Lubrication system for power end of high-power electrically-driven fracturing sled

Abstract

The invention discloses a lubrication system for a power end of a high-power electrically-driven fracturing sled. The lubrication system mainly consists of an oil tank, an overflow valve, a suction assembly, an electromagnetic valve, a filter, a check valve, a temperature control valve, a safety valve, a heat radiator, a fracturing pump and the like. Multi-path parallel connection on lubricating oil can be carried out, so that a whole working procedure is synchronously completed, and the problems that the structural design of conventional single-machine single-pump is not reasonable as well asmodel selection and assembly of systematical elements are difficult under high-power working conditions can be solved; and by also utilizing overflow and heating, a heating effect under low-temperature working conditions is improved. The lubrication system for the power end disclosed by the invention has the advantages that the pressure, the discharge capacity and the temperature of the lubricating oil under the various working conditions can be effectively controlled, and the self reliability and the lubrication effect are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of oilfield fracturing operation equipment, and in particular relates to a lubricating system for the power end of a high-power electric-driven fracturing skid. Background technique [0002] Large-scale electric drive fracturing equipment can effectively solve environmental problems such as high operating cost, high fire risk, on-site noise and emission pollution of current diesel-powered fracturing equipment. Advantages of speed and ease of automation. It can meet the needs of high-intensity operations, improve the support capability of fracturing equipment, and realize the improvement of quality, speed, efficiency and cost reduction of fracturing operations. [0003] The fracturing pump is the core working part of the electric-driven fracturing skid. When working, it converts the mechanical energy input by the drive shaft into hydraulic energy with a large displacement and high pressure of fracturing flui...

AI Technical Summary

Problems solved by technology

[0004] As the power of the fracturing sled continues to increase, the amount of lubricating oil displacement and heat dissipation required for the power end of the fracturing pump also increases rapidly. The single oil circuit lubrication system that still uses a single oil tank for oil storage and a single pump for oil suction will cause its weight The size and size of the fracturing skid will also continue to increase, which will have a greater impact on the overall size and overall layout of the fracturing skid, which is not conducive to the disassembly, maintenance and safe transportation of the whole machine; a larger lubricating oil displacement needs to be matched with a larger specification Hydraulic components not only bring great troubles to the selection of system components, but also make it difficult to connect pipelines

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