CN208406486U - A kind of flue gas condensing clarifier and condensation purification system - Google Patents

A kind of flue gas condensing clarifier and condensation purification system Download PDF

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Publication number
CN208406486U
CN208406486U CN201820822000.3U CN201820822000U CN208406486U CN 208406486 U CN208406486 U CN 208406486U CN 201820822000 U CN201820822000 U CN 201820822000U CN 208406486 U CN208406486 U CN 208406486U
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China
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flue gas
inner tube
gas condensing
tube
cooling water
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CN201820822000.3U
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Chinese (zh)
Inventor
张勇
贾明华
付玉玲
葛茂杰
潘振艳
单国锋
杨天亮
杜永斌
牛涛
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Yantai Longyuan Power Technology Co Ltd
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Yantai Longyuan Power Technology Co Ltd
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Abstract

The utility model belongs to thermal power generation technical field, discloses a kind of flue gas condensing clarifier and condensation purification system.The flue gas condensing clarifier includes the inner tube set gradually from the inside to the outside, central tube and outer tube, and inner tube forms cooling duct, form waste water tunnel between central tube and outer tube for providing the channel of flow of flue gas between inner tube and central tube;The pipe shaft week of inner tube is equipped with multiple tongues, and tongue is arranged in cooling duct, and inner tube is connected to by tongue with waste water tunnel.The utility model is by flowing flue gas in inner tube, flue gas is realized using cooling duct and is condensed, and the dust in flue gas is also due to turbulent flow is attached to the inner wall of inner tube, the waste water and dust that generate by condensation are emitted into waste water tunnel jointly by the way that the tongue of inner tube pipe shaft is arranged in again, and then the external world is drained into, to reduce the water content and dustiness in flue gas.

Description

A kind of flue gas condensing clarifier and condensation purification system
Technical field
The utility model relates to thermal power generation technical field more particularly to a kind of flue gas condensing clarifier and condensation cleaning systems System.
Background technique
Currently, the thermal power plant in China is generally mounted with desulfurizer, wherein the overwhelming majority is wet process limestone-gypsum Desulfurizer.For not installing the flue gas system of rotary GGH (Gas Gas Heater, gas-gas heat exchanger), due to through FGD The flue gas being discharged after (Flue Gas Desulphurization, desulfurizing tower) from chimney is in a saturated state, in environment temperature Steam is condensed when lower will form " the wet plume " of white.
Flue gas is mainly used to directly heat or first condense the technology heated afterwards the administering method of " wet plume " at this stage Scheme.Since moisture content is higher in desulfurizing tower exiting flue gas, more energy need to be consumed using direct-fired mode, existing rank Section thinks that best mode is to use first to condense the technical solution heated afterwards.
As China is to the increasingly strict of environmental requirement, part thermal power generation unit is to reach dust less than 10mg/Nm3's Ultra-clean emission request requires that flue gas after desulfurization is further processed, and usual manner is to be exported to chimney segment in desulfurizing tower Wet cottrell is set.But its electricity consumption is very big, accounts for about the 0.4% of station service, and water consumption is higher.
It would therefore be highly desirable to need a kind of novel flue gas condensing clarifier and condensation purification system to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of flue gas condensing clarifier and condensation purification systems, to reduce in flue gas Water content and dustiness.
For this purpose, the utility model uses following technical scheme:
A kind of flue gas condensing clarifier, including inner tube, central tube and the outer tube set gradually from the inside to the outside, inner tube is for mentioning For the channel of flow of flue gas, cooling duct is formed between inner tube and central tube, forms waste water tunnel between central tube and outer tube;
The pipe shaft week of inner tube is equipped with multiple tongues, and tongue is arranged in cooling duct, and inner tube passes through tongue and waste water tunnel Connection.
Preferably, inner tube is equipped with swirl vane into flue gas end.
Preferably, central tube is equipped with cooling water inlet, flue gas end, the cooling water out that cooling water inlet is set to central tube go out Mouthful be set to central tube into flue gas end.
Preferably, outer tube is equipped with wastewater outlet, wastewater outlet is located at the flue gas end out of outer tube, and is located at the minimum of outer tube Position.
Preferably, inner tube and central tube are using round direct piping, outer tube uses rectangular direct piping.
A kind of flue gas condensing purification system, including multiple above-mentioned flue gas condensing clarifiers being arranged in parallel.
Preferably, the cigarette of multiple flue gas condensing clarifiers being equipped with into flue gas end for changing flow of flue gas cross-sectional area Road insertion plate door.
Preferably, further including wet desulfuration tower and chimney, multiple be arranged in parallel is equipped between wet desulfuration tower and chimney Flue gas condensing clarifier.
Preferably, further including cooling water pump, it is used to for cooling water to be delivered to multiple flue gas condensings being arranged in parallel net Change in device;Cooling water uses open circulation mode or closed cycle mode, and when using closed cycle mode, cooling water is by changing Hot device exchanges heat.
Preferably, further include wastewater storage tank and waste water delivery pump, wastewater storage tank respectively with multiple flue gases being arranged in parallel The wastewater outlet of condensation purifier is connected with waste water delivery pump.
The utility model has the beneficial effects that
The utility model realizes condensation to flue gas by flowing flue gas in inner tube, using cooling duct, and in flue gas Dust also due to turbulent flow is attached to the inner wall of inner tube, then the tongue by the way that inner tube pipe shaft is arranged in will be generated because of condensation it is useless Water and dust are emitted into waste water tunnel jointly, and then drain into the external world, to reduce the water content and dustiness in flue gas.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of flue gas condensing clarifier provided by the utility model;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the structural schematic diagram of inner tube in Fig. 1;
Fig. 4 is a kind of structural schematic diagram of flue gas condensing purification system provided by the utility model.
In figure:
1, inner tube;2, central tube;3, outer tube;4, flue plugboard door;5, wet desulfuration tower;6, chimney;7, cooling water pump;8, Wastewater storage tank;9, waste water delivery pump;
11, tongue;12, swirl vane;
21, cooling water inlet;22, cooling water outlet;
31, wastewater outlet.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1 to Figure 3, the utility model provides a kind of flue gas condensing clarifier, the condensation purifier include by It is interior to the inner tube 1 set gradually outside, central tube 2 and outer tube 3, in which:
Inner tube 1 forms cooling duct, 2 He of central tube for providing the channel of flow of flue gas between inner tube 1 and central tube 2 Waste water tunnel is formed between outer tube 3;The pipe shaft week of inner tube 1 is equipped with multiple tongues 11, and tongue 11 is arranged in cooling duct, inner tube 1 is connected to by tongue 11 with waste water tunnel.The utility model is by flowing flue gas in inner tube, using cooling duct to flue gas Realize condensation, and the dust in flue gas is also due to turbulent flow is attached to the inner wall of inner tube 1, then passes through and 1 pipe shaft of inner tube is arranged in The waste water and dust that generate by condensation are emitted into waste water tunnel by tongue 11 jointly, and then drain into the external world, to reduce cigarette Water content and dustiness in gas.
Specifically, inner tube 1 into flue gas end be equipped with swirl vane 12, using swirl vane 12 rotating centrifugal act on, make Turbulence intensity enhancing of the flue gas in inner tube 1 so that the vapor in flue gas is easier to coagulate, at the same by from The effect of mental and physical efforts, the dust in flue gas can also be easier to be combined with vapor, i.e., by swirl vane 12, so that in flue gas Fine droplet, vapor and dust generate agglomeration, thus greatly reduce the water content and dustiness in flue gas.
Specifically, flue gas is flowed in inner tube 1 and is exchanged heat with the cooling water in central tube 2, reduces flue gas temperature in inner tube 1 Degree, with the reduction of flue-gas temperature, flue gas progressivelyes reach hypersaturated state, thus the vapor in flue gas in inner tube 1 in Wall nearby coagulates.Central tube 2 is equipped with cooling water inlet 21 and cooling water outlet 22, and cooling water inlet 21 is set to central tube 2 Go out flue gas end, cooling water outlet 22 be set to central tube 2 into flue gas end, can have bigger heat exchange temperature by counterflow heat exchange Difference so as to save heat exchange area (i.e. the surface area of central tube 2), and then saves production cost.Further, due to interior It is equipped with multiple tongues 11 the pipe shaft week of pipe 1, tongue 11 can also play the role of increasing the heat exchange area of inner tube 1, while tongue 11 can also play the role of heat exchange fin, to guarantee that the effect of flue gas heat exchange is more excellent.Still further, the length of tongue 11 The one third of the length of inner tube 1 is accounted for 4/5ths, preferably 2/3rds, in the range when, tongue 11 has met To the condensation of flue gas, the discharge of waste water and cooling water is made more swimmingly (to prevent the length of tongue 11 from spending by cooling duct The long resistance increased to flow of cooling water), then so that the length increase of tongue 11 is may result in production cost increase and waste.
Specifically, outer tube 3 is equipped with wastewater outlet 31, and wastewater outlet 31 is located at the flue gas end out of outer tube 3, and is located at outer tube 3 Lowest order.Since the condensed water that flue gas is generated in tail portion (going out flue gas end) condensation of inner tube 1 is more, by wastewater outlet 31 tail portions (going out flue gas end) for being set to outer tube 3 more convenient waste water can be discharged in time, further, wastewater outlet 31 More easily waste water can be discharged for the lowest order (i.e. the minimum position of level height) for being set to outer tube 3.
Specifically, in processing setting angle, preferably using round direct piping, outer tube 3 is preferred for inner tube 1 and central tube 2 Using rectangular direct piping, it can make flue gas condensing clarifier is more convenient to be simply placed in power plant.
As shown in figure 4, a kind of flue gas condensing purification system provided by the utility model comprising it is multiple be arranged in parallel it is upper The flue gas condensing clarifier stated, it is to be understood that it can also be arranged in series using multiple flue gas condensing clarifiers, but for Occupied area and installation cost are preferably arranged in parallel in present embodiment using multiple flue gas condensing clarifiers.
Specifically, in the cigarette of multiple flue gas condensing clarifiers being equipped with into flue gas end for changing flow of flue gas cross-sectional area Road insertion plate door 4, when boiler operatiopn load is lower, the exhaust gas volumn for generation of burning is less, and flue gas flow rate is lower in flue, leads at this time Adjustment flue plugboard door 4 is crossed to reduce the preceding flue area of multiple flue gas condensing clarifiers, keeps multiple flue gas condensing clarifiers The suitable flue gas flow rate of entrance so that the turbulence intensity of flue gas enhances, and then guarantees preferable flue gas condensing clean-up effect.
Specifically, flue gas condensing purification system further includes wet desulfuration tower 5 and chimney 6, wet desulfuration tower 5 and chimney 6 it Between be equipped with multiple flue gas condensing clarifiers being arranged in parallel.Wet desulfuration tower 5 is entered by the flue gas that boiler combustion generates, in wet process It completes to absorb SO in desulfurizing tower 52, 5 exiting flue gas of wet desulfuration tower becomes being saturated because of the spray washing liquid in wet desulfuration tower 5 Wet flue gas contains more vapor and a small amount of dust in flue gas, and with flow of flue gas, flue gas is entered by flue plugboard door 4 Condensation and dust separation are carried out in multiple flue gas condensing clarifiers.
Specifically, flue gas condensing purification system further includes cooling water pump 7, is used to cooling water passing through pressurized delivered at most In a flue gas condensing clarifier being arranged in parallel.Cooling water uses open circulation mode or closed cycle mode, when using enclosed When endless form, cooling water is exchanged heat by heat exchanger, specifically, by the cooling water outlet 22 of multiple flue gas condensing clarifiers The cooling water of output, temperature reduces after heat dissipation (or heat exchange) device, then continues on to multiple cigarettes by cooling water pump 7 The cooling water inlet 21 of gas condensation purifier is changed into the central tube 2 in multiple flue gas condensing clarifiers and with flue gas Heat realizes the condensation and dust separation of flue gas to reduce flue-gas temperature.
Specifically, flue gas condensing purification system further includes wastewater storage tank 8 and waste water delivery pump 9, wastewater storage tank 8 respectively with it is more The wastewater outlet 31 and waste water delivery pump 9 of a flue gas condensing clarifier being arranged in parallel connect.It is collected into useless in outer tube 3 Water, arranged wastewater outlet 31 and waste pipe in 3 tail portion of outer tube are delivered in wastewater storage tank 8, then defeated through waste water delivery pump 9 It send to sewage treatment equipment (not shown) and is further processed, be collected separately, locate so that condensing waste water in flue gas Reason, will not have any impact to 5 water balance of wet desulfuration tower.
In conclusion a kind of flue gas condensing clarifier provided by the utility model and condensation purification system, completely negative in boiler The efficient removal of flue gas condensing and dust can be achieved under lotus and underload, and dust removal efficiency height is, it can be achieved that dust is dense Minimum discharge requirement is spent, simultaneity factor arrangement is simple, and investment cost is low.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and It is not limitations of the embodiments of the present invention.For the ordinary skill user of fields, in above description On the basis of can also make the variation of other different forms or change.There is no need and unable to give thoroughly all embodiments It lifts.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc. should be included in this Within the protection scope of utility model claims.

Claims (10)

1. a kind of flue gas condensing clarifier, which is characterized in that including set gradually from the inside to the outside inner tube (1), central tube (2) and Outer tube (3), said inner tube (1) are formed between said inner tube (1) and the central tube (2) for providing the channel of flow of flue gas Cooling duct forms waste water tunnel between the central tube (2) and the outer tube (3);
The pipe shaft week of said inner tube (1) is equipped with multiple tongues (11), and the tongue (11) is arranged in the cooling duct, described Inner tube (1) is connected to by the tongue (11) with the waste water tunnel.
2. flue gas condensing clarifier according to claim 1, which is characterized in that said inner tube (1) is equipped with into flue gas end Swirl vane (12).
3. flue gas condensing clarifier according to claim 1, which is characterized in that the central tube (2) enters equipped with cooling water Mouth (21) and cooling water outlet (22), the cooling water inlet (21) are set to the flue gas end out of the central tube (2), the cooling Water out (22) be set to the central tube (2) into flue gas end.
4. flue gas condensing clarifier according to claim 1, which is characterized in that the outer tube (3) is equipped with wastewater outlet (31), the wastewater outlet (31) is located at the flue gas end out of the outer tube (3), and is located at the lowest order of the outer tube (3).
5. flue gas condensing clarifier according to claim 1, which is characterized in that said inner tube (1) and the central tube (2) Using round direct piping, the outer tube (3) uses rectangular direct piping.
6. a kind of flue gas condensing purification system, which is characterized in that including it is multiple be arranged in parallel as any in Claims 1 to 5 Flue gas condensing clarifier described in.
7. flue gas condensing purification system according to claim 6, which is characterized in that multiple flue gas condensing clarifiers The flue plugboard door (4) for changing flow of flue gas cross-sectional area is equipped with into flue gas end.
8. flue gas condensing purification system according to claim 6, which is characterized in that further include wet desulfuration tower (5) and cigarette Chimney (6) is equipped with multiple flue gas condensing clarifiers being arranged in parallel between the wet desulfuration tower (5) and the chimney (6).
9. flue gas condensing purification system according to claim 6, which is characterized in that further include cooling water pump (7), be used for Cooling water is delivered in multiple flue gas condensing clarifiers being arranged in parallel;The cooling water using open circulation mode or Closed cycle mode, when using closed cycle mode, the cooling water is exchanged heat by heat exchanger.
10. flue gas condensing purification system according to claim 6, which is characterized in that further include wastewater storage tank (8) and waste water Delivery pump (9), the wastewater storage tank (8) wastewater outlet (31) with multiple flue gas condensing clarifiers being arranged in parallel respectively It is connected with the waste water delivery pump (9).
CN201820822000.3U 2018-05-30 2018-05-30 A kind of flue gas condensing clarifier and condensation purification system Active CN208406486U (en)

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CN201820822000.3U CN208406486U (en) 2018-05-30 2018-05-30 A kind of flue gas condensing clarifier and condensation purification system

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108479270A (en) * 2018-05-30 2018-09-04 烟台龙源电力技术股份有限公司 A kind of flue gas condensing clarifier and condensation purification system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108479270A (en) * 2018-05-30 2018-09-04 烟台龙源电力技术股份有限公司 A kind of flue gas condensing clarifier and condensation purification system

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