废水余热回收装置设计说明书.docVIP

摘 要 ABSTRACT In industrial production in many areas has been using some new techniques, new technology and new equipment to reduce heat loss.?Coal, oil, natural gas and other primary energy conversion from heat, only one wind has been the effective use of a considerable part of the heat ---- waste heat in the combustion or added without being fully utilized in the production process while?wasted.?Therefore, in general, based on the number of emissions out of the remaining heat can estimate the level of utilization of geothermal energy.? At present, Chinas energy utilization is not high, the average is less than 30%, and look at the more developed countries, has reached more than 40%, and even some of them have more than 50%.?From the point of view of energy conservation and improving energy efficiency, a reasonable recovery and use of waste heat is not only not to, but also entirely possible.? ?Small and medium-sized enterprises discharge industrial wastewater contains large amounts of energy to waste a great pity.?At the same time, production and water tend to have certain temperature requirements, the need for heating tap water requires a lot of energy.?In addition, staff of domestic water is also an urgent demand for hot water, water heaters, heating parity generally, but a lot of energy is self-evident.?Therefore, it is necessary to design a waste water heat recovery equipment, to recycling companies own the wastewater discharges of heat for the production and life.? Chapter 1: In this paper the purpose and significance of the thesis introduces the structure, performance, and the main advantages of all-welded plate and shell heat exchanger with the performance of the design of waste water heat recovery equipment needed materials, the equipment?preliminary ideas, and gives the expected parameters of the device.? Chapter II: Basic to the establishment of a thermodynamic calculation of the basic mathematical model for heat exchanger design provide mathemat