Pumping and trapping device
AssigneeForbes Marshall Private Limited
InventorsAkshay Suhas Kirloaskar, Milind Mohan Pingale, Sudhir Somnath Alande
Life of this patent
Estimating the term…
Abstract
A pumping and trapping device is provided. The pumping and trapping device removes condensate from a heat exchanger even when upstream pressure in the device is lesser than the downstream pressure. The device includes a float operated mechanical linkage. The float is displaceable with respect to condensate level within a vessel of the device. The mechanical linkage is configured to selectively operate a steam inlet port and a steam outlet port configured on the vessel, thereby removing condensate accumulated within the vessel.
Claims10
A trapping and pumping device (100), said device (100) comprising:
- a vessel (102) having a condensate inlet port (21) in fluid communication with an outlet of a heat exchanger (200) to receive condensate, a condensate outlet port (22) in fluid communication with a condensate discharge pipe (160), a steam inlet port (19) in fluid communication with a steam source, and a steam outlet port (20);
- a support bracket (10) connected to an inner wall of said vessel (102);
- a float (1) disposed within said vessel (102), said float (1) having an extension (2) connected to said float (1);
- a float lever (3) pivotally connected to said support bracket (10) and said extension (2), wherein said extension (2) is configured to be angularly displaced about the pivotal connection between said float lever (3) and said extension (2) at a predetermined angle;
- a connecting link (6) pivotally connected to said float lever (3) proximal said support bracket (10);
- a bell crank lever (7) pivotally connected to said support bracket (10) and said connecting link (6), said bell crank lever (7) configured to be displaced under influence of said connecting link (6);
- a biasing member (9) pivotally connected to said bell crank lever (7), wherein said bell crank lever (7) is configured to compress said biasing member (9) under influence of said connecting link (6) when said float (1) is displaced in an operative upward or downward direction;
- an actuator link (11) pivotally connected to said biasing member (9) and said support bracket (10), said actuator link (11) is configured to be pivotally displaced about the pivotal connection between said actuator link (11) and said support bracket (10) under influence of said biasing member (9) to operate a steam inlet valve (17) and a steam outlet valve (18), thereby controlling steam flow through said steam inlet port (19) and said steam outlet port (20) respectively;
- and
- a trap valve (4) pivotally connected to said extension (2) and configured to be linearly displaced under influence of said float (1) to control flow of condensate through said condensate outlet port (22).
Dependencies are inferred from the claim text.