Multi-pump hydraulic station control system and method with self-protection function

A technology of control system and hydraulic station, applied in the direction of fluid pressure actuated system components, comprehensive factory control, comprehensive factory control, etc., can solve problems such as unreasonable distribution of working time between main motor and backup motor, system state imbalance, etc., to achieve expansion and easy maintenance, improved service life and high reliability

Active Publication Date: 2014-07-30
BAOJI PETROLEUM MASCH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-pump hydraulic station control system with self-protection, which solves the problem in the prior art that the working time distribution of the main motor and the backup motor is unreasonable, resulting in a serious imbalance in the system state

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  • Multi-pump hydraulic station control system and method with self-protection function
  • Multi-pump hydraulic station control system and method with self-protection function
  • Multi-pump hydraulic station control system and method with self-protection function

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] In the hydraulic station control system of the present invention, in order to avoid grid voltage fluctuations caused by motor startup, a soft starter 1 is introduced in the structure of the present invention; in order to realize automatic control of the hydraulic station, a PLC control system 8 is also introduced in the structure; by constructing the PLC control system 8 Realize the separate control and conversion of automatic mode and manual mode, which improves the automatic control level of the hydraulic station. Still works reliably.

[0034] see figure 1 The structure of the embodiment of the hydraulic station control system of the present invention is to include a soft starter 1, one end of the soft starter 1 is connected to the power line through the circuit breaker QF2 (nodes are L11, L21, L31 respectively), and the power line...

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Abstract

The invention discloses a multi-pump hydraulic station control system with a self-protection function. The multi-pump hydraulic station control system comprises a soft starter. One end of the soft starter is connected with a power line which is connected with a power supply, and the other end of the soft starter is connected with a first pump, a second pump and a third pump correspondingly. The power line is sequentially connected with the first pump, the second pump and the third pump through a breaker, an alternating-current contactor and a thermal relay respectively. The power line is further connected with an oiling pump, a heater and a cooler and further connected with a PLC control system through a breaker. The invention further discloses a multi-pump hydraulic station control method with the self-protection function. By means of the multi-pump hydraulic station control system and method with the self-protection function, working time of a main working motor and a standby motor is automatically distributed, the service life is prolonged, work efficiency is improved, and safety and stability are ensured.

Description

technical field [0001] The invention belongs to the technical field of hydraulic control in the petroleum industry, and relates to a control system for a multi-pump hydraulic station with self-protection, and also relates to a control method for a multi-pump hydraulic station with self-protection. Background technique [0002] In the petroleum industry, the application of hydraulic systems abounds, ranging from small drilling tools to large hydraulic drilling rigs, all of which use the pressure energy of the liquid to transmit energy, and the power source of the hydraulic system is the hydraulic station, which has a transmission Stable, small output fluctuation, high reliability and other advantages, widely used. [0003] The traditional hydraulic station control system uses the motor to start directly, which has a great impact on the power supply system. Once the system is started, it will work for a long time, and the working motor and plunger pump will be severely worn, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418F15B21/00
CPCY02P90/02
Inventor 张鹏飞于兴军杨双业张彦伟
Owner BAOJI PETROLEUM MASCH CO LTD
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