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US 10,274,193 B2Granted
Transfer pipe for furnace
AssigneeDoosan Heavy Industries Construction Co., Ltd
InventorMin Suck Sung
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a transfer pipe for a furnace. The transfer pipe for a furnace includes a body portion having an inlet and an outlet through which a fluid is transferred, a guide portion having polygonal sides extending in a spiral form in an inward longitudinal direction of the body portion, and a diameter change portion repeatedly changing an inner diameter of the body portion in the longitudinal direction thereof.
Claims19
A transfer pipe for a furnace, comprising:
- a body portion having an inlet and an outlet through which a fluid is transferred;
- a guide portion having polygonal sides formed on an inner wall of the body portion and extending in a spiral form in a longitudinal direction of the body portion;
- diameter change portions that repeatedly protrude in a longitudinal direction of the transfer pipe from the inner wall of the body portion in a rounded form;
- and
- a branch passage formed on the inner wall of the body portion, wherein the branch passage is inclined with respect to the polygonal sides, so as to intersect with adjacent ones of the polygonal sides,
- wherein the guide portion has an inner peripheral surface which has an N-sided polygonal cross-section in a first section and an (N−1)-sided polygonal cross-section in a second section, wherein N is a positive integer,
- wherein the guide portion comprises a first guide portion extending in the longitudinal direction of the body portion from the inlet and a second guide portion extending upward from the first guide portion, and
- wherein an angle of extension of the first guide portion with respect to a center vertical axis is different from an angle of extension of the second guide portion with respect to the center vertical axis.
5 more elements
A transfer pipe for a furnace, comprising:
- a body portion having an inlet and an outlet through which a fluid is transferred;
- a guide portion formed on an inner wall of the body portion and extending in a spiral form in a longitudinal direction of the body portion, so that the body portion has a polygonal cross-sectional shape;
- wherein the polygonal cross-sectional shape includes polygonal sides and a junction of adjacent ones of the polygonal sides is rounded;
- and
- diameter change portions that repeatedly protrude in a longitudinal direction of the transfer pipe that are disposed on each of the polygonal sides,
- wherein the guide portion has an inner peripheral surface which has an N-sided polygonal cross-section in a first section and an (N−1)-sided polygonal cross-section in a second section, wherein N is a positive integer,
- wherein the guide portion comprises a first guide portion extending in the longitudinal direction of the body portion from the inlet and a second guide portion extending upward from the first guide portion, and
- wherein an angle of extension of an entirety of the first guide portion with respect to a center vertical axis is different from an angle of extension of an entirety of the second guide portion with respect to the center vertical axis.
5 more elements
A transfer pipe for a furnace, comprising:
- a body portion having an inlet and an outlet through which a fluid is transferred, wherein an outer diameter of the body portion is uniform;
- a guide portion having polygonal sides formed on an inner wall of the body portion and extending in a spiral form in a longitudinal direction of the body portion;
- and
- diameter change portions that repeatedly protrude in a longitudinal direction of the transfer pipe from the inner wall of the body portion in a rounded form,
- wherein the guide portion has an inner peripheral surface which has an N-sided polygonal cross-section in a first section and an (N−1)-sided polygonal cross-section in a second section, wherein N is a positive integer,
- wherein the guide portion comprises a first guide portion extending in the longitudinal direction of the body portion from the inlet and a second guide portion extending upward from the first guide portion, and
- wherein an angle of extension of the first guide portion with respect to a center vertical axis is different from an angle of extension of the second guide portion with respect to the center vertical axis.
4 more elements
Dependencies are inferred from the claim text.