A plumbing system including a pump noise dampener is provided. The plumbing system comprises: a pump to output a flow of process liquid; a measurement device to measure a flow rate of the process liquid output from the pump; and a process line coupling the output of the pump to an input of the measurement device. The pump noise dampener is disposed between the pump and the measurement device. The pump noise dampener comprises a bladderless, single chamber pressure vessel to hold the process liquid at a prescribed pressure and an isolation valve tying the pressure vessel into the process line in order to control a flow of the process liquid output from the pump into and out of the pressure vessel and to the measurement device. The pressure vessel is further configured to dampen noise of the process liquid output from the pump and input to the measurement device.

A pressure wave generator with dynamic reflector of pressure impulse is disclosed which comprises an outer fixed and an inner coaxially-rotating cylindrical elements with the given profiled openings of the given shapes and sizes in the solid walls and a dynamic reflector of pressure impulse, configured in the solid wall of the inner rotating cylindrical element having a longitudinal radial-azimuthal variable-concave surface. Such concave surface provides a decomposition of the reflected pressure impulse to a radial and azimuthal component, especially important on the stage of decrease of the pressure amplitude from a maximal value to zero. Variation of the curvature of the radial-azimuthal shape of the concave surface provides a maximal azimuthal component and a minimal radial component of the mechanical reaction of the shaft of the pressure wave generator. The helicoidally-shape of the inner surface of a collector add an azimuthal motion to reflected pressure impulse.

A method can include detecting instability of multiphase fluid flow in a multiphase fluid production system using sensor measurements from the multiphase fluid production system; and, responsive to the detection of instability, increasing gas injection into the multiphase fluid production system until a variation metric of the sensor measurements decreases to a level indicative of stable multiphase fluid flow in the multiphase fluid production system.

A method can include detecting instability of multiphase fluid flow in a multiphase fluid production system using sensor measurements from the multiphase fluid production system; and, responsive to the detection of instability, increasing gas injection into the multiphase fluid production system until a variation metric of the sensor measurements decreases to a level indicative of stable multiphase fluid flow in the multiphase fluid production system.

A device to be installed in a pipeline, characterized by at least one static mixer and at least one pre-mixer arranged in a sleeve, wherein said at least one static mixer is characterized by: a body having a plurality of slots through the body, said slots having one or more sides that are angled with respect to an axis passing through a center of the body; a plurality of arms extending from an outer edge of the body towards a center of the body, wherein the plurality of slots comprising at least one concentric ring of slots.

A device to be installed in a pipeline, characterized by at least one static mixer and at least one pre-mixer arranged in a sleeve, wherein said at least one static mixer is characterized by: a body having a plurality of slots through the body, said slots having one or more sides that are angled with respect to an axis passing through a center of the body; a plurality of arms extending from an outer edge of the body towards a center of the body, wherein the plurality of slots comprising at least one concentric ring of slots.

The present disclosure provides a method for frost heave prevention treatment of a smart gas pipeline and an Internet of Things system. The method includes: determining gas pressure change data of a target point based on gas transmission data of the target point and gas pipeline data of the target point; predicting temperature change data of the target point through a temperature model based on the gas pressure change data of the target point; and predicting, based on the temperature change data of the target point, the gas pipeline data of the target point, and the gas pressure change data of the target point, and in combination with environmental data of the target point, frost heave degree data of the target point.

The present disclosure provides a method for frost heave prevention treatment of a smart gas pipeline and an Internet of Things system. The method includes: determining gas pressure change data of a target point based on gas transmission data of the target point and gas pipeline data of the target point; predicting temperature change data of the target point through a temperature model based on the gas pressure change data of the target point; and predicting, based on the temperature change data of the target point, the gas pipeline data of the target point, and the gas pressure change data of the target point, and in combination with environmental data of the target point, frost heave degree data of the target point.

Material flow amplifiers as disclosed herein overcome drawbacks associated with known adverse flow conditions (e.g., surface erosion and head losses) that arise from flow of certain types of materials (e.g., fluids, slurries, particulates, flowable aggregate, and the like) through a material flow conduit. Such material flow amplifiers provide for flow of flowable material within a flow passage of a material flow conduit (e.g., a portion of a pipeline, tubing or the like) to have a cyclonic flow (i.e., vortex or swirling) profile. Advantageously, the cyclonic flow profile centralizes flow toward the central portion of the flow passage, thereby reducing magnitude of laminar flow. Such cyclonic flow profile provides a variety of other advantages as compared to a parabolic flow profile (e.g., increased flow rate, reduce inner pipeline wear, more uniform inner pipe wear, reduction in energy consumption, reduced or eliminated slugging and the like).

A device for dampening pulsations of a fluid includes a case which includes an upper portion and a lower portion and a diaphragm elastically deformable between a rest position and a stressed position, arranged inside the case so that the diaphragm delimits, together with the lower portion, a fluid-tight chamber. More particularly, the diaphragm has, in the rest position, a general shape of revolution around a main axis of the device cambered towards the outside of the chamber. Furthermore, the profile of the diaphragm has according to an axial section of the diaphragm at least one undulation projecting towards the inside of the chamber in the rest position so as to form an area of preferred deformation towards the inside of the chamber in the stressed position of the diaphragm.