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56results about How to "Convenient for daily inspection" patented technology

Handheld partial discharge detector of transformer

The invention provides a handheld partial discharge detector of a transformer. The handheld partial discharge detector comprises an ultrasonic sensor, a high-frequency current sensor, a data acquisition module, a signal conditioning unit and a data diagnosis and analysis module, wherein the data acquisition module is used for acquiring detection data according to a discharge signal and a high-frequency current pulse signal, wherein the detection data comprise ultrasonic sensor data and high-frequency current sensor data; the signal conditioning unit is used for receiving the detection data transmitted by the data acquisition module and carrying out the pre-process on the detection data to generate data to be analyzed; and the data diagnosis and analysis module is sued for carrying out local discharge detection analysis according to the data to be analyzed. The handheld partial discharge detector of the transformer, disclosed by the invention, can carry out effective detection and analysis on a local discharge signal of the transformer generated to a field transformer and judges whether the interior of the transformer generates local discharge or not through sound and electricity combined analysis, and carries out qualitative estimation on the intensity of the local discharge signal so as to have the advantages of compact structure, handheld type, portability, convenience in detection and the like.
Owner:ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO +2

Transformer substation settling and pole stress monitoring system

ActiveCN109655036AAccurately monitor the degree of inclinationReal-time control of force statusForce measurement by measuring optical property variationHeight/levelling measurementDecision-makingStress monitoring
The invention provides a transformer substation settling and pole stress monitoring system. The transformer substation settling and pole stress monitoring system comprises an in-station settling monitoring subsystem, a tower pole and surrounding soil mass differential settlement monitoring subsystem, an inclination monitoring subsystem, a structural support stress strain monitoring subsystem, a satellite positioning monitoring subsystem, a data management and display subsystem and a structural safety assessment and early-warning subsystem. All monitoring subsystems can automatically complete data collection, the data management and display subsystem can comprehensively process monitoring information collected and uploaded by all the monitoring subsystems, the functions of classified filing, query, saving and the like of the data are achieved, and monitored information is displayed to a user; besides, sorted data is subjected to settling thorough the structural safety assessment and early-warning subsystem, the safety state of a transformer substation is assessed, the user is assisted in scientific decision making, or the user is informed of timely handling, and a technical supportis provided for safe running of the transformer substation.
Owner:云南电网有限责任公司迪庆供电局

Track-hanging robot for routing inspection

The invention discloses a track-hanging robot. The track-hanging robot comprises a track and a moving trolley running on the track. A sliding contact wire track is hoisted below the track in the trackdirection. The moving trolley comprises a trolley body, a walking driving module, a moving power-taking module, a guide module, a lifting device and a detecting cloud platform. The trolley body, thelifting device and the detecting cloud platform are connected in sequence. The walking driving module is arranged on the upper part of the trolley body and in rolling contact to the upper part of thetrack across the sliding contact wire track, the guide module is arranged on the upper surface of the trolley body and in rolling contact to the side of the track across the sliding contact wire track, and the moving power-taking module is connected with the guide module and extends into the sliding contact wire track to collect power. By arranging a sliding contact wire outside, the sliding contact wire is miniaturized, and each modular structure makes the installation and disassembly convenient and fast; and through the arrangement of the adjustable moving power-taking module being matched with the guide module and the walking driving module, the structure is compact, the overall size is reduced, the light weight is realized, and the installation, disassembly and maintenance are convenient.
Owner:福建省海峡智汇科技有限公司

Powder brushing machine

PendingCN110523671AClean working environmentFacilitate daily inspection and maintenanceDirt cleaningCleaning using toolsWork in processEngineering
The invention discloses a powder brushing machine. The machine comprises an even number of sections of conveying belts which are arranged in a way of being successively reduced in a stepped manner andused for conveying semi-finished ceramic wafers, a cleaning mechanism which is arranged above the conveying belts and used for conducting powder brushing and cleaning on semi-finished ceramic waferson the conveying belts, a dust suction pipeline which is connected with the cleaning mechanism and externally connected with a dust removal mechanism, and a turnover mechanism which is arranged between the conveying belts at the two ends and used for turning over the semi-finished ceramic wafers. When semi-finished ceramic wafers are conveyed on the conveying belts, the cleaning mechanism brushespowder on the front faces of the odd number of sections of conveying belts, and the cleaning mechanism brushes powder on the back face of the even number of sections of conveying belts. Dust on the upper faces and the lower faces of semi-finished ceramic wafers can be brushed away well, and the qualified ceramic wafer can be sintered conveniently in the follow-up process; in addition, dust can bewell collected, the overall working environment is clean and tidy, and daily inspection and maintenance of workers are facilitated.
Owner:ZHEJIANG SEOKHO ROBOT TECH CO LTD +1

Ground driving device with hydraulic, speed-limiting and temperature-control reverse rotation preventing function

The invention provides a ground driving device with a hydraulic, speed-limiting and temperature-control reverse rotation preventing function and relates to a screw pump ground driving device used in an oil field. The ground driving device with the hydraulic, speed-limiting and temperature-control reverse rotation preventing function is designed mainly for solving the problem that an existing screw pump driving device has potential safety hazard. The ground driving device with the hydraulic, speed-limiting and temperature-control reverse rotation preventing function comprises a reduction gearbox, a vertical shaft, a big belt wheel, a gear pump and a hydraulic oil tank. The gear pump is connected with a brake caliper through an oil pipe. A brake disc is mounted at the top of the vertical shaft. An upper friction block and a lower friction block are mounted on the brake caliper. The brake caliper communicates with an upper hydraulic cavity and a lower hydraulic cavity through pipelines. A bevel gear shell of a brake hub is fixed to the reduction gearbox. A ratchet wheel sleeve of a pawl type centrifugal overrun clutch is arranged on the bevel gear shell. A brake disc is mounted on the ratchet wheel sleeve. A small belt wheel fixed to the brake disc is connected with a belt wheel on the gear pump through a belt. A pawl is mounted on the brake disc. The rear ends of two brake shoes are hinged together. The front end of one brake shoe is mounted on the brake disc. The front ends of the two brake shoes are connected through a spring. Brake pads are arranged on the brake shoes. The ground driving device with the hydraulic, speed-limiting and temperature-control reverse rotation preventing function has the advantage of being high in safety.
Owner:FUTAI GASOLINEEUM MACHINOFACTURE LIAONING PROV

Air cooler capable of accelerating cooling effect

The invention provides an air cooler capable of accelerating the cooling effect, and relates to the technical field of air cooler equipment. The air cooler capable of accelerating the cooling effect comprises stainless steel supporting frames, supporting steel plates are fixedly connected to the centers of the peripheral sides of the stainless steel supporting frames, evaporation wall systems corresponding to the supporting steel plates are arranged at the centers of the peripheral sides of the stainless steel supporting frame, water feeding systems are installed at the tops of the multiple evaporation wall systems, water return systems corresponding to the water feeding systems are arranged at the bottoms of the multiple evaporation wall systems, metal wind shields are installed in the centers of the tops of the stainless steel supporting frames, and cold air systems corresponding to the evaporation wall systems are installed on the two sides of the centers of the metal wind shields.By using a evaporation precooler, air flows to finned pipes after being purified, so that corrosion and scaling of the finned pipes are effectively relieved, the finned pipes are protected, the service cycle of air cooling is prolonged, and the safety and reliability of operation are improved.
Owner:中冷(无锡)工程机械设备有限公司

Primary frequency regulation system and control method of energy storage hydraulic type wind power generating set

The invention discloses a primary frequency regulation system of an energy-storage hydraulic-type wind generating set and a control method. The primary frequency regulation system comprises a wind wheel, couplers, a fixed displacement pump, a motor, a proportional throttle valve, overflow valves, a one-way valve, a hydraulic oil tank, a variable displacement motor, a hydraulic accumulator subsystem, a safety valve set of the hydraulic accumulator subsystem, an excitation synchronous generator, a grid-connected cabinet, a primary frequency regulation controller, a pressure sensor, a flow sensor, a rotating speed torque sensor and a hydraulic pipe. The control method includes the steps that in the unit operation process, for instant dynamic fluctuation of power network frequency, dynamic balance of the output frequency of the hydraulic-type wind generating set is achieved through a hydraulic motor energy-storage subsystem. According to the primary frequency regulation system of the energy-storage hydraulic-type wind generating set and the control method, in the unit operation process, compared with inertia energy storage of a wind machine, the hydraulic accumulator subsystem stores more energy, bears power network frequency fluctuation with the larger range, and furthest keeps unit-grid-connection stable operation.
Owner:YANSHAN UNIV

Current transformer support frame

The invention discloses a current transformer supporting frame, and the frame comprises a transformer; a high-voltage binding post and a low-voltage binding post are arranged at the top of the transformer, and a mutual inductance mechanism is installed on the right side of the top of the transformer. The mutual inductance mechanism comprises a support, a supporting rod, a transformer box and a transformer, and the left side of the support is clamped to a protrusion on the right side of the top of the transformer; bolts are installed at the upper end and the lower end of the left side of the support and are in threaded connection with the left side of the support, an installation base is fixedly connected to the top of the support, and a top transformer box of the installation base is movably installed at the top of the installation base. The three mutual inductors are installed on a fan-shaped sliding rail II, the three mutual inductors form a fan shape, and therefore wires can easilypenetrate through and be easily wired, the mutual inductor box is installed on the installation base, the installation base is fixedly connected to the support, the support is tightly connected to theprotrusion on the right side of the transformer through bolts, and the mutual inductor box is not prone to loosening.
Owner:GUIZHOU POWER GRID CO LTD

Switch cabinet local discharge detecting instrument based on ultrahigh frequency antenna sensor

The invention discloses a switch cabinet local discharge detecting instrument based on an ultrahigh frequency antenna sensor. The switch cabinet local discharge detecting instrument comprises the ultrahigh frequency antenna sensor with the frequency band ranging from 500MHz to 1.5GHz, a data line and a detecting device. The ultrahigh frequency antenna sensor is connected with the detecting device through a cable. The detecting device comprises a signal reasoning unit, a data collecting card, an ARM single-chip microcomputer, a printer and a touch screen, wherein the ARM single-chip microcomputer is connected with the printer and the touch screen, and the signal reasoning unit comprises a band-pass filter, a signal amplifier and a pulse stretcher. The switch cabinet local discharge detecting instrument has the advantages that the ultrahigh frequency local discharge signals generated by a switch cabinet can be effectively detected and analyzed on site, whether local discharge occurs in the switch cabinet or not can be judged, qualitative estimation of local discharge intensity can be performed, and the instrument is low in cost, compact in structure, convenient to carry during detection, high in sensitivity and signal to noise ratio, high in work efficiency, and convenient for the staff in daily detection.
Owner:CORTOI GIS TECH CHENGDU

Portable high-precision rotatable spark erosion perforating machine

InactiveCN105312700AStable supportOvercome the problem of only vertical machining of componentsFeeding apparatusLarge fixed membersElectricityElectrical control
The invention discloses a portable high-precision rotatable spark erosion perforating machine. The portable high-precision rotatable spark erosion perforating machine comprises a main machine and an electric control box. The electric control box is electrically connected with the main machine and is used for controlling the main machine to work. The main machine comprises a base, a rotary lifting mechanism and a machine head. The height and the rotary angle of the machine head are controlled through the rotary lifting mechanism. The electric control box comprises a box body outer shell, a box frame, a middle partition plate, a bottom plate, an accessory box and a lifting handle. The accessory box is arranged on the lower half portion of the internal space of the control box and is used for loading all parts of the spark erosion perforating machine after the spark erosion perforating machine is disassembled. The spark erosion perforating machine has the advantages of being low in cost, small in size, light in weight, easy to operate and easy to carry, and the daily inspection and maintenance are easy due to the design of the electric control box. Matching parts and components are provided with fixed positions and packaging containers, so that clear installation orders are easy to arrange, and collision, damage and loss of the spark erosion perforating machine in the transportation process can be avoided.
Owner:王友谦

Power line laying detachable type wiring device

The invention discloses a power line laying detachable type wiring device, the cross section of which is in the shape of a quadrangle. The wiring device is constituted by a bottom plate, side plates, a supporting rack, a cover plate, and a baffle plate. The bottom plate is provided with transmitting holes, and the lower surface is provided with at least two supporting blocks, and the upper surface of the cover plate is uniformly provided with diversion grooves, and in addition, the baffle plate is additionally provided with wire penetrating holes. The outer surfaces of the side plates are respectively provided with at least one conveying grooves, and at least one supporting rack is disposed on the inner surfaces of the side plates, and each supporting rack is constituted by at least two supporting plates, each of which is constituted by a carrying plate and a connecting plate, and the carrying plate and the connecting plate are connected together by a reinforced rib plate. Compared to the conventional wire trench used for the wire arranging, the structure is simple, and the use is flexible and convenient, and the site adaptability is strong; the constriction costs are low, the construction strength is low, and the construction efficiency is high; the wire working environment can be greatly improved, and the daily inspection or the replacement of the power wire can be facilitated; and the wiring device is widely used for various power wire arranging occasions.
Owner:STATE GRID CORP OF CHINA +1

Self-triggering fireproof rolling shutter door with good safety

The invention relates to the technical field of rolling shutter doors, and discloses a self-triggering fireproof rolling shutter door with good safety. The self-triggering fireproof rolling shutter door with good safety comprises a top box. The inner top wall of the top box is fixedly connected with a water tank, and the bottom of the water tank is movably connected with a T-shaped plate. A springbox is fixedly connected to the bottom of the top box. A spring I is fixedly connected to the inner bottom wall of the spring box. A spray head is fixedly connected to the bottom of the top box. A vertical plate is fixedly connected to the bottom of the top box. The self-triggering fire-proof rolling shutter door with good safety is provided with a folding tooth plate and a folding plate on the side surface of a rolling shutter door body. When a fire occurs, a fuse body is blown and causes a motor to drive the rolling shutter door body to descend, and a vertical gear rotates during the descending process and drives a reel to rotate, so that a rope is retracted inside the reel, and the T-shaped plate is pulled to move downwards, making the water spraying from the water tank through the spray head, so as to extinguish fire and cool the rolling shutter door body, prevent the damage of the rolling shutter door body, and achieve the effect of protection of the rolling shutter door body.
Owner:山东霍曼德安防科技有限公司

Comprehensive system suitable for full underground water plant

PendingCN111636727AReduce in quantityOptimize the air supply and exhaust systemSewerage structuresFire rescueLight transmissionWater treatment
The invention provides a comprehensive system suitable for a full underground water plant. The comprehensive system comprises a sunken square and a plurality of water plant subareas, and each water plant subarea communicates with the sunken square; the sunken square is provided with a light transmission system, a ventilation system and a water dredging system; and the light transmission system isarranged at the top of the sunken square, the water dredging system is arranged along the circumferential direction of the sunken square, and the ventilation system enables outside air to be supplemented to the water plant subareas through the sunken square. According to the comprehensive system suitable for the full underground water plant, the sunken square is additionally arranged, and a watertank is organically combined with the full underground water plant to form an organic ecological complex, so that the number of floor staircases is effectively reduced by about 50%, the number of airshafts is reduced, the construction cost is greatly reduced, the construction space is saved, an air supply and exhaust system is optimized, integrated layout of ground landscape is achieved, and thelandscape effect is significantly improved.
Owner:北京信通碧水再生水有限公司 +1

Electro-hydraulic multi-lobe grab polygonal center cylinder

The invention provides a polygonal central cylinder of a power-driven hydraulic orange-peel bucket. The polygonal central cylinder comprises a central cylinder body which is polygonal, the polygonal cylinder body comprises an upper cylinder body and a lower cylinder body, longitudinal reinforcing rib plates are arranged on the edges of the upper cylinder body and the lower cylinder body, the upper cylinder body is an upwards-open cylinder body, the upper cylinder body is provided with a motor and a control valve block of a hydraulic system of the motor, the lower cylinder body is an oil tank and provided with an oil pump and a coupling, a rectangular hole is longitudinally formed between each set of reinforcing rib plates on the upper cylinder body, and each rectangular hole is provided with a steel shutter. By means of the polygonal central cylinder, the problem of heat dissipation affecting production due to too high oil temperature of the bucket when the environmental temperature is high is solved, and meanwhile routine inspection and maintenance of the bucket are facilitated. Under the condition that the volume of the oil tank is constant, the heat dissipation surface area of the polygonal oil tank is larger than that of a cylindrical oil tank, the open type upper cylinder body facilitates heat dissipation of the motor, and meanwhile inspection and maintenance of the hydraulic control block are facilitated.
Owner:上海佩纳沙士吉打机械有限公司

Built-in axle box mechanism for axle box built-in bogies

The invention discloses a built-in axle box mechanism for a bogie with built-in axle boxes and belongs to the field of axle boxes for bogies of railway vehicles with axle boxes on the inner sides of wheel sets and auxiliary damping positioning devices of the axle boxes. The built-in axle box mechanism comprises a trapezoidal axle box, two ridged rubber spring pieces, a positioning towing bar, twospring piece positioning clips and a semicircular axle box collision-proof gasket. The built-in axle box mechanism has the advantages that with the ridged rubber spring pieces compared with traditional cone metal rubber springs featuring vertical bearing, the built-in axle box mechanism can obtain extremely high longitudinal stiffness while low vertical stiffness is guaranteed, so that high-speedstability of the vehicles is gained; the axle box mechanism is capable of preventing axial movement of the ridged rubber spring pieces effectively and substituting for previous additional axle box protective covers, and accordingly daily inspection of bearings is facilitated; a minimal curve passing radius of the bogie with the built-in axle box mechanism is decreased from at least 100 meters to at least 36 meters remarkably, so that turning maneuverability and flexibility of the novel bogie are improved substantially.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD

10KV high-voltage switch cabinet with secondary cable chamber at top

The invention discloses a 10KV high-voltage switch cabinet with a secondary cable chamber at the top. According to the 10KV high-voltage switch cabinet, a comprehensive cable chamber consisting of a rear sealing plate, a cover plate (2), a communication grounding bus, an insulator, a partition plate, a cover plate (1), a bus seat, a header plate and a bracket is arranged above a high-voltage switch cabinet instrument chamber; the rear sealing plate, the partition plate and the header plate are connected with an instrument chamber top cover through bolts, the upper portions of the rear sealingplate, the partition plate and the header plate are connected with the cover plate (1) and the cover plate (2), and the partition plate is positioned between the rear sealing plate and the header plate, so that two semi-closed compartments are formed among the rear sealing plate, the partition plate and the header plate; the compartment between the partition plate and the header plate is also usedas a control bus chamber; and the compartment between the rear sealing plate and the partition plate is used as a secondary cable chamber. According to the invention, the influence on the operation of other switch cabinets due to uncovering of the secondary cable trench cover is effectively avoided; and the space of the instrument chamber is enlarged, so that the maintenance of the instrument chamber is convenient.
Owner:LIAONING HUAYE GROUP DEV

Ground drive unit with hydraulic pressure, speed limit, temperature control anti-reverse function

The invention provides a ground driving device with a hydraulic, speed-limiting and temperature-control reverse rotation preventing function and relates to a screw pump ground driving device used in an oil field. The ground driving device with the hydraulic, speed-limiting and temperature-control reverse rotation preventing function is designed mainly for solving the problem that an existing screw pump driving device has potential safety hazard. The ground driving device with the hydraulic, speed-limiting and temperature-control reverse rotation preventing function comprises a reduction gearbox, a vertical shaft, a big belt wheel, a gear pump and a hydraulic oil tank. The gear pump is connected with a brake caliper through an oil pipe. A brake disc is mounted at the top of the vertical shaft. An upper friction block and a lower friction block are mounted on the brake caliper. The brake caliper communicates with an upper hydraulic cavity and a lower hydraulic cavity through pipelines. A bevel gear shell of a brake hub is fixed to the reduction gearbox. A ratchet wheel sleeve of a pawl type centrifugal overrun clutch is arranged on the bevel gear shell. A brake disc is mounted on the ratchet wheel sleeve. A small belt wheel fixed to the brake disc is connected with a belt wheel on the gear pump through a belt. A pawl is mounted on the brake disc. The rear ends of two brake shoes are hinged together. The front end of one brake shoe is mounted on the brake disc. The front ends of the two brake shoes are connected through a spring. Brake pads are arranged on the brake shoes. The ground driving device with the hydraulic, speed-limiting and temperature-control reverse rotation preventing function has the advantage of being high in safety.
Owner:FUTAI GASOLINEEUM MACHINOFACTURE LIAONING PROV
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