213 results about "Tube drainage" patented technology

The utility model relates to a membrane filtration system which comprises a water collecting pipeline and a membrane filtration device installed on the water collecting pipeline, the membrane filtration device is provided with a membrane element, and the water collecting pipeline comprises a water production header pipe, a water inlet header pipe and a water drainage header pipe which are arrayed in the same plane in the horizontal direction and are provided with closed upper ends and open lower ends; the water production manifolds are symmetrically communicated with the two sides of the water production header pipe and are rigidly connected with the water inlet header pipe and the water drainage header pipe respectively; the water inlet manifolds are symmetrically communicated with the two sides of the water inlet header pipe and are rigidly connected with the water production header pipe and the water drainage header pipe respectively; the drainage manifolds are symmetrically communicated with the two sides of the drainage main pipe and are rigidly connected with the water inlet main pipe and the water production main pipe respectively; a penetrating fluid outlet communicated with the water producing manifold, a pretreatment liquid inlet communicated with the water inlet manifold and a concentrated liquid outlet communicated with the water discharging manifold are formed in the membrane element. The manifolds and the membrane elements are installed in a simplified and matched mode, the manifolds and the header pipe are supported by each other through rigid connection, and the auxiliary fixing structure is simplified.

The utility model relates to an undisturbed deep-scale drilling sampling device for a seabed sandy soil settled layer, which comprises a floral tube and a ship deck, and a sampling structure is arranged at the floral tube; the sampling structure comprises a rod-shaped heavy hammer arranged in the floral tube, a guide is arranged on the outer surface of a rod-shaped heavy hammer rod and fixedly installed on the inner wall of the floral tube through a fixing screw, a tube drainage hole is further formed in the side wall of the floral tube, and a sampling partition is installed on the inner wall of the middle end of the floral tube. According to the utility model, the rod-shaped heavy hammer performs drainage downward movement in the floral tube, strikes the sampling tube, repeatedly lowers the sampling equipment at the same hole site and continues to sample at the original hole site, in order to reduce sample disturbance or sample without disturbance as much as possible, the rod-shaped heavy hammer strikes 1-2 during sampling each time, the sampling length is controlled to be about 1m, and the sampling depth can reach 40m after the operation is repeated, so that the sampling efficiency is greatly improved. The device is extremely small in disturbance and large in sampling depth, and is an edge tool for marine sedimentology research.

The invention relates to the field of sewage and wastewater treatment and discharge, in particular to a wastewater treatment and discharge device which comprises a first drainage pipe, a water collection plate is fixedly connected to the bottom of the inner side of the first drainage pipe, and a rainwater collection mechanism is mounted in the first drainage pipe and comprises a connecting rod in sliding connection with the first drainage pipe. The bottom of the connecting rod is connected with a water collecting air bag, the top of the connecting rod is connected with a circular plate, sewage pipes are arranged on the two sides of the first drainage pipe, one sides of the sewage pipes are connected with side pipes communicated with the first drainage pipe, the bottom of the first drainage pipe is connected with a second drainage pipe, and the two sides of the second drainage pipe are connected with grease pipes. And along with various kinds of garbage, according to the equipment, rainwater is firstly collected, then buoyancy generated by the rainwater on the water collecting air bag is utilized, the garbage gathered at the inlet is pushed to move upwards, the blocked garbage is discharged, rainstorm water is helped to be rapidly drained away, and the problem that a sewer pipeline is blocked is avoided.

The utility model discloses an urban channel embankment retaining wall structure which comprises an embankment, a water retaining system and a drainage system. The dike comprises a gravity type retaining wall and a concrete bottom plate, the gravity type retaining wall is of a right trapezoid section, the upstream side is vertical, the top of the concrete bottom plate is a horizontal plane and bears the gravity type retaining wall, the upstream side is thickened, and the dike is arranged on the two sides of the channel; the water retaining system comprises at least two groups of breast boards which can be moved into or out of the channel to connect and disconnect water flow, and an enclosure space formed by the two groups of breast boards and the dike is used as a construction area; the drainage system comprises a drainage main pipe and a drainage branch pipe, the drainage main pipe is arranged along the backwater side slope toe of the gravity type retaining wall in a full-length mode and located at the top of the concrete bottom plate, and the drainage branch pipe is located at the top of the concrete bottom plate and communicated with the channel at one end and connected into the drainage main pipe at the other end. The front portion of each drainage branch pipe is provided with a gate groove and a gate capable of sliding up and down along the gate groove, the drainage system is opened and closed by opening and closing the gates, and the drainage branch pipes are arranged on the outer sides of the at least two breast boards to serve as water inlet ends and water outlet ends respectively. According to the utility model, through gate lifting, breast board assembly and drainage of the drainage main pipe / branch pipe, the construction diversion of the dredging and overhauling channel section can be realized.

The intelligent water-saving and energy-saving vegetable greenhouse comprises a controller, a greenhouse roof and an initial rainwater discarding device, a plurality of rainwater guiding grooves are formed in the greenhouse roof, the initial rainwater discarding device comprises a rainwater container and a U-shaped pipe, a filtering cavity is formed in the top of the rainwater container and communicates with the rainwater container through a water collecting opening, one side of the filtering cavity communicates with the rainwater guiding grooves, and the other side of the filtering cavity communicates with the U-shaped pipe; one end of the U-shaped pipe is communicated with the bottom of the rainwater container, the other end of the U-shaped pipe is a drainage end, the water flow of the drainage end of the U-shaped pipe is smaller than that of the water collecting opening, the water collecting opening is connected with a floating ball through a rope, and the radial size of the floating ball is larger than the radial size of the water collecting opening; a drip irrigation pipeline is arranged in the greenhouse and communicated with the water storage tank through a water pump, and the controller is connected with the water pump. According to the greenhouse, the rainwater collection efficiency and cleanliness can be improved, the integrated design of rainwater collection, automatic irrigation and temperature and humidity adjustment is achieved, and the integration, the environmental protection property and the resource utilization efficiency of the greenhouse are improved.

The invention discloses a dish-washing machine, relates to the technical field of dish-washing machines and aims to solve the problem that humidity in an inner container is high after washing of a dish-washing machine in the prior art. The dish washing machine comprises a machine shell, an inner container, a drainage device and a dehumidification device, and a containing cavity is formed in the machine shell; the inner container is arranged in the containing cavity and connected to the machine shell. A cleaning cavity and a first water outlet communicated with the cleaning cavity are formed in the inner container; the drainage device is connected to the first water outlet and used for discharging waste liquid in the inner container to the outside of the machine shell; the dehumidification device is connected to the machine shell; the dehumidification device comprises a driving part and a drainage hose, one end of the drainage hose communicates with the first water outlet, and the other end of the drainage hose is used for communicating with the exterior of the machine shell; the driving part is connected with the drainage hose and used for squeezing the drainage hose in the radial direction of the drainage hose and squeezing the peripheral wall of the drainage hose in the flowing direction of media in the drainage hose so as to drive the media in the drainage hose to flow. The dishwasher is used for washing tableware.

The invention provides a waste iron ore tailing pond comprehensive treatment construction method which comprises the following steps: S1, landform measurement: measuring and detecting landform by using an unmanned aerial vehicle so as to form a digital model of a landform area range, S2, landform trimming simulation: trimming the generated digital model so as to form a landform area range, and S3, carrying out comprehensive treatment on the landform area range. The volume of earthwork needing to be carried and moved in the correction process can be calculated through a digital model, the carrying directions of different earthwork volumes are determined, and aiming at the problems of low actual construction efficiency and the like, protective measures such as an impermeable layer and a slope masonry grid are arranged on a dam body, vegetation greening and the like are adopted to eliminate potential safety hazards of the dam body; a percolation facility composed of a water storage layer, a percolation body, an anti-seepage film, a percolation pipe, a drainage pipe and the like, a plant buffer zone and the like are arranged in the reservoir area beach face range, and therefore a comprehensive integrated system combining interception, drainage, buffering and percolation of surface runoff is formed in the reservoir area range.

The utility model provides water reducing agent filtering equipment, which relates to the technical field of filtering and comprises a tank body and a rotating shaft, the bottom of the tank body is supported by three groups of supporting plates, a feeding port is formed in the top of the tank body, and a sealing plug cover covers the feeding port; the bottom of the tank body is funnel-shaped, a discharge pipe is connected to the conical tip of the funnel, and a water valve is mounted on the discharge pipe; a cleaning mechanism and an intercepting mechanism are arranged; the cleaning scraping plate scrapes off impurities intercepted on the filtering plate, so that the impurities fall into a pocket ring below; the intercepting plate I and the intercepting plate II cooperatively operate to divide the interior of the tank body into an upper independent space and a lower independent space; clear water is injected into the tank body through the water inlet pipe, meanwhile, the impurity removal pipe is used for draining water, the pocket ring is washed, and it is ensured that the pocket ring always maintains the good impurity storage capacity; timed cleaning of the filter plate is realized, and filtered impurities can be discharged; the problems that when existing filtering equipment is used for filtering and removing impurities of a water reducing agent, intercepted impurities are easily accumulated at filtering holes to form blockage, and the filtering effect is reduced are solved.

The utility model relates to a water turbine top cover pressure reducing, water draining and air supplementing shared system which is used for water turbine top cover pressure reducing, water draining and air supplementing and comprises a top cover, a water draining and air supplementing branch pipe, a water draining and air supplementing annular pipe, a water draining pipe, an air supplementing pipe and a reserved forced air supplementing pipe. The drainage pipe is led out from the pressure reduction drainage air supply ring pipe and drains water to a water turbine draft tube, the air supply pipe is led out from a power plant to the drainage air supply ring pipe, a reserved forced air supply pipe is arranged on the air supply pipe, and forced air supply can be conducted on the water turbine when necessary. According to the water turbine top cover pressure reduction drainage and air supply shared system, the functions of a top cover pressure reduction drainage pipe, a vacuum breaking valve and a reserved forced air supply pipe are integrated, and top cover equipment arrangement can be optimized.

The invention discloses a building drainage double-channel top-extending breather pipe system, and belongs to the technical field of building drainage engineering. Comprising an outer pipe, an inner pipe, a drainage stand pipe connector and a special ventilation stand pipe connector, the outer pipe and the inner pipe are arranged in a sleeved and concentric or eccentric tangent mode, the inner pipe extends out of the bottom of the outer pipe, the drainage stand pipe connector connected with a building drainage stand pipe is arranged at the extending end of the bottom of the inner pipe, and an outlet in the bottom of the outer pipe is obliquely connected with the special ventilation stand pipe connector. The special ventilation vertical pipe connector is connected with a building drainage special ventilation vertical pipe, and the top of the inner pipe and the top of the outer pipe extend out of a floor to form a top-extending ventilation pipe outlet communicated with the atmosphere outside a building. The system can significantly improve the drainage capacity of a building drainage system, reduce the number of roof-extending pipelines, reduce the roof water leakage rate, detect the airflow direction and air pressure in the drainage pipeline, further judge the working condition in the system, enhance the risk early warning capacity of the system, and lay a foundation for sound and intelligent water supply and drainage systems.

The supporting and irrigation device comprises a water containing device and a fixing structure, a supporting insertion rod used for being inserted into the ground is arranged at the lower end of a water containing body, a water inlet pipe is vertically arranged on the side face of the supporting insertion rod, and a drainage pipe communicated with the water inlet pipe is arranged at the bottom of the water containing body and provided with a switch valve; an annular water seepage main pipe is arranged on the outer side of the soil ball, and the water drainage pipe is located on the inner side of the annular water seepage main pipe and communicated with the annular water seepage main pipe. Through mutual cooperation of the supporting insertion rod, the fixing structure and the irrigation device, supporting and irrigation are combined, and the utilization rate of the device is high.

1. Name of the designed product: rescue vehicle. 2. Use of the designed product: used for pipe laying, drainage or water supply rescue operation. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

The utility model provides a toilet drainage deodorization system which comprises a pedestal pan cover, a plurality of drainers, a drainage main pipe and an exhaust main pipe, water seals are arranged in the drainers, the pedestal pan cover comprises a cushion ring, a cover plate and an air suction assembly, the air suction assembly comprises an exhauster, and a main air suction pipe communicated with the interior of the pedestal pan is arranged on the exhauster. An air outlet of the exhauster is communicated with the main exhaust pipe, each drainer is provided with a water supplementing pipe communicated with the water tank, the main air suction pipe is provided with an air-sensitive detection head, the cushion ring is provided with a pressure sensor, and one side, close to the cushion ring, of the cover plate is provided with an infrared sensor. When the device is used in a toilet, the exhauster works to pump and drain odor generated by a pedestal pan, a drainage pipe and a floor drain, and when water is flushed, the water inlet valve in the water tank supplements water to the water seal in the drainer, so that the water seal in the drainer can be effectively prevented from losing water and being invalid due to evaporation and siphoning; and water stored in the water seal can be prevented from being changed into a hotbed for breeding mosquitoes and bacteria for a long time.

The invention relates to the technical field of field infiltrating irrigation, and provides field infiltrating irrigation equipment and method.The field infiltrating irrigation equipment comprises a plurality of infiltrating irrigation pipes and further comprises a filter box, a centrifugal pump, a first flow dividing pipe, a drainage pipe and a filter mechanism, the filter box is arranged on one side of the multiple infiltrating irrigation pipes, and the centrifugal pump is arranged on the other side of the multiple infiltrating irrigation pipes; a box cover is installed on the top side wall of the filter box through bolts, the centrifugal pump is arranged on one side of the filter box, the output end of the centrifugal pump communicates with the filter box, a water inlet pipe is installed at the input end of the centrifugal pump, the first flow dividing pipe is arranged on one side of the infiltrating irrigation pipes, and the two ends of the first flow dividing pipe are sealed. A second flow dividing pipe is arranged between the first flow dividing pipe and the infiltrating irrigation pipe in a communicating mode, the drainage pipe is arranged between the filter box and the first flow dividing pipe in a communicating mode, and through the technical scheme, the technical problem that in the prior art, in the process of filtering water flow in the infiltrating irrigation pipe, a filter screen needs to be frequently cleaned, and the infiltrating irrigation efficiency is affected is solved.

The invention relates to the technical field of water treatment equipment, in particular to water treatment equipment with a magnetic seed cyclic regeneration function, which comprises a treatment bin, a conveying pipe, a drainage pipe and a discharge pipe are arranged on the treatment bin, a high-speed shearing machine and a magnetic separator are arranged in the treatment bin, a treatment device is arranged on the drainage pipe, and the magnetic separator is arranged in the treatment bin. A drainage groove is formed in the treatment device and is used for adsorbing magnetic flocculates in water discharged by the drainage pipe; a removing device for removing magnetic flocculates in the drainage groove is arranged on the treatment bin; a gathering device is arranged in the drainage groove, and an inclined plane part used for gathering and collecting the magnetic flocculate is arranged in the gathering device. The invention aims to improve the cyclic regeneration utilization rate of magnetic seeds and reduce the treatment cost of a magnetic flocculation water treatment method.

The invention provides an indoor unit of an air conditioner, which is provided with a drainage system with low cost and excellent laying freedom. An indoor unit (2) is provided with: a cabinet (5) that can be attached to the ceiling of an air-conditioned room; a heat exchanger (3) housed in the case (5); a drain pan (6) for storing drain water accompanying heat exchange by the heat exchanger (3); and a drainage system (33) for discharging the drainage stored in the drainage pan (6) to the outside of the case (5) and guiding the drainage to a drainage pipe (32) provided in the ceiling of the air-conditioned room, the drainage system (33) being provided with: a drainage pipe seat (31) protruding from the case (5); a flexible hose (35); and a first connection part (36) connecting the drain pipe seat (31) and the flexible hose (35), the first connection part (36) being inclined with respect to the protruding direction of the drain pipe seat (31).

The utility model belongs to the field of drainage engineering facilities, and discloses an FRP pipe lightweight concrete combined member, which comprises drainage ditch prefabricated members, direct connecting members and bent connecting members, FRP pipes are installed in the drainage ditch prefabricated members, a plurality of groups of cover plates are installed on the drainage ditch prefabricated members, and the drainage ditch installation can be completed by connecting the plurality of groups of drainage ditch prefabricated members. The drainage ditch prefabricated parts can be connected through direct-connection connecting pieces, if the drainage ditch needs to be bent, the drainage ditch prefabricated parts can be connected through bent connecting pieces at the bent positions, and during connection, the FRP pipes are connected with the connecting pipes in the connecting pieces in a welded mode, so that connection can be completed; the drainage ditch component is compact and reasonable in structural design, convenient to transport and convenient and fast to use and install, the construction period can be greatly shortened, and economic benefits are created.

The utility model discloses a vertical ecological flexible reinforced retaining wall panel for a channel, which belongs to the technical field of slope protection and comprises a wall panel, backfill soil positioned on the back of the wall panel and a plurality of layers of tie bars parallelly arranged in the backfill soil. The multiple layers of drainage blind pipe units correspond to the multiple layers of tie bars, each drainage blind pipe unit comprises a plurality of rectangular-section drainage blind pipes which are sequentially connected end to end, the surfaces of the drainage blind pipes are of a porous structure, the interiors of the drainage blind pipes are divided into grass seed areas and clay areas, the grass seed areas are located on the side close to the waterside, and the clay areas are located on the side close to the backfill soil. And each layer of drainage blind pipe unit is wrapped by the corresponding tie bar. According to the utility model, a good environment foundation can be provided for the construction of an ecological environment by forming the plant growth surface of the revetment structure.

The utility model provides a sewage treatment dephosphorization mechanism, and belongs to the technical field of sewage treatment. The mechanism comprises an air blower and a plurality of contact oxidation ponds which are distributed around the air blower as the center, the contact oxidation pond comprises a circular pond body, a buffer cylinder vertically arranged in the center of the pond body, a plurality of annular filler layers arranged around the buffer cylinder at intervals, and a drainage groove formed in the bottom of the inner side face of the pond body; an air outlet of the air blower and the interiors of the different pool bodies are connected with air inlet pipes; a drainage opening is formed in the outer side of the drainage groove; a water outlet is formed in the lower part of the buffer cylinder, a water inlet pipe is arranged in the buffer cylinder, one end of the water inlet pipe is positioned in the water inlet pipe, the other end of the water inlet pipe extends out of the tank body and is provided with water delivery pumps, one water delivery pump is externally connected with sewage to be treated through a pipeline, and the rest water delivery pumps are sequentially connected in series with the water outlets of the adjacent contact oxidation tanks through pipelines. The mechanism can intensify the layout of the contact oxidation pond and the air blowers, reduce the configuration number of the air blowers, and improve the dephosphorization effect.

The invention discloses an external supporting type net-shaped drainage device and a using method thereof, and relates to the technical field of foundation treatment and consolidation. A plurality of water absorption holes are formed in the side walls of the drainage branch pipes; through holes are formed in the side wall of the drainage main pipe, a scraping structure is fixedly arranged on each through hole, the drainage branch pipes, the through holes and the scraping structures are in one-to-one correspondence, and the drainage branch pipes penetrate through the corresponding scraping structures; the scraping structure is used for scraping sludge on the outer wall of the drainage branch pipe; and the drawing and inserting mechanism is used for driving the drainage branch pipe to reciprocate relative to the scraping structure. The method comprises the steps that in the negative pressure drainage process, after every set time, the drainage branch pipes are inserted into the drainage main pipe through the drawing and inserting mechanisms, and sludge on the outer walls of the drainage branch pipes is scraped away through the scraping structures. Sludge on the outer wall of the drainage branch pipe can be scraped off, and the drainage efficiency of a dredger fill foundation is improved.

The utility model discloses a tunnel construction reverse slope drainage device which mainly comprises a connecting pipe, a drainage pipe, two pulley pieces, a mounting table and a cleaning ring, the mounting table is provided with two wire winding pieces, the two wire winding pieces are provided with connecting ropes, the cleaning ring is connected with the two connecting ropes, and the two connecting ropes penetrate through the two pulleys respectively and then are connected with the two pulley pieces. According to the water drainage pipe cleaning device, the connecting rope is connected with the two wire winding pieces, and then through the action of the wire winding pieces, the connecting rope pulls the cleaning ring, so that the cleaning ring moves in the axial direction of the water drainage pipe, silt cleaning is conducted on the inner wall of the water drainage pipe, and therefore the inner wall of the water drainage pipe is easy and convenient to clean; and the drainage construction efficiency is further improved.

The invention discloses a farmland underground pipe drainage multi-stage purification management method and system, relates to the field of farmland underground pipe drainage multi-stage purification management, is used for flexible management of flood peak flow and minimization of environmental risk, and comprises the following steps: monitoring the drainage flow of a farmland underground pipe in real time; according to the drainage flow, whether a drainage flood peak exists or not is recognized; under the condition that a drainage flood peak exists, overload drainage is determined according to the drainage flow and the hydraulic load of the purification equipment; the overloaded drained water flows back to the farmland underground to be subjected to permeation treatment or is guided to an ecological stagnant storage area to be subjected to stagnant storage treatment; and after the drainage flood peak is finished, reguiding the overloaded drainage subjected to the retention treatment or the permeation treatment to the purification equipment for purification treatment.

The utility model discloses a building drainage double-channel top-extending breather pipe system, and belongs to the technical field of building drainage engineering. Comprising an outer pipe, an inner pipe, a drainage stand pipe connector and a special ventilation stand pipe connector, the outer pipe and the inner pipe are arranged in a sleeved and concentric or eccentric tangent mode, the inner pipe extends out of the bottom of the outer pipe, the drainage stand pipe connector connected with a building drainage stand pipe is arranged at the extending end of the bottom of the inner pipe, and an outlet in the bottom of the outer pipe is obliquely connected with the special ventilation stand pipe connector. The special ventilation vertical pipe connector is connected with a building drainage special ventilation vertical pipe, and the top of the inner pipe and the top of the outer pipe extend out of a floor to form a top-extending ventilation pipe outlet communicated with the atmosphere outside a building. The system can significantly improve the drainage capacity of a building drainage system, reduce the number of roof-extending pipelines, reduce the roof water leakage rate, detect the airflow direction and air pressure in the drainage pipeline, further judge the working condition in the system, enhance the risk early warning capacity of the system, and lay a foundation for sound and intelligent water supply and drainage systems.

The utility model relates to the technical field of water tank overflow, in particular to a water tank shell with an overflow structure, which comprises a water storage tank, and a tank cover is arranged at the top end of the water storage tank. The sealing mechanism capable of improving the sealing effect of the overflow pipe and preventing water flow from deteriorating is arranged at the top end of the box cover; by arranging the sealing mechanism, when redundant water flow in the water storage tank is discharged, the water flow is firstly conveyed into the mounting groove through the water guide groove by the drainage groove, foamed plastic is matched with the water flow to drive the ball plug at one end of the mounting rod to move upwards through buoyancy, and the water flow is discharged through the cooperation of the water guide groove and the drainage opening; the elasticity of the plastic spring is smaller than the buoyancy of the foamed plastic, and the overflow pipe is sealed through the inertia of the ball plug and the sealing ring and the elasticity of the plastic spring, so that the sealing effect of the overflow pipe can be improved, and external air is prevented from entering the water storage tank.

The present invention relates to an acid-base method for purifying a graphite rinsing device and a rinsing method, which are used in the technical field of graphite purification. It includes a rinsing tank, a graphite tank, an intermediate tank, a water tank, a return water pipe, an inclined plate, a feed inlet, a feed pipe, a water pump, a water inlet pipe, a water inlet, a graphite-water intersection, a mixing pipe, a spray head, a manhole, a frame type stirrer, a discharge valve, a driving device, a discharge pipe, a foam stirring driving device, a foam stirrer, a discharge valve, a slurry pump, a discharge pipe, a drain valve, a sewage outlet, a sewage valve, a return water cofferdam, and a stirring shaft. The rinsing method of the invention is simple, has good effects, occupies a small area, has a compact structure, and can continuously discharge materials for production. In practical applications, it shows obvious environmental protection and energy-saving effects, solves the problem of environmental pollution of graphite acid-base purification wastewater, and at the same time reduces the cost of graphite purification, having obvious environmental, social and economic benefits.

The application provides a method for detecting water pollution in a buried pipe drainage well and a water pollution monitor. The water pollution concentration of each detection node in the buried pipe drainage well is detected by an intelligent water quality sensor. The mutual support degree of the water pollution detection results between the intelligent water quality sensors is determined according to the cross-correlation coefficient of the water pollution concentration between different detection nodes and the spatial topology structure of the intelligent water quality sensor. The interference evaluation index of the water pollution detection at different depths is obtained by fuzzy evaluation of the interference effect intensity of the stratified water pollution detection at different depths according to the vertical concentration gradient of the water pollution in the buried pipe drainage well and the local flow velocity of the water body at different depths. The water pollution concentration of each detection node is cost fused based on all the mutual support degrees and the interference evaluation index of the water pollution detection at different depths, and the fusion pollution degree of the water pollution is obtained. The cost fusion of multi-source information in the water pollution detection process of the buried pipe drainage well can be realized by adopting the scheme.

The invention relates to the technical field of agricultural engineering, in particular to an intelligent irrigation and salinity regulation and control integrated system for cotton saline-alkali soil improvement, which comprises a plurality of irrigation pipes, the irrigation pipes are communicated with a plurality of branch pipes, the irrigation pipes are further sleeved with a plurality of regulation devices, and each regulation device comprises a plurality of stages of support rods which are sleeved end to end; water inlets for allowing saline water to enter the supporting rods are formed in the positions, close to the bottom ends, in the supporting rods, and buoyancy unfolding mechanisms for driving the next-stage supporting rods to be vertically unfolded through saline water injection are arranged in the supporting rods; a conversion assembly used for switching the drainage hole diameter of the branch pipe according to the lifting height of the supporting rod is arranged between the irrigation pipe and the last-stage supporting rod. Buoyancy expansion mechanisms of the multi-stage supporting rods in the adjusting device are linked with the conversion assemblies to automatically switch the drainage hole diameters of the branch pipes, and in combination with real-time sensing and dynamic strategies of the irrigation regulation and control system, full-period automatic salt regulation and control and precise irrigation of cotton saline-alkali soil in winter, uniform spreading and icing of saline water and salt return prevention of under-mulch drip irrigation in spring are achieved.

The utility model discloses a riverway sludge discharge device for water conservancy, which comprises a crushing device, a sludge suction pipe, a drainage tank, a collection tank and a filter screen, the crushing device is fixedly communicated with the top of the drainage tank, the collection tank is fixedly communicated with the right side of the drainage tank, and the sludge suction pipe is fixedly communicated with the top of the left side of the crushing device. The filter screen is fixedly installed in the drainage tank, transmission rods are arranged on the two sides of the interior of the drainage tank, and transmission cams are arranged on the surfaces of the transmission rods. By arranging the transmission cam, the transmission cam can be driven to rotate to knock the filter screen after the transmission rod rotates, so that the problems that the filter screen is used for filtering moisture in sludge in the use process, and the sludge attached to the filter screen can be dried and adhered to the filter screen when the filter screen is not used are solved; and the device is not provided with a cleaning structure, so that the dried sludge can block a filter screen to influence normal filtration of the filter screen, and certain limitation exists.

The present application relates to the bait manufacturing technical field, especially to a kind of construction method of subsurface pipe drainage of saline-alkali cultivated land, comprising: site leveling and geological survey are carried out to the saline-alkali cultivated land to be improved, and the laying parameters of subsurface pipe and seepage ditch are determined. The integrated laser pipe-laying machine is used to lay horizontal subsurface pipe at preset depth, and simultaneously fill filter material to form water-permeable filter material layer wrapping subsurface pipe, vertical seepage ditch is laid perpendicular to horizontal subsurface pipe, the bottom of seepage ditch is flush with the top of water-permeable filter material layer, the top penetrates plough bottom layer and extends into cultivated layer, controllable drainage device is installed at the water outlet of subsurface pipe, soil backfilling and compaction are carried out to construction area, controllable drainage device is debugged, and drainage and water storage functions are verified. In the present application, the effects of rapid water permeation of cultivated layer and long-term unobstructed drainage of subsurface pipe are achieved, and the problems of existing technology, such as seepage failure of clay type, silt type and soda saline-alkali soil after dry and wet hardening, and failure of subsurface pipe to drain water in the following year, are solved.