17results about How to "Reduce runoff" patented technology

The invention belongs to the technical field of rock-soil side slope protection, and particularly relates to an expansive soil side slope flexible ecological comprehensive supporting system which comprises an intercepting ditch, a vegetation protection layer, a composite waterproof layer, flexible anchor rods, water seepage and drainage pipes, cultivation and planting soil, a drainage ditch, a backfill soil layer, a step-shaped slope surface, a slope surface and slope protection vegetation. The slope surface is excavated into a step-shaped slope surface, a composite waterproof layer, expansive soil backfill soil, a vegetation protection layer and cultivation and planting soil are sequentially arranged on the step-shaped slope surface from bottom to top, and slope protection vegetation is planted and formed on the cultivation and planting soil; the composite waterproof layer is fixed to the step-shaped slope face through the flexible anchor rods. The vegetation protection layer and the slope protection vegetation together reinforce the shallow soil body, and the composite waterproof layer and the flexible anchor rod play a role in absorbing and relieving the received expansive force. The method has an ecological greening effect, has the functions of common supporting of the shallow surface layer and the deep layer of the expansive soil slope, flexible reinforcement and expansion reduction and allowable generation of a small amount of deformation, is simple in construction and high in efficiency, and can realize long-term stability of the shallow surface layer and the deep layer of the expansive soil slope.

The invention relates to an intelligent photovoltaic power generation control device which integrates a photovoltaic power generation panel, a series connection base, a supporting assembly, a water collection groove, a rainwater collection assembly, a cleaning assembly and a control assembly. A series base and a series interface are arranged below the photovoltaic panel, so that modular installation is facilitated; the supporting assembly comprises two supporting rods, the light following function is achieved, and the photovoltaic panel is automatically adjusted to face the sun. A water collecting groove above the photovoltaic panel and a rainwater collecting assembly at the bottom of the photovoltaic panel can collect and store rainwater; the cleaning assembly comprises a spraying unit and a cleaning brush and is used for automatically cleaning the surface of the photovoltaic panel; the control assembly monitors operation of the system and adjusts the posture of the photovoltaic panel and work of the cleaning assembly. Redundant electricity generated by the photovoltaic power generation panel in sunny days is stored for the system to use, and the light following function is not started in cloudy days, so that electric energy is saved; through the design, the efficiency and sustainability of photovoltaic power generation are improved; the energy conversion efficiency can be improved, the reliability and automation level of the system are enhanced, and the utilization and environmental friendliness of rainwater are improved.

The present invention relates to the technical field of ecological concrete slurry, and specifically to an ecological seed-carrying slurry for the slope of a mine dump, a preparation method and its application. Aiming at the special environmental characteristics of the Inner Mongolia mining area, the present invention prepares a new type of artificial aggregate containing growth domains and seeds, which is composed of a three-layer structure, each layer having a specific function, so as to achieve the purpose of promoting the germination of multi-source species, plant growth, providing nutrition and improving the soil environment. The slurry can not only effectively utilize solid waste and reduce costs, but also adopts in-situ point-type layered hole sowing to shorten the vegetation restoration cycle in the ecological restoration of the slope, greatly improve the survival rate of tree and shrub seed sources, reduce the number of watering times, save restoration costs, and reduce the workload of management. While effectively promoting vegetation restoration, it strengthens the stability of the slope, prevents soil and water loss, slows down runoff and consolidates the soil, providing an efficient and sustainable solution for the ecological restoration of green mines in Inner Mongolia.

The invention relates to an integrated device and method for in-situ mineralization of rainwater through a bioretention facility. The integrated device comprises a bioretention device body, and the bioretention device body is composed of a super high-rise building, a water storage layer, a covering layer, a filler layer and a drainage layer from top to bottom. The invention further provides a method for in-situ mineralization of rainwater through the integrated device, and the method comprises the steps that the rainwater flows into the super high-rise building through the road surface confluence and flows into the water storage layer from the super high-rise building, and the rainwater passing through the water storage layer infiltrates into the covering layer; the rainwater infiltrated through the covering layer enters the filler layer; rainwater mineralized by the filler layer infiltrates into the drainage layer, the water volume in the drainage layer is gradually increased and the water storage liquid level is gradually increased along with the convergence of the rainwater, and when the water storage liquid level of the drainage layer exceeds the height of the upper edge of the perforated drainage pipe, the rainwater flows into the perforated drainage pipe through the nylon net, so that in-situ mineralization and collection of the rainwater are realized. According to the invention, the problems of scattered layout, large occupied space, complex operation and the like of the existing sectional mineralization treatment technology are solved.

The invention provides a microorganism curing fish-scale pit based on concrete waste and a preparation method of the microorganism curing fish-scale pit based on the concrete waste. The microorganism curing fish-scale pit comprises concrete broken materials, microorganism curing bacterium liquid, cementing liquid and natural coconut fiber, the strength and internal friction force of the whole material are increased, good attachment and biomineralization action points are provided for microorganisms, and a large number of microorganisms can generate calcium carbonate crystals to bond soil particles and short coconut fiber materials with the attachment points. The short coconut fiber is a reinforced body of the integrally cured material, has good toughness and tensile strength, and can enhance the mechanical strength and erosion resistance of the cured material, the fish-scale pit has good mechanical strength, erosion resistance, durability and ecological environmental protection property, the concrete waste and local soil are used as main materials, and the cost is reduced. And a whole is formed by utilizing a mineralization reaction principle of a microbial strain and natural coconut fibers, so that the requirements of energy conservation and low carbon are met.

The invention relates to the technical field of soil improvement, and discloses an expansive soil improvement material and a preparation method thereof.The expansive soil improvement material is prepared from, by mass, 1-5% of sodium carboxymethyl cellulose, 1-5% of anionic polyacrylamide, 5-25% of alkali-activated rice hull ash and 65-93% of in-situ soil. The soil bearing capacity is improved, water and soil loss is prevented, surface runoff is reduced, the water retention capacity of soil is improved, harmful substances cannot be generated in use, the method is harmless to the environment and human health, the method is simple, a complex treatment process is not needed, the construction difficulty and cost are reduced, and energy loss in the whole production process is reduced. The energy consumption in the whole production process is reduced, meanwhile, the overall production efficiency is improved, the energy loss is reduced, the pollution emission in the production process is reduced, and green and environment-friendly production is achieved.

The utility model discloses a computer case cold row of side -placed refrigerant connecting mouth relates to water -cooled radiator field. This computer case cold row of side -placed refrigerant connecting mouth, including the cold row main part, is installed with first return flow channel and second return flow channel respectively at the both ends of cold row main part, and is installed with refrigerant circulation connecting mechanism between first return flow channel and second return flow channel, and the refrigerant circulation connecting mechanism includes two groups of refrigerant connectors fixedly arranged in the side portion of cold row main part, and the inside of first return flow channel is provided with the partition, and the partition divides cold row main part into first channel and second channel, and first channel and second channel one end are linked with second return flow channel, and the other end of first channel and second channel is linked with two groups of refrigerant connectors respectively, so that the flow path flow of refrigerant is reduced by half when flowing through cold row main part, and the whole flow through stroke is doubled, makes the refrigerant more efficient and heat exchange with the heat dissipation fin, thereby improves the heat dissipation effect.

The utility model discloses a PC stone-like water permeable brick, and relates to the technical field of water permeable bricks. The water permeable hole is formed in the brick body, and a filter frame assembly is mounted on the water permeable hole; the water guide groove is annularly formed in the surface of the brick body and communicated with the water permeable holes, and the depth of the water guide groove is gradually increased from the periphery to the middle; the first buckle assembly and the second buckle assembly are arranged on the left face, the right face, the front face and the back face of the brick body respectively and used for left-right splicing and front-back splicing of the adjacent brick bodies respectively. Through the arrangement of the water permeable holes and the water guide grooves which are matched with the peripheries of the water permeable holes and are gradually deepened from the periphery to the middle, water can be drained into underground water in a concentrated mode, and the filtering frame assemblies installed on the water permeable holes can effectively intercept large pollutants such as suspended particles and leaves in rainwater in the rainwater concentrated drainage process. Meanwhile, the filter frame assembly is simple in structure, convenient to mount with the brick body and convenient to clean.

This invention belongs to the field of ecological restoration and forest management technology in arid and barren mountainous areas, specifically involving a method for establishing inter-forest ecological grasslands to enhance biodiversity. This invention adopts a "forest edge priority, no-till sowing, and native mixed sowing" approach, constructing stable ecological grassland belts at forest edges through no-till sowing. This method effectively enriches the herbaceous layer vegetation of forest land, increases species diversity and aboveground biomass, and enhances the stability and resistance to disturbance of forest ecosystems. Simultaneously, continuous forest edge grassland belts can cover bare ground, curb soil erosion, and promote multi-level, multi-functional, and stable succession of forest ecosystems. This invention is simple to construct, causes minimal disturbance to the surface soil, and is suitable for complex sites with shallow soil layers and high gravel content. The native herbs used are highly resilient, have low management costs, and pose no risk of invasion, making them suitable for promotion in arid and semi-arid artificial forest areas in northern China, demonstrating significant ecological and application value.

The present invention discloses a high-conduction low-loss IGBT device structure and a preparation method thereof, wherein the IGBT device structure comprises an emitter metal layer, a dielectric layer, an N+ source region, a P-type base region, a drift region, a substrate and a collector layer arranged in sequence from top to bottom, and also comprises a trench gate penetrating the N+ source region and the P-type base region from top to bottom and extending into the drift region; wherein an insulating region is arranged between adjacent trench gates in the drift region, and a plurality of N-type doped regions are arranged in the substrate or the collector layer. The high-conduction low-loss IGBT device structure of the present invention and a preparation method thereof can reduce the on-state voltage drop Vcesat of the device, improve the on-state efficiency, reduce the tail current, and reduce the turn-off loss Eoff.

This invention relates to the field of ecological agriculture technology, specifically disclosing a segmented erosion control method for sloping farmland based on plant hedges. The method includes the following steps: dividing the sloping farmland into upper, middle, and lower planting areas according to the terrain from high to low; and then correspondingly installing upper, middle, and lower planting hedges, and constructing a plant community in the lower area. The installation of upper planting hedges includes inoculating the rhizosphere soil with nematodes, or with a combination of nematodes and microbial agents. The microbial agents include at least one of Bacillus, Arthrobacter, Neurospora, or Penicillium. This invention integrates "source control, reservoir enhancement, and potential tapping," effectively intercepting surface runoff and increasing soil moisture infiltration by altering the slope's micro-topography. This is of great significance for improving soil fertility and water and fertilizer resource utilization in dryland farmland, reducing fertilizer use and nitrogen and phosphorus loss, balancing nutrient distribution on the slope, increasing nutrient utilization, and ensuring ecological security.

The present invention is a novel abandoned flow well device, including an abandoned flow well body, a placing platform is provided at the well mouth, a filter screen is provided on the placing platform, a steel mesh cover is provided on the top surface of the filter screen, a plurality of slings are connected to the steel mesh cover, a filter hanging box with an open top surface is connected to the other end of the sling, an upper filter screen and a lower filter screen are provided in the filter hanging box, a No. 1 biological filler is filled between the upper filter screen and the lower filter screen, a plurality of L-shaped overflow pipes are connected to the upper side wall of the filter hanging box, a water outlet pipe is connected to the bottom surface of the filter hanging box, a vertical overflow weir is connected to the bottom surface of the abandoned flow well body, a downstream rainwater pipe is provided on one side of the downstream water tank, an upstream rainwater pipe is provided on one side of the upper part of the upstream water tank, and an abandoned flow pipe is provided on one side of the bottom of the upstream water tank. The present invention is simple and flexible, has a simple structure, can effectively reduce site occupation, and has the function of rainwater purification, making the method of using the abandoned flow well device for rainwater purification particularly convenient and safe, and the overall structure is simple and reasonable, and the purification effect is good.

The utility model relates to the technical field of conveying heat supply, and discloses a large-temperature-difference unit heat exchange device which comprises a pipe body, and heat insulation materials are fixedly installed on the inner wall and the outer wall of the pipe body. The buffer blocks are symmetrically mounted in the pipe body and used for buffering the liquid; the adjusting assembly is arranged in the pipe body and used for adjusting runoff in the pipe body, the adjusting assembly internally comprises a first through plate, a second through plate and a guide rod, the guide rod is fixedly connected with the pipe body, the first through plate is slidably connected with the guide rod, and the sliding block is arranged in the pipe body and abuts against the first through plate; the through holes in the first through plate and the second through plate are rotationally aligned to change the runoff of liquid in the pipe body, when the flow of the liquid in the pipe body is reduced, the elastic piece pushes the second through plate to move towards the first through plate through the characteristics of the elastic piece, the angles of the through holes in the first through plate and the second through plate are changed, and therefore the runoff in the pipe body is reduced; and the runoff is controlled through the flow of the liquid in the pipe body.

The invention provides an intelligent feedback type water-saving anti-erosion device and an implementation method thereof.The device is composed of a fish-scale pit, a flow guide channel, a temporary water storage pit, a rainwater collecting channel and a water storage pond and cooperates with drip irrigation equipment, a water pump, an intelligent controller and a solar energy supply system to work cooperatively. The fish-scale pit is of a layered structure and has the functions of vegetation habitat improvement and runoff regulation and control, and the flow guide channel and the temporary water storage pit are used for dispersing and collecting slope runoff and are matched with the water storage pool to achieve storage and recycling of rainwater. The rainfall, the soil humidity and the vegetation water demand are monitored in real time and dynamically regulated and controlled through the intelligent control system, water can be accurately supplemented through drip irrigation equipment by means of rainwater in the water storage pool in the dry season, and therefore the survival rate of drought-resistant vegetation is effectively increased. By means of the coupling design of engineering structure-ecological vegetation-intelligent control, dynamic balance of runoff interception, soil conservation, moisture regulation and control and vegetation bearing is achieved, and the system has the functions of water saving, erosion resistance and ecological restoration.

The invention belongs to the technical field of farmland management, and particularly relates to a field root division irrigation sowing method which comprises the following steps: S1, ridging with sufficient moisture: ridging after raining or deep ploughing ridging is carried out in the field in the sowing period, and grooves are formed between ridges; s2, sowing: sowing seeds on the ridges; s3, irrigation in the growth period of the crops: supplementing water in the soil by means of rainfall in rainy seasons, and performing trench-separated irrigation in the trenches in dry seasons. According to the irrigation seeding method, the water utilization rate of crops can be increased, water is saved, the growth redundancy of the crops is reduced, and the yield of the crops can be increased.

The invention discloses a terrace side wall lateral evaporation blocking control and yield increasing binary covering method and structure, and belongs to the technical field of dry farming water and soil conservation. In order to solve the problems of lateral migration of soil moisture and low edge yield caused by strong evaporation of terraced field ridges (side walls), the method adopts a'straw and sunscreen net 'binary coupling covering mode. The structure comprises a flat soil substrate layer, a diffusion resistance layer formed by crop straws, and a radiation decoupling and fixing layer formed by a black HDPE (High-Density Polyethylene) sunscreen net from inside to outside. According to the method, lateral evaporation is effectively inhibited and the transverse water potential gradient in the terrace is eliminated through multiple synergistic mechanisms such as radiation interception and cooling by the sunscreen net, water vapor diffusion resistance increase by the straw layer and near-surface wind speed weakening by the composite structure of the sunscreen net and the straw layer, so that soil moisture homogenization is realized, and the yield of crops at the edge of the terrace and the rainfall utilization efficiency of the system are remarkably improved. The method is low in cost, easy to construct, eco-friendly and suitable for dry farming terraced fields such as loess plateau.

A corn and chive composite planting method belongs to the technical field of planting methods. The problems that water and soil loss is serious, biodiversity is reduced, and the income increasing pressure of farmers is large in existing corn single cropping are solved. According to the method, after previous crops are harvested, soil is subjected to deep ploughing or deep scarification in autumn, and fertilization is conducted; in spring of the second year, when the soil is thawed by 15-30 cm, pulp jacking and ridging are carried out, an allium fistulosum planting belt is arranged every 6-8 rows of corn planting belts, and the ratio of the corn planting belts to the allium fistulosum planting belt is (3.6-4.8 m): (1.2-1.5 m); planting the chive as soon as possible after the soil is completely unfrozen, ditching or digging holes in a chive planting belt, planting a cluster of division seedlings of the chive in each hole, treading after planting, and thoroughly watering for fixing roots; corn sowing is conducted 7-10 days after field planting of the allium fistulosum and when the ground temperature is stabilized to be 8 DEG C; and harvesting after the corn and the chive are mature. The method has the advantages of efficient utilization of resources, complementation of ecological functions, superposition of economic benefits and exertion of regional advantages.