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Electric Control System of AC Drilling Rig with Recoverable Energy

An electronic control system and drilling rig technology, applied in the drilling automatic control system, drilling equipment, earthwork drilling, etc., can solve the problem of energy waste in the drilling rig drive system, improve output power characteristics, reduce drilling costs, and stabilize energy demand Effect

Active Publication Date: 2016-08-17
BAOJI PETROLEUM MASCH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electric control system of an AC drilling rig with recyclable energy, so as to solve the problem of serious energy waste in the current drilling rig driving system

Method used

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  • Electric Control System of AC Drilling Rig with Recoverable Energy

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] refer to figure 1 , the structure of the electric control system of the AC drilling rig with recoverable energy in the present invention is to include a power electric part and a control part,

[0017] The structure of the power part is (the solid line connection part), including the AC busbar 8, the input end of the AC busbar 8 is connected to the generator set 1 3 through the generator set grid-connected cabinet 1 2, and the embodiment also includes the generator set 2 4 through the power generation Unit grid-connected cabinet 2 5 is connected to AC busbar 8, generator set 3 6 is connected to AC busbar 8 through generator set grid-connected cabinet 3 7;

[0018] The output end of the AC busbar 8 is connected to the reversible frequency converter 10 through the transformer 9, and the reversible frequency converter 10 is connected to ...

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Abstract

The invention relates to an electronic control system for an energy-recyclable alternating-current drilling machine. The electronic control system comprises a dynamic electricity portion and a control portion. The dynamic electricity portion is structurally characterized in that an alternating-current busbar is connected with generator sets through generator set grid connection cabinets; the output end of the alternating-current busbar is connected with an automatic bit feeding motor through a transformer and a first reversible frequency converter; the alternating-current busbar is further connected with a direct-current busbar through second reversible frequency converters; the direct-current busbar is connected with corresponding motors through drivers; the direct-current bus is further connected with an energy accumulator and a second circuit break controller. The control portion is structurally characterized by comprising a drilling machine drive control mechanism and an energy recycling control mechanism, the drilling machine drive control mechanism is in signal connection with each of the first reversible frequency converter, the drivers and the second reversible frequency converters, and one end of the energy recycling control mechanism is connected with the generator set grid connection cabinets while the other end of the same is connected with the energy accumulator and the second circuit break controller. The system realizes recycling and utilization of energy.

Description

technical field [0001] The invention belongs to the technical field of electric drive and power electronics, and relates to an electric control system of an AC drilling rig with recyclable energy. Background technique [0002] As the main equipment for the exploration and development of deep formation energy such as oil, natural gas, and geothermal energy, the drilling rig will repeatedly lift and lower the drilling tools during the working process. During the lifting process, the drilling rig must do work to lift hundreds of tons of drilling tools by nearly 30 meters , the descending process releases the mechanical energy transformed by the lifting. [0003] At present, the AC drilling rig mainly realizes the slow release of energy through the following two methods: 1) braking by braking, directly converting mechanical energy into heat energy; 2) converting mechanical energy into electrical energy through a frequency converter, and then converting the electrical energy into...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B44/00
Inventor 梁春平栾苏于兴军宋志刚郭军光
Owner BAOJI PETROLEUM MASCH CO LTD
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