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232results about How to "Large discharge area" patented technology

Underground multi-stage intelligent high pressure gas pulse formation fracturing device and method thereof

The invention discloses an underground multi-stage intelligent high pressure gas pulse formation fracturing device and a method thereof, belongs to the technical field of fracturing completion of oil and gas wells, and particularly relates to two technical sachems of the device and the method. The method is used for fracturing the underground layer by the underground multi-stage intelligent high pressure gas pulse formation fracturing device. The device is controlled by each stage of intelligent pressure encoding detonator to gradually detonate by stages at proper time to generate a large amount of high pressure gas according to the set working mode, the dynamic high pressure pulse pressure is formed in the well or holes of a formation, the formation is fractured to form a plurality of cracks, and the permeability of fluid in the formation is increased, so the oil and gas are easily produced. The device and the method have the advantages that the cyclic multiple pressure pulses which are controlled at proper pressure can be generated, so the formation can generate the compression-expansion-compression alternating 'resonance', the cracks are promoted to effectively extend, and a new fracturing network is formed, so the permeability of the formation is improved; the pollution to the formation and environment in the fracturing process is avoided; the method is suitable for the water-sensitive and acid-sensitive formation; the construction cycle is short, the cost is low, the equipment is simple and convenient, and the limitation by terrain and water sources is avoided.
Owner:ZHONGBEI UNIV

Experimental simulation device for mining hydrate based on multi-branch hole technology

The invention discloses an experimental simulation device for mining hydrate based on multi-branch hole technology, which comprises a multi-branch hole mining unit, a temperature control unit, a gas injection unit, a liquid injection unit, an outlet separating and metering unit, a gas recovery unit and a data acquisiting and processing unit, the data acquisiting unit acquires relevant data of thetemperature control unit, gas injection unit and liquid injection unit and the like, and achieves the control of the temperature control unit, gas injection unit and liquid injection unit; multi layers of horizontal branch holes are arranged around through tapping at the lateral side of a central main well net, the horizontal branch holes are driven by the central main well net to jointly reduce the pressure for hydrate exploitation, the design form of the multi-branch holes is utilized to effectively increase the discharge area of the hydrate reservoir, and can completely simulate the formation of the hydrate reservoir, the layout of multi-branch holes, the pressure reduction of the multi-branch holes, the sand prevention and clogging prevention, the separation of gas-water-sand, and other processes, detailed experimental data is provided for detailed understanding of the mining efficiency and production characteristics and the like of the sea water hydrate multi-branch holes, and a theoretical basis for achieving the efficient mining, productivity evaluation, development scheme and process design optimization of the hydrate is provided.
Owner:QINGDAO INST OF MARINE GEOLOGY

Movable holder for silicon-based film solar cells

The invention discloses a movable holder for silicon-based film solar cells, which belongs to the technical field of solar cells. The movable holder mainly has the following technical characteristics that: a supporting housing is a movable housing with grounded side frames, a holder comprising electrode plates is mounted on the supporting housing, and anti-interference shield assemblies are arranged between holders or holder arrays. The triangular end surface of a signal feed-in module with a cylindrical waist is contacted with a signal feed-in port and positioned in a concave triangular surface in the central area of the back plane of the negative plate to feed in radio frequency / very high frequency power signals, and the positive plate is grounded. Each negative plate-shielding cover is provided with a through hole, and the negative plate is insulated from the shielding cover. The invention has the advantage that because of feed-in on the central surface of the electrode plate, the loss of one-point or multi-point feed-in, which is caused by the feeder distance, is avoided. When a radio frequency / very high frequency power supply is used for driving, a uniform electric field can be formed to stably discharge in a large area, standing wave and skin effects are effectively eliminated, consequently, the yield is increased, and the cost is reduced.
Owner:SHEN ZHEN TRONY SCI & TECH DEV CO LTD

Laser discharge chamber device of gas CO2 laser

The invention relates to a laser discharge chamber device of a gas CO2 laser, comprising a vertical plate at the right side of the chamber, a support frame plate on the chamber, an upper insulating frame plate on the chamber, an upper electrode plate, a ceramic insulating strip, an upper preionization triggering needle, a vertical plate at the left side of the chamber, a lower discharge electrode, the air inlet of a gas circulating path, a lower electrode plate, a lower preionization triggering needle, the air outlet of the gas circulating path, an end plate at the right side of the chamber and an end plate at the left side of the chamber. The device is characterized in that the laser discharge chamber is fixedly arranged on a sealed circulating work gas passage; electrical energy is injected by an energy-storing charge-discharge circuit so that the upper discharge electrode and the lower discharge electrode realizes even glow discharge in large area; and a plurality of pairs of upper ultraviolet light preionization triggering needles and lower ultraviolet light preionization triggering needles realize spark discharge to form the laser discharge chamber of the laser. The invention has small volume and compact structure, is convenient for repairing and installing the discharge electrode and the preionization triggering needles, leads a CO2 laser system to stably work for a long time so as to extend service life, and is fit for high-power gas lasers and pulse gas lasers.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Automotive water cooled type NTP generation system

InactiveCN105251323AIncrease the active gas concentrationImprove stabilityDispersed particle separationFeedback circuitsAlternating current
The invention provides an automotive water cooled type NTP generation system which comprises a power supply part, an NTP generator, a diesel engine system, an air inlet and outlet system and a cooling system. The power supply part comprises a diesel engine storage battery, an inverter, an intelligent electronic impact machine, a voltage regulator and an oscilloscope. The inverter inverts 12 V direct current voltage into 220 V alternating current, and then the voltage regulator and the oscilloscope are used for frequency modulation and voltage regulation. A voltage stabilizing box and an MFC are mounted on the air inlet and outlet system for accurately controlling the air inlet flow. The cooling system uses an infrared thermometer for monitoring the temperature of a discharging area in real time, the flow of a pump is controlled by a feedback circuit, and the temperature of the discharging area is controlled. Active gas generated by the NTP generator is sprayed into an exhaust pipe by a nozzle mounted on the exhaust pipe. According to the automotive water cooled type NTP generation system, not only can NOx in diesel engine exhaust gas be reduced, but also DPF regeneration can be reduced; working is stable, the concentration of a generated active substance is high, the conversion efficiency of harmful gas is high, a catalyst is not required, and the system is free from the limit of fuel quality.
Owner:JIANGSU UNIV

Double-air-gap ozone generating device

A double-air-gap ozone generating device comprises a barrel-shaped outer electrode, an inner electrode which is arranged inside the outer electrode, a left pattern plate, a right pattern plate, a medium pipe which is arranged between the outer electrode and the inner electrode, a left end cover, a right end cover and an electrode which penetrates through the left end cover and is connected with the inner electrode, wherein the left pattern plate and the right pattern plate are used for supporting the outer electrode, the left end cover and the right end cover are used for fixing the inner electrode, the outer electrode and the medium pipe, the gap between the outer electrode and the medium pipe is an outer gap, the gap between the medium pipe and the inner electrode is an inner gap, three position limiting steps are arranged on one sides, oppositely arranged, of the left end cover and the right end cover, and axial grooves are formed in the left end cover and the right end cover along the axial line direction. The double air gap ozone generation device has the advantages that under the situation that the size of the volume of a discharging unit is unchanged, the size of discharging area is multiply increased, ozone concentration and ozone generating efficiency are improved, and the manufacture cost and the operation cost of the ozone generator are reduced.
Owner:JIANGSU KONER OZONE
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