A hydraulic pipeline system online circulation cleaning process

Abstract

The invention discloses an on-line cyclic cleaning process for a hydraulic pipeline system and belongs to pipeline cleaning technologies in the field of hydraulic transmission. The on-line cyclic cleaning process for the hydraulic pipeline system aims at achieving the technical effect that an on-line cyclic cleaning technology for complex, long and large hydraulic pipeline systems is provided so that cleaning quality and efficiency can be improved. According to the technical scheme, the on-line cyclic cleaning process comprises the steps of 1, firstly, switching off a hydraulic power pack, an actuator, a control valve piece and a real valve block assembly; 2, designing a cleaning loop; 3, connecting pipelines different in pipe diameter in sequence from thick to thin; 4, designing a mock-up valve block assembly; 5, connecting the mock-up valve block assembly to to-be-cleaned loops; 6, connecting the to-be-cleaned loops to a cleaning oil source; 7, cleaning each to-be-cleaned loop; and 8, checking whether the cleaning effect is qualified or not, wherein if the cleaning effect is qualified, a valve block assembly is replaced with a clean valve block assembly, the control valve piece and the real valve block assembly are replaced, and the cleaning work is completed; and if the cleaning effect is not qualified, the cleaning process in step 7 is repeated till the cleaning effect is qualified. The on-line cyclic cleaning process is applied to cleaning of hydraulic pipelines.

Description

technical field [0001] The invention relates to an online circulation cleaning process of a hydraulic pipeline system, which belongs to the pipeline cleaning technology in the field of hydraulic transmission, and in particular relates to an online cleaning technology of complex, long and large hydraulic pipelines. Background technique [0002] For complex, long and large hydraulic pipeline systems, the current online circulation cleaning process and process are: disconnect the hydraulic pump station, actuators and control components, etc., and use temporary jumpers to short-circuit the oil ports so that the pipes The circuit is connected into one or several circuits; the short circuit is divided according to the "schematic diagram of the pipeline system", and cleaned separately according to the schematic diagram of the hydraulic system. The disadvantages of this cleaning process are: 1. The online circulation cleaning circuit after short-circuiting includes not only hard pip...

AI Technical Summary

Problems solved by technology

The disadvantages of this cleaning process are: 1. The online circulation cleaning circuit after short-circuiting includes not only the hard pipes and hose pipes to be cleaned, but also the complicated oil circuit in the valve block assembly.

The hole system of the valve block assembly is complicated, and there are many blind holes, right-angle connecting holes, intersecting holes, etc. During the cleaning process, because the oil passages are connected to each other, the flowing oil will bring the excess cleaned out into some hard-to-clean areas. Dead angle; 2. Some dense short holes and small holes in the valve block assembly with many directions and many ends will produce resistance to the cleaning oil, causing pressure loss during cleaning and affecting the quality and efficiency of cleaning; 3. After short-circuiting The pipe diameters of the cleaning circuit are inconsistent. For the inner wall of the pipe with a large difference, it will cause changes in the cleaning pressure and flow rate, making it less than the best cleaning environment.

There are many domestic and foreign studies on online circulation cleaning technology for complex, long and large hydraulic pipeline systems, but there is no corresponding research on the shortcomings mentioned in the background technology

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