BOTTOM VALVE FOR PLATE COLUMN Russian patent published in 2010 - IPC F16K15/02 B01D3/16 

FIELD: oil and gas production.

SUBSTANCE: bottom valve (1) for a plate column comprises a port (2) in a plate (10) for steam passage and a valve body (3) matched with an edge (20) of the sluice port. The valve body consists of a pressure plate (4) and guide lugs (5) provided on the edge of said plate and oriented vertically downwards. Said guide lugs are provided with grabs (6) for anchoring the valve body on the port edge. Barring the cone-shaped down-directed cambers (40), if any, the plate edge lays on a plate plane. The external surface of each guide lug has a lift zone (50) perpendicular to the plate plane. A material and shaping of the valve body considering its installation in the sluice port (2) are specified so that installation involves elastic and probably partially plastic deformation of the valve body. Such possible deformation on the mounted valve body can be eliminated by force impact on the pressure plate, thereafter being observed as insignificant residual deformation only. The pressure plate can contain hitches, e.g. in the form of flutes, grooves or apertures to facilitate deformation. There are available a plate column with the plates (10) containing a considerable number of bottom valves (1), and a method for mounting the valve bodies (3) in such bottom column.

EFFECT: simplified mounting and dismounting of the bottom valve.

10 cl, 9 dwg