CN206308134U - Reverse osmosis membrane fouling slowing device - Google Patents
Reverse osmosis membrane fouling slowing device Download PDFInfo
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- CN206308134U CN206308134U CN201621459120.9U CN201621459120U CN206308134U CN 206308134 U CN206308134 U CN 206308134U CN 201621459120 U CN201621459120 U CN 201621459120U CN 206308134 U CN206308134 U CN 206308134U
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- water
- antisludging agent
- reverse osmosis
- plc
- osmosis membrane
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Abstract
The utility model discloses a kind of reverse osmosis membrane fouling slowing device, including PLC, demineralizer, water producing pipe and antisludging agent medicating mechanism；On water producing pipe automatic valve and water hardness on-line checking meter are sequentially provided with along water (flow) direction；Demineralizer is connected by automatic valve with water producing pipe；Automatic valve and water hardness on-line checking meter are connected with PLC respectively；Antisludging agent medicating mechanism includes antisludging agent case, suction line, disengages pipe and measuring pump；Measuring pump is connected with PLC.The utility model is carried out real-time monitoring and sends PLC to using water hardness on-line checking meter to the water hardness that goes out of demineralizer, when going out the water hardness and being undesirable, be added to antisludging agent in the water producing pipe by PLC control antisludging agent medicating mechanism, the water hardness is reduced, reverse osmosis membrane fouling is prevented.
Description
Technical field
The utility model is related to water-treatment technology field, more particularly to a kind of reverse osmosis membrane fouling slowing device.
Background technology
Counter-infiltration system is the major part of pure water production line, is widely used in the neck such as drinking water, direct drinking, filling pure water
Domain.The basic functional principle of counter-infiltration is：With special high-pressure hydraulic pump, raw water is added into 6-20kg pressure, make raw water in pressure
The reverse osmosis membrane that aperture only has 0.0001 μm is penetrated in the presence of power.Chemical ion and bacterium, fungi, virion can not lead to
Cross, discharged with waste water, only allow hydrone of the volume less than 0.0001 μm and solvent to pass through.
The purpose of in-line coagulation is to improve water supply conditions, makes up to the inflow requirement of counter-infiltration system, so that
Protection counter-infiltration main frame, and extend the service life of reverse osmosis membrane.Carried out, it is necessary to be directed to different water quality in water treatment system
Pretreatment design, common pretreatment system includes more medium filter, charcoal filter and demineralizer.
Wherein, the Ca that demineralizer can be gone in water removal2+、Mg2+, product total hardness of water is less than 0.03mmol/L.But, it is soft
Changing the resin in device needs periodically to be regenerated using NaCl solution, and product water is undesirable during efficiency lost resin, can cause reverse osmosis membrane knot
Dirt, reduces reverse osmosis membrane service life.
Utility model content
The purpose of this utility model is to provide a kind of reverse osmosis membrane fouling slowing device, to solve in-line coagulation system
In system, during demineralizer efficiency lost resin, the requirement that product water does not meet counter-infiltration system causes reverse osmosis membrane fouling, reduces service life
Technical problem.
According to embodiment of the present utility model, there is provided a kind of reverse osmosis membrane fouling slowing device, including：
PLC, demineralizer, water producing pipe and antisludging agent medicating mechanism；
On the water producing pipe automatic valve and water hardness on-line checking meter are sequentially provided with along water (flow) direction；
The demineralizer is connected by the automatic valve with the water producing pipe；
The automatic valve and the water hardness on-line checking meter are connected with the PLC respectively；
The antisludging agent medicating mechanism includes antisludging agent case, suction line, disengages pipe and measuring pump；
The measuring pump is connected with the PLC；
One end of the suction line is connected with the suction side of the measuring pump, and the other end is stretched into the antisludging agent case, and
Interval is provided with between the bottom of the antisludging agent case；
The end of disengaging of described one end for disengaging pipe and the measuring pump connect, the other end by the side wall of the water producing pipe and
The water producing pipe connection.
Preferably, described device also includes regeneration salt box, regenerant salt suction line and regenerant salt effuser；
The regenerant salt suction line and the regenerant salt effuser are respectively positioned at the both sides of the demineralizer, the regenerant salt
One end of one end of suction line and the regenerant salt effuser is connected by the automatic valve with the demineralizer respectively；
The other end of the regenerant salt suction line is stretched into the regeneration salt box, and is set between the bottom for regenerating salt box
There is interval.
Preferably, described device also includes regenerant salt collecting tank；The other end of the regenerant salt effuser stretch into it is described again
Interval is provided with raw salt collecting tank and between the bottom of the regenerant salt collecting tank.
Preferably, the suction line stretches into one end of the antisludging agent case and is provided with suction nozzle.
Preferably, the suction nozzle is shaped as circular funnel-form.
Preferably, pressure gauge is additionally provided with the water producing pipe, the pressure gauge is located at the automatic valve and the water hardness
Between on-line checking meter.
From above technical scheme, the utility model provides a kind of reverse osmosis membrane fouling slowing device, including PLC controls
Device, demineralizer, water producing pipe and antisludging agent medicating mechanism；On the water producing pipe automatic valve and hydraulic are sequentially provided with along water (flow) direction
Degree on-line checking meter；The demineralizer is connected by the automatic valve with the water producing pipe；The automatic valve and the water hardness
On-line checking meter is connected with the PLC respectively；The antisludging agent medicating mechanism includes antisludging agent case, suction line, disengages
Pipe and measuring pump；The measuring pump is connected with the PLC；The suction side of one end of the suction line and the measuring pump
Connection, the other end is stretched into the antisludging agent case and is provided with interval between the bottom of the antisludging agent case；It is described to disengage the one of pipe
Hold and connected with the end of disengaging of the measuring pump, the other end is connected by the side wall of the water producing pipe with the water producing pipe.This practicality
It is new that is carried out by real-time monitoring and the PLC is sent to for the water hardness that goes out of the demineralizer using the water hardness on-line checking meter
Controller, when going out the water hardness and being undesirable, the PLC controls the antisludging agent medicating mechanism to add antisludging agent
To in the water producing pipe, the water hardness is reduced, prevent reverse osmosis membrane fouling.The reverse osmosis membrane fouling that the utility model is provided slows down dress
Put, can be in demineralizer efficiency lost resin, take reduces the measure of the water hardness immediately, is higher than counter-infiltration when demineralizer produces the water hardness
During the standard of system, the phenomenon of the reverse osmosis membrane fouling for causing.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Needed for the accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 is to be preferable to carry out a kind of reverse osmosis membrane fouling slowing device for exemplifying according to one；
Fig. 2 is to be preferable to carry out another reverse osmosis membrane fouling slowing device that exemplifies according to one.
Wherein, 1-PLC controllers, 2- demineralizers, 3- water producing pipes, 4- antisludging agent medicating mechanisms, 5- regeneration salt box, 6- regeneration
Salt suction line, 7- regenerant salt effusers, 8- regenerant salt collecting tanks, 31- automatic valves, 32- water hardness on-line checking meters, 33- pressure
Table, 41- antisludging agent casees, 42- suction lines, 43- disengages pipe, 44- measuring pumps, 45- suction nozzles.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clear, complete description, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
As shown in figure 1, the utility model embodiment provides a kind of reverse osmosis membrane fouling slowing device, including PLC controls
Device 1, demineralizer 2, water producing pipe 3 and antisludging agent medicating mechanism 4；
On the water producing pipe 3 automatic valve 31 and water hardness on-line checking meter 32 are sequentially provided with along water (flow) direction；
The demineralizer 2 is connected by the automatic valve 31 with the water producing pipe 3；
The automatic valve 31 and the water hardness on-line checking meter 32 are connected with the PLC 1 respectively；
The antisludging agent medicating mechanism 4 includes antisludging agent case 41, suction line 42, disengages pipe 43 and measuring pump 44；
The measuring pump 44 is connected with the PLC 1；
One end of the suction line 42 connects with the suction side of the measuring pump 44, and the other end stretches into the antisludging agent case 41
It is interior, and it is provided with interval between the bottom of the antisludging agent case 41；
Described one end for disengaging pipe 43 connects with the end of disengaging of the measuring pump 44, and the other end is by the water producing pipe 3
Side wall is connected with the water producing pipe 3.
Programmable logic controller (PLC) (Programmable Logic Controller, abbreviation PLC) is a kind of with micro-
The digital electronic device of processor, for the digital logic controller of Automated condtrol, can at any time load control instruction interior
Deposit interior storage and perform.Programmable Logic Controller is by innernal CPU, instruction and data internal memory, input-output unit, power supply module, number
The unit institute modularities such as type matrix plan are combined into.
PLC is widely used in current industrial control field.Before PLC appearance, typically to use
Hundreds of relay and counter could constitute the automated system with identical function, and present, by programming
Simple PLC module substantially instead of these large-scale plants.The system program of PLC is typically dispatching from the factory
It is preceding it is initialized finish, user can be different automatic according to meeting from the corresponding user program of edlin the need for oneself
Change production requirement.
Initial PLC only has the function that circuit logic is controlled, so it is named as programmable logic controller (PLC), after
Come with constantly development, these originally the simple computer module of function had including logic control, SECO, mould
Intend many functions such as control, multi-computer communication, title is also changed to Programmable Logic Controller (Programmable Controller),
But because writing a Chinese character in simplified form for it is also that PC mutually conflicts with writing a Chinese character in simplified form for PC (Personal Computer), also due to for many years
Use habit, people still continue to use this contracting of PLC still commonly using programmable logic controller (PLC) this address in term
Write.
Automatic valve refers to not need external force to drive, but makes the valve of valve event by the energy of medium itself.Such as
Safety valve, pressure-reducing valve, drain valve, check-valves, automatic regulating valve etc..
Measuring pump be it is a kind of can meet various strict technological process needs, flow can in the range of 0-100% nothing
Level regulation, for conveying a kind of liquid (particularly corrosive liquids) special displacement pump.Measuring pump is also referred to as constant displacement pump or proportioning pump.
Measuring pump belongs to reciprocating displacement pump, for accurate measurement, usually requires that the steady state accuracy of measuring pump is no more than ± 1%.
As modernization industry is continued to develop towards automation mechanized operation, this situation of far distance automatic controlling, the matching of measuring pump
By force, adapt to the extensive advantage of medium (liquid) and particularly seem outstanding.
The reverse osmosis membrane fouling slowing device of said structure is in operation principle：PLC 1 is sent out by automatic valve 31
Working signal is sent, is used to open automatic valve 31, the water from active carbon filter is flowed into demineralizer 2, the demineralizer 2 is soft
Water after change flows out through water producing pipe 3, and the water producing pipe 3 is provided with water hardness on-line checking meter 32, water hardness on-line checking meter
32 are connected with PLC 1, and water hardness on-line checking meter 32 carries out real-time detection to the water hardness in water producing pipe 3, and will detection
Result is transferred to PLC 1, and with the threshold value for pre-setting be compared testing result by the PLC 1, if inspection
Survey result and be less than 0.03mmol/L, then the control of the PLC 1 automatic valve 31 keeps current operating state, if detection knot
Fruit is more than or equal to 0.03mmol/L, then the PLC 1 sends signal to antisludging agent medicating mechanism 4, and the signal is used for
Control measuring pump 44 work, by suction line 42 by antisludging agent case 41 antisludging agent suck the pump housing, and by with the product water
The pipe 43 that disengages of pipe connection disengages, and the antisludging agent is used to reduce the water hardness in water producing pipe 3, makes to enter the water of counter-infiltration system
The requirement of counter-infiltration system can be met, it is to avoid or slow down the phenomenon of the reverse osmosis membrane fouling caused by the water hardness is unqualified and go out
It is existing, so as to extend the service life of reverse osmosis membrane.
Wherein, the opening degree or ratio of the automatic valve 31 by PLC 1 according to default water process amount and product
Water pipe footpath is calculated；The flow of the measuring pump 44 is exceeded the size and Shui Chu of threshold value by PLC 1 according to testing result
Flow velocity of reason amount or water producing pipe footpath and water etc. is calculated.
As described in Figure 2, the utility model embodiment provides another reverse osmosis membrane fouling slowing device, and shown in Fig. 1
Reverse osmosis membrane fouling slowing device, the reverse osmosis membrane fouling slowing device shown in Fig. 2 also includes on the basis of Fig. 1：
Regeneration salt box 5, regenerant salt suction line 6 and regenerant salt effuser 7；
The regenerant salt suction line 6 and the regenerant salt effuser 7 respectively positioned at the demineralizer 2 both sides, it is described again
One end of one end of raw salt suction line 6 and the regenerant salt effuser 7 is connected by the automatic valve 31 with the demineralizer 2 respectively
It is logical；
The other end of the regenerant salt suction line 6 stretch into it is described regeneration salt box 5 in, and with it is described regeneration salt box 5 bottom
Between be provided with interval.
Demineralizer 2 reduces the hardness of water by resin, so when resin is with failure long, need to be made using regenerative brine
Resin regeneration, continues the effectiveness for realizing reducing the water hardness, and the regenerative brine is generally certain density sodium chloride solution.Institute
State regenerative brine to be stored in regeneration salt box 5, water after water hardness on-line checking meter 32 softens demineralizer 2 is detected
When the testing result for obtaining is more than or equal to 0.03mmol/L, the one side of the PLC 1 is to the PLC 1 to resistance
Dirty agent medicating mechanism 4 sends signal, and the signal is used to control measuring pump 44 to work, and measuring pump 44 passes through suction line 42 by scale inhibition
The antisludging agent suction pump housing in agent case 41, and disengaged by the pipe 43 that disengages connected with the water producing pipe, the antisludging agent is used for
The water hardness in water producing pipe 3 is reduced, the water energy made into counter-infiltration system enough meets the requirement of counter-infiltration system；The resin is again
After life, automatic valve 31 is again released the regenerative brine in demineralizer 2 by regenerant salt effuser 7.On the other hand, the PLC
To the sending signal of the automatic valve 31, for controlling the automatic valve 31 to act, automatic valve 31 passes through the regenerant salt to controller 1
Be sucked into regenerative brine in demineralizer 2 by suction line 6, so that the resin regeneration in demineralizer 2, continues to realize reducing hydraulic
The effectiveness of degree.Testing result obtained by water after water hardness on-line checking meter 32 softens to demineralizer 2 is detected is less than
During 0.03mmol/L, the PLC 1 sends signal to antisludging agent medicating mechanism 4, and the signal is used to control measuring pump 44
It is stopped；
Preferably, described device also includes regenerant salt collecting tank 8；The other end of the regenerant salt effuser 7 stretches into described
Interval is provided with regenerant salt collecting tank 8 and between the bottom of the regenerant salt collecting tank 8.
After resin regeneration, the mistake that automatic valve 31 releases the regenerative brine in demineralizer 2 by regenerant salt effuser 7
Journey, hereinbefore by the agency of, repeats no more, however, further, the regenerant salt flowed out by regenerant salt effuser 7 is molten here
Liquid can flow directly into sewer or waste liquid pool, can be also collected using the regenerant salt collecting tank 8, reserve for other use.
Preferably, the suction line 42 stretches into one end of the antisludging agent case 41 and is provided with suction nozzle 45.
Preferably, the suction nozzle 45 is shaped as circular funnel-form.
Preferably, it is additionally provided with pressure gauge 33 on the water producing pipe 3, the pressure gauge 33 is located at the automatic valve 31 and described
Between water hardness on-line checking meter 32.The pressure gauge 33 is used to detect on the spot and show the product water pressure of demineralizer 2.
From above technical scheme, the utility model provides a kind of reverse osmosis membrane fouling slowing device, including PLC controls
Device 1, demineralizer 2, water producing pipe 3 and antisludging agent medicating mechanism 4；On the water producing pipe 3 automatic valve is sequentially provided with along water (flow) direction
31 and water hardness on-line checking meter 32；The demineralizer 2 is connected by the automatic valve 31 with the water producing pipe 3；It is described automatic
Valve 31 and the water hardness on-line checking meter 32 are connected with the PLC 1 respectively；The antisludging agent medicating mechanism 4 includes
Antisludging agent case 41, suction line 42, disengage pipe 43 and measuring pump 44；The measuring pump 44 is connected with the PLC 1；It is described
One end of suction line 42 connects with the suction side of the measuring pump 44, the other end stretch into the antisludging agent case 41 and with the resistance
Interval is provided between the bottom of dirty agent case 41；Described one end for disengaging pipe 43 connects with the end of disengaging of the measuring pump 44, the other end
Connected with the water producing pipe 3 by the side wall of the water producing pipe 3.The utility model utilizes the water hardness on-line checking meter 32 pairs
The water hardness that goes out of the demineralizer 2 carries out real-time monitoring and sends the PLC 1 to, undesirable when the water hardness is gone out
When, the PLC 1 controls the antisludging agent medicating mechanism 4 that antisludging agent is added in the water producing pipe 3, reduces hydraulic
Degree, prevents reverse osmosis membrane fouling.The reverse osmosis membrane fouling slowing device that the utility model is provided, can lose in the resin of demineralizer 2
During effect, take reduces the measure of the water hardness immediately, when it is higher than the standard of counter-infiltration system that demineralizer 2 produces the water hardness, causes
The phenomenon of reverse osmosis membrane fouling.
Those skilled in the art will readily occur to this practicality after considering specification and putting into practice utility model disclosed herein
Other new embodiments.The application is intended to any modification of the present utility model, purposes or adaptations, these
Modification, purposes or adaptations follow general principle of the present utility model and including undocumented skill of the utility model
Common knowledge or conventional techniques in art field.Description and embodiments be considered only as it is exemplary, it is of the present utility model
True scope and spirit are pointed out by following claim.
It should be appreciated that the utility model is not limited to the accurate knot for being described above and being shown in the drawings
Structure, and can without departing from the scope carry out various modifications and changes.Scope of the present utility model only will by appended right
Ask to limit.
Claims (6)
1. a kind of reverse osmosis membrane fouling slowing device, it is characterised in that including：PLC (1), demineralizer (2), water producing pipe
And antisludging agent medicating mechanism (4) (3)；
On the water producing pipe (3) automatic valve (31) and water hardness on-line checking meter (32) are sequentially provided with along water (flow) direction；
The demineralizer (2) is connected by the automatic valve (31) with the water producing pipe (3)；
The automatic valve (31) and the water hardness on-line checking meter (32) are connected with the PLC (1) respectively；
The antisludging agent medicating mechanism (4) including antisludging agent case (41), suction line (42), disengage pipe (43) and measuring pump (44)；
The measuring pump (44) is connected with the PLC (1)；
One end of the suction line (42) connects with the suction side of the measuring pump (44), and the other end stretches into the antisludging agent case
(41) in, and interval is provided with between the bottom of the antisludging agent case (41)；
Described one end for disengaging pipe (43) connects with the end of disengaging of the measuring pump (44), and the other end passes through the water producing pipe (3)
Side wall connected with the water producing pipe (3).
2. reverse osmosis membrane fouling slowing device according to claim 1, it is characterised in that described device also includes regenerant salt
Case (5), regenerant salt suction line (6) and regenerant salt effuser (7)；
The regenerant salt suction line (6) and the regenerant salt effuser (7) are described respectively positioned at the both sides of the demineralizer (2)
One end of one end of regenerant salt suction line (6) and the regenerant salt effuser (7) respectively by the automatic valve (31) with it is described
Demineralizer (2) is connected；
The other end of the regenerant salt suction line (6) is stretched into regeneration salt box (5), and with the bottom of regeneration salt box (5)
Interval is provided between portion.
3. reverse osmosis membrane fouling slowing device according to claim 2, it is characterised in that described device also includes regenerant salt
Collecting tank (8)；The other end of the regenerant salt effuser (7) stretch into the regenerant salt collecting tank (8) and with the regenerant salt
Interval is provided between the bottom of collecting tank (8).
4. reverse osmosis membrane fouling slowing device according to claim 1, it is characterised in that the suction line (42) stretches into institute
The one end for stating antisludging agent case (41) is provided with suction nozzle (45).
5. reverse osmosis membrane fouling slowing device according to claim 4, it is characterised in that suction nozzle (45) are shaped as
Circular funnel-form.
6. reverse osmosis membrane fouling slowing device according to claim 1, it is characterised in that also set on the water producing pipe (3)
There is pressure gauge (33), the pressure gauge (33) is between the automatic valve (31) and the water hardness on-line checking meter (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621459120.9U CN206308134U (en) | 2016-12-29 | 2016-12-29 | Reverse osmosis membrane fouling slowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621459120.9U CN206308134U (en) | 2016-12-29 | 2016-12-29 | Reverse osmosis membrane fouling slowing device |
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| Publication Number | Publication Date |
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| CN206308134U true CN206308134U (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621459120.9U Active CN206308134U (en) | 2016-12-29 | 2016-12-29 | Reverse osmosis membrane fouling slowing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110652883A (en) * | 2019-09-25 | 2020-01-07 | 金科环境股份有限公司 | Safety regulation and control system and method for adding reverse osmosis scale inhibitor |
-
2016
- 2016-12-29 CN CN201621459120.9U patent/CN206308134U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110652883A (en) * | 2019-09-25 | 2020-01-07 | 金科环境股份有限公司 | Safety regulation and control system and method for adding reverse osmosis scale inhibitor |
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