industrial 10 bar steam boiler
Boiler feed water and why the chloride ions required to have fire exhaust pipe: boiler feed water, chlorine ion content, whether the relevant requirements? Why is the boiler steam manifold, set fire to the exhaust pipe? And 10 tons of natural gas boiler, its gas consumption per hour, how much is? These questions are important sites on the boiler products, so the following will give a specific answer, so that we have a correct understanding. 1. boiler feed water, chlorine ion content, whether there are requirements? Boiler feed water, chlorine ion content, so far, no relevant requirements, but in the industry, there are some principles. For example, boiler water, the chlorine content should be controlled at 400mg / L or less, which water supply, should be controlled at 30mg / L or less. Further, the chlorine content in boiler water, should not exceed 20 times the feedwater. 2. Why do you want to set fire on the exhaust pipe of the boiler steam box? This measure has specific reasons, mainly there are two, one for the presence of air emissions from the boiler starts, the second is to play the role of a safety valve for overpressure protection and steam emissions. So, we will do so, so, in normal operation and operation of the boiler, can be guaranteed. 3.10 tons of gas boiler, natural gas, then its gas consumption per hour, how much is? 10 tons of gas boilers, if you are using natural gas, then, that in the calorific value, the equivalent of 6 million kcal. If it's gas consumption per hour, the theoretical value is 700 cubic meters, then, taking into account the thermal efficiency of the boiler, the boiler is running on the operating limits, the actual natural gas consumption it turns out, is about 750 cubic meters.
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Hot water boiler maintenance method which hot water boiler hot water boiler maintenance methods if poor maintenance during outage or maintenance, the harm is great. Thus, the boiler shutdown should first remove the drum, the angle circle header, the internal pipe and the external wall and smoke vertical boiler scale, slag and all dirt. Fouling and cleaning inside the furnace water wall tubes and convection inside the smoke tube Huigou and boiler maintenance should be performed. Around its maintenance methods commonly used the following two methods. 1, wet maintenance: taking with a sufficient concentration of the alkaline solution in contact with the metal surface of the boiler, the alkaline metal surface to form a protective film to prevent corrosion in the metal. Usually of NaOH, Na2CO3 or formulated as protective Na3PO4 solution (NaOH per ton of oven 8 to 10 kg of water was added, Na2CO3 per ton 20 kg boiler water, boiler water Na3PO4 per ton 20 kg). The specific method is: the boiler all valves, baffles, manholes, hand holes, inspection door is locked, then the good previously dissolved NaOH, Na2CO3 or Na3PO4 solution was added to the boiler, the boiler and then filled with demineralized water. Alkali concentration in the furnace is the water released alongside consistent water gas (mainly O2 and CO2), the furnace may be raised Microflame warming (warmed before, the air valve to open the boiler, without air valve, safety valve available Instead of or relief valve) boiling water into the furnace, so that a natural circulation boiler water. After completion of the air valve (relief valve or safety valve) exhaust gas, and then close the air valve (relief valve or safety valve), then turn off the fire. Boiler water once a week should test to ensure that there is excess boiler water alkalinity. If insufficient alkalinity, should be added NaOH, Na2CO3 or Na3PO4.2, dried maintenance: desiccant absorbs moisture, boiler holding surface drying, to prevent corrosion. Lime (CaO) or anhydrous calcium chloride (of CaCl2) are commonly used as a desiccant. Specifically, the following: After the inner and outer surfaces clean boiler, boiler with Weihuo drying, then open wooden box containing a desiccant into the drum, the header, and furnace flue. The amount of the desiccant is determined according to the volume of the boiler (with large lime, in the boiler 2 to 3 kilograms per cubic meter, if anhydrous calcium chloride, from 1 to 2 kilograms). Then close all valves, flapper, check door, hand holes and Manhole prevent intrusion of external moisture. During the maintenance of open manholes, hand holes and door on a regular basis. If the desiccant is invalid, it should be replaced.
Anthracite fired CFB boiler cell without changes to the building. The novel boiler arrangement with a dual furnace outlet provides for a low-risk scale-up. The boiler will operate in the 50% to 100% load range without using supplemental fuel. The expected boiler combustion and emissions performance data are provided. Introduction High-ash anthracite is a primary fuel for coal-fired boilers. CFB power plant boilers were designed to burn the anthracite size fraction of minus 6 mm (about 1/ 4 in.), called anthracite schtib, with an ash content of 15-20%.