Device and method for dragging dust removal fan through industrial boiler steam

A dust removal fan and industrial boiler technology, which is applied in the direction of steam engine installation, machine/engine, process efficiency improvement, etc. It can solve the problems of reducing the service life of the system, wasting power, affecting the normal operation of the system, etc., so as to save electric energy and avoid wasting energy Effect

Inactive Publication Date: 2014-03-26
JOYI ENVIRONMENTAL PROTECTION & TECH
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Problems solved by technology

The disadvantage of this technology is that when the flue gas is insufficient, the wind turbine still needs to be driven by the motor, and the entire system is running, which

Method used

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  • Device and method for dragging dust removal fan through industrial boiler steam

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Example Embodiment

[0024] The industrial boiler steam provided in this embodiment is used to drive the device and method of the dust removal fan, so that the steelmaking can produce about 20t / h of saturated steam during normal production, and the steam drum steam pressure is 1.5MPa, and the steam generated passes through the heat accumulator The pressure is stabilized, and the external steam pressure is 1.3MPa as an example to carry out steam drag transformation on the dust removal fan in the factory.

[0025] Fan parameters: model: Y4-2x60-14 No.33.2F; flow rate: 1200000m 3 / h

[0026] Speed: 740r / min; Total pressure: 6000Pa; Rotation direction of the dust removal fan: Standing on the side of the motor, the rotation direction of the fan is counterclockwise. (Use this as the basis for the design of the reducer)

[0027] Motor parameters: speed: 745r / min; power: 2800KW; voltage: 6000V; the motor adopts high voltage frequency conversion;

[0028] In addition, a 2748KW low-pressure saturated st...

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Abstract

The invention discloses a device and method for dragging a dust removal fan through industrial boiler steam. The device mainly comprises a turbine, the dust removal fan, a motor and a speed change clutch. The turbine is connected with an input shaft coupler of a transmission; the clutch is arranged at the low-speed end of the transmission, the input end of the clutch is connected with a large gear of the transmission, the output end of the clutch is connected with an output shaft, and the output shaft is connected with the dust removal fan through an output shaft coupler. According to the device and method for dragging the dust removal fan through the industrial boiler steam, steam of waste heat of a boiler is used for driving the fan to remove dust, when the steam is insufficient, automatic supplement is conducted through the motor, the phenomenon that the surplus steam is diffused, so that energy is wasted and environment is polluted is avoided, a large amount of electric power is saved, and the benefits of energy conservation, emission reduction and environmental protection are achieved. In addition, when any of the turbine or the motor breaks down, normal operation of the dust removal fan and normal technological production are not influenced.

Description

technical field [0001] The invention relates to the field of energy saving of industrial boilers, in particular to a device and method for driving a dust removal fan by industrial boiler steam. Background technique [0002] In my country, the utilization of waste heat from high-temperature waste gas is relatively good, such as waste heat recovery from coke CDQ, sensible heat recovery from sinter, and blast furnace gas waste pressure turbine power generation. The recycling rate of waste heat from medium and low temperature exhaust gas is relatively low. Pure low temperature waste heat power generation technology can make full use of waste heat from the iron and steel industry, and is currently a key development direction in China. Pure low-temperature waste heat power generation technology uses water as the working medium, and it is difficult to recover the heat of flue gas below 300 °C. The traditional waste heat power generation system converts thermal energy into electric...

Claims

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Application Information

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IPC IPC(8): F27D17/00F01K27/00
CPCY02P10/25
Inventor 张驰刘海芳王凯
Owner JOYI ENVIRONMENTAL PROTECTION & TECH
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