67 results about "Water conductivity" patented technology

The invention discloses a hydropower station water guide mechanism operation fault identification method based on deep learning, and the method comprises the following steps: processing vibration signal data of a water guide mechanism, and constructing a data set; dividing the data set into a training set and a test set in proportion; constructing a hydropower station water guide mechanism operation fault identification deep learning model; and taking the training set as input, training the model so as to obtain a water turbine water guide mechanism fault identification model, and verifying the effect of the model through the test set. According to the hydropower station water guide mechanism operation fault identification method based on deep learning, the time domain and frequency domain characteristics of the time history signal are fused, the time influence in the time history signal is considered at the same time, single-angle analysis is avoided, and the precision and robustness of a fault diagnosis model are improved.

The invention discloses an advanced treatment method and device for reverse osmosis produced water, and relates to the technical field of industrial high-purity water treatment. An electric mixing bed and an anion bed are sequentially connected in series to form a treatment system, and the electric mixing bed is of an ion-free exchange membrane structure, is filled with anion and cation mixed resin and is used for removing residual salt, carbon dioxide and part of silicon compounds in reverse osmosis produced water; and the anion bed is filled with strong-basicity anion exchange resin for removing residual silicon compounds treated by the electric mixing bed, so that the conductivity of the final produced water and silicon dioxide can stably reach the standard. And a middle liquid discharging device is arranged between the electric mixing bed and the anion bed and is used for discharging waste alkali liquid and cleaning effluent in the regeneration and cleaning process of the anion bed. According to the invention, the advantages of low cost and high water recovery rate of the electric mixing bed and high-efficiency silicon removal of the anion bed are integrated, the requirement on the silicon content of the front reverse osmosis produced water can be obviously relaxed, the application range of the electric mixing bed is widened, and the service life of the reverse osmosis membrane is greatly prolonged.

The invention provides a water burst and mud burst prediction method based on a comprehensive advanced geological forecast fault fracture zone, and relates to the technical field of geological disaster prediction, through a fault fracture zone existence possibility grade, an approaching precursor grade, a rock mass integrity degree grade, a drilling condition grade, a seismic wave reflection method grade and a geological radar method grade, the fault fracture zone existence possibility grade, the approaching precursor grade, the rock mass integrity degree grade, the drilling condition grade and the geological radar method grade are calculated; and predicting the scale grade of the fault fracture zone by using a polynomial naive Bayes-based fault fracture zone comprehensive prediction model so as to obtain the scale of the fault fracture zone, if the fault fracture zone does not exist, determining that water bursting and mud bursting do not exist, and if the fault fracture zone exists, determining that water bursting and mud bursting do not exist. And combining the water conductivity grade of the fault fracture zone, the rock mass integrity degree grade, the underground water development degree grade and the surface water supply condition grade, and utilizing a fault fracture zone water gushing and mud bursting grade prediction model based on a genetic algorithm and a support vector machine to predict the fault fracture zone water gushing and mud bursting grade. The problem that the water burst and mud burst grade of the fault fracture zone cannot be predicted in the prior art is solved.

The invention provides a complex geological structure mine area grouting transformation effect evaluation method, and relates to the technical field of grouting effect evaluation. The method specifically comprises the following steps that mine geology and hydrogeology characteristics, the space superposition relation and the water yield property of a water-bearing layer and a water-resisting layer, the range of a main coal mining layer, a construction outline map, ground stress analysis, a grouting layer position, grouting hole arrangement and grouting parameters are determined; carrying out fracture effective area analysis, and determining the fracture effective area distribution condition; carrying out fracture effective area water conductivity analysis; carrying out correlation analysis on the effective fracture area and the grouting space; and grouting effect evaluation is carried out, and a grouting effect evaluation model is constructed. According to the technical scheme, the problems that in the prior art, geologic structures and fracture development are not fully considered, the relation between the geologic structures and the fracture development and grouting parameters is not established, and grouting does not have engineering practicability are solved.

The invention relates to the technical field of flow field dynamic simulation, and particularly provides a drainage test data fused underground water flow field dynamic simulation method and system near a fault, and the method comprises the steps: generating a fault three-dimensional water conductivity parameter field according to transient water level response data of a monitoring well in a drainage test; realizing conversion of dynamic data of the exploration method to a fault non-uniform quality model; integrating migration path data of a tracing test, fracture network geometric data of ultrasonic logging and a fault three-dimensional water conductivity parameter field, and constructing a heterogeneous graph structure taking a fault as a core node; establishing association between the multi-modal exploration data and the dynamic representation of the fault structure; and outputting a high-resolution spatio-temporal evolution graph of the flow field parameters of the fault disturbance area in the future period, and realizing dynamic visual closed-loop feedback of the flow field near the fault driven by real-time data of the exploration method. The system comprises a data conversion module, a representation association module and a closed-loop feedback module. According to the invention, a breakthrough from static description to dynamic simulation of the flow field near the fault is realized.

The invention discloses a concentration-controllable electrolytic ozone generating device and an implementation method, the concentration-controllable electrolytic ozone generating device comprises a power adjusting module, a data processing module and a data setting module, an EN terminal of the power adjusting module is connected with a PWM terminal of the data processing module, and the data processing module communicates with the data setting module through Bluetooth. The ozone generator has the advantages that the power of the ozone generation module can be adjusted to generate the ozone generation speed matched with the power according to different water conductivities in the ozone generation device, meanwhile, the water temperature in the electrolysis process is monitored, ozone decomposition consumption is supplemented according to half-life period values of ozone decomposition at different temperatures, and the ozone generation efficiency is improved. And the ozone water concentration is kept constant for a long time.

The application discloses a generator internal cooling water optimization processing method, device and system, through obtaining a target conductivity value and a current water outlet conductivity value, and combining the relationship between the ammonia concentration and the conductivity of the internal cooling water, an adjustment amount of the water supplement conductivity control value relative to the current water outlet conductivity value is determined to supplement the internal cooling water tank; the operation is circular until the obtained conductivity difference value is less than or equal to a preset threshold value. The application is equivalent to realizing that the water supplement conductivity control value is determined according to the required ammonia addition amount of the current internal cooling water, so that the control of the water supplement conductivity control value can be more accurate, and the control fluctuation is greatly reduced and the system regulation period is shortened. In addition, through multiple sampling and circular execution, the current water outlet conductivity value can be gradually approximated to the internal cooling water target conductivity value in a progressive manner, and finally stabilized in the threshold range of the internal cooling water target conductivity value, so that the adjustment of the generator internal cooling water conductivity is more accurate.

The utility model relates to the technical field of environmental protection, in particular to an STRO membrane experiment device which comprises a water storage tank, a liquid inlet pump, a filter element filter, an STRO membrane assembly and a control cabinet, the bottom of the water storage tank is communicated with a raw water switching valve HV-101 through a raw water pipeline, the simple STRO membrane experiment device can be used for sewage treatment experiments in a laboratory and on a project site, and the operation is simple. The water inlet flow displayed by the raw water flow meter FI-101, the water inlet conductivity displayed by the raw water conductivity meter CIT-101, the membrane water inlet pressure displayed by the pressure gauge PI-101, the concentrated water flow displayed by the concentrated water flow meter FI-201, the concentrated water conductivity displayed by the concentrated water conductivity meter CIT-201 and the produced water flow displayed by the produced water flow meter FI-301 can be accurately recorded; various operation data such as water production conductivity displayed by a water production conductivity meter CIT-301 can be used for measuring and calculating the data such as the salt removal rate and the recovery rate of the experimental device under different pressure states, and a design basis is provided for STRO membrane application.

The present invention discloses an intelligent analysis method for basin water balance statistics, belonging to the technical field of data analysis, which includes the following steps: S1. Obtain the soil parameters at the bottom of the reservoir and the parameters of the aquifer, determine the characteristic aquifer, and calculate the water conductivity weight of the reservoir; S2. Obtain the water storage regulation index according to the water conductivity weight of the reservoir and the actual water storage volume in the historical period, and use the water storage regulation index to obtain the predicted water storage volume; S3. Give an early warning when the predicted water storage volume is greater than the total reservoir capacity. By combining the water conductivity weight and the historical water storage volume, the present invention can dynamically adjust the water storage regulation index to meet the water volume statistics requirements of the reservoir under different conditions, and provide strong support for the scheduling and management of the reservoir in the basin.

The invention belongs to the field of sewage treatment and water quality monitoring, and particularly relates to a construction method and application of a water inflow anomaly recognition model based on water quality. The water inflow anomaly recognition model comprises the steps of obtaining a historical data set; constructing a water inlet soft measurement MLP module and a water outlet prediction CNN module; performing reconstruction coupling on the water inlet soft measurement MLP module and the water outlet prediction CNN module to obtain a water inlet anomaly recognition model; the independent variables of the inflow water abnormity identification model are inflow water pH value, inflow water conductivity, inflow water dissolved oxygen and inflow water oxidation-reduction potential, and the dependent variable of the inflow water abnormity identification model is effluent chemical oxygen demand. According to the invention, the advantages of each model are fully exerted to improve the prediction precision and robustness; through verification, compared with a simple series model, the reconstruction coupling model provided by the invention can still keep good prediction performance even under the conditions of limited data samples and large volatility.

The utility model discloses an ultrapure water conductivity test environment construction device which comprises a lifting device, a lifting frame is installed on the lifting device, side plates are fixedly connected to the two sides of the front face of the lifting frame, two fixing plates are fixedly connected between the two side plates, a waterproof cylinder is arranged between the two fixing plates, and the waterproof cylinder is fixedly connected with the lifting frame. A through hole is formed in the bottom end of the waterproof cylinder, an ultrapure water detection device is arranged in an inner cavity of the waterproof cylinder, and a cover cap is fixedly connected to the top end of the ultrapure water detection device. According to the ultrapure water detection device, the waterproof cylinder and the cap are arranged, so that when the ultrapure water detection device passes through the lifting equipment and the detection head part of the ultrapure water detection device goes deep into ultrapure water for detection, the part above the detection head is separated from the ultrapure water, and the temperature of the equipment is prevented from being conducted to the ultrapure water; the condition that the ultrapure water invades into the ultrapure water detection device is also avoided, and the accuracy of the subsequent conductivity test is ensured.

The application relates to the technical field of rail transit construction, and discloses a simulation method for shield mud film closed gas test, which comprises the following steps: S1: establishing a simulation system for the shield mud film closed gas test; S2: preparing mud according to requirements; S3: measuring the porosity, density, residual water content, water conductivity coefficient, elastic modulus, Poisson's ratio and water holding capacity parameters of the mud and stratum soil; S4: inputting the material parameters obtained in S3 into the simulation system for the shield mud film closed gas test, and then carrying out model verification by using a small amount of mud film closed gas test; and S5: carrying out simulation calculation and analysis. The application provides an indoor closed gas test simulation model based on the Biot poroelasticity theory and under the fluid-solid coupling condition, considers the different water holding capacity characteristics of mud films and strata, carries out model verification by using the gas migration law and seepage flow evolution data obtained through the indoor test, and realizes rapid evaluation of the mud film closed gas characteristics under complex geological conditions and shield parameter working conditions.

The invention relates to a method for controlling the water conductivity of a high-voltage electrolytic cell test board, which is used for controlling the water conductivity of the high-voltage electrolytic cell test board, and the high-voltage electrolytic cell test board comprises a gas-liquid separation tank body for storing high-purity deionized water and creating conditions for controlling the conductivity; the ball valve is used for manually controlling the on-off of a deionized water path through a valve; the water pump is used for controlling circulating flow of deionized water; epoxy resin is arranged in the deionizing device; the one-way valve prevents work not according to the specified flow direction; the conductivity sensor is used for detecting a conductivity value in real time; the control logic is converted into'detection-active purification ', and the conductivity is reduced by directly and continuously removing conductive ions from the circulating water on line; and more direct and essential regulation and control of water quality core parameters are realized through conversion from'dilution 'to'removal'.

The present application relates to the technical field of coal mine floor aquifer drainage and pressure reduction, and particularly relates to a water pressure drop range and drainage time prediction method applied to underground porous water drainage. The method comprises the following steps: delineating a water-rich abnormal area by multiple means; obtaining the target area's water conductivity and elastic water release coefficient based on group-hole water drainage test data; arranging control points around the working face, especially at places where the aquiclude is relatively thin, calculating the apparent water inrush coefficient and determining the design water level drawdown; combining the water conductivity, elastic water release coefficient of each aquifer and the control point's design water level drawdown to predict the drainage time; reasonably arranging drainage holes in the water-rich abnormal area and establishing an underground multi-hole water drainage system; and further dynamically regulating the water drainage system operation by using the control point's design water level drawdown and drainage time. The present application can predict the drainage time in advance, optimize the construction schedule and improve the overall work efficiency.

The present invention relates to a water quality conductivity sensor and a water quality conductivity measurement method, and relates to the technical field of water quality conductivity. The water quality conductivity sensor includes a plurality of measuring electrodes, and one measuring electrode includes a transmitting electrode sheet and a receiving electrode sheet that are relatively arranged and have the same size and shape, and the transmitting electrode sheets between the measuring electrodes are of the same size and shape; the transmitting electrode sheet is connected to a sinusoidal wave excitation signal source, and the receiving electrode sheet and the sinusoidal wave excitation signal source share a common ground, and one measuring electrode corresponds to one sinusoidal wave excitation signal source. The present invention can effectively suppress electrode polarization and reduce the influence on the sinusoidal signal, thereby improving the measurement accuracy of water quality conductivity parameters.

The present application belongs to the technical field of oil and gas exploration, and is especially a method for calculating oil saturation based on a four-water conductive model. The method comprises the following steps: S1: constructing a four-water saturation equation; S2: calculating four porosity; S3: determining the resistivity parameter; S4: determining the lithology coefficient and the cementation exponent by using an optimization method; and S5: calculating the oil saturation. On the basis of the traditional three-water conductive model, the present application introduces a new conductive component, i.e. fine silt pore water, which is more in line with the conductive characteristics of a shale-developed sandstone reservoir, realizes fine characterization of the complex conductive mechanism, improves the reliability of the oil saturation calculation result, and makes the logging interpretation conclusion more reliable. Through the combination of laboratory core analysis and logging data, the parameters can be determined and rapidly calculated in different regions, and the present application has good practicability.

The application discloses a deep mine super-high confined water gushing prediction method and system and a storage medium, and comprises the following steps: constructing a three-dimensional hydrogeological parameter model; dividing the three-dimensional hydrogeological parameter model into a back-calculation target area and a non-target area according to the excavation response priority; summing up the equivalent exposed areas of the shaft and the roadway to obtain the total equivalent exposed area of the present situation of the mining area, and substituting the three-dimensional hydrogeological parameter model to obtain the initial equivalent water inflow; when the deviation between the initial equivalent water inflow and the present situation of the total measured water inflow is greater than the set deviation threshold, the local back-calculation calibration is carried out on the water conductivity parameters in the back-calculation target area to obtain the present situation calibration model; based on the present situation calibration model, the normal water inflow of the mine and the maximum water inflow of the mine are predicted in the subsequent production stage; by establishing the water inflow equivalent quantitative constraint calibration model, the present application can realize the partition parameter adjustment and guarantee the reasonable and interpretable parameters, and greatly improve the water conductivity channel identification and water inflow prediction accuracy.

The invention discloses an intelligent water yield regulation control system for hemodialysis, which is characterized in that a variable frequency pump is triggered to dynamically modulate frequency by monitoring the liquid level of a balancer, the pressure and temperature of an RO (Reverse Osmosis) membrane and the water yield conductance in real time and combining with a liquid level change rate threshold value, so that the water yield can be regulated in a wide range of 2.0-4.5 T / H. Temperature compensation and a membrane life coefficient are introduced into the system to optimize the actual water yield, the demand is predicted through a moving average algorithm, and the adjustment frequency is reduced. After application, the water supply pressure is stabilized at 4 + / -0.2 bar, water is saved by more than 30%, and energy waste and backpressure risks caused by fixed water yield are solved.

The invention relates to the technical field of clothes care machines, particularly provides a clothes care machine and a control method thereof, and aims to solve the problem of overflow caused by misjudgment of a water level probe when the water conductivity of an existing clothes care machine is low. In order to achieve the purpose, the clothes care machine comprises a water storage box, a waste water box and a drainage pump, and water is drained from the water storage box to the waste water box by controlling the drainage pump between the water storage box and the waste water box; a wastewater level probe is arranged in the wastewater box; the control method comprises the following steps: acquiring a wastewater level probe value; and when the value of the wastewater level probe is lower than the actual wastewater amount, the drainage pump is controlled to be started to discharge water in the water storage box into the wastewater box. And when the value of the wastewater level probe is lower than the actual wastewater amount in the wastewater box, the conductivity of the wastewater is relatively low, and the water level value detected by the probe is inaccurate, so that the water in the water storage box is discharged into the wastewater box, and the water in the two water boxes is neutralized to improve the conductivity of the water in the wastewater box, improve the water level detection accuracy of the water level probe and prevent overflow.

This invention provides a drainage system and method for fissure water on open-pit slopes in high-altitude freeze-thaw environments, relating to the field of open-pit mine slope hydrogeological management technology. It reconstructs the traditionally perceived adverse factor of blasting vibrations on slopes into a positive driving force for the directional migration of fissure water, constructing a closed-loop drainage mechanism of vibration release – enhanced fissure connectivity – water migration downhill – pit bottom collection – centralized drainage. This invention overcomes the limitations of traditional static drainage measures that rely on gravity seepage, solving the problem of low drainage efficiency caused by frequent fissure opening and closing and spatiotemporal fluctuations in water conductivity in high-altitude freeze-thaw environments. It significantly improves drainage efficiency while reducing the risk of slope instability caused by water, achieving an organic integration of mine production and slope management.

A capacitive electrical conductivity sensor is integrated into a water meter. The sensor is used to determine water conductivity, which may be used to determine water quality. A model of a capacitor, a flow of water, and a plastic pipe used to conduct the flow of water passing through a water meter is defined. The model may include a circuit having a constant phase element (CPE) connected to a resistor Rb and a capacitor Cb in parallel. An input signal may be applied to the actual capacitor (not the model) over a range of frequencies. Current flow associated with several frequencies may be used to identify values of Q0 and alpha of the CPE of the model. A value for the resistor Rb is identified using values obtained from measurements. A conductivity of the flow of water may be derived using input values comprising Rb, and the values of Q0 and alpha of the CPE of the model.

The utility model belongs to the technical field of soil saturated hydraulic conductivity measurement, and particularly relates to a simple soil saturated hydraulic conductivity measurement device which comprises an upper fixing plate and a lower fixing plate, the lower fixing plate is mounted below the upper fixing plate, and a water outlet pipe is mounted at the bottom of the lower fixing plate; the lifting mechanism is used for automatically lifting the upper fixing plate and comprises fixing rods vertically installed at the four corners of the top of the lower fixing plate and springs arranged on the four fixing rods in a sleeving mode, and the top ends of the four fixing rods movably penetrate through the upper fixing plate; the upper fixing plate can be always kept suspended above the lower fixing plate through the lifting mechanism, at the moment, the distance between the upper fixing plate and the lower fixing plate is larger than the height of two overlapped cutting rings, when the cutting rings are placed, the overlapped cutting rings are directly placed on the top of the lower fixing plate, and therefore the cutting rings can be placed conveniently. The upper fixing plate does not need to be disassembled additionally, and the step of installing the cutting ring is simplified.

Aiming at the technical problem that the triple-water conductivity model has too many parameters and a large amount of core experimental data such as mercury injection, rock electricity experiment, clay analysis, cation exchange capacity, etc. are required in the prior art to determine the model parameters, the present invention innovatively proposes a method for calculating the parameters of the triple-water conductivity model based on nuclear magnetic resonance constrained conventional logging. The calculation method substitutes the free fluid porosity, micro-capillary water porosity, and clay water porosity obtained from nuclear magnetic resonance logging interpretation into the formula of the triple-water conductivity model expressed by conventional logging parameters, combines with parameters such as porosity, shale content, and irreducible water saturation interpreted by conventional logging, and finally achieves the calculation of all model parameters without relying on experimental data. When calculating the parameters, relying on the characteristics of the large data sample of the logging data itself and assisted by the optimization algorithm of multiple groups of data, the calculation accuracy is improved.

The invention discloses a collapse column position and water conductivity monitoring system and monitoring method. In the collapse column position and water conductivity monitoring system, a monitoring well is formed in a mine field stratum; the optical fiber part is at least partially arranged in a monitoring well, the DAS monitoring host is connected with the single-mode optical fiber, the single-mode optical fiber is used for continuously collecting sound wave signals generated by vibration of a vibration source and transmitting the sound wave signals to the DAS monitoring host, and the DAS monitoring host obtains the stratum strain rate by analyzing changes of the sound wave signals and defines the position of a collapse column through the stratum strain rate; the DTS monitoring host is connected with the multimode optical fiber, the multimode optical fiber is used for continuously collecting temperature signals and transmitting the temperature signals to the DTS monitoring host, and the DTS monitoring host judges the water conductivity of the collapse column by analyzing the temperature signals and combining the position of the collapse column. According to the collapse column position and water conductivity monitoring system and monitoring method provided by the invention, the safety of a coal mine is ensured, the construction is simplified, the cost is reduced, and the real-time monitoring of the position and water conductivity of the collapse column of the coal mine is realized.

This invention provides a method and device for monitoring soil salinity in facilities, belonging to the field of soil salinity monitoring technology. This invention pre-defines a well-defined salinity decoupling function, mechanistically separating the combined effects of temperature, soil moisture content, and clay content on pore water conductivity to obtain standardized pore water conductivity, which is the essential physical quantity reflecting salinity levels. This solves the problems of ambiguous physical meaning of pore water conductivity values, environmental noise drowning out the true signal, and leading to misjudgments of salinity. This invention utilizes selected stable window data, with the optimization objective of minimizing the variance of the calculated pore water conductivity sequence. It employs a nonlinear least squares method to iteratively update the parameters in the salinity decoupling function online, significantly improving the model's local applicability and accuracy at that point. This solves the problems of inaccurate cross-point measurements and long-term performance degradation caused by unchanging model parameters.

The invention discloses a method for improving saline-alkali soil through waste calcium-rich algae-based biomass charcoal and application of the method, and relates to the technical field of saline-alkali soil improvement, the method comprises the following steps: (1) microalgae flocculation: adding a calcium salt flocculant and an aluminum-containing coagulant aid into a microalgae system for flocculation to obtain calcium-rich algae mud; (2) hydrothermal carbonization: carrying out hydrothermal carbonization reaction on the calcium-rich algae mud, and after the reaction, carrying out solid-liquid separation and drying to obtain waste calcium-rich algae-based biomass charcoal; (3) soil improvement: applying the waste calcium-rich algae-based biomass charcoal into saline-alkali soil to be improved; the algae-based biochar with an excellent pore structure and a calcium-rich property is prepared through a synergistic process of calcium salt flocculation and hydrothermal carbonization. In the improvement of the saline-alkali soil, the water conductivity of the soil is improved through the physical structure to drive salt leaching, and the ion exchange and immobilization of calcium and sodium are driven by using the calcium source characteristics of the chemical composition and abundant functional groups, so that the dual targets of waste recycling and treatment cost reduction are achieved.

This invention belongs to the field of steel smelting technology and discloses a method for removing and supplementing abnormal data of simulated water conductivity. The method includes: acquiring raw simulated water conductivity data and performing data preprocessing; analyzing the regularity of the raw simulated water conductivity data; if a regularity is determined, setting data removal and supplementation rules, determining the upper and lower limits of non-abnormal simulated water conductivity data, the deviation value of abnormal simulated water conductivity data, and the supplementation rules for abnormal simulated water conductivity data, and judging and processing the abnormal simulated water conductivity data; judging the expected data of the processed abnormal simulated water conductivity data; if it meets the expected data, outputting the data; otherwise, reprocessing the abnormal simulated water conductivity data until it meets the expected data. This invention effectively removes and supplements abnormal data by setting data removal and supplementation rules, improving data analysis efficiency.

The utility model provides a cutting ring seal box for measuring saturated hydraulic conductivity, which relates to the field of soil detection and soil scientific experiment equipment and comprises a seal box body, a top cover is mounted at the top of the seal box body, a bottom cover is mounted at the bottom of the seal box body, the seal box body, the top cover and the bottom cover are cylindrical, a water inlet is arranged on one side of the top cover, and a water outlet is arranged on the other side of the bottom cover. A water inlet is formed in one side of the bottom cover, a water outlet is formed in one side of the bottom cover, pipe plugs are connected to the water inlet and the water outlet in a clamped mode, the cutting ring sealing box serves as a key accessory for soil saturation hydraulic conductivity measurement and has the remarkable beneficial effects, multiple functions are creatively integrated, and in a traditional mode, the soil saturation hydraulic conductivity measuring device is convenient to use. Different treatment processes and equipment are often needed for soil saturated hydraulic conductivity measurement and soil moisture characteristic curve measurement through a centrifugal machine, however, according to the sealing box, the cutting ring which is used for extracting undisturbed soil can be directly embedded into the box body, a special cutting ring is not needed for sampling and measurement, and the sampling workload is greatly reduced.

The embodiment of the invention provides a water heater scale treatment method and device, a water heater and a storage medium. The water heater scale treatment method comprises the steps that inlet water quality hardness detected by an inlet water conductivity sensor and outlet water quality hardness detected by an outlet water conductivity sensor are obtained; determining a water quality hardness difference value according to the water quality hardness of the inlet water and the water quality hardness of the outlet water; determining a current thermal efficiency value in response to the condition that the water hardness difference value is greater than a preset scale threshold value; determining a thermal efficiency decrease value according to the current thermal efficiency value; and descaling treatment is carried out according to the heat efficiency drop value. According to the embodiment of the invention, the water scale can be detected and timely treated, so that the potential safety hazard is eliminated, and the safe operation of the water heater is ensured.