22 results about "Pulser pump" patented technology

The invention discloses a rock pulse fracturing and high-voltage pulse discharge collaborative fracturing simulation device and method.The device comprises a triaxial loading mechanism, a pulse fracturing mechanism, a high-voltage pulse discharge mechanism, a collaborative control part and a monitoring mechanism, and the triaxial loading mechanism is used for loading triaxial pressure to a rock sample; a simulation hole is formed in the upper end surface of the rock sample, and a plug is plugged at the hole opening of the simulation hole; the pulse fracturing mechanism comprises a fracturing fluid storage tank and a pulse pumping assembly; the high-voltage pulse discharge mechanism comprises a Marx generator and a discharge electrode; the monitoring mechanism comprises a plurality of acoustic emission sensors and an acoustic emission data processor. The influence of the synergistic effect of pulse fracturing and high-voltage pulse discharge on the rock fracturing process can be systematically studied, the synergistic effect mechanism of the two is disclosed by accurately controlling the fracturing fluid release rhythm and the high-voltage pulse discharge rhythm, a parameter optimization basis is provided for field fracturing operation, the fracturing effect is improved, and the rock fracturing efficiency is improved. The mining cost is reduced.

The present invention discloses a bistable pulsed air pump and a method for pumping air by the pump. The bistable pulsed air pump includes a steady-state switching device, a lower support plate, a support frame, a first side baffle and a second side baffle. The lower support plate and the steady-state switching device are both installed on the support frame. The steady-state switching device includes a power element, a rotating body, a spring steel strip and an air storage bag. The rotating body can rotate under the drive of the power element. One end of the spring steel strip is fixed to one end of the lower support plate, and the other end is fixed to the rotating body. The spring steel strip is bent. The air storage bag is fixed between the lower support plate and the spring steel strip. The present invention uses the bending deformation of the spring steel strip to pump air and inhale air into the air bag. Since there is a critical position between the two steady states of the spring steel strip, it will deform rapidly under the action of elastic force after passing through the critical position, so as to achieve the effect of pulsed air pumping; in addition, since the present invention can remain standby under the condition of zero power of the power element after the air pumping is completed or the air inhalation is completed.

Methods and systems for transferring hydraulic power between a pump and an actuator. The actuator (3, 13) has an inlet (7) and an outlet (8) for hydraulic fluid, an actuator circuit between the inlet and the outlet and outside the actuator, in which the hydraulic fluid circulates from the outlet (8) to the inlet (7). The pulse pump (1) is used to generate a pressure pulse of a desired frequency and to transmit hydraulic power to the actuator (3, 13) by means of the pressure pulse by converting the pressure pulse into a flow to the inlet (7) of the actuator. The return flows from the actuators are returned during cycles between the pressure pulses for use in the pressure pulses following each return flow, whereby an amount of hydraulic fluid corresponding to the volume of the pressure pulses moves back and forth across the cross-sectional flow region in the power transfer conduit or hose (2) between the pulse pump (1) and the actuators (3, 13).

The present invention provides a pulse pump and grouting system suitable for tunnel / tunnel grouting, relating to the technical field of cement slurry pumping devices, and comprising a housing, the housing being divided into a crankshaft power chamber and a slurry pumping chamber by a partition, wherein an inlet and outlet assembly block is fixedly installed in the slurry pumping chamber. The present invention adopts a variable diameter pumping cylinder, which can adjust the diameter of the cylinder according to the resistance and pressure of the cement slurry. When the pumping resistance is large, the diameter of the pumping cylinder can be reduced to reduce the starting pressure. When entering the stable pumping stage, the cylinder diameter is increased to ensure the pumping volume. This design can adaptively adjust the density of the cement slurry, ensuring a smooth pumping process while reducing the burden on the pumping power mechanism, and significantly improving the pumping performance of the cement slurry.

The application discloses a diffusion tube liquid level maintaining device, which comprises a diffusion tube, a support, a liquid level detecting unit, a liquid supplementing micro pulse pump and a sampling micro pulse pump, the outer side of the diffusion tube is provided with the support, the liquid level detecting unit comprises a liquid level sensor, a support above the liquid level sensor, a support above the liquid level sensor, a support below the liquid level sensor, a locking bolt of the support above the liquid level sensor and a locking bolt of the support above the liquid level sensor, and the diffusion tube and the liquid level detecting unit are both installed on the support. In order to better use the diffusion tube liquid level maintaining device, the absorption liquid is manually injected into the diffusion tube, so that the liquid level reaches the expected position, then the mechanism part of the liquid level detecting unit is adjusted, so that the liquid level sensor can detect the liquid level position, at this time, the test program of the liquid level sensor is started, and the detection work is carried out, so that the liquid level of the absorption liquid is basically maintained in the fixed height range.

This invention discloses a device and method for real-time thermal focal length measurement of a long-pulse LDA side-pump module. The device includes a detector source, a beam expander system, an LDA side-pump module, a knife edge, an energy meter, and a signal generator. The detector source serves as the detection light source for thermal focal length measurement; the beam expander system serves as a beam expander for the detector source size; the LDA side-pump module serves as a heat source generator to achieve high peak power pump injection under long-pulse pumping; the knife edge is placed on both sides of the beam waist position after the detector source passes through the LDA side-pump module to cut the transverse and longitudinal beams, achieving beam size characterization; the energy meter is placed in the rear region of the measurement device to acquire the energy measurement of the detector source; and the signal generator serves as a timing control part to achieve timing synchronization between the detector source and the LDA side-pump module. This invention uses timing synchronization combined with Gaussian beam transmission transformation to obtain the thermal focal length value of the long-pulse LDA side-pump, which has the advantages of simple structure, ease of operation, and high measurement accuracy.

The utility model provides an ear canal flusher, which belongs to the field of medical supplies and comprises a holding rod, a flushing component and a collecting component. The bottom of the holding rod is provided with a base, the bottom of the base is connected with a medicament bottle, the micro pulse pump is arranged in the holding rod, one end of the micro pulse pump is connected with a water inlet pipe, the water inlet pipe is placed in the medicament bottle, and after the micro pulse pump works, a flushing liquid agent in the medicament bottle is pumped through the water inlet pipe; flushing liquid is conveyed into the connector through the water conveying pipe connected to the top of the micro pulse pump, the silica gel flushing nozzle is arranged at one end of the connector in a sleeving mode, the silica gel flushing nozzle is soft, does not hurt ears and can stretch into ear canals to facilitate flushing, the micro pulse pump can continuously pump the flushing liquid in a pulse mode, frequent manual flushing liquid suction is not needed, and the flushing efficiency is improved. Continuous flushing is achieved, and the cleaning effect is guaranteed.

An ibuprofen production catalyst recovery device comprises a leading-in pipeline, the leading-in pipeline is connected with a circulation cavity, a leading-out filter screen is arranged on one side of the circulation cavity, a flushing pipe is arranged below the circulation cavity, a flushing tank is arranged below the flushing pipe, the flushing tank is communicated with the upper portion of the flushing pipe through a pulse pump, and the pulse pump is communicated with the lower portion of the flushing pipe. And a leading-out pipeline is arranged at the bottom of the circulating cavity. The mode that the pulse pump is matched with the flushing pipe is adopted, pulse type cleaning can be carried out, compared with original continuous cleaning, flushing can be more effective, blockage can be avoided, and the device is suitable for recycling a catalyst after the ibuprofen condensation reaction.

The utility model relates to the field of waste gas treatment, in particular to batting dust filtering and purifying equipment for waste gas treatment, which comprises a purifying box, an exhaust box is arranged on the upper surface of the purifying box, a pulse pump is arranged on one side of the side wall of a box body of the exhaust box, and an exhaust cavity is formed in the exhaust box. The filtering and purifying unit capable of filtering and purifying fluff dust is arranged in the purifying box, the filter cartridge is in an up-and-down movable type, and therefore the communicating state of the purifying cavity and the exhaust cavity can be changed, and the air injection mechanism is arranged in the filter cartridge and matched with the pulse pump communicated with the air injection mechanism; when batting dust attached to the filter cartridge needs to be cleaned, compressed air is blown out through the pulse pump and then is sprayed out through the air spraying pipe, and air in the direction is blown out from the filter cartridge, so that the batting dust on the filter cartridge is blown down, effective cleaning of the filter cartridge is achieved, in the cleaning mode, workers do not need to enter the purification cavity for cleaning, and the cleaning efficiency is improved. The cleaning mode is more convenient and efficient.

A source control arrangement for a radiation source including a hollow-core photonic crystal fiber (HC-PCF) having a hollow core with a core diameter, the arrangement including a pulse chirping arrangement configured to receive pulsed pump radiation and controllably chirp the pulsed pump radiation so as to output chirped pulsed pump radiation for exciting a working medium within the hollow core of the fiber at a pressure. The arrangement operable to configure one or more source parameters of the radiation source, which include one or both of the pressure and a pulse chirp parameter, such that the chirped pulsed pump radiation undergoes a spectral broadening process within the HC-PCF, thereby generating an output radiation having a predefined spectrum for a reference core diameter of the HC-PCF, so as to compensate for variation in the core diameter with respect to the reference core diameter.

The invention discloses a carbon tetrafluoride catalytic hydrolysis method based on pulse water pumping, belongs to the field of environmental catalysis, and aims at solving the problems that traditional CF4 catalytic hydrolysis is high in water consumption and low in decomposition rate, and a catalyst is prone to inactivation. A pulse pump system containing a gas supply unit, a water vapor supply unit and a catalysis unit is adopted, after a catalyst is filled, parameters are set through a control system to achieve pulse intermittent water supply, mixed gas containing CF4 is introduced and heated, CF4 is subjected to catalytic hydrolysis under the action of the catalyst, tail gas is treated, and fluorine is recycled. According to the method, the CF4 decomposition rate can be increased to 99%, the service life of the catalyst can be prolonged to 50 h, water consumption is low, and the method is suitable for fluorine-containing tail gas treatment in the industries of electrolytic aluminum and semiconductors.

This application provides a vacuum potting device and method for improving potting quality, relating to the field of electronic packaging equipment technology. By incorporating a continuous feeding mechanism between the feeding chamber, auxiliary vacuum chamber, and vacuum chamber, and integrating a dynamic flow state reconfiguration anti-wall-sticking self-cleaning module (spiral glue delivery pipeline + pulse pump group + temperature control closed loop) of the glue supply system, as well as an in-situ plasma treatment module within the vacuum chamber, a perfect combination of zero glue residue in delivery, efficient and continuous product transfer, and zero gas film at the potting interface is achieved. This application completely eliminates two major defects: wall-sticking curing and microscopic gas film at the interface, significantly improving potting quality, production efficiency, and product reliability, and is particularly suitable for potting high-voltage power modules.

The present invention relates to the field of semiconductor device manufacturing and processing, and specifically to a chip cleaning device and cleaning method based on pulse-free pump liquid supply. The chip cleaning device based on pulse-free pump liquid supply includes a control cabinet and a box body arranged on the control cabinet, and also includes: a horizontal table, rotatably installed in the box body, for placing wafers to be cleaned, and the horizontal table is provided with a plurality of stabilizing mechanisms for limiting the wafers, the rotating shaft of the horizontal table is connected to a variable speed drive mechanism installed in the box body, and the variable speed drive mechanism can drive the horizontal table to rotate at different speeds; this device can integrate cleaning and rinsing functions, and when the spray medium is switched from cleaning liquid to ultrapure water, the rotation speed of the wafer can be automatically increased, avoiding the problem of needing to use different equipment due to different requirements for cleaning and rinsing treatments, thereby simplifying the chip production process.

The invention discloses a pulse flow reverse osmosis membrane anti-pollution method and system based on water quality parameter feedback, and belongs to the technical field of water treatment. According to the method, scaling tendency indexes of calcium sulfate and silicon dioxide are dynamically calculated by monitoring calcium ions, sulfate ions, silicon dioxide, TDS (total dissolved solids), pH (potential of hydrogen) values and temperatures of reverse osmosis inlet water on line, and trapezoidal wave pulse flow control instructions are adaptively generated according to SI values. The pulse generating device superposes trapezoidal wave pulses with the peak flow being 1.2-2.0 times of the baseline flow and the frequency being 0.001-0.02 Hz in main inlet water to disturb a membrane surface boundary layer, inhibit concentration polarization and delay inorganic scaling. The system comprises a water quality sensor, a PLC (Programmable Logic Controller), a high-pressure pump, a pulse pump, an energy accumulator, a control valve group and a reverse osmosis membrane stack. Chemical dosing is not needed, intelligent scale prevention is achieved through physical disturbance, the cleaning period is remarkably prolonged, and the system stability and the membrane service life are improved.

The optical preamplifier is optically coupled to the power amplifier. The optical preamplifier comprises a preamplifier stage signal input end, a preamplifier stage pump input end and a preamplifier stage signal output end. The optical preamplifier is pulsed (rather than being pumped by a continuous wave (CW) pump). The power amplifier includes a power amplifier signal input optically coupled to a pre-amplification stage signal output.

The present invention discloses a method for generating isolated attosecond pulses, belonging to the field of ultrashort pulse laser technology. The method is to introduce a long-pulse pump light on the basis of ionization gating, continuously inject the energy of the pump light into the ionization pulse, and generate attosecond pulses through the transfer of pump energy to attosecond pulse energy. The present invention first proposes a method for generating attosecond pulses from picosecond pulses. Since the energy of picosecond pulses can reach thousands of joules, at a conversion efficiency of about 0.1%, the corresponding energy of the generated attosecond pulses can reach several joules, which is 5-6 orders of magnitude higher than the existing microjoules.

This invention discloses a method for weakening coal seams through hydraulic fracturing. A directional drilling rig is used to drill a hole perpendicular to the working face in the haulage or auxiliary haulage roadway. A packer and fracturing rod are then placed into the hole. After the packer and fracturing rod are lowered to the bottom of the hole, the fracturing rod is connected to a pulse pump. Once the pipeline is connected, the pulse pump is started. The pump is stopped after the designed fracturing time is reached, and the fracturing rod is then withdrawn 2-5 meters outwards for another fracturing operation. This process continues until fracturing reaches near the borehole opening, completing the fracturing of one borehole. This fracturing cycle is repeated. During the fracturing process, monitoring equipment is used to monitor the fracturing flow rate and fracturing pressure in real time. This short-distance, high-frequency fracturing method allows for more than 60 fracturing operations per borehole. Therefore, the accompanying packer is a high-pressure resistant and fatigue-resistant packer that can be reused multiple times.

The utility model discloses a pulse type carbon black bag type dust collector, include: filter conical box, filter structure and dust extraction structure, filter structure and dust extraction structure install in the inside of filter conical box, dust extraction structure contains a pair of filter board, a plurality of expansion torus air bag, a plurality of dentiform shunt, dentiform siphon, a plurality of J type siphon, air pump, a plurality of dentiform exhaust pipe, a plurality of lift plug-in pipe, well -like elevating support, two pairs of adsorption electromagnet, two pairs of adsorption magnet, two pairs of electromagnetic telescopic lock, three -way valve and pulse pump, the utility model relates to carbon black production technical field, first, adopt magnetic drive elevating system, through the repulsion of electromagnet and permanent magnet, realize the millimeter level accurate lifting of well -like support, ensure the flexible docking of lift plug-in pipe and filter bag, avoid mechanical impact damage, second, the original compound dust cleaning mechanism combines the double action of air bag radial expansion (generates 5kPa uniform pressure) and pulse air flow back flushing (0.7MPa instantaneous impact), and dust cleaning efficiency improves by more than 40%.

The embodiment of the invention provides a fractured rock mass pulse two-phase flow stress sensitivity testing method and platform, and the method comprises the steps: S1, making a fractured rock mass sample, and putting the sample into a testing platform; s2, according to the pressure upper limit, the pressure lower limit and the pulse frequency of the pulse two-phase flow, pulse pump pressure in a sine wave form is obtained through calculation; s3, measuring the relative permeability of the pulse two-phase flow in the sample when the pulse two-phase flow is injected into the sample in a sine wave form pulse pump pressure under the set confining pressure; s4, adjusting the ratio of the gas-phase fluid to the liquid-phase fluid in the pulse two-phase flow for multiple times, and repeating S3 to obtain the relative permeability of a group of pulse two-phase flow; and S5, changing the set confining pressure for multiple times, repeating the steps S3 to S4 to obtain the relative permeability of the multiple groups of pulse two-phase flows, and analyzing the stress sensitivity of the pulse two-phase flows in the fractured rock mass. According to the embodiment of the invention, the stress sensitivity of the pulse two-phase flow in the fractured rock mass is analyzed, and powerful technical support is provided for efficient exploitation of oil and gas resources.

The invention provides a pulse pump suitable for tunnel / roadway grouting and a grouting system, and relates to the technical field of cement slurry pumping devices, the pulse pump comprises a box body, the interior of the box body is divided into a crankshaft power chamber and a slurry pumping chamber through a partition plate, and a feeding and discharging assembly block is fixedly installed in the slurry pumping chamber. The variable-diameter pumping cylinder body is adopted, the diameter of the cylinder body can be adjusted according to the resistance and pressure of cement paste, when the pumping resistance is large, the diameter of the pumping cylinder body can be reduced so as to reduce the starting pressure, and when a stable pumping stage is started, the diameter of the cylinder body is increased, so that the pumping amount is guaranteed; by means of the design, adaptive adjustment can be conducted according to the density of cement grout, it is guaranteed that the pumping process is smoothly conducted, meanwhile, the burden of a pumping power mechanism is reduced, and the pumping performance of the cement grout can be remarkably improved.

The invention belongs to the field of grain processing equipment, and particularly relates to a grain dust removal device which comprises a box body, an air inlet is formed in one side of the box body, a dust hopper is arranged on the lower side of the box body, an air purification chamber is arranged at the top in the box body, and an air outlet is formed in the top of the air purification chamber, and the grain dust removal device is characterized in that a plurality of dust filter bags are arranged on the lower side of the air purification chamber in the box body; the inner space of the dust filtering bag is communicated with the air purifying chamber at the top; supporting frames for fixing the dust filtering bag are arranged on the upper side and the lower side of the dust filtering bag; a plurality of supporting columns are evenly distributed on the supporting frame in the circumferential direction and attached to the inner wall of the dust filtering bag. The initial unpressed diameter of the dust filtering bag is greater than the diameter of the circumcircle of the supporting frame; a dust baffle is arranged at the position, opposite to the air inlet, of the box body; the box body is provided with at least one stage of guide plate between the air inlet and the dust baffle; a pulse pump is arranged on one side of the box body; the pulse pump is provided with a plurality of blowing pipes which extend into the air purifying chamber and is provided with a plurality of blowing openings which are opposite to the dust filtering bags.