Pressure Difference Control in Clean Rooms: The Key to Ensuring a Clean Environment

In the operation and management of clean rooms, pressure - difference control is a crucial aspect. Guangzhou Cleanroom Construction Co., Ltd., as a professional manufacturer of purification equipment, has a profound understanding of the key points and significance of pressure - difference control in clean rooms.

Clean rooms are usually divided into different areas according to different production processes and cleanliness requirements. By setting appropriate pressure differences, making the pressure in areas with higher cleanliness levels higher than that in areas with lower cleanliness levels, it can effectively prevent pollutants such as dust and microorganisms from spreading from low - cleanliness areas to high - cleanliness areas, ensuring that the environment in high - cleanliness areas always meets production requirements. For example, in the pharmaceutical industry, this can prevent drugs from being contaminated and ensure the quality and safety of drugs.

Stable pressure differences help maintain a good airflow organization in clean rooms. Appropriate pressure differences can guide the air to flow along the predetermined path, forming a reasonable air - flow cycle, avoiding the occurrence of air - flow dead corners, and enabling the air in the workshop to be updated in a timely manner, thus ensuring the uniformity of the cleanliness of the entire workshop.

We usually control the pressure difference by adjusting the air volume of the air - supply fan and the air - return fan. Increasing the air - supply volume or reducing the air - return volume can increase the pressure in the workshop; conversely, it can reduce the pressure. Through accurate calculation and adjustment of the air - supply and return ratio, precise control of the pressure difference in different areas can be achieved. For example, in an electronic chip manufacturing workshop, we will finely adjust the air - supply and return system according to the strict cleanliness requirements of the production process to ensure that the pressure difference is always stable within an appropriate range.

Installing professional pressure - difference sensors and controllers is an important means to achieve precise pressure - difference control. The pressure - difference sensor can real - time monitor the pressure differences between different areas in the workshop and transmit the data to the controller. The controller automatically adjusts the opening degree of the air - supply and return valves according to the preset pressure - difference range, thus realizing the automatic control of the pressure difference. This automated control method not only improves the control accuracy but also greatly reduces the workload of manual operation.

During the design and construction of clean rooms, the reasonable setting of the airtightness of doors and windows and the layout of air locks also play an important role in pressure - difference control. Well - sealed doors and windows can reduce air leakage and help maintain the stability of the pressure difference. As a transition space between different areas, the air lock can effectively prevent the entry of pollutants by setting an appropriate pressure gradient, further protecting the environment of the clean room.

Possible causes include failures in the air - supply and return system, equipment aging, filter blockage, etc. The solutions are to regularly maintain and inspect the air - supply and return system, replace aging equipment and blocked filters in a timely manner, and ensure the normal operation of the system. At the same time, optimize the parameter settings of the control system to improve the stability and response speed of the system.

This may be due to poor airtightness of the workshop, with a large amount of air leakage. At this time, a comprehensive inspection of the walls, doors, and windows of the workshop is required, and air - leakage points should be repaired in a timely manner. In addition, it may also be due to improper selection of air - supply and return equipment with insufficient power. In this case, it is necessary to re - evaluate the needs of the workshop and select and replace equipment with appropriate power.

This may be caused by control - system failures or human - operation errors. The solution is to check the operating status of the control system to ensure that the parameter settings are correct. At the same time, strengthen the training of operators to improve their operation skills and sense of responsibility, and avoid inverted pressure differences caused by human factors.

Pressure - difference control in clean rooms is a complex and delicate task, which is directly related to the operation effect of clean rooms and product quality. With a professional technical team, rich project experience, and high - quality products, Guangzhou Cleanroom Construction Co., Ltd. can provide you with a full - range of pressure - difference control solutions for clean rooms. If you have any needs or questions regarding pressure - difference control in clean rooms, please feel free to contact us at any time. We will be happy to serve you.