CN212141540U - Self-circulation secondary heat exchange gradient crystallization device - Google Patents
Self-circulation secondary heat exchange gradient crystallization device Download PDFInfo
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- CN212141540U CN212141540U CN202020512532.4U CN202020512532U CN212141540U CN 212141540 U CN212141540 U CN 212141540U CN 202020512532 U CN202020512532 U CN 202020512532U CN 212141540 U CN212141540 U CN 212141540U
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- crystallization kettle
- crystallization
- cooling water
- pipe
- kettle
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- 238000002425 crystallisation Methods 0.000 title claims abstract description 108
- 230000008025 crystallization Effects 0.000 title claims abstract description 108
- 239000000498 cooling water Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000002826 coolant Substances 0.000 claims abstract description 5
- 238000007710 freezing Methods 0.000 claims abstract description 5
- 230000008014 freezing Effects 0.000 claims abstract description 5
- 238000004321 preservation Methods 0.000 claims abstract description 3
- 150000003839 salts Chemical class 0.000 claims abstract 2
- 238000003756 stirring Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 abstract description 13
- 230000008676 import Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 11
- 239000013078 crystal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012267 brine Substances 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Abstract
The utility model provides a self-circulation secondary heat transfer gradient crystallization device, including crystallization kettle and agitating unit, agitating unit installs in crystallization kettle top, the winding of crystallization kettle outside below has the semicircle pipe, the diameter plane laminating crystallization kettle side of semicircle pipe, semicircle outside cover has the heat preservation, semicircle socle bottom both sides are provided with recirculated cooling water import and recirculated cooling water export downwards, recirculated cooling water import is through water piping connection has the coolant circulating pump, the coolant circulating pump is through water piping connection has the liquid compressor, the liquid compressor is through water piping connection to recirculated cooling water export, the freezing salt water has all circulated in semicircle pipe and the water pipe, one side installs temperature controller in the middle of the crystallization kettle, temperature controller is connected with the thermoscope, the thermoscope passes the crystallization kettle lateral wall and extends to the crystallization kettle inner chamber; the device solves the problems that the structure of the existing equipment is complicated, the process steps are complicated during cooling, the use is inconvenient, the temperature conduction surface in the crystallization kettle is small, and the crystallization efficiency is low.
Description
Technical Field
The utility model belongs to the technical field of solution crystallization equipment, concretely relates to self-loopa secondary heat transfer gradient crystallization device.
Background
Solution crystallization is the most common operation in fine chemical engineering, when the concentration of solute in most solutions exceeds the saturation solubility value at a set temperature, crystals are spontaneously generated, and when a part of solutions reach the crystallization temperature, crystal seeds are required to be added to generate crystallization, and the requirement of crystallization operation is to prepare pure crystals with certain particle size distribution; in the existing industrial production, two main ways of crystallization are evaporation crystallization and cooling crystallization, and the purpose of crystallization is to increase the concentration of a solution and relatively increase the supersaturation degree at a specific temperature.
Patent application No. CN201720983136.8, the contents of which are: the utility model discloses a self-loopa secondary heat transfer gradient crystallization device, including crystallization kettle, second grade secondary refrigerant circulating pump, expansion drum and electric heater, crystallization kettle's top is provided with the motor, the pivot of motor runs through crystallization kettle's top and extends to crystallization kettle's inner chamber through the speed reducer, the pivot of motor is located the one end fixedly connected with agitator of crystallization kettle inner chamber, the right side fixedly connected with thermometer of crystallization kettle inner chamber, the top of thermometer extends to crystallization kettle's outside. The utility model discloses can adjust the temperature of secondary refrigerant according to the crystallization curve of solution, make the solution cool down gently, reach the effect of crystal granularity homogeneous, freezing salt solution does not have alternately with the secondary refrigerant, can not pollute the secondary refrigerant system, and secondary refrigerant volume circulation volume is little, and the one-level secondary refrigerant use amount is adjustable, the energy consumption of greatly reduced crystallization process, and whole device integration degree is high, and the controllability is high, all is suitable for to any crystallization material.
Although the second grade heat transfer crystallization effect can be realized to above-mentioned patent, still need pass through electric heater and expansion tank processing refrigerant, realize the cooling of second time, complex operation, and the refrigerant after the use need be retrieved alone, environmental pollution easily, and is not environmental protection.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is loaded down with trivial details to solve the existing equipment structure, and it is loaded down with trivial details to lead to the process steps during the cooling, uses inconveniently, and temperature conduction face is little in the crystallization kettle, and the problem that crystallization efficiency is low provides a self-loopa secondary heat transfer gradient crystallization device for this.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a self-loopa secondary heat transfer gradient crystallization device, includes crystallization kettle and agitating unit, agitating unit installs in the crystallization kettle top, the winding of crystallization kettle outside below has the semicircle pipe, the diameter plane laminating crystallization kettle side of semicircle pipe, semicircle outside of tubes cover has the heat preservation, semicircle socle portion both sides are provided with recirculated cooling water import and recirculated cooling water export downwards, recirculated cooling water import leads to pipe connects has the refrigerant circulating pump, the refrigerant circulating pump has liquid compressor through the water piping connection, liquid compressor leads to pipe connection to the recirculated cooling water export, and the homocycle has freezing salt solution in semicircle pipe and the water pipe, temperature controller is installed to one side in the middle of the crystallization kettle, temperature controller is connected with the thermoscope, the thermoscope passes the crystallization kettle lateral wall and extends to the crystallization kettle inner chamber.
Further, the lower side of the crystallization kettle is of a round table-shaped structure, the large end of the lower portion of the crystallization kettle faces upwards, the small end of the lower portion of the crystallization kettle faces downwards, and a crystallization discharge hole is formed in the small end of the crystallization kettle in the downward direction.
Furthermore, a plurality of step rings are arranged on the side face of the circular truncated cone below the inner cavity of the crystallization kettle, and inclined planes of the step rings face to the rotating center of the stirring device.
Further, stir the board device and include motor and rotation axis, the motor is installed in the crystallization kettle top, the rotation end at the motor is connected to the rotation axis, the rotation axis downwardly extends to the crystallization kettle inner chamber, a plurality of (mixing) shafts are installed to the downward sloping on the rotation axis.
Furthermore, a water quantity control valve is also arranged between the secondary refrigerant circulating pump and the circulating cooling water inlet.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the device is provided with the liquid compressor between the secondary refrigerant circulating pump and the circulating cooling water outlet for secondary cooling liquid, and the cooling pipe in the liquid compressor usually uses a copper pipe, so that the cooling speed is high, and the cooling speed is high when the frozen brine is circulated for secondary cooling, and the device can be better matched with a crystallization kettle for crystallization; set up crystallization kettle below into round platform shape, and set up the step circle on the round platform inclined plane, increase crystallization contact surface improves the crystallization efficiency of solution, avoids heat transfer untimely in the crystallization cooling, and the heat transfer effect is poor, leads to solution crystallization inefficiency, the quality low.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of the lower half part of a crystallization kettle in the embodiment of the present invention;
the embodiment of the utility model provides a contain following main reference numeral:
the device comprises a crystallization kettle-1, a step ring-101, a crystallization discharge port-102, a stirring device-2, a motor-201, a rotating shaft-202, a stirring shaft-203, a semicircular pipe-3, a circulating cooling water inlet-301, a circulating cooling water outlet-302, a heat insulation layer-4, a water quantity control valve-5, a secondary refrigerant circulating pump-6, a liquid compressor-7, a water pipe-8, a temperature controller-9 and a temperature detector-901.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, a self-circulation secondary heat exchange gradient crystallization device comprises a crystallization kettle 1 and a stirring device 2, wherein the stirring device 2 is installed above the crystallization kettle 1, a semicircular pipe 3 is wound below the outer side of the crystallization kettle 1, the diameter plane of the semicircular pipe 3 is attached to the side surface of the crystallization kettle 1, a heat insulation layer 4 is sleeved on the outer side of the semicircular pipe 3, a circulating cooling water inlet 301 and a circulating cooling water outlet 302 are arranged at two sides of the bottom of the semicircular pipe 3 downwards, the circulating cooling water inlet 301 is connected with a coolant circulating pump 6 through a water pipe 8, the coolant circulating pump 6 is connected with a liquid compressor 7 through the water pipe 8, the liquid compressor 7 is connected to the circulating cooling water outlet 302 through the water pipe 8, freezing brine circulates in the semicircular pipe 3 and the water pipe 8, a temperature controller 9 is installed at one side of the middle of the crystallization kettle 1, the temperature controller 9 is connected with a temperature, the temperature detector 901 penetrates through the side wall of the crystallization kettle 1 and extends to the inner cavity of the crystallization kettle 1.
The lower side of the crystallization kettle 1 is of a round table-shaped structure, the large end of the lower part of the crystallization kettle 1 faces upwards, the small end faces downwards, and a crystallization discharge hole 102 is installed at the small end of the crystallization kettle 1 downwards.
As shown in fig. 2, a plurality of step rings 101 are installed on the side surface of the circular truncated cone below the inner cavity of the crystallization kettle 1, and the inclined surfaces of the step rings 101 face the rotation center of the stirring device 2.
According to the device, the liquid compressor 7 is arranged between the secondary refrigerant circulating pump 6 and the circulating cooling water outlet 302 for cooling the secondary cooling liquid, and a copper pipe is usually used as a refrigerating pipe in the liquid compressor 7, so that the refrigerating speed is high, and the cooling speed is high when the frozen brine is circulated for secondary cooling, so that the device can be better matched with the crystallization kettle 1 for crystallization; set up crystallization kettle 1 below into round platform shape, and set up step ring 101 on the round platform inclined plane, increase crystallization contact surface improves the crystallization efficiency of solution, avoids heat transfer untimely in the crystallization cooling, and the heat transfer effect is poor, leads to solution crystallization inefficiency, the quality low.
The stirring plate device comprises a motor 201 and a rotating shaft 202, wherein the motor 201 is installed above the crystallization kettle 1, the rotating shaft 202 is connected to the rotating end of the motor 201, the rotating shaft 202 extends downwards to the inner cavity of the crystallization kettle 1, and a plurality of stirring shafts 203 are installed on the rotating shaft 202 in a downward tilting mode.
The crystallization speed and the uniformity of crystallization are accelerated by the stirring device 2.
And a water quantity control valve 5 is also arranged between the refrigerating medium circulating pump 6 and the circulating cooling water inlet 301.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a self-loopa secondary heat transfer gradient crystallization device, includes crystallization kettle (1) and agitating unit (2), agitating unit (2) are installed in crystallization kettle (1) top, its characterized in that: the crystallization kettle is characterized in that a semicircular pipe (3) is wound below the outer side of the crystallization kettle (1), the diameter plane of the semicircular pipe (3) is attached to the side surface of the crystallization kettle (1), a heat preservation layer (4) is sleeved on the outer side of the semicircular pipe (3), a circulating cooling water inlet (301) and a circulating cooling water outlet (302) are arranged on two sides of the bottom of the semicircular pipe (3) downwards, the circulating cooling water inlet (301) is connected with a cold carrier circulating pump (6) through a water pipe (8), the cold carrier circulating pump (6) is connected with a liquid compressor (7) through a water pipe (8), the liquid compressor (7) is connected to the circulating cooling water outlet (302) through a water pipe (8), freezing salt water circulates in the semicircular pipe (3) and the water pipe (8), a temperature controller (9) is installed on one side in the middle of the crystallization kettle (1), and the temperature controller (9) is connected, the temperature detector (901) penetrates through the side wall of the crystallization kettle (1) and extends to the inner cavity of the crystallization kettle (1).
2. The gradient crystallization device according to claim 1, characterized in that the lower side of the crystallization kettle (1) is a truncated cone-shaped structure, the large end of the lower part of the crystallization kettle (1) faces upwards, the small end of the lower part of the crystallization kettle (1) faces downwards, and a crystallization discharge hole (102) is arranged at the lower part of the crystallization kettle (1).
3. The gradient crystallization device according to claim 2, characterized in that a plurality of step rings (101) are installed on the side surface of the circular truncated cone below the inner cavity of the crystallization kettle (1), and the inclined surfaces of the step rings (101) face the rotation center of the stirring device (2).
4. The gradient crystallization device according to claim 3, wherein the stirring device comprises a motor (201) and a rotating shaft (202), the motor (201) is installed above the crystallization kettle (1), the rotating shaft (202) is connected to the rotating end of the motor (201), the rotating shaft (202) extends downwards to the inner cavity of the crystallization kettle (1), and a plurality of stirring shafts (203) are installed on the rotating shaft (202) in a downward inclination mode.
5. The gradient crystallization device according to claim 4, wherein a water quantity control valve (5) is further installed between the coolant circulating pump (6) and the circulating cooling water inlet (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020512532.4U CN212141540U (en) | 2020-04-09 | 2020-04-09 | Self-circulation secondary heat exchange gradient crystallization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020512532.4U CN212141540U (en) | 2020-04-09 | 2020-04-09 | Self-circulation secondary heat exchange gradient crystallization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212141540U true CN212141540U (en) | 2020-12-15 |
Family
ID=73725418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020512532.4U Expired - Fee Related CN212141540U (en) | 2020-04-09 | 2020-04-09 | Self-circulation secondary heat exchange gradient crystallization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212141540U (en) |
-
2020
- 2020-04-09 CN CN202020512532.4U patent/CN212141540U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |