CN101805905A - Soil media inhibitor for grounded screen - Google Patents
Soil media inhibitor for grounded screen Download PDFInfo
- Publication number
- CN101805905A CN101805905A CN200910021119A CN200910021119A CN101805905A CN 101805905 A CN101805905 A CN 101805905A CN 200910021119 A CN200910021119 A CN 200910021119A CN 200910021119 A CN200910021119 A CN 200910021119A CN 101805905 A CN101805905 A CN 101805905A
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- inhibitor
- grounded screen
- soil media
- soil
- inhibiter
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- Prevention Of Electric Corrosion (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to a soil media inhibitor for a grounded screen. The inhibitor is prepared by blending bentonite serving as a carrier, and an organic inhibitor and an inorganic inhibitor which are environmental-friendly and undegradable. The corrosion inhibitor adopts a green formula, and has the advantages of no harm to the environment, simple preparation and use, environmental friendliness, high corrosion inhibition efficiency, lasting performance and the like; and the grounded screen can be kept in a stable state for a long time.
Description
Technical field
The invention belongs to the production technical field of anti-corrosive preparation, relate to and a kind ofly be used for preventing that grounding net of transformer substation from producing the corrosive inhibiter in soil.
Background technology
Grounding net of transformer substation is the indispensable facility that is used for working grounding, grounding for lightening, protective ground, also is the important step of guaranteeing the person, equipment, security of system, and it plays a part earial drainage and all presses at aspects such as anti-thunder and lightning, static and fault currents.Continuous increase along with the power system capacity; flow through earth mat to go into the ground short circuit electric current also more and more big; when accident occurs; if the ground net defectiveness, short-circuit current can't fully spread in soil, will cause the ground net current potential to raise; make the metal shell band high-voltage of grounding apparatus and jeopardize personnel safety and puncture the second protection device and insulate; even damage equipment, the expansion accident, it is stable to destroy network system.
In China, owing to resource, economic dispatch reason, the used material of ground net is mainly metal materials such as plain carbon stool, and this class material ground net heavy corrosion takes place easily imbedding underground back, causes that the cross section reduces, thermostability not enough, stake resistance increases.Because it is underground that ground net is embedded in, to the inspection of ground net, safeguard and overhaul transformation and need expend lot of manpower and material resources, operational difficulty, expense is huge.Raising along with the grid power transmission grade, the importance of electricity net safety stable is more obvious, solve the grounding network anti-corrosion problem, improve the corrosion resistance nature of ground net material, guarantee the stability of ground connection performance, prolong the work-ing life of ground net, reduce the power grid operation cost, become the problem of current power system security solution that economic production presses for.
In the prior art, add inhibiter and prevent that metallic corrosion from being a kind of very effective means, but its range of application only limits to the liquid and gas environment, for example matting, recirculated cooling water, machine is antirust, petroleum collection and chemical industry etc.Through the present patent application people retrieval, still find no the correlation technique report that is used for the inhibiter under the edatope at present.
The soil media complicated component causes the reason of ground net corrosion various, and mechanism is complicated, and ground net requires reach more than 30 years work-ing life.The inhibiter of liquid and gas only has a few hours in common work-ing life, can not satisfy the needs of long-effective corrosion.Experimental result shows that behind the annex solution phase medium inhibiter, what erosion rate had does not obviously reduce in soil, the appearance that has the phenomenon that increases of erosion rate.Therefore,, be necessary the persistent inhibiter of development environment close friend and effect, satisfy the requirement of grounding network anti-corrosion at grounding net of transformer substation.
Summary of the invention
The objective of the invention is to the problem that prior art exists is solved, so provide a kind of prescription configuration rationally, make easy to use, environmental friendliness and render a service persistent soil media inhibitor for grounded screen.
For achieving the above object, technical solution of the present invention is: this soil media inhibitor for grounded screen is carrier with the wilkinite, mix is with the organic inhibitor and the inorganic inhibitor of environmental friendliness and difficult degraded, and its each raw material of substance component shared weight percent in preparation is:
Wilkinite 70%～90%,
Organic inhibitor 5%～10%,
Inorganic inhibitor 5%～20%,
In the above-mentioned substance feed composition, said organic inhibitor is urotropine (vulkacit H) or tetrahydroglyoxaline (glyoxalidine) or BTA (benzotriazole), and said inorganic inhibitor is phosphoric acid salt (as tertiary sodium phosphate) or poly-phosphate (as sodium polyphosphate) or molybdate (as Sodium orthomolybdate) or zinc salt (as zinc sulfate).
The action principle of soil media inhibitor of the present invention is: wilkinite is a porous material, is carrier with it, holds relatively large organic inhibitor and inorganic inhibitor in the portion hole within it; Organic inhibitor by in its molecule-NH
2,-OH ,-SH ,-COOH isopolarity group and metallic surface form the coordination chelating membrane and play a protective role; the adding of inorganic inhibitor; by forming oxide film; suppress the metal ion process and make electrode potential reach effect such as passivation potential to slow down corrosion of metal; ground net there is provide protection, can makes ground net be in steady state for a long time.
In the practical application, the mechanism of action according to soil media inhibitor of the present invention, its protection process to ground net roughly can be divided into two stages: the fs, bury the protection initial stage of ground ground net, based on wilkinite, organic inhibitor provide protection, the provide protection of inorganic inhibitor is auxilliary; Subordinate phase is when organic density of corrosion inhibitor reduces, so that can not provide effective protection for metal the time, the inorganic inhibitor provide protection increases gradually.The action time of soil inhibiter is relevant with the amount of adding ground net inhibiter on every side to, and the amount of adding is big more, and the provide protection time length is long more.According to the difference of local soil characteristic in ground net place and climate characteristic, above-mentioned three phases time length length difference.
Compare with existing similar technology, advantage of the present invention is: 1. this inhibiter adopts green formula, and environment is not had harm, has eco-friendly advantage, meets the trend of inhibiter development; 2. the inhibition efficiency height of this inhibiter reaches as high as more than 87%; 3. inhibition is renderd a service lastingly.
The preparation method of this soil media inhibitor: take by weighing respective quality according to the shared weight percent of each component of soil inhibiter, adopt machinery or artificial mode to stir, add water then and stir into the use of mud shape.
The use-pattern of this soil media inhibitor: will be equipped with good soil media inhibitor and be wrapped in around ground net band steel or the copper cash, parcel thickness is not less than 200mm * 200mm, uses nature soil landfill then.
Embodiment
Among the present invention, Corrosion of Metallic Materials speed is measured by weight-loss method.
Embodiment:
Get a certain amount of inhibiter, it consists of: wilkinite+urotropine+sodium phosphate, and each component thing weight proportion is: 90: 5: 5, in inhibiter, put into and the metal testing plate of ground net with material, adjust humidity, act on 7 days down at 50 degrees centigrade.Carry out blank test with certain substation's soil simultaneously.The result shows: the blank test erosion rate is 19.9419g/m
2A is 2.4428g/m and adopt the test erosion rate of inhibiter
2A, inhibition efficiency reaches 87%.
Claims (3)
1. soil media inhibitor for grounded screen is characterized in that it is made up of the raw material of substance of following weight per-cent:
Wilkinite 70%～90%,
Organic inhibitor 5%～10%,
Inorganic inhibitor 5%～20%.
2. soil media inhibitor for grounded screen according to claim 1 is characterized in that said organic inhibitor is urotropine or tetrahydroglyoxaline or BTA.
3. soil media inhibitor for grounded screen according to claim 1 is characterized in that said inorganic inhibitor is phosphoric acid salt or poly-phosphate or molybdate or zinc salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910021119A CN101805905A (en) | 2009-02-16 | 2009-02-16 | Soil media inhibitor for grounded screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910021119A CN101805905A (en) | 2009-02-16 | 2009-02-16 | Soil media inhibitor for grounded screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101805905A true CN101805905A (en) | 2010-08-18 |
Family
ID=42607859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910021119A Pending CN101805905A (en) | 2009-02-16 | 2009-02-16 | Soil media inhibitor for grounded screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101805905A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103533A (en) * | 2012-11-13 | 2013-05-15 | 铜陵祥云消防科技有限责任公司 | Gas-phase antirust agent containing modified nanometer bentonite |
| CN103966610A (en) * | 2014-05-07 | 2014-08-06 | 上海电力学院 | Compound corrosion inhibiter and preparing method thereof |
-
2009
- 2009-02-16 CN CN200910021119A patent/CN101805905A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103533A (en) * | 2012-11-13 | 2013-05-15 | 铜陵祥云消防科技有限责任公司 | Gas-phase antirust agent containing modified nanometer bentonite |
| CN103103533B (en) * | 2012-11-13 | 2016-03-02 | 铜陵祥云消防科技有限责任公司 | A kind of containing the bentonitic vapor phase inhibitor of modified Nano |
| CN103966610A (en) * | 2014-05-07 | 2014-08-06 | 上海电力学院 | Compound corrosion inhibiter and preparing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100818 |