Methods and apparatus to monitor health information of a valve

Patent metadata

Field	Value
Publication number	US-9915375-B1
Application number	US-201715429685-A
Country	US
Kind code	B1
Filing date	Feb 10, 2017
Priority date	Feb 10, 2017
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

Methods, apparatus, and articles of manufacture to monitor health information of a valve are disclosed. An example apparatus includes a parameter calculator to calculate an operational value for a health parameter of a valve, a difference calculator to calculate a difference between the operational value for the health parameter and a baseline value for the health parameter, and an alert generator to generate an alert to identify a condition of the valve based on the difference.

First claim

What is claimed is:

1. An apparatus comprising:
a collection engine to obtain operational health information from a valve in response to the valve being commanded to move from a first position to a second position, the first position opposite the second position;
a parameter calculator to calculate an operational value for a health parameter of the valve based on the operational health information; and
a difference calculator to calculate a difference between the operational value for the health parameter and a baseline value for the health parameter.

2. The apparatus of claim 1 , further including an alert generator to identify a condition of the valve when the difference satisfies a threshold and generate an alert, the alert including the condition, the condition including a degradation of the valve.

3. The apparatus of claim 1 , further including the collection engine to obtain baseline health information from the valve and the parameter calculator to calculate the baseline value for the health parameter.

4. The apparatus of claim 1 , further including a trend analyzer to update a trend status and a trend value based on the difference.

5. The apparatus of claim 1 , wherein the collection engine determines the valve is being commanded to move from the first position to the second position by obtaining data acquisition trigger information including a start data acquisition command, the start data acquisition command including a value corresponding to the valve beginning or ending a full-stroke valve operation.

6. The apparatus of claim 4 , wherein the trend status includes a deteriorating status, a failing status, or a warning status.

7. A method comprising:
obtaining operational health information from a valve in response to the valve being commanded to move from a first position to a second position, the first position opposite the second position;
calculating an operational value for a health parameter of the valve based on the operational health information; and
calculating a difference between the operational value for the health parameter and a baseline value for the health parameter.

8. The method of claim 7 , further including identifying a condition of the valve when the difference satisfies a threshold and generating an alert, the alert including the condition, the condition including a degradation of the valve.

9. The method of claim 7 , further including obtaining baseline health information from the valve and calculating the baseline value for the health parameter.

10. The method of claim 7 , further including updating a trend status and a trend value based on the difference.

11. The method of claim 10 , wherein the trend status includes a deteriorating status, a failing status, or a warning status.

12. The method of claim 7 , wherein the valve being commanded to move from the first position to the second position is determined by obtaining data acquisition trigger information including a start data acquisition command, the start data acquisition command including a value corresponding to the valve beginning or ending a full-stroke valve operation.

13. A tangible computer-readable storage medium comprising instructions which when executed, cause a machine to at least:
obtain operational health information from a valve in response to the valve being commanded to move from a first position to a second position, the first position opposite the second position;
calculate an operational value for a health parameter of the valve based on the operational health information; and
calculate a difference between the operational value for the health parameter and a baseline value for the health parameter.

14. The tangible computer-readable storage medium of claim 13 , further including instructions which when executed, cause the machine to at least identify a condition of the valve when the difference satisfies a threshold and generate an alert, the alert including the condition, the condition including a degradation of the valve.

15. The tangible computer-readable storage medium of claim 13 , further including instructions which when executed, cause the machine to at least obtain baseline health information from the valve and calculating the baseline value for the health parameter.

16. The tangible computer-readable storage medium of claim 13 , further including instructions which when executed, cause the machine to at least update a trend status and a trend value based on the difference.

17. The tangible computer-readable storage medium of claim 16 , wherein the trend status includes a deteriorating status, a failing status, or a warning status.

18. The tangible computer-readable storage medium of claim 13 , wherein the valve being commanded to move from the first position to the second position is determined by obtaining data acquisition trigger information including a start data acquisition command, the start data acquisition command including a value corresponding to the valve beginning or ending a full-stroke valve operation.

Assignees

• Fisher Controls Int Llc

Inventors

• Anderson Shawn William

Classifications

• G05B2219/33326

  Analyzer, diagnostic for servovalve · CPC title

• G08B21/18

  Status alarms (G08B21/02 takes precedence) · CPC title

• F16K37/0083 Primary

  by measuring valve parameters · CPC title

• G05B23/0235

  based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold · CPC title

• G05B19/042 Primary

  using digital processors (G05B19/05 takes precedence) · CPC title