The NTNP Gas-liquid Dyeing Machine is not exactly the same as the airflow atomization dyeing machine when it is operated. The air circulation efficiency of the normal temperature and atmospheric pressure dyeing machine depends mainly on the circulation fan and the transmission line resistance loss, so that it can be To reduce the loss of airflow resistance to a certain extent, the use of high-efficiency circulating fans is the main means to improve the efficiency of airflow circulation. Relative to the fan of the dyeing machine, the relationship between the air volume and the wind pressure and the selection requirements are closely related to the action mode of the airflow nozzle. In addition, the difference in the installation form of the fan and the air duct determines the airflow circulation efficiency of the gas-liquid dyeing machine, such as a fan. The aerodynamic force of the blade, the static pressure energy conversion of the duct section, and the like.
The normal temperature and atmospheric pressure jet dyeing machine circulates in a closed pressure vessel under the process condition of 100 ° C. At this time, the air is entrained with water vapor, which is actually a mixture of steam and air. The density is larger than that of pure air, and it increases as the temperature increases. Therefore, the working load of the fan increases with the increase of the temperature, that is, the operating current of the fan motor increases and the power increases. Under this condition, the viscosity of the air is increased, the viscous force of the traction fabric is increased, and the relative sliding speed with the fabric is reduced, so that the circulation speed of the fabric is increased.
There are two phenomena in the process conditions of the normal temperature and atmospheric pressure jet dyeing machine.
1. It is the power of the fan that increases power consumption.
2. The fabric circulation speed is increased, which increases the fabric tension between the cloth roll and the air flow nozzle.
In theory, the cycle time of the fabric is shortened, but in reality the fabric is stretched long, and the cycle time of some fabrics may not change much. Although these two phenomena have no effect on the levelness of the fabric, they have a great influence on the power consumption of the fan, the width of the fabric, and the longitudinal crease.
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