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Air inlet used for 600MW circulating fluidized bed fan

A circulating fluidized bed and air inlet technology, which is applied in the field of air inlet, can solve the problems of easy formation of vortex area, no guide vanes, and no uniform velocity field at the impeller inlet, so as to reduce return loss, uniform velocity field, and improve efficiency Effect

Active Publication Date: 2013-05-08
NANTONG DART POLLRICH FAN
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AI Technical Summary

Problems solved by technology

[0003] Ordinary air inlets have some problems in technology and products: without guide vanes, the efficiency of the fan cannot be improved; there is no uniform velocity field at the impeller inlet, which is easy to form a vortex area; the air inlet is integral, and some large air inlets are in Inconvenient for transportation, installation and disassembly

Method used

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  • Air inlet used for 600MW circulating fluidized bed fan
  • Air inlet used for 600MW circulating fluidized bed fan

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing.

[0015] Such as figure 1 , 2 As shown, an air inlet for a 600MW circulating fluidized bed fan includes a shaft sleeve 1 in the middle of the air inlet, an air duct 2 installed on the periphery of the shaft sleeve 1, a Huff connecting flat steel 3, and a first flange 4. A rectifier 5, a baffle plate 6, a retaining ring 7, and a second flange 8 are arranged in sequence behind the air inlet, and a reinforcing rib 9 and a deflector 10 are arranged on the air cylinder 2, and the shaft sleeve 1 is coaxially fixedly connected with the air cylinder 2, the first flange 4 is fixedly connected with the air cylinder 2 and the half steel 3, the second flange 8 is fixedly connected with the half steel 3 and the rectifier 5, and the reinforcing rib 9 is The radial arrangement is fixed, the retaining ring 7 is fixed on the baffle plate 6, the deflector 10 is welded with the shaft sleeve 1...

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Abstract

The invention discloses an air inlet used for a 600MW circulating fluidized bed fan. The air inlet comprises a shaft sleeve, an air barrel, Hough connecting flat steel, a first flange, a rectifying barrel, a retaining plate, a retaining ring and a second flange, and the structure of the air inlet is conically arc-shaped, so that incoming air flow loss is reduced; the air barrel is conical, the cone top is an air incoming face, the cone bottom is an air outgoing face, and a guide blade is additionally arranged on the air outgoing face, so that incoming air turbulence and vibration caused by the turbulence are eliminated, backflow loss of the fan is reduced, and efficiency of the fan is improved.

Description

technical field [0001] The invention relates to the field of circulating fluidized bed fans, in particular to an air inlet for a 600MW circulating fluidized bed fan. Background technique [0002] The air inlet is an important part of the fan equipment. Its function is to ensure that the air flow enters the inlet section of the impeller evenly, reduce the flow loss and improve the efficiency of the fan. Ordinary air inlets include flanges and air ducts. [0003] Ordinary air inlets have some problems in technology and products: without guide vanes, the efficiency of the fan cannot be improved; there is no uniform velocity field at the impeller inlet, which is easy to form a vortex area; the air inlet is integral, and some large air inlets are in It is inconvenient to transport, install and disassemble. Contents of the invention [0004] Purpose of the invention: In order to overcome the shortcomings of the prior art that there is no uniform velocity field at the inlet of ...

Claims

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Application Information

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IPC IPC(8): F04D29/40
Inventor 周淑云
Owner NANTONG DART POLLRICH FAN
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