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Water-cooled or air-cooled high-temperature horizontal cyclone separator of circulating fluidized bed with accelerating section

A technology of cyclone separator and circulating fluidized bed, which is applied in the direction of the device whose axial direction of the swirl can be reversed, the swirl device, etc., can solve the problems of complex structure, large volume of separator, high cost, etc., and achieve a wide range of applications , The overall arrangement is compact and the cost is low

Inactive Publication Date: 2011-04-06
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a water-cooled or steam-cooled high-temperature horizontal cyclone separator applied to a circulating fluidized bed with an acceleration section, so as to solve the problems of large volume, complex structure and high cost of existing separators

Method used

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  • Water-cooled or air-cooled high-temperature horizontal cyclone separator of circulating fluidized bed with accelerating section
  • Water-cooled or air-cooled high-temperature horizontal cyclone separator of circulating fluidized bed with accelerating section
  • Water-cooled or air-cooled high-temperature horizontal cyclone separator of circulating fluidized bed with accelerating section

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specific Embodiment approach 1

[0015] Embodiment 1: Combining Figure 1-Figure 7Describing this embodiment, the water-cooled high-temperature horizontal cyclone 20 with acceleration section described in this embodiment is composed of at least one water-cooled separation chamber 20-16, at least two first exhaust pipes 20-2, and a plurality of membrane-type water cooling walls. The upper header 20-4, the first annular header 20-5 and the front and rear wall membrane water-cooled wall collection upper header 38 are composed of the upper header 38; the steam-cooled high-temperature horizontal cyclone 50 with acceleration section is composed of at least one steam-cooled separation A chamber 50-1, at least two second exhaust pipes 50-2, a plurality of upper header boxes 50-3 for membrane-type steam cooling walls, a second annular header box 50-4 and a second upper header box 50-5 are composed; The water-cooled separation chamber 20-16 is composed of a first left membrane type water-cooling wall 20-3, a first righ...

specific Embodiment approach 2

[0018] Specific implementation mode 2: Combining image 3 Illustrating this embodiment, the first left membrane-type water-cooling wall 20-3, the first right-membrane-type water-cooling wall 20-11 and the arc-shaped membrane-type water-cooling wall 20-1 described in this embodiment are all surface-covered, refractory and wear-resistant casting The membrane-type water-cooling wall of the material can prevent the internal wear of the separator and prevent coking at high temperature. The inner diameter d1=(0.75-1.0)R1 of the first exhaust pipe 20-2 of the present embodiment, the height h1=(0.5-0.75)R1 of the first exhaust pipe 20-2, the first exhaust pipe 20-2 The distance L1=(0.75-1.0) R1 from the center of the first acceleration section 20-12 to the first outlet end 20-15, R1 is the distance between the center of the first exhaust pipe 20-2 and the arc-shaped membrane water cooling wall 20 -1 Horizontal distance from the inner surface. In this way, the separation efficiency r...

specific Embodiment approach 3

[0019] Specific implementation three: combination Figure 7 Illustrating this embodiment, the first left membrane type steam cooling wall 50-6, the first right membrane type steam cooling wall 50-7 and the arc-shaped membrane type steam cooling wall 50-8 described in this embodiment are all surface-covered and refractory The membrane-type steam-cooling wall of the wear-resistant castable can prevent the internal wear of the separator and prevent coking at high temperature. In this embodiment, the inner diameter d2=(0.75-1.0)R2 of the second exhaust pipe 50-2, the height h2=(0.5-0.75)R2 of the second exhaust pipe 50-2, and the second exhaust pipe 50 The distance between the center of -2 and the second outlet end 50-11 of the second acceleration section 50-9 L2=(0.75-1.0) R2, R2 is the distance between the center of the second exhaust pipe 50-2 and the arc-shaped membrane steam The horizontal distance of the inner surface of the cold wall 50-8. In this way, the separation effi...

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Abstract

A water-cooled or air-cooled high-temperature horizontal cyclone separator of a circulating fluidized bed with an accelerating section relates to a water-cooled or air-cooled high-temperature horizontal cyclone separator. The invention aims to solve the problem that the separator of the existing circulating fluidized bed boiler has large volume, complicated structure and high production cost. In the water-cooled high-temperature horizontal cyclone separator, a first left membrane wall and a right membrane wall are connected with a circular arc membrane wall and the outlet end of a first accelerating section, the inlet end of the first accelerating section is connected with a hearth, the first left and right membrane walls are provided with a first exhaust pipe, the upper and lower ends ofthe first left membrane wall and the upper and lower ends of the first right membrane wall are communicated with a membrane wall upper header and a first annular header, the upper end of the circulararc membrane wall is communicated with a front / rear wall membrane wall collection upper header, the lower end is communicated with the first annular header; and the structure difference between the water-cooled high-temperature horizontal cyclone separator and the air-cooled high-temperature horizontal cyclone separator is that the membrane wall is changed to the air-cooled water wall. The invention has simple and compact structure and high separation efficiency, and can be used in large-size or medium-size circulating fluidized bed boilers.

Description

technical field [0001] The invention relates to a water-cooled or steam-cooled high temperature horizontal cyclone separator. Background technique [0002] In the prior art, most of the cyclone separators used in circulating fluidized bed boilers are vertical adiabatic cyclone separators. . Due to its high separation efficiency, simple structure and stable performance, this kind of separator has been widely used in circulating fluidized bed boilers and operates well. However, there are also some problems, mainly including: large volume and large amount of steel; excessively thick refractory and thermal insulation materials; long start-up time and large heat loss; easy coking in the return system; easy cracking and peeling of the refractory layer; and flue arrangement It is relatively complicated, and the resistance of flue gas is high along the way. [0003] In order to solve the problem of excessively thick refractory materials and thermal insulation materials for high t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B04C5/00B04C5/02
Inventor 别如山宋兴飞姜信辉张缦董凯
Owner HARBIN INST OF TECH