Skillfully modified gas cabinet to achieve a double harvest

Recently, through the implementation of a series of optimization and transformation, the oil and gas storage and transportation workshop of Yan'an Petrochemical Plant not only solved the problems existing in the operation of the gas cabinet system, ensured the safe and stable long-term operation of the gas cabinet system, but also improved production efficiency, reduced carbon emissions, and achieved a double harvest
of energy saving, emission reduction, income and expenditure.

Since October, the water sealing system has been frequently broken during the operation of the gas cabinet system in the workshop, resulting in the unstable operation of the gas cabinet system and the impact
on the downstream sewage treatment system.
In this regard, the workshop technicians carried out technical research
.
They analyzed the components of low-pressure gas on site and found out the cause, and found that because the low-pressure gas contained a certain amount of hydrogen sulfide and ammonia, the two formed ammonium salt crystals to cause the filter element in the filter to be blocked, resulting in frequent water seals being broken, so that the gas cabinet could not effectively recover the low-pressure gas in the venting pipe network
.

The workshop technicians and team leaders brainstormed and proposed solutions, and decided to optimize the gas cabinet, that is, prefabricate a steam line on the top of the filter, lead the steam line to the top flange of the filter tank, and when the ammonium salt crystallization in the filter tank is blocked, it is introduced into the filter tank through the top steam line for purging
.

The filter tank is non-pressurized equipment, the maximum working pressure is 70 kPa, and the steam pressure is 0.
7~0.
9 MPa, which may cause deformation
of the filter tank in the equipment due to excessive steam pressure during purging.
Faced with the problem, the technician set the top as a looper flange, and the lower valve was set with a certain opening, which not only ensured that the impurities after purging were discharged in time, but also ensured that the pressure in the filter tank was normal
.
At the same time, a new line was added to the top prefabricated steam purge line flange and a ring of holes
were drilled around and up and down the line.
After "micro" transformation, the filter element inside the entire filter tank is finally purged, which can effectively decompose the blockage and unclog the filter screen
.