35results about How to "Uniform film distribution" patented technology

The invention provides a preparation method of nano titanium dioxide thin film materials loaded on the surface of a ceramic body. The preparation method comprises the following steps of: adding the organic titanium salt to the de-ionized water and stirring the de-ionized water and adding alkali liquor to adjust the pH value to be 6 to 8; centrifuging for separating the mixed solution, and adding the separated slurry to the mixed solution of absolute ethyl alcohol and acetylacetone; adding the dispersing agent to the mixed solution, sufficiently and uniformly stirring the mixed solution till the stable titanium dioxide sol is formed; soaking the high-temperature resistance and corrosion resistance ceramic body into the titanium dioxide sol, drying and forging the ceramic body for 2 to 4 hours to form one layer of nano titanium dioxide thin film material on the surface of the ceramic body. The thin film is distributed uniformly, and the thickness of the thin film is controllable. When being applied to treating the industrial waste water, the ceramic body loaded with nano titanium dioxide thin film can be utilized repeatedly and has low cost and no secondary pollution.

The invention discloses a cloth membrane device of a long-tube falling film evaporator, which comprises an upper tube sheet arranged in the housing of the evaporator, a plurality of lower support rods arranged on the upper tube sheet, and a distribution tray arranged at the upper end part of the lower support rod, wherein a plurality of distribution holes which are evenly distributed and communicated from top to bottom are formed on the distribution tray, and cloth membrane apparatus is arranged in the distribution holes; a lap of check rings are arranged on the distribution tray, and a plurality of support rods are formed on the distribution tray; an overfall tray is arranged on the support rods and a connecting pipe is arranged at the middle of the overfall tray; and a lap of overflow dam is arranged at the periphery of the overfall tray, and a corresponding overflow pipe is arranged at the middle part of the distribution tray which corresponds to the connecting pipe. The cloth membrane device has the advantages of simple structure and evenly distributed cloth membrane; besides, no dry film and split film are generated in a heating pipe, so that the service life of the long-tube falling film evaporator can be prolonged.

A vertical-tube falling film absorption reactor comprises an upper tube box, a lower tube box and a shell, wherein the shell is arranged between the upper tube box and the lower tube box and is connected with the upper tube box and the lower tube box in a sealed manner respectively; a tube plate is arranged at each of the upper end and the lower end of the shell; a vertical tube bundle is arranged between the two tube plates; a film distributing device is arranged inside the shell; the film distributing device comprises an upper liquid distributing plate, a lower liquid distributing plate, and a barrel-shaped overflowing plate arranged on the upper liquid distributing plate; film distributing annular spaces are formed between lower liquid distributing plate tube holes in the lower liquid distributing plate and heat exchange tubes running through the lower liquid distributing plate tube holes; centering bulges for centering the heat exchange tubes are arranged inside the lower liquid distributing plate tube holes; spiral grooves are formed in the outer walls of the heat exchange tubes. The vertical-tube falling film absorption reactor uses the more reasonable film distributing device, so that purposes of uniformly distributing a liquid film and stably forming the film can be achieved, a dry wall phenomenon can be avoided, and the heat transfer efficiency and the mass transfer efficiency are greatly improved.

The invention discloses a film distributing device for a horizontal tube type spraying falling-film evaporator, which comprises a spray pipe and a plurality of nozzles on the spray pipe. In the device, a plurality of spray pipes are arranged on the periphery of a heat pipe bundle of the horizontal tube type spraying falling-film evaporator, when the number of the spray pipes is 3, the spray pipes enclosing the heat pipe bundle of the horizontal tube type spraying falling-film evaporator are distributed in an included angle of 120 degrees, wherein one spray pipe is positioned right above the heat pipe bundle of the horizontal tube type spraying falling-film evaporator; the nozzles are fog-shaped nozzles. The spray pipes and nozzles are arranged around the heat pipe bundle of the horizontal tube type spraying falling-film evaporator in a multidirectional manner, so the film on the surface of the heat pipe under the evaporator can be distributed uniformly, film drying and film cracking can be avoided, and the efficiency of the evaporator can be improved.

The invention provides a method and device for treating wastewater containing organic matters. The device comprises a wastewater pre-heater, an evaporator, a scaling device, a steam compressor and a condensed water collector. The invention further provides the method for treating the wastewater containing the organic matters by adopting the device. The method and device for treating the wastewater, provided by the invention, have the advantages of safety and reliability, simple equipment, low operation cost, obvious energy-saving effect and the like.

The invention discloses a three-grade-film-falling distribution heater. The three-grade-film-falling distribution heater comprises a heater cylinder (21), heating tubes (22) and a tube plate (23). A first-grade distribution spraying head (27) is installed in the top of the heater cylinder (21). A second-grade distribution disc (26) is installed at the portion, in the heater cylinder (21), between the first-grade distribution spraying head (27) and the tube plate (23). Tube openings of the heating tubes (22) extend to the portion above the tube plate (23) and are provided with sawtooth-shaped overflowing openings (29). According to the three-grade-film-falling distribution heater, due to a three-grade-film-falling distribution mode, material film-type distributing is even, film-type flowing evaporation of materials is formed in the heating tubes, the aim that coking and walling drying of the heating tubes are avoided is achieved, and the effect of improving the heating efficiency of the heater is achieved.

The invention provides a wastewater treatment method and system. The system comprises a wastewater preheater, a wastewater heater, an evaporator, a stripping tower, a vapor compressor, a heat exchanger, a non-condensable gas compressor and a condensed water collector. The invention further provides the wastewater treatment method adopting the system. The wastewater treatment method and system havethe advantages that safety and reliability are achieved, equipment is simple, operating cost is low, energy-saving effect is remarkable and the like, and 50%-95% of water resource can be recycled.

The invention relates to the field of chemical heating equipment, and discloses a lateral-feed falling-film evaporator including a shell body, a pipe plate, evaporation pipes and a liquid supply device, and the pipe plate is arranged on the upper part of the shell body; a plurality of evaporation pipes are vertically arranged in the shell body, and the upper ends of the evaporation pipes pass through the pipe plate; the upper ends of the evaporation pipes are provided with a flow guiding device; the liquid supply device comprises a liquid inlet groove and branched feed pipes, and the liquid inlet groove is vertically arranged at the upper part of the outer wall of the shell body and surrounds the whole shell body; the liquid inlet groove is uniformly provided with a plurality of branched feed inlets; the branched feed inlets are formed on the upper side wall of the liquid inlet groove, the lower ends of the branched feed pipes vertically pass through the branched feed inlets and extend into the liquid inlet groove, and the lower ends of the branched feed pipes are close to the bottom of the liquid inlet groove; the shell body is provided with a plurality of overflow channels communicating with the liquid inlet groove. The lateral-feed falling-film evaporator has the advantages of simple and compact structure, and effectively shrinks the height of the device; the lateral-feed falling-film evaporator has the advantages of large liquid flowing amount, and convenience in operation and maintenance; and with use of the device, the liquid distribution rate is high, the film distribution is uniform, and the device is not easy to block and is easy to clean.

The invention provides an organic matter-containing wastewater treatment method and device. The treatment device comprises a wastewater pre-heater, an evaporator, a scaling device, a first-effect steam compressor, a second-effect steam compressor and a condensation water collector. The invention also provides the organic matter-containing wastewater treatment method adopting the device. The wastewater treatment method and device provided by the invention have the advantages of safety, reliability, simple equipment, low operating cost, obvious energy saving effect and the like.

The invention relates to a film distribution device suitable for a falling-film evaporator of an ocean thermoelectric power generation system. The film distribution device is characterized by comprising spraying pipes, nozzles and heating tube bundles, wherein a plurality of spraying pipes are arranged along the length direction of a barrel of the falling-film evaporator at intervals; each spraying pipe surrounds the wall of the barrel of the falling-film evaporator in a circle along the circumferential direction; the nozzles are respectively arranged at the inner sides, close to the wall of the barrel of the falling-film evaporator, of all the spraying pipes; the nozzles extend into the barrel of the falling-film evaporator; the plurality of heating tube bundles are arranged in the barrel of the falling-film evaporator. The film distribution device is convenient in structure installation and is beneficial to realization of skid mounting.