1331results about How to "Reduce replacement" patented technology

The invention discloses an LED (Light Emitting Diode) lamp tube, which comprises a glass tube, lamp caps arranged at two ends of the glass tube as well as an LED lamp strip arranged in the glass tube, wherein the inner wall of the glass tube is coated with a light increasing and heat radiating film; and the LED lamp strip is fixedly adhered to the inner wall of the glass tube through a high heat conduction bonding adhesive. The light increasing and heat radiating film is an aluminum-coated layer, or a frosted heat conduction light increasing adhesive layer or a nano adhesive layer capable of increasing light and radiating heat. The LED lamp strip comprises a substrate, wherein a plurality of LED light sources are welded on the substrate, or an integrated light source consisting of an LED chip is packaged on the substrate; and a driving power supply module is also arranged on the LED lamp strip. According to the LED lamp tube disclosed by the invention, the light emitting efficiency, the light emitting angle and the illumination area of the LED lamp tube are increased; the problems of glare and point light existing in the LED lamp tube are solved; heat generated by an LED is transmitted to the whole glass tube through the substrate of the LED, so that the heat radiating area is greatly increased and the heat increasing speed of the LED lamp tube is increased; the LED lamp tube can be applied to a lamp holder of a traditional fluorescent lamp, and thus the generality of the LED lamp tube is greatly improved; and the replacement and use costs are reduced.

A windshield wiper structure for vehicles includes a truss saddle, a bow elastic stripe, a cover body, some detachable clamping devices, a strip scraper and a frame cover. Hollow pressure adjusting vents are created on said bow elastic stripe in order to keep nearly the same elasticity at every section of said bow elastic stripe. Hence, force can be equalized in every portion of the whole wiper thereby achieving even pressure distribution. As a result, the contact between the strip scraper and the windshield glass is uniformly tight and hermetic to enhance the scraping effect of the windshield wiper as the effect of prolonging service-lifetime while reducing expenses associated with wiper replacement, thereby providing enhanced economy and environmental protection.

In a sensor network system comprising a sensor terminal and a management server, the sensor terminal transmits observation data acquired using the sensor, the management server has a latest data storage manager which manages the latest observation data among observation data received from the sensor terminal, a history data storage manager which manages the history of the observation data from any time when data was received from the sensor terminal to the latest observation data, and a missing data manager which manages missing history data, and compensates the missing history data based on a predetermined rule, and when a request for such observation data is received, at least one of the latest observation data managed by the latest data storage manager, and history data wherein the missing data has been compensated and managed by the history data storage manager, is output according to the type of request.

The present invention provides a unique system and method that facilitates incrementally updating spam filters in near real time or real time. Incremental updates can be generated in part by difference learning. Difference learning involves training a new spam filter based on new data and then looking for the differences between the new spam filter and the existing spam filter. Differences can be determined at least in part by comparing the absolute values of parameter changes (weight changes of a feature between the two filters). Other factors such as frequency of parameters can be employed as well. In addition, available updates with respect to particular features or messages can be looked up using one or more lookup tables or databases. When incremental and / or feature-specific updates are available, they can be downloaded such as by a client for example. Incremental updates can be automatically provided or can be provided by request according to client or server preferences.

The invention relates to the technical field of patrol inspection of electric power circuits and more specifically relates to an intelligent flight control method and system for fine patrol inspection of a UAV. According to the invention, first, through manual fine patrol inspection, patrol inspection path nodes can be recorded in detail and patrol inspection paths are played back and optimized. Second, pilot fight verification is performed continuous optimization is executed. Finally, a fine patrol inspection path database for each iron tower is formed. Based on the optimized patrol inspection path databases, full automatic flight patrol inspection for the iron towers can be realized. By adopting the iron tower fine patrol inspection operation mode, patrol inspection flight paths are optimized; the positioning precision is far higher than that of manual operation, flight photographing is normalized and quality is ensured. Besides, each UAV can provide patrol inspection for multiple iron towers, outside-visibility range photographing can be realized and battery consumption in a flight process can be in fine control, so that patrol inspection efficiency can be improved. Besides, technical difficulties for patrol inspection operation workers are reduced and the application range is enlarged.

The invention discloses an electromagnetic forming device and an electromagnetic forming method for a micro fuel cell metal bipolar plate microchannel, and relates to a micro fuel cell metal bipolar plate microchannel forming device and a micro fuel cell metal bipolar plate microchannel forming method so as to solve the problem of matching difficulty between micro male and female dies in the process of forming a microstructure on a metal thin plate based on stamping and other conventional plastic deformation means. The device comprises an upper template, a coil, a driving sheet, a die, a lower template and a fastening bolt; a groove is formed on the surface of a supporting frame so as to accommodate the coil; a circular through hole is formed in the center of the bottom of the groove so as to accommodate the die; the driving sheet is arranged above the die; and an axial lead of the coil is in upper and lower directions. The method comprises the following steps of: discharging to the coil to excite a strong pulsed magnetic field; generating induced eddy on the surface of the driving sheet so as to generate a magnetic field opposite to the magnetic field of the coil in the transient strong pulsed magnetic field; and driving a plate blank to make die attaching motion by using the driving sheet under repellent applied force between the magnetic fields. The invention is used for micro-forming.

A collector for a negative pressure wound therapy system has a soft collecting bag with a gas-permeable unit and a liquid absorber. The collecting bag is connected to a wound-dressing unit via an inlet connecting set and is connected to a sensor assembly via a detecting connecting set. With the soft collecting bag, the collector occupies less volume. By the gas-permeable unit and the liquid absorber, the liquid and gas entering into the collecting bag quickly isolate. Moreover, multiple collectors connect in series to form a collector combination to reduce the frequency to replace the collector combination so that a longer usage time of the collector combination is available.

A colostomy bag with a vent and a method for venting gas collected in the colostomy bag. A dual vent and cap assembly attached to a colostomy bag vents gas trapped in the bag either continuously or as periodically desired by a user. A method for venting gas collected in the colostomy bag provides that replacement and / or cleaning of the colostomy bag is reduced. Also, a method of using a disposable sleeve in combination with a clip may be used to hygienically clean the colostomy bag.

The invention relates to a 3D (three-dimensional) printing powder delivery and paving linkage type bidirectional powder paving device. The 3D printing powder delivery and paving linkage type bidirectional powder paving device comprises a worktable, a powder paving driving device, and a powder paving device, wherein the powder paving device is of a powder delivery and paving linkage structure and comprises a powder bin, a powder falling closing area, a quantitative powder delivery area and a powder paving part; the powder falling closing area is arranged at the bottom part of the powder bin, and a powder falling closing shaft is arranged in the powder falling closing area; a detachment and installation structure is arranged between an end cap of the powder bin and the bottom part of the powder bin; a powder bin pressing rotary button is arranged above a roller cylinder in the quantitative powder delivery area and is used for fixing the powder bin and the roller cylinder, a quantitative powder delivery roller is arranged in the quantitative powder delivery area, a powder falling port is arranged under the quantitative powder delivery roller, and the roller cylinder is detachably connected with the bottom part of the powder bin; a powder delivery and paving separation structure is arranged between the powder delivery and paving linkage structure and the powder paving driving device; the powder paving part is arranged at both sides of the roller cylinder, and each side is provided with a scraping knife. The 3D printing powder delivery and paving linkage type bidirectional powder paving device has the advantages that the whole structure is stable, the efficiency is improved by double scraping knives, the bidirectional powder paving function is realized, the aligning process of powder delivery and powder paving in working is not needed, the powder control accuracy is high, and the powder lifting and snapping are avoided; the structure is simple, and the detachment and cleaning are convenient.

A preparation method of a phenolic resin base carbon aerogel comprises steps of: (1) preparing a phenolic resin solution with a content of 10-50wt%; (2) gelling and ageing under high temperature and high pressure; (3) carrying out supercritical drying and discharging to obtain an organic aerogel; (4) cracking, carbonizing and discharging to obtain the aerogel. The preparation method of the carbon aerogel of the invention has the following three advantages: 1) a sodium carbonate catalyst does not need to be added in the first step, and the carbon aerogel has high purity and does not contain metal ion impurity; 2) the raw material phenolic resin is cheap; 3) a total process time is shortened that the organic aerogel can be obtained in one day and that the carbon aerogel can be obtained in two days.

The invention belongs to an environment-friendly intelligence appliance multi-purpose remote controller. Based on infrared technology of the existing remote controller of a TV, an STB (Set Top Box), an air conditioner, a refrigerator and a microwave oven, the appearance hardware of the existing remote controller is integrated and remolded, and a memory inside a chip of the remote controller is expanded. Codes of all remote controllers of appliances in the market are numbered (a uniform code table is complied) according brands and models of the appliances. The codes are stored and written into a control chip inside the intelligent remote controller. When the remote controller is used, remote control buttons are pressed to find corresponding codes by searching the different corresponding code tables, so that infrared control signals are started, evoked and emitted. After receiving the infrared control signals, an appliance infrared receiving window demodulates and decodes the signals, and restores a remote control command to inlayed appliance control chips. The appliance receives the remote control command and executes corresponding functional control. The remote controller transforms single control modes of the existing remote controller into multiple control modes.

The invention is suitable for the field of mobile terminals, and provides a method and a system for customizing applications and displaying application information and a mobile terminal. The method for customizing the applications comprises the following steps of: receiving an application which is selected by a user and is required to be loaded to a main interface after the mobile terminal is started; writing the application selected by the user and the configuration information thereof in an application starting file; when the mobile terminal is restarted, reading the application starting file; loading the application and the configuration information thereof stored in the application starting file to a memory; and displaying the application on the main interface. Through the method, the user can freely increase or decrease the number of the applications required to be loaded to the memory according to requirements, and freely increase, decrease or change application icons on the main window interface of the mobile terminal. The method for displaying the application information can make the user quickly view the running and configuration information of all the loaded applications in the mobile terminal.

The invention relates to a high-temperature-resistant soft double-shield instrument cable for maritime oil and gas engineering and a manufacturing method thereof. The cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a tin-plated annealed stranded copper conductor to form a power cable insulation wire core; every two insulation wire cores are stranded, and then wrapped with a wire core copper foil polyester composite tape shielding layer and a wire core polyester tape, and then the insulation wire cores are stranded to form a cable core; and the periphery of the cable core is successively provided with an extruded cable core copper foil polyester tape and cable core polyester tape, an extruded inner sheath, a clad copper alloy wire weaving armor layer, a wrapped water-proof wrapping tape, and an extruded outer sheath. The insulation layer comprises the following raw material components: 12 parts of ethylene / vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076, 0.2-0.4 part of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of aluminum hydroxide, 0.6-1 part of red phosphorus; and 0.05-0.1 part of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.

Provided is a GIS (Gas Insulated Switchgear) with a withdrawable circuit breaker unit including a main bus compartment having a main bus-bar unit, a transfer bus compartment including a transfer bus-bar unit, a sealing circuit breaker compartment including a circuit breaker unit and an outgoing compartment including a current transforming unit and a cable terminal being electrically coupled to the transfer bus-bar unit. The circuit breaker unit is contained in the sealing circuit breaker compartment that is separately independent from other compartments. The circuit breaker unit is withdrawn and inserted without interrupting power supply of the outgoing compartment. The circuit breaker unit is electrically coupled to or isolated with the main bus-bar unit and the current transforming unit according to whether the circuit breaker unit is withdrawn from or inserted to the sealing circuit breaker compartment. The sealing circuit breaker compartment and the outgoing compartment do not share insulation gas.

The invention discloses a method for synthesizing N-benzyl maleimide from an immobilized supported acid catalyst and belongs to the synthesis technical field. The method comprises the following steps: soaking silica gel, a molecular sieve, aluminum trioxide and acidic resin or an active carbon carrier in an acid solution in equal volume, drying the mixture to obtain a supported catalyst and putting the supported catalyst into a stainless steel net; adding aniline and maleic anhydride into a benzene, toluene or xylene solvent and acidylating, stirring and heating the mixture to obtain the N-benzyl maleimide acid solution; then adding the N-benzyl maleimide acid solution, a polymerization inhibitor and the supported catalyst into a dehydration reactor for dehydration cyclization, reducing the pressure to remove the solvent and obtain the N-benzyl maleimide crude product, and recrystallizing in the solvent to obtain the N-benzyl maleimide. The invention has the advantages of high yield of N-benzyl maleimide, low content of waste acid, few production flows, low cost and little discharge of acid-containing waste water; moreover, as the catalyst is immobilized, the invention simplifies the replacement of the catalyst, reduces the mechanical abrasion of the catalyst and prolongs the service life of the catalyst.

The invention provides a cloth cutting device comprising a transport roller device, an adjustable guide roller mechanism, an auxiliary roller assembly, a press unit, a cutter and a rolling device; the press unit is provided with a tool rest; two sides of the tool rest are provided with a press mechanism; the cutter is arranged above the press unit; two sides of the cutter are provided with the auxiliary roller assembly; the cutter is provided with a vertical slide seat; a transverse slide seat is arranged on the vertical slide seat; one side of the transverse slide seat is provided with a buffer mounting rack; a cutter assembly is arranged below the buffer mounting rack; the cloth on the transport roller device passes the guide roller assembly, the auxiliary roller assembly, the press unit and the rolling device in sequence along the transport direction; the press unit can press tight the cloth on two sides of the tool rest, thus maximumly reducing the cloth deformation level, and ensuring the cutting process to be stable; the cutter assembly is provided with the buffer mounting rack, thus reducing bumps between the cutter and the tool rest in a cutting process, and reducing the cutter wearing.

The invention relates to a wind turbine generator set bearing fault feature extraction method based on vibration data. The method includes the steps of: 1. using a JADE algorithm to perform blind source separation on an observation signal, so as to obtain a source signal; 2. calculating kurtosis and negentropy of the source signal; 3. calculating a singular value of a source signal envelope matrix; and 4. utilizing a local linear embedding method to extract fault features. The wind turbine generator set bearing fault feature extraction method based on vibration data combines the blind source separation with the local linear embedding method, and is particularly suitable for rotary mechanical equipment such as a bearing; and the method can effectively eliminate noise mixed in a bearing vibration signal process, and separate a fault source signal, thereby providing more accurate information for fault feature extraction.

The invention relates to an intelligent air purifier with excellent circulation performance based on Internet of Things. The intelligent air purifier comprises a shell and a chassis, wherein the shellis fixed above the chassis; the shell is internally provided with an air inlet tank, a filtering mechanism, a treatment mechanism and an air outlet tank; the chassis is internally provided with a bottom plate, a power mechanism and two adsorption mechanisms; the filtering mechanism comprises a filtering tank and a cleaning component; the adsorption mechanisms comprise exhaust fans, exhaust tubes,air outlet tubes, lifting tubes, connecting tubes and suckers. According to the intelligent air purifier with excellent circulation performance based on Internet of Things, a filtering net is cleanedthrough the cleaning component, so that the circulation capability of air flowing through the filtering net is improved, the frequency of replacing the filtering net is reduced, and the cost is reduced; compared with a conventional cleaning component, the cleaning component is capable of intelligently changing a working direction and is relatively high in working efficiency, and in addition, theadsorption mechanisms are supported by the power mechanism to be adsorbed to the ground, then the air purifier is prevented from being pushed down, security accidents are avoided, and the stability ofthe air purifier is improved.

The present invention relates to a method of replacing a valve by a well-controlled pressure, and belongs to the method of oil and gas field wellhead practices. The present invention is aimed at resolving the problems that the damaged valves of the oil and gas field wellhead equipment are not replaced easily or the process of the replacement in the prior art is time-consuming, laborious and costly; the operational steps are like that: an under bed assembly is positioned over the end of the oil pipe; a lifting bracket which can move upwards and downwards is arranged at the under bed assembly;. a blanking plug assembly with a lifting pole which can move upwards and downwards is arranged on the lifting bracket; And a self-sealed head assembly and a double-flange short section assembly which can be pressed are covered outside the lifting pole; the lifting pole first extends downwards into an oil pipe loop and then lifts upwards, so that the sealing ring covered outside the lower part of the lifting pole is expanded to block the inner diameter of the oil pipe loop; the damaged valve can be disassembled and taken out from the top end of the lifting pole, and then a new valve can be positioned at the oil pipe loop from the top end of the lifting pole; and after the finish of the equipment of the new valve, the elements mentioned above can be disassembled, and the replacing valve practice by well-controlled pressure is finished. The present invention can be used in the replacing valve by well-controlled pressure in oil and gas field wellhead practices.

The invention discloses a compact type RO (reverse osmosis) water purifier filter element. The compact type RO water purifier filter element comprises a filter flask body and a filter flask cap, wherein a composite filter element is arranged in the filter flask body, and a raw water inlet, a concentrated water outlet and a pure water outlet are formed in the filter flask body; the composite filter element comprises an RO membrane filter element or a nanofiltration membrane filter element, a front filter element coaxial with the RO membrane filter element or the nanofiltration membrane filter element is arranged outside the RO membrane filter element or the nanofiltration membrane filter element, a rear filter element accommodating cavity is formed in an upper filter element cap, a rear filter element is accommodated in the rear filter element accommodating cavity, and the pure water outlet communicated with the rear filter element is formed in the filter flask body. According to the compact type RO water purifier filter element, the front filter element, the rear filter element as well as the RO membrane filter element or the nanofiltration membrane filter element are integrated in the filter flask body, so that the number of the filter elements can be reduced, the filter effect is good, the space occupied by the whole machine is reduced, meanwhile, the door-to-door replacement frequency of the filter elements by service staff can be reduced, and the maintenance cost is reduced.

The invention provides synthetic compressor lubricant for compressing a multi-component hydrocarbon mixture gas. The synthetic compressor lubricant consists of polyalkalene glycol synthetic oil serving as base oil and an additive. The synthetic compressor lubricant comprises the following components in percentage by weight: 90 to 97 percent of polyalkalene glycol synthetic oil, 0.05 to 2 percent of antioxidant, 0.01 to 2 percent of anti-rusting agent, 0.5 to 3 percent of oiliness agent, 0.01 to 0.5 percent of metal passivator, 0.5 to 5 percent of extreme-pressure antiwear agent and 0.001 to 0.01 percent of antifoaming agent. The synthetic compressor lubricant can resist dilution of a hydrocarbon gas to a lubricant, can adapt to the compression to the hydrocarbon gas, has good compatibility with a water vapor-containing gas mixture, and meets special requirement on the oil for a multi-component hydrocarbon mixture (such as flare gas) compressor system. The problem of dilution of the multi-component hydrocarbon mixture gas (such as the flare gas or gas) to the lubricant is successfully solved; accidents, such as stop, shaft locking and the like, of a compressor, caused by reducing of viscosity, are radically avoided; and the work stoppage loss and the worker labor intensity of enterprises are reduced.