189 results about "Sulfur fluoride" patented technology

The invention discloses a sulfur hexafluoride gas purifying and filtering device, belongs to the technical field of sulfur hexafluoride gas filtering, and aims to solve the problems that the impact force of gas input into a tank body is relatively strong, the filtering efficiency and the filtering effect are relatively poor, and water in gas needs to be transferred to other equipment for treatment when being separated. A filtering mechanism for conveniently filtering gas is arranged in the gas filtering tank, and a water removal mechanism for conveniently separating water contained in the gas is arranged in the gas filtering tank. According to the sulfur hexafluoride gas purifying and filtering device, the air bellow is connected to the inner end of the air inlet pipe arranged above the filtering mechanism, the hedging air pipes are arranged on the two sides of the air bellow, and the air outlet ends of the hedging air pipes are oppositely arranged; therefore, speed reduction of the high-speed gas is achieved through hedging.

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 discloses a 10KV sulfur hexafluoride switch cabinet which comprises a cabinet body, a gas box is arranged in the cabinet body, a mechanism chamber is arranged on the gas box, an electric control chamber is arranged on the mechanism chamber, an operating mechanism is arranged in the mechanism chamber, a three-phase high-voltage switch assembly is arranged in the gas box, and the three-phase high-voltage switch assembly is connected with the operating mechanism. A wire inlet sleeve and a wire outlet sleeve which are matched with each phase of high-voltage switch assembly are arranged on the gas box, the wire inlet sleeve is arranged on the gas box in an inverted mode, a first cylindrical contact is fixedly arranged in the wire inlet sleeve in a sleeved mode, copper-tungsten alloy of a spiral structure is embedded in the inner circumferential wall of the first cylindrical contact, a copper wire inlet rod is vertically inserted in the first cylindrical contact, and a wire outlet rod is arranged on the wire inlet sleeve. A heat dissipation box is arranged at the upper end of the gas box, a pressure relief device is arranged at the upper end of the heat dissipation box, the heat dissipation box and the gas box are internally communicated to form a closed cavity, the closed cavity is filled with sulfur hexafluoride gas, an inflation and measurement integrated pressure gauge is mounted on the gas box, and heat dissipation fins are paved on the outer surfaces of the gas box and the heat dissipation box. The heating value can be reduced, efficient heat dissipation is achieved, and the reliability of the switch cabinet is improved.

The invention discloses an enrichment treatment device for fluorosulfide in a water body, and belongs to the technical field of water sample detection devices. The device provided by the invention can be suitable for sample collection and enrichment of water bodies in different environments such as rivers, lakes, seas and the like; through the adaptation of different pipelines, the device can be combined with an external gas chromatograph for use, so that the enrichment and treatment of trace volatile substances such as trace sulfur hexafluoride and trifluoromethyl sulfur pentafluoride in an environmental water body are realized; according to the device disclosed by the invention, the change of a flow path is realized by switching different valves, the device can realize the enrichment of a water sample in a target concentration range of 10 <-15 >-10 <-9 > mol / L, the enrichment of a trace target object to a trace target object is realized, and the sampling volume can be flexibly adjusted according to actual requirements. The device is simple in structure, convenient to operate and high in adaptability, can meet the detection requirements of different experimental platforms such as ashore and ship, and meets the requirements of different concentration ranges.

A compound has a molecular weight of 500 to 5,000 and is composed of a hydrogen atom, a carbon atom, and a hetero atom. The hetero atom is at least one selected from an oxygen atom, a sulfur atom, a fluorine atom, and a silicon atom, and has one or more alicyclic structures, one or more aromatic ring structures directly bonded to the alicyclic structures, and one or more monovalent substituents Ms directly bonded to the aromatic ring structures. The monovalent substituent Ms is at least one substituent selected from a group containing a monovalent fluorine-containing aliphatic group, a group containing a monovalent sulfur fluoride-containing group, a group containing a monovalent siloxanyl group, and a group containing a monovalent saturated hydrocarbon group.

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 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 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 invention discloses a sulfur hexafluoride degradation catalyst as well as a preparation method and application thereof in catalytic degradation of SF6 (sulfur hexafluoride). The preparation method comprises the following steps: (1) adding pseudo-boehmite and / or cerous nitrate into deionized water to be fully dissolved, and stirring to be in an emulsion or solution state; sequentially adding phosphoric acid, a silicon source and a template agent while stirring, and adjusting the pH value of the mixed solution to 5.0-6.5; (2) stirring and evaporating moisture in the mixed solution obtained in the step (1), and further drying to obtain dry glue; grinding the dry glue, putting the ground dry glue into a crystallization kettle, crystallizing at 200-210 DEG C, washing a crystallized product to be neutral, drying, and calcining to remove the template agent, so as to obtain the Al and / or Ce doped SF6 degradation catalyst. The catalyst is used for catalytic degradation of sulfur hexafluoride and is low in catalytic temperature, excellent in degradation effect, excellent in SO2 selectivity, small in product harm, easy to treat, simple in catalyst preparation process and low in use cost.

A precursor compound and a radioligand for cancer diagnosis and treatment comprises a high-affinity ligand PL for a cancer- associated protein conjugated to a covalent warhead CW for strong or covalent binding to an amino acid sidechain of the cancer-associated protein and a chelator Ch for complexation of a radioisotope or a leaving group LR for substitution with a radioisotope, wherein the covalent warhead CW is configured for quasi-covalent ionic binding using a sulfonic acid group or for covalent binding using a sulfur fluoride exchange (SuFEx) group, a benzotriazole or N-methyl-N- arylmethanesulfonamide leaving group or a malolactone group for strain-release alkylation.

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 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 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 utility model discloses a foldable sulfur hexafluoride inflating and vacuumizing device which comprises a foldable frame and a sulfur hexafluoride inflating and vacuumizing system arranged on the frame, the frame comprises a fixed frame at the lower part and a rotary folding frame at the upper part, and the fixed frame and the rotary folding frame are rotationally connected through a rotary assembly to realize the folding of the rotary folding frame; the fixing clamp assembly is used for fixing the rotary folding frame on the fixing frame; the sulfur hexafluoride inflating and vacuumizing system comprises a sulfur hexafluoride inflating module and a vacuumizing module which are used for inflating the air chamber of the high-voltage switch equipment, and the sulfur hexafluoride inflating and vacuumizing operation is realized. According to the foldable sulfur hexafluoride inflating and vacuumizing device, the vertical height of equipment is reduced, and the phenomenon that parts are damaged due to oil leakage of an important part vacuum pump when the equipment is horizontally placed in a carriage for transportation is avoided.

The present invention discloses a sulfur hexafluoride gas analysis and tail gas recovery system and control method. The system is provided with a first throttle valve and a negative pressure unit. Under the action of a control module, whether pressure fluctuations or airflow fluctuations occur inside a gas analyzer, the fluctuations can be smoothed by adjusting the opening of the first throttle valve and the air pressure of the negative pressure unit. Therefore, the gas analyzer can detect the target gas under stable air pressure and airflow, thereby ensuring the accuracy of the detection.

The embodiment of the invention discloses a sulfur hexafluoride online purification monitoring device, and relates to the technical field of high-voltage and ultrahigh-voltage electrics. The sulfur hexafluoride online purification monitoring device comprises a tank body, a selective permeable membrane and a purification monitoring assembly, the tank body is provided with an inner cavity, the selective permeable membrane is installed in the inner cavity and divides the inner cavity into a high-pressure side chamber and a low-pressure side chamber, the high-pressure side chamber is communicated with sulfur hexafluoride high-voltage electrical equipment, and the low-pressure side chamber is communicated with the purification monitoring assembly; sulfur hexafluoride in the sulfur hexafluoride high-voltage electrical equipment enters the high-voltage side cavity, the selective permeable membrane allows decomposition products of the sulfur hexafluoride and small air molecules to permeate into the low-voltage side cavity, the purification monitoring assembly monitors and purifies gas in the low-voltage side cavity and then discharges the gas, and the sulfur hexafluoride high-voltage electrical equipment does not need to be powered off. Therefore, the continuous operation in the operation state can be realized.

The invention provides a double-fracture disconnecting switch sulfur hexafluoride substitute gas applicability verification method, which comprises the following steps: constructing a physical model of equipment according to the structure and operation characteristics of an on-site double-fracture disconnecting switch GIS, and sequentially performing temperature field simulation on SF6 substitute gases C4F7N and N2 mixed according to different proportions; when a simulation result meets a temperature rise condition, continuing to perform electric field simulation check on the model using the insulating gas mixed according to the proportion, and if each part meets the insulation requirement of equipment and the total greenhouse coefficient and the price of the mixed gas are low, determining that the gas mixing proportion at the moment is the optimal proportion of the SF6 mixed substitute gas; the problem that huge greenhouse gas emission is caused to the environment when greenhouse gas is used in traditional high-voltage GIS equipment is solved, and convenience, low-carbon property and economical efficiency of GIS equipment extension application are taken into account. And the damage to equipment and operators caused by over-high temperature rise or inconsistent insulation requirements due to improper use of the insulating gas under a high-voltage condition is effectively avoided.

The present application relates to the technical field of gas monitoring, and is a kind of sulfur hexafluoride gas on-line monitoring system and method, specifically comprising: constructing surface adsorption kinetics equation to obtain the real-time surface adsorption amount of sulfur hexafluoride arc extinguishing decomposition product in the key components of arc extinguishing chamber;According to the thermal ablation term, the metal vapor generation rate is calculated;Establish a physical evaluation model for the influence of the surface adsorption layer in the arc extinguishing chamber on the flow field performance and heat transfer performance, and evaluate the flow field distortion factor and the thermal recovery retardation factor;Combined with the spatial position sensitive weight, the working performance degradation index of sulfur hexafluoride is predicted;According to the working performance degradation index of sulfur hexafluoride, the trigger judgment of sulfur hexafluoride monitoring alarm is carried out.The present application solves the problem that the gradual degradation of sulfur hexafluoride arc extinguishing ability cannot be accurately predicted and early warned in the prior art.

The invention discloses a sulfur hexafluoride gas density and micro-water content on-line monitoring circuit and device, and relates to the technical field of sulfur hexafluoride gas monitoring, and the circuit comprises a first antenna, a double-parameter sensing module and a single-parameter sensing module; the double-parameter sensing module and the single-parameter sensing module are connected with the first antenna. Compared with a traditional sulfur hexafluoride gas leakage monitoring mode adopting a pressure gauge or a density relay, the sulfur hexafluoride gas leakage monitoring device collects temperature data in real time while collecting the pressure of the sulfur hexafluoride gas, the influence of the temperature on the pressure can be compensated, and the monitoring precision and reliability of the density and the micro-water content of the sulfur hexafluoride gas are improved.

The invention discloses a multi-parameter cooperative monitoring method for sulfur hexafluoride insulation equipment, and relates to the technical field of equipment monitoring, original parameters are collected, and the original parameters comprise a sulfur hexafluoride concentration value, a sulfur hexafluoride density value and an original partial discharge signal; performing discharge preprocessing on the original partial discharge signal to obtain a partial discharge signal; constructing a point spread function matrix, and performing sparse reconstruction on the partial discharge signals by combining an orthogonal matching pursuit algorithm to obtain coordinates and discharge quantity of a partial discharge source; based on the sulfur hexafluoride concentration value, the sulfur hexafluoride density value, the coordinates of the partial discharge source and the discharge quantity, threshold judgment is carried out, and a grading early warning result is obtained. According to the invention, the early discovery capability and fault positioning precision of the insulation defect of the large sulfur hexafluoride insulation equipment are obviously improved, and reliable technical support is provided for equipment state evaluation and intelligent operation and maintenance.

The invention discloses a method, a system, a medium, equipment and a product for adjusting gas particulate matters of a sulfur hexafluoride gas insulated switchgear, and belongs to the technical field of adjustment of gas particulate matters of sulfur hexafluoride gas insulated switchgears. The method comprises the following steps: carrying out data preprocessing on obtained gas characteristic data of the sulfur hexafluoride gas insulated switchgear in a fixed time window to obtain preprocessed gas characteristic data, carrying out particulate matter concentration prediction by utilizing a trained gas characteristic prediction model to obtain predicted particulate matter concentration, and calculating a prediction slope; according to the obtained real-time gas flow rate and the real-time pressure of the sulfur hexafluoride gas insulated switchgear, a GPR online learning mechanism is utilized to obtain a self-adaptive particulate matter accumulation threshold value; and if the predicted slope is greater than or equal to a slope threshold value or the predicted particulate matter concentration is greater than or equal to a self-adaptive particulate matter accumulation threshold value, adjusting the gas flow rate of the sulfur hexafluoride gas insulated switchgear by using a GPR-based Bayesian optimization algorithm.

The present invention relates to a sulfur hexafluoride monitoring system and a carbon neutrality data processing method based on artificial intelligence, and belongs to the field of power grid artificial intelligence technology. The system includes a sulfur hexafluoride gas cylinder, a controller, a sulfur hexafluoride density monitor, a secondary sulfur hexafluoride gas cylinder, an air pump, and a recovery gas cylinder; the sulfur hexafluoride gas cylinder and the controller are connected through a main pipeline; a main valve is provided between the sulfur hexafluoride gas cylinder and the main pipeline; a control valve is provided between the controller and the main pipeline; the controller and the secondary sulfur hexafluoride gas cylinder are connected through a secondary pipeline; a secondary valve is provided between the secondary sulfur hexafluoride gas cylinder and the secondary pipeline; the sulfur hexafluoride density monitor is connected to the main pipeline through a debugging pipeline. It solves the problem of lack of supervision of sulfur hexafluoride gas emissions during the maintenance, construction or debugging of sulfur hexafluoride equipment in GIS equipment substations, and promotes the improvement of greenhouse gas emission reduction and carbon neutrality monitoring levels of power grid companies.

The invention discloses a sulfur hexafluoride gas cylinder inflation system, a sulfur hexafluoride gas cylinder transfer device and a sulfur hexafluoride gas cylinder transfer method.The sulfur hexafluoride gas cylinder inflation system comprises an inflation starting detection assembly, and the inflation starting detection assembly comprises an environment oxygen concentration detection part, an environment sulfur hexafluoride gas concentration detection part, an environment humidity detection part and an environment temperature detection part which are arranged on one side of a gas cylinder; the gas cylinder weight detection part is arranged at the bottom of the gas cylinder; the electromagnetic valve coil leakage current detection part is connected with the electromagnetic valve; the first gas density detection part is arranged at the outlet of the gas filling pipeline; according to the scheme, the electromagnetic valve is accurately controlled to be opened under the safety condition and the necessary inflation condition by monitoring multiple sets of environment data, gas cylinder data and data of the equipment to be inflated, the SF6 gas supplementing work quality is improved, and the safety of personnel and the equipment is guaranteed.

The utility model discloses a spectrum detection device for sulfur hexafluoride gas concentration, which relates to the technical field of sulfur hexafluoride concentration detection and comprises a device main body, a detection probe is arranged outside the device body, an adjusting assembly is arranged on one side of the detection probe, an air inlet pipe is fixedly connected to one side of the device body through an external air pump, and a drainage pipe is fixedly connected to the side, away from the air inlet pipe, of the device body. The detection probe emits laser or infrared light beams to directly penetrate through a gas area to be detected, the concentration is inverted by measuring attenuation of transmission light or reflected light, the position of the detection probe is adjusted through the adjusting assembly so as to adapt to different areas, the sulfur hexafluoride gas concentration can be rapidly inspected and detected in real time, and the practicability of equipment is improved. When leakage is found, the device is switched to a suction mode, gas is sucked into the device body through the gas inlet pipe, the concentration and decomposition products are accurately measured, the two modes can be switched according to detection targets, environmental conditions and maintenance capacity, and various requirements are met.

This application relates to the field of coal mining technology, and provides a method, device, electronic equipment, and medium for detecting air leakage in coal seam group mining faces. The method includes: determining test points in the area to be tested; determining gas collection points on the return airflow of the area to be tested; releasing sulfur hexafluoride (SF6) gas at each test point and collecting the gas at the gas collection points to obtain the test gas; wherein different test points release SF6 gas of different structural types; and determining the air leakage detection result of each test point based on the test gas. This application, by simultaneously releasing SF6 gas of different structural types at multiple test points in the area to be tested and determining the air leakage detection result of each test point based on the collected test gas, can achieve simultaneous multi-source air leakage detection, accurately determine the air leakage situation of each test point in the area to be tested, and improve the air leakage detection efficiency of coal seam group mining faces.

1. The name of the design product: portable gas collection device (full automatic). 2. The use of the design product: for sampling of sulfur hexafluoride gas of electrical equipment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model relates to the field of sulfur hexafluoride density controllers, in particular to a novel sulfur hexafluoride micro-pressure density controller which comprises a shell arranged on a base plate, a window is arranged at one end of the shell far away from the base plate, a meter handle is arranged on the base plate, and the meter handle is arranged on the base plate. A dial plate directly facing the window is arranged in the shell, and a pointer is arranged on the dial plate in a matched manner; the chassis is also provided with a second aviation socket used for signal remote transmission. A high-precision temperature-pressure integrated sensor for collecting the pressure of the switch air chamber and the environment temperature is welded in one end, extending into the shell, of the meter handle; according to the utility model, the stepping motor is used for replacing a movement, the high-precision temperature-pressure integrated sensor is used for collecting the pressure and temperature of the insulating gas, the single-chip microcomputer is used for calculating and driving the stepping motor to drive the pointer to achieve high-precision indication, the high-precision temperature-pressure integrated sensor is used for replacing a traditional elastic element for measurement, a meter shell does not need to be sealed, and the influence of altitude on the meter is solved; and high precision of the instrument is realized.

The utility model discloses a novel transformer substation sulfur hexafluoride gas monitoring device which comprises a mounting frame, a fan is arranged on the mounting frame, the fan is provided with a gas inlet and a gas outlet, the gas outlet is connected with a detection channel, an SF6 detector is arranged in the detection channel, the detection channel is communicated with a pump body, and the pump body is communicated with a gas inlet and a gas outlet. The pump body is provided with a first channel communicated with the detection channel, and the pump body is provided with a second channel communicated with the first channel; wherein an included angle a is formed between the second channel and the air inlet, the included angle a is larger than 30 degrees and smaller than 150 degrees, and the SF6 detector is electrically connected with the fan. The included angle a is formed between the second channel and the gas inlet, so that gas circulates in the transformer substation, and once SF6 leaks, the SF6 detection speed can be increased. And the SF6 detector is electrically connected with the fan, and when no SF6 is detected, the fan is in a low-power working state.

The utility model relates to sulfur hexafluoride gas leakage monitoring technical field discloses a sulfur hexafluoride gas on -line leakage alarm equipment, including the main pipe body, the main pipe body is fixedly connected with the connecting pipe body, is provided with the monitoring module on the connecting pipe body, the assembly component sets up on the connecting pipe body, and the assembly component is used for assembling the monitoring module, and the assembly component includes first connecting disc, second connecting disc, first connecting block, second connecting block and limit rod, and the fixed connection between connecting pipe body and second connecting disc, the close contact between first connecting disc and second connecting disc, first connecting block symmetry sets up on first connecting disc, through limit rod, screw ring, spring and clamping groove between, in the pressing rotation of limit rod, realizes positioning, clamping, fixed effect such as, avoids the traditional fastener installation mode, leads to the installation cumbersome, and the rustification leads to the difficulty to take down, improves the installation efficiency and unloading efficiency of this device.

The application belongs to the technical field of high-purity sulfur hexafluoride preparation, and particularly relates to a method for preparing high-purity sulfur hexafluoride from sulfur recovered in a preparation process of hydrofluoric acid. The method for preparing fluorine-containing active ions through electrolysis of hydrofluoric acid can directly utilize the fluorine-containing active ions to fluorinate sulfur to generate sulfur hexafluoride gas without removing sulfur, and high-purity sulfur hexafluoride gas is prepared through rectification and purification, so that the recycling of sulfur resources is realized, the production efficiency and product purity are improved, and the energy consumption and environmental pollution are reduced.