Electrohydrodynamic equipment

Appearance of the equipment:

the Borehole electrohydrodynamic equipment:

Performances:

The Maximum energy of a pulse (Bit), kdzh 1

Frequency of pulses, Hz 0,1-10

The Submersible (borehole) instrument (Spark gap):

Length, mm 2500

Diameter, mm 78

Weight, kg 20

Demands to a cable: high-voltage monoconductor with isolation on a puncture to 60 kv

Working conditions: stress to 150 atm

	Power source: Power 6 kW The Supply voltage three phases 400V/50Hz The Output voltage 30 kV A charge Current 200 mА Regulation on a current And to stress.
	Borehole modulus: Power of bit 1 kJ. Stress of a charge Capacitors 30kV The Current of a charge of capacitors 200mA The Adjustable discharge circuit. Velocity of water treatment of a hole 1-3 metres per minute. Diameter of the modulus - 76 mm Modulus Length - 2500 mm

electrohydraulic action Realization is linked with Rather slow upbuilding of energy in a radiant Power supplies and its almost instant stressing in the liquid To medium.

the Basic operating factors an electrohydraulic action are high and superhigh pulsing The hydraulic pressures, the shock resulting in to emersion Surges with acoustical and hypersonic velocities; the significant Pulsing movements of bulks the fluids committed With the velocities attaining hundreds of metres per second; powerful pulsewise originating cavitation processes, capable to encompass rather great volumes of fluid; infra - and hypersonic radiatings: the mechanical resonance Appearances with the amplitudes, allowing to realise mutual shelling from each other the multicomponent solid Skew fields;

All these factors allow to render on fluid and installations, Put in it, rather miscellaneous physical and chemical affectings.

Thanks to particular virtues, Eg-technics allow to carry out effectively the problems not solved or difficultly solved by traditional methods. EG - technics help to solve problems in engineering industry and technique reconditioning, in agriculture and melioration, in construction and at development of minerals, in mining and hydrometallurgical production, in medicine. Some concrete instances are more low resulted.

In manufacturing engineering

As it is known, in engineering industry of a detail and stock material for them gain more often casting, drop forging, welding, pressing from powders. We will esteem some effective EG - the processes used in enumerated technics.

Casting is manufactured by a charging hot-metal in specially prepared moulding boxes. For the major details which are not demanding a split-hair accuracy of sizes, are used earth (in the core, consisting of arenaceous quartz) moulding boxes. After concreting and chilling cast should be extracted from the moulding box, as becomes by means of special shakers. However the sand burns and remains parts on cast. Specially it is complicated to remove rods (moulding box members) which one are erected for deriving of vacuities and openings. Difficulties are linked by that the rod which one is enclosed by molten metal and consequently works at elevated temperatures, not only burns more, but also is fabricated of stronger material. Traditionally water treatment of casts from the scorched sand is manufactured by the operative in a breathing mask a buster or a pneumochisel (operation harmful and unproductive).

The Eg-technology allowing efficiently to solve a problem [1 Is designed; 2]. Cast is erected on a grating which one is pulled down in a bosh with water, to cast welding rods from above are fed, bits on the earthed cast are carried out. A contraction shock wave, going on through metallical cast, on boundary turns to a surge of an extension which one shatters the scorched sand and all non-metallic stratifications having diverse acoustic performances. The hydrocurrent carries up all exfoliating of bins and openings.

Crushing - for cases of refinement (mechanical) diamonds and solid diamondlike materials, production of chemically pure powders - is bounded prochnostnymi by possibilities of the instrument. Eg-crushing solves all problems. In the camera-granulating machine (fig. 3) boots a portion of a material which one is handled in water. At the expense of operating of shock waves the material is shattered and crushed. For deriving of fragments of the given size at the bottom of a granulating machine arrange a sieve. Eg-process ensures: - Refinement of fragments of solid materials (diamonds, carbides, nitrides, ceramics, elbora) till 1-10 a micron; - Deriving acute neokatannyh the basils indispensable in production of the abrasive tool (for example, adamantine drills); - High chemical cleanness of a ground yield (at process implementation by the working instrument water is).

Water treatment from technological and production stratifications.

The problem of strife with stratifications, obrazuemymi on midwalls of tubes of various devices Is known. Special problems originate at usage rigid (containing salt of calcium, predominantly lime carbonate) waters at water service and in calorific heaters (heat sinks, dryers, the boiler equipment). "Stiffness" salts at water heat precipitate, which one derivates the strong deposition similar on properties on marble. This sediment (frequently call as incrustation) prevents a canal and, having the worst in 200-300 times thermal conductivity, sharply slashes a convective heat exchange (at 3 mm of width of a sediment - of power loss compound to 25 %). eg - Bits in a tube, the filled water, or on a tube in a bosh with water easily shatter depositions which one then are carried up by a hydrocurrent.

Agriculture and melioration

Boulders on fields sometimes cannot be inferred for field breaking points - they should be shattered on site. Usage of explosives result ins to clogging of weeding by splinters. The Eg-technology ensures shatterproof breaking down of rocks dimensioned in some cubic metre. Openings-shpury in diameter of 25 mm and length 500 mm are in stone wimbled. The blasthole is toped up by water, and in it the exploder (can represent two insulated cables stripped which one extremities are erected with the given gap) is erected. Bit at which one the shock wave reshapes a fracture is manufactured, and the hydrocurrent telescopes a fracture, ensuring breaking down - otkol a rock.

Screens of water supply wells in the course of operation are silted - kalmatirujut therefore the debit (efficiency) drops, frequently such holes should be closed down. EG - treating of allowed band of the screen by the special discharge device which has been pulled down in a hole, realises it dekalmatatsiju (4). Debit magnification in 2,5-3 times is thus attained.

Construction

At redesigns there is a problem of breaking down of the old ferro-concrete foundations and buildings. Application of explosives without a stopping of production and specially in buildings - is unsafe, the buster therefore is traditionally used. Eg - the technics frequently helps is shatterproof and it is secure to solve this problem: blastholes are drilled and Eg - shocks shatter integrity of a construction which one then is much more sweeping (in times) is knocked down by means of busters.

the Rejected and waste ferro-concrete articles - a problem of cities and ferro-concrete production plants where about 2-5 % of discard were enabled. Breaking down Ferro-concrete articles on EG - the arrays analogous used for water treatment of casting, allows to partition and salvage a concrete rock and the fixture