December 27, 2017, Anqing Petrochemical Electrical Instrument Refinery electrical work area to maintain four workers in close cooperation with the factory technicians, after three days of intense work, one after another to complete the RLG device 25 electric control valve program refresh, the software Upgrade, reset important parameters such as 'upgrade' work to ensure the smooth start of the RLG installation.
In view of the start-up operation of the RLG unit, the electric equipment of the new hydrogen compressor K501B, which is the core equipment of the device, caused the device fluctuation due to the self-operation of the RLG device. The electric operation area of the refining department of the Electric Instrument Department attaches great importance to immediately organize the elite units to formulate the corresponding rectification plan , To carry out troubleshooting and rectification measures.Electric valve in the device to open and close the pump process plays a crucial role in the event of failure will cause device fluctuations or even cause a major parking accident.maintenance of the four classes of vice squad Li Yongbin Led Wang Wei, He Yuanxing and other manufacturers in close cooperation with the commencement of rectification measures.When they open the electric valve cover by Taiwan to check and found that the electric valve action records show that the 'infrared off valve' under normal circumstances 'infrared off valve' Only through the remote control valve, but at the time there is no platform around the existence of personnel, things must find out unknown sources of interference.After communication with the manufacturers to reach a consensus, we first return the valve circuit board manufacturers to detect, Through testing there is no abnormal phenomenon; continue to study thoroughly and through the conversion device connected to the electric actuator infrared receiver, in the new K501B of the compressor motor at the valve receives a large number of random data analysis according to the phenomenon, is determined after factory art electric valve malfunction because near infrared receiving means receives signals resulting from unknown sources of interference.
In order to protect RLG device electrical equipment in a healthy and good standby state, all combatants race against time to shield the infrared operation function of each electric valve so that they do not accept interference from external factors, the system program is refreshed, the software is upgraded, and important data is re-performed Set, and bang one by one to open the electric valve cover will participate in the DCS interlock electric valve terminal connection point for further inspection to confirm and tighten.
As of December 27, 25 electric control valve rectification work has been successfully concluded, effectively RLG devices successfully eliminate the major safety hazards.
