VENTILATION DEVICES AND METHODS
First Claim
1. A device for removing volatile chemicals from stored liquid in a liquid-containing tank, comprising:
- a. a housing;
b. an air intake system at least partially within the housing comprising an outside air entry port for allowing outside air to enter the device;
an outside air exit port for allowing the outside air to exit the device; and
wherein the air intake system is configured for moving outside air through the housing from the first outside air entry port to the second outside air exit port along an outside air flow path such that the outside air exits the housing at a desired velocity and in a desired direction; and
,c. a volatile chemical exhaust system also at least partially within the housing comprising a volatile chemical entry port to allow volatile chemicals to enter the device;
a volatile chemical exit port to allow volatile chemicals to exit the device; and
wherein the volatile chemical exhaust system is configured to move volatile chemicals through the housing from the first volatile chemical entry port to the second volatile chemical exit port along a volatile chemical flow path, which is physically isolated from the outside air flow path.
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Accused Products
Abstract
Devices are provided for ventilating and/or removing volatile chemicals from liquid (e.g. water) stored in a liquid-containing storage tank (e.g. water-storage tank). The devices include a first fluid flow path that is physically isolated from a second fluid flow path and a convection device for moving a first fluid along the first fluid flow path toward at a desired destination and for exhausting the first fluid at the desired destination at a desired velocity. Methods are also provided for ventilating and/or removing volatile chemicals from liquid (e.g. water) stored in liquid-containing storage tanks (e.g. water-storage tanks). The methods involve blowing a first fluid through a ventilation device into a liquid-containing storage device at a velocity sufficient to achieve a desired mass transfer rate of volatile chemicals from the liquid in the liquid-containing storage device to air in the headspace and flowing the contaminated air back through the ventilation device.
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Citations
18 Claims
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1. A device for removing volatile chemicals from stored liquid in a liquid-containing tank, comprising:
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a. a housing; b. an air intake system at least partially within the housing comprising an outside air entry port for allowing outside air to enter the device;
an outside air exit port for allowing the outside air to exit the device; and
wherein the air intake system is configured for moving outside air through the housing from the first outside air entry port to the second outside air exit port along an outside air flow path such that the outside air exits the housing at a desired velocity and in a desired direction; and
,c. a volatile chemical exhaust system also at least partially within the housing comprising a volatile chemical entry port to allow volatile chemicals to enter the device;
a volatile chemical exit port to allow volatile chemicals to exit the device; and
wherein the volatile chemical exhaust system is configured to move volatile chemicals through the housing from the first volatile chemical entry port to the second volatile chemical exit port along a volatile chemical flow path, which is physically isolated from the outside air flow path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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- 14. A method for removing volatile chemicals from liquid stored in a liquid-containing tank, comprising blowing outside air through a ventilation device along an outside air flow path and into the liquid-containing tank at a desired velocity and in a desired direction, and removing volatile chemicals from the liquid-containing tank through the ventilation device along a volatile chemical flow path, wherein the outside air flow path and volatile chemical flow path are physically isolated in the ventilation device and wherein the desired direction has a substantial downward vector relative to an air-liquid interface within the liquid-containing tank.
Specification