一种空压机余热回收系统研究与实现

发布时间：2018-06-10 04:00

本文选题：余热回收 + 空压机　；参考：《北方工业大学》2012年硕士论文

【摘要】：绝大部分工厂都需要使用空气压缩机压缩空气,空压机在压缩空气过程中会产生大量的热量,导致压缩空气温度升高。在传统的使用过程中,往往为了满足空压机工作要求需要配备循环冷却水或者冷冻水对压缩空气进行热交换进行冷却来保证其稳定运行,同时产生的这部分热量直接被排放到大气中去。这不仅损失了大量的热能同时还造成了生产冷却水或冷冻水的电耗量大幅度上升。为了回收这部分热量同时减少制冷系统的能量消耗,以一个现有的具有空压站的一个工厂为例,通过理论分析与实际研究介绍了一种余热回收技术,通过在原有空压机冷却系统的基础上加以改造,在空压机压缩后的出口管道上安装三通阀,增加一套冷却系统和换热系统,并实现冷却水温度以及冷却水量的自动控制,在不影响空压机正常运行的情况下将空压机压缩空气做功产生的热量代替用于其它工艺中需要的用于给原水加热的能源,从而减少了用于空压机冷却以及生产工艺加热的能耗,同时在原有空压机冷却系统的基础上加以改造,减少一部分冷却系统的使用量以达到减少了冷却系统的能耗的目的。并结合现场调研和对系统节能运行评估手段,计算得出了此种余热利用技术的节能效果,并研究出此种余热回收效益的一般计算方法,同时对工业压缩空气系统中目前存在的新兴的节能技术的特点及应用范围进行了分析和探讨,为今后在此基础上开展的合同能源管理模式奠定了技术基础,为企业进行节能改造提供了理论依据。具有良好的经济和社会效益。
[Abstract]:Most factories need to use compressed air compressor, air compressor in the process of compressed air will produce a lot of heat, resulting in compressed air temperature rise. In the traditional use process, in order to meet the operational requirements of the air compressor, it is often necessary to provide circulating cooling water or refrigerated water to cool the compressed air for heat exchange to ensure its stable operation. This part of the heat generated at the same time is emitted directly into the atmosphere. This not only loses a lot of heat energy, but also increases the power consumption of cooling water or freezing water. In order to recover this part of heat and reduce the energy consumption of refrigeration system, a waste heat recovery technology is introduced through theoretical analysis and practical research, taking an existing plant with an air pressure station as an example. On the basis of the original cooling system of the air compressor, the three-way valve is installed on the compressed outlet pipeline of the air compressor, a set of cooling system and heat exchange system are added, and the cooling water temperature and the cooling water quantity are automatically controlled. Without affecting the normal operation of the air compressor, the heat generated by the work done by the compressed air of the air compressor is replaced by the energy used to heat the raw water needed in other processes, thus reducing the energy consumption for the cooling of the air compressor and the heating of the production process. At the same time, on the basis of the original cooling system of air compressor, the amount of cooling system is reduced to reduce the energy consumption of the cooling system. Combined with field investigation and evaluation of energy saving operation of the system, the energy saving effect of the waste heat utilization technology is calculated, and the general calculation method of the efficiency of the waste heat recovery is also studied. At the same time, the characteristics and application scope of the emerging energy-saving technology in the industrial compressed air system are analyzed and discussed, which will lay a technical foundation for the contract energy management mode to be carried out in the future. It provides the theoretical basis for the enterprise to carry on the energy saving transformation. It has good economic and social benefits.
【学位授予单位】：北方工业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH45

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