38 results about "Nuclear test" patented technology

This invention relates to one human intestinal canal virus fluorescence meter test technique in the field of virus nuclear test technique, which adopts common upstream object, common downstream object and common fluorescence detector for EV each hypotype, wherein, the detector 5'end is labeled with fluorescence emission base group 6- carboxyl fluorandiol and 3'labeled fluorescence quencher base group and 6-carboxyl tetramethyl rhodamine. Due to the test agent case, it tests each EV hypotype standard blood serum for online test and to get each parameter as the following: abnormal property for 100 percent; sensitivity for 95 percent, repetitiveness CV less than 10 percent and minimum content of EV as 500 copy each ml.

The invention discloses a multi-band measuring method for an actual ship underwater explosion strong impact environment. High bands over 20Hz are measured by an acceleration transducer additionally provided with a filter, and a shock spectrum base curve is obtained; medium bands between 5Hz and 20Hz are measured by an electrometric reed instrument; low bands below 5Hz are measured by a low-frequency vibrator; and obtained correction value points of the medium bands and the low bands are used for correcting the shock spectrum base curve, so that a shock spectrum correction curve is obtained finally. The method can be used for actual ship explosion test measurement of surface vessels and submarines, and also can be applied to underwater explosion test impact environment measurement of laboratory models; and moreover, by the correction method, impact environment data and safety and damage radiuses of vessel systems, equipment and personnel can be accurately and reliably obtained, and reliable test bases can be provided for formulating, supplementing and modifying shock resistance design of the vessels and for examining and testing relevant military standards.

The invention discloses a correction calculation method for an energy saving amount assessment test of a low-temperature economizer system. The correction calculation method comprises the steps: a, conducting performance tests under the working conditions of low-temperature economizer input and output according to ASME PTC6-2004 Steam Turbine Performance Test Regulations; b, calculating the actually measured heat consumption rate HRt of the steam turbine under the two working conditions; c, correcting the inlet flue gas temperature T7, the flue gas flow Mg, the flue gas specific heat capacityCg, the water supply main pipe flow F3 and the water supply main pipe temperature T3 by adding additional sub-loop iteration in the first type of correction calculation under the input working condition of the low-temperature economizer; d, carrying out second-class correction calculation to obtain the corrected heat consumption rate of the steam turbine under the two working conditions; and f, calculating the corrected heat consumption rate difference value under the two working conditions to obtain the energy-saving effect of the low-temperature economizer. According to the correction calculation method, the operation boundary condition of the low-temperature economizer can be corrected to a design value in the energy-saving amount assessment test of the low-temperature economizer system, so that the bifurcation or dispute of buyers and sellers to the energy-saving amount acceptance test result of the low-temperature economizer is avoided.

The invention provides a recovery enthalpy calibration test piece and a wind tunnel thermal assessment test method. The method comprises the following steps: designing the recovery enthalpy calibration test piece and acquiring a back temperature change curve of a concerned part of the test piece; acquiring a change curve of hot-wall heat flow on the surface of the test piece along with wall enthalpy, and acquiring a hot-wall heat flow calculation formula through linear fitting; acquiring an enthalpy drop influence quantity delta H, which satisfies the equation that H=H-h<r>, caused by water cooling and heat absorption of a spray pipe according to a difference between the actual recovery enthalpy of the surface of the test piece and the designed surface recovery enthalpy H; acquiring a newtest enthalpy value newH, which satisfies the equation that newH=2H-h<r>; and adjusting the total enthalpy of airflow at the inlet of the spray pipe to a new test enthalpy value newH, and carrying outa wind tunnel heating test to ensure that the actual recovery enthalpy of the surface of the assessed piece reaches a design state. The enthalpy drop influence quantity caused by water cooling and heat absorption of the spray pipe is evaluated through the test piece, and the test state of formal assessment is designed according to the enthalpy drop influence quantity, so a thermal protection system of an aircraft is assessed truly and effectively.

The invention discloses a temperature-centrifugation composite environment assessment test device and a test method. The test device comprises a centrifuge test system, a thermal loading unit and a data monitoring processing unit; the centrifuge test system comprises a centrifuge and a fairing; and the thermal loading unit is integrally mounted at the far end of a big arm of the centrifuge, the fairing is mounted outside the thermal loading unit in a sleeving manner, a vacuum environment is arranged inside the fairing, and a test piece is arranged in the thermal loading unit. According to thedevice and the method, vacuum, high temperature, centrifugal load and load history under action scenes such as space isotope heat source product ground emission, space attitude adjustment, space detection, landing and the like can be accurately simulated; a complete data testing system is arranged, multiple parameters such as the temperature, the strain, the vacuum degree and the product state canbe detected in an integrated mode in the testing process, and the product response situation of a tested product under the temperature-centrifugation composite environment can be accurately obtained.

The invention relates to a specific region earthquake event alarm method. The method includes, at first, selecting an appropriate alarm array within a given time period and a specific area; reading the real-time data of each substation of the alarm array, and performing the real-time F-K calculation to obtain the azimuth and slowness result of the maximum energy signal in the data; and clustering the alarm array data to obtain the clustering channel result according to the obtained azimuth and slowness calculation result, comparing the calculated azimuth, slowness and signal detection results with pre-set thresholds, and performing event alarm on the eligible signals. The flow is concise, the computational complexity is less, and the method is easy to implement. The method solves the technical problem of array data processing for specific region nuclear explosion earthquake event alarm, further completes the monitoring capability of specific region nuclear explosion events, and has an important meaning in overseas underground nuclear test inspection.

The invention discloses a valve load test system. The test system comprises a working pump, a test main pipeline and test branch pipelines; an inlet of the main pipeline is connected with the workingpump; inlets and outlets of the test branch pipelines are respectively connected with the test main pipeline through connecting pipelines, and valves are mounted on the connecting pipelines; an inletof each test branch pipeline is further connected with a ball serving pipeline, and an outlet of the test branch pipeline is further connected with a ball receiving pipeline; and switchable mechanismsare installed at the inlet of each ball serving pipeline and the outlet of each ball receiving pipeline. According to the test system, a pressure source module, the main test pipeline and the test branch pipelines are designed, and various loads of the valve can be flexibly tested; and by adopting the test system provided by the invention, assessment tests of safety valves such as a switch valve,a regulating valve and a water hammer pressure release valve and various oil pipeline valves such as a pigging ball valve under different working conditions can be completed.

The invention discloses a mechanically-sealing four-coaxial cable termination technology. The technology is characterized by comprising the steps of 1) preparation of termination; 2) processing a spiral copper armored casing; 3) welding a cable sealing support; 4) inspecting the appearance after welding; 5) leak detection; 6) preparation of a three-coaxial cable joint; 7) inspecting the size of the completed three-coaxial cable joint; and 8) installing a sealing device. According to the invention, the defect that the first pass yield of the coaxial cable of a nuclear power station is low traditionally is overcome, the first pass yield can reach 100% according to verification in the San Men nuclear power station AP1000, a lot of materials and labor force can be saved, the joint is more stable and safer in operation due to advancement of the technology, and a test channel of an out-of-core nuclear test system can be used for 60 years, which is 20 yeas more than that of traditional products of the same kind, under severe environments of high temperature, high humidity and high irradiation.

A device for plasma efficient transport of nuclear fusion experimental equipment is disclosed and comprises an ion source device and a magnetic field coil device on a nuclear fusion experimental equipment body. The device for plasma efficient transport consists of an ion source device mounting plate, a vacuum chamber, observation windows, a fixed platform, a vacuum pump group and a vacuum pipeline; the vacuum chamber is installed on an upper part of the fixed platform, the vacuum pump group is connected to a left end of the vacuum chamber through the pipeline, the ion source equipment mountingplate is installed in the middle part of a right end of the vacuum chamber, the ion source device is installed on a right end of the ion source equipment mounting plate, a plurality of observation windows are arranged, each observation window consists of a pipeline and an observation plate, the observation plate is made of transparent material, the observation plate is installed on the upper partof the pipeline, pipes of the plurality of observation windows are respectively installed on a plurality of openings around an outer part of the vacuum chamber, and a plurality of magnetic field coildevices are respectively mounted around the outer part of the vacuum chamber. The device for plasma efficient transport disclosed in the invention helps overcome the shortcomings of conventional nuclear test equipment which is low in plasma beam density and ionization rate and incapable of meeting the requirements for processing fusion materials.

The invention discloses a self-heating device thermal shock water entry accident scene simulation test device and test method, which can complete various test types such as a thermal shock test, a thermal shock water entry test, a seawater simulation test, a seabed long-term storage state environment adaptability assessment test, a seabed vibration environment adaptability assessment test and thelike. The experiment types can comprehensively simulate various accident environment loads of the self-heating device in launching and falling accident scenes, an analysis tool can be provided for product state response of the self-heating device from a dynamic scene to a deep sea storage scene, and technical support is provided for accident environment adaptability evaluation, improved design andthe like of products. The test piece launching device is used for simulating a scene when the test piece falls into seawater, can simulate the water entry angle of the test piece and can also simulate the water entry speed of the test piece, and compared with the traditional technology, the scene simulation is more real, and the detail consideration is richer.

The invention discloses a novel nano temperature testing material preparation method. By using a hydrothermal method, a precursor material is synthesized by using a high-temperature reaction kettle, and by adjusting concentrations of different excitants, a material with different temperature responses is prepared in an inert and reduction atmosphere in an atmosphere reaction furnace, and the material emits orange red light of which the wavelength is 600-680nm under excitation of a light source of 200-400nm; by virtue of properties of different types of the excitants and response efficiency of different concentrations, a nano material with two properties that light emission efficiency is degraded and improved along with increase of temperatures is prepared, and synthesis of the material with controllable material granularities within 100-500nm is achieved; by using a spraying and printing process, the material is smeared to the surface of an article, and change of temperatures inside and outside the article can be achieved by detecting the light emission efficiency of the material; and in the field of wind tunnel testing, stress data of different parts can be rapidly and accurately acquired, and meanwhile, the material has optimal application prospects in special fields such as oil well exploration and nuclear test leakage detection.

The invention discloses a test piece for realizing a biaxial stress state through uniaxial loading of a spherical working section. The test piece is integrally of a plate-shaped structure, the middlepart is a working section, the left and right sides are clamping sections, the working section is of a rhombic structure, and the two sides of two diagonal lines are partially symmetrical. Spherical recesses and special-shaped holes are designed in the working section; the spherical recesses are designed on the front and back surfaces of the working section and are positioned in the center of theworking section; the number of the special-shaped holes is four, and the four special-shaped holes are formed in the four parts, equally divided by the two angular bisectors, of the working section respectively. Loading of the test piece is achieved through a uniaxial fatigue testing machine, under the designed spherical recesses and special-shaped holes, a multi-axial stress state of stretching in the horizontal direction and compressing in the vertical direction is finally generated in the center of the whole test piece, and a typical tension/compression multi-axial stress state is formed. According to the invention, simulation of the tension and pressure biaxial state of the disc center of a turbine disc can be realized, part-level assessment tests can be partially replaced, the structural design period is shortened, and the test cost is saved.

The invention relates to the field of aero-engines, in particular to a testing machine and method for evaluating the wear life of a graphite sealing material. A high-speed ring block abrasion testing machine and a PV acceleration testing method are adopted, and the problems that in the prior art, the sliding linear speed of a friction pair is insufficient, loading and lubricating modes are inconsistent with actual working conditions, and the graphite sealing material wear life evaluation period is long are solved. The testing machine comprises a rotating main shaft, a rotating disc, a precise loading feeding table, an oil way lubricating system, a data acquisition system, a computer and the like, a PV value acceleration method is adopted, the PV value of a friction pair is increased by increasing the load and the linear speed in the testing process, and accelerated abrasion testing on the wear life of the graphite sealing material to be tested is achieved. The testing machine can realize high linear speed, radial fixed loading and oil lubrication states required by the graphite sealing pair. The test adopts the PV accelerated test method, is particularly suitable for accelerated examination of long service life of sealing materials such as graphite, can effectively shorten the time required by the service life test, and has economic benefits.

The invention discloses a method for calculating the final examination heat consumption rate after turbine through-flow transformation, and the method comprises the steps: A, calculating the THA working condition heat consumption rate x after turbine through-flow transformation, selecting the weight of the heat consumption rate as 0.2, and entering the step B; B, calculating the 75% THA working condition heat consumption rate y after turbine through-flow transformation, selecting the weight of the heat consumption rate to be 0.5, and entering the step C; C, calculating the 50% THA working condition heat consumption rate z of the turbine after through-flow transformation, selecting the weight of the heat consumption rate as 0.3, and entering the step D; D, calculating a final assessment heat consumption rate HRfinal according to a formula provided by the invention, and entering the step E; E, comparing the final assessment heat consumption rate HRfinal with the turbine through-flow transformation heat consumption rate guarantee value HRguarantee value to obtain a final assessment heat consumption rate evaluation result after final turbine through-flow transformation. The method provided by the invention is completely different from a previous performance assessment test in which only 100% THA working condition heat consumption rate is used as a final assessment index. Accordingto the invention, the user experience of performance test work is effectively improved.

The invention belongs to the field of nuclear fuel post treatment, and particularly relates to a nuclear test specimen automatic separation device. The device comprises a mechanical arm separation module, a pump module and a control system module, wherein the pump module is connected to the mechanical arm separation module and is used for reagent addition by the mechanical arm separation module and the sampling by a sampling pin; the control system module is connected to the mechanical arm separation module and the pump module, and is used for controlling the automatic operation of the pump module and a mechanical arm platform, so that the space used in a glove box is reduced; the repair and the maintenance are convenient; the flowing time of reagents and test specimens is reduced; the liquid taking precision is improved; the separation time is shortened; the efficiency is improved; the secondary sample carrying separation function after the primary eluant dilution is realized.

The invention discloses an examination test device and method for an ultrahigh-temperature and high-pressure stop valve. According to the test device, a stop valve test piece consistent with an actualultrahigh-temperature and high-pressure stop valve in characteristic is designed; an oxygen-enriched combustor, an adjustable spray pipe, a rectification measuring pipe, an exhaust pressure supplementing spray pipe, a temperature measuring point and a pressure measuring point are matched with one another to examine the stop valve test piece under a high-temperature and low-pressure working condition, a high-temperature and high-pressure and high-temperature and low-pressure switching working condition and a high-temperature and high-pressure working condition; the oxidation resistance, thermal protection reliability, high-temperature and high-pressure sealing and opening and closing response characteristics of the high-temperature and high-pressure stop valve under different thermal loadtypes are effectively simulated.