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万级、十万级无尘净化车间设计&造价差别
2025/2/26
Whether it is due to the improvement of product quality and the renovation of existing plants, or due to market demand for new and expanded plants, industrial manufacturers will face the project preparation of the future of the major problem. From infrastructure to supporting decoration, from technology to equipment procurement, a series of complicated project processes, in this process, the preparation party should be most concerned about the quality of the project and comprehensive cost.
The following will briefly describe the major factors that affect the cost of dust-free purification workshop during the preparation of industrial plants:
Spatial factor
The space factor is composed of two aspects: workshop area and workshop height, which directly affects the cost of interior decoration envelope: color steel partition wall and ceiling area; The input cost of air conditioning: the area volume of the required air conditioning load, the air return mode of air conditioning, the pipeline direction of air conditioning and the number of air conditioning ends.
In order to avoid increasing project investment due to space reasons, the preparation company can consider from two aspects: the difference of production process equipment working space (including movement, maintenance and overhaul height or wide margin); The trend of work flow and logistics in space. The current building pursues the principle of land saving, material saving and energy saving, so the purification workshop is not the higher the better, and the actual consideration of its own production process equipment and technology in the preparation process can effectively avoid unnecessary investment costs.
Temperature, humidity and cleanliness factors
Temperature, humidity and cleanliness are tailor-made workshop environmental standard data for industrial products, is the highest design basis for purification workshops, and is an important guarantee for product qualification rate and stability.
The current standards are divided into national standards, local standards, industry standards, and enterprise internal standards. Such as cleanliness grade classification standards, GMP standards in the pharmaceutical industry are national standards, for most manufacturing industries, mainly based on their own product characteristics to determine the standards of each production process purification workshop. For example, the PCB industry exposure, dry film, solder resistance area temperature and humidity in 22±1℃, 55±5%, cleanliness in thousands to 100,000 degrees; The lithium battery industry pays more attention to low humidity control, the relative humidity is generally below 20%, and some quite strict liquid injection workshops need to be controlled at about 1% relative humidity.
Defining environmental data standards for the purification plant is the most important central point affecting project investment. The development of cleanliness level affects the cost of decoration: set at the 100,000 level and above, requiring the necessary clean plate envelope, purifying doors and Windows, personnel and goods air shower transmission facilities, and even expensive high-priced floors; At the same time, it also affects the cost of air conditioning: the higher the cleanliness, the greater the number of air conditioning changes necessary to meet the purification, the greater the air volume required to purify the air cabinet, and the amount of wind pipes and high efficiency tuyere at the end also increases. In the same way, the formulation of temperature and humidity in the workshop not only has the above cost problems, but also the factors that control the accuracy, the higher the accuracy, the more complete the supporting equipment required. If the relative humidity range is accurate to ±3%, ±5%, the humidification equipment and dehumidification equipment required to be designed should be complete.
Workshop temperature and humidity, cleanliness and other indicators not only have an impact on the early investment, for a base of long-term, late operating costs are extremely high, therefore, for their own production of product characteristics, comprehensive national standards, standards and internal standards, reasonable establishment of environmental data standards to meet their needs, is the most basic and basic link in the preparation of purification plant.
Other factors
In addition to the two major requirements of space and environment, some factors affecting the standard of the purification workshop are often ignored by the designer or the constructor, resulting in excessive temperature and humidity. For example, the external climate is not considered comprehensively, the exhaust volume of the equipment is not considered, the heat output of the equipment is not considered, the dust production of the equipment is not considered, and the humidity production of a large number of people working at the same time is not considered.
To sum up, how much is the difference between class 10,000 and Class 100,000? Before asking this question, the most reasonable approach is to first clarify the parameters of the production equipment of the purification workshop (length, width and height, exhaust volume, heat output, dust production), formulate the requirements of the workshop area, height, temperature and humidity and cleanliness to meet their own needs, and then submit to the designer to design a reasonable comprehensive purification program. As the preparation party not only fully understand their own needs, but also through the whole project design, procurement, construction, acceptance, trial production quality, cost and schedule control, so it is just right.
