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US 4,965,920 AGranted
Fluid heated roll apparatus and method
AssigneePhillips Petroleum Company
InventorSanford N. Smith
Life of this patent
Estimating the term…
Abstract
An apparatus and method are provided wherein a cavity defined by a rotating hollow member, such as a draw roll in a fiber processing system, is supplied with a hot fluid so as to heat the exterior surface of the hollow member. The fluid is withdrawn from the cavity and passed through a rotating syphon conduit which is fixedly connected to the hollow member. The temperature of fluid flowing within the syphon conduit is detected by a suitable temperature detector positioned within the syphon conduit so as to indicate a drop in fluid temperature when normal fluid flow to the hollow member cavity is interrupted.
Claims20
An apparatus comprising:
- a hollow member having a cavity defined therein and also having an exterior surface;
- means for supplying a hot fluid to said cavity so as to heat the exterior surface of said hollow member;
- means for withdrawing fluid from said cavity, said withdrawing means including a rotatable conduit means for receiving fluid therethrough which is fixedly connected to said hollow member;
- means for rotating said hollow member, whereby said rotatable conduit means rotates with said hollow member;
- and
- temperature detection means positioned within said rotatable conduit means so as to detect at a temperature detection location within said rotatable conduit means the temperature of fluid flowing therethrough.
3 more elements
An apparatus comprising:
- a hollow member having a cavity therein and also having an exterior surface;
- means for rotating said hollow member;
- means for supplying a hot fluid to said cavity so as to heat the exterior surface of said hollow member;
- means for withdrawing fluid from said cavity, said withdrawing means including a rotatable syphon conduit means, having an inlet and an outlet, which extends from said inlet within said hollow member to said outlet;
- fluid outlet conduit means having a passageway defined therethrough in direct fluid communication with said outlet;
- temperature detection means positioned within said rotatable syphon conduit means so as to detect at a temperature detection location within said rotatable syphon conduit means the temperature of fluid flowing therethrough.
3 more elements
An apparatus comprising:
- a hollow member having a cavity defined therein and also having an exterior surface;
- means for rotating said hollow member;
- means for supplying a hot fluid to said cavity so as to heat the exterior surface of said hollow member, wherein said fluid supplying means includes a supply conduit means which is fixedly connected to said hollow member so as to rotate therewith and which has a supply conduit inlet and also a supply conduit outlet communicating with said cavity;
- means for withdrawing fluid from said cavity, wherein said withdrawing means includes a rotatable syphon conduit means, having a rotatable syphon conduit inlet and a rotatable syphon conduit outlet, fixedly connected to said hollow member so as to rotate therewith and which extends through said supply conduit means from said rotatable syphon conduit inlet within said hollow member and in communication with said cavity to said rotatable syphon conduit outlet, a generally annular passageway being defined between said rotatable syphon conduit means and said supply conduit means which communicates with said supply conduit inlet and said supply conduit outlet and which receives fluid therethrough in a first direction opposite to flow of fluid through said rotatable syphon conduit means in a second direction;
- a stationary fluid outlet conduit means having a passageway defined therethrough in direct communication with said rotatable syphon conduit outlet;
- seal means between said generally annular passageway and said fluid outlet conduit means passageway so as to assist in preventing leakage of fluid from said generally annular passageway to said fluid outlet conduit means passageway;
- and
- temperature detection means positioned within said rotatable syphon conduit means so as to detect at a temperature detection location within said rotatable syphon conduit means the temperature of fluid flowing therethrough.
5 more elements
A method comprising:
- providing a hollow member having a cavity defined therein and also having an exterior surface;
- supplying a hot fluid to said cavity so as to heat the exterior surface of said hollow member;
- withdrawing fluid from said cavity through a rotatable conduit means which is fixedly connected to said hollow member;
- rotating said hollow member, whereby said rotatable conduit means rotates with said hollow member;
- detecting the temperature of fluid at a temperature detection location within said rotatable conduit means.
2 more elements
A method comprising:
- providing a hollow member having a cavity defined therein and also having an exterior surface;
- rotating said hollow member;
- supplying a hot fluid to said cavity so as to heat the exterior surface of said hollow member;
- withdrawing fluid from said cavity through a rotatable syphon conduit means having an inlet and an outlet, said withdrawn fluid flowing through said inlet within said hollow member to said outlet;
- flowing said withdrawn fluid from said outlet to and through a passageway defined within a fluid outlet conduit means in direct fluid communication with said outlet;
- detecting the temperature of said withdrawn fluid at a temperature detection location within said rotatable syphon conduit means.
3 more elements
A method comprising:
- providing a hollow member having a cavity defined therein and also having an exterior surface;
- rotating said hollow member;
- supplying a hot fluid to said cavity so as to heat the exterior surface of said hollow member, said fluid being supplied to said cavity by a supply conduit means which is fixedly connected to said hollow member so as to rotate therewith and which has a supply conduit inlet and also a supply conduit outlet communicating with said cavity;
- withdrawing fluid from said cavity through a rotatable syphon conduit, having a rotatable syphon conduit inlet and a rotatable syphon conduit outlet, fixedly connected to said hollow member so as to rotate therewith and which extends through said supply conduit means from said rotatable syphon conduit inlet within said hollow member and in communication with said cavity to said rotatable syphon conduit outlet, a generally annular passageway being defined between said rotatable syphon conduit means and said supply conduit means which communicates with said supply conduit inlet and said supply conduit outlet and which receives fluid therethrough in a first direction opposite to flow of fluid through said rotatable syphon conduit means in a second direction;
- flowing fluid from said syphon conduit outlet to and through a passageway, in direct communication with said rotatable syphon conduit outlet, which is defined by a stationary fluid outlet conduit means;
- providing a seal means between said generally annular passageway and said fluid outlet conduit means passageway so as to assist in preventing leakage of fluid from said generally annular passageway to said fluid outlet conduit means passageway;
- and
- detecting the temperature of fluid at a temperature detection location within said rotatable syphon conduit means.
5 more elements
Dependencies are inferred from the claim text.