Claims
- 1. A device for determining steam quality of wet steam at critical flow in a line, said device comprising:
- a nozzle positioned in said line and having a throat substantially coaxial therewith;
- a velocity measuring means positioned in the throat of said nozzle whereby the velocity of said steam through the nozzle is measured;
- first pressure gauge means in said flow line upstream of the nozzle;
- second pressure gauge means in said flow line downstream of the nozzle;
- signal process means connected to receive an output from said velocity measuring means and to calculate the quality of the steam from the value of the measured critical velocity; and
- meter means connected to said signal process means to display the calculated quality.
- 2. A device for determining steam quality of wet steam at critical flow in a steam line, said device comprising:
- sampling probe means for selective insertion into said steam line;
- conduit means connected to said sampling probe and containing a nozzle through which the steam sample flows at critical flow condition; and
- velocity transducer means at the throat of said nozzle whereby the velocity of the sampled steam at critical flow is measured;
- first pressure gauge means connected to said conduit means upstream of the nozzle;
- second pressure gauge means connected to said conduit means downstream of the nozzle;
- signal processing means connected to said velocity transducer means to calculate steam quality from the measured critical velocity; and
- meter means connected to said signal processing means to display the calculated steam quality.
CROSS REFERENCE TO RELATED PATENT APPLICATION
This is a Continuation-in-Part of my patent applications Ser. No. 07/597,646, filed Oct. 15, 1990, now abandoned.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
597646 |
Oct 1990 |
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