80results about How to "Improve lightning protection" patented technology

Belonging to the technical field of lightning protection, the invention relates to an insulating and thermal conductive ablation resistant adhesive and application thereof in lightning protection. The adhesive is mainly prepared from the following raw materials: 20-100% and not up to 100% of a mixture of high temperature resistant resin and a curing agent, and 0-80% and greater than 0% of an insulating and thermal conductive ablation resistant inorganic filler. After curing, the electrical conductivity of the adhesive is in the range of 10<-8>-10<-20>S/m, the DC breakdown voltage in the air is in the range of 30-300kV/mm, the thermal conductivity is in the range of 0.2-3.0W/(m.K), and the ablation resistant temperature is up to 300DEG C. A certain thickness (30-250micrometer) of the insulating and thermal conductive ablation resistant adhesive is employed to stick a conductive film to the surface of a continuous carbon fiber laminated composite material part, thus preventing conduction of current to the continuous carbon fiber laminated composite material part and improving the lightning protection effect of the conductive film.

The invention relates to the field of lightning protection equipment, and specifically relates to a parking apron automatic lifting lightning rod and a control method. The lightning rod comprises a lightning rod fixed on an installation base plane, and further comprises a control system, a hydraulic system and an oil cylinder jacking mechanism. Horizontal and vertical turning of the lightning rod is controlled by the oil cylinder jacking mechanism. The oil cylinder jacking mechanism is connected with the hydraulic system through a hydraulic oil pipe. The control system is electrically connected with the hydraulic system through a cable. The invention further provides a control method of the lightning rod. The problem that the existing parking apron lightning protection device causes hidden danger to aircraft take-off and landing is solved, and a best lightning protection effect is achieved. The oil cylinder jacking mechanism drives the lightning rod to turn in the horizontal and vertical directions. The lightning rod is horizontally placed at ordinary times, which does not affect aircraft take-off and landing. The lightning rod has a good lightning protection effect and strong ability to resist wind, and can resist wind up to10 grades. A reliable guarantee is provided for airport parking apron lightning protection.

Rotor blade (30) has rotor blade nose (31), deposition sensor device (1) arranged in the area of a rotor blade nose with a transmitter for wireless transmission of signals via a transmission link and receiver for receiving signals that are transmitted in a wireless manner via transmission link. Surface depositions can be detected in area of transmission link based on signals transmitted via transmission link. An independent claim is also included for the wind power station.

The invention provides a method and a device for protecting lightning intrusion waves at a VSC DC converter station. The main wiring diagram of the VSC DC converter station, equipment parameters, theconductor and tower are used to calculate the electromagnetic transient model, it is possible to accurately calculate that when a counter-strike and a winding strike occur at the converter station, the overvoltage distribution of lightning intrusion wave on each equipment, and the corresponding protection scheme is proposed according to the calculated overvoltage. The protection scheme includes adjusting the number of lightning arrester posts and the arrangement position of the lightning arrester, etc., which has important application value for improving the lightning protection capability ofthe VSC converter station and optimizing the design level.

A signal lamp monitor system for railway and its regulating method are disclosed. The mutual induction transformer is used to connect the filament monitoring relay in the loop and the number of turns and the voltage ratio of said mutual induction transformer are regulated according to the working current in filament monitoring relay and loop, so monitoring the working current in circuit and in turn the failure in the circuit without change in the voltage of system power supply.

The invention discloses a lightweight high-temperature-resistant lightning-proof composite board and a forming method. The lightweight high-temperature-resistant lightning-proof composite board comprises two layers of upper panels and two layers of lower panels which are laid in a balanced and symmetrical sequence according to a laying proportion of [(+45, -45)/(0, 90)]S; the upper panel on the outermost layer and the lower panel on the outermost layer are each provided with a layer of a lightning-proof copper net adhesive film; and each lightning-proof copper net adhesive film is formed by compounding a copper net and an adhesive film. The formed composite board provided by the invention is light in weight, good in lightning-proof performance, excellent in corrosion resistance and manufacturability and capable of meeting the requirements of aviation products.

The invention relates to the field of power transmission, in particular to a thunder prevention method, which is simple in step, convenient in thunder prevention and low in cost, for a power transmission and distribution line. The thunder prevention method comprises the following steps: measuring thunder and lightning weather data through a satellite measurement system of the state meteorological administration, and recording positioning information; sending the thunder and lightning weather data and the positioning information measured in the previous step to an adjacent power transmission line transformer substation control system; cutting off power transmission of the power transmission line in advance according to time information in the measured thunder and lightning weather data through the power transmission line transformer substation control system; and connecting power transmission of the power transmission line in a lagged mode according to the time information, measured by the power transmission line transformer substation control system, in the thunder and lightning weather data. According to the thunder prevention method for the power transmission and distribution line, the satellite measurement system of the state meteorological administration is matched with the power transmission line transformer substation control system, so that damages, on the power transmission line, of thunder and lightning can be timely and conveniently reduced, and therefore, the thunder prevention method has the characteristics of simple steps, convenient thunder prevention and low cost.

The invention discloses a high-rising building construction method and device. The high-rising building construction method comprises the following steps that A, a vertical shaft frame, an operation platform and a vertical transportation device are installed on a building foundation, the vertical shaft frame is sequentially provided with a plurality of pairs of jacking devices in the height direction, one end of each pair of jacking device is fixedly connected with the vertical shaft frame, the other end of each pair of jacking device is fixed to a bracket of the cylinder wall of a building, and the operation platform is in a radial shape, is of an upper hook structure and comprises a plurality of ring beams and a plurality of radial beams connected to the ring beams; B, a displacement type inner formwork of the construction layer is installed, and steel bar engineering construction of the construction layer is carried out; C, a displacement type outer formwork of the construction layer is installed, and concrete of the construction layer is poured; D, the displacement type formwork of the construction layer is dismantled and cleaned; and E, the operation platform is lifted to the next construction layer, and the steps B-D are repeated till the building reaches the preset elevation. The construction method is simple and feasible, the construction period is short, and the safety risk and the engineering cost are reduced.

The invention relates to a lightning protection device for ultra-large steel structure radar, which comprises a plurality of lightning rods, a plurality of insulated supports, a plurality of lightningprotection strip plates, a downlead and a ground network, wherein the plurality of lightning rods are respectively connected to a lightning protection strip, the lightning protection strip is arranged on a main body frame of the radar steel structure in an insulated manner, the plurality of lightning rods disperses and leads received lightning into the lightning protection strip and then introduces the lightning to the ground network via the lightning protection strip, or the lightning protection strip directly receives the lightning and introduces the received lightning to the ground network, and the ground network discharges the lightning to the ground. According to the invention, the lightning is effectively dispersed and led into the ground. The lightning protection device is small inoverall height and simple and convenient to assemble and disassemble, plays a role of lightning protection for the whole radar equipment, solves the problems of difficult installation and maintenanceand huge work amount caused by the construction of an ultra-high lightning protection tower in the field for the ultra-large radar with the height being over 45m in the prior art, and thus effectively reduces requirements for the field infrastructure and area of the ultra-large radar.

The invention discloses a thunder and lightning protection-based spatial optimization arrangement method for a large-scale wind power plant. Based on a physical model of thunder and lightning leader progression, a calculation method for a dynamic striking distance of fan blades is given. An electric geometric method is combined with the physical model of the thunder and lightning leader progression; an electric geometric analysis model for the fan blades is built; by utilizing the electric geometric model of the fan blades, a protective range of a blade lightning protection system is given; thunder and lightning between fans of the large-scale wind power plant are calculated in a mutual shielding manner; and a fan arrangement interval of the wind power plant is determined from the perspective of thunder and lightning protection. The method can reduce the lightning stroke number of the wind power plant on the whole and has a certain positive effect on stable operation of the wind power plant.

The invention provides a carbon nanotube/carbon fiber composite material as well as a preparation method and application thereof. The carbon nanotube/carbon fiber composite material sequentially comprises a carbon nanotube supersequential thin film layer, an insulating protective layer and a carbon fiber prepreg layer containing a carbon nanotube array from top to bottom. The carbon nanotube/carbon fiber composite material disclosed by the invention has excellent interlayer fracture toughness and high surface conductivity, and the carbon nanotube and the carbon fiber composite material are high in binding power, so that the lightning protection effect of the composite material can be effectively improved.

The invention discloses an anti-thunder and anti-icing suspension type composite insulator for a 10 kV transmission line. The composite insulator comprises a mandrel, a composite insulator assembly, an insulating shed housing, a ball socket fitting and a ball head fitting, wherein the composite insulator assembly comprises a lower conductive heel block, a metal oxide resistor disc group and an upper conductive heel block which are sequentially arranged on the mandrel in a sleeving manner and are tightly attached; the composite insulator assembly is wrapped with the insulating shed housing; an insulating layer is arranged between the composite insulator assembly and the insulating shed housing; the ball socket fitting penetrates through the insulating shed housing and is in threaded connection with the upper conductive heel block; the ball head fitting penetrates through the insulating shed housing and is in threaded connection with the lower conductive heel block; two ends of the mandrel are connected with the ball socket fitting and the ball head fitting respectively. The anti-thunder and anti-icing suspension type composite insulator for the 10 kV transmission line has the advantages of good anti-thunder and anti-icing effects, simplicity and convenience in installation, long service life, facilitation of reconstruction of a conventional electric transmission line and the like.

Disclosed is a lightening current drainage stripe. According to the lightening current drainage stripe, the stripe-shaped current drainage stripe body is provided with a plurality of groups of metal pieces, insulating mediums are filled around the metal pieces, both sides of every metal piece are covered by thin bonder layers, and the back surface of an insulating base stripe is provided with double-faced adhesive tapes. The manufacturing method of the lightening current drainage stripe comprises the steps of 1) manufacturing a polyester film into a long stripe serving as the insulating base stripe; 2) laser-cutting or wire-cutting out the metal pieces with both sides connected from a metal sheet; 3) filling bonders containing metal powder into the cut-out portions of the metal sheet; 4) after the bonders solidify, cutting the metal sheet into stripes, wherein every stripe comprises a plurality of groups of the metal pieces, and the metal pieces are connected through the bonders; 5) adhering the stripes onto the insulating base strip; 6) applying bonders on both sides of the stripes, cover both sides of the metal pieces through the bonder layers and exposing the round portions or the diamond-shaped portions in the middles of the metal pieces; 7) fixing the metal pieces onto the insulating base stripe through solidification of the bonders; 8) adhering the double-faced adhesive tapes onto the back surface of the base strip. The lightening current drainage stripe is good in protecting effects, long in service life, simple in structure and easy to machine and operate.

The invention discloses a lightning stroke resistant metal unit capable of changing a lightning attachment point. The lightning stroke resistant metal unit capable of changing the lightning attachmentpoint comprises a plurality of lightning stroke resistant unit repeating structures which are arranged in sequence in the form of a matrix; the lightning stroke resistant unit repeating structures are in spiral shapes; the lightning stroke resistant unit repeating structures are specifically formed by winding single metal wires; the invention further discloses a preparation method of the lightning stroke resistant metal unit capable of changing the lightning attachment point. The preparation method of the lightning stroke resistant metal unit capable of changing the lightning attachment pointcomprises the steps of preparing CAD models, and then pressing the CAD models into the repeating structures by using a punching machine, and finally, forming the lightning stroke resistant through annealing treatment. The lightning stroke resistant metal unit capable of changing the lightning attachment point has the advantages of simple structure, low cost and convenient use; and the lightning stroke resistant metal unit capable of changing the lightning attachment point can provide a good lightning protection effect for a composite material and finally change the attachment point and the conducting direction of lightning; and by changing the shape, number of turns, wire diameter, distance and so on of the lightning stroke resistant unit, the capacitance and inductance of the lightning stroke resistant can be adjusted so as to control the intensities of a surface induction electric field and a magnetic field and the offset distance of the lightning attachment point.

The invention relates to a high-voltage lightning protection cable, which is characterized by comprising a plastic internal stay core, an electric conductor twisting layer, a crosslinking polyethylene insulating layer and a weatherproof polyethylene sheathing layer, wherein the electric conductor twisting layer is coated on the plastic internal stay core, the crosslinking polyethylene insulating layer is coated on the surface of the electric conductor twisting layer, and the weatherproof polyethylene sheathing layer is coated on the surface of the crosslinking polyethylene insulating layer. The high-voltage lightning protection cable has the characteristics of scientific structure design, good lightning protection and shielding effects, and excellent weatherproof and anti-corrosive properties, thus the high-voltage lightning protection cable can be widely applied to various harsh environment conditions.

A high-voltage electric power steel tower displacement detecting device based on a high-precision Beidou system of the invention relates to a displacement detecting device, which is particularly suitable for monitoring high-voltage electric power steel towers in remote areas. The high-voltage electric power steel tower displacement detecting device comprises a battery management module and a Beidou module; the battery management module comprises lithium batteries and a charging control sub-module; and the BeiDou module comprises an antenna, a radio frequency sub-module, a control sub-module, an RDSS function sub-module, and an RNSS/GPS sub-module. According to the high-voltage electric power steel tower displacement detecting device based on the high-precision Beidou system, the device ischarged by solar energy, and the battery does not need to be replaced, a calculating integration between an RDSS algorithm and a control unit, and a GPS and a Beidou algorithm is realized by the Beidou module; and centimeter-level positioning accuracy can be achieved by using an RTK carrier phase difference technology, and the detecting interval and the threshold can be set by users.

The invention relates to a method for manufacturing an outdoor power distribution box, in particular to a method for manufacturing a novel SMC composite outdoor power distribution box. On the basis ofthe main structure of a conventional SMC composite material, glass fiber is subjected to surface metallization treatment. At the same time, a certain amount of iron-based amorphous alloy powder and iron-based nanocrystalline alloy powder are added to a resin matrix to modify the resin matrix, and a novel SMC composite material slab is prepared by a pultrusion process and further the novel SMC composite material outdoor power distribution box is prepared through assembling. Compared with the prior art, the outdoor power distribution box produced by the method of the invention has the advantages of low cost, corrosion resistance and aging resistance, and has the advantages of excellent electrical conductivity, and excellent lightning protection and electromagnetic shielding performance, andis more suitable for being used in the manufacturing method of the power distribution box.

The invention discloses a preparation method of a lightning protection composite material based on the thermal insulation mechanism and the insulation mechanism, and belongs to the technical field ofcomposite materials. The preparation method comprises the steps of preparing carbon nano tube film; using a spinning machine to prepare thermoplastic polyimide electrostatic spinning film; preparing acarbon fiber reinforced resin prepreg plate, spreading the thermoplastic polyimide electrostatic spinning film and the carbon nano tube film over the prepreg plate in sequence, carrying out vacuum hot pressing, and carrying out cooling to the room temperature to obtain the carbon fiber reinforced resin lightning protection composite material with the carbon nano tube film and the thermoplastic polyimide electrostatic spinning film. According to the lightning protection composite material based on the thermal insulation mechanism and the insulation mechanism, and compared with a carbon fiber reinforced resin composite material, the electrical conductivity is obviously increased, and it is beneficial for improving the lightning protection performance of the composite material; and the preparation method is suitable for preparing the lightning protection material.

A thunder and lightning online monitoring system of a wind turbine generator system comprises an optical sensor, a thunder and lightning analyzer, a master control system, an optical fiber and the Ethernet, wherein the optical sensor is in communication with the input end of the thunder and lightning analyzer through the optical fiber, and the output end of the thunder and lightning analyzer is in communication with the master control system through the Ethernet. The optical sensor collects thunder and lightning signals only through optical measurement and signal transmission. The thunder and lightning signals output by the optical sensor are transmitted to the thunder and lightning analyzer through the optical fiber, and the thunder and lightning analyzer analyzes the received thunder and lightning signals into thunder and lightning signal data and outputs the thunder and lightning signal data. The Ethernet transmits the thunder and lightning signal data output by the thunder and lightning analyzer to the master control system. According to the system, the capacity of the wind turbine generator system to resist thunder and lightning risks is improved, and losses, caused by thunder and lightning, of the wind turbine generator system are reduced.

The invention relates to a rotor blade of a wind turbine, comprising at least one belt (2), and at least one protective layer (4) that is positioned on the at least one belt (2) on the rotor blade outer side, said at least one protective layer (4) being designed to be electrically conductive and connected to a lightening conduction element (16), wherein at least one electrically insulating insulator layer (3) is arranged between the at least one protective layer (4) and the at least one belt (2).

The invention discloses a 720-degree panoramic outdoor intelligent integrated monitoring terminal. The 720-degree panoramic outdoor intelligent integrated monitoring terminal is applied to monitoring a power transmission line. The 720-degree panoramic outdoor intelligent integrated monitoring terminal comprises a fixed frame, a monitoring terminal body, a solar cell panel and a PCB, wherein the monitoring terminal body, the solar cell panel and the PCB are installed on the fixed frame; the solar cell panel supplies power to the monitoring terminal body and the PCB; a processor connected with the monitoring terminal body is arranged on the PCB; the monitoring terminal body comprises a spherical shell, six cameras and a battery pack, wherein the six cameras are arranged in the spherical shell and vertically arranged in north, south, east and west azimuthal angles; the battery pack supplies power to the cameras; and the battery pack is connected with the solar cell panel. The monitoring terminal body is provided with the cameras vertically in north, south, east and west azimuthal angles; therefore, whether climbing of a person below a pole tower or landing of flight equipment, such as an unmanned aerial vehicle, from the top of the pole tower can be clearly observed; a dead-angle-free observation angle can be realized; the 720-degree panoramic outdoor intelligent integrated monitoring terminal can be completely adaptive to various outdoor environments; and long-time working can be kept.