摘要:
A method for a production of a heat exchanger for an inline measuring device includes the steps of: producing first opening provided for the connection of the heat exchanger to a temperature control piping system in a first sheet part serving for the production of one of the heat exchanger sheets; laying the first sheet part on a second sheet part serving likewise for the production of one of the heat exchanger sheets; producing an edge connection seam and inner connection locations by welding of the two superimposed sheet parts; introducing fluid through a first opening into a chamber remaining between the two sheets; superimposing a static pressure on the fluid in the chamber which exceeds a static pressure of a surrounding atmosphere to such a degree that an expansion of the chamber is initiated; and plastically deforming material of the thinner of the two sheet parts by expanding the chamber by means of the fluid with superimposed pressure.
摘要:
The apparatus includes at least one heat exchanger secured on an inline measuring device. Temperature-control fluid flows through a heat exchanger, at least at times during operation, for the purpose of transporting heat. The apparatus additionally includes securement structure for the, especially releasable, fixing of the heat exchanger externally on the inline measuring device. The heat exchanger has an inner wall especially a trough- or dish-shaped inner wall, contacting the inline measuring device externally at least partially flushly, as well as an outer wall fixed to the inner wall. The outer wall is connected with the inner wall via a connecting seam running along an edge region and sealing against escape of the temperature-control fluid, and via a plurality of, especially point, or ring, shaped, inner connection locations, which are arranged spaced from one another in an inner region at least partially enclosed by the edge connection seam. Between the inner wall and the outer wall is at least one chamber having a plurality of sections communicating with one another and serving to convey the temperature-control fluid. The chamber is connected into a piping system conveying the temperature-control fluid via openings opening into the chamber.
摘要:
The apparatus includes at least one heat exchanger (30) secured on the inline measuring device. Temperature-control fluid flows through the heat exchanger (30), at least at times during operation, for the purpose of transporting heat. The apparatus additionally includes securement means (50, 60) for the, especially releasable, fixing of the heat exchanger (30) externally on the inline measuring device (1). The heat exchanger (30) has an inner wall (32), especially a trough- or dish-shaped inner wall, contacting the inline measuring device (1) externally at least partially flushly, as well as an outer wall (31) fixed to the inner wall (32). The outer wall (31) is connected with the inner wall (32) via a connecting seam (90) running along an edge region and sealing against escape of the temperature-control fluid, and via a plurality of, especially point, or ring, shaped, inner connection locations (80), which are arranged spaced from one another in an inner region at least partially enclosed by the edge connection seam (90). Between the inner wall (32) and the outer wall (31) is at least one chamber (H) having a plurality of sections communicating with one another and serving to convey the temperature-control fluid. The chamber (H) is connected into a piping system conveying the temperature-control fluid via openings (33A, 34A) opening into the chamber.
摘要:
The apparatus includes at least one heat exchanger secured on an inline measuring device. Temperature-control fluid flows through a heat exchanger, at least at times during operation, for the purpose of transporting heat. The apparatus additionally includes securement structure for the, especially releasable, fixing of the heat exchanger externally on the inline measuring device. The heat exchanger has an inner wall, especially a trough- or dish-shaped inner wall, contacting the inline measuring device externally at least partially flushly, as well as an outer wall fixed to the inner wall. The outer wall is connected with the inner wall via a connecting seam running along an edge region and sealing against escape of the temperature-control fluid, and via a plurality of, especially point, or ring, shaped, inner connection locations, which are arranged spaced from one another in an inner region at least partially enclosed by the edge connection seam. Between the inner wall and the outer wall is at least one chamber having a plurality of sections communicating with one another and serving to convey the temperature-control fluid. The chamber is connected into a piping system conveying the temperature-control fluid via openings opening into the chamber.
摘要:
A heating element includes a support made of flexible material and a flexible grid structure with an electrically conductive paste disposed on the support.
摘要:
Flour may be treated to denature the proteins and modify starches. The invention includes methods and systems for determining whether to use treated flour or untreated flour. The invention also includes methods and systems for determining whether to treat flour or not.
摘要:
A roof for a motor vehicle incorporating a roof channel has a cage with a slider guided therein in the vicinity of a retaining means for a roof rack. The slider can be displaced in the cage from a position closing the roof rack opening into a position exposing the roof rack opening. In addition, the cage holds a cover strip for the roof channel. The slider and the cage are made from a synthetic material and can be produced and installed in a particularly economical manner.
摘要:
A vibration meter and a method of measuring a viscosity of a fluid flowing through a pipe are disclosed. The vibration meter comprises meter electronics and a transducer assembly with an electromechanical excitation arrangement and with a flow tube which oscillates in operation. A sensor arrangement produces sensor signals representative of inlet-side and outlet-side deflections of the flow tube. An evaluation circuit derives from said sensor signals and from an excitation current generated by an excitation circuit for the excitation arrangement a viscosity value representative of the viscosity of the fluid.
摘要:
A Coriolis mass flow measuring device includes a vibratory measuring transducer having at least one measuring tube, which has medium flowing through it during operation. In operation, the measuring tube is caused by an exciter arrangement to undergo mechanical oscillations, especially bending oscillations. Additionally, the Coriolis mass flow measuring device includes a sensor arrangement for producing oscillation measurement signals (s1, s2) representing the inlet-end and outlet-end oscillations of the measuring tube. Measuring device electronics controlling the exciter arrangement produces an exciter current (iexc) and an intermediate value (X′m) derived from the oscillation measurement signals (s1, s2). This intermediate value represents an uncorrected mass flow. Derived from the exciter current and/or from a component of the exciter current (iexc), an intermediate value (X2) is produced, which corresponds to a damping of the oscillations of the measuring tube. This damping is especially a function of an apparent viscosity, and/or a viscosity-density product, of the medium guided in the measuring tube. Furthermore, a correction value (XK) is produced for the intermediate value (X′m) utilizing the intermediate value (X2) and a viscosity measurement value (Xη) determined initially or during operation. The viscosity measurement value (Xη) corresponds to a viscosity of the medium guided in the measuring tube and/or to a predetermined reference viscosity. On the basis of the intermediate value (X′m) and the correction value (XK), the measuring device electronics then produces an exact mass flow rate measurement value (Xm).
摘要:
An inline measuring device includes a vibration-type measurement pickup having at least one measuring tube, which has a medium to be measured flowing through it during operation. The measuring tube is made by means of an exciter arrangement to execute, at least at times and/or at least in part, lateral oscillations and, at least at times and/or at least in part, torsional oscillations about an imaginary measuring tube longitudinal axis. The torsional oscillations alternate with the lateral oscillations or are, at times, superimposed thereon. Also included is a sensor arrangement for producing oscillation measurement signals correspondingly representing oscillations of the measuring tube. Measuring device electronics controlling the exciter arrangement generates, by means of at least one of the oscillation measurement signals and/or by means of the exciter current, at least at times, at least one measured value, which represents the at least one physical quantity to be measured. Additionally, the measuring device electronics also determines a first intermediate value, which corresponds to the lateral current component of the exciter current serving to maintain the lateral oscillations of the measuring tube and/or to a damping of the lateral oscillations of the measuring tube, as well as a second intermediate value, which corresponds to a torsional current component of the exciter current serving to maintain the torsional oscillations of the measuring tube and/or to a damping of the torsional oscillations of the measuring tube. With the goal of producing the measured value at high accuracy, such value is determined also taking into consideration these two intermediate values. The measured value obtained in this way is distinguished especially by high accuracy also in the case of media of two, or more, phases.