| 摘要 |
Disclosed is a vapor generator for generating a supply of a gas bearing vapors of a compound at a desired concentration. Also disclosed is a method for generating a supply of gas bearing vapors of said compound which process utilizes the vapor generator disclosed herein. The supply of gas bearing vapors can be generated on demand at a desired constant delivery pressure. The generator comprises a gas line for conveying pressurized gas from a source thereof through first pressure regulating means to a vessel; said vessel for retaining a reservoir of said compound in its liquid phase and having headspace thereabove, said vessel being insulated and having heating means to maintain said liquid and said headspace at a desired temperature. The gas line extends into the vessel to a position within the reservoir of liquid and there is terminated with gas distributor means. The vessel is provided with a product vaporous outlet from the headspace from which a gas outlet line connects to a second pressure regulator means. The first pressure regulator means independently controls the pressure in the vessel while the second pressure regulator means independently controls the delivery pressure of the gas bearing said vapors. The concentration of vapors in the supply of outlet gas is determined by the vessel pressure and vessel temperature. Advantageously, the generator may be portable and may be used to generate vaporous amine carried by air or an inert gas.
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