潔凈廠房設計施工的風量平衡影響因素及措施介
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- 發(fā)布日期：2017-04-13 17:48:55
1.風量平衡的影響因素
1 influencing factors of air volume balance
潔凈廠房設計施工的風量平衡是潔凈室維持正壓值和潔凈度的保證。無塵車間出現風量不平衡的主要因數有：
The air flow balance in the design and construction of the clean room is the guarantee of maintaining the positive pressure value and cleanliness of the clean room. The main factor of the air flow in the dust free workshop is:
（1）初、中、高效過濾器隨著使用時間的增加。阻力也會增加，造成送風量減少，室內正壓值發(fā)生變化。
(1) at the beginning, middle and high efficiency filters increase with time. Resistance will also increase, resulting in reduced air supply, indoor positive pressure value changes.
（2）生產工藝發(fā)生變化，排風量增加或減少造成無塵車間室內正壓值的減少或增加。
(2) changes in production processes, increase or decrease in the amount of exhaust air or decrease or increase the positive pressure value of the dust free workshop.
（3）隨著無塵車間投入使用時間的增加，圍護結構和門窗出現漏風現象，造成無塵車間內正壓值發(fā)生變化。
(3) with the dust-free workshop put into use time increased, the envelope and the doors and windows appear leakage phenomenon, cause dust-free workshop in positive pressure value changes.
（4）管理不善，人員和設備的出入口、門或氣閘室關閉不嚴，造成無塵車間內正壓發(fā)生變化。
(4) mismanagement, personnel and equipment import and export, door, or airlock closes lax, resulting in dust-free workshop in positive pressure change.
（5）送風機皮帶松動或轉速降低造成送風量不足。
(5) the belt is loose or the speed of the fan is reduced and the air supply is reduced.
（6）個別FFU的風機或電機發(fā)生故障，停止運行造成循環(huán)風量不足。
(6) the FFU of the wind turbine or motor failure, to stop the operation of the circulation caused by insufficient.
2.解決風量不平衡的措施
2 to solve the air flow imbalance measures
（1）潔凈廠房設計施工 http://www.jnjkjh.com/ 選用過濾器風量時選用過濾器額定風量的75%~80%，隨著過濾器阻力的增加，逐步加大送風閥門的開度，直到過濾器達到終阻力時更換過濾器。
(1) clean plant design and construction of the selection of the filter air filter rated air 75%~80%, with the increase in the filter resistance, and gradually increase the opening of the wind valve, until the filter to reach the final resistance when the replacement filter.
（2）空調箱的送風機或FFU的送風機采用變頻電機，初運行時將送風機或FFU的電機運行頻率調低，隨著運行時間的增加，過濾器阻力也增加時逐步調高電機頻率以保證達到設計送風量。
(2) the air conditioner or FFU of the air conditioner adopts frequency conversion motor, and the motor operating frequency of the blower or FFU is reduced, with the increase of running time, the frequency of the filter increases with the increase of the frequency of the motor.
（3）當工藝排風量發(fā)生變化時，調整系統的新風量，這就必須把新風系統設計成變風量系統以求得排風和新風達到平衡，否則當工藝發(fā)生變化時排風量不能增加或減少。
(3) when the process is changed, the fresh air volume of the system should be designed as a variable air volume system to achieve the balance between the wind and the wind.
（4）加強潔凈空調系統的運行管理，提高管理人員的素質。制定嚴密的管理制度。
(4) strengthen the operation management of the clean air conditioning system, improve the quality of the management personnel. Formulate strict management system.
（5）潔凈廠房設計施工應配備壓差表測試儀器，當正壓值發(fā)生變化時及時報警，采取相應措施保證無塵車間的正壓值。
(5) the design and construction of clean plant should be equipped with a pressure difference meter test instrument, when the positive pressure value changes, the timely warning, to take corresponding measures to ensure that the normal pressure value of the workshop.
