401results about How to "Safe and stable job" patented technology

The invention discloses a plasma air purification-sterilization device. The air purification-sterilization device mainly comprises a shell, a circulating fan, a primary filter, a plasma reactor, a negative-ion generator, a high-efficiency air filtration device and an MCU (Micro Controller Unit). The air purification-sterilization device is also provided with a circuit protection system to guarantee the sable and safe work of the whole device. A waveform pole plate and an electricity discharging metal wire parallel to the waveform pole plate are adopted to serve as a basic reaction unit of the plasma reactor, and the waveform pole plate can disturb the air entering the waveform pole plate to furthest diffuse the air to the periphery of an electrode wire, so that the aim of complete sterilization is achieved. The plasma reactor works under high voltage and can generate high-concentration plasma for high-efficiency sterilization, and a circuit protection module is arranged so as to allow the device to work stably and reliably. The air purification-sterilization device is also provided with a temperature sensor, an air quality sensor, a dust sensor and a human body infrared detection device which are capable of detecting environment conditions in real time and are matched with the MCU, so that the automatic detection and control on air purification and sterilization are achieved.

The invention provides a control method for a steam thermal system with dual-machine backheating steam extraction. When the pressure of a deaerator is lower than the steam extraction pressure at a heat supply steam extraction port of a deaerator on a main steam turbine, a first steam extraction control valve is opened; when the pressure of the deaerator is higher than the steam extraction pressure at the heat supply steam extraction port of the deaerator on the main steam turbine, the first steam extraction control valve is closed and a steam exhaust control valve is opened. According to the control method, the deaerator is connected with a small steam turbine exhaust pipe and a heat supply steam extraction port of the deaerator on a large steam turbine respectively; through controlling the switches of corresponding control valves, on one hand, synchronisms of the pressure of the deaerator and the steam extraction pressure at the heat supply steam extraction port of the deaerator on the large steam turbine under different running conditions are ensured, and on the other hand, the balance of backheating steam extraction flow is achieved on the premise that the output balance between the small steam turbine and the system auxiliary equipment is ensured. Therefore, by adopting the control method, the balance of the backheating steam extraction flow is ensured, and the small steam turbine is enabled to work safely and stably for a long time.

The invention discloses a cargo cabin component for an unmanned aerial vehicle and the unmanned aerial vehicle with the same. The unmanned aerial vehicle comprises a vehicle body, the vehicle body is provided with a power supply battery, the cargo cabin component is detachably arranged on the vehicle body, the cargo cabin component comprises a cargo cabin, a cabin door and a rechargeable battery, wherein the cargo cabin has an entrance and an exit, and a chamber used for loading cargoes is limited in the cargo cabin; the cabin door is arranged on the cargo cabin and used for opening or closing the exit; the rechargeable battery is arranged on the cargo cabin and comprises a charging port suitable for connecting with an external power supply, and the rechargeable battery is suitable for matching with the power supply battery to charge the power supply battery. The cargo cabin component is capable of providing enough electricity for the unmanned aerial vehicle, and the cyclic utilization rate of the cargo cabin is improved.

A bus-bar frame of power transmission device is prepared as forming said bus-bar frame by a pair of covering plates and two pairs of side plates, setting two sets or above of conductor groups at space enclosed by said covering plates and side plates in lamination mode. The method for electric-connecting multilayer bus-bar frame is also disclosed.

The invention discloses a PWM-wave-controlled electromagnetic relay driving circuit and an implementation method. The electromagnetic relay driving circuit comprises a microprocessor module and a control circuit, wherein the control circuit comprises a driving circuit power supply, an electromagnetic relay, a freewheel diode, a triode and resistors, wherein both ends of a main contact coil of the electromagnetic relay are connected with the freewheel diode in parallel, a negative electrode of the freewheel diode is connected with the driving circuit power supply, a positive electrode of the freewheel diode is connected with a collector of the triode, the driving circuit power supply is subjected to voltage division through the resistors and connected to an A / D port of the microprocessor module, a PWM wave generated by an I / O port of the microprocessor module controls a base of the triode, and an emitter of the triode is grounded through one of the resistors. The PWM-wave-controlled electromagnetic relay driving circuit is simple in structure, saves cost, is fast in operation of the electromagnetic relay, and ensures safe and stable operation.

The invention discloses a highway electric vehicle integrated emergency charging rescue system and method thereof, comprising a relief vehicle. The relief vehicle is provided with a control center and an energy storage center, the control center is communicated with a vehicle terminal of the rescued vehicle through a mobile network; the vehicle terminal receives information from the control center, also can send rescue information to the control center through the mobile data network; the vehicle terminal of the rescued vehicle uploads the operating data during the running process of the rescued vehicle to the control center in real-time, and the control center analysis and determines the rescued vehicle and make corresponding decision based on the operating data during the running process of the rescued vehicle, then the energy storage center is utilized for achieving the emergency charging rescue of the rescued vehicle. The highway electric vehicle integrated emergency charging rescue system and method has the advantages that the problem of highway electric vehicle integrated emergency charging rescue is effectively solved, the effective guarantee of the construction and operation of the electric vehicle charging facilities is provided, and the highway electric vehicle integrated emergency charging rescue system and method also has good social effect.

The invention discloses an automatic welding production line of a lighter, comprising a rack and a control device, The rack is provided with a transmission line; a fed-material feeding conveying station, a case flattening station, an inner machine head flattening station, an inner machine head directional assembling station, a welding station, a dust removing station, an inner machine head positioning station and a discharged-material conveying station. The automatic welding production line can weld a plurality of lighters simultaneously, therefore the production efficiency is greatly improved, and the product quality is more stable.

The invention relates to an electric automobile body insulation detection system and method. The electric automobile body insulation detection system comprises a power supply protection circuit, an MCU (Micro Control Unit), a power supply isolation circuit, a voltage injection circuit, an internal storage circuit, a detection voltage injection feedback circuit, a resistance measurement circuit, a CAN, an operating state indication circuit, a switching value or PWM insulation fault level indication circuit. The electric automobile body insulation detection system further retains high precision of insulation resistance measurement on the basis of reducing the injection voltage and current, and can also assess which side of positive and negative buses has lower insulation resistance for the automobile body.

The invention discloses an expressway rescue system with forewarning analysis function for electric vehicles and a method of the same. The expressway rescue system with forewarning analysis function for the electric vehicles and the method of the same comprises operational centers. The operational centers make decisions after analyzing and judging operating data in the running process of vehicles and send decision information to the rescue centers or vehicle-mounted systems installed on the vehicles through network. The operational centers or the vehicle-mounted systems installed on the vehicles dispatch according to the decision information received. The rescue centers or security operation centers generate the final analysis results according to the exception handling model and achieve event storage, early warning analysis and rescue guidance according to the data uploaded by the vehicle mounted system. The expressway rescue system with forewarning analysis function for the electric vehicles and the method of the same have the advantages of being capable of analyzing general failure of the charging facilities for expressway electric vehicles and elements of affecting the expressway electric vehicles charging, formulating an emergency rescue plan of the expressway electric vehicles, better ensuring the safe operation of the electric vehicles on the expressway, and ensuring the safety and stability of the charging facilities.

The invention discloses a river section water quality monitoring system. The river section water quality monitoring system comprises a bank control base station and a monitoring box, wherein a sampling device, a water quality monitoring device and an underwater control device are arranged in the monitoring box; the sampling device is connected with the water quality monitoring device which is connected with the underwater control device, a balance stabilizing device is arranged at the upper part of the monitoring box, and a lifting control device is arranged at the lower part of the monitoring box. A river section water quality monitoring method comprises steps of (1) building the bank control base station; (2) mounting cables; (3) controlling the monitoring box to reach a river section monitoring point; (4) monitoring the river section water quality. The river section water quality monitoring system is simple in structure, high in pertinence, high in automation degree and convenient to operate; with adoption of the method, the water quality condition of the river section can be monitored in real time, the accuracy is high, information is pushed actively and remotely, remote control is realized, the water quality condition is known by a worker conveniently at any time, and the labor intensity is reduced, so that the working efficiency is increased and the economic cost is reduced.

The invention discloses an analysis and treatment method of an RBC (Recording Buffer Controller) log record and an RBC record analyzer. The method thereof comprises the following steps of: obtaining RBC log information; filtering the RBC log information by utilizing a preset filter log information type; and in the RBC log information subjected to filter, selecting log information which is relative to a target vehicle identification number and is matched with a target message type or an information packet type and analyzing. Relative treatment is carried out by utilizing RBC log files obtained from an RBC according to a set module and a method corresponding to the module, and a result after treatment is displayed by adopting an intuitive list shape, thereby avoiding frequent operation on RBC equipment, ensuring safe and stable work of the RBC equipment, also obtaining fewer RBC log files to analyze through filter treatment on the RBC log files, being convenient to check and analyze the RBC log files for technicians while saving the time and lowering the possibility of occurring analysis careless mistakes.

The invention discloses a wireless power transmission system applied to power supplying of a high voltage line device. The system is directly connected with a high voltage power transmission circuit through a large power sensing power taking device, power is directly connected with alternated current power by utilizing a mutual inductance principle, and then the alternated current power is rectified and stabilized through a large power multi-way output rectifying stabilizing device to provide direct current standing bias voltage for a separately excited high frequency power supply; and the separately excited high frequency power supply is connected with a wireless power transmission energy emitter, high frequency power is transmitted to the wireless power transmission energy receiving device and a small power rectifying stabilizing matching device on the basis of a magnetic coupling resonance technology, and finally the power is supplied to the high voltage line device. The system supplies the power to an on-line monitoring device in a wireless transmission mode, and meanwhile the system is light in weight and small in size, can be directly hung on a high voltage aerial transmission wire, and achieves long-distance, high-reliability and high stability power supplying.

The invention discloses a space overlaid and coupled high-power semiconductor laser stack array system. The space overlaid and coupled high-power semiconductor laser stack array system comprises a first semiconductor laser stack array and a second semiconductor laser stack array which are respectively formed by overlaying a plurality of semiconductor labor diode bars in the direction of a fast axis, wherein the number of the diode bars of the first semiconductor laser stack array is equal to the number of the diode bars of the second semiconductor laser stack array. The space overlaid and coupled high-power semiconductor laser stack array system further comprises a first fast axis collimating lens set, a second fast axis collimating lens set, a first slow axis collimating lens array set, a second slow axis collimating lens array set, a periodical space coupling lens, a slow axis beam expanding system and a focus lens. The two laser stack arrays in the system are overlapped in the space through a periodical space coupling lens to output a high-power laser, the beam collimation is achieved through the fast axis collimating lenses and the slow axis collimating lenses, the characteristics of high brightness and linear polarization are kept, and meanwhile internal components are protected through an added feedback optical isolation system. The problem that the existing semiconductor laser technology is complex is effectively solved, and even high-power and strip-shaped light spots are output.

The invention discloses a concentric pipe wellhead device for exploiting thickened oil through steam assisted gravity drainage, and the device is used in the technical field of thermal recovery production for thickened oil in an oil field. The two sides of a large cross are respectively connected with a sleeve gate valve through flanges; and a columnar eccentric main channel and an auxiliary channel are arranged in the large cross; an outer pipe small tee joint and an outer pipe production or steam injection gate valve are fixed at the upper end of the large cross through flanges; an outer oil pipe hanging short section is fixed at the lower end of the outer pipe small tee joint through an internal thread; an inner pipe small tee joint and an inner pipe production or steam injection gate valve are fixed at the upper end of the outer pipe small tee joint; an inner oil pipe hanging short section is fixed at the lower end of the inner pipe small tee joint through an internal thread; and a paraffin removal gate valve or polish rod sealer is fixed at the upper end of the inner pipe small tee joint. The device has the effects of meeting the technical requirements of the steam injection, automatic flow, oil pumping and test processes in thermal recovery of thickened oil, and realizing two-point steam injection, one-point circular liquid discharge and real-time test through an independent auxiliary pipe test channel.

The invention relates to an optical fiber amplifying system and an optical fiber amplifying method. The system comprises a superradiance light emitting diode (LED), a coupler, an isolator and an optical fiber amplifier; the superradiance LED is used for outputting laser, the coupler is connected with an output end of the superradiance LED and is used for coupling the laser to the isolator; the isolator is connected between the coupler and the optical fiber amplifier and is used for preventing the laser that enters the optical fiber amplifier from feeding back to enter the superradiance LED; and the optical fiber amplifier is used for amplifying the laser. According to the invention, the superradiance LED is used as a seed source so as to effectively restrain relaxation oscillation on one hand and effectively restrain SBS (stimulated brillouin scattering) nonlinear effect on the other hand due to wider output light spectrum of the superradiance LED, so that the optical fiber amplifier can be ensured to work safely and stably.

The invention provides a control and protection device, with the power supplied by the complementation of wind and light, of an aeration oxygenation machine, relates to the environment protection field and in particular to an oxygenation aeration water quality purifying device technology in the environmental engineering subject. The device is characterized by consisting of a wind driven generator, a solar panel, a rectifying device, a protection switch, an AC contactor, an inspection switch, a storage battery, an inverter, a DC monitor, a storage battery low-voltage protection contact and a storage battery overvoltage protection contact. The positive effects brought by the implementation of the invention are: the use of the complementation system of wind and light for power supply solves the problem that energy can not be supplied stably in a single power generation and supply process by either wind energy or solar energy, saves coal energy; realizes the auto starting function of aeration equipment and automatically accumulates the working time of the aeration equipment; realizes the auto protection function against insufficient battery voltage caused by excessive electricity consumption of the aeration equipment and excessive saturation of batteries caused by excessive electricity generated by wind and light and ensures the long-term safe and stable work of the equipment.

The invention discloses a safety monitoring management system for hoisting equipment. The safety monitoring management system comprises a hoisting equipment component information acquisition unit, a safety monitoring management unit, an information processing control unit, an information output unit and a display terminal, wherein the output end of the hoisting equipment component information acquisition unit is connected with the input end of the information processing control unit; the signal input end of the safety monitoring management unit is connected with the signal output end of the information processing control unit; the signal output end of the information processing control unit is connected with the signal input end of the information output unit; the display signal output end of the information processing control unit is connected with the signal input end of the display terminal; the output end of an image acquisition unit is connected with the input end of the image processing unit; the output end of the image processing unit is connected with the input end of a display. The safety monitoring management system can realize comprehensive monitoring management on all types of bridge type and portal cranes, and the production working safety is guaranteed.

A high frequency induction plasma heating wind tunnel is used for a nonequilibrium thermal environment and deep space exploration research. The heating wind tunnel comprises a plasma generator, a jet pipe, a test segment, a diffusion segment, a cooler, a vacuum set and an assisting system. Working gas is heated by the plasma generator, acts on a model of the test segment under the effect of the jet pipe, and is discharged outside via the vacuum set by being pressurized by the diffusion segment and cooled by the cooling segment. The high frequency induction plasma heating wind tunnel is a ground simulation apparatus that can provide a chemically pure, high temperature and high speed air flow environment, and can meet requirements of gas components for deep space exploration research.

A MP3 player for realizing music-share based on Bluetooth technique is prepared as connecting storage and audio processor both to central processor and connecting media player to audio processor, setting a Bluetooth communication module on MP3 player being connected separately to said central processor and audio processor. Its method for realizing music-share purpose based Bluetooth technique is also disclosed.

The invention discloses a shock absorbing device of a tuned mass damper (TMD) for a draught fan. The device comprises a tower barrel and a plurality of pendulum devices mounted in the tower barrel, wherein an inner sleeve is fixedly arranged in the tower barrel in a sleeved manner; the inner sleeve is fixedly connected to the tower barrel through a partition plate and divides the space between thetower barrel and the inner sleeve into a plurality of built-in cavities; and the pendulum devices can be mounted in the built-in cavities in a swinging mode. Each pendulum device comprises a connecting rope and a pendulum ball, wherein one end of the connecting rope is vertically connected to the upper end of the tower barrel while the other end of the connecting rope is connected to the pendulumball, and the pendulum ball is opposite to the moving direction of the vibrated tower barrel under the inertial action force. The invention further discloses a mounting method. With adoption of a structure that the plurality of pendulum dampers are uniformly distributed in the circumferential direction of the tower barrel, a condition of an eccentric load is avoided, the swinging direction of thependulum balls is not limited, and the pendulum balls can swing all around at 360 degrees, so that the direction is changed anytime as the vibrating direction of the tower barrel is changed, and therefore, a purpose of absorbing shock of the tower barrel quickly and immediately is achieved.

The invention discloses an IGBT module heat-radiation apparatus. The air temperature in an air inlet position is low while the air temperature in an air outlet position is high. The IGBT module heat-radiation apparatus comprises a plate-fin type radiator. The radiator comprises a plurality of fins. A plurality of projections are arranged inside a fin channel of the plate-fin type radiator. The projections are sequentially increasing from the air inlet position of the plate-fin type radiator to the air outlet position of the plate-fin type radiator. By arranging projections of different densities in the plate-fin type radiator channel to adjust the thermal resistance along the air flow direction, the heat-radiation apparatus has the thermal resistance decreased with the air flow direction. The temperature uniformity of the IGBT module heat-radiation apparatus is thus guaranteed. The IGBT module reliability is further improved.

The invention discloses a method for correcting outer diameter of steel pipes. The method comprises the step of adding a drawing device for pushing a steel pipe to the prior cold-drawing machine, wherein a trolley of the cold-drawing machine grips and draws the drawing device, and the drawing device pushes the steel pipe to pass through a die-drawing seat so as to correct the outer diameter of the steel pipe. The method for correcting outer diameter of steel pipes has the advantages of improving production efficiency and reducing production cost, along with simple process and convenient operation.

The invention relates to a switching device for power supply or power distribution, and discloses a surge suppressor of a switch for power supply and distribution of low-power equipment. The surge suppressor is characterized in that resistors R1 and R3 are connected in parallel; one end of the resistors is connected with the grid of an MOS (metal-oxide-semiconductor) field-effect transistor Q1, and the other end of the resistors is connected with the source of the Q1 and the positive end of a direct-current power supply; resistors R2 and R4 are connected in parallel and are connected between the grid of the Q1 and the negative end of the direct-current power supply in series; capacitors C1 and C2 are connected between the grid and source of the Q1 in series; and the drain of the Q1 is connected with power supply filtering or loading equipment by a fuse. The invention also discloses a surge suppressor of a switch for power supply and distribution of high-power equipment. The surge suppressors solve the problem of electromagnetic compatibility of on / off power equipment of complex systems and achieve the beneficial effects of simple circuit, convenience in debugging, obvious surge suppression, low cost, high reliability and the like.

The invention discloses a cutting device for a glass table board of an integrated cooker. The cutting device comprises a workbench, a cutting mechanism and clamping devices, a movable seat is arrangedbelow the workbench, a mounting plate is arranged between the workbench and the movable seat, a rotating motor, a driven wheel and a rotating screw rod are arranged on the mounting plate, the rotating motor drives the driven wheel to rotate through a belt wheel, the driven wheel drives the rotating screw rod to rotate, the cutting mechanism is located above the workbench, and the clamping devicescomprise supporting rods and clamping pressing plates. A cutting method comprises the following steps that (1) a to-be-cut raw material is fed; (2) positioning and clamping are carried out on the glass plate raw material; (3) the position of the cutting mechanism is adjusted; and (4) cutting machining is carried out. According to the cutting device, the overall structural design is ingenious andreasonable, omni-directional adjustment of the position of the cutting mechanism can be realized, and accurate positioning between the cutting mechanism and the to-be-cut position is ensured; and meanwhile, the clamping devices are designed so that the to-be-cut raw material can be clamped and fixed, and the application range is wide.

The present invention discloses a power grid load transfer method based on global search, comprising the following steps: step 1: acquiring grid model data and state estimation data, and based on the grid model data and the state estimation data, making a grid equivalent to an undirected weighted graph; step 2: calculating the bus maximal power supply capability; step 3: searching for the feasible load transfer path of a bus according to the grid model data and the state estimation data acquired in the step 1; and step 4: acquiring the information of a lost-voltage bus, and obtaining the feasible load transfer path of the lost-voltage bus according to the feasible load transfer path of the bus obtained in the step 3 as a final load transfer scheme. The method can find the feasible transmission line load transfer route and the bus coupler switch load transfer route after the occurrence of voltage loss in the substation bus, can quickly and effectively formulate the load transfer scheme under the voltage loss of the substation bus, and can improve the control capability of the dispatcher for the power grid to protect the security and stability of the power grid.

The present invention relates to a horizontal shear type three-dimensional vibration isolation equipment, belonging to the field of structure vibration isolation and vibration control technology. It is characterized by that the upper surface and lower surface of laminated rubber support abutment in said equipment are respectively equipped with high-speed steel plate, the high-speed steel plate of lower surface is connected with lower connecting plate, said lower connecting plate is connected with foundation; the high-speed steel plate of upper surface is connected with guide component, on the guide component the upper connecting late is set, the guide rod portion of said guide component is set in the interior of sleeve portion of said upper connecting plate. On the lower surface of said sleeve portion and external surface of guide rod portion a quadrangular dish spring is set, on the undersurface of said quadrangular dish spring and on the upper surface of said guide component the recessed grooves are cut respectively, and said recessed grooves can be combined together and formed into a hollow cavity, in said hollow cavity the lead block can be injected. Said equipment can be used for isolating secondary vibration of building which is induced by rail traffic.

The invention provides a goods carrying mechanism and a stereoscopic warehouse, and belongs to the technical field of transportation of goods. The mechanism includes a goods frame, a bearing table, agoods carrying piece and a drive unit; the goods frame is provided with several goods storage cavities, the bearing table is arranged on the goods frame in a sliding mode, the goods carrying piece includes a bearing surface and an installation surface, the bearing surface is provided with skidproof stripes, and the drive unit is installed between the bearing table and the goods carrying piece andused for driving reciprocating motion, relative to the bearing table, of the goods carrying piece, so that the goods carrying piece selectively stretches into corresponding goods storage cavities or are taken out from the corresponding goods storage cavities. In the operational process, the goods carrying mechanism can conveniently and fast take the goods in the goods frame or place the goods on the goods frame, work is safe and stable and the efficiency is high.

A hoisting device of a feeding isolator comprises two linear guideways arranged on the two sides of a roof in parallel, a cross beam, a base, an electric winch and a hanging bracket, wherein slide blocks are arranged on the linear guideways in a sliding manner, the two ends of the cross beam are fixedly connected with the slide blocks on the two linear guideways respectively, the cross beam is perpendicular to the linear guideways and is also provided with a guideway, the base is arranged on the guideway of the cross beam in a sliding manner, the electric winch is arranged on the base, the tail end of a steel wire rope on a winch barrel is connected with the center of the hanging bracket, the hanging bracket is connected with a plurality of hanging ropes, and the tail end of each hanging rope is provided with a hook. The hoisting device of the feeding isolator is simple in structure and convenient to operate and saves time and labor, a cover of the isolator can be easily opened to suspend in the air steadily, the hoisting device is wide in coverage scope and strong in applicability, an installed ball screw can accurately control the positions of the slide blocks and the base to guarantee the accurate hoisting position, the isolator does not swing when hoisted, and the operation is safe and stable.

The invention discloses a cascade converter valve, a DC power transmission system and a control method thereof. The cascade converter valve is provided with a high voltage valve group and a low voltage valve group which are connected in series in the DC side. The high voltage valve group is a first converter. The low voltage valve group comprises a second converter and a third converter which areconnected in parallel. At least one of the converters is a hybrid multilevel output converter. The AC side of the first converter and the AC side of the third converter are connected in parallel through a transformer to form the first AC end of the cascade converter valve. The AC side of the second converter forms the second AC end of the cascade converter valve. The cascade converter valve has multiple working modes and AC system access modes, high-voltage, high-capacity and long-distance DC power transmission and receiving AC network hierarchical access and asynchronous partition interconnection can be simultaneously realized under the premise of reducing the total manufacturing cost and area occupation of the DC system and thus the system stability and reliability can be enhanced. The cascade converter valve is suitable for the electric power system of multiple DC feed-in points.

The invention relates to a mini combustion-type semiconductor thermo-electric generator, which belongs to the field of electronic devices. The thermo-electric generator orderly comprises an upper thermo-electric generating sheet (4), an upper thermal-isolating baffle (2), a combustor (1), a lower thermal-isolating baffle (3) and a lower thermo-electric generating sheet (5) from top to bottom, wherein the combustor (1) comprises a substrate (9), the substrate (9) is orderly provided with a gas inlet channel (7), a combustion chamber (10) and a gas outlet channel (6), and the gas inlet channel (7) and the gas outlet channel (6) are in a parallel structure; and the diameters of the gas inlet channel (7) and the gas outlet channel (6) vary. The invention aims at the field of personal combat cells, has the advantages of small size, light weight and high continuous operation performance, and is especially suitable to provide power for mini devices in the aspects of field, military affairs and aviation with no common power sources in the field of high technology.