Electric drive fracturing semitrailer with dual engines and dual pumps

Abstract

The invention discloses an electric drive fracturing semitrailer with dual engines and dual pumps. The electric drive fracturing semitrailer with the dual engines and the dual pumps comprises a semitrailer body, two plunger pumps, two radiators and an electrical control cabinet. The electric drive fracturing semitrailer with the dual engines and the dual pumps is characterized by further comprising two electromotorsand an inverter unit. The plunger pumps, the radiators, the electrical control cabinet, the electromotors and the inverter unit are integrated in the semitrailer body, the inverterunit is arranged on the gooseneck of the semitrailer body, the output end of the inverter unit individually drives the two electromotors, the other ends of the two electromotors are connected with theplunger pumps correspondingly, lubricating oil of the plunger pumps is cooled through the radiators, and local operation of the electric drive fracturing semitrailer with the dual engines and the dual pumps is realized through the electrical control cabinet. The electric drive fracturing semitrailer with the dual engine and the dual pump has the beneficial effects that the electromotors are adopted to drive the plunger pumps through a transmission shaft, the volume is small, and the economic efficiency, energy conservation and environment protection are achieved. The signal pump power of theplunder pumps is improved, design that the dual pumps are driven by the two electromotors is adopted by the whole fracturing device, the output power of the fracturing device is greatly improved, andthe using requirements are better met.

Description

technical field [0001] The invention relates to the field of fracturing in oil and gas fields, in particular to an electrically driven fracturing semi-trailer with two machines and two pumps. Background technique [0002] In oil and gas field fracturing sites around the world, the power transmission system used in traditional fracturing equipment is configured in a way that the diesel engine is connected to the gearbox to drive the fracturing plunger pump through the transmission shaft. That is to say, the power source is a diesel engine, and the transmission The device is a gearbox and drive shaft, and the actuator is a fracturing plunger pump. This configuration mode has the following disadvantages: (1), large volume and heavy weight: the diesel engine drives the gearbox to drive the fracturing plunger pump through the transmission shaft, which is large in size, heavy in weight, limited in transportation, and low in power density. (2) Not environmentally friendly: Diesel ...

AI Technical Summary

Problems solved by technology

This configuration mode has the following disadvantages: (1) Large size and heavy weight: the diesel engine drives the transmission shaft to drive the fracturing plunger pump, which is large in size and weight, limited in transportation, and low in power density

(2) Not environmentally friendly: Diesel engine-driven fracturing equipment will generate engine exhaust gas pollution and noise pollution during the operation of the well site. The noise exceeds 105dBA, which seriously affects the normal life of the surrounding residents.

(3) Uneconomical: Diesel engine-driven fracturing equipment has relatively high initial purchase costs, high fuel consumption per unit power during equipment operation, and high daily maintenance costs for engines and gearboxes.

In view of the fact that the global oil and gas development equipment is developing in the direction of "low energy consumption, low noise, and low emission", the above-mentioned shortcomings of traditional fracturing equipment powered by diesel engines hinder the development of unconventional oil and gas energy to a certain extent. development process

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