18 results about "Atmospheric emissions" patented technology

A method characterizes gas emissions inside an area bounded by first, second, third, and fourth paths. A first spectrometer transmits a first beam along the first path. The first beam is retroreflected back to the first spectrometer, where it is detected to obtain a first signal. A second spectrometer transmits a second beam along the second path. The second beam is retroreflected back to the second spectrometer, where it is detected to obtain a second signal. A third spectrometer transmits a third beam along the third path. The third beam is retroreflected back to the third spectrometer, where it is detected to obtain a third signal. A fourth spectrometer transmits a fourth beam along the fourth path. The fourth beam is retroreflected back to the fourth spectrometer, where it is detected to obtain a fourth signal. The four signals are processed to identify gas sources inside the area.

A method for measuring furnace temperatures, wherein the method comprises: Obtained (300) radiation measurements from several areas of interest (114) using multiple thermal imaging cameras (150); Measuring (302) a surface temperature using a radiation measurement obtained from an area of ​​interest selected (402) from the several areas of interest, with: Determine (408) an effective background radiation affecting the selected area of ​​interest using radiation measurements obtained from areas of interest other than the selected area of ​​interest; Determine (410) a compensated radiation by removing the effective background radiation from the radiation measurement obtained from the selected area of ​​interest; Correcting (412) the compensated radiation with respect to an atmospheric emission, wherein the correction with respect to the atmospheric emission is determined on the basis of properties of a flame front traversed for the radiation measurement of the selected area of ​​interest, wherein the properties of the flame front include a length of the flame front traversed; and Converting (414) the corrected compensated radiation into the measured surface temperature.

A silencer for an atmospheric emission system of a nuclear power plant belongs to the technical field of steam silencing, and comprises a mounting base, a shell connected and arranged above the mounting base, a resistance structure connected and fixed in the shell and arranged above the mounting base, and a resistive structure arranged at the top of the resistance structure; the resistant structure is communicated with an atmospheric discharge valve of an external main steam system; a gap is formed between the resistive structure and the reactive structure; after airflow noise in the main steam system is suppressed by the resistance structure and the resistive structure in sequence, water vapor is discharged from the top of the shell. The resistance structure and the resistive structure are arranged, so that composite noise can be effectively restrained, simultaneous connection of a plurality of loop drain valves can be achieved on the same mounting platform, the function that a plurality of atmosphere drain valves discharge steam at the same time is achieved, and interference can be effectively prevented from being formed when a plurality of loops discharge steam at the same time.

The invention discloses an acrylonitrile production device sewage and waste gas treatment process and belongs to the technical field of sewage and waste gas treatment. The method comprises the following steps: (1) a nitrile removal process: adding an alkaline substance into condensate of a quadruple-effect evaporator to adjust the pH value, and reacting to obtain nitrile removal process effluent; introducing a first part of atmospheric emissions of an AOGI waste gas incineration system into the nitrile removal process effluent to adjust the pH value; (2) a cyanide breaking process: enabling the effluent obtained in the step (1) to enter a UV / H2O2 advanced oxidation process, and reacting to obtain cyanide breaking process effluent; all atmospheric emissions of a WWI waste water incineration system and a second part of atmospheric emissions of an AOGI waste gas incineration system are introduced into the cyanide breaking process effluent to adjust the pH value; and (3) treating the effluent in the step (2) through an A / A / O process and a biological filter EBF in sequence, and discharging after reaching the standard. According to the treatment process disclosed by the invention, waste is treated by waste, so that sewage and waste gas generated in the acrylonitrile production device can be stably discharged in a standard reaching manner, and carbon and nitrogen emission reduction of the acrylonitrile production device is realized.

The invention discloses a sampling device for waste treatment atmosphere non-point source emission quantification, and belongs to the technical field of gas sampling equipment.The sampling device comprises a sampling ship body, the sampling ship body comprises a cuboid frame with three faces enclosed, hollow quadrangular frames are installed at the two ends of the cuboid frame, and ventilation openings are formed in one ends of the two hollow quadrangular frames; the two hollow quadrangular frames are respectively used as a gas outlet and a gas inlet, the gas inlet is communicated with a gas pump, the gas pump is communicated with a gas inlet corrugated pipe, the sampling ship body is detachably connected with a floating body, the two hollow quadrangular frames are respectively communicated with a Teflon gas pipe, the other ends of the Teflon gas pipes are respectively communicated with different interfaces of a gas path exchange valve, and the gas path exchange valve is communicated with a gas analyzer. Continuous automatic online monitoring of solid and liquid atmospheric surface sources can be realized by loading and unloading the floating body, the defects of limited environment, low time resolution, low automation degree and the like when a traditional gas sampling device is used on the water surface are overcome, and the sampling efficiency, precision and reliability are greatly improved.

The utility model relates to the technical field of boilers, in particular to a biomass boiler flue gas treatment device which comprises a shell, one to three spraying discs and at least one gas distribution disc are arranged in the shell, the spraying discs comprise the first spraying disc, the second spraying disc and the third spraying disc, a flue gas inlet and a flue gas outlet are formed in the outer portion of the shell, and the gas distribution disc is arranged in the shell. The smoke inlet is formed in the side wall close to the bottom of the shell, and the smoke outlet is located in the top of the shell. According to the biomass boiler flue gas treatment device, the particulate matters and sulfur dioxide in the biomass boiler flue gas are efficiently removed through an elaborately designed structure and a technological process. According to the device, particulate matters in flue gas are effectively removed under the combined action of spraying and the dust removal chamber, and sulfur dioxide in the flue gas is further removed under the synergistic action of multi-stage spraying and the gas distribution disc. And the content of particulate matters and sulfur dioxide in the treated flue gas is obviously reduced, so that the requirements of atmospheric emission standards can be met.

To provide an atmospheric emission device and a geothermal power generation system capable of preventing operation stop of a power generation plant due to fracture of an atmospheric emission plate by enabling the atmospheric emission plate to be opened / closed repeatedly.SOLUTION: An atmospheric emission device includes: an atmospheric emission plate capable of emitting steam in a steam turbine or a steam condenser from an atmospheric emission port of the steam turbine or the steam condenser to the atmosphere; an opening / closing mechanism provided directly or indirectly at the atmospheric emission port, and attached to the atmospheric emission plate, which enables the atmospheric emission plate to be opened / closed repeatedly; and a seal mechanism provided at the atmospheric emission port, whose downstream side end surface is positioned on a first reference surface, which is a closed state position, and which press-bonds the atmospheric emission port and the atmospheric emission plate together when the atmospheric emission plate is in the closed state while whose downstream side end surface is positioned downstream of the first reference surface when the atmospheric emission plate is in the open state.SELECTED DRAWING: Figure 2(a)

The present invention relates to a chain grate coal-fired boiler flue gas treatment device and method, the device comprises a reaction tower, one side of the reaction tower is provided with a flue gas inlet, the top of the reaction tower is provided with a flue gas outlet, the reaction tower includes SO X Absorption spray layer, NO X Acidification spray layer, nitric acid absorption spray layer, coordinated dust removal device, flue gas inlet is located at SO X Below the absorption spray layer; at the bottom of the reaction tower there is a SO X Absorption tank, NO X Acidification tank, NO X Absorption tank, SO X Absorption tank, NO X Acidification tank, NO X The absorption tank is connected to SO X Absorption spray layer, NO X Acidification spray layer and nitric acid absorption spray layer are connected; SO X A flue gas liquid holding plate is also provided between the lower part of the absorption spray layer and the flue gas inlet. The chain grate coal-fired boiler flue gas treatment device and method of the present application removes NOx, SOx and smoke pollutants in one tower, with small engineering workload and high removal efficiency, meeting national air emission standards.

A method for characterizing gas emissions includes measuring first and second optical beams to generate first and second absorption signals, respectively. Each of the optical beams is transmitted from a center point and retroreflected back to the center point. Paths of the optical beams define boundaries of a sector. Based on the absorption signals, an emission rate of a gas from within the sector is determined. If the emission rate exceeds a threshold, a third optical beam is measured to generate a third absorption signal. The third optical beam is transmitted from the center point and retroreflected back to the center point. The third optical beam propagates along a path that divides the sector into first and second subsectors. Based on the first, second, and third absorption signals, a location of a source of the gas is identified as being within the first subsector or the second subsector.

The application discloses a wastewater and waste gas treatment process for an acrylonitrile production device, and belongs to the technical field of wastewater and waste gas treatment. The process comprises the following steps: (1) a nitrile removal process: adding an alkaline substance into condensate of a four-effect evaporator to adjust the pH value, and reacting to obtain water discharged from the nitrile removal process; introducing first part of atmospheric discharge of an AOGI waste gas incineration system into the water discharged from the nitrile removal process to adjust the pH value; (2) a cyanide breaking process: the water discharged from the step (1) is introduced into a UV / H2O2 advanced oxidation process to react, and water discharged from the cyanide breaking process is obtained; introducing all atmospheric discharge of a WWI waste water incineration system and second part of atmospheric discharge of the AOGI waste gas incineration system into the water discharged from the cyanide breaking process to adjust the pH value; (3) the water discharged from the step (2) is sequentially treated by an A / A / O process and a biological filter EBF, and can be discharged up to the standard. The treatment process realizes waste treatment by waste, so that the wastewater and waste gas generated in the acrylonitrile production device can be stably discharged up to the standard, and carbon and nitrogen emission reduction of the acrylonitrile production device is realized.

The application discloses a phenol-free polyamide self-adhesive paint for electromagnetic wire coating and a preparation method and application thereof, and comprises a film forming substance and a solvent, wherein the film forming substance comprises aliphatic polyamide resin, bisphenol A epoxy resin, oil-soluble phenolic resin, leveling agent and release agent; and the solvent comprises phenylethanol, butanol, ethanol and propylene glycol methyl ether acetate (PMA). The product manufactured by the application has the advantages of low toxicity and low atmospheric emission pollution, good physical and chemical properties, stable storage characteristics, ideal coating performance, excellent bonding characteristics, moisture resistance, deformation resistance and the like, can greatly improve the occupational health hazards of wire coating operation, and can obtain a green electromagnetic wire product, and has wide market application value.

A method characterizes gas emissions inside an area bounded by first, second, third, and fourth paths. A first spectrometer transmits a first beam along the first path. The first beam is retroreflected back to the first spectrometer, where it is detected to obtain a first signal. A second spectrometer transmits a second beam along the second path. The second beam is retroreflected back to the second spectrometer, where it is detected to obtain a second signal. A third spectrometer transmits a third beam along the third path. The third beam is retroreflected back to the third spectrometer, where it is detected to obtain a third signal. A fourth spectrometer transmits a fourth beam along the fourth path. The fourth beam is retroreflected back to the fourth spectrometer, where it is detected to obtain a fourth signal. The four signals are processed to identify gas sources inside the area.

The present invention discloses a flare cutting machine, which belongs to the technical field of flare decomposition equipment, and comprises a fuselage, a cutter and a turntable driven by a power mechanism, wherein the cutter is fixed to the upper surface of the fuselage, and the edge of the turntable is provided with a slot matched with the cutter; the edge of the turntable is provided with a limiting structure for positioning the flare, and the slot is arranged between the limiting structures; the cutter corresponds to the felt washer at the junction between the flare primer and the starlight body. The present invention places the flare in the limiting structure at the edge of the turntable, and the power mechanism drives the turntable to rotate, and the cutter can be used to cut the felt washer at the junction between the flare primer and the starlight body, so as to separate the flare primer and thus recover the primer. The present invention can completely solve the problem of flare destruction, improve the destruction process of flares, recover copper metal, and have higher military and economic benefits, while improving safety, reducing atmospheric emissions, and reducing environmental impact.

A method for characterizing gas emissions includes measuring a first optical beam to generate a first time series representing a concentration of a gas species. The first optical beam is transmitted from a geographic center point and retroreflected at a first retroreflection location. The first optical beam defines a first boundary of a sector. The method also includes measuring a second optical beam to generate a second time series representing the concentration of the gas species. The second optical beam is transmitted from the geographic center point and retroreflected at a second retroreflection location. The second optical beam defines a second boundary of the sector. The method also includes determining a location of an emission source within the sector. The location is determined based on temporal variability of the first time series and temporal variability of the second time series.

The utility model relates to the technical field of casting dust removal, in particular to a movable pit pouring cooling smoke dust treatment system for a large resin sand casting, which is characterized by comprising a track, a dust removal device and a dust removal device, the travelling crane mechanism is arranged on the track and is used for moving on the track in a reciprocating manner so as to be respectively close to different casting molds placed in a pit; the smoke dust treatment mechanism is fixedly arranged on the travelling crane mechanism and is used for treating smoke dust; and the smoke dust collecting mechanism is arranged on the traveling mechanism and located above the pouring casting mold, the smoke dust collecting mechanism is connected with the smoke dust treatment mechanism and used for sucking the smoke dust into the smoke dust treatment mechanism, the smoke dust, sparks and harmful gas can be accurately collected, and then atmospheric emission pollution is reduced.

This application relates to a method and system for inverting anthropogenic carbon dioxide emission sources based on the carbon-nitrogen homology relationship, belonging to the technical field of carbon pollution synergistic governance and atmospheric emission inversion. The method includes: collecting and preprocessing multi-source data; constructing a carbon dioxide emission source assimilation system based on four-dimensional variational theory; statistically analyzing the proportions of anthropogenic carbon and nitrogen emissions by province and department based on carbon-nitrogen homology constraints, and combining this with high-resolution anthropogenic nitrogen dioxide emission sources through proportional conversion to obtain prior anthropogenic carbon dioxide emission sources. These prior anthropogenic carbon dioxide emission sources, along with the preprocessed multi-source data, are input into the assimilation system for assimilation and inversion. The carbon dioxide concentration obtained from three-dimensional variational assimilation within a buffer region larger than the study area is used as the initial and boundary conditions of the system. A four-dimensional variational algorithm is used to invert and obtain carbon dioxide emission adjustment coefficients, ultimately correcting the data to obtain high-resolution anthropogenic carbon dioxide emission data. This method can achieve accurate inversion of anthropogenic carbon dioxide emissions.

A method for characterizing gas emissions includes sampling each of a plurality of sectors having a common geographic center. For each sector, a first laser beam is transmitted from the geographic center to a first retroreflection location, where it is retroreflected into a first retroreflected beam. Near the geographic center, the first retroreflected beam is measured to obtain a first absorption. A second laser beam is then transmitted from the geographic center to a second retroreflection location, where it is retroreflected into a second retroreflected beam. Near the geographic center, the second retroreflected beam is measured to obtain a second absorption. The first and second retroreflection locations are both located within the same sector. First and second concentrations are determined from the first and second absorptions and processed to determine emission information about a known or potential gas source whose source lies within the sector.