Ⅰ 天燃气锅炉房内可以有配电柜吗
天燃气锅炉房内可以安装配套配电柜
Ⅱ 各种配电柜、操作柜上的各种指示灯表示什么
各种百配电柜、操作柜上的各种指示灯不能一概而论,不过有些比较常用的表示方式度:
1、在配电柜中红灯亮问表示电源有电或开关已合闸通电,灭了代表就是没有电或开关断开了。
2、操作柜上红灯表示回停止作业,绿灯表示开始作业,白灯表示有电。
配电柜是配电箱的上一级配电设备,其体积较大,其中可以放入较大的电气设备,所以一般作为中等容量度负荷的配电设备,包括了配电箱、电动机等,其适用知容量在各个工艺领域中有不同,一般在几个千瓦到几十个千瓦。
(2)锅炉房防爆开关箱扩展阅读;
配电板(箱)应用不可燃材料制作;触电危险性小的生产场所和办公室,可安装开启式的配电板;在触电危险性大或作业环境较差的加工车间、铸造、锻造、热处理、锅炉房、木工房等场所,应安装封闭式箱柜;在有导电性粉尘或产生易燃易爆气体的危险作业场所,必须安装密闭式或防爆型的电气设施;配电板(箱)各电气元件、仪表、开关和线路应排列整齐,安装牢固,操作方便。
落地安装的板(箱)底面应高出地面5~10 mm;操作手柄中心高度一般为1.2~1.5m;板(箱)前方0.8~1.2m的范围内无障碍物;保护线连接可靠;板(箱)以外不得有裸带电体外露;必须装设在板(箱)外表面或配电板上的电气元件,必须有可靠的屏护。
Ⅲ 求一位大侠帮忙把论文翻译成英文~100分 谢谢 燃气锅炉房的电气防爆设计 摘 要:通过分析燃气锅炉房事故原
2 accident reason analysis
Analysis of gas boiler room the cause of the accident, there are two possible: boiler ontology explosion, boiler room to explode gas explosion concentration and explosions.
Boiler blast furnace body, because be in, or flue gas mixture in explosive existence, when achieved by fire or explosion limit, boiler heat ignites causing accidents in itself. This point and the national norm of building fire system that conform to the relevant provisions. The actual current boiler proct has considered safe proction measures to avoid it. Qualified gas boiler itself has the explosion-proof process design, such as burner in abnormal situation automatic stop, self-control device also stop output fuel, Gas boiler combustion system higher automatization, including the gas pressure is high, low limit alarm protection, when the control logic where step does not meet the conditions set start corresponding interlock protection.
Avoid the boiler exploded possibility, but still ontology exist above another possibility, can avoid? How to avoid it?
Three measures
In fact in design, according to the boiler design code "and" automatic fire alarm system design code "GB50116-1998 etc standard, we have taken the following measures:
Natural gas pipelines valves, meter, may occur gas leak place, boiler room may proce gas storage proct area [relative density 0.8, it is to be in commonly roof area in these areas], all equipped with combustible gas concentration measurement alarm device, according to combustible gas concentration situation give out sound and light alarm signal and start exhaust fan, when leakage accident concentrations reach explosion limit of the lower limit 50% [this value for reference only], but also immediately close natural air intake ct total intake solenoid valves.
In the boiler room and a natural gas pipeline in and out of the room, the incident, but also with the smoke exhaust fan combustible gas alarm interlocking (start).
Electrical, instrument by cable selection TongXin, not less than 1.5 mm2 minimum section.
Gas radiation tube tube top or the nearby, the lightning rod should be installed above the pipe jacking tip should be not less than 3m, and its scope of protection tube top above not less than 1-m.
Gas pipeline should be static grounding device that, when pipeline as metal materials, and lightning protection or electrical engineering protective grounding wire connected, the measured resistance R more than 4 Ω. In pipe joints, such as the bend, flange, valve and pipe with good place cannot metal contact, also with metal soft line will be both ends jumper.
In the boiler room and a natural gas pipeline in and out of the room door, window take pressure measures.
According to the explosion and fire dangerous environment electrical device design specification "the laws 2.2.2 bar, accord with one of the following conditions may, when the explosion danger area: devin in item 3, in the process of proction use fire equipment near, A combination of these several measures can clearly, electrical equipment selection for the explosion.
At the same time according to the explosion and fire dangerous environment electrical device design specification "the laws 2.2.2 bar, accord with one of the following conditions may, when the explosion danger area devin: the first 2 items, and the highest possible flammable explosive chroma does not exceed 10% of the lower limit, Close air intake ct natural total intake solenoid valves, concentration exceed 10% of the lower limit explosion limit, boiler room near the roof area are gas storage proct area, so lighting lamps and lanterns and switch choosing is explosion-proof type.
4 conclusion
In gas boiler room electrical design, lighting choose explosion-proof lamps, other part adopts the explosion-proof type.
references
[1] boiler design standard. GB50041-1992.
[2] explosion and fire dangerous environment electrical device design standard. GB50058-1992.
[3] the code for fire protection design of buildings. GB50016-2006.
[4] automatic fire alarm system design standard. GB50116-1998.
Ⅳ 天然气锅炉房内电气专业哪些设备需采用防爆型
所有电气又要用防爆电气,比如,防爆开关,防爆灯,防爆风机等。来自南阳中天防爆
Ⅳ 机房专用配电柜是指什么
配电板(箱)分动力配电板(箱)和照明配电板(箱)、计量箱,是配电系统的末级设备。配电柜是电动机控制中心的统称。配电柜使用在负荷比较分散、回路较少的场合;电动机控制中心用于负荷集中、回路较多的场合。它们把上一级配电设备某一电路的电能分配给就近的负荷。这级设备应对负荷提供保护、监视和控制。配电柜的定义[1]分别是指分动力配电柜和照明配电柜、计量柜等配电系统的末级设备。配电柜分级(1)一级配电设备,统称为动力配电中心。它们集中安装在企业的变电站,把电能分配给不同地点的下级配电设备。这一级设备紧靠降压变压器,故电气参数要求较高,输出电路容量也较大。(2)二级配电设备,是动力配电柜和电动机控制中心的统称。[2]动力配电柜使用在负荷比较分散、回路较少的场合;电动机控制中心用于负荷集中、回路较多的场合。它们把上一级配电设备某一电路的电能分配给就近的负荷。这级设备应对负荷提供保护、监视和控制。(3)末级配电设备总称为照明动力配电箱。它们远离供电中心,是分散的小容量配电设备。按结构特征和用途分类:常用配电柜主要开关柜类型:低压开关柜有GGD、GCK、GCS、MNS、XLL2低压配电箱和XGM低压照明箱。主要区别:GGD是固定式,GCK、GCS、MNS是抽屉柜。GCK和GCS、MNS柜抽屉推进机构不同;GCS和MNS柜最要的区别是GCS柜只能做单面操作柜,柜深800mm,MNS柜可以做双面操作柜,柜深1000mm。
Ⅵ 锅炉房配电柜如何检修
应安装封闭式箱柜;在有导电性粉尘或产生易燃易爆气体的危险作业场所,必须安装密闭内式或防爆型的电气设施容;配电板(箱)各电气元件、仪表、开关和线路应排列整齐,安装牢固,操作方便。;落地安装的板(箱)底面应高出地面5~10 mm;操作手柄中心高度一般为1.2~1.5m;板(箱)前方0.8~1.2m的范围内无障碍物;保护线连接可靠;板(箱)以外不得有裸带电体外露;必须装设在板(箱)外表面或配电板上的电气元件,必须有可靠的屏护。
Ⅶ 配电箱安装高度是多少,有没有人知道啊
我也是刚好有接触到这块,这里和你分享下吧,希望对你有帮助。配电板专(箱)应用不可燃材属料制作;触电危险性小的生产场所和办公室,可安装开启式的配电板;在触电危险性大或作业环境较差的加工车间、铸造、锻造、热处理、锅炉房、木工房等场所,应安装封闭式箱柜;在有导电性粉尘或产生易燃易爆气体的危险作业场所,必须安装密闭式或防爆型的电气设施;配电板(箱)各电气元件、仪表、开关和线路应排列整齐,安装牢固,操作方便。;落地安装的板(箱)底面应高出地面5~10 mm;操作手柄中心高度一般为1.2~1.5m;板(箱)前方0.8~1.2m的范围内无障碍物;保护线连接可靠;板(箱)以外不得有裸带电体外露;必须装设在板(箱)外表面或配电板上的电气元件,必须有可靠的屏护。大概就是这样了,很高兴为你解答,祝你生活愉快。
Ⅷ 常压开水锅炉房内是否需要配置防爆配电箱等防爆电气,尤其是燃烧机的电控箱
需要,防爆防潮
Ⅸ 锅炉除尘器防爆的注意事项有哪些
1、设来备密闭:当锅炉除尘器管道与自设备密闭不良时,可能发生因空气漏入或可燃物泄漏而燃烧爆炸。因此,必须保证设备系统的密闭性。
2、厂房通风:要求管道系统达到绝对密闭是不可能的,所以必须加强厂房通风,以保证车间内可燃物浓度不致达到危险的程度。而且对于因设备发生偶然事故或系统发生运行故障时会散发大量可燃气体的车间。应设 置事故排风系统,以备急需时使用。
3、加强可燃物浓度的检测与控制:为防止管道系统内可燃物浓度达到爆炸浓度,应设置必要的检测仪器,以便经常监视系统工作状态, 实现自动报警。在系统风量设计时,除考虑满足净化要求外,还应校核其中可燃物浓度,必要时加大设 计风量,以保证输送气体中可燃物浓度低于爆炸浓度下限。
Ⅹ 锅炉房通风风机如何做防爆处理
呵呵,这个我知道。首先电机要用防爆的,根据你的防爆等级选配防爆电机,2 电路要有穿线管并且连接紧密不能透气,接头要用防爆接线盒,灯要采用防爆灯罩,及防爆开关。