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114results about How to "Fast expansion" patented technology

Special liquid rooting fertilizer for vegetables as well as preparation method and application of special liquid rooting fertilizer

The invention discloses a special liquid rooting fertilizer for vegetables as well as a preparation method and an application of the special liquid rooting fertilizer. The rooting fertilizer consists of the following components in parts by mass: 100-150 parts of potassium nitrate, 100-150 parts of urea, 100-150 parts of potassium dihydrogen phosphate, 40-80 parts of fulvic acid, 10-50 parts of molasses, 10-50 parts of calcium ammonium nitrate, 10-50 parts of composite amino acid solution, 5-10 parts of ethylene diamine tetraacetic acid (EDTA) iron, 5-10 parts of ethylene diamine tetraacetic acid (EDTA) zinc, 5-10 parts of boric acid, 5-10 parts of sodium alginate, 5-10 parts of alpha-pimacol and 500-800 parts of water. The rooting fertilizer disclosed by the invention, through mutual matching and combined action of various components and contents, can achieve a remarkable rooting effect, and is simple and convenient to use, and is a product which is remarkable in effect on promoting root development of the transplanted vegetables.
Owner:SOUTH CHINA AGRI UNIV

Gas dispenser and gas station composed of the same

A gas dispenser is technically characterized in that a PLC firstly collects the pressure value of a pressure sensor in a gas dispersion gun, namely the pressure value in a vehicular gas cylinder. Then the pressure value is added with a preset value, wherein 0<the preset value <20. The summation is compared with the pressure value of each pressure sensor under a plurality of gas cylinder openings. The valve corresponding with the pressure value which is most approximative to and larger than the summation is opened for dispensing the gas through pressure difference. The steps are adopted again before balancing or after balancing. The steps are repeated until the value of the pressure sensor in the gas dispersion gun is the rated pressure value of the vehicular gas cylinder, wherein the rated pressure value is smaller than or equal to 20MPa. Then the valve is closed and the gas dispensation is finished. The gas station of the invention is composed of a plurality of gas cylinders and gas dispensers. The gas station is technically characterized in that the plurality of gas cylinders are used circularly for providing the high-pressure gas for satisfying the using amount of continuous gas dispensation of a single gun or a plurality of guns to the vehicular gas cylinder. The invention changes the technical route of prior gas substation. The matching of large-scale power devices of compressor and hydraulic pump is not required. The gas dispenser has no mechanical wear and extraordinarily low current consumption. The gas dispenser of the invention is the developing direction of the future.
Owner:沈军

Secondary gas filling station

The invention relates to a brand-new branch gas station, only consisting of a gas adding machine, a priority sequence controller and a plurality of gas storage devices. The branch gas station has the technical characteristics that each gas storage device is composed of a plurality of gas tanks which are filled with high pressure compressed natural gas (CNG) of 25 MPa, the gas storage devices alternatively and cyclically provide high pressure CNG to form alternate recycle high pressure technology, solving the problem that the gas storage devices need a compressor or a hydraulic pump sell the remaining gas by pressurization, saving the massive equipment investment such as compressor, hydraulic pump, intra-station gas tank group and the like and easily standardizing the three major components: the gas adding machine, the priority sequence controller and the gas storage devices, being free from daily consumption such as power supply, mechanical wear and the like; in addition, the branch gas station is matched with a major gas station and pursues the technical road featuring L-CNG and is easily and rapidly replicated in cities throughout the country, thus enjoying the possibility of changing the backward situation at home where for the past dozens of years, CNG stations are hard to be integrated into a complete sales network.
Owner:沈军

Method for determining region turning point of titanium alloy fatigue crack growth rate curve Paris

The invention belongs to the technical field of material fatigue crack growth behavior analysis, and provides a method for determining a region turning point of a titanium alloy fatigue crack growth rate curve Paris. The method determines the crack growth length during change of a fatigue crack growth mechanism according to the changes of crack growth behavior and fracture mode shown by micro characteristics of the fracture; and solving the stress intensity factors and the fatigue crack growth rate corresponding to the crack propagation length, so as to determine the turning point position of the fatigue crack growth rate curve Paris. The invention has full scientific basis and high accuracy, can satisfy material performance evaluation and damage tolerance design by designers and users, and is beneficial to the application of modern engineering.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS

Compound concrete expanding agent

The invention discloses a compound concrete expanding agent. The compound concrete expanding agent is prepared by using the following components in parts by weight: 15 to 20 parts of calcium aluminosilicate, 25 to 30 parts of calcium sulphoaluminate, 20 to 30 parts of sulfur fixation waste residue, 10 to 20 parts of red mud, 10 to 15 parts of lithium slag, 4 to 8 parts of modified calcium oxide, 3 to 6 parts of magnesium oxide, 5 to 8 parts of methyl sodium silicate, 0.1 to 0.3 part of azodicarbonamide, 0.4 to 0.7 part of sodium tripolyphosphate, 2 to 4 parts of lauryl sodium sulfate, 0.3 to 0.6 part of ethylene-acrylic acid copolymer, 0.7 to 0.9 part of polycarboxylate superplasticizer and 0.5 to 0.7 part of nano calcium carbonate. The compound concrete expanding agent has the advantages of high strength, good compensation capability, calcium oxide reaction regulation and the like, and is a concrete additive which has a great development prospect.
Owner:GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD

Elastic skin expander and skin traction system and hook rod fixing system thereof

PendingCN104826219AAvoid tearingAvoid tearing, too small will lead to slow stretching and other disadvantagesSurgeryDilatorsEngineeringRead through
The invention relates to an elastic skin expander, a skin traction system of the elastic skin expander and a hook rod fixing system of the elastic skin expander. The elastic skin expander is clinically applied to the orthopedics department and the plastic surgery department and can is adjustable in pressure. The hook rod fixing system comprises an adjusting component and a fixing hook device, wherein the adjusting component comprises a screwed rod, a wheel-fixing nut, a pressure-adjusting component, a pressure-adjusting spring, a slide casing pipe and a fixing nut; the pressure of the pressure-adjusting component applied to the pressure-adjusting spring is read through a slide casing pipe pressure scale meter under the matching between the pressure-adjusting component, the pressure-adjusting spring and the slide casing pipe; the fixing hook device is arranged between the slide casing pipe and the fixing nut and comprises a body part and a hook part which are connected through screw threads or connected in a fastening way or integrally molded.
Owner:宋若怡

Rapid dilatation method for RAID 5 (redundant array of independent disks)

The invention discloses a rapid dilatation method for an RAID 5 (redundant array of independent disks). The rapid dilatation method comprises the following steps: a strip group size SS, a dilatation read unit size RU, a dilatation write unit size WU and auxiliary variables Y and St are obtained; a current dilatation window W_no is initialized to be 0; the offset w_off in the current dilatation window is initialized to be 0; a migration record set required for dilatation is set to be empty; a current disk counter d is initialized to be 0; a strip number s is obtained through s=w_no*Wsize+w_off, and the offset in the strip group is obtained through s_off=s%SS; an initial strip number Rb of a current disk dilatation read unit is obtained through Rb=d*St, and an end strip number Re is obtained through Re=Rb+RU-1; whether a strip corresponding to the strip number s exists between the initial strip number and the end strip number of the dilatation read unit of the strip group or not is judged, if not, whether d=n-1 exists or not is judged, if so, whether w_off=Wsize-1 or s=v-1 exists or not is judged, if so, a corresponding strip unit is read from a disk in the RAID 5 before dilatation and is then written into the corresponding newly-added disk. With the rapid dilatation method, the performance and storage efficiency of the array after dilatation are improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Rapidly-exploring random tree-based planning method for route of unmanned aerial vehicle

The invention relates to a rapidly-exploring random tree-based planning method for the route of an unmanned aerial vehicle, belonging to the technical field of unmanned aerial vehicles. Compared withthe prior art, the method is mainly characterized in that a random point is used as a newly-added point to replace a newly-added point generated with fixed step length in a traditional method, and a local path is closer to an obstacle by creating a parent node for the newly-added node. According to the scheme, the random point is used as the newly-added point to replace the newly-added point generated with fixed step length in the traditional method, so the exploring speed of a random tree is increased to a great extent, the constraint strength of the dimensionality and size of an environmenton a planning algorithm is reduced, and the method can better adapt to a three-dimensional scene where the unmanned aerial vehicle works; and by creating the parent node for the newly-added node, thelocal path is closer to the obstacle, so the cost of adding the newly-added node to the random tree and then to a root node is reduced, and the speed of generating the track conforming to the unmannedaerial vehicle is increased.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Solvent-assisted horizontal well interwell communication method

The invention provides a solvent-assisted horizontal well interwell communication method, which comprises steps: S1, a first organic solvent is injected to a steam injection well and a production well respectively, and shut-in immersion is carried out on the steam injection well ; S2, the first organic solvent in the production well is heated to enable the first organic solvent to be dissolved and diffused towards crude oil, a solvent cavity is formed, and the crude oil enters the solvent cavity and is diffused to the production well; S3, depressurizing stoping is carried out on the production well; S4, the first organic solvent is complementarily injected to the production well again; and S5, steps from S2 to S4 are repeated, and the solvent cavity is expanded continuously until the steam injection well and the production well are communicated. Advantages of gravity drainage of the horizontal wells are fully made use of, the horizontal section uniformly producing degree is improved, demands on the drilling technology are low, water consumption is little, energy consumption is little, and emission is little.
Owner:PETROCHINA CO LTD

Automobile braking air chamber rubber diaphragm sizing material formula taking butadiene-styrene rubber as main sizing material

The invention relates to an automobile braking air chamber rubber diaphragm sizing material formula taking butadiene-styrene rubber as a main sizing material. The formula comprises the following raw materials in parts by weight: 55-100 parts of styrene-butadiene rubber, 0-30 parts of natural rubber, 0-25 parts of cis-butadiene rubber, 0.3-2.5 parts of a vulcanizing agent, 1.0-3.5 parts of an accelerating agent, 3-5 parts of zinc oxide or a substitute, 1-3 parts of stearic acid, 2-4 parts of an anti-ageing agent, 0.5-1.5 parts of a demolding agent, 0-1 part of a dispersing agent FL, 0-5 parts of an adhesive RC or a substitute, 50-100 parts of carbon black and 0-25 parts of a softening and plasticizing agent. The formula has the beneficial effects that: the styrene-butadiene rubber and a small amount of natural rubber are used together, and a vulcanizing system is adjusted correspondingly, so that the problems of high compressive permanent deformation caused by the adoption of butadiene-styrene rubber as a main body sizing material, over high crack expanding speed of flex cracking, low bonding performance, low tensile strength, insufficient product service life caused by frequent insufficient load pressure on the product, and the like can be solved.
Owner:程旻

Concrete expanding agent

The invention discloses a concrete expanding agent. The concrete expanding agent is prepared from, by weight, 10-15 parts of calcium silicoaluminate, 20-30 parts of calcium sulphoaluminate, 5-9 parts of ferric sulfate, 20-25 parts of sulfur-fixing waste residues, 15-20 parts of red mud, 6-8 parts of modified calcium oxide, 4-6 parts of magnesium oxide, 4-8 parts of sodium methyl silicate, 3-5 parts of triethanolamine, 0.1-0.3 part of azodicarbonamide, 0.5-0.7 part of sodium gluconate, 2-4 parts of sodium laurylsulfate, 0.4-0.6 part of polyethylene glycol, 1-3 parts of polycarboxylate superplasticizer, 2-6 parts of modified pyrophillite powder and 1-3 parts of nano calcium carbonate. The concrete expanding agent has the advantages of being high in strength, good in compensation capability, capable of regulating and controlling a calcium oxide reaction and the like and is a concrete additive having the development prospect.
Owner:GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD

Seven-freedom-degree mechanical arm control method and system based on analytical solution

ActiveCN109397292APath planning results are smoothImprove stabilityProgramme-controlled manipulatorAngular degreesEngineering
The invention discloses a seven-freedom-degree mechanical arm control method and system based on analytical solution. The system comprises a seven-freedom-degree mechanical arm and a control module; the seven-freedom-degree mechanical arm is in communication connection with the control module; axes of three adjacent joint motors in the seven-freedom-degree mechanical arm are crossed on the point,axes of two adjacent motor joints are perpendicular, the control module is used for carrying out inverse kinematics solution on the seven-freedom-degree mechanical arm based on the analytical solution, the joint angle of each joint motor in the seven-freedom-degree mechanical arm is obtained, on the basis of the joint angle, path planning is carried out, multiple path points from the starting point of the seven-freedom-degree mechanical arm to the target point are obtained, interpolation calculation is carried among the multiple path points, the motion track of the seven-freedom-degree mechanical arm is obtained, each joint motor is subjected to trajectory tracking, and motion of the seven-freedom-degree mechanical arm is controlled in real time. The solution speed is high, and the smoothdegree of path planning by the multi-freedom-degree mechanical arm in the complex environment can be improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Fireproof cooling hydrogel and preparation method thereof

The invention relates to the fields of manufacturing and application of heat-resistant, heat-insulating, flame-retardant and high-temperature expansion materials, specifically to a hydrogel with fireproof and cooling functions and a preparation method thereof. The hydrogel comprises the following components in parts by mass: 0.05-20 parts of a hydrogel thickening agent, 5-35 parts of a freezing point depressant, 1-30 parts of an expanded foam material, 1-15 parts of an expanded flame retardant, 0.01-1 part of a foaming agent, 1-15 parts of a gas generating agent and 0.01-1 part of a bactericide. The hydrogel provided by the invention has the following innovations: when the hydrogel directly acts on the surface of a comburent, the hydrogel can be adhered to the surface of the comburent; meanwhile, foams can be generated on the surface of the comburent and contain water, so the water can be sealed in the foams to continuously exert cooling and fire extinguishing effects; after the wateris dried, an expansion flame-retardant layer can be formed to provide continuous heat-insulation and flame-retardant functions; and the functions of fire extinguishing, cooling, heat insulation and fire reburning prevention are achieved.
Owner:THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA

Real-time extension method and system of key vocabularies and computer erasable recording medium thereof

The invention discloses real-time extension method and system of key vocabularies and a computer erasable recording medium thereof. The method comprises the following steps of: respectively carrying out data search on a plurality of search engines according to a queried vocabulary; subsequently, acquiring a plurality of document fragments relevant to the queried vocabulary respectively by the search engines; analyzing each document fragment so as to establish a relevant vocabulary list, wherein each document fragment lists a plurality of corresponding key vocabularies; subsequently, carrying out a relevant computing step according to a corresponding position relation between each key vocabulary corresponding to each document fragment and the queried vocabulary so as to respectively assign a relevant value to each key vocabulary; subsequently, carrying out a semanteme combining step and calculating the relevant value of each key vocabulary with the same semanteme in the file fragment to form a relevant pointer; and finally, determining part of key vocabularies to form a key vocabulary set of the queried vocabulary.
Owner:INSTITUTE FOR INFORMATION INDUSTRY

Radiation expanding type make-up drum

A radiation expanding type make-up drum for forming the blank of half steel wire type meridian tyre is composed of the push rod connected to drive cylinder, mainshaft with front and back guide seats, slide block, drum block installed on said slide block, and magnetic blocks installed in said drum block.
Owner:GREATOO INTELLIGENT EQUIP INC

Steel pipe installing and expanding equipment with high-temperature heating and remodeling functions

InactiveCN104588520AThere will be no phenomenon of being stuck in the steel pipeFast expansionShaping toolsCouplingArchitectural engineering
The invention discloses steel pipe installing and expanding equipment with high-temperature heating and remodeling functions. The equipment comprises a base. The base is provided with a baffle, a transition rail, a rotating clamping device, a guide rail and a telescopic cylinder in sequence from left to right. A sliding block is movably connected to the guide rail. One end of the sliding block is connected with the output end of the telescopic cylinder. A number one motor is fixedly connected to the sliding block. An output shaft of the number one motor is connected with an expansion die through a coupler. A steel pipe is fixedly connected to the rotating clamping device and a clamping plate. The number one motor and the telescopic cylinder are matched to enable the expansion die to rotate while advancing, and the expansion speed of the steel pipe is increased; similarly, the phenomenon that the expansion die gets stuck in the steel pipe is avoided, the steel pipe rotates reversely under driving of a number two motor, and a spray gun is matched, so that the part, to be expanded, of the steel pipe is heated, the crystal structure in the part, to be expanded, of the steel pipe is changed, expanding is easier, and burst of the steel pipe is avoided.
Owner:杜玉华

Static breaking anti-punching material, preparation method and use method thereof

The present invention discloses a static breaking anti-punching material, which is prepared from the following raw materials by weight: 35-45 parts of sulphoaluminate cement, 0.05-0.15 part of citric acid, 20-35 parts of gypsum, 10-25 parts of lime, 1-3 parts of sodium hydroxide, and 1-15 parts of ammonium nitrate. The preparation method comprises: grinding the sulphoaluminate cement to achieve 350-400 m<2> / k, uniformly mixing the grinded sulphoaluminate cement and the citric acid, respectively grinding the lime and the gypsum to achieve 350-400 m<2> / kg, and uniformly mixing the sulphoaluminate cement, the citric acid, the sodium hydroxide and the ammonium nitrate, wherein the obtained material is uniformly stirred according to a water cement ratio of (0.8-1.0):1 and then the stirred material is injected into the drilling port position. According to the present invention, the material is subjected to rapid condensation hardening and expansion, and the positive pressure is generated on the drilling wall so as to increase the friction between the hardening body of the material and the drilling wall, and the obstruction effect is generated for the punching of the static breaking agent in the drilling hole so as to provide the anti-punching effect.
Owner:HENAN INST OF ENG

Data center network structure and routing method thereof

The invention discloses a data center network structure and a routing method thereof, and belongs to the field of computers. The data center network structure comprises k layers of networks, wherein k>1 and k is an integer. When k> / =2, the kth layer of network comprises bn (k-1)th layers of networks and n(bn)k-2 sets of the kth layer switches. Each set of the kth layer switches comprises b the kth layer switches. One matrix of bn rows and n(bn)k-2 columns is formed by servers in the bn (k-1)th layer networks. The bn servers of each column of the matrix are correspondingly connected with one set of the kth layer switches. The first to the kth layers switches are n-port switches, wherein 2n> / =b>1 and b is the integer. The kth layer network is formed by the bn(b>1) (k-1)th layer networks, and the number of the servers is increased by bn times of the original when one layer of network is additionally arranged by a data center network so that expansion speed is ensured to be rapid, and great cost caused by high price of application of multiport switches can be avoided.
Owner:HONOR DEVICE CO LTD

Method for heating shrinkable tubes and shrinkable tube expanding system using same

The invention provides a method for heating shrinkable tubes. The shrinkable tubes are heated by a heating furnace; a through hole is formed in the heating furnace; and at least two shrinkable tubes penetrate through the through hole and are heated in the heating furnace. As the heat energy absorbed by the shrinkable tubes is extremely little, the heat energy loss of the heating furnace is mainly the heat energy dissipated from each heating furnace to the outside and is basically not changed when used for heating two shrinkage tubes by the heating furnace compared with that required for heating one shrinkage tube by the heating furnace, and more than two shrinkage tubes are heated by the heating furnace, the method for heating the shrinkable tubes can ensure that the heating furnace saves nearly more than half of the heat energy. The invention also provides a shrinkable tube expanding system using the method for heating the shrinkable tubes, and the system comprises a conveying device, a heating furnace, an expanding device and a traction device, and adopts the method for heating the shrinkage tubes by heating at least two shrinkage tubes in the heating furnace while the two shrinkage tubes penetrate through the through holes, so that the heating furnace can save nearly half of the heat energy, the expanding speed is high and the efficiency is high.
Owner:SHENZHEN WOER HEAT SHRINKABLE MATERIAL

Method for carrying out extraction, inspection and content determination on 5-hydroxytryptamine in sea buckthorn

The invention discloses a method for carrying out extraction, inspection and content determination on 5-hydroxytryptamine in sea buckthorn and relates to the field of extraction, inspection and content determination of indole derivatives in the sea buckthorn. Sea buckthorn fruit peels and fruit branches are taken as a raw material; the raw material is smashed and screened; absolute ethyl alcohol is added; ultrasonic microwave extraction is carried out; centrifugal filtration is carried out; the raw material is concentrated to 1 / 4; methanol is added for dissolution; normal hexane is added, andmixing, extraction and concentration are carried out; ethyl acetate is added for dissolution; after sufficient dissolution is carried out, ultrapure water is added; liquid separation is carried out; ethyl acetate phase is obtained and is concentrated to dry; little absolute ethyl alcohol is added for dissolution; volume is fixed at 50mL; content is determinated through TLC reflection scanning; molecular weight information of samples is determinated through utilization of a mass spectrometer; functional groups are detected through infrared; optical rotation and specific rotation are determinated through utilization of a polarimeter; evaporation and crystallization are carried out; and a melting point is determinated. According to the method provided by the invention, time and labor are reduced; a separation effect is relatively good; purity is high; a result is accurate; and the method for carrying out the extraction, inspection and content determination is simple in operation and highin efficiency.
Owner:LULIANG UNIV

Construction method for broaching-brushing of winze

The invention discloses a construction method for broaching-brushing of a winze. The construction method comprises the following steps that (1) guiding holes are vertically formed along the center line of the winze; (2) through a counter-driller, the broaching area around the guiding hole is subjected to broaching from bottom to top; and (3) after broaching, a blasthole is formed in the broaching-brushing area around the broaching area, the blasthole is subjected to blasting from bottom to top so as to conduct broaching on the broaching-brushing area, and the broaching-brushing area is subjected to broaching-brushing to the well wall of the winze. Through the construction method, the problems that the broaching-brushing speed is low and the winze is blocked are solved, the construction safety is ensured, and the construction cost is reduced.
Owner:CHINA HUAYE GROUP

Method for pre-expanding cold-shrinking cable accessory

The invention aims to provide a method for pre-expanding a cold-shrinking cable accessory, which comprises the following steps: expanding the cold-shrinking cable accessory by using a steel wire tensioned between two corresponding expansion discs; sleeving a support tube on an expansion bar of which one end is provided with an expansion cone head, and sleeving an end cap at the other end of the expansion bar; pushing the end cap through a cylinder piston so as to forward push the expansion bar and the support tube together along the axial direction of the cable accessory till the expansion cone head of the expansion bar is fully pushed out of the other end of the cable accessory; and finally, removing the end cap, the expansion bar and the steel wire in turn, and shrinking and clasping the cable accessory outside the support tube so as to finish pre-expanding. The cable accessory is expanded by adopting the steel wire, the steel wire material is easily obtained and does not need to bepolished, the steel wire is cheaper than a steel bar, and the steel wire for expanding the cable accessory can be pulled out by using mechanical operation, so the labor intensity of operators is lightened, the expanding speed is high and the work efficiency is improved; and the surface of the steel wire has good degree of finish, so the steel wire has little damage to the inner wall of the cold-shrinking cable accessory, ensures the safety of the cable accessory and improves the quality of a product.
Owner:七星电气股份有限公司

Method for pre-expanding cold-shrinking cable accessory

The invention aims to provide a method for pre-expanding a cold-shrinking cable accessory, which comprises the following steps: expanding the cold-shrinking cable accessory by using a steel wire tensioned between two corresponding expansion discs; sleeving a support tube on an expansion bar of which one end is provided with an expansion cone head, and sleeving an end cap at the other end of the expansion bar; pushing the end cap through a cylinder piston so as to forward push the expansion bar and the support tube together along the axial direction of the cable accessory till the expansion cone head of the expansion bar is fully pushed out of the other end of the cable accessory; and finally, removing the end cap, the expansion bar and the steel wire in turn, and shrinking and clasping the cable accessory outside the support tube so as to finish pre-expanding. The cable accessory is expanded by adopting the steel wire, the steel wire material is easily obtained and does not need to be polished, the steel wire is cheaper than a steel bar, and the steel wire for expanding the cable accessory can be pulled out by using mechanical operation, so the labor intensity of operators is lightened, the expanding speed is high and the work efficiency is improved; and the surface of the steel wire has good degree of finish, so the steel wire has little damage to the inner wall of the cold-shrinking cable accessory, ensures the safety of the cable accessory and improves the quality of a product.
Owner:七星电气股份有限公司

Low resistance high expansion semi-conductive single-sided waterproof manufacture method

The invention discloses a low resistance high expansion semi-conductive single-sided waterproof belt manufacture method, relating to the manufacture method of the waterproof belt. The low resistance high expansion semi-conductive single-sided waterproof belt consists of a base material layer, a semi-conductive material layer and a semi-conductive water absorption material layer. The low resistance high expansion semi-conductive single-sided waterproof belt manufacture method comprises steps of manufacturing a base material, applying a semi-conductive glue and semi-conductive resistance water powder onto the base material, drying, slitting and packaging. The product manufactured by the method is fast in the expansion speed, good in electric performance, simple in the production technology, stable in the technology performance and strong in practicability. The invention is applicable to the cable, improves watertight property of the insulation layer, the inner shielding layer and the outer shielding layer and is good in resisting water.
Owner:沈阳天荣电缆材料有限公司

Capsule-type expansion body heated based on ground temperature and method for plugging formation leakage and improving bearing capability of formation

The invention discloses a method for plugging formation leakage and improving bearing capability of a formation based on the capsule-type expansion body heated at ground temperature. The capsule-typeexpansion body consists of a capsule-type expansion body shell and a liquid or solid temperature control expansion material, enters a well circumference and formation cracks and holes far away from the body with drilling fluid circulation, is heated to a certain temperature range with the ground temperature, then quickly and remarkably expands, elastically deforms to self-adapt to plugging of various types of leaked formations and improve the bearing capability of the formations. The capsule-type expansion body is divided into a physical gasification type or chemical decomposition reaction type according to the expansion principle of the liquid or solid temperature control expansion material, is kept in a non-expanding state during relatively low-temperature ground transportation and in-shaft circulating flow, and has the advantages of quick and effective plugging, self adaptation, long distance, dismounting and the like when producing quick and remarkable volume expansion and pluggingformation leakage at physical and chemical reaction temperatures.
Owner:SOUTHWEST PETROLEUM UNIV

Seepage preventing construction structure and method

The invention discloses a seepage preventing construction structure and method. The seepage preventing construction structure comprises a soil foundation, a waterproof layer and a surface soil covering layer, all of which are sequentially arranged from bottom to top. The waterproof layer comprises a first seepage preventing layer, a soil solidification layer and a second seepage preventing layer, all of which are sequentially arranged from bottom to top. The waterproof layer is composed of three layers of structures including the two seepage preventing layers and one soil solidification layer, the seepage preventing effect is greatly improved, the osmotic coefficient is smaller than 10<-10> cm / s, and the soil solidification layer is formed by solidification of bentonite, a fiber material, soil and water. The bentonite has the beneficial effects of being high in water absorbing expansion rate, high in expansion speed, resistant to ageing and corrosion, and the like; through adding of the fiber material, the anti-bending capability of the soil solidification layer can be improved as well; according to the seepage preventing technology, the seepage preventing effect is good, the external force impact and deformation resisting capability is high, the compressive strength is larger than 20 MPa, and meanwhile large equipment and a large number of materials are not needed during construction. Construction is simple and efficient, cost is low, and the seepage preventing construction structure and method are suitable for being applied to channel seepage preventing, contaminated site risk control, road pavement and other fields with the high seepage preventing requirement.
Owner:HUATIAN ENG & TECH CORP MCC +1

Son-mother gas filling station

The invention relates to a son-mother gas filling station, which consists of a compressor or a low-temperature pump, a trailer cylinder and a gas filling machine. The son-mother gas filling station is technically characterized in that the compressor or the low-temperature pump increases outlet pressure to fill gas into the trailer cylinder, so that the pressure in the trailer cylinder is higher than the pressure in a vehicle cylinder, and the gas filling for the vehicle cylinder is completed through connection with the gas filling machine. The technical scheme greatly simplifies the technological flow, and is simple, efficient, energy-saving and safer. The terminal gas filling part of the son-mother gas filling station requires no power-driven power supply or transformer, thereby saving the labor and the cost of power consumption, and the gas filling terminal (son station) part can be easily constructed; the area directly occupied by the equipment is small, and the son station expanding speed is high; the investment in large-scale equipment such as a compressor leveling body, a hydraulic leveling body and the like is saved; the zero pollution and zero emission are realized; and the gas filling capability can be easily enhanced, and the invention avoids the problems of power consumption of the son station, mechanical wear and the like in the prior art. The gas filling terminal part of the son-mother gas filling station can fill gas into the vehicle cylinder in any place in a movable or fixed way.
Owner:沈军

Piping expanding bag

The invention discloses a piping expansive bag. The outline of technology project is that the piping expansive bag comprises waterproof plastic bag, outer-layer bag, inner-layer bag, guiding rope, dragging rope and water absorption expansive agent; the water absorption expansive agent is set in the inner-layer bag and the water absorption agent comprises attapulgite clay, bentonite, anhydrous plaster powder and high water-absorbing resin. When it is used the waterproof plastic bag is torn, floodwater enters into the inner-layer bag through the outer-layer bag of piping expansive bag. After the water absorption expansive agent in inner-layer bag meets water, the weight and the cubage increase more than 50 times gradually based on the original bag. Flat piping expansive bag becomes a cylinder piping expansive bag with cone-shape front end to jam leak or piping quickly. The piping expansive bag is suitable for jamming leak or piping in flood resisting, building construction.
Owner:许庆华

Foam pre-foaming machine

The invention relates to a foam pre-foaming machine. The foam pre-foaming machine comprises an exhaust pipe, a vacuumizing pipe and a feeding port formed on a vacuum barrel body; the vacuumizing pipe communicates with a vacuumizing machine; a lower end barrel opening of the vacuum barrel body is provided with an end cover which is internally provided with a steam cavity chamber; the steam cavity chamber communicates with a steam source; a steam partition plate is arranged above the steam cavity chamber; a plurality of communicating holes communicating the steam cavity chamber with the vacuum barrel body are formed in the plate face of the steam partition plate; the steam partition plate is connected with a driving mechanism which drives the steam partition plate to rotate; the vacuum barrel body comprises an inner barrel and an outer barrel; a heat-preserving cavity chamber and a steam heating cavity chamber are arranged between the inner barrel and the outer barrel; the steam heating cavity chamber communicates with the steam cavity chamber through a pipeline; further heating and heat preservation on the vacuum barrel body are achieved, and the foam expanding effect is further improved; after expanding is completed, exhausting is performed on the vacuum barrel body; and then the vacuumizing operation is performed on the vacuum barrel body through a vacuumizing device, and therefore the drying degree of expanding bead particles in the vacuum barrel body is guaranteed.
Owner:安徽斯威达建材科技有限公司

Sewage plant sludge bulking detection method based on robust adaptive canonical correlation analysis

The invention discloses a sewage plant sludge bulking detection method based on robust adaptive canonical correlation analysis. A robust adaptive canonical correlation analysis model fusing robust decomposition of a data matrix, canonical correlation analysis, reconstruction of a robust T2 detection graph and a robust SPE detection graph needs to be constructed. Online detection is conducted on the sludge bulking of a sewage plant through the constructed robust self-adaptive canonical correlation analysis model, specifically, data collected by the sewage plant is standardized, robust decomposition is conducted on the standardized data matrix, and robust decomposition mainly utilizes canonical correlation analysis and a constructed robust criterion function, a corresponding robust T2 detection graph and a corresponding robust SPE detection graph are constructed respectively by utilizing an obtained robust load matrix and a characteristic value matrix, and finally a robust self-adaptivecontrol line is constructed, thereby realizing effective monitoring of sludge bulking of the sewage plant. According to the invention, effective early warning can be performed on tiny faults in the initial stage of sludge bulking.
Owner:SOUTH CHINA UNIV OF TECH
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