78results about How to "Reduce warm-up" patented technology

The invention discloses an aluminum alloy medium plate preparation method. The aluminum alloy medium plate preparation method comprises the following steps of: smelting at 700-750 DEG C, degassing a melt by adopting a multistage degassing purification system, and filtering the melt by adopting a 300ppi-foamed ceramic filtration plate; casting the melt to obtain an aluminum alloy ingot blank, and carrying out stress-relieving treatment at 300-500 DEG C for more than or equal to 1 hour; controlling the temperature of a saw cutting aluminum alloy sheet at 350-500 DEG C, carrying out solution treatment for more than or equal to 0.5 hour, controlling the tensile deformation at 1%-4%, controlling the temperature of the aluminum alloy sheet at 50-300 DEG C, and carrying out aging treatment for 2-40 hours to obtain an aluminum alloy medium plate. Compared with the aluminum alloy medium plate prepared by a conventional hot-rolling method, the aluminum alloy medium plate prepared by the method has the advantages that the preparation working procedures are reduced, the production cycle is short, the cost is reduced, the plate has good quality and high strength and meets the market requirements, and the good economic benefits and social benefits are achieved.

The invention discloses a heating and decentralized air-conditioning system for a teaching or office building and a control method; in the system, an operation terminal is connected with a server through a first network; the server is connected with a regional manager group through a second network; all regional managers are connected with all on-site controllers in corresponding on-site controller groups through data communication lines; all the on-site controllers are arranged in all the rooms of the teaching or office building; all the on-site controllers are connected with radiators in the rooms; radiator electric two-way valves are arranged on hot water inlet pipes of the radiators; the method comprises the steps that: centralized control is realized by networking, so that heat supply, room temperature as well as heating and decentralized air-conditioning of all the rooms in the teaching or office building are controlled in real time, the heating or refrigeration speed is high, the automation of heating and decentralized air-conditioning of the teaching or office building can be effectively improved, the purpose of energy saving is achieved, and heating or refrigeration are truly realized.

The invention relates to an energy-saving and environment-friendly printer, comprising a printer body and a drying device (10). The energy-saving and environment-friendly printer is characterized in that the drying device (10) comprises an oven cap (20) and a base (50), and is provided with a printing product inlet (03) and a printing product outlet (04); the oven cap (20) is provided with a drying cavity (13) and a recovering cavity (14); an air supply unit (60), a heat pump condenser (88) and a refrigerating evaporator (96) are arranged in the oven cap (20); the air supply unit (60) comprises a fan (30) provided with an air inlet channel (63), an air exhaust channel (64) and an air outlet channel (68) to form an air blowing and circulating system; the heat pump condenser (88) is installed in the air supply unit (60), and the refrigerating evaporator (96) is installed in the recovering cavity (14). In the invention, drying equipment is firstly reformed, and an air channel with skillful interior is utilized to replace the original air channel with complicated structure and signal function, thereby the effects of compact structure, space saving and reduction of material consumption are achieved.

The invention discloses a method for friction stir welding of high-strength aluminum alloy. A finished welding part is subjected to cold spraying treatment synchronously while a high-strength to-be-welded aluminum alloy part is subjected to friction stir welding, and thus a cold spraying layer is formed at the position of a high-strength aluminum alloy welding joint. The method for friction stir welding of the high-strength aluminum alloy not only can improve stress corrosion resistance of the friction stir welding joint conveniently and effectively and prolong service life of the friction stir welding joint, but also can reduce treatment process, improve treatment efficiency and save treatment time, and is stable and reliable in treatment effect, economical and practical.

The invention relates to a combustor capable of quickly realizing flameless combustion. The combustor comprises a center fuel gas spraying pipe, a loop fuel gas spraying pipe coaxially sealed outside the center fuel gas spraying pipe, two symmetric air spraying pipes symmetrically arranged at the two sides of the loop fuel gas spraying pipe in parallel, a loop air spraying pipe arranged outside the loop fuel gas spraying pipe and the symmetric air spraying pipe, and a flame stabilizing blunt body, wherein the loop air spraying pipe and the loop fuel gas spraying pipe are coaxially arranged; the flame stabilizing blunt body is detachably connected to the front ends of the center fuel gas spraying pipe and the loop fuel gas spraying pipe, and is provided with a center fuel gas nozzle communicated with the center fuel gas spraying pipe, more than two peripheral fuel gas nozzles positioned around the center fuel gas nozzle and communicated with the loop fuel gas spraying pipe and two air nozzles symmetrically arranged at the two sides of the center fuel gas nozzle; the two air nozzles are communicated with the two symmetric air spraying pipes; an annular projection is arranged at the front end of the flame stabilizing blunt body; the outer diameter of the annular projection is equal to the inner diameter of the loop air spraying pipe; and a distance is left between the annular projection and the front end of the loop air spraying pipe.

The invention discloses a process for high-efficiency molding of a composite plate spring. The process comprises the following steps: (1) subjecting a plate spring to modeling and carrying out layeredmodeling on a plate spring model from bottom to top; (2) preparing a curved-surface workbench according to each single-layer model; (3) separately carrying out paving and pasting on each curved-surface workbench by using an automatic tape laying machine so as to form a whole piece of a blank material and cutting the whole piece of the blank material with a cutting machine so as to form a plurality of single blank materials with the same structure; and (4) piling up the plurality of single blank materials and carrying out compression molding so as to form the plate spring. With such a technical scheme, the process for high-efficiency molding of the composite plate spring greatly improves the production efficiency of the composite plate spring prepared through molding and can realize automatic batch production of the composite plate spring.

A new process for directly melting fiber-reinforced thermoplastic composite material relates to a new technology for forming the fiber-reinforced thermoplastic composite material. The technical proposal of the invention combines the process of directly melting and dipping the fiber-reinforced thermoplastic composite material with a molding process, and directly melts the thermoplastic resin and accessories and adds the molten materials to a mould for one-step molding. The proportions of the raw materials are as follows: 50-65% of acrylic resin, 28-35% of glass fiber, 0.5-2.0% of silicane coupling agent particles, 0.5-1% of bismaleimide, 0.05-0.1% of ultraviolet absorbent, 1-2% of antioxidant and 5-8% of packing. The specific process comprises batching, heating for soaking, press molding and demolding to obtain the blank of the fiber-reinforced thermoplastic composite material. The process has the advantages of forming by only one single heating process with low energy consumption; reducing intermediate links of batching storage, transport, preheating and the like, reduced energy consumption and manpower, lower production cost, high degree of batching freedom and small fiber attrition, and the process can more easily realize reuse of the recycled wastes.

The invention relates to a solar energy sea water desalination system which comprises an evaporation-coagulation housing, a desalination mechanism adopting a sandwich structure, a solar panel and a scale inhibitor feeding device, wherein the evaporation-coagulation housing adopts an open box-packed structure; a transparent baffle is arranged at the open end of the evaporation-coagulation housing; a support rack is arranged in the evaporation-coagulation housing; the desalination mechanism is fixed on the support rack, and divides the interior of the evaporation-coagulation housing into an upper vapor cavity and a lower fresh water cavity. The solar energy sea water desalination system has the advantages that the structure is compact; sea water desalination can be realized without external power or electricity input; the design is simple; sea water can be supplied in a real-time manner via capillary force; a sunny side is adopted for evaporation to produce vapor, while the shadier side is adopted for coagulation to recover latent heat, that is, twice utilization of energy is realized, and fresh water yield is improved.

The invention discloses a granular iron preparation system and method. The granular iron preparation system comprises a slag melting device, a granulator, a reduction roasting device, a magnetic separation device and a gravity concentration device. By the system, melted copper slags are taken as raw materials, the problem that the traditional high-temperature copper slags only can be continued being treated after being cooled by water quenching or cooled slowly is solved, high-grade granular iron and zinc oxide dust can be prepared, and the heat utilization rate of the system is high. In addition, an additive inlet is formed in the slag melting device, an additive is added in the high-temperature melted copper slags before heating treatment, the melted copper slags can be homogenized after being stirred by a stirrer, the interior structures and chemical components of the copper slags are adjusted directly, the metallurgical performance of the copper slags is improved, then the copper slags are granulated at high temperature, so that granulated copper slag raw materials can be provided for direct reduction of a rotary hearth furnace, technologies such as pelletizing, drying and pellet preheating are omitted, the reduction time of the rotary hearth furnace is shortened, and the energy consumption of the rotary hearth furnace is reduced.

The invention discloses a method for repairing core rods for rolling seamless steel pipes. The method comprises the following specific steps: (1), cleaning and detecting before repairing; (2), machining before repairing; (3), detecting before surfacing; (4), surfacing and preheating; (5), surfacing to recover the size; (6), carrying out heat treatment after surfacing; (7), machining after surfacing; (8), detecting before laser cladding; (9), carrying out high-speed laser cladding by carrying out strengthening treatment on the surfaces of core rods by adopting high-speed laser cladding, wherein the used powder material is alloy powder with excellent wear resistance, corrosion resistance and plasticity and toughness; (10), machining after cladding; and (11), detecting finished products. According to the method, the wear resistance, the corrosion resistance and the cold and hot fatigue resistance of the core rods can be greatly improved; the service life of the core rods reaches more than 1.5 times of that of a new product; meanwhile, the whole repairing and manufacturing process is green and pollution-free.

The invention provides a serial-connection breath-type double-plate cabin solid carbon fuel cell stack and a power generation method thereof, belonging to the technical field of fuel cells. According to the cell stack, a plurality of groups of cell units are connected in series; each group of the cell units comprises an electrolyte cabin, a positive electrode plate cabin and a negative electrode plate cabin, wherein each positive electrode plate cabin and each negative electrode plate cabin are arranged in the electrolyte cabin; positive and negative pressure of positive electrode input gas and negative electrode input gas of the first group of the cell units and positive electrode output gas of the final group of the cell units can be provided by a breath device, and the exchanging of electrolyte in the cell is accelerated; the breath device is sufficiently utilized; a manner of setting each positive electrode plate cabin and each negative electrode plate cabin is adopted; each positive electrode plate cabin and each negative electrode plate cabin adopt a spiral pipeline design and a fuel channel is lengthened; meanwhile, the fuel concentration is matched with the surface area of an electrode so that the electrode efficiency and the fuel efficiency are improved. A positive electrode exhausting pipe of the cell stack is connected with the breath device; water steam exhausted by the positive electrode exhausting pipe can return back to a positive electrode gas inlet pipe and a negative electrode gas inlet pipe through the breath device; and extra pre-heating or heating is not needed so that energy sources are saved.

The invention discloses a graph network cold start recommendation method, which comprises the following steps of: inputting pre-scored user-article data into a trained graph network to obtain a recommendation result, the training comprising the following steps: acquiring a sampling local graph of a node set or a local sub-graph to be trained; performing distance re-marking on the sampling local graph to obtain a re-marked label; distributing initial features to nodes of the sampling local graph; obtaining a prediction label and a prediction score of the initial feature; calculating a node classification error by using the prediction label and the remarking label, and calculating a score prediction error by using the prediction score and the real score of the article-user; and performing calculating by using the node classification error and the score prediction error to obtain an overall error, and updating parameters of the graph network by using the overall error. According to the method, through local graph sampling and double-task learning, inductive node reasoning and connection prediction capabilities are further realized on the basis of a deductive graph reasoning task, and the method has a feature representation capability for out-of-graph nodes.

The invention relates to a method for using initial reaction heat of a crude gas transformation and hydrogen production process. A plurality of reaction areas in series operation are set in the crude gas transformation reaction process, the cooling process of intermediate reaction effluent of a front reaction area in which the total transformation ratio of carbon monoxide is 30 to 50 percent comprises a water injection and vaporization process, and the temperature rise of each reaction area is generally less than 60 DEG C, preferably less than 40 DEG C. The method has the advantages of optimization of reaction temperature distribution, high utilization rate of reaction heat, scale reduction of a hot water cyclic moistening system and the like, and is particularly suitable for the crude gas transformation and hydrogen production process of high carbon monoxide content (for example, higher than 12 percent volume).

The invention discloses a coffee machine and a working method thereof. The coffee machine comprises a shell, a water supply mechanism, an instant heating mechanism, a temperature control device and a coffee extraction mechanism, the water supply mechanism, the instant heating mechanism, the temperature control device and the coffee extraction mechanism are all installed in the shell, and the instant heating mechanism comprises a water inlet part and a water outlet part; the water inlet part and the water supply mechanism are connected through a water conveying pipe, the water outlet part and the coffee extraction mechanism are connected through a water conveying pipe, and the temperature control device detects the water temperature of the water outlet part. The coffee machine is high in coffee making efficiency, long-time waiting of consumers is avoided, the requirements of the consumers can be better met, and the consumption experience is improved.

The invention provides a parallel breath-type double-plate cabin solid carbon fuel cell stack and a power generation method thereof, belonging to the technical field of fuel cells. According to the cell stack, a plurality of groups of cell units are connected in parallel; each group of the cell units comprises an electrolyte cabin, a positive electrode plate cabin and a negative electrode plate cabin; each positive electrode plate cabin and each negative electrode plate cabin are arranged in the corresponding electrolyte cabin; positive and negative pressure of positive electrode input gas, negative electrode input gas and positive electrode output gas is provided by a breath device, and the exchanging of electrolyte in the cell is accelerated; a manner of arranging each positive electrode plate cabin and each negative electrode plate cabin is adopted; each positive electrode plate cabin and each negative electrode plate cabin adopt a spiral pipeline design and a fuel channel is lengthened; meanwhile, the fuel concentration is matched with the surface area of an electrode so that the electrode efficiency and the fuel efficiency are improved; and the structure is simple, the manufacturing is easy and the cost is relatively low. A positive electrode exhausting pipe of the cell stack is connected with the breath device; water steam exhausted by the positive electrode exhausting pipe returns back to a positive electrode gas inlet pipe and a negative electrode gas inlet pipe through the breath device, so that the utilization rate of water is improved; and extra pre-heating or heating is not needed so that energy sources are saved.

The invention relates to a system and a method for treating pulverized coal and a calcium-based raw material. The system comprises a pyrolysis unit, a gas purification unit, a hydrogasification unit and a calcium carbide smelting unit, wherein the pyrolysis unit comprises a pulverized coal and calcium-based raw material mixed pellet inlet, a raw coke oven gas outlet and a pyrolysis solid pellet outlet; the gas purification unit comprises a raw coke oven gas inlet and a purified coke oven gas outlet; the raw coke oven gas inlet is connected with the raw coke oven gas outlet; the hydrogasification unit comprises a pulverized coal spray nozzle, a purified coke oven gas spray nozzle, a coke residue outlet and an oil gas outlet; the purified coke oven gas spray nozzle is connected with the purified coke oven gas outlet; the calcium carbide smelting unit comprises a high-temperature solid pellet inlet, a calcium carbide furnace gas outlet and a calcium carbide outlet; the high-temperature solid pellet inlet is connected with the pyrolysis solid pellet outlet. According to the system and the method disclosed by the invention, by using the advantage of high quality and high hydrogen content of pyrolysis gas obtained by copyrolysis of coal and quick lime in a preheating furnace, the pyrolysis gas can be used as a hydrogen source of coal hydrogasification when calcium carbide is produced, so that the cost of the hydrogen source is reduced, and the thermal efficiency of the system is improved.

The invention provides a solar preprocessing assembly in a fresh air system of a central air conditioner and belongs to the invention field. By adopting the fresh air system, the problem of poor stability in the prior art is solved. The solar preprocessing assembly in the fresh air system of the central air conditioner is arranged between a main pipe and an air blower and comprises a base, supportrods, a solar photovoltaic panel, a storage battery and a heating component, wherein the base is plate-shaped; the lower ends of the support rods are fixedly connected onto the base and the upper ends of the support rods are connected with the solar photovoltaic panel; the storage battery is fixedly connected onto the base and is electrically connected with the solar photovoltaic panel through aconducting wire; and the heating component is located between the outer end of the main pipe and the air blower. The solar preprocessing assembly in the fresh air system of the central air conditionerhas high reliability.

The invention discloses a piston welding device and method. The device comprises a workbench, a first linear guide rail and a second linear guide rail. The workbench is provided with a fixing part matched with a lower end spigot of a piston and can drive the piston to rotate around the central axis of the piston. The first linear guide rail is located above the piston and is parallel to the long axis of the piston, a first welding gun used for welding a top seam is arranged on the first linear guide rail, and the first welding gun can move along the first linear guide rail. The second linear guide rail is parallel to the central axis and is located on the side face of the piston. The second linear guide rail is provided with a second welding gun used for welding a circular seam, and the second welding gun can move along the second linear guide rail. During actual use, the positions of the first welding gun and the second welding gun on the first linear guide rail and the second linear guide rail are adjusted respectively, then the top seam and the circular seam can be welded by rotating the workbench, and the working efficiency is improved.

The invention relates to a cracking device and specifically relates to a waste plastic cracking device. The waste plastic cracking device comprises a cracking furnace in which a cracking kettle is arranged, a cracking furnace support for supporting the cracking furnace and a plurality of burners arranged below the cracking furnace; a gas collecting pipe and a flue gas pipe are arranged at the top of the cracking furnace; a slag remover is arranged at the tail of the cracking furnace; a feeder is arranged in front of the cracking furnace; a feeder heating device is arranged under the feeder; a flame distribution pipe is arranged in the cracking furnace and located under the cracking kettle. The waste plastic cracking device is capable of overcoming the defects of the existing cracking device, realizing continuous and automatic feeding and reducing the labor intensity of a worker, and is high in cracking capability; large-scale production of the waste plastic cracking device can be realized.