3results about How to "The test data is real" patented technology

This invention discloses a method, system, and apparatus for differential pressure testing of industrial pipe fittings, relating to the field of industrial technology. The method includes: for each target test condition, adjusting the flow rate of the differential pressure testing system to the target flow rate value corresponding to the target test condition, adjusting the pressure to the corresponding target pressure value, and maintaining both the target flow rate value and the target pressure value within a preset fluctuation range; when the flow rate parameters and pressure parameters of the target test condition meet the preset stability judgment criteria, measuring and recording the differential pressure data of the industrial pipe fitting under test under the target test condition. By employing a closed-loop differential pressure testing system, the test medium achieves stable circulation within a closed loop. By setting multiple test conditions determined by target flow rate values ​​and target pressure values, and precisely adjusting the system flow rate and pressure to the target values ​​and maintaining them within the preset fluctuation range, the method meets the requirements for high-precision, multi-condition differential pressure performance testing of industrial pipe fittings.

The present invention provides a simulation device and method for purifying mine water by underground reservoir rock mass, the simulation device comprising: a purification module group, which comprises a plurality of purification units connected in series and parallel to each other, the purification unit comprising a plurality of purification modules assembled and connected in a modular manner, each purification module being filled with underground reservoir rock mass having a preset particle size distribution; a water storage assembly, which is connected to the inlet of the purification module group to supply the mine water to be purified; and at least one flexible connector, which is arranged between adjacent purification units so that adjacent purification units can rotate relative to each other. By using the simulation device of the present invention, it is possible to effectively increase the test purification path and shorten the test cycle, and it adopts modular assembly, is easy to install, easy to operate, effectively saves installation time, and can realize angle adjustment for a certain purification unit to simulate the purification effect of the inclined coal seam underground reservoir rock mass on mine water.

The utility model provides a car lamp mask defect detection device, which comprises a supporting mechanism, the supporting mechanism is provided with a flexible telescopic or splicable adjusting assembly, and the adjusting assembly comprises a size adjusting assembly and a height adjusting assembly. The adjusting assembly allows a user to freely adjust the opening size and height of the supporting mechanism according to actual needs; the liquid separation mechanism is arranged on the supporting mechanism and is adjusted along with the adjustment of the adjusting assembly, and testing liquid is placed in the liquid separation mechanism; the fixing mechanism is used for fixing the liquid separation mechanism on the supporting mechanism; and the temperature adjusting mechanism is connected with the liquid separating mechanism and is used for heating the test liquid in the liquid separating mechanism and controlling the temperature of the test liquid. The residual stress detection problem of environmental stress cracking of the vehicle lamp mask is solved, the flexibility of a measuring container is further improved, and the detection range of the vehicle lamp mask is expanded.