Clean and clean shed / clean clean shed / 100 clean shed / thousand clean shed / 10,000 clean shed 1. What is clean shed
Clean shed, also known as dust-free clean shed / purification clean shed / 100-level clean shed / thousand-level clean shed / 10,000-level clean shed, surrounded by a transparent plastic cloth with anti-static in the turbulent clean room space Space, using independent HEPA or ULPA and air-conditioning blower group to become a higher-level clean space, the grade is 100~10000, the internal space height is about 2.0 meters, the coverage area is less than 50m2, and the four pillars can be installed. The wheel can be used for elasticity and can be used in conjunction with the air shower.
2. Clean shed material: plastic valve http://
There are three types of frames for clean sheds: stainless steel "target=_blank> stainless steel square pass, iron square pass, aluminum profile.
There are three kinds of materials for the top of the clean shed: stainless steel "target=_blank> stainless Steel Plate, cold-rolled steel plate spray, anti-static mesh curtain, (anti-static) acrylic sheet.
Clean air supply part, generally choose FFU laminar flow hood (FFU laminar flow air supply unit) http:// Lightweight conveyor belt clean shed enclosure materials generally include: anti-static curtain, (anti-static) acrylic sheet.
3. Selection of clean shed purification level:
More customers will choose a thousand-level clean shed, or a 10,000-level clean shed, a small number of customers will choose 100 or 10,000. In short, the choice of clean shed level depends on the customer's need for cleanliness, but because the clean shed is relatively closed, if the clean shed level is relatively low, it will often bring some side effects: insufficient cooling, employees will be in the clean shed It feels stuffy, so you need to pay attention to this in the actual communication process with the customer.
4. Comparison of the cost of clean sheds and clean rooms:
Generally speaking, most customers will build a clean shed in a clean room, but some customers do not want to build a clean room alone. In the case where the clean shed does not consider air conditioning systems, air showers, transfer windows and other purification equipment, The cost of a clean shed is about 40% to 60% of the cost of a clean room, depending on the customer's choice of clean shed materials and the size of the clean shed. The larger the area that needs to be cleaned, the smaller the difference between the cost of the clean shed and the clean room.
5. Advantages of a clean shed:
A. Construction speed is fast and easy to install
B. Low cost and easy maintenance
C. Easy to control, each FFU has its own fan;
6. Disadvantages of the clean shed:
A. Because the FFU fan filter unit is used in a large amount, the noise of the clean booth may be relatively large;
B. FFU has its own fan, many fans, and high maintenance frequency;
C. Due to space supply, the shed will often feel stuffy; http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
I-beam, also called steel beam, is a long strip of steel with section shape. I-steel is divided into ordinary I-beam and light I-beam. Section Steel with section shape is I-shaped. I-shaped steel, whether ordinary or light, has relatively high and narrow section size, so the inertia moments of the two principal axles of the cross-section are quite different, so it can only be directly used to bend the members in the plane of their webs or to form lattice members. It is not suitable to use axial compression members or bending members perpendicular to the web plane, which limits their application scope. I-beam is widely used in building or other metal structures.
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