CN204271278U - Reduce the device in pipeline station field earth resistance and prolongation earth electrode life-span - Google Patents
Reduce the device in pipeline station field earth resistance and prolongation earth electrode life-span Download PDFInfo
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- CN204271278U CN204271278U CN201420722276.6U CN201420722276U CN204271278U CN 204271278 U CN204271278 U CN 204271278U CN 201420722276 U CN201420722276 U CN 201420722276U CN 204271278 U CN204271278 U CN 204271278U
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Abstract
The utility model discloses a kind of device reducing pipeline station field earth resistance and extend the earth electrode life-span, belong to grounding technology field, field, oil and gas pipes station.Described device comprises metallic channel box, resistance reducing agent and horizontal grounding objects; Metallic channel box is the square structure be made up of metal side plate, metal top plate and metal base plate; Horizontal grounding objects is arranged in metallic channel box; Resistance reducing agent is filled in around horizontal grounding objects, and resistance reducing agent and horizontal grounding objects are enclosed in metallic channel box jointly; Metal top plate and metal side plate are provided with hole; Horizontal grounding objects passing hole goes between with external ground and is connected.The utility model is by being enclosed in metallic channel box by horizontal grounding objects and resistance reducing agent, ensure the safe operation of field, oil and gas pipes station grounding system, improve the fail safe of field, oil and gas pipes station grounding system, reliability and stability, extend the useful life of the grounding system of field, oil and gas pipes station, reduce the operating cost of field, oil and gas pipes station and the damage and pollution to environment.
Description
Technical field
The utility model relates to grounding technology field, field, oil and gas pipes station, particularly a kind of device reducing pipeline station field earth resistance and extend the earth electrode life-span.
Background technology
For the grounding system of field, oil and gas pipes station, the Hot-dip zinc-coated flat steel sheet of engineering many employings in the past as horizontal grounding objects, hot galvanizing angle steel as Grounding Grids.In high soil resistivity, sand-gravel geology or dry area, the design of this grounding system needs the length increasing horizontal grounding objects usually, and increases the quantity of Grounding Grids.When landform and surface area, station are limited, the method by increasing resistance reducing agent is needed to meet earth resistance requirement.
In high soil resistivity, sand-gravel geology or dry area, if field, oil and gas pipes station adopts the length increasing horizontal grounding objects, and the method for the quantity of increase Grounding Grids, when meeting earth resistance requirement, need field, oil and gas pipes station to have enough regions to meet the requirement of grounding system floor space, grounding system area increases.There is difference in the soil resistivity of different earth point, causes electric, the Instrumentation And Communication equipment of zones of different ground connection to there is potential difference.When grounding system releases lightning current or field, oil and gas pipes station power failure electric current, will certainly to cause electrically, the fault of Instrumentation And Communication equipment and damage.
When the grounding system area of field, oil and gas pipes station is restricted, if adopt the length increasing horizontal grounding objects, and the method for the quantity of increase Grounding Grids just can not meet the requirement of earth resistance, needs the method by increasing resistance reducing agent around earth electrode to meet earth resistance requirement.Earth resistance successful is reduced at the increase resistance reducing agent initial stage, but along with the prolongation of service time, due to resistance reducing agent solidification and desertification, and cause resistance reducing agent to be washed away by rainwater because of precipitation, run off, therefore the effect of reduction earth resistance can be made to lose efficacy gradually, cause earth resistance to increase thereupon, earth resistance can not meet the grounding requirement of field, oil and gas pipes station, like this when grounding system releases lightning current or field, oil and gas pipes station power failure electric current, by the time lengthening causing grounding system to discharge lightning current or power failure electric current, grounding system voltage raises, cause electrically, the fault of Instrumentation And Communication equipment and damage, affect the safe operation of field, oil and gas pipes station.In addition, along with the loss of resistance reducing agent, metallic ground body is exposed in soil, greatly accelerate the corrosion of metallic ground body, cause destruction and the fracture of metallic ground body, this can bring huge hidden danger to the safe operation of field, oil and gas pipes station, and increases the operating cost of oil and gas pipes station yard modification; Meanwhile, the resistance reducing agent of loss can produce area surroundings and underground water and pollute and destroy.
Utility model content
In order to the fail safe, the reliability and stability that solve field, the oil and gas pipes station grounding system existence that existing high soil resistivity, sand-gravel geology or dry area use are poor, and resistance reducing agent easily solidifies, runs off, the problems such as metallic ground body is perishable, the utility model provides a kind of device reducing pipeline station field earth resistance and extend the earth electrode life-span, comprises metallic channel box, resistance reducing agent and horizontal grounding objects; Described metallic channel box is the square structure be made up of metal side plate, metal top plate and metal base plate; Described horizontal grounding objects is arranged in described metallic channel box; Described resistance reducing agent is filled in around described horizontal grounding objects, and described resistance reducing agent and horizontal grounding objects are enclosed in described metallic channel box jointly; Described metal top plate and metal side plate are provided with hole; Described horizontal grounding objects is gone between with external ground by described hole and is connected.
Hole in described metal side plate is positioned at the top of described metal side plate.
Described horizontal grounding objects is Hot-dip zinc-coated flat steel sheet.
Described square structure is square or rectangular structure.
The device in the reduction pipeline station field earth resistance that the utility model provides and prolongation earth electrode life-span, by horizontal grounding objects and resistance reducing agent are enclosed in metallic channel box, thus ensured the safe operation of field, oil and gas pipes station grounding system, effectively improve the fail safe of field, oil and gas pipes station grounding system, reliability and stability, also extend the useful life of the grounding system of field, oil and gas pipes station simultaneously, reduce the operating cost of field, oil and gas pipes station and the damage and pollution to environment, be particularly useful for allly being positioned at high soil resistivity, the grounding system of the field, oil and gas pipes station in sand-gravel geology or dry area, for long oil/gas pipe line engineering, oil-gas field surface engineering, the grounding system of oil depot engineering has wide application space and good economic benefit.
Accompanying drawing explanation
Fig. 1 is the floor map of the device that the utility model embodiment provides;
Fig. 2 is the schematic perspective view of the metallic channel box that the utility model embodiment provides;
Fig. 3 is the structural representation of the metal top plate that the utility model embodiment provides;
Fig. 4 is the structural representation of the metal side plate that the utility model embodiment provides;
Fig. 5 is the structural representation of the metal base plate that the utility model embodiment provides;
Fig. 6 is the typical apply example schematic of the device that the utility model embodiment provides.
Embodiment
Below in conjunction with drawings and Examples, technical solutions of the utility model are further described.
See Fig. 1 to Fig. 5, the utility model embodiment provides a kind of device reducing pipeline station field earth resistance and extend the earth electrode life-span, comprises metallic channel box 1, resistance reducing agent 2 and horizontal grounding objects 3.Wherein, metallic channel box 1 is the square structure be made up of metal side plate 11, metal top plate 12 and metal base plate 13; Horizontal grounding objects 3 is arranged in described metallic channel box 1; Resistance reducing agent 2 is filled in horizontal grounding objects 3 around, and resistance reducing agent 2 and horizontal grounding objects 3 are enclosed in metallic channel box 1 jointly; Metal top plate 12 and metal side plate 11 are provided with hole; Horizontal grounding objects 3 passing hole goes between with external ground and is connected.
In concrete production practices, the material of metal side plate 11, metal top plate 12 and metal base plate 13 all adopts hot-dip galvanizing sheet steel, metal side plate 11, metal top plate 12 and metal base plate 13 are mutually permanently connected by welding realization, thus ensure that metallic channel box 1 has reliable fastness, also to carry out antirust and preservative treatment to metallic channel box, to extend the useful life of metallic channel box simultaneously.The thickness of the hot-dip galvanizing sheet steel that metallic channel box 1 uses and size should calculate according to earth resistance to be determined; According to the technical requirement of design, the square structure of metallic channel box 1 can be set as rectangle or square structure.Horizontal grounding objects 3 can adopt Hot-dip zinc-coated flat steel sheet, and Hot-dip zinc-coated flat steel sheet goes between with external ground, and (mainly comprising lightning protection downlead and electric instrument equipment ground lead-out wire) welds.
As shown in Figure 3 and Figure 4, the hole 121 in metal top plate 12 and the hole 111 in metal side plate 11 are all in uniform distribution, and hole 111 is positioned at the top of metal side plate 11.Under normal circumstances, providing holes 111 in two relative metal side plate 11 is only selected; The size in hole 121 and hole 111 should be determined according to the use amount of resistance reducing agent 2.It should be noted that, the arrangement mode of the concrete limiting hole of the present embodiment, as long as can facilitate welding of lightning protection downlead and electric instrument equipment ground lead-out wire and horizontal grounding objects, the hole of various distribution form all can realize the embodiment of the present invention.
Fig. 6 shows the utility model embodiment and takes turns at the second west to east gas pipeline project the typical apply that south-Turfan service main increases defeated engineering, wherein: metallic channel box 1 is imbedded in ground less than 9 by backfill soil 10, metallic channel box 1 is of a size of 400 × 400mm, the thickness of the hot-dip galvanizing sheet steel that metallic channel box 1 is used is 2mm, and the thickness of zinc coat is greater than 70 μm; Horizontal grounding objects 3 adopts the Hot-dip zinc-coated flat steel sheet of 50 × 5mm, and the thickness of zinc coat is greater than 70 μm, and Hot-dip zinc-coated flat steel sheet should be imbedded in below frozen soil layer, and buried depth is-1.3m; Hole in metal side plate and the hole in metal top plate are the hole of Φ 10mm, and institute is porose to be evenly distributed, and the most lower of the hole in metal side plate is not more than 50mm along distance side plate upper edge; Resistance reducing agent 2 is the physics resistance reducing agent be made up of bentonite, curing agent, lubricant and additional gelling thing, guarantees that electric conductor in the physics resistance reducing agent hole on metallic channel box is suitably permeated in soil towards periphery, prevents again physics resistance reducing agent to run off simultaneously.By the application of above-mentioned example, significantly reduce the earth resistance of the field, oil and gas pipes station in high soil resistivity, sand-gravel geology or dry area, and extend the useful life of horizontal grounding objects, greatly save the expense of field, oil and gas pipes station grounding reconstruction, prevent a large amount of losses of resistance reducing agent simultaneously, reduce pollution and destruction that area surroundings and underground water are produced.The present embodiment can make the construction of field, oil and gas pipes station grounding system from now on more be tending towards standardization, modularization, improve the fail safe of field, oil and gas pipes station grounding system, reliability, stability, decrease working procedure and material, facilitate operation maintenance, reduce investment and the operating expenses of equipment, be particularly useful for allly being positioned at high soil resistivity, the grounding system of the field, oil and gas pipes station in sand-gravel geology or dry area, for long oil/gas pipe line engineering, oil-gas field surface engineering, the grounding system of oil depot engineering has wide application space and good economic benefit.
After the utility model embodiment is applied to the grounding system of field, oil and gas pipes station, following advantage can be realized:
1) after grounding system adopts metallic channel box, resistance reducing agent is wrapped in around horizontal grounding objects by metallic channel box tightly, and with soil horizon compact siro spinning technology, define a larger-diameter electric conductor, significantly reduce grounding resistance, decrease the length of horizontal grounding objects, decrease the earth potential difference of electric, the Instrumentation And Communication equipment caused because horizontal grounding objects is long, improve the safety and reliability of field, station grounding system.
2) resistance reducing agent is arranged in metallic channel box, effectively play the water retaining function of resistance reducing agent, absorbed the moisture of soil by hole in metal top plate and metal side plate, prevent resistance reducing agent washed out by rainwater or run off, reduce pollution and destruction that resistance reducing agent produces area surroundings and underground water.Simultaneously, electric conductor in resistance reducing agent is suitably permeated in soil towards periphery by the hole in metal top plate and metal side plate, dendritic ennation is there is in the earth, produce dendritic effects, its internal layer is closely connected with horizontal grounding objects, and its skin and soil are closely connected, thus greatly reduce the contact resistance of horizontal grounding objects and soil.
3) resistance reducing agent is arranged in metallic channel box, while preventing resistance reducing agent to run off, play to maximum efficiency the anti-corrosion function of resistance reducing agent, make horizontal grounding objects (Hot-dip zinc-coated flat steel sheet) and there is corrosive soil to completely cut off, extend the useful life of horizontal grounding objects, reduce the cost that field, oil and gas pipes station is run.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. reduce the device in pipeline station field earth resistance and prolongation earth electrode life-span, it is characterized in that, comprise metallic channel box, resistance reducing agent and horizontal grounding objects; Described metallic channel box is the square structure be made up of metal side plate, metal top plate and metal base plate; Described horizontal grounding objects is arranged in described metallic channel box; Described resistance reducing agent is filled in around described horizontal grounding objects, and described resistance reducing agent and horizontal grounding objects are enclosed in described metallic channel box jointly; Described metal top plate and metal side plate are provided with hole; Described horizontal grounding objects is gone between with external ground by described hole and is connected.
2. the device reducing pipeline station field earth resistance and extend the earth electrode life-span as claimed in claim 1, it is characterized in that, the hole in described metal side plate is positioned at the top of described metal side plate.
3. the device reducing pipeline station field earth resistance and extend the earth electrode life-span as claimed in claim 1 or 2, it is characterized in that, described horizontal grounding objects is Hot-dip zinc-coated flat steel sheet.
4. the device reducing pipeline station field earth resistance and extend the earth electrode life-span as claimed in claim 1 or 2, it is characterized in that, described square structure is square or rectangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722276.6U CN204271278U (en) | 2014-11-26 | 2014-11-26 | Reduce the device in pipeline station field earth resistance and prolongation earth electrode life-span |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722276.6U CN204271278U (en) | 2014-11-26 | 2014-11-26 | Reduce the device in pipeline station field earth resistance and prolongation earth electrode life-span |
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| CN204271278U true CN204271278U (en) | 2015-04-15 |
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| CN201420722276.6U Active CN204271278U (en) | 2014-11-26 | 2014-11-26 | Reduce the device in pipeline station field earth resistance and prolongation earth electrode life-span |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505605A (en) * | 2014-11-26 | 2015-04-08 | 中国石油天然气集团公司 | Apparatus and for reducing earthing resistance of pipeline station field and prolonging life of earthing body, and method |
-
2014
- 2014-11-26 CN CN201420722276.6U patent/CN204271278U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505605A (en) * | 2014-11-26 | 2015-04-08 | 中国石油天然气集团公司 | Apparatus and for reducing earthing resistance of pipeline station field and prolonging life of earthing body, and method |
| CN104505605B (en) * | 2014-11-26 | 2018-03-20 | 中国石油天然气集团公司 | Reduce pipeline yard grounding resistance and extend the device and method of ground connection body life time |
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