48 results about "Fugitive emissions" patented technology

The invention discloses a storage medium and a CO2 storage site escape emission calculation method, device and equipment. The method comprises the steps that after a target monitoring area is gridded, the emission amount of carbon dioxide escaping from a storage bottom layer to the ground surface in each grid is obtained; accumulating the carbon dioxide emissions of the grids to generate CO2 geological dissipation emissions of the target monitoring area in a preset statistical period; acquiring monitoring data of each preset point location; according to the monitoring data, the emission amount of carbon dioxide escaping in the conveying process of the carbon dioxide separated from the produced gas is calculated through a preset algorithm; according to the CO2 geological dissipation emission and the emission of the carbon dioxide dissipated in the conveying process of the carbon dioxide separated from the produced gas, the dissipation emission of the CO2 storage site is calculated. According to the method, the CO2 geological dissipation emission amount and the carbon dioxide emission amount dissipated in the conveying process are added, and the CO2 storage site dissipation emission amount of the whole target monitoring area in the statistical period is comprehensively and accurately obtained.

An optical gas imaging camera, methods of operating the optical gas imaging camera in a learning mode and in an operating mode, and a compliance auditing system are disclosed, where the optical gas imaging camera has on-board hardware, devices, and software used for generating images of fugitive emissions of a target object along with generating a multitude of other information associated with the time of generating images of the target object, which is all combined into compliance data that can be stored on-board the optical gas imaging camera or transmitted to a central computer in the auditing system. The compliance data is stored and can be retrieved to add additional information such as repair of a fugitive emission or for compliance auditing purposes.

Methods and systems for detecting and measuring gas flow are disclosed in which lidar distance information, acquired during the detection of gas using a lidar sensor, is used together with local wind data to determine a rate of flow for the detected gas. The local wind data, which may comprise one or more vectors or a 3D wind model, may be determined based on prevailing wind data and the lidar distance information, and can use computational fluid dynamics (CFD) models to determine the wind velocity through 3D structures identified using the lidar sensor. The detection of gas flow using the disclosed technology may be particularly useful for the remote detection and quantification of leaks from natural gas (methane) wells and pipelines to locate, quantify and map fugitive emissions.

Computer systems, methods, and apparatuses for estimating changes in gas emissions are described. A computer system can monitor overall emission levels based on sensor output from a plurality of gas sensors in a facility. The computer system can estimate a total emission level over a time interval based on accumulated gas response factor weighted detections of the plurality of gas sensors. Emissions in maintenance activities can be excluded as appropriate. The total emission level can be compared to estimated total emission levels for different time intervals and / or different facilities. The computer system can also be used to compare emissions across multiple facilities or to compare emissions of multiple facilities across multiple regions.

A method of determining a flow rate of airborne matter of a plume from an emission source through a notional surface. The method comprises obtaining a plurality of mass ratio measurements along a sampling surface and determining a mass flow rate of the airborne matter of the plume through at least a portion of the notional surface based at least in part on the plurality of mass ratio measurements, wherein the sampling surface and the notional surface are non-parallel.

A dust suppression composition having a biodegradable liquid; and at least one elastomeric organic resin. A method of reducing fugitive emissions from bulk and granular materials, the method provides preparing a dust suppression composition, the composition having a biodegradable liquid and at least one elastomeric organic resin; and applying the dust suppression composition to the bulk or granular materials.

The invention relates to the technical field of railway transportation, in particular to a dust suppression device for cleaning bulk materials at the bottom of a car dumper, which provides a semi-closed dust control space for manual bottom cleaning operation through the open design of a dust suppression cover and the matching of the dust suppression cover and a chute for cleaning bulk materials at the bottom of the car, effectively prevents a large amount of visible dust generated in the material shoveling process from escaping outwards, and improves the working efficiency. And a plurality of groups of rotary sealing curtain mechanisms consisting of cross rods, rotating pieces and plastic door curtains are arranged in the device, can be pushed away when the bulk cargo door of the carriage is opened, and automatically droop and reset during operation intermittence, so that a dynamic sealing effect is formed, and the safety of the carriage is ensured. Meanwhile, the dry fog dust suppression mechanism arranged in the cover sprays out micron-sized water mist through a main pipe, a connecting pipe and an atomizing nozzle, the water mist is settled after being fully collided with suspended dust and bonded with the suspended dust, and therefore the concentration of dust on the periphery of the feeding port of the chute is remarkably reduced.

The invention discloses a carbon emission refined accounting method for a high-energy-consumption enterprise, and belongs to the technical field of energy conservation and carbon reduction in the high-energy-consumption industry. According to the method, the condition of fugitive emission of smoke in the production process of a high-energy-consumption enterprise is fully considered, and accurate quantification of fugitive carbon emission generated by fuel combustion and fugitive carbon emission generated by using a carbon-containing raw material is realized by adopting an actual measurement method and an emission factor method respectively; and meanwhile, the actual measurement method and the emission factor method are combined to check the emission through the exhaust funnel and the indirect carbon emission, so that the problems of low data accuracy, poor adaptability and the like when the actual measurement method is used for carrying out carbon emission check on high-energy-consumption enterprises are solved, the accuracy of carbon emission check data is effectively improved, and the economic benefit is improved. According to the invention, refined accounting of carbon emission of the high-energy-consumption enterprise and accurate quantification of carbon emission are realized, accurate carbon emission data are provided for the high-energy-consumption enterprise to implement carbon emission management and participate in carbon market transaction, and guidance is provided for the high-energy-consumption enterprise to carry out energy-saving and carbon-reducing work.

1. Name of the product in this design: Portable Total Hydrocarbon Analyzer (1). 2. Purpose of this design: For on-site analysis and detection of fugitive emissions of total hydrocarbon gases. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A recovery unit configured to re-inject lost or fugitive emissions back into a pipeline. These configuration may include a pressure vessel that can hold gas (or other fluid) that might vent to atmosphere from, for example, a valve or like flow control. A pump may couple with the pressure vessel. In use, this pump can draw fluid out of the pressure vessel and pressurize it to inject back into the pipeline, typically downstream of the valve. The pump may utilize upstream pressure as a power source.

Systems, methods, and computer program products for fugitive emission determinations are provided. An example imaging system includes a first infrared (IR) imaging device configured to generate first IR image data of a field of view of the first IR imaging device that include one or more data entries associated with a fugitive emission from an emission source. The system further includes a computing device operably connected with the first IR imaging device and configured to receive the first IR image data from the first IR imaging device, generate spectral absorption data based on the first IR image data, and determine a gas amount associated with the fugitive emission based upon the spectral absorption data. The computing device also determines a leak rate and leak duration of the fugitive emission based upon the determined gas amount and determines a total emission loss based on the same.

Methods and apparatus for fugitive emission detection. In some embodiments, the method can include planning and performing aerial inspections of a plurality of structures within one or more facilities by determining a flight path for a scanning of fugitive emissions from a plurality of structures within one or more facilities. The flight path can cover a set of structure clusters that can be serviced by a base. The method can also include using a computer-implemented clustering method to identify the set of structure clusters that can be serviced by the respective base. The clustering method can be a hierarchical multilevel clustering method. The method can also include scanning the plurality of structures for fugitive emissions using an airborne sensor. The airborne sensor can be mounted to a flight vehicle launched from the base. The method can also include classifying the plurality of structures based on results of the scanning.

Methods and apparatus for fugitive emission detection. In some embodiments, the method can include planning and performing aerial inspections of a plurality of structures within one or more facilities by determining a flight path for a scanning of fugitive emissions from a plurality of structures within one or more facilities. The flight path can cover a set of structure clusters that can be serviced by a base. The method can also include using a computer-implemented clustering method to identify the set of structure clusters that can be serviced by the respective base. The clustering method can be a hierarchical multilevel clustering method. The method can also include scanning the plurality of structures for fugitive emissions using an airborne sensor. The airborne sensor can be mounted to a flight vehicle launched from the base. The method can also include classifying the plurality of structures based on results of the scanning.

The invention discloses a molten steel slag waste heat recovery system and a waste heat recovery method thereof.The molten steel slag waste heat recovery system comprises a slag tank, the tipping direction and angle of the slag tank are controlled through a slag tank tipping table, a slag sliding groove is formed in the tipping direction of the slag tank, and a waste heat recovery mechanism, a conveyor and a roller waste heat boiler are sequentially arranged at a discharging opening of the slag sliding groove; the steel slag treatment system is reasonable in design, the core problems that a traditional steel slag treatment process is poor in environmental protection property and heat of a high-temperature section is difficult to recover are solved in a targeted mode, the closed design is adopted in the system, the heat radiation plate is normally closed to be matched with the stepped heat collection plate, dust overflow and fugitive emission of dust-containing steam are avoided, and meanwhile, the heat recovery efficiency is improved. Three-section heat exchange is adopted, the high-temperature section to the medium-low-temperature section of the steel slag are covered, high-temperature heat which is not utilized in a traditional process is efficiently recycled, and the requirements for energy conservation, environmental protection and solid waste recycling are met.

The invention discloses an ultra-high molecular weight polyethylene fiber fugitive emission tail gas recovery technology which comprises a tail gas collection system, a tail gas treatment system and a control system. The tail gas collecting system comprises a dome type gas collecting hood and a fully-closed gas collecting hood which are arranged at key emission points of the ultra-high molecular weight polyethylene fiber production line, the dome type gas collecting hood is used for collecting tail gas of the emission points which cannot be completely closed, and the fully-closed gas collecting hood is used for collecting tail gas of the emission points which can be completely closed. And the collecting pipeline is used for communicating the dome-type gas collecting hood and the totally-enclosed gas collecting hood with the tail gas collecting system. Tail gas generated in the ultra-high molecular weight polyethylene fiber production and preparation process can be collected in a non-sealed environment through the dome type gas collecting hood, tail gas in the tail gas concentrated discharge pipe is conveyed and collected in cooperation with the sealed gas collecting hood, unorganized discharge of the tail gas is effectively avoided, the tail gas collecting and treating efficiency is improved, air pollution is avoided, and the environment is protected. And the tail gas is subjected to multi-layer purification so as to be recycled.

An optical gas imaging camera, methods of operating the optical gas imaging camera in a learning mode and in an operating mode, and a compliance auditing system are disclosed, where the optical gas imaging camera has on-board hardware, devices, and software used for generating images of fugitive emissions of a target object along with generating a multitude of other information associated with the time of generating images of the target object, which is all combined into compliance data that can be stored on-board the optical gas imaging camera or transmitted to a central computer in the auditing system. The compliance data is stored and can be retrieved to add additional information such as repair of a fugitive emission or for compliance auditing purposes.

A method and system for locating and quantifying fugitive gas emission leaks includes obtaining gas sensor data and wind direction data from a plurality of sensors and weather stations located proximate a given area of interest. The gas sensor data and the wind direction data is validated to remove erroneous values and to merge the gas sensor data with the wind direction data to provide time synchronized gas sensor data and wind direction data over a given time interval. The time synchronized gas sensor data and wind direction data is segmented for each gas sensor location into wind direction bins containing a concentration of the gas levels in each bin. The area of interest is divided into a grid of cells and the bins projected on the grid cells for each gas sensor location along with the level of gas contained in the bins. The grid cells are then grouped into one or more contiguous grid cells having gas levels above a predefined level and a boundary area is calculated containing the grid cells with a gas level above a threshold to identify a potential leak area. The potential leak area is matched with a prior calculated leak area to identify the source location of the emission leak.

Apparatus to prevent fugitive emissions in rotary valves are disclosed herein. An example apparatus includes a rotary valve including a valve body, a flow control member, and a valve shaft coupled to the flow control member. The apparatus also includes an actuator including a rod that is movable in a linear direction, and a mounting housing coupled between the rotary valve and the actuator. The valve shaft and the rod extend into the mounting housing. The apparatus includes a linkage to convert linear motion of the rod to rotary motion of the valve shaft. The apparatus system also includes a bellows disposed around a portion of the rod in the mounting housing. The bellows is coupled to the rod and the mounting housing to prevent fugitive emissions from the mounting housing.

A measurement equipment for measuring gases and environmental parameters, made up of sensors (4) for measuring the parameters that influence air quality, odors, leak detection, fugitive emissions, pollutants, the presence of certain gases in the atmosphere, etc., having a housing (1) configured to incorporate removable cartridges (3) in which sensors (4) are housed, associated in an assembly unit with respective specific electronic boards (5) which are connected to a central electronic board (6) arranged in the housing (1) that recognizes the sensors (4). A cartridge (3) configured to be coupled to the measurement equipment for measuring gases and environmental parameters.

The invention relates to a painting device and a painting method of a horizontal flat wire enamelling machine, and belongs to the technical field of enameled wire production. According to the technical scheme, a paint return box is arranged below a paint return channel below a mounting plate, the bottom of the paint return box is an inverted-V-shaped bottom, and a first paint return pipe and a second paint return pipe are arranged on the two sides of the paint return box respectively and connected with a paint adding valve set; the painting box is arranged on the mounting plate, the first paint liquid cover plate, the second paint liquid cover plate, the mold frame and the painting mold are covered with the painting box, the painting box and the paint returning box are both tightly connected with the mounting plate, and a closed structure is integrally formed. The device has the beneficial effects that the whole structure is compact and environmentally friendly, adjustment and use are convenient, energy consumption is reduced, and the pollution risk in the circulation process is reduced; the compact and flexible painting mold frame and the relatively closed paint return box design structure solve the problems of long paint liquid exposure time, large paint return amount, prominent workshop inorganized emission and the like in the production process of the enameled flat wire.

The invention relates to the technical field of smelting environmental protection, in particular to a smelting furnace annular flue gas purification and recycling device and method. According to the technical scheme, a flue gas collecting box is communicated with a feeding port of the roasting furnace through an air supply pipe, an annular dust collecting bag-type dust collector and a purifying bag-type dust collector are sequentially communicated, and the flue gas collecting box is connected back to the air inlet end of a fan at the bottom of the roasting furnace and is used for collecting sulfur-containing flue gas leaked from the feeding port; retaining sulfur dioxide through two-stage dust removal; purified sulfur-rich flue gas is sent to the bottom of the furnace for reuse; the flow is controlled through the adjusting mechanism to stabilize the pressure of the collecting box; and automatic closed feeding is realized. According to the method, a traditional dust removal and desulfurization terminal treatment mode is overturned, an expensive desulfurization procedure is omitted through collection, dust removal and recycling modes, internal circulation of sulfur resources is achieved, the problem of unorganized emission is thoroughly solved, meanwhile, the air inlet purification air quantity of a furnace bottom fan is reduced, the operation cost is greatly reduced, and the method is suitable for industrial production. And excellent environment-friendly and economic benefits are achieved.

The invention discloses equipment for producing high-strength steel through thin-strip cast rolling and a production process, and belongs to the technical field of metal material machining. The following functional units of a thin strip continuous casting unit, a sealing secondary cooling and guiding unit, an on-line hot rolling unit, an on-line mechanical descaling and surface treatment unit, a first finishing and hot coiling unit, an inlet buffering and connecting unit and an on-line cold rolling unit are sequentially arranged in series in the advancing direction of the equipment. The online slinging and descaling unit is adopted to completely replace a traditional hydrochloric acid pickling process, oxide scales on the surface of strip steel are removed in a physical and mechanical mode, and the problems of unorganized discharge of acid mist, generation of waste acid liquor and subsequent expensive treatment of the acid mist are completely eradicated from the source; the production site is environment-friendly, zero generation of waste water and waste gas pollution is realized, inherent quality defect risks such as hydrogen embrittlement, over-pickling / under-pickling and the like in the pickling process are thoroughly avoided, and the intrinsic safety and quality consistency of the product are improved.

A method includes determining where to place one or more devices at a site. Each device includes a first sensor configured to measure a concentration of a greenhouse gas (GHG). The method also includes measuring the concentration of the GHG with the first sensors. The method also includes quantifying a rate that the GHG is emitted based at least partially upon the measured concentration of the GHG. The method also includes determining a location of a GHG-emitting source at the site that is emitting the GHG that is measured by the first sensors. The location is determined based at least partially upon the measured concentration, the quantified rate, or both. The method also includes identifying the GHG-emitting source at the determined location by comparing the determined location with a list of a plurality of GHG-emitting sources at the site and locations thereof.

The utility model relates to a tamping type coke oven closed greenhouse, and belongs to the technical field of coke production equipment. Comprising a foundation structure, a supporting structure is connected to the top end of the foundation structure, a closed stainless steel plate is connected to the upper portion of the supporting structure, an unclosed area is formed in the middle of the closed stainless steel plate, a rain baffle is connected to the upper portion of the unclosed area, through holes are formed in the closed stainless steel plate on the front side and the rear side of the unclosed area, and electric skylights are connected to the through holes. An ascending pipe fireproof plate is connected below the supporting structure, a machine-side dust removal pipeline and a coke-side dust removal pipeline are connected below the unclosed area, a dust removal opening in the top end of each carbonization chamber is communicated with the machine-side dust removal pipeline and the coke-side dust removal pipeline, the machine-side dust removal pipeline is connected with a machine-side dust removal header pipe, and the coke-side dust removal pipeline is connected with a coke-side dust removal header pipe; and the machine-side dust removal header pipe and the coke-side dust removal header pipe are respectively connected with machine-side dust removal equipment and coke-side dust removal equipment. According to the utility model, the pollutant emission of the coke oven is controlled from the source, so that the unorganized emission of the coke oven is controlled.

Methods and systems for detecting and measuring gas flow are disclosed in which lidar distance information, acquired during the detection of gas using a lidar sensor, is used together with local wind data to determine a rate of flow for the detected gas. The local wind data, which may comprise one or more vectors or a 3D wind model, may be determined based on prevailing wind data and the lidar distance information, and can use computational fluid dynamics (CFD) models to determine the wind velocity through 3D structures identified using the lidar sensor. The detection of gas flow using the disclosed technology may be particularly useful for the remote detection and quantification of leaks from natural gas (methane) wells and pipelines to locate, quantify and map fugitive emissions.

The present invention provides a carbon capture device for fugitive gases from a silicon carbide smelting furnace and a use method. A telescopic collection cover made of a high-temperature-resistant stainless steel plate is arranged on the periphery of a silicon carbide smelting furnace, wherein adjacent unit structures are in contact in a sleeved manner and can slide relative to each other; one of the outermost unit structures at two ends is provided with a sealing plate or a sealing door, and the other one is connected to a gas extraction connector; the remaining unit structures are open at the front and back; and each unit structure has its own corresponding slideway. Flue gas pipe interfaces are provided on the collection cover and configured to connect to an induced draft fan, a CO storage tank is connected behind the induced draft fan, a CO concentration sensor is provided in the collection cover and is connected to a controller, and the controller is connected to the induced draft fan and controls the rotational speed of the induced draft fan. Carbon capture is completed by means of extracting out gases inside the collection cover for recycling, thus solving the problem of silicon carbide enterprises, i.e., fugitive emissions of gases such as CO.

A fluid connection with ring gaskets of rigid material combined with a seal of relatively deformable material to prevent fugitive emissions and leakage due to minor surface imperfections. A ring gasket and seal assembly includes a ring gasket, preferably made of rigid metals, having a first channel on an inner diameter of the ring gasket, and one or more deformable seals, which are configured to be relatively softer and more deformable than the ring gasket, that are at least partially receivable within the first channel, the deformable seal configured to extend out of the channel to abut one or more tapered surfaces of two connection parts being sealed. Assembly methods and tools to prevent damage to mating surfaces are also disclosed.

This utility model discloses a material level detection and early warning device for an annular cooler unloading trough, comprising: an annular cooler, an unloading trough, and a control system. A discharge port is provided at the bottom of the unloading trough; several support seats are provided on both sides of the unloading trough; a weight detection module is provided at the bottom of each support seat; material level detection modules are provided at both ends of the unloading trough; a trough top sealing module is provided at the top of the unloading trough, and a material layer height detection module is provided on the trough top sealing module; the weight detection module, material level detection module, and material layer height detection module are all connected to the control system. This device can continuously detect the weight of sintered ore in the unloading trough, detect the high and low material levels in the unloading trough, continuously detect the soft seal at the top of the unloading trough, and continuously detect the material layer height inside the unloading trough, avoiding errors and misjudgments that may occur with a single detection method, enhancing detection accuracy, reducing fugitive emissions, and improving the working environment.

Disclosed herein is an apparatus for preventing diffusive emissions in a rotary valve. An example apparatus includes a rotary valve including a valve body, a flow control member, and a valve shaft coupled to the flow control member. The apparatus also includes an actuator including a rod movable in a linear direction, and a mounting housing coupled between the rotary valve and the actuator. The valve shaft and the rod extend into the mounting housing. The device also includes a connecting rod to convert linear motion of the rod into rotational motion of the valve shaft. The apparatus also includes a bellows disposed around a portion of the rod in the mounting housing. A bellows is coupled to the rod and the mounting housing to prevent diffusive discharge from the mounting housing.

The utility model belongs to the field of fluidized bed furnaces, particularly relates to an environment-friendly and energy-saving device for a feed opening of a fluidized bed furnace, and provides the following scheme aiming at the problems that the existing working conditions of employees are bad, raw materials are lost, the production cost is increased, equipment is seriously corroded and the equipment maintenance cost is increased, and the environment-friendly and energy-saving device comprises a fluidized bed furnace body, a fluidized bed furnace smoke outlet is integrally formed in the top of the fluidized bed furnace body, a fluidized bed furnace smoke inlet and an air fan are integrally formed in the bottom of the fluidized bed furnace body, and the air fan is arranged on one side of the fluidized bed furnace body. The return system is put into operation of the device, flue gas and raised dust generated in the process can be returned to the system through negative pressure, and the flue dust is precipitated in the system and reused; flue gas enters the system, so that fugitive emission of the flue gas is avoided; the working environment of staff is improved and the service life of equipment is prolonged.