Dew-point humididier and temperature control for corresponding gas

A technology of humidifier and wet gas, which is applied in the direction of humidity control, control/regulation system, non-electric variable control, etc. It can solve the problems of difficult precise control of humidity and achieve the effect of accurate temperature measurement and thermal efficiency improvement
CN101076910AInactive Publication Date: 2007-11-21张超迥
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
张超迥
Publication Date
2007-11-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method of humidifying gases to 100% relative humidity and a humidifier to carry out such a method are provided to humidify gases for fuel cells and for other applications. The humidification of gases is thermally controlled and thermal energy is managed to provide an efficient system. A pre-humidifier accommodates a wide range of flow rates of dry gas to initially humidify and pre-heat the gas, and a boiler provides steam to mix with the effluent from the pre-humidifier to humidify the gas to saturation. A thermal insulator between the boiler and bulk water and / or prehumidifier enhances the steam generation from the boiler and prevents direct heating of water or gases by heat from the boiler. Above the boiler, bulk water, and prehumidifier, a mixing chamber further functions as a condenser and water separator. The mixing chamber provides a space for mixing gases and steam and separates saturated gases from condensed water. By vapor condensation during the mixing, the gas can be humidified completely to its dew point at given temperature and pressure conditions.
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Description

field of invention

[0001] This invention relates generally to the field of continuous gas flow humidification systems and, more particularly, to methods and systems for humidifying gaseous reactants or other gases used in fuel cells. The invention also relates to the field of temperature control and tracking of humidified gases. Background technique

[0002] The humidifier described in U.S. Patent No. 6,338,472 to Shimazu et al., like others in the field of the invention, is commonly used to humidify process gases that may be supplied to a solid-phase polymer fuel cell (SPFC ) anode or cathode. The process gas includes fuel gas supplied to the anode and oxidizing gas supplied to the cathode. The solid-phase polymer fuel cell generates electricity by an electrochemical reaction in which protons generated by gas supplied to the anode are transferred to the cathode through an electrolyte membrane and react with oxidizing gas supplied to the cathode to generate water. However...

Claims

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