电蒸汽锅炉链条炉中燃料层分段燃烧介绍

电蒸汽锅炉http://www.favoriblog.com/链条炉中,由于燃料层是沿炉排长度分阶段燃烧的,因此,各区段所需的空气量亦不相同。如果不加控制分配向炉膛送入一次风,将使炉排两头的空气量过多,造成炉膛内总的空气过剩系数过大,而使炉膛温度降低,排烟热损失增加。为此把炉排下面的风室分成几个风室。风室系用钢板制作,各风室间互不相通,且都装有调节挡板,运行时,按各段需要的空气量进行分段送风,以改善空气与燃烧的配合,降低排烟热损失。
In electric steam boiler grate, the fuel layer along the length of the stages of combustion grate, and therefore, the amount of air required for each segment is not the same. If uncontrolled distribution of primary air into the furnace,make excessive amount of air at both ends of the grate, causing the furnace overall excess air ratio is too large, leaving the furnace temperature is reduced, increasing the heat losses. To this end the grate below the plenum chamber is divided into several wind. Air chamber system with steel production, between the air chamber are mutually unintelligible, and are equipped with adjustable baffle, running, according to the amount of air required for each segment to segment air, in order to improve co-ordination with the combustion air, reduce exhaust gas heat loss.

电蒸汽锅炉送二次风的目的在于搅混燃烧着的气流,延长其流程,加快流速,从而提高燃烧效率。另外,二次风还能将气流中的部分焦炭吹落到炉排上。二次风一般是由风机将空气送入架设在前拱上的钢制风箱后,通过总的调节风板由风嘴吹入炉内。二次风要求有较高的风速,因此二次风机的风压要比一次风机的高。二次风嘴一般布置在前后拱形成的喉部。炉拱、分段送风、二次风等改善燃烧工况的措施,除用于链条炉外,还可用于其他层燃炉上。
Electric steam boiler feed secondary air mix aimed burning air, extending their processes, accelerate the flow rate, thereby improving combustion efficiency. In addition, the secondary air flow can be blown into the part of the coke on the grate. After the secondary air is normally provided by the fan air into the front arch erected on steel bellows, by adjusting the total wind deflector wind blown into the furnace by mouth. Secondary air require a higher wind speeds,so the secondary fan than a fan of high pressure. Secondary air nozzles are generally arranged around the arch formed in the throat. Furnace arch, segmented air, secondary air and other measures to improve the combustion conditions, except for the grate, but also for the other layer burner.

当电蒸汽锅炉内压力接近工作压力时,准备向外供汽,供汽前锅内水位不宜超过正常水位,供汽时炉膛内燃烧稳定。供汽时应将总汽阀微开启,让微量蒸汽进行暖管,同时将管路上的泄水阀开启,泄出冷凝水,暖管时间根据管道长度 、直径 、蒸汽温度等情况决定。一般不少于是10分钟,暖管时应注意管道的膨胀和管道 支架的情况,如发现有不正常情况应停止暖管,并解除故障和缺陷等管路已热,管路冷凝水逐步减少后,方可全开总汽阀,开启时宜缓慢进行,同时注意各部件有否特殊情况,如有应立即检查,必要时停炉检查。
When the internal electric steam boiler and pressure close to the operating pressure, ready for the steam out, for the steam pot before the water level should not exceed the normal water level, stable combustion in the furnace when the steam supply. When the total steam valve for steam micro open, allowing trace steam heating pipe, while the pipeline of the drain valve open, releasing the condensate, warm-time decisions based on the pipe length, diameter, steam temperature and other conditions. Is generally less than 10 minutes, the situation is heating pipe expansion and pipe bracket should pay attention to the pipe, if there is not a normal situation should stop heating pipe, and lift the faults and defects such as heat pipes have been gradually reducing condensate pipeline after before the total steam valve fully open, the open should be carried out slowly, while paying attention to each part has special circumstances,if any should immediately check, check shutdown when necessary.

电蒸汽锅炉http://www.favoriblog.com/运行时要求做到水位正常、蒸汽压力稳定,保持房的清洁,做好交接班工作,发挥人的因素第一,加强对各机械设备和仪表的观察。确保安全可靠,防止事故发生,注意节约用煤,司炉工应定期总结经验,不断提高操作水平。
Required to achieve a normal level, the steam pressure is stable, keep the room clean and do shift work, the human factor plays first, to strengthen the observation of various machinery and equipment and instrumentation electric steam boiler running. Ensure safe and reliable, to prevent accidents, pay attention to save coal, fireman lessons regularly and continuously improve the operational level.

 


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