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US 8,707,760 B2Granted
Gas collection and analysis system with front-end and back-end pre-concentrators and moisture removal
AssigneeTricornTech Corporation
InventorsTsung-Kuan A. Chou, Li-Peng Wang, Chia-Jung Lu, Shih-Chi Chu, Chien-Lin Huang
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Abstract
Embodiments of a front-end pre-concentrator module, a back-end pre-concentrator module and a gas analysis subsystem are disclosed, as well as gas analysis systems using combinations of the front-end pre-concentrator module, the back-end pre-concentrator module and the gas analysis subsystem. Embodiments of disposable and re-usable moisture removal filters are disclosed for use alone or in combination with a gas analysis system.
Claims53
An apparatus comprising:
- a pre-concentrator module comprising:
- a first three-way valve having first, second and third ports, the first port coupled to the outlet of a filter,
- a trap coupled to the second port of the first three way valve,
- a pre-concentrator having an inlet coupled to the third port of the first three-way valve,
- a second three-way valve having first, second and third ports, the first port coupled to an outlet of the pre-concentrator,
- a switch valve coupled to the second port of the second three-way valve, and
- a pump coupled to the switch valve.
4 more elements
A process comprising:
- providing a pre-concentrator module including:
- a first three-way valve having first, second and third ports, the first port coupled to the outlet of the filter,
- a trap coupled to the second port of the first three way valve,
- a pre-concentrator having an inlet coupled to the third port of the first three-way valve,
- a second three-way valve having first, second and third ports, the first port coupled to an outlet of the pre-concentrator,
- a switch valve coupled to the second port of the second three-way valve, and
- a pump coupled to the switch valve;
- and
- configuring the first and second three-way valves to form a flow path to receive a gas sample through the first port of the first three-way valve and concentrate chemicals or volatile organic compounds carried by the gas in the pre-concentrator.
6 more elements
A disposable filter comprising:
- a filter assembly having an inlet and an outlet and comprising:
- a dry filter, and
- a moisture filter coupled to the dry filter, the moisture filter including a compartment having therein a salt compound with a high affinity for water;
- a mouthpiece coupled to the inlet;
- and
- a gas analysis system coupled to the outlet.
3 more elements
An apparatus comprising:
- a moisture filter having an inlet and an outlet, the moisture filter including a compartment having therein a salt compound with a high affinity for water;
- a first three-way valve having first, second and third ports, the third port being coupled to the inlet of the moisture filter;
- a humid gas inlet coupled to the first port of the three-way valve;
- and
- a dry air inlet coupled to the second port of the three-way valve.
2 more elements
A process comprising:
- providing a moisture-removal module comprising:
- a moisture filter having an inlet and an outlet, the moisture filter including a compartment having therein a salt compound with a high affinity for water,
- a first three-way valve having first, second and third ports, the third port being coupled to the inlet of the moisture filter,
- a humid gas inlet coupled to the first port of the three-way valve, and
- a dry air inlet coupled to the second port of the three-way valve;
- and
- configuring the first three-way to create a flow path through which humid gas enters through the humid air inlet, has water removed in the compartment, and exits to a gas analysis system.
4 more elements
An apparatus comprising:
- a pre-concentrator module comprising:
- a first three-way valve having first, second and third ports, the first port coupled to the outlet of a filter,
- a trap coupled to the second port of the first three way valve,
- a pre-concentrator having an inlet coupled to the third port of the first three-way valve,
- a second three-way valve coupled to the outlet of the pre-concentrator and a third Y-splitter coupled to the second three-way valve,
- a third three-way valve coupled to the second three-way valve, and
- a pump coupled to the third three-way valve.
4 more elements
Dependencies are inferred from the claim text.