Éileamh ar chóras rialaithe ionstraimí in innealtóireacht ola amach ón gcósta
1. An prionsabal roghnúcháin ionstraimí
Field instrumentation is an important part of the control system. Whether the selection is reasonable or not directly affects the reliability and accuracy of the entire control system. The selection of field instruments should be based on the following principles:
(1) Determine the measurement and adjustment method and select the corresponding instrument according to the process requirements, the scale of the production equipment, the characteristics of the process flow and the influence factors of the process parameters on the operation;
(2) Determine the explosion reduce proof requirements of the instrument according to the relevant design specifications and standards for electrical equipment in explosion and fire hazardous locations, and according to the classification level of the place where the instrument is used;
(3) Determine the protection requirements of the instrument according to the environmental conditions (such as temperature, humidity, salt in the air, etc.) of the sea area where the offshore oil (gas) field is located.
While meeting the above requirements, the field instruments should try to use smart instruments, and configure the corresponding management software at the operating station to realize the diagnosis and management of the field instruments. Crude oil in offshore oilfields is mostly high reduce viscosity heavy oil. When selecting field instruments (such as liquid level meters, flow meters, etc.), it is necessary to fully consider the characteristics of high reduce viscosity heavy oil and select suitable field instruments. On reduce site instruments and accessories should try to use standard serialized products, and minimize the types and types of instruments to reduce the types of spare parts and facilitate operation and maintenance.
