12 results about "Water conductivity" patented technology

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.

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.

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 relates to the technical field of conductivity measurement, especially pure water conductivity measuring device, pure water conductivity measuring device, including power supply, transformer, positive pole metal stick, negative pole metal stick and multimeter constitute, be provided with safety detection module on the negative pole metal stick, safety detection module includes mounting sleeve, insulated handle, electric capacity response film and insulating cover, by adopting above -mentioned technical scheme, when someone holds the insulated handle, will press electric capacity response film, through the inductance of pressing area, can know whether in the state of hand holding, under the state of hand holding feedback to control system, prevent the start of equipment, especially the start of transformer, can play to thereby reduce the risk of electric shock from the source, provide more safe and reliable guarantee effect for pure water conductivity measurement work.

The present application relates to the technical field of soil pollution control and treatment, and particularly relates to a small watershed risk hidden danger grade evaluation method based on multi-risk coupling. Time series data of soil pore water conductivity, pH value and water content at different depths of the same spatial coordinates of the small watershed are obtained, and a depth-time two-dimensional matrix is constructed. The matrix is input into an encoder containing multiple parallel attention branches, each branch calculates shallow autocorrelation coefficients, deep autocorrelation coefficients and cross-depth cross-correlation coefficients through a learnable weight matrix. The coefficients are weighted and fused to generate a vertical coupling feature vector. The physical resistance process between soil layers at different depths is converted into cross-depth time series correlation features, which eliminates the direct interference of shallow surface soil instantaneous fluctuations on the risk grade of deep seepage, overcomes the evaluation lag defect caused by single-depth static indicators, and realizes the risk hidden danger grade division according to the real physical evolution state of the deep soil.

This application discloses a multi-source fusion calibration method for hydrological parameters in complex geological coalfields. The invention establishes a physical mapping model between structural geometric parameters and hydrological response parameters by conducting in-situ pressure tests, fracture network seepage simulations, and mechanical tests within each water-controlling unit, generating a set of quantitative indicators for structural water control effects. Compared to the subjective methods in existing technologies that rely on expert experience scoring, semi-quantitative grading, or simple geometric statistics to establish quantitative indicators, this invention uses the actual water conductivity of the rock mass, fracture seepage patterns, and stress-fracture coupling responses as physical bases. This provides in-situ physical calibration support for the quantitative indicators, eliminates human uncertainty, and solves the problem of inaccurate water control level judgment due to differences in observation scale and stress state in the same structural location, thereby improving the objectivity and reliability of hydrological parameter characterization in complex structural areas.

This invention discloses a real-time, comprehensive early warning system for water inrush and rockburst prevention in coal mines caused by mining, belonging to the field of coal mine safety monitoring technology. Addressing the problems of large spatial blind spots, delayed dynamic response of seepage fields, and insufficient early warning accuracy in existing monitoring technologies, this system utilizes a comprehensive sensor array to perform real-time, three-dimensional monitoring of seepage and mechanical parameters in the fault zone of the mining area. It employs a seepage-dominated coupling analysis module to fuse multi-source data, dynamically allocates monitoring weights using the entropy weight method, and calculates fault water conductivity and comprehensive risk indicators. Based on a three-level early warning mechanism, the system issues real-time warning signals according to the risk level and can be linked with mine safety control devices to execute emergency responses. This invention achieves comprehensive, real-time, and intelligent early warning for water inrush and rockburst disasters induced by fault activation, significantly improving the proactive prevention and control capabilities and safety assurance level during coal mining.

The application discloses a North China type coalfield collapse column exploration and evaluation method based on ground directional drilling technology, which comprises the following steps: determining the center position of the collapse column in the coal seam floor contour map within the three-dimensional seismic delineation as the opening position of the main hole for exploration; determining the number, direction and horizontal displacement of the directional branch holes for collapse column exploration; calculating the distance between the coal seam floor and the Ordovician limestone aquifer and the water head height of the Ordovician limestone aquifer; calculating the safety aquifer thickness M of the coal seam floor; calculating the final hole depth of the main hole for collapse column exploration and the final hole elevation of the branch hole; determining the deflecting radius and trajectory of the branch hole; performing the main hole construction, determining the top boundary position of the collapse column according to the core and performing the hydrogeological test; performing the branch hole construction, determining the upper interface and the side interface of the collapse column and performing the hydrogeological test; delineating the spatial form of the collapse column and analyzing and evaluating the water enrichment and water conductivity of the collapse column. The application provides a scientific basis for the water prevention and control design of the mining field and the mine, and ensures the safe and efficient production of the mine.

This invention relates to the field of roadway safety optimization technology, and discloses a roadway layout method for water control and scour prevention in mining-induced fault zones. The method includes: analyzing the geological and hydrological conditions of the mining area to obtain parameters of the fault fracture zone, aquifer parameters, and the range of mining-induced impact; dividing the mining area into multiple hazard level zones, including a stress reduction zone, based on the fault's water conductivity and stress concentration; determining the safe distance for water control between the roadway and the fault based on the width of the fault fracture zone, water pressure, and the impact of mining, and optimizing the width of the water-control column; and arranging the roadway within the stress reduction zone according to the characteristics of mining-induced stress distribution, and controlling the angle between the roadway direction and the fault direction to be an acute angle. This invention can significantly reduce the risk of fault-induced water inrush, effectively mitigate the danger of rockburst, achieve coordinated water control and scour prevention, improve the rationality of roadway layout, enhance the stability of the surrounding rock, and reduce disaster management and maintenance costs.

The present application relates to a kind of stratum water resistivity inversion interpretation methods based on conventional well logging curve, constructs a rock conductive response model and natural potential electrochemical response model;With stratum conductivity measured value and natural potential deviation measured value as constraint, in the stratum water conductivity range of the region where target well section is located, rock conductive response model and natural potential electrochemical response model are jointly constrained inversion solution, obtain an optimal stratum water conductivity so that the predicted value of rock conductive response model and natural potential electrochemical response model simultaneously approaches corresponding measured value;Further, according to the optimal stratum water conductivity, the predicted stratum water resistivity is obtained.The present application utilizes dual physical field constraint to improve the uniqueness and reliability of inversion result, solves the correction problem of shale additional conductivity, and still maintains high precision in complex lithology reservoir;Only need conventional logging data, without special logging or formation test, can realize point-by-point calculation of whole well section, has very strong popularization value.