CN2833910Y - Soil resistivity improving pit for reducing earth resistance - Google Patents
Soil resistivity improving pit for reducing earth resistance Download PDFInfo
- Publication number
- CN2833910Y CN2833910Y CN 200520097779 CN200520097779U CN2833910Y CN 2833910 Y CN2833910 Y CN 2833910Y CN 200520097779 CN200520097779 CN 200520097779 CN 200520097779 U CN200520097779 U CN 200520097779U CN 2833910 Y CN2833910 Y CN 2833910Y
- Authority
- CN
- China
- Prior art keywords
- well
- earth
- resistance
- soil resistivity
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002689 soil Substances 0.000 title claims abstract description 23
- 230000008595 infiltration Effects 0.000 claims abstract description 9
- 238000001764 infiltration Methods 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
Abstract
A kind of soil resistivity that is used to reduce earth resistance improve well, the utility model relates to project of transmitting and converting electricity, lightning protection, earth work technical field.The purpose of this utility model is to provide a kind of well that improves of the soil resistivity that is used to reduce earth resistance, the soil resistivity of this reduction earth resistance improves well, comprise the well body, resistance layer is fallen, conduction circle copper rod cobblestone and infiltration hole are formed, the soil resistivity of described earth resistance improve well be arranged in earth mat around, well depth 〉=5m wherein, the shaft bottom diameter is greater than the well bore diameter, and filling percdation type soil resistance reducing agent, each improves well and is provided with consistent with well depth length two conduction copper rods and is connected with former earth mat by connecting lead, be equipped with cobblestone improving the well superficial layer, well body periphery is provided with infiltration Kong Bingyu well lid infiltration hole and communicates.The utility model is through evidence, and after this earth mat soil resistivity improved well connection earth mat, electric conductivity was good, has reduced whole ground network ground resistance.
Description
Technical field
The utility model relates to project of transmitting and converting electricity, lightning protection, earth work technical field, particularly a kind of soil resistivity that is used to reduce earth resistance improve well.
Background technology
As everyone knows, China requires regulation to the former earth mat design specification of transformer station, and satisfying the substation ground network resistance value must limit value≤and 0.5 ohm.But, the geology soil regime in the geographical position that transformer station is of living in is not quite similar, and the excursion of the resistivity under rainy district or shadow different situations also differs greatly, for example contain sand clay, the resistivity approximation of sand geology is at 300 Ω m, the resistivity approximation of granite geology is at 5000 Ω m, if during the present shadow of above-mentioned two kinds of example resistivity approximate tables, change in resistance can rise 2-4 doubly.Because at the construction field (site), the land area that is used to bury underground earth mat is limited, does not have outer possibility of drawing earth mat again, removes the traditional expansion of employing the ground network area, there is no better method.Therefore, be with the general resistivity of total soil at 200 to 600 Ω m, it is very difficult being reduced to rules regulation≤0.5 Ω m.
Summary of the invention
The purpose of this utility model is to provide a kind of well that improves of the soil resistivity that is used to reduce earth resistance, and the substation ground network land area is limited does not have outer contradiction of drawing earth mat again to solve, and finally reaches to overcome complex geological condition, the purpose of reduction soil resistivity.
Realize concrete technical scheme of the present utility model, the soil resistivity of this reduction earth resistance improves well, comprise the well body, resistance layer is fallen, conduction circle copper rod, cobblestone and infiltration hole are formed, the soil resistivity of described earth resistance improve well be arranged in earth mat around, well depth 〉=5m wherein, the shaft bottom diameter is greater than the well bore diameter, and filling percdation type soil resistance reducing agent, each improves well and is provided with consistent two conduction copper rods with well depth length and is connected with former earth mat by connecting lead, be equipped with cobblestone improving the well superficial layer, well body periphery is provided with infiltration Kong Bingyu well lid infiltration hole and communicates.
The utility model is through evidence, the soil resistivity of this earth resistance improves well, be not subjected to the restriction of substation ground network land area, can overcome complex geological condition, after connecting earth mat, electric conductivity is good, has reduced whole ground network ground resistance, can satisfy former earth mat design specification fully and require regulation, and the conductor corrosion resistance is good.
Description of drawings
Fig. 1 soil resistivity improves the well construction schematic diagram.
Fig. 2 electric resistance of soil improves well and former earth mat connection diagram.
1-improves well well body, 2-deep soil resistance reducing agent, 3-copper rod, the 4-hole of seeping water, 5-cobblestone, 6-well lid, 7-earth mat, 8-deep well grounding electrode, 9-conductive earthing module.
Embodiment
The utility model is when implementing, around earth mat, arrange that 4 are improved well projected depth 5m, shaft bottom diameter 1m, well bore diameter 0.6m, the shaft bottom adopts explosion system to split the agent of pressure injection SJ-3 percdation type resistance rate, two earth electrode copper rod Φ 16 in the well, its surface spraying SE-88 corrosion-resistant conductive coating, earth mat with improve the well earth electrode and be connected all to adopt the chamotte welding and add and use corrosion-resistant conductive coating.
Claims (1)
1, a kind of soil resistivity that is used to reduce earth resistance improve well, it comprises the well body, resistance layer is fallen, conduction circle copper rod, cobblestone and infiltration hole are formed, the soil resistivity that it is characterized in that described earth resistance improve well be arranged in earth mat around, well depth 〉=5m wherein, the shaft bottom diameter is greater than the well bore diameter, and filling percdation type soil resistance reducing agent, each improves well and is provided with consistent two conduction copper rods with well depth length and is connected with former earth mat by connecting lead, be equipped with cobblestone improving the well superficial layer, well body periphery is provided with infiltration Kong Bingyu well lid infiltration hole and communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520097779 CN2833910Y (en) | 2005-08-24 | 2005-08-24 | Soil resistivity improving pit for reducing earth resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520097779 CN2833910Y (en) | 2005-08-24 | 2005-08-24 | Soil resistivity improving pit for reducing earth resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2833910Y true CN2833910Y (en) | 2006-11-01 |
Family
ID=37198223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520097779 Expired - Lifetime CN2833910Y (en) | 2005-08-24 | 2005-08-24 | Soil resistivity improving pit for reducing earth resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2833910Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771203A (en) * | 2010-03-05 | 2010-07-07 | 陕西电力科学研究院 | Corrosion-preventing and resistance-reducing grounding module |
| CN101714735B (en) * | 2009-12-28 | 2011-11-09 | 中国瑞林工程技术有限公司 | Construction method of bio-bacterium grounding resistance reducer |
| CN102280726A (en) * | 2011-05-18 | 2011-12-14 | 湖南省电力公司科学研究院 | Method for reducing grounding resistance of grounding network with non-uniform soil resistivity |
| CN102904141A (en) * | 2012-10-30 | 2013-01-30 | 山东电力集团公司烟台供电公司 | Resistance reducing device for ground grid |
| CN103259104A (en) * | 2013-06-07 | 2013-08-21 | 国家电网公司 | Well group grounding net |
| CN105153712A (en) * | 2015-06-24 | 2015-12-16 | 中国科学院海洋研究所 | Method for handling AC interference of underground pipelines |
| CN105514630A (en) * | 2016-01-28 | 2016-04-20 | 国网山西省电力公司临汾供电公司 | Absorption type grounding device low in impedance |
| CN105552594A (en) * | 2016-01-30 | 2016-05-04 | 武汉大学 | Resistance reduction device and method for earth network of substation through water injection seepage |
| CN106877019A (en) * | 2017-02-15 | 2017-06-20 | 中铁二十局集团电务电化工程有限公司 | A kind of arid geology grounded screen and its construction and application method |
-
2005
- 2005-08-24 CN CN 200520097779 patent/CN2833910Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714735B (en) * | 2009-12-28 | 2011-11-09 | 中国瑞林工程技术有限公司 | Construction method of bio-bacterium grounding resistance reducer |
| CN101771203A (en) * | 2010-03-05 | 2010-07-07 | 陕西电力科学研究院 | Corrosion-preventing and resistance-reducing grounding module |
| CN102280726A (en) * | 2011-05-18 | 2011-12-14 | 湖南省电力公司科学研究院 | Method for reducing grounding resistance of grounding network with non-uniform soil resistivity |
| CN102904141A (en) * | 2012-10-30 | 2013-01-30 | 山东电力集团公司烟台供电公司 | Resistance reducing device for ground grid |
| CN103259104A (en) * | 2013-06-07 | 2013-08-21 | 国家电网公司 | Well group grounding net |
| CN103259104B (en) * | 2013-06-07 | 2015-10-28 | 国家电网公司 | A kind of gang of wells ground network |
| CN105153712A (en) * | 2015-06-24 | 2015-12-16 | 中国科学院海洋研究所 | Method for handling AC interference of underground pipelines |
| CN105514630A (en) * | 2016-01-28 | 2016-04-20 | 国网山西省电力公司临汾供电公司 | Absorption type grounding device low in impedance |
| CN105552594A (en) * | 2016-01-30 | 2016-05-04 | 武汉大学 | Resistance reduction device and method for earth network of substation through water injection seepage |
| CN106877019A (en) * | 2017-02-15 | 2017-06-20 | 中铁二十局集团电务电化工程有限公司 | A kind of arid geology grounded screen and its construction and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2833910Y (en) | Soil resistivity improving pit for reducing earth resistance | |
| CN201498612U (en) | Earthing device for reducing earth resistance of power transmission line by utilizing tower foundation | |
| CN201975524U (en) | Arrangement structure for lightning protection grounding device of power tower | |
| CN103219597B (en) | Grounding wire device | |
| CN201478471U (en) | Lightning-proof grounding grid structure for rocky areas | |
| CN201084842Y (en) | An alloy grounding device | |
| CN202308338U (en) | Double-layer structure grounding grid with characteristics of effectively improving electric potential distribution and reducing step voltage | |
| CN102856671B (en) | Environment-friendly leak-proof moisturizing grounding device and construction method | |
| CN111555051A (en) | Graphite-based grounding electrode for low-voltage power distribution, grounding device and construction method of grounding device | |
| CN205104914U (en) | Perpendicular type earthing pole arrangement structure of high voltage direct current | |
| CN203707350U (en) | Grounding device for improving tower grounding safety | |
| CN203277668U (en) | Well group grounding grid | |
| CN201478470U (en) | Structure of lightning-protection grounding network in karst area | |
| CN208127439U (en) | Light graphite drop resistance module | |
| CN102752762A (en) | Design method for reducing base station ground screen area by ground screen effective utilization in lightning stroke | |
| CN103259104B (en) | A kind of gang of wells ground network | |
| CN2457752Y (en) | Earthing device for high soil resistivity area | |
| CN204809570U (en) | Netted formula lightning grounding line of electric power | |
| CN204304011U (en) | Limited area, a kind of tower position is with concentrating perpendicular grounding device | |
| CN101640385B (en) | Structure of lightning protection grounding network in karst area and manufacturing method thereof | |
| CN202772276U (en) | Pole-tower lightning protection grounding device | |
| CN211605426U (en) | Conductive concrete module grounding grid | |
| CN203895619U (en) | Cathode moisture retaining and grounding device | |
| CN210074181U (en) | Low ground resistance ground structure | |
| CN103579786B (en) | A kind of module reducing grounded screen electric resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE NETWORK ELECTRIC POWER RESEARCH INSTITUTE Free format text: FORMER OWNER: WUHAN HIGH VOLTAGE RESEARCH INSTITUTE Effective date: 20100129 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100129 Address after: Nanjing City, Jiangsu Province, Nan Shui Road No. 8, zip code: 210003 Co-patentee after: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Patentee after: Power Science Research Institute of national network Address before: Luoyu Road, Hubei province Wuhan city Hongshan District No. 143, zip code: 430074 Patentee before: Wuhan High Voltage Inst. |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150824 Granted publication date: 20061101 |
|
| EXPY | Termination of patent right or utility model |