Professional Water Tube Boiler , HRSG Heat Recovery Steam Generator Acid Recycling

HRSG Professional Waste Acid Recycling Boiler hrsg power plant
 

HRSG Variations

1. HRSGs can also have diverter valves to regulate the inlet flow into the HRSG. This allows the gas turbine to continue to operate when there is no steam demand or if the HRSG needs to be taken offline.

2. Emissions controls may also be located in the HRSG. Some may contain a Selective Catalytic Reduction system to reduce nitrogen oxides (a large contributor to the formation of smog and acid rain) and/or a catalyst to remove carbon monoxide. The inclusion of an SCR dramatically affects the layout of the HRSG. NOx catalyst performs best in temperatures between 650 °F (340 °C) and 750 °F (400 °C).

3. This usually means that the evaporator section of the HRSG will have to be split and the SCR placed in between the two sections. Some low temperature NOx catalysts have recently come to market that allows for the SCR to be placed between the Evaporator and Economizer sections (350 °F - 500 °F (175 °C - 260 °C)).

Waste Heat Recovery Steam Product Description
 
1. HRSGs consist of four major components: the economizer, evaporator, superheater and water preheater[clarification needed]. The different components are put together to meet the operating requirements of the unit. See the attached illustration of a Modular HRSG General Arrangement.
 
2. Modular HRSGs can be categorized by a number of ways such as direction of exhaust gases flow or number of pressure levels. Based on the flow of exhaust gases, HRSGs are categorized into vertical and horizontal types. In horizontal type HRSGs, exhaust gas flows horizontally over vertical tubes whereas in vertical type HRSGs, exhaust gas flow vertically over horizontal tubes.
 
3. Based on pressure levels, HRSGs can be categorized into single pressure and multi pressure. Single pressure HRSGs have only one steam drum and steam is generated at single pressure level whereas multi pressure HRSGs employ two (double pressure) or three (triple pressure) steam drums. As such triple pressure HRSGs consist of three sections: an LP (low pressure) section, a reheat/IP (intermediate pressure) section, and an HP (high pressure) section.
 
 Features
 
1. Vertical arrangement, components are compact in structure.
2. Less floor space, save investment in civil engineering.
3. Steel tube economizer, high mechanism strength, impact resistance.
4. Strong overload adaptability, system arrangement and operation is easy.
5. Automatic acoustic wave soot blower, effectively reduce fly ash pollutant.
6. Two-stage air and solid separation based on inertial separation principle, release environment pollution.
 
Technical Parameter