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How to ensure that the clean room testing standards? Clean room construction manufacturers for you to analyze

Industrial modular Clean Room time:2022/05/31 18:00:54 click:254

How to ensure that the clean room testing standards? Clean room construction manufacturers for you to analyze

How to ensure that the clean room testing standards? According to the relevant national regulations, the performance and rationality of clean rooms need to be evaluated and analyzed comprehensively after design, construction and delivery. By entrusting professional testing institutions to carry out systematic evaluation of its safety, suitability and risk needs, judge whether the technology used is reliable, whether the functions meet the requirements, and whether the relevant equipment can operate normally and so on.

How to ensure that the clean room testing standards? Clean room construction manufacturers for you to analyze    How to ensure that the clean room testing standards? According to the relevant national regulations, the performance and rationality of clean rooms need to be evaluated and analyzed comprehensively after design, construction and delivery. By entrusting professional testing institutions to carry out systematic evaluation of its safety, suitability and risk needs, judge whether the technology used is reliable, whether the functions meet the requirements, and whether the relevant equipment can operate normally and so on.    The temperature is too high    In the clean room temperature detection project, when the temperature value is too high, the cooling capacity may be insufficient, including the insufficient output of the refrigerator and the system cannot add the cooling capacity. It may also be that the air volume of the air conditioner is not enough, the air conditioner water supply temperature is too high, and the heat exchange area of the table cooler is too small. In addition, if the temperature rise of the air conditioner fan is too high, the detected temperature may be too high    Temperature accuracy can not meet the requirements    The reason why the temperature accuracy detection of clean room cannot meet the requirements is mainly as follows:    1, the air supply temperature difference is large, the air supply volume needs to be increased;    2, the air supply is not uniform, which may mainly be the design defect of the air supply pipeline, resulting in uneven resistance, or improper layout of the air inlet, or unreasonable layout of the return air outlet;    3. The probe precision of the measuring instrument at the end heater and the indoor sampling point cannot meet the requirements. The probe precision of the general measuring instrument is 1/5 of the temperature precision value to be detected;    4. The reaction speed of the actuator is too slow and the end heater is not suitable.    The relative humidity in summer is too high    When the relative humidity in the clean room is detected, especially in summer, it may be because the chilled water supply temperature of the table cooler air conditioner is too high. It cannot meet the thermodynamic requirement that the return water temperature of the chilled water of air conditioning is lower than the dew point of the machine for air treatment, which is above 0.7°C. Or the heat exchange effect of the surface cooler is poor, resulting in scaling, structural defects, insufficient heat exchange area, and the design defect may be the design of the two level surface cooling system into the first level surface cooling system. In addition, it may also be caused by improper choice of dehumidification method, when the relative humidity < At 40%, freezing dehumidification can no longer meet the requirements, and chemical dehumidification is needed.    Low humidity in winter    The low relative humidity detected in the clean room in winter may be caused by the wrong selection of humidifier, which may be mainly because the thermodynamic working condition is isothermal humidification type is selected into isothermal enthalpy humidification type. When using water humidification (constant enthalpy humidification) method, the air must be heated to more than 30C before humidification to complete the purpose of humidification. Or the humidifier fails, which may be caused by scaling or electrical faults.

The temperature is too high

In the clean room temperature detection project, when the temperature value is too high, the cooling capacity may be insufficient, including the insufficient output of the refrigerator and the system cannot add the cooling capacity. It may also be that the air volume of the air conditioner is not enough, the air conditioner water supply temperature is too high, and the heat exchange area of the table cooler is too small. In addition, if the temperature rise of the air conditioner fan is too high, the detected temperature may be too high

Temperature accuracy can not meet the requirements

The reason why the temperature accuracy detection of clean room cannot meet the requirements is mainly as follows:

1, the air supply temperature difference is large, the air supply volume needs to be increased;

2, the air supply is not uniform, which may mainly be the design defect of the air supply pipeline, resulting in uneven resistance, or improper layout of the air inlet, or unreasonable layout of the return air outlet;

3. The probe precision of the measuring instrument at the end heater and the indoor sampling point cannot meet the requirements. The probe precision of the general measuring instrument is 1/5 of the temperature precision value to be detected;

4. The reaction speed of the actuator is too slow and the end heater is not suitable.

The relative humidity in summer is too high

When the relative humidity in the clean room is detected, especially in summer, it may be because the chilled water supply temperature of the table cooler air conditioner is too high. It cannot meet the thermodynamic requirement that the return water temperature of the chilled water of air conditioning is lower than the dew point of the machine for air treatment, which is above 0.7°C. Or the heat exchange effect of the surface cooler is poor, resulting in scaling, structural defects, insufficient heat exchange area, and the design defect may be the design of the two level surface cooling system into the first level surface cooling system. In addition, it may also be caused by improper choice of dehumidification method, when the relative humidity < At 40%, freezing dehumidification can no longer meet the requirements, and chemical dehumidification is needed.

Low humidity in winter

The low relative humidity detected in the clean room in winter may be caused by the wrong selection of humidifier, which may be mainly because the thermodynamic working condition is isothermal humidification type is selected into isothermal enthalpy humidification type. When using water humidification (constant enthalpy humidification) method, the air must be heated to more than 30C before humidification to complete the purpose of humidification. Or the humidifier fails, which may be caused by scaling or electrical faults.