Electric control safety system for slurry pump

Abstract

The invention relates to a safety device for monitoring mud pump pressure during oil drilling. An electric control safety system for a mud pump, including a pressure sensor, an embedded integrated touch screen industrial computer and a PLC, a normally closed pneumatic stop valve, the pressure sensor is installed on the high-pressure mud outlet pipeline of the mud pump, and the output signal of the pressure sensor is connected to the PLC. Input signal acquisition port, PLC and embedded integrated touch screen industrial computer communication connection, PLC has an output port to control the electromagnetic reversing valve connected to the normally closed pneumatic globe valve, and the two outlets of the electromagnetic reversing valve are respectively connected to the normal through the pipeline. Both ends of the closed pneumatic shut-off valve work on the cylinder, and the normally closed pneumatic shut-off valve is installed on the return or bypass pipeline connected to the high-pressure mud outlet pipeline of the mud pump. The invention can accurately and reliably monitor the pump pressure of the mud pump on-line, and when the pump pressure of the mud pump reaches the limit value, it will give an alarm in time and stop the pump to release the pressure, which can effectively prevent safety accidents, and the action is timely and reliable, and is easy to implement.

Description

technical field [0001] The invention relates to a safety device for monitoring mud pump pressure during oil drilling. In particular, it relates to a mud pump electric control safety system. Background technique [0002] In the process of oil exploration and development and drilling, timely, accurate, stable and reliable monitoring of the pressure status of the mud pump during operation, when the pump pressure of the mud pump is abnormal due to blockage of the drill bit water hole or operation error, when the pump pressure of the mud pump reaches the limit value It is the premise to prevent safety accidents to be able to alarm at the first time and stop the operation of the mud pump (stop pump to relieve pressure). [0003] At present, the commonly used safety valves for mud pumps at home and abroad are mechanical safety valves, which mainly include spring type and shear type. The valve is opened to discharge the mud in the pump body to release the pump pressure and prevent...

AI Technical Summary

Problems solved by technology

The mechanical safety valve can only tell the driller to stop the pump after it is opened. It is a reverse order to release the pump pressure first and then stop the pump. Once the safety valve fails to open in time, the mud pump will continue to run, and the pump pressure will rapidly rise beyond the limit value and die. A security incident occurred

Images