The important position of polypropylene staple fiber in cryogenic refrigeration equipment

With the increasing demand for low-temperature environments in various fields such as biotechnology, medical care, and energy, small-scale cryogenic refrigeration devices have been rapidly developed. At the same time, the requirements for refrigeration temperature, efficiency, stability, size, weight and service life of the refrigerator used in space are getting higher and higher. The development of high-efficiency, compact and light-weight cryogenic refrigeration equipment has become a research hotspot of space low temperature technology.

polypropylene staple fiber plays an important role in cryogenic refrigeration equipment, which determines its performance.

polypropylene staple fiber is used as a filling medium in the regenerator, and its material, structure and thermal properties have become the key factors determining the performance of the regenerator. The axial pressure drop of the regenerator with different packing structures was tested. The filling medium mainly consisted of laminated stainless steel wire mesh, sintered wire mesh, roofing key sheets, etc., in order to meet the needs of low temperature. The porous medium filler in the regenerator must have a large heat transfer area, small axial heat conduction, and small pressure drop. Therefore, the porous medium filler should use polypropylene staple fiber as the main filler. We also have different structural properties of the polypropylene staple fiber. The degree of analysis, but also optimistic about the development of polypropylene staple fiber in other areas.

Hai'an County Qinfeng Chemical Fiber Co., Ltd. relies on first-class professional technical strength, front-end quality inspection system and perfect quality inspection system to rank among the high-quality enterprise queues in the industry, specializing in the production of polypropylene staple fiber. The "Qinfeng" brand polypropylene staple fiber has superior moisture permeability. And quick drying, good combing and spinning performance, with fast melting, good filling and sound insulation.

"Qinfeng" brand polypropylene staple fiber sincerely look forward to your call us!