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A non-uniform falling film tube, unit and device applied to falling film dust removal

A dust removal device and non-uniform technology, applied in the direction of using liquid separation agent, chemical instruments and methods, separation methods, etc., can solve problems such as poor economy, high energy consumption, and mist entrainment, so as to reduce energy consumption and water consumption , the effect of prolonging the flow distance

Active Publication Date: 2021-03-30
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention primarily solves the technical problems of high energy consumption and poor economic efficiency of traditional falling film dedusting devices, and at the same time it is easy to generate mist entrainment, and provides a non-uniform falling film tube applied to falling film dedusting

Method used

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  • A non-uniform falling film tube, unit and device applied to falling film dust removal
  • A non-uniform falling film tube, unit and device applied to falling film dust removal
  • A non-uniform falling film tube, unit and device applied to falling film dust removal

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Experimental program
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Embodiment 1

[0083] refer to Figure 1~3, this embodiment provides a non-uniform falling film tube for falling film dedusting, which includes a round tube body 11 and a flow limiting groove 12 on the round tube body 11 . The intended pipe diameter and pipe length of the circular pipe body 11 are 2-5 mm and 200-500 mm, respectively. The flow limiting groove 12 includes a bottom surface 1201 and a side surface 1202 . In the same cross-section: the distances between the lowest point and the highest point on the bottom surface 1201 and the sideline of the section circle 1101 in the radial direction are 0.3-5.9mm and 0.1-1mm respectively; The groove opening angle 1203 is 30-210°; the angle 1204 between the bottom surface 1201 and the side surface 1202 is 30-150°. As a preferred technical solution of this embodiment, the pseudo pipe diameter and pipe length of the circular pipe body 11 are respectively: 2 to 5 mm, and 300 to 400 mm; The distances are 0.3-4.4 mm and 0.1-1 mm respectively; the ...

Embodiment 2

[0087] refer to figure 2 , the present embodiment 2 is basically the same as embodiment 1 in technical scheme, and the only difference is that: the shape of the bottom surface 1201 of the restrictor tank is a plane, the intended pipe diameter of the round pipe body 11 is 5 mm, and the pipe length of the round pipe body 11 is 300mm, the slotting angle 1203 is 60°, the angle 1204 between the side surface 1202 and the bottom surface 1201 is 90°, and the radial distances between the lowest point and the highest point on the bottom surface 1201 and the sideline of the cross section 1101 are 1.1mm and 0.4mm respectively.

Embodiment 3

[0089] Embodiment 3 is basically the same as Embodiment 1 in terms of technical solution, the only difference is that the bottom surface 1201 of the flow limiting groove is an arc-shaped surface matching the round pipe body 11, and the intended pipe diameter of the round pipe body 11 is 4 mm. , the pipe length of the circular pipe body 11 is 400mm, the slotting angle 1203 is 120°, the angle 1204 between the side surface 1202 and the cut surface at the bottom surface 1201 is 90°, the lowest point and the highest point on the bottom surface 1201 and the side line of the cross section 1101 are in diameter The upward distance is the same, which is the depth of the flow-limiting groove, which is 0.5 mm. There are multiple flow-limiting grooves 12 on the non-uniform falling film tube.

[0090] refer to image 3 , there are 3 flow-limiting grooves on the non-uniform falling-film tube in this embodiment. Such a structure ensures the stability of the liquid film in the flow-limiting gr...

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PUM

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Abstract

The invention discloses an uneven falling film tube applied to falling film dust removal, an uneven falling film unit and an uneven falling film device. The falling film tube comprises a circular tubebody and a flow limiting groove located in the circular tube body; and a radial distance from the lowest point of the bottom surface of the flow limiting groove to the round edge line of the cross section is 0.3-5.9 mm, and a radial distance from the highest point of the bottom surface of the flow limiting groove to the round edge line of the cross section is 0.1-1 mm, and the grooving angle of the flow limiting groove is 30-210 DEG. The unit comprises distribution plates and the uneven falling film tube; and the distribution plates comprise a top distribution plate and a bottom distributionplate. The device comprises the unit and a flow guide channel; a plurality of the units are communicated in a crossed manner through the flow guide channel; the bottom distribution plate comprises a second through hole; and the center of the second through hole is located in the geometric center of a triangle formed by adjacent first through holes. The water consumption is effectively reduced, sothat the energy consumption for circularly conveying water is reduced; the arrangement of the flow limiting groove avoids the arrangement of excessive liquid films; and a stable liquid film is formedunder the constraint of the flow limiting groove, so that a high gas speed can be borne, and the entrainment phenomenon is not prone to occurring.

Description

technical field [0001] The invention relates to the technical field of washing and dedusting, and more particularly relates to a non-uniform falling film pipe, unit and device applied to falling film dedusting. Background technique [0002] In recent years, with the rapid growth of the national economy, the society has paid more and more attention to atmospheric environmental issues. A large part of the dust particles in the atmosphere comes from metallurgical steelmaking electric furnaces and boilers fueled by raw coal. The exhaust pollutants emitted by these furnaces cause great harm to the surrounding environment. The state has established increasingly stringent emission standards for industrial exhaust emissions. On July 18, 2011, the Ministry of Environmental Protection of China and the General Administration of Quality Supervision, Inspection and Quarantine jointly issued the latest "Emission Standards for Air Pollutants from Thermal Power Plants (GB13223-2011) 》 poin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D47/00
CPCB01D47/00
Inventor 余徽刘泽坤魏文韫熊国栋熊波杨雅琪
Owner SICHUAN UNIV