Desiccant Wheel Dehumidifier For Semiconductor Workshop

Desiccant Wheel Dehumidifier for Semiconductor Workshop

Main Features of Conloon Desiccant Dehumidifier:

1.Proflute rotor,washable,10 years lifetime;

2.Equipped with an electric PTC regeneration heating;

3.Strong and robust construction with 1.2mm thickness;

4.SCR(silicon controlled rectifier) constant temperature controling system ensures inside temperature constant and promise the reliable and stable performance

5.Front & Back access door design for easier maintenance and troubleshooting;

6.Process air inlet and dry air outlet located at the same side for easier installation;

7.Customized filters,G4 efficiency;

8.Auto stop protection function for Rotor;

9.ABB,OMRON and Schneider electrical accessories;

10.Delay time protection circuit & fault locater system;

11.Humidistat is used,a better way to control humidity.

Working Principle of Desiccant Dehumidifier

Desiccant Wheel Dehumidifier for Semiconductor Workshop

At present, there are four main methods of air dehumidification, such as ventilation dehumidification, cooling dehumidification, liquid moisture dehumidification, and solid adsorbent dehumidification. In the air conditioning dehumidification system, cooling dehumidification and solid adsorbent dehumidification are the main means. Cooling and dehumidification Under the condition that the environment does not require very high humidity (RH＞60~65%), the effect is better, the performance is stable and the energy consumption is relatively low. Currently, it is widely used. However, where the production environment requires high humidity (RH=45±5%), it is obviously uneconomical to use cooling and dehumidification. The desiccant wheel dehumidifier will not be affected by the air dew point, and the dehumidification amount is large, which is especially suitable for low-humidity conditions. However, if all the dehumidification is performed by the rotary dehumidifier using the solid-state adsorption principle, the energy consumption for regeneration is relatively large. This type of program is not the most economical. Because the dehumidification of the runner and the cooling and dehumidification have their own advantages, they will be optimized and combined, each with its own strength and short complementarity, and its performance will be better.

Humidity in the semiconductor industry requires semiconductor production plants to maintain a stable environment within the climatic conditions throughout the year, especially for temperature, humidity, air cleanliness, airflow organization, pressure balance, etc. Strict requirements have been imposed on multiple air conditioning parameters. Different from other constant temperature and humidity environment systems, due to the sensitivity of electronic products to static electricity and the influence of high humidity environment on their quality, they have strict requirements on the accuracy of humidity. For the configuration of air conditioning systems, the system is required. It also has the function of summer dehumidification and winter humidification. Generally, the temperature and humidity conditions in the semiconductor manufacturing industry are: T=22±2°C, RH=45±5%; for this temperature and humidity requirement, it is traditionally used to treat by dehumidification + post-heating (reheat). And achieved certain results. However, there is a fatal problem in this way, the offset between heat and cold and the huge waste of energy consumption, especially due to the new wind in the semiconductor industry, the large exhaust system, the production environment is a large space clean environment, and many plants are currently concentrated. The special situation in South China and East China makes this problem very prominent. Therefore, in the latest air conditioning systems of many semiconductor plants, the use of fresh air through the new fan group (cooling dehumidification) and the rotary dehumidifier combined treatment of humidity, temperature and then through the combination of post-air conditioning unit processing, to achieve indoor air supply temperature and humidity requirements, And made significant gains.

Characteristics of combined dehumidification and air conditioning system for runner and cooling

The combined dehumidification and air conditioning system of the runner and the cooling combines the cooling and dehumidifying circulation system with cold heat exchange with the dehumidification of the rotor, and uses the heat absorption and dehumidification of the refrigeration system to perform predehumidification, and the dehumidifier is used for deep dehumidification. Cooling dehumidification has a good dehumidification effect in a certain range, and the performance is stable. However, when the humidity requirement is low, the ability to cool and dehumidify is obviously reduced. At this time, the combined dehumidification system of the runner and the cooling can achieve good results. Cooling and dehumidification as the pre-dehumidification, highlighting the low energy consumption of the dehumidifier under high dew point conditions, using the dehumidification of the wheel for deep dehumidification, highlighting the low temperature and low humidity conditions of the dehumidifier, not limited by dew point and large dehumidification advantage. The common process of this system is as follows: 1: cooling dehumidification; 2: runner dehumidification; 3: iso-wet cooling; 4: regenerative heating; 5: adiabatic regeneration

In the low-humidity environment, the combined dehumidification and air-conditioning system of the runner and the cooling has the superiority that only the cooling dehumidifier is incomparable.

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Contact us: sales@conloon.com/+86-15397001682

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