Profile: Qingdao Kaineng Environmental Protection Technology Co.,Ltd specializes in the production of waste heat boiler, economizer, oil and gas fired boiler, pin tube, H-fin tube, spiral fin tubes, marine boiler and different kinds of pressure vessels. We offer different kinds of pin tubes, H-fin tube exhaust gas boilers and pressure vessels. We are an ISO 9001 and ISO 14001 certified company. Heat recovery steam generator boilers are specialized types of boilers that are used in combined cycle power plants. These boilers are designed to recover the waste heat that is generated by a gas turbine, and use it to produce steam for use in a steam turbine. The steam produced by the HRSG boiler is used to generate additional electricity, making combined cycle power plants a highly efficient method of generating electricity.