6 results about "Experimental Devices" patented technology

The invention relates to an experiment device for evaporating scaling risks of a water production gas well shaft and a method. The experiment device comprises a shaft simulation and heat-preservationsystem and a fluid injection and collection system, wherein the shaft simulation and heat-preservation system is used for simulating a shaft in a stratum, used for providing a flowing channel for gas-water two-phase fluids, and used for keeping the shaft at a stratum temperature; the fluid injection and collection system is used for injecting water and gases into the stratum and used for collecting produced stratum water. By adopting the experiment device, gas-water two-phase flowing in the shaft and a dynamic scaling process of stratum water under different gas-water ratio conditions in the shaft can be simulated, scale amounts on the wall of a metallic tube can be tested in different sections, the morphology of scaling can be observed, blocking situations can be judged, the scale amountsand the scale layer thickness cross sections along the wall of the metallic tube can be drawn, total scale amounts, adhesion scale amounts, parts retained in the metallic tube, of unattached scale, and stratum water production parts of unattached scale can be tested, and allocation ratios of scale substances of different modes in the shaft can be analyzed; by adopting the experiment device, not only scaling and blocking risks in the shaft, but also anti-scaling effects of an anti-scaling agent, can be evaluated; the experiment device is simple in equipment, convenient to operate and high in feasibility.

The invention discloses a microwave excitation coal-bed gas desorption and seepage experimental device, and belongs to coal-bed gas desorption and seepage experimental devices. The microwave excitation coal-bed gas desorption and seepage experimental device comprises a tri-axial pressure device and a microwave generating device. The tri-axial pressure device comprises an upper gland, a lower gland, a barrel, a piston, a barrier, an upper pressure head and a lower pressure head, the microwave generating device comprises a microwave antenna, a waveguide tube, a resonant cavity, a magnetron and a controller, the upper gland and the lower gland are respectively arranged on the upper portion and the lower portion of the barrel, the piston is arranged inside the lower gland, the barrier is fixed onto the inner side wall of the lower gland, the lower pressure head is arranged inside the lower gland, and the microwave antenna is arranged on the inner side wall of the barrel; the upper pressure head is arranged in the barrel, and the waveguide tube, the resonant cavity, the magnetron and the controller are arranged on the outside of the barrel. The microwave excitation coal-bed gas desorption and seepage experimental device has the advantages that desorption and seepage functional tests can be carried out on coal, desorption and seepage laws of the coal under a microwave effect can be acquired, and reliable data can be provided for reasonably draining and comprehensively utilizing coal-bed gas resources.

The invention discloses a magnetic force excitation bolt joint vibration failure experiment device and a test method. The experiment device comprises a supporting base, a vibration excitation device, a test device and an acquisition and analysis device. The excitation device can drive a movable magnet to operate by a driving motor and generate periodic magnetic force to act on the bolt to be tested so as to enable the bolt joint to generate vibration failure; a displacement sensor, an acceleration sensor and a strain sensor on the testing device can respectively obtain three response signals of displacement, acceleration and strain of the bolt joint; and the acquisition and analysis device can be used for researching various failure conditions such as thread looseness of the bolt joint, slippage and vibration fatigue of a connected piece and the like by analyzing the obtained response signals. Various kinds of vibration excitation in engineering are effectively simulated through reasonable design, the diversity of experiments is increased by accurately controlling various variables, vibration failure experiment effects of different connection modes are compared, and the method has important value in research on the aspects of bolt joint vibration failure dynamics reliability and the like.

The invention belongs to the technical field of hydrodynamics experiments of ship model experimental tanks, and particularly relates to a forced six-degree-of-freedom motion instrument. The forced six-degree-of-freedom motion instrument includes an experimental machine frame, a pitching-rolling connecting rod and a torque servo motor driving device; forced six-degree-of-freedom of a ship model simulates a passive seakeeping experimental device to do a seakeeping experiment of a six-degree-of-freedom ship model motion state, the seakeeping experiment correspondingly includes pitching, rolling,heaving, yawing, surging and swaying, and through the measurement modes, a six-dimensional hydrodynamic coefficient matrix is obtained; and hydrodynamic coefficients of the ship model, such as additional mass and drag coefficients during ship model motion, are analyzed and calculated to further predict the motion of a ship in waves. According to the forced six-degree-of-freedom motion instrument,the sinusoidal linear velocity is generated through an eccentric wheel, thus the contact strength and the motion stability of a mechanism are increased; and the six-degree-of-freedom motion instrumenthas the advantages of a compact and reasonable structure, convenient operation, high test efficiency, comprehensiveness, economical efficiency and the like, and the application prospects are wide.