CN208829307U - A kind of rectifying applied to high saliferous high-COD waste water, MVR vaporising device - Google Patents
A kind of rectifying applied to high saliferous high-COD waste water, MVR vaporising device Download PDFInfo
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- CN208829307U CN208829307U CN201821148372.9U CN201821148372U CN208829307U CN 208829307 U CN208829307 U CN 208829307U CN 201821148372 U CN201821148372 U CN 201821148372U CN 208829307 U CN208829307 U CN 208829307U
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Abstract
The utility model discloses a kind of rectifying applied to high saliferous high-COD waste water, MVR vaporising device, including rectifier unit and MVR vapo(u)rization system, rectifier unit is made of rectifying column, condenser, return tank, reflux pump, reboiler and the first preheater；MVR vapo(u)rization system is made of vapour compression machine, vaporization chamber, heater and the second preheater, rectifying is used in combination the utility model with MVR technique, the high problem of COD content in very good solution high-COD waste water evaporation water outlet with high salt, waste water treatment process containing a large amount of light component COD suitable for raw wastewater, compared to direct MVR evaporation technology, in rectifying section by wastewater minimisation 30% ~ 80%, light component COD in waste water can also be recycled simultaneously to use as upper raw material is produced, and reduces the inflow in MVR stage.
Description
Technical field
The utility model relates to technical field of waste water processing, specially a kind of rectifying applied to high saliferous high-COD waste water,
MVR vaporising device.
Background technique
The processing of high saliferous high-COD waste water is always the problem of sewage treatment industry, since the salt content of waste water is high, and this
Most of class high slat-containing wastewater has bio-toxicity, and traditional biochemical processing method is caused to be poorly suitable for handling such waste water,
And treatment effect is bad.
High-COD waste water processing technique with high salt used at present, such as Ozonation, electrochemical oxidation process, Fenton oxygen
Change method, Fenton-like method, evaporative crystallization method etc., mostly all in the presence of the process is more complicated, and equipment manufacturing cost is expensive, operating condition is severe
The defect at quarter.That there are oxidizing conditions is single for Ozonation and electrochemical oxidation process etc., occupation area of equipment is big, oxidation efficiency is low
The disadvantages of；And then there is the disadvantages of medicament input amount is big, sludge quantity is big in Fenton oxidation method, Fenton-like method etc.；Evaporative crystallization
Method uses multiple-effect or MVR evaporation technology, but there is evaporation water outlet COD content height, also needs additional equipment investment processing water outlet
The disadvantages of ability qualified discharge.Therefore, it develops efficient, the energy-efficient high-COD waste water processing system with high salt of one kind and method is very must
It wants.
Utility model content
The purpose of this utility model is to provide a kind of rectifying applied to high saliferous high-COD waste water, MVR vaporising device,
To solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of applied to high saliferous high-COD waste water
Rectifying, MVR vaporising device, by the waste water of rectifier unit and the high COD of the high saliferous of MVR vaporising device combination processing, the rectifying dress
It sets and is made of rectifying column, condenser, return tank, reflux pump, reboiler and the first preheater；The rectifying column upper section passes through respectively
First pipe, second pipe connection condenser and reflux pump, the condenser connect return tank, the reflux by third pipeline
Tank connects reflux pump by the 4th pipeline, and the reflux pump also passes through recovery tube and connects condensate recovery device；The rectifying column
Middle section by the 5th pipeline connect the first preheater, the rectifying column middle and lower sections by the 6th pipeline connect reboiler, it is described again
It boils device and rectifying column lower section and the first preheater is separately connected by the 7th pipeline；The MVR vapo(u)rization system is by vapour compression machine, steaming
Send out room, heater, the second preheater and forced circulation pump composition；Second preheater passes through the first preheating of the 8th pipeline connection
Device is additionally provided with evaporation water outlet recovery tube on second preheater, and second preheater connects heater by the 9th pipeline,
The heater connects vapour compression machine by the tenth pipeline, and the heater connects vaporization chamber by the 11st pipeline, described
Vapour compression machine connects vaporization chamber by the 12nd pipeline；Forced circulation pump passes through the 14th pipeline, the 11st pipeline and the tenth
Three pipelines and vaporization chamber, heater form forced-circulation evaporation, and the 8th pipeline is directly connected to the after preheating by the second preheater
On 14 pipelines.
Compared with prior art, the utility model has the beneficial effects that the utility model makes rectifying in conjunction with MVR technique
With the high problem of COD content in the high-COD waste water evaporation water outlet with high salt of, very good solution, suitable for raw wastewater containing it is a large amount of gently
The waste water treatment process of component COD, compared to direct MVR evaporation technology, in rectifying section by wastewater minimisation 30%-80%, simultaneously also
Light component COD in waste water can be recycled to use as upper raw material is produced, and reduce the inflow in MVR stage；The utility model
In the life steam heat tower reactor reboiler that rectifying section uses, is exchanged heat using tower reactor high temperature tower bottom liquid and charging, take full advantage of heat
Source, MVR stage do not consume steam, consume electric energy, more economical environmental protection, using secondary steam condensed water as the preheating of influent waste water
Heat source, handled in energy consumption lower in the cost of water per ton, equipment investment is more saved.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of technical solution: a kind of rectifying applied to high saliferous high-COD waste water,
MVR vaporising device, by the waste water of rectifier unit and the high COD of the high saliferous of MVR vaporising device combination processing, the rectifier unit is by essence
Evaporate tower 1, condenser 2, return tank 3, reflux pump 4, reboiler 5 and the first preheater 6 composition；1 upper section of rectifying column leads to respectively
It crosses first pipe 7, the connection condenser 2 of second pipe 8 and reflux pump 4, the condenser 2 and return tank is connected by third pipeline 9
3, the return tank 3 connects reflux pump 4 by the 4th pipeline 10, and the reflux pump 4 also connects condensate liquid by recovery tube 11 and returns
Receiving apparatus；1 middle section of rectifying column connects the first preheater 6 by the 5th pipeline 12, and 1 middle and lower sections of rectifying column pass through the 6th
Pipeline 13 connects reboiler 5, and the reboiler 5 is separately connected 1 lower section of rectifying column and the first preheater 6 by the 7th pipeline 14；
The MVR vapo(u)rization system is by vapour compression machine 15, vaporization chamber 16, heater 17, the second preheater 18 and 25 groups of forced circulation pump
At；Second preheater 18 connects the first preheater 6 by the 8th pipeline 19, is additionally provided with evaporation on second preheater 18
It is discharged recovery tube 20, second preheater 18 connects heater 17 by the 9th pipeline 21, and the heater 17 passes through the tenth
Pipeline 22 connects vapour compression machine 15, and the heater 17 connects vaporization chamber 16, the both vapor compression by the 11st pipeline 23
Machine 15 connects vaporization chamber 16 by the 12nd pipeline 24；Forced circulation pump 25 by the 14th pipeline 27, the 11st pipeline 23 and
13rd pipeline 26 forms forced-circulation evaporation with vaporization chamber 16, heater 17, and the 8th pipeline 19 is pre- by the second preheater 18
It is directly connected to after heat on the 14th pipeline 27.Light component COD in waste water can be recycled in rectifying section, as a raw material for production
It continues to use, while wastewater minimisation is mitigated into the load of MVR stage wastewater treatment in rectifying section.
Rectification process is that have different volatility, the i.e. steaming of each component at the same temperature using each component in waste water
This property of air pressure difference, is transferred to the light component (low-boiling-point substance) in liquid phase in gas phase, and the heavy constituent in gas phase is (high boiling
Object) it is transferred in liquid phase, to realize the purpose of separation.
MVR is the abbreviation of mechanical steam recompression technology, be using vapo(u)rization system itself generate secondary steam and its
Low-grade steam is promoted to high-grade steam source through the mechanical work of compressor by energy.It so recycles to evaporation and is
System provides thermal energy, to reduce a power-saving technology of the demand to outside resources；By distillation system in conjunction with MVR, in rectifying
Stage recycles the COD of light component in waste water with the condensate liquid of tower top, and the concentrate of tower bottom goes MVR vapo(u)rization system, can make in this way
MVR system effectiveness is higher, reduces the content of COD in MVR secondary steam, and MVR effluent index can reach the requirement of direct emission.
Working principle: the application method of the utility model the following steps are included:
A, it firstly, waste water enters the first preheater by feed pump, discharges and exchanges heat with rectifying tower bottom, essence is entered after preheating
Ta Tanei is evaporated, after waste water passes through inner-tower filling material, carries out efficient mass-and heat-transfer, light component COD goes to tower top, and light component COD is logical
Return tank is flowed into after crossing condenser condensation；
B, return tank inner condensat liquid part is continued to return in tower by reflux pump, is partially used as condensate liquid recoverable；
C, a reboiler is arranged in tower bottom, and reboiler shell side is heated using raw steam, generates thermal siphon with tower reactor in tube side
Natural Circulation, heat are transferred in tower by the circulation fluid of bottom, maintain rectifying column in vapor liquid equilibrium, tower bottom drop temperature compared with
Height, to enter MVR vapo(u)rization system after effective use heat source and charging heat exchange；
D, the bottom product that rectifying goes out enters MVR vapo(u)rization system, and MVR vapo(u)rization system uses forced-circulation evaporator, feed liquid
Enter forced-circulation evaporation system with after the heat exchange of secondary steam condensed water；
E, the secondary steam that vaporization chamber comes out continues the heat source as heater after compressor compresses improve quality；
F, secondary steam becomes condensed water after heater and wastewater heat exchange, and temperature is higher, in order to efficiently use thermal energy,
Condensed water is recycled with into after dropping to room temperature after MVR system wastewater heat exchange, the raffinate after evaporation can by crystallization processes or
As the processing of concentrate outlet.
In conclusion rectifying is used in combination the utility model with MVR technique, very good solution high-COD waste water with high salt
The high problem of COD content in evaporation water outlet, the waste water treatment process containing a large amount of light component COD suitable for raw wastewater, compared to
Direct MVR evaporation technology in rectifying section by wastewater minimisation 30%-80%, while can also recycle light component COD in waste water and be used as life
Raw material uses in production, and reduces the inflow in MVR stage；The life steam heat tower reactor that the utility model is used in rectifying section is again
Device to be boiled, using tower reactor high temperature tower bottom liquid and coming in exchange heat, takes full advantage of heat source, the MVR stage does not consume steam, consumption electric energy,
More economical environmental protection, using secondary steam condensed water as the heat source of the preheating of influent waste water, handled in energy consumption water per ton at
Lower in sheet, equipment investment is more saved.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (1)
1. a kind of rectifying applied to high saliferous high-COD waste water, MVR vaporising device, by rectifier unit in conjunction with MVR vaporising device
Handle the waste water of the high COD of high saliferous, it is characterised in that: the rectifier unit by rectifying column (1), condenser (2), return tank (3),
Reflux pump (4), reboiler (5) and the first preheater (6) composition；Rectifying column (1) upper section pass through respectively first pipe (7),
Second pipe (8) connects condenser (2) and reflux pump (4), and the condenser (2) connects return tank by third pipeline (9)
(3), the return tank (3) also passes through recovery tube (11) by the 4th pipeline (10) connection reflux pump (4), the reflux pump (4)
Connect condensate recovery device；Rectifying column (1) middle section passes through the 5th pipeline (12) connection the first preheater (6), the essence
Tower (1) middle and lower sections are evaporated by the 6th pipeline (13) connection reboiler (5), and the reboiler (5) passes through the 7th pipeline (14) difference
Connect rectifying column (1) lower section and the first preheater (6)；The MVR vapo(u)rization system by vapour compression machine (15), vaporization chamber (16),
Heater (17), the second preheater (18) and forced circulation pump (25) composition；Second preheater (18) passes through the 8th pipeline
(19) the first preheater (6) are connected, evaporation water outlet recovery tube (20) is additionally provided on second preheater (18), described second is pre-
Hot device (18) connects steam by the tenth pipeline (22) by the 9th pipeline (21) connection heater (17), the heater (17)
Compressor (15), the heater (17) pass through the 11st pipeline (23) connection vaporization chamber (16), the vapour compression machine (15)
Vaporization chamber (16) are connected by the 12nd pipeline (24)；Forced circulation pump (25) passes through the 14th pipeline (27), the 11st pipeline
(23) and the 13rd pipeline (26) and vaporization chamber (16), heater (17) form forced-circulation evaporation, and the 8th pipeline (19) passes through
It is directly connected on the 14th pipeline (27) after second preheater (18) preheating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821148372.9U CN208829307U (en) | 2018-07-19 | 2018-07-19 | A kind of rectifying applied to high saliferous high-COD waste water, MVR vaporising device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821148372.9U CN208829307U (en) | 2018-07-19 | 2018-07-19 | A kind of rectifying applied to high saliferous high-COD waste water, MVR vaporising device |
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| CN208829307U true CN208829307U (en) | 2019-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870746A (en) * | 2019-11-29 | 2021-06-01 | 中国科学院理化技术研究所 | MVR heat pump system for realizing integration of concentration, steam stripping and rectification |
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2018
- 2018-07-19 CN CN201821148372.9U patent/CN208829307U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870746A (en) * | 2019-11-29 | 2021-06-01 | 中国科学院理化技术研究所 | MVR heat pump system for realizing integration of concentration, steam stripping and rectification |
| CN112870746B (en) * | 2019-11-29 | 2022-07-22 | 中国科学院理化技术研究所 | MVR heat pump system for realizing integration of concentration, steam stripping and rectification |
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