Large-space dirt removal device with gas-sound complex fields uniformly distributed and dirt removal method of large-space dirt removal device

Abstract

The invention discloses a large-space dirt removal device with gas-sound complex fields uniformly distributed and a dirt removal method of the large-space dirt removal device. The dirt removal device comprises a device inlet, a gas-sound field uniform-distribution space, sound wave dust blowing devices, a dirt removal space and a device outlet. The gas-sound field uniform-distribution space is arranged behind the device inlet and internally provided with the sound wave dust blowing devices. The dirt removal space is arranged behind the gas-sound field uniform-distribution space. The device outlet is formed behind the dirt removal space. A gas-sound flow guide plate is arranged behind the sound wave dust blowing devices in the gas-sound field uniform-distribution space. The sound production directions of the sound wave dust blowing devices face the gas-sound flow guide plate. The dirt removal method includes the steps that after air flow is introduced into the device, the air flow is uniformly guided to form uniform air flow, then the uniform air flow and sound waves produced by the sound wave dust blowing devices are uniformized in the gas-sound field uniform-distribution space, then are uniformized and rectified through the gas-sound flow guide plate and then enter the dirt removal space, dirt removal is conducted on the device in the dirt removal space, and meanwhile local serious dirt accumulation can be prevented effectively.

Description

technical field [0001] The invention relates to a large-space descaling device and a descaling method with an aeroacoustic composite field uniform distribution and belongs to the field of environmental protection equipment. Background technique [0002] With the increasingly stringent energy conservation and emission reduction standards, the energy conservation and emission reduction work of large thermal power units has been paid more and more attention. The boiler is the core equipment of the thermal power station and one of the key links in the energy conversion of the thermal power station. The thermal efficiency of the boiler directly affects the fuel utilization rate of the thermal power station. During the production and operation of coal-fired boilers, the problem of fouling on the heating surfaces (water walls, superheaters, economizers, preheaters) and flue ducts has long plagued power production, and the thermal efficiency of coal-fired boilers cannot reach impor...

AI Technical Summary

Problems solved by technology

[0004] There are many unsolvable problems in the steam sootblower: it is easy to cause the sootblower to be stuck in the furnace during operation, resulting in mechanical jamming, high failure rate, short service life, high energy consumption, easy to cause pipe burst accidents, and common air leakage; The moisture content in the flue gas is high, the dew point of the flue gas is high; the operating cost is high, the cost of boiler feed water and water treatment is high, and the workload of repair and maintenance is large; Inner heating surface wear

Due to the limited sound energy of the traditional sonic soot blower, the sound frequency is fixed, which is very different from the natural frequency of the ash particles, and it is not suitable for the characteristics of ash accumulation. Prevents soot build-up during its soot blowing

Mechanical and electromagnetic rapping due to insufficient rapping force and easy damage to the equipment, the descaling effect is not ideal

At present, the air distribution plate generally adopts a single-layer setting, because the optimal opening ratio and the optimal hole shape are difficult to determine, so it is difficult to achieve the ideal air distribution effect

Images