Discussion on cogeneration issues
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This post was last edited by lflsedin on 2017-5-30 at 10:49. For new projects, it is planned to install high-temperature and high-pressure coal powder boilers. Firstly, the process requires about 50 kilograms of superheated steam as the feed steam. This part of the steam is achieved through a backpressure machine. In addition, some of the units produce high-temperature and high-pressure steam, which is intended to be used for waste heat power generation. I would like to ask everyone for an explanation regarding its compliance with the \"Regulations on Heat and Power Co-generation, Document No. 617 issued by the National Development and Reform Commission for Energy Affairs\", as well as a reasonable justification for it.
50 kilograms of pressure is equivalent to 5.0 MPa; if the thermal load requirements of the production process dictate this pressure level, it is best to install power generation units with high-to-ultra-high pressure backpressure, such that the exhaust pressure is 5.0 MPa. It is correct to use the high-temperature and high-pressure steam generated as a by-product of some units in order to generate power from waste heat; if there is an appropriate heat load, extraction turbines or backpressure turbines can be installed, otherwise only condensing turbines are feasible.