33results about How to "Judging the service life" patented technology

The invention provides a detection system and method for the service life of a membrane module, which belong to the technical field of micro-filtration or ultra-filtration. The system comprises a water inlet tank, a water inlet pump, a water inlet solenoid valve, a water outlet solenoid valve, a pressure gage, a heating unit and a control unit. The method disclosed by the invention comprises the following steps of: firstly, connecting the membrane module into the detection system; heating water in the water tank; opening the water inlet solenoid valve and closing the water outlet solenoid valve to ensure that impact pressure in the membrane module reaches specified pressure, and keeping the pressure in regulated time; then, opening the water outlet solenoid valve and closing the water inlet solenoid valve; rapidly discharging water and leaking pressure to zero; returning outlet water back to the water inlet tank; and circularly and alternatively carrying out pressure keeping operation and pressure leaking operation, wherein the cycle period is at least 100000 times. According to the detection system and method disclosed by the invention, a stressing condition of the membrane module under circulating impacting acting force in an application operation process can be simulated through alternative circulation of pressure keeping and pressure leaking periods of the impact pressure, and the sealing effect of a glue sealing end face of the membrane module is effectively evaluated, so that the service life of the membrane module is judged.

The present invention relates to a hinge bearing and testing equipment, comprising a first bracket mechanism; a rotating mechanism, which is rotationally connected with the bracket mechanism; a connecting shaft, which is drivingly connected with the rotating mechanism, and one end of the connecting shaft is It is fixedly connected with one end of the measured object; the rotation axis of the connecting shaft is perpendicular to the rotation axis of the rotating mechanism. When testing, the object under test bends downward, driving the connecting shaft to tilt downward to automatically adjust the angle, which can reduce the abnormal stress concentration at the connecting end of the object under test and the connecting shaft, and avoid affecting the test effect of the whole set of testing equipment.

The invention relates to a hydraulic system and alternating stress fatigue testing equipment, which includes a hydraulic oil tank for storing oil required by the hydraulic system; a first power system, whose input end communicates with the hydraulic oil tank, and the first power system includes a second An output branch and a second output branch, the first output branch communicates with the first oil cylinder mechanism of the deflection loading device, so that the first oil cylinder mechanism drives the measured object clamped by the deflection loading device to drop to the target position; the second The output branch communicates with the first motor mechanism of the deflection loading device, so that the first motor mechanism can lock the object to be measured after it is lowered to the target position; the second power system, its input end communicates with the hydraulic oil tank, and the second power system includes The third output branch, the fourth output branch, the fifth output branch and the sixth output branch; the circuit system, which is respectively connected with the first oil cylinder mechanism, the first motor mechanism, the fourth motor mechanism, the third motor mechanism, The return oil path of the second oil cylinder mechanism and the second motor mechanism is communicated.

The invention relates to a deflection loading device and testing equipment, including a supporting mechanism; a loading connection mechanism connected to the supporting mechanism for rotating and clamping the object to be measured, and the loading connection mechanism slides to the first position relative to the supporting mechanism. When in a first position, the object under test is bent to a target degree; a first driving mechanism, which is connected with the loading connection mechanism, is used to drive the loading connection mechanism to slide relative to the support mechanism. When the first driving mechanism drives the loading connection mechanism to slide to the first position relative to the support mechanism, the measured object is bent to the target degree, that is, a certain bending angle is formed, and the function of simulating the bottom-hole bending condition is realized.

The invention discloses a filtering device with automatic detection structure, which comprises a filter cylinder provided with an opening end, a filter cylinder cover that is matched with the liquid in a sealing way, and a filter core arranged in the filter cylinder, wherein the filter core, the filter cylinder cover and the filter cylinder are matched with each other to form a water inlet chamber and a filtering chamber; the filter cylinder cover is provided with a water inlet hole communicated with the water inlet chamber, and a water outlet hole communicated with the filtering chamber; thetop of the filter cylinder cover is provided with a first plunger piston cavity communicated with the water inlet chamber, and a second plunger piston cavity communicated with the filtering chamber; the first plunger piston cavity is sealed by liquid and is assembled with a first plunger piston capable of moving up and down, and the second plunger piston cavity is correspondingly assembled with asecond plunger piston; and the first plunger piston and the second plunger piston are touched and matched with a lever taking a rotating shaft as a supporting point, and can drive the lever to trigger a microswitch for converting a pressure signal into an alarm signal. The invention can be used for detecting the working state of the filter core in real time and accurately judging the blocking situation of the filter core, and has the characteristics of stable working performance, simple structure, sensitive action and the like.