System for measuring temporally resolved through-flow processes of fluids

Patent metadata

Field	Value
Publication number	US-10094378-B2
Application number	US-201615075207-A
Country	US
Kind code	B2
Filing date	Mar 21, 2016
Priority date	Mar 24, 2015
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A system for measuring temporally resolved through-flow processes of a fluid. The system includes an inlet, a main line comprising a line section, an outlet fluidically connected with the inlet via the main line, a displacement device arranged in the main line, a circuitous line which branches off the main line between the inlet and the displacement device and to enter the main line between the displacement device and the outlet, a pressure difference transducer arranged in the circuitous line, an evaluation and control unit which controls the displacement device, and a bypass line comprising a pump and a sensor. The bypass line branches off from the main line or from the circuitous line and ends at a same side of the displacement device and the pressure difference transducer to bypass the line section or the circuitous line from which the bypass line branches off.

First claim

What is claimed is:

1. A system for measuring temporally resolved through-flow processes of a fluid, the system comprising:
an inlet;
an outlet;
a bypass line comprising a pump and a sensor connected in series, the sensor being configured to measure a physical property or a chemical property of the fluid; and
a through-flow meter arranged between the inlet and the outlet, the through-flow meter comprising a line section,
wherein, the line section of the through-flow meter is configured to be passed by the fluid via the bypass line in which the pump and the sensor are connected in series.

2. A system for measuring temporally resolved through-flow processes of a fluid, the system comprising:
an inlet;
a main line comprising a line section;
an outlet fluidically connected with the inlet via the main line;
a displacement device configured to be driven in and arranged in the main line;
a circuitous line which branches off the main line between the inlet and the displacement device and to enter the main line between the displacement device and the outlet;
a pressure difference transducer arranged in the circuitous line;
an evaluation and control unit configured to control the displacement device as a function of a pressure difference prevailing at the pressure difference transducer; and
a bypass line comprising a pump and a sensor connected in series, the sensor being configured to measure a physical property or a chemical property of the fluid, the bypass line being arranged to branch off from the main line or from the circuitous line and to end at a same side of the displacement device and the pressure difference transducer so as to bypass the line section of the main line or the circuitous line from which the bypass line branches off.

3. The system as recited in claim 2 , wherein the bypass line branches off and ends at the circuitous line between the inlet and the pressure difference transducer.

4. The system as recited in claim 2 , wherein the sensor is a density sensor or a viscosity sensor.

5. The system as recited in claim 4 , wherein the pump is configured to deliver in a pulsation-free manner.

6. The system as recited in claim 5 , wherein the pump is a Tesla pump.

7. The system as recited in claim 6 , wherein the Tesla pump is arranged upstream of the sensor as seen in a direction of delivery.

8. The system as recited in claim 6 , wherein,
the bypass line comprises a branch,
the Tesla pump comprises an inlet to a flow space in which a rotor is arranged, and
the inlet is arranged geodetically below the branch of the bypass line.

9. The system as recited in claim 8 , wherein, the bypass line comprises a first bypass line section which is defined between the branch and the inlet to the flow space of the Tesla pump so that the first bypass line section comprising an inclination which continuously descends towards the inlet of the Tesla pump.

10. The system as recited in claim 9 , wherein the inclination of the first bypass line section between the branch and the inlet of the Tesla pump is between 9° and 12°.

11. The system as recited in claim 8 , wherein the Tesla pump further comprises an outlet, the outlet being arranged geodetically above the flow space of the Tesla pump.

12. The system as recited in claim 11 , wherein the Tesla pump further comprises an outlet duct which is configured to ascend in a direction of delivery.

13. The system as recited in claim 12 , wherein,
the sensor comprises a sensor inlet and a sensor outlet, and
the circuitous line further comprises an opening,
the system further comprising:
a body in which the circuitous line is defined;
a second bypass line section arranged between the outlet duct of the Tesla pump and the sensor inlet;
a third bypass line section arranged between the sensor outlet and the opening into the circuitous line; and
a solid body connected with the body, the solid body being configured so that the flow space of the Tesla pump, the inlet of the Tesla pump, the outlet duct of the Tesla pump, the second bypass line section, the sensor inlet, and the third bypass line section are each at least partially defined thereby.

14. The system as recited in claim 2 , wherein,
the bypass line comprises a through-flow cross-section,
the circuitous line comprises a through-flow cross-section,
the main line comprises a through flow-cross section, and
the through-flow cross section of the bypass line is smaller than the through-flow cross-section of the main line and the through-flow cross section of the circuitous line.

Assignees

• Avl List Gmbh

Inventors

• Kammerstetter Heribert
• Berger Christian Thomas
• Derschmidt Otfried
• Pross Manfred
• Duerrwaechter Martin
• Breitwieser Herwig
• Bernhard Othmar

Classifications

• G01F1/34 Primary

  by measuring pressure or differential pressure · CPC title

• G01N11/08

  by measuring pressure required to produce a known flow · CPC title

• G01F3/16

  in stationary cylinders · CPC title

• G01F15/02 Primary

  Compensating or correcting for variations in pressure, density or temperature · CPC title

• G01F15/185

  Connecting means, e.g. bypass conduits · CPC title