To have a beautiful environment, air pollution must be solved first. Then we must deal with the waste gas and crack down on the waste gas emission. Among them, oil and gas emission is one of our main tasks. Oil and gas pollute the air heavily, and have a great influence on our health and safety. So we need to do a good job of oil and gas recovery, so oil and gas recovery equipment is an important device. There are many kinds of oil and gas recovery equipment, and condensing PLC oil and gas recovery equipment is one of them. This kind of recovery equipment can automatically start and stop the oil and gas recovery device according to the set conditions, and no one is on duty. This recycling equipment is more automatic and convenient. It has the advantages of alarm and acousto-optic display, and is a recycling equipment chosen by many enterprises. Let's take a look at the condensing PLC oil and gas recovery equipment.
This is an automatic control system, and its main components are electrical actuators, graphical man-machine interface (HMI) and so on. The control part of condensing PLC oil and gas recovery equipment includes explosion-proof control cabinet, explosion-proof unit electric control box, PLC visual operating system, condensation temperature display instruments at all levels, refrigeration exhaust and return air pressure display instruments at all levels, alarm acousto-optic display and so on.
In order to ensure the reliable operation of the system, the automatic control system adopts safe and reliable equipment, the key instruments are imported equipment, and the PLC programmable module adopts Siemens main parts. The system is designed with a variety of safety interlock protection functions, which can realize safety protection when any link fails during the system operation. The operation status and parameters of the device are transmitted to the control room, and the staff can monitor the operation of the equipment through the upper central station. All the setting parameters can be adjusted by the authorization password. The oil pressure, exhaust air pressure, motor operating temperature and current of the refrigeration unit are all set with monitoring display and automatic protection. The electrical equipment is purchased and configured according to the national explosion-proof standards. The machine room adopts positive pressure ventilation explosion-proof type, and it has passed the inspection by the National Electrical Explosion-proof Quality Certification Center and obtained the explosion-proof certificate. Equipment such as machine room and condensation box are pre-installed on the same skid-mounted chassis, which is convenient for transportation and hoisting. The device is transported to the site, connected with oil and gas inlet pipeline, oil recovery output pipeline, power supply and automatic control remote signal cable, and can be put into operation.
The components of oil and gas recovery device are different according to the different oil and gas treatment processes. The absorption and adsorption combined device that oil and gas recovery device has been used now is mainly equipped with adsorption tank, dry vacuum pump, absorption tower, circulating oil pump, PLC programmable control system and electrical executable devices. This configuration can not only maintain the stability of adsorption, but also reduce energy consumption, equipment loss and ensure higher vacuum degree. The heavy activity of adsorbent can technically guarantee the service life and stability within the service life. Compared with single adsorption method or absorption method, this combined configuration will be more economical to be used in refineries, oil storage areas or benzene hydrocarbon acid ether chemical enterprises.
The oil and gas recovery device of condensation and adsorption method is a more combined way, which is mainly equipped with refrigeration unit, cold box, adsorption tank, vacuum pump, oil delivery pump, PLC programmable control system and electrical executable devices. The refrigeration temperature of the condensation system is as low as -70℃, and the whole process of oil and gas collection, condensation and liquefaction, oil-water separation condensate transportation and warehousing can be automatically controlled by PLC control and frequency conversion adjustment technology, so that energy conservation and emission reduction can be achieved without deep cooling. For variable working condition adjustment of refrigeration unit and economic operation of the system, condensation and adsorption methods adopt the advantages of the two methods, which are scientifically matched, high in safety and guaranteed in equipment recycling efficiency.