8results about How to "The experimental data is accurate" patented technology

The application is a kind of simulation field drilling experimental device and experimental method for hydrate drilling fluid, which comprises a multilayer experimental cylinder, a water depth environment simulation device, a drilling running device, a drilling fluid feeding device, a slurry returning device and a data acquisition system. The multilayer experimental cylinder comprises at least two cylinder sections, and each cylinder section is independently configured with rock layers to simulate various formation environments. The water depth environment simulation device injects pressure into the multilayer experimental cylinder to simulate the environmental pressure of water depth. The drilling running device simulates downhole drilling. The drilling fluid feeding device is used to circulate and inject drilling fluid into the multilayer experimental cylinder through a drill pipe and a drill bit. The slurry returning device is used to circulate and return the drilling fluid to the drilling fluid feeding device and evaluate the hydrate content in the returned fluid. The application simulates the temperature and pressure environment of offshore gas field with low temperature and high pressure in the laboratory experimental device, and sets different rock layer compositions and experimental conditions of hydrate content, which can optimize the formula of drilling fluid and reduce the risk of hydrate generation during drilling.

The application discloses a fracturing fluid viscosity reduction simulation experiment system based on ultrasonic cavitation effect, which comprises a cavity, an ultrasonic cavitation mechanism, a laser measuring mechanism, an infrared observation mechanism, a loading mechanism and a data acquisition computer, the ultrasonic cavitation mechanism comprises an ultrasonic wave driving controller and an ultrasonic wave transducer, and the laser measuring mechanism comprises a laser driving power supply, a laser emitter and a photosensitive sensor. The application also provides a fracturing fluid viscosity reduction simulation experiment method based on ultrasonic cavitation effect, which comprises the following steps: step S1, establishing the fracturing fluid viscosity reduction simulation experiment system based on ultrasonic cavitation effect, and supplying gas to the cavity to pressurize; step S2, emitting ultrasonic waves, starting the laser measuring mechanism and the infrared observation mechanism, and transmitting data to the data acquisition computer; step S3, data processing; and step S4, setting multiple groups of control experiments, which has the advantages of joint observation, novel conception, ingenious design idea and accurate experimental data.

This utility model relates to the field of wire harness processing equipment technology, and discloses a tensile testing machine for processing automotive lamp wire harnesses that is easy to fix, including a workbench (1), a clamping assembly (2) fixedly connected to the upper surface of the workbench (1), and a moving device (3) fixedly connected to the upper surface of the workbench (1). The moving device (3) is characterized in that a limiting assembly (4) is provided on the front side of the moving device (3), and the limiting assembly (4) includes a movable block (401), the movable block (401) is provided on the front side of the moving device (3), a connector (402) is fixedly connected to the bottom of the movable block (401), and an installation part (403) is fixedly connected to the bottom of the connector (402).

The utility model belongs to the technical field of petroleum engineering laboratory equipment, and discloses a portable closed quick sampling device for a rock core displacement experiment, which comprises a transparent barrel body, a liquid inlet pipe, a liquid outlet pipe, a liquid inlet pipe and a liquid outlet pipe, the micro pressure release valve is arranged at the top end of the transparent barrel body and is used for balancing internal and external pressure of the transparent barrel body; the anti-backflow quick connection structure is arranged on the outer side of the transparent barrel body and comprises a one-way valve and a quick plugging connector which are connected in sequence, the quick plugging connector is used for being directly connected with an outlet pipeline of external experimental equipment, and the drain valve is arranged at the bottom of the transparent barrel body and used for draining fluid; according to the utility model, through the arrangement of the scale and the rotatable supporting and protecting assembly, full-closed sampling is realized, volatilization, oxidation and pollution are avoided, the accuracy of experimental data is ensured, plugging and unplugging are rapid, pump closing and frequent valve operation are not needed, operation is simple and convenient, and meanwhile, a worker can perform quantitative sampling through cooperation of transparency, visibility and scales.

The utility model provides an air pressure experiment device, which comprises a device body, a buffer tube, a PLC control panel and a 24V direct current voltage module are arranged in the device body, two ends of the buffer tube are respectively provided with a to-be-experimented equipment interface tube and a compressed air interface tube, and the to-be-experimented equipment interface tube and the compressed air interface tube are integrally formed with the buffer tube. The pipe diameter of the to-be-tested equipment interface pipe and the pipe diameter of the compressed air interface pipe are smaller than the pipe diameter of the buffer pipe, the compressed air interface pipe is provided with a pressurization electromagnetic valve, the buffer pipe is connected with a pressure sensor and a pressure relief pipe, and the pressure relief pipe is connected with a pressure relief electromagnetic valve; a control display screen is installed on the surface of the device body, and the control display screen, the pressurization electromagnetic valve, the pressure relief electromagnetic valve and the pressure sensor are electrically connected with the PLC control panel. And the 24V direct-current voltage module is electrically connected with the PLC control panel. The device can be used for carrying out air pressure and air tightness experiments on air pressure experiment equipment, and has the advantages of simplicity in operation and accurate experiment data.

The invention discloses a bushing testing device based on a static pressure technology, which is applied to the technical field of bushing testing, and comprises a static pressure bearing tool assembly comprising a first X-direction static pressure guide assembly, a second X-direction static pressure guide assembly and a Y-direction static pressure guide assembly; the X-direction reciprocating loading mechanism is connected with the first X-direction static pressure guiding assembly and used for applying a reciprocating linear load in the X-axis direction to the lining pattern; the torsion loading mechanism around the X axis is connected with the second X-direction static pressure guide assembly and is used for applying a reciprocating swing torque around the X axis direction to the lining pattern; the Y-direction reciprocating loading mechanism is connected with the Y-direction static pressure guiding assembly and used for applying a reciprocating linear load in the Y-axis direction to the lining pattern; the first X-direction static pressure guiding assembly, the second X-direction static pressure guiding assembly and the Y-direction static pressure guiding assembly are all of a hydrostatic pressure supporting structure so that a liquid friction state can be formed in the loading process. In the loading process, mechanical friction interference is eliminated, and the actual loaded working condition of the bushing is truly simulated.

The underwater animal experiment system is used for solving the problem that an existing underwater animal experiment system cannot keep experimental animals at a specific water depth when being put underwater, and comprises a fixing cage, a load platform, an animal experiment support and two underwater automatic balancers; the load platform is used for fixing the fixing cage, the top of the load platform is connected with the animal experiment support, and the bottom of the load platform is connected with the two underwater automatic balancers; the end of the animal experiment support away from the load platform is provided with a load lifting ring for lifting; one of the two underwater automatic balancers is used for balancing the weight of the two ends of the load platform, and the other is used for balancing the weight of the left and right ends of the load platform; through the two underwater automatic balancers arranged at the bottom of the load platform, it is ensured that the underwater experiment system can keep balance when the underwater animal experiment system is put underwater, so that the animals fixed in the fixing cage are at a specific water depth, and accurate experimental data can be obtained.

The application provides a new pollutant sampling device and method based on fugacity theory in the earth surface-atmosphere, and belongs to the technical field of environmental monitoring test equipment. The device comprises a near-surface collection device, an atmospheric collection device, a power device, and two conveying and collecting devices. One end of one conveying and collecting device is connected with the near-surface collection device to obtain a sample in the earth surface-atmosphere when the new pollutant reaches equilibrium according to the fugacity theory, and the other end is connected with the power device. One end of the other conveying and collecting device is connected with the atmospheric collection device to obtain a new pollutant sample in the atmosphere according to the fugacity theory, and the other end is connected with the power device. The device provides a double stable low-flow active collection power to ensure that the collected gas is under the earth surface sampling cover plate during the sampling process, has sufficient residence time, reaches equilibrium, makes the measured experimental data more accurate, and can directly collect the new pollutant sample when the new pollutant reaches equilibrium between the earth surface and the atmosphere to determine the content of the new pollutant.