CN206950697U - Solvent recovery unit - Google Patents
Solvent recovery unit Download PDFInfo
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- CN206950697U CN206950697U CN201720469157.8U CN201720469157U CN206950697U CN 206950697 U CN206950697 U CN 206950697U CN 201720469157 U CN201720469157 U CN 201720469157U CN 206950697 U CN206950697 U CN 206950697U
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- Prior art keywords
- cooled
- recovery unit
- high temperature
- solvent recovery
- low
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- 239000002904 solvent Substances 0.000 title claims abstract description 90
- 238000011084 recovery Methods 0.000 title claims abstract description 45
- 239000012452 mother liquor Substances 0.000 claims abstract description 57
- 238000001816 cooling Methods 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000004821 distillation Methods 0.000 claims abstract description 37
- 239000002826 coolant Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012267 brine Substances 0.000 claims description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims 1
- 238000010025 steaming Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000008063 pharmaceutical solvent Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a kind of solvent recovery unit.Solvent recovery unit includes being used for the storage tank for storing mother liquor；First condenser, first condenser includes the first low-temperature cooling media passage and the first high temperature medium channel to be cooled of heat exchange is carried out with the first low-temperature cooling media passage, and the inlet of the first low-temperature cooling media passage is connected with the liquid outlet of the storage tank；Distillation still, the inlet of the distillation still are connected with the liquid outlet of the first low-temperature cooling media passage, and the steam (vapor) outlet of the distillation still is connected with the entrance of the first high temperature medium channel to be cooled；Receiving tank, the inlet of the receiving tank are connected with the outlet of the first high temperature medium channel to be cooled.Solvent recovery unit provided by the utility model, the energy consumption needed for solvent recovery is reduced, shorten separation duration, improve production efficiency.
Description
Technical field
It the utility model is related to chemical pharmaceutical solvent recovery technical field, more particularly to a kind of solvent recovery unit.
Background technology
During chemical pharmaceutical, solvent is cooled in the form of chemical products from mother liquor to be separated out, the chemical products after precipitation
Isolated by way of separation of solid and liquid from mother liquor.
In the prior art, solvent is inevitably present the incomplete problem of crystallization, and partial solvent can not analyse in mother liquor
Go out, cause certain impurity in mother liquor be present, reusing for mother liquor can not be realized.Typically mother liquor is delivered in distillation still,
Heated by steam by solvent evaporation, realize the separation of mother liquor and solvent.Mother liquor and solvent are separated using steam-heated mode
When, the mother liquor temperature after decrease temperature crystalline is relatively low, and mother liquor is heated into boiling point needs to consume substantial amounts of steam, adds energy consumption, prolongs
Separation duration has been grown, has reduced production efficiency.
Therefore, it is necessary to solves above-mentioned technical problem.
Utility model content
The utility model provides a kind of solvent recovery unit, to solve problems of the prior art, reduces solvent and returns
Energy consumption needed for receiving, shorten separation duration, improve production efficiency.
The utility model provides a kind of solvent recovery unit, including：For storing the storage tank of mother liquor；First condenser,
First condenser includes the first low-temperature cooling media passage and carries out hot friendship with the first low-temperature cooling media passage
The the first high temperature medium channel to be cooled changed, the inlet of the first low-temperature cooling media passage and the liquid outlet of the storage tank
It is connected；Distillation still, the inlet of the distillation still is connected with the liquid outlet of the first low-temperature cooling media passage, described
The steam (vapor) outlet of distillation still is connected with the entrance of the first high temperature medium channel to be cooled；Receiving tank, the receiving tank
Inlet is connected with the outlet of the first high temperature medium channel to be cooled.
Alternatively, the solvent recovery unit also includes mother liquor pipe, the liquid outlet of the first low-temperature cooling media passage
It is connected with the inlet of the distillation still by the mother liquor pipe, choke valve is provided with the mother liquor pipe.
Alternatively, it is provided with flowmeter on the mother liquor pipe.
Alternatively, the first high temperature medium channel to be cooled includes multiple bringing-up sections for being sequentially communicated, it is multiple described plus
Hot arc is uniformly arranged on the outer side surface of the first low-temperature cooling media passage.
Alternatively, it is provided with chuck on the outside of the distillation still.
Alternatively, gap is left between the chuck and the distillation still, first entrance and are offered on the chuck
One outlet.
Alternatively, the solvent recovery unit also includes the second condenser, and second condenser is treated including the second high temperature
The second low-temperature cooling media that coolant guiding channel and medium channel to be cooled with second high temperature carry out heat exchange leads to
Road；The second high temperature medium channel to be cooled is connected to the inlet of the receiving tank and the first high temperature medium to be cooled
Between the outlet of passage, condensation cycle water is provided with the second low-temperature cooling media passage.
Alternatively, the solvent recovery unit also includes the 3rd condenser, and the 3rd condenser is treated including third high temperature
The 3rd low-temperature cooling media that coolant guiding channel and medium channel to be cooled with the third high temperature carry out heat exchange leads to
Road；The air inlet and liquid outlet of the third high temperature medium channel to be cooled are connected with the receiving tank, and the described 3rd is low
Chilled brine is provided with warm coolant guiding channel.
Alternatively, the solvent recovery unit also includes gas-liquid separator, the entrance of the gas-liquid separator and described the
The liquid outlet of three high temperature medium channel to be cooled is connected, and the liquid outlet of the gas-liquid separator is connected with the receiving tank.
Alternatively, it is connected with vacuum pipe on the gas-liquid separator.
Solvent recovery unit provided by the utility model, by the way that the vaporish solvent evaporated in distillation still is imported into the
Heated in one high temperature medium channel to be cooled to low temperature mother liquor, the temperature of low temperature mother liquor can be effectively improved, saved next
Heat needed for step heating mother liquor, reduces energy consumption, while solvent is cooled during low temperature mother liquor is heated, partial solvent
The inside into receiving tank is recovered after liquefaction, the flow needed for vaporish solvent cooling is simplified, simplifies solvent recovery dress
The structure put, advantageously reduces production cost.The second high temperature medium channel to be cooled, the second low-temperature cooling media passage set
Medium channel to be cooled with third high temperature, the 3rd low-temperature cooling media passage can effectively improve the liquefied fraction of solvent, improve
The organic efficiency of solvent.
Brief description of the drawings
Preferred embodiment in the present invention will be described in detail by accompanying drawing below, it will help understand the purpose of the present invention and excellent
Point, wherein:
Fig. 1 is the structural representation for the solvent recovery unit that the utility model preferred embodiment provides.
Embodiment
Mention in this manual or may mention up, down, left, right, before and after, front, the back side, top, bottom etc.
Orientation term is defined relative to the construction shown in each accompanying drawing, and word " interior " and " outer " refer respectively to direction or remote
From particular elements geometric center direction they be relative concept, it is therefore possible to can according to its residing diverse location, difference
Use state and correspondingly changed.So also these or other orientation terms should not be construed to restricted use
Language.
Fig. 1 is the structural representation for the solvent recovery unit that the utility model preferred embodiment provides, as shown in figure 1, this
Utility model provides a kind of solvent recovery unit, can be used for being distilled to recover solvent from mother liquor, including：Storage tank 1, first is cold
Condenser 2, distillation still 4 and receiving tank 5.
Fig. 1 is refer to, mother liquor is stored in the storage tank 1, the separation of solid and liquid after low temperature crystallization separates out chemical products
Low temperature mother liquor enters in storage tank 1, and undecomposed solvent is contained in the mother liquor in storage tank 1, and the boiling point of solvent is less than the boiling point of mother liquor.
First condenser 2 is used for low temperature mother liquor and carries out heat exchange with solvent vapo(u)r, and the first condenser 2 leads to including the first low-temperature cooling media
The high temperature of road 22 and first medium channel 23 to be cooled, the inlet of the first low-temperature cooling media passage 22 go out liquid with storage tank 1
Mouthful it is connected, it is to be heated that the mother liquor in storage tank 1 enters in the first low-temperature cooling media passage 22 etc..First high temperature medium to be cooled
Passage 23 is used to heat to the first low-temperature cooling media passage 22.Alternatively, the first high temperature medium channel 23 to be cooled can paste
Close on the outer side surface of the first low-temperature cooling media passage 22 or the first high temperature medium channel 23 to be cooled can also be worn
Enter in the first low-temperature cooling media passage 22.The solvent of the shape distilled out in distillation still 4 is entered by the steam (vapor) outlet of distillation still 4
In first high temperature medium channel 23 to be cooled, the first high temperature medium channel 23 to be cooled enters with the first low-temperature cooling media passage 22
Row heat exchange, low temperature mother liquor are heated, and the solvent of some vapor shape is cooled into liquid.Mother liquor after heating enters distillation still 4
In and in distillation still 4 by reheating, now need less heat to distill out solvent from mother liquor, reduce energy
The loss of amount, the time of mother liquor heating is shortened, improves production efficiency.Solvent after heat exchange enters in receiving tank 5, simplifies
The cooled step of the solvent of steam state, improves the utilization ratio of heat energy, simplifies the structure of solvent recovery unit, be advantageous to save
Cost-saving.
The solvent recovery unit that the utility model embodiment provides, by vaporish molten by what is evaporated in distillation still 4
Agent is imported in the first high temperature medium channel 23 to be cooled and heated to low temperature mother liquor, can effectively improve the temperature of low temperature mother liquor,
The heat in next step needed for heating mother liquor is saved, reduces energy consumption, while solvent is cold during low temperature mother liquor is heated
But, the flow into the inside of receiving tank 5, simplified needed for vaporish solvent cooling is recovered after partial solvent liquefaction, is simplified
The structure of solvent recovery unit, advantageously reduces production cost.
Alternatively, the solvent recovery unit also includes mother liquor pipe 21, and the first low-temperature cooling media passage 22 goes out
Liquid mouth is connected with the inlet of the distillation still 4 by the mother liquor pipe 21, and choke valve is provided with the mother liquor pipe 21.Section
Stream valve can efficiently control the speed that mother liquor flows from the first low-temperature cooling media passage 22 into distillation still 4, be advantageous to mother
Liquid is sufficiently heated in the first low-temperature cooling media passage 22, is advantageous to improve mother liquor temperature, can further be reduced distillation
The energy consumption needed for mother liquor is heated in kettle 4.
Alternatively, flowmeter is also provided with the mother liquor pipe 21, flowmeter can measure the flow of mother liquor, favorably
In the flow velocity of accurately control mother liquor.
Further, first high temperature medium channel 23 to be cooled includes multiple multiple bringing-up sections being sequentially communicated, more
The individual bringing-up section is uniformly arranged on the outer side surface of the first low-temperature cooling media passage 22, can improve heat exchange effect
Rate, be advantageous to treat the uniform heat exchange of the first low-temperature cooling media passage 22, the first low-temperature cooling media passage 22 with the first high temperature
The wall that coolant guiding channel 23 fits can be arranged to the preferable iron wall of heat conductivility or copper wall etc., to improve heat exchange effect
Rate.
It is preferred that the outside of the distillation still 4 is provided with chuck 41.The setting of chuck 41 can be by distillation still 4 and the external world
Environment is isolated, and prevents distillation still 4 when heating mother liquor, and heat is dissipated by the outer wall of distillation still 4.Alternatively, the chuck
41 first end sealed set, for the second end palette of the chuck 41 on the outer wall of the distillation still 4, chuck 41 can be with
Concentration heating is carried out to the wall being in contact in distillation still 4 with mother liquor, improves the utilization ratio of heat energy.
Alternatively, gap is left between the chuck 41 and the distillation still 4, is offered on the chuck 41 for being passed through
The first outlet 43 of condensed water after the first entrance 42 of steam and release heat exchange, high-temperature steam enter chuck from first entrance 42
Between 41 and distillation still 4, the mother liquor inside distillation still 4 is heated, solvent is distilled out, the condensed water after heat release is from first
Outlet 43 is left, and ensures that subsequent high temperature steam continuously enters in chuck 41 and distillation still 4 from first entrance 42.
As an optional embodiment, the solvent recovery unit can also include the second condenser, 6 second condensers
6 carry out heat exchange including the second high temperature medium channel 62 to be cooled and medium channel 62 to be cooled with second high temperature
Second low-temperature cooling media passage 61.Wherein, the second low-temperature cooling media passage 61 be fitted in second high temperature treat it is cold
But the outer side surface of medium channel 62 or it is located in the inside of the second high temperature medium channel 62 to be cooled.Described second
High temperature medium channel 62 to be cooled is connected to the inlet and first high temperature medium channel 23 to be cooled of the receiving tank 5
Between outlet, condensation cycle water is provided with the second low-temperature cooling media passage 61.First high temperature medium channel to be cooled
There is the incomplete problem that liquefies in the solvent of 23 outlets, solvent enters in the second high temperature medium channel 62 to be cooled, passes through second
The cooling effect of the interior low-temperature circulating water of low-temperature cooling media passage 61, solvent can further be liquefied, it is high by second
Temperature medium channel 62 to be cooled further cool down after solvent into the inside of receiving tank 5.
On the basis of above-described embodiment, the solvent recovery unit can also include the 3rd condenser 7, the 3rd condenser
7 include the 3rd of third high temperature medium channel 72 to be cooled and the progress heat exchange of medium channel to be cooled with third high temperature 72
Low-temperature cooling media passage 71, the 3rd low-temperature cooling media passage 71 are fitted in third high temperature medium channel to be cooled
72 outer side surface or the inside for being located in third high temperature medium channel 72 to be cooled.The third high temperature is to be cooled
The air inlet and liquid outlet of medium channel 72 are connected with the receiving tank 5, in the 3rd low-temperature cooling media passage 71
It is provided with chilled brine.There is no liquefied part to enter third high temperature medium to be cooled from air inlet in solvent in receiving tank 5
It is in passage 72, and by the refrigeration of the chilled brine inside the 3rd low-temperature cooling media passage 71, gaseous solvent is cold
But into liquid, and enter from the liquid outlet of third high temperature medium channel 72 to be cooled the inside of receiving tank 5, ensure that receiving tank 5
The complete liquefaction of interior solvent.
Alternatively, the solvent recovery unit also includes gas-liquid separator 8, the entrance of the gas-liquid separator 8 with it is described
The liquid outlet of third high temperature medium channel 72 to be cooled is connected, the liquid outlet of the gas-liquid separator 8 and the phase of receiving tank 5
Connection.Solvent after being cooled inside third high temperature medium channel 72 to be cooled enters the inside of gas-liquid separator 8, by gas
After the separation of liquid/gas separator 8, the solvent of liquid enters the inside of receiving tank 5, gaseous solvent again return to third high temperature treat it is cold
But the inside of medium channel 72, and so on untill solvent completely liquefaction.
It is preferred that being connected with vacuum pipe 9 on the gas-liquid separator 8, vacuum pipe 9 is formed in gas-liquid separator 8
Negative pressure, the vaporish solvent in solvent recovery unit can be made to flow to third high temperature medium to be cooled in the presence of negative pressure and led to
In road 72 and gas-liquid separator 8, reciprocal freeze cycle is realized, ensures that the solvent inside solvent recovery unit liquefies completely, liquid
Organic solvent after change goes to the downstream that solvent removes recovery.Vacuum pipe 9 continuously works, and locates in solvent recovery unit
In vacuum environment.Wherein, the mother liquor in the first low-temperature cooling media passage 22 can also be low from first in the presence of vacuumizing
Warm coolant guiding channel 22 flows to the inside of distillation still 4, without extra driving force, further reduces energy consumption.It is and molten
Agent retracting device advantageously reduces the boiling point of solvent generally in vacuum environment, so as to the usage amount of further steam saving.
Solvent recovery unit provided by the utility model, imported by the vaporish solvent that will be evaporated in distillation still 4
Heated in first high temperature medium channel 23 to be cooled to low temperature mother liquor, the temperature of low temperature mother liquor can be effectively improved, saved
Heat needed for heating mother liquor in next step, energy consumption is reduced, while solvent is cooled during low temperature mother liquor is heated, part
It is recovered after solvent liquefaction and into the inside of receiving tank 5, simplifies the required flow of vaporish solvent cooling, is simplified solvent and return
The structure of receiving apparatus, advantageously reduces production cost.The second high temperature medium channel 62 to be cooled of setting, the second sub-cooled are situated between
Matter passage 61 and third high temperature medium channel 72 to be cooled, the 3rd low-temperature cooling media passage 71 can effectively improve solvent
Liquefied fraction, improve the organic efficiency of solvent.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The scope of scheme.
Claims (10)
- A kind of 1. solvent recovery unit, it is characterised in that including：For storing the storage tank of mother liquor；First condenser, first condenser include the first low-temperature cooling media passage and with first sub-cooled Medium channel carry out heat exchange the first high temperature medium channel to be cooled, the inlet of the first low-temperature cooling media passage with The liquid outlet of the storage tank is connected；Distillation still, the inlet of the distillation still are connected with the liquid outlet of the first low-temperature cooling media passage, the steaming The steam (vapor) outlet for evaporating kettle is connected with the entrance of the first high temperature medium channel to be cooled；Receiving tank, the inlet of the receiving tank are connected with the outlet of the first high temperature medium channel to be cooled.
- 2. solvent recovery unit according to claim 1, it is characterised in that the solvent recovery unit also includes mother liquor Pipe, the liquid outlet of the first low-temperature cooling media passage are connected with the inlet of the distillation still by the mother liquor pipe, Choke valve is provided with the mother liquor pipe.
- 3. solvent recovery unit according to claim 2, it is characterised in that be provided with flowmeter on the mother liquor pipe.
- 4. solvent recovery unit according to claim 1, it is characterised in that the first high temperature medium channel bag to be cooled The multiple bringing-up sections being sequentially communicated are included, multiple bringing-up sections are equal on the outer side surface of the first low-temperature cooling media passage Even arrangement.
- 5. solvent recovery unit according to claim 1, it is characterised in that be provided with chuck on the outside of the distillation still.
- 6. solvent recovery unit according to claim 5, it is characterised in that left between the chuck and the distillation still Gap, first entrance and first outlet are offered on the chuck.
- 7. according to the solvent recovery unit described in claim 1-6 any one, it is characterised in that the solvent recovery unit is also Including the second condenser, second condenser includes the second high temperature medium channel to be cooled and treated with second high temperature Coolant guiding channel carries out the second low-temperature cooling media passage of heat exchange；The second high temperature medium channel to be cooled is connected to Between the outlet of the inlet of the receiving tank and the first high temperature medium channel to be cooled, second low-temperature cooling media Condensation cycle water is provided with passage.
- 8. according to the solvent recovery unit described in claim 1-6 any one, it is characterised in that the solvent recovery unit is also Including the 3rd condenser, the 3rd condenser includes third high temperature medium channel to be cooled and treated with the third high temperature Coolant guiding channel carries out the 3rd low-temperature cooling media passage of heat exchange；The air inlet of the third high temperature medium channel to be cooled Mouth and liquid outlet are connected with the receiving tank, and chilled brine is provided with the 3rd low-temperature cooling media passage.
- 9. solvent recovery unit according to claim 8, it is characterised in that the solvent recovery unit is also including gas-liquid point From device, the entrance of the gas-liquid separator is connected with the liquid outlet of third high temperature medium channel to be cooled, the gas-liquid The liquid outlet of separator is connected with the receiving tank.
- 10. solvent recovery unit according to claim 9, it is characterised in that be connected with vacuum on the gas-liquid separator Pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720469157.8U CN206950697U (en) | 2017-04-28 | 2017-04-28 | Solvent recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720469157.8U CN206950697U (en) | 2017-04-28 | 2017-04-28 | Solvent recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206950697U true CN206950697U (en) | 2018-02-02 |
Family
ID=61374215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720469157.8U Active CN206950697U (en) | 2017-04-28 | 2017-04-28 | Solvent recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206950697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112386928A (en) * | 2020-12-07 | 2021-02-23 | 无锡朗盼环境科技有限公司 | Miniature electric heating water-cooling low-temperature evaporator |
-
2017
- 2017-04-28 CN CN201720469157.8U patent/CN206950697U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112386928A (en) * | 2020-12-07 | 2021-02-23 | 无锡朗盼环境科技有限公司 | Miniature electric heating water-cooling low-temperature evaporator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181211 Address after: 317024 Flood Bridge, Linhai City, Zhejiang Province Co-patentee after: Zhejiang Huahai Pharmaceutical Co., Ltd. Patentee after: Licheng Zhejiang Huahai Pharmaceutical Co. Ltd. Co-patentee after: Southern China Chemical Co., Ltd. Address before: 317024 Flood Bridge, Linhai City, Taizhou City, Zhejiang Province Co-patentee before: Zhejiang Huahai Pharmaceutical Co., Ltd. Patentee before: Licheng Zhejiang Huahai Pharmaceutical Co. Ltd. |
|
| TR01 | Transfer of patent right |