳缠绕轮固定在传动轴上且与凸轮相接，在钢丝绳缠绕轮外侧设有凸片，凸片沿轴向置于凸轮的开口槽内，凸片与凸轮的开口槽配合将弹簧的两个端部限定在其间隙内；The hand lifter includes a transmission shaft housing, a transmission shaft arranged inside the transmission shaft housing and a rocker arm arranged outside the transmission shaft housing. The transmission shaft housing is provided with a base on one side and a base on the other side. There is a panel and a cylinder in the middle, and the three are fixed and covered. The upper side of the cylinder is provided with an outlet hole. The internal base of the transmission shaft housing is provided with a fixing screw seat and a positioning column. There is a transmission shaft body, a transmission shaft is provided outside the spring, and a wear-resistant sleeve is installed between the transmission shaft and the transmission shaft body; a circular groove is radially provided on the outside of the transmission shaft body near the base end, and the cam passes through it. The sleeve is placed on the outside of the transmission shaft body near one end of the base; a spring is provided in the circular groove, and the two ends of the spring are horizontally bent inward and point toward the center of the circle to form an included angle of 30-60 degrees. The cam locates the spring in the groove, and the outer periphery of the cam is axially opened with an opening slot to match the horizontal bending of both ends of the spring; the wire rope winding wheel is fixed on the transmission shaft and connected to the cam, and there is a convex groove on the outside of the wire rope winding wheel. The tab is placed in the opening slot of the cam along the axial direction, and the tab cooperates with the opening slot of the cam to limit the two ends of the spring within its gap; 所述316型防腐钢丝绳的一端与手摇升降器的钢丝绳缠绕轮固定，另一端穿过定滑轮与参考绝缘子固定连接；所述传动轴另一端轴向底部有内角槽，用于摇臂插接在内角槽内进行固定。One end of the 316 type anti-corrosion wire rope is fixed to the wire rope winding wheel of the hand lifter, and the other end passes through the fixed pulley and is fixedly connected to the reference insulator; the other end of the transmission shaft has an inner angle groove at the axial bottom for rocker arm insertion Fasten in the inner corner grooves. 2.根据权利要求1所述的升降式测量等值盐密灰密污秽取样装置，其特征在于：所述的传动轴顶部两侧设有圆形安装孔。2. The lift-type sampling device for measuring equivalent salt density, gray density and contamination according to claim 1, characterized in that: there are circular mounting holes on both sides of the top of the transmission shaft. 3.根据权利要求2所述的升降式测量等值盐密灰密污秽取样装置，其特征在于：所述的出线孔为矩形、圆形或椭圆形结构。3. The lift-type sampling device for measuring equivalent salt density, gray density and pollution according to claim 2, characterized in that: the outlet hole is a rectangular, circular or oval structure. 4.根据权利要求3所述的升降式测量等值盐密灰密污秽取样装置，其特征在于：还设置有主动触发锁止机构，所述的主动触发锁止机构设置在传动轴轴体外侧靠近摇臂的一端，包括由离心式摆杆、传动轮、棘爪和棘轮，所述的离心式摆杆与传动轴同轴设置，传动凸轮设置在传动轴的下侧，传动凸轮的滑动销固定在棘爪上，棘爪与棘轮配合使用，当其噬合后自然阻止传动轴的转动。4. The lift-type sampling device for measuring equivalent salt density, gray density and contamination according to claim 3, characterized in that: it is also provided with an active trigger locking mechanism, and the active trigger locking mechanism is arranged outside the transmission shaft body. One end close to the rocker arm includes a centrifugal swing rod, a transmission wheel, a pawl and a ratchet wheel. The centrifugal swing rod is coaxially arranged with the transmission shaft. The transmission cam is arranged on the lower side of the transmission shaft. The sliding pin of the transmission cam It is fixed on the pawl, and the pawl is used in conjunction with the ratchet wheel. When it is engaged, it will naturally prevent the rotation of the transmission shaft. 5.根据权利要求4所述的一种升降式测量等值盐密灰密污秽取样装置，其特征在于：所述的摇臂驱动传动轴转动，摇臂为L型摇杆。5. A lift-type sampling device for measuring equivalent salt density, gray density and contamination according to claim 4, characterized in that: the rocker arm drives the transmission shaft to rotate, and the rocker arm is an L-shaped rocker. 6.根据权利要求5所述的一种升降式测量等值盐密灰密污秽取样装置，其特征在于：所述的弹簧的两端部水平向内弯曲并指向圆心形成夹角为60度。6. A lift-type sampling device for measuring equivalent salt density, gray density, and pollution according to claim 5, characterized in that: the two ends of the spring are horizontally bent inward and pointed toward the center of the circle to form an included angle of 60 degrees.
CN201711205933.4A 2017-11-27 2017-11-27 A lifting type sampling device for measuring equivalent salt density, gray density and pollution Active CN107758552B (en)

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CN107758552B true CN107758552B (en) 2023-10-20

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1155348A (en) * 1966-09-28 1969-06-18 Demag Zug Gmbh Safety Device for Preventing Crashing of Slides or Carriages in Stacking Cranes, Lift Trucks, and the like
WO1995019203A1 (en) * 1994-01-13 1995-07-20 Barrow Hepburn Sala Limited Speed responsive coupling device especially for fall arrest apparatus
CN103130140A (en) * 2013-02-20 2013-06-05 山东电力集团公司烟台供电公司 Versatile cable trench cover plate lifting vehicle of transformer substation
CN203147198U (en) * 2013-04-16 2013-08-21 国家电网公司 Portable adjustable smoke sampling system bracket
CN203690020U (en) * 2014-01-28 2014-07-02 国家电网公司 Extra-high-voltage direct current insulator pollution degree live-line test chain hanging hardware fitting
CN105820644A (en) * 2016-04-26 2016-08-03 国网河南省电力公司电力科学研究院 Superhydrophobic coating, anti-pollution-flashover superhydrophobic insulator and preparation technique thereof
CN207699093U (en) * 2017-11-27 2018-08-07 国网河南省电力公司电力科学研究院 A kind of close filthy sampler of lift measurement equivalent salt density ash

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1155348A (en) * 1966-09-28 1969-06-18 Demag Zug Gmbh Safety Device for Preventing Crashing of Slides or Carriages in Stacking Cranes, Lift Trucks, and the like
WO1995019203A1 (en) * 1994-01-13 1995-07-20 Barrow Hepburn Sala Limited Speed responsive coupling device especially for fall arrest apparatus
CN103130140A (en) * 2013-02-20 2013-06-05 山东电力集团公司烟台供电公司 Versatile cable trench cover plate lifting vehicle of transformer substation
CN203147198U (en) * 2013-04-16 2013-08-21 国家电网公司 Portable adjustable smoke sampling system bracket
CN203690020U (en) * 2014-01-28 2014-07-02 国家电网公司 Extra-high-voltage direct current insulator pollution degree live-line test chain hanging hardware fitting
CN105820644A (en) * 2016-04-26 2016-08-03 国网河南省电力公司电力科学研究院 Superhydrophobic coating, anti-pollution-flashover superhydrophobic insulator and preparation technique thereof
CN207699093U (en) * 2017-11-27 2018-08-07 国网河南省电力公司电力科学研究院 A kind of close filthy sampler of lift measurement equivalent salt density ash

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
基于变电站模拟支柱绝缘子的汕头电网自然积污特性研究;陈昕;;华北水利水电大学学报(自然科学版)(01);全文 *
雾霾参数对绝缘表面等值盐密的影响;刘长义;王黎明;刘动;赵晨龙;张楚岩;卢明;;高电压技术(06);全文 *

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