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Reg. 526, Reg. 527,
Reg. 528
STANDARD CONDITIONS FOR THE DESIGN AND
CONSTRUCTION
OF ECONOMIZER, FEED PIPES, FEED HEATERS AND OTHER SIMILAR
VESSELS
REGULATIONS FOR REGISTRATION AND INSPECTION OF ECONOMISERS
AND FEED PIPES
Procedure at subsequent inspection |
| a) |
After the economiser has been cleaned the Inspector
shall make a thorough examination so far as its construction
permits. The external condition of the tubes should
be carefully noted for wasting especially at the feed
inlet end and all accessible tubes should be calibered.
The internal surfaces of cast iron tubes should be closely
observed for graphitic wasting as far as it is possible
and in the event of any tube failure these should be
broken up for scrutiny so that the general internal
condition of the other tubes may be estimated.
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| b) |
Where tubes or other
parts are wasted, the strength should be recalculated. |
| c) |
The scraper gear should
be examined to note if any parts are missing if the length
of travel is adequate and if the scrapers are correctly
adjusted. |
| d) |
All cap bolts are
to be inspected, also the condition and position of the
dampers and baffles. |
| e) |
The record of each
inspection and calculations will be entered in the Memorandum
of Inspection Book.
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Reg. 527
STANDARD CONDITIONS FOR THE DESIGN AND
CONSTRUCTION
OF ECONOMIZER, FEED PIPES, FEED HEATERS AND OTHER SIMILAR
VESSELS
REGULATIONS FOR REGISTRATION AND INSPECTION OF ECONOMISERS
AND FEED PIPES
Procedure for Hydraulic test |
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Every economiser for registration shall be hydraulically
tested in the presence of an Inspector to 1 ½
times the working pressure. Hydraulic tests of economisers
at subsequent examinations shall when required by the
Inspector, be made after the inspection. The test pressure
to be applied to economisers at subsequent examinations
shall be from 1-1/4 to 1-1/2 times the working pressure
of the economisers. During the test, all parts externally
and in the flues shall be noted for leakage.
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Reg. 528
STANDARD CONDITIONS FOR THE DESIGN AND
CONSTRUCTION
OF ECONOMIZER, FEED PIPES, FEED HEATERS AND OTHER SIMILAR
VESSELS
REGULATIONS FOR REGISTRATION AND INSPECTION OF ECONOMISERS
AND FEED PIPES
Memorandum of Inspection Book |
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In this book the Inspector shall enter all particulars
and dimensions of the economiser with the required calculations
for the various parts together with details of hydraulic
test. At subsequent inspection the Inspector shall enter
all notes pertaining to the condition of the various
parts.
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