72results about How to "Eliminate sparks" patented technology

The invention relates to vacuum coating magnetron sputtering deposition technology, and particularly a device and a method for depositing a film on a SiC fiber surface; on one hand, a film with a uniform thickness is deposited on a continuous SiC fiber surface; on the other hand, the problem of target material poisoning of compound film deposition is solved, and the continuity and stability of the deposition process is realized. The device is provided with a target material I, a target material II, a workpiece rotating shelf, an intermediate-frequency pulsed magnetron sputtering power supply, a magnetron sputtering vacuum chamber; the workpiece rotating shelf is disposed in the magnetron sputtering vacuum chamber; the target material I and the target material II are facingly disposed inside and outside the workpiece rotating shelf in the magnetron sputtering vacuum chamber; a cathode of the intermediate-frequency pulsed magnetron sputtering power supply is connected to the target material I; and an anode of the intermediate-frequency pulsed magnetron sputtering power supply is connected to the target material II. According to the invention, the gas flow, the reaction gas types, the sputtering time and the like in the vacuum chamber of the magnetron sputtering device are adjusted so as to realize the deposition of metals or compound films with different types and different thicknesses on a continuous SiC fiber surface, and to realize the surface modification of the SiC fiber.

The invention discloses a contactless power supply coupling device for a magnetic-levitation train and the magnetic-levitation train. The contactless power supply coupling device for the magnetic-levitation train comprises an emitting end and a receiving end, wherein the receiving end is formed by connecting multiple turns of rectangular coils spirally in series; the receiving end is arranged below a levitation electric magnet on one side of the train through a receiving end support which is parallel to the ground; the emitting end is formed by two parallel long straight cables; the initial ends of the two long straight cables are connected with the output end of an inverter; the tail ends of the two long straight cables are connected; the emitting end is arranged on the outer side of a guide rail through an emitting end support in a manner of being parallel to the ground; the guide rail is located on the same side of the train as the levitation electric magnet for assembling the receiving end; and the emitting end is right below the receiving end. According to the contactless power supply coupling device, a train body is not changed in large scale, and power supply for the intermediate speed magnetic-levitation train is realized. Information about a clearance between the emitting end and the receiving end is obtained through arrangement of existing levitation sensors, and arrangement of special sensor components is avoided, so that cost is effectively reduced, and the dead-weight of the train body and maintenance management work load are lowered.

A high-voltage bushing includes a housing and a tube disposed within the housing. A conductor is disposed within the tube. An electrically conductive contact member is connected to the tube and has a first opening to receive and contact the conductor. Accordingly, spark-over between the inner surface of the tube and the outer surface of the draw-lead cable caused by a high-frequency transient is substantially prevented.

This invention relates to a DC motor with a commutator and a washing machine driven by it. Its brush at the rotor is connected with the phase windings of the pivot phase by phase, the commutator is set at the stator, the positive and negative commutator bars are isolated by continuous commutator bars distributed alternately along the rotary face relating to the shaft. The two bars are connected with the first pole of the power supply device, two semiconductor diodes or valves with the opposite conduction direction to the supply cross over the second pole of the supply after serial connection, its serial points are connected to the continuous commutator bars.

The invention discloses a powder film spraying machine, which is formed by high-pressure static ejection gun, a controller, and a powder charging cylinder. The static ejection gun uses internal-arranged high-pressure generator and 5010A / 5010B epoxide resin to fill the U-shaped iron core frame of voltage transformer of high-pressure generator; the control circuit of static controller uses automatic distance-current-voltage control and presets a maximum irradiation current to confirm the best powder charge amount. When the distance between the ejection gun and work-piece reaches the maximum irradiation current, the reduced distance will cause the automatically reduction of output high pressure and ejection current, or else, the output high pressure and ejection current will increase. At the instant of short circuit between the ejection gun and work-piece, the output is reduced to minimum and it will recover to high pressure output to eliminate the problem of sparking after started.

The invention relates to self-regulated exhaust and explosion protection equipment of a mining diesel engine. The self-regulated exhaust and explosion protection equipment comprises a front exhaust duct, a cooking water jacket, a rear exhaust duct and an expansion waste gas tank, wherein the cooling water jacket is arranged outside the front exhaust duct, the rear exhaust duct and the expansion waste gas tank, the front exhaust duct and the rear exhaust duct are respectively arranged at two ends of the expansion waste gas tank, an unburned material particle cleaning-up hole is arranged at the lower end of the expansion waste gas tank, a fence explosion protection structure is arranged in the expansion waste gas tank, and a temperature sensor is arranged at the rear exhaust duct and connected with an electronic control unit (ECU) by a lead. The self-regulated exhaust and explosion protection equipment can achieve the purpose of regulating flow velocity of cooling water along with working conditions by adopting combined exhaust and cooling technology and controlling the flow velocity of the cooling water by connecting the temperature sensor with the ECU, and ensure the temperature of exhausted waste gas to be always under 70 DEG C in running; and in addition, the waste gas expansion structure can effectively reduce the flow velocity of the waste gas, and fuel particles with sparks in the waste gas cab be collided with the waste gas due to the fence structure, thus achieving the effect of eliminating sparks.

The present invention is a method of controlling the electric field in a corona wind fan to eliminate sparks and thereby increase the operating window and mechanical output of the device. A corona wind device moves a gas using ions that are generated by two electrodes. The electric field in a corona wind system is highly non-uniform. An intense field, of limited size, is needed to generate ions. It is desirable for the remainder of the system to be at as low a field as possible so as to prevent sparks from forming between electrodes. A contoured collector electrode creates this desirable electric field over most of a corona wind device. However, the electric field at the edges and ends of a contoured collector remain as weak points in the device. If not addressed, sparks will form prematurely at these points limiting the overall performance. Several methods to control the field at these points were developed.

The invention provides a strip material electroplating device. The strip material electroplating device comprises a supporting frame, a conductive wheel mechanism, a pressing wheel mechanism and a supporting wheel mechanism, wherein the conductive wheel mechanism, the pressing wheel mechanism and the supporting wheel mechanism are arranged on the supporting frame. A pressing wheel of the pressing wheel mechanism cooperates with a conductive wheel of the conductive wheel mechanism to form a rolling clamping portion. A strip material is clamped by the rolling clamping portion and is in electric contact with the conductive wheel. The rolling and clamping portion has the functions of clamping and guiding and also achieves rolling electric conduction with the strip material. A supporting wheel of the supporting wheel mechanism is located at the bottom of the strip material. The supporting wheel has the function of supporting, achieves rolling guiding of the bottom of the strip material and avoids the bottom of the strip material from conducting electricity. The strip material is not prone to being scratched, and sparks caused by friction are avoided. In this way, the quality problems, such as scratches, scorching, peeling and an uneven plating layer, caused by sliding electric conduction are fundamentally solved.

The invention discloses an intelligent control magnetic field full coverage wireless charging desk comprising a desk body. A glass plate is embedded into one side of a desk top laid on the desk body, and a liquid crystal display is embedded into the other side. A transmitting coil is installed in a drawer below the desk top. A transmitting module and a single chip microcomputer connected with each other are arranged on a partition plate below the drawer. A power line is embedded into the desk top, the input end of the power line is hidden in the edge of the desk body, and the output end of the power line is connected with the transmitting module. A power supply method of the wireless charging desk is further provided. The wireless charging desk of the invention carries out charging by means of magnetic coupling resonance, is safe and non-radioactive, and reduces the risk of electric shock. The working state of the transmitting coil is controlled intelligently, and the power consumption is reduced. The wireless charging desk is universal and portable. The transmission of power is independent of the charging interface of equipment, and power supply and charging are more convenient. There is no conductive contact exposed. The desk top is clean and neat, and green and beautiful, and creates a good vision. The space of the table desk is saved fully.

The invention relates to a waste gas treatment box of a mining anti-explosion diesel engine. The waste gas treatment box comprises a box body, a fire barrier, a mounting support, a gas inlet, a gas inlet pipe, a gas discharging port, a gas discharging pipe, a water injection hole, a water discharging hole, a liquid level sensor and a waste gas temperature sensor, wherein the box body is mainly used for storing water, the liquid level sensor is used for monitoring the water level inside the box body, the fire barrier is used for eliminating sparks in discharged gas, the waste gas temperature sensor is used for monitoring the temperature of the discharged gas, and the mounting support is used when connected with an engine. Thread explosion-separation design is respectively adopted by the water injection hole and the water discharging hole, the gas inlet pipe and the gas discharging pipe are arranged inside the box body and communicated with the gas inlet hole and the gas discharging hole respectively, wherein the gas inlet pipe extends from the upper portion of the box body to the bottom of the box body, a furcation structure is adopted by the lower portion of the gas inlet pipe, and a plurality of through holes are formed in the pipe wall of the furcation structure at the lower end of the gas inlet pipe. The waste gas treatment box of the mining anti-explosion diesel engine is large in water storage capacity, the effects of cooling and sound-eliminating can be improved, the contact area of the waste gas and water is enlarged, the gas discharging resistance is reduced, and the sparks are fully eliminated.

The invention relates to power sockets, particularly to an electric spark eliminating socket and a coating production process. The electric spark eliminating socket is characterized in that the head portions of at least one group of socket contact pieces are coated with resistive layers made of resistive coatings, wherein the resistive coatings are composed of conductive fillings, substrate resin, additives and solvent. The electric spark eliminating socket has the advantages of being capable of eliminating electric sparks generated when a plug is plugged in and pulled out, avoiding corrosion or burnout of the contact pieces and accordingly being applicable to anti-explosion places. The coating process of the resistive coatings is low in cost and high in production efficiency.

This invention relates to one instrument and its method of eliminate the arcing between monofilament by using RF to heating fiber bundle silk. It apply for the processing of preoxidation fiber or carbon fiber. The method is realized by the following procedure: (1) improve the used RF linear highlights heating device, add tow twisting device between send wire agencies and quartz tube thermal reactor. (2) add twisting processing treatment before the Silk fiber bundle enter quartz tube thermal reactor. The twisting device is combined by framework, bottom board set on the framework by using hollow shaft, at least three tension-oriented round fixed in the bottom board and driving mechanism of bottom board (9B rotation driven by Hollow shaft. The silk fiber bundle leads from wire feeding agencies.

The invention relates to the field of automobile spare parts, in particular to an automobile exhaust pipe. The automobile exhaust pipe comprises gas inlet pipes, gas exhaust pipes and gas outlet pipes. The gas inlet pipes comprise the left gas inlet pipe and the right gas inlet pipe. The gas exhaust pipes comprise the left gas exhaust pipe and the right gas exhaust pipe. A communicating pipe which is used for connecting the left gas exhaust pipe and the right gas exhaust pipe and enables the gas pressure in the left gas exhaust pipe and the gas pressure in the right gas exhaust pipe to be communicated is arranged in the middle of the left gas exhaust pipe and the middle of the right gas exhaust pipe. The left gas exhaust pipe and the right gas exhaust pipe are each sequentially provided with a filter device, a three-way catalyst, a silencer and a filter layer below the communicating pipe. The gas outlet pipes are located under the filter layers. The automobile exhaust pipe has the advantages that the gas in the left gas exhaust pipe and the gas in the right gas exhaust pipe can be communicated with each other through the communicating pipe, so that return pressure is balanced, and the phenomenon that the operating condition of an engine is affected due to return pressure difference is avoided; due to the arrangement of the three-way catalysts, harmful gases such as CO exhausted from automobile exhaust can be converted into harmless carbon dioxide, water, nitrogen and the like through the oxidation and reducing action.

The invention discloses a vehicle-mounted positioner and a mining locomotive comprising the vehicle-mounted positioner and belongs to the field of positioning of mining locomotives. The vehicle-mounted positioner comprises a shell body, a circuit board and a battery; the circuit board and the battery are arranged in the shell body; the battery is connected with the circuit board and supplies power to the circuit board; the circuit board is provided with an ultra-wideband module; the ultra-wideband module is connected with an antenna; antistatic paint is coated on the shell body; the antenna is packaged in an antenna shell through waterproof glue. The vehicle-mounted positioner has high positioning precision, wide signal coverage range, wide transmission bandwidth and good expandability; safety and good waterproof effect of the locomotive under a coal mine are guaranteed.

The invention discloses a rapid combustion, purification and regeneration device for black smoke and exhaust gas discharged by vehicles. A gas inlet unit, a combustion unit, a buffer propagating combustion unit, a filter unit, a discharge unit and an automatic control unit are arranged in sequence; the exhaust gas is fed in a combustion cavity in the combustion unit via the gas inlet unit; after fuel is ejected and atomized by a fuel atomizing nozzle not blown by an exhaust gas current, an igniter is immediately fitted for igniting and combusting, and air is input in the combustion cavity for supporting the combustion by using an air pressure pump; the high-temperature exhaust gas is passed through a filter buffer chamber and a propagating combustion chamber of the buffer propagating combustion unit in sequence; the filter buffer chamber is used for primarily filtering the exhaust gas and slowing down the flowing speed of the exhaust gas so as to prevent the backflow of the exhaust gas to blow out the ignited flame; the exhaust gas is fed in the propagating combustion chamber to reduce the backtracking pressure of the exhaust gas, and then is passed through the filter unit and an exhaust tail pipe; and the high temperature of the exhaust gas is used for removing carbon deposition of the filter unit so as to maintain the discharge smoothness of the exhaust gas of a diesel engine.

A method for purifying and muffling exhaust gas from an internal combustion engine, comprising the following steps: 1) allowing exhaust gas discharged by the internal combustion engine to enter into the interior of a housing (6) via an exhaust gas inlet (7) of the housing (6), wherein abrupt expansion of cross section occurs from the exhaust gas inlet (7) to the interior of the housing (6); 2) allowing scrubbing water which can absorb SO2 to enter via a scrubbing water inlet (11), and allowing the exhaust gas in the interior of the housing and the scrubbing water to come into contact with each other, then discharging the scrubbing water via a scrubbing water outlet (12) of the housing; and 3) discharging the exhaust gas via an exhaust gas outlet (10) of the housing. The method simultaneously produces effects of purifying SO2, muffling and saving energy, and eliminates sparks in the exhaust gas. A device and system for purifying and muffling exhaust gas from an internal combustion engine are also provided.

The invention discloses a new energy automobile charging interface automatic on-off control method based on the Internet, and belongs to the technical field of charging interface. According to the newenergy automobile charging interface automatic on-off control method based on the Internet, a new energy automobile charging device is included, the charging device comprises a charging gun main body; the charging gun main bodyis connected with a handle and a power supply line;acontaining groove is dug in the end, away from the power supply line, of the charging gun main body;asealing plate is slidably connected into the containing groove; an accommodating shell is fixedly connected to the sealing plate; a charging head is slidably connected into the accommodating shell; the sealing plate isfixedly connected with a hollow insulating rod; a conductor rod is fixedly connected in the hollow insulating rod; the cable is connected between the charging head and the conductor rod, so that the charging head can be automatically separated when the charging device is pulled, the cable is effectively prevented from being pulled apart, the wiring position of the conductor is comprehensively insulated and closed when the charging head is separated, and electric arcs generated at the connection position of the conductor when the device is abnormally disconnected are effectively eliminated.

The present invention relates to a battery pack capable of improving stability from safety issues occurring in an overcurrent state. The battery pack includes a unit cell, a bus bar electrically connected to the unit cell and short-circuited by overcurrent, and a protection part disposed in the bus bar to absorb spark occurring when the bus bar is short-circuited.

The invention discloses a controllable temperature disc structure provided with a ceramic bush. The controllable temperature disc structure is mainly used to solve a problem of conventional controllable temperature discs of increasing of quantity, difficulty, and costs of processed supporting members caused by increased sparking probability. The controllable temperature disc structure comprises an aluminum disc and the ceramic bush. The aluminum disc is provided with three through holes A and nine through holes B, and the inner part of the aluminum disc is provided with a heat transfer channel, which is provided with an inlet and an outlet. The ceramic bush is provided with a boss and an edge. The inner part of the ceramic bush is provided with three jacking pin sleeve pipes corresponding to the three through holes A, and each jacking pin sleeve pipe is provided with a through hole C. The inner part of the ceramic bush is provided with nine supporting columns corresponding to the nine through holes, and the bottom part of the ceramic bush is provided with a hole A and a hole B. The controllable temperature disc structure is used to eliminate the sparking phenomenon and control the temperature.

The invention discloses a pressure relief and explosion-proof container. The pressure relief and explosion-proof container comprises a top cavity, a cover body and a cylinder body, wherein the cylinder body is connected with the cover body; the top cavity is formed in the cover body; a wire mesh is arranged in the top cavity; explosion flow can penetrate through the wire mesh before rushing out the explosion-proof container. It can be seen from the contents that the explosion flow can rush into the top cavity from the cylinder body when an explosion is caused; and moreover, the explosion flowcan penetrate through the wire mesh before rushing out the explosion-proof container; and therefore, an effect of eliminating explosion venting sparks and explosion venting noises is achieved. Therefore, according to the pressure relief and explosion-proof container, sparks and noises in the explosion venting process can be eliminated, and the difficult problems in the field at the present stage is solved.

The invention discloses an energy-saving environment-friendly circulating fluidized bed system. The circulating fluidized bed system comprises a fluidized bed, a smoke pipeline, a smoke separation device and a waste heat utilization device. The smoke separation device and the waste heat utilization device are arranged in the smoke flow direction of the smoke pipeline sequentially. The smoke separation device comprises a separator body, a high-temperature smoke inlet, a lower exhaust barrel and a material returning outlet. The high-temperature smoke inlet is formed in the side wall of the separator body and connected with the smoke pipeline. The lower exhaust barrel is perpendicularly arranged in an inner cavity of the separator body, a top inlet of the lower exhaust barrel is far away from the top wall of the separator body, and a bottom outlet of the lower exhaust barrel is connected with the waste heat utilization device through the smoke pipeline. The material returning outlet is formed in the bottom of the separator body and connected with a fluidized chamber through a material returning pipe. The waste heat utilization device comprises a dedusting smoke inlet, a low-temperature smoke outlet, a cold air inlet and a hot air outlet. The dedusting smoke inlet is connected with the bottom outlet of the lower exhaust barrel through the smoke pipeline. The low-temperature smoke outlet is connected to a chimney through the smoke pipeline. The cold air inlet is connected with a first fan through a cold air pipeline. The hot air outlet is connected with an air chamber through a hot air pipeline.

The invention provides a safe socket, which comprises a base, power lines and reeds, and is characterized in that a compression spring is connected in an integrated manner inside each of the two reeds at the inner side, a wedge-shaped locking block is arranged between the two compression springs, and the locking block is movably connected in a light hole of a connecting plate of the base through a pressing stand at the upper end. While each plug piece of a plug is inserted into a part between the two reeds of the socket the lower surface of a plug base also presses the wedge-shaped locking block to move downward through the pressing stand, the wedge-shaped locking block extrudes the each compression spring towards the inner side of the corresponding plug piece, and the reeds are tightly pressed against the corresponding plug pieces, so that the firmness of connection between the plug and the socket is increased, looseness of the plug is effective prevented, a phenomenon of sparking and other potential safety hazards are eliminated, and the safety of power utilization is ensured.

The invention discloses a magnetic coupling resonant multi-joint combination non-contact safety socket-plug. The magnetic coupling resonant multi-joint combination non-contact safety socket-plug comprises a combination socket and a matched plug, wherein the combination socket is formed by connecting a plurality of socket unit columns end to end which are consistent in specification; each socket unit column consists of two LC resonators which are consistent in specification and a socket insulating shell; the socket unit columns are encapsulated in the socket insulating shell; inductance coils of the two LC resonators are aligned in parallel in the axial direction, and are positioned at the head parts and the middle parts of the socket unit columns respectively; a slot of the matched plug is formed beside the LC resonator on the head part of each socket unit column; the matched plug comprises a hollow inductance coil L2, a resonant capacitor C2, a leading-out lead and a plug insulating shell; the coil aperture of the hollow inductance coil L2 is less than the aperture of a hollow inductance coil L1, and is encapsulated in the flat-column-shaped plug insulating shell; after the L2 and the C2 are connected in series, two leads are led out and are connected with a power supply emitting circuit or a load receiving circuit. The magnetic coupling resonant multi-joint combination non-contact safety socket-plug has the advantages of easiness in machining, convenience in detachment and assembly, and easiness in carrying.

The invention relates to inserted electrodes of a connector assembly, a socket and a plug, in particular to an inserted electrode without electric sparks and a coating production process. The inserted electrode without electric sparks is characterized in that a resistance layer coated with resistance dope is arranged at the head of the socket or the plug; the resistance dope is composed of conductive filler, matrix resin, aids and solvent. The inserted electrode without electric sparks and the coating production process have beneficial effects that the electric sparks generated by inserting the connector assembly under electrified state are eliminated, the damage to the electrode caused by the electric sparks is avoided, the resistance dope coating technique is used, so that the cost is low, and the production efficiency is high.

The invention belongs to the technical field of nondestructive test, and provides a novel storage tank bottom plate magnetic flux leakage detector. The novel storage tank bottom plate magnetic flux leakage detector comprises a detection host machine; a pair of fixing supports are arranged on the two sides of the detection host machine; the upper part of each fixing support is provided with a fixing plate; each fixing plate is provided with a U-shaped groove; a rotating shaft is arranged on the upper part of each fixing support; and each rotating shaft is connected with a hand push structure. The novel storage tank bottom plate magnetic flux leakage detector is compact in structure design; a folded structure scheme is provided; the novel storage tank bottom plate magnetic flux leakage detector is small in size; operation is simple; and transportation is convenient. In the prior art, when the detection host machine is contacted with steps of overlap welding steel plates, mechanical damage of the bottom of the detection host machine may be caused. The novel storage tank bottom plate magnetic flux leakage detector is provided with hovering functions, detection on the bottom plate withheight change is carried out, so that damage on the detection host machine caused by uneven bottom plate is avoided. In the novel storage tank bottom plate magnetic flux leakage detector, a stroke switch and a solid state relay are adopted, so that electric spark is eliminated, and system safety is increased further.

The invention relates to a circuit for implementing natural rotation and inversion of DC by a PLC control relay, which is suitable for the situation of frequent alteration between natural rotation and inversion of a DC motor. The circuit is mainly composed of a PLC, a control relay, a DC speed regulation plate and a DC motor. The advantage of the invention is that the cost and failure rate are low, the capacity of the control relay contact is reduced, the startup as well as the natural and inverse rotation of the motor are implemented easily, the relay has non pyrophoric behavior, and the service lifetime of the relay is improved greatly.

The invention discloses a novel dust collecting device. The novel dust collecting device comprises a fixed bracket, and a cyclone dust collector unit, a flue gas conveying pipeline and a bag-type dust collector unit which are arranged on the fixed bracket in sequence, wherein a flue gas inlet is formed in the bottom of each cyclone dust collector; the outlet of each cyclone dust collector is communicated with the flue gas conveying pipeline; the middle part of the flue gas conveying pipeline is communicated with each bag-type dust collector of the bag-type dust collector unit in sequence; a flue gas outlet is formed in the tail end of the flue gas conveying pipeline; an air pump power system and a purging system are also arranged in the positions, at the top of the bag-type dust collector unit, of the fixed bracket; the novel dust collecting device provided by the invention has the technical advantages of remarkable dust collecting and purifying effects, high dust collecting quality, low noises, capacity of eliminating sparks and the like.

The invention relates to a switching device for an optical module aging test, an optical module aging device and method, wherein the switching device is used for converting the voltage of an aging power supply into a power supply voltage corresponding to each optical module in a plurality of optical modules connected in parallel, and achieving the one-by-one power-on and communication of all optical modules according to the testing logic of the optical modules; a processing module sequentially enables each voltage reduction module connected with the corresponding optical module according to apower-on signal of the switching device and optical module test logic, so that the optical modules are powered on by the voltage reduction modules one by one; and the processing module receives a testcompletion instruction of a control panel, disconnects the first switch module to realize power failure of the switching device, and closes the voltage output port of each voltage reduction module insequence according to the optical module test logic so as to disconnect the optical modules one by one. The switching device provided by the invention is applied to the aging test of the optical modules, and can solve the problem of surge current when existing optical modules are powered on / off.

The invention relates to power plugs, particularly to an electric spark eliminating plug and a chemical treatment production process. The electric eliminating plug comprises plug contact pieces and is characterized in that the head portions of at least one group of the plug contact pieces are provided with chemically-treated resistive layers. The chemical treatment production process comprises the steps of (1) deoiling; (2) chemical polishing; (3) pickling; (4) chemical treatment; (5) hot water cleaning; (6) saponification. The electric spark eliminating plug has the advantages of being capable of eliminating electric sparks generated when plugged in and pulled out, avoiding corrosion or burnout of the contact pieces and accordingly being applicable to anti-explosion places. The chemical treatment production process achieves spark elimination of the plug by forming the resistive layers through the chemical treatment and is efficient and simple.