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洁净厂房设计施工如何控制微粒子浓度呢?

1、不携入人、机、料进无尘车间不携入微粒子

1, do not bring into the people, machine, material into the clean room and do not carry these particles

(1)进入无尘车间者在更衣室要穿着不发尘、不产生静电的具特殊导电性纤维材质的无尘服、帽、鞋、手套、口罩等,再通过风淋室吹淋,高速干净的气流可除去附在衣服表面的粒子,吹淋完毕才能进入无尘车间。

(1) into the clean room 'in the locker room to wear no dust, no static with special conductive fiber material clean clothes, hats, shoes, gloves, mask and so on, again through the air shower spray, high speed clean air can remove attached to particles in a garment surface, blow after leaching for bi to enter the dust-free workshop.

(2)机器、材料进无尘车间前,应尽可能在密封状态下带进无尘车间前室保养后用超纯水擦拭,经货淋室吹淋或风淋传递窗吹淋后才能进入无尘车间。

(2) machine, material into the front of the dust-free workshop, should as far as possible in a sealed condition into the clean room antechamber maintenance by ultra pure water wipe, FEMA shower blow drenches or air shower transfer window blow shower before entering the clean room.

(3) clean plant design and construction shall be full closed wear safety helmet and wear with the exhaust filter with a small fan on the waist.

2、不发生无尘车间内动态环境下机、料的不发生控制;

2, no dust free workshop in the dynamic environment of the machine, the material does not control;

在控制最大污染源--人在无尘车间内的微粒子发尘量的同时,也应控制第二大污染源—制造机台的发尘量。因物品在移动时,所产生的摩擦及接触剥离会造成发尘,而物品在移动时也会有微粒子的发生。故为了控制发尘量达到最小限度应采取以下对策:

In control of the largest pollution source - the dust in the dust in the dust of the dust in the dust workshop, but also to control the second pollution sources - manufacturing machine dust. Because of the movement of goods, the resulting friction and contact stripping can cause hair dust, while the goods will have the occurrence of particles in the movement. Therefore, in order to control the dust emission, the following countermeasures should be taken:

(1)减少接触剥离发尘的动作形态;

(1) reduction of the action form of contact with the release of dust;

(2)采用磨耗发尘小的材质;

(2) the material used in the wearing of a small abrasion;

(3)采用发尘小的润滑油;

(3) the use of small lubricating oil;

现实中人和物品的频繁出入及机台的掣动(动态),无尘车间要想达到动态洁净级别,因此“不储备”技术快速地在过滤器中应用以除去已发生的微粒子变得非常重要。通常已发生的微粒子会依据重力及静电吸附力而停留在周边的物体表面。突发性的振动及不稳定的气流会使这些累积微粒在空气中再度扬起,增加了重大微粒子污染的危险性。控制气流可防止微粒子累积,但对于带电表面的微粒累积就无法防止。为了防止由静电吸附而引起的微粒附着,通常在无尘车间内会使用带电程度在数十伏以下的导电性材料。而对于制造品本身的带电,则采用带电程度很少的搬送形态及接触部品材料,并藉由除电装置进行除电。

Reality of people and goods was frequent and machine brake dynamic (dynamic), dust-free workshop to want to achieve dynamic clean level, so "reserve" technology quickly in the filter application to remove particulate matter has become very important. Usually the particles that have been taken will remain in the vicinity of the object surface by gravity and electrostatic forces. The sudden vibration and unstable air flow can cause the accumulation of particles to be raised again in the air, and increase the risk of contamination of the major particles. Control air flow can prevent the accumulation of particles, but can not prevent the accumulation of particles on the charged surface. In order to prevent the particles attached to the electrostatic adsorption, it is usually used in the clean room to use the electrical conductivity of the electric conductivity of the material in the following. And for the manufacture of the product itself, the use of electricity to carry out the form and the contact of the material, and by the electric device.

4、排除/除去

4, exclusion / removal

在无法避免大量微粒子发生的机台中,为了不让洁净厂房设计施工内产生微粒子,因此直接做对外排气的动作,即所谓的局部排气。针对排气的对策

In order to prevent the occurrence of a large number of particles in the machine, in order not to make the clean plant design and construction of particles, so directly do the external exhaust, that is, the so-called local exhaust. Countermeasures against the exhaust

As follows: because the import amounts of gas is necessary, but will be accompanied by a large amount of energy consumption. So can not say that is absolutely ideal strategy. Therefore, as far as possible in the amount of compressed air, not only to the outside of the clean room, but should be used to remove the air and then return to the dust in the dust workshop.