31results about How to "Solve the problem of high temperature corrosion" patented technology

The invention provides a waste incineration power generation device for improving the main steam parameters, which includes: a waste heat boiler, which is provided with a low-temperature heating surface to heat feed water; a steam drum, through which the feed water is separated into saturated water and saturated steam, and the saturated water is returned to the waste heat boiler The low-temperature heating surface of the coal-fired boiler is equipped with a high-temperature heating surface, and the saturated water vapor separated from the steam drum is superheated on the high-temperature heating surface; for the steam turbine, the superheated main steam enters the high-pressure cylinder to do work and drives the generator to generate electricity, and the steam discharged from the high-pressure cylinder The exhaust steam returns to the high-temperature heating surface of the coal-fired boiler for reheating. The reheated steam enters the low-pressure cylinder to do work and drives the generator to generate electricity. The exhaust steam discharged from the low-pressure cylinder enters the feed water circulation unit to be converted into feed water again. According to the waste incineration power generation device for increasing the main steam parameters of the present invention, the main steam parameters of the waste incineration power generation can be improved, and the intermediate reheating technology is used, thereby increasing the power generation of the steam turbine and the economic benefits of the incineration power plant.

The invention discloses a scientific investigation ship with an anti-corrosion and noise-reducing chimney, which includes a hull and a chimney for discharging exhaust gas arranged on the hull, and a conversion device arranged at the central axis of the chimney for converting the kinetic energy of the exhaust gas into electric energy device, an internal cooling device installed on the inner wall of the chimney to reduce the internal temperature of the chimney and smoke, a sound-absorbing device used to reduce the noise of the chimney, an external cooling device installed on the outer wall of the chimney, and an insulation layer installed on the surface of the external cooling device. For the circulation purification device and the controller that purify and circulate the cooling liquid, the exhaust gas generated by the main engine enters the chimney through the exhaust pipe, and the high-speed exhaust gas pushes the conversion device to work, while the noise reduction device performs noise reduction. A first sensor that detects temperature. The invention effectively reduces the internal and external temperatures of the chimney through multi-stage cooling, and performs visual real-time control and adjustment of the temperature of the chimney through a detection and control system, thereby effectively solving the problem of high-temperature corrosion.

The invention discloses a novel anti-corrosion and noise-reducing chimney for ships, which includes a chimney for discharging exhaust gas, a conversion device arranged at the central axis of the chimney for converting kinetic energy of exhaust gas into electric energy, and a conversion device arranged on the inner wall of the chimney for Internal cooling device for reducing the internal temperature and smoke of the chimney, noise reduction device for reducing the noise of the chimney, external cooling device installed on the outer wall of the chimney, heat insulation layer installed on the surface of the external cooling device, used for purifying and recycling the cooling liquid Circulation purification device and controller, the present invention effectively reduces the internal and external temperature of the chimney through multi-stage cooling, and conducts visual real-time control and adjustment of the chimney temperature through the detection and control system, effectively solving the problem of high temperature corrosion, and reducing the chimney exhaust by setting the muffler device noise, and fully recover and utilize the energy of the exhausted flue gas. By changing the coolant medium, the harmful substances and smoke in the exhaust gas can be effectively removed.

The present invention relates to a low NOx cyclone combustion equipment capable of preventing high-temperature corrosion. It is characterized by that the invented side wall OFA nozzles are respectively set on the upper portion of two side walls in the furnace cavity interior, the furnace cavity zone where the side wall OFA nozzle lower-side central powder-feeding cyclone coal powder combustor is placed is main combustion zone, the furnace cavity zone where the side wall OFA nozzle and cyclone OFA nozzle are placed is burning zone, several central powder-feeding cyclone coal powder combustors are respectively set on the front and rear walls of main combustion zone side, and the cyclone OFA nozzles are respectively set on the front and rear walls of burning zone side. When the coal powder is combusted, it can further inhibit the formation of NOx, can reduce discharge of NOx by above 80%.

A boiler hedging combustion structure, including a furnace surrounded by the left wall of the boiler, the right wall of the boiler, the front wall of the boiler and the rear wall of the boiler; the left wall burner is arranged along the height direction of the furnace on the center line of the left wall of the boiler, The center line of the right side wall of the boiler is arranged along the furnace height direction with right wall burners, several rows of front wall burners are arranged on the boiler front wall, and several rows of rear wall burners are arranged on the boiler rear wall; the left side wall of the boiler, The right side wall of the boiler, the front wall of the boiler and the rear wall of the boiler are equipped with air boxes that provide secondary air and overfired air for the furnace. This structure completely solves the problem of high-temperature corrosion of the side wall water wall without affecting the original pulverized coal combustion method.

The invention discloses a pulverized coal burner and a boiler having the same. The pulverized coal burner comprises a heat source and an internal-combustion chamber for keeping the preset excess air coefficient of an internal pulverized coal air flow, wherein the heat source is positioned in the combustion chamber, and the internal-combustion chamber has an inlet and an outlet; and the heat source can light pulverized coal in the internal-combustion chamber and make the pulverized coal undergo reducing burning in the internal-combustion chamber; and the internal-combustion chamber comprises ametal outer cylinder and a ceramic liner. The ceramic material for making the liner of the pulverized coal burner has excellent high-temperature performance, and can retain corresponding mechanical performance under a continuous high-temperature condition; and the ceramic material has high thermal-insulation effect and can keep a higher temperature in the internal-combustion chamber of the pulverized coal burner.

The invention discloses an urban garbage pyrolysis gasification coupled coal-fired power station power generation system, including a boiler, which drives a generator to generate electricity through a steam turbine, and is characterized in that it also includes a garbage low-temperature pyrolysis system and a garbage drying system. The invention provides a power generation system coupled with pyrolysis and gasification of municipal solid waste, which uses a low-temperature pyrolysis system to perform low-temperature pyrolysis on municipal solid waste, and can volatilize and remove HCl in municipal solid waste. Reduce the generation of dioxin from the source, and at the same time avoid the high-temperature corrosion of the heating surface of the coal-fired boiler caused by the HCl produced in the process of municipal solid waste incineration, and ensure the safety of the heating surface of the large-scale coal-fired unit.