In recent years, with the improvement of people's living environment requirements, a large number of new building and decorative materials have entered residential and public buildings, coupled with the closeness of modern buildings, resulting in the increasingly prominent problem of indoor air pollution in buildings, which has seriously endangered human health, thus attracted widespread attention from all walks of life. The determination of airflow velocity under a certain cleanliness in the purification workshop varies with the specific conditions such as the use of the clean room. It is not only affected by indoor dust emission and filter efficiency, but also by other factors. As far as the industrial clean room is concerned, the main factors affecting the cleanliness of the purification workshop and the selection of airflow velocity are as follows:
(1) Indoor pollution sources: building components, number of personnel and operation activities, process equipment, process materials and process itself are dust release sources, which vary greatly according to the specific situation;
(2) Indoor airflow pattern and distribution: Unidirectional flow requires uniform and equal streamline, but local eddy current will be formed by disturbance of process equipment layout and location change and personnel activities; non-unidirectional flow requires mixing to avoid dead angle and temperature stratification;
(3) Control requirements of self-purification time (recovery time): Intermittent convective airflow or movement of people and equipment during accident release or interruption of air flow into pollutants or air flow or normal operation in purification workshop will cause deterioration of cleanliness, and the self-purification time to restore original cleanliness depends on airflow velocity; and self-purification time. Control requirements depend on the tolerance of the impact on the quality and yield of the product within this time frame (deteriorating cleanliness).
1. Sterile operation should be strictly carried out in the purification workshop to prevent microbial contamination. Operators should turn off the ultraviolet lamp before entering the room.
2. There should be sterile operation room and buffer room in the purification workshop. The cleanliness of sterile operation room should reach 10,000 grade. The indoor temperature should be kept at 20-24 C and the humidity should be kept at 45-60%. The cleanliness of the ultra-clean table should reach 100 levels.
3. Cleaning workshops should be kept clean and no sundries should be piled up to prevent pollution. All sterilizing equipment and media should be strictly prevented from being polluted. Those who have been polluted should stop using them.
4. The cleaning workshop should be sterilized and cleaned regularly with suitable disinfectant to ensure that the cleanliness of the sterile room meets the requirements.
Above is the main factor affecting the cleanliness of the purification workshop. Before using the purification workshop, the ultraviolet lamp in the sterile room must be turned on to sterilize for more than 30 minutes, and at the same time the ultra-clean table should be opened for blowing. After operation, the sterile room should be cleaned up in time and sterilized by ultraviolet lamp for 20 minutes. All articles with live bacteria must be disinfected before they can be washed under the tap. Pollution of the sewer is strictly prohibited.
Shandong Aide Purification Engineering Co., Ltd. has strong technical strength and construction experience, according to the different needs of clean places, using professional equipment, to form different levels of clean standard space, to create the most suitable production and working environment. At present, it has established close cooperation with many enterprises and is a trustworthy professional purifying project implementer. Wechat Public Number: Aide-188