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Abnormal/fault positioning detection method based on binomial tree model
ActiveCN103491651AAchieve coverageSolve real problemsNetwork topologiesPipeline systemsSystems designData stream
The invention discloses an abnormal / fault positioning detection method based on a binomial tree model. The method comprises the steps of firstly, converting the physical layout of an industrial pipe network into the binomial tree structural model, and storing the detected data into corresponding nodes of a binomial tree; secondly, according to the character of the binomial tree and the relevance between information of the detection nodes, and utilizing the flow conservation property of the data flow of the industrial pipe network for achieving computation of the data flow of nodes of sensors not to be deployed; thirdly, according to the relation between the actual measuring value of the deployed sensors of the detection nodes of the industrial pipe network and the computation value, analyzing the operation condition of the industry, and judging the abnormal / fault types; finally, utilizing the structure characteristics of the binomial tree model for analyzing the abnormal / fault positions of the industrial pipe network and giving an alarm. According to the method, the design is simple, the cost is low, abnormal / fault detection by a traditional artificial tour gauging method is broken through, and the real-time detection on the working condition of the industrial pipe network in a real time mode under the limiting situations of the detection nodes is achieved.
Owner:HOHAI UNIV
Fire-fighting early-warning monitoring and intelligent management system based on internet
InactiveCN101998166AImprove reliabilityReduce false alarm rateTelevision conference systemsRegistering/indicating working of machinesVideo monitoringArea network
The invention relates to a fire-fighting early-warning monitoring and intelligent management system based on an internet. The system integrates functions of eight kinds of software, comprising telephone networking early-warning software, wire video monitoring early-warning software, wireless video monitoring early-warning software, mobile video monitoring early-warning software, satellite video monitoring early-warning software, video on demand software, video session software, live video software, and the like, and the functions can be used independently or integratedly by users. The system can perform large-area networking management on fire alarm systems in buildings, and can realize effective monitoring and quick alarm. The system guarantees the normal operation of the fire alarm systems and fire safety facilities, improves the reliability of the fire alarm systems, and reduces the rate of false alarm. Moreover, through the equipment operating data and alarm information of the fire early-warning monitoring intelligent alarm system based on the internet, the developing process of intelligence and networking of city fire management is accelerated, and thus, the integral technology level and the comprehensive capability of fire prevention and reduction are enhanced.
Owner:北京中海锦安高科技有限公司
Overhauling platform of breaker
The invention relates to an overhauling platform of a breaker. The platform comprises a transportation vehicle frame, a bearing guide rail, an elevating system and a brake structure. The transportation vehicle frame has a frame-shaped structure and one side of the transportation vehicle frame is opened; and steering wheels are respectively arranged at four corners of the bottom of the transportation vehicle frame; besides, the bearing guide rail includes two fixed bases are symmetrically and fixedly connected on the top surface of the transportation vehicle frame; each of the fixed base surface is provided with a guide groove and a plurality of pulleys are arranged in each of the guide groove in a line; and one end of each of the fixed base is provided with a guide part. According to the invention, a present condition that three overhauling tools are utilized to complete transportation task is changed; an intermediate link during the operation is simplified; and resources are saved; and an objective that a breaker is taken out from a working position and is dropped at an overhauling placing position or operation in a reversed order is realized is achieved only by one overhauling tool.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
Vehicle wireless key detection system and vehicle
InactiveCN107627974AReduce the number of antennasRapid positioningElectric/fluid circuitEngineeringAuthorization
The invention relates to a vehicle wireless key detection system and a vehicle. The system comprises a low-frequency emission antenna arranged on a vehicle to send a low-frequency wireless signal covering the whole vehicle and a vehicle key including a key-free system detection module, a key low-frequency receiving device, a key high-frequency emission device and a key controller, a vehicle high-frequency receiving module and a control module. The key-free system detection system module can detect whether the vehicle key is in a coverage range of the low-frequency emission antenna; the key controller is configured in a way that when the vehicle key is detected to be in the coverage range of the low-frequency emission antenna, the key low-frequency receiving device is started to receive thelow-frequency wireless signal, and the key high-frequency emission device is started to send a high-frequency wireless signal at least comprising an authorization signal, a function signal and a low-frequency wireless signal RSSI strength signal; the vehicle high-frequency receiving module and the control module are arranged on the vehicle; the vehicle high-frequency receiving module receives thehigh-frequency wireless signal; and the control module authorize the authorization signal and judges according to the low-frequency wireless signal RSSI strength signal.
Owner:SAIC GENERAL MOTORS +1
Mental health self-help device
InactiveCN101901305ACreate Mental Health AwarenessImprove mental healthMedical simulationHealth-index calculationMental Health ActEngineering
The invention relates to a mental health self-help device, which comprises a main machine, a fully enclosed shell and a movable booth, wherein the main machine is connected with a full-touch display screen; the outside cover of the main machine is provided with the fully closed shell; the upper part of the fully closed shell is provided with three anti-peeping baffle plates which are connected in turn; the fully closed shell is arranged in the mobile booth; and wheels are arranged at the bottom of the mobile booth. The device has the advantages that: the pertinency is high and the range of application people is wide; the use is quick and convenient; factors influencing measurement accuracy is limited; learning, testing and evaluating functions are provided for users so that the users can realize effective self help, solve practical problems, improve mental problem handling ability and level and make self adjustment in time; and the cost is low and the popularization is easy.
Owner:俞国良
Screw type disassembling tool
The invention provides a screw type disassembling tool which is characterized by comprising a body supporting pressing cap, a tappet lead screw and an adjusting rod. An external thread is arranged at one end of the body supporting pressing cap, wherein the external thread can be connected with an internal thread of a valve box pressing cap hole in a plunger pump fluid end assembly, the other end of the body supporting pressing cap is fixedly connected with a retaining nut, the retaining nut is in threaded connection with the tappet lead screw, a loop is arranged in the body supporting pressing cap, a supporting sleeve and end face bearings are arranged in the loop, wherein the end face bearings are located at the two ends of the supporting sleeve, one end of the tappet lead screw is arranged in the supporting sleeve in a sliding mode, an adjusting handle is arranged on the outer side of the other end of the tappet lead screw, the adjusting rod is arranged in a center hole of the tappet lead screw, one end of the adjusting rod is connected with a pop-rivet, and the pop-rivet is in threaded connection with the loop. Compared with the prior art, the screw type disassembling tool has the advantages that the structure is simple, the problem that a plunger and a gland are difficultly disassembled under practical situations is completely solved, efficiency for disassembling the plunger and the gland on a scene is improved, and replacement time is saved.
Owner:SHANGHAI QINGHE MACHINERY
Portal service realization method based on multiple service set identifiers (SSID) and portal service realization system based on multiple SSID
InactiveCN106559788ASolve real problemsMeet needsSecurity arrangementThe InternetUniform resource locator
The present invention provides a portal service realization method based on multiple SSID and a portal service realization system based on the multiple SSID, wherein the method comprises the steps of S1 correlating any one SSID in a wireless local area network; S2 obtaining a corresponding resource locator address from a wireless access point (AP) according to the connected SSID; S3 sending an internet surfing request to a corresponding Portal server according to the obtained resource locator address; S4 receiving and displaying a Portal page issued by the Portal server, and inputting the user information in the Portal page and then sending an authentication request, thereby realizing the Portal service access. When a terminal accesses one SSID in the local area network, the corresponding internet surfing request is intercepted and is redirected to a Portal URL corresponding to the SSID, so that users finish the authentication according to the prompt of the corresponding Portal page, and accordingly, a practical problem of correlating different SSID with different Portal services is solved, the portal service realization is simple and convenient, and the demands of various wireless network operators are satisfied.
Owner:PHICOMM (SHANGHAI) CO LTD
Construction method of direct-drive permanent magnet synchronous wind turbine generator model
ActiveCN105808810ASolve real problemsSpecial data processing applicationsSynchronous motorElectric power system
The invention provides a construction method of a direct-drive permanent magnet synchronous wind turbine generator model. The construction method comprises the following steps: 1: converting the standard parameter of a permanent magnet synchronous motor into an actual value parameter with a SI (System International) unit system; 2: converting the parameter of an electrically excited synchronous motor and the parameter of the permanent magnet synchronous motor; 3: carrying out standardization on the parameter of a new electrically excited synchronous motor; 4: establishing a constant exciting current controller model by simulation software, and calculating the initial reference value of exciting current; 5: constructing an equivalent model of the permanent magnet synchronous motor; and 6: constructing a permanent magnet wind turbine generator model. Compared with the prior art, the construction method of the direct-drive permanent magnet synchronous wind turbine generator model adopts parts of traditional power system business software which is lack of the permanent magnet motor model in a model base to establish the permanent magnet synchronous motor model or a relevant system which comprises the permanent magnet synchronous motor, and realistic difficult problems brought by the deficiency of the permanent magnet synchronous motor model are solved.
Owner:CHINA ELECTRIC POWER RES INST +3
Double-sleeper tamping device with limits conforming to sleeper paving interval standard
InactiveCN105421169AReduce leakageSingle structureBallastwayManufacturing cost reductionVehicle frame
The invention relates to a double-sleeper tamping device which is used for tamping railway ballast beds and provided with limits conforming to a sleeper paving interval standard. The technical basis of the double-sleeper tamping device is the double-sleeper tamping device of PLASSER&THEURER company of Austria (details are seen in the first segment of the third chapter of a book called Levelling and Dialling Ballast Tamping Vehicle which is published by China Railway Publishing House and belongs to railway worker on-the-job training materials compile for universal use and of which international standard book number is ISBN 7-113-02542-0).The double-sleeper tamping device disclosed by the invention has the technical key points that a rectifying and reforming scheme is put forward for solving problems existing in the original design, and an outer tamping arm is limited to swing in limits determined by the sleeper paving interval standard, so that multiple double-sleeper tamping devices can be sequentially mounted on a tamping vehicle frame. The invention aims to realize the purposes that the technical properties of the double-sleeper tamping device are improved, the manufacturing cost is reduced, and the double-sleeper tamping device becomes alternate components of like products and becomes mating components of tamping vehicles with higher working efficiency researched and developed by complete machine manufacturers.
Owner:肖玉清 +2
Soil conditioner based on secondary use of chemical phosphorus tailings and preparation method of soil conditioner
InactiveCN105950156ARealize secondary useImprove the surrounding environmentAgriculture tools and machinesOrganic fertilisersAlkali soilResource utilization
The invention discloses a soil conditioner based on secondary use of chemical phosphorus tailings and a preparation method of the soil conditioner. The soil conditioner is prepared from the following components in parts by mass: 30 to 70 parts of biological active carbon, 20 to 30 parts of weathered coal, 30 to 60 parts of the chemical phosphorus tailings and 5 to 10 parts of kaoline. The chemical phosphorus tailings consist of the following materials in percentage by mass: 35 to 45 percent of calcium oxide, 50 to 60 percent of sulfur trioxide, 2 to 6 percent of silicon dioxide, 0.1 to 0.3 percent of aluminum oxide, 0.1 to 0.3 percent of ferric oxide and 0.01 to 0.03 percent of magnesium oxide. A saline-alkali soil conditioner which serves as an effective component is added into the chemical phosphorus tailings to realize acid-alkali neutralization, so that on one hand, secondary use of wastes is realized, and on the other hand, the environment around a factory can be gradually improved; meanwhile, the added biological active carbon is a product obtained by recycling agricultural and forestry wastes; compared with the conventional modes such as direct combustion and biological returning to the field, the mode of converting straws of agricultural and forestry crops into the biological active carbon has the advantages that the resource utilization rate can be effectively increased, and no pollution to the environment can be caused.
Owner:江苏省有色金属华东地质勘查局地球化学勘查与海洋地质调查研究院
Personalized recommendation method for remote sensing satellite data
PendingCN114491237ASolve real problemsTransform data interaction mechanismDigital data information retrievalSemantic analysisResource poolEngineering
The invention belongs to a recommendation method, and particularly relates to a remote sensing satellite data personalized recommendation method. The method comprises the following steps: firstly, obtaining satellite description information, user information and priori knowledge between user industries and data types by constructing a satellite resource pool and an expert knowledge base; then, according to the user information and the recent behavior data of the user, sorting the remote sensing satellite data by adopting a comprehensive recommendation algorithm to obtain a recommended data list; and finally, recommending the satellite data meeting the requirements of the user or being interested by the user to the user. The remote sensing satellite data recommendation system has the remarkable effects that (1) by utilizing the remote sensing satellite data recommendation system, a user does not need to provide clear input; and (2) by analyzing historical behaviors or working fields of the user, data capable of meeting requirements and interests are actively recommended to the user, continuous and personalized services are provided, a data interaction mechanism is converted, and the problem of reliability of remote sensing satellite data services is solved.
Owner:AEROSPACE INFORMATION RES INST CAS
Porcelain granule sand granulator
The invention relates to a ceramsite sand pelletizer, which is an mechanical equipment making the ceramsite sand, overcomes the disadvantages of the prior art, and is structurally characterized in that a granulating drum is supported and fixed by a support trolley wheel; a drum sieve is arranged within the granulating drum and fixed by a support outside the granulating drum; a shielding can is fixed outside the drum sieve; a grading board is arranged under the shielding can; a hopper is arranged on the high end of the drum sieve; a shoveling plate is soldered within the granulating drum on the same end; the fore part of a vibrator feeder stretches into the granulating drum; the rear part of the vibrator feeder is connected with a raw material stock bin; a water sprayer stretches into the granulating drum; the rear part of the water sprayer is fixed on a bracket and connected with a water network; a pulverizer is fixed on the bracket; the working portion of the pulverizer stretches into the top of the high-end in the granulating drum; the ceramsite sand pelletizer has the advantages of shortened granulating process, small equipment quantity and floor area, stable product quality and good identity, thereby being relatively the advanced ceramsite pelletizing equipment.
Owner:毛训亮
Total price automatic calculator of dining room selling dishes
InactiveCN105631780ASolve real problemsData processing applicationsDigital computer detailsDisplay deviceEngineering
A total price automatic calculator of dining room selling dishes provided by the invention comprises a pedestal, a signal line, a single-chip microcomputer, a display and an induction piece. The pedestal is in a groove shape, the groove is provided with a weight sensor and a RFID sensor, parts are connected through the signal line; the display is provided with a buzzer and an indication lamp, and the induction piece corresponds to the display and is connected with the RFID inductor through induction signals; and when the single-chip microcomputer detects the induction signals of the pedestal and the reduced weight, the single-chip microcomputer sends corresponding dish prices to the display, the buzzer and the indication lamp emit prompts, and the dish prices are accumulated until the withholding is successful and the display is automatically resetted. The induction piece is pasted at the bottom of a spoon at usage, the plastic dishes containing vegetables to be sold are disposed on the pedestal, and the prices of the vegetables to be sold are set in advance; the spoon is used for fetching the vegetables, the induction piece is able to close to the RFID inductor and the weight of the plastic dishes may be reduced, the single-chip microcomputer detects the induction piece signals and the weight reducing signals, and the prices of the vegetables are sent to the corresponding display; and the assigned device emits a prompt, the prices of the vegetables are accumulated until the withholding is successful, and the display is automatically resetted.
Owner:JIANGNAN UNIV
Inclined target detection method and device based on yolv3 algorithm, and storage medium
PendingCN111462235ARealize real-time monitoringSolve real problemsImage analysisNeural architecturesAlgorithmOptimal weight
The invention provides an inclined target detection method and device based on a yolv3 algorithm and a storage medium, and the method comprises the following steps: obtaining a picture containing a detection target, and respectively generating a training set A and a verification set B; labeling the detection targets in the training set A and the verification set B one by one by using rectangular frames at any angle; training an improved yolov3 algorithm by using the training set A, wherein the improved yolov3 algorithm is an algorithm obtained by improving an anger frame, IOU calculation and frame regression on the basis of an original yolov3 algorithm so as to adapt to inclined target detection; then selecting a weight model with the best effect and the best generalization ability throughthe verification set B; and transplanting the improved yolo v3 algorithm to the NVIDIA Jetson TX2, and loading the trained optimal weight to carry out real-time detection on the target in the picture. According to the invention, common vertical target detection can be processed, and detection of an inclined target can also be processed.
Owner:武汉卓目科技有限公司 +1
Cloud picture distribution type video classification method
InactiveCN108804598AFast operationSolve the classification methodSpecial data processing applicationsVideo retrievalClassification methods
In a cloud picture distribution type video classification method, cloud picture distribution type video classification is performed by use of multiple interdisciplinary algorithms, the defect that classification which is truly completely based on a video content cannot be performed for video classification at the present stage is compensated and the shortcoming of insufficient efficient rapid operation in various video classification algorithms is overcome. A key word cluster storage based on image mode recognition and speech recognition is established by use of cloud picture distribution fordimension-reduction classification. While possessing efficient and rapid classification, the classification based on the video content is truly performed, and the method can be used for establishing amore comprehensive video retrieval work bank based on the practical video content.
Owner:王妃
Water evaporation cooling device
InactiveCN101377337AEasy to lower temperatureActiveLighting and heating apparatusAir conditioning systemsEvaporationEngineering
The invention discloses a water evaporating cooling device, which applies the principles of human bionics to imitate human sweat secretion. The device is a bionic cooing device, which uses no fuel, causes no environmental pollution, and has no impact on the environment temperature. The device is capable of cooling the surface of any physical structure on the earth's surface, and is also applicable to the technical fields of industrial wastewater treatment, and the like. The device is provided with a water-proof physical structure 20, the outer surface 21 of which is covered with an evaporation layer 1 with hydroscopic property; tap water 43 with the flow regulated by a switch 46 overflows through an outlet 45 and is evenly distributed in the evaporation layer 1; in the water evaporation 16 process and water distribution 17 process, water molecules 15 in the evaporation layer 1 continuously distributes the heat absorbed by an evaporation surface 5 and a lamination baffle surface 2 into the environment 6; the heat in the physical structure 20 and the physical structure interior 19 is continuously distributed into the environment 6 through a physical structure exterior surface 21, the lamination baffle surface 2, the evaporation layer 1 and evaporation surface 5, thus reducing the physical structure interior temperature 18 to below the environment temperature 19 and achieving the purpose of bionic cooling.
Owner:余蜀翔
Sustained-release preparation containing piracetam
InactiveCN111346066ASolve real problemsGood curative effectOrganic active ingredientsNervous disorderBlood concentrationCombinatorial chemistry
The invention relates to a sustained-release preparation containing piracetam or medicinal derivatives thereof. The sustained-release preparation can achieve a slow drug release effect after being given an effective dose in a form of the sustained-release preparation. The invention further relates to a preparation method of the sustained-release preparation containing the piracetam or the medicinal derivatives thereof. The sustained-release preparation containing the piracetam or the medicinal derivatives thereof has the advantages that stable blood concentration can be maintained for a long period of time, and the sustained-release preparation is convenient to take, good in patient compliance, few in adverse reactions and suitable for large-scale popularization and application.
Owner:乐普药业(北京)有限责任公司
Grinding machine product remote interaction and operation and maintenance system based on AR technology
InactiveCN113205608ASolve real problemsImprove experienceCo-operative working arrangementsAnimationModelSimProcess engineering
The invention discloses a grinding machine product remote interaction and operation and maintenance system based on the AR technology. The grinding machine product remote interaction and operation and maintenance system comprises a data collection module, a component division module, a modeling rendering and editing module, a remote interaction and operation and maintenance module and a terminal display module. According to the grinding machine product remote interaction and operation and maintenance system based on the AR technology, the after-sales service labor cost of equipment manufacturing enterprises can be reduced, customers are helped to know the composition, installation debugging, operation steps and maintenance methods of products through immersive interaction, the interaction ability between people and the environment is enhanced through the augmented reality technology, the experience and immersion of the user are enhanced, high-quality after-sales service is realized, and a guarantee is provided for benefit maximization.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Glass grinder automatic feeding and discharging device with continuous rapid compatibility
ActiveCN110270926AEfficiencySimple structureGrinding machinesGrinding feedersMechanical equipmentAutomation
The invention discloses a glass grinder automatic feeding and discharging device with continuous rapid compatibility, and relates to the technical field of mechanical equipment. The device comprises a workbench, a feeding device and a discharging device. The feeding device and the discharging device are arranged on a rack on one side of the workbench. The feeding device comprises a first horizontal lead screw, a grabbing device is mounted on the first horizontal lead screw, a feeding conveying belt is arranged below the first horizontal lead screw, a first rotary table is arranged on one side of the feeding conveying belt, a material box is arranged on the first rotary box in a surrounding manner, and a first vertical lead screw is arranged at the bottom of the first rotary table. A second horizontal lead screw is arranged above the end, away from the first horizontal lead screw, of the feeding conveying belt. The discharging device and the feeding device have the same structures. Multiple discharging frames are arranged below the end of the second horizontal lead screw in a surrounding manner, and the discharging frames are located on the workbench. The glass grinder automatic feeding and discharging device with continuous rapid compatibility is good in compatibility, high in automation degree and free of spare takts during work.
Owner:SHANGHAI UNIV
Transmission device of regenerated cellulose film forming machine
InactiveCN112117862ASatisfy the running speedSolve real problemsMechanical energy handlingStructural associationFrequency changerPolymer science
The invention provides a transmission device for a regenerated cellulose film forming machine, which is characterized in that the side end of a paper guide roller with bearing seats at two ends is intransmission connection with a motor with a speed changer through a coupling, and the motor is connected with a frequency converter through a circuit. The transmission motor is connected through the frequency converter, and the operation speed can be adjusted through the frequency converter during use, so that the process speed change of the paper guide roller in production can be met.
Owner:HUBEI GOLDEN RING NEW MATERIALS TECH LTD
Seaborne boundary condition simulation method for FLNG device liquidation process
ActiveCN107463754AEffective assessmentReduce computing timeDesign optimisation/simulationSpecial data processing applicationsProcess dynamicsProcess systems
The invention relates to a seaborne boundary condition simulation method for an FLNG device liquidation process. The method is characterized by comprising the following steps of: (1) establishing a three-dimensional control volume unit, working mediums of which flow in an FLNG liquidation process system, under a sea condition, and carrying out analysis to obtain a momentum equation of working medium flow directions; (2) obtaining a three-dimensional motion equation of a hull or a platform on the basis of sea condition basic data of an actual operation sea area; (3) carrying out calculation to obtain a translational motion equation and an angular motion equation of working medium gravity centers; (4) establishing a one-dimensional fluid flow equation for representing flow, in the FLNG liquidation process system, of the working mediums under the actual sea condition; and (5) calculating sea condition boundary condition parameters according to the one-dimensional fluid flow equation, and loading the sea condition boundary condition parameters into a FLNG device liquidation process dynamic model so as to realize application of actual sea condition environment to FLNG device liquidation process. The method can be widely used for improving the simulation facticity and emergency working condition prediction correctness of the FLNG device liquidation process.
Owner:CHINA NAT OFFSHORE OIL CORP +1
A Cooperative Control Method for Tram Intersections Considering the Stopping Time of Stations
ActiveCN107351866BSolve real problemsReduce the impactRailway traffic control systemsResearch ObjectStop time
The invention provides a tramcar crossing cooperative control method considering a platform stopping time. A four-phase level crossing is taken as a research object, tramcars all adopt a walking mode that the tramcars are switched from the middle of a road to the middle of another road, the different distributing positions, relative to the level crossing, of the platform are taken as a classification standard, a line cooperative passing strategy is provided for the tramcars by adopting a mode which combines tramcar speed adjusting, platform stopping time adjusting and a single road intersection control strategy, and the parking probability of the tramcars at level crossings is reduced as much as possible. According to the tramcar crossing cooperative control method considering the platform stopping time, in consideration of the actual running states of the tramcars, and the tramcars are relatively prior to social vehicles in the running process; and the running efficiency of the tramcars in the whole line can be improved, the mutual conflict between the tramcars and the social vehicles is avoided, and further green development of urban public transportation is promoted.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY
A screw-type disassembly tool
The invention provides a screw type disassembling tool which is characterized by comprising a body supporting pressing cap, a tappet lead screw and an adjusting rod. An external thread is arranged at one end of the body supporting pressing cap, wherein the external thread can be connected with an internal thread of a valve box pressing cap hole in a plunger pump fluid end assembly, the other end of the body supporting pressing cap is fixedly connected with a retaining nut, the retaining nut is in threaded connection with the tappet lead screw, a loop is arranged in the body supporting pressing cap, a supporting sleeve and end face bearings are arranged in the loop, wherein the end face bearings are located at the two ends of the supporting sleeve, one end of the tappet lead screw is arranged in the supporting sleeve in a sliding mode, an adjusting handle is arranged on the outer side of the other end of the tappet lead screw, the adjusting rod is arranged in a center hole of the tappet lead screw, one end of the adjusting rod is connected with a pop-rivet, and the pop-rivet is in threaded connection with the loop. Compared with the prior art, the screw type disassembling tool has the advantages that the structure is simple, the problem that a plunger and a gland are difficultly disassembled under practical situations is completely solved, efficiency for disassembling the plunger and the gland on a scene is improved, and replacement time is saved.
Owner:SHANGHAI QINGHE MACHINERY
Olefin catalytic cracking reaction system and method
ActiveCN105272799ADoes not affect operationSolve real problemsHydrocarbon by hydrocarbon crackingHydrogenation reactionEvaporation
The invention discloses an olefin catalytic cracking reaction system and method. The system includes an expansion machine unit; the expansion machine unit includes an expansion machine; a pre-hydrogenation reactor outlet pipeline is divided into two branches, one branch is connected with a pre-hydrogenation circulation pump and then is connected with a pre-hydrogenation cooler, and the other branch is connected with a pre-hydrogenation feeding and discharging heat exchanger and then is connected with a catalytic cracking feeding vaporization tank; the top of the catalytic cracking feeding vaporization tank is connected with the expansion machine, and an outlet of the expansion machine is successively connected with the catalytic cracking reaction feeding and discharging heat exchanger and a feeding heater and then is connected with a catalytic cracking reactor. The method comprises that a pre-hydrogenation reaction discharging material is directly heated and evaporated without reduction of a pressure, and after evaporation, the pressure is reduced to a catalytic cracking reaction required pressure via the expansion machine. The method of firstly heating evaporation of the pre-hydrogenation reaction discharging material and then taking the evaporated material as an expansion machine working medium for driving a machine pump is used for replacing a conventional flow method of firstly reducing the pressure and then evaporating, the pressure potential of the pre-hydrogenation reaction discharging material is used for applying work, and thus the purposes of reducing energy consumption and saving operating cost are achieved.
Owner:SINOPEC ENG +1
Fire-fighting early-warning monitoring and intelligent management system based on internet
InactiveCN101998166BNetworkingReduce hidden danger rateTelevision conference systemsRegistering/indicating working of machinesVideo monitoringArea network
The invention relates to a fire-fighting early-warning monitoring and intelligent management system based on an internet. The system integrates functions of eight kinds of software, comprising telephone networking early-warning software, wire video monitoring early-warning software, wireless video monitoring early-warning software, mobile video monitoring early-warning software, satellite video monitoring early-warning software, video on demand software, video session software, live video software, and the like, and the functions can be used independently or integratedly by users. The system can perform large-area networking management on fire alarm systems in buildings, and can realize effective monitoring and quick alarm. The system guarantees the normal operation of the fire alarm systems and fire safety facilities, improves the reliability of the fire alarm systems, and reduces the rate of false alarm. Moreover, through the equipment operating data and alarm information of the fire early-warning monitoring intelligent alarm system based on the internet, the developing process of intelligence and networking of city fire management is accelerated, and thus, the integral technology level and the comprehensive capability of fire prevention and reduction are enhanced.
Owner:北京中海锦安高科技有限公司
Multi-point display method and device based on intelligent blackboard and terminal equipment
PendingCN113934323AReduce distractionsImprove the effective recognition rateInput/output processes for data processingTerminal equipmentEngineering
The invention is suitable for the technical field of data processing, and provides a multi-point display method and device based on an intelligent blackboard and terminal equipment. The method comprises the steps that it is detected that multiple objects exist at the position away from the intelligent blackboard by a preset distance through a sensing device, and the position coordinates of each object in the multiple objects are determined; a processing unit determines the size of each object and the distance between any two objects based on the position coordinates; the processing unit determines one or more effective objects in the plurality of objects according to the size of each object and the distance between any two objects; the processing unit collects contact information of effective objects on the intelligent blackboard through the sensing device; and the processing unit sends the contact information to the display equipment, so that the display equipment displays the handwriting of the effective object on the intelligent blackboard based on the contact information. According to the invention, the requirements that multiple persons write at the same time and the writers are commented in sequence after writing are met, and the practical problems in teaching and conferences are solved.
Owner:河北师达教育科技有限公司
Firewood carbonization monitoring device
InactiveCN105441094AMonitor temperatureSolve real problemsCoke oven safety devicesBiofuelsFirewoodVideo monitoring
The invention discloses a firewood carbonization monitoring device. The firewood carbonization monitoring device is characterized in that a temperature monitoring device [2], a video monitoring device [3] and a center control device [4] are arranged in a charcoal kiln [1] for firewood carbonization, in use, the temperature monitoring device [2] and the video monitoring device [3] continuously monitor temperature and video information in the charcoal kiln, the temperature and video information is transmitted into the center control device [4], the center control device [4] analyzes and determines a firewood carbonization state, the temperature monitoring device [2] and the video monitoring device [3] are designed according to high temperature resistance requirements, a prompt device [5] is arranged and is used for prompting a process and matters needing attention, the information prompting method comprises sound or LED light display, and an analysis program is built in the center control device [4] and is used for determining a carbonization state. The firewood carbonization monitoring device can produce an intelligent determination result at any time, monitor a temperature in the charcoal kiln, determine a firewood carbonization state and solves realistic problems timely.
Owner:XINCHANG YULIN STREET DAKANG MACHINERY FACTORY
Overhauling platform of breaker
The invention relates to an overhauling platform of a breaker. The platform comprises a transportation vehicle frame, a bearing guide rail, an elevating system and a brake structure. The transportation vehicle frame has a frame-shaped structure and one side of the transportation vehicle frame is opened; and steering wheels are respectively arranged at four corners of the bottom of the transportation vehicle frame; besides, the bearing guide rail includes two fixed bases are symmetrically and fixedly connected on the top surface of the transportation vehicle frame; each of the fixed base surface is provided with a guide groove and a plurality of pulleys are arranged in each of the guide groove in a line; and one end of each of the fixed base is provided with a guide part. According to the invention, a present condition that three overhauling tools are utilized to complete transportation task is changed; an intermediate link during the operation is simplified; and resources are saved; and an objective that a breaker is taken out from a working position and is dropped at an overhauling placing position or operation in a reversed order is realized is achieved only by one overhauling tool.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
Simulation method of offshore boundary conditions for flng unit liquefaction process
ActiveCN107463754BEffective assessmentReduce computing timeDesign optimisation/simulationSpecial data processing applicationsProcess dynamicsHydrology
Owner:CHINA NAT OFFSHORE OIL CORP +1
An intermittent fixed explosives incineration treatment device
ActiveCN109654513BLarge single feedImprove the level of security protectionIncinerator apparatusExplosive AgentsEngineering
Owner:XIAN MODERN CHEM RES INST
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