CN108837544A - Twin-stage MVR evaporation concentration system - Google Patents
Twin-stage MVR evaporation concentration system Download PDFInfo
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- CN108837544A CN108837544A CN201810714291.9A CN201810714291A CN108837544A CN 108837544 A CN108837544 A CN 108837544A CN 201810714291 A CN201810714291 A CN 201810714291A CN 108837544 A CN108837544 A CN 108837544A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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Abstract
The present invention provides a kind of twin-stage MVR evaporation concentration systems, including：Weak solution inlet pipe and concentrated solution outlet pipe；The first evaporation heater and the second evaporation heater being arranged in series, first evaporation heater includes the first solution channel, second evaporation heater includes the second solution channel, wherein, the inlet communication of weak solution inlet pipe and the first solution channel, the outlet of first solution channel and the inlet communication of the second solution channel, the outlet of the second solution channel is connected to concentrated solution outlet pipe；First gas-liquid separator and the second gas-liquid separator, first gas-liquid separator is connect with the first evaporation heater, and the second gas-liquid separator is connect with the second evaporation heater, wherein, first gas-liquid separator includes first row port, and the second gas-liquid separator includes second exhaust port；Compressor, first row port and second exhaust port are connected to the air inlet of compressor, and it is high that technical solution of the present invention solves the problems, such as that MVR system in the prior art integrally consumes energy.
Description
Technical field
The present invention relates to apparatus of air conditioning technical fields, in particular to a kind of twin-stage MVR evaporation concentration system.
Background technique
In filed of air conditioning, to the mode that air dehumidifies generally pass through cold source by air themperature drop to dew point with
Under, make dehydration therein, but air themperature can also handle too low at this time, require to reach comfortable air-supply, also need
It is reheated, therefore will cause part cold and hot amount and offset waste.Solution dehumidification mode is then by solution and air surface
Water vapor partial pressure differential carry out matter transmitting, the two directly contacts, and the concentration of solution is bigger, and temperature is lower, dehumidifying effect is got over
By force.But solution needs to carry out re-enrichment process ie in solution regeneration after absorbing the moisture in air, so just can guarantee and dehumidified
Journey continuously goes on.
MVR (mechanical steam recompression technology, Mechanical Vapor Recompression) is by secondary steam
Recompression, which is carried out, by mechanical vapor compressor improves enthalpy, the heat source being then concentrated as weak solution in evaporator.But
MVR system in the prior art has the following disadvantages：
In the prior art, the secondary steam separated from gas-liquid separator is compressed and improves its enthalpy by compressor needs
Value.When compressor air suction mouth and larger exhaust outlet steam temperature rise, the overload of compressor will lead to, and compressor is made to run function
Consumption is high, and MVR system integrally consumes energy height.
Summary of the invention
The main purpose of the present invention is to provide a kind of twin-stage MVR evaporation concentration systems, to solve MVR in the prior art
System integrally consumes energy high problem.
To achieve the goals above, the present invention provides a kind of twin-stage MVR evaporation concentration systems, including：Weak solution inlet pipe
With concentrated solution outlet pipe；The first evaporation heater and the second evaporation heater being arranged in series, the first evaporation heater include first
Solution channel, the second evaporation heater include the second solution channel, wherein the import of weak solution inlet pipe and the first solution channel connects
It is logical, the outlet of the first solution channel and the inlet communication of the second solution channel, the outlet and concentrated solution outlet pipe of the second solution channel
Connection；First gas-liquid separator and the second gas-liquid separator, the first gas-liquid separator are connect with the first evaporation heater, the second gas
Liquid/gas separator is connect with the second evaporation heater, wherein the first gas-liquid separator includes first row port, the second gas-liquid separator
Including second exhaust port, compressor, first row port and second exhaust port are connected to the air inlet of compressor, and compressor is to
One evaporation heater and the second evaporation heater provide compressed steam, to heat to solution.
Further, twin-stage MVR evaporation concentration system further includes：The first branch pipe and the second branch pipe being arranged in parallel, first
The first end of branch pipe is connected to first row port, and the first end of the second branch pipe is connected to second exhaust port, the first general pipeline, and first
The second end of pipe is connect with after the convergence of the second end of the second branch pipe with the first end of the first general pipeline, the second end and pressure of the first general pipeline
The air inlet of contracting machine connects.
Further, the first evaporation heater further includes the first steam channel, and the second evaporation heater further includes the second steaming
Vapour channel, twin-stage MVR evaporation concentration system further include：First pipeline, the both ends of the first pipeline respectively with the exhaust outlet of compressor
It is connected to the entrance of the second steam channel；Second pipeline, the both ends of the second pipeline respectively with the outlet of the second steam channel and
The entrance of one steam channel is connected to.
Further, twin-stage MVR evaporation concentration system further includes：Auxiliary steam generating means, the exhaust outlet with compressor
Connection.
Further, twin-stage MVR evaporation concentration system further includes：Third pipeline, the both ends of third pipeline respectively with it is dilute molten
The inlet communication of liquid inlet pipe and the first solution channel；4th pipeline, the both ends of the 4th pipeline respectively with the first solution channel go out
The inlet communication of mouth and the second solution channel；5th pipeline, the both ends of the 5th pipeline respectively with the outlet of the second solution channel and
The connection of concentrated solution outlet pipe.
Further, the first gas-liquid separator further includes the first leakage fluid dram, and twin-stage MVR evaporation concentration system further includes the 6th
Pipeline, the both ends of the 6th pipeline respectively with the first leakage fluid dram and the 4th piping connection.
Further, the second gas-liquid separator further includes the second leakage fluid dram, and twin-stage MVR evaporation concentration system further includes the 7th
Pipeline, the both ends of the 7th pipeline respectively with the second leakage fluid dram and the 5th piping connection.
Further, twin-stage MVR evaporation concentration system further includes：First liquid storage structure, the part of third pipeline and the 4th
The part of pipeline is located in the first liquid storage structure；First circulation pump, third pipeline is arranged in is located at the outer of the first liquid storage structure
Side, and be located on the part in downstream of the first liquid storage structure.
Further, twin-stage MVR evaporation concentration system further includes：Second liquid storage structure, the part and the 5th of the 4th pipeline
The part of pipeline is located in the second liquid storage structure；Second circulation pump, the 4th pipeline is arranged in is located at the outer of the second liquid storage structure
Side, and be located on the part in downstream of the second liquid storage structure；Third circulating pump, the 5th pipeline is arranged in is located at the second liquid storage knot
The outside of structure, and be located on the part in downstream of the second liquid storage structure.
Further, weak solution inlet pipe includes the third branch pipe and the 4th branch pipe being arranged in parallel, and twin-stage MVR is concentrated by evaporation system
System further includes the second preheating structure with the first preheating structure of third branch pipe cooperation and with the cooperation of the 4th branch pipe.
Further, twin-stage MVR evaporation concentration system further includes：8th pipeline, the first end of the 8th pipeline are steamed with second
The outlet in vapour channel connects；The first end of 9th pipeline, the 9th pipeline is connect with the outlet of the first steam channel, and second end is formed
The second end of condensed water discharge outlet, the 8th pipeline is connected on the 9th pipeline, wherein the part of third branch pipe and the 9th pipeline
Part is located in the first preheating structure, so as to exchange heat between the part of third branch pipe and the part of the 9th pipeline.
Further, the part of the 4th branch pipe and the part of concentrated solution outlet pipe are located in the second preheating structure, so that the 4th
It exchanges heat between the part of branch pipe and the part of concentrated solution outlet pipe.
It applies the technical scheme of the present invention, twin-stage MVR evaporation concentration system includes concatenated first evaporation heater and
Two evaporation heaters.Wherein, a point two-stage heats solution respectively for the first evaporation heater and the second evaporation heater.Together
When, the secondary steam of secondary steam and the second gas-liquid separator separates from the first gas-liquid separator separates enters compression after mixing
The air inlet of machine.Above-mentioned mixed vapour temperature and MVR system in the prior art into the vapor (steam) temperature phase before compressor
Than higher, thus it is less in the acting compared with the existing technology of compressor, and load is smaller.So that twin-stage MVR evaporation is dense
Compression system integrally consumes energy less.Therefore technical solution of the present invention solve MVR system in the prior art integrally consume energy it is high
Problem.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings：
Fig. 1 shows the structural schematic diagram of the embodiment of twin-stage MVR evaporation concentration system according to the present invention.
Wherein, above-mentioned attached drawing includes the following drawings label：
10, weak solution inlet pipe；11, third branch pipe；12, the 4th branch pipe；20, concentrated solution outlet pipe；30, the first evaporation heating
Device；40, the second evaporation heater；50, the first gas-liquid separator；51, first row port；52, the first leakage fluid dram；60, the second gas
Liquid/gas separator；61, second exhaust port；62, the second leakage fluid dram；70, compressor；80, the first branch pipe；90, the second branch pipe；100,
One general pipeline；110, the first pipeline；120, the second pipeline；130, third pipeline；140, the 4th pipeline；150, the 5th pipeline；160,
6th pipeline；170, the 7th pipeline；180, the first liquid storage structure；190, first circulation pumps；200, the second liquid storage structure；210,
Two circulating pumps；220, third circulating pump；230, the first preheating structure；240, the second preheating structure；250, the 8th pipeline；260,
Nine pipelines；270, auxiliary steam generating means.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the application and its application or making
Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall in the protection scope of this application.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As shown in Figure 1, the twin-stage MVR evaporation concentration system of the present embodiment includes weak solution inlet pipe 10 and concentrated solution outlet pipe
20, the first evaporation heater 30 and the second evaporation heater 40, the first gas-liquid separator 50 and the second gas-liquid being arranged in series point
From device 60 and compressor 70.Wherein, the first evaporation heater 30 includes the first solution channel, and the second evaporation heater 40 includes
Second solution channel.The inlet communication of weak solution inlet pipe 10 and the first solution channel, the outlet of the first solution channel and second molten
The outlet of the inlet communication in liquid channel, the second solution channel is connected to concentrated solution outlet pipe 20.First gas-liquid separator 50 and first
Evaporation heater 30 connects, and the second gas-liquid separator 60 is connect with the second evaporation heater 40.Further, the first gas-liquid separation
Device 50 includes first row port 51, and the second gas-liquid separator 60 includes second exhaust port 61.70 first row port of compressor, 51 He
Second exhaust port 61 is connected to the air inlet of compressor 70, and compressor 70 heats the first evaporation heater 30 and the second evaporation
Device 40 provides compressed steam, to heat to solution.
Using the technical solution of the present embodiment, twin-stage MVR evaporation concentration system include concatenated first evaporation heater and
Second evaporation heater.Wherein, a point two-stage heats solution respectively for the first evaporation heater and the second evaporation heater.Together
When, the secondary steam of secondary steam and the second gas-liquid separator separates from the first gas-liquid separator separates enters compression after mixing
The air inlet of machine.Above-mentioned mixed vapour temperature and MVR system in the prior art into the vapor (steam) temperature phase before compressor
Than higher, thus it is less in the acting compared with the existing technology of compressor, and load is smaller.So that twin-stage MVR evaporation is dense
Compression system integrally consumes energy less.Therefore the technical solution of the present embodiment solves MVR system in the prior art and integrally consumes energy height
The problem of.
In said structure, weak solution successively passes through the first of the first evaporation heater 30 after the entrance of weak solution inlet pipe 10
Second solution channel of solution channel and the second evaporation heater 40, to realize that double flash evaporation is heated.Further, the first gas
Liquid/gas separator 50 is by the first evaporation heater 30, the secondary steam in gas-liquid mixture that weak solution explosive evaporation process generates
Separation.Correspondingly, the second gas-liquid separator 60 is by the second evaporation heater 40, the gas-liquid that weak solution heating evaporation process generates
Steam separation in mixture.The separated steam of first gas-liquid separator 50 and the separated steam of the second gas-liquid separator 60
Enter compressor 70 after mixing and carries out compression heating.Steam after heating is heated to the first evaporation heater 30 and the second evaporation
Device 40 provides heat source, to realize the circulating-heating concentration of solution.
As shown in Figure 1, in the technical scheme of this embodiment, twin-stage MVR evaporation concentration system further includes：It is arranged in parallel
First branch pipe 80 and the second branch pipe 90 and the first general pipeline 100.Wherein, the first end of the first branch pipe 80 and first row port 51
Connection, the first end of the second branch pipe 90 are connected to second exhaust port 61.The of the second end of first branch pipe 80 and the second branch pipe 90
It is connect after the convergence of two ends with the first end of the first general pipeline 100, the second end of the first general pipeline 100 and the air inlet of compressor 70 connect
It connects.Specifically, the first branch pipe 80 and the second branch pipe 90 form pipeline in parallel.The isolated steam of first gas-liquid separator 50 from
First row port 51 enters to the first branch pipe 80, and the isolated steam of the second gas-liquid separator 60 enters to from second exhaust port 61
Two branch pipes 90.Two strands of steam enter to the air inlet of compressor 70 after the first general pipeline 100 mixing.
As shown in Figure 1, in the technical scheme of this embodiment, the first evaporation heater 30 further includes the first steam channel,
Second evaporation heater 40 further includes the second steam channel, and twin-stage MVR evaporation concentration system further includes the first pipeline 110 and second
Pipeline 120.Wherein, the both ends of the first pipeline 110 are connected to the entrance of the exhaust outlet of compressor 70 and the second steam channel respectively.
The both ends of second pipeline 120 are connected to the entrance of the outlet of the second steam channel and the first steam channel respectively.Specifically, first
Steam channel exchanges heat with the first solution channel, is concentrated by evaporation to realize to the first order of solution.Correspondingly, the second steam
Channel exchanges heat with the second solution channel, is concentrated by evaporation to realize to the second level of solution.Pass through the first above-mentioned pipeline
110 and second pipeline 120 set-up mode so that it is logical to first pass through the second steam from the high-temperature steam that the exhaust outlet of compressor is discharged
Road, then pass through the first steam channel.Specifically, since the solution concentration being located in the first evaporation heater 30 is lower, boiling
Point is lower, and the vapor (steam) temperature needed is relatively low.Solution in the second evaporation heater 40 has been subjected to level-one concentrate, so dense
Degree is higher, therefore boiling point is higher, and the vapor (steam) temperature needed is also higher.Therefore above structure first passes through the higher steam of temperature
Second steam channel simultaneously heats the higher solution of concentration, and the steam after once exchanging heat then is made to pass through the first steaming again
The lower solution of concentration is simultaneously heated in vapour channel, so that the energy of high-temperature steam obtains more sufficiently, more reasonably answering
With.
As shown in Figure 1, in the technical scheme of this embodiment, twin-stage MVR evaporation concentration system further includes：Auxiliary steam is raw
At device 270, auxiliary steam generating means 270 are connected to the exhaust outlet of compressor 70.Specifically, auxiliary steam generating means are same
When connect with the first above-mentioned pipeline 110.When twin-stage MVR evaporation concentration system in the present embodiment just starts, auxiliary steam
Generating means first generate hot steam and provide heat to the first evaporation heater 30 and the second evaporation heater 40.As twin-stage MVR
After evaporation concentration system runs a period of time and forms circulation, above-mentioned auxiliary steam generating means 270 can be closed.Above-mentioned
Auxiliary steam generating means 270 can commonly provide the device of steam for boiler etc..
As shown in Figure 1, in the technical scheme of this embodiment, twin-stage MVR evaporation concentration system further includes third pipeline
130, the 4th pipeline 140 and the 5th pipeline 150.Wherein, the both ends of third pipeline 130 are molten with weak solution inlet pipe 10 and first respectively
The inlet communication in liquid channel.The both ends of 4th pipeline 140 respectively with the first solution channel outlet and the second solution channel into
Mouth connection.The both ends of 5th pipeline 150 are connected to the outlet of the second solution channel and concentrated solution outlet pipe 20 respectively.Specifically, dilute
After solution enters system from weak solution inlet pipe 10, first passes through third pipeline 130 and enter to the first molten of the first evaporation heater 30
First order heating is carried out in liquid channel, then solution enters to the second molten of the second evaporation heater 40 by the 4th pipeline 140
Second level heating is carried out in liquid channel.Finally, the concentrated solution after being evaporated concentration passes through the 5th pipeline 150 and concentrated solution outlet pipe 20
It is flowed out from system.
As shown in Figure 1, in the technical scheme of this embodiment, the first gas-liquid separator 50 further includes the first leakage fluid dram 52,
Twin-stage MVR evaporation concentration system further includes the 6th pipeline 160, the both ends of the 6th pipeline 160 respectively with the first leakage fluid dram 52 and
The connection of four pipelines 140.Second gas-liquid separator 60 further includes the second leakage fluid dram 62, and twin-stage MVR evaporation concentration system further includes
Seven pipelines 170, the both ends of the 7th pipeline 170 are connect with the second leakage fluid dram 62 and the 5th pipeline 150 respectively.Specifically, the first gas
Solution after separation is discharged liquid/gas separator 50 from the first leakage fluid dram 52 of bottom, while solution is flowed by the 6th pipeline 160
To the 4th pipeline 140, to enter to the second evaporation heater 40 and carry out double evaporation-cooling heating.Second gas-liquid separator 60 will divide
Solution from after is discharged from the second leakage fluid dram 62 of bottom, and flows into the 5th pipeline 150 by the 7th pipeline 170, and final
From 20 discharge system of concentrated solution outlet pipe.
As shown in Figure 1, in the technical scheme of this embodiment, twin-stage MVR evaporation concentration system further includes the first liquid storage knot
Structure 180 and first circulation pump 190.Specifically, the part of third pipeline 130 and the part of the 4th pipeline 140 are located at the first liquid storage
In structure 180；The outsides positioned at the first liquid storage structure 180 that first circulation pump 190 is arranged in third pipeline 130, and positioned at the
On the part in the downstream of one liquid storage structure 180.Specifically, the first liquid storage structure 180 only plays the role of storing solution.
The setting of first circulation pump 190 enters to the flow of the solution in the first evaporation heater convenient for control.Above-mentioned " first circulation
The outside positioned at the first liquid storage structure 180 of third pipeline 130 is arranged in pump 190, and is located at the downstream of the first liquid storage structure 180
Part on " refer to according in third pipeline 130 solution flow direction, third pipeline 130 be located at the first liquid storage knot
In two sections of the outside of structure 180, on the pipeline section in the downstream relative to the first liquid storage structure 180.
As shown in Figure 1, in the technical scheme of this embodiment, twin-stage MVR evaporation concentration system further includes the second liquid storage knot
Structure 200, second circulation pump 210 and third circulating pump 220.Wherein, the part of the part of the 4th pipeline 140 and the 5th pipeline 150
In the second liquid storage structure 200.What second circulation pump 210 was arranged in the 4th pipeline 140 is located at the outer of the second liquid storage structure 200
Side, and be located on the part in downstream of the second liquid storage structure 200.What third circulating pump 220 was arranged in the 5th pipeline 150 is located at the
The outside of two liquid storage structures 200, and be located on the part in downstream of the second liquid storage structure 200.Wherein, with the first liquid storage structure
180 is identical, and the second liquid storage structure 200 also only plays the role of storing solution.The setting of second circulation pump 210 is convenient for control
System enters to the flow of the solution of the second evaporation heater 40, and the setting of third circulating pump 220 is just controlled from concentrated solution outlet pipe 20
The flow of the concentrated solution of outflow.For it is above-mentioned " second circulation pump 210 the 4th pipeline 140 is set be located at the second liquid storage knot
The outside of structure 200, and be located on the part in downstream of the second liquid storage structure 200 ", and " third circulating pump 220 is arranged the 5th
The outside positioned at the second liquid storage structure 200 of pipeline 150, and be located on the part in downstream of the second liquid storage structure 200 " referred to
Meaning, with it is above-mentioned " outsides positioned at the first liquid storage structure 180 of third pipeline 130 are arranged in first circulation pump 190, and
On the part in the downstream of the first liquid storage structure 180 " meaning it is identical, details are not described herein.
It should be noted that from figure 1 it will be seen that the 4th pipeline 140 is located at part and position in the first liquid storage structure 180
It is not same a part of in the part in the second liquid storage structure 200.
As shown in Figure 1, in the technical scheme of this embodiment, weak solution inlet pipe 10 includes the third branch pipe 11 being arranged in parallel
With the 4th branch pipe 12, twin-stage MVR evaporation concentration system further includes the first preheating structure 230 cooperated with third branch pipe 11 and with the
Second preheating structure 240 of four branch pipes 12 cooperation.Specifically, the first preheating structure 230 and the second preheating structure 240 can into
Solution before entering system carries out heating preheating, to reduce the burden of the evaporation heating of system, and makes full use of in system and is produced
Raw energy.
As shown in Figure 1, in the technical scheme of this embodiment, twin-stage MVR evaporation concentration system further includes the 8th pipeline
250 and the 9th pipeline 260.Wherein, the first end of the 8th pipeline 250 is connect with the outlet of the second steam channel.9th pipeline 260
First end connect with the outlet of the first steam channel, second end formed condensed water discharge outlet.The second end of 8th pipeline 250 connects
It connects on the 9th pipeline 260.Further, the part of third branch pipe 11 and the part of the 9th pipeline 260 are located at the first preheating knot
In structure 230, so as to exchange heat between the part of third branch pipe 11 and the part of the 9th pipeline 260.Specifically, steam enters to
After second evaporation heater 40 is exchanged heat, condensed water is discharged from the 8th pipeline 250.Steam enters to the first evaporation heater 30
After being exchanged heat, condensed water is discharged from the 9th pipeline 260, after two strands of above-mentioned condensed waters are converged by the 9th pipeline 260, enters
It to the first preheating structure 230, and exchanges heat with third branch pipe 11, solution weak solution is preheated.Above structure can
More fully utilize generated heat in system.
As shown in Figure 1, in the technical scheme of this embodiment, the part of the 4th branch pipe 12 and the part of concentrated solution outlet pipe 20
In the second preheating structure 240, so as to exchange heat between the part of the 4th branch pipe 12 and the part of concentrated solution outlet pipe 20.Tool
Body, the heat part of concentrated solution passes to weak solution, while can cool down to concentrated solution, and it is subsequent to improve concentrated solution
Effect on moisture extraction.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present application, it is to be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System is merely for convenience of description the application and simplifies description, and in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is the limitation to the application protection scope；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
Apply for the limitation of protection scope.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of twin-stage MVR evaporation concentration system, which is characterized in that including：
Weak solution inlet pipe (10) and concentrated solution outlet pipe (20)；
The first evaporation heater (30) and the second evaporation heater (40) being arranged in series, the first evaporation heater (30) packet
The first solution channel is included, second evaporation heater (40) includes the second solution channel, wherein the weak solution inlet pipe (10)
With the inlet communication of first solution channel, the outlet of first solution channel connects with the import of second solution channel
Logical, the outlet of second solution channel is connected to the concentrated solution outlet pipe (20)；
First gas-liquid separator (50) and the second gas-liquid separator (60), first gas-liquid separator (50) and described first are steamed
Heater (30) connection is sent out, second gas-liquid separator (60) connect with second evaporation heater (40), wherein described
First gas-liquid separator (50) includes first row port (51), and second gas-liquid separator (60) includes second exhaust port
(61)；
Compressor (70), the air inlet of the first row port (51) and the second exhaust port (61) with the compressor (70)
Mouth connection, the compressor (70) provide compression to first evaporation heater (30) and second evaporation heater (40)
Steam afterwards, to be heated to solution.
2. twin-stage MVR evaporation concentration system according to claim 1, which is characterized in that the twin-stage MVR is concentrated by evaporation system
System further includes：
The first branch pipe (80) and the second branch pipe (90) being arranged in parallel, the first end of first branch pipe (80) and the first row
Port (51) connection, the first end of second branch pipe (90) are connected to the second exhaust port (61),
First general pipeline (100), after the second end convergence of the second end of first branch pipe (80) and second branch pipe (90) with
The first end of first general pipeline (100) connects, the second end of first general pipeline (100) and the air inlet of the compressor (70)
Mouth connection.
3. twin-stage MVR evaporation concentration system according to claim 1, which is characterized in that first evaporation heater
It (30) further include the first steam channel, second evaporation heater (40) further includes the second steam channel, and the twin-stage MVR steams
Sending out concentration systems further includes：
First pipeline (110), the both ends of first pipeline (110) respectively with the exhaust outlet of the compressor (70) and described
The entrance of two steam channels is connected to；
Second pipeline (120), the both ends of second pipeline (120) respectively with the outlet of second steam channel and described
The entrance of one steam channel is connected to.
4. twin-stage MVR evaporation concentration system according to claim 1, which is characterized in that the twin-stage MVR is concentrated by evaporation system
System further includes：
Auxiliary steam generating means (270) are connected to the exhaust outlet of the compressor (70).
5. twin-stage MVR evaporation concentration system according to claim 3, which is characterized in that the twin-stage MVR is concentrated by evaporation system
System further includes：
Third pipeline (130), the both ends of the third pipeline (130) respectively with the weak solution inlet pipe (10) and described first molten
The inlet communication in liquid channel；
4th pipeline (140), the both ends of the 4th pipeline (140) respectively with the outlet of first solution channel and described
The inlet communication of two solution channels；
5th pipeline (150), the both ends of the 5th pipeline (150) respectively with the outlet of second solution channel and described dense
Solution outlet pipe (20) connection.
6. twin-stage MVR evaporation concentration system according to claim 5, which is characterized in that first gas-liquid separator
It (50) further include the first leakage fluid dram (52), the twin-stage MVR evaporation concentration system further includes the 6th pipeline (160), and the described 6th
The both ends of pipeline (160) are connect with first leakage fluid dram (52) and the 4th pipeline (140) respectively.
7. twin-stage MVR evaporation concentration system according to claim 5, which is characterized in that second gas-liquid separator
It (60) further include the second leakage fluid dram (62), the twin-stage MVR evaporation concentration system further includes the 7th pipeline (170), and the described 7th
The both ends of pipeline (170) are connect with second leakage fluid dram (62) and the 5th pipeline (150) respectively.
8. twin-stage MVR evaporation concentration system according to claim 5, which is characterized in that the twin-stage MVR is concentrated by evaporation system
System further includes：
First liquid storage structure (180), the part of the third pipeline (130) and the part of the 4th pipeline (140) are located at institute
It states in the first liquid storage structure (180)；
First circulation pumps (190), is arranged in the outside positioned at first liquid storage structure (180) of the third pipeline (130),
And it is located on the part in downstream of first liquid storage structure (180).
9. twin-stage MVR evaporation concentration system according to claim 5, which is characterized in that the twin-stage MVR is concentrated by evaporation system
System further includes：
Second liquid storage structure (200), the part of the 4th pipeline (140) and the part of the 5th pipeline (150) are located at institute
It states in the second liquid storage structure (200)；
Second circulation pumps (210), is arranged in the outside positioned at second liquid storage structure (200) of the 4th pipeline (140),
And it is located on the part in downstream of second liquid storage structure (200)；
Third circulating pump (220) is arranged in the outside positioned at second liquid storage structure (200) of the 5th pipeline (150),
And it is located on the part in downstream of second liquid storage structure (200).
10. twin-stage MVR evaporation concentration system according to claim 3, which is characterized in that weak solution inlet pipe (10) packet
The third branch pipe (11) and the 4th branch pipe (12) being arranged in parallel are included, the twin-stage MVR evaporation concentration system further includes and described
The first preheating structure (230) of three branch pipes (11) cooperation and the second preheating structure (240) cooperated with the 4th branch pipe (12).
11. twin-stage MVR evaporation concentration system according to claim 10, which is characterized in that the twin-stage MVR is concentrated by evaporation
System further includes：
The first end of 8th pipeline (250), the 8th pipeline (250) is connect with the outlet of second steam channel；
The first end of 9th pipeline (260), the 9th pipeline (260) is connect with the outlet of first steam channel, and second
End forms condensed water discharge outlet, and the second end of the 8th pipeline (250) is connected on the 9th pipeline (260),
Wherein, the part of the third branch pipe (11) and the part of the 9th pipeline (260) are located at first preheating structure
(230) in, so as to exchange heat between the part of the third branch pipe (11) and the part of the 9th pipeline (260).
12. twin-stage MVR evaporation concentration system according to claim 10, which is characterized in that the 4th branch pipe (12)
Part and the part of the concentrated solution outlet pipe (20) are located in second preheating structure (240), so that the 4th branch pipe
(12) it exchanges heat between the part of part and the concentrated solution outlet pipe (20).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810714291.9A CN108837544A (en) | 2018-06-29 | 2018-06-29 | Twin-stage MVR evaporation concentration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810714291.9A CN108837544A (en) | 2018-06-29 | 2018-06-29 | Twin-stage MVR evaporation concentration system |
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| CN108837544A true CN108837544A (en) | 2018-11-20 |
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ID=64201323
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810714291.9A Pending CN108837544A (en) | 2018-06-29 | 2018-06-29 | Twin-stage MVR evaporation concentration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314397A (en) * | 2019-05-28 | 2019-10-11 | 安徽润恩环境科技有限公司 | A kind of MVR falling film evaporator for lithium hydroxide evaporative crystallization |
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