206results about "Supporting insulators" patented technology

The method comprises the following steps: preparing an epoxy sample with a bidirectional strain gauge, carrying out multi-stage thermal cycle treatment on the epoxy sample, and recording strain data to determine an optimal treatment parameter combination, namely temperature, heat preservation time, cooling rate and cycle index; carrying out stress reduction treatment on the epoxy composite insulator based on the optimal treatment parameter combination; the device comprises a programmable oven, a strain gauge and an upper computer. The method is easy and convenient to operate and low in cost, through multi-scale collaborative optimization, the residual stress of the current commercial epoxy composite insulating part can be remarkably reduced, the reliability of the epoxy composite insulating part for the ultra / extra-high voltage power equipment is remarkably improved, and the method has wide engineering application prospects.

The application belongs to the technical field of insulator zero value defect diagnosis. A preparation method of a self-diagnosis slice film of an experimental insulator, characterized in that the method comprises the following steps: 1) preparing electroluminescent paint: taking polydimethylsiloxane as paint base, and adding ZnS:Cu fluorescent powder into the polydimethylsiloxane; 2) cleaning and ultraviolet irradiating a glass sheet; 3) preparing a film by a doctor blade method: after calibrating the position of the doctor blade, evenly spreading the electroluminescent paint on the glass sheet by a small spoon; 4) curing and cutting the coating part: placing the glass sheet with the film into a vacuum drying box, curing the glass sheet with the film at a temperature of 115-125 DEG C for 1-4 h, and then cutting the coating part on the glass sheet. The method can control the thickness and uniformity of the electroluminescent film, reduce the error that may occur when manually spraying the electroluminescent paint on the insulator, and the slice film has certain toughness after curing, and cannot be easily damaged, and can be repeatedly tested or used.

The utility model provides a composite column type insulator with a long steel foot structure, which comprises a composite column type insulator body and a long steel foot connected to one end of the composite column type insulator body, the long steel foot comprises a columnar part and a mounting part, and the columnar part is connected with a positioning assembly; the positioning assembly comprises a sliding ring slidably connected to the periphery of the columnar part in a sleeving mode and a supporting foot rotationally connected with the sliding ring, and the lower end of the supporting foot is rotationally connected with a connecting foot. According to the device, the positioning assembly is connected to the periphery of the columnar part of the long steel leg, the positioning assembly comprises the sliding ring slidably connected to the periphery of the columnar part in a sleeving mode and the supporting leg rotationally connected with the sliding ring, the lower end of the supporting leg is rotationally connected with the connecting leg, and after the mounting part is connected with the mounting base, the sliding ring slides downwards and the supporting leg rotates, the supporting leg is fixedly connected with the mounting base through the connecting leg; according to the composite column type insulator, the cylindrical part, the supporting legs and the mounting base form triangular positioning, so that the composite column type insulator can be stably mounted, and a triangular positioning structure formed by the positioning assembly can be adjusted through sliding of the sliding ring to adapt to different mounting conditions.

The invention discloses a high-strength lead falling prevention type insulated cross arm, and particularly relates to the technical field of electric power systems, equipment comprises a composite cross arm, a butterfly insulator and a binding wire, a connecting mechanism for fixing the butterfly insulator and the binding wire is arranged on the surface of the composite cross arm, and the composite cross arm is connected with the butterfly insulator and the binding wire through the connecting mechanism. The nut is screwed to be in threaded connection with one end of the bolt, the bottom of the nut extrudes the binding wire and the butterfly insulator, so that the butterfly insulator is fixed to the composite cross arm, the binding wire is fixed to the butterfly insulator, an original galvanized iron piece, an original bolt fitting, an original binding wire and an original butterfly insulator are combined into a whole, factory machining and prefabrication are utilized, and the overall performance of the composite cross arm is improved. The device is assembled before leaving a factory, field processing and assembling are avoided, the working efficiency is further improved, meanwhile, the composite cross arm is made of a novel composite material, the service life of the composite cross arm can be prolonged, the operation cost is further reduced, the construction cost is saved, the process standard is unified, and the construction quality is improved.

The present invention provides a GIL with coordinated electrodes and particle traps. The GIL comprises: a conductor disposed within a metal housing; a post insulator disposed on the conductor; a first trap plate disposed within the metal housing in an axial direction corresponding to the post insulator, the first trap plate having a first trap groove on its side facing the post insulator; a blocking electrode disposed on the conductor in an axial direction of the metal housing, spaced from the post insulator; and a second trap plate disposed within the metal housing in an axial direction corresponding to the blocking electrode, the second trap plate having a second trap groove on its side facing the blocking electrode. The blocking electrode has a blocking slope inclined toward the second trap plate, the blocking slope being arranged at an angle to the axis of the metal housing. The technical solution provided by this application can solve the problem of metal particles trapped in the trap groove in related AC / DC GILs escaping from the trap groove.

To provide a support insulator which can stably support a plurality of insert metal parts in a well-balanced manner.SOLUTION: A support insulator (10) includes a body part (11) formed of a resin, and a plurality of insert metal parts (12) embedded in the end in an extension direction of the body part. The body part includes a lower cylindrical body (21) which forms the outer periphery of the end in the extension direction and has an approximately cylindrical shape, a plurality of lower holding bodies (22) which are provided inside the lower cylindrical body and hold the insert metal parts, and a rib (23) which extends inward from the inner periphery of the lower cylindrical body and supports the holding bodies. A plurality of ribs are provided on the lower holding bodies. The plurality of ribs include a pair of first connection ribs (25) for connecting a space between the adjacent lower holding bodies around a central axis and the inside of the lower cylindrical body, and a second connection rib (26) for connecting the lower holding bodies and the inside of the lower cylindrical body between the pair of first connection ribs.SELECTED DRAWING: Figure 2

The invention relates to a support (10) for a bus bar (20) comprising two parts (11, 12) each having two surfaces (11a, 11b, 12a, 12b) preferably substantially planar and perpendicular to each other, arranged to form with the two surfaces of the other part among said two parts (11, 12), a through cavity or a passage; a base (11c, 12c) comprising a hole or a fixing means, and, a complementary shape (11f, 12f) to a shape (11f, 12f) of the other, among the two parts (11, 12), arranged to form together with said shape (11f, 12f) of the other among the two parts, a fastener (1112) between the two parts (11, 12). Advantageously, it is thus possible to obtain a support (10) for a bus bar (20) which is solid, reliable, easy and quick to assemble and inexpensive. Fig. 2

A laundry treating apparatus is disclosed. The laundry treating apparatus comprising a first treating apparatus (10) including a first cabinet (110) for forming an appearance of the first treating apparatus (10), including first side panels (115) and a first rear panel (118). A first front panel (112) being disposed at a front of the first cabinet (110), a first laundry inlet defined at a front face of the first treating apparatus (10), and a first drum (12) disposed inside the first cabinet (110) in a front-rear direction to accommodate laundry through the first laundry inlet. A second treating apparatus (20) including a second cabinet (120) for forming an appearance of the second treating apparatus (20), including second side panels (125) and a second rear panel (128), a second front panel (122) disposed at a front of the second cabinet (120), a second laundry inlet defined at a front face of the second treating apparatus (20), and a second drum (22) disposed inside the second cabinet (120) in the front-rear direction to accommodate laundry, the second treating apparatus (20) being located beneath and supporting the first treating apparatus (10), a front insulating member (450) made of an electrically insulating material and coupled to the front of the first cabinet (110); and an upper frame (400) coupled to a top front of the second cabinet (120) and coupled to the front insulating member (450) at a lower front of the first cabinet (110). Wherein the front insulating member (450) is coupled to the upper frame (400) to electrically insulate the upper frame from the first treating apparatus.

The invention relates to the technical field of insulators, in particular to a high-voltage line column type porcelain insulator with high bending strength. The porcelain insulator comprises a porcelain insulator body which is sequentially provided with an upper iron cap, a porcelain core rod, a lower flange and an umbrella cover group from top to bottom. The hydrophobic rods are arranged on the surface of the umbrella skirt at the bottommost end in an array mode to form the isolation layer and the water isolation cavity, when liquid water flowing from top to bottom passes through the isolation layer, the top ends of the hydrophobic rods can cut off the continuity of a water film, meanwhile, a static air film intercepted by the water isolation cavity is combined to prevent the liquid water from infiltrating an umbrella skirt substrate material, and therefore the umbrella skirt substrate material is prevented from being damaged. Liquid water flowing through the umbrella skirt is forced to be converted into isolated water drops from a continuous water film through the synergistic effect, rolling is accelerated due to the fact that the contact area of the liquid water and the solid surface is reduced, the water film covering area and the residence time of the umbrella skirt surface are directly reduced in the process, and under the low-temperature condition, ice cores are difficult to grow and firmly adhere to the surface; and the bending strength of the porcelain is further improved.

The utility model discloses a novel line column type composite insulator, which comprises a fixed core body, a high-voltage end head is arranged at the top end of the fixed core body, an adhesive film is arranged at the joint of the high-voltage end head and a fixed umbrella cover, and the high-voltage end head and the fixed core body are fixedly adhered through the adhesive film. The bottom end of the fixed core body is sleeved with a metal accessory in a compression joint mode, a threaded connector is formed in the bottom end of the metal accessory, the metal accessory is in threaded connection with a screw assembly through the threaded connector, the outer side of the fixed core body is sleeved with a fixed umbrella cover, and part of the metal accessory is wrapped by the bottom end of the fixed umbrella cover. And the fixed umbrella cover integrally wraps the high-voltage end socket at the upper end. According to the utility model, the electrical performance of a product can be effectively improved, the creepage distance of the product is reasonably and effectively increased, the anti-pollution flashover capability of the insulator is greatly improved, the normal service life of the insulator can be effectively ensured, and the production efficiency of the product is improved.

A bus bar assembly (16) includes a nonconductive terminal cap (22) that is configured to secure to an electrically conductive terminal via an attachment feature (24). The terminal cap (22) has a slot (54) that is configured to expose a terminal portion (19) of the terminal (14) in an assembled condition. A bus bar (40) has an end (52) that is configured to be received in the slot (54) in the assembled condition in which the end (52) is in electrical contact with the terminal portion (19) of the terminal (14). A nonconductive shroud (26) encloses the bus bar (40). The end (52) extends through shroud (26).

Disclosed in the present invention is a support post insulator, comprising a hollow insulating tube, an umbrella skirt that is located at the periphery of the hollow insulating tube, and an upper flange and a lower flange that are disposed on two ends of the hollow insulating tube, wherein a gas is sealed inside of the hollow insulating tube, and the absolute pressure of the gas is 0.1-0.15 MPa. Further disclosed is an insulating support post formed by the end-to-end connection of the support post insulators. The support post insulator and the insulating support post of the present invention solve an interface problem present in internal insulating solid material filling, and also solve a gas leaking problem that occurs when using high-pressure gas filling, such that the support post insulator does not need to be detected and maintained. At the same time, the margin of the micro-water control range is improved, and micro-water control and production difficulty is reduced.

The invention is applicable to the technical field of preparation of rod-shaped pillar porcelain insulators, and provides an assembly and maintenance process and equipment for an oversized and overweight pillar porcelain insulator, and the assembly process comprises the following steps: S1, adopting a clearance four-point positioning method, sleeving a resin positioning module on the upper edge of a metal accessory, enabling the thickness of the module to be 1-2mm smaller than a designed cementing clearance, and enabling the thickness of the module to be 1-2mm smaller than that of the designed cementing clearance; the distance between the lower edge of the module and the upper edge of the metal accessory is less than or equal to 20mm. According to the assembly and maintenance process and equipment for the oversized and overweight post porcelain insulator provided by the scheme, the problems of low cementing efficiency, non-uniform filling, maintenance waste and the like of the oversized post porcelain insulator are effectively solved through a four-point positioning method, accurate adjustment of the cementing frame and directional dripping maintenance; and meanwhile, clearance consistency is ensured through positioning of the resin module, the whole root is prevented from being soaked through wet sponge pre-curing and water dripping of the water bag frame, the cementing quality is improved, and metal corrosion and resource waste are reduced.

The application belongs to the technical field of power distribution equipment, and particularly relates to a lightning protection column type porcelain insulator with a built-in annular discharge gap. The annular electrode of the lightning protection column type porcelain insulator is prone to pollution, which leads to a decrease in the discharge voltage, causes mis-discharge, accelerates damage and increases operation and maintenance costs. The present application discloses the following scheme, which comprises a core rod, an insulator body is arranged on the outer wall of the core rod, and a setting frame is fixedly connected to the lower end of the outer wall of the core rod. The lightning protection column type porcelain insulator with a built-in annular discharge gap has the advantages that the arc surface cleaning plate is driven by the wind to rotate along the surface of the annular electrode by using the lightning protection cleaning assembly, and the plurality of bristles on the arc surface cleaning plate clean the dust and impurities on the annular electrode in the process, so as to ensure the cleanliness of the surface of the annular electrode, thereby avoiding the decrease in the discharge voltage of the gap caused by the dust on the surface of the annular electrode, and preventing the early discharge or mis-triggering. The insulator is not damaged, and the power equipment is protected.

The invention discloses a composite porcelain insulator string, and belongs to the technical field of power equipment. The insulator string is mainly formed by compounding an end hardware fitting, a core rod and a porcelain piece sleeved on the core rod. The core is that the fittings are crimped at two ends of the core rod for connection; the core rod is used as a bearing and internal insulation main body; the porcelain piece is provided with the hollow pipe and the umbrella skirts, and the porcelain piece and the core rod are glued into a whole through the insulation paste, so that the creepage distance is effectively increased, the core rod is protected from environmental erosion, and aging and brittle failure of the core rod are prevented. The composite insulator combines the advantages of good mechanical stability of a porcelain insulator and strong bearing capacity of a composite insulator, has excellent electromechanical performance and long-term operation reliability, and is particularly suitable for an ultra-high voltage transmission line.

The invention discloses a line column type porcelain insulator with a protective structure at a joint, and relates to the technical field of column type porcelain insulators, the line column type porcelain insulator comprises a magnetic part and a metal cap, the outer side of the bottom end of the magnetic part is sleeved with the metal cap, the metal cap is arranged at the top end of a cross arm, and the bottom end of the metal cap is provided with a threaded column penetrating through the cross arm. The outer surface of the threaded column is in threaded connection with a nut. As the protective sleeve is in sliding connection with the metal cap through the guide groove and the guide block, and the clamping block is elastically connected with the protective sleeve through the supporting spring, after the threaded column penetrates through the cross arm, the protective sleeve can be pulled upwards to be clamped with the fixing block through the clamping block and the clamping groove; according to the utility model, the metal cap is arranged on the protective sleeve, so that the connecting part between the protective sleeve and the metal cap can be prevented from loosening, the firmness of the connection between the metal cap and the porcelain piece can be further improved on the basis of the adhesive, the porcelain insulator is protected, the service life of the porcelain insulator is prolonged, and the potential safety hazard is obviously reduced.

The invention discloses a basin-type insulator with a partial discharge detection function for a GIS (Gas Insulated Switchgear), and relates to the technical field of equipment detection, the basin-type insulator comprises a basin-type insulator and a metal flange which are coaxially arranged, and the metal flange is fixed on the outer edge of the basin-type insulator; the outer edge of the basin-type insulator is provided with a grounding electrode assembly. The ultrahigh-frequency self-sensor is fixed on the outer side of the edge of the metal flange and penetrates through the metal flange to be connected with the grounding terminal. The ultrahigh frequency sensor is integrally fused in the basin-type insulator, so that the problems that existing built-in sensors are few in distribution points and small and micro defects are difficult to find are solved on the basis that the original performance of the GIS is not affected.

The application provides a new type of gas insulated rigid power transmission line with a spiral support structure and an optimization method thereof, which comprises three support insulators, a high-voltage conductor, a grounding shell, a high-voltage side / grounding side metal insert, a spiral metal ring and a roller. Compared with the original structure, the spiral metal ring and the roller are used to effectively improve the assembly convenience. The improved stable triangular support structure significantly improves the mechanical strength and stability, avoids the tilting and fracture risks of the three single support insulators caused by unbalanced stress, and can meet the support of conductors with different GIL arrangement angles. The application designs the structure of the new type of spiral support insulator, effectively reduces the electric field and stress of the insulating support insulator, improves the insulating performance, and improves the reliability of the safe operation of the power transmission line.

The utility model discloses a novel line column type insulator which comprises an insulating core rod, an umbrella skirt sheath is arranged outside the insulating core rod, the top end and the bottom end of the insulating core rod are respectively and fixedly connected with an upper accessory and a lower accessory, the interior of the upper accessory is rotatably connected with a pipeline clamping sleeve, the pipeline clamping sleeve comprises a main body, and the main body is fixedly connected with the umbrella skirt sheath. The main body is provided with an opening, the main body is internally provided with a placing groove, and the two ends of the main body are fixedly connected with protruding skirt edges, and belongs to the technical field of electric power transmission and distribution line insulators. According to the novel line column type insulator, the wire is installed into the pipeline clamping sleeve through the opening, then the pipeline clamping sleeve is rotated by 180 degrees, the opening faces downwards, the wire is rapidly installed, site construction is simple and rapid, time and labor are saved, an upper accessory is made of a novel modified composite material and is not prone to abrasion, and the arc distance of the insulator is lengthened; the power frequency withstand voltage and the impact withstand voltage of the insulator are remarkably improved, and the electric field distribution at the upper end of the insulator is more uniform.

The invention discloses a composite post insulator capable of live working and a use method, belongs to the field of electric power facilities, and solves the problem that an insulator in the prior art is inconvenient to replace. The wiring piece comprises a first clamping body, a second clamping body and a driving rod, the first clamping body and the second clamping body are hinged through a hinge shaft, the first clamping body and the second clamping body have a closed position and an open position, the driving rod is rotationally connected with the first clamping body, and the second clamping body is provided with a threaded hole. The driving rod comprises a middle polished shaft section, a first threaded section and a second threaded section, the first threaded section and the second threaded section are located at the two ends of the polished shaft section, when the first clamp body and the second clamp body are located at the closed position, the first threaded section is in threaded fit with the threaded hole, and when the first clamp body and the second clamp body are located at the open position, the second threaded section is in threaded fit with the threaded hole. When the first clamp body and the second clamp body move between the closed position and the open position, the optical axis section penetrates through the threaded hole in a sliding mode. According to the invention, the insulator is more convenient to replace.

The present invention discloses a T-shaped cross-section column-type composite insulator device and an optimal cross-section size calculation method thereof. The device includes: an insulating core rod, a connecting fitting, and an insulating outer sheath. The cross-section of the insulating core rod is set to be T-shaped. The shape of the T-shaped cross-section includes a standard T-shaped cross-section and a T-shaped cross-section in which one or more straight lines of the outer contour are set as arcs with a preset curvature. The insulating core rod is used to ensure the mechanical performance of the insulator. The connecting fitting is used to connect the column-type composite insulator to the power transmission and transformation equipment component, so that the column-type composite insulator is reliably connected to the power transmission and transformation equipment component. The insulating outer sheath includes a plurality of umbrella skirts and a sheath. The insulating outer sheath is used to protect the insulating core rod. The umbrella skirt is used to increase the creepage distance of the insulator. The insulator device can be applied to AC and DC overhead transmission lines and substations with voltage levels above 1000V in the power, railway, and power plant industries.

The present invention discloses an insulating crossarm, a preparation method thereof, and a transmission pole, comprising: an integrally cast connecting fitting, the connecting fitting comprising an intermediate connecting portion and two sleeves respectively arranged at both ends of the intermediate connecting portion; a core rod comprising a first core rod and a second core rod, one end of the first core rod and one end of the second core rod being fixedly connected to the two sleeves respectively; two hanging wire fittings, the two hanging wire fittings being respectively fixedly connected to the other end of the first core rod and the other end of the second core rod; an insulating layer, the insulating layer covering and fixed to the outer circumference of the core rod, the insulating layer being located in areas other than the connecting fitting and the hanging wire fitting, and the insulating layer and the connecting fitting, as well as the insulating layer and the hanging wire fitting, are all sealed. The insulating crossarm of the present invention has a simple structure, high mechanical strength, high production efficiency, and is easy to install. It is applicable to a variety of pole bodies and has versatility.

The invention relates to a composite insulator for an overhead line system, an overhead line system with at least one such composite insulator 1 and a method for manufacturing such a composite insulator 1, wherein the composite insulator according to the invention has at least one insulator core 3 and at least one connecting device 15 for connecting the composite insulator 1 to a fastening device and at least one clamping device 13 for directly connecting the composite insulator 1 to a ceiling busbar 40 of the overhead line system, wherein the clamping device 13 is at least partially integrally formed on the insulator core 3 of the composite insulator 1.

The invention discloses a modified PBO fiber reinforced epoxy resin composite material as well as a preparation method and application thereof. The composite material comprises matrix resin and modified PBO fibers, wherein the matrix resin is prepared from the following components in parts by mass: 100 parts of epoxy resin, 75 to 85 parts of methylhexahydrophthalic anhydride and 0.3 to 0.8 part of 2, 4, 6-tri (dimethylaminomethyl) phenol; the modified PBO fibers account for 1-4% of the modified PBO fiber reinforced epoxy resin composite material by mass. The preparation method effectively solves the problems of strong surface inertia and poor interface adhesion with epoxy resin of the PBO fiber, obviously improves the interface shear strength, mechanical properties, thermal stability and thermal conductivity of the composite material through synergistic physical etching and chemical bonding, keeps high breakdown strength, and has the advantages of mild and controllable process, small fiber damage and low cost. The method is suitable for manufacturing the extra-high voltage insulation core rod.

The present application belongs to the field of direct current transmission, and particularly relates to a support insulator, an insulating support structure and a direct current GIL. In order to solve the technical problem that the electric field lines pass through the support insulator in the prior art, resulting in that the normal field intensity of the side surface of the support insulator is too large, the present application provides a support insulator, which comprises a high-potential support surface for supporting a conductive rod, a low-potential support surface for supporting an insulating cylinder and a side surface, the high-potential support surface and the low-potential support surface are both arc surfaces, the axis of the high-potential support surface and the low-potential support surface corresponds to the axis of the matched conductive rod, and the extension line of the projection of the side surface of the support insulator in the direction of the axis of the corresponding conductive rod intersects with the axis of the conductive rod. The present application further provides an insulating support structure and a direct current GIL using the support insulator. By making the electric field lines parallel to the side surface of the support insulator, the normal field intensity of the side surface of the support insulator can be reduced, and the surface flashover voltage and the insulating strength of the support insulator can be improved.

The utility model relates to the field of insulators, and discloses an insulator stable supporting device, which comprises a base, a plurality of mounting holes are formed in the base, a receding groove is formed in the base, a first threaded hole is formed in the inner bottom wall of the receding groove, an insulator is arranged in the first threaded hole, and a second threaded hole is formed in the inner bottom wall of the first threaded hole. The device comprises a base, two storage grooves which are symmetrically distributed left and right are formed in the base, connecting rods are rotationally connected to the interiors of the two storage grooves through hinges, clamping devices clamped to the base are arranged on the outer sides of the two connecting rods, and wire bunching devices are arranged on the opposite sides of the two connecting rods. The top of the base is fixedly connected with an arc-shaped plate, and a second threaded hole is formed in the arc-shaped plate. The stable supporting device for the insulator has the advantage of being capable of supporting the cable.

The invention provides a supporting insulator for a clean air insulation circuit breaker, and the insulator comprises an insulator main body which is of a conical cylindrical structure, the outer wall surface of the insulator main body is a corrugated smooth curved surface, and the inner wall surface of the insulator main body is an arc surface; the number of the shielding rings is two, the two shielding rings are arranged at the upper end and the lower end of the insulator respectively, the shielding ring located at the upper end is connected with an upper plate of the circuit breaker, and the shielding ring located at the lower end is connected with a supporting conductor of the circuit breaker. According to the supporting insulator for the clean air insulation circuit breaker, the problems that an existing movable side insulation support is low in mechanical strength, poor in insulation performance, poor in cooperation with other parts and the like are solved, and the performance and reliability of the circuit breaker are improved.

Embodiments of the present disclosure provides a busway assembly, a busway connector and a partition plate thereof. The partition plate of the busway connector includes: a separator body including a first surface and a second surface that are opposite to each other; at least one conducting member mounted in the separator body; a first conductor fixed on the first surface; and a second conductor fixed on the second surface and electrically connected to the first conductor through the at least one conducting member.