16 results about "Sulphur Hexafluoride" patented technology

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 invention relates to a circuit-breaker (1), comprising a gas compression arrangement (4) configured for compressing a quenching gas to be contained therein and which quenching gas is free of sulphur hexafluoride; a first contact (20) and a second contact (30) movable relative to one another along a switching axis (2); a nozzle (40) providing an inflow channel (IN) connecting the gas compression arrangement (4) to an arc zone (3), the inflow channel (IN) constituting a minimal inflow area to be passed by the quenching gas, the nozzle (40) radially restricting the arc zone (3) between the first contact (20) and the second contact (30); wherein, for the quenching gas to exit the arc zone (3), the circuit-breaker (1) provides at least one outlet (OUT1, OUT2) constituting a minimal outflow area, and the minimal inflow area divided by the minimal outflow area defines an inflow- outflow-ratio being at least 0.5.

This invention relates to the field of gas monitoring technology for combined electrical appliances, and particularly to an installation device for gas monitoring of a sulfur hexafluoride (SF6) sealed combined electrical appliance. The device includes a structural assembly comprising a structural member and a monitoring member disposed on one side of the structural member. A clamping assembly includes an insert disposed on one side of the monitoring member, a rotating member disposed inside the structural member, and a clamping member disposed inside the structural member. The rotating member includes a rotating ring rotatably disposed within a mounting block and an arc-shaped protrusion disposed on the outer surface of the rotating ring. The clamping member includes a fixing ring disposed inside the mounting block, and further includes a sliding frame slidably disposed outside the fixing ring and an arc-shaped clamping plate disposed on one side of the sliding frame. This invention, through the coordinated use of the clamping assembly, including the insert disposed on one side of the monitoring member, the rotating member disposed inside the structural member, and the clamping and clamping members disposed on one side of the structural member, facilitates the quick and easy fixing of a pressure sensor to one side of the mounting plate, enabling rapid installation and disassembly.

The utility model relates to the field of electrical equipment, and particularly discloses a sulfur hexafluoride load switch mounting structure. The load switch mounting structure comprises a cabinet body, a mounting plate fixedly mounted in the cabinet body and a switch shell mounted on the inner side of the mounting plate, the switch shell comprises an upper shell and a lower shell, the mounting plate is provided with a mounting groove for mounting the lower shell, and the upper shell is fixedly mounted on the upper side of the lower shell. Limiting pieces used for limiting the lower shell are installed at the two ends of the installation plate, a positioning piece used for fixing the lower shell is installed at the other end of the installation plate, and a driving piece used for driving a main shaft on the inner side of the lower shell is fixedly installed on one side of the cabinet body. According to the invention, through the limiting member and the positioning member, rapid limiting and limiting releasing operation of the lower housing can be realized, so that an operator can mount and dismount the load switch more conveniently, and tedious operation of tightening or loosening bolts one by one can be avoided, thereby improving the mounting and dismounting efficiency of the load switch.

The application discloses a method for preparing fluorine-containing diphenylmethane compounds by using sulfur hexafluoride as a fluorination reagent, and belongs to the technical field of organic chemical synthesis. The preparation method comprises the following steps: (1) mixing a photocatalyst, a solvent and a reducing agent, and performing ultrasonic treatment to obtain solution A; mixing a reaction substrate and the solvent to obtain solution B; the photocatalyst is one or more of 4CzIPN, Ir[dF(CF3)ppy]2(dtbpy))PF6, 9-thioxanthone and 10-phenylphenothiazine; the reaction substrate is a compound with a structural formula of R1 and R2 are both H, alkoxy or halogen; (2) mixing the obtained solution A and solution B in a sulfur hexafluoride gas atmosphere, and performing reaction under blue light illumination, and the fluorine-containing diphenylmethane compounds are obtained. The method has the beneficial effects that the fluorine-containing diphenylmethane compounds are efficiently prepared by using sulfur hexafluoride as the fluorination reagent, and by selecting raw materials and catalysts with certain proportions; the reaction raw materials are cheap; the preparation process is safe, mild, has good substrate compatibility and high preparation efficiency.

The present application relates to the technical field of matcher device, especially to a matcher device suitable for high pressure working environment, which aims at the problem that the existing radio frequency matcher cannot be adapted and optimized for the high pressure environment formed by the injection of sulfur hexafluoride into a sealed tank, is prone to abnormal operation or even stoppage failure under the action of high pressure in the tank, and cannot meet the use requirements of special experimental scenes, and proposes the following technical scheme: a matcher shell is provided with two groups of baffles; two groups of capacitors are arranged between the two groups of baffles, and adjusting mechanisms are arranged at two ends of the capacitors respectively, the adjusting mechanisms are used for adjusting the capacitance value of the capacitors to dynamically adjust the self impedance of the matcher; and a circuit board is installed in the matcher shell. The matcher can be used in high pressure working environment, is safe and convenient, and has good social and economic benefits.

The application discloses a plasma catalyst suitable for sulfur hexafluoride degradation, a preparation method of the plasma catalyst and application of the plasma catalyst in low-temperature plasma catalytic degradation of SF6. The plasma catalyst comprises a carrier and an active component; the carrier comprises gamma-Al2O3; and the active component comprises a cerium-zirconium sulfated solid solution; the mass ratio of the cerium-zirconium sulfated solid solution to the gamma-Al2O3 is (1-55):100. The plasma catalyst can obtain a SF6 degradation rate of more than 95% and a SO2 selectivity of more than 94% under the condition of an input power of 60 W. x The plasma catalyst has high SF6 degradation rate and SO2 selectivity, and the long-range stability of the catalyst is excellent, and the SF6 degradation rate and the SO2 selectivity of the catalyst can still be more than 91% and more than 85% respectively after 12 hours of continuous use. x The plasma catalyst has high SF6 degradation rate and SO2 selectivity, and the long-range stability of the catalyst is excellent, and the SF6 degradation rate and the SO2 selectivity of the catalyst can still be more than 91% and more than 85% respectively after 12 hours of continuous use.

The application discloses a carboxylic acid amidation method and an amide compound prepared by the method. The preparation method takes an amine compound and a carboxylic acid compound as raw materials, takes an organic solvent as a solvent, and performs light irradiation under the condition that a photocatalyst, an alkali and sulfur hexafluoride exist, so as to perform a reaction in the organic solvent to obtain the amide compound. The reaction condition of the application is mild, the reaction raw materials (including the amine compound, the carboxylic acid compound and the alkali) are cheap and easy to obtain, the application has the characteristics of cost saving, environmental friendliness and industrial popularization. The method effectively activates SF6, a greenhouse gas, and fully utilizes the decomposition products of SF6 to realize the amidation reaction of the carboxylic acid, so that SF6 is changed from waste to treasure. The required raw materials are simple and easy to obtain, the reaction condition is simple, green and energy-saving, and the application has high application value.

This utility model provides a 40.5kV gas-insulated cable junction box, mainly composed of an outer casing, an operating mechanism compartment, an operating mechanism, an outgoing cable compartment, outgoing cables, a gas-filled compartment for the disconnecting switch, a surge arrester, an incoming cable compartment, incoming cables, and partitions. The cable junction box has independent compartments. The gas-filled compartment for the disconnecting switch is insulated with sulfur hexafluoride gas and is welded from 3mm thick stainless steel plate. The outer casing of the cable junction box is assembled from 2mm thick steel plate after bending. This utility model has a compact structure, good sealing performance, high protection level, and strong corrosion resistance.

The application belongs to the technical field of solar cells, and discloses a preparation method of a high-bifaciality back contact solar cell and a BC module containing the same. The preparation method comprises the following steps: firstly, ICP etching is performed on the front surface of a silicon wafer by dynamically adjusting the flow ratio of sulfur hexafluoride to oxygen in three stages to form a gradient composite textured surface; then, a mask layer is deposited on the back surface, and a complementary nano-pillar array microstructure is prepared through nano-imprinting and etching; finally, based on the spectral characteristics of the front and back surfaces, a matching gradient antireflection film and a light transmission film are respectively deposited. The application effectively reduces light reflection loss through the morphology coordination of the front gradient textured surface and the back microstructure, and the optical matching of the front and back film systems. The prepared cell has a front surface reflectivity of ≤3%, a back surface reflectivity of ≤4%, a bifaciality of ≥92%, and excellent stability. The BC module prepared by using the same is stable and reliable in long-term use.

The utility model belongs to the technical field of insulator test, and discloses an insulator test tool, which comprises an accommodating barrel and a clamping assembly, insulating oil is filled in the accommodating barrel to replace sulfur hexafluoride in an electrical cabinet, and the insulator test tool is more reliable and environment-friendly; the clamping assembly comprises a first voltage-sharing piece and a second voltage-sharing piece which are arranged on the two sides of the insulator, protrusions are annularly arranged on the sides, deviating from each other, of the first voltage-sharing piece and the second voltage-sharing piece, and due to the arrangement of the protrusions, on one hand, when liquid or gas passes through, pressure distribution is more uniform, local high-voltage or low-voltage areas are reduced, and the stability of follow-up testing is ensured; on the other hand, electric field distribution can be smoothed through the arrangement of the protrusions, the corona discharge possibility is reduced, energy loss and electromagnetic interference are reduced, and the electromagnetic compatibility of equipment is improved. The clamping assembly and the insulator are arranged in the accommodating barrel and soaked in the insulating oil to simulate the use condition in the electrical cabinet, and then the performance of the insulator is measured by using a corresponding testing instrument, so that the qualified rate of the insulator loaded in the electrical cabinet is ensured.

The utility model relates to the technical field of looped network switch equipment, in particular to alternating-current high-voltage sulfur hexafluoride looped network switch equipment which comprises a cabinet body, an opening and closing door is hinged to one side of the cabinet body, an air inlet pipe is installed at one end in the cabinet body in an embedded mode, and a conveying box is installed at one end of the air inlet pipe. A closing switch is installed on one side of the inner wall of the cabinet body, a protection box is installed at the end, extending to the inner side of the cabinet body, of the air inlet pipe, the protection box covers the closing switch, a closing door is hinged to the other side of the protection box, and air inlet heat dissipation mechanisms are installed on the conveying box and the protection box. The air inlet heat dissipation mechanism comprises an air blowing blocking assembly, an adjusting assembly and a moisture absorption assembly. The dust-proof device is simple in structure and convenient to operate, external dust and impurities can be blocked when air enters the dust-proof device, meanwhile, the drying strips which are saturated in adsorption can be replaced conveniently, the dust-proof net can be quickly separated and cleaned, and the fan can be overhauled and maintained by directly lifting the placing frame without taking down the dust-proof net.

This application relates to the field of mechanical manufacturing and assembly, and in particular to an integral insulating joint and its assembly method. It includes an integral insulating joint comprising a connecting pipe assembly, a hook ring, and a heat-shrink sleeve. The connecting pipe assembly consists of a left flange, an insulating sealing plate, a right flange, etc., with sealing rings and insulating sleeves between the components, and multiple arc-extinguishing chambers filled with sulfur hexafluoride. The application also includes an assembly method for the integral insulating joint, covering steps such as component welding, assembly, compression, welding, wrapping with heat-shrink tape, and heat shrinking. This application achieves the technical effect of improving the sealing performance, insulation, and arc-extinguishing capability of the insulating joint, ensuring its stable and reliable operation, and standardizing the assembly process of the insulating joint to guarantee assembly quality.

1. Name of the product in this design: Circuit breaker insulating cylinder. 2. Purpose of this design: For use as accessories in sulfur hexafluoride circuit breakers. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

The present application relates to photovoltaic cell packaging technical field, especially a kind of double-sided coating transparent backboard and preparation method thereof;Including the following steps: 1) PET substrate film single side coating;2) coating surface drying operation;3) plasma surface treatment: substrate film after drying in step 2) From oven to plasma processor, the surface of coating layer is carried out plasma grafting treatment;Mixing carbon tetrafluoride, nitrogen trifluoride, sulfur hexafluoride, bis (3-aminopropyl) polyethylene glycol, one or more of amino ether acid gas in nitrogen-based atmosphere as dopant gas;4) the transparent substrate film treated in step 3) From oven to winding device;5) PET transparent substrate B side coating treatment: the prepared substrate film B side is carried out 1) 2) 3) Same processing mode, finally obtain the double-sided coating transparent backboard;The present application has the advantages such as simple preparation process, economic and environmental protection, strong adhesion, good weather resistance, etc.