5 results about "Medium viscosity" patented technology

The application discloses a kerosene product processing equipment fault prediction and intelligent operation and maintenance system and method, relates to the technical field of petroleum chemical process monitoring and fault prediction, and comprises a multi-modal causal perception layer which is configured to collect physical parameters of multiple key nodes in a poor-quality residual oil heat exchange process in real time, wherein the physical parameters at least include inlet temperature, outlet temperature, wall surface temperature, pipe pressure drop, flow distribution ratio of each parallel branch, medium density, medium viscosity, ultrasonic echo attenuation spectrum and near-infrared spectrum characteristics. The application can accurately distinguish whether the cooling operation is caused by flow state conversion to accelerate coking and output a forced turbulent flow maintenance instruction, retain the cooling benefit while avoiding the mass transfer enhancement side effect; can identify a branch imbalance type coking and output a branch equalization cleaning instruction to reverse the vicious cycle of the more blocked, the more flow; and can capture asphaltene thermal shock nucleation signals under vapor-liquid two-phase flow and output a two-phase flow suppression instruction to eliminate the thermal shock side effect.

This invention discloses an intelligent monitoring method for the operating status of a safety valve based on wireless communication, belonging to the field of mechanical condition detection. This method includes the following steps: capturing friction signals generated by residual process media in the safety valve core in real time using an acoustic emission sensor, while simultaneously collecting millimeter-level displacement changes of the safety valve stem and dynamic valve inlet pressure; generating data every N seconds. Compared with existing technologies, the advantages of this invention are: by collecting the operating data of the safety valve, this invention specifically analyzes the friction signals generated by residual process media (such as syrup / fermentation broth). The data packet transmission strategy is primarily event-triggered, supplemented by timed reporting, ensuring that when the safety valve operates abnormally, the risk can be assessed promptly using a medium viscosity-sticking risk model, and analysis results can be obtained, without the need for periodic safety valve inspections that affect production efficiency, as required by existing technologies.

This utility model discloses a vibration protection device for a truck starting battery, relating to the field of automotive battery technology. It includes a battery box, with a mounting base fixedly installed at the bottom of the battery box. A connecting frame is fixedly connected to the bottom of the mounting base. A reset component for providing reverse reset force is provided at the bottom of the connecting frame. Multiple connecting boxes are fixedly installed at the bottom of the connecting frame, and friction components for consuming vibration energy and reducing amplitude are provided at the bottom of each connecting box. This utility model, through the adoption of a detachable wear-prone component design and a non-medium-dependent structure, allows for quick replacement of the metal plate and extrusion block in the friction component after wear, avoiding the high cost of overall replacement. The reset component is independent of the internal medium, avoiding performance degradation caused by changes in medium viscosity. Simultaneously, the distributed energy consumption of multiple components reduces the load on individual components, significantly reducing replacement frequency and vehicle maintenance costs, thus providing long-term protection for battery safety and normal vehicle operation.

The utility model relates to a kind of face non-invasive propeller assembly structure, including cylinder rear cover, cylinder main body and push rod, detachably install cylinder rear cover on the cylinder main body, push rod is slidably installed in the cylinder main body, and push rod outer end protrudes cylinder main body, air inlet ring is installed in the cylinder rear cover outside;By optimizing pressure control and gun body structure design, realize safe, accurate, portable gas propelling technology, reduce operation complexity and reduce the risk of tissue damage, adapt to different skin depth and injection medium viscosity, pressure fluctuation range≤±2%, avoid tissue damage or injection uneven caused by pressure sudden increase, built-in micro air pump and gas storage cavity integration, cancel external gas tank dependence, single hand holding operation, conform to ergonomics, applicable to fine facial operation, detachable gas storage module is convenient to replace and disinfect, break through the limitation of traditional open-loop gas pressure system, realize high-precision, low-damage gas propelling.

The application discloses a reactor combined early warning system and early warning method, comprising a temperature acquisition unit, a pressure acquisition unit, a data processing unit, an early warning unit, a pressure relief execution unit and a working condition monitoring auxiliary unit; the application has the beneficial effects that: the temperature acquisition unit adopts three high-temperature-resistant sensors distributed in the upper, middle and lower regions of the reactor, combined with a 1-10 Hz acquisition frequency and a ±0.1 DEG C acquisition accuracy, to realize comprehensive coverage and accurate capture of the internal temperature field of the reactor; the pressure acquisition unit adopts two symmetrically arranged high-precision pressure transmitters to synchronously acquire static pressure Pstatic and dynamic pressure Pdynamic; the working condition monitoring auxiliary unit supplements the acquisition of auxiliary parameters such as feed flow Q, reaction medium viscosity mu and stirring speed n, to provide multi-dimensional data support for subsequent parameter calibration and working condition adaptation, and solve the one-sidedness of early warning judgment caused by the insufficient data dimension of the prior art which only relies on a single temperature and pressure parameter.