Energy Efficient Pilots (EEP)
Shutdown Items
| 1.0 |
Inspect pilot tip for visible deformations and weld cracks. Replace in kind if necessary. |
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| 2.0 |
Inspect pilot mixer for cracks. Replace in kind if necessary. |
| 3.0 |
Inspect orifice spud. Ensure spud is straight and plumb. Clean orifice and confirm drilling. Replace in kind if necessary. |
| 4.0 |
Inspect strainer at pilot mixer. Clean screen and replace in kind if necessary. |
| 5.0 |
Replace pilot thermocouple. Ensure that the thermocouple tip seats fully in the thermowell. |
| Note: If the T/C has been in service more than 12 months, replace it regardless of apparent condition. |
| 6.0 |
Inspect ignition lines for low points and sagging. If possible, correct low points by adjusting the slope of the line. Any low points which cannot be eliminated must be equipped with drain plugs. Drain all low points. |
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| 7.0 |
Break the ignition line at the base of the stack (and/or any other low point). Vigorously rattle the ignition line to remove scale. |
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| 8.0 |
Inspect strainer at grade. Clean screen and replace in kind if necessary. |
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| 9.0 |
Check pilot gas regulator. Replace diaphragm on a regular schedule. |
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Periodic On-line Items
Access to pilots while the flare is on-line is not safe.
When necessary, inspection can be accomplished using binoculars. From a safe distance, inspect the pilot at night for any sign of a red glow.
| 1.0 |
The back of the ignition hood normally glows a dull red. This is caused by a small pilot stability fire that burns continuously inside the hood. |
| 2.0 |
A dull glow slightly farther down the ignition line of the downwind pilot may be caused by the normal ignition hood fire. Re-inspect after the wind direction changes. |
| 3.0 |
A bright-red glow on the ignition hood and/or smoke at the pilot indicates that raw gas is being fed into the ignition line. Close the ignition gas valve at the FFG. Open the air valve at the FFG for several minutes to cool the pilot hood. Close the air valve and re-inspect the pilot. |
| 4.0 |
Paint damage and/or a red glow at the FFG also indicates an open or leaky ignition gas valve on the FFG. Close the gas valve immediately. |
| 5.0 |
A glow near the pilot mixer indicates that the pilot has flashed back to the mixer. This usually indicates that the pilot tip has deteriorated significantly. Replace the pilot tip as soon as possible. The following procedure should be followed to try to eliminate the burning at the mixer. |
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5.1 |
Release enough combustible gas to the flare to establish a steady flame on the flare tip. Maintain this gas flow to the flare throughout the procedure. |
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5.2 |
Extinguish the pilots by shutting off the pilot-gas supply valve. |
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5.3 |
Allow time for the mixers to cool. |
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5.4 |
Open the pilot-gas supply valve and relight the pilots. |
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5.5 |
When pilot ignition is confirmed, resume normal purge rates to the flare. |
Contact a Zink® representative for more turnaround
details.
1-800-755-4252
(in U.S. & Canada)
+1-918-234-2751
(International)
|
+352-51899-332 |
+65-6732-7555 |
John Zink Company, LLC
11920 East Apache
Tulsa, OK 74116
United States of America
+1-918-234-1800
email: info@johnzink.com
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