china application of boiler in pharmaceutical industry
7, energy: energy conservation relations with the costs we use, so we need to choose energy efficient steam china application of boiler in pharmaceutical industry.
8, speed: the speed of start-up speed will affect our production, it is generally not a steam boiler are open every day, every time you start if time is too long, then not only a waste of fuel but also a waste of time.
9, configuration: just a boiler we have to choose, as well as soft water equipment, safety valves, sub-cylinder, pumps and other accessories.
13th of this month, Jiangsu Province, held a working meeting air pollution control, meeting the main objectives and tasks around the year, and plan the next phase of priorities, from morning to promote strict air pollution control this year's tight.
First, in-depth treatment of industrial pollution, dehumidification start off white along the Yangtze River coal-fired power project to promote the electricity, steel, cement, coke, glass, carbon, boilers, furnaces and other key industries the full implementation of the transformation of ultra-low emissions, the province basically completed iron and steel enterprises sintering machine ultra-low emission transformation, cement, coke, glass, carbon industry to achieve the emission limits set provincial requirements.
Works condensing gas china application of boiler in pharmaceutical industry flue gas temperature is one of the basic parameters of the boiler, choose a lower exhaust gas temperature can be reduced boiler flue gas loss, help to improve the thermal efficiency of the boiler. If the boiler flue gas temperature dropped to a low enough level, then the smoke was overheated water vapor will condense and release latent heat of vaporization. Condensing gas boiler is the use of flue gas condensation heat recovery efficiency of latent heat is absorbed in the rear of the boiler flue gas and the sensible heat released by condensation of water vapor, to achieve the purpose of improving the thermal efficiency of the boiler. Condensing gas boiler can be recycled fuel type and boiler water temperature and how much water vapor the latent heat boiler flue gases are using. When the ordinary recovery boiler combustion gas without condensation, the heat efficiency of the boiler if the calculated calorific value of the fuel was 90%, the use of condensing heat recovery unit, the exhaust gas temperature down to 30 ~ 50 ℃, the thermal efficiency will be increased to about 107%. Fuel combustion will produce large amounts of CO2, NOX, and small amounts of SO2, these substances into the atmosphere, causing acid rain and the greenhouse effect, damaging effects on the environment. While condensing boiler flue gas condensate in the water vapor, it can be conveniently removed these harmful substances in the flue gas, therefore, use of condensing gas boiler is also of great significance for the protection of the environment. Choose a lower exhaust gas temperature can be reduced boiler flue gas loss, help to improve the thermal efficiency of the boiler, save energy and reduce operating costs. It is estimated that the boiler flue gas temperature is not higher 13 ℃ heat loss will increase 1%. However, the tail will decrease the temperature of the heating surface of the boiler flue gas exhaust and the heat transfer temperature and pressure working fluid is reduced, the heat transfer area is increased, further, the exhaust gas temperature is too low can also cause severe corrosion of the heating surface. Condensing gas boiler flue gas heat recovery using corrosion-resistant stainless steel production, significantly extended the life of the boiler.
WNS Accident Analysis of dry steam china application of boiler in pharmaceutical industry 1, the low level alarm and interlock protection device is not put into use and the failure is the leading cause of boiler provided with low water level alarm chain protection and low water temperature and smoke alarm device. Prior to the incident, said the fireman did not know the level of low water level alarm and interlock protection device has failed. Only because of the economizer outlet flue gas temperature exceeds its limit emerging (designed for 150 ℃), resulting in constantly ringing alarm bells. Fireman turned off the alarm, low water level chain protection device is also close together. Incident, fireman not effectively remind the water, the boiler continues to operate in the case of water, until the drum from collapsing, cracking convection tube squib. Therefore, the low water level alarm and interlock protection device is not put into use and failure is the primary cause. 2, fireman staff is not strong sense of responsibility and lack of experience is a secondary reason for not timely fireman check the health of the boiler, the water level of the false appearance also have not been ascertain. Even if the water level remains normal, but with fireman experience, should determine the average time in Sheung Shui and take appropriate screening measures, so that when the value is less than the fireman experience or did not do to duty. If you regularly observed from the observation hole to the boiler, you can discover the colors and deformation heating surface, and to take action if the boiler severe water shortages. Flue gas temperature alarm occurs first, without making fireman ascertain the cause, any breach of the rules is closed. Moreover, since a long time to eat off-site procedures are also not shift, so this is the responsibility fireman accident. 3, poor management, poor leadership and management is another secondary cause 1) as companies focus only on the production of steam consumption usually very strict, while ignoring safety management, there is no factory fireman personnel safety training. 2) The enterprise security managers no security certificate management, and knowledge of low water level and low water temperature alarm and smoke interlock protection device is not put into use, nor hamper it. 3) flue gas temperature alarm limit adjustment protracted problem, which is not as competent leadership and a great relationship. 4) boiler room management system, check system is not perfect, no preventive maintenance program, so that long-term drain valve leakage state; while the setting of boiler maintenance system, but not implemented, resulting in low water level alarm and interlock protection device is in low water failure state.