CN205067301U - Preferred experimental apparatus of ground connection and anticorrosive resistance -lowering material - Google Patents
Preferred experimental apparatus of ground connection and anticorrosive resistance -lowering material Download PDFInfo
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- CN205067301U CN205067301U CN201520830172.1U CN201520830172U CN205067301U CN 205067301 U CN205067301 U CN 205067301U CN 201520830172 U CN201520830172 U CN 201520830172U CN 205067301 U CN205067301 U CN 205067301U
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- 239000000463 material Substances 0.000 title claims abstract description 28
- 239000002689 soil Substances 0.000 claims abstract description 49
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 230000007797 corrosion Effects 0.000 claims abstract description 22
- 238000005260 corrosion Methods 0.000 claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 238000012803 optimization experiment Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 208000033999 Device damage Diseases 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model relates to a preferred experimental apparatus of ground connection and anticorrosive resistance -lowering material, including universal meter and eight experiment boxes, every experiment box traditional chinese clothing has sample soil, the system has two resistivity test mouths of being connected with the universal meter on the wall of experimental box side, it has pH regulating box and water tank to settle in the external side of experimental box, PH regulating box and water tank pass through pipeline and every experiment box intercommunication, still settle in the external side of experimental box and measure integrated device and corrosion current testing arrangement with the soil temperature of every experimental box body coupling, three have been placed respectively by the test block of test metal in the internal soil of every experimental box, wherein a slice is connected with the corrosion current testing arrangement electricity, other two are used for electronic speculum formula microscopic examination surface. The utility model discloses a different operating environment earthing device down provides the best material selection and optimizes the scheme, for whole electric power system's the favorable guarantee of fortune improvement steady in a long -term.
Description
Technical field
The utility model belongs to the optimization experiment device of grounded screen security status apparatus for evaluating technical field, particularly a kind of ground connection and corrosion-preventing and resistance-reducing material.
Background technology
Earthing device is the general name gone between under grounding body and ground connection, and its effect reduces stake resistance, accelerates diffusing, reduce earthy rising, thus reduce touch voltage and step voltage.Earthing device is work of electric power system, lightning protection, security needs, is the key link safeguarding power equipment operational reliability.Good ground connection should possess two pacing itemss: one is to provide alap stake resistance; Two is that grounded screen imbeds underground replacing difficulty, and earth conductor should have good corrosion resistance and can repeat by large fault current, and the life-span of earthing device should be not less than the life-span of ground major equipment.
Stake resistance determines primarily of the material of earth conductor, structure and soil resistivity, in high soil resistivity, the stake resistance of earthing device may exceed setting, particularly in mountain area, soil resistivity is general all at 1500 more than Ω m, stake resistance be dropped to regulation following very difficult; In low soil resistivity area, particularly in humidity and containing some solubility electrolyte as the place of the compositions such as acid, alkali, salt, because steel grounding body corrosion resistance is poor, these moisture and electrolyte can produce heavy corrosion to earthing device, corrosion can cause earthing device damage in various degree, also stake resistance will be caused to raise, and the long-term stability that greatly have impact on earthing device is run.For solution grounding resistance of transmission is higher and the problem of seriously corroded, corrosion-preventing and resistance-reducing material is widely used.Resistance-lowering material operating experience in actual earth work is enriched, and has been write into relevant criterion, but the resistance reducing effect of resistance-lowering material, stability and the etching problem to earth conductor, also in use display; The anticorrosion of current use is all as independent anticorrosion unit, does not act on, in high soil resistivity, cannot solve the problem that stake resistance is higher to reduction stake resistance; Novel corrosion-preventing and resistance-reducing material is just applied, and lacks relevant operating experience.
The long-term stability of earthed system runs the crucial selection being earthing material and corrosion-preventing and resistance-reducing material.But, current electric system is to the performance of earthing material and corrosion-preventing and resistance-reducing material and the certain codes and standards of applicable elements, if there is no comprehensive consideration when grounding design, unaccommodated earthing material and corrosion-preventing and resistance-reducing material are selected, the normal operation of earthing device will be affected, even cause accident, reduce the serviceable life of earthing device, or increase unnecessary investment.。
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and proposes the optimization experiment device of a kind of ground connection and corrosion-preventing and resistance-reducing material.
The utility model solves its technical matters and takes following technical scheme to realize:
The optimization experiment device of a kind of ground connection and corrosion-preventing and resistance-reducing material, comprise the identical experimental box body of left and right two row's structure and multimeter, often arrange experimental box body to be made up of four identical experimental box bodies of structure, the sample ambient soil of different regions is housed in each experimental box body, the sidewall of each experimental box body is shaped with top soil resistivity test port and underlying soil resistivity measurement mouth respectively, test is implemented after each soil resistivity test port is connected with multimeter, be mounted with for regulating the pH regulating box of soil pH value and for regulating the water tank of soil moisture content in the bottoms of two row's experimental box bodies, pH regulating box output channel and water tank output channel converge respectively by after pH variable valve and water regulating valve, pipeline after convergence is connected with operation valve, the conveyance conduit of operation valve is communicated with each experimental box body respectively by after the respective casing flow valve of each experimental box body, soil moisture measuring set apparatus for converting and corrosion current proving installation is mounted with between two row's experimental box bodies, soil moisture measuring set apparatus for converting is connected with each experimental box body respectively, gather the temperature of each experimental box body, corrosion current proving installation is connected with each experimental box body respectively, gather the corrosion current of each experimental box body, three tested metal testing plates are placed with respectively in the soil of each experimental box body inside, wherein a slice is electrically connected with experimental box body external corrosion current testing device, for corrosion current test provides data, two panels is used for Electronic Speculum formula microscopic examination surface in addition.
And the spacing of two the soil resistivity test ports in top and bottom is greater than the half of casing width, the average resistivity of soil in this experimental box body after the soil resistivity that two soil resistivity test ports are recorded by multimeter is average, more can be embodied.
And, in the bottom of each experimental box body, tapping valve is installed.
And the described three tested metal testing plates placed in the soil of each experimental box body inside are the identical structural metal test piece of homogeneity.
And, the conveyance conduit between UNICOM's two experimental box bodies is serially connected with Separation control valve.
Advantage of the present utility model and good effect are:
1, the utility model proposes best Material selec-tion prioritization scheme for the earthing device under different running environment.Earthing material and corrosion-preventing and resistance-reducing material can effectively reduce stake resistance for a long time, delay the corrosion of earthing material, have best economic technology to be worth, the earthing effect that earthing device is good in the life-span time limit can be ensured, for the long-term stability fortune of whole electric system improves favourable guarantee.
2, the selection aspect of the utility model device to system has theory directive significance, enables grounding design obtain best economical and technical benefit, for the safe and stable operation of earthed system and whole electric system provides safeguard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Implement to be further described to the utility model below in conjunction with accompanying drawing, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
The optimization experiment device of a kind of ground connection and corrosion-preventing and resistance-reducing material, as shown in Figure 1, comprise left and right two row's structure identical experiment casing and multimeter 1, often arrange experimental box body to be made up of four identical experimental box bodies 2 of structure, in each experimental box body, become to have the sample ambient soil of different regions, the sidewall of each experimental box body is shaped with top soil resistivity test port 3 and underlying soil resistivity measurement mouth 5 respectively, the spacing of two resistivity measurement mouths is greater than the half of casing width, the average resistivity of soil in this experimental box body more can be embodied after making its soil resistivity recorded by multimeter average, be mounted with for regulating the pH regulating box 18 of soil pH value and for regulating the water tank 14 of soil moisture content in the bottoms of two row's experimental box bodies, pH regulating box output channel and water tank output channel converge respectively by after pH variable valve 17 and water regulating valve 15, pipeline after convergence is connected with operation valve 16, the conveyance conduit of operation valve is communicated with each experimental box body respectively by each experimental box body casing flow valve 9 is separately rear, regulate pH value and the water percentage of soil in each experimental box body, soil moisture measuring set apparatus for converting 4 and corrosion current proving installation 11 is mounted with between two row's experimental box bodies, soil moisture measuring set apparatus for converting is connected with each experimental box body respectively, gather the temperature of each experimental box body, corrosion current proving installation is connected with each experimental box body respectively, gather the corrosion current of each experimental box body, three tested metal testing plates are placed with respectively in the soil of each experimental box body inside, wherein a slice is electrically connected with experimental box body external corrosion current testing device, for corrosion current test provides data, two panels is used for Electronic Speculum formula microscopic examination surface in addition,
In concrete enforcement of the present utility model, in the bottom of each experimental box body, tapping valve is installed, for discharging liquid unnecessary in casing.
In concrete enforcement of the present utility model, the described three tested metal testing plates placed in the soil of each experimental box body inside are the identical structural metal test piece of homogeneity.
In concrete enforcement of the present utility model, conveyance conduit between UNICOM's two experimental box bodies is serially connected with Separation control valve 10, the closing control of Separation control valve decreases the storage remaining in each change solution in conveyance conduit, and it is more accurate to make the control of experimental box body pH value.
In concrete enforcement of the present utility model, three tested metal testing plates use the carbon steel that galvanized steel (round steel, band steel, angle steel), copper (brass, red copper), stainless steel (TP304), copper cover steel and coated with conductive coating to test respectively, meanwhile, in sample ambient soil, Efficient bentonite antiseptic resistance-reducing agent or electroconductive cement is added with.
Claims (5)
1. the optimization experiment device of a ground connection and corrosion-preventing and resistance-reducing material, it is characterized in that: comprise the identical experimental box body of left and right two row's structure and multimeter, often arrange experimental box body to be made up of four identical experimental box bodies of structure, the sample ambient soil of different regions is housed in each experimental box body, the sidewall of each experimental box body is shaped with top soil resistivity test port and underlying soil resistivity measurement mouth respectively, test is implemented after each soil resistivity test port is connected with multimeter, be mounted with for regulating the pH regulating box of soil pH value and for regulating the water tank of soil moisture content in the bottoms of two row's experimental box bodies, pH regulating box output channel and water tank output channel converge respectively by after pH variable valve and water regulating valve, pipeline after convergence is connected with operation valve, the conveyance conduit of operation valve is communicated with each experimental box body respectively by after the respective casing flow valve of each experimental box body, soil moisture measuring set apparatus for converting and corrosion current proving installation is mounted with between two row's experimental box bodies, soil moisture measuring set apparatus for converting is connected with each experimental box body respectively, gather the temperature of each experimental box body, corrosion current proving installation is connected with each experimental box body respectively, gather the corrosion current of each experimental box body, three tested metal testing plates are placed with respectively in the soil of each experimental box body inside, wherein a slice is electrically connected with experimental box body external corrosion current testing device, for corrosion current test provides data, two panels is used for Electronic Speculum formula microscopic examination surface in addition.
2. the optimization experiment device of ground connection according to claim 1 and corrosion-preventing and resistance-reducing material, it is characterized in that: the spacing of two the soil resistivity test ports in top and bottom is greater than the half of casing width, after the soil resistivity that two soil resistivity test ports are recorded by multimeter is average, more can embody the average resistivity of soil in this experimental box body.
3. the optimization experiment device of ground connection according to claim 1 and corrosion-preventing and resistance-reducing material, is characterized in that: be provided with tapping valve in the bottom of each experimental box body.
4. the optimization experiment device of ground connection according to claim 1 and corrosion-preventing and resistance-reducing material, is characterized in that: the described three tested metal testing plates placed in the soil of each experimental box body inside are the identical structural metal test piece of homogeneity.
5. the optimization experiment device of ground connection according to claim 1 and corrosion-preventing and resistance-reducing material, is characterized in that: the conveyance conduit between UNICOM's two experimental box bodies is serially connected with Separation control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520830172.1U CN205067301U (en) | 2015-10-23 | 2015-10-23 | Preferred experimental apparatus of ground connection and anticorrosive resistance -lowering material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520830172.1U CN205067301U (en) | 2015-10-23 | 2015-10-23 | Preferred experimental apparatus of ground connection and anticorrosive resistance -lowering material |
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| CN205067301U true CN205067301U (en) | 2016-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166733A (en) * | 2021-11-12 | 2022-03-11 | 西南交通大学 | Grounding device characteristic evaluation method based on influence of high-corrosivity resistance reducing agent |
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2015
- 2015-10-23 CN CN201520830172.1U patent/CN205067301U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166733A (en) * | 2021-11-12 | 2022-03-11 | 西南交通大学 | Grounding device characteristic evaluation method based on influence of high-corrosivity resistance reducing agent |
| CN114166733B (en) * | 2021-11-12 | 2022-07-08 | 西南交通大学 | Grounding device characteristic evaluation method based on influence of high-corrosivity resistance reducing agent |
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