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40results about How to "Flexible scale" patented technology

Method for spraying and desalting through residual pressure of reverse osmosis concentrated water

The invention establishes a method for treating waste concentrated saltwater of reverse osmosis systems. The method mainly comprises the following steps that: the residual pressure of concentrated water produced by the self of a reverse osmosis system during water production is utilized to form high-salt spray so as to save power needed by conventional atomization; tiny water droplets quickly evaporate in floating air so as to separate water, salt and other impurities; meanwhile, organic matter contained by the water is oxidized to be carbon dioxide; vapor is input into a condensing chamber to turn into pure water, while salt and high-power tail water fall to the bottom of a separation chamber; the tail water and initial inflow water are mixed and circulated and then continue to be atomized and concentrated to a saturation state; the contained salt is subjected to heat-exchange condensation and then crystallization and precipitation; and water purification and salinity removal of reverse osmosis concentrated water are finally realized. The desalting and pollutant-reducing method for reverse osmosis concentrated water is suitable for the separation of the waste concentrated saltwater produced by every type of reverse osmosis systems.
Owner:TIANJIN ACADEMY OF ENVIRONMENTAL SCI

Heat accumulating type humidification and dehumidification solar seawater desalination system and technological method thereof

The invention discloses a heat accumulating type humidification and dehumidification solar seawater desalination system and a technological method thereof. A heat tube-vacuum tube type solar thermal collector is used for directly heating the air and the seawater in a bubbler; a porous bubbling discharge pipe is dipped into the seawater so as to enable the air to bubble and humidify adding in the seawater in a spraying way; a humidifier is simple in structure, and easy to processing, disassembly and descaling. The condensation latent heat of vapor is recovered by the lower part of a fin inorganic heat tube in a dehumidifier and is then transmitted to a phase-change material and the seawater; part of the heat is used for heating and humidifying the air above a seawater desalter by means of the seawater desalter so as to generate fresh water, and the other part of heat is stored in a solid-liquid form and is released out at night; therefore, the condensation latent heat utilization rate and the fresh water yield are higher. The phase-change material is used for storing heat, so that the temperature at a heat exchange cold end of the heat tube is constant, and the heat exchange effect is good. A power grid or an independent photovoltaic power generation system is used for supplying power for the seawater desalination system, so that the seawater desalination system is flexible in scale and wide in application range, and can be used for desalting the coastal and island seawater and desalting the bitter salt water in inland remote and border areas.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Wave airflow energy power generation technology

The invention relates to the technical field of new energy development and solves the problems of energy crisis and climatic change and the like to benefit human beings. The technical scheme of the wave airflow energy power generation technology includes that by means of renewable ocean wave energy source, a plurality of semi-closed air boxes with airflow holes are fixed together to form a wave collection cluster of a certain scale to float on the sea, the bottoms of the air boxes are open, and side walls and the tops of the air boxes are closed, the airflow holes are reserved on the tops of the air boxes, and one-way airflow valves are mounted in the airflow holes. When the wave falls, outside air is sucked from air inlet holes; when the wave rises, the air is squeezed out of the air boxes to form airflows, and the airflows of the air boxes are converged together via pipelines to form strong airflow to boost a turbine generator to rotate to generate power. The principle that wave energy is converted into airflow energy through the semi-closed air boxes and the airflow energy is converted into power energy through the turbine generator is called as wave airflow energy power generation. The wave airflow energy power generation technology applied can obtain green energy sources most conveniently and economically in large scale.
Owner:马春云

Wave energy power generating magnetic set and power generating device thereof

The invention discloses a wave energy power generating magnetic set and a power generating device thereof. The wave energy power generating magnetic set comprises a plurality of magnets. The magnets are cylindrical and are provided with through holes at the centers. The plurality of magnets are fastened together through bolts and nuts. The periphery of the magnet set is provided with a plurality of roller fixing devices. The roller fixing device is provided with a roller. The roller is spherical or annular. The power generating device comprises an external floating pipe, a power generating pipe, a sliding permanent magnet set, an arrangement circuit board and a power consumption device. A plurality of layers of coils are wound outside the power generating pipe. The sliding permanent magnet set slides in the power generating pipe. The external floating pipe sleeves the power generating pipe. Two ends of the external floating pipe are sealed by external floating pipe caps. The arrangement circuit board is arranged at one end of the power generating pipe. The arrangement circuit board is electrically connected with the coil. The power consumption device is arranged outside the external floating pipe. The arrangement circuit board is electrically connected with the power consumption device. Through utilizing innovative technology, the wave energy power generating magnetic set and the power generating device have advantages of reducing a friction force through a no-shaft roller, improving power generating efficiency and prolonging service life of the device.
Owner:HAINAN UNIVERSITY +2

Method for preparing manganese sulfate solution through manganese oxidized ore thermal-storage reducing roasting

The invention discloses a method for preparing a manganese sulfate solution through manganese oxidized ore thermal-storage reducing roasting. Preparation is performed according to the following stepsthat (1) manganese oxidized ore is crushed, biomass powder is added, mixing and uniform stirring are performed, then a mixture is spread into a roasting box with ventilation holes in the bottom, the material layer is combusted from the surface layer to the bottom layer under the negative micro-pressure air draft, the combustion layer moves to the bottom of the material layer, and then the roastingprocess is finished, so that thermal reducing-roasted ore is obtained; and (2) water, dilute sulphuric acid or electrolytic manganese anolyte are added into a leaching barrel, the thermal reducing-roasted ore is added into the barrel, stirring is performed so that pulp liquid is prepared, then sulfuric acid is added into the pulp liquid, stirring and reaction are performed, then hydrogen peroxideis added, stirring and reaction continue, then a manganese sulfate acid leaching solution is obtained, the acid leaching solution is subjected to neutralization, iron removal and purification, and then the manganese sulfate solution is obtained. The method has the characteristics that the source of reducing agents is wide, the price of the reducing agents is low, the reducing speed is high, the equipment investment is low, energy consumption is low, the manganese reducing leaching rate is high, and the scale is flexible, and the defects in the prior art can be overcome.
Owner:GUIZHOU UNIV

A kind of preparation method of zirconia nanopowder

The invention relates to a preparing method for zirconium dioxide nano-powder. The preparing method comprises the following steps that zirconium oxychloride is dissolved in pure water to be prepared into an aqueous solution with the concentration being 0.1-2.0 mol / L, the aqueous solution is heated to 40-96 DEG C, and the temperature is maintained for 1-5 h; then, the aqueous solution flows into a material liquid side partition chamber of a diffusion dialysis membrane device, hydrogen chloride in the aqueous solution permeates an anion-exchange membrane and enters a diffusion liquid side partition chamber while zirconium hydroxide stays in the material liquid side partition chamber to form colloid suspension liquid, and meanwhile pure water flows into the diffusion liquid side partition chamber; zirconium hydroxide colloid suspension liquid is filtered with a filter and concentrated with a membrane distillation device, zirconium hydroxide paste is formed, the paste is dehydrated and dried, and the zirconium dioxide nano-powder is obtained. According to the zirconium dioxide nano-powder prepared through the method, the purity can reach 99.9% or above, the particle size ranges from 5 nm to 30 nm and is distributed uniformly, the technological process is efficient and saves energy, resources are saved, environment friendliness is achieved, and the scale is flexible.
Owner:NINGXIA BAOTA PETROCHEM SCI & TECH IND DEV

A membrane device for catalytic gasoline desulfurization and refining

The invention relates to membrane device for desulfurizing and refining catalytic gasoline. The membrane device mainly comprises a raw material tank, a feed pump, a bag-type filter, a preheater, a first-grade membrane separating system, a second-grade separating system, a cooler, a micro-filtration membrane filter, a refined oil storage tank, a condensing tower, a buffer tank, a vacuum pump, a recovery tower and a high-sulfur rich-impurity oil tank, wherein a lower portion of the raw material tank is connected with an inlet of the feed pump, an outlet of the feed pump is connected with an inlet of the bag-type filter, an outlet of the bag-type filter is connected with an inlet of the preheater, an outlet of the preheater is connected with a feed inlet of the first-grade membrane separating system, a purified oil outlet of the first-grade membrane separating system is connected with a feed inlet of the second-grade separating system, a purified oil outlet of the second-grade separating system is connected with an inlet of the cooler, an outlet of the cooler is connected with an inlet of the micro-filtration membrane filter, an outlet of the micro-filtration membrane filter is connected with the refined oil storage tank, an outlet of the condensing tower is connected with the buffer tank which is connected with an air inlet of the vacuum pump, an air outlet of the vacuum pump is connected with the recovery tower, and an outlet of the recovery tower is communicated with the atmosphere.
Owner:NINGXIA BAOTA PETROCHEM GROUP
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