Electromagnetic hammer

IPC classes for russian patent Electromagnetic hammer (RU 2295025):

E21B37 - Methods or apparatus for cleaning boreholes or wells (E21B0021000000 takes precedence;cleaning pipes in general B08B0009020000)

E02D7/02 - Placing by driving

Another patents in same IPC classes:

Method for dewaxing equipment of oil wells and device for realization of said method / 2293841

In accordance to method, linear heating element is lowered into well. Sedimentations are heated up to melting temperature. In accordance to invention, as linear heating element, load-carrying geo-physical cable with central capillary is used. Chemical reagents are fed through the capillary to facilitate destruction of sedimentations. Device contains linear heating element, including at least two power elements, positioned in cover and connected to power source. In accordance to invention, as linear heating element, load-carrying geophysical cable is used, direct and reverse conductors of which are made in form of metallic ribbons, applied along screw line with opposite winding direction and with gap for creation of thermal losses in wired magnetic armor of cable under effect of high frequency current, which armor acts as heat-dissipating element. Inside direct conductor of cable, central capillary is located for feeding chemical reagents into well. Isolating cushion for armor is positioned above reverse conductor.

Method for protecting well equipment from sedimentation of asphalt-resin-paraffin substances / 2293840

In accordance to method, magnetic activator is lowered into well and mounted in operation column of tubing pipes at depth below zone of asphalt-resin-paraffin substance sedimentations. Extracted well liquid is processed using magnetic field of high strength and alternating polarity. In accordance to invention, before lowering magnetic activator into well, determined successively in oil of current well are content of pyrobitumen m_P, resins m_R and paraffin m_PA, benzene resins m_br and spirit-benzene resins m_sbr, time of aftereffect of magnetic processing of oil t_ae and time of raising of well liquid up to point where magnetic activator is mounted up to well mouth t_M. When conditions m_PA/(m_P+m_R)<1, t_ae>2t_M, m_br/m_sbr<1, m_P+m_br<10% are all met simultaneously, magnetic activator is lowered into well and extracted well liquid is magnetically processed.

Method for cleaning face-adjacent zone of bed of force well with washing of transfer water duct / 2293175

In accordance to method, groups of low pickup and high pickup force wells are selected as single hydrodynamic system. Valves of water ducts are manipulated and liquid is discharged from low pickup force wells into high pickup force wells. In accordance to invention before beginning of forcing into low pickup force wells, in low pickup force wells with pickup below acceptable determined is the value of face pressure at mouth, which is supposed to provide for self-discharge of water from this well onto surface. Water is forced into current well via transfer water duct, after which rotation is induced onto flow. Water forcing is stopped and pause is sustained for separation of water pollutions in internal volume of tubing pipes. Liquid is discharged from current well into vessel in volume, providing for removal of separated particles. Forcing and discharge of liquid with sustenance of pause is performed cyclically until total volume of forced water exceeds volume of transfer water duct of this low pickup force well, and after pollution from lower part of tubing pipes appears in discharge, during discharge into groups of high pickup force wells, discharge from low pickup force wells with pickup below acceptable is transferred to utilization vessel.

Device for processing well liquid / 2292448

Device includes body with apertures, connected by upper end to tubing pipe and containing hard reagent, positioned with possible movement of well liquid flow. In accordance to invention hard reagent is placed inside highly penetrable foam-metallic cover, which forms a gap with body and has three-dimensional mesh-cellular structure with dimensions of cells 2-5mm, and specific area of surface of 500-1400 m²/m³, while tubing pipe is provided with self-packing elastic collars, while apertures are made on lower end of body, and also at section of tubing pipe above collars, while apertures on the body have total area comparable to area of apertures on tubing pipe and area of passage cross-section of the latter.

Device for depression cleaning of well faces / 2292447

Device includes depression chamber with separating piston, hydrodynamic action device, hydraulically connected by means of connecting sleeve to slurry-receiving chamber, gate valve in lower section of slurry receiving chamber. Upper part of piston is equipped with sub having shelves on lower end. Sub is connected to tubing column, while its lower part is provided with windows and is built into depression chamber, relatively to which in transporting position separating piston is held by shear elements with possible limited axial-only downward movement. In transport position windows of piston are hermetically, by means of packing elements, are sealed by depression chamber. Upper end of depression chamber is provided with recesses, made with possible interaction with shelves of lower end of sub. Depression chamber is connected to hydrodynamic action device by means of sleeve. Hydrodynamic action device is made in form of differential valve, mounted in upper part of slurry-receiving chamber and spring-loaded relatively to depression chamber. Depression and slurry-receiving chambers are made with possible approach during rotation relatively to each other. Slurry-receiving chamber on outside is equipped downwardly with packing and holding mechanisms. Packing mechanism is made in form of upper stop with radial channels, elastic sleeve and conic lower stop, made with possible limited upward movement relatively to slurry-receiving chamber. Holding mechanism is made in form of bushing with spring localizers and dies spring-loaded towards inside, made with possible interaction with conic lower stop of packing mechanism. Lower end receiving section of slurry-receiving chamber is made in form of pipe spider and is screwed to slurry-receiving chamber by means of an adapter. Lower end receiving part is made with possible interaction with face without rotation and approach to slurry-receiving chamber during relative rotation relatively to one another. Slurry-receiving chamber is additionally provided with radials apertures closed in transport position by upper stop, which are made with possible combination with radial channels of upper stop. Upper stop of packing mechanism and bushing of holding mechanism are held in transport position relatively to slurry-receiving chamber by means of shear screws. Plug-valve is built in above separating piston, made in form of stripping valve.

Device for restoration and preservation of collector properties of formation / 2291950

Device contains face cutoff plate including elastic collar and expanding cone, shaft with conic section in upper part provided with profiled groove and also a yoke mounted on shaft with guiding pin, free end of which is positioned in profiled groove, and spring-loaded oval sockets, expanding cone and shaft being connected by shear elements, and reverse valve, mounting tool. In accordance to invention reverse valve of face cutoff plate is mounted in valve box with longitudinal slits in upper part of expanding cone. Radial channels in the body of mounting tool are at same level with the saddle of reverse valve. Positioned in transverse wall of mounting tool is locking valve in form of cylindrical rod with supporting head in upper part, in starting position held by shear element and in working position interacting with valve box of reverse valve of face cutoff plate. In the body of mounting tool above transverse wall an additional transverse wall is positioned with check valve, above and below it grates are positioned. Body of mounting tool and expanding cone are connected by shear elements. Yoke of face cutoff plate shaft is provided with spring localizers. Oval sockets are held on levers connected to aforementioned yoke.

Device for cleaning internal surface of well pipes / 2291282

Device contains body, adapter and device head. In the body, central through channel is made and a circular hollow coaxially thereto. Electric heaters are mounted in circular hollow. Adapter is connected to body with creation of route for connection of central channel to the well. central through channel is thermo-isolated.

Automated self-adjusting linear heater for heating liquid substance inside a well (variants) / 2291281

Automated self-adjusting linear heater consists of linear heater, made for example in form of cable line 1, consisting of low temperature cable 2 and high temperature heating cable 3, current-conductive wires on one end of which are connected to each other and isolated to form end dressing 4. Another end of cable is connected to power source 5. Cable line 1 is mounted outside the tubing column 6. Automated self-adjusting linear heater also contains ground-based measuring and controlling block 7, represented by, for example, programmable frequency electronic control module, and internal well measuring block, consisting of one or several indicators 8 for reading thermobaric parameters of fluid substance 9. Aforementioned indicators 8 are meant for converting current values of temperature and/or pressure to frequency, are connected to measuring and controlling block 7 by means of cable line 1 and mounted inside the body of tubing string 6 and/or in the body of its connecting sleeve 10 so, that sensitive element 11 of indicator 8 was located approximately flush with internal and/or external wall of tubing string 6 or with internal and/or external wall of connecting sleeve 10 depending on need for measuring parameters of fluid substance 9 inside the tubing string 6 and/or in behind-pipe space 12 of well.

Depression well bottom cleaning device / 2290492

Device comprises depression chamber with separating piston, hydrodynamic action application means, which is hydraulically communicated with mud receiving chamber by means of connection clutch and valve gate arranged in lower part of mud receiving chamber. Upper piston part is provided with sub connected to flow string. Lower piston part has windows and is installed in depression chamber. In transport position separating piston is fixed with shear members with respect to depression chamber so that the separating piston may perform limited downward displacement by means of finger fixedly connected to depression chamber. The finger passes in vertical groove made on outer separating piston surface. In transport position separating piston windows are sealed with depression chamber. The chamber is connected with hydrodynamic action application means by means of clutch. The hydrodynamic action application means is made as differential valve installed in upper part of mud receiving chamber and spring-loaded with respect to depression chamber. Depression and mud receiving chambers may be brought together by mutual chamber rotation. Mud receiving chamber is provided with packing and fixing mechanisms. The packing mechanism is made as upper stop with radial channels and also includes elastic collar and conical lower stop. The packing mechanism components may perform limited upward displacement with respect to mud receiving chamber. The fixing mechanism is made as bush with springing centralizers and jaws, which may cooperate with conical lower stop of the packing means. Lower end receiving part of mud receiving chamber is made as tube basket and is threaded with it by means of adapter. Lower end receiving part is provided with fishing wings located inside the receiving part and may cooperate with well bottom without lower end receiving chamber rotation and approaching to mud receiving chamber during mutual rotation thereof. Mud receiving chamber additionally has radial orifices closed with upper stop in transport position. The radial orifices may be registered with radial orifices of upper stop. In transport position upper stop of lacking mechanism and bush of fixing mechanism are secured with respect to mud receiving chamber with shear screws. Plug valve made as dropping valve is installed above separating piston.

Device for cleaning wells / 2289679

Device contains face cutter, including elastic collar and expanding cone, shaft with conic section on top, provided with profiled groove on external surface, and also a shell mounted on the shaft together with guiding pin, spring-loaded sockets, expanding cone and shaft, which are connected by shear elements, check valve, mounting tool, including body with transverse wall and lower-positioned channels. In accordance to invention, check valve of face cutter is mounted in valve box with longitudinal slits and circular recess in external upper part. Valve box is hermetically inserted into expanding cone. Radial channels in the body of mounting tool are positioned at same level with saddle of check valve. In transverse wall, locking valve is positioned, made in form of two interconnected cylindrical rods of larger diameter in upper part and lesser - in lower part with supporting head on top and supporting transverse limiter at the bottom. Body of mounting tool and expanding cone are connected by shear elements. Shell of face cutter shaft is provided with spring localizers. Sockets are held on levers connected to the shell.

Electric hammer / 2282029

Electric hammer comprises cylindrical body with three-phase winding located on inner body surface and tubular striking rotor slidably arranged in the body. The striking rotor is provided with excitation coils and short-circuited current-conducting rings located on outer striking rotor surface at poles thereof. The electric hammer has set-on weight installed on cylindrical surface thereof and connected to the surface and comprises striking rotor position sensors. Electric hammer has movable anvil block having case sealed to lower, inner part of cylindrical hammer body. The anvil block comprises damping chamber. High-pressure air chamber is defined by striking rotor cavities and cylindrical hammer body over the striking rotor and is connected to compressor by pipeline provided with check valve. Damping chamber of anvil block is communicated with ambient space through high-pressure safety valve, which in turn is linked to compressor through check valve. Lower part of anvil block has air-tightly installed cylindrical transmission power plate supported by anvil block case. Electric hammer also has power supply system, which controls three-phase winding of cylindrical body, and striking rotor excitation system.

Method for cast-in-place pile building in collapsible ground / 2266368

Method involves drilling pilot hole; installing casing pipe connected to puncher; punching the well ground by dropping load on the puncher through casing pipe to reach design point and enlarging the casing pipe; arranging reinforcement case in the pipe; filling the well with concrete mix as casing pipe moves upward; compacting the concrete mix. In the case of pile with 300-1500 mm diameter forming and in the case of collapsible ground layer thickness up to 18 m or 18-50 m ratio between pilot hole depth and collapsible ground thickness is 1:(4.5-6) and 1:(1.5-5). The puncher has reinforced concrete tip and head made of tube with outer diameter equal to inner diameter of pilot hole. Welded to the head are centering rings. The tip has ring to engage thereof with technological control rod provided with thread, washer with retainers and nut on opposite end thereof. Ratio of height H of upper head part provided with centering rings to length of casing pipe to be installed in the head is 1:(20-30). Ratio between outer puncher diameter D and outer diameter d at tapered part ℓ thereof is equal to 1:0.8. Length ratio between cylindrical head part L and cylindrical tapered part ℓ is equal to 1:0.6. Angles γ of head and head transition area leading to tapered part ℓ are equal to 30°. Difference between outer puncher diameter D to outer casing pipe T diameter is 90-100 mm.

Device for driving casing strings / 2245964

Device is suspended on flexible support of balancing mechanism and includes striker bar with tail piece, head piece of casing pipes, spring and locking element placed on tail piece. Tail piece of striker bar is made with stopping clamp and is provided with support washer. Locking element is made with possible displacement along tail piece axis. Spring is mounted between support washer and locking element.

Tubular pile, encased in concrete, the method of driving piles / 2236505

The invention relates to tubular piles, enclosed in concrete

Device for immersion in the soil pipes / 2135692

The invention relates to the field of construction equipment and is intended mainly for diving into the ground metal pipes, primarily for the trenchless laying of underground communications

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Pile driving diesel hammer / 2098556

The invention relates to the construction of pile bases, in particular to the hammers single action for pile driving in connected and dense malovlazhnom soils and in water-saturated soft soils

Electromagnetic hammer / 2026924

Device for driving casing strings / 2245964

FIELD: mining and building industry, possible use during driving in heavy metallic or reinforced concrete piles.

SUBSTANCE: electromagnetic hammer contains cylindrical magnetic duct body with coaxially mounted electromagnetic coils of the same name of direct and reverse drive, guiding pipe, ferromagnetic strikers, indicators of upper and lower positions of ferromagnetic striker, energy feeding and control system. Electromagnetic hammer consists of n elementary electromagnetic hammers, mounted successively one on top of another. Between ferromagnetic strikers of elementary electromagnetic hammers, non-magnetic steel spacer plates are inserted, each having length equal to drive value of ferromagnetic striker. Above the uppermost ferromagnetic striker and below lowermost ferromagnetic striker, hermetic hollows are formed. Electromagnetic hammer is provided with n load masses. Electromagnetic coils of the same name are connected between each other synchronously and serially and have divided hollow disks. Each electromagnetic coil of the same name together with part of body of elementary electromagnetic hammers is made of identical sections. Guiding pipe and magnetic ducts are made hollow. Guiding pipe of electromagnetic hammer has longitudinal recess, filled with non current-conductive material.

EFFECT: increased energy of impacts of electromagnetic hammers.

1 dwg

The invention relates to the mining and construction industries, in particular to devices percussion, and can be used for the destruction of the rocks, as a powerful impulsive seismic source or for driving heavy piles in the seabed during the construction of fixed offshore Legostayev platforms.

Known electromagnetic hammer [A.S. No. 1051256]containing 7 solenoid coils and 4 ferromagnetic brisk, moving alternately in the upper position on the non-magnetic pipe. At the top of this pipe ferromagnetic jaunty hold and then by turning off the upper electromagnetic coil, jaunty fall down, hitting the anvil.

The disadvantage of this device is the low frequency of the shock and, consequently, low impact power.

Closest to the proposed invention is an electromagnetic hammer [A.S. No. 1435708], containing a cylindrical housing with magnetic poles and coaxially same set of electromagnetic coils backward and forward movement, a guide tube, a ferromagnetic sensor upper and lower position of the ferromagnetic striker system of power and control.

A disadvantage of the known electromagnetic hammer is a low energy shock.

The objective of the invention is the increase in impact energy.

The put is fair task is achieved by that the electromagnetic hammer containing a cylindrical casing with magnetic poles and coaxially mounted electromagnetic coil backward and forward movement, a guide tube, a ferromagnetic head with slots and bearings in them, the sensors of the upper and lower position of the ferromagnetic striker system of power and control, and this electromagnetic hammer consists of n elementary electromagnetic hammers arranged in series to each other, and between the ferromagnetic strikers elementary electromagnetic hammers introduced non-magnetic steel spacers, each of length equal to the stroke of the ferromagnetic striker ferromagnetic jaunty made with slots and bearings in them, the same electromagnetic coils are connected according and consistently, or each same electromagnetic coil is connected to the outputs controlled thyristor converters, at least one of the elementary electromagnetic hammers has upper and lower provisions ferromagnetic striker electromagnetic hammer equipped with n progruzochnye masses, each value that compensates together with the mass of the cylindrical housing of the magnetic circuit of the electromagnetic hammer force created by the same electromagnetic coils forward stroke, over vernierfontaine busy and under the lower ferromagnetic brisk, educated sealed cavity over the top of which formed secondary camera, each same electromagnetic coil together with a part of the elementary buildings electromagnetic hammers are made identical sections, the same electromagnetic coils are split, hollow disks, guide tube and the magnetic core is made also hollow, all listed cavity filled with non-conducting cooling fluid and are connected with external cooling radiator, guide tube elementary hammer has a longitudinal slot filled with non-conductive material.

The drawing shows the structure of an electromagnetic hammer, comprising at least two elementary electromagnetic hammers installed at each other. Each elementary electromagnetic hammer contains electromagnetic coils 1, 2 idling and the electromagnetic coil 3, 4 stroke, ferromagnetic Boiky 5, 6 and nonmagnetic spacers 7 on the stroke of ferromagnetic Boykov. Ferromagnetic jaunty and non-magnetic spacers are slotted with bearings (not shown). All electromagnetic coils are identical and made by sections (the drawing shows the lower electromagnetic coil, made of two equal sections 8, 9). On the upper electromagnetic coil mounted wearable is osecna mass, consisting of two parts 10, 11, the number of elementary electromagnetic hammers). The upper and lower ferromagnetic head elementary electromagnetic hammers are connected mechanically (in the drawing, this connection is not shown). Ferromagnetic jaunty move inside the solenoid coils in the guide tube 12, in which the longitudinal hollow channels associated with the General cooling radiator flexible tubing 13. Guide tube electromagnetic hammer has a longitudinal slot (not shown)filled with non-conductive material. Ferromagnetic jaunty and nonmagnetic his spacers are slotted bearings. All electromagnetic coil inside have split hollow disks 14, filled with coolant and associated flexible tubing 15 with a total cooling radiator (not shown). All of the cylindrical body of the elementary magnetic circuits electromagnetic hammers have a cavity filled with liquid, and the pipes 16 are connected to the cooling radiator. At least one lower elementary electromagnetic hammer has sensors top 17 and bottom 18 of the provisions of the ferromagnetic brisk. Same electromagnetic coil of the electromagnetic hammer connected according to and in series or standalone and connected to fully manipulated the output thyristor converters with systems alternately activate the coils forward and reverse moves ferromagnetic brisk. The drawing shows the inlet 19 and outlet 20 from the pump to the cooling radiator. In the electromagnetic hammer under ferromagnetic brisk 6 and above ferromagnetic brisk 5 is airtight cavity in the vacuum chamber 21 and the compression chamber 22, respectively. The cavity 22 has an additional camera (not shown).

Ferromagnetic Boiky 5 and 6 are connected mechanically (this connection is not shown). At least one elementary electromagnetic hammer has the upper sensor 23 and the sensor 24 in the lower position of the ferromagnetic brisk.

Electromagnetic hammer works as follows.

All same electromagnetic coil 1, 2 idling served rectified voltage from a fully controlled thyristor Converter, is formed a rectangular pulse current and ferromagnetic Boiky 5, 6 together with the nonmagnetic spacer 7 begin to move along the guide tube 12 up. With the approach of the ferromagnetic firing pin in the upper position of the upper sensor 23 controlled thyristor Converter feeding a constant current to the electromagnetic coil 1, 2 is transferred to the inverter mode with minimal angles of control in this mode, and the current in these electromagnetic coil having a large inductance decreases rapidly at almost full negative is atragene controlled thyristor Converter. The electromagnetic energy of the electromagnetic coils is given to mains AC. The reverse voltage on the power thyristors and electromagnetic coils does not exceed the value of the amplitude values of the supply network. Simultaneously or with some delay from the other, a fully controlled thyristor Converter fed DC voltage to the electromagnetic coil 3, 4 forward stroke of magnetic heads 5, 6. This ferromagnetic jaunty intensively inhibited by the forces of the compression chamber 22 and the electromagnetic force have joined solenoid coils 3,4. Ferromagnetic die quickly braked, accelerated in the forward direction (move down). When you approach the lower end of the ferromagnetic firing pin 5 to the lower position sensor 24 and the sensor generates a control pulse to the switch controlled thyristor Converter, the supply of the electromagnetic coils 3, 4. The current in these electromagnetic coils through controlled thyristor Converter, translated in inverter mode with minimal angles management, decreases rapidly to zero. Almost at the same time ferromagnetic head 6 strikes the striker plate, and further, for example, on the pile. Ferromagnetic die after hitting acquires speed rebound, and when it is not lower electron gnity coils 3, 4 again includes an electromagnetic coil 1, 2. The cycle of operation of the electromagnetic hammer is repeated. The mode of operation of solenoid coils idle and the stroke is selected so that the currents in them are the same. Then, despite the shock of the operation of electromagnetic hammer, he from the network consumes energy evenly on both half-cycles, which is very important for large consumed power, and especially when working from a stand-alone diesel generator units. In this mode achieves the most optimal mode of operation when the piling. The frequency of strokes can be reached at 1-2 Hz, which gives the maximum performance of the piling works. Performing electromagnetic hammer, as shown, may overlap n sizes. I.e. one electromagnetic hammer you can do the work piling n sizes. Energy and blow frequency, in addition, may be regulated and controlled thyristor converters.

It is known that electromagnetic mechanisms (electromagnetic hammers) have a low efficiency. Basically the power losses occur in the electromagnetic coils, so the proposed system cooling coils, guide tube and the cylindrical body of the magnetic circuit allows you to effectively cool the electromagnetic hammer in his large PV.

In General, the execution of the electromagnetic hammer of n elementary electromagnetic hammers in a partitioned execution, with intensive cooling system, with pressure and vacuum chamber allows you to create electromagnetic hammers on any arbitrarily large energy shocks, and one design electromagnetic hammer can provide work n the model.

Electromagnetic hammer containing a cylindrical housing with magnetic poles and coaxially same set of electromagnetic coils backward and forward movement, a guide tube, a ferromagnetic head, the upper and lower provisions ferromagnetic firing pin, the power supply system and control, characterized in that the electromagnetic hammer consists of n elementary electromagnetic hammers arranged in series to each other, and between the ferromagnetic strikers elementary electromagnetic hammers introduced non-magnetic steel spacers, each of length equal to the stroke of the ferromagnetic striker ferromagnetic jaunty made with slots and bearings in them, the same electromagnetic coils are interconnected in accordance with and consistently and each same electromagnetic coil is connected to the outputs controlled thyristor converters, at least one of the elementary electromagnetic hammers has upper and lower provisions ferromagnetic striker, electron gnity hammer equipped with n progruzochnye masses, each value that compensates together with the mass of the cylindrical body of magnetic force created by the same electromagnetic coils forward stroke, above the upper ferromagnetic busy and under the lower ferromagnetic busy formed a sealed cavity over the top of which formed secondary camera, each same electromagnetic coil together with a part of the elementary buildings electromagnetic hammers are made identical sections, the same electromagnetic coils are split hollow disks, guide tube and the magnetic circuit also made hollow, all of these cavities are connected with external cooling radiator, guide tube electromagnetic hammer has a longitudinal slot filled with non-conductive material.