CN108837542A - A kind of evaporation concentration system - Google Patents
A kind of evaporation concentration system Download PDFInfo
- Publication number
- CN108837542A CN108837542A CN201810687238.4A CN201810687238A CN108837542A CN 108837542 A CN108837542 A CN 108837542A CN 201810687238 A CN201810687238 A CN 201810687238A CN 108837542 A CN108837542 A CN 108837542A
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- Prior art keywords
- evaporator
- working medium
- material liquid
- evaporation concentration
- pipeline
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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
Abstract
The present invention relates to evaporation equipment technical fields, disclose a kind of evaporation concentration system, with the secondary steam generated using evaporation concentration system, improve the energy utilization rate of system.Evaporation concentration system, including：Primary steam generating system, raw material liquid treating system and working medium heat-exchange system, primary steam generating system include the high-pressure water pipeline and heating device being sequentially communicated；Raw material liquid treating system includes evaporator；Working medium heat-exchange system includes the working medium evaporator and working medium condenser being sequentially communicated by working medium pipeline, wherein：Heating device is connected to evaporator by primary steam pipeline；Working medium condenser is connected to evaporator by primary steam pipeline；Working medium evaporator is connected to evaporator by secondary steam pipeline；The evaporator being connected to heating device is vacuum evaporator.
Description
Technical field
The present invention relates to evaporation 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 and sewage treatment.
In evaporation production, the yield of secondary steam is larger, and contains a large amount of latent heat, therefore should be recycled and be used,
If secondary steam to be passed through to the heating room of another evaporator, as long as the operation pressure of the latter and solution boiling point are lower than in former evaporator
Operation pressure and boiling point, then the secondary steam being passed through remains to play heat effect, and this mode of operation is multiple-effect evaporation.
Each of multiple-effect evaporation evaporator is known as an effect.All evaporators for being passed through the steam being heated are known as first
Effect uses the evaporator of secondary steam as the heating agent of the first effect to be known as the second effect, and so on.Using the mesh of multi-effect evaporator
Be in order to save heating steam consumption.
The material being often evaporated in industrial production is aqueous solution.And saturated vapor is commonly used as heating source, and from solution
In " secondary steam " that is evaporated since pressure is low, quality is low and is unfavorable for transporting, substantially less than with gas bar part.Therefore this
Part secondary steam is directly discharged to atmosphere or cooled system condensing or uses some low-pressure steam equipment, pollute and
Energy waste.
Summary of the invention
The purpose of the embodiment of the present invention is that a kind of evaporation concentration system is provided, it is secondary to be generated using evaporation concentration system
Steam improves the energy utilization rate of system.
The embodiment of the invention provides a kind of evaporation concentration systems, including：Primary steam generating system, material liquid processing system
System and working medium heat-exchange system, the primary steam generating system includes the high-pressure water pipeline and heating device being sequentially communicated；It is described
Raw material liquid treating system includes evaporator；The working medium heat-exchange system includes the working medium evaporator being sequentially communicated by working medium pipeline
With working medium condenser, wherein：
The heating device is connected to the evaporator by primary steam pipeline；The working medium condenser and the evaporation
Device is connected to by primary steam pipeline；The working medium evaporator is connected to the evaporator by secondary steam pipeline；
The evaporator being connected to the heating device is vacuum evaporator.
In the above-described embodiments, optionally, the heating device is tracing heating, gas-operated thermal bath facility or electromagnetic heating dress
It sets.
In the above-described embodiments, optionally, first throttle valve is provided between the heating device and the evaporator.
In the above-described embodiments, optionally, the evaporator is one.
In any of the above-described embodiment, optionally, the evaporation concentration system include at least two evaporators, it is described at least
Two evaporators are sequentially communicated by secondary steam pipeline, and head end evaporator is vacuum evaporator, and are connected with the heating device
Logical, end evaporator is connected to the working medium evaporator；
The evaporator includes condensed water discharge outlet, and the condensed water discharge outlet of the head end evaporator and the working medium condense
Device connection.
In the above-described embodiments, optionally, the evaporator includes material liquid import and material liquid outlet, next steaming
The material liquid import for sending out device is connected with the outlet of the material liquid of upper one evaporator.
In the above-described embodiments, optionally, the evaporator includes material liquid import and material liquid outlet, the material liquid
Import is communicated with material liquid feed pipe, and the material liquid outlet is communicated with material liquid collection conduit.
In any of the above-described embodiment, optionally, the working medium heat-exchange system further includes compressor, the working medium evaporation
Device, the compressor and the working medium condenser are connected to by working medium pipeline head and the tail, and the compressor is for compressing working medium.
In any of the above-described embodiment, optionally, between the working medium evaporator and the working medium condenser also have with
The second throttle that the compressor is set side by side, the working medium evaporator, the second throttle and the working medium condenser
It is connected to by the working medium pipeline.
Using the evaporation concentration system of the technical program, firstly, high pressure water flow through high-pressure water pipeline and heating device at
For high-temperature high pressure water, since the evaporator being connected to heating device is vacuum evaporator, high-temperature high pressure water enters negative pressure steaming
It is gasificated as primary steam rapidly in hair device.Then, the material liquid in evaporator exchanges heat with a vapor, makes material liquid
In water evaporation formed secondary steam.Later, secondary steam enter in working medium evaporator to the liquid refrigerant of low-temp low-pressure into
Row heating becomes gaseous working medium, and gaseous working medium, which enters working medium condenser, makes the water evaporation in working medium condenser form water steaming
Gas.Continue to exchange heat with material liquid finally, the vapor enters to evaporator as the primary steam of evaporator, to material liquid
It is evaporated concentration.
In the evaporation concentration system of the technical program, does not need steam boiler and provided once for the evaporation and concentration of material liquid
Steam, directly initiating evaporation concentration system can produce primary steam, and primary steam carries out heat with material liquid and alternatively produces afterwards
Raw secondary steam is also used as the evaporation that primary steam continues material liquid by the steam that working medium heat-exchange system generates
Concentration, to effectively raise the energy utilization rate of evaporation concentration system.
Detailed description of the invention
Fig. 1 is the evaporation concentration system structural schematic diagram of one embodiment of the invention；
Fig. 2 is the evaporation concentration system structural schematic diagram of another embodiment of the present invention；
Fig. 3 is the evaporation concentration system structural schematic diagram of further embodiment of this invention.
Appended drawing reference：
1- primary steam generating system；
11- high-pressure water pipeline；
12- heating device；
13- first throttle valve；
2- raw material liquid treating system；
21- evaporator；
211- head end evaporator；
The end 212- evaporator；
213- material liquid import；
The outlet of 214- material liquid；
3- working medium heat-exchange system；
31- working medium pipeline；
32- working medium evaporator；
33- working medium condenser；
34- compressor；
35- second throttle
4- primary steam pipeline；
5- secondary steam pipeline；
6- condensed water discharge outlet；
7- material liquid feed pipe；
8- material liquid collection conduit.
Specific embodiment
For the secondary steam generated using evaporation concentration system, the energy utilization rate of system is improved, the embodiment of the present invention mentions
A kind of evaporation concentration system is supplied.To make the object, technical solutions and advantages of the present invention clearer, by the following examples to this
Invention is described in further detail.
As shown in Figure 1 to Figure 3, the embodiment of the invention provides a kind of evaporation concentration systems, including：Primary steam system
System 1, raw material liquid treating system 2 and working medium heat-exchange system 3, primary steam generating system 1 include the high-pressure water pipeline being sequentially communicated
11 and heating device 12；Raw material liquid treating system 2 includes evaporator 21；Working medium heat-exchange system 3 include by working medium pipeline 31 according to
The working medium evaporator 32 and working medium condenser 33 of secondary connection, wherein：
Heating device 12 is connected to evaporator 21 by primary steam pipeline 4；Working medium condenser 33 passes through with evaporator 21
Primary steam pipeline 4 is connected to；Working medium evaporator 32 is connected to evaporator 21 by secondary steam pipeline 5；
The evaporator 21 being connected to heating device 12 is vacuum evaporator.
Using the evaporation concentration system of the technical program, firstly, high pressure water flow is through high-pressure water pipeline 11 and heating device
12 become high-temperature high pressure water, since the evaporator 21 that be connected to heating device 12 is vacuum evaporator, high-temperature high pressure water into
Enter and is gasificated as primary steam in vacuum evaporator rapidly.Then, the material liquid in evaporator 21 is changed with a vapor
Heat makes the water evaporation in material liquid form secondary steam.Later, secondary steam enters in working medium evaporator 32 to low-temp low-pressure
Liquid refrigerant carry out heating become gaseous working medium, gaseous working medium, which enters working medium condenser 33, to be made in working medium condenser 33
Water evaporation formed vapor.Continue and original finally, the vapor enters to evaporator 21 as the primary steam of evaporator 21
Feed liquid exchanges heat, and is evaporated concentration to material liquid.
In the evaporation concentration system of the technical program, does not need steam boiler and provided once for the evaporation and concentration of material liquid
Steam, directly initiating evaporation concentration system can produce primary steam, and primary steam carries out heat with material liquid and alternatively produces afterwards
Raw secondary steam is also used as the evaporation that primary steam continues material liquid by the steam that working medium heat-exchange system 3 generates
Concentration, to effectively raise the energy utilization rate of evaporation concentration system.
As shown in Figure 1 to Figure 3, in the above-described embodiments, optionally, heating device 12 is tracing heating.
Tracing heating is that certain heat is distributed by heat tracing media, is supplemented by direct or indirect heat exchange by heat tracing
The loss of pipeline, to reach heating, heat preservation or the requirement of antifreeze normal work.Electric tracing has thermal efficiency height, energy saving, if
The advantages that meter is simple, and construction and installation are convenient, pollution-free, long service life, is able to achieve remote control and automatically controls, and its heat tracing temperature
Spend gradient it is small, heat-stable time is longer, be suitble to be used for a long time, needed for heat (electrical power) be significantly less than electric heating.Therefore,
The heating requirement of high pressure water can not only be realized, additionally it is possible to have as heating device using tracing heating in the technical scheme
The energy consumption of the reduction evaporation concentration system of effect, to reduce industrial cost.In the other optional embodiments of the present invention, heating dress
Setting 12 can also be gas-operated thermal bath facility or electromagnetic heater.
As shown in Figure 1 to Figure 3, in the above-described embodiments, optionally, is provided between heating device 12 and evaporator 21
One throttle valve 13.
It can control the amount of the high-temperature high pressure water into evaporator 21 by the way that first throttle valve 13 is arranged, also, work as and pass through
The steam that working medium condenser 33 generates is when entering to evaporator 21, can be made by first throttle valve 13 high-temperature high pressure water no longer into
Enter evaporator 21, to save the dosage of the primary steam of evaporation concentration system, reduces energy consumption.
As shown in Figure 1, in the above-described embodiments, optionally, evaporator 21 is one.Heating device 12 and evaporator 21 are logical
Cross the connection of primary steam pipeline 4；Working medium condenser 33 is connected to evaporator 21 by primary steam pipeline 4；Working medium evaporator 32
It is connected to evaporator 21 by secondary steam pipeline 5.
The evaporator 21 is vacuum evaporator, and high-temperature high pressure water, which enters in evaporator 21, is gasificated as rapidly primary steam.
Then, the material liquid in evaporator 21 exchanges heat with a vapor, and the water evaporation in material liquid is made to form secondary steam.It
Afterwards, secondary steam, which enters heat to the liquid refrigerant of low-temp low-pressure in working medium evaporator 32, becomes gaseous working medium,
Gaseous working medium, which enters working medium condenser 33, makes the water evaporation in working medium condenser 33 form vapor.Finally, the vapor is made
For evaporator 21 primary steam enter to evaporator 21 continuation exchange heat with material liquid, concentration is evaporated to material liquid.
As shown in Figures 2 and 3, in the above-described embodiments, optionally, evaporation concentration system includes at least two evaporators
21, at least two evaporators 21 are sequentially communicated by secondary steam pipeline 5, and head end evaporator 211 is vacuum evaporator, and with add
Thermal 12 is connected to, and end evaporator 212 is connected to working medium evaporator 32；
Evaporator 21 includes condensed water discharge outlet 6, the condensed water discharge outlet 6 and working medium condenser 33 of head end evaporator 211
Connection.
By the way that the condensed water of head end evaporator 211 is flowed into working medium condenser 33 by condensed water discharge outlet 6, can not have to
Increase additional water replanishing device for working medium condenser 33, so that evaporation concentration system be made to be simplified, improves the utilization of water
Rate.
As shown in Fig. 2, in the above-described embodiments, optionally, evaporator 21 includes that material liquid import 213 and material liquid export
214, the material liquid import 213 of next evaporator is connected with the material liquid of upper evaporator outlet 214.It in this way can be according to need
Material liquid is carried out repeatedly being concentrated by evaporation to obtain the higher concentrate of concentration using secondary steam.
As shown in figure 3, in the above-described embodiments, optionally, evaporator 21 includes that material liquid import 213 and material liquid export
214, material liquid import 213 is communicated with material liquid feed pipe 7, and material liquid outlet 214 is communicated with material liquid collection conduit 8.
Material liquid can be each led into each evaporator 21 in this way, then timely collect the raw material after being concentrated by evaporation again
Liquid, to improve the evaporation and concentration efficiency of material liquid on the basis of improving the utilization rate of secondary steam.
As shown in Figure 1 to Figure 3, in any of the above-described embodiment, further, working medium heat-exchange system 3 further includes compressor
34, working medium evaporator 32, compressor 34 and working medium condenser 33 are connected to from beginning to end by working medium pipeline 31, and compressor 34 is for compressing
Working medium.
Since in the technical scheme, compressor 34 is served only for compressing working medium, therefore reduce compressor 34
Type selecting difficulty.
It, can be in working medium condenser 33 by the way that compressor 34 is arranged between working medium evaporator 32 and working medium condenser 33
The gaseous working medium of generation is compressed, to obtain the gaseous working medium of high temperature and pressure；The gaseous working medium of high temperature and pressure and working medium are cold
Water in condenser 33 carries out heat and changes to generate steam and enter to the continuation of evaporator 21 of head end to exchange heat with material liquid, to material liquid
It is evaporated concentration.With continued reference to Fig. 1 to Fig. 3, further, between working medium evaporator 32 and working medium condenser 33 also have with
The second throttle 35 that compressor 34 is set side by side, working medium evaporator 32, second throttle 35 and working medium condenser 33 pass through work
Matter pipeline 31 is connected to.In this way, the water in the gaseous working medium of high temperature and pressure and working medium condenser 33 carries out the high-pressure liquid after heat is changed
It flows back into working medium evaporator 32 and recycles again after progress decrease temperature and pressure when working medium flows through second throttle 35.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of evaporation concentration system, which is characterized in that including：Primary steam generating system, raw material liquid treating system and working medium
Heat-exchange system, the primary steam generating system include the high-pressure water pipeline and heating device being sequentially communicated；At the material liquid
Reason system includes evaporator；The working medium heat-exchange system includes that the working medium evaporator being sequentially communicated by working medium pipeline and working medium are cold
Condenser, wherein：
The heating device is connected to the evaporator by primary steam pipeline；The working medium condenser and the evaporator are logical
Cross the connection of primary steam pipeline；The working medium evaporator is connected to the evaporator by secondary steam pipeline；
The evaporator being connected to the heating device is vacuum evaporator.
2. evaporation concentration system as described in claim 1, which is characterized in that the heating device is tracing heating, combustion gas adds
Thermal or electromagnetic heater.
3. evaporation concentration system as described in claim 1, which is characterized in that set between the heating device and the evaporator
It is equipped with first throttle valve.
4. evaporation concentration system as described in claim 1, which is characterized in that the evaporator is one.
5. evaporation concentration system as described in claim 1, which is characterized in that including at least two evaporators, described at least two
A evaporator is sequentially communicated by secondary steam pipeline, and head end evaporator is vacuum evaporator, and is connected to the heating device,
End evaporator is connected to the working medium evaporator；
The evaporator includes condensed water discharge outlet, and the condensed water discharge outlet of the head end evaporator and the working medium condenser connect
It is logical.
6. evaporation concentration system as claimed in claim 5, which is characterized in that the evaporator includes material liquid import and raw material
The material liquid import of liquid outlet, next evaporator is connected with the outlet of the material liquid of upper one evaporator.
7. evaporation concentration system as claimed in claim 5, which is characterized in that the evaporator includes material liquid import and raw material
Liquid outlet, the material liquid import are communicated with material liquid feed pipe, and the material liquid outlet is communicated with material liquid collection conduit.
8. 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, the compressor and the working medium condenser are connected to by the working medium pipeline head and the tail, the compressor
For compressing working medium.
9. evaporation concentration system as claimed in claim 8, which is characterized in that the working medium evaporator and the working medium condenser
Between also there is the second throttle that is set side by side with the compressor, the working medium evaporator, the second throttle and institute
Working medium condenser is stated to be connected to by the working medium pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687238.4A CN108837542A (en) | 2018-06-28 | 2018-06-28 | A kind of evaporation concentration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687238.4A CN108837542A (en) | 2018-06-28 | 2018-06-28 | A kind of evaporation concentration system |
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| CN108837542A true CN108837542A (en) | 2018-11-20 |
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| CN201810687238.4A Pending CN108837542A (en) | 2018-06-28 | 2018-06-28 | A kind of evaporation concentration system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350983A (en) * | 2018-12-17 | 2019-02-19 | 上海新奥新能源技术有限公司 | A kind of two-stage compression heat pump double-effect evaporation concentration systems |
| CN109621480A (en) * | 2019-01-07 | 2019-04-16 | 天津乐科节能科技有限公司 | A kind of indirect type vacuum cooled decrease temperature crystalline system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350983A (en) * | 2018-12-17 | 2019-02-19 | 上海新奥新能源技术有限公司 | A kind of two-stage compression heat pump double-effect evaporation concentration systems |
| CN109350983B (en) * | 2018-12-17 | 2024-03-19 | 上海新奥新能源技术有限公司 | Double-stage compression type heat pump double-effect evaporation concentration system |
| CN109621480A (en) * | 2019-01-07 | 2019-04-16 | 天津乐科节能科技有限公司 | A kind of indirect type vacuum cooled decrease temperature crystalline system and method |
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Application publication date: 20181120 |
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