89results about How to "Reduce loop" patented technology

The invention discloses a high-silica magnesian fluxed pellet for a blast furnace and a production method of the high-silica magnesian fluxed pellet. The high-silica magnesian fluxed pellet comprises, by mass fraction, 3.5%-5.5% of SiO2, 1.5%-2.2% of MgO, 0.8%-1.2% of basicity, not larger than 1.5% of Al2O3, not larger than 0.1% of K2O and Na2O, not larger than 0.02% of Zn, not larger than 0.05% of S and not larger than 0.07% of P. The silica content of the pellet is high, the pellet can be produced through high-silica iron fine powder, the using proportion of the pellet in the blast furnace is improved, meanwhile, the using scope of the iron fine powder is enlarged, and the using proportion of the iron fine powder inland is improved. By means of the method, the high-silica iron fine powder can be used for producing the magnesian fluxed pellet, the production cost is reduced, meanwhile, the pellet qualified in quality can be obtained, and requirement of the blast furnace for using the high proportion of pellet is met; and by means of the method, the scope of the iron fine powder used for producing the magnesian fluxed pellet can be expanded, and the using amount of the high-silica iron fine powder inland can be particularly improved. The method has the beneficial effects of being low in production cost, simple in process and excellent in product performance.

The invention discloses a wireless sensor network system under an emergency environment, which comprises a monitoring center (also called as an upper computer) and an assorted server as well as a wireless sensor network, wherein the structure of the network is designed as a whole, the model selection requirements on each mode at the node are provided, a proper MAC (Media Access Control) protocol and a routing protocol are selected and designed, and an access mechanism of a mobile node and an interest effective communication path decision rule in a routing process are provided, so that a wireless sensor network monitoring system is quickly deployed in a disaster occurrence region to monitor all kinds of environmental indexes in real time and grasp the trend of the disaster, and thus the efficiency and the quality for emergency rescue are effectively improved.

The invention relates to an electromagnetic interference filter applicable to high-voltage Hall sensors. The electromagnetic interference filter comprises a common-mode filter inductor L1, common-mode suppression capacitors C1 and C2 of a sampled signal input and output circuit-pair housing case and a differential-mode suppression capacitor C3. The differential-mode suppression capacitor C3 is arranged between the sampled signals; the common-mode filter inductor L1 comprises a button type magnetic ring and a winding, and the winding is arranged on a printed circuit board, penetrates an axial hollow portion of the magnetic ring along the axial direction of the magnetic ring and is wound around the magnetic ring according to the identical direction. The electromagnetic interference filter has the advantages that induction of the filter can be increased, filter effects can be enhanced, and problems in the aspects of electric clearance between high-voltage input cables, insulation and the like can be solved.

The invention discloses a high-power pulse width tunable semiconductor laser light source module, which utilizes optoelectronic integrated packaging technology to integrate laser drive control and a laser for package, performs fiber output on semiconductor laser coupling through a polarization combining technique and a self-focusing lens fiber coupling technology to achieve high peak power, smallvolume and narrow pulse, and uses an external trigger signal to realize pulse width tunable function. Compared with fiber lasers and solid lasers, the high-power pulse width tunable semiconductor laser light source module has obvious advantages in performance, cost and photoelectric conversion efficiency.

The invention provides an integrated IPU system for a hydrogen fuel cell automobile. The integrated IPU system comprises a control board, an integrated circuit and a power board. The control panel comprises a motor controller MCU, a high-voltage distribution box PDU, a vehicle-mounted buck converter DCL, and a fuel cell boosting converter FCBC. The control panel is electrically connected with theintegrated circuit through a wire, the power panel is connected with the integrated circuit through a wire, an IGBT power element is integrated on the power panel, and the IGBT power element is connected to a driving motor, a PTC, a compressor and a storage battery through five sets of wire output. A four-in-one control system of the motor controller MCU, the fuel cell boosting converter FCBC, thehigh-voltage distribution box PDU and the vehicle-mounted buck converter DCL is integrated. The highly integrated power domain controller effectively reduces wire harness loops, has a very high contribution rate to light weight of wire harnesses, reduces ECU parts of the whole vehicle, reduces the production design management cost of a power system, and is very suitable for hydrogen fuel cell vehicles.

The invention discloses an impact voltage generating device. The impact voltage generating device comprises a host computer, a body, a DC high voltage power source and an impact generation loop, wherein the DC high voltage power source comprises a transformer, a silicon stack and an output end, and the host computer is fixed in the body. The impact voltage generating device is characterized in that the DC high voltage power source employs the closed structure, the transformer and the silicon stack are fixed in the body, the DC voltage is transmitted by the output end to the impact generation loop, the impact generation loop is a modular structure composed of multi-level modules, and the modules in each level are fixed and connected in series through supporting insulators and fixing supports. The impact voltage generating device is advantaged in that the transmission overvoltage in the high voltage environment can be enhanced, and safety performance can be improved.

The invention relates to a process performing methanation on gas synthesized by coal to synthesize substitute natural gas. The process is characterized in that catalysts are loaded into methanation reactors R1, R2, R3, R4 and R5, reduction pretreatment is performed, and the methanation reaction is performed by parallelly connecting the reactors R1 and R2 and then serially connecting the reactors R1 and R2 with the reactors R3, R4 and R5 to obtain the substitute natural gas. The process has the advantages that the temperature of the methanation reactors is controlled effectively, the process does not need gas circulation, and power consumption and corresponding energy consumption of the reaction process are lowered greatly.

The invention belongs to the technical field of electronic equipment, and provides a shielding cover, a circuit board assembly, and electronic equipment. The circuit board assembly comprises a substrate and a shielding case, wherein the surface of the substrate is provided with an electronic module, and the shielding case covers the electronic module. The interior of the substrate is provided with a conductive layer serving as a reference main floor. The substrate is provided with a jack, and the wall of the jack is provided with a conductive piece which is electrically connected with the conductive layer. The bottom of the shielding case is provided with a plug part, and the plug part is disposed in the jack, and is electrically connected with the conductive piece. Because the conductive piece is directly electrically connected with the conductive layer, serving as the reference main floor, in the substrate, a radiation interference signal on the shielding case can be directly imported into the reference main floor in the substrate through the conductive piece. Therefore, the circuit board assembly reduces the impedance through the reduction of a loop between the shielding cover and the reference main floor, and improves the capability of the shielding case for resisting the radiation interference signal.

The invention discloses an intelligent electric air valve control system and method applied in urban rail traffic. The control system comprises a circuit center monitoring system, a station level controller, an upper monitoring system controller, an intelligent electric air valve control box, an intelligent electric fan control box and a network communication bus, wherein an intelligent electric air valve controller is arranged in the intelligent electric air valve control box; the intelligent electric air valve controller is electrically connected with a plurality of intermediate relays; theintermediate relays are electrically connected with an air valve actuator; the air valve actuator is connected with an electric air valve; and the intelligent electric air valve controller is also connected with a display in a communication manner. According to the control system, the quantity of power distribution loops and the quantity of cables can be decreased, elements in the electric air valve control box are few, and the wiring is simple, so that the scale of civil engineering of a station can be reduced to the great extent, the energy of the air valve and the power quality can be managed conveniently, and the operation and maintenance of the air valve can be facilitated.

The invention relates to a kilowatt-level underwater nuclear reactor power supply, comprising a fuel, a control drum, a radial reflection layer, a safety rod passage, a heat pipe and an axial reflection layer; the fuel is a columnar uranium-molybdenum alloy fuel, wherein the safety rod a passage and a heat pipe passage are arranged; the heat pipe is inserted into the heat pipe passage around the safety rod passage; the radial reflection layer is arranged on the outer side of the fuel, and the axial reflection layer is arranged at two ends of the fuel; the control drum is uniformly arranged inthe radial reflection layer. The kilowatt-level underwater nuclear reactor power supply has the beneficial effects as follows: the use of the uranium-molybdenum alloy fuel can avoid the risk of nuclear proliferation by using the fuel with a low degree of enrichment; the scheme uses the heat pipe to guide out core heat, eliminating two larger pressurized water circuits of TRIOS, and the heat pipe has the advantages of being passive and achieving non-single point failure.

A body waste handling article includes a first sheet, a second sheet and a body fluid absorbent core sandwiched between these two sheets, wherein the first sheet defines a liquid-pervious skin-contacting surface. The second sheet is rectangular and has a pair of ends and a pair of lateral edges wherein inside these ends and lateral edges, end flaps and lateral flaps are formed. The end flaps and the lateral flaps are provided with elastic members attached in a stretched state thereto so as extend along the ends and the lateral edges and to become contiguous one to another at corners of the second sheet.

The invention discloses a low-inductance and high-electro-optical-conversion-efficiency vertical cavity surface emitting laser (VCSEL) packaging structure. An N surface light emitting VCSEL laser chipand a P surface light emitting VCSEL chip are packaged in series to reduce packaging leads between electrodes, reduce inductance of the loop and raise the rising edge of the optical pulse. The laserresistance is increased by using the form of series packaging so that the laser chip obtains more voltage drop in the driving loop, correspondingly the voltage drop of other electronic components in the driving loop is reduced and the power consumption of other electronic components is reduced. Furthermore, the loop inductance can be further reduced and the rising edge of the laser optical pulse signal can be raised by parallel connection of two groups of the laser series packaging structures.

The invention discloses a speedy tunneling method for a gas drainage roadway. The speedy tunneling method comprises the following steps: tunneling a return air inclined shaft, a rail inclined shaft and a transportation inclined shaft from the ground, and then respectively digging an return air stone door, a rail stone door, a rail gate way and a transporting stone door in positions respectively corresponding to the return air inclined shaft, the rail inclined shaft and the transportation inclined shaft; exploiting a measure shaft haulage tunnel and a measure well return air haulage tunnel, and then digging auxiliary cutting holes, a part of cutting holes, and a measure shaft gas lane so as to form a ventilation circuit and a transportation system; at the moment, the measure shaft haulage tunnel digs a base plate gas lane through the measure shaft gas lane; simultaneously digging into the base plate gas lane from the rail inclined shaft through the rail gate way, namely, the two ends simultaneously dig the base plate gas lane until the base plate gas lane is through, and the base plate gas lane and the measure shaft haulage tunnel form a gas drainage roadway circuit. The speedy tunneling method can be used for digging the gas drainage roadway quickly, realizes mine safe production, extraction and production, and produces more economic and social benefits.

The invention relates to an offshore wind power plant arrangement structure and an arrangement method. The offshore wind power plant arrangement structure comprises an offshore wind power plant whichis divided into a plurality of block wind power plants by offshore separation areas, and the offshore wind power plant arrangement structure is characterized in that an offshore booster station is arranged in each block wind power plant; a power generation quantity output end of each block wind power plant is connected with an electric quantity input end of the offshore booster station in the block wind power plant to form a power generation quantity boosting structure of each block wind power plant; the electric quantity output ends of all the offshore booster stations are connected togetherthrough submarine cables, and the offshore booster station in one block wind power plant close to the land is provided with a land transmission electric quantity output end to form a land transmissionelectric quantity output end of the offshore wind power plant 1. And the land transmission electric quantity output end is connected with the electric quantity input end of a land centralized controlcenter through a group of landing cables to form a simplified structure type offshore wind power plant arrangement structure. The offshore wind power plant arrangement structure has the characteristics and improvements of few electrical loops, small sea area, low project cost, environmental pollution reduction and the like.

The invention provides a system and a method for preparing ferronickel from laterite-nickel ore, belongs to the field of metal smelting, and solves the problems of difficulties in transporting, drying and crushing of the high-moisture raw laterite-nickel ore as well as the easiness in ringing and difficulty in reducing, caused by pelletizing difficulty. The method comprises the following steps of 1), pretreating the raw materials; 2) pelletizing; 3) implementing magnetizing roast and water quenching; and 4) grinding the ore, and implementing dry-separation. By means of the system and the method, the problems can be effectively solved, the consumption of electric power and water in the process of grinding and magnetic separation of the laterite-nickel ore roasted ore is reduced, and the piling risk of low tailings is reduced.

The invention provides an integrated seven-in-one system for a hydrogen fuel vehicle. The integrated seven-in-one system comprises a control panel, a power board, an air conditioner compressor controller, an air conditioner compression motor, an electric pile air compression motor controller, an electric pile air compression motor, a drive motor controller, a drive motor and a speed reducer, wherein the control board is connected to the power board; a first CAN communication network and a second CAN communication network are integrated on the control panel; the low-voltage output end of the air conditioner compression motor controller is connected to the second CAN communication network; the low-voltage output end of the electric pile air compression motor controller and the low-voltage output end of the drive motor controller are separately connected to the first CAN communication network and the second CAN communication network; and the high-voltage input end of the air conditioner compression motor controller, the high-voltage input end of the electric pile air compression motor controller and the high-voltage input end of the drive motor controller are connected to the power board.

The invention relates to an integrated BMS system for a fuel battery automobile. The integrated BMS system for the fuel battery automobile comprises a control board and an input port; an integration system is electrically connected to the control board; the integration system is electrically connected with a power board through a lead; an input port is electrically connected with an input end of the control board; a network connection port is connected to the control board through a CAN bus; and a cooling fan, a water pump, a PTC heater and a fan relay are connected to the power board through leads in sequence. According to a four-in-one control system integrated with a power battery BMS, a vehicle control unit VCU, a double-way DCDC and a heat management system, by using a highly integrated power domain controller, a harness circuit is effectively reduced, the lightweight contribution rate of a harness is high, ECU parts of the whole vehicle are also reduced, the production, design and management cost of a power system is reduced, the double-way DCDC possesses expansibility, a high voltage auxiliary power supply can be conveniently integrated, and the integrated BMS system for the fuel battery automobile is very suitable for hydrogen fuel battery automobiles.