71 results about "Contamination" patented technology

A method for preventing gas flow into and out of a first enclosure having a first volume by limiting changes of the pressure within the first enclosure which includes providing a second enclosure including a variable volume device having an interior second volume that varies responsive to the pressures inside and outside the second enclosure and providing fluid communication between the interior of the first enclosure and the interior of the second enclosure to maintain a substantially fixed collective volume of the combination of the first enclosure and the second enclosure despite ambient temperature.

The present application relates to geological survey technical field, specifically be a kind of geotechnical engineering geological survey with drilling rig, including base, the lifting assembly is on, the bracket is connected with driving assembly, the bracket is rotatably connected with sampling mechanism, when geological survey, driving assembly and sampling mechanism are moved up and down together by lifting assembly, simultaneously driving assembly works, drives drilling assembly to sample geology, drilling assembly enters different soil layer, and the resistance it receives is different, so in the case of entering different soil layer, the speed of centrifugal swing assembly rotation is different, when the speed of rotation changes, the distance of crosswise movement of top rod assembly also changes, so that drilling assembly samples two adjacent soil layers, for example, when drill bit drills into hard or soft soil layer, sampling tube is automatically switched collection point by conical block, ensure the representativeness and integrity of sample. In prior art, sampling interruption or interlayer contamination problem is effectively solved.

The present application relates to a kind of groundwater organic pollution tracing analysis method and system based on isotope, the method comprises: collecting the pollutant parameter of monitoring point in multiple time intervals;Build target monitoring point set;Its coverage area is called target area;Based on typical time interval, the pollutant parameter of each monitoring point in analysis target monitoring point set is found to obtain the contour line corresponding to pollutant parameter type;The area in the contour line of each pollutant type high pollutant parameter is regarded as suspected area;Determine target pollution source in suspected area based on isotope parameter.The present application fully utilizes big data monitoring resources from space and time, combines pollutant parameter itself and optimally uses isotope analysis resources, and the tracking of pollution source is guided to provide efficient multi-source burst differentiating pollutant tracing.

A method for reducing contamination of a dehydrated material, comprising: receiving a contaminated partial or complete dehydrated material; analyzing the contaminated dehydrated material to determine the type and degree of contamination it has through conventional analytical techniques to detect the presence of contaminating agents; placing the contaminated dehydrated material in a container made of a material that can withstand high temperatures and pressures and configured to allow circulation of a gaseous fluid so that the gaseous fluid uniformly contacts the item to be decontaminated; subjecting the contaminated dehydrated material to at least one decontamination treatment according to the results of the contamination analysis; and packaging the decontaminated dehydrated material.

The invention belongs to the technical field of coal rock mechanical property testing, particularly relates to a mechanical testing device and method for coal rock loading, and solves the problems that an existing device is single in function, fragments splash, cleaning is inconvenient, and protection and cleaning are not linked. The device comprises a supporting mechanism, and a modular loading mechanism is detachably mounted on the supporting mechanism and comprises a static extrusion loading module and a dynamic impact loading module; the linkage type protection mechanism is provided with two protection half barrels, and fragments can be prevented from splashing when the two protection half barrels are closed; the sweeping mechanism is started when the protective half barrels are unfolded, a rotating ring drives a Z-shaped plate to rotate, an annular inclined panel is driven to vibrate, and fragments are swept; the device integrates a static extrusion function and a dynamic impact function, so that the equipment utilization rate and the application range are improved; protection and cleaning are linked, safety is guaranteed, cross contamination is avoided, and the experiment accuracy and efficiency are improved.

The application discloses a composite insulator deterioration type discrimination method and device, a storage medium, equipment and a program product. The method comprises the following steps: acquiring the surface temperature data of the axis of the composite insulator; calculating the maximum temperature rise; in response to the maximum temperature rise being greater than a preset first temperature threshold, calculating a characteristic parameter and acquiring the environmental humidity; when the environmental humidity is less than a preset humidity threshold, performing the deterioration type discrimination under low humidity based on the characteristic parameter to obtain the proportion of the surface contamination and the interface defect; and when the environmental humidity is greater than or equal to the preset humidity threshold, performing the deterioration type discrimination under high humidity based on the characteristic parameter to obtain the proportion of the surface contamination, the interface defect and the sheath aging and dampness. The application can meet the requirements of simple, fast and effective on-site insulator detection.

Device (1) for contamination analysis of a component (2), comprising - a suction device (4) for generating a suction flow (S), - a receiving device (5) fluidically coupled to a suction side (4.1) of the suction device (4) with a suction opening (5.1) for drawing particles (P1 to Pn) from the component (2), - a filter device (3) arranged between the suction side (4.1) and the receiving device (5), comprising a filter housing (3.1) with - a first housing section (3.1.1) fluidically coupled to the suction side (4.1), - a second housing section (3.1.2) fluidically coupled to the receiving device (5), the inner contour of which is designed as a hollow cylinder with a constant inner diameter (d), wherein the inner diameter (d) is smaller than a length (l) of the hollow cylinder, and - a filter section (3.1.4) arranged between the housing sections (3.1.1, 3.1.2), in which a disc-shaped filter (3.2) is arranged and / or can be arranged immediately adjacent to the hollow cylinder, the surface normal vector of which runs in the direction of the suction flow (S), and - an evaluation unit (6) which is configured to automatically perform a photo-optical analysis of the filter (3.2) with regard to the quantity and / or type and / or size and / or shape of particles (P1 to Pn) drawn in via the intake opening (5.1) and deposited on a surface of the filter (3.2), characterized in that the first housing section (3.1.1) has a funnel-shaped inner contour which, starting from a coupling point with the second housing section (3.1.2) in the direction of the suction device (4), tapers from an inner diameter corresponding to the inner diameter (d) of the hollow cylinder to a smaller inner diameter.

The invention discloses a sampling device for coal mine fault geological survey, and relates to the technical field of geological survey sampling. The antifouling assembly comprises an inner pipe arranged on the inner side of the tank body in a penetrating mode, an antifouling part, an anti-falling part and a mounting part, the antifouling part is used for preventing cross contamination between materials of different geological stratums during sampling, the anti-falling part is used for limiting movement of the antifouling part, and the inner pipe and the mounting base are rapidly disassembled and assembled through the mounting part. By arranging the antifouling assembly, the gravity sheet is pushed to move upwards during sampling, and the isolation sleeve layer is synchronously pulled up through the traction rope, so that the situation that a sample entering the inner pipe in advance leaves a part of substances to pollute a sample entering the inner pipe subsequently is avoided, and direct contact pollution of residues on the upper layer to a new sample on the lower layer can be effectively prevented; the self thrust of the sample is used as a power source, passive automatic triggering is achieved, the purity of the samples at different stratum interfaces can be particularly protected, and help is provided for investigation and judgment results.

The present application belongs to the technical field of geological exploration, and particularly relates to a geological exploration sampling and drilling device and a method thereof. The method comprises single-time drilling to a target depth, layer-by-layer sampling according to layer position time sequence; collecting sample physical property parameters and generating a cleaning strategy; performing channel cleaning time sequence operation; detecting residual concentration value and component feature vector, comparing with the component feature vector of the sample of the previous depth layer position, calculating cross-contamination probability; if the cross-contamination probability is lower than a preset threshold, the cleaning is up to standard, otherwise, an upgraded cleaning strategy is executed; and a digital traceability archive is established. The device comprises a sampling and drilling mechanism, a depth positioning module, a sampling channel control valve group, a sensor group, a cleaning unit, a time sequence control module and a traceability coding module. The present application overcomes the defects of fixed and unchanged cleaning strategy, incomplete cleaning or over-cleaning in the prior art through adaptive adjustment of the cleaning strategy.

A method for evaluating the degree of contamination in which an evaluation device (100) evaluates the degree of contamination of a water-repellent coating film (P), the method comprising acquiring first measurement data obtained by measuring the unevenness of the surface of the coating film, acquiring second measurement data obtained by measuring the unevenness of the surface of the coating film after the water-repellent coating film (P) is exposed to a dust environment, calculating the difference between the first measurement data and the second measurement data, and evaluating the degree of contamination of the water-repellent coating film (P) on the basis of the difference.

The present disclosure provides an exemplary process for a system that may remove particulate from industrial fluids using a Particulate Removal System (“PRS”). In some aspects, this system may treat water pulled from different Industrial Fluid Systems (“IFS”) while doing continuous monitoring and quality tests of the water. In some embodiments, the system may use sensors and other technology to allow for the system to periodically self-clean itself allowing for maximum efficiency and accuracy while also cleaning the water from the IFS. In some implementations, the water from the IFS may be separated through a Particulate Trap Mechanism (“PTM”) to ensure that particulate including dissolved material has been removed from the water and separated from possible contamination throughout the system. In some aspects the system may be used for continuous and direct measurement of water quality and automatic chemical level adjustment by systems to maintain a desired range or setpoints.

This invention relates to the field of nuclear, biological, and chemical (NBC) contamination decontamination, specifically to a NBC decontamination site and method. This invention cleverly integrates public sports venues with emergency decontamination functions through a site-adaptive module. Equipped with standardized transport interfaces, it facilitates rapid deployment using conventional transportation tools, enabling the construction of sufficient decontamination areas in a short time. When folded, its compact form supports multi-layer stable stacking, significantly saving storage space. The modular water system, combined with gradient drainage and waterproof construction, utilizes the natural elevation differences of the site to form a closed-loop water system, ensuring efficient decontamination and preventing wastewater overflow. A built-in residual water treatment device facilitates rapid cleanup after operations, allowing the site to quickly return to its sports uses. This effectively overcomes the shortcomings of fixed decontamination facilities being idle during normal times and the limited capacity of mobile equipment.

A method for cleaning containers (10), wherein containers (10) are transported by means of a transport device (2) and fed to a cleaning device (4) for cleaning the containers, and this cleaning device (6) cleans the containers (10), in particular by applying a free-flowing cleaning agent to the containers, characterized in that the containers (10) to be cleaned are inspected, and at least one first value (V1, V2, V3) is determined which is characteristic of a degree of soiling of an inspected container (10) or a degree of soiling of a group of inspected containers, and the cleaning device (6) cleans the containers (10) to be cleaned or the groups of containers to be cleaned taking into account the first value (V1, V2, V3), wherein differently soiled containers (10) are cleaned differently.

The present invention relates to a cleaner having a turbidity correction function and an operation method therefor. The cleaner having a turbidity correction function, according to one aspect of the present invention, comprises: a turbidity sensor unit for measuring a contamination level of washing water sucked in through a suction pipe; and a processor unit that calculates the contamination level of the washing water by correcting the measured contamination level of the washing water with reference to a preset reference contamination level.

The invention is directed towards methods, compositions, and apparatus for accurately detecting the presence and amounts of contaminants in wastewater. The method comprises the steps of adding to a volume of wastewater at least one tracer molecule, observing the tracer for indications of particular contaminants, conducting at least one second form of contamination detection, and interrelating the two measured properties to identify the specific composition of the contamination. Using a tracer molecule allows for the detection of otherwise hard to detect oils and grease. Use of the second method however compensates for tracer interfering contaminants and allows for more accurate readings. The invention includes feeding of functional chemicals in response to the detections and conducting the detections online and continuously.

In one embodiment, contamination detection includes attaching a front-facing side of a detector enclosure to a ripper of a ripper machine. The detector enclosure includes a rear-facing side having a rear-facing window, two lateral-facing sides, and a bottom-facing side. A detector is disposed inside the detector enclosure. The ripper is inserted into a soil to position the rear-facing window, the two lateral-facing sides, and the bottom-facing side of the detector enclosure below a soil surface of the soil. The ripper is moved horizontally through the soil leading with the front-facing side of the detector enclosure to detect subsurface contamination via the rear-facing window using the detector.

The invention relates to a device (100) for determining a state of a system component (102) of a conveying system (104) for conveying bulk material, comprising: at least one measuring device (108) for measuring, in particular automatically, at least one contamination parameter that describes at least one cause of contamination present in the conveying system (102); and an evaluation device (110) which is configured to determine, in particular automatically, the state of the system component (102) on the basis of the at least one contamination parameter determined by the at least one measuring device (108). The invention also relates to a conveying system having such a device (100) and to a corresponding method for determining a state of a system component (102) of a conveying system (104) for conveying bulk material.

The invention relates to a door device (1) for a first closed space, which enables a sealed connection between the first closed space and a second closed space, comprising a flange (2) defining an opening to the first closed space, a door (4) mounted on the flange (2) by means of a hinge, a member for fixing the flange of the second space pressed against the flange of the first space, comprising a lock catch (8) which is movable between an unlocked position in which it is embedded inside the flange (2) and a locked position in which it protrudes radially from the flange (2) to the opening, whereby the flange of the second space is locked by engaging each lock catch in a notch provided on the peripheral edge of the flange of the second space without rotating the flange (2).

The present invention relates to an article having a contamination-preventing surface and a method for forming a contamination-preventing surface on the surface of an article.

This application relates to a method and apparatus for labeling the degree of contamination of power transmission components. The method includes: acquiring inspection images of power transmission lines; sequentially performing noise suppression, illumination equalization correction, and standardization processing on the inspection images to obtain a standardized sample set to be labeled; inputting the sample set to be labeled into a trained hybrid detection model to output a preliminary detection result containing a first score of cognitive uncertainty; filtering and correcting the preliminary detection result based on the first score to obtain a contamination labeling result for the power transmission components; classifying the degree of contamination in the inspection images within the contamination labeling result to obtain a refined labeling result containing a second score of cognitive uncertainty; and filtering and correcting the refined labeling result based on the second score to obtain the final contamination labeling result for the power transmission components. This method can improve the accuracy of contamination labeling of power transmission components.

Device (100) for determining the state of a system component (102) of a conveying system (104) for conveying bulk material, comprising: at least one detection device (108) designed to determine, in particular automatically, at least one contamination parameter that describes at least one cause of contamination present on the system component (102); and an evaluation device (110) designed to determine, in particular automatically, the state of the system component (102) based on the at least one contamination parameter determined by the at least one detection device (108), as well as a conveying system with such a device (100) and a corresponding method for determining the state of a system component (102) of a conveying system (104) for conveying bulk material.

This invention belongs to the field of visual inspection technology, specifically relating to a method and system for classifying the degree of contamination on post insulators based on multispectral imaging. This invention employs an adaptive convolutional processing method with a lightweight fusion channel attention mechanism to more accurately capture the contamination features on the surface of post insulator skirts. Through a parallel extraction and fusion mechanism of multi-scale features, the generalization and detection capabilities for various degrees of contamination on insulator skirts are greatly improved. Furthermore, the three-dimensional weight design of the parameter-free attention processing method can obtain the precise morphology of tiny contamination areas on the surface of post insulator skirts, thereby improving recognition accuracy. This invention achieves accurate classification and online visualization monitoring of the degree of contamination on the surface of post insulator skirts under complex backgrounds while reducing the number of parameters and computational complexity.

The application relates to a kind of insulator surface contamination degree evaluation method and system, the method comprises: obtaining the leakage current data of real operation insulator under different surface contamination degree, different weather and meteorological condition and corresponding weather and meteorological condition and surface contamination degree;The obtained leakage current data is carried out discrete fourier transform, the spectral characteristic quantity of leakage current is extracted, and the multi-dimensional feature vector combined with weather and meteorological condition data is constructed in combination with spectral characteristics and weather and meteorological characteristics;The deep learning neural network model based on convolutional neural network is constructed;The multi-dimensional feature vector constructed is used as the input of deep learning neural network model, and deep learning training is carried out until the model converges;The surface contamination degree of the insulator to be evaluated is predicted and evaluated using the trained deep learning neural network model.The method and system can improve the accuracy and real-time performance of insulator surface contamination degree evaluation.

A method of controlling the sensor cleaning system includes detecting contamination of an environmental sensor, determining a contamination source of the contamination when contamination of the environmental sensor is detected, and adjusting operation of an air cleaning system of the sensor cleaning system based on the determined contamination source.

Methods and system for identifying individual materials from waste streams are disclosed. A request can be received from a requester to assess waste within a waste container. Media in the form at least one of still images or video streams can be accessed from at least one camera located in association with a waste container. The media can be transmitted to an artificial intelligence (AI) platform for processing to determine the class of individual materials contained in the media and provide identification with a confidence level. A data file containing processing results can be created. A response can be generated and transmitted to the requester that initiated the request. The response can include data that further includes all materials found by the AI platform as contained in the media with a confidence level for each and at least one of an identification of the requester, container identification, and container location.

Described herein is a method for detecting contaminations in a process chamber is provided. The method includes flowing a gas into a process chamber, and igniting a flame in the process chamber at a contact region between the gas a surface in the process chamber. The method may also include measuring one or more properties of the flame using an optical sensor, and identifying a contamination on the surface based on the one or more properties of the flame.

The present application belongs to the technical field of material analysis, and provides a method for measuring the semi-quantitative distribution of impurity contamination amount per unit area and impurity concentration with depth, in order to solve the technical problem of sample material limiting the material to be measured. A quantitative sample and a sample to be measured are prepared: the quantitative sample is a material that can be profiled for impurity concentration distribution with depth by using a standard sample; the sample to be measured and the material to be measured are the same kind of material; the quantitative sample and the sample to be measured undergo the same processing technology, so that the amount of impurities introduced per unit area of the quantitative sample is equal to that of the sample to be measured; the quantitative distribution of the target impurity concentration with depth in the quantitative sample is obtained by using the standard sample, and after integral operation, the target impurity contamination amount per unit area Q1 is obtained; the signal intensity integral value Q2 of the target impurity in the sample to be measured is calculated; the conversion coefficient k = Q1 / Q2 is calculated; and the curve function g(x) of the signal intensity distribution of the target impurity with depth is converted into the semi-quantitative distribution function h(x) of the target impurity concentration with depth by using the conversion coefficient k.

The utility model relates to the technical field of gas detection, in particular to a portable VOCs gas detector, which comprises a detection body and a protective cover, a gas inlet pipe and a protective pipe are arranged at the top of the detection body, the protective pipe is sleeved outside the gas inlet pipe, a placing ring groove is arranged on the detection body at a position corresponding to the protective pipe, the protective pipe is detachably and completely arranged in the placing ring groove, and the protective cover is arranged in the placing ring groove. Or the air inlet pipe is lifted to be higher than the air inlet pipe and is detachably connected into the placing ring groove; the upper part of the detection body is provided with a clamping device, the protective cover covers the upper part of the detection body, and two sides of the protective cover are connected with the clamping device. The protection pipe is detachably arranged in the placement ring groove, when the protection pipe is not needed (when gas is directly detected but muck is not detected), the protection pipe is placed in the placement ring groove, and when VOCs detection needs to be carried out on the muck, the protection pipe is lifted and fixed in the placement ring groove for detection, so that direct pollution caused by direct contact between the gas inlet pipe and the muck is avoided, and the detection efficiency is improved. Use is convenient and flexible, and the service life of the detection body can be prolonged.