CN104826348B - A kind of steam condensed water waste heat that recycles processes the method extracting mixed liquor - Google Patents
A kind of steam condensed water waste heat that recycles processes the method extracting mixed liquor Download PDFInfo
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- CN104826348B CN104826348B CN201510171694.XA CN201510171694A CN104826348B CN 104826348 B CN104826348 B CN 104826348B CN 201510171694 A CN201510171694 A CN 201510171694A CN 104826348 B CN104826348 B CN 104826348B
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- Prior art keywords
- mixed liquor
- condensed water
- extractant
- waste heat
- processes
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002918 waste heat Substances 0.000 title claims abstract description 17
- 238000000605 extraction Methods 0.000 claims abstract description 17
- 239000006200 vaporizer Substances 0.000 claims abstract description 17
- 238000004064 recycling Methods 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims abstract description 11
- 238000009835 boiling Methods 0.000 claims abstract description 10
- 238000009833 condensation Methods 0.000 claims abstract description 9
- 230000005494 condensation Effects 0.000 claims abstract description 9
- 238000002309 gasification Methods 0.000 claims abstract description 6
- 239000002904 solvent Substances 0.000 claims abstract description 6
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 9
- 239000011552 falling film Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 18
- 238000001816 cooling Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses a kind of steam condensed water waste heat that recycles and process the method extracting mixed liquor, it is transported in vaporizer after mixed liquor is measured, and steam condensate (SC) enters vaporizer, the heated gasification of extracting reagent with low boiling point in mixed liquor, the extractant of gasification is discharged into condenser condensation and collects from vaporizer top, collects the extractant that obtains and can be directly entered extraction tank recycling or to get to extractant storage tank standby；Collect the mixed liquor of high-temperature high concentration solvent and the extractant obtained from base of evaporator, after the condensed water after heat exchange using vaporizer to discharge precools, enter back into and secondary coolers is cooled to below room temperature；It is then sent in the mixed liquor storage tank of tank field to wait that next step separating treatment, the condensation water collection after heat exchange rise be used as domestic water and recycle.The waste heat heat that steam condensed water is comprised by the present invention is for processing the mixed liquor after extraction, thus realizes the purpose that the energy makes full use of.
Description
Technical field
The present invention relates to industrial evaporation technical field, a kind of steam condensed water waste heat that recycles processes the method extracting mixed liquor.
Background technology
In modern industry, saturated steam has been widely used as a kind of modal cleaning thermal source source, but due to steam the utilizing main or provided by latent heat of phase change of heat in heat transfer process, the temperature of the condensed water produced after steam heat exchange is general all more than 100 DEG C, the most uneconomical policy guidance meeting energy-saving and emission-reduction the most again if this partial heat is not used.
Summary of the invention
It is an object of the invention to provide a kind of steam condensed water waste heat that recycles making full use of the energy and process the method extracting mixed liquor, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of steam condensed water waste heat that recycles processes the method extracting mixed liquor, and the equipment of use includes effusion meter, vaporizer, condenser, cooler and delivery pump, and cooler includes precooler and secondary coolers, and concrete steps include:
1) it is transported in vaporizer after mixed liquor being measured, tube side walked by mixed liquor, steam condensate (SC) walks shell side, steam condensate (SC) enters from base of evaporator shell side inlet, discharges from top shell-side outlet, in vaporizer, the heated gasification of extracting reagent with low boiling point in mixed liquor, the extractant of gasification is discharged into condenser condensation and collects from vaporizer top, collects the extractant obtained and delivery pump can be utilized to be directly entered extraction tank recycling, or it is standby to be got to extractant storage tank；
2) condensed water after heat exchange that vaporizer is discharged is delivered to precooler, the mixed liquor of high-temperature high concentration solvent and the extractant obtained is collected from base of evaporator, after using the condensed water in precooler to precool, enter back into and secondary coolers is cooled to below room temperature；It is then sent in the mixed liquor storage tank of tank field to wait that next step separating treatment, the condensation water collection after heat exchange rise be used as domestic water and recycle.
As the further scheme of the present invention: the Organic substance being less than 70 DEG C for boiling point of described extractant, the initial boiling point of the high-temperature high concentration solvent extracted is more than 160 DEG C.
As the further scheme of the present invention: described vaporizer is falling film evaporator, its internal structure is shell-and-tube, and tube side is bundles of bundles of tubes, and mixed liquor is walked in inside, and after mixed liquor entrance wherein after distributor uniform distribution, uniformly the inwall along each heat exchanger tube flows down；Shell side walks steam condensate (SC).
As the further scheme of the present invention: described condenser uses tube shell type structure.
As the further scheme of the present invention: described cooler uses tube shell type structure.
As the further scheme of the present invention: the delivery pump that contacts with extractant uses canned motor pump, it is to avoid extractant contacts with the direct of the encapsulant of delivery pump, can extend the service life of pump.
As the further scheme of the present invention: the delivery pump directly contacted with water uses centrifugal pump or canned motor pump, the material of the delivery pump contacted with water uses rustless steel or ordinary carbon steel.
As the further scheme of the present invention: there is the material directly contacted to use the one in rustless steel SUS304, SUS316L or 2205 materials with extractant.
As the further scheme of the present invention: the material of the delivery pump directly contacted with extractant uses rustless steel SUS304 or SUS316L.
As the further scheme of the present invention: the cooling medium employed in condenser and cooler is that temperature is less than the water of 7 DEG C or aqueous saline solution.
Compared with prior art, the invention has the beneficial effects as follows: present invention can apply to the system using lower boiling material as specific extractant, process and separate the mixed liquor containing high boiling solvent discharged from extraction tank, treating capacity is by condensation water quantity produced in line production system, condensate temperature and mixed liquor composition determine, its main principle is that this kind of technique of employing can be by recycling as much as possible for the heat of condensed water, the temperature leaving the condensed water of native system is made to drop to below room temperature, if the whole mixed liquors discharged from extraction tank can not have been processed by intrasystem condensed water, it is pending that unnecessary mixed liquor is delivered directly to mixed liquor storage tank.Why high concentration mixeding liquid temperature is reduced to room temperature by the present invention the following is because if being delivered directly to by the mixed liquor of high-temperature and high concentration in the mixed liquor storage tank of tank field, a large amount of evaporations of extractant can be caused to cause damage.The waste heat heat that steam condensed water is comprised by the present invention is for processing the mixed liquor after extraction, thus realizes the purpose that the energy makes full use of.
Accompanying drawing explanation
Fig. 1 is that reclamation of condensate water utilizes process chart.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, the invention provides a kind of method efficiently utilizing condensation water residual heat, its operation technological process figure is as shown in Figure 1, mainly include that condensed water processes the mixed liquor of separating low concentration, by low-boiling extractant recycling, condensed water after cooling is used for precooling the mixed liquor of high concentration high temperature again, is utilized as domestic water by the condensed water after heat exchange the most again.The condensed water of the saturated steam that the present invention uses absolute pressure to be 0.4Pa, its temperature is 143 DEG C, condensation water quantity is 1500kg/h, extractant is dichloromethane, mixed liquor consists of the mixed liquor of dichloromethane and white oil, form evaporator in native system is falling film evaporator, and vaporizer, heat exchanger and delivery pump use requirement to be as the criterion can reach to meet.In order to make the purpose of the present invention, technical scheme and advantage become apparent from, clearly, below with reference to accompanying drawing 1 and embodiment, the present invention is described in more detail.Specifically include that
Step a: first the condensed water of 143 DEG C is passed through pre-heating device in falling film evaporator.
Step b: when the water temperature discharged from falling film evaporator top is close to condensate temperature, is transported in falling film evaporator after mixed liquor uses effusion meter metering, and mixed liquor flow is 0.5m/h, and wherein dichloromethane flow is 0.45 m/h.
Step c: the condensate temperature after the heat exchange that falling film evaporator is discharged is 25 DEG C, collect after the dichloromethane condensed device cooling that top is discharged, dichloromethane temperature after cooling is 18 DEG C, the dichloromethane herein collected both can directly measure in being transported to extraction tank and reuse, it is also possible to be transported in the extractant storage tank of tank field standby.
Step d: be 90 DEG C from the high-temperature high concentration mixeding liquid temperature of falling film evaporator bottom collection, the condensed water after heat exchange is used to carry out heat exchange cooling in precooler, condensate temperature after heat exchange is increased to 40 DEG C, the high concentration mixed liquor going out precooler is cooled to less than 20 DEG C through secondary coolers again, and the mixed liquor storage tank being transported to tank field waits next step process.
Step e: the domestic water storage tank being transported to tank field from the water of precooler out 40 DEG C is standby.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in the present invention.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (9)
1. recycling the method that steam condensed water waste heat processes extraction mixed liquor, the equipment of use includes effusion meter, vaporizer, condenser, cooler and delivery pump, and cooler includes precooler and secondary coolers, it is characterised in that concrete steps include:
1) it is transported in vaporizer after mixed liquor being measured, tube side walked by mixed liquor, steam condensate (SC) walks shell side, steam condensate (SC) enters from base of evaporator shell side inlet, discharges from top shell-side outlet, in vaporizer, the heated gasification of extracting reagent with low boiling point in mixed liquor, the extractant of gasification is discharged into condenser condensation and collects from vaporizer top, collects the extractant obtained and delivery pump can be utilized to be directly entered extraction tank recycling, or it is standby to be got to extractant storage tank；
2) condensed water after heat exchange that vaporizer is discharged is delivered to precooler, the mixed liquor of high-temperature high concentration solvent and the extractant obtained is collected from base of evaporator, after using the condensed water in precooler to precool, enter back into and secondary coolers is cooled to below room temperature；It is then sent in the mixed liquor storage tank of tank field to wait that next step separating treatment, the condensation water collection after heat exchange rise be used as domestic water and recycle；
Described extractant is the Organic substance that boiling point is less than 70 DEG C, and the initial boiling point of the high-temperature high concentration solvent extracted is more than 160 DEG C.
Recycling steam condensed water waste heat the most according to claim 1 processes the method for extraction mixed liquor, it is characterised in that described vaporizer is falling film evaporator, and its internal structure is shell-and-tube, and tube side is bundles of bundles of tubes.
Recycling steam condensed water waste heat the most according to claim 1 processes the method for extraction mixed liquor, it is characterised in that described condenser uses tube shell type structure.
Recycling steam condensed water waste heat the most according to claim 1 processes the method for extraction mixed liquor, it is characterised in that described cooler uses tube shell type structure.
Recycling steam condensed water waste heat the most according to claim 1 processes the method for extraction mixed liquor, it is characterised in that the delivery pump contacted with extractant uses canned motor pump.
Recycling steam condensed water waste heat the most according to claim 1 processes the method for extraction mixed liquor, it is characterised in that the delivery pump directly contacted with water uses centrifugal pump or canned motor pump, and the material of the delivery pump contacted with water uses rustless steel or ordinary carbon steel.
Recycling steam condensed water waste heat the most according to claim 1 processes the method for extraction mixed liquor, it is characterised in that have the material directly contacted to use the one in rustless steel SUS304, SUS316L or 2205 materials with extractant.
Recycling steam condensed water waste heat the most according to claim 1 processes the method for extraction mixed liquor, it is characterised in that the material of the delivery pump directly contacted with extractant uses rustless steel SUS304 or SUS316L.
Recycling steam condensed water waste heat the most according to claim 1 processes the method for extraction mixed liquor, it is characterised in that the cooling medium employed in described condenser and cooler is that temperature is less than the water of 7 DEG C or aqueous saline solution.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171694.XA CN104826348B (en) | 2015-04-13 | 2015-04-13 | A kind of steam condensed water waste heat that recycles processes the method extracting mixed liquor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171694.XA CN104826348B (en) | 2015-04-13 | 2015-04-13 | A kind of steam condensed water waste heat that recycles processes the method extracting mixed liquor |
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| Publication Number | Publication Date |
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| CN104826348A CN104826348A (en) | 2015-08-12 |
| CN104826348B true CN104826348B (en) | 2016-09-28 |
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| CN201510171694.XA Expired - Fee Related CN104826348B (en) | 2015-04-13 | 2015-04-13 | A kind of steam condensed water waste heat that recycles processes the method extracting mixed liquor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111689834A (en) * | 2020-07-06 | 2020-09-22 | 中材锂膜有限公司 | Wet process lithium cell diaphragm extraction liquid separation economizer |
| CN114777092B (en) * | 2022-04-10 | 2024-01-23 | 上海寰球工程有限公司 | Condensate heat green recovery system and steam condensate heat green recovery method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775914A (en) * | 2005-11-17 | 2006-05-24 | 中国矿业大学 | Oil coal cinder extracting process and equipment |
| CN202576377U (en) * | 2012-04-11 | 2012-12-05 | 老知青集团有限公司 | Camellia oil solvent evaporation device utilizing steam afterheat for heating |
| CN103265091A (en) * | 2013-05-22 | 2013-08-28 | 魏华 | Mechanical ventilation forced circulation evaporation device and liquid material evaporation method |
| CN103830921A (en) * | 2013-12-03 | 2014-06-04 | 长乐恒申合纤科技有限公司 | System and technology for evaporation concentration of extraction water |
| CN204147565U (en) * | 2014-10-17 | 2015-02-11 | 安徽中烟再造烟叶科技有限责任公司 | Tobacco extraction liquid enrichment facility |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5685485B2 (en) * | 2011-05-13 | 2015-03-18 | 日立アプライアンス株式会社 | Solar heat-utilized steam absorption refrigerator and solar heat utilization system |
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- 2015-04-13 CN CN201510171694.XA patent/CN104826348B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775914A (en) * | 2005-11-17 | 2006-05-24 | 中国矿业大学 | Oil coal cinder extracting process and equipment |
| CN202576377U (en) * | 2012-04-11 | 2012-12-05 | 老知青集团有限公司 | Camellia oil solvent evaporation device utilizing steam afterheat for heating |
| CN103265091A (en) * | 2013-05-22 | 2013-08-28 | 魏华 | Mechanical ventilation forced circulation evaporation device and liquid material evaporation method |
| CN103830921A (en) * | 2013-12-03 | 2014-06-04 | 长乐恒申合纤科技有限公司 | System and technology for evaporation concentration of extraction water |
| CN204147565U (en) * | 2014-10-17 | 2015-02-11 | 安徽中烟再造烟叶科技有限责任公司 | Tobacco extraction liquid enrichment facility |
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| CN104826348A (en) | 2015-08-12 |
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