Deaeration apparatus
First Claim
1. A deaeration apparatus for removing gases from liquids, comprising:
- an elongated, vertically extending degas vessel of substantially greater height than lateral dimension, having an interior chamber therein, with an upper end and a lower end, said upper end being configured to define an interior volume for collection and venting of gases removed from liquids flowing through the degas vessel, a horizontally aligned inlet port and a horizontally aligned outlet port at a lower portion of the vessel and in flow communication with the interior chamber, and in vertically and laterally spaced-apart relationship to one another, with the inlet port at a higher elevation than the outlet port, and laterally opposite the outlet port, to allow liquid flow through the interior chamber, a vent port communicating with the upper end of said interior chamber, with said interior chamber having a flow director plate mounted therein, extending laterally across the interior chamber, from side-to-side thereof, and vertically upwardly extending in the chamber from the lower end thereof to an upper end at a height above the inlet port, with a first side of the flow director plate facing the inlet port and a second side of the flow director plate facing the outlet port, to provide a liquid flow path therein comprising (i) a substantially 90 degree turn in liquid flow direction of liquid entering the interior chamber, from a horizontal direction to a vertically upward direction, (ii) a substantially 180 degree change in flow direction over the upper end of the flow director plate, from a vertically upward flow on the first side of the flow director plate to a vertically downward flow on the second side of the flow director plate, and (iii) a a substantially 90 degree turn in flow direction from the vertically downward flow on the second side of the flow director plate disengagement of gases from the liquid;
a vent valve for controlling flow out of the degas vessel through said vent port; and
means for operating said vent valve to maintain a selected liquid level in said interior chamber, comprising means for sensing liquid level in the interior chamber and generating a signal correlative thereto; and
means for adjusting the vent valve in response to said signal, such that the vent valve is selectively openable by said vent valve adjusting means in response to said signal, to vent accumulated gas through the vent port and maintain a controlled liquid level in said chamber.
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Accused Products
Abstract
A deaeration apparatus for removing entrained gases from liquids, comprising a degas vessel, which is baffled to enhance degasification. As gas removed from the liquid collects in an upper part of the degas vessel, the pressure in the vessel increases, lowering the liquid level therein. A sensing mechanism provides a liquid level signal to a controller which opens a valve at a vent port at the upper portion of the degas vessel when a predetermined liquid level is reached, whereby gas is vented from the vessel. The gas venting causes pressure in the degas vessel to decrease, thereby allowing the liquid level to again rise to a selected liquid level at which the level sensing mechanism signal causes the controller to close the vent valve.
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Citations
9 Claims
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1. A deaeration apparatus for removing gases from liquids, comprising:
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an elongated, vertically extending degas vessel of substantially greater height than lateral dimension, having an interior chamber therein, with an upper end and a lower end, said upper end being configured to define an interior volume for collection and venting of gases removed from liquids flowing through the degas vessel, a horizontally aligned inlet port and a horizontally aligned outlet port at a lower portion of the vessel and in flow communication with the interior chamber, and in vertically and laterally spaced-apart relationship to one another, with the inlet port at a higher elevation than the outlet port, and laterally opposite the outlet port, to allow liquid flow through the interior chamber, a vent port communicating with the upper end of said interior chamber, with said interior chamber having a flow director plate mounted therein, extending laterally across the interior chamber, from side-to-side thereof, and vertically upwardly extending in the chamber from the lower end thereof to an upper end at a height above the inlet port, with a first side of the flow director plate facing the inlet port and a second side of the flow director plate facing the outlet port, to provide a liquid flow path therein comprising (i) a substantially 90 degree turn in liquid flow direction of liquid entering the interior chamber, from a horizontal direction to a vertically upward direction, (ii) a substantially 180 degree change in flow direction over the upper end of the flow director plate, from a vertically upward flow on the first side of the flow director plate to a vertically downward flow on the second side of the flow director plate, and (iii) a a substantially 90 degree turn in flow direction from the vertically downward flow on the second side of the flow director plate disengagement of gases from the liquid; a vent valve for controlling flow out of the degas vessel through said vent port; and means for operating said vent valve to maintain a selected liquid level in said interior chamber, comprising means for sensing liquid level in the interior chamber and generating a signal correlative thereto; and
means for adjusting the vent valve in response to said signal, such that the vent valve is selectively openable by said vent valve adjusting means in response to said signal, to vent accumulated gas through the vent port and maintain a controlled liquid level in said chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A deaeration apparatus for removing gases from liquids, comprising:
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an elongated, vertically extending degas vessel of substantially greater height than lateral dimension, having an interior chamber therein, with an upper end and a lower end, said upper end being configured to define an interior volume for collection and venting of gases removed from liquids flowing through the degas vessel, a horizontally aligned inlet port and a horizontally aligned outlet port at a lower portion of the vessel and in flow communication with the interior chamber, and in vertically and laterally spaced-apart relationship to one another, with the inlet port at a high elevation than the outlet port, and laterally opposite the outlet port, to allow liquid flow throught the interior chamber, a vent port communicating with the upper end of said interior chamber, with said interior chamber having a flow director plate mounted therein, extending laterally across the interior chamber, from side-to-side thereof, and vertically upwardly extending in the chamber from the lower end thereof to an upper end at a height above the inlet port, with a first side of the flow director plate facing the inlet port and a second side of the flow director plate facing the outlet port, to provide a liquid flow path therein comprising a substantially 90 degree turn in liquid flow direction of liquid entering the interior chamber, from a horizontal direction to a vertically upward direction, a substantially 180 degree change in flow direction over the upper end of the flow director plate, from a vertically upward flow on the first side of the flow director plate to a vertically downward flow on the second side of the flow director plate, and a substantially 90 degree turn in flow direction from the vertically downward flow on the second side of the flow director plate to a horizontal direction at the outlet port, for disengagement of gases from the liquid; a vent valve for controlling flow out of the degas vessel through said vent port; and means for operating said vent valve to maintain a selected liquid level in said interior chamber, comprising means for sensing liquid level in the interior chamber and generating a signal correlative thereto; and
means for adjusting the vent valve in response to said signal, such that the vent valve is selectively openable by said vent valve adjusting means in response to said signal, to vent accumulated gas through the vent port and maintain a controlled liquid level in said chamber;a hollow fiber membrane device coupled in flow communication relationship with the outlet port of the degas vessel, having an inlet header, an outlet header, an air-tight enclosure therebetween, and an array of parallelly aligned capillary tubes extending between the inlet header and the outlet header in the enclosure and defining an interior volume of the enclosure outside of the capillary tubes therein; and means for imposing a negative pressure on the interior volume of the enclosure to cause dissolved gases in the liquid flowed through the capillary tube to be removed therefrom into said interior volume and from the interior volume out of the enclosure. - View Dependent Claims (9)
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Specification