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50results about How to "High social value" patented technology

Anti-cavitation protection device of feedwater pump

The invention discloses an anti-cavitation protection device of a feedwater pump, which comprises two pressure detection units, a difference value comparison unit and a control system. The difference value comparison unit is used for comparing the difference value of signals detected by the two pressure detection units and comparing and judging a difference value comparison result with a set protection value Dp=NpSH* Rhog, the control system is used for controlling the feedwater pump to trip according to a comparison and judgment result of the difference value comparison unit and carrying out cavitation protection, the two pressure detection units are used for respectively detecting the suction inlet pressure of the feedwater pump and the internal pressure of a deaerator in real time, and the difference value comparison unit and the control system are connected and synchronously transmit the difference value comparison result to the control system. The invention has reasonable design, simple structure, convenient arrangement and real-time, dynamic and accurate reflection of the practical operation working conditions of the feedwater pump, is more scientific, reasonable and reliable than the traditional cavitation protection, and effectively overcomes the defects of necessary big-head booster pump arrangement, easy cavitation protection malfunction, poor use effect, and the like of a traditional feedwater pump.
Owner:NORTH CHINA ELECTRICAL POWER RES INST

Wind-energy dust collector

The invention relates to air dust collecting equipment, in particular to a pollution-free vertical sleeve-type air dust collector employing natural wind power. The product of the invention comprises a dust collecting module and a power module and comprises 17 parts including a sleeve base, a sleeve, a centrifugal helix slice, a core, a variable speed bracket, a fan cover base, a roller, a variable speed gear, a fan cover blade, a fan cover roof, a central shaft, a fan cover rotating wheel, a ball bearing, an exhaust fan, a dust filtering sponge, a dust filtering screen and a core base. The invention overcomes the known defects of the dust collectors at present, develops the strong points and avoids the weak points, gets rid of the stale and brings forth the fresh, strives to farthest reduce the production cost and the operation cost of the dust collector while reducing the unit volume and improving the reliability and forms an air dust collecting device with the natural wind force as the power and without extra power. The air dust collector has the characteristics of simple structure, low cost, reliable operation, convenient maintenance and the like, can be widely applied to such industries as living, production, working, commerce, entertainment, sand-proofing, etc, is suitable for families, plants, organs, shops, restaurants, afforestation and has broad market application prospect and higher economic and practical value.
Owner:中泰联讯(北京)科技有限公司

Dynamic detection method for simulating angular contact ball bearings in meteorological satellite scanning mechanism

Provided is a dynamic detection method for simulating angular contact ball bearings in a meteorological satellite scanning mechanism. A detection process is achieved through four groups of test unit assemblies and magnetic fluid seal transmission assemblies in a detection device, paired angular contact ball bearings, namely a first angular contact ball bearing and a second angular contact ball bearing, are assembled in the four test unit assemblies, a molecular pump and a mechanical pump in the detection device can provide a high vacuum degree of 10-5Pa, the environment temperature is controlled to be within the range from the normal temperature to 50 DEG C, a servo motor provides continuous rotation and reciprocating swinging for the four groups of test unit assemblies, a computer monitoring program sends parameter request commands of the swinging speed, the swinging angle and the rotating speed of the servo motor in the detection process, meanwhile real-time detection is carried out by the computer monitoring program on the four groups of paired angular contact ball bearings in the four groups of test unit assemblies according to set detection contents in advance, and scientific, real and reliable monitoring bases are provided for evaluation of dynamic simulation performance or the service life of the angular contact ball bearings in a meteorological satellite.
Owner:LUOYANG BEARING RES INST CO LTD

Smelting process for efficient and energy-saving regenerated lead

The invention discloses a smelting process for efficient and energy-saving regenerated lead. The smelting process for the efficient and energy-saving regenerated lead is characterized by comprising the following steps: step S1, preparation for a lead raw material for smelting; step S2, treatment for a lead paste; step S3, forming for the lead smelting raw material; step S4, smelting treatment; andstep S5, by-product aftertreatment. The invention further discloses the efficient and energy-saving regenerated lead prepared according to the smelting process for the efficient and energy-saving regenerated lead. The smelting process for the efficient and energy-saving regenerated lead is capable of efficiently, rapidly and safely smelting lead scraps and wastes into the regenerated lead, so that resource recycling is realized, waste is turned into wealth, and the problems of low metal recovery rate and high lead content of slag in an existing smelting process for regenerated lead, and environment pollution caused by the generation of lots of smoke containing lead, sulfur dioxide and acid mist, are solved; and the smelting process for the efficient and energy-saving regenerated lead hasthe advantages of being high in lead direct-recovery rate, comprehensive recovery rate and labor productivity, low in precious metal loss, and high in economic value, ecological value and social value.
Owner:骆驼集团(安徽)再生资源有限公司

Traditional Chinese medicine formula for treating hair loss and turning white hair into black hair and preparation method thereof

The invention discloses a traditional Chinese medicine formula for reducing hair loss and turning white hair into black hair by adjusting circulating metabolism and nutrient supply of the scalp and a preparation method thereof. The formula comprises fructus lycii, semen cuscutae, fructus rubi, fructus schizandrae, semen plantaginis, radix ginseng, rhizoma atractylodis macrocephalae, poria cocos, licorice root, radix angelicae sinensis, rhizoma ligusticum wallichii, radix rehmanniae preparata, radix paeoniae alba, radix salviae miltiorrhizae, flos carthami, peach kernels, lignum sappan, rhizoma gastrodiae, radix saposhnikoviae, caulis polygoni multiflori, mulberry leaves, mint, radix plygoni multiflori, caulis lonicerae, cortex moutan, cacumen biotae, cortex lycii radicis and radix scrophulariae. By using the formula, while the effects of replenishing vital essence and blood, expelling wind evil, dissipating blood stasis and clearing away heat are achieved, the blood circulation can be promoted to dredge the meridians, nutrients are replenished to hair roots, and the blood microcirculation of the head is adjusted. The materials are selected according to the formula, an extraction solution is prepared and directly applied to the hair, or the extraction solution prepared by means of the formula serves as a main raw material to be prepared into shampoo or hair-nourishing cream, through transdermal medicine administration, the white hair can be quickly turned into the black hair, and the symptoms of hair loss and dryness can be effectively eliminated; moreover, no toxic or side effect is caused to the human body.
Owner:深圳市水木生物技术有限公司

Geomembrane for soil remediation engineering and preparation method of geomembrane

The invention discloses a geomembrane for soil remediation engineering. The geomembrane is characterized by comprising a high-density polyethylene membrane core layer, and a weather-proof impermeablelayer A and a weather-proof impermeable layer B which are respectively positioned on the upper surface and the lower surface of the high-density polyethylene membrane core layer and are independent from each other; the high-density polyethylene film core layer and the weather-proof impermeable layer A as well as the high-density polyethylene film core layer and the weather-proof impermeable layerB are bonded by radiation grafted adhesive film layers independently; and the weather-proof impermeable layer A and the weather-proof impermeable layer B are the same in preparation raw materials andpreparation method, and are both prepared from modified 4,4'-diacyl chloride diphenyl ether/4,4'-diaminobenzenesulfonylaniline polycondensate. The invention further discloses a preparation method of the geomembrane for soil remediation engineering. The geomembrane for soil remediation engineering disclosed by the invention is good in comprehensive performance, good in weather resistance, high-temperature resistance and corrosion resistance, and excellent in impermeability, mechanical property, antistatic property and flame retardance.
Owner:王萍

Solar tracking device and control method

The invention relates to a solar tracking device and a control method. The solar tracking device is provided with a base and a motor fixed on the base through a bolt, a support is fixedly connected to an output shaft of the motor, a solar panel is arranged on the support in a supporting mode, the bottom edge of the solar panel is in contact connection with the base through balls, the solar tracking device further comprises a controller for controlling the motor to work, the signal input end of the controller is connected with an output electrode of the solar panel through a wire, the power output end of the controller is connected with the power input end of the motor through a power line, and the control signal output end of the controller is connected with the control signal input end of the motor through a signal line. The control method includes the steps of conducting angle adjustment according to the output power of the solar panel, and controlling sunlight to perpendicularly irradiate the solar panel always. According to the solar tracking device and the control method, the solar power generation rate can be improved, more than 20% of power can be generated compared with solar cells at the fixed positions, a system is simple and easy to achieve, convenience is brought to use, the performance cost ratio is high, and the electric power cost of remote areas, power shortage areas and temporary power utilization conditions can be effectively reduced.
Owner:TIANJIN YUANMINGSHENG TECH

Method and system for drying molding of viscous material

The invention relates to a method and a system for the drying molding of a viscous material, which belong to the technical field of the drying molding of the viscous material. In the invention, a wind outlet of high-temperature wind-supplying equipment is connected with a wind inlet at a high-temperature pre-drying part of a drying-molding system, and a hot-wind flow which flows out of a wind outlet of the high-temperature pre-drying part is sent to a wind inlet at the lower part of a vibrating flow-mixing dryer through a fan; and the inner part of the vibrating flow-mixing dryer is provided with a plurality of vibrating flow-mixing beds, the vibrating flow-mixing beds are used for the vibration and the flow mixing of the viscous material which is sent through a gas-locking material-supplying slot and is to be molded through drying, and the sufficient flow mixing of the material and the introduced hot-wind flow is carried out in the falling process to obtain a flow-mixing drying material. Hereafter, the obtained flow-mixing drying material is transported onto discharged-material transporting equipment, the discharged-material transporting equipment is used for transporting the flow-mixing drying material onto molding equipment, and the molding equipment is used for molding the flow-mixing drying material. Through the method and the system, the components and the quality of the viscous material can be ensured not to be changed, and the drying effect is improved.
Owner:TANGSHAN SHENZHOU MFG

Sealed current generator with salt bridge structure

The invention relates to a sealed chemical current generator, and specially, relates to a storage battery device which adopts a salt bridge structure and can be used repeatedly through charging. The sealed chemical current generator with a salt bridge structure comprises twenty-seven parts of a housing base, a leakproof pressure plate, a head cover, a handle bolt, a cambered handle, a nut, a liquid discharge mouth a stop washer, a reversing dial wheel, a liquid discharge core shaft, a rotary valve gland, a rotary valve core, a rotary valve magnetic block, a positive electrode plate, an agar salt bridge structure, a leakproof washer, a negative electrode plate and the like. The twenty-seven parts compose a substrate module, a liquid discharge module and an electrode module. The sealed chemical current generator with a salt bridge structure can overcome the defects that a current produced by the existing known battery device is not stable and service time is short, has the characteristics of strong efficiency, pure current, stable running, and favorable reliability and durability, can be utilized widely for the fields of mines, transportation, offices, armies, countries and the like, meets requirements of utilization in disaster resistance and prevention, field emergency, field irrigation, wireless location and the like, and has a wide market space, a greatly high economic value added and a good social application value.
Owner:郑小玲
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