1137results about "Direct flow property measurement" patented technology

The approach presented here relates to an analysis device (100) for analyzing a viscosity of a fluid (217). The analysis device (100) comprises a detection device (110) and a provisioning device (115). The detection device (110) is formed to determine the viscosity of the fluid (217) using at least one Doppler parameter of a Doppler spectrum of the fluid (217). The provisioning device (115) is formed to provide or transmit a viscosity signal that represents the viscosity determined by the detection device (110).

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 approach presented here relates to an analysis device for analyzing a viscosity of a fluid. The analysis device comprises a detection device and a provisioning device. The detection device is formed to determine the viscosity of the fluid using at least one Doppler parameter of a Doppler spectrum of the fluid. The provisioning device is formed to provide or transmit a viscosity signal that represents the viscosity determined by the detection device.

The invention relates to the technical field of gas viscosity testing, in particular to a gas viscosity testing device and method suitable for multiple working conditions, the gas viscosity testing device comprises a constant temperature box, a capillary tube, a driving mechanism, a first cylinder and a second cylinder, and the first cylinder and the second cylinder have the same structure and are arranged oppositely. The device is reasonable and compact in structure, and the coaxial equal-diameter double cylinders which are oppositely mounted are adopted, so that two problems in a gas viscosity capillary method test can be solved: firstly, the gas state is adjusted, and the piston rod moves left and right by utilizing the driving mechanism, so that the volume of a rodless cavity of the cylinder is changed; in this way, the pressure increasing or reducing function can be achieved through the driving mechanism and the air cylinder, and therefore gas reaches the set pressure. The gas state is kept constant in the testing process, the first air cylinder and the second air cylinder are communicated with the capillary tube to form a closed testing loop in the testing process, the gas flow in the testing loop can be adjusted by changing the movement speed of pistons of the two air cylinders, and the requirement for conducting multiple sets of tests in the same gas state is met.

The invention discloses a composite solid propellant slurry flow velocity testing device and a testing method, and relates to the technical field of composite solid propellant slurry flow property testing, the composite solid propellant slurry flow velocity testing device comprises a base, an electronic balance is arranged at the bottom of the inner side of the base, and a propellant grain separation mechanism is arranged at the top of the inner side of the base. A composite solid propellant slurry containing and heating mechanism and a shell are arranged at the top of the base, the shell is located on the outer side of the composite solid propellant slurry containing and heating mechanism and fixedly connected with the base, and a driving mechanism is arranged at the top of the inner side of the shell; a synchronous sealing mechanism is arranged at the bottom end of the driving mechanism; and a pressurizing mechanism is arranged outside the driving mechanism. According to the propellant grain cleaning device, a plurality of formed propellant grains can be synchronously cleaned after testing is completed, the automation degree is higher, the operation difficulty is lowered, manpower is saved, and meanwhile the cleaning time is shortened.

The invention belongs to the related technical field of lubricating oil detection, and particularly discloses a vehicle lubricating oil testing device and a testing method.The vehicle lubricating oil testing device comprises a detection table, a detection computer and an X-axis sliding rail mechanism, and the X-axis sliding rail mechanism is erected above the detection table through installed supporting bases on the two sides of the upper end face of the detection table; a sliding seat is slidably installed outside the X-axis sliding rail mechanism, an L-shaped frame is fixedly connected to the outer side of the sliding seat, a hard pipe is connected to the upper portion of the interior of the L-shaped frame through an arranged lifting piece, and an oil scraping sealing cylinder is connected to the lower portion of the exterior of the hard pipe through a clamping shell fixedly connected in a sleeving mode. Efficient and accurate batch detection of the viscosity of the lubricating oil is achieved, the problems that traditional detection is low in efficiency, prone to pollution and poor in data reliability are solved, and the detection requirements of multiple types of lubricating oil are met.

The invention relates to the technical field of laser displacement meters, discloses a calibration method of a laser displacement meter for a Beidou device based on multi-data coupling, and effectively solves the problems of time delay compensation and data synchronization of cooperative work of multiple devices in a dynamic environment. According to the invention, when a carrier moves at a high speed or environmental parameters suddenly change, submillimeter-level positioning precision can still be maintained, meanwhile, data processing delay is controlled within a millisecond-level range, the reliability of a measurement system under a complex working condition is remarkably improved, and through double marking of a GNSS timestamp and a local clock, the measurement precision is greatly improved. And an accurate time deviation observation value is provided for a subsequent time delay compensation algorithm, so that a time-space unified data basis is established in a data preprocessing stage, and the feasibility of multi-source heterogeneous data fusion is remarkably improved.

The invention belongs to the technical field of workability detection, regulation and control of fresh concrete, and discloses a workability detection, regulation and control method and system for concrete in a mixer truck, and the method comprises the following steps: installing a rheological shearing device and a temperature testing device in a barrel of the mixer truck, and driving a shearing rod piece to shear in the concrete by utilizing the rotation of the barrel, the rheological property of the concrete can be directly tested, and the working property is obtained through the relationship between the rheological property and the working property. The test is started before the concrete mixer leaves the factory, the concrete rheological property is continuously measured in the transportation process, the change degree and trend of the concrete rheological property are evaluated, an evaluation result is compared with a preset limit value, and when the evaluation result reaches and exceeds the limit value, an alarm is immediately given and an admixture is automatically supplemented for regulation and control. The rheological property of the concrete can be continuously monitored, finely adjusted and pre-adjusted in real time in the whole transportation process, so that the concrete can be kept in a required set interval range. According to the invention, the directness, real-time performance and accurate regulation and control of workability detection of concrete during transportation can be realized.

A method of determining viscosity can include connecting a bypass flow passage in parallel with a main flow passage, connecting a mass flowmeter and a variable flow restrictor in the bypass flow passage, and connecting at least one viscometer to the bypass flow passage. A rheology measurement apparatus can include a bypass flow passage connected in parallel with a main flow passage, a mass flowmeter connected in the bypass flow passage, and a pipe viscometer connected in the bypass flow passage. Another bypass flow passage may be connected in parallel with the main flow passage, with another mass flowmeter connected in the second bypass flow passage.

The invention relates to the technical field of material physical property testing, and discloses an injectable hydrogel wound dressing tensile strength testing method, which comprises: establishing a correlation model of the mass and the maximum fracture load of a standard sample at different temperatures, and the correlation model of the initial rigidity and the temperature; measuring the mass and the actual maximum fracture load of the to-be-measured sample, and determining the actual initial rigidity of the to-be-measured sample; according to the method, the actual initial stiffness is calculated, the equivalent temperature of the test is converted by utilizing the actual initial stiffness, the standard theoretical maximum fracture load is calculated in combination with the sample mass and the corresponding model, and the performance is judged by comparing the two, so that the measurement of the geometric dimension of an irregular sample is avoided by constructing the correlation between the mass and the mechanical performance; the quality control problem of an in-situ forming material is solved, and the reliability of a judgment result in an industrial environment is further ensured by utilizing mechanical response data of the same test through an integrated temperature self-adaptive calibration mechanism.

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 relates to the technical field of ecological restoration, in particular to a cylindrical permeation grouting range determining method and system considering the tortuosity of a porous medium, and the method comprises the following steps: collecting porous medium characteristic data and underground water pressure at a selected grouting point position; meanwhile, Bingham cement grout characteristic data are collected, and grouting parameters are set; the tortuosity of the porous medium is considered, and then the seepage velocity of Bingham cement grout is determined based on a rheological equation of Bingham fluid and a mechanical analysis equation of an infinitesimal body in the grouting pipe; and under the condition of the cylindrical diffusion boundary, a cylindrical permeation grouting range solving model is constructed based on the seepage velocity and the unit time grouting amount calculation formula, and the cylindrical permeation grouting spatial diffusion range quantitative index is solved according to the grouting parameters so as to determine the cylindrical permeation grouting range. The grouting quality and reliability in the ecological restoration project can be improved, the construction requirement under the complex ecological engineering environment is met, and effective restoration and sustainable development of an ecological system are achieved.

The utility model belongs to the technical field of adhesive flowability detection, and particularly relates to an adhesive flowability detection device which comprises a workbench, a collection box fixedly mounted on the workbench, two fixed columns fixedly mounted on one side of the collection box on the workbench, and an inclined plate rotatably mounted between the two fixed columns, a plurality of transparent pipes are fixedly mounted at the top of the inclined plate; the rotating assembly is located on the workbench and used for driving the inclined plate to rotate; the transparent tube is fixedly installed on the workbench, the U-shaped plate is fixedly installed on the workbench, a plurality of raw material boxes are fixedly installed on the top of the U-shaped plate, a sliding groove is formed in the U-shaped plate, and discharging ports of the raw material boxes are communicated with the sliding groove. Therefore, the flowability conditions of the adhesive at different inclination angles can be recorded, and flowability tests can be simultaneously carried out on different types of adhesives without errors.

The invention discloses a method for testing a melt index. The method comprises the following steps: preheating a melt charging barrel to a preset temperature, and carrying out heat preservation for a first preset time; feeding to be measured is loaded into a containing cavity of a melting charging barrel, a piston rod is inserted into the melting charging barrel, a mass piece with the first weight is added to the piston rod, the feeding to be measured is melted into molten feeding under the pressure of the piston rod and is compacted, and therefore falling materials with the preset length are exposed out of a discharging opening of the melting charging barrel; switching the weight of the mass piece on the piston rod from the first weight to the second weight, so that the to-be-detected feed flows out of the discharge port under the pressure of the piston rod and is cut to obtain a plurality of sections of first to-be-detected samples, and calculating the melt index of the to-be-detected feed; the range of the first weight is 2.16 kg to 10 kg, and the range of the preset length is 1 cm to 30 cm. Therefore, the air in the melt charging barrel can be exhausted, the components of the to-be-tested feed are more uniform, the uniformity of the first to-be-tested sample is improved, the fluctuation of the tested melt index is reduced, and the accuracy of the test result is improved.

The invention discloses a liquid viscosity detection device, and particularly relates to the field of viscosity detection.The liquid viscosity detection device comprises a base, a control box and a bathtub are arranged on the base, the bathtub is used for containing constant-temperature bath liquid, a cylinder cover covers the bathtub, an opening is formed in the cylinder cover, and a capillary tube clamp is arranged at the opening; the capillary tube clamp is used for clamping the capillary tube viscometer, the capillary tube viscometer extends into the bathtub, a heating assembly and a stirrer are mounted on the cylinder cover, the heating assembly is used for heating constant-temperature bath liquid, and the stirrer is used for stirring the constant-temperature bath liquid. The capillary viscometer extends into the bathtub, the constant-temperature bath liquid is heated by the heating assembly, and the stirrer is used for stirring to uniformly distribute heat, so that the temperature of the to-be-detected liquid in the capillary viscometer can be kept constant, and the viscosity of the to-be-detected liquid under a certain temperature condition can be detected; and the influence of environment temperature change is avoided.

A flow measurement apparatus can include a main flow passage, a bypass flow passage having an inlet and an outlet connected with the main flow passage, a mass flowmeter connected in the bypass flow passage between the inlet and the outlet, and a flow restrictor connected in the bypass flow passage between the inlet and the outlet. A method can include connecting the flow measurement apparatus, so that a fluid flow in the well also flows through the flow measurement apparatus, and determining at least one rheological parameter of a non-Newtonian fluid, based on an output of the flow measurement apparatus.

A filter device includes a housing including a columnar portion having a columnar shape and provided at a filter device including a filtration member that filters a liquid, a pressure difference detection unit provided at the housing and configured to detect a pressure difference between a pressure upstream of the filtration member and a pressure downstream thereof, a viscosity sensor configured to measure viscosity of the liquid, and a temperature sensor configured to measure a temperature of the liquid are included. A hollow portion is provided inside the columnar portion, both ends of the hollow portion being covered, the hollow portion is provided with the viscosity sensor and the temperature sensor, and a communication hole that allows the hollow portion and a space outside the housing to communicate with each other is provided in the housing.

The invention relates to the field of glue fluidity detection, and discloses a steel nail glue processing technology and a sampling detection device.According to the technical scheme, the sampling detection device for steel nail glue processing comprises a processing box body, a synthesis tank is arranged in the processing box body, mixing blades are arranged in the synthesis tank, and the sampling detection device further comprises a detection plate arranged on one side of the processing box body; the detection plate is rotatably connected to the processing box body, a glue dripping film is arranged on the detection plate, scale marking lines are arranged on the upper surface of the detection plate, and the synthesis tank is communicated with a sampling pipe; the sampling component can intermittently extract a glue sample from the synthesis tank in the mixing process and send the glue sample into the defoaming pipe for rotation and vibration defoaming, so that bubbles in the sample are effectively removed, and the accuracy of fluidity detection is improved. After being processed, a sample drips on the inclined detection plate and naturally flows along the glue dripping film covering the surface of the sample, and the flowability of the glue can be visually judged through the scale marking lines.

A system and method of testing pre-formed particle gels in an artificial fracture system may include introducing a suspension including a pre-formed particle gel into a testing device that includes an artificial fracture setup with a plurality of fracture model units. The system may be configured to inject pre-formed particle gels into an accumulator with magnetic stirrers first and then into a series of fracture model units configured to receive a fluid through a flow channel and, change the flow channel in a transverse direction relative to the direction of the fluid flow.

The utility model discloses a multi-parameter automatic detection device for slurry, which relates to the technical field of slurry performance detection and comprises a detection box, and a specific gravity detection module, a viscosity detection module and a sand content detection module are sequentially distributed in the detection box from top to bottom. An input port of the specific gravity detection module is provided with a slurry taking device for sampling to-be-detected slurry and a water taking device for pumping clear water into the detection box for use; a partition plate for supporting the specific gravity detection module is arranged in the detection box; the sand content detection module comprises a filtering bin and a sand content detector arranged below the filtering bin, a filtering opening is formed in the side wall of the bottom of the filtering bin, and a screen used for filtering mud is installed on the filtering opening. The device can realize automatic detection of three parameters of specific gravity, viscosity and sand content of slurry, is simple, convenient and quick to operate, effectively reduces errors caused by manual operation, and greatly improves the efficiency and accuracy of slurry performance detection.

The present invention discloses a water-coal slurry fluidity detector, which specifically relates to the field of water-coal slurry detection technology, including a base, a diversion detection component is arranged on the base, the diversion detection component includes a support arranged on the base, a cover plate is arranged on the top of the support, and a first delivery pipe is arranged on one side of the cover plate. The present invention realizes the function of gathering the fluid water-coal slurry by delivering the water-coal slurry to the top of the sealing disk and the diversion cavity through the second impeller. As the fluid water-coal slurry in the diversion cavity gradually increases, the fluid water-coal slurry can be diverted and transported through each diversion detection tube. The flow meter in the diversion detection tube first detects the flow of the water-coal slurry transported by the diversion detection tube, and the speed of the second impeller during rotation is fixed, and then the pressure during the extraction and transportation of the water-coal slurry is also fixed, so as to avoid the pressure difference and cause inaccurate detection.

An example device for selection of one or more masses among a plurality of masses arranged and removably fixed to a guide of a main frame of a test machine for determining material properties of a material during a test, the selected mass or masses allowing to push an effector for performing the test, the device comprising: a means for selecting at least one mass among said plurality of masses, comprising a means to determine which mass or masses are selected, said means to determine being configured to send a signal indicative of which mass or masses are selected to a computing unit for controlling a test process using the selected mass or masses.

The invention relates to the technical field of viscosity testers, and discloses a high-precision asphalt kinematic viscosity tester calibration device, which comprises a main body assembly, a tester and a protection frame, and the protection frame is arranged below the tester; the positioning assembly is arranged on the protection frame and comprises a positioning piece and a locking piece, the positioning assembly comprises a supporting frame, the supporting frame is located on the inner side of the protection frame, a supporting rod is movably connected in the protection frame, a supporting sleeve is fixed to one side of the supporting rod, a positioning rod is fixed in the supporting frame, and the positioning rod is movably connected with the interior of the supporting rod. The device has the beneficial effects that through the arrangement of the positioning assembly, the rotor can be positioned, the rotor can keep a stable inclination angle when entering the asphalt, and the rotor can be slowly restored to a vertical state after entering the asphalt, so that the condition that bubbles are generated in the asphalt is avoided, and when the rotor is moved out of the asphalt, the rotor is prevented from being damaged. And the rotor can be cleaned through the cleaning assembly.

The invention relates to the technical field of ethylene tar stabilizer detection, in particular to a viscosity detection device for an ethylene tar stabilizer, which comprises a frame body and a transparent plate fixedly connected to the frame body in a penetrating manner, a console is fixedly connected to the frame body, a mounting rack is rotatably connected to the frame body, and a capillary viscometer is fixedly connected to the mounting rack. A right air cylinder is started to drive a right hollow blocking block to move through a fixing plate to block an air inlet pipe, then a driving motor is started, the hollow blocking block carries out suction treatment on the interior of the air inlet pipe, and a cleaning agent continuously flows in a reciprocating mode to clean the interior of the capillary viscometer; meanwhile, the middle air cylinder and the left air cylinder are started in sequence to enable the rubber sleeve and the left hollow blocking block to block the capillary viscometer, so that a cleaning agent in the capillary viscometer can be automatically sucked to complete comprehensive cleaning, a person does not need to cooperate with an ear washing bulb for cleaning, the operation is convenient, and the working efficiency is improved. Therefore, the subsequent detection efficiency of the viscosity of the ethylene tar stabilizer is improved.

To continuously measure properties of mud in a chamber of a shield drilling machine.SOLUTION: A mud evaluation system comprises: a storage unit that, on the basis of the results measured for a flow property in a condition in which a wetting density and a water content of a sample to be measured are adjusted, stores evaluation data representing a relation between a combination of the wetting density and the water content, and the measured flow property; a first acquisition unit for acquiring the wetting density and the water content measured by an instrument that measures the wetting density and the water content of mud in a chamber of a shield drilling machine; and a second acquisition unit for acquiring flow properties corresponding to the acquired combination of wetting density and water content from the evaluation data stored in the storage unit.SELECTED DRAWING: Figure 1

The invention relates to the technical field of material performance testing, in particular to a neat paste flow testing method and system based on multi-mode dynamic imaging. The test method comprises the following steps: collecting a continuous infrared image sequence of a neat paste free flowing process; synchronously triggering visible light supplement in a flowing initial stage, and obtaining at least one frame of visible light image; performing registration fusion on the visible light image and the infrared image at the corresponding moment to generate an enhanced image frame; extracting a neat paste contour in real time based on the enhanced image frame, and calculating dynamic parameters; according to the change trend of the dynamic parameters, the flowing stability opportunity is adaptively judged; and triggering final contour extraction at a stable opportunity, and calculating static morphological parameters and dynamic process parameters. Through the multi-modal dynamic imaging and intelligent image fusion technology, complex edge contours are accurately extracted, impurity interference is eliminated, and the measurement precision is improved.

The utility model provides a fluidity verification tool unit and a testing device thereof, and the fluidity verification tool unit comprises a supporting main body which comprises a bottom plate, and the bottom plate is perpendicular to the height direction of the supporting main body; and the flow channel grooves are formed in the supporting body and comprise the flow channel grooves which are obliquely arranged from top to bottom in the height direction, and the included angle between the flow channel and the horizontal bottom plate ranges from 5 degrees to 75 degrees. A detected object is poured at the top end of the flow channel groove and flows downwards along the flow channel groove under the action of gravity, the time of the detected object flowing from the top end to the tail end is recorded, the flowability of polystyrene foam can be rapidly judged according to the flowing time of the detected object, and the flow channel groove and the bottom plate are arranged in an inclined mode of 5-75 degrees. The time for the detected object to flow from the top end to the tail end can be saved, and the accuracy of the recorded time can be guaranteed.

The utility model discloses an article viscosity measuring device which comprises a viscometer, a water bath box and a temperature controller, a temperature sensor is fixedly installed at the middle end of the bottom of an inner cavity of the water bath box, an electric heating pipe is fixedly installed at the lower end of the inner cavity of the water bath box, and a protective cover plate is movably connected to the top of the outer surface of the water bath box. And the right end of the protective cover plate is movably connected with a viscosity pipe. Through the arrangement of the viscosity tube, fluid needing to be tested can be contained, through the arrangement of the adjusting screw rod, the U-shaped guide plate, the guide groove, the locking clamping block and the L-shaped guide strip, the effect of rapidly clamping and fixing the viscosity tube is achieved, the viscosity tube is effectively prevented from displacing, and the working efficiency is improved. Meanwhile, through the arrangement of an electric heating pipe, a temperature sensor, a water bath box and a temperature controller, the effect of constantly regulating and controlling the temperature around the viscosity pipe is achieved, and the accuracy of subsequent detection of the viscometer on the fluid in the viscosity pipe is effectively guaranteed.

The invention discloses a device and a method for measuring the fluidity of a cement-based grouting material, and aims to provide a device and a method for measuring the fluidity of the cement-based grouting material, which are not limited by field flatness, can meet the measurement requirement of high fluidity and can accurately evaluate the fluidity of the cement-based grouting material. A device for measuring fluidity of a cement-based grouting material comprises: a cement-based grouting material preparation device, which comprises a material preparation cylinder; the residual pressure measuring device comprises a material receiving barrel and an upper infrared distance recorder, the upper end of the material receiving barrel is open, the upper infrared distance recorder is located at the opening of the upper end of the material receiving barrel, and the observation range of the upper infrared distance recorder covers an inner cavity of the whole material receiving barrel; the fluidity measuring device comprises a measuring slim tube and a lower infrared distance recorder, the measuring slim tube is connected with the bottom of the material preparation barrel and the bottom of the material receiving barrel, and the observation range of a lower infrared distance penetrates through an inner cavity of the whole measuring slim tube in the axial direction of the measuring slim tube.

The utility model discloses a melt flow rate measuring device which comprises a machine base and a control device, a smelting furnace box is arranged on the machine base, a door plate is arranged on one side of the smelting furnace box, a feeding port and a discharging port are formed in the smelting furnace box, the feeding port is communicated with a charging barrel arranged in the smelting furnace box, and the discharging port is communicated with a discharging port arranged in the smelting furnace box. A discharging opening is formed in the bottom of the charging barrel, a mouth mold is arranged at the bottom of the charging barrel, a material cutting device is arranged below the discharging opening, a material disc is arranged below the material cutting device, and a pressure sensing unit is arranged below the material disc; and the weight mechanism is used for extruding the melt. And the bottom of the charging barrel adopts a replaceable conical mouth mold design, so that mouth molds with different sizes can be replaced according to the test requirements of different plastic materials, and the universality and the flexibility of the device are enhanced. In addition, the fixture is adopted, so that the charging barrel is simple and quick to fix and replace, and the testing efficiency is improved. And the charging barrel and the mouth mold are easy to detach, so that the charging barrel and the mouth mold are convenient to clean and maintain.