228 results about "Liquid column" patented technology

The invention relates to the technical field of oil-water detection equipment, and discloses an oil-water detector and method based on a liquid mass resonance measurement principle. The oil-water detector based on the liquid mass resonance measurement principle comprises a parameter sensing unit which is used for contacting an oil-water mixed medium in a pipeline and comprises a current carrying body with a measurement cavity, a measurement probe arranged in the measurement cavity and a resonance body arranged in the measurement probe; and the data processing unit is in signal connection with the parameter sensing unit and comprises a signal transmitting module which is used for transmitting an audio frequency sweep frequency signal to the resonant body to excite liquid column resonance and transmitting electromagnetic short waves with a preset frequency to an oil-water mixed medium at the same time. According to the invention, direct measurement of the density and the dielectric constant is fused, the phase state is identified by using an intelligent algorithm, and the model is switched, so that the problem of failure of a single principle technology in a specific phase state is solved, and high-precision measurement in a water-in-oil state or an oil-in-water state in a full range from pure water to pure oil is realized.

The invention discloses a self-setting packer and belongs to the technical field of petrochemical engineering. The device comprises an upper connector and a lower connector, a lifting sleeve is installed in an inner hole of the upper connector, and the lower end of the upper connector is connected with an upper pressing ring through a deblocking shear pin; a rubber cylinder shaft is fixedly mounted on the outer side of the lifting sleeve, and a balance piston, a sealing sleeve, an upper pressing ring, a rubber cylinder and a sealing push cylinder are sequentially arranged on the rubber cylinder shaft in a sleeving manner from inside to outside; the lower end of the rubber sleeve shaft is connected with a central pipe through a locking sleeve; the lower end of the central pipe is in threaded connection with a lower joint; the sealing push cylinder sleeves the outer side of the central pipe, and the inner wall of the upper part of the sealing push cylinder is in sealing fit with the outer wall of the locking sleeve to form a primary vacuum piston cavity; the lower end of the sealing push cylinder is in threaded connection with a lower-stage piston, and a starting piston is installed on the outer side of the lower-stage piston in a limited mode through a shoulder. The packer can directly seat a well mouth after descending into a well in place along with a tubular column, pressing is not needed, the tubular column does not need to be lifted and put down, and automatic setting of the packer is achieved through timing liquid inlet and liquid column static pressure.

The invention discloses a water quality measuring device and method, and belongs to the technical field of analytical testing, the water quality measuring device comprises a light source, a first signal receiver and a buffer pool, the buffer pool is provided with a liquid inlet and a liquid outlet, the liquid inlet of the buffer pool is used for continuously inputting a to-be-tested sample, and the liquid outlet is used for continuously outputting the to-be-tested sample; the buffer pool is arranged in the buffer pool, water flow at a liquid outlet of the buffer pool forms a stable liquid column, the light source is arranged on the first side of the liquid column, the first signal receiver is arranged on the second side of the liquid column, light emitted by the light source penetrates through the liquid column and is received by the first signal receiver, and the first signal receiver is used for measuring the light intensity of the received light. Parameters to be tested in a water sample are tested in a non-contact mode, light emitted by the light source penetrates through the liquid column, and the change of a signal is detected through the first signal receiver and can be converted into the content / value of the parameters to be tested in the water sample, so that long-term reliable, accurate and stable water quality testing in various scenes can be met; the key technical problem urgently needing to be broken through in the current water quality monitoring field is solved.

The utility model discloses a Stirling heat engine teaching aid based on an auxiliary magnetic suspension system and a U-shaped liquid column, which comprises a support table, a glass U-shaped tube and a quartz tube, a high-frequency induction heater is arranged on the upper side of the support table, a heating induction coil of the high-frequency induction heater is sleeved on the quartz tube, the quartz tube is horizontally arranged, and the glass U-shaped tube is arranged on the quartz tube. A first sealing plug and a second sealing plug are respectively plugged at the two ends of the quartz tube, heat preservation steel wool is arranged at one section, close to the first sealing plug, of the interior of the quartz tube, and a heating iron ring is arranged in the center of the interior of the quartz tube and is positioned in a heating induction coil of the high-frequency induction heater. According to the utility model, through the design of the auxiliary magnetic suspension system and the U-shaped liquid column, the friction between the piston and the pipe wall is greatly reduced, the energy loss in the mechanical energy conversion process is effectively reduced, and the working principle of the Stirling heat engine and the application of the second law of thermodynamics can be intuitively displayed.

The invention relates to the technical field of new energy battery production, and discloses a new energy battery manufacturing-oriented process state monitoring system, which comprises a disturbance excitation module used for applying a controllable disturbance signal to a liquid column in a liquid injection process; the response acquisition module is used for acquiring a response signal of the liquid column under the disturbance effect; the state recognition module is used for recognizing the structural state of the liquid column based on the response signal and judging whether a liquid column discontinuous area or a bubble entrainment behavior exists or not; the control instruction generation module is used for generating a deviation correction control instruction when the liquid column state is judged to be abnormal; and the liquid injection execution module is used for receiving the deviation correction control instruction and executing liquid injection pause, exhaust or liquid injection rate adjustment operation. The system has the capability of active excitation and response acquisition of a liquid column state, the capability of state identification based on response behaviors, and the capability of process control of sending a correction instruction to a liquid injection execution module, and has the advantage of a process monitoring closed loop from abnormal identification to action response.

The utility model discloses a kind of liquid nitrogen storage tank pressure relief protection devices based on liquid column differential pressure control, belong to pressure vessel testing equipment field. Including liquid tank, air inlet and exhaust pipe and connecting pipe. Middle in liquid tank is provided with baffle, the baffle will the internal space of the liquid tank be divided into gas chamber and liquid chamber, liquid level control hole is opened on the side wall of the baffle far from the liquid chamber, the liquid level control hole of uppermost layer is located below the top edge of the baffle;The air inlet and exhaust pipe is vertically inserted in the top of the liquid tank, and the bottom end of the air inlet and exhaust pipe extends to below in the liquid chamber, the bottom end face of the air inlet and exhaust pipe is located below the liquid level control hole;The connecting pipe is vertically inserted in the bottom of the liquid tank, and the top end of the connecting pipe extends to in the gas chamber. The utility model is discharged by liquid column static pressure difference The pressure relief device of two-way protection of overpressure / negative pressure, especially applicable to the pressure test working condition of liquid nitrogen storage tank.

The engine system with communicating fluid vessels has first, second, and third fluid containers each containing a liquid fluid. At least one interconnecting lever conduit contains the liquid fluid and is rotatably coupled to the first, second, and third fluid containers. The interconnecting lever conduit is pivotal about an axis and defines a fluid passageway by which the first, second, and third fluid containers are in liquid fluid communication. At least one buoyant member and at least one holding tank are positioned in each of the first and third fluid containers. A tether is physically linking together the holding tank of each of the first and third fluid containers. Supplying the gas to the interior of the holding tank displaces some of the liquid fluid from the interior of the holding tank to increase a column height of the liquid fluid in the first, second, and third fluid containers.

The present application relates to a kind of three-dimensional pendulum tuning liquid inductance device, the inductance device includes tuning liquid column damper and tuning mass inductance container, tuning liquid column damper includes swing arm, ball hinge end head, swing arm connector, annular water tank and tuning liquid, swing arm one end is connected with ball hinge end head, the other end is connected with annular water tank by swing arm connector, tuning liquid is filled in annular water tank;Tuning mass inductance container is installed in the lower portion of tuning liquid column damper, ball hinge end head is connected with the structure to be damped, annular water tank swings and drives tuning mass inductance container to carry out energy consumption, the inductance device tuning period is adjustable.Compared with prior art, the present application has can control the vibration in each direction of the structure to be controlled, wide range of use;The parameters of each component can be flexibly adjusted to achieve the best damping effect, while tuning mass inductance container can realize the energy absorption of input structure with smaller space and achieve the two goals of energy dissipation and reduction of upper tuning liquid mass.

The invention relates to the technical field of quenching equipment, in particular to automatic integral quenching equipment for a pivotal bearing, which comprises a chassis, and further comprises a control cabinet and an intermediate frequency cabinet both fixedly mounted at the top of the chassis; the quenching box is mounted at the top of the chassis; the circulating water cooling system is mounted at the top of the chassis and is used for carrying out cooling circulation on the equipment; the quenching liquid circulating system is used for recovering the quenching liquid and performing cooling circulation reutilization; the rotating table is mounted at the top of the chassis through a rail, a quenching assembly is mounted at the top of the rotating table, and the quenching assembly is used for being matched with a quenching liquid circulating system to guide quenching liquid to pass through a workpiece on the rotating table in a flowing mode for quenching; according to the device, the quenching liquid is changed from spraying to immersing the workpiece firstly and then flowing and discharging, so that the whole surface of the workpiece is instantly and completely coated by a uniform and static liquid layer, and non-uniform cooling and local steam film retention caused by non-uniform impact angle and flow of a liquid column during spraying are eliminated.

The application discloses a pulsation uniform heating plate type plate-pen notebook computer radiator, which comprises a bottom plate, a pulsation channel is arranged on the bottom plate, a cover plate is arranged on the pulsation channel, the pulsation channel is a closed air channel structure, refrigerant is arranged in the pulsation channel, and the pulsation channel is a negative pressure structure. When the device is implemented, the pulsation channel is filled with refrigerant. Because the pulsation channel is small enough, the air bubble column and the liquid column are arranged in an interval and in a random distribution state. In a high-temperature area, the refrigerant absorbs heat to generate air bubbles, which expand and increase pressure rapidly, push the refrigerant after heat absorption to flow to a low-temperature area, and the air bubbles in the low-temperature area are cooled, shrink and break, and the pressure decreases. Because there is a pressure difference between the two ends and a pressure imbalance between adjacent pulsation channels, the refrigerant oscillates between the high-temperature area and the low-temperature area, so that heat transfer is realized. In the whole process, external mechanical work and electric work are not consumed, and self-oscillation under thermal driving is realized.

The invention provides a rock triaxial anti-drilling strength optimization calculation method and device based on drilling fluid parameters, and relates to the technical field of crossing of petroleum drilling engineering and rock mechanics. The method comprises the steps that logging information and drilling parameters of a target stratum are obtained; determining pore pressure, maximum horizontal principal stress and minimum horizontal principal stress according to the logging information; based on the drilling parameters, the drilling fluid circulating liquid column pressure is determined, and the drilling fluid circulating liquid column pressure serves as axial stress; determining a first underground confining pressure and a second underground confining pressure according to the pore pressure, the maximum horizontal principal stress and the minimum horizontal principal stress; and selecting a compressive strength criterion according to different rock characteristics, and determining the triaxial compressive strength of the rock in combination with the axial stress, the first underground confining pressure and the second underground confining pressure.

A discrimination system is provided. A discrimination system forms a liquid column and interrogates an object within the liquid column with an excitation source. The optical arrangement collects output electromagnetic radiation emanating from an excited object disposed within the liquid column and directs the output electromagnetic radiation to the detector. The analyzer reduces the positional correlation of the detected intensity by normalizing the value based on the position of each object.

The application relates to an efficient flowback device and method for testing a horizontal well of super-deep water and super-shallow gas, which comprises a wellhead device, a first data monitoring device, a replacement slurry water injection device, a coiled tubing, a coiled tubing gas injection device, a data processing and response device and a flowback fluid treatment device; the coiled tubing is connected with the replacement slurry water injection device and the coiled tubing gas injection device through the wellhead device; the first data monitoring device is arranged on the lower side of the wellhead device, and the flowback fluid treatment device is connected with the side of the wellhead device; the data processing and response device is connected with the replacement slurry water injection device, the coiled tubing gas injection device, the flowback fluid treatment device and the first data monitoring device through transmission optical fibers. The application adopts a collaborative scheme of pre-reducing liquid column pressure by using replacement slurry water and injecting gas through the coiled tubing to realize efficient removal of liquid accumulation in the whole horizontal section under the premise of protecting the reservoir and avoiding well leakage, thereby providing technical support for testing and development connection of super-deep water and super-shallow gas reservoirs.

The invention relates to the technical field of pharmaceutical analysis equipment, and discloses pharmaceutical active component quantitative analysis equipment which comprises a chromatographic column, the chromatographic column comprises a hollow column body, a filter screen is fixedly arranged at the lower end in the column body, a stationary phase is arranged above the filter screen, a piston is arranged above the stationary phase, and the piston is connected with a driving part; the piston comprises a first shell facing the stationary phase, a second shell is coaxially arranged on the side, away from the stationary phase, of the first shell in a sliding mode, an elastic supporting piece is arranged between the first shell and the second shell, a plurality of connecting holes are coaxially formed in the bottom of the first shell and the bottom of the second shell, liquid discharging columns are arranged in the connecting holes, and liquid inlets are formed in the tops of the liquid discharging columns. A liquid outlet is formed in the side wall of the bottom of each liquid discharging column, the multiple liquid discharging columns are connected with a driving mechanism, and the second shell is connected with a liquid inlet pipe. According to the invention, the state of a stationary phase bed layer can be actively adjusted, and uniform introduction and dispersion of liquid medicine are realized, so that the chromatographic separation efficiency and the quantitative analysis accuracy are improved.

The invention provides a 3D printing device and a 3D printing method of a liquid material. The 3D printing device comprises a rod body with a tip end. The container is provided with a bottom surface, a hole allowing the tip of the rod body to reciprocate is formed in the bottom surface, and the container is further provided with an opening and closing part capable of opening or closing the hole; the container is used for containing a liquid material for 3D printing, and after the hole is in an open state and the tip end of the rod body moves out of the container from the interior of the container through the hole, the contained liquid material penetrates through the hole under the action of gravity and converges to the tip end from the outer wall of the rod body to form a liquid column; a substrate for receiving a liquid column. According to the 3D printing device, the rod body serves as a nozzle, the outer wall of the rod body serves as an outer flow channel, liquid materials flow in a thin film mode in the printing process, high-precision extrusion is achieved, and the problems that materials are difficult to print and blocked are solved.

The invention discloses an annular air column volume optimization method and device for preventing an oil and gas well annular temperature and pressure effect. The method comprises the following steps: determining annulus thermal resistance of an annulus section according to heat conductivity coefficients of an annulus air column and an annulus liquid column, and further determining radial heat transfer thermal resistance of the annulus section; according to the dimensionless formation temperature, the friction coefficient between an oil pipe and fluid, the radial heat transfer resistance of an annulus section and the formation temperature, the annulus liquid column temperature change and the annulus liquid column average temperature are determined respectively, and a first equation representing the relation among the annulus liquid column temperature change, the annulus pressure increment and the annulus liquid column volume variation is established; the second equation is used for representing the relationship among the average temperature of the annular air column, the annular pressure increment and the volume of the annular air column; an annular pressure increment is obtained according to the current annular air column length solving equation; and the length of the annular air column is modified until the determined annular pressure increment meets the control value, and the optimal annular gas injection amount is obtained. The method provides data guidance for preventing the annulus pressure induced by the temperature-pressure effect.

The invention relates to the technical field of reactor residual heat removal, in particular to a residual heat removal pipeline condensation water hammer suppression system and method based on air filling, and the system comprises a loop subsystem, a natural circulation loop, an air injection subsystem and an ocean heat trap; the loop subsystem comprises a reactor core, a pressure container and a coolant circulating pipeline; the natural circulation loop comprises an intermediate heat exchanger, a seawater circulation pipeline and a high-temperature steam pipeline, the intermediate heat exchanger is connected with a loop subsystem, the seawater circulation pipeline is connected with the intermediate heat exchanger and the ocean heat trap, and the high-temperature steam pipeline is connected with an outlet of the intermediate heat exchanger and the ocean heat trap; the gas-phase system formed by mixing air and steam is used for avoiding generation of local negative pressure after steam condensation, condensation water hammers caused by liquid column collision are inhibited from the source, the risks of instantaneous high pressure, pipeline oscillation and the like can be effectively reduced, and the device adapts to the special structure and low-pressure operation attribute of the ocean floating nuclear energy platform.

This invention discloses a residual liquid removal structure and method for an eye dropper, comprising: a bottle body, a dropper shell, a dropper column, and an annular sealing gasket. The dropper shell is connected to the bottle body and has a flow channel. An outlet is located at the top of the flow channel, and an annular sealing gasket is located at the connection between the outlet and the flow channel. The dropper column is located within the flow channel of the dropper shell, and includes a T-shaped section and a conical section. The conical section passes through the annular sealing gasket and the outlet and extends outward from the dropper shell. The inner ring of the annular sealing gasket is sealed to the outer wall of the conical section. Several guide grooves are evenly distributed on the dropper column. The advantages of this invention are: after dispensing, releasing the bottle body pushes the liquid film adhering to the conical section of the dropper column and the liquid suspended at the end of the conical section away from the conical section, allowing it to be dispensed into the user's eye without waste. Furthermore, it keeps the conical section exposed to air dry, thus preventing bacterial growth.

The utility model relates to a viscometer. The viscometer comprises a cross arm, one end of the oblique arm is connected with the cross arm, the connecting position is a turning position, a first measuring piece is arranged on the turning position and used for recording the first height of the sample liquid column, and an injection port is formed in the end, away from the turning position, of the cross arm; one end of the plumbing arm is connected with the other end of the inclined arm, a second measuring piece and a third measuring piece are arranged on the plumbing arm, and the second measuring piece and the third measuring piece are used for measuring the flowing time of the sample; communicated sample flowing paths are arranged in the cross arm, the inclined arm and the plumbing arm, a vertical small pipe is arranged in the tail end of the cross arm, and the viscometer provided by the utility model can realize accurate control of the height of a measured liquid column and ensure the consistency of height measurement of the liquid column and the accuracy of a viscosity measurement result.

An X-ray source is provided comprising a target generator configured to generate a liquid jet having an elongated cross with a major axis and a minor axis; an electron source configured to generate an electron beam arranged to interact with the liquid jet in an interaction region to generate X-ray radiation; and an X-ray transparent window arranged to transmit X-ray radiation generated in the interaction region, wherein the X-ray transparent window is located for extraction of X-ray radiation at an angle α relative to the major axis; wherein the target generator is configured to generate the liquid jet such that said jet has a thickness at the interaction region, along a propagation direction of the electron beam, that is less than an electron penetration depth of the electron beam in the liquid jet. A corresponding method for generating X-ray radiation is also provided.

The utility model relates to an adjustable enamel reaction kettle, which belongs to the technical field of reaction kettles and comprises a kettle body, a kettle cover, a stirring shaft, a stirrer, a heating jacket, a clip and a guide hanging ring, a guide support ring is arranged in the guide hanging ring, a support ring plate is fixed at the bottom of the kettle body, and a liquid outlet is arranged between the support ring plate and the inner side of the bottom of the heating jacket. A semicircular liquid receiving groove is formed in the bottom of the liquid discharging opening, a liquid discharging pipe is fixed to the bottom of the liquid receiving groove, a liquid discharging column is arranged in the liquid discharging pipe, two sealing pistons matched with an inner hole of the liquid discharging pipe are fixed to the upper portion of the liquid discharging column, the lower end of the liquid discharging column is in threaded connection with the bottom of the liquid discharging pipe, and a liquid discharging hole is formed in the middle of the side wall of the liquid discharging pipe. According to the utility model, installation guiding and supporting positioning can be provided for the clip, so that installation deviation of the clip is avoided, and the sealing fitting degree of the kettle body and the kettle cover is guaranteed; and the sealing performance of the liquid drainage pipe is greatly improved through the design of the double-sealing piston, and liquid cannot flow to threads to cause corrosion of the threads.

A gas-blocking sterile drip bottle capable of externally treating residual liquid, comprising: a drip head (1), a bottle body (2), and a bottle cap (3). The drip head (1) comprises a drip nozzle (11), a valve body (12), a diaphragm valve (13), and a sterilization filter element (14). The valve body (12) is provided with a backflow groove (1231), an air return hole (1233), an air collection groove (124), a liquid inlet hole (125), and several isolation grooves (121). A hollow spring column (1242) is arranged in the air collection groove (124). The sterilization filter element (14) is arranged on the valve body (12) in a sealed manner. The diaphragm valve (13) is arranged on and blocks the air collection groove (124). A return spring (4) is arranged between the diaphragm valve (13) and the hollow spring column (1242). A conical valve core (134) is arranged on the diaphragm valve (13). The drip nozzle (11) is clamped on the valve body (12) in a sealed manner. The drip nozzle (11) abuts against the diaphragm valve (13). A drip column (113) is arranged on the drip nozzle (11). A conical drip hole (114) is arranged in the drip column (113). A dispenser (15) is sleeved on the drip nozzle (11). The dispenser (15) is attached to the drip nozzle (11) in a sealed manner. Several drainage grooves (153) are uniformly distributed on the circumference of the dispenser (15). The dispenser (15) is attached to the valve body (12) in a sealed manner.

The invention discloses a positive cycle non-linear displacement control method for strong drilling of a sulfur-containing and gas-containing stratum, which belongs to the technical field of displacement control methods and comprises the following steps of: measuring the static liquid level height of a drilling fluid column before a drilling pump is started under the condition of leakage return of a drilled well; measuring the working fluid level height after well drilling pump starting is stable; calculating the liquid column pressure before pump starting according to the static liquid level height of the drilling liquid column; calculating formation pressure after pump starting is stabilized according to the working fluid level height; comparing whether the liquid column pressure before pump starting and the formation pressure after pump starting stabilization are balanced or not; if not, the annulus dynamic liquid level height is adjusted, the annulus liquid column pressure is kept equal to or larger than the formation pressure all the time, and the annulus liquid column pressure is made to stably press the leakage layer; and after the leakage layer is stably pressed, clear water with different discharge capacities is adopted to bring drilled rock debris into the leakage layer under different annular gaps of the drill collar section and the drill rod section. In the process of clear water forced drilling, the height of the annular liquid level above a leakage layer is controlled through positive circulation, so that the annular liquid column pressure is larger than the formation pressure, and an air layer is stably pressed to prevent overflow.

The application discloses a cleaning mechanism, which comprises a cleaning cover, a first cleaning nozzle and a displacement driving mechanism; a liquid outlet of the first cleaning nozzle is arranged inside the cleaning cover; the displacement driving mechanism is connected with the cleaning cover; the cleaning cover has a storage position and a working position; the cleaning cover is driven by the displacement driving mechanism to switch positions between the storage position and the working position; when the cleaning cover is in the working position, the opening of the cleaning cover is arranged around the anus of a user on a toilet bowl to prevent the cleaning liquid from leaking out of the cleaning cover to the outside of the cleaning cover, and the first cleaning nozzle is used to clean the anus area by close washing. The cleaning mechanism of the application can prevent the cleaning liquid from leaking out of the cleaning cover, limit the wetting range in the range covered by the cleaning cover, adopt close washing by the first cleaning nozzle, make the cleaning more thorough, and reduce the discomfort of the liquid column of the cleaning liquid when washing the anus area. The application further discloses an intelligent toilet cover and a toilet bowl with the cleaning mechanism.

The invention discloses an infusion device for arterial infusion. Intelligent and closed-loop accurate control of the arterial infusion process can be achieved on the premise that safety is guaranteed. The device comprises a pressurization bag, a pressurization mechanism, a first pressure sensor, a liquid column height detection unit, a second pressure sensor, a flow sensor, a control unit, a pressure relief mechanism, an alarm device, a data fusion engine and the like. In-bag pressure, liquid column height, near-end pressure and flow information are collected in real time through multiple sensors, and a control unit calculates and dynamically adjusts driving force, so that infusion pressure is always maintained within a safe and effective range. The system has the functions of automatically identifying and protecting abnormal conditions such as blockage, empty bags, blood return and the like, and can realize linkage of data transmission and clinical monitoring through wireless communication. The system is clear in structure, comprehensive in function, capable of remarkably improving the safety and reliability of arterial infusion and suitable for various clinical scenes.

The present invention provides a substrate processing apparatus, and a substrate processing method. The substrate processing apparatus comprises: a carrying platform, used for carrying the substrate and rotating with the substrate; a spray head, comprising a liquid outlet, and a gas outlet partially surrounding the liquid outlet, an orthographic projection of the gas outlet onto the carrying platform being located between the center of the carrying platform and an orthographic projection of the liquid outlet onto the carrying platform, the liquid outlet being used for spraying a chemical liquid to form a liquid column, so as to clean an edge of the substrate, and the gas outlet being used for spraying a gas to form a gas curtain. When the substrate rotates, the spray head is configured to move the liquid column and the air curtain around an edge washing line of the substrate, the air curtain partially surrounding the liquid column. The air curtain provided by the present invention compensates for the problem of centrifugal force under low-speed rotation not being enough to throw out a chemical liquid, making it impossible to complete edge washing. In addition, the air curtain may further block a splashed chemical liquid, so as to avoid a defect of chemical liquid splashed in a central area of the substrate.

The present application relates to the field of micro-droplet jet and inkjet technology, and particularly relates to an acoustic driving micro-droplet jetting method and device, which comprises: stably delivering a liquid to be jetted to a nozzle micro-hole assembly; generating an ultrasonic signal, which drives an ultrasonic transducer after power amplification; driving the resonant acoustic cavity nozzle through the ultrasonic transducer to form a stable sub-wavelength scale standing wave acoustic field in the cavity; using the acoustic radiation force to act on the liquid column at the end of the nozzle to realize the non-contact separation and directional jetting of the droplet; and moving the nozzle on the substrate through a multi-axis motion platform to realize the deposition of the droplet according to a predetermined track. The method and device avoid the nozzle blockage and other problems caused by the high viscosity or high solid content of the liquid in the traditional piezoelectric or electrohydrodynamic driving mode; can significantly improve the control accuracy of the droplet size and jetting speed, have excellent fluid adaptability and jetting stability, and are particularly suitable for the precise deposition and patterning jetting of complex fluids such as photoresist, metal paste and functional nanomaterials.

The invention relates to gas separation, in particular to the technical field of flue gas treatment, and discloses desulfurization and denitrification reaction equipment for a combustion boiler, which comprises a desulfurization tower, a channel part is arranged on the desulfurization tower, a fog field part is mounted in the desulfurization tower, corrugated filler is arranged in the desulfurization tower, a turbulence part is arranged in the desulfurization tower, and a gas inlet is formed in the turbulence part. An electromagnetic bin wall vibrator is arranged on the desulfurization tower, the channel part comprises a smoke inlet pipe, the smoke inlet pipe is installed on one side of the desulfurization tower in a communicating mode, a smoke exhaust pipe is installed on the other side of the desulfurization tower in a communicating mode, and multi-dimensional cooperation of pulse injection, liquid column impact, rotational flow disturbance, mechanical stirring and external vibration is adopted; the gas-liquid contact efficiency, the slurry mixing uniformity and the anti-scaling effect are improved to a new level, finally, efficient removal of sulfur dioxide is realized, and meanwhile, the equipment maintenance frequency is reduced.

This invention relates to a dual-channel hydraulic lift pump for solid fluidized bed exploitation of marine natural gas hydrates, comprising a pump section, a turbine section, a bridge-type channel assembly, an upper connector, a housing, and a lower connector. The pump section mainly consists of a pump impeller, a guide wheel, a pump shaft, and a pump housing. The turbine section mainly consists of a stator, a rotor, a turbine shaft, and a turbine housing. The bridge-type channel assembly mainly consists of a bridge-type channel connector, an intermediate connecting shaft, and a sealing assembly. The pump section and turbine section are connected as a unit via the bridge-type channel assembly and held in place in the middle of the housing by a centralizing block. During operation, the turbine section converts hydraulic energy into mechanical energy, which is transmitted to the pump shaft via the intermediate connecting shaft. The pump shaft drives the pump impeller to continuously draw back the fluid from the wellbore, performs work on the back fluid, and then discharges it. This invention controls and reduces the pressure of the fluid column on the formation during operation, solves the problem of wellbore leakage in solid fluidized bed exploitation, and greatly improves exploitation efficiency.

The utility model discloses an auxiliary horizontal pump upper water measuring tank, which comprises an upper water measuring tank, the top of the upper water measuring tank is provided with a water injection pipeline and an exhaust one-way valve, one end of the water injection pipeline far away from the upper water measuring tank is integrally and fixedly provided with a second connecting flange, and the bottom of the upper water measuring tank is provided with a drainage pipeline and a slag removal pipeline. And an opening and closing valve is installed on the right side of the slag removal pipeline, a first connecting flange is integrally and fixedly installed at the end, away from the upper water measuring tank, of the drainage pipeline, and supporting legs are welded to the outer surface of the upper water measuring tank. According to the utility model, the upper water measuring tank and the drainage pipeline are arranged, the upper water measuring tank is filled with water, and the water enters the drainage pipeline under the action of gravity to be in contact with the water pump, so that a continuous liquid column can be provided for a pump inlet before the pump is started; the problem that the horizontal pump cannot be started up due to large height difference of an inlet pipeline and gas storage is effectively solved, and normal flow can be quickly and reliably established by the pump.