814 results about "Suspended particles" patented technology

A wearable device consists of a smart band and a display unit. The smart band comprises a microbial biosensor, a particulate matter sensor, an enviro sensor, a physiological sensor, a biofluid sensor, a biokinetics sensor, a lifestyle sensor, and a single board computer. The microbial biosensor detects, measures, and monitors microorganisms, and a sterilizer kills pathogens. The particulate matter sensor detects, measures, and monitors a set of suspended particles in the surrounding air. The enviro sensor monitors environmental conditions surrounding the user. The biofluid sensor detects, measures, and monitors biological fluid parameters of the user. The physiological sensor detects, measures, and monitors physiological parameters of the user. The biokinetics sensor detects, measures, and monitors physical activities of the user. The lifestyle sensor detects, measures, and monitors healthy lifestyle activities of the user. The wearable device allows for continuous monitoring of user health for accurate clinical outcomes and wellness programs.

The invention provides a water turbidity measurement method and system for water ecological investigation, and the method comprises the steps: determining the scattering difference characteristics of suspended particles in a to-be-detected water body to light through collecting a scattered light signal of the to-be-detected water body and a light signal of a corresponding environment background of the to-be-detected water body; determining a disturbance error of the flow velocity in the to-be-measured water body during measurement of the suspended particles; determining the turbidity gradient of the suspended particles in the to-be-detected water body based on the turbidity inversion model in combination with the scattering difference characteristics and the disturbance error; determining the viscosity state of the water body power in the to-be-detected water body, and determining the attenuation relationship between the suspended particles in the to-be-detected water body and the temperature according to the viscosity state and the fluctuation characteristics of the ambient temperature around the to-be-detected water body; and dynamically compensating the turbidity gradient of the suspended particles in the to-be-detected water body through the attenuation relationship to obtain a dynamic turbidity value of the to-be-detected water body. By adopting the scheme of the invention, the influence of multi-parameter dynamic interference on the measurement of the water turbidity in the to-be-measured water can be reduced.

The invention provides an underwater image recognition method based on deep learning, and relates to the technical field of information, and the method comprises the steps: preprocessing an original image, recognizing image texture interference caused by the density of suspended particles in an interfered region, separating a noise signal, and obtaining a first processed image; performing deep analysis on the multi-scale feature response values and the key feature points in combination with an underwater target recognition task, and judging the category and position information of the target object to obtain a preliminary recognition result; comparing the preliminary identification result with an actual marine environment condition to obtain a matching degree between the identification result and an expected target feature, and if the matching degree is lower than a preset matching threshold value, adjusting a scale weight parameter and a feature point screening threshold value to obtain corrected identification data; and analyzing changes caused by environmental condition fluctuation according to the corrected identification data, generating target identification output, and determining the accurate position and category information of the underwater target through confidence weighted fusion and coordinate precision correction processing of the identification data.

The invention relates to the technical field of sewage detection, provides an intelligent detection method for suspended particles in coking sewage based on image deep learning, and aims to solve the problems of detection lag and low precision in the prior art. According to the technical scheme, the method comprises the following steps: synchronously acquiring sound wave and image data through a high-frequency ultrasonic transducer and an industrial camera, and extracting acoustic parameters and optical characteristic parameters; using a dual-channel convolutional neural network to fuse features, and combining a cross-modal attention mechanism to perform dynamic weighting; and outputting a particle concentration classification result and a particle size distribution prediction value through a multi-task learning model, and performing online learning to compensate environmental interference factors. The device is mainly used for realizing real-time and high-precision suspended particle monitoring and automatic process adjustment of coking sewage treatment.

The invention belongs to the technical field of oil-gas-water separation equipment, and discloses an ultrasonic detonation rotational flow microbubble flotation device which comprises a vertical container tank with inner and outer stepped double-barrel design and a separation inner barrel, an oil gathering umbrella is arranged on the upper portion of the interior, an oil discharge connector is arranged on the outer wall of one side, and surrounding physical demulsification coalescence filler is arranged on the upper portion of the area between the tank and the inner barrel. And the lower part of the separation inner cylinder is provided with a reverse symmetrical double-tangential rotational flow inlet, the bottom of the separation inner cylinder is externally provided with a purified backflow water inlet and is communicated with the purified water diversion outlet in a process manner, and the bottom of the separation inner cylinder is internally provided with a gas-water mixer and an ultrasonic knocker. By combining ultrasonic cavitation, rotational flow centrifugation, micro-nano bubbles and physical coalescence demulsification technologies, the diameter of the bubbles is reduced by 15 microns or below through the ultrasonic detonation cavitation effect, fine oil drops and suspended particles which are difficult to treat through traditional flotation and are 10 microns or below can be captured, the method is suitable for multi-phase separation of discrete high-concentration fine pollutants, and the flotation efficiency is improved. Complex separation scenes such as oily sewage, micro-plastics and mineral flotation can be treated.

The invention provides a submarine sedimentary environment dynamic change characteristic inversion method based on three-phase potential. The method comprises the steps of in-situ data processing, electrical signal calibration, mathematical model establishment and dynamic change analysis. A seabed electrode array is arranged, signals of natural potential, resistivity, oxidation-reduction potential and the like are collected in real time, and seabed sedimentary environment characteristics such as seabed interface position, suspended particle concentration, sediment density, porosity, water content and the like are deduced by adopting an inversion algorithm. The method is combined with multi-frequency signal analysis, and can monitor seabed sedimentary environment changes in real time, identify sediment movement and the like. Compared with the prior art such as CN118153411B and CN110411923B, more abundant inversion contents are covered, the monitoring precision and efficiency are improved through the complementarity of potential signals, and higher adaptability and reliability are achieved. The method has low equipment and maintenance cost, is suitable for large-range and long-term monitoring, and can provide an innovative solution in the fields of deep sea monitoring, environment evaluation, resource exploration and the like.

The invention relates to the technical field of laser particle size analyzers, in particular to a laser particle size analyzer with a double-ultrasonic structure, which comprises a particle size analyzer body, a sample pool is arranged on the particle size analyzer body, a sample dispersion mechanism for crushing particle blocks is arranged in the sample pool, and a stirring auxiliary mechanism for preventing suspended particles from settling is arranged above the sample pool. The stirring auxiliary mechanism can push the particles to a sound field strong area of the sample dispersion mechanism so as to improve the dispersion efficiency, and a splash-proof covering mechanism is arranged at the upper end of the sample pool. By arranging the sample dispersion mechanism and adopting a mode of combining phase orthogonality and material orthogonality layout, a stable three-dimensional acoustic vortex can be formed in the sample pool, and the coverage range of the ultrasonic cavitation effect can be obviously improved, so that the particle dispersion uniformity is improved, and the particle dispersion efficiency is improved. A detachable low-frequency ultrasonic vibrator is adopted at the bottom, so that the penetrating power of a high-concentration and high-viscosity sample is further enhanced, and dispersion dead angles can be effectively eliminated.

The invention relates to the technical field of wastewater treatment, and discloses an industrial wastewater treatment device which comprises a base, the top of the base is fixedly connected with a sewage tank, the top of the base is fixedly connected with a motor, the inner wall of the sewage tank is provided with a cleaning mechanism for cleaning residues, and the inner wall of the sewage tank is provided with a pushing mechanism for stacking the residues. And the inner wall of the sewage tank is fixedly connected with an elastic telescopic rod I. The sewage treatment device can effectively reduce the peculiar smell of wastewater, can adsorb organic matters, heavy metal ions and soluble pollutants in the wastewater, can further improve the subsequent treatment efficiency of the wastewater, can further improve the water quality, and has a good application prospect. A reaction agent can enter the sewage tank through the opened opening and is in contact with the wastewater, so that fine suspended particles in the wastewater can be gathered into relatively large particles, the subsequent treatment efficiency is improved, and the subsequent treatment speed is reduced.

The invention discloses an ecological fish culture system capable of automatically purifying water. Comprising a user terminal, a cloud data center platform, a purification system, a real-time water quality detection module, a data acquisition and transmission module, an intelligent data analysis and management module, a remote monitoring and early warning module, an abnormal early warning processing module, a water purification linkage module, a data analysis visualization module and a culture system. Compared with the prior art, the aquaculture system has the advantages that the aquaculture system is added, circulating aquaculture of ecological fishes is achieved, a filter tank is established through a biological filter tank module in the aquaculture system by means of microbial populations, and the ecological fishes can be cultured in a circulating mode through the biological filter tank module in the aquaculture system, so that the aquaculture efficiency is improved, and the aquaculture cost is reduced. Harmful substances are converted into harmless substances through specific microbial populations, the harmful substances in water are absorbed by aquatic plants through the multi-stage purification module, and suspended particles and impurities in the water are filtered through mechanical objects such as a filter screen and filter cotton.

The invention discloses a seawater desalination treatment system and method based on a penetration method, and particularly relates to the technical field of seawater desalination treatment.The seawater desalination treatment system is provided with an online monitoring module, and various indexes in the seawater desalination treatment process are monitored through a multi-source sensor; a seawater pollution treatment module is arranged to remove suspended particles and pollutants in seawater; a seawater desalination treatment module is arranged for deep desalination; setting an equipment management module to judge whether equipment maintenance is needed or not based on the real-time operation data of the equipment; a semi-permeable membrane loss prediction module is arranged for semi-permeable membrane loss prediction; setting a semi-permeable membrane maintenance control module to automatically match a corresponding maintenance strategy according to the predicted membrane loss degree; a forward osmosis and reverse osmosis coupling process is combined, so that the desalination rate and the energy consumption efficiency ratio are improved, and the service life of the semipermeable membrane is effectively prolonged; an intelligent monitoring-prediction-control system is constructed, and the stability and reliability of the technological process are guaranteed.

The invention relates to the technical field of ocean structure monitoring, in particular to a method for monitoring the scouring degree of a pile foundation of an offshore wind power station through bubble tracing, which comprises the following steps of: 1, constructing a bubble feature data acquiring an underwater image, manually segmenting and selecting key bubbles, extracting contour features of the key bubbles and expressing the contour features by vectors, a Zernike moment is used for grouping according to shapes, and a bubble feature database is constructed; and 2, identifying underwater bubbles: obtaining an underwater background image, constructing a dynamic background, obtaining an image containing suspended particles, extracting a foreground main body through a background subtraction method, comparing contour features of the foreground main body with a bubble feature database, and screening out the bubbles. By introducing an innovative method combining image recognition, feature modeling and physical inversion, the key problems of bubble misjudgment, track loss, inaccurate flow velocity and the like in a traditional bubble tracing technology are effectively solved, and high-precision, low-cost and automatic monitoring of the scouring process of the offshore wind power pile foundation is achieved.

The invention relates to the technical field of AI cluster servers, in particular to a low-temperature running AI cluster server and a using method thereof.The method comprises the following steps that S1, the AI cluster server running at the low temperature through a cold plate is obtained, the cold plate is internally provided with a multi-parameter sensor unit for detecting temperature T, pH value, conductivity EC, suspended particle concentration SC and oxidation reduction potential ORP data influencing the performance of the cooling liquid; s2, carrying out noise removal and abnormal value processing on the obtained data of the temperature T, the pH value, the conductivity EC, the suspended particle concentration SC and the oxidation reduction potential ORP; s3, dividing the data set preprocessed in the step 2 into a training set and a test set, and constructing an LSTM model.According to the method, the health state of the cooling liquid in the AI cluster server running at the low temperature can be accurately and timely monitored and predicted, the time node of liquid cooling replacement can be accurately judged to the maximum extent, and the accuracy of liquid cooling replacement is improved. The stable operation of the server is further ensured; and the maintenance cost and risk are reduced.

The invention relates to the technical field of water treatment, in particular to a composite flocculant for tunnel construction wastewater treatment and a preparation method thereof. The method comprises the following steps: carrying out a reaction on triethanolamine and isocyano ethyl methacrylate to prepare tertiary amine acrylate; reacting tertiary amine acrylate with methoxyl-polyethylene glycol-chlorine to prepare polyethylene glycol modified quaternary ammonium salt acrylate; further reacting with methyl dichlorosilane to prepare a modifier; and compounding the modifier with hydrotalcite, sodium silicate and an iron-magnesium-calcium mixed solution to prepare the composite flocculant. The flocculant realizes efficient flocculation and pH regulation through mechanisms such as electric neutralization and adsorption bridging, has the characteristics of quickly gathering suspended particles, reducing sludge yield and improving floc compactness and dehydration performance, is suitable for treatment of high-concentration suspended solids and slightly alkaline wastewater, shows comprehensive advantages of high efficiency, economy and environmental protection, and has wide application prospects. The field treatment requirements of tunnel construction wastewater are met.

The present invention relates to the technical field of wastewater treatment, and specifically, to a wastewater treatment device and method, comprising the following steps: step 1: injecting wastewater into a flocculation scum treatment tank through a wastewater inlet; step 2: injecting an appropriate amount of composite aluminum salts and polyacrylic agents into the flocculation scum treatment tank through a metering pump to perform coagulation assistance and flocculation enhancement treatment; and starting an air pump to inject air into the flocculation scum treatment tank through an aeration pipe, forming tiny bubbles, whereby due to the flocculation effect of the flocculant, originally fine matters in the wastewater agglomerate into larger particles, forming suspended matters, and these suspended particles adhere on the bubbles and rise up to the water surface for the convenience of being processed by a foam pushing plate.

An industrialized fish and algae farming system with recirculating water and method are provided, and the system includes a fish and algae farming system, a fiber rotary disc filter system, and a magnetic loading flocculation system. In accordance with the fish and algae farming system, the aquaculture of fish and algae in the same space is achieved, the algae can transform CO2 exhaled by fish and nutrients, polysaccharides, vitamins and lipids, and then release oxygen to rapidly improve the aquaculture water quality. The fiber rotary disc filter system and the magnetic loading flocculation system can effectively remove suspended particles, grease, algae, bacteria, viruses and the like in aquaculture sewage, thus achieving the deep purification of the aquaculture sewage. The purified water quality reaches the aquaculture standards in fishery and can be directly recycled, and the whole system has no sewage discharge.

The invention discloses a ventilation method and device based on precise monitoring of the environment in a farm and a storage medium, relates to the technical field of analysis control, and constructs a three-dimensional pollution concentration field model by collecting data such as the pollution gas concentration, suspended particles, temperature and humidity, airflow velocity and the like of a manure ditch in real time and combining the spatial layout of a breeding house. On the basis of the model and ventilation constraints, a virtual ventilation strategy composed of multiple sets of air supply speeds, air directions and air opening degrees is automatically generated, simulation is conducted, disturbance scores are calculated, and the optimal strategy is selected to be applied to ventilation control. Environmental parameters are continuously monitored in the ventilation process, if it is detected that pollutants rise or temperature and humidity are abnormal, the strategy generation and screening process is automatically restarted, and dynamic closed-loop optimization adjustment of a ventilation scheme is achieved; dynamic ventilation control can be carried out according to the actual manure environment, the influence of gas backflow and pollution disturbance is reduced, and the influence on the farm environment is reduced; the influence on the growth health of livestock and poultry is reduced.

The invention relates to the technical field of a seabed substrate advanced detection device and method for a seabed mining vehicle, and provides a seabed substrate advanced detection device and method for a seabed mining vehicle, which can simultaneously obtain submarine topography and landform and detect multiple parameters of a seabed substrate. The deep sea detection system is matched with a mine car to ensure smooth proceeding of a rear mine car in deep sea bottom detection, and comprises a sea surface data processing system and a frame with the cross section in a structure shaped like a Chinese character'tian ', a master control device, a signal receiver and at least four detection modules arranged in a matrix are arranged on the frame, and the master control device is used for controlling the detection modules. The signal receiver is used for transmitting information of the detection module and the sea surface receiving device; the detection module comprises a side-scan sonar module used for rapidly obtaining the topography and landform in front, a transverse push toothed plate used for cutting into a soil body, a turbidity meter module used for measuring the concentration of suspended particles and dissolved matters in the seabed, and a pressing plate module used for obtaining the bearing capacity and the subsidence index of the seabed sediment.

A purification device for exercise environment is provided and includes a main body, a purification unit, a gas guider and a gas detection module. The purification unit, the gas guider and the gas detection module are disposed in the main body to guide the gas outside the main body through the purification unit for filtering and purifying the gas, and discharge a purified gas. The gas detection module detects particle concentration of suspended particles contained in the purified gas. The gas guider is controlled to operate and export the gas at an airflow rate within 3 minutes. The particle concentration of the suspended particles contained in the purified gas, which is filtered by the purification unit, is reduced to and less than 0.75 μg / m3. Consequently, the purified gas is filtered, and an exerciser in an exercise environment can breathe with safety.

The invention discloses a semi-dry method electrode and a preparation method thereof. The semi-dry method electrode preparation method is different from the existing wet method and dry method electrode preparation technology, on one hand, the atomized and dispersed conductive glue solution is formed by mixing the binder and the conductive agent and then atomizing and dispersing the mixture, and on the other hand, the electrode material is dispersed into suspended particles in the gas-phase medium; and then carrying out solid-liquid mixing and sedimentation on the obtained atomized and dispersed conductive adhesive solution and suspended particles to form an aggregate, collecting the obtained aggregate, spreading and compounding on a current collector, and drying. In the process of carrying out solid-liquid mixing and sedimentation on the conductive glue solution and the suspended particles to form the aggregate, as the binder can be in full contact with and coats the surface of the active material, a better bonding effect can be realized, the usage amount of a solvent and the binder is reduced while the bonding effect is ensured, less solvation is realized, and the service life of the conductive glue solution is prolonged. The energy consumption is low, the pole piece mechanical strength is higher, the loading capacity is higher, the active material structure is not damaged, and the advantages of a wet method and a dry method are achieved.

The present invention relates to the technical field of filtration, and discloses a multi-layer grading filtration apparatus for recirculating aquaculture, the multi-layer grading filtration apparatus comprises: a first filtration tank for removing large particle impurities in a water body; the filter box II is used for adsorbing soluble organic matters in water; the filter box III is used for deeply filtering the water body; the filter box IV is used for further removing suspended particles and fine impurities; collecting assemblies are arranged in the filtering boxes, and filtering assemblies with different precisions are arranged in the first filtering box, the third filtering box and the fourth filtering box respectively. Preferably, the filtering assembly comprises a filtering pipe. Through graded filtration, intelligent monitoring, self-cleaning functions and modular design, efficient purification of a water body, intelligent regulation and control of the system, convenient maintenance and stable operation are achieved, and compared with the problems of low filtration efficiency, regulation and control lagging, tedious maintenance and unstable structure in the prior art, the applicability and reliability are remarkably improved.

The invention relates to the technical field of kaolin wastewater sedimentation, and discloses kaolin processing wastewater sedimentation treatment equipment which comprises a sedimentation tank, a guide cylinder is fixedly connected to the top of the sedimentation tank, a water inlet pipe is connected to the inner wall of the guide cylinder in a penetrating mode, and two water guide frames are fixedly connected to the inner wall of the guide cylinder; kaolin wastewater is injected into a guide cylinder through a water inlet pipe, sewage enters a water guide frame along with continuous injection of the sewage, then a motor is started to drive a rotating rod to rotate, a flocculating agent is put into the sewage through a material pushing assembly, the sewage is divided into two streams through a flow dividing assembly, the two streams of sewage collide with each other, and the two streams of sewage collide with each other. The laminar flow state of water flow is destroyed, turbulent flow is formed, sewage becomes disordered, a flocculating agent and the sewage are promoted to be fully mixed, suspended particles in the sewage are mixed again, follow-up sedimentation is facilitated, and the situation that in the sewage conveying process, flocculated blocks in the sewage are separated, and sedimentation is affected is effectively prevented.

The invention relates to an image feature extraction method and system for sewage treatment. The method comprises the following steps: acquiring a plurality of underwater images Pi of a continuously shot sewage pool; taking the image with the highest definition in the plurality of underwater images Pi as a target underwater image; s2, determining the distribution uniformity of the suspended particles in the target underwater image, and returning to the step S1 when the distribution uniformity of the suspended particles in the target underwater image is smaller than a preset threshold value; and when the distribution uniformity of the suspended particles in the target underwater image is greater than or equal to a preset threshold value, extracting a feature value in the target underwater image. According to the method, multiple underwater images are continuously shot, the image with the highest definition is subjected to distribution uniformity analysis, if the partial uniformity is greater than the threshold value, suspended particles in the image are uniformly distributed, and finally, the characteristics are extracted from the image, so that the characteristic value can accurately reflect the reaction condition of sewage. And a data basis is provided for adding control of the reaction agent.

The invention discloses a sampling device for detecting the quality of white spirit, and aims to solve the problem that the content and the distribution condition of suspended particles in the white spirit cannot be comprehensively known due to the fact that only one position is used for sampling when the existing sampling device is used for sampling the white spirit. A tooth block and a push block on the two sides of a movable rod are used for driving different assemblies respectively, the push block drives a connecting valve to rotate by shifting an elastic shifting piece, a water passing hole in the push block is aligned with a liquid inlet pipe to communicate the liquid inlet pipe, it is guaranteed that white spirit enters a liquid pumping pipe through the liquid inlet pipe and the water passing hole, and the tooth block is matched to drive a connecting gear to rotate; the reciprocating frame reciprocates to drive the piston in the liquid extraction pipe to reciprocate so as to extract white spirit and inject the white spirit into the sample storage box, so that the sampling of the white spirit can be completed, multi-point sampling can be carried out at different positions in the white spirit, and the uniformity and the quality stability of the white spirit can be evaluated more accurately.

The invention provides a printing and dyeing wastewater concentration method and system, and the method comprises the steps: carrying out pretreatment on desizing wastewater, so that suspended particles and colloidal impurities in the wastewater are intercepted and adsorbed by a filtering medium; carrying out buffering and flow regulation on the pretreated wastewater, and meanwhile, carrying out heat exchange on hot condensate water generated in the printing and dyeing production process and the pretreated wastewater; raising the temperature of the wastewater to 40 DEG C or above; pressurizing the heated wastewater and then carrying out membrane separation and concentration treatment, forming dialysate by micromolecular substances and part of water, and gradually accumulating intercepted macromolecular substances to form concentrated solution; when the concentration of the concentrated solution reaches the discharge standard, pollutants are treated by adopting a chemical precipitation method and a biological treatment method, or useful substances are recycled. The wastewater concentration process flow is optimized, the wastewater is filtered, intercepted and adsorbed through multiple media, a good water inlet condition is provided for concentration treatment, modified starch and PVA in the wastewater are effectively concentrated, and the follow-up treatment volume and difficulty are reduced.

The invention relates to the technical field of industrial wastewater treatment, and discloses a wastewater treatment method in a carton printing production process, which comprises the following steps of: 1, filtering carton printing wastewater through a coarse grid and a fine grid in sequence to further remove particle suspended matters; 2, the filtered wastewater enters a regulating tank, the pH value of the wastewater is monitored through an on-line pH sensor, NaOH or H2SO4 is accurately added through an automatic control system according to the monitoring result, the pH value is regulated to 6-8, and the retention time of the wastewater in the regulating tank is controlled to be 6-8 h. Through multi-stage grid filtration and micro-electrolysis pretreatment, suspended particles and macromolecular organic matters in the wastewater are effectively removed, the load of a subsequent unit is reduced, meanwhile, the biodegradability of the wastewater is improved, favorable conditions are provided for subsequent biological treatment, the overall treatment efficiency is remarkably improved, and the risks of system blockage and equipment maintenance are reduced.

The invention provides an urban river water purification device and process, and relates to the technical field of water purification. The device comprises a cultivation floating platform, a mounting frame, a microorganism breeding box, a micro-quantum generator and other components, the cultivation floating platform carries aquatic plants and the microorganism breeding box, and plant roots absorb organic matters in a water body through photosynthesis and precipitate suspended particles; the microbial symbiotic flora is in contact with water to enhance nutritive salt conversion and organic matter decomposition through an enzymatic reaction; when water flows through the core reaction chamber, the high-frequency electrode releases energy field quantum to activate molecular oxidation reaction, and residual pollutants are intercepted by combining adsorption filler in the buffer reaction chamber. The device monitors the dynamic state of water quality in real time through the sensor, the frequency conversion module is linked to intelligently adjust the power of the high-frequency electrode, and the device has the characteristics of high efficiency, low energy consumption and high adaptability.

The invention discloses an intelligent processing method and system for urinary surgery diagnosis and treatment data, and relates to the technical field of medical data. In the data feature extraction process, the method not only covers urinary flow dynamic features such as the average fluid resistance coefficient FRavg and the pressure and flow velocity dynamic integral DPI, but also covers urinary flow dynamic features such as the average fluid resistance coefficient FRavg and the pressure and flow velocity dynamic integral DPI; and the urine conductivity change rate delta UEC, the urine suspended particle volume ratio change rate delta VSP and the functional index urination efficiency Neff of the abnormal characteristic of the urine are comprehensively extracted and analyzed. By further calculating the bladder emptying function index BEI and the urine fluid resistance index FRE, detailed evaluation of the bladder function and the urinary tract patency is achieved. On the basis of the comprehensive diagnosis score Pf1, the system can accurately identify first-level or second-level evacuation abnormity through hierarchical contrastive analysis, and triggers deep analysis when necessary, thereby providing a more comprehensive diagnosis basis for complex cases such as early bladder dysfunction or urinary tract obstruction.

The invention relates to the technical field of water purification equipment, and discloses efficient integrated water purification equipment which comprises a reaction cylinder, resistance assemblies are arranged on the upper side and in the reaction cylinder, a plurality of chemical spraying assemblies are arranged on the lower sides of the resistance assemblies, and a water inlet pipe is fixedly arranged at the upper end of one side of the reaction cylinder; a collecting barrel is fixedly installed at the lower end of the reaction barrel, a butt joint pipe is fixedly connected to one side of the reaction barrel and one side of the collecting barrel, a water drainage pipe is fixedly arranged on the other side of the collecting barrel close to the lower portion, electric valves are fixedly installed on the butt joint pipe and the water drainage pipe, and a wadding discharging pipe is fixedly arranged on the rear side of the reaction barrel. And an automatic sludge discharging device is fixedly arranged on the floc discharging pipe. According to the efficient integrated water purification equipment disclosed by the invention, through overall cooperative use, the sleeve rotates reversely, a flocculating agent and suspended particles are collided and mixed to form flocculate, and rotating water flow is quickly stopped in cooperation with stirring blades.

The invention relates to the field of polyacrylamide, in particular to functional polyacrylamide and a preparation method thereof.The functional polyacrylamide is prepared by copolymerization of an acrylamide monomer, an acryloylamino crown ether derivative, a nonionic monomer, an anionic monomer and / or a cationic monomer, an acrylamide structure and a crown ether structure are combined together to synthesize a crown ether monomer with a polymerizable acrylamide group, and the monomer is introduced into a polyacrylamide molecular chain to form a copolymerization product, so that during sewage treatment, heavy metal ions in water are effectively removed while suspended particles are aggregated as a flocculating agent, and the water quality is improved. The heavy metal content after treatment is reduced, and the water treatment agent with multiple effects is formed.

The utility model relates to a sewage treatment device. The sewage treatment device comprises a tank main body and a sludge reflux pump, the tank main body comprises a settling area and a filtering area, the sludge reflux pump is used for reusing dense medium particles, and the suspension concentration of the dense medium particles in the reactor is maintained, so that the effluent quality is ensured. Sewage enters the reaction hopper through the water inlet pipe, various colloids and suspended particles in the sewage are coagulated into large dense flocs and form a suspended sludge layer, and the sludge layer close to a normal pressure state is used for replacing a filtering medium in a conventional pressure filtering process to filter sludge; sludge is discharged into the sludge discharge area at the bottom of the reaction hopper through the sludge guide hopper and can return into the reaction hopper again through the sludge reflux pump to be fully reacted, and supernatant liquid flows to the peripheral filtering area through the top of the baffle to be filtered, so that the requirement of pretreated water quality is met. The sewage treatment device can be used for treating heavy sewage, and flocs and sludge in the reaction process are not prone to polluting and blocking parts.