Waste heat recovery boiler
- Heat power
Order on demand
- Energy
Waste heat gas
Introduction
| Heat power | Order on demand |
| Energy | Waste heat gas |
Unlike conventional boilers, there is no combustion process in a waste heat boiler, and there is no combustion-related equipment, which is essentially just a heat exchanger.
It cooperates with the gas turbine, the exhaust of the gas turbine (temperature is about 500~600 °C) enters the waste heat boiler, heats the water in the heating surface, and the water absorbs heat into high temperature and high pressure steam and then enters the steam turbine to complete the combined cycle.
Waste heat boiler refers to a boiler that uses the waste heat in the exhaust gas, waste or waste liquid in various industrial processes and the heat generated by the combustion of its combustible substances to heat water to a certain temperature. With waste heat recovery, hot water, steam or organic heat carriers can be produced for use in other sections.
Source of waste heat
(1) High temperature flue gas waste heat: a common form in the market, characterized by large output, concentrated production points, strong continuity, easy to recover and use, take away heat accounted for 40~50% of the total heat, recovered heat can be used for production or domestic heat and power generation.
(2) High temperature slag waste heat: such as blast furnace slag, converter slag, electric furnace slag, etc., the slag temperature is above 1000 °C, and the heat taken away accounts for 20% of the total heat.
(3) Waste heat of high-temperature products: such as coke oven coke, steel ingot billet, high-temperature forgings, etc., the temperature is very high, containing a lot of waste heat.
(4) Combustible waste gas and waste liquid waste heat: such as blast furnace gas, catalytic cracking regeneration waste gas of refineries, black liquor of paper mills, etc.
(5) Chemical reaction waste heat: such as metallurgy, sulfuric acid, phosphoric acid, fertilizer, paint and other industrial sectors will produce a large amount of chemical reaction waste heat.
(6) Waste heat of cooling medium: such as a large amount of cooling water discharged from cooling devices such as water jackets of industrial furnaces, and the steam produced by various vaporization cooling devices contain a large amount of waste heat.
They can all be used wisely.
Parameter
| Model | Back water temp. | Outlet water temp. | Shipping size（m） |
| CWDR0.3-70/95-D | 65℃ | 90℃ | 1×1×2.5 |
| CWDR0.5-70/95-D | 65℃ | 90℃ | 1.1×1.1×2.6 |
| CWDR1-70/95-D | 65℃ | 90℃ | 2.5×1.5×1.8 |
| CWDR2-70/95-D | 65℃ | 90℃ | 3.1×1.7×2.3 |
| CWDR4-70/95-D | 65℃ | 90℃ | 3.3×2.15×2.3 |
| CWDR6-70/95-D | 65℃ | 90℃ | 4.3×2.23×2.6 |
| CWDR8-70/95-D | 65℃ | 90℃ | 5×2.9×3.1 |
| CWDR10-70/95-D | 65℃ | 90℃ | 5.3×2.9×3.1 |
| CWDR20-70/95-D | 65℃ | 90℃ | 6×2.3×3.2 |
Advantages
- 1Heat transfer effect, the boiler adopts a full-membrane water-cooled wall structure, which has high heat transfer efficiency and good sealing performance, which solves the shortcomings of traditional boilers such as large air leakage, high heat dissipation loss and high system energy consumption;
- 2High efficiency characteristics, waste heat reuse, is an effective way to save energy, reduce consumption, and realize the comprehensive utilization of resources, which can not only reduce the production cost of industrial enterprises, improve the economic benefits of enterprises, but also reduce the exhaust gas temperature and dust concentration, reduce air pollution and greenhouse effect, so that enterprises can achieve resource recycling and achieve clean production;
- 3High safety, rigid beam fixed structure around the boiler membrane water wall, so that the boiler furnace has the characteristics of anti-deflagration and higher safety;
- 4Low cost, the overall structure of the boiler adopts vertical layout, the components have compact structure, flexible layout, small footprint, less infrastructure investment, and small air leakage.
