US 6,251,167 B1 · Machine and process for removing dissolved gasses from liquids

Abstract

An enclosed tank with a liquid inlet, a liquid outlet, a gas inlet, and a gas outlet. A liquid is forced to flow turbulently through the tank. Simultaneously a scrubbing gas is pumped through the tank. Turbulence induced in the liquid encourages gasses dissolved in the liquid to transfer to the scrubbing gas and thence to exit the gas outlet. Liquid pressure is provided externally to the invention, such as by a water utility or house water pump. The liquid inlet has a nozzle that injects the liquid against baffles in the tank to create turbulence. The liquid level in the tank is stabilized by controlling the scrubbing gas pressure. A lower layer of liquid and an upper layer of scrubbing gas are maintained in the tank as they flow through the tank together. Various liquid level stabilizing means are shown as examples. An electronic feedback system optionally controls the scrubbing gas flow rate according to the contamination level of the liquid.

Claims8

Dependent claims

A process for removing dissolved gasses from a liquid, comprising the steps of:

providing a hollow tank with a liquid inlet, a liquid outlet, a gas inlet, a gas outlet, and a desired liquid level in the tank;
connecting a source of liquid to the liquid inlet, the liquid having a given pressure;
providing a constant flow of gas to the gas inlet, the gas having a pressure higher than said given pressure;
providing a variable gas flow valve on the gas outlet that continuously releases gas from the tank in inverse proportion to the liquid level in the tank;
and,
stabilizing the liquid level in the tank around the desired liquid level by variably venting gas from the tank via the gas flow valve in inverse proportion to the liquid level in the tank, without controlling a liquid pump;
whereby the process continuously removes dissolved gasses from a liquid without the need to control a liquid pump, whether the liquid is drawn continuously or intermittently for use from the tank.

4 more elements

A machine for removing dissolved gasses from liquids, comprising:

a tank with a liquid inlet, a desired liquid level in the tank, a gas inlet, and a gas outlet;
a spray nozzle on the liquid inlet for injecting a liquid turbulently into the tank;
a continuous gas pump connected to the gas inlet for continuously pumping a scrubbing gas into and through the tank;
at least one gas outlet on the tank for venting the scrubbing gas from the tank;
and,
continuous stabilization means for maintaining the desired liquid level in the tank without controlling a liquid pump;
whereby the machine can be attached to plumbing without electrical connections to a liquid pump, and provides continuous effective removal of dissolved gasses from a liquid supply, whether the liquid is drawn continuously or intermittently.

4 more elements

Dependencies are inferred from the claim text.

Machine and process for removing dissolved gasses from liquids

Life of this patent

Machine and process for removing dissolved gasses from liquids

Life of this patent

Abstract

Claims8