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42results about How to "Safety at Work" patented technology
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Dry-process dust-removing and dechlorination combined device for blast furnace gas
InactiveCN102534082AImprove dust removalImprove desulfurization efficiencyDust arrestersAdditive ingredientChloride
The invention discloses a dry-process dust-removing and dechlorination combined device for blast furnace gas. The device comprises a power generation device and a reducing valve group which are connected to the back of a blast furnace through a pipeline and connected with each other in parallel, and is characterized in that a grain bed dust remover before the power generation device and the reducing valve group is connected in series with the power generation device and the reducing valve group; and dechlorination grains, desulfuration grains and deamination grains are filled in the grain bed dust remover. The device can be used for conducting dust removing, dechlorination, desulfuration, deamination, moisture absorption, and recycling of residual heat and excess pressure on blast furnace gas effectively, and has the advantages as follows: the suitability on ingredient variation of blast furnace gas is high; problems of corrosion on equipment and pipelines and salification caused by dry-process dust removing are solved; and no corrosion-resistant measure is required in pipelines and equipment to follow-up users. The dust content of purified gas at the outlet of the device is 0 to 5 mg / Nm<3>; the chloride ion content in gas condensed water is smaller than 300 mg / L; and the pH value is 6 to 8.
Owner:CISDI ENG CO LTD
Constant-current source driver circuit and device
InactiveCN101668365AExtend your lifeHigh comprehensive benefit targetElectric light circuit arrangementDriver circuitResistance capacitance
The invention discloses a constant-current source driver circuit used for driving an LED illumination light source and an integrated current source device based on the circuit. A low-cost resistance-capacitance voltage-reduction type drive circuit is simple in structure and low in cost, but has the disadvantages of poor performance and low efficiency, and damages an LED light source device to a certain extent; a series voltage stabilization type circuit has the disadvantages of large volume, heavy weight, high heat generation, low efficiency and energy waste; and a PWM voltage-stabilizing or constant-current power supply has relatively good performance and higher efficiency, but has higher cost and an important problem of introducing EMI electromagnetic interference. The constant-current source drive circuit has the advantages of good constant-current effect, low cost, high efficiency, long service life and no EMI. The key point to achieve the advantages lies in adopting a CRD device to provide stable base current for a regulating tube so as to greatly improve the overall constant-current technical index on the premise of keeping simple structure and low cost of the constant-current circuit.
Owner:李旭明 +2
Thermal energy integrated management system suitable for hypersonic flight vehicle and air vehicle
ActiveCN108750123AFulfil requirementsSafety at WorkPower plant cooling arrangmentsAir-treatment apparatus arrangementsFlight vehicleSpeed of sound
The invention discloses a thermal energy integrated management system suitable for a hypersonic flight vehicle and an air vehicle. The thermal energy integrated management system suitable for the hypersonic flight vehicle comprises a cockpit air system, a fuel system, a propulsion system, airborne equipment, a coolant cooling system and a closed circulating cooling system. When the flight Mach number of the air vehicle is a first preset range value, the coolant cooling system and the closed circulating cooling system both do not work; when the flight Mach number of the air vehicle reaches a second preset range value, the coolant cooling system does not work, and the closed circulating cooling system works; and when the flight Mach number of the air vehicle reaches a third preset range value, the coolant cooling system and the closed circulating cooling system both work. According to the thermal energy integrated management system suitable for the hypersonic flight vehicle and the air vehicle, by using the closed circulating cooling system and the coolant cooling system, the thermal of the air vehicle during hypersonic flight is effectively managed, the problems that the performanceof the air vehicle cannot meet requirements and the safety of the air vehicle is lower are solved, and the problem that the payload space of the air vehicle is small is solved.
Owner:BEIHANG UNIV
Wire-traction wall lifting and carrying combining mechanism
ActiveCN102602859AIncrease the lengthGuarantee the control accuracy of kinematics solutionLifting devicesWork performanceReduction drive
A wire-traction wall lifting and carrying combining mechanism relates to a carrying mechanism used in the fields of construction and wall repair and comprises a loading lifting basket, two counterweight drive devices, two counterweight-free drive devices and two counterweights, the loading lifting basket is provided with lugs, the counterweight drive devices are distributed above the loading lifting basket laterally, each counterweight drive device comprises a driving motor, a speed reducer, a friction roll, a fixed pulley, a support and a steel wire and the like, the steel wire penetrate through the friction roll with a helical groove and the fixed pulley, and two ends of the steel wire are connected with the lugs and the counterweights respectively. The counterweight-free drive devices are distributed below the loading lifting basket and each counterweight-free drive device comprises a driving motor, a speed reducer, a winding roll, a fixed pulley, a support and a steel wire and the like, wherein one end of the steel wire is wound on the friction roll with the helical groove, and the other end of the steel wire penetrates through the fixed pulley to be connected with the lugs. The other drive devices are correspondingly identical with the above structure. The wire-traction wall lifting and carrying combining mechanism is large in working space, high in supporting rigidity, stable in working performance and low in energy consumption.
Owner:XIAMEN UNIV
Heat pipe exchanger, air conditioner control heat dissipation module, air conditioner outdoor unit and air conditioner
PendingCN107166564AIncrease the heat exchange areaImprove cooling efficiencyIndirect heat exchangersSpace heating and ventilation detailsHeat pipe heat exchangerRefrigerant
The invention provides a heat pipe exchanger, an air conditioner control heat dissipation module, an air conditioner outdoor unit and an air conditioner. The heat pipe exchanger comprises a heat pipe (1), a condensation end (2) and an evaporation end (3), wherein a circulation loop can be formed by the heat pipe (1), and two-phase fluid flows in the heat pipe (1); the condensation end (2) is formed at one end of the heat pipe (1), and the condensation end (2) can carry out heat exchanging with external air; and the evaporation end (3) comprises a liquid storage component (31) which is connected with the heat pipe (1) and is provided with an inner liquid storage chamber, the liquid storage chamber communicates with the heat pipe (1), and the evaporation end (3) can carry out heat absorption on an air conditioner controller (4). According to the heat pipe exchanger, after passing through the condensation end, a refrigerant can enter the liquid storage chamber of the evaporation end and exchanges heat with a controller panel through the liquid storage chamber; and compared with a manner that the evaporation end is a heat pipe, the heat pipe exchanger has the beneficial effects that the heat exchanging area is increased, the heat dissipation efficiency of the air conditioner controller is improved, and therefore the normal work of the controller is guaranteed.
Owner:GREE ELECTRIC APPLIANCES INC OF ZHUHAI
Intelligent solid state relay with efficient protection function
The invention discloses an intelligent solid state relay with an efficient protection function. The intelligent solid state relay comprises a shell and a control system, wherein a heat dissipation device is arranged in the shell; the heat dissipation device is arranged on a bottom board of the shell; a DCB board is arranged on the heat dissipation device; the DCB board is provided with an integrated circuit; the integrated circuit comprises a coupling circuit, a triggering circuit, a switching circuit, an absorbing circuit and a zero pass control circuit; the control system comprises a detection module, a control module and an execution module; the detection module is used for detecting a voltage and current in a relay circuit and temperatures of elements; the control module is used for receiving data of the detection module, comparing the data with a preset threshold, and sending an execution command; and the execution module is used for receiving the execution command sent by the control module to perform over-voltage protection, over-current protection and over-heat protection. Through adoption of the intelligent solid state relay, heat dissipation processing, over-current protection and over-voltage protection can be performed automatically and rapidly, and normal working of the solid state relay is protected effectively.
Owner:CHENGDU DESHANNENG TECH CO LTD
Large-caliber reflection-type light guide machine and working method thereof
InactiveCN104595842AReduce the temperatureExtend your lifeUsing daylightSpectral modifiersFollow-the-sunLight guide
The invention discloses a large-caliber reflection-type light guide machine and a working method thereof, belonging to the technical field of solar energy application. The large-caliber reflection-type light guide machine consists of an azimuth angle drive device, a height angle drive device, a focus lens group, a sun location system, a focusing device and an optical fiber beam. The focusing device is used for adjusting a receiving end surface of the optical fiber beam to a focal point of the focus lens group, and the focus lens group is driven by the azimuth angle drive device and the height angle drive device, so that the focus lens group can follow the sun, the infrared ray in the incidence light is eliminated by utilizing a filter lens of the focus lens group, and the uniformity of the intensity of the focus spot can be realized by virtue of a light homogenizing cavity of the focus lens group; the sun location system adopts a photosensitive element to provide a sun roughly location signal and utilizes a high temperature sensor to provide a precise position signal of the focus spot. By adopting the large-caliber reflection-type light guide machine, the infrared ray in the sun focus light is eliminated, the uniformity of the intensity of the focal spot can be realized, the service life of the optical fiber beam can be greatly prolonged, and the position detection reliability of the focus spot can be improved by utilizing the high temperature sensor.
Owner:宋记锋
Radiating device for controller of air conditioner, air conditioner and control method
PendingCN107763815AGuaranteed uptimeIncrease the ambient temperature rangeMechanical apparatusCooling/ventilation/heating modificationsThermodynamicsMechanical engineering
The invention provides a radiating device for a controller of an air conditioner, the air conditioner and a control method. The radiating device for the controller of the air conditioner is characterized in that the radiating device comprises the controller (1) and a heat pipe assembly (2); the heat pipe assembly (2) comprises heat pipe condensing ends (21) and a heat pipe evaporation end (22), and the heat pipe evaporation end (22) can conduct heat absorption cooling on the controller (1); and the heat pipe condensing ends (21) are connected to the at least one position, between an outlet ofa condenser (4) and an air suction port of a compressor (3) in a refrigerant circulation system of the air conditioner, of a refrigerant pipeline so as to release heat to the positions of the refrigerant pipeline. According to the radiating device, the heat pipe evaporation end can conduct heat absorption cooling on the controller and transfers heat to the refrigerant pipeline of the refrigerant circulation system through the heat pipe condensing ends, thus the radiating efficiency of the controller of the air conditioner is improved effectively, normal and safe working of the controller is guaranteed, the air conditioner can operate reliably in the high-temperature environment, and the operation environmental temperature range of the air conditioner is enlarged.
Owner:GREE ELECTRIC APPLIANCES INC
Bionic microcapsule containing molybdenum disulfide and preparing method and application of microcapsule
InactiveCN108467516AReduce friction and wearGuaranteed to workMicroballoon preparationMicrocapsule preparationEmulsionToluene
The invention discloses a bionic microcapsule containing molybdenum disulfide and a preparing method and application of the microcapsule. The bionic microcapsule comprises a core material and a wall material. The core material is wrapped in the wall material through an emulsion reaction of molybdenum disulfide. Urea resin is adopted as the wall material. Methylbenzene is used as an external waterphase, a urea resin prepolymer and a molybdenum disulfide suspension are slowly added to the external water phase for an emulsion reaction, and pH is controlled to be 3-3.8; after the reaction ends, centrifugal separation, cleaning and drying are conducted to obtain the bionic microcapsule. The invention further discloses a water lubricated bearing bionic material which is prepared by mixing the bionic microcapsule containing molybdenum disulfide with a high polymer substrate material. The obtained water lubricated bearing bionic material has wear resistance to a certain extent; meanwhile, itis avoided that when a composite is prepared, the compatibility difference of different materials is quite large, the composite is prone to cracks, additives are prone to leakage and filling lubricants can hardly have lubricating and wear reduction functions under the extreme conditions.
Owner:WUHAN UNIV OF TECH
Multiple on-line self-adaption defrosting control method and device
ActiveCN108224679AImprove heating effectImprove the problem of long defrosting timeMechanical apparatusSpace heating and ventilation safety systemsLower limitEngineering
The invention provides a multiple on-line self-adaption defrosting control method. The method comprises the steps that S1, the upper limit value of the needed time for defrosting of multiple on-line single units is set to be A, and the lower limit value of the needed time for defrosting of the multiple on-line single units is set to be B; S2, the time tmax used by the unit with the longest defrosting time in a multiple on-line and the time tmin used by the unit with the shortest defrosting time are obtained; S3, tmax and A as well as tmin and B are compared, and when tmax>=A, the frequencies of compressors of the corresponding units are increased; and when tmin<=B, the frequencies of the compressors of the corresponding units are decreased. According to the multiple on-line self-adaption defrosting control method, the heating effect of the multiple on-line can be improved, and the defrosting time of the whole multiple on-line is reduced.
Owner:NINGBO AUX ELECTRIC
Heat-pipe heat exchanger, air-conditioner controller cooling assembly, air-conditioner outdoor unit and air conditioner
ActiveCN107314471AImprove cooling efficiencyFor the purpose of heat dissipation and coolingEfficient regulation technologiesIndirect heat exchangersEngineeringRefrigerant
The invention provides a heat-pipe heat exchanger, an air-conditioner controller cooling assembly, an air-conditioner outdoor unit and an air conditioner. The heat-pipe heat exchanger comprises a heat pipe (1), a condensation end (2) and an evaporation end (3), wherein the heat pipe (1) can form a circulating loop, and two-phase fluid flows in the heat pipe (1); the condensation end (2) is formed at one end of the heat pipe (1) and can exchange heat with outside air; and the evaporation end (3) comprises heat-exchange component (31) which is provided with a groove structure and can accommodate the heat pipe (1) to allow the heat pipe (1) to penetrate through the groove structure, the heat-exchange component (31) is attached to the heat pipe (1), and heat of an air-conditioner controller (4) can be absorbed through the heat-exchange component (31). According to the heat-pipe heat exchanger, the air-conditioner controller cooling assembly, the air-conditioner outdoor unit and the air conditioner, after passing through the condensation end, refrigerants can absorb heat of the controller through the heat pipe and the heat-exchange component at the evaporation end, so that the purpose of cooling the controller is achieved; and compared with a scheme that a heat pipe is mounted at an evaporation end, the heat-exchange area is effectively enlarged, the cooling efficiency for the air-conditioner controller is improved, and accordingly normal work of the controller is ensured.
Owner:GREE ELECTRIC APPLIANCES INC
Numerical control machine tool data management system and method
PendingCN113126563AMonitor real-time statusMonitoring accuracyProgramme controlComputer controlNumerical controlControl engineering
The invention provides a numerical control machine tool data management method. The method comprises the steps of collecting a real-time detection result of a workpiece machining process of a numerical control machine tool; performing quality evaluation on the machined workpiece to obtain quality evaluation information of the workpiece; inputting a real-time detection result and a quality evaluation information into a numerical control machine tool model, and analyzing the form and location tolerance and the surface roughness of the workpiece to obtain a workpiece error; adjusting operating parameters, dynamic precision and cutter parameters in a digital control program of the numerical control machine tool according to the workpiece errors; and enabling the numerical control machine tool to carry out secondary machining on the surface with the workpiece error so as to compensate the workpiece error.
Owner:AECC COMML AIRCRAFT ENGINE CO LTD
Villus removing equipment for wool for writing brush making
ActiveCN106945428ASafety at WorkConvenience to workPen repairingOther pensEngineeringBilateral symmetry
The invention relates to villus removing equipment, in particular to villus removing equipment for wool for writing brush making. The technical problem to be solved by the invention is to provide the villus removing equipment for the wool for writing brush making, the villus removing equipment can help staff fix the wool, and thus working is convenient. The provided villus removing equipment for the wool for writing brush making comprises an installation frame, support rods, placing plates, first springs, combs, an elastic rope and the like. The support rods are arranged at the bottom in the installation frame in a bilateral symmetry mode. Placing plates are connected to the top ends of the support rods. The first springs are arranged on the parts, on the front sides of the support rods, at the bottom in the installation frame in a bilateral symmetry mode. The first springs are arranged on the inner sides of the support rods. The combs are connected to the top ends of the first springs. The elastic rope is connected to the lower portion of the inner left wall of the installation frame. According to the villus removing equipment, the wool is fixed to the placing plates first through fixing devices, then villus removing treatment is conducted on the wool through the combs, and combed villi are cut off with scissors when the wool is fixed.
Owner:HUZHOU SHANLIAN YONGHEFENG PEN HOUSE
Cooling device of motorcycle cylinder
InactiveCN106523172ASimple structureReasonable designCylinder headsCylindersEngineeringControl valves
The invention discloses a cooling device of a motorcycle cylinder. The cooling device comprises a vortex chamber and a compressed air bag; a vortex generator is arranged in the vortex chamber; an air inlet is arranged on the top of the vortex chamber; the air inlet is fixedly connected with the compressed air bag through an air inlet pipe; a control valve is further arranged on the air inlet pipe; a vortex rectifier tube is also fixedly arranged on one side of the vortex chamber; a cool air outlet and a hot air outlet are separately arranged on two sides of the vortex rectifier tube; the cool air outlet and the hot air outlet are separately fixedly connected with an air inlet end of a cool air pipe and an air inlet end of a hot air pipe; and the outer surface of the hot air pipe is wrapped by a cooling clamping bag. The cooling device of the motorcycle cylinder is simple in structure and reasonable in design; the cylinder can be rapidly cooled in a safe and effective manner; service life of parts in the cylinder is prolonged; and working efficiency of the cylinder is effectively improved.
Owner:范广志
Heat dissipating device of air conditioner controller and air conditioner
InactiveCN107631446AGuaranteed uptimeIncrease the ambient temperature rangeMechanical apparatusCooling/ventilation/heating modificationsComputer moduleEngineering
The invention provides a heat dissipating device of an air conditioner controller and an air conditioner. The heat dissipating device of the air conditioner controller comprises a controller (1) and aheat absorbing module (3) which can perform heat-absorbing and cooling on the controller (1), wherein the heat absorbing module (3) comprises a heat exchange pipeline (31); the heat exchange pipeline(31) comprises an inlet tube (31a) and an outlet tube (31b); the inlet tube (31a) communicates with a low-pressure refrigerant pipeline in a refrigerant circulating system of the air conditioner; andthe outlet tube (31b) communicates with a gas absorbing hole of a compressor (4) in the refrigerant circulating system of the air conditioner. The heat dissipating device can suck in a low-pressure low-temperature refrigerant from the low-pressure refrigerant pipeline of the refrigerant circulating system, introduces the low-pressure low-temperature refrigerant into the heat absorbing module to perform heat-absorbing and cooling on the controller, and flows back into the gas absorbing hole of the compressor through the outlet tube, so that heat dissipating efficiency of the air conditioner controller is effectively improved, normal and safe work of the controller is guaranteed, the air conditioner can reliably operate under a high-temperature environment, and environment temperature rangefor air conditioner operation is increased.
Owner:GREE ELECTRIC APPLIANCES INC
Gluing method for battery cell
PendingCN114069018AStrong bondGood adhesionAssembling battery machinesFinal product manufactureSinusoidal waveformSine wave
The invention discloses a gluing method on a battery cell. The gluing method is characterized by comprising the following steps: S1, determining a gluing area on the battery cell; S2, gluing according to a preset track to form a gluing strip; S3, tightly pressing adjacent battery cells; and S4, completing fixed bonding of all the battery cells. According to the gluing method for the battery cell, the gluing area on the battery cell is determined, then gluing is performed according to the preset track to form the gluing strip such as a square waveform or a sine waveform, the adjacent battery cells are tightly pressed, gluing work is completed, a plurality of glue blank areas are prevented to be formed at the bonding position of the two battery cells, bonding between the battery cells is firmer, and the battery box can work safely and normally.
Owner:惠州市亿高新能源有限公司
Integrated environment regulation and control device and environment regulation and control method
ActiveCN112228967AReduce the temperatureEnsure air safetyLighting and heating apparatusSubstation/switching arrangement cooling/ventilationToxic gasFresh air
The invention discloses an integrated environment regulation and control device and an environment regulation and control method, and belongs to the technical field of power transformation ventilationequipment. The integrated environment regulation and control device comprises an integral machine body installed and arranged in a power distribution room, the machine body is divided into a heat dissipation cavity and an indoor cavity, the heat dissipation cavity is provided with a heat dissipation channel, and the indoor cavity is provided with a fresh air channel and an indoor air return channel. When the external temperature of the power distribution room is lower than the internal temperature of the power distribution room, the temperature of the power distribution room is reduced by introducing fresh air with low external temperature, and an evaporator does not need to be started. According to the scheme that the indoor temperature is reduced by replacing air, the working power needed by equipment is greatly reduced, and the integrated environment regulation and control device has the advantages of saving energy and being efficient. And meanwhile, the replaced air contains toxicgas and dust, and fresh air is introduced, so that the air safety of an operation environment in the power distribution room is guaranteed.
Owner:ZHEJIANG DUMEI ELECTRIC POWER TECH
Multifunctional environment-friendly tower
ActiveCN105041029ABeautify environmentPurify and remove dustTowersGenerators/motorsEnvironmentally friendlyEnvironmental resistance
The invention discloses a multifunctional environment-friendly tower. The multifunctional environment-friendly tower comprises an inner-layer hollow metal pillar and an outer-layer hollow metal pillar which are coaxially arranged. The outer surface of the outer-layer hollow metal pillar is provided with a heat absorbing material layer, and a transparent heat insulation layer is further arranged outside the heat absorbing material layer. At least one semiconductor temperature difference power generation module penetrates through the inner-layer hollow metal pillar or the outer-layer hollow metal pillar to be used for temperature difference power generation. The output end of the semiconductor temperature difference power generation module is connected with the input end of a voltage stabilizing module, the output end of the voltage stabilizing module is connected with the input end of a boosting module, the positive electrode of the output end of the boosting module is connected to the outer-layer hollow metal pillar, and the negative electrode of the output end of the boosting module is connected to the inner-layer hollow metal pillar. The multifunctional environment-friendly tower has the own function and can also conduct self-power-generation, purification and dust removal, a large amount of anions are provided for surroundings, and the tower is multifunctional and environmentally friendly.
Owner:NINGBO TIANLING INFORMATION TECH
Oil, abrasion and corrosion resistant sheathing material for marine work cables and preparation method thereof
InactiveCN107383857AGood oil resistanceImprove toughnessPlastic/resin/waxes insulatorsUltravioletStearate
The invention relates to an oil, abrasion and corrosion resistant sheathing material for marine work cables. The oil, abrasion and corrosion resistant sheathing material comprises, by weight, 100 parts of modified polyurethane, 10 to 30 parts of mica nanosheets, 10 to 20 parts of kaolin nanosheets, 5 to 15 parts of a methyl methacrylate-acrylate-styrene copolymer, 1 to 3 parts of dicumyl peroxide, 1 to 2 parts of zinc stearate, 1 to 2 parts of glycerol monostearate, 5 to 8 parts of 2-octyl-4-isothiazolin-3-one, and 2 to 5 parts of 4, 5-dichloro-2-octyl-4-isothiazolin-3-one. The oil, abrasion and corrosion resistant sheathing material has excellent functions of oil resistance, good toughness, abrasion resistance, cold resistance, water resistance, aging resistance, acid and alkali resistance, weather resistance, long service life, UV resistance and energy release.
Owner:JIANGSU PUCAO TECH CO LTD
Battery over-current charging protection circuit
PendingCN111987760AHigh precisionReduce driftElectric powerBattery overcurrent protectionElectrical batteryNegative power
The invention discloses a battery over-current charging protection circuit. The circuit comprises a V2I voltage-to-current conversion module, an over-current charging protection threshold voltage setting module, a comparator, a negative high voltage bearing module, a positive power input port VDD, a grounding input port VSS, an input port OCP and an input port CS. The V2I voltage-to-current conversion module is electrically connected with the over-current charging pack threshold voltage setting module, the comparator is respectively connected with the negative high voltage bearing module and the over-current charging protection threshold voltage setting module in parallel, and the positive power supply input port VDD is a positive power supply. The grounding input port VSS is a negative power supply; the input port CS is a current induction input port, and the input port CS is connected with the battery. The invention belongs to the technical field of battery charging, and particularlyprovides a battery over-current charging protection circuit which is high in process adaptability, high in precision, high in safety and capable of covering wider application.
Owner:五颗星半导体(无锡)有限公司
Integrated environment control device and environment control method
ActiveCN112228967BReduce the temperatureEnsure air safetyLighting and heating apparatusSubstation/switching arrangement cooling/ventilationToxic gasEnvironmental regulation
An integrated environment control device and an environment control method, belonging to the technical field of power transformation and ventilation equipment, including an integrated body installed in a power distribution room; the body separates a heat dissipation cavity and an indoor cavity; the heat dissipation cavity A heat dissipation passage is provided; the indoor cavity is provided with a fresh air passage and an indoor return air passage. When the temperature outside the power distribution room is lower than the temperature inside the power distribution room, the temperature of the power distribution room is reduced by introducing fresh air with a low external temperature without turning on the evaporator. This scheme of reducing the indoor temperature by replacing the air greatly reduces the working power required by the equipment, and has the advantages of energy saving and high efficiency. At the same time, since the replaced air contains toxic gas and dust, the introduction of fresh air ensures the air safety of the working environment inside the power distribution room.
Owner:ZHEJIANG DUMEI ELECTRIC POWER TECH
A kind of anti-leakage floor heating plate and its manufacturing method
InactiveCN103687103BReduce leakage currentSimple structureLighting and heating apparatusElectric heating systemPolyesterPower flow
Owner:昆山建通电子科技有限公司
Large-diameter reflective light guide machine and its working method
InactiveCN104595842BReduce the temperatureExtend your lifeUsing daylightSpectral modifiersFollow-the-sunLight guide
The invention discloses a large-caliber reflection-type light guide machine and a working method thereof, belonging to the technical field of solar energy application. The large-caliber reflection-type light guide machine consists of an azimuth angle drive device, a height angle drive device, a focus lens group, a sun location system, a focusing device and an optical fiber beam. The focusing device is used for adjusting a receiving end surface of the optical fiber beam to a focal point of the focus lens group, and the focus lens group is driven by the azimuth angle drive device and the height angle drive device, so that the focus lens group can follow the sun, the infrared ray in the incidence light is eliminated by utilizing a filter lens of the focus lens group, and the uniformity of the intensity of the focus spot can be realized by virtue of a light homogenizing cavity of the focus lens group; the sun location system adopts a photosensitive element to provide a sun roughly location signal and utilizes a high temperature sensor to provide a precise position signal of the focus spot. By adopting the large-caliber reflection-type light guide machine, the infrared ray in the sun focus light is eliminated, the uniformity of the intensity of the focal spot can be realized, the service life of the optical fiber beam can be greatly prolonged, and the position detection reliability of the focus spot can be improved by utilizing the high temperature sensor.
Owner:宋记锋
Automatic dust removal electrical box, outdoor unit and air conditioning unit
ActiveCN105157126BSafety at WorkAvoid enteringLighting and heating apparatusAir conditioning systemsReciprocating motionAir conditioning
Owner:GREE ELECTRIC APPLIANCES INC
Integrated environment regulation and control method
ActiveCN113091155AReduce the temperatureEnsure air safetyLighting and heating apparatusSubstation/switching arrangement cooling/ventilationFresh airProcess engineering
The invention discloses an integrated environment regulation and control method, and belongs to the technical field of substation ventilation methods. An integrated environment regulation and control device is adopted. The method comprises the following steps that 1, when (T-T<outdoor>) is larger than or equal to T<first set value>, and RH<outdoor> is smaller than or equal to RH<first set value>, a fresh air passage is opened; 2, when (T-T<outdoor>) is larger than or equal to T<first set value>, and RH<outdoor> is larger than RH<first set value>, fresh air outside a power distribution room is dehumidified through the fresh air passage; and 3, when (T-T<outdoor>) is smaller than T<first set value>, T is larger than or equal to T, or RH is larger than RH, an indoor air return passage is opened. According to the scheme that the indoor temperature is reduced by replacing air, the working power required by equipment is greatly reduced, and the advantages of energy conservation and high efficiency are achieved.
Owner:ZHEJIANG DUMEI ELECTRIC POWER TECH
A kind of hair removal equipment for brush making
ActiveCN106945428BSafety at WorkConvenience to workPen repairingOther pensEngineeringBilateral symmetry
Owner:HUZHOU SHANLIAN YONGHEFENG PEN HOUSE
Magnetic suspension valve seat device
PendingCN112901844AExtended service lifeReduce shockPlug valvesOperating means/releasing devices for valvesPhysicsEngineering
The invention discloses a magnetic suspension valve seat device which comprises a valve seat body, a mounting groove is formed in the inner side of the valve seat body, a sphere is mounted at the mounting groove, a first step and a second step are arranged on the outer side of the valve seat body, a valve deck is mounted outside the valve seat body, and a magnet is arranged on the first step. A buffering piece is fixed to the other end of the magnet, the other end of the buffering piece is connected with the valve deck, a coil is arranged outside the magnet, a sealing piece is installed in the second step, a sealing piece is fixed to the interior of the side, close to the ball body, of the outer side of the valve seat body, and an actuator is fixedly arranged above the sphere. The device can be turned on and turned off by powering on and powering off the coil, the service life of the device is prolonged, and the device has the advantages of being environmentally friendly, efficient, high in quality and the like.
Owner:OULAM VALVE TECH CO LTD
Magnetic coupling
A magnetic coupling relates to a transmission device, and is simple in process, easy in assembly, firm in fixing of permanent magnets, high in use reliability and capable of preventing the permanent magnets from shedding and from sliding along the surface of a rotor. Two end rings are integrally made at two ends of a sleeve respectively, a plurality of rectangular grooves are uniformly arranged on the outer circumferential surface of each end ring, partitions are axially arranged on the outer side of the sleeve, two ends of the partitions are inserted into the corresponding rectangular grooves of the end rings, a mounting groove is formed among the outer side of the sleeve, each two adjacent partitions and the two end rings, a plurality of outer permanent magnets are inlaid in the mounting grooves, the sleeve inlaid with the outer permanent magnets and the two end rings are placed in a shell together, the two end rings are connected with the shell, the outer edge of the radial cross section of an inner rotor yoke is a polygon, an inner permanent magnet is adhered on each outer side of the inner rotor yoke, the inner rotor yoke adhered with the inner permanent magnets is placed in a casing together, and the casing is placed in the sleeve. The magnetic coupling is used for motors.
Owner:HARBIN INST OF TECH
Gallium nitride power tube driving circuit with overcurrent protection function
PendingCN114301034ASimple structureSafety at WorkEfficient power electronics conversionEmergency protective circuit arrangementsLevel shiftingDropout voltage
The invention discloses a gallium nitride power tube driving circuit with an overcurrent protection function, which comprises a first under-voltage detection module, a low-dropout voltage stabilizing circuit, a second under-voltage detection module, a first level conversion module, an overcurrent detection module, an input module, a logic control module, a second level conversion module and a driving module, the over-current detection module is connected with the logic control module, the logic control module is connected with the second level conversion module, the second level conversion module is connected with the driving module, and current flowing through the gallium nitride power tube generates sampling voltage on the current sampling resistor R1. When a GaN power tube is over-current, the voltage of the PGND is higher than a preset threshold voltage of the over-current detection module, the over-current detection module outputs a high level after over-current is maintained for a certain time, the OUT pin is set to be a low level through the logic control module, and the GaN power tube over-current protection circuit is simple in structure and can provide an over-current protection function of the GaN power tube.
Owner:SUZHOU KAIWEITE SEMICON
A multi-drum retractable rope device
The invention discloses a multi-roller rope withdrawing and releasing device comprising a base. A guide roller bracket is fixed to each side of the base correspondingly, a plurality of rope withdrawing and releasing rollers are mounted at the outer end of each guide roller bracket, a middle connecting frame is connected to the inner ends of the guide roller brackets, a rope releasing rotating shaft is connected to the middles of the two guide roller brackets, a plurality of rope pressing devices are arranged at both ends of the rope releasing rotating shaft, a reel bracket is arranged at each end of the middle connecting frame correspondingly, a rope withdrawing rotating shaft is arranged between the two reel brackets, rope withdrawing reels matched with the rope pressing devices on the side are arranged at both ends of the rope withdrawing rotating shaft, a rope hanging roller component is arranged on each rope withdrawing reel, a limiting collision block is arranged on each rope hanging roller component, a limit switch is arranged on each limiting collision block in a matched manner, and a rope guide device is arranged on each guile roller bracket. The multi-roller rope withdrawing and releasing device has the advantages of reliable and stable working, high safety and long service life.
Owner:SHENXI MACHINERY
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