CN208372514U - A kind of compact micro-pressure-difference push in circulating and evaporating concentration and crystallization apparatus - Google Patents
A kind of compact micro-pressure-difference push in circulating and evaporating concentration and crystallization apparatus Download PDFInfo
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- CN208372514U CN208372514U CN201820810360.1U CN201820810360U CN208372514U CN 208372514 U CN208372514 U CN 208372514U CN 201820810360 U CN201820810360 U CN 201820810360U CN 208372514 U CN208372514 U CN 208372514U
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- evaporation crystallizer
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Abstract
The utility model discloses a kind of compact micro-pressure-differences to push interior circulating and evaporating concentration and crystallization apparatus, interior circulation evaporation crystallizer is pushed including compact micro-pressure-difference, compact micro-pressure-difference pushes interior circulation evaporation crystallizer to have the heat exchange short tube arranged vertically, heat exchange short tube is annularly arranged, guide shell is arranged in ring center, it is provided with stirring in guide shell and promotes paddle, preheater and feed pump are provided on the feeding pipe of circulation evaporation crystallizer in compact micro-pressure-difference promotion, compact micro-pressure-difference pushes the discharge nozzle road setting discharging pump of interior circulation evaporation crystallizer, compact micro-pressure-difference pushes interior circulation evaporation crystallizer to be configured with steam pipework, steam recycle compressor is disposed on the steam pipework, compact micro-pressure-difference pushes and is provided with fixed gas discharge pipe on interior circulation evaporation crystallizer, vacuum pump is provided on fixed gas discharge pipe；The utility model has the advantages that structure novel, greatly improves heat transfer coefficient, equipment investment cost, convenient transportation are saved, system overall heat consumption is effectively reduced.
Description
Technical field
The utility model relates to a kind of evaporation and concentration and crystallization apparatus, in particular to a kind of compact micro-pressure-difference pushes interior circulation
Evaporation and concentration and crystallization apparatus.
Background technique
Under the overall situation that Environmental Protection in China is administered as strict as possible, such as chemical industry, medicine, papermaking, intermetallic composite coating, plating etc. industry
All suffer from the problem of waste water can not discharge, it is necessary to just can be carried out discharge after qualified to existing wastewater treatment.And these industries produce
Raw waste water suffers from identical feature: high containing salinity, high containing organic matter.
Currently, the domestic processing back segment for high slat-containing wastewater is usually all using the processing being concentrated by evaporation with evaporative crystallization
Technology separates the salinity in waste water.Evaporation concentration technique usually has falling film evaporation concentration, Natural Circulation to be concentrated by evaporation
Three kinds of technologies are concentrated with forced-circulation evaporation；Evaporative crystallization technique usually has the prevailing technologies route such as forced circulation, OSLO, DTB
And technological equipment.
In these types of technology, falling film evaporation, Natural Circulation evaporation are only used for that waste water is concentrated, it is impossible to be used in knot
Crystalline substance, and Natural Circulation, because flow velocity is low, liquid flowing is laminar flow, causes the coefficient of heat transfer low, so that heat exchange area is big, equipment initial stage
It puts into higher.
Commonly used in crystallization, all there is mounting height height in these types of process equipment for tri- kinds of forced circulation, OSLO, DTB technologies,
Energy consumption is high, and equipment initial stage puts into big common drawback, and these three types of equipment are both needed to occupy biggish solid space, difficult in maintenance,
Safety is poor, can ignore for disadvantage in the chemical products production of high added value, be used for wastewater treatment then its shortcoming
Clearly.
Utility model content
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, to provide a kind of completely new compact micro-
Pressure difference pushes interior circulating and evaporating concentration and crystallization apparatus.
To achieve the goals above, the measure that the utility model is taken:
A kind of compact micro-pressure-difference push in circulating and evaporating concentration and crystallization apparatus, including compact micro-pressure-difference push in circulation steam
Crystallizer is sent out, it includes the cylinder being vertically arranged, the setting of cylinder upper end that the compact micro-pressure-difference, which pushes interior circulation evaporation crystallizer,
There is end socket, fixed gas outlet, condensation water out, feed inlet, discharge port, steam inlet and steam (vapor) outlet, cylinder are provided on cylinder
Internal side is provided with tube sheet, and the lower section of tube sheet is arranged in heat exchange short tube, and compact micro-pressure-difference pushes interior circulation evaporation crystallizer to have
The heat exchange short tube arranged vertically, heat exchange short tube annularly arrange that guide shell is arranged in ring center, are provided with stirring in guide shell and push away
Into paddle, preheater and feed pump, compact minute-pressure are provided on the feeding pipe of circulation evaporation crystallizer in compact micro-pressure-difference promotion
The discharge nozzle road setting discharging pump of circulation evaporation crystallizer, compact micro-pressure-difference push interior circulation evaporation crystallizer to match in difference promotion
It is equipped with steam pipework, steam recycle compressor is disposed on the steam pipework, compact micro-pressure-difference pushes interior circulating and evaporating crystallization
It is provided with fixed gas discharge pipe on device, is provided with vacuum pump on fixed gas discharge pipe；
The preheater pushes the tube side of interior circulation evaporation crystallizer to be connected with compact micro-pressure-difference, and compact micro-pressure-difference pushes away
Condensate pump is provided in dynamic on the shell side of circulation evaporation crystallizer, condensate pump, which is realized, pushes interior circulation to steam compact micro-pressure-difference
It sends out the secondary steam condensate formed in the heat exchange short tube of crystallizer and is passed through preheater as the heat source preheated to high-salt wastewater；
Vertical direction is provided with several observation visors on the cylinder lateral wall；
Horizontally disposed demister is provided in the vapor phase space of the top of the heat exchange short tube；
The outside that the stirring promotes the motor of paddle that cylinder is arranged in, stirring promote the blade of paddle to extend into cylinder.
The utility model has the beneficial effects that practical, production cost is low, and structure novel is mainly reflected in: 1, cancelling material and follow
Ring water pump promotes paddle to material stirring and to promote using stirring, and cooperation heat exchange short tube is realized big flow circular flow, improved
Exchange heat velocity in pipes, greatly improves heat transfer coefficient, saves equipment investment cost；
2, paddle is promoted using stirring, realizes that the big flow micro-pressure-difference of material promotes circular flow, and then realize that the small temperature difference passes
Heat, small different transfer of heat reduce obviously the power consumption of compressor, and the power consumption that stirring promotes the power consumption of paddle to compare conventional recycle pump reduces
Obviously, total operating cost is significantly reduced；
3, paddle is promoted using stirring, eliminates circulating pump, device bottom only reserves the size of arrangement motor, without examining
Consider the net positive suction head problem of pump, equipment total height substantially reduces, and heat exchanger tube uses short tube, more reduces equipment total height, saves
About equipment gross investment, and can easily realize the integral movable type operation of equipment, convenient transportation；
4, big flow micro-pressure-difference promotes circulation inside equipment, and equipment inner fluid speed is high, and crystal salt is originally set without deposition risk
It is standby to adequately achieve evaporation and concentration and one machine of evaporative crystallization is general；
5, using steam recompression technology, system energy consumption is reduced, it will be using itself after mechanical compressor improves temperature
The secondary steam generated is evaporated as the main heat source being concentrated by evaporation, and realizes recycling for steam, system is effectively reduced
Overall heat consumption.
Detailed description of the invention
Fig. 1, the external structure schematic diagram of the utility model.
Fig. 2, the inner barrel structural schematic diagram of the utility model.
Specific embodiment
A kind of compact micro-pressure-difference push in circulating and evaporating concentration and crystallization apparatus, including compact micro-pressure-difference push in circulation steam
Crystallizer 1 is sent out, it includes the cylinder 1-1, cylinder 1-1 being vertically arranged that the compact micro-pressure-difference, which pushes interior circulation evaporation crystallizer 1,
Upper end is provided with end socket 1-14, and fixed gas outlet 1-4, condensation water out 1-5, feed inlet 1-6, discharging are provided on cylinder 1-1
Mouth 1-7, steam inlet 1-10 and steam (vapor) outlet 1-13, the inside cylinder 1-1 are provided with tube sheet 1-3, and heat exchange short tube 1-11 setting exists
The lower section of tube sheet 1-3, compact micro-pressure-difference push interior circulation evaporation crystallizer 1 to have the heat exchange short tube 1-11 arranged vertically, heat exchange
Short tube 1-11 annularly arranges that guide shell 1-9 is arranged in ring center, and stirring is provided in guide shell 1-9 and promotes paddle 1-8, compact
Preheater 8 and feed pump 4 are provided in micro-pressure-difference promotion on the feeding pipe of circulation evaporation crystallizer 1, compact micro-pressure-difference pushes
The discharge nozzle road setting discharging pump 6 of interior circulation evaporation crystallizer 1, compact micro-pressure-difference push interior circulation evaporation crystallizer 1 to configure
There is steam pipework, steam recycle compressor 2 is disposed on the steam pipework, compact micro-pressure-difference pushes interior circulation evaporation crystallizer
It is provided with fixed gas discharge pipe on 1, vacuum pump 7 is provided on fixed gas discharge pipe.
The preheater 8 pushes the tube side of interior circulation evaporation crystallizer 1 to be connected with compact micro-pressure-difference, compact micro-pressure-difference
Condensate pump 5 is provided in pushing on the shell side of circulation evaporation crystallizer 1, condensate pump 5 is realized will be in the promotion of compact micro-pressure-difference
The secondary steam condensate formed in the heat exchange short tube 1-11 of circulation evaporation crystallizer 1 is passed through preheater 8 as pre- to high-salt wastewater
The heat source of heat.
Vertical direction is provided with several observation visor 1-12 on the cylinder 1-1 side wall.
Horizontally disposed demister 1-2 is provided in the vapor phase space of the top of the heat exchange short tube 1-11.
The outside that the stirring promotes the motor of paddle 1-8 that cylinder 1-1 is arranged in, stirring promote the blade of paddle 1-8 to protrude into
Into cylinder 1-1.
In order to be more clear technical solution and the advantage of the present apparatus, the present embodiment combination condensate heat recovery apparatus and steam
The recycling of recycle compressor realization haline water condensing crystallizing and high-quality crystal salt and high-quality condensed water.With traditional evaporation
Condensing crystallizing equipment compares, and reduces the height of system and device, is convenient for Operation and Maintenance, and cost of investment reduces by 45% or more, energy
Consumption reduces 50% or more, and system operation is controllable and more stable.
High-salt wastewater main component is sodium chloride, sodium sulphate etc., using saturated vapor as heat source in embodiment.
Below with reference to attached drawing, it is described in further detail.
Compact micro-pressure-difference push in circulation evaporation crystallizer 1 feeding pipe on preheater 8 is set, before preheater 8
Feed pump 4 is provided on feeding pipe, for high-salt wastewater to be pumped into preheater 8, setting discharging pump 6 in discharge nozzle road is used for
Saturated brine or the saturated brine containing crystalline solid are discharged, compact micro-pressure-difference pushes interior circulation evaporation crystallizer 1 to be equipped with stirring
Paddle 1-8 is promoted, compact micro-pressure-difference pushes interior circulation evaporation crystallizer 1 to be configured with steam pipework, and steaming is disposed on steam pipework
Vapour recycle compressor 2.Steam pipework is connect with steam steam inlet pipe is switched to circulating and evaporating crystallization in compact micro-pressure-difference promotion again
The shell side of device 1, compact micro-pressure-difference push interior circulation evaporation crystallizer 1 to also configure vacuum pump 7, are used for fixed gas outlet, and mention
For negative pressure evaporation environment.
The preheater 8 pushes the tube side of interior circulation evaporation crystallizer 1 to be connected with compact micro-pressure-difference, compact micro-pressure-difference
The high-quality secondary steam condensate generated in the shell side of circulation evaporation crystallizer 1 in pushing is passed through preheater by condensate pump 5
8, the preheating heating source as material.
Specifically, compact micro-pressure-difference push in circulation evaporation crystallizer 1 include the cylinder 1-1 being vertically arranged, on cylinder 1-1
End is provided with end socket 1-14, and fixed gas outlet 1-4, condensation water out 1-5, feed inlet 1-6, discharge port are provided on cylinder 1-1
1-7, steam inlet 1-10 and steam (vapor) outlet 1-13, the inside cylinder 1-1 are provided with tube sheet 1-3, and heat exchange short tube 1-11 is arranged in pipe
The lower section of plate 1-3, compact micro-pressure-difference push interior circulation evaporation crystallizer 1 to have the heat exchange short tube 1-11 arranged vertically, exchange heat short
Pipe 1-11 annularly arranges that guide shell 1-9 is arranged in ring center, and stirring is provided in guide shell 1-9 and promotes paddle 1-8, described
Vertical direction is provided with several observation visor 1-12 on cylinder 1-1 side wall；The vapour phase of the top of the heat exchange short tube 1-11 is empty
It is interior to be provided with horizontally disposed demister 1-2.
Material is squeezed into compact micro-pressure-difference by feed pump 4 and is pushed in the tube side of interior circulation evaporation crystallizer 1, and preheater is passed through
8 exchange heat with the secondary steam condensate of high temperature, and preliminary preheating material is up to 105 DEG C or more.Salt water material after preheating enters compact micro-
Pressure difference pushes in interior circulation evaporation crystallizer 1, and pushes the recycle stock in interior circulation evaporation crystallizer 1 mixed with compact micro-pressure-difference
After conjunction, paddle 1-8 is promoted by stirring, is forced into the lower end of heat exchange short tube 1-11, and along heat exchange short tube under the action of thrust
During which and shell side 1-11 inner wall flows up, and enters guide shell 1-9 internal circulation flow after the upper end outflow of heat exchange short tube 1-11,
Interior saturated vapor, which exchanges heat, to be evaporated.Material concentration is related to evaporation capacity in system, adjusts feed rate, discharging flow or steam again
The frequency of recycle compressor 2 can be realized to material concentration stability contorting.Secondary steam condensate is as high-quality distilled water through condensing
The heat source as preheater 8 is discharged in water pump 5.Material after final concentration gets system by strong brine discharging pump 6, so far complete
At the Matter Transfer and evaporation and concentration in system.
It heats steam (118 DEG C of saturated vapor, corresponding saturation pressure are about 187kpa.a), is pushed into compact micro-pressure-difference
The shell side of interior circulation evaporation crystallizer 1, exchanges heat with the material of shell side, tube side evaporation generate secondary steam (about 100 DEG C,
101kpa.a) saturated vapor that return 2 repressurization of steam recycle compressor is warming up to 118 DEG C continues as heating steam circulation
It uses.So far the interior circulation of steam is completed.
The final Waste water concentrating of the present embodiment is precipitated to sodium chloride and sodium sulphate mixed crystal, the volume ratio of solid and liquid
22%, under the internal circulating load operating condition of setting, evaporation is stablized, and uniformly, solid flowing is smooth in circulation fluid for discharging, and no solid deposition is stifled
Situations such as pipe, occurs, and shows that compact micro-pressure-difference pushes interior circulating and evaporating concentration and crystallization apparatus to can satisfy the evaporation of sal prunella system and ties
Brilliant demand.
In this embodiment, brine recycling multiplying power is 1000 times of inlet amount, is much higher than hundred times of Natural Circulation or so
Circulating ratio, flow velocity is higher, and mobility is more preferable, and solid is less susceptible to deposit hardened.
In this embodiment, it is only 0.2 meter that stirring, which promotes the thrust conversion lift of paddle 1-8, is significantly less than 4 meters of forced circulation
The lift of left and right, it is only the half of forced circulation system that stirring, which promotes paddle 1-8 power,.
In this embodiment, the effectively evaporation temperature difference is only 0.3 DEG C, is significantly less than 3 DEG C of forced circulation or so of heat transfer temperature difference,
Since the boiling point temperature rise of this embodiment salt water is higher (7 DEG C), heat transfer temperature difference 27% is saved, i.e. the power consumption of vapour compression machine reduces
27%.It is such as used for the lower material of boiling point temperature rise, then energy-saving effect to be more obvious.
In this embodiment, the more conventional forced circulation of equipment total height reduces by 60% or more, and total height is no more than 3.0 meters,
Whole Transporting is fully achieved, can be used for moving in processing unit.
In this embodiment, the reduction of equipment total height brings the saving of case material, and the realization of big flow circulation is brought
Conventional forced circulation is compared in the reduction of total heat conduction area, and material saves 40%, compares Natural Circulation, and material saves 35%, economy
Benefit is evident.
Claims (5)
1. a kind of compact micro-pressure-difference pushes interior circulating and evaporating concentration and crystallization apparatus, including compact micro-pressure-difference to push interior circulating and evaporating
Crystallizer (1), it is characterised in that: it includes the cylinder being vertically arranged that the compact micro-pressure-difference, which pushes interior circulation evaporation crystallizer (1),
Body (1-1), the upper end cylinder (1-1) are provided with end socket (1-14), and fixed gas outlet (1-4), condensed water are provided on cylinder (1-1)
(1-5), feed inlet (1-6), discharge port (1-7), steam inlet (1-10) and steam (vapor) outlet (1-13) are exported, cylinder (1-1) is interior
Side is provided with tube sheet (1-3), and heat exchange short tube (1-11) setting circulation in the lower section of tube sheet (1-3), compact micro-pressure-difference push is steamed
Hair crystallizer (1) has the heat exchange short tube (1-11) arranged vertically, and heat exchange short tube (1-11) is annularly arranged, ring center setting
Guide shell (1-9), guide shell (1-9) is interior to be provided with stirring propulsion paddle (1-8), and compact micro-pressure-difference pushes interior circulation evaporation crystallizer
(1) preheater (8) and feed pump (4) are provided on feeding pipe, compact micro-pressure-difference pushes interior circulation evaporation crystallizer (1)
Discharge nozzle road setting discharging pump (6), compact micro-pressure-difference push interior circulation evaporation crystallizer (1) to be configured with steam pipework, the steaming
It is disposed on vapor pipeline steam recycle compressor (2), compact micro-pressure-difference pushes to be provided with not on interior circulation evaporation crystallizer (1)
Gas discharge pipe is coagulated, is provided with vacuum pump (7) on fixed gas discharge pipe.
2. a kind of compact micro-pressure-difference according to claim 1 pushes interior circulating and evaporating concentration and crystallization apparatus, feature to exist
In: the preheater (8) pushes the tube side of interior circulation evaporation crystallizer (1) to be connected with compact micro-pressure-difference, compact micro-pressure-difference
It is provided with condensate pump (5) on the shell side of circulation evaporation crystallizer (1) in pushing, condensate pump (5) is realized compact micro-pressure-difference
The secondary steam condensate formed in the heat exchange short tube (1-11) of circulation evaporation crystallizer (1) in pushing is passed through preheater (8) conduct
To the heat source of high-salt wastewater preheating.
3. a kind of compact micro-pressure-difference according to claim 1 or 2 pushes interior circulating and evaporating concentration and crystallization apparatus, feature
Be: vertical direction is provided with several observation visors (1-12) on described cylinder (1-1) side wall.
4. a kind of compact micro-pressure-difference according to claim 3 pushes interior circulating and evaporating concentration and crystallization apparatus, feature to exist
In: horizontally disposed demister (1-2) is provided in the vapor phase space of the top of the heat exchange short tube (1-11).
5. a kind of compact micro-pressure-difference according to claim 3 pushes interior circulating and evaporating concentration and crystallization apparatus, feature to exist
In: the stirring promotes the motor setting of paddle (1-8) in the outside of cylinder (1-1), and stirring promotes the blade of paddle (1-8) to protrude into
In to cylinder (1-1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820810360.1U CN208372514U (en) | 2018-05-26 | 2018-05-26 | A kind of compact micro-pressure-difference push in circulating and evaporating concentration and crystallization apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820810360.1U CN208372514U (en) | 2018-05-26 | 2018-05-26 | A kind of compact micro-pressure-difference push in circulating and evaporating concentration and crystallization apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635900A (en) * | 2018-05-26 | 2018-10-12 | 江苏源拓环境科技有限公司 | A kind of compact micro-pressure-difference push in circulating and evaporating concentration and crystallization apparatus |
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- 2018-05-26 CN CN201820810360.1U patent/CN208372514U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635900A (en) * | 2018-05-26 | 2018-10-12 | 江苏源拓环境科技有限公司 | A kind of compact micro-pressure-difference push in circulating and evaporating concentration and crystallization apparatus |
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