The three-phase separator is a special separation device, which is more complicated than the ordinary separator, so it is inevitable to have faults in the process of use, especially in the process of mechanical operation, which requires the staff to quickly solve the faults to ensure the rapid recovery of production, otherwise it will delay the production progress. In the daily work of three-phase separator, there are often some faults caused by human or objective reasons. In the case of human error, only professional training for relevant staff and the establishment of relevant operating rules and regulations can be avoided to the utmost extent. Daily work management In the daily production process, due to the appearance of laminar flow and the corrosion of metal plates, some faults often occur, so the operation of the three-phase separator must be stable. That is to say, in the process of operation, when it is time to pressurize, when it is not time to pressurize, such as in the late stage of oil production, it is necessary to decompress appropriately to avoid extrusion failure, and to avoid laminar flow as far as possible in the control of equipment entrance and exit, for example, when cleaning the tank of equipment, try to clean the polymer residue near the steel mesh and so on. Protection of key parts Protection of key parts usually refers to corrugated board and liquid dispersion board mentioned in this paper. Generally speaking, the liquid dispersion plate at the outlet must be inspected before each construction, and its integrity must be maintained, so as to enhance the impact resistance and prevent the opening and welding of reinforcing materials. Then the liquid separation plate is strengthened to ensure that the liquid flow can be evenly opened for three times and reach a stable flow state to the limit. In addition to these related solutions, it is also a good choice to use corrosion-resistant materials to make the fixed bracket of corrugated board, but besides corrosion resistance, it is also necessary to pay attention to the impact strength of the materials. Training of relevant staff Training of staff is inevitable and necessary for every enterprise. Workers must be familiar with the equipment, whether it is structure, operation, performance, etc., and try to avoid emergency switches. Once the three-phase separator fails, a professional team must be selected for maintenance to avoid the expansion of the fault. In the process of oil exploitation, three-phase separator plays a very important role in crude oil dehydration and light hydrocarbon recovery. Therefore, in the production process, the relevant staff must have a certain understanding of the equipment, whether it is the overall performance and structure of the equipment or the proficiency of operation. Once the three-phase separator breaks down, it is not allowed to disassemble or repair it without permission, but must be completed by a professional team, such as directly looking for the manufacturer of the three-phase separator to avoid unnecessary safety accidents.