The necessity of accident-prevention protection of powerful compressors and other unique equipment has never raised doubts of the experts, but not the protection of pumping units. High concentration of pump units at petrochemical process units often causes accidents and other production defects.
In case we take the probability of trouble-free operation of a pump unit per day equal to 0.99, the probability of failure for machine fleet containing 100 units will be near 1. In this case the process system is almost nonserviceable.
Increase of operating reliability and maintainability of the units, technical and environmental safety, corporate culture and procedures discipline represents a powerful source of prevention of accidents and personnel traumatizing, and saving of considerable means required for the reconstruction of Russian enterprises. It is achieved by the implementation of ecologically conscious resource-saving technology of operation of oil and gas equipment on the basis of the COMPACS® complex of methodological means and firmware for computer vibration monitoring, vibration analysis and prediction of technical condition of pump-and-compressor equipment.
Malov E.A., Shatalov A.A., Bronfin I.B., Dolgopyatov V.N., Kostyukov V.N., Boychenko S.N., Meling A.Y. Efficiency of implementation of the COMPACS stationary systems for vibration analysis at Omsk Refinery // Industrial safety. - M.: 1997. - № 1. - p. 9-14
Vibration-survey transducers (VST) are designed for transformation of mechanical oscillations, impulse and impact mechanical effects to a proportional electrical signal.
Among various classes of VST (electromagnetic, inductive, capacitive, etc.) piezoelectric vibration transducers have widespread application. Detecting element of concerned transducers is piezoelectric ceramics comprised in the form of plate, disk, and ring with working surfaces covered by the electrodes generally made of silver, platinum, and nickel alloys.
The article presents the requirements for VST for industrial application, their technical characteristics and terms of delivery.
Kostyukov V.N., Donskov V.I., Ivanov A.A., Zagorodniy V.S. Vibration-survey transducers for industrial application // Foreign radio electronics. - M., 1996. - № 9. - p. 65-67
Long experience of Scientific Design and Technological Department (SDTD) PIEZOPRIBOR in the field of development and construction of piezoelectric vibration sensors (vibration accelerometers) was used to create a number of vibration analysis units for engineering, space-rocket hardware, nuclear power stations, and oil refining industry.
One of the last works ofDYNAMICS Scientific & Production Center (SPC) is creation of the COMPACS® system of automatic vibration analysis and computer monitoring for accident prevention and condition control of refining and petrochemical equipment.
Vibration accelerometers of types AB-ZPFR and AB-320FR developed by SDTD PIEZOPRIBOR in partnership with DYNAMICS SPC are of service in this system. Concerned vibration accelerometers have a number of unique characteristics. They are continuously upgraded according to the customer requirements and thus ensure reliable measurement of machinery vibration condition. The system operates according to the principle of conversion of physical parameters (vibration, temperature, pressure, current, etc.) of the equipment under control into an electrical signal by means of the sensors.
Kostyukov V.N., Donskov V.I., Tishina T.G. COMPACS system of computer monitoring for accident prevention and condition control // Foreign radio electronics. - M.: 1996. - № 9, p. 68-69
In industries with potentially hazardous production facilities there are considerable number of accidents related to the failure of pump-and-compressor equipment and other energy machines. As a result the atmosphere and environment are polluted by toxic and explosive products.
Considering substantial wear of equipment, the major line of ensuring its safety (along with renewal of the used fleet) is implementation of objective and comprehensive condition control based on regular monitoring of changes in the parameters characterizing the reliability of equipment operation.
In 1991 scientific and production centre Dynamics developed the COMPACS® system for automatic vibration analysis and computer monitoring, that is distributed system of measurement and control. In order to process, display, accumulate, store and register signals of the sensors installed on the equipment they are submitted to vibration diagnostic station constructed on the basis of an industrial computer installed at operator's desk.
Malov E.A., Bronfin I.B., Dolgopyatov V.N., Mikerin B.I., Kostyukov V.N., Boychenko S.N. Implementation of the COMPACS systems – ensuring accident-free operation of industrial enterprises with uninterrupted cycle // Industrial safety. - M.: 1994. - № 8. - p. 19 - 22