The demand for circular arc pumps in the coal chemical industry

Circular arc pump; It is the basic fluid machinery in China's coal chemical industry, and its demand has been increasing in the years following the financial crisis. In the years leading up to the 2008 financial crisis, driven by steady economic growth, the demand for primary energy showed a steady increase trend. From 2002 to 2008, the average annual growth rate of primary energy demand was 3.0%, with oil and gas growing at an average annual rate of 1.4% and 3.0% respectively, and coal growing at an average annual rate of 5.4%. By the end of 2008, coal consumption had become the fastest-growing primary energy source for six consecutive years. The growth in coal demand has become the main driving force behind the increase in primary energy demand. Compared to oil and gas resources, the world's coal resources are relatively abundant. According to statistics, the proven reserves of crude oil in 2008 were approximately 170.8 billion tons, with a reserve to production ratio of 42 years; The proven reserves of gas are approximately 185.02 trillion cubic meters, with a reserve production ratio of 60 years; The proven reserves of coal are approximately 826 billion tons, with a reserve to production ratio of 122 years. According to BP's statistics, in 2008, oil accounted for 34.6% of the primary energy consumption structure, coal accounted for 29.1%, gas accounted for 24.0%, and nuclear energy, hydropower, etc. accounted for about 12.3%. It can be seen that the relative coal resources provide resource conditions for the development of coal chemical industry. As far as China is concerned, the resource characteristics of oil shortage, gas shortage, and coal abundance are significant. According to the 2009 report on oil and gas mineral reserves, as of the end of 2008, China's remaining economically recoverable crude oil reserves were approximately 2.09 billion tons, with a reserve to production ratio of 11.8 years; The remaining economically recoverable reserves of gas are approximately 2651.1 billion cubic meters, with a reserve to production ratio of 34 years; The coal reserves are approximately 114.5 billion tons, with a reserve to production ratio of about 41 years. In recent years, with the stable and rapid development of the national economy, China's energy consumption has maintained a rapid growth trend, especially with the growth of transportation fuels and the significant increase in demand for petrochemical products, which has highlighted the contradiction of scarce oil and gas resources. From 2003 to 2009, China's primary energy consumption grew at an average annual rate of 17.3%. In 2009, primary energy consumption reached 3 billion tons of standard coal. Among them, coal accounts for about 70%, oil and gas accounts for about 20%, and nuclear power, wind power and hydropower account for about 10%. During this period, China's oil consumption grew at an average annual rate of 7.1%, while crude oil production only grew at an average annual rate of 1.8%. China's dependence on foreign crude oil has exceeded 50%. Developing alternative resources and reducing dependence on petroleum resources objectively creates opportunities for the development of China's coal chemical industry.