Clean room equipment stand-alone test run adjustment requirements? -common problem

Clean room equipment stand-alone test run adjustment requirements?

The cold source of the centralized air-conditioning system is supplied by the freezing station, and the closed or open circulation system is adopted. In the joint trial operation of the system, you should be familiar with the functions of the automatic adjustment system regulating valve and other valves; Quantity adjustment or quality adjustment of chilled water for water...

Text label: clean room operation and commissioning, adjustment requirements, clean clean room modular design and installation

Requirements for single-unit test run adjustment of clean clean room modular equipment?

The cold source of the centralized air-conditioning system is supplied by the freezing station, and the closed or open circulation system is adopted. In the joint trial operation of the system, you should be familiar with the functions of the automatic adjustment system regulating valve and other valves; The quantity adjustment or quality adjustment of the chilled water is used to adjust the water quantity to ensure that the water level of the water tank or the water pressure of the collecting pipe is maintained in a normal state under the condition of changing chilled water quantity; In addition to the test adjustment of the automatic adjustment system, the water volume of the evaporator, the cold water tank and the return water tank should be balanced to prevent the overflow of the water tank or the exposure of the evaporator pipe to the water surface after the pump is running, and the water level of the water tank is reduced or even emptied. etc. phenomenon occurs. For the closed-loop chilled water system, the automatic adjustment adopts the variable flow adjustment method. When the water volume fluctuates, in order to ensure the constant pressure difference between the chilled water and the return water header, the automatic adjustment of the chilled water adjustment system should be tested and adjusted.

The debugging items of the constant temperature and humidity air conditioning system should be determined according to the allowable fluctuation range of the constant temperature and humidity of the system; the debugging items of the air cleaning system should be determined according to the requirements of air cleanliness. The overall efficiency of the air-conditioning system is measured. On the basis of each sub-item debugging, continuous measurement is carried out to determine the air parameters processed by the air conditioner and the air parameters of the working area of u200bu200bthe air-conditioned room; the effect of the automatic adjustment system is verified. Long-term assessment to achieve safe and reliable operation of the system. Under the condition that the automatic adjustment system is put into operation, the allowable fluctuation range and stability of the given air parameters that may be maintained in the working area of u200bu200bthe air-conditioned clean room modular are determined; the dust concentration in the air clean room is measured, Identify whether the system meets the parameters given in the design, check whether the design is reasonable, and whether the clean equipment and installation quality meet the requirements; the dust concentration measurement data of the completion acceptance, if there is no process equipment in the clean room or the process equipment has been scrubbed without dust and has not run. The continuous operation time of the air-conditioning system should be determined according to the specific conditions of the air-conditioning system. For a general comfort air-conditioning system, the continuous operation time should not be less than 8H, and the continuous operation time of the constant temperature and humidity air-conditioning system should be based on the constant temperature and The allowable fluctuation range of humidity depends on: ±1°C, 8-12H; ±0.5°C, 12-24H; ±(0.2-0.1)°C, 24-36H. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean rooms and clean rooms.

The test adjustment of the automatic adjustment system includes: wiring inspection after installation, performance inspection of the automatic adjustment device, system linkage operation test, and performance test and adjustment of the adjustment system; the performance inspection of the automatic adjustment device includes: the performance test of the sensitive element , Scale calibration and action test and adjustment of adjustment instruments and detection instruments, and adjustment performance, full travel distance and full travel time of regulating valves and other actuators. System linkage test, before it is officially put into linkage, a simulation test should be carried out to verify whether the action of the system meets the design requirements, and the automatic adjustment operation can be put into operation if there is a mistake; after the automatic air conditioning system is put into operation, the factors affecting the adjustment quality of the system should be identified. , analyze the normal operation effect of the system, and judge whether the expected effect can be achieved.

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