659 results about "Sanitary sewer" patented technology

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment process model parameter correction method and system. The method comprises the following steps: acquiring sensing data of a multi-point facility through a sewage treatment sensing network, extracting a topological structure of a sewage pipeline, projecting the data into the topological structure, marking position information, constructing an initial sewage treatment process model based on the information, extracting a sewage data set of a treatment process, and establishing a sewage treatment process model; the system simulates a sewage treatment environment, generates virtual flow field data, tracks particle motion, draws a sedimentation curve and generates particle sedimentation track offset data, obtains morphological parameters of a sedimentation tank, reconstructs the framework of the sedimentation tank, predicts a sedimentation imbalance state, backtracks and analyzes model parameters through an abnormal state, and corrects the model parameters. And generating an optimized sewage treatment process model. According to the invention, the operation efficiency and the treatment effect of the sewage treatment facility are integrally improved, and the intelligent and refined development of the sewage treatment technology is promoted.

The invention discloses a sewage pipeline defect detection method and system based on an improved YOLO11 network. The sewage pipeline defect detection method comprises the following steps that a pipeline CCTV robot is used for collecting a defect image sample in a sewage pipeline; the YOLO11n basic network is improved by using an MSGA module, an AIFI module and a positioning loss function Wise-Inner-IoU so as to construct a sewage pipeline defect model; inputting the acquired defect image sample in the sewage pipeline into a sewage pipeline defect model for training, and performing data enhancement on the acquired defect image sample in real time by adopting a Python library Albumentations in the training process; and inputting the defect target image in the to-be-detected sewage pipeline into the trained sewage pipeline defect model to obtain a defect detection result in the to-be-detected sewage pipeline. According to the method, the detection precision is improved, the capturing capability of target structure information under a complex background and the sensitivity to defects are enhanced, and a better detection effect is achieved.

The invention relates to the technical field of municipal engineering, and provides a sewage pipeline low-pollution water inflow and infiltration diagnosis method based on a fluorescence spectrum image, and the method comprises the steps: collecting different types of sewage and different types of low-pollution water in a sewage pipeline troubleshooting region, and according to the mixing condition of the sewage and the low-pollution water in the sewage pipeline troubleshooting region, determining whether the sewage and the low-pollution water are mixed or not; the collected different types of sewage and different types of low-pollution water are mixed according to different proportions, a three-dimensional fluorescence spectrophotometer is used for detecting a mixed water sample, a fluorescence spectrum image corresponding to the mixed water sample is obtained, and according to the fluorescence spectrum image corresponding to the mixed water sample, the sewage type and proportion and the low-pollution water type and proportion, the low-pollution water is detected. And training the water sample type diagnosis model and the water sample type proportion diagnosis model, and performing low-pollution water inflow and infiltration diagnosis on the sewage pipeline to be diagnosed based on the models. In this way, low-pollution water inflow and infiltration diagnosis can be achieved when multiple types of sewage coexist in a sewage pipeline.

The invention belongs to the technical field of sewage pipeline flow detection, and particularly relates to a sewage pipeline flow calculation method based on electromagnetic induction, which comprises the following steps: step 1, a detection mechanism is arranged between two butt-joint flowing sewage pipelines, and the detection mechanism is composed of a measuring pipe, an electrode and an excitation coil, the magnet exciting coil wraps the outer arc surface of the measuring tube. The sewage pipeline flow calculation method based on electromagnetic induction is high in measurement precision and suitable for various conductive media including sewage, corrosive liquid and a mixture containing solid particles; the measuring range is wide, and the device is suitable for measuring fluids with different pipe diameters and flow ranges. The electromagnetic flowmeter can be quickly mounted on the sewage pipe through the quick clamping mechanism, so that the mounting time is shortened, the labor intensity is reduced, and maintenance and calibration are facilitated; measurement errors caused by fluid interference are avoided by reducing accumulation of sediments, and the accuracy of circulation measurement is further enhanced by circular motion measurement of the electrodes.

The invention discloses a concrete sewage pipeline antibacterial anticorrosive coating material and a preparation method thereof, the concrete sewage pipeline antibacterial anticorrosive coating material is prepared from the following raw materials: water, water supply aluminum sludge ash, a water reducing agent, Portland cement, aggregate and antibacterial agents, the antibacterial agents are three antibacterial agents with different representativeness, respectively zinc oxide ZnO, copper phthalocyanine C32H16CuN8 and dihexadecyl dimethyl ammonium bromide C34H72BrN. Compared with a traditional concrete anticorrosive coating material, the prepared antibacterial anticorrosive coating material for the sewage pipeline has the advantages that the water supply aluminum sludge ash modified cement-based material is used as a carrier, and the antibacterial agent is used as a functional component to be doped to prepare a functional antibacterial coating, so that the microbial corrosion resistance and the stability of the coating are remarkably improved, and the antibacterial anticorrosive coating material is green and environment-friendly, and has a good application prospect. The method is low in cost, simple in process and convenient to prepare.

The invention relates to the technical field of sewage treatment, in particular to a multistage fermentation acid production preposed phosphorus recovery device which comprises an aerated grit chamber, a fermentation primary sedimentation tank, a preposed sequencing batch type phosphorus removal system, a treatment and discharge system and a recovery system, the aerated grit chamber is connected with an external sewage pipeline, the fermentation primary sedimentation tank is arranged on one side of the aerated grit chamber, and the preposed sequencing batch type phosphorus removal system is arranged on the other side of the aerated grit chamber. The front sequencing batch dephosphorization system is communicated with the fermentation primary sedimentation tank, and the treatment and discharge system is communicated with one side of the front sequencing batch dephosphorization system. Compared with the prior art, by arranging the fermentation primary sedimentation tank and reasonably controlling the hydraulic retention time and the sludge concentration, not only are fermentation conditions in the tank optimized, but also unnecessary stirring energy consumption and excessive sludge treatment requirements are reduced, the operation cost is reduced, and meanwhile, the sludge load of a subsequent system is effectively reduced.

The invention relates to the technical field of water conservancy projects, in particular to a monitoring and processing system for domestic sewage of a construction site. Firstly, monitoring data of a sedimentation tank, a pipeline and a sewage treatment stage are acquired; then, the sewage inflow, the sewage flow rate, the temperature data and the sludge depth data of the sedimentation tank are analyzed, and a sedimentation tank monitoring value is obtained; evaluating the water quality data of the treated water to obtain a sewage treatment evaluation value; correcting the sewage treatment evaluation value by using flow velocity data, environment temperature data and sewage treatment equipment aging data in the sewage treatment process to obtain a sewage treatment monitoring value; then, comparing the multi-sensor data of the sewage pipeline with a corresponding standard value to obtain a pipeline leakage monitoring value; finally, monitoring information of the sedimentation tank is input into the sedimentation tank temperature prediction model, and a temperature adjustment weight coefficient is obtained; and adjusting the current temperature of the sedimentation tank by using the temperature adjustment weight coefficient.

The invention provides a tandem catalytic ozonation sewage treatment system, and relates to the technical field of sewage treatment. The device comprises a treatment assembly, an aeration assembly, a middle assembly, an injection assembly, a lifting assembly, a knocking assembly and an extrusion assembly, the treatment assembly comprises a lower shell, the upper part of the lower shell is detachably connected with an upper shell, the lower part of the upper shell is fixedly connected with a partition plate, the lower shell is provided with a sewage pipeline, and the upper part of the lower shell is fixedly connected with the partition plate. A barometer is mounted at the upper part of the lower shell; the aeration assembly is arranged at the bottom of the lower shell and is used for injecting ozone gas; the middle assembly is arranged on the outer side of the treatment assembly and is used for temporarily storing the high-pressure ozone. By arranging the lifting assembly and the knocking assembly, the knocking assembly can be driven by ozone pressure to knock the aeration disc, so that impurities attached to the aeration disc are vibrated away and taken away by ozone gas, and the aeration disc is prevented from being blocked due to impurity accumulation.

The invention provides a method for automatically identifying leakage points in a closed water test of a sewage pipeline by adopting machine vision. The method comprises the following steps: acquiring multi-modal image information in the pipeline through various sensors; constructing a three-dimensional point cloud model of the inner wall of the pipeline according to the multi-modal image information; obtaining and separating a static background and a dynamic leakage area of the image; acquiring flow velocity field information of the dynamic leakage area through a deep learning identification network; and analyzing and acquiring leakage information by combining the data information set and the flow velocity field information of the three-dimensional point cloud model. According to the method, the static background and the dynamic leakage area are effectively identified and distinguished through fusion analysis of the multi-modal images, so that the influence of environments such as pipeline stains is effectively avoided, leakage information is obtained by calculating the flow velocity field of the dynamic leakage area, and the detection accuracy is improved. Finally, the actual leakage point position of the pipeline is obtained through the image coordinates, and the method has the advantages of being accurate, efficient, convenient and rapid.

The invention relates to the technical field of ultrasonic thickness measurement, in particular to a sewage pipeline scale deposition thickness measurement method and system. The method comprises the following steps: firstly, obtaining all similar ultrasonic wave band groups among all ultrasonic wave signals at the same measuring point, and further screening out all stable wave band groups; symmetrically fusing the two ultrasonic signals of each group of preset measuring points to obtain confidence weights of fused ultrasonic signals of each group of preset measuring points under each frequency; and finally, evaluating the scale deposition thickness of the sewage pipeline based on all the fused ultrasonic signals and the corresponding confidence weights. According to the method, the stable ultrasonic wave section is determined through the similar fluctuation characteristics of the ultrasonic wave signals at the same angle and different frequencies, then the ultrasonic wave signals at the measuring points at the symmetrical angle are fused, the confidence coefficient is evaluated, and therefore the pipeline accumulated dirt thickness is accurately evaluated based on the confidence coefficient and the fused ultrasonic wave signals; the interference of other external factors on the ultrasonic signals is reduced, and the measurement accuracy of the pipeline scale deposition thickness is improved.

The invention belongs to the technical field of water environment treatment, and particularly relates to a self-cleaning device and method suitable for sewage pipeline deposition. The self-cleaning device comprises an inspection well, an upstream water inlet pipe and a downstream water outlet pipe, a horizontal supporting plate is connected to the side wall of the inspection well, and a gravity plate is placed on the upper surface of the free end of the horizontal supporting plate; the end, away from the water inlet, of the gravity plate is connected with an inclined water baffle, a water storage area is formed among the horizontal supporting plate, the inclined water baffle and the inspection well, and the middle or the lower portion of the inclined water baffle is connected with a twisting shaft. A reservoir is arranged at the top of the inclined water baffle, and a drainage hole is formed in the bottom of the reservoir; along with the change of the water volume of the water storage area, the gravity plates at the two ends of the inclined water baffle and the reservoir rotate up and down relative to the twisting shaft, so that water storage at a low water level and instant high-level drainage at a high liquid level can be realized. According to the method, the pollutant deposition amount of the sewage pipeline and the inspection well can be remarkably reduced, and meanwhile efficient pollutant transfer is achieved.

The utility model relates to the technical field of sewage treatment, and provides a glass fiber reinforced plastic intercepting well which is easy to clean and safe in cleaning process, and comprises a body and a sewage pipeline which is arranged on the side wall of the body and is communicated with the body, and a sewage discharge pipeline which can be opened and closed is further arranged below the body. The body comprises an outer shell and an overhauling pipe arranged above the outer shell, a transverse frame is further arranged above the overhauling pipe, a winding roller is movably clamped to the middle section of the transverse frame, a pull rope is wound around the winding roller, a first magnet is fixedly arranged at the tail end of the pull rope, and a magnetic attraction cleaning frame is further slidably arranged on the inner wall of the outer shell. When an adhesion layer is generated on the inner wall of the outer shell, the winding roller is reversely rotated to lower the pull rope and the first magnet, after the magnetic suction cleaning frame is attracted, the winding roller is rotated to generate upward pulling force through the pull rope to pull the magnetic suction cleaning frame upwards along the inner wall of the outer shell, and the magnetic suction cleaning frame scrapes the adhesion layer on the inner wall of the outer shell in the upward pulling process.

The invention provides a sewage pipeline clogging recognition method and system based on pressure sensors, the system comprises a sewage pipeline, a plurality of pressure sensors are arranged at the bottom in the sewage pipeline at intervals, and power and signal transmission lines of the pressure sensors penetrate out through threading holes under the pipeline and are led to the top of the pipeline along the outer wall of the pipeline. A gap between the sensor and the threading hole is sealed by a waterstop tape, a steel sleeve is arranged on the outer side of the sewage pipeline, and a gap between the sewage pipeline and the steel sleeve is filled with rubber; the power supply and the signal transmission line of each pressure sensor are connected outside the pipeline and then are connected to the wireless data transmission module, and the wireless data transmission module receives a pressure measurement signal and then uploads the pressure measurement signal to a far-end data management center through an operator network. The pressure sensor is arranged in the bottom of the sewage pipeline in advance, a liquid level meter does not need to be arranged, a sewage inspection well does not need to be built, and the pipe network clogging condition is rapidly recognized and the clogged pipe section is locked by comparing and analyzing the upstream and downstream water flow static pressure values of the pipe section.

The invention relates to the technical field of flow measurement, in particular to a sewage pipeline flow measurement device and method based on dynamic image analysis, and the device comprises a rod body, a control system, a particle release module, a track acquisition module and an image and motion analysis module; the control system is arranged at the top end of the rod body; the track acquisition modules are arranged at the bottom of the rod body; the particle release module is used for storing fluorescent particles and releasing the fluorescent particles into the sewage pipeline to be detected under the control of the control system; the track acquisition module is used for shooting the interior of the sewage pipeline to be detected to obtain an image containing fluorescent particles; the image and motion analysis module is used for analyzing the motion characteristics of the fluorescent particles released in the sewage pipeline to be detected so as to determine the flow of the sewage pipeline to be detected. Thus, the bottom of the device is placed in the sewage pipeline to be detected, the motion characteristics of the fluorescent particles are determined by shooting the tracks of the fluorescent particles, the flow of the sewage pipeline is determined, and the device is efficient, accurate and low in operation difficulty.

The invention discloses plastic pipeline particles prepared from waste incineration fly ash and a preparation method of the plastic pipeline particles. The particles are prepared from the following raw materials in parts by weight: 5-25 parts of PE, 20-100 parts of superfine calcium carbonate, 1-5 parts of needle-like wollastonite, 1-5 parts of chopped carbon fibers, 1-15 parts of rutile type titanium dioxide, 10-75 parts of waste incineration fly ash, 1-20 parts of paraffin, 0.2-5 parts of a coupling agent and 0.5-10 parts of a dispersing agent. The preparation method comprises the following steps: 1, cleaning and airing the fly ash, and crushing and grinding the fly ash into 600-1250-mesh powder P; 2, mixing the powder P with inorganic fillers such as superfine calcium carbonate at a high speed of 100-130 DEG C to obtain a composite filler M; 3, mixing and modifying the filler M with a dispersing agent and a coupling agent at a high speed to obtain modified powder MP; 4, MP, PE and paraffin are mixed and plasticized at a high speed, and single-screw extrusion granulation is performed. The particles achieve fly ash recycling and are excellent in processability, the prepared PE pipeline is high in strength, resistant to corrosion and long in service life and can be used as an industrial or municipal sewage pipeline, and the preparation method is convenient, fast and efficient.

The utility model relates to an emergency pipeline sewage desilting device, which belongs to the technical field of pipeline sewage desilting and comprises a rotating rod, a plurality of desilting rods are rotatably arranged at one end of the rotating rod, and desilting blades are respectively arranged on the desilting rods. The threaded holes are formed in the rotating rod, the positioning ring is arranged on the rotating rod in a sliding and sleeving mode, positioning holes matched with the threaded holes are formed in the positioning ring, the positioning holes and the threaded holes are fixed through positioning screws, one end of each push rod is rotationally arranged on the positioning ring, and the other end of each push rod is rotationally arranged on the positioning ring. According to the dredging device, the opening angle of the dredging blades on the dredging rods can be adjusted, the dredging diameter of the dredging device can be adjusted according to sewage pipelines with different diameters, and the adaptability of the dredging device is improved.

The invention discloses a sewage pipeline BOD biological action degradation amount detection method and system based on an SWMM model. The method comprises the following steps that a sewage pipe network model of a to-be-detected area is established in the SWMM model; arranging a plurality of monitoring points in an inspection well of the sewage pipeline in the to-be-detected area, and acquiring flow data, flow velocity data and liquid level data of the plurality of monitoring points; the flow data and the liquid level data are input into the sewage pipe network model, and the average wetted perimeter area of each pipe section in the monitoring time period is obtained; at least one pipe section is selected, and the methane yield and the hydrogen sulfide yield of the pipe section are obtained based on the average wetted perimeter area of the pipe section; and calculating the BOD biological action degradation amount of the sewage pipeline based on the methane yield, the hydrogen sulfide yield and the average wetted perimeter area of each pipe section. The method solves the problem that a current calculation method for the BOD biological action degradation amount of the sewage pipeline is not accurate.

The invention discloses a sewage pipeline flow detection device, and relates to the field of flow detection. The sewage pipeline flow detection device comprises a pipe section type flow meter, the pipe section type flow meter is connected with a sewage pipeline through a flange, an outer clamping type flow meter is installed on the outer side of the sewage pipeline, the pipe section type flow meter comprises a pipe section shell and a control terminal, two sensor shells are arranged on the outer side of the pipe section shell, and the control terminal is connected with the two sensor shells. The interiors of the two sensor shells are each provided with an intrusive sensor, the ends of the intrusive sensors extend towards the interior of the pipe section shell, and the intrusive sensors are connected with an outer wall cleaning unit and an end face cleaning unit. According to the sewage pipeline flow detection device, when the control terminal detects that the detection difference value of the pipe section type flow meter and the outer clamping type flow meter exceeds the preset threshold value, the outer wall and the end face of the intrusive sensor are cleaned, and the detection precision is recovered.

The utility model discloses a sewage pipeline capable of preventing clogging at a bending position, and particularly relates to the technical field of clogging prevention devices, the sewage pipeline comprises a first water pipe, one end of the first water pipe is fixedly connected with a bent pipe, one end of the bent pipe is fixedly connected with a second water pipe, a cleaning mechanism is arranged in the bent pipe, and a water spraying assembly is arranged in the cleaning mechanism. And the cleaning mechanism comprises a rotating shell, rotating columns are fixedly connected to the two sides of the rotating shell, one end of each rotating column is rotationally connected with the bent pipe, and a plurality of scraping plates are fixedly connected to the surface of the rotating shell. According to the utility model, impurities deposited on the elbow pipe can be dredged regardless of the water flow, the pipe wall can be effectively scraped, sludge and solid impurities such as fibers and hairs attached to the pipe wall can be scraped off, the scraper and the interior of the pipeline body can be scoured, and the sludge scraped off by the scraper can be timely flushed away; and the device goes deep into gaps and corners which are difficult to touch by the scraper blade, so that fine particles and viscous substances are dispersed.

The present invention relates to the technical field of experiment apparatuses for concrete wastewater pipe corrosion. Disclosed are a concrete testing apparatus and method based on a load-corrosion coupling effect. The apparatus simulates a real environment for a wastewater pipe on the basis of a load-corrosion coupling effect, and also applies a mechanical load and a chemical corrosion effect to a concrete test block, and accelerates the corrosion of the concrete test block by means of exposing the concrete test block, thereby implementing research on mechanical characteristics of a concrete material under the load-corrosion coupling effect, and providing a sample basis for evaluation in regard to research on aging characteristics of the concrete wastewater pipe. Further disclosed in the present invention is a concrete testing method based on the testing apparatus.

The invention relates to the technical field of air pollution control, and discloses a process for treating odor generated in organic industry by a direct absorption method, which comprises the following steps: S1, feeding odor into cooling and dehumidifying equipment through negative pressure, condensing most of steam in waste gas into water, and recycling condensed water; s2, a fan is arranged on a gas pipeline between cooling and dehumidifying equipment and an absorption tower, the subsequent higher pressure difference can be overcome, and under the low-humidity and low-temperature working condition, the fan feeds gas into the absorption tower; s3, gas enters an absorption tower through a fan, and a gas pipeline arranged at the top of the absorption tower is connected with a chimney for discharging; and S4, discharging the cooling circulating water and the absorption liquid to a sewage pipeline through an overflow port, and sending the cooling circulating water and the absorption liquid to a sewage treatment unit. In the operation process, frequent replacement of adsorption materials or complex equipment maintenance is not needed, the investment of manpower, material resources and financial resources for long-term operation is reduced, and effective treatment of odor can be achieved in the organic industry with low cost.

The utility model relates to the technical field of sewage treatment, in particular to efficient and environment-friendly sewage treatment equipment for a coal mine, which comprises two connecting pipes, connecting flanges are fixedly sleeved at one ends, deviating from each other, of the two connecting pipes, and a rotating mechanism is arranged between the two connecting pipes. According to the sewage treatment device, the two connecting pipes are connected with the sewage pipeline through the connecting flanges, the rotating drum is located between the two connecting pipes, the driving motor is started to drive the adjacent rotating drum to rotate through the gear and the gear ring, and the rotating drum drives the two adjacent semicircular plates to rotate to be separated from the adjacent communicating openings; when one rotary drum is blocked, the driving motor can be started to enable the rotary drum to recover to be closed, and then the rotary disc is rotated to enable the other rotary drum to move to the position between the two connecting pipes to filter the sewage, so that the sewage in the pipeline can be filtered by the filter drum. A user can manually clean or replace the blocked filter cartridge, so that the use of the user is facilitated.

The utility model relates to the field of filter screens, provides a filter screen with an automatic dredging function for sewage filtration, and aims to overcome the defect that the conventional filter screen cannot be automatically dredged, the filter screen comprises a sewage pipeline and a filter screen, the filter screen is arranged in the sewage pipeline, a cleaning brush is tightly attached to the front side of the filter screen, and a baffle is welded on the water inlet side of the sewage pipeline. A flow guide pipe penetrates through the upper side of the baffle, a rotating shaft is rotationally arranged in the sewage pipeline and located between the baffle and the filter screen, paddles are welded to the rotating shaft, a lifting mechanism for driving the cleaning brush to ascend and descend is arranged on the outer side of the sewage pipeline and comprises a lead screw, and a linkage mechanism is arranged between the rotating shaft and the lead screw. According to the utility model, the washing brush can be driven to lift in a reciprocating manner to brush impurities on the surface of the filter screen by utilizing the flushing force of sewage flowing in and a mechanism, the filter screen can be automatically cleaned and dredged, time and labor are saved, the cost is saved, the filtering work can still be carried out in the cleaning process, and the sewage filtering efficiency is prevented from being reduced.

The utility model discloses a sewage monitoring device for water quality environment management, which comprises a current meter body and further comprises a floating installation mechanism, the floating installation mechanism comprises a U-shaped pipe clamp A, an L-shaped pipe, a vertical guide pipe, a guide pipe, a U-shaped pipe clamp B, a triangular cover, a floating block, a connecting rope and a limiting ring, the current meter body is pressed above a long pipe body of the L-shaped pipe, and the L-shaped pipe is connected with the vertical guide pipe. By arranging the floating mechanism for installing the flow meter body, the floating mechanism can drive the flow meter body to be installed at a sewage pipe and a detection vertical pipe, and when the water level in the sewage pipe changes, a floating block in a triangular cover of the floating mechanism drives an L-shaped pipe and the flow meter body to float and rise and fall in sewage along with the water level; when the water level in the sewage pipe changes, the flow velocity meter body is always in contact with sewage, and the flow velocity meter body can stably monitor sewage flow velocity data in the sewage pipe and transmit the sewage flow velocity data to a monitoring system of a water quality environment manager for water quality environment management analysis.

The utility model relates to water purification technical field discloses a big flow ultrafiltration membrane water purifier with self -cleaning and backwash function, including prefilter and two or more than two parallel connection's ultrafiltration membrane water purifier, water purifier purifying water export is equipped with the three ways, and the three ways are connected with the loose joint and become two water purifier's purifying water cavity intercommunication, and the water inlet and sewage water mouth of water purifier are equipped with control valve and three ways, and the three ways are connected with the loose joint and become water inlet channel and sewage water channel respectively, through closing or opening corresponding water inlet control valve and sewage water control valve, the purifying water of water purifier automatic backwash is carried out to the filter core of another water purifier, and backwash is crossed and is carried out between two or more than two water purifiers, and sewage water pipeline communication is often used water's wash vegetables pool, mop pool, such as toilet equipment, and the function of backwash and sewage water at any time is superimposed, makes filter core more clean, if maintaining properly, the service life of water purifier filter core reaches at least ten years or more.

The invention relates to the technical field of municipal drainage pipelines, in particular to a sewage pipeline structure and a maintenance method.The sewage pipeline structure comprises a pipe body, a first connecting end, a second connecting end, an elastic sealing ring and a locking mechanism, the elastic sealing ring is arranged in an annular groove of the connecting end and provided with a corrugated protrusion and a flow guide groove, and the locking mechanism comprises a locking ring and a locking sleeve; a guide structure, an elastic buckle array and a pressure color-changing anti-skid gasket are arranged; a guide plate with a pressure sensor is arranged in the pipe body, and a reinforcing rib with an access hole is arranged on the outer wall. Reliable sealing, operation state monitoring and convenient overhauling can be achieved, and the safety and maintenance efficiency of a sewage pipeline system are effectively improved.

The invention discloses a treatment device for recovering 1, 3-cyclohexanedione from crystallization centrifugal mother liquor, which comprises a dissolving kettle, a discharge port of the dissolving kettle is communicated with a bleaching kettle, a discharge port of the bleaching kettle is communicated with a washing kettle, a discharge port of the washing kettle is communicated with a crystallization kettle, a discharge port of the crystallization kettle is communicated with a centrifugal machine, and a discharge port of the centrifugal machine is communicated with a drying machine. Solid-phase residues are discharged into a dissolving kettle, deionized water is added, stirring is started, then a proper amount of bromine and hydrogen peroxide are added, and materials in the kettle are heated; and transferring the materials in the dissolving kettle into a bleaching kettle. And after the bleaching agent is treated, the feed liquid in the bleaching kettle body is transferred into a washing kettle. The water-washed feed liquid is layered, a water phase layer enters a sewage treatment system through a sewage pipeline, and an organic phase layer enters a crystallization kettle through a delivery pump. And the cooled and crystallized feed liquid enters a centrifugal machine through a delivery pump. And after separation by a centrifugal machine, drying a solid-phase part by a drying machine, and packaging. In order to overcome the defects in the prior art, 1, 3-cyclohexanedione is recycled through the recycling device, pollution to the environment is reduced, and resource waste is avoided.

The invention relates to a device for the rehabilitation of the outlet area (20) of an inlet pipe (2) opening into a walkable sewer pipe (1), comprising an annular flexible pressure plate (5) for applying to an inner surface (10) of the sewer pipe (1) surrounding the outlet area (20) of the inlet pipe (2) and a sealing bladder (4) intended for insertion into the inlet pipe (2) and temporarily expandable, which has a tensioning device at an end (40) not pointing into the inlet pipe (2), by means of which a pressing force can be generated on the pressure plate (5) in the direction of the inner surface (10) of the sewer pipe (1), wherein the pressure plate (5) has at least one injection opening (52) extending through the pressure plate for a filling material.

The invention discloses an advanced sewage treatment device which comprises a sewage pipeline, an outlet of the sewage pipeline is connected with a filtering device or a settling pond, the sewage pipeline sequentially comprises an inlet section, a pH adjusting section and a flocculation section in the water flow direction, the inlet section is provided with a pH detection head and a flow meter, and the side face of the pH adjusting section is connected with an acid liquor mixing pipe and an alkali liquor mixing pipe. The acid liquor mixing pipe and the alkali liquor mixing pipe are connected with a first electromagnetic flow valve, a stirring mechanism is arranged in the pH adjusting section on the rear sides of the acid liquor mixing pipe and the alkali liquor mixing pipe, the side surface of the flocculation section is connected with a flocculant mixing pipe, the flocculant mixing pipe is connected with a second electromagnetic flow valve, and a stirring mechanism is arranged in the flocculation section on the rear side of the flocculant mixing pipe. According to the sewage treatment device, in the sewage treatment process, sewage with different pH values can be finally neutralized into pH values suitable for flocculating agent reaction after entering the sewage pipeline, so that continuous reaction is realized, and the sewage treatment cost is effectively reduced.

The present invention discloses a concrete test device and method based on a load-corrosion coupling action, relating to the technical field of corrosion experimental devices for concrete sewage pipelines. The device simulates a real environment of a sewage pipeline based on the load-corrosion coupling action, applies mechanical load and chemical corrosion effects to a concrete specimen simultaneously, and accelerates a corrosion effect on the concrete specimen by exposing the concrete specimen. According to the device, researches on mechanical properties of a concrete material under the load-corrosion coupling action are realized, and an assessment sample basis is provided for researches on aging characteristics of the concrete sewage pipelines. The present invention further discloses a concrete test method based on the aforementioned test device.