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81results about How to "Avoid or minimize losses" patented technology

Intelligent fire hazard monitoring and control system

InactiveCN105678941ATimely and effective remedyTimely and effective control measuresFire rescueFire alarmsGas detectorVoice communication
The invention discloses a fire intelligent monitoring and control system, comprising: monitoring equipment, main control equipment, execution equipment and a host computer, the monitoring equipment communicates with the main control equipment, and the main control equipment communicates with the execution equipment and the upper computer respectively; the monitoring equipment includes: : A combination of one or more of smoke detectors, flame detectors, temperature detectors, camera devices and gas detectors; the main control device includes: main control unit, first voice communication module, fire extinguishing device drive module and a circuit breaker drive module; the execution equipment includes a fire extinguisher and a circuit breaker, the circuit breaker communicates wirelessly with the circuit breaker drive module, and the fire extinguisher communicates wirelessly with the drive module of the fire extinguisher; the upper computer includes a host computer, a display, a keyboard, a mouse and an alarm module. It solves the problem of psychological panic caused by the usual alarm sound of the current fire monitoring system, and at the same time, it can timely and effectively control the fire in the monitoring area to avoid or reduce the losses caused by the fire.
Owner:梁清泉

Risk-based tunnel supporting structure design method

The invention relates to a risk-based tunnel supporting structure design method, comprising three links: determining the initial design scheme of a tunnel supporting structure, evaluating the risk of each supporting scheme, and making decision and analyzing the supporting schemes. In the method, a probability method and a risk analysis model are applied to carry out quantitative description to physical mechanics indexes of a surrounding rock and the uncertainty in geological exploration; the initial design scheme for supporting is given according to the level of the surrounding rock; space effect of tunnel excavation is considered and a convergence-confinement method is improved through the hardening process for pneumatically placed concrete supporting, the calculation procedures of the improved convergence-confinement method are used for analyzing the determined supporting design scheme, and the failure probability of the supporting and the surrounding rock is given under different construction parameters; and then the risk evaluation is carried out to the supporting design scheme, accident risk acceptance criteria is determined, and proper supporting design scheme is determined by a decision maker. In the method, the risk ideal is led in engineering practice for processing various uncertain problems in the tunnel structure design, so as to be beneficial to carrying out quantitative analysis and evaluation to the effect of the uncertain factors in the tunnel supporting structure design and ensure the safety and the investment control of the tunnel forcefully and comprehensively.
Owner:TONGJI UNIV

Method for realizing early warning and positioning of malfunctions for power cable network

The invention discloses a method for realizing early warning and positioning of malfunctions for a power cable network, which comprises the following steps of: starting an optical time-domain reflectometer (OTDR) by a manual or an automatic way to test an appointed fiber to acquire optical cable test data, wherein connecting lines of all sampling points form an OTDR curve of a fiber chain; forming an upward step index reflective event by reflection of light caused by an optical connector, fractures and ending points; forming a downward step index non-reflective event by bending and splicing the optical fiber which increases the attenuation of the optical fiber; finding the step index points of the curve through data analysis and determining the optical fiber event points such as optical fiber head end, tail end, optical fiber connector and splicing points and the like; determining the operation state of the optical fiber through comparison with reference data and the change of attenuation data; and sending the early warning information when the data change exceeds the early warning threshold. The invention can be used for emergency early warning and positioning when the optical fiber network degrades and is in emergent cases so that the anti-damage capacity of the communication network is strengthened and the occurrence of optical fiber blockage is reduced to a great extend.
Owner:STATE GRID ELECTRIC POWER RES INST

Feedback type oscillating jet stream refrigerating machine

The invention provides a reaction-type oscillation jet flow refrigerating machine and belongs to the gas pressure energy expansion refrigeration field. The whole machine of the invention is totally static, and adopts the combined structure of a reaction-type oscillation fluidic generator and an adopter, the actuation to the jet flow is realized by the compression wave reaction in order to generate the oscillatory wall-attachment jet, unsteady gas expansion refrigeration is realized by the cooperating work of a flow channel component, a regulating mechanism is coupled in a compression wave reaction channel, the switching frequency of the jet wall-attachment oscillation is changed via regulating gas capacity to adapt to different operating conditions, thereby obtaining the highest operating efficiency. The invention has no moving member or dynamic sealing, thereby being particularly suitable for high pressure situations, such as high pressure natural gas deep freezing dehydration, recovering heavy component from high pressure gas mixture and so on. The variable gas capacity frequency modulation self-oscillation jet flow refrigerating machine with higher refrigerating efficiency and lower refrigerating temperature than that of throttling decompression can run with liquid, thereby providing an efficient method and a device for efficient utilization of pressure energy in the combination gas stratum.
Owner:DALIAN UNIV OF TECH

Bearing early fault diagnosis method for multiple noise reduction processing

The invention discloses a bearing early fault diagnosis method for multiple noise reduction processing. The method comprises the following steps: collecting a vibration signal of a bearing; carrying out short-time Fourier transform on the bearing vibration signal, and preliminarily judging whether the bearing has a fault or not; adopting wavelet packet transformation to decompose and reconstruct the bearing vibration signal, and carrying out preliminary denoising; decomposing, screening and reconstructing the wavelet packet reconstruction signal by using an ensemble empirical mode decomposition method; eliminating aliasing interference signals contained in the reconstructed signals, and performing multi-layer noise reduction on the bearing vibration signal; carrying out demodulation processing on the reconstructed signal after noise reduction, and extracting a bearing fault frequency; and comparing with a theoretically calculated fault frequency, and diagnosing to obtain a fault conclusion of the bearing. According to the method, a fault analysis mode combining wavelet packet transformation, an ensemble empirical mode decomposition method and autocorrelation calculation denoising is adopted, weak fault features are highlighted, bearing abnormity can be diagnosed and recognized as early as possible in the early fault stage of the bearing, and losses caused by equipment faults are avoided or reduced.
Owner:CHINA THREE GORGES UNIV

Method and system for professionally monitoring and warning weather for wind farms on basis of GIS (geographic information system) of power grid

The invention discloses a method and a system for professionally monitoring and warning weather for wind farms on the basis of a GIS (geographic information system) of a power grid. The method includes positioning coordinates of weather monitoring stations in a GIS platform of the power grid, transforming the coordinates to display weather monitoring and warning positioning information of the weather monitoring stations in GIS maps of the power grid and creating weather monitoring and warning positioning information chart layers; creating power grid equipment chart layers of the wind farms; matching and correlating the weather monitoring and warning positioning information chart layers with the power grid equipment chart layers of the wind farms, displaying weather information for power grid equipment of the wind farms in real time and analyzing and displaying warning for weather disasters. The method and the system have the advantages that occurrence and development of disastrous weather such as typhoon, rainstorm and strong convection can be visually and comprehensively monitored in real time for the power grid equipment of the wind farms and the like, movement and evolution of systems of the weather can be tracked, and analysis bases can be provided for predicting and forecasting the disastrous weather.
Owner:EMERGENCY MANAGEMENT CENT OF STATE GRID SHANDONG ELECTRIC POWER

Transmission system capable of achieving three variable transmission processes

ActiveCN108591411AAdapt to variable speed transmission needsMeet variable speed transmission needsFluid gearingsHydraulic pumpMechanical equipment
A transmission system capable of achieving three variable transmission processes comprises an input shaft, a sun gear shaft, an input gear, a linkage gear, an intermediate driving gear, a first clutch, a second clutch, a planetary mechanism, a hydraulic pump and a hydraulic motor. The input shaft and the sun gear shaft are arranged in parallel. The input gear is meshed with the linkage gear. The input end of the first clutch is in transmission connection with the input shaft. The driven end of the first clutch is fixedly connected with the input gear. The input end of the second clutch is in transmission connection with the sun gear shaft, and the driven end of the second clutch is fixedly connected with the linkage gear. A sun gear in the planetary mechanism is fixedly connected with thesun gear shaft. A tooth ring is fixedly connected with the intermediate driving gear. A planet carrier is fixedly connected with the linkage gear. A rotor of the hydraulic pump is fixedly connected with the input shaft. A rotor of the hydraulic motor is fixedly connected with the sun gear shaft. The hydraulic pump and the hydraulic motor are connected into an oil supply loop in series. The transmission system capable of achieving the three variable transmission processes enables the variable-speed transmission process to both have the features of mechanical transmission and hydraulic transmission, and therefore the transmission system capable of achieving the three variable-speed transmission processes can meet the variable transmission needs of different types of mechanical equipment.
Owner:HEFEI UNIV OF TECH +1

Artificial intelligent remote automatic control processing system for air detection

The invention relates to the technical field of air detection, and discloses an artificial intelligent remote automatic control processing system for air detection. The artificial intelligent remote automatic control processing system comprises an indoor air detection module and a central control system, wherein the indoor air detection module is used for detecting the quality of indoor air and transmitting data to the central control system; and the central control system is used for receiving a data signal for data processing, and sending control instructions to a living room / bedroom air exhaust module, a bathroom air exhaust module, a kitchen air exhaust module, an air purification, humidification and dehumidification module, a gas valve control module, a window temperature adjusting module, a fire hydrant valve control module, a window ventilation module, a control way switching module, an emergency lighting switch and a wireless data transmission module when the air pollutant index exceeds the limit. When the air detection system is designed, various indexes of the indoor air can be monitored in real time, after the indoor air index exceeds the limits, the corresponding measures are implemented, such as ventilation, water spray suppression, lighting and alarming, the intelligent degree is high, and the personal and property safety of a user is effectively guaranteed.
Owner:黑龙江全河科技有限公司

Flower and tea food as well as making method and application thereof

The invention belongs to the field of food processing, and particularly discloses a flower and tea food as well as a making method and application thereof. The food is made from main raw materials offresh plant flowers and newly-picked fresh tender tea leaves, and is made through the following steps of performing mixing, performing soaking, performing distillation, collecting distillate, and performing clathration through beta-cyclodextrin so as to obtain a solution; then performing natural fermentation on distilled raw material residues and remaining fluid under natural conditions, performing pressure filtration, performing centrifugal separation, performing filtration, and performing concentration so as to obtain concentrate; and combining the concentrate with the cyclodextrin clathration solution, and performing homogenizing so as to obtain the product namely the flower and tea food, wherein the weight percentage of the plant flowers in the raw material components is 20-50%, and the weight percentage of tea in the raw material components is 50-80%. The flower and tea food disclosed by the invention has the technological characteristics that the dissolution rate of the raw materials is high, the conversion rate is high, few losses are generated, the application effect of products is strengthened, the mouth feel is improved, the quality of the products is improved, and a newraw material product is provided for the processing industry of food products, seasoning products, beverages, wine processed products, cosmetics and the like.
Owner:徐州绿之野生物食品有限公司

Flower black tea food and processing method thereof and application thereof

InactiveCN107822127ARegulate or increase nutritional structureImprove stylingCosmetic preparationsToilet preparationsBlack teaFood flavor
The present invention specifically discloses flower black tea food and a processing method thereof and an application thereof. The flower black tea food is prepared from plant flowers and black tea asraw materials, and the raw materials are in the following weight percentages: 10-50% of plant flowers and 50-90% of black tea. The method is as follows: firstly the raw materials are picked, the picked raw materials are soaked, the soaked raw materials are crushed, the crushed raw materials are distilled, the distilled raw materials are wrapped to obtain a solution, then the distilled remaining residues and remaining liquid are subjected to a natural fermentation, juice extracting, centrifugal separating, filtering and concentrating are conducted to obtain a concentrated solution, then the distill wrapped solution is blended with the concentrated solution evenly, and filling, sterilizing and cooling are conducted to prepare products. A technology makes full use of the raw materials, and the flower black tea food is applied to food, cakes, seasoning products, soft drinks, wine products, and nutritional supplement products, can well reflect taste and flavor of the flowers and black tea,forms a unique style, increases a variety of flavors and raw material choices of the flavored products, and has relatively good applications, benefits and prospects.
Owner:徐州绿之野生物食品有限公司

Flower green tea food and processing method and application thereof

InactiveCN107593994ARegulate or increase nutritional structureImprove stylingTea extractionModified nutritive productsNutrition supplementationFood flavor
The present invention specifically discloses a flower green tea food, and a processing method and an application thereof. The flower green tea food is prepared from plant flowers and green tea as rawmaterials, wherein each of the raw material components is in the following weight percentages: 10-50% of plant flowers and 50-90% of green tea. The method comprises the following steps: firstly raw material picking, soaking and crushing, distilling and wrapping are conducted to prepare a solution, then the distilled remaining residues and remaining solution are subjected to a natural fermentation,squeezing, centrifuging and separating, filtering and concentrating are conducted to prepare a concentrated solution, then the distilled and wrapped solution and concentrated solution are blended evenly, and filling, sterilizing and cooling are conducted to prepare a product. The technology utilizes the raw materials in full effects and the flower green tea food has applications in food, cakes, seasoning products, soft drinks, alcoholic products and nutritional supplement products, can well reflect mouthfeel and flavor of the flowers and green tea, forms a unique style, and increases raw material choices for a variety of flavors and style products. The product has relatively good application and benefit prospects.
Owner:徐州绿之野生物食品有限公司

Energy-saving and efficient intelligent logistics conveying system

The invention discloses an energy-saving and efficient intelligent logistics conveying system. The system comprises a material weighing unit, a number management unit, a programmable manager, a processing station operation unit, a conveying unit, a fault detection unit, a cloud calculation platform, a hardware server and terminal platform software. The output end of the material weighing unit is connected with the input end of the number management unit, and the output end of the number management unit is connected with the input end of the programmable manager. The invention discloses an energy-saving and efficient intelligent logistics conveying system. Basic information of different materials is collected through the material weighing unit and the number management unit; real-time tracking of cloud calculation can be realized according to information of different materials; according to the logistics transportation system, the practicability of the logistics transportation system isimproved, improvement of the packaging accuracy is facilitated, the conveying unit can further conduct analog comparison on various different data effects to eliminate whether the data effects are correct or not, classification of materials under various different data conditions is facilitated, and the classification accuracy is improved.
Owner:广东洪裕智能制造研究院有限公司

Method for preparing magnetic nano amino compound, and nucleic acid extraction method

The invention discloses a method for preparing a magnetic nano amino compound, and a nucleic acid extraction method. The method comprises the following steps: step 1, purifying diatomite for later use; after cleaning, putting the diatomite into a flask, and adding deionized water; standing after stirring, carrying out sample separation and centrifugation on a supernatant, collecting precipitates,and repeating the steps by using ethanol instead of deionized water so as to further remove ions and protein impurities; and finally, drying the purified diatomite in a drying box, and storing in a reagent bottle for use; step 2, carrying out diatomite magnetization treatment; drying magnetic diatomite DE@Fe3O4 in a drying box; step 3, loading APTES on the magnetic diatomite, firstly dropwise adding the APTES into an ethanol solution, and stirring by using a magnetic stirrer; then, adding the magnetic diatomite into an obtained solution, and collecting DE@Fe3O4@APTES by using a magnet; then respectively washing with ethanol and deionized water; and finally, drying the DE @Fe3O4 @APTES in a drying oven, and storing the DE @Fe3O4 @APTES in a reagent bottle for use.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Prestressed tension limiting plate

The invention discloses a prestressed tension limiting plate. The prestressed tension limiting plate is disposed between an anchorage device and a jack and comprises a limiting plate body, a detachable spring, a movable top plate and a buckle ring which are arranged inside the limiting plate body. The shape of the limiting plate body is a hollow cylinder with one end open, the top end of the limiting plate body is an open end, the open end is in contact with the anchorage device, and the bottom end of the limiting plate body is in contact with the jack. A step groove is formed in the open endof the limiting plate body, an annular limiting groove is formed in the lower portion of the step groove, and the buckle ring is disposed in the limiting groove. One end of the spring is in contact connection to the bottom end of the limiting plate body, and the other end of the spring is in contact connection with the movable top plate. The movable top plate moves up and down on the inner wall ofthe limiting plate body and is limited by the buckle ring at the top end. A plurality of circular holes are formed in the limiting plate body and the movable top plate. The prestressed tension limiting plate can reduce the loss of the tension prestress, reduce the damage to an anchor cable, and save the cost.
Owner:CHINA FIRST METALLURGICAL GROUP

Cooperative-dosage-form pig semen diluent

The invention discloses a cooperative-dosage-form pig semen diluent. The pig semen diluent is characterized in that an individual package of 1,000-ml liquid A and an individual package of 50-ml liquidB combine with each other to form a cooperative package A and a cooperative package B, and during use, the liquid B is temporarily added into the liquid A and evenly stirred to prepare the diluent; the 1,000-ml liquid A in the individual package is prepared from 28.5-31.5 g of mono-molecular crystal water glucose, 0.38-1.29 g of mono-molecular crystal water citric acid, 4.93-6.47 g of bi-molecular crystal water disodium hydrogen phosphate and the balance water for injection; the 50-ml liquid B in the individual package is prepared by carrying out wetting, distilling and sterilization on violaphilippica, flos chrysanthemi indici, houttuynia cordata and coarse dandelion powder. By adopting the individual package of the liquid A and the individual package of the liquid B for making the matched cooperative packages, the cooperative-dosage-form pig semen diluent is prepared; therefore, when the product is about to be used, the package of the liquid B is opened, and then the liquid B is injected into the package of the liquid A, after evenly shaking, the pig semen diluent which has stable sterilization and anti-virus functions is formed and has the advantage that the better stability of the diluent can be maintained during the storage and transportation periods.
Owner:GUANGDONG ZHONGNONGLIAN BIOLOGICAL PHARMCO
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