CN206582883U - A kind of indirect cooling system of coal-burning power plant's smoke evacuation - Google Patents
A kind of indirect cooling system of coal-burning power plant's smoke evacuation Download PDFInfo
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- CN206582883U CN206582883U CN201720215648.XU CN201720215648U CN206582883U CN 206582883 U CN206582883 U CN 206582883U CN 201720215648 U CN201720215648 U CN 201720215648U CN 206582883 U CN206582883 U CN 206582883U
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- heat exchanger
- pond
- water inlet
- cooling system
- desulfurizing tower
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
A kind of indirect cooling system of coal-burning power plant's smoke evacuation, this technique includes desulfurizing tower, desulfurization slurry pond, desulfurization slurry cooling system and flue gas cool-down system.The desulfurization slurry cooling system and flue gas cool-down system are used as heat transferring medium using seawater, the desulfurization slurry cooling system realizes the heat exchange between seawater and desulfurization slurry by the heat exchanger being arranged in desulfurization slurry pond, reduce desulfurization slurry temperature, and flue-gas temperature in desulfurizing tower, final reduction desulfurizing tower exhaust gas temperature are reduced indirectly.The flue gas cool-down system realizes the heat exchange between seawater and flue gas by the heat exchanger being arranged in gas approach, reduces desulfurizing tower entrance flue gas temperature, and finally reduces desulfurizing tower exhaust gas temperature.This method is by the use of the seawater resources enriched near thermal power plant as heat transferring medium, and it is marine greatly that the seawater after heat exchange only needs simple cooling to be discharged into after handling, and its is reasonable in design, simple structure, greatly reduces flue gas cool-down cost.
Description
Technical field
The utility model is related to a kind of desulfurizing tower reduction exhaust gas temperature technical field, and in particular to a kind of coal-burning power plant's smoke evacuation
Indirect cooling system.
Background technology
In wet flue gas desulfurization technique, on the one hand, when desulfurizing tower export exhaust gas temperature it is higher when, too high smoke evacuation
Temperature can cause the moisture in flue gas to increase, and cause the loss of moisture in desulfurizing tower, result even in and go out in chimney breast
Existing white wet plume, on the other hand, if flue-gas temperature is too high in desulfurizing tower, can increase the treatment quantity of desulfurizing tower, reduce cigarette
Gas residence time, final reduction desulfurizing tower desulfuration efficiency.
In order to overcome drawbacks described above, prior art sets flue gas waste heat recovery system generally by desulfurizing tower exhanst gas outlet
System, the system realizes the heat exchange between flue gas and coolant media such as demineralized water by heat exchanger, in the same of reduction exhaust gas temperature
When can also reduce the absolute moisture content in flue gas, realize the recovery of moisture in flue gas.
Existing technology is primarily present following shortcoming：
1. exchanged heat to realize with desulfurizing tower exiting flue gas, it is necessary to by coolant media such as demineralized water etc. by water pump lifting
To exhanst gas outlet, realize that this process needs to consume big energy, operating cost is higher；
2. cooled only for desulfurizing tower exiting flue gas, it is impossible to effectively reduce inside desulfurizing tower entrance and desulfurizing tower
Flue-gas temperature；
3. the moisture reclaimed can not be entered directly into inside desulfurizing tower, moisture benefit need to be carried out to desulfurizing tower by other devices
Fill.
Therefore, it is badly in need of the smoke evacuation cooling system that a kind of cost is low, desulfurized effect is good at present.
Utility model content
The purpose of this utility model is to provide a kind of indirect cooling system of coal-burning power plant's smoke evacuation, solves desulfurizing tower outlet smoke evacuation
Temperature is too high, flue gas moisture content is excessive, causes moisture loss in desulfurizing tower, or even white wet cigarette occur in chimney outlet
The phenomenon of plumage；When flue-gas temperature is too high also in solution desulfurizing tower simultaneously, caused treatment quantity and flue gas flow rate are excessive, so that
The problem of reducing desulfurizing tower desulfuration efficiency；And existing desulfurizing tower tail flue gas heat exchange mode, the problem of operation energy consumption is big.
To achieve the above object, the utility model is adopted the following technical scheme that：
A kind of indirect cooling system of coal-burning power plant's smoke evacuation, including desulfurizing tower and desulfurization slurry pond, the bottom of the desulfurizing tower
Provided with gas approach, top is provided with exhaust pass, it is characterised in that：Also include desulfurization slurry cooling system and flue gas cool-down system
System；
The desulfurization slurry cooling system includes the water inlet of the heat exchanger one being arranged in desulfurization slurry pond and heat exchanger one
Water inlet pipe one that mouth is connected, the outlet pipe one and first medium terminal that are connected with the delivery port of heat exchanger one, it is described
First medium terminal includes transfer medium pool one, and the side of the transfer medium pool one passes through pond water inlet pipe one and medium source
Connection, opposite side is connected by water inlet pipe one with heat exchanger one；The water inlet pipe one is provided with intake pump one, the pond water inlet
Pipe one is provided with pond intake pump one；
Heat exchanger two that the flue gas cool-down system includes being arranged in gas approach, it is connected with the water inlet of heat exchanger two
The water inlet pipe two connect, the outlet pipe two and second medium terminal that are connected with the delivery port of heat exchanger two, described second is situated between
Matter terminal includes transfer medium pool two, and the side of the transfer medium pool two is connected by pond water inlet pipe two with medium source,
Opposite side is connected by water inlet pipe two with heat exchanger two；The water inlet pipe two is provided with intake pump two, the pond water inlet pipe one
It is provided with pond intake pump two.
As optimal technical scheme of the present utility model, the heat transferring medium in the heat exchanger one or heat exchanger two is sea
Water, accordingly, the first medium terminal or second medium terminal are seawater terminal, and the medium source is seawater water
Source.
It is further preferred that the heat exchanger one is supported admittedly in desulfurization slurry pond by heat exchanger fixed support
It is fixed.
It is further preferred that the heat exchanger one and heat exchanger two are respectively arranged with control between water inlet and water inlet pipe
Valve one and control valve two.
It is further preferred that the desulfurization slurry pond is arranged on the inside of desulfurizing tower, or it is arranged on outside desulfurizing tower and desulfurization
Tower passes through pipeline communication.
Further, the delivery port of the outlet pipe one and outlet pipe two is connected to dielectric film filter pond, and the medium is returned
Medium in receives pond can enter recycling system after being handled through cooling or be directly discharged into sea.
The utility model has the characteristics that and beneficial effect compared with prior art：
1. the utility model reduces desulfurization by the use of the abundant seawater resources of thermal power plant's annex as heat transferring medium by seawater
Slurry temperature and desulfurizing tower entrance flue gas temperature in tower, so as to reduce the exhaust gas temperature of desulfurizing tower indirectly；
2. the utility model exports exhaust gas temperature by reducing desulfurizing tower, the water content in flue gas is reduced, so as to realize de-
The recovery of moisture in sulphur tower tail flue gas, further eliminates the white wet plume phenomenon of chimney breast；
3. the utility model can also effectively reduce flue gas in desulfurizing tower while the recovery of moisture in realizing flue gas
Temperature, can by coal-burning power plant's exhaust gas temperature reduce 5-15 DEG C, reduce desulfurizing tower treatment quantity, improve desulfurizing tower desulfurization
Efficiency；
4. the utility model can carry out depth according to the environment temperature of Various Seasonal to the exhaust gas temperature that desulfurizing tower is exported
Regulation.
Brief description of the drawings
By the detailed description made in conjunction with the following drawings, of the present utility model above-mentioned and/or other aspects and advantage will
Become more apparent upon and be easier to understand, these accompanying drawings are schematical, are not intended to limit the utility model, wherein：
Fig. 1 is the overall structure diagram of embodiment one of the present utility model；
Fig. 2 is the overall structure diagram of embodiment two of the present utility model.
Reference：1- desulfurizing towers, 2- desulfurization slurries pond, 3- heat exchangers one, 4- water inlet pipes one, 5- outlet pipes one, 6- enter
Water pump one, 7- ponds intake pump one, 8- seawater pond one, 9- control valves one, 10- heat exchangers two, 11- water inlet pipes two, 12- outlet pipes
2nd, 13- intake pumps two, 14- ponds intake pump two, 15- ponds water inlet pipe two, 16- seawater pond two, 17- control valves two, 18- sprays
Drenching layer, 19- gas approach, 20- heat exchangers fixed support, 21- ponds water inlet pipe one, 22- exhaust pass.
Embodiment
The embodiment of the indirect cooling system of coal-burning power plant's smoke evacuation of the present utility model is described with reference to the accompanying drawings.
The embodiment recorded herein is specific embodiment of the present utility model, of the present utility model for illustrating
Design, is explanatory and exemplary, should not be construed as the limit to the utility model embodiment and the utility model scope
System.Except the implementation exception recorded herein, those skilled in the art can also be public based on the application claims and specification institute
The content opened includes doing using the embodiment to recording herein using obvious other technical schemes, these technical schemes
Go out the technical scheme of any obvious substitutions and modifications.
The accompanying drawing of this specification is schematic diagram, aids in illustrating design of the present utility model, it is schematically indicated each several part
Shape and its correlation.The structure of each part for the ease of clearly showing the utility model embodiment is note that, respectively
Do not drawn between accompanying drawing according to identical ratio.Identical reference marker is used to represent identical part.
The utility model is related to a kind of indirect cooling system of coal-burning power plant's smoke evacuation, is the seawater money being distributed using coastal area
Source, desulfurizing tower exhaust gas temperature is reduced by desulfurization slurry cooling system and flue gas cool-down system jointly.Including the He of desulfurizing tower 1
Desulfurization slurry pond 2, desulfurization slurry pond 2 is arranged on the outside of desulfurizing tower 1, as shown in figure 1, desulfurization slurry pond is arranged on desulfurizing tower 1
Pass through pipeline communication with desulfurizing tower 1 outside；Desulfurization slurry pond 2 can also be arranged on to the inside of desulfurizing tower 1, desulfurization as shown in Figure 2
The bottom of tower 1 is provided with gas approach 19, and top is provided with exhaust pass 22, in addition to desulfurization slurry cooling system and flue gas cool-down system
System；Heat exchanger 1 that desulfurization slurry cooling system includes being arranged in desulfurization slurry pond 2, it is connected with the water inlet of heat exchanger 1
The water inlet pipe 1 connect, the outlet pipe 1 and first medium terminal that are connected with the delivery port of heat exchanger 1, first medium
Terminal includes transfer medium pool 1, and the side of transfer medium pool 1 is connected by pond water inlet pipe 1 with medium source, separately
Side is connected by water inlet pipe 1 with heat exchanger 1；Heat exchanger 1 passes through heat exchanger fixed support 20 in desulfurization slurry pond 2
Fixation is supported, the various structures of heat exchanger fixed support 20, general pipeline fixing bracket can be used, be set on water inlet pipe 1
There is intake pump 1, pond water inlet pipe 1 is provided with pond intake pump 1；Within the system, seawater passes through pond intake pump one
7 are entered in transfer medium pool 1 i.e. seawater pond, and the seawater in seawater pond is entered in heat exchanger 1 by intake pump 1 again
Exchanged heat with desulfurization slurry, low-temp desulfurization slurries are contacted by spraying layer 18 with flue gas adverse current in desulfurizing tower, so as to reduce de-
Sulphur tower exhaust gas temperature.
Flue gas cool-down system includes being arranged on the heat exchanger 2 10 in gas approach 19, the water inlet phase with heat exchanger 2 10
The water inlet pipe 2 11 of connection, the outlet pipe 2 12 and second medium terminal being connected with the delivery port of heat exchanger 2 10, the
Second medium terminal includes transfer medium pool 2 16, and the side of transfer medium pool 2 16 passes through pond water inlet pipe 2 15 and medium source
Connection, opposite side is connected by water inlet pipe 2 11 with heat exchanger 2 10；Water inlet pipe 2 11 is provided with intake pump 2 13, pond water inlet
Pipe 2 15 is provided with pond intake pump 2 14.Heat exchanger 1 and heat exchanger 2 10 are set respectively between water inlet and water inlet pipe
There are control valve 1 and control valve 2 17.Within the system, seawater enters transfer medium pool 2 16 by pond intake pump 2 14
I.e. in seawater pond, seawater in seawater pond is entered in heat exchanger 2 10 by intake pump 2 13 exchanged heat with flue gas again, is dropped
Low desulfurizing tower entrance flue gas temperature, so as to reduce desulfurizing tower exhaust gas temperature indirectly.
Wherein, the heat transferring medium in preferred heat exchanger 1 or heat exchanger 2 10 is seawater, accordingly, first medium transfer
Stand or second medium terminal is seawater terminal, medium source is seawater water source.The water outlet of outlet pipe 1 and outlet pipe 2 12
After the medium that mouth is connected in dielectric film filter pond, the dielectric film filter pond is handled through cooling, it can recycle or be directly discharged into
Sea.Meanwhile, desulfurization slurry cooling system and flue gas cool-down system can share seawater pond.
Preferred embodiment of the present utility model is these are only, it is all in the utility model not to limit the utility model
Spirit and principle within, any modification, equivalent substitution and improvements made etc. should be included in protection model of the present utility model
Within enclosing.
Claims (6)
- The indirect cooling system 1. a kind of coal-burning power plant discharges fume, including desulfurizing tower（1）With desulfurization slurry pond（2）, the desulfurizing tower（1） Bottom be provided with gas approach（19）, top is provided with exhaust pass（22）, it is characterised in that：Also include desulfurization slurry cooling system With flue gas cool-down system；The desulfurization slurry cooling system includes being arranged on desulfurization slurry pond（2）Interior heat exchanger one（3）And heat exchanger one（3） The water inlet pipe one that is connected of water inlet（4）And heat exchanger one（3）The outlet pipe one that is connected of delivery port（5）And first Medium terminal, the first medium terminal includes transfer medium pool one（8）, the transfer medium pool one（8）Side lead to Cross pond water inlet pipe one（21）Connected with medium source, opposite side passes through water inlet pipe one（4）With heat exchanger one（3）Connection；It is described enter Water pipe one（4）It is provided with intake pump one（6）, the pond water inlet pipe one（21）It is provided with pond intake pump one（7）；The flue gas cool-down system includes being arranged on gas approach（19）Interior heat exchanger two（10）And heat exchanger two（10）Enter The water inlet pipe two that the mouth of a river is connected（11）And heat exchanger two（10）The outlet pipe two that is connected of delivery port（12）And second be situated between Matter terminal, the second medium terminal includes transfer medium pool two（16）, the transfer medium pool two（16）Side lead to Cross pond water inlet pipe two（15）Connected with medium source, opposite side passes through water inlet pipe two（11）With heat exchanger two（10）Connection；It is described Water inlet pipe two（11）It is provided with intake pump two（13）, the pond water inlet pipe two（15）It is provided with pond intake pump two（14）.
- The indirect cooling system 2. coal-burning power plant according to claim 1 discharges fume, it is characterised in that：The heat exchanger one（3） With heat exchanger two（10）In heat transferring medium be seawater, accordingly, the first medium terminal and second medium terminal are equal For seawater terminal, the medium source is seawater water source.
- The indirect cooling system 3. coal-burning power plant according to claim 1 discharges fume, it is characterised in that：The heat exchanger one（3） In desulfurization slurry pond（2）It is interior to pass through heat exchanger fixed support（20）It is supported fixation.
- The indirect cooling system 4. coal-burning power plant according to claim 1 discharges fume, it is characterised in that：The heat exchanger one（3） With heat exchanger two（10）Control valve one is respectively arranged between water inlet and water inlet pipe（9）With control valve two（17）.
- The indirect cooling system 5. coal-burning power plant according to claim 1 discharges fume, it is characterised in that：The desulfurization slurry pond （2）It is arranged on desulfurizing tower（1）Inside, or be arranged on desulfurizing tower（1）Outside and desulfurizing tower（1）Pass through pipeline communication.
- The indirect cooling system 6. the coal-burning power plant according to Claims 1 to 5 any one discharges fume, it is characterised in that：It is described Outlet pipe one（5）With outlet pipe two（12）Delivery port be connected to medium in dielectric film filter pond, the dielectric film filter pond through drop Enter recycling system after temperature processing or be directly discharged into sea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720215648.XU CN206582883U (en) | 2017-03-07 | 2017-03-07 | A kind of indirect cooling system of coal-burning power plant's smoke evacuation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720215648.XU CN206582883U (en) | 2017-03-07 | 2017-03-07 | A kind of indirect cooling system of coal-burning power plant's smoke evacuation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206582883U true CN206582883U (en) | 2017-10-24 |
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ID=60113137
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720215648.XU Active CN206582883U (en) | 2017-03-07 | 2017-03-07 | A kind of indirect cooling system of coal-burning power plant's smoke evacuation |
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| CN (1) | CN206582883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413427A (en) * | 2018-03-06 | 2018-08-17 | 浙江哲丰能源发展有限公司 | Coal-burning power plant's waste-heat recovery device |
-
2017
- 2017-03-07 CN CN201720215648.XU patent/CN206582883U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413427A (en) * | 2018-03-06 | 2018-08-17 | 浙江哲丰能源发展有限公司 | Coal-burning power plant's waste-heat recovery device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Longyuan environmental protection Co.,Ltd. Patentee after: STATE GRID ZHEJIANG BEILUN NO.3 POWER GENERATION Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Patentee before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. Patentee before: STATE GRID ZHEJIANG BEILUN NO.3 POWER GENERATION Co.,Ltd. |
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| CP03 | Change of name, title or address |