30 results about "Soap film" patented technology

The invention relates to a constant-pressure steady-state gas permeability testing instrument. The constant-pressure steady-state gas permeability testing instrument is characterized in that: a gas storage cylinder (4) is internally provided with a piston (2); the piston (2) is provided with a balancing weight block (3); the left end of a rock core holder (8) is connected with one end of a drier (7) through a pipeline while the other end of the drier (7) is connected with a gas outlet of the gas storage cylinder (8); the gas inlet of the gas storage cylinder (4) is connected with an inflator pump (1) through a pipeline; the right end of the rock core holder (8) is connected with a gas flowmeter and a soap-film gas flowmeter (13) through a pipeline; the outer wall of the rock core holder (8) is provided with a ring press hole; and the ring press hole of the rock core holder (8) is connected with a ring press pump (5) through the pipeline. Based on a steady pressure principle, the constant-pressure steady-state gas permeability testing instrument adopts an internally arranged inflator pump for inflation to stabilize inlet and outlet pressures of the rock core, so that precision and stability of the rock core test are improved, and the testing error of the rock core permeability is controlled within 1%. The constant-pressure steady-state gas permeability testing instrument, disclosed by the invention, has advantages of simple structure, convenient operation, steady performance and good repeatability.

The invention discloses a gas permeability testing method used for high-compactness solid concrete. The method includes: A, forming a cylindrical concrete test piece, and obtaining a round cake test block by cutting after curing, wherein round cake thickness is 30 mm; B, drying the round cake, placing the same in a constant temperature and humidity environment until constant weight of the test block is achieved, coating a side surface of the round cake with epoxy resin, and carrying out drying; C, assembling a gas permeation unit, and connecting a gas permeation testing device gas path, wherein the unit includes a base seat, a steel sleeve of a middle section and a top cover of an upper part, the round cake-shaped concrete test block is placed in the steel sleeve, a silicone sleeve and aninflatable rubber oil bag are sequentially arranged from an inside to an outside between the test block and the steel sleeve, a gas input mouth is arranged at the base seat to connect a high-pressurenitrogen source, a gas output mouth is arranged at the top cover to connect a soap film flow meter, the inflatable rubber oil bag elastically seals a side edge of the round cake concrete test block through squeezing the silicone sleeve after inflation, inflation pressure of the inflatable rubber oil bag is 0.8 MPa, an inner diameter of a glass tube of the soap film flow meter is 3 mm, and a rangeof the soap film flow meter is 0.01 ml / min-10 ml / min; and D, carrying out gas permeability testing of the concrete test block and result calculation.

The invention relates to an electronic automatic verification device for soap film flow. The problem that output of an existing verification device is unstable and an original record of detection cannot be automatically generated is effectively solved. According to the technical scheme, the device includes an automatic stabilization gas source system, a pipeline system, a data acquisition and control system, and an upper computer verification software system; the automatic stabilization gas source system includes a gas source, one end of the automatic stabilization gas source system is communicated with a gas-liquid separator, the other end of the gas-liquid separator is communicated with a precise pressure regulating valve, the other end of the precise pressure regulating valve is communicated with a solenoid valve, the other end of the solenoid valve are communicated with three mass flow controllers with different flow ranges respectively, and the three mass flow controllers with different flow ranges refer to the small mass flow controller, the middle mass flow controller and a big mass flow controller. The other ends of the three mass flow controllers are communicated with buffering tanks with different volumes respectively, and the three buffering tanks are communicated with an air outlet. The output of the device is stable and the practicability is high.

The invention discloses a method for continuously detecting physical parameters of compact rocks. The method includes the steps: selecting a rock sample, drying the rock sample, measuring the size andweight of the rock sample, taking formation water, soaking a fiber with a gap, repeatedly rolling a rock core on the fiber, uniformly soaking the outer surface of the rock core except for two end surfaces, placing the rock sample into an adjusted nuclear magnetic resonance spectrometer to obtain a T2 spectral curve of the sample, taking out the rock sample to dry the rock sample, performing saturation treatment on the rock core by the formation water, and testing a T2 spectral curve by the nuclear magnetic resonance spectrometer; taking out the rock sample, placing the taken rock sample intoa rock core clamping device, applying displacement pressure until the displacement pressure reach a suitable displacement pressure difference value, accurately recording needed parameters after a system is stabilized, continuing to measure the rock sample by a soap film flow meter, measuring a T2 spectral curve of the rock sample again, and analyzing and calculating acquired data to obtain variousof needed parameters. The method has the advantages that data are accurate and reliable, time is saved, and the method is convenient and rapid.

The invention provides an electronic soap film flowmeter automatically producing bubbles and belongs to the technical field of flow determination. The flowmeter consists of a soap tube, a soap tube supporting system, a photoelectric sensing system, a liquid level lifting system and a liquid level adjusting system. A magnetic force is produced by utilizing direct current through multi-turn coils and combines with the elastic force of a spring itself, a heavy hammer is driven to immerse into and float out of liquid by pushing and pulling a magnetic push-and-pull rod to ascend and descend, and the liquid level is lifted and reduced according to the Archimedes law to cause periodic rise and fall of the liquid level in the soap tube. Due to the damping effect of a communicating guide tube, the liquid level rising and falling speed is low, so that there is sufficient time for contact between a measured air source and soap liquid, thin soap bubbles are formed at first during liquid level falling, and the soap bubbles gradually become larger when the liquid level continues to fall and are finally separated from the liquid level to form a soap film. The process can be automatically controlled through an upper computer or a single chip microcomputer.

The invention relates to a device and method for equal thickness interference presentation. The device includes a container with the top end provided with a circular opening. When the circular openingis sealed with a soap film, the pressure in the container can be adjusted, and when the pressure in the container is changed, the shape of the soap film can be changed. The device and method for equal thickness interference presentation can show an interference pattern of a Newton ring, and can also show a wedged interference pattern. In addition, the device can not only display an equal thickness interference pattern with the thin center and the thick periphery, but also can display an equal thickness interference pattern with the thick center and the thin edge.

The invention discloses an intermittent preparation method of nanometer hydrogen bubble / diesel mixed fuel. After diesel is added into a mixer, sealing is performed; after pressure reduction and pressure regulation, hydrogen gas is supplied to the mixer at the constant pressure of 0.5 to 5MPa; the temperature of diesel in the mixer is regulated to the constant temperature being room temperature to 150 DEG C; after the stirring is performed for 30 to 120min, air supply stops; a micro-regulation valve is opened; the gas flow speed in the soap film flowmeter is regulated to be 0.1 to 1ml / min; diesel and hydrogen overflowing flow the mixer are released; after the pressure reaches ordinary pressure, a sealing plug is taken down; an oil drain valve is opened; the released fluid is the nanometer hydrogen bubble / diesel mixed fuel. When the mixed fuel is applied, a diesel engine only needs a set of oil supply system; the regulation on oil supply system hardware is not needed; the fuel oil economical efficiency of the diesel engine is greatly improved; the pollutant discharging is reduced. The combustion performance of mixed fuel on the diesel engine is improved; the long-period stable existence of hydrogen bubbles is facilitated; the uniformity and the stability of the nanometer hydrogen bubble / diesel mixed fuel are ensured.

The invention relates to a demonstration device for a propagation path of light in a medium with a constant serving as a refractive gradient. The device comprises two glossy flat plates, the includedangle between the two glossy flat plates is smaller than 90 degrees, the bottom glossy flat plate is horizontal, the two glossy flat plates are fixedly connected through two connecting columns, and the two connecting columns are perpendicular to the horizontal glossy flat plate. The device is soaked into soapy water and then taken out, a soap film is formed between the two connecting columns, andthe intersecting line of the soap film and the bottom horizontal glossy flat plate is the propagation path of the light in the medium with the constant serving as the refractive gradient. The device can visually demonstrate the propagation path of the light in the medium with the constant serving as the refractive gradient, and is simple in structure, convenient and practical.

The invention provides a soap film water hole test device, which can realize effective control of soap film flow and can adjust test related parameters according to test requirements. The soap film water hole test device includes: an external frame, an internal frame and a position locking mechanism; the left and right ends of the internal frame are supported on the external frame by bearings, and can rotate around the axis of the bearing to change the rotation angle of the internal frame; the position locking mechanism is used After the internal frame is rotated to the set angle, the position of the internal frame is locked; the internal frame includes: brackets, bracket guide rails, wires, upper water tank, lower water tank and mold table; the mold table is used to fix the mold required for the test; the test is adopted The device can adjust the length and position of the test area, change the width of the test area (that is, the width of the soap film), and change the test angle according to the test needs; thus construct two-dimensional water tunnels with different parameters to adapt to different models; and can change the flow field velocity.

The invention provides an automatic film-opening type soap film flowmeter, comprising a soap film pipe, a soap film production device and a soap film recovery device; the soap film production device comprises a soap liquid pipe and an air intake pipe, and the air intake pipe is arranged on the upper part of the soap liquid pipe The soap film recovery device includes a soap film recovery cover, a soap recovery tube and a soap recovery cup, one end of the soap recovery tube is connected to the soap recovery cover on the top of the soap film tube, and the other end extends into the soap recovery cup; Soap liquid is housed in the recovery cup, and the bottom of the soap liquid pipe is connected to the bottom side wall of the soap film recovery cup, and the liquid level of the soap liquid is at the same height as the top of the air inlet of the air intake pipe. The invention adopts the principle of the connecting device to realize the mode of automatic film opening, which makes up for the defect of manual film opening and reduces the verification error.

The invention discloses a curved neck type model support device for soap film water tunnel experiments, relates to the field of fluid mechanics, and comprises a curved neck with a height difference at both ends and a beam with closed loops at both ends; the curved neck consists of A thin wire is bent, and there is a height difference between the front and rear ends of the curved neck, the rear end of the curved neck is higher than the front end of the curved neck, and the front end of the curved neck is inclined downward; The curved neck can conveniently adjust the position of the six degrees of freedom of the model; the filaments are fixed by the closed loops at both ends of the beam. The invention can conveniently replace the experimental model in the soap film water hole experiment, prevent the backflow of the soap liquid, and can adjust the six degrees of freedom. The material used is thin steel wire, which is easy to obtain and low in cost. The thin steel wire is easy to bend, But the rigidity is strong, which is convenient for the manufacture and use of the device.

The invention provides a soap film flowmeter capable of automatically wetting a soap tube and adjusting the liquid level speed and a testing method, and belongs to the technical field of soap film flowmeters. The flow meter comprises a soap film speed measuring module, a liquid soap buffering module, a liquid level sensing and measuring module and a gas circuit integrated control module, the soap film speed measuring module is installed on the left side of the upper portion of the liquid soap buffering module, the gas circuit integrated control module is installed on the right side of the upper portion of the liquid soap buffering module, and the liquid level sensing and measuring module is installed on one side of the bottom of the liquid soap buffering module. According to the soap film flowmeter, the purpose that the liquid level in a soap tube of the soap film speed measuring module rises and falls rapidly is achieved by controlling the pressure intensity of gas in the gas circuit integration module and through temporary storage buffering of the liquid soap buffering module. The soap film flowmeter can automatically complete the functions of soap tube wetting, liquid level monitoring, liquid level lifting speed control and the like.

The invention discloses a miniature sample-based biological reef rock conventional physical property tester device. The tester device comprises a miniature sample-based biological reef rock conventional physical property tester, a penetration rate testing device, a porosity measurement device, a booster pump, a soap film flowmeter, a pressure gauge and a switch, wherein the miniature sample-based biological reef rock conventional physical property tester comprises a cylinder body, a rubber sleeve, rubber sleeve end plugs, a cylinder body end cap, a cylinder body sealing cover and a sealing component; the cylinder body is of a hollow structure, the rubber sleeve and the rubber sleeve end plug are arranged in the cylinder body, and rock core samples are placed in the rubber sleeve; and the rubber sleeve end plugs are embedded into two ends of the rubber sleeve and are in direct contact with the rock core samples. According to the tester device, the different small-diameter rock cores can be clamped, and the normal operation of physical property testing can be guaranteed.

The invention provides a cigarette dynamic ventilation quantity detection device and a detection method thereof. The cigarette dynamic ventilation quantity detection device comprises a cigarette sealing test bin comprising a horizontally arranged piston type cylinder cavity, wherein one end of the piston type cylinder cavity is provided with a movable piston, a ventilation hole is formed in the end face of the other end of the piston type cylinder cavity, end face of the other end is further provided with a combustion end sealing part, and a filter tip end sealing part is arranged in the center of the movable piston and is connected with a smoking machine; a sealing plug inserted into the ventilation hole during detection; the lower end of a soap film flow pipe is provided with a rubber head used for accommodating liquid soap, the upper end of the soap film flow pipe is connected to a cavity body of the piston type cylinder cavity through a three-way connecting device and a first valvevia a first pipeline and is communicated with the cavity body, and the soap film flow pipe is provided with scales; and a vacuum pump is connected to the three-way connecting device through a rotating speed controller and a second valve via a second pipeline so as to be communicated to the soap film flow pipe. The cigarette dynamic ventilation quantity detection device is simple in structure andreasonable in design, and the detection method thereof is good in repeatability and easy to operate.