CN112448350B - Drilling and crossing tower capable of preventing wire jumping and wind deflection - Google Patents
Drilling and crossing tower capable of preventing wire jumping and wind deflection Download PDFInfo
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- CN112448350B CN112448350B CN202011330683.9A CN202011330683A CN112448350B CN 112448350 B CN112448350 B CN 112448350B CN 202011330683 A CN202011330683 A CN 202011330683A CN 112448350 B CN112448350 B CN 112448350B
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- 238000005553 drilling Methods 0.000 title claims abstract description 9
- 230000009191 jumping Effects 0.000 title abstract description 4
- 239000012212 insulator Substances 0.000 claims abstract description 28
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 1
- 239000000725 suspension Substances 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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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
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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
- H02G7/05—Suspension arrangements or devices for electric cables or lines
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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
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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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
- H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers
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Abstract
本发明公开了一种防跳线风偏的钻越塔,包括塔身和塔头,所述塔头位于所述塔身的上方;沿所述塔头至所述塔身的方向分别水平布置有地线横担、第一横担和第二横担,在所述第二横担的两侧设置有跳线架,在所述跳线架上设置有多个倾斜设置的绝缘子串和多个水平设置的重锤,所述绝缘子串的两端分别与所述跳线架的顶部和底部固定,在所述跳线架的底部固定有多个水平并列设置的重锤。在提高跳线防风偏的同时还多重降低了整体的塔高,减少了成本,而且单片的重锤在工作人员上塔拆卸重锤时提供了便捷,降低了安全隐患。
The invention discloses a drilling tower for preventing wire jumping from wind deflection, which comprises a tower body and a tower head, the tower head is located above the tower body, and is arranged horizontally along the direction from the tower head to the tower body There are ground cross-arms, first cross-arms and second cross-arms, jumpers are arranged on both sides of the second cross-arms, and multiple insulator strings and multiple Two horizontally arranged weights, the two ends of the insulator string are respectively fixed to the top and bottom of the wire jumper, and a plurality of horizontally arranged weights are fixed on the bottom of the wire jumper. While improving the wind resistance of the jumper, it also reduces the overall tower height multiple times and reduces the cost, and the single-piece heavy hammer provides convenience when the staff goes up the tower to remove the heavy hammer, reducing safety hazards.
Description
技术领域technical field
本发明涉及高压架空输电线路的固定式重锤结构技术领域,尤其涉及一种防跳线风偏的钻越塔。The invention relates to the technical field of a fixed heavy hammer structure of a high-voltage overhead transmission line, in particular to a jumper tower for preventing wind deflection of wire jumpers.
背景技术Background technique
海拔高度越高,空气密度及绝对湿度就越小,从而使得输电线路的悬垂绝缘子串和空气间隙的放电电压降低。为保证高海拔地区架空输电线路的安全运行,必须保证悬垂绝缘子串摇摆角在允许值内。对于重冰区线路设计来说,设计中往往会采用增加铁塔高度等办法来尽量避免使用重锤来限制悬垂绝缘子串摇摆角过大,但是有些线路受地形限制,采用增加铁塔高度等办法不尽理想且投资较大,转而考虑采用重锤。CN204243690U公开了一种高压架空输电线路的固定式重锤结构,将多片重锤片紧固在联板上,安装在悬垂绝缘子串和悬垂线夹之间的高压架空输电线路上。CN111725762A公开了叠加组合式重锤片及其制造方法,但是层叠的重锤片还是会增加钻越塔的总高度,而且防跳线风偏效果有限。The higher the altitude, the lower the air density and absolute humidity, which reduces the discharge voltage of the suspension insulator strings and air gaps of the transmission line. In order to ensure the safe operation of overhead transmission lines in high altitude areas, it is necessary to ensure that the swing angle of the suspension insulator string is within the allowable value. For the design of lines in heavy ice areas, methods such as increasing the height of the iron tower are often used in the design to avoid using heavy hammers to limit the excessive swing angle of the suspension insulator strings. However, some lines are limited by the terrain, and methods such as increasing the height of the iron tower are endless. It is ideal and has a large investment, so consider using a heavy hammer instead. CN204243690U discloses a fixed weight structure of a high-voltage overhead transmission line, in which multiple pieces of weight are fastened to the connecting plate and installed on the high-voltage overhead transmission line between the suspension insulator string and the suspension clamp. CN111725762A discloses superimposed and combined heavy hammers and its manufacturing method, but the stacked heavy hammers will still increase the total height of the drilling tower, and the effect of preventing jumper windage is limited.
发明内容Contents of the invention
为克服上述缺陷,本发明的目的在于提供一种防跳线风偏的钻越塔,以降低塔体总高以及减少跳线风偏。In order to overcome the above-mentioned defects, the object of the present invention is to provide a jumper wire deflection prevention drilling tower, so as to reduce the overall height of the tower body and reduce the wind deflection of the wire jumper.
为实现上述目的,本发明采用如下技术方案:To achieve the above object, the present invention adopts the following technical solutions:
一种防跳线风偏的钻越塔,包括塔身和塔头,所述塔头位于所述塔身的上方;沿所述塔头至所述塔身的方向分别水平布置有地线横担、第一横担和第二横担,在所述第二横担的两侧设置有跳线架,在所述跳线架上设置有多个倾斜设置的绝缘子串和多个水平设置的重锤,所述绝缘子串的两端分别与所述跳线架的顶部和底部固定,在所述跳线架的底部固定有多个水平并列设置的重锤。A drill-through tower for preventing wire jumping and wind deflection, comprising a tower body and a tower head, the tower head is located above the tower body; horizontally arranged horizontally along the direction from the tower head to the tower body pole, the first cross-arm and the second cross-arm, on both sides of the second cross-arm there is a wire jumper, and on the wire jumper there are a plurality of obliquely arranged insulator strings and a plurality of horizontally arranged A heavy hammer, the two ends of the insulator string are respectively fixed to the top and the bottom of the wire jumper, and a plurality of weights arranged horizontally and side by side are fixed at the bottom of the wire jumper.
可选的,所述跳线架包括塔头跳线架和硬跳线架,所述塔头跳线架位于所述硬跳线架的上方,所述绝缘子串的一端与所述塔头跳线架连接,另一端与所述硬跳线架连接;所述重锤与所述硬跳线架通过螺栓连接,且位于所述硬跳线架的底部。Optionally, the jumper frame includes a tower head jumper frame and a hard jumper frame, the tower head jumper frame is located above the hard jumper frame, and one end of the insulator string is connected to the tower head jumper frame. The wire frame is connected, and the other end is connected with the hard wire jumper; the weight is connected with the hard wire jumper through bolts, and is located at the bottom of the hard jumper.
可选的,所述重锤的形状为长方体平板,采用铸铁材料,规格为400mm*600mm*30mm。Optionally, the weight is in the shape of a rectangular parallelepiped plate, made of cast iron, and the specification is 400mm*600mm*30mm.
可选的,所述重锤的数量为四片。Optionally, the number of the weights is four.
可选的,相邻绝缘子串之间的夹角在30°至50°之间。Optionally, the included angle between adjacent insulator strings is between 30° and 50°.
在所辖及新建输电线路上,广泛应用了合成绝缘子,但是由于绝缘子串重量轻,为了防止发生导线、跳线在大风、覆冰和各种应力作用下的大幅度舞动、摇摆,而导致绝缘子串上拔脱落、导线接地、短路、断线的危险情况发生,就需要在部分耐张、直线杆塔上安装悬重锤装置,通过其自重负载的下坠力,来平衡和消除导线受到的各种外力影响,保证导线对杆塔、拉线、跨越物、临相导地线之间等的安全距离。所以需要在耐张、转角、双回、分支、换相杆塔的跳线,垂度较大、绕跳或处在转角的外角侧及处在风区风口的直线杆塔承载平行导线的悬垂串上,均需要安装悬吊串及悬重锤装置,以防止绝缘子串上拔、抑制导线摇摆角过大的作用。但是由于悬重锤自身结构和联接方式不合理的问题,会造成重锤厚度过大,会保证导电体之间的距离,则需增加塔高;操作过程复杂、工作效率低、用时长;人员危险性和体力消耗大:在杆塔上转移位置频繁、手抱肩扛悬重锤装置进行安装;装置存在运行安全隐患;防风偏效果有限。Composite insulators are widely used on the jurisdiction and newly-built transmission lines. However, due to the light weight of the insulator strings, in order to prevent the occurrence of large-scale dancing and swinging of the wires and jumpers under the action of strong wind, ice and various stresses, the insulators will be damaged. In the event of dangerous situations such as strings being pulled off, wires grounded, short-circuited, or disconnected, it is necessary to install a suspension weight device on some tension-resistant and straight-line towers to balance and eliminate various stresses on the wires through the falling force of its own weight. Influenced by external forces, ensure the safe distance between the wires and towers, guy wires, crossing objects, adjacent phase ground wires, etc. Therefore, it needs to be used on the jumpers of tension, corners, double circuits, branches, and phase commutation towers, with large sags, jumps around or on the outer corner side of the corners, and on the suspension strings of parallel wires carried by straight towers at the tuyere of the wind zone. , it is necessary to install a suspension string and a suspension weight device to prevent the pull-up of the insulator string and suppress the excessive swing angle of the wire. However, due to the unreasonable structure and connection method of the suspension weight, the thickness of the weight will be too large, and the distance between the conductors will be guaranteed, so the tower height needs to be increased; the operation process is complicated, the work efficiency is low, and the time is long; personnel High risk and physical exertion: Frequent shifting of positions on the pole tower, installation of the hanging weight device with arms around the shoulders; the device has potential safety hazards in operation; the wind deflection effect is limited.
本发明的积极有益效果:Positive beneficial effect of the present invention:
将绝缘子串倾斜设置,在固定绝缘子串的跳线架底部固定有水平设置的多片重锤,降低了绝缘子串的高度和重锤高度,以增加重量,降低风阻,减少竖直横截面积,降低风阻,在提高跳线防风偏的同时还多重降低了整体的塔高,减少了成本,而且单片的重锤在工作人员上塔拆卸重锤时提供了便捷,降低了安全隐患。The insulator strings are set obliquely, and multiple horizontal weights are fixed at the bottom of the jumper frame that fixes the insulator strings, which reduces the height of the insulator strings and the height of the weights to increase weight, reduce wind resistance, and reduce vertical cross-sectional area. Reduce the wind resistance, improve the wind resistance of the jumper, and reduce the overall tower height multiple times, reducing the cost, and the single-piece heavy hammer provides convenience when the staff goes up the tower to remove the heavy hammer, reducing safety hazards.
附图说明Description of drawings
图1是本发明实施例1提供的一种防跳线风偏的钻越塔的正视结构示意图;Fig. 1 is a schematic diagram of the front view structure of a jumper anti-deviation drilling tower provided by Embodiment 1 of the present invention;
图2是本发明实施例1提供的一种示例性重锤的结构示意图;Fig. 2 is a schematic structural view of an exemplary weight provided in Embodiment 1 of the present invention;
图3是本发明实施例1提供的图1的B向侧视结构示意图。Fig. 3 is a schematic diagram of the side view of Fig. 1 provided by Embodiment 1 of the present invention.
具体实施方式Detailed ways
下面结合一些具体实施方式,对本发明做进一步说明。The present invention will be further described below in conjunction with some specific embodiments.
实施例1Example 1
如图1至图3所示,本发明公开了一种防跳线风偏的钻越塔,包括塔身和塔头,所述塔头位于所述塔身的上方;沿所述塔头至所述塔身的方向分别水平布置有地线横担10、第一横担20和第二横担30,在所述第二横担30的两侧设置有跳线架40,在所述跳线架40上设置有多个倾斜设置的绝缘子串50和多个水平设置的重锤60,所述绝缘子串50的两端分别与所述跳线架40的顶部和底部固定,在所述跳线架40的底部固定有多个水平并列设置的重锤60。As shown in Fig. 1 to Fig. 3, the present invention discloses a drill-through tower for preventing wire jumping and wind deflection, including a tower body and a tower head, and the tower head is located above the tower body; The direction of the tower body is respectively horizontally arranged with a ground wire cross arm 10, a
参考图2,为示例性的层叠重锤60结构示意图,跳线串长度一般为2.5m,重锤60片层叠的放置于重锤60座上,并用平行挂板悬挂在扁担下方,这样就无形的增长了带电体,由于带电体要保持一定距离,相应的就会增加钻越塔的高度,增加成本,而且这种设置的重锤60竖直横截面较大,风阻相应的也会增大,防跳线风偏效果有限。本发明将绝缘子串50倾斜设置,在固定绝缘子串50的跳线架40底部固定有水平设置的多片重锤60,以增加重量,降低风阻,在提高跳线防风偏的同时还多重降低了整体的塔高,减少了成本,而且单片的重锤60在工作人员上塔拆卸重锤60时提供了便捷。Referring to Figure 2, it is a schematic diagram of an exemplary stacked
具体的,参考图3,所述跳线架40包括塔头跳线架41和硬跳线架42,所述塔头跳线架41位于所述硬跳线架42的上方,所述绝缘子串50的一端与所述塔头跳线架41连接,另一端与所述硬跳线架42连接;所述重锤60与所述硬跳线架42通过螺栓连接,且位于所述硬跳线架42的底部。地线横担10设置有地线悬挂点,第一横担20和第二横担30分别设置有多个导线悬挂点。绝缘子采用耐张绝缘子,通过跳线串与塔杆两侧导线连接起来。相邻跳线绝缘子串50之间的夹角在30°至50°之间。所述重锤60的数量为四片,形状为长方体平板,采用铸铁材料,规格为400mm*600mm*30mm,可以根据需要选用不同规格的重锤60。相比图2所示中的跳线串的高度要减小300mm,底部水平单层设置的重锤60能减少150mm的高度,也就是一共降低了450mm。有效控制钻越塔总高度,减小跳线风偏。Specifically, referring to Fig. 3, the
最后说明的是,以上实施例仅用以说明本发明的技术方案而非限制,本领域普通技术人员对本发明的技术方案所做的其他修改或者等同替换,只要不脱离本发明技术方案的精神和范围,均应涵盖在本发明的权利要求范围当中。Finally, it is noted that the above embodiments are only used to illustrate the technical solution of the present invention without limitation, other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and spirit of the technical solution of the present invention All should be included in the scope of the claims of the present invention.
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JPH1066237A (en) * | 1996-08-23 | 1998-03-06 | Furukawa Electric Co Ltd:The | Jumper device |
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