System and method for cleaning gas injectors

An injector cleaning apparatus comprising a concentric dual flow introducer, a flow-dispersing injector seat, an inner flow control module, and an outer flow control module, wherein:

• the concentric dual flow introducer comprises an inner concentric cleaning fluid flowpath configured to communicate with a central passage of a gas injector, an outer concentric cleaning fluid flowpath configured to communicate with a plurality of peripheral passages of the gas injector, and
• an input-side injector engaging interface comprising a compressible sealing portion and a rigid facing portion, the compressible sealing portion of the input-side injector engaging interface having compressibility sufficient to yield under cleaning fluid surges attributable to initiation and termination of cleaning fluid flow through the injector cleaning apparatus and resiliency sufficient to prevent abutment of the gas injector and the rigid facing portion of the input-side injector engaging interface and maintain an input-side injector floating gap between the gas injector and the rigid facing portion of the input-side injector engaging interface, wherein the concentric dual flow introducer interfaces with a first end of the gas injector at the input-side injector engaging interface;
• and
• the flow-dispersing injector seat comprises an output-side injector engaging interface comprising a compressible sealing portion and a rigid facing portion, the compressible sealing portion of the output-side injector engaging interface having compressibility sufficient to yield under cleaning fluid surges attributable to initiation and termination of cleaning fluid flow through the injector cleaning apparatus and resiliency sufficient to prevent abutment of the gas injector and the rigid facing portion of the output-side injector engaging interface and maintain an output-side injector floating gap between the gas injector and the rigid facing portion of the output-side injector engaging interface and the flow-dispersing injector seat further comprises an inner base ring and an outer base ring, the flow-dispersing injector seat interfacing with a second end of the gas injector at the output-side injector engaging interface;
• the inner flow control module is configured to regulate flow of deionized water and compressed dry air to the inner concentric cleaning fluid flowpath;
• and
• the outer flow control module is configured to regulate flow of deionized water and compressed dry air to the outer concentric cleaning fluid flowpath.