Multi-cone, multi-stage spray nozzle

• Main Authors: QIU, YAN, GOODWIN, JUSTIN PAUL
• Format: Patent
• Language: Chinese; English
• Published: 06.03.2018
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; BLASTING; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACTWITHOUT CHEMICAL INTERACTION; HEATING; LIGHTING; MECHANICAL ENGINEERING; NOZZLES; PERFORMING OPERATIONS; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; STEAM GENERATION; SUPERHEATING OF STEAM; TRANSPORTING; WEAPONS

A multi-cone, multi-stage spray nozzle includes a nozzle body, a valve stem with a first valve head, and a second valve head attached to the first valve head. The first valve stem is biased into a closed position against a valve seat of the nozzle body by a bias device. The second valve head is continuously open. Upon the application of a first fluid pressure, which is less than a threshold fluidpressure, the bias device maintains the valve stem in the closed position while the second valve head is continuously open. And upon the application of a second fluid pressure, which is at least as great as the threshold fluid pressure, the valve stem moves to an open position while the second valve head remains continuously open. 种多锥形、多阶段喷射喷嘴，包括：喷嘴主体、具有第阀头的阀杆、和附接到第阀头的第二阀头。第阀杆由偏置设备偏置到紧靠喷嘴主体的阀座的闭合位置。第二阀头连续地打开。在施加小于阈值流体压力的第流体压力时，偏置设备将阀杆维持在闭合位置，同时第二阀头连续地打开。并且在施加至少与阈值流体压力样大的第二流体压力时，阀杆移动到打开位置，同时第二阀头保持连续地打开。