CN104218334A - Grounding resistance reduction agent and method for lowering corrosion on grounding body due to grounding resistance reduction agent - Google Patents
Grounding resistance reduction agent and method for lowering corrosion on grounding body due to grounding resistance reduction agent Download PDFInfo
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- CN104218334A CN104218334A CN201410403318.4A CN201410403318A CN104218334A CN 104218334 A CN104218334 A CN 104218334A CN 201410403318 A CN201410403318 A CN 201410403318A CN 104218334 A CN104218334 A CN 104218334A
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Abstract
The invention relates to the technology of grounding for lightening, in particular to a grounding resistance reduction agent and a method for lowering corrosion on a grounding body due to the grounding resistance reduction agent. The method includes preparation of a long-acting anticorrosive agent, preparation of the grounding resistance reduction agent and mixing of the long-acting anticorrosive agent in the grounding resistance reduction agent. The preparation of the long-acting anticorrosive agent includes the steps: firstly, selecting, by weight, 20-30 parts of ammonium carbonate, 50-60 parts of powdered activated carbon and 50-60 parts of bentonite not less than 400 meshes; secondly, feeding the ammonium carbonate, the powdered activated carbon and the bentonite in the proportion into a mixer for blending and mixing, adsorbing the ammonium carbonate with the powdered activated carbon and coating the ammonium carbonate with the bentonite to obtain the long-acting anticorrosive agent. The long-acting anticorrosive agent has two major features of alkalescence and slow release and can keep long-acting anticorrosive effect, thereby being initiative. The grounding resistance reduction agent is remarkable in resistance reduction effect, environment friendly, convenient to use and low in cost.
Description
Technical field
The present invention relates to Lightning protection, espespecially a kind ofly reduce the method and grounded resistance reducing agent thereof that grounded resistance reducing agent corrodes earth electrode.
Background technology
Grounding system is the important step of whole lightning-protection system, and sky net and earth mat couple together by it, the overall earial drainage rate improving ground network.The key technical indexes of lightning protection earthing system is earth resistance, and earth resistance is the smaller the better.In order to reduce earth resistance, generally use resistance reducing agent.The function of resistance reducing agent is exactly the earth resistance for reducing various earthing device.At present, resistance reducing agent is made up of multiple components, as wherein contained fine graphite, bentonite, curing agent, lubricant, electroconductive cement etc., thus becomes a kind of good electric conductor.It is used between metallic ground body and soil, on the one hand can with metallic ground body close contact, form enough large current flowing face; On the other hand it can soil permeability towards periphery, reduces surrounding soil resistivity, forms the mild low resistance region of a change around earth electrode.
But due to also conductive strong salinity (silicate, aluminosilicate etc.) in resistance reducing agent, comparatively large to the corrosivity of metallic ground body, the time is longer, constantly increases the corrosivity of metallic ground body.Cause the electric conductivity of metallic ground body constantly to reduce, lightning protection effect declines.In order to avoid lightning strike accident, need to reinstall, again construct, human and material resources, financial resources consumption are large.The resistance reducing effect of having constructed in a short time only considered by the resistance reducing agent of current use, do not consider its chronicity, long-lasting, the feature of environmental protection.
A kind of method reducing grounded resistance reducing agent and earth electrode is corroded of market demand, thus obtain a kind of environmental friendly, anti-corrosive long-lasting grounding resistance reducing agent, cause the corrosion improved metallic ground body, antiseptic effect improves, and earth electrode extends useful life greatly.
Summary of the invention
The object of the invention is to overcome the existing grounded resistance reducing agent deficiency larger to earth electrode corrosivity, provide a kind of and reduce the method and grounded resistance reducing agent thereof that grounded resistance reducing agent corrodes earth electrode.Use the method, the corrosion of grounded resistance reducing agent to metallic ground body can be improved, and have long-lasting.
For this reason, a kind of grounded resistance reducing agent that reduces of the present invention adopts following technical proposals to the method that earth electrode corrodes:
Reduce the method that grounded resistance reducing agent corrodes earth electrode, comprise the preparation of long life anti corrosion agent, the preparation of grounded resistance reducing agent and mixture long life anti corrosion agent in grounded resistance reducing agent;
The preparation of long life anti corrosion agent comprises the following steps:
The first step, chooses ammonium carbonate, Powdered Activated Carbon and bentonite, and by weight, ammonium carbonate is 20 ~ 30 parts, Powdered Activated Carbon 50 ~ 60 parts and bentonite 50 ~ 60 parts; Bentonitic order degree is not less than 400 orders;
Second step, sends into the ammonium carbonate of said ratio, Powdered Activated Carbon and bentonite in mixer and is uniformly mixed, and ammonium carbonate is coated by bentonite by powder electroless plating, just obtained long life anti corrosion agent;
The preparation of grounded resistance reducing agent: its formula is, by weight, 30 ~ 40 parts, pulverized coal ash, 15 ~ 20 parts, saltcake, 8 ~ 10 parts, calcium carbonate, wherein, the order degree of calcium carbonate is not less than 200 orders; The pulverized coal ash of described deal, saltcake and calcium carbonate are sent in mixer and is uniformly mixed, just obtained grounded resistance reducing agent;
Mixture long life anti corrosion agent in grounded resistance reducing agent, by weight, described long life anti corrosion agent is 8 ~ 10 parts, and described grounded resistance reducing agent is 80 ~ 90 parts, the long life anti corrosion agent of described deal and the grounded resistance reducing agent of described deal is sent in mixer and is uniformly mixed.
The technical scheme of grounded resistance reducing agent of the present invention, the above-mentioned a kind of grounded resistance reducing agent that reduces of this grounded resistance reducing agent application obtains the method that earth electrode corrodes.
Working mechanism of the present invention is:
In described long life anti corrosion agent, ammonium carbonate makes resistance reducing agent remain on alkalescent state, can effectively improve resistance reducing agent to corrosion of metal.Ammonium carbonate is coated by bentonite by powder electroless plating, slow releasing, thus keeps the long-lasting of anticorrosion ability.
Described grounded resistance reducing agent, in its component, the chemical composition of pulverized coal ash based on aluminosilicate, property stablize, can not with metal generation chemical reaction, resistivity is low, is good electric conducting material; Meanwhile, pulverized coal ash is equivalent to the cement of 200 labels, plays again the effect of cement, is combined in metallic ground surface securely, thus reaches minimizing contact resistance, forms good electric conductor.Calcium carbonate is good soil affinity agent, described grounded resistance reducing agent can be contacted with the earth more fully, reduce ground resistivity.Saltcake (anhydrous sodium sulfate) is water-loss reducer, protects the loss of moisture well, ensures that resistance reducing agent remains on low resistivity state for a long time.
Beneficial effect of the present invention is:
One, the long life anti corrosion agent that the present invention releases has initiative, and long life anti corrosion agent has alkalescent and slowly-releasing two major features, and ammonium carbonate makes resistance reducing agent remain on alkalescent state, can effectively improve resistance reducing agent to corrosion of metal.Ammonium carbonate is coated by bentonite by powder electroless plating, slow releasing, thus keeps the long-lasting of anticorrosion ability.
Its two, long life anti corrosion agent of the present invention and grounded resistance reducing agent not containing toxic element, and are conducive to environmental protect, reach environment-friendly function.The utilization of pulverized coal ash can be promoted simultaneously.
Its three, overall economics is profitable, and construction procedure is simple, easy to use; Pulverized coal ash is electric conducting material, is again cement, reduces costs, and greatly improve construction schedule.
Its four, grounded resistance reducing agent viscosity of the present invention is comparatively large, compact structure, having on enough infiltrative basis, not easily with rain water runoff, so the impact of climate factor is less, have long-lasting, and resistance reducing effect is remarkable; Can effectively prevent thunder and lightning to building and equipment harm chronically.
Embodiment
Below, the specific embodiment of the present invention is introduced.
Embodiment one
Reduce the method that grounded resistance reducing agent corrodes earth electrode, comprise the preparation of long life anti corrosion agent, the preparation of grounded resistance reducing agent and mixture long life anti corrosion agent in grounded resistance reducing agent;
The preparation of long life anti corrosion agent comprises the following steps:
The first step, chooses ammonium carbonate, Powdered Activated Carbon and bentonite, and by weight, ammonium carbonate is 20 parts, Powdered Activated Carbon 50 parts and bentonite 50 parts; Bentonitic order degree is not less than 400 orders;
Second step, sends into the ammonium carbonate of said ratio, Powdered Activated Carbon and bentonite in mixer and is uniformly mixed, and ammonium carbonate is coated by bentonite by powder electroless plating, just obtained long life anti corrosion agent;
The preparation of grounded resistance reducing agent: its formula is, by weight, 30 parts, pulverized coal ash, 15 parts, saltcake, 8 parts, calcium carbonate, wherein, the order degree of calcium carbonate is not less than 200 orders; The pulverized coal ash of described deal, saltcake and calcium carbonate are sent in mixer and is uniformly mixed, just obtained grounded resistance reducing agent;
Mixture long life anti corrosion agent in grounded resistance reducing agent, by weight, described long life anti corrosion agent is 8 parts, and described grounded resistance reducing agent is 80 parts, the long life anti corrosion agent of described deal and the grounded resistance reducing agent of described deal is sent in mixer and is uniformly mixed.
Long life anti corrosion agent anticorrosion ability test experiments described in the present embodiment is introduced:
Control group: method---in the lab, copper core (diameter 1 millimeter) is embedded in the grounded resistance reducing agent (i.e. non-mixture long life anti corrosion agent in grounded resistance reducing agent) described in the present embodiment, after 3 months, grounded resistance reducing agent is peeled off, take out copper core, examine under a microscope the corrosion condition of copper wicking surface.Result---find that there is fragmentary peacock green (basic copper carbonate).
The present embodiment: method---in the lab, copper core (diameter 1 millimeter) is embedded in mixture long life anti corrosion agent person in the grounded resistance reducing agent described in the present embodiment, after 3 months, grounded resistance reducing agent is peeled off, take out copper core, examine under a microscope the corrosion condition of copper wicking surface.Result---do not find peacock green (basic copper carbonate) and other corrosion phenomenon.
Visible, the present embodiment is compared with control group, and the Corrosion Protection of the grounded resistance reducing agent of mixture long life anti corrosion agent obviously improves.
Embodiment two
Reduce the method that grounded resistance reducing agent corrodes earth electrode, comprise the preparation of long life anti corrosion agent, the preparation of grounded resistance reducing agent and mixture long life anti corrosion agent in grounded resistance reducing agent;
The preparation of long life anti corrosion agent comprises the following steps:
The first step, chooses ammonium carbonate, Powdered Activated Carbon and bentonite, and by weight, ammonium carbonate is 25 parts, Powdered Activated Carbon 55 parts and bentonite 55 parts; Bentonitic order degree is not less than 400 orders;
Second step, sends into the ammonium carbonate of said ratio, Powdered Activated Carbon and bentonite in mixer and is uniformly mixed, and ammonium carbonate is coated by bentonite by powder electroless plating, just obtained long life anti corrosion agent;
The preparation of grounded resistance reducing agent: its formula is, by weight, 35 parts, pulverized coal ash, 18 parts, saltcake, 9 parts, calcium carbonate, wherein, the order degree of calcium carbonate is not less than 200 orders; The pulverized coal ash of described deal, saltcake and calcium carbonate are sent in mixer and is uniformly mixed, just obtained grounded resistance reducing agent;
Mixture long life anti corrosion agent in grounded resistance reducing agent, by weight, described long life anti corrosion agent is 9 parts, and described grounded resistance reducing agent is 85 parts, the long life anti corrosion agent of described deal and the grounded resistance reducing agent of described deal is sent in mixer and is uniformly mixed.
Long life anti corrosion agent anticorrosion ability test experiments described in the present embodiment is introduced:
Control group: method---in the lab, copper core (diameter 1 millimeter) is embedded in the grounded resistance reducing agent (i.e. non-mixture long life anti corrosion agent in grounded resistance reducing agent) described in the present embodiment, after 3 months, grounded resistance reducing agent is peeled off, take out copper core, examine under a microscope the corrosion condition of copper wicking surface.Result---find that there is fragmentary peacock green (basic copper carbonate).
The present embodiment: method---in the lab, copper core (diameter 1 millimeter) is embedded in mixture long life anti corrosion agent person in the grounded resistance reducing agent described in the present embodiment, after 3 months, grounded resistance reducing agent is peeled off, take out copper core, examine under a microscope the corrosion condition of copper wicking surface.Result---do not find peacock green (basic copper carbonate) and other corrosion phenomenon.
Visible, the present embodiment is compared with control group, and the Corrosion Protection of the grounded resistance reducing agent of mixture long life anti corrosion agent obviously improves.
Embodiment three
Reduce the method that grounded resistance reducing agent corrodes earth electrode, comprise the preparation of long life anti corrosion agent, the preparation of grounded resistance reducing agent and mixture long life anti corrosion agent in grounded resistance reducing agent;
The preparation of long life anti corrosion agent comprises the following steps:
The first step, chooses ammonium carbonate, Powdered Activated Carbon and bentonite, and by weight, ammonium carbonate is 30 parts, Powdered Activated Carbon 60 parts and bentonite 60 parts; Bentonitic order degree is not less than 400 orders;
Second step, sends into the ammonium carbonate of said ratio, Powdered Activated Carbon and bentonite in mixer and is uniformly mixed, and ammonium carbonate is coated by bentonite by powder electroless plating, just obtained long life anti corrosion agent;
The preparation of grounded resistance reducing agent: its formula is, by weight, 40 parts, pulverized coal ash, 20 parts, saltcake, 10 parts, calcium carbonate, wherein, the order degree of calcium carbonate is not less than 200 orders; The pulverized coal ash of described deal, saltcake and calcium carbonate are sent in mixer and is uniformly mixed, just obtained grounded resistance reducing agent;
Mixture long life anti corrosion agent in grounded resistance reducing agent, by weight, described long life anti corrosion agent is 9 parts, and described grounded resistance reducing agent is 85 parts, the long life anti corrosion agent of described deal and the grounded resistance reducing agent of described deal is sent in mixer and is uniformly mixed.
Long life anti corrosion agent anticorrosion ability test experiments described in the present embodiment is introduced:
Control group: method---in the lab, copper core (diameter 1 millimeter) is embedded in the grounded resistance reducing agent (i.e. non-mixture long life anti corrosion agent in grounded resistance reducing agent) described in the present embodiment, after 3 months, grounded resistance reducing agent is peeled off, take out copper core, examine under a microscope the corrosion condition of copper wicking surface.Result---find that there is fragmentary peacock green (basic copper carbonate).
The present embodiment: method---in the lab, copper core (diameter 1 millimeter) is embedded in mixture long life anti corrosion agent person in the grounded resistance reducing agent described in the present embodiment, after 3 months, grounded resistance reducing agent is peeled off, take out copper core, examine under a microscope the corrosion condition of copper wicking surface.Result---do not find peacock green (basic copper carbonate) and other corrosion phenomenon.
Visible, the present embodiment is compared with control group, and the Corrosion Protection of the grounded resistance reducing agent of mixture long life anti corrosion agent obviously improves.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, every above embodiment is done according to technical spirit of the present invention any amendment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (2)
1. reduce the method that grounded resistance reducing agent corrodes earth electrode, it is characterized in that, comprise the preparation of long life anti corrosion agent, the preparation of grounded resistance reducing agent and mixture long life anti corrosion agent in grounded resistance reducing agent;
The preparation of long life anti corrosion agent comprises the following steps:
The first step, chooses ammonium carbonate, Powdered Activated Carbon and bentonite, and by weight, ammonium carbonate is 20 ~ 30 parts, Powdered Activated Carbon 50 ~ 60 parts and bentonite 50 ~ 60 parts; Bentonitic order degree is not less than 400 orders;
Second step, sends into the ammonium carbonate of said ratio, Powdered Activated Carbon and bentonite in mixer and is uniformly mixed, and ammonium carbonate is coated by bentonite by powder electroless plating, just obtained long life anti corrosion agent;
The preparation of grounded resistance reducing agent: its formula is, by weight, 30 ~ 40 parts, pulverized coal ash, 15 ~ 20 parts, saltcake, 8 ~ 10 parts, calcium carbonate, wherein, the order degree of calcium carbonate is not less than 200 orders; The pulverized coal ash of described deal, saltcake and calcium carbonate are sent in mixer and is uniformly mixed, just obtained grounded resistance reducing agent;
Mixture long life anti corrosion agent in grounded resistance reducing agent: by weight, described long life anti corrosion agent is 8 ~ 10 parts, described grounded resistance reducing agent is 80 ~ 90 parts, the long life anti corrosion agent of described deal and the grounded resistance reducing agent of described deal is sent in mixer and is uniformly mixed.
2. grounded resistance reducing agent, is characterized in that: application rights requires that a kind of grounded resistance reducing agent that reduces described in 1 obtains the method that earth electrode corrodes.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111951995A (en) * | 2020-08-31 | 2020-11-17 | 桑莱特成都西航港电气制造有限公司 | Environment-friendly physical resistance reducing agent |
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| CN102492202A (en) * | 2011-12-02 | 2012-06-13 | 北京国电科源电气有限公司 | Intumescent grounding reinforcing agent and preparation method |
| US20120293300A1 (en) * | 2011-05-19 | 2012-11-22 | Omni Lps. Co., Ltd. | Low-resistance carbon grounding module and method for manufacturing the same |
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| CN1030666A (en) * | 1988-03-28 | 1989-01-25 | 傅辅成 | Inorganic-chemical solid reducer of ground resistance |
| CN1051817A (en) * | 1990-11-17 | 1991-05-29 | 傅辅成 | A kind of solid grounded resistance reducing agent |
| CN1542079A (en) * | 2003-11-08 | 2004-11-03 | 许国进 | Solid grounding resistance-reducing agent and method for preparing the same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111951995A (en) * | 2020-08-31 | 2020-11-17 | 桑莱特成都西航港电气制造有限公司 | Environment-friendly physical resistance reducing agent |
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Address after: 523000 Guangdong city of Dongguan province Dongcheng District Shijing Industrial Zone, ranked No. 3 on the third floor plant Applicant after: DONGGUANG HOPEWELL LIGHTNING & SURGE PROTECTION DEVICES CO.,LTD. Applicant after: GUANGZHOU HOPEWELL TECHNOLOGY CO.,LTD. Address before: 523000 Guangdong city of Dongguan province Dongcheng District Shijing Industrial Zone, ranked No. 3 on the third floor plant Applicant before: DONGGUANG HOPEWELL LIGHTNING & SURGE PROTECTION DEVICES CO.,LTD. Applicant before: GUANGZHOU HOPEWELL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20230606 Address after: 330800 Shinao Town, Gao'an City, Yichun City, Jiangxi Province Patentee after: JIANGXI HOPEWELL ELECTRIC TECHNOLOGY CO.,LTD. Address before: 523000 3rd floor, No.3 workshop, row 1, Shijing Industrial Zone, Dongcheng District, Dongguan City, Guangdong Province Patentee before: DONGGUANG HOPEWELL LIGHTNING & SURGE PROTECTION DEVICES CO.,LTD. Patentee before: GUANGZHOU HOPEWELL TECHNOLOGY CO.,LTD. |