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58results about How to "Reduce barrier" patented technology

Method and device for conducting and recycling subterranean heat with production casings

The invention relates to a method and device for conducting and recycling subterranean heat with production casings. The method comprises the following steps: previously selecting a discarded or idle or in-use well, respectively sealing the perforated pores at the well bottom and oil water layer by utilizing separators, closely connecting a heat radiator with the well mouth, vacuumizing the interior, and pressing a given amount of low boiling point medium or water to form a heat transfer unit for recycling subterranean heat with low-cost long-distance gravity assisted heat pipes. The low boiling point medium or water in the heat transfer unit vaporizes after absorbing subterranean heat, the vapor from latent heat of vaporization is continuously transferred to the heat radiator on the upper part, and the heat of the vapor from latent heat is transferred to a natural low-temperature liquid or temperature difference power generation module in the heat-storage energy-accumulation tank through the wall of the heat radiator, thereby recycling heat. The invention is used for solving the problems of high investment and difficulty in large-scale application in the application of subterranean heat, and greatly reduces the cost for utilizing subterranean heat.
Owner:大庆市三仁新能源科技开发有限公司

Slip vibration isolation support

The invention discloses a slip vibration isolation support which comprises an upper support and a lower support. The upper support is supported by the lower support, and interlayer surfaces are arranged between the upper support and the lower support; the upper support and the lower support are both filled with lead core rubber and internally provided with annular permanent magnets in a staggered mode, and the upper permanent magnet and the lower permanent magnet are both arranged to be close to the interlayer surfaces so as to provide sufficient magnetic induction intensity; the vibration support adopts aluminum plates as the interlyaer surfaces, outer sealing is conducted through annular steel tanks, and the interlayer surfaces are covered with polytetrafluoroethylene plates. Compared with a traditional vibration isolation support, the internally arranged magnet type vibration isolation support has the advantages of being small in abrasion, high in sensitivity, good in filtering property, high in energy consumption, small in impact effect, high in self reset capacity, capable of saving space, good in tensile property and the like, and important significance in solving the technical problems that deformation of the vibration isolation support of the area with high seismic intensity is too large, the impact effect is significant, and the tensile property is weak is achieved.
Owner:TONGJI UNIV

Composite water absorbent paper for absorbent product, preparation method and application of composite water absorbent paper

The invention provides composite water absorbent paper for an absorbent product. The composite water absorbent paper for the absorbent product comprises an upper isolation layer, macromolecular water absorbent resin, a high-fluffy nonwoven fabric and a lower isolation layer, wherein the macromolecular water absorbent resin comprises upper macromolecular water absorbent resin which is distributed between the upper isolation layer and the high-fluffy nonwoven fabric, and lower macromolecular water absorbent resin which is distributed between the high-fluffy nonwoven fabric and the lower isolation layer; the upper isolation layer, the upper macromolecular water absorbent resin, the high-fluffy nonwoven fabric, the lower macromolecular water absorbent resin and the lower isolation layer are combined together in a gluing or heat sealing manner; the composite water absorbent paper is characterized in that the particle size of the upper macromolecular water absorbent resin is different from that of the lower macromolecular water absorbent resin; the particle size of the lower macromolecular water absorbent resin is smaller than that of the upper macromolecular water absorbent resin. According to the composite water absorbent paper for the absorbent product, the absorption performance of the water absorbent paper can be remarkably improved; the utilization rate of macromolecules is improved; the production cost is reduced.
Owner:TIANJIN SINOSH NEW MATERIAL TECH

Integrated constant temperature heating plate

The present invention relates to an integrated constant temperature heating plate which comprises a heat conducting plate, a heating layer arranged at the back side of the heat conducting plate, and a heat insulation layer which coats the back side and two ends of the heating layer. The side of the heat conducting plate is provided with a bending plate, the bending plate and the heat conducting plate are arranged in a U-shaped way and are used for fitting the bottom surface of the heat insulation layer, phenomena of deformation and collapse caused by improper support and installation or gravity are not worried, the mechanical strength is improved, the heat shock resistance performance is good, the service life is prolonged, and the cost is reduced. A parallel heating mode of double conductive wires and double loops is used by the heating layer, the two groups of loops are provided with temperature controllers, the temperature differences of the temperature controllers are limited within 5 DEG C, thus an effect of stabilizing temperature is achieved, a constant temperature effect is achieved, at the same time the front surface of a heat conducting layer is provided with micro meshes, the uniform heat radiation effect of the heat conducting plate is effectively enhanced, the blocking of thermal energy by metal is reduced, and the human comfort is improved.
Owner:河南易珀尔科技有限公司

Environmentally-friendly wood-plastic integrated wallboard and production method thereof

The invention discloses an environmentally-friendly wood-plastic integrated wallboard and a production method thereof, belonging to the field of environmentally-friendly high-molecular materials. According to the invention, polyvinyl chloride resin and polychlorohexene resin are used as substrates; wood powder and calcium carbonate powder are used as fillers; polyethylene wax is used as a lubricant; stearic acid is used as a stabilizer; chlorinated polyethylene 135A is used as a toughness and impact modifier; foaming AC-02 is used as a foaming regulator; and macroporous resin, micron-sized carbon spheres and zeolite particles are compounded to form an adsorption purifying agent, so adsorption and desorption discharge channels for harmful gases are formed inside the integrated wallboard. According to the invention, zeolite particles, macroporous resin and micron-sized carbon spheres are added into the integrated wallboard to form the adsorption purifying agent, so the adsorption and desorption channels are formed inside the integrated wallboard; and thus, the internal structure of the wallboard is more abundant, the combination of macro-holes, small holes and micropores makes the porosity of the formed adsorbent larger, the channels for desorption and discharge of harmful gases from the integrated wallboard are increased, and the adsorption and discharge of harmful gases are more thorough and environment-friendlier.
Owner:辽宁新世界科技股份有限公司

Waste heat recovery efficient energy-saving stove system

The invention discloses a waste heat recovery efficient energy-saving stove system. The waste heat recovery efficient energy-saving stove system comprises a stove body. The stove body comprises a support, a combustion chamber, an ignition assembly and a smoke heat exchange assembly. The combustion chamber is mounted on the support in an embedded mode. The ignition assembly is mounted at the bottom of the combustion chamber. The combustion chamber is provided with an air inlet. The air inlet is matched with the ignition assembly and is used for providing oxygenating air for the ignition assembly. Vent holes are formed in the upper end of the combustion chamber and communicate with the smoke heat exchange assembly. The smoke heat exchange assembly comprises a smoke channel and heat conduction pipes, wherein the smoke channel and the heat conduction pipes communicate with the combustion chamber. The smoke channel 51 is arranged longitudinally and transfers heat to the heat conduction pipes. The heat conduction pipe is provided with a longitudinal heat conduction cavity matched with the smoke channel formed longitudinally. A heat conduction medium is introduced from the upper end of the heat conduction cavity and is led out of the lower end of the heat conduction cavity after being heated through the smoke channel from top to bottom. The combustion chamber is provided with a supporting port. The supporting port is used for supporting a cooker or a cover body and sealed with the cooker or the cover body. According to the waste heat recovery efficient energy-saving stove system, the efficient energy-saving stove system is capable of collecting heat energy of the combustion chamber, fully utilizing the heat energy produced by combustion in the combustion chamber and recovering smoke heat.
Owner:HANGZHOU SUPERCONDUCTING TECH CO LTD

Cross-modal commodity classification method and device, equipment, medium and product

The invention discloses a cross-modal commodity classification method and device, equipment, a medium and a product, and the method comprises the steps: obtaining an image-text splicing vector of a commodity object, and enabling the image-text splicing vector to be formed by splicing a picture coding vector of a commodity picture and a text coding vector of a commodity title; performing multi-level coding on the image-text splicing vector based on a multi-head attention mechanism, realizing first feature interaction of the image coding vector and the text coding vector, and obtaining a first image-text fusion vector; performing second feature interaction on the first image-text fusion vector and a label coding vector representing a commodity label of the commodity object in a preset category tree label structure based on a multi-head attention mechanism to obtain a second image-text fusion vector; and performing classification according to the second image-text fusion vector, and judging a classification label of the commodity object according to a classification result. The image-text fusion vector is obtained through deep interaction of the features of the multiple modes, classification is carried out according to the image-text fusion vector, and the classification accuracy can be improved.
Owner:GUANGZHOU HUADUO NETWORK TECH

Method and device for conducting and recycling subterranean heat with production casings

The invention relates to a method and device for conducting and recycling subterranean heat with production casings. The method comprises the following steps: previously selecting a discarded or idle or in-use well, respectively sealing the perforated pores at the well bottom and oil water layer by utilizing separators, closely connecting a heat radiator with the well mouth, vacuumizing the interior, and pressing a given amount of low boiling point medium or water to form a heat transfer unit for recycling subterranean heat with low-cost long-distance gravity assisted heat pipes. The low boiling point medium or water in the heat transfer unit vaporizes after absorbing subterranean heat, the vapor from latent heat of vaporization is continuously transferred to the heat radiator on the upper part, and the heat of the vapor from latent heat is transferred to a natural low-temperature liquid or temperature difference power generation module in the heat-storage energy-accumulation tank through the wall of the heat radiator, thereby recycling heat. The invention is used for solving the problems of high investment and difficulty in large-scale application in the application of subterranean heat, and greatly reduces the cost for utilizing subterranean heat.
Owner:大庆市三仁新能源科技开发有限公司

Antibacterial and antiviral mask and preparation method thereof

The invention provides an antibacterial and antiviral mask and a preparation method thereof. The antibacterial and antiviral mask sequentially comprises a barrier protective layer, an antibacterial and antiviral layer, a filter layer and a skin-friendly layer from outside to inside. Wherein the antibacterial and antiviral layer is a melt-blown non-woven fabric modified by nano cuprous oxide, and the nano cuprous oxide is loaded and fixed on a fiber surface layer of the melt-blown non-woven fabric through an in-situ reaction. The method specifically comprises the following steps: pretreating a melt-blown non-woven fabric, sequentially padding the pretreated melt-blown non-woven fabric in an alkaline solution, a copper source solution and a reduction solution, controlling the liquid carrying rate of the pretreated melt-blown non-woven fabric, finally putting the pretreated melt-blown non-woven fabric in a solvent reaction medium, and carrying out in-situ reaction in a high-temperature environment to obtain the nano-cuprous oxide. According to the antibacterial and antiviral mask, through the dual functions of the blocking protective layer and the antibacterial and antiviral layer, the effects of blocking germs, inhibiting bacteria and killing bacteria can be achieved in a short time, so that the mask has the long-acting antibacterial and antiviral functions; and the mask is good in washability, the antibacterial effect is not changed after the mask is continuously washed for 50 times, the practicability is high, and the requirements of the market on the mask function aspect are greatly met.
Owner:WUHAN TEXTILE UNIV

Improved hollow fiber nanofiltration membrane assembly

The invention provides an improved hollow fiber nanofiltration membrane assembly, which comprises a membrane shell and a flow guide type filter membrane element arranged in the membrane shell, whereinthe flow guide type filter membrane element comprises membrane filament units arranged in a liquid channel and used for filtering, flow guide plates for improving fluid distribution, separation chambers and fixing layers arranged at the two ends of the membrane shell, poured with a resin and used for fixing the membrane filament units and the flow guide plates. According to the invention, by improving water flow distribution in the assembly, separation chambers enable water flow to be forcibly separated in the membrane element at the water inlet sside and the water outlet side of the membraneaseembly to reduce the obstruction of the membrane element to the water flow, reduce the membrane element outlet pressure drop, avoid the damage to the membrane element due to water flow impact, andeffectively improve the water flow impact resistance of the nanofiltration membrane assembly on the premise of ensuring that the hardware of the flow guide type hollow fiber nanofiltration membrane system is not changed, so that the operation efficiency of the hollow fiber nanofiltration membrane is improved, wherein the rejection rate is improved, the water production flux is improved, the pressure loss of the membrane assembly is reduced, and the service life of the membrane assembly is prolonged.
Owner:TIANJIN MOTIMO MEMBRANE TECH

Cutting snow removing device based on large-pitch spiral line rotor

The invention discloses a cutting snow removing device based on a large-pitch spiral line rotor. The cutting snow removing device comprises a machine frame, wherein a snow pushing plate with an arc-shaped section is fixed on the machine frame; a first shaft is arranged between the snow pushing plate and the machine frame; one end of the first shaft is connected with a driving mechanism; the otherend of the first shaft penetrates through an elliptical through hole pre-formed in the snow pushing plate and is matched with a second shaft; a cutter is matched with the second shaft; the driving mechanism is sequentially used for driving the first shaft, the second shaft and the cutter; the cutter is used for rotating around the second shaft to make contact with and drive accumulated snow to penetrate through the through hole along the arc face of the snow pushing plate; the cutter in a large-pitch spiral line shape is configured to perform rotary motion; multi-frequency action is achieved in cooperation with a cutter support to cut accumulated snow, a multi-stage snow shoveling plate is adopted below to act on layered compacted ice and snow, the accumulated snow can be smoothly separated from the ground and enter a throwing device along the snow pushing plate, and the problems that an existing small civil snow removing machine is insufficient in cutting capacity and low in efficiency when coping with hard compacted accumulated snow are solved.
Owner:SHANDONG UNIV

A liquid-cooled pure electric vehicle lithium battery thermal management device

The invention discloses a liquid-cooled pure electric vehicle lithium battery heat management device, including a battery box, a battery box cover, a first heat pipe, a second heat pipe and a phase change material; the first heat pipe is evenly distributed in the battery box inside the body, and is fixedly connected with the bottom end of the battery case; the battery accommodation cavity is formed in the first heat conduction tube, and the first cooling channel is formed in the tube wall of the first heat conduction tube; the second heat conduction tube is arranged outside the first heat conduction tube, and is connected with the A second cooling channel is formed between the battery boxes; the second heat pipe is filled with phase change material. The present invention directly arranges the first cooling channel on the outside of the battery, and fills the phase change material outside the first cooling channel. On the one hand, it can first dissipate heat through the cooling liquid, and then transfer the heat to the phase change material, so that the device can quickly cool down. On the other hand, when the battery temperature is too high and the liquid cooling is turned on, the barrier between the battery and the cooling liquid can be reduced, the heat dissipation efficiency can be further improved, and the energy consumption can be reduced.
Owner:WUHAN UNIV OF TECH

Efficient wall plate cooler

The invention relates to an efficient wall plate cooler. The efficient wall plate cooler comprises a lower flange, coil pipes, a square barrel body, an upper flange, middle supporting plates, heat conduction cement gum and U-shaped hooks. The efficient wall plate cooler is characterized in that the square barrel body is connected with the upper flange and the lower flange to form a body structure;the plurality of middle supporting plates are arranged, and uniformly arranged in the square barrel body along the long edge of the square barrel body; the closely attached coil pipes are correspondingly arranged on the four wall plates on the outer side of the square barrel body; and the coil pipes and the wall plates of the square barrel body are fixed through the U-shaped hooks and then are sealed with the heat conduction cement gum. The efficient wall plate cooler has the beneficial effects that the outer wall coil pipes and the middle supporting plates are adopted to perform heat exchanging with high temperature solid materials at the same time, the heat conduction cement gum is arranged outside the coil pipes so that air obstruction can be reduced, and a heat transfer effect is enhanced; and the middle supporting plates are used for separating the solid materials, material heaping is prevented, good heat transfer can also be achieved, the purpose of efficient heat exchanging isachieved, the maintaining and service frequency and time are lowered, and the requirement of normal production can be met.
Owner:ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC

Fault fracture zone gravel and water discharging device used for tunnel construction

The invention relates to a fault fracture zone gravel and water discharging device used for tunnel construction. A structure of the device comprises a tunnel floor, a soil layer and gravel and water discharging devices, wherein a lower surface of the tunnel floor and an upper surface of the soil layer are laminated, lower ends of the gravel and water discharging devices are installed in the soil layer in an embedded mode, through water collecting pits, water flows ooze from fault fracture zones of a tunnel are collected, then water pumping pipes are used for discharging the water flows in thewater collecting pits to make ponding in the tunnel maintained in a controllable range, meanwhile, rotating pit bottom turntables and stone discharging belts on the bottoms of the water collecting pits are used for discharging and collecting gravel which falls into the water collecting pits along with the water flows to prevent accumulation of the gravel in the water collecting pits, and thus notonly is required capability of the water collecting pits maintained, but also barrier of the gravel to water pumping of the water pumping pipes is reduced, so that the water collecting pies have enough water discharging speed in stages with large water yields on rainy days.
Owner:北京城建中南土木工程集团有限公司

Signal amplification device convenient to fix and install for long-distance signal transmission

The invention relates to a signal amplification device convenient to fix and install for long-distance signal transmission, which comprises an end device and a binding mechanism, an end concave channel is formed in the end wall of the end device, a sealing cover is arranged at the top end of the end device, and sealing screws are arranged around the sealing cover in a penetrating manner. The beneficial effects of the invention are that: the method is suitable for large-scale production; the signal amplification device for long-distance signal transmission is convenient to fix and install; screw rod is rotated, the spiral force generated between the screw rod and the footstand can be well utilized; a reaction is carried out between the footstand and the stator plate; the direction of the stator plate is changed; the stator plates are expanded outwards at four corners of the footstand; at the moment, a user can firmly position the footstand through the fixing nodes on the four stator plates, the convenience and stability of the footstand in the using process are improved, the footstand can be well installed conveniently, and through relative sliding of the limiting columns, the moving process of the stator plates can be smoother and more stable, so that it is guaranteed that the footstand is safer to operate and control.
Owner:南京智慧基础设施技术研究院有限公司

Separated pressure-bearing clogging device for downhole pipe string and using method thereof

The invention discloses a separated pressure-bearing clogging device for a downhole pipe string and a using method thereof, and belongs to the technical field of oil and gas exploitation. According to the separated pressure-bearing clogging device for the downhole pipe string and the using method thereof, a downhole pipe string body is included, a pressure-bearing clogging device body is arranged in the downhole pipe string body, an overhead plunger block is arranged on the upper side of the pressure-bearing clogging device, a pressure-bearing interface groove is formed in the upper end of the pressure-bearing clogging device, and the inside of the pressure-bearing clogging device is improved, so that a valve core filter and a fulcrum fixing piece can be separated under the impact of the formation fluid to realize the setting action, reverse blocking formation fluid is prevented from entering the clogging device, damage to the valve core filter of the clogging device is reduced in the flowing process of the formation fluid in a fluid passage, and the service life of the clogging device is prolonged; and meanwhile, through the pressure on the valve core filter during reverse flowing of the formation fluid, particulate matter are reduced from being blocked between the valve core filter and a mandrel, so that the clogging device continuously maintains the separation effect.
Owner:中国石油天然气股份有限公司西南油气田分公司工程技术研究院
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