Elevating apparatus, pump carrying-in method, pump pulling-up method
AssigneeEbara Corporation
InventorsShuichiro HONDA, Tetsuji KASATANI, Hayato IKEDA, Mitsutaka IWAMI
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Abstract
An elevating apparatus that can eliminate a need for a permanently installed large hoist is provided. The elevating apparatus is used to elevate and lower a submersible pump in a pump column. The submersible pump is used for delivering liquefied gas. The elevating apparatus includes a cable including multiple split cables and multiple coupling links configured to detachably couple the multiple split cables to each other; and a take-up device coupled to the cable.
Claims20
An elevating apparatus for elevating and lowering a submersible pump in a pump column, the submersible pump being used to deliver liquefied gas, the elevating apparatus comprising:
- a cable including multiple split cables and multiple coupling links configured to detachably couple the multiple split cables to each other;
- and
- a take-up device coupled to the cable.
A method of carrying a submersible pump into a pump column, the submersible pump being used to deliver liquefied gas, the method comprising:
- coupling a cable to the submersible pump, the cable being coupled to a take-up device, the cable including at least one of multiple split cables that have been prepared in advance;
- and
- lowering the submersible pump in the pump column by the take-up device while adding remainder of the multiple split cables one by one to the cable.
A method of pulling up a submersible pump out of a pump column, the submersible pump being used to deliver liquefied gas, the method comprising:
- coupling a cable to the submersible pump, the cable being coupled to a take-up device, the cable including multiple split cables;
- and
- elevating the submersible pump from the pump column by the take-up device while removing the multiple split cables one by one from the cable.
Dependencies are inferred from the claim text.