208 results about "Sample water" patented technology

The invention discloses a low sample hydro-generator fault diagnosis method based on transfer learning. The method comprises the following steps: collecting a current signal, a vibration signal, a temperature signal and a voiceprint signal; executing preprocessing; performing label labeling, and dividing the data into a source domain data set and a target domain data set; operating parameters of the hydro-generator are collected, processed and combined into working condition feature vectors; training a source domain base model on the source domain data set to generate a pre-training parameter set; establishing a physical constraint module, and binding the physical constraint module with the parameter updating process of the source domain base model; initializing a transfer learning model, and calling a physical constraint module to apply constraint to generate a physically constrained transfer learning model; performing increment fine adjustment; and outputting a diagnosis result vector through the transfer learning model after increment fine tuning. According to the method, transfer learning and physical constraints are combined, hydro-generator fault diagnosis is optimized through increment fine tuning, and the method has the advantages of high precision, small sample adaptability and physical consistency verification.

The invention relates to the technical field of detection, in particular to an automatic water quality detection method and device, and the method comprises the steps: carrying out the multi-scale collection processing of a sample water body based on a distributed sensor network, extracting the spatial correlation features of multiple levels in an original data set, carrying out the feature reconstruction of the original data set according to the spatial correlation features, generating a feature enhancement data set; performing graph structuring processing according to the feature enhancement data set, and outputting to obtain a water quality feature graph; inputting the water quality feature map into a multi-task learning model, optimizing the multi-task learning model based on a loss function, and outputting a multi-parameter prediction result; performing reverse propagation processing on the multi-parameter prediction result to generate a spatial distribution diagram of the water quality parameters; and performing multi-scale pollution influence assessment based on the spatial distribution map, and generating a comprehensive water quality monitoring report. The core problem that the overall pollution condition and the dynamic change trend of the water body are difficult to accurately reflect in the prior art is solved, and the precision and practicability of water quality monitoring are remarkably improved.

The invention discloses a water pollution cross-domain traceability method based on multi-chain collaboration and stable isotope source analysis, and relates to the technical field of water environment monitoring, the method comprises the following steps: pollution source chemical fingerprint construction: collecting an environmental water sample and a potential pollution source sample in a drainage basin; adopting a mass spectrometer to detect stable isotope compositions such as delta 13C, delta 15N, delta 18O and the like in the pollutants; and performing morphological division on the pollutants by using a morphological grading extraction technology. Homology judgment precision is greatly improved through isotope and morphological analysis; cross-chain credible collaboration is achieved, multi-party data interaction is achieved, and timeliness and accuracy of pollution tracing are guaranteed; the space-time model traceability is combined with an evolution path and gridding mapping, so that the pollution inversion accuracy is improved; and ecological compensation support provides a quantitative basis for pollution intensity and diffusion range so as to support a compensation model.

The invention discloses a quantitative evaluation method and system for leakage of a municipal drainage pipe network, and relates to the technical field of water information processing. A quantitative evaluation method for leakage of a municipal drainage pipe network comprises the following steps that S1, sewage quality samples of all sewage sources of a target sewage plant service area are collected, and the sewage sources comprise raw sewage of the target sewage plant service area and external water of the target sewage plant service area; s2, constructing a stable isotope source feature library of the external water and the raw sewage based on the sewage quality sample; s3, collecting a sewage sample at the water inlet end of the target sewage plant to obtain stable isotope abundance data; s4, on the basis of the stable isotope abundance data and the water source analysis model, obtaining the contribution ratio of each sewage source; and S5, based on the total amount of sewage treated by the target sewage plant and the contribution ratio of the sewage source, obtaining the pipe network leakage amount. Through the scheme, quantitative evaluation of leakage of the municipal drainage pipe network can be realized.

The invention relates to the technical field of sewage detection, in particular to an industrial wastewater sudden pollution emergency sampling detection device which comprises a detection box, an extraction unit for sampling water at different water levels is arranged on one side of the bottom of the detection box, and a drainage pipe for discharging detected water is further arranged at the bottom of the detection box. A rotating frame is rotatably mounted at the bottom of an inner cavity of the detection box through a motor, a central pipe is fixedly mounted at the top of the rotating frame, the extraction unit can extract wastewater at different depths in a multi-point manner, and when an additive needs to be added into the wastewater, the clamping assembly is in linkage with the feeding assembly, the additive is automatically and quantitatively added, volatilization, oxidation or microbial degradation is prevented, and the detection efficiency is improved. During direct detection, clamping and stirring of the clamping assembly are canceled to prevent precipitation, the process is simplified, the center pipe drives the rotating frame to stir, impurity sedimentation is avoided, the detection stability is guaranteed, manual intervention is reduced, and efficient and accurate analysis is achieved.

The invention discloses a water quality COD analysis device, and relates to the technical field of COD water quality detectors, the water quality COD analysis device comprises a COD water quality detector body, a calibration mechanism is arranged on the outer side of the COD water quality detector body, a wiping mechanism is arranged on the outer side of the COD water quality detector body, the calibration mechanism can detect a plurality of detection samples after sample water calibration equipment is utilized, and the wiping mechanism is arranged on the outer side of the COD water quality detector body. The wiping mechanism can wipe the surface of a test tube of a detection sample, the calibration mechanism comprises a first stepping motor, the outer surface of the first stepping motor is fixedly connected to the inner wall of the COD water quality detector body, the output end of the first stepping motor is fixedly connected with a turntable, and the outer surface of the turntable is fixedly connected with a plurality of same rectangular frames; the inner wall of each rectangular frame is rotationally connected with a rubber barrel, stains and water stains on the surface of the test tube of the detection sample can be cleaned by utilizing the wiping rings, and the problem that the detection efficiency is reduced due to the fact that the test tube of the sample to be detected needs to be manually wiped before detection is solved.

The invention relates to a portable hydrogen conductivity measuring device based on electrodeionization. The portable hydrogen conductivity measuring device comprises a sampling detection subsystem, an electrodeionization subsystem, a measuring subsystem and a processor, the sampling detection subsystem is communicated with the electrodeionization subsystem and the measurement subsystem and is used for controlling the temperature, the pressure and the flow of sample water flowing into the electrodeionization system; the electrodeionization subsystem is communicated with the measurement subsystem and is used for removing cations in the sample water; the measurement subsystem is communicated with the electrodeionization system and is used for accurately measuring the conductivity, namely the hydrogen conductivity, of the sample water subjected to EDI treatment in real time; and the processor is used for providing a stable excitation signal for the conductivity electrode, acquiring an original resistance or conductivity signal and a temperature signal of the electrode, executing a temperature compensation algorithm to obtain a hydrogen conductivity value at 25 DEG C, outputting a final result to the display screen, and transmitting the final result to an external system. The invention also discloses a corresponding measurement method, electronic equipment and a computer readable storage medium.

The utility model discloses a real-time water quality sampling device, and particularly relates to the technical field of water quality samplers, the real-time water quality sampling device comprises a box body, the inner bottom wall of the box body is provided with a fixing frame, the inner wall of a bearing ring is provided with an air cylinder, the inner wall of a first push rod is in sliding connection with an adjusting rod, and the inner wall of the adjusting rod is in bearing connection with a second transmission rod; an adjusting ring is fixedly connected to the outer wall of the second transmission rod, and a sampling bottle is mounted on the inner bottom wall of the placement disc. According to the real-time water quality sampling device, through the arrangement of the air cylinder, a second push rod and an adjusting ring, the problem that an existing real-time water quality sampling device cannot sample water quality at different time periods at the same depth according to requirements is solved, so that a worker cannot rapidly sample the same water quality at different time periods; the efficiency of sampling the same water quality at different time periods by workers is improved, and meanwhile, the accuracy of analyzing the same water quality at different time periods by subsequent workers is guaranteed.

The invention provides a blueberry substrate cultivation pH value detection device, and relates to the technical field of pH value detection devices. A leakage control part is arranged above the detection part; a material soaking part is arranged above the leakage control part; an external control part is arranged above the material soaking part; the inner plug block is matched with the conical surface of a conical groove in the top of the communicating leak hole, contact type sealing is achieved, an outer adjusting ring and an inner adjusting frame are of an integrated connecting structure, an operator can drive the inner adjusting frame and a top cover frame to synchronously move upwards only by shifting the outer adjusting ring upwards, the communicating leak hole is communicated, sample water is conveniently conveyed and treated, the detection process is simplified, and the detection efficiency is improved. The blueberry substrate cultivation pH value detection device has the advantages that the blueberry substrate cultivation pH value can be conveniently detected, and the problem that due to the fact that sampling, proportioning, mixing, detection and other processes need to be operated and treated in various containers, the number of tools needed in the detection process is large, the steps are tedious, and detection treatment is inconvenient is solved.

The application relates to the technical field of sampling devices, in particular to a single-wall carbon nanotube sampling device convenient to carry, which comprises a sampling bucket, a containing cavity is formed in the middle of the sampling bucket, a sampling rod one and a sampling rod two are matched arranged on the sampling bucket, the sampling rod one and the sampling rod two are mutually inserted, and the device is characterized in that the device further comprises a buoyancy mechanism and an adjusting mechanism, a float ball of the buoyancy mechanism controls a one-way valve one, sampling is automatically realized after the sampling bucket reaches the middle position of a sampling water area, the adjusting mechanism is used for adjusting the sinking distance of the sampling bucket according to the depth of different water areas, an operator can deliver the sampling bucket to the relatively central water area on the bank of the water area to realize rapid and effective sampling, and rapid adjustment can be realized according to the depth of the water area.

This invention discloses a flow velocity adaptive simultaneous stratified algae sampler for different water depths, comprising a vortex compressor module, which includes a lower shell and an upper shell. The upper shell includes a top plate with a filter plate fixed to its outer periphery and a stationary vortex disk fixed to its bottom surface. An outlet is formed at the center of the top plate, and a continuous sampling structure is installed in conjunction with the outlet. A first waterproof motor is fixed inside the lower shell, connected to a moving disk, and a moving vortex disk that cooperates with the stationary vortex disk is fixed to the top surface of the moving disk. Both the stationary and moving vortex disks are made of filter plates. An inlet is formed on the upper shell, and solenoid valves are installed on both the inlet and outlet. A flow meter is also installed at the inlet. This invention can concentrate algae, thereby achieving continuous large-volume algae sampling, overcoming the shortcomings of existing sampling devices that are limited by container volume, resulting in small sample volumes and the inability to continuously sample and obtain dynamic change data.

The utility model discloses a multipath control water outlet detection device, which comprises a water storage tank, a test control pump, a first control valve body, a second control valve body, a third control valve body, a controller, a detector and a sampling port, and is characterized in that the water storage tank is connected with the test control pump, and the test control pump is connected with the detector through the first control valve body; a controller of the detection equipment for multi-path control water outlet controls a test control pump and a first control valve body to work so as to convey water in a water storage tank to a detector, the detector detects sample water and then conveys the sample water to a second control valve body, and the second control valve body and the second control valve body can convey the water into the water storage tank for recycling. In addition, the second control valve body can automatically open and close the material taking opening to convey sample water so as to allow workers to sample, the controller automatically controls detection, manual water pipe extraction, manual water drainage, manual timing, manual measurement and other operations are not needed, measurement and use are facilitated, and deviation caused by manual measurement is reduced.

The invention discloses a fluid dynamic pressure-based pipeline type water quality in-situ monitoring device, which comprises: a joint, one end of which is fixed with a water pipe, and the joint is internally provided with a sampling water inlet pipe and a sampling water outlet pipe; the pressure compensation container is fixed with the other end of the connector and is divided into a low-pressure cavity and a high-pressure cavity by a partition plate, the low-pressure cavity is communicated with the water pipe through a sampling water inlet pipe, and the high-pressure cavity is communicated with the water pipe through a sampling water outlet pipe; the steady flow pool is provided with a plurality of monitoring sensors, the steady flow pool is respectively communicated with one ends of a plurality of pairs of steady flow water inlet pipes and steady flow water outlet pipes, the other ends of the steady flow water inlet pipes are respectively communicated with the low-pressure cavity, and the other ends of the steady flow water outlet pipes are respectively communicated with the high-pressure cavity; the pressurizing device is fixed with the pressure compensation container, and the pressurizing device can pressurize the water flow input by the steady water outlet pipe and can output the water flow through the sampling water outlet pipe. The device has the beneficial effects of being simple in structure, low in cost, convenient to use and high in working efficiency.

A control assembly for an appliance includes a control panel for the appliance. The control panel includes inputs for controlling the appliance. The control assembly includes a control circuit board coupled to the control panel. The circuit board configured to be operably coupled to working components of the appliance to control operation of the appliance based on the inputs from the control panel. The control assembly includes a detergent sensor configured to sense wash characteristics of water in the appliance. The detergent sensor includes a near infrared spectroscope (NIRS) for determining optical properties of a sample of the water. The detergent sensor performs a chemical analysis to determine the contents of the sample based on the optical properties. The control circuit board is configured to control the working components of the appliance based on the chemical analysis performed by the detergent sensor.

This invention belongs to the field of water quality testing technology, and specifically relates to a water quality testing device for industrial circulating water. It includes a protective cylinder placed inside a water tank, and a climbing frame erected on the water tank to support the protective cylinder. It also includes several collection cylinders placed inside the protective cylinders with their upper openings open; a sampling cylinder movably placed inside the collection cylinders via a suspension frame; a supporting and guiding component placed inside the collection cylinders, with its water collection groove communicating with a water collection hole on the protective cylinder; and a guiding and venting component placed inside the sampling cylinders, allowing the sampling cylinders to communicate with the water collection groove of the supporting and guiding component through the guiding and venting component. This invention enables the water quality testing device to simultaneously sample water from different water layers within the water tank, and also to perform individual automatic sampling and testing of water from different water layers within the water tank, thereby more accurately detecting the water quality status of each layer within the water tank.

A secondary pollution prevention closed water taking device relates to the technical field of sampling and comprises a water taking machine body and a telescopic rod, a conical hole is formed in the top of the water taking machine body, a first water taking pipe is fixedly mounted at the bottom hole position of the conical hole, and a second water taking pipe is slidably mounted at the bottom of the first water taking pipe in an up-down penetrating manner; a sealing pressing plate is fixedly installed on the second water taking pipe, a compression spring is connected between the upper end face of the sealing pressing plate and the upper side wall of an inner cavity of the water taking machine body, a bottom plate is installed at the bottom of the water taking machine body, and a base is fixedly installed on the upper end face of the bottom plate. The test tube for direct detection is installed in the inner cavity of the water taking machine body, meanwhile, the leakproofness of the inner cavity is guaranteed, and sampled water is directly guided into the test tube, so that the test tube can be directly taken out and sent to be detected after water taking is completed, pollution of the sampled water in the secondary transfer process is effectively avoided, and detection data are greatly guaranteed.

The invention provides a thermal power plant steam-water sampling frame and a control method thereof, and relates to the technical field of thermal power plant steam-water sampling, the thermal power plant steam-water sampling frame comprises a bottom plate, the two side surfaces of the bottom plate are divided into a first surface and a second surface, the bottom plate is provided with a mounting hole site, and the mounting hole site is provided with a functional mechanism through an adaptively connected ear plate; the function mechanism comprises a constant temperature control assembly, a flow monitoring and control assembly, a filtration monitoring and management assembly and a water quality treatment and monitoring assembly which are connected on the bottom plate through mechanical interfaces or pipeline interfaces, and the function mechanism is electrically connected with a measuring point level intelligent electric control assembly through an electric interface; the top end of the first surface is provided with a sample water inlet pipe communicated with a pipeline of the filtration monitoring and management assembly, and the bottom of the second surface is provided with a water tank for receiving waste sample water. The technical problems of high energy consumption, poor measurement stability and incapability of being fused with a DCS (Distributed Control System) are solved, and the inlet flow and the water quality of an online instrument are kept stable; the energy consumption and the maintenance cost are reduced; and linkage with the DCS is realized.

The utility model relates to the technical field of water conservancy projects, and discloses a water conservancy water sample suction pump which comprises a device body, a connecting pipe is arranged at one end of the device body, a fixed outer ring is arranged on the outer side of the device body, a stable base is arranged at the bottom end of the fixed outer ring, a protective outer frame is arranged on the outer side of the bottom end of the device body, and protective side plates are arranged on the two sides of the protective outer frame. A stable sliding plate is arranged on the surface of the bottom end of the inner side of the protective outer frame, a limiting insertion block is arranged on the portion, close to one end, of the outer side of the top end of the stable sliding plate, a protective top plate is arranged at the top end of the protective outer frame, connecting insertion rods are arranged at the four corners of the bottom end of the protective top plate, and a ventilation block is arranged in the middle of the protective top plate. According to the device, the protective outer frame, the protective top plate and the connecting clamping block are arranged, so that the device can be conveniently disassembled and transported, and the device can be conveniently and rapidly connected with an external pipeline for use.

The utility model discloses a water source sampling device for water conservancy detection. The water source sampling device comprises a mounting rack, a winding roller, a connecting belt, a sampling barrel, a telescopic rod and a limiting frame, by arranging the barrel cover, the water taking opening, the blocking air bag, the air pipe and the mounting assembly, the barrel cover and the sampling barrel are fixedly mounted through the mounting assembly, and during deep water taking, an operator injects air into the air pipe, so that the blocking air bag is expanded to block the water taking opening; the sampling barrel can dive to different depths while water does not enter the sampling barrel, when the sampling barrel reaches the needed sampling depth and needs to take water, an operator only needs to carry out anti-riding on the blocking air bag, and then water can enter the sampling barrel through the water taking opening to be sampled, so that the convenience of sampling different depths by the operator is guaranteed, and the sampling efficiency is improved. The problem that the equipment is not provided with a structure for sampling water sources with different depths, so that only the surfaces of the water sources can be sampled, and limitation is caused is solved.

The utility model discloses water quality monitoring equipment which comprises a sampling box body, and a distribution valve, a moving mechanism, a detection pool, a submersible pump and a plurality of sample reserving bottles are arranged in the sampling box body; water inlets of the distribution valves are communicated with sampling water pipes; the pipe body of the sampling water pipe extends out of the sampling box body, and the extending end is communicated with a submersible pump; two water outlets of the distribution valve are respectively communicated with a detection water pipe and a reserved sample water pipe, the other end of the detection water pipe is communicated with a water inlet of the detection pool, and the other end of the reserved sample water pipe is arranged on the moving mechanism; a detection electrode for detecting water quality is arranged in the detection pool; a drainage port is formed in the bottom surface of the detection pool, and a drainage valve and a drainage pipe are arranged at the drainage port; and the moving mechanism is used for moving the water outlet port of the sample reserving water pipe so as to align with the bottle mouths of different sample reserving bottles. Automatic sampling and detection can be achieved, detection is conducted immediately after sampling, and the accuracy of a detection result and the accuracy of the whole monitoring period are ensured.

The utility model discloses an ultrasonic atomization assembly, which relates to the technical field of atomization equipment, and comprises a box body, a liquid cavity is arranged in the box body, a pipeline communicated with the liquid cavity is arranged on one side of the box body, and an atomization sheet is arranged at the end part of the pipeline; a core material is arranged in the pipeline in a penetrating mode and extends to the atomization piece from the liquid cavity. When the atomization device is used, the atomization sheet is arranged near the position of a glass slide in equipment, liquid in the solution cavity is transmitted to the atomization sheet through the core material, and liquid water molecule structures transmitted by the core material are scattered through high-frequency resonance of the atomization sheet to generate naturally flowing water mist, so that the space where the glass slide is located is kept wet, and the influence on an experiment result due to water loss of a sample is avoided.

This invention relates to an apparatus and method for desorption of manganese-based ion sieves. The method involves filling the ion exchange chamber with adsorbed manganese-based ion sieves, adding aqueous solutions to the anode and ion exchange chambers, and adding a salt solution to the cathode chamber. A power supply is turned on, and the voltage is adjusted to generate 0.001–0.1 mol / L H₂ in the anode chamber. + H + The cation exchange membrane passes through the ion exchange chamber, where it undergoes an ion exchange reaction with the manganese-based ion sieve. Water samples are periodically taken from the anode chamber, cathode chamber, and ion exchange chamber to detect Li. + Concentration, Mn 4+ By determining the concentration, pH, and conductivity, the critical points of ion exchange desorption sites and redox desorption sites are identified, and the reaction is controlled to ensure the desorption of the manganese-based ion sieve. Compared with existing technologies, this invention uses water electrolysis under a DC electric field to prepare a dilute acid regeneration solution, regenerating lithium ions at the ion exchange sites of the manganese-based ion sieve, achieving the goal of identifying desorption sites and minimizing manganese loss during low-concentration hydrogen ion regeneration.

The application belongs to the technical field of wastewater monitoring, and particularly relates to an online wastewater toxicity monitoring device and method based on nitrifying bacteria biofilm, which comprises a sample storage bottle, a nutrient solution pool, a buffer pool, a mixing and dissolved oxygen pool, an ultraviolet sterilization lamp, a gas-liquid mixing nozzle, a biofilm reactor, and a conveying pump for pumping liquid and gas, and valves and pumps for controlling the opening and closing of the conveying pipeline. The online wastewater toxicity monitoring device and method based on nitrifying bacteria biofilm have the advantages of high detection efficiency and detection accuracy, flexible and convenient use, simple structure, and low manufacturing cost.

The application provides a method for determining the content of aluminum by graphite furnace atomic absorption spectrometry. The method comprises the following steps: preparing an aluminum series calibration solution added with an alkali metal nitrate, determining the absorbance of the solution by using a graphite furnace atomic absorption spectrometer, and then drawing a standard curve with the determined absorbance as the ordinate and the content of aluminum in the aluminum series calibration solution added with the alkali metal nitrate as the abscissa; adding the alkali metal nitrate into a sample to be determined, determining the absorbance of the sample by using the graphite furnace atomic absorption spectrometer, and then calculating the content of aluminum in the sample to be determined according to the standard curve. The method can fully atomize the aluminum element, improve the measurement accuracy, and solve the problem of different atomization rates of sample water and calibration solution, and mask the interference of other metal oxides.

The utility model discloses a capacitive deionization purification device for saline-alkali soil drainage, which relates to the related technical field of saline-alkali soil drainage treatment and comprises a filter box, a filter mechanism is mounted in the filter box, a communicating pipe is arranged below the filter mechanism, and a capacitive deionization main body device is arranged on one side of the filter box. A drain pipe penetrates through the capacitive deionization main body device and is communicated with the communicating pipe, a photovoltaic solar panel is arranged at the top of the capacitive deionization main body device, an energy storage unit is connected to the bottom of the photovoltaic solar panel, and the energy storage unit is fixedly mounted above the capacitive deionization main body device. Impurities such as lumps and particles in water are removed through the filtering mechanism, multi-layer filtering treatment is carried out on drained water quality of the saline-alkali soil, and the water sample purification rate can be improved; and meanwhile, better efficiency and lower energy consumption are achieved, the quality of drained water of the saline-alkali soil can meet the requirements for low cost, large amount, easy obtaining and the like of irrigation water in arid region agricultural production after being purified, and the agricultural irrigation cost of the arid region is reduced.

The invention relates to a lake and reservoir chlorophyll concentration temporal and spatial change analysis method based on multi-source remote sensing. The method comprises the following steps: cooperatively collecting multispectral images and real-time water sample data through remote sensing and ground equipment, and obtaining a chlorophyll concentration measured value with geographic coordinates and timestamps; training a convolutional neural network inversion model by taking the measured value as a label, and processing the image to obtain a chlorophyll concentration distribution matrix; decomposing dynamic components through spectral analysis, extracting hydrological related subset data and optimizing to obtain a heterogeneity feature vector, and filtering interference through machine learning to obtain a pure signal sequence if sediment suspension disturbance exceeds the standard; calculating environment and climate influence weights based on the sequence, correcting the concentration, and generating optimized space-time distribution representation after validity score verification; finally, key monitoring points are extracted through differential monitoring grid division, and a chlorophyll concentration monitoring parameter set is formed. According to the method, the time-space continuity and accuracy of the monitored chlorophyll concentration data are guaranteed, and the monitoring efficiency is improved.

The utility model discloses an automatic water sample distribution transmission system, including booster pump, multi -way valve, sample water cup, liquid discharge valve, peristaltic pump and secondary sample water cup, and the both ends of booster pump are connected through the hose respectively pure water bucket and multi -way valve, and sample water cup is provided with multiple groups side by side, and multiple groups sample water cup are connected through the hose respectively one pipe joint of multi -way valve, and secondary sample water cup is connected through peristaltic pump with multi -way valve, and the liquid discharge port of sample water cup and secondary sample water cup is connected through the hose respectively one liquid discharge valve, and the top of secondary sample water cup is equipped with three pipe joints and three pipe joints are connected through the hose respectively multi -way valve, peristaltic pump and detection instrument, and the passage of connecting secondary sample water cup and every sample water cup on multi -way valve is controlled on -off through separate solenoid valve, and still be equipped with one water suction pipe of butt joint with the pipe joint of connecting detection instrument in secondary sample water cup. This automatic water sample distribution transmission system can realize automatic cleaning, moistening, need not manual intervention, can effectively improve the detection efficiency.

The utility model provides a drinking water layering purification device, which relates to the technical field of drinking water layering, and comprises a tank body and a layering assembly, the layering assembly comprises a first layering plate fixedly connected to the inner wall of the tank body, and the inner wall of the tank body is fixedly connected with a second layering plate; the water taking assembly comprises a fixing block fixedly connected to the top end of the inner wall of the tank body, the inner side of the fixing block is fixedly connected with a fixing ring, the interior of the fixing ring is fixedly connected with a sampling pipe, the top end of the sampling pipe is fixedly connected with a water suction valve, and the outer side of the tank body is fixedly connected with an observation assembly; by means of the design, the effects of dynamic layering and on-demand water taking are achieved, accurate detection and treatment can be conveniently conducted on different water layers, the sampling position can be flexibly adjusted, the representativeness of a sampled water body is ensured, and therefore the problem of sampling deviation caused by water layer distribution changes is effectively solved.

The utility model discloses a water environment monitoring sampling device convenient for position adjustment, which comprises support upright posts, a support base, moving wheels, an adjusting support main body and a sampling detection adjusting main body, the moving wheels are uniformly and rotatably arranged at the bottom end of the support base, the support upright posts are uniformly and fixedly arranged at the upper end of the support base, and the adjusting support main body is arranged on the support base. The adjusting supporting body is fixedly connected to the upper end of the supporting stand column. The sampling detection adjusting main body can be controlled to realize large-range sampling and monitoring adjustment through the arranged adjusting supporting main body, so that different positions of a sampling water area can be sampled, a sampling detection result is more accurate, sampling can be completed, and the sampling detection accuracy is improved. The device can detect and monitor the water body in a detection area in a large-range and multi-point manner, so that the device can complete sampling and monitoring, the sampling and monitoring area and position can be conveniently adjusted and controlled, and the device is convenient to use.

The invention relates to the technical field of experimental equipment, in particular to a full-automatic control dry-wet cycle experimental device, which is characterized in that dry-wet parameters are set through a controller, a water suction pump is controlled by the controller to automatically inject water into an experimental barrel, and the interior of the experimental barrel is vacuumized by an air exhauster to realize sample soaking; after the set soaking time is reached, the controller controls the electromagnetic valve on the drainage pipe to be opened, water in the experiment barrel flows back to the water storage barrel through the drainage pipe, then the controller controls the heating tray to heat and dry the sample, and the space where the heating tray is located is vacuumized by the air extractor, so that water vapor of the sample is conveniently discharged, and the drying effect of the sample is ensured; and after the set drying time is reached, soaking the sample again. And repeating the steps to realize automatic control of the dry-wet cycle. When the device is used for carrying out a dry-wet cycle test, the alternate dry environment and wet environment do not need to be manually operated, and the test time can be accurately controlled.