41results about How to "Decentralization" patented technology

The invention relates to technique for improving an electric heating element, in particular to nano far infrared negative ion carbon crystal conductive paper and a method for making the same. The conductive paper resolves the problems of the uneven heat generation, the existence of heat spot and the excessive temperature difference existing in prior electric heating products and is used for electric heating elements for anti-static electricity and making of heating electric hot plates. The conductive paper comprises the following components in percentage by weight: 70 to 96 percent of paper pulp, 2 to 20 percent of nano carbon fiber, 1 to 5 percent of nano far infrared negative ion powder and 1 to 5 percent of dispersing agent. In the invention, by using paper pulp, nano carbon fiber, nano far infrared negative ion powder and dispersing agent as materials and undergoing steps of pulping, pulp beating, pulp mixing, papermaking, drying and scrolling, etc., the conductive paper is made; in the process of pulp beating, the pulp mixing step is made; the pulp mixing step is as follows: nano carbon fiber and dispersing agent and nano far infrared negative ion powder are evenly added in the paper pulp. The invention possesses of functions of the emission of far infrared rays and the release of negative ions at the same time and can effectively and completely release electric charges, thereby having effects of purification and disinfection and making human bodies healthier.

The invention discloses a construction method for integrally and downward putting cofferdam ring beams by means of a continuous jack method. The construction method sequentially comprises: step one, installing a ring beam hanging system; step two, integrally uplifting ring beams and dismounting ring beam butt-joint platform bailey beams; step three, firstly putting the ring beams downward; step four, converting a ring beam system; and step five, secondarily putting lower-layer ring beams downward. A jack is continuously used for providing force for putting the ring beams downward, so that the demand for labor force is reduced, and temporarily organized large-scale labor force is avoided. In addition, corresponding cost is reduced, the ring beam splicing time on a cofferdam is shortened, and time is saved for tubular pile inserting and driving and sludge suction of the cofferdam. The integral downward putting of the ring beams can reach 2m each hour, and time is saved for the overall downward putting process. The high-altitude operation amount is decreased during construction. Original upper-layer ring beams are used as a downward putting platform, and integral underwater downward putting of the lower-layer ring beams is achieved.

The invention discloses a metal oxide nanoparticle and a preparation method of the metal oxide nanoparticle, which comprises the following steps: preparing an organosol containing the metal element, mixing the organosol with a water-soluble salt, performing standing or centrifuging to precipitate the water-soluble salt, removing the superfluous organosol at the upper part, and keeping the temperature to convert the organosol into gel; along with evaporation of the solvent, shrinking the gel, and coating the surfaces of the water-soluble salt particles with a layer of xerogel film; and calcining the sample at a high temperature between 400 DEG C and a salt melting point, converting the dry gel film into metal oxide nanoparticles, dispersing and attaching the nanoparticles to the surfaces ofwater-soluble salt particles, cooling, and washing with water to remove the salt, thereby obtaining the high-dispersion metal oxide nanoparticles; if the calcined product is reduced in a reducing atmosphere, converting the metal oxide nanoparticles attached to the surfaces of the water-soluble salt particles into corresponding metal nanoparticles, cooling, and washing with water to obtain the high-dispersion metal nanoparticles. According to the method, the high-crystallinity and high-dispersion metal oxide and metal nanoparticles can be rapidly prepared in batches.

The invention discloses a marine self-refueling device for an unmanned boat, and relates to the technical field of unmanned boat application. The device includes a fuel pipe retracting and releasing mechanism, a fuel pipe alignment, clamping and docking mechanism and a controller. The fuel pipe retracting and releasing mechanism is arranged above the tubing alignment clamping and docking mechanism, the fuel pipe retracting and releasing mechanism is used for driving the fuel pipe, the fuel pipe alignment, clamping and docking mechanism includes a lower bracket, a guide mechanism, a self-centering mechanism and a Z-axis electric control translation table, the guide mechanism is fixed to the upper part of the lower bracket, the guide mechanism is arranged above the self-centering mechanism,the Z-axis electric control translation table is fixed on the side wall of the lower bracket, the self-centering mechanism is fixed on one side of the Z-axis electric control translation table, the self-centering mechanism is driven by the Z-axis electric control translation table and makes the fuel pipe connected with an oil receiving port of the unmanned boat, and the controller is connected with a friction wheel transmission mechanism, the self-centering mechanism and the Z-axis electric control translation table. The device can refuel the unmanned boat without lifting the unmanned boat toa mother ship, thus realizing self-refueling and improving the working efficiency.

The invention provides a large-scale structure hydrodynamic coefficient measuring device and method. The measuring device comprises an experiment water tank, a support frame, a lead screw loading anddriving assembly and a measuring system; the support frame is arranged on the experiment water tank; the lead screw loading and driving assembly comprises a transverse lead screw, a vertical lead screw and a driving assembly used for driving the transverse lead screw and the vertical lead screw, the transverse lead screw is connected to the support frame, and the lower part of the vertical lead screw is connected with a manifold model through a connecting mechanism; the driving assembly drives the lead screws to drive the manifold model to realize translation and oscillation motion simulationof a manifold in the experiment water tank in the X direction, the Y direction and the Z direction according to set requirements; and the measuring system comprises a strain gauge connected to the lead screws and the driving assembly, a sensor and a data acquisition device connected with the sensor or the strain gauge. According to the measuring device, an experimental device is provided for hydrodynamic analysis and calculation of underwater large structure lowering and mounting in deepwater oil and gas development, and motion rules such as motion response and dynamic response of a large-scale structure in the lowering and mounting processes are accurately predicted and simulated.

The invention discloses a method for improving the working stability of an end mill and a high-stability end mill; the number of the teeth of the end mill is manufactured into an even number, so that the end edges of the teeth are unequally distributed on the same circumstance even if the angles of the end edge of each tooth and the end edges of the teeth on both adjacent sides are different, and meanwhile, the spiral angles of a spiral groove of the circumferential edge of each tooth and the spiral grooves of teeth on both adjacent sides are unequal; and consequently, the working stability of the end mill can be improved. The invention not only has the advantages of good working stability, high working efficiency and good processing quality, but also has the advantages of simple structure, easiness in production and long service life.

The invention relates to the technical field of bridge construction, in particular to a double-wall cofferdam and a pier body construction method utilizing the double-wall cofferdam. The double-wall cofferdam comprises at least one section of double-wall cofferdam unit. The double-wall cofferdam unit comprises a wall body, a cutting edge, an inner supporting rod and a guiding mechanism. The cutting edge is arranged at the bottom end of the wall body. The inner supporting rod is horizontally located in an inner surface plate of the wall body, and is connected with the inner panel of the wall body. The guide mechanism comprises a connecting rod and a guide plate, and the guide plate is connected with the inner panel of the wall body through the connecting rod, the bending degree of the guideplate is matched with the curvature of the outer wall surface of a protection tube of a drilling pile, and a distance is formed between the guide plate and the outer wall surface of the protection tube. The inner supporting rod can enhance the stability of the double-wall cofferdam. The guide plate can guide and locate the lowering process of the double-wall cofferdam. Therefore, the double-wallcofferdam has the advantages that the structure strength is improved, stability is high, water stopping effect is good, structural design is reasonable, the structure is not required to be adjusted for multiple times in the construction process, and the smooth proceeding of engineering is guaranteed.

The invention discloses a method for preparing nickel electrode slurry for an electronic component. The method comprises the steps of mixing materials, dispersing, rolling and filtering, wherein the dispersing step comprises the following substeps of: A, sequentially weighing an organic solvent and metal powder and placing in an ultrasonic special barrel, placing the ultrasonic special barrel in ultrasonic equipment, and performing primary dispersing treatment to obtain primarily mixed nickel slurry; B, adding organic carries into the primarily mixed nickel slurry obtained after treatment of the step A, placing in the ultrasonic equipment, and performing secondary stirring and dispersing treatment to obtain secondarily mixed nickel slurry; and C, placing the secondarily mixed nickel slurry which is obtained after the treatment of the step B in a power mixer, performing third-time dispersing treatment to obtain nickel slurry which is obtained through dispersing, wherein the autoroatation speed of the power mixer is 600+/-15 rpm, revolution speed is 30+/-0.6 rpm, and the third-time dispersing time is 60+/-5 minutes. In the method, the problems which cannot be solved by common shearing force can be solved by using the mechanical effect and the cavitation effect of sound waves, which are generated in liquid.

The invention discloses a building construction plummet capable of conveniently taking up and paying off a winding line. The plummet comprises a cylindrical installation shell, a plummet body is mounted on the lower portion of the cylindrical installation shell, a first circular opening is formed in the surface of the right side of the cylindrical installation shell, a first rotating bearing is embedded into the first circular opening, a second rotating bearing matched with the first rotating bearing is arranged on the surface of the inner left side of the cylindrical installation shell, a horizontal rotating shaft overlapped with the first rotating bearing and the second rotating bearing is arranged in the cylindrical installation shell, a line wheel sleeves the surface of the horizontalrotating shaft and is positioned in the cylindrical installation shell, a circular opening is formed in the center of the lower surface of the cylindrical installation shell, and the winding line fixedly connected with the upper surface of the plummet body is wound on the line wheel. The plummet has the advantages that when the plummet is used, the plummet is more stably placed downwards by the aid of the line wheel, convenient to operate, safer and not easy to slip out of the hand.

The invention discloses a resource allocation method based on a blockchain network technology. The method comprises the following steps: constructing a resource allocation network by using a blockchain network technology, the resource allocation network comprising a plurality of resource allocation nodes and a resource replacement rule, each resource allocation node being capable of providing different types of resources, and the resource allocation rule being used for replacement of different types of resources among the resource allocation nodes; the current user carrying the first resourcesends resource replacement request information to a resource allocation network, wherein the resource replacement request information comprises the type and quantity of second resources required by the current user; and configuring a required number of second resources to the current user based on the resource replacement request information by utilizing a resource configuration rule, and storinga resource configuration record in the resource allocation network. According to the invention, the resources provided by different resource providers can be mutually replaced, the centralization phenomenon of transaction is eliminated, the fairness and justice in replacement are enhanced, the privacy of the resource acquirer is strictly protected, the use experience and satisfaction of consumersare improved, the viscosity is enhanced, and the further commercial transformation is promoted.

The invention relates to a piece of noctilucous coated cloth which comprises a substrate and a noctilucous coating, wherein the noctilucous coating has a noctilucous effect; the substrate is a piece of blank cloth; the upper surface of the substrate is coated with a boundary connection coating in a jet drawing mode; the surface of the boundary connection coating is coated with the noctilucous coating in a jet drawing mode. The noctilucous coated cloth provided by the invention is simple in production process and long in light emission time, noctilucous powder can be firmly adhered to a piece of drawing cloth, and is not liable to drop off. In addition, the noctilucous coated cloth is capable of preventing water and blocking sunshine, and is particularly applicable to printing of outdoor advertisements.

The invention discloses an outer-hooping and inner-expanding type winding mechanism, comprising a retarder (2), a roller (3) and an expanding wheel (4), wherein the expanding wheel (4) drives the roller (3) to rotate; the retarder (2) is a planetary retarder and is arranged inside the roller (3), the retarder (2) and the roller (3) can be rotatably connected, and a rotating shaft is an axial center line of the roller (3); and an output shaft (21) of the retarder (2) is connected with the expanding wheel (4). Compared with the prior art, the outer-hooping and inner-expanding type winding mechanism omits a gearbox and a reversing shaft, and because the retarder (2) is arranged inside the roller (3) and the retarder (2) and the roller (3) can be rotatably connected, the outer-hooping and inner-expanding type winding mechanism has the advantages of compact structure and space saving. The invention also provides an engineering machine, comprising a machine body and the outer-hooping and inner-expanding type winding mechanism which is connected to the machine body. The engineering machine has the same advantages with the outer-hooping and inner-expanding type winding mechanism.

The invention provides a method for preparing yttrium aluminum garnet nanoparticles, which comprises the following steps: preparing organic sol containing aluminum and yttrium, mixing the organic solwith water-soluble salt, performing standing or centrifuging to precipitate the water-soluble salt, removing superfluous organic sol at the upper part, and keeping the temperature to convert the organic sol into gel; along with evaporation of the solvent, contracting the gel, and coating the surfaces of the water-soluble salt particles with a layer of xerogel film, and calcining a sample at a hightemperature between 600 DEG C and a salt melting point, converting a dried gel film into yttrium aluminum garnet nanoparticles, dispersing and attaching the yttrium aluminum garnet nanoparticles to the surfaces of water-soluble salt particles, cooling, and washing with water to remove the salt, thereby obtaining the yttrium aluminum garnet nanoparticles with favorable dispersity and crystallinity. According to the method, the high-dispersion and high-crystallinity yttrium aluminum garnet nanoparticles can be rapidly prepared in batches, and the method is suitable for preparing LED fluorescentpowder, YAG transparent ceramic and other materials.

The invention provides a casing centralizer and a casing installation method, and belongs to the technical field of oil extraction equipment. According to the casing centralizer, the casing centralizer is arranged on a casing in a sleeve mode, a main body of the casing centralizer is provided with multiple movable centralizing blocks, in a lowering process of the casing, the centralizing blocks are fixed in a through holes of the main body, so that the outer diameter of the casing centralizer is smaller, the possibility that friction is generated between the casing centralizer and a well wall is small, lowering of the casing is facilitated, after the casing is lowered in place, the centralizing blocks can move outwards under the action of external force, so that the end parts of the clamping sections of the centralizing blocks abut against the well wall outside the casing, and centralizing of the casing is achieved. The casing centralizer is more suitable for a horizontal well or a large-displacement well, the casing lowering process is easy, and the risk in the casing lowering process is reduced.

A reinforced concrete comb anchor, which is used for the positioning of cofferdams on river beds, the reinforced concrete comb anchor includes: a reinforced concrete entity; at least one anchor seat, the anchor seat is fixed on the reinforced concrete entity; at least A tooth block, the tooth block is fixed on the reinforced concrete body, and the tooth block is provided with protruding teeth facing the river bed, which can precisely position the cofferdam under the condition of no covering layer, has low construction difficulty, and can be reused.

The invention discloses a unilateral push-the-bit guide nipple which comprises an oil cylinder outer sleeve, an oil cylinder, an inner drill rod and a support plate, wherein the inner drill rod is supported in the oil cylinder outer sleeve by a bearing in a hanging manner, an accommodating cavity corresponding to the support plate in the shape is formed on the outer wall of the oil cylinder outer sleeve, at least one pressure relief hole communicated with an inner cavity of the oil cylinder outer sleeve is formed at the bottom of the accommodating cavity, the oil cylinder is arranged in the pressure relief hole(s), the oil cylinder slides relative to the hole wall(s) of the pressure relief hole(s), the hole wall(s) and the oil cylinder are sealed by a sealing ring, and a piston of the oil cylinder is fixedly connected with the support plate. According to the unilateral push-the-bit guide nipple disclosed by the invention, the extending length of the support plate can be adjusted by adjusting the pressure of drilling fluid within a certain range, so as to adjust the build-up rate of a drilling tool.

The invention relates to the technical field of building engineering construction, in particular to a hoisting device for double trolleys on a beam and a hoisting method of the hoisting device, which are used for hoisting and transporting a precast slab located at the initial position of the precast beam to the operation position of the precast beam. The hoisting device for the double trolleys on the beams comprises two guide rail mechanisms, two driving mechanisms, a movement mechanism and a hoisting mechanism, the two guide rail mechanisms and the two driving mechanisms are arranged on the two precast beams correspondingly, the movement mechanism comprises the two conveying trolleys, the two conveying trolleys are slidably arranged on the two guide rail mechanisms in the first direction correspondingly, and the first direction is the length direction of the precast beams; each conveying trolley is provided with a hoisting mechanism, and the hoisting mechanisms are configured to hoist the prefabricated slabs; the two driving mechanisms are configured to drive the two conveying trolleys to reciprocate in the first direction correspondingly. The hoisting and transporting device for the double trolleys on the beam is easy to operate, good in stability and high in adjustability when used, so that the hoisting operation precision of prefabricated slabs is improved.

The invention provides a small-bore bidirectional two-dimensional floating self-adaptive mechanism for a high-temperature and high-pressure underground pipeline. The small-bore bidirectional two-dimensional floating self-adaptive mechanism is characterized in that detection arm components are mounted around a center framework of the self-adaptive mechanism, two sensor seats are mounted at two ends of the center framework respectively, and displacement sensors are evenly mounted around each sensor seat; the detection arm components are mounted on the center framework and are adaptive to the inner diameter changes of a measured pipeline to allow probe modules to constantly fit the inner wall of the pipeline; displacement sensor probes are connected with probe push rods to convert the inner diameter radial changes of the pipeline into axial displacement of the displacement sensors. The small-bore bidirectional two-dimensional floating self-adaptive mechanism has the advantages that peripheral 360-degree inner diameter variation and defect detection of the pipeline can be realized, and each group of magnetic circuit modules can radially float independently to adapt to pipeline inner diameter variation conditions; the mechanism can axially bidirectionally move to adapt to the bidirectional movement of descending and retracting of a weak magnetic well diameter combined sleeve logging instrument in the pipeline, the problem of detector passability is solved, and whole product research and development are assisted.

The invention belongs to the field of petroleum drilling and production. The invention particularly relates to a hydraulic high-pressure particle jet plug drilling test device. The device comprises aconveyor, a cementing truck, a high-pressure pipe, a skid-mounted frame, a sliding sleeve, a movable cross beam, a vertical rail, a sliding sealing assembly, a return pipeline, a balancing weight, anupper glass cylinder, an oil pipe, a spray head, a nozzle, a lower glass cylinder, a hinge, a recovery tank and the like, the special particle jet drilling and plugging test device is used, the groundfull-size simulation of the underground particle jet drilling and plugging process is realized; by means of visualization of particle jet flow jet drilling and annulus upward returning, lowering andlifting of a spray head can be effectively controlled, due to adjustable bit pressure in the drilling process and reliable dynamic sealing of a moving oil pipe and annulus return liquid, the hydraulichigh-pressure particle jet flow plug drilling effect is verified, and hydraulic high-pressure particle jet flow plug drilling optimization construction parameters are obtained.

The invention discloses a mixed slurry obtaining device and a using method thereof. The device comprises a tool body, a piston, a piston rod and a one-way valve, the upper end of the piston is fixedlyconnected with the lower end of the piston rod, and three cavities axially communicating are formed in the tool body from top to bottom in sequence, wherein the three cavities are an oil pipe connecting cavity, a piston rod sealing cavity and a piston sealing cavity correspondingly; and the piston is installed in the piston sealing cavity, the piston rod is arranged in the piston rod sealing cavity in a penetrating mode, the tool body is further provided with a radial channel, the radial channel communicates with the lower half section of the piston rod sealing cavity, the inner diameter of the lower half section of the piston rod sealing cavity is larger than the outer diameter of the piston rod, and the one-way valve is installed in the radial channel. A liquid taking tool can be accurately lowered to the designated depth, a mixed slurry fluid sample in a casing at the designated depth is effectively extracted, mixed slurry components in a cleaning area in the casing are analyzed, and support is provided for effectively solving the problem of waste well treatment.

The invention discloses a slipper structure which includes a sole which is provided with an instep band thereabove and also includes a tread layer. The tread layer is in secured to the sole. The tread layer includes a lower surface and an upper surface. The edges of the upper surface and the lower surface are sealed to form an enclosed space which accommodates particle-shaped solid viscoelastic bodies which are piled up. When a foot applies heavy force to the enclosed space, a certain number of particle-shaped solid viscoelastic bodies are molded to have the shape of a feet sole, such that the slipper structure can achieve the effects of 3D (3 dimensional) molding support and pressure reduction and comfortableness.

The invention discloses a space-saving multipurpose film and television wall for interior design. The space-saving multipurpose film and television wall comprises a wall body, a television groove is formed in the front face of the wall body, a winder is installed on the upper portion of the front face of the wall body, a curtain is wound in the winder, and one end of the curtain is connected with a balance weight rod in a clamped mode; optimally, the front face of the wall body is provided with a storage groove and an air guide plate which are used for preventing flowing airflow from entering the space between the curtain and the wall body. Preferably, an adsorption mechanism enabling the curtain and the wall to be in close contact is arranged on the front face of the wall, and the adsorption mechanism comprises an air flow groove and an air outlet hole which are formed in the front face of the wall. According to the space-saving multi-purpose film and television wall for interior design, the air deflectors are arranged on the two sides of the curtain, so that when wind blows, the inclined air deflectors introduce part of wind into the storage groove and support the other part of wind, the other part of wind does not flow along the wall body any more, the effect of blocking wind for the curtain is achieved, the wind is prevented from flowing along the wall body, and when the wind makes contact with the curtain, the wind is prevented from entering the storage groove. And the curtain is blown up, so that the film watching experience is influenced.