High-Efficiency Propylene Compressors from China Suppliers - Advanced Technology from Our Factory

The unique structure of the diaphragm compressor completely isolates the gas within an independent compression chamber via the diaphragm, ensuring zero contact with hydraulic oil and the lubrication system. This guarantees that the compressed propylene has extremely high purity without any oil contamination. This is crucial for propylene used as a polymerization feedstock or for high-purity chemical applications, directly safeguarding the quality and performance of downstream products.

Utilizing the static seal principle, the diaphragm compressor achieves zero leakage from the compression chamber. As a flammable gas, any leakage of propylene poses a serious safety hazard. This characteristic of the diaphragm compressor significantly enhances the safety of the entire compression system, making it particularly suitable for plant areas, laboratories, or special gas filling scenarios with extremely stringent leakage control requirements.

Given the relatively high critical temperature of propylene (92.3°C), accurate thermodynamic calculations must be performed during the design phase to ensure that the discharge temperature at each stage of compressor operation always remains above the dew point temperature of propylene at that stage's pressure, with a sufficient safety margin. A highly sensitive discharge temperature monitoring and alarm system must be installed. This is the core measure to prevent internal cylinder liquefaction that could lead to "liquid slugging" and damage the diaphragm.

The heat generated during the propylene compression process must be efficiently removed. The cooling channel design of the diaphragm head must be optimized to ensure uniform and adequate cooling, control the working temperature of the diaphragm, and extend its fatigue life. High-performance alloys such as Inconel 718 are recommended as diaphragm material to withstand alternating stresses and provide good corrosion resistance. Wetted parts should preferentially be made of 316L stainless steel.

A three-layer diaphragm rupture alarm device must be configured to provide timely warning in case the inner layer diaphragm fails, preventing gas and oil from mixing or external leakage. The system should integrate multi-parameter safety interlock shutdown functions, including low suction pressure, low lubricating oil pressure, and cooling water failure. Given the flammability of propylene, it is additionally recommended to configure combustible gas concentration detection probes and an emergency ventilation interlock to establish a multi-layered safety protection system.