CN109621730A - A kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process - Google Patents
A kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process Download PDFInfo
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- CN109621730A CN109621730A CN201811461998.XA CN201811461998A CN109621730A CN 109621730 A CN109621730 A CN 109621730A CN 201811461998 A CN201811461998 A CN 201811461998A CN 109621730 A CN109621730 A CN 109621730A
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- cleaning
- reverse osmosis
- osmosis membrane
- cleaning solution
- water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
Abstract
This application involves cleaning equipment for reverse osmosis membrane fields, more particularly to a kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process, what is solved is that on-line cleaning mode in the prior art causes cleaning solution during cleaning counter-infiltration system, cleaning process is long, cleaning solution is in the process of cleaning, effective component can gradually decrease, and clenaing effect is caused to reduce, and cleaning effect is caused to decline；Simultaneously, the pollutant that reverse osmosis membrane assembly washes down from front end mixes in cleaning solution, the reverse osmosis membrane assembly of rear end is caused secondary dirty stifled, and the reverse osmosis membrane assembly of rear end originally polluted compared with the reverse osmosis membrane assembly of front end it is more serious, therefore the technical issues of further result in the reverse osmosis membrane assembly cleaning effect degradation of rear end；In order to solve the above-mentioned technical problem, the embodiment of the present application discloses a kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process, wherein includes: cleaning solution supply department, cleaning part, the cleaning part connects the cleaning solution supply department.
Description
Technical field
This application involves cleaning equipment for reverse osmosis membrane field more particularly to a kind of novel off-line type cleaning equipment for reverse osmosis membrane
And its cleaning process.
Background technique
Reverse osmosis membrane assembly is the valuable component of counter-infiltration system, suitably uses and effectively maintenance is so that reverse osmosis membrane assembly
As long as the several years can be used, counter-infiltration system operation can deposit one layer of pollutant after a certain period of time, in reverse osmosis membrane assembly, influence
At this moment the performance of counter-infiltration system just needs to clean reverse osmosis membrane assembly to restore the performance of counter-infiltration system.
Currently, reverse osmosis membrane assembly mainly has on-line cleaning and offline two kinds of cleaning ways of cleaning.When using on-line cleaning
When mode, since the reverse osmosis membrane assembly in large reverse osmosis system is usually by the more membrane component series connection of a pressure vessel for reverse osmosis
Arrangement, such as three or six membrane components are installed in series in a putamina, therefore when cleaning to counter-infiltration system, cleaning
Liquid enters counter-infiltration system, successively cleans to reverse osmosis membrane assembly, i.e., cleaning solution cleans first reverse osmosis membrane assembly
Afterwards, then clean second reverse osmosis membrane assembly, and so on until the reverse osmosis membrane assembly of end.But present inventor is in reality
During applying the technical solution in the embodiment of the present application, the discovery prior art is at least had the following technical problems:
1, on-line cleaning mode causes cleaning solution during cleaning counter-infiltration system, and cleaning process is very long, and cleaning solution
In the process of cleaning, effective component can gradually decrease, and clenaing effect is caused to reduce, so as to cause cleaning effect decline；Meanwhile
The pollutant that reverse osmosis membrane assembly washes down from front end mixes in cleaning solution, causes to the reverse osmosis membrane assembly of rear end secondary
Dirt is stifled, and the reverse osmosis membrane assembly of rear end originally polluted compared with the reverse osmosis membrane assembly of front end it is more serious, therefore after further resulting in
The reverse osmosis membrane assembly cleaning effect degradation at end.
Summary of the invention
Technical problems to be solved in this application are that on-line cleaning mode causes washing lotion during cleaning counter-infiltration system,
Cleaning process is very long, and cleaning solution is in the process of cleaning, and effective component can gradually decrease, and clenaing effect is caused to reduce, thus
Cleaning effect is caused to decline；Meanwhile mixing in cleaning solution from the pollutant that front end reverse osmosis membrane assembly washes down, to rear end
Reverse osmosis membrane assembly cause it is secondary dirty stifled, and the reverse osmosis membrane assembly of rear end originally compared with front end reverse osmosis membrane assembly pollution more
Seriously, therefore the reverse osmosis membrane assembly cleaning effect degradation of rear end is further resulted in.
In order to solve the above-mentioned technical problem, the embodiment of the present application provides a kind of novel off-line type cleaning equipment for reverse osmosis membrane
And its cleaning process.
In a first aspect, the embodiment of the present application provides a kind of novel off-line type cleaning equipment for reverse osmosis membrane, wherein include:
Cleaning solution supply department；Cleaning part, the cleaning part connect the cleaning solution supply department.
Preferably, the cleaning solution supply department includes: cleaning solution medicine-chest, and the cleaning solution medicine-chest is for storing buffering cleaning
Liquid；Flushing water pump, described flushing water pump one end connect the cleaning solution medicine-chest；Cartridge filter, the flushing water pump other end
The cartridge filter is connected, the cartridge filter connects the cleaning part.
Preferably, the cleaning part includes: water inlet line, and the water inlet line connects the cleaning solution supply department；Cleaning
Device, the washer are connect with the water inlet line；Concentrated water pipeline, the concentrated water pipeline connect the washer；Water purification pipeline,
The water purification pipeline connects the washer.
Preferably, the washer cleans mathematical model are as follows:
Qs=B × (Cm-Cp)
In formula:
QwFor through water flux, A is that water penetrates the factor, PfFor water supply lateral pressure, Δ PfcPoor, the π for whole story end pressuremFor to
Water side surface osmotic pressure, πpTo produce water side osmotic pressure,
QsFor through flux salt, B is that salt penetrates the factor, CmFor feedwater side surface salinity, CpTo produce water side salinity.
Preferably, the washer quantity is at least two and is arranged in parallel.
Preferably, the cleaning part further include: pressure gauge one, the pressure gauge one are arranged on the water inlet line.
Preferably, the cleaning part further include: pressure gauge two, the pressure gauge two are arranged on the concentrated water pipeline；It adjusts
Valve is saved, the control valve is arranged on the concentrated water pipeline.
Preferably, the cleaning part further include: flowmeter, the flowmeter are arranged in the water purification pipeline.
Preferably, mathematical model is cleaned in the washer parallel connection are as follows:
In formula:
Qpi、Qpi+1For through water flux, AiThe factor, P are penetrated for waterfFor water supply lateral pressure, CfFor constant, fA() is known
Function, Qfi、Qfi+1For known variables,
QsiFor through flux salt, BiThe factor, k are penetrated for salt1i、k1i+1、k2i、k2i+1For the normal of characterization concentrated water drag characteristics
Number, fB() is known function, and Y is constant.
Second aspect, the embodiment of the present application also provides a kind of cleaning processes, wherein includes:
Cleaning solution supply, the cleaning solution supply department supply reverse osmosis membrane cleaning solution；Reverse osmosis membrane cleaning, the cleaning part
Clean reverse osmosis membrane.
Preferably, the cleaning solution supplies step specifically: feeds cleaning solution in the cleaning solution medicine-chest, by described clear
Cleaning solution, is then pumped into the cartridge filter by the flushing water pump, by described by washing lotion medicine-chest storage buffering cleaning solution
After cartridge filter is filtered cleaning solution, then cleaning solution fed into the cleaning part.
Preferably, the reverse osmosis membrane cleaning step specifically: reverse osmosis membrane to be cleaned is fitted into the washer,
It is fed in the washer by the cleaning solution that the cleaning solution supply department feeds via water inlet line, wherein the washer quantity
It for 2 or more and is arranged in parallel, i.e., cleaning solution is fed separately into each washer and cleans to reverse osmosis membrane therein, cleaning
Afterwards, cleaning solution is discharged by water purification pipeline and concentrated water pipeline respectively.
Preferably, the cleaning process further include: cleaning effect is adjusted, according to the pressure gauge one and the pressure gauge two
And the numerical value of the flowmeter, the control valve is adjusted, the pressure of the water inlet line and the concentrated water pipeline is adjusted, thus
Adjust the cleaning effect of the novel off-line type cleaning equipment.
Said one or multiple technical solutions in the embodiment of the present application at least have following one or more technology effects
Fruit:
1, a kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process of the embodiment of the present application, by using packet
The novel off-line type cleaning equipment for reverse osmosis membrane of cleaning solution supply department and cleaning part is included, wherein cleaning solution supply department includes cleaning solution
Medicine-chest, flushing water pump, cartridge filter, cleaning part include water inlet line, washer, concentrated water pipeline, water purification pipeline, and washer
Quantity is at least 2 and is arranged in parallel, and water inlet line, concentrated water pipeline by certain requirements are equipped with pressure gauge, tune in water purification pipeline
Valve, flowmeter are saved, solving on-line cleaning mode in the prior art causes cleaning solution during cleaning counter-infiltration system, clearly
Wash journey is very long, and cleaning solution is in the process of cleaning, and effective component can gradually decrease, and cause clenaing effect to reduce, to lead
Cause cleaning effect decline；Meanwhile mixing in cleaning solution from the pollutant that front end reverse osmosis membrane assembly washes down, to rear end
Reverse osmosis membrane assembly causes secondary dirt stifled, and the reverse osmosis membrane assembly of rear end is originally tighter compared with the pollution of the reverse osmosis membrane assembly of front end
Again, the technical issues of therefore further resulting in the reverse osmosis membrane assembly cleaning effect degradation of rear end achieves shortening cleaning
Process ensures cleaning solution effective component, and clenaing effect is promoted, the technical effect of cleaning effect enhancing.
Detailed description of the invention
Fig. 1 be the embodiment of the present application a kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process equipment it is whole
Body schematic diagram.
Fig. 2 be the embodiment of the present application a kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process equipment it is left
Side axle mapping.
Fig. 3 be a kind of novel off-line type cleaning equipment for reverse osmosis membrane of the embodiment of the present application and rise cleaning process equipment it is right
Side axle mapping.
In attached drawing:
1, cleaning solution supply department 2, cleaning part 11, cleaning solution medicine-chest
12, flushing water pump 13, cartridge filter 21, water inlet line
22, washer 23, concentrated water pipeline 24, water purification pipeline
25, pressure gauge 1, pressure gauge 2 27, control valve
28, flowmeter
Specific embodiment
The embodiment of the present application provides a kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process, the application mention
The technical solution general thought of confession is as follows: reverse osmosis by using the novel off-line type including cleaning solution supply department 1 and cleaning part 2
Membrane cleaning equipment, wherein cleaning solution supply department 1 includes cleaning solution medicine-chest 11, flushing water pump 12, cartridge filter 13, cleaning part 2
Including water inlet line 21, washer 22, concentrated water pipeline 23, water purification pipeline 24, and 22 quantity of washer is at least 2 and parallel connection
Arrangement, water inlet line 21, concentrated water pipeline 23, in water purification pipeline 24 by certain requirements equipped with pressure gauge 1, pressure gauge 2 26, tune
Valve 27, flowmeter 28 are saved, solving on-line cleaning mode in the prior art causes cleaning solution in cleaning counter-infiltration system process
In, cleaning process is very long, and cleaning solution is in the process of cleaning, and effective component can gradually decrease, and cause clenaing effect to reduce, from
And cleaning effect is caused to decline；Meanwhile mixing in cleaning solution from the pollutant that front end reverse osmosis membrane assembly washes down, to rear
The reverse osmosis membrane assembly at end causes secondary dirt stifled, and reverse osmosis membrane assembly of the reverse osmosis membrane assembly of rear end originally compared with front end pollutes
More seriously, the technical issues of therefore further resulting in the reverse osmosis membrane assembly cleaning effect degradation of rear end, achieves shortening
Clean-up process ensures cleaning solution effective component, and clenaing effect is promoted, the technical effect of cleaning effect enhancing.
The technical issues of in order to solve the application and technical solution and technical effect are more clearly understood, below by way of
The application is described in detail in drawings and examples.Should be apparent, specific embodiment described herein is the application one
Divide embodiment, be only used to explain the application, is not used to limit the application, those skilled in the art are not paying creativeness
The every other embodiment obtained when labour belongs to the application protection scope, in the absence of conflict, the embodiment of the present application
And the technical characteristic in embodiment can be combined with each other.
In the description of the embodiment of the present application, it should it is apparent, term " center ", " in ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "inner", "outside", "top", "bottom", " side ", "vertical", "horizontal" is based on the figure
Orientation or positional relationship, description the embodiment of the present application merely for convenience and simplified description, rather than described in indication or suggestion
Device or element must have specific direction or positional relationship, that is, should not be understood as the limitation to the embodiment of the present application；In addition,
Term " first ", " second ", " third ", " the 4th " etc. are only used for facilitating description or simplify description, rather than its is heavy for indication or suggestion
The property wanted.
, should be apparent in the description of the embodiment of the present application, unless otherwise specific regulation or limit, term " installation ",
" connected ", " connection " etc. shall be understood in a broad sense, and can be to be fixedly connected e.g., can be to be detachably connected, and can connect for globality；It can
It can be electrical connection for mechanical connection；It can be to be directly connected to, can be to be indirectly connected with, can be connection inside device or element.To ability
For field technique personnel, according to the concrete meaning of the apparent above-mentioned term of the embodiment of the present application concrete condition in the embodiment of the present application.
In the description of the embodiment of the present application, term "and/or", only it is a kind of describe affiliated partner incidence relation,
Indicate may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, individualism B this
Three kinds of situations.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
, should be apparent in the description of the embodiment of the present application, for simple and clear purpose, the principle of the embodiment of the present application
It is described by referring mainly to example, in the following description, many details of the embodiment of the present application are described to be used to mention
For a thorough understanding of embodiments, but to those skilled in the art, the embodiment of the present application is not limited to correlation in practice
Detail；In some embodiments, it is not described in known features and/or method, to avoid causing these embodiments difficult
To understand.
[embodiment 1]
Referring to Figure of description, can it is complete, one of clearly articulating the embodiment of the present application, novel off-line type is reverse osmosis
The device structure and its working principle of Membrane cleaning equipment and its cleaning process.
Wherein, in fig. 1:
The embodiment of the present application provides a kind of novel off-line type cleaning equipment for reverse osmosis membrane, wherein includes: cleaning solution supply
Portion 1, the cleaning solution supply department 1 is for supplying cleaning solution；Cleaning part 2, the cleaning part 2 connect the cleaning solution supply department 1,
The cleaning part 2 is for cleaning reverse osmosis membrane.
Based on identical inventive concept, the embodiment of the present application also provides a kind of cleaning processes, wherein includes: cleaning solution
Supply, the cleaning solution supply department 1 supply reverse osmosis membrane cleaning solution；Reverse osmosis membrane cleaning, the cleaning part 2 cleans reverse osmosis
Film.
A kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process of the embodiment of the present application, by using including
The reverse osmosis cleaning equipment of the novel off-line type of cleaning solution supply department 1 and cleaning part 2 and its cleaning process, wherein cleaning process include
Cleaning solution supplies step and cleaning step, and solving on-line cleaning mode in the prior art causes cleaning solution cleaning reverse osmosis system
During system, cleaning process is very long, and cleaning solution is in the process of cleaning, and effective component can gradually decrease, and lead to clenaing effect
It reduces, so as to cause cleaning effect decline；Meanwhile mixing from the pollutant that front end reverse osmosis membrane assembly washes down in cleaning solution
In, cause secondary dirt stifled the reverse osmosis membrane assembly of rear end, and the reverse osmosis membrane assembly of rear end is originally compared with the reverse osmosis membrane of front end
Component pollution is more serious, therefore the technical issues of further result in the reverse osmosis membrane assembly cleaning effect degradation of rear end, takes
Shortening clean-up process was obtained, ensures cleaning solution effective component, clenaing effect is promoted, the technical effect of cleaning effect enhancing.
Further,
Wherein, in fig 2:
The cleaning solution supply department 1 includes: cleaning solution medicine-chest 11, and the cleaning solution medicine-chest 11 is for storing buffering cleaning
Liquid；Flushing water pump 12, described 12 one end of flushing water pump connect the cleaning solution medicine-chest 11, and the cleaning pump 12 is used for cleaning solution
It is pumped into the cleaning part 2；Cartridge filter 13,12 other end of flushing water pump connect the cartridge filter 13, the guarantor
Peace filter 13 connects the cleaning part 2, and the cartridge filter 13 is for filtering cleaning solution.
The cleaning part 2 includes: water inlet line 21, and the water inlet line 21 connects the cleaning solution supply department 1, it is described into
Waterpipe 21 is for conveying cleaning solution；Washer 22, the washer 22 are connect with the water inlet line 21, the washer 22
For cleaning reverse osmosis membrane；Concentrated water pipeline 23, the concentrated water pipeline 23 connect the washer 22, and the concentrated water pipeline 23 is used for
The washer 22 is discharged and cleans the concentrated water after reverse osmosis membrane；Water purification pipeline 24, the water purification pipeline 24 connect the washer
22, the water purification pipeline 24 is used to be discharged the washer 22 and cleans the water purification after reverse osmosis membrane.
The washer cleans mathematical model are as follows:
Qs=B × (Cm-Cp)
In formula:
QwFor through water flux, A is that water penetrates the factor, PfFor water supply lateral pressure, Δ PfcPoor, the π for whole story end pressuremFor to
Water side surface osmotic pressure, πpTo produce water side osmotic pressure,
QsFor through flux salt, B is that salt penetrates the factor, CmFor feedwater side surface salinity, CpTo produce water side salinity.
The cleaning solution supplies step specifically: feeds cleaning solution in the cleaning solution medicine-chest 11, by the cleaning solution
Cleaning solution, is then pumped into the cartridge filter 13 by the flushing water pump 12, by institute by the storage buffering cleaning solution of medicine-chest 11
It states after cartridge filter 13 is filtered cleaning solution, then cleaning solution is fed into the cleaning part 2, i.e., via the water inlet line
21 feed cleaning solution in the washer 22.
The reverse osmosis membrane cleaning step specifically: reverse osmosis membrane to be cleaned is fitted into the washer 22, by institute
The cleaning solution for stating the infeed of cleaning solution supply department 1 is fed in the washer 22 via water inlet line 21, wherein the washer 22
Quantity is 2 or more and is arranged in parallel that is, cleaning solution is fed separately into each washer and cleans to reverse osmosis membrane therein,
After cleaning, cleaning solution is divided into water purification and concentrated water and is discharged respectively by water purification pipeline 24 and concentrated water pipeline 23.
Mathematical model is cleaned in the washer parallel connection are as follows:
In formula:
Qpi、Qpi+1For through water flux, AiThe factor, P are penetrated for waterfFor water supply lateral pressure, CfFor constant, fA() is known
Function, Qfi、Qfi+1For known variables,
QsiFor through flux salt, BiThe factor, k are penetrated for salt1i、k1i+1、k2i、k2i+1For the normal of characterization concentrated water drag characteristics
Number, fB() is known function, and Y is constant.
Wherein, in fig. 3:
The cleaning part 2 further include: pressure gauge 1, the pressure gauge 1 are arranged on the water inlet line 21, institute
Pressure gauge 1 is stated for detecting and showing the pressure in the water inlet line 21.The cleaning part 2 further include: pressure gauge two
26, the pressure gauge 2 26 is arranged on the concentrated water pipeline 23, and the pressure gauge 2 26 is for detecting and showing the concentrated water
Pressure in pipeline 23；Control valve 27, the control valve 27 are arranged on the concentrated water pipeline 23, the control valve 27
For adjusting the flow of the concentrated water pipeline 23 so as to adjust the pressure in the concentrated water pipeline 23.The cleaning part 2 further include:
Flowmeter 28, the flowmeter 28 are arranged in the water purification pipeline 24, and the flowmeter 28 is described net for detecting and showing
Flow in waterpipe 24.
The cleaning process further include: adjust cleaning effect, according to the pressure gauge 1 and the pressure gauge 2 26 and
The numerical value of the flowmeter 28 adjusts the control valve 27, adjusts the pressure of the water inlet line 21 and the concentrated water pipeline 23
Power, so as to adjust the flow of the water purification pipeline 24, to adjust the cleaning effect of the novel off-line type cleaning equipment.
A kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process of the embodiment of the present application, by using including
The novel off-line type cleaning equipment for reverse osmosis membrane of cleaning solution supply department 1 and cleaning part 2, wherein cleaning solution supply department 1 includes cleaning
Liquid medicine-chest 11, flushing water pump 12, cartridge filter 13, and by pipeline by cleaning solution medicine-chest 11, flushing water pump 12, cartridge filter
13 are sequentially connected, and cleaning part 2 includes water inlet line 21, washer 22, concentrated water pipeline 23, water purification pipeline 24, and washer 22 counts
Amount is at least two and is arranged in parallel, meanwhile, it is provided with pressure gauge 1 on water inlet line 21, is provided on concentrated water pipeline 23
Pressure gauge 2 26 and control valve 27 are provided with flowmeter 28 in water purification pipeline 24, according to pressure gauge 1 and pressure gauge 2 26
And the value of flowmeter 28, control valve 27 is adjusted on demand, adjusts the flow of water inlet line 21 and concentrated water pipeline 23, to adjust net
The flow of waterpipe 24 adjusts cleaning effect；The technical solution of the embodiment of the present application also by using include cleaning solution supply and
The cleaning process of reverse osmosis membrane cleaning step feeds cleaning solution in the cleaning solution medicine-chest 11, by the cleaning solution medicine-chest
Cleaning solution, is then pumped into the cartridge filter 13 by the flushing water pump 12, by the guarantor by 11 storage buffering cleaning solutions
After peace filter 13 is filtered cleaning solution, then cleaning solution fed into the clear of the cleaning part 2 via the water inlet line 21
Device 22 is washed, reverse osmosis membrane to be cleaned is fitted into the washer 22, is passed through by the cleaning solution that the cleaning solution supply department 1 feeds
It is fed in the washer 22 by water inlet line 21, wherein 22 quantity of the washer is 2 or more and is arranged in parallel, that is, is cleaned
Liquid is fed separately into each washer 22 and cleans to reverse osmosis membrane therein, and after cleaning, cleaning solution is divided into water purification and concentrated water
And be discharged respectively by water purification pipeline 24 and concentrated water pipeline 23, during cleaning, according to the pressure gauge 1 and the pressure
The numerical value of power table 2 26 and the flowmeter 28 adjusts the control valve 27, adjusts the water inlet line 21 and the concentrated water
The pressure of pipeline 23, so as to adjust the flow of the water purification pipeline 24, to adjust the clear of the novel off-line type cleaning equipment
Wash effect；The technical solution of the embodiment of the present application, which solves on-line cleaning mode in the prior art, causes cleaning solution in cleaning reverse osmosis
During permeable system, cleaning process is very long, and cleaning solution is in the process of cleaning, and effective component can gradually decrease, and cause to clean
Efficiency reduces, so as to cause cleaning effect decline；Meanwhile mixing from the pollutant that front end reverse osmosis membrane assembly washes down in clear
In washing lotion, cause secondary dirt stifled the reverse osmosis membrane assembly of rear end, and the reverse osmosis membrane assembly of rear end is originally compared with the reverse osmosis of front end
The pollution of permeable membrane component is more serious, therefore the technology for further resulting in the reverse osmosis membrane assembly cleaning effect degradation of rear end is asked
Topic achieves shortening cleaning process, ensures cleaning solution effective component, and clenaing effect is promoted, the technical effect of cleaning effect enhancing.
Further, the relevant technologies effect can be proved by following experiments data:
Each experimental data of offline cleaning front and back is carried out such as to reverse osmosis membrane using the technical solution in the embodiment of the present application
Under:
Situation before certain reverse osmosis equipment cleans:
| Project | Pressure (MPa) | Water (t/h) | Conductance (us/cm) |
| 1# reverse osmosis produced water | Feed water by reverse osmosis 1.5 | 50~62 | 120 |
| 2# reverse osmosis concentrated water | Concentrated water pressure 1.0 | 32~38 | |
| 2# reverse osmosis produced water | Feed water by reverse osmosis 1.2 | 22~32 | 112 |
| 2# reverse osmosis concentrated water | Concentrated water pressure 1.0 | 4~7 |
Permeable membrane device (sampling) cleaning front and back parameter compares:
Situation after reverse osmosis equipment cleaning:
| Project | Pressure (MPa) | Water (t/h) | Conductance (us/cm) |
| 1# reverse osmosis produced water | Feed water by reverse osmosis 1.5 | 88~97 | 49.8 |
| 2# reverse osmosis concentrated water | Concentrated water pressure 1.0 | 18~27 | |
| 2# reverse osmosis produced water | Feed water by reverse osmosis 1.2 | 62~66 | 41 |
| 2# reverse osmosis concentrated water | Concentrated water pressure 1.0 | 4~6 |
Operating parameter before the reverse osmosis equipment cleans:
| Project | Average water yield | Rate of recovery % | Design raw water amount | Single ton of water consume t |
| 1#RO | 48m3/h | 45 | 120m3/h | 2.65 |
| 2#RO | 24m3/h | 32 | 80m3/h | 2.39 |
Operating parameter after reverse osmosis equipment cleaning:
| Project | Average water yield | Rate of recovery % | Design raw water amount | Single ton of water consume t |
| 1#RO | 92m3/h | 78 | 120m3/h | 1.38 |
| 2#RO | 63m3/h | 77 | 80m3/h | 1.01 |
Each experimental data for carrying out offline cleaning front and back to reverse osmosis membrane using other technologies scheme is as follows:
Situation before same reverse osmosis equipment cleans:
| Project | Pressure (MPa) | Water (t/h) | Conductance (us/cm) |
| 1# reverse osmosis produced water | Feed water by reverse osmosis 1.5 | 50~62 | 120 |
| 2# reverse osmosis concentrated water | Concentrated water pressure 1.0 | 32~38 | |
| 2# reverse osmosis produced water | Feed water by reverse osmosis 1.2 | 22~32 | 112 |
| 2# reverse osmosis concentrated water | Concentrated water pressure 1.0 | 4~7 |
Permeable membrane device (sampling) cleaning front and back parameter compares:
Situation after reverse osmosis equipment cleaning:
| Project | Pressure (MPa) | Water (t/h) | Conductance (us/cm) |
| 1# reverse osmosis produced water | Feed water by reverse osmosis 1.5 | 81~93 | 55.6 |
| 2# reverse osmosis concentrated water | Concentrated water pressure 1.0 | 22~33 | |
| 2# reverse osmosis produced water | Feed water by reverse osmosis 1.2 | 53~59 | 57 |
| 2# reverse osmosis concentrated water | Concentrated water pressure 1.0 | 4~5 |
Operating parameter before the reverse osmosis equipment cleans:
| Project | Average water yield | Rate of recovery % | Design raw water amount | Single ton of water consume t |
| 1#RO | 48m3/h | 45 | 120m3/h | 2.65 |
| 2#RO | 24m3/h | 32 | 80m3/h | 2.39 |
Operating parameter after reverse osmosis equipment cleaning:
| Project | Average water yield | Rate of recovery % | Design raw water amount | Single ton of water consume t |
| 1#RO | 87m3/h | 74 | 120m3/h | 1.98 |
| 2#RO | 57m3/h | 73 | 80m3/h | 1.67 |
Via experimental data it is found that being cleaned offline using the technical solution in the embodiment of the present application to reverse osmosis membrane,
With same parameter before cleaning, reverse osmosis produced water and water quality have all reached preferable effect, and with other technologies side
Case experimental data can be derived from the technical solution in the embodiment of the present application and achieve guarantee cleaning solution effective component, cleaning compared to pair
Enhancing efficiency, the technical effect of cleaning effect enhancing.
Although being described above to the being illustrated property of specific embodiment of the application, in order to those skilled in the art
It will be appreciated that the application, but the application is not limited only to the range of specific embodiment, to those skilled in the art
For, as long as various change is in the application spirit and scope that the attached claims limit and determine, all utilize this Shen
The innovation and creation that please be conceived are in the column of protection.
Claims (11)
1. a kind of novel off-line type cleaning equipment for reverse osmosis membrane, wherein include:
Cleaning solution supply department,
Cleaning part, the cleaning part connect the cleaning solution supply department, and the cleaning part includes:
Water inlet line, the water inlet line connect the cleaning solution supply department；
Washer, the washer are connect with the water inlet line；
Concentrated water pipeline, the concentrated water pipeline connect the washer.
Water purification pipeline, the water purification pipeline connect the washer.
2. a kind of novel off-line type cleaning equipment for reverse osmosis membrane according to claim 1, wherein the cleaning solution supply department
Include:
Cleaning solution medicine-chest, the cleaning medicine-chest are made of the big material of resistance to pH range；
Flushing water pump, described flushing water pump one end connect the cleaning solution medicine-chest.
Cartridge filter, the flushing water pump other end connect the cartridge filter, and the cartridge filter connection is described clear
Wash portion.
3. a kind of novel off-line type cleaning equipment for reverse osmosis membrane according to claim 1, wherein the washer cleans number
Learn model are as follows:
Qs=B × (Cm-Cp)
In formula:
QwFor through water flux, A is that water penetrates the factor, PfFor water supply lateral pressure, Δ PfcPoor, the π for whole story end pressuremFor feedwater side
Surface penetration pressure, πpTo produce water side osmotic pressure,
QsFor through flux salt, B is that salt penetrates the factor, CmFor feedwater side surface salinity, CpTo produce water side salinity.
4. a kind of novel off-line type cleaning equipment for reverse osmosis membrane according to claim 1, wherein the washer quantity is
It at least two and is arranged in parallel.
5. a kind of novel off-line type cleaning equipment for reverse osmosis membrane according to claim 1, wherein the cleaning part also wraps
It includes:
Pressure gauge one, the pressure gauge one are arranged on the water inlet line.
6. a kind of novel off-line type cleaning equipment for reverse osmosis membrane according to claim 1, wherein the cleaning part also wraps
It includes:
Pressure gauge two, the pressure gauge two are arranged on the concentrated water pipeline；
Control valve, the control valve are arranged on the concentrated water pipeline.
7. a kind of novel off-line type cleaning equipment for reverse osmosis membrane according to claim 1, wherein the cleaning part also wraps
It includes:
Flowmeter, the flowmeter are arranged in the water purification pipeline.
8. a kind of novel off-line type cleaning equipment for reverse osmosis membrane according to claim 4, wherein the washer is in parallel clear
Wash mathematical model are as follows:
In formula:
Qpi、Qpi+1For through water flux, AiThe factor, P are penetrated for waterfFor water supply lateral pressure, CfFor constant, fA() is known function,
Qfi、Qfi+1For known variables,
QsiFor through flux salt, BiThe factor, k are penetrated for salt1i、k1i+1、k2i、k2i+1For the constant for characterizing concentrated water drag characteristics, fB
() is known function, and Y is constant.
9. a kind of reverse osmosis membrane cleaning process, applied to a kind of any novel off-line type reverse osmosis membrane of claim 1 to 8
Cleaning equipment, wherein include:
Cleaning solution supply, the cleaning solution supply department supply reverse osmosis membrane cleaning solution；
Reverse osmosis membrane cleaning, the cleaning part clean reverse osmosis membrane, the reverse osmosis membrane cleaning step specifically:
Reverse osmosis membrane to be cleaned is fitted into the washer, the cleaning solution fed by the cleaning solution supply department is via water inlet
Pipeline is fed in the washer, wherein the washer quantity is 2 or more and is arranged in parallel that is, cleaning solution is fed separately into respectively
Reverse osmosis membrane therein is cleaned in a washer, after cleaning, cleaning solution is discharged by water purification pipeline and concentrated water pipeline respectively.
10. a kind of cleaning process according to claim 9, wherein the cleaning solution supplies step specifically:
Cleaning solution is fed in the cleaning solution medicine-chest, buffering cleaning solution is stored by the cleaning solution medicine-chest, then by described clear
Cleaning solution is pumped into the cartridge filter by wash water pump, after being filtered by the cartridge filter to cleaning solution, then will be clear
Washing lotion feeds the cleaning part.
11. a kind of cleaning process according to claim 9, wherein the cleaning process further include:
It adjusts cleaning effect and the tune is adjusted according to the numerical value of the pressure gauge one and the pressure gauge two and the flowmeter
Valve is saved, the pressure of the water inlet line and the concentrated water pipeline is adjusted, to adjust the novel off-line type cleaning equipment
Cleaning effect.
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| CN201811461998.XA CN109621730A (en) | 2018-11-30 | 2018-11-30 | A kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process |
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| CN201811461998.XA CN109621730A (en) | 2018-11-30 | 2018-11-30 | A kind of novel off-line type cleaning equipment for reverse osmosis membrane and its cleaning process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113797760A (en) * | 2021-09-06 | 2021-12-17 | 上海开能新技术工程有限公司 | Chemical cleaning device and cleaning method for reverse osmosis membrane |
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| CN101934199A (en) * | 2010-06-13 | 2011-01-05 | 北京科泰兴达高新技术有限公司 | Offline reverse osmosis membrane cleaning equipment |
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| JPH08229554A (en) * | 1995-02-28 | 1996-09-10 | Toshiba Corp | Device for controlling operation of reverse-osmosis membrane water generating plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113797760A (en) * | 2021-09-06 | 2021-12-17 | 上海开能新技术工程有限公司 | Chemical cleaning device and cleaning method for reverse osmosis membrane |
| CN113797760B (en) * | 2021-09-06 | 2024-02-09 | 上海开能新技术工程有限公司 | Chemical cleaning device and cleaning method for reverse osmosis membrane |
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