Use method of high temperature and high pressure steam energy saving mixing

Abstract

The invention discloses a use method of high temperature and high pressure steam energy saving mixing. Mixing equipment is included, and comprises a first regulating valve, a second regulating valve,an adjustable actuator, a steam ejector, a pressure transmitter, a temperature transmitter and a steam mixing header. The steam ejector is provided with three connecting ports, the three connecting ports include a first connecting port, a second connecting port and an discharge port, the first connecting port is connected with a main steam conveying pipe, and the second connecting port is connected with the output end of the steam mixing header. According to the use method of high temperature and high pressure steam energy saving mixing, the loss caused by direct temperature and pressure reduction of high temperature and high pressure steam is reduced, the cost is saved, re-cold / reheat mixing steam is used as ejected gas, the flow rate of re-cold and reheat steam is flexibly controlled andadjusted, the ejector outlet temperature is ensured to meet the user demand, and the problem that the steam ejector has no suitable low pressure pumped steam source is fundamentally solved.

Description

technical field [0001] The invention relates to the technical field of energy-saving mixing of high-temperature and high-pressure steam, in particular to a method for using energy-saving mixing of high-temperature and high-pressure steam. Background technique [0002] With the continuous development of my country's national economy, the demand for industrial heat is strong, and the domestic industrial heat demand accounts for about 70% of the total heat demand. However, my country's industrial heat supply has relatively backward production technology and unreasonable industrial structure. The main industrial products The average unit energy consumption is about 30% higher than the international advanced level. In the past, various small boiler heating methods not only waste energy, but also cause serious environmental pollution. Centralized heating with large units with high parameters, low coal consumption, and low emissions is an important development direction in the futu...

AI Technical Summary

Problems solved by technology

[0004] (1) To meet the above requirements, it is necessary to use high-pressure and high-temperature steam such as main steam or 1-extraction steam. After decompression and decompression, the loss of available energy is large, resulting in an increase in the cost of steam for users;

[0005] (2) The pressure difference between the front and back of the pressure reducing valve is large, resulting in a short service life of the valve;

[0006] (3) It is currently impossible to find a suitable low-pressure steam source to be sucked

If you only choose cold re-steam, you will face the problem of insufficient suction volume or low temperature of the mixed steam;

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