CN110436548A - A kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission - Google Patents
A kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission Download PDFInfo
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- CN110436548A CN110436548A CN201910839340.6A CN201910839340A CN110436548A CN 110436548 A CN110436548 A CN 110436548A CN 201910839340 A CN201910839340 A CN 201910839340A CN 110436548 A CN110436548 A CN 110436548A
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- separator
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
Abstract
The invention discloses a kind of complete processing equipments of high-salt wastewater vaporation-type zero-emission, including fixed gas cooler, primary separator, second-stage separator, level-one vapour compression machine and second steam compressor, the side of the fixed gas cooler is provided with preheater, the outlet of the fixed gas cooler and the entrance of preheater connect, the other side of the preheater is provided with primary heater, the outlet of the preheater and the entrance of primary heater connect, the other side of the primary heater is provided with primary separator, the outlet of the primary heater and the entrance of primary separator connect, the other side of the primary separator is provided with secondary heater.The present invention passes through setting primary separator, second-stage separator, level-one vapour compression machine and second steam compressor, solves existing higher boiling, the problem that fresh steam consumption is big, energy consumption is high in the more demanding material concentration and evaporation concentration process of thermal sensitivity, cocnentration factor, product is rotten.
Description
Technical field
The present invention relates to evaporation concentration technique field, specially a kind of complete processing dress of high-salt wastewater vaporation-type zero-emission
It is standby.
Background technique
In recent years because of the urgent need of energy-saving and emission-reduction, simple tradition multiple-effect evaporation has been not suitable with this demand, at the same time MVR
Evaporation concentration technique is widely used in the world.Existing single-action MVR evaporation concentration technique is limited to steam
The temperature rise of the technological limit of vapour compressor, single compressor can only be within 25 DEG C, still, for higher boiling, thermal sensitivity, concentration
Than more demanding material situation, currently, existing single-action MVR working method and simple multiple-effect evaporation, which are no longer satisfied, to be needed
It wants, often faces the problems such as compressor temperature rise is insufficient, evaporating temperature high product is rotten, energy consumption is high, it is therefore necessary to existing skill
Art improves, to solve the above problems.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission,
Solve existing higher boiling, in the more demanding material concentration and evaporation concentration process of thermal sensitivity, cocnentration factor fresh steam consumption it is big,
The problem that energy consumption is high, product is rotten.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of complete place of high-salt wastewater vaporation-type zero-emission
Reason equipment, including fixed gas cooler, primary separator, second-stage separator, level-one vapour compression machine and second steam compressor,
The side of the fixed gas cooler is provided with preheater, and the outlet of the fixed gas cooler and the entrance of preheater connect,
The other side of the preheater is provided with primary heater, and the outlet of the preheater and the entrance of primary heater connect, institute
The other side for stating primary heater is provided with primary separator, and the outlet of the primary heater and the entrance of primary separator connect
It connects, the other side of the primary separator is provided with secondary heater, the outlet of the primary separator and secondary heater
Entrance connection, the other side of the secondary heater are provided with second-stage separator, the outlet of the secondary heater and two fractions
Entrance connection from device, the other side of the second-stage separator are provided with solid-liquid separating machine, the outlet of the second-stage separator with
The entrance of solid-liquid separating machine connects, the primary heater, primary separator, secondary heater and second-stage separator top set
Be equipped with braced frame, the braced frame upper end be fixed with level-one vapour compression machine, second steam compressor and and vacuum equipment,
The outlet of the entrance and second-stage separator of the second steam compressor connects, the outlet and level-one of the second steam compressor
The entrance of vapour compression machine connects, and the outlet of the level-one vapour compression machine is heated with the entrance of primary heater and second level respectively
The entrance of device connects, and the outlet of the primary heater and secondary heater is connect with the entrance of preheater, two fraction
Outlet from device is connect with the entrance of fixed gas cooler, and the outlet of the fixed gas cooler and the entrance of vacuum equipment connect
It connects.
Preferably, the evaporating pressure of the second-stage separator is lower than the evaporating pressure of primary separator, the second-order separation
The secondary steam temperature that device generates is lower than the secondary steam temperature that primary separator generates.
Preferably, vapor (steam) temperature and pressure that the steam after the second steam compressor compresses and primary separator generate
Unanimously, the inlet temperature of the level-one vapour compression machine goes out with the vapor (steam) temperature and primary separator of second steam compressor outlet
The secondary steam temperature of mouth is consistent.
Preferably, the steam inlet end of the primary heater and the steam inlet end of secondary heater are respectively arranged with
One throttle valve and second throttle.
Preferably, the inside of the primary separator and second-stage separator is provided with wire mesh demister.
Preferably, the vacuum equipment is Hydraulic Circulation vacuum pump.
(3) beneficial effect
The present invention provides a kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission, have it is following the utility model has the advantages that
(1) present invention compresses the steam of second-stage separator by second steam compressor, can be second-stage separator
Pressure reduced, reduce the evaporating temperature of second-stage separator, guarantee that material is evaporated at low temperature, effectively prevent object
Expect that thermal sensitivity is destroyed；
(2) vapor (steam) temperature raising is reached 30-50 DEG C by two second compressions by the present invention, effectively increases steam and material
Heat transfer temperature difference allows high boiling material in secondary heater to carry out the concentration of high magnification numbe；
(3) present invention is combined using compressor vapor recompression with double-effect evaporation, solves object in Multi-effect Evaporation Processes
Material temperature spends high problem；By compressor vapor recompression, recovery section steam gasification latent heat reduces the use of fresh steam
Amount；
(4) present invention flexibly can effectively adjust the steam flow of primary heater and secondary heater, thus control two
The evaporation capacity of effect；
(5) second steam compressor of the present invention is small flow, and low temperature compression, level-one vapour compression machine is big flow, high temperature
Compression, than common MVR partial pressure method, (level-one vapour compression machine is big flow, low temperature to the compressor cost of investment of this processing method
Compression, another grade of vapour compression machine is small flow, high temperature compressed) processing method compression cost of investment it is lower.
Detailed description of the invention
Fig. 1 is overall diagram of the invention；
Fig. 2 is flow diagram of the invention；
Fig. 3 is the structure chart of primary separator of the present invention.
Appended drawing reference in figure are as follows: 1, fixed gas cooler；2, preheater；3, primary heater；4, primary separator；5, two
Grade heater；6, second-stage separator；7, solid-liquid separating machine；8, level-one vapour compression machine；9, second steam compressor；10, it supports
Frame；11, vacuum equipment；12, first throttle valve；13, second throttle；14, wire mesh demister.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1-3, the present invention provides a kind of technical solution: a kind of complete processing dress of high-salt wastewater vaporation-type zero-emission
It is standby, including fixed gas cooler 1, primary separator 4, second-stage separator 6, level-one vapour compression machine 8 and second steam compressor
9, the side of fixed gas cooler 1 is provided with preheater 2, and the outlet of fixed gas cooler 1 is connect with the entrance of preheater 2, in advance
The other side of hot device 2 is provided with primary heater 3, and the outlet of preheater 2 is connect with the entrance of primary heater 3, level-one heating
The other side of device 3 is provided with primary separator 4, and the outlet of primary heater 3 is connect with the entrance of primary separator 4, a fraction
The other side from device 4 is provided with secondary heater 5, and the outlet of primary separator 4 is connect with the entrance of secondary heater 5, second level
The other side of heater 5 is provided with second-stage separator 6, and the outlet of secondary heater 5 is connect with the entrance of second-stage separator 6, and two
The other side of grade separator 6 is provided with solid-liquid separating machine 7, and the outlet of second-stage separator 6 is connect with the entrance of solid-liquid separating machine 7,
Primary heater 3, primary separator 4, secondary heater 5 and second-stage separator 6 top be provided with braced frame 10, support frame
10 upper end of frame is fixed with level-one vapour compression machine 8, second steam compressor 9 and vacuum equipment 11, and second steam compressor 9 enters
Mouth is connect with the outlet of second-stage separator 6, and the outlet of second steam compressor 9 is connect with the entrance of level-one vapour compression machine 8, and one
The outlet of grade vapour compression machine 8 is connect with the entrance of the entrance of primary heater 3 and secondary heater 5 respectively, primary heater 3
It is connect with the entrance of preheater 2 with the outlet of secondary heater 5, the outlet of second-stage separator 6 and entering for fixed gas cooler 1
Mouth connection, the outlet of fixed gas cooler 1 is connect with the entrance of vacuum equipment 11.
Further, the evaporating pressure of second-stage separator 6 is lower than the evaporating pressure of primary separator 4, and second-stage separator 6 generates
Secondary steam temperature be lower than primary separator 4 generate secondary steam temperature, guarantee material be evaporated at low temperature, effectively
Avoid the destruction of material thermal sensitivity.
Further, vapor (steam) temperature and pressure one that the compressed steam of second steam compressor 9 and primary separator 4 generate
It causes, the vapor (steam) temperature and primary separator 4 that the inlet temperature and second steam compressor 9 of level-one vapour compression machine 8 export export
Secondary steam temperature it is consistent.
Further, the steam inlet end of primary heater 3 and the steam inlet end of secondary heater 5 are respectively arranged with first
Throttle valve 12 and second throttle 13 flexibly can effectively adjust the steam flow of primary heater 3 and secondary heater 5, from
And control the evaporation capacity of two effects.
Further, the inside of primary separator 4 and second-stage separator 6 is provided with wire mesh demister 14, wire mesh demister
14 can carry out foam removal to the gas in uphill process containing mist after steam separation, make mist is biggish to condense under water droplet
It falls, realizes further steam separation.
Further, vacuum equipment 11 is Hydraulic Circulation vacuum pump, and vacuum equipment 11 is for adjusting 1 vacuum of fixed gas cooler
Degree.
Working principle；It is carried out in use, material first passes through the fixed gas that fixed gas cooler 1 and second-stage separator 6 are discharged
Heat exchange, recovery section heat；Then after cooling cold by preheater 2 and primary heater 3,5 compressed steam of secondary heater
Condensate exchanges heat, and further recycles heat；The material temperature of temperature of charge after exchanging heat twice close to primary heater 3
Degree, then into primary heater 3, material enters primary separator 4 after the heating of primary heater 3 and carries out vapour-liquid point
From, after material cocnentration factor reaches setting value, is heated into secondary heater 5 and separated using second-stage separator 6, material
When concentration reaches the discharge concentration of setting, it is discharged by 6 products export of second-stage separator；It enters solid-liquid separating machine 7 and carries out solid-liquid
Separation, obtains product, and isolated liquid, which returns to secondary heater 5, to be continued to heat, while the separation generation of second-stage separator 6 is secondary
Steam enters back into level-one vapour compression machine 8 and divides with primary separator 4 after the wire mesh demister 14 of second-stage separator 6 is handled
Both vapor compression is carried out by level-one vapour compression machine 8 after secondary steam mixing from generation, improves temperature, some vapor after compression
3 steam inlet of primary heater is entered, as 3 heat source of primary heater, some vapor enters secondary heater 5, as
5 heat source of secondary heater, specifically, after the secondary steam that second-stage separator 6 generates is compressed by second steam compressor 9, temperature
Degree, pressure rise, and the volume of steam becomes smaller, generated by the compressed secondary steam of second steam compressor 9 with primary separator 4
Secondary steam enter back into level-one vapour compression machine 8, after making second-compressed, steam enters primary heater 3, secondary heater 5
It exchanges heat, vapor (steam) temperature raising is reached 30-50 DEG C by two second compressions, improves the heat transfer temperature difference of steam and material, so that
High boiler material after primary concentration into secondary concentration can carry out the concentration of high magnification numbe, meanwhile, into primary heater 3
Flow control is carried out by steam measurement device and steam flow throttle valve with the steam of secondary heater 5.
It can to sum up obtain, the present invention passes through setting primary separator 4, second-stage separator 6, level-one vapour compression machine 8 and second level
Vapour compression machine 9 realizes that compressor vapor recompression is combined with double-effect evaporation, solves existing technology Multi-effect Evaporation Processes
Middle temperature of charge is excessively high, problem apt to deteriorate, and by compressor vapor recompression, recovery section steam gasification latent heat is reduced
The usage amount of fresh steam, solves the problems, such as that the usage amount of the fresh steam of existing technology is big.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission, including fixed gas cooler (1), primary separator (4),
Second-stage separator (6), level-one vapour compression machine (8) and second steam compressor (9), it is characterised in that: the fixed gas is cooling
The side of device (1) is provided with preheater (2), and the outlet of the fixed gas cooler (1) is connect with the entrance of preheater (2), institute
The other side for stating preheater (2) is provided with primary heater (3), the outlet of the preheater (2) and entering for primary heater (3)
Mouthful connection, the other side of the primary heater (3) is provided with primary separator (4), the outlet of the primary heater (3) with
The entrance of primary separator (4) connects, and the other side of the primary separator (4) is provided with secondary heater (5), the level-one
The outlet of separator (4) is connect with the entrance of secondary heater (5), and the other side of the secondary heater (5) is provided with second level
The outlet of separator (6), the secondary heater (5) is connect with the entrance of second-stage separator (6), the second-stage separator (6)
The other side be provided with solid-liquid separating machine (7), the outlet of the second-stage separator (6) is connect with the entrance of solid-liquid separating machine (7),
The primary heater (3), primary separator (4), secondary heater (5) and second-stage separator (6) top be provided with support
Frame (10), braced frame (10) upper end are fixed with level-one vapour compression machine (8), second steam compressor (9) and vacuum
The entrance of equipment (11), the second steam compressor (9) is connect with the outlet of second-stage separator (6), the second steam pressure
The outlet of contracting machine (9) is connect with the entrance of level-one vapour compression machine (8), the outlet of the level-one vapour compression machine (8) respectively with
The entrance of primary heater (3) is connected with the entrance of secondary heater (5), the primary heater (3) and secondary heater (5)
Outlet connect with the entrance of preheater (2), the entrance of the outlet of the second-stage separator (6) and fixed gas cooler (1)
Connection, the outlet of the fixed gas cooler (1) is connect with the entrance of vacuum equipment (11).
2. a kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission according to claim 1, it is characterised in that: described
The evaporating pressure of second-stage separator (6) is lower than the evaporating pressure of primary separator (4), the second-stage separator (6) generate two
Secondary vapor (steam) temperature is lower than the secondary steam temperature that primary separator (4) generate.
3. a kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission according to claim 1, it is characterised in that: described
Second steam compressor (9) compressed steam is consistent with vapor (steam) temperature and pressure that primary separator (4) generates, the level-one
The vapor (steam) temperature and primary separator (4) outlet of the inlet temperature of vapour compression machine (8) and second steam compressor (9) outlet
Secondary steam temperature is consistent.
4. a kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission according to claim 1, it is characterised in that: described
The steam inlet end of primary heater (3) and the steam inlet end of secondary heater (5) are respectively arranged with first throttle valve (12)
With second throttle (13).
5. a kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission according to claim 1, it is characterised in that: described
The inside of primary separator (4) and second-stage separator (6) is provided with wire mesh demister (14).
6. a kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission according to claim 1, it is characterised in that: described
Vacuum equipment (11) is Hydraulic Circulation vacuum pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910839340.6A CN110436548A (en) | 2019-09-05 | 2019-09-05 | A kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission |
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| CN201910839340.6A CN110436548A (en) | 2019-09-05 | 2019-09-05 | A kind of complete processing equipment of high-salt wastewater vaporation-type zero-emission |
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| CN109279673A (en) * | 2018-10-18 | 2019-01-29 | 国家能源投资集团有限责任公司 | The processing method and processing system of methanol-to-olefins sewage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU486046A1 (en) * | 1974-03-13 | 1975-09-30 | Всесоюзный Проектноконструкторский И Научно-Исследовательский Институт Автоматизации Пищевой Промышленности "Пищепромавтоматика" | Method for automatic control of multi-unit evaporating unit without intermediate vapor collection |
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| CN106540471A (en) * | 2016-10-28 | 2017-03-29 | 广西大学 | A kind of employing triple effect evaporation technique concentrates the method and device of biogas slurry |
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