A method for reliable operation of drilling rig electric control system in low temperature environment

Abstract

The invention puts forward a reliable operation method of a drilling machine electronic control system in the low-temperature environment. A dehumidification and heating device is arranged in a control room of the drilling machine electronic control system; a heater with a temperature control function is added at the position of an air conditioner outdoor unit; an electrically controlled louver type exhaust fan is additionally installed at the upper end of a heat dissipation air outlet of the outdoor unit, a temperature control device is additionally installed at the air conditioner outdoor unit, a temperature control signal has access to a power supply control loop of the louver type exhaust fan, and the temperature control device is in linkage control with the louver type exhaust fan; and a pressure detecting device is additionally installed on an air pressure pipeline connected with the air conditioner outer unit, the measured pressure detection signal has access to a control loop of an outer unit fan, and the pressure detecting device is in linkage control with the outer unit fan. The reliable operation method has the beneficial effects that normal operation of the drilling machine electronic control system is ensured under the low-temperature environment condition, and the materials needed for refitting are easily available and easy to assemble.

Description

technical field [0001] The invention belongs to the technical field of oil drilling, and in particular relates to an electric control system of an oil drilling rig that avoids equipment damage due to low-temperature operation in a low-temperature environment, and can automatically regulate the temperature and humidity of the environment, so that the electric control system can operate reliably A method of control. Background technique [0002] With the development of power electronics technology, more and more electronic circuit components are used in the electronic control system of oil drilling rigs. Due to the high sensitivity of electronic circuit components to temperature changes, when the drilling rig electronic control system is put into use in a low temperature environment, due to The reason of temperature will seriously affect the normal operation of the equipment, especially in the low temperature environment, such as the inverter (below 0°C) cannot start, the air ...

AI Technical Summary

Problems solved by technology

[0002] With the development of power electronics technology, more and more electronic circuit components are used in the electronic control system of oil drilling rigs. Due to the high sensitivity of electronic circuit components to temperature changes, when the drilling rig electronic control system is put into use in a low temperature environment, due to The reason of temperature will seriously affect the normal operation of the equipment, especially in the low temperature environment, such as the inverter (below 0°C) cannot start, the air conditioner (below -10°C) cannot operate, etc., if the electrical components are outside the allowable temperature range Forced operation, the possibility of component damage is high

[0003] The problems that may arise from the ambient temperature are: 1. The internal electrical components of the electronic control system, such as control touch screens, microcircuit boards, power components, IGBTs, etc., are more sensitive to the requirements of ambient temperature and humidity. The device is damaged or does not work, so it is necessary to install temperature and humidity detection devices at important positions

[0004] 2. For the air-conditioning system with electronic control configuration, the lower limit of the normal operating temperature that can be tolerated under normal circumstances is about -10°C. In a low-temperature environment, if it is used directly, it will cause the internal and external units of the air conditioner, especially the control circuit to work abnormally or shut down. , if it is forced to run, it will damage the air-conditioning system, so it is necessary to make technical changes to the air-conditioning system

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