你好,欢迎光临济南兰鑫厨房排烟!

产品中心

局部排风罩位置及风速的设计

来源:/添加时间:2018-04-23 13:10:19
局部排风罩位置及罩口风速对局部排风罩的控制效果影响极大。调查中发现,局部排风罩罩口距有害物发生源距离较远,未对准有害物气流方向,局部排风罩罩口被遮挡,罩壳扩张角过小,排风罩罩口风速及控制点风速小于设计中应达到的风速等现象比较普遍。
The position of local exhaust hood and the wind speed of the hood have great influence on the control effect of local exhaust hood. It is found that the distance between the local exhaust hood and the harmful objects is far away, the air flow direction is not aligned with the harmful objects, the local exhaust hood is blocked, the expansion angle of the cover shell is too small, the wind speed of the exhaust hood and the wind speed of the control point are less than the wind speed in the design.
在不影响操作的前提下,排风罩距有害物的距离可以分别拉近0.6m及0.3m; 实测罩口平均风速均为0.3m/s,低于设计应满足罩口平均风速的70%,厨房排烟管道风机,操作位有害物浓度分别超过国家标准的职业接触限值的1.6和2.0倍。
On the premise of not affecting the operation, the distance between the exhaust hood and the harmful objects can be drawn up to 0.6m and 0.3m respectively. The average wind speed of the measured cover is 0.3m/s, which is less than 70% of the average wind speed in the design. The harmful concentration of the kitchen exhaust pipe fan is 1.6 and 2 times more than the professional contact limit of the national standard.
济南厨房排烟管道
在不影响操作的前提下,排风罩距有害物的距离可以分别拉近0.2m和0.1m;实测罩口平均风速仅为0.39m/s和0.82m/s,吸入风速分别为0.20m/s和0.38m/s罩口风速分别低于设计应满足吸入风速的60%和24%,操作位有害物质浓度分别超过国家规定的职业限值的13.4和1.7倍。
On the premise of not affecting the operation, the distance between the exhaust hood and the harmful objects can be close to 0.2m and 0.1M, the average wind speed of the measured cover is only 0.39m/s and 0.82m/s, and the wind speed of the air velocity of 0.20m/s and 0.38m/s, respectively, is 60% and 24%, respectively, and the concentration of harmful substances in the operating position exceeds the national regulations respectively. 13.4 and 1.7 times the fixed occupational limit.
由此可见,排风罩距有害物发生源的距离较远,罩口未对有害物发生源及罩口被遮挡,罩壳扩张角过小,局部排风罩罩口风速及吸入风速过低等已成为影响局部排风罩控制效果的主要原因。
It can be seen that the distance between the exhaust hood and the source of the harmful objects is far away. The cover mouth is not shielded from the source and cover of the harmful objects, the expansion angle of the cover shell is too small, the wind speed of the local exhaust hood and the low inhalation wind speed have become the main reason for the effect of the control effect of the local exhaust hood.
通风工程设备中最才主要的结构式风机,机械通风系统中的空气流动需要的能量一般都由风机供给,常用离心式和轴流式风机。除尘器也是通风工程设备中极为重要的结构设备,除尘结构可以用来分离气体中的各种固体微粒,厨房通风排烟管道,在通风工程设备的系统中主要用于去除风管内的粉尘。在原料破碎、有色金属的冶炼以及粮食加工等等,往往会排出室内含有粉粒状物料的生产原料或产品,对粉尘进行经济回收,具有十分重大爱的经济意义。
The most important structural fan in the ventilation engineering equipment, the energy required for the air flow in the mechanical ventilation system is generally supplied by the fan, and the centrifugal and axial flow fans are often used. The dust collector is also a very important structural equipment in the ventilation engineering equipment. The dust removal structure can be used to separate the various solid particles in the gas, and the ventilation and exhaust pipe in the kitchen is mainly used to remove the dust in the wind pipe. In the process of crushing raw materials, smelting nonferrous metals, and grain processing, the raw materials or products which contain powder and granular materials are often discharged, and the economic recovery of dust is of great economic significance.
感谢您的阅读,此文的文章来源:济南厨房排烟管道更多的内容和问题请点击:我们会继续努力的为您提供服务,感谢您的支持!
Thank you for your reading, the source of this article: Ji'nan kitchen exhaust pipe more content and questions please click: we will continue to work for you to provide service, thank you for your support!

上一篇:安装好离心风机要注意哪些流程?
下一篇:餐饮厨房油烟是如何形成的?

济南兰鑫厨房排烟    电话:15610162918    天天彩票网jamubiohsa.com版权所有
本网站由济南诺商提供技术支持      

本站图片均由网站所有方提供,部分图片来源于网络,如有任何疑问请第一时间与我们联系,未经沟通本站不承担相关法律责任!

免责声明: 本站资料及图片来源互联网文章,本网不承担任何由内容信息所引起的争议和法律责任。所有作品版权归原创作者所有,与本站立场无关,如用户分享不慎侵犯了您的权益,请联系我们告知,我们将做删除处理!