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56results about How to "Realize visual observation" patented technology

Foam stability test device under pressure fluctuation and working method thereof

ActiveCN104502059AMake up for the defect that the influence of variable pressure is not consideredRealize visual observationHydrodynamic testingMicro morphologyEngineering
Provided is a foam stability test device under pressure fluctuation. The foam stability test device comprises a foam generation part, a foam test part, a pressure regulation and control part and a cleaning part. The foam generation part, the pressure regulation and control part and the cleaning part are respectively connected in parallel with the foam test part, which is realized via valve control. The foam generation part and the foam test part are connected in series independently. The pressure regulation and control part and the foam test part are connected in series independently. The cleaning part and the foam test part are connected in series independently. Foam stability testing under the condition of pressure fluctuation is realized so that a defect that influence of variable pressure is not considered by the existing foam stability evaluation technology in the field of oil and gas fields is compensated. Visualized observation of the foam state under the condition of variable pressure is realized so that the foam stability test device under pressure fluctuation has important meaning in further research of change of the foam micro-morphology under the condition of foam variable pressure. The foam stability test device under pressure fluctuation is high in pressure resistance, data testing is completed under the pressure state, and the experimental data are closer to the production site of the oil and gas fields so that reliability is high.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Object-oriented non-condensable gas-containing vapor condensation visualization experiment device

The invention discloses an object-oriented non-condensable gas-containing vapor condensation visualization experiment device. The device mainly comprises a steam supply system, an air supply system, other gas supply systems, a cooling water system, a visualized experimental body and a data acquisition system. Steam and a non-condensable gas component are produced by the steam supply system, the air supply system and the other gas supply systems. A main gas supply pipe is connected to an experimental cavity and is provided with an electric valve. The electric valve can adjust an opening degreeaccording to the negative feedback of the pressure in the experimental cavity to control the steam flow. Cooling water enters an experimental pipe section through a flowmeter under the action of a water pump, is subjected to heat exchange in the experimental pipe section and then is returned into a constant temperature water bath through a water return pipe. Before the experiment, a vacuum systemrealizes a high vacuum environment in the experimental chamber. The device realizes continuous measurement, analysis and visual observation of the condensation phenomenon under different steam pressures, different subcooling degrees, different non-condensable gas components and contents, and different surface structural characteristics.
Owner:ZHEJIANG UNIV

Supersonic nozzle jet mixing experiment device

InactiveCN107655694ATest the total pressure of incoming flowTest static pressureGas-turbine engine testingJet-propulsion engine testingThermocouplePressure sensor
The invention discloses a supersonic nozzle jet mixing experiment device, which is characterized in that the device comprises a main flow nozzle and a jet nozzle. The main flow nozzle is in a rectangular tube structure; one end of a rectangular tube serves as a jet inlet end; the two sides of the jet inlet end are respectively provided with a plurality of circular holes; the circular holes are provided with a pressure sensor and a thermocouple; the other end of the rectangular tube is internally provided with an incoming flow acceleration section, which comprises a first convergence section, afirst flat and straight section and a first expansion section in sequence; the jet nozzle is communicated with the expansion section of the main flow nozzle; the jet nozzle is internally provided with a second convergence section, a second flat and straight section and a second expansion section in sequence, wherein the second expansion section is connected with the main flow nozzle; the first expansion section is provided with a plurality of through holes; the through hole is provided with a pressure sensor; the two sides of the rectangular tube are respectively provided with an observationwindow; and the observation windows are arranged at the two sides of the incoming flow acceleration section respectively. The experiment device can simulate air jet mixing phenomenon under supersonicflight.
Owner:NANJING UNIV OF SCI & TECH

Reverse transcription-loop-mediated isothermal amplification (RT-LAMP) visual detection kit for H1N2 avian influenza viruses

The invention discloses a reverse transcription-loop-mediated isothermal amplification (RT-LAMP) visual detection kit for H1N2 avian influenza viruses. The kit comprises a set of LAMP primers for detecting or assisting to detect the H1 avian influenza viruses and N2 avian influenza viruses. The primers consist of a degenerate primer FIP-H1, a degenerate primer BIP-H1, a degenerate primer F3-H1, a degenerate primer B3-H1, a degenerate primer LF-H1, a degenerate primer LB-H1, a degenerate primer FIP-N2, a degenerate primer BIP-N2, a degenerate primer F3-N2, a degenerate primer B3-N2, a degenerate primer LF-N2 and a degenerate primer LB-N2. The nucleotide sequences of the primers are shown by a sequence 1, a sequence 2, a sequence 3, a sequence 4, a sequence 5, a sequence 6, a sequence 7, a sequence 8, a sequence 9, a sequence 10, a sequence 11 and a sequence 12 in a sequence table. The RT-LAMP visual detection kit for the H1N2 avian influenza viruses has the advantages that the specificity is strong, the sensitivity is high, instrument equipment and operations are simple, and results can be conveniently observed. The RT-LAMP visual detection kit for the H1N2 avian influenza viruses is especially suitable for performing rapid diagnosis and early screening on the H1 avian influenza viruses and the H1N2 avian influenza viruses in basic-level veterinary stations, farms and frontier ports.
Owner:GUANGXI VETERINARY RES INST

Automatic detection device of electric telecontrol channel

The invention discloses an automatic detection device of an electric telecontrol channel. The automatic detection device of the electric telecontrol channel comprises a channel input-output control module, a DSP digital processing module and a PC or a laptop. The channel input-output control module is formed by modifying an existing relay control panel, the control port and the data port of the channel input-output control module are in output connection with the serial port of the PC or the laptop and the DSP digital processing module respectively, the network interface of the PC or the laptop is connected with a remote maintenance terminal through a network, and the keyboard, the mouse and the VGA port of the PC or the laptop are connected with a KVM pipe collecting system. The wave form, the curve, the data, and the source code of the channel can be displayed through the PC or the laptop, comprehensive detection can be carried out on the telecontrol channel, the quality of the telecontrol channel can be conveniently observed, analyzed and judged, and the quality of the telecontrol channel can be used as the base for the safety evaluation and the risk evaluation of the telecontrol channel. The automatic detection device of the electric telecontrol channel enables the structure to be simplified, and is less in needed hardware, small in occupied space, easy and convenient to operate and control, strong in practicality and convenient to widely popularize and apply.
Owner:YUXI POWER SUPPLY BUREAU OF YUNNAN POWER GRID

Experimental facility capable of implementing visualization of condensation of inside and outside of steam tube

The invention discloses an experimental facility capable of implementing visualization of condensation of the inside and outside of a steam tube. The experimental facility mainly comprises a steam supply system, a cooling water system, a vacuum system, a visualization experimental body and a data acquiring system. A gas supply main tube is connected with a vacuum cavity or an experimental tube section through a four-way valve, and an exhaust main tube is arranged at the rear of the cavity, and is connected with an aftercooler and a condensation tank. The aftercooler provides a cold source fromconstant-temperature water bath. A cooling water branch line enters the experimental tube section or the vacuum cavity via a flowmeter under the effect of a water pump, after heat exchange, the cooling water branch line returns to the constant-temperature water bath from a water return main tube, and the other branch line enters a tube side of the aftercooler under the effect of the water pump, and then returns to the constant-temperature water bath after heat exchange. Before an experiment, a high vacuum environment in the vacuum cavity or the experimental tube section is realized by the vacuum system. By cooperation of a front four-way valve and a rear four-way valve of the vacuum cavity, condensation of the inside of the tube or condensation of the outside of the tube can be continuously measured and analyzed and visually detected by the device under different steam pressures, different degrees of supercooling and different surface structural characteristics.
Owner:ZHEJIANG UNIV

Complex fault block oil reservoir gravitational differentiation simulation experiment device and method

PendingCN113431563ARealize visual observationEasy to observe the characteristics of gravity differentiationSurveyFluid removalVisual observationGeophysics
The invention discloses a complex fault block oil reservoir gravitational differentiation simulation experiment device. The device comprises a simulation container, an injection simulation shaft, a production simulation shaft, a remaining oil observation shaft and a partition plate assembly, the simulation container is provided with a visual transparent window, and the visual transparent window is made of a transparent material; and the injection simulation shaft, the production simulation shaft and the remaining oil observation shaft are all made of transparent materials. The invention further provides a complex fault block oil reservoir gravitational differentiation simulation experiment method, by means of the complex fault block oil reservoir gravitational differentiation simulation experiment device, the arrangement manner and position of the partition plate assembly are changed, a water drive process gravitational differentiation simulation experiment of multiple faults under interlayer shielding in different forms can be simulated, and whether the different angles of the faults are the gravitational differentiation process under the conditions of closed faults is analyzed. According to the device, the gravitational differentiation characteristics of multiphase fluid under various conditions can be conveniently observed, the visual observation of the gravitational differentiation phenomenon is realized, and convenience is provided for oil reservoir exploitation.
Owner:YANSHAN UNIV

Electric control system of small engine dismounting device

The invention provides an electric control system of a small engine dismounting device. A mechanical part of the small engine dismounting device comprises a walking mechanism, an elevating mechanism and a fine tuning mechanism, and the three mechanisms are driven to dismount an engine effectively. The electric control system comprises a programmable logic controller, a communication module, a power unit, a touch screen, a laser range finding module, a pressure sensor, a digital video monitoring unit, a servo controller, a motor, the walking mechanism, the elevating mechanism and the fine tuning mechanism. The electric control system uses data processing, servo motion and control and motor driving manners to realize automatic control and accurate positioning of the engine dismounting device; the engine dismounting process can be observed visually via digital video monitoring, and the burden of manual operation is reduced; and a traditional simple control manner via a single-chip microcomputer is changed, the anti-interference capability of the system is improved, the automatic degree and reliability of the control system are improved, the working efficiency is improved, and intelligent detection and control are realized.
Owner:SHENYANG AIRCRAFT CORP

A micro-scale liquid cooler heat dissipation performance testing system and testing method

The invention discloses a test system and method for the cooling performance of a microscale liquid cooler. The test system for the cooling performance of the microscale liquid cooler comprises the microscale liquid cooler, a heating device, a temperature measurement system, a cooling liquid circulator, a metering pump and a diverter. According to the test system, on one hand, high reliability, high accuracy and high precision of a micro-fluid division control technology are utilized, and the temperature, the flow and the pressure of the cooling liquid are accurately controlled step by step through the cooling liquid circulator, the metering pump and the diverter, so as to achieve accurate control of low-flow or extra-low flow cooling liquid; on the other hand, a surface temperature field of the heating device is monitored in real time by adopting an advanced infrared thermal imaging technology; visual observation of a working temperature field of a microscale device is achieved. By adopting the test system, the accuracy, the precision and the reliability of measurement of the cooling performance of the microscale liquid cooler are greatly improved; the test system is especially suitable for test of the cooling performances of the microscale liquid coolers for aerospace, information communication, transportation and medical treatment, automatic control, consumer electronics and the like.
Owner:PEKING UNIV

RT-LAMP (reverse transcription loop-mediated isothermal amplification) visual detection kit for H1N1 subtype avian influenza viruses

The invention discloses an RT-LAMP (Reverse Transcription Loop-mediated isothermal amplification) visual detection kit for H1N1 subtype avian influenza viruses. The kit comprises an LAMP primer set for detection or auxiliary detection of H1 subtype and N1 subtype avian influenza viruses, wherein the primer set comprises degenerate primers FIP-H1, BIP-H1, F3-H1, B3-H1, LF-H1, LB-H1, FIP-N1, BIP-N1, F3-N1, B3-N1, LF-N1 and LB-N1, and the nucleotide sequences of the degenerate primers are respectively sequences 1 to 12 in a sequence table. The RT-LAMP visual detection kit has the advantages of good specificity, high sensitivity, simple instrument and equipment and easiness in operation, and convenience in result observation, and is particularly suitable for quick diagnosis and early screening of the H1 subtype and H1N1 subtype avian influenza viruses in grassroots veterinary stations, livestock farms and frontier ports.
Owner:GUANGXI VETERINARY RES INST

Shale reservoir post-fracturing seepage microscopic model, manufacturing method and experimental device

The invention belongs to the field of shale oil and gas reservoir research, relates to a shale reservoir post-fracturing seepage micro-model, a manufacturing method and an experimental device and aims to simulate a reservoir microscopic model with a micron-sized pore throat according to the characteristics of low porosity and low permeability of shale oil and gas reservoirs so as to solve the problem that the seepage characteristics of fluids in shale are difficult to observe macroscopically. The manufacturing process of the microscopic model roughly comprises three parts: firstly, manufacturing a mask, and exposing the mask to obtain a model diagram required to be used; performing exposure treatment on a substrate by using the mask, transferring an etching pattern to a photoresist, transferring the etching pattern to a chromium layer from the photoresist, and then transferring the etching pattern to the substrate; and finally, carrying out anodic bonding to manufacture the substrate, thereby obtaining the microscopic model. The microscopic model can be combined with an image acquisition device and an image display device to carry out visual research on injected fluid in the microscopic model, and the flowing condition of the fluid in a micron-sized fracture-matrix reservoir is observed.
Owner:SOUTHWEST PETROLEUM UNIV

A foam stability testing device and working method under pressure fluctuation

ActiveCN104502059BMake up for the defect that the influence of variable pressure is not consideredRealize visual observationHydrodynamic testingEngineeringVariable pressure
A foam stability testing device under pressure fluctuations, a foam stability testing device under pressure fluctuations, comprising a foam generating part, a foam testing part, a pressure regulating part and a cleaning part; the foam generating part, the pressure regulating part and the cleaning part They are respectively connected in parallel with the foam testing section, and realized through valve control: the separate series connection of the foam generating section and the foam testing section; the separate series connection of the pressure regulation section and the foam testing section; the separate series connection of the cleaning section and the foam testing section. The invention realizes the test of the foam stability under the condition of pressure fluctuation, and makes up for the defect that the existing foam stability evaluation technology in the field of oil and gas fields does not consider the influence of variable pressure. The invention realizes the visual observation of the foam state under variable pressure conditions, and is of great significance for further studying the changes of foam microscopic forms under variable pressure conditions. The invention has strong pressure resistance, and the test data are all completed under pressure, and the experimental data is closer to the oil and gas field production site, with high reliability.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Reverse transcription-loop-mediated isothermal amplification (RT-LAMP) visual detection kit for H1N2 avian influenza viruses

The invention discloses a reverse transcription-loop-mediated isothermal amplification (RT-LAMP) visual detection kit for H1N2 avian influenza viruses. The kit comprises a set of LAMP primers for detecting or assisting to detect the H1 avian influenza viruses and N2 avian influenza viruses. The primers consist of a degenerate primer FIP-H1, a degenerate primer BIP-H1, a degenerate primer F3-H1, a degenerate primer B3-H1, a degenerate primer LF-H1, a degenerate primer LB-H1, a degenerate primer FIP-N2, a degenerate primer BIP-N2, a degenerate primer F3-N2, a degenerate primer B3-N2, a degenerate primer LF-N2 and a degenerate primer LB-N2. The nucleotide sequences of the primers are shown by a sequence 1, a sequence 2, a sequence 3, a sequence 4, a sequence 5, a sequence 6, a sequence 7, a sequence 8, a sequence 9, a sequence 10, a sequence 11 and a sequence 12 in a sequence table. The RT-LAMP visual detection kit for the H1N2 avian influenza viruses has the advantages that the specificity is strong, the sensitivity is high, instrument equipment and operations are simple, and results can be conveniently observed. The RT-LAMP visual detection kit for the H1N2 avian influenza viruses is especially suitable for performing rapid diagnosis and early screening on the H1 avian influenza viruses and the H1N2 avian influenza viruses in basic-level veterinary stations, farms and frontier ports.
Owner:GUANGXI VETERINARY RES INST
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