【正文】 3 of the drawings, it will be seen that the bottom of the heat exchanger tube bundle receiving reservoir enclosure 16 is flat with at least one drive roller assembly 40 and a guide roller assembly 41 mounted thereon. The configuration shown prises a setup for two heat exchanger bundles. Drive roller assembly 40 includes variable speed hydraulic motors 40C mounted on end wall 19 turning a sprocket and chain assembly 40D for turning drive roller assembly 40. The variable speed hydraulic motors 40C allow continuous turning of the rollers or a jog feature that rotates a predetermined amount and then stops to allow cleaning while the bundle is stopped. The motors also provide additional torque over prior art systems. Each of said respective guide roller assemblies 41 can be adjusted transversely within said tube bundle support area TSA by moving within respective guide channels 42 towards and away from the elongated raised center portion 38 best seen in FIGS. 2 and 3 of the drawings. It is noted that prior art systems required the guide roller assemblies to be individually bolted in position. In the present configuration, the roller assemblies 41 are slid into position and then clamped into place with a quick connect release mechanism such as pull pins 44A, thus significantly reducing set up time for different sized bundles. [0026] Each of the longitudinally spaced guide channels 42 extend between sidewall angles 39A and the raised center section 38 so that each of the guide roller assemblies 41 can be moved towards the respective drive roller assembly as seen in broken lines in FIG. 4. Each of the respective drive and guide roller assemblies 40 and 41 include keyed main support shafts 40A and 40B extending through multiple bearing elements 40B and 41B. 外文文獻翻譯 技術領域 ： 本發(fā)明涉及清洗換熱器管束 的 方法系統(tǒng)，尤其是提供一個安全，經(jīng)濟，環(huán)保的 用清潔劑來清洗在安裝 工地和再 安裝工地 換熱器管束 的方法 ， 像那樣 長 距離傳遞 的清潔解決方案是 不必要的 。 [0011] FIG. 4 is a graphic perspective schematic illustration of the cleaning fluid flow path and associated pumping and filtering apparatus and spray nozzles within the invention。 a means for heating the cleaning fluid in the supply reservoir prior to recirculating through the pump and filter assembly。 a plurality of drive roller assemblies and guide roller assemblies positioned in the tube bundle receiving reservoir enclosure to receive the heat exchanger tube bundles。 purging oxygen from at least one of the enclosure, the cleaning fluid reservoir, and a control panels by filling at least one of the enclosure, the reservoir, and the control panels with nitrogen。附錄一 This application is a continuation of PCT International Application Number PCT/IB2021/051909 filed Jun. 9, 2021, which claims the benefit of . Provisional Patent Application Ser. No. 60/656,430, filed Feb. 24, 2021, both applications hereby incorporated by reference. TECHNICAL FIELD ： The present invention relates to a method and system for cleaning heat exchanger tube bundles and, more particularly, to a