55results about How to "Power controllable" patented technology

The invention discloses a magnetic refrigerating device based on a pulsed magnetic field. The device comprises a repetitive pulsed power supply without a continuous loop, a pulsed magnet, a magnetic refrigeration working medium, a hot end heat exchange unit and a cold end heat exchange unit, wherein the repetitive pulsed power supply discharges to the pulsed magnet, and part of electric energy flows back to the repetitive pulsed power supply to achieve energy recovery; during the discharge process, the pulsed magnet generates the pulsed magnetic field and causes the refrigeration working medium to magnetize and release heat, and the heat generated by the magnetic working medium is transferred to a high-temperature heat source through the hot end heat exchange unit; after the discharge is finished, the repetitive pulsed power supply is shut off, and the pulsed magnet stops generating the pulsed magnetic field, and the magnetic refrigeration working medium demagnetizes and absorbs the heat, and through heat absorption of a low-temperature heat source by the cold end heat exchange unit, the temperature of the low-temperature heat source is lowered, thus completing a discharge refrigeration cycle; and the discharge refrigeration cycle is circulated in a manner above to realize continuous refrigeration. According to the scheme disclosed by the invention, the controllable pulsed magnet generates the intermittent repetitive pulsed magnetic field to achieve the magnetic refrigeration, and the magnetic refrigerating device has the characteristics of high magnetic field intensity, no moving part, convenience and fastness of control, high efficiency and high refrigeration power.

The invention discloses a wind power and photovoltaic microgrid water pumping and energy storing power generation system. The system comprises a microgrid direct-current bus, an alternating-current bus, a system controller, a photovoltaic power generation subsystem, a DC-DC controller, a capacitor switch set, a super-capacitor set, an energy-storing battery set, a two-way DC-DC controller, a wind power generation subsystem, an AC-DC controller, a DC-AC controller, a water pump switch set, a water pump unit, a selector switch set, a reversible water turbine set, a thrown-in switch set, a power generator set, a water turbine set, a booster station and a large power grid. The wind power generation subsystem and the photovoltaic power generation subsystem can be subjected to running control at maximum power, maximum energy acquisition is guaranteed, system power balance and electric energy quality are not considered, the thrown-in set number of the super-capacitor set is controlled, smoothing is performed on the voltage of the microgrid direct-current bus, and the bus voltage is kept stable. The electric energy quality problem caused by wind power and photovoltaics can be neglected, the power generation utilizing rate of renewable energy is increased, and reliable, controllable and stable electric energy is provided for the large power grid.

The invention provides a stepwise jet-drilling down hole control system. The system comprises a speed controller and an anchoring mechanism, wherein the speed controller comprises a throttling cylinder, a throttling plunger and a piston rod; the throttling cylinder sleeves the piston rod; the upper and lower ends of the throttling cylinder are respectively hermetically connected with the upper and lower ends of the piston rod; a sealed annular hydraulic chamber is formed between the throttling cylinder and the piston rod; the throttling plunger is arranged inside the hydraulic chamber and fixedly sleeves the piston rod; a throttling clearance is formed between the outer wall of the throttling plunger and the inner wall of the throttling cylinder; through holes are formed in the piston rod in a manner of penetrating the piston rod along the axis; the piston rod and the throttling plunger can move axially along the throttling cylinder relative to the throttling cylinder; when the piston rod moves downwards along the axial direction, the anchoring mechanism can be opened by the piston rod. The stepwise jet-drilling down hole control system disclosed by the invention can be used for controlling the speed of a thrust during a jet-drilling process by a hydraulic cylinder and can also be used for realizing stepwise movement of a hydraulic cylinder propelling mechanism during a propelling process by the anchoring mechanism so as to realize long-distance feeding of a jet hose.

The invention relates to a pre-treatment method of a composite electrode for a TEMPO / MV flow cell. The pre-treatment method specifically comprises the following steps: firstly placing carbon electrodematerial in a domestic microwave oven (the power is at 300W to 800W) to treat for 1-10min, cleaning, and then placing in an aqueous solution containing ethidene diamine to soak for 12-24h, and then placing the soaked graphite felt in a hydrothermal reaction still containing graphene oxide and ethidene diamine mixed aqueous solution, reacting for 12-24h at 180 DEG C, freezing and drying to obtainthe electrode material for TEMPO / MV flow cell. The hydrophily of the graphite felt is increased, the binding force of the three-dimensional graphene and the graphite fiber is enhanced, the electrochemical activity of the electrode material is improved, and the energy efficiency and the voltage efficiency of the TEMPO / MV flow cell are improved.

The present invention provides a composite carbon crystal electro thermal material and its preparation methods. This composite carbon crystal material is mainly composed of carbon fiber, resins, plasticizers, graphite and additives. Percentages of the weight of each component are 20-30: 30-40: 10-15: 30-40: 10-20. The method of this invention includes the following steps. It would first implement fiber length pretreatment of short-cut carbon fiber material, and then implement heat treatment and crushing treatment, and then fully mixed all the components according to the referred weight ratio, and then squeeze the above mixture into all the required shape. In the dry inert gas environment or the vacuum environment, it would produced high-quality carbon composite crystal electro thermal material that has high heat value, large exchange rate of electric heating, good effect of energy-saving, good mechanical strength and long service life, with the maintenance a certain level of warming up speed, temperature increasing time, and high-temperature roasting. It has a large span of temperature, and could be made into different forms of composite carbon crystal heating elements, so it could be flexibly applied in various types of heating devices.

The invention discloses a disposable fracturing expansion pipe and a fracturing method thereof, and belongs to the technical field of expansion pipes. The disposable fracturing expansion pipe mainly comprises a shell, and a first plug and a second plug at two ends of the shell; screw holes are formed in the two ends of the shell; a central hole is formed in the center of the second plug; a gas generator is arranged in the shell; a gas generating agent is arranged in the gas generator; a triggering device is arranged in the middle of the gas generator; two ends of the triggering device are connected with conducting wires; and the conducting wires penetrate through the two ends of the gas generator, pass through the central hole and extend out of the expansion pipe. During use, the expansionpipe is placed in a drilling hole, the drilling hole is blocked with a stopper, then the expansion pipe is inflated with gas, and finally, an exploder is started to ignite the gas generating agent, so that the expansion pipe is exploded. The disposable fracturing expansion pipe provided by the invention has the characteristics of being small in size, convenient to transport, safe in use, and controllable in power, the fracturing method is simple, and fracturing expansion pipe is applied to the fields of mining, oil exploitation, hydraulic engineering construction and electric power engineering construction, and the like.

The invention relates to a diesel hydraulic lifting machine. The diesel hydraulic lifting machine comprises a support frame device part, a power device part, a hydraulic device part, a lifting and pulling device part and a rotary device part. According to the invention, power is provided through a diesel engine, and control power is provided through a hydraulic motor, and the stable running is achieved when loaded objects fall off by utilizing a balanced valve operating principle.

The invention relates to the technical field of electric locomotives, in particular to a rail flaw detection vehicle for a subway. The rail flaw detection vehicle comprises a cab, a frame, a bogie, a diesel engine unit, a carriage, an air source system, a detection room, a flaw detection unit and an electrical cabinet. The cab, the diesel engine unit, the detection room and the electrical cabinet are mounted inside the carriage; the carriage is connected to the top of the frame; the bogie, the air source system and the flaw detector are connected to the bottom of the frame; an alternating current and direct current electric transmission device is disposed inside the carriage; the flaw detection unit comprises a lifting bar, a stabilizer bar, a detection wheel, a detection bar and a flaw detector. The alternating current and direct current electric transmission device is disposed in the carriage to serve as a built-in drive power of the vehicle, standalone travelling is available, the flaw detector is in a slipping boot structure, the speed can be greatly increased at the premise of detection quality guaranteed, maintenance of parts is low, application and maintenance costs are low, and the vehicle has important significance to lowering domestic user cost and improving operating efficiency.

The invention discloses a microexplosion device for destructing electronic chips. The microexplosion device comprises an upper housing, a blasting cap, an initiating explosive device chamber and a lower protection plate, wherein the upper housing is an empty cavity with an opening in the lower part; fixed supporting ears are arranged at two ends of the outer part of the upper housing; the blastingcap has two blasting signal lines, and the two blasting signal lines are led out from the side wall of the upper housing; high explosive is stuffed to the upper part of the initiating explosive device chamber, and insulating materials are stuffed to the lower part of the initiating explosive device; an explosion orienting window is arranged on the lower protection plate; an energy attenuation plate is arranged in the explosion orienting window; and a plurality of controlled fragments are arranged on the energy attenuation plate. The microexplosion device for destructing electronic chips disclosed by the invention is controllable in explosion opportunity and explosion power, small in size, long in storage time, good in environmental compatibility, and convenient to load and unload; an assigned electronic chip can be effectively and physically damaged; and besides, through the energy attenuation plate, the explosion power is controlled, so that other electronic components are not damaged, the purpose that under a certain condition, the assigned electronic chip is destructed is achieved, and the data security of the electronic chip is improved.

When a pulsed waveform is used to transmit power-supply power in a form of a power packet etc., a filter for reducing harmonic components is disposed on a power transmission side. A switch and a control portion for controlling ON / OFF of a function of the filter are provided to turn ON the function of the filter limitedly at each of timings t1 to t2 and t3 to t4 at which the power is transmitted. The harmonic components are reduced from the waveform of the transmission power by the function of the filter. Radiation noise generated by the wire harness is reduced in a high frequency region. The function of the filter is turned OFF at a timing at which digital information is transmitted so that a waveform of the digital information can be prevented from being deformed.

The invention relates to the technical field of civil engineering, and provides a one-piece shock image mode exciting and receiving device. The one-piece shock image mode exciting and receiving device comprises an exciting unit, a receiving unit and a master controller, and the exciting unit, the receiving unit and the master controller are electrically connected in pairs. By the arrangement, excitation operation of the exciting unit can be realized through excitation instructions sent by the master controller, the receiving unit collects information of the excitation operation and sends to the one-piece shock image mode exciting and receiving device, exciting and receiving can be integrated, continuous and free excitation function can be realized, and excitation power is controllable.

An intelligent tunnel lamp illuminating system is characterized in that a plurality of illuminating LED lamps mounted in a tunnel are included, and LEDs are connected with a control module which is connected with a sensor module formed by a range sensor, a sound sensor and a sensillum opticum through a communication module. The communication module is a carrier communication module, and the signals of the communication module are loaded on power lines after processed through a demultiplexer and an interference suppression filter. The intelligent tunnel lamp illuminating system has the advantages that vehicle information is detected through sensors, the lamps in the tunnel are controlled to be turned on when vehicles are detected, the lamps are not turned on or partially turned on when no vehicle is detected, and the intelligent tunnel lamp illuminating system has the advantages of being efficient, energy saving, environmentally friendly and the like; sensor information is sent to an upper computer through a wireless mode or a carrier communication mode, and a controller can control working conditions of the lamps remotely, and can further control the power of the LED lamps.

The invention provides an electric heating film, which comprises a flexible film body and a connector. Wires are distributed on the flexible film body, heating resistive layers connected with the wires are laid on the flexible film body, and the connector is connected with the wires. According to the scheme of the electric heating film, the heating resistive layers connected with the wires are laid on the flexible film body and are formed by painting nano carbon series resistive pastes, so that the thickness of the electric heating film can be effectively controlled and thinning and special shaping of the electric heating film can be realized easily. In addition, the heating resistive layers of the electric heating film are arranged optionally, the electric heating film is simple in manufacturing process, low in cost, favorable for automatic production, high in heat efficiency and easy to control power when in use; the heating resistive layers are free of looseness, short circuit, broken circuit and the like, and accordingly safety of using is improved.

The invention discloses a hybrid power car electric speedup clutch and a control method thereof. The hybrid power car electric speedup clutch comprises a gear motor, a feed screw nut mechanism, a shell, brake calipers and a planetary gear train assembly. The shell is of a square-end-up and round-end-down disk-type shell structure, and the planetary gear train assembly is installed in a round area.A sun wheel is fixed to a shaft of a planet carrier through a bearing, a planet gear is fixed to the planet carrier, the planet carrier is embedded into an outer gear ring, and the planet gear separately meshes with the sun wheel and the outer gear ring. An inner rotating hub and a damping machine shell are sequentially arranged outside the outer gear ring, and the damping machine shell is fixedto the outer gear ring through bolts. Four rectangular slots are separately formed in the damping machine shell, the inner rotating hub and the outer gear ring, and each of the rectangular slots is internally provided with a torsion spring. The planet carrier is connected with an engine through the shaft penetrating through the sun wheel. The gear motor is connected with the feed screw nut mechanism, the feed screw nut mechanism is connected with the brake calipers through steel wires, the brake calipers are arranged in the shell in a floating mode, and the brake calipers are provided with twofriction plates. The hybrid power car electric speedup clutch and the control method have the advantages of simple structure, short axial size, reduction of torsional vibration and the like.

The invention provides a preparation method of a supercapacitor chip, the supercapacitor chip and a supercapacitor. A substrate with a conductive line is provided; two independently arranged current collectors are formed on the substrate, and each of the current collectors is electrically connected to the conductive line of the substrate; a positive electrode is prepared on one of the current collectors, a negative electrode is prepared on the other current collector and a solid / quasi-solid electrolyte film is formed between the positive electrode and the negative electrode so as to obtain a multilayer film; and the multilayer film is encapsulated and protected by an encapsulation film so as to obtain the supercapacitor chip. The supercapacitor chip prepared by the method can meet the userequirements of high current or high voltage after being integrated with the supercapacitor.

The invention provides a radio frequency pulse power coupling method and apparatus for a vacuum treatment cavity. The method comprises the following steps: presetting a first reflection power standard value in a first radio frequency pulse signal generator and a reflection power standard value in a second radio frequency pulse signal generator; and searching for a first radio frequency and a second radio frequency corresponding to minimum reflection power by use of a self-learning cycling mode. According to the radio frequency pulse power coupling method and apparatus for the vacuum treatment cavity, through automatic adjustment of a radio frequency pulse frequency, by use of the self-learning cycling mode, accurate frequency sweeping is carried out for a small scope, the feedback of radio frequency power is obtained, and minimum reflection radio frequency power is searched for. The realization cost is low, there is no need to add too much equipment cost, a certain time delay does not exist, within such a period, power obtained by a load is controllable, and the etching process is not influenced.

The invention discloses a machine tool cutter temperature control device capable of replacing cutting fluid. The machine tool cutter temperature control device is characterized by comprising a cold conduction block, a cooling semiconductor, a radiator, a rubber gasket, a movable clamp, a temperature sensor, an adjustable sleeve and a controller assembly, wherein the cold conduction block is in contact with a cutter handle through heat conduction silicone grease; cutter waste heat is absorbed through the Peltier effect of the cooling semiconductor; and the waste heat is transmitted to the radiator through a heat conduction plate so as to be dissipated. A temperature monitoring module monitors the contact temperature of a cutter and a workpiece in real time through an infrared radiation sensor and inputs a signal to the controller assembly, and the controller assembly adjusts the current passing through the cooling semiconductor according to the preset temperature and the real-time temperature so as to control refrigeration power. According to the machine tool cutter temperature control device provided by the invention, no cutting fluid is needed, no waste liquid is discharged, no noise is generated, continuous work can be achieved, the power is controllable, high-precision temperature control can be achieved, and the cutter and a cutting material can be reversely heated under the special process requirement.

The invention provides a micro-nano integrated solid-state thin-film lithium battery and a preparation method thereof. The micro-nano integrated solid-state thin-film lithium battery comprises a substrate and a plurality of thin-film lithium battery micro-units formed on the substrate, wherein the substrate is provided with a conductive circuit; the thin-film lithium battery micro-units are electrically connected to the conductive circuit; each thin-film lithium battery micro-unit comprises two independent current collectors, a positive electrode film, a solid electrolyte membrane and a negative electrode film which are successively formed on the substrate; the two current collectors are electrically connected to the conductive circuit; one of the current collectors is in electrical contact with the positive electrode film; the other one of the current collectors is in electrical contact with the negative electrode film; and the solid electrolyte membrane is disposed between the positive electrode film and the negative electrode film. The micro-nano integrated solid-state thin-film lithium battery of the invention can meet the requirements for high voltage, high energy density andhigh power density.

The invention belongs to the technical field of power electronics and particularly relates to a multi-mode electric energy router independent of communication and a seamless switching control method thereof. The electric energy router comprises four control ports which are respectively connected with a photovoltaic converter, an energy storage converter, and a grid-connected inverter and a load inverter in a power electronic transformer, wherein a photovoltaic array and a storage battery pack are respectively connected with a DC bus through the photovoltaic converter and the energy storage converter, and the grid-connected inverter and the load inverter are respectively connected with the DC bus. The method comprises steps that the energy storage converter is started, and a DC bus voltageis stabilized; the photovoltaic converter adopts a forward disturbance observation mode to realize a maximum power point tracking mode, and a reverse disturbance observation mode is adopted to realizea limited power operation mode when the output voltage exceeds a threshold value; the grid-connected inverter is switched among a grid-connected mode, an island mode and a blocking mode; the load inverter stabilizes the output voltage or enters a limited power mode as required.

The invention relates to a current source-type uninterrupted power switch for an AC power distribution system, and belongs to the technical field of combination of power electronics and a power distribution technology. The current source-type uninterrupted power switch comprises low-capacity CSCs, a high-capacity CSC, an electronic switch and a controller, wherein DC sides of the low-capacity CSCs are mutually connected through a DC bus of the power switch; DC outlets of the low-capacity CSCs are connected with hybrid DC change-over switches in parallel; an AC side of the high-capacity CSC is connected with one end of the electronic switch through an AC circuit breaker, the DC side is connected with the DC bus in series and the DC outlet is connected with the hybrid DC change-over switches in parallel; the other end of the electronic switch is connected with an AC substation; and the controller is connected with the electronic switch, the low-capacity CSCs and the high-capacity CSC through signal lines separately. According to the power switch, the utilization efficiency of a single main transformer is improved; the total capacity of the current source converter stations is reduced; the overall loss of the system is reduced; the overall investment quota of equipment is reduced; and the overall system more economically and reliably runs.

The present invention relates to a hydraulic actuator arrangement (10), comprising a hydraulic actuator (12, 15, 55, 56) and a control device (14) to control the flow of hydraulic medium to and / or from the hydraulic actuator. The hydraulic actuator arrangement (10) comprises an energy accumulator unit (26, 27) connected to the hydraulic medium discharged from the hydraulic actuator. The invention also relates to hydraulic treatment arrangement for fiber web machine web rolls and / or reeling shafts, which comprises at least one machine element (1.10) driven by the hydraulic actuator arrangement (10).

The invention discloses a small-sized electric walking type multi-functional vehicle for removing snow and cleaning, and relates to a snow removing multi-functional vehicle. The small-sized electric walking type multi-functional vehicle is characterized in that the outer bottom part of a battery box is connected and fixed with a center bracket (8), a wheel (7) is hinged at the lower end of the center bracket (8), a direct-current motor is arranged at the center part of the wheel (7), a power supply of the direct-current motor is connected with a storage battery (4), a shaft of the direct-current motor is directly connected with a center shaft of the wheel (7), the center part of the wheel (7) is connected with a supporting arm type cross beam (9) of a snow removing shovel (1), the lower end of a handrail bracket (6) is hinged at the center part of the wheel (7), a handrail (5) is arranged at the upper end of the handrail bracket (6), and the handrail (5) is provided with a control handle of a clutch device. The small-sized electric walking type multi-functional vehicle for removing the snow and cleaning, disclosed by the invention, adopts semi-automatic mechanical power, has a smaller vehicle body, adopts a single wheel design, can be used as the snow removing vehicle by assembling the snow removing shovel, can be used for the snow removing work in places such as small roads, residential areas and campus by replacing the total-labor snow removing mode, and can be used as a daily transporting or cleaning vehicle or a mop vehicle by disassembling the snow removing shovel when not in snow removing.

The invention discloses a superconducting magnet repulsive rock static blasting device. The superconducting magnet repulsive rock static blasting device comprises an upper tube, a lower tube and a base. The two opposite side faces of the lower tube are provided with openings. The lower tube is internally provided with two superconducting magnets arranged oppositely. The bottoms of the superconducting magnets are equidistantly and uniformly provided with a plurality of sliding devices. The sliding devices are slidably connected with the upper portion of the base. Currents are input into the twosuperconducting magnets arranged oppositely to generate mutually repulsive magnetic fields. According to the superconducting magnet repulsive rock static blasting device, the superconducting magnetshaving the characteristics of high transformation temperature at low temperature and extremely high critical magnetic fields are used as an energy source of the rock blasting device; the superconducting magnets generate the repulsive magnetic fields, and the repulsive magnetic fields push away the outer walls. The superconducting magnet repulsive rock static blasting device is safe, reliability and less in energy consumption.

The invention relates to a low-temperature hydraulic residual pressure power generation technology, in particular to an integrated totally-closed low-temperature hydraulic power generation device. Inorder to solve the technical problem that only energy can be recycled by an existing low-temperature hydraulic power generation device and energy conversion cannot be achieved, the integrated totally-closed low-temperature hydraulic power generation device provided by the invention comprises a turbine enclosure, a power generation enclosure, a main shaft, a liquid inlet runner and a liquid outletrunner, wherein one end of the power generation enclosure is connected with the turbine enclosure by an intermediate segment enclosure, the other end of the power generation enclosure is connected with an enclosure end cover, a support segment is further arranged in the intermediate segment enclosure, the main shaft penetrates through the support segment and is arranged between the turbine enclosure and the enclosure end cover, a turbine is arranged on the main shaft, a guide vane is fixedly connected with an inner wall of the turbine enclosure, an excitation machine stator winding and a powergenerator stator winding are arranged in the power generation enclosure, a excitation machine rotor winding and a power generator rotor winding are arranged on the main shaft, and the power generation enclosure communicates with a liquid outlet runner by a backflow pipe. By the device, leakage is prevented, and meanwhile, mechanical energy can be converted to electric energy to be output.

The invention relates to a technology of relieving near-well zone condensate oil blockage and shaft liquid accumulation, in particular to a condensate oil well reservoir RC electric heating film heating oil extraction system. The condensate oil well reservoir RC electric heating film heating oil extraction system has the characteristic of underground local high-power heating, and has the advantages that a heater adopts a design realizing the flexible power regulation; the electric heating conversion efficiency is high; the service life is long; safety and reliability are realized; the operation is convenient; and the use range is wide. Contaminants blocked in a near-well zone oil flow passage can be relieved, and a shut-down oil well can recover the normal production.

The invention relates to an uninterrupted electric power exchanger used for an alternating current power distribution system, and belongs to the technical field of a combination of electric power electronics and a power distribution technology. The uninterrupted electric power exchanger comprises a small-capacity VSC, a high-capacity VSC, an electronic switch and a controller, wherein the alternating current side of the small-capacity VSC is connected with a corresponding alternating current substation through an alternating current circuit breaker while the direct current side of the small-capacity VSC is connected with the direct current bus of the uninterrupted electric power exchanger; the alternating current side of the high-capacity VSC is connected with one end of the electronic switch while the direct current side of the high-capacity VSC is connected with the direct current bus of the uninterrupted electric power exchanger; the other end of the electronic switch is connected with the corresponding alternating current substation through the alternating current circuit breaker; and the controller is connected with the electronic switch, the small-capacity VSC and the high-capacity VSC separately through signal lines. By adoption of the electric power exchanger, the utilization efficiency of a single main transformer is improved, the total capacity of the voltage source convertor station is reduced, the overall loss of the system is lowered, the total investment amount of the equipment is reduced, and the more economic and reliable operation of the overall equipment is achieved.

The invention provides a micro-nano integrated solid-state thin-film lithium battery and a preparation method thereof, which includes a substrate and a plurality of thin-film lithium battery micro-units formed on the substrate, the substrate is provided with conductive lines, and multiple The thin-film lithium battery micro-units are electrically connected to the conductive circuit, and the thin-film lithium battery micro-units include two independently arranged current collectors, a positive electrode film, a solid electrolyte film and a negative electrode film sequentially formed on the substrate, wherein , two current collectors are respectively electrically connected to the conductive circuit, wherein one current collector is in electrical contact with the positive electrode film, and the other current collector is in electrical contact with the negative electrode film, and the solid electrolyte film is arranged between the positive electrode film and the between the negative electrode films. The micro-nano thin-film solid-state lithium battery of the present invention can meet the use requirements of high voltage, high energy density and high power density.

The invention relates to the technical field of radio frequency pulse signal source generation circuits, in particular to a radio frequency pulse signal source generation circuit, which comprises a frequency source module, a radio frequency switch module, a voltage-controlled gain adjustable module, a numerical control attenuation module and a main control module, the voltage-controlled gain adjustable module is electrically connected with the radio frequency switch module and the numerical control attenuation module, the frequency source module communicates with the main control module to obtain a corresponding frequency setting code, and the frequency source module sets a register corresponding to the frequency source module according to data obtained from the main control module; the radio frequency switch module and the voltage-controlled gain adjustable module are arranged to realize pulse modulation of signals, the signals modulated by the radio frequency switch module are continuously sent to the voltage-controlled gain adjustable module, and finally the modulated radio frequency signals are sent to the numerical control attenuation module, so that the purpose of controllable power sent to a receiver is realized. And thus, high suppression degree on continuous waves is realized.

The invention discloses a blasting device capable of achieving cyclic utilization of dust and a using method of the blasting device. The device comprises a heating unit, an oxygen concentration detection unit, a temperature monitoring unit, an early warning unit and a control ignition unit. Compared with the prior art, the device plays the advantage of controllable dust explosion, and is suitablefor tunnel blasting, quartering mining engineering, expansion coal mine fracture and the like; the advantages of large destructive power of common explosives can be reserved, and the purpose of controllable and cyclic utilization can be achieved; the effects of being safe and reliable in use are achieved, flour, metal powder and other dust which does not contain pollutants can be selected according to the environment-friendly requirement, so that the requirements of environmental protection are met; and due to the fact that the device can be recycled, and the price of the dust is low, the purpose of reducing the engineering blasting cost can be achieved.