Draught fan for conveying high-temperature smoke

A technology of high-temperature flue gas and induced draft fan, which is applied to the components of pumping devices for elastic fluids, mechanical equipment, machines/engines, etc. It can solve problems such as potential safety hazards, burnt wires, and motor damage, and avoid potential safety hazards , avoid the effect of overheating and short circuit

Inactive Publication Date: 2012-11-14
SUZHOU TAIHU FAN MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for some induced draft fans that deliver high-temperature flue gas, the heat of the high-temperature flue gas will be transmitted to the inside of the motor through the output shaft

Method used

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  • Draught fan for conveying high-temperature smoke
  • Draught fan for conveying high-temperature smoke
  • Draught fan for conveying high-temperature smoke

Examples

Experimental program
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Example Embodiment

[0016] The present invention will be described below with reference to the drawings.

[0017] As attached figure 1 An induced draft fan for conveying high-temperature flue gas according to the present invention shown includes an induced draft fan housing 1, an impeller (not shown in the figure), and a motor 2. The output shaft 3 of the motor 2 and the induced draft fan The impeller in the housing 1 is connected, the motor housing 4 is provided with a first cooling water cavity 5; the induced draft fan housing 1 and the motor housing 4 are provided with a motor output shaft sheath 6; The motor output shaft sheath 6 is provided with a second cooling water cavity 7; the first cooling water cavity 5 communicates with the second cooling water cavity 7; the first cooling water cavity 5 is provided with a temperature sensor 8 and a cooling 9; the motor housing 4 is provided with a first water inlet 10 and a first water outlet 11; the first water inlet 10 and the first water outlet 11 ar...

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PUM

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Abstract

The invention discloses a draught fan for conveying high-temperature smoke. The draught fan comprises a shell of the draught fan, an impeller and a motor, wherein an output shaft of the motor is connected with the impeller in the shell of the draught fan, a first cooling water cavity is arranged in a shell of the motor; a protecting bush of the output shaft of the motor is arranged between the shell of the draught fan and the shell of the motor; a second cooling water cavity is arranged in the protecting bush of the output shaft of the motor; and the first cooling water cavity and the second cooling cavity are communicated with each other. According to the draught fan for conveying high-temperature smoke, when the heat of the high-temperature smoke is transferred by the output shaft of the motor, the first cooling water cavity and the second cooling water cavity can absorb the heat of the high-temperature smoke, so that the heat of the high-temperature smoke can not be transferred in the motor easily, so that the damage of the motor due to overhigh temperature can be avoided, meanwhile, burnout of the motor due to too high temperature of an electric wire can be avoided, and further, the potential safety hazard is eliminated.

Description

Technical field [0001] The invention relates to an induced draft fan, in particular to an induced draft fan for conveying high-temperature flue gas. Background technique [0002] The induced draft fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It can be used to transport air and other smoke that is not spontaneously combustible, harmless to the human body, and non-corrosive to steel. However, for some induced draft fans that transport high-temperature flue gas, the heat of the high-temperature flue gas will be conducted to the inside of the motor through the output shaft of the motor, causing the motor to be damaged due to high temperature, and the motor wire will also be burned due to high temperature and short circuit. , It may also cause safety hazards. Summary of the invention [0003] In view of the above-mentioned technical problems, the purpose of the present invention is to provide an induced draft fan for c...

Claims

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Application Information

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IPC IPC(8): F04D25/06F04D29/58
Inventor 汤永明
Owner SUZHOU TAIHU FAN MFG
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