Jiang Dawei: From Vinyl "Little White" to Skilled Expert

He has worked in the cracking workshop of Daqing Petrochemical Company Chemical Plant No.
1 for 38 years, and participated in the original start-up of Daqing ethylene 300,000 tons/year plant and the reconstruction and expansion of 480,000 tons/year and 600,000 tons/year plants
.

He has witnessed the process of the ethylene plant from imported technology and equipment to the realization of all localization.

Adding color to the first domestically produced unit

　Adding color to the first domestically produced unit Adding color to　the first domestically produced unit

Recalling that when he first stepped into the first chemical plant in 1984, Jiang Dawei had just turned 18 years old.
Daqing Petrochemical's 300,000-ton/year ethylene plant was under construction.
As a new apprentice, he was sent to Beijing and other places to learn cracker production technology.

.

Two years later, when the cracking unit was put into operation, Jiang Dawei started his career as a compressor apprentice
.

He learned various production operation techniques and gradually grew into an external operator, a main operator and a monitor

In 1999, Daqing Petrochemical ethylene expanded from 300,000 tons/year to 480,000 tons/year
.

Jiang Dawei, as the technical backbone of the workshop, is responsible for the commissioning of the core dynamic equipment of the device.

In order to ensure that the unit is fully controlled, he, together with the instrumentation and power supply personnel, repeatedly confirmed the interlocking signals of more than a thousand points dozens or hundreds of times
.

It is with this momentum that he and his colleagues successfully debugged the unit as scheduled, making contributions to the localization process of key equipment in China's petrochemical industry

　　Strategies for long-term operation

　Advice for long -term operation Advice　for long-term operation

　　In 2004, Daqing Petrochemical's ethylene production capacity was expanded from 480,000 tons/year to 600,000 tons/year.
With the completion of the expansion and reconstruction of the ethylene plant, the safety production and long-term cycle of the plant have become the primary tasks
.

　　During the expansion process, Jiang Dawei, who has served as the duty leader of the cracking workshop, is responsible for the production balance work of 2 sets of ethylene units in the cracking workshop, a total of 5 sections
.

Ensuring the long-term operation of the device, meticulous operation, maintaining the smooth operation of the system, and checking production hidden dangers have become the work that Jiang Dawei must do every day

　　In the past summer production, with the increase of air temperature, the temperature of the cooling water of the compressor increased, and the temperature of the exhaust gas of the compressor also increased
.

This requires occasional cleaning of the compressor rehydrator so that the compressor can operate normally in high temperature climates

　　To this end, Jiang Dawei put forward a suggestion for online cleaning of the compressor rehydrator.
The workshop adopted and implemented it through research, demonstration, planning, determination of plans and emergency plans to ensure long-term and high-load production of ethylene plants during high temperature in summer
.

　　Escort to improve quality and efficiency

Escort to improve quality and efficiency Escort to improve quality and efficiency

　　The major overhaul in 2018 is the longest and most difficult one in the history of Daqing Petrochemical's large ethylene.
Among them, the EC-301 unit and steam turbine have not undergone localization since the 300,000 tons/year ethylene plant started in 1986.
Difficulty
.

　　In the face of the overhaul task, he confirmed and listed the position of each blind plate, and confirmed the key parts at least three times to ensure that each blind plate was installed correctly
.

During the maintenance period, he closely followed the construction progress, cooperated at any time, and reported the work progress in real time

　　In 2019, Jiang Dawei was hired by China National Petroleum Corporation as a technical expert and the first technician of Daqing Petrochemical's ethylene plant
.

After that, Jiang Dawei put his focus on technological innovation, and participated in the long-cycle operation seminar of "three machines" of ethylene plant organized by the group company for many times, and the difficult seminar on optimization of process water system of cracking plant.

　　He also participated in two topics raised by Liaoyang Petrochemical Refinery at the group company level, "the problem of blockage of the high cut-off level gauge in the hydrogenation unit" and "the problem of seeking an optimized solution for shortening the adjustment time when the product plan of the hydrotreating unit is switched".
, and successfully resolved both issues
.

　　In the past 38 years, Jiang Dawei has also cultivated more than 20 team leaders, who have spread all over the country's major ethylene enterprises, and have become an important force in the production of various enterprises
.