多功能井口采油防喷装置是为解决普通防喷盒存在的调偏范围小、易磨损泄漏 ,需人工定期紧固盘根压盖、承压低等问题而研制的一种新型专利产品。新产品的调偏部分是由偏心卡箍和偏心短节通过锁紧螺母连接 ,可实现 0～ 2 2 mm范围内的全方位调偏 ;高压两级密封 ,第 2级密封由密封 Multifunctional wellhead blowout preventer is a new patented product developed to solve the problems of ordinary blowout preventer such as small deflection range, easy wear and tear, manual and regular tightening of packing gland and low bearing pressure. The new product is partially offset by the eccentric clamp and eccentric short section by the lock nut connection, can be 0 ~ 2 2 mm range of all-offset; high-pressure two seals, the second seal from the seal