CN207575799U - Twin-stage MVR evaporation crystallization equipments - Google Patents
Twin-stage MVR evaporation crystallization equipments Download PDFInfo
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- CN207575799U CN207575799U CN201721614663.8U CN201721614663U CN207575799U CN 207575799 U CN207575799 U CN 207575799U CN 201721614663 U CN201721614663 U CN 201721614663U CN 207575799 U CN207575799 U CN 207575799U
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- evaporator
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- 238000001704 evaporation Methods 0.000 title claims abstract description 24
- 230000008020 evaporation Effects 0.000 title claims abstract description 17
- 238000002425 crystallisation Methods 0.000 title claims abstract description 12
- 230000008025 crystallization Effects 0.000 title claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 40
- 239000007791 liquid phase Substances 0.000 claims abstract description 15
- 238000010612 desalination reaction Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 10
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 10
- 239000004571 lime Substances 0.000 claims abstract description 10
- 239000012071 phase Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000003889 chemical engineering Methods 0.000 abstract description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 49
- 229960001760 dimethyl sulfoxide Drugs 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Abstract
The utility model is mainly used in Chemical Engineering and Technology field, and more particularly to a kind of twin-stage MVR evaporation crystallization equipments, including level-one evaporator and secondary evaporimeter, level-one evaporator inlet is communicated in raw material feeding pipe, and outlet is in level-one separation chamber；Circulation line is formed between secondary evaporimeter entrance and exit and the second-order separation room, the second-order separation room is communicated in desalter by liquid phase, and the liquid phase after the separation of level-one separation chamber and the liquid phase after desalination are respectively communicated with the entrance of the secondary evaporimeter in circulation line；Level-one separation chamber is communicated in stage compressor entrance by vapour phase, and the second-order separation room is communicated in split-compressor entrance by vapour phase, and split-compressor outlet is in stage compressor entrance；Level-one evaporator and secondary evaporimeter heating side entrance are respectively communicated in stage compressor outlet, and heating side outlet is respectively communicated in lime set storage tank.By the implementation of the equipment, equipment investment can be substantially reduced, reduces process energy consumption, simplifies technological operation and control.
Description
Technical field
The utility model is related to a kind of twin-stage MVR evaporation crystallization equipments, are mainly used in Chemical Engineering and Technology field.
Background technology
In the production and application process of dimethyl sulfoxide (DMSO), the desalination and recycling of dimethyl sulfoxide (DMSO) are essential technique
Demand.The desalinating process of dimethyl sulfoxide (DMSO) is generally realized using the method for evaporation.In process of production, evaporation needs external steam
Heat is provided, the dimethyl sulfoxide (DMSO) evaporated also needs to carry out condensation recycling, since dimethyl sulfoxide (DMSO) is in the temperature more than 140 DEG C
It is lower easily to decompose, it could even be possible to causing work safety accident.In order to improve the product quality of dimethyl sulfoxide (DMSO), ensure production peace
Entirely, the temperature in production process should be less than 100 DEG C.Under more than manufacturing technique requirent, existing production technology equipment investment is big, work
Skill high energy consumption, technological operation and control are complicated.
Utility model content
The technical problems to be solved in the utility model is：A kind of twin-stage MVR evaporation crystallization equipments are provided, are meeting dimethyl
In the case of the desalination quality of production and technological requirement of the materials such as sulfoxide, it is possible to reduce equipment investment reduces process energy consumption, simplifies
Operation and control improves production efficiency and reliability.
Twin-stage MVR evaporation crystallization equipments described in the utility model, including level-one evaporator and secondary evaporimeter, level-one is steamed
Hair device entrance is communicated in raw material feeding pipe, and outlet is in level-one separation chamber；Secondary evaporimeter entrance and exit and two fractions
From circulation line is formed between room, the second-order separation room is communicated in desalter, the liquid phase of level-one separation chamber and desalination by liquid phase
Liquid phase after device desalination is respectively communicated with the arrival end of the secondary evaporimeter in circulation line；Level-one separation chamber is connected by vapour phase
In stage compressor entrance, the second-order separation room is communicated in split-compressor entrance by vapour phase, split-compressor outlet in
Stage compressor entrance；Level-one evaporator and secondary evaporimeter heating side entrance are respectively communicated in stage compressor outlet, heating
Side outlet is respectively communicated in lime set storage tank.
The level-one evaporator is falling film evaporator.
The secondary evaporimeter is forced circulation evaporator with horizontal tubes.
The stage compressor and the type of split-compressor include lobed rotor compressor and centrifugal compressor.
The beneficial effects of the utility model are：
The equipment is in the desalination and recycling that the heat sensitive materials such as dimethyl sulfoxide (DMSO) are carried out using twin-stage MVR evaporative crystallization techniques
In the process, feed liquid increases, dimethyl sulphoxide solution evaporating temperature after level-one evaporator evaporation and concentration with the concentration of salt
It increases, by the setting of split-compressor, makes the pressure of the second-order separation room that can realize that two level is steamed less than level-one separation chamber
Hair device meets manufacturing technique requirent in the case where not improving evaporating temperature.In operational process of craft, level-one evaporator and two
The heat source of grade evaporator is that the steam evaporated by itself provides after compressor compresses, and does not need to external steam and carries
For greatly reducing the consumption of external steam；The steam (i.e. dimethyl sulfoxide (DMSO)) evaporated to evaporator while heating, certainly
Body is condensed into lime set, eliminates the process equipment of steam condensation and technique consumption；Compared with traditional evaporation technology, this method and
Device structure is simple, and control point is few, greatly reduces equipment investment, simplifies technological operation and control.
It, can in the case where ensureing the requirement of desalination production technology of the heat sensitive materials such as dimethyl sulfoxide (DMSO) by the implementation of equipment
To substantially reduce equipment investment, process energy consumption is reduced, simplifies technological operation and control.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：1st, level-one evaporator；2nd, stage compressor；3rd, split-compressor；4th, the second-order separation room；5th, dual evaporation
Device；6th, level-one separation chamber；7th, lime set storage tank；8th, desalter.
Specific embodiment
The utility model is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, twin-stage MVR evaporation crystallization equipments described in the utility model, steam including level-one evaporator 1 and two level
Device 5 is sent out, 1 entrance of level-one evaporator is communicated in raw material feeding pipe, and outlet is in level-one separation chamber 6；5 entrance of secondary evaporimeter
Circulation line is formed between outlet and the second-order separation room 4, the second-order separation room 4 is communicated in desalter, a fraction by liquid phase
The liquid phase after 8 desalination of liquid phase and desalter from room 6 is respectively communicated with the arrival end of the secondary evaporimeter 5 in circulation line；One
Grade separation chamber 6 is communicated in 2 entrance of stage compressor by vapour phase, and the vapour phase after the second-order separation room 4 detaches is communicated in two-stage compression
3 entrance of machine, 3 outlet of split-compressor is in 2 entrance of stage compressor；Level-one evaporator 1 and 5 heated side of secondary evaporimeter enter
Mouth is respectively communicated with to be exported in stage compressor 2, and heating side outlet is respectively communicated in lime set storage tank 7.Level-one evaporator 1 is steamed for falling liquid film
Send out device.Secondary evaporimeter 5 is forced circulation evaporator with horizontal tubes.The type of stage compressor 2 and split-compressor 3 includes
Lobed rotor compressor and centrifugal compressor.
During operation, by material liquid input level-one evaporator 1, feed liquid heats in level-one evaporator 1, and level-one is inputted after heating
Separation chamber 6 carries out vapor-liquid separation, and gained liquid phase inputs secondary evaporimeter 5 together with the cycle feed liquid of the second-order separation room 4 and continues to heat,
The second-order separation room 4 is inputted after heating and carries out vapor-liquid separation, gained liquid phase inputs 8 desalination of desalter, and the liquid phase after desalination is defeated again
Enter secondary evaporimeter 5 and continue heating evaporation, 4 gained vapour phase of the second-order separation room is after the compression of split-compressor 3, with level-one separation chamber
6 gained vapour phases input stage compressor 2 together, after the compression of stage compressor 2, input level-one evaporator 1 respectively as heat source
It is heated with secondary evaporimeter 5 to feed liquid, lime set is condensed into after heating, input lime set storage tank 7 collects discharge.1 He of level-one evaporator
The evaporating temperature of secondary evaporimeter 5 is identical.The pressure of level-one separation chamber 6 is higher than the pressure of the second-order separation examination.Level-one evaporator 1,
Level-one separation chamber 6, the work of stage compressor 2, secondary evaporimeter 5, the second-order separation room 4, split-compressor 3 and lime set storage tank 7
Pressure is vacuum state.
Embodiment：
In material liquid, dimethyl sulfoxide (DMSO) content 32%wt, 15%wt containing sodium nitrate are carried out desalting processing, and recycle
Recycle dimethyl sulfoxide (DMSO) therein.Material liquid is inputted into level-one evaporator 1 (treating capacity 1500kg/h) by raw material pipeline, it is former
57 DEG C of feed temperature, 6 operating parameter of level-one separation chamber are：Evaporating pressure 7kPa, 98 DEG C of evaporating temperature；The behaviour of the second-order separation room 4
It is as parameter：Evaporating pressure 3kPa, 98 DEG C of evaporating temperature.In the present embodiment, what lime set storage tank 7 was collected is to need back after desalination
The dimethyl sulfoxide (DMSO) product of receipts.
Claims (4)
1. a kind of twin-stage MVR evaporation crystallization equipments, it is characterised in that：Including level-one evaporator (1) and secondary evaporimeter (5), one
Grade evaporator (1) entrance is communicated in raw material feeding pipe, and outlet is in level-one separation chamber (6)；Secondary evaporimeter (5) entrance and
Circulation line is formed between outlet and the second-order separation room (4), the second-order separation room (4) are communicated in desalter (8) by liquid phase, and one
Liquid phase after the liquid phase of grade separation chamber (6) and desalter (8) desalination is respectively communicated with the secondary evaporimeter (5) in circulation line
Arrival end；Level-one separation chamber (6) is communicated in stage compressor (2) entrance by vapour phase, and the second-order separation room (4) are connected by vapour phase
In split-compressor (3) entrance, split-compressor (3) outlet is in stage compressor (2) entrance；Level-one evaporator (1) and
Secondary evaporimeter (5) heating side entrance is respectively communicated with to be exported in stage compressor (2), and heating side outlet is respectively communicated with to be stored up in lime set
Tank (7).
2. twin-stage MVR evaporation crystallization equipments according to claim 1, it is characterised in that：Level-one evaporator (1) is steamed for falling liquid film
Send out device.
3. twin-stage MVR evaporation crystallization equipments according to claim 1, it is characterised in that：Secondary evaporimeter (5) is followed to force
Ring evaporator with horizontal tubes.
4. twin-stage MVR evaporation crystallization equipments according to claim 1, it is characterised in that：Stage compressor (2) and two level pressure
The type of contracting machine (3) includes lobed rotor compressor and centrifugal compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721614663.8U CN207575799U (en) | 2017-11-28 | 2017-11-28 | Twin-stage MVR evaporation crystallization equipments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721614663.8U CN207575799U (en) | 2017-11-28 | 2017-11-28 | Twin-stage MVR evaporation crystallization equipments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207575799U true CN207575799U (en) | 2018-07-06 |
Family
ID=62733854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721614663.8U Active CN207575799U (en) | 2017-11-28 | 2017-11-28 | Twin-stage MVR evaporation crystallization equipments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207575799U (en) |
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2017
- 2017-11-28 CN CN201721614663.8U patent/CN207575799U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 255090 Shandong Province, Zibo city Zhangdian District Industrial Park, as well as the small Ma Shang Zhen Road No. 37 Patentee after: Shandong Bozhong Vacuum Technology Co.,Ltd. Address before: 255090 Shandong Province, Zibo city Zhangdian District Industrial Park, as well as the small Ma Shang Zhen Road No. 37 Patentee before: SHANDONG BOZHONG VACUUM EQUIPMENT Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230303 Address after: No. 10, Business Room, No. G4, China Fortune Ceramic City, Beijing Road, Zibo Economic Development Zone, Shandong Province, 255000 Patentee after: Bozhong (Shandong) Industrial Equipment Co.,Ltd. Address before: 255090 No.37 Bozhong Road, Xiaotao Industrial Park, Mashang Town, Zhangdian District, Zibo City, Shandong Province Patentee before: Shandong Bozhong Vacuum Technology Co.,Ltd. |