810 results about "Single section" patented technology

The invention relates to a hydrocracking catalyst with high activity and high-medium oil selectivity. According to the hydrocracking catalyst, amorphous silicon aluminum is used as a carrier, and a specially-modified Y-type molecular sieve is used as acid component, the molecular sieve has high degree of crystallization and low cell parameters, rich secondary holes, large surface area, less uniformly-distributed acid sites, no strong acid center, and most of medium-strength acid centers, and also has strong nitrogen-resisting performance and better damage capacity; and the hydrocracking catalyst using the molecular sieve has high hydrocracking activity and high middle oil selectivity, and stronger nitrogen resisting capacity. The catalyst provided by the invention is used in the process of producing an intermediate distillate product by adopting a heavy hydrocarbon single-section or one-section hydrocracking process, and has better activity and middle oil selectivity.

A double walled polycarbonate liquid holding vessel. The vessel may have an inner wall and an outer wall that are coupled to each other in a manner that defines an air tight gap therebetween. A resealable unit may be provided with the vessel that permits resealable access to the interior of the inner wall. The outer wall may be multi-section or single section, and various techniques may be used to conceal joints used to mount the outer wall to the remainder of the vessel. Various embodiments are disclosed.

The invention discloses a preparation method of a hydrocracking catalyst. The method comprises the steps of preparing an acidic mixed solution A containing hydrogenation reactive metals and silicon, preparing a sodium metaaluminate alkaline solution B, and then adding the acidic mixed solution A, the alkaline solution B and CO2 to a reaction tank filled with clear water in parallel to prepare gel; and then adding turbid liquid of a Y type molecular sieve, mixing the substances uniformly, filtering, drying and forming the mixture, and then washing, drying and roasting the product, thus preparing the hydrocracking catalyst. The method has the beneficial effects that a clean preparation method is adopted, so not only can the catalyst be easily formed and the strength of the catalyst be improved, but also the pore volume and specific surface area of the catalyst can be increased and the dispersity of metals in the catalyst can be improved, thus the catalyst has higher hydrocracking activity, middle oil selectivity and stability; and the catalyst prepared by the method can be used for a single-section hydrocracking process of a non-refining section or a one-section serial hydrocracking process of a refining section.

The invention discloses a single-section type silicon rod cutoff machine and a cutoff method of the single-section type silicon rod cutoff machine. The single-section type silicon rod cutoff machine comprises a machine base, a silicon rod conveying platform and single-section cutting equipment, wherein the silicon rod conveying platform is arranged in the cutting region of the machine base and used for bearing silicon rods to be cut and driving the silicon rods to be conveyed in the axial direction of the silicon rods; the single-section cutting equipment comprises a movable cutting frame slidably arranged on the machine base along the silicon rod conveying platform and a single-section linear cutting unit, wherein the single-section linear cutting unit is arranged on the movable cutting frame, arranged above the silicon rod conveying platform in a liftable manner and used for conducting single-section cutting in silicon rod cutting, and cut single-section silicon rod sections meeting the workpiece standard are obtained. According to the single-section type silicon rod cutoff machine and the cutoff method, the position of the movable cutting frame is adjusted according to the specified silicon rod size, and then single-section cutting is conducted in silicon rod cutting through the single-section linear cutting unit, so that the silicon rods to be cut accord with the specified cutting length, and the cut single-section silicon rod sections meeting the workpiece standard are obtained; and by adjusting the position of the movable cutting frame, the requirement of the cutting work of the silicon rods with any size can be met.

The invention relates to a diameter-variable tube washing robot with parallel four-rod device, wherein it is formed by several same tube washing devices, that connected by flexible springs; each unit is formed by support, flexible panel and washing head; the support is formed by several parallel four-rod devices around the central axle; via torsion spring, the parallel four-rod device will open, and the rolling wheel on the swing rod will contact the inner wall of tube, to support the whole tube washing device; when meeting obstacle, the four-rod device will overcome torsion spring to contract; the washing head is mounted on the connecting rod of four-rod device, to contact the inner wall of tube via spring; the flexible panel on the back swing rod can block the inner fluid, to generate pushing force, and move the support forwards. The invention can avoid additive powder and clean any tubes.

A disposable absorbent pant having single-section side stretch panels is disclosed. The pant may have features including seams of overlapping configuration or sandwiched configuration, or a belt configuration. A seam of overlapping configuration may be formed by bonds with features that provide for tensile strength in a lateral direction, while providing enhanced tearability for convenient removal, and may include additional features including indicia of a tearing location, a tear-inducing notch, and structure to grasp for tearing. A seam of sandwiched configuration may provide a finished outward appearance. A belt configuration provides counterbalancing of lateral tension forces and reduces demand for structural robustness in backsheet materials, seams and bonds. Sandwiched and belt configurations allow for extended lateral width of side panels and increased stretch, without extending overall hoop circumference at risk of unduly loose fit.

The invention discloses a planning method for the smooth trajectory of a robot in Cartesian space. The planning method comprises the following process: planning the positions and postures of single-section trajectories, such as a spatial line and an arc; carrying out planning on the smooth transition of a path; controlling the size of the transition region of the path by adopting a transition grade; fitting the path in the transition region by adopting a parabola, and fitting the postures by adopting a quaternion algorithm; and adopting a cycloidal acceleration and deceleration planning method containing acceleration and an acceleration restraint to carry out planning on the spatial trajectory of the path so as to obtain the smooth spatial position and posture trajectory of a robot. The method can effectively solve robot trajectory problems, such as pause, non-smoothness, dithering, path deviation and speed excess and improve the running stability of the robot. The planning method for the smooth trajectory, related to the invention, has certain flexibility, and not only can plan the positions and the postures in the Cartesian space but also can adapt to various robot structures, containing common 6-degree-of-freedom vertical joint mechanical arms, low-degree-of-freedom robots and redundant robots.

Universal serial bus powered battery charger primarily intended for use in battery powered hand-held and other portable devices to charge the battery or batteries within the battery powered device when the same is connected to a host device, powered hub or a bus powered hub through a universal serial bus (USB) port. The battery charger includes one or more current limits to conform to the universal serial bus current supply limit set in the USB specification. Any of the universal serial bus voltage and current limits may be used to charge batteries in the battery powered device, such as single cell lithium-ion batteries. Various features are disclosed.

The invention relates to a modular high-redundancy multi-freedom-degree flexible mechanical arm system, which comprises N sections of mechanical arm modules, wherein the N is a natural number being greater than 1; each single section of mechanical arm module has three freedom degrees which respectively include two bending freedom degrees and a feeding freedom degree; the adjacent mechanical arm modules are nested and combined together and can oppositely move. The system also comprises a machine frame, a first section of mechanical arm module is arranged on the machine frame and can outwards extend relative to the machine frame; each of other sections of mechanical arm modules can outwards extend stage by stage, and can realize the bending movement in the extending process; feeding mechanisms are arranged between the machine frame and the first section of mechanical arm module and between the adjacent mechanical arm modules; the feeding movement is realized. Compared with the prior art, the modular high-redundancy multi-freedom-degree flexible mechanical arm system has the advantages that the moving capability is high; the modular high-redundancy multi-freedom-degree flexible mechanical arm system can work in a complicated narrow space; the load is higher; the precision is higher, and the like.

A heat exchanging method and apparatus for improving heat transfer in a cooling system. Specifically, the heat exchanging method and apparatus is an absorption chiller that comprises a heat transfer device having one heat pipe partially disposed within a second heat pipe, where the juncture of the coupled heat pipes promotes absorption of a vapor into a working solution. The juncture of the coupled heat pipes is disposed within a condenser section such that two processes, condensation and absorption of the absorption chiller are efficiently implemented within a single section or chamber.

The invention discloses a method for preparing bleached chemi-mechanical pulp fore culture paper making by using cotton wood to process remainder, which belongs to the field of pulp refining for making paper. The method mainly comprises presteaming, double screw extrusion, chemical impregnation, high-consistency pulp refining by a double-screw fiberizer, adding medicament in the pulp refining process, high-consistency stay, middle-consistency pulp refining and other steps. The pulp refining process adopts single-section double-screw extrusion and single-section alkaline hydrogen peroxide impregnation, has simple process flow and compact equipment, completely adopts home equipment and saves the investment. The chemi-mechanical pulp prepared by processing cotton wood remainder through the method has the characteristics of high bulk, strength, whiteness and the like, and is suitable for pulp to be used for paper making of medium-high grade culture paper. The method achieves the cleanness and high-efficiency utilization of the remainder of the cotton wood processing factories, and is suitable for medium-small paper making enterprises for producing culture paper dependent on outsourcing goods.

The present invention provides a charge-discharge protection circuit of a multiple-section series Li-ion battery, including at least two section Li-ion battery mutually serial connection in orders, an external connective load and a charge power; characterized in that two ends of each section Li-ion battery is accordingly connected with a sampling circuit and a signal conversion circuit, further including a public execution circuit. The invention fully applies the single-section Li-ion battery protection chip, each Li-ion battery is matched with a single-section Li-ion battery protection chip, forming an unit circuit by matching with a fet; each unit circuit includes a sampling circuit and a signal conversion circuit, for monitoring voltage of each single Li-ion battery and output control signal; the charge-discharge voltage and the current of each single Li-ion battery is wholly controlled by the execution circuit which core is the fet, only when the working voltage of the single Li-ion battery is too high and low, or the working current of the Li-ion battery is too high, the charge or discharge of the circuit is closed, achieving the aim of the protecting the Li-ion battery.

The invention relates to a power distribution network health index assessment method comprising the following steps: 1, determining power distribution network health index connotation and purpose; 2, determining a power distribution network health index assessment object; 3, determining a power distribution network health index assessment index system; 4, evaluating a transformer and distribution equipment health index; 5, evaluating the power distribution network health index. In a long term, the reliability research pays more attention on a single device at certain moment, a single section (static state), a fault result, and a cause and effect relation; the novel method provides a colony equipment and network health index assessment method, can study the colony equipment and network dynamic health level and power supply reliability, can guide power distribution network planning and operation unkeep asset management, can provide equipment and network health status quantification analysis, and macroscopic and microscopic are combined to provide base theory and practical technical means.

The invention discloses a rockburst active control method based on blasting excavation disturbance control. The rockburst active control method aims at overcoming the shortcoming that only blast load induction disturbance is considered in traditional blasting disturbance control, the rock mass strain energy release amount caused by single-section blasting is reduced by changing blasthole arrangement and an explosion initiation network, so that the goal of weakening overall release rate of rock mass strain energy is achieved on the basis of controlling blast load induction disturbance to achieve control of deep rock mass excavation disturbance, and active control of rockburst is achieved finally. The rockburst active control method is suitable for blasting excavation construction of deeply buried underground engineering in the fields of hydraulic and hydro-power engineering, traffic and mines and the like.

The invention belongs to the category of storage batteries and specifically provides a connection method of the tree structure of a matrix battery bank. The method is characterized by unitizing the batteries, connecting the low-voltage and small-capacity single small batteries in series to form a battery pack, connecting each single small battery in the battery pack with a single protection circuit and simultaneously connecting parallel equalizing circuits with series equalizing circuits to form a complete battery protection system; using the battery pack as a new elementary battery, then combining parallel connection with series connection to form a bigger matrix battery pack, connecting the parallel equalizing circuits between the battery packs on the same level and adding the series equalizing circuits between the series connection layers; and then using the matrix battery pack as a new elementary battery to form another bigger matrix battery pack, doing the rest in the same manner and finally forming the large high-voltage and high-capacity matrix battery bank of tree structure. The method can effectively eliminate the capacity variance caused by the power battery technology and the manufacturing process level, thus prolonging the service life of the battery bank.

An electromagnetic drive variable-rigidity bionic swing propelling device comprises a support, at least two sections electromagnetic swing units and a tail fin. The whole shape of a fish body is sealed by a fish skin. The first section of electromagnetic swing unit is connected with the head of the head of the fish body. Other sections of electromagnetic swing units are connected with a flexible spine. The last section of electromagnetic swing unit is connected with the tail fin. The electromagnetic swing unit comprises an upper magnetic body, a lower magnetic body, control coils, the flexible spine and an armature. The flexible spine is hollow. A coil for controlling electric currents is embedded into the flexible spine. The upper magnetic body and the lower magnetic body are fixed on the flexible spine respectively. The armature is fixed in the middle of the upper magnetic body and the lower magnetic body. The middle of the armature is fixedly connected with the flexible spine. The control coils are sleeved at two ends of the armature. The flexible spine is driven to bend by the generated electromagnetic torque so as to drive the fish body to swing for propelling. The electromagnetic drive variable-rigidity bionic swing propelling device is small in size, light, continuous in action, easy to implement, low in noise and low in mechanical loss.

An electrical adaptor providing access to an electrical receptacle with an object placed in close proximity directly in front of the receptacle. The electrical adaptor having a pair of male connectors with a center line; a pair of female connectors having a center line; the female connectors in electric conductive communication with the male connectors; a rigid single section body having a bend such that the center line of the female conductors is oriented and fixed at an angle of 90° relative to the center line of the male connectors and the center line of the female connectors is oriented and fixed at an angle of 30° to 60° from a plane formed by the male connectors; and the body extending from the male connectors to the female connectors.

The invention discloses a middle-pressure hydrocracking method for producing aviation kerosene and low-freezing point diesel. The method comprises the steps that a single-section serial one-time passing flow is adopted under a middle pressure condition; the heated material and hydrogen enter a hydrotreatment reactor; reaction effluent enters a hydrocracking reactor without separation, and reacts under the existence of a hydrocracking catalyst; the generated reaction effluent is subjected to oil-gas separation and then cyclically used after being compressed by the obtained hydrogen-rich gas; the obtained liquid is distilled to obtain a little of pyrolytic naphtha; and a large part of product is middle distilled oil fraction. By adopting the method provided by the invention, 3# aviation kerosene and low-freezing point diesel meeting the GC6537-2006 standard are prepared from light wax oil or a mixed material of the light wax oil and FCC light cycle oil under the middle pressure condition. The method disclosed by the invention is simple in flow, low in operating cost, and low in device investment.

The invention discloses a battery modeling method based on a Simscape platform. The battery modeling method comprises the following steps: extracting parameters in an equivalent circuit model by an HPPC (Hybrid Pulse Power Characterization) test; carrying out a battery road drive cycle ageing test, testing battery capacity and ohmic internal resistance after each cycle; establishing each circuit module in the equivalent circuit model based on the Simscape platform; establishing battery cell sub models according to each established circuit module; connecting the battery cell sub models in parallel to establish single-section battery sub models; connecting the single-section battery sub models in series to establish a battery pack integral module; and setting ageing factors of each battery cell sub model in the battery pack integral module. According to the battery modeling method based on the Simscape platform disclosed by the invention, modeling precision is higher than that of electric car simulation software ADVISOR which is commonly used at present. The modeling method based on the Simscape platform provides a novel thought and a novel method for modeling in the future, and has the advantages of being simple in modeling and strong in flexibility.

The invention relates to the technical field of digital control laser cutters, and in particular relates to a laser cutting path optimizing method. The optimizing method is characterized by comprising the following steps: (1) inputting a graph to be cut into a control system of the laser cutter, wherein the graph is composed of at least one independent pattern, and each pattern is composed of at least one outline pattern; (2) ordering all outline patterns in the graph in accordance with inner and outer layers, so as to distinguish that whether the filling type of each outline pattern is negative cutting or positive cutting; (3) in the output graph with ordered outline patterns in inner and outer layers, ordering the outline patterns of each layer from inside to outside in sequence in a single layer and separated piece mode; and (4) outputting an optimized path. Compared with the prior art, the rate that single section long distance empty motion happens is greatly reduced, the potential safety hazard is reduced, the implementation is simple, the speed is rapid, and the efficiency in processing large graphs is higher.

The invention relates to the technical field of charge, and discloses an equalizing charge method and an equalizing charge device for a battery. The device comprises a control module; the control module monitors the voltage signal of each single battery; and when the voltage signal of the monitored single battery exceeds a comparison voltage value, a shunt unit connected in parallel with the single battery is controlled to shunt so as to reduce the charge current of the single battery. Because the adopted shunt unit can automatically realize voltage balance between the single batteries, the equalizing charge method and the equalizing charge device for the battery can gradually reduce the inconsistency of a battery pack, ensure that all the single batteries in the battery pack reach consistency after several times of charge cycle, and effectively ensure the safety of each single lithium battery in use and prolong the service life; and the device has the advantages of simple control, low cost, higher efficiency and low heat consumption, can replace an expensive special equalizing chip, and can be widely applied in civilian industry products supplied with power by the lithium battery.

The invention discloses a continuous mechanical-arm space obstacle avoidance trajectory planning method. The continuous mechanical-arm space obstacle avoidance trajectory planning method comprises thefollowing steps that a kinematic model of a continuous mechanical arm is established, tail end space trajectories are generated according to task requirements, a space reference curve of mechanical-arm configuration is established utilizing a modal function, the tail end of the mechanical arm can be made to reach a desired position, the mechanical-arm configuration is fitted with the space reference curve according to deformation characteristics of a single section mechanical arm, the single section arm segment configuration is calculated according to reference fitting points, whether the continuous mechanical arm collides with an obstacle or not is detected, the mechanical-arm configuration is adjusted according to the obstacle avoidance strategy, and obstacle avoidance is realized. By means of the continuous mechanical-arm space obstacle avoidance trajectory planning method provided by the invention, the continuous mechanical-arm space obstacle avoidance trajectory planning can be realized.

The present invention relates to a method and an apparatus for producing container-shaped composite packaging. The web-like material consisting of a composite comprising at least one cardboard layer and at least one plastic layer is folded, provided with sealing seams and divided into sections which are each provided for the construction of the container. The sealing seam is created before the web-like material is divided into individual segments.

The invention relates to a hydrocracking catalyst with high activity and oil selectivity, which comprises: amorphous alumina silica as carrier; and special modified Y-shape molecular screen as acid constituent that has high crystallinity, low cell parameter, riched secondary pores, large superficial area, belongs to medium strength acid center, and has strong nitrogen-resistant and ring-splitting capacity. This invention has well activity and stability for middle distillate oil in heavy hydrocarbon single-section hydrocracking technique.

The invention discloses a control and protection circuit for a single-lithium battery electric tool and a detection and control method for the control and protection circuit. The control and protection circuit comprises a singlechip power supply circuit, a battery charging and discharging voltage detection circuit, a battery charging and discharging temperature detection circuit, a battery charging control management circuit, a motor switching and commutation control circuit and a working state indication circuit. A singlechip is used as a master control integrated circuit (IC), and is matched with simple peripheral components to realize all functions of protecting and controlling the single-lithium battery electric tool, so that the functions are flexibly designed, circuit complexity is lowered, the number of electronic components is decreased, cost is lowered, and the circuit is high in safety and reliability, and is almost power consumption-free when not working, and has the advantages of environment friendliness, energy saving, lightweight, convenience for use, high operation efficiency, long cycle life of a battery, and the like.

The invention provides a backlight module framework and an assembly method; based on a single-section structure through a modularized concept, the framework structure of a backlight module is modularized and the board body part of the framework is formed upon a required size in an assembly manner; in addition, baffle plates and side plates are respectively arranged around the board body to form a backlight module framework; optical patch groups are respectively arranged on the grooves and the support plates on the baffle plates; compared with the prior art, the invention can improve the complexity and reutilization of the backboard die for large-size LCD backlight modules, reduce the die sinking cost and time of the backboard die for large-size LCD backlight modules, so as to achieve the purpose of reducing the cost of the backlight modules; besides, the invention also discloses the design of heat sinks to increase the heat radiation area and cooling the light source groups.

An artificial muscle driven bionic moving mechanism is composed of pulse power wires, power supply, controller connected between said pulse power wine and power supply, skeleton consisting of one or more vertebrae with pores, artificial muscles made of memory alloy or electrosensitive polymer and connected between two pores on vertebrae, and deformation inductor.

The invention provides a lithium battery charge and discharge management system. Lithium battery is a single-section lithium battery. The lithium battery charge and discharge management system comprises a lithium battery charge and discharge management module, a lithium battery voltage over-discharge protection module, a lithium battery discharge overcurrent protection module and a boosting module. Correspondingly, the invention further provides a lithium battery charge and discharge management method. The lithium battery charge and discharge management system and the lithium battery charge and discharge management method, which are provided by the invention, realize the application management of the single-section lithium battery, overcome the difference among the lithium batteries caused by series connection of the lithium batteries in the prior art, and greatly prolong the service life of the lithium batteries. Meanwhile, the lithium battery charge and discharge management system can be protected by the lithium battery voltage over-discharge protection module and the lithium battery discharge overcurrent protection module, so that a lithium battery protection panel is not required to be additionally provided in the lithium battery charge and discharge management system. Therefore, the lithium battery charge and discharge management system and the lithium battery charge and discharge management method have the advantages of safety, reliability, simplicity in realization, low cost, and easiness in lithium battery charge and discharge management system and the lithium battery charge and discharge management method.