129results about How to "Reduce drain pressure" patented technology

The invention discloses a functional rainwater garden suitable for the interior of an urban community grassy area in Shanghai. The functional rainwater garden suitable for the interior of urban community grassy area in Shanghai comprises pretreatment facilities, a water storage layer, water seepage facilities and an overflow facilities, wherein the pretreatment facilities comprise a ring-shaped side slope and gravels; the ring-shaped side slope is positioned on the periphery of the functional rainwater garden; the gravels are covered on the ring-shaped side slope; the water storage layer is a space formed by the ring-shaped side slope and the bottom of the functional rainwater garden in a horizontally encircling manner; the water seepage facilities are positioned at the bottom of the functional rainwater garden; the overflow facilities comprise an overflow pipe penetrating through the thickness direction of the water storage layer and an overflow drain pipe positioned at the bottom of the functional rainwater garden. The functional rainwater garden suitable for the interior of urban community grassy area in Shanghai provided by the invention can decrease the rainfall runoff peak value, purify water quality, supplement groundwater, reduce pressure on municipal water draining, improve microclimate and lift the livable degree of Shanghai.

The invention discloses a full-automatic rainwater harvesting irrigation apparatus and an operation method of the same and relates to the technical field of rainwater collection and utilization. The full-automatic rainwater harvesting irrigation apparatus comprises a solar energy photovoltaic power generation system, a rainwater collecting system, an irrigating system and an intelligent control system, wherein solar energy is directly converted into electricity through a solar energy panel by the solar energy photovoltaic power generation system, so energy can be provided for apparatus work; the rainwater collecting system collects rainwater according to an atmosphere raining condition; the irrigating system forms relative irrigation water-supply sources according to soil humidity and water amount required by the plants; and the intelligent control system receives signals of each sensor to control the other systems to work in a coordinate way. By the use of the method and equipment rainwater can be automatically collected and plants can be automatically irrigated; and the method and equipment have wide application range.

The invention discloses a rainwater garden system for community rainwater flow diversion, peak clipping and ecological purification. The rainwater garden system comprises a community roof rainwater flowing-through facility, a reverse U-shaped buffer flow division pipe, a green land rainwater garden facility and a rainwater well, wherein the community roof rainwater flowing-through facility is connected with the green land rainwater garden facility through two paths; one path is the direct connection with the green land rainwater garden facility, and the other path is the connection with the green land rainwater garden facility through the reverse U-shaped buffer flow division pipe; and the green land rainwater garden facility is also connected with the rainwater well. The reverse U-shaped buffer flow division pipe is used, and a water storage layer, a covering layer, a planting layer, a transition layer, a filling material layer, a water discharge layer and matched pipelines which are sequentially and downwards provided by the downward green land rainwater garden facility from the ground are used, so that the rainwater garden system has the effects of early-period rainwater processing, rainfall runoff flow division, peak clipping and purification regulation and control.

The invention discloses a vegetation bag ecological slope protection construction method and a vegetation bag rainwater treatment system. The vegetation bag ecological slope protection construction method comprises the following steps: (a) performing construction preparation; (b) measuring and lining; (c) excavating a foundation pit; (d) pouring concrete to obtain a slope foundation; (e) performing primary rainwater treatment system construction; (f) performing whole slope construction; (g) manufacturing beam grillages; (h) performing secondary rainwater treatment system construction; (i) stacking vegetation bags; (j) planting plants. According to a vegetation bag ecological slope protection system, plant growth substrates are fixed to the interiors of vegetation bags, so that a side slope is more stable and has erosion resistance by utilizing the anchoring effect of the roots of plants; the slope protection foundation which is erosion-resistant, firm and breathable, and suitable for the growth of the plants is formed by combining the characteristics of the beam grillages and the vegetation bags. Meanwhile, the rainwater treatment system is added, so that rainwater is stored in a rainy season and can be used for irrigating the plants in a dry season; on one hand, the slope protection pressure is relieved, and the water and soil loss is further prevented; on the other hand, the rainwater treatment system is favorable to the growth of the plants.

The invention provides a rainwater storage irrigation system for green belts under viaducts. The rainwater storage irrigation system comprises a water storage tank, a fresh rain primary filtration and separation device, a photovoltaic pump, an energy supply device, a spray head and a microcomputer centralized control box, wherein the fresh rain primary filtration and separation device comprises a filter screen, a base, a fresh rain separation water tank, a drain pipe and a first overflow pipe; the filter screen, the base and the fresh rain separation water tank are assembled in sequence from top to bottom; the first overflow pipe is communicated with the water storage tank; the photovoltaic pump is arranged in the water storage tank; the energy supply device is used for providing power for the photovoltaic pump, and comprises a solar photovoltaic plate and an energy storage inverter; the spray head is connected with the photovoltaic pump; and the microcomputer centralized control cabinet is in signal connection with the photovoltaic pump. The rainwater storage irrigation system provided by the invention is capable of removing massive harmful substances in the rainwater so as to prevent harmful substances from adversely influencing the growth of green plants, and sufficiently utilizing the rainwater resource and the solar energy so as to achieve energy conservation and environment protection functions; and moreover, the rainwater storage irrigation system is automatic in the process from primary filtration and separation to rainwater storage to spray irrigation and flood irrigation, so that the labor cost is reduced to the greatest extent and the work efficiency is improved.

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.

The invention discloses a greening irrigation system for sponge cities. The greening irrigation system comprises a water collecting device, a priming pump device, an aeration device and a greening device, wherein the water collecting device comprises a water collecting pool, a water collector and a purification integrated machine; the priming pump device comprises water feed pumps connected with pump water discharge pipes, the pump water discharge pipes are connected with the aeration device which is connected with a water storage tank, and the water storage tank is connected with water storage tank discharge pipes which are connected with the greening device. The construction method comprises steps as follows: (1), excavating foundation pits; (b), building the water collecting pool, an aeration tank and the water storage tank; (c), pretreating a foundation where ecological greening insert blocks are to be laid; (d), laying the ecological greening insert blocks; (e), planting green plants. According to the system, urban rainwater is collected and treated by the water collecting device, the collected rainwater is purified, put into secondary use and applied to irrigation of the greening device, so that not only is the waterlogging phenomenon of the road surface prevented effectively, but also water resource waste can be reduced through rainwater collection.

The invention discloses a comprehensive water managing method in an underground mining stage of open pit into underground mining. The method comprises the steps of building a flood intercepting trench (13) outside an underground mining moving band range line (10), mounting a lower shaft pump station (3) inside an underground mining horizontal transportation lane (7) at the bottom of the underground mining lift shaft (1), at least adding an upper shaft pump station (2) inside the underground mining horizontal transportation lane (7) at the upper portion of the underground mining lift shaft (1), establishing a drainage opening (5) at the bottom of an open pit slope, and building an overflow well (4) in the underground mining horizontal transportation lane (7) arranged with the lower shaft pump station (3). According to the comprehensive water managing method in the underground mining stage of open pit into underground mining, multi-pronged comprehensive measures of severing, prevention, drainage, dredging and storage are adopted, water disasters in the underground mining stage of the open pit into underground mining can be effectively solved, and the method can be applied widely to water managing in the underground mining stage of the open pit into underground mining in industries of ferrous, non-ferrous, coal, chemical engineering and the like.

The invention discloses a nanometer asphalt concrete urban road pavement structure based on a sponge city. The nanometer asphalt concrete urban road pavement structure is characterized in that a roadis separated into a water permeable area and a water non-permeable area along the transverse direction; the water permeable area is positioned between the water non-permeable area and a greening belt;curb is arranged between the water permeable area and the greening belt; the water non-permeable area comprises a soil base layer I, a gravel bedding layer I, a cement stabilized macadam base layer I, a lower surface layer I and an upper surface layer I from bottom to top under a motor vehicle lane; the water permeable area comprises a soil base layer II, a waterproof layer, a water storage layer, a gravel bedding layer II, a cement stabilized macadam base layer II, a lower surface layer II and an upper surface layer II from bottom to top under a non-motor vehicle lane; the water permeable area and the water non-permeable area are separated by an anti-seepage cement box body; an anti-seepage cement blocking plate is arranged under the curb and is used for isolating the water permeable area from the greening belt; a rainwater purifying system is arranged under the greening belt. The nanometer asphalt concrete urban road pavement structure has the advantages that the rainwater drainagespeed of the urban road is improved, the total rainwater drainage amount is increased, a large amount of rainwater is collected and reutilized, and the problems of water accumulation, vehicle track, particle falling and the like on the road pavement are relieved.

The invention provides a continuous coal cutter, wherein a cutting part comprises a cutting motor arranged on a cutting arm, a cutting decelerator and a cutting roller arranged on an output end of the cutting decelerator, a cooling system of the continuous coal cutter is an enclosed cooling system, the cutting part further comprises a chain drive cutting device, the chain drive cutting device comprises a drive sprocket wheel set, a driven sprocket wheel set and a cutter chain, the drive sprocket wheel set is arranged on the output end of the cutting decelerator, and is coaxial with the cutting roller, the driven sprocket set is arranged on the cutting arm, the cutter chain, the drive sprocket wheel set and the driven sprocket wheel set are cooperated by chain drive, and picks are continuously distributed on an external surface of the cutter chain. The chain drive cutting device is arranged on the external side of the output end of the cutting decelerator of the continuous coal cutter. Accordingly, continuous active cutting mode can be implemented on whole cutting width, cutting efficiency can be greatly raised, the chain drive cutting device is suitable for conditions of joint non-development coal or other mineral matters, and an application range is increased.

The invention relates to a community sewage integrated treatment and recycling system. The system comprises a grating, a regulating pond, a horizontal spiral self-cleaning fine particle removal device, an aerobic bioreaction pond water distribution room, an aerobic bioreaction pond, a settling pond, a self-aeration device, an artificial wetland, a rainwater storage pond, a filtering and disinfection device, a sewage storage pond and a system base. Solid suspension in aesthetic environment use water is up to standard through the grating, the regulating pond, the horizontal spiral self-cleaning fine particle removal device and the settling pond arranged in the system, so that the quality of sewage achieves the requirement of the aesthetic environment use water; the aerobic microbial reaction pond and the self-aeration device can achieve the standard of organic matters and nutritional substance indexes, the arranged artificial wetland not only can achieve the purpose of beautifying the community environment to cause aquatic plant and microorganism to continue to deeply treat sewage and rainwater, but also can play a buffering role in raining season to prevent the occurrence of community flood, and thus the occurrence of the community flood can be prevented.

The invention discloses a spiral type low elevation greenbelt capable of efficiently reducing runoff pollutants,belonging to the field of rainwater pollution control. The spiral type low elevation greenbelt capable of efficiently reducing runoff pollutants mainly comprises the spiral type low elevation greenbelt and a reverse cone-shaped water retaining filtering wall, wherein the spiral type low elevation greenbelt is composed of a spiral type plant zone and a low elevation greenbelt bottom plant zone; the water retaining filtering wall is composed of 2-3 layers of stone grains made from different materials from outside to inside. The reverse cone-shaped water retaining filtering wall in the spiral type low elevation greenbelt can preliminarily intercept and filter the runoff pollutants seeped from the periphery; in combination of the design for the shape and slope of the spiral type plant zone, under the effect of gravity, the rainwater and the upstream direct surface runoff water entering the low elevation greenbelt all spirally flow and infiltrate, so that the seepage time and the seepage path of the incoming water can be greatly prolonged and the capability of the low elevation greenbelt to reduce the upstream runoff pollutants can be promoted. According to the spiral type low elevation greenbelt, the hydraulic load caused by initial rainwater runoff pollution can be effectively relieved, the downstream water-draining pressure can be reduced, and the spiral type low elevation greenbelt has obvious social, environmental and economic benefits.

The invention discloses a permeable pavement based on a sponge city concept. The permeable pavement comprises traffic lanes and pedestrian ways. The traffic lanes comprise a surface layer, a base layer, a filter isolated layer, a permeable cushion and a subgrade from top to bottom in sequence; the pedestrian ways comprise permeable road surface bricks, a permeable cement concrete layer, a macadambase layer, a filter isolated layer and a base layer from top to bottom in sequence, boundaries between the traffic lanes and the pedestrian ways comprise curbs, permeable cement concrete faces and impermeable cement concrete faces from top to bottom in sequence, wherein the lower ends of the curbs extend to the base layer and the macadam base layer, the lower ends of the impermeable cement concrete faces are aligned with the lower end of the filter isolated layer. The permeable pavement based on sponge city concept has the advantages of that the water storage function of the permeable pavement structure is improved, the drainage pressure of municipal pipe network is relieved, occurrence of city water-logging is reduced and hydrological cycle of urban ecology is promoted.

The invention relates to a tractor synchronizer gear shifting oil cylinder, a gear shifting method and a tractor. The gear shifting oil cylinder comprises a piston rod, a cylinder body and a positioning piston, the positioning piston can be arranged in the cylinder body in an axial moving mode, and the piston rod is arranged on the cylinder body in a sealed and penetrating mode and can axially move relative to the cylinder body; the positioning piston is of a cylindrical structure, the piston rod is sleeved with the positioning piston, a piston is arranged in the middle of the piston rod, the peripheral side wall of the piston is in sealed connection with the inner side wall of the positioning piston and can axially move relative to the positioning piston, and a cavity of the cylinder body is divided into a first cavity and a second cavity by the piston; and a first oil port and a second oil port are formed in the cylinder body, the first oil port communicates with the first cavity, and the second oil port communicates with the second cavity. The tractor synchronizer gear shifting oil cylinder is high in response speed, high in reliability, compact in structure and low in cost. The piston rod of the gear shifting oil cylinder is arranged in the positioning piston in a sleeved mode, the piston arranged on the piston rod is matched with an inner cavity of the positioning piston, and gear shifting control can be achieved by utilizing the two cavities of the cylinder body to be matched with the two oil ports.

A sponge roof rainwater collecting and using system comprises a roof system, a pipeline system and a water storage system, wherein the pipeline system is connected with the roof system and used for conveying redundant rainwater on the roof system to the water storage system, the water storage system is used for storing the rainwater flowing from the pipeline system, and the pipeline system is connected with the water storage system and uses the rainwater in the water storage system for vegetation irrigation and toilet flushing. The sponge roof rainwater collecting and using system has the remarkable advantages that the roof system effectively collects the rainwater, a vegetation layer preliminarily collects and uses the rainwater and has the filtering effect on the rainwater, and the vegetation layer effectively retain part of the rainwater, reduces rainwater runoff amount, and then reduces the drainage pressure of a rainwater pipe network; coverage of the vegetation layer is increased, the green area can be increased, air is purified, and the indoor temperature of a penthouse can be effectively adjusted.

The invention discloses a flood water storage recycling system for a sponge city and a construction method thereof; the flood water storage recycling system comprises a flood storage pond, a flood recycling pond, a shunt and a purifying device; the flood storage pond is connected with an urban ditch through an open ditch, a trash filtering device is arranged on the open ditch, the bottom end of the flood storage pond is connected with the flood recycling pond through a first draining pipe; a water suction pump is arranged on the first draining pipe; a settling pond is arranged between the flood recycling pond and the urban ditch; the shunt is arranged in the settling pond, and both sides of the shunt are respectively connected with the urban ditch and the flood recycling pond through a water inlet pipe and a water outlet pipe. The construction method includes steps of measurement and sampling, flood storage pond construction, flood recycling pond construction, settling pond construction, purifying device construction, and test running of the flood storage recycling system. The flood water storage recycling system can well prevent flood and effectively recycle flood, thus the system and method improve the utilization rate of water resource, reduce the flood influence on city and avoid urban inland inundation.

The invention provides coal mining equipment and a cooling system of the coal mining equipment. The coal mining equipment comprises a cooling machine set arranged on a coal mining equipment body, a cooling liquid container and a cooled device set. The cooled device set comprises a plurality of cooled parts which are connected in series and/or in parallel through cooling liquid pipelines, the cooled device set, the cooling machine set and the cooling liquid container are connected in series through the cooling liquid pipelines to form a circulation loop, and split-flow valves are arranged on the pipelines among the cooling machine set and the cooled parts. The cooling system of the coal mining equipment adopts a closed circulation system, external influences on cooling liquid are small, therefore, a cooling effect is good, in addition, all the parts can further adjust flow of the cooling liquid through the split-flow valves to adjust cooling temperature, cooling efficiency is improved, and the failure rate of the equipment is lowered. Furthermore, the cooling liquid does not need to be discharged outwards, water discharging pressure of an operational working face is reduced, less hydration of the working surface is achieved, and therefore operational efficiency can be improved.

The invention relates to the technical field of anti-ponding roadbeds, in particular to an anti-ponding reinforced roadbed pavement. The technical problems that the drainage pressure of a cable channel is too large, rainwater cannot be drained in time, the water content of a road surface is high, and rainwater resources cannot be well utilized are solved. In order to solve the technical problems,the reinforced roadbed pavement capable of preventing water accumulation comprises a roadbed structure, drainage structures are fixedly connected to the two sides of the roadbed structure, and permeable pipes are inserted into the opposite sides of the two drainage structures in a penetrating mode; and the sides, departing frame each other, of the two drainage structures are fixedly connected withdrainage pipes communicated with the interiors of the two drainage structure. According to the invention, the roadbed structure is good in overall water permeability, the water guide and seepage functions of the roadbed can be fully played, and water flow can be rapidly guided into the drainage grooves through the water permeable pipes and the drainage holes under the guidance of the flow guide slope; therefore, the drainage groove can effectively intercept and slowly drain rainwater, the drainage pressure of the rainwater pipe network is effectively reduced, and the pavement drainage performance is enhanced.

The invention discloses an intelligent self-control type intercepting well. The intelligent self-control type intercepting well comprises a rainwater inlet pipe, a flow dividing well chamber, a rainwater outlet pipe, a flow abandoning pipe, a control cabinet, an electric valve, a valve well chamber and a rain gauge, wherein the flow dividing well chamber communicates with the rainwater inlet pipe,the rainwater outlet pipe and the flow abandoning pipe respectively; the rainwater inlet pipe is used for receiving rainwater in an upstream water collecting area of an area; the rainwater outlet pipe is used for communicating with a downstream rainwater pipe network; the flow abandoning pipe is used for being connected to a sewage inspection well; the electric valve is arranged on the flow abandoning pipe and is arranged in the valve well chamber; and the control cabinet is connected with the electric valve and the rain gauge respectively. Sewage in sunny days can be intercepted and drainedinto the sewage pipe network, a large amount of rainwater can be prevented from being drained into the sewage pipe network in rainy days, drainage pressure of the downstream sewage pipe network is relieved, and the load and treatment cost of a downstream sewage treatment plant are reduced.

The invention relates to the technical field of landscape architecture, in particular to a mountain area highway subgrade. According to the technical scheme, the mountain area highway subgrade comprises a cut subgrade and a fill subgrade, a main drainage ditch is constructed at the joint of the cut subgrade and a mountain body, a plurality of gabion mesh cages are arranged at the top end of the cut subgrade, the gabion mesh cages are arranged form the inner of the main drainage ditch to the cut subgrade, a concrete bridge is longitudinally constructed on the side, directly opposite to the fillsubgrade, of the top end of the cut subgrade, the concrete bridge is higher than the top surfaces of the gabion mesh cages and the fill subgrade, a water-proof layer is paved on the top surfaces of the gabion mesh cages, the top surface of the fill subgrade, and the top surface of the concrete bridge and the top surface of the water-proof layer are used for paving a pavement structure layer. According to the mountain area highway subgrade, the structural strength of the subgrade is ensured, meanwhile the effective drainage section area of the drainage ditch is enlarged, the characteristics ofhigh drainage capacity and reliable drainage are achieved, and the subgrade safety can be guaranteed for a long time.