66results about How to "Meet the temperature requirements" patented technology

The invention discloses a closed-type constant-temperature multi-layer water circulation turtle cultivation system which comprises a multilayer turtle cultivation pool devices, a cultivation water environment adjusting device, an indoor air environment adjusting device and a cultivation system operation control device, wherein the multilayer turtle cultivation pool device comprises a plurality of turtle cultivation pools, circulating water return pipes, circulating water outlet branch pipes and main circulating water outlet pipes, primary solid liquid precipitation devices, blow-down valves and pollution discharge blow-down pipes; the cultivation water environment adjusting device comprises a solid-liquid separator, a blow-down valve, a sterilizer, a protein separator, a biological filtering device or tank, a circulating pump and a water heating device; and the indoor air environment adjusting device comprises an air heating device, an air oxygenating device and an insulation building. According to the closed type constant-temperature multi-layer water circulation turtle cultivation system, turtle cultivation environments can be comprehensively controlled, the land, the water and the energy are saved, an optimal ecological environment suitable for turtles to rapidly grow is established, turtle cultivation is free of drugs, and healthy and safe food sanitation requirements are met.

The invention discloses a machining process for a zirconium alloy. The machining processing comprises the following sequential steps of: a hammer cogging working procedure, a beta-phase quenching working procedure, a graded annealing working procedure, an alpha-phase hot rolling working procedure, a middle annealing and cold machining working procedure, and a final finished-product board re-crystallizing and annealing working procedure, wherein the graded annealing working procedure comprises pre-annealing treatment; the re-annealing treatment specifically comprises the following steps of: carrying out the pre-annealing treatment on a water quenched product obtained by the beta-phase quenching working procedure under the environment in a temperature range of 400-700 DEG C for 0.1-3 hours; and carrying out annealing and heat preservation on a product obtained by the pre-annealing treatment under the environment in a temperature range of 500-800 DEG C for 0.5-5 hours. The machining process for the zirconium alloy disclosed by the invention enables second-phase grains in the zirconium alloy to be dispersed and distributed, so as to improve the plastic deformation capability of the zirconium alloy and improve the plastic machining capability of the zirconium alloy; and meanwhile, the machining process for the zirconium alloy further can improve the corrosion resistance of a core structural material prepared by the zirconium alloy in a nuclear reactor.

The invention provides a continuous forging heating furnace which comprises a furnace body, a heating mechanism and a machine frame; the furnace body and the heating mechanism is arranged on the machine body; the furnace body comprises a furnace chamber which runs through the furnace body; a furnace wall as well as the feeding end and the discharging end of the furnace body are correspondingly formed; a guide groove is formed in the furnace chamber; the heating mechanism comprises a plurality of burners; the burners are installed at the discharging end close to the furnace body and the top part of the furnace body, and enter into the furnace chamber through the furnace wall in a way that acute angles are formed between the directions of the burners and the material guiding direction. The continuous forging heating furnace can fully preheat materials and facilitates heat energy conservation and utilization.

The invention discloses a titanium-rich titanium nickel alloy with negative heat expansion performance and a preparation method thereof. The general formula of the titanium-rich titanium nickel alloy is Ti(100-x)Nix, wherein x is the atomic percentage and meets the relation of x=42.0-46.0. In preparation, electrolytic nickel and sponge titanium serve as raw materials and are placed into a copper crucible, with circulating water led in for cooling, of a vacuum electric-arc smelting furnace after dosing is conducted in proportion, and repeated smelting is conducted under protection of inert gas; a smelted button-shaped mother alloy is placed into a suction-casting copper crucible and heated for remelting, an alloy melt is suctioned into a suction-casting copper mould with circulating water led in for cooling under the vacuum negative-pressure effect, and an alloy with a needed shape is obtained through quick solidification; and after annealing treatment is conducted at the temperature of 800-900 DEG C, a titanium nickel alloy material with a stable negative heat expansion response temperature interval is prepared, and high strength and excellent linear superelasticity are simultaneously achieved. The titanium nickel alloy material is suitable for being compounded with a positive heat expansion material.

The invention discloses a fully-closed intelligent electric control cabinet cooling system, which comprises a compressor, a condensation heat recovery adjustment valve, a heat recovery coil, an electric valve, a condensation coil, a condensation fan, a dry filter, a throttle valve, an evaporation coil, a baffle board, an electric heater, a circulating fan and a case. The cooling capacity for cooling each electronic and electric module inside the electric control cabinet is from the refrigerating capacity generated by a vapor compression refrigeration system at the evaporation coil, a constant dew point temperature mode enables the temperature and the humidity of the circulating cooling air to be controlled precisely, and due to the condensation heat recovery design, the cooling system is energy-saving and environmental friendly. The defects that the cooling mode of the cooling fan is largely influenced by interference of the surrounding air environment, and only insufficient cooling effects can be provided can be overcome.

The invention relates to the technical field of wolfberry drying devices, in particular to an alkali-free wolfberry drying machine. The alkali-free wolfberry drying machine comprises a machine box with a cuboid structure, a controller, a drying chamber with a cylindrical structure, an energy exchanger, an energy recycling machine, a cold water tank, a hot water tank and a roots vacuum pump, wherein the energy exchanger, the energy recycling machine, the cold water tank, the hot water tank and the roots vacuum pump are arranged inside the machine box, the energy exchanger and the energy recycling machine are mutually connected through a heat exchanger, an electric auxiliary heating device used for adjusting the heat quantity inside a box body is fixedly arranged on the right side wall of the inner cavity of the machine box, a disc-shaped end cover is arranged at the left end opening of the drying chamber in a matched mode, a connecting ring with an annular structure is arranged on the inner side surface of the end cover, connecting flanges are arranged on the outer edge of the end cover and the outer edge of the left end opening of the drying chamber in a matched mode, the end coverand the drying chamber are fixed in the mode that a bolt penetrates through the connecting flanges, and the threaded section of the bolt is fixed in a matched mode through a nut. The alkali-free wolfberry drying machine is high in practicability, good in wolfberry drying effect and relatively good in popularization value.

The invention discloses a temperature-adjustable solar hot water supply system which comprises a solar water heater, a water storage tank, a controller and a heat preservation case device. The solar water heater is composed of a water tank and solar heat collecting pipes mounted on the water tank. An inlet of the water tank is connected with a cold water pipe, and an outlet of the water tank is communicated with an inlet of the heat preservation case device through a hot water pipe A. An outlet of the heat preservation case device is communicated with the water storage tank through a hot water pipe B, and the cold water pipe is provided with an electromagnetic valve which is connected with the controller through a wire. A water outlet in the water storage tank is communicated with the cold water pipe through a cold-hot water communicating pipe, a cold water control valve is arranged on the cold-hot water communicating pipe, a hot water control valve is arranged on the hot water pipe B, and a thermometer is further arranged on the top of the water storage tank. According to the temperature-adjustable solar hot water supply system, the water temperature can be adjusted conveniently and rapidly and can be adjusted according to needs, water resource waste caused by overhigh or ultralow water temperature is avoided, electric energy consumed by hot water boiling can be saved, and the purpose of saving energy is achieved.

The invention discloses a sand cooling apparatus. The sand cooling apparatus comprises a vertical casing, a material inlet and a material outlet. The apparatus also comprises a gas inlet, a guiding device and a gas outlet. The lower portion of the casing plate of the vertical casing is provided with gas inlet holes. The gas inlet is arranged outside the lower portion of the vertical casing, completely covers the gas inlet holes, and has a closed connection with the outer wall of the vertical casing. The upper right portion of the gas outlet is fixedly connected to the right side of the upper portion of the vertical casing in a closed manner, and is connected with the internal of the vertical casing. The guiding device is arranged in the vertical casing, the guiding device, the vertical casing and molding sand in the vertical casing form an S-shaped gas channel, and the gas channel connects the gas inlet with the gas outlet.

The invention relates to the technical field of detection equipment of materials, in particular to a formaldehyde detection device for a building material. The device comprises a detection box, wherein a rotary disc rotating along the horizontal plane is rotatably connected in the detection box, two fixing mechanisms for fixing panels vertically are fixedly arranged on the rotary disc, the two fixing mechanisms are arranged in a staggered manner and are in central symmetry by taking the rotary axis of the rotary disc as a center axis, a sealing part for sealing the edge of the panel is arranged on each fixing mechanism, a V-shaped guide plate is arranged at the end, close to the rotary axis, of each fixing mechanism, the air guide plate is fixedly connected to the rotary disc, and a driving mechanism for driving the rotary disc to rotate is arranged on the detection box. The scheme solves the problem in the prior art that vibration and noises are relatively great as relatively more mechanisms of the formaldehyde detection device are arranged.

The invention discloses a novel cooling and dedusting device which comprises a furnace body, a hearth, a fire inlet and a fire outlet which are arranged at two ends of the furnace body and are communicated with the hearth, and a filtering plate which is isolated at the upper end of the middle of the hearth and is fixed with the furnace body through a valve, wherein a draft fan is additionally arranged below the fire inlet; the draft fan is arranged outside the furnace body and is communicated with the hearth; and a cooling plate is fixedly arranged on the inner wall of the hearth. With the adoption of the cooling and dedusting device in such a mode, the problem that the service life is shortened due to the fact that the temperature inside the existing dedusting device is high is solved, and the direction of the biomass fire is changed; the device is simple in structure, easy to operate and relatively lower in production cost; and not only is the temperature rising speed in an annealing furnace accelerated, but also the quality of a workpiece machined in the annealing furnace is correspondingly ensured, thus the device has better practicability.

A discharging air source device for a combustible powdery material transporting tank truck comprises a discharging air source device body with an air compressor (1), wherein the discharging air source device body is arranged on a tank truck frame of the powdery material transporting tank truck. Through arrangement of the discharging air source device body on the tank truck frame, the discharging air source device body is not mounted at the lower end of a cab on a traction chassis any more, so that the discharging air source device body is not affected by the heat radiation effect of an engine on the traction chassis any more and the temperature of the discharging airflow is lowered; therefore, a requirement on the temperature of the discharging airflow for a combustible powdery material is met.

The invention discloses a dephosphorizing slag pressing agent and method thereof for inhibiting steel slag bubble, and belongs to the technical field of steel-making. The dephosphorizing slag pressing agent comprises the following components in mass percent: 45-55% of SiO2, 25-30% of Al2O3, 1.5-3.0% of Fe2O3, 0.5-1.0% of CaO, 2.5-4.5% of MgO, 0.7-1.1% of TiO2, 10-15% of C, less than 5% of total moisture. The slag pressing agent is added after the dephosphorizing blowing is finished, thereby effectively inhibiting the production of the steel slag bubble; the direct tapping can be realized without performing fore-deslagging in dephosphorizing smelting, the smelting period is greatly shortened, the steel and iron consumption can be effectively lowered at the same time, the lining life of a converter is improved, the production target of low cost, high efficiency, energy-conservation and environmental protection of the semi-steel smelting through a dephosphorizing furnace is realized, the environment cannot be influenced, and the chemical component and temperature requirements of the semi-steel are achieved.

The invention discloses an X8R type BCZT-based BME-MLCC dielectric material suitable for high voltage resistance and high reliability and a preparation method thereof. The molecular formula of the BCZT-based dielectric material is shown as a formula I, in the formula I, in (Ba1-xCax) (Ti1-y-zCayZrz) O3, x represents the mole fraction of Ca in the A site, x is larger than or equal to 0.01 and smaller than or equal to 0.05, y represents the mole fraction of Ca in the B site, y is larger than or equal to 0.01 and smaller than or equal to 0.05, z represents the mole fraction of Zr, and z is larger than or equal to 0.01 and smaller than or equal to 0.05. Compared with BaTiO3 which is widely used, the Curie temperature of the BCZT can reach 125-135 DEG C, the room temperature dielectric constant of the dielectric material can reach 1800-2800 through chemical coating modification, the higher use temperature requirement is met, and then the MLCC anti-reduction dielectric material meeting the X8R characteristic is prepared. The research on the BCZT-based X8R type ultrathin layer BME-MLCC dielectric material with high voltage resistance and high reliability has important practical application significance. (Ba1-xCax) (Ti (1-y-z) CayZrz) O3-MgO-MnO2-BaCO3-SiO2-R2O3 is shown as a formula I in the specification.

The invention provides a fresh air ventilation system with a heat recovery function. The fresh air ventilation system comprises a machine box, a fresh air fan, an exhaust air fan, a heat recovery heatexchanger, a heat pump heat exchanger set, an electric control box and a remote controller, wherein a partition plate is connected into the machine box, a fresh air inlet and a fresh air outlet are formed in two side walls corresponding to a fresh air partition chamber, and an exhaust air inlet and an exhaust air outlet are formed in two side walls corresponding to an exhaust air partition chamber; the fresh air inlet and the fresh air outlet correspondingly form a fresh air channel; the exhaust air inlet and the exhaust air outlet correspondingly form an exhaust air channel; the fresh air fan is erected at the inner side of the fresh air partition chamber; the exhaust air fan is erected at the inner side of the exhaust air partition chamber; the upper portion of the heat recovery heat exchanger is located in the fresh air partition chamber, and the lower portion of the heat recovery heat exchanger is located in the exhaust air partition chamber; and the heat pump heat exchanger set comprises a compressor, and an outlet is sequentially connected with a fresh air heat pump heat exchanger and an exhaust air heat pump heat exchanger through pipelines. According to the fresh air ventilation system, the heat recovery efficiency can reach 80% or above from 50% to the maximum; and meanwhile, through heat recovery of heat pumps, 100% recovery of air conditioner energy in exhaust air can be realized, additional cold and heat capacity can be generated, and the requirement of a user for the fresh air temperature is met.