7results about How to "Reduce operating losses" patented technology

This invention discloses an axial permanent magnet levitation magnetic drive pump, comprising a pressure-bearing component consisting of a pump body, a pump cover, and an isolation sleeve. The pump shaft is housed within the pressure-bearing component, and a sliding bearing supporting the pump shaft is located within the pump cover. An impeller and an inner magnetic rotor are connected to both ends of the pump shaft, respectively. An outer magnetic rotor, corresponding to the inner magnetic rotor, is connected to one end of a drive shaft. The other end of the drive shaft is connected to a matching motor. An isolation sleeve is provided between the inner and outer magnetic rotors. An axial permanent magnet levitation bearing is located within the pressure chamber. The axial permanent magnet levitation bearing includes a static magnetic component and a moving magnetic component. The static magnetic component includes multiple annular static magnetic rings arranged axially and a static magnetic encapsulation sleeve covering their surface. The moving magnetic component includes multiple annular moving magnetic rings arranged axially and a moving magnetic encapsulation sleeve covering their surface. This invention, through magnetic coupling of a special magnetic circuit, withstands the axial forces generated by impeller hydraulics and rotor self-weight, thereby improving the long-term stability of the magnetic drive pump operation.

The invention belongs to the field of inventory prediction and optimization, and provides a dynamic disturbance perception inventory optimization method and system based on supply chain digital twinning, and the method comprises the steps: obtaining the full-link node data of a power grid supply chain, and extracting features; the method comprises the following steps: constructing a three-dimensional twin model of a power grid supply chain, considering scene features of the power grid supply chain, constructing disturbance factors, classifying unstructured disturbance factors and structured disturbance factors, fusing, and training a hybrid prediction optimization model according to the fused features in combination with power grid inventory management requirements in a power scene. Optimizing parameter configuration of the model; and processing the inventory data of the target area in the target scene by using the trained hybrid prediction optimization model, and determining a replenishment scheme. The inventory optimization accuracy can be improved, and the method is particularly suitable for electric power scenes.

The application discloses a kind of fusion highway accident rescue control method and system of road cooperation and double mode traffic flow, first to the unified configuration of accident scene parameter and obtain the configured accident scene parameter, then the configured accident scene parameter is verified and generates scene initialization instruction set, then based on scene initialization instruction set, road network is abstracted as directed graph and initializes lane set and section set;The application realizes the function of accurately controlling the process of highway accident rescue by adopting the way of fusion road cooperation and double mode traffic flow, not only improves the scientific level of accident rescue and traffic control, but also produces multidimensional benefits in different groups and application fields, and through the implementation of multi-scheme deduction and quantitative evaluation before accident disposal, the rescue path and lane control strategy can be optimized, the response time is shortened, the congestion diffusion risk is reduced, and the emergency management efficiency and decision-making scientificity are significantly improved.

This invention provides an on-site adjustment device, method, and application for arching deformation of high-speed railway subgrades. The device includes miniature steel pipe piles, displacement sensors, axial force sensors, a data acquisition instrument, a crimping adapter, pre-tightening nuts, elastic components, and a support plate. This invention treats the high-speed railway subgrade as an anchor plate resisting arching deformation of the foundation rock and soil, and the miniature steel pipe piles as anchor rods. The anchor rods are anchored above the anchor plate using a pre-tightening device. The arching deformation and axial pre-tightening force are collected by sensors and a data acquisition instrument. Based on the monitoring data, the pre-tightening nuts are adjusted on-site, thereby controlling the arching deformation of the high-speed railway subgrade caused by expansive rock within an allowable range. Compared with existing technologies, this invention features simple operation, high accuracy, strong safety, and low cost. It provides a new approach and means to solve the problem of arching deformation of high-speed railway subgrades in expansive rock strata areas, and has significant engineering application value.

The application discloses a nuclear power plant fault diagnosis and maintenance decision-making method combining transfer learning and expert experience, relates to the technical fields of nuclear power plant operation and maintenance, equipment monitoring and fault diagnosis, and comprises the following steps: collecting equipment fault simulation data, unit operation data and expert maintenance experience data, constructing a transfer learning model after feature extraction and normalization processing; training a feature extractor and a label classifier based on the simulation data, reducing the feature distribution difference between the source domain and the target domain through domain adversarial adaptation, and fine-tuning the model in combination with actual data to improve the verification accuracy; building an expert knowledge base, using the model to diagnose actual data and calculating the confidence, automatically triggering the knowledge base maintenance scheme matching or manual review process; dynamically updating the knowledge base in combination with the review result and new cases, encapsulating the model into an API and integrating it into the existing monitoring platform of the nuclear power plant to realize real-time data access, diagnosis result output and function testing, and the application improves the fault diagnosis efficiency and the scientific nature of the maintenance decision-making.

The invention discloses a dumper power assembly redundant suspension protection device, a monitoring system and a graded early warning control method.The dumper power assembly redundant suspension protection device comprises at least one redundant suspension assembly, and the redundant suspension assemblies are correspondingly installed on an engine and / or a gearbox and are arranged close to an engine suspension and / or a gearbox suspension; an original suspension fixing hole position of an engine or a gearbox is not shared, and the protection device is used for providing protection when engine suspension and / or gearbox suspension are / is overloaded or failed; the redundant suspension assembly comprises a redundant supporting leg, a redundant shock absorber, an adjusting gasket and an adjusting washer. The redundant suspension assembly does not intervene in work when the vehicle runs normally, interference to original adjustment parameters of the power assembly suspension is avoided fundamentally, it is ensured that the NVH performance of the vehicle is kept at the original level, and both upgrading practicability and driving and riding comfort are considered.

The invention discloses a low-voltage electricity supplement control system and method based on new energy commercial vehicle fleet management, and relates to the field of vehicle management, and the system comprises a cloud scheduling platform which is used for setting an electricity supplement strategy, receiving a vehicle signal, judging an electricity supplement state, issuing an electricity supplement starting / stopping instruction, collecting electricity supplement data, and generating a report; the vehicle TBOX is used for receiving a cloud charging strategy, collecting a vehicle related signal, uploading the vehicle related signal to the cloud, forwarding a cloud instruction to the HCU controller, feeding back a charging state and executing an offline charging strategy; the HCU controller is used for receiving the charging instruction forwarded by the TBOX, controlling the DCDC converter to be powered on / powered off, monitoring the charging state and feeding back the charging state to the TBOX; the DCDC converter is used for converting high-voltage electricity of the power battery into low-voltage electricity and supplementing electricity to the low-voltage storage battery; and the mobile phone APP is used for receiving the power supply state push, displaying the power supply progress, issuing a manual power supply instruction and receiving a fault prompt.