CN206463529U - A kind of energy-conservation evaporation crystallization equipment of sodium chloride solution - Google Patents
A kind of energy-conservation evaporation crystallization equipment of sodium chloride solution Download PDFInfo
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- CN206463529U CN206463529U CN201621081649.1U CN201621081649U CN206463529U CN 206463529 U CN206463529 U CN 206463529U CN 201621081649 U CN201621081649 U CN 201621081649U CN 206463529 U CN206463529 U CN 206463529U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
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Abstract
The utility model discloses a kind of energy-conservation evaporation crystallization equipment of sodium chloride solution, including preheating device, vaporising device, crystal separator, control device.The energy-conservation evaporation crystallization equipment of sodium chloride solution described in the utility model instead of traditional steam-heated evaporation and crystallization mode, the indirect steam isolated using compressor compresses OSLO separators, heating steam is used as using the indirect steam after compression, and by setting loop to realize the circulation of equipment itself, accomplish without raw steam heating, without condensing plant, only need a small amount of electric energy evaporative crystallization effect good with regard to that can reach, so that to reduce cost in sodium chloride solution processing procedure, energy-conserving and environment-protective open a new way, with clean energy-saving, intelligence is automatic, the advantages such as efficient work.
Description
Technical field
The utility model is related to the condensing crystallizing technical field of solution, in particular it relates to a kind of energy-conservation of sodium chloride solution
Evaporation crystallization equipment.
Background technology
Sodium chloride is widely used industry and living resources in human lives, and the industrial production of high pure sodium chloride is generally led to
Pervaporation concentration technology is realized, but traditional steaming method technique is realized using steam energy and is concentrated by evaporation, wherein, and steamed with multiple-effect
The form evaporator of hair is the most universal.But because in recent years, steam price rapidly goes up, cause the energy consumption cost of traditional evaporated form
Heavy burden as vast enterprise.Furthermore, non-renewable fossil energy (such as coal, oil are used the boiler of steam source more
Deng), this also causes the severe contamination of environment, does not meet the development general trend of events of clean energy resource, green living.
Utility model content
The purpose of this utility model is the energy-conservation evaporation crystallization equipment for providing a kind of sodium chloride solution, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of energy-conservation evaporation crystallization equipment of sodium chloride solution, including preheating device, vaporising device, crystal separator,
Control device；The preheating device includes material buffer tank, preheater, and material buffer tank is connected with preheater by one section of conveying pipeline
Connect, feed pump is installed on the conveying pipeline；The vaporising device include main heat exchanger, OSLO separators, vapour compression machine with
And condensate water pot；The feed end of the main heat exchanger connects the discharge end of preheater；OSLO separators are connected simultaneously with main heat exchanger
Formed on closed-loop path, the closed-loop path and be provided with circulating pump, the concentrate after being separated through OSLO separators passes through circulating pump
Entered back into after being exchanged heat into main heat exchanger and evaporate and further concentrate in OSLO separators, concentrate is in OSLO separators
Bottom gravity settling separation, solid realizes that solid sedimentation, crystal grain are brought up under the percussion that gravity and concentrate flow, on
Clear liquid then continues cycling through evaporation by closed-loop path between main heat exchanger and OSLO separators；The steam of the OSLO separators
Outlet connects the air inlet of vapour compression machine by one section of appendix, and the gas outlet of vapour compression machine is connected with main heat exchanger, main
The condensation-water drain of heat exchanger connects condensate water pot by water-supply-pipe；The crystal separator includes thickener, centrifuge and filled
Put, thickener and centrifuge apparatus are connected to the discharge end of OSLO separators in turn by a discharging pump；The control device bag
Control circuit, sensor are included, the data such as liquid level, crystallization situation are monitored by sensor, automatically controlled by control circuit
Each pump, centrifuge apparatus operation, realize full-range automation.
It is preferred that, the sensor includes separation liquid level sensor, temperature sensor in OSLO separators, described
Control circuit is connected with separating liquid level sensor, temperature sensor, feed pump, discharging pump respectively.
It is preferred that, the sensor includes the stiff liquid level sensor in the thickener, the control circuit respectively with
Stiff liquid level sensor, centrifuge apparatus connection.
It is preferred that, the condensate water pot is provided with condensation-water drain, the condensation-water drain and distilled water pump of the condensate water pot
Water inlet end connected by water-supply-pipe, the water side of the distilled water pump is connected on preheater, the condensed water of the preheater
Outlet connection outlet pipe.Condensed water flows through preheater by water-supply-pipe, and with inversely flowing through the material-heat-exchanging of preheater, to reclaim
Heat, the normal temperature condensed water after preheater hot is exchanged is discharged by outlet pipe.
It is preferred that, second servo loop is provided between the centrifuge apparatus and OSLO separators, second servo loop is provided with mother liquor
Pump, the mother liquor obtained after centrifuge is pumped into OSLO separators by mother liquor and circulated.
Compared with prior art, the beneficial effects of the utility model are：The section of sodium chloride solution described in the utility model
Energy evaporation crystallization equipment instead of traditional steam-heated evaporation and crystallization mode, be separated using compressor compresses OSLO separators
The indirect steam gone out, using the indirect steam after compression as heating steam, and by setting loop to realize equipment itself
Circulation, has accomplished without raw steam heating, without condensing plant, has only needed the evaporative crystallization effect that a small amount of electric energy is good with regard to that can reach
Really, so as to open a new way to reduce cost, energy-conserving and environment-protective in sodium chloride solution processing procedure, with clean energy-saving,
The advantages such as intelligence is automatic, efficient work.
For the purpose of utility model is better achieved, here, a kind of energy-conservation evaporation knot of sodium chloride solution is also provided
The control method of brilliant equipment, comprises the following steps：
S1. vaporising device OSLO separator liquid levels are monitored by separation liquid level sensor, in the low liquid of OSLO separators
Control circuit automatically controls unlatching feed pump during position, closes feed pump when OSLO separator liquid levels are high, it is ensured that inspissator liquid level
Maintain stable region；
S2. the solution concentration in temperature sensor indirect monitoring vaporising device OSLO separators, when temperature reaches setting value
When, that is, solution concentration arrived setting value, automatically controlling discharging pump by control circuit opens, and the sedimentation in OSLO separators is brilliant
Grain is pumped into thickener through discharging pump, when solution temperature is reduced to a certain extent in OSLO separators, and control circuit is automatically controlled
Discharging pump is closed, by the keying of discharging pump, the sedimentation crystal grain in OSLO separators is timely entered thickener and is continued to crystallize；
S3. thickener liquid level is monitored by stiff liquid level sensor, thickener solidliquid mixture reaches the liquid of setting
Behind position, by default mixing speed and rearing crystal time, after the further crystal growth of sodium chloride crystal to desired granularity, control
Circuit automatically controls unlatching centrifuge apparatus, is discharged into centrifuge apparatus fixed quantity, isolates sodium chloride crystal.
It is preferred that, the level parameter of the control circuit, temperature of charge parameter can be adjusted, so as to meet different dense
Degree, the crystallization of the sodium chloride solution of quality need.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the block diagram of the control device of the utility model embodiment；
Wherein：1. material buffer tank, 2. feed pumps, 3. preheaters, 4. main heat exchangers, 5.OSLO separators, 6. vapour pressures
Contracting machine, 7. condensate water pots, 8 distilled water pumps, 9. circulating pumps, 10. discharging pumps, 11. thickeners, 12. centrifuge apparatus, 13. mother liquors
Pump.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Shown in reference picture 1, Fig. 2, a kind of energy-conservation evaporation crystallization equipment of sodium chloride solution, the preheating device includes material
Surge tank 1, preheater 3, material buffer tank 1 are connected with preheater 3 by one section of conveying pipeline, and charging is provided with the conveying pipeline
Pump 2；The vaporising device includes main heat exchanger 4, OSLO separators 5, vapour compression machine 6 and condensate water pot 7；The main heat exchange
The feed end of device 4 connects the discharge end of preheater 3；OSLO separators 5 are connected with main heat exchanger 4 and form closed-loop path, described
Circulating pump 9 is provided with closed-loop path, the concentrate after being separated through OSLO separators 5 is entered in main heat exchanger 4 by circulating pump 9
Entered back into after heat exchange and concentrate is isolated in OSLO separators 5, concentrate supernatant is by closed-loop path in main heat exchanger 4
Evaporation is continued cycling through between OSLO separators 5, Sinking solids are crystallized under gravity and fluid impingement force effect and brought up；It is described
The steam (vapor) outlet of OSLO separators 5 connects the air inlet of vapour compression machine 6, the outlet of vapour compression machine 6 by one section of appendix
Mouth is connected with main heat exchanger 4, and the condensation-water drain of main heat exchanger 4 passes through water-supply-pipe and connects condensate water pot 7；The crystal separation dress
Put including thickener 11, centrifuge apparatus 12, thickener 11 and centrifuge apparatus 12 are connected in turn by a discharging pump 10
The discharge end of OSLO separators 5.The control device includes control circuit, sensor, by sensor to liquid level, crystallization situation
It is monitored etc. data, automatically controlling each pump, centrifuge apparatus by control circuit runs, and realizes full-range automation.
The condensate water pot 7 is provided with condensation-water drain, and the water inlet end of a distilled water pump 8 is connected to condensed water by water-supply-pipe
The condensation-water drain of tank 7, the water side of distilled water pump 8 is connected on preheater 3.Due to the water from condensate water pot 7 out also
There is certain temperature, if being expelled directly out that the waste of thermal source can be caused, the water in condensate water pot 7 is incorporated into preheater 3, can be with
As the thermal source of preheater 3, so as to reach the purpose for making full use of heat.
The centrifuge apparatus 12 between OSLO separators 5 be provided with loop, loop be provided with mother liquor pump 13, centrifuge
The mother liquor obtained afterwards is sent in OSLO separators 5 by mother liquor pump 13 and circulated.Mother liquor after separation is saturated nacl aqueous solution,
Second servo loop is designed for this, mother liquor is entered in OSLO separators by second servo loop, then in OSLO separators and main heat exchange
Concentration is circulated between device, reaches that crystal is separated again after predetermined concentration, is moved in circles, is finally realized returning completely for sodium chloride
Receive.
The condensate water pot 7 is provided with condensation-water drain, the condensation-water drain of the condensate water pot 7 and entering for distilled water pump 8
Water end (W.E.) is connected by water-supply-pipe, and the water side of the distilled water pump 8 is connected on preheater 3, and the condensed water of the preheater 3 goes out
Mouth connection outlet pipe.Condensed water flows through preheater 3 by water-supply-pipe, and with inversely flowing through the material-heat-exchanging of preheater 3, to reclaim
Heat, the normal temperature condensed water after the heat exchange of preheater 3 is discharged by outlet pipe.
The condensation-water drain of the preheater 3 is connected with outlet pipe, and the condensed water after heat exchange is discharged through outlet pipe.
Shown in reference picture 2, the sensor includes separation liquid level sensor, TEMP in OSLO separators 5
Device, the control circuit is connected with separating liquid level sensor, temperature sensor, feed pump 2, discharging pump 10 respectively.The sensing
Device includes the stiff liquid level sensor in the thickener 11, the control circuit respectively with stiff liquid level sensor, centrifuge
Device 12 is connected.
For ease of more fully understanding the utility model, evaporated crystallization device is saved below for the present embodiment sodium chloride solution
Brief technological process：Temperature in material buffer tank 1 is room temperature, and sodium chloride stoste is pumped into preheater 3 and preheater through feed pump 2
Condensed water produces heat exchange in 3, and temperature rises after preheater 3；Sodium chloride solution after preheating is entered in main heat exchanger 4,
And circulated by circulating pump 9 in main heat exchanger 4 and OSLO separators 5, with heating steam heat-exchanging in main heat exchanger 4, absorb
The sodium chloride solution of heat, which enters in OSLO separators 5, to be flashed, and isolates indirect steam and concentrate, and indirect steam is from OSLO
The steam (vapor) outlet of separator 5 enters vapour compression machine 6, and after the adiabatic compression of vapour compression machine 6, temperature and pressure gets a promotion；
Indirect steam after increasing temperature and pressure enters main heat exchanger 4 as heating steam and exchanged heat with sodium chloride solution, and water is condensed into after heat release,
And it is discharged into condensate water pot 7；The sodium chloride solution of absorption heat, which enters, to be flashed in OSLO separators 5 and isolates indirect steam and dense
Contracting liquid, the concentration of sodium chloride solution, which reaches to be pumped into stir in thickener 11 through discharging pump 10 during more than 33% supersaturation concentration, to be tied
Crystalline substance, then isolates sodium chloride crystal by thickener 11 and centrifuge apparatus 12；And the condensed water from preheater out finally
Can be with reuse or qualified discharge.
For the purpose of utility model is better achieved, here, a kind of energy-conserving steaming using the sodium chloride solution is also provided
Hair crystallizer is evaporated the control method of condensing crystallizing, comprises the following steps：
S1. the liquid level of vaporising device OSLO separators 5 is monitored by separation liquid level sensor, it is low in OSLO separators 5
Control circuit to automatically control unlatching feed pump 2 during liquid level, feed pump 2 is closed when the liquid level of OSLO separators 5 is high, it is ensured that its liquid level
Maintain stable region；
S2. the solution concentration in temperature sensor indirect monitoring vaporising device OSLO separators 5, when temperature reaches setting value
When, that is, solution concentration arrived setting value, automatically controlling discharging pump 10 by control circuit opens, heavy in OSLO separators 5
Drop crystal grain is pumped into thickener 11 through discharging pump 10, when solution temperature is reduced to a certain extent in OSLO separators 5, controls circuit
Automatically control discharging pump 10 to close, by the keying of discharging pump 10, the sedimentation crystal grain in OSLO separators 5 is timely entered stiff
Device 11 continues to crystallize；
S3. the liquid level of thickener 11 is monitored by stiff liquid level sensor, the solidliquid mixture of thickener 11 reaches setting
Liquid level after, by default mixing speed and rearing crystal time, after the further crystal growth of sodium chloride crystal to desired granularity,
Control circuit automatically controls unlatching centrifuge apparatus 12, is discharged into centrifuge apparatus 12 fixed quantity, isolates sodium chloride brilliant
Body.
Further, the level parameter of the control circuit, temperature of charge parameter can be adjusted, so as to meet different dense
Degree, the crystallization of the sodium chloride solution of quality need.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of energy-conservation evaporation crystallization equipment of sodium chloride solution, it is characterised in that the energy-conservation evaporation knot of the sodium chloride solution
Brilliant equipment includes preheating device, vaporising device, crystal separator, control device；The preheating device include material buffer tank,
Preheater, material buffer tank is connected with preheater by one section of conveying pipeline, and feed pump is provided with the conveying pipeline；The evaporation
Device includes main heat exchanger, OSLO separators, vapour compression machine and condensate water pot；The feed end connection of the main heat exchanger is pre-
The discharge end of hot device；OSLO separators are connected with main heat exchanger and form closed-loop path, and circulation is provided with the closed-loop path
Pump, the concentrate after being separated through OSLO separators is entered by circulating pump enters back into OSLO separation after heat exchange in main heat exchanger
Evaporate and further concentrate in device, concentrate is in the bottom gravity settling separation of OSLO separators, and solid is in gravity and concentrate stream
Under dynamic percussion, realize that solid sedimentation, crystal grain are brought up, supernatant is then separated by closed-loop path in main heat exchanger and OSLO
Evaporation is continued cycling through between device；The steam (vapor) outlet of the OSLO separators connects the air inlet of vapour compression machine by one section of appendix
Mouthful, the gas outlet of vapour compression machine is connected with main heat exchanger, and the condensation-water drain of main heat exchanger connects condensed water by water-supply-pipe
Tank；The crystal separator includes thickener, centrifuge apparatus, and thickener and centrifuge apparatus are connected successively by a discharging pump
It is connected on the discharge end of OSLO separators；The control device includes control circuit, sensor, by sensor to liquid level, crystallization
The data of situation are monitored, and automatically controlling each pump, centrifuge apparatus by control circuit runs, and realizes full-range automation.
2. the energy-conservation evaporation crystallization equipment of sodium chloride solution as claimed in claim 1, it is characterised in that the sensor includes
Separation liquid level sensor, temperature sensor in OSLO separators, the control circuit respectively with separate liquid level sensor,
Temperature sensor, feed pump, discharging pump connection.
3. the energy-conservation evaporation crystallization equipment of sodium chloride solution as claimed in claim 2, it is characterised in that the sensor includes
Stiff liquid level sensor in thickener, the control circuit is connected with stiff liquid level sensor, centrifuge apparatus respectively.
4. the energy-conservation evaporation crystallization equipment of sodium chloride solution as claimed in claim 3, it is characterised in that the condensate water pot is set
There is condensation-water drain, the condensation-water drain of the condensate water pot and the water inlet end of distilled water pump are connected by water-supply-pipe, it is described to steam
The water side of distilled water pump is connected on preheater, the condensation-water drain connection outlet pipe of the preheater.
5. the energy-conservation evaporation crystallization equipment of sodium chloride solution as claimed in claim 4, it is characterised in that the centrifuge apparatus
Second servo loop is provided between OSLO separators, second servo loop is provided with mother liquor pump, and the mother liquor obtained after centrifuge is by female
Liquid pump is sent in OSLO separators and circulated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621081649.1U CN206463529U (en) | 2016-09-26 | 2016-09-26 | A kind of energy-conservation evaporation crystallization equipment of sodium chloride solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621081649.1U CN206463529U (en) | 2016-09-26 | 2016-09-26 | A kind of energy-conservation evaporation crystallization equipment of sodium chloride solution |
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| CN206463529U true CN206463529U (en) | 2017-09-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334333A (en) * | 2016-09-26 | 2017-01-18 | 深圳市捷晶能源科技有限公司 | Energy-saving evaporative crystallization equipment for sodium chloride solution and control method thereof |
-
2016
- 2016-09-26 CN CN201621081649.1U patent/CN206463529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334333A (en) * | 2016-09-26 | 2017-01-18 | 深圳市捷晶能源科技有限公司 | Energy-saving evaporative crystallization equipment for sodium chloride solution and control method thereof |
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