Acceptance of low nitrogen renovation project management approach gas-fired boiler for process crude palms in order to successfully carry out the transformation of the company low-nitrogen, low nitrogen transformation and acceptance process will now be regulated in response to acceptance of work under different circumstances, thus does not affect the progress of the company's overall transformation of low-nitrogen, It is organized as follows. The company low-nitrogen transformation acceptance criteria refer to "Beijing Gas (oil) boiler low nitrogen transformation Yijiangdaibu fund management approach" in low-nitrogen transformation acceptance requirements, low nitrogen transformation of the company and the manufacturers signed contracts for acceptance, and a phased acceptance carried out the way, it is divided into the following four stages: prior to acceptance confirmation from the manufacturer, pre-acceptance, government low nitrogen transformation and acceptance, final completion and acceptance. First, the low nitrogen gas boiler renovation project before pre-acceptance confirmation from the manufacturer to achieve the requirements of the contract 1. The actual standard for this type of project, the next step is direct acceptance process. 2. The actual contract can not reach the required standard (manufacturers to lower the acceptance criteria) for such projects, communication with the manufacturers of xx, re-sign a supplementary agreement or contract, according to a new contract or acceptance protocol standards. 3. The actual contract not up to the required standard (manufacturers do not agree or do not allow the government to reduce the acceptance criteria) for such projects, communication by the xx with the manufacturers, to terminate the contract, non-acceptance. Second, a low nitrogen gas boiler renovation project pre-acceptance satisfy items (1 projects above) pre-acceptance required to start the pre-acceptance operates in the following claims. 1.xx after the company confirmed that manufacturers have reached the standard contract, the company launched an internal pre-acceptance, and notify the relevant Division, Center for Technology Management, Operations Management Center attended. 2. Pre-acceptance of the project can be divided into environmental inspection and acceptance of two parts, the project must meet the acceptance requirements of environmental protection (standards and materials), to enter the next "low nitrogen transformation of government acceptance" stage. Unqualified acceptance content, fill out the on-site rectification notice, rectification, manufacturers, construction units, divisions, technical, operational and other relevant units to sign it by the deadline. 3. If the project environmental impact there is acceptance, boiler and other major security issues, not by pre-acceptance; In addition, pre-acceptance by the environmental protection, engineering, pre-acceptance deadline for correction. 4. In response to these contents rectification notice, by the manufacturer or xx arrange the construction unit to develop corrective plan submitted to the relevant divisions, technical, operational management center knows, in order to determine the final acceptance plan. Third, the low nitrogen gas boiler renovation project government low-nitrogen transformation project through the pre-acceptance and acceptance of environmental protection, and acceptance by the Government Division organized low-nitrogen transformation inspection department, relevant content is organized as follows. 1. A low nitrogen acceptance by the division of the transformation EPA invited, and notifies the acceptance time OA xx, center management technology, operation and management center. 2. The notification by the equipment manufacturers xx company to deal with the EPA project acceptance. 3. Technology Management Center, operation and management center according to the situation, coordination, cooperation division of the Environmental Protection Agency to complete the inspection. 4. acceptance by EPA, proceed to "completion and acceptance of the final" stage. 5. If the EPA does not pass inspection, subject to the opinion of the EPA, the Environmental Protection Agency if given a second chance acceptance, arrange for rectification by the Environmental Protection Agency xx grasp, and to give the exact time of commissioning compliance, and older than the Environmental Protection Agency to give the second acceptance time more than 3 days; EPA if not given a second chance of acceptance, the acceptance consequences borne by the manufacturer and by the execution of the contract with reference to the subsequent procedure. Fourth, low nitrogen gas boiler renovation project completed after final completion and acceptance 1. EPA acceptance, notify the manufacturer xx by the company, the construction unit to start the rectification work. Factory or construction unit for rectification according to plan in accordance with the rectification notice requirements. 2. The respective divisions, technical management center, operation and management of the center to collaborate rectification work, with supervision. 3. After the completion of the rectification project, organized by the xx-related divisions, technical management center, operation and management center participate, final completion and acceptance, to complete the transfer.
Center back boiler for process crude palm combustion boiler is preferably small foreign structure, although the two-pass boiler, the heated area is small, but the use of the turbulator charming, the purpose of enhancing the turbulence of the flue gas, disrupt laminar flow boundary wall, reducing the thermal resistance, increasing the heat transfer coefficient, a smaller heating area to achieve the same high thermal efficiency. Lower exhaust gas temperature limit in theory, the exhaust gas temperature can be reduced to very low or even close to the ambient temperature, for maximum thermal efficiency. However, in practice, due to the reduction of the exhaust gas temperature, low temperature corrosion will cause, therefore, the exhaust gas temperature can drop too low, in order to ensure that the wall temperature is higher than the main boiler heating surface flue gas dew point temperature. Therefore, low-temperature corrosion has become a major obstacle to reduce exhaust gas temperature and improve the thermal efficiency of the boiler. Tail auxiliary heating surface increases, further reducing the exhaust gas temperature, fuel gas boiler SZS improve thermal efficiency because the oil, gas type SZS easy to burn the fuel gas boiler air preheater generally not disposed. The economizer means is a common energy, which can be recycled flue gas was able to effectively reduce exhaust gas temperature.
Combustion Adjustment of dual-use oil and gas boiler for process crude palms (Skills) boiler firing was successful, the load can be adjusted to normal operation. At this point, we should always observe the furnace combustion, if there is a bad oil and gas atomization, beating the flame, the flame hit the furnace and the exhaust gas temperature is too high or too low and so, it is timely for oil pressure, oil temperature, of steam, wind, air pressure, steam pressure hanging line adjustments to ensure safe and economic operation of the boiler. Size and load size of hydraulic, pneumatic boiler related to the oil pressure adjusted by adjusting the back pressure or fuel burner to achieve the size, by adjusting the air pressure to achieve the degree of opening of the valve. Adjust the amount of oil, air pressure adjustment load, at the same time, air volume control, must be synchronized to ensure a reasonable match of oil and the amount of wind, so as to achieve economic operation of the boiler. 1, the combustion method of determining boiler fuel gas: C02 content is determined from the flue gases and excess air ratio (1) the combustion quality (2) determines the length of the flame from the combustion quality (3) from the flame color and smoke color determination 2 is good or bad combustion, fuel combustion boiler adjustment method: the normal combustion, furnace flame stability was white orange, generally rumble, or if the flame beating abnormal sound, should adjust the fuel and air volume. If the adjusted still no improvement, it should identify the cause flameout, the measures to be taken and re-ignition.
A few days ago, Handan City issued "on the deadline to complete the nitrogen oxide gas boiler governance" (the "Notice"), clear objectives, tasks nitrogen oxides governance gas boiler, expected to be completed more than 10 steam tons of gas before the end of October this year, low NOx combustion boiler reconstruction. "Notice" to the objectives and tasks of nitrogen oxide gas boiler control, time requirements, safeguard measures have been clearly defined.
First, the implementation of the transformation of ultra-low emissions
By the end of June 2020, the existing non-electrical gas steam boiler, hot water boiler, Stoker stoker furnace and completed the transformation of a low nitrogen combustion, soot, sulfur dioxide and nitrogen oxides reach 5mg / m³, 10mg / m³ , 30mg / m³, the new gas combustion boiler synchronizing means and is mounted low nitrogen meet emission standards. 20 tons of steam / hour or more gas-fired boiler installation atmospheric pollution automatic monitoring facilities, and networking with the environmental protection department, install a distributed control system (DCS system). 20 t steam / hour to be mounted gas-fired boiler exhaust gas nitrogen oxide analyzer.
Second, the phased completion of the task of transformation of governance
10 before the end 2018, to complete the combustion of the transformation Boilers nitrogen over 10 tons of steam, to complete the 1-10 tons of steam (having a steam tons and 10 tons of steam) combustion transform low nitrogen gas boiler before the end of October 2019, 2020 at the end of 6 before completing the transformation of low-nitrogen combustion gas steam boiler 1 ton. Counties (cities, districts) according to the actual situation, to be completed in advance of nitrogen oxides governance gas boiler.
Third, both subsidies and penalties
"Notice" requirement for acceptance of project management, to give appropriate subsidies comprehensive financial subsidies to control air pollution. Due to the unfinished task of governance be ordered to stop production of governance. For excessive emissions, fraud, unauthorized outage environmental protection facilities, waste-water treatment snuck issues such as rectification and punishment according to law; wrongdoing, be held criminally relevant personnel.Free Chat
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