Pump installation apparatus, pump installation method, and pump removing method
OwnerShuichiro HONDA, Tetsuji KASATANI +4inventors
InventorsShuichiro HONDA, Tetsuji KASATANI, Kei WATAJI, Mitsutaka IWAMI, Hyuga KIKUCHI, Asaki SUZUKI
Life of this patent
Estimating the term…
Abstract
The pump installation apparatus includes a working chamber forming a closed working space, an actuator-driven door covering an upper opening of a pump column, a suspension cable for suspending a submersible pump in the pump column, a power cable for supplying electric power to the submersible pump, and a crane for raising and lowering the suspension cable and the power cable. The upper opening of the pump column, the actuator-driven door, and the crane are located in the working space.
Claims13
A pump installation apparatus for installing a submersible pump in a pump column and removing the submersible pump from the pump column, the submersible pump being used to deliver liquefied gas, the pump installation apparatus comprising:
- a working chamber forming an enclosed working space therein;
- an actuator-driven door covering an upper opening of the pump column;
- a suspension cable configured to suspend the submersible pump in the pump column;
- a power cable configured to supply electric power to the submersible pump;
- and
- a crane configured to raise and lower the suspension cable and the power cable,
- an upper opening of the pump column, the actuator-driven door, and the crane being located in the working space,
- wherein the suspension cable includes a plurality of split suspension cables and a plurality of coupling links configured to couple the plurality of split suspension cables,
- the power cable includes a plurality of split power cables and a plurality of electric connectors configured to electrically couple the plurality of split power cables,
- the plurality of electric connectors are attached to the plurality of coupling links, respectively, and
- the pump installation apparatus further comprises a link operating device configured to operate the plurality of coupling links to cause the plurality of coupling links to couple and separate the plurality of split suspension cables and couple and separate the plurality of split power cables.
(canceled)
The pump installation apparatus according to claim 12, wherein each of the plurality of coupling links includes a first link mechanism coupled to a lower end of each split suspension cable, a second link mechanism coupled to an upper end of each split suspension cable, and a coupling pin configured to couple and separate the first link mechanism and the second link mechanism, and
- the link operating device is configured to move the coupling pin to couple and separate the first link mechanism and the second link mechanism.
A method of installing a submersible pump in a pump column, the submersible pump being used to deliver liquefied gas, the method comprising:
- opening an actuator-driven door disposed within an enclosed working space formed by a working chamber, the actuator-driven door being coupled to an upper portion of the pump column;
- coupling a suspension cable and a power cable to the submersible pump within the working space;
- and
- lowering the suspension cable, the power cable, and the submersible pump in the pump column by a crane disposed in the working space,
- an upper opening of the pump column being located in the working space,
- wherein the suspension cable includes a plurality of split suspension cables and a plurality of coupling links configured to couple the plurality of split suspension cables,
- the power cable includes a plurality of split power cables and a plurality of electric connectors configured to electrically couple the plurality of split power cables,
- the plurality of electric connectors are attached to the plurality of coupling links, respectively, and
- lowering the suspension cable, the power cable, and the submersible pump in the pump column comprises lowering the plurality of split suspension cables, the plurality of split power cables, and the submersible pump in the pump column by the crane while operating the coupling links by a link operating device to couple the plurality of split suspension cables one by one and to couple the plurality of split power cables one by one.
(canceled)
A method of removing a submersible pump from a pump column, the submersible pump being used to deliver liquefied gas, the method comprising:
- opening an actuator-driven door located in an enclosed working space formed by a working chamber, the actuator-driven door being coupled to an upper portion of the pump column;
- raising a suspension cable, a power cable, and the submersible pump in the pump column by pulling up the suspension cable and the power cable coupled to the submersible pump with a crane, the crane being disposed in the working space;
- separating the suspension cable and the power cable from the submersible pump;
- and
- raising the submersible pump from the pump column into the working space by the crane, an upper opening of the pump column being located in the working space,
- wherein the suspension cable includes a plurality of split suspension cables and a plurality of coupling links configured to couple the plurality of split suspension cables,
- the power cable includes a plurality of split power cables and a plurality of electric connectors configured to electrically couple the plurality of split power cables,
- the plurality of electric connectors are attached to the plurality of coupling links, respectively, and
- raising the suspension cable, the power cable, and the submersible pump in the pump column comprises raising the plurality of split suspension cables, the plurality of split power cables, and the submersible pump in the pump column by the crane while operating the plurality of coupling links with a link operating device to separate the plurality of split suspension cables one by one and to separate the plurality of split power cables one by one.
(canceled)
Dependencies are inferred from the claim text.