CN201533025U - Electric power grounding grid - Google Patents
Electric power grounding grid Download PDFInfo
- Publication number
- CN201533025U CN201533025U CN2009200486137U CN200920048613U CN201533025U CN 201533025 U CN201533025 U CN 201533025U CN 2009200486137 U CN2009200486137 U CN 2009200486137U CN 200920048613 U CN200920048613 U CN 200920048613U CN 201533025 U CN201533025 U CN 201533025U
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- stainless steel
- electric power
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- grid
- joint pipe
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Abstract
The utility model relates to an electric power grounding grid comprising a gridding grounding bar, wherein the grounding bar is electrically connected with an outgoing line and a grounding line; and grids of the grounding bar or the outer surface of the grounding line electrically connected with the grounding bar is a stainless steel layer which is internally and closely wrapped with steel bars. Due to the skin effect of currents, the grounding bar has good conductive property and corrosion resistant property; and crimping connection is adopted among the grids of the grounding bar as well as between the grids and the grounding line by stainless steel joint pipes, thus having good mechanical connection strength. The thickness of the stainless steel layer reaches only millimeter order of magnitude, so that the stainless steel steel-clad material with the structure has low price and excellent cost performance ratio.
Description
Technical field
The utility model relates to device power ground, relates in particular to electric power grounding grid.
Background technology
Alternative electric generation station or transformer station all are equipped with electric power grounding grid, it is made of the lead-out wire and the earth connection that are embedded in underground latticed ground connection row, be connected with ground connection row conduction, the other end of lead-out wire connects the earth terminal of power system device, and the other end of earth connection directly inserts underground.Ground connection row of the prior art uses steel or full copper product to make, and the former price is lower, and shortcoming is that decay resistance is relatively poor, and useful life is shorter; The latter's corrosion resisting property and conducting electricity very well, but price height, and copper resource-constrained.The applicant's application number is that a kind of technical scheme of the patent disclosure of 200520076243.X is, the exclusive table of ground connection is the copper layer, tight coated steel bar in the appearance copper layer.Though this structure provides cost savings, price is still higher, and copper is embedded in for a long time and is easy to take place oxidation after underground, thereby influences the mechanical strength and the conductivity of product.
The content of utility model
The applicant has carried out research at the above-mentioned shortcoming of prior art and has improved, and another kind of electric power grounding grid is provided, and its ground connection row's electric conductivity and decay resistance are better, and the bonding strength of ground connection row grid is higher, and price is more cheap.
The technical solution of the utility model is as follows:
A kind of electric power grounding grid, it comprises latticed ground connection row, and ground connection row conduction connects lead-out wire and earth connection, and the appearance of ground connection row's grid bar is a stainless steel layer, tight coated rod iron in the described stainless steel layer.
The appearance of the earth connection that is connected with described ground connection row conduction is a stainless steel layer, tight coated rod iron in the described stainless steel layer.
Described stainless steel layer thickness is at least 0.6 millimeter.
Connect by the stainless joint pipe between described ground connection row's the grid bar.
Described stainless joint pipe is stainless steel straight coupling pipe, stainless steel T junction pipe or stainless steel cruciform joint pipe.
Be connected by stainless steel T junction pipe between described grid bar and the earth connection.
Described stainless joint pipe is connected with the tight crimping of stainless steel layer of described grid bar or earth connection.
The place, right angle of described stainless steel T junction pipe and stainless steel cruciform joint pipe is connected with reinforcement.
Described stainless joint pipe and grid bar or earth connection are by being threaded, and the butt place of grid bar or earth connection and stainless joint pipe is provided with packing ring.
The inwall of stainless joint pipe pipe end is with the fit sealing cover, and described ground connection row's grid bar or earth connection are inserted in the described fit sealing cover; The outer wall of described stainless joint pipe pipe end tightens up cover by screw thread and and is connected, and the described inwall that tightens up cover has the conical surface, and described fit sealing overlaps and tightens up to fit between the cover clamping lobe is installed.
Useful technique effect of the present utility model is:
In the utility model ground connection row's grid bar by the appearance stainless steel layer with and interior coated rod iron constitute because electric current has kelvin effect, ground connection row has excellent conducting performance and decay resistance thus.Between ground connection row's the grid bar, and is connected or other structures connections by the crimping of stainless joint pipe between grid bar and the earth connection, thereby has the favorable mechanical bonding strength.Stainless steel layer thickness is the millimeter magnitude only, and so the stainless steel Baogang material of structure is cheap, electric conductivity and corrosion resistance and good, and the mechanical strength of junction is high again, has the good ratio of performance to price.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the cutaway view of Figure 1A-A direction.
Fig. 3 is the cutaway view of Figure 1B-B direction.
Fig. 4 is the cutaway view (crimping embodiment) of Fig. 1 C-C direction.
Fig. 5 is the longitudinal sectional view (crimping embodiment) of straight coupling.
Fig. 6 is T junction schematic diagram (crimping embodiment).
Fig. 7 is geneva cross schematic diagram (crimping embodiment).
Fig. 8 is the longitudinal sectional view (embodiment is threaded) of straight coupling.
Fig. 9 is the cutaway view (embodiment is threaded) of T junction.
Figure 10 is the cutaway view (embodiment is threaded) of cruciform joint.
Figure 11 is the cutaway view (the clamping sleeve structure connects embodiment) of Fig. 1 C-C direction.
Figure 12 is the cutaway view (the clamping sleeve structure connects embodiment) of straight coupling.
Figure 13 is the cutaway view (the clamping sleeve structure connects embodiment) of T junction.
Figure 14 is the cutaway view (the clamping sleeve structure connects embodiment) of cruciform joint.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
As shown in Figure 1, the utility model comprises the latticed ground connection row 3 of direction in length and breadth, ground connection row 3 connects conduction lead-out wire 2 and earth connection vertically downward 4 upwards, there is the joint 1 of lead-out wire the upper end of lead-out wire 2, be used to connect the earth terminal of power system device, lead-out wire 2 constitutes by the multiply stainless steel wire is stranded; The other end of earth connection 4 directly inserts underground.Structure such as Fig. 2, shown in Figure 3 of ground connection row 3 grid bar, its appearance is a stainless steel layer 9, tight coated rod iron 8 in the appearance stainless steel layer 9.The structure of the earth connection 4 that is connected with described ground connection row 3 conductions too, its appearance is a stainless steel layer 9, appearance stainless steel layer 9 interior tight coated rod irons 8.Described stainless steel layer 9 thickness are at least 0.6 millimeter, and present embodiment is 0.8mm.See Fig. 1, connect by the stainless joint pipe between ground connection row 3 the grid bar that the stainless joint pipe is stainless steel straight coupling pipe 6, stainless steel T junction pipe 7 or stainless steel cruciform joint pipe 5; Ground connection row 3 grid bar and earth connection 4 or be electrically connected between the lead-out wire 2 then is connected by stainless steel T junction pipe 7.Wherein adopt the crimping of conventional cold extrusion equipment to be connected between the electrical connection lead-out wire 2 of the stranded formation of multiply stainless steel wire and the stainless steel T junction pipe 7.
Embodiment 1: be connected by the crimping of stainless joint pipe between ground connection row 3 the grid bar or between grid bar and the earth connection 2.
Shown in Fig. 4～7, adopt the tight crimping of conventional cold extrusion equipment between stainless joint pipe (comprising stainless steel straight coupling pipe 10, stainless steel T junction pipe 13, stainless steel cruciform joint pipe 11) and ground connection row's 3 the grid bar or the stainless steel layer 9 of earth connection 4.The place, right angle of stainless steel T junction pipe 13 and stainless steel cruciform joint pipe 11 is connected with reinforcement 12 respectively, is used to improve the mechanical strength of stainless joint pipe.
Embodiment 2: be connected by the stainless joint gas thread between ground connection row 3 the grid bar or between grid bar and the earth connection 2.
Shown in Fig. 8～10, stainless joint pipe (comprising stainless steel straight coupling pipe 14, stainless steel T junction pipe 16, stainless steel cruciform joint pipe 17) and ground connection row 3 the grid bar or the rod iron 8 of earth connection 4 are by being threaded, ground connection row 3 grid bar or earth connection 4 are provided with packing ring 15 with the butt place of stainless joint pipe 14,16,17 respectively, and 9 is stainless steel layer in Fig. 8～10.
Embodiment 3: be connected by the clamping sleeve structure by the stainless joint pipe between ground connection row 3 the grid bar or between grid bar and the earth connection 2.
Shown in Figure 11～14, the inwall of stainless joint pipe (comprising stainless steel straight coupling pipe 21, stainless steel T junction pipe 22, stainless steel cruciform joint pipe 23) pipe end is with fit sealing cover 18, and described ground connection row's 3 grid bar or earth connection 2 are inserted in the fit sealing cover 18; The outer wall of described stainless joint pipe pipe end tightens up cover 20 by screw thread and and is connected, the described inwall that tightens up cover 20 has the conical surface, described fit sealing cover 18 is equipped with clamping lobe 19 with tightening up to fit between the cover 20, as seen from Figure 11, embodiment is equipped with 6 lobes and clamps lobe 19, and the tapering that the outer wall conical surface of clamping lobe 19 has is identical with the tapering that the conical surface inwall that tightens up cover 20 has.During installation, ground connection row 3 grid bar or earth connection 2 are inserted in the fit sealing cover 18, be inserted in the outside of fit sealing cover 18 again and clamp lobe 19 and tighten up cover 20, the cover screw thread of 20 terminations and being threaded of stainless joint pipe pipe end outer wall will be tightened up, clamp an end of lobe 19 and the pipe end butt of stainless joint pipe, tighten up cover 20 along with screwing, tighten up conical surface slippage on the outer wall conical surface that clamps lobe 19 of cover 20 inwalls, the fastening thus cover 20 that tightens up makes between ground connection row 3 the grid bar thus or is fastenedly connected by the stainless joint pipe between grid bar and the earth connection 2.
Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from spirit of the present utility model and design, all should think to be included within the protection range of the present utility model.
Claims (10)
1. electric power grounding grid, it comprises latticed ground connection row, ground connection row conduction connects lead-out wire and earth connection, it is characterized in that: the appearance of ground connection row's grid bar is a stainless steel layer, tight coated rod iron in the described stainless steel layer.
2. according to the described electric power grounding grid of claim 1, it is characterized in that: the appearance of the earth connection that is connected with described ground connection row conduction is a stainless steel layer, tight coated rod iron in the described stainless steel layer.
3. according to claim 1 or 2 described electric power grounding grids, it is characterized in that: described stainless steel layer thickness is at least 0.6 millimeter.
4. according to the described electric power grounding grid of claim 1, it is characterized in that: connect by the stainless joint pipe between described ground connection row's the grid bar.
5. according to the described electric power grounding grid of claim 4, it is characterized in that: described stainless joint pipe is stainless steel straight coupling pipe, stainless steel T junction pipe or stainless steel cruciform joint pipe.
6. according to the described electric power grounding grid of claim 1, it is characterized in that: be connected by stainless steel T junction pipe between described grid bar and the earth connection.
7. according to claim 4 or 5 or 6 described electric power grounding grids, it is characterized in that: described stainless joint pipe is connected with the tight crimping of stainless steel layer of described grid bar or earth connection.
8. according to the described electric power grounding grid of claim 5, it is characterized in that: the place, right angle of described stainless steel T junction pipe and stainless steel cruciform joint pipe is connected with reinforcement.
9. according to claim 4 or 5 or 6 described electric power grounding grids, it is characterized in that: described stainless joint pipe and grid bar or earth connection are by being threaded, and the butt place of grid bar or earth connection and stainless joint pipe is provided with packing ring.
10. according to claim 4 or 5 or 6 described electric power grounding grids, it is characterized in that: the inwall of stainless joint pipe pipe end is with the fit sealing cover, and described ground connection row's grid bar or earth connection are inserted in the described fit sealing cover; The outer wall of described stainless joint pipe pipe end tightens up cover by screw thread and and is connected, and the described inwall that tightens up cover has the conical surface, and described fit sealing overlaps and tightens up to fit between the cover clamping lobe is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200486137U CN201533025U (en) | 2009-10-16 | 2009-10-16 | Electric power grounding grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200486137U CN201533025U (en) | 2009-10-16 | 2009-10-16 | Electric power grounding grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201533025U true CN201533025U (en) | 2010-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200486137U Expired - Lifetime CN201533025U (en) | 2009-10-16 | 2009-10-16 | Electric power grounding grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201533025U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610934A (en) * | 2012-03-16 | 2012-07-25 | 中国十七冶集团有限公司 | Construction method and device for reducing ground resistance of wind driven generator |
| CN104425912A (en) * | 2013-09-10 | 2015-03-18 | Dmc能源有限公司 | Swaged connectors for a grounding grid |
| CN104868257A (en) * | 2015-05-14 | 2015-08-26 | 江苏亨通线缆科技有限公司 | Novel grounded copper rod and assemblies thereof |
| CN104868256A (en) * | 2015-05-08 | 2015-08-26 | 苏州立瓷电子技术有限公司 | Fast combined connection type grounding grid |
| CN105071059A (en) * | 2015-08-15 | 2015-11-18 | 宁夏中科天际防雷股份有限公司 | Metal grounding network |
| CN105244640A (en) * | 2015-11-10 | 2016-01-13 | 国家电网公司 | Flexible graphite grounding grid |
| CN105789928A (en) * | 2016-05-24 | 2016-07-20 | 国网山东省电力公司海阳市供电公司 | Electric power grounding grid |
| CN106450824A (en) * | 2016-10-19 | 2017-02-22 | 国核电力规划设计研究院 | Grounding grid |
| CN107611627A (en) * | 2017-08-23 | 2018-01-19 | 国家电网公司 | A kind of compression joint type cable conductor joint and preparation method with current balance function |
| CN107863615A (en) * | 2017-10-27 | 2018-03-30 | 镇江科胜电子科技有限公司 | A kind of novel electronic connector |
-
2009
- 2009-10-16 CN CN2009200486137U patent/CN201533025U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610934B (en) * | 2012-03-16 | 2014-02-12 | 中国十七冶集团有限公司 | Construction method for reducing ground resistance of wind driven generator |
| CN102610934A (en) * | 2012-03-16 | 2012-07-25 | 中国十七冶集团有限公司 | Construction method and device for reducing ground resistance of wind driven generator |
| CN104425912A (en) * | 2013-09-10 | 2015-03-18 | Dmc能源有限公司 | Swaged connectors for a grounding grid |
| CN104868256A (en) * | 2015-05-08 | 2015-08-26 | 苏州立瓷电子技术有限公司 | Fast combined connection type grounding grid |
| CN104868257A (en) * | 2015-05-14 | 2015-08-26 | 江苏亨通线缆科技有限公司 | Novel grounded copper rod and assemblies thereof |
| CN105071059B (en) * | 2015-08-15 | 2019-10-29 | 宁夏中科天际防雷股份有限公司 | Metal grounding network |
| CN105071059A (en) * | 2015-08-15 | 2015-11-18 | 宁夏中科天际防雷股份有限公司 | Metal grounding network |
| CN105244640A (en) * | 2015-11-10 | 2016-01-13 | 国家电网公司 | Flexible graphite grounding grid |
| CN105789928B (en) * | 2016-05-24 | 2018-06-19 | 广东圣辉电力工程有限公司 | A kind of electric power grounding grid |
| CN105789928A (en) * | 2016-05-24 | 2016-07-20 | 国网山东省电力公司海阳市供电公司 | Electric power grounding grid |
| CN106450824A (en) * | 2016-10-19 | 2017-02-22 | 国核电力规划设计研究院 | Grounding grid |
| CN106450824B (en) * | 2016-10-19 | 2018-12-18 | 国核电力规划设计研究院 | Grounded screen |
| CN107611627A (en) * | 2017-08-23 | 2018-01-19 | 国家电网公司 | A kind of compression joint type cable conductor joint and preparation method with current balance function |
| CN107863615A (en) * | 2017-10-27 | 2018-03-30 | 镇江科胜电子科技有限公司 | A kind of novel electronic connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |
|
| CX01 | Expiry of patent term |