CN208809491U - A kind of evaporation concentration system - Google Patents
A kind of evaporation concentration system Download PDFInfo
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- CN208809491U CN208809491U CN201820594104.3U CN201820594104U CN208809491U CN 208809491 U CN208809491 U CN 208809491U CN 201820594104 U CN201820594104 U CN 201820594104U CN 208809491 U CN208809491 U CN 208809491U
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- evaporator
- evaporation concentration
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Abstract
The utility model discloses a kind of evaporation concentration systems to improve the energy-saving effect of system so that evaporation concentration system utilizes secondary steam.Evaporation concentration system in the utility model includes raw material liquid treating system and working medium heat-exchange system, and raw material liquid treating system includes evaporator；Working medium heat-exchange system includes passing sequentially through working medium pipeline connection working medium evaporator and working medium condenser, in which: working medium condenser is connected to evaporator by primary steam pipeline, and working medium evaporator is connected to evaporator by secondary steam pipeline；Evaporator is used for the primary steam enrichment materials liquid provided using working medium condenser；Working medium evaporator is used for the Secondary-steam heating working medium using evaporator discharge.
Description
Technical field
The utility model relates to evaporation concentration equipment technical fields, more particularly to a kind of evaporation concentration system.
Background technique
Evaporation and concentration is very typical chemical engineering unit operation in industrial production, be widely used in chemical industry, light industry, food,
In the industrial processes such as pharmacy, sea water desalination, sewage treatment.The material being often evaporated in industrial production is aqueous solution, is commonly used
Saturated vapor is as heating source, and " secondary steam " being evaporated from solution be since pressure is low, quality is low, and is unfavorable for defeated
It send, substantially less than with gas bar part.Therefore secondary steam is typically directly emitted into atmosphere, cooled system condensing or uses low pressure
Steaming plant causes environmental pollution and energy waste.
Currently, there are mainly three types of techniques in the field of evaporation and concentration: traditional multiple-effect evaporation (Multiple
EffectEvaporator, abbreviation MEE), thermodynamic steam recompression (Thermal Vapor Re-compression, referred to as
TVR), function of mechanical steam recompression (Mechanical Vapor Re-compression, abbreviation MVR).Wherein, MEE system needs to spend
Take external heat source and heat is provided, the secondary steam that effect evaporation generates before heated material makes is used as the heat source of next effect, then uses
The devices such as cooling tower produce cooling water to cool down the secondary steam of end effect evaporation；TVR system adds one on the basis of MEE system
A jet pump spends part external heat source, carrys out the part secondary steam of injection material generation, heats after increasing temperature and pressure as material
Heat source.Although both techniques carry out processing utilization to secondary steam, fail to make full use of secondary steam, and be both needed to
Consume more cooling water.MVR system is in electric vapour price than that can make full use of the latent heat of secondary steam, still in suitable situation
MVR vapor Compressor Technology is immature, is not suitable for low vacuum low-temperature evaporation, and when solution biggish for boiling point temperature rise,
Energy-saving effect is not significant.
Utility model content
The purpose of the utility model embodiment is to provide a kind of evaporation concentration system, with what is generated using evaporation concentration system
Secondary steam improves the energy-saving effect of system.
The utility model embodiment provides a kind of evaporation concentration system, which includes material liquid processing system
System and working medium heat-exchange system, the raw material liquid treating system includes evaporator；The working medium heat-exchange system includes passing sequentially through work
Matter pipeline is connected to working medium evaporator and working medium condenser, in which:
The working medium condenser is connected to the evaporator by primary steam pipeline, the working medium evaporator and evaporator
It is connected to by secondary steam pipeline；
The evaporator is used for the primary steam enrichment materials liquid provided using the working medium condenser；The working medium evaporation
Device is used for the Secondary-steam heating working medium using evaporator discharge.
In further technical solution, the working medium heat-exchange system further includes compressor, the working medium evaporator, compressor
It is connected to working medium condenser by working medium pipeline head and the tail, the compressor is used to working medium being compressed into high temperature and pressure working medium.
In further technical solution, the raw material liquid treating system further includes by material liquid pipeline and the evaporator
The feed preheater of connection；The working medium evaporator is also connected to the feed preheater by condensing water conduit, the raw material
Preheater is used for the condensed water preheating material liquid using working medium evaporator discharge.
In further technical solution, evaporation concentration system includes at least two evaporators, at least two evaporator
It is sequentially connected, the first evaporator is connected to the feed preheater, and last evaporator is connected to working medium evaporator；
Next evaporator connects the secondary steam outlet of a upper evaporator；
The condensed water discharge outlet of first evaporator is connect with the working medium condenser, the condensed water of non-first evaporator
Outlet is connected to the feed preheater.
In specific technical solution, evaporation concentration system includes two evaporators.
In further technical solution, throttle valve is provided between the working medium evaporator and the working medium condenser.
In optional technical solution, the material liquid includes the acid solution of chloride containing iron, the acid solution of chloride containing ferrous iron, chloride containing
The acid solution of copper.
In the embodiment, the heat of secondary steam is utilized, the part heat of secondary steam is utilized in working medium evaporator
Amount carrys out heating working medium, thus it is higher to the utilization rate of secondary steam heat, improve the energy-saving effect of system.
Detailed description of the invention
Fig. 1 is the evaporation concentration system structural schematic diagram of an embodiment of the present invention；
Fig. 2 is the evaporation concentration system structural schematic diagram of another embodiment of the utility model.
Appended drawing reference:
1- feed preheater；11- preheater condensing water inlet；
12- preheater condensation-water drain；13- preheater material liquid entrance；
The outlet of 14- preheater material liquid；2- evaporator；
21- primary steam entrance；22- evaporator condensation water out；
23- evaporator material liquid entrance；The outlet of 24- evaporator material liquid；
The outlet of 25- evaporator secondary steam；The first evaporator of 26-；
The last evaporator of 27-；3- working medium evaporator；
31- working medium evaporator secondary steam entrance；32- working medium evaporator condensation water out；
33- working medium evaporator working medium entrances；34- working medium evaporator sender property outlet；
4- compressor；41- compressor working medium entrances；
42- compressor sender property outlet；5- working medium condenser；
51- working medium condenser working medium entrances；52- working medium condenser sender property outlet；
The outlet of 53- primary steam；54- working medium condenser condensing water inlet；
6- throttle valve.
Specific embodiment
Secondary steam is made full use of for evaporation concentration system, improves the energy-saving effect of system.The utility model is implemented
Example provides a kind of evaporation concentration system.To keep the purpose of this utility model, technical solution and advantage clearer, lift below real
Example is applied to be described in further detail the utility model.
As shown in Figure 1, the utility model implementation provides a kind of evaporation concentration system, which includes raw material
Liquid treating system and working medium heat-exchange system, raw material liquid treating system include evaporator 2；Working medium heat-exchange system includes passing sequentially through work
Matter pipeline is connected to working medium evaporator 3 and working medium condenser 5, in which: working medium condenser 5 and evaporator 2 pass through primary steam pipeline
Connection, working medium evaporator 3 are connected to evaporator 2 by secondary steam pipeline；Evaporator 2 is used to provide using working medium condenser 5
Primary steam enrichment materials liquid；Working medium evaporator 3 is used for the Secondary-steam heating working medium being discharged using evaporator 2.
With continued reference to FIG. 1, there is evaporator 2 primary steam entrance 21, evaporator condensation water to go out in specific embodiment
Mouth 22, evaporator material liquid entrance 23, evaporator material liquid outlet 24 and evaporator secondary steam outlet 25；Working medium evaporator 3
With working medium evaporator secondary steam entrance 31, working medium evaporator condensation water out 32, working medium evaporator working medium entrances 33, working medium
Evaporator sender property outlet 34, working medium evaporator secondary steam entrance 31 are connected to evaporator secondary steam outlet 25；Working medium condensation
Device 5 has working medium condenser working medium entrances 51, working medium condenser sender property outlet 52, primary steam outlet 53 and working medium condenser cold
Condensate entrance 54, working medium condenser sender property outlet 52 are connected to working medium evaporator working medium entrances 33, primary steam outlet 53 and one
Secondary steam inlet 21 is connected to, and working medium condenser condensing water inlet 54 is connected to evaporator condensation water out 22.
The evaporation concentration system of the embodiment, the course of work are as follows:
Material liquid enter evaporator 2 concentration, it is concentrated after material liquid flowed out from evaporator 2, become final concentrate.
The primary steam generated in working medium condenser 5 initially enters in evaporator 2 and provides heat source to be concentrated by evaporation, one after pervaporation
Secondary steam is condensed into condensed water and flows out from evaporator 2, enters in working medium condenser 5, after the heat exchange of High-temperature cooling working medium, weight
It newly is evaporated to primary steam, is re-introduced into evaporator 2 and carries out circulating and evaporating.Material liquid is evaporated in evaporator 2 two
Secondary steam is flowed out from evaporator 2, is entered in working medium evaporator 3, for being heated to working medium, the condensation that secondary steam generates
Water is discharged from working medium evaporator 3.
In the embodiment, the heat of secondary steam is utilized, the part heat of secondary steam is utilized in working medium evaporator 3
Amount carrys out heating working medium, thus it is higher to the utilization rate of secondary steam heat, improve the energy-saving effect of system.
With continued reference to FIG. 1, in further embodiment, working medium heat-exchange system further includes compressor 4, working medium evaporator 3,
Compressor 4 is connected to working medium condenser 5 by working medium pipeline head and the tail, and compressor 4 is used to working medium being compressed into high temperature and pressure working medium.
In the embodiment, compressor 4 has compressor working medium entrances 41 and compressor sender property outlet 42, and compressor working medium enters
Mouth 41 is connected to working medium evaporator sender property outlet 34；Working medium condenser working medium entrances 51 are connected to compressor sender property outlet 42.
The course of work of working medium heat-exchange system are as follows: low temperature liquid working medium enters in working medium evaporator 3, carries out with high-temperature steam
Heat exchange, low temperature liquid working medium flashes to gaseous form by Secondary-steam heating in working medium evaporator 3, and gaseous working medium enters compression
In machine 4, it is compressed into high pressure gaseous working medium, high pressure gaseous working medium enters in working medium condenser 5, condenses with primary steam
Water heat exchange production primary steam, gaseous working medium is cooled to high-pressure liquid working medium later, enters back into working medium evaporator 3 and is followed
Ring.
In further embodiment, raw material liquid treating system further includes the original being connected to by material liquid pipeline with evaporator 2
Expect preheater 1；Working medium evaporator 3 is also connected to feed preheater 1 by condensing water conduit, and feed preheater 1 is used to utilize work
The condensed water preheating material liquid that matter evaporator 3 is discharged.
In the embodiment, evaporator material liquid entrance 23 is connected to preheater material liquid outlet 14, working medium evaporator condensation
Water out 32 is connected to the heat for taking full advantage of secondary steam with preheater condensing water inlet 11, first sharp in working medium evaporator 3
After partial heat with secondary steam, and the heat of formation condensed water after secondary steam heat release is utilized, in feed preheater 1
In preheated for material liquid, thus higher to the utilization rate of secondary steam heat, further improve the energy-saving effect of system.
With continued reference to FIG. 1, the evaporation concentration system that one specific embodiment of the utility model provides includes that raw material is pre-
Hot device 1, evaporator 2, working medium evaporator 3, compressor 4 and working medium condenser 5, in which: feed preheater 1 and evaporator 2 pass through
Feed conduit is sequentially communicated, and is used for enrichment materials liquid；Working medium evaporator 3, compressor 4 and working medium condenser 5 pass through working medium pipeline
Head and the tail are connected to, and working medium condenser 5 is also connected to evaporator 2, for providing primary steam, working medium evaporator 3 and steaming for evaporator 2
It sends out device 2 to be connected to, the Secondary-steam heating working medium for being discharged using evaporator 2, working medium evaporator 3 is also connected with feed preheater 1
It is logical, it is raw material preheating for the condensed water formed after secondary steam heat release to be delivered to feed preheater 1.
With continued reference to FIG. 1, feed preheater 1 has preheater condensing water inlet 11, preheater condensation-water drain 12, pre-
Hot device material liquid entrance 13 and preheater material liquid outlet 14；There is evaporator 2 primary steam entrance 21, evaporator condensation water to go out
Mouth 22, evaporator material liquid entrance 23, evaporator material liquid outlet 24 and evaporator secondary steam outlet 25, evaporator material liquid
Entrance 23 is connected to preheater material liquid outlet 14；There is working medium evaporator 3 working medium evaporator secondary steam entrance 31, working medium to steam
Send out device condensation-water drain 32, working medium evaporator working medium entrances 33, working medium evaporator sender property outlet 34, working medium evaporator secondary steam
Entrance 31 is connected to evaporator secondary steam outlet 25, and working medium evaporator condensation water out 32 and preheater condensing water inlet 11 connect
It is logical；Compressor 4 has compressor working medium entrances 41 and compressor sender property outlet 42, compressor working medium entrances 41 and working medium evaporator
Sender property outlet 34 is connected to；Working medium condenser 5 has working medium condenser working medium entrances 51, working medium condenser sender property outlet 52, primary
Steam (vapor) outlet 53 and working medium condenser condensing water inlet 54, working medium condenser working medium entrances 51 and compressor sender property outlet 42 connect
Logical, working medium condenser sender property outlet 52 is connected to working medium evaporator working medium entrances 33, and primary steam outlet 53 enters with primary steam
Mouth 21 is connected to, and working medium condenser condensing water inlet 54 is connected to evaporator condensation water out 22.
The evaporation concentration system of the embodiment, the course of work are as follows:
Material liquid by feed preheater 1 enter evaporator 2 be concentrated, it is concentrated after material liquid flowed out from evaporator 2,
As final concentrate.The primary steam generated in working medium condenser 5 initially enters in evaporator 2 and provides heat to be concentrated by evaporation
Source is condensed into condensed water from evaporator 2 into the primary steam after pervaporation and flows out, enters in working medium condenser 5, with high temperature
After cooling working medium heat exchange, it is evaporated to primary steam again, is re-introduced into evaporator 2 and carries out circulating and evaporating.2 Central Plains of evaporator
The secondary steam that feed liquid is evaporated is flowed out from evaporator 2, is entered in working medium evaporator 3, for being heated to working medium, two
The condensed water of secondary steam generation is entered in feed preheater 1, is preheated to material liquid after flowing out in working medium evaporator 3,
Secondary steam condensed water from feed preheater 1 come out after, as condensed water elimination.
Low temperature liquid working medium enters in working medium evaporator 3, exchanges heat with high-temperature steam, the low temperature in working medium evaporator 3
Liquid refrigerant flashes to gaseous form by Secondary-steam heating, and gaseous working medium enters in compressor 4, is compressed into high pressure gaseous
Working medium, high pressure gaseous working medium enter in working medium condenser 5, exchange heat with primary steam condensed water, and gaseous working medium is cooled to height
Liquid refrigerant is pressed, enters in working medium evaporator 3 recycled later.
As shown in Fig. 2, on the basis of the above embodiments, present invention also provides another embodiment, in the embodiment
Evaporation concentration system include at least two evaporators 2, at least two evaporators 2 are sequentially connected, the first evaporator 26 and raw material
Preheater 1 is connected to, and last evaporator 27 is connected to working medium evaporator 3；Next evaporator connects the secondary steam of a upper evaporator
Outlet；The condensed water discharge outlet of first evaporator 26 is connect with working medium condenser 5, the condensed water discharge of non-first evaporator 26
Mouth is connected to feed preheater 1.
Include more school vaporising devices in the embodiment, that is, includes at least two evaporators 2, above-mentioned at least two evaporator 2
It is sequentially connected, the evaporator in next school carries out heating concentration using the secondary steam that the evaporator in a upper school is discharged, more sufficiently
Secondary steam is utilized, and further improve concentrated effect.Except the first evaporator 26 being connected to feed preheater 1 with
Outside, i.e., in addition to a school evaporator, the condensed water of remaining evaporator is emitted into feed preheater 1, for being preheated for material liquid,
It is discharged after condensed water heat release from feed preheater 1, so that the thermal energy of condensed water is utilized, the energy saving mesh further realized
's.
In the embodiment, the first evaporator 26 is connected to feed preheater 1, is concentrated using primary steam, later
Evaporator is then concentrated using the secondary steam that the evaporator in a upper school generates, the last one evaporator i.e. last evaporator
27, that is, the evaporator 2 being connected to working medium evaporator 3, the secondary steam of generation be transferred to working medium evaporator 3, for work
Matter heating.The heat of each section generation is utilized in the embodiment, so that energy-saving effect is preferable.
As shown in Fig. 2, evaporation concentration system includes two evaporators 2 in a specific embodiment.In the embodiment,
It is concentrated using two evaporators 2, concentrated effect both can be improved, improved energy utilization rate, evaporation concentration system can also be made
Device need not be excessive.
With continued reference to FIG. 2, being provided with throttling between working medium evaporator 3 and working medium condenser 5 in further embodiment
Valve 6.
In the embodiment, gaseous working medium cools down after working medium condenser 5 is cooled to high-pressure liquid working medium through throttle valve 6
Decompression, enters back into working medium evaporator 3 and is recycled.
In an alternate embodiment of the invention, the type of material liquid is unlimited, can be the acid solution of chloride containing iron, or contain chlorine
Change ferrous acid solution, or can also be the acid solution of containing copper chloride.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (7)
1. a kind of evaporation concentration system, which is characterized in that including raw material liquid treating system and working medium heat-exchange system, the material liquid
Processing system includes evaporator；The working medium heat-exchange system is cold including passing sequentially through working medium pipeline connection working medium evaporator and working medium
Condenser, in which:
The working medium condenser is connected to the evaporator by primary steam pipeline, and the working medium evaporator passes through with evaporator
The connection of secondary steam pipeline；
The evaporator is used for the primary steam enrichment materials liquid provided using the working medium condenser；The working medium evaporator is used
In the Secondary-steam heating working medium using evaporator discharge.
2. evaporation concentration system as described in claim 1, which is characterized in that the working medium heat-exchange system further includes compressor,
The working medium evaporator, compressor and working medium condenser are connected to by working medium pipeline head and the tail, and the compressor is used for working medium pressure
Shorten high temperature and pressure working medium into.
3. evaporation concentration system as described in claim 1, which is characterized in that the raw material liquid treating system further includes passing through original
The feed preheater that feed liquid pipeline is connected to the evaporator；The working medium evaporator also passes through condensation with the feed preheater
Waterpipe connection, the feed preheater are used for the condensed water preheating material liquid using working medium evaporator discharge.
4. evaporation concentration system as claimed in claim 3, which is characterized in that including at least two evaporators, described at least two
A evaporator is sequentially connected, and the first evaporator is connected to the feed preheater, and last evaporator is connected to working medium evaporator；
Next evaporator connects the secondary steam outlet of a upper evaporator；
The condensed water discharge outlet of first evaporator is connect with the working medium condenser, the condensed water discharge of non-first evaporator
Mouth is connected to the feed preheater.
5. evaporation concentration system as claimed in claim 4, which is characterized in that including two evaporators.
6. evaporation concentration system as described in claim 1, which is characterized in that the working medium evaporator and the working medium condenser
Between be provided with throttle valve.
7. evaporation concentration system as described in claim 1, which is characterized in that the material liquid include chloride containing iron acid solution,
Acid solution, the acid solution of containing copper chloride of chloride containing ferrous iron.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820594104.3U CN208809491U (en) | 2018-04-24 | 2018-04-24 | A kind of evaporation concentration system |
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| CN201820594104.3U CN208809491U (en) | 2018-04-24 | 2018-04-24 | A kind of evaporation concentration system |
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| CN208809491U true CN208809491U (en) | 2019-05-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956225A (en) * | 2022-05-06 | 2022-08-30 | 南京工业大学 | Solar energy and natural evaporation based salt-containing wastewater treatment system and method |
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2018
- 2018-04-24 CN CN201820594104.3U patent/CN208809491U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956225A (en) * | 2022-05-06 | 2022-08-30 | 南京工业大学 | Solar energy and natural evaporation based salt-containing wastewater treatment system and method |
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