188results about How to "Lightning protection" patented technology

A separable blade for a wind turbine, the separable blade being divided at a center part thereof in a longitudinal direction into an inner blade portion corresponding to a blade root side and an outer blade portion corresponding to a blade end portion, wherein the separable blade is structured by joining the inner blade portion and the outer blade portion with a joining member made of metal, the separable blade includes: a metal plate placed between the inner blade portion and the outer blade portion and electrically connected to the joining member; and an in-blade electrical conduction wire arranged to extend from the metal plate through a blade root part of the inner blade portion to outside of the blade.

LED lighting systems and methods for retro-fitting existing lighting systems such as acorn and other globe style fixtures is disclosed. The retro-fit systems can be provided with an LED driver, an adaptor casting which mounts to industry standard fixture, a riser for adjusting the height of the lighting fixture, and an assembly of an optically active sealing lens, a heat sink and a LED board, wherein the LED lights, which can be made up of a plurality of LEDs, are arranged in concentric rings on the LED board, and are fitted with a sealing lens in the form of a rotated bubble optic with concentric grooves on the inner surface.

The agent mainly consists of electrode graphite and cement, which is an ideal conduction material for earthing and has low resistivity for durative action and stability service. It can satisfy earthing protective requirements for various electric or microelectronic equipment with in quite long period under the various environmental conditions.

The invention relates to a wind turbine blade with a lightning protection system, the lightning protection system comprises at least one lightning receptor arranged freely accessible in or on the shell unit surface at or in the immediate vicinity of the tip of the blade. The lightning protection system further comprises a lightning down conductor made of electrically conductive material extending within the shell body from the lightning receptor to the root end of the blade. The lightning receptor and the lightning down conductor are electrically connected. The shell body comprises at least a first conductive layer extending along at least a longitudinal part of the lightning down conductor in a transverse distance therefrom. The first conductive layer is electrically isolated from the lightning down conductor and from the lightning receptor, and has a sheet resistance in the range 1-5 Mega Ohm per square.

The invention discloses a GPS-based concrete transport vehicle monitoring system, including a GPS vehicle-mounted terminal installed on a transport vehicle and a monitoring center located in a production base. The GPS vehicle-mounted terminal includes a GPS receiver, a GPRS transceiver module, a serial communication module, a control module, a backup power source and a peripheral device. The monitoring center includes a communication server, a monitoring terminal, a data server and a projector. In addition, the invention also provides a method for the GPS-based concrete transport vehicle monitoring system. The invention can not only track the vehicle moving route in real time and correct the wrong route of the vehicle in time, but also can quickly find that the oil of the transport vehicle is stolen, and can instruct the vehicle or directly lock the vehicle when the GPS vehicle terminal fails or is artificially destroyed, so that a large-scale transport fleet is effectively monitored, and the safety, the convenience and the high degree of automation are achieved. The scheme can be applied to the technical field of concrete production and transport management.

A wind turbine blade with a lightning protection for a blade with a shell body has at least one lightning receptor arranged freely accessible in or on a surface of the shell body surface, and a lightning down conductor electrically connected to the lightning receptor and comprising an inner conductor made of electrically conductive material imbedded in a bedding insulation made of an electrically non-conductive material. The lightning down conductor further includes a first conductive layer having a resistance in the range of 10 to 10,000 Mega Ohm per meter (MΩ / m). The first conductive layer is located in a transverse distance from the inner conductor and being electrically isolated from the inner conductor.

The present invention relates to a coupler for a corrugated pipe that is provided with a sealing member mounted inside a fastening member and made of a softer metal material than the corrugated pipe, thereby preventing the fastening member from being damaged due to the fastening force of a cap nut, and that is provided with a grounding portion formed at the front portion of a metal sleeve in such a manner as to enter a coated layer of a composite member and to be grounded to a metal braided net of the composite member when the cap nut is fastened, thereby protecting the corrugated pipe from lightning.

A vacuum load switch is prepared as series-connecting isolation blade switch to vacuum arc distinguishing chamber, drive-connecting insulation drawing rod of isolation blade switch and insulation drawing rod of arc distinguishing chamber to operation mechanism, firm-sealing isolation blade seat and vacuum arc distinguishing chamber as well as bottom wire outgoing seat together, series-connecting fuse between bottom wire outgoing seat and cable outgoing plate.

A separable blade for a wind turbine, the separable blade being divided at a center part thereof in a longitudinal direction into an inner blade portion corresponding to a blade root side and an outer blade portion corresponding to a blade end portion, wherein the separable blade is structured by joining the inner blade portion and the outer blade portion with a joining member made of metal, the separable blade includes: a metal plate placed between the inner blade portion and the outer blade portion and electrically connected to the joining member; and an in-blade electrical conduction wire arranged to extend from the metal plate through a blade root part of the inner blade portion to outside of the blade.

The invention provides a substation distribution room full-view inspection-tour monitoring system and a management method of the substation distribution room full-view inspection-tour monitoring system, and belongs to the field of substation distribution room full-view inspection-tour monitoring systems. The substation distribution room full-view inspection-tour monitoring system comprises a terminal control system, a branch-shaped looped-network optical-fiber communication system and a dispatching monitoring center. According to the substation distribution room full-view inspection-tour monitoring system, dispatching personnel in front of a dispatching computer can remotely see voltage values, current values, power values, phase-angle values and power factor values of power supply circuits, the input and exit situation of the protection function and a protection constant value of a switch, the working state of the switch and the on-site video of electricity transformation and distribution switching stations, and send a remote-control instruction to a high-voltage switch, and the five-remote-control function which integrates telecommands, telemetering, remote control, remote regulation and remote vision is achieved.

The invention discloses a connection device for composite nodes and an assembly method for the connection device. The connection device is connected between a composite main rod and each of one or more composite auxiliary rods crossed with the composite main rod. The connection device is characterized in that the connection device is of a hoop structure; the hoop structure is formed in a way that a main sleeve with the inner diameter matched with the outer diameter of a connection section of the composite main rod is crossed with one or more auxiliary rod sleeves with the inner diameters matched with the outer diameters of the connection sections of the composite auxiliary rods and is integrated with the one or more auxiliary rod sleeves through a vacuum auxiliary preformation process; a self-locking mechanism is also mounted in an inner cavity formed at the composite part of the main sleeve and the auxiliary rod sleeves; the connection device is convenient to assemble and novel in structure, and an exposed metal connecting piece is inexistent on the outer surface of the joint; the connection belongs to a non-damage connection; the connection device can be used for connecting one main rod with two composite auxiliary rods, is simple to maintain, safe to operate and suitable for a larger load bearing occasion, has an anti-thunder effect and can meet the connection requirements in the absence of the metal connecting piece and a large bearing load at the same time.

Aiming at thunderstroke disasters, the traditional lightning rod has a certain function within a certain range, but thunderstroke disasters sometimes occur due to limited geometric length, small covering area, no electric charge leakage in cloud layers in advance and nothing about thunderstorms in high-altitude cloud layers. After the laser active anti-thunder device is adopted, when a certain amount of electric charges is concentrated in cloud layers, a laser 4 enables the emitted laser beams 5 to pass through an interceptor 8 and generate a conductive ion column 6 (ion conduction passage) so that a charged cloud layer 7 is connected with the interceptor 8 and a groundwire 10 to form a short-circuit bleeder circuit. The electric current in the cloud layer is leaked to the ground so as to avoid thunderstroke accidents. The device is applied to the fields of thunderstroke area, airport, missile, aerospace base, large-scale load-center substation, transmission substation, etc., which has the advantages of that the large covering range of anti-thunderstroke can leak the electric charge in cloud layers in advance and that the high cost performance can more effectively eliminate the thunderstroke disasters.

A circuit for exciting at least one DC sensor is provided in which the circuit has a digital regulation controller connected to a main system and to a regulation loop. The main system has a DAC connected to the sensor via a non-inverted amplified path and via an inverted amplified path in order to send sensor excitation signals including a DC component in differential mode. The regulation system includes an ADC connected to the amplified paths. The circuit includes a monitoring system that is connected to the controller in parallel with the converter in order to send signals as a function of an AC component of the signals taken from the amplified paths. The digital controller is arranged to inject a sinewave in common mode into the excitation signals and to analyze signals output by the monitoring system and signals output by the ADC.

The invention discloses a cable pipe sleeve suitable for a cable structure system, a multi-functional outer casing pipe containing the cable pipe sleeve and a cable structure. The cable pipe sleeve suitable for the cable structure system comprises a cable pipe sleeve body, the cable pipe sleeve body is spliced by a plurality of assembly units arranged in the circumferential direction of the cablepipe sleeve body,one or more installation structures for installing function units are machined on the pipe walls of one or more assembly units, and the installation structures comprise installation grooves which are formedin the axial directions of the assembly units at intervals and connecting holes for communicating the installation grooves. According to the cable pipe sleeve suitable for the cable structure system, the multi-functional outer casing pipe containing the cable pipe sleeve and the cable structure, the structure is simple, use is convenient, by designing the cable pipe sleeve body as the assembly units which can be mutually spliced in the circumferential direction and the radial direction of the cable pipe sleeve body, it is ensured that the assembly units are independent of oneanother, and thus the cable pipe sleeve is transported, assembled and replaced conveniently.

The invention discloses a lightning arrester of a blade of a wind-driven generator, and belongs to novel-material lightning arresters of blades of wind-driven generators. The lightning arrester of the blade of the wind-driven generator comprises the blade of the wind-driven generator, and is characterized in that a lightning arrester body of the blade is arranged at a tip of the blade of the wind-driven generator, aluminum, magnesium and copper alloy pieces adhered with one another via epoxy resin are subjected to die-casting to form the lightning arrester body of the blade, the lightning arrester body of the blade is connected with cables by cable fixing bolts, and the cables are connected with middle receivers and are connected with a main cable of a lightning protection device connected onto a support of the wind-driven generator. The lightning arrester of the blade has the advantages that the lightning arrester is excellent in conductivity, good in corrosion resistance and lightning protection effect and long in service life, and is a novel critical product for guaranteeing the blade of the wind-driven generator against lightning stroke.

The invention provides a novel grounded resistance-reducing agent and a novel grounded resistance-reducing module, which are characterized in that a non-metallic conductive material in the novel grounded resistance-reducing agent and the novel grounded resistance-reducing module is microcrystalline graphite. The novel grounded resistance-reducing agent mainly comprises the non-metallic conductive material namely the microcrystalline graphite and an alkaline gelling material; and the novel grounded resistance-reducing module mainly comprises the non-metallic conductive material namely the microcrystalline graphite, an adhesive and a metal component. An attached drawing is an abridged general view of the novel grounded resistance-reducing module, wherein 1 is a resistance-reducing module, and 2 is an extended part of the metal component. The novel grounded resistance-reducing agent and the novel grounded resistance-reducing module have low electrical resistivity, are long-acting, stable, nontoxic and harmless, can be suitable for meeting requirements on long-acting ground protection of an electrical appliance and a building under the conditions of various atrocious climates and various geologic environments, have low production costs, are simple and convenient to implement, have abundant raw material sources, and are ideal grounded conducting materials.

The invention provides an online fault monitoring method for a lightning arrester. The method comprises the following steps of: receiving report information which at least comprises a voltage value and / or a current value and is sent by one or more feeder terminals through a wireless communication module in real time, calculating a difference value between the voltage value or the current value anda preset voltage value or a preset current value, and determining whether the difference value exceeds a preset error range or not; and if the difference value exceeds the preset error range, determining that lightning arresters where the feeder terminals corresponding to the reported information are located fail. The remote monitoring platform is used for monitoring the fault condition of each lightning arrester in real time; once a fault occurs, the faults of the lightning arresters can be quickly determined and the positions of the faulted lightning arresters can be positioned, maintenancepersonnel can quickly maintain the lightning arrester, time for troubleshooting fault points one by one due to faults of the lightning arrester in the prior art is greatly saved, the fault lightningarrester can be quickly replaced, a transformer or a line can be prevented from being struck by lightning to the maximum extent, and possible large-area power failure can also be avoided.

The invention relates to a wind vane, in particular to a multifunctional wind vane. The multifunctional wind vane comprises a supporting seat, a master bracket, a wind vane, wind power vane, a wind power gauge, a wind cup and a lightning rod, wherein the master bracket is vertically arranged on the supporting seat; the wind vane is transversely and fixedly arranged on the master bracket; the wind power vane is transversely arranged on the master bracket and is higher than the wind vane; the wind power gauge is arranged on the master bracket and is higher than the wind power vane; the wind cup is arranged at the top end of the master bracket; and the lightning rod is vertically arranged on the wind cup. The multifunctional wind vane integrates meteorological observation and interesting scientific display, can measure instantaneous wind direction and instantaneous wind power and mark all directions, and adopts scientific lightning-protection design.

"Integral structure, automatic shock-absorbing building" consists of the overall steel structure frame, interior and exterior decoration of the building, automatic shock-absorbing system, horizontal and vertical linkage levers and structural parts outside the building; it can automatically absorb shocks in a major earthquake, but cannot The destruction and collapse of the overall structure cannot cause casualties and deaths. In the design of the main building, bricks and cement in the current construction industry are not used, and all new building materials in the building materials market are used for decoration. This can solve the problem of construction problems. The heavy manual labor problem that the industry has not solved for thousands of years can be factory-produced and installed at the construction site when the number of buildings is large.

The invention discloses a wireless ad hoc network-based wireless repeater, which comprises a processor, a signal receiving unit, a signal data replication unit, a signal screening unit, a signal adjustment unit, a signal transmitting unit, a lightning-proof surge unit, a voltage stabilizing unit and a constant temperature control unit, wherein each functional unit is connected with the processor respectively; and the signal adjustment unit comprises a filter circuit, a signal attenuation compensation circuit, a signal error correction circuit and a signal amplifying circuit. According to the wireless repeater, the lightning-proof surge unit, the voltage stabilizing unit and the constant temperature control unit are arranged in the wireless repeater, so that lightning strike can be effectively prevented, stable working voltage and working temperature can also be provided for an internal circuit of the repeater, a stable working environment is provided for each circuit element for constituting the control circuit, a better protection effect on the repeater is realized, the environmental adaption capacity of the repeater is improved, and the service life of the repeater is prolonged.

The invention relates to a monitoring and positioning device for leakage of a gas delivery pipe. The monitoring and positioning device comprises a monitoring host, a monitoring extension set and piezoelectric ceramic sensors, wherein the piezoelectric ceramic sensors are arranged at two ends of a gas pipe, the monitoring extension set is connected with the monitoring host in a communication way, a GPS (global positioning system) antenna is installed on the monitoring extension set, the piezoelectric ceramic sensors are arranged on gas pipes at the initial station and the terminal station, a signal amplifier is connected at the rear end of the piezoelectric ceramic sensor, the signal output end of the signal amplifier is connected with a data acquisition card of the monitoring extension set, and the audio receiving frequency of the piezoelectric sensor is 0.1Hz-10Hz. The monitoring and positioning device can sample and distinguish infrasonic wave of frequencies of 0.1Hz-10Hz in the gas pipes and are used for online monitoring on gas leakage. Proved by practice, the accuracy of the device on judging leakage can reach more than 98 percent; and compared with existing leakage monitoring devices, the device has considerable progress no matter in distinguishing efficiency or feasibility.

The invention discloses a wind energy and solar energy integrated power generation device with a lightning arrester. Solar rays irradiating in parallel are gathered through a convex lens glass plate, and therefore the light ray absorbing rate is increased; a solar cell movable plate is turned over through a cylinder, and therefore sunlight can irradiate the solar cell movable plate, the solar energy utilizing rate is increased, and the power generation amount is increased; and the solar cell movable plate is put away through the cylinder, and therefore vegetation on the ground cannot be shielded and can normally grow. A wind direction sensor can induct the wind coming direction, the wind direction sensor is in communication connection with an electric annular track, a sliding block on the electric annular track is made to drive a windmill power generation device to slide along the electric annular track, blades of the windmill power generation device face the wind coming direction all the time, and therefore the power generation efficiency of the windmill power generation device can be maximum, and wind energy can be utilized to the maximum extent. Under the action of the lightning arrester, lightning stroke can be effectively prevented, and safety of the whole power generation device is improved.

The invention relates to the field of automatic control, in particular to a water level control method and a water level control device for a control signal acquired from the earth. An AC 220V power supply is input through a first step-down circuit of an L line and a second step-down circuit of an N line which is symmetrical about the L line, then rectified through a rectifying circuit and subjected to voltage stabilization through a filter voltage stabilizing circuit, and then provides a stable direct voltage for a post-stage executive circuit. When a water level in a container is lower than a low water level, a high water level electrode and a low water level electrode are exposed out of the water surface; a load pump is communicated with the AC 220V power supply, the pump is electrified to start to pump water, and the water level gradually rises; when the water reaches the high water level, the high water level electrode is immersed by the water, then the load pump is not electrified to stop pumping the water, and the water level is controlled at the high water level; and the water is discharged from the container and the water level is gradually declined, the high water level electrode is exposed out of the water surface, a second executive switch is on, a first executive switch is off, and the water level continues to decline, when the water reaches the low water level, a control system is reset to an original state.

The invention relates to an optical fiber used in an outdoor system and an indoor system of a fiber-to-the-x (FTTx) network project in a communication network, fiber reinforced plastics used by the optical cable and a preparation method of the fiber reinforced plastics. As for the optical cable, at least one optical fiber is coated with a reinforced sheath which is the fiber reinforced plastics and is externally coated with a protecting jacket. The fiber reinforced plastics comprise the following components in parts by weight: 13-25 parts of light-cured resin and 75-87 parts of fiber yarn. The preparation method of the fiber reinforced plastics has the following steps: a, placing the light-cured resin in a constant temperature cabinet at the temperature of 70-90 DEG C for 1-2h; b, placing the light-cured resin and the fibre yarn in a solution tank for evenly mixing; c, pulling and extruding into a formed rod piece by a pultrusion module; and d, placing the formed rod piece in an ultraviolet curing oven for curing for 0.3-12s. The invention improves the safety protection performance of communication facilities and user terminal equipment; and the optical cable with fine diameter and small radium of curvature can satisfy the special requirements of easy branching, easy access and convenient construction in the FTTx network project.

The invention discloses a telescopic solar energy power generation device with lightning protection, wind power generation and light collecting mirror functions. Parallel irradiation sunlight is collected through convex lens glass plates, so that a light absorption rate can be improved; first electric telescopic rods and second electric telescopic rods can extend out, so that solar cell movable plates can be moved to the outside of a solar cell substrate, and therefore, sunlight can directly irradiate on the solar cell movable plates, and the utilization rate of solar energy can be improved; the first electric telescopic rods and the second electric telescopic rods can contract, so that the solar cell movable plates can be moved to positions below the solar cell substrate, and vegetations on the ground will not be blocked, and the vegetations can grow normally, and water and soil erosion can be prevented; the blowing direction of wind can be sensed through a wind direction sensor, and the vanes of a windmill power generation device can constantly face the blowing direction of the wind by means of an electric circular track, and the power generation efficiency of the windmill power generation device can be maximized, and the utilization of wind energy can be maximized; and by means of the effects of a lightning rod, lightning strike can be effectively prevented, and the safety of the entire power generation device can be improved.

Central single household intelligent solar energy hot water producing system, the invention relates to a solar energy hot water producing system which installs heat collector collectively, installs single family water storing tank collectively, supplies hot water single family and is used by individual family. The prior various solar water heaters have many practical problems, such as messy placing on roof, influencing townscape, destroying the roof waterproof layer easily, increasing the roof load, over long pipes for medium and low layer users, not ideal use in winter, cool water-wasting in pipes when use. The single family water storing tank unit box in the invention is equipped with heat-insulating layer in and out itself, the vacuum heat-collecting tube is equipped with superconducting heat-exchanging pipes in itself, the system is equipped with intelligent control equipment, two tanks are equipped with electric heater and water level temperature control sensor. The pipelines are equipped with magnetic valves and water flow sensors. The present invention is characterized by: high automation level, actual automatic water-filling, timing water-filling, and automatic water emptying in pipes after uses. Due to the superconducting heat-exchanging pipes, the water temperature is raised fast. In addition, since the single family heat collector and single family water-storing tank are installed collectively, they look regular and ordered, the system can ensure each family can use solar energy hot water and the water waste problem is solved.

A terminal box comprises a box body, a cover disposed on the box body, a temperature sensor disposed inside the box body, a humidity sensor disposed inside the box body, and an air conditioner disposed inside the box body. The cover is funnel shaped and provided with a central through hole which is connected with one end of a drain pipe. The other end of the drain pipe is arranged outside the box body. An air conditioner drain pipe is connected with the drain pipe. The box body is provided with the funnel-shaped cover which can effectively collect rainwater, and the rainwater is prevented from flowing to the body of a maintainer; when the interior humidity of the box body measured by the humidity sensor reaches a certain value, the air conditioner inside the box body is capable of automatically removing water to prevent too high interior humidity of the box body from affecting operation of the components inside the box body; when the interior temperature of the box body measured by the temperature sensor reaches a certain value, the air conditioner starts a cooling function and ensures the electric components never fail due to too high temperature; a blind window allows heat generated in the terminal box to dissipate out and also prevents lightning stroke in thundery seasons.

The invention relates to a lightning protection automatic switch for a satellite television receiver, which comprises a shell, wherein both ends of the shell are respectively provided with an external terminal which is connected with an external cable; the other end of the external terminal at one side is provided with an on-off interface, and the other end of the external terminal at the other side is connected with an internal cable; a guide rail assembly is arranged in the shell; a drive mechanism is installed on the guide rail assembly and is connected with the external terminal at the other side by the internal cable; a control circuit board and a motor controlled by the control circuit board are arranged on the drive mechanism; and one end of the drive mechanism is provided with a contact terminal which is matched with the on-off interface. The invention ensures that a receiver and connected equipment thereof can not be damaged by lightning overvoltage and lightning current when a satellite antenna is subjected to lightning stroke, and solves the technical problem of poor lightning protection effect and easiness for causing personal injury by plugging and drawing a plug every time in the prior art.

The invention discloses a lightning rod with a twin-ion ESE (early streamer emission) lightning protection system. The twin-ion ESE lightning protection system mainly comprises a lightning rod assembly and a holder assembly. The lightning rod assembly comprises a master rod assembly and a slave rod assembly. The master rod assembly further comprises a master rod body and a master rod disposed at the upper end of the master rod body. The slave rod assembly is disposed below the master rod assembly and further comprises a slave rod body and a plurality of slave rods arranged above the slave rod body. The holder assembly is disposed below the lighting rod assembly. By the design of the slave rod assembly, the slave pins are circularly arranged at the lateral edge of the master pin of the twin-ion ESE lightning protection system. Lateral lightning stroke is prevented by twin-ion ESE, so that omnibearing lightning stroke prevention is achieved.