4mw gas fired boiler in building materials industry
Gas-fired steam 4mw fired boiler in building materials industry abnormal situation, how should we deal with it? When we use gas steam boiler, failure or abnormal phenomena it is inevitable, but in order not to affect the normal use, in the event of a problem gas steam boiler to be timely processing solutions, then the face of all kinds of circumstances, we should how to handle it? Share some of the ways we deal with unusual circumstances. If only gas steam boiler circulating pump abnormalities, such as its current decreases, the pump outlet pressure back to zero, which indicates no oil pump is idle, it may be caused by oil vaporization. Yang identify the reasons therefore first vaporized measures; such as clogging of the filter circulating pump bypass opening evacuated immediately clean the filter; heat transfer fluid as a result of added aqueous or decomposed gases are not excluded in the system, should immediately open the vent an exhaust valve. Circulation pump pressure constant, the current increases and the flow drops, deterioration of the thermally conductive fluid, the viscosity increased, should be replaced or regenerated. New heat transfer fluid as a result of decomposition of aqueous or excluded gases in the system, should immediately open the vent valve of the exhaust gas. When the current is lower than normal circulation pump, the circulation pump efficiency is decreased, the flow rate decline may be heating pipes plug fouling, stainless steel chain should be cleaned. If the gas steam boiler before and after the filter increased in pressure, the pump inlet pressure drops, the filter may be stuck, the opening of the bypass, disassemble and clean the filter. In addition to its low furnace outlet temperature liquid phase heat carrier, mainly for lack of heat fouling problems, it is timely soot blowing. Gas steam boiler grate more common problem is stuck, there are reasons including breaking grate or the grate off loose pins; coal grate has stuck to metallic inclusions; arched grate; slag is sinking the tip of the grate stuck. In response to this phenomenon, the required reverse hand grate plate debris removal, replacement breaking grate after the start, then jammed as startup, stop the rotation of the reasons detailed inspection to resolve. But also to re-adjust the adjustment screw on both sides of the grate tension, if still does not work, we need to replace the sprocket.
Recently, the Fujian Provincial People's Government formulated and issued the "Fujian Blue Sky win the Battle of three-year action plan to implement the program" (the "Program"), "plan" will fully implement the spirit of the party of nineteen, in strict accordance with the National Ecological environmental protection requirements, adhere to the development of new concepts, rule by the people, respect the source of prevention, treating the symptoms and so on, determined to win the battle of the blue sky.
"Program" Total thirty-nine, according to Xiao Bian finishing, a total of six boilers relevant content for your reference.
1, deepen industrial pollution control. As of the end of 2020, the completion of the sewage pipe catalogs specified in the license issued by the licensing industry issues, increase exceeded, waste-water treatment, fraud and other illegal activities. Promote key industries pollution control upgrades, the focus control area will strictly implement the Ministry of Environmental Protection issued the "Notice on the implementation of air pollutant emission limits in particular", the use of natural gas, Fuzhou, Quanzhou, in principle, two new projects to further promote the building construction ceramics ceramics pollution remediation; Zhangzhou City, the implementation of boiler "coal to gas" project.
2, optimizing energy structure. Until 2020, primary energy consumption control in 142 million to 1.62 million tons of coal, coal in primary energy consumption is reduced to 41.2%, increase the proportion of clean energy to 28.3%.
3, accelerate natural gas applications. Speed up the construction of natural gas infrastructure, improve the natural gas pricing mechanism, to further increase the use of natural gas.
4, an alternative propulsion power. Transportation, construction, industry, food, agriculture, tourism and other fields to accelerate alternative energy work. By 2020 the proportion of energy use accounts for about 29%.
5, deepen the comprehensive improvement of coal-fired boilers. Eliminated, shutting down 300,000 kilowatts of coal-fired boilers environmental performance is not up to energy security. And to carry out comprehensive improvement of the way and central heating coal-fired boiler. Cities above county level out of 10 tons of steam / sales and less coal-fired boilers, no new 35 steam tons / hour of coal-fired boilers.
6, strengthen the construction and management of the combustion zone ban. Each urban renovation to increase the range of high-pollution fuel combustion zone ban according to a division range, and punishes violation of the ban on burning zone management requirements.
7, improve energy efficiency. Dual control sustained energy consumption and working examples intensity. Strict management of energy-saving, energy-saving equipment industry and other key areas of work, to promote energy-efficient technology and low nitrogen products.
8, expand industrial furnaces governance. Localities to develop according to their industrial furnace implementation of comprehensive improvement program for non-compliance of industrial furnaces, small and medium sized furnace gas generator out of efforts to encourage the use of electricity, natural gas and other clean energy.
All cities in Fujian Province will strictly follow the "program" the development requirements of the implementation of the measures, so that the people responsible life, contribute to environmental protection goals.
10 tph WNS series gas-fired fire tube 4mw fired boiler in building materials industry project for chemical industryChangchun Huatao Automotive Plastic Trim Co., Ltd. is an auto parts company mainly engaged in the production of automotive plastic inner and outer trim parts, epp foam parts and engine plastic parts. With its technical advantages, it has reached cooperation with Toyota, FAW Volkswagen and BMW. In the production process of automobile injection molded parts, many processes such as feeding, plasticizing and mold filling have a certain temperature requirement. The boiler as a heat source device plays an important role in its production line.In the face of the increasingly severe environmental protection situation, Changchun Huatao actively responded to the "coal to gas" policy and planned to introduce energy-saving and environment-friendly boilers. After a series of investigations and comparisons of many boiler manufacturers, Changchun Huatao finally purchased ZOZEN's star product of environmental protection - WNS series gas-fired steam boiler. This series of condensing gas-fired boilers is horizontally arranged, compact in structure and small in floor space. The combustion chamber adopts a large-diameter corrugated furnace to reduce the thermal stress and enhance the smoke disturbance, therefore, improving the heat transfer effect. with the advanced low NOx burner, the NOx emissions can be as low as 30mg/Nm3. The spiral finned tube economizer is also installed at the tail of the boiler to reduce the exhaust gas temperature to 60 degrees, and the boiler thermal efficiency can be over 98%. In addition, the boiler's fully automated control system features automatic operation and interlock protection, which meets the requirements for safety and environmental protection of Changchun Huatao production line.
What are the matters needing attention in the retrofit of coal-fired 4mw fired boiler in building materials industry?
With the implementation of the new environmental protection law and the introduction of new standards for the control of atmospheric pollution of boilers, the transformation of coal-fired boilers in various localities has been carried out in an orderly manner, and coal-fired boilers can be transformed into natural gas boilers in the actual operation. Can also be transformed into biomass boilers, but no matter how to reform, in addition to the choice of high-quality coal-fired boiler transformation company, but also need to pay special attention to the following matters.
1. When the boiler is dismantled, attention should be paid to shutting down the blower and stopping operation when the boiler is dismantled, and when the furnace temperature drops to an appropriate temperature, the boiler needs to be dismantled by the relevant parts of the existing boiler to be retrofitted to the coal-fired boiler. Stop the boiler induced fan, chain grate, then the workers enter the furnace from the fire door, remove the original furnace arch of the boiler, clean up the furnace interior, and then remove the main engine and auxiliary machinery of the boiler.
2. Attention to furnace reform is one of the key points in coal-fired boiler reform. The combustion conditions of existing boilers can be improved by reasonable transformation, which can not only accord with the combustion conditions of new fuels, but also play a better role in saving energy. However, it involves re-pouring the furnace, so special attention should be paid to keep the back arch pipe of the boiler away from the center of the flame, so that it will not be burned by the high temperature.
3. Attention should be paid to the modified boiler after a series of projects, such as retrofit of coal-fired boiler, pouring of new boiler front arch and back arch, etc., should be paid attention to after the retrofit of coal-fired boiler is carried out. One of the most important tests is to test the boiler body under certain pressure, and the boiler can be put into use only after the boiler has passed the test and revamped. These are a few things to pay attention to when reforming coal-fired boilers.