11results about How to "Avoid fault" patented technology

The invention relates to a variable-thickness integral control surface prefabricated body forming method and a mold, belongs to the technical field of control surface prefabricated body forming, and solves the technical problems of long forming preparation period and local layering of a control surface prefabricated body. Cutting cloth according to the size of the prefabricated body division area; preparing a lower layer-by-layer staggered triangular filling area prefabricated body, and preparing an upper layer-by-layer staggered triangular filling area prefabricated body; fixing the prefabricated body, and sewing; the upper die assembly and the lower die assembly are used for replacing the lower sewing tool and the upper sewing tool; and the upper mold assembly and the lower mold assembly are closed through a pressing strip, and the thickness-variable overall control surface prefabricated body is fixed. The method is used for forming the variable-thickness integral control surface preform.

The invention relates to the technical field of building engineering, in particular to a BIM (Building Information Modeling)-based ship lock engineering virtual construction system, which comprises a project information management module, a process management module, an engineering decomposition structure management module, a mobile terminal module, a plan management module, a progress tracking module, an order management module and a progress 4D simulation module, the project information management module provides project information for the process procedure management module and the project decomposition structure management module; the process and process management module defines a construction process and a process according to project information, and is bound with components of the project decomposition structure management module; the engineering decomposition structure management module is responsible for generating decomposition structures and codes of the components; the plan management module formulates a project progress plan based on the generation information of the project decomposition structure management module; the progress tracking module monitors the progress of a construction site in real time, if the progress accords with a plan, a material order is generated through the order management module, and if the progress is abnormal, the material order is fed back to the plan management module for adjustment; the mobile terminal module provides progress update to the plan management module, and submits a production order to the order management module at the same time; and the order management module ensures synchronization of material supply and construction according to the order, and shares progress data with the progress 4D simulation module to generate dynamic visual display of the construction progress.

The utility model discloses an explosion-proof voltage transformer, relates to the technical field of voltage transformers, and aims to solve the problems that the outside of an insulating tube of the conventional voltage transformer is not protected, the insulating tube is easily damaged by external force, the phenomena of faults and pits are avoided, explosion is easily caused, and the explosion-proof performance is poor. A secondary winding main body is arranged at the upper end of the iron core main body, an upper top plate is arranged at the upper end of the secondary winding main body, and a high-voltage insulating sleeve is arranged at the upper end of the upper top plate; the protective sleeve is arranged outside the high-voltage insulating sleeve, the outer wall of the protective sleeve is provided with vent holes, the vent holes and the protective sleeve are of an integrated structure, the number of the vent holes is multiple, the protective sleeve is internally provided with a cavity, and the cavity and the protective sleeve are of an integrated structure; and the wiring board is arranged at the lower end of the iron core main body, and wiring terminals are arranged on the two sides of the wiring board and the top end of the high-voltage insulating sleeve.

The utility model relates to the technical field of coatings, in particular to a water-based evaporation-resistant waterproof paint coating, which comprises a waterproof primer and a buffer paint layer coated on the waterproof primer, and a compression-resistant layer is further coated on the buffer paint layer.

The application provides a method for detecting the depth of a conduit in concrete, which comprises the following steps: obtaining the medium density of the space between a first pressure sensor and a second pressure sensor on the conduit, and determining the first space position type of the space between the first pressure sensor and the second pressure sensor on the conduit; obtaining the first medium type corresponding to the position of a first vibration sensor and the second medium type corresponding to the position of a second vibration sensor, and determining the second space position type of the space between the first vibration sensor and the second vibration sensor on the conduit; if the first space position type and the second space position type are consistent, determining the first depth information based on the medium density, determining the second depth information based on the vibration signal, and determining the target depth information according to the first depth information and the second depth information. Through the method, the detection reliability can be improved by avoiding the single signal misjudgment, and the depth detection precision is improved by comprehensively calculating the target depth.

The invention discloses a lubricating oil service life prediction method and system based on multi-index fusion and a medium, and relates to the field of lubricating oil service life assessment, and the method comprises the steps: carrying out the principal component analysis of a plurality of physicochemical indexes based on a lubricating oil sample data set, and obtaining a principal component score matrix; performing data splitting and recombination on the lubricating oil sample data set according to different numbers of physicochemical index combination modes; based on the principal component score matrix and the data set under various physicochemical index combinations, determining an optimal physicochemical index combination by adopting a multivariate linear fitting and score comparison mode; weighting each physicochemical index in the optimal physicochemical index combination; based on the evolution law of each physicochemical index along with the running mileage in the optimal physicochemical index combination and the corresponding weight, establishing a multi-index fusion lubricating oil service life prediction model; and predicting the service life of to-be-tested lubricating oil by using the lubricating oil service life prediction model. According to the method, the multi-index coupling relationship under limited data is deeply excavated, so that the service life of the lubricating oil is accurately predicted.

This utility model discloses a grounding strip with a braided structure, belonging to the field of lightning protection grounding technology, including a graphite braided strip and a reinforcing braided layer. The graphite braided strip is formed by weaving graphite wires. The reinforcing braided layer is a layered structure formed by weaving a mixture of reinforcing wires and graphite wires, and the layered structure of the reinforcing braided layer is arranged circumferentially along the interior of the graphite braided strip. The graphite braided strip, woven from graphite wires, provides excellent conductivity and corrosion resistance. The reinforcing braided layer, formed by weaving a mixture of reinforcing wires and graphite wires, enhances the mechanical strength of the grounding strip and reduces the probability of damage or breakage. The mixed weaving of graphite wires and reinforcing wires serves as a structural transition, avoiding discontinuities or abrupt changes in the resistivity of the graphite braided strip, which would lead to an increase in overall grounding resistance and a reduction in current discharge efficiency. The integrated braided structure gives the grounding strip both flexibility and strength, facilitating installation and transportation.

The application provides a display panel and a preparation method thereof and a display device. The display panel comprises a substrate, a plurality of pads located in a non-display area, the plurality of pads are arranged at intervals on one side of the substrate, and a gap is formed between adjacent pads; a side wall of the pad near the gap comprises an inclined surface, the inclined surface is inclined in a direction away from the gap along a direction away from the substrate; and an insulating structure is located at least in the non-display area, the insulating structure at least partially fills the gap, and a normal projection of the inclined surface on the substrate at least partially overlaps a normal projection of the insulating structure on the substrate. The display panel provided by the application avoids the problem of dissection when a subsequent insulating layer is formed to a certain extent by arranging the inclined surface on the side wall of the pad or by filling the gap with the insulating structure and not being lower than the pad, thereby avoiding short circuit caused by the contact between the side wall of the pad and other metals, and improving the reliability and use performance of the display panel.

The invention relates to a manufacturing method of a fibrofelt for automatic prime coat equipment and the fibrofelt, and the manufacturing method of the fibrofelt comprises the following steps: 1, opening and disorderly carding chemical fiber short fibers A with the diameter of 19-25 microns to form a thin fiber web B with the weight of 20-40 g / m < 2 >; secondly, the multiple layers of thin fiber webs B are laid in parallel and subjected to needling reinforcement, and fiber webs are obtained; thirdly, the fiber web is laid to obtain a multi-layer fiber web, then the multi-layer fiber web is reinforced, and a fiber felt block with the volume density being 0.2-0.3 g / cm < 3 > is obtained; and 4, according to the requirements of automatic prime coat equipment, carrying out module processing on the fibrofelt blocks to obtain the fibrofelt with a specific shape and specification. Therefore, the fibrofelt manufactured by the design has better porosity and better uniformity of coating thickness and width.

The embodiment of the application discloses a mine gushing water source identification and early warning system, relates to the technical field of mine safety production, and is convenient for realizing closed-loop management from risk discovery to risk elimination. The system comprises: a water source identification module, which is used for identifying the water source type of the water sample to be identified based on water quality index data; an early warning generation module, which is used for matching preset early warning rules according to the identification result and generating hierarchical early warning information; an information pushing module, which is used for pushing the hierarchical early warning information to the terminal equipment of the corresponding person in charge according to the early warning level and a preset pushing strategy; a disposal closed-loop module, which is used for storing the disposal record in association with the corresponding identification result and early warning information to form a complete closed loop from identification to disposal; and a platform interfacing module, which is used for pushing at least one kind of data in the stored identification result, early warning information and disposal record to an external platform to realize data sharing and business cooperation. The application is suitable for the scene of mine gushing water source identification and early warning.

This application belongs to the field of nuclear power operation technology, specifically relating to a pressure stabilizing device for a containment negative pressure measurement reference end in a nuclear power plant. The device includes: a mesh filter, an air filter, a solenoid valve, a first buffer tank, an electrically controlled regulating valve, and a straight-through connector, all connected sequentially. The other end of the solenoid valve is also connected to the straight-through connector via a second buffer tank. The device consists of a main circuit and a bypass circuit, enabling multi-stage coordinated operation and dynamic adjustment. Even under severe external turbulence, the pressure value at the measurement end remains within the threshold range. The device's buffering and filtering capacity remains normal even if the solenoid valve or the electrically controlled regulating valve fails.