CN206635064U - A kind of energy-saving membrane distillation wastewater treatment equipment of modularization installation - Google Patents
A kind of energy-saving membrane distillation wastewater treatment equipment of modularization installation Download PDFInfo
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- CN206635064U CN206635064U CN201720323535.1U CN201720323535U CN206635064U CN 206635064 U CN206635064 U CN 206635064U CN 201720323535 U CN201720323535 U CN 201720323535U CN 206635064 U CN206635064 U CN 206635064U
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- 239000012528 membrane Substances 0.000 title claims abstract description 163
- 238000004821 distillation Methods 0.000 title claims abstract description 37
- 238000009434 installation Methods 0.000 title claims abstract description 19
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 16
- 238000012805 post-processing Methods 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000011221 initial treatment Methods 0.000 claims abstract description 8
- 238000009835 boiling Methods 0.000 claims description 2
- 235000012489 doughnuts Nutrition 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010865 sewage Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 239000000243 solution Substances 0.000 description 16
- 239000002351 wastewater Substances 0.000 description 14
- 238000009834 vaporization Methods 0.000 description 11
- 230000008016 vaporization Effects 0.000 description 11
- 239000012141 concentrate Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000012267 brine Substances 0.000 description 9
- 238000000605 extraction Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 9
- 239000002699 waste material Substances 0.000 description 9
- 239000000835 fiber Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 238000005984 hydrogenation reaction Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of energy-saving membrane distillation wastewater treatment equipment of modularization installation, including primary treatment module and post-processing module, primary treatment module includes the first membrane distiller sub-module, the second membrane distiller sub-module and heat pump sub-module, and heat pump sub-module includes the first reboiler, the second reboiler and an at least compressor；The gas-liquid mixed charging aperture of the first membrane distiller sub-module of hot material outlet access of first reboiler, the concentrated solution outlet of first membrane distiller sub-module accesses the cold burden entrance of the second reboiler, the gas-liquid mixed charging aperture of the second membrane distiller sub-module of hot material outlet access of second reboiler, the concentrated solution outlet of the second membrane distiller sub-module are connected with post-processing module；The overhead vapor of first membrane distiller sub-module and the second membrane distiller sub-module accesses suction port of compressor after converging, compressor outlet accesses the steam inlet of the first reboiler.The device is easy to assembly, good energy-conserving effect, suitable for handling all kinds of sewage disposals.
Description
Technical field
The invention belongs to technical field of sewage, more particularly to a kind of available for all kinds of high-salt sewages processing, reuse
The energy-saving membrane distillation wastewater treatment equipment and method of modularization installation.
Background technology
Industrial wastewater gradually increases along with industrial continuous development yield, wherein containing a large amount of all kinds of organic dirts
Thing and solubility salt impurity are contaminated, directly discharge can cause to seriously endanger to water body and surrounding environment, it is necessary to carry out processing ability
Discharge or reuse.Film distillation technology carries out mass transfer separation by motive force of the partial pressure difference of the volatile components of film both sides, utilizes
Film distillation technology carries out the concentration of industrial brine waste, there is separative efficiency height, operating condition gently, by salinity to be influenceed small
Advantage.However, film distillation technology not yet realizes big mould commercial Application, its main cause be also it is untapped go out can the marketization it is efficient
Distillation device, membrane distillation process depend on the process of phase transformation, it is necessary to which pending feed liquid is carried out into heating vaporization, heat during being somebody's turn to do
If amount is unable to effective recycling, the high running cost in terms of energy can be caused；The mechanical strength of membrane module is poor simultaneously, its
Make complicated with mounting process, it is desirable to high.
The U of patent CN 203990316 disclose a kind of counterflow exchange distillation device, in ensure that by setting diagrid net
Compound with regular structure between empty fiber membrane film group and hollow tube pipe group, improves whole membrane distillation process thermal efficiency, but from hollow tube pipe
Brine waste after group discharging opening output preheating, it still needs to further be promoted to vapourizing temperature after external complement exchanges heat.The hair
Although bright part make use of the partial heat of high temperature brine waste, whole membrane distillation process thermal efficiency is improved, stills need the external world
The supplement of heat.
The A of patent CN 104014244 disclose a kind of cartridge type membrane distiller, defeated after being heated for traditional membrane distillation Central Plains water
It is sent to caused thermal loss in membrane distiller, there is provided a kind of membrane distiller with heating function.Under membrane distiller
End is mounted directly electric heater, and the power frequency conversion of its electric heater is adjustable, it is possible to achieve raw water adds directly in membrane distiller
Heat, and the power of electric heater can be adjusted according to specific technological requirement, reduce the heat stream on liquid-transport pipe-line
Lose.Even so, the steam temperature but from the extraction mouth extraction of its steam is higher, and its energy fails to obtain fully recovery profit
With causing the running cost in the device in terms of energy higher.
The component hollow fiber film assembly used in membrane distillation is disclosed more than simultaneously in two patents, its manufacturing technology is answered
Miscellaneous and tube sheet make it is also more difficult, if carrying out site operation at the construction field (site), it is necessary to installation specification to workmen
It is higher.
The content of the invention
Goal of the invention：Present invention aims in view of the shortcomings of the prior art, there is provided a kind of easy for installation, energy utilization
The energy-saving membrane distillation wastewater treatment equipment and method of the high modularization installation of rate height, good sewage processing effect, wastewater recycle rate.
Technical scheme：A kind of energy-saving membrane distillation wastewater treatment equipment of modularization installation of the present invention, including one
Group primary treatment module and N level post-processing modules, the primary treatment module includes the first membrane distiller sub-module, the second film steams
Device sub-module and heat pump sub-module are evaporated, the heat pump sub-module includes the first reboiler, the second reboiler and at least one compression
Machine；The hot material outlet of first reboiler accesses the gas-liquid mixed charging aperture of the first membrane distiller sub-module, and described the
The concentrated solution outlet of one membrane distiller sub-module accesses the cold burden entrance of second reboiler, the hot material of second reboiler
Outlet accesses the gas-liquid mixed charging aperture of the second membrane distiller sub-module, the concentrate of the second membrane distiller sub-module
Outlet is connected with post-processing module；The overhead vapor of the first membrane distiller sub-module and the second membrane distiller sub-module is converged
The suction port of compressor is accessed after conjunction, the compressor outlet accesses the steam inlet of first reboiler.
Further, described every one-level post-processing module includes a reboiler and a membrane distiller, described to boil again
The cold burden entrance of device and the concentrated solution outlet of the membrane distiller of upper level connect, and hot material outlet and the film at the same level of the reboiler steam
The gas-liquid mixed charging aperture for evaporating device connects, and the overhead vapor outlet of the membrane distiller in described post-processing module accesses the pressure
Contracting machine.
Further, 0≤N≤10.
Further, it is further to improve treatment effect, in the second reboiler and N the level post-processing module again
Boil the steam inlet connection external boiler of device.
Further, in the first membrane distiller sub-module, the second membrane distiller sub-module and N level post-processing modules
Membrane distiller sub-module model it is identical, including cylindrical tube module and membrane module module, the cylindrical tube module include
Cylindrical tube, upper cover, orifice plate, impingement baffle, gas-liquid mixed charging aperture, concentrated solution outlet and steam (vapor) outlet, the membrane module mould
Block is made up of some groups of U-shaped hollow fiber membrane module units；Several through holes, membrane module module are uniformly offered on the orifice plate
Fixed through through hole through bolt and orifice plate；Cylindrical tube, upper cover, orifice plate are connected by flange in the cylindrical tube module；
The gas-liquid mixed charging aperture and steam (vapor) outlet are connected with cylindrical tube, upper cover respectively by flange；Concentrated solution outlet welds
In the lower section of cylindrical tube；The impingement baffle is welded in the lower section inside cylindrical tube, and is located at the gas-liquid mixed charging aperture
Near.
Further, reboiler is thermal siphon in first reboiler, the second reboiler and N level post-processing modules
Formula reboiler, and it is connected to vavuum pump on each reboiler.
The method that wastewater treatment is carried out using claim 1 described device, detailed process are as follows：Waste water raw water through first again
The cold burden entrance for boiling device inputs the first reboiler, is partly vaporized in the first reboiler, and hot material is delivered into the first membrane distillation
Device sub-module；Steam permeable membrane silk in first membrane distiller sub-module is entered in cover, then defeated by steam (vapor) outlet
Enter compressor, concentrate is inputted in the second reboiler, the second membrane distiller sub-module of hot material outlet access of the second reboiler；The
Steam permeable membrane silk in two membrane distiller sub-modules is entered in cover, then inputs compressor by steam (vapor) outlet, dense
In reboiler in contracting liquid input post-processing module, the reboiler hot material outlet access next stage post processing mould in post-processing module
In membrane distiller in block, the steam (vapor) outlet access compressor of membrane distiller in post-processing module, compressor is by membrane distillations at different levels
Enter the first reboiler after the steam pressurization heating of device, exchanged heat as thermal source with the raw water pre-processed.
Further, to improve treatment effect, the first membrane distiller sub-module and the first reboiler are in reduced pressure
Lower operation, and operating pressure is the MPa of 0.01 MPa ~ 0.045.
Further, to improve treatment effect, the second membrane distiller sub-module and the second reboiler are in reduced pressure
Lower operation, and operating pressure is the MPa of 0.01 MPa ~ 0.05.
Further, it is raising treatment effect, the temperature of the compressor outlet material and the temperature difference >=20 of waste water raw water
℃。
Beneficial effect：（1）The present invention fully relies on additional heat for the water vapor of traditional membrane distillation Central Plains and heated, energy
The problems such as utilization rate is relatively low, installation operation is complicated is measured, is devised at a kind of energy-conservation membrane distillation waste water of new modularization installation
Science and engineering skill and device；Heat pump techniques are introduced into membrane distillation Waste Water Treatment, by the operation pressure for adjusting two groups of membrane distillers
The operating pressure of power and compressor, realize and heating vaporization is carried out to pretreated raw water, effectively reduce and steamed using a large amount of water
Vapour is high as heating medium, whole system capacity usage ratio；
（2）The system uses thermosyphon reboiler, by pretreated raw water in thermosyphon reboiler part vapour
After change, liquid-vapor mixture is formed, after pretreated raw water is heated, volumetric expansion, density, which diminishes, to lighten, and can rise, and profit
By the use of density contrast as motive force, enter membrane distiller from the gas-liquid mixed charging aperture of membrane distiller module, the cold liquid of surrounding comes
Supplement, forced circulation is formed, had both saved the pump of circulation, higher air water can be obtained by realizing again inside membrane distiller
Than；
（3）For the system as membrane separation technique, installation operation is convenient, the capacity usage ratio of system is high, is very suitable for sea
The recyclings containing high slat-containing wastewater such as water desalination, municipal sewage and industrial cycle waste water；
（4）The present apparatus uses modular mounting techniques, and membrane distiller, compressor, reboiler are installed in module, and
All kinds of interfaces are reserved outside module, the installation effectiveness of device is on the one hand improved, it is existing on the other hand can to reduce construction to greatest extent
Construction noise, dust pollution and the problems such as potential safety hazard.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram in the embodiment of the present invention 1；
Fig. 2 is the apparatus structure schematic diagram in the embodiment of the present invention 2；
Wherein：1st, the first membrane distiller sub-module, the 11, first membrane distiller sub-module gas-liquid mixed charging aperture, 12, first
Membrane distiller sub-module concentrated solution outlet；2nd, the second membrane distiller sub-module, the 21, second membrane distiller sub-module gas-liquid mixed are entered
Material mouth, the 22, second membrane distiller sub-module concentrated solution outlet；3rd, the first reboiler, the 4, second reboiler, 5, compressor, 6, after
Processing module, 61, post-processing module reboiler, 62, post-processing module membrane distiller.
Embodiment
Technical solution of the present invention is described in detail below by accompanying drawing, but protection scope of the present invention is not limited to
The embodiment.
Embodiment 1：A kind of energy-saving membrane distillation wastewater treatment equipment of modularization installation, including one group of primary treatment mould
Block, primary treatment module include the first membrane distiller sub-module 1, the second membrane distiller sub-module 2 and heat pump sub-module, heat pump point
Module includes the first reboiler 3, the second reboiler 4 and a compressor 5；The first film of hot material outlet access of first reboiler 3
The gas-liquid mixed charging aperture 11 of distiller sub-module 1, the access of concentrated solution outlet 12 second of the first membrane distiller sub-module are boiled again
The cold burden entrance of device 4, the gas-liquid mixed charging aperture 21 of the second membrane distiller sub-module of hot material outlet access of the second reboiler 4,
By the extracted waste water concentrate of concentrated solution outlet 22 of the second membrane distiller sub-module；First membrane distiller sub-module 1 and second
The overhead vapor of membrane distiller sub-module 2 accesses the entrance of compressor 5 after converging, compressor outlet accesses the steam of the first reboiler
Entrance；The steam inlet connection external boiler of second reboiler in the present apparatus；First membrane distiller sub-module 1 and the second film steam
It is identical to evaporate the model of device sub-module 2, including cylindrical tube module and membrane module module, cylindrical tube module include cylindrical tube, on
End socket, orifice plate, impingement baffle, gas-liquid mixed charging aperture, concentrated solution outlet and steam (vapor) outlet, membrane module module by some groups it is U-shaped in
Empty fiber membrane modular unit forms；Several through holes are uniformly offered on orifice plate, membrane module module is through through hole through bolt and hole
Plate is fixed；Cylindrical tube, upper cover, orifice plate are connected by flange in cylindrical tube module；Gas-liquid mixed charging aperture and steam go out
Mouth is connected with cylindrical tube, upper cover respectively by flange；Concentrated solution outlet is welded in the lower section of cylindrical tube；Erosion control plate weld
Lower section inside cylindrical tube, and near gas-liquid mixed charging aperture；First reboiler and the second reboiler are hot rainbow
Suction reboiler, and it is connected to vavuum pump on each reboiler.
Cylindrical tube in the present embodiment in all membrane distillers is highly 1200mm, internal diameter 80mm, wall thickness 5mm,
The cavity of membrane distiller cylinder is divided into lid two parts in cylindrical tube and membrane distiller, and upper and lower two parts are separated by orifice plate,
Cylindrical tube is divided into membrane distillation segment occurred and steam caching section；Wherein membrane distillation segment occurred is mainly made up of membrane module module,
Membrane module module by 30 groups of internal diameters is 0.8 mm, wall thickness is 0.5 mm, aperture is 0.25 μm, porosity 0.55, length
Formed for 1000mm hollow-fibre membrane film wire；Membrane module module is fixed on orifice plate through bolt in membrane distiller module, and first
Membrane distiller module and the first thermosyphon reboiler operating pressure are 0.02MPa under reduced pressure, the second membrane distiller module
It is 0.03MPa under reduced pressure with the second thermosyphon reboiler operating pressure, the operating pressure of heat pump is 0.1 MPa, each
Vavuum pump is connected on thermosyphon reboiler.
The principle that wastewater treatment is carried out using said apparatus is as follows：Cold burden entrance input of the waste water raw water through the first reboiler
First reboiler, partly vaporized in the first reboiler, and hot material is delivered to the first membrane distiller sub-module；First membrane distillation
Steam permeable membrane silk in device sub-module is entered in cover, then inputs compressor, concentrate input by steam (vapor) outlet
In second reboiler, the second membrane distiller sub-module of hot material outlet access of the second reboiler；In second membrane distiller sub-module
Steam permeable membrane silk enter in cover, then by steam (vapor) outlet input compressor, by the concentration of the second membrane distiller
Liquid outlet extracted waste water processing concentrate；Compressor will enter the first reboiler after the steam pressurization heating of membrane distillers at different levels,
Exchanged heat as thermal source with the raw water pre-processed.
Use said apparatus to sodium chloride content for 3.5wt%, flow is that 1035 kg/h seawater is recycled, sea
Water raw water temperature is 25 DEG C, and raw water enters the first thermosyphon reboiler and carries out heating part vaporization, the steam-water mixing after vaporization
Thing temperature is 61.0 DEG C, and steam water interface enters the first membrane distiller module, and the vapor formed after brine waste vaporization passes through
Hollow-fibre membrane film wire, after rising to the upper part cavity in the cylindrical tube of the first membrane distiller module, from the first membrane distillation
The steam extraction mouth extraction of device module；Concentrate after partial concentration is adopted from the concentrate liquid outlet of the first membrane distiller module
Go out, into the second thermosyphon reboiler, exchanged heat with additional steam, part vaporization to 86 DEG C of membrane distillers of entrance second
Module, further separated；The steam produced from the first membrane distiller module and the second membrane distiller module is pre- through pipeline
System module processed is delivered to compressor, increases to 0.1 MPa through compressor increased pressure, and now the temperature of steam is 100
℃；Steam after compressor pressurizes is delivered to the first thermosyphon reboiler, for heating seawater raw water, now, first
The heat exchange amount of thermosyphon reboiler is 470.8 kW；Heat exchange amount needed for second thermosyphon reboiler is mended by additional steam
Fill, now required additional heat is 216.1 kW.Heat pump techniques are applied into distillation device processing saliferous through the present invention to give up
Water, it can save energy 68.5%；Dense brine waste saliferous rate after processing is 11.7%, the concentrated solution outlet through the second membrane distiller module
Extraction.
Embodiment 2：With essentially identical in embodiment 1, its difference is device, also includes in the present embodiment in the present embodiment
One group of post-processing module 6, the post-processing module 6 include a reboiler 61 and a membrane distiller 62, the reboiler it is cold
Material entrance be connected with the concentrated solution outlet of the second membrane distiller sub-module 2, the hot material of the reboiler 61 of post-processing module export and
The gas-liquid mixed charging aperture of membrane distiller 62 at the same level connects, the overhead vapor of the membrane distiller 62 in described post-processing module 6
Outlet access compressor 5；Cylindrical tube in the present embodiment in all membrane distillers is highly 1200mm, internal diameter 50mm, wall
Thickness is 5mm, and the cavity of membrane distiller cylinder is divided into lid two parts in cylindrical tube and membrane distiller, and upper and lower two parts pass through
Orifice plate separates, and cylindrical tube is divided into membrane distillation segment occurred and steam caching section；Wherein membrane distillation segment occurred is mainly by membrane module
Module forms, and membrane module module by 25 groups of internal diameters is 0.8 mm, wall thickness is 0.45 mm, aperture is 0.25 μm, porosity is
0.5th, the hollow-fibre membrane film wire that length is 1000mm forms；Membrane module module is consolidated through bolt in each group of membrane distiller module
Due on orifice plate, the first membrane distiller module and the first thermosyphon reboiler operating pressure are 0.045MPa under reduced pressure,
Second membrane distiller module and the second thermosyphon reboiler operating pressure are 0.05MPa under reduced pressure, the operation pressure of heat pump
Power is 0.1 MPa, and the operating pressure of membrane distiller and thermosyphon reboiler in post-processing module is under reduced pressure
0.035MPa。
Industrial high slat-containing wastewater can be handled using said apparatus, the far water temperature of brine waste is 25 DEG C, right
SO4 2-Content is 3.15%, NH4 +Content is 0.98%, Na+Content is 0.172% and contains micro Ca2+、Mg2+、NO3 -And HCO3 -'s
Flow is that 1046 kg/h pretreated production heavy-oil hydrogenation catalyst waste water is handled, into the first heat siphon type again
Boil device and carry out heating part vaporization, the steam water interface temperature after vaporization is 79.6 DEG C, and steam water interface enters the first membrane distillation
Device module, the vapor formed after brine waste vaporization pass through hollow-fibre membrane film wire, the upper part risen in cylindrical tube
After cavity, from steam extraction mouth extraction；Concentrate after partial concentration produces from concentrated solution outlet, into the second heat siphon type again
Device is boiled, is exchanged heat with additional steam, part vaporization is further separated to 92 DEG C of entrance, second group of membrane distiller module；
The partial concentration liquid of second group of membrane distiller produces from concentrated solution outlet, into the thermosyphon reboiler in post-processing module
In, exchanged heat with additional steam, part vaporization is further divided to 93 DEG C of membrane distillers entered in post-processing module
From；Brine waste concentrate is produced by the concentrated solution outlet of the membrane distiller in post-processing module；From the first membrane distiller module,
The steam of membrane distiller extraction in second membrane distiller module and post-processing module conveys through pipe prefabrication system module
To compressor, increase to 0.1 MPa through compressor increased pressure, now the temperature of steam is 100 DEG C；It will add through compressor
Steam after pressure is delivered to the first thermosyphon reboiler, for the heavy-oil hydrogenation catalyst waste water after heat pre-treatment, now,
The heat exchange amount of first thermosyphon reboiler is 521.9 kW；Heat exchange amount needed for second thermosyphon reboiler is by additional steaming
Hot repair fills, and now required additional heat is 173.9 kW；The heat exchange amount of thermosyphon reboiler in post-processing module is
137.2 kW.Heat pump techniques are applied to distillation device processing heavy-oil hydrogenation catalyst waste water through the present invention, can save energy
75.0%；Heavy-oil hydrogenation catalyst waste water saliferous rate after processing is 20.2%, the concentration of the membrane distiller in post-treated module
Liquid outlet extraction brine waste concentrate.
As described above, although the present invention has been represented and described with reference to specific preferred embodiment, but it must not be explained
For to the limitation of itself of the invention., can be right under the premise of the spirit and scope of the present invention that appended claims define are not departed from
Various changes can be made in the form and details for it.
Claims (6)
- A kind of 1. energy-saving membrane distillation wastewater treatment equipment of modularization installation, it is characterised in that：Including one group of primary treatment mould Block and N level post-processing modules, the primary treatment module include the first membrane distiller sub-module, the second membrane distiller sub-module and Heat pump sub-module, the heat pump sub-module include the first reboiler, the second reboiler and an at least compressor；Described first again The hot material outlet for boiling device accesses the gas-liquid mixed charging aperture of the first membrane distiller sub-module, and first membrane distiller divides mould The concentrated solution outlet of block accesses the cold burden entrance of second reboiler, the hot material outlet access of second reboiler described the The gas-liquid mixed charging aperture of two membrane distiller sub-modules, concentrated solution outlet and the post processing mould of the second membrane distiller sub-module Block connects；The overhead vapor of the first membrane distiller sub-module and the second membrane distiller sub-module accesses the pressure after converging Contracting machine entrance, the compressor outlet access the steam inlet of first reboiler.
- 2. the energy-saving membrane distillation wastewater treatment equipment of modularization installation according to claim 1, it is characterised in that：It is described Every one-level post-processing module include a reboiler and a membrane distiller, the cold burden entrance of the reboiler and upper level The concentrated solution outlet connection of membrane distiller, the hot material outlet of the reboiler and the gas-liquid mixed charging aperture of membrane distiller at the same level connect Connect, the overhead vapor outlet of the membrane distiller in described post-processing module accesses the compressor.
- 3. the energy-saving membrane distillation wastewater treatment equipment of modularization installation according to claim 1, it is characterised in that：It is described 0≤N≤10。
- 4. the energy-saving membrane distillation wastewater treatment equipment of modularization installation according to claim 1, it is characterised in that：It is described The steam inlet of second reboiler and the reboiler in N level post-processing modules connects external boiler.
- 5. the energy-saving membrane distillation wastewater treatment equipment of modularization installation according to claim 1, it is characterised in that：It is described The type of first membrane distiller sub-module, the second membrane distiller sub-module and the membrane distiller sub-module in N level post-processing modules It is number identical, including cylindrical tube module and membrane module module, the cylindrical tube module include cylindrical tube, upper cover, orifice plate, Impingement baffle, gas-liquid mixed charging aperture, concentrated solution outlet and steam (vapor) outlet, the membrane module module is by some groups of U-shaped doughnuts Film module unit forms；Several through holes are uniformly offered on the orifice plate, membrane module module is through through hole through bolt and orifice plate It is fixed；Cylindrical tube, upper cover, orifice plate are connected by flange in the cylindrical tube module；The gas-liquid mixed charging aperture and Steam (vapor) outlet is connected with cylindrical tube, upper cover respectively by flange；Concentrated solution outlet is welded in the lower section of cylindrical tube；It is described Impingement baffle is welded in the lower section inside cylindrical tube, and near the gas-liquid mixed charging aperture.
- 6. the energy-saving membrane distillation wastewater treatment equipment of modularization installation according to claim 1, it is characterised in that：It is described Reboiler is thermosyphon reboiler in first reboiler, the second reboiler and N level post-processing modules, and each boils again Vavuum pump is connected on device.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106865663A (en) * | 2017-03-30 | 2017-06-20 | 中建安装工程有限公司 | Energy-saving Membrane Materials wastewater treatment equipment and method that a kind of modularization is installed |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865663A (en) * | 2017-03-30 | 2017-06-20 | 中建安装工程有限公司 | Energy-saving Membrane Materials wastewater treatment equipment and method that a kind of modularization is installed |
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