It is well known that a large part of high-precision industries cannot do without dust-free purification workshops, such as CCL circuit substrate copper clad laminates, PCB printed circuit boards, photoelectric LCD screens and LEDs, power and 3C lithium batteries, and some medical and food industries. With the development of science and technology, the quality standards of supporting products required by the manufacturing industry have been continuously improved. Therefore, industrial manufacturers not only need to innovate products from the production process, but also need to improve the production environment of the products, strict workshop environment requirements, and improve product quality and stability.

Whether it is to renovate the existing plant due to the improvement of product quality, or to expand the plant due to market demand, industrial manufacturers will face the major problem of project preparation, which is related to the future of the enterprise. A series of cumbersome and complicated project processes from infrastructure to supporting decoration, from process to equipment procurement. In this process, the project planner should be most concerned about the quality and overall cost of the project. The following will briefly describe several major factors that affect the cost of dust-free purification workshops during the preparation of industrial plants:

1. Spatial factors:

Space factors are composed of workshop area and workshop floor height, which directly affect the cost of interior decoration: color steel plate partition wall and ceiling area; air conditioning input cost: the volume of the required air conditioning load, and the air supply and return method of the air conditioning , The direction of the air-conditioning pipeline and the number of air-conditioning terminals.

To avoid the increase in project investment due to space reasons, the builder can comprehensively consider from two aspects: the working space of different production process equipment (including the height or width allowance for movement, maintenance and repair); the spatial direction of the flow of work people and logistics. At present, the building follows the principles of saving land, materials, and energy, so the purification workshop is not as big as possible. When preparing for the construction, it can effectively avoid unnecessary investment costs.

2. Temperature, humidity and cleanliness factors:

Temperature, humidity and cleanliness are all workshop environment standard data tailored for industrial products. They are the highest design basis for purification workshops and an important guarantee for product qualification and stability. The current standards are pided into national standards, local standards, industry standards, and enterprise internal standards. For example, cleanliness grade classification standards, pharmaceutical industry GMP standards, etc. belong to the national standard. For most manufacturing industries, the standards of each production process purification workshop are determined mainly based on their own product characteristics. For example, the temperature and humidity of the exposure, dry film, and solder mask areas in the PCB industry are 22±1℃, 55±5%, and the cleanliness ranges from 1,000 to 100,000; the lithium battery industry pays more attention to low humidity control, which is generally relatively The humidity should be below 20%, and some fairly strict liquid injection workshops need to be controlled at a relative humidity of about 1%.

Defining the environmental data standards of the purification workshop is the most important central point affecting project investment. The establishment of cleanliness level affects the cost of decoration: it is set at a level of 100,000 and above, and the necessary clean sheet enclosures are required to purify doors and windows, personnel and cargo air shower transmission facilities, and even expensive high-priced floors; it also affects the cost of air conditioning : The higher the degree of cleanliness, the greater the number of air-conditioning changes necessary to meet the purification requirements, the greater the air volume required to purify the air cabinet, and the higher the efficient air outlet volume of the air duct and the end. In the same way, the establishment of workshop temperature and humidity not only has the above-mentioned cost problem, but also has the factors of control 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 that need to be designed must be complete.

The establishment of temperature, humidity and cleanliness of the workshop not only affects the initial investment, but also the later operating cost of an evergreen plant. Therefore, according to the characteristics of the products produced by itself, combined with national standards, industrial standards and internal corporate standards, Reasonably formulating environmental data standards that meet their own needs basic and fundamental step in preparing for the construction of a purification plant.

3. Other influencing factors:

In addition to the two major requirements of space and environment, some factors that affect the compliance of the purification workshop are often ignored by the designer or the preparator, 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 generation of the equipment is not considered, the dust production of the equipment is not considered, and the moisture production of a large number of people working at the same time is not considered.

In summary, how much is the difference between 10,000-level and 100,000-level? Before asking this question, reasonable approach is to clarify the parameters of the production equipment in the purification workshop (length, width, height, exhaust volume, heat generation, and dust production), and work out the workshop area, floor height, temperature and humidity that meet your own needs. And cleanliness requirements, and then handed over to the designer to design a set of reasonable comprehensive purification plan. As the organizer, we not only fully understand our own needs, but can also use this principle to control the quality, cost and schedule of the entire project's design, procurement, construction, acceptance, and trial production. This is just right.