51results about How to "Extend continuous use time" patented technology

The invention relates to a Bluetooth communication technology, and particularly relates to a device communication method and system for a wireless communication system. The method comprises the stepsthat S100 slave equipment establishes a monitoring link for communication between master equipment and host equipment; S200 the slave equipment negotiates with the master equipment to enter a monitoring confirmation mode; the monitoring link enters a monitoring confirmation mode; the master equipment and the host equipment enter the monitoring confirmation mode; and S300 the communication link between the slave equipment and the master equipment exits the monitoring confirmation mode after information interaction is completed. The system comprises the master equipment carrying a Bluetooth communication protocol, the slave equipment and the host equipment. According to the invention, the power consumption of the master equipment and the slave equipment can be reduced by reducing one link, which is helpful for reducing the burden overhead of the equipment and improving the user experience.

The invention relates to a molten-state lead-free welding flux anti-oxidation reducing agent and a preparation process thereof, which comprise a reducing agent, an antioxidant and a dispersing accelerating agent. The preparation process includes: placing the weighed reducing agent into a stainless steel container, heating the container until the reducing agent is completely melted into liquid, keeping temperature within 100 DEG C-155 DEG C; then stirring and slowly adding the weighed antioxidant into the container at an even speed, adding the dispersing accelerating agent after stopping heating, and further stirring to obtain the molten-state lead-free welding flux anti-oxidation reducing agent. The molten-state lead-free welding flux anti-oxidation reducing agent has the advantages of apparent anti-oxidation effect, high reducing efficiency, long continuous service time, small smoke, no unpleasant odor, and economical and practical properties.

The invention provides high-elongation rubber for a joint. The high-elongation rubber comprises the following components in parts by weight: 45-50 parts of ethylene propylene rubber, 30-45 parts of ethylene propylene diene monomer, 10-20 parts of liquid ethylene propylene rubber, 20-25 parts of zinc oxide, 50-55 parts of carbon black N330, 10-15 parts of paraffin oil 2280, 3.0-5.0 parts of an anti-aging agent and 2.0-7.0 parts of a vulcanizing agent. According to the invention, improvement is carried out on the basis of a common heat-resistant rubber formula, the liquid ethylene propylene rubber is added at the same time, and the loss of an anti-aging agent in the ethylene propylene rubber vulcanization process is changed through a correct anti-aging agent ratio, so that the anti-aging agent can inhibit the heat effect to the maximum extent, thereby maintaining the high elongation of the ethylene propylene rubber after aging and prolonging the service life of the rubber; and moreover, the rubber is not obviously changed after being aged for 800000 times of dynamic tests, that is, the rubber with high elongation is only gradually weakened by the elongation force instead of being directly applied to the stripping force under the same acting force, so that the aim of keeping the adhesive property unchanged after the rubber is aged can be achieved.

The invention relates to the technical field of pet monitoring, in particular to self-power-generation pet GPS positioning ID recognition equipment. The self-power-generation pet GPS positioning ID recognition equipment comprises an upper arc-shaped pipe and a lower arc-shaped pipe, the upper arc-shaped pipe and the lower arc-shaped pipe are connected with each other to form a ring through a connecting spring, an upper mounting cavity and a lower mounting cavity are formed in the upper arc-shaped pipe and the lower arc-shaped pipe respectively, a storage battery, a wireless communication module, a GPS positioning module, a microprocessor and an ID information module are mounted in the upper mounting cavity, a solar power generation module is further mounted on the upper arc-shaped pipe, anelectromagnetic induction power generation module is mounted on the lower arc-shaped pipe, a balance weight is further connected to the middle of the bottom of the lower arc-shaped pipe through a connecting rope, and LED lamps are further arranged on two sides of the bottom of the lower arc-shaped pipe. The self-power-generation pet GPS positioning ID recognition equipment is longer in continuoususe time, meanwhile, an ID recognition function is added, and the self-power-generation pet GPS positioning ID recognition equipment can be used for batch positioning and information management of pets and is worthy of popularization.

The invention discloses a process for separating and purifying polyphenylene sulfide. The process includes (1), separating the granular polyphenylene sulfide from mixtures with the polyphenylene sulfide by centrifugal machines, and mixing the remaining mixtures and diatomaceous earth with one another in mixing kettles to obtain mixtures A; (2), connecting outlets of the mixing kettles with pumps,connecting outlets of the pumps with regulating valves, connecting the regulating valves with plate hermetic filters, conveying the mixtures A to the plate hermetic filters by the pumps and filteringthe mixtures A to obtain solid materials and filter liquor B; (3), delivering the filter liquor B into rectification systems and rectifying the filter liquor B. The process has the advantages that theself-operated regulating valves and the plate hermetic filters are used with one another, the diatomaceous earth is applied to procedures for separating and purifying the polyphenylene sulfide, accordingly, the problems of pump and rectification tower blockage due to materials, the requirement on detaching tower equipment for clearing or washing the tower equipment and material leakage can be effectively solved by the aid of the process, product loss further can be reduced, environmental pollution can be abated, and the productivity can be improved.

The invention discloses a long-service-life balanced tundish which comprises a tundish main body. The tundish main body comprises a permanent layer, a work layer is arranged on the inner side of the permanent layer, work layer parts located on the tundish bottom, tundish wall and slag line portions are formed by laying different dry materials, and a plurality of brick cups are evenly arranged in the middle of a cavity of the work layer, the inlet end of the tundish main body is provided with an integral current stabilizer, the permanent layer of the tundish main body is fixedly provided with an impact plate located below the integral current stabilizer, the lower portion of the tundish main body is provided with a sliding block, and a water feeding port is fixedly arranged in the sliding block. Erosion of molten steel on the work layer, particularly scouring erosion to the work layer part near the impact area can be reduced, a combined sliding block zirconium core is adopted, the waterfeeding port is in close fit with the sliding block, steel clamping at the contact face position of the sliding block and the water feeding port is avoided, the service life of the water feeding portis prolonged, and therefore the purpose of effectively prolonging the continuous using time of the tundish is achieved.

The invention relates to a multi-electrode welding device for a metal shielding layer of a submarine cable. The multi-electrode welding device for the metal shielding layer of the submarine cable comprises a mounting disc, a central electrode assembly vertically arranged in the centre of the mounting disc, and side electrode assemblies which are annularly distributed in an array around the centralelectrode assembly; an electrode drift angle adjustment mechanism is arranged between the side electrode assemblies and the mounting disc; and the side electrode assemblies and the central electrodeassembly are of the same structures and are all provided with an electrode height adjustment up-down mechanism. According to the multi-electrode welding device for the metal shielding layer for the submarine cable, the arc stability is improved and the welding accident risk is reduced through combined work of a plurality of electrode assemblies; a plurality of electrodes shunt current, so that thetemperature of the electrodes is reduced, the burning rate of a tungsten needle is reduced, the continuous use time of the tungsten needle is greatly improved, the production capacity is improved, and the continuous service life of the electrodes can be prolonged by 4 to 6 times compared with a single gun welding system; and a metallurgical reaction of a molten pool is improved through welding preheating, so that the quality of a welding seam is improved, and the quality of the submarine cable is ensured. The focusing degree of the plurality of the electrode assemblies can be adjusted freelyso as to obtain the best welding manufacturability.

The invention discloses an online ash removal device of an intelligent fan rotor. The online ash removal device comprises a liquid source, a compressed gas source, an electrical control system, a gas-liquid control cabinet, a control cable and a gas-liquid composite nozzle; the liquid source and the compressed gas source have certain pressure; the pressure of the compressed gas source is higher than that of the liquid source; a gas inlet and a liquid inlet are formed in the gas-liquid composite nozzle; the liquid source and the compressed gas source communicate with the liquid inlet and the gas inlet of the gas-liquid composite nozzle respectively through pipelines; the electrical control system and the gas-liquid control cabinet are used for controlling the compressed gas source and the liquid source respectively; and the acute angle formed by the axis of the gas inlet of the gas-liquid composite nozzle and the axis of the liquid inlet is theta1. The online ash removal device can realize the effects of preventing the fan rotor from accumulating ash and timely cleaning ash adhering to the surface, online ash removal under the conditions that the fan rotor does not stall and equipment is not shut down can be realized, and the use cycle of the fan rotor is prolonged.

The invention discloses a fuel gas double-head and single-tail frying furnace. The fuel gas double-head and single-tail drying furnace comprises a furnace body. A worktable is arranged on the furnace body. A furnace support is arranged on the worktable. A first cooking range and a second cooking range are arranged on the inner side of the furnace support. Contact rings are arranged on the first cooking range and the second cooking range. A water storage oven is arranged on one sides of the first cooking range and the second cooling range, and a fume suction device is arranged on the other side of the water storage stove. A gas collecting cover is arranged on the fume suction device, and a gas suction opening is formed in the gas collecting cover. A fume collecting pipe is arranged in the fume suction device, and a fume exhauster is arranged on the other side of the fume suction pipe. An oil accumulation chamber is arranged in the fume exhauster, and a first filtering net is arranged on one side of the oil accumulation chamber. A draught fan is arranged on the other side of the first filtering net, and a motor is arranged on the other side of the draught fan. The fuel gas double-head and single-tail frying furnace is reasonable in structure and convenient to use, due to the fact that a cooking fume treatment device is arranged, cooking fumes generated during use are sucked and treated, the kitchen environment is improved, and the work efficiency is better improved.

The invention provides ventilation and dust removal equipment for coal mine operations, comprising: a dust collecting tube, a second collecting hopper and a dust collecting cloth bag; the position below the outer wall of the dust collecting tube is welded with the support frame, and the bottom end surface of the dust collecting tube A dust collection bucket is fixedly connected by bolts; a first collection bucket and a second collection bucket are sequentially welded on the bottom end surface of the air intake pipe from left to right. In the present invention, through the cooperative setting of the sliding seat and the dust removal brush, on the one hand, through the rotation of the main body of the dust collection cylinder, the dust removal brush can clean the dust on the outer surface of the dust collection bag. The cleaning method of the dust bag, secondly, can prolong the continuous use time of the dust bag, and reduce the disassembly and cleaning time to a certain extent. When cleaning, the dust removal brush can be removed for cleaning.

The invention relates to a downhole power screw drilling tool, which is composed of a bypass valve assembly, a motor assembly, a cardan shaft assembly, a transmission shaft assembly, a drill joint and a stabilizer sleeve. The motor assembly includes an outer tube , helical stator rubber, and helical rotor, the helical stator rubber is fixed on the inner wall of the outer tube, the helical rotor is located in the helical stator rubber, and the bypass valve assembly is used to convey Slurry, a plurality of uniformly distributed spherical media is filled between the helical rotor and the helical stator rubber, and the spherical media and the helical stator rubber are made of the same material. This solution reduces the friction between the rotor and the stator rubber by introducing a medium in the form of the stator rubber material, thereby reducing the temperature of the stator rubber.

The invention discloses a method for reducing power consumption of WAPI mobile terminal and a WAPI mobile terminal, comprising: caching the received WAPI business in a dynamic cache module, during theprocess of caching WAPI business data, and the data volume of cached WAPI business data is accumulated to the threshold of the data volume set by the WAPI mobile terminal, the processor module of theWAPI mobile terminal processing the cached WAPI business data. The WAPI mobile terminal comprises a WAPI communication module and a processor module which are connected; a storing module connected with the processor module, further comprises a dynamic cache module respectively connected with the WAPI communication module and processor module. The invention can effectively reduce the overall powerconsumption of the mobile terminal, reduce the workload of the processor, save the electrical quantity of the mobile terminal and prolong the continuous service time.

The invention discloses a process for separating and purifying polyphenylene sulfide. The process includes (1), separating the granular polyphenylene sulfide from mixtures with the polyphenylene sulfide by centrifugal machines, and mixing the remaining mixtures and diatomaceous earth with one another in mixing kettles to obtain mixtures A; (2), connecting outlets of the mixing kettles with pumps,connecting outlets of the pumps with regulating valves, connecting the regulating valves with plate hermetic filters, conveying the mixtures A to the plate hermetic filters by the pumps and filteringthe mixtures A to obtain solid materials and filter liquor B; (3), delivering the filter liquor B into rectification systems and rectifying the filter liquor B. The process has the advantages that theself-operated regulating valves and the plate hermetic filters are used with one another, the diatomaceous earth is applied to procedures for separating and purifying the polyphenylene sulfide, accordingly, the problems of pump and rectification tower blockage due to materials, the requirement on detaching tower equipment for clearing or washing the tower equipment and material leakage can be effectively solved by the aid of the process, product loss further can be reduced, environmental pollution can be abated, and the productivity can be improved.

The present invention proposes a SCDMA network drive test method, which adopts the parallel mode of the auxiliary thread and the main thread, and comprises the following steps: (1) after the test starts, the PC receiving buffer is initialized, and the thread control variable is initialized; (2) the mobile phone is tested to send data; GPS also sends position data; (3) PC receives data through USB to multiple serial ports, if the thread is still running, then reads the serial port asynchronously, and then stores the data in the buffer; (4) performs data analysis, If valid data is parsed, a message is sent to the main thread to notify the interface to refresh, and the message includes the starting position and length of the data. The invention can provide uninterrupted power supply to the GPS receiver, can more accurately measure the performance of the SCDMA outdoor network, and can also support various tests of multiple mobile phones.

The invention discloses a hybrid iron core motor, which relates to the technical field of motor structure and comprises a fixed iron core and an iron ferrite body. The iron body is stacked alternately, the fixed iron core and the ferrite body are screwed together by studs, and a speed change assembly is fixedly installed on the side of the fixed iron core at one of the outermost ends, and the speed change assembly includes a sun gear, and the inside of the sun gear is slidingly installed with a The adjustment rod is rotatably connected with a toggle bracket on the outer surface of the adjustment rod. The invention can realize automatic mechanical speed regulation and increase torque through the speed change component; through the combination of its own iron core, it can realize free replacement and realize the adjustment of magnetic permeability; through the heat dissipation component, the continuous use time of the motor can be increased and the motor can be reduced Heat loss, thus more energy saving.

The present invention provides a method for producing a hydrocarbon oil, including performing a hydrocracking by continuously feeding, to a hydrocracking reactor containing a hydrocracking catalyst, a wax to be processed including: a raw wax containing 70% by mass or more of straight-chain hydrocarbons with a boiling point of higher than 360°C; and an uncracked wax containing 70% by mass or more of straight-chain hydrocarbons with a boiling point of higher than 360°C, which uncracked wax is separated from a hydrocracking product discharged from the reactor, to thereby yield a hydrocarbon oil hydrocarbons with a boiling point of 360°C or lower, wherein the following periods are alternately provided: a period for performing hydrocracking of the wax to be processed under a condition where a cracking rate defined by the following formula (1) is X 1 (%) satisfying the following formula (2); and a period for performing hydrocracking of the wax to be processed under a condition where the cracking rate is X 2 (%) satisfying the following formula (3), and