286results about "Supporting insulators" patented technology

Provided in the present application is a power transmission tower, comprising a tower body and a composite cross arm arranged on the tower body. The composite cross arm comprises a post insulator, a diagonal tension insulator and a node fitting, wherein first ends of the post insulator and the diagonal tension insulator are both connected to the tower body, and second ends thereof are connected together by means of the node fitting. The node fitting comprises: a first connecting fitting and a second connecting fitting; and two wire hanging fittings, both of which are connected to the second connecting fitting, the first connecting fitting being connected to the second connecting fitting by means of one of the wire hanging fittings, wherein both the two wire hanging fittings are used for hanging a conductive wire. The post insulator is connected to the first connecting fitting, and the diagonal tension insulator is connected to the first connecting fitting or the second connecting fitting. The described design enables the bearing capacity of the node fitting to be improved, reducing the manufacturing cost of the power transmission tower.

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 present invention belongs to the technical field of insulators, and discloses an anti-fouling self-cleaning pillar electric porcelain insulator, comprising an insulator assembly, on which a pneumatic cleaning arm assembly is arranged, the pneumatic cleaning arm assembly forms an air-driven cleaning arm structure for the insulator on the insulator assembly, and the pneumatic cleaning arm assembly forms a circumferentially rotating and self-rotating cleaning arm structure on the insulator assembly, during the circumferentially moving cleaning process, a fixed-point self-folding cleaning arm structure and a passing-point self-expanding cleaning arm structure are formed on the pneumatic cleaning arm assembly, and a circumferentially moving and self-rotating structure is formed in an annular bin through a toothed gear, that is, at this time, the pneumatic cleaning arm assembly forms a circumferentially moving and self-rotating cleaning drive structure on the insulator assembly, that is, on the basis of the circumferentially moving and self-rotating pneumatic cleaning arm assembly, a primary circumferentially moving and self-rotating cleaning of the pillar electric porcelain insulator by a cleaning brush is achieved, and on the basis of the circumferentially moving and self-rotating pneumatic cleaning arm assembly, a secondary circumferentially moving and self-rotating cleaning of the pillar electric porcelain insulator by an air outlet slot is achieved.

The invention discloses a composite cross arm which comprises a first cross arm, the first cross arm is of an inverted-V-shaped structure, and the top and the two ends of the first cross arm are used for hanging wires respectively; one end of each second cross arm is connected to the middle of the first cross arm, the other end of each second cross arm is used for being connected with an electric pole, the second cross arms are obliquely arranged in the length direction, the second cross arms are arranged below the first cross arms, and the second cross arms and the first cross arms are located in the same vertical plane; and the other ends of the two second cross arms are connected to the two sides of the electric pole through the two connecting fittings respectively. According to the composite cross arm, an all-insulation structure is adopted, the hanging height of the wire is integrally increased through the second cross arm, accidents such as tripping caused by electric shock of birds can be effectively prevented, the safety is higher, and the operation and maintenance cost is lower. The invention further discloses a power transmission pole.

The utility model discloses a basin-type insulator, comprising a flange ring, an insulator body and a conductor insert, the inner circumferential wall of the flange ring is provided with an annular groove, the annular groove extends along the circumferential direction of the flange ring, one side of the annular groove far away from the axial lead of the flange ring is provided with a plurality of clamping grooves, and the plurality of clamping grooves are arranged along the circumferential direction of the flange ring. The side, away from the axis of the flange ring, of at least one clamping groove penetrates to form a pouring opening, the insulator body is of an arc-shaped structure arching upwards, the insulator body is installed in the annular groove, a plurality of clamping parts corresponding to the clamping grooves are arranged on the peripheral wall of the insulator body, the clamping parts are arranged in the clamping grooves in a clamped mode, and the conductor insert is arranged on the insulator body. According to the basin-type insulator, the structural strength can be effectively improved, and the requirement of GIS equipment adopting mixed gas for higher structural strength of the basin-type insulator is met.

The utility model discloses an anti-wet flashover high-voltage post porcelain insulator, which relates to the technical field of post porcelain insulators, and comprises a core column, a metal cap is arranged at the bottom of the core column, the metal cap is sleeved on the core column, an adhesive is filled between the metal cap and the core column, a circular ring is clamped in the metal cap, and the circular ring is sleeved on the core column. The circular ring surrounds the outer side of the core column, a limiting assembly is arranged between the circular ring and the core column, the limiting assembly comprises an elastic piece and a clamping groove, the clamping groove is formed in the outer wall of the core column, the elastic piece is fixedly connected to the inner ring of the circular ring, and the elastic piece abuts against the bottom of the clamping groove. According to the wet-flashover-proof high-voltage pillar porcelain insulator, the circular ring, the elastic sheet, the clamping groove and other structures are arranged, when the elastic sheet corresponds to the clamping groove, the elastic sheet is reset due to elastic force and abuts against the bottom of the clamping groove, butt joint of the metal cap and the core column is achieved, and the connection strength between the metal cap and the core column is improved.

The utility model relates to the technical field of line lightning protection devices, in particular to a lightning protection column type porcelain insulator which comprises a rotating rod, a bolt is in threaded connection with the lower portion of the outer surface of the rotating rod, a cross arm is fixedly connected with the upper portion of the outer surface of the rotating rod, and a plurality of insulator umbrella skirts are fixedly connected with the outer surface of a ceramic column. The upper end of the ceramic column is fixedly connected with a buffer device, the middle part of the outer surface of the buffer device is fixedly connected with a protection device, and the right part of the outer surface of the ceramic column is fixedly connected with an arc striking rod. According to the lightning protection column type porcelain insulator of the utility model, the buffer device and the protection device are arranged, and the buffer spring can play a buffer role, so that the impact force on the plurality of insulator umbrella skirts and the ceramic column can be reduced, and the plurality of insulator umbrella skirts and the ceramic column can be prevented from being damaged; therefore, external sundries can be prevented from falling on the plurality of insulator umbrella skirts to affect the anti-breakdown effect of the plurality of insulator umbrella skirts.

The utility model discloses a lightning protection pillar porcelain insulator with a protective sleeve, which relates to the technical field of porcelain insulators and comprises a core column, a wire sleeve is glued on the top of the core column through an adhesive, a partition plate is fixedly connected in the wire sleeve and divides the interior of the wire sleeve into a threading cavity and a positioning cavity, and the wire sleeve is provided with a protective sleeve. The positioning cavity surrounds the outer side of the core column, two wire conduits are fixedly connected to the outer wall of the wire sleeve, the two wire conduits are symmetrically distributed about the axis of the wire sleeve, the wire conduits are communicated with the threading cavity, and a clamping plate used for clamping a cable is arranged in the threading cavity. According to the lightning protection pillar porcelain insulator with the protection sleeve, through arrangement of the threading cavity, the wire conduit, the clamping plate and other structures, penetration of a cable is facilitated, the clamping plate moves downwards to limit the cable, the purpose of clamping the cable is achieved, the protection effect can be achieved, meanwhile, frequent shaking of the cable on the insulator is prevented, and abrasion is reduced.

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 utility model relates to the technical field of power equipment, in particular to a fast-assembly type post insulator which comprises an insulating part, a lower post used for being connected with a power transmission tower is arranged at the bottom of the insulating part, an upper post is fixedly connected to the top of the insulating part, and an installation assembly used for installing a cable is arranged at the top of the upper post; the mounting assembly comprises a mounting base fixedly connected to the upper supporting column, a groove used for containing a cable is formed in the top of the mounting base, and the two ends of the mounting base are provided with a hinge part and a clamping part respectively. According to the embodiment of the invention, through a mode that the mounting seat, the pressing piece and the clamping piece are matched, an operator only needs to place a cable in the groove of the mounting seat, and when the clamping piece is used, the pressing piece and the mounting seat are fixed in form and position, so that the cable can be fixed; and the cable fixing stability and the overall cable fixing installation efficiency of an operator are remarkably improved.

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.

An electrical bushing includes a conductor extending along a longitudinal axis and an insulating body surrounding at least a portion of the conductor. The insulating body includes a first end, a second end opposite the first end, and a plurality of sheds extending away from the longitudinal axis between the first end and the second end. The insulating body further includes a recess extending into the insulating body from the first end. The recess defines a female connection interface in communication with the conductor. The insulating body further includes an outer surface extending from the first end to a first shed of the plurality of sheds. The outer surface is configured such that electrical stresses on the outer surface vary by 25% or less along an entire length of the outer surface when the conductor is energized to a non-zero potential.