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Centrifugal fan

A centrifugal fan and body technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems affecting the installation efficiency of fans, troublesome connection methods, etc., and achieve the effect of convenient connection, convenient operation and quick connection

Pending Publication Date: 2021-08-13
张海霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the daily use of the centrifugal fan, it is necessary to connect the pipeline at the air outlet of the centrifugal fan, so that the gas with kinetic energy and pressure energy can be discharged from the fan. The flanges are connected together. This connection method is very troublesome and affects the installation efficiency of the fan.

Method used

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Examples

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Embodiment Construction

[0019] see Figure 1-9 As shown, a centrifugal fan includes a body 1, the body 1 is provided with a chamber 1a with an opening at the right end, the right end of the body 1 is fixedly provided with an end cover 1c, and a rotating shaft 300 is rotatably connected to the end cover 1c. , the left end of the rotating shaft 300 extends into the chamber 1a and is fixedly provided with an impeller 200 , the left end of the body 1 is provided with an air inlet pipe 100 coaxial with the rotating shaft 300 , and the outer side of the body 1 is along the diameter of the impeller 200 An air outlet pipe 1b is provided to the direction. When the centrifugal fan is in use, the air outlet pipe 1b is connected with a pipeline assembly, and the pipeline includes a flange 5; the opening of the air outlet pipe 1b is provided with a ring Cutting groove 11, the flange 5 is provided with an annular protrusion 51 extending into the annular cutting groove 11; the outer circumference of the air outlet ...

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Abstract

The invention discloses a centrifugal fan. The centrifugal fan comprises a machine body, a cavity is formed in the machine body, an end cover is fixedly arranged at the right end of the machine body, a rotating shaft is rotationally connected into the end cover, an impeller is fixedly arranged at the left end of the rotating shaft, an air inlet pipe is arranged at the left end of the machine body, an air outlet pipe is arranged on the outer side of the machine body, the air outlet pipe is connected with a pipeline assembly, and a pipeline comprises a flange; an annular cutting groove is formed in an opening of the air outlet pipe, and an annular protruding block is arranged on the flange; a first sliding hole and a second sliding hole are formed in the outer side of the circumference of the air outlet pipe, a positioning hole is formed in the annular protruding block in the radial direction, a lock pin is slidably connected into the first sliding hole, a first spring is arranged in the first sliding hole, and the lock pin is provided with a positioning rod; and a positioning assembly connected with the lock pin is arranged in the air outlet pipe. The centrifugal fan is simple in structure, convenient to install and high in efficiency.

Description

technical field [0001] The invention relates to the field of fans, and more particularly relates to a centrifugal fan which is easy to connect. Background technique [0002] The centrifugal fan is a component that uses the rotation of the fan impeller to convert mechanical energy into pressure energy and kinetic energy of the gas. The gas enters the air axially through the air inlet, and the gas obtains pressure energy and kinetic energy through the rotation of the impeller, and the gas is output along the spiral shell. Then send it out from the air outlet of the casing. In the daily use of the centrifugal fan, it is necessary to connect the pipeline at the air outlet of the centrifugal fan, so that the gas with kinetic energy and pressure energy can be discharged from the fan. The flanges of the fan are connected together. This connection method is very troublesome and affects the installation efficiency of the fan. Contents of the invention [0003] The object of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/62F04D17/08
CPCF04D29/4206F04D29/626F04D17/08
Inventor 张海霞李勇赵红光
Owner 张海霞