47results about How to "Improving pulse performance" patented technology

The invention discloses a method and device for cleaning space debris. According to the method, electromagnetic force is applied to the space debris running on an original orbit; the speed and / or direction of the space debris are / is changed under the action of the electromagnetic force; the space debris of which the speed is changed is changed to run on a new orbit under the action of gravity; at least the height of the perigee of the space debris on the new orbit is smaller than the height of the perigee of the space debris on the original orbit; the space debris running on the new orbit finally falls into the atmosphere of the earth under the action of atmosphere resistance. The device comprises a satellite bearing platform which is provided with an electric field device cleaning the space debris or a magnetic field device cleaning the space debris or a combination of the electric field device and the magnetic field device. The method and device for cleaning the space debris do not have high requirements for the accuracy of position detection of the space debris, micro space debris can be effectively cleaned, solar energy can be fully utilized for power generation, and self-carried energy is saved. The device for cleaning the space debris has the advantages of being simple in structure, low in manufacturing cost, and better in pulse action effect.

The invention discloses a high-pressure self-oscillation oscillating impulse jet flow nozzle with continuous adjustable cavity length. The high-pressure self-oscillation oscillating impulse jet flow nozzle comprises an inlet nozzle, an adjusting ring, a base and an outlet nozzle, wherein the base is an inner hollow cylinder; the inner cavity of the cylinder is a cylindrical oscillating cavity; the upper end of the inlet nozzle is connected with a high-pressure pipe by external threads arranged on the cylindrical face of the end part of the upper end; the middle of the inlet nozzle is spirally connected with inner ring threads of the adjusting ring by external threads arranged on the outer cylindrical face of the middle; the lower end of the inlet nozzle is spirally screwed into the oscillating cavity of the base; the base is fixedly connected with the adjusting ring and the outlet nozzle respectively by screws, through holes formed in the upper and lower bottom faces of the base, a through hole formed in the adjusting ring and a through hole formed in the outlet nozzle. The high-pressure self-oscillation oscillating impulse jet flow nozzle with the continuous adjustable cavity length has the advantages that aiming at different working pressures, the cavity length of the oscillating cavity can be continuously adjusted by rotating the base, and thus the continuous jet flow is changed into strong impulse jet flow; each part of the nozzle is easily processed, and the replacement is convenient.

The invention relates to a turbine ascending pipe and a processing method thereof. The raw material comprises acrylate rubber, stearic acid, fast extruding carbon black N550, dibutyl adipate plasticizer, complexing organic alkyl acid internal release agent, antiager 4,4-double diphenylamine, vulcanizing agent hexamethylene diamine formate and accelerator melaniline. In parts by weight specified by a rubber formula, all rubber and corresponding auxiliary materials are burdened, a banbury mixer two-step rubber mixing technology is adopted for production to ensure that the appearance of glue stock is light after mixed, and the glue stock is evenly mixed. A production method of integrating inner rubber extrusion, weaving and outer rubber extrusion is adopted so that the production technology is simplified, cost is saved and operation is more convenient. The turbine ascending pipe obtains the optimal material performance combination, satisfies the comprehensive requirement of the use performance, the production cost and the like of the product, and satisfies the required use temperature of 180 DEG C-220 DEG C; and meanwhile, the rubber layer and aramid line have the characteristic of high bonding strength and the product is better in pulse performance.

The invention discloses an inner glue and rubber mixed material for high-performance steel wire-wound hydraulic rubber tubes and a preparation method thereof, belonging to an inner glue and rubber mixed material and solving the technical problem of poor pulse performance of the finished products of hydraulic rubber tubes. The inner glue and rubber mixed material is prepared from the following raw materials in parts by weight: 95-115 parts by weight of butadiene-acrylonitrile rubber, 6-10 parts by weight of active agent, 4-6 parts by weight of resin, 1-2 parts by weight of anti-aging agent, 40-60 parts by weight of high-dispersion and low-structure carbon black, 6-8 parts by weight of chemical plasticizer and 3.5-3.9 parts by weight of vulcanizing accelerator. The preparation method comprises the following steps: (1) primary refining: refining the butadiene-acrylonitrile rubber for 5-6 minutes at 95 -100 DEG C in an airtight rubber refining machine; (2) mixed refining: adding the active agent, the resin, the anti-aging agent, the high-dispersion and low-structure carbon black and the chemical plasticizer for mixed refining of 9-11 minutes at 100 -110 DEG C, discharging the mixed rubber and placing the mixed rubber on a refining machine to be rolled for 2-3 times and cooling the mixed rubber to 45 -55 DEG C; and (3) vulcanization: adding the vulcanizing accelerator, carrying out three-time packaging, two-time rolling and one-time thinning on an open type rubber refining machine, discharging sheets after achieving the roll distance of 0.4-0.6 mm, extruding the placed sheets, and vulcanizing the sheets for 35-45 minutes at 148-152 DEG C.

The pulse double-fluid water fog extinguishing gun is one fast and efficient fire extinguishing set belonging to the field of public safety emergency aid equipment. It includes a sprayer, a sprayer casing, a spraying pipe, an inner core, a gun body, a middle shaft, a sealing ring, a bearing, an air inlet pipe, an airflow switch, a rotary valve, a retaining block, a water inlet pipe, a water flow switch, a back seat, a connecting block, a fixing nut, a spring, a button switch, a retainer ring, an air inlet hole, a water inlet hole and a notch. The pulse double-fluid water fog extinguishing gun has great extinguishing impact force, high pulse effect, small water fog particle, low water flow loss, high fire controlling power and high extinguishing effect. It is suitable for extinguishing fire of solid, oil and electric equipment.

Process and device for reducing an ignition voltage of power pulses in plasmas operated in a pulsed manner with long pulse-off times. The process includes generating a power pulsed plasma at a pulse duty factor, the pulse duty factor being a ratio of pulse-on time to pulse-off time, and at least before the beginning of the pulse-on time of the power pulses, producing charge carriers using an additional plasma discharge at a lower power than that of the power pulses. The device includes a vacuum chamber including at least one pump system, an arrangement for producing plasma, the arrangement including at least one anode and at least one cathode, an energy source connected to the cathode and the anode which can be pulsed in the frequency range of between approximately 10 Hz to approximately 1 MHZ, and a mechanism for one of producing an additional plasma discharge.

The invention provides a self-oscillation type pulse cyclone supercharger. The self-oscillation type pulse cyclone supercharger comprises a shell, an air inlet adjusting pipe, a left end cover, a pulse cyclone blade, an air outlet adjusting pipe and a right end cover; a main air inlet and a main air outlet are formed in the left end and the right end of the shell correspondingly; the left end cover and the right end cover of the shell are fixed through an M8 screw; the pulse cyclone blade is arranged inside the shell; the air inlet adjusting pipe is installed at the left end of the pulse cyclone blade; the air outlet adjusting pipe is installed at the right end of the pulse cyclone blade; two supporting leg bases are welded to the shell; the pulse cyclone blade comprises a center sleeve pipe and a cyclone blade arranged at the concave portion of the center sleeve pipe; particles and gas in the center sleeve pipe flow in the axial direction; a pulse cyclone air flow is formed between the shell and the pulse cyclone blade; and an auxiliary supplementing air inlet is formed in the shell and is in G1 pipe threaded connection. The self-oscillation type pulse cyclone supercharger is wide in application range, can reduce the minimum conveying speed of the particles, relieve the pipe abrasion, reduce particle crushing and avoid pipe blockage, and is suitable for pneumatic long-distance conveying of material particles.

The invention discloses a method and a device for removing space debris. The method is to apply electromagnetic force to the space debris running in the original orbit; the size and / or direction of the speed of the space debris change under the action of the electromagnetic force; ; The perigee height of the space debris at least in the new orbit is lower than the perigee height of the space debris in the original orbit; the space debris in the new orbit will eventually fall into the earth's atmosphere under the action of atmospheric drag. The device includes a satellite carrying platform; the satellite carrying platform is provided with an electric field device or a magnetic field device or a combination of the electric field device and the magnetic field device for removing space debris. The present invention does not require high precision for space debris position detection, can effectively remove tiny space debris, can fully utilize solar energy to generate electricity, saves energy, and has the beneficial effects of simple structure, low manufacturing cost and better pulse effect.

The invention relates to an electric power cable connecting structure and an insulating part. The insulating part (19) is roughly a tubular part consisting of a main body part (41), a copper tube (15b), a conductor (22) and the like. The main body part (41) is an insulating body made of a material such as a resin. One end part of the copper tube (15b) is buried in the main body part (41) which is integrated with the copper tube (15b). One position of the part, buried in the main body part, of the copper tube is connected to the conductor (22) in a welded manner. The conductor bends in the main body part (41) and protrudes on the end face of the main body part (41). The conductor is connected in the radial direction at the outer circumferential face of the copper tube (15b) and bends in the main body part (41) through an angle of 90 degrees in a direction in which the copper tube (15b) protrudes. Thus, the end part of the conductor (22) protrudes in the axial direction of the connected electric power cable and the direction in which the copper tube (15b) protrudes.

The invention belongs to the field of industrial pipes and in particular relates to a high-pressure hose for an air compressor. The high-pressure hose comprises a PVC (Poly Vinyl Chloride) flexible glue layer (1), a polyester thread layer (2), a steel wire braid layer (3), a fluorine rubber and silicone rubber layer (4) and a fluorine rubber layer (5); wherein the fluorine rubber and silicone rubber layer (4) is wrapped outside the fluorine rubber layer (5), the steel wire braid layer (3) is wrapped outside the fluorine rubber and silicone rubber layer (4), the polyester thread layer (2) is pasted outside the steel wire braid layer (3), and the PVC flexible glue layer (1) is pasted outside the polyester thread layer (2). The high-pressure hose has favorable resistance to oil, heat and ageing, high pressure bearing capability and favorable pulse property, and is suitable to massive equipment to use.

The invention relates to a power transformer body and on-load tap-changer integrated chromatography online monitoring device which is arranged in a stainless steel shell and comprises a transformer body chromatography detection assembly, an on-load tap-changer chromatography detection assembly, a micro-processing assembly and a power module. During monitoring, oil-gas separation is carried out on an oil sample in the transformer body or on-load tap-changer chromatographic detection assembly through the oil-gas separation module, separated gas components are detected through the gas detection module, then the oil sample is filtered through the filtering module and then input into the transformer body and the on-load tap-changer, and whole oil circulation is achieved; and then a data processing module in the micro-processing assembly is used for carrying out optimization processing on the signals, and finally data is transmitted to a cloud platform through a data transmission module. The device adopts a stainless steel shell, has the advantages of strong anti-interference capability and strong corrosion resistance, and meanwhile, the Internet of Things technology is used for accessing data to a cloud platform, so that the target of monitoring the running state in real time is realized.

Process and device for reducing an ignition voltage of power pulses in plasmas operated in a pulsed manner with long pulse-off times. The process includes generating a power pulsed plasma at a pulse duty factor, the pulse duty factor being a ratio of pulse-on time to pulse-off time, and at least before the beginning of the pulse-on time of the power pulses, producing charge carriers using an additional plasma discharge at a lower power than that of the power pulses. The device includes a vacuum chamber including at least one pump system, an arrangement for producing plasma, the arrangement including at least one anode and at least one cathode, an energy source connected to the cathode and the anode which cab be pulsed in the frequency range of between approximately 10 Hz to approximately 1 MHz, and a mechanism for one of producing an additional plasma discharge.

The invention discloses timed-release preparation consisting of a core tablet and a coating, which is characterized in that the coating contains retarder of stearate,. The invention also discloses a method for preparing the timed-release preparation; the coating of the timed-release preparation can be suppressed through direct powder sintering or wet granulation. The timed-release preparation of the invention can prohibit the rapid release of the preparation, obviously prolong the time delay and maintain comparatively better pulse effect. The wet granulation used for suppressing the coating adopted by the preparation method of the invention can reduce the consumption of framework material and decrease the viscosity during the granulation process so that the method is convenient for the granulation.

The invention relates to a spraying pipe for hydraulic deep-penetrating drilling. The spraying pipe sequentially comprises an inner rubber layer, a steel wire winding layer, a middle rubber layer, an oil immersion fabric layer and a metal-armour-protection outer layer from inside to outside in the radial direction. The spraying pipe for hydraulic deep-penetrating drilling is high in strength and large in rigidity, the axial thrust and the rotation torque can be provided, the reliability and the applicability of the hydraulic deep-penetrating technology are enhanced, the structure is reasonable, and the spraying pipe is suitable for the hydraulic deep-penetrating drilling technology; under the high-pressure jet flow effect, additional rotation spraying and the composite boosting effect can be overlaid, the rock breaking problem of a hard stratum can be solved, the capacity of a hydraulic spraying tool is improved, and the requirements of practical applications can be well met.

The invention discloses a dual-component attitude-controlled thruster injector with a micro-flow-channel liquid collecting cavity. The dual-component attitude-control thruster injector comprises an oxygen path connecting nozzle, a combustion path connecting nozzle, an injector structure body and a thrust chamber butt joint interface; the oxygen path connecting nozzle, the combustion path connecting nozzle and the thrust chamber butt joint interface are integrally connected with the injector structure body; the oxygen path connecting nozzle is located on one side of the upstream end face of theinjector structure; the combustion path connecting nozzle is located on the other side of the upstream end face of the injector structure; the thrust chamber butt joint interface is located on the downstream end face of the injector structure; one end of an injector oxygen path flow channel communicates with the oxygen path connecting nozzle, and the other end of the injector oxygen path flow channel communicates with the thrust chamber butt joint interface. The dual-component attitude-controlled thruster injector produces high quality atomization, and enables an oxidant and a combustion agent to be efficiently blended and combusted in a thrust chamber.

The invention discloses a domestic pulsed toothwash machine. According to the domestic pulsed toothwash machine, a water pump motor is a 12V direct-current motor, a micro-motor with a working current of 1A provides power for a water pump body, a water inlet in the water pump body is communicated with a water tank, and a water outlet of the water pump body is communicated with a handle nozzle through a hose; the water pump body is provided with a modularized pump body; the water pump motor is connected with a worm-worm gear speed reduction device, an eccentric gear is directly driven to drive a piston body to carry out the pulsed circulation working of the water pump, a water flow with a pulse of 1200 times / min and a weight of 0.8KG can be generated for cleaning dirt and residues on gap and roots of teeth. The domestic pulsed toothwash machine has a fast cleaning effect on dental plaque and has an assistant curative effect on patients with periodontitis to a certain extent.

The invention discloses a high-pressure self-oscillation oscillating impulse jet flow nozzle with continuous adjustable cavity length. The high-pressure self-oscillation oscillating impulse jet flow nozzle comprises an inlet nozzle, an adjusting ring, a base and an outlet nozzle, wherein the base is an inner hollow cylinder; the inner cavity of the cylinder is a cylindrical oscillating cavity; the upper end of the inlet nozzle is connected with a high-pressure pipe by external threads arranged on the cylindrical face of the end part of the upper end; the middle of the inlet nozzle is spirally connected with inner ring threads of the adjusting ring by external threads arranged on the outer cylindrical face of the middle; the lower end of the inlet nozzle is spirally screwed into the oscillating cavity of the base; the base is fixedly connected with the adjusting ring and the outlet nozzle respectively by screws, through holes formed in the upper and lower bottom faces of the base, a through hole formed in the adjusting ring and a through hole formed in the outlet nozzle. The high-pressure self-oscillation oscillating impulse jet flow nozzle with the continuous adjustable cavity length has the advantages that aiming at different working pressures, the cavity length of the oscillating cavity can be continuously adjusted by rotating the base, and thus the continuous jet flow is changed into strong impulse jet flow; each part of the nozzle is easily processed, and the replacement is convenient.

The invention relates to a pilot valve lower valve clack split-structure pilot operated safety valve which comprises a main valve and a pilot valve, wherein the main valve comprises a main valve body, a guide sleeve, a main valve clack, a main valve cap, a main valve spring, a main connecting pipe, a main valve seat, a main valve limit screw and the like; and the pilot valve comprises a pilot valve body, a pilot valve seat, a pilot valve cap, a pilot valve guide sleeve, a seal locating ring, an upper valve cap, an adjusting bolt, a valve stem, a guide valve clack, a lower spring seat, an upper spring seat, an upper spring, a locking nut, a locating sleeve, an adjusting casing, a lower valve clack shaft, a lower valve clack disk, a lower spring, a lower seal ring, an upper seal ring, an upper guide post and a lower guide post. The pilot valve lower valve clack adopts the split structure, thereby enhancing the pulse effect and synchronization sensitivity of the pilot valve, and ensuring the various action properties and sealing reliability of the pilot operated safety valve. The pilot valve lower valve clack split-structure pilot operated safety valve is suitable for high-pressure high-discharge-capacity high-discharge-back-pressure working conditions in need of quick pressure relief.

The invention discloses an effluent device with three-dimensional dynamical changing spray. The effluent device comprises a body. A water outlet hole group is arranged on the body. The water outlet hole group comprises a first water outlet hole, a second water outlet hole and a third water outlet hole. The first water outlet hole is a constant water outlet hole, the second and third water outlet holes are intermittent water outlet holes, at most one of the second and third water outlet holes can discharge water, and water flows of the second and third water outlet holes can be gathered with awater flow of the first water outlet hole. According to the effluent device with three-dimensional dynamical changing spray, the user experience is enhanced.

The invention discloses timed-release preparation consisting of a core tablet and a coating, which is characterized in that the coating contains retarder of stearate,. The invention also discloses a method for preparing the timed-release preparation; the coating of the timed-release preparation can be suppressed through direct powder sintering or wet granulation. The timed-release preparation of the invention can prohibit the rapid release of the preparation, obviously prolong the time delay and maintain comparatively better pulse effect. The wet granulation used for suppressing the coating adopted by the preparation method of the invention can reduce the consumption of framework material and decrease the viscosity during the granulation process so that the method is convenient for the granulation.

The invention discloses ethylene-acrylate rubber resistant to 200 DEG C, low in pressure change and high in pulse. According to the technical scheme, the ethylene-acrylate rubber is prepared from, by weight, 80-120 parts of ethylene-acrylate rubber, 1-3 parts of stearic acid, 1-3 parts of liquid antioxidant, 1.5-4.5 parts of auxiliaries, 50-80 parts of carbon black and 20-40 parts of functional reinforcing agent. The invention has the advantages that the formula of the rubber is optimized, oxygen free radicals are effectively captured, and the free radicals are prevented from damaging the molecular structure of a high polymer and causing degradation of the high polymer, so that the liquid oxidant and the rubber have better compatibility; the heated ceramic micro powder is beneficial to combination of rubber, carbon black and various auxiliaries, the service life of the turbocharging pipe under extremely severe conditions is greatly prolonged, and the safety and practicability of the turbocharging hot end pipe assembly can be improved.

The invention belongs to the technical field of rubber hoses, and particularly relates to a power steering high-pressure hose, which comprises an inner rubber layer, an enhancement layer, a middle rubber layer, an enhancement layer and an outer rubber layer which are arranged from inside to outside, wherein the inner rubber layer comprises the following components in parts by mass: 50-100 parts of chlorosulfonated polyethylene, 2-10 parts of active magnesium oxide, 1-6 parts of pentaerythritol, 1-4 parts of anti-aging agent, 2-8 parts of dispersing agent, 80-130 parts of semi-reinforcing carbon black, 10-50 parts of activated light calcium carbonate, 20-50 parts of plasticizer, 0.2-1 part of accelerant, and 0.5-5 parts of cross-linking agent; the cohesiveness of yarns and rubber is good, and through tests, the yarns and the rubber cannot be separated and can be integrally torn when being forcedly separated; the inner rubber layer is excellent in physicochemical property, the enhancement layers select rayon, hose expansion capacity is ultra low, the inside volume expansion is as low as 1.13ml / m, adhesive force inner rubber, middle rubber and outer rubber tear is realized, and the pulse performance is good.

The invention relates to the technical field of radio long wave communication technology, and specifically relates to an extremely-ultra low frequency channel atmosphere noise suppression method based on variance median filtering. The extremely-ultra low frequency channel atmosphere noise suppression method based on variance median filtering includes the steps: constructing a multi-reference magnetic vector sensing system, synchronously receiving extremely-ultra low frequency signals through multi channels, and obtaining a magnetic induction output sampling point matrix X; according to the channel sampling point sequence, grouping X, estimating the variance of each group, and obtaining the variance matrix D; based on a large number decision criterion, performing pulse detection and two-stage adaptive median filtering on D; according to output of the second stage median filtering and input of the first stage median filtering, performing sequence reconstruction, and obtaining an output matrix Y; and performing power frequency harmonic interference and remaining atmosphere noise suppression on Y. As the extremely-ultra low frequency channel atmosphere noise suppression method based on variance median filtering taking the variance of the sampling point group as input of the adaptive median filter, the impulsiveness is improved. As the extremely-ultra low frequency channel atmosphere noise suppression method based on variance median filtering determines the pulse state of each element of the variance matrix based on the large number decision criterion, the pulse detection accuracy is improved and the defect that the performance is low when the median filtering is in the local high density pulse noise condition in the traditional method.

The invention relates to the technical field of processing aids for rubber products, in particular to a high-temperature and high-pressure-resistant rubber tube middle rubber and inner rubber comprehensive accelerator and a preparation method thereof; in parts by weight, the following raw materials are included: 20-26 parts of mixed rubber material, 0.8-1.2 parts of reinforcing agent, 1.5-2.0 parts of nano filler, 2.5-3.6 parts of performance enhancer, 1.0-1.5 parts of nano-molybdenum disulfide, 10-15 parts of zinc diphosphate, 12-20 parts of sulfenamide accelerator , 2-8 parts of thiazole accelerators, 5-10 parts of N-cyclohexylthiophthalimide, 12-20 parts of 4,4'-dithiodimorpholine, 3-10 parts of blowout preventer Cream, 1-3 parts of dispersant and 25-35 parts of insoluble sulfur; the comprehensive accelerator prepared by the present invention is used as the raw material for preparing rubber hose, so that the prepared rubber hose not only has good anti-ultraviolet, anti-aging and anti-yellowing It also has good antibacterial, anti-mildew properties, mechanical properties, high temperature resistance, oil resistance, and high pressure resistance.

The invention provides a positive pulse generator. The positive pulse generator comprises a shell, an electromagnetic valve assembly, a pressure transmission assembly, a supporting and guiding assembly and pulse conversion assemblies, wherein the electromagnetic valve assembly, the pressure transmission assembly and the pulse conversion assemblies are all located in the shell and sequentially arranged in the axial direction of the shell, and the shell is connected with the pressure transmission assembly through the supporting and guiding assembly; the electromagnetic valve assembly comprises afirst electromagnetic valve used for driving part of components in the pressure transmission assembly to move, so that pressure liquid in the pressure transmission assembly drives the pulse conversion assemblies to generate pulses; the pulse conversion assemblies comprise the first pulse conversion assembly and the second pulse conversion assembly, the first pulse conversion assembly is connectedwith the pressure transmission assembly, and the second pulse conversion assembly is located in the first pulse conversion assembly and is in sliding fit with the first pulse conversion assembly. Thepositive pulse generator provided by the invention has high stability.