method of monitoring and control of the process of absorption gas dehydration

The invention relates to control of engineering processes of complex preparation of gas, and it can be used in oil and natural gas industry. A method of monitoring and control of the process of absorption gas dehydration, which includes measurement of the gas flow and consumption of the absorbent upstream of each absorption column and the moisture content of the dry gas, absorbent pressure upstream of absorption columns, gas pressure in the conduit of the dry gas, levels of absorbent in each absorption column and in the weathering container, temperature of absorbent in the evaporator of each of absorbent regeneration unit, temperature of vaporous waste of the regeneration of absorbent and voltage frequency of each pump, maintenance of set values of the ratio "gas flow rate - absorbent flow rate" for each absorption column, ratio "absorbent pressure upstream of the absorption columns - gas pressure in the conduit of dry gas", level of absorbent in each absorption column and in the weathering container, temperature of absorbent in the evaporator of each absorbent regeneration unit and temperature of vaporous waste of absorbent regeneration. Control of the absence of flame of each burner after its start-up in each unit of absorbent regeneration is carried out, reaching in the evaporator of each of the units of absorbent regeneration of minimum value of the level of saturated absorbent, maximum value of absorbent temperature and of temperature of flue gases, minimum or maximum value of fuel gas pressure upstream of each burner and minimum value of air pressure, which is supplied to each burner and delivery, in case of identification of each stated events, of corresponding signal and blocking the burner operation of corresponding unit of absorbent regeneration, and also the control of reaching gas concentration in the technological pumping station of limiting value and delivery, in case of emergence of noted event, of corresponding signal and start of emergency exhaust ventilation, which is turned off after reduction of gas concentration below maximum level and disappearance of all signals on the gas concentration, blocking of the burner operation of all units of absorbent regeneration, pumps, air condensers and exhaust ventilation by operator, in case of identification by him of events dangerous for operation, which automatic identification is not provided, for example, fires. The invention provides for wider functional capability and increase of the efficienc