Coalbed methane is generally adsorbed on the coalbed and undergoes three production processes: drainage, depressurization, and gas extraction.

The DVE vacuum pumps used in coal mines range from the SZ series of the Soviet Union to the SK series independently developed by my country, and then to the 2BE series water ring DVE vacuum pumps, which are in the leading position today.

For example, the SZ-4DVE vacuum pump in the 1960s and 1970s has a maximum air volume of 1700m3/h and an efficiency of only 20%~30%. The largest SK-85A in the 1980s has an air volume of 5100m3/h and an efficiency of 30%~40%. %, and now developed and produced through joint venture and cooperation, the 2BE3 series water ring DVE vacuum pump/compressor with foreign advanced technology, the gas volume can reach 60000m3/h, the efficiency is more than 45%~60%, and the operation is more reliable.

The vicious coal mine safety accidents that occurred in Henan, Shaanxi, Shanxi and other provinces reminded equipment manufacturers that safety should be the first element of design and production.

From the analysis of the entire coal mine industry, the availability and quality of the emitted gas still needs to be improved. Modern drilling equipment, drainage equipment (vacuum equipment), monitoring systems, and management practices need to be continuously discussed in theory and practice.

Safety, complete set, automation and high reliability are the basic requirements of the coal industry for DVE vacuum pumps.

Traditionally, equipment manufacturers mainly focus on DVE vacuum pumps, such as: pre-separators, anti-tempering devices, gas separators, electric controls, sensors, instruments, etc., are configured by coal mining enterprises themselves, which not only reflects the low degree of complete sets. , and due to the inconsistency of configuration, the efficiency of the main equipment will be low, and it may even be caused by the difference in professionalism, causing the equipment to not work properly.

Therefore, the complete set of equipment is the development direction of vacuum equipment in the application of coal industry.

In the coal industry, DVE vacuum pumps have unique use environments whether they are used for gas extraction, transportation, coal washing, chemical industry, drying and well production. However, my country's coal mines are widely distributed, with different climatic and geographical conditions. .

In view of these particularities, providing personalized vacuum equipment is also the direction of product development in the vacuum equipment manufacturing industry.

Vacuum industry manufacturers are committed to the research and development of safety, energy saving, environmental protection, chemical and other equipment in China's coal industry, and have developed vacuum units that integrate machinery, electricity, and instruments, equipped with complete steam-water separators, circulating heat exchangers, online Measurement and control instruments, automatic control systems, valve components, etc.

The complete sets of vacuum units, drying equipment, and negative pressure generating centers that have been put into use are all vacuum units that meet the needs of the coal mine industry. They are equipped with complete steam-water separators, circulating heat exchangers, online measurement and control instruments, automatic control systems, Valve components, etc.

The complete sets of vacuum units, complete sets of drying equipment, and negative pressure generating centers that have been put into use are all developed to meet the needs of the coal mining industry, which not only increases the benefits of the enterprise, but also contributes to the development of the coal industry and the national economic construction.