초록 ▼

A floating offshore platform configuration is provided, which decouples pitch, roll, and heave motions from acting on tensioned risers and accommodates the angular displacement induced by floating offshore platform surge and/or sway excursion without inducing bending in the riser at its entrance to

A floating offshore platform configuration is provided, which decouples pitch, roll, and heave motions from acting on tensioned risers and accommodates the angular displacement induced by floating offshore platform surge and/or sway excursion without inducing bending in the riser at its entrance to the floating offshore platform. The risers are guided by an inner structure that is tethered from the sea floor and centered inside an outer hull structure. Outer hull structure heave, pitch and roll motions are substantially isolated from acting on the inner structure through a connection mechanism, and each riser is allowed to individually expand or contract.

대표청구항 ▼

A floating offshore platform configuration is provided, which decouples pitch, roll, and heave motions from acting on tensioned risers and accommodates the angular displacement induced by floating offshore platform surge and/or sway excursion without inducing bending in the riser at its entrance to

A floating offshore platform configuration is provided, which decouples pitch, roll, and heave motions from acting on tensioned risers and accommodates the angular displacement induced by floating offshore platform surge and/or sway excursion without inducing bending in the riser at its entrance to the floating offshore platform. The risers are guided by an inner structure that is tethered from the sea floor and centered inside an outer hull structure. Outer hull structure heave, pitch and roll motions are substantially isolated from acting on the inner structure through a connection mechanism, and each riser is allowed to individually expand or contract. he container body, the hollow interior narrows at the top and receives a solvent outlet tube that extends out of the pencil head holder, a connect opening with an engage groove is formed on the hollow interior of the pencil head holder adjacent to the female threads; c) a removable brush rod having a hollow brush rod head on a first end, a plurality of solvent guide holes bored on an outer circumference adjacent to the hollow brush rod head, and brush hair on a second end, the hollow brush rod head has a projecting rim around a circumferential edge, the hollow brush rod head being inserted into the hollow cavity of the pencil head holder and frictionally secured by the connection between the projecting rim of the hollow brush rod and the engage groove of the connect opening of the pencil head holder; d) at top cover having a sealing device to seal the solvent outlet tube and a connecting device for slidably connecting the top cover to the pencil head holder, the connecting device prevents the top cover from turning easily relative to the pencil head holder, wherein the solvent outlet tube and the pencil head holder are integrally made; and, wherein the connecting device includes an intermediate circumference portion of the pencil head holder with toothed rings and the top cover has engaging teeth on an inner edge wall that match and engage the toothed rings on the pencil head holder.