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本文介绍一种用毛细通道限制流体流速,从而抑制压力振荡的方法和装置。这种装置是为石油工业用压力表设计的,这些压力表用在测量钻探液和水泥泥浆压力等方面。现用的抑制压力振荡装置都是通过各种设施使流体变成层流来消除压力振荡的。这些装置都有缺点,如毛细管扼流装置不能调节,而且没有清洗孔;长锥形针抑制装置能够抑制振荡的压力范围太窄;锥形螺纹抑制装置结构复
This article describes a method and apparatus for using capillary channels to limit the flow rate of a fluid and thereby suppress pressure oscillations. This device is designed for the oil industry pressure gauges, these gauges used in the measurement of drilling fluid and cement slurry pressure and so on. Current suppression pressure oscillating devices eliminate the pressure oscillations by making the fluid laminar flow through a variety of facilities. These devices have drawbacks such as a capillary choke which can not be adjusted and do not have a cleaning hole; a conical needle suppression device which is capable of suppressing oscillations in a too narrow pressure range;