48results about How to "Increased penetration distance" patented technology

The invention discloses an ultrasonic-assisted reservoir stratum chemical blockage removal experimental facility and an experimental method. The experimental facility comprises a rock core clamp holder, a ring compression feed device, an ultrasonic energy converter, an ultrasonic generator, a chemical reagent storage tank connected with a liquid inlet of the rock core clamp holder by a conveying pipeline, a water storage tank, an oil storage tank and a liquid container connected with a liquid outlet of the rock core clamp holder. The experimental method comprises the following steps of: 1, pretreating a tested rock core; 2, testing the initial permeability of the rock core through water drive; 3, polluting the rock core; 4, testing the permeability of the polluted rock core through the water drive; 5, performing an ultrasonic-assisted chemical reagent blockage removal experiment; 6, testing the permeability of the rock core subjected to the blockage removal through the water drive; 7,performing the ultrasonic-assisted chemical blockage removal experiment under the condition of ultrasonic oscillation with different frequencies and amplitudes; and 8, processing data. The ultrasonic-assisted reservoir stratum chemical blockage removal experimental facility has reasonable design, complete functions and high using effect, is easy and convenient to arrange and operate, and can realize the pulse fluctuation of the chemical blockage removal under the action of the ultrasonic oscillation.

The invention discloses a hydraulic pulse-assisted reservoir chemical remedial treatment experiment device and a hydraulic pulse-assisted reservoir chemical remedial treatment experiment method. The experiment device comprises a core holder, an annular pressure supply device, a chemical reagent storage tank, a water storage tank, an oil storage tank and a liquid container, wherein the chemical reagent storage tank, the water storage tank and the oil storage tank are connected with a liquid inlet of the core holder through delivery pipes; the liquid container is connected with a liquid outlet of the core holder; and a hydraulic pulse generating device is arranged on each delivery pipe. The experiment method comprises the following steps of: 1, preprocessing a tested core; 2, measuring the initial permeability of the core by water drive; 3, polluting the core; 4, measuring the permeability of the core by water drive after pollution; 5, performing a hydraulic pulse-assisting chemical reagent remedial treatment experiment; 6, measuring the permeability of the core by water drive after remedial treatment; 7, performing the hydraulic pulse-assisted chemical reagent remedial treatment experiment under the conditions of different frequencies and different amplitudes; and 8, arranging data. The device is rational in design, convenient to arrange, complete in function, simple to operateand good in using effect and can realize pulse fluctuation of the chemical remedial treatment under the action of an injection pressure.

The invention relates to a novel modification system and process of a hot-dry-rock thermal reservoir, characterized by the combination of two stimulation measure processes, thermal stimulation and chemical stimulation. The process is characterized in that a naturally present fracture network is destructed by thermal stimulation to enhance permeability, partial minerals, scale and obstruction in shafts and fractures are dissolved by the chemical stimulation, and flow guiding capacity of the fractures is further improved. The repeating of the process enables a larger range of thermal reservoirs to be modified. By using the process, the problem of the prior art that after thermal stimulation, part of the fractures are closed along with the rise of the temperature of a cooling area and the problem that that a chemical stimulant disappears nearby an injection location during its excess speed of reacting with rock minerals at high temperature are solved, and the process enables greatly reduction in the risk of frequent microseism in a reservoir modification process when compared to traditional hydrofracturing. The process is widely applicable to the modification of hot-dry-rock thermal reservoirs.

A method of fracking carbonate-rich reservoirs, comprising injecting a cryogenic or chilled fluid followed by an acid into said reservoir, allowing the acid to etch said reservoir, and thereby increasing production of a fluid, such as water, oil or gas, from said reservoir.

The invention relates to a pseudorandom spectrum-spread electromagnetic wave tomographic imaging instrument and a method for achieving imaging. The imaging instrument comprises a pseudorandom sequence generator, a modulator, a power amplifier and a transmitting antenna which are sequentially connected, and further comprises a signal receiving antenna, a demodulator, a signal correlator and a signal strength estimator which are sequentially connected, wherein the signal correlator is connected with the pseudorandom sequence generator which is connected with a synchronous controller, and the synchronous controller is connected with a data processing host which is connected with a human-computer interface. Under the condition that conditions such as transmission energy, working frequencies and detected objects are basically the same, by means of the pseudorandom code spectrum-spread technology, the system can have high interference resistance, and the detection penetration distance can be increased to a certain extent.

The invention relates to a gelled acid for acid fracturing stimulation measures of an oil-gas reservoir. The gelled acid can be applied to cid fracturing stimulation measures of a medium-high temperature carbonate reservoir and has excellent acid-rock reaction retarding property, and filtration reduction property; the flow conductivity of an acid corrosion fracture and the penetration distance of an acid liquid can be effectively improved; deep penetration of the acid liquid can be effectively achieved; a remote reservoir is communicated to reach the target of deep acid fracturing transformation; meanwhile, the gelled acid generates a small amount of residues after acid fracturing; the secondary harm caused by the reservoir is extremely low; meanwhile, the acid liquid system is stable in performance; and field preparation is simple and convenient.

The invention discloses a direct injection molten iron desulphurization spray gun for a metal particle magnesium or magnesium-based or calcium-based desulphurization agent. The direct injection molten iron desulphurization spray gun comprises a connecting flange and a gun barrel which are sequentially connected and communicated, wherein the gun barrel comprises a connecting section gun barrel and a gun body section gun barrel; the connecting section gun barrel comprises a gun core; a distributor is connected with the lower end of the gun core of the gun body section gun barrel; the distributor comprises an upper end short connecting pipe, a lower end plug platform and a plurality of through holes formed in the wall of the short connecting pipe; and each through hole is communicated with a jetting pipe, and the jetting pipes are distributed in a fire-proof pouring material liner positioned outside the side wall of the distributor. The direct injection molten iron desulphurization spray gun disclosed by the invention can be used for enhancing the jetting strength, extending the desulphurization reaction area and intensifying the gasification and dissolution of metal particle magnesium through structural design, and can be used for enhancing the adaptability on low-quality metal particle magnesium and jetting desulphurization of molten iron tanks with different sizes, extending the adaptive capacity of a process and reducing the consumption cost of the molten iron desulphurization metal particle magnesium through the improvement of desulphurization process steps.

The invention relates to the field of corrosion protection of ocean engineering materials, and aims to provide a preparation method for an ocean engineering reinforced concrete silane emulsion protective agent. The method comprises the following steps of: previously stirring and dissolving an emulsifier in a reaction kettle by using 40-80 parts by mass of de-ionized water; slowly adding 20-60 parts by mass of silane monomer under high shear force; and then emulsifying at 30-60 DEG C under low-speed stirring for 6-12 hours to obtain uniform stable micro-nano emulsion, namely a product. By using the method, 90 percent of surface water absorption can be reduced, the effect of obstructing erosion of concrete reinforcement by a marine corrosion medium can be achieved, an internal vapor discharge passage is also kept, and internal atmospheric pressure produced to a film layer is reduced. Compared with a pure silane monomer impregnant, the volatilization rate is low, the utilization rate of silane is increased, the infiltration distance is increased, and the full curing time is greatly shortened. Compared with the conventional polysiloxane emulsion, the process is simple, the molecular weight of a filming substance is smaller, the infiltration capacity is stronger, and the filming capacity is higher.

The invention discloses a rust-proof pigment. The rust-proof pigment comprises the following raw materials in parts by weight: 30-50 parts of scale-shaped zinc powder, 2-10 parts of modified aluminum tripolyphosphate, 15-20 parts of titanium dioxide powder, 30-35 parts of zinc phosphate, 1-2 parts of calcium phosphate, 8-10 parts of calcium carbonate, 2-7 parts of a pigment dispersing agent, 2-5 parts of a silicane coupling agent, 3-7 parts of ammonium molybdate, 1-2 parts of coconut fatty acid diethanol amide, 10-15 parts of a dinonylnaphthalene sulfonic acid, 5-10 parts of ethyl orthosilicate, 0.5-0.9 part of a polyaspartic acid and 0.5-0.7 part of petroleum sodium sulfonate, and further comprises 1.5-3.2 parts of sepiolite powder. The rust-proof pigment disclosed by the invention is low in production cost; environmental pollution is avoided, that is, an environmental protection function is achieved; the rust-proof pigment is high in storage stability and cost performance, and has a certain of rust-proof and comprehensive performance.

The invention discloses a gas-liquid coaxial ejection liquid fuel electrostatic atomization nozzle. A needle-like corona charging electrode coaxial with a fuel corona charging chamber is placed in the fuel corona charging chamber, the right end of the fuel corona charging chamber is connected with an atomization swirler and a nozzle body which are coaxial with the fuel corona charging chamber, and the right end of the nozzle body is connected with a coaxial gas swirler. A left conical hole and a right conical hole which are coaxial and are communicated are formed right in the middle of the nozzle body. A conical atomization swirler is sleeved with the left conical hole of the nozzle body. The nozzle body is provided with a plurality of gas impact holes communicated with a gas inlet pipeline and the right conical hole of the nozzle body. The gas swirler is provided with a plurality of gas whirl flat holes communicated with the gas inlet pipeline and the outside. Corona discharge is carried out on the liquid fuel, the electrified liquid fuel is atomized through the static electricity and centrifugal force, the impact type auxiliary atomization is carried out on the liquid fuel through gas flow, the atomized drops interact with the air coaxially ejected after leaving the nozzle, and the combustion efficiency is improved.

The invention provides a system for performing simultaneous desulfurization, denitrification and demercuration by ozone in combination with a microwave-excited magnetically-separable catalyst. Flue gas from a coal-fired boiler or an industrial kiln is dedusted and cooled, and part of SO2, NO and HgO are pre-oxidized in a flue; peroxides are activated in a microwave spay reactor by microwave in cooperation with the magnetically-separable catalyst to generate hydroxyl radicals and sulfate radicals so as to finally oxidize the rest of SO2, NO and HgO as well as NO2 and SO3 from pre-oxidization into a gas mixture of sulfuric acid, nitric acid and divalent mercury; the generated gas mixture of sulfuric acid, nitric acid and divalent mercury is washed and absorbed by a spraying tower at the tail to generate a mixed solution of sulfuric acid, nitric acid and divalent mercury; the mixed solution of sulfuric acid, nitric acid and divalent mercury generated in the spraying tower enters a catalyst magnetic separation tower to receive magnetic separation so as to recycle the catalyst. The system of the invention provides 100% removal of SO2, NO and HgO, the removal process is free of secondary pollution, and the system has a promising market application prospect.

The invention relates to chemical fracturing fluid for hot dry rock, which is prepared by mixing fluoboric acid, polyamino polyether methylene phosphonate and aluminum chloride hexahydrate. After the prepared chemical fracturing fluid is injected into a thermal reservoir of the hot dry rock, fluoboric acid is hydrolyzed to generate HF (hydrogen fluoride) gradually, the reaction speed with a stratum is lower, and deep penetration can be achieved. Polyamino polyether methylene phosphonate as polyatomic acid, can be decomposed into hydrogen ions at multiple stages, acts on the stratum for a long time, extends a penetration distance of chemical fracturing, further achieves a deep thermal reservoir transformation effect and has performance such as low speed, low damages, scale prevention and corrosion inhibition; simultaneously, phosphonate of polyamino polyether methylene phosphonate has significant absorption and water-dampness characteristics which can catalyze reaction between hydrofluoric acid and quartz and allow the corrosion speed of the quartz to be increased with time; and the improvement on the radial deep penetrability of the reservoir is facilitated.

The invention provides an automatic pot plant soil humidity adjusting device which comprises a pot body, a controller, a water storage device, a water delivery main pipe, a penetration branch pipe, a humidity inductor and a fan. The controller is connected with the water storage device through a humidity displayer. The water delivery main pipe is connected with the water storage device and the penetration branch pipe. The penetration branch pipe and the humidity inductor are installed in the pot body. The fan and the humidity inductor are both in wireless connection with the controller. The fan is used for blowing air to the pot body. The automatic pot plant soil humidity adjusting device can conduct reasonable adjustment according to the pot plant soil humidity and has the advantages of simple structure and high automation degree, stable growth of pot plants is promoted, and cost is reduced.

The invention relates to acid mixed solution, in particular to a chelating acid of sandstone for the yield increase of oil-gas fields. The technical scheme is that: the chelating acid is prepared from citric acid, citrate, ammonium salt, ethylene diamine tetraacetic acid and surfactant in a ratio of (1-25):(1-20):(1-20):(0.01-1):(0.01-1). The chelating acid has the advantages that: the pH of a chelating acid system is more than 5, so that the chelating acid has small corrosion to metal pipelines and drilling equipment; the chelating acid has high dissolution to the sandstone, and the dissolution rate of the sandstone is more than 10 percent; the chelating acid also can effectively avoid the generation of secondary sedimentation; and the acid has excellent sustained-release effect, and can enter a deep stratum to work.

The invention relates to a device for realizing an injection control policy of an oil injector. The device comprises an oil injector end cover, an oil injector electromagnetic control device, an oil injector oil preinjecting rod, an oil injector back oil injecting rod, an oil injector main oil injecting rod, a high-pressure oil injecting hole, an oil injecting way branch, an oil injector main oil way, an oil injector main oil way inlet, an oil injector body and an oil injector injecting rod spring; the magnetism of the oil injector electromagnetic control device is changed through controlling connection and disconnection of the oil injector electromagnetic control device; and under the effect of electromagnetic force, the oil injector oil preinjecting rod, the oil injector back oil injecting rod and the oil injector main oil injecting rod upwards move to realize preinjection, back injection and main injection. The device realizes multiple times of precise injection of the oil injector, can control the combustion phase and the combustion temperature, realizes sufficient oil combustion, improves the in-cylinder thermotechnical conversion efficiency, improves the oil energy utilization rate, realizes the in-cylinder clean combustion, reduces generation of pollutants, and realizes energy conservation and emission reduction.

The invention relates to a method of a control strategy for realizing jetting of a fuel injector. The method includes the steps that in the operation process of an engine, an ECU controls the on-off states of a fuel injector pre-injection electromagnetic switch, a fuel injector post-injection electromagnetic switch and a fuel injector main injection electromagnetic switch, then a fuel injector pre-injection electromagnet, a fuel injector post-injection electromagnet and a fuel injector main injection electromagnet can be electrified, the magnetism of the fuel injector pre-injection electromagnet, the fuel injector post-injection electromagnet and the fuel injector main injection electromagnet can be changed, under the effect of electromagnetic force, a fuel injector pre-injection rod, a fuel injector post-injection rod and a fuel injector main injection rod move upwards, and therefore pre-injection, post-injection and main injection are realized. According to the method, repeated accurate jetting of the fuel injector can be realized, the combustion phase and the combustion temperature can be controlled, fuel oil can be fully combusted, the thermotechnical conversion efficiency in a cylinder can be improved, the utilization rate of the energy of the fuel oil can be increased, clean combustion in the cylinder can be realized, generation of pollutants is reduced, and energy conservation and emission reduction can be realized.

The invention discloses a basement outer wall anti-seepage structure and a construction method thereof. The anti-seepage structure comprises a basement bottom plate, a basement outer wall, a steel plate water-stop belt, an inclined supporting piece and a concrete protection layer, wherein, the basement outer wall is arranged on the basement bottom plate; the steel plate water-stop belt is located in the basement outer wall, and the lower end of the steel plate water-stop belt is welded to a bottom plate reinforcing steel bar in the basement bottom plate at the corresponding position of the basement outer wall; on the downstream face of the steel plate water-stop belt, bottom plate concrete of the basement bottom plate covers part of the steel plate water-stop belt; the inclined supporting piece is obliquely welded between the downstream face of the steel plate water-stop belt and the bottom plate reinforcing steel bar in the basement bottom plate; and the concrete protection layer is poured upwards on the upstream face of the steel plate water-stop belt along the basement bottom plate to the height center position of the steel plate water-stop belt, and the elevation of the concrete protection layer is higher than that of bottom plate concrete of the basement bottom plate. According to the basement outer wall anti-seepage structure and the construction method thereof, the waterproof effect of the basement outer wall can be improved, the perpendicularity is guaranteed, the engineering quality is improved, the construction period is shortened, and the construction progress is accelerated.

The invention relates to the field of environmental geotechnics, and particularly relates to an ultra-hysteresis dipole transverse wave source in the field of engineering geophysical logging. The ultra-hysteresis dipole transverse wave source is characterized by comprising an emitter and a receiver, wherein a sound insulation pipe is arranged between the emitter and the receiver; the shell of the emitter and the shell of the receiver are internally respectively provided with two ultra-hysteresis plates which are made of ultra-hysteresis materials and are consistent in direction and identical in specification; and coils which are wound in the opposite direction and has the same turns are arranged on the two ultra-hysteresis plates. The ultra-hysteresis dipole transverse wave source provided by the invention has the advantages of small volume, wide bandwidth, large transmitting power, favorable anti-interference characteristic, favorable signal repeatability, short aftershock, long penetrating distance and the like, and is convenient for installation and suitable for the operation of the transverse wave logging in the field of the environmental geotechnics. The emission frequency of the ultra-hysteresis dipole transverse wave source can be adjusted according to the external voltage.

The invention relates to a pseudorandom spectrum-spread electromagnetic wave tomographic imaging instrument and a method for achieving imaging. The imaging instrument comprises a pseudorandom sequence generator, a modulator, a power amplifier and a transmitting antenna which are sequentially connected, and further comprises a signal receiving antenna, a demodulator, a signal correlator and a signal strength estimator which are sequentially connected, wherein the signal correlator is connected with the pseudorandom sequence generator which is connected with a synchronous controller, and the synchronous controller is connected with a data processing host which is connected with a human-computer interface. Under the condition that conditions such as transmission energy, working frequencies and detected objects are basically the same, by means of the pseudorandom code spectrum-spread technology, the system can have high interference resistance, and the detection penetration distance can be increased to a certain extent.

The invention relates to an organic cross-linking acid system and its preparation method and application. The components of the organic cross-linking acid liquid system are: hydrochloric acid, organic acid, hydrofluoric acid or ammonium bifluoride, polymer thickener, organic acid cross-linking agent, and the rest is water; the preparation method includes: hydrochloric acid, organic acid, hydrogen Slowly add polymer thickener to the solution of hydrofluoric acid or ammonium bifluoride and water, then stir and dissolve at 600-650r / min to form a clear liquid, and let it stand for 2-4h to obtain thickened acid, and add the above-mentioned Organic acid cross-linking agent, stir for 1‑5min after adding, to obtain an organic cross-linking acid system. The organic cross-linked acid liquid system is used for acidizing acid fracturing of high-temperature carbonate rock or sandstone oil and gas reservoirs to increase production; after the hydrochloric acid in the system is consumed, the organic acid continues to react with the formation, so it penetrates more than the hydrochloric acid cross-linked acid system The longer the distance, the more pronounced the effect.

The invention provides a system and method for integrated purification of flue gas by ozone in cooperation with microwave-excited flyash to induce free radicals. Flue gas containing SO2, NO and HgO from a combustor is dedusted and cooled, and part of SO2, NO and HgO are pre-oxidized in a flue by ozone; persulfates are activated in a microwave spray reactor by microwave-excited flyash to generate hydroxyl and sulfate radicals which finally oxidize the rest of SO2, NO and HgO as well as NO2 and SO3 from pre-oxidization into a mixed solution of sulfuric acid, nitric acid and divalent mercury; the divalent mercury in the mixed solution enters a mercury separation tower to receive separation and recycling, while the sulfuric acid and nitric acid solution enters a neutralizing tower to generate ammonium sulfate and ammonium nitrate solution which finally enters an evaporative crystallization and separation tower, and solid ammonium sulfate and ammonium nitrate fertilizers are obtained by evaporative crystallization of a high-temperature flue gas waste heat utilization system. The system of the invention can provide efficient integrated desulfurization, denitrification and demercuration, the removal process is free of secondary pollution, and the system has a promising market application prospect.

The invention discloses a microorganism grouting and anchoring method and structure in which a partition plate is arranged in a cavity to form a pipeline. Two partitions are arranged to cross to divide the hollow cavity into multiple pipes for grouting. A transverse partition is arranged radially in the middle of the hollow cavity to block some of the pipes, and the hollow anchor rod is set on the side connected to the blocked pipe hole; inject the grouting fluid into the drill hole through the pipe; install the fixed object on the side wall of the anchor base, and install the nut on the hollow anchor rod to complete the anchor.

The invention discloses a groove-type cable bridge, comprising a groove frame and a shield arranged on the groove frame, wherein the groove frame comprises the following components in percentage by mass: C: 0.15-0.19%, Cr:1.0-3.0%, Si:2-4%, Al:0.5-0.9%, Ti:0.2-0.5%, Cu:0.05-0.08%, B:0.05-0.08%, Sb:0.1-0.3%, Mo:0.2-0.35%, Zr:0.03-0.05%, Zn:0.5-0.8%, Nb:0.05-0.07%, Mn:0.45-0.48%, S:0.003-0.005%, P:0.005-0.007%, V: 0.01-0.03%, rare element: 0.15-0.18%, the rest is Fe and inevitable impurities; the invention also designs an anticorrosion process of the groove cable bridge, which has good anticorrosion performance and long service life.

The invention relates to a novel modification system and process of a hot-dry-rock thermal reservoir, characterized by the combination of two stimulation measure processes, thermal stimulation and chemical stimulation. The process is characterized in that a naturally present fracture network is destructed by thermal stimulation to enhance permeability, partial minerals, scale and obstruction in shafts and fractures are dissolved by the chemical stimulation, and flow guiding capacity of the fractures is further improved. The repeating of the process enables a larger range of thermal reservoirs to be modified. By using the process, the problem of the prior art that after thermal stimulation, part of the fractures are closed along with the rise of the temperature of a cooling area and the problem that that a chemical stimulant disappears nearby an injection location during its excess speed of reacting with rock minerals at high temperature are solved, and the process enables greatly reduction in the risk of frequent microseism in a reservoir modification process when compared to traditional hydrofracturing. The process is widely applicable to the modification of hot-dry-rock thermal reservoirs.

The invention discloses an ultrasonic-assisted reservoir stratum chemical blockage removal experimental facility and an experimental method. The experimental facility comprises a rock core clamp holder, a ring compression feed device, an ultrasonic energy converter, an ultrasonic generator, a chemical reagent storage tank connected with a liquid inlet of the rock core clamp holder by a conveying pipeline, a water storage tank, an oil storage tank and a liquid container connected with a liquid outlet of the rock core clamp holder. The experimental method comprises the following steps of: 1, pretreating a tested rock core; 2, testing the initial permeability of the rock core through water drive; 3, polluting the rock core; 4, testing the permeability of the polluted rock core through the water drive; 5, performing an ultrasonic-assisted chemical reagent blockage removal experiment; 6, testing the permeability of the rock core subjected to the blockage removal through the water drive; 7,performing the ultrasonic-assisted chemical blockage removal experiment under the condition of ultrasonic oscillation with different frequencies and amplitudes; and 8, processing data. The ultrasonic-assisted reservoir stratum chemical blockage removal experimental facility has reasonable design, complete functions and high using effect, is easy and convenient to arrange and operate, and can realize the pulse fluctuation of the chemical blockage removal under the action of the ultrasonic oscillation.

The invention discloses a gas-liquid coaxial ejection liquid fuel electrostatic atomization nozzle. A needle-like corona charging electrode coaxial with a fuel corona charging chamber is placed in the fuel corona charging chamber, the right end of the fuel corona charging chamber is connected with an atomization swirler and a nozzle body which are coaxial with the fuel corona charging chamber, and the right end of the nozzle body is connected with a coaxial gas swirler. A left conical hole and a right conical hole which are coaxial and are communicated are formed right in the middle of the nozzle body. A conical atomization swirler is sleeved with the left conical hole of the nozzle body. The nozzle body is provided with a plurality of gas impact holes communicated with a gas inlet pipeline and the right conical hole of the nozzle body. The gas swirler is provided with a plurality of gas whirl flat holes communicated with the gas inlet pipeline and the outside. Corona discharge is carried out on the liquid fuel, the electrified liquid fuel is atomized through the static electricity and centrifugal force, the impact type auxiliary atomization is carried out on the liquid fuel through gas flow, the atomized drops interact with the air coaxially ejected after leaving the nozzle, and the combustion efficiency is improved.

The invention provides a magnetic acupuncture needle which comprises a magnetic core body and a magnetic sleeve with which the magnetic core body is sleeved. Magnetic induction intensity of the magnetic core body is larger than that of the magnetic sleeve, the magnetic core body is fixedly connected with the magnetic sleeve, the magnetic core body is rod-shaped, the magnetic core body and an N pole and an S pole of the magnetic sleeve are arranged in the axial direction, an N pole of the magnetic core body is close to the N pole of the magnetic sleeve, and an S pole of the magnetic core body is close to the S pole of the magnetic sleeve. According to the magnetic acupuncture needle, shapes of magnetic lines of force around the magnetic core body are improved through the magnetic sleeve where the magnetic core body is sleeved, the magnetic lines of force in the middle of the magnetic core body are gathered towards two ends of the magnetic core body and finally form a bundle shape at the two ends of the magnetic core body, the magnetic induction intensity of the ends of the magnetic core body is enhanced, the penetration distance of the magnetic lines of force at two ends of the magnetic core body is increased, and the magnetic acupuncture needle is suitable for performing magnetic acupuncture treatment on acupoints of the human body and is good in treatment effect.

An anion generator used in large space comprises a bridge rectification input circuit, a voltage-stabilizing integrated control circuit, a high-frequency transformer, an optocoupler voltage control circuit, a voltage-multiplying rectifier circuit, an anion release unit, a generator shell and a machine body shell. The bridge rectification input circuit, the voltage-stabilizing integrated control circuit, the high-frequency transformer, the optocoupler voltage control circuit, the voltage-multiplying rectifier circuit and the anion release unit are connected through wires and installed in the generator shell, and the generator shell is installed in the machine body shell. Due to combined action of the voltage-stabilizing integrated control circuit, the high-frequency transformer and the optocoupler voltage control circuit, stable and continuous high-frequency pulses are generated, the penetration distance of anions generated by follow-up circuits is greatly increased under the action of related circuits, work power is large, the anion release amount is large, the anion cast radius is long, high-concentration small-particle-size anions can be continuously released, and the anion generator can be used in large areas and space.