Converging and guiding device for tube bundle dedusting and demisting

A technology of diversion device and diversion ring, which is applied to the separation of dispersed particles, chemical instruments and methods, and separation methods. Eliminate the secondary entrainment of drops and other problems, and achieve the effects of liquid separation, good effect of dust removal and fog removal, and improved effect of dust removal and fog removal

Active Publication Date: 2020-12-04
内蒙古高原蓝节能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When in use, the lower part is the diversion ring, and the upper part is the diversion ring. The diversion ring is in direct contact with the end face of the diversion ring, and the diameter of the middle connection part is the smallest to form a speed increaser. When the high-speed airflow passes, it will be difficult for the diversion ring to control the thickness of the liquid film. , The diversion ring has the problem that the captured droplets are entrained twice, which affects the effect of the dust and mist eliminator

Method used

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  • Converging and guiding device for tube bundle dedusting and demisting
  • Converging and guiding device for tube bundle dedusting and demisting
  • Converging and guiding device for tube bundle dedusting and demisting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0041] figure 2 It is a structural schematic diagram of a three-stage cyclone tube bundle dedusting and demisting cylinder structure and related confluence and diversion devices according to Embodiment 1 of the present invention.

[0042] Such as figure 2 As shown, a tube bundle cylinder 1 with openings at both ends, hollow, opening diameter D=400mm, and wall thickness 0.5cm is arranged coaxially and spaced from the bottom to the top. device, confluence diversion device 2, three-stage cyclone. The confluence and diversion device 2 is installed above the swirler 3 and is directly connected to the end face of the swirler collar.

[0043] Such as figure 2 As shown, the diversion and diversion device 2 is a hollow cylinder with openings at both ends, a reduced diameter in the middle, and a smooth inner wall. It includes a diversion ring 21, a diversion ring 22 and a speed increaser 23, and is prepared by integral molding. In this embodiment, the speed increaser 23 is a stra...

Embodiment approach 2

[0047] image 3 It is a structural schematic diagram of a three-stage cyclone tube bundle dust and mist removal cylinder and confluence and diversion device according to Embodiment 2 of the present invention. Compared with Embodiment 1, the difference of this embodiment is mainly in the structure of the diversion and diversion device 2 .

[0048] Such as image 3 As shown, the diversion ring 21 and the diversion ring 22 are asymmetric structures with respect to the speed increaser 23, the speed increaser 23 is set as a Venturi type speed increase ring with a height of 100mm, and the diversion ring 22 and the diversion ring 21 are designed asymmetrically of funnel shape. The diameter of the upper opening of the speed increasing ring is smaller than the diameter of the lower opening of the speed increasing ring. Same diameter.

[0049] Expanding the speed increaser to a 100mm Venturi type speed increase ring, in addition to better shaping the passing airflow, it can also fur...

Embodiment approach 3

[0051] Figure 4-6 It shows the structure and partially enlarged schematic diagram of a confluence and diversion device for a tube bundle dust removal and mist removal cylinder according to Embodiment 3 of the present invention. Compared with Embodiment 2, the difference of this embodiment is mainly in the structure of the confluence and diversion device 2 .

[0052] First, if Figure 4 As shown, on the inner wall of the guide ring 22, three bar-shaped guide grooves 223 are arranged evenly and at equal intervals, as Figure 5 As shown, the depth of the diversion groove is 2mm, and the cross section of the diversion groove is arc-shaped, such as Figure 6 As shown, the guide groove 223 extends from the guide ring outlet 222 on the inner wall of the guide ring 22 to the guide ring inlet 221, and continues downward along the inner wall of the diversion flow guide device 2 through the inner wall of the speed-increasing ring, The outlet port 212 of the bus ring 21 extends to the...

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Abstract

The invention relates to a converging and guiding device for tube bundle dedusting and demisting, which is mounted on the inner wall of a tube bundle cylinder and comprises a confluence ring, a flow guide ring and a speed increaser, the device is a hollow cylinder with two open ends, a reduced middle and a smooth inner wall, and the speed increaser is a speed increaser ring with the height of 10-100mm. The speed increaser is located between the confluence ring and the flow guide ring, and the speed increaser is in arc transition connection with the connection portion between the confluence ring and the flow guide ring. According to the invention, the shaping effect of the device on centrifugal air flow can be better exerted, the problems of overlarge liquid film thickness and secondary entrainment of the air flow are avoided, liquid separation is facilitated, and the dust removal and demisting effects are improved.

Description

technical field [0001] The invention belongs to the technical field of flue gas treatment, and in particular relates to a confluence and diversion device for tube bundle dust removal and mist removal in the process of boiler flue gas treatment. Background technique [0002] The tube bundle dust and mist eliminator is the key equipment in the wet desulfurization system. It is usually connected by multiple tube bundle demisters. The demister includes multi-stage cyclones and confluence diversion devices. Centrifugal movement is generated, and the confluence and diversion device can accelerate the flow rate of the airflow and control the distribution state of the airflow. The coordinated coupling of the two can realize gas-liquid separation, dust removal and mist removal of flue gas. [0003] Existing confluence and diversion devices are usually symmetrically designed through double funnel-shaped structures (see figure 1 ), the volume design of the upper and lower funnels. Wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D45/16B01D45/14B01D45/18
CPCB01D45/16B01D45/14B01D45/18Y02E30/30
Inventor 赵卫军赵鹏飞贾伟华
Owner 内蒙古高原蓝节能环保科技有限公司
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