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Safety JTAG module and method for protecting safety of information inside chip
InactiveCN101620656AReduce security risksImprove data security featuresInternal/peripheral component protectionProcessor registerPassword
The invention relates to a safety JTAG module and a method for protecting security of information inside a chip, wherein the safety JTAG module comprises a nonvolatile medium (206), a loading circuit (205), a security attribute control register (214), a TAP controller (201), two selectors (207 and 211), a switch (203), a password authentication module and a logic processing module; the TAP controller (201) and the two selectors (207 and 211) are connected between a JTAG port (1) and a protected object inside the chip; the switch (203) is switched by the control of a timer (202); the password authentication module is used for authenticating whether a clear-text password input by a user is accordant with a fuzzification password or not; and the logic processing module is used for logically processing an authentication result output by the password authentication module and an indication signal output by the security attribute control register (214) and outputting an enable signal to the two selectors (207 and 211) so as to control whether the JTAG port (1) is allowed to be connected with the protected object inside the chip through the TAP controller (201) or not. The invention ensures the security and the convenience of an SOC chip in testing and debugging processes, thereby protecting the security of data inside the chip.
Owner:SHENZHEN STATE MICRO TECH CO LTD
Single-side coated and integrated backplane for photovoltaic modules
InactiveCN106519276AShort manufacturing cycleSimple processSynthetic resin layered productsCoatingsPolyesterCarbon coating
The invention discloses a single-side coated and integrated backplane for photovoltaic(PV) modules. The backplane is obtained through co-extrusion of a polyester basic layer and a modified polyester thin layer. The surface of the polyester basic layer is coated with a fluoro-carbon resin coating. The polyester basic layer is prepared by mixing 1-10 parts by weight of a functional master batch polyester slice and 1 part by weight of a pure polyester slice. The modified polyester layer comprises a dicarboxylic acid, a diol, a fluorine-containing monomer, titanium dioxide powder, a catalyst, a heat stabilizer, a phosphorus compound, an antioxidant, a UV absorber, a light stabilizer, an antistatic agent and an anti-hydrolysis agent. The fluoro-carbon resin coating is obtained by curing a two-component FEVE fluoro-carbon coating under normal temperature. The fluoro-carbon resin coating comprises a polymer matrix, an aliphatic polyisocyanate curing agent, a solvent, an additive and a filler.
Owner:ZHONGTIAN PHOTOVOLTAIC MATERIALS
Block chain-based digital vein access control system
InactiveCN107331012ARealize intelligent controlImprove security levelIndividual entry/exit registersElectromagnetic lockControl system
The invention discloses a block chain-based digital vein access control system, and belongs to the technical field of security systems. The block chain-based digital vein access control system structurally comprises a block chain database, host control software, a digital vein recognition module, a power module and an electromagnetic lock, wherein the block chain database is used for storing digital vein information of a user; the host control software is a control center of the digital vein access control system; the digital vein recognition module is used for collecting the digital vein information of the user; the power module is used for providing the digital vein access control system with power; the electromagnetic lock is used for controlling opening and closing actions of the access control system. Compared with the prior art, the access control system has the advantages that storage of the digital vein information of the user is carried out by using the block chain database, the risk of a failure of the whole system due to the fact that one node fails or is attacked is avoided and the security level of the access control system is improved.
Owner:JINAN INSPUR HIGH TECH TECH DEV CO LTD
Digital open loop temperature compensation system of optical module laser device
ActiveCN104078841AReduce power consumptionAvoid performance degradationLaser detailsElectromagnetic transmittersOptical ModuleHemt circuits
The invention relates to the field of optical communication, in particular to the laser temperature compensation technology, and discloses a digital open loop temperature compensation system of an optical module laser device. Temperature compensation is carried out on the laser device in an optical module through a digital open loop circuit to guarantee the stable output light power and the stable extinction ratio. Meanwhile, the operating temperature, the bias currents, the backlight currents, the operating voltage and the light collection power value of the digital open loop temperature compensation system are effectively monitored in real time, the power consumption of the optical module is greatly lowered, the risk of performance deterioration and failures of the optical module at high temperature for a long time is avoided, and stable operation of the system is guaranteed. Meanwhile, hardware of the scheme is simple, the cost is lower compared with an integrated dedicated chip scheme, and production is simple and practicable.
Owner:成都新易盛通信技术股份有限公司
Method and system for managing energy in echelon battery pack energy storage station
ActiveCN106803680AImprove operational efficiencyIncreased operating lifeSingle network parallel feeding arrangementsSecondary cells charging/dischargingElectrical batteryMonitoring system
The invention discloses a system for managing energy in an echelon battery pack energy storage station. The system adopts a distributive topology structure and includes an echelon battery module, an energy storage converter and a monitoring system. The monitoring system is set with monitoring cycles each of which includes the following steps when begins: 1. a charge state acquisition unit which is disposed inside the echelon battery module on each branch acquiring the charge state of each echelon battery module, uploading the charge state to the monitoring system through a CAN bus; 2. the monitoring system, based on the charge state of the echelon battery module of each branch and a dynamic power value that is set, calculating the power value that requires real-time controlling of each branch, issuing the power value to a corresponding energy storage converter for performing control, further controlling the real-time power in charging and discharging of each branch. According to the invention, the system ensures that the overal power meets systematic requirements, and the operation efficiency and service lifetime of the system is increased, and the risks of ineffectiveness of a single branch caused by over-charging or over-discharging of a single branch.
Owner:NIO ANHUI HLDG CO LTD
Parallel control method for high-capacity energy accumulation converters of energy accumulation power station
ActiveCN104578125ALarge capacityImprove reliabilityAc network load balancingPower stationElectricity
The invention provides a parallel control method for high-capacity energy accumulation converters of an energy accumulation power station. The parallel control method comprises the steps that first, all electrical equipment in the energy accumulation power station is initialized; second, communication information is sent between PCS units; third, if the quantity of the communication information sent by the PCS units and the quantity of response information received by the PCS units are the same, the PCS units start to conduct grid connection; fourth, one PCS unit is determined to be used as a main machine, and the rest PCS units are slave machines; fifth, the slave machines conduct adjusting according to the output voltage of the main machine, and grid connection begins; sixth, if the slave machines do not complete grid connection within preset time, grid connection is stopped, and grid connection failure signals are sent. Compared with the prior art, according to the parallel control method for the high-capacity energy accumulation converters of the energy accumulation power station, on-line reliable parallel connection of the multiple energy accumulation converters can be achieved, and the capacity of the energy accumulation power station is expanded. The strategy of electrically free main machine seizing of the energy accumulation converters is adopted, the risk of faults caused by manually setting the main machine is avoided, and the reliability of the energy accumulation power station is improved.
Owner:STATE GRID CORP OF CHINA +3
Main management module and standby management module backuping and updating method for blade server
ActiveCN103473152AImprove high fault toleranceIncrease transfer rateRedundant operation error correctionControl powerNetwork address translation
The invention provides a main management module and standby management module backuping and updating method for a blade server. The redundant backup and the firmware update of the main management module and the standby management module can be realized. The redundant backup gives priority to the main management module; when the main management module fails, the standby management module can take over the system monitoring administration authority; once the main management module is recovered, the standby management module releases the control power; and the main management module obtains the administration authority again. According to a firmware update method, a firmware mirror image is transmitted to the standby management module via the network main management module in a mode that the NAT (network address translation) service is started on a blade module to establish an NAT network mapping table, and the requirement on the unified update of the main management module and the standby management module under the big-volume firmware mirror image can be realized. The method is especially suitable for the requirement on the unified update of the main management module and the standby management module under the condition that a user can normally use the server, and meanwhile, the consideration on the hardware cost design by the user can be satisfied by the preemptive redundancy strategy.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
Face recognition access control system based on block chains
InactiveCN108629337AImprove security levelAvoid risk of failureCharacter and pattern recognitionIndividual entry/exit registersElectromagnetic lockMedia access control
The invention discloses a face recognition access control system based on block chains. The face recognition access control system comprises a block chain database, a face identifier, a processor, a controller, an electromagnetic lock and an alarm; wherein the block chain database is used for storing the face images of users with access control authority; the face recognizer is used for collectingthe face image of the door opening person and sending the collected face image to the processor, the processor is used for processing the collected face images and the face images stored in the blockchain database and sending the corresponding result to the controller; and the controller is used for sending a corresponding control instruction to the electromagnetic lock and the alarm according to the processing result. Compared with the prior art, the face recognition access control system has the advantages that the block chain database is used for storing the face information of users, therisk of failure of a whole system due to the fact that one node is cut off or attacked is avoided, and the safety level of an access control system is improved.
Owner:广州益鑫智能科技有限公司
Three-in-one coupling insertion-pull type water surface photovoltaic power generation unit and power generation system thereof
ActiveCN107317544ASolve the problem of non-standard water installationSolve the problem of irregular installationPhotovoltaic supportsWaterborne vesselsMulti functionalityPhotovoltaic power generation
Disclosed are a three-in-one coupling insertion-pull type water surface photovoltaic power generation unit and a power generation system thereof. The photovoltaic power generation unit comprises a passage floating body and a connecting floating body arranged on a side wall of the passage floating body, wherein a power generation element is arranged on the connecting floating body. The system is formed by assembling three-in-one coupling insertion-pull type water surface photovoltaic power generation units vertically and horizontally. Horizontally, the passage floating body is assembled with a passage floating body of another three-in-one coupling insertion-pull type water surface photovoltaic power generation unit, and so on, mounting is completed. Vertically, the connecting floating body is assembled with the passage floating body of another three-in-one coupling insertion-pull type water surface photovoltaic power generation unit, and so on, mounting is completed. Finally, connecting floating bodies of a horizontal row of three-in-one coupling insertion-pull type water surface photovoltaic power generation units are independently fixed with passage floating bodies, so as to complete mounting of the whole power generation system. The unit has the characteristics of simple structure, convenient mounting and multi-functionality. The system assembly has the characteristics of simple structure and convenient mounting.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES
Method for evaluating probability of forest fire fault tripping of power transmission line
InactiveCN105160412AImprove operational safetyImprove the level of wildfire resistanceForecastingFire rescueEngineeringFault model
A method for evaluating probability of forest fire fault tripping of a power transmission line is characterized by taking data with easily obtained macroscopic meteorological conditions, geographical conditions and date as input and adopting a forest fire occurrence probability model, a power transmission line fault model under the condition of forest fire and a forest fire spreading model to predict the probability of forest fire fault tripping of a power transmission line, or calculating the probability of line fault tripping after the occurrence of forest fire, and analyzing the influence degree of peripheral fire source points to the line forest fire fault, so as to achieve evaluation for the probability of forest fire fault tripping of the power transmission line, draw a grade distribution map of forest fire risky areas, make a forest fire fault pre-arranged plan of the power transmission line and disaster prevention and mitigation measures, and evaluate the forest fire occurrence probability of areas which the power transmission line passes through a fuzzy comprehensive evaluation method. The method of the present invention is mainly used for risk evaluation of forest fire fault tripping of a power transmission line and making a forest fire fault pre-arranged plan of the power transmission line and disaster prevention and mitigation measures.
Owner:STATE GRID CORP OF CHINA +1
Warm-season turf establishment method
The invention provides a warm-season turf establishment method. The warm-season turf establishment method is mainly used for establishing a turf against a warm-season turf grass seeding method. According to the warm-season turf establishment method, various conditions required for seed germination of warn-season turf grass and growth of seedlings till the turf is formed can be ensured by controlling fertilizing amount and watering amount, utilizing control temperature, humidity and illumination of an agricultural plastic mulching film and applying a seedling stage film supporting technology. An effective method which can realize large-area application in production practices of garden afforestation, and can not only solve the difficult problems of turf establishment through the warm-season seeding method, but also reduce turf establishment cost is provided by preparing a place before the turf establishment, seeding, controlling the temperature and humidity during the germination stage, curing the seedlings in the film, controlling the temperature of the support film and the like.
Owner:LIAONING UNIVERSITY
Shedding detecting method and system of refrigerating system exhaust temperature sensor
ActiveCN109869955AGuaranteed reliabilityAccurate detection of sheddingRefrigeration safety arrangementGeological measurementsFrequency conversionEngineering
The invention relates to the technical field of refrigerating systems, and provides a shedding detecting method of a refrigerating system exhaust temperature sensor to solve the problem that the precision of exhaust temperature sensor shedding detecting in an existing refrigerating system is not high. The refrigerating system exhaust temperature sensor shedding detecting method includes the following steps that the parameter change rate of a compressor motor and the temperature value of an exhaust temperature sensor are obtained in real time; the temperature value of a machine winding is calculated according to the parameter change rate, and the difference value of the temperature value of the machine winding and the temperature value of the exhaust temperature sensor is calculated; and ifthe difference value of the temperature value of the machine winding and the temperature value of the exhaust temperature sensor is larger than a preset threshold value, an alarming signal that the exhaust temperature sensor of a compressor is shed can be sent. The distance between the inner part of the compressor and an exhaust port, thus it is avoided that the temperature of a heat exchanger coil pipe, the pipeline length between exhaust pipes of the compressor, the environment temperature and the opening of a valve body affect the temperature value in the prior art, thus the shedding detecting of the exhaust temperature sensor is more precise, and the shedding detecting method of the refrigerating system exhaust temperature sensor is suitable for a direct current frequency conversion air conditioner system.
Owner:四川长虹空调有限公司
Intelligent sample collecting device
ActiveCN105752470ARisks Affecting Mass AccuracyHigh security for collection and transferLidsNon-removalbe lids/coversLocking mechanismEngineering
The invention discloses an intelligent sample collecting device which comprises a machine frame. The machine frame is provided with a feed inlet. A rotatable rotating disc mechanism and multiple sample storage barrels used for collecting samples are arranged in a collecting cavity formed by the machine frame. The sample storage barrels are hung on the rotating disc mechanism. Each sample storage barrel is provided with a hinged barrel cover and an induction locking mechanism used for locking the barrel cover. The hinged position of the barrel cover is provided with an elastic part so that the barrel cover can bounce upwards to be opened when not locked. The feed inlet is provided with a liftable weighing mechanism. The weighing mechanism is provided with an induction unlocking assembly matched with the induction locking mechanism. When the rotating disc mechanism drives the sample storage barrels to rotate to the position below the feed inlet, the weighing mechanism raises to lift up the sample storage barrels, so that the induction locking mechanism induces an unlocking signal of the induction unlocking assembly to open the barrel covers for sample connection and weighing operation. The intelligent sample collecting device has the advantages that the structure is simple and compact, the intelligence degree is high, sample collection and transfer safety is high, sample collection quality precision is high, working efficiency is high, and the production cost is low.
Owner:HUNAN SUNDY SCI & TECH DEV
Double-layer titanium aluminum/aluminum silicon composite material as well as preparation method and application thereof
ActiveCN104651663ARealize the combinationInterface integration is goodSemiconductor/solid-state device detailsSolid-state devicesSilicon alloyAlloy substrate
The invention relates to a double-layer titanium aluminum / aluminum silicon composite material as well as a preparation method and application thereof, and belongs to the technical field of preparation of electronic packaging materials. The titanium aluminum / aluminum silicon composite material comprises a titanium aluminum alloy layer, an aluminum silicon alloy layer and a transition layer positioned between the titanium aluminum alloy layer and the aluminum silicon alloy layer. The preparation method comprises the following steps: sintering aluminum powder and titanium powder under high temperature and high pressure to form a titanium aluminum alloy substrate, and then sintering premixed aluminum powder and silicon powder with the sintered and molded titanium aluminum substrate for the second time in a mold under a lower temperature and higher pressure, so as to obtain a titanium aluminum / aluminum silicon electronic packaging material blank with double-layer composite structure; and then annealing by vacuum diffusion, so as to obtain the titanium aluminum / aluminum silicon composite material. The preparation method has the advantages of short process, easiness in control over process parameters and the like; each performance of the prepared titanium aluminum / aluminum silicon composite material is excellent, especially the interface bonding property is attractive, so the material can be used as an electronic packaging material.
Owner:CHANGSHA XUNYANG NEW MATERIAL TECH CO LTD
Shock-insulation supporting base composed of steel board rubber, mild steel and lead and capable of achieving three-stage energy consumption
The invention discloses a shock-insulation supporting base composed of lamination steel board rubber, mild steel and lead and capable of achieving three-stage energy consumption, and relates to a novel shock-insulation device. The shock-insulation supporting base aims to resolve the problem of stability of a traditional shock-insulation supporting base under strong shock, and three-stage energy consumption is used for meeting fortification requirements of multifunctional targets of the shock-insulation supporting base. The shock-insulation supporting base is composed of a lamination steel board rubber body, a mild steel support and a lead damper in an orderly assembling mode, and is simple in structure, convenient to manufacture and good in performance. In the first stage, a common shock-insulation function is achieved, and structure response under small and medium earthquakes is lightened; in the second stage, the mild steel support participates in energy consumption, secondary rigidity of the shock-insulation supporting base is improved, comprehensive energy consumption ability is strong, and response in a large earthquake is lightened; in the third stage, the lead damper participates in work to respond to unpredictable earthquake danger exceeding expectation, plays a role in protecting the shock-insulation supporting base, and avoids unstability damage. The shock-insulation supporting base can effectively improve the energy consumption ability and reliability under unpredictable earthquakes.
Owner:CHINA RAILWAYS CORPORATION +2
Vehicle shock absorber piston rod spraying technology
ActiveCN103147033AImprove bindingGood coating strengthMolten spray coatingWorking environmentPiston rod
The invention relates to a vehicle shock absorber piston rod spraying technology. The vehicle shock absorber piston rod spraying technology comprises the following steps of: coarse grinding, degreasing, surface roughening, non-spraying surface protection, preheating, spraying and fine grinding. When a piston rod is treated according to the spraying technology provided by the invention, the performances such as the binding force, the coating intensity, the coating thickness, the abrasion resistance, the corrosion resistance and the like of a coating of the piston rod are all superior to those of a durionise layer, and the cost performance of the coating is also superior to that of the durionise layer, so that the technology is a precedence technology used for replacing a durionise technology; and particularly, the technology does not pollute the environment, is beneficial to improvement of the working environment and the health and the safety of an operator. The technology has the advantages that production period is short, production efficiency is high, defective rate is low, the treated vehicle shock absorber piston rod has good rust-proof performance, good abrasion resistance and long service life; moreover, automation operation is easily realized, production efficiency is high and the production cost is lowered.
Owner:NANYANG XIJIAN AUTOMOBILE SHOCK ABSORBER
Method for updating deteriorated grassland bluegrass lawn at low cost in north
ActiveCN103931416ASolving the degenerative update puzzleReduce replacement costsHorticultureGrasslandBiology
The invention provides a method for updating a deteriorated grassland bluegrass lawn at low cost in the north. Weed control, pruning height control, lawn partition area and turf block size determination, rooting hastening with grass blocks soaked in pesticide, determination of the number of turf blocks planted in a community per square meter and planting positions, compacting, watering, sand covering, growth regulator application and other technologies are applied, on the basis of the natural rules of plant interspecific competition and the survival of the fittest, zoysia japonica can easily invade the deteriorated grassland bluegrass lawn due to strong creeping stems and the strong growing vigor and competitiveness, other grass seeds can hardly invade the lawn once the population of the zoysia japonica is formed, and therefore the aim of updating the deteriorated grassland bluegrass lawn at low cost is achieved. The effective method can be applied to the production practice of landscaping in a large area, can solve the problem of a deteriorated cool-season lawn, and can lower updating cost.
Owner:浙江知多多网络科技有限公司
Oil bypass device, and engine fitted with such a device
ActiveUS20080083664A1Improve reliabilityAvoid risk of failurePipe heating/coolingLubricant conduit arrangementsPressure riseEngineering
According to the invention, the filter is fixed to the engine block by screwing it to an attached connecting sleeve. The connecting sleeve contains a bypass valve, in the form of a tubular piston sliding in a through-passage and pushed against an intermediate shoulder by a spring. By sliding, the piston opens or closes a radial passage establishing direct communication between the inlet passage and the through-passage of the device. If the filter element of the filter is clogged, the pressure rise in the inlet passage causes the piston to move and the radial passage to open to reduce the pressure rise and ensure a satisfactory flow of oil. This reduces pressure rises upstream of the filter and ensures sufficient lubrication of the engine even in the case of clogging of the filter.
Owner:BONTAZ CENT
Mechanical seal arrangement having sliding surfaces of differing hardness
ActiveCN105074299ASolution to short lifeAvoid risk of failureEngine sealsPump componentsCarbon compositesHardness
The invention relates to a mechanical seal arrangement comprising: a rotating slide ring (2) with a first sliding surface, and a stationary slide ring (3) with a second sliding surface, which delimit a sealing gap (4) between one another, the first and second sealing surfaces having differing hardness. The harder sealing surface (20) has a diamond coating and the softer sealing surface consists of carbon composite material and a mean initial roughness Ra1 (of the diamond coating (20)) is smaller than the mean initial roughness of the sliding surface made of carbon composite material.
Owner:EAGLEBURGMANN GERMANY GMBH &CO KG
A casing pipe pressure control well cementation process
InactiveCN109723402AReduce the risk of casing cementing constructionImprove cementing qualitySealing/packingWellheadWell cementing
The invention discloses a casing pipe pressure control well cementation process, and belongs to the technical field of oil and gas development well cementation. The casing pressure control well cementation process sequentially comprises a casing running stage, a cement injection and displacement stage and a bump pressure and setting waiting stage. In the casing running stage, the cementing and displacing stage and the bumping and waiting stage, the well bottom circulation equivalent density of the narrow safety density window well section is kept between the pore pressure equivalent density and the rupture pressure equivalent density corresponding to the narrow safety density window well section by controlling the wellhead annulus pressure. In the well cementation process, the wellhead annulus pressure is controlled; the well bottom circulation equivalent density corresponding to the narrow safety density window well section is enabled to be between the pore pressure equivalent densityand the rupture pressure equivalent density; it is ensured that a weak pressure-bearing stratum is not pressed to leak while the oil and gas display layer is pressed stably, the casing well cementation construction risk of a narrow safety density window well section is reduced, the well cementation quality is improved, the well integrity is improved, and the development benefits are ensured.
Owner:PETROCHINA CO LTD
Document number generating method and document number generating system
ActiveCN102609330AConsistent response timeGuaranteed processing efficiencyRedundant data error correctionSoftware engineeringSerial code
An embodiment of the invention provides a document number generating method and a document number generating system. The method includes the steps: determining business numbers according to received system instructions; selecting unused serial numbers as sequence numbers from serial numbers corresponding to the business numbers; determining designated information at the tail of document numbers; generating check bits by means of computing according to the business numbers, the sequence numbers and the designated information; and assembling the business numbers, the sequence numbers, the check bits and the designated information according to preset assembly rules to generate the document numbers. By the aid of the data processing method, the document numbers including the designated information can be obtained by means of computing once, response time for generating the needed document numbers is strictly controlled, and system overhead is effectively controlled.
Owner:AGRICULTURAL BANK OF CHINA
Method and system for extracting and recognizing fingerprint of user equipment
InactiveCN105989149AAvoid risk of failureEasy to operateWeb data retrievalMultimedia data browsing/visualisationIp addressClock offset
The invention discloses a method and system for extracting and recognizing a fingerprint of user equipment. According to the method and system disclosed by the present invention, a manner of collecting device CPU clock offset is adopted so as to realize recognition of the current device, and compared with the prior art, a user no longer has to install a plug-in, so as to simplify an operation process, avoid the risk of failure possibility of the control, and improve stability; and the clock offset cannot be modified almost, so compared with the traditional manners relying on mac addresses and other hardware information, the manner adopted in the invention has higher accuracy. At the same time, the method disclosed by the present invention under the condition of no requirements of installing the control, realizes device recognition, and improves user experience; through a great quantity of simulation tests in a long time, historical data of the equipment is analyzed, and by observing changes of history ip addresses of the same device, accuracy is calculated to be about 99%.
Owner:SUNING COM CO LTD
Safety infusion set on basis of bubble point pressure principle
The invention relates to the technical field of medical instruments, in particular to a safety infusion set on the basis of the bubble point pressure principle. The technical scheme includes that a liquid medicine filter medium with the bubble point value ranging from 7.85 to 25kPa is selected according to the bubble point pressure principle, infusion of liquid medicine is stopped automatically according to the characteristics of the liquid medicine filter medium when the liquid medicine in the infusion set drips off, so that air can be prevented from entering an infusion tube and safety is guaranteed. Further, an exhaust tube extending to an inner cavity of a dropper is arranged in the dropper, a filter medium capable of exhausting air but not draining liquid is arranged at the extending end of the exhaust tube, so that automatic exhaust is realized significantly and safely and the high-efficiency and safe air separation effect is realized since the infusion set is combined with the bubble point pressure principle.
Owner:李林风
Nuclear power main control room ventilation air conditioning system
PendingCN106918101AAvoid Common Mode FailuresImprove securityDucting arrangementsMechanical apparatusRadiation monitoringFresh air
The invention relates to a nuclear power main control room ventilation air conditioning system. The system comprises a normal ventilation air conditioning system, an emergent filter ventilation air conditioning system and a served area; the emergent filter ventilation air conditioning system is in control connection with a radiation monitoring system; the normal ventilation air conditioning system comprises two sets of air conditioner units connected in parallel; the air conditioner units are in entity separation; intake ends of the air conditioner units are both connected with a normal fresh air port, and exhaust ends are both connected with the served area; an intake end of the emergent filter ventilation air conditioning system is connected with an emergent fresh air port, and an exhaust end is connected with intake ends of the air conditioner units; an intake end pipeline of the normal ventilation air conditioning system and an intake end pipeline of the emergent filter ventilation air conditioning system are both provided with electric isolation valves; and fireproof valves are respectively arranged on intake end pipelines and exhaust end pipelines of the two air conditioner units. The system satisfies the residing requirements of a main control room under normal working conditions and accident working conditions, is more reasonable in structural design, and improves the operation safety and reliability of a nuclear power station.
Owner:CHINA NUCLEAR POWER ENG CO LTD
Rapid-temperature-controlled transfusion pump
ActiveCN104162214AAvoid risk of failureFast and controllable blood transfusion speedFlow monitorsTemperature controlWhole blood product
The invention relates to a rapid-temperature-controlled transfusion pump. The rapid-temperature-controlled transfusion pump is characterized in that a dripping chamber (1) is connected with an transfusion pump body (2) through an infusion pipe (9.1), the transfusion pump body (2) is connected with a heating inductor (3) through an infusion pipe (9.2), the heating inductor (3) is connected with a gas collecting device (4) through an infusion pipe (9.3), the middle of the infusion pipe (9.3) is provided with a temperature monitoring device (5), the infusion pipe below the gas collecting device (4) is provided with branches which are connected through a ping-pang safe stop valve (8), one branch is connected with an inner circulation loop (10), the other branch is connected with a patient loop (11), a bubble monitoring device (6) is installed between the infusion pipe below the gas collecting device (4) and the inner circulation loop (10), the patient loop (11) is provided with a pressure monitor (7), and a liquid medicine inflow pipe recognizing device (12) and an infrared temperature measuring point (13) are arranged above the dripping chamber (1). By means of the rapid-temperature-controlled transfusion pump, the real-time blood temperature ranging from 0 DEG C to 4 DEG C is raised to the temperature ranging from 36 DEG C and 40 DEG C, and fast infusion with the speed of 1000 ml / min is achieved; by means of a paramagnetic body, it can be ensured that the temperature of a heating body for transfusion does not exceed 42 DEG C, and the safety of blood products is guaranteed, necessary protection is achieved for the life safety of a patient; the rapid-temperature-controlled transfusion pump has the one-key emergency infusion function to meet the first-aid need.
Owner:XIAN LIBANG MEDICAL ELECTRONICS
Waste heat utilization method for flue-gas acid making process
The invention discloses a waste heat utilization method for a flue-gas acid making process. Half of SO2 flue gas is mixed with air, the mixture is heated by a first heat exchanger and a fore heat exchanger and then enters a fore bed layer of a sulfur dioxide converter, exit gas is subjected to heat exchange with the fore heat exchanger and then is mixed with the other half of SO2 flue gas, and then, the mixture enters a first-segment bed layer; exit gas of the first-segment bed layer is subjected to heat exchange with a first steam superheater and then enters a second-segment bed layer; exit gas of the second-segment bed layer is subjected to heat exchange with a third heat exchanger and then enters a third-segment bed layer; exit gas of the third-segment bed layer is subjected to heat exchange with a second steam superheater, then, one part of the exit gas is subjected to heat exchange with the first heat exchanger, and the other part of the exit gas is subjected to heat exchange with a second heat exchanger and then enters a high-temperature absorption tower; exit gas of the tower is heated by a fourth heat exchanger and the third heat exchanger and then enters a fourth-segment bed layer; exit gas of the fourth-segment bed layer is subjected to heat exchange with a third steam superheater and the fourth heat exchanger and then enters a final absorption tower. According to the method, the process adaptability is extensive, the operation is convenient, the running is reliable, and the waste heat utilization ratio is high.
Owner:CHIFENG YUNTONG NONFERROUS METALS
Weather service system for automatic navigation and method
InactiveCN109186628AAvoid the risk of sensor failureImprove securityInstruments for road network navigationClient-sideService system
The invention relates to a weather service system for automatic navigation and a method. The system comprises an automatic driving client side, a weather service side and a navigation service side, wherein the automatic driving client side is used for uploading GPS positioning data, target point information and key index thresholds of a vehicle sensor to the navigation service side; the weather service side is used for collecting element weather grid data in real time from a weather value mode system, performing fusion calculation on the element weather grid data to acquire automatic driving weather grid data; the navigation service side is used for excluding roads which are not suitable for going through in a road network based on the road network, the GPS positioning data, the target point information, the key index thresholds of the vehicle sensor and the automatic driving weather grid data, and planning the driving path according to the road network after the roads which are not suitable for going through are excluded. The weather service system can realize automatic and efficient path planning by combining with the weather situation and vehicle situation, and well combines with the automatic driving technology.
Owner:华云信息技术工程有限公司
Integrated power driving and control system for electric vehicle
PendingCN108177514AReduce in quantityLess materialSpeed controllerElectric propulsion mountingControl systemReduction drive
The invention provides an integrated power driving and control system for an electric vehicle. The integrated power driving and control system for the electric vehicle comprises a driving motor. The driving motor includes a common seat, an integrated shaft for the motor and a speed reducer, a stator, a rotor, a first-stage driven gear, a second-stage driving gear shaft, a second-stage driven gearand a differential mechanism. The stator is arranged on the common seat, and the rotor is arranged on the stator. The integrated shaft for the motor and the speed reducer is connected with the rotor.The integrated shaft for the motor and the speed reducer is connected with a first-stage driving gear. The first-stage driving gear is meshed with the first-stage driven gear. The integrated power driving and control system for the electric vehicle has the beneficial effect that the common seat is used for replacing a traditional seat, a front cover and a large box, the integrated shaft for the motor and the speed reducer is adopted, the connection structure of a spline is avoided, the spline does not lose efficacy in the operation of high speed impact and large loads, series parts are reduced, the processing procedure of parts is reduced, the accumulative error after the assembly is small, the quality of a product can be significantly increased, and the cost is reduced.
Owner:深圳市大地和电气股份有限公司
Regeneration treatment method and device for black liquor of papermaking
InactiveCN101343122AIncrease the concentration monitoring stepReduce pollutionWater/sewage treatment bu osmosis/dialysisMultistage water/sewage treatmentProduction lineHollow fibre membrane
Disclosed is a regeneration treatment method of paper-making black liquor as well as an apparatus thereof, and the method comprises the steps that: firstly, the primary solid-liquid separation of mixture to a paper-making black liquor is implemented by adopting a belt filter press; secondly, the separated liquid enters a hollow-fiber membrane ultra-filtration separator through a retainer, and a hollow-fiber membrane adopting the chip type packaging is used to pump the solution by the negative pressure mode; thirdly, the separated filtrate is directly pumped into a reverse osmosis membrane system through a separating pump for concentrating a caustic soda solution; fourthly, the caustic soda solution is drained to a clear liquid storage tank after being concentrated by the reverse osmosis membrane, and the lye in the tank is tested to have the appropriate caustic soda concentration and can be directly pumped to the paper-making process for recycling; and fifthly, when the tested caustic soda has insufficient effective concentration, the lye is pumped to a causticization tank for causticizing treatment and then for recycling. The apparatus mainly comprises: a black liquor pond communicated with a paper-making production line, and the belt filter press used for the solid-liquid separation of lye in the black liquor pond; the hollow-fiber membrane ultra-filtration separator connected behind the belt filter press; and the clear liquid storage tank connected behind the reverse osmosis membrane which is connected behind the ultra-filtration separator, and the storage tank is connected with the causticization tank or directly connected with a lye scheduling pipeline as required.
Owner:贾向东
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