CN203196508U - Water-cooled tube type condensate dust remover - Google Patents
Water-cooled tube type condensate dust remover Download PDFInfo
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- CN203196508U CN203196508U CN 201320213385 CN201320213385U CN203196508U CN 203196508 U CN203196508 U CN 203196508U CN 201320213385 CN201320213385 CN 201320213385 CN 201320213385 U CN201320213385 U CN 201320213385U CN 203196508 U CN203196508 U CN 203196508U
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- water
- heat exchanger
- exchanger tube
- pipe
- deduster
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Abstract
The utility model belongs to the technical field of waste gas purification and in particular relates to a water-cooled tube type condensate dust remover. The water-cooled tube type condensate dust remover is generally applied to the electric power environmental protection industry, and operates at the downstream of a flue gas wet-process desulfurizer (FGD) of a thermal power plant for catching impurities including fine particle dust, gypsum and liquid water in the flue gas, so that clean exhaustion of the flue gas of the power plant is realized; meanwhile, saturated flue gas of the water vapor is cooled through cooling water so that vaporous water in the flue gas is partially recycled and the vaporous water forms a water film on the surface of a heat exchange tube, the effects of strengthening dust catching capacity and flushing collected dust particles are simultaneously achieved, and dust removing efficiency and long-term working stability of the device are ensured.
Description
Technical field
The utility model belongs to the waste gas purification technical field, is specifically related to a kind of water-cooled pipe type and coagulates water deduster, can be used for dedusting and the demist of flue gas behind the wet desulphurization device.
Background technology
China causes domestic power supply point mainly based on coal-fired thermal power generation based on the energy resource structure of coal.The end of the year in 2010, China's capacity of installed generator reaches about 9.5 hundred million kilowatts, and wherein thermal power generation Denso machine capacity is 700,000,000 kilowatts, accounts for about 73.68% of total capacity.
The coal-burning power plant has taked a large amount of technical measures in recent years in order to solve the boiler smoke emission pollution problem, reduces flue dust, SO
2, setting up and transforming of electrostatic precipitator, flue gas desulphurization system (FGD), flue gas denitrification system (SCR) successively carried out in the discharging of pollutants such as nitrogen oxide.The whole blowdown level of thermoelectricity industry reduces greatly at present.
But, because a large amount of uses of wet desulphurization, make that the content of gypsum improves greatly in the boiler chimney, though power plant has installed electrostatic precipitator, but because desulfurizer is arranged in the downstream of deduster, so can't handle the gypsum that desulphurization system produces, in any case improve the efficient of deduster, also can't reduce the gypsum content in the flue gas.And gypsum rain phenomenon has become one of main Environmental Problems that has a strong impact on power plant's surrounding resident life at present.Therefore a lot of local power plant can not ordinary production, and society and enterprise have all been brought ill effect.And because the further raising of fast development of national economy and environmental requirement makes present smoke dust emission level also need further to be reduced.
At present, domestic coal-fired station has equipped in a large number and has not established the GGH(flue gas heater) lime stone gypsum method flue gas desulfurization device, smog discharge temperature is that water vapour is saturation state in the flue gas about 50 ℃, also contains ultra-fine flue dust, SO in the flue gas
2, SO
3The pollutant of failing to wash away fully Deng desulfurizer, wherein SO
3Be aerosol state, in addition because the influence of sulfur removal technology also can be carried gypsum particle secretly in the flue gas, and these pollutants will directly be brought into atmosphere from chimney, meet the condensation knot then, can aggravate the formation of gypsum rain.Not only cause environmental pollution, also waste water resource in a large number.
Improvement to desulfurated plaster rain at present mainly comprises following several mode:
1. flue gas reheat: desulfuration absorbing tower is exported the cigarette temperature be increased to 80 ℃ from about 50 ℃, make that the water vapour in the flue gas is undersaturated condition, the phenomenon of can not condensing when discharging chimney improves atmosphere hoist height simultaneously, increase diffusion area, reduce the local influence that pollutes.
2. the wet electrostatic demister is set up in outlet on the absorption tower, catches grit and drop in the flue gas, reaches the purpose of reduction of discharging.
All there is different problems in above-mentioned two kinds of methods, and the former will transform completely to desulfurizer, installs the GGH heat exchanger additional, not only equipment manufacturing cost height, and volume is big, and a lot of scenes are difficult to arrange, equipment resistance is more than 1000Pa, and the subsidiary engine power consumption that brings is considerable; The latter is owing to considering anticorrosion problem, so equipment manufacturing cost is very high, in order to guarantee except fog effect, flue gas flow rate need be fallen very low, so equipment volume is huger, on-the-spot being difficult to arranged, and this kind equipment is few in the power industry application, and actual use experience is few.
The problem of preventing and treating of gypsum rain is very urgent, need a kind of simply, reliably, technological means solves efficiently.In addition, at present State Bureau of Environmental Protection has launched discussion that thermal power plant's flue dust discharge capacity is further reduced, and this makes after the desulfurization that further dedusting becomes the hot issue that industry is discussed.
The utility model content
At the problems referred to above, the utility model provides a kind of water-cooled pipe type to coagulate water deduster, by the know-why combination with impingement collector and pipe heat exchanger, realized that the dedusting of saturated wet flue gas and water reclaim, and have solved dedusting and the demist problem of flue gas behind the wet desulphurization device.
For realizing above-mentioned utility model purpose, the utility model provides following technical scheme:
A kind of water-cooled pipe type is coagulated water deduster, is arranged in the flue, it is characterized in that: it comprises cooling water inlet 1, coolant outlet 2, choked flow heat exchanger tube grid 4, pipe grid support member 5, heat exchanger tube 7;
Wherein, heat exchanger tube 7 is U-shaped pipe, arranges that perpendicular to the flue direction its water inlet end is communicated with cooling water inlet 1, and the water side is communicated with coolant outlet 2; The tube bank of a plurality of heat exchanger tubes 7 is arranged perpendicular to flue, forms choked flow heat exchanger tube grid 4; Described heat exchanger tube 7 is fixed by bracing or strutting arrangement; Described bracing or strutting arrangement comprises the pipe grid support member 5 that is positioned at choked flow heat exchanger tube grid 4 both sides; Be arranged in the support bar 10 between the pipe grid support member 5, fixedly there are a plurality of heat exchanger tubes 7 support bar 10 both sides by pipe clamp 8; And be used for to regulate spacing between a plurality of heat exchanger tubes 7, be arranged at the spacer ring 9 between the pipe clamp 8; Wherein, be arranged between the pipe row of heat exchanger tube 7 of sides adjacent of adjacent supports bar 10 and be provided with ash interval 11 with Louing;
Choked flow heat exchanger tube grid 4 one sides are provided with the water rinse-system; Choked flow heat exchanger tube grid 4 and water rinse-system below are provided with water leg.
Described water-cooled pipe type is coagulated in the water deduster, and heat exchanger tube 7 is arranged 1.3-2 times that is spaced apart heat exchanger tube 7 external diameters along the pipe that is parallel between the flue gas direction, and heat exchanger tube 7 along the 1.5-3 that is spaced apart heat exchanger tube 7 external diameters perpendicular to the row of the pipe between the flue gas direction doubly.
Described heat exchanger tube 7 adopts fluoroplastics or polybutene material to make.
Described bracing or strutting arrangement adopts fluoroplastics to make.
Described water rinse-system, comprise flushing water interface 3, the flushing jellyfish pipe 6 that links to each other with flushing water interface 3, wherein, flushing jellyfish pipe 6 is provided with and gos deep into formula wash tub pipe 12.
Described water-cooled pipe type is coagulated water deduster and is also comprised front and back pressure reduction on-line measurement device.
Described water-cooled pipe type is coagulated water deduster and is also comprised front and back temperature difference on-line measurement device and flow measurement adjusting device.
The external diameter of pipe of described heat exchanger tube 7 is 5-10mm, and wall thickness is 04-1.0mm.
The washing pressure of described water rinse-system reaches 0.8MPa, flushing in per 8 hours 20 seconds.
In the described bracing or strutting arrangement, described support bar 10 is provided with the hole, and pipe clamp 8 passes the hole on the support bar 10, is wrapped in to form U-shaped pipe clamp on the support bar 10, wherein is provided with spacer ring 9 between the U-shaped pipe clamp.
Compared with prior art, the beneficial effects of the utility model are:
1; water-cooled pipe type of the present utility model is coagulated water deduster and generally is applied to the power environment protection industry; the operating position is in the downstream of thermal power plant smoke-gas wet desulfurization device (FGD); catch the fine grained dust in the flue gas; gypsum; impurity such as aqueous water; realize the clean emission of coal steam-electric plant smoke; by cooling water the saturated flue gas of water vapour is cooled off simultaneously; vaporous water in the partially recycled flue gas; and make it to form moisture film on the heat exchanger tube surface; reach simultaneously and strengthen the dust capturing ability and wash the effect of having collected grit, guarantee efficiency of dust collection and the long-term working stability of equipment.
2, water-cooled pipe type of the present utility model coagulate water deduster to desulfurizer after the whole efficiency of dust collection of flue gas can between 40-95%, design as required, reentrainment of dust can be avoided at all; Can solve the problem of existing desulfurizer gypsum rain effectively up hill and dale, gypsum particle is removed efficient and can be selected to set between 80-98%; Aqueous water is removed efficient and is surpassed 80%; Selecting for use of material can be so that the equipment corrosion problem be solved at all; The device structure design can be avoided stifled grey scale problems;
The condensed water collection efficiency can be determined according to demand, generally between 15-40%.
Description of drawings
Fig. 1 coagulates the structural representation of water deduster for water-cooled pipe type of the present utility model;
Fig. 2 is the partial left side view of Fig. 1;
Fig. 3 is the top view of Fig. 1;
Fig. 4 is the partial enlarged drawing of A part among Fig. 3, shows the supporting construction schematic diagram of heat exchanger tube in the utility model.
Reference numeral
1 cooling water inlet, 2 coolant outlets
3 flushing water interfaces, 4 choked flow heat exchanger tube grid
5 pipe grid support members, 6 flushing jellyfish pipes
7 heat exchanger tubes, 8 pipe clamps
9 spacer rings, 10 support bars
11 leak ash interval 12 gos deep into the formula wash tub pipe
The specific embodiment
Below, by reference to the accompanying drawings with embodiment, explanation water-cooled pipe type of the present utility model is coagulated water deduster in detail further.
Shown in Fig. 1-4, the water-cooled pipe type of present embodiment is coagulated water deduster and is comprised cooling water inlet 1, coolant outlet 2, choked flow heat exchanger tube grid 4, pipe grid support member 5, heat exchanger tube 7.
Wherein, described heat exchanger tube 7 is U-shaped pipe, arranges that perpendicular to the flue direction its water inlet end is communicated with cooling water inlet 1, and the water side is communicated with coolant outlet 2.The tube bank of a plurality of heat exchanger tubes 7 is arranged perpendicular to flue, forms choked flow heat exchanger tube grid 4.
Described heat exchanger tube 7 is fixed by bracing or strutting arrangement.Described bracing or strutting arrangement comprises the pipe grid support member 5 that is positioned at choked flow heat exchanger tube grid 4 both sides; Be arranged in the support bar 10 between the pipe grid support member 5, fixedly there are a plurality of heat exchanger tubes 7 support bar 10 both sides by pipe clamp 8; And be used for to regulate spacing between a plurality of heat exchanger tubes 7, be arranged at the spacer ring 9 between the pipe clamp 8.
Cooling water inlet 1 and coolant outlet 2 are arranged on described bracing or strutting arrangement upper end.Choked flow heat exchanger tube grid 4 one sides are provided with the water rinse-system.Choked flow heat exchanger tube grid 4 and water rinse-system below are provided with water leg.Wherein, be arranged between the pipe row of heat exchanger tube 7 of sides adjacent of adjacent supports bar 10 and be provided with ash interval 11 with Louing.
Wherein, heat exchanger tube 7 is arranged 1.3-2 times that is spaced apart heat exchanger tube 7 external diameters along the pipe that is parallel between the flue gas direction, and heat exchanger tube 7 along the 1.5-3 that is spaced apart heat exchanger tube 7 external diameters perpendicular to the row of the pipe between the flue gas direction doubly.
Present embodiment adopts the heat exchanger tube 7 of U-shaped shell and tube to stop part as the flue dust flow-disturbing, and as heat exchange element, its external diameter of pipe is 5-10mm, and wall thickness is 0.4-1.0mm.The tube bank of a plurality of heat exchanger tubes 7 is arranged perpendicular to flue, forms choked flow heat exchanger tube grid 4.And it is fixing to adopt vertical fluoroplastics to support pipe clamp 8, can absorb the vertical direction expansion displacement of tube bank, forms the flow channel of vertical direction simultaneously, guarantees that condensate water and flushing water can directly flow down, and do not assemble.
The selection of heat exchanger tube tubing: the selection of tubing need be considered running temperature, abrasion resistance properties, and key factors such as tubing creep-resistant property finally determine to select for use fluoroplastics (FEP or PFA) and two kinds of materials of polybutene, and are selected according to different operating modes.
Determining of heat exchange tube spacing: the tube pitch of heat exchanger tube 7 (comprising along being parallel to the flue gas direction and arranging the interval perpendicular to the pipe of flue gas direction) data is by experiment determined, to guarantee minimum gas collateral resistance and dust-collecting and heat exchanging effect.
Determining of heat exchange tube row quantity: tube bank is arranged number needs along the pipe of flow of flue gas direction and will be required and reclaim the water yield to require to calculate definite according to efficiency of dust collection; The quantity of the vertical flow of flue gas direction in tube bank edge requires according to flue gas resistance and efficiency of dust collection requires to calculate definite.
The welding procedure of tube sheet material and tube bank: adopt welding fabrication technology of multistage heat conduction, guarantee that the plugging rate is less than 5/1000ths.
As shown in Figure 4, the bracing or strutting arrangement of present embodiment adopts the vertical hanging structure of modularized design, and support bar 10 is provided with the hole, and pipe clamp 8 passes the hole on the support bar 10, is wrapped in to form U-shaped pipe clamp 8 on the support bar 10, wherein is provided with spacer ring 9 between the U-shaped pipe clamp 8.And described bracing or strutting arrangement adopts the perfluor plastic member, avoids corrosion and scaling, and project organization has formed unobstructed vertical water circulation road (leak ash at interval 11), prevents from that buck from assembling to harden.
Present embodiment adopts fixed high-pressure water rinse-system, and exchange heat pipe 1 carries out online water flushing, and washing pressure reaches 0.8MPa, and flushing in per 8 hours 20 seconds guarantees the cleaning on pipe grid surface.Described water rinse-system comprises flushing water interface 3, the flushing jellyfish pipe 6 that links to each other with flushing water interface 3, and wherein, flushing jellyfish pipe 6 is provided with and gos deep into formula wash tub pipe 12, and it is inner to be flushed to tube bank, guarantees good developing result.
Cooling water in the present embodiment adopts circulating cooling water of power plant, and temperature rise is 3-8 ℃.0.5-3 ℃ of flue-gas temperature decline.
Present embodiment is provided with cooling water front and back temperature difference on-line measurement device and flow measurement adjusting device, and guaranteeing has enough water to be freeze-outed, thereby guarantees enough efficiency of dust collections.
Pressure reduction on-line measurement device when flue gas resistance reaches capping, was opened the water rinse-system automatically before and after present embodiment was provided with, and reached the setting lower limit up to flue gas resistance.
The course of work of present embodiment is as follows: the water-cooled pipe type of present embodiment is coagulated in the flue after water deduster is arranged in desulfuration absorbing tower, in U-shaped shell and tube heat exchanger tube 7, lead to cooling water, the drop and the particle that form in 4 pairs of flue gases of choked flow heat exchanger tube grid are tackled, make it take place fierce to stream and collide, liquid particles parcel solid granulates is grown up gradually, and attach on heat exchanger tube 7, owing to be connected with cooling water in the heat exchanger tube 7, under the water vapour saturation state, cooling water can cause the water vapour generation condensation in the flue gas, the pipe outer wall of heat exchanger tube 7 can form the moisture film of adequate thickness, not only play the effect of adhesion dust, can also play the effect of collecting condensate water and flushing heat exchanging pipe 7, the tubulation of heat exchanger 7 adopts and is arranged vertically mode and is provided with certain leakage ash interval 11, moisture film can flow from top to bottom, with the solid granulates fog belt that attaches in water leg.Water leg can be connected with water treatment system, be sent to water treatment system after the mortar that washes and condensate water collected, because the condensed water of collecting was handled through desulfurization, so actual pollutant load is very low, the supplementing water that just can be used as desulfurization through simple processing is used.In addition, present embodiment also is provided with independently water flushing device, when condensate water can not thoroughly clean heat exchanger tube 7 surperficial, can open water flushing device, guarantees the heat-transfer surface cleaning, plays the effect of ash discharge simultaneously; The water flushing device of present embodiment also can be opened according to pressure reduction on-line measurement Device Testing result simultaneously, when flue gas resistance reaches capping, opens the water rinse-system automatically, reaches the setting lower limit up to flue gas resistance.
Claims (10)
1. a water-cooled pipe type is coagulated water deduster, is arranged in the flue, it is characterized in that: it comprises cooling water inlet (1), coolant outlet (2), choked flow heat exchanger tube grid (4), pipe grid support members (5), heat exchanger tube (7);
Wherein, heat exchanger tube (7) is U-shaped pipe, arranges that perpendicular to the flue direction its water inlet end is communicated with cooling water inlet (1), and the water side is communicated with coolant outlet (2); The tube bank of a plurality of heat exchanger tubes (7) is arranged perpendicular to flue, forms choked flow heat exchanger tube grid (4); Described heat exchanger tube (7) is fixed by bracing or strutting arrangement; Described bracing or strutting arrangement comprises the pipe grid support member (5) that is positioned at choked flow heat exchanger tube grid (4) both sides; Be arranged in the support bar (10) between the pipe grid support members (5), fixedly there are a plurality of heat exchanger tubes (7) support bar (10) both sides by pipe clamp (8); And be used for to regulate spacing between a plurality of heat exchanger tubes (7), be arranged at the spacer ring (9) between the pipe clamp (8); Wherein, be arranged between the pipe row of heat exchanger tube (7) of sides adjacent of adjacent supports bar (10) and be provided with ash interval (11) with Louing;
Coolant outlet (2) and cooling water inlet (1) are arranged on described bracing or strutting arrangement upper end;
Choked flow heat exchanger tube grid (4) one sides are provided with the water rinse-system; Choked flow heat exchanger tube grid (4) and water rinse-system below are provided with water leg.
2. water-cooled pipe type as claimed in claim 1 is coagulated water deduster, it is characterized in that: described water-cooled pipe type is coagulated in the water deduster, heat exchanger tube (7) is arranged 1.3-2 times that is spaced apart heat exchanger tube (7) external diameter along the pipe that is parallel between the flue gas direction, and heat exchanger tube (7) along the 1.5-3 that is spaced apart heat exchanger tube (7) external diameter perpendicular to the row of the pipe between the flue gas direction doubly.
3. water-cooled pipe type as claimed in claim 1 is coagulated water deduster, it is characterized in that: described heat exchanger tube (7) adopts fluoroplastics or polybutene material to make.
4. water-cooled pipe type as claimed in claim 1 is coagulated water deduster, it is characterized in that: described bracing or strutting arrangement adopts fluoroplastics to make.
5. water-cooled pipe type as claimed in claim 1 is coagulated water deduster, it is characterized in that: described water rinse-system, comprise flushing water interface (3), the flushing jellyfish pipe (6) that links to each other with flushing water interface (3), wherein, flushing jellyfish pipe (6) is provided with and gos deep into formula wash tub pipe (12).
6. water-cooled pipe type as claimed in claim 1 is coagulated water deduster, it is characterized in that: described water-cooled pipe type is coagulated water deduster and is also comprised front and back pressure reduction on-line measurement device.
7. water-cooled pipe type as claimed in claim 1 is coagulated water deduster, it is characterized in that: described water-cooled pipe type is coagulated water deduster and is also comprised front and back temperature difference on-line measurement device and flow measurement adjusting device.
8. water-cooled pipe type as claimed in claim 1 is coagulated water deduster, it is characterized in that: the external diameter of pipe of described heat exchanger tube (7) is 5-10mm, and wall thickness is 04-1.0mm.
9. coagulate water deduster as claim 1 or 5 described water-cooled pipe type, it is characterized in that: the washing pressure of described water rinse-system reaches 0.8MPa, flushing in per 8 hours 20 seconds.
10. water-cooled pipe type as claimed in claim 1 is coagulated water deduster, it is characterized in that: in the described bracing or strutting arrangement, described support bar (10) is provided with the hole, pipe clamp (8) passes the hole on the support bar (10), be wrapped in support bar (10) and go up the U-shaped pipe clamp of formation, wherein be provided with spacer ring (9) between the U-shaped pipe clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320213385 CN203196508U (en) | 2013-04-24 | 2013-04-24 | Water-cooled tube type condensate dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320213385 CN203196508U (en) | 2013-04-24 | 2013-04-24 | Water-cooled tube type condensate dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203196508U true CN203196508U (en) | 2013-09-18 |
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ID=49140650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320213385 Expired - Fee Related CN203196508U (en) | 2013-04-24 | 2013-04-24 | Water-cooled tube type condensate dust remover |
Country Status (1)
| Country | Link |
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| CN (1) | CN203196508U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203154A (en) * | 2013-04-24 | 2013-07-17 | 北京新世翼节能环保科技股份有限公司 | Water-cooled tube type condensate dust collector |
| CN104874234A (en) * | 2015-06-09 | 2015-09-02 | 四川宏达股份有限公司 | Roasting flue gas heat recovery and dust suppression system of zinc oxide production device |
| CN105983287A (en) * | 2015-01-27 | 2016-10-05 | 德梅斯特(上海)环保科技有限公司 | High-effective dust and mist removal integrated system |
| CN107042044A (en) * | 2017-05-15 | 2017-08-15 | 重庆天运汽车配件有限公司 | Vapor sorption formula dust arrester |
-
2013
- 2013-04-24 CN CN 201320213385 patent/CN203196508U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203154A (en) * | 2013-04-24 | 2013-07-17 | 北京新世翼节能环保科技股份有限公司 | Water-cooled tube type condensate dust collector |
| CN103203154B (en) * | 2013-04-24 | 2015-01-21 | 北京新世翼节能环保科技股份有限公司 | Water-cooled tube type condensate dust collector |
| CN105983287A (en) * | 2015-01-27 | 2016-10-05 | 德梅斯特(上海)环保科技有限公司 | High-effective dust and mist removal integrated system |
| CN104874234A (en) * | 2015-06-09 | 2015-09-02 | 四川宏达股份有限公司 | Roasting flue gas heat recovery and dust suppression system of zinc oxide production device |
| CN104874234B (en) * | 2015-06-09 | 2017-01-18 | 四川宏达股份有限公司 | Roasting flue gas heat recovery and dust suppression system of zinc oxide production device |
| CN107042044A (en) * | 2017-05-15 | 2017-08-15 | 重庆天运汽车配件有限公司 | Vapor sorption formula dust arrester |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20210424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |