Device for controlling the swirl of a fluid flowing in a pipeline

Abstract

The invention relates to a device for controlling the swirl of a fluid (2) flowing in a pipeline (1). The invention was based on the object of creating a device with which the adaptation of the swirl (2B) of a fluid (2) flowing in a pipeline (1), even in the case of constantly changing initial swirl (2B), to the desired flow conditions in the pipeline (1) is possible. Said object is achieved in that a swirl measuring device (4) and a swirl control device (6) are provided at predetermined positions of the pipeline (1), and the device has an evaluation and encoder unit (5), wherein, in the presence of differences between the measured actual swirl (2B) and the desired swirl, a corrective value can be determined by means of the evaluation and encoder unit (5), and the swirl control device (6) corresponds with the evaluation and encoder unit (5) and, by means of the swirl control device (6), the present swirl (2B) can be adapted to the predetermined desired swirl in accordance with the determined corrective value.

Claims

1. A device comprising a swirl measuring device, a swirl control device, and an evaluation and encoder unit, wherein the swirl measuring device and the swirl control device are provided at predetermined positions of a pipeline, and wherein the pipeline contains fluid having a flow direction; wherein, the swirl measuring device measures present swirl of the fluid and transmits present swirl data to the evaluation and encoder unit, wherein present swirl data is compared in the evaluation and encoder unit with a desired swirl associated for the fluid at the position of the swirl measuring device; wherein, in presence of differences between the measured actual swirl data and the desired swirl, a corrective value is determined by the evaluation and encoder unit, and wherein the swirl control device corresponds with the evaluation and encoder unit; and, wherein the swirl control device adapts swirl of the fluid to the predetermined desired swirl in accordance with the determined corrective value; and the pipeline comprises a pre-cooler through which the fluid flows.

2. The device according to claim 1, wherein swirl of the fluid flowing in the pipeline is controlled by the device.

3. The device according to claim 1, wherein the pipeline is a charge-air line.

4. The device according to claim 1, wherein swirl of the fluid upstream of the pre-cooler is controlled such that it assumes a predetermined value required for optimum efficiency of the pre-cooler.

5. The device according to claim 1, wherein the swirl measuring device and the swirl control device are arranged upstream of the pre-cooler.

6. The device according to claim 1, wherein the evaluation and encoder unit is an electronic evaluation and encoder unit.

7. The device according to claim 1, the evaluation and encoder unit compares a measurement signal of the swirl measuring device with a predefined setpoint value and generates and provides a corrective value to the swirl controller based on the comparison.

8. The device according to claim 1, wherein in the flow direction of the fluid, the swirl control device is arranged first, and the swirl measuring device is arranged downstream.

9. The device according to claim 8, wherein actual swirl of the fluid is monitored.

10. The device according to claim 9, wherein the actual swirl of the fluid is maintained according to the predetermined desired swirl.

11. A device comprising a swirl measuring device, a swirl control device, and an evaluation and encoder unit, wherein the swirl measuring device and the swirl control device are provided at predetermined positions of a pipeline, and wherein the pipeline contains fluid having a flow direction; wherein, the swirl measuring device measures present swirl of the fluid and transmits present swirl data to the evaluation and encoder unit, wherein present swirl data is compared in the evaluation and encoder unit with a desired swirl associated for the fluid at the position of the swirl measuring device; wherein, in presence of differences between the measured actual swirl data and the desired swirl, a corrective value is determined by the evaluation and encoder unit, and wherein the swirl control device corresponds with the evaluation and encoder unit; wherein the swirl control device adapts swirl of the fluid to the predetermined desired swirl in accordance with the determined corrective value; and wherein in the flow direction of the fluid, the swirl measuring device is arranged first, and the swirl control device is arranged downstream.

12. The device according to claim 11, wherein actual swirl of the fluid is identified at an early point in time, and intended swirl of the fluid, according to the predetermined desired swirl, is achieved upstream of an inlet into flow zones of the pipeline.

Description

(1) An example of the invention is explained in more detail below on the basis of the drawing.

(2) FIG. 1 shows a diagrammatic illustration of the device according to the invention.

(3) A fluid 2 (not discussed in any more detail) illustrated as an arrow 2A flows through a pipeline 1, in this case in the form of a charge-air line. The pipeline 1 has a pre-cooler 3 through which the fluid 2 flows. The fluid 2 exhibits swirl, which is symbolized here by a rotational arrow 2B.

(4) In a swirl measuring device 4 known per se, which is illustrated merely symbolically here and which is arranged upstream of the pre-cooler 3 in the flow direction of the fluid 2, the swirl 2B of the fluid 2 can be measured, wherein, by means of the measuring device 4, a measurement signal (not illustrated here) can be generated which can be transmitted to an electronic evaluation and encoder unit 5.

(5) In the evaluation and encoder unit 5, the measurement signal of the swirl measuring device 4 can be compared with a predefined setpoint value stored in the evaluation and encoder unit 5, wherein possible deviations between the actual measured swirl 2B and the predefined setpoint value can be identified by means of the evaluation and encoder unit 5. If a deviation arises, a corrective value can be generated by means of the evaluation and encoder unit 5, which corrective value can be transmitted to a swirl controller 6 which is likewise known per se and which is arranged between the swirl measuring device 4 and the pre-cooler 3. By means of the swirl controller 6, the swirl 2B of the fluid 2 can be controlled to a predetermined value in accordance with the corrective value of the evaluation and encoder unit 5.

(6) In this way, it is possible for the swirl 2B upstream of the pre-cooler 3 to be controlled such that it assumes the predetermined value required for optimum efficiency of the pre-cooler 3, virtually independently of the original swirl 2B.

LIST OF REFERENCE DESIGNATIONS

(7) 1 Pipeline 2, 2A Fluid 2B Swirl of the fluid 2 3 Pre-cooler 4 Swirl measuring device 5 Evaluation and encoder unit 6 Swirl controller