Coal-fired boiler coaxial flue pipe gas conversion costs budget analysis

Under pressure "atmosphere 10" The premise of the policy and the current environmental situation of coal to gas expansion work is now in full swing up. So the transformation of the capital budget for gas fired boiler is how to conduct it? This is basically the transformation of the former coal-fired boilers for each client during prepared to do the necessary work. And today we talk about making a few parties need to pay attention when gas fired boiler reconstruction budget

The frequent attacks on haze weather since last year heralded that the atmosphere had to be managed. Coal emissions are regarded as the culprit of the formation of haze, so the coal-to-gas plan has entered a high-speed growth period in an all-round way. At present, the transformation of natural gas boiler coaxial flue pipe has become the hot first choice for investment environment management industry. According to reporters understand, so far for coal-fired boiler demolition and phase-out has entered a substantive phase of implementation. Since entering the second quarter, many places in the country have issued measures to remove and reform high-pollution coal-fired boilers, and a war of annihilation of coal-fired boilers has been launched in an all-round way. The correlation analysis shows that under the background of energy saving and environmental protection, coal to gas will become the next few years. As a substitute for coal-fired boilers, natural gas boilers will also usher in a high-speed growth period. In addition, the reporter learned that since the second quarter of 2013, in addition to Beijing, Zhengzhou, Xi'an has also dismantled 194 coal-fired boilers; Construction, environmental protection, municipal and other departments of Lanzhou City to reform the urban coal-fired boiler projects jointly approved, has started to demolish 83 units of 1518 steam tons, accounting for 40% of the total task of dismantling; Urumqi, Xinjiang, has put coal into the people's livelihood project as the top priority in the construction of beautiful Xinjiang; dozens of heating stations in Tibet are also actively carrying out the transformation of gas-fired boilers; Jiangsu Jiangyin, which is heavily energy-consuming, has also stepped into clean-energy applications, with 100 coal-fired boilers scheduled to be phased out by the end of the year. As a result, the coal-fired boiler gas conversion project has entered the high tide period.

Recently, in Jiaxing City in Zhejiang Province Nanhu District, officially launched a comprehensive investigation and action on gas boiler coaxial flue pipes and biomass boilers urban built-up areas, and actively promote the transformation of low nitrogen emission gas-fired boiler, Zhejiang Province, determined to win the Battle of the sky made own contribution.

According to the requirements of the investigation, the South Lake district towns, streets, parks within the jurisdiction of the respective gas boilers and biomass boilers urban area to take home from house to house visits Paimo way, the ecological environment Branch area combined with market regulators issuing a list a verification form inventory management. After the statistics were found in the region with gas boiler 35 units, built-up area of ​​biomass boiler Taiwan.

Meanwhile, Nanhu District will be in more than 500,000 cubic meters of natural gas consumption in the four on-site visits to enterprises as a pilot enterprise low nitrogen transformation operations boilers, ecological environment Branch area of ​​personnel, publicity reform provinces, municipalities and low nitrogen emissions on gas-fired boiler requirement that the premise of ensuring safety in production, natural gas boiler NOx emission after the transformation shall not exceed 50 mg / cubic meter, and listened carefully to the enterprise raised about the difficulties of combustion gas boiler low nitrogen transformation exists.

To speed up the investigation and major renovation large boilers, Nanhu District definite time node, before the end of 2019 business model will complete the transformation of low nitrogen gas boiler, at the same time, the city built-up area of ​​biomass boilers implement ultra-low emissions transformation. Nanhu District will adhere to routine inspections and investigation focused on the combination of concentration and control checks and unannounced visits to combine law enforcement when combined with the daily supervision and wrong, and the law enforcement inspection report from the masses combine to ensure long-term monitoring of boiler regulation implemented.

Electric utility interest in supercritical pressure steam cycles has revived in the United States after waning in the 1980s. Since supercritical cycles yield higher plant efficiencies than subcritical plants along with a proportional reduction in traditional stack gas pollutants and CO{sub 2} release rates, the interest is to pursue even more advanced steam conditions. The advantages of supercritical (SC) and ultra supercritical (USC) pressure steam conditions have been demonstrated in the high gas temperature, high heat flux environment of large pulverized coal-fired (PC)boiler coaxial flue pipes.