(1) The base of the two supports must be on the same level, ensuring that the 4 mark lines on the outside of the vessel's simplified orientation at both ends are level
(2) Horizontal adsorber movable support: after the installation level is adjusted, the first nut on the support is tightened and then backed up one turn, then locked with the second nut
(3) After the horizontal adsorber is in place, the level of its internal orifice plate <10mm is tested to confirm the level of the marker bar.
(4) Open the manhole to check - whether the inner parts of the vessel are intact, whether the upper. Whether the lower distributor is firm, the gap between the orifice plates < 1mm, whether there are impurities in the container, oil, etc., otherwise the corresponding treatment must be carried out.
(5) The container shell, air into and out of the container pipeline of small air separation unit, dirty nitrogen from the cold box to the container, pipeline (in addition to the emptying pipeline) out of the heater to the adsorber between the pipeline must be insulated.
(6) The electric heater outlet to the adsorber inlet should be as close as possible.
(7) Switching valve: should be installed in strict accordance with the valve manufacturer's installation requirements. The direction of the arrow on the valve body should be consistent with the direction of media flow.
(8) After the system in small air separation unit is installed, make a gas tightness test at working pressure. Keep pressure for 2 hours, and the weld, flange connection to check no leakage
(9) in the installation of molecular sieve, check whether the partition plate and the shell with a good fit, the gap at the screen turned up. Load alumina, molecular sieve. Finally, the bed should be levelled, and the bed should be levelled to a level of <10mm after the adsorbent has been installed.
(10) adsorbent site storage and filling requirements
(a) When loading and unloading the adsorbent of small air separation unit, the quantity should be counted: and prevent damage to the barrel or bag of the adsorbent, avoid poor sealing or loosening of the barrel lid which may lead to dampness of the adsorbent: pay attention to the loading and unloading of the adsorbent barrel, and stop brutal loading and unloading.
b) Storage of adsorbent on site should be protected from rain, snow and other measures required to be placed on the ground with an overhead, placed on the site with a sloping roof awning, P-grid against rain and water.
c) The filling of the sorbent requires the whole filling process to be carried out on a sunny day is better, to wear soft-soled shoes to enter. If any sorbent is wet, it is strictly forbidden to fill the sorbent.
d) Confirm that the pore plate gap is <1mm before filling
