11results about How to "Reduce operating losses" patented technology

The invention discloses a boiler inner wall crack detection method based on a laser ultrasonic wave and infrared thermal imaging technology. The method comprises the following steps: checking detection equipment; cleaning the inner wall of the boiler; performing preliminary visual inspection on the inner wall of the boiler; laser ultrasonic detection equipment is arranged on the inner wall of the boiler; systematically performing laser ultrasonic scanning on the inner wall of the boiler; an infrared thermal imaging camera is used for scanning the inner wall of the boiler; performing infrared thermal imaging scanning; comparing and analyzing the data; and compiling a detailed detection report. According to the invention, the laser ultrasonic detection technology can detect deep micro cracks on the inner wall of the boiler with high precision, even the micro cracks can be found before the micro cracks become significant problems, and the infrared thermal imaging technology can provide visual information about crack positions and sizes by capturing thermogram differences of crack areas, so that the accuracy of the thermal imaging is improved. This technique is particularly suited for the discovery of surface cracks and for the assessment of the scope of crack impact.

The utility model discloses a motor home air conditioner, refrigerator and hot water integrated system based on air expansion refrigeration, which comprises an air expansion refrigeration system arranged in a motor home, and the air expansion refrigeration system comprises a compressor, an air cooling heat exchanger, a heat regenerator, an expansion machine and a heat exchanger I; an outlet of the compressor sequentially communicates with the air cooling heat exchanger, a first inlet of the heat regenerator and an inlet of the expansion machine. An outlet of the expansion machine sequentially communicates with the cold side of the first heat exchanger, a second inlet of the heat regenerator and an inlet of the compressor. An air return port of the space in the touring car is sequentially communicated with a first fan, the hot side of a first heat exchanger and an air supply port through pipelines; an outlet of the compressor is connected with a heat exchanger III for preparing hot water; and an outlet of the expansion machine is connected with a fourth heat exchanger for refrigerating the refrigerator of the motor home. The system takes air as a circulating medium and is safe and environment-friendly; the internal space of the motor home is reasonably utilized by integrating the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger, and the requirement for cold and heat for the motor home is met.

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.

The present invention relates to the technical field of motor control, in particular to a motor control method, a motor, a vehicle, a storage medium, and a computer. The motor control method implements the movement of a modulation interval of a voltage waveform by introducing online adjustment of a power factor angle, thereby ensuring that the action of a switching tube does not occur in a drive system under a large current, improving the driving efficiency of the system, and ensuring the universality of this solution.

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.

The utility model relates to the technical field of chemical engineering, in particular to a refined oil filtering system which comprises a reforming reactor feeding pipeline, a high-pressure separation tank, a delivery pump and a filtering pipeline, the high-pressure separation tank is connected with a reforming reactor incoming material pipeline, the top of the high-pressure separation tank is connected with a torch pipeline, the bottom of the high-pressure separation tank is connected with a high-pressure separation tank discharging pipeline, and the high-pressure separation tank discharging pipeline is sequentially provided with a flow regulating valve and a regulating double valve; the delivery pump is connected with a discharge pipeline of the high-pressure separation tank; one end of a filtering pipeline is connected to the part, between the flow regulating valve and the regulating double valve, of the discharging pipeline of the high-pressure separation tank, the other end of the filtering pipeline is connected to the part, between the regulating double valve and the delivery pump, of the discharging pipeline of the high-pressure separation tank, and a filter is arranged on the filtering pipeline; the filter is additionally arranged between the high-pressure separation tank and the delivery pump, so that catalyst dust and fragments of a foam breaking net of the high-pressure separation tank are effectively filtered, unnecessary fluctuation during production can be reduced, and even abnormal shutdown is avoided.