CN104815500A - Self-adaptation type floating ball demister and demisting method thereof - Google Patents

Self-adaptation type floating ball demister and demisting method thereof Download PDF

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Publication number
CN104815500A
CN104815500A CN201510163617.XA CN201510163617A CN104815500A CN 104815500 A CN104815500 A CN 104815500A CN 201510163617 A CN201510163617 A CN 201510163617A CN 104815500 A CN104815500 A CN 104815500A
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China
Prior art keywords
demister
ball float
self
demisting
floating
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Pending
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CN201510163617.XA
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Chinese (zh)
Inventor
刘定平
崔静
刘畅
夏松
周俊
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to CN201510163617.XA priority Critical patent/CN104815500A/en
Publication of CN104815500A publication Critical patent/CN104815500A/en
Pending legal-status Critical Current

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Abstract

The present invention discloses a self-adaptation type floating ball demister and a demisting method thereof. According to the self-adaptation type floating ball demister, multiple layer floating ball demisting units are arranged in the demister housing, the floating ball demisting units are separated through sieve plates, gas flow enters the demister housing from the bottom portion of the demister housing and then enters the floating ball demisting unit through the sieve plate, the accumulated floating balls in the floating ball demisting units present the floating state under the gas flow effect while the rising gas flow contacts the floating balls being in the floating state, the gas flow direction produces deflection under the effects of inertia and baffling flow, the liquid droplets and the solid particles carried in the gas flow are continuously adsorbed and aggregated by the surface of the floating balls, and the liquid droplet-removed and solid particle-removed gas flow is discharged from the top portion of the demister so as to complete the self-adaptation type demisting. According to the present invention, the floating ball adopts the polymer hollow small ball, characteristics of equipment investment reducing, demisting efficiency improving, clogging resistance, easy rinsing, strong working condition adaptability, less investment, and low operation and maintenance cost are provided, and the generation of the wet method desulfurization chimney gypsum rain is effectively reduced.

Description

A kind of self-adapting type ball float demister and defogging method thereof
Technical field
The present invention relates to demister, particularly relate to a kind of self-adapting type ball float demister and defogging method thereof.
Background technology
The demister flash distillation be widely used in the field such as chemical industry, environment takes off the processes such as mist, Oil-gas Separation, acid mist purifying.The demister used in flue gas desulphurization system is impacting type demister, in impacting type demister, drop catch by target and completed by inertial collision, directly interception and diffusion 3 kinds of mechanism.
After band shredded tobacco for water pipes gas enters demister, due to effect of inertia, flue gas flow direction changes, and the drop carried in flue gas, under centrifugal action, clashes into wall.Under the effect of sweep of gases, the liquid film on wall is collected in the flex point place be connected with next passage, formed after thicker cascade along under wall flow.In chevron mist eliminator, very tiny Particles Moving track is away from rectilinear.Therefore, flap demister is applicable to the separation of relative oversize grain, for tiny droplet particles, must apply the demister of other form.
At present, most domestic thermal power plant all adopts Limestone-gypsum Wet Flue Gas Desulfurization Process technique, accounts for more than 95% of desulphurization market share.If wet desulfurization system does not have easily to occur " gypsum rain " phenomenon during Smoke-heating device." gypsum rain " not only affects life and the production of plant area, but also can affect the life of neighbouring residential block, for environment brings adverse effect.Therefore desulphurization system takes corresponding measure to administer " gypsum rain " just to become quite important in design and running process.
The design of the demister in wet desulphurization tower not only requires to have efficient separating property, also requires lower crushing, good good antiscale property, anti-clogging, corrosion resistant, convenient cleaning and maintenance etc.Should consider with combined factors such as the designing requirement of whole desulphurization system, system operation conditions, operating flexibility, desulfurizing tower fouling, desulfurizing agent kind, the kinds of washing slurries and fire coal during design.
Summary of the invention
The object of the invention is to the shortcoming and defect overcoming above-mentioned prior art, a kind of self-adapting type ball float demister and defogging method thereof are provided.Solve traditional demister demisting efficiency low, the problems such as equipment investment is large, overhaul of the equipments is difficult, pressure drop is large.
The present invention is achieved through the following technical solutions:
A kind of self-adapting type ball float demister, is comprised demister housing 1, arranges multilayer floater shot demisting unit 3 in demister housing 1, separated between each floater shot demisting unit 3 by sieve plate 2; Each floater shot demisting unit 3 is piled up by multiple ball float and is formed.
Described ball float is hollow float.
Described sieve plate 2 is deflection plate, silk screen or perforated panel.
The top of described floater shot demisting unit 3 and/or transfer the spraying layer 5 be provided with for cleaning ball float and sieve plate 2.
Described ball float is made up of macromolecular material.
Described floating ball diameter is 50mm ~ 80mm.
Described demister housing 1 is provided with dodge gate 4 corresponding on the sidewall of floater shot demisting unit 3.
The defogging method of above-mentioned self-adapting type ball float demister is as follows:
Air-flow is by entering in demister housing 1 bottom demister housing 1, floater shot demisting unit 3 is entered through sieve plate 2, the ball float piled up in floater shot demisting unit 3 under airflow function is floating state, the air-flow meanwhile risen runs into floating ball float, under the effect of inertia and baffling, airflow direction offsets, and the drop carried in air-flow and solid particle are constantly by ball float adsorption, cohesion, and the air-flow removing drop and solid particle is discharged by demister top; Thus complete self-adapting type demist.
The present invention, relative to prior art, has following advantage and effect:
Air-flow enters in demister housing by demister housing bottom, floater shot demisting unit is entered through sieve plate, the ball float piled up in floater shot demisting unit under airflow function is floating state, the air-flow meanwhile risen runs into floating ball float, under the effect of inertia and baffling, airflow direction offsets, and the drop carried in air-flow and solid particle are constantly by ball float adsorption, cohesion, and the air-flow removing drop and solid particle is discharged by demister top; According to the size of throughput and the uniformity coefficient in flow field, ball float can move under buoyancy, and then regulates flow field, thus reaches the object in self adaptation flow field.
Ball float adopts macromolecule hollow beads, not only reduces equipment investment, and improves demisting efficiency.Demister housing is provided with dodge gate corresponding on the sidewall of floater shot demisting unit, and easy access and replacing ball float, reduce further the difficulty of maintenance, make maintenance more convenient.
The present invention has good self-adapting type, not easily blocking, easily flushing, adaptability for working condition is strong, and demisting efficiency is high, and the feature that small investment, operation and maintenance cost are low, and effectively reduce the generation of wet desulphurization chimney gypsum rain.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the present invention when adopting individual layer floater shot demisting unit.
Fig. 2 is the cross-sectional view of the present invention when adopting multilayer floater shot demisting unit.
Fig. 3 be the present invention when working ball float be in cross-sectional view that is floating, motion state.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figures 1 to 3.Self-adapting type ball float demister of the present invention, comprises demister housing 1, arranges multilayer floater shot demisting unit 3 in demister housing 1, is separated between each floater shot demisting unit 3 by sieve plate 2; Each floater shot demisting unit 3 is piled up by multiple ball float and is formed.
Described ball float is hollow float, is made up of corrosion resistant macromolecular material, and its diameter is about 50mm ~ 80mm.
Described sieve plate 2 is deflection plate, silk screen or perforated panel.
The top of described floater shot demisting unit 3 and/or transfer the spraying layer 5 be provided with for cleaning ball float and sieve plate 2.Spraying layer 5 connects water under high pressure, regularly rinses ball float and sieve plate 2.
Described demister housing 1 is provided with dodge gate 4 (employing transparent material) corresponding on the sidewall of floater shot demisting unit 3.Be convenient to observe, keep in repair and change ball float.
The defogging method of above-mentioned self-adapting type ball float demister realizes by following steps:
Air-flow is by entering in demister housing 1 bottom demister housing 1, floater shot demisting unit 3 is entered through sieve plate 2, the ball float piled up in floater shot demisting unit 3 under airflow function is floating state, the air-flow meanwhile risen runs into floating ball float, under the effect of inertia and baffling, airflow direction offsets, and the drop carried in air-flow and solid particle are constantly by ball float adsorption, cohesion, and the air-flow removing drop and solid particle is discharged by demister top; Thus complete self-adapting type demist.
This self-adapting type ball float demister, according to actual treatment exhaust gas volumn and demist requirement, can adopt one deck or multilayer floater shot demisting unit.This self-adapting type ball float demister has compared with high adaptivity, operating flexibility is large, demisting efficiency is high, device is simple, maintenance is convenient, and investment, operation and maintenance cost is low, can be good at the generation reducing gypsum rain.
As mentioned above, just the present invention can be realized preferably.
Embodiments of the present invention are not restricted to the described embodiments; other are any do not deviate from Spirit Essence of the present invention and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (8)

1. a self-adapting type ball float demister, it is characterized in that, comprise demister housing (1), multilayer floater shot demisting unit (3) is set in demister housing (1), is separated by sieve plate (2) between each floater shot demisting unit (3); Each floater shot demisting unit (3) is piled up by multiple ball float and is formed.
2. self-adapting type ball float demister according to claim 1, is characterized in that, described ball float is hollow float.
3. self-adapting type ball float demister according to claim 1, is characterized in that, described sieve plate (2) is deflection plate, silk screen or perforated panel.
4. self-adapting type ball float demister according to any one of claim 1 to 3, it is characterized in that, the top of described floater shot demisting unit (3) and/or transfer the spraying layer (5) be provided with for cleaning ball float and sieve plate (2).
5. self-adapting type ball float demister according to claim 4, it is characterized in that, described ball float is made up of macromolecular material.
6. self-adapting type ball float demister according to claim 5, is characterized in that, described floating ball diameter is 50mm ~ 80mm.
7. self-adapting type ball float demister according to claim 4, is characterized in that, the sidewall of described demister housing (1) corresponding to floater shot demisting unit (3) is provided with dodge gate (4).
8. the defogging method of self-adapting type ball float demister according to any one of claim 1 to 7, is characterized in that following steps:
Air-flow enters in demister housing (1) by demister housing (1) bottom, floater shot demisting unit (3) is entered through sieve plate (2), the ball float piled up in floater shot demisting unit (3) under airflow function is floating state, the air-flow meanwhile risen runs into floating ball float, under the effect of inertia and baffling, airflow direction offsets, the drop carried in air-flow and solid particle are constantly by ball float adsorption, cohesion, and the air-flow removing drop and solid particle is discharged by demister top; Thus complete self-adapting type demist.
CN201510163617.XA 2015-04-08 2015-04-08 Self-adaptation type floating ball demister and demisting method thereof Pending CN104815500A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105597457A (en) * 2016-03-11 2016-05-25 李志刚 Floating ball type demister
CN107243188A (en) * 2017-06-08 2017-10-13 河北唯沃环境工程科技有限公司 A kind of fine hair type spin line demister
CN107899264A (en) * 2017-11-29 2018-04-13 安徽未名科键环境有限公司 A kind of dedusting demisting white-smoke-removing integrated apparatus
CN108452593A (en) * 2018-03-05 2018-08-28 武汉科技大学 A kind of high-efficiency low-resistance fluidisation demister arrangements and its defogging method
CN108593318A (en) * 2018-03-05 2018-09-28 武汉科技大学 A kind of fluidisation demister device for detecting performance
CN108854401A (en) * 2018-07-26 2018-11-23 武汉科技大学 A kind of anti-clogging effective fluidized demister
CN112387080A (en) * 2019-08-16 2021-02-23 阿特拉斯·科普柯空气动力股份有限公司 Dryer for compressed gas and compressor installation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2432455Y (en) * 2000-08-04 2001-05-30 国家电力公司电力环境保护研究所 Environmental protection dust-removing defroster
CN201389393Y (en) * 2009-03-20 2010-01-27 东莞市华联环保工程有限公司 Defogging device of spray tower
CN204582864U (en) * 2015-04-08 2015-08-26 华南理工大学 A kind of self-adapting type ball float demister

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2432455Y (en) * 2000-08-04 2001-05-30 国家电力公司电力环境保护研究所 Environmental protection dust-removing defroster
CN201389393Y (en) * 2009-03-20 2010-01-27 东莞市华联环保工程有限公司 Defogging device of spray tower
CN204582864U (en) * 2015-04-08 2015-08-26 华南理工大学 A kind of self-adapting type ball float demister

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105597457A (en) * 2016-03-11 2016-05-25 李志刚 Floating ball type demister
CN107243188A (en) * 2017-06-08 2017-10-13 河北唯沃环境工程科技有限公司 A kind of fine hair type spin line demister
CN107899264A (en) * 2017-11-29 2018-04-13 安徽未名科键环境有限公司 A kind of dedusting demisting white-smoke-removing integrated apparatus
CN108452593A (en) * 2018-03-05 2018-08-28 武汉科技大学 A kind of high-efficiency low-resistance fluidisation demister arrangements and its defogging method
CN108593318A (en) * 2018-03-05 2018-09-28 武汉科技大学 A kind of fluidisation demister device for detecting performance
CN108452593B (en) * 2018-03-05 2023-11-17 国网浙江省电力有限公司台州供电公司 Low-resistance high-efficiency fluidization demister device and demisting method thereof
CN108593318B (en) * 2018-03-05 2024-04-12 深圳万知达企业管理有限公司 Fluidization demister performance detection device
CN108854401A (en) * 2018-07-26 2018-11-23 武汉科技大学 A kind of anti-clogging effective fluidized demister
CN108854401B (en) * 2018-07-26 2024-02-02 迈威尔流体技术(上海)有限公司 Anti-blocking efficient fluidization demister
CN112387080A (en) * 2019-08-16 2021-02-23 阿特拉斯·科普柯空气动力股份有限公司 Dryer for compressed gas and compressor installation

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Application publication date: 20150805