15 results about "Nitrogen emission" patented technology

The utility model discloses a low-nitrogen emission structure of a combustion chamber of a natural gas boiler, which relates to the technical field of low-nitrogen emission and comprises a connecting pipe and a cleaning component. An opening is formed in the right side of the lower end of the circumferential surface of the connecting pipe, a discharging frame is fixed in the opening, a connecting flange ring is fixed to the right end of the circumferential surface of the connecting pipe, an adsorption assembly and a fixing assembly are installed at the left end of the interior of the connecting pipe, and the fixing assembly is matched with the adsorption assembly; a rotating assembly is mounted on the circumferential surface of the connecting pipe; the cleaning assembly comprises a fixing strip, a rotating shaft, connecting frames, a fixing strip and bristles, the fixing strip is fixed to the upper end of the interior of the connecting pipe, a rotating hole is formed in the lower side edge of the fixing strip, the rotating shaft is rotationally connected to the interior of the rotating hole, and the two corresponding connecting frames are fixed to the circumferential face of the rotating shaft; smoke can be filtered, nitrogen emission can be reduced, and the inner wall of the pipeline can be cleaned.

The utility model belongs to the technical field of steam generators with ultra-low nitrogen emission, and discloses a steam generator with ultra-low nitrogen emission, which comprises a base, a box body arranged at the top end of the base, a structural groove arranged on one side of the box body, a pair of protective doors hinged to the box body through hinges at the notch position of the structural groove, and a detection table arranged at the top end of the box body, a detection box is arranged at the top end of the detection table, a detection groove is formed in the top end of the detection box, a gas detector is arranged at the top end of the detection groove, and a pipeline is arranged in the detection groove. Through cooperative use of the gas detector, the detection groove and the detection box, flue gas discharged by the steam generator can be conveniently detected, it is effectively ensured that when ammonia escape occurs, related personnel can know and take corresponding solutions at the first time, and the environment is effectively protected; and through cooperative use of the solar photovoltaic panel, the power supply groove and the storage battery, electric power can be stably and effectively provided for the gas detector.

The invention belongs to the technical field of gas emission of terrestrial ecosystems, and particularly discloses a method for measuring respiration and nitrous oxide emission of a facility greenhouse ecosystem, which comprises the following steps: selecting a sampling point at the middle position in a facility greenhouse according to the layout and structural characteristics of the facility greenhouse; a ventilation opening of the facility greenhouse is closed and covered with a heat preservation cotton quilt, so that the facility greenhouse is in a dark closed environment, and gas in the greenhouse is collected through an injector and then stored through a gas bag; collecting the gas sample for multiple times within several hours to form a time gradient; measuring the concentration of carbon dioxide and the concentration of nitrous oxide in the gas sample to obtain gas concentration data, and recording the gas concentration data; according to the gas concentration data and the environment information of the facility greenhouse, the ecological system respiration and nitrous oxide emission rate of the facility greenhouse are determined. The method is suitable for measuring the respiration rate and the nitrous oxide emission rate of the ecological system in the facility greenhouse, the operation is simple and convenient, and the accuracy of obtained data is relatively high.

The application relates to the technical field of water quality treatment, in particular to an intelligent water quality treatment method and device. A target water quality image corresponding to a target sampling point in target water quality is acquired; the target water quality image is input into a preset water quality data determination model, and target water quality data corresponding to the target water quality is output; the target water quality image and the target water quality data are input into a preset nitrous oxide emission amount determination model, and the nitrous oxide emission amount corresponding to the target water quality is output; and based on the target water quality data and the nitrous oxide emission amount, a preset treatment measure corresponding to the target water quality is determined. The timeliness and accuracy of water quality treatment are improved.

A device for collaborative detection of carbon and nitrogen emissions and a method thereof are provided. The device includes an integrating cavity, a single beam laser and a dual beam hybrid laser set at opposite ends of the integrating cavity, and an information acquisition and analysis system. The single beam laser and the dual beam hybrid laser are respectively used to continuously emit and transmit laser beams into the integrating cavity. The single beam laser and the dual beam hybrid laser can achieve simultaneous spatio-temporal high-frequency detection of any concentration of CO2—CH4—N2O—N2 mixed gas in one integrating cavity, and the concentration of CO2, CH4, and N2O can be inverted through the information acquisition and analysis system. This device meets the research demand for simultaneous detection of multiple greenhouse gases under the same path, greatly improving the utilization efficiency of the integrating cavity and saving detection costs.

The utility model relates to the technical field of carbon nitrogen emission monitoring, in particular to a dynamic monitoring device for non-point source carbon nitrogen emission, which comprises a supporting rod, a rotating table is rotatably connected to the top end of the supporting rod, a gas absorption tank is fixedly arranged in the middle of the rotating table, and a photoelectric detector is inserted into one end of the gas absorption tank. A tunable semiconductor laser is inserted into the other end of the gas absorption cell; compared with traditional dynamic monitoring equipment for non-point source carbon and nitrogen emission, according to the dynamic monitoring equipment for non-point source carbon and nitrogen emission, the filtering assembly is arranged at the end of the air pump according to requirements and comprises the mounting cylinder and the end cover, and air can be pumped into the mounting cylinder by starting the air pump; air is sequentially filtered through the grating net, the inner bag, the outer bag and the filter net and then conveyed into the first pipeline, the inner bag collides and rubs on the surfaces of the protruding blocks, and therefore dust accumulation on the surface of the inner bag is reduced, the stability of air circulation and filtering is improved, dust particles entering the first pipeline are reduced, pollution is reduced, and the precision of laser detection is improved.

The invention relates to the technical field of water treatment, in particular to an intelligent water treatment method and device. Obtaining a target water quality image corresponding to a target sampling point in the target water quality; inputting the target water quality image into a preset water quality data determination model, and outputting target water quality data corresponding to the target water quality; inputting the target water quality image and the target water quality data into a preset nitrous oxide emission amount determination model, and outputting the nitrous oxide emission amount corresponding to the target water quality; and determining a preset treatment measure corresponding to the target water quality based on the target water quality data and the nitrous oxide discharge amount. And the timeliness and accuracy of water quality treatment are improved.

The application discloses a long-life, low-nitrogen emission microwave plasma assisted ammonia burner system and method, which comprises a power supply, a microwave head, a circulator, a water load, a three-pin nail, a plasma ammonia burner, a short circuit piston, the plasma ammonia burner comprises a high-frequency igniter, a microwave plasma coupling cavity, a first-stage combustion reaction cavity, a second-stage combustion reaction cavity, a third-stage combustion reaction cavity and a tail gas emission collector. The application utilizes microwave plasma assisted combustion technology, ammonia staged combustion technology and low-nitrogen control technology to realize the long-life, low-nitrogen emission microwave plasma assisted ammonia combustion system, effectively improves ammonia combustion efficiency and reduces NOx emission generated by combustion, and is easy to enlarge to realize industrial production.

The invention discloses a low-nitrogen-emission natural ventilation combustor, which relates to the field of low-nitrogen combustors and comprises a primary air structure, a primary gas structure, a secondary gas structure, a tertiary gas structure, a circulating flue gas structure, an ignition burner, a secondary air structure, a secondary combustion area and an air purging structure. According to the low-nitrogen-emission natural ventilation combustor, the combustion reaction temperature and the reaction rate are reduced, the problem that the combustion air momentum of the natural ventilation combustor is insufficient is solved, unorganized diffusion combustion is restrained, the combustion efficiency is effectively improved, generation of NOx is restrained, multi-layer and multi-direction distribution is adopted for combustor fuel classification, and the combustion efficiency is improved. The combustion stability is enhanced, adjustment and control are carried out according to the use condition, tempering and local high temperature are restrained while high-speed multi-state jet flow and smoke entrainment are adopted, the influence of the environment on the natural ventilation combustor is further restrained, and the natural ventilation combustor has two working modes of natural ventilation and forced air blowing.

1. The name of the product of this design: Nitrogen exhaust port for printer light source. 2. Purpose of the product of this design: The overall product is a printer light source, which is used to irradiate and fix the ink and other materials sprayed from the printer onto the article to be recorded; the part for which protection is requested is its nitrogen discharge port, which is used to discharge nitrogen to enhance the effect of ultraviolet irradiation, which is to fix the ink sprayed onto the article or to solidify the varnish. 3. The key design point of this design product lies in the shape of the part for which protection is sought. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 3. 5. Other situations that need to be explained Other explanations: This design is a partial appearance design, and the part other than the pink covered part in the view is the part that this application requires protection.

The utility model belongs to the technical field of gas water heaters, and particularly relates to a gas distributor for realizing low nitrogen emission and a gas water heater using the distributor. The gas distributor comprises a gas ejector pipe body, the body is provided with a plurality of paired first mounting holes and second mounting holes, and the first mounting holes and the second mounting holes are used for mounting rich flame nozzles and lean flame nozzles and are arranged at intervals in the direction of the body. In addition, a first fuel gas flow channel and a second fuel gas flow channel are arranged in the direction of the main body at intervals and correspondingly communicated with at least one pair of mounting holes, and the number of pairs of mounting holes communicated with at least one flow channel is smaller than four. An electromagnetic valve is installed at the fuel gas inlet and used for accurately controlling opening and closing of different flow channels. The low-nitrogen gas distributor not only achieves low-nitrogen emission, but also has the advantages of being simple in structure, easy to process and manufacture, accurate in gas distribution and the like.

The utility model discloses an FGR low nitrogen emission burner, which comprises a burner, a fire protection cylinder, a heating cylinder, a ventilation box, a heat exchange pipe and a flue gas recycling pipe, the burner is arranged at an inlet of the heating cylinder, the fire protection cylinder is arranged at the front end of the burner, an outlet of the heating cylinder is communicated with an air inlet of the ventilation box, the heat exchange pipe is arranged on the ventilation box, and an air outlet of the ventilation box is communicated with an inlet of the flue gas recycling pipe. An outlet of the smoke recycling pipe extends into the fire protection barrel, a first telescopic joint is arranged between an outlet of the heating barrel and an air inlet of the ventilation box, a second telescopic joint is arranged between an air outlet of the ventilation box and an inlet of the smoke recycling pipe, and a fixed support and a movable support are arranged at the bottom of the heating barrel. According to the utility model, the stability of the combustor during operation at high temperature is improved.

The present invention relates to a low-nitrogen emission submerged combustion gasifier system, belonging to the technical fields of liquefied natural gas gasification and environmental protection. A burner system is designed in which the primary and secondary intake air are rotated in advance by a baffle, a uniform vortex is formed by the main swirl blades and the secondary guide vanes, a water spray device is added to increase the moisture concentration in the flame zone, a blending system and a hydrogen production system are utilized, and hydrogen-blended natural gas is used as fuel, thereby effectively reducing NOx and CO emissions.

The utility model belongs to the technical field of combustors, and particularly relates to a low-nitrogen-emission premixing type combustor structure which comprises a shell, an air inlet mechanism, an air adjusting mechanism, a combustion mechanism, a fire stabilizing mechanism, a premixing mechanism and a control cabinet. The air adjusting mechanism comprises an air adjusting driving assembly and an air adjusting assembly. The combustion mechanism comprises an ignition assembly and a combustion assembly. The premixing mechanism comprises a combustion chamber, a smoke mixing disc and a mixing disc fixing pipe. According to the pre-mixing type combustor structure with low nitrogen emission, through the design of the pre-mixing mechanism, fuel gas, air and part of smoke can be fully mixed before combustion, and combustion sufficiency is guaranteed; a combustion chamber, a flue gas mixing disc and a mixing disc fixing pipe in the premixing mechanism are matched with one another, so that flue gas can participate in mixing, the combustion temperature is effectively reduced, and generation of thermal nitrogen oxides is inhibited and reduced; the premixing mechanism is arranged at the combustion mechanism, a mixer does not need to be specially arranged for the combustor, and the size is reduced.

1. The name of the product of this design: Nitrogen exhaust port for printer light source. 2. Purpose of the product of this design: The overall product is a printer light source, which is used to irradiate and fix the ink and other materials sprayed from the printer onto the article to be recorded; the part for which protection is requested is its nitrogen discharge port, which is used to discharge nitrogen to enhance the effect of ultraviolet irradiation, which is to fix the ink sprayed onto the article or to solidify the varnish. 3. The key design point of this design product lies in the shape of the part for which protection is sought. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 3. 5. Other situations that need to be explained Other explanations: This design is a partial appearance design, and the part other than the purple-red covered part in the view is the part that this application requires protection.