System and method for detecting gas
View Patent ↗A system to detect a presence of a specific gas in a mixture of gaseous byproducts comprising moisture vapor is disclosed. The system includes an electrochemical cell, a transport to deliver the mixture of gaseous byproducts from the electrochemical cell, a gas sensor in fluid communication with the transport, the sensor responsive to a presence of the specific gas to generate a signal corresponding to a concentration of the specific gas, and a membrane to prevent transmission of liquid moisture, the membrane disposed between the transport and the gas sensor.
1. A system to detect a presence of a specific gas in a mixture of gaseous byproducts comprising moisture vapor, the system comprising:
an electrochemical cell;
a transport to deliver the mixture of gaseous byproducts from the electrochemical cell;
a gas sensor in fluid communication with the transport, the sensor responsive to a presence of the specific gas to generate a signal corresponding to a concentration of the specific gas;
a membrane to prevent transmission of liquid moisture, the membrane disposed between the transport and the gas sensor;
wherein the electro chemical cell is an electrolysis cell;
the system further comprises a holding tank comprising process water utilized by the electrolysis cell;
a first end of the transport is in fluid communication with the electrolysis cell; and
a second end of the transport is disposed beneath a surface of the process water to bubble the gaseous byproducts through the process water.
2. The system of claim 1 , wherein:
the membrane regulates a flow of the mixture of gaseous byproducts relative to the sensor.
3. The system of claim 1 , wherein:
the membrane is a hydrophobic gas permeable membrane.
4. The system of claim 3 , wherein:
the membrane comprises thermo-mechanically expanded polytetrafluoroethylene. material.
5. The system of claim 1 , wherein:
the membrane is disposed between the holding tank and the gas sensor.
6. The system of claim 1 , further comprising:
a heater disposed proximate the sensor to prevent condensation of moisture vapor upon the gas sensor.
7. The system of claim 6 , further comprising:
a temperature sensor disposed between the transport and the gas sensor, the temperature sensor responsive to generate a signal corresponding to a temperature associated with the moisture vapor.
8. The system of claim 7 , wherein:
the temperature sensor is disposed at least one of:
beneath the surface of the process water; and
upon the gas sensor.
9. The system of claim 7 , wherein:
the heater is responsive to the signal to maintain a temperature of the gas sensor greater than the temperature associated with the moisture vapor.
10. A system to detect a presence of a specific gas in a mixture of gaseous byproducts comprising moisture vapor comprising:
an electrochemical cell;
a transport to deliver the mixture of gaseous byproducts from the electrochemical cell;
a gas sensor in fluid communication with the transport, the sensor responsive to a presence of the specific gas to generate a signal corresponding to a concentration of the specific gas;
a membrane to prevent transmission of liquid moisture, the membrane disposed between the transport and the gas sensor; and,
wherein the gas sensor is separated from the membrane by a gap less than approximately 6.3 millimeters (mm).
11. An electrochemical cell system comprising:
an electro chemical cell; and
a gas detection system comprising:
a transport to deliver a mixture of gaseous byproducts from the electrochemical cell;
a gas sensor in fluid communication with the transport, the sensor responsive to a presence of a specific gas to generate a signal corresponding to a concentration of the specific gas; and
a membrane to prevent transmission of liquid moisture, the membrane disposed between the transport and the gas sensor;
wherein the electro chemical cell is an electrolysis cell;
the system further comprises a holding tank comprising process water utilized by the electrolysis cell;
a first end of the transport is in fluid communication with the electrolysis cell; and
a second end of the transport is disposed beneath a surface of the process water to bubble the gaseous byproducts through the process water.
12. The system of claim 11 , wherein:
the membrane is a hydrophobic gas permeable membrane.
13. The system of claim 11 , further comprising:
a heater disposed proximate the sensor to prevent condensation of moisture vapor upon the gas sensor.
14. An electrochemical cell system comprising:
an electro chemical cell; and
a gas detection system comprising:
a transport to deliver a mixture of gaseous byproducts from the electrochemical cell;
a gas sensor in fluid communication with the transport, the sensor responsive to a presence of a specific gas to generate a signal corresponding to a concentration of the specific gas; and
a membrane to prevent transmission of liquid moisture, the membrane disposed between the transport and the gas sensor;
wherein the gas sensor is separated from the membrane by a gap less than approximately 6.3 millimeters (mm).