140 results about "Water district" patented technology

The utility model relates to the technical field of extruders, and provides an extruder for cable processing, which comprises a shell, one end of the shell is provided with an extrusion device, the other end of the shell is provided with a winding device, and the top end of the extrusion device is fixedly connected with a feeding end; the shell comprises a water tank, a vertical plate and a bottom plate, the water tank is fixedly connected to one end of the vertical plate, the bottom plate is fixedly connected to the lower portion of the water tank, and the water tank is provided with a movable water area. The extrusion device comprises two material pushing shafts, a wire core, a first rotating shaft, a second rotating shaft, a filter screen cover, a wriggling handle, a hose and a jacking block, the two material pushing shafts are rotationally connected to the inner wall of the feeding end, and the wire core is rotationally connected to the axis of the inner wall of the feeding end. According to the utility model, the labor intensity of workers is reduced, and the task load of the workers is reduced.

The invention relates to the technical field of drainage management, in particular to an intelligent data analysis system for drainage management, which is characterized in that full-chain data from a source, a permeable area, underground water and a tail end are comprehensively acquired through a drainage acquisition module, and a comprehensive water level capable of reflecting the overall load state of the system is calculated through a weighted fusion formula; according to the evaluation method based on the curve form similarity, a comprehensive water level curve is drawn, and the comprehensive water level curve is compared with an expected drainage curve, so that the system can objectively give a conclusion that drainage management is qualified or unqualified in a rainfall event. Compared with single-point over-limit alarm, the dynamic response capability of the system in the time dimension can be reflected more comprehensively, management evaluation is standardized and scientific, and intelligent, accurate and robust self-calibration of core capability parameters of the drainage system is achieved by establishing a dynamic proportional adjustment mechanism based on a preset integral difference value.

The application belongs to the technical field of drain valves, and discloses a time-delay valve core, a time-delay drain valve applying the same and a sanitary ware, wherein the time-delay valve core comprises: a body provided with a water inlet area, a water control flow channel and a water passing area, the water control flow channel being communicated between the water inlet area and the water passing area; a first adjusting member rotatably installed on the body, the water control flow channel being configured to change the water discharge flow to the water passing area with the rotation of the first adjusting member; and according to the water discharge requirement of a product, the water discharge flow of the water control flow channel is adjusted by using the first adjusting member, so that the adjustment of multiple water efficiency is realized, and the time-delay valve core is suitable for different water products. The whole structure is simple, the adjustment is convenient, and the applicability is wide.

The utility model relates to a sedimentation tank capable of avoiding blockage of an inclined tube, which comprises a shell, a vertical plate is arranged on one side of the shell and divides the shell into a water inlet area and a sedimentation area, a through groove is arranged below the vertical plate and communicated with the water inlet area and the sedimentation area, a dust accumulation groove is arranged at the bottom of the sedimentation area, the inclined tube is arranged in the sedimentation area, and the inclined tube is arranged in the through groove. An aeration pipe is arranged below the inclined pipe, the aeration pipe comprises a main pipe and side pipes arranged on the two sides of the main pipe in pairs, and the pair of side pipes are connected with each other; the structure of the aeration pipe is improved, the aeration area is increased, and the stability of the aeration pipe is ensured.

The utility model relates to a dish-washing machine technical field especially relates to a double residue separation's dish-washing machine, including located dish-washing machine cleaning pool side's residue discharge box and set up in dish-washing machine cleaning pool bottom's sewage pipe, residue discharge box with sewage pipe communicate, residue discharge box includes residue pool and water storage pool, residue pool and water storage pool in top communicate, sewage pipe with residue pool in bottom communicate, residue pool side is equipped with residue discharge port and first residue separation spare, water storage pool includes water receiving area and is located in the circulating water area of water receiving area bottom, is equipped with second residue separation spare between water receiving area and circulating water area, and the circulating water collection pipe that communicates has in circulating water area, the circulating water collection pipe is used for collecting the water in circulating water area to dish-washing machine cleaning pool inside. The residue discharge structure of dish-washing machine of the application can effectively discharge residue, prevent pipe blockage, and can also reduce water cost simultaneously.

The utility model relates to an enhanced denitrification device for a microbial electrolysis constructed wetland. The enhanced denitrification device comprises a constructed wetland system, an electrolysis system and an intelligent control system, the constructed wetland system comprises a water distribution area and a constructed wetland reaction area; a water inlet device is arranged in the water distribution area, and the water distribution area is communicated with the constructed wetland reaction area through the water inlet device; wherein an electrolysis system and an intelligent control system are also arranged in the constructed wetland reaction zone. The device has the advantages that the removal of pollutants, mainly nitrogen, of the constructed wetland is enhanced by mainly utilizing external voltage in the electrolysis system 2, and the water inlet flow, the external voltage and the distance between the electrodes can be adjusted according to the intelligent control system 3, so that the surface hydraulic load of the constructed wetland and the current intensity in the wetland are controlled; and the two systems cooperate to enhance the removal of pollutants, especially nitrogen, of the constructed wetland, so that the pollutants in water are efficiently removed, the water quality of discharged wastewater is improved, and the environmental water quality is improved.

The invention relates to the technical field of pollution detection devices, in particular to a waterfront water and soil loss non-point source pollution detection device and method.The waterfront water and soil loss non-point source pollution detection device comprises a water and soil loss monitor, the water and soil loss monitor is installed on a supporting plate, the supporting plate is in lap joint with the top of a ditch supporting plate, and wire bunching arms are rotationally connected to the two sides of the supporting plate; the surface of the bunching arm is provided with a bunching groove, the connecting end of the water and soil loss monitor is connected with a wire, one end of the wire is provided with a sensor probe, and the wire and the sensor probe both extend into the bunching groove; the device has the advantages that the bunching arms rotationally connected to the two sides of the supporting plate are ingenious in design, the bunching arms can swing downwards to the bottom of the ditch supporting plate, and a sensor probe installed at one end of a wire can extend into a ditch to detect a flowing water source. Meanwhile, the bunching groove formed in the surface of the bunching arm provides an ordered placement space for the wire and the sensor probe, and the wire bunching arm is fixed through the cooperation of the bunching groove and the hand-twisted screw, so that the wire and the sensor probe are effectively prevented from swinging under the impact of water flow.

The utility model provides a chromatographic column head with a pore fluid distribution cover, which comprises a column head bottom plate for storing and discharging liquid and a column head top plate covering the top of the column head bottom plate and used for injecting liquid and exhausting, and a water injection pipe for injecting water into the column head bottom plate is arranged in the center of the top of the column head top plate. A groove used for storing liquid is formed in the column head bottom plate, a plurality of liquid drainage holes communicated with the outside are formed in the bottom of the groove in an arrayed mode, a liquid distribution disc structure with the same projection area as the groove is arranged in the groove, and the liquid distribution disc structure is in an arc shape. The circle center of the liquid distribution disc structure and the axis of the water injection pipe are collinear, the liquid distribution disc structure comprises a water avoiding area arranged under the water injection pipe and a liquid distribution area arranged around the water avoiding area, and the area of the water avoiding area is larger than or equal to the projection area of an inner hole of the water injection pipe. A plurality of liquid separation holes are formed in the liquid separation area around the water avoiding area.

The utility model discloses a novel nitrogen reduction electro-adsorption treatment device which comprises a plurality of adsorption modules, each adsorption module comprises a shell, PP clamping grooves are formed in the two sides of the shell, polar plates are placed in the shell through the PP clamping grooves, two first partition plates are installed in the shell, and the two first partition plates are arranged in the shell. The interior of the shell is divided into an adsorption area located in the middle and main concentrated water areas distributed on the two sides through a first partition plate. The device disclosed by the utility model has the advantages that the device is suitable for treating the ionic high-TN-concentration enterprise production wastewater under a mixed wastewater condition, and the cost is low and the efficiency is high.

The utility model discloses a metering tank, belongs to the technical field of sewage treatment equipment, and particularly relates to a metering and discharging device for sewage treatment, which comprises a tank body, a metering tank and a discharging tank, and the tank body comprises a water inlet area, a metering area, a buffer area and a water outlet area; the buffer area is communicated with the metering area; an energy dissipation retaining wall is arranged in the water inlet area; according to the metering tank, the energy dissipation retaining wall is arranged in the water inlet area of the metering tank and can reduce the pressure when sewage enters the metering tank, so that metering failure caused by overlarge water inlet flow is prevented, meanwhile, the buffer area is arranged on one side, the overall flow of the metering tank is further limited, and the metering efficiency is improved. Therefore, the flow of the fluid can be accurately measured, and powerful support is provided for reasonable distribution of water resources, environmental protection, industrial process control and the like; by monitoring the flow data in real time, the use and distribution strategy of water resources can be adjusted in time, and the working efficiency and the resource utilization rate are improved.

This water-saving device features a flow rate adjustment function that allows for flow rate settings across a wide range due to its simple structure. [Solution] A water-saving device according to one aspect of the present invention is a water-saving device connected to a water supply device and adjusting the discharge flow rate, comprising a water supply unit, a water-saving adjustment unit and a discharge unit, wherein the water-saving adjustment unit comprises a water-passing member having a plurality of water-passing holes and a water-controlling member disposed opposite to the water-passing member, wherein the water-passing member alternately comprises n water-passing regions and n water-stopping regions, wherein the water-passing regions include a first water-passing region and a second water-passing region having a second water-passing hole whose radial opening width changes continuously along the circumferential direction, wherein the water-passing member and the water-controlling member are rotatably movable relative to each other and can be set as at least m types of flow rate setting patterns, and the flow rate discharged from the discharge unit is adjusted according to the setting of the flow rate setting pattern.

The utility model discloses a bio-trickling filter tank filled with ceramsite filter materials, which comprises a tank body, and the tank body internally comprises a water distribution area, a filler area and a water production area which are separated by a jacking layer and a bearing layer and are communicated with one another from top to bottom; a water inlet pipe and a water outlet pipe of the tank body are respectively communicated with the top and the bottom of the tank body; a self-rotating water distributor connected with the water inlet pipe is mounted in the water distribution area and is used for uniformly distributing sewage entering through the water inlet pipe onto the filler area; the filler area is filled with a ceramsite filter material for microbial biofilm formation and is used for purifying sewage uniformly distributed in the filler area; the water producing area is used for collecting clear water purified by the filler area, and the collected clear water is discharged through a water outlet pipe. The biological trickling filtration tank adopts an integrated structure, the civil engineering cost can be reduced, the ceramsite filter material is light in weight and low in price, the sewage treatment effect is good, rural domestic sewage can be conveniently and movably treated, and the possibility that equipment is idle is reduced.

The utility model relates to a desktop water purifying and drinking machine, and is applied to the field of water purifying and drinking machines. The interior of the water purifying and drinking machine is divided into a filter element area, a water tank area, a refrigeration area, a water piece area and a water receiving area by a main body rack, and the filter element area is located in the middle area of the main body rack; the water tank area is arranged at the upper part of the rear side of the filter element module; the refrigeration area and the water piece area are arranged at the lower part of the rear side of the filter element module; a heating body is further arranged on one side of the filter element module in the width direction; the water receiving area is arranged in front of the filter element module and comprises a first water receiving area and a tea boiling area which are arranged side by side in the width direction of the filter element module, a water outlet nozzle is arranged in the water receiving area, and water outlets of the refrigeration module and the heating body are communicated to the water outlet nozzle. The desktop type multifunctional water purifying and drinking machine has the functions of making normal-temperature water, hot water and cold water and boiling tea at the same time, all the components are arranged in a centralized and compact mode, miniaturization and integration of the whole machine can be achieved easily, the positions of all the operation areas accord with use habits of users, and the operation convenience of the users can be improved easily.

This invention discloses a top-sealed water flow rate testing device for a water-cooled magnet coil, comprising a container assembly and a water-blocking assembly. The water-blocking assembly, used to block the coil under test, is disposed inside the container assembly, dividing the interior of the container assembly into a high-pressure water zone and a low-pressure water zone. The container assembly is provided with an inlet and an outlet, the inlet communicating with the high-pressure water zone and the outlet communicating with the low-pressure water zone. The water-blocking assembly includes a sealing cap and a sealing ring. The sealing cap is disposed on top of the central through-hole of the coil under test, and the outer side of the sealing ring is sealed to the inner wall of the container assembly, while the inner side is sealed to the coil under test. The advantage of this invention is that, through the setting of the water-blocking assembly, the inlet is connected to an external cooling water supply system. The flow rate entering the high-pressure water zone from the inlet can be measured by measuring the water flow rate entering the inlet using an electromagnetic flow meter, thereby realizing the testing of the water flow rate of a single coil under test.

The application provides a water invasion amount identification method, system, device and medium in the production process of a water and gas reservoir well, comprising the following steps: establishing a corresponding equivalent water invasion model based on the relative position relationship between the water area and the gas area of the reservoir well; establishing a water invasion material balance model according to the stage division of the equivalent water invasion model and the pressure measurement time points in previous years; iteratively calculating the water invasion material balance model based on the principle that the stage water area pressure linearly decreases according to the stage water invasion amount; and evaluating the water body drainage line and guiding the drainage gas production of the reservoir well based on the iteratively calculated water invasion material balance model. The application selects the equivalent water invasion model corresponding to different well production geological models, establishes an iterative algorithm meeting the gas and water flow material balance equation, obtains well historical pressure parameters and reservoir parameters, calculates the current water invasion amount, and is further used for evaluating the water body and guiding the drainage gas production of the gas field well. The application can simplify parameters, avoid the situation that the crack water invasion model in the prior art cannot accurately depict and has difficulty in multi-parameter representation.

The present application belongs to sewage treatment technical field, especially to a kind of energy-saving and environment-friendly sewage treatment system, including sewage pool, the partition plate is arranged between water storage area and filter area, the coarse grid machine of oblique arrangement is provided in the filter area, the water-collecting pool of trapezoidal shape design is provided below the filter area, rotating assembly is provided in the water-collecting pool corresponding with the water outlet end below the coarse grid machine, the transmission assembly connected with rotating assembly is provided in the partition bin, petal valve is provided on the partition plate corresponding with the coarse grid machine, box is provided in the partition bin close to the partition plate, drive mechanism for driving power to control petal valve free opening and closing for receiving transmission assembly is provided in the box.The present application is reasonable in design, simple in structure and realizes the recovery of kinetic energy in the process of sewage treatment, and feedback to sewage treatment system, to achieve the purpose of cost reduction and efficiency improvement, in line with the production concept of energy saving and environmental protection, meet the use demand.

The present disclosure relates to a water distribution system, a cooling tower and an integrated cooling station, comprising a water distribution device having a disc body (1) and a flow guide (2) arranged on the bottom surface of the disc body (1) and extending along a first direction, configured to divide the disc body (1) into a water distribution area (11) and an adjustment area (12) along a second direction, the bottom surface of the water distribution area (11) is provided with a plurality of spray holes (110), the flow guide (2) is spaced apart from both ends of the disc body (1); a water supply device (3) arranged at one end of the disc body (1) along the first direction, configured to provide a water flow; and an energy consumption device (4) arranged at one end of the disc body (1) close to the water supply device (3) and communicated with the water supply device (3), having a first energy consumption part arranged on the water flow path and a second energy consumption part arranged at an angle with the first energy consumption part, the first energy consumption part has a first water outlet hole facing the water outlet of the water distribution area, and the second energy consumption part has a second water outlet hole facing the water outlet of the adjustment area.

This invention provides a water level measuring device that can measure water levels more reliably, and a method for producing water level data. [Solution] In the water level measuring device, the determination unit 21 of the processing unit 2 determines whether or not it is possible to distinguish the boundary line between the water surface-related structure and the water surface in the measurement image acquired by the camera 1. If the determination unit 21 determines that it is not possible to distinguish between the water surface-related structure and the water surface, the setting unit 22 sets a point on the boundary line between the water region and a region in the non-water region that is at a different location from the fixed structure as the boundary point. The setting unit 22 sets the point where a virtual horizontal line passing through the boundary point intersects the water surface-related structure as the water level determination point and sets at least one position reference point. Based on the positions of the water level determination point and the position reference point in the measurement image, the extraction unit 24 extracts a reference image corresponding to the measurement image from a plurality of reference images as an extracted image.

The present application relates to a kind of for deep recess open-pit new level development water pressure environment reconstruction efficient ditching method, the lithology and fracture distribution characteristics of rock mass in the in-and-out ditch ditching area are proved, and according to this, each construction section of in-and-out ditch channel is subdivided into water gushing area, conventional area and first blast area.In first blast area and water gushing area and outside, uniformly arrange precipitation well, outside, arrange drainage well, after the surface fissure water is drained in advance, from first blast section, it is formed to gather water loose blast pile by rapid penetration and blasting to both sides.In the pre-splitting blast hole drilled between drainage well and the first blast area and water gushing area of channel, bottom is strengthened charge and is simultaneously detonated with adjacent channel construction section, and through drainage passage is formed in the bottom of blast pile between drainage well and in-and-out ditch.In the completion of penetration and blasting, water pump in drainage well is full load continuous pumping, so that the water level of blast pile is lower than the operating surface of electric shovel, and electric shovel is combined with car flat car full section high continuous ditching to new level operating surface.The present application has the advantages of improving penetration and blasting effect, improving ditching efficiency, flexible selection of development opportunity etc..

The application discloses a large two-way water flow test platform water flow regulating device, which is composed of a device body, and comprises a first test area, a second test area, a steady flow mechanism, a first outflow mechanism and a pool; the pool is provided with the first test area and the second test area; one side of the pool is provided with the steady flow mechanism, and the other side of the pool is provided with the outflow mechanism; wherein: the steady flow mechanism comprises a second outflow mechanism, a rectifier box, a water stabilizing area, a water stabilizing grid and a water discharge mechanism; the rectifier box is connected with the water stabilizing area arranged on the pool through a support frame; the rectifier box is connected with the water stabilizing grid through a water stabilizing unit; the water stabilizing grid is connected with the first test area and the second test area through water supply pipelines respectively; the water discharge pipeline is connected with the water stabilizing area, and the application can regulate two-way water flow in a smaller range and ensure that the boundary conditions of a simulation area are consistent with the actual conditions.

The present application belongs to the technical field of water treatment, and specifically relates to a siphon valveless filter tank for water treatment and a backwashing method. The filter tank comprises a filter tank main body, a water inlet system, a filtering system, a backwashing system, a clean water collecting system and a control valve assembly. The inside of the filter tank is provided with, from top to bottom, a clean water area, an ultra-high space, a sand washing tank, a filter material layer, a supporting layer, an air-water distributor and a water distribution area, and a vertical shaft water distribution channel is arranged in parallel on the side. The water inlet system eliminates the air entrainment phenomenon through the vertical shaft water distribution channel. The backwashing of the filter tank comprises two modes of hydraulic automatic control and program control, and both modes integrate air-water combined backwashing operation. The present application combines the advantages of homogeneous filter material deep bed filtration and hydraulic automatic control, realizes air-water combined backwashing, and efficiently removes impurities in the filter layer. The filter tank has compact structure, is easy to operate and maintain, and can expand the treatment capacity of a single tank as needed, and is suitable for water treatment scenes such as water supply treatment, sewage treatment and water purification, and is especially suitable for new construction and old plant reconstruction of medium and small water plants.

The utility model relates to the field of municipal construction, in particular to a stepped bioretention belt based on terrain adaptation, which comprises a bioretention belt body, the section of the bioretention belt body is provided with a water storage layer / water retaining weir, a planting layer, a sand filter layer and a gravel layer from top to bottom, and a permeable blind pipe is arranged in the gravel layer. Uniform water distribution is achieved through a plurality of water holding areas distributed in a stepped mode, rainwater entering the water holding areas is collected through natural infiltration in a pebble bed or a permeable blind pipe, the rainwater exceeding the infiltration capacity is continuously accumulated in the water holding areas, and when the water storage height exceeds the crest height of a water retaining weir, the rainwater overflows to the next water holding area. According to the stepped bioretention belt, initial rainwater runoff pollution can be reduced, the rainwater runoff peak value can be reduced, the runoff yield can be reduced, and the problems of runoff flushing, uneven permeation and the like can be avoided.

The invention discloses a whole watershed rain disaster prevention system, which belongs to the field of water conservancy disaster prevention and relief, and can select a water retaining structure authorized by an applicant or other suitable water retaining structures as a basis, match with an existing modular plug-in type water retaining plate, depend on original water conservancy facilities such as river channels, trunk canals and branch canals, and fuse big data, communication and automation technologies. A three-level disaster prevention system of a water retaining device, a drainage basin stagnation point and a water regime monitoring and processing center is constructed, and an inside-city disaster prevention subsystem and an outside-city disaster prevention subsystem are arranged. A three-layer drainage system of canopy rain shielding and water guiding, water retaining device canal forming and sewer pump station water pumping is constructed in a city, water retaining devices are arranged in a smooth zone in advance according to flood control standards and topographic contour lines outside the city, a stepped water storage area is formed, and the drainage link is divided into three-level drainage networks of rivers, main canals and branch canals. According to the system, the water regimen monitoring and processing center is used for realizing all-basin collaborative scheduling and is deeply bound with four pre-mechanisms of a weather bureau and an emergency management bureau, so that the management method is technologically integrated; the water retaining device can be quickly laid and detached without residues, and the modularized water retaining plate can be pulled out to adjust the water storage amount and is connected with the flexible water retaining device. The system is low in cost and fast in deployment, replaces traditional sandbag layout, can greatly improve efficiency, can form million-magnitude water storage and drainage units in a short time, has emergency guarantee for extreme working conditions, has ecological and economic values, can effectively cope with drainage basin heavy rain and rainstorm disasters, reduces loss to the maximum extent, and has wide popularization and application values.

The application discloses a time-varying runoff coefficient calculation method and system reflecting urbanization underlying surface regulation and storage, and steps are as follows: S1, obtaining rainfall data of a city research area, drawing a column chart and a curve chart of a rainfall process, and extracting high-precision digital surface model data by using high spatial resolution satellite stereo image pair data; S2, performing grid processing on the high-precision digital surface model data, constructing a grid type, and performing land utilization division and extraction analysis; S3, calculating hydrological parameters including a basin water content parameter, vegetation interception, a filling and depression parameter and a infiltration parameter; S4, calculating building roof runoff, effective impervious area, non-effective impervious area, pervious area and water area based on the rainfall process, the land utilization division and the hydrological parameters; and S5, calculating a time-varying runoff coefficient. The application can accurately evaluate the availability of rainfall water resources, provide scientific guidance for urban rainwater collection and utilization, and provide a more reliable basis for urban flood forecasting and drainage system design.

The invention discloses an aerobic three-phase separation reactor, a water treatment system and a recycle ratio adjusting method of the water treatment system, and belongs to the technical field of environment-friendly sewage treatment. The aerobic three-phase separation reactor comprises a water guide area which is an interlayer space formed by sleeving an outer tank and an inner tank, the inner tank is arranged in the outer tank, and a lower port of the inner tank is communicated with the outer tank; a plurality of water inlets are formed in the outer tank corresponding to the water guide area, and a backflow regulator is arranged above the water inlets; the water distribution and energy dissipation area is positioned in the inner tank and is communicated with the water guide area; the clarification area is positioned in the inner tank and above the water distribution and energy dissipation area; the clear water area is located in the inner tank and above the clarification area, an effluent weir is arranged, and a water outlet is formed in the junction of the effluent weir and the outer tank; and the sludge bucket area is positioned in the outer tank and below the water distribution and energy dissipation area. The water treatment system comprises the aerobic three-phase separation reactor and provides a recycle ratio adjusting method. According to the invention, the water inlet flow of the aerobic three-phase separation reactor is adjusted, and the recycle ratio of the water treatment system is accurately adjusted.

An intelligent sewage system designed for use in municipalities around the Wildland Urban Interface incorporates a decentralized network of wastewater treatment units to process wastewater from a plurality of parcels. The decentralized wastewater treatment units spread a Biological Oxygen Demand (BOD) reduction of the wastewater throughout the system and effluent is delivered efficiently through a pressure sewage system. Non-potable and potable water supplies are generated and delivered to individually separable water distribution zones throughout the municipality. The system also provides an auxiliary high-pressure, high-flow non-potable water supply to compensate during depressurization events and bolster the water distribution zones in the event of a wildfire emergency event. The intelligent sewage system also incorporates a comprehensive wildfire defense network and a supervisory control and data acquisition system which work in concert to harden the municipality against wildfire risks and combat active wildfires.

The utility model relates to the technical field of sewage treatment equipment, in particular to an automatic control reverse osmosis treatment device, which comprises first reverse osmosis equipment and second reverse osmosis equipment, the first reverse osmosis equipment comprises an osmosis bin, an osmosis membrane body arranged in the osmosis bin and a central pipe arranged in the osmosis membrane body, a water purification hole is formed in the central pipe, the central pipe is communicated with the permeable membrane body, the permeable membrane body divides the permeable bin into a fresh water area and a concentrated water area, the permeable bin is provided with a water inlet communicated with the fresh water area, the permeable bin is provided with a water outlet communicated with the concentrated water area, and the water outlet is in pipeline connection with a conductivity sensor. The water inlet is connected with a high-pressure pump through a pipeline, and the high-pressure pump is electrically connected with the conductivity sensor; the reverse osmosis membrane accurately controls the flow of a concentrated water area, effectively prevents impurities from forming a concentration polarization layer on the surface of the reverse osmosis membrane body, prevents the impurities from depositing into an irreversible pollution layer, and prolongs the service life of the reverse osmosis membrane body.

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment device with a self-cleaning function, which comprises a box body, a first cover plate and a second cover plate are mounted on the box body, and a water inlet pipe and a water outlet pipe are respectively arranged at two ends of the box body. A plurality of partition plates are arranged in the box body and are used for dividing the box body into a stirring area, a primary filtering area, a secondary filtering area and a water storage area; the stirring area comprises a stirring assembly, and the stirring assembly is used for stirring sewage; a filtering basket is mounted in the preliminary filtering area and is used for preliminarily filtering large-particle impurities; a filter screen cylinder assembly is arranged in the secondary filter area, and a dirt suction and cleaning assembly is arranged on the outer side of the filter screen cylinder assembly in a matched manner; the secondary filtering area further comprises a dosing assembly, and the dosing assembly is used for adding a treatment agent into the sewage; the sewage treatment device integrates the functions of stirring, filtering, dosing and self-cleaning, realizes efficient and automatic treatment of sewage, and has a wide market application prospect.

This utility model discloses a tidal tank, including a main tank, an overflow connecting pipe, a bottom filtration system, and a water circulation system. The main tank is equipped with a partition plate dividing it into a water zone and at least one land zone. The land zone includes a tidal pool and an elevated filtration isolation layer. Above the elevated filtration isolation layer forms a land area isolated from the tidal pool, and below the elevated filtration isolation layer forms a water circulation zone. The inlet end of the overflow connecting pipe extends into the water zone and is below the water level, while the outlet end extends into the land zone and is above the tidal pool. The overflow connecting pipe is equipped with a control valve to control its opening and closing. The bottom filtration system is located below the main tank, and the water circulation system connects the bottom filtration system and the main tank. The water level in the aforementioned tidal tank does not fluctuate drastically with the tides, and the bottom filtration system requires less storage space, thus reducing its space occupancy.

This invention relates to the field of water treatment technology, specifically to a perforated pipe water distributor for a water treatment reactor. It includes two sets of symmetrically distributed lateral narrow-side perforated main pipes and transverse perforated main pipes. The two sets of lateral narrow-side perforated main pipes and transverse perforated main pipes are fixedly connected to form a perforated distribution surface. A water distribution end inlet pipe is vertically installed at the center of each of the two lateral narrow-side perforated main pipes. Due to the reverse pressure gradient effect of the fluid gradient at the junction of the layered perforated branch pipes in the water distribution section and the variable-diameter chamfer on the sinking side, the main fluid stream detaches from the perforated side wall on the water distribution side and forms a vortex. Furthermore, influenced by the variable-diameter outlet cross-section of the conical water distribution sleeve, the water flow ultimately exhibits an increased outlet diameter and decreased fluid velocity when passing through the conical water distribution sleeve cross-section. This allows for sufficient and stable flow towards the outlet perforation on the end water distribution side, where no variable-diameter water distribution compensation component is installed.