CN104208890A - Steam stripping system and stripping method - Google Patents
Steam stripping system and stripping method Download PDFInfo
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- CN104208890A CN104208890A CN201310210533.8A CN201310210533A CN104208890A CN 104208890 A CN104208890 A CN 104208890A CN 201310210533 A CN201310210533 A CN 201310210533A CN 104208890 A CN104208890 A CN 104208890A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention provides a steam stripping system and a stripping method. The steam stripping system comprises an energy recovery device, a gas-liquid separation device, a steam stripping device and a pump body, wherein the energy recovery device comprises an energy recovery device inlet and an energy recovery device outlet and is used for recovering the static-pressure energy of to-be-processed liquid input through the energy recovery device inlet; the gas-liquid separation device comprises a gas-liquid separation device liquid inlet, a gas-liquid separation device liquid outlet and a gas-liquid separation device gas outlet, and the gas-liquid separation device liquid inlet is connected with the energy recovery device outlet; the steam stripping device is connected with the gas-liquid separation device liquid outlet; the pump body pressurizes liquid discharged out of the steam stripping device and subjected to steam stripping, and then the liquid is output. As the energy recovery device is arranged to recover the static-pressure energy of the to-be-processed liquid, the static-pressure energy of the liquid cannot be wasted during steam stripping, and accordingly, the purpose of making the best of energy is achieved.
Description
Technical field
The present invention relates to chemical technology field, in particular to a kind of stripping system and gas stripping process.
Background technology
Converting condensate liquid stripping system in prior art is utilize steam by the ammonia stripping washed in ammoniacal liquor and low temperature cold lime set out, to reach the object reclaiming condensate liquid and ammonia.In conversion condensate liquid stripping system, wash ammoniacal liquor and cryogenic condensation hydraulic coupling is very high, there is higher static energy, but in current conversion condensate liquid stripping system, this part energy is not used effectively.
Convert condensate liquid stripping system in prior art due to carbon dioxide has extremely strong corrosive power, so cause stripper overhead to be easily corroded simultaneously under the condition of high temperature, high steam.
The shortcoming of prior art: convert condensate liquid static energy in existing conversion condensate liquid stripping system and reclaim, the energy compares waste, and utilize driven by motor pump to send water stripping outside, power consumption is larger, and operating cost is higher simultaneously.And be faced with carbon dioxide corrosion problem.
Summary of the invention
The present invention aims to provide a kind of stripping system and gas stripping process, to reach the object reclaiming static energy in conversion condensate liquid.
To achieve these goals, the invention provides a kind of stripping system, comprise: energy recycle device, comprise energy recycle device entrance and energy recycle device outlet, energy recycle device reclaims the static energy of the pending liquid inputted by energy recycle device entrance; Gas-liquid separation device, comprises gas-liquid separation device liquid inlet, gas-liquid separation device liquid outlet and gas-liquid separation device gas vent, and gas-liquid separation device liquid inlet exports with energy recycle device and is connected; Stripper plant, is connected with gas-liquid separation device liquid outlet; The pump housing, the liquid after the stripping of discharge stripper plant carries out pressurized treatments and exports.
Further, stripping system comprises gas export line, and stripper plant comprises: stripper, and stripper comprises steam inlet, Stripper liquid entrance and Stripper liquid outlet, and Stripper liquid outlet is connected with the entrance of the pump housing; Overhead condenser, overhead condenser is arranged at the upper end of stripper, comprise overhead condenser liquid inlet, overhead condenser liquid outlet, overhead condenser gas access and overhead condenser gas vent, overhead condenser liquid inlet is connected with gas-liquid separation device liquid outlet, Stripper liquid entrance is communicated with overhead condenser liquid outlet, steam after the stripping of stripper enters overhead condenser gas access, and overhead condenser gas vent is communicated with gas export line.
Further, stripping system also comprises the first subsidiary loop, and the first subsidiary loop is communicated with to import ammonium ion and the chlorine ion concentration that desalted water dilutes liquid in overhead condenser with overhead condenser.
Further, stripping system also comprises: the liquid be arranged on stripper regulates mouth; Second subsidiary loop, the second subsidiary loop comprises the first control valve, and the first end of the second subsidiary loop is communicated with gas-liquid separation device liquid outlet, and the second end and the liquid of the second subsidiary loop regulate mouth to be communicated with.
Further, stripping system also comprises the 3rd subsidiary loop of the load for adjusting energy retracting device, 3rd subsidiary loop comprises the second control valve, and the first end of the 3rd subsidiary loop is communicated with energy recycle device entrance, the second end of the 3rd subsidiary loop and energy recycle device outlet.
Further, the power output shaft of energy recycle device is connected to drive the pump housing to move with the power input shaft of the pump housing.
Further, energy recycle device is hydraulic turbine.
Further, gas-liquid separation device is flash vessel.
The invention provides a kind of gas stripping process, adopt above-mentioned stripping system to carry out stripping operation to liquid.
Further, gas stripping process comprises the steps:
S10, pending liquid imported after energy recycle device reclaims static energy and discharges the liquid after recovering energy; S20, the liquid after recovering energy is imported in gas-liquid separation device, after the carbon dioxide in the liquid of separate dissolved after recovering energy, discharge the liquid after being separated from gas-liquid separation device liquid outlet; S30, the liquid after being separated to be imported in stripper plant, after carrying out stripping operation, discharge the liquid after stripping; S40, by after stripping liquid import the pump housing carry out pressurizeing and exporting.
Applying stripping system of the present invention, reclaiming the static energy of pending liquid by arranging energy recycle device, the static energy of aforesaid liquid can not be wasted when stripping operation, thus reach the object that the energy makes full use of.
Further, the carbon dioxide in gas-liquid separation device separating liquid is set, can reduces and even prevent air lift system to be corroded, thus reach the object of economic benefit and the system of the guarantee even running improving enterprise.
Further, the power output shaft of energy recycle device being connected the static energy that energy recycle device can be utilized to reclaim with the power input shaft of the pump housing drives the pump housing to move.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation according to stripping system in the embodiment of the present invention.
Reference numeral in figure: 10, energy recycle device; 11, energy recycle device entrance; 12, energy recycle device outlet; 20, gas-liquid separation device; 21, gas-liquid separation device liquid inlet; 22, gas-liquid separation device liquid outlet; 23, gas-liquid separation device gas vent; 30, stripper plant; 31, stripper; 311, Stripper liquid entrance; 312, Stripper liquid outlet; 313, steam inlet; 314, steam (vapor) outlet; 315, liquid regulates mouth; 32, overhead condenser; 321, overhead condenser liquid inlet; 322, overhead condenser liquid outlet; 323, overhead condenser gas access; 324, overhead condenser gas vent; 40, the pump housing; 55, the first control valve; 51, the second control valve; 52, the 3rd control valve; 54, the 4th control valve; 53, the 5th control valve; 58, the 6th control valve; 56, the 7th control valve; 57, the 8th control valve; 60, gas export line; 71, the first subsidiary loop; 72, the second subsidiary loop; 73, the 3rd subsidiary loop.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 1, embodiments provide a kind of stripping system, comprise energy recycle device 10, gas-liquid separation device 20, stripper plant 30 and the pump housing 40.Energy recycle device 10 comprises energy recycle device entrance 11 and energy recycle device outlet 12.Energy recycle device 10 reclaims the static energy of the pending liquid inputted by energy recycle device entrance 11.Gas-liquid separation device 20 comprises gas-liquid separation device liquid inlet 21, gas-liquid separation device liquid outlet 22 and gas-liquid separation device gas vent 23, and gas-liquid separation device liquid inlet 21 and energy recycle device export 12 and be connected.Stripper plant 30 is connected with gas-liquid separation device liquid outlet 22.The pump housing 40 carries out pressurized treatments for the liquid after the stripping of discharging stripper plant 30 and exports.
Reclaim the static energy of pending liquid by arranging energy recycle device 10, the static energy of aforesaid liquid can not be wasted when stripping operation, thus reach the object that the energy makes full use of.
Stripping system comprises gas export line 60, and stripper plant 30 comprises: stripper 31 and overhead condenser 32.
Stripper 31 comprises steam inlet 313, Stripper liquid entrance 311 and Stripper liquid outlet 312.Stripper liquid outlet 312 is connected with the entrance of the pump housing 40.Overhead condenser 32 is arranged at the upper end of stripper 31, comprises overhead condenser liquid inlet 321, overhead condenser liquid outlet 322, overhead condenser gas access 323 and overhead condenser gas vent 324.Above-mentioned overhead condenser liquid inlet 321 is connected with gas-liquid separation device liquid outlet 22, and Stripper liquid entrance 311 is communicated with overhead condenser liquid outlet 322, and overhead condenser gas vent 324 is communicated with gas export line 60.
Steam (vapor) outlet 314 is also provided with in the embodiment of the present invention.Above-mentioned steam (vapor) outlet 314 is corresponding with overhead condenser gas access 323 to be connected.Above-mentioned overhead condenser gas access 323 is communicated with overhead condenser gas vent 324 by the gas transfer pipeline be arranged in overhead condenser 32.
When above-mentioned stripping system work, pending liquid is directed in energy recycle device 10 by energy recycle device entrance 11 and carries out static energy reclaimer operation, and discharge the liquid after recovering energy from energy recycle device outlet 12.
Above-mentioned recover energy after liquid enter in gas-liquid separation device 20 by gas-liquid separation device entrance 21, with the carbon dioxide in the liquid of separate dissolved after recovering energy.Wherein, the gas of isolated carbon dioxide is exported by gas-liquid separation device gas vent 23, and the liquid after separation is exported by gas-liquid separation device liquid outlet 22.
Liquid after separation is entered in overhead condenser 32 by the overhead condenser liquid inlet 321 being arranged on overhead condenser 32 bottom and carries out preheating, and it is outside to export overhead condenser 32 to from the overhead condenser liquid outlet 322 being arranged on overhead condenser 32 upper end.
Further, overhead condenser liquid outlet 322 is communicated with Stripper liquid entrance 311, and the Stripper liquid entrance 311 that the liquid after overhead condenser 32 preheating is arranged by stripper 31 top is delivered to the inside of stripper 31.Steam enters in stripper 31 by the steam inlet 313 arranged bottom stripper 31, and this steam carries out stripping to the liquid after the preheating in stripper 31 from the bottom to top.
Particularly, the liquid after stripping exports 312 by the Stripper liquid arranged bottom stripper 31 and discharges.The overhead condenser gas access 323 of the steam (vapor) outlet 314 and overhead condenser 32 of the steam after stripping through being arranged at stripper 31 top enters in gas transfer pipeline, and is delivered to gas export line 60 by overhead condenser gas vent 324.Wherein, gas export line 60 is also communicated with the gas-liquid separation device gas vent 23 of gas-liquid separation device 20, so that the gas of stripper plant 30 and gas-liquid separation device 20 is sent to sulfur recovery treatment process.
Liquid after the above-mentioned strippings being exported 312 discharges by Stripper liquid is entered in the pump housing 40 by the entrance of the pump housing 40 and pressurizes, and is delivered to subsequent processing by the outlet of the pump housing 40.Wherein, the power output shaft of energy recycle device 10 is connected to drive the pump housing 40 to move with the power input shaft of the pump housing 40.Particularly, energy recycle device 10 is hydraulic turbine, and gas-liquid separation device 20 is flash vessel.
Stripping system in the embodiment of the present invention also comprises the first subsidiary loop 71.Above-mentioned first subsidiary loop 71 is communicated with overhead condenser 32 to import ammonium ion and the chlorine ion concentration that desalted water dilutes liquid in overhead condenser 32.
Further, stripping system also comprises and is arranged at liquid on stripper 31 and regulates mouth 315 and the second subsidiary loop 72.Above-mentioned second subsidiary loop 72 comprises the first control valve 55, and the first end of the second subsidiary loop 72 is communicated with gas-liquid separation device liquid outlet 22, and the second end and the liquid of the second subsidiary loop 72 regulate mouth 315 to be communicated with.
The flow of the liquid after being separated in stripper 31 can be controlled to enter by the aperture size of adjustment first control valve 55 by arranging the second subsidiary loop 72, thus reach the temperature regulating the gas of being discharged by overhead condenser gas vent 324.
Preferably, stripping system also comprises the 3rd subsidiary loop 73 of the load for adjusting energy retracting device 10.3rd subsidiary loop 73 comprises the second control valve 51, and the first end of the 3rd subsidiary loop 73 is communicated with energy recycle device entrance 11, and the second end and the energy recycle device of the 3rd subsidiary loop 73 export 12 and be communicated with.
As shown in Figure 1, pending liquid is divided into 2 to 3 strands before entering energy recycle device 10,3rd subsidiary loop 73 can control the load of energy recycle device 10 by the aperture of adjustment second control valve 51, simultaneously also to ensure energy recycle device 10 technological process unimpeded when maintenance.
It should be noted that, in the embodiment of the present invention, the pipeline be communicated with the gas-liquid separation device gas vent 23 of gas-liquid separation device 20 is provided with the 3rd control valve 52, the pipeline be communicated with is provided with the 4th control valve 54 with the gas-liquid separation device liquid outlet 22 of gas-liquid separation device 20.3rd control valve 52 is for controlling the pressure of gas-liquid separation device 20, and the 4th control valve 54 is for controlling the liquid level of gas-liquid separation device 20.
Further, the pipeline be communicated with is provided with the 5th control valve 53 with the overhead condenser gas vent 324 of overhead condenser 32, is provided with the 6th control valve 58 with on the pipeline of the outlet of the pump housing 40.5th control valve 53 for controlling the pressure of stripper plant 30, by the 6th control valve 58 for controlling the liquid level of stripper plant 30.
Preferably, the first subsidiary loop 71 is provided with the 7th control valve 56, the pipeline be communicated with is provided with the 8th control valve 57 with the steam inlet 313 of stripper 31.
It should be noted that, in the embodiment of the present invention, stripping system may be used for carrying out stripping to low temperature cold lime set.
Present invention also offers a kind of gas stripping process, this gas stripping process comprises the steps:
S10, pending liquid imported after energy recycle device 10 reclaims static energy and discharges the liquid after recovering energy.S20, the liquid after recovering energy is imported in gas-liquid separation device 20, after the carbon dioxide in the liquid of separate dissolved after recovering energy, discharge the liquid after being separated from gas-liquid separation device liquid outlet 22.S30, the liquid after being separated to be imported in stripper plant 30, after carrying out stripping operation, discharge the liquid after stripping.S40, by after stripping liquid import the pump housing 40 carry out pressurizeing and exporting.
From above description, can find out, the above embodiments of the present invention achieve following technique effect: the static energy reclaiming pending liquid by arranging energy recycle device, and the static energy of aforesaid liquid can not be wasted when stripping operation, thus reach the object that the energy makes full use of.
Further, the carbon dioxide in gas-liquid separation device separating liquid is set, can reduces and even prevent air lift system to be corroded, thus reach the object of economic benefit and the system of the guarantee even running improving enterprise.
Further, the power output shaft of energy recycle device being connected the static energy that energy recycle device can be utilized to reclaim with the power input shaft of the pump housing drives the pump housing to move.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a stripping system, is characterized in that, comprising:
Energy recycle device (10), comprise energy recycle device entrance (11) and energy recycle device outlet (12), described energy recycle device (10) reclaims the static energy of the pending liquid inputted by described energy recycle device entrance (11);
Gas-liquid separation device (20), comprise gas-liquid separation device liquid inlet (21), gas-liquid separation device liquid outlet (22) and gas-liquid separation device gas vent (23), described gas-liquid separation device liquid inlet (21) exports (12) and is connected with described energy recycle device;
Stripper plant (30), is connected with described gas-liquid separation device liquid outlet (22);
The pump housing (40), the liquid after the stripping of discharge described stripper plant (30) carries out pressurized treatments and exports.
2. stripping system according to claim 1, is characterized in that, described stripping system comprises gas export line (60), and described stripper plant (30) comprising:
Stripper (31), described stripper (31) comprises steam inlet (313), Stripper liquid entrance (311) and Stripper liquid outlet (312), and described Stripper liquid outlet (312) is connected with the entrance of the described pump housing (40);
Overhead condenser (32), described overhead condenser (32) is arranged at the upper end of described stripper (31), comprise overhead condenser liquid inlet (321), overhead condenser liquid outlet (322), overhead condenser gas access (323) and overhead condenser gas vent (324), described overhead condenser liquid inlet (321) is connected with described gas-liquid separation device liquid outlet (22), described Stripper liquid entrance (311) is communicated with described overhead condenser liquid outlet (322), steam after the stripping of described stripper enters described overhead condenser gas access (323), described overhead condenser gas vent (324) is communicated with described gas export line (60).
3. stripping system according to claim 2, it is characterized in that, described stripping system also comprises the first subsidiary loop (71), and described first subsidiary loop (71) is communicated with to import ammonium ion and the chlorine ion concentration that desalted water dilutes liquid in described overhead condenser (32) with described overhead condenser (32).
4. stripping system according to claim 2, is characterized in that, described stripping system also comprises:
The liquid be arranged on described stripper (31) regulates mouth (315);
Second subsidiary loop (72), described second subsidiary loop (72) comprises the first control valve (55), the first end of described second subsidiary loop (72) is communicated with described gas-liquid separation device liquid outlet (22), and the second end and the described liquid of described second subsidiary loop (72) regulate mouth (315) to be communicated with.
5. stripping system according to claim 2, it is characterized in that, described stripping system also comprises the 3rd subsidiary loop (73) of the load for regulating described energy recycle device (10), described 3rd subsidiary loop (73) comprises the second control valve (51), the first end of described 3rd subsidiary loop (73) is communicated with described energy recycle device entrance (11), and the second end of described 3rd subsidiary loop (73) exports (12) and is communicated with described energy recycle device.
6. stripping system according to any one of claim 1 to 5, is characterized in that, the power output shaft of described energy recycle device (10) is connected with the power input shaft of the described pump housing (40) to drive the described pump housing (40) to move.
7. stripping system according to any one of claim 1 to 5, is characterized in that, described energy recycle device (10) is hydraulic turbine.
8. stripping system according to any one of claim 1 to 5, is characterized in that, described gas-liquid separation device (20) is flash vessel.
9. a gas stripping process, is characterized in that, adopts the stripping system according to any one of claim 1 to 8 to carry out stripping operation to liquid.
10. gas stripping process according to claim 9, is characterized in that, described gas stripping process comprises the steps:
S10, pending liquid imported after energy recycle device (10) reclaims static energy and discharges the liquid after recovering energy;
S20, the liquid after described recovering energy is imported in gas-liquid separation device (20), after the carbon dioxide in the liquid of separate dissolved after described recovering energy, discharge the liquid after being separated from gas-liquid separation device liquid outlet (22);
S30, the liquid after described separation to be imported in stripper plant (30), after carrying out stripping operation, discharge the liquid after stripping;
S40, by after described stripping liquid import the pump housing (40) carry out pressurizeing and exporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310210533.8A CN104208890B (en) | 2013-05-30 | 2013-05-30 | Stripping system and gas stripping process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310210533.8A CN104208890B (en) | 2013-05-30 | 2013-05-30 | Stripping system and gas stripping process |
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| CN104208890A true CN104208890A (en) | 2014-12-17 |
| CN104208890B CN104208890B (en) | 2016-03-23 |
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| CN201310210533.8A Active CN104208890B (en) | 2013-05-30 | 2013-05-30 | Stripping system and gas stripping process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329965A (en) * | 2015-11-27 | 2016-02-17 | 榆林学院 | Device for removing ammonia gas in semi coke waste water by adopting air extraction method |
| CN105502545A (en) * | 2015-12-16 | 2016-04-20 | 榆林学院 | Device for treating semi coke waste water |
| CN106377916A (en) * | 2016-08-31 | 2017-02-08 | 江苏南大环保科技有限公司 | Falling-film air stripping device with flash evaporation function |
| CN110280040A (en) * | 2019-06-28 | 2019-09-27 | 崔静思 | A kind of device and method of carbon dioxide gas air lift |
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| CN103058295A (en) * | 2012-12-19 | 2013-04-24 | 中国五环工程有限公司 | Technology of low pressure steam stripping shift conversion technical condensed fluid |
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| CN201258317Y (en) * | 2008-06-24 | 2009-06-17 | 贵州赤天化股份有限公司 | Natural gas humidifying system with hydraulic turbine |
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| CN105329965A (en) * | 2015-11-27 | 2016-02-17 | 榆林学院 | Device for removing ammonia gas in semi coke waste water by adopting air extraction method |
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| CN106377916A (en) * | 2016-08-31 | 2017-02-08 | 江苏南大环保科技有限公司 | Falling-film air stripping device with flash evaporation function |
| CN106377916B (en) * | 2016-08-31 | 2019-10-25 | 南京大学 | Falling liquid film stripping device with flash distillation function |
| CN110280040A (en) * | 2019-06-28 | 2019-09-27 | 崔静思 | A kind of device and method of carbon dioxide gas air lift |
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| CN104208890B (en) | 2016-03-23 |
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