32results about How to "Watered down realization" patented technology

The invention discloses a portable photo-thermal seawater desalination hollow fiber membrane, a preparation method, a device and application. The preparation method comprises the following steps: 1) dispersing and dissolving a hydrophilic polymer and nano-particles in a buffer solution with the pH value of 8.5 to prepare a uniform solution, circularly washing the hollow fiber membrane with the uniform solution for 1-24 hours, and conducting cleaning and drying for later use to prepare the hollow fiber membrane with the super-hydrophilic inner surface, wherein the ratio of the hydrophilic polymer to the nano-particles is (1-20):(0-20); and (2) putting the hollow fiber membrane with the super-hydrophilic inner surface obtained in the step (1) in 0.1-20wt% photo-thermal modified material solution atmosphere, and conducting treating for 1-24 hours in manners of surface adsorption, surface vapor deposition, surface cross-linking fixation, suction filtration and/or coating modification, so as to prepare the hollow fiber membrane with the super-hydrophilic inner surface and the photo-thermal outer surface. The three-dimensional hollow fiber membrane is selected as a base material, and the photo-thermal seawater desalination hollow fiber membrane obtained through inner/outer surface modification can realize photo-thermal seawater desalination.

The invention discloses a solar seawater desalination system which comprises a flotation device, wherein the flotation device is provided with an evaporation device and a water pumping device for conveying seawater into the evaporation device; the evaporation device is connected with a fresh water vessel and comprises a housing and a seawater vessel arranged in the housing; the upper parts of thehousing and the seawater vessel are provided with convex lenses; the top of the seawater vessel is provided with a steam outlet. According to the solar seawater desalination system, twice condensationis realized by virtue of the convex lens at the upper part of the evaporation device and the convex lens at the upper part of the seawater vessel, so that sun-lights are condensed into the seawater vessel so as to heat and evaporate seawater in the seawater vessel, the steam is volatilized outside the seawater vessel through the steam outlet at the top seawater vessel, and the steam is condensated in the housing so as to form fresh water, so that seawater desalination is realized, solar energy is fully utilized, and the power consumption is low. The solar seawater desalination system is applicable to the technical field of seawater desalination.

The invention discloses a sea ice solid eccentric desalinating method, which comprises the following steps: adopting sea ice; filling ice halogenation compound; proceeding sea ice eccentric desalination; desalinating ice-crystal.

The invention relates to the field of seawater treatment, and especially relates to an apparatus for desalinating seawater by utilizing solar energy. The apparatus comprises a base and a water storagetank arranged above the base, and the base and the water storage tank are connected through an annular glass cylinder arranged in an annular mode. The apparatus for desalinating seawater by utilizingsolar energy can utilize solar energy to evaporate seawater and condense the evaporated water vapor by utilizing the seawater in order to achieve seawater desalination, a sea salt collecting device is arranged in the apparatus and can be used for automatically collecting crystallized sea salts, an automatic seawater supply device is arranged in the apparatus and can supplement seawater after theseawater is completely evaporated in order to achieve continuous seawater desalination and avoid the problem of desalination efficiency reduction due to cooling by adding seawater halfway, and a solarenergy storage device is arranged in the apparatus and can provide electric power for the apparatus in order to guarantee that the apparatus is applied in the environment without electric power transmission.

The invention relates to a sea water desalination treatment system. The sea water desalination treatment system comprises a plurality of sea water desalination devices. Each sea water desalination device comprises a heat exchange flow channel, a steam channel, porous media and a sea water flow channel. The sea water flow channel is located at the bottom of the sea water desalination device. One end of the sea water flow channel is connected with a sea water inflow pipeline, and the other end of the sea water flow channel is connected with a sea water outflow pipeline. The porous media are located at the position above the sea water flow channel. The heat exchange flow channel is located at the position of the top of the sea water desalination device. The steam channel is located at the position below the heat exchange flow channel. The steam channel is internally provided with a plurality of heat conduction fins. The heat exchange flow channels of the sea water desalination devices are connected through high temperature heat source pipelines. Outlets of the steam channels of the sea water desalination devices are connected with fresh water pipelines. The end of each fresh water pipeline connected with each steam channel is provided with a condenser. The sea water desalination devices are utilized to perform sea water desalination, the sea water desalination efficiency can be improved greatly, the same heat source pipeline can be used for many times, and the production energy is saved.

The invention discloses a sea sand desalination device. The device comprises a tank body, wherein a first electrolytic tank is arranged in the tank body. A conveying device comprises an obliquely-arranged conveying belt, one end of the conveying belt is arranged in a first electrolytic tank, and the other end extends out of the tank body. A first electrolysis device is arranged in the first electrolytic tank, and comprises a first anode screen plate, a first diaphragm and a first cathode plate which are correspondingly arranged from top to bottom, and the conveying belt is arranged between thefirst anode screen plate and the first cathode plate. The technical scheme is adopted, sea sand is continuously placed on the conveying belt and is output from the liquid to pass through the space between the first anode screen plate and the first cathode plate; chlorides in the sea sand and chlorides diffused into the liquid from the sea sand are electrolyzed to form chloride ions, the chlorideions move towards the first anode screen plate under the action of an electric field, chlorine is formed on the chloride ions and separated from the sea sand, and sea sand desalination is achieved. Compared with a washed sand desalination mode, the device has the advantages that the chloride ion removal effect is good, the treated sea sand is high in quality, less fresh water is used, and water resources are saved.

The invention discloses a gas-hydrate-method seawater desalination system. The gas-hydrate-method seawater desalination system has the advantages that gas recycling between a first reaction kettle anda second reaction kettle is achieved, gas hydrate can be generated through gas and seawater so as to achieve seawater desalination to generate desalted water, and seawater desalination degree is increased greatly; a pressurizing system is arranged on a pipeline system, and the pressure of a gas hydration reaction system can be regulated through the piston pressurizing system so as to increase seawater desalination efficiency; in general, the gas hydrate generated by the gas and the seawater is decomposed to obtain the desalted water, seawater desalination is achieved, the seawater desalination effect can be greatly improved by the system, cost can be lowered, and the system is worthy of popularization and application.

The invention discloses a compressed gas energy storage type membrane distillation seawater desalination system and a seawater desalination process thereof, and belongs to the field of desalination and water treatment. The system comprises a water taking pump, a seawater pretreatment unit, a membrane distillation unit, a heat collection unit, an energy obtaining unit and an energy storage unit. Renewable energy sources such as solar energy and wind energy are used for supplying power and heat, a stable desalination process is realized by combining an energy storage technology and a membrane distillation technology, and the energy utilization efficiency is relatively high; a preheater is used for recovering the waste heat of the strong brine, so that good heat economy is achieved, and good water production flexibility is achieved by controlling the mixed salinity of the desalted water and the strong brine; and the compressed gas energy storage system solves the problems of instability, discontinuity and the like when renewable energy sources are obtained, and can assist the energy storage system in supplying power. The compressed gas energy storage type membrane distillation seawater desalination system is simple and compact in structure, saves physical space, and is simple and convenient to install and maintain.

The invention provides a distillation type seawater desalination device, and belongs to the technical field of seawater desalination equipment. The device comprises a heat collection cover, a heat insulation cover, a heated cover and a water collection tank, the heat insulation cover is located on the inner side of the heat collection cover, the heated cover is located on the inner side of the heat insulation cover, the heat insulation cover is fixedly connected with the heated cover, a volatilization cavity is formed between the heat insulation cover and the heated cover, the outer edge of the heat collection cover is fixedly connected with a tapered separating cylinder, the separating cylinder is tapered with an upper end diameter smaller than the lower end diameter, a heat preservationcylinder is fixedly connected to the outer edge of the heat insulation cover, a plurality of breathing holes are formed in the circumferential face of the heat preservation cylinder, a filling base isconnected to the lower end of the heat preservation cylinder, a plurality of biconvex lenses are arranged on the heat collection cover, the biconvex lenses are lenses, the heat collection cover is made of transparent materials, the heat insulation cover is made of light-permeable materials from outside to inside, and the biconvex mirror is focused on the outer wall of the heated cover after beingirradiated by sunlight. The seawater desalination device has the advantages that seawater can be efficiently desalinated in a maintenance-free manner and the like.