CN209161565U - A kind of accurate dosing cleaning system of reverse osmosis membrane - Google Patents
A kind of accurate dosing cleaning system of reverse osmosis membrane Download PDFInfo
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- CN209161565U CN209161565U CN201821807743.XU CN201821807743U CN209161565U CN 209161565 U CN209161565 U CN 209161565U CN 201821807743 U CN201821807743 U CN 201821807743U CN 209161565 U CN209161565 U CN 209161565U
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Abstract
The utility model relates to a kind of accurate dosing cleaning systems of reverse osmosis membrane, are made of chemicals dosing plant and off-line cleaning device two parts；Automatic medicine adding apparatus includes acid and alkaline cleaning fluid tank, acid-proof pump, lye pump, PLC control cabinet, PH meter, cleaning water tank, outlet pipe, drainpipe, master control opening valve, low pressure purge pump and high pressure cleaning pump；Cleaning water tank is provided with PH meter, the pH value that signal is reached PLC control cabinet, and PLC control button is used to be arranged in advance according to us by PH meter by transmission line, to control acid-proof pump and lye pump to cleaning case dosing.The utility model cleaning solution PH range according to as defined in film handbook, presets PH, and PLC control system automatically controls dosing pump according to cleaning solution PH and adds medicament, controls cleaning solution PH always in the range of setting, cleaning effect is made to be protected.Simple with structure, rationally, it is convenient to realize, Automatic Dosing is precisely controlled cleaning solution PH, and operation is simple, and cleaning is thorough, high-efficient, at low cost, and using effect is good, practical for design.
Description
Technical field
The utility model belongs to reverse osmosis membrane accurate dosing cleaning equipment technical field automatically, more particularly to a kind of reverse osmosis
The accurate dosing cleaning system of permeable membrane.
Background technique
Currently, reverse osmosis equipment is after operating normally a period of time, reverse-osmosis membrane element will receive may deposit in water supply
Suspended material or indissoluble substance pollution, the most common are calcium carbonate scale, calcium sulfate scale, metal oxidations in these pollutants
Object dirt, silicon deposits and organic or biogenic deposits.Therefore reverse osmosis membrane need to be cleaned periodically, and on-line cleaning often has
Such as medicament bias current, drug concentration add inaccuracy, membrane component cross contamination drawback, therefore offline cleaning is best selection,
In order to solve the above technical problems, it is necessory to provide a kind of off-line cleaning device of novel reverse osmosis membrane, to overcome existing skill
The defect in art.
The existing domestic producer for using reverse osmosis membrane, on-line cleaning technique after stopping production using membranous system, i.e. original machine are first stopped
It only feeds, changes cleaning solution and directly clean.When due to the no single branch membrane component detection function of counter-infiltration system itself, cleaning also not
Drug concentration can be accurately controlled according to pollution type and degree to every membrane component, and be that whole system string is together clear
It washes, therefore, cleaning effect is often had a greatly reduced quality, and especially blocks up serious membranous system to those dirts, and on-line cleaning is easier to occur
Biased flow phenomenon, cleaning effect are even more to be difficult to ensure.
Existing reverse osmosis cleaning device is single to reverse osmosis cleaning way, and cleaning effect is poor, and cleaning solution PH cannot be tight
Lattice install the range that film handbook requires, and cause PH too high or too low, wait many drawbacks, cause the service life of reverse osmosis membrane short.
Summary of the invention
The utility model is to solve technical problem present in well-known technique and to provide a kind of structure simple, design rationally,
It is convenient to realize, Automatic Dosing is precisely controlled cleaning solution PH, and operation is simple, and cleaning is thorough, high-efficient, at low cost, uses effect
Fruit is good, practical, convenient for a kind of reverse osmosis membrane cleaning system of popularization and use.
The utility model is adopted the technical scheme that solve technical problem present in well-known technique:
A kind of accurate dosing cleaning system of reverse osmosis membrane, including chemicals dosing plant and off-line cleaning device, it is characterised in that: institute
State chemicals dosing plant include acidic cleaning solution tank and alkaline cleaning fluid tank, acid-proof pump, lye pump, for controlling acid-proof pump, lye pump
The PLC control cabinet of action state, PH meter；The off-line cleaning device includes cleaning water tank, outlet pipe, drainpipe, master control unlatching
Valve, low pressure purge pump and high pressure cleaning pump；Cleaning case is provided with PH meter, and signal is reached PLC control cabinet by transmission line by PH meter；
Outlet pipe is equipped in the side close to cleaning water tank bottom and is equipped with drainpipe in the bottom of water tank, is equipped on the drainpipe
Drain valve；Master control opening valve is installed on the outlet pipe；The output end of the outlet pipe is parallel with low pressure purge pump and high pressure
Cleaning pump；The first water inlet control valve and first are respectively equipped in the inlet and outlet of low pressure purge pump and high pressure cleaning pump
Raw water control valve；Filter is connected in the output end of low pressure purge pump and the first raw water control valve of high pressure cleaning pump and is led directly to
Circuit is respectively equipped with the second water inlet control valve and the second raw water control valve at the both ends of filter, is equipped on straight circuit
Third raw water control valve, the second raw water control valve and third raw water control valve connect raw water general pipeline, and the raw water general pipeline is equipped with
4th raw water control valve, the output end of the 4th raw water control valve are parallel with raw water branch and concentrated water branch and concentrated water cleaning branch
Road, the raw water branch road are equipped with the raw water pressure gauge of detection raw water pressure, and the raw water branch road is parallel with several raw waters
Branch pipe, the 5th raw water control valve is mounted on each raw water branch pipe, and the 5th raw water control valve connects reverse osmosis membrane assembly
Raw water mouth, the reverse osmosis membrane assembly the production mouth of a river connection produce supply mains, the productions supply mains be equipped with production water ga(u)ge, institute
The output end connection return pipe for producing water ga(u)ge is stated, the return pipe connects water tank；The concentrated water spout of the reverse osmosis membrane assembly connects
Concentrated water general pipeline is met, the concentrated water pressure gauge of detection concentrated water pressure is installed on the concentrated water general pipeline, the is installed on the concentrated water general pipeline
One concentrated water control valve connects concentrated water branch, the output end of the first concentrated water control valve in the water inlet of the first concentrated water control valve
Concentrated water return pipe is connected, concentrated water flowmeter is installed, the concentrated water return pipe connects water tank, above-mentioned on the concentrated water return pipe
The entrance of concentrated water flowmeter the second concentrated water control valve is installed.
The utility model can also use following technical measures:
There are two the production water ga(u)ge is set side by side.
On-line period mouth is equipped at the production water ga(u)ge.
The preparatory equipment of cleaning solution PH, and dosing is carried out by PLC control dosing pump
The utility model has the advantages and positive effects of: the utility model has following excellent compared with prior art
Point:
1, the utility model structure is simple, and rationally, it is convenient and at low cost to realize for design.
2, operation is simple for the utility model, and operator only needs simple training can the individually operated entire cleaning of completion
Process.
3, the utility model can provide different cleaning solutions for the different pollution condition of reverse osmosis membrane, so as to
Keep the cleaning of reverse osmosis membrane more thorough, cleaning effect is more longlasting.
4, the utility model can select the dosages distribution of cleaning solution according to the pollution level of reverse osmosis membrane, save medicament,
Save cost.
5, the utility model can accurate dosing automatically, be not required to artificial dosing, can save manpower be avoided that again personnel grasp
It makes mistakes.
6, the utility model cleaning solution PH range according to as defined in film handbook presets PH, PLC control system root
Dosing pump is automatically controlled according to cleaning solution PH and adds medicament, is controlled cleaning solution PH always in the range of setting, is made cleaning effect
It is protected.
7, the reverse osmosis membrane cleaning efficiency of the utility model is high, will not introduce new pollutant, using effect is good, practicability
By force, convenient for popularization and use.
In conclusion the utility model structure is simple, rationally, it is convenient to realize, Automatic Dosing is precisely controlled cleaning solution for design
PH, operation is simple, and the cleaning of reverse osmosis membrane is thorough, high-efficient, at low cost, and using effect is good, practical, convenient for promoting
It uses.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the utility model principle figure.
In figure: 1, cleaning water tank；2, outlet pipe；3, drainpipe；4, master control opening valve；5, low pressure purge pumps；6, high pressure is clear
Wash pump；7, the first water inlet control valve；8, the first raw water control valve；9, filter；10, straight circuit；11, the second water inlet control
Valve；12, the second raw water control valve；13, third raw water control valve；14, raw water general pipeline；15, the 4th raw water control valve；16, raw water
Branch；16-1, raw water branch pipe；16-2, the 5th raw water control valve；17, concentrated water branch；18, concentrated water cleans branch；19, raw water pressure
Power table；20, reverse osmosis membrane assembly；21, supply mains is produced；22, water ga(u)ge is produced；23, return pipe；24, concentrated water general pipeline；25, concentrated water
Pressure gauge；26, the first concentrated water control valve；27, concentrated water branch；28, concentrated water return pipe；29, concentrated water flowmeter；30, the second concentrated water
Control valve；31, on-line period mouth；32, acidic cleaning solution tank；33, acid-proof pump；34, medicament pipeline；35, alkaline cleaning fluid tank, 36
Lye pump；37, dosing pump control line；38, PLC control cabinet；39, PLC control cabinet button；40, pH value transmission line；41, PH is counted
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing:
Please refer to Fig. 1 and Fig. 2, a kind of accurate dosing cleaning system of reverse osmosis membrane, by chemicals dosing plant and off-line cleaning device
Two parts are constituted, wherein the off-line cleaning device includes cleaning water tank 1, are equipped with close to the side of cleaning water tank bottom
Water pipe 2 is equipped with drainpipe 3 in the bottom of cleaning water tank, is equipped with drain valve on the drainpipe；It is installed on the outlet pipe
There is master control opening valve 4；The output end of the outlet pipe is parallel with acid-proof pump 5 and high pressure cleaning pump 6；In low pressure purge pump and high pressure
The first water inlet control valve 7 and the first raw water control valve 8 are respectively equipped in the inlet and outlet of cleaning pump；In acid-proof pump and height
It presses the output end of the first raw water control valve of cleaning pump to be connected with filter 9 and straight circuit 10, distinguishes at the both ends of filter
Equipped with the second water inlet control valve 11 and the second raw water control valve 12, third raw water control valve 13 is installed on straight circuit, the
Two raw water control valves connect raw water general pipeline 14 with third raw water control valve, and the raw water general pipeline is equipped with the 4th raw water control valve
15, the output end of the 4th raw water control valve is parallel with raw water branch 16 and concentrated water branch 17 and concentrated water cleaning branch 18, institute
The raw water pressure gauge 19 that raw water branch 16 is equipped with detection raw water pressure is stated, the raw water branch road is parallel with several raw water branch
Pipe 16-1, the 5th raw water control valve 16-2 is mounted on each raw water branch pipe, and the 5th raw water control valve connection is reverse osmosis
The raw water mouth of membrane module 20, the production mouth of a river connection of the reverse osmosis membrane assembly produce supply mains 21, and the production supply mains, which is equipped with, to be produced
Water ga(u)ge 22, the output end for producing water ga(u)ge connect return pipe 23, the return pipe connection cleaning water tank 1；It is described anti-
The concentrated water spout of permeable membrane element connects concentrated water general pipeline 24, and the concentrated water pressure gauge of detection concentrated water pressure is equipped on the concentrated water general pipeline
The first concentrated water control valve 26 is installed on 25, the concentrated water general pipeline, connects concentrated water branch 27 in the water inlet of the first concentrated water control valve,
The output end of the first concentrated water control valve connects concentrated water return pipe 28, is equipped with concentrated water flowmeter on the concentrated water return pipe
29, the concentrated water return pipe connects water tank 1, is equipped with the second concentrated water control valve 30, institute in the entrance of above-mentioned concentrated water flowmeter
It states to produce by water ga(u)ge and has on-line period mouth 31, the chemicals dosing plant is by acidic cleaning solution tank 32, acid-proof pump 33, medicament pipeline
34, alkaline cleaning fluid tank 35, alkaline-resisting tank 36, dosing pump control line 37, PLC control cabinet 38, PLC control cabinet button 39；PH value passes
Defeated line 40 and PH meter 41 are constituted, wherein medicament pipeline 34 is separately connected acid-proof pump 33 and lye pump 36；Acid-proof pump 33 and resistance to
Alkali pump connects PLC control cabinet 38 by dosing pump control line 37, and the PLC control cabinet connects PH by ph value transmission line 40 and counts,
The setting of PH meter is in cleaning water tank.
The utility model can also use following technical measures:
In order to be suitable for the demand of high pressure or low pressure operation, there are two the productions water ga(u)ge is set side by side, one of height
Pressure type flowmeter one is lowpressure stream meter, furthermore it is also possible to which the flowmeter of same specification is arranged, is played using same flowmeter
Double action, after one of damage, in the case where not out of service, only need to simply switch can normal use.
In order to understand in real time, the quality of water is produced, on-line period mouth 31 is equipped at the production water ga(u)ge, is improved in water
There are errors for water intaking in case.For realize cleaning when cleaning device can accurate dosing automatically, cleaning water tank be provided with PH meter, PH meter
The pH value that signal is reached PLC control cabinet by transmission line, and PLC control button is used to be arranged in advance according to us, sets when reaching
After fixed pH value, PLC control cabinet controls the dosing into cleaning case of acid-proof pump and lye pump, and above-mentioned control principle belongs to existing skill
Art.
The utility model is in actual use, it can be achieved that automatic accurate dosing, can be replenished in time pollution in the process of cleaning
Medicament consumed by object makes cleaning solution drug concentration remain setting value.It not only saves manually, the operation of people is also avoided to lose
Mistake and error.Cleaning process both can positive water inlet liquid can be reversed into water；Single branch circulation loop can mutually switch at any time, and
The variation of flow and pressure difference is observed at any time, and double pump industry can be switched over to prevent bias current and quick-fried film；It ties compared with prior art
Structure is simple, and design rationally, is realized conveniently and at low；And operation is simple, and operator only needs simple training independent
Entire cleaning process is completed in operation.The utility model can provide different cleaning sides for the different pollution condition of reverse osmosis membrane
Case, so as to keep the cleaning of reverse osmosis membrane more thorough, cleaning effect is more longlasting；The reverse osmosis membrane cleaning efficiency of the utility model
Height will not introduce new pollutant, and using effect is good, practical, convenient for promoting the use of.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Basic operation regulation and principle:
After the cleaned preceding weighing test of the membrane component for needing to clean, load into the putamina of this cleaning device.First into
Row washes preceding data test, comprising: water yield, salt rejection rate and membrane component pressure difference.Method is original needed for test is added in cleaning water tank
Water opens low pressure purge pump, adjusts test pressure by concentrated water control valve, after numerical stability, reads data and keeps a record.So
After cleaned, after PH needed for PLC control cabinet button settings cleaning solution, acidproof or lye pump be would automatically turn on, toward clear
Acid or alkaline cleaner is added in tank-washer, opens simultaneously low pressure purge pump cleaning, it is resistance to when cleaning solution reaches set PH
Acid or lye pump will stop, and with the consumption of cleaning process Chinese medicine, when cleaning solution PH is raised or lowered in cleaning water tank
When more than set numberical range, acidproof or lye pump can be again turned on until reach set PH it is online when closing, such as
This is reciprocal.Stop PLC control system after cleaning, tested again after being rinsed to membrane component and records data.
Application example:
Tianjin factory has a set of counter-infiltration system to be tested, the pre-treatment basic procedure of the system are as follows: tap water+sand is considered
→ UV (ultraviolet light, dechlorination function) → cartridge filter → counter-infiltration system, reverse osmosis membrane are Tao Shi BW30-365.
The counter-infiltration system after operating normally six months, reverse-osmosis membrane element by suspended matter present in water supply or
The case where pollution of difficulty soluble salt causes the decline of system water yield, and pressure drop increases, and salt rejection rate reduces.Therefore it needs to remove membrane element
Part is cleaned offline, we clean the membrane component offline with this cleaning device, and test result is as follows for cleaning front and back:
Test condition: test pressure 10kgf/cm2, test temperature 20, test water power lead 800us/cm.
The change of the single branch film properties in cleaning front and back mainly has the following aspects:
(1) water yield improves 40% or more, and some membrane components improve bigger；
(2) salt rejection rate of single branch film increases, but slightly has difference to different film recovery extents, this and pollution level have
It closes；
(3) pressure drop of monofilm has more apparent decline, and especially seriously polluted film fall is bigger
Conclusion: from, as can be seen that membrane component is after the cleaning of this cleaning device, all data of film obtains in above-mentioned data
Preferable recovery, cleaning effect are more satisfactory.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (3)
1. a kind of accurate dosing cleaning system of reverse osmosis membrane, including chemicals dosing plant and off-line cleaning device, it is characterised in that: described
Chemicals dosing plant includes acidic cleaning solution tank and alkaline cleaning fluid tank, acid-proof pump, lye pump, dynamic for controlling acid-proof pump, lye pump
Make PLC control cabinet, the PH meter of state；The off-line cleaning device include cleaning water tank, outlet pipe, drainpipe, master control opening valve,
Low pressure purge pump and high pressure cleaning pump；Cleaning case is provided with PH meter, and signal is reached PLC control cabinet by transmission line by PH meter；?
Outlet pipe is equipped with close to the side of cleaning water tank bottom and is equipped with drainpipe in the bottom of water tank, is equipped with and is let out on the drainpipe
Water valve；Master control opening valve is installed on the outlet pipe；The output end of the outlet pipe is parallel with low pressure purge pump and high pressure is clear
Wash pump；The first water inlet control valve and the first original are respectively equipped in the inlet and outlet of low pressure purge pump and high pressure cleaning pump
Water control valve；Filter is connected in the output end of low pressure purge pump and the first raw water control valve of high pressure cleaning pump and is led directly to back
Road is respectively equipped with the second water inlet control valve and the second raw water control valve at the both ends of filter, and is equipped on straight circuit
Three raw water control valves, the second raw water control valve and third raw water control valve connect raw water general pipeline, and the raw water general pipeline is equipped with the
Four raw water control valves, the output end of the 4th raw water control valve are parallel with raw water branch and concentrated water branch and concentrated water cleaning branch
Road, the raw water branch road are equipped with the raw water pressure gauge of detection raw water pressure, and the raw water branch road is parallel with several raw waters
Branch pipe, the 5th raw water control valve is mounted on each raw water branch pipe, and the 5th raw water control valve connects reverse osmosis membrane assembly
Raw water mouth, the reverse osmosis membrane assembly the production mouth of a river connection produce supply mains, the productions supply mains be equipped with production water ga(u)ge, institute
The output end connection return pipe for producing water ga(u)ge is stated, the return pipe connects water tank；The concentrated water spout of the reverse osmosis membrane assembly connects
Concentrated water general pipeline is met, the concentrated water pressure gauge of detection concentrated water pressure is installed on the concentrated water general pipeline, the is installed on the concentrated water general pipeline
One concentrated water control valve connects concentrated water branch, the output end of the first concentrated water control valve in the water inlet of the first concentrated water control valve
Concentrated water return pipe is connected, concentrated water flowmeter is installed, the concentrated water return pipe connects water tank, above-mentioned on the concentrated water return pipe
The entrance of concentrated water flowmeter the second concentrated water control valve is installed.
2. the accurate dosing cleaning system of reverse osmosis membrane according to claim 1, it is characterised in that: the production water ga(u)ge is simultaneously
There are two column are set.
3. the accurate dosing cleaning system of reverse osmosis membrane according to claim 1, it is characterised in that: at the production water ga(u)ge
Equipped with on-line period mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821807743.XU CN209161565U (en) | 2018-11-02 | 2018-11-02 | A kind of accurate dosing cleaning system of reverse osmosis membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821807743.XU CN209161565U (en) | 2018-11-02 | 2018-11-02 | A kind of accurate dosing cleaning system of reverse osmosis membrane |
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| Publication Number | Publication Date |
|---|---|
| CN209161565U true CN209161565U (en) | 2019-07-26 |
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ID=67336590
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821807743.XU Active CN209161565U (en) | 2018-11-02 | 2018-11-02 | A kind of accurate dosing cleaning system of reverse osmosis membrane |
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| Country | Link |
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| CN (1) | CN209161565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114229959A (en) * | 2021-12-17 | 2022-03-25 | 湖南军信环保股份有限公司 | Movable automatic dosing device and control method thereof |
| CN115138218A (en) * | 2022-08-11 | 2022-10-04 | 鲁泰纺织股份有限公司 | Offline reverse osmosis membrane cleaning system |
-
2018
- 2018-11-02 CN CN201821807743.XU patent/CN209161565U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114229959A (en) * | 2021-12-17 | 2022-03-25 | 湖南军信环保股份有限公司 | Movable automatic dosing device and control method thereof |
| CN114229959B (en) * | 2021-12-17 | 2023-06-06 | 湖南军信环保股份有限公司 | Movable automatic dosing device and control method thereof |
| CN115138218A (en) * | 2022-08-11 | 2022-10-04 | 鲁泰纺织股份有限公司 | Offline reverse osmosis membrane cleaning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A precise dosing and cleaning system for reverse osmosis membranes Effective date of registration: 20230808 Granted publication date: 20190726 Pledgee: Bank of Beijing Limited by Share Ltd. Tianjin branch Pledgor: TIANJIN KUNPENG CHEMICAL TECHNOLOGY Co.,Ltd. Registration number: Y2023980051238 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |