Validation of Air Conditioning Systems in Cleanroom Plants
Validation of Air Conditioning Systems in Cleanroom Plants
After the installation and commissioning of the clean room air conditioning system, it is necessary to carry out the confirmation and verification of the air conditioning system, confirm the selection and installation of the air conditioning system, whether it meets the design and process requirements, confirm the operating performance of the equipment, and confirm the temperature after the system is running , humidity, dust particles...
Text label: clean room air conditioning system, purification plant confirmation verification
Confirmation and Verification of Air Conditioning Systems in Cleanroom Plants
After the installation and commissioning of the clean clean room modular air conditioning system, it is necessary to carry out the confirmation and verification of the air conditioning system, confirm the selection and installation of the air conditioning system, whether it meets the design and process requirements, confirm the operating performance of the equipment, and confirm the temperature after the system is running , humidity, number of dust particles, and number of settled colonies meet the requirements. Investigate from the equipment manufacturer, price, performance and design parameters, etc., to check whether it meets the requirements of design, maintenance and other aspects, whether it can meet the design requirements, and whether the price is reasonable; check and confirm that the installation of the refrigeration unit meets the design requirements. ; Check whether the documents such as the certificate and manual are complete, whether the accessories are consistent with the packing list and the contract, whether the appearance of the equipment is in good condition, and there is no defect; confirm the installation of the air conditioner and air duct equipment, whether the electrical installation meets the equipment requirements, and whether the installation location Meet the equipment and design requirements, whether auxiliary equipment is connected in place; confirm the pipeline installation, check the material, thermal insulation material, installation tightness of the air duct, etc., and confirm that the installation process meets the requirements of the specification.
Installation requirements of clean clean room modular air-conditioning system: the splicing of galvanized steel plate shall be single bite or corner bite, and the four corners of flange and rivet flanging shall be sealed with epoxy resin sealant; Reduce longitudinal splicing; galvanized rivets are used for riveted flanges, reinforcement frames and components; no longitudinal joints shall be allowed for the bottom width of rectangular air ducts within 900mm, and joints should be minimized if they are above 900mm; flange rivet holes and bolt holes are not spaced apart. More than 100mm; the sealing gasket of flange gasket, cleaning port and inspection port is made of closed-cell sponge rubber sheet, with a thickness of 4-6mm; hollow rivets should not be used, joints should be minimized, and the joints should be trapezoidal or tongue-shaped, and coated with The sealant is strictly prohibited from using thick cardboard; the air duct support bracket should be set outside the insulation layer, and a gasket should be installed between the support and hanging bracket and the air duct, and the support and hanging bracket should be set at the regulating valve and other parts to avoid Flange side fixed hole, regulating valve, butterfly valve and other regulating accessories must be installed, and the operating handle is installed in a position that is easy to operate. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean rooms and purification plants.
The air-conditioning duct unit, air-conditioning blower unit and air-conditioning unit of the purification workshop should be started and operated one by one, and the operation of the single unit should be checked. The operation of the single unit should be normal and meet the design requirements; ≥10Pa pressure between and outdoor; the maximum allowable number of dust/cubic meter in the purification area ≤3500000 (≥0.5μm), ≤20000 (≥5μm), sedimentation bacteria ≤10cfu/dish, temperature 18-28℃, humidity 45%- 65%; if the purification air-conditioning system fails the test, it should be re-adjusted to ensure that the cleanliness meets the requirements. After the air volume is adjusted, all air valves should be kept fixed, and scale marks should be painted on the adjustment handle to determine whether the indoor temperature and humidity after adjustment are adjusted. Reach the design specified value; put each automatic control system into operation one by one, adjust the set value according to the design requirements, and check the accuracy and reliability of its actions one by one. less than 24h, and conduct a comprehensive inspection of the system, adjust various indicators, and all meet the design requirements.
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