CN205886574U - Single tower dual cycle wet flue gas desulfurization's heat transfer collection liquid device and desulfurization system - Google Patents
Single tower dual cycle wet flue gas desulfurization's heat transfer collection liquid device and desulfurization system Download PDFInfo
- Publication number
- CN205886574U CN205886574U CN201620767185.3U CN201620767185U CN205886574U CN 205886574 U CN205886574 U CN 205886574U CN 201620767185 U CN201620767185 U CN 201620767185U CN 205886574 U CN205886574 U CN 205886574U
- Authority
- CN
- China
- Prior art keywords
- value
- liquid collector
- flue gas
- heat exchange
- cooling medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a single tower dual cycle wet flue gas desulfurization's heat transfer collection liquid device and desulfurization system, flue gas get into from the lower end entrance of desulfurizing tower, carry out preliminary purification treatment after low pH value thick liquid sprays, the flue gas of primary cleaning and the heat transfer is carried out with coolant to heat transfer collection liquid device contact, reduces the temperature of flue gas, and the flue gas after the cooling continues to rise, contacts with high pH value thick liquid and carries out deep purification, fume emission after the purification, the back is collected to high pH value thick liquid to collection liquid device, high pH value thick liquid and coolant heat transfer cooling, and the high pH value thick liquid after the cooling follows annular spraying to the flue gas and drenches. Being provided with helical coiled passage in the collection liquid device, letting in coolant in the helical coiled passage, coolant carries out the heat transfer with wet flue gas and high pH value thick liquid, cools down to flue gas and high pH value thick liquid, has improved desulfurization system's desulfurization effect.
Description
Technical field
This utility model belongs to industrial waste gas purifying field of Environment Protection, particularly to a kind of changing of single column Two-way Cycle wet desulphurization
Hot liquid collector and desulphurization system.
Background technology
Single ph value is adopted to run different, single column from conventional limestone-gypsum wet flue gas desulfurizing widely used at present
Two-way Cycle wet process of FGD adopts the double ph value in double loop to run, and the ph value of lower closed circuit is 4.0-5.5, and its Main Function is
Flue gas carried out cool down, pre-wash flue gas and the calcium sulfite oxidation obtaining is become Gypsum Fibrosum；The ph value of upper closed circuit is
5.5-6.5, acts primarily as absorption so2Effect, two loops are separated by liquid collector.This technology has good so2Load ripple
Dynamic buffer capacity, is particularly suitable for the means of flue gas desulfurization of power plant of high sulfur content, high desulfurization efficiency.
Wet Flue Gas Desulfurization Technology, within the specific limits, slurry temperature is lower, so2With caco3Dissolubility in serosity
Bigger overall mass transfer coefficient is also bigger, more effectively can improve desulfuration efficiency although having technology proposition single cycle or single column pair to follow
Ring desulfurization is lowered the temperature the method for potentiation, but the method adopt heat pump combine heat exchanger tower outer to whole serosity or on closed circuit
High ph value serosity is lowered the temperature, the serum recycle spray after cooling, realizes the cooling potentiation of desulphurization system, and adopts heat pump to combine
The outer heat exchange mode of the tower of heat exchanger haves such problems as that system complex, investment cost are high and floor space is big.
Utility model content
For technical problem present in prior art, a purpose of the present utility model is to propose a kind of single column Two-way Cycle
The liquid collector of wet desulphurization, this liquid collector has heat exchange function, while realizing desulfurization double ph value operation, by liquid collecting
Device carries out heat exchange with wet flue gas and high ph value loop slurry, reduces the temperature of flue gas and high ph value loop slurry, on the whole
Improve desulfuration efficiency further, effectively reduce investment operating cost.
Second purpose of the present utility model is to provide a kind of single column Two-way Cycle wet desulfurization system, by described liquid collecting
It is passed through cooling medium in device, wet flue gas and high ph value loop slurry are cooled down, realize desulphurization system dual temperature double ph value fortune
OK, improve the desulfuration efficiency of flue gas further.
3rd purpose of the present utility model is to provide a kind of method carrying out desulfurization to flue gas using described desulphurization system.
In order to solve above technical problem, the technical solution of the utility model is:
A kind of heat exchange liquid collector of single column Two-way Cycle wet desulphurization, it is variable-diameter structure, and the opening diameter of upper end is more than
The diameter of lower end, the wall of liquid collector is double-decker, and double-deck interlayer constitutes the cooling chamber accommodating cooling medium, cold
But cooling medium entrance is left in the lower end of chamber, and cooling medium outlet is left in the upper end of cooling chamber.
Preferably, it is provided with helical duct in described cooling chamber.
Preferably, the width of described cooling chamber is 0.1-0.5m.
It is further preferred that the width of described helical duct is 0.1-0.5m.A kind of single column Two-way Cycle wet desulphurization cold
But system, including cooling medium source and described liquid collector, the cooling medium of pump and described liquid collector is passed through in cooling medium source
Entrance connects, and the cooling medium outlet of liquid collector is connected with cooling medium collection device.
Preferably, described cooling medium collection device is pulping tank.
Cooling medium is water, water after heating enters pulping tank and carries out slurrying, has saved water resource, it is to avoid water resource
Waste.
It is further preferred that being connected with heat exchanger between described liquid collector and pulping tank.Cooling medium after heating leads to
Cross reusable edible after heat exchanger cooling, the heat obtaining through heat exchange can be used for the aspects such as heating.
Preferably, described pump is high-pressure hydraulic pump, and high-pressure hydraulic pump is connected with converter.It is defeated that cooling medium passes through high-pressure hydraulic pump
Send, pump capacity is adjusted by converter and meets system cooling requirement.
A kind of single column Two-way Cycle wet desulfurization system, including described cooling system, low ph value serum recycle system and high ph
Value serum recycle system, low ph value serum recycle system includes interconnective low ph value spraying layer and low ph value slurry tank, high
Ph value serum recycle system includes interconnective high ph value spraying layer and high ph value slurry tank；Low ph value spraying layer, liquid collecting dress
Put and be arranged on from bottom to top in desulfurizing tower with high ph value slurry tank.
Above liquid collector, desulfurizing tower wall is provided with flinger ring, and liquid collector bottom is connected with catheter.After cooling
Serosity flows into high ph value slurry tank by catheter, and flue gas flows through liquid collector and lowered the temperature, and the flue gas after cooling passes through liquid collecting
Space between device and desulfurizing tower enters high ph value from low ph value spray area and sprays area.
A kind of method carrying out desulfurization to flue gas using described desulphurization system, comprises the steps:
Flue gas enters from the lower inlet of desulfurizing tower, carries out preliminary purification process, tentatively after too low ph value serosity spray
The flue gas purifying is contacted with described liquid collector, carries out heat exchange with cooling medium, reduces the temperature of flue gas, and the flue gas after cooling continues
Continuous rising, carries out deep purifying with high ph value slurry liquid contacts, the fume emission after purification；
After liquid collector is collected to high ph value serosity, high ph value serosity is lowered the temperature with cooling medium heat exchange, the high ph after cooling
Value serosity is circulated spray to flue gas.
Preferably, the ph value of described low ph value serosity is 4.0-5.5.
Preferably, the ph value of described high ph value serosity is 5.5-6.5.
Preferably, described cooling medium is cooling water, and the temperature of cooling water is 15-25 DEG C.
It is further preferred that the flow velocity of described cooling medium is 0.5-3m/s.
Preferably, the flue gas after purification discharges after demisting.
Preferably, 10-20 DEG C of the cooling extent through liquid collector for the high ph value serosity purification systems in upper closed circuit, to protect
Demonstrate,prove higher heat exchange efficiency.
The beneficial effects of the utility model are:
1st, it is provided with helical duct in liquid collector of the present utility model, in helical duct, cooling medium can be passed through, cold
But medium and wet flue gas and high ph value serosity carry out heat exchange, flue gas and high ph value serosity are lowered the temperature, improves desulphurization system
Desulfuration efficiency；
2nd, the cooling medium after heating can realize UTILIZATION OF VESIDUAL HEAT IN by heat exchanger heat exchange；
3rd, this utility model is improved to the structure of liquid collector, and by high-pressure hydraulic pump, cooling water is imported collection
In liquid device, the structure of system is simple, does not increase floor space, and the expense that investment runs is low, has broad application prospects.
Brief description
Fig. 1 is single column dual temperature Two-way Cycle wet method fume desulfurizing system schematic diagram；
Fig. 2 is the sectional view of liquid collector.
Wherein: 1- pump, 2- pulping tank, 3- heat exchanger, 4- liquid collector, 5- high ph value spraying layer, 6- desulfurizing tower, the low ph of 7-
Value spraying layer, 8- high ph value slurry tank, 9- high ph value slurry circulating pump, 10- low ph value slurry circulating pump, 11- low ph value serosity
Groove, 12- helical duct.
Specific embodiment
Provide preferred forms of the present utility model below in conjunction with the accompanying drawings.
As shown in Fig. 2 a kind of heat exchange liquid collector 4 of single column Two-way Cycle wet desulphurization, it is variable-diameter structure, the opening of upper end
With diameter greater than the diameter of lower end, the wall of liquid collector 4 is double-decker to mouth, and double-deck interlayer constitutes receiving cooling medium
Cooling chamber, cooling medium entrance is left in the lower end of cooling chamber, and cooling medium outlet is left, as one in the upper end of cooling chamber
Plant embodiment, be provided with helical duct 12 in described cooling chamber, the width of cooling chamber is 0.1-0.5m, preferably 0.2-
0.4m, the width of helical duct 12 is 0.1-0.5m, preferably 0.2-0.4m.
As a kind of embodiment, described liquid collector 4 is similar inverted cone-shaped structure, upper end open with diameter greater than bottom
Diameter, serum outlet is left in the bottom of liquid collector 4, additionally, liquid collector 4 can also be arbitrary variable-diameter structure, liquid collecting
The inwall of device 4 can be the plane tilting, and can be cambered surface of the cambered surface of indent or evagination etc..
As shown in figure 1, a kind of cooling system of single column Two-way Cycle wet desulphurization, including cooling medium source and described liquid collecting dress
Put 4, cooling medium source is connected with the cooling medium entrance of described liquid collector 4 by pump 1, and the cooling medium of liquid collector 4 goes out
Mouth is connected with cooling medium collection device, and cooling medium is cooling water, and cooling water, in the presence of high-pressure hydraulic pump 1, fills from liquid collecting
Put 4 bottom up flowing, flow out from the top cooling medium outlet of liquid collector 4.
As a kind of embodiment, cooling medium collection device is pulping tank 2, and the water after being heated delivers into pulping tank
Slurrying in 2.
As another embodiment, between cooling medium collection device and liquid collector 4, it is connected with heat exchanger 3, cooling
Medium collection device is connected with described pump 1, and cooling water is collected after heat exchanger 3 cooling in cooling medium collection device,
Recycle.
Further, described pump 1 is high-pressure hydraulic pump, and high-pressure hydraulic pump is connected with converter.It is defeated that cold working medium passes through high-pressure hydraulic pump
Send, pump capacity is adjusted by converter and meets system cooling requirement.
As shown in figure 1, a kind of complete single column Two-way Cycle wet desulfurization system, including described cooling system, in desulfurizing tower 6
It is provided with two-layer circulation desulfurization system, upper strata circulation desulfurization system includes high ph value spraying layer 5, high ph value slurry tank 8 and high ph
Value slurry circulating pump 9, high ph value spraying layer 5 is made up of several shower nozzles, and multiple shower nozzles are distributed on the same plane of desulfurizing tower,
The shower nozzle that high ph value serosity in high ph value slurry tank 8 is transported to high ph value spraying layer 5 is sprayed by high ph value slurry circulating pump 9
Drench, the serosity of spray is contacted with flue gas, purifying smoke.After the serosity of spray is collected by liquid collector 4, with liquid collector 4
In cooling medium heat exchange cooling, the serum outlet through liquid collector 4 bottom for the serosity after cooling flows into high ph value slurry tank 8
In, it is circulated utilization.
Lower floor's circulation desulfurization system is located at the lower section of upper strata circulation desulfurization system, including low ph value slurry tank 11, low ph value
Slurry circulating pump 10 and low ph value spraying layer 7, low ph value spraying layer 7 includes multiple shower nozzles, and multiple shower nozzles are distributed in desulfurizing tower 6
Same section on.Serosity in low ph value slurry tank 11 is transported to low ph value spraying layer 7 and enters by low ph value slurry circulating pump 10
Row spray.
The method carrying out desulfurization using above-mentioned desulphurization system, comprises the steps:
The flue gas that boiler is discharged enters in desulfurizing tower 6 from the lower end of desulfurizing tower 6, sprays with from low ph value spraying layer 7 first
Low ph value (between 4-5.5) slurry liquid contacts carry out so2Preliminary purification process, the flue gas after preliminary purification is in desulfurizing tower 6
Contact with heat exchange liquid collector 4 and carry out preliminary heat exchange cooling, afterwards with the high ph value (5.8-6.5 spraying from high ph value spraying layer 5
Between) slurry liquid contacts carry out deep purifying process, this fraction slurries is collected by heat exchange liquid collector 4 and is carried out heat exchange cooling, with
The balance of whole system heat, finally high ph value slurry temperature is consistent with flue-gas temperature after heat exchange, cooling extent 20 DEG C with
Interior, the reduction of temperature can effectively improve desulfuration efficiency.Flue gas after purification is discharged from chimney after demister.
Embodiment 1
The flue gas that boiler is discharged enters in desulfurizing tower 6 from the lower end of desulfurizing tower 6, sprays with from low ph value spraying layer 7 first
Low ph value (ph value is 4.0) slurry liquid contacts carry out so2Preliminary purification process, the flue gas after preliminary purification is in desulfurizing tower 6
Contact with heat exchange liquid collector 4 and carry out preliminary heat exchange cooling, (ph value is with the high ph value spraying from high ph value spraying layer 5 afterwards
5.8) slurry liquid contacts carry out deep purifying process, and heat exchange cooling is collected and carry out by heat exchange liquid collector 4 to this fraction slurries, enter
The temperature of the cooling water in liquid collector 4 is 20 DEG C, with the balance of whole system heat, finally high ph value slurry temperature with change
After heat, flue-gas temperature is consistent, and cooling extent is 10 DEG C, and the flue gas after purification is discharged from chimney after demister.The desulfurization of flue gas
Efficiency is 98.5%.
Embodiment 2
The flue gas that boiler is discharged enters in desulfurizing tower 6 from the lower end of desulfurizing tower 6, sprays with from low ph value spraying layer 7 first
Low ph value (ph value is 5.0) slurry liquid contacts carry out so2Preliminary purification process, the flue gas after preliminary purification is in desulfurizing tower 6
Contact with heat exchange liquid collector 4 and carry out preliminary heat exchange cooling, (ph value is with the high ph value spraying from high ph value spraying layer 5 afterwards
6.5) slurry liquid contacts carry out deep purifying process, and heat exchange cooling is collected and carry out by heat exchange liquid collector 4 to this fraction slurries, enter
The temperature of the cooling water in liquid collector 4 is 20 DEG C, with the balance of whole system heat, finally high ph value slurry temperature with change
After heat, flue-gas temperature is consistent, and cooling extent is 20 DEG C, and the flue gas after purification is discharged from chimney after demister.The desulfurization of flue gas
Efficiency is 99.6%.
Although the above-mentioned accompanying drawing that combines is described to specific embodiment of the present utility model, not to utility model
The restriction of protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, this area
Technical staff does not need to pay the various modifications that creative work can make or deformation still in protection domain of the present utility model
Interior.
Claims (9)
1. a kind of heat exchange liquid collector of single column Two-way Cycle wet desulphurization it is characterised in that: its be variable-diameter structure, the opening of upper end
With diameter greater than the diameter of lower end, the wall of liquid collector is double-decker, and double-deck interlayer constitutes the cold of receiving cooling medium
But chamber, cooling medium entrance is left in the lower end of cooling chamber, and cooling medium outlet is left in the upper end of cooling chamber.
2. heat exchange liquid collector according to claim 1 it is characterised in that: be provided with described cooling chamber spiral lead to
Road.
3. heat exchange liquid collector according to claim 1 it is characterised in that: the width of described cooling chamber be 0.1-
0.5m.
4. heat exchange liquid collector according to claim 2 it is characterised in that: the width of described helical duct be 0.1-
0.5m.
5. according to the arbitrary described heat exchange liquid collector of claim 1-4 it is characterised in that: also include cooling medium source, cooling
Medium source is connected with the cooling medium entrance of described liquid collector by pump, and the cooling medium of liquid collector exports and cooling medium
Collection device connects.
6. heat exchange liquid collector according to claim 5 it is characterised in that: described cooling medium collection device be slurrying
Tank.
7. heat exchange liquid collector according to claim 6 it is characterised in that: be connected between described liquid collector and pulping tank
There is heat exchanger.
8. heat exchange liquid collector according to claim 5 it is characterised in that: described pump be high-pressure hydraulic pump, high-pressure hydraulic pump with
Converter connects.
9. a kind of single column Two-way Cycle wet desulfurization system it is characterised in that: include claim 5-8 arbitrary described heat exchange liquid collecting dress
Put, low ph value serum recycle system and high ph value serum recycle system, low ph value serum recycle system includes interconnective low
Ph value spraying layer and low ph value slurry tank, high ph value serum recycle system includes interconnective high ph value spraying layer and high ph value
Slurry tank；Low ph value spraying layer, liquid collector and high ph value slurry tank are arranged in desulfurizing tower from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620767185.3U CN205886574U (en) | 2016-07-20 | 2016-07-20 | Single tower dual cycle wet flue gas desulfurization's heat transfer collection liquid device and desulfurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620767185.3U CN205886574U (en) | 2016-07-20 | 2016-07-20 | Single tower dual cycle wet flue gas desulfurization's heat transfer collection liquid device and desulfurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205886574U true CN205886574U (en) | 2017-01-18 |
Family
ID=57774287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620767185.3U Active CN205886574U (en) | 2016-07-20 | 2016-07-20 | Single tower dual cycle wet flue gas desulfurization's heat transfer collection liquid device and desulfurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205886574U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076094A (en) * | 2016-07-20 | 2016-11-09 | 山东神华山大能源环境有限公司 | A kind of heat exchange liquid collector, desulphurization system and the method for single column Two-way Cycle wet desulphurization |
| CN110772963A (en) * | 2019-12-19 | 2020-02-11 | 哈尔滨中科天德节能环保科技有限公司 | Desulfurization, dust removal, denitration, waste heat recovery integration are equipped and clean system thereof |
-
2016
- 2016-07-20 CN CN201620767185.3U patent/CN205886574U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076094A (en) * | 2016-07-20 | 2016-11-09 | 山东神华山大能源环境有限公司 | A kind of heat exchange liquid collector, desulphurization system and the method for single column Two-way Cycle wet desulphurization |
| CN106076094B (en) * | 2016-07-20 | 2019-03-05 | 山东神华山大能源环境有限公司 | A kind of heat exchange liquid collector, desulphurization system and the method for the wet desulphurization of single column Two-way Cycle |
| CN110772963A (en) * | 2019-12-19 | 2020-02-11 | 哈尔滨中科天德节能环保科技有限公司 | Desulfurization, dust removal, denitration, waste heat recovery integration are equipped and clean system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103908879B (en) | A kind of Two-way Cycle Wen rod tower flue gas dusting and desulfuring system | |
| CN106139850B (en) | Energy-efficient gas-liquid coupling oxidation SOx/NOx control device | |
| CN105126589B (en) | Ammonia desulfuration equipment and technique | |
| CN109126331A (en) | A kind of device and method for eliminating the coloured plume of wet desulphurization | |
| CN205995240U (en) | A kind of efficient absorption tower being applied to sulphur-containing exhaust gas absorption | |
| CN101428196A (en) | In-hollow column intercrystalline ammonia process of desulfurization, recovery system and method thereof | |
| CN201959716U (en) | Combination ammonia desulfurization tower | |
| CN106076094B (en) | A kind of heat exchange liquid collector, desulphurization system and the method for the wet desulphurization of single column Two-way Cycle | |
| CN105749704A (en) | Ammonium sulphite desulphurization system and process | |
| CN2899917Y (en) | Smoke desulfurizing and denitrifying device by ammonia method | |
| CN104190223A (en) | Liquid phase oxidation flue gas desulfurization, denitration and absorption technology and device | |
| CN106362569A (en) | Ammonia-process desulfurization device and method for stepwise recycling of residual heat of high-temperature flue gas | |
| CN205886574U (en) | Single tower dual cycle wet flue gas desulfurization's heat transfer collection liquid device and desulfurization system | |
| CN104607007B (en) | Flue gas dust removal desulfurization reactor and flue gas desulfurization method | |
| CN203886407U (en) | Flue gas purification and deep afterheat recycling integrated device | |
| CN102580504A (en) | Novel ammonia desulphurization absorption device | |
| CN205517263U (en) | Flue gas heat exchange energy conservation SOx/NOx control device | |
| CN209034090U (en) | A kind of ammonia process of desulfurization flue gas disappears white waste heat depth recovery system | |
| CN107684817A (en) | A kind of flue gas desulfurization process system | |
| CN106215646B (en) | Spent solution regeneration system, cooling system and its regenerated acid production method and cooling means | |
| CN206613386U (en) | Rectification and purification ammonia system is pyrolyzed for the ammonium bicarbonate solution that SCR reacts | |
| CN202506306U (en) | Novel ammonia process desulfurization absorption device | |
| CN107388847A (en) | Heat reclaim unit and technique in flue gas desulfurization and denitration technique | |
| CN206008418U (en) | Energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus | |
| CN209155402U (en) | A kind of device for eliminating the coloured plume of wet desulphurization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 250014 5th floor, Swan Building, 157 Lishan Road, Lixia District, Jinan City, Shandong Province Patentee after: Guoneng (Shandong) energy environment Co.,Ltd. Patentee after: SHANDONG University Address before: 250014 4th floor, South Block B, Lishan Mingjun, 173 Lishan Road, Jinan City, Shandong Province Patentee before: SHANDONG SHENHUA SHANDA ENERGY ENVIRONMENTAL Co.,Ltd. Patentee before: SHANDONG University |
|
| CP03 | Change of name, title or address |