Method of performing an operation on a vessel assembly, as well as a vessel assembly
AssigneeIv-Consult B.V.
InventorRicky De Jong
Life of this patent
Estimating the term…
Abstract
A method of performing an operation such as a maintenance operation on a vessel assembly, said vessel assembly having a vessel, such as a crystallizing vessel, a rotor, said rotor including an upright, rotatable shaft, said shaft having a top shaft section extending above a top wall of the vessel, to perform maintenance. The top shaft section includes a first member chosen from a male member and a female member for engaging a device. The device has a top end, and a bottom end. The bottom end includes a complementary second member for the first member. According to the method, the device is connected to the top shaft section of the shaft, the rotor is lifted by lifting the shaft at its top end section using the device, following which the operation is performed.
Claims11
A method of performing an operation on a vessel assembly, said vessel assembly comprising
- a vessel, said vessel comprising a top wall, a bottom wall and an upright wall extending from the bottom wall to the top wall, said top wall, bottom wall and upright wall defining a lumen,
- a superstructure on top of the vessel, said superstructure comprising
- a bearing, said bearing comprising an upper race member, a lower race member and roller bodies between said upper race member and said lower race member, said lower race member being attached to the superstructure, and
- a locking nut for locking the bearing, said locking nut comprising an inner thread,
- a rotor, said rotor comprising
- an upright, rotatable shaft, said shaft comprising i) a top shaft section extending above the top wall and ii) a bottom shaft section in said lumen,
- said top shaft section being provided with said upper race member, allowing the rotor to rotate along a shaft axis of the upright, rotatable shaft in line with the axis of rotation of the bearing, and
- said top shaft section comprising an outer thread for engaging the inner thread of the locking nut to lock the upper race member at a desired location on the top shaft section;
- and
- a plurality of rotor elements attached to said bottom shaft section;
- wherein the rotor is stopped and the operation is performed;
- characterized in that
- the top shaft section comprises at a location above the upper race member a first member chosen from a male member and a female member for engaging a device, said device having
- a top end, and
- a bottom end, said bottom end comprising a complementary second member for engaging the top shaft section, said complementary second member being chosen from a female member and a male member;
- wherein
- the device is connected to the top shaft section of the shaft,
- the rotor is lifted by lifting the shaft at its top end section using the device, and
- the locking nut is rotated upwardly along the top shaft section of the rotor, following which the operation is performed.
A vessel assembly, said vessel assembly comprising
- a vessel, said vessel comprising a top wall, a bottom wall and an upright wall extending from the bottom wall to the top wall, said top wall, bottom wall and upright wall defining a lumen,
- a superstructure on top of the vessel, said superstructure comprising
- a bearing, said bearing comprising an upper race member, a lower race member and roller bodies between said upper race member and said lower race member, said lower race member being attached to the superstructure, and
- a locking nut for locking the bearing, said locking nut comprising an inner thread,
- a rotor, said rotor comprising
- an upright, rotatable shaft, said shaft comprising i) a top shaft section extending above the top wall and ii) a bottom shaft section in said lumen,
- said top shaft section being provided with said upper race member, allowing the rotor to rotate along a shaft axis of the upright, rotatable shaft in line with the axis of rotation of the bearing, and
- said top shaft section comprising an outer thread for engaging the inner thread of the locking nut to lock the upper race member at a desired location on the top shaft section;
- and
- a plurality of rotor elements attached to said bottom shaft section;
- characterized in that the rotor comprises an element located below the lower race member, wherein the element is a tapered body tapering away from the top end of the top shaft section, said tapered body having a central axis coinciding with the central axis of the shaft, and the vessel comprises a seat for receiving said tapered body, said seat having a central through-opening for the rotatable shaft.
Dependencies are inferred from the claim text.