At present, only about 35% of the fuel energy is converted into electric energy by the Gas-fired power plant unit, about 30% is discharged with exhaust gas, 25% is taken away by the cooling water of the Gas-fired power plant unit, and other losses such as emission through the fuselage account for about 10%. Waste gas and heat exchanger lose more power than useful work.

在我国，目前占燃气发电机组燃料近55%热值的废气和冷却水余热资源基本上被白白浪费掉，燃气发电机组余热利用技术的就是来实现将原本白白浪费掉的热资源充分利用的系统。

In China, waste gas and cooling water waste heat resources, which currently account for nearly 55% of the calorific value of Gas-fired power plant unit fuel, are basically wasted. The waste heat utilization technology of Gas-fired power plant unit is to realize the system of making full use of the waste heat resources.

随着人民生活质量的提高，制冷和采暖越来越普及，能源消耗越来越大，同时燃气发电机组余热资源目前没有得到综合利用，消耗了大量能源。根据燃气发电机组余热利用现状，我公司发挥技术优势，研制开发了一套燃气机组烟气余热利用配套热管式余热锅炉及热管换热器，产生的过热蒸汽和热水用于余热发电及公司内部冷热电联供。

With the improvement of people's living quality, refrigeration and heating are becoming more and more popular, and energy consumption is increasing. At the same time, the waste heat resources of Gas-fired power plant units are not comprehensively utilized at present, which consumes a lot of energy. According to the current situation of waste heat utilization of Gas-fired power plant units, our company has developed a set of heat pipe type waste heat boiler and heat pipe heat exchanger for waste heat utilization of flue gas of gas-fired power units by giving full play to its technical advantages, and the Superheated steam and hot water generated are used for waste heat power generation and internal combined cooling, heating and power supply of enterprises.

在燃气机组发电的同时，以机组废气的热量为能源，烟气通过热管余热锅炉及热管换热器，加热介质水，热管余热锅炉产生的过热蒸汽用于余热发电，热管换热器产生的热水通过溴化锂冷水机组制冷或制热，系统原理如下图所示：

At the same time of power generation of gas turbine unit, the heat of unit exhaust gas is taken as the energy source. Flue gas passes through heat pipe waste heat boiler and heat pipe heat exchanger, heating medium water, Superheated steam generated by heat pipe waste heat boiler is used for waste heat power generation, and hot water generated by heat pipe heat exchanger is cooled or heated by Lithium bromide water chiller. The system principle is shown in the following figure:

余热制冷供暖系统流程图

Flow diagram of waste heat refrigeration and heating system

综合利用燃气发电机组热能主要从叁个方面着手：即电力供应采暖洗浴等供热以及夏季空调制冷。在综合利用的设计过程中应充分考虑以下几方面的因素：

Comprehensive utilization of heat energy of Gas-fired power plant units mainly starts from three aspects: power supply, heating and bathing, and air conditioning and refrigeration in summer. In the design process of comprehensive utilization, the following factors should be fully considered:

利用应避免对燃气发电机组的性能产生大的影响，即不影响燃气发电机组的正常运行及功率输出；

The utilization shall avoid great influence on the performance of Gas-fired power plant unit, that is, it shall not affect the normal operation and power output of Gas-fired power plant unit;

排气总管到余热利用系统之间的距离应尽可能短，同时应充分考虑排气管的隔热保温，减少从燃气发电机组排气出口至热管余热锅炉的热量损失；

The distance between the exhaust header and the waste heat utilization system shall be as short as possible, and the heat insulation of the exhaust pipe shall be fully considered to reduce the heat loss from the exhaust outlet of the Gas-fired power plant unit to the heat pipe waste heat boiler;

需要考虑燃气发电机组负荷变化时给余热发电及余热制冷制热造成的影响，避免因负荷变化使制冷（或制热）过量或能力不足；

It is necessary to consider the impact on waste heat power generation and waste heat refrigeration and heating caused by load change of Gas-fired power plant unit to avoid excessive refrigeration (or heating) or insufficient capacity due to load change;

考虑到整个流程控制范围大项点多操作难度大等因素，整个系统应尽可能实行电气自动化控制和监测；

Considering the large control range, multiple items, and high operational difficulty of the entire process, the entire system should implement electrical automation control and monitoring as much as possible;

整套系统应充分考虑维护操作以及使用的安全性。

The entire system should fully consider the safety of maintenance operations and use.