CN207203495U - Suitable for high-salt concentrated degree and the MVR crystallizing evaporators for thering is crystal to separate out - Google Patents
Suitable for high-salt concentrated degree and the MVR crystallizing evaporators for thering is crystal to separate out Download PDFInfo
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- CN207203495U CN207203495U CN201720520609.0U CN201720520609U CN207203495U CN 207203495 U CN207203495 U CN 207203495U CN 201720520609 U CN201720520609 U CN 201720520609U CN 207203495 U CN207203495 U CN 207203495U
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Abstract
Suitable for high-salt concentrated degree and the MVR crystallizing evaporators for having crystal to separate out, it is related to a kind of industrial energy saving equipment, and in particular to a kind of MVR crystallizing evaporators for being applied to high-salt concentrated degree and having crystal to separate out.First Heat Exchanger and the second heat exchanger are separately positioned in the first vaporization chamber and the second vaporization chamber, the steam inlet end of second vaporization chamber is connected in main steam range, the steam (vapor) outlet end of second vaporization chamber connects the steam inlet of the first vaporization chamber by compressor, and agitating device is provided with the first vaporization chamber and the second vaporization chamber.The vaporization chamber of traditional MVR crystallizing evaporators and heat exchanger are changed to combination type structure by the utility model by split type, i.e. heat exchanger makes equipment more compact, heat exchanger surface is exposed in large space, and crystallization and salt crust remove after being easy in evaporation chamber.This programme technological process is because there is crystalline solid to separate out therefore technological process that material boiling point rise certainly still uses first problem scheme.
Description
Technical field
It the utility model is related to a kind of industrial energy saving equipment, and in particular to one kind is applied to high-salt concentrated degree and has crystal analysis
The MVR crystallizing evaporators gone out.
Background technology
MVR evaporators are a kind of novel high-efficiency and energy-saving evaporation equipments for being mainly used in pharmaceutical industry, and the equipment is using low
Temperature is that the energy produces steam with low-pressure steam steaming technique and clean energy resource, and the water in medium is separated, and is current international advanced
Evaporation technique, be substitute conventional evaporator upgraded product.
MVR crystallizing evaporators are a kind of equipment saved very much, and its principle is secondary caused by evaporator heat exchange evaporation
Steam raises the pressure and temperature of indirect steam through vapour compression machine compression, and the heat exchanger returned again in evaporator is as heating
The energy reuses.And so on, constantly recycle, the magnitude of recruitment very little of primary steam.Therefore MVR crystallizing evaporators are used
The few operating cost of steam consumption quantity it is low, be one of energy-saving equipment best at present, but there is also some to lack for MVR crystallizing evaporators
Point：1st, there is the material that crystalline solid separates out because salt concentration is high in high-salt concentrated degree and evaporating concentration process, the elevation of boiling point is a lot,
And the compression ratio of vapour compression machine is limited, temperature rise has certain limit, thus compression after steam temperature with it is ebullioscopic
The temperature difference is very few between high salt concentration liquid, causes heat exchanger heat transfer area excessive, can not realize industrialization.Therefore MVR evaporative crystallizations
Device high salt concentration and have crystalline solid separate out material in the case of be difficult to apply.2nd, have what crystal separated out in evaporating concentration process
Material, due to easily forming crystallization and salt crust in heat exchanger heat exchange surface, influences heat exchanger biography when being contacted with evaporator heat exchanger
Thermal velocity and easily generation block pipe, plate phenomenon, therefore MVR crystallizing evaporators have crystalline solid to separate out feelings in evaporating concentration process
It can not be applied under condition.
Utility model content
The defects of the purpose of this utility model is to be directed to prior art and deficiency, there is provided one kind is applied to high-salt concentrated degree
And the MVR crystallizing evaporators for thering is crystal to separate out, it is interior because crystallization, fouling and clogging can not be normal that it solves heat exchanger heat-exchanging tube, plate
The problem of production.By the material of evaporative crystallization in pipe outer circulation, it is difficult to form crystallization and salt crust, formation can also even if having on a small quantity
Periodically using the dissolving of former low concentration liquid or artificial removal, because of crystallization or salt crust is outside pipe and heat exchanger is placed in MVR vaporization chambers
Artificial removal is convenient in large space.
To achieve the above object, the utility model is using following technical scheme：Our specific solution is：（One）
The solution of first problem：1st, technological process changes：The stoste of concentration to be evaporated is pumped into MVR evaporators first（1）Enter
Row is concentrated by evaporation, after finite concentration to be achieved（Namely the elevation of boiling point containing saline solution to a certain extent when）This high saliferous liquid pump is entered
Another evaporator（2）（Using normal pressure or negative-pressure operation）Directly use primary steam（I.e. raw steam）Make heating medium, because
High be concentrated by evaporation again to concentration with high salinity liquid of primary steam temperature reaches technological requirement.2nd, by evaporator（2）Caused two
Secondary steam is incorporated into above-mentioned MVR evaporators（1）Vapour compression machine inlet end and MVR evaporators（1）Caused by vaporization chamber
Indirect steam mixing is compressed heating, enters back into MVR evaporators（1）Heat exchanger makees heating medium secondary use again, so past
It is multiple, to reach two evaporators（1）、（2）The purpose that all utilizes of indirect steam, so solve high salinity and evaporation process
In have the material that crystal separates out because of the elevation of boiling point and the temperature difference very few the problem of can not applying MVR evaporators, while also solve steaming
Send out device（2）The problem of indirect steam reuses.（Two）Solves change and the technique stream of the planning device structure of Second Problem
Journey：1st, due to have in evaporating concentration process crystalline solid precipitation in the case of material easily heat exchanger surface formed crystallization or salt
Dirt, influences heat exchanger heat transfer speed and Yi Fa heat exchanger tubes, plate clogging, and we design following scheme：1. traditional MVR is steamed
The vaporization chamber and heat exchanger for sending out crystallizer are changed to combination type structure by split type, i.e. heat exchanger makes equipment more in evaporation chamber
Compact, heat exchanger surface is exposed in large space, and crystallization and salt crust remove after being easy to.2. will on the basis of previous step is improved
The heat exchanger of traditional MVR crystallizing evaporators is changed to away outside pipe by the medium of evaporative crystallization by walking in pipe, and heating medium is walked in pipe, this
The medium of heating is due to being that steam will not produce crystallization and salt crust in sample pipe, so as to be not in crystallization, fouling etc. in heat exchanger tube
Clogging.3. the heat exchanger of traditional MVR crystallizing evaporators is made into coiled structure heat exchanger by shell and tube or plank frame,
So due to by the material of evaporative crystallization in pipe outer circulation, it is difficult to crystallization and salt crust are formed, even if there is a small amount of formed to determine
Phase is dissolved using former low concentration liquid or artificial removal, and because of crystallization or salt crust is outside pipe and heat exchanger is placed in the big of MVR vaporization chambers
Artificial removal is convenient in space（Note：Substantially artificial removal is not needed in actual use）, so as to solve heat exchanger heat exchange easily
The problem that can not be normally produced by crystallization, fouling and clogging in pipe, plate.4. wherein the structure of coil heat exchanger can be according to difference
Physical property and production requirement be designed to a variety of structures and form, any structure and form are all by this patent protection.
5. this programme uses multigroup parallel connection, the mode of intermittently operated is run in turn, be so easy to crystallize outside Tube Sheet of Heat Exchanger and fouling it is molten
Solve or be easy to manually remove.Therefore 6. this programme technological process still uses first because there is crystalline solid to separate out material boiling point rise certainly
The technological process of individual problem scheme.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the utility model process chart.
Description of reference numerals：First vaporization chamber 1, First Heat Exchanger 2, the second vaporization chamber 3, the second heat exchanger 4, stirring are motor-driven
Power apparatus 5, vapour compression machine 6, liquid-feeding pump 7, liquid storage tank 8, agitating device 9, main steam range 10, condensation supply mains 11.
Embodiment
Referring to shown in Fig. 1-2, the technical scheme that present embodiment uses is：It is changed comprising the first vaporization chamber 1, first
Hot device 2, the second vaporization chamber 3, the second heat exchanger 4, stirring power plants 5, vapour compression machine 6, liquid-feeding pump 7, liquid storage tank 8, stir
Device 9 is mixed, the heat exchanger 4 of First Heat Exchanger 2 and second is separately positioned in the first vaporization chamber 1 and the second vaporization chamber 3, the second evaporation
The steam inlet end of room 3 is connected in main steam range 10, and the steam (vapor) outlet end of the second vaporization chamber 3 connects first by compressor 6
The steam (vapor) outlet of the steam inlet of vaporization chamber 1, the first vaporization chamber 1 and the second vaporization chamber 3 is both connected on condensation supply mains 11, is sent
Liquid pump 7 is connected between the vaporization chamber 1 of liquid storage tank 8 and first and the second vaporization chamber 3, and stirring power plants 5 are arranged on the first steaming
Send out on the vaporization chamber 3 of room 1 and second, agitating device 9 is provided with the first vaporization chamber 1 and the second vaporization chamber 3.
The described heat exchanger 4 of First Heat Exchanger 2 and second is coiled structure heat exchanger.
Described vaporization chamber and heat exchanger integral structure.
Idiographic flow of the present utility model is：The stoste of concentration to be evaporated is pumped into the first vaporization chamber 1 first to be evaporated
Concentration, after finite concentration to be achieved, that is, the elevation of boiling point containing saline solution to a certain extent when, this high saliferous liquid pump is entered into the second steaming
Room 2 is sent out, mode is pumped into and uses normal pressure or negative-pressure operation, directly make heating medium with primary steam, because of primary steam temperature
High be concentrated by evaporation again to concentration with high salinity liquid reaches technological requirement.
The vaporization chamber of traditional MVR crystallizing evaporators and heat exchanger are changed to combination type knot by the utility model by split type
Structure, i.e. heat exchanger make equipment more compact in evaporation chamber, and heat exchanger surface is exposed in large space, after being easy to crystallization and
Salt crust removes.On the basis of previous step is improved by the heat exchanger of traditional MVR crystallizing evaporators by the medium of evaporative crystallization by walking
It is changed to away in pipe outside pipe, heating medium is walked in pipe, so manages the medium of interior heating due to being that steam will not produce crystallization and salt crust,
So as to be not in the cloggings such as crystallization, fouling in heat exchanger tube.By the heat exchanger of traditional MVR crystallizing evaporators by shell and tube or
Plank frame makes coiled structure heat exchanger into, so due to by the material of evaporative crystallization in pipe outer circulation, it is difficult to formed crystallization
And salt crust, even if there is a small amount of formed can also be periodically using the dissolving of former low concentration liquid or artificial removal, because crystallization or salt crust are in pipe
Outer and heat exchanger is placed in artificial removal's convenience in the large space of MVR vaporization chambers, so as to solve heat exchanger heat-exchanging tube, plate easily
The interior problem that can not be normally produced by crystallization, fouling and clogging.Wherein the structure of coil heat exchanger can be according to different physical property
And production requirement is designed to a variety of structures and form, any structure and form are all by this patent protection.This programme
Using multigroup parallel connection, the mode of intermittently operated is run in turn, is so easy to crystallize outside Tube Sheet of Heat Exchanger and the dissolving of fouling or is easy to
It is artificial to remove.This programme technological process is because having crystalline solid to separate out material boiling point rise certainly therefore still using first problem scheme
Technological process.
It is described above, only to illustrate the technical solution of the utility model and unrestricted, those of ordinary skill in the art couple
The other modifications or equivalent substitution that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope, it all should cover among right of the present utility model.
Claims (3)
1. suitable for high-salt concentrated degree and the MVR crystallizing evaporators for thering is crystal to separate out, it is characterised in that：It includes the first vaporization chamber
(1), First Heat Exchanger (2), the second vaporization chamber (3), the second heat exchanger (4), stirring power plants (5), vapour compression machine
(6), liquid-feeding pump (7), liquid storage tank (8), agitating device (9), First Heat Exchanger (2) and the second heat exchanger (4) are separately positioned on
In one vaporization chamber (1) and the second vaporization chamber (3), the steam inlet end of the second vaporization chamber (3) is connected in main steam range (10), the
The steam (vapor) outlet end of two vaporization chambers (3) connects the steam inlet of the first vaporization chamber (1), the first vaporization chamber (1) by compressor (6)
Be both connected to the steam (vapor) outlet of the second vaporization chamber (3) in condensation supply mains (11), liquid-feeding pump (7) be connected to liquid storage tank (8) and
Between first vaporization chamber (1) and the second vaporization chamber (3), stirring power plants (5) are arranged on the first vaporization chamber (1) and second and steamed
Send out on room (3), agitating device (9) is provided with the first vaporization chamber (1) and the second vaporization chamber (3).
2. according to claim 1 exist suitable for high-salt concentrated degree and the MVR crystallizing evaporators for having crystal to separate out, its feature
In：Described First Heat Exchanger (2) and the second heat exchanger (4) are coiled structure heat exchanger.
3. according to claim 1 exist suitable for high-salt concentrated degree and the MVR crystallizing evaporators for having crystal to separate out, its feature
In：Described vaporization chamber and heat exchanger integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720520609.0U CN207203495U (en) | 2017-05-11 | 2017-05-11 | Suitable for high-salt concentrated degree and the MVR crystallizing evaporators for thering is crystal to separate out |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720520609.0U CN207203495U (en) | 2017-05-11 | 2017-05-11 | Suitable for high-salt concentrated degree and the MVR crystallizing evaporators for thering is crystal to separate out |
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| Publication Number | Publication Date |
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| CN207203495U true CN207203495U (en) | 2018-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964169A (en) * | 2017-05-11 | 2017-07-21 | 刘向东 | Suitable for high-salt concentrated degree and have crystal separate out MVR crystallizing evaporators and its production technology |
-
2017
- 2017-05-11 CN CN201720520609.0U patent/CN207203495U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964169A (en) * | 2017-05-11 | 2017-07-21 | 刘向东 | Suitable for high-salt concentrated degree and have crystal separate out MVR crystallizing evaporators and its production technology |
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