摘要:
A compact vibratory flowmeter (200) for measuring flow characteristics of a cement flow material at a cement flow material pressure of greater than about 10 pounds-per-square-inch (psi) is provided according to an embodiment of the invention. The compact vibratory flowmeter (200) includes at least two pickoff sensors (308) and a driver (309). The compact vibratory flowmeter (200) further includes one or more flow conduits (301). The at least two pickoff sensors (308) are affixed to the one or more flow conduits (301) and the driver (309) is configured to vibrate the one or more flow conduits (301). The one or more flow conduits (301) include a drive frequency that is less than about 200 Hertz (Hz) and a frequency ratio of the drive frequency to a fluid resonant frequency of the cement flow material that is less than about 0.8.
摘要:
The invention relates to a vibration-type sensor (13), in particular for detecting and/or monitoring at least one processing variable of a flowable medium being conducted in a pipeline, said measuring sensor (13) comprising at least the following: a housing module (3), which is mechanically coupled to the pipeline via an inlet-side end and an outlet-side end, and a sensor module (7) with at least one measuring pipe (9a, 9b), which is held at least partly in the housing module (3) in a vibratable manner and which is at least temporarily vibrated, wherein at least one component of the housing module (3) and/or the sensor module (7) is produced by means of a generative method. The invention also relates to a method for producing at least one component of a vibration-type sensor (13), said method at least having the step of producing the at least one component using a digital data set, which specifies at least the shape and/or the material and/or the structure of the at least one component, by means of a primary forming process, in particular by placing and/or melting a powder in layers, in particular a metal powder.
摘要:
A method of controlling a weld penetration profile on a workpiece (306) having an outer region and an inner region is described. The method comprises the step of applying energy to the outer region of the workpiece with a welder (302) to produce a weld pool (304). The method also comprises the steps of penetrating the workpiece (306) such that the weld pool (304) spans between the outer region and inner region, and also applying a shielding gas to the inner region at a pressure that provides a force that limits weld penetration. A corresponding apparatus is also defined.
摘要:
The invention relates to a method for trimming a pipe (11), which has at least one reinforcement body (151) mounted on the pipe wall thereof, to a target flexural rigidity, wherein the pipe initially has an interim flexural rigidity greater than the target flexural rigidity. In order to reduce the interim flexural rigidity of the pipe to the target flexural rigidity, according to the method partial volumes (151') of the reinforcement body (151) are ablated, for example by means of a laser.
摘要:
A corrosion-resistant vibratory flowmeter (5) is provided. The flowmeter (5) includes a flowmeter assembly (10) including one or more flow tubes (103) configured to be vibrated and a diffusion coating (202) over at least a portion of the flowmeter assembly (10). The diffusion coating (202) is diffused into and comprises a part of the flowmeter assembly (10).
摘要:
The method involves allowing medium to be measured to flow through a measuring tube of an in-line measurement device (1). A measurement signal influenced by a physical parameter e.g. flow rate, of the medium is produced using a sensor arrangement of the device, which reacts to the change in the parameter. Measured values digitally representing the flow parameter of the medium are produced by considering a pressure difference of the medium and by the usage of transfer function. An independent claim is also included for a measurement system for measuring a physical flow parameter e.g. mass flow rate, of a medium.
摘要:
A compact vibratory flowmeter (200) for measuring flow characteristics of a multi-phase flow material at a flow material pressure of greater than about 10 pounds-per-square-inch (psi) is provided according to an embodiment of the invention. The compact vibratory flowmeter (200) includes one or more flow conduits (301), at least two pickoff sensors (308), and a driver (309). The compact vibratory flowmeter (200) further includes a maximum water drive frequency in the one or more flow conduits (301) that is less than about 250 Hertz (Hz) and an aspect ratio (L/H) of the one or more flow conduits (301) that is greater than about 2.5. A height-to-bore ratio (H/B) of the one or more flow conduits (301) is less than about 10 and a bowed flow conduit geometry includes end bend angles Θ of between about 120 degrees and about 170 degrees.
摘要:
Die Erfindung betrifft ein Verfahren zum Betreiben eines Massendurchflußmeßgeräts, das nach dem Coriolis-Prinzip arbeitet, wobei das Massendurchflußmeßgerät ein von einem Medium durchströmtes Meßrohr (1) aufweist, das Meßrohr (1) zu einer vorbestimmten Schwingung angeregt wird und die resultierende Schwingungsantwort des Meßrohrs (1) erfaßt wird. Erfindungsgemäß ist vorgesehen, daß die für die Anregung der vorbestimmten Schwingung des Meßrohrs (1) erforderliche Antriebsleistung erfaßt wird und mittels der erfaßten Antriebsleistung das Vorliegen einer Mehrphasenströmung des durch das Meßrohr (1) strömenden Mediums detektiert wird. Auf diese Weise können Meßgenauigkeit und Zuverlässigkeit des Meßverfahrens erheblich verbessert werden.