CN204563780U - Barb demister optimized by a kind of streamlined two passage bands - Google Patents
Barb demister optimized by a kind of streamlined two passage bands Download PDFInfo
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- CN204563780U CN204563780U CN201520171555.2U CN201520171555U CN204563780U CN 204563780 U CN204563780 U CN 204563780U CN 201520171555 U CN201520171555 U CN 201520171555U CN 204563780 U CN204563780 U CN 204563780U
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- demister
- barb
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Abstract
Barb demister optimized by the streamlined two passage bands of one that the utility model discloses the demister scope belonging to wet method fume desulfurizing system.It is made up of multiple demister blade assembly, demister blade assembly is made up of the adjacent demister blade be fixedly connected with by jig between two again, every two demister blades form fluid passage, demister barb is placed in and demister import department, demister barb is made up of straightway and arc, and arc and straightway are tangential on 1/4 circular arc.The utility model structure is simple, be easy to realize, in-site installation is convenient, while guarantee demisting efficiency pressure drop minimum.
Description
Technical field
The utility model belongs to the demister scope of wet method fume desulfurizing system, and particularly barb demister optimized by the streamlined two passage bands of one.
Background technology
In wet desulfurizing process, the flue gas through absorption tower process has carried a large amount of slurry drops secretly, and flue gas flow rate is higher, and the drop amount that it carries is more.If do not remove these drops, it not only can form gypsum dirt and the corrosion of acceleration equipment because being deposited on absorption tower upstream device surface, also can affect the heat exchange efficiency of flue gas heater.If adopt flue gas wet emission method, then can cause and pollute power plant's surrounding environment because of chimney " rainfall " (discharge liquid, solid or slurry).Demister is coal-fired or key equipment in smoke of oil-fuel boiler desulphurization system, and can its performance directly has influence on wet method fume desulfurizing system (WFGD) reliability service continuously.The operation principle of WFGD is: when the gas containing mist flows through demister with certain speed, due to effect of inertia, and mist and demister blade collide and be attached on demister blade surface; Near demister blade surface, the diffusion of mist and gravitational settling make mist form larger drop and move up to demister blade turning with air-flow, owing to turning to centrifugal force and making drop increasing with the friction of demister blade and the surface tension of suction-operated and liquid, until the drop gathered arrive greatly buoyancy that the gravity that himself produces exceedes flue gas and surface tension of liquid with joint efforts time, drop is just separated from demister blade surface to get off.The structure that is folded to of demister blade adds the chance that mist is captured more, and the mist be not removed is captured through identical effect at next turning, such repeated action, thus drop entrained in removing flue gas.
Two important indicators weighing demister performance are that demister imports and exports pressure drop and demisting efficiency.Demister is imported and exported pressure drop and is shown that more greatly the power that system needs supplement is larger, and energy consumption is higher, and the pressure drop of general two-stage demister should control within 120-200Pa.Demisting efficiency lower flue gas water content is higher, and the amount of droplet deposition on upstream device surface, absorption tower then can be larger, and the hidden danger brought to equipment safety operation also can be larger.Therefore, dry state lower smoke outlet end water content should control at 75mg/Nm
3within.
Traditional streamlined two passage buckle blade critical flow velocities are higher, easy cleaning, be widely used at present, but mostly there is the problem that demisting efficiency is low or pressure drop is larger in large desulfurization equipment.
Utility model content
The purpose of this utility model is higher for streamlined two passage buckle blade critical flow velocities traditional in prior art, easy cleaning, and be widely used in large desulfurization equipment at present, but mostly there is the problem that demisting efficiency is low or pressure drop is larger, and provide a kind of streamlined two passage bands to optimize barb demister, it is characterized in that, barb demister is made up of multiple demister blade assembly, demister blade assembly is made up of the adjacent demister blade be fixedly connected with by jig between two again, every two demister blades form fluid passage, the barb of demister is placed in fluid passage.
Describedly be placed in demister barb in fluid passage and demister import vertical height is 69.5mm place, the angle of barb and vertical direction is 36 °; Demister barb is made up of straightway and arc, its straight line segment length 6.5mm, and arc is that radius is 6.5mm and 1/4 circular arc tangent with straightway.
Described barb is placed in the fluid passage that demister blade is formed, and the grain direction in the fluid passage of blade formation complied with by barb, thus controls the pressure drop that system produces.
The beneficial effects of the utility model be structure simple, be easy to realize, in-site installation is convenient, ensureing demisting efficiency while pressure drop minimum; In order to overcome the problem that current wet desulfurization demister demisting efficiency is low, pressure drop is high, reaching the normal operation both ensureing wet method fume desulfurizing system, saving again the dual purpose of the energy.
Accompanying drawing explanation
Fig. 1 is FLAT MEV25/40 type defogger system overall schematic in wet desulfuration tower.
Fig. 2 is the demister vane group schematic diagram that barb is optimized.
In Fig. 1,1. demister blade assembly; 2. demister blade support structure; 3. demister brace summer; 4. flushing line; 5. flushing line support system; In Fig. 2,6. demister blade; 7. demister barb.
Detailed description of the invention
The utility model provides a kind of streamlined two passage bands to optimize barb demister, is described further the utility model below in conjunction with accompanying drawing.
In Fig. 1, defogger system is made up of demister blade assembly 1, demister blade support structure 2, demister brace summer 3, flushing line 4 and flushing line support system 5, its basic structure is consistent with FLAT MEV25/40 type demister, demister blade assembly 1 is spliced between two by jig by multiple demister blade 6, and every two demister blades 6 form fluid passage (as shown in Figure 2).Described demister blade 6 is made up of streamline vane and demister barb 7, and it is 69.5mm place that demister barb 7 is placed in demister import vertical height, and the angle of barb and vertical direction is 36 °.Demister barb 7 is made up of straightway and arc, its straight line segment length 6.5mm, and arc is that radius is 6.5mm and 1/4 circular arc tangent with straightway.
Can be verified by numerical experiments, the 6 pairs of drops of the demister blade after improving and optimizating have and well trap effect.When the air-flow with drop is through demister fluid passage, because the streamline in blade fluid passage complied with by barb, thus control the pressure drop that system produces.Barb is placed in the fluid passage that demister blade 6 is formed, and fluid passage is narrowed, and adds the probability that drop and demister blade 6 collide, thus increases the probability that drop is captured, and serves the effect of raising demisting efficiency.
Claims (3)
1. barb demister optimized by streamlined two passage bands, it is characterized in that, barb demister is made up of multiple demister blade assembly, demister blade assembly is made up of the adjacent demister blade be fixedly connected with by jig between two again, every two demister blades form fluid passage, and the barb of demister is placed in fluid passage.
2. barb demisters optimized by a kind of streamlined two passage bands according to claim 1, it is characterized in that, described in be placed in demister barb in fluid passage and demister import vertical height is 69.5mm place, the angle of barb and vertical direction is 36 °; Demister barb is made up of straightway and arc, its straight line segment length 6.5mm, and arc is that radius is 6.5mm and 1/4 circular arc tangent with straightway.
3. barb demister optimized by a kind of streamlined two passage bands according to claim 1, it is characterized in that, described barb is placed in the fluid passage that demister blade is formed, and the grain direction in the fluid passage of blade formation complied with by barb, thus controls the pressure drop that system produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171555.2U CN204563780U (en) | 2015-03-25 | 2015-03-25 | Barb demister optimized by a kind of streamlined two passage bands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171555.2U CN204563780U (en) | 2015-03-25 | 2015-03-25 | Barb demister optimized by a kind of streamlined two passage bands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204563780U true CN204563780U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520171555.2U Expired - Fee Related CN204563780U (en) | 2015-03-25 | 2015-03-25 | Barb demister optimized by a kind of streamlined two passage bands |
Country Status (1)
| Country | Link |
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| CN (1) | CN204563780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104740935A (en) * | 2015-03-25 | 2015-07-01 | 三河发电有限责任公司 | Streamline-type two-passage demister with optimized barb |
| CN107281819A (en) * | 2017-07-03 | 2017-10-24 | 合肥天翔环境工程有限公司 | A kind of High efficiency baffle plate formula demister |
-
2015
- 2015-03-25 CN CN201520171555.2U patent/CN204563780U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104740935A (en) * | 2015-03-25 | 2015-07-01 | 三河发电有限责任公司 | Streamline-type two-passage demister with optimized barb |
| CN107281819A (en) * | 2017-07-03 | 2017-10-24 | 合肥天翔环境工程有限公司 | A kind of High efficiency baffle plate formula demister |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20160325 |