CN105507655A - Construction method of power transmission line steel tube tower - Google Patents
Construction method of power transmission line steel tube tower Download PDFInfo
- Publication number
- CN105507655A CN105507655A CN201510885961.XA CN201510885961A CN105507655A CN 105507655 A CN105507655 A CN 105507655A CN 201510885961 A CN201510885961 A CN 201510885961A CN 105507655 A CN105507655 A CN 105507655A
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- steel tube
- tube tower
- line
- probe
- arm
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a construction method of a power transmission line steel tube tower. The method is characterized by including: selecting materials; manufacturing the steel tube tower, to be more specific, welding the selected materials into a set steel tube tower structure; performing weld inspection, to be more specific, placing a probe, connected with an ultrasonic detecting device, at the lateral end of a steel pipe with a butt-joint weld, allowing the probe to be matched with the outer diameter of the steel pipe, transmitting ultrasonic waves by the probe to cover the whole butt-joint weld when the ultrasonic detecting device transmits signals, and performing creeping wave testing to analyze the defects of the butt-joint weld; mounting the steel tube tower, to be more specific, using a line lifter to lift the main line of the steel tube tower to the mounting point of a suspension clamp after the power transmission line steel tube tower is erected, fixing the main line, removing the line lifter, connecting the branch line cross arm of the steel tube tower with a branch line through a strain clamp, and connecting and communicating the branch line of the steel tube tower with the main line of the steel tube tower through a connecting line.
Description
Technical field
The present invention relates to a kind of construction method of steel tube tower in electric transmission line.
Background technology
The steel tube tower in electric transmission line of existing current routine, it is made up of steel tube tower trunk and the some branch line cross-arms be arranged on trunk, construction method is all after steel tube tower group being stood, double back main line is opened strain insulator and crosses line, then the connection of branch line and main line is implemented, its general concrete implementation step is as follows: 1, front and back two backbone first will be lived lead anchor, needs to clamp with the wire rope wire clamp of 15 Φ 16, and lead anchor is on earth anchor; 2, hold wire with motor-driven grinding mill, then cut-off wire, pine is to ground; 3, hydraulic connecting strain clamp is made; 4, anchor wire rope etc. removed by stringing, hanging wire, front and back two backbone tower; 5, make wire jumper to connect; Required human and material resources are probably as follows: workman 16, motor-driven grinding mill 2, tense-lax line wire rope 2,1, hydraulic press and other.Under crane group can be used to found the prerequisite of steel tube tower, such power cut construction generally also needs 8 hours, under the overall situation that current power transmission and transformation reliability requirement improves day by day, will produce impact greatly to reliability data.
In application for a patent for invention numbers 201010564105.1, also disclose a kind of construction method, but it is relatively simple, does not provide effective and detect and the step such as selection, can not very smooth by construction progress.
Summary of the invention
Based on this, for the problems referred to above, the present invention proposes a kind of construction method of steel tube tower in electric transmission line, and construction method is improved more with reliable.
Technical scheme of the present invention is: a kind of construction method of steel tube tower in electric transmission line, is characterized in that, comprises the following steps:
Selection: select suitable steel tube tower material according to formula W=Wp+ (WF1CF+0.5 × WN1CN)+(WF2CF+0.5 × WN2CN), in formula, W is steel tube component optimal design target weight, WP is a steel pipe weight, WF1, WF2 are two ends these body weight of forged flange, WN1, WN2 are the whole bolt weight of two ends forged flange, and CF, CN are the cost ratio coefficient of forged flange body or bolt and steel pipe;
Manufacture steel tube tower: the steel tube tower structure material chosen being welded into setting;
Weld seam detection: the steel pipe side probe be connected with ultrasonic detection device being placed in butt weld, and probe and outer diameter of steel pipes are coincide, when ultrasonic detection device sends signal, described probe sends ultrasonic wave and covers whole butt weld, then carry out climbing ripple to detect, to the defect analysis of butt weld;
Steel tube tower is installed: after being erect by steel tube tower in electric transmission line, with line lifter the main line of steel tube tower be promoted to the mounting points of suspension clamp and fix, then withdrawing line lifter; The branch line cross-arm of steel tube tower is connected branch line by strain clamp; By a connecting line, the branch line of steel tube tower is connected conducting with the main line of steel tube tower.
In selection step, the weight of described steel tube component is described steel pipe weight, this body weight of forged flange at described two ends and the described bolt weight sum of 1/3rd quantity.
In manufacturing step, the steel tube tower in electric transmission line produced, comprise steel tube tower trunk, described steel tube tower trunk is provided with some branch line cross-arms, the tail end of described branch line cross-arm connects branch line by strain clamp, described steel tube tower trunk is also provided with main line cross-arm, described main line cross-arm and described branch line cross-arm interlaced arrangement, the load arm of described main line cross-arm is connected with the suspension clamp for hanging main line, the load arm of described main line cross-arm is provided with a pair suspension clamp, a pair described suspension clamp become angle be 40 ° " V " font arrange.
In weld seam detection step, probe is 5-9mm apart from the distance at butt weld center.Described probe is tandem ultrasonic probe.
Install in steel tube tower step, connecting line is insulating cord.
The invention has the beneficial effects as follows:
(1) testing before construction is fairly perfect and stable, and when constructing, external power off time is short, drops into line hardware material few, and constructor and the amount of labour used reduce, and onsite application Work tool reduces;
(2) weight of steel tube component is described steel pipe weight, this body weight of forged flange at described two ends and the described bolt weight sum of 1/3rd quantity, the cost after such selection and cost performance the highest;
(3) steel tube tower produced in manufacturing step, structure is simple, and is suitable for, and cost is low;
(4) probe is 5-9mm apart from the distance at butt weld center, the result of detection can be made very accurate, greatly improve the accuracy of detection;
(5) described probe is tandem ultrasonic probe, and such Detection results is very high, and the cost of probe is also on the low side;
(6) connecting line is insulating cord, can effectively prevent connecting line from conducting electricity like this, and ensures the safety installing and change connecting line.
Accompanying drawing explanation
Fig. 1 is the structural representation of the steel tube tower in electric transmission line be made in the embodiment of the present invention;
Description of reference numerals:
1, steel tube tower trunk, 2, main line cross-arm, 3, branch line cross-arm, 4, suspension clamp, 5, main line, 6, connecting line, 7, strain clamp, 8, branch line.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
Embodiment:
A construction method for steel tube tower in electric transmission line, is characterized in that, comprises the following steps:
Step one, selection: select suitable steel tube tower material according to formula W=Wp+ (WF1CF+0.5 × WN1CN)+(WF2CF+0.5 × WN2CN), in formula, W is steel tube component optimal design target weight, WP is a steel pipe weight, WF1, WF2 are two ends these body weight of forged flange, and WN1, WN2 are the whole bolt weight of two ends forged flange, and CF, CN are the cost ratio coefficient of forged flange body or bolt and steel pipe; The weight of described steel tube component is described steel pipe weight, this body weight of forged flange at described two ends and the described bolt weight sum of 1/3rd quantity.
Step 2, manufactures steel tube tower: the steel tube tower structure material chosen being welded into setting.As shown in Figure 1, the steel tube tower in electric transmission line produced, comprise steel tube tower trunk 1, described steel tube tower trunk 1 is provided with some branch line cross-arms 3, the tail end of described branch line cross-arm 3 connects branch line 8 by strain clamp 7, described steel tube tower trunk 1 is also provided with main line cross-arm 2, described main line cross-arm 2 and described branch line cross-arm 3 interlaced arrangement, the load arm of described main line cross-arm 2 is connected with the suspension clamp 4 for hanging main line 5, the load arm of described main line cross-arm 2 is provided with a pair suspension clamp 4, described a pair suspension clamp, 4 one-tenth angles are that " V " font of 40 ° is arranged.
Step 3, weld seam detection: the steel pipe side probe be connected with ultrasonic detection device being placed in butt weld, and probe and outer diameter of steel pipes are coincide, when ultrasonic detection device sends signal, described probe sends ultrasonic wave and covers whole butt weld, then carry out climbing ripple to detect, to the defect analysis of butt weld.Probe is 5-9mm apart from the distance at butt weld center.Described probe is tandem ultrasonic probe.
Step 4, installs steel tube tower: after being erect by steel tube tower in electric transmission line, with line lifter, the main line 5 of steel tube tower be promoted to the mounting points of suspension clamp 4 and fix, then withdrawing line lifter; The branch line cross-arm 3 of steel tube tower is connected branch line 8 by strain clamp 7; By a connecting line 6, the branch line 8 of steel tube tower is connected conducting with the main line 5 of steel tube tower.Connecting line 6 is insulating cord.
Construction method described in the embodiment of the present invention, the testing before construction is fairly perfect and stable, and when constructing, external power off time is short, drops into line hardware material few, and constructor and the amount of labour used reduce, and onsite application Work tool reduces.The weight of steel tube component is described steel pipe weight, this body weight of forged flange at described two ends and the described bolt weight sum of 1/3rd quantity, the cost after such selection and cost performance the highest.The steel tube tower produced in manufacturing step, structure is simple, and is suitable for, and cost is low.Probe is 5-9mm apart from the distance at butt weld center, the result of detection can be made very accurate, greatly improve the accuracy of detection.Described probe is tandem ultrasonic probe, and such Detection results is very high, and the cost of probe is also on the low side.Connecting line 6 is insulating cord, can effectively prevent connecting line 6 from conducting electricity like this, and ensures the safety installing and change connecting line 6.
The above embodiment only have expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (6)
1. a construction method for steel tube tower in electric transmission line, is characterized in that, comprises the following steps:
Selection: select suitable steel tube tower material according to formula W=Wp+ (WF1CF+0.5 × WN1CN)+(WF2CF+0.5 × WN2CN), in formula, W is steel tube component optimal design target weight, WP is a steel pipe weight, WF1, WF2 are two ends these body weight of forged flange, WN1, WN2 are the whole bolt weight of two ends forged flange, and CF, CN are the cost ratio coefficient of forged flange body or bolt and steel pipe;
Manufacture steel tube tower: the steel tube tower structure material chosen being welded into setting;
Weld seam detection: the steel pipe side probe be connected with ultrasonic detection device being placed in butt weld, and probe and outer diameter of steel pipes are coincide, when ultrasonic detection device sends signal, described probe sends ultrasonic wave and covers whole butt weld, then carry out climbing ripple to detect, to the defect analysis of butt weld;
Steel tube tower is installed: after being erect by steel tube tower in electric transmission line, with line lifter the main line of steel tube tower be promoted to the mounting points of suspension clamp and fix, then withdrawing line lifter; The branch line cross-arm of steel tube tower is connected branch line by strain clamp; By a connecting line, the branch line of steel tube tower is connected conducting with the main line of steel tube tower.
2. construction method according to claim 1, is characterized in that, in selection step, the weight of described steel tube component is described steel pipe weight, this body weight of forged flange at described two ends and the described bolt weight sum of 1/3rd quantity.
3. construction method according to claim 1, it is characterized in that, in manufacturing step, the steel tube tower in electric transmission line produced, comprise steel tube tower trunk, described steel tube tower trunk is provided with some branch line cross-arms, the tail end of described branch line cross-arm connects branch line by strain clamp, described steel tube tower trunk is also provided with main line cross-arm, described main line cross-arm and described branch line cross-arm interlaced arrangement, the load arm of described main line cross-arm is connected with the suspension clamp for hanging main line, the load arm of described main line cross-arm is provided with a pair suspension clamp, a pair described suspension clamp become angle be 40 ° " V " font arrange.
4. construction method according to claim 1, is characterized in that, in weld seam detection step, probe is 5-9mm apart from the distance at butt weld center.
5. construction method according to claim 4, is characterized in that, described probe is tandem ultrasonic probe.
6. construction method according to claim 1, is characterized in that, install in steel tube tower step, connecting line is insulating cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885961.XA CN105507655A (en) | 2015-12-03 | 2015-12-03 | Construction method of power transmission line steel tube tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885961.XA CN105507655A (en) | 2015-12-03 | 2015-12-03 | Construction method of power transmission line steel tube tower |
Publications (1)
| Publication Number | Publication Date |
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| CN105507655A true CN105507655A (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510885961.XA Pending CN105507655A (en) | 2015-12-03 | 2015-12-03 | Construction method of power transmission line steel tube tower |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793871A (en) * | 2009-12-30 | 2010-08-04 | 中国电力科学研究院 | Ultrasonic testing method for butt-jointed seam of steel tube tower in electric transmission line |
| CN102182343A (en) * | 2011-03-31 | 2011-09-14 | 哈尔滨工业大学 | Hollow steel tube concrete tower drum for wind generating set |
| CN102277998A (en) * | 2011-05-18 | 2011-12-14 | 中国电力科学研究院 | Angle steel opposite joint-type adapter of crossed oblique materials in power transmission line steel-tube tower |
| CN102477810A (en) * | 2010-11-29 | 2012-05-30 | 江苏省电力公司吴江市供电公司 | Steel pipe tower for transmission line and construction method thereof |
| US20130034450A1 (en) * | 2010-04-15 | 2013-02-07 | Repower Systems Se | Wind power plant with modular tower system |
| CN103321469A (en) * | 2013-06-20 | 2013-09-25 | 国家电网公司 | Material selection method for steel tube member of ultra-high voltage power transmission steel tube tower |
-
2015
- 2015-12-03 CN CN201510885961.XA patent/CN105507655A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793871A (en) * | 2009-12-30 | 2010-08-04 | 中国电力科学研究院 | Ultrasonic testing method for butt-jointed seam of steel tube tower in electric transmission line |
| US20130034450A1 (en) * | 2010-04-15 | 2013-02-07 | Repower Systems Se | Wind power plant with modular tower system |
| CN102477810A (en) * | 2010-11-29 | 2012-05-30 | 江苏省电力公司吴江市供电公司 | Steel pipe tower for transmission line and construction method thereof |
| CN102182343A (en) * | 2011-03-31 | 2011-09-14 | 哈尔滨工业大学 | Hollow steel tube concrete tower drum for wind generating set |
| CN102277998A (en) * | 2011-05-18 | 2011-12-14 | 中国电力科学研究院 | Angle steel opposite joint-type adapter of crossed oblique materials in power transmission line steel-tube tower |
| CN103321469A (en) * | 2013-06-20 | 2013-09-25 | 国家电网公司 | Material selection method for steel tube member of ultra-high voltage power transmission steel tube tower |
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Application publication date: 20160420 |