CN214141857U - Reverse osmosis concentrated water recycling system - Google Patents
Reverse osmosis concentrated water recycling system Download PDFInfo
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- CN214141857U CN214141857U CN202022283115.XU CN202022283115U CN214141857U CN 214141857 U CN214141857 U CN 214141857U CN 202022283115 U CN202022283115 U CN 202022283115U CN 214141857 U CN214141857 U CN 214141857U
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Abstract
The utility model discloses a reverse osmosis concentrated water recycling system, which comprises a circulation passage consisting of a recycling device, a recycling device and a tap water pool; the recovery device comprises a concentrated water recovery water tank and a concentrated water booster pump; the recycling device comprises a concentrated water reverse osmosis high-pressure pump, a concentrated water reverse osmosis unit, a pH on-line monitoring unit, an electric conductivity on-line monitoring unit and a residual chlorine on-line monitoring unit; the concentrated water booster pump is connected with the concentrated water reverse osmosis high-pressure pump; the residual chlorine on-line monitoring unit is connected with the tap water pool; the tap water tank is connected with the reverse osmosis high-pressure pump, the reverse osmosis unit and the concentrated water recovery water tank in sequence through a reverse osmosis concentrated water discharge pipeline. The utility model discloses make full use of water resource solves the water waste problem that the direct emission of dense water caused to and the pollution problem of high salinity waste water to the environment.
Description
Technical Field
The utility model relates to a dense water recycling system, especially a reverse osmosis dense water recycling system.
Background
From the current international and domestic forms of water resources, the fact that water resource shortage is a struggle is provided, and all countries make articles on how to save water resources and how to fully utilize water resources so as to relieve the increasingly severe shortage of water resources.
The reverse osmosis process is a mature desalination technology in the existing water treatment industry and is widely applied to various industries. Reverse osmosis is a process that is opposite to the natural osmosis phenomenon resulting from the application of pressure to a concentrated solution in contact with a semi-permeable membrane. When the applied pressure exceeds the natural osmotic pressure of the solution, the solution will flow through the semi-permeable membrane, forming a dilute solution on the opposite side and a more concentrated solution on the pressurized side, a phenomenon known as reverse osmosis.
Compared with the traditional ion exchange process, the reverse osmosis does not need acid-base regeneration, does not produce acid-base wastewater discharge, greatly reduces the environmental pollution and greatly reduces the daily operation cost. However, reverse osmosis has a disadvantage compared with the traditional ion exchange, the utilization rate of raw water in the reverse osmosis process is low, the reaction is not thorough, the recovery rate is generally less than or equal to 75%, the resource is further wasted, and the utilization rate of raw water in the ion exchange process is approximately equal to 90%, so that the reverse osmosis process can be further improved.
SUMMERY OF THE UTILITY MODEL
To the not enough among the above-mentioned prior art, the utility model provides a reverse osmosis dense water recycling system, the water waste problem that the concentrated water direct discharge caused is solved to the make full use of water resource to and the pollution problem of high salinity waste water to the environment.
The utility model discloses a realize according to following technical scheme:
a reverse osmosis concentrated water recycling system comprises a circulation passage consisting of a recycling device and a tap water pool;
the recovery device comprises a concentrated water recovery water tank and a concentrated water booster pump which are sequentially connected through a reverse osmosis concentrated water drainage pipeline;
the recycling device comprises a concentrated water reverse osmosis high-pressure pump, a concentrated water reverse osmosis unit, a pH online monitoring unit, a conductivity online monitoring unit and a residual chlorine online monitoring unit which are sequentially connected through a reverse osmosis concentrated water drainage pipeline;
the output end of the concentrated water booster pump is connected with the input end of the concentrated water reverse osmosis high-pressure pump through the reverse osmosis concentrated water drainage pipeline;
the residual chlorine on-line monitoring unit is connected with the input end of the tap water tank through the reverse osmosis concentrated water drainage pipeline;
the output end of the tap water tank is sequentially connected with the reverse osmosis high-pressure pump, the reverse osmosis unit and the concentrated water recovery water tank through the reverse osmosis concentrated water discharge pipeline.
Preferably, the recovery device further comprises a first scale inhibitor dosing unit and a pH adjusting unit, wherein the first scale inhibitor dosing unit and the pH adjusting unit are connected with the output end of the concentrated water booster pump through the reverse osmosis concentrated water drainage pipeline.
Preferably, the recycling device further comprises a sodium hypochlorite dosing unit, and the sodium hypochlorite dosing unit is connected with the input end of the pH online monitoring unit through the reverse osmosis concentrated water drainage pipeline.
Preferably, a sand filtration water supply pump, a sand filtration device and a first safety filter are sequentially arranged between the tap water tank and the reverse osmosis high-pressure pump.
Preferably, a second scale inhibitor dosing unit is arranged between the first safety filter and the reverse osmosis high-pressure pump.
Preferably, a second cartridge filter is arranged between the concentrated water booster pump and the concentrated water reverse osmosis high-pressure pump.
Preferably, the concentrated water recovery water tank further comprises a bottom access hole, and the bottom access hole is connected with an access valve.
Preferably, the first scale inhibitor dosing unit or the second scale inhibitor dosing unit further comprises a scale inhibitor metering tank, and the scale inhibitor metering tank is connected with a scale inhibitor metering pump.
Preferably, the pH adjusting unit further comprises an alkali metering tank, and the alkali metering tank is connected with an alkali metering pump.
Preferably, the sodium hypochlorite dosing unit further comprises a sodium hypochlorite metering box, and the sodium hypochlorite metering box is connected with a sodium hypochlorite metering pump.
Has the advantages that:
the utility model provides a dense water recovery system of recycling of reverse osmosis possesses following beneficial effect:
the utility model discloses utilize recovery unit, recycle device and running water pond to constitute circulation path, retrieve reverse osmosis system exhaust high salinity waste water through dense water recovery unit, but furthest utilizes reverse osmosis dense water, solves the water waste that dense water direct discharge caused to and the pollution problem of high salinity waste water to the environment, the make full use of water resource reaches the using water wisely, reduces and discharges. Has obvious effects on energy conservation, consumption reduction, environmental protection and economic benefit improvement of factories.
Drawings
Fig. 1 is a schematic connection diagram of each apparatus of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
The present invention will be further described with reference to fig. 1 and the following examples.
In the technical scheme, the reverse osmosis concentrated water recycling system comprises a recycling device, a circulating channel consisting of a tap water pool, and is characterized in that:
the recovery device comprises a concentrated water recovery water tank and a concentrated water booster pump which are sequentially connected through a reverse osmosis concentrated water discharge pipeline;
the recycling device comprises a concentrated water reverse osmosis high-pressure pump, a concentrated water reverse osmosis unit, a pH online monitoring unit, a conductivity online monitoring unit and a residual chlorine online monitoring unit which are sequentially connected through a reverse osmosis concentrated water drainage pipeline;
the output end of the concentrated water booster pump is connected with the input end of the concentrated water reverse osmosis high-pressure pump through a reverse osmosis concentrated water drainage pipeline;
the residual chlorine on-line monitoring unit is connected with the input end of the tap water tank through a reverse osmosis concentrated water drainage pipeline;
the output end of the tap water tank is sequentially connected with the reverse osmosis high-pressure pump, the reverse osmosis unit and the concentrated water recovery water tank through the reverse osmosis concentrated water discharge pipeline.
In this embodiment, as shown in fig. 1, after the reverse osmosis device produces the concentrated water, the concentrated water is discharged to the concentrated water recovery tank through the reverse osmosis concentrated water discharge pipeline, and after the liquid level in the concentrated water recovery tank rises, the concentrated water is pressurized sequentially through the concentrated water booster pump and the concentrated water reverse osmosis high-pressure pump, and the concentrated water is discharged to the concentrated water reverse osmosis unit through the reverse osmosis concentrated water discharge pipeline. The concentrated water reverse osmosis unit sends the produced concentrated water to the pH on-line monitoring unit, the conductivity on-line monitoring unit, the residual chlorine on-line monitoring unit and the tap water pool in sequence through pipelines.
In the technical scheme, when the pH value of the concentrated water monitored by the pH on-line monitoring unit is between 7.5 and 8.5, the conductivity of the concentrated water monitored by the conductivity on-line monitoring unit is less than or equal to 300 mu s/cm, and the chlorine residual water inlet requirement of the concentrated water monitored by the chlorine residual on-line monitoring unit is more than 0 and less than 0.1ppm, the concentrated water is discharged into a tap water pool;
otherwise, if any one of the monitoring values of the pH value, the conductivity and the residual chlorine does not meet the conditions, the concentrated water is recovered again and enters the recovery device again for further filtration.
The pH on-line monitoring unit is used for monitoring the pH value of the concentrated water. The standard qualified range of the pH is 7.5-8.5, if the standard qualified range exceeds the standard, the system gives an alarm, and after the alarm, the alkali adding amount is adjusted until the pH value of the concentrated water is within the standard qualified range, so that the next link can be entered.
The addition of alkali is carried out in concentrated water, here a 5% NaOH solution, in order to remove CO2 contained in the water body. Theoretically, when the pH =8.3, the conductivity of reverse osmosis produced water reaches the lowest value, and the pH standard of the reverse osmosis inlet water of the concentrated water controlled by the system is 7.5-8.5.
The conductivity on-line monitoring unit is used for monitoring the salt content in the discharged concentrated water, the conductivity is in direct proportion to the salt content, the salt content is low, and the conductivity is low, so that the water quality of the concentrated water can be further filtered.
When the conductivity standard is less than or equal to 300 mus/cm, the treated concentrated water is discharged into a tap water pool, and if the conductivity standard exceeds the standard, the concentrated water is directly discharged and recycled.
The residual chlorine on-line monitoring unit is used for monitoring the chlorine content of the concentrated water, the residual chlorine is used for inhibiting the breeding of microorganisms in the water, the residual chlorine inflow requirement of the reverse osmosis membrane is less than 0.1ppm, the residual chlorine control standard is greater than 0 and less than 0.1ppm, if the residual chlorine inflow requirement exceeds the standard, the system is adjusted and recovers the concentrated water after alarming, sodium hypochlorite is added into the concentrated water through the sodium hypochlorite unit, and the concentrated water enters the next link after reaching the qualified range.
When any one of the monitoring values of the pH value, the conductivity and the residual chlorine does not meet the conditions, the produced water in the tap water tank enters the reverse osmosis high-pressure pump and the reverse osmosis unit again to produce concentrated water, and the concentrated water enters the concentrated water recovery water tank through the reverse osmosis concentrated water discharge pipeline for recovery and reuse in the next cycle.
In the technical scheme, a first scale inhibitor dosing unit and a pH adjusting unit are added into the recovery device, are connected with the output end of a concentrated water booster pump, and deliver concentrated water to a concentrated water reverse osmosis high-pressure pump.
After the scale inhibitor is added into the concentrated water, the solution has the concentration of 3 percent, the scale inhibitor addition concentration standard is 3-6ppm, and the scale inhibitor is matched with a pH adjusting unit for use, so that the scale formation of a reverse osmosis membrane surface can be prevented, the water yield and the water quality can be improved, and the system operation cost can be reduced.
In the technical scheme, a sodium hypochlorite dosing unit is added in the recycling device, and the sodium hypochlorite dosing unit is connected with the input end of the pH on-line monitoring unit through the reverse osmosis concentrated water drainage pipeline.
Sodium hypochlorite is added into the concentrated water produced in the concentrated water reverse osmosis device, oxidation treatment is carried out, an alkaline environment is provided for the concentrated water, and the pH value of the concentrated water is adjusted to reach the monitoring standard of the pH online monitoring unit on the concentrated water.
In this technical scheme, still be equipped with sand filtration water supply pump, sand filtration device, first safety filter in proper order between running water pond and the reverse osmosis high-pressure pump, through sand filtration water supply pump and sand filtration device, effectively detach aquatic suspended solid, organic matter, colloidal particle etc. reduce the water turbidity, through first safety filter, further get rid of microorganism, chlorine again, smell flavor and partial heavy metal ion, finally make quality of water reach reverse osmosis membrane's requirement of intaking.
In the technical scheme, a second security filter is arranged between the concentrated water booster pump and the concentrated water reverse osmosis high-pressure pump, and the concentrated water generated in the concentrated water booster pump is passed through the second security filter to remove impurities in the water and then is sent into the concentrated water reverse osmosis high-pressure pump, so that the service life of a reverse osmosis membrane of the concentrated water reverse osmosis high-pressure pump can be prolonged.
In the technical scheme, a second scale inhibitor dosing unit is arranged between the second security filter and the reverse osmosis high-pressure pump, and the scale inhibitor is added into the water filtered by the second security filter and then enters the reverse osmosis high-pressure pump, so that the scale on the reverse osmosis membrane surface can be prevented, and the water yield and the quality can be improved.
In this technical scheme, the bottom of dense water recovery water tank is equipped with the access hole, and the access hole of bottom is connected and is overhauld the valve. When the concentrated water recovery tank goes wrong, the maintenance valve can be closed, and the concentrated water recovery tank is repaired or replaced.
In the technical scheme, the first scale inhibitor dosing unit or the second scale inhibitor dosing unit further comprises a scale inhibitor metering tank, and the scale inhibitor metering tank is connected with a scale inhibitor metering pump. The scale inhibitor metering box is used for throwing a set amount of scale inhibitor, and the scale inhibitor metering pump can throw the scale inhibitor into water at set time according to actual conditions.
In the technical scheme, the pH adjusting unit further comprises an alkali metering box, and the alkali metering box is connected with an alkali metering pump. The alkali metering tank is used for throwing the alkaline chemical agent of setting for the volume, and the alkaline chemical agent can be regularly put into to the aquatic to the alkali metering pump according to actual conditions.
In this technical scheme, sodium hypochlorite adds the medicine unit and still includes the sodium hypochlorite batch meter, and the sodium hypochlorite batch meter is connected the sodium hypochlorite measuring pump. The sodium hypochlorite metering box is used for throwing into the sodium hypochlorite medicament of setting for a certain amount, and the sodium hypochlorite medicament can be regularly put into to the aquatic according to actual conditions to the sodium hypochlorite metering pump.
In the embodiment, the concentrated water of the reverse osmosis concentrated water recycling system accounts for 70% of the directly discharged concentrated water, and the energy-saving potential is great. After the sodium hypochlorite dosing unit and the pH adjusting unit are added, the standard of tap water can be completely met, and the method has a practical prospect.
Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.
Claims (10)
1. The utility model provides a dense water of reverse osmosis retrieves system of recycling which characterized in that: comprises a recycling device and a circulation passage consisting of a tap water pool;
the recovery device comprises a concentrated water recovery water tank and a concentrated water booster pump which are sequentially connected through a reverse osmosis concentrated water drainage pipeline;
the recycling device comprises a concentrated water reverse osmosis high-pressure pump, a concentrated water reverse osmosis unit, a pH online monitoring unit, a conductivity online monitoring unit and a residual chlorine online monitoring unit which are sequentially connected through a reverse osmosis concentrated water drainage pipeline;
the output end of the concentrated water booster pump is connected with the input end of the concentrated water reverse osmosis high-pressure pump through the reverse osmosis concentrated water drainage pipeline;
the residual chlorine on-line monitoring unit is connected with the input end of the tap water tank through the reverse osmosis concentrated water drainage pipeline;
the output end of the tap water tank is sequentially connected with the reverse osmosis high-pressure pump, the reverse osmosis unit and the concentrated water recovery water tank through the reverse osmosis concentrated water discharge pipeline.
2. The reverse osmosis concentrated water recycling system according to claim 1, wherein: the recycling device further comprises a first scale inhibitor dosing unit and a pH adjusting unit, wherein the first scale inhibitor dosing unit and the pH adjusting unit are connected with the output end of the concentrated water booster pump through the reverse osmosis concentrated water drainage pipeline.
3. The reverse osmosis concentrated water recycling system according to claim 1, wherein: the recycling device further comprises a sodium hypochlorite dosing unit, and the sodium hypochlorite dosing unit is connected with the input end of the pH on-line monitoring unit through the reverse osmosis concentrated water drainage pipeline.
4. The reverse osmosis concentrated water recycling system according to claim 1, wherein: and a sand filtration water supply pump, a sand filtration device and a first safety filter are sequentially arranged between the tap water tank and the reverse osmosis high-pressure pump.
5. The reverse osmosis concentrated water recycling system according to claim 4, wherein: and a second scale inhibitor dosing unit is arranged between the first safety filter and the reverse osmosis high-pressure pump.
6. The reverse osmosis concentrated water recycling system according to claim 1, wherein: and a second security filter is arranged between the concentrated water booster pump and the concentrated water reverse osmosis high-pressure pump.
7. The reverse osmosis concentrated water recycling system according to claim 1, wherein: the concentrated water recovery water tank further comprises a bottom access hole, and the bottom access hole is connected with an access valve.
8. The reverse osmosis concentrated water recycling system according to claim 2, wherein: the first scale inhibitor dosing unit or the second scale inhibitor dosing unit further comprises a scale inhibitor metering tank, and the scale inhibitor metering tank is connected with a scale inhibitor metering pump.
9. The reverse osmosis concentrated water recycling system according to claim 2, wherein: the pH adjusting unit further comprises an alkali metering box, and the alkali metering box is connected with an alkali metering pump.
10. A reverse osmosis concentrate recycling system according to claim 3, wherein: the sodium hypochlorite adds the medicine unit and still includes the sodium hypochlorite batch meter, the sodium hypochlorite batch meter is connected the sodium hypochlorite measuring pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022283115.XU CN214141857U (en) | 2020-10-14 | 2020-10-14 | Reverse osmosis concentrated water recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022283115.XU CN214141857U (en) | 2020-10-14 | 2020-10-14 | Reverse osmosis concentrated water recycling system |
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| Publication Number | Publication Date |
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| CN214141857U true CN214141857U (en) | 2021-09-07 |
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| CN202022283115.XU Active CN214141857U (en) | 2020-10-14 | 2020-10-14 | Reverse osmosis concentrated water recycling system |
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| CN (1) | CN214141857U (en) |
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- 2020-10-14 CN CN202022283115.XU patent/CN214141857U/en active Active
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