The performance of the refrigerating machine oil is deteriorated. The refrigerating machine oil is waxy in the low temperature and low pressure condenser. The viscosity of the oil increases, the fluidity deteriorates, and a large amount of oil sticks to the condenser, which makes the system difficult to return oil. The compressor crankcase lacks oil, forcing the system to fail. Normal operation, the freeze-drying process is difficult to continue. In view of the above various unfavorable factors, the lyophilizer produced by a company has increased the various protection measures while ensuring the requirements of the freezing production process, and the lyophilizer has been stably operated in the secondary desorption drying stage, which greatly reduces the refrigeration. The operation of the system is faulty, resulting in a longer compressor life. In the freeze-drying production process, the main process is to dry the solid matter frozen into ice crystals and solute, open a low-temperature liquid pipe valve drawn from the intercooler, and directly pass the expansion valve or capillary to the compressor. The medium pressure system is cooled, and at this time, the refrigerant evaporates in the medium pressure zone, thereby lowering the temperature of the exhaust port and effectively increasing the pressure of the compressor medium pressure, thereby improving the working condition of the compressor. When the freeze dryer is used at zero load and the treatment method is low, the high temperature and high pressure gas from the high pressure is mixed with the liquid sprayed by the LG type vapor-liquid mixer and the expansion valve, and then enters the condenser, thereby correspondingly improving the condenser. Temperature and pressure. Since the time and flow rate of the mixed high-temperature and high-pressure gas can be adjusted and controlled, it has no effect on the secondary drying, but greatly improves the harsh environment of the system, so that the frozen oil in the condenser returns to the compressor in time, reducing the compression. The compression ratio of the machine, and it can not let the evaporation temperature in the condenser is too low. This method is simple and reliable after long-term use, and the system runs stably. Plate And Tube Integrated Cutting Machine 1. Plate and tube processing, one machine for two purposes, saving space
6. The X-axis frame beam is annealed to eliminate internal stress. After rough machining, vibration and aging are carried out before finishing to ensure the rigidity and stability of the moving parts of the cutting head.
8. In the process of movement, the limit switch controls the stroke to limit the limit, and there are elastic buffer pads at both ends to limit the mechanical limit to ensure the safety of the system operation.
9. Machine base: frame structure welded with high-quality pipes, professional welding, secondary aging treatment, and precision machining by large-scale gantry milling machines. These design and processing methods ensure that the machine tool has excellent shock resistance, high rigidity and stability. Plate And Tube Integrated Cutting Machine,Plate And Tube Integrated Laser Cutting Machine,Plate And Pipe Laser Cutting,Sheet And Pipe Fiber Laser Machine GUANGDONG CHITTAK INTELLIGENT EQUIPMENT CO.,LTD , https://www.chittakcutting.com
2. High-load mechanical structure bed, stable processing and high precision
3. Customized laser generator with small slits and less energy consumption
4. Full stroke chuck, tube diameter up to 220mm
5. Short tail material, cost saving
7. The bed is equipped with high-quality linear guides, driven by servo motor, high-quality rack and pinion, so that the Z-axis slide plate can achieve reciprocating motion in the X direction.
10. A dust cover is installed on the guide rail to prevent dust debris from falling into the guide rail to affect the movement, keeping clean and smooth movement.