What should be paid attention to when assembling and disassembling mechanical seals for high temperature and high pressure dyeing machines?
Dec 14, 2022
1. When disassembling and assembling, care should be taken to avoid bumping and scratching the sealing surfaces of the dynamic, static rings and auxiliary sealing rings, and it is not allowed to use hand hammers and iron rods to strike.
2. If there are dirt deposits that cannot be disassembled, it should be cleaned first and then disassembled to avoid damage to the sealing element.
3. During the assembly process, the cleanliness requirements of the sealing cavity and the surface of the shaft sleeve must be maintained. If there is dust attached, use gasoline to clean it, and use clean soft gauze, tissue paper, absorbent cotton, etc. to scrub the dynamic and static ring sealing surfaces. Turbine oil or spindle oil can be applied to the sealing surface during assembly.
4. The spring compression of the mechanical seal must be properly adjusted, which is mainly guaranteed by assembly experience. When adjusting the spring compression, the fixing screws must be tightened and not loosened.
5. If the external sealing liquid is used, the pressure of the sealing liquid must be 0.5kg/cm2 higher than the pressure of the sealed medium. There is no strict requirement on the flow rate, only a loop is required to take away the excess heat in the sealed cavity as a limit.
High temperature and high pressure dyeing machine is suitable for dyeing natural fibers: loose fibers such as cotton, hemp, silk, wool, etc., and can also be used for bleaching. A special balanced mixed-flow pump is used for active replacement, which penetrates into all parts of the fiber to achieve uniform dyeing.
The high temperature and high pressure dyeing machine is fully active, and fully active program control is carried out according to technical requirements. The main functions of the dyeing machine are as follows:
High-efficiency and high-corrosion-resistant main pump system: The high-temperature and high-pressure dyeing machine adopts a stainless steel mixed-flow pump and is equipped with a frequency converter, which can control the dyeing process steplessly. The main pump series has the characteristics of sufficient flow, strong penetration, stepless conditioning, etc., to ensure excellent dyeing quality.
Fully automatic heating and cooling system: The stainless steel Y-valve can continuously control the heating and cooling according to the heating and cooling rate given by the technology, so that the heating and cooling are more scientific and reasonable, and the yarn dyeing effect is more complete.