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Whether it is coal-fired boilers will be replaced by gas-fired boilers, gas boilers will be replaced or the nitrogen oxide emissions lower Ultra Low NOx boilers, lies the key to the transformation of the burner. So, when the boiler during low nitrogen transformation, commissioning and maintenance of gas burners should pay attention to what aspects of it, today shared by the fast boiler small series, and to the right.
6 tph WNS series condensing gas-fired steam boiler mitsubishi price list philippines for battery industryIn the technological process of the battery production, many key links are inseparable from the heat source provided by the boiler. Whether the boiler operation is stable and efficient will directly affect the efficiency of the battery enterprise. Harbin Coslight Battery Co., Ltd. was established in 1997. It mainly produces lead-acid batteries and accessories. It is currently one of the largest manufacturers of valve-regulated sealed lead-acid batteries in China. With the continuous development of foreign markets, Coslight battery has been in short supply, and the production capacity has been further expanded and upgraded.In 2014, Cosligtht Battery and ZOZEN achieved the first cooperation and Cosligtht Battery was very satisfied with the performance of all aspects of the boiler system. After then, Cosligtht Battery purchased several sets of WNS series boilers fueled by clean energy natural gas to meet the expanding production capacity and the strict environmental protection regulations in 2016 and 2017. This series of gas-fired steam boilers has a large-diameter furnace space and is equipped with an advanced low NOx burner to easily achieve low emissions of NOx ≤ 30mg/m³ with excellent environmental performance. Not only that, the full-corrugated furnace of WNS series gas-fired boiler has good thermal expansion, which ensures the safety of the boiler as well as expanding the heating surface. With the energy-saving devices added at the tail of the flue, the exhaust gas temperature can be reduced to 60 degrees and the thermal efficiency is as high as 98%.
Recently, Hangzhou Provincial People's Government for the quality of atmospheric environment issues issued a deadline for compliance plan, as follows.
First, the situation and challenges
Since the "Atmospheric ten" implementation of Hangzhou to build an ecological civilization as a guide to improve the quality of atmospheric environment as the goal, carry out air pollution prevention and control actions to protect the G20 summit in Hangzhou as an opportunity to promote a strong "coal-fired flue gas, industrial emissions , vehicle exhaust, dust gray gas, urban and rural exhaust "other" gas cohabitation ", strengthen regional joint prevention and control, air pollution control and achieved remarkable results, no built coal-fired thermal power, iron and steel producers no, no emission vehicles "three noes" urban atmospheric environmental quality continues to improve.
(A) Key Performance
1, ambient air quality improved significantly.
In the case of the national economy with an average annual growth of 9.1% of the "second five" major pollutants emission reduction achieved remarkable, sulfur dioxide, total nitrogen oxide emissions compared to 2010, respectively, decreased by 21.9%, 26.5%, exceeding the state-assigned the reduction targets and tasks.
2, energy and industrial structure gradually optimized.
The city's total energy consumption growth narrowed year by year, total energy consumption in 2015 was 39.48 million tons of standard coal, an average annual increase of "Twelfth Five-Year" period is only 3.4%, compared with the "Eleventh Five-Year" down 2.1 percentage points.
3, industrial pollution prevention deepened.
Promoting desulfurization and denitrification and dust removal facilities, coal-fired thermal power generating units are completed desulfurization, denitrification facilities, a total of 87 coal-fired thermal power generating units ultra-low emissions transformation.
4. The motor vehicle exhaust pollution prevention and continuous progress.
"Twelve Five" period, and comprehensively promote the yellow car out of work in 2015, the city basically eliminated emission vehicles.
5, comprehensively promote urban and rural waste gas treatment.
"Twelve Five" period, to strengthen the construction site dust management, the establishment of civilized city construction sites and construction dust pollution comprehensive rectification work leading group, the establishment of municipal, district, enterprise level management network.
6, continue to strengthen capacity building.
"Twelve Five" period, the construction of Hangzhou, air pollution control system for continuous improvement, introduced the "Hangzhou pollution prevention provisions of the atmosphere", and the issuance of the annual air pollution control plan and supporting the implementation of assessment methods.
(B) there is a problem
1, ambient air quality improvement into the bottleneck.
In recent years, the effectiveness of atmospheric environmental quality improved significantly, but control "Ambient Air Quality Standard" (GB3095-2012) secondary standards are still gaps.
2. Regional collaborative governance is still run-in period.
The analysis results Hangzhou PM2.5 sources, the contribution to the local discharge air in an urban environment PM2.5 concentration 62% -82%, about 72% on average. Regional transport to urban ambient air concentrations of PM2.5 contribution accounts for 18% -38%, an average of about 28%, in different seasons affect the Hangzhou area varies. A higher proportion of regional transport and complexity of the transmission source region to control air pollution in Hangzhou more difficult to establish and improve regional air pollution is critical institutional mechanisms of joint prevention and control.
3, into the deep water of air pollution control.
In recent years, Hangzhou, air pollution prevention and control work has achieved remarkable success, but there are still many "shortcomings" in the current governance of air pollution, structural, further highlights the deep-seated problems.
(1) optimize the industrial structure needs to continue, heavy pollution in some areas, high energy-consuming industries and the "messy dirty" business issues are still quite prominent.
Total coal (2) Energy consumption is still high, the use of natural gas supply capacity and scale need to be strengthened, industrial parks (industrial parks) are still blind spots of central heating, renewable energy development and utilization efforts still need to increase.
(3) heavy end of the treatment, the light source control and cleaner production, the work of "second five" major emission control measures revolve around the end of pollutants on source control and cleaner production process is still insufficient attention.
(4) With SO2, NOx reduction work continued in-depth, project emissions space shrinking, VOCs emissions is more a lack of technical means, the rigidity of the vehicle population growth, vehicles, ships and non-road mobile machinery and other mobile source pollution control to be a breakthrough. With the difficulty of the work of prevention and control of atmospheric pollution key areas continue to increase, the city is still on air pollution control into the deep water.
4, the basic work is still weak period.
Municipal government attaches great importance to air pollution control work, work-related basis more solid, but there are still many weak links. Hangzhou, organization and leadership of atmospheric pollution control systems should be strengthened, the department division of labor, the working mechanism of collaborative governance needs improvement. Local standards should be further improved, pollution resources and a list of atmospheric pollution still need to be updated regularly.
Effect of gas pressure changes in the gas kotelshchik gas boiler conditions during operation, the gas for combustion to the burner, when gas pressure changes, the change will lead to the gas entering the burner, this will affect the proportion of air and gas, whereby have some impact. The results caused by the gas pressure changes are the following possibilities: 1, hypoxia combustion: gas pressure suddenly increased, it is easy to burn the absence of oxygen occurs, resulting in incomplete combustion of gas, flue gas will be carbon monoxide, thermal efficiency of gas boilers have loss. 2, from the fire: if the gas pressure, the gas stream will cause the gas velocity greater than the burning rate, the flame away from the fire resulting from the flame hole edge called on to develop from the fire. This situation will result in flame or combustion instability, and even lead to security risks. General machinery comes with a high-pressure blast burner control, when the gas pressure exceeds a defined value the active flame protection. 3, the combustion peroxy: this occurs in the gas pressure is reduced, excess air appears, nitrogen and oxygen in the air reaction, resulting in excessive emission of nitrogen oxides. 4, tempering: If the gas pressure is very small, it will cause the gas flow velocity is less than the gas combustion speed, causing the flame tempering, influence the safe operation of the burner. General machinery blast burner comes with a low pressure control, when the gas pressure exceeds a defined value the active flame protection. When the gas pressure exceeds the operating range of the burner, the flame will be deformed, fireman gas boiler can operate normally whether this phenomenon was observed.