10results about How to "Prevent overrunning" patented technology

The present application provides a kind of inner slag discharging device and its slag discharging method, it includes high wear-resistant obturator, drill bit drill rod device, venturi water and drill slag dry-wet separator, the drill bit drill rod device is located in high wear-resistant obturator, drill slag dry-wet separator is connected with drill bit drill rod device by venturi water.The flow direction of drill slag can be changed by changing the running direction of slag discharging medium, so as to reduce the scouring, soaking and friction of slag discharging medium and drill slag on the hole wall, which is beneficial to the formation of drilling hole;It can achieve the purpose of point coring by achieving "falling and discharging simultaneously";Drilling cuttings can be well collected, which is beneficial to the civilized production of construction site and prevents dirtiness and disorder;If inert gas is used for slag discharging during construction, it can also achieve the purpose of inhibiting spontaneous combustion of coal seam.Through the above technical scheme analysis, the device is theoretically feasible and the operation is reliable, which provides good drilling quality for casing, greatly improves the success rate of drilling and casing and the extraction effect.

The application discloses a power grid load prediction method and system based on a large model, and relates to the technical field of power grid load prediction.The method comprises the following steps: S1, collecting multi-source load comprehensive data, and performing edge processing and data preprocessing; S2, monitoring a mutation point in real time, constructing a behavior label sequence, and identifying a high-frequency disturbance point; S3, constructing a prediction input vector of the multi-source load comprehensive data, performing load data prediction, and calculating a physical constraint regularization value; S4, performing dynamic credible interval evaluation, judging the prediction result in real time according to a credible boundary value interval, and feeding back a control instruction; and S5, performing error analysis and retraining triggering, comprehensively evaluating prediction accuracy and output stability, and performing model optimization, version management and feedback learning.The method solves the problem that a prediction model is prone to oscillation due to fast load change in a high-density load scene.

The invention belongs to the technical field of coal mine safety, and particularly relates to a water-based mucus gas inhibitor, a preparation method and an application device.The preparation method of the water-based mucus gas inhibitor comprises the following steps that raw materials are prepared, mixed and stirred, and stored for use; the application device of the water-based mucus gas inhibitor is applied to the water-based mucus gas inhibitor and comprises a preparation device, a conveying device, a spraying device and a pressure injection device. The water-based mucus gas inhibitor disclosed by the invention is a convenient and environment-friendly substance with very small damage to a coal body, can effectively improve the wettability of the coal body, and has the capability of inhibiting desorption of gas in the coal body, and the technology is used for injecting the water-based mucus gas inhibitor into a coal seam before the coal seam is mined, so that dust is removed by improving the wettability of the coal body, and the coal seam is prevented from being damaged. And gas generated in the mining process is inhibited, so that safe production is ensured.

The invention relates to an inductance suppression capability optimization method and system based on temperature compensation, and relates to the technical field of notebook computer power supplies, and the method comprises the steps: collecting a temperature detection value and an inductance specification of a power adapter; determining a temperature change value according to the temperature detection value; determining a temperature rise coefficient according to the inductor specification; determining an inductance change value by combining the temperature rise coefficient and the temperature change value; and determining a switching frequency adjustment value according to the inductance change value, and outputting the switching frequency adjustment value for adjustment. The invention has the effect of improving the inductance suppression capability of the notebook computer power supply in a high-temperature scene.

The utility model discloses an active cross brace control device for inclined bridge tower construction, which comprises a steel wedge block, a servo component, a cross brace steel pipe and a steel connecting piece, one end of the transverse supporting steel pipe is connected with the inner side of one tower column of the inclined bridge tower through a steel connecting piece, the other end of the transverse supporting steel pipe abuts against the inner side of the other tower column of the inclined bridge tower through a servo assembly and a steel wedge block, and the servo assembly comprises a front end plate, a rear end plate, a steel frame, a servo jack, a locking mechanism and a base. The bottom side of the steel frame is installed on the base, the rear end plate is connected with the rear side of the steel frame and the base, a base of the servo jack is installed in the steel frame and connected with the steel frame and the rear end plate, the hydraulic rod extends out of the steel frame and is connected with the front end plate, and the two locking mechanisms are arranged on the two sides of the servo jack respectively. The locking mechanism comprises a locking screw and a locking nut. The utility model has the advantage that the safety and the stability of the bridge tower structure are ensured.

The application discloses a nonlinear multidirectional irregular wave and internal wave wave-making system and a control method thereof, and relates to the technical field of hydrodynamic experimental research. The system comprises a wave-making module, a monitoring unit and a processing module. The wave-making module is of a non-uniform height layering structure, and the height of the layering structure can be self-adaptively adjusted according to a target frequency band. The monitoring unit is used for collecting flow velocity and wave height in real time. The processing module is internally provided with a mode management module, a wave construction module, a displacement conversion module, an instruction output module, a closed-loop correction module and a monitoring calculation module. The method comprises the following steps: generating a target vertical velocity profile, inversely kinematically solving, driving output, real-time monitoring, closed-loop selective correction, special monitoring and automatic mode switching. The application realizes multi-mode high-precision wave making of surface waves, internal solitary waves, quasi-steady internal waves, broken internal waves and mixed waves, and solves the problems of vertical velocity distribution distortion, full-frequency band correction interference and lack of pertinence in internal wave simulation.

This application relates to the technical field of mining equipment, specifically to a flow guiding component and a gas dispersing device suitable for gas dispersion. The flow guiding component for gas dispersion mainly includes an inlet pipe section, a middle pipe section, and an outlet pipe section. The inlet pipe section allows the fluid used for gas dispersion to undergo initial acceleration before entering the middle pipe section. The middle pipe section stabilizes the fluid flow. Finally, the outlet pipe section gradually reduces the velocity of the high-speed airflow in the middle pipe section as it flows out, while simultaneously expanding the airflow coverage area. This diffused airflow can cover the triangular area in the upper corner, and through the entrainment effect, it fully mixes the surrounding fresh air with the dispersed gas mass before discharging it outwards. This solves the defects of traditional straight-tube ventilation ducts, such as insufficient air velocity, limited coverage, and inefficient dilution, and avoids the problem of gas exceeding limits in narrow spaces, especially in the upper corners.

The utility model belongs to the field of removing joint lines of earphone rear shells, particularly relates to a device for removing joint lines of earphone rear shells, and aims to solve the problems that the existing product is irregular, the manual rolling force and direction are difficult to control, joint lines in certain areas are not flattened frequently, and the rolled product is ugly, so that the production efficiency is high. In order to solve the problem that a plurality of products are wasted due to the fact that oil is sprayed on the oil tank, the oil tank comprises a bottom frame, a top frame is welded to the top side of the bottom frame, and two operation doors are rotationally connected to the two sides of the top frame through hinges correspondingly. When in use, the multi-directional horizontal and vertical movement can be realized, and the positioning assembly and the earphone rear shell can be driven to realize 360-degree rotation by matching with the rotating assembly, so that the qualified rate of products is ensured, more blocks are rolled compared with manual rolling of operators, the waste of the products is reduced, the cost is saved, and the production risk is reduced; the phenomenon that the force direction is difficult to control is avoided, and the product quality is improved.

This utility model relates to the field of bollard technology and discloses a retractable bollard with a light warning function. A fixed base and a guide rail are installed on the inner bottom of the fixed base, with the guide rail arranged along the height direction of the fixed base. Several sliding channels, adapted to the guide rails, are arranged at equal intervals around the circumference of the retractable bollard. A top cover is provided on the top of the retractable bollard, and several layers of annular warning light strips are arranged vertically at equal intervals along the edge of the top cover. A driving device is used to drive the retractable bollard to move up and down within the fixed base. The driving device includes a motor, a lead screw, and a nut. When the motor is activated, it drives the lead screw to rotate. The rotation of the lead screw is converted into linear motion of the retractable bollard through the nut, thereby realizing the raising and lowering of the bollard. This utility model improves road safety and warning effect, and achieves precise and stable control of the retractable bollard.

The utility model provides a part positioning mechanism, and belongs to the technical field of part positioning. Comprising a positioning base used for containing a plurality of sets of parts, the positioning base is provided with an alignment assembly used for enabling the sets of parts to be mutually aligned and clamped, the alignment assembly comprises a driving part and a clamping part, the driving part drives the clamping part to reciprocate towards the side where the parts are located, and the multiple sets of parts are aligned and clamped at the same time. According to the part positioning mechanism, quick alignment and clamping operation of multiple sets of parts can be achieved on automatic part feeding equipment, the positioning efficiency is greatly improved, and the overall production efficiency can be improved. The mechanism is high in positioning precision, easy and convenient to operate, high in universality and capable of effectively preventing parts from being damaged, improving the running reliability of equipment and guaranteeing the production efficiency and the product quality.