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31results about How to "Even distribution of water flow" patented technology

High-flux high-dirt-holding-capacity filtering element and preparation method thereof

The invention discloses a high-flux high-dirt-holding-capacity filtering element, which comprises a filtering medium layer (3), a central tube (2), a shell (1) and upper and lower end covers (10, 11), wherein the filtering medium layer (3) is folded into an arc-shaped fold and then encloses the central tube (2), and the whole is cylindrical; the shell (1) is sleeved outside a cylindrical filtering medium; the filtering medium layer comprises a filtering layer (3b) and plastic net layers (8) which are positioned on two sides of the filtering layer; the filtering layer consists of at least two layers of filtering materials (3d); and the upper and lower ends of the central tube (2) and the shell (1) are fixedly connected with the upper and lower end covers. A high-flux folding filtering element is wide in runner, relatively low in fluid resistance, and more uniform in flow distribution of water inlet and outlet ends of the filtering element. Compared with the conventional W-shaped linear fold designing filtration membrane, the high-flux folding filtering element is improved by over 30 percent in terms of filling density, large in filtering area, high in total dirt-holding capacity and long in service life of the filtering element.
Owner:浙江瑞普环境技术有限公司

Efficient open type net pipe flowing channel reverse osmosis membrane element

The invention relates to an efficient open type net pipe flowing channel reverse osmosis membrane element. The efficient open type net pipe flowing channel reverse osmosis membrane element comprises acentral flow guide pipe, and a separating layer which coats the periphery of the central flow guide pipe, wherein the separating layer is a membrane bag layer manufactured by coiling a plurality of membrane bags and open separating nets in the same direction; the open separating nets are arranged in inlet water flowing channels between the surfaces of adjacent membrane bag layers and are in convex point contact manner with the surfaces of the membrane bags, and fine rhombic separating nets are used for connecting the convex points so as to form rhombic wide open type flowing channels betweentwo rows of convex point shaped separating nets on the contact surfaces of the membrane bags in the water flowing in and out directions; the inner side edges of the membrane bags and the open separating nets are fixedly connected with the central flow guide pipe and are radially arranged from the center; the membrane bags and the open separating nets are screwed in the same direction so as to formthe membrane bag layer; the coiled membrane bag layer is coiled, coated and sealed with glass fibers and epoxy resin, and the two ends are equipped with stress-resistant plates.
Owner:JIANGSU KUNYI ENVIRONMENTAL ENG CO LTD

Porous multi-hollow flexible composite nanofiber membrane material and preparation method thereof

The invention relates to a porous multi-hollow flexible composite nanofiber membrane material and a preparation method thereof. According to the method, a porous multi-hollow flexible composite nanofiber membrane is prepared through coaxial electrostatic spinning, wherein an outer layer solution for coaxial electrostatic spinning consists of a sacrificial high-molecular polymer, a retained high-molecular polymer and a solvent A, and an inner layer solution for coaxial electrostatic spinning is composed of a sacrificial high-molecular polymer, a material capable of generating a substance with semiconductor characteristics and low surface energy in the spinning process, and a solvent B; and then the sacrificial high-molecular polymer in the porous multi-hollow flexible composite nanofiber membrane is removed to obtain the membrane material formed by stacking porous multi-hollow nanofibers, wherein the porous multi-hollow nanofibers are provided with a plurality of hollow pipelines and three-dimensional penetrating through hole micro-nano structures with the hollow surfaces. The membrane material disclosed by the invention has relatively high flexibility and mechanical strength, and the problems of fragility, low mechanical strength and the like of a porous composite fiber material and a single hollow fiber material are solved.
Owner:DONGHUA UNIV

Prefabricated capillary energy-storage heat-dissipation wall

The invention relates to a prefabricated capillary energy-storage heat-dissipation wall. The prefabricated capillary energy-storage heat-dissipation wall comprises a concrete wall, the concrete wall is sequentially provided with a first tempered glass layer, a second tempered glass layer, a first-stage dedusting filter screen, a second-stage dedusting filter screen, an air adsorption layer, a passive heat source ground heating capillary pipe net, thermal insulation materials and a wall body capillary pipe net from outside to inside. The periphery of the first tempered glass layer and the periphery of the second tempered glass layer are sealed through first sealing glue to form a closed first air layer, a closed second air layer is formed between the first-stage dedusting filter screen and the second tempered glass layer, the periphery of the first-stage dedusting filter screen and the periphery of the second-stage dedusting filter screen are sealed through second sealing glue to form a closed third air layer, the second-stage dedusting filter screen is in close contact with the air adsorption layer, and the capillary pipe nets are in close contact with the air adsorption layer. The prefabricated capillary energy-storage heat-dissipation wall is convenient to install and use and low in cost, strong air and noise pollution can be avoided, the electricity consumption is small, and energy is saved.
Owner:安徽中宝建材科技有限公司

Vegetation recovery system and method for vegetation recovery with system

The invention provides a vegetation recovery system which comprises an exposed hillside with a certain slope or level sandy land, a water cellar arranged in a high position of the hillside or a level position higher than the sandy land, vegetation planting units laid along a sloping surface of the hillside or the sandy land lower than the water cellar, a main flow pipe and branch pipes; the vegetation planting units comprise square plastic frames, crossed four-way pipes located in the centers of the plastic frames and provided with openings on the top surfaces, and cotton yarns located at the openings of the top surfaces of the four-way pipes and extending to the side edges of the plastic frames; the four-way pipes in the centers of the adjacent vegetation planting units are mutually connected via the branch pipes; one end of the main flow pipe is connected with a water outlet at the bottom of the water cellar; and the other end of the main flow pipe is connected with the branch pipe in any vegetation planting unit.The vegetation recovery system employs the vegetation planting units in special structures, is convenient to construct and low in maintenance cost, and does not require manual sprinkling and watering, a plant survival rate is high, and after plants grow, roots of the plants can penetrate into rock or the earth surface and can exert a good water holding and soil fixation effect.The invention further provides a method for vegetation recovery of the hillside or the sandy land exposing the rock with the vegetation recovery system.
Owner:王承辉

Efficient energy-saving concentration treatment device for desulfurization wastewater

The invention discloses an efficient energy-saving concentration treatment device for desulfurization wastewater. The concentration treatment device for the desulfurization wastewater comprises an evaporation tower, system wastewater is introduced into a water inlet pipe, flows to a center pipe, enters all water distribution branch pipes and is evenly sprayed downwards, a motor and a fan are started, and when the wastewater passes through a filler layer from the water distribution branch pipes from top to bottom and is subjected to one-time heat exchange with air introduced from an inlet air mesh, one-time evaporation is completed; the sprayed water falls on a water collection disc, a proper amount of smoke is supplemented to the air inlet pipe, the water temperature keeps at the design valve, and a wastewater circulation pump sucks the wastewater in the water collection disc into the water inlet pipe; in this way, the steps are circulated until the concentration of slurry of the watercollection disc reaches the required concentration, a discharging pipe is opened, and a concentration solution is discharged to a following treatment technology zone. According to the device, by effectively using the heat and waste heat of the system, the energy is saved, the investment is reduced, few devices are needed, the operation and maintenance cost is low, high concentration can be achieved, and in flexible cooperation with after-treatment of various forms, zero discharging of terminal wastewater is achieved.
Owner:国能浙江北仑第一发电有限公司 +1

Construction technology for mixed-flow and countercurrent swimming pool

InactiveCN107795157AUniform free residual chlorineUniform and consistent pH valueGymnasiumSwimming poolsMixed flowMarine engineering
A mixed-flow and countercurrent swimming pool includes a swimming pool body, a water circulating purifying and supplying system, a disinfecting system, a heating and constant temperature system and awater quality regulation system. The swimming pool body is connected with each system through pipelines and internally provided with a bottom emptying opening, water inlets, an overflow backwater opening, pollution sucking openings, an escalator, a swimming lane line and an underwater lamp. The bottom emptying opening is arranged on one side of a deep water area of the bottom of the swimming poolbody. The water inlets are distributed at the bottom of the swimming pool body in a net shape. The overflow backwater opening is arranged in an overflow backwater tank at the periphery of the swimmingpool body. The pollution sucking openings are formed in the position of 200 mm below the water surface of the swimming pool body and evenly formed. The water circulating purifying and supplying system adopts a countercurrent or mixed-flow circulating mode. By means of a construction technology for the mixed-flow and countercurrent swimming pool, water flow distribution uniform can be achieved, short flow, eddy current and a stagnant zone do not exist, it is ensured that the PH value of free residual chlorine of different water layers is uniform and consistent, and the situation of pollutant deposition at the bottom of the swimming pool is reduced effectively.
Owner:朱旭东

Integrated reverse osmosis filter element

The invention relates to an integrated reverse osmosis filter element. A water collecting pipe is arranged at the center of the reverse osmosis filter element, a water collecting hole is formed in the water collecting pipe, and purified water filtered by the reverse osmosis filter element is collected by the water collecting hole and flows into the water collecting pipe; and a rear filter element is arranged in the water collecting pipe, and the rear filter element further filters the purified water flowing into the water collecting pipe. By virtue of the arrangement, the rear filter element is arranged in the water collecting pipe of the reverse osmosis filter element in an integrated way, so that the reverse osmosis filter element integrates the rear filter element which has the functions of improving taste of the purified water filtered by a reverse osmosis membrane and adding minerals; meanwhile, overall size of the integrated reverse osmosis filter element after integration is not changed, and the aims of optimizing design, reducing the number of the filter elements and improving filter element integration level are achieved; and besides, the integrated reverse osmosis filter element provided by the invention is simple in structure, obvious in effect and applicable to popularization and application.
Owner:QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER

Autotrophic denitrification artificial pond, construction method and method for denitrifying sewage by utilizing artificial pond

InactiveCN111717995AHigh deep denitrification efficiencyConducive to deep denitrificationWater contaminantsTreatment with aerobic and anaerobic processesWater qualityTotal nitrogen
The invention discloses an artificial pond, a construction method and a method for deep denitrification of sewage by using the artificial pond, and belongs to the field of innovation of environmentalengineering water treatment processes and theories. An artificial pond bed body is excavated in a sewage land to be treated, and filler blocks comprising sulfur, limestone, zeolite and volcanic rock are laid in a sulfur filler area at the bottom; an ecological floating island floating in water is arranged in the water body of the artificial pond, plants are planted on the part above the water surface, and a biological carrier filler is suspended on the part below the water surface. To-be-treated sewage is introduced into the artificial pond, and a bio-film culturing treatment is performed until the effluent quality is stable and the total nitrogen removal rate reaches 75% or above. A nitrification and de-nitrification treatment is carried out on ammonia nitrogen in the sewage by the artificial pond to realize deep nitrogen removal; the filler in the artificial pond is detachable, the artificial pond is convenient to construct and disassemble; the turbidity of the effluent treated by the method is obviously reduced, the manufacturing cost is low, the nitrogen removal efficiency is high, and the removal rates of ammonia nitrogen, total nitrogen and nitrate nitrogen all reach 80% or above.
Owner:BEIJING FORESTRY UNIVERSITY

Equipment used for reinforcing composite knitted non-woven fabric

The invention discloses equipment used for reinforcing composite knitted non-woven fabric, and relates to the technical field of non-woven fabric equipment. The equipment comprises a supporting plate,a melting box, a high-pressure pushing mechanism, a spray head, a guide plate, a discharge roller, a first guide roller, a water storage tank, a hot pressure roller, a material receiving frame, a first cooling roller, a second cooling roller, a third cooling roller, a water pump, a first water conveying tube, a second water conveying tube and a third cavity. The equipment can perform three-time cooling treatment on semi-finished product cloth, gradually reduces a cooling temperature, can realize gradual type cooling treatment on the semi-finished product cloth, enables a knitted fabric layerto tightly paste to a non-woven fabric layer, is better in combination effect, directly conveys semi-finished products of non-woven fabric onto the knitted fabric, can effectively reduce production processes, saves working cost, and shortens processing time; and water flow inside a second cavity enters the third cavity, so that dual cooling treatment on the semi-finished product cloth can be realized, and therefore, semi-finished product cloth cooling is more uniform.
Owner:宁夏灵智科技有限公司

Cylindrical optical fiber water cooling device

The invention provides a cylindrical optical fiber water cooling device. The cylindrical optical fiber water cooling device comprises a cylindrical water cooling body, and a mounting through hole is formed in the cylindrical water cooling body. An optical fiber carving groove for allowing an optical fiber to be wound is formed in the outer surface of the cylindrical water cooling body. A water inlet for water input, a water outlet for water output and a water flow channel communicating with the water inlet and the water outlet are formed in the cylindrical water cooling body. An input water dividing column communicating with the water inlet for dividing water flow entering from the water inlet is arranged in one end of the water flow channel. At least two input water dividing holes communicating with the water flow channel are formed in the input water dividing column in a layered manner. Compared with the prior art, the cylindrical optical fiber water cooling device has the advantagesthat the water flow flows into the water flow channel in a layered manner through the input water dividing column, the water flow flows out in a layered manner through an output flow dividing column,the flowing direction of the water flow is disturbed by a flow disturbing part in the water flow channel, thus the water flow is evenly distributed in the water flow channel, optical fibers wound inthe cylindrical water cooling body are good in heat radiating effect, and meanwhile space is saved.
Owner:东莞市迈泰热传科技有限公司

Connecting structure of electromagnetic valve and water in-out pipeline

The invention discloses a connecting structure of an electromagnetic valve and a water in-out pipeline. The connecting structure comprises the electromagnetic valve and a switchover part, wherein theelectromagnetic valve comprises a valve body; the valve body comprises a cavity; a first water inlet pipe and a first water outlet pipe are arranged on the valve body; the first water outlet pipe is arranged at the inner hole of the first water inlet pipe; a first water inlet passage is formed between the outer wall of the first water outlet pipe and the inner wall of the first water inlet pipe; the inner hole of the first water outlet pipe forms a first water outlet passage; the switchover part comprises a base, a second water inlet pipe and a second water outlet pipe; the second water inletpipe and the second water outlet pipe are fixedly arranged on the base; a second water inlet passage is formed between the outer wall of the second water outlet pipe and the inner wall of the second water inlet pipe; and the inner hole of the second water outlet pipe forms a second water outlet passage. The connecting structure is simple, small and exquisite in size, small in occupied area, more convenient for butt joint with the water in-out pipeline and unlikely to be mounted reversely.
Owner:ZHEJIANG DAWEI ELECTRONICS

High-efficiency open network pipe channel reverse osmosis membrane module

The invention relates to a high-efficiency open network pipe flow channel reverse osmosis membrane module, including a membrane shell, a central water production pipe arranged in the membrane shell, and several membrane elements arranged around the central water production pipe. The membrane element has an open network pipe flow channel, and the membrane shell One end of the water inlet is provided with a water inlet flange end cover, and the inner side of the water inlet flange end cover is provided with a water inlet swirling flow guide plate; one end of the membrane shell outlet is provided with a water outlet flange end cover, and the inner side of the water outlet flange end cover is installed There is a water outlet swirling diversion plate; the ends of the central water production pipe are respectively provided with water production joints; the inner peripheral wall of the membrane shell is provided with a circular card groove, and a retaining ring is arranged in the card groove, and the retaining ring is tightly pressed against the end cover; Along the water inlet direction, it includes at least two sets of membrane elements connected in series before and after, and the two membrane elements connected in series in the axial direction are communicated through a diversion tube connector. The application can simultaneously take into account the advantages of resistance to pollution and blockage, small pressure loss, uniform water flow distribution, larger effective area of ​​the membrane, simple structure, convenient maintenance, and long service life.
Owner:JIANGSU KUNYI ENVIRONMENTAL ENG CO LTD

Vegetation Restoration System and Method for Vegetation Restoration Using the System

The invention provides a vegetation recovery system which comprises an exposed hillside with a certain slope or level sandy land, a water cellar arranged in a high position of the hillside or a level position higher than the sandy land, vegetation planting units laid along a sloping surface of the hillside or the sandy land lower than the water cellar, a main flow pipe and branch pipes; the vegetation planting units comprise square plastic frames, crossed four-way pipes located in the centers of the plastic frames and provided with openings on the top surfaces, and cotton yarns located at the openings of the top surfaces of the four-way pipes and extending to the side edges of the plastic frames; the four-way pipes in the centers of the adjacent vegetation planting units are mutually connected via the branch pipes; one end of the main flow pipe is connected with a water outlet at the bottom of the water cellar; and the other end of the main flow pipe is connected with the branch pipe in any vegetation planting unit.The vegetation recovery system employs the vegetation planting units in special structures, is convenient to construct and low in maintenance cost, and does not require manual sprinkling and watering, a plant survival rate is high, and after plants grow, roots of the plants can penetrate into rock or the earth surface and can exert a good water holding and soil fixation effect.The invention further provides a method for vegetation recovery of the hillside or the sandy land exposing the rock with the vegetation recovery system.
Owner:王承辉
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