一种用于沉积光纤预制棒的燃烧器与沉积方法

• Format: Patent
• Language: Chinese
• Published: 23.07.2019
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GLASS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

本发明属于光纤光缆制备技术领域，公开了一种用于沉积光纤预制棒的燃烧器，燃烧器中的原料喷射管的内部至少分为两部分，原料喷射管出口处的内部光滑无螺纹，紧邻此区域向入口处的内部加工有螺纹型凹槽。内部螺纹型凹槽可以使得载气与原料在原料喷射管中沿螺旋线进行旋转前进，使混合气体达到超紊流状态，混合效果更好，使用更少的载气就可以达到充分气化的效果，且内部螺纹型凹槽可以使得液态化的原料在螺旋运动中重新气化；原料喷射管出口处区域的内部表面光滑，可使载气与原料一起沿原料喷射管中心线方向喷出，使气流导向平稳。本发明在保证蒸发效果的前提下，有效减少氮气的用量。生产产品性能与常规方法无异，材料成本下降。 The invention belongs to the technical field of optical fiber and cable preparation, and discloses a burner for depositing an optical fiber preform. The interior of a raw material injection pipe in the burner is divided into at least two parts. The interior of an outlet of the raw material injection pipe is smooth and free of threads. A thread type groove is machined inside an inlet adjacent to the region. The internal thread type groove can enable carrier gas and raw materials to rotate and move forwards along a spiral line in the raw material injection pipe, so that mixed gas reaches the super-turbulent condition, the mixing effect is better, the sufficient gasification effect can be achieved only through less carrier g