In the construction of an electronic dust - free workshop, the construction of ceiling FFU (Fan Filter Unit) units is a crucial part. It is like the "guardian angel" of the electronic production environment, directly affecting the air cleanliness, air - flow organization, and overall production quality within the workshop. This article will detail the key points related to the construction of ceiling FFU units in an electronic dust - free workshop.
I. The Important Role of FFU Units in the Electronic Dust - free Workshop
(I) High - efficiency Filtration to Ensure Air Cleanliness
The production of electronic components is extremely sensitive to dust particles in the air. The FFU unit is equipped with a high - efficiency filter inside, which can effectively intercept extremely small - sized dust. For particles with a diameter greater than or equal to 0.3μm, the filtering efficiency can reach more than 99.97%. This ensures that the air entering the production area maintains an extremely high level of cleanliness, thereby preventing dust particles from adhering to electronic components and affecting their performance and reliability.
(II) Precise Control of Air - flow Organization
The rational layout and operation of FFU units on the ceiling can achieve precise control of the air - flow organization within the electronic dust - free workshop. Through uniform air supply and stable air pressure, a unidirectional flow or an air - flow pattern that meets specific requirements is formed, enabling dust particles to be discharged from the workshop along a predetermined direction. This effectively prevents the accumulation and diffusion of contaminants within the workshop, creating a stable air environment for electronic production.
II. Preparatory Work before the Construction of Ceiling FFU Units
(I) Review of Construction Drawings and Site Survey
The construction team must carefully review the construction drawings to ensure a clear understanding of the installation positions, quantities, and layouts of the FFU units, as well as their connection methods with other systems (such as ventilation ducts, electrical wiring, etc.). At the same time, a site survey should be conducted to check whether the structural load - bearing capacity and spatial dimensions of the ceiling match the drawings. Mark any obstacles or special conditions that may affect the construction, such as the positions of columns and beams, reserved holes, etc.
(II) Preparation of Materials and Equipment
According to the construction requirements, prepare high - quality FFU units and related accessories, including high - efficiency filters, fans, motors, controllers, etc. At the same time, prepare the tools required for installation, such as screwdrivers, wrenches, electric drills, etc., as well as materials for connection and sealing, such as sealant, sealing gaskets, etc. Ensure that all materials and equipment meet the cleanliness and performance requirements of the electronic dust - free workshop.
(III) Personnel Training and Safety Measures
Construction personnel need to receive professional training to be familiar with the structure, installation methods, and debugging process of FFU units. Before construction, comprehensive safety measures should be formulated, such as wearing safety helmets, safety ropes, and other protective equipment, and setting up warning signs to ensure the safety of the construction site. Because the construction environment of an electronic dust - free workshop may have potential hazards such as working at heights and electrical use, safety work cannot be ignored.
III. Installation and Construction Process of Ceiling FFU Units
(I) Installation of Ceiling Keel
First, install the keel on the ceiling according to the construction drawings. The installation of the keel should ensure its levelness and verticality. This is the basic framework for the subsequent installation of FFU units, and its quality directly affects the installation flatness and stability of the FFU units. Use tools such as a level to calibrate and ensure that the spacing between the keels meets the installation size requirements of the FFU units.
(II) Lifting and Fixing of FFU Units
Carefully lift the FFU units to the installation positions using special lifting equipment and ropes to ensure a smooth lifting process and avoid damage to the units during collision. After the units are placed on the keel, firmly fix them using bolts and other connecting parts. During the fixing process, pay attention to the installation direction and position accuracy of the units, and ensure that the spacing between adjacent units is uniform to achieve a good air - flow organization effect.
(III) Electrical Connection and Wiring
The FFU units need to be electrically connected, including the connection of power lines, signal lines, etc. The wiring work should follow the electrical specifications of the electronic dust - free workshop, using appropriate wire gauges and wire troughs for protection. Electrical wire joints should be reliably connected and insulated to prevent electrical faults such as leakage and short - circuit. At the same time, the electrical wiring should be reasonably hidden or arranged in positions that do not affect the air - flow and cleanliness.
(IV) Pipeline Connection and Sealing
If the FFU units involve the connection of ventilation ducts, use pipe fittings and sealing materials with good sealing performance to ensure that the pipeline connections are tight and leak - free. During the connection process, pay attention to the direction and slope of the pipeline to avoid water accumulation or air stagnation. Special sealing treatment should be carried out at the connection between the pipeline and the unit to prevent air from leaking through the gaps and affecting the air purification effect.
IV. Debugging and Acceptance after the Construction of Ceiling FFU Units
(I) Unit Debugging
After the installation is completed, debug the FFU units. First, check whether the rotation direction of the fan is correct. Adjust the fan speed through the controller and observe whether parameters such as wind speed and air pressure meet the design requirements. Check whether the high - efficiency filter is tightly installed and whether there is air leakage. At the same time, test the control system of the unit to ensure that it can achieve normal start - stop, wind speed adjustment, and fault alarm functions of the unit.
(II) Overall Acceptance
After the FFU units are debugged normally, conduct the overall acceptance of the electronic dust - free workshop. Test the air cleanliness, air - flow speed, and air - flow direction at different positions within the workshop to ensure that they all meet the requirements of the electronic production process. Check the sealing between the FFU units and the ceiling, walls, and other surrounding structures, as well as the collaborative operation with other systems (such as the air purification system, temperature control system, etc.). Only when all acceptance items are qualified is the construction of the ceiling FFU units in the electronic dust - free workshop successfully completed.
The construction of ceiling FFU units in an electronic dust - free workshop is a project with high technical requirements and numerous construction details. Our Guangzhou Kunling Purification Equipment Co., Ltd., relying on a professional technical team and rich construction experience, provides high - quality FFU unit construction services for electronic dust - free workshops, ensuring clean air in the workshop and a stable production environment, and contributing to the high - quality development of the electronic industry.