1275 results about "Liquid injection" patented technology

The invention discloses an intelligent pretreatment workstation for microbiological detection, and relates to the technical field of microbiological detection. The module comprises a culture dish turntable, a transmission part, a homogeneous slapping part, a vortex oscillation part, a material rack storage part, a culture medium feeding part and the like; the culture dish turntable module comprises an upper dish station, a liquid injection station, an inoculation / coating station, a lower dish station and the like, as well as a transplanting electric module and a shaking-up module; the liquid injection unit can be used for injecting three culture solutions; the culture dish conveying module is responsible for conveying culture dishes to corresponding stations and is connected with an external feeding and receiving unit; the material rack storage module is used for storing pipettor tips, test tubes and homogenizing bags; the homogeneous slapping and vortex oscillation module is used for sample dilution and homogenization; the clamping robot is responsible for conveying the homogeneous bag and the test tube to the corresponding module and pulling out the plug of the test tube; the pipetting robot is used for sucking a sample and filling the sample into the culture dish. The steps from sample to culture can be completed at high speed and high efficiency, and the steps can be adjusted according to actual detection conditions through modular combination.

The invention discloses a single-phase immersed liquid cooling temperature stratification evaluation and disturbance liquid injection balance control system, and relates to the technical field of liquid cooling circulation structures. The single-phase immersed liquid cooling temperature stratification evaluation and disturbance liquid injection balance control system comprises a backflow liquid multi-point liquid inlet dynamic monitoring module used for collecting liquid cooling branch state data; the immersion liquid temperature layering monitoring module is used for evaluating the non-uniform degree of heat distribution and adjusting a disturbance liquid injection strategy; the liquid flow distribution equilibrium evaluation module is used for analyzing the matching degree of liquid flow distribution and heat dissipation and optimizing a flow direction coverage strategy; the cooling path dynamic judgment and switching module is used for evaluating the cooling state and the thermal load change and regulating and controlling the circulation path; and the immersed liquid cooling cabinet local disturbance self-balancing regulation and control module is used for guiding local convection and adjusting the disturbance direction. The problem that heat dissipation efficiency of a chip is affected by local heat accumulation in the immersed liquid cooling cabinet due to serious cold and hot lamination after backflow of a cooling liquid branch is solved.

The invention relates to a directional wick vapor chamber and a preparation method and application thereof in the technical field of vapor chambers. The preparation method comprises the following steps: preparing a lower substrate and an upper substrate; a directional liquid absorption core structure is printed on one side of the lower base plate through the 3D printing technology, the directional liquid absorption core structure comprises a plurality of liquid absorption core units, and the liquid absorption core units are arranged in an equidistant or unequidistant array mode in the X-axis direction and the Y-axis direction; the side, provided with the directional wick structure, of the lower substrate and the periphery of the upper substrate share the same edge and are sealed and packaged, and a position for containing a liquid injection pipe is reserved and used for liquid injection and degassing; carrying out accurate liquid injection, primary degassing and secondary degassing on the sealed upper substrate and lower substrate; and sealing: cutting off the liquid injection pipe part, and finally packaging the liquid injection pipe part to form the complete directional wick vapor chamber with the directional transmission characteristic. According to the directional wick vapor chamber prepared through the preparation method, the heat flow distribution of the vapor chamber can be improved, and the heat transfer performance is improved.

The invention discloses a CO2-oil near-miscible phase pressure acquisition system and method based on convective mixing, and belongs to the field of CO2 oil displacement. The system comprises a high-temperature and high-pressure reaction kettle, a temperature and pressure control system, a gas injection module, a liquid injection module and a monitoring control module. According to the method, the oil phase and the carbon dioxide are induced to form a convective mixing effect by dynamically regulating and controlling the injection flow rate, and when no interface of the system reaches a mutual convective mass transfer state, the system pressure corresponding to a phase interface disappearance critical point is directly recorded as a near-miscible-phase pressure value. The near-miscible pressure value obtained by the method is high in accuracy, the single test time is shortened to 1 hour, the test period is remarkably shortened, near-miscible pressure parameters under different temperature conditions can be measured in a short time, the CO2-oil near-miscible pressure can be measured by simulating a high-temperature and high-pressure environment of a stratum, and the method is suitable for popularization and application. And high-timeliness key phase state data support is provided for unconventional oil and gas reservoir development.

The utility model discloses a device for preparing a double-droplet microsphere. The device comprises a fluid injection unit, a liquid injection unit and a control unit, the micro-fluidic chip comprises a cover glass, one side of the cover glass is provided with a dispensing needle a, the dispensing needle a is connected with an internal phase glass capillary tube, the internal phase glass capillary tube is partially nested in an intermediate phase glass capillary tube, the intermediate phase glass capillary tube is partially nested in an external phase glass capillary tube, and the external phase glass capillary tube is connected with the external phase glass capillary tube. A dispensing needle b is vertically arranged above one end, which is overlapped with the inner phase glass capillary, of the intermediate phase glass capillary, and a dispensing needle c is vertically arranged above one end, which is overlapped with the intermediate phase glass capillary, of the outer phase glass capillary; and a micro-droplet collection unit. According to the utility model, through the coaxially arranged glass capillary tube and the dispensing needle head communicated with the glass capillary tube, the double-droplet microsphere is prepared, meanwhile, the groove is formed in the dispensing needle head, so that the construction of a coaxial glass capillary tube micro-fluidic chip is facilitated, the preparation equipment is simple, and the operation is simple.

The invention relates to the technical field of liquid absorption cores of vapor chambers, in particular to a vapor chamber with a porous liquid absorption core of a secondary structure and a preparation method of the vapor chamber. The preparation method comprises the following steps that an upper cover plate and a lower cover plate are prepared; cutting the metal wire mesh to obtain a wire mesh structure, and fixing the wire mesh structure on the surface of one side of the lower cover plate; electroplating is carried out on the silk screen structure of the lower cover plate to deposit nano-copper; calcining and curing the secondary structure of the silk screen electroplated with the nano-copper; and packaging the upper cover plate and the calcined lower cover plate, and performing liquid injection, degassing, sealing welding and packaging treatment to obtain the vapor chamber. According to the vapor chamber, the liquid absorption core with a secondary structure is prepared on the silk screen of the lower cover plate through electro-deposition of nano copper, the nano copper structure on the silk screen serves as the liquid absorption core through calcination and solidification, the service life of the vapor chamber can be effectively prolonged, the secondary porous structure provides multi-stage hole distribution for the liquid absorption core, multiple liquid flowing channels are provided, and heat conduction is accelerated.

The invention discloses an application method and device of Tip pipetting in a high-altitude environment and a storage medium. The application method comprises the following steps: 1, determining liquid suction and injection compensation amounts; 2, the liquid suction and injection pressure compensation amount is determined; 3, liquid level detection operation; 4, liquid suction operation; and 5, liquid injection operation. According to the method, an influence equation of liquid filling when the altitude changes is obtained according to liquid characteristics and in combination with an influence rule during Tip pipetting, and liquid suction and injection parameters are automatically corrected according to the altitude in a software linkage mode. By means of the mode, the instrument achieves automatic correction when used in the high altitude area, manpower is saved, cost is reduced, and adverse effects caused by personnel differences are avoided. After compensation is conducted through the method, the liquid injection amount is obviously increased, the attenuation compensation effect is obvious, and the consistency and repeatability of the liquid injection amount are obviously improved.

Disclosed is a fracture plugging simulation experimental device and an experimental method thereof. The device comprises a simulated wellbore, a simulated formation, a simulated fracture, a plurality of pressure sensors and vales, a mixing barrel, a liquid injection port and a pressurization port, a liquid collection tank, a plugging fluid storage tank, a heating device, etc. The method comprises: loading the simulated formation with the simulated fracture in the simulated wellbore, closing the second valve and turning on the mixing device, injecting a lost circulation material into the mixing barrel, closing the liquid injection port and turning on the heating device and pressurizing, stopping pressurizing and opening the second valve to establish a plugging process, turning on the plunger pump to continue pressurizing, and collecting a fluid pressure change of the simulated fracture in the plugging process; and calculating a pressure-bearing capacity of plugged fracture.

The invention discloses an experimental device and method for controlling migration and mineralization of ore-forming fluid in a wrinkle deformation process, and belongs to the technical field of ore deposit geology. The device comprises an ore liquid synthesis unit and a mechanical deformation simulation and mineralization analysis unit. The mechanical deformation simulation unit comprises a box body, an extrusion deformation system, a liquid injection system and a heating temperature control system, and can synchronously realize visual analysis of structure extrusion, fluid injection and mineralization precipitation at high temperature. The experimental method comprises the following steps: firstly, preparing a simulated metallogenic fluid containing FeS2 (pyrite); laying simulated surrounding rock and wrinkles in the box body, arranging a separation layer, and heating; extruding the sand layer and injecting fluid to simulate a mineralization process; and slicing, sampling and analyzing after model consolidation, and establishing a mineralization space distribution model. The device is simple in structure and convenient to operate, the whole process of fold extrusion, crack extension, fluid migration and mineral precipitation can be repeatedly represented, and an experimental basis is provided for hydrothermal deposit mineralization mechanism research and prospecting prediction.

The invention provides a liquid level detection method and device and automatic liquid injection equipment. The liquid level detection method is applied to a detection electrode circuit, a detection electrode comprises an inner-layer electrode and an outer-layer electrode, the inner-layer electrode is attached to the outer wall of a detected container, the outer-layer electrode and the inner-layer electrode are designed in a back-to-back attaching mode, and the liquid level detection method comprises the steps that ground capacitance values of the inner-layer electrode and the outer-layer electrode are obtained; calculating a difference value between the ground capacitance value of the inner-layer electrode and the ground capacitance value of the outer-layer electrode to obtain a capacitance difference value; and determining the liquid level of the measured container according to the variation trend of the capacitance difference value. According to the invention, the influence of time drift interference factors such as temperature drift and position change on the liquid level detection accuracy of the small container can be effectively reduced.

The embodiment of the invention provides a monitoring device and method for strain transmission from a crack to an optical fiber in a fracturing experiment, and belongs to the technical field of experimental physical simulation. In the device, a pressure medium injection module injects fracturing fluid into a sealed liquid injection shaft arranged on a rock sample until a fracturing crack generated by the rock sample meets the fracturing experiment purpose; the triaxial pressurization module applies confining pressure conforming to the stress condition of the experimental object to the rock sample; and the data processing module receives and processes the optical fiber strain signal acquired by the optical fiber so as to invert the transmission characteristics of the optical fiber strain in the fracturing experiment. Wherein the rock sample is provided with a plurality of penetrating holes; the optical fiber is wound around the rock sample along two or more of the plurality of through holes to acquire the optical fiber strain signal. The device can accurately position the three-dimensional expansion direction and the inclination angle of the crack in the fracturing process, so that researchers are helped to finely analyze a theoretical model of crack stress transfer.

The invention provides a device for measuring the thickness of a pipeline with a coating layer based on a digital ultrasonic technology, belongs to the technical field of pipeline thickness measurement, and solves the technical problems that an existing pipeline thickness measurement device is low in automation level, high in professional requirement, inaccurate in thickness measurement and the like. Comprising a machine box, mechanical arm mechanisms are rotationally arranged at the four corners of the machine box, clamping mechanisms are arranged at the ends of the mechanical arm mechanisms, and a main control board, a double-channel liquid injection pump, a sweeping mechanism, a smearing and cleaning mechanism, a drying mechanism, an ultrasonic thickness measuring mechanism and a storage battery are sequentially arranged on the lower end face in the machine box from back to front; the main control board is provided with a data processing module, a data storage module, a wireless communication module, a driving control module, a 3D modeling module, a positioning module, a battery management module and a data safety module. The device can stably walk on the pipeline, can automatically clean and measure the thickness, guarantees the measurement accuracy, carries out 3D modeling analysis on the pipeline, guides the next thickness measurement, and is high in automation level and low in professional requirement.

The invention relates to the technical field of industrial control, and discloses a soda water production line intelligent control method and system based on the Internet of Things, and the method comprises the steps: obtaining a backpressure valve reference pressure value according to the obtained real-time dynamic data through employing a pre-constructed carbonation digital twin model, and calculating the backpressure valve reference pressure value according to the backpressure valve reference pressure value; the carbonation digital twinning model is set to obtain a theoretical pressure value by adopting the Henry law according to the target gas content and the real-time data of the mixed liquid temperature, and obtain a predicted pressure value by adopting the pre-constructed pressure prediction model according to the target gas content, the real-time data of the raw material liquid injection flow and the real-time data of the carbon dioxide injection flow; further obtaining a reference pressure value of the back pressure valve; according to a first difference value between the target gas content and the real-time gas content of the mixed liquid, a first feedback correction algorithm is adopted to correct the reference pressure value of the back pressure valve, and a dynamic pressure control instruction of the back pressure valve is obtained; and controlling the back pressure valve to execute the back pressure valve dynamic pressure control instruction. According to the method, the taste stability of the soda water is effectively improved.

The invention discloses a long-time-sequence microorganism enrichment sampling cup which comprises a cup body and a cup cover meshed with the cup body in a sealed mode, a multi-stage filtering assembly is arranged in the cup body, a liquid injection opening, a multi-stage liquid injection pipeline, a multi-stage liquid outlet pipeline and a pressure relief pipeline are arranged on the cup body and the cup cover, and a plug is arranged at an end opening of the liquid outlet pipeline. The device has the beneficial effects that through a three-stage membrane filtering structure, impurities are effectively removed, and the effective concentration of a sampled product is improved; a plurality of liquid injection ports are arranged, after a sample is filtered, multi-stage injection of the stationary liquid is realized, the stationary liquid is ensured to be in full contact with the sample, the impurity content is reduced, and the microorganism purity and the sampling efficiency are improved; a plurality of pressure release valves are arranged, so that after the sample enrichment operation is completed, the pressure of the sampling cup is quickly released, the sampling process is simplified, and the scientific investigation experiment efficiency is improved; the device adopts a modular design, is simple and stable in structure, is convenient to operate and sample, and is particularly suitable for carrying and transporting scenes of underwater vehicles in scientific investigation experiments.

The invention relates to the technical field of contact lens automatic production, in particular to a contact lens filling and mold closing method and system.The contact lens filling and mold closing method comprises the following specific steps that S10, a feeding unit mold is carried to a jig assembly; s20, the turnover unit drives the jig assembly to enter a filling liquid injection area; s30, the mold opening and closing unit opens the mold, the liquid injection unit is filled with injection liquid, and the mold opening and closing unit performs mold closing on the mold; s40, the turnover unit drives the jig assembly to enter a discharging area, and the visual inspection assembly conducts quality visual inspection; s50, the discharging unit carries the mold to an empty tray, and material receiving and discharging are conducted; s60, the turnover unit drives the jig assembly to enter a feeding area for feeding, and operation is cycled in this way; the mold opening, filling and mold closing actions are integrated, the overall structure is compact, the function integration degree is high, liquid injection and filling are synchronously conducted in multiple filling and liquid injection areas in batches, the overall operation period of the mold is shortened, and the liquid injection and filling efficiency is improved; the automatic feeding and discharging unit is matched, so that the manual operation risk is reduced, and the overall production and processing quality and processing efficiency of contact lenses are improved.

The invention discloses an intelligent liquid supplementing and sampling system and method of a microorganism sampler and an unmanned flight system. A control module controls a sampling liquid pump to inject sampling liquid in a sampling liquid bottle into a wet-wall cyclone type sampler by a preset liquid injection amount and suspends the sampling liquid pump; the control module controls the fan to inject air into the wet-wall cyclone sampler for sampling, and adjusts the rotating speed of the fan in real time according to the flow detected by the sampling flow sensor, so that the sampling flow is maintained in a preset flow range; in the sampling process, the temperature sensor is used for detecting the temperature of the current air environment in real time per second, the humidity sensor is used for synchronously detecting the humidity of the current air environment in real time per second, and the control module is used for substituting the current temperature and the current humidity into a one-second sampling liquid evaporation capacity fitting function. And calculating the evaporation capacity of the sampling liquid in one second in the current temperature and humidity environment, controlling the working liquid supplementing time of the sampling liquid pump, and injecting the sampling liquid into the wet-wall cyclone type sampler to realize intelligent real-time liquid supplementing.

The embodiment of the invention provides an electrolyte temporary storage device and electrolyte injection equipment, and relates to the technical field of battery production equipment. The electrolyte temporary storage device comprises a protection cabinet, an electrolyte temporary storage assembly and a safety management mechanism, a containing cavity is formed in the protection cabinet, the electrolyte temporary storage assembly comprises an electrolyte pipeline, an electrolyte temporary storage tank and a bubble removing tank, the electrolyte temporary storage tank and the bubble removing tank are both located in the containing cavity, and the electrolyte pipeline is used for inputting electrolyte into the bubble removing tank; the bubble removing tank communicates with the electrolyte buffer tank, the safety management mechanism comprises a detection assembly and a control assembly electrically connected with the detection assembly, the detection assembly is used for detecting information in the containing cavity, and the control assembly controls the electrolyte pipeline to be disconnected from the electrolyte when the information is abnormal. According to the electrolyte buffer storage device provided by the embodiment of the invention, the electrolyte buffer storage tank and the bubble removing tank can be safely managed, and the occurrence of safety accidents such as combustion or explosion is reduced.

The invention discloses a multifunctional testing device and method for hydrate exploitation and CO2 multiphase sealing, the device comprises an experiment kettle for testing reaction, the experiment kettle is respectively connected with a confining pressure system, a vacuumizing system, a gas injection system, a CO2 injection system, a supercritical CO2 injection system, a liquid injection system and a permeation and diffusion characteristic testing system. The device is high in measurement precision, reliable in performance and high in practicability, can meet the requirements of methane hydrate layered mining simulation and carbon dioxide multi-phase storage multifunctional testing under the coupling effect of different working conditions of real simulation ocean working conditions, and can provide important technical support for commercial development of methane hydrate reservoirs and realization of efficient carbon dioxide storage.

The utility model provides an automatic metering and conveying device for preparing two-component sealant, which comprises a metering pump, a material conveying pipeline and a circulating cleaning pipeline, the input end and the output end of the metering pump are connected with the material conveying pipeline, and a pressure sensor is arranged on the material conveying pipeline; a first three-way electromagnetic valve and a second three-way electromagnetic valve are arranged at the two ends of the material conveying pipeline correspondingly, and one end of the first three-way electromagnetic valve and one end of the second three-way electromagnetic valve are connected with the tail ends of the two ends of the circulating cleaning pipeline correspondingly. A first three-way pipe and a second three-way pipe are arranged at the two ends of the circulating cleaning pipeline respectively, a water inlet pipe and a water outlet pipe are connected to the other end of the first three-way pipe and the other end of the second three-way pipe respectively, and a first electromagnetic switch valve and a second electromagnetic switch valve are arranged on the water inlet pipe and the water outlet pipe respectively. A one-way valve is arranged at a liquid outlet pipe at the bottom end of the cleaning agent storage tank, a liquid inlet pipe is arranged on the side wall of the upper end of the cleaning agent storage tank, a quantitative liquid injection device is arranged in the cleaning agent storage tank and quantitatively injects a cleaning agent into the circulating cleaning pipeline to be mixed with water, and cleaning liquid is formed under the pumping action of the metering pump and conducts circulating cleaning on the pipeline. And the labor burden is reduced, and the pipeline cleaning effect is improved.

The utility model provides an intelligent liquid injection device for an injector, which relates to the technical field of liquid injection equipment and comprises a first base, a test tube fixing seat, a second base and a liquid injection mechanism, the test tube fixing seat is arranged on the first base and provided with a fixing hole, and the liquid injection mechanism is arranged on the second base and provided with a fixing hole. The liquid injection mechanism is located above the test tube fixing seat and comprises a clamping assembly and a pushing assembly, the clamping assembly is used for fixing an injector above the fixing hole, the pushing assembly comprises a pushing driving part and a pushing head, and the pushing driving part is used for driving the pushing head to move towards the clamping assembly; therefore, the push head can push a piston push rod of the injector fixed in the clamping assembly. Therefore, after the test tube and the injector are effectively fixed, the push head can accurately push the piston push rod of the injector according to an external control signal by pushing the driving piece, so that liquid in the injector can be quantitatively injected into the test tube, and accurate quantitative control can be realized.

The invention discloses a non-intrusive monitoring in-plane and thickness-direction integrated permeability testing device and method for a three-dimensional fabric preform. The device comprises a permeability testing die cavity system, a lifting compaction system, a vacuum generation system, a liquid injection and cleaning system and a signal detection and observation system. The non-intrusive sensing system has no influence on system sealing and permeability test liquid flowing in a three-dimensional fabric preform medium; a sample central point liquid injection mode can avoid a competitive effect caused by contact between permeability test liquid and the mold; accurate regulation and control of a compaction state are realized through a compression test of the three-dimensional fabric preform; the method is suitable for a three-dimensional fabric preform which is small in internal gap and cannot be provided with an intrusive sensor; the integrated measurement of the in-plane and thickness-direction permeability is realized, and a plurality of sets of molds do not need to be designed; and a liquid inlet pipeline and a cleaning pipeline are introduced, so that the test can be repeatedly carried out conveniently.

The invention belongs to the technical field of energy storage, and particularly relates to an automatic liquid injection tool system. The automatic liquid injection tool system comprises a liquid suction pipeline, a pulse driving module, a liquid injection pipeline and a first pressure detection module. According to the automatic liquid injection tool system, the pulse driving module is used for synchronously exhausting the gas in the pipeline of the energy storage system in the liquid injection process, so that the situation that the operation of the energy storage system is affected by gas residues in the liquid injection process is avoided. Meanwhile, the first pressure detection module is used for monitoring the pressure of the cooling liquid in the liquid injection pipeline in real time, and when the pressure reaches a preset threshold value of the first pressure detection module, the pulse driving module stops running, so that automatic liquid injection control is achieved. Compared with an existing vacuumizing liquid injection and flow pump liquid injection scheme, the automatic liquid injection tool system does not need to use vacuum equipment, and complexity and cost when the vacuum liquid injection scheme is adopted are reduced; and compared with a flow pump liquid injection scheme, the problem of gas residues in the energy storage system can be effectively solved.

The utility model relates to a resolution ratio die body and scanning equipment, the resolution ratio die body comprises a housing and an inner core, two ends of the housing along the axial direction are respectively provided with a liquid inlet and an extraction opening; the inner core is provided with a plurality of hot stove hole sets, each hot stove hole set comprises a plurality of hot stove holes arranged at intervals, and the hot stove holes penetrate through the inner core in the axial direction of the inner core. Wherein the liquid inlet, the hot stove hole and the extraction opening are communicated to form a liquid injection channel, and liquid in the liquid injection channel flows from the liquid inlet to the extraction opening. The liquid inlet, the hot stove hole and the exhaust hole are communicated to form the liquid injection channel, and the liquid flows from the liquid inlet to the exhaust hole, so that the liquid flows in a single direction, bubbles in the liquid in the hot stove hole are expelled by suction in the liquid injection process, the defect that bubbles are easy to generate in the prior art is overcome, and the liquid injection efficiency is improved. Therefore, the accuracy of resolution evaluation is improved.

The invention provides a uranium ore in-situ leaching solute transport regulation and control method and system based on three-dimensional geological modeling. According to the method, the high-frequency pressure data of the liquid injection well are obtained and combined with the three-dimensional geologic model to construct the permeability distribution field, and the abnormal high-pressure blocking coordinate set is extracted. Magnetic anomaly signals caused by iron ion concentration changes of the leaching agent are synchronously collected, the space gradient of the magnetic anomaly signals is converted into a solute transport trajectory diagram, and a solute diffusion lag map is constructed based on the trajectory diagram. And further extracting a lagging boundary coordinate set, and performing space matching with the abnormal high-voltage blocking coordinate set to generate a blocking retention incidence matrix. And dynamically adjusting a liquid injection well pressure gradient distribution strategy according to the matrix, and generating a pumping and injection flow adjusting instruction to inhibit a leaching dead angle. According to the technical scheme provided by the invention, the efficiency and precision of uranium ore in-situ leaching solute transport regulation and control can be improved.

The invention belongs to the technical field of petroleum and natural gas drilling engineering, and discloses a device and method for testing wellbore pressure during simulated gas cut shut-in, and the device comprises a gas-liquid conveying and backflow system, a wellbore simulation system and a control and data acquisition system; the shaft simulation system comprises a simulation drill string, a simulation sleeve and an electric flat valve; the gas-liquid conveying and backflow system comprises a liquid injection pipeline, a liquid conveying pump, a liquid inlet pipeline, a liquid storage tank, a liquid return pipeline, a gas-liquid separator, an exhaust pipeline, a suction pump, a liquid discharge pipeline, a gas return pipeline, a nitrogen compressor, a gas injection electromagnetic valve and a gas injection pipeline; the control and data acquisition system comprises a control cabinet and a data acquisition unit. According to the invention, the pressure change of the shaft under different factors during the gas cut shut-in period can be effectively simulated, the pressure data is restored through the similarity principle, the pressure data is compared with the actual pressure grade of the wellhead blowout preventer, the maximum internal pressure resistance strength of the casing and the formation fracture pressure, and the safety and reliability of overflow shut-in are evaluated.

The invention discloses a sample pretreatment mechanism which comprises a first material taking mechanism and a cover opening and closing mechanism, the first material taking mechanism is used for carrying a first material to a cover opening position, the cover opening and closing mechanism is used for opening a cover of the first material at the cover opening position, and the first material is used for containing a liquid sample; the second material taking mechanism is used for carrying a second material to a liquid injection position; the liquid separation mechanism comprises a material taking assembly and a driving assembly, the material taking assembly is used for taking a third material, the third material is provided with a volume-variable open cavity, and the driving assembly is used for driving the cavity of the third material to change so as to realize suction and discharge of the liquid sample by the third material; the operation position of the material taking assembly at least passes through the cover opening position and the liquid injection position. The sample pretreatment mechanism provided by the invention can realize automatic arrangement of the sample container and the split charging bottle, and can realize automatic liquid taking and liquid injection processes through the material taking assembly, and manual operation is not needed, so that the split charging efficiency is improved.

The invention discloses an electromagnetic and hydraulic combined bulging and correcting method for a pipe plate. The method comprises the steps of 1, feeding treatment, 2, electromagnetic pre-activation treatment, 3, hydraulic precise bulging treatment, 4, pressure maintaining and shaping treatment, 5, electromagnetic and hydraulic collaborative correcting treatment and 6, material taking and post-treatment. The device comprises a machine frame which is vertically symmetrical and provided with a forming lower die and an opening and closing upper die through a hydraulic oil cylinder, a temperature sensor and a strain gauge are embedded in the lower side in a die cavity, high-frequency induction coils are arranged on the outer surfaces of the forming lower die and the opening and closing upper die, and a pulsed magnetic field generator is embedded in the top in the opening and closing upper die. A liquid injection opening is formed in the side edge of the upper opening and closing mold and is connected with a high-pressure oil pump through a pipeline; a main controller is further arranged on the rack; through a staged coupling process, the deformation resistance during bulging is reduced, elastic recovery is eliminated through cooperative shape correction, meanwhile, the device integrates multiple modules, real-time matching of electromagnetic parameters and hydraulic pressure is achieved, and the device adapts to forming of pipe plates made of different materials and in complex shapes.

The utility model relates to the technical field of gas-liquid separation, and discloses a gas-liquid separation system of electrolytic bath test equipment, which comprises a first-stage gas-liquid separation tank, an injection port is fixedly connected to the outer wall of the first-stage gas-liquid separation tank, a second-stage gas-liquid separation tank is arranged on the outer wall of the first-stage gas-liquid separation tank, and the injection port is fixedly connected to the injection port. A gas exhaust port is formed in the top of the second-stage gas-liquid separation tank, a drain valve is arranged at the bottom of the second-stage gas-liquid separation tank, the drain valve is provided with a drainage assembly, and the drainage assembly is used for discharging liquid water in the second-stage gas-liquid separation tank. According to the gas-liquid separation system, liquid enters the drainage system through the steam trap after passing through the gas-liquid separation tank, gas upwards passes through the gas exhaust port, and generated hydrogen and oxygen are subjected to gas cooling and water separation treatment through the first-stage gas-liquid separation system and the second-stage gas-liquid separation system of the system, so that the problem that the water content of a gas source is relatively high is solved, and the flow measurement precision is improved.

The utility model relates to the technical field of rare earth ore mining, and particularly discloses movable ore leaching liquid injection equipment which comprises a base and a delivery pump mounted at the top of the base, the liquid outlet end of the conveying pump is connected with the injection pipe through the conveying pipe, four sets of moving wheels are installed on the base, the top of the base is connected with a lifting frame, a lifting plate is slidably arranged on the lifting frame, a lead screw is rotatably installed on the lifting frame, a screw hole in threaded connection with the lead screw is formed in the lifting plate, and a fixing piece used for installing the injection pipe is arranged on the lifting plate. The top of the lifting frame is connected with a supporting plate. An auxiliary wheel and a limiting wheel used for assisting delivery of the conveying pipe are rotationally installed on one side of the supporting plate. The device is convenient to move, the horizontal position and height of the injection pipe can be conveniently adjusted when the device moves to a target position, and injection of ore leaching liquid is facilitated; the rotating piece rotates, the auxiliary wheel rotates, the limiting wheel assists the conveying pipe to be conveyed out of the side close to the injection pipe, friction of the conveying pipe in the moving process is reduced, and pulling borne by the injection pipe in the conveying pipe is reduced.

The invention discloses a dynamic permeability testing system and method for hydrate core production by a pressure reduction or heat shock method, and the system comprises a dynamic permeability testing unit (1) which is used for the preparation of a natural gas hydrate core sample and the measurement of permeability; the gas and liquid injection unit (2) is used for injecting required gas and liquid into the dynamic permeability testing system; the hydraulic oil control unit (3) is used for applying axial pressure and confining pressure to the dynamic permeability testing system; the gas-liquid separation metering unit (4) is used for metering the gas-liquid flow at the outlet; and the data acquisition monitoring and control unit (5) is used for monitoring data of each unit and controlling each unit to work. According to the invention, the natural gas hydrate-containing rock core can be subjected to pressure drop under the triaxial stress condition or the production dynamic permeability test by a heat shock method.