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    生物质热风炉缺水的解决方法

    2018-11-19 08:55:23 无锡盛发地坪科技有限公司 阅读

    生物质热风炉运行必须保持正常水位。当水位低于最低安全水位线时,称为缺水事故。缺水事故可分为轻微缺水和严重缺水两种。如水位在最低安全水位线以下,但还能看见,或虽然已看不见水位,但对允许采用“叫水法”成都收账生物质热风炉进行“叫水”后水位很快出现时,属于轻微缺水。如水位已看不见,用“叫水法”也不能出现时,属于严重缺水。

    The operation of biomass hot blast stove must maintain normal water level. When the water level is lower than the minimum safe water level line, it is called water shortage accident. Water shortage accidents can be divided into two types: slight water shortage and serious water shortage. If the water level is below the lowest safe water level, but it can still be seen, or although the water level has not been seen, but the water level is slightly short when the water level appears soon after the biomass hot blast stove which is allowed to use the "water-calling method". If the water level is out of sight, when the "water law" is not available, it is a serious shortage of water.

    生物质热风炉缺水事故,如果处理不当,会造成设备严重损坏,如果在生物质热风炉严重缺水成都找人公司情况下进水,就会导致生物质热风炉爆炸。这是因为生物质热风炉缺水后,一方面钢板被干烧而过热,甚至烧红,使强度大为下降,另一方面由于过热后成都收账钢板温度与给水收账温度相差极为悬殊,钢板先接触水成都找人公司部位因遇冷急剧收缩而龟裂,在蒸汽压力的作用下,龟裂处随即撕成大的破口。汽水从破口喷射出来,即造成爆炸事故。

    If the water shortage accident of biomass hot blast stove is not handled properly, it will cause serious damage to the equipment. If the water is fed into the biomass hot blast stove in the case of serious water shortage, it will lead to the explosion of biomass hot blast stove. This is because after the shortage of water in the biomass hot blast stove, on the one hand, the steel plate is dried and overheated, or even burned red, so that the strength decreases greatly. On the other hand, because the temperature of the overheated steel plate is very different from the temperature of the feed water, the place where the steel plate first contacts the water cracks because of the sharp contraction of the cold. Under the action of the steam pressure, the cracks are located at the place where the steel plate first contacts the water. And then ripped into a big breach. Steam water ejected from the breach is an explosion accident.

    下面说下具体情况:

    Below is the specific situation:

    (l)生物质热风炉缺水现象

    (L) water shortage in biomass hot stove

    1)锅内的水位低于最低安全水位或水位计内看不见水位,水位计的颜色发白或发亮。低水位信号报警,信号灯亮起。

    1) The water level in the pot is below the lowest safe water level or invisible in the water level gauge. The color of the water level gauge is white or shiny. Low water level signal alarm, signal light on.

    2)有过热器的生物质热风炉,过热蒸汽的温度不正常地升高,发出超温报警信号。

    2) The biomass hot blast stove with superheater, the temperature of superheated steam rises abnormally, and sends out the alarm signal of overtemperature.

    3)生物质热风炉排娴温度异常升高。

    3) the temperature of biomass hot blast stove is extremely high.

    4)给水流破与蒸汽流址异常。一般情况下是给水流潋小于蒸汽流量,如若有管子或省煤器等发生泄漏时,给水傲虽然增大仍不能维持正常水位,这时给水盈将大于蒸汽流盛。

    4) breaking the water flow and abnormal steam flow. Generally speaking, the feed water weir is less than the steam flow rate. If there is leakage of pipes or economizers, the feed water pride can not maintain the normal water level even though it increases, then the feed water surge will be larger than the steam flow.

    5)生物质成都找人公司严讯缺水时,可以嗅到焦糊味。

    5) when the biomass hot stove is short of water, it can smell burnt.

    (2)生物质成都收账公司缺水的原因

    (2) reasons for water shortage of biomass hot stove

    1)司炉人员违反劳动纪律.撤离职守或疏忽大意,对水位的监视不够。当生物质成都收账公司负荷增大时调整不及时或错误操作。水位报警及联锁保护装置已失灵未能及时察觉。

    1) the stoker staff violated labor discipline, evacuated from duty or negligence, and did not monitor enough water level. When the biomass hot stove load increases, the adjustment is not timely or erroneous operation. The water level alarm and interlock protection devices have failed to detect in time.

    2)司炉人员操作技术水平较低,对水位的判断失误。例如,对生物质热风炉负荷发生突然变化时形成的虚假水位不认识,对水位计因安装不合理或汽水通路堵塞、汽水旋塞开关不到位等原因造成的假水位不会判别,对缺水或满水分辨不清等。这些因素都会造成司炉人员对水位的误判断而导致生物质热风炉缺水。

    2) the technicians of the stoker are relatively low in technical level, and the judgment of the water level is wrong. For example, the false water level formed when the load of biomass hot blast stove suddenly changes is unknown, the false water level caused by unreasonable installation of water level meter or blockage of steam-water passage, inadequate switch of steam-water cock, etc. can not be distinguished, and the water shortage or full water can not be distinguished clearly. All these factors will cause the stoker to misjudge the water level and lead to the lack of water in the biomass hot stove.

    3)给水设备或管路发生故障;不能及时向锅内进水,造成生物质热风炉缺水,例如给水泵损坏等。

    3) Water supply equipment or pipeline malfunction; unable to feed water into the pot in time, resulting in water shortage of biomass hot stove, such as damage to the feed pump.

    (3)生物质热风炉缺水处理方法

    (3) water treatment method for biomass hot blast stove

    1)先校对各水位计所指示的水位;正确判断是否缺水。在无法确定缺水还是满水时,可开启水位计放水旋塞,若无锅水流出,表明是缺水事故,否则便是满水事故。

    1) first check the water level indicated by each water level gauge; correctly judge whether there is water shortage. When water shortage or full water is uncertain, the water level gauge discharge cock can be opened. If there is no pot water flowing out, it indicates water shortage accident, otherwise it will be full water accident.

    2)对于允许实施叫水操作的小型生物质热风炉,可以先进行叫水,判断生物质热风炉是轻微缺水还是严重缺水。这种情况只适用于水位计的水连通管水孔高于受热面的最高火界和水容量较大的生物质热风炉。否则,不能对生物质热风炉进行叫水,因为它就会延误对生物质热风炉缺水事故处理的时间,使事态扩大。

    2) For the small biomass hot stove which allows water-calling operation, water can be called first to judge whether the biomass hot stove is slightly short of water or seriously short of water. This situation is only applicable to biomass hot stove with water connecting pipe water hole higher than the maximum fire boundary of heating surface and larger water capacity. Otherwise, we can't call water for biomass hot stove, because it will delay the time to deal with the water shortage accident of biomass hot stove, and make the situation wider.

    3)生物质热风炉轻微缺水时,应减少燃料和送风,减弱燃烧,并且缓慢地向生物质热风炉进水至正常水位。一般通过调节给水阀的开度和大小,控制进水流速和给水量,注意不要进水过量。在进水过程中要迅速查明缺水的原因(例如给水管、炉管、省煤器管是否漏水或阀门开错等):要及时排除,然后检查生物质热风炉有无异常情况,经确认正常之后;方可恢复生物质热风炉运行。

    3) When the biomass hot-blast stove is slightly short of water, fuel and air supply should be reduced, combustion should be weakened, and water should be slowly fed into the biomass hot-blast stove to normal water level. Generally, by adjusting the opening and size of the water supply valve, we can control the inlet flow rate and the amount of water supply, and we should pay attention not to excessive water intake. In the process of water intake, the causes of water shortage (such as leakage of water supply pipes, furnace pipes, economizer pipes or wrong opening of valves, etc.) should be quickly identified. The operation of biomass hot-blast stove can be restored only after the abnormal situation of biomass hot-blast stove is checked and confirmed to be normal.

    4)生物质热风炉严重缺水时,必须进行紧急灭火停炉。灭火停炉的操作程序按紧急停炉的方法实施,严重缺水时严禁向锅内进水。有的司炉人员在发现生物质热风炉缺水后,采用多次间断进水,每次少量补水的办法来掩盖生物质热风炉的缺水事故。这种做法是非常危险的。采用此法如果生物质热风炉缺水还不太严重,则会造成生物质热风炉漏水。如果生物质热风炉缺水相当严重,则会造成生物质热风炉爆炸事故。因为钢板在无水冷却的情况下干烧,则壁面的温度相当高,此时进水将导致过热的钢板急剧冷却,发生龟裂或爆炸。只有在生物质热风炉自然通风冷却且锅内水温降至70℃以下时,方可缓慢进水。进水至正常水位后,应对生物质热风炉进行全面检查,如无异常情况,才能重新进行点火起动,恢复生物质热风炉的运行。

    4) when the biomass hot stove is seriously short of water, emergency fire and shutdown must be carried out. The operation procedure of fire and shutdown is implemented according to the method of emergency shutdown. Some furnace managers use the method of intermittent water intake and small amount of water replenishment to cover up the water shortage accident of biomass hot stove after discovering the water shortage of biomass hot stove. This approach is very dangerous. With this method, if the biomass hot stove is short of water, it will cause the leakage of water in the biomass hot stove. If the biomass hot stove is short of water, it will cause an explosion of biomass hot blast stove. Because the steel plate burns dry without water cooling, the temperature of the wall is quite high. At this time, the water will cause the superheated steel plate to cool sharply and crack or explode. Only when the biomass hot air stove is naturally ventilated and cooled and the water temperature in the pot drops below 70 C, can the water enter slowly. After entering water to normal water level, the biomass hot blast stove should be inspected comprehensively. If there is no abnormal situation, the ignition can be started again and the operation of the biomass hot blast stove can be restored. 



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