CN203264455U - Desulfurizing tower outlet smoke duct demister - Google Patents
Desulfurizing tower outlet smoke duct demister Download PDFInfo
- Publication number
- CN203264455U CN203264455U CN 201320305500 CN201320305500U CN203264455U CN 203264455 U CN203264455 U CN 203264455U CN 201320305500 CN201320305500 CN 201320305500 CN 201320305500 U CN201320305500 U CN 201320305500U CN 203264455 U CN203264455 U CN 203264455U
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- Prior art keywords
- demist
- flue
- desulfurizing tower
- slanting baffle
- demister
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Abstract
The utility model discloses a desulfurizing tower outlet smoke duct demister, and belongs to the technical field of flue gas desulfurization. The desulfurizing tower outlet smoke duct demister is characterized in that a group of demisting oblique baffle plates which are arrayed at intervals in a stepped mode are arranged on the lower part in a smoke dust crossing the cross section of the smoke dust along an absorption tower outlet flue gas flow direction from top to bottom in a descending mode step by step; each group of demisting baffle plates are arranged obliquely, and two ends of the demisting baffle plates are respectively connected to and arranged on a wall sticking framework; the wall sticking framework is fixedly connected with a smoke duct side plate surface; a liquid collecting and discharging groove is arranged below the demisting oblique baffle plate at the bottommost layer in a matched mode. According to the utility model, the original structure of the desulfurizing tower outlet smoke duct is fully utilized, and the structure of arranging the demisting oblique baffle plates along the flue gas flow direction step by step is adopted, so that collected liquid drops can slide off layer by layer from top to bottom along each demisting oblique baffle plate, and finally enter the liquid collecting and discharging groove and are removed effectively; meanwhile the circulation situation of the gas phase part in the flue gas can be improved, facilitating to lowering the running resistance of the device further, and further removing liquid drops mixed into the flue gas without changing the original system resistance obviously.
Description
Technical field
The utility model belongs to the flue gas desulfur device technical field of coal-fired unit wet desulfurization system, is specifically related to a kind of desulfurizing tower exhaust pass demister.
Background technology
at present, the flue gas desulfur device of Large-sized Coal-fired Power group adopts lime stone---gypsum wet sulfur removal technology more than 90% both at home and abroad, because being subject to the various factors restriction, in this technique desulfurizing tower, set demister is difficult to reach optimal except fog effect, can carry a certain amount of drop secretly the clean flue gas of discharging after desulfurization in tower, a lot of flying dusts have been carried in these drops, lime stone and gypsum and other solid particle, as further not removing, to cause following adverse effects: 1) when GGH(flue gas-flue gas heat-exchange unit is set in desulphurization system) during equipment, solid particulate matter in drop can deposit on the circulation wall that sticks to GGH, be difficult to purge clean, not only can increase the running resistance of desulfurization fume system, when situation is serious, can cause that also GGH equipment stops up, cause whole system to stop transport, 2) when not establishing GGH equipment in desulphurization system, drop can carried the discharge chimney by swiftly flowing flue gas, therefore the flue-gas temperature the time only has 50 ℃ of left and right, flue gas is lifting and diffusion effectively, drop will be concentrated and descend slowly and lightly near plant area, form " gypsum rain ", to the environment of power plant and surrounding area.
The utility model content
The utility model aims to provide a kind of be fit to the to be arranged on clean flue of level after the outlet of absorption tower, the desulfurizing tower exhaust pass demister technical scheme of employing swash plate vertical structure, to overcome problems of the prior art.
Described desulfurizing tower exhaust pass demister, flue comprises flue base plate face, flue lateral plates, it is characterized in that cross over flue cross section, bottom in flue, descend step by step along absorption tower outlet flue gas flow direction and arrange one group and be the spaced demist slanting baffle of staged from top to bottom, each demist slanting baffle adopts and is obliquely installed and its two ends connect respectively and are arranged on adherent framework, the adherent framework of both sides is fixedly connected with the flue lateral plates respectively, and the below of bottom demist slanting baffle is equipped with the liquid collecting letdown tank.
Described desulfurizing tower exhaust pass demister is characterized in that being equipped with between neighbouring two-stage demist slanting baffle and strengthens winning in succession.
Described desulfurizing tower exhaust pass demister, the tiltangleθ that it is characterized in that the described demist slanting baffle that is obliquely installed and horizontal direction is 30 °～70 °.
Described desulfurizing tower exhaust pass demister is characterized in that between the described neighbouring two-stage that is spaced the demist slanting baffle that overlapping and upper edge subordinate's demist slanting baffle in the vertical direction is positioned at the top on the lower edge of higher level's demist slanting baffle.
Described desulfurizing tower exhaust pass demister, it is characterized in that described demist slanting baffle occupied cross-sectional area in flue is not more than 20% of the total cross-sectional area of flue, and the distance between the superiors' demist slanting baffle top and flue base plate face is not more than 1.5 meters.
Described desulfurizing tower exhaust pass demister, it is characterized in that described adherent framework adopts the triangular support frame structure, coordinated by side plate and right angle member to consist of, side plate is connected cooperation with demist slanting baffles at different levels, and the right angle member is fixedly connected with the flue lateral plates by bolt.
Described desulfurizing tower exhaust pass demister is characterized in that described demist slanting baffle adopts level Four or the above oblique structure that is spaced of staged of level Four.
Described desulfurizing tower exhaust pass demister is characterized in that being equipped with rubber sheet gasket between described adherent framework and flue lateral plates.
Described desulfurizing tower exhaust pass demister is characterized in that the liquid collecting letdown tank is stretched in the bottom of bottom demist slanting baffle, and the interlocking of liquid collecting letdown tank is arranged in flue base plate face.
Described desulfurizing tower exhaust pass demister is characterized in that between described neighbouring two-stage demist slanting baffle, lap height in the vertical direction is not less than 3mm.
above-mentioned desulfurizing tower exhaust pass demister, novel, rational in infrastructure, utilize the original structure of desulfurizing tower exhaust pass, the oblique cell structure that adopts the demist slanting baffle to arrange step by step along flue gas flow direction, can take full advantage of the swiftly flowing impulsive force of flue gas, after making drop in flue gas knock upper level demist slanting baffle, depress on high speed impact and top at follow-up flue gas, step by step to lower floor's demist slanting baffle landing, make the drop of collecting can be from top to bottom along successively landing of demist slanting baffles at different levels, finally entering the liquid collecting letdown tank is effectively removed, also can improve simultaneously the current intelligence of gas phase part in flue gas, be conducive to further reduce the running resistance of device, the drop of having carried secretly in having realized further to remove flue gas in not obvious change original system resistance, effectively alleviate the GGH equipment that stops up, form relevant adverse effects such as " gypsum rains ".
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that the A-A of Fig. 1 is to structural representation;
Fig. 3 is the enlarged diagram of syndeton relevant to described demist slanting baffle in Fig. 1;
In figure: the adherent framework of 1-, 1a-side plate, 1b-right angle member, 2-bolt, 3-flue lateral plates, 4-strengthen winning in succession, 5-demist slanting baffle, 6-liquid collecting letdown tank, 7-flue base plate face.
The specific embodiment
Now in conjunction with Figure of description, describe the specific embodiment of the present utility model in detail:
desulfurizing tower exhaust pass demist dress, be fit to be arranged on the clean flue lower area of level after the absorption tower exports, demist slanting baffle at different levels 5 cross over flue cross sections, from top to bottom along the setting that descends step by step of absorption tower outlet flue gas flow direction, multistage demist slanting baffle 5 is staged and is spaced, gas in flue gas, density and the proportion of liquid two-phase there are differences, has different flow features, in swiftly flowing flue gas, the motion of drop in horizontal flue is downward parabolic type, after the certain level distance, drop is presented in flue gas and is dredged lower close attitude distribution, and mainly concentrate on the flue bottom section, utilize this characteristic, demister can be arranged on the flue bottom section, only need utilize the less sectional area in flue bottom, just can obtain larger drop removal effect, cost performance is very high,
as shown in Figure 1 and Figure 2, in flue bottom cross over flue cross section, descend step by step along absorption tower outlet flue gas flow direction and arrange one group and be the spaced demist slanting baffle 5 of staged from top to bottom, be equipped with between neighbouring two-stage demist slanting baffle 5 and strengthen winning in succession 4 to improve the device integral rigidity, each demist slanting baffle 5 adopts and is obliquely installed, its with horizontal direction tiltangleθ be that the gradient of 30 °～70 ° and demist slanting baffles 5 at different levels is identical, simultaneously between neighbouring two-stage demist slanting baffle 5 in the vertical direction overlapping and upper edge subordinate's demist slanting baffle 5 be positioned at the top on the upper edge of higher level's demist slanting baffle 5, guarantee in design that lap height in the vertical direction is not less than 3mm, be that the h1 shown in Fig. 3 should be not less than 3mm, to guarantee the collaborative fog effect that removes between demist slanting baffles 5 at different levels, prevent the fluid drop of having collected, the two ends of each demist slanting baffle 5 connect respectively and are arranged on adherent framework 1, adherent framework 1 adopts the triangular support frame structure, coordinated by side plate 1a and right angle member 1b and consist of, side plate 1a is used for installing demist slanting baffles 5 at different levels, right angle member 1b is fixedly connected with flue lateral plates 3 by bolt 2, right angle member 1b can adopt channel-section steel to make moulding, be equipped with rubber sheet gasket during installation between right angle member 1b and flue lateral plates 3 and consist of soft the connection, can avoid the anticorrosion lining of flue lateral plates 3 inwalls to suffer damage, and employing threaded fastener syndeton, can effectively reduce the welding job when installing in flue, improve the security against fire reliability of site operation, also be conducive to follow-up device is upgraded and safeguards, liquid collecting letdown tank 6 is stretched in the bottom of bottom demist slanting baffle 5, and 6 interlockings of liquid collecting letdown tank are arranged in flue base plate face 7, and the height dimension that demist slanting baffle 5 stretches into liquid collecting letdown tank 6 is not less than 3mm, and namely h2 shown in Fig. 2 should be not less than 3mm, install and use for reducing this patent the running resistance of bringing, guarantee simultaneously to reach good in fog effect, in global design, demist slanting baffle 5 occupied cross-sectional area in flue is not more than 20% of the total cross-sectional area of flue, and the distance between the superiors' demist slanting baffle 5 tops and flue base plate face 7 is not more than 1.5 meters, be that the H shown in Fig. 2 should be not more than 1.5 meters, reality is also the installation total height of this demister in flue.
In above-described embodiment, demist slanting baffle 5 adopts level Four or the above oblique structure that is spaced of staged of level Four, is the employing level Four shown in Fig. 1,2; During design, according to cross section span size and the welding condition in flue, the width d of demist slanting baffle 5 is generally between 80～200mm, and the span of its thickness of slab δ generally should between 2mm～10mm, can satisfy the strength and stiffness requirement to guarantee demist slanting baffles 5 at different levels; In order effectively to reduce operating load and the cost of manufacture of package unit, be convenient to on-the-spot the installation and updating maintenance, demist slanting baffle 5 can be taken thinner board making, then welding arranges to strengthen winning in succession and 4 carries out connection reinforcement between neighbouring demist slanting baffle 5, makes demist slanting baffles 5 at different levels be connected to become light and handy and firm, as to have an enough rigidity integral body.
the oblique mounting arrangements of demist slanting baffle 5 of this patent scheme is in the flue bottom, adopt the flow direction along the outlet flue gas to reduce step by step in arrangement, and between neighbouring two-stage demist slanting baffle 5 in the vertical direction the upper edge of overlapping while subordinate's demist slanting baffle 5 be positioned at the top on the lower edge of higher level's demist slanting baffle 5, the mounting structure that this adjacent level demist slanting baffle 5 superposes mutually by certain angle of inclination can take full advantage of the impulsive force of flue gas flow at high speed (general approximately 15m/s), after making drop in flue gas knock upper level demist slanting baffle 5, depress on high speed impact and top at follow-up flue gas, step by step to lower floor's demist slanting baffle 5 landings, make the drop of collecting can be from top to bottom along successively landing of demist slanting baffles 5 at different levels, finally entering liquid collecting letdown tank 6 is effectively removed, in addition, in the subtractive process of drop, flue gas and droplet have been completed automatically to the surface erosion of demist slanting baffle 5 and cleaning, need not again other flushing or clean facilities of special configuration, effectively reduced the operation and maintenance cost of package unit, the slanting baffle 5 of demist simultaneously adopts step by step along flue gas flow direction and arranges, can improve the current intelligence of gas phase part in flue gas, is conducive to further reduce the running resistance of device.
The utility model in one section zone of absorption tower outlet horizontal flue, can take full advantage of the internal structure of existing flue with Plant arrangement, need not separately to increase place and support etc. again, and is simple and reasonable; The main of structure is more general domestic standard material specification at present with material, and main force-summing element adopts the stainless steel of 316L or above grade, and buying is convenient, is conducive to reduce the cost of manufacture of device.
Claims (10)
1. desulfurizing tower exhaust pass demister, flue comprises flue base plate face (7), flue lateral plates (3), it is characterized in that cross over flue cross section, bottom in flue, descend step by step along absorption tower outlet flue gas flow direction and arrange one group and be the spaced demist slanting baffle of staged (5) from top to bottom, each demist slanting baffle (5) adopts and is obliquely installed and its two ends connect respectively and are arranged on adherent framework (1), adherent framework (1) is fixedly connected with flue lateral plates (3), and the below of bottom demist slanting baffle (5) is equipped with liquid collecting letdown tank (6).
2. desulfurizing tower exhaust pass demister as claimed in claim 1, is characterized in that being equipped with between neighbouring two-stage demist slanting baffle (5) and strengthen winning in succession (4).
3. desulfurizing tower exhaust pass demister as claimed in claim 1, is characterized in that the described demist slanting baffle (5) that is obliquely installed and the tiltangleθ of horizontal direction are 30 °～70 °.
4. desulfurizing tower exhaust pass demister as claimed in claim 1 is characterized in that between the described neighbouring two-stage that is spaced demist slanting baffle (5) that overlapping and upper edge subordinate's demist slanting baffle (5) in the vertical direction is positioned at the top on the lower edge of higher level's demist slanting baffle (5).
5. desulfurizing tower exhaust pass demister as claimed in claim 1, it is characterized in that described demist slanting baffle (5) occupied cross-sectional area in flue is not more than 20% of the total cross-sectional area of flue, and the distance between the superiors' demist slanting baffle (5) top and flue base plate face (7) is not more than 1.5 meters.
6. desulfurizing tower exhaust pass demister as claimed in claim 1, it is characterized in that described adherent framework (1) adopts the triangular support frame structure, coordinated by side plate (1a) and right angle member (1b) and consist of, side plate (1a) is connected cooperation with demist slanting baffles at different levels (5), and right angle member (1b) is fixedly connected with flue lateral plates (3) by bolt (2).
7. desulfurizing tower exhaust pass demister as claimed in claim 1, is characterized in that described demist slanting baffle (5) adopts level Four or the above oblique structure that is spaced of staged of level Four.
8. desulfurizing tower exhaust pass demister as claimed in claim 1, is characterized in that being equipped with rubber sheet gasket between described adherent framework (1) and flue lateral plates (3).
9. desulfurizing tower exhaust pass demister as claimed in claim 3, is characterized in that liquid collecting letdown tank (6) is stretched in the bottom of bottom demist slanting baffle (5), and liquid collecting letdown tank (6) interlocking is arranged in flue base plate face (7).
10. desulfurizing tower exhaust pass demister as claimed in claim 4, is characterized in that between described neighbouring two-stage demist slanting baffle (5), lap height in the vertical direction is not less than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320305500 CN203264455U (en) | 2013-05-30 | 2013-05-30 | Desulfurizing tower outlet smoke duct demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320305500 CN203264455U (en) | 2013-05-30 | 2013-05-30 | Desulfurizing tower outlet smoke duct demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203264455U true CN203264455U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320305500 Expired - Lifetime CN203264455U (en) | 2013-05-30 | 2013-05-30 | Desulfurizing tower outlet smoke duct demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203264455U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372349A (en) * | 2013-05-30 | 2013-10-30 | 浙江天地环保工程有限公司 | Demisting device for outlet flue of desulfurization tower |
| CN110314452A (en) * | 2019-07-01 | 2019-10-11 | 江苏双良低碳产业技术研究院有限公司 | A kind of flue gas takes off white device |
-
2013
- 2013-05-30 CN CN 201320305500 patent/CN203264455U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372349A (en) * | 2013-05-30 | 2013-10-30 | 浙江天地环保工程有限公司 | Demisting device for outlet flue of desulfurization tower |
| CN103372349B (en) * | 2013-05-30 | 2015-07-15 | 浙江天地环保工程有限公司 | Demisting device for outlet flue of desulfurization tower |
| CN110314452A (en) * | 2019-07-01 | 2019-10-11 | 江苏双良低碳产业技术研究院有限公司 | A kind of flue gas takes off white device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 310012, building 12, building 99, Huaxing Road, Hangzhou, Zhejiang, Xihu District Patentee after: ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 310012, building 12, building 99, Huaxing Road, Hangzhou, Zhejiang, Xihu District Patentee before: ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 310012, building 12, building 99, Huaxing Road, Hangzhou, Zhejiang, Xihu District Patentee after: Zhejiang Tiandi Environmental Protection Technology Co.,Ltd. Address before: 310012, building 12, building 99, Huaxing Road, Hangzhou, Zhejiang, Xihu District Patentee before: ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
|
| CX01 | Expiry of patent term |