42results about How to "Invest fast" patented technology

The invention relates to a multi-metal recovery processing technique of waste liquid generated in a germanium producing process, belonging to the technical field of non-ferrous metal wet method metallurgy. The multi-metal recovery processing technique comprises the following steps: extracting germanium from the waste liquid generated in the germanium producing process by an extractant A and a kerose diluent, washing, carrying out back-extraction, removing impurities, purifying, depositing the germanium and electrolyzing to obtain the metal germanium with the purity of 99.99%; firstly extracting iron and partial impurities from the residual waste liquid after extracting the germanium by an extractant B and the kerose diluent, and extracting indium from the residual waste liquid after extracting the iron by the same organic extractant B, adjusting the pH, extracting the indium by the extractant A, carrying out the back-extraction, neutralizing, oxidizing, removing the impurities and replacing to obtain spongy indium, and then briquetting and casting to obtain 99% metal indium. The invention has the advantages of short process flow, small occupied area, few investment, fast implementation and good working conditions, solves the problems that the valuable metal in the waste acid solution can not be recovered and has higher value of the resource comprehensive utilization. Furthermore, the metal recovery rate is larger than 92%; the purity of the obtained product, metal germanium, is 99.99%, and the purity of the metal indium is 99%.

The invention relates to a test specimen fixture for ultrasonic vibration assisted grinding / polishing, and belongs to the field of precision machining and ultra-precision machining. The test specimen fixture comprises an ultrasonic generator, a piezoelectric ceramic transducer, a conical amplitude-change pole, a workpiece clamping system and a trimming ring. Alternating current is converted into ultrasonic-frequency electric oscillation signals by the ultrasonic generator, and the ultrasonic-frequency electric oscillation signals are transmitted to the piezoelectric ceramic transducer by a collector ring. The ultrasonic-frequency electric oscillation signals are converted into ultrasonic-frequency mechanical vibration by the piezoelectric ceramic transducer. The small amplitude of the vibration outputted by the transducer is magnified by the conical amplitude-change pole, and the vibration with the magnified amplitude is transmitted to the workpiece clamping system, so that workpieces can ultrasonically vibrate in ultra-precision grinding / polishing procedures. The test specimen fixture has the advantages that the test specimen fixture is compact in structure, simple in operation and high in efficiency and applicability; the machining precision and the surface quality of each workpiece can be obviously improved; grinding / polishing conditions further can be improved, for example, cutting force and cutting heat can be reduced, and vibration can be eliminated or suppressed; the durability of a grinding disc and the durability of polishing cloth can be improved, and the like.

A Radix Acanthopanacis Senticosi wine and its production are disclosed. The process is carried out by taking pure natural Radix Acanthopanacis Senticosi as main raw material, adding into Milkvetch Root, Barbary Wolfberry Fruit, Common Yam Rhizome, Hawthorn Fruit, Ginseng, Sea Horse and Chinese Caterpillar Fungus, extracting effective ingredients by decocting and boiling method, and blending with pure cereal spirit, honey powder, honey and royal jelly proportionally. It's simple, cheap and fast, has various raw materials and special formula, it can soften cardiovascular function, improve micro-circulation, enhance body immunity, invigorate spleen and nourish stomach, strengthen body and prevent diseases; it costs low and tastes good and can be used as medicinal diet drinking wine.

The invention provides a new process for preparing high-purity magnesium oxide by normal temperature carbonization and low temperature pyrolysis. In the process, two calcining steps and one drying step are adopted, namely a high-purity magnesium oxide product can be obtained by calcining crude ore, hydrolyzing, carbonizing, drying and calcining; two external burning type rotary kiln calcining devices and system closed production are adopted; CO2 gas produced in a rotary kiln is collected and purified in a centralized way for carbonization; the waste heat of hot smoke produced outside the kiln is used for drying; the waste heat of a calcined hot material and vapor produced during the pyrolysis outside the kiln are used for pyrolysis; therefore, effective recycling of heat energy is realized, technical equipment are optimally matched and highly utilized, the heat energy is fully and effectively utilized, the product has high quality, the process is low in energy consumption and cost, has high benefit and is environmentally-friendly and suitable for calcining ores of various grades, such as magnesite, dolomite and the like.

The invention discloses a power generating device by using wave energy. The device is characterized in that: a hydraulic device is axially connected with a fixed frame; one end of a hydraulic rod is provided with a piston, while the other end is axially connected with a float block; the float block is axially connected with a connecting plate; the connecting plate is axially connected with the fixed frame or a fixture on the shore; a hydraulic cylinder is connected with a suction pipe; a suction port is reserved on the suction pipe; a one-way valve is arranged on the suction pipe, and is connected with a water outlet pipe; and a one-way valve is arranged on the water outlet pipe. The power generating device has the advantages that: hydraulic oil is filled in the hydraulic cylinder, not only has certain lubricating function and reduces the friction and corrosion of the piston and the hydraulic cylinder, but also can effectively extrude sea water out of the water outlet pipe and avoid the problems of energy waste and too low pressure caused by extruding air; and the whole device can effectively increase the sea water level for hydraulic power generation by sufficiently utilizing the huge energy of sea water waves.

The process of shifting long copper bar continuously and tin plating with jet flow includes passing the long copper bar through a miniature electroplating bath, and jetting plating solution to the copper bar in high speed upwards with jetting pipes for electroplating the four surfaces of the copper bar in continuous moving. The process has high homogeneity of plating solution and great allowed current density. The present invention has the advantages of low investment, simple operation, capacity of realizing complete plating and local plating, high plating quality, etc.

The invention discloses a tire die for producing a precure tread. The tire die for producing the precure tread comprises a base, wherein a plurality of inner moving blocks I and a plurality of inner moving blocks II are arranged on the base and distributed at intervals to form an annular structure; a closed curved surface which is in close fitting with the tread is formed at the outermost ring of the annular structure; a plurality of annularly-distributed patterned blocks are arranged at the outer ring of the annular structure; a storing space of the precure tread is formed between each patterned block and the corresponding inner moving block I; an operating ring is coaxially arranged at an inner ring of the annular structure; the operating ring is connected with each inner moving block I and each inner moving block II through corresponding push-pull devices; when the operating ring is propped, the inner moving blocks I and the inner moving blocks II are dragged through the push-pull devices to move toward the center of the annular structure.

The invention discloses a method for reducing water on urban streets which builds rainwater accumulation devices in residential quarters or other public areas such as squares, parks and grassy areas without affecting the traffic, wherein the rainwater accumulation devices are communicated with urban sewerage backbone network through drainage branch pipes with drainage flow regulating devices. When it rains, the rainwater on areas except the urban streets firstly flows in the rainwater accumulation devices, then water in the rainwater accumulation devices is drained to the urban sewerage backbone network designedly and organically according to the flow set by the drainage flow regulating devices to outflow. The constant flow organically drainage is carried out according to different zones and different time intervals along the rainwater accumulation devices, the rainwater branch pipes and the backbone pipes so as to solve the conflict that the drainage capacities of the drainage backbone pipes and river channels are not enough as rainwater is drained intensively in short time, and reduce the influence of standing water to the work and life of people.

Disclosed is a raceway neck-and-neck storage parking device of a shears-fork transportation stacker type, which comprises a storage type garage frame, a laneway, parking areas, wheel supporting raceways, a vehicle separating, locating, transversely moving, placing-in and taking-out device and a shears-fork transportation stacker. Each layer of the storage type garage frame at the two sides of the laneway is provided with a plurality of parking areas lengthways along the laneway; the parking areas are transversely provided with front wheel and rear wheel supporting raceways in continuous arrangement to form whole neck-and-neck parking space which is also the transverse transportation raceways for vehicles; the vehicle separating, locating, transversely moving, placing-in and taking-out devices which are positioned between the front wheel and rear wheel supporting raceways can transversely move and stretch into the shears-fork transportation stacker and are applied to placing-in and taking-out and transversely moving vehicles; the upper part is provided with the shears-fork transportation stacker for the same wheel supporting raceways, which can walk lengthways along a guide rail at the inner lower part of the laneway; the vertical vehicle lifting mechanism of the shears-fork transportation stacker is a multi-group parallelogrammical shears-type link mechanism driven by a hydraulic cylinder at the lower part. The storage parking device of the invention has large vehicle storage capacity, simple structure, low cost, reliable operation and high efficiency.

Production of biological diesel oil from agricultural and forest refuse is carried out by: drying, crushing, agitating, reacting and distilling. The biological diesel oil consists of agricultural and forest refuse 35-55wt%, solvent 30wt%, auxiliaries 9wt%, catalyst 1wt% and additive 5-25wt%. The raw materials include one or multiple kinds of agricultural and forest refuse, tree braches and leaves, straws and cottonseed shell etc; solvent is refined anthracene oil, auxiliaries is methanol, catalyst is aluminum chloride and additive is water coal slurry. It has good effect.

The no-traffic lamp city road network consists of local check road units, which is in the structure form of one, two, four, six, nine or more checks. Each of the check road units has cross-over intersections in the four corners, other planar or cross-over intersections, lane separations, entrances and exits, pedestrian bridges and pedestrian underpasses. The check road units may constitute fast traffic network with great traffic capacity.

In the invention, for the power needing energy storage, by utilizing various equipment and facilities of a hydraulic power station and building various pumping equipment and facilities, part of water behind the dam of the hydraulic power station is pumped to flow back to the region ahead the dam of the original reservoir, thereby achieving the purpose of energy storage. Energy resources such as kinetic energy, potential energy, pressure energy and the like generated by the newly mixed water ahead the dam are converted into the mechanical energy of generating equipment and then converted into stable electric energy to be sent out through the network. By establishing a great electric energy storage platform for combining a plurality of reservoirs and stations with other hydraulic power stations, the invention can effectively solve the problem of energy storage of power and especially green power, thereby promoting the healthy development of the green power in larger scale, higher speed and wider range. Moreover, an extra-high voltage power transmission technology, a smart grid technology and other related technologies are used for realizing a good situation of adjustable, controllable and sustainable power generation, power storage, power utilization and power transmission and transformation, thereby providing services for economic and social development.

The invention relates to a concentrated heating boiler thermoelectric generating system, which comprises a heating boiler; a heating user; and a water pump that form the heating system, wherein it is characterized in that: the heating boiler is connected to the steam boiler via tube; the steam boiler via steam tube is connected to the inlet tube of turbine; the outlet tube of turbine is connected to the heat exchanger; the condense water tank of heat exchanger via tube and water pump is connected to the oxygen remover; the oxygen remover via tube and water feeding pump is connected to the steam boiler; the output axle of turbine is connected to the generator; the output electricity of generator is connected to the electric appliance. The invention has high thermo-electric ratio, high heat utilization, small volume, and low cost.

The invention discloses a CO cryogenic separation system using nitrogen cycle. The CO cryogenic separation system comprises a main heat exchanger, a cryogenic separator, a hydrogen stripper, a demethanizer, a denitrogenation tower, a condensing evaporator and a cycle nitrogen compressor. The invention further discloses a CO cryogenic separation method using nitrogen cycle, wherein the CO cryogenic separation method comprises process steps of heat exchange, dehydrogenation, demethanation, denitrogenation, nitrogen compression refrigeration cycle and the like. The CO cryogenic separation system and method provided by the invention have beneficial effects that a nitrogen cycle compression and refrigeration process is adopted to fully play roles of high efficiency and low investment of a nitrogen compressor; the condensing evaporator is arranged to cleverly integrate the demethanizer and the denitrogenation tower, so as to greatly reduce power consumption of distillation; an operation pressure of a distillation tower is increased or a CO liquid pump is provided for replacing a CO compressor so as to meet pressure requirements of CO products; start-up and purification time of the device can be shortened and a venting amount at a start-up stage can be reduced; the system and the method has advantages of low energy consumption, fast start-up, investment saving and less emission, are in line with a general trend of energy conservation and consumption reduction, and have good economic and environmental protection benefits.

The invention relates to a production process of high purity silver by high frequency electrolysis. Through the special design of silver-containing mineral powdering purification, electrolytic oxidation treatment, high frequency oscillation filtration treatment and activation treatment process steps and special optimization of relevant parameters, the technical problems of complex impurity species, incapability to effective recovery of silver, poor fineness of recovered silver, many chemical reagents, easy pollution and the like are overcome, and the production process provided by the invention realizes the advantages and effects of wide application range of treatment scale, simple equipment, small floor space, applicability to existing process transformation, small investment and quick effect, low treatment cost, multi-step purification, high impurity removal rate, good product quality and stable fineness, etc.

The invention relates to a test specimen fixture for ultrasonic vibration assisted grinding / polishing, and belongs to the field of precision machining and ultra-precision machining. The test specimen fixture comprises an ultrasonic generator, a piezoelectric ceramic transducer, a conical amplitude-change pole, a workpiece clamping system and a trimming ring. Alternating current is converted into ultrasonic-frequency electric oscillation signals by the ultrasonic generator, and the ultrasonic-frequency electric oscillation signals are transmitted to the piezoelectric ceramic transducer by a collector ring. The ultrasonic-frequency electric oscillation signals are converted into ultrasonic-frequency mechanical vibration by the piezoelectric ceramic transducer. The small amplitude of the vibration outputted by the transducer is magnified by the conical amplitude-change pole, and the vibration with the magnified amplitude is transmitted to the workpiece clamping system, so that workpieces can ultrasonically vibrate in ultra-precision grinding / polishing procedures. The test specimen fixture has the advantages that the test specimen fixture is compact in structure, simple in operation and high in efficiency and applicability; the machining precision and the surface quality of each workpiece can be obviously improved; grinding / polishing conditions further can be improved, for example, cutting force and cutting heat can be reduced, and vibration can be eliminated or suppressed; the durability of a grinding disc and the durability of polishing cloth can be improved, and the like.

The invention discloses a microorganism composite microbial agent, a preparation method thereof and a sewage treatment system. The microorganism composite microbial agent comprises the following strains, by weight, of 20-35% of bacillus amyloliquefaciens, 25-40% of bacillus subtilis, 15-30% of bacillus licheniformis and 20-30% of bacillus mucilaginosus. According to the microorganism composite microbial agent, rural domestic sewage can be effectively treated, and various pollutants in the sewage can be removed; through reasonable design of the sewage treatment system, in a first-stage degradation pool, a mixed microbial agent is added; and aerator pipes are installed in the degradation pool of every stage, and stage-by-stage overflow and aeration are achieved, so that the sewage in the pool of every stage has a chance to make contact with the microbial agent and then to be sufficiently degraded and decomposed.

The invention discloses an experiment device for recycling ammonia in LED (light emitting diode) mixed waste gas by a compression refrigeration method and a verifying method of the experiment device. The verifying method is mainly used for verifying that GaN is deposited by the ammonia and a trimethyl gallium gas phase of a semiconductor light emitting diode (LED); the mixed gas of ammonia, nitrogen and hydrogen is discharged in a production process, and a little of ammonia in the mixed gas is recycled by the compression refrigeration method technology; the correctness of chemically technical software measurement during technical design is verified; the possible deflection in a design and actual implementation process is prevented; the design precision is improved; the investment loss is reduced.

The invention relates to a float-type sludge scraping and suction system and a sludge scraping and suction operation method. The system is composed of a secondary sedimentation pond body, a float boat bridge crane and a sludge suction and scraping device. The secondary sedimentation pond body is used for separating sediment sludge in a pond, and for removing pond bottom sludge. The float boat bridge crane drives the sludge suction and scraping device to perform reciprocation movements in the secondary sedimentation pond. The suction and scraping device sucks and scraps sediment sludge at the bottom of the secondary sedimentation pond. The overall body of the secondary sedimentation pond is a rectangular box body. Reflux canals are arranged on the two sides of the secondary sedimentation pond body, and are arranged along the two sides of the secondary sedimentation pond body. The reflux canals recovers the sediment sludge at the bottom of the secondary sedimentation pond, and discharges the sludge out of the secondary sedimentation pond. The system provided by the invention has the advantages of scientific design, simple structure, easy operation, small volume, smooth continuous travelling, low noise, convenient maintenance, low maintenance cost, automatic travelling correction, simple structure, reasonably layout, low investment, fast effect, low operation cost, convenient management, and wide application range. With the system, no additional antifreeze or heat preservation facility is needed in winters. The system and the method can be widely applied in sedimentation ponds.

The invention provides a technological method for preparing biodiesel by using agricultural and forestal waste, and relates to the field of energy. The invention provides a new method for producing the biodiesel aiming at the defects that the biodiesel research is complicated in technology, high in cost, expensive in manufacturing cost, and the like. The method comprises multiple processes, i.e., natural drying, crushing, stirring, reacting and distilling; the biodiesel is characterized by being prepared according to the following component formula by weight percent: 55-35% of agricultural and forestal waste, 30% of a solvent, 9% of an auxiliary agent, 1% of a catalyst and 5-25% of an additive; the agricultural and forestal waste as well as tree branches and leaves are taken as raw materials; the agricultural and forestal waste comprises one or more of rice straw, cotton seed hull and the like; refined anthracene oil is taken as the solvent, methyl alcohol is taken as the auxiliary agent, aluminum chloride is taken as the catalyst, and coal water slurry is taken as the additive; the biodiesel is prepared by stirring the needed materials, carrying out a reaction, and distilling. After being tried in an agricultural vehicle on the road, the biodiesel is proved to have a good effect, thus being quite popular with users.

The invention provides a permanent magnetic power generator and aims to provide a magnetic power generator which can constantly output a continuous power without supplying or supplementing of other energies. The permanent magnetic power generator is realized through a technical solution which is characterized in that two magnetic slide blocks are provided with an open recessed trough; permanent magnetic blocks which are symmetrical with each other are inlaid at the front-side straight wall and the back-side straight wall of the open recessed trough; the two magnetic slide blocks are arranged vertically in the vertical direction in a back-to-back manner; one end of each of the two magnetic slide blocks is slidably connected with a bearing support at one end of the base through a connecting shaft, and the other end is connected with a crankshaft mechanism of a flywheel support at the other end of the base through a crankshaft connecting rod; the open recessed trough of the two magnetic slide blocks is internally provided with a slide block direct changing mechanism which is fixed through vertical column supports at two sides and slides; the slide block direction changing mechanism comprises a transverse sliding rod which moves through the vertical column supports at two sides, and two touch moving connecting rods which have opposite angle directions and are symmetrical relative to the central axis of each magnetic slide block; each touch moving connecting rod is obtained through hinging two rods; and one end of each touch moving connecting rod is fixed with the vertical column support, and the other end is hinged with the middle part of the transverse sliding rod.

The invention discloses a pig feed capable of effectively utilizing fruit and vegetable wastes and a preparation method thereof. The pig feed is prepared from the following raw materials in percentageby mass: 60 to 80% of fruit and vegetable waste, 10 to 30% of wheat bran, 5 to 20% of corn flour, and 0.5 to 1% of fermenting bacteria. The preparation method comprises the following steps of pretreating the fruit and vegetable wastes, preparing the fermenting bacteria, mixing, and blending; adding the wheat bran and the corn flour into the blended fruit and vegetable wastes, and uniformly stirring, so as to obtain mixture; boiling, sterilizing and fermenting; adding the fermenting bacteria into the mixture, uniformly stirring, and fermenting for 3 to 5 days, so as to obtain wet feed; performing microwave and low-temperature drying on the wet feed, so as to obtain dry feed; crushing and screening the dry feed, so as to obtain the pig feed. The pig feed has the advantages that the investment is small, the effect is quickly acted, and the market prospect is broad; the preparation cost is reduced, the nutritional value is improved, the palatability is enhanced, the pig is promoted to quickly grow, and the pig feed is a natural health, green and safe organic feed.

The invention discloses a water cultivation method of herbs to treat eutrophic water, comprising the steps: PVC plastic tubes are taken as a frame, a nylon net is bound on the frame to form a floating bed; seeds of grass species are soaked for accelerating germination at a room temperature of 28-32 DEG C, the seeds after germination are sowed in a seedling bed formed by a PE membrane with even eyelets to keep the moisture content and temperature, facilitating the germinated seeds to take root and grow; the seedling bed is put on the floating bed that floats in the eutrophic water after the roots of the grass species grow into three-leaf seedlings and come out through the eyelets of the PE membrane, then nutrient salts of nitrogen and phosphors, etc. in the water body are absorbed by the herbs, meanwhile, allelochemicals are secreted to inhibit the propagation of algae, so as to realize in-situ bioremediation of the eutrophic water and promote feed production when improving the water quality. The whole treating method realizes a good circulation system between 'environment-plant-animal-human'.

Disclosed is a raceway neck-and-neck storage parking device of a shears-fork transportation stacker type, which comprises a storage type garage frame, a laneway, parking areas, wheel supporting raceways, a vehicle separating, locating, transversely moving, placing-in and taking-out device and a shears-fork transportation stacker. Each layer of the storage type garage frame at the two sides of thelaneway is provided with a plurality of parking areas lengthways along the laneway; the parking areas are transversely provided with front wheel and rear wheel supporting raceways in continuous arrangement to form whole neck-and-neck parking space which is also the transverse transportation raceways for vehicles; the vehicle separating, locating, transversely moving, placing-in and taking-out devices which are positioned between the front wheel and rear wheel supporting raceways can transversely move and stretch into the shears-fork transportation stacker and are applied to placing-in and taking-out and transversely moving vehicles; the upper part is provided with the shears-fork transportation stacker for the same wheel supporting raceways, which can walk lengthways along a guide rail atthe inner lower part of the laneway; the vertical vehicle lifting mechanism of the shears-fork transportation stacker is a multi-group parallelogrammical shears-type link mechanism driven by a hydraulic cylinder at the lower part. The storage parking device of the invention has large vehicle storage capacity, simple structure, low cost, reliable operation and high efficiency.

The present invention relates to a new power drive system, that is, a water and wind new power fuel-free system for a fuel-driven vehicle, specifically, engine power systems of all fuel-driven vehicles are removed, driving loads do not need fuel, which can completely change the serious harm of pollution to air caused by exhaust emission of fuel vehicles, and completely revolutionize the clean andgreen technology of no fuel, no fuel consumption, no emission and no pollution, and the water and wind new power fuel-free system is suitable for refitting and installing of all fuel-driven vehicles.

The process of building sea cucumber raising pond includes the following steps: producing rectangular and trapezoidal cement slabs with steel sheets in the bottom and lateral sides; building pond foundation in shallow sea with cement mortar and reinforcing bars and stretching the reinforcing bars beyond the foundation by 8-10 cm; forming the pond including gate through assembling cement slabs and welding; filling the gap between the pond bottom and the foundation with sand, broken stone and silt; smelting joints between cement slabs with cement mortar and leveling the inside of the pond with cement. The process has low construction cost and short construction period.

The invention relates to a multi-metal recovery processing technique of waste liquid generated in a germanium producing process, belonging to the technical field of non-ferrous metal wet method metallurgy. The multi-metal recovery processing technique comprises the following steps: extracting germanium from the waste liquid generated in the germanium producing process by an extractant A and a kerose diluent, washing, carrying out back-extraction, removing impurities, purifying, depositing the germanium and electrolyzing to obtain the metal germanium with the purity of 99.99%; firstly extracting iron and partial impurities from the residual waste liquid after extracting the germanium by an extractant B and the kerose diluent, and extracting indium from the residual waste liquid after extracting the iron by the same organic extractant B, adjusting the pH, extracting the indium by the extractant A, carrying out the back-extraction, neutralizing, oxidizing, removing the impurities and replacing to obtain spongy indium, and then briquetting and casting to obtain 99% metal indium. The invention has the advantages of short process flow, small occupied area, few investment, fast implementation and good working conditions, solves the problems that the valuable metal in the waste acid solution can not be recovered and has higher value of the resource comprehensive utilization. Furthermore, the metal recovery rate is larger than 92%; the purity of the obtained product, metal germanium, is 99.99%, and the purity of the metal indium is 99%.

The invention provides a semi-underground energy-saving breeding shed and belongs to the technical field of breeding shed design. The semi-underground energy-saving breeding shed is less in investment, fast in construction and capable of providing appropriate environment conditions for animal growth due to the fact that the semi-underground energy-saving breeding shed is warm in winter and cool in summer. The semi-underground energy-saving breeding shed comprises an overall framework structure and a solar energy heating and water circulation cooling system, wherein the overall framework structure comprises a semi-underground energy-saving breeding shed body. A half of the semi-underground energy-saving breeding shed body is underground. An underground shed body of the semi-underground energy-saving breeding shed body is shaped like V and connected with a herringbone shed which is the ground part of the semi-underground energy-saving breeding shed body. By means of the solar energy heating and water circulation cooling system, a solar energy heat absorber is used for heating the breeding shed in winter, and circulation cooling is performed on the breeding shed by means of low temperature of underground water. Therefore, the semi-underground energy-saving breeding shed is warm in winter and cool in summer by the aid of the ground temperature. The semi-underground energy-saving breeding shed can be applied to design and construction of breeding sheds.

The invention discloses a method for reducing water on urban streets which builds rainwater accumulation devices in residential quarters or other public areas such as squares, parks and grassy areas without affecting the traffic, wherein the rainwater accumulation devices are communicated with urban sewerage backbone network through drainage branch pipes with drainage flow regulating devices. When it rains, the rainwater on areas except the urban streets firstly flows in the rainwater accumulation devices, then water in the rainwater accumulation devices is drained to the urban sewerage backbone network designedly and organically according to the flow set by the drainage flow regulating devices to outflow. The constant flow organically drainage is carried out according to different zones and different time intervals along the rainwater accumulation devices, the rainwater branch pipes and the backbone pipes so as to solve the conflict that the drainage capacities of the drainage backbone pipes and river channels are not enough as rainwater is drained intensively in short time, and reduce the influence of standing water to the work and life of people.