80 results about "High voltage insulators" patented technology

The invention discloses a high-low voltage line insulator and a preparation process thereof, the process comprises an insulator collaborative production system and a physical energy circulation control system, the insulator collaborative production system carries out collaborative production of a high-voltage insulator and a low-voltage insulator, and the physical energy circulation control system carries out physical energy circulation control on the high-voltage insulator and the low-voltage insulator. High-voltage insulator production waste materials are utilized, production burdening of low-voltage insulators is regulated and controlled according to the mass ratio of all components in the waste materials, production of the low-voltage insulators is completed in combination with high-temperature waste gas waste heat of the high-voltage insulators, and the material energy circulation control system comprises a material circulation control module and an energy circulation control module. The production process of the insulator collaborative production system is regulated and controlled in real time by obtaining real-time waste material parameters and real-time high-temperature waste gas parameters generated in the production process of the high-voltage insulators respectively, and gradient differences existing in the aspects of material purity, structural complexity, process precision and detection standards of the high-voltage insulators and the low-voltage insulators are utilized; collaborative optimization production of high-voltage and low-voltage insulators is realized, and the utilization rate of resources can be remarkably improved.

The invention relates to the technical field of external insulating materials for power equipment, in particular to silicone rubber, a preparation method thereof and application of the silicone rubber in a composite insulator. The silicone rubber is prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber raw rubber, 5-20 parts of hydrophobic silicon dioxide aerogel powder, 3-15 parts of conductive and heat-conducting filler, 10-30 parts of modified aluminum hydroxide, 15-35 parts of fumed silica, 1-3 parts of a silane coupling agent and 2-5 parts of a structuring control agent, 1-4 parts by weight of a low surface energy auxiliary agent, and 0.5-2 parts by weight of a vulcanizing agent. The silicone rubber provided by the invention integrates long-acting hydrophobic anti-icing, active low-power-consumption ice melting and excellent arc ablation resistance, has long-term stability, and is especially suitable for high-voltage insulators in severe environments such as heavy ice areas and heavy dirty areas.

The invention discloses an extra-high voltage insulator, which solves the problem that dust and ice layers on umbrella skirts are not easy to treat when the extra-high voltage insulator is mounted in the air, and comprises a core rod, end connecting columns are symmetrically mounted at two ends of the core rod, umbrella skirt bodies are mounted on the core rod at equal intervals, the upper surfaces of the umbrella skirt bodies are conical, and the lower surfaces of the umbrella skirt bodies are conical. A rotating treatment assembly is installed between the two end connecting columns and comprises a longitudinal plate arranged on one side of the core rod, umbrella skirt treatment units are installed on the longitudinal plate at equal intervals, the number of the umbrella skirt treatment units is the same as that of the umbrella skirt bodies, and the umbrella skirt treatment units correspond to the umbrella skirt bodies one to one; the umbrella skirt processing unit is used for cleaning and icebreaking the top wall of the umbrella skirt body; during working, the top wall of the umbrella skirt body is cleaned through the bristles arranged below the mounting block, the crushing plate above the mounting block is used for crushing an ice layer on the top wall of the umbrella skirt body, and different effects are achieved according to the use environment.

The invention discloses a connecting rubber sleeve for a high-voltage insulator, and the rubber sleeve comprises a sealing part which is disposed at the inner side of the connecting rubber sleeve, and is attached to the surface of the insulator; the outer side part and the sealing part are of an integrated structure; and the reinforcing part is arranged between the sealing part and the outer side part and is used for supporting the sealing part and the outer side part. The connecting rubber sleeve for the high-voltage insulator provided by the embodiment of the invention is divided into the sealing part and the reinforcing part, and the reinforcing part is additionally arranged between the sealing part and the reinforcing part, so that the mechanical strength and durability of the connecting rubber sleeve are improved, and in the process of connecting / fixing the connecting rubber sleeve with the connecting rubber sleeve, the sealing part and the surface of the insulator form a sealing surface; therefore, the condition of discharge and / or short circuit of the insulator is effectively overcome, and meanwhile, as the reinforcing part is added, the stable support of the insulator can be ensured.

A method produces a high-voltage insulator. The method includes: providing a substantially rotationally symmetrical insulating pipe; applying an insulating sheath to the insulating pipe; fastening at least one flange to at least one end of the insulating pipe; and applying at least one insulating strip circumferentially to the insulating pipe.

The invention discloses a high-voltage porcelain insulator cleaning device and method with a multi-shaft cleaning ring, and belongs to the technical field of porcelain insulator cleaning. The high-voltage porcelain insulator cleaning device comprises a movable bearing unit, a cleaning medium supply unit, a multi-shaft cleaning unit and a control unit; the control unit and the cleaning medium supply unit are arranged on the movable bearing unit; the multi-axis cleaning unit is installed at the operation end of the movable bearing unit, and the multi-axis cleaning unit has multi-dimensional stretching and rotating adjustment degrees so as to adapt to cleaning of porcelain insulators at different positions and angles; the cleaning medium supply unit is communicated with the multi-shaft cleaning unit to supply a cleaning medium; the control unit is electrically connected with the cleaning medium supply unit and the multi-axis cleaning unit and used for receiving the detection signals and outputting control instructions. The problems that in an existing outdoor high-voltage porcelain insulator cleaning mode, the high-altitude operation safety risk is high, the operation efficiency is low, and cleaning of an asparagus area is not thorough can be effectively solved.

The invention provides a method and device for preventing pollution flashover of a high-voltage insulator in a humid and hot environment, and the method comprises the steps: obtaining an insulator surface image, leakage current, environment temperature and humidity, and rainfall data in real time through a multi-dimensional monitoring module; carrying out feature fusion processing on the multi-source data, and judging the pollution grade and the pollutant type of the insulator based on a pre-trained lightweight convolutional neural network and gradient boosting tree fusion model; according to the pollution grade and the pollutant type, the pressure of an air pump, the rotating speed of a brush and a cleaning mode are dynamically adjusted through a self-adaptive active cleaning module, and combined type cleaning operation is executed; and after cleaning is completed, the insulator state data are collected again, and if the pollution grade is not reduced to the preset threshold value, a secondary cleaning instruction is generated and early warning information is reported. According to the invention, accurate monitoring and self-adaptive active cleaning of the dirty state of the high-voltage insulator in the humid and hot environment can be realized, the anti-pollution flashover reliability is obviously improved, the pollution flashover risk is reduced by more than 90%, and the operation and maintenance cost is reduced by 40-50%.

The utility model discloses a high-voltage insulator convenient to assemble, the middle parts of the four side surfaces of a fixing box are provided with fixing grooves, the fixing grooves are internally embedded with fixing rods in a sliding manner, the edge parts of the fixing rods are provided with two pin holes at equal intervals, the pin holes are internally embedded with plug pins in a clamping manner, the fixing rods are externally sleeved with supporting springs, and the supporting springs are connected with the supporting springs in a sleeving manner. The fixing rod and the fixing protruding block are driven through the supporting spring, the position of the base in the fixing box is rapidly fixed, operation of workers is more convenient, after the fixing protruding block stretches into a fixing hole, the fixing protruding block is fixed to the fixing box, the fixing protruding block is fixed to the fixing box, and the base is fixed to the inner side of the fixing box in an embedded and matched mode. By embedding the mounting bolt into the pin hole in the side part of the fixing rod, the position of the fixing rod in the fixing box is stabilized, and the supporting spring is not driven to rebound, so that the base is more stable in the fixing box, and the bolt is pulled out when disassembly is needed.

The invention discloses a collaborative pressurizing structure, a self-repairing hot-pressing device and a high-voltage insulator forming process, the collaborative pressurizing structure comprises a frame and a control mechanism, and further comprises an equipment main body mounted in an inner cavity of the frame and a hot-pressing mold mounted in the inner cavity of the frame, and a side sliding block comprises a sliding block main body and an inner conical surface arranged at one end of the sliding block main body; the surface of the inner conical surface is provided with a self-repairing assembly, four sets of auxiliary linkage mechanisms installed on the periphery of the equipment body, a main linkage mechanism installed at the bottom of an inner cavity of the frame and a distance adjusting assembly installed at the top of the frame, and the self-repairing assembly, the four sets of auxiliary linkage mechanisms, the main linkage mechanism and the distance adjusting assembly are used for driving the upper sliding block to do linear reciprocating motion in the axial direction of the die sleeve. Through axial pressurization of the lower sliding block and the upper sliding block and radial pressurization of the side sliding block, the problems of forming and demolding of the V-shaped umbrella edge and the deep-edge umbrella skirt in integrated forming are solved, the overall uniformity and durability of the high-voltage insulator are improved, and the problem that the binding force of the umbrella skirt and the columnar binding surface is weak in step-by-step forming is solved.

The present invention provides a dry-type transformer on-load tap-changing switch and a transformer, which relate to the technical field of transformers and aim to solve the technical problem that the existing dry-type transformer on-load tap-changing switch has a large volume due to the high-voltage insulation design between each conductive point. The dry-type transformer on-load tap-changing switch includes a base, a fixed plate, a switch mechanism and a drive mechanism; the fixed plate is located above the base, and a high-voltage insulator is provided between the fixed plate and the base; the switch mechanism is connected to the fixed plate via a low-voltage insulator; the drive mechanism is mounted on the base and connected to the switch mechanism, and can drive the switch mechanism to adjust the voltage. The transformer includes the dry-type transformer on-load tap-changing switch as described above. The dry-type transformer on-load tap-changing switch provided by the present invention uses graded insulation and is smaller in size.

The invention discloses unmanned aerial vehicle heat flow washing equipment for high-voltage insulators, and mainly relates to cleaning unmanned aerial vehicles. Comprising four supports, an auxiliary structure, a stabilizing structure and a connecting structure, the upper ends of the four supports are fixedly connected with a machine body, four connecting arms are installed on the periphery of the machine body, propellers are installed at the ends, away from the machine body, of the connecting arms, and the auxiliary structure is arranged on the upper surface of the machine body and comprises a water tank; the water tank is installed on the upper surface of the machine body, a heating frame is installed in the water tank, a heating pump is installed on the lower surface of the machine body, a connecting pipe fixedly communicates with one side of the water tank, the connecting pipe is fixedly connected with the heating pump, and a water pipe is installed at the end, away from the connecting pipe, of the heating pump. The high-voltage insulator cleaning device has the beneficial effects that the high-voltage insulator can be cleaned conveniently, and dirt is dissolved by spraying hot water on the surface of the high-voltage insulator, so that the effect of cleaning the high-voltage insulator is achieved.

The utility model discloses a connecting rubber sleeve for a high-voltage insulator, and the rubber sleeve comprises a sealing part which is disposed at the inner side of the connecting rubber sleeve, and is attached to the surface of the insulator; the outer side part and the sealing part are of an integrated structure; and the reinforcing part is arranged between the sealing part and the outer side part and is used for supporting the sealing part and the outer side part. The connecting rubber sleeve for the high-voltage insulator, provided by the embodiment of the utility model, is divided into the sealing part and the reinforcing part, and the reinforcing part is additionally arranged between the sealing part and the reinforcing part, so that the mechanical strength and durability of the connecting rubber sleeve are improved, and a sealing surface is formed between the sealing part and the surface of the insulator in the connecting / fixing process of the connecting rubber sleeve and the connecting rubber sleeve; therefore, the condition of discharge and / or short circuit of the insulator is effectively overcome, and meanwhile, as the reinforcing part is added, the stable support of the insulator can be ensured.

The utility model provides a quick-connection high-voltage insulating rod connecting piece. The quick-connection high-voltage insulating rod connecting piece comprises a first connecting column and a second connecting column, the plug is fixedly installed at one end of the first connecting column, and a limiting groove is formed in the outer side face of the plug; and the joint is fixedly mounted at one end of the second connecting column. According to the quick-connection high-voltage insulating rod connecting piece provided by the utility model, through mutual cooperation of the first connecting column, the plug, the limiting groove, the second connecting column, the joint, the mounting groove, the ball, the spring, the sliding sleeve and other structures, when two insulating rods need to be connected during use, only the plug needs to be inserted into the inner side surface of the joint, and the two insulating rods are connected through the sliding sleeve. And the balls are clamped into the inner side surfaces of the limiting grooves, so that the two insulating rods can be connected, only the sliding sleeves need to be pushed during disassembly, the operation is convenient and rapid, and the working efficiency is improved.

The invention relates to the technical field of high-voltage insulator detection, and provides a high-voltage insulator transverse crack laser ultrasonic non-contact detection method which comprises the following steps: step 1, building a detection system which comprises an industrial personal computer, a pulse laser, a light path system, an ultrasonic receiving system and a scanning system, the pulse laser and the ultrasonic receiving system are in two-way communication with the industrial personal computer through optical fibers, the optical path system is fixed to the scanning system, and the scanning system receives control signals of the industrial personal computer through an industrial bus. And 2, outputting a synchronous trigger signal by the industrial personal computer, and controlling the pulse laser to emit nanosecond laser with the wavelength of 1064nm. Live detection is realized through a non-contact design, and a blind area of a compact insulator is eliminated; the efficiency is improved by means of collaborative scanning, and batch standardized detection is met; the multi-modal fusion and standardization algorithm improves the recognition precision and realizes quantitative detection, the method can also adapt to the outdoor environment to reduce the misjudgment rate, and an efficient, accurate and reliable detection scheme is provided for power grid operation and maintenance.

The invention discloses an extra-high voltage direct current porcelain insulator with an optimized multi-umbrella-skirt structure, and relates to the technical field of high-voltage power transmission, and the insulator comprises a solid porcelain insulator body, a metal flange assembly fixed at the bottom of the solid porcelain insulator body, and a screw assembly for fixing the flange assembly on a mounting table. The screw rod assembly comprises a central screw rod and peripheral screw rods which are annularly arranged, the self-adaptive radial reinforcing assembly is further included, the extension section of the screw rod is sleeved with an abutting sleeve, a folding mechanism which is initially in a V shape is hinged between the abutting sleeves, and the folding mechanism is connected with the metal flange assembly through a hanging rod; the flange assembly pulls the folding mechanism to be flattened through the hanging rod, the abutting sleeve is driven to apply radial thrust to the screw rod, the screw rod is deformed to increase the locking force, and passive self-locking is achieved. According to the invention, the problem that the bottom connection of the extra-high voltage insulator is easy to loosen and age under large-tonnage tension is effectively solved, and the anti-pulling performance is obviously improved.

The invention discloses a high-voltage insulator capable of avoiding a corona discharge phenomenon, and relates to the field of insulators, the high-voltage insulator comprises a porcelain column, and a first umbrella skirt and a second umbrella skirt which are arranged at the outer side of the porcelain column, the top end of the porcelain column is provided with a ball seat, the bottom end of the ball seat is in threaded fit with a bottom rod, and the bottom end of the bottom rod extends out of the porcelain column; an arc-shaped block is fixed at the bottom of the extending end, and an arc-shaped slot is formed in the top end of the ball seat; the upper and lower insulators are in butt joint with the arc-shaped slots through the arc-shaped blocks to form a sphere, thereby increasing the curvature radius of the joint, enabling the surface electric field intensity to be more uniform, thoroughly avoiding the formation of a local strong electric field, fundamentally reducing the occurrence rate of corona discharge, and reducing the electric energy loss and electromagnetic interference. The structure that the two ends of the arc-shaped seam are high and the middle of the arc-shaped seam is low is formed between the arc-shaped block and the arc-shaped inserting groove and is a small-amplitude rotation space of the arc-shaped block, force can be unloaded through rotation under the action of wind force, and breakage or looseness caused by wind force impact in traditional rigid connection is avoided.

The utility model discloses a compact wind power box transformer substation which comprises a box body, a high-voltage chamber, a low-voltage chamber and a transformer chamber are arranged in the box body, the high-voltage chamber, the low-voltage chamber and the transformer chamber are distributed in a delta shape, and the low-voltage chamber and the transformer chamber are located on the same side of the high-voltage chamber. A high-voltage circuit breaker is arranged in the high-voltage chamber and located at the top of the high-voltage chamber, a high-voltage insulator is arranged in the high-voltage chamber and connected to a vertically-arranged high-voltage hanging copper bar, and the high-voltage insulator and the high-voltage hanging copper bar are both contained at the bottom of the high-voltage chamber. The high-voltage circuit breaker is electrically connected to the high-voltage hooking copper bar through a high-voltage outgoing cable; a low-voltage circuit breaker is arranged in the low-voltage chamber, a transformer is arranged in the transformer chamber, a high-voltage sleeve on the transformer extends obliquely upwards from the transformer and is connected with the high-voltage circuit breaker, and a low-voltage sleeve on the transformer extends transversely and is connected with the low-voltage circuit breaker. The wind power box transformer substation disclosed by the utility model is compact in internal arrangement, and the occupied area can be reduced.

This utility model discloses a mud slurry iron removal device for ultra-high voltage insulator production, relating to the field of ceramic equipment technology. It includes an iron removal vessel with a top opening, a cover plate placed on top of the vessel, and a feed pipe connected to the interior of the vessel fixed to the top of the cover plate. The device is characterized by: a magnetic ring fixed to the inner circumference of the vessel; an iron discharge magnetic ring placed inside the magnetic ring on the bottom of the vessel's inner wall; a connecting rod fixed to the inner wall of the discharge magnetic ring; the top of the connecting rod fixed to the cover plate; the outer diameter of the cover plate being larger than the outer diameter of the vessel; two electric push rods fixed to the outer wall of the vessel; the telescopic ends of the electric push rods being fixed to the cover plate via connecting plates; a rotating rod extending through the cover plate into the vessel; and multiple stirring plates fixed to the outer side of the rotating rod at one end inside the vessel. This ensures sufficient contact between the mud slurry and the magnetic ring, improving the adsorption effect of iron impurities and achieving the cleaning of iron impurities from the magnetic ring.

The invention discloses a PA6 / HDPE composite material capable of being used in the field of high-voltage insulators and a preparation method of the PA6 / HDPE composite material. The composite material is mainly prepared from the following raw materials in percentage by weight: 10-60% of HDPE (High-Density Polyethylene); 10 to 20% of PA6 (polyamide 6); 5-10% of a compatilizer; 15-25% of a compound flame retardant; 10-15% of an inorganic filler; 0.5-5% of a stabilizer; 1-3% of a crosslinking auxiliary agent; and 0.1-3% of a lubricant. The preparation method comprises the following steps: premixing the raw materials at a high speed, extruding, granulating and carrying out injection molding through a double-screw extruder, and carrying out irradiation modification on the raw materials by adopting electron beams to obtain the expected high-voltage insulator. After the material is subjected to electron beam irradiation modification, the comprehensive performance, especially the weather resistance and the instantaneous heat resistance, of the material is greatly improved, and the problem that a single HDPE thick product is prone to shrinkage and pore forming is solved.

The invention discloses an extra-high voltage insulator deterioration detection and analysis method based on an electric field method. The method comprises the following steps: S1, obtaining the axial electric field intensity of an insulator; s2, forming an electric field distribution curve of the insulator based on the electric field intensity obtained in the step S1; s3, analyzing the electric field distribution curve: performing feature extraction on the electric field distribution curve formed in the step S2 to obtain measurement curve features, and comparing the measurement curve features with preset normal curve features to obtain comparison data; and S4, judging whether the insulator is degraded or not based on the comparison data obtained in the step S3. The method has the advantages that the electric field curve characteristics of the current insulator can be objectively reflected, the interference of human subjective factors is avoided, the judgment error is reduced, and the deterioration degree of the current insulator is more accurately reflected.

The invention relates to a C6 repair-based HXD1 series locomotive high-voltage insulator residual life periodic performance research method, which comprises the following steps of: performing state grading, accelerated aging test and data fitting on a high-voltage insulator, establishing a thermal life model based on an Arrhenius equation, and accurately predicting the residual life of the insulator. The method has the advantages of being small in sample demand, easy and convenient to implement, high in prediction precision and the like, and is suitable for service life evaluation and maintenance decision making of the HXD1 series electric locomotive high-voltage insulator.

The invention belongs to the technical field of electrical accessories, particularly relates to a high-voltage-resistant insulator and an injection mold and a production process thereof, and aims to overcome the defects that height fine adjustment is difficult to carry out on a post insulator at present and the actual production process is tedious, the high-voltage-resistant insulator comprises a mounting ring, and a plurality of fixing bolts are in threaded connection with the inner wall of the side face of the mounting ring at equal intervals in a penetrating mode. The top of the mounting ring is symmetrically and fixedly provided with a plurality of supporting rods, the top ends of the plurality of supporting rods are fixedly provided with the same supporting ring frame, the insulator further comprises an adjusting mechanism, the height of the produced silica gel type insulator can be finely adjusted according to the condition of an actual mounting site, and when an overhead line is supported, the height of the silica gel type insulator can be adjusted accurately. The injection mold can be conveniently mounted, and can realize automatic material injection, mold closing and automatic blow molding when a silica gel sleeve of a silica gel insulator is subjected to injection molding.

The utility model relates to insulator detection technical field, concretely relates to a high -voltage insulator detection robot, including mobile mechanism and detection device body, mobile mechanism includes mounting bracket, drive assembly, moving block, fixed frame, clamping assembly, two mounting blocks and two arc clamps, drive assembly sets up on mounting bracket, moving block sets up on the output of drive assembly, fixed frame is fixedly connected with moving block, clamping assembly sets up on fixed frame, two mounting blocks set up on the output of clamping assembly, and with fixed frame sliding connection, two arc clamps are fixedly connected with one end of two mounting blocks respectively, detection device body sets up on two arc clamps respectively, can drive detection device body to move through mobile mechanism, and carries out detection to suspension type insulator, and then the practicality of the device has been improved.

The present invention discloses a high- and low-voltage line insulator and a preparation process thereof, the process comprising an insulator collaborative production system and a material-energy circulation control system, the insulator collaborative production system performs collaborative production of high-voltage insulators and low-voltage insulators, utilizes waste produced by high-voltage insulator production and regulates the production ingredients of low-voltage insulators by the mass ratio of each component in the waste, and completes the production of low-voltage insulators in combination with the waste heat of high-temperature exhaust gas from high-voltage insulators, the material-energy circulation control system comprises a material circulation control module and an energy circulation control module, which respectively obtain real-time waste parameters and real-time high-temperature exhaust gas parameters generated in the production process of high-voltage insulators, and regulate the production process of the insulator collaborative production system in real time, the present invention realizes collaborative optimization production of high- and low-voltage insulators by utilizing the gradient differences in material purity, structural complexity, process accuracy and testing standards of high- and low-voltage insulators, and can significantly improve resource utilization.

The present application relates to a kind of new energy distributed photovoltaic double-layer box-type substation, including box shell, high-voltage chamber, transformer chamber and low-voltage chamber, the high-voltage chamber is provided with inverted vacuum circuit breaker unit, integrated disconnecting switch, vacuum circuit breaker and grounding switch;High-voltage unit incoming line side is provided with high-voltage insulator, high-voltage lightning arrester and copper bar for connecting incoming line cable;Outgoing line side uses air insulation, and high-voltage current transformer and connecting copper bar are arranged.The new energy distributed photovoltaic double-layer box-type substation of the present application applies high-voltage cabinet inverted structure, transformer double-layer arrangement technology, low-voltage cabinet operation panel externalization and other technologies in the manufacture of box-type substation, reduces the area, compact structure, low cost, reliable performance and facilitates field construction and maintenance.

The invention discloses porcelain sand for extra-high voltage insulator production and a preparation method, the porcelain sand comprises the following components: 30-50 parts of formula mud, 13-18 parts of alumina powder, 10-15 parts of glaze powder, 4-9 parts of talc, 3-8 parts of first-class clay, 5-10 parts of second-class clay, and 4-9 parts of albite, the formula mud is prepared from the following components in parts by weight: 45 to 60 parts of kaolin, 25 to 30 parts of quartz sand, 10 to 15 parts of potassium feldspar, 8 to 10 parts of bentonite and 0.8 to 1.2 parts of carboxymethyl cellulose; the preparation method of the porcelain sand comprises the steps of ingredient grinding, magnetic separation for iron removal, filter pressing for dehydration, vacuum pugging, drying for sand making and high-temperature sintering. The porcelain sand has extremely high high temperature resistance, arc resistance and aging resistance, can be adhered to the root of an insulator blank through glue and is sintered and molded together with the blank, so that the root of the insulator can be better connected with a fitting through cement, and the overall mechanical strength and electrical performance of the insulator are improved.

The invention relates to a new energy distributed photovoltaic double-layer box-type substation, which comprises a box body shell, a high-voltage chamber, a transformer chamber and a low-voltage chamber, and is characterized in that the high-voltage chamber is internally provided with an inverted vacuum circuit breaker unit, an integrated isolation switch, a vacuum circuit breaker and a grounding switch; the wire inlet side of the high-voltage unit is provided with a high-voltage insulator, a high-voltage lightning arrester and a copper bar used for being connected with a wire inlet cable. The wire outlet side adopts air insulation and is provided with a high-voltage current transformer and a connecting copper bar. According to the new energy distributed photovoltaic double-layer box-type substation, the technologies such as a high-voltage cabinet inverted structure, a transformer double-layer arrangement technology and a low-voltage cabinet operation panel external arrangement technology are applied to manufacturing of the box-type substation, the occupied area is reduced, the structure is compact, the manufacturing cost is low, the performance is reliable, and site construction and maintenance are convenient.

The device comprises a base, a reaction box body is installed on one side of the top end of the base, a box cover covers the top end of the reaction box body in a clamping mode, a liquid inlet is formed in one side of the bottom of the reaction box body, and a liquid outlet is formed in the other side of the bottom of the reaction box body. A waste liquid outlet capable of being opened and closed is formed in the other side of the bottom of the outer curved surface of the reaction box body, a partition plate is installed at the bottom of the inner wall of the reaction box body, and a heater is installed at the position, located at the bottom of the partition plate, in the reaction box body. According to the method, the living environment of aspergillus niger in the reaction cavity can be more comprehensively and dynamically regulated and controlled, the living activity of the aspergillus niger is effectively guaranteed, the degradation work of the high-voltage insulator is more efficiently and stably carried out, the effectiveness of the degradation work of the high-voltage insulator is fully guaranteed, and an efficient, environment-friendly and economical waste high-voltage insulator treatment method is achieved.

The invention belongs to the technical field of steel smelting, rolling and forging processing, and discloses a method for improving the maximum tensile resistance stability of an extra-high voltage insulator steel foot, the steel grade is 45Mn2, and the production process comprises the steps of converter smelting, LF refining, RH vacuum treatment, continuous casting, rolling, straightening, blanking, forging and cooling. By controlling the steel-making DiZ value, controlling the out-of-roundness and the dimensional tolerance through steel rolling, controlling the material bending degree through straightening and controlling the final forging temperature and the cooling rate after forging, the stability of the maximum tensile resistance of insulator steel feet of different batches can be greatly improved, and the fluctuation range of the maximum tensile resistance compared with a reference value is controlled within + / -4.5 KN.

The invention discloses high-manganese alloy steel for an extra-high voltage insulator steel foot and a production process and a forging method of the high-manganese alloy steel, and the high-manganese alloy steel comprises the following components in percentage by weight: 0.471-0.490% of C, 0.180-0.260% of Si, 1.670-1.7% of Mn + Cr, 0.010-0.040% of Al, less than or equal to 0.025% of S and P, less than or equal to 0.0025% of Pb, and the balance of Fe and inevitable impurities. Through reasonable design of components, strict control of residual harmful elements Pb and H in the smelting process, implementation of a controlled rolling and controlled cooling process in the rolling process, positive and negative tolerance rolling according to environmental temperatures in winter and summer, and strict control of the heating temperature and the heating length in the forging process, the mechanical properties of a final product are as follows: the maximum tensile strength is stably controlled to be + / -5KN, and the tensile strength is controlled to be + / -5KN; and meanwhile, the crack occurrence rate of a user product is effectively controlled.