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Online descaling device for fan

A fan and solenoid valve technology, which is applied to components, mechanical equipment, machines/engines, etc. of pumping devices for elastic fluids, can solve the problem of inability to completely cover the inside of the fan, the inability to completely solve the fouling of the fan, and the easy fouling of the nozzle Blockage and other problems, to ensure long-term reliable operation, high power, and prevent the growth of scale

Pending Publication Date: 2020-05-12
NANJING CHANGRONG ACOUSTIC INC +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the dead zone in the coverage of the nozzle, the inside of the fan cannot be completely covered, and the nozzle is also prone to fouling and clogging in the flue gas, resulting in uneven flushing, requiring regular maintenance, and the water flow of the nozzle is under pressure. In order to protect the fan, it cannot Periodically descale the fans
Due to the above defects in online water flushing, regular cleaning and maintenance, as well as shutdown flushing and other measures are required, which can only be alleviated to a certain extent, and cannot completely solve the problem of fan fouling

Method used

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  • Online descaling device for fan
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Embodiment 1

[0015] Such as figure 1 As shown, the fan online descaling device installed in the converter dust removal system of the steel plant provided in this embodiment includes: a filter 1, a pressure reducing valve 2, a pressure switch 3, a first solenoid valve 4, and a metal hose 5 , Acoustic wave generator 6, second solenoid valve 7, horn 8, controller 11. The online pipeline 9 of the converter dust removal system is connected to the air inlet of the fan 10, the filter 1, the pressure reducing valve 2, the pressure switch 3, the first solenoid valve 4, the metal hose 5, the acoustic wave generator 6, the second solenoid valve 7, The horns 8 are arranged and connected in sequence, and are connected by flanges of compressed air pipelines. The horns 8 are welded on the online pipeline 9 and face the inside of the online pipeline 9 . The controller 11 is respectively connected with the pressure switch 3 , the first solenoid valve 4 , the sound wave generator 6 and the second solenoid ...

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Abstract

The invention discloses an online descaling device for a fan. The device comprises sound wave equipment arranged on an on-line pipeline connected with the fan, the sound wave equipment comprises a pressure reducing valve, a pressure switch, a first electromagnetic valve, a sound wave generator, a second electromagnetic valve and a horn which are sequentially connected, the horn is arranged on theon-line pipeline and faces the interior of the on-line pipeline. According to the online descaling device for the fan, the device have the characteristics of wide frequency band, high power and no action dead zone, and various scales at all positions in the fan can be effectively removed.

Description

technical field [0001] The invention relates to a descaling device, in particular to an online descaling device for a fan. Background technique [0002] The fan is a driven fluid machine that converts electrical energy into mechanical energy, and generates pressure through the rotation of the impeller to transport gas. It is widely used for ventilation and drafting of industrial flue gas such as boilers and industrial furnaces. [0003] In order to meet the policy requirements of flue gas emission, industrial flue gas after dedusting usually contains more water and soot. The moisture in the flue gas keeps the impeller in a wet state, and the salts in the sediment attached to the blade dissolve in the water film, which chemically corrodes the surface of the blade and gradually infiltrates inward, deepening the corrosion pit on the surface of the blade and depositing The dirt that has come down is "taken root" in the pit and is more firm. With the flow of gas, the tiny parti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/70
CPCF04D29/701
Inventor 刘宇清张荣初储昊
Owner NANJING CHANGRONG ACOUSTIC INC
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