31results about How to "The experimental data is real" patented technology

The invention provides a multi-unit miniature modularized reactor control system experimental apparatus and an experimental method thereof, and belongs to the field of nuclear reactor control. The experimental apparatus comprises the following components: a nuclear steam supply system simulator which comprises a higher water tank, a lower water tank, a main water tank, a water pump, an inlet valve, a water outlet valve, and a pipeline; a mother pipe simulator which comprises a main pipe and several draining units; and a main control bench which comprises a data acquisition module, a signal output module, a master control computer and related lines; the invention also provides the experimental method of the experimental apparatus. The experimental apparatus in the condition with low parameter and without irradiation can simulate and analyze dynamic characteristics of the multi-unit miniature modularized reactor system, and design and verify corresponding control schemes.

The invention relates to a soil pressure balance type tunnel shield analog experiment system, a rectangular soil coelom with the upper part provided with an opening is internally provided with a shield machine model and filled with a simulated soil body, the axle wire of the shield machine model is overlapped with that of the soil coelom; the upper surface of the simulated soil body is covered with a layer of concrete cushion the upper surface of which is connected with a horizontal loading beam by more than two soil pressure jacks, the horizontal loading beam is connected with the bottom of the soil coelom by an anchor rope; and the simulated soil body is also internally embedded with a soil pressure box, a grating fiber optical sensor and a displacement meter, wherein, the soil pressurebox, the grating fiber optical sensor and the displacement meter are all electrically connected with a data acquisition and processing device. The system can simulate the influence of shield tunnel construction between subways of cities on the stratum and surrounding environment more conveniently, actually and effectively, and provide more actual and accurate experimental data for tunnel construction and design so as to guarantee the high-efficiency and safety of the shield tunnel construction of cities.

The invention discloses a uniaxial tension compression system. A hydraulic cylinder (7) is arranged just above a lower pressure head 6; a loading head (8) is arranged at the lower end of a piston of the hydraulic cylinder (7); a probe of a linear variable differential transformer (9) is downwards vertical and is contacted with the upper end of the piston of the hydraulic cylinder (7); the oil inlet of a servo valve (11) is connected with the oil outlet of a variable plunger type hydraulic pump (18); the oil return outlet of the servo valve (11) is connected with the oil return port of the variable plunger type hydraulic pump (18); a branch pipe (26) is connected to a second oil pipe (17'); the branch pipe (26) is connected with an oil nozzle (24) at the bottom of an energy accumulator shell (20); a capsule bag (22) is arranged in the energy accumulator shell (20); and the exterior of the capsule bag (22) is filled with hydraulic oil (25). According to the system disclosed by the invention, a fixture stress concentration effect is avoided, a test piece is completely in a stretched state in the test process, which is consistent with the experimental purpose, and the acquired test data is very intuitive, real and reliable.

The invention discloses a cement concrete segregation degree evaluation device and an evaluation method thereof. The device includes a support part, a test part and a density measurement part; the support part includes a base, a vertical arm, a beam, a lifting device, and a bolt; the test The components include fixing screws, a vibrating device, and a material storage chamber; the density measuring components include a column, a density meter, a slide rail, a fixing device, and a guide rail. The invention can simulate the vibration situation of cement concrete in the process of transportation and vibration, and provide more realistic experimental data. It incorporates a density measuring device, which can accurately measure the density of cement concrete in real time. The test device of the invention is easy to operate, good in economy and high in practical value.

The invention provides an experimental device and an experimental method for simulating the formation of a barrier dam to its failure. The device includes a water storage tank, a water measuring weir for injecting water into the water storage tank and measuring the flow rate upstream of the water storage tank, a main tank connected to the outlet of the water storage tank, a branch ditch laterally intersecting the main tank, and a bracket . Among them, the slope of the main groove, the slope of the branch groove, and the height of the connecting plate are adjustable, the width of the fluid channel of the main groove is adjustable, the flow rate and the height of the water surface are adjustable, so that it can more accurately simulate the conditions of different main grooves and branch grooves, and different The process of landslides blocking rivers and forming barrier dams under the source level of tributary landslides, as well as the evolution process of outburst floods, are conducive to more comprehensive acquisition of the evolution law of the disaster chain of barrier dams, the formation characteristics and the data of the water supply characteristics of the outage. Improve the scientificity and accuracy of the research on the formation process of the barrier dam and the failure mechanism of the barrier dam.

The invention provides a combined type multifunctional experiment tower and an experiment device thereof. The experiment tower is assembled by a tower kettle segment, a plate type tower segment, a filler tower segment, a condensing tower segment, an entrainment test tower segment and a plurality of closing plates. The experiment device is formed by the connection of the experiment tower, a gas bomb, a fan, a recirculation tank and a flowmeter by a conduit, a valve, and the like. The experiment device can realize the cold-hot die rectification experiment technological process by switching the valve, and the experiment technological process is very convenient to convert. The absorption and desorption experiment technological processes further can be realized by the reassembly of the tower segments and the connection between the tower device and the external equipment, so that the research field of the absorbent is widened. The experiment device is modularized in structure, convenient toinstall, and strong in experiment function, can run under the condition of the water and the electricity, can be used for performing the on-line research of the tail gas recovery in chemical factories such as the oil refinery, the coal chemical factory and the like, and can be used for treating the wastewater which is more dispersed and is small in quantity in the oil extraction factory and the like.

The invention discloses a roadbed slope retaining structural object large-scale model test loading system. The horizontal loading system is composed of a reaction wall, servo loading cylinders, loading plates, guide rods and anchor ropes. The reaction wall is embedded into a foundation, the two anchor ropes are arranged on the top of the reaction wall for reinforcement, the multiple servo loading cylinders are installed on the above-ground portion of the reaction wall, one end of each servo loading cylinder is connected with the corresponding loading plate, and the guide rods are arranged between the reaction wall and the loading plates. By means of horizontal loading, the magnitude of force transmitted to a structural object and the distribution mode of the force can be clearer. Gradation loading is achieved through a servo loading system, the real stress state of a soil body can be more accurately presented again, and more real experimental data can be conveniently obtained. The reaction wall is embedded into the soil body and reinforced by the anchor ropes, displacement is well controlled, the influence on the environment is small, and the manufacturing cost is low.

The invention relates to an atmosphere control device for nuclide migration research, which belongs to the technical field of radioactive waste treatment. There is a balance solution, and the sample stand is placed on the inner steps of the glass bottle; the sample bottle containing the experimental solution is placed in the sample slot on the upper end of the sample stand, and the bottle has a built-in platinum electrode; The sealing cover is fixedly connected; the conductor is connected to the platinum electrode through the wire; the lower end of the air inlet pipe is connected to the lower air pipe, and the other end of the lower air pipe is immersed in the equilibrium solution; the top of the material channel and the exhaust pipe are fixed in the operation pipe, and the bottom end of the material channel is immersed in the experimental solution. The atmosphere control device provided by the invention can be flexibly applied to different working scenarios, enhance the purity of the experimental atmosphere to ensure the authenticity and reliability of the experimental data, in addition, the materials are cheap and easy to obtain, and the disassembly is simple and convenient for placement.

The invention discloses a high-speed spinning cup internal flow field dynamic pressure wireless measuring device. An electromotor is connected with a rotation shaft through a coupler. The rotation shaft is connected with a spinning cup firstly through threads and then through a split pin. A gasket installation hole is formed at the upper end of inner threads in the center of the spinning cup. A trigger hole is formed at the upper end of the gasket installation hole. A wireless sensor is installed in an installation hole at the upper end of the rotation shaft. The wireless sensor abuts against the lower surface of the trigger hole through a gasket. A trigger head of the wireless sensor penetrates through the trigger hole in the spinning cup to be flush with the upper surface of the trigger hole. A receiver is placed on a test bench. The wireless sensor is connected with the receiver in a wireless mode through the Wi-Fi. According to the high-speed spinning cup internal flow field dynamic pressure wireless measuring device, a high-speed spinning cup internal flow field is directly measured through the wireless sensor, and test data are true and reliable. Due to the fact that the trigger head of the wireless sensor is flush with the upper surface of the spinning cup, the structure of the high-speed spinning cup internal flow field will not be influenced. Signals received through the receiver are analyzed, the structure and the change mechanism of the high-speed spinning cup internal flow field are searched, and a test device and a measuring method are provided for follow-up research.

A multi-functional medium-sized animal breeding isolation system relates to an isolation system for breeding medium-sized animals in a controllable microenvironment. The isolation system comprises an isolator cover body (2), a ventilating equipment unit (1), a camera system (3), a television entertainment system (4) and an automatic control system which is composed of a control box (6), a rotatable support bar (7), a touch screen (8) and an alarm indicator light (9); and a transparent plate of a front door (41) is provided with a glove and oversleeve system (58), a cage orbit and a pulley (55) which are fixed on an inside base as well as an animal cage (54). The isolation system is characterized in that: the ventilating equipment unit (1) comprises two (one operation, one standby) air exhaust fans (22) and an air intake fan (25); one side of the cover body is provided with a DPTE350alfa transfer door (42) for transferring experimental supplies or animals; and the lowest step at the bottom is provided with a DPTE270alfa transfer door (44). The medium-sized animal breeding isolation system can breed different animals infected by pathogen or clean animals, and can also realize a plurality of functions such as disinfection effect evaluation and the like.