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35results about How to "Troubleshoot technical problems" patented technology

Wind driven generator blade lightning protection device with metal blade tip

PendingCN106762469AImprove the conductive effectReduced effectMachines/enginesEngine componentsWind drivenWind force
The invention relates to a wind driven generator blade lightning protection device, in particular to a wind driven generator blade lightning protection device with a metal blade tip. The device comprises a wind driven generator blade, the metal blade tip arranged on the blade tip part of the wind driven generator blade, and a metal protection sleeve arranged on the metal blade tip in a sleeving manner and connected with the metal blade tip in an electric conduction manner. At least two electric conduction belts are arranged on the upper arc curved face and the lower arc curved face of the opening end of the metal protection sleeve correspondingly in an extending manner. The electric conduction belts extend in the axial direction of the wind driven generator blade and are arranged at intervals in the radial direction. Electric conduction rings are arranged at the positions, at the rear portion of the opening end of the metal protection sleeve, of the blade tip part in a surrounding manner and are connected with the electric conduction belts in an electric conduction manner. The wind driven generator blade lightening protection device has the beneficial effects that compared with the prior art, the technical problem of lightning triggering of a blade tip end is solved effectively, the structure is simple, the cost is low, the dead load is small, the wind driven generator blade lightning protection device can be used for preassembling before the blade is delivered out of a factory and meanwhile can be used for additional installing and transforming of the wind driven generator blade in running.
Owner:张瑞佳

Code debugging method, user equipment, storage medium and device

The invention relates to the technical field of code debugging, and discloses a code debugging method, user equipment, a storage medium and a device. The method comprises the following steps: traversing each to-be-operated instruction in an instruction sequence, and matching the to-be-operated instruction with a preset legal instruction; when the matching is successful, detecting whether the to-be-operated instruction conforms to a first instruction format or not; when the first instruction format is met, reading a first target instruction from the to-be-operated instruction; compiling the first target instruction to obtain an instruction running result; and when an error prompt occurs in the instruction operation result, marking the first target instruction. Obviously, when compiling eachto-be-operated instruction, the legality of the instruction type is verified firstly, whether the instruction format meets the requirement or not is judged, finally the instructions are read one by one from the instruction sequence, and the single instruction is independently operated, thereby directly marking the instruction position where the operation error occurs, realizing the automatic checking of the operation error, and solving the technical problem that the code operation fault is difficult to position.
Owner:北京码上趣学科技有限公司

Method and system for identifying insulation defect of dry-type air-core reactor and terminal equipment

The embodiment of the invention relates to a method and system for identifying insulation defects of a dry-type air-core reactor and terminal equipment, which are applied to an on-line monitoring device for insulation defects of the dry-type air-core reactor. The on-line monitoring device is connected with an operation loop; the operation loop comprises a bus of a power system, a circuit breaker connected with the bus and the reactor connected with the circuit breaker; the on-line monitoring device is used for collecting oscillation overvoltage waveforms of switching operation of the reactor in the operation loop and recording and storing the voltage waveforms; the voltage waveforms are processed; the oscillation attenuation voltage waveform and the reference waveform of the reactor are acquired in real time, and the periods and attenuation coefficients thereof are compared. Diagnosis of the insulation defect of the reactor is achieved, and the technical problem that an existing monitoring dry-type air-core reactor is inaccurate and not timely in insulation defect identification, so that turn-to-turn short circuit of an electric power system is caused by insulation aging of the reactor, and then equipment failure and fire catching are caused is solved.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID

Hollow rotating and twisting sealing structure for fried dough twist machine

The invention belongs to the technical field of food processing machinery, particularly relates to a hollow rotating and twisting sealing structure for a fried dough twist machine, and mainly solves the technical problem that a hollow rotating and twisting sealing structure for a fried dough twist machine leaks flour in the prior art. In order to solve the technical problem, the adopted technical scheme is that the hollow rotating and twisting sealing structure for the fried dough twist machine consists of a compression adjusting cover, a small flour barrel, a small flour bowel, an O ring and a bearing, wherein the O ring is arranged in a groove on the bottom surface of a large round hole in the upper part of the small flour bowel; the small flour barrel is arranged in the large round hole in the upper part of the small flour bowel and the lower end face of the small flour barrel fixes the O ring in the groove on the bottom surface of the large round hole; the bearing is arranged on the lower part of the small flour barrel and is positioned between the outer wall of the small flour barrel and the inner wall of the large round hole of the small flour bowel; the compression adjusting cover is connected with the upper part of the inner wall of the large round hole of the small flour bowel and fixes the bearing in the large round hole of the small flour bowel. The hollow rotating and twisting sealing structure for the fried dough twist machine has the advantages of good sealing property and no flour leakage.
Owner:韩学珍

Lead valve device for casting plate machine

The invention provides a lead valve device for a casting plate machine, which comprises a main body and a control rod component, wherein the exterior of the main body comprises a first surface, a second surface and a slide wall; the first surface is opposite to the second surface; the side wall is arranged between the first surface and the second surface; the interior of the main body comprises a first through hole and a second through hole; the first through hole simultaneously passes through the first surface and the second surface; one end of the second through hole is communicated with the first through hole while the other end passes through the side wall; a control rod interface is arranged in the position where the first through hole passes through the first surface; a liquid inlet is arranged in the position where the first through hole passes through the second surface; a turning port is arranged in the position where the second through hole is communicated with the first through hole; a liquid outlet is arranged in the position where the first through hole passes through the side wall; the control rod component is arranged in the first through hole through the control rod interface and is in close fit with the inner wall of the first through hole; and a pipeline from the liquid inlet to the liquid outlet is closed or opened. The lead valve device for the casting plate machine is simple in structure and excellent in sealing property and effectively solves the technical problem of the prior art that the lead valve is difficult to close under the influence of lead leakage.
Owner:ANHUI LEOCH POWER SUPPLY

Data synchronization method and related device for current differential protection of AC line

This application discloses a current differential protection data synchronization method of an AC line and a related device. The method includes: first judging the faulty phase of the three-phase line through the starting condition of the starting element; then using the sending end of the faulty phase to measure the voltage and related The line parameter calculation is the voltage change of the receiving end, that is, the calculated voltage; finally, the waveform matching can be performed between the target measured voltage before and after the starting element of the receiving end and the calculated calculated voltage, and the maximum value of the calculated waveform similarity can be obtained. The sampling time error between the AC lines on both sides, that is, the time error, the operation process is easy to execute, the calculation is simple, and the obtained data is highly reliable. In addition, the entire process of the scheme does not depend on the consistency of the data sending and receiving channels. Therefore, the present application solves the technical problem that in the existing channel-based data synchronization technology, channel multiplexing easily leads to inconsistency of transmission and reception channel delays, resulting in misoperation of current differential protection.
Owner:POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD

Rapid shunting and distributing mechanism

The invention provides a circulating type rapid multi-stage filter pressing and distributing mechanism which comprises a mounting plate, a distributing assembly and a dividing assembly; the distributing assembly is arranged at a feeding port, the distributing assembly is mounted above the mounting plate, and the distributing assembly comprises a distributing cylinder unit, a liquid adding unit anda driving unit; a plurality of distributing areas are arranged in the distributing cylinder unit; the distributing areas are rotationally switched and pass through the feeding port one by one; the feeding unit is mounted on the distributing cylinder unit; the liquid adding unit is used for adding liquid to filter residues in the distributing areas from inside to outside; the driving unit is arranged on one side of the distributing cylinder unit, and the driving unit synchronously drives the distributing cylinder unit and the liquid adding unit to operate; the filter residues subjected to filter pressing are conveyed in batches by utilizing the distribution cylinder unit in the distributing assembly, and moisture is input into the filter residues in the conveying process, so that the filter residues are wetted from inside to outside, the surface layers of the filter residues are prevented from being condensed into balls, and the technical problem that the filter residues cannot be efficiently purified due to condensation into balls is solved.
Owner:张克军

An intelligent construction site 3D hidden danger investigation equipment and system

An intelligent construction site 3D hidden trouble checking device and its system according to the present invention belong to the technical field of construction site hidden trouble checking equipment, including a base, a 3D camera, a protective cover, and a supporting square tube. A sliding square tube is arranged on the top of the supporting square tube, and angle adjustment is also included. Mechanism, impurity removal mechanism and hinged seat, the hinged seat is provided with a support bar hinged to it, the protective cover is made of transparent acrylic plate material, one side of the protective cover is equipped with a smoke sensor, and the other side of the protective cover is equipped with PM2. 5 detection sensors, the top of the support bar is provided with a buzzer. The analysis module of the present invention compares and analyzes the 3D image data and the standardized image data to determine whether the hidden safety hazard scene meets the set standard, and the dust attached to the protective cover can be effectively cleaned through the impurity removal mechanism to avoid dust damage The image acquisition operation of the 3D camera has a great impact, which improves the accuracy of the hidden danger investigation of the hidden danger scene of the present invention.
Owner:上海有间建筑科技有限公司

Three-dimensional virtual reconstruction method and system for medical image

The embodiment of the invention provides a three-dimensional virtual reconstruction method and system for a medical image. The method comprises the following steps: carrying out deep learning training on multiple groups of original medical images to obtain multiple groups of region feature data of regions of interest; carrying out gradient training learning according to the multiple groups of region feature data to obtain multiple groups of two-dimensional convolution kernel models; forming multiple groups of three-dimensional convolution kernel models by adopting the multiple groups of two-dimensional convolution kernel models; performing convolution processing on the multiple groups of original medical images by adopting the multiple groups of three-dimensional convolution kernel models to generate multiple groups of preprocessed medical images; and performing three-dimensional virtual reconstruction by adopting the multiple groups of preprocessed medical images. By adopting the technical scheme of the invention, the boundary of each organ in each preprocessed medical image can be clearer; and the fault data of each preprocessed medical image can realize smooth transition, so that the technical problem that the medical image has a fault during three-dimensional virtual reconstruction is solved.
Owner:GUANGZHOU HUANTEK CO LTD +2
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