# US 2018/0320827 A1 · A method and system for simulating a leak in a pipeline, and an outlet for coupling a conduit to a pipeline

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- Number: US 2018/0320827 A1
- Document ID: US20180320827A1
- Status: Published application
- Kind: A1
- Application number: 15/773,965
- Filed: 2016-11-03
- Published: 2018-11-08
- Earliest claimed: 2015-11-05
- Assignees: Hifi Engineering Inc.
- Applicants: Hifi Engineering Inc.
- Inventors: John Hull; Seyed Ehsan Jalilian; Oleksiy Pletnyov
- Web page: https://patentgrep.com/patent/US20180320827A1

## CPC

- F17D 5/02: Preventing, monitoring, or locating loss
- G01M 3/2815: {using pressure measurements}
- F17D: PIPE-LINE SYSTEMS; PIPE-LINES (pumps or compressors F04; fluid dynamics F15D; valves or the like F16K; pipes, laying pipes, supports, joints, branches, repairing, work on the entire line, accessories F16L; steam traps or the like F16T; fluid-pressure electric cables H01B9/06)
- G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR

## Abstract

Various embodiments provide a method of simulating a leak in a pipeline. The method includes: receiving a fluid stream from a fluid supply; and outputting the received fluid stream through an outlet such that the received fluid stream hits an outer surface of the pipeline at a location opposite the outlet such that a vibration is caused in the pipeline. Some other embodiments provide a corresponding system for simulating a leak in a pipeline, and a corresponding outlet for coupling a conduit to a pipeline.

## Claims

### Claim 1

A method of simulating a leak in a pipeline, the method comprising:
(a) receiving a fluid stream from a fluid supply; and
(b) outputting the received fluid stream through an outlet such that the received fluid stream hits an outer surface of the pipeline at a location opposite the outlet such that a vibration is caused in the pipeline.

### Claim 2 (depends on 1)

The method of claim 1, further comprising coupling the outlet to the outer surface of the pipeline prior to outputting the received fluid stream through the outlet.

### Claim 3 (depends on 2)

The method of claim 2, further comprising varying a pressure of the received fluid stream output through the outlet.

### Claim 4 (depends on 2)

The method of claim 2, further comprising:
determining a flow rate of the received fluid stream output through the outlet; and
generating an alarm based on the determined flow rate.

### Claim 5 (depends on 4)

The method of claim 4, wherein the alarm is generated only if the determined flow rate is below a threshold flow rate.

### Claim 6 (depends on 1)

The method of claim 1, further comprising heating or cooling the received fluid stream to a preset temperature before outputting the received fluid stream through the outlet.

### Claim 7 (depends on 6)

The method of claim 6, wherein the preset temperature is the temperature of a substance being transported inside the pipeline.

### Claim 8 (depends on 2)

The method of claim 2, further comprising:
coupling a plurality of different outlets at different locations on the outer surface of the pipeline; and
selecting one of the plurality of different outlets as the outlet through which the received fluid stream is output.

### Claim 9 (depends on 8)

The method of claim 8, further comprising:
selecting at least two of the plurality of different outlets; and,
simultaneously outputting the received fluid stream through the selected at least two outlets such that the received fluid stream hits the outer surface of the pipeline at locations opposite each of the at least two selected outlets such that multiple separate vibrations are caused in the pipeline.

### Claim at position 10

-13. (canceled)

### Claim 14

A system for simulating a leak in a pipeline, the system comprising:
a pipeline;
a fluid supply operable to generate a fluid stream;
an inlet in fluid communication with the fluid supply so as to receive the fluid stream therefrom;
a control valve having a valve input, a valve output and a control port, the valve input being in fluid communication with the inlet so as to receive the fluid stream therefrom, the control valve being operable to selectively permit or prevent communication of the fluid stream from the valve input to the valve output based on a control signal received at the control port;
a controller communicatively coupled to the control port and operable to provide the control signal to the control port;
an outlet in fluid communication with the valve output, the outlet being fixed to the pipeline such that, when the control valve permits communication of the fluid stream from the valve input to the valve output, the fluid stream is output onto an outer surface of the pipeline such that a vibration is caused in the pipeline.

### Claim 15 (depends on 14)

The system of claim 14, wherein the control valve is operable to vary an amount of the fluid stream which is permitted to communicate from the valve input to the valve output based on the control signal received at the control port.

### Claim 16 (depends on 15)

The system of claim 15, wherein the controller comprises:
a computer operable to generate an electronic control signal;
a transducer having a transducer input, a transducer output and a control terminal, the control terminal being communicatively coupled to the computer so as to receive the electronic control signal therefrom, the transducer input being in fluid communication with the inlet so as to receive the fluid stream therefrom, the transducer being operable to vary a pressure of the fluid stream received at the transducer input based on the electronic control signal received at the control terminal to generate a fluid control signal and to output the fluid control signal from the transducer output; and
wherein the control port is in fluid communication with the transducer output, and wherein the control valve is operable to vary the amount of the fluid stream which is permitted to communicate from the valve input to the valve output based on a variation in pressure of the fluid control signal received at the control port.

### Claim 17 (depends on 16)

The system of claim 16, wherein the controller further comprises:
a shutoff valve having a shutoff terminal communicatively coupled to the computer, the shutoff valve being in fluid communication with the transducer input and operable to selectively permit or prevent flow of the fluid stream to the transducer input based on an electronic control signal received at the shutoff terminal from the computer to selectively permit or prevent output of the fluid control signal from the transducer output, and
wherein the control valve is operable to prevent communication of the fluid stream from the valve input to the valve output when the fluid control signal is absent at the control port.

### Claim 18 (depends on 16)

The system of claim 16, further comprising a first fluid pressure regulator in fluid communication with the inlet and the valve input, the first fluid pressure regulator being operable to limit a maximum pressure of the fluid stream received at the valve input.

### Claim 19 (depends on 16)

The system of claim 16, further comprising a second fluid pressure regulator in fluid communication with the inlet and the transducer input, the second fluid pressure regulator being operable to limit a maximum pressure of the fluid stream received at the transducer input.

### Claim 20 (depends on 16)

The system of claim 16, further comprising an input fluid pressure sensor communicatively coupled to the computer, the input fluid pressure sensor being in fluid communication with the inlet and the valve input, the input fluid pressure sensor being operable to measure a pressure of the fluid stream received at the valve input to generate an input pressure measurement and being further operable to supply the input pressure measurement to the computer.

### Claim 21 (depends on 20)

The system of claim 20, further comprising an output fluid pressure sensor communicatively coupled to the computer, the output fluid pressure sensor being in fluid communication with the valve output and the outlet, the output fluid pressure sensor being operable to measure a pressure of the fluid stream output from the valve output to generate an output pressure measurement and being further operable to supply the output pressure measurement to the computer.

### Claim 22 (depends on 21)

The system of claim 21, wherein the computer is operable to vary the electronic control signal supplied to the control terminal based on the input pressure measurement and the output pressure measurement to cause the control valve to vary an amount of the fluid stream which is permitted to communicate from the valve input to the valve output such that the output pressure measurement is maintained at a preset value.

### Claim 23 (depends on 16)

The system of claim 16, further comprising a fluid flow meter communicatively coupled to the computer, the fluid flow meter being in fluid communication with the valve output and the outlet, the fluid flow meter being operable to measure a flow rate of the fluid stream output from the valve output to generate an output flow measurement and being further operable to supply the output flow measurement to the computer; and
wherein the computer is operable to generate an alarm signal based on the output flow measurement.

### Claim 24 (depends on 16)

The system of claim 16, further comprising a fluid heating chamber communicatively coupled to the computer, the fluid heating chamber being in fluid communication with the inlet and the valve input;
wherein the computer is operable to provide a heating control signal to the fluid heating chamber; and
wherein the fluid heating chamber is operable to heat the fluid stream received at the valve input to a preset temperature based on the heating control signal received from the computer.

### Claim 25 (depends on 16)

The system of claim 16, further comprising a compressor in fluid communication with the inlet and communicatively coupled to the computer,
wherein the computer is operable to provide a fluid generation control signal to the compressor; and
wherein the compressor is operable to generate the fluid stream received by the inlet by compressing ambient air, based on the fluid generation control signal received from the computer.

### Claim 26 (depends on 16)

The system of claim 16, wherein the computer comprises a wireless communication module operable to receive a communication signal from a remote device, the computer being operable to generate control signals based on the communication signal.

### Claim 27 (depends on 16)

The system of claim 16, further comprising a selection unit having a selection terminal communicatively coupled to the computer and an outlet valve in fluid communication with the valve output and the outlet;
wherein the computer is operable to provide a selection control signal to the selection unit; and
wherein the selection unit is operable to control the outlet valve to selectively permit or prevent flow of the fluid stream output from the valve output to the outlet based on the selection control signal received at the selection terminal from the computer.

### Claim at position 25

-34. (canceled)