CN104729312B - A kind of partial reflux circulation improves the device of dividing wall type condenser condensation effect - Google Patents
A kind of partial reflux circulation improves the device of dividing wall type condenser condensation effect Download PDFInfo
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- CN104729312B CN104729312B CN201510092807.7A CN201510092807A CN104729312B CN 104729312 B CN104729312 B CN 104729312B CN 201510092807 A CN201510092807 A CN 201510092807A CN 104729312 B CN104729312 B CN 104729312B
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Abstract
The invention discloses the device that a kind of circulation of partial reflux improves dividing wall type condenser condensation effect, dividing wall type condenser one end is provided with dividing wall type condenser inlet, the other end is provided with the dividing wall type condenser-air outlet with reflux gas branch pipe, dividing wall type condenser body connects cooling media, dividing wall type condenser-air outlet with reflux gas branch pipe connects reflux gas power set and demister respectively by pipeline, reflux gas power set connect reflux gas entrance by pipeline, reflux gas entrance is located on dividing wall type condenser, reflux gas porch is provided with adverse current blender, the bottom of the dividing wall type condenser-air exit end with reflux gas branch pipe of dividing wall type condenser is provided with dividing wall type condenser liquid outlet, demister bottom is provided with demister leakage fluid dram, dividing wall type condenser liquid outlet is connected total leakage fluid dram with demister leakage fluid dram by pipeline, demister is exported provided with incoagulable gas.The beneficial effects of the invention are as follows improve condensation efficiency.
Description
Technical field
The invention belongs to technical field of environmental protection in chemical industry, it is related to a kind of partial reflux circulation and improves dividing wall type condenser condensation effect
The device of fruit.
Background technology
Condensation is the separation and recovery that gaseous component is completed by phase transformation as a kind of common elements operating process, extensively
For chemical industry, the numerous areas such as environmental protection, heat energy.The condensation efficiency for how improving dividing wall type condenser is the dynamic of current technology development
One of power.Current technology progress be mainly reflected in dividing wall type condenser cryosurface mode and internal gas flow turbulent fluctuation improve mass transfer and
Heat-transfer capability, including fin, inner screen component, many forms such as internal helicoid component.Condensation process is in the middle part of a gas
Packet point is cooled below arrival dew-point temperature, the process of liquid and its particulate matter is liquefied as, according to kelvin's law, little particle liquid
The vapour pressure of body is greater than the vapour pressure on main body of liquid surface, therefore for condensation process, process from gas phase to liquid-phase conversion
In, particulate matter need to grow up to after certain particle diameter to stablize to be converted to liquid-phase particle state, is in condensation during less than a certain particle diameter
With the dynamic balance state of evaporation.
Existing dividing wall type condenser is main to be considered to improve condensation efficiency from mass transfer and heat transfer angle, but does not consider little particle
Also there is room for promotion in the supersaturated nucleation stage that condensation growth process must undergo, condensation efficiency.
The content of the invention
It is an object of the invention to provide the device that a kind of circulation of partial reflux improves dividing wall type condenser condensation effect, solution
Existing dividing wall type condenser of having determined is main to be considered to improve condensation efficiency from mass transfer and heat transfer angle, but does not consider that little particle condenses
The supersaturated nucleation stage that growth process must undergo, the problem of condensation efficiency is relatively low.
The technical solution adopted in the present invention is to include dividing wall type condenser, and dividing wall type condenser one end is cold provided with dividing wall type
Condenser entrance, the other end is provided with the dividing wall type condenser-air outlet with reflux gas branch pipe, the connection of dividing wall type condenser body
Cooling media, cooling media provides refrigerant to dividing wall type condenser, the dividing wall type condenser-air outlet with reflux gas branch pipe
Connect reflux gas power set and demister respectively by pipeline, reflux gas power set connect reflux gas by pipeline
Entrance, reflux gas entrance is located on dividing wall type condenser, make inside dividing wall type condenser and with between reflux gas branch pipe
The outlet of wall type condenser-air, the pipeline of reflux gas entrance connection constitute a gas passage, and reflux gas porch is provided with
Adverse current blender, between the bottom of the dividing wall type condenser-air exit end with reflux gas branch pipe of dividing wall type condenser is provided with
Wall type condenser liquid outlet, demister bottom is provided with demister leakage fluid dram, dividing wall type condenser liquid outlet and demister leakage fluid dram
Total leakage fluid dram is connected by pipeline, demister is exported provided with incoagulable gas.
Further, the reflux gas entrance is located between the 10%-90% of the vapor path length of dividing wall type condenser.
Further, the gas flow of the dividing wall type condenser-air outlet return with reflux gas branch pipe is that dividing wall type is cold
The 1%-60% of the gas gross to be condensed of condenser porch.
The beneficial effects of the invention are as follows improve condensation efficiency.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram that a kind of partial reflux circulation of the invention improves dividing wall type condenser condensation effect.
In figure, 1. dividing wall type condensers, 2. dividing wall type condenser inlets, the 3. dividing wall type condensers with reflux gas branch pipe
Gas vent, 4. cooling medias, 5. reflux gas power set, 6. demisters, 7. reflux gas entrances, 8. adverse current blenders,
9. dividing wall type condenser liquid outlet, 10. demister leakage fluid drams, 11. total leakage fluid drams, the outlet of 12. incoagulable gas.
Embodiment
With reference to embodiment, the present invention is described in detail.
The present invention is as shown in figure 1, including dividing wall type condenser 1, the one end of dividing wall type condenser 1 enters provided with dividing wall type condenser
Mouth 2, the other end is provided with the dividing wall type condenser-air outlet 3 with reflux gas branch pipe, the connection cooling of the body of dividing wall type condenser 1
Medium 4, cooling media 4 provides refrigerant to dividing wall type condenser 1, the dividing wall type condenser-air outlet 3 with reflux gas branch pipe
Connect reflux gas power set 5 and demister 6 respectively by pipeline, reflux gas power set 5 are connected by pipeline and flowed back
Gas access 7, reflux gas entrance 7 is located on dividing wall type condenser 1, make the inside of dividing wall type condenser 1 and with band reflux gas
The pipeline that the dividing wall type condenser-air outlet 3 of branch pipe, reflux gas entrance 7 are connected constitutes a gas passage, reflux gas
Adverse current blender 8, the outlet of the dividing wall type condenser-air with reflux gas branch pipe 3 one of dividing wall type condenser 1 are provided with entrance 7
The bottom at end is provided with dividing wall type condenser liquid outlet 9, and the bottom of demister 6 is provided with demister leakage fluid dram 10, and dividing wall type condenser goes out
Liquid mouthful 9 is connected total leakage fluid dram 11 with demister leakage fluid dram 10 by pipeline, and demister 6 is provided with incoagulable gas outlet 12.
Reflux gas entrance 6 is located between the 10%-90% of the vapor path length of dividing wall type condenser 1.
Gas to be condensed is entered inside dividing wall type condenser 1 by condensing gas entrance 2, by cooling media 4 send out it is cold
Condensation occurs in the gas passage of dividing wall type condenser 1 after matchmaker's cooling, partly congeals into bulky grain sedimentation or is condensed in and change
Because Gravitational sliding is finally discharged from the dividing wall type condenser liquid outlet 9 of bottom after hot-face surface.Due to the factor of Kelvin effect,
Also there are a large amount of fine droplets in flowing gas, condensed with air-flow to the dividing wall type with reflux gas branch pipe of dividing wall type condenser
Device gas vent 3 flows, and now reflux gas power set 5 export 3 from the dividing wall type condenser-air with reflux gas branch pipe
Place extracts portion gas, (gas of extraction is the 1%-60% of the gas gross to be condensed inputted), is back to reflux gas and enters
At mouth 7, it is sufficiently mixed and is contacted with the condensed gas to be condensed to certain temperature by adverse current blender 8, is in satiety
The nuclei of condensation are provided with the gas in the dividing wall type condenser 1 of state, promote also rapid production in the inner space of dividing wall type condenser 1
Raw condensation, so as to improve condensation effect.Contain more fine liquid in the gas discharged by dividing wall type condenser liquid outlet 9
Drop, is finally discharged, remaining gas is gone out by incoagulable gas after the trapping of the power of high efficiency demister 6 by demister leakage fluid dram 10
Mouth 12 is discharged.
Empirical tests, the present invention, can be by the discharge gas of existing condensing plant by increased reflux cycle system
Condensate concentration lowers 20-50%.The incoagulable gas content in gas to be condensed that is particularly suitable for use in is more than 20% application scenario.
Specific embodiment is set forth below, and the present invention will be described：
Embodiment 1：Input the condensation of the gas containing ethyl acetate.The entrance concentration of ethyl acetate is, 540~1480g/m3,
Carrier gas is mainly nitrogen.Refrigerant is -5 DEG C of chilled waters, when not using reflux, air exit concentration 198-208g/m3, is used
After reflux, in the case of 10% reflux ratio, exhaust concentration 128-135g/m3, exhaust ethyl acetate mass flowrate is obvious
Decline.
Embodiment 2：Input waste gas condensation containing chloroform.The entrance concentration of chloroform is that 2582g/m3, carrier gas is main
For nitrogen.Refrigerant is -10 DEG C, when not using reflux, exhaust outlet concentration 936-971g/m3, after retracting device,
In the case of 6% reflux ratio, exhaust concentration 698-712g/m3.
Embodiment 3：Input the condensation of benzene gas containing diformazan.The entrance concentration of dimethylbenzene is that 269g/m3, carrier gas is mainly nitrogen
Gas.Refrigerant is 4 DEG C, when not using reflux, exhaust outlet concentration 18-19g/m3, after retracting device, in 10% backflow
Than in the case of, exhaust concentration 12-13g/m3.
The method have the advantages that some end face by the way that the discharge portion of condensation process to be recycled back to condensation process, is then condensed
The seed that contained particulate matter is formed as condensate liquid in exhaust provides steam nucleus of condensation, so as to improve condensation efficiency.From cold
The afterbody of solidifying device shunts a part of gas, by power set or airflow injection device be back to the front end of condensing unit with
The gas mixing to be condensed of certain temperature is cooled to, the nuclei of condensation for improving condensation effect are provided for it, while in condenser system
Final outlet set high efficiency demister, fully reclaim condensed drop.
Described above is only the better embodiment to the present invention, not makees any formal limit to the present invention
System, any simple modification that every technical spirit according to the present invention is made to embodiment of above, equivalent variations and modification,
Belong in the range of technical solution of the present invention.
Claims (1)
1. a kind of partial reflux circulation improves the device of dividing wall type condenser condensation effect, including dividing wall type condenser (1), partition
Formula condenser (1) one end is provided with dividing wall type condenser inlet (2), and the other end is provided with the dividing wall type condenser with reflux gas branch pipe
Gas vent (3), dividing wall type condenser (1) body connection cooling media (4), cooling media (4) is carried to dividing wall type condenser (1)
Cooling matchmaker, it is characterised in that：Dividing wall type condenser-air outlet (3) with reflux gas branch pipe connects backflow by pipeline respectively
Aerodynamic device (5) and demister (6), reflux gas power set (5) connect reflux gas entrance (7) by pipeline, return
Gas access (7) are flowed to be located on dividing wall type condenser (1), make dividing wall type condenser (1) internal and with reflux gas branch pipe
Dividing wall type condenser-air outlet (3), the pipeline of reflux gas entrance (7) connection constitute a gas passage, and reflux gas enters
Mouth (7) place is provided with adverse current blender (8), and the dividing wall type condenser-air with reflux gas branch pipe of dividing wall type condenser (1) goes out
The bottom of mouth (3) one end is provided with dividing wall type condenser liquid outlet (9), and demister (6) bottom is provided with demister leakage fluid dram (10),
Wall type condenser liquid outlet (9) is connected total leakage fluid dram (11) with demister leakage fluid dram (10) by pipeline, and demister (6) is provided with
Incoagulable gas exports (12)；The reflux gas entrance (7) is located at the vapor path length of dividing wall type condenser (1)
Between 10%-90%；The gas flow of dividing wall type condenser-air outlet (3) backflow with reflux gas branch pipe is dividing wall type
The 1%-60% of the gas gross to be condensed at condenser inlet (2) place.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510092807.7A CN104729312B (en) | 2015-03-02 | 2015-03-02 | A kind of partial reflux circulation improves the device of dividing wall type condenser condensation effect |
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| CN201510092807.7A CN104729312B (en) | 2015-03-02 | 2015-03-02 | A kind of partial reflux circulation improves the device of dividing wall type condenser condensation effect |
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| CN104729312A CN104729312A (en) | 2015-06-24 |
| CN104729312B true CN104729312B (en) | 2017-11-07 |
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| CN111495102B (en) * | 2020-05-07 | 2022-04-05 | 扬州市朝晖环境工程有限公司 | Circulation type adjustable exhaust-gas treatment equipment |
| CN113418405A (en) * | 2021-06-01 | 2021-09-21 | 中广核工程有限公司 | Method and system for preventing nuclear power condenser from freezing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2262919A1 (en) * | 1972-12-22 | 1974-07-11 | Jogindar Mohan Dr Ing Chawla | CONDENSER FOR STEAM MEDIA |
| JP3572250B2 (en) * | 2000-10-24 | 2004-09-29 | 三菱重工業株式会社 | Condenser for refrigerator |
| CN1846826A (en) * | 2006-04-06 | 2006-10-18 | 天津大学 | Distillation condenser for high solidifying point material and its evaporation and condensation process |
| CN100494855C (en) * | 2007-05-09 | 2009-06-03 | 云南云天化股份有限公司 | Self cleaning method for condenser for cooling easily condensate |
| CN203582809U (en) * | 2013-11-14 | 2014-05-07 | 永胜县益农新能源开发有限公司 | Condenser |
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