Flow-adjustable multi-stage throttling orifice device

Abstract

The flow-adjustable multi-stage throttling orifice device comprises an outer shell, a multi-stage throttling orifice mechanism and a flow adjusting mechanism, the multi-stage throttling orifice mechanism comprises a plurality of throttling orifice plates and a throttling orifice plate stopping and fixing assembly, the throttling orifice plates are arranged in an inner cavity of the outer shell at intervals, throttling holes are formed in the throttling orifice plates, and the flow adjusting mechanism is arranged in the outer shell. The throttling orifice plate backstop fixing assembly comprises a fixing ring and a plurality of backstop rings, the fixing ring is arranged close to the inlet end of the outer shell, and the plurality of backstop rings are arranged in gaps between the fixing ring and the first-stage throttling orifice plate and between every two adjacent throttling orifice plates; the flow adjusting mechanism comprises a flow adjusting driving assembly and a flow adjusting rotating piece, the flow adjusting driving assembly comprises a driving piece and a transmission piece, the driving piece is arranged on the outer shell, the transmission piece penetrates through the connecting hole to stretch into the outer shell, and the flow adjusting rotating piece is arranged on the end face of one side of the first-stage throttling orifice plate and matched with the transmission piece. The integrated throttling device is small in size, low in working noise and easy and convenient to operate, and the flow can be rapidly and accurately adjusted.

Description

technical field [0001] The invention belongs to the technical field of the fluid transmission field, and in particular relates to a flow-adjustable multi-stage throttling orifice device. Background technique [0002] In the field of industrial automation fluid transmission, the throttle orifice is one of the typical and commonly used fluid control devices, which can realize the functions of reducing pressure and limiting flow. Multi-stage throttling orifice is a specific structural form of throttling orifice, which is often used in high pressure differential environment. [0003] In the environment of high pressure difference, when the fluid flows through the orifice plate, the flow rate of the fluid through the orifice will increase, which will easily cause cavitation, noise and vibration, etc., which will affect the health of the staff and reduce the performance of the components; in addition , the commonly used throttling orifice plate has a fixed throttling area, and it...

AI Technical Summary

Problems solved by technology

[0003] In the environment of high pressure difference, when the fluid flows through the orifice plate, the flow rate of the fluid through the orifice will increase, which will easily cause cavitation, noise and vibration, etc., which will affect the health of the staff and reduce the performance of the components; in addition , the commonly used throttling orifice plate has a fixed throttling area, and its flow regulation ability is limited, so it is difficult to meet the flow regulation requirements of the fluid transmission system.

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