Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

38results about How to "Does not affect runnability" patented technology

Method for collecting mechanical characteristic parameters of breaker based on high-speed camera

A method for collecting the mechanical characteristic parameters of a breaker based on a high-speed camera comprises the following steps that (A) the high-speed camera (1) is used for capturing the image information of an operation mechanism (2) during moving in the closing and opening process of the breaker, wherein the operation mechanism (2) comprises a switching-on spring (3), a spindle (4), a metal connecting rod (5), a main connecting lever (6) and a switching-off spring (7); (B) the collected image information is input into an industrial personnel computer, images are analyzed and processed, and all the mechanical characteristic parameter values of the breaker are calculated; (C) conventional electric signals and vibration signals are fused in the mechanical characteristic parameter values obtained by processing of the images, and sound wave signals are combined for conducting analysis to obtain comprehensive and reliable mechanical characteristic parameter values. The parameter test precision and the speed calculated by the method are both greatly improved, a non-contact type measuring method is achieved, and the problem that sensor clamps for mounting different breakers are not universal on the site is solved.
Owner:YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST +1

Ultra-supercritical secondary re-heating steam turbine set

The invention discloses an ultra-supercritical secondary re-heating steam turbine set. The ultra-supercritical secondary re-heating steam turbine set comprises a first bearing box, an ultra high pressure-high pressure cylinder, a second bearing box, a medium-pressure cylinder, a third bearing box, a first low-pressure cylinder, a fourth bearing box, a second low-pressure cylinder and a turning gear box which are assembled on a rotor in sequence. The capacity of the steam turbine set is 1000-1300MW, the ultra high pressure-high pressure cylinder is of a cylinder combined structure, the pressure of a steam inlet of an ultra high pressure part is 30-35MPa, the temperature is 600 DEG C, the pressure of a primary re-heating steam inlet of a high pressure part is 10MPa, the temperature is 610-630 DEG C, the medium-pressure cylinder, the first low-pressure cylinder and the second low-pressure cylinder are respectively of a double-flow-division structure, the medium-pressure cylinder provides steam for the first low-pressure cylinder and the second low-pressure cylinder respectively through communication pipes, the pressure of a secondary re-heating steam inlet of the medium-pressure cylinder is 2.8MPa, and the temperature is 610-630 DEG C. The ultra-supercritical secondary re-heating steam turbine set has the advantages of being large in capacity, high in parameter, small in occupied space, low in investment cost, stable and reliable in operation and obvious in economical benefit, saving energy, reducing consumption and the like.
Owner:DONGFANG TURBINE CO LTD

Error tolerance method in wireless public object request proxy construction application

The invention provides a method for tolerating faults, which is applied in a wireless public object request agent structure. The method comprises: realizing the creation of a mobile terminal object duplicate under the assistance of an accessing bridge object request agent layer, utilizing an accessing bridge log recording mechanism 31of the accessing bridge object request agent layer to record and store mobile terminal object state detecting points and mobile terminal object message events, realizing the detection of mobile terminal object failures under the assistance of the accessing bridge object request agent layer, realizing the deletion of mobile terminal failure objects under the assistance of the accessing bridge object request agent layer, and realizing the recovery of the mobile terminal failure objects under the assistance of the accessing bridge object request agent layer. The method fully utilizes a CORBA error tolerant basic facility and a mechanism in an existing CORBA 3.0.3 criterion, enlarges an ORB layer of the accessing bridge in the wireless CORBA, and can be jointed with the existing CORBA 3.0.3 criterion and a wireless CORBA 1.2 criterion without slots to satisfy the demands of applying the wireless public object request agent structure on the aspects of reliable and real time performance.
Owner:HARBIN ENG UNIV

Novel on-load-tap-changing combined rectifier auto-transformer with independent ends

A novel on-load-tap-changing combined rectifier auto-transformer with independent ends comprises a regulating transformer and two rectifier transformers. Phases of the regulating transformer are the same in structure. The regulating transformer comprises a high-tension coil, a front-end auto-regulating winding, a tail-end auto-regulating winding, a front-end on-load tap changer and a tail-end on-load tap changer. The front-end auto-regulating winding and the rear-end auto-regulating winding are combined ad connected to the front end of the high-tension coil of the regulating transformer and are connected with the same in parallel. The front-end and rear-end auto-regulating windings supply variable voltage to high-tension coils of the rectifier transformers through tap changing so as to achieve rough voltage regulating. The tail-end auto-regulating winding and the tail-end on-load tap changer are combined and connected to the tail ends of the high-tension coils of the rectifier transformers so as to achieve fine voltage regulating. The rough tap changer and the fine tap changer are fully isolated, regulating range is wide, regulating is multilevel, output of low voltage is smooth, operating performance is stable, harmonic wave generated by rectification can be reduced, power factor and production efficiency of rectifier systems are increased, and manufacturing cost is lowered.
Owner:GUANGXI LIUZHOU SPECIAL TRANSFORMER

Coking ammonium sulphate front part gas pipeline pressure welding method

ActiveCN103406676AAvoid safety hazardsReduce daily intensive care costsWelding apparatusCoke burnerEngineering
The invention relates to a coking ammonium sulphate front part gas pipeline pressure welding method. The method includes the following steps of step 1, enabling oxygen contents of a negative pressure operation area to be not more than 2%, step 2, enabling intensity of pressure of an air blower to be 14.5-15.5KPa, step 3, carrying out mother solution water seal separation and enabling the liquid level of mother solution to be not lower than 2.5m, step 4, plugging leak points, specifically, welding a V-shaped roll plate to prepare semi-circular arc-shaped roll plates, combining the two arc-shaped roll plates into a pair, welding the arc-shaped roll plates into a circular steel barrel to cover a gas pipeline, cutting the arc-shaped roll plates on connection portions of branch pipes and the gas pipeline into arc-shaped ports, and leading in nitrogen, step 5, manufacturing an arc-shaped-mouth horn barrel and a circular-mouth horn barrel and cutting the two horn barrels into symmetrical two halves respectively, and step 6, welding the horn barrels, specifically, welding the circular-mouth horn barrel with the arc-shaped roll plates, and welding the arc-shaped-mouth horn barrel with the arc-shaped ports and the gas pipeline. According to the welding method, the gas pipeline can be welded under the condition that a coke oven and a gas purification device operate normally.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD

Ballastless track arch-up improving method based on rope saw cutting

A ballastless track arch-up improving method based on rope saw cutting includes the following steps of firstly, determining the falling amount of an arch-up section of a ballastless track, and conducting steel bar embedding and anchoring on the positions, at the two ends of the arch-up section, of the ballastless track; secondly, drilling rope saw operation holes in the side face of the ballastless track; thirdly, cutting off concrete of a supporting part of the ballastless track, providing a falling space for the ballastless track, and limiting the cut ballastless track; fourthly, fine adjusting the ballastless track to fall by a design value, fully filling the lower gap or interlayer gap of the ballastless track with a filling material, and recovering the route stability; fifthly, conducting steel bar embedding and anchoring on an improvement area of the ballastless track, fine adjusting a fastener system and recovering the route smoothness. By means of the method, the existing structure of the ballastless track cannot be changed, the geometrical state of the ballastless track is stable in the improvement process, the train driving safety is not affected, and the method can be implemented in the skylight maintaining time and is suitable for the arch-up improvement of the ballastless track with a high-quality lower concrete force-bearing structure.
Owner:RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI

Sedimentation improving method for ballastless track based on rope saw cutting

The invention discloses a sedimentation improving method for a ballastless track based on rope saw cutting. The method comprises the following steps that (1) the sedimentation volume of the part, in asedimentation section, of the ballastless track is determined, and the two ends of the sedimentation section of the ballastless track are subjected to bar planting and anchoring; (2) a rope saw operation hole is drilled in the side surface of the ballastless track; (3) a rope saw is adopted for cutting concrete of the ballastless track, bonding constraint of the ballastless track is removed, andthe ballastless track after cutting is limited; (4) a jacking device placing groove is formed in concrete below a horizontal cutting seam; (5) after a jacking system is adopted for jacking the ballastless track to a design value, gaps of the lower portion of the ballastless track after jacking are filled with a filling material to be full, and the line stability recovers; (6) the ballastless trackin the improving area is subjected to bar planting and anchoring, the fastener system is accurately adjusted, and the line smoothness recovers. The method is simple, quick, safe and reliable, in theimproving process, the geometrical state of the ballastless track is stable, the running safety of trains cannot be influenced, and the improving can be conducted in the period of maintaining skylights and is suitable for quick jacking of the ballastless track.
Owner:RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI

Direct current capacitance detection method, apparatus and system for three-phase four-wire power distribution network compensation equipment

Embodiments of the invention disclose a direct current capacitance detection method, apparatus and system for three-phase four-wire power distribution network compensation equipment. By means of obtaining a three-phase compensation current instantaneous value and positive electrode and negative electrode direct current voltage instantaneous values of the three-phase four-wire power distribution network compensation equipment, a zero-sequence compensation current amplitude and a direct current voltage deviation fundamental wave amplitude are calculated so as to calculate the direct current capacitance of the three-phase four-wire power distribution network compensation equipment. According to the method, operation stop of the three-phase four-wire power distribution network compensation equipment is not needed; and instead, the direct current capacitance value can be detected in the normal operation process of the three-phase four-wire power distribution network compensation equipment, and the direct current capacitance value of the three-phase four-wire power distribution network compensation equipment can be continuously monitored.
Owner:YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST

Submersible electric pump control system and method

The invention discloses a submersible electric pump control system and a control method thereof, comprising a motor, a pump body provided with the output end of the motor, a control mechanism provided at the base end of the motor, and a host computer provided above the liquid surface. The control mechanism includes a waterproof sealed casing, a lower computer and a three-phase electrical parameter acquisition module and a power carrier module arranged in the cavity of the waterproof sealed casing, and also includes a liquid level transmitter and a device arranged outside the waterproof sealed casing. Current transformers and temperature sensors within the housing of the motor. The method is: the liquid level transmitter, the temperature sensor and the three-phase electrical parameter acquisition module collect the working parameters of the submersible electric pump and transmit them to the lower computer; the lower computer controls the power carrier module to perform data processing on the collected working parameters Modulation loading is uploaded to the host computer in real time by means of power carrier communication. The submersible electric pump control system and method realize online monitoring of the submersible electric pump.
Owner:河北省机械科学研究设计院有限公司

Wireless and intelligent trip

The invention relates to a wireless and intelligent trip which comprises an electric power information collecting module for obtaining power grid operation information. The electric power information collecting module is connected with the input end of a control circuit, and the control circuit is connected with a wireless data receiving-transmitting module; a power grid setting protection value is set in the control circuit in advance, and electric power operation information is obtained by the control circuit according to collected information transmitted by the electric power information collecting module and are stored; the electric power operation information is compared with the power grid setting protection value through the control circuit, when the electric power operation information is not matched with the power grid setting protection value, the control circuit transmits early-alarming information through the wireless data receiving-transmitting module in a wireless mode, and the sampling frequency of the control circuit on the electric power operation information of the electric power information collecting module is increased. The wireless and intelligent trip is compact in structure, can conduct electric power information detection analysis, fault early warning and relative data wireless receiving and transmitting, and guarantees that a power grid safely and reliably operate.
Owner:STATE GRID CORP OF CHINA +3

Fault detection method and system for wind driven generator

The invention discloses fault detection method and system for a wind driven generator. The method comprises the following steps that a blade video of the wind driven generator in operation is collected from the front side at a preset frequency; the wave vibration waveform of each blade of the wind driven generator in the rotating plane is obtained through the blade video; and the wave vibration waveforms of all blades are compared, whether vibration difference exists or not is judged, if the vibration difference exists, whether the blades of the wind driven generator have faults is judged, andif the vibration difference does not exist, whether the blade of the wind driven generator is in good condition is judged. According to the method, the wave vibration waveform of each blade in the rotating plane is obtained through the collection of the blade front side video of the wind power generator in operation, and whether the wind power generator has a fault or not is judged through single-machine blade comparison; the non-contact type measurement is achieved, the structure and operation of the wind driven generator are not influenced, the cost is lower, the application is simple, andthe detection can cover all the blades, being sufficient and comprehensive.
Owner:北京汉能华科技股份有限公司

Medical antibacterial elevator panel auxiliary control device

PendingCN112079218AEasy to useDoes not affect normal economic operationLavatory sanitoryElevatorsControl cellStructural engineering
The invention relates to a medical antibacterial elevator panel auxiliary control device. The medical antibacterial elevator panel auxiliary control device comprises a disinfection bottle, a bearing plate and a control panel, wherein control units are arranged on the control panel; each control unit is aligned and matched with one key on an elevator panel; the control units comprise transmission pressing keys, suction cylinders and piston connecting pieces; the transmission pressing keys are matched and opposite to the keys on the elevator panel; when the transmission pressing keys are pressed, the transmission pressing keys can move corresponding to the control panel, and press and trigger the corresponding keys on the elevator panel; the suction cylinders further comprise one-way liquidinlet switches and antibacterial nozzles; the one-way liquid inlet switches communicate with suction cavities and guide cavities; liquid spraying directions of the antibacterial nozzles are towards the transmission pressing keys; and after users finish pressing, return pieces reversely pull back piston ends, and the piston ends reversely slide in the suction cylinders. The device can quickly and conveniently update elevators, can timely disinfect the keys after pressing use each time, and effectively reduces bacterial propagation.
Owner:王丽萍

Concrete dam abrupt slope foundation surface repeated contact grouting structure and grouting method thereof

InactiveCN110306555ADoes not affect water storage tasksDoes not affect runnabilityDamsFoundation engineeringWater flowEngineering
The invention discloses a concrete dam abrupt slope foundation surface repeated contact grouting structure and a grouting method thereof, and particularly discloses a concrete dam abrupt slope foundation surface repeated contact grouting structure for carrying out repeated supplementary grouting when the contact surface of a concrete dam and a foundation surface is expanded and a grouting method thereof. The grouting structure is arranged at an abrupt slope section of the concrete dam and is divided into a plurality of irrigated areas in a direction vertical to the water flow; each irrigated area is internally provided with two sets of grouting pipelines, each set of grouting pipeline comprises a grouting pipe, the grouting pipes are transversely arranged U-shaped pipes, the bottom pipe orifices are grout inlets and the upper pipe orifices are grout return ports; and the grouting pipes are two-layer structures which respectively comprise an inner layer and an outer layer, the inner parts of the grouting pipes are PVC pipes, grout outlets are alternately formed in the PVC pipes, the outer parts of the grouting pipes are elastic rubber casing pipes, and diffusion holes are alternately formed in the rubber casing pipes. The structure is capable of carrying out contact grouting construction for the first time when the field practical condition achieves the design requirements, andadopting the same set of pipeline to carry out complementary grouting when the contact surface of the concrete dam and the foundation surface is expanded again.
Owner:POWER CHINA KUNMING ENG CORP LTD

Non-contact distance early warning device suitable for elevators

InactiveCN104261216AMonitor runnabilityMonitor running statusElevatorsThird partyMicrocomputer
The invention discloses a non-contact distance early warning device suitable for an elevator. The non-contact distance early warning device suitable for the elevator comprises a collection display module, an encoder for receiving a segment code signal output by the collection display module, a singlechip connected with the encoder, and a display terminal used for receiving signals of the single-chip microcomputer; the collection display module is placed on the display module of the elevator in an overlapping manner, and comprises a plurality of photosensitive diodes arranged on a back side and in the same positions of the self display elements of the elevator, and a plurality of light emitting diodes arranged on a front side and in positions corresponding to the photosensitive diodes. The non-contact distance early warning device suitable for elevators has the beneficial effects as follows: the early warning device provided by the invention adopts a photoelectric conversion technology, can remotely and reliably monitor the operational parameters and the running states of the elevator, and provides an effective mean for improving the security and the reliability of the elevator, and the early warning device, as a third party, is completely isolated from the self control system of the elevator, and cannot influence the self running of the control system of the elevator.
Owner:SUZHOU HANSEN HUANA ENERGY SAVING TECH

A wireless networked current non-contact measuring device and method for magnetic sensing units

The invention discloses a wireless networked current non-contact measuring device and method for a magnetic sensing unit, comprising a flexible fixed support, a magnetic sensing unit, and a collection and receiving unit, and the magnetic sensing unit is arranged on the flexible fixed support , the magnetic sensing unit is connected to form a closed loop through the converging receiving unit, and the magnetic sensing unit is communicatively connected with the converging receiving unit. When in use, the flexible fixing bracket equipped with the magnetic sensing unit is wrapped around the conductor under test, and connected by the collecting and receiving unit to form a closed loop for detection. According to the Ampere loop theorem, there is a magnetic field around the conductor under test. The current in the conductor to be measured can be calculated by performing numerical integral calculation on the measured values ​​of each of the magnetic sensing units in the closed loop. This design does not contain an iron core, the magnetic induction equipment has strong anti-interference ability, and the detection range is large, and it is not affected by the shape of the measured conductor.
Owner:四川纽沃思自动化科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products