[0070] Example 1:
[0071] The invention is an environmentally friendly long-acting electrolytic ion grounding electrode and its construction method, such as Figure 1-Figure 3 As shown, the electrolytic ion ground electrode 6 of the present invention is a composite ground electrode composed of a steel ground electrode 4, an electrolytic ion source 2 and an electrolytic ion carrier 1 and the like. The electrolysis ion source 2 is the electrolysis ion electrode. The electrolysis ion carrier 1 is wrapped around the steel ground electrode 4 and the electrolysis ion source 2. The electrolysis ion source 2 and the steel ground electrode 4 are connected by soldering points 3, and one end of the wire 5 is connected to The electrolytic ion source 2 is connected, and the other end of the upper wire 5 is led to the surface. The electrolytic ion source 2 has an n-shaped handle shape, and the handles at both ends of the electrolytic ion source 2 are respectively welded to the steel ground electrode 4.
[0072] The electrolytic ion grounding electrode 6 can adopt two construction methods: horizontal and vertical. The construction method of the horizontal grounding electrode adopts the horizontally arranged horizontal electrolytic ion grounding electrode; the construction method of the vertical grounding electrode adopts the vertically arranged vertical electrolytic ion grounding electrode. The electrolytic ion grounding electrode 6 can also be a combined structure of a horizontally arranged horizontal electrolytic ion grounding electrode and a vertically arranged vertical electrolytic ion grounding electrode.
[0073] among them:
[0074] (1) The steel ground electrode 4 can be round steel, flat steel, angle steel or steel pipe, and its specifications can meet the requirements of Table 3.2.6-1 in GB50169-2006. There are no other special requirements. The steel ground electrode 4 mainly plays the role of conducting lightning current or fault current, and meets the requirements of thermal stability and voltage equalization. In the traditional grounding technology, the steel grounding electrode 4 is often used alone; and in the electrolytic ion grounding electrode of the present invention, the steel grounding electrode 4 is only one of the components of the grounding electrode.
[0075] (2) The electrolytic ion source 2 is made of magnesium alloy or zinc alloy and is in electrical conduction (short circuit) with the steel ground electrode 4. The electrolytic ion source 2 uses the electrode potential difference with the steel ground electrode 4 to spontaneously uninterrupted ( It is dissolved into the corresponding metal cations, which provides necessary and sufficient conditions for the spontaneous formation of anions and the electromigration of anions and cations on the cathode.
[0076] If there is a concentration gradient, diffusion will occur. The initial ion concentration in the usual electrolytic ion grounding electrode is much higher than the concentration in the surrounding soil. Therefore, there is a serious problem of ion diffusion. The ion concentration in the ordinary electrolytic ion grounding electrode spontaneously changes to the direction of concentration decrease, unless it is artificially added or supplemented regularly. Otherwise, it will eventually lead to significant performance degradation or even failure. Although in the electrolytic ion grounding electrode developed in the present invention, due to the presence of substances with a large specific surface area added to the electrolytic ionophore 1, the rate of ion diffusion can be reduced, but without special technical measures, the ion cannot be fundamentally changed. The reduction. Therefore, when the ions decrease more, the resistivity of the electrolytic ionophore 1 will increase, and the original natural resistance reduction effect will gradually deteriorate. In order to fundamentally solve this common problem, the present invention adds an electrolytic ion source 2 to the electrolytic ion carrier 1.
[0077] The electrolysis ion source 2 in the electrolysis ion carrier 1 generates a large amount of cations through the electrode reaction, which is automatically compensated to the carrier without artificial addition or supplementation; as a result of this automatic compensation, the electrolysis ion carrier 1 has a large excess of cations According to the principle of charge balance, a large number of anions around the carrier, such as OH - , Cl - , SO 4 2- , CO 3 2- And so on, must migrate to the carrier to maintain electrical neutrality. In this way, the electrolytic ion ground electrode developed by the present invention, one of its components, the ion concentration in the electrolytic ion carrier 1, will not decrease due to ion diffusion; due to the automatic ion compensation function, as long as the electrolytic ion source 2 works , The ion concentration will automatically increase instead. Therefore, the natural resistance-reducing effect of the electrolytic ionophore 1 will become more significant, and the stability of the resistance value is guaranteed by reliable technology.
[0078] During the process of automatically replenishing cations to the electrolytic ion carrier 1, the electrolytic ion source 2 is waiting to provide electrons to the steel ground electrode 4, so that the latter produces significant cathode polarization. Therefore, when the dissolved oxygen in the soil and groundwater obtains electrons from the surface of the steel ground electrode 4 and performs a reduction reaction, these electrons are all provided by the electrolytic ion source 2 instead of being provided by the anode reaction of the steel ground electrode 4, which is effective The ground prevents the corrosion of the traditional grounding body, eliminates the safety hazards caused by corrosion, and prolongs the service life of the grounding body.
[0079] (3) Electrolyzed ionophore 1 is mainly bentonite of 180-200 mesh and ordinary water, including artificial water addition or underground moisture, sky precipitation, etc., and a small amount of activator, including pollution-free, and the main ionization is Zn after encountering water 2+ , Mg 2+ , Ca 2+ , SO 4 2- , H + , OH - And so on, the formation of rare earth electrolytic ion carriers. Bentonite is a porous material with a large specific surface area, good water absorption and water retention. It can absorb and retain 3 times the volume of water and expand by 2-3 times. It is an indispensable working medium for electrolytic ion sources. All spontaneously generated ions and electromigrated ions are concentrated in the carrier, making the electrolytic ion carrier itself have a low resistivity (≤0.5Ω·m). The carrier also has the ability to increase the equivalent radius of the steel grounding electrode, which naturally reduces The blocking effect is significant.
[0080] In the present invention, the electrolytic ionophore 1 is prepared by adding bentonite powder with aluminosilicate, mercury, clay minerals, silicon dioxide, titanium oxide, etc. as the main components as the base material, adding a certain proportion of activator, and according to certain The amount is wrapped around the traditional grounding material steel ground electrode 4. In parts by weight, in the electrolytic ionophore 1, 50-70% bentonite, 10-20% activator, and an appropriate amount of ordinary water; among them, the specific components and content of the activator are as follows: Zn H 2 (SO 4 ) 2 , Mg(OH) 2 , Ca SO 4 , Ca(OH) 2， The ratio is 1:1:1:1.
[0081] The electrolytic ionophore 1 of the present invention has strong water absorption and water retention, and can maintain a large amount of water in the humid thunderstorm season, so that the conductive material can be distributed in the carrier in an ionic state, and thus has a very low resistivity; The approximate value of soil resistivity of rocky mountainous terrain and gravel and gravel geology is 5000Q·m, while the resistivity of electrolytic ionophore 1 is actually measured to be 0.52Q·m. The electrolytic ion carrier 1 wrapped around the steel grounding electrode 4 significantly increases the equivalent diameter or effective cross-section of the steel grounding electrode 4, and has a natural effect of reducing grounding resistance. At the same time, due to strong water absorption and water retention, it provides a reliable foundation for maintaining the stability of the grounding resistance. After corrosion test, the corrosion rate of steel material in ionophore is 0.00mm/a. Therefore, the corrosion effect is negligible.
[0082] The electrolytic ion body grounding electrode of the present invention can solve the problem of resistance reduction in high soil resistivity areas such as rocky mountains, gravel, and gravel conditions, and can successfully solve the corrosion problems and resistance of low soil resistance laws such as saline-alkali and low-lying swamps. Value stability issues and frequent maintenance and replacement issues.
[0083] The amount of electrolytic ion source 2 depends on the service life of the ground electrode determined in the design. When the electrolytic ion source 2 is used in conjunction with the electrolytic ion carrier 1, the electrolytic ion carrier 1 covers the cross-sectional area of the steel ground electrode 4, the amount per meter extended, and resistance reduction The basic relationship of the coefficients is shown in Table 1.
[0084] Such as Figure 4 As shown, the construction method of the environmentally friendly long-acting electrolytic ion grounding electrode of the present invention mainly includes: surface treatment of the electrolytic ion source → bagging and weighing the electrolytic ion carrier → transporting the three parts of the electrolytic ion grounding electrode to the installation site → pressing Design excavation and bury the electrolytic ion ground electrode trench → Adjust the electrolytic ion carrier (dry material) into a thick paste with clean water → Put the ion carrier into the groove at 90% of the designed amount → Put the welded electrolytic ion The steel ground electrode of the source → put the remaining half of the designed amount of electrolytic ion carrier → lightly backfill the fine soil → backfill the coarse soil, original soil, and compact → measure the cathodic polarization potential of the steel ground electrode → measure the electrolytic ion ground electrode Grounding resistance → If the grounding resistance is not up to standard, extend the length of the electrolytic ion grounding electrode until the resistance value reaches the standard. According to needs and expected effects, the electrolytic ion grounding electrode of the present invention adopts two construction methods, horizontal and vertical, and the construction method of the horizontal grounding electrode adopts a horizontal electrolytic ion grounding electrode, such as Figure 1-Figure 2 As shown, the construction method of vertical grounding electrode adopts vertical electrolytic ion grounding electrode, such as image 3 As shown, the specific process is as follows:
[0085] 1. Construction method of horizontal grounding electrode (net):
[0086] (1) According to the requirements of DL/T621-1997, the groove with trapezoidal cross-section is controlled, the width of the groove bottom is 0.2-0.3m, the length is the length of the designed steel ground electrode 1, and the groove bottom is flat; the steel ground electrode 1 is round steel, Made of flat steel, angle steel or steel pipe;
[0087] (2) Put half of the electrolytic ion carrier 1 prepared and mixed with water in the groove, and then put the steel ground electrode 4 of the electrolytic ion source 2 such as magnesium alloy or zinc alloy that has been welded. Put the other half of the electrolytic ion carrier 1, and use the steel ground electrode 4 and the electrolytic ion source 2 to be uniformly wrapped in the electrolytic ion carrier 1, and the steel ground electrodes 4 are welded according to the standard requirements;
[0088] (3) Backfilling fine soil, topsoil, coarse soil, and surface ramming (strengthening);
[0089] (4) Make a connection to the lead wire 5.
[0090] Such as image 3 As shown, the horizontal electrolytic ion ground electrode A and the vertical electrolytic ion ground electrode B can be used in combination. The vertical electrolytic ion ground electrode B is set at the bottom of the horizontal electrolytic ion ground electrode A, and the horizontal electrolytic ion ground electrode A It is perpendicular to the vertical electrolytic ion ground electrode B. Therefore, the irregular laying requirements of the electrolytic ion grounding electrode 6 can be met.
[0091] 2. Construction method of vertical (deep well, hole) ground electrode:
[0092] (1) Use a drill to drill holes in a stable and suitable position, with a hole diameter of 150-200mm, and the hole depth up to the design depth (usually 30-60mm);
[0093] (2) Put the angle steel or steel pipe welded with the solid electrolytic ion source 2 at a certain distance into the middle of the hole to form a vertical electrolytic ion ground electrode B;
[0094] (3) Pump in the prepared electrolytic ion carrier 1 to the wellhead;
[0095] (4) Do a good job of welding with the horizontal electrolytic ion grounding electrode A;
[0096] (5) Do a good job of connecting the lead wire 5;
[0097] (6) Backfill fine soil, topsoil, coarse soil, and tamped surface.
[0098] In the production process of the electrolytic ion grounding electrode of the present invention, the respective dosages of the steel grounding electrode 4, the electrolytic ion source 2 and the electrolytic ion carrier 1 to form the composite grounding electrode are shown in Table 2. In Table 2:
[0099] R Electricity : Under the condition of the same length or area, the grounding resistance of the electrolytic ion grounding electrode;
[0100] R pass : The grounding resistance of traditional steel grounding electrodes under the same length or area.
