Oil pipeline air compression energy saving device system

Abstract

The invention provides an oil pipeline air compression energy saving device system. Pipe network pressure can serve as a control object; a pressure transmitter converts pressure of an oil pipe to an electric signal to send to a PID intelligent adjuster for comparing with a pressure set value and calculating according to a difference value and a given PID control mode; a generated control signal is sent to an intelligent electricity saving protection system; and the system controls an output power of a motor to enable actual pressure to always approach set pressure. Meanwhile, a commercial power and electricity saving switching function can be added, and a traditional control and protection system is retained; and in addition, after the scheme is adopted, the work of an air compressor motor from standing to rotation can realize soft start by an electricity saving system, so that the start of impact current and the mechanical shock to an air compressor caused by start are prevented.

Description

technical field [0001] The invention relates to the technical field of industrial energy saving, in particular to an air pressure energy saving device system for oil pipelines. Background technique [0002] The air compressor is an important load in industrial production. The operating characteristics of the traditional air compressor determine that there is a large energy waste during the operation of the air compressor. Traditional air compressor drive motors have no speed adjustment. Generally, the upper and lower limit pressure detection of the cylinder is used to start and stop the motor, or the clutch is installed to achieve relatively constant pressure control. Usually, the number of starts and stops is stipulated, such as the motor above 200KW. It is not suitable to start and stop more than 4 times per hour, and the air compressor has 6-7 times the impact current when it starts, which impacts the power grid and mechanical load; when the air compressor is unloaded, th...

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Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide an air compressor energy-saving device system for oil pipelines, which can greatly reduce the starting current of the compressor and avoid the impact and damage to the equipment caused by the excessive starting current when the compressor starts; according to the user The demand for compressed air can be precisely matched to the power of the motor to avoid waste; at the same time, the pressure stability can also be guaranteed by the production process of the gas equipment, which is very beneficial to the control of the product quality of the enterprise

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