357results about How to "Reduce the chance of clogging" patented technology

The invention discloses a sewage treatment system for combined tidal flow artificial wetland, belonging to the technical field of sewage treatment. The system comprises a non-powered automatic water charging device (9), an artificial wetland bed and a non-powered automatic water discharging device (2), wherein the non-powered automatic water charging device (9) is positioned above the artificial wetland bed and is communicated with the artificial wetland bed through a siphon water inlet pipe (10); the artificial wetland bed is provided with a water discharging layer (5), a denitrification reinforcing layer (7), a reinforcing reaeration layer (8) and an aerobic ecological sand layer (17) from the bottom up; and the non power automatic water discharging device (2) and the artificial wetlandbed form a connector and are connected with each other through the bottom water discharging layer (5). The invention further discloses a sewage treatment method using the system, comprising two stepsof waterflooding absorption and emptying reaeration. Compared with the traditional combined wetland, the sewage treatment system for the combined tidal flow artificial wetland increases daily sewage treatment amount and reduces construction cost.

The invention provides a rotary wall type anti-jamming material bin which can effectively prevent material from being jammed in a discharging-bin-part during the discharging process of a grain material bin. The rotary wall type anti-jamming material bin is mainly characterized in that the original integrated bin body of the discharging-bin-part of the material bin is converted into a rotary bin body; and a relative movement system is formed by arc-breaking jam-removing vanes fixed in the wall of the rotary bin body and the rotary bin body, and then materials cannot form stable arc with the bin wall on the inner wall of the rotary bin body to destroy and break down the basic factor of jamming in time so as to better reach the aim of preventing material being jammed and dramatically enhance anti-jamming effect.

The present invention provides a conductive paste characterized by a crystal-based corrosion binder being combined with a glass frit and mixed with a metallic powder and an organic carrier. Methods for preparing each components of the conductive paste are disclosed including several embodiments of prepare Pb—Te—O-based crystal corrosion binder characterized by melting temperatures in a range of 440° C. to 760° C. and substantially free of any glass softening transition upon increasing temperature. Method for preparing the conductive paste includes mixture of the components and a grinding process to ensure all particle sizes in a range of 0.1 to 5.0 microns. Method of applying the conductive paste for the formation of a front electrode of a semiconductor device is presented to illustrate the effectiveness of the crystal-based corrosion binder in transforming the conductive paste to a metallic electrode with good ohmic contact with semiconductor surface.

A feeding system for building contour forming comprises a moving supporting platform, an intermediate bunker and a three-dimensional building printing spraying head arranged on the moving supporting platform. The intermediate bunker is arranged on the moving supporting platform and is connected with the three-dimensional building printing spraying head through a feeding pipeline; the intermediate bunker can connect with a traditional pump truck for feeding; and stirred concrete raw materials on the ground are conveyed to the intermediate bunker through a pump machine, and then the materials are supplied to the three-dimensional building printing spraying head through the intermediate bunker. The feeding pipeline just needs to be arranged between the intermediate bunker and the three-dimensional building printing spraying head, the length of the feeding pipeline can be reduced, and the probability of feeding pipeline blocking is reduced. When raw materials with different granularity are conveyed, due to buffering through the intermediate bunker, the raw materials can be selected in wider ranges to be used, and the efficiency of material supplying to the three-dimensional building printing spraying head can be improved.

The invention belongs to the technical field of environmental engineering, and relates to a subsurface flow constructed wetland combination system and the application of the system. The constructed wetland combination system comprises three wetland units (16, 17 and 18), wherein the three wetland units respectively comprise wetland unit frames (13, 14 and 15), water distribution pipes (1, 3 and 5), water collecting pipes (2, 4 and 6), a water inlet pipe (19), connecting pipes (20 and 21), a water outlet valve (7), a vertical water outlet pipe (8) and a siphon (9), wherein the wetland units (16, 17 and 18) are connected with one another by the water collecting pipes (2, 4 and 6) or the water distribution pipes (1, 3 and 5), the wetland units (16, 17 and 18) are internally filled with substrates (10, 11 and 12), and the three wetland units are vertically distributed in a gradually-falling shape. The system and the application of the system provided by the invention have the advantages of being high in the adaptability to terrain, better in nitrogen and phosphorus removal effect for a water body, hard to block, convenient in operation, maintenance and management, low in project capital construction cost and running cost and the like.

The invention discloses a waste heat generating equipment system and a waste heat generating process. The system comprises a ceramic fiber dust collector (2), a rapid heat conducting heat-pipe waste heat boiler (3), a rapid heat conducting heating device (4), a steam replenishing and condensing steam turbine (6), a condenser (8), a condensing water pump (9) and a vacuum deaerator (10), wherein ceramic fiber dust collector (2) is arranged at a waste heat outlet end; the rapid heat conducting heat-pipe waste heat boiler (3) bears a steam preparing device for power generation; the rapid heat conducting heating device (4) is arranged on the smoke inlet of a boiler; medium and high-pressure main steam generated by a rapid heat conducting heat-pipe waste heat boiler is mixed and enters the steam replenishing and condensing steam turbine (6) through a pipeline; low-pressure steam enters the steam replenishing and condensing steam turbine (6) through a steam replenishing pipeline; waste steam on the tail part of the steam turbine enters the condenser (8); condensed water enters the vacuum deaerator (10) through the condensing water pump (9) and a pipeline; water from which oxygen is removed in the deaerator enters the heat-pipe waste heat boiler (3) through a water supply pump of the boiler; and low-temperature smoke discharged from the back end of the boiler is delivered into the rapid heat conducting heating device (4). The waste heat utilization ratio of the integrated system is enhanced by over 60 percent on average, so unit energy consumption of an enterprise is greatly lowered, the problem of unstable running of the system due to dust blocking of the boiler and wearing of a heat exchange tube in a medium and low temperature waste heat generating system is solved and comprehensive generating efficiency is enhanced by over 30 percent.

The invention belongs to the technical field of sewage treatment and specifically relates to a method for enhanced nitrogen removal of a tidal flow-horizontal subsurface flow hybrid constructed wetland and a system thereof. The system orderly comprises a non-powered automatic water intake device (8), a tidal-flow constructed wetland bed, a non-powered automatic water drainage device (2) and a horizontal subsurface-flow constructed wetland bed. The tidal-flow constructed wetland which is high in ammonia nitrogen oxidation effect and the horizontal subsurface-flow constructed wetland which is excellent in nitrate reduction capability are rationally combined into one system by thoroughly utilizing the characteristics of the aerobic environment of the former and the anaerobic environment of the latter; therefore, conditions are created for thorough nitration / denitrification; and simultaneously, a horizontal subsurface-flow wetland slow-release carbon source enhanced region (15) and a backflow well (19) are arranged in the horizontal subsurface-flow wetland bed, so that enhanced removal of total nitrogen in the sewage can be realized and secondary pollution on the carbon source is avoided at the same time.

The invention discloses a continuous crystallization process for monopotassium phosphate. The continuous crystallization process comprises the following specific steps of: introducing a feed liquid to be crystallized into a first-stage continuous flash crystallizer so as to be separated into a primary clear liquid, primary crystal mush and secondary steam; discharging the primary crystal mush from the first-stage continuous flash crystallizer and feeding the primary crystal mush into a second-stage continuous cooling crystallizer, wherein the second-stage continuous cooling crystallizer is composed of an Oslo crystallizer and an external cooler; separating the primary crystal mush into secondary crystal mush and a secondary clear liquid in the Oslo crystallizer; discharging the secondary crystal mush from the Oslo crystallizer, feeding the secondary crystal mush into a thickener and separating the secondary crystal mush into triple clear liquid and triple crystal mush; discharging the triple crystal mush from the thickener, feeding the triple crystal mush into a centrifugal machine, and separating the triple crystal mush into solid monopotassium phosphate and a centrifugal liquid; and discharging the solid monopotassium phosphate from the centrifugal machine. The continuous crystallization process is stable in operation, low in energy consumption and low in labor intensity; and by using the continuous crystallization process, the operation stability and the product quality are greatly improved, the on-site operation environment is improved, and the production cost of the monopotassium phosphate is reduced. A mating device for the process is small in floor area and high in capacity.

The invention relates to a deblocking method for coal bed gas well fracturing and powder blocking in the field of coal bed gas exploitation. The method includes adopting an air compressor to slowly inject compressed air from the ground into a shaft of a blocked coal bed gas well to form certain high pressure in the shaft and a coal bed, then opening a well opening discharge valve to quickly release high pressure gas in the shaft, so that blocking coal powder and sand in a fracturing crack will be loosened and move to the shaft with the compressed air and then return to the ground through a delocking pipe column. The process is repeated for multiple rounds to eliminate the well fracturing and coal powder blocking phenomenon, and the gas production will be restored. More importantly, the coal bed is not damaged, and high application value is achieved.

The invention relates to a marine culture water compound cyclic purification system which comprises an initial precipitation unit, a contact oxidation unit, a shellfish ecological pond unit and a plug flow type constructed wetland unit. The marine culture effluent enters into the initial precipitation unit to precipitate and then a mass of suspended solids are removed; ammoniation and nitration reactions are realized by the initial precipitation unit through microbial action; the effluent of the contact oxidation unit is conditioned by the shellfish ecological pond unit; the matrixes filled in the plug flow type constructed wetland unit is capable of absorbing and gathering the nitrogen and phosphorus pollutants in the water; and after the cyclic treatment, the water flows back to a marine culture pond. According to the seawater quality treatment system, the biological treatment technology, the ecological restoration technology and the ecological treatment technology are integrated and the advantages of the three technologies can be fully exploited, so that the effect of compound purification is achieved and the maximization of the comprehensive benefit is promoted.

The invention provides a heavy oil hydrogenation demetalization catalyst as well as a preparation method and application of the heavy oil hydrogenation demetalization catalyst. The preparation method comprises the following steps: adding a physical pore-enlarging agent into a metal salt solution containing Mo or W so as to obtain a wet powder pore-enlarging agent; mixing aluminum oxide dry glue powder with the wet powder pore-enlarging agent so as to obtain an aluminum oxide dry glue powder material 1; adding the chemical pore-enlarging agent and a phosphorous compound containing solution to the aluminum oxide dry glue powder so as to obtain an aluminum oxide dry glue powder material 2; mixing the aluminum oxide dry glue powder material 1 with the aluminum oxide dry glue powder material 2 so as to obtain wet materials; drying the wet materials, and roasting so as to obtain an aluminum oxide carrier; and dipping the aluminum oxide carrier into a metal salt solution containing one of Mo and W and / or one of Co and Ni, drying, and roasting, thereby obtaining the heavy oil hydrogenation demetalization catalyst. The invention also provides the heavy oil hydrogenation demetalization catalyst. The catalyst provided by the invention not only has favorable hydrogenation demetalization activity, but also has favorable metal and carbon deposit accommodating performance.

The invention discloses a multi-level refined intelligent denitration system based on big data and a firefly algorithm. The system comprises a coal economizer, an SCR denitration device, an air preheater, a dust removal device, a desulfurization device, a tail gas emission device, a boiler unit, an ammonia spraying main pipe assembly, a denitration inlet flow speed and NOx field distribution monitoring system, a denitration outlet NOx / NH3 field distribution monitoring system, a catalyst area NOx field distribution monitoring system and a catalyst area NOx / NH3 non-uniformity analysis system. According to the system disclosed in the invention, through big data and a particle swarm optimization algorithm, an ammonia spraying branch pipe real-time adjustment system is established, and dual control of partition control and ammonia spraying total amount optimization is realized; the flow field matching is accurate, the variable working condition adaptability is high, the quality of ammonia spraying control can be effectively improved, and the SCR performance can meet the NOx ultralow emission requirement; the comprehensive effects of saving the ammonia spraying amount, reducing the NOx emission concentration, reducing the air pre-heater blockage probability and reducing tail equipment dust accumulation are achieved.

The invention discloses a biomimetic liquid distributor and a manufacturing method thereof. The biomimetic liquid distributor comprises a distributor body. A liquid inlet pipe is arranged in the center of the side wall of the distributor body. Liquid distribution holes are formed in a distribution tray of the distributor body. Each liquid distribution hole is of an inverted cone structure simulating the visceral foramen of an earthworm. Convex bosses are arranged on the distribution tray of the distributor body and are of a structure simulating a dung beetle body. The circumference of each convex boss is tangent to the center connection line of the liquid distribution holes in the two sides of the convex boss. The manufacturing method comprises the following steps that the biomimetic biological prototypes are captured, information of the biomimetic portions of the abdomen of the dung beetle and the visceral foramen of the earthworm is collected, and the obtained information is guided into a computer. According to the biomimetic liquid distributor and the manufacturing method thereof, excellent initial distribution uniformity is achieved, the medium transfer efficiency can be greatly improved, normal operation of the liquid distributor is not affected, and the biomimetic liquid distributor is simple in structure, convenient to manufacture and low in cost.

The invention relates to a cement roller press with a smooth feeding function and a crushing roller cleaning function. The cement roller press comprises a main body, a feeding hopper, a mounting frame, two crushing rollers and two power devices, and further comprises an extrusion mechanism and two cleaning mechanisms, wherein each cleaning mechanism comprises a supporting sleeve, a lifting rod, acleaning brush, a supporting wheel, a spring, a first knocking block and a second knocking block; and the extrusion mechanism comprises a support, a screw rod, a fixed bearing, a ball screw bearing, apressing disc, a first connecting rod, two driving assemblies, two supporting assemblies and at least two crushing teeth. According to the cement roller press with the smooth feeding function and thecrushing roller cleaning function, raw materials can be extruded through the extrusion mechanism, so that the probability of blockage of the feeding hopper is reduced, meanwhile, the grabbing effectof the crushing rollers on the raw materials is improved, and the crushing effect of the roller press on the raw materials is improved; and the raw materials adhered to the crushing rollers can be scraped off through the cleaning mechanisms, so that the practicability of the roller press is improved.

The invention discloses an intelligent water distribution device and a remote automatic measurement, regulation and water distribution system thereof. The water distribution device comprises an upper joint, a lower joint and a housing body, wherein the upper joint and the lower joint are arranged at two ends of the housing body separately; a water inlet hole and a water outlet hole are formed in the upper joint and the lower joint separately; meanwhile, the upper joint is communicated with the lower joint through an overflow channel; the overflow channel is located in the housing body; a water outlet channel, a control circuit assembly, a wireless communication assembly and a power supply assembly are also arranged in the housing body; the water outlet channel is communicated with the water inlet hole and the water outlet hole; the water inlet hole and the water outlet hole are provided with a front pressure sensor of a nozzle and a rear pressure sensor of the nozzle separately; and an automatic adjustable water nozzle is arranged between the front pressure sensor of the nozzle and the rear pressure sensor of the nozzle. The opening of the water nozzle can be automatically adjusted according to the change of formation pressure effectively, so that the water injection rate can be relatively stabilized in the designed injection allocation rate and the change of the water injection rate caused by the formation pressure is effectively solved.

The invention relates to an efficient centrifugal water extractor with a cleaning function. The water extractor comprises a main body, a water extracting bucket, and a second motor; the water extracting bucket is arranged in the main body, the second motor is arranged on the inner wall of the bottom of the main body, the second motor is connected with the water extracting bucket, a cleaning mechanism and an extruding mechanism are further included, the cleaning mechanism comprises a sliding rod, a lifting block, a water pump, a driving assembly, a nozzle, a first pipeline, a second pipeline, avalve and two mounting plates, the extruding mechanism comprises a ventilation pipe, an air pump, and at least two air bags, and the driving assembly comprises a first motor and a screw. According tothe efficient centrifugal water extractor with the cleaning function, through the cleaning mechanism, the water extracting bucket can be cleaned, the probability that the water extracting bucket is blocked is reduced, the water extracting property of the water extracting bucket can be improved, through the extruding mechanism, cloth in the water extracting bucket can be extruded, the cloth waterextracting speed can be improved, and the work efficiency of the centrifugal water extractor can be improved.

The invention relates to the field of metallurgical aluminum preparation and discloses a method and a device for removing organic matters in aluminum oxide mother liquor with assistance of an aluminumash sintering process. The method is characterized by comprising the following steps: guiding raw material slurry into a rotary kiln through a raw material pipe; guiding natural gas and air into therotary kiln through a fuel pipe and an air pipe respectively for a sintering reaction; guiding clinker obtained by the sintering reaction into a cooling machine through a cooling pipe; finally, feeding the clinker cooled by the cooling machine into a ball mill through a conveyor; adding aluminum oxide evaporation mother liquor and sintering again to finish removal of organic matters in the aluminum oxide mother liquor; thus, inert aluminum ash in the aluminum ash can be safely and effectively treated, total recovery rate of aluminum in the aluminum ash reaches 95% or more, overall recovery rate of organic matters is 85% or more, and the problems of high consumption and cost of additives, difficulty in operation and implementation, difficulty in regeneration and low recovery efficiency of existing methods such as crystallization, oxidation, roasting, ion exchange and causticization for removing organic matters in aluminum oxide are solved.

The invention discloses an agricultural machinery equipment integrated with simultaneous precision sowing and fertilization, shallow-buried drip irrigation pipe laying and mulching and a method. The agricultural machinery equipment comprises an integrated chassis, a system power wheel is mounted on the integrated chassis, a gear is fixedly connected to the axle of the system power wheel, the gearis meshed with a reverse gear, and thereby power is respectively transmitted to a shallow-buried drip irrigation pipe laying system, an air suction type precision sowing system, a quantitative and positioned seed and fertilizer spiral conveying system and a mulching film covering and earthing system; and a control system is respectively connected to the shallow-buried drip irrigation pipe laying system, the air suction type precision sowing system, the quantitative and positioned seed and fertilizer spiral conveying system and the mulching film covering and earthing system, and is used for controlling the operation of each system. The agricultural machine disclosed by the application can simultaneously carry out four-row sowing and two-row pipe laying operations, and can be adapted to therequirement of row spacings and plant spacings of different crops and the requirement of fertilization pipe laying positions according to actual requirements of agricultural production. Intelligentized high-efficient sowing, fertilization, irrigation and mulching are realized, and the adaptability of the machine and the working efficiency of agricultural cultivation are greatly increased.

The invention discloses a vehicle travelling state broadcasting method and apparatus, and a vehicle-mounted terminal. The vehicle travelling state broadcasting method is applied to Internet of Vehicles vehicle state broadcasting, and the method comprises the following steps: judging whether the travelling state of a vehicle is stable; if it is judged that the travelling state of the vehicle is notstable, performing vehicle information broadcasting at a first preset broadcasting period T; if it is judged that the travelling state of the vehicle is stable, continuing to judge whether the vehicle is in a slow travelling state; when it is judged that the vehicle is in the slow travelling state, judging whether the vehicle is continuously in the slow travelling state according to a preset judgment period, and if so, gradually prolonging the broadcasting period until to a first broadcasting period upper limit T1max, and if it is judged that the travelling state of the vehicle is not stableat the preset judgment period, performing vehicle information broadcasting at the first preset broadcasting period T, wherein T1max is greater than T1. The broadcasting period can be adjusted in timewhen the travelling state of the vehicle changes, thereby reducing the communication channel load, reducing the probability of channel blockage, reducing the packet loss rate and shortening the information delay.

The invention discloses intelligent agricultural equipment integrating precise simultaneous seed and fertilizer application and shallow buried drip irrigation pipe laying functions. The problems that in the prior art, drip irrigation belt laying is poor in stability, and drip irrigation belts cannot be shorn automatically are solved. The intelligent agricultural equipment is characterized by integrally completing sowing, fertilizing and drip irrigation belt laying, and drip irrigation belt laying is stable. According to the technical scheme, the equipment comprises an air-aspiration type precise sowing system arranged on a rack, a spiral seed and fertilizer quantitative conveying system arranged at the position, at one side of the air-aspiration type precise sowing system, of the rack and a shallow buried drip irrigation pipe laying system, a belt pressing wheel in the shallow buried drip irrigation pipe laying system is arranged below the rack, the shallow buried drip irrigation pipe laying system comprises a drip irrigation belt roll frame fixed to the rack, a reverse wheel, two drip irrigation belt extruding-out rolls opposite in rotating direction, a rotating drip irrigation belt shearing device, a middle wheel and the belt pressing wheel are sequentially arranged on the lower portion of the drip irrigation belt roll frame from one direction to the other direction, and a drip irrigation belt passes through the reverse wheel, the drip irrigation belt extruding-out rolls, the rotating drip irrigation belt shearing device and the middle wheel to reach the belt pressing wheel.

The invention relates to the technical field of agricultural machinery, in particular to an automatic fertilizing device for farmland soil improvement. The automatic fertilizing device for farmland soil improvement comprises a mounting plate, a connecting structure through which an automatic fertilizing device is connected with an external driving machine, a rotary tillage mechanism connected with the mounting plate and used for loosening soil, a fertilizer storage mechanism connected with the mounting plate, a discharging mechanism connected with the mounting plate, and used for unidirectionally and uniformly discharging fertilizers in the fertilizer storage mechanism to a fertilizing pipe mechanism, the fertilizing pipe mechanism used for spreading the fertilizers, and an air gun mechanism connected with the mounting plate, wherein an air outlet of the air gun mechanism is communicated with the fertilizing pipe mechanism, and compressed air is regularly or controllably introduced into the fertilizing pipe mechanism through the air gun mechanism. The automatic fertilizing device for farmland soil improvement provided by the invention has the advantages of high fertilization efficiency, uniform fertilization and good fertilization effect.

The invention discloses a positive-negative integrated conveying system device of a multifunctional pump, comprising a multifunctional bin pump, a negative pressure ash loading device of the multifunctional pump and a positive pressure conveying device of the multifunctional pump. In the invention, a set of bin pumps of the conveying system device can be connected with a plurality of ash hoppers without an intermediate ash silo; and ash is conveyed to a terminal ash silo at one step, a large amount of materials and equipment can be saved and the discharge speed of the bin pump can be adjusted, thereby the conveying system device is not easy to block the pneumatic conveying system device of the pipe.

The invention discloses one filteration- deposition combined perfusion system used for animal cell perfusion culture. It comprises filtering- deposition- perfusion column, peristaltic pump, automatic controller, tri- way pipeline and pipe clamp; filtering- deposition- perfusion column is connected with peristaltic pump through tri- way pipeline, the rotation of peristaltic pump is controlled by automatic controller, pipe clamp is installed on pipe between filtering- deposition- perfusion column and peristaltic pump. The invention is characterized by simple structure, low cost, high collecting efficiency, long life length and wide application on micro- carrier or cluster animal cell perfusion culture.

The invention relates to a water-saving shower head. The shower head comprises a shower head body, a water delivery pipe, a valve, a water inlet, a base and at least two water outlets, and further comprises a water-saving mechanism and a cleaning mechanism; the water-saving mechanism comprises an on-off assembly and a triggering assembly, wherein the on-off assembly comprises a water inlet pipe, abaffle, a sealing block, a moving plate, a hole and two first springs; the cleaning mechanism comprises a driving assembly, a connecting rod, a lifting rod, two supporting rods, two lifting sleeves and at least two cleaning rods. According to the water-saving shower head, through the water-saving mechanism, when people go out of the range of a supporting seat, the shower head body can automatically stop water spraying, so that the water-saving effect of the shower head is improved, and the practicability of the shower head is improved; through the cleaning mechanism, the water scale inside the water outlets can be cleaned up, so that the probability that the water outlets are blocked is reduced, the water spraying effect of the shower head is improved, and therefore, the practicability ofthe shower head is further improved.

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment device and a sewage treatment method for a self-cleaning type micro-aeration vertical baffled wetland. The invention discloses the sewage treatment device for the self-cleaning type micro-aeration vertical baffled wetland. The sewage treatment device consists of a water distribution region, a tank body and a water collecting region; to-be-treated sewage flows into the water distribution region through a water inlet tube, and then flows from the distribution region into the tank body by taking an overflow; outlet water treated by the tank body flows into the water collecting region by taking an overflow; and the tank body is formed by connecting a plurality of stages of vertical baffled wetlands with different treatment functions in series, in a water flow direction, namely an anaerobic wetland, a carbon oxidization wetland and a short-cut nitrification-denitrification wetland. The invention further provides a sewage treatment method by adopting the device. According to the device provided by the invention, the tank body is divided into an anaerobic section, an aerobic section and a micro-aerobic section in the water flow direction, and efficient removal of carbon pollutants and nitrogen pollutants can be realized; and the problems that a conventional constructed wetland is too low in dissolved oxygen, relatively great in land area, easy to block by stuffing and difficult to clean after being blocked are solved.

The invention discloses a train network control system based on a TCN (Train Communication Network). The system comprises a first CCU (Central Control Unit), a WTB (Wire Train Bus) and an MVB (Multifunction Vehicle Bus), wherein the MVB comprises a first-grade MVB and a second-grade MVB which are independent of each other; the WTB is in communication connection with the first CCU through a gateway; the first CCU is in communication connection with a first-class control sub-system of a train through the first-grade MVB, and in communication connection with a second-class control sub-system through the second-grade MVB; the first-class control sub-system is a control system of which a required value of a communication bandwidth is greater than a preset value on the train; and the second-class control sub-system is a control system of which a required value of the communication bandwidth is smaller than or equal to the preset value. Through adoption of the train network control system, the probability of data jamming is lowered; the occurrence of a data jamming phenomenon is avoided as much as possible; and the security and reliability of the system are enhanced.

The invention relates to a laminated self-adaptive drip irrigation emitter and a use method thereof; the laminated self-adaptive drip irrigation emitter is characterized by comprising a emitter shell body; both ends of the emitter shell body are respectively provided with a butting joint; two groups of arc tooth-shaped energy dissipation runners are arranged on the outer wall of the emitter shell body; a structure area and a buffer area are arranged between the two groups of arc tooth-shaped energy dissipation runners; positions on the two groups of arc tooth-shaped energy dissipation runners which are close to the structure area are provided with wall surface water inlets which are communicated with the inside of the emitter shell body, and the positions of the two groups of arc tooth-shaped energy dissipation runners which are close to the buffer area are provided with outlets which are communicated with the buffer area; both ends of the outer wall of the emitter shell body are respectively provided with a circle of water collection runner which is communicated with the buffer area; a capillary is wrapped outside the emitter shell body, and water outlets are arranged on one or two ends of the water collection runner on the capillary; positions in the emitter shell body which are close to butting joints on both ends are respectively provided with a water inlet and outlet laminate; two energy dissipation laminates are arranged between the two water inlet and outlet laminates; an elastic diaphragm is arranged between the two energy dissipation laminates; and the wall surface water inlets are arranged between the two energy dissipation laminates.

The invention discloses an equipotential head suspension micropressure drip irrigation equipment, comprising a main tube, a branch tube, a hair canal, a suspension micro path emitter, a water tank and a main tube water pressure regulating mechanism. The main tube water pressure regulating mechanism comprises a water regulating tank and a constant water level tank. A one-way inlet valve is arranged between the water regulating tank and the constant water level tank. A water supply tank is arranged in the water regulating tank. The water tank is set at the upper end of the water regulating tank and connected with the water regulating tank by a water supply switch to make the water level of the constant water level tank constant. The water outlet of the constant water level tank is connected with the water inlet of the main tube. The water inlet of the hair canal is connected with the water outlet of the branch tube. The hair canal is hung with hoses with different length in the perpendicular direction. The micro path emitter is arranged on the hose. Compared with the prior art, the device has simple structure, low cost, energy-saving, convenient application and maintenance, constant outflow of the micro path emitters, good irrigation effect and is suitable for applying in wide countryside.

The invention relates to a municipal drainage system. The municipal drainage system comprises a municipal pipeline for drainage, and further comprises a rainwater collecting tank built below a lawn, wherein the rainwater collecting tank is formed by enclosing concrete partition walls around the rainwater collecting tank; an opening is formed in the upper portion of the rainwater collecting tank, and a plurality of groups of cross beams and longitudinal beams which are used for supporting are arranged at the opening end of the rainwater collecting tank; a filtering layer, a soil layer and a planting layer are arranged above the cross beams and the longitudinal beams; a drainage pipeline which communicates with the upstream of the municipal pipeline is arranged below one side of the rainwater collecting tank; a valve for opening and closing the drainage pipeline is arranged in the rainwater collecting tank; and a driving piece for opening and closing the valve according to the water level is further arranged in the rainwater collecting tank. The municipal drainage system has effects of collecting rainwater for flushing the municipal pipeline, reducing sediment in the municipal pipeline, thus reducing pollution discharge treatment work of municipal workers and effectively saving the cost.

The invention discloses a QoE-based traffic scheduling big data system and method. The system comprises an infrared sensor, a crossing camera terminal device, a data transmission network, a big data processing core platform, a traffic control center and a traffic signal terminal. Data is acquired through the infrared sensor and the crossing camera terminal device, then the data is transmitted to the big data processing core platform through the data transmission network, a background gives an optimized solution scheme, then the traffic control center executes the scheme, and thus real-time scheduling of the traffic signal terminal is realized. Through the QoE-based traffic scheduling big data system and method, traffic data of each area of a city is monitored in real time, the big data processing core platform performs analyzing processing and data mining, the data of different areas, different roads, different time periods, different motor vehicles, pedestrians and the like are taken into integrated consideration, the optimized scheduling scheme is calculated, through real-time control, area coordination, stereo scheduling, intelligent recommendation and the like of traffic signals, the road pass rate and the area coordination capability are improved, congestion is mitigated, and the area scheduling quality and the QoE are improved.