Forced elimination of inefficient air compressors by energy conservation supervision

Recently, the Ministry of Industry and Information Technology issued a notice on the implementation of industrial energy-saving supervision work in 2021.The Notice requires that enterprises in key industries such as iron and steel, non-ferrous metal smelting, petrochemical industry, building materials, etc. be sorted out and sorted out in an all-round way, and that special supervision be carried out on the implementation of mandatory energy consumption limits per unit product by enterprises in key industries this year. Steel, cement (with clinker production line) and electrolytic aluminium enterprises shall be fully covered by 2021.Implement special supervision on energy efficiency improvement for users and enterprises of key energy-using products and equipment, such as motors, air compressors, fans, pumps, transformers, etc., and urge enterprises to eliminate inefficient products that fail to meet the limits of mandatory performance efficiency standards.Strive to achieve full coverage of energy-saving supervision of enterprises in key industries in the period of the Fourteenth Five-Year Plan to help achieve carbon peak, carbon neutralization and target.

During the Thirteenth Five-Year Plan period, the Ministry of Industry and Information Technology organized and carried out national special energy-saving supervision on major industries for the first time in a unified way, totally supervising 23,470 industrial enterprises, achieving full coverage of energy-saving supervision on 19 high-energy-consuming industries, such as steel, cement, flat glass, electrolytic aluminium, etc., and accumulatively found 1012 enterprises violating the regulations, all of which were ordered to rectify within the time limit.

Focus on monitoring high energy-consuming industries such as iron and steel, non-ferrous, petrochemical, building materials, etc., and basically achieve full coverage of mandatory energy consumption limits per unit product, including steel and ferroalloys in metallurgy, copper, aluminium, lead, zinc, magnesium, polysilicon, aluminium alloy and copper alloy in non-ferrous metals, cement, flat glass, ceramics, building gypsum in building materials, etc.Ethylene, synthetic ammonia, urea, carbide, coking, caustic soda, phosphatizing, etc. in petrochemical industry, beer, sugar, paper and other industries in light industry.The violation enterprises shall be notified of rectification within a time limit and shall be subject to special supervision of the violation enterprises in the previous year by looking back each year.The proportion of enterprises violating regulations found by supervision has decreased from 10.3% in 2016 to 2.9% in 2020. The standard limit rates of mandatory performance consumption limits for steel, petrochemical, building materials, non-ferrous and light industry industries have reached 92%, 97%, 96%, 96% and 97% respectively.The industrial energy-saving supervision transmits the positive pressure continuously, impels the enterprises to eliminate the backward technical processes and speeds up the implementation of energy-saving technical transformation.Compared with 2015, in 2020, the comprehensive energy consumption of tons of steel, tons of cement clinker, tons of ethylene, tons of synthetic ammonia, tons of paper and cardboard decreased by 3.7%, 3.6%, 2.0%, 5.0% and 9.4% respectively.

Implement the differential electricity price policy, carry out special supervision on 3914 enterprises in iron and steel, cement and electrolytic aluminium industries, and find out more than 200 enterprises violating the regulations. Cooperate with the price authorities to impose punitive electricity charges on enterprises violating the regulations, and use price means to force enterprises to implement energy-saving transformation.Sichuan and Tianjin improve monitoring efficiency and accuracy by developing and using energy consumption data analysis benchmarking and backward electromechanical equipment identification software.Hunan has integrated energy-saving supervision and law enforcement with the publication of energy-saving laws and standards.Jiangsu Province carries out unified training and examination for law enforcement personnel of energy-saving supervision;Guangxi and Liaoning promote the combination of energy-saving supervision and energy-saving monitoring, and strengthen the analysis and application of monitoring results;In Chongqing and other places, when implementing preferential policies such as fund support and large-user power transaction, one vote veto is applied by enterprises violating regulations to enhance the effectiveness of energy-saving supervision and law enforcement.

Implement the requirement of "putting in custody", not only strengthen energy-saving supervision, but also organize third-party organizations to provide public-spirited energy-saving diagnostic services. Over 400 organizations have been organized to provide energy-saving diagnostic services to 14,000 enterprises nationwide. 25,000 suggestions for energy-saving retrofit measures have been put forward to help enterprises find out problems and tap energy-saving potential.Carry out a series of activities of "Energy-saving services into enterprises", guide enterprises to apply advanced energy-saving technology and equipment and implement energy-saving technical transformation.Ultra-high pressure gas power generation, sintering residual heat generation in iron and steel industry, low temperature residual heat generation in cement industry and high efficiency falling film evaporation in petrochemical industry will be promoted.

Special supervision was carried out on energy efficiency improvement of key energy-using equipment such as motor system and electronic kiln. About 150,000 low-efficiency motors and 62,000 low-efficiency transformers were found.Hebei, Inner Mongolia and other places set up record books for violation equipment to urge enterprises to eliminate within the time limit.Focusing on emerging areas such as data centers with rapid growth in energy consumption, 404 key energy-using data centers were monitored, involving 260,000 cabinets, and 50 data centers were found to have irregularities such as irregular equipment for energy metering.

In 2016, Measures for Industrial Energy Saving Management were issued and implemented to further standardize the work system, contents and procedures of industrial energy saving supervision.Strengthen the basic support function of the standards, and organize 390 industrial energy-saving standards such as energy consumption limits per unit product of cement products and guidelines for energy efficiency evaluation of iron and steel enterprises.Work manuals on energy-saving supervision of 27 key industries such as steel, non-ferrous, petrochemical, building materials, light industry, 6 key energy-using equipment such as motor, air compressor and transformer are formulated and published, and textbook Industrial Energy-saving Supervision is compiled and published.29 national energy-saving supervision business training sessions were organized and 7,240 industrial energy-saving managers and personnel of energy-saving supervision institutions were trained in total.

Since its inception, u-air chain has always insisted on building energy-saving ecological air compressor, responding positively to the national call, and creating global high-quality aerodynamic power is the aim of every excellent gas reservoir personnel.