Matched pumping system adopting long-distance slurry pipeline online continuous-beating mode and pumping method

Abstract

The invention provides a matched pumping system adopting a long-distance slurry pipeline online continuous-beating mode and a pumping method. The matched pumping system comprises a preceding-stage pump station, a latter-stage pump station and a main pipeline, wherein the preceding-stage pump station and the latter-stage pump station are connected through the main pipeline and respectively comprises at least one delivery pump. A pump inlet pipe and a pump outlet pipe of each delivery pump are directly communicated with the main pipeline, and the preceding-stage pump station and the latter-stage pump station are matched in pumping capacity. The preceding-stage pump station and the latter-stage pump station perform slurry pumping by adopting the online continuous-beating mode, the transportation cost of a whole slurry pipeline pumping system is greatly reduced, meanwhile the match problem of the pumping capacities of the preceding-stage pump station and the latter-stage pump station in the online continuous-beating pumping mode is considered innovatively, accordingly long-term stable running in the online continuous-beating pumping mode is effectively ensured, pipe explosion is completely avoided, and the delivery efficiency of the slurry pipeline is effectively ensured.

Description

technical field [0001] The invention relates to the technical field of long-distance slurry pipeline transportation, and more particularly to a matching pumping system and pumping method in an online continuous mode of long-distance slurry pipelines. Background technique [0002] With the rapid economic growth in my country, especially the sustained and stable development of metallurgy, petrochemical, petroleum, fertilizer and other industries in recent years, with the increase in energy prices, transportation costs have become higher and higher, and the use of hydraulic pipelines to transport solid materials, and other Compared with transportation (such as railways and highways), it has the advantages of short transportation distance, less infrastructure investment, adaptability to terrain and the availability of high potential energy, occupying no or less land, not polluting the environment and not disturbed by external conditions, and can realize continuous operation. , the...

AI Technical Summary

Problems solved by technology

There are multiple pumping stations in the slurry pipeline pumping system of the prior art, and the long-distance continuous transportation of the slurry material is realized through the pressurized pumping of each pumping station. This kind of slurry pipeline transportation system in the prior art is usually Stirring tanks and storage tanks are built in the pumping stations at all levels. The slurry delivered by the previous pump station enters the stirring tank and storage tank first, and then the slurry in the stirring tank and storage tank is pumped by the pumping system of the pumping station at this level. This kind of pumping system can better match the pipeline pumping capacity of pumping stations at all levels, but it has a big defect that the system structure is complex and huge. If it is necessary to build a mixing system, feeding System, storage system and auxiliary supporting equipment, resulting in higher cost of the entire slurry pipeline pumping system, which in turn reduces the overall efficiency of slurry pipeline transportation

In the prior art, in order to avoid the construction of stirring tanks and storage tanks, etc., there are also individual pumping systems that adopt the online continuous pumping mode, that is, the pipelines of the front and rear pumping stations are continuously pumped and transported, but the pumping systems in the prior art Most of them are only suitable for short distances, and do not consider the matching of the pumping capacity of pumping stations at all levels, which often leads to the danger of pipe bursts in the entire delivery pipeline due to the failure of pumping equipment in a pumping station at a certain level, and then Limits the widespread use of online continuous pumping mode

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