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8634 results about "National standard" patented technology

Roller-type reverse thermal desorption system for soil polluted by organic matters

The invention relates to a roller-type reverse thermal desorption system for soil polluted by organic matters. The roller-type reverse thermal desorption system comprises a soil feeding system, wherein the soil feeding system and a heat source system are connected with a reverse thermal desorption system; the reverse thermal desorption system is connected with a dust removing system, a cooling system and an active carbon adsorption system in turn; and control ends of the soil feeding system, the heat source system, the reverse thermal desorption system, the dust removing system, the cooling system and the active carbon adsorption system are connected with a control system. In the roller-type reverse thermal desorption system, hot air is fed into a reverse thermal desorption roller by an ignition system, and polluted soil is fed into the reverse thermal desorption roller by a soil transferring device, wherein the hot air contacts the soil reversely, so that organic pollutants contained in the soil are heated and volatilized; the purified soil is used as backfill soil; and the volatilized tail gas is dedusted by a cyclone dust extractor and an adsorption dust extractor after passing through an induced draft fan, and the dedusted volatilized tail gas is absorbed by a honeycomb-shaped active carbon tower after passing through an atomization cooling tower and a dial plate cooling device, and finally is discharged by a tail gas exhaust device on the basis of meeting the national standard. Materials can be fed into the roller-type reverse thermal desorption system continuously and can be heated directly; and the hot air and the polluted soil are fully mixed, and the roller-type reverse thermal desorption system has high thermal desorption efficiency.
Owner:TSINGHUA UNIV +1

Thermal and humid environment integrated control air-conditioning system and method based on thermal comfort evaluation

The invention provides a thermal and humid environment integrated control air-conditioning system and method based on thermal comfort evaluation. The comfort operating level and the corresponding PWV numerical range of an air conditioner are set in strict accordance with national standards, the air conditioner is made to have the humidification adjusting function, an average thermal sensation index PMV value is calculated by acquiring air temperature, relative air humidity, average radiation temperature, wind speed, metabolic rate and clothing thermal resistance and compared with a preset comfort PMV value interval, and the air supply speed, the refrigerating / heating operating state and the humidifying / dehumidifying operating state of the air conditioner are intelligently adjusted according to the comparison result, so that a target area is in a comfort state satisfying the human body, the comfort requirement of the human body is met, the thermal comfort environment of the target area is easily improved, and energy conservation and emission reduction of a building are promoted. The principle and parameter setting of the system and method are scientific, and the operation method is simple and easy to control and implement.
Owner:CHONGQING UNIV

High-strength stretch-proof flame-retardant textile

InactiveCN101748549ASolve the difficulty of weavingSolve not easy to dyeWoven fabricsYarnCompound aEngineering
The invention provides a high-strength stretch-proof flame-retardant textile. The flame-retardant textile is formed by weaving a flame-retardant composite yarn, wherein the flame-retardant composite yarn is formed by compounding a core yarn and a leather yarn and is one of a covering yarn and a fasciated yarn; the core yarn adopts a flame-retardant filament yarn as a raw material; the leather yarn adopts a flame-retardant short fiber as a raw material; and the weight ratio of the flame-retardant filament yarn to the flame-retardant short fiber is 30-90:10-70. Compared with the conventional flame-retardant textile, the high-strength stretch-proof flame-retardant textile has higher strength and overcomes the defects of difficult weaving, difficult dyeing and uncomfortableness of the high-strength fiber; the high-strength stretch-proof flame-retardant textile has permanent flame retardance which cannot decrease after the textile is washed, and better textile strength; the textile has soft and comfortable handfeel, rich color and good strength, meets the requirements of various flame-retardant clothes and related standards; the product has rich and varied appearances and is durable; and the combustion performance of the textile can meet the national standards of flame-retardant products.
Owner:汕头市奥山服饰有限公司

Manufacturing method of micro spherical titanium and titanium alloy powder

ActiveCN104475743AFast purification smeltingControlled purification smeltingSpherical shapedTitanium alloy
The invention relates to a manufacturing method of micro spherical titanium and titanium alloy powder, and belongs to the technical field of metal and alloy powder manufacturing. The manufacturing method comprises the steps that a titanium and titanium alloy wire or bar is manufactured by using sponge titanium in the national standard TA1 grade as a raw material; forvacuum treatment is conducted on a powder manufacturing device, and then the powder manufacturing device is filled with inert protective gas; the raw material wire or bar is fed into a smelting chamber through a continuous feeding mechanism and a straightener, the raw material is heated and smelted through a high-frequency induction coil, and the alloy raw material is molten to form stable liquid flow or drip flow; supersonic atomizing nozzles in atomizers are opened, and breakage, dispersion and forced cooling powder manufacturing are conducted on the molten liquid flow or the drip flow; powder is obtained through a powder collector, and is screened through an ultrasonic vibrating screen to obtain the micro spherical titanium and titanium alloy powder. The micro spherical titanium and titanium alloy powder manufactured through the manufacturing method is small in particle size, high in degree of sphericity, good in liquidity and low in impurity content, and has smooth surfaces.
Owner:有研增材技术有限公司

Electric energy quality synthesis evaluation system

The invention relates to a power quality comprehensive evaluation system in the technical field of the electric power application; in the invention, a power quality collecting module obtains all items of power quality indexes from an electric fence; a power quality index grading module divides the power quality indexes obtained from the power quality collecting module into setting grades according to national standard or international generally recognized requirements; a probability distribution matrix obtaining module obtains probability of the power quality in each grade, and then the probability of the power quality index in each grade is obtained for obtaining a probability distribution matrix; a weight vector obtaining module obtains weight vector of the power quality index; an evaluation quantized value obtaining module obtains the only quantized value of the power quality comprehensive evaluation according to the probability distribution matrix and the weight vectors of all the indexes; a power quality evaluation module compares the only quantized value with the evaluation system for obtaining power quality evaluation result. The system can really reflect the probability characteristics of the power quality indexes and can comprehensively and objectively carry out comprehensive evaluation to the power quality.
Owner:SHANGHAI JIAO TONG UNIV +1

Camellia oil preparation method for cosmetics

The invention relates to a preparation method of cosmetics camellia oil. High-quality camellia seeds are selected to be used as the raw material; the camellia seeds are roasted under the negative pressure and at the lower temperature, and are husked after natural cooling and are squeezed at the room temperature to obtain high-quality crude oil with low acid value and pale yellow color; impurities are removed through filtration under the heating condition, alkali refining and ethanolic extracting two-stage process is utilized for acid stripping and de-coating; then the mixture composed of active carbon and floridin is used as de-coloring agent for de-pigmentation; peroxide and unclean flavor are removed through deodorization; then the drying winterization is acted; finally, the cosmetics camellia oil is obtained, wherein, the acid value is less than 0.1 mgKOH / g, the peroxide value is less than 0.5 mmol / kg, the appearance is colourless approximately as well as clear and translucent, and no unclean flavor exists. The cosmetics camellia oil reaches or exceeds the requirement of the national standard GB11765-2003 on first level expressed tea-seed oil, and can be directly used for manufacturing the cosmetic such as skin care oil for babies; in addition, an edible camellia oil fabrication plant can be improved for production, thereby lowering the investment cost greatly.
Owner:广东新大地生物科技股份有限公司

Rolling production method capable of reducing hardness of 42CrMo

The invention belongs to the field of production machining of special steel of the metallurgical industry, and relates to a rolling production method capable of reducing hardness of 42CrMo. A 42CrMo casting blank serves as a raw material, and the method sequentially comprises following working procedures of heating, descaling, a rough rolling, cooling after rough rolling, continuous rolling, through water cooling, bar reducing sizing mill finish rolling, cooling bed cooling and finally obtaining a finished product bar; by the adoption of the technology, the site operation is simple, online automatic control is easily achieved, and operation labor intensity of a worker is reduced; through the online controlled rolling controlled cold technology, straightness of the 42CrMo steel grade is greatly improved; the subsequent heat treatment technology (annealing technology) is reduced, production cost is saved, the production period is shortened, and the steel market competitiveness is improved; the hardness value range of the obtained 42CrMo steel ranges from 220 HBW to 260 HBW; a metallographic structure comprises ferrite and pearlite; the banded structure is smaller than or equal to 2 levels; the grain size is larger than or equal to 8 levels; and the mechanical property can meet the national standard and user needs.
Owner:DAYE SPECIAL STEEL CO LTD

Insulating and environment-friendly PVC modified material and preparation method thereof

The invention relates to the technical field of PVC modified materials and particularly relates to an insulating and environment-friendly PVC modified material and a preparation method thereof. The insulating and environment-friendly PVC modified material contains the following raw materials: 80-120 parts of PVC resin, 40-60 parts of bulking agent, 40-60 parts of plasticizer, 10-15 parts of insulation modifier, 3-7 parts of heat stabilizer and 0.5-1.5 parts of lubricant, wherein the plasticizer is a mixture prepared from dioctyl terephthalate and tri-n-butyl citrate which are in the weight ratio of (5-7): 1; the insulation modifier is a mixture prepared from kaolin, titanium white and glass micro-beads which are in the weight ratio of (2-4): (1.5-2.5): 1, and the particle size of the glass micro-beads is smaller than 20 microns. According to the modified material prepared by the preparation method, all properties exceed the national standards, the insulating property is good, the resistivity reaches up to 5.1*10<14> omega, and the modified material is environment-friendly; the preparation method disclosed by the invention is simple in process, convenient in operation and control, stable in quality and high in production efficiency and can be applied to large-scale industrial production.
Owner:广东祺龙科技有限公司

Charging fault diagnosis and safety detection system and method of electric vehicle

The invention discloses a charging fault diagnosis and safety detection system and method of an electric vehicle. The system comprises a BMS, a CAN wire, a VCU, a vehicle charger, a DC charging pile,an AC charging pile, a battery, a vehicle charging interface, a charging interface, a charging gun and a charging fault diagnosis and safety detection system, and the charging fault diagnosis and safety detection system comprises a signal acquisition unit, a national standard memory, a processing unit, a human-machine interaction interface and a relay. The method includes steps: the charging faultdiagnosis and safety detection system is externally connected between the vehicle charging interface and the charging interface of the charging gun, the connection to an electric vehicle charging system is realized through the CAN wire, and through collection of message information, acquired by the VCU, of the BMS and communication messages of the DC charging pile and the AC charging pile and comparison with an electric vehicle charging national standard, the reason of charging failure is determined, and charging is finished after occurrence of problems of overcurrent and overvoltage of charging. According to the system and the method, the charging detection efficiency and the charging security of electric vehicles can be greatly improved.
Owner:NANJING UNIV OF SCI & TECH

Multilane free-flow electronic toll collection system and method based on multi-beam antenna

ActiveCN103268640AImplement concurrent transactionsEffective Violation InspectionTicket-issuing apparatusElectronic toll collection systemVehicle detection
The invention discloses a multilane free-flow electronic toll collection system and method based on a multi-beam antenna. The multilane free-flow electronic toll collection system comprises a background system and a front end lane system, wherein the background system carries out charging processing, user service and information search; the front end lane system comprises a vehicular access communication and electronic tag positioning subsystem, a vehicle detecting and positioning subsystem, a snapshot and number plate recognition subsystem, and a lane control subsystem, wherein vehicle-mounted electronic tags are positioned through the adoption of the multi-beam antenna, orientation downlink beams are emitted to complete charging trading with the vehicle-mounted electronic tags, and real-time self-adaptation dynamic regulation is carried out on an emission area according to motion tracks of the vehicle-mounted electronic tags; the vehicle detecting and positioning subsystem detects toll area vehicle position information and triggers number plate snapshot; the snapshot and number plate recognition subsystem carries out vehicle snapshot and number plate recognition; the lane control subsystem collects and processes information outputted by the subsystems, and transmits processed data to the background system. According to the multilane free-flow electronic toll collection system and method, applicability of existing national standard ETC electronic tags in multilane free-flow electronic tool collection application on roads and city roads can be guaranteed.
Owner:北京速通科技有限公司

Selective sintering-machine flue-gas heat exchange and denitration system and method thereof

The invention provides a selective sintering-machine flue-gas heat exchange and denitration system and a method thereof. The selective sintering-machine flue-gas heat exchange and denitration system comprises a sintering machine (20), a primary heat exchanger (7), a second heat exchanger (8), a denitration device (9), a main dust remover (12) and a desulphurization device (13), wherein a high nitrogen oxide wind box (1) of the sintering machine (20) is sequentially communicated with the primary heat exchanger (7), the denitration device (9), the main dust remover (12) and the desulphurization device (13), and a high-temperature wind box (2) of the sintering machine (20) is communicated with the main dust remover (12) through the primary heat exchanger (7). According to the method, waste heat of high temperature flue gas of the sintering machine and sintered ore cooling equipment is utilized, and heating and temperature increasing of NOx flue gas can be achieved without any external heating source. By the adoption of the system and the method, denitration efficiency of the selected flue gas reaches up to 80%-90%, and therefore NOx emission of the flue gas in the whole sintering machine is superior to a national standard under low investment and operating costs.
Owner:CERI ENERGY & AIR PROTECTION TECH CO LTD +1

Method for correcting elasticity modulus and stress-strain curve in metal material compression test

The invention relates to a method for correcting an elasticity modulus and stress-strain curve in a metal material compression test and a related model. The model is a sandwiched model. According to the method for correcting a metal material compression elasticity modulus and stress-strain curve obtained by the model, most of national standard or non-national standard samples of metal materials with linear strengthening behaviors, particularly metal samples in which L is equal to (2.5-3.5) d or L is equal to (2.5-3.5) b or L is equal to 2d or L is equal to 2b can be corrected, so that the real compression elasticity modulus can be measured on samples which are unsuitable for measuring the compression elasticity modulus in the national standard stipulation; particularly, the method can be used for correcting the elasticity modulus and stress-strain curve of small-size non-national standard samples. According to the method, the construction of a mechanical constitutive equation is greatly convenient, and for research and development of novel materials, the requirements of the test technology on the sizes and shapes of the samples can be lowered, the measured mechanical parameters are reliable, and the research and development period is shortened.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI

Motor vehicle red light running rule violation evidence obtaining method based on high-definition videos

The invention belongs to the technical field of intelligent traffic management, in particular to a motor vehicle red light running rule violation evidence obtaining method based on high-definition videos. According to the method, a high-definition camera is adopted for shooting videos, and the vehicle behavior track is analyzed according to the target detection and tracking technology of the video contents. The red light running behavior is detected under the red light phase of traffic lights, effective rule violation high-definition images are obtained after the red light running rule violation is confirmed, two red light running evidence obtaining pictures conforming to the national standard (GA/T832-2009) are formed, and in addition, video stream recording the whole red light running rule violation process is synthesized into the evidence obtaining videos. Finally, the evidence obtaining results are transmitted to a management system of a law-enforcing department through network. When the method provided by the invention is adopted, the operation completely conforms to the national standard of the red lamp running automatic recording system, and in addition, the customized expansion can be carried out for different cities. Compared with the exiting red light snap-shot technology, the method provided by the invention has more efficient recoding effectiveness and higher catching rate.
Owner:FUDAN UNIV
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