48results about How to "Rapid liquefaction" patented technology

The invention discloses a method for preparing biodegradable rigid polyurethane foam with liquefaction products of bamboo waste, which comprises the following steps: 1 mass portion of crude glycerin / polyethylene glycol liquefying solvent and 0.02-0.04 mass portion of concentrated sulfuric acid are added into a reaction vessel, heated till the temperature reaches 120-180 DEG C after a reflux condensation tube is connected to the reaction vessel; 0.2-0.5 mass portion of crushed and dried bamboo waste is added, reacted for 90-180min with stirring, taken out and cooled and neutralized by MgO tillbeing neutral; 1 mass portion of liquefaction products of bamboo waste, 0.02-0.08 portion of a dibutyl tin dilaurate / triethylene diamine mixed catalyst, 0.02-0.06 portion of silicone oil, 0.02-0.1 portion of water and 0.1-0.15 portion of fire retardant are added into a container, premixed for 20-30s when stirred at 2,000r / min, added with sufficient PAPI with the molar ratio between isocyanato-NCOin PAPI and hydroxyl group-OH in bamboo waste liquefaction products being 0.6-1.2, stirred for 10s-15s at 1,000r / min, put into a mould, foamed with standing at room temperature, placed for slaking and mould separating at room temperature for 24h-72h after reaction. The method fully utilizes resources, reduces liquefaction cost, and has a mild reaction temperature and stable liquefaction products;the performance of obtained foam meets the national standard and biodegradability.

The invention belongs to the technical field of aluminum alloy production equipment and particularly provides a quenching device for an aluminum alloy circular pipe. The quenching device comprises a solid dissolving chamber and a cooling chamber. A partition plate is arranged between the solid dissolving chamber and the cooling chamber. Multiple heating devices are arranged in the solid dissolvingchamber. Multiple water spraying devices are arranged in the cooling chamber. A roller cylinder is arranged on the inner wall of the cooling chamber and penetrates through the water spraying devices.According to the quenching device, by arranging the water spraying devices, the multiple water spraying devices in the horizontal direction can achieve multi-station quenching, quenching efficiency is high, when all the stations work, the water spraying devices on the adjacent stations are arranged in a staggered manner, the water spraying devices above and below can spray water to the dead angleportion between the two adjacent water spraying devices on a current supporting pipe, uniformity is good, the probability of deformation and breakage of the circular pipe due to uneven stress causedby heat expansion and cold shrinkage of metal is reduced, meanwhile, the water spraying devices can be folded upwards before spraying water, the tops of the water spraying devices can be stretched after cooling the circular pipe, the circular pipe can be taken out upwards conveniently, and friction between the circular pipe and the roller cylinder is reduced.

The invention discloses a preparation method of an inorganic compound sodium selenide and a device of the preparation method. The preparation method comprises the steps of: (1) putting metallic sodium and elemental selenium in a reactor in a vacuum glove box, (2) highly vacuumizing, charging nitrogen to, cleaning and highly vacuumizing the reactor repeatedly for 3-4 times, (3) charging liquid ammonia to allow metallic sodium to be completely dissolved in liquid ammonia, (4) discharging gasified ammonia from the reactor via high-purity nitrogen, (5) stirring, (6) after gasifying liquid ammonia, vacuumizing the reactor, and (7) heating the reactor, then cooling to the room temperature, and taking a material to obtain a sodium selenide finished product. According to the preparation method, metallic Na and elemental Se are isolated from air all the time from a proportioning stage to a combination reaction course, and the purity of raw materials and synthesized sodium selenide and the safety in a reaction course are effectively ensured. At the same time, the device realizes a complete preparation technical flow of sodium selenide synthesis, ammonia volatilization, in situ synthesized polycrystal drying and the like.

The invention discloses a process for precooling, expanding and liquefying natural gas. The process includes (a), compressing nitrogen at two stages, then cooling the compressed nitrogen by the aid of coolers, and precooling the cooled compressed nitrogen in multi-stream heat exchangers; (b), expanding the nitrogen by the aid of turbo expanders and filling backflow to heat exchangers; (c), secondarily expanding the nitrogen by the aid of the turbo expanders and sequentially filling backflow to the heat exchangers; (d), compressing and pressurizing propane by the aid of propane compressors; (e), enabling the pressurized propane to flow through water coolers; (f), performing cooling and depressurization to generate a gas phase and a liquid phase, filling the gas phase and the liquid phase into the multi-stream heat exchangers and precooling the natural gas and high-pressure refrigerants by the aid of the multi-stream heat exchangers; (g), cooling the natural gas by the heat exchangers at first; (h), depressurizing and cooling the cooled natural gas by the aid of throttle valves to generate a gas phase, and storing the remaining liquid phase in liquefied natural gas storage tanks; (i), filling the gas phase as backflow gas into the heat exchangers to provide cooling capacity for the heat exchangers, reheating the backflow gas and using the reheated backflow gas as regenerated gas for purifiers for pre-treating the natural gas. The process has the advantages that the natural gas can be quickly liquefied, and power consumption and the cost are low.

The invention relates to a heat energy water circulation system capable of promoting circulating water flowing for heat transfer through water vapor, and aims to provide the heat energy water circulation system which is used for water heating blankets, cushions, quilts, water circulation thermal therapy clothes and the like and has a high heating speed, a high water discharging speed, a low water discharging temperature, a high water circulation speed, a good water return property, high work efficiency and capability of promoting circulatory heat transfer. A water storage tank is communicated with a water return port in a heating container through a water return one-way valve, a water outlet in the heating container is communicated with one end of a water outlet connection pipe, the other end of the water outlet connection pipe is communicated with one end of a radiating pipe, the other end of the radiating pipe is communicated with one end of a water inlet connection pipe, and the other end of the water inlet connection pipe is communicated with the water storage tank; the water return port in the heating container is higher than the water outlet. When an electric heating element is used for heating, the temperature of the area around the water return port in the heating container is higher than that of the area around the water outlet; the cross sectional area of the water return port in the heating container is smaller than or equal to 28 mm<2>; the water return port in the heating container and a heating container body are in insulated connection.

The invention discloses a household water purifier with good water purification effect, which comprises a casing, a filter box is arranged at the bottom inside the casing, and an active carbon filter layer, a PP rope filter layer and silica gel are arranged inside the filter box sequentially from top to bottom. Granular filter layer, the top of the filter box is connected with a water diversion pipe, the upper end of the water diversion pipe is connected with a heating box, the lower end of the heating box is connected with a hot water pipe, the lower end of the hot water pipe is connected with a steam generator, and a cooling block is arranged inside the steam generator to generate steam. The left end of the steam pipe is connected with a steam pipe, and the left end of the steam pipe is connected with a condensation box. There is an evaporator inside the condensation box. The upper end of the evaporator is connected with a compressor, and the upper end of the compressor is connected with a radiator. A filter cartridge is connected, the right end of the filter cartridge is connected with a water outlet pipe, and the lower end of the middle part of the water outlet pipe is connected with a recoil pipe. The invention satisfies the standard of healthy drinking for human body, has good purification effect, meets the needs of household water, and is worthy of popularization and use.

The invention discloses an efficient distillation production device of turpentine oil. The efficient distillation production device comprises a furnace base, an electric heating furnace, a distillation reaction tower, a liquefaction tank, an oil-water separation tower and a cooler, wherein the electric heating furnace is arranged in the furnace base; the distillation reaction tower is arranged on the electric heating furnace; a motor is arranged at the upper part of the inner cavity of the distillation reaction tower; a motor shaft of the motor is fixedly connected with stirring rods; the top end of the distillation reaction tower is in through connection with a gas storage tank; the top end of the gas storage tank is in through connection with an exhaust cylinder; the outer side of the exhaust cylinder is sleeved with the liquefaction tank; a spiral cooling pipeline is arranged inside the inner wall of the liquefaction tank; cooling pipes are arranged in the cooler; a plurality of heat dissipation plates are uniformly arranged on the peripheral surface of each cooling pipe. According to the efficient distillation production device of turpentine oil, the liquefaction tank is directly connected with the distillation reaction tower through the exhaust cylinder, so that the evaporated oil gas can be rapidly liquefied; the production speed is improved; the productivity is improved; the accumulation of the oil gas in the distillation reaction tower is reduced; meanwhile, the gas storage tank can expand the inner space of the distillation reaction tower, so that the accumulation of the oil gas in the distillation reaction tower can be effectively prevented.

The invention discloses a device and a method for recycling nitrogen of an annealing furnace. The device comprises a heat preservation foundation, a pre-release nitrogen annealing furnace, a first air pump, a condensation tank, a sealing plate, an oil drainage bolt, an oil filter screen, an air source filter, a pressure measuring probe, a second air pump, a temperature control tank, a first inductance coil, a second inductance coil, a third inductance coil, a fourth inductance coil, a first temperature measuring probe, a second temperature measuring probe, a third temperature measuring probe, a fourth temperature measuring probe, a third air pump, an electromagnetic reversing valve, a nitrogen storage tank, a nitrogen generator, a first servo valve, a second servo valve, a third servo valve, a fourth servo valve, a fifth servo valve, a pre-introduced nitrogen annealing furnace and a ventilation pipeline; waste gas in the pre-released nitrogen annealing furnace passes through the condensation tank and the temperature control tank to sequentially achieve purification and precise temperature control of nitrogen in the working process, finally, the nitrogen is directly introduced into the pre-introduced nitrogen annealing furnace, so that a set of complete industrial process is efficiently and orderly realized, and the purpose of recycling the nitrogen of the annealing furnace is fulfilled.

The invention discloses a jet oil removing device, and relates to the oil stain absorbing technology of a smoke exhauster. The jet oil removing device can solve the problems that the smoke exhauster is poor in oil removing effect and large in workload. The jet oil removing device comprises a fan, a vapor generation device and a vapor feeding nozzle, wherein the fan, the vapor generation device and the vapor feeding nozzle are sequentially connected. The fan and the vapor generation device are located under a cooking bench surface, the vapor feeding nozzle is arranged on the upper portion of the cooking bench surface in front of a cooking bench, the vapor feeding nozzle is connected with the vapor generation device through a vertical vapor feeding pipeline and a horizontal vapor feeding pipeline, the vapor feeding nozzle is provided with a flat nozzle body, the front end of the flat nozzle body is of an inner arc shape, the two side walls of the nozzle body extend outward to form a certain included angle, and the vapor jetting direction of the nozzle body is towards a side absorbing opening. The vapor feeding device is arranged, so that the oil fume diffusion range can be limited, oil fume and vapor can condense quickly to from liquid, the oil fume absorbing effect is improved, and meanwhile workload of an oil filtering device is reduced.

The invention provides a device for achieving thermocatalytic efficient reduction and reclamation of organic wastes. An organic waste feeding system is connected to a proportioning kettle material inlet, the proportioning kettle material outlet is connected to a pre-reaction kettle and the material inlet of a primary reaction kettle, the material outlet of the pre-reaction kettle is connected to the material inlet of the primary reaction kettle, the material outlet of the primary reaction kettle is connected to the material inlet of a cooling kettle, and the material outlet of the cooling kettle is connected to a solid-liquid separation system; a part liquid outlet of the solid-liquid separation system is connected to a water treatment system, and the liquid outlet of the water treatment system is separately connected to the proportioning kettle, the pre-reaction kettle and the material inlet of the primary reaction kettle; a jacket of the primary reaction kettle is connected to a heat source system; the steam outlet of the primary reaction kettle is connected to the proportioning kettle and the steam inlet of the pre-reaction kettle, and the steam outlet of the cooling kettle is connected to the steam outlet of the proportioning kettle; and the cooling water inlet and outlet of the proportioning kettle are connected to the cooling water outlet and inlet of the cooling kettle. The reduction effect of the organic waste is good, a catalyst can be recycled, and the solid product after reaction can be recycled.

The invention provides an oil mist environment test box exhaust gas treatment device. The device comprises a servo motor, an oil gas check body and a separating head. The lower end of the servo motoris fixedly connected to the center of the plane of the top of a rectangular oil-gas separation chamber through bolts. A rotation shaft of the servo motor is rotatingly connected to the interior of theoil-gas separation chamber through sealing bearings at the upper and lower ends and is fixedly connected to a separating paddle. The lower ends of the left end side wall and the right end side wall of the oil-gas separation chamber are respectively fixedly connected to the top end of an oil collector. Through cooperation of the above structures, the device can reasonably treat tail gas after thetest and reduce the oil and gas damage to the laboratory environment and the experimental personnel.

The invention provides an oil mist environment test box exhaust gas treatment device. The device comprises a servo motor, an oil gas check body and a separating head. The lower end of the servo motoris fixedly connected to the center of the plane of the top of a rectangular oil-gas separation chamber through bolts. A rotation shaft of the servo motor is rotatingly connected to the interior of theoil-gas separation chamber through sealing bearings at the upper and lower ends and is fixedly connected to a separating paddle. The lower ends of the left end side wall and the right end side wall of the oil-gas separation chamber are respectively fixedly connected to the top end of an oil collector. Through cooperation of the above structures, the device can reasonably treat tail gas after thetest and reduce the oil and gas damage to the laboratory environment and the experimental personnel.