360 results about "Sulfur hexafluoride" patented technology

The invention relates to the technical field of optics, in particular to a gas concentration regulation and control interference imaging system applied to shape righting of a nozzle handle, a shape righting tool and a nozzle are prepared, the shape righting tool is provided with a downward pressing mechanism, the downward pressing mechanism is provided with a downward pressing telescopic column for correcting the nozzle handle, and a displacement measurement interferometer system is assembled on the shape righting tool; the displacement measurement interferometer system is provided with a reflecting movable mirror and a beam splitter, and the reflecting movable mirror is mounted on the pressing telescopic column; the displacement measurement interferometer system further comprises an interference light path stroke difference fine tuning system. The interference light path stroke difference fine adjustment system comprises a glass container for containing sulfur hexafluoride, the end faces of the two ends of the glass container are flat and transparent, the glass container is arranged on a light path between the beam splitter and the reflective moving mirror, and the end faces of the two ends of the glass container are perpendicular to laser on the light path; the glass container is provided with an air supply port; the air supply port is connected to an air pump, and the air pump is connected with a sulfur hexafluoride air source. And the shape correcting position of the nozzle handle is accurately controlled.

The sulfur hexafluoride insulation ring main unit comprises a ring main unit power distribution platform, a ring main unit information base, a ring main unit working condition unit, a power distribution interference unit, a ring network distribution unit, a power regulation and control unit and a power distribution management unit. According to the method, power distribution stability performance analysis is carried out from two points of working characteristics and working parameters of the target ring main unit, and analysis is carried out in combination with the sulfur hexafluoride gas interference degree of the target ring main unit, so that the working stability and continuity of the target ring main unit are improved; ring network distribution working performance risk analysis is carried out on the working condition information of the target ring main unit in an information feedback mode, so that the safety and reliability of the power distribution performance of the target ring main unit are improved, and electric power adjustment demand evaluation analysis is carried out on the electric energy management data. Therefore, the load distribution scheme of the target ring main unit is adjusted according to the information feedback condition, and the reasonable distribution of power resources and the operation efficiency of a power grid are improved.

The invention relates to the technical field of switch devices, in particular to a sulfur hexafluoride insulating ring main unit with a test head, which comprises a connecting cabinet fixedly connected to a cabinet body, the connector A is fixedly connected in the connecting cabinet; the mounting plate is fixedly connected in the cabinet body; the connector B is fixedly connected to the cabinet body; the mounting frame is fixedly connected to the mounting plate; the contact A is fixedly connected to the mounting frame; the test cabinet is fixedly connected to the cabinet body; the testing head is fixedly connected to the mounting plate; the contact B is fixedly connected to the mounting frame; the transverse frame is fixedly connected to the mounting plate; the tool apron is fixedly connected to the transverse frame; and the isolation knife is rotationally connected to the knife holder. According to the invention, the test cabinet is arranged inside, and the isolation knife is rotated to realize rapid switch-on and switch-off switching, so that the conventional test of the cable can be carried out without dismounting the cable head, the cable head does not need to be frequently plugged, the loss of related parts is reduced, and the stability of the whole power system is ensured.

The invention relates to the technical field of gas detection, and discloses a high-sensitivity sulfur hexafluoride detection method and a high-sensitivity sulfur hexafluoride detection system based on cooperation of a long-wave infrared absorption spectrum and a thermal infrared spectrum, which are used for solving the problem that water vapor in a detection area affects a sulfur hexafluoride detection result during sulfur hexafluoride detection. The method comprises the following steps: acquiring long-wave infrared absorption spectrum data and environment abnormal data, acquiring an infrared radiation space distribution diagram of a to-be-detected area, acquiring environment humidity and dew point temperature, obtaining initial detection concentration of sulfur hexafluoride according to the long-wave infrared absorption spectrum data, and calculating the concentration of sulfur hexafluoride according to the environment abnormal data, the environment humidity and the dew point temperature. The method comprises the following steps: acquiring an environmental water vapor influence index through evaluation, performing water vapor interference judgment, and if judging that water vapor interference exists in a current detection environment, correcting an initial detection concentration according to the environmental water vapor influence index to obtain an actual detection concentration, thereby effectively improving the accuracy of a sulfur hexafluoride detection result and reducing the problems of missing detection and false detection.

The invention relates to the technical field of data processing, and discloses an intelligent arrangement, storage, tracking, management and control method and system for sulfur hexafluoride gas cylinders. The method comprises the following steps: performing leakage risk assessment through a sulfur hexafluoride concentration sensor and a gas cylinder pressure monitoring device to obtain an environmental risk data set; performing multi-dimensional state sensing on the gas cylinder according to the intelligent label and the inclination angle sensor to obtain a dynamic state information set of the gas cylinder; performing path optimization through a multi-target search algorithm to obtain a multi-target path cost matrix; performing Pareto optimal solution screening through a leading edge set maintenance mechanism to obtain an optimal scheduling path set; and tracking the life cycle of the gas cylinder based on the state machine model to obtain full life cycle tracking data. The problems of intelligent scheduling optimization and full-life-cycle tracking management and control under the multi-target constraint condition in sulfur hexafluoride gas cylinder storage management are solved.

The invention discloses a micropore-rich carbon adsorbent and application thereof in separation of mixed gas of sulfur hexafluoride and nitrogen, and the micropore-rich carbon adsorbent is prepared by taking cellulose acetate as a precursor, performing low-temperature pre-carbonization treatment in an inert atmosphere, mixing with KOH, performing high-temperature activation in the inert atmosphere, and finally washing and drying. The carbon adsorbent prepared by a unique two-step method of low-temperature pre-carbonization and high-temperature activation has an extremely high specific surface area (1100-1700m < 2 > / g) and a pore channel structure mainly comprising micropores (the pore diameter is concentrated in 0.5-0.8 nm). The adsorbent shows ultrahigh adsorption capacity (the adsorption capacity can reach 2.83 mmol / g at the temperature of 25 DEG C and the pressure of 0.1 bar) on SF6. The carbon adsorbent disclosed by the invention is simple in preparation method, low in raw material cost and environment-friendly, and has a wide application prospect in the field of SF6 recovery and purification.

The invention relates to the technical field of welding, in particular to an optical detection system for gas components in a stabilizer welding tool, a welding tool box and a gas adding system are prepared, and an upper plate of the welding tool box is provided with an operation window; the welding tool box is provided with a glass window; the gas component detection system comprises a beam splitter and a movable reflecting mirror, and a light path between the beam splitter and the movable reflecting mirror penetrates through the glass window; a metal net cylinder is arranged between the opposite glass windows of the welding tool box; a light path penetrates through the hollow part of the metal net cylinder; the gas component detection system further comprises an interference path stroke difference adjusting system; the interference path stroke difference adjusting system comprises a glass container, and the glass container is arranged on a light path between the beam splitter and the movable reflector; the interference path stroke difference adjusting system further comprises an air pump, and the air pump is connected with a sulfur hexafluoride gas source. Therefore, the stability of argon in the welding tool box is ensured, and the welding quality of the stabilizer is improved.

This invention relates to a sampling device and method for sulfur hexafluoride (SF6) and its mixed gases used in electrical equipment. The sampling device includes an equipment connection module, a sampling module, a gas filling module, and a vacuuming module. The equipment connection module, used to connect the electrical equipment and the gas sampler, consists of an equipment connection valve, a diaphragm pump, and corresponding pipelines. The sampling module, used for gas buffering, consists of a sampling cylinder, a pressure detection unit, a sampling valve, a gas filling valve, a tail gas valve, and corresponding pipelines. The gas filling module, used to fill the sampling container, consists of a booster pump, a sampling container connection valve, and corresponding pipelines. The vacuuming module, used for vacuuming and tail gas collection, consists of a vacuum pump, a tail gas collection device, and its connection valves. The sampling method utilizes appropriate flushing and vacuuming methods when the gas pressure is higher or lower than 0.2 MPa. This sampling device and method can improve the accuracy of sampling sulfur hexafluoride gas or sulfur hexafluoride mixed insulating gases.

The invention relates to the technical field of transformer substation sulfur hexafluoride monitoring, in particular to a sulfur hexafluoride monitoring system for a transformer substation, which comprises a detection module, a signal processing unit, a communication interface module, an alarm device and a power management module. The detection module is integrated with various sensors, so that the concentration of sulfur hexafluoride and environmental parameters can be acquired at high precision; the signal processing unit has the functions of data normalization, abnormal value elimination, leakage positioning and trend prediction; the communication interface module supports multi-mode wireless transmission and data encryption; the alarm device provides multi-stage alarm signals; and the power management module adopts a dual-power-supply framework and is integrated with a protection circuit. The system improves the complex environment adaptability through the modular design, has the characteristics of high sensitivity, strong data processing capability and rapid maintenance, and is suitable for real-time monitoring and safety management of sulfur hexafluoride in a transformer substation and other scenes.

A coated optical component includes an optical component and a conformal coating. The optical component is crystalline calcium fluoride and the conformal coating is an atomic layer deposition (ALD) coating in contact with a surface of the optical component. The ALD coating includes a metal fluoride ALD coating having a metal different from calcium. The ALD coating can include other metal oxide or metalloid oxide ALD coating layers. The method for making the coated optical component includes depositing an atomic layer deposition (ALD) coating on a surface of the optical component, where the ALD coating can be a metalloid oxide, a metal oxide, a metal fluoride having a metal that is different from calcium, or combinations of these. Sulfur hexafluoride is used as a fluorine source in the ALD process.

The invention relates to the technical field of gas leakage monitoring, and discloses a sulfur hexafluoride gas leakage monitoring system based on Internet of Things, comprising: a sulfur hexafluoride acquisition module for acquiring sulfur hexafluoride gas concentration data in real time; the oxygen content monitoring module is used for monitoring the oxygen content in the environment in real time; the Internet of Things communication module is used for transmitting the detected data to a monitoring center in real time; the monitoring center is used for receiving the data and realizing real-time monitoring on the leakage condition of the sulfur hexafluoride gas; the alarm module is used for giving an alarm when the gas concentration reaches a threshold value and realizing a sound-light alarm function through an alarm device; the fan control module is used for starting a fan to discharge gas after receiving the alarm signal so as to realize automatic ventilation; and the voice prompt module is used for reminding field personnel to pay attention to safety. Through intelligent monitoring and linkage control, the safety risk caused by gas leakage is reduced, and the safety of personnel and equipment is protected.

The invention belongs to the technical field of sodium ion battery positive electrode materials, and relates to a gas-liquid mixture source plasma constructed high-capacity interface dual-modified sodium ferric pyrophosphate composite positive electrode material and a preparation method and application thereof. The preparation method comprises the following steps: taking sodium ferric phosphate pyrophosphate as a matrix, taking sulfur hexafluoride as a gas source, introducing a liquid source, and carrying out fluorine and sulfur element synergistic doping modification and surface carbon layer coating on sodium ferric phosphate pyrophosphate by utilizing a plasma technology to obtain the sodium ferric phosphate pyrophosphate composite positive electrode material. The composite positive electrode material shows excellent sodium storage cycle stability and rate capability, and has a wide market application prospect. Meanwhile, the preparation method provided by the invention is simple, rapid, efficient and convenient, is easy to control, and contributes to promoting the development and application of the high-performance sodium-ion battery positive electrode material.

The invention relates to the technical field of gas detection, in particular to a sulfur hexafluoride quantitative detection system which comprises a shell and a sulfur hexafluoride sensor arranged in the shell, a gas inlet channel for injecting gas to be detected is arranged in the shell, and a centrifugal gas pump is arranged in the gas inlet channel; the sulfur hexafluoride sensor is wrapped with an elastic air bag; the air inlet is formed in the lower end of the shell; the shell is provided with an annular surface above the air inlet; the centrifugal air pump comprises a motor system; the motor system comprises a motor shell, a stator and a rotor; the stator is arranged in the motor shell; a supporting bearing used for supporting the weight of the rotor is arranged between the rotor and the motor shell, and a base used for fixing the motor and vertically placing the motor is arranged below the motor shell; the supporting bearing is a magnetic supporting bearing, the magnetic supporting bearing comprises two repellent magnets, one magnet is located at the bottom, and the other magnet is a permanent magnet which is located above the magnet and fixed to the rotor shaft. The measurement fluctuation is reduced, and the accuracy of sulfur hexafluoride detection is improved.

The invention belongs to the technical field of metallurgy, and relates to a complex gold concentrate multi-element comprehensive recovery method which comprises the following steps: S1, complex gold concentrate and auxiliary materials are subjected to bottom blowing smelting in an oxygen-enriched air atmosphere to obtain matte, bottom slag and flue gas; s2, copper matte and auxiliary materials are subjected to top-blowing converting in the air atmosphere, and crude copper, flue gas and converting slag are obtained; and S3, the crude copper and carbonate are refined in the air atmosphere, after refining is finished, sulfur hexafluoride gas is introduced for a reaction in the air atmosphere, methane gas is introduced for reduction in the inert atmosphere after the reaction is finished, and the copper anode plate is obtained. According to the method, arsenic, antimony and bismuth in the crude copper are removed through two-step oxidation and impurity removal, and the phenomenon that arsenic, antimony and bismuth elements in the complex gold concentrate are enriched in the copper anode plate along with smelting and refining, and consequently the copper anode plate is passivated in the subsequent electrolysis process is avoided; and the recovery method is simple in process and high in recovery rate.

The invention discloses a GIS equipment SF6 micro-water density lightweight online monitoring method based on double threshold triggering, and relates to the field of power equipment.The method comprises the steps that on the basis of a fusion mechanism of nonlinear drift characteristics and historical calibration parameters, sensor coefficients are calibrated; synchronously acquiring partial discharge and sulfur hexafluoride micro-water signals through a sensor; the method comprises the following steps: pre-screening abnormal data segments in partial discharge and sulfur hexafluoride micro-water signals through double thresholds of amplitude and time, and extracting alignment time marks and frequency domain energy, pulse density and micro-water slope features to obtain normalized features; inputting the normalized features into a classifier, and outputting the fault type and confidence of the gas insulated switchgear; and generating a maintenance and replacement instruction of the gas insulated switchgear according to the fault type and the confidence coefficient. According to the invention, through fusion of the high-precision capacitive humidity sensing network and the intelligent diagnosis algorithm, real-time sensing and risk early warning of the health state of the air chamber are realized.

The invention discloses a fault diagnosis method for a gas-insulated metal-enclosed switchgear, and particularly relates to the technical field of fault diagnosis. Abnormal hot area distribution and structural deformation characteristics of equipment are analyzed through infrared thermal imaging data and visible light image data, an image analysis result is generated, whether gas leakage exists in the equipment or not is judged based on sulfur hexafluoride gas density data, and a gas analysis result is output; judging whether the equipment has abnormal vibration based on the vibration signal data, and outputting a vibration analysis result; based on an image analysis result and a gas and vibration analysis result, establishing a fault association relationship, generating a comprehensive diagnosis result, and determining a fault type and a risk level; in combination with a control rule base, a control signal or an operation and maintenance execution instruction is generated, and cross-modal synchronous diagnosis and accuracy and response real-time performance of fault diagnosis of the gas-insulated metal-enclosed switchgear are realized.

The invention discloses an automatic heating device for preventing a sealing gasket of sulfur hexafluoride electrical equipment from cracking at low temperature, which relates to the technical field of insulating gas electrical equipment heating and comprises a temperature sensor, a heat tracing band, a heat insulation film, a heating controller and a temperature data collector. The flange joint of the sulfur hexafluoride electrical equipment is wrapped with a heat insulation film and a heat tracing band, a temperature sensor is arranged in an inner cavity of the automatic heating device, the heat tracing band is electrically connected with a heating controller, the temperature sensor is connected with a temperature controller, and the heating controller and the temperature controller are controlled by a heating temperature control automatic controller; the connecting flange part of the sulfur hexafluoride electrical equipment is wrapped by the automatic heating device, and the heating and temperature control process is automatically operated, so that the low-temperature cracking of a sealing gasket at the flange of the sulfur hexafluoride electrical equipment is avoided, the gas leakage phenomenon in the sulfur hexafluoride electrical equipment is avoided, the potential safety hazard of the equipment is eliminated, and the safety of the equipment is improved. And workers only need to inspect regularly, so that the workload of the workers is greatly reduced.

The invention provides an SF6 gas monitoring data analysis system and method and a computer storage medium. The SF6 gas monitoring data analysis system comprises edge computing equipment and n SF6 micro-water density sensors arranged at n preset positions of power equipment, the n SF6 micro-water density sensors acquire sensor data of n preset positions in a preset time period to obtain n groups of sensor data sets, and the n groups of sensor data sets are transmitted to the edge computing device; each sensor data set comprises a plurality of sensor data; the edge computing device determines n abnormal fitting straight lines at preset positions according to the n groups of sensor data sets to obtain n abnormal fitting straight lines; determining n abnormal moments according to the n abnormal fitting straight lines, wherein an abnormal degree value corresponding to each abnormal moment is a preset value; and performing early warning processing operation according to the n abnormal moments. By adopting the embodiment of the invention, the sulfur hexafluoride gas leakage monitoring intelligence can be improved.

The invention belongs to the technical field of power distribution boxes, and particularly relates to a suspension type anti-creeping intelligent power distribution box and a using method thereof.The suspension type anti-creeping intelligent power distribution box comprises a cabinet body, a cabinet door and electrical elements arranged in the cabinet body, suspension feet are fixedly arranged on the two sides of the top and the two sides of the bottom of the cabinet body, and the suspension type anti-creeping intelligent power distribution box further comprises a hollow air suction plate fixedly arranged on the outer side face of the cabinet door; and a plurality of air suction cavities which are uniformly distributed are formed in the cabinet door. The temperature is accurately monitored through the thermistor, heat dissipation is intelligently regulated and controlled in combination with the gas flow adjusting mechanism, and efficient heat dissipation and energy saving are achieved; meanwhile, if the temperature of a local circuit is sharply increased, cooling can be quickly responded, the electric leakage condition is effectively avoided, and maintenance is reminded; in addition, the sulfur hexafluoride gas injection mechanism can be used for emergently cooling, so that faults are restrained; in addition, the exhausted hot air can ensure that the suspension legs are stable in a low-temperature environment, and the safety, the stability and the economical efficiency of the distribution box are integrally improved.

The invention discloses a sulfur hexafluoride non-dispersive infrared spectrum detection device which comprises a shell, a sample gas chamber is arranged in the shell, an infrared source is arranged on one side of the sample gas chamber, light holes are formed in the two sides of the sample gas chamber at equal intervals, and infrared detectors are arranged on the side, away from the infrared source, of the sample gas chamber at equal intervals. The invention relates to the technical field of gas detection, through the cooperation of the shell, the sample gas chamber, the infrared source, the light hole, the wavelength filter, the infrared detector, the gas guide structure, the sealing structure and the gas supply monitoring assembly, the sealing structure is used for sealing the light hole of the sample gas chamber and filtering the sample gas, so that dust and other impurities are prevented from being sucked into the sample gas chamber, and the detection efficiency is improved. The sulfur hexafluoride detection device has the advantages that the sample gas is collected, the conveying state of the sample gas is monitored, the stable conveying of the sample gas is ensured, the accuracy and stability of a detection result are improved, the service life of the detection device is prolonged, the interference of an external environment on the detection result is effectively avoided, and the sulfur hexafluoride detection device has wide applicability in a severe environment.

The embodiment of the invention discloses a method, a device and a system for identifying abnormal discharge of a sulfur hexafluoride circuit breaker. The method comprises the following steps of: receiving a gas pressure data sequence of the sulfur hexafluoride circuit breaker, which is acquired and uploaded by a sulfur hexafluoride density relay in real time; drawing a gas pressure time curve of the sulfur hexafluoride circuit breaker according to the gas pressure data sequence; determining a communication mode of performing data communication with the sulfur hexafluoride density relay at the current moment, and obtaining a curve change extreme value of the gas pressure time curve based on the communication mode; and comparing the curve change extreme value with a preset pressure change threshold value, and when the curve change extreme value is greater than the preset pressure change threshold value, judging that abnormal discharge exists in the sulfur hexafluoride circuit breaker. Whether abnormal discharge occurs in the sulfur hexafluoride circuit breaker or not is judged by monitoring the gas pressure sudden increase phenomenon during arc discharge in the sulfur hexafluoride circuit breaker, and the problem that a mechanical density relay cannot monitor an abnormal discharge event in the circuit breaker is solved.

The invention relates to the technical field of heat treatment, in particular to a workpiece carburizing process for introducing gas to adjust an interference image system, which comprises a carburizing furnace, and two opposite glass windows are arranged on two opposite side walls of the carburizing furnace; the interferometer system is provided with a beam splitter and a reflecting mirror, and a light path between the beam splitter and the reflecting mirror penetrates through the two glass windows; the interferometer system further comprises an interference light path stroke difference fine tuning system. The interference light path stroke difference fine tuning system comprises a glass container for accommodating sulfur hexafluoride, two ends of the glass container are flat and transparent, and the glass container is arranged on a light path between the beam splitter and the reflector; the interference light path stroke difference fine adjustment system further comprises an air pump for adjusting the air pressure in the glass container, and the air pump is connected with a sulfur hexafluoride gas source; the acetylene concentration change can be measured more accurately, the acetylene concentration controlled by the gas adding system and the gas exchange system is more accurate, the acetylene gas composition in the carburizing furnace is more stable, and the workpiece carburizing quality is improved.

The invention relates to the technical field of sulfur hexafluoride gas pressure monitoring, in particular to a GIS sulfur hexafluoride gas pressure data online monitoring system which comprises a plurality of wireless visual recognition sensors, an edge computing gateway, a displayer and a station end intelligent auxiliary platform. The plurality of wireless visual identification sensors are respectively in communication connection with the edge computing gateway, the station end intelligent auxiliary platform is in communication connection with the edge computing gateway through a web, and the display is connected with the station end intelligent auxiliary platform. The plurality of wireless visual identification sensors are respectively and fixedly arranged on a dial plate of the sulfur hexafluoride density relay so as to acquire an image of the dial plate, and the edge computing gateway analyzes the acquired dial plate image, identifies current gas pressure data of sulfur hexafluoride and sends the current gas pressure data to the wireless visual identification sensors. And the station end intelligent auxiliary platform reads the gas pressure data of sulfur hexafluoride, performs recording and trend analysis, and solves the leakage trend and the annual leakage rate of the sulfur hexafluoride gas.

The invention relates to the technical field of image processing, and discloses a sulfur hexafluoride ring main unit gas leakage detection method and system based on thermal imaging, and the method comprises the steps: obtaining an infrared thermal imaging multispectral sequence image of a ring main unit; identifying a plurality of candidate regions of the multispectral sequence image, selecting a gas reference region, and calculating an average multispectral vector of the gas reference region as a gas reference spectrum; calculating the intra-group variance of each spectrum channel, and determining a weight vector and an angle threshold value; calculating a weighted spectral angle between the multispectral vector of the pixel point to be detected and the gas reference spectrum; judging the to-be-detected pixel point which simultaneously meets the following conditions as a gas leakage point: the weighted spectral angle is smaller than an angle threshold value, and the temperature of the to-be-detected pixel point is lower than a preset temperature threshold value; and generating a visual image of the gas leakage area according to all the judged gas leakage points. According to the invention, the anti-interference capability of detection is improved, and reliable identification of sulfur hexafluoride gas leakage can be realized under a complex background.

The invention discloses a high-voltage on-load tap switching device, and relates to the technical field of tap switches, and the device comprises a switching mechanism which is used for completing the slitting processing of a high voltage; the driving mechanism provides power for switching of the switching mechanism; according to the invention, through the linkage of the driving mechanism and the recovery mechanism, before the first moving contact is switched, the second moving contact is separated from the second static contact to generate an electric arc, the pressure storage pump is synchronously triggered to release sulfur hexafluoride gas for arc extinguishing, the electric arc is rapidly extinguished by using the characteristics of cooling, deionization and blocking reignition, an arc-free environment is created for the high-voltage switching of the first moving contact, and the high-voltage switching of the first moving contact is realized. After arc extinguishing, a negative pressure pump is triggered through meshing transmission of an inner gear and a rack, sulfur hexafluoride gas in a left cavity is sucked into a recovery tank, rapid gas recovery is achieved, economic losses caused by gas waste are reduced, meanwhile, the risk of equipment aging is reduced, and the service life of equipment is prolonged. The service life of equipment is prolonged.

The invention discloses a sulfur hexafluoride leakage detection method based on cooperation of long-wave infrared and thermal infrared spectrums, the sulfur hexafluoride leakage detection method is applied to a sulfur hexafluoride leakage detection device, and the sulfur hexafluoride leakage detection method comprises the following steps: carrying out calibration and parameter configuration on the sulfur hexafluoride leakage detection device; long-wave infrared spectrum and thermal infrared temperature field data are synchronously collected, preprocessing and time-space matching are carried out on the long-wave infrared spectrum and the thermal infrared temperature field data, leakage identification parameters are obtained, the thermal infrared temperature field data are temperature values of pixel points of a temperature field image, parameter calculation and risk early warning are carried out on the leakage identification parameters, and the leakage identification result is obtained. And obtaining a detection report. According to the invention, the sensitivity and accuracy of sulfur hexafluoride leakage detection can be improved.

The invention discloses a gradient fluorination and drying method for a high-voltage direct-current wall bushing, which comprises the following steps of: controlling the volume ratio of fluorine gas to inert gas and fluorination pressure to finish gradient fluorination on the inner wall of epoxy resin of the wall bushing in an early stage, a middle stage and a later stage, then performing gradient drying in three stages, and pre-assembling with a dried metal part, thereby obtaining the high-voltage direct-current wall bushing. And after the pre-assembly is completed, hot air drying is performed, and SF6 (sulfur hexafluoride) gas is filled for packaging, so that the high-voltage direct-current wall bushing with improved performance is obtained. The method effectively solves the problem of DC breakdown voltage drop caused by charge accumulation and electric field distortion in long-term operation of the high-voltage DC wall bushing, and can solve the problem of construction of a uniform and compact fluorination reaction layer on the inner wall of the bushing, and solve the problem of large thickness uniformity deviation of the fluorination inner wall. The insulation performance of the high-voltage direct-current wall bushing is remarkably enhanced, and powerful technical support is provided for application of a fluorination technology in the field of insulation optimization of power equipment.

The application discloses a high-voltage load-tap switching device and relates to the technical field of tap switches. The high-voltage load-tap switching device comprises a switching mechanism, a driving mechanism and a recovery mechanism. The switching mechanism is used for completing tap switching of high voltage. The driving mechanism provides power for switching of the switching mechanism. In the application, the second moving contact is separated from the second static contact to generate an electric arc before the first moving contact is switched, and the arc is extinguished by triggering a pressure accumulator pump to release sulfur hexafluoride gas. The sulfur hexafluoride gas has the characteristics of cooling, ion removal and flameout prevention, and the arc is quickly extinguished to create an arcless environment for high-voltage switching of the first moving contact, thereby avoiding ablation of the contact by the arc and improving the safety of equipment operation. After the arc is extinguished, the negative pressure pump is triggered by meshing transmission of the internal gear and the rack to suck the sulfur hexafluoride gas in the left cavity into the recovery tank, so that the gas is quickly recovered. The economic loss caused by waste of the gas is reduced, the risk of equipment aging is lowered, and the service life of the equipment is prolonged.

The invention discloses an environment-friendly sealed inflatable switch cabinet, which comprises an integrally formed cabinet body and an equipment main body arranged in the cabinet body, the water tank is arranged on one side outside the cabinet body and used for containing water; two cooling mechanisms are arranged between the cabinet bodies, and the two cooling mechanisms are used for cooling the equipment main body in the cabinet body through the water body in the water tank; a first lifter is arranged on the side, facing the water tank, of the cabinet body, is in driving connection with the two cooling mechanisms and is used for driving the two cooling mechanisms to vertically move in the vertical direction; a second lifter and a temperature detector are arranged on the side, facing the cabinet body, of the water tank, the second lifter is in driving connection with the temperature detector, and the second lifter is used for driving the temperature detector to detect temperature data of all preset areas in the cabinet body in the vertical direction. According to the technical scheme, sulfur hexafluoride gas leakage is avoided to the maximum extent from the two aspects of precise cooling and sealing performance improvement.

The invention provides a GCB internal gas detection device, and relates to the technical field of sulfur hexafluoride circuit breaker detection, the GCB internal gas detection device comprises a multifunctional mechanism, a gas purity analyzer body, a gas temporary storage mechanism, a prompt mechanism and a gas purification mechanism; the gas purity analyzer body is mounted on the multifunctional mechanism; the gas temporary storage mechanism is mounted on the multifunctional mechanism; the prompting mechanism is mounted on the gas temporary storage mechanism; the gas purification mechanism is mounted on the front side of the gas temporary storage mechanism; the gas purity analyzer body is located between the buffer frame A and the support frame B, so that collision of the gas purity analyzer body during carrying or transferring is avoided; the problems that after gas detection is completed, the gas purity analyzer is inconvenient to protect, so that the gas purity analyzer is prone to collision during carrying and turnover, and the service life is shortened are solved.