34results about How to "Meet the test conditions" patented technology

The invention discloses an adjustable integral flat-plate quartz lamp heater structure which comprises a trolley, bearings, a flat-plate quartz lamp heating assembly, a rotatable frame and a handwheel brake disc locking device, wherein each bearing comprises a bearing pedestal and a bearing support connected with the bearing pedestal, the bearing supports are arranged on the trolley, the rotatable frame is connected to the bearing pedestals via a shaft, the flat-plate quartz lamp heating assembly is arranged in the rotatable frame, and the handwheel brake disc locking device is connected with the bearing pedestals. According to the invention, the flat-plate quartz lamp heating assembly can be switched between a vertical condition and a horizontal condition conveniently, and test conditions are met effectively.

The invention provides a scramjet tracing PLIF multi-parameter distribution measurement device and method. By constructing a combustion ramjet injection tracing PLIF multi-parameter distribution synchronous measurement device, a plurality of CCD cameras are used to obtain the simulated fuel injection conditions. The intensity ratio of the laser-induced fluorescence image obtained by the tracer PLIF image and the intensity calibration of the constant temperature and variable pressure image I 1 / I 2 with pressure P Relationship f ( P ), the ratio of laser-induced fluorescence image intensity obtained by image intensity calibration at constant pressure and temperature I 3 / I 4 with temperature T Relationship f ( T ), the image intensity of the laser-induced fluorescence image obtained by the image intensity calibration of the constant pressure, constant temperature and variable component concentration I 5 and the concentration of the tracer substance in the cavity n Relationship f ( n ), the quantitative distribution results of the injection fuel concentration, pressure and temperature field of the scramjet can be obtained directly. The invention can realize the synchronous measurement of components, pressure and temperature fields in the scramjet engine.

The invention provides a lightning impulse testing circuit and a lightning impulse testing method used for a capacitive composite insulation busbar system. The lightning impulse testing circuit comprises an impulse voltage source, an impulse voltage measuring device, a low pass filtering device, and a tested capacitive composite insulation busbar system. One end of the impulse voltage source is connected with the low pass filtering device, and the other end of which is connected with the high voltage end of the impulse voltage measuring device and the high voltage end of the tested capacitive composite insulation busbar system. The other end of the impulse voltage source is connected with the low voltage end of the impulse voltage measuring device and the low voltage end of the tested capacitive composite insulation busbar system, and is grounded. The low pass filtering device is formed by parallely connecting a capacitor Cp with a resistor Rp. The testing circuit is simple in layout, and the determining of the parameters of the circuit is convenient, and is easy to realize. The testing method satisfies testing requirements of nominal capacitance 5000pF and below capacitive composite insulation busbar lightning impulse tests, and completely satisfies requirements of a GB / T16927.1-2011 standard and a GB / T 22838.-2008 standard on lightning impulse experiment waveform parameters.

The invention discloses an air film drag reduction physical simulation test device and a test method thereof, belonging to the field of fluid resistance measurement, including a water supply / air system, a water / wind tunnel system and a force measurement system. The water / air system adopts the combination of high-pressure air storage tank and high-pressure water storage tank; the middle experimental section of the water / wind tunnel system is fixed on the mounting frame through the front and rear supports; The cylinder of the experimental section extends through the first linear bearing arranged on the cover plate, and the rear end passes through the force-measuring male tooth to the force-measuring female tooth at the front end of the dynamometer. The test model interacts with the fluid and is hindered, the force generated by the fluid pushes the test model, and the dowel rod transmits the force received by the test model to the dynamometer, and the resistance data of the test model is measured. The device has simple and compact structure, easy operation, low cost, stable and reliable testing, convenient replacement of experimental models, and overcomes the shortcomings of long preparation period and large investment for water / wind tunnel experiments.

The invention relates to the technical field of testing the combustion performance of various hydrocarbon gas mixed with air, in particular to a combustion performance test system and a method thereof. The test system includes a mixed hydrocarbon circuit, an air circuit, a thermal cycle circuit and test pipelines, and the mixed hydrocarbon circuit, air circuit, thermal cycle circuit and test pipelines are all equipped with tests for flow measurement, temperature measurement and pressure measurement. unit. This test system can provide a complete hardware test platform for the influence of various influencing factors in the process of mixed air gas gas production process on the combustion performance of mixed gas under single or multiple effects, and finally provide accurate data support for the development of various hydrocarbon mixed air gas devices Another object of the present invention is to provide a test method based on the above-mentioned air-mixed gas combustion performance test system to ensure test efficiency.

The invention discloses a water-water / water-glycol type water source heat pump assembly performance testing device. The w water-water / water-glycol type water source heat pump assembly performance testing device is of a pipe water mixing / dividing wall heat exchanging structural design and comprises a cooling water system, a coolant water system, a pipe water mixing / dividing wall heat exchanging system, a heat dissipation system and a glycol solution storage system. According to the water-water / water-glycol type water source heat pump assembly performance testing device, test determination and calculation on main tests on the coolant water side is performed through liquid coolant; test determination and calculation on verification tests on the cooling water side is performed through an assembly heat balancing method, so that the performance parameters such as the refrigerating capacity, the refrigerating power consumption and the refrigerating energy efficiency ratio and the important technical parameters such as temperature and flow of the water-water / water-glycol type water source heat pump assembly can be measured accurately, and importable means can be provided for performance testing and development research of the water-water / water-glycol type water source heat pump assembly. The water-water / water-glycol type water source heat pump assembly performance testing device has the advantages of being energy-saving in operation, accurate in testing results and capable of achieving all-weather all-condition testing.

The invention provides a test device used for a water pipe connector and an implementation method thereof. The test device comprises a test connector, a test bed, a tension bar installed on the test bed, a water machine system for providing water pressure for the test connector, a dynamometer, a pressure meter and a thermometer, wherein the water machine system and the test connector form a water circulating system; the pressure meter and the thermometer are used for displaying monitoring data; the tension bar is used for detecting the pressure endurance capability of the test connector; and the pressure endurance capability is displayed by the dynamometer. The test device has the following beneficial effects that: the test device can test such performances of the pipe connector as pressure endurance, drawing endurance and heat cycle and can test a certain performance of the connector or simultaneously test several performances jointly; the test parameters can be independently controlled by the component parts and can satisfy the test conditions in a short time; and the device is simple and convenient to operate and flexible and reliable to control, can completely satisfy test of various performances of the connector, solves the problems of the existing test devices and provides test ways for wide application of the water pipe connector.

The invention provides a vertical submersed motor performance test platform, which comprises a supporting vertical column, a load motor mounting plate, a tester mounting plate, a tested motor mounting plate and a liquid nitrogen pool, wherein the supporting vertical column is fixed at one side of the liquid nitrogen pool; and the load motor mounting plate, the tester mounting plate and the tested motor mounting plate are fixed on the supporting vertical column sequentially from top to bottom. The vertical submersed motor performance test platform has the beneficial effects that defects of poor flexibility, low accuracy, serious resource waste, poor safety and the like existing in the traditional test method can be effectively overcome.

The invention belongs to the technical field of building and provides a gridding-cloth alkali-resistant curing box. The gridding-cloth alkali-resistant curing box comprises a box body with a polyurethane thermal insulation layer and a box cover. A plurality of stainless-steel sample partitions with square holes are arranged in the box body. Each sample cage is separated into a plurality of layers, and each layer is provided with a pored partition with a rail. Heating pipes and a circulation pump with the circulation manner being entering from the bottom and discharging from the top are arranged below the box body. Copper refrigerating coils are arranged on two sides of the box body and are in close contact with the inner container of the box body. A protecting cover and the polyurethane thermal insulation layer are arranged outside the coils. A temperature and alkali concentration sensor which digitally displays the temperature and alkali concentration is further arranged in the box body and connected with an intelligent digital-display instrument. The box body is provided with a sound-light alarm device connected with the intelligent instrument. The gridding-cloth alkali-resistant curing box is simple to operate, high in work efficiency, high in control precision and capable of reaching the test condition completely satisfying the standard requirement.