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GMP车间净化公司保持净化工程压力差应遵循哪些原则

来源:http://www.henganjh.cn │ 发表时间:2019-08-28 

  对于大多数建筑净化工程来说,为了防止外部污染的侵入,内部压力(静压)需要高于外部压力(静压),才能正常运行。那么净化工程压差维护需要遵循哪些原则呢?
  For most building purification projects, in order to prevent the invasion of external pollution, the internal pressure (static pressure) needs to be higher than the external pressure (static pressure) in order to operate normally. So what principles should be followed in pressure differential maintenance of purification engineering?
  净化工程压力差的维护一般应遵循以下原则:
  Maintenance of pressure difference in purification engineering should generally follow the following principles:
  1. 净化工程的压力大于非洁净空间的压力。
  1. The pressure of the purification project is greater than that of the non-clean space.
  2. 高洁净水平空间的压力比相邻低洁净水平空间的压力大。
  2. The pressure of high-clean horizontal space is higher than that of adjacent low-clean horizontal space.
  3.打开干净房间之间的门,进入一个更干净的房间。
  3. Open the door between clean rooms and enter a cleaner room.
  净化工程压差的维持取决于新风量,新风量可以补偿该压差下间隙漏气。因此,压差的物理意义是指洁净室中空气通过各种缝隙的泄漏(或渗透)阻力。
GMP车间净化公司
  The maintenance of pressure difference in purification project depends on fresh air volume, which can compensate for the gap leakage under the pressure difference. Therefore, the physical meaning of pressure difference refers to the resistance of air leakage (or permeation) through various cracks in the clean room.
  GMP车间净化公司保持净化工程压力差应遵循哪些原则
  What Principles Should GMP Workshop Purification Company Follow in Maintaining Pressure Difference of Purification Engineering
  净化工程中的风速调节
  Wind Speed Regulation in Purification Engineering
  这里讨论的风速是指洁净室内的风速,其他洁净空间的风速将在讨论具体设备时进行说明。
  The wind speed discussed here refers to the wind speed in the clean room. The wind speed in other clean spaces will be explained when discussing specific equipment.
  由于紊流洁净室主要依靠空气稀释来降低室内污染程度,所以主要采用改变空气频率的概念来代替速度的概念。然而,室内风速也需要满足以下要求。
  Because turbulent clean rooms mainly rely on air dilution to reduce indoor pollution, the concept of changing air frequency is used to replace the concept of speed. However, the indoor wind speed also needs to meet the following requirements.
  (1)送风口气流速度不宜过大。与纯空调房间相比,要求有更快的速度衰减和更大的扩散角。
  (1) The air velocity of the air supply outlet should not be too high. Compared with pure air-conditioned rooms, faster speed attenuation and larger diffusion angle are required.
  (2)水平面上吹过的气流速度(如侧进料回流速度)不宜过大,以免将表面颗粒吹回气流,造成二次污染。一般情况下,速度不应大于0.2m/s。
  (2) The velocity of air flowing through the horizontal surface (such as the velocity of side feed return) should not be too high, so as not to blow back the surface particles to the air flow and cause secondary pollution. In general, the speed should not be greater than 0.2m/s.
  对于平行流净化工程的习惯认为层流净化工程),由于主气流“活塞”挤出染色线,所以截面上的速度非常重要。过去有20 gb的标准参照美国,以0.45 m/s。但人们也明白,这么大的风速要求通风速度是很大的,为了节约能源,也在探索降低风速的可行性。
  For parallel flow purification engineering, it is customary to think that in laminar flow purification engineering, because the main flow "piston" extrudes the dyeing line, the speed on the cross section is very important. In the past, there were 20 GB standards referring to the United States, with 0.45 m/s. But people also understand that such a large wind speed requires a great ventilation speed, in order to save energy, is also exploring the feasibility of reducing wind speed.
  以上是GMP车间净化公司为大家整理的相关内容,想要了解更多内容,欢迎访问网站:http://www.henganjh.cn
  The above is the related content of GMP workshop purification company. For more information, please visit the website: http://www.henganjh.cn.

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