1212results about How to "Improve evaporation efficiency" patented technology

The invention relates to a PVA hydrogel-based photo-thermal evaporation material and preparation and application thereof. The preparation method comprises the following steps: step 1, respectively preparing an aqueous polyvinyl alcohol (PVA) solution, an aqueous nanometer photo-thermal material dispersion solution, an aqueous glutaraldehyde solution and a low-concentration hydrochloric acid solution; 2, fully mixing and stirring the aqueous PVA solution, the aqueous nanometer photo-thermal material dispersion solution, the aqueous glutaraldehyde solution and the low-concentration hydrochloricacid solution in the step 1 according to a certain sequence under a certain temperature condition; and 3, transferring the mixed and stirred product into a forming mold when the mixed and stirred product is not cured, and carrying out standing until a cross-linking reaction is complete, thereby obtaining the hydrogel material. The preparation method disclosed by the invention has the beneficial effects that preparation process is environment-friendly, pollution-free, simple and feasible; preparation cost is low; the obtained hydrogel can be used as an ideal photo-thermal evaporation and solarseawater desalination material; and the prepared hydrogel has high light absorption efficiency, photo-thermal conversion efficiency and evaporation efficiency, and can be applied to the field of solarseawater desalination.

The invention provides an energy-saving evaporation treatment process of high-salinity wastewater. The energy-saving evaporation treatment process comprises an evaporating system, a concentrating system, a drying system and a heat circulating system. Grading preheating, heating evaporation, adsorption purification, concentration, adsorption purification and high-temperature drying are successively carried out on the high-salinity wastewater treated by a wastewater treatment system to obtain the finished product of inorganic salt, heat exhausted in the evaporation, concentration and drying processes is recycled, and wastewater is discharged. By adopting the technical scheme, wastewater discharged finally meets the national industrial wastewater discharge standard, the purity of the obtained inorganic salt is as high as 99.3%, and the energy-saving effect is remarkable.

The invention discloses a salt-containing high concentrated organic wastewater treatment device and method in technical field of wastewater treatment. The high concentrated organic wastewater treatment device comprises a separation precipitation tank, an inner cavity of the separation sedimentation tank is provided with a precipitation auxiliary component, the left and right inner walls of an evaporation tank component are symmetrically provided with heating radiant tubes, the other end of a condenser pipe penetrates through the right side at the bottom of the condensing tank and is connectedwith a central part of the top of a neutralization filtration tank, the top of the inner chamber of the neutralization filtration tank is provided with a mixing box, and the inner chamber of the neutralization filtration tank is provided with an activated carbon filter net obliquely; the treatment device has a good treatment effect and high purification quality; the wastewater is placed in the separation precipitation tank for precipitation, the precipitated wastewater enters the evaporation tank component and is heated at a high temperature by the heating radiant tubes to complete the sewageand salt separation, the water vapor passes through the condensing tank, the condenser pipe and the ice bag cooperate with each other, so that the steam is cooled to form water and then enters the mixing box, then the rotating rod is driven by the stirring motor to perform neutralization stirring, and finally the wastewater is filtered.

The invention relates to a waste acid concentration multistage treatment method which comprises the following steps of: heating 20-22% waste acid by a preheater, evaporating by a one-effect evaporation heater and a double-effect evaporation heater, cooling by a cooler and crystallizing by a crystallizer; heating by a triple-effect evaporation heater and separating by a separator to obtain 65% concentrated acid. The secondary steam part is used as a heat source part of the next stage heater and is condensed by spraying cooling water, wherein the one-effect evaporation heater and the double-effect evaporation heater are falling film graphite tube array evaporation heaters; the triple-effect evaporation heater is a floating head tube array graphite heat exchange. The water evaporation capability of the method is increased from 2.5 tons to 10 tons, and the stage number is 3 or more. A large amount of steam and cooling water is saved, and the pollution to the environment is reduced. The heat exchange area of equipment is reduced by 30%, and materials are saved and manufacturing cost is reduced correspondingly. The heat of steam is fully utilized, more than 35% of steam is saved, and more than 30% of cooling water can be saved. The condensed water part of the steam is used as the hear source part of the preheater and is recycled for other uses.

The invention relates to a mobile type indoor disinfectant vapor disinfection system, which comprises a disinfectant vapor generation device, a wireless intelligent control system, a power-driven device, an environmental monitoring device, an air supply device, a mobile device and a disinfectant storage device. The disinfectant vapor generation device comprises a disinfectant vapor three-level refinement system, a filtering and catalyzing integrated system and a vapor generation control device; the air supply device supplies secondary power for scattering vapor in a space; and the wireless intelligent control system is communicated with the environmental monitoring device, the air supply device and the power-driven device so as to finish the operations of controlling the disinfectant vapor generation device, acquiring environmental parameters, and switching on/off the air supply device and the power-driven device in a disinfection target. The mobile type indoor disinfectant vapor disinfection system can intelligently, comprehensively and efficiently finish the disinfection operation of a closed space of large-sized equipment and is particularly suitable for the disinfection operation of a closed space with long and narrow passages, so that the mobile type indoor disinfectant vapor disinfection system has the advantages of strong maneuverability, high disinfection efficiency, no secondary pollution, and the like.

The invention discloses a repairing system and method for heavy metal-organic combined polluted soil and underground water. The repairing system comprises an electric repairing system, a resistance heating system, a soil gas-phase extraction system, an extracted gas phase treatment system and a system switchover system. The electric repairing system comprises a positive electrode and a negative electrode connected with a direct current power source, and the positive electrode and the negative electrode are arranged in a positive electrode electrolytic cell and a negative electrode electrolytic cell respectively. The resistance heating system comprises a positive electrode and a negative electrode connected with an alternating current power source. The system switchover system comprises a control device which controls the switching-on and off of a first switch and a second switch through a temperature detector probe. According to the repairing system, the electrodes are applied to the resistance heating system and the electric repairing system, effective combination and unification of the electric repairing technology and the heat treatment technology are achieved, equipment of the system is simplified, the repairing effect is enhanced, and the removal efficiency is improved.

The invention relates to the technical field of evaporation and discloses an evaporation crucible and evaporation equipment in order to increase the utilization rate of evaporation materials and improve the evaporation efficiency. The evaporation crucible comprises a crucible body and a crucible opening communicated with the crucible body, wherein multiple inert gas introduction nozzles are distributed on the side wall of the crucible opening. The evaporation crucible is applied to the evaporation equipment, inert gas is introduced into the crucible opening through the multiple inert gas introduction nozzles, and inert gas molecules can collide with evaporation gas molecules in the crucible opening, so that kinetic energy for upward movement of the evaporation gas molecules is increased, and the evaporation gas molecules flying to the surface of a substrate and deposited are increased greatly. Compared with the prior art, with the adoption of the scheme, the utilization rate of the evaporation material can be increased, and the evaporation efficiency is improved.

The invention relates to a method and a device for recovering a polyethylene glycol raffinate byproduct form an ethylene glycol process. The method comprises the following steps of: (1) adding phosphoric acid into the polyethylene glycol raffinate, controlling the pH value to be between 7 and 9, conveying the mixture to a preheater (1), and preheating; (2) allowing a preheated material to enter a scraper falling-film evaporator (2), discharging a material at the bottom of the evaporator into an intermediate tank (3), and allowing the material to enter the preheater (1) through a centrifugal separator (8); (3) conveying the mixture of water and alcohol on the top of the falling-film evaporator to a dehydration rectifying tower (3); (4) conveying a mixed alcohol material at the bottom of the tower to an ethylene glycol separating tower (4); (5) conveying the material at the bottom of the tower to a diethylene glycol separating tower (5); and (6) conveying the material at the bottom to a triethylene glycol separating tower (6), and collecting products on the top and bottom of the tower respectively. The method is simple, efficient and low in energy consumption, and is suitable for industrial application; and by the method, the utilization rate of the raffinate produced by ethylene glycol is improved.

The invention discloses a preparation method of a rare-earth permanent magnet, a preparation device and a rare-earth permanent magnet prepared thereby, and relates to the preparation technology of sintered rare-earth permanent magnet with high coercivity. The invention is characterized in that the preparation method is carried out in two-chamber vacuum equipment which can be communicated with each other and also can carry out pressure increasing and decreasing treatment and heating treatment, and comprises the following steps of: firstly putting an evaporation material in a first chamber for crushing; putting a treated piece in a second chamber, vacuumizing the second chamber and enabling the vacuum degree of the second chamber to be equivalent to that of the first chamber; transferring the treated piece into the first chamber and carrying out heat diffusion treatment in the first chamber; carrying out pressure decreasing on the first chamber, and enabling the vacuum degree of the first chamber to be equivalent to that the second chamber; and transferring the treated piece back into the second chamber, and carrying out aging treatment in the second chamber. The preparation method disclosed by the invention has the advantages that no powder is remained on the surface of the magnet; the metal powder is adopted for evaporation, so that the evaporation efficiency is greatly increased, and the purpose of providing high-coercivity and high-remanence magnet by using fewer heavy rare-earth materials can be realized; and simultaneously, the magnet has stronger corrosion resistance.

The invention relates to a device of seawater desalination and poor quality water purification and a method thereof. A treatment pool has at least a transparent surface on the top; a three-dimensional network body is placed inside the treatment pool and contains10 percent to 99 percent of porosity and specific surface area thereof is not less than 0.05m<2>/g of a pass-through micro-pore. A water inlet, an air inlet and a high moisture airflow outlet are arranged in the treatment pool. The high moisture airflow outlet is connected with a condensing chamber, which is connected with a refrigerator. The lower part of the refrigerator is provided with a purifying water outlet. Raw water is filtered in advance to remove relatively large impurities and then is fed into the treatment pool so as to be fully permeated to the three-dimensional network body; the liquid absorbed inside the three-dimensional network body evaporates under the function of the airflow; the high moisture airflow going out of the three-dimensional network body after cooled is sent into the condensing chamber to become fresh water or pure water, and the fresh water or pure water comes out of the condensing chamber is absorbed by active carbon and/or is treated by ultraviolet sterilization in become drinking water. The invention is characterized by small energy consumption, high efficiency and good stability.

The invention discloses a treatment method of low-temperature evaporation high-concentration sewage. The method comprises the following steps: feeding the preheated hot air to a hot air inlet end of a low-temperature plate evaporator; feeding the preheated sewage to a sewage inlet end of the low-temperature plate evaporator, wherein the low-temperature plate evaporator is mainly formed by a plurality of layers of evaporation plates in a stacking manner; the sewage entering inside a flow control component forms a continuous laminar liquid film from top to bottom through the flow control component; the hot air entering an air pre-heating component forms a continuous ascend airflow from bottom to top, so that the continuous ascend airflow and the continuous laminar liquid film are subjected to countercurrent contact; saturated steam is finally formed by the continuous ascend airflow through the multi-layer evaporation plate, so that the saturated steam is discharged through a hot air outlet at the top; the continuous laminar liquid film is separated out in a form of a crystal substance after being fully evaporated, the un-evaporated sewage is discharged from a sewage outlet at the bottom. Thus, the treatment method disclosed by the invention is small in investment, good in treatment effect, low in energy consumption, green and environmentally friendly.

The invention provides a method for extracting germanium from lignite through a pyrogenic process. The method is characterized in that germanium-containing lignite volatilizes germanium in a pyrogenic-process smelting procedure of a vertical kiln; a control condition of volatilizing germanium is that the temperature is between 1,150 and 1,250 DEG C; in a suitable reducing atmosphere, the germanium existing as germanium dioxide generates germanium monoxide after reduction reaction through carbon particles and carbon monoxide; a suitable oxidizing atmosphere ensures that the germanium monoxide follows dust particles volatilized simultaneously to meet excessive oxygen in a flue gas tube and then is oxidized to be the germanium dioxide; the temperature of the germanium dioxide is lowered through a cooler; the generated germanium dioxide is changed into a solid state and is attached to the surfaces of the dust particles; the germanium-enriched dust particles pass an electrostatic dust catcher and then are attached to the electrostatic dust catcher; and germanium-enriched electrostatic dust is collected so as to obtain germanium concentrate. The method is advanced in technology, economical, practical and low in cost for extracting germanium. Compared with a chain-boiler germanium extracting process and other germanium extracting methods, the method has the advantages that the method is high in germanium volatilizing efficiency, the direct recovery rate of the electrostatic dust, the germanium-containing grade of the electrostatic dust and the post wet treatment yield of the output electrostatic dust, and is convenient for subsequent processing, and the like.

The invention discloses a solar photovoltaic waste heat-joule heat gradient utilization seawater desalination system, and belongs to the field of renewable energy source utilization. The system mainlycomprises a high-transmittance glass cover plate, a solar photovoltaic cell, heat conduction silica gel, a heat conduction aluminum plate, a seawater flow channel, an electric heating layer, a hydrophobic film layer, a condensate flow channel, aheat preservation and insulation layer a seawater storage tank, a condensate collecting tank, a washing tank and an efficient fin radiator. The system iscomposed of multiple layers of seawater desalination devices. The desalination devicesare arranged in the heat preservation and insulation layer, the high-transmittance glass cover plate, the solar photovoltaic cell, the heat conduction silica gel, the heat conduction aluminum plate, the electric heating layer, the hydrophobic film layer, the seawater flow channel, the seawater storage tank and the condensed water collection tank are sequentially arranged in the heat preservation and insulation layer from top to bottom. Waste heat and electric energy generated by power generation of the solarphotovoltaic cell are utilized, energy is utilized in situ or in a gradient mode to participate in sea water desalination, solar energy is utilized to the maximum extent, and meanwhile the evaporationefficiency and the sea water desalination capacity of the system are greatly improved.

The invention discloses a treatment system and evaporating treatment method for high salinity wastewater. The treatment system comprises a desulfurization waste water conventional treatment device, a high-salinity water concentration device, a concentrated high-salinity water storage pool and an atomizer which are connected in sequence. The treatment system further comprises a high-salinity water boiling point reducing device which is arranged at any appropriate position in front of the concentrated high-salinity water storage pool. The water spraying amount of concentrated high-salinity water sprayed out of the atomizer can be adjusted. The treatment method comprises the steps that 1, after desulfurization waste water is subjected to conventional treatment, upper-layer clear water, namely, high-salinity water is collected, the high-salinity water is concentrated to be reduced, and concentrated high-salinity water is formed and stored in the concentrated high-salinity water storage pool; 2, the concentrated high-salinity water in the concentrated high-salinity water storage pool is sprayed into a flue between a hearth and a dust remover and/or the hearth through the atomizer and subjected to atomization and evaporation, and crystal substances are mixed into coal ash to be removed together, wherein the water spray amount of the concentrated high-salinity water sprayed into the flue between the hearth and the dust remover and/or the hearth is adjusted according to flue gas temperature.

The invention provides a self-adjusting type intelligent atomizing core which comprises a body and a printing resistor arranged on the upper surface of the body. The aperture of crystalline grains inthe body is increased from top to bottom. Due to the big-end-down aperture of the crystalline grains, cigarette liquid can conveniently permeate through the crystalline grains from bottom to top and can be prevented from flowing downward, the upward moving cigarette liquid in a liquid inlet groove can press against the downward movement of the atomized cigarette liquid and the cigarette liquid pressed by the atomized cigarette liquid to move downward, the volatilizing efficiency of the atomized cigarette liquid is improved, and the atomizing efficiency of the cigarette liquid is improved. Dueto the design, the invention further provides a manufacturing method of the self-adjusting type intelligent atomizing core. The manufacturing method includes the steps of sequential overlapping of a plurality of ceramic layers, calcinating, silk-screening and sintering. The method is simple in process and reliable.

The invention discloses a photo-thermal conversion material, which has a double-layer structure, wherein the double-layer structure is a polydopamine layer on a polyurethane sponge layer, the top layer of the double-layer structure is dark black, the thickness of the top layer is 0.5-2.0 mm, and the total thickness of the double-layer structure is 10-25 mm. The preparation method of the photo-thermal conversion material comprises: S1, purifying polyurethane sponge; S2, loading polydopamine: immersing the polyurethane sponge purified in the step S1 into a container filled with a hydrochloric acid-containing dopamine trihydroxymethyl aminomethane buffer solution (Tris-HCl buffer solution), and carrying out a water bath reaction for 4-24 h at a temperature of 25-80 DEG C without any disturbance condition and container sealing to obtain modified sponge; and S3, drying. The invention also provides applications of the photo-thermal conversion material. According to the invention, with the photo-thermal conversion material, the problems of low efficiency, high cost, complex process and the like of the existing solar steam photo-thermal conversion are solved.

The invention provides a shielding device with a vacuum cavity body, comprising a support seat, a drive mechanism, a rotating shaft and a baffle. The drive mechanism comprises a motor, a drive gear and a driven gear, wherein the motor is fixed on the support seat; the output shaft of the motor is pivoted with the drive gear; the driven gear is engaged with the drive gear; one end of the rotating shaft is pivoted with the driven gear; the other end hermetically passes through the cavity wall of the vacuum cavity body and is vertically and fixedly connected with the baffle; the baffle is accommodated in the vacuum cavity body and positioned between an evaporation source in the vacuum cavity body and a processing board; and the drive mechanism drives the rotating shaft, and the rotating shaft drives the baffle to isolate or switch on a space of the evaporation source and the processing board. The shielding device with the vacuum cavity body has the advantages of simple structure, high evaporation efficiency and prolonged service life of the evaporation source.

The invention provides a machine room air conditioner system and a control method thereof. The machine room air conditioner system comprises a refrigeration circulating system and a heat pipe loop system. The refrigeration circulating system comprises a compressor, a condenser, a throttling device and an evaporator which are all connected with one another. A controller controlling the compression ratio of the compressor is arranged on the compressor. The controller is connected with a temperature sensor arranged outside a machine room. The heat pipe loop system comprises a fluorine pump and a heat pipe which are connected with the condenser and the evaporator; the heat pipe loop system is formed by the fluorine pump, the heat pipe, the condenser and the evaporator; and the heat pipe loop system can cool the machine room through a natural cold source outside the machine room. According to the technical scheme, on one hand, the compression ratio can be automatically adjusted by the machine room air conditioner system according to the outside temperature, and therefore the compressor can perform variable-compression-ratio work; and on the other hand, the machine room air conditioner system can cool the machine room through the outside natural cold source in winter and other cold seasons, and therefore the energy consumption of the machine room air conditioner system can be reduced.